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IFF_POINTTOPOINT interfaces can also transmit packets to broadcast 

destinations.
This commit is contained in:
thorpej 2002-02-07 21:47:45 +00:00
parent 6390142ec0
commit 35a343b018
1 changed files with 5 additions and 4 deletions
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9
sys/netinet/ip_output.c
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@ -1,4 +1,4 @@
/* $NetBSD: ip_output.c,v 1.94 2002/02/06 18:00:01 thorpej Exp $ */
/* $NetBSD: ip_output.c,v 1.95 2002/02/07 21:47:45 thorpej Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@ -102,7 +102,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ip_output.c,v 1.94 2002/02/06 18:00:01 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: ip_output.c,v 1.95 2002/02/07 21:47:45 thorpej Exp $");
#include "opt_pfil_hooks.h"
#include "opt_ipsec.h"
@ -303,12 +303,13 @@ ip_output(m0, va_alist)
} else
ip->ip_ttl = IP_DEFAULT_MULTICAST_TTL;
/*
* Confirm that the outgoing interface supports multicast.
* If the packet is multicast or broadcast, confirm that
* the outgoing interface can transmit it.
*/
if (((m->m_flags & M_MCAST) &&
(ifp->if_flags & IFF_MULTICAST) == 0) ||
((m->m_flags & M_BCAST) &&
(ifp->if_flags & IFF_BROADCAST) == 0)) {
(ifp->if_flags & (IFF_BROADCAST|IFF_POINTOPOINT)) == 0)) {
ipstat.ips_noroute++;
error = ENETUNREACH;
goto bad;