diff options
| author | Niels Provos <provos@cvs.openbsd.org> | 2001-06-14 18:00:03 +0000 |
|---|---|---|
| committer | Niels Provos <provos@cvs.openbsd.org> | 2001-06-14 18:00:03 +0000 |
| commit | cd048a35906aa4c3661cef4f9d8b60e4561d1c7f (patch) | |
| tree | c458f9fe589041a8a1581373e1445b5d030e4d9e /sys | |
| parent | 7092148fc00b8090b808d58567aebb003dca93ab (diff) | |
limited broadcast 255.255.255.255 was not recognized correctly, reported
by crh@ubiqx.mn.org, fix from NetBSD; okay angelos@
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/netinet/ip_output.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/sys/netinet/ip_output.c b/sys/netinet/ip_output.c index 180412f42ec..b3b0e6ed34c 100644 --- a/sys/netinet/ip_output.c +++ b/sys/netinet/ip_output.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ip_output.c,v 1.102 2001/06/12 10:59:53 angelos Exp $ */ +/* $OpenBSD: ip_output.c,v 1.103 2001/06/14 18:00:02 provos Exp $ */ /* $NetBSD: ip_output.c,v 1.28 1996/02/13 23:43:07 christos Exp $ */ /* @@ -400,10 +400,12 @@ ip_output(m0, va_alist) ip->ip_src = ia->ia_addr.sin_addr; } - if (IN_MULTICAST(ip->ip_dst.s_addr)) { + if (IN_MULTICAST(ip->ip_dst.s_addr) || + (ip->ip_dst.s_addr == INADDR_BROADCAST)) { struct in_multi *inm; - m->m_flags |= M_MCAST; + m->m_flags |= (ip->ip_dst.s_addr == INADDR_BROADCAST) ? + M_BCAST : M_MCAST; /* * IP destination address is multicast. Make sure "dst" @@ -427,7 +429,10 @@ ip_output(m0, va_alist) * but only if the packet actually is going out on that * interface (i.e., no IPsec is applied). */ - if (((ifp->if_flags & IFF_MULTICAST) == 0) && (sproto == 0)) { + if ((((m->m_flags & M_MCAST) && + (ifp->if_flags & IFF_MULTICAST) == 0) || + ((m->m_flags & M_BCAST) && + (ifp->if_flags & IFF_BROADCAST) == 0)) && (sproto == 0)) { ipstat.ips_noroute++; error = ENETUNREACH; goto bad; |