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REALLY only update the window when we get an ACK. (the old code seemed broken)

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This commit is contained in:
explorer 1999-02-04 22:58:37 +00:00
parent 67b7e0e590
commit 25d32ef34d
1 changed files with 3 additions and 3 deletions
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6
sys/netinet/tcp_input.c
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@ -1,4 +1,4 @@
/* $NetBSD: tcp_input.c,v 1.75 1999/01/24 01:19:28 thorpej Exp $ */
/* $NetBSD: tcp_input.c,v 1.76 1999/02/04 22:58:37 explorer Exp $ */
/*-
* Copyright (c) 1997, 1998, 1999 The NetBSD Foundation, Inc.
@ -1379,9 +1379,9 @@ step6:
* Update window information.
* Don't look at window if no ACK: TAC's send garbage on first SYN.
*/
if (((tiflags & TH_ACK) && SEQ_LT(tp->snd_wl1, ti->ti_seq)) ||
if ((tiflags & TH_ACK) && (SEQ_LT(tp->snd_wl1, ti->ti_seq) ||
(tp->snd_wl1 == ti->ti_seq && SEQ_LT(tp->snd_wl2, ti->ti_ack)) ||
(tp->snd_wl2 == ti->ti_ack && tiwin > tp->snd_wnd)) {
(tp->snd_wl2 == ti->ti_ack && tiwin > tp->snd_wnd))) {
/* keep track of pure window updates */
if (ti->ti_len == 0 &&
tp->snd_wl2 == ti->ti_ack && tiwin > tp->snd_wnd)