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Clear mbuf checksum flags before passing it to ip6_output(). We might

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recycle a mbuf which contained a hardware provided checksum. This
fixes "traceroute6" to a machine which is using a wm(4) interface
that has UDP or TCP checksum offload enabled.
This commit is contained in:
tron 2006-07-11 22:13:56 +00:00
parent e16c6a6b67
commit 8fe4e4040d
1 changed files with 3 additions and 2 deletions
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5
sys/netinet6/icmp6.c
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@ -1,4 +1,4 @@
/* $NetBSD: icmp6.c,v 1.117 2006/06/07 22:34:02 kardel Exp $ */
/* $NetBSD: icmp6.c,v 1.118 2006/07/11 22:13:56 tron Exp $ */
/* $KAME: icmp6.c,v 1.217 2001/06/20 15:03:29 jinmei Exp $ */
/*
@ -62,7 +62,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: icmp6.c,v 1.117 2006/06/07 22:34:02 kardel Exp $");
__KERNEL_RCSID(0, "$NetBSD: icmp6.c,v 1.118 2006/07/11 22:13:56 tron Exp $");
#include "opt_inet.h"
#include "opt_ipsec.h"
@ -2128,6 +2128,7 @@ icmp6_reflect(m, off)
} else
ip6->ip6_hlim = ip6_defhlim;
m->m_pkthdr.csum_flags = 0;
icmp6->icmp6_cksum = 0;
icmp6->icmp6_cksum = in6_cksum(m, IPPROTO_ICMPV6,
sizeof(struct ip6_hdr), plen);