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authorPatrick McHardy <kaber@trash.net>2009-11-25 07:54:54 +0000
committerDavid S. Miller <davem@davemloft.net>2009-11-26 16:00:36 -0800
commit5e7565930524410f097f5b04f8aba663089a6ffc (patch)
tree7575fb4b06fdad1e2e9796e0dc99ca011e59980e /net/8021q/vlan_netlink.c
parentcc83f6d6922018a1b762f67af539867a6b05398e (diff)
vlan: support "loose binding" to the underlying network device
Currently the UP/DOWN state of VLANs is synchronized to the state of the underlying device, meaning all VLANs are set down once the underlying device is set down. This causes all routes to the VLAN devices to vanish. Add a flag to specify a "loose binding" mode, in which only the operstate is transfered, but the VLAN device state is independant. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q/vlan_netlink.c')
-rw-r--r--net/8021q/vlan_netlink.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
index 3c9cf6a8e7fb..ddc105734af7 100644
--- a/net/8021q/vlan_netlink.c
+++ b/net/8021q/vlan_netlink.c
@@ -60,7 +60,8 @@ static int vlan_validate(struct nlattr *tb[], struct nlattr *data[])
if (data[IFLA_VLAN_FLAGS]) {
flags = nla_data(data[IFLA_VLAN_FLAGS]);
if ((flags->flags & flags->mask) &
- ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP))
+ ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP |
+ VLAN_FLAG_LOOSE_BINDING))
return -EINVAL;
}

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