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net: Discard and warn about LRO'd skbs received for forwarding

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Add skb_warn_if_lro() to test whether an skb was received with LRO and
warn if so.

Change br_forward(), ip_forward() and ip6_forward() to call it) and
discard the skb if it returns true.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings
2008-06-19 16:22:28 -07:00
committed by David S. Miller
parent 0187bdfb05
commit 4497b0763c
5 changed files with 29 additions and 1 deletions
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3
net/ipv6/ip6_output.c
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@@ -407,6 +407,9 @@ int ip6_forward(struct sk_buff *skb)
if (ipv6_devconf.forwarding == 0)
goto error;
if (skb_warn_if_lro(skb))
goto drop;
if (!xfrm6_policy_check(NULL, XFRM_POLICY_FWD, skb)) {
IP6_INC_STATS(ip6_dst_idev(dst), IPSTATS_MIB_INDISCARDS);
goto drop;