Module Name: src
Committed By: roy
Date: Sat Feb 11 15:37:30 UTC 2017
Modified Files:
src/sys/netinet: if_arp.c
Log Message:
Allow Unicast Poll from RFC 1122 to bypass DaD checking.
To generate a diff of this commit:
cvs rdiff -u -r1.241 -r1.242 src/sys/netinet/if_arp.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/netinet/if_arp.c
diff -u src/sys/netinet/if_arp.c:1.241 src/sys/netinet/if_arp.c:1.242
--- src/sys/netinet/if_arp.c:1.241 Tue Feb 7 02:38:08 2017
+++ src/sys/netinet/if_arp.c Sat Feb 11 15:37:30 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: if_arp.c,v 1.241 2017/02/07 02:38:08 ozaki-r Exp $ */
+/* $NetBSD: if_arp.c,v 1.242 2017/02/11 15:37:30 roy Exp $ */
/*-
* Copyright (c) 1998, 2000, 2008 The NetBSD Foundation, Inc.
@@ -68,7 +68,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_arp.c,v 1.241 2017/02/07 02:38:08 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_arp.c,v 1.242 2017/02/11 15:37:30 roy Exp $");
#ifdef _KERNEL_OPT
#include "opt_ddb.h"
@@ -1161,7 +1161,8 @@ in_arpinput(struct mbuf *m)
/* DAD check, RFC 5227 */
if (in_hosteq(isaddr, myaddr) ||
- (in_nullhost(isaddr) && in_hosteq(itaddr, myaddr)))
+ (in_nullhost(isaddr) && in_hosteq(itaddr, myaddr)
+ && ISSET(m->m_flags, M_BCAST))) /* Allow Unicast Poll, RFC 1122 */
{
arp_dad_duplicated((struct ifaddr *)ia,
lla_snprintf(llabuf, ar_sha(ah), ah->ar_hln));
