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From: "Andrey V. Elsukov" <ae@FreeBSD.org>
Date: Wed, 6 Jul 2011 05:42:52 +0000 (UTC)
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Subject: svn commit: r223817 - stable/8/sys/netinet/ipfw
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Author: ae
Date: Wed Jul  6 05:42:52 2011
New Revision: 223817
URL: http://svn.freebsd.org/changeset/base/223817

Log:
  MFC r223358:
    Do not use SET_HOST_IPLEN() macro for IPv6 packets.
  
    PR:		kern/157239

Modified:
  stable/8/sys/netinet/ipfw/ip_dn_io.c
  stable/8/sys/netinet/ipfw/ip_fw_pfil.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/netinet/ipfw/ip_dn_io.c
==============================================================================
--- stable/8/sys/netinet/ipfw/ip_dn_io.c	Wed Jul  6 05:40:22 2011	(r223816)
+++ stable/8/sys/netinet/ipfw/ip_dn_io.c	Wed Jul  6 05:42:52 2011	(r223817)
@@ -664,7 +664,6 @@ dummynet_send(struct mbuf *m)
 			break;
 
 		case DIR_OUT | PROTO_IPV6:
-			SET_HOST_IPLEN(mtod(m, struct ip *));
 			ip6_output(m, NULL, NULL, IPV6_FORWARDING, NULL, NULL, NULL);
 			break;
 #endif

Modified: stable/8/sys/netinet/ipfw/ip_fw_pfil.c
==============================================================================
--- stable/8/sys/netinet/ipfw/ip_fw_pfil.c	Wed Jul  6 05:40:22 2011	(r223816)
+++ stable/8/sys/netinet/ipfw/ip_fw_pfil.c	Wed Jul  6 05:42:52 2011	(r223817)
@@ -127,8 +127,9 @@ again:
 		args.rule = *((struct ipfw_rule_ref *)(tag+1));
 		m_tag_delete(*m0, tag);
 		if (args.rule.info & IPFW_ONEPASS) {
-			SET_HOST_IPLEN(mtod(*m0, struct ip *));
-			return 0;
+			if (mtod(*m0, struct ip *)->ip_v == 4)
+				SET_HOST_IPLEN(mtod(*m0, struct ip *));
+			return (0);
 		}
 	}