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vlan: Add GVRP support

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Add GVRP support for dynamically registering VLANs with switches.

By default GVRP is disabled because we only support the applicant-only
participant model, which means it should not be enabled on vlans that
are members of a bridge. Since there is currently no way to cleanly
determine that, the user is responsible for enabling it.

The code is pretty small and low impact, its wrapped in a config
option though because it depends on the GARP implementation and
the STP core.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy
2008-07-05 21:26:57 -07:00
committed by David S. Miller
parent ce305002e1
commit 70c03b49b8
9 changed files with 134 additions and 13 deletions
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3
net/8021q/vlan_netlink.c
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@@ -59,7 +59,8 @@ 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)
if ((flags->flags & flags->mask) &
~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP))
return -EINVAL;
}