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Add pkg/ip/link_linux.go:SetupVethWithName to support the host-side veth

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name configuration.
This commit is contained in:
Koonwah Chen
2019-06-26 10:23:20 -07:00
parent 545a77f4bb
commit 96bd10f679
4 changed files with 18 additions and 10 deletions
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16
pkg/ip/link_linux.go
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@@ -125,12 +125,12 @@ func ifaceFromNetlinkLink(l netlink.Link) net.Interface {
}
}
// SetupVeth sets up a pair of virtual ethernet devices.
// Call SetupVeth from inside the container netns. It will create both veth
// SetupVethWithName sets up a pair of virtual ethernet devices.
// Call SetupVethWithName from inside the container netns. It will create both veth
// devices and move the host-side veth into the provided hostNS namespace.
// hostVethName: If hostVethName is not specified, the host-side veth name will use a random string.
// On success, SetupVeth returns (hostVeth, containerVeth, nil)
func SetupVeth(contVethName, hostVethName string, mtu int, hostNS ns.NetNS) (net.Interface, net.Interface, error) {
// On success, SetupVethWithName returns (hostVeth, containerVeth, nil)
func SetupVethWithName(contVethName, hostVethName string, mtu int, hostNS ns.NetNS) (net.Interface, net.Interface, error) {
hostVethName, contVeth, err := makeVeth(contVethName, hostVethName, mtu)
if err != nil {
return net.Interface{}, net.Interface{}, err
@@ -166,6 +166,14 @@ func SetupVeth(contVethName, hostVethName string, mtu int, hostNS ns.NetNS) (net
return ifaceFromNetlinkLink(hostVeth), ifaceFromNetlinkLink(contVeth), nil
}
// SetupVeth sets up a pair of virtual ethernet devices.
// Call SetupVeth from inside the container netns. It will create both veth
// devices and move the host-side veth into the provided hostNS namespace.
// On success, SetupVeth returns (hostVeth, containerVeth, nil)
func SetupVeth(contVethName string, mtu int, hostNS ns.NetNS) (net.Interface, net.Interface, error) {
return SetupVethWithName(contVethName, "", mtu, hostNS)
}
// DelLinkByName removes an interface link.
func DelLinkByName(ifName string) error {
iface, err := netlink.LinkByName(ifName)