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Diffstat (limited to 'sys/netinet/ip_input.c')
-rw-r--r--sys/netinet/ip_input.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c
index 23ed1aa375e..e8177a35e42 100644
--- a/sys/netinet/ip_input.c
+++ b/sys/netinet/ip_input.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ip_input.c,v 1.180 2010/06/04 11:35:43 blambert Exp $ */
+/* $OpenBSD: ip_input.c,v 1.181 2010/06/07 13:26:35 henning Exp $ */
/* $NetBSD: ip_input.c,v 1.30 1996/03/16 23:53:58 christos Exp $ */
/*
@@ -691,10 +691,13 @@ in_iawithaddr(struct in_addr ina, struct mbuf *m, u_int rdomain)
(IFF_LOOPBACK|IFF_LINK1) &&
ia->ia_net == (ina.s_addr & ia->ia_netmask)))
return ia;
+ /* check ancient classful too, e. g. for rarp-based netboot */
if (((ip_directedbcast == 0) || (m && ip_directedbcast &&
ia->ia_ifp == m->m_pkthdr.rcvif)) &&
(ia->ia_ifp->if_flags & IFF_BROADCAST)) {
- if (ina.s_addr == ia->ia_broadaddr.sin_addr.s_addr) {
+ if (ina.s_addr == ia->ia_broadaddr.sin_addr.s_addr ||
+ IN_CLASSFULBROADCAST(ina.s_addr,
+ ia->ia_addr.sin_addr.s_addr)) {
/* Make sure M_BCAST is set */
if (m)
m->m_flags |= M_BCAST;