diff options
| author | Florian Westphal <fw@strlen.de> | 2010-06-03 00:43:44 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-05 02:23:14 -0700 |
| commit | af9b4738574b46025de7ccbe75c7b24fd8914379 (patch) | |
| tree | 6d05b82261ce76e6ecf00131c667292b62d16adf /net/ipv6/tcp_ipv6.c | |
| parent | 2a1d4bd46047efff513600d7ff422bc344f540a6 (diff) | |
| download | lwn-af9b4738574b46025de7ccbe75c7b24fd8914379.tar.gz lwn-af9b4738574b46025de7ccbe75c7b24fd8914379.zip | |
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/ipv6/tcp_ipv6.c')
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index e487080d02db..5887141ad641 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1157,7 +1157,7 @@ static struct sock *tcp_v6_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_v6_check(sk, skb); #endif return sk; |