Date: Wed, 3 Aug 2011 04:28:16 +0000 (UTC) From: "Andrey V. Elsukov" <ae@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r224623 - stable/7/sys/netinet Message-ID: <201108030428.p734SGom085948@svn.freebsd.org>
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Author: ae Date: Wed Aug 3 04:28:16 2011 New Revision: 224623 URL: http://svn.freebsd.org/changeset/base/224623 Log: MFC r223753: ARP code reuses mbuf from ARP request to make a reply, but it does not reset rcvif to NULL. Since rcvif is not NULL, ipfw(4) supposes that ARP replies were received on specified interface. Reset rcvif to NULL for ARP replies to fix this issue. PR: kern/131817 Modified: stable/7/sys/netinet/if_ether.c Directory Properties: stable/7/sys/ (props changed) stable/7/sys/cddl/contrib/opensolaris/ (props changed) stable/7/sys/contrib/dev/acpica/ (props changed) stable/7/sys/contrib/pf/ (props changed) Modified: stable/7/sys/netinet/if_ether.c ============================================================================== --- stable/7/sys/netinet/if_ether.c Wed Aug 3 04:27:47 2011 (r224622) +++ stable/7/sys/netinet/if_ether.c Wed Aug 3 04:28:16 2011 (r224623) @@ -981,6 +981,7 @@ reply: ah->ar_pro = htons(ETHERTYPE_IP); /* let's be sure! */ m->m_len = sizeof(*ah) + (2 * ah->ar_pln) + (2 * ah->ar_hln); m->m_pkthdr.len = m->m_len; + m->m_pkthdr.rcvif = NULL; sa.sa_family = AF_ARP; sa.sa_len = 2; (*ifp->if_output)(ifp, m, &sa, (struct rtentry *)0);
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