Module Name: src
Committed By: christos
Date: Mon Mar 8 17:53:20 UTC 2021
Modified Files:
src/sys/netinet: tcp_subr.c
Log Message:
Don't increment the iss sequence on each connection because it exposes
information (Amit Klein)
To generate a diff of this commit:
cvs rdiff -u -r1.285 -r1.286 src/sys/netinet/tcp_subr.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/netinet/tcp_subr.c
diff -u src/sys/netinet/tcp_subr.c:1.285 src/sys/netinet/tcp_subr.c:1.286
--- src/sys/netinet/tcp_subr.c:1.285 Sun Mar 7 09:58:54 2021
+++ src/sys/netinet/tcp_subr.c Mon Mar 8 12:53:20 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: tcp_subr.c,v 1.285 2021/03/07 14:58:54 christos Exp $ */
+/* $NetBSD: tcp_subr.c,v 1.286 2021/03/08 17:53:20 christos Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -91,7 +91,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tcp_subr.c,v 1.285 2021/03/07 14:58:54 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tcp_subr.c,v 1.286 2021/03/08 17:53:20 christos Exp $");
#ifdef _KERNEL_OPT
#include "opt_inet.h"
@@ -2216,7 +2216,6 @@ tcp_new_iss1(void *laddr, void *faddr, u
* XXX Use `addin'?
* XXX TCP_ISSINCR too large to use?
*/
- tcp_iss_seq += TCP_ISSINCR;
#ifdef TCPISS_DEBUG
printf("ISS hash 0x%08x, ", tcp_iss);
#endif
@@ -2252,7 +2251,6 @@ tcp_new_iss1(void *laddr, void *faddr, u
} else {
tcp_iss &= TCP_ISS_RANDOM_MASK;
tcp_iss += tcp_iss_seq;
- tcp_iss_seq += TCP_ISSINCR;
#ifdef TCPISS_DEBUG
printf("ISS %08x\n", tcp_iss);
#endif
