diff --git a/vendor/github.com/containernetworking/cni/pkg/ns/ns_linux.go b/vendor/github.com/containernetworking/cni/pkg/ns/ns_linux.go new file mode 100644 index 000000000..3d58e75d6 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/ns/ns_linux.go @@ -0,0 +1,50 @@ +// Copyright 2022 CNI 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 ns + +import ( + "runtime" + + "github.com/vishvananda/netns" + + "github.com/containernetworking/cni/pkg/types" +) + +// Returns an object representing the current OS thread's network namespace +func getCurrentNS() (netns.NsHandle, error) { + // Lock the thread in case other goroutine executes in it and changes its + // network namespace after getCurrentThreadNetNSPath(), otherwise it might + // return an unexpected network namespace. + runtime.LockOSThread() + defer runtime.UnlockOSThread() + return netns.Get() +} + +func CheckNetNS(nsPath string) (bool, *types.Error) { + ns, err := netns.GetFromPath(nsPath) + // Let plugins check whether nsPath from args is valid. Also support CNI DEL for empty nsPath as already-deleted nsPath. + if err != nil { + return false, nil + } + defer ns.Close() + + pluginNS, err := getCurrentNS() + if err != nil { + return false, types.NewError(types.ErrInvalidNetNS, "get plugin's netns failed", "") + } + defer pluginNS.Close() + + return pluginNS.Equal(ns), nil +} diff --git a/vendor/github.com/containernetworking/cni/pkg/ns/ns_windows.go b/vendor/github.com/containernetworking/cni/pkg/ns/ns_windows.go new file mode 100644 index 000000000..cffe13617 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/ns/ns_windows.go @@ -0,0 +1,21 @@ +// Copyright 2022 CNI 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 ns + +import "github.com/containernetworking/cni/pkg/types" + +func CheckNetNS(nsPath string) (bool, *types.Error) { + return false, nil +} diff --git a/vendor/github.com/containernetworking/cni/pkg/skel/skel.go b/vendor/github.com/containernetworking/cni/pkg/skel/skel.go index cb8781972..f29cf3459 100644 --- a/vendor/github.com/containernetworking/cni/pkg/skel/skel.go +++ b/vendor/github.com/containernetworking/cni/pkg/skel/skel.go @@ -19,13 +19,14 @@ package skel import ( "bytes" "encoding/json" + "errors" "fmt" "io" - "io/ioutil" "log" "os" "strings" + "github.com/containernetworking/cni/pkg/ns" "github.com/containernetworking/cni/pkg/types" "github.com/containernetworking/cni/pkg/utils" "github.com/containernetworking/cni/pkg/version" @@ -34,12 +35,13 @@ import ( // CmdArgs captures all the arguments passed in to the plugin // via both env vars and stdin type CmdArgs struct { - ContainerID string - Netns string - IfName string - Args string - Path string - StdinData []byte + ContainerID string + Netns string + IfName string + Args string + Path string + NetnsOverride string + StdinData []byte } type dispatcher struct { @@ -55,21 +57,25 @@ type dispatcher struct { type reqForCmdEntry map[string]bool func (t *dispatcher) getCmdArgsFromEnv() (string, *CmdArgs, *types.Error) { - var cmd, contID, netns, ifName, args, path string + var cmd, contID, netns, ifName, args, path, netnsOverride string vars := []struct { - name string - val *string - reqForCmd reqForCmdEntry + name string + val *string + reqForCmd reqForCmdEntry + validateFn func(string) *types.Error }{ { "CNI_COMMAND", &cmd, reqForCmdEntry{ - "ADD": true, - "CHECK": true, - "DEL": true, + "ADD": true, + "CHECK": true, + "DEL": true, + "GC": true, + "STATUS": true, }, + nil, }, { "CNI_CONTAINERID", @@ -79,6 +85,7 @@ func (t *dispatcher) getCmdArgsFromEnv() (string, *CmdArgs, *types.Error) { "CHECK": true, "DEL": true, }, + utils.ValidateContainerID, }, { "CNI_NETNS", @@ -88,6 +95,7 @@ func (t *dispatcher) getCmdArgsFromEnv() (string, *CmdArgs, *types.Error) { "CHECK": true, "DEL": false, }, + nil, }, { "CNI_IFNAME", @@ -97,6 +105,7 @@ func (t *dispatcher) getCmdArgsFromEnv() (string, *CmdArgs, *types.Error) { "CHECK": true, "DEL": true, }, + utils.ValidateInterfaceName, }, { "CNI_ARGS", @@ -106,15 +115,29 @@ func (t *dispatcher) getCmdArgsFromEnv() (string, *CmdArgs, *types.Error) { "CHECK": false, "DEL": false, }, + nil, }, { "CNI_PATH", &path, reqForCmdEntry{ - "ADD": true, - "CHECK": true, - "DEL": true, + "ADD": true, + "CHECK": true, + "DEL": true, + "GC": true, + "STATUS": true, + }, + nil, + }, + { + "CNI_NETNS_OVERRIDE", + &netnsOverride, + reqForCmdEntry{ + "ADD": false, + "CHECK": false, + "DEL": false, }, + nil, }, } @@ -125,6 +148,10 @@ func (t *dispatcher) getCmdArgsFromEnv() (string, *CmdArgs, *types.Error) { if v.reqForCmd[cmd] || v.name == "CNI_COMMAND" { argsMissing = append(argsMissing, v.name) } + } else if v.reqForCmd[cmd] && v.validateFn != nil { + if err := v.validateFn(*v.val); err != nil { + return "", nil, err + } } } @@ -137,18 +164,25 @@ func (t *dispatcher) getCmdArgsFromEnv() (string, *CmdArgs, *types.Error) { t.Stdin = bytes.NewReader(nil) } - stdinData, err := ioutil.ReadAll(t.Stdin) + stdinData, err := io.ReadAll(t.Stdin) if err != nil { return "", nil, types.NewError(types.ErrIOFailure, fmt.Sprintf("error reading from stdin: %v", err), "") } + if cmd != "VERSION" { + if err := validateConfig(stdinData); err != nil { + return "", nil, err + } + } + cmdArgs := &CmdArgs{ - ContainerID: contID, - Netns: netns, - IfName: ifName, - Args: args, - Path: path, - StdinData: stdinData, + ContainerID: contID, + Netns: netns, + IfName: ifName, + Args: args, + Path: path, + StdinData: stdinData, + NetnsOverride: netnsOverride, } return cmd, cmdArgs, nil } @@ -163,8 +197,13 @@ func (t *dispatcher) checkVersionAndCall(cmdArgs *CmdArgs, pluginVersionInfo ver return types.NewError(types.ErrIncompatibleCNIVersion, "incompatible CNI versions", verErr.Details()) } + if toCall == nil { + return nil + } + if err = toCall(cmdArgs); err != nil { - if e, ok := err.(*types.Error); ok { + var e *types.Error + if errors.As(err, &e) { // don't wrap Error in Error return e } @@ -190,7 +229,7 @@ func validateConfig(jsonBytes []byte) *types.Error { return nil } -func (t *dispatcher) pluginMain(cmdAdd, cmdCheck, cmdDel func(_ *CmdArgs) error, versionInfo version.PluginInfo, about string) *types.Error { +func (t *dispatcher) pluginMain(funcs CNIFuncs, versionInfo version.PluginInfo, about string) *types.Error { cmd, cmdArgs, err := t.getCmdArgsFromEnv() if err != nil { // Print the about string to stderr when no command is set @@ -202,21 +241,20 @@ func (t *dispatcher) pluginMain(cmdAdd, cmdCheck, cmdDel func(_ *CmdArgs) error, return err } - if cmd != "VERSION" { - if err = validateConfig(cmdArgs.StdinData); err != nil { - return err - } - if err = utils.ValidateContainerID(cmdArgs.ContainerID); err != nil { + switch cmd { + case "ADD": + err = t.checkVersionAndCall(cmdArgs, versionInfo, funcs.Add) + if err != nil { return err } - if err = utils.ValidateInterfaceName(cmdArgs.IfName); err != nil { - return err + if strings.ToUpper(cmdArgs.NetnsOverride) != "TRUE" && cmdArgs.NetnsOverride != "1" { + isPluginNetNS, checkErr := ns.CheckNetNS(cmdArgs.Netns) + if checkErr != nil { + return checkErr + } else if isPluginNetNS { + return types.NewError(types.ErrInvalidNetNS, "plugin's netns and netns from CNI_NETNS should not be the same", "") + } } - } - - switch cmd { - case "ADD": - err = t.checkVersionAndCall(cmdArgs, versionInfo, cmdAdd) case "CHECK": configVersion, err := t.ConfVersionDecoder.Decode(cmdArgs.StdinData) if err != nil { @@ -232,7 +270,7 @@ func (t *dispatcher) pluginMain(cmdAdd, cmdCheck, cmdDel func(_ *CmdArgs) error, if err != nil { return types.NewError(types.ErrDecodingFailure, err.Error(), "") } else if gtet { - if err := t.checkVersionAndCall(cmdArgs, versionInfo, cmdCheck); err != nil { + if err := t.checkVersionAndCall(cmdArgs, versionInfo, funcs.Check); err != nil { return err } return nil @@ -240,7 +278,62 @@ func (t *dispatcher) pluginMain(cmdAdd, cmdCheck, cmdDel func(_ *CmdArgs) error, } return types.NewError(types.ErrIncompatibleCNIVersion, "plugin version does not allow CHECK", "") case "DEL": - err = t.checkVersionAndCall(cmdArgs, versionInfo, cmdDel) + err = t.checkVersionAndCall(cmdArgs, versionInfo, funcs.Del) + if err != nil { + return err + } + if strings.ToUpper(cmdArgs.NetnsOverride) != "TRUE" && cmdArgs.NetnsOverride != "1" { + isPluginNetNS, checkErr := ns.CheckNetNS(cmdArgs.Netns) + if checkErr != nil { + return checkErr + } else if isPluginNetNS { + return types.NewError(types.ErrInvalidNetNS, "plugin's netns and netns from CNI_NETNS should not be the same", "") + } + } + case "GC": + configVersion, err := t.ConfVersionDecoder.Decode(cmdArgs.StdinData) + if err != nil { + return types.NewError(types.ErrDecodingFailure, err.Error(), "") + } + if gtet, err := version.GreaterThanOrEqualTo(configVersion, "1.1.0"); err != nil { + return types.NewError(types.ErrDecodingFailure, err.Error(), "") + } else if !gtet { + return types.NewError(types.ErrIncompatibleCNIVersion, "config version does not allow GC", "") + } + for _, pluginVersion := range versionInfo.SupportedVersions() { + gtet, err := version.GreaterThanOrEqualTo(pluginVersion, configVersion) + if err != nil { + return types.NewError(types.ErrDecodingFailure, err.Error(), "") + } else if gtet { + if err := t.checkVersionAndCall(cmdArgs, versionInfo, funcs.GC); err != nil { + return err + } + return nil + } + } + return types.NewError(types.ErrIncompatibleCNIVersion, "plugin version does not allow GC", "") + case "STATUS": + configVersion, err := t.ConfVersionDecoder.Decode(cmdArgs.StdinData) + if err != nil { + return types.NewError(types.ErrDecodingFailure, err.Error(), "") + } + if gtet, err := version.GreaterThanOrEqualTo(configVersion, "1.1.0"); err != nil { + return types.NewError(types.ErrDecodingFailure, err.Error(), "") + } else if !gtet { + return types.NewError(types.ErrIncompatibleCNIVersion, "config version does not allow STATUS", "") + } + for _, pluginVersion := range versionInfo.SupportedVersions() { + gtet, err := version.GreaterThanOrEqualTo(pluginVersion, configVersion) + if err != nil { + return types.NewError(types.ErrDecodingFailure, err.Error(), "") + } else if gtet { + if err := t.checkVersionAndCall(cmdArgs, versionInfo, funcs.Status); err != nil { + return err + } + return nil + } + } + return types.NewError(types.ErrIncompatibleCNIVersion, "plugin version does not allow STATUS", "") case "VERSION": if err := versionInfo.Encode(t.Stdout); err != nil { return types.NewError(types.ErrIOFailure, err.Error(), "") @@ -264,13 +357,63 @@ func (t *dispatcher) pluginMain(cmdAdd, cmdCheck, cmdDel func(_ *CmdArgs) error, // // To let this package automatically handle errors and call os.Exit(1) for you, // use PluginMain() instead. +// +// Deprecated: Use github.com/containernetworking/cni/pkg/skel.PluginMainFuncsWithError instead. func PluginMainWithError(cmdAdd, cmdCheck, cmdDel func(_ *CmdArgs) error, versionInfo version.PluginInfo, about string) *types.Error { + return PluginMainFuncsWithError(CNIFuncs{Add: cmdAdd, Check: cmdCheck, Del: cmdDel}, versionInfo, about) +} + +// CNIFuncs contains a group of callback command funcs to be passed in as +// parameters to the core "main" for a plugin. +type CNIFuncs struct { + Add func(_ *CmdArgs) error + Del func(_ *CmdArgs) error + Check func(_ *CmdArgs) error + GC func(_ *CmdArgs) error + Status func(_ *CmdArgs) error +} + +// PluginMainFuncsWithError is the core "main" for a plugin. It accepts +// callback functions defined within CNIFuncs and returns an error. +// +// The caller must also specify what CNI spec versions the plugin supports. +// +// It is the responsibility of the caller to check for non-nil error return. +// +// For a plugin to comply with the CNI spec, it must print any error to stdout +// as JSON and then exit with nonzero status code. +// +// To let this package automatically handle errors and call os.Exit(1) for you, +// use PluginMainFuncs() instead. +func PluginMainFuncsWithError(funcs CNIFuncs, versionInfo version.PluginInfo, about string) *types.Error { return (&dispatcher{ Getenv: os.Getenv, Stdin: os.Stdin, Stdout: os.Stdout, Stderr: os.Stderr, - }).pluginMain(cmdAdd, cmdCheck, cmdDel, versionInfo, about) + }).pluginMain(funcs, versionInfo, about) +} + +// PluginMainFuncs is the core "main" for a plugin which includes automatic error handling. +// This is a newer alternative func to PluginMain which abstracts CNI commands within a +// CNIFuncs interface. +// +// The caller must also specify what CNI spec versions the plugin supports. +// +// The caller can specify an "about" string, which is printed on stderr +// when no CNI_COMMAND is specified. The recommended output is "CNI plugin v" +// +// When an error occurs in any func in CNIFuncs, PluginMainFuncs will print the error +// as JSON to stdout and call os.Exit(1). +// +// To have more control over error handling, use PluginMainFuncsWithError() instead. +func PluginMainFuncs(funcs CNIFuncs, versionInfo version.PluginInfo, about string) { + if e := PluginMainFuncsWithError(funcs, versionInfo, about); e != nil { + if err := e.Print(); err != nil { + log.Print("Error writing error JSON to stdout: ", err) + } + os.Exit(1) + } } // PluginMain is the core "main" for a plugin which includes automatic error handling. @@ -284,6 +427,8 @@ func PluginMainWithError(cmdAdd, cmdCheck, cmdDel func(_ *CmdArgs) error, versio // as JSON to stdout and call os.Exit(1). // // To have more control over error handling, use PluginMainWithError() instead. +// +// Deprecated: Use github.com/containernetworking/cni/pkg/skel.PluginMainFuncs instead. func PluginMain(cmdAdd, cmdCheck, cmdDel func(_ *CmdArgs) error, versionInfo version.PluginInfo, about string) { if e := PluginMainWithError(cmdAdd, cmdCheck, cmdDel, versionInfo, about); e != nil { if err := e.Print(); err != nil { diff --git a/vendor/github.com/containernetworking/cni/pkg/types/100/types.go b/vendor/github.com/containernetworking/cni/pkg/types/100/types.go index 0e1e8b857..f58b91206 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/100/types.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/100/types.go @@ -26,9 +26,10 @@ import ( convert "github.com/containernetworking/cni/pkg/types/internal" ) -const ImplementedSpecVersion string = "1.0.0" +// The types did not change between v1.0 and v1.1 +const ImplementedSpecVersion string = "1.1.0" -var supportedVersions = []string{ImplementedSpecVersion} +var supportedVersions = []string{"1.0.0", "1.1.0"} // Register converters for all versions less than the implemented spec version func init() { @@ -38,10 +39,14 @@ func init() { convert.RegisterConverter("0.3.0", supportedVersions, convertFrom04x) convert.RegisterConverter("0.3.1", supportedVersions, convertFrom04x) convert.RegisterConverter("0.4.0", supportedVersions, convertFrom04x) + convert.RegisterConverter("1.0.0", []string{"1.1.0"}, convertFrom100) // Down-converters convert.RegisterConverter("1.0.0", []string{"0.3.0", "0.3.1", "0.4.0"}, convertTo04x) convert.RegisterConverter("1.0.0", []string{"0.1.0", "0.2.0"}, convertTo02x) + convert.RegisterConverter("1.1.0", []string{"0.3.0", "0.3.1", "0.4.0"}, convertTo04x) + convert.RegisterConverter("1.1.0", []string{"0.1.0", "0.2.0"}, convertTo02x) + convert.RegisterConverter("1.1.0", []string{"1.0.0"}, convertFrom100) // Creator convert.RegisterCreator(supportedVersions, NewResult) @@ -90,12 +95,49 @@ type Result struct { DNS types.DNS `json:"dns,omitempty"` } +// Note: DNS should be omit if DNS is empty but default Marshal function +// will output empty structure hence need to write a Marshal function +func (r *Result) MarshalJSON() ([]byte, error) { + // use type alias to escape recursion for json.Marshal() to MarshalJSON() + type fixObjType = Result + + bytes, err := json.Marshal(fixObjType(*r)) //nolint:all + if err != nil { + return nil, err + } + + fixupObj := make(map[string]interface{}) + if err := json.Unmarshal(bytes, &fixupObj); err != nil { + return nil, err + } + + if r.DNS.IsEmpty() { + delete(fixupObj, "dns") + } + + return json.Marshal(fixupObj) +} + +// convertFrom100 does nothing except set the version; the types are the same +func convertFrom100(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*Result) + + result := &Result{ + CNIVersion: toVersion, + Interfaces: fromResult.Interfaces, + IPs: fromResult.IPs, + Routes: fromResult.Routes, + DNS: fromResult.DNS, + } + return result, nil +} + func convertFrom02x(from types.Result, toVersion string) (types.Result, error) { result040, err := convert.Convert(from, "0.4.0") if err != nil { return nil, err } - result100, err := convertFrom04x(result040, ImplementedSpecVersion) + result100, err := convertFrom04x(result040, toVersion) if err != nil { return nil, err } @@ -226,9 +268,12 @@ func (r *Result) PrintTo(writer io.Writer) error { // Interface contains values about the created interfaces type Interface struct { - Name string `json:"name"` - Mac string `json:"mac,omitempty"` - Sandbox string `json:"sandbox,omitempty"` + Name string `json:"name"` + Mac string `json:"mac,omitempty"` + Mtu int `json:"mtu,omitempty"` + Sandbox string `json:"sandbox,omitempty"` + SocketPath string `json:"socketPath,omitempty"` + PciID string `json:"pciID,omitempty"` } func (i *Interface) String() string { diff --git a/vendor/github.com/containernetworking/cni/pkg/types/args.go b/vendor/github.com/containernetworking/cni/pkg/types/args.go index 7516f03ef..68a602bfd 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/args.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/args.go @@ -26,8 +26,8 @@ import ( type UnmarshallableBool bool // UnmarshalText implements the encoding.TextUnmarshaler interface. -// Returns boolean true if the string is "1" or "[Tt]rue" -// Returns boolean false if the string is "0" or "[Ff]alse" +// Returns boolean true if the string is "1" or "true" or "True" +// Returns boolean false if the string is "0" or "false" or "False” func (b *UnmarshallableBool) UnmarshalText(data []byte) error { s := strings.ToLower(string(data)) switch s { diff --git a/vendor/github.com/containernetworking/cni/pkg/types/create/create.go b/vendor/github.com/containernetworking/cni/pkg/types/create/create.go index ed28b33e8..452cb6220 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/create/create.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/create/create.go @@ -19,6 +19,9 @@ import ( "fmt" "github.com/containernetworking/cni/pkg/types" + _ "github.com/containernetworking/cni/pkg/types/020" + _ "github.com/containernetworking/cni/pkg/types/040" + _ "github.com/containernetworking/cni/pkg/types/100" convert "github.com/containernetworking/cni/pkg/types/internal" ) diff --git a/vendor/github.com/containernetworking/cni/pkg/types/types.go b/vendor/github.com/containernetworking/cni/pkg/types/types.go index fba17dfc0..193ac46ef 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/types.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/types.go @@ -64,16 +64,55 @@ type NetConf struct { Type string `json:"type,omitempty"` Capabilities map[string]bool `json:"capabilities,omitempty"` IPAM IPAM `json:"ipam,omitempty"` - DNS DNS `json:"dns"` + DNS DNS `json:"dns,omitempty"` RawPrevResult map[string]interface{} `json:"prevResult,omitempty"` PrevResult Result `json:"-"` + + // ValidAttachments is only supplied when executing a GC operation + ValidAttachments []GCAttachment `json:"cni.dev/valid-attachments,omitempty"` +} + +// GCAttachment is the parameters to a GC call -- namely, +// the container ID and ifname pair that represents a +// still-valid attachment. +type GCAttachment struct { + ContainerID string `json:"containerID"` + IfName string `json:"ifname"` +} + +// Note: DNS should be omit if DNS is empty but default Marshal function +// will output empty structure hence need to write a Marshal function +func (n *NetConf) MarshalJSON() ([]byte, error) { + // use type alias to escape recursion for json.Marshal() to MarshalJSON() + type fixObjType = NetConf + + bytes, err := json.Marshal(fixObjType(*n)) //nolint:all + if err != nil { + return nil, err + } + + fixupObj := make(map[string]interface{}) + if err := json.Unmarshal(bytes, &fixupObj); err != nil { + return nil, err + } + + if n.DNS.IsEmpty() { + delete(fixupObj, "dns") + } + + return json.Marshal(fixupObj) } type IPAM struct { Type string `json:"type,omitempty"` } +// IsEmpty returns true if IPAM structure has no value, otherwise return false +func (i *IPAM) IsEmpty() bool { + return i.Type == "" +} + // NetConfList describes an ordered list of networks. type NetConfList struct { CNIVersion string `json:"cniVersion,omitempty"` @@ -116,31 +155,48 @@ type DNS struct { Options []string `json:"options,omitempty"` } +// IsEmpty returns true if DNS structure has no value, otherwise return false +func (d *DNS) IsEmpty() bool { + if len(d.Nameservers) == 0 && d.Domain == "" && len(d.Search) == 0 && len(d.Options) == 0 { + return true + } + return false +} + func (d *DNS) Copy() *DNS { if d == nil { return nil } to := &DNS{Domain: d.Domain} - for _, ns := range d.Nameservers { - to.Nameservers = append(to.Nameservers, ns) - } - for _, s := range d.Search { - to.Search = append(to.Search, s) - } - for _, o := range d.Options { - to.Options = append(to.Options, o) - } + to.Nameservers = append(to.Nameservers, d.Nameservers...) + to.Search = append(to.Search, d.Search...) + to.Options = append(to.Options, d.Options...) return to } type Route struct { - Dst net.IPNet - GW net.IP + Dst net.IPNet + GW net.IP + MTU int + AdvMSS int + Priority int + Table *int + Scope *int } func (r *Route) String() string { - return fmt.Sprintf("%+v", *r) + table := "" + if r.Table != nil { + table = fmt.Sprintf("%d", *r.Table) + } + + scope := "" + if r.Scope != nil { + scope = fmt.Sprintf("%d", *r.Scope) + } + + return fmt.Sprintf("{Dst:%+v GW:%v MTU:%d AdvMSS:%d Priority:%d Table:%s Scope:%s}", r.Dst, r.GW, r.MTU, r.AdvMSS, r.Priority, table, scope) } func (r *Route) Copy() *Route { @@ -148,14 +204,30 @@ func (r *Route) Copy() *Route { return nil } - return &Route{ - Dst: r.Dst, - GW: r.GW, + route := &Route{ + Dst: r.Dst, + GW: r.GW, + MTU: r.MTU, + AdvMSS: r.AdvMSS, + Priority: r.Priority, + Scope: r.Scope, + } + + if r.Table != nil { + table := *r.Table + route.Table = &table } + + if r.Scope != nil { + scope := *r.Scope + route.Scope = &scope + } + + return route } // Well known error codes -// see https://github.com/containernetworking/cni/blob/master/SPEC.md#well-known-error-codes +// see https://github.com/containernetworking/cni/blob/main/SPEC.md#well-known-error-codes const ( ErrUnknown uint = iota // 0 ErrIncompatibleCNIVersion // 1 @@ -165,6 +237,7 @@ const ( ErrIOFailure // 5 ErrDecodingFailure // 6 ErrInvalidNetworkConfig // 7 + ErrInvalidNetNS // 8 ErrTryAgainLater uint = 11 ErrInternal uint = 999 ) @@ -200,8 +273,13 @@ func (e *Error) Print() error { // JSON (un)marshallable types type route struct { - Dst IPNet `json:"dst"` - GW net.IP `json:"gw,omitempty"` + Dst IPNet `json:"dst"` + GW net.IP `json:"gw,omitempty"` + MTU int `json:"mtu,omitempty"` + AdvMSS int `json:"advmss,omitempty"` + Priority int `json:"priority,omitempty"` + Table *int `json:"table,omitempty"` + Scope *int `json:"scope,omitempty"` } func (r *Route) UnmarshalJSON(data []byte) error { @@ -212,13 +290,24 @@ func (r *Route) UnmarshalJSON(data []byte) error { r.Dst = net.IPNet(rt.Dst) r.GW = rt.GW + r.MTU = rt.MTU + r.AdvMSS = rt.AdvMSS + r.Priority = rt.Priority + r.Table = rt.Table + r.Scope = rt.Scope + return nil } func (r Route) MarshalJSON() ([]byte, error) { rt := route{ - Dst: IPNet(r.Dst), - GW: r.GW, + Dst: IPNet(r.Dst), + GW: r.GW, + MTU: r.MTU, + AdvMSS: r.AdvMSS, + Priority: r.Priority, + Table: r.Table, + Scope: r.Scope, } return json.Marshal(rt) diff --git a/vendor/github.com/containernetworking/cni/pkg/utils/utils.go b/vendor/github.com/containernetworking/cni/pkg/utils/utils.go index b8ec38874..1981d2556 100644 --- a/vendor/github.com/containernetworking/cni/pkg/utils/utils.go +++ b/vendor/github.com/containernetworking/cni/pkg/utils/utils.go @@ -36,7 +36,6 @@ var cniReg = regexp.MustCompile(`^` + cniValidNameChars + `*$`) // ValidateContainerID will validate that the supplied containerID is not empty does not contain invalid characters func ValidateContainerID(containerID string) *types.Error { - if containerID == "" { return types.NewError(types.ErrUnknownContainer, "missing containerID", "") } @@ -48,7 +47,6 @@ func ValidateContainerID(containerID string) *types.Error { // ValidateNetworkName will validate that the supplied networkName does not contain invalid characters func ValidateNetworkName(networkName string) *types.Error { - if networkName == "" { return types.NewError(types.ErrInvalidNetworkConfig, "missing network name:", "") } @@ -58,11 +56,11 @@ func ValidateNetworkName(networkName string) *types.Error { return nil } -// ValidateInterfaceName will validate the interface name based on the three rules below +// ValidateInterfaceName will validate the interface name based on the four rules below // 1. The name must not be empty // 2. The name must be less than 16 characters // 3. The name must not be "." or ".." -// 3. The name must not contain / or : or any whitespace characters +// 4. The name must not contain / or : or any whitespace characters // ref to https://github.com/torvalds/linux/blob/master/net/core/dev.c#L1024 func ValidateInterfaceName(ifName string) *types.Error { if len(ifName) == 0 { diff --git a/vendor/github.com/containernetworking/cni/pkg/version/version.go b/vendor/github.com/containernetworking/cni/pkg/version/version.go index 1326f8038..a4d442c8e 100644 --- a/vendor/github.com/containernetworking/cni/pkg/version/version.go +++ b/vendor/github.com/containernetworking/cni/pkg/version/version.go @@ -19,13 +19,12 @@ import ( "fmt" "github.com/containernetworking/cni/pkg/types" - types100 "github.com/containernetworking/cni/pkg/types/100" "github.com/containernetworking/cni/pkg/types/create" ) // Current reports the version of the CNI spec implemented by this library func Current() string { - return types100.ImplementedSpecVersion + return "1.1.0" } // Legacy PluginInfo describes a plugin that is backwards compatible with the @@ -35,8 +34,10 @@ func Current() string { // // Any future CNI spec versions which meet this definition should be added to // this list. -var Legacy = PluginSupports("0.1.0", "0.2.0") -var All = PluginSupports("0.1.0", "0.2.0", "0.3.0", "0.3.1", "0.4.0", "1.0.0") +var ( + Legacy = PluginSupports("0.1.0", "0.2.0") + All = PluginSupports("0.1.0", "0.2.0", "0.3.0", "0.3.1", "0.4.0", "1.0.0", "1.1.0") +) // VersionsFrom returns a list of versions starting from min, inclusive func VersionsStartingFrom(min string) PluginInfo { diff --git a/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/NOTICE b/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/NOTICE new file mode 100644 index 000000000..3e2901b3a --- /dev/null +++ b/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/NOTICE @@ -0,0 +1 @@ +Copyright 2018 Kubernetes Network Plumbing Working Group diff --git a/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1/types.go b/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1/types.go index b5742ab33..f96016baf 100644 --- a/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1/types.go +++ b/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1/types.go @@ -1,6 +1,8 @@ package v1 import ( + "encoding/json" + "errors" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "net" ) @@ -43,7 +45,7 @@ const ( DeviceInfoTypeVHostUser = "vhost-user" DeviceInfoTypeMemif = "memif" DeviceInfoTypeVDPA = "vdpa" - DeviceInfoVersion = "1.0.0" + DeviceInfoVersion = "1.1.0" ) // DeviceInfo contains the information of the device associated @@ -58,18 +60,20 @@ type DeviceInfo struct { } type PciDevice struct { - PciAddress string `json:"pci-address,omitempty"` - Vhostnet string `json:"vhost-net,omitempty"` - RdmaDevice string `json:"rdma-device,omitempty"` - PfPciAddress string `json:"pf-pci-address,omitempty"` + PciAddress string `json:"pci-address,omitempty"` + Vhostnet string `json:"vhost-net,omitempty"` + RdmaDevice string `json:"rdma-device,omitempty"` + PfPciAddress string `json:"pf-pci-address,omitempty"` + RepresentorDevice string `json:"representor-device,omitempty"` } type VdpaDevice struct { - ParentDevice string `json:"parent-device,omitempty"` - Driver string `json:"driver,omitempty"` - Path string `json:"path,omitempty"` - PciAddress string `json:"pci-address,omitempty"` - PfPciAddress string `json:"pf-pci-address,omitempty"` + ParentDevice string `json:"parent-device,omitempty"` + Driver string `json:"driver,omitempty"` + Path string `json:"path,omitempty"` + PciAddress string `json:"pci-address,omitempty"` + PfPciAddress string `json:"pf-pci-address,omitempty"` + RepresentorDevice string `json:"representor-device,omitempty"` } const ( @@ -103,9 +107,11 @@ type NetworkStatus struct { Interface string `json:"interface,omitempty"` IPs []string `json:"ips,omitempty"` Mac string `json:"mac,omitempty"` + Mtu int `json:"mtu,omitempty"` Default bool `json:"default,omitempty"` DNS DNS `json:"dns,omitempty"` DeviceInfo *DeviceInfo `json:"device-info,omitempty"` + Gateway []string `json:"gateway,omitempty"` } // PortMapEntry for CNI PortMapEntry @@ -156,9 +162,26 @@ type NetworkSelectionElement struct { // the network BandwidthRequest *BandwidthEntry `json:"bandwidth,omitempty"` // CNIArgs contains additional CNI arguments for the network interface - CNIArgs *map[string]interface{} `json:"cni-args"` + CNIArgs *map[string]interface{} `json:"cni-args,omitempty"` // GatewayRequest contains default route IP address for the pod GatewayRequest []net.IP `json:"default-route,omitempty"` + // IPAMClaimReference container the IPAMClaim name where the IPs for this + // attachment will be located. + IPAMClaimReference string `json:"ipam-claim-reference,omitempty"` +} + +func (nse *NetworkSelectionElement) UnmarshalJSON(b []byte) error { + type networkSelectionElement NetworkSelectionElement + + var netSelectionElement networkSelectionElement + if err := json.Unmarshal(b, &netSelectionElement); err != nil { + return err + } + if len(netSelectionElement.IPRequest) > 0 && netSelectionElement.IPAMClaimReference != "" { + return TooManyIPSources + } + *nse = NetworkSelectionElement(netSelectionElement) + return nil } const ( @@ -166,8 +189,6 @@ const ( NetworkAttachmentAnnot = "k8s.v1.cni.cncf.io/networks" // Pod annotation for network status NetworkStatusAnnot = "k8s.v1.cni.cncf.io/network-status" - // Old Pod annotation for network status (which is used before but it will be obsolated) - OldNetworkStatusAnnot = "k8s.v1.cni.cncf.io/networks-status" ) // NoK8sNetworkError indicates error, no network in kubernetes @@ -177,3 +198,5 @@ type NoK8sNetworkError struct { } func (e *NoK8sNetworkError) Error() string { return string(e.Message) } + +var TooManyIPSources = errors.New("cannot provide a static IP and a reference of an IPAM claim in the same network selection element") diff --git a/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1/zz_generated.deepcopy.go b/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1/zz_generated.deepcopy.go index 1ceb1e6e4..9a7b1fcce 100644 --- a/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1/zz_generated.deepcopy.go +++ b/vendor/github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1/zz_generated.deepcopy.go @@ -1,3 +1,4 @@ +//go:build !ignore_autogenerated // +build !ignore_autogenerated /* diff --git a/vendor/github.com/vishvananda/netns/.golangci.yml b/vendor/github.com/vishvananda/netns/.golangci.yml new file mode 100644 index 000000000..600bef78e --- /dev/null +++ b/vendor/github.com/vishvananda/netns/.golangci.yml @@ -0,0 +1,2 @@ +run: + timeout: 5m diff --git a/vendor/github.com/vishvananda/netns/LICENSE b/vendor/github.com/vishvananda/netns/LICENSE new file mode 100644 index 000000000..9f64db858 --- /dev/null +++ b/vendor/github.com/vishvananda/netns/LICENSE @@ -0,0 +1,192 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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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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Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. 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 + + Copyright 2014 Vishvananda Ishaya. + Copyright 2014 Docker, 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. diff --git a/vendor/github.com/vishvananda/netns/README.md b/vendor/github.com/vishvananda/netns/README.md new file mode 100644 index 000000000..bdfedbe81 --- /dev/null +++ b/vendor/github.com/vishvananda/netns/README.md @@ -0,0 +1,51 @@ +# netns - network namespaces in go # + +The netns package provides an ultra-simple interface for handling +network namespaces in go. Changing namespaces requires elevated +privileges, so in most cases this code needs to be run as root. + +## Local Build and Test ## + +You can use go get command: + + go get github.com/vishvananda/netns + +Testing (requires root): + + sudo -E go test github.com/vishvananda/netns + +## Example ## + +```go +package main + +import ( + "fmt" + "net" + "runtime" + + "github.com/vishvananda/netns" +) + +func main() { + // Lock the OS Thread so we don't accidentally switch namespaces + runtime.LockOSThread() + defer runtime.UnlockOSThread() + + // Save the current network namespace + origns, _ := netns.Get() + defer origns.Close() + + // Create a new network namespace + newns, _ := netns.New() + defer newns.Close() + + // Do something with the network namespace + ifaces, _ := net.Interfaces() + fmt.Printf("Interfaces: %v\n", ifaces) + + // Switch back to the original namespace + netns.Set(origns) +} + +``` diff --git a/vendor/github.com/vishvananda/netns/doc.go b/vendor/github.com/vishvananda/netns/doc.go new file mode 100644 index 000000000..cd4093a4d --- /dev/null +++ b/vendor/github.com/vishvananda/netns/doc.go @@ -0,0 +1,9 @@ +// Package netns allows ultra-simple network namespace handling. NsHandles +// can be retrieved and set. Note that the current namespace is thread +// local so actions that set and reset namespaces should use LockOSThread +// to make sure the namespace doesn't change due to a goroutine switch. +// It is best to close NsHandles when you are done with them. This can be +// accomplished via a `defer ns.Close()` on the handle. Changing namespaces +// requires elevated privileges, so in most cases this code needs to be run +// as root. +package netns diff --git a/vendor/github.com/vishvananda/netns/netns_linux.go b/vendor/github.com/vishvananda/netns/netns_linux.go new file mode 100644 index 000000000..2ed7c7e2f --- /dev/null +++ b/vendor/github.com/vishvananda/netns/netns_linux.go @@ -0,0 +1,283 @@ +package netns + +import ( + "fmt" + "os" + "path" + "path/filepath" + "strconv" + "strings" + + "golang.org/x/sys/unix" +) + +// Deprecated: use golang.org/x/sys/unix pkg instead. +const ( + CLONE_NEWUTS = unix.CLONE_NEWUTS /* New utsname group? */ + CLONE_NEWIPC = unix.CLONE_NEWIPC /* New ipcs */ + CLONE_NEWUSER = unix.CLONE_NEWUSER /* New user namespace */ + CLONE_NEWPID = unix.CLONE_NEWPID /* New pid namespace */ + CLONE_NEWNET = unix.CLONE_NEWNET /* New network namespace */ + CLONE_IO = unix.CLONE_IO /* Get io context */ +) + +const bindMountPath = "/run/netns" /* Bind mount path for named netns */ + +// Setns sets namespace using golang.org/x/sys/unix.Setns. +// +// Deprecated: Use golang.org/x/sys/unix.Setns instead. +func Setns(ns NsHandle, nstype int) (err error) { + return unix.Setns(int(ns), nstype) +} + +// Set sets the current network namespace to the namespace represented +// by NsHandle. +func Set(ns NsHandle) (err error) { + return unix.Setns(int(ns), unix.CLONE_NEWNET) +} + +// New creates a new network namespace, sets it as current and returns +// a handle to it. +func New() (ns NsHandle, err error) { + if err := unix.Unshare(unix.CLONE_NEWNET); err != nil { + return -1, err + } + return Get() +} + +// NewNamed creates a new named network namespace, sets it as current, +// and returns a handle to it +func NewNamed(name string) (NsHandle, error) { + if _, err := os.Stat(bindMountPath); os.IsNotExist(err) { + err = os.MkdirAll(bindMountPath, 0755) + if err != nil { + return None(), err + } + } + + newNs, err := New() + if err != nil { + return None(), err + } + + namedPath := path.Join(bindMountPath, name) + + f, err := os.OpenFile(namedPath, os.O_CREATE|os.O_EXCL, 0444) + if err != nil { + newNs.Close() + return None(), err + } + f.Close() + + nsPath := fmt.Sprintf("/proc/%d/task/%d/ns/net", os.Getpid(), unix.Gettid()) + err = unix.Mount(nsPath, namedPath, "bind", unix.MS_BIND, "") + if err != nil { + newNs.Close() + return None(), err + } + + return newNs, nil +} + +// DeleteNamed deletes a named network namespace +func DeleteNamed(name string) error { + namedPath := path.Join(bindMountPath, name) + + err := unix.Unmount(namedPath, unix.MNT_DETACH) + if err != nil { + return err + } + + return os.Remove(namedPath) +} + +// Get gets a handle to the current threads network namespace. +func Get() (NsHandle, error) { + return GetFromThread(os.Getpid(), unix.Gettid()) +} + +// GetFromPath gets a handle to a network namespace +// identified by the path +func GetFromPath(path string) (NsHandle, error) { + fd, err := unix.Open(path, unix.O_RDONLY|unix.O_CLOEXEC, 0) + if err != nil { + return -1, err + } + return NsHandle(fd), nil +} + +// GetFromName gets a handle to a named network namespace such as one +// created by `ip netns add`. +func GetFromName(name string) (NsHandle, error) { + return GetFromPath(filepath.Join(bindMountPath, name)) +} + +// GetFromPid gets a handle to the network namespace of a given pid. +func GetFromPid(pid int) (NsHandle, error) { + return GetFromPath(fmt.Sprintf("/proc/%d/ns/net", pid)) +} + +// GetFromThread gets a handle to the network namespace of a given pid and tid. +func GetFromThread(pid, tid int) (NsHandle, error) { + return GetFromPath(fmt.Sprintf("/proc/%d/task/%d/ns/net", pid, tid)) +} + +// GetFromDocker gets a handle to the network namespace of a docker container. +// Id is prefixed matched against the running docker containers, so a short +// identifier can be used as long as it isn't ambiguous. +func GetFromDocker(id string) (NsHandle, error) { + pid, err := getPidForContainer(id) + if err != nil { + return -1, err + } + return GetFromPid(pid) +} + +// borrowed from docker/utils/utils.go +func findCgroupMountpoint(cgroupType string) (int, string, error) { + output, err := os.ReadFile("/proc/mounts") + if err != nil { + return -1, "", err + } + + // /proc/mounts has 6 fields per line, one mount per line, e.g. + // cgroup /sys/fs/cgroup/devices cgroup rw,relatime,devices 0 0 + for _, line := range strings.Split(string(output), "\n") { + parts := strings.Split(line, " ") + if len(parts) == 6 { + switch parts[2] { + case "cgroup2": + return 2, parts[1], nil + case "cgroup": + for _, opt := range strings.Split(parts[3], ",") { + if opt == cgroupType { + return 1, parts[1], nil + } + } + } + } + } + + return -1, "", fmt.Errorf("cgroup mountpoint not found for %s", cgroupType) +} + +// Returns the relative path to the cgroup docker is running in. +// borrowed from docker/utils/utils.go +// modified to get the docker pid instead of using /proc/self +func getDockerCgroup(cgroupVer int, cgroupType string) (string, error) { + dockerpid, err := os.ReadFile("/var/run/docker.pid") + if err != nil { + return "", err + } + result := strings.Split(string(dockerpid), "\n") + if len(result) == 0 || len(result[0]) == 0 { + return "", fmt.Errorf("docker pid not found in /var/run/docker.pid") + } + pid, err := strconv.Atoi(result[0]) + if err != nil { + return "", err + } + output, err := os.ReadFile(fmt.Sprintf("/proc/%d/cgroup", pid)) + if err != nil { + return "", err + } + for _, line := range strings.Split(string(output), "\n") { + parts := strings.Split(line, ":") + // any type used by docker should work + if (cgroupVer == 1 && parts[1] == cgroupType) || + (cgroupVer == 2 && parts[1] == "") { + return parts[2], nil + } + } + return "", fmt.Errorf("cgroup '%s' not found in /proc/%d/cgroup", cgroupType, pid) +} + +// Returns the first pid in a container. +// borrowed from docker/utils/utils.go +// modified to only return the first pid +// modified to glob with id +// modified to search for newer docker containers +// modified to look for cgroups v2 +func getPidForContainer(id string) (int, error) { + pid := 0 + + // memory is chosen randomly, any cgroup used by docker works + cgroupType := "memory" + + cgroupVer, cgroupRoot, err := findCgroupMountpoint(cgroupType) + if err != nil { + return pid, err + } + + cgroupDocker, err := getDockerCgroup(cgroupVer, cgroupType) + if err != nil { + return pid, err + } + + id += "*" + + var pidFile string + if cgroupVer == 1 { + pidFile = "tasks" + } else if cgroupVer == 2 { + pidFile = "cgroup.procs" + } else { + return -1, fmt.Errorf("Invalid cgroup version '%d'", cgroupVer) + } + + attempts := []string{ + filepath.Join(cgroupRoot, cgroupDocker, id, pidFile), + // With more recent lxc versions use, cgroup will be in lxc/ + filepath.Join(cgroupRoot, cgroupDocker, "lxc", id, pidFile), + // With more recent docker, cgroup will be in docker/ + filepath.Join(cgroupRoot, cgroupDocker, "docker", id, pidFile), + // Even more recent docker versions under systemd use docker-.scope/ + filepath.Join(cgroupRoot, "system.slice", "docker-"+id+".scope", pidFile), + // Even more recent docker versions under cgroup/systemd/docker// + filepath.Join(cgroupRoot, "..", "systemd", "docker", id, pidFile), + // Kubernetes with docker and CNI is even more different. Works for BestEffort and Burstable QoS + filepath.Join(cgroupRoot, "..", "systemd", "kubepods", "*", "pod*", id, pidFile), + // Same as above but for Guaranteed QoS + filepath.Join(cgroupRoot, "..", "systemd", "kubepods", "pod*", id, pidFile), + // Another flavor of containers location in recent kubernetes 1.11+. Works for BestEffort and Burstable QoS + filepath.Join(cgroupRoot, cgroupDocker, "kubepods.slice", "*.slice", "*", "docker-"+id+".scope", pidFile), + // Same as above but for Guaranteed QoS + filepath.Join(cgroupRoot, cgroupDocker, "kubepods.slice", "*", "docker-"+id+".scope", pidFile), + // When runs inside of a container with recent kubernetes 1.11+. Works for BestEffort and Burstable QoS + filepath.Join(cgroupRoot, "kubepods.slice", "*.slice", "*", "docker-"+id+".scope", pidFile), + // Same as above but for Guaranteed QoS + filepath.Join(cgroupRoot, "kubepods.slice", "*", "docker-"+id+".scope", pidFile), + } + + var filename string + for _, attempt := range attempts { + filenames, _ := filepath.Glob(attempt) + if len(filenames) > 1 { + return pid, fmt.Errorf("Ambiguous id supplied: %v", filenames) + } else if len(filenames) == 1 { + filename = filenames[0] + break + } + } + + if filename == "" { + return pid, fmt.Errorf("Unable to find container: %v", id[:len(id)-1]) + } + + output, err := os.ReadFile(filename) + if err != nil { + return pid, err + } + + result := strings.Split(string(output), "\n") + if len(result) == 0 || len(result[0]) == 0 { + return pid, fmt.Errorf("No pid found for container") + } + + pid, err = strconv.Atoi(result[0]) + if err != nil { + return pid, fmt.Errorf("Invalid pid '%s': %s", result[0], err) + } + + return pid, nil +} diff --git a/vendor/github.com/vishvananda/netns/netns_others.go b/vendor/github.com/vishvananda/netns/netns_others.go new file mode 100644 index 000000000..048983774 --- /dev/null +++ b/vendor/github.com/vishvananda/netns/netns_others.go @@ -0,0 +1,60 @@ +//go:build !linux +// +build !linux + +package netns + +import ( + "errors" +) + +var ( + ErrNotImplemented = errors.New("not implemented") +) + +// Setns sets namespace using golang.org/x/sys/unix.Setns on Linux. It +// is not implemented on other platforms. +// +// Deprecated: Use golang.org/x/sys/unix.Setns instead. +func Setns(ns NsHandle, nstype int) (err error) { + return ErrNotImplemented +} + +func Set(ns NsHandle) (err error) { + return ErrNotImplemented +} + +func New() (ns NsHandle, err error) { + return -1, ErrNotImplemented +} + +func NewNamed(name string) (NsHandle, error) { + return -1, ErrNotImplemented +} + +func DeleteNamed(name string) error { + return ErrNotImplemented +} + +func Get() (NsHandle, error) { + return -1, ErrNotImplemented +} + +func GetFromPath(path string) (NsHandle, error) { + return -1, ErrNotImplemented +} + +func GetFromName(name string) (NsHandle, error) { + return -1, ErrNotImplemented +} + +func GetFromPid(pid int) (NsHandle, error) { + return -1, ErrNotImplemented +} + +func GetFromThread(pid, tid int) (NsHandle, error) { + return -1, ErrNotImplemented +} + +func GetFromDocker(id string) (NsHandle, error) { + return -1, ErrNotImplemented +} diff --git a/vendor/github.com/vishvananda/netns/nshandle_linux.go b/vendor/github.com/vishvananda/netns/nshandle_linux.go new file mode 100644 index 000000000..1baffb66a --- /dev/null +++ b/vendor/github.com/vishvananda/netns/nshandle_linux.go @@ -0,0 +1,73 @@ +package netns + +import ( + "fmt" + + "golang.org/x/sys/unix" +) + +// NsHandle is a handle to a network namespace. It can be cast directly +// to an int and used as a file descriptor. +type NsHandle int + +// Equal determines if two network handles refer to the same network +// namespace. This is done by comparing the device and inode that the +// file descriptors point to. +func (ns NsHandle) Equal(other NsHandle) bool { + if ns == other { + return true + } + var s1, s2 unix.Stat_t + if err := unix.Fstat(int(ns), &s1); err != nil { + return false + } + if err := unix.Fstat(int(other), &s2); err != nil { + return false + } + return (s1.Dev == s2.Dev) && (s1.Ino == s2.Ino) +} + +// String shows the file descriptor number and its dev and inode. +func (ns NsHandle) String() string { + if ns == -1 { + return "NS(none)" + } + var s unix.Stat_t + if err := unix.Fstat(int(ns), &s); err != nil { + return fmt.Sprintf("NS(%d: unknown)", ns) + } + return fmt.Sprintf("NS(%d: %d, %d)", ns, s.Dev, s.Ino) +} + +// UniqueId returns a string which uniquely identifies the namespace +// associated with the network handle. +func (ns NsHandle) UniqueId() string { + if ns == -1 { + return "NS(none)" + } + var s unix.Stat_t + if err := unix.Fstat(int(ns), &s); err != nil { + return "NS(unknown)" + } + return fmt.Sprintf("NS(%d:%d)", s.Dev, s.Ino) +} + +// IsOpen returns true if Close() has not been called. +func (ns NsHandle) IsOpen() bool { + return ns != -1 +} + +// Close closes the NsHandle and resets its file descriptor to -1. +// It is not safe to use an NsHandle after Close() is called. +func (ns *NsHandle) Close() error { + if err := unix.Close(int(*ns)); err != nil { + return err + } + *ns = -1 + return nil +} + +// None gets an empty (closed) NsHandle. +func None() NsHandle { + return NsHandle(-1) +} diff --git a/vendor/github.com/vishvananda/netns/nshandle_others.go b/vendor/github.com/vishvananda/netns/nshandle_others.go new file mode 100644 index 000000000..af727bc09 --- /dev/null +++ b/vendor/github.com/vishvananda/netns/nshandle_others.go @@ -0,0 +1,45 @@ +//go:build !linux +// +build !linux + +package netns + +// NsHandle is a handle to a network namespace. It can only be used on Linux, +// but provides stub methods on other platforms. +type NsHandle int + +// Equal determines if two network handles refer to the same network +// namespace. It is only implemented on Linux. +func (ns NsHandle) Equal(_ NsHandle) bool { + return false +} + +// String shows the file descriptor number and its dev and inode. +// It is only implemented on Linux, and returns "NS(none)" on other +// platforms. +func (ns NsHandle) String() string { + return "NS(none)" +} + +// UniqueId returns a string which uniquely identifies the namespace +// associated with the network handle. It is only implemented on Linux, +// and returns "NS(none)" on other platforms. +func (ns NsHandle) UniqueId() string { + return "NS(none)" +} + +// IsOpen returns true if Close() has not been called. It is only implemented +// on Linux and always returns false on other platforms. +func (ns NsHandle) IsOpen() bool { + return false +} + +// Close closes the NsHandle and resets its file descriptor to -1. +// It is only implemented on Linux. +func (ns *NsHandle) Close() error { + return nil +} + +// None gets an empty (closed) NsHandle. +func None() NsHandle { + return NsHandle(-1) +} diff --git a/vendor/modules.txt b/vendor/modules.txt index ca6a8cc62..dafb26eb6 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -1,8 +1,9 @@ # github.com/blang/semver v3.5.1+incompatible ## explicit github.com/blang/semver -# github.com/containernetworking/cni v1.1.2 -## explicit; go 1.14 +# github.com/containernetworking/cni v1.2.0-rc1 +## explicit; go 1.18 +github.com/containernetworking/cni/pkg/ns github.com/containernetworking/cni/pkg/skel github.com/containernetworking/cni/pkg/types github.com/containernetworking/cni/pkg/types/020 @@ -93,8 +94,8 @@ github.com/josharian/intern # github.com/json-iterator/go v1.1.12 ## explicit; go 1.12 github.com/json-iterator/go -# github.com/k8snetworkplumbingwg/network-attachment-definition-client v1.1.1-0.20210510153419-66a699ae3b05 -## explicit; go 1.12 +# github.com/k8snetworkplumbingwg/network-attachment-definition-client v1.7.0 +## explicit; go 1.21 github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1 github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/client/clientset/versioned @@ -172,6 +173,9 @@ github.com/robfig/cron/v3 # github.com/spf13/pflag v1.0.5 ## explicit; go 1.12 github.com/spf13/pflag +# github.com/vishvananda/netns v0.0.4 +## explicit; go 1.17 +github.com/vishvananda/netns # golang.org/x/exp v0.0.0-20231219180239-dc181d75b848 ## explicit; go 1.20 golang.org/x/exp/constraints