[src/netbsd-1-4]: src/sys/netinet Pullup of 1.78, which fixes the stack so th...

[kml <kml%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/70ddfdd66dfe
branches:  netbsd-1-4
changeset: 468162:70ddfdd66dfe
user:      kml <kml%NetBSD.org@localhost>
date:      Fri Apr 09 22:05:19 1999 +0000

description:
Pullup of 1.78, which fixes the stack so that out of window SYNs are ACKed.

diffstat:

 sys/netinet/tcp_input.c |  10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diffs (24 lines):

diff -r 32ff80dca05d -r 70ddfdd66dfe sys/netinet/tcp_input.c
--- a/sys/netinet/tcp_input.c   Fri Apr 09 21:31:09 1999 +0000
+++ b/sys/netinet/tcp_input.c   Fri Apr 09 22:05:19 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tcp_input.c,v 1.77 1999/02/05 22:37:24 matt Exp $      */
+/*     $NetBSD: tcp_input.c,v 1.77.2.1 1999/04/09 22:05:19 kml Exp $   */
 
 /*-
  * Copyright (c) 1997, 1998, 1999 The NetBSD Foundation, Inc.
@@ -1104,8 +1104,12 @@
        /*
         * If the ACK bit is off we drop the segment and return.
         */
-       if ((tiflags & TH_ACK) == 0)
-               goto drop;
+       if ((tiflags & TH_ACK) == 0) {
+               if (tp->t_flags & TF_ACKNOW)
+                       goto dropafterack;
+               else
+                       goto drop;
+       }
        
        /*
         * Ack processing.