func cmdAdd(args *skel.CmdArgs) error {
conf := NetConf{}
if err := json.Unmarshal(args.StdinData, &conf); err != nil {
return fmt.Errorf("failed to load netconf: %v", err)
}
// run the IPAM plugin and get back the config to apply
result, err := plugin.ExecAdd(conf.IPAM.Type, args.StdinData)
if err != nil {
return err
}
if result.IP4 == nil {
return errors.New("IPAM plugin returned missing IPv4 config")
}
hostVethName, err := setupContainerVeth(args.Netns, args.IfName, conf.MTU, result)
if err != nil {
return err
}
if err = setupHostVeth(hostVethName, result.IP4); err != nil {
return err
}
if conf.IPMasq {
h := sha512.Sum512([]byte(args.Netns))
chain := fmt.Sprintf("CNI-%s-%x", conf.Name, h[:8])
if err = ip.SetupIPMasq(&result.IP4.IP, chain); err != nil {
return err
}
}
return plugin.PrintResult(result)
}
func cmdAdd(args *skel.CmdArgs) error {
n, err := loadConf(args.StdinData)
if err != nil {
return err
}
netns, err := os.Open(args.Netns)
if err != nil {
return fmt.Errorf("failed to open netns %q: %v", netns, err)
}
defer netns.Close()
tmpName, err := ip.RandomVethName()
if err != nil {
return err
}
if err = createIpvlan(n, tmpName, netns); err != nil {
return err
}
// run the IPAM plugin and get back the config to apply
result, err := plugin.ExecAdd(n.IPAM.Type, args.StdinData)
if err != nil {
return err
}
if result.IP4 == nil {
return errors.New("IPAM plugin returned missing IPv4 config")
}
err = ns.WithNetNS(netns, func(_ *os.File) error {
err := renameLink(tmpName, args.IfName)
if err != nil {
return fmt.Errorf("failed to rename ipvlan to %q: %v", args.IfName, err)
}
return plugin.ConfigureIface(args.IfName, result)
})
if err != nil {
return err
}
if n.IPMasq {
chain := "CNI-" + n.Name
if err = ip.SetupIPMasq(ip.Network(&result.IP4.IP), chain); err != nil {
return err
}
}
return plugin.PrintResult(result)
}
func cmdAdd(args *skel.CmdArgs) error {
n, err := loadNetConf(args.StdinData)
if err != nil {
return err
}
// run the IPAM plugin and get back the config to apply
result, err := plugin.ExecAdd(n.IPAM.Type, args.StdinData)
if err != nil {
return err
}
if result.IP4 == nil {
return errors.New("IPAM plugin returned missing IPv4 config")
}
if result.IP4.Gateway == nil && n.IsGW {
result.IP4.Gateway = calcGatewayIP(&result.IP4.IP)
}
br, err := setupBridge(n, result.IP4)
if err != nil {
return err
}
if err = setupVeth(args.Netns, br, args.IfName, n.MTU, result); err != nil {
return err
}
if n.IPMasq {
chain := "CNI-" + n.Name
if err = ip.SetupIPMasq(ip.Network(&result.IP4.IP), chain); err != nil {
return err
}
}
return plugin.PrintResult(result)
}
func cmdAdd(args *skel.CmdArgs) error {
ipamConf, err := LoadIPAMConfig(args.StdinData)
if err != nil {
return err
}
store, err := disk.New(ipamConf.Name)
if err != nil {
return err
}
defer store.Close()
allocator, err := NewIPAllocator(ipamConf, store)
if err != nil {
return err
}
var ipConf *plugin.IPConfig
switch ipamConf.Type {
case "host-local":
ipConf, err = allocator.Get(args.Netns)
case "host-local-ptp":
ipConf, err = allocator.GetPtP(args.Netns)
default:
return errors.New("Unsupported IPAM plugin type")
}
if err != nil {
return err
}
return plugin.PrintResult(&plugin.Result{
IP4: ipConf,
})
}