ITQC/containernetworking-plugins
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pkg/ip: use iface name in SetHWAddrByIP

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This commit is contained in:
Stefan Junker 2016-06-29 12:13:05 -07:00
parent 8e1c215116
commit 7d19c01818
4 changed files with 28 additions and 25 deletions
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21
pkg/ip/link.go
View File

@ -153,18 +153,29 @@ func DelLinkByNameAddr(ifName string, family int) (*net.IPNet, error) {
return addrs[0].IPNet, nil return addrs[0].IPNet, nil
} }
func SetHWAddrByIP(link netlink.Link, ip4 net.IP, ip6 net.IP) error { func SetHWAddrByIP(ifName string, ip4 net.IP, ip6 net.IP) error {
if ip4 != nil { iface, err := netlink.LinkByName(ifName)
if err != nil {
return fmt.Errorf("failed to lookup %q: %v", ifName, err)
}
switch {
case ip4 == nil && ip6 == nil:
return fmt.Errorf("neither ip4 or ip6 specified")
case ip4 != nil:
{
hwAddr, err := hwaddr.GenerateHardwareAddr4(ip4, hwaddr.PrivateMACPrefix) hwAddr, err := hwaddr.GenerateHardwareAddr4(ip4, hwaddr.PrivateMACPrefix)
if err != nil { if err != nil {
return fmt.Errorf("failed to generate hardware addr: %v", err) return fmt.Errorf("failed to generate hardware addr: %v", err)
} }
if err = netlink.LinkSetHardwareAddr(link, hwAddr); err != nil { if err = netlink.LinkSetHardwareAddr(iface, hwAddr); err != nil {
return fmt.Errorf("failed to add hardware addr to %q: %v", link.Attrs().Name, err) return fmt.Errorf("failed to add hardware addr to %q: %v", ifName, err)
} }
} }
case ip6 != nil:
// TODO: IPv6 // TODO: IPv6
}
return nil return nil
} }

8
plugins/main/bridge/bridge.go
View File

@ -251,11 +251,7 @@ func cmdAdd(args *skel.CmdArgs) error {
return err return err
} }
contVethLink, err := netlink.LinkByName(args.IfName) if err := ip.SetHWAddrByIP(args.IfName, result.IP4.IP.IP, nil /* TODO IPv6 */); err != nil {
if err != nil {
return fmt.Errorf("failed to lookup %q: %v", args.IfName, err)
}
if err := ip.SetHWAddrByIP(contVethLink, result.IP4.IP.IP, nil /* TODO IPv6 */); err != nil {
return err return err
} }
@ -274,7 +270,7 @@ func cmdAdd(args *skel.CmdArgs) error {
return err return err
} }
if err := ip.SetHWAddrByIP(br, gwn.IP, nil /* TODO IPv6 */); err != nil { if err := ip.SetHWAddrByIP(n.BrName, gwn.IP, nil /* TODO IPv6 */); err != nil {
return err return err
} }

6
plugins/main/macvlan/macvlan.go
View File

@ -149,11 +149,7 @@ func cmdAdd(args *skel.CmdArgs) error {
} }
err = netns.Do(func(_ ns.NetNS) error { err = netns.Do(func(_ ns.NetNS) error {
contVethLink, err := netlink.LinkByName(args.IfName) if err := ip.SetHWAddrByIP(args.IfName, result.IP4.IP.IP, nil /* TODO IPv6 */); err != nil {
if err != nil {
return fmt.Errorf("failed to lookup %q: %v", args.IfName, err)
}
if err := ip.SetHWAddrByIP(contVethLink, result.IP4.IP.IP, nil /* TODO IPv6 */); err != nil {
return err return err
} }

8
plugins/main/ptp/ptp.go
View File

@ -64,7 +64,9 @@ func setupContainerVeth(netns, ifName string, mtu int, pr *types.Result) (string
return err return err
} }
if err := ip.SetHWAddrByIP(hostVeth, pr.IP4.IP.IP, nil /* TODO IPv6 */); err != nil { hostVethName = hostVeth.Attrs().Name
if err := ip.SetHWAddrByIP(hostVethName, pr.IP4.IP.IP, nil /* TODO IPv6 */); err != nil {
return fmt.Errorf("failed to set hardware addr by IP: %v", err) return fmt.Errorf("failed to set hardware addr by IP: %v", err)
} }
@ -77,7 +79,7 @@ func setupContainerVeth(netns, ifName string, mtu int, pr *types.Result) (string
return fmt.Errorf("failed to look up %q: %v", ifName, err) return fmt.Errorf("failed to look up %q: %v", ifName, err)
} }
if err := ip.SetHWAddrByIP(contVeth, pr.IP4.IP.IP, nil /* TODO IPv6 */); err != nil { if err := ip.SetHWAddrByIP(contVeth.Attrs().Name, pr.IP4.IP.IP, nil /* TODO IPv6 */); err != nil {
return fmt.Errorf("failed to set hardware addr by IP: %v", err) return fmt.Errorf("failed to set hardware addr by IP: %v", err)
} }
@ -121,8 +123,6 @@ func setupContainerVeth(netns, ifName string, mtu int, pr *types.Result) (string
} }
} }
hostVethName = hostVeth.Attrs().Name
return nil return nil
}) })
return hostVethName, err return hostVethName, err