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authortholo <tholo@openbsd.org>1996-08-07 06:36:26 +0000
committertholo <tholo@openbsd.org>1996-08-07 06:36:26 +0000
commit9331c301a4687bacb4130547942483a39d79f17d (patch)
tree9e0fc445f2af958055935993a455bd47f7d47ee6 /sys/netinet/tcp_input.c
parentsetlogin(username) (diff)
downloadwireguard-openbsd-9331c301a4687bacb4130547942483a39d79f17d.tar.xz
wireguard-openbsd-9331c301a4687bacb4130547942483a39d79f17d.zip
Partial protection from TCP SYN attacks
Diffstat (limited to 'sys/netinet/tcp_input.c')
-rw-r--r--sys/netinet/tcp_input.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c
index 21f112a7dd8..8b7da3d6e30 100644
--- a/sys/netinet/tcp_input.c
+++ b/sys/netinet/tcp_input.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tcp_input.c,v 1.5 1996/07/29 22:01:50 niklas Exp $ */
+/* $OpenBSD: tcp_input.c,v 1.6 1996/08/07 06:36:26 tholo Exp $ */
/* $NetBSD: tcp_input.c,v 1.23 1996/02/13 23:43:44 christos Exp $ */
/*
@@ -424,7 +424,8 @@ findpcb:
* Reset idle time and keep-alive timer.
*/
tp->t_idle = 0;
- tp->t_timer[TCPT_KEEP] = tcp_keepidle;
+ if (tp->t_state != TCPS_SYN_RECEIVED)
+ tp->t_timer[TCPT_KEEP] = tcp_keepidle;
/*
* Process options if not in LISTEN state,