diff options
| author | Eric Dumazet <edumazet@google.com> | 2012-07-24 05:19:31 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-25 00:54:15 +0400 |
| commit | 9cb429d692b341e972b12e6cd097364050ebbb26 (patch) | |
| tree | 39450b1d5650322fc6cffca581f34edbc06233ee /net/ipv4/ip_input.c | |
| parent | c20cd5d753a452807b080bbf390e2f844d7991b3 (diff) | |
| download | linux-9cb429d692b341e972b12e6cd097364050ebbb26.tar.xz | |
tcp: early_demux fixes
1) Remove a non needed pskb_may_pull() in tcp_v4_early_demux()
and fix a potential bug if skb->head was reallocated
(iph & th pointers were not reloaded)
TCP stack will pull/check headers anyway.
2) must reload iph in ip_rcv_finish() after early_demux()
call since skb->head might have changed.
3) skb->dev->ifindex can be now replaced by skb->skb_iif
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_input.c')
| -rw-r--r-- | net/ipv4/ip_input.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c index 4ebc6feee250..93134b0eab0c 100644 --- a/net/ipv4/ip_input.c +++ b/net/ipv4/ip_input.c @@ -326,8 +326,11 @@ static int ip_rcv_finish(struct sk_buff *skb) rcu_read_lock(); ipprot = rcu_dereference(inet_protos[protocol]); - if (ipprot && ipprot->early_demux) + if (ipprot && ipprot->early_demux) { ipprot->early_demux(skb); + /* must reload iph, skb->head might have changed */ + iph = ip_hdr(skb); + } rcu_read_unlock(); } |