diff options
Diffstat (limited to 'net/bridge/br_input.c')
| -rw-r--r-- | net/bridge/br_input.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index edfdaef44296..53b39851d87d 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -41,6 +41,7 @@ int br_handle_frame_finish(struct sk_buff *skb) struct net_bridge_port *p = rcu_dereference(skb->dev->br_port); struct net_bridge *br; struct net_bridge_fdb_entry *dst; + struct net_bridge_mdb_entry *mdst; struct sk_buff *skb2; if (!p || p->state == BR_STATE_DISABLED) @@ -50,6 +51,10 @@ int br_handle_frame_finish(struct sk_buff *skb) br = p->br; br_fdb_update(br, p, eth_hdr(skb)->h_source); + if (is_multicast_ether_addr(dest) && + br_multicast_rcv(br, p, skb)) + goto drop; + if (p->state == BR_STATE_LEARNING) goto drop; @@ -64,8 +69,19 @@ int br_handle_frame_finish(struct sk_buff *skb) dst = NULL; if (is_multicast_ether_addr(dest)) { + mdst = br_mdb_get(br, skb); + if (mdst || BR_INPUT_SKB_CB(skb)->mrouters_only) { + if ((mdst && !hlist_unhashed(&mdst->mglist)) || + br_multicast_is_router(br)) + skb2 = skb; + br_multicast_forward(mdst, skb, skb2); + skb = NULL; + if (!skb2) + goto out; + } else + skb2 = skb; + br->dev->stats.multicast++; - skb2 = skb; } else if ((dst = __br_fdb_get(br, dest)) && dst->is_local) { skb2 = skb; /* Do not forward the packet since it's local. */ |