diff options
Diffstat (limited to 'vendor/github.com/containernetworking')
15 files changed, 1028 insertions, 382 deletions
diff --git a/vendor/github.com/containernetworking/cni/libcni/api.go b/vendor/github.com/containernetworking/cni/libcni/api.go index 7e52bd838..0d82a2dd3 100644 --- a/vendor/github.com/containernetworking/cni/libcni/api.go +++ b/vendor/github.com/containernetworking/cni/libcni/api.go @@ -14,6 +14,12 @@ package libcni +// Note this is the actual implementation of the CNI specification, which +// is reflected in the https://github.com/containernetworking/cni/blob/master/SPEC.md file +// it is typically bundled into runtime providers (i.e. containerd or cri-o would use this +// before calling runc or hcsshim). It is also bundled into CNI providers as well, for example, +// to add an IP to a container, to parse the configuration of the CNI and so on. + import ( "context" "encoding/json" @@ -25,6 +31,7 @@ import ( "github.com/containernetworking/cni/pkg/invoke" "github.com/containernetworking/cni/pkg/types" + "github.com/containernetworking/cni/pkg/types/create" "github.com/containernetworking/cni/pkg/utils" "github.com/containernetworking/cni/pkg/version" ) @@ -278,7 +285,7 @@ func (c *CNIConfig) getCachedConfig(netName string, rt *RuntimeConf) ([]byte, *R unmarshaled := cachedInfo{} if err := json.Unmarshal(bytes, &unmarshaled); err != nil { - return nil, nil, fmt.Errorf("failed to unmarshal cached network %q config: %v", netName, err) + return nil, nil, fmt.Errorf("failed to unmarshal cached network %q config: %w", netName, err) } if unmarshaled.Kind != CNICacheV1 { return nil, nil, fmt.Errorf("read cached network %q config has wrong kind: %v", netName, unmarshaled.Kind) @@ -304,15 +311,8 @@ func (c *CNIConfig) getLegacyCachedResult(netName, cniVersion string, rt *Runtim return nil, nil } - // Read the version of the cached result - decoder := version.ConfigDecoder{} - resultCniVersion, err := decoder.Decode(data) - if err != nil { - return nil, err - } - - // Ensure we can understand the result - result, err := version.NewResult(resultCniVersion, data) + // Load the cached result + result, err := create.CreateFromBytes(data) if err != nil { return nil, err } @@ -322,10 +322,10 @@ func (c *CNIConfig) getLegacyCachedResult(netName, cniVersion string, rt *Runtim // should match the config version unless the config was changed // while the container was running. result, err = result.GetAsVersion(cniVersion) - if err != nil && resultCniVersion != cniVersion { - return nil, fmt.Errorf("failed to convert cached result version %q to config version %q: %v", resultCniVersion, cniVersion, err) + if err != nil { + return nil, fmt.Errorf("failed to convert cached result to config version %q: %w", cniVersion, err) } - return result, err + return result, nil } func (c *CNIConfig) getCachedResult(netName, cniVersion string, rt *RuntimeConf) (types.Result, error) { @@ -346,18 +346,11 @@ func (c *CNIConfig) getCachedResult(netName, cniVersion string, rt *RuntimeConf) newBytes, err := json.Marshal(&cachedInfo.RawResult) if err != nil { - return nil, fmt.Errorf("failed to marshal cached network %q config: %v", netName, err) + return nil, fmt.Errorf("failed to marshal cached network %q config: %w", netName, err) } - // Read the version of the cached result - decoder := version.ConfigDecoder{} - resultCniVersion, err := decoder.Decode(newBytes) - if err != nil { - return nil, err - } - - // Ensure we can understand the result - result, err := version.NewResult(resultCniVersion, newBytes) + // Load the cached result + result, err := create.CreateFromBytes(newBytes) if err != nil { return nil, err } @@ -367,10 +360,10 @@ func (c *CNIConfig) getCachedResult(netName, cniVersion string, rt *RuntimeConf) // should match the config version unless the config was changed // while the container was running. result, err = result.GetAsVersion(cniVersion) - if err != nil && resultCniVersion != cniVersion { - return nil, fmt.Errorf("failed to convert cached result version %q to config version %q: %v", resultCniVersion, cniVersion, err) + if err != nil { + return nil, fmt.Errorf("failed to convert cached result to config version %q: %w", cniVersion, err) } - return result, err + return result, nil } // GetNetworkListCachedResult returns the cached Result of the previous @@ -428,12 +421,12 @@ func (c *CNIConfig) AddNetworkList(ctx context.Context, list *NetworkConfigList, for _, net := range list.Plugins { result, err = c.addNetwork(ctx, list.Name, list.CNIVersion, net, result, rt) if err != nil { - return nil, err + return nil, fmt.Errorf("plugin %s failed (add): %w", pluginDescription(net.Network), err) } } if err = c.cacheAdd(result, list.Bytes, list.Name, rt); err != nil { - return nil, fmt.Errorf("failed to set network %q cached result: %v", list.Name, err) + return nil, fmt.Errorf("failed to set network %q cached result: %w", list.Name, err) } return result, nil @@ -469,7 +462,7 @@ func (c *CNIConfig) CheckNetworkList(ctx context.Context, list *NetworkConfigLis cachedResult, err := c.getCachedResult(list.Name, list.CNIVersion, rt) if err != nil { - return fmt.Errorf("failed to get network %q cached result: %v", list.Name, err) + return fmt.Errorf("failed to get network %q cached result: %w", list.Name, err) } for _, net := range list.Plugins { @@ -506,14 +499,14 @@ func (c *CNIConfig) DelNetworkList(ctx context.Context, list *NetworkConfigList, } else if gtet { cachedResult, err = c.getCachedResult(list.Name, list.CNIVersion, rt) if err != nil { - return fmt.Errorf("failed to get network %q cached result: %v", list.Name, err) + return fmt.Errorf("failed to get network %q cached result: %w", list.Name, err) } } for i := len(list.Plugins) - 1; i >= 0; i-- { net := list.Plugins[i] if err := c.delNetwork(ctx, list.Name, list.CNIVersion, net, cachedResult, rt); err != nil { - return err + return fmt.Errorf("plugin %s failed (delete): %w", pluginDescription(net.Network), err) } } _ = c.cacheDel(list.Name, rt) @@ -521,6 +514,19 @@ func (c *CNIConfig) DelNetworkList(ctx context.Context, list *NetworkConfigList, return nil } +func pluginDescription(net *types.NetConf) string { + if net == nil { + return "<missing>" + } + pluginType := net.Type + out := fmt.Sprintf("type=%q", pluginType) + name := net.Name + if name != "" { + out += fmt.Sprintf(" name=%q", name) + } + return out +} + // AddNetwork executes the plugin with the ADD command func (c *CNIConfig) AddNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) (types.Result, error) { result, err := c.addNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, nil, rt) @@ -529,7 +535,7 @@ func (c *CNIConfig) AddNetwork(ctx context.Context, net *NetworkConfig, rt *Runt } if err = c.cacheAdd(result, net.Bytes, net.Network.Name, rt); err != nil { - return nil, fmt.Errorf("failed to set network %q cached result: %v", net.Network.Name, err) + return nil, fmt.Errorf("failed to set network %q cached result: %w", net.Network.Name, err) } return result, nil @@ -546,7 +552,7 @@ func (c *CNIConfig) CheckNetwork(ctx context.Context, net *NetworkConfig, rt *Ru cachedResult, err := c.getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) if err != nil { - return fmt.Errorf("failed to get network %q cached result: %v", net.Network.Name, err) + return fmt.Errorf("failed to get network %q cached result: %w", net.Network.Name, err) } return c.checkNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt) } @@ -561,7 +567,7 @@ func (c *CNIConfig) DelNetwork(ctx context.Context, net *NetworkConfig, rt *Runt } else if gtet { cachedResult, err = c.getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) if err != nil { - return fmt.Errorf("failed to get network %q cached result: %v", net.Network.Name, err) + return fmt.Errorf("failed to get network %q cached result: %w", net.Network.Name, err) } } diff --git a/vendor/github.com/containernetworking/cni/libcni/conf.go b/vendor/github.com/containernetworking/cni/libcni/conf.go index d8920cf8c..d28135ff3 100644 --- a/vendor/github.com/containernetworking/cni/libcni/conf.go +++ b/vendor/github.com/containernetworking/cni/libcni/conf.go @@ -43,7 +43,7 @@ func (e NoConfigsFoundError) Error() string { func ConfFromBytes(bytes []byte) (*NetworkConfig, error) { conf := &NetworkConfig{Bytes: bytes} if err := json.Unmarshal(bytes, &conf.Network); err != nil { - return nil, fmt.Errorf("error parsing configuration: %s", err) + return nil, fmt.Errorf("error parsing configuration: %w", err) } if conf.Network.Type == "" { return nil, fmt.Errorf("error parsing configuration: missing 'type'") @@ -54,7 +54,7 @@ func ConfFromBytes(bytes []byte) (*NetworkConfig, error) { func ConfFromFile(filename string) (*NetworkConfig, error) { bytes, err := ioutil.ReadFile(filename) if err != nil { - return nil, fmt.Errorf("error reading %s: %s", filename, err) + return nil, fmt.Errorf("error reading %s: %w", filename, err) } return ConfFromBytes(bytes) } @@ -62,7 +62,7 @@ func ConfFromFile(filename string) (*NetworkConfig, error) { func ConfListFromBytes(bytes []byte) (*NetworkConfigList, error) { rawList := make(map[string]interface{}) if err := json.Unmarshal(bytes, &rawList); err != nil { - return nil, fmt.Errorf("error parsing configuration list: %s", err) + return nil, fmt.Errorf("error parsing configuration list: %w", err) } rawName, ok := rawList["name"] @@ -114,11 +114,11 @@ func ConfListFromBytes(bytes []byte) (*NetworkConfigList, error) { for i, conf := range plugins { newBytes, err := json.Marshal(conf) if err != nil { - return nil, fmt.Errorf("failed to marshal plugin config %d: %v", i, err) + return nil, fmt.Errorf("failed to marshal plugin config %d: %w", i, err) } netConf, err := ConfFromBytes(newBytes) if err != nil { - return nil, fmt.Errorf("failed to parse plugin config %d: %v", i, err) + return nil, fmt.Errorf("failed to parse plugin config %d: %w", i, err) } list.Plugins = append(list.Plugins, netConf) } @@ -129,7 +129,7 @@ func ConfListFromBytes(bytes []byte) (*NetworkConfigList, error) { func ConfListFromFile(filename string) (*NetworkConfigList, error) { bytes, err := ioutil.ReadFile(filename) if err != nil { - return nil, fmt.Errorf("error reading %s: %s", filename, err) + return nil, fmt.Errorf("error reading %s: %w", filename, err) } return ConfListFromBytes(bytes) } @@ -218,7 +218,7 @@ func InjectConf(original *NetworkConfig, newValues map[string]interface{}) (*Net config := make(map[string]interface{}) err := json.Unmarshal(original.Bytes, &config) if err != nil { - return nil, fmt.Errorf("unmarshal existing network bytes: %s", err) + return nil, fmt.Errorf("unmarshal existing network bytes: %w", err) } for key, value := range newValues { diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go b/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go index 8e6d30b82..e79bffe63 100644 --- a/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go @@ -20,6 +20,7 @@ import ( "os" "github.com/containernetworking/cni/pkg/types" + "github.com/containernetworking/cni/pkg/types/create" "github.com/containernetworking/cni/pkg/version" ) @@ -83,14 +84,7 @@ func ExecPluginWithResult(ctx context.Context, pluginPath string, netconf []byte return nil, err } - // Plugin must return result in same version as specified in netconf - versionDecoder := &version.ConfigDecoder{} - confVersion, err := versionDecoder.Decode(netconf) - if err != nil { - return nil, err - } - - return version.NewResult(confVersion, stdoutBytes) + return create.CreateFromBytes(stdoutBytes) } func ExecPluginWithoutResult(ctx context.Context, pluginPath string, netconf []byte, args CNIArgs, exec Exec) error { diff --git a/vendor/github.com/containernetworking/cni/pkg/types/020/types.go b/vendor/github.com/containernetworking/cni/pkg/types/020/types.go index 36f31678a..99b151ff2 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/020/types.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/020/types.go @@ -22,25 +22,47 @@ import ( "os" "github.com/containernetworking/cni/pkg/types" + convert "github.com/containernetworking/cni/pkg/types/internal" ) const ImplementedSpecVersion string = "0.2.0" -var SupportedVersions = []string{"", "0.1.0", ImplementedSpecVersion} +var supportedVersions = []string{"", "0.1.0", ImplementedSpecVersion} + +// Register converters for all versions less than the implemented spec version +func init() { + convert.RegisterConverter("0.1.0", []string{ImplementedSpecVersion}, convertFrom010) + convert.RegisterConverter(ImplementedSpecVersion, []string{"0.1.0"}, convertTo010) + + // Creator + convert.RegisterCreator(supportedVersions, NewResult) +} // Compatibility types for CNI version 0.1.0 and 0.2.0 +// NewResult creates a new Result object from JSON data. The JSON data +// must be compatible with the CNI versions implemented by this type. func NewResult(data []byte) (types.Result, error) { result := &Result{} if err := json.Unmarshal(data, result); err != nil { return nil, err } - return result, nil + for _, v := range supportedVersions { + if result.CNIVersion == v { + if result.CNIVersion == "" { + result.CNIVersion = "0.1.0" + } + return result, nil + } + } + return nil, fmt.Errorf("result type supports %v but unmarshalled CNIVersion is %q", + supportedVersions, result.CNIVersion) } +// GetResult converts the given Result object to the ImplementedSpecVersion +// and returns the concrete type or an error func GetResult(r types.Result) (*Result, error) { - // We expect version 0.1.0/0.2.0 results - result020, err := r.GetAsVersion(ImplementedSpecVersion) + result020, err := convert.Convert(r, ImplementedSpecVersion) if err != nil { return nil, err } @@ -51,6 +73,32 @@ func GetResult(r types.Result) (*Result, error) { return result, nil } +func convertFrom010(from types.Result, toVersion string) (types.Result, error) { + if toVersion != "0.2.0" { + panic("only converts to version 0.2.0") + } + fromResult := from.(*Result) + return &Result{ + CNIVersion: ImplementedSpecVersion, + IP4: fromResult.IP4.Copy(), + IP6: fromResult.IP6.Copy(), + DNS: *fromResult.DNS.Copy(), + }, nil +} + +func convertTo010(from types.Result, toVersion string) (types.Result, error) { + if toVersion != "0.1.0" { + panic("only converts to version 0.1.0") + } + fromResult := from.(*Result) + return &Result{ + CNIVersion: "0.1.0", + IP4: fromResult.IP4.Copy(), + IP6: fromResult.IP6.Copy(), + DNS: *fromResult.DNS.Copy(), + }, nil +} + // Result is what gets returned from the plugin (via stdout) to the caller type Result struct { CNIVersion string `json:"cniVersion,omitempty"` @@ -60,17 +108,16 @@ type Result struct { } func (r *Result) Version() string { - return ImplementedSpecVersion + return r.CNIVersion } func (r *Result) GetAsVersion(version string) (types.Result, error) { - for _, supportedVersion := range SupportedVersions { - if version == supportedVersion { - r.CNIVersion = version - return r, nil - } + // If the creator of the result did not set the CNIVersion, assume it + // should be the highest spec version implemented by this Result + if r.CNIVersion == "" { + r.CNIVersion = ImplementedSpecVersion } - return nil, fmt.Errorf("cannot convert version %q to %s", SupportedVersions, version) + return convert.Convert(r, version) } func (r *Result) Print() error { @@ -93,6 +140,22 @@ type IPConfig struct { Routes []types.Route } +func (i *IPConfig) Copy() *IPConfig { + if i == nil { + return nil + } + + var routes []types.Route + for _, fromRoute := range i.Routes { + routes = append(routes, *fromRoute.Copy()) + } + return &IPConfig{ + IP: i.IP, + Gateway: i.Gateway, + Routes: routes, + } +} + // net.IPNet is not JSON (un)marshallable so this duality is needed // for our custom IPNet type diff --git a/vendor/github.com/containernetworking/cni/pkg/types/040/types.go b/vendor/github.com/containernetworking/cni/pkg/types/040/types.go new file mode 100644 index 000000000..3633b0eaa --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/040/types.go @@ -0,0 +1,306 @@ +// 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 types040 + +import ( + "encoding/json" + "fmt" + "io" + "net" + "os" + + "github.com/containernetworking/cni/pkg/types" + types020 "github.com/containernetworking/cni/pkg/types/020" + convert "github.com/containernetworking/cni/pkg/types/internal" +) + +const ImplementedSpecVersion string = "0.4.0" + +var supportedVersions = []string{"0.3.0", "0.3.1", ImplementedSpecVersion} + +// Register converters for all versions less than the implemented spec version +func init() { + // Up-converters + convert.RegisterConverter("0.1.0", supportedVersions, convertFrom02x) + convert.RegisterConverter("0.2.0", supportedVersions, convertFrom02x) + convert.RegisterConverter("0.3.0", supportedVersions, convertInternal) + convert.RegisterConverter("0.3.1", supportedVersions, convertInternal) + + // Down-converters + convert.RegisterConverter("0.4.0", []string{"0.3.0", "0.3.1"}, convertInternal) + convert.RegisterConverter("0.4.0", []string{"0.1.0", "0.2.0"}, convertTo02x) + convert.RegisterConverter("0.3.1", []string{"0.1.0", "0.2.0"}, convertTo02x) + convert.RegisterConverter("0.3.0", []string{"0.1.0", "0.2.0"}, convertTo02x) + + // Creator + convert.RegisterCreator(supportedVersions, NewResult) +} + +func NewResult(data []byte) (types.Result, error) { + result := &Result{} + if err := json.Unmarshal(data, result); err != nil { + return nil, err + } + for _, v := range supportedVersions { + if result.CNIVersion == v { + return result, nil + } + } + return nil, fmt.Errorf("result type supports %v but unmarshalled CNIVersion is %q", + supportedVersions, result.CNIVersion) +} + +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 +} + +func NewResultFromResult(result types.Result) (*Result, error) { + newResult, err := convert.Convert(result, ImplementedSpecVersion) + if err != nil { + return nil, err + } + return newResult.(*Result), nil +} + +// 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"` +} + +func convert020IPConfig(from *types020.IPConfig, ipVersion string) *IPConfig { + return &IPConfig{ + Version: ipVersion, + Address: from.IP, + Gateway: from.Gateway, + } +} + +func convertFrom02x(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*types020.Result) + toResult := &Result{ + CNIVersion: toVersion, + DNS: *fromResult.DNS.Copy(), + Routes: []*types.Route{}, + } + if fromResult.IP4 != nil { + toResult.IPs = append(toResult.IPs, convert020IPConfig(fromResult.IP4, "4")) + for _, fromRoute := range fromResult.IP4.Routes { + toResult.Routes = append(toResult.Routes, fromRoute.Copy()) + } + } + + if fromResult.IP6 != nil { + toResult.IPs = append(toResult.IPs, convert020IPConfig(fromResult.IP6, "6")) + for _, fromRoute := range fromResult.IP6.Routes { + toResult.Routes = append(toResult.Routes, fromRoute.Copy()) + } + } + + return toResult, nil +} + +func convertInternal(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*Result) + toResult := &Result{ + CNIVersion: toVersion, + DNS: *fromResult.DNS.Copy(), + Routes: []*types.Route{}, + } + for _, fromIntf := range fromResult.Interfaces { + toResult.Interfaces = append(toResult.Interfaces, fromIntf.Copy()) + } + for _, fromIPC := range fromResult.IPs { + toResult.IPs = append(toResult.IPs, fromIPC.Copy()) + } + for _, fromRoute := range fromResult.Routes { + toResult.Routes = append(toResult.Routes, fromRoute.Copy()) + } + return toResult, nil +} + +func convertTo02x(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*Result) + toResult := &types020.Result{ + CNIVersion: toVersion, + DNS: *fromResult.DNS.Copy(), + } + + for _, fromIP := range fromResult.IPs { + // Only convert the first IP address of each version as 0.2.0 + // and earlier cannot handle multiple IP addresses + if fromIP.Version == "4" && toResult.IP4 == nil { + toResult.IP4 = &types020.IPConfig{ + IP: fromIP.Address, + Gateway: fromIP.Gateway, + } + } else if fromIP.Version == "6" && toResult.IP6 == nil { + toResult.IP6 = &types020.IPConfig{ + IP: fromIP.Address, + Gateway: fromIP.Gateway, + } + } + if toResult.IP4 != nil && toResult.IP6 != nil { + break + } + } + + for _, fromRoute := range fromResult.Routes { + is4 := fromRoute.Dst.IP.To4() != nil + if is4 && toResult.IP4 != nil { + toResult.IP4.Routes = append(toResult.IP4.Routes, types.Route{ + Dst: fromRoute.Dst, + GW: fromRoute.GW, + }) + } else if !is4 && toResult.IP6 != nil { + toResult.IP6.Routes = append(toResult.IP6.Routes, types.Route{ + Dst: fromRoute.Dst, + GW: fromRoute.GW, + }) + } + } + + // 0.2.0 and earlier require at least one IP address in the Result + if toResult.IP4 == nil && toResult.IP6 == nil { + return nil, fmt.Errorf("cannot convert: no valid IP addresses") + } + + return toResult, nil +} + +func (r *Result) Version() string { + return r.CNIVersion +} + +func (r *Result) GetAsVersion(version string) (types.Result, error) { + // If the creator of the result did not set the CNIVersion, assume it + // should be the highest spec version implemented by this Result + if r.CNIVersion == "" { + r.CNIVersion = ImplementedSpecVersion + } + return convert.Convert(r, 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 +} + +// 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) +} + +func (i *Interface) Copy() *Interface { + if i == nil { + return nil + } + newIntf := *i + return &newIntf +} + +// 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) +} + +func (i *IPConfig) Copy() *IPConfig { + if i == nil { + return nil + } + + ipc := &IPConfig{ + Version: i.Version, + Address: i.Address, + Gateway: i.Gateway, + } + if i.Interface != nil { + intf := *i.Interface + ipc.Interface = &intf + } + return ipc +} + +// 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/100/types.go b/vendor/github.com/containernetworking/cni/pkg/types/100/types.go new file mode 100644 index 000000000..0e1e8b857 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/100/types.go @@ -0,0 +1,307 @@ +// 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 types100 + +import ( + "encoding/json" + "fmt" + "io" + "net" + "os" + + "github.com/containernetworking/cni/pkg/types" + types040 "github.com/containernetworking/cni/pkg/types/040" + convert "github.com/containernetworking/cni/pkg/types/internal" +) + +const ImplementedSpecVersion string = "1.0.0" + +var supportedVersions = []string{ImplementedSpecVersion} + +// Register converters for all versions less than the implemented spec version +func init() { + // Up-converters + convert.RegisterConverter("0.1.0", supportedVersions, convertFrom02x) + convert.RegisterConverter("0.2.0", supportedVersions, convertFrom02x) + convert.RegisterConverter("0.3.0", supportedVersions, convertFrom04x) + convert.RegisterConverter("0.3.1", supportedVersions, convertFrom04x) + convert.RegisterConverter("0.4.0", supportedVersions, convertFrom04x) + + // Down-converters + convert.RegisterConverter("1.0.0", []string{"0.3.0", "0.3.1", "0.4.0"}, convertTo04x) + convert.RegisterConverter("1.0.0", []string{"0.1.0", "0.2.0"}, convertTo02x) + + // Creator + convert.RegisterCreator(supportedVersions, NewResult) +} + +func NewResult(data []byte) (types.Result, error) { + result := &Result{} + if err := json.Unmarshal(data, result); err != nil { + return nil, err + } + for _, v := range supportedVersions { + if result.CNIVersion == v { + return result, nil + } + } + return nil, fmt.Errorf("result type supports %v but unmarshalled CNIVersion is %q", + supportedVersions, result.CNIVersion) +} + +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 +} + +func NewResultFromResult(result types.Result) (*Result, error) { + newResult, err := convert.Convert(result, ImplementedSpecVersion) + if err != nil { + return nil, err + } + return newResult.(*Result), nil +} + +// 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"` +} + +func convertFrom02x(from types.Result, toVersion string) (types.Result, error) { + result040, err := convert.Convert(from, "0.4.0") + if err != nil { + return nil, err + } + result100, err := convertFrom04x(result040, ImplementedSpecVersion) + if err != nil { + return nil, err + } + return result100, nil +} + +func convertIPConfigFrom040(from *types040.IPConfig) *IPConfig { + to := &IPConfig{ + Address: from.Address, + Gateway: from.Gateway, + } + if from.Interface != nil { + intf := *from.Interface + to.Interface = &intf + } + return to +} + +func convertInterfaceFrom040(from *types040.Interface) *Interface { + return &Interface{ + Name: from.Name, + Mac: from.Mac, + Sandbox: from.Sandbox, + } +} + +func convertFrom04x(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*types040.Result) + toResult := &Result{ + CNIVersion: toVersion, + DNS: *fromResult.DNS.Copy(), + Routes: []*types.Route{}, + } + for _, fromIntf := range fromResult.Interfaces { + toResult.Interfaces = append(toResult.Interfaces, convertInterfaceFrom040(fromIntf)) + } + for _, fromIPC := range fromResult.IPs { + toResult.IPs = append(toResult.IPs, convertIPConfigFrom040(fromIPC)) + } + for _, fromRoute := range fromResult.Routes { + toResult.Routes = append(toResult.Routes, fromRoute.Copy()) + } + return toResult, nil +} + +func convertIPConfigTo040(from *IPConfig) *types040.IPConfig { + version := "6" + if from.Address.IP.To4() != nil { + version = "4" + } + to := &types040.IPConfig{ + Version: version, + Address: from.Address, + Gateway: from.Gateway, + } + if from.Interface != nil { + intf := *from.Interface + to.Interface = &intf + } + return to +} + +func convertInterfaceTo040(from *Interface) *types040.Interface { + return &types040.Interface{ + Name: from.Name, + Mac: from.Mac, + Sandbox: from.Sandbox, + } +} + +func convertTo04x(from types.Result, toVersion string) (types.Result, error) { + fromResult := from.(*Result) + toResult := &types040.Result{ + CNIVersion: toVersion, + DNS: *fromResult.DNS.Copy(), + Routes: []*types.Route{}, + } + for _, fromIntf := range fromResult.Interfaces { + toResult.Interfaces = append(toResult.Interfaces, convertInterfaceTo040(fromIntf)) + } + for _, fromIPC := range fromResult.IPs { + toResult.IPs = append(toResult.IPs, convertIPConfigTo040(fromIPC)) + } + for _, fromRoute := range fromResult.Routes { + toResult.Routes = append(toResult.Routes, fromRoute.Copy()) + } + return toResult, nil +} + +func convertTo02x(from types.Result, toVersion string) (types.Result, error) { + // First convert to 0.4.0 + result040, err := convertTo04x(from, "0.4.0") + if err != nil { + return nil, err + } + result02x, err := convert.Convert(result040, toVersion) + if err != nil { + return nil, err + } + return result02x, nil +} + +func (r *Result) Version() string { + return r.CNIVersion +} + +func (r *Result) GetAsVersion(version string) (types.Result, error) { + // If the creator of the result did not set the CNIVersion, assume it + // should be the highest spec version implemented by this Result + if r.CNIVersion == "" { + r.CNIVersion = ImplementedSpecVersion + } + return convert.Convert(r, 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 +} + +// 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) +} + +func (i *Interface) Copy() *Interface { + if i == nil { + return nil + } + newIntf := *i + return &newIntf +} + +// 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 { + // Index into Result structs Interfaces list + Interface *int + Address net.IPNet + Gateway net.IP +} + +func (i *IPConfig) String() string { + return fmt.Sprintf("%+v", *i) +} + +func (i *IPConfig) Copy() *IPConfig { + if i == nil { + return nil + } + + ipc := &IPConfig{ + Address: i.Address, + Gateway: i.Gateway, + } + if i.Interface != nil { + intf := *i.Interface + ipc.Interface = &intf + } + return ipc +} + +// JSON (un)marshallable types +type ipConfig struct { + Interface *int `json:"interface,omitempty"` + Address types.IPNet `json:"address"` + Gateway net.IP `json:"gateway,omitempty"` +} + +func (c *IPConfig) MarshalJSON() ([]byte, error) { + ipc := ipConfig{ + 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.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/args.go b/vendor/github.com/containernetworking/cni/pkg/types/args.go index 4eac64899..7516f03ef 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/args.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/args.go @@ -91,16 +91,26 @@ func LoadArgs(args string, container interface{}) error { unknownArgs = append(unknownArgs, pair) continue } - keyFieldIface := keyField.Addr().Interface() - u, ok := keyFieldIface.(encoding.TextUnmarshaler) + + var keyFieldInterface interface{} + switch { + case keyField.Kind() == reflect.Ptr: + keyField.Set(reflect.New(keyField.Type().Elem())) + keyFieldInterface = keyField.Interface() + case keyField.CanAddr() && keyField.Addr().CanInterface(): + keyFieldInterface = keyField.Addr().Interface() + default: + return UnmarshalableArgsError{fmt.Errorf("field '%s' has no valid interface", keyString)} + } + u, ok := keyFieldInterface.(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))} + keyString, reflect.TypeOf(keyFieldInterface))} } err := u.UnmarshalText([]byte(valueString)) if err != nil { - return fmt.Errorf("ARGS: error parsing value of pair %q: %v)", pair, err) + return fmt.Errorf("ARGS: error parsing value of pair %q: %w", pair, err) } } diff --git a/vendor/github.com/containernetworking/cni/pkg/types/create/create.go b/vendor/github.com/containernetworking/cni/pkg/types/create/create.go new file mode 100644 index 000000000..ed28b33e8 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/create/create.go @@ -0,0 +1,56 @@ +// 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 create + +import ( + "encoding/json" + "fmt" + + "github.com/containernetworking/cni/pkg/types" + convert "github.com/containernetworking/cni/pkg/types/internal" +) + +// DecodeVersion returns the CNI version from CNI configuration or result JSON, +// or an error if the operation could not be performed. +func DecodeVersion(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: %w", err) + } + if conf.CNIVersion == "" { + return "0.1.0", nil + } + return conf.CNIVersion, nil +} + +// Create creates a CNI Result using the given JSON with the expected +// version, or an error if the creation could not be performed +func Create(version string, bytes []byte) (types.Result, error) { + return convert.Create(version, bytes) +} + +// CreateFromBytes creates a CNI Result from the given JSON, automatically +// detecting the CNI spec version of the result. An error is returned if the +// operation could not be performed. +func CreateFromBytes(bytes []byte) (types.Result, error) { + version, err := DecodeVersion(bytes) + if err != nil { + return nil, err + } + return convert.Create(version, bytes) +} 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 754cc6e72..000000000 --- a/vendor/github.com/containernetworking/cni/pkg/types/current/types.go +++ /dev/null @@ -1,276 +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 -} - -// 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/internal/convert.go b/vendor/github.com/containernetworking/cni/pkg/types/internal/convert.go new file mode 100644 index 000000000..bdbe4b0a5 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/internal/convert.go @@ -0,0 +1,92 @@ +// 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 convert + +import ( + "fmt" + + "github.com/containernetworking/cni/pkg/types" +) + +// ConvertFn should convert from the given arbitrary Result type into a +// Result implementing CNI specification version passed in toVersion. +// The function is guaranteed to be passed a Result type matching the +// fromVersion it was registered with, and is guaranteed to be +// passed a toVersion matching one of the toVersions it was registered with. +type ConvertFn func(from types.Result, toVersion string) (types.Result, error) + +type converter struct { + // fromVersion is the CNI Result spec version that convertFn accepts + fromVersion string + // toVersions is a list of versions that convertFn can convert to + toVersions []string + convertFn ConvertFn +} + +var converters []*converter + +func findConverter(fromVersion, toVersion string) *converter { + for _, c := range converters { + if c.fromVersion == fromVersion { + for _, v := range c.toVersions { + if v == toVersion { + return c + } + } + } + } + return nil +} + +// Convert converts a CNI Result to the requested CNI specification version, +// or returns an error if the conversion could not be performed or failed +func Convert(from types.Result, toVersion string) (types.Result, error) { + if toVersion == "" { + toVersion = "0.1.0" + } + + fromVersion := from.Version() + + // Shortcut for same version + if fromVersion == toVersion { + return from, nil + } + + // Otherwise find the right converter + c := findConverter(fromVersion, toVersion) + if c == nil { + return nil, fmt.Errorf("no converter for CNI result version %s to %s", + fromVersion, toVersion) + } + return c.convertFn(from, toVersion) +} + +// RegisterConverter registers a CNI Result converter. SHOULD NOT BE CALLED +// EXCEPT FROM CNI ITSELF. +func RegisterConverter(fromVersion string, toVersions []string, convertFn ConvertFn) { + // Make sure there is no converter already registered for these + // from and to versions + for _, v := range toVersions { + if findConverter(fromVersion, v) != nil { + panic(fmt.Sprintf("converter already registered for %s to %s", + fromVersion, v)) + } + } + converters = append(converters, &converter{ + fromVersion: fromVersion, + toVersions: toVersions, + convertFn: convertFn, + }) +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/internal/create.go b/vendor/github.com/containernetworking/cni/pkg/types/internal/create.go new file mode 100644 index 000000000..963630912 --- /dev/null +++ b/vendor/github.com/containernetworking/cni/pkg/types/internal/create.go @@ -0,0 +1,66 @@ +// 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 convert + +import ( + "fmt" + + "github.com/containernetworking/cni/pkg/types" +) + +type ResultFactoryFunc func([]byte) (types.Result, error) + +type creator struct { + // CNI Result spec versions that createFn can create a Result for + versions []string + createFn ResultFactoryFunc +} + +var creators []*creator + +func findCreator(version string) *creator { + for _, c := range creators { + for _, v := range c.versions { + if v == version { + return c + } + } + } + return nil +} + +// Create creates a CNI Result using the given JSON, or an error if the creation +// could not be performed +func Create(version string, bytes []byte) (types.Result, error) { + if c := findCreator(version); c != nil { + return c.createFn(bytes) + } + return nil, fmt.Errorf("unsupported CNI result version %q", version) +} + +// RegisterCreator registers a CNI Result creator. SHOULD NOT BE CALLED +// EXCEPT FROM CNI ITSELF. +func RegisterCreator(versions []string, createFn ResultFactoryFunc) { + // Make sure there is no creator already registered for these versions + for _, v := range versions { + if findCreator(v) != nil { + panic(fmt.Sprintf("creator already registered for %s", v)) + } + } + creators = append(creators, &creator{ + versions: versions, + createFn: createFn, + }) +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/types.go b/vendor/github.com/containernetworking/cni/pkg/types/types.go index 3fa757a5d..fba17dfc0 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/types.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/types.go @@ -83,8 +83,6 @@ type NetConfList struct { 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 @@ -118,6 +116,24 @@ type DNS struct { Options []string `json:"options,omitempty"` } +func (d *DNS) Copy() *DNS { + if d == nil { + return nil + } + + to := &DNS{Domain: d.Domain} + for _, ns := range d.Nameservers { + to.Nameservers = append(to.Nameservers, ns) + } + for _, s := range d.Search { + to.Search = append(to.Search, s) + } + for _, o := range d.Options { + to.Options = append(to.Options, o) + } + return to +} + type Route struct { Dst net.IPNet GW net.IP @@ -127,6 +143,17 @@ func (r *Route) String() string { return fmt.Sprintf("%+v", *r) } +func (r *Route) Copy() *Route { + if r == nil { + return nil + } + + return &Route{ + Dst: r.Dst, + GW: r.GW, + } +} + // Well known error codes // see https://github.com/containernetworking/cni/blob/master/SPEC.md#well-known-error-codes const ( diff --git a/vendor/github.com/containernetworking/cni/pkg/version/conf.go b/vendor/github.com/containernetworking/cni/pkg/version/conf.go index 3cca58bbe..808c33b83 100644 --- a/vendor/github.com/containernetworking/cni/pkg/version/conf.go +++ b/vendor/github.com/containernetworking/cni/pkg/version/conf.go @@ -15,23 +15,12 @@ package version import ( - "encoding/json" - "fmt" + "github.com/containernetworking/cni/pkg/types/create" ) // 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 + return create.DecodeVersion(jsonBytes) } diff --git a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go index 1df427243..d4bc9d169 100644 --- a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go +++ b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go @@ -68,7 +68,7 @@ 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) + return nil, fmt.Errorf("decoding version info: %w", err) } if info.CNIVersion_ == "" { return nil, fmt.Errorf("decoding version info: missing field cniVersion") @@ -97,20 +97,20 @@ func ParseVersion(version string) (int, int, int, error) { 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) + return -1, -1, -1, fmt.Errorf("failed to convert major version part %q: %w", 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) + return -1, -1, -1, fmt.Errorf("failed to convert minor version part %q: %w", 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 -1, -1, -1, fmt.Errorf("failed to convert micro version part %q: %w", parts[2], err) } } diff --git a/vendor/github.com/containernetworking/cni/pkg/version/version.go b/vendor/github.com/containernetworking/cni/pkg/version/version.go index 8f3508e61..1326f8038 100644 --- a/vendor/github.com/containernetworking/cni/pkg/version/version.go +++ b/vendor/github.com/containernetworking/cni/pkg/version/version.go @@ -19,13 +19,13 @@ import ( "fmt" "github.com/containernetworking/cni/pkg/types" - "github.com/containernetworking/cni/pkg/types/020" - "github.com/containernetworking/cni/pkg/types/current" + types100 "github.com/containernetworking/cni/pkg/types/100" + "github.com/containernetworking/cni/pkg/types/create" ) // Current reports the version of the CNI spec implemented by this library func Current() string { - return "0.4.0" + return types100.ImplementedSpecVersion } // Legacy PluginInfo describes a plugin that is backwards compatible with the @@ -36,29 +36,28 @@ func Current() string { // Any future CNI spec versions which meet this definition should be added to // this list. var Legacy = PluginSupports("0.1.0", "0.2.0") -var All = PluginSupports("0.1.0", "0.2.0", "0.3.0", "0.3.1", "0.4.0") +var All = PluginSupports("0.1.0", "0.2.0", "0.3.0", "0.3.1", "0.4.0", "1.0.0") -var resultFactories = []struct { - supportedVersions []string - newResult types.ResultFactoryFunc -}{ - {current.SupportedVersions, current.NewResult}, - {types020.SupportedVersions, types020.NewResult}, +// VersionsFrom returns a list of versions starting from min, inclusive +func VersionsStartingFrom(min string) PluginInfo { + out := []string{} + // cheat, just assume ordered + ok := false + for _, v := range All.SupportedVersions() { + if !ok && v == min { + ok = true + } + if ok { + out = append(out, v) + } + } + return PluginSupports(out...) } // 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) + return create.Create(version, resultBytes) } // ParsePrevResult parses a prevResult in a NetConf structure and sets @@ -68,15 +67,22 @@ func ParsePrevResult(conf *types.NetConf) error { return nil } + // Prior to 1.0.0, Result types may not marshal a CNIVersion. Since the + // result version must match the config version, if the Result's version + // is empty, inject the config version. + if ver, ok := conf.RawPrevResult["CNIVersion"]; !ok || ver == "" { + conf.RawPrevResult["CNIVersion"] = conf.CNIVersion + } + resultBytes, err := json.Marshal(conf.RawPrevResult) if err != nil { - return fmt.Errorf("could not serialize prevResult: %v", err) + return fmt.Errorf("could not serialize prevResult: %w", err) } conf.RawPrevResult = nil - conf.PrevResult, err = NewResult(conf.CNIVersion, resultBytes) + conf.PrevResult, err = create.Create(conf.CNIVersion, resultBytes) if err != nil { - return fmt.Errorf("could not parse prevResult: %v", err) + return fmt.Errorf("could not parse prevResult: %w", err) } return nil |