summaryrefslogtreecommitdiff
path: root/net/ipv4/tcp_ipv4.c
diff options
context:
space:
mode:
authorFlorian Westphal <fw@strlen.de>2010-06-03 00:43:44 +0000
committerDavid S. Miller <davem@davemloft.net>2010-06-05 02:23:14 -0700
commitaf9b4738574b46025de7ccbe75c7b24fd8914379 (patch)
tree6d05b82261ce76e6ecf00131c667292b62d16adf /net/ipv4/tcp_ipv4.c
parent2a1d4bd46047efff513600d7ff422bc344f540a6 (diff)
syncookies: avoid unneeded tcp header flag double check
caller: if (!th->rst && !th->syn && th->ack) callee: if (!th->ack) make the caller only check for !syn (common for 3whs), and move the !rst / ack test to the callee. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index a13f881e5037..6558dfd899da 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1506,7 +1506,7 @@ static struct sock *tcp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
}
#ifdef CONFIG_SYN_COOKIES
- if (!th->rst && !th->syn && th->ack)
+ if (!th->syn)
sk = cookie_v4_check(sk, skb, &(IPCB(skb)->opt));
#endif
return sk;