diff options
Diffstat (limited to 'vendor/github.com/containernetworking')
21 files changed, 0 insertions, 2703 deletions
diff --git a/vendor/github.com/containernetworking/cni/LICENSE b/vendor/github.com/containernetworking/cni/LICENSE deleted file mode 100644 index 8f71f43..0000000 --- a/vendor/github.com/containernetworking/cni/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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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/containernetworking/cni/pkg/skel/skel.go b/vendor/github.com/containernetworking/cni/pkg/skel/skel.go deleted file mode 100644 index af56b8a..0000000 --- a/vendor/github.com/containernetworking/cni/pkg/skel/skel.go +++ /dev/null @@ -1,307 +0,0 @@ -// Copyright 2014-2016 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 skel provides skeleton code for a CNI plugin. -// In particular, it implements argument parsing and validation. -package skel - -import ( - "bytes" - "encoding/json" - "fmt" - "io" - "io/ioutil" - "log" - "os" - "strings" - - "github.com/containernetworking/cni/pkg/types" - "github.com/containernetworking/cni/pkg/version" -) - -// 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 -} - -type dispatcher struct { - Getenv func(string) string - Stdin io.Reader - Stdout io.Writer - Stderr io.Writer - - ConfVersionDecoder version.ConfigDecoder - VersionReconciler version.Reconciler -} - -type reqForCmdEntry map[string]bool - -// internal only error to indicate lack of required environment variables -type missingEnvError struct { - msg string -} - -func (e missingEnvError) Error() string { - return e.msg -} - -func (t *dispatcher) getCmdArgsFromEnv() (string, *CmdArgs, error) { - var cmd, contID, netns, ifName, args, path string - - vars := []struct { - name string - val *string - reqForCmd reqForCmdEntry - }{ - { - "CNI_COMMAND", - &cmd, - reqForCmdEntry{ - "ADD": true, - "CHECK": true, - "DEL": true, - }, - }, - { - "CNI_CONTAINERID", - &contID, - reqForCmdEntry{ - "ADD": true, - "CHECK": true, - "DEL": true, - }, - }, - { - "CNI_NETNS", - &netns, - reqForCmdEntry{ - "ADD": true, - "CHECK": true, - "DEL": false, - }, - }, - { - "CNI_IFNAME", - &ifName, - reqForCmdEntry{ - "ADD": true, - "CHECK": true, - "DEL": true, - }, - }, - { - "CNI_ARGS", - &args, - reqForCmdEntry{ - "ADD": false, - "CHECK": false, - "DEL": false, - }, - }, - { - "CNI_PATH", - &path, - reqForCmdEntry{ - "ADD": true, - "CHECK": true, - "DEL": true, - }, - }, - } - - argsMissing := make([]string, 0) - for _, v := range vars { - *v.val = t.Getenv(v.name) - if *v.val == "" { - if v.reqForCmd[cmd] || v.name == "CNI_COMMAND" { - argsMissing = append(argsMissing, v.name) - } - } - } - - if len(argsMissing) > 0 { - joined := strings.Join(argsMissing, ",") - return "", nil, missingEnvError{fmt.Sprintf("required env variables [%s] missing", joined)} - } - - if cmd == "VERSION" { - t.Stdin = bytes.NewReader(nil) - } - - stdinData, err := ioutil.ReadAll(t.Stdin) - if err != nil { - return "", nil, fmt.Errorf("error reading from stdin: %v", err) - } - - cmdArgs := &CmdArgs{ - ContainerID: contID, - Netns: netns, - IfName: ifName, - Args: args, - Path: path, - StdinData: stdinData, - } - return cmd, cmdArgs, nil -} - -func createTypedError(f string, args ...interface{}) *types.Error { - return &types.Error{ - Code: 100, - Msg: fmt.Sprintf(f, args...), - } -} - -func (t *dispatcher) checkVersionAndCall(cmdArgs *CmdArgs, pluginVersionInfo version.PluginInfo, toCall func(*CmdArgs) error) error { - configVersion, err := t.ConfVersionDecoder.Decode(cmdArgs.StdinData) - if err != nil { - return err - } - verErr := t.VersionReconciler.Check(configVersion, pluginVersionInfo) - if verErr != nil { - return &types.Error{ - Code: types.ErrIncompatibleCNIVersion, - Msg: "incompatible CNI versions", - Details: verErr.Details(), - } - } - - return toCall(cmdArgs) -} - -func validateConfig(jsonBytes []byte) error { - var conf struct { - Name string `json:"name"` - } - if err := json.Unmarshal(jsonBytes, &conf); err != nil { - return fmt.Errorf("error reading network config: %s", err) - } - if conf.Name == "" { - return fmt.Errorf("missing network name") - } - return nil -} - -func (t *dispatcher) pluginMain(cmdAdd, cmdCheck, cmdDel func(_ *CmdArgs) error, 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 - if _, ok := err.(missingEnvError); ok && t.Getenv("CNI_COMMAND") == "" && about != "" { - fmt.Fprintln(t.Stderr, about) - return nil - } - return createTypedError(err.Error()) - } - - if cmd != "VERSION" { - err = validateConfig(cmdArgs.StdinData) - if err != nil { - return createTypedError(err.Error()) - } - } - - switch cmd { - case "ADD": - err = t.checkVersionAndCall(cmdArgs, versionInfo, cmdAdd) - case "CHECK": - configVersion, err := t.ConfVersionDecoder.Decode(cmdArgs.StdinData) - if err != nil { - return createTypedError(err.Error()) - } - if gtet, err := version.GreaterThanOrEqualTo(configVersion, "0.4.0"); err != nil { - return createTypedError(err.Error()) - } else if !gtet { - return &types.Error{ - Code: types.ErrIncompatibleCNIVersion, - Msg: "config version does not allow CHECK", - } - } - for _, pluginVersion := range versionInfo.SupportedVersions() { - gtet, err := version.GreaterThanOrEqualTo(pluginVersion, configVersion) - if err != nil { - return createTypedError(err.Error()) - } else if gtet { - if err := t.checkVersionAndCall(cmdArgs, versionInfo, cmdCheck); err != nil { - return createTypedError(err.Error()) - } - return nil - } - } - return &types.Error{ - Code: types.ErrIncompatibleCNIVersion, - Msg: "plugin version does not allow CHECK", - } - case "DEL": - err = t.checkVersionAndCall(cmdArgs, versionInfo, cmdDel) - case "VERSION": - err = versionInfo.Encode(t.Stdout) - default: - return createTypedError("unknown CNI_COMMAND: %v", cmd) - } - - if err != nil { - if e, ok := err.(*types.Error); ok { - // don't wrap Error in Error - return e - } - return createTypedError(err.Error()) - } - return nil -} - -// PluginMainWithError is the core "main" for a plugin. It accepts -// callback functions for add, check, and del CNI commands 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 PluginMain() instead. -func PluginMainWithError(cmdAdd, cmdCheck, cmdDel func(_ *CmdArgs) error, 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 is the core "main" for a plugin which includes automatic error handling. -// -// 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 <foo> v<version>" -// -// When an error occurs in either cmdAdd, cmdCheck, or cmdDel, PluginMain will print the error -// as JSON to stdout and call os.Exit(1). -// -// To have more control over error handling, use PluginMainWithError() 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 { - log.Print("Error writing error JSON to stdout: ", err) - } - os.Exit(1) - } -} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/020/types.go b/vendor/github.com/containernetworking/cni/pkg/types/020/types.go deleted file mode 100644 index 5325616..0000000 --- a/vendor/github.com/containernetworking/cni/pkg/types/020/types.go +++ /dev/null @@ -1,140 +0,0 @@ -// Copyright 2016 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 types020 - -import ( - "encoding/json" - "fmt" - "io" - "net" - "os" - - "github.com/containernetworking/cni/pkg/types" -) - -const ImplementedSpecVersion string = "0.2.0" - -var SupportedVersions = []string{"", "0.1.0", ImplementedSpecVersion} - -// Compatibility types for CNI version 0.1.0 and 0.2.0 - -func NewResult(data []byte) (types.Result, error) { - result := &Result{} - if err := json.Unmarshal(data, result); err != nil { - return nil, err - } - return result, nil -} - -func GetResult(r types.Result) (*Result, error) { - // We expect version 0.1.0/0.2.0 results - result020, err := r.GetAsVersion(ImplementedSpecVersion) - if err != nil { - return nil, err - } - result, ok := result020.(*Result) - if !ok { - return nil, fmt.Errorf("failed to convert result") - } - return result, nil -} - -// Result is what gets returned from the plugin (via stdout) to the caller -type Result struct { - CNIVersion string `json:"cniVersion,omitempty"` - IP4 *IPConfig `json:"ip4,omitempty"` - IP6 *IPConfig `json:"ip6,omitempty"` - DNS types.DNS `json:"dns,omitempty"` -} - -func (r *Result) Version() string { - return ImplementedSpecVersion -} - -func (r *Result) GetAsVersion(version string) (types.Result, error) { - for _, supportedVersion := range SupportedVersions { - if version == supportedVersion { - r.CNIVersion = version - return r, nil - } - } - return nil, fmt.Errorf("cannot convert version %q to %s", SupportedVersions, version) -} - -func (r *Result) Print() error { - return r.PrintTo(os.Stdout) -} - -func (r *Result) PrintTo(writer io.Writer) error { - data, err := json.MarshalIndent(r, "", " ") - if err != nil { - return err - } - _, err = writer.Write(data) - return err -} - -// String returns a formatted string in the form of "[IP4: $1,][ IP6: $2,] DNS: $3" where -// $1 represents the receiver's IPv4, $2 represents the receiver's IPv6 and $3 the -// receiver's DNS. If $1 or $2 are nil, they won't be present in the returned string. -func (r *Result) String() string { - var str string - if r.IP4 != nil { - str = fmt.Sprintf("IP4:%+v, ", *r.IP4) - } - if r.IP6 != nil { - str += fmt.Sprintf("IP6:%+v, ", *r.IP6) - } - return fmt.Sprintf("%sDNS:%+v", str, r.DNS) -} - -// IPConfig contains values necessary to configure an interface -type IPConfig struct { - IP net.IPNet - Gateway net.IP - Routes []types.Route -} - -// net.IPNet is not JSON (un)marshallable so this duality is needed -// for our custom IPNet type - -// JSON (un)marshallable types -type ipConfig struct { - IP types.IPNet `json:"ip"` - Gateway net.IP `json:"gateway,omitempty"` - Routes []types.Route `json:"routes,omitempty"` -} - -func (c *IPConfig) MarshalJSON() ([]byte, error) { - ipc := ipConfig{ - IP: types.IPNet(c.IP), - Gateway: c.Gateway, - Routes: c.Routes, - } - - return json.Marshal(ipc) -} - -func (c *IPConfig) UnmarshalJSON(data []byte) error { - ipc := ipConfig{} - if err := json.Unmarshal(data, &ipc); err != nil { - return err - } - - c.IP = net.IPNet(ipc.IP) - c.Gateway = ipc.Gateway - c.Routes = ipc.Routes - return nil -} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/args.go b/vendor/github.com/containernetworking/cni/pkg/types/args.go deleted file mode 100644 index bd8640f..0000000 --- a/vendor/github.com/containernetworking/cni/pkg/types/args.go +++ /dev/null @@ -1,112 +0,0 @@ -// Copyright 2015 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 types - -import ( - "encoding" - "fmt" - "reflect" - "strings" -) - -// UnmarshallableBool typedef for builtin bool -// because builtin type's methods can't be declared -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" -func (b *UnmarshallableBool) UnmarshalText(data []byte) error { - s := strings.ToLower(string(data)) - switch s { - case "1", "true": - *b = true - case "0", "false": - *b = false - default: - return fmt.Errorf("Boolean unmarshal error: invalid input %s", s) - } - return nil -} - -// UnmarshallableString typedef for builtin string -type UnmarshallableString string - -// UnmarshalText implements the encoding.TextUnmarshaler interface. -// Returns the string -func (s *UnmarshallableString) UnmarshalText(data []byte) error { - *s = UnmarshallableString(data) - return nil -} - -// CommonArgs contains the IgnoreUnknown argument -// and must be embedded by all Arg structs -type CommonArgs struct { - IgnoreUnknown UnmarshallableBool `json:"ignoreunknown,omitempty"` -} - -// GetKeyField is a helper function to receive Values -// Values that represent a pointer to a struct -func GetKeyField(keyString string, v reflect.Value) reflect.Value { - return v.Elem().FieldByName(keyString) -} - -// UnmarshalableArgsError is used to indicate error unmarshalling args -// from the args-string in the form "K=V;K2=V2;..." -type UnmarshalableArgsError struct { - error -} - -// LoadArgs parses args from a string in the form "K=V;K2=V2;..." -func LoadArgs(args string, container interface{}) error { - if args == "" { - return nil - } - - containerValue := reflect.ValueOf(container) - - pairs := strings.Split(args, ";") - unknownArgs := []string{} - for _, pair := range pairs { - kv := strings.Split(pair, "=") - if len(kv) != 2 { - return fmt.Errorf("ARGS: invalid pair %q", pair) - } - keyString := kv[0] - valueString := kv[1] - keyField := GetKeyField(keyString, containerValue) - if !keyField.IsValid() { - unknownArgs = append(unknownArgs, pair) - continue - } - keyFieldIface := keyField.Addr().Interface() - u, ok := keyFieldIface.(encoding.TextUnmarshaler) - if !ok { - return UnmarshalableArgsError{fmt.Errorf( - "ARGS: cannot unmarshal into field '%s' - type '%s' does not implement encoding.TextUnmarshaler", - keyString, reflect.TypeOf(keyFieldIface))} - } - err := u.UnmarshalText([]byte(valueString)) - if err != nil { - return fmt.Errorf("ARGS: error parsing value of pair %q: %v)", pair, err) - } - } - - isIgnoreUnknown := GetKeyField("IgnoreUnknown", containerValue).Bool() - if len(unknownArgs) > 0 && !isIgnoreUnknown { - return fmt.Errorf("ARGS: unknown args %q", unknownArgs) - } - return nil -} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/current/types.go b/vendor/github.com/containernetworking/cni/pkg/types/current/types.go deleted file mode 100644 index 7267a2e..0000000 --- a/vendor/github.com/containernetworking/cni/pkg/types/current/types.go +++ /dev/null @@ -1,293 +0,0 @@ -// Copyright 2016 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 current - -import ( - "encoding/json" - "fmt" - "io" - "net" - "os" - - "github.com/containernetworking/cni/pkg/types" - "github.com/containernetworking/cni/pkg/types/020" -) - -const ImplementedSpecVersion string = "0.4.0" - -var SupportedVersions = []string{"0.3.0", "0.3.1", ImplementedSpecVersion} - -func NewResult(data []byte) (types.Result, error) { - result := &Result{} - if err := json.Unmarshal(data, result); err != nil { - return nil, err - } - return result, nil -} - -func GetResult(r types.Result) (*Result, error) { - resultCurrent, err := r.GetAsVersion(ImplementedSpecVersion) - if err != nil { - return nil, err - } - result, ok := resultCurrent.(*Result) - if !ok { - return nil, fmt.Errorf("failed to convert result") - } - return result, nil -} - -var resultConverters = []struct { - versions []string - convert func(types.Result) (*Result, error) -}{ - {types020.SupportedVersions, convertFrom020}, - {SupportedVersions, convertFrom030}, -} - -func convertFrom020(result types.Result) (*Result, error) { - oldResult, err := types020.GetResult(result) - if err != nil { - return nil, err - } - - newResult := &Result{ - CNIVersion: ImplementedSpecVersion, - DNS: oldResult.DNS, - Routes: []*types.Route{}, - } - - if oldResult.IP4 != nil { - newResult.IPs = append(newResult.IPs, &IPConfig{ - Version: "4", - Address: oldResult.IP4.IP, - Gateway: oldResult.IP4.Gateway, - }) - for _, route := range oldResult.IP4.Routes { - newResult.Routes = append(newResult.Routes, &types.Route{ - Dst: route.Dst, - GW: route.GW, - }) - } - } - - if oldResult.IP6 != nil { - newResult.IPs = append(newResult.IPs, &IPConfig{ - Version: "6", - Address: oldResult.IP6.IP, - Gateway: oldResult.IP6.Gateway, - }) - for _, route := range oldResult.IP6.Routes { - newResult.Routes = append(newResult.Routes, &types.Route{ - Dst: route.Dst, - GW: route.GW, - }) - } - } - - return newResult, nil -} - -func convertFrom030(result types.Result) (*Result, error) { - newResult, ok := result.(*Result) - if !ok { - return nil, fmt.Errorf("failed to convert result") - } - newResult.CNIVersion = ImplementedSpecVersion - return newResult, nil -} - -func NewResultFromResult(result types.Result) (*Result, error) { - version := result.Version() - for _, converter := range resultConverters { - for _, supportedVersion := range converter.versions { - if version == supportedVersion { - return converter.convert(result) - } - } - } - return nil, fmt.Errorf("unsupported CNI result22 version %q", version) -} - -// Result is what gets returned from the plugin (via stdout) to the caller -type Result struct { - CNIVersion string `json:"cniVersion,omitempty"` - Interfaces []*Interface `json:"interfaces,omitempty"` - IPs []*IPConfig `json:"ips,omitempty"` - Routes []*types.Route `json:"routes,omitempty"` - DNS types.DNS `json:"dns,omitempty"` -} - -// Convert to the older 0.2.0 CNI spec Result type -func (r *Result) convertTo020() (*types020.Result, error) { - oldResult := &types020.Result{ - CNIVersion: types020.ImplementedSpecVersion, - DNS: r.DNS, - } - - for _, ip := range r.IPs { - // Only convert the first IP address of each version as 0.2.0 - // and earlier cannot handle multiple IP addresses - if ip.Version == "4" && oldResult.IP4 == nil { - oldResult.IP4 = &types020.IPConfig{ - IP: ip.Address, - Gateway: ip.Gateway, - } - } else if ip.Version == "6" && oldResult.IP6 == nil { - oldResult.IP6 = &types020.IPConfig{ - IP: ip.Address, - Gateway: ip.Gateway, - } - } - - if oldResult.IP4 != nil && oldResult.IP6 != nil { - break - } - } - - for _, route := range r.Routes { - is4 := route.Dst.IP.To4() != nil - if is4 && oldResult.IP4 != nil { - oldResult.IP4.Routes = append(oldResult.IP4.Routes, types.Route{ - Dst: route.Dst, - GW: route.GW, - }) - } else if !is4 && oldResult.IP6 != nil { - oldResult.IP6.Routes = append(oldResult.IP6.Routes, types.Route{ - Dst: route.Dst, - GW: route.GW, - }) - } - } - - if oldResult.IP4 == nil && oldResult.IP6 == nil { - return nil, fmt.Errorf("cannot convert: no valid IP addresses") - } - - return oldResult, nil -} - -func (r *Result) Version() string { - return ImplementedSpecVersion -} - -func (r *Result) GetAsVersion(version string) (types.Result, error) { - switch version { - case "0.3.0", "0.3.1", ImplementedSpecVersion: - r.CNIVersion = version - return r, nil - case types020.SupportedVersions[0], types020.SupportedVersions[1], types020.SupportedVersions[2]: - return r.convertTo020() - } - return nil, fmt.Errorf("cannot convert version 0.3.x to %q", version) -} - -func (r *Result) Print() error { - return r.PrintTo(os.Stdout) -} - -func (r *Result) PrintTo(writer io.Writer) error { - data, err := json.MarshalIndent(r, "", " ") - if err != nil { - return err - } - _, err = writer.Write(data) - return err -} - -// String returns a formatted string in the form of "[Interfaces: $1,][ IP: $2,] DNS: $3" where -// $1 represents the receiver's Interfaces, $2 represents the receiver's IP addresses and $3 the -// receiver's DNS. If $1 or $2 are nil, they won't be present in the returned string. -func (r *Result) String() string { - var str string - if len(r.Interfaces) > 0 { - str += fmt.Sprintf("Interfaces:%+v, ", r.Interfaces) - } - if len(r.IPs) > 0 { - str += fmt.Sprintf("IP:%+v, ", r.IPs) - } - if len(r.Routes) > 0 { - str += fmt.Sprintf("Routes:%+v, ", r.Routes) - } - return fmt.Sprintf("%sDNS:%+v", str, r.DNS) -} - -// Convert this old version result to the current CNI version result -func (r *Result) Convert() (*Result, error) { - return r, nil -} - -// Interface contains values about the created interfaces -type Interface struct { - Name string `json:"name"` - Mac string `json:"mac,omitempty"` - Sandbox string `json:"sandbox,omitempty"` -} - -func (i *Interface) String() string { - return fmt.Sprintf("%+v", *i) -} - -// Int returns a pointer to the int value passed in. Used to -// set the IPConfig.Interface field. -func Int(v int) *int { - return &v -} - -// IPConfig contains values necessary to configure an IP address on an interface -type IPConfig struct { - // IP version, either "4" or "6" - Version string - // Index into Result structs Interfaces list - Interface *int - Address net.IPNet - Gateway net.IP -} - -func (i *IPConfig) String() string { - return fmt.Sprintf("%+v", *i) -} - -// JSON (un)marshallable types -type ipConfig struct { - Version string `json:"version"` - Interface *int `json:"interface,omitempty"` - Address types.IPNet `json:"address"` - Gateway net.IP `json:"gateway,omitempty"` -} - -func (c *IPConfig) MarshalJSON() ([]byte, error) { - ipc := ipConfig{ - Version: c.Version, - Interface: c.Interface, - Address: types.IPNet(c.Address), - Gateway: c.Gateway, - } - - return json.Marshal(ipc) -} - -func (c *IPConfig) UnmarshalJSON(data []byte) error { - ipc := ipConfig{} - if err := json.Unmarshal(data, &ipc); err != nil { - return err - } - - c.Version = ipc.Version - c.Interface = ipc.Interface - c.Address = net.IPNet(ipc.Address) - c.Gateway = ipc.Gateway - return nil -} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/types.go b/vendor/github.com/containernetworking/cni/pkg/types/types.go deleted file mode 100644 index d0d1100..0000000 --- a/vendor/github.com/containernetworking/cni/pkg/types/types.go +++ /dev/null @@ -1,199 +0,0 @@ -// Copyright 2015 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 types - -import ( - "encoding/json" - "errors" - "fmt" - "io" - "net" - "os" -) - -// like net.IPNet but adds JSON marshalling and unmarshalling -type IPNet net.IPNet - -// ParseCIDR takes a string like "10.2.3.1/24" and -// return IPNet with "10.2.3.1" and /24 mask -func ParseCIDR(s string) (*net.IPNet, error) { - ip, ipn, err := net.ParseCIDR(s) - if err != nil { - return nil, err - } - - ipn.IP = ip - return ipn, nil -} - -func (n IPNet) MarshalJSON() ([]byte, error) { - return json.Marshal((*net.IPNet)(&n).String()) -} - -func (n *IPNet) UnmarshalJSON(data []byte) error { - var s string - if err := json.Unmarshal(data, &s); err != nil { - return err - } - - tmp, err := ParseCIDR(s) - if err != nil { - return err - } - - *n = IPNet(*tmp) - return nil -} - -// NetConf describes a network. -type NetConf struct { - CNIVersion string `json:"cniVersion,omitempty"` - - Name string `json:"name,omitempty"` - Type string `json:"type,omitempty"` - Capabilities map[string]bool `json:"capabilities,omitempty"` - IPAM IPAM `json:"ipam,omitempty"` - DNS DNS `json:"dns"` - - RawPrevResult map[string]interface{} `json:"prevResult,omitempty"` - PrevResult Result `json:"-"` -} - -type IPAM struct { - Type string `json:"type,omitempty"` -} - -// NetConfList describes an ordered list of networks. -type NetConfList struct { - CNIVersion string `json:"cniVersion,omitempty"` - - Name string `json:"name,omitempty"` - DisableCheck bool `json:"disableCheck,omitempty"` - Plugins []*NetConf `json:"plugins,omitempty"` -} - -type ResultFactoryFunc func([]byte) (Result, error) - -// Result is an interface that provides the result of plugin execution -type Result interface { - // The highest CNI specification result version the result supports - // without having to convert - Version() string - - // Returns the result converted into the requested CNI specification - // result version, or an error if conversion failed - GetAsVersion(version string) (Result, error) - - // Prints the result in JSON format to stdout - Print() error - - // Prints the result in JSON format to provided writer - PrintTo(writer io.Writer) error - - // Returns a JSON string representation of the result - String() string -} - -func PrintResult(result Result, version string) error { - newResult, err := result.GetAsVersion(version) - if err != nil { - return err - } - return newResult.Print() -} - -// DNS contains values interesting for DNS resolvers -type DNS struct { - Nameservers []string `json:"nameservers,omitempty"` - Domain string `json:"domain,omitempty"` - Search []string `json:"search,omitempty"` - Options []string `json:"options,omitempty"` -} - -type Route struct { - Dst net.IPNet - GW net.IP -} - -func (r *Route) String() string { - return fmt.Sprintf("%+v", *r) -} - -// Well known error codes -// see https://github.com/containernetworking/cni/blob/master/SPEC.md#well-known-error-codes -const ( - ErrUnknown uint = iota // 0 - ErrIncompatibleCNIVersion // 1 - ErrUnsupportedField // 2 -) - -type Error struct { - Code uint `json:"code"` - Msg string `json:"msg"` - Details string `json:"details,omitempty"` -} - -func (e *Error) Error() string { - details := "" - if e.Details != "" { - details = fmt.Sprintf("; %v", e.Details) - } - return fmt.Sprintf("%v%v", e.Msg, details) -} - -func (e *Error) Print() error { - return prettyPrint(e) -} - -// net.IPNet is not JSON (un)marshallable so this duality is needed -// for our custom IPNet type - -// JSON (un)marshallable types -type route struct { - Dst IPNet `json:"dst"` - GW net.IP `json:"gw,omitempty"` -} - -func (r *Route) UnmarshalJSON(data []byte) error { - rt := route{} - if err := json.Unmarshal(data, &rt); err != nil { - return err - } - - r.Dst = net.IPNet(rt.Dst) - r.GW = rt.GW - return nil -} - -func (r Route) MarshalJSON() ([]byte, error) { - rt := route{ - Dst: IPNet(r.Dst), - GW: r.GW, - } - - return json.Marshal(rt) -} - -func prettyPrint(obj interface{}) error { - data, err := json.MarshalIndent(obj, "", " ") - if err != nil { - return err - } - _, err = os.Stdout.Write(data) - return err -} - -// NotImplementedError is used to indicate that a method is not implemented for the given platform -var NotImplementedError = errors.New("Not Implemented") diff --git a/vendor/github.com/containernetworking/cni/pkg/version/conf.go b/vendor/github.com/containernetworking/cni/pkg/version/conf.go deleted file mode 100644 index 3cca58b..0000000 --- a/vendor/github.com/containernetworking/cni/pkg/version/conf.go +++ /dev/null @@ -1,37 +0,0 @@ -// Copyright 2016 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 version - -import ( - "encoding/json" - "fmt" -) - -// ConfigDecoder can decode the CNI version available in network config data -type ConfigDecoder struct{} - -func (*ConfigDecoder) Decode(jsonBytes []byte) (string, error) { - var conf struct { - CNIVersion string `json:"cniVersion"` - } - err := json.Unmarshal(jsonBytes, &conf) - if err != nil { - return "", fmt.Errorf("decoding version from network config: %s", err) - } - if conf.CNIVersion == "" { - return "0.1.0", nil - } - return conf.CNIVersion, nil -} diff --git a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go deleted file mode 100644 index 1df4272..0000000 --- a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go +++ /dev/null @@ -1,144 +0,0 @@ -// Copyright 2016 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 version - -import ( - "encoding/json" - "fmt" - "io" - "strconv" - "strings" -) - -// PluginInfo reports information about CNI versioning -type PluginInfo interface { - // SupportedVersions returns one or more CNI spec versions that the plugin - // supports. If input is provided in one of these versions, then the plugin - // promises to use the same CNI version in its response - SupportedVersions() []string - - // Encode writes this CNI version information as JSON to the given Writer - Encode(io.Writer) error -} - -type pluginInfo struct { - CNIVersion_ string `json:"cniVersion"` - SupportedVersions_ []string `json:"supportedVersions,omitempty"` -} - -// pluginInfo implements the PluginInfo interface -var _ PluginInfo = &pluginInfo{} - -func (p *pluginInfo) Encode(w io.Writer) error { - return json.NewEncoder(w).Encode(p) -} - -func (p *pluginInfo) SupportedVersions() []string { - return p.SupportedVersions_ -} - -// PluginSupports returns a new PluginInfo that will report the given versions -// as supported -func PluginSupports(supportedVersions ...string) PluginInfo { - if len(supportedVersions) < 1 { - panic("programmer error: you must support at least one version") - } - return &pluginInfo{ - CNIVersion_: Current(), - SupportedVersions_: supportedVersions, - } -} - -// PluginDecoder can decode the response returned by a plugin's VERSION command -type PluginDecoder struct{} - -func (*PluginDecoder) Decode(jsonBytes []byte) (PluginInfo, error) { - var info pluginInfo - err := json.Unmarshal(jsonBytes, &info) - if err != nil { - return nil, fmt.Errorf("decoding version info: %s", err) - } - if info.CNIVersion_ == "" { - return nil, fmt.Errorf("decoding version info: missing field cniVersion") - } - if len(info.SupportedVersions_) == 0 { - if info.CNIVersion_ == "0.2.0" { - return PluginSupports("0.1.0", "0.2.0"), nil - } - return nil, fmt.Errorf("decoding version info: missing field supportedVersions") - } - return &info, nil -} - -// ParseVersion parses a version string like "3.0.1" or "0.4.5" into major, -// minor, and micro numbers or returns an error -func ParseVersion(version string) (int, int, int, error) { - var major, minor, micro int - if version == "" { - return -1, -1, -1, fmt.Errorf("invalid version %q: the version is empty", version) - } - - parts := strings.Split(version, ".") - if len(parts) >= 4 { - return -1, -1, -1, fmt.Errorf("invalid version %q: too many parts", version) - } - - major, err := strconv.Atoi(parts[0]) - if err != nil { - return -1, -1, -1, fmt.Errorf("failed to convert major version part %q: %v", parts[0], err) - } - - if len(parts) >= 2 { - minor, err = strconv.Atoi(parts[1]) - if err != nil { - return -1, -1, -1, fmt.Errorf("failed to convert minor version part %q: %v", parts[1], err) - } - } - - if len(parts) >= 3 { - micro, err = strconv.Atoi(parts[2]) - if err != nil { - return -1, -1, -1, fmt.Errorf("failed to convert micro version part %q: %v", parts[2], err) - } - } - - return major, minor, micro, nil -} - -// GreaterThanOrEqualTo takes two string versions, parses them into major/minor/micro -// numbers, and compares them to determine whether the first version is greater -// than or equal to the second -func GreaterThanOrEqualTo(version, otherVersion string) (bool, error) { - firstMajor, firstMinor, firstMicro, err := ParseVersion(version) - if err != nil { - return false, err - } - - secondMajor, secondMinor, secondMicro, err := ParseVersion(otherVersion) - if err != nil { - return false, err - } - - if firstMajor > secondMajor { - return true, nil - } else if firstMajor == secondMajor { - if firstMinor > secondMinor { - return true, nil - } else if firstMinor == secondMinor && firstMicro >= secondMicro { - return true, nil - } - } - return false, nil -} diff --git a/vendor/github.com/containernetworking/cni/pkg/version/reconcile.go b/vendor/github.com/containernetworking/cni/pkg/version/reconcile.go deleted file mode 100644 index 25c3810..0000000 --- a/vendor/github.com/containernetworking/cni/pkg/version/reconcile.go +++ /dev/null @@ -1,49 +0,0 @@ -// Copyright 2016 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 version - -import "fmt" - -type ErrorIncompatible struct { - Config string - Supported []string -} - -func (e *ErrorIncompatible) Details() string { - return fmt.Sprintf("config is %q, plugin supports %q", e.Config, e.Supported) -} - -func (e *ErrorIncompatible) Error() string { - return fmt.Sprintf("incompatible CNI versions: %s", e.Details()) -} - -type Reconciler struct{} - -func (r *Reconciler) Check(configVersion string, pluginInfo PluginInfo) *ErrorIncompatible { - return r.CheckRaw(configVersion, pluginInfo.SupportedVersions()) -} - -func (*Reconciler) CheckRaw(configVersion string, supportedVersions []string) *ErrorIncompatible { - for _, supportedVersion := range supportedVersions { - if configVersion == supportedVersion { - return nil - } - } - - return &ErrorIncompatible{ - Config: configVersion, - Supported: supportedVersions, - } -} diff --git a/vendor/github.com/containernetworking/cni/pkg/version/version.go b/vendor/github.com/containernetworking/cni/pkg/version/version.go deleted file mode 100644 index 8f3508e..0000000 --- a/vendor/github.com/containernetworking/cni/pkg/version/version.go +++ /dev/null @@ -1,83 +0,0 @@ -// Copyright 2016 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 version - -import ( - "encoding/json" - "fmt" - - "github.com/containernetworking/cni/pkg/types" - "github.com/containernetworking/cni/pkg/types/020" - "github.com/containernetworking/cni/pkg/types/current" -) - -// Current reports the version of the CNI spec implemented by this library -func Current() string { - return "0.4.0" -} - -// Legacy PluginInfo describes a plugin that is backwards compatible with the -// CNI spec version 0.1.0. In particular, a runtime compiled against the 0.1.0 -// library ought to work correctly with a plugin that reports support for -// Legacy versions. -// -// 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") - -var resultFactories = []struct { - supportedVersions []string - newResult types.ResultFactoryFunc -}{ - {current.SupportedVersions, current.NewResult}, - {types020.SupportedVersions, types020.NewResult}, -} - -// Finds a Result object matching the requested version (if any) and asks -// that object to parse the plugin result, returning an error if parsing failed. -func NewResult(version string, resultBytes []byte) (types.Result, error) { - reconciler := &Reconciler{} - for _, resultFactory := range resultFactories { - err := reconciler.CheckRaw(version, resultFactory.supportedVersions) - if err == nil { - // Result supports this version - return resultFactory.newResult(resultBytes) - } - } - - return nil, fmt.Errorf("unsupported CNI result version %q", version) -} - -// ParsePrevResult parses a prevResult in a NetConf structure and sets -// the NetConf's PrevResult member to the parsed Result object. -func ParsePrevResult(conf *types.NetConf) error { - if conf.RawPrevResult == nil { - return nil - } - - resultBytes, err := json.Marshal(conf.RawPrevResult) - if err != nil { - return fmt.Errorf("could not serialize prevResult: %v", err) - } - - conf.RawPrevResult = nil - conf.PrevResult, err = NewResult(conf.CNIVersion, resultBytes) - if err != nil { - return fmt.Errorf("could not parse prevResult: %v", err) - } - - return nil -} diff --git a/vendor/github.com/containernetworking/plugins/LICENSE b/vendor/github.com/containernetworking/plugins/LICENSE deleted file mode 100644 index 8dada3e..0000000 --- a/vendor/github.com/containernetworking/plugins/LICENSE +++ /dev/null @@ -1,201 +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. For the purposes of this definition, "submitted" - means any form of electronic, verbal, or written communication sent - to the Licensor or its representatives, including but not limited to - communication on electronic mailing lists, source code control systems, - and issue tracking systems that are managed by, or on behalf of, the - Licensor for the purpose of discussing and improving the Work, but - excluding communication that is conspicuously marked or otherwise - designated in writing by the copyright owner as "Not a Contribution." - - "Contributor" shall mean Licensor and any individual or Legal Entity - on behalf of whom a Contribution has been received by Licensor and - subsequently incorporated within the Work. - - 2. Grant of Copyright License. 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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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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/containernetworking/plugins/pkg/ns/README.md b/vendor/github.com/containernetworking/plugins/pkg/ns/README.md deleted file mode 100644 index 1e265c7..0000000 --- a/vendor/github.com/containernetworking/plugins/pkg/ns/README.md +++ /dev/null @@ -1,41 +0,0 @@ -### Namespaces, Threads, and Go -On Linux each OS thread can have a different network namespace. Go's thread scheduling model switches goroutines between OS threads based on OS thread load and whether the goroutine would block other goroutines. This can result in a goroutine switching network namespaces without notice and lead to errors in your code. - -### Namespace Switching -Switching namespaces with the `ns.Set()` method is not recommended without additional strategies to prevent unexpected namespace changes when your goroutines switch OS threads. - -Go provides the `runtime.LockOSThread()` function to ensure a specific goroutine executes on its current OS thread and prevents any other goroutine from running in that thread until the locked one exits. Careful usage of `LockOSThread()` and goroutines can provide good control over which network namespace a given goroutine executes in. - -For example, you cannot rely on the `ns.Set()` namespace being the current namespace after the `Set()` call unless you do two things. First, the goroutine calling `Set()` must have previously called `LockOSThread()`. Second, you must ensure `runtime.UnlockOSThread()` is not called somewhere in-between. You also cannot rely on the initial network namespace remaining the current network namespace if any other code in your program switches namespaces, unless you have already called `LockOSThread()` in that goroutine. Note that `LockOSThread()` prevents the Go scheduler from optimally scheduling goroutines for best performance, so `LockOSThread()` should only be used in small, isolated goroutines that release the lock quickly. - -### Do() The Recommended Thing -The `ns.Do()` method provides **partial** control over network namespaces for you by implementing these strategies. All code dependent on a particular network namespace (including the root namespace) should be wrapped in the `ns.Do()` method to ensure the correct namespace is selected for the duration of your code. For example: - -```go -err = targetNs.Do(func(hostNs ns.NetNS) error { - dummy := &netlink.Dummy{ - LinkAttrs: netlink.LinkAttrs{ - Name: "dummy0", - }, - } - return netlink.LinkAdd(dummy) -}) -``` - -Note this requirement to wrap every network call is very onerous - any libraries you call might call out to network services such as DNS, and all such calls need to be protected after you call `ns.Do()`. All goroutines spawned from within the `ns.Do` will not inherit the new namespace. The CNI plugins all exit very soon after calling `ns.Do()` which helps to minimize the problem. - -When a new thread is spawned in Linux, it inherits the namespace of its parent. In versions of go **prior to 1.10**, if the runtime spawns a new OS thread, it picks the parent randomly. If the chosen parent thread has been moved to a new namespace (even temporarily), the new OS thread will be permanently "stuck in the wrong namespace", and goroutines will non-deterministically switch namespaces as they are rescheduled. - -In short, **there was no safe way to change network namespaces, even temporarily, from within a long-lived, multithreaded Go process**. If you wish to do this, you must use go 1.10 or greater. - - -### Creating network namespaces -Earlier versions of this library managed namespace creation, but as CNI does not actually utilize this feature (and it was essentially unmaintained), it was removed. If you're writing a container runtime, you should implement namespace management yourself. However, there are some gotchas when doing so, especially around handling `/var/run/netns`. A reasonably correct reference implementation, borrowed from `rkt`, can be found in `pkg/testutils/netns_linux.go` if you're in need of a source of inspiration. - - -### Further Reading - - https://github.com/golang/go/wiki/LockOSThread - - http://morsmachine.dk/go-scheduler - - https://github.com/containernetworking/cni/issues/262 - - https://golang.org/pkg/runtime/ - - https://www.weave.works/blog/linux-namespaces-and-go-don-t-mix diff --git a/vendor/github.com/containernetworking/plugins/pkg/ns/ns_linux.go b/vendor/github.com/containernetworking/plugins/pkg/ns/ns_linux.go deleted file mode 100644 index 31ad5f6..0000000 --- a/vendor/github.com/containernetworking/plugins/pkg/ns/ns_linux.go +++ /dev/null @@ -1,216 +0,0 @@ -// Copyright 2015-2017 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 ( - "fmt" - "os" - "runtime" - "sync" - "syscall" - - "golang.org/x/sys/unix" -) - -// Returns an object representing the current OS thread's network namespace -func GetCurrentNS() (NetNS, error) { - return GetNS(getCurrentThreadNetNSPath()) -} - -func getCurrentThreadNetNSPath() string { - // /proc/self/ns/net returns the namespace of the main thread, not - // of whatever thread this goroutine is running on. Make sure we - // use the thread's net namespace since the thread is switching around - return fmt.Sprintf("/proc/%d/task/%d/ns/net", os.Getpid(), unix.Gettid()) -} - -func (ns *netNS) Close() error { - if err := ns.errorIfClosed(); err != nil { - return err - } - - if err := ns.file.Close(); err != nil { - return fmt.Errorf("Failed to close %q: %v", ns.file.Name(), err) - } - ns.closed = true - - return nil -} - -func (ns *netNS) Set() error { - if err := ns.errorIfClosed(); err != nil { - return err - } - - if err := unix.Setns(int(ns.Fd()), unix.CLONE_NEWNET); err != nil { - return fmt.Errorf("Error switching to ns %v: %v", ns.file.Name(), err) - } - - return nil -} - -type NetNS interface { - // Executes the passed closure in this object's network namespace, - // attempting to restore the original namespace before returning. - // However, since each OS thread can have a different network namespace, - // and Go's thread scheduling is highly variable, callers cannot - // guarantee any specific namespace is set unless operations that - // require that namespace are wrapped with Do(). Also, no code called - // from Do() should call runtime.UnlockOSThread(), or the risk - // of executing code in an incorrect namespace will be greater. See - // https://github.com/golang/go/wiki/LockOSThread for further details. - Do(toRun func(NetNS) error) error - - // Sets the current network namespace to this object's network namespace. - // Note that since Go's thread scheduling is highly variable, callers - // cannot guarantee the requested namespace will be the current namespace - // after this function is called; to ensure this wrap operations that - // require the namespace with Do() instead. - Set() error - - // Returns the filesystem path representing this object's network namespace - Path() string - - // Returns a file descriptor representing this object's network namespace - Fd() uintptr - - // Cleans up this instance of the network namespace; if this instance - // is the last user the namespace will be destroyed - Close() error -} - -type netNS struct { - file *os.File - closed bool -} - -// netNS implements the NetNS interface -var _ NetNS = &netNS{} - -const ( - // https://github.com/torvalds/linux/blob/master/include/uapi/linux/magic.h - NSFS_MAGIC = 0x6e736673 - PROCFS_MAGIC = 0x9fa0 -) - -type NSPathNotExistErr struct{ msg string } - -func (e NSPathNotExistErr) Error() string { return e.msg } - -type NSPathNotNSErr struct{ msg string } - -func (e NSPathNotNSErr) Error() string { return e.msg } - -func IsNSorErr(nspath string) error { - stat := syscall.Statfs_t{} - if err := syscall.Statfs(nspath, &stat); err != nil { - if os.IsNotExist(err) { - err = NSPathNotExistErr{msg: fmt.Sprintf("failed to Statfs %q: %v", nspath, err)} - } else { - err = fmt.Errorf("failed to Statfs %q: %v", nspath, err) - } - return err - } - - switch stat.Type { - case PROCFS_MAGIC, NSFS_MAGIC: - return nil - default: - return NSPathNotNSErr{msg: fmt.Sprintf("unknown FS magic on %q: %x", nspath, stat.Type)} - } -} - -// Returns an object representing the namespace referred to by @path -func GetNS(nspath string) (NetNS, error) { - err := IsNSorErr(nspath) - if err != nil { - return nil, err - } - - fd, err := os.Open(nspath) - if err != nil { - return nil, err - } - - return &netNS{file: fd}, nil -} - -func (ns *netNS) Path() string { - return ns.file.Name() -} - -func (ns *netNS) Fd() uintptr { - return ns.file.Fd() -} - -func (ns *netNS) errorIfClosed() error { - if ns.closed { - return fmt.Errorf("%q has already been closed", ns.file.Name()) - } - return nil -} - -func (ns *netNS) Do(toRun func(NetNS) error) error { - if err := ns.errorIfClosed(); err != nil { - return err - } - - containedCall := func(hostNS NetNS) error { - threadNS, err := GetCurrentNS() - if err != nil { - return fmt.Errorf("failed to open current netns: %v", err) - } - defer threadNS.Close() - - // switch to target namespace - if err = ns.Set(); err != nil { - return fmt.Errorf("error switching to ns %v: %v", ns.file.Name(), err) - } - defer threadNS.Set() // switch back - - return toRun(hostNS) - } - - // save a handle to current network namespace - hostNS, err := GetCurrentNS() - if err != nil { - return fmt.Errorf("Failed to open current namespace: %v", err) - } - defer hostNS.Close() - - var wg sync.WaitGroup - wg.Add(1) - - var innerError error - go func() { - defer wg.Done() - runtime.LockOSThread() - innerError = containedCall(hostNS) - }() - wg.Wait() - - return innerError -} - -// WithNetNSPath executes the passed closure under the given network -// namespace, restoring the original namespace afterwards. -func WithNetNSPath(nspath string, toRun func(NetNS) error) error { - ns, err := GetNS(nspath) - if err != nil { - return err - } - defer ns.Close() - return ns.Do(toRun) -} diff --git a/vendor/github.com/containernetworking/plugins/pkg/testutils/bad_reader.go b/vendor/github.com/containernetworking/plugins/pkg/testutils/bad_reader.go deleted file mode 100644 index f9d0ade..0000000 --- a/vendor/github.com/containernetworking/plugins/pkg/testutils/bad_reader.go +++ /dev/null @@ -1,33 +0,0 @@ -// Copyright 2016 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 testutils - -import "errors" - -// BadReader is an io.Reader which always errors -type BadReader struct { - Error error -} - -func (r *BadReader) Read(buffer []byte) (int, error) { - if r.Error != nil { - return 0, r.Error - } - return 0, errors.New("banana") -} - -func (r *BadReader) Close() error { - return nil -} diff --git a/vendor/github.com/containernetworking/plugins/pkg/testutils/cmd.go b/vendor/github.com/containernetworking/plugins/pkg/testutils/cmd.go deleted file mode 100644 index ce600f6..0000000 --- a/vendor/github.com/containernetworking/plugins/pkg/testutils/cmd.go +++ /dev/null @@ -1,112 +0,0 @@ -// Copyright 2016 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 testutils - -import ( - "io/ioutil" - "os" - - "github.com/containernetworking/cni/pkg/skel" - "github.com/containernetworking/cni/pkg/types" - "github.com/containernetworking/cni/pkg/version" -) - -func envCleanup() { - os.Unsetenv("CNI_COMMAND") - os.Unsetenv("CNI_PATH") - os.Unsetenv("CNI_NETNS") - os.Unsetenv("CNI_IFNAME") - os.Unsetenv("CNI_CONTAINERID") -} - -func CmdAdd(cniNetns, cniContainerID, cniIfname string, conf []byte, f func() error) (types.Result, []byte, error) { - os.Setenv("CNI_COMMAND", "ADD") - os.Setenv("CNI_PATH", os.Getenv("PATH")) - os.Setenv("CNI_NETNS", cniNetns) - os.Setenv("CNI_IFNAME", cniIfname) - os.Setenv("CNI_CONTAINERID", cniContainerID) - defer envCleanup() - - // Redirect stdout to capture plugin result - oldStdout := os.Stdout - r, w, err := os.Pipe() - if err != nil { - return nil, nil, err - } - - os.Stdout = w - err = f() - w.Close() - - var out []byte - if err == nil { - out, err = ioutil.ReadAll(r) - } - os.Stdout = oldStdout - - // Return errors after restoring stdout so Ginkgo will correctly - // emit verbose error information on stdout - if err != nil { - return nil, nil, err - } - - // Plugin must return result in same version as specified in netconf - versionDecoder := &version.ConfigDecoder{} - confVersion, err := versionDecoder.Decode(conf) - if err != nil { - return nil, nil, err - } - - result, err := version.NewResult(confVersion, out) - if err != nil { - return nil, nil, err - } - - return result, out, nil -} - -func CmdAddWithArgs(args *skel.CmdArgs, f func() error) (types.Result, []byte, error) { - return CmdAdd(args.Netns, args.ContainerID, args.IfName, args.StdinData, f) -} - -func CmdCheck(cniNetns, cniContainerID, cniIfname string, conf []byte, f func() error) error { - os.Setenv("CNI_COMMAND", "CHECK") - os.Setenv("CNI_PATH", os.Getenv("PATH")) - os.Setenv("CNI_NETNS", cniNetns) - os.Setenv("CNI_IFNAME", cniIfname) - os.Setenv("CNI_CONTAINERID", cniContainerID) - defer envCleanup() - - return f() -} - -func CmdCheckWithArgs(args *skel.CmdArgs, f func() error) error { - return CmdCheck(args.Netns, args.ContainerID, args.IfName, args.StdinData, f) -} - -func CmdDel(cniNetns, cniContainerID, cniIfname string, f func() error) error { - os.Setenv("CNI_COMMAND", "DEL") - os.Setenv("CNI_PATH", os.Getenv("PATH")) - os.Setenv("CNI_NETNS", cniNetns) - os.Setenv("CNI_IFNAME", cniIfname) - os.Setenv("CNI_CONTAINERID", cniContainerID) - defer envCleanup() - - return f() -} - -func CmdDelWithArgs(args *skel.CmdArgs, f func() error) error { - return CmdDel(args.Netns, args.ContainerID, args.IfName, f) -} diff --git a/vendor/github.com/containernetworking/plugins/pkg/testutils/netns_linux.go b/vendor/github.com/containernetworking/plugins/pkg/testutils/netns_linux.go deleted file mode 100644 index 6d56e40..0000000 --- a/vendor/github.com/containernetworking/plugins/pkg/testutils/netns_linux.go +++ /dev/null @@ -1,157 +0,0 @@ -// Copyright 2018 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 testutils - -import ( - "crypto/rand" - "fmt" - "os" - "path" - "runtime" - "strings" - "sync" - - "github.com/containernetworking/plugins/pkg/ns" - "golang.org/x/sys/unix" -) - -const nsRunDir = "/var/run/netns" - -// Creates a new persistent (bind-mounted) network namespace and returns an object -// representing that namespace, without switching to it. -func NewNS() (ns.NetNS, error) { - - b := make([]byte, 16) - _, err := rand.Reader.Read(b) - if err != nil { - return nil, fmt.Errorf("failed to generate random netns name: %v", err) - } - - // Create the directory for mounting network namespaces - // This needs to be a shared mountpoint in case it is mounted in to - // other namespaces (containers) - err = os.MkdirAll(nsRunDir, 0755) - if err != nil { - return nil, err - } - - // Remount the namespace directory shared. This will fail if it is not - // already a mountpoint, so bind-mount it on to itself to "upgrade" it - // to a mountpoint. - err = unix.Mount("", nsRunDir, "none", unix.MS_SHARED|unix.MS_REC, "") - if err != nil { - if err != unix.EINVAL { - return nil, fmt.Errorf("mount --make-rshared %s failed: %q", nsRunDir, err) - } - - // Recursively remount /var/run/netns on itself. The recursive flag is - // so that any existing netns bindmounts are carried over. - err = unix.Mount(nsRunDir, nsRunDir, "none", unix.MS_BIND|unix.MS_REC, "") - if err != nil { - return nil, fmt.Errorf("mount --rbind %s %s failed: %q", nsRunDir, nsRunDir, err) - } - - // Now we can make it shared - err = unix.Mount("", nsRunDir, "none", unix.MS_SHARED|unix.MS_REC, "") - if err != nil { - return nil, fmt.Errorf("mount --make-rshared %s failed: %q", nsRunDir, err) - } - - } - - nsName := fmt.Sprintf("cnitest-%x-%x-%x-%x-%x", b[0:4], b[4:6], b[6:8], b[8:10], b[10:]) - - // create an empty file at the mount point - nsPath := path.Join(nsRunDir, nsName) - mountPointFd, err := os.Create(nsPath) - if err != nil { - return nil, err - } - mountPointFd.Close() - - // Ensure the mount point is cleaned up on errors; if the namespace - // was successfully mounted this will have no effect because the file - // is in-use - defer os.RemoveAll(nsPath) - - var wg sync.WaitGroup - wg.Add(1) - - // do namespace work in a dedicated goroutine, so that we can safely - // Lock/Unlock OSThread without upsetting the lock/unlock state of - // the caller of this function - go (func() { - defer wg.Done() - runtime.LockOSThread() - // Don't unlock. By not unlocking, golang will kill the OS thread when the - // goroutine is done (for go1.10+) - - var origNS ns.NetNS - origNS, err = ns.GetNS(getCurrentThreadNetNSPath()) - if err != nil { - return - } - defer origNS.Close() - - // create a new netns on the current thread - err = unix.Unshare(unix.CLONE_NEWNET) - if err != nil { - return - } - - // Put this thread back to the orig ns, since it might get reused (pre go1.10) - defer origNS.Set() - - // bind mount the netns from the current thread (from /proc) onto the - // mount point. This causes the namespace to persist, even when there - // are no threads in the ns. - err = unix.Mount(getCurrentThreadNetNSPath(), nsPath, "none", unix.MS_BIND, "") - if err != nil { - err = fmt.Errorf("failed to bind mount ns at %s: %v", nsPath, err) - } - })() - wg.Wait() - - if err != nil { - return nil, fmt.Errorf("failed to create namespace: %v", err) - } - - return ns.GetNS(nsPath) -} - -// UnmountNS unmounts the NS held by the netns object -func UnmountNS(ns ns.NetNS) error { - nsPath := ns.Path() - // Only unmount if it's been bind-mounted (don't touch namespaces in /proc...) - if strings.HasPrefix(nsPath, nsRunDir) { - if err := unix.Unmount(nsPath, 0); err != nil { - return fmt.Errorf("failed to unmount NS: at %s: %v", nsPath, err) - } - - if err := os.Remove(nsPath); err != nil { - return fmt.Errorf("failed to remove ns path %s: %v", nsPath, err) - } - } - - return nil -} - -// getCurrentThreadNetNSPath copied from pkg/ns -func getCurrentThreadNetNSPath() string { - // /proc/self/ns/net returns the namespace of the main thread, not - // of whatever thread this goroutine is running on. Make sure we - // use the thread's net namespace since the thread is switching around - return fmt.Sprintf("/proc/%d/task/%d/ns/net", os.Getpid(), unix.Gettid()) -} diff --git a/vendor/github.com/containernetworking/plugins/pkg/testutils/ping.go b/vendor/github.com/containernetworking/plugins/pkg/testutils/ping.go deleted file mode 100644 index 5ee9db1..0000000 --- a/vendor/github.com/containernetworking/plugins/pkg/testutils/ping.go +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2017 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 testutils - -import ( - "bytes" - "fmt" - "os/exec" - "strconv" - "syscall" -) - -// Ping shells out to the `ping` command. Returns nil if successful. -func Ping(saddr, daddr string, isV6 bool, timeoutSec int) error { - args := []string{ - "-c", "1", - "-W", strconv.Itoa(timeoutSec), - "-I", saddr, - daddr, - } - - bin := "ping" - if isV6 { - bin = "ping6" - } - - cmd := exec.Command(bin, args...) - var stderr bytes.Buffer - cmd.Stderr = &stderr - - if err := cmd.Run(); err != nil { - switch e := err.(type) { - case *exec.ExitError: - return fmt.Errorf("%v exit status %d: %s", - args, e.Sys().(syscall.WaitStatus).ExitStatus(), - stderr.String()) - default: - return err - } - } - - return nil -} diff --git a/vendor/github.com/containernetworking/plugins/pkg/utils/buildversion/buildversion.go b/vendor/github.com/containernetworking/plugins/pkg/utils/buildversion/buildversion.go deleted file mode 100644 index 734d418..0000000 --- a/vendor/github.com/containernetworking/plugins/pkg/utils/buildversion/buildversion.go +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2019 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. - -// Buildversion is a destination for the linker trickery so we can auto -// set the build-version -package buildversion - -import "fmt" - -// This is overridden in the linker script -var BuildVersion = "version unknown" - -func BuildString(pluginName string) string { - return fmt.Sprintf("CNI %s plugin %s", pluginName, BuildVersion) -} diff --git a/vendor/github.com/containernetworking/plugins/plugins/ipam/host-local/backend/disk/backend.go b/vendor/github.com/containernetworking/plugins/plugins/ipam/host-local/backend/disk/backend.go deleted file mode 100644 index 56f1638..0000000 --- a/vendor/github.com/containernetworking/plugins/plugins/ipam/host-local/backend/disk/backend.go +++ /dev/null @@ -1,209 +0,0 @@ -// Copyright 2015 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 disk - -import ( - "io/ioutil" - "net" - "os" - "path/filepath" - "runtime" - "strings" - - "github.com/containernetworking/plugins/plugins/ipam/host-local/backend" -) - -const lastIPFilePrefix = "last_reserved_ip." -const LineBreak = "\r\n" - -var defaultDataDir = "/var/lib/cni/networks" - -// Store is a simple disk-backed store that creates one file per IP -// address in a given directory. The contents of the file are the container ID. -type Store struct { - *FileLock - dataDir string -} - -// Store implements the Store interface -var _ backend.Store = &Store{} - -func New(network, dataDir string) (*Store, error) { - if dataDir == "" { - dataDir = defaultDataDir - } - dir := filepath.Join(dataDir, network) - if err := os.MkdirAll(dir, 0755); err != nil { - return nil, err - } - - lk, err := NewFileLock(dir) - if err != nil { - return nil, err - } - return &Store{lk, dir}, nil -} - -func (s *Store) Reserve(id string, ifname string, ip net.IP, rangeID string) (bool, error) { - fname := GetEscapedPath(s.dataDir, ip.String()) - - f, err := os.OpenFile(fname, os.O_RDWR|os.O_EXCL|os.O_CREATE, 0644) - if os.IsExist(err) { - return false, nil - } - if err != nil { - return false, err - } - if _, err := f.WriteString(strings.TrimSpace(id) + LineBreak + ifname); err != nil { - f.Close() - os.Remove(f.Name()) - return false, err - } - if err := f.Close(); err != nil { - os.Remove(f.Name()) - return false, err - } - // store the reserved ip in lastIPFile - ipfile := GetEscapedPath(s.dataDir, lastIPFilePrefix+rangeID) - err = ioutil.WriteFile(ipfile, []byte(ip.String()), 0644) - if err != nil { - return false, err - } - return true, nil -} - -// LastReservedIP returns the last reserved IP if exists -func (s *Store) LastReservedIP(rangeID string) (net.IP, error) { - ipfile := GetEscapedPath(s.dataDir, lastIPFilePrefix+rangeID) - data, err := ioutil.ReadFile(ipfile) - if err != nil { - return nil, err - } - return net.ParseIP(string(data)), nil -} - -func (s *Store) Release(ip net.IP) error { - return os.Remove(GetEscapedPath(s.dataDir, ip.String())) -} - -func (s *Store) FindByKey(id string, ifname string, match string) (bool, error) { - found := false - - err := filepath.Walk(s.dataDir, func(path string, info os.FileInfo, err error) error { - if err != nil || info.IsDir() { - return nil - } - data, err := ioutil.ReadFile(path) - if err != nil { - return nil - } - if strings.TrimSpace(string(data)) == match { - found = true - } - return nil - }) - return found, err - -} - -func (s *Store) FindByID(id string, ifname string) bool { - s.Lock() - defer s.Unlock() - - found := false - match := strings.TrimSpace(id) + LineBreak + ifname - found, err := s.FindByKey(id, ifname, match) - - // Match anything created by this id - if !found && err == nil { - match := strings.TrimSpace(id) - found, err = s.FindByKey(id, ifname, match) - } - - return found -} - -func (s *Store) ReleaseByKey(id string, ifname string, match string) (bool, error) { - found := false - err := filepath.Walk(s.dataDir, func(path string, info os.FileInfo, err error) error { - if err != nil || info.IsDir() { - return nil - } - data, err := ioutil.ReadFile(path) - if err != nil { - return nil - } - if strings.TrimSpace(string(data)) == match { - if err := os.Remove(path); err != nil { - return nil - } - found = true - } - return nil - }) - return found, err - -} - -// N.B. This function eats errors to be tolerant and -// release as much as possible -func (s *Store) ReleaseByID(id string, ifname string) error { - found := false - match := strings.TrimSpace(id) + LineBreak + ifname - found, err := s.ReleaseByKey(id, ifname, match) - - // For backwards compatibility, look for files written by a previous version - if !found && err == nil { - match := strings.TrimSpace(id) - found, err = s.ReleaseByKey(id, ifname, match) - } - return err -} - -// GetByID returns the IPs which have been allocated to the specific ID -func (s *Store) GetByID(id string, ifname string) []net.IP { - var ips []net.IP - - match := strings.TrimSpace(id) + LineBreak + ifname - // matchOld for backwards compatibility - matchOld := strings.TrimSpace(id) - - // walk through all ips in this network to get the ones which belong to a specific ID - _ = filepath.Walk(s.dataDir, func(path string, info os.FileInfo, err error) error { - if err != nil || info.IsDir() { - return nil - } - data, err := ioutil.ReadFile(path) - if err != nil { - return nil - } - if strings.TrimSpace(string(data)) == match || strings.TrimSpace(string(data)) == matchOld { - _, ipString := filepath.Split(path) - if ip := net.ParseIP(ipString); ip != nil { - ips = append(ips, ip) - } - } - return nil - }) - - return ips -} - -func GetEscapedPath(dataDir string, fname string) string { - if runtime.GOOS == "windows" { - fname = strings.Replace(fname, ":", "_", -1) - } - return filepath.Join(dataDir, fname) -} diff --git a/vendor/github.com/containernetworking/plugins/plugins/ipam/host-local/backend/disk/lock.go b/vendor/github.com/containernetworking/plugins/plugins/ipam/host-local/backend/disk/lock.go deleted file mode 100644 index fe7b480..0000000 --- a/vendor/github.com/containernetworking/plugins/plugins/ipam/host-local/backend/disk/lock.go +++ /dev/null @@ -1,59 +0,0 @@ -// Copyright 2015 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 disk - -import ( - "github.com/alexflint/go-filemutex" - "os" - "path" -) - -// FileLock wraps os.File to be used as a lock using flock -type FileLock struct { - f *filemutex.FileMutex -} - -// NewFileLock opens file/dir at path and returns unlocked FileLock object -func NewFileLock(lockPath string) (*FileLock, error) { - fi, err := os.Stat(lockPath) - if err != nil { - return nil, err - } - - if fi.IsDir() { - lockPath = path.Join(lockPath, "lock") - } - - f, err := filemutex.New(lockPath) - if err != nil { - return nil, err - } - - return &FileLock{f}, nil -} - -func (l *FileLock) Close() error { - return l.f.Close() -} - -// Lock acquires an exclusive lock -func (l *FileLock) Lock() error { - return l.f.Lock() -} - -// Unlock releases the lock -func (l *FileLock) Unlock() error { - return l.f.Unlock() -} diff --git a/vendor/github.com/containernetworking/plugins/plugins/ipam/host-local/backend/store.go b/vendor/github.com/containernetworking/plugins/plugins/ipam/host-local/backend/store.go deleted file mode 100644 index 7211ddf..0000000 --- a/vendor/github.com/containernetworking/plugins/plugins/ipam/host-local/backend/store.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2015 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 backend - -import "net" - -type Store interface { - Lock() error - Unlock() error - Close() error - Reserve(id string, ifname string, ip net.IP, rangeID string) (bool, error) - LastReservedIP(rangeID string) (net.IP, error) - Release(ip net.IP) error - ReleaseByID(id string, ifname string) error - GetByID(id string, ifname string) []net.IP -} |