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network: support hotplug a nic several times

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Bind back the nic's MAC in HotDetach. So we don't need to modify
nic's MAC in description to hotplug it again.

Fixes: #894

Signed-off-by: Ruidong Cao <caoruidong@huawei.com>
This commit is contained in:
Ruidong Cao 2018-11-09 17:07:14 +08:00
parent d895cd0f2d
commit 2f98b3ee90
1 changed files with 18 additions and 0 deletions
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18
virtcontainers/network.go
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@ -985,6 +985,15 @@ func untapNetworkPair(endpoint Endpoint) error {
return err
}
hardAddr, err := net.ParseMAC(netPair.TAPIface.HardAddr)
if err != nil {
return err
}
if err := netHandle.LinkSetHardwareAddr(link, hardAddr); err != nil {
return fmt.Errorf("Could not set MAC address %s for veth interface %s: %s",
netPair.VirtIface.HardAddr, netPair.VirtIface.Name, err)
}
if err := netHandle.LinkSetDown(link); err != nil {
return fmt.Errorf("Could not disable veth %s: %s", netPair.VirtIface.Name, err)
}
@ -1038,6 +1047,15 @@ func unBridgeNetworkPair(endpoint Endpoint) error {
return err
}
hardAddr, err := net.ParseMAC(netPair.TAPIface.HardAddr)
if err != nil {
return err
}
if err := netHandle.LinkSetHardwareAddr(link, hardAddr); err != nil {
return fmt.Errorf("Could not set MAC address %s for veth interface %s: %s",
netPair.VirtIface.HardAddr, netPair.VirtIface.Name, err)
}
if err := netHandle.LinkSetDown(link); err != nil {
return fmt.Errorf("Could not disable veth %s: %s", netPair.VirtIface.Name, err)
}