88 lines
2.3 KiB
Go
88 lines
2.3 KiB
Go
|
// Copyright 2015 CNI authors
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
package libcni
|
||
|
|
|
||
|
|
import (
|
||
|
|
"strings"
|
||
|
|
|
||
|
|
"github.com/containernetworking/cni/pkg/invoke"
|
||
|
|
"github.com/containernetworking/cni/pkg/types"
|
||
|
|
"github.com/containernetworking/cni/pkg/version"
|
||
|
|
)
|
||
|
|
|
||
|
|
type RuntimeConf struct {
|
||
|
|
ContainerID string
|
||
|
|
NetNS string
|
||
|
|
IfName string
|
||
|
|
Args [][2]string
|
||
|
|
}
|
||
|
|
|
||
|
|
type NetworkConfig struct {
|
||
|
|
Network *types.NetConf
|
||
|
|
Bytes []byte
|
||
|
|
}
|
||
|
|
|
||
|
|
type CNI interface {
|
||
|
|
AddNetwork(net *NetworkConfig, rt *RuntimeConf) (*types.Result, error)
|
||
|
|
DelNetwork(net *NetworkConfig, rt *RuntimeConf) error
|
||
|
|
}
|
||
|
|
|
||
|
|
type CNIConfig struct {
|
||
|
|
Path []string
|
||
|
|
}
|
||
|
|
|
||
|
|
// AddNetwork executes the plugin with the ADD command
|
||
|
|
func (c *CNIConfig) AddNetwork(net *NetworkConfig, rt *RuntimeConf) (*types.Result, error) {
|
||
|
|
pluginPath, err := invoke.FindInPath(net.Network.Type, c.Path)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
return invoke.ExecPluginWithResult(pluginPath, net.Bytes, c.args("ADD", rt))
|
||
|
|
}
|
||
|
|
|
||
|
|
// DelNetwork executes the plugin with the DEL command
|
||
|
|
func (c *CNIConfig) DelNetwork(net *NetworkConfig, rt *RuntimeConf) error {
|
||
|
|
pluginPath, err := invoke.FindInPath(net.Network.Type, c.Path)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
return invoke.ExecPluginWithoutResult(pluginPath, net.Bytes, c.args("DEL", rt))
|
||
|
|
}
|
||
|
|
|
||
|
|
// GetVersionInfo reports which versions of the CNI spec are supported by
|
||
|
|
// the given plugin.
|
||
|
|
func (c *CNIConfig) GetVersionInfo(pluginType string) (version.PluginInfo, error) {
|
||
|
|
pluginPath, err := invoke.FindInPath(pluginType, c.Path)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
return invoke.GetVersionInfo(pluginPath)
|
||
|
|
}
|
||
|
|
|
||
|
|
// =====
|
||
|
|
func (c *CNIConfig) args(action string, rt *RuntimeConf) *invoke.Args {
|
||
|
|
return &invoke.Args{
|
||
|
|
Command: action,
|
||
|
|
ContainerID: rt.ContainerID,
|
||
|
|
NetNS: rt.NetNS,
|
||
|
|
PluginArgs: rt.Args,
|
||
|
|
IfName: rt.IfName,
|
||
|
|
Path: strings.Join(c.Path, ":"),
|
||
|
|
}
|
||
|
|
}
|