From 2051f11fb86b0056fec440fe7e9fa8370d60a5c6 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Sun, 23 Mar 2008 22:21:28 -0700 Subject: [TCP]: Shrink syncookie_secret by 8 byte. the first u32 copied from syncookie_secret is overwritten by the minute-counter four lines below. After adjusting the destination address, the size of syncookie_secret can be reduced accordingly. AFAICS, the only other user of syncookie_secret[] is the ipv6 syncookie support. Because ipv6 syncookies only grab 44 bytes from syncookie_secret[], this shouldn't affect them in any way. With fixes from Glenn Griffin. Signed-off-by: Florian Westphal Acked-by: Glenn Griffin Signed-off-by: David S. Miller --- net/ipv6/syncookies.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/ipv6') diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c index 827c5aa7524..3a622e7abc0 100644 --- a/net/ipv6/syncookies.c +++ b/net/ipv6/syncookies.c @@ -22,7 +22,7 @@ #include extern int sysctl_tcp_syncookies; -extern __u32 syncookie_secret[2][16-3+SHA_DIGEST_WORDS]; +extern __u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS]; #define COOKIEBITS 24 /* Upper bits store count */ #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1) -- cgit v1.2.3