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| author | Stephen Hemminger <shemminger@linux-foundation.org> | 2007-04-25 22:05:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:30:01 -0700 |
| commit | 2111f8b9e58fd04b87b8b07d66485f255a57b0bb (patch) | |
| tree | aaeb558abcc903e8d4960368e7a4650c4ef6f4e9 /net | |
| parent | 83aa0938ff59e8ef6d0b99260063ebe84fc84a16 (diff) | |
| download | op-kernel-dev-2111f8b9e58fd04b87b8b07d66485f255a57b0bb.zip op-kernel-dev-2111f8b9e58fd04b87b8b07d66485f255a57b0bb.tar.gz | |
[BRIDGE]: drop PAUSE frames
Pause frames should never make it out of the network device into
the stack. But if a device was misconfigured, it might happen.
So drop pause frames in bridge.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bridge/br_input.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index 364e0ba..5662567 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -131,9 +131,14 @@ struct sk_buff *br_handle_frame(struct net_bridge_port *p, struct sk_buff *skb) if (!is_valid_ether_addr(eth_hdr(skb)->h_source)) goto drop; - if (unlikely(is_link_local(dest))) + if (unlikely(is_link_local(dest))) { + /* Pause frames shouldn't be passed up by driver anyway */ + if (skb->protocol == htons(ETH_P_PAUSE)) + goto drop; + return (NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_IN, skb, skb->dev, NULL, br_handle_local_finish) == 0) ? skb : NULL; + } switch (p->state) { case BR_STATE_FORWARDING: |
