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bridge: Add a flag to control unicast packet flood.

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Add a flag to control flood of unicast traffic.  By default, flood is
on and the bridge will flood unicast traffic if it doesn't know
the destination.  When the flag is turned off, unicast traffic
without an FDB will not be forwarded to the specified port.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich
2013-06-05 10:08:01 -04:00
committed by David S. Miller
parent 9ba18891f7
commit 867a59436f
8 changed files with 32 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/bridge/br_device.c
+4 -4
View File
@@ -58,10 +58,10 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
skb_pull(skb, ETH_HLEN);
if (is_broadcast_ether_addr(dest))
br_flood_deliver(br, skb);
br_flood_deliver(br, skb, false);
else if (is_multicast_ether_addr(dest)) {
if (unlikely(netpoll_tx_running(dev))) {
br_flood_deliver(br, skb);
br_flood_deliver(br, skb, false);
goto out;
}
if (br_multicast_rcv(br, NULL, skb)) {
@@ -73,11 +73,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb))
br_multicast_deliver(mdst, skb);
else
br_flood_deliver(br, skb);
br_flood_deliver(br, skb, false);
} else if ((dst = __br_fdb_get(br, dest, vid)) != NULL)
br_deliver(dst->dst, skb);
else
br_flood_deliver(br, skb);
br_flood_deliver(br, skb, true);
out:
rcu_read_unlock();