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authorStephen Hemminger <shemminger@osdl.org>2005-11-03 16:33:23 -0800
committerArnaldo Carvalho de Melo <acme@mandriva.com>2005-11-05 21:23:15 -0200
commit6df716340da3a6fdd33d73d7ed4c6f7590ca1c42 (patch)
tree1b3ba3d1a0a08b9b4eaa624a66414b87a70b6fe9 /net/ipv4/tcp_ipv4.c
parent6151b31c9616d71f714fc7ef8e2306f67f3b94c3 (diff)
downloadop-kernel-dev-6df716340da3a6fdd33d73d7ed4c6f7590ca1c42.zip
op-kernel-dev-6df716340da3a6fdd33d73d7ed4c6f7590ca1c42.tar.gz
[TCP/DCCP]: Randomize port selection
This patch randomizes the port selected on bind() for connections to help with possible security attacks. It should also be faster in most cases because there is no need for a global lock. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index c85819d..49d67cd 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -93,8 +93,6 @@ struct inet_hashinfo __cacheline_aligned tcp_hashinfo = {
.lhash_lock = RW_LOCK_UNLOCKED,
.lhash_users = ATOMIC_INIT(0),
.lhash_wait = __WAIT_QUEUE_HEAD_INITIALIZER(tcp_hashinfo.lhash_wait),
- .portalloc_lock = SPIN_LOCK_UNLOCKED,
- .port_rover = 1024 - 1,
};
static int tcp_v4_get_port(struct sock *sk, unsigned short snum)
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