func cmdDel(args *skel.CmdArgs) error {
args.IfName = "lo" // ignore config, this only works for loopback
err := ns.WithNetNSPath(args.Netns, false, func(hostNS *os.File) error {
link, err := netlink.LinkByName(args.IfName)
if err != nil {
return err // not tested
}
err = netlink.LinkSetDown(link)
if err != nil {
return err // not tested
}
return nil
})
if err != nil {
return err // not tested
}
return nil
}
func rpcCall(method string, args *skel.CmdArgs, result interface{}) error {
client, err := rpc.DialHTTP("unix", socketPath)
if err != nil {
return fmt.Errorf("error dialing DHCP daemon: %v", err)
}
// The daemon may be running under a different working dir
// so make sure the netns path is absolute.
netns, err := filepath.Abs(args.Netns)
if err != nil {
return fmt.Errorf("failed to make %q an absolute path: %v", args.Netns, err)
}
args.Netns = netns
err = client.Call(method, args, result)
if err != nil {
return fmt.Errorf("error calling %v: %v", method, err)
}
return nil
}