[src/trunk]: src/sys/netinet Prevent reception of packets on downed interface...

[proff <proff%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/56b7a46d05b3
branches:  trunk
changeset: 471660:56b7a46d05b3
user:      proff <proff%NetBSD.org@localhost>
date:      Wed Apr 07 02:31:05 1999 +0000

description:
Prevent reception of packets on downed interfaces (via an up interface).
fixes kern/7327

diffstat:

 sys/netinet/ip_input.c |  7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diffs (21 lines):

diff -r b2f2d30149f1 -r 56b7a46d05b3 sys/netinet/ip_input.c
--- a/sys/netinet/ip_input.c    Wed Apr 07 00:44:02 1999 +0000
+++ b/sys/netinet/ip_input.c    Wed Apr 07 02:31:05 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ip_input.c,v 1.82 1999/03/27 01:24:49 aidan Exp $      */
+/*     $NetBSD: ip_input.c,v 1.83 1999/04/07 02:31:05 proff Exp $      */
 
 /*-
  * Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -420,7 +420,10 @@
         * Check our list of addresses, to see if the packet is for us.
         */
        INADDR_TO_IA(ip->ip_dst, ia);
-       if (ia != NULL) goto ours;
+       if (ia != NULL) {
+               if (ia->ia_ifp->if_flags & IFF_UP)
+                       goto ours;
+       }
        if (m->m_pkthdr.rcvif->if_flags & IFF_BROADCAST) {
                for (ifa = m->m_pkthdr.rcvif->if_addrlist.tqh_first;
                    ifa != NULL; ifa = ifa->ifa_list.tqe_next) {