Author: ae
Date: Wed Aug 3 04:27:47 2011
New Revision: 224622
URL: http://svn.freebsd.org/changeset/base/224622
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/8/sys/netinet/if_ether.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/if_ether.c
==============================================================================
--- stable/8/sys/netinet/if_ether.c Wed Aug 3 03:52:15 2011
(r224621)
+++ stable/8/sys/netinet/if_ether.c Wed Aug 3 04:27:47 2011
(r224622)
@@ -843,6 +843,7 @@ 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, NULL);
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