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/*
Copyright The containerd 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 cni
import (
"context"
cnilibrary "github.com/containernetworking/cni/libcni"
types100 "github.com/containernetworking/cni/pkg/types/100"
)
type Network struct {
cni cnilibrary.CNI
config *cnilibrary.NetworkConfigList
ifName string
}
func (n *Network) Attach(ctx context.Context, ns *Namespace) (*types100.Result, error) {
r, err := n.cni.AddNetworkList(ctx, n.config, ns.config(n.ifName))
if err != nil {
return nil, err
}
return types100.NewResultFromResult(r)
}
func (n *Network) Remove(ctx context.Context, ns *Namespace) error {
return n.cni.DelNetworkList(ctx, n.config, ns.config(n.ifName))
}
func (n *Network) Check(ctx context.Context, ns *Namespace) error {
return n.cni.CheckNetworkList(ctx, n.config, ns.config(n.ifName))
}
type Namespace struct {
id string
path string
capabilityArgs map[string]interface{}
args map[string]string
}
func newNamespace(id, path string, opts ...NamespaceOpts) (*Namespace, error) {
ns := &Namespace{
id: id,
path: path,
capabilityArgs: make(map[string]interface{}),
args: make(map[string]string),
}
for _, o := range opts {
if err := o(ns); err != nil {
return nil, err
}
}
return ns, nil
}
func (ns *Namespace) config(ifName string) *cnilibrary.RuntimeConf {
c := &cnilibrary.RuntimeConf{
ContainerID: ns.id,
NetNS: ns.path,
IfName: ifName,
}
for k, v := range ns.args {
c.Args = append(c.Args, [2]string{k, v})
}
c.CapabilityArgs = ns.capabilityArgs
return c
}
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