diff options
author | Jun-ichiro itojun Hagino <itojun@cvs.openbsd.org> | 2000-06-03 13:42:34 +0000 |
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committer | Jun-ichiro itojun Hagino <itojun@cvs.openbsd.org> | 2000-06-03 13:42:34 +0000 |
commit | 41139e24cad367ca2f7140351bb0e3808d3831d6 (patch) | |
tree | ee2c3a82298945fee2991639a2025798228a0b1e | |
parent | a87e5eba6bbd992103852fcfd261289bed60ffc5 (diff) |
do not bark even if forwarding to loopback, since it is common
to route packet to be rejected/dropped to loopback. (sync with kame)
-rw-r--r-- | sys/netinet6/ip6_forward.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/sys/netinet6/ip6_forward.c b/sys/netinet6/ip6_forward.c index 3c4d01f33aa..f411e75d8cb 100644 --- a/sys/netinet6/ip6_forward.c +++ b/sys/netinet6/ip6_forward.c @@ -1,5 +1,5 @@ -/* $OpenBSD: ip6_forward.c,v 1.6 2000/05/19 20:12:10 itojun Exp $ */ -/* $KAME: ip6_forward.c,v 1.36 2000/05/19 19:10:06 itojun Exp $ */ +/* $OpenBSD: ip6_forward.c,v 1.7 2000/06/03 13:42:33 itojun Exp $ */ +/* $KAME: ip6_forward.c,v 1.37 2000/05/28 12:17:19 itojun Exp $ */ /* * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. @@ -440,12 +440,18 @@ ip6_forward(m, srcrt) * XXX: but is it possible that ip6_forward() sends a packet * to a loopback interface? I don't think so, and thus * I bark here. (jinmei@kame.net) + * XXX: it is common to route invalid packets to loopback. + * (itojun) */ - printf("ip6_forward: outgoing interface is loopback. " - "src %s, dst %s, nxt %d, rcvif %s, outif %s\n", - ip6_sprintf(&ip6->ip6_src), ip6_sprintf(&ip6->ip6_dst), - ip6->ip6_nxt, if_name(m->m_pkthdr.rcvif), - if_name(rt->rt_ifp)); + + if ((rt->rt_flags & (RTF_BLACKHOLE|RTF_REJECT)) == 0) { + printf("ip6_forward: outgoing interface is loopback. " + "src %s, dst %s, nxt %d, rcvif %s, outif %s\n", + ip6_sprintf(&ip6->ip6_src), + ip6_sprintf(&ip6->ip6_dst), + ip6->ip6_nxt, if_name(m->m_pkthdr.rcvif), + if_name(rt->rt_ifp)); + } if (IN6_IS_SCOPE_LINKLOCAL(&ip6->ip6_src)) origifp = ifindex2ifnet[ntohs(ip6->ip6_src.s6_addr16[1])]; |