Vendor github.com/containernetworking/cni libcni and pkg file needed for CHECK
Update plugins/tests to deal with changes made to this vendor'ed code
This commit is contained in:
Michael Cambria
265
vendor/github.com/containernetworking/cni/libcni/api.go
generated
vendored
265
vendor/github.com/containernetworking/cni/libcni/api.go
generated
vendored
@ -15,6 +15,7 @@
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package libcni
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import (
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"context"
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"encoding/json"
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"fmt"
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"io/ioutil"
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@ -57,20 +58,25 @@ type NetworkConfig struct {
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}
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type NetworkConfigList struct {
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Name string
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CNIVersion string
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Plugins []*NetworkConfig
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Bytes []byte
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Name string
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CNIVersion string
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DisableCheck bool
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Plugins []*NetworkConfig
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Bytes []byte
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}
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type CNI interface {
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AddNetworkList(net *NetworkConfigList, rt *RuntimeConf) (types.Result, error)
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GetNetworkList(net *NetworkConfigList, rt *RuntimeConf) (types.Result, error)
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DelNetworkList(net *NetworkConfigList, rt *RuntimeConf) error
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AddNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) (types.Result, error)
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CheckNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) error
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DelNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) error
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AddNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error)
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GetNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error)
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DelNetwork(net *NetworkConfig, rt *RuntimeConf) error
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AddNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) (types.Result, error)
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CheckNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error
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DelNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error
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GetNetworkCachedResult(net *NetworkConfig, rt *RuntimeConf) (types.Result, error)
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ValidateNetworkList(ctx context.Context, net *NetworkConfigList) ([]string, error)
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ValidateNetwork(ctx context.Context, net *NetworkConfig) ([]string, error)
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}
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type CNIConfig struct {
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@ -158,40 +164,12 @@ func (c *CNIConfig) ensureExec() invoke.Exec {
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return c.exec
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}
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func (c *CNIConfig) addOrGetNetwork(command, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (types.Result, error) {
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c.ensureExec()
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pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path)
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if err != nil {
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return nil, err
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}
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newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt)
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if err != nil {
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return nil, err
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}
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return invoke.ExecPluginWithResult(pluginPath, newConf.Bytes, c.args(command, rt), c.exec)
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}
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// Note that only GET requests should pass an initial prevResult
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func (c *CNIConfig) addOrGetNetworkList(command string, prevResult types.Result, list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) {
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var err error
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for _, net := range list.Plugins {
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prevResult, err = c.addOrGetNetwork(command, list.Name, list.CNIVersion, net, prevResult, rt)
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if err != nil {
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return nil, err
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}
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}
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return prevResult, nil
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}
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func getResultCacheFilePath(netName string, rt *RuntimeConf) string {
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cacheDir := rt.CacheDir
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if cacheDir == "" {
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cacheDir = CacheDir
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}
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return filepath.Join(cacheDir, "results", fmt.Sprintf("%s-%s", netName, rt.ContainerID))
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return filepath.Join(cacheDir, "results", fmt.Sprintf("%s-%s-%s", netName, rt.ContainerID, rt.IfName))
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}
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func setCachedResult(result types.Result, netName string, rt *RuntimeConf) error {
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@ -243,37 +221,52 @@ func getCachedResult(netName, cniVersion string, rt *RuntimeConf) (types.Result,
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return result, err
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}
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// AddNetworkList executes a sequence of plugins with the ADD command
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func (c *CNIConfig) AddNetworkList(list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) {
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result, err := c.addOrGetNetworkList("ADD", nil, list, rt)
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// GetNetworkListCachedResult returns the cached Result of the previous
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// previous AddNetworkList() operation for a network list, or an error.
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func (c *CNIConfig) GetNetworkListCachedResult(list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) {
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return getCachedResult(list.Name, list.CNIVersion, rt)
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}
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// GetNetworkCachedResult returns the cached Result of the previous
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// previous AddNetwork() operation for a network, or an error.
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func (c *CNIConfig) GetNetworkCachedResult(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) {
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return getCachedResult(net.Network.Name, net.Network.CNIVersion, rt)
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}
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func (c *CNIConfig) addNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (types.Result, error) {
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c.ensureExec()
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pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path)
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if err != nil {
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return nil, err
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}
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newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt)
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if err != nil {
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return nil, err
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}
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return invoke.ExecPluginWithResult(ctx, pluginPath, newConf.Bytes, c.args("ADD", rt), c.exec)
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}
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// AddNetworkList executes a sequence of plugins with the ADD command
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func (c *CNIConfig) AddNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) {
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var err error
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var result types.Result
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for _, net := range list.Plugins {
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result, err = c.addNetwork(ctx, list.Name, list.CNIVersion, net, result, rt)
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if err != nil {
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return nil, err
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}
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}
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if err = setCachedResult(result, list.Name, rt); err != nil {
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return nil, fmt.Errorf("failed to set network '%s' cached result: %v", list.Name, err)
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return nil, fmt.Errorf("failed to set network %q cached result: %v", list.Name, err)
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}
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return result, nil
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}
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// GetNetworkList executes a sequence of plugins with the GET command
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func (c *CNIConfig) GetNetworkList(list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) {
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// GET was added in CNI spec version 0.4.0 and higher
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if gtet, err := version.GreaterThanOrEqualTo(list.CNIVersion, "0.4.0"); err != nil {
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return nil, err
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} else if !gtet {
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return nil, fmt.Errorf("configuration version %q does not support the GET command", list.CNIVersion)
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}
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cachedResult, err := getCachedResult(list.Name, list.CNIVersion, rt)
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if err != nil {
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return nil, fmt.Errorf("failed to get network '%s' cached result: %v", list.Name, err)
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}
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return c.addOrGetNetworkList("GET", cachedResult, list, rt)
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}
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func (c *CNIConfig) delNetwork(name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) error {
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func (c *CNIConfig) checkNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) error {
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c.ensureExec()
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pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path)
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if err != nil {
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@ -285,11 +278,53 @@ func (c *CNIConfig) delNetwork(name, cniVersion string, net *NetworkConfig, prev
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return err
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}
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return invoke.ExecPluginWithoutResult(pluginPath, newConf.Bytes, c.args("DEL", rt), c.exec)
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return invoke.ExecPluginWithoutResult(ctx, pluginPath, newConf.Bytes, c.args("CHECK", rt), c.exec)
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}
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// CheckNetworkList executes a sequence of plugins with the CHECK command
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func (c *CNIConfig) CheckNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) error {
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// CHECK was added in CNI spec version 0.4.0 and higher
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if gtet, err := version.GreaterThanOrEqualTo(list.CNIVersion, "0.4.0"); err != nil {
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return err
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} else if !gtet {
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return fmt.Errorf("configuration version %q does not support the CHECK command", list.CNIVersion)
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}
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if list.DisableCheck {
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return nil
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}
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cachedResult, err := getCachedResult(list.Name, list.CNIVersion, rt)
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if err != nil {
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return fmt.Errorf("failed to get network %q cached result: %v", list.Name, err)
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}
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for _, net := range list.Plugins {
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if err := c.checkNetwork(ctx, list.Name, list.CNIVersion, net, cachedResult, rt); err != nil {
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return err
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}
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}
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return nil
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}
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func (c *CNIConfig) delNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) error {
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c.ensureExec()
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pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path)
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if err != nil {
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return err
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}
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newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt)
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if err != nil {
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return err
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}
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return invoke.ExecPluginWithoutResult(ctx, pluginPath, newConf.Bytes, c.args("DEL", rt), c.exec)
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}
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// DelNetworkList executes a sequence of plugins with the DEL command
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func (c *CNIConfig) DelNetworkList(list *NetworkConfigList, rt *RuntimeConf) error {
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func (c *CNIConfig) DelNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) error {
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var cachedResult types.Result
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// Cached result on DEL was added in CNI spec version 0.4.0 and higher
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@ -298,13 +333,13 @@ func (c *CNIConfig) DelNetworkList(list *NetworkConfigList, rt *RuntimeConf) err
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} else if gtet {
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cachedResult, err = getCachedResult(list.Name, list.CNIVersion, rt)
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if err != nil {
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return fmt.Errorf("failed to get network '%s' cached result: %v", list.Name, err)
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return fmt.Errorf("failed to get network %q cached result: %v", list.Name, err)
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}
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}
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for i := len(list.Plugins) - 1; i >= 0; i-- {
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net := list.Plugins[i]
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if err := c.delNetwork(list.Name, list.CNIVersion, net, cachedResult, rt); err != nil {
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if err := c.delNetwork(ctx, list.Name, list.CNIVersion, net, cachedResult, rt); err != nil {
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return err
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}
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}
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@ -314,37 +349,37 @@ func (c *CNIConfig) DelNetworkList(list *NetworkConfigList, rt *RuntimeConf) err
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}
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// AddNetwork executes the plugin with the ADD command
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func (c *CNIConfig) AddNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) {
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result, err := c.addOrGetNetwork("ADD", net.Network.Name, net.Network.CNIVersion, net, nil, rt)
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func (c *CNIConfig) AddNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) (types.Result, error) {
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result, err := c.addNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, nil, rt)
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if err != nil {
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return nil, err
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}
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if err = setCachedResult(result, net.Network.Name, rt); err != nil {
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return nil, fmt.Errorf("failed to set network '%s' cached result: %v", net.Network.Name, err)
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return nil, fmt.Errorf("failed to set network %q cached result: %v", net.Network.Name, err)
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}
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return result, nil
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}
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// GetNetwork executes the plugin with the GET command
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func (c *CNIConfig) GetNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) {
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// GET was added in CNI spec version 0.4.0 and higher
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// CheckNetwork executes the plugin with the CHECK command
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func (c *CNIConfig) CheckNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error {
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// CHECK was added in CNI spec version 0.4.0 and higher
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if gtet, err := version.GreaterThanOrEqualTo(net.Network.CNIVersion, "0.4.0"); err != nil {
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return nil, err
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return err
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} else if !gtet {
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return nil, fmt.Errorf("configuration version %q does not support the GET command", net.Network.CNIVersion)
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return fmt.Errorf("configuration version %q does not support the CHECK command", net.Network.CNIVersion)
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}
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cachedResult, err := getCachedResult(net.Network.Name, net.Network.CNIVersion, rt)
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if err != nil {
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return nil, fmt.Errorf("failed to get network '%s' cached result: %v", net.Network.Name, err)
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return fmt.Errorf("failed to get network %q cached result: %v", net.Network.Name, err)
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}
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return c.addOrGetNetwork("GET", net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt)
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return c.checkNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt)
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}
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// DelNetwork executes the plugin with the DEL command
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func (c *CNIConfig) DelNetwork(net *NetworkConfig, rt *RuntimeConf) error {
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func (c *CNIConfig) DelNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error {
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var cachedResult types.Result
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// Cached result on DEL was added in CNI spec version 0.4.0 and higher
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@ -353,27 +388,99 @@ func (c *CNIConfig) DelNetwork(net *NetworkConfig, rt *RuntimeConf) error {
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} else if gtet {
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cachedResult, err = getCachedResult(net.Network.Name, net.Network.CNIVersion, rt)
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if err != nil {
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return fmt.Errorf("failed to get network '%s' cached result: %v", net.Network.Name, err)
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return fmt.Errorf("failed to get network %q cached result: %v", net.Network.Name, err)
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}
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}
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if err := c.delNetwork(net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt); err != nil {
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if err := c.delNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt); err != nil {
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return err
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}
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_ = delCachedResult(net.Network.Name, rt)
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return nil
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}
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// ValidateNetworkList checks that a configuration is reasonably valid.
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// - all the specified plugins exist on disk
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// - every plugin supports the desired version.
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//
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// Returns a list of all capabilities supported by the configuration, or error
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func (c *CNIConfig) ValidateNetworkList(ctx context.Context, list *NetworkConfigList) ([]string, error) {
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version := list.CNIVersion
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// holding map for seen caps (in case of duplicates)
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caps := map[string]interface{}{}
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errs := []error{}
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for _, net := range list.Plugins {
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if err := c.validatePlugin(ctx, net.Network.Type, version); err != nil {
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errs = append(errs, err)
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}
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for c, enabled := range net.Network.Capabilities {
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if !enabled {
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continue
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}
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caps[c] = struct{}{}
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}
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}
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if len(errs) > 0 {
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return nil, fmt.Errorf("%v", errs)
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}
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// make caps list
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cc := make([]string, 0, len(caps))
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for c := range caps {
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cc = append(cc, c)
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}
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return cc, nil
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}
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// ValidateNetwork checks that a configuration is reasonably valid.
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// It uses the same logic as ValidateNetworkList)
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// Returns a list of capabilities
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func (c *CNIConfig) ValidateNetwork(ctx context.Context, net *NetworkConfig) ([]string, error) {
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caps := []string{}
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for c, ok := range net.Network.Capabilities {
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if ok {
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caps = append(caps, c)
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}
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}
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if err := c.validatePlugin(ctx, net.Network.Type, net.Network.CNIVersion); err != nil {
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return nil, err
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}
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return caps, nil
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}
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// validatePlugin checks that an individual plugin's configuration is sane
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func (c *CNIConfig) validatePlugin(ctx context.Context, pluginName, expectedVersion string) error {
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pluginPath, err := invoke.FindInPath(pluginName, c.Path)
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if err != nil {
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return err
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}
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vi, err := invoke.GetVersionInfo(ctx, pluginPath, c.exec)
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if err != nil {
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return err
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}
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for _, vers := range vi.SupportedVersions() {
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if vers == expectedVersion {
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return nil
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}
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}
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return fmt.Errorf("plugin %s does not support config version %q", pluginName, expectedVersion)
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}
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// GetVersionInfo reports which versions of the CNI spec are supported by
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// the given plugin.
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func (c *CNIConfig) GetVersionInfo(pluginType string) (version.PluginInfo, error) {
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func (c *CNIConfig) GetVersionInfo(ctx context.Context, pluginType string) (version.PluginInfo, error) {
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c.ensureExec()
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pluginPath, err := c.exec.FindInPath(pluginType, c.Path)
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if err != nil {
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return nil, err
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}
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return invoke.GetVersionInfo(pluginPath, c.exec)
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return invoke.GetVersionInfo(ctx, pluginPath, c.exec)
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}
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// =====
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