diff options
| author | Nikolay Aleksandrov <nikolay@cumulusnetworks.com> | 2018-11-24 04:34:21 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-11-27 15:04:15 -0800 |
| commit | 70e4272b4c81828e7d942209bae83b9d92752cfe (patch) | |
| tree | 4d3d081ba8776a1d67206c8c9d0ba4d1807e3092 /net/bridge/br_input.c | |
| parent | a428afe82f98d2ffb31c981671630df1fa25906f (diff) | |
net: bridge: add no_linklocal_learn bool option
Use the new boolopt API to add an option which disables learning from
link-local packets. The default is kept as before and learning is
enabled. This is a simple map from a boolopt bit to a bridge private
flag that is tested before learning.
v2: pass NULL for extack via sysfs
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_input.c')
| -rw-r--r-- | net/bridge/br_input.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index 3ddca11f44c2..5ea7e56119c1 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -188,7 +188,9 @@ static void __br_handle_local_finish(struct sk_buff *skb) u16 vid = 0; /* check if vlan is allowed, to avoid spoofing */ - if (p->flags & BR_LEARNING && br_should_learn(p, skb, &vid)) + if ((p->flags & BR_LEARNING) && + !br_opt_get(p->br, BROPT_NO_LL_LEARN) && + br_should_learn(p, skb, &vid)) br_fdb_update(p->br, p, eth_hdr(skb)->h_source, vid, false); } |