--- /dev/null
+{
+ "ImportPath": "github.com/containernetworking/plugins",
+ "GoVersion": "go1.7",
+ "GodepVersion": "v79",
+ "Packages": [
+ "./..."
+ ],
+ "Deps": [
+ {
+ "ImportPath": "github.com/containernetworking/cni/pkg/skel",
+ "Comment": "v0.5.0",
+ "Rev": "4ce9b019aab51b28a32ff6549784a69f9b209fe4"
+ },
+ {
+ "ImportPath": "github.com/containernetworking/cni/pkg/types",
+ "Comment": "v0.5.0",
+ "Rev": "4ce9b019aab51b28a32ff6549784a69f9b209fe4"
+ },
+ {
+ "ImportPath": "github.com/containernetworking/cni/pkg/types/020",
+ "Comment": "v0.5.0",
+ "Rev": "4ce9b019aab51b28a32ff6549784a69f9b209fe4"
+ },
+ {
+ "ImportPath": "github.com/containernetworking/cni/pkg/types/current",
+ "Comment": "v0.5.0",
+ "Rev": "4ce9b019aab51b28a32ff6549784a69f9b209fe4"
+ },
+ {
+ "ImportPath": "github.com/containernetworking/cni/pkg/version",
+ "Comment": "v0.5.0",
+ "Rev": "4ce9b019aab51b28a32ff6549784a69f9b209fe4"
+ }
+ ]
+}
--- /dev/null
+This directory tree is generated automatically by godep.
+
+Please do not edit.
+
+See https://github.com/tools/godep for more information.
--- /dev/null
+ 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. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. 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. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. 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
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "{}"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright {yyyy} {name of copyright owner}
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
--- /dev/null
+// 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 (
+ "fmt"
+ "io"
+ "io/ioutil"
+ "log"
+ "os"
+
+ "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
+
+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,
+ "DEL": true,
+ },
+ },
+ {
+ "CNI_CONTAINERID",
+ &contID,
+ reqForCmdEntry{
+ "ADD": false,
+ "DEL": false,
+ },
+ },
+ {
+ "CNI_NETNS",
+ &netns,
+ reqForCmdEntry{
+ "ADD": true,
+ "DEL": false,
+ },
+ },
+ {
+ "CNI_IFNAME",
+ &ifName,
+ reqForCmdEntry{
+ "ADD": true,
+ "DEL": true,
+ },
+ },
+ {
+ "CNI_ARGS",
+ &args,
+ reqForCmdEntry{
+ "ADD": false,
+ "DEL": false,
+ },
+ },
+ {
+ "CNI_PATH",
+ &path,
+ reqForCmdEntry{
+ "ADD": true,
+ "DEL": true,
+ },
+ },
+ }
+
+ argsMissing := false
+ for _, v := range vars {
+ *v.val = t.Getenv(v.name)
+ if *v.val == "" {
+ if v.reqForCmd[cmd] || v.name == "CNI_COMMAND" {
+ fmt.Fprintf(t.Stderr, "%v env variable missing\n", v.name)
+ argsMissing = true
+ }
+ }
+ }
+
+ if argsMissing {
+ return "", nil, fmt.Errorf("required env variables missing")
+ }
+
+ 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 (t *dispatcher) pluginMain(cmdAdd, cmdDel func(_ *CmdArgs) error, versionInfo version.PluginInfo) *types.Error {
+ cmd, cmdArgs, err := t.getCmdArgsFromEnv()
+ if err != nil {
+ return createTypedError(err.Error())
+ }
+
+ switch cmd {
+ case "ADD":
+ err = t.checkVersionAndCall(cmdArgs, versionInfo, cmdAdd)
+ 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 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, cmdDel func(_ *CmdArgs) error, versionInfo version.PluginInfo) *types.Error {
+ return (&dispatcher{
+ Getenv: os.Getenv,
+ Stdin: os.Stdin,
+ Stdout: os.Stdout,
+ Stderr: os.Stderr,
+ }).pluginMain(cmdAdd, cmdDel, versionInfo)
+}
+
+// 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.
+//
+// When an error occurs in either cmdAdd 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, cmdDel func(_ *CmdArgs) error, versionInfo version.PluginInfo) {
+ if e := PluginMainWithError(cmdAdd, cmdDel, versionInfo); e != nil {
+ if err := e.Print(); err != nil {
+ log.Print("Error writing error JSON to stdout: ", err)
+ }
+ os.Exit(1)
+ }
+}
--- /dev/null
+// 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"
+ "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 {
+ 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 {
+ return r, nil
+ }
+ }
+ return nil, fmt.Errorf("cannot convert version %q to %s", SupportedVersions, version)
+}
+
+func (r *Result) Print() error {
+ data, err := json.MarshalIndent(r, "", " ")
+ if err != nil {
+ return err
+ }
+ _, err = os.Stdout.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
+}
--- /dev/null
+// 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)
+}
+
+// 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
+ }
+
+ u := keyField.Addr().Interface().(encoding.TextUnmarshaler)
+ 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
+}
--- /dev/null
+// 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"
+ "net"
+ "os"
+
+ "github.com/containernetworking/cni/pkg/types"
+ "github.com/containernetworking/cni/pkg/types/020"
+)
+
+const implementedSpecVersion string = "0.3.0"
+
+var SupportedVersions = []string{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{
+ DNS: oldResult.DNS,
+ Routes: []*types.Route{},
+ }
+
+ if oldResult.IP4 != nil {
+ newResult.IPs = append(newResult.IPs, &IPConfig{
+ Version: "4",
+ Interface: -1,
+ Address: oldResult.IP4.IP,
+ Gateway: oldResult.IP4.Gateway,
+ })
+ for _, route := range oldResult.IP4.Routes {
+ gw := route.GW
+ if gw == nil {
+ gw = oldResult.IP4.Gateway
+ }
+ newResult.Routes = append(newResult.Routes, &types.Route{
+ Dst: route.Dst,
+ GW: gw,
+ })
+ }
+ }
+
+ if oldResult.IP6 != nil {
+ newResult.IPs = append(newResult.IPs, &IPConfig{
+ Version: "6",
+ Interface: -1,
+ Address: oldResult.IP6.IP,
+ Gateway: oldResult.IP6.Gateway,
+ })
+ for _, route := range oldResult.IP6.Routes {
+ gw := route.GW
+ if gw == nil {
+ gw = oldResult.IP6.Gateway
+ }
+ newResult.Routes = append(newResult.Routes, &types.Route{
+ Dst: route.Dst,
+ GW: gw,
+ })
+ }
+ }
+
+ if len(newResult.IPs) == 0 {
+ return nil, fmt.Errorf("cannot convert: no valid IP addresses")
+ }
+
+ return newResult, nil
+}
+
+func convertFrom030(result types.Result) (*Result, error) {
+ newResult, ok := result.(*Result)
+ if !ok {
+ return nil, fmt.Errorf("failed to convert result")
+ }
+ 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 result version %q", version)
+}
+
+// Result is what gets returned from the plugin (via stdout) to the caller
+type Result struct {
+ 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{
+ 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 implementedSpecVersion:
+ return r, nil
+ case types020.SupportedVersions[0], types020.SupportedVersions[1], types020.SupportedVersions[2]:
+ return r.convertTo020()
+ }
+ return nil, fmt.Errorf("cannot convert version 0.3.0 to %q", version)
+}
+
+func (r *Result) Print() error {
+ data, err := json.MarshalIndent(r, "", " ")
+ if err != nil {
+ return err
+ }
+ _, err = os.Stdout.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)
+}
+
+// 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
+}
--- /dev/null
+// 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"
+ "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 struct {
+ Type string `json:"type,omitempty"`
+ } `json:"ipam,omitempty"`
+ DNS DNS `json:"dns"`
+}
+
+// NetConfList describes an ordered list of networks.
+type NetConfList struct {
+ CNIVersion string `json:"cniVersion,omitempty"`
+
+ Name string `json:"name,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 verison 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
+
+ // 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 {
+ return e.Msg
+}
+
+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")
--- /dev/null
+// 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
+}
--- /dev/null
+// 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"
+)
+
+// 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
+}
--- /dev/null
+// 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,
+ }
+}
--- /dev/null
+// 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"
+
+ "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 "0.3.0"
+}
+
+// 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")
+
+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)
+}
git://git.halfball.org / plugins.git / commitdiff