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| author | Stephen Hemminger <shemminger@osdl.org> | 2005-11-03 16:33:23 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@mandriva.com> | 2005-11-05 21:23:15 -0200 |
| commit | 6df716340da3a6fdd33d73d7ed4c6f7590ca1c42 (patch) | |
| tree | 1b3ba3d1a0a08b9b4eaa624a66414b87a70b6fe9 /net/ipv4/tcp_ipv4.c | |
| parent | 6151b31c9616d71f714fc7ef8e2306f67f3b94c3 (diff) | |
| download | op-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.c | 2 |
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) |
