[src/trunk]: src/sys/netipsec Fix the IPIP_STAT_IBYTES stats; we did m_adj(m,...

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

details:   https://anonhg.NetBSD.org/src/rev/d4beee0e7718
branches:  trunk
changeset: 829861:d4beee0e7718
user:      maxv <maxv%NetBSD.org@localhost>
date:      Thu Feb 15 10:28:49 2018 +0000

description:
Fix the IPIP_STAT_IBYTES stats; we did m_adj(m, iphlen) which substracted
iphlen, so no need to re-substract it again.

diffstat:

 sys/netipsec/xform_ipip.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (29 lines):

diff -r 04877d2d533f -r d4beee0e7718 sys/netipsec/xform_ipip.c
--- a/sys/netipsec/xform_ipip.c Thu Feb 15 10:21:39 2018 +0000
+++ b/sys/netipsec/xform_ipip.c Thu Feb 15 10:28:49 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: xform_ipip.c,v 1.61 2018/02/15 10:21:39 maxv Exp $     */
+/*     $NetBSD: xform_ipip.c,v 1.62 2018/02/15 10:28:49 maxv Exp $     */
 /*     $FreeBSD: src/sys/netipsec/xform_ipip.c,v 1.3.2.1 2003/01/24 05:11:36 sam Exp $ */
 /*     $OpenBSD: ip_ipip.c,v 1.25 2002/06/10 18:04:55 itojun Exp $ */
 
@@ -39,7 +39,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: xform_ipip.c,v 1.61 2018/02/15 10:21:39 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: xform_ipip.c,v 1.62 2018/02/15 10:28:49 maxv Exp $");
 
 /*
  * IP-inside-IP processing
@@ -319,8 +319,8 @@
                pserialize_read_exit(s);
        }
 
-       /* Statistics */
-       IPIP_STATADD(IPIP_STAT_IBYTES, m->m_pkthdr.len - iphlen);
+       /* Statistics: m->m_pkthdr.len is the length of the inner packet */
+       IPIP_STATADD(IPIP_STAT_IBYTES, m->m_pkthdr.len);
 
        /*
         * Interface pointer stays the same; if no IPsec processing has