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authorStephen Hemminger <shemminger@osdl.org>2005-11-04 03:33:23 +0300
committerArnaldo Carvalho de Melo <acme@mandriva.com>2005-11-06 02:23:15 +0300
commit6df716340da3a6fdd33d73d7ed4c6f7590ca1c42 (patch)
tree1b3ba3d1a0a08b9b4eaa624a66414b87a70b6fe9 /include/net/inet_hashtables.h
parent6151b31c9616d71f714fc7ef8e2306f67f3b94c3 (diff)
downloadlinux-6df716340da3a6fdd33d73d7ed4c6f7590ca1c42.tar.xz
[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 'include/net/inet_hashtables.h')
-rw-r--r--include/net/inet_hashtables.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index f50f95968340..07840baa9341 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -125,9 +125,7 @@ struct inet_hashinfo {
rwlock_t lhash_lock ____cacheline_aligned;
atomic_t lhash_users;
wait_queue_head_t lhash_wait;
- spinlock_t portalloc_lock;
kmem_cache_t *bind_bucket_cachep;
- int port_rover;
};
static inline unsigned int inet_ehashfn(const __u32 laddr, const __u16 lport,