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Add support for link flag allmulticast

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Equivalent to: ip link set <link> allmulticast <on|off>

Signed-off-by: Peter Morjan <peter.morjan@de.ibm.com>
This commit is contained in:
Peter Morjan 2018-05-04 14:48:00 +02:00 committed by Flavio Crisciani
parent 16769db002
commit 985ab95d37
2 changed files with 105 additions and 0 deletions
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48
link_linux.go
View File

@ -113,6 +113,54 @@ func (h *Handle) SetPromiscOn(link Link) error {
return err return err
} }
// LinkSetAllmulticastOn enables the reception of all hardware multicast packets for the link device.
// Equivalent to: `ip link set $link allmulticast on`
func LinkSetAllmulticastOn(link Link) error {
return pkgHandle.LinkSetAllmulticastOn(link)
}
// LinkSetAllmulticastOn enables the reception of all hardware multicast packets for the link device.
// Equivalent to: `ip link set $link allmulticast on`
func (h *Handle) LinkSetAllmulticastOn(link Link) error {
base := link.Attrs()
h.ensureIndex(base)
req := h.newNetlinkRequest(unix.RTM_NEWLINK, unix.NLM_F_ACK)
msg := nl.NewIfInfomsg(unix.AF_UNSPEC)
msg.Change = unix.IFF_ALLMULTI
msg.Flags = unix.IFF_ALLMULTI
msg.Index = int32(base.Index)
req.AddData(msg)
_, err := req.Execute(unix.NETLINK_ROUTE, 0)
return err
}
// LinkSetAllmulticastOff disables the reception of all hardware multicast packets for the link device.
// Equivalent to: `ip link set $link allmulticast off`
func LinkSetAllmulticastOff(link Link) error {
return pkgHandle.LinkSetAllmulticastOff(link)
}
// LinkSetAllmulticastOff disables the reception of all hardware multicast packets for the link device.
// Equivalent to: `ip link set $link allmulticast off`
func (h *Handle) LinkSetAllmulticastOff(link Link) error {
base := link.Attrs()
h.ensureIndex(base)
req := h.newNetlinkRequest(unix.RTM_NEWLINK, unix.NLM_F_ACK)
msg := nl.NewIfInfomsg(unix.AF_UNSPEC)
msg.Change = unix.IFF_ALLMULTI
msg.Flags = 0
msg.Index = int32(base.Index)
req.AddData(msg)
_, err := req.Execute(unix.NETLINK_ROUTE, 0)
return err
}
func MacvlanMACAddrAdd(link Link, addr net.HardwareAddr) error { func MacvlanMACAddrAdd(link Link, addr net.HardwareAddr) error {
return pkgHandle.MacvlanMACAddrAdd(link, addr) return pkgHandle.MacvlanMACAddrAdd(link, addr)
} }

57
link_test.go
View File

@ -1869,3 +1869,60 @@ func TestLinkSetBondSlave(t *testing.T) {
t.Errorf("For %s expected %s to be master", slaveTwoLink.Attrs().Name, bondLink.Attrs().Name) t.Errorf("For %s expected %s to be master", slaveTwoLink.Attrs().Name, bondLink.Attrs().Name)
} }
} }
func TestLinkSetAllmulticast(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Veth{LinkAttrs: LinkAttrs{Name: "foo"}, PeerName: "bar"}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if err := LinkSetUp(link); err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
rawFlagsStart := link.Attrs().RawFlags
if err := LinkSetAllmulticastOn(link); err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().RawFlags&unix.IFF_ALLMULTI != uint32(unix.IFF_ALLMULTI) {
t.Fatal("IFF_ALLMULTI was not set!")
}
if err := LinkSetAllmulticastOff(link); err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().RawFlags&unix.IFF_ALLMULTI != 0 {
t.Fatal("IFF_ALLMULTI is still set!")
}
rawFlagsEnd := link.Attrs().RawFlags
if rawFlagsStart != rawFlagsEnd {
t.Fatalf("RawFlags start value:%d differs from end value:%d", rawFlagsStart, rawFlagsEnd)
}
}