diff options
Diffstat (limited to 'vendor/github.com/containernetworking/cni')
12 files changed, 296 insertions, 143 deletions
diff --git a/vendor/github.com/containernetworking/cni/README.md b/vendor/github.com/containernetworking/cni/README.md index 65ccda9f9..3968d908a 100644 --- a/vendor/github.com/containernetworking/cni/README.md +++ b/vendor/github.com/containernetworking/cni/README.md @@ -9,9 +9,9 @@ # Community Sync Meeting -There is a community sync meeting for users and developers every 1-2 months. The next meeting will help on a Google Hangout and the link is in the [agenda](https://docs.google.com/document/d/10ECyT2mBGewsJUcmYmS8QNo1AcNgy2ZIe2xS7lShYhE/edit?usp=sharing) (Notes from previous meeting are also in this doc). +There is a community sync meeting for users and developers every 1-2 months. The next meeting will help on a Google Hangout and the link is in the [agenda](https://docs.google.com/document/d/10ECyT2mBGewsJUcmYmS8QNo1AcNgy2ZIe2xS7lShYhE/edit?usp=sharing) (Notes from previous meeting are also in this doc). -The next meeting will be held on *Wednesday, October 4th* at *3:00pm UTC / 11:00am EDT / 8:00am PDT* [Add to Calendar](https://www.worldtimebuddy.com/?qm=1&lid=100,5,2643743,5391959&h=100&date=2017-10-04&sln=15-16). +The next meeting will be held on *Wednesday, January 30th, 2019* at *4:00pm UTC / 11:00am EDT / 8:00am PDT* [Add to Calendar](https://www.worldtimebuddy.com/?qm=1&lid=100,5,2643743,5391959&h=100&date=2019-01-30&sln=16-17). --- @@ -38,11 +38,13 @@ To avoid duplication, we think it is prudent to define a common interface betwee ## Who is using CNI? ### Container runtimes - [rkt - container engine](https://coreos.com/blog/rkt-cni-networking.html) -- [Kubernetes - a system to simplify container operations](http://kubernetes.io/docs/admin/network-plugins/) +- [Kubernetes - a system to simplify container operations](https://kubernetes.io/docs/admin/network-plugins/) - [OpenShift - Kubernetes with additional enterprise features](https://github.com/openshift/origin/blob/master/docs/openshift_networking_requirements.md) - [Cloud Foundry - a platform for cloud applications](https://github.com/cloudfoundry-incubator/cf-networking-release) - [Apache Mesos - a distributed systems kernel](https://github.com/apache/mesos/blob/master/docs/cni.md) - [Amazon ECS - a highly scalable, high performance container management service](https://aws.amazon.com/ecs/) +- [Singularity - container platform optimized for HPC, EPC, and AI](https://github.com/sylabs/singularity) +- [OpenSVC - orchestrator for legacy and containerized application stacks](https://docs.opensvc.com/latest/fr/agent.configure.cni.html) ### 3rd party plugins - [Project Calico - a layer 3 virtual network](https://github.com/projectcalico/calico-cni) @@ -61,6 +63,10 @@ To avoid duplication, we think it is prudent to define a common interface betwee - [Amazon ECS CNI Plugins - a collection of CNI Plugins to configure containers with Amazon EC2 elastic network interfaces (ENIs)](https://github.com/aws/amazon-ecs-cni-plugins) - [Bonding CNI - a Link aggregating plugin to address failover and high availability network](https://github.com/Intel-Corp/bond-cni) - [ovn-kubernetes - an container network plugin built on Open vSwitch (OVS) and Open Virtual Networking (OVN) with support for both Linux and Windows](https://github.com/openvswitch/ovn-kubernetes) +- [Juniper Contrail](https://www.juniper.net/cloud) / [TungstenFabric](https://tungstenfabric.io) - Provides overlay SDN solution, delivering multicloud networking, hybrid cloud networking, simultaneous overlay-underlay support, network policy enforcement, network isolation, service chaining and flexible load balancing +- [Knitter - a CNI plugin supporting multiple networking for Kubernetes](https://github.com/ZTE/Knitter) +- [DANM - a CNI-compliant networking solution for TelCo workloads running on Kubernetes](https://github.com/nokia/danm) +- [VMware NSX – a CNI plugin that enables automated NSX L2/L3 networking and L4/L7 Load Balancing; network isolation at the pod, node, and cluster level; and zero-trust security policy for your Kubernetes cluster.](https://docs.vmware.com/en/VMware-NSX-T/2.2/com.vmware.nsxt.ncp_kubernetes.doc/GUID-6AFA724E-BB62-4693-B95C-321E8DDEA7E1.html) The CNI team also maintains some [core plugins in a separate repository](https://github.com/containernetworking/plugins). @@ -74,7 +80,7 @@ If you intend to contribute to code or documentation, please read [CONTRIBUTING. ### Requirements -The CNI spec is language agnostic. To use the Go language libraries in this repository, you'll need a recent version of Go. Our [automated tests](https://travis-ci.org/containernetworking/cni/builds) cover Go versions 1.7 and 1.8. +The CNI spec is language agnostic. To use the Go language libraries in this repository, you'll need a recent version of Go. You can find the Go versions covered by our [automated tests](https://travis-ci.org/containernetworking/cni/builds) in [.travis.yaml](.travis.yml). ### Reference Plugins @@ -111,6 +117,7 @@ EOF $ cat >/etc/cni/net.d/99-loopback.conf <<EOF { "cniVersion": "0.2.0", + "name": "lo", "type": "loopback" } EOF @@ -122,7 +129,7 @@ Next, build the plugins: ```bash $ cd $GOPATH/src/github.com/containernetworking/plugins -$ ./build.sh +$ ./build_linux.sh # or build_windows.sh ``` Finally, execute a command (`ifconfig` in this example) in a private network namespace that has joined the `mynet` network: diff --git a/vendor/github.com/containernetworking/cni/libcni/api.go b/vendor/github.com/containernetworking/cni/libcni/api.go index d494e43d4..360733e74 100644 --- a/vendor/github.com/containernetworking/cni/libcni/api.go +++ b/vendor/github.com/containernetworking/cni/libcni/api.go @@ -15,6 +15,7 @@ package libcni import ( + "context" "encoding/json" "fmt" "io/ioutil" @@ -57,20 +58,25 @@ type NetworkConfig struct { } type NetworkConfigList struct { - Name string - CNIVersion string - Plugins []*NetworkConfig - Bytes []byte + Name string + CNIVersion string + DisableCheck bool + Plugins []*NetworkConfig + Bytes []byte } type CNI interface { - AddNetworkList(net *NetworkConfigList, rt *RuntimeConf) (types.Result, error) - GetNetworkList(net *NetworkConfigList, rt *RuntimeConf) (types.Result, error) - DelNetworkList(net *NetworkConfigList, rt *RuntimeConf) error + AddNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) (types.Result, error) + CheckNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) error + DelNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) error - AddNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) - GetNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) - DelNetwork(net *NetworkConfig, rt *RuntimeConf) error + AddNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) (types.Result, error) + CheckNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error + DelNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error + GetNetworkCachedResult(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) + + ValidateNetworkList(ctx context.Context, net *NetworkConfigList) ([]string, error) + ValidateNetwork(ctx context.Context, net *NetworkConfig) ([]string, error) } type CNIConfig struct { @@ -120,7 +126,7 @@ func buildOneConfig(name, cniVersion string, orig *NetworkConfig, prevResult typ // These capabilities arguments are filtered through the plugin's advertised // capabilities from its config JSON, and any keys in the CapabilityArgs // matching plugin capabilities are added to the "runtimeConfig" dictionary -// sent to the plugin via JSON on stdin. For exmaple, if the plugin's +// sent to the plugin via JSON on stdin. For example, if the plugin's // capabilities include "portMappings", and the CapabilityArgs map includes a // "portMappings" key, that key and its value are added to the "runtimeConfig" // dictionary to be passed to the plugin's stdin. @@ -158,40 +164,12 @@ func (c *CNIConfig) ensureExec() invoke.Exec { return c.exec } -func (c *CNIConfig) addOrGetNetwork(command, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (types.Result, error) { - c.ensureExec() - pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path) - if err != nil { - return nil, err - } - - newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt) - if err != nil { - return nil, err - } - - return invoke.ExecPluginWithResult(pluginPath, newConf.Bytes, c.args(command, rt), c.exec) -} - -// Note that only GET requests should pass an initial prevResult -func (c *CNIConfig) addOrGetNetworkList(command string, prevResult types.Result, list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) { - var err error - for _, net := range list.Plugins { - prevResult, err = c.addOrGetNetwork(command, list.Name, list.CNIVersion, net, prevResult, rt) - if err != nil { - return nil, err - } - } - - return prevResult, nil -} - func getResultCacheFilePath(netName string, rt *RuntimeConf) string { cacheDir := rt.CacheDir if cacheDir == "" { cacheDir = CacheDir } - return filepath.Join(cacheDir, "results", fmt.Sprintf("%s-%s", netName, rt.ContainerID)) + return filepath.Join(cacheDir, "results", fmt.Sprintf("%s-%s-%s", netName, rt.ContainerID, rt.IfName)) } func setCachedResult(result types.Result, netName string, rt *RuntimeConf) error { @@ -243,37 +221,94 @@ func getCachedResult(netName, cniVersion string, rt *RuntimeConf) (types.Result, return result, err } -// AddNetworkList executes a sequence of plugins with the ADD command -func (c *CNIConfig) AddNetworkList(list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) { - result, err := c.addOrGetNetworkList("ADD", nil, list, rt) +// GetNetworkListCachedResult returns the cached Result of the previous +// previous AddNetworkList() operation for a network list, or an error. +func (c *CNIConfig) GetNetworkListCachedResult(list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) { + return getCachedResult(list.Name, list.CNIVersion, rt) +} + +// GetNetworkCachedResult returns the cached Result of the previous +// previous AddNetwork() operation for a network, or an error. +func (c *CNIConfig) GetNetworkCachedResult(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) { + return getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) +} + +func (c *CNIConfig) addNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (types.Result, error) { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path) if err != nil { return nil, err } + newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt) + if err != nil { + return nil, err + } + + return invoke.ExecPluginWithResult(ctx, pluginPath, newConf.Bytes, c.args("ADD", rt), c.exec) +} + +// AddNetworkList executes a sequence of plugins with the ADD command +func (c *CNIConfig) AddNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) { + var err error + var result types.Result + for _, net := range list.Plugins { + result, err = c.addNetwork(ctx, list.Name, list.CNIVersion, net, result, rt) + if err != nil { + return nil, err + } + } + if err = setCachedResult(result, list.Name, rt); err != nil { - return nil, fmt.Errorf("failed to set network '%s' cached result: %v", list.Name, err) + return nil, fmt.Errorf("failed to set network %q cached result: %v", list.Name, err) } return result, nil } -// GetNetworkList executes a sequence of plugins with the GET command -func (c *CNIConfig) GetNetworkList(list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) { - // GET was added in CNI spec version 0.4.0 and higher +func (c *CNIConfig) checkNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) error { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path) + if err != nil { + return err + } + + newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt) + if err != nil { + return err + } + + return invoke.ExecPluginWithoutResult(ctx, pluginPath, newConf.Bytes, c.args("CHECK", rt), c.exec) +} + +// CheckNetworkList executes a sequence of plugins with the CHECK command +func (c *CNIConfig) CheckNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) error { + // CHECK was added in CNI spec version 0.4.0 and higher if gtet, err := version.GreaterThanOrEqualTo(list.CNIVersion, "0.4.0"); err != nil { - return nil, err + return err } else if !gtet { - return nil, fmt.Errorf("configuration version %q does not support the GET command", list.CNIVersion) + return fmt.Errorf("configuration version %q does not support the CHECK command", list.CNIVersion) + } + + if list.DisableCheck { + return nil } cachedResult, err := getCachedResult(list.Name, list.CNIVersion, rt) if err != nil { - return nil, fmt.Errorf("failed to get network '%s' cached result: %v", list.Name, err) + return fmt.Errorf("failed to get network %q cached result: %v", list.Name, err) + } + + for _, net := range list.Plugins { + if err := c.checkNetwork(ctx, list.Name, list.CNIVersion, net, cachedResult, rt); err != nil { + return err + } } - return c.addOrGetNetworkList("GET", cachedResult, list, rt) + + return nil } -func (c *CNIConfig) delNetwork(name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) error { +func (c *CNIConfig) delNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) error { c.ensureExec() pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path) if err != nil { @@ -285,11 +320,11 @@ func (c *CNIConfig) delNetwork(name, cniVersion string, net *NetworkConfig, prev return err } - return invoke.ExecPluginWithoutResult(pluginPath, newConf.Bytes, c.args("DEL", rt), c.exec) + return invoke.ExecPluginWithoutResult(ctx, pluginPath, newConf.Bytes, c.args("DEL", rt), c.exec) } // DelNetworkList executes a sequence of plugins with the DEL command -func (c *CNIConfig) DelNetworkList(list *NetworkConfigList, rt *RuntimeConf) error { +func (c *CNIConfig) DelNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) error { var cachedResult types.Result // Cached result on DEL was added in CNI spec version 0.4.0 and higher @@ -298,13 +333,13 @@ func (c *CNIConfig) DelNetworkList(list *NetworkConfigList, rt *RuntimeConf) err } else if gtet { cachedResult, err = getCachedResult(list.Name, list.CNIVersion, rt) if err != nil { - return fmt.Errorf("failed to get network '%s' cached result: %v", list.Name, err) + return fmt.Errorf("failed to get network %q cached result: %v", list.Name, err) } } for i := len(list.Plugins) - 1; i >= 0; i-- { net := list.Plugins[i] - if err := c.delNetwork(list.Name, list.CNIVersion, net, cachedResult, rt); err != nil { + if err := c.delNetwork(ctx, list.Name, list.CNIVersion, net, cachedResult, rt); err != nil { return err } } @@ -314,37 +349,37 @@ func (c *CNIConfig) DelNetworkList(list *NetworkConfigList, rt *RuntimeConf) err } // AddNetwork executes the plugin with the ADD command -func (c *CNIConfig) AddNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) { - result, err := c.addOrGetNetwork("ADD", net.Network.Name, net.Network.CNIVersion, net, nil, rt) +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) if err != nil { return nil, err } if err = setCachedResult(result, net.Network.Name, rt); err != nil { - return nil, fmt.Errorf("failed to set network '%s' cached result: %v", net.Network.Name, err) + return nil, fmt.Errorf("failed to set network %q cached result: %v", net.Network.Name, err) } return result, nil } -// GetNetwork executes the plugin with the GET command -func (c *CNIConfig) GetNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) { - // GET was added in CNI spec version 0.4.0 and higher +// CheckNetwork executes the plugin with the CHECK command +func (c *CNIConfig) CheckNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error { + // CHECK was added in CNI spec version 0.4.0 and higher if gtet, err := version.GreaterThanOrEqualTo(net.Network.CNIVersion, "0.4.0"); err != nil { - return nil, err + return err } else if !gtet { - return nil, fmt.Errorf("configuration version %q does not support the GET command", net.Network.CNIVersion) + return fmt.Errorf("configuration version %q does not support the CHECK command", net.Network.CNIVersion) } cachedResult, err := getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) if err != nil { - return nil, fmt.Errorf("failed to get network '%s' cached result: %v", net.Network.Name, err) + return fmt.Errorf("failed to get network %q cached result: %v", net.Network.Name, err) } - return c.addOrGetNetwork("GET", net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt) + return c.checkNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt) } // DelNetwork executes the plugin with the DEL command -func (c *CNIConfig) DelNetwork(net *NetworkConfig, rt *RuntimeConf) error { +func (c *CNIConfig) DelNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error { var cachedResult types.Result // Cached result on DEL was added in CNI spec version 0.4.0 and higher @@ -353,27 +388,99 @@ func (c *CNIConfig) DelNetwork(net *NetworkConfig, rt *RuntimeConf) error { } else if gtet { cachedResult, err = getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) if err != nil { - return fmt.Errorf("failed to get network '%s' cached result: %v", net.Network.Name, err) + return fmt.Errorf("failed to get network %q cached result: %v", net.Network.Name, err) } } - if err := c.delNetwork(net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt); err != nil { + if err := c.delNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt); err != nil { return err } _ = delCachedResult(net.Network.Name, rt) return nil } +// ValidateNetworkList checks that a configuration is reasonably valid. +// - all the specified plugins exist on disk +// - every plugin supports the desired version. +// +// Returns a list of all capabilities supported by the configuration, or error +func (c *CNIConfig) ValidateNetworkList(ctx context.Context, list *NetworkConfigList) ([]string, error) { + version := list.CNIVersion + + // holding map for seen caps (in case of duplicates) + caps := map[string]interface{}{} + + errs := []error{} + for _, net := range list.Plugins { + if err := c.validatePlugin(ctx, net.Network.Type, version); err != nil { + errs = append(errs, err) + } + for c, enabled := range net.Network.Capabilities { + if !enabled { + continue + } + caps[c] = struct{}{} + } + } + + if len(errs) > 0 { + return nil, fmt.Errorf("%v", errs) + } + + // make caps list + cc := make([]string, 0, len(caps)) + for c := range caps { + cc = append(cc, c) + } + + return cc, nil +} + +// ValidateNetwork checks that a configuration is reasonably valid. +// It uses the same logic as ValidateNetworkList) +// Returns a list of capabilities +func (c *CNIConfig) ValidateNetwork(ctx context.Context, net *NetworkConfig) ([]string, error) { + caps := []string{} + for c, ok := range net.Network.Capabilities { + if ok { + caps = append(caps, c) + } + } + if err := c.validatePlugin(ctx, net.Network.Type, net.Network.CNIVersion); err != nil { + return nil, err + } + return caps, nil +} + +// validatePlugin checks that an individual plugin's configuration is sane +func (c *CNIConfig) validatePlugin(ctx context.Context, pluginName, expectedVersion string) error { + pluginPath, err := invoke.FindInPath(pluginName, c.Path) + if err != nil { + return err + } + + vi, err := invoke.GetVersionInfo(ctx, pluginPath, c.exec) + if err != nil { + return err + } + for _, vers := range vi.SupportedVersions() { + if vers == expectedVersion { + return nil + } + } + return fmt.Errorf("plugin %s does not support config version %q", pluginName, expectedVersion) +} + // GetVersionInfo reports which versions of the CNI spec are supported by // the given plugin. -func (c *CNIConfig) GetVersionInfo(pluginType string) (version.PluginInfo, error) { +func (c *CNIConfig) GetVersionInfo(ctx context.Context, pluginType string) (version.PluginInfo, error) { c.ensureExec() pluginPath, err := c.exec.FindInPath(pluginType, c.Path) if err != nil { return nil, err } - return invoke.GetVersionInfo(pluginPath, c.exec) + return invoke.GetVersionInfo(ctx, pluginPath, c.exec) } // ===== diff --git a/vendor/github.com/containernetworking/cni/libcni/conf.go b/vendor/github.com/containernetworking/cni/libcni/conf.go index 9834d715b..ea56c509d 100644 --- a/vendor/github.com/containernetworking/cni/libcni/conf.go +++ b/vendor/github.com/containernetworking/cni/libcni/conf.go @@ -83,10 +83,19 @@ func ConfListFromBytes(bytes []byte) (*NetworkConfigList, error) { } } + disableCheck := false + if rawDisableCheck, ok := rawList["disableCheck"]; ok { + disableCheck, ok = rawDisableCheck.(bool) + if !ok { + return nil, fmt.Errorf("error parsing configuration list: invalid disableCheck type %T", rawDisableCheck) + } + } + list := &NetworkConfigList{ - Name: name, - CNIVersion: cniVersion, - Bytes: bytes, + Name: name, + DisableCheck: disableCheck, + CNIVersion: cniVersion, + Bytes: bytes, } var plugins []interface{} diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go b/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go index 21efdf802..30b4672f1 100644 --- a/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go @@ -15,6 +15,7 @@ package invoke import ( + "context" "fmt" "os" "path/filepath" @@ -22,54 +23,53 @@ import ( "github.com/containernetworking/cni/pkg/types" ) -func delegateAddOrGet(command, delegatePlugin string, netconf []byte, exec Exec) (types.Result, error) { +func delegateCommon(expectedCommand, delegatePlugin string, exec Exec) (string, Exec, error) { if exec == nil { exec = defaultExec } + if os.Getenv("CNI_COMMAND") != expectedCommand { + return "", nil, fmt.Errorf("CNI_COMMAND is not " + expectedCommand) + } + paths := filepath.SplitList(os.Getenv("CNI_PATH")) pluginPath, err := exec.FindInPath(delegatePlugin, paths) if err != nil { - return nil, err + return "", nil, err } - return ExecPluginWithResult(pluginPath, netconf, ArgsFromEnv(), exec) + return pluginPath, exec, nil } // DelegateAdd calls the given delegate plugin with the CNI ADD action and // JSON configuration -func DelegateAdd(delegatePlugin string, netconf []byte, exec Exec) (types.Result, error) { - if os.Getenv("CNI_COMMAND") != "ADD" { - return nil, fmt.Errorf("CNI_COMMAND is not ADD") +func DelegateAdd(ctx context.Context, delegatePlugin string, netconf []byte, exec Exec) (types.Result, error) { + pluginPath, realExec, err := delegateCommon("ADD", delegatePlugin, exec) + if err != nil { + return nil, err } - return delegateAddOrGet("ADD", delegatePlugin, netconf, exec) + + return ExecPluginWithResult(ctx, pluginPath, netconf, ArgsFromEnv(), realExec) } -// DelegateGet calls the given delegate plugin with the CNI GET action and +// DelegateCheck calls the given delegate plugin with the CNI CHECK action and // JSON configuration -func DelegateGet(delegatePlugin string, netconf []byte, exec Exec) (types.Result, error) { - if os.Getenv("CNI_COMMAND") != "GET" { - return nil, fmt.Errorf("CNI_COMMAND is not GET") +func DelegateCheck(ctx context.Context, delegatePlugin string, netconf []byte, exec Exec) error { + pluginPath, realExec, err := delegateCommon("CHECK", delegatePlugin, exec) + if err != nil { + return err } - return delegateAddOrGet("GET", delegatePlugin, netconf, exec) + + return ExecPluginWithoutResult(ctx, pluginPath, netconf, ArgsFromEnv(), realExec) } // DelegateDel calls the given delegate plugin with the CNI DEL action and // JSON configuration -func DelegateDel(delegatePlugin string, netconf []byte, exec Exec) error { - if exec == nil { - exec = defaultExec - } - - if os.Getenv("CNI_COMMAND") != "DEL" { - return fmt.Errorf("CNI_COMMAND is not DEL") - } - - paths := filepath.SplitList(os.Getenv("CNI_PATH")) - pluginPath, err := exec.FindInPath(delegatePlugin, paths) +func DelegateDel(ctx context.Context, delegatePlugin string, netconf []byte, exec Exec) error { + pluginPath, realExec, err := delegateCommon("DEL", delegatePlugin, exec) if err != nil { return err } - return ExecPluginWithoutResult(pluginPath, netconf, ArgsFromEnv(), exec) + return ExecPluginWithoutResult(ctx, pluginPath, netconf, ArgsFromEnv(), realExec) } diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go b/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go index cf019d3a0..8e6d30b82 100644 --- a/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go @@ -15,6 +15,7 @@ package invoke import ( + "context" "fmt" "os" @@ -26,7 +27,7 @@ import ( // and executing a CNI plugin. Tests may provide a fake implementation // to avoid writing fake plugins to temporary directories during the test. type Exec interface { - ExecPlugin(pluginPath string, stdinData []byte, environ []string) ([]byte, error) + ExecPlugin(ctx context.Context, pluginPath string, stdinData []byte, environ []string) ([]byte, error) FindInPath(plugin string, paths []string) (string, error) Decode(jsonBytes []byte) (version.PluginInfo, error) } @@ -72,12 +73,12 @@ type Exec interface { // return "", fmt.Errorf("failed to find plugin %s in paths %v", plugin, paths) //} -func ExecPluginWithResult(pluginPath string, netconf []byte, args CNIArgs, exec Exec) (types.Result, error) { +func ExecPluginWithResult(ctx context.Context, pluginPath string, netconf []byte, args CNIArgs, exec Exec) (types.Result, error) { if exec == nil { exec = defaultExec } - stdoutBytes, err := exec.ExecPlugin(pluginPath, netconf, args.AsEnv()) + stdoutBytes, err := exec.ExecPlugin(ctx, pluginPath, netconf, args.AsEnv()) if err != nil { return nil, err } @@ -92,11 +93,11 @@ func ExecPluginWithResult(pluginPath string, netconf []byte, args CNIArgs, exec return version.NewResult(confVersion, stdoutBytes) } -func ExecPluginWithoutResult(pluginPath string, netconf []byte, args CNIArgs, exec Exec) error { +func ExecPluginWithoutResult(ctx context.Context, pluginPath string, netconf []byte, args CNIArgs, exec Exec) error { if exec == nil { exec = defaultExec } - _, err := exec.ExecPlugin(pluginPath, netconf, args.AsEnv()) + _, err := exec.ExecPlugin(ctx, pluginPath, netconf, args.AsEnv()) return err } @@ -104,7 +105,7 @@ func ExecPluginWithoutResult(pluginPath string, netconf []byte, args CNIArgs, ex // For recent-enough plugins, it uses the information returned by the VERSION // command. For older plugins which do not recognize that command, it reports // version 0.1.0 -func GetVersionInfo(pluginPath string, exec Exec) (version.PluginInfo, error) { +func GetVersionInfo(ctx context.Context, pluginPath string, exec Exec) (version.PluginInfo, error) { if exec == nil { exec = defaultExec } @@ -117,7 +118,7 @@ func GetVersionInfo(pluginPath string, exec Exec) (version.PluginInfo, error) { Path: "dummy", } stdin := []byte(fmt.Sprintf(`{"cniVersion":%q}`, version.Current())) - stdoutBytes, err := exec.ExecPlugin(pluginPath, stdin, args.AsEnv()) + stdoutBytes, err := exec.ExecPlugin(ctx, pluginPath, stdin, args.AsEnv()) if err != nil { if err.Error() == "unknown CNI_COMMAND: VERSION" { return version.PluginSupports("0.1.0"), nil diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go b/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go index bab5737a9..9bcfb4553 100644 --- a/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go @@ -12,7 +12,7 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build darwin dragonfly freebsd linux netbsd opensbd solaris +// +build darwin dragonfly freebsd linux netbsd openbsd solaris package invoke diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go b/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go index a598f09c2..e5b86634d 100644 --- a/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go @@ -16,6 +16,7 @@ package invoke import ( "bytes" + "context" "encoding/json" "fmt" "io" @@ -28,17 +29,13 @@ type RawExec struct { Stderr io.Writer } -func (e *RawExec) ExecPlugin(pluginPath string, stdinData []byte, environ []string) ([]byte, error) { +func (e *RawExec) ExecPlugin(ctx context.Context, pluginPath string, stdinData []byte, environ []string) ([]byte, error) { stdout := &bytes.Buffer{} - - c := exec.Cmd{ - Env: environ, - Path: pluginPath, - Args: []string{pluginPath}, - Stdin: bytes.NewBuffer(stdinData), - Stdout: stdout, - Stderr: e.Stderr, - } + c := exec.CommandContext(ctx, pluginPath) + c.Env = environ + c.Stdin = bytes.NewBuffer(stdinData) + c.Stdout = stdout + c.Stderr = e.Stderr if err := c.Run(); err != nil { return nil, pluginErr(err, stdout.Bytes()) } 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 2833aba78..53256167f 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/020/types.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/020/types.go @@ -17,6 +17,7 @@ package types020 import ( "encoding/json" "fmt" + "io" "net" "os" @@ -73,11 +74,15 @@ func (r *Result) GetAsVersion(version string) (types.Result, error) { } 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 = os.Stdout.Write(data) + _, err = writer.Write(data) return err } diff --git a/vendor/github.com/containernetworking/cni/pkg/types/current/types.go b/vendor/github.com/containernetworking/cni/pkg/types/current/types.go index 92980c1a7..7267a2e6d 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/current/types.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/current/types.go @@ -17,6 +17,7 @@ package current import ( "encoding/json" "fmt" + "io" "net" "os" @@ -75,13 +76,9 @@ func convertFrom020(result types.Result) (*Result, error) { 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, + GW: route.GW, }) } } @@ -93,21 +90,13 @@ func convertFrom020(result types.Result) (*Result, error) { 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, + GW: route.GW, }) } } - if len(newResult.IPs) == 0 { - return nil, fmt.Errorf("cannot convert: no valid IP addresses") - } - return newResult, nil } @@ -206,11 +195,15 @@ func (r *Result) GetAsVersion(version string) (types.Result, error) { } 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 = os.Stdout.Write(data) + _, err = writer.Write(data) return err } diff --git a/vendor/github.com/containernetworking/cni/pkg/types/types.go b/vendor/github.com/containernetworking/cni/pkg/types/types.go index 4684a3207..d0d11006a 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/types.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/types.go @@ -18,6 +18,7 @@ import ( "encoding/json" "errors" "fmt" + "io" "net" "os" ) @@ -65,6 +66,9 @@ type NetConf struct { Capabilities map[string]bool `json:"capabilities,omitempty"` IPAM IPAM `json:"ipam,omitempty"` DNS DNS `json:"dns"` + + RawPrevResult map[string]interface{} `json:"prevResult,omitempty"` + PrevResult Result `json:"-"` } type IPAM struct { @@ -75,15 +79,16 @@ type IPAM struct { type NetConfList struct { CNIVersion string `json:"cniVersion,omitempty"` - Name string `json:"name,omitempty"` - Plugins []*NetConf `json:"plugins,omitempty"` + Name string `json:"name,omitempty"` + DisableCheck bool `json:"disableCheck,omitempty"` + Plugins []*NetConf `json:"plugins,omitempty"` } type ResultFactoryFunc func([]byte) (Result, error) // Result is an interface that provides the result of plugin execution type Result interface { - // The highest CNI specification result verison the result supports + // The highest CNI specification result version the result supports // without having to convert Version() string @@ -94,6 +99,9 @@ type Result interface { // Prints the result in JSON format to stdout Print() error + // Prints the result in JSON format to provided writer + PrintTo(writer io.Writer) error + // Returns a JSON string representation of the result String() string } diff --git a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go index 612335a81..1df427243 100644 --- a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go +++ b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go @@ -86,9 +86,13 @@ func (*PluginDecoder) Decode(jsonBytes []byte) (PluginInfo, error) { // minor, and micro numbers or returns an error func ParseVersion(version string) (int, int, int, error) { var major, minor, micro int + if version == "" { + return -1, -1, -1, fmt.Errorf("invalid version %q: the version is empty", version) + } + parts := strings.Split(version, ".") - if len(parts) == 0 || len(parts) >= 4 { - return -1, -1, -1, fmt.Errorf("invalid version %q: too many or too few parts", version) + if len(parts) >= 4 { + return -1, -1, -1, fmt.Errorf("invalid version %q: too many parts", version) } major, err := strconv.Atoi(parts[0]) @@ -114,7 +118,7 @@ func ParseVersion(version string) (int, int, int, error) { } // GreaterThanOrEqualTo takes two string versions, parses them into major/minor/micro -// nubmers, and compares them to determine whether the first version is greater +// numbers, and compares them to determine whether the first version is greater // than or equal to the second func GreaterThanOrEqualTo(version, otherVersion string) (bool, error) { firstMajor, firstMinor, firstMicro, err := ParseVersion(version) diff --git a/vendor/github.com/containernetworking/cni/pkg/version/version.go b/vendor/github.com/containernetworking/cni/pkg/version/version.go index c8e46d55b..8f3508e61 100644 --- a/vendor/github.com/containernetworking/cni/pkg/version/version.go +++ b/vendor/github.com/containernetworking/cni/pkg/version/version.go @@ -15,6 +15,7 @@ package version import ( + "encoding/json" "fmt" "github.com/containernetworking/cni/pkg/types" @@ -59,3 +60,24 @@ func NewResult(version string, resultBytes []byte) (types.Result, error) { return nil, fmt.Errorf("unsupported CNI result version %q", version) } + +// ParsePrevResult parses a prevResult in a NetConf structure and sets +// the NetConf's PrevResult member to the parsed Result object. +func ParsePrevResult(conf *types.NetConf) error { + if conf.RawPrevResult == nil { + return nil + } + + resultBytes, err := json.Marshal(conf.RawPrevResult) + if err != nil { + return fmt.Errorf("could not serialize prevResult: %v", err) + } + + conf.RawPrevResult = nil + conf.PrevResult, err = NewResult(conf.CNIVersion, resultBytes) + if err != nil { + return fmt.Errorf("could not parse prevResult: %v", err) + } + + return nil +} |