[src/trunk]: src/sys/netinet comments

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

details:   https://anonhg.NetBSD.org/src/rev/364aad5f00f1
branches:  trunk
changeset: 764253:364aad5f00f1
user:      yamt <yamt%NetBSD.org@localhost>
date:      Thu Apr 14 15:48:48 2011 +0000

description:
comments

diffstat:

 sys/netinet/tcp_input.c |  13 ++++++++++---
 1 files changed, 10 insertions(+), 3 deletions(-)

diffs (41 lines):

diff -r 0f08a080b512 -r 364aad5f00f1 sys/netinet/tcp_input.c
--- a/sys/netinet/tcp_input.c   Thu Apr 14 15:45:27 2011 +0000
+++ b/sys/netinet/tcp_input.c   Thu Apr 14 15:48:48 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tcp_input.c,v 1.307 2011/03/09 00:44:23 yamt Exp $     */
+/*     $NetBSD: tcp_input.c,v 1.308 2011/04/14 15:48:48 yamt Exp $     */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -145,7 +145,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tcp_input.c,v 1.307 2011/03/09 00:44:23 yamt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tcp_input.c,v 1.308 2011/04/14 15:48:48 yamt Exp $");
 
 #include "opt_inet.h"
 #include "opt_ipsec.h"
@@ -1685,7 +1685,7 @@
                 * Calculate the RTT from the returned time stamp and the
                 * connection's time base.  If the time stamp is later than
                 * the current time, or is extremely old, fall back to non-1323
-                * RTT calculation.  Since ts_ecr is unsigned, we can test both
+                * RTT calculation.  Since ts_rtt is unsigned, we can test both
                 * at the same time.
                 */
                ts_rtt = TCP_TIMESTAMP(tp) - opti.ts_ecr + 1;
@@ -2990,6 +2990,13 @@
 }
 #endif
 
+/*
+ * tcp_dooptions: parse and process tcp options.
+ *
+ * returns -1 if this segment should be dropped.  (eg. wrong signature)
+ * otherwise returns 0.
+ */
+
 static int
 tcp_dooptions(struct tcpcb *tp, const u_char *cp, int cnt,
     struct tcphdr *th,