diff options
Diffstat (limited to 'usr.sbin/ospfd/packet.c')
| -rw-r--r-- | usr.sbin/ospfd/packet.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/usr.sbin/ospfd/packet.c b/usr.sbin/ospfd/packet.c index 2f0ba92a85f..714ad0e45ef 100644 --- a/usr.sbin/ospfd/packet.c +++ b/usr.sbin/ospfd/packet.c @@ -1,4 +1,4 @@ -/* $OpenBSD: packet.c,v 1.9 2005/05/26 19:54:49 norby Exp $ */ +/* $OpenBSD: packet.c,v 1.10 2005/05/27 07:24:51 norby Exp $ */ /* * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org> @@ -50,7 +50,8 @@ gen_ospf_hdr(struct buf *buf, struct iface *iface, u_int8_t type) ospf_hdr.version = OSPF_VERSION; ospf_hdr.type = type; ospf_hdr.rtr_id = iface->rtr_id.s_addr; - ospf_hdr.area_id = iface->area->id.s_addr; + if (iface->type != IF_TYPE_VIRTUALLINK) + ospf_hdr.area_id = iface->area->id.s_addr; ospf_hdr.auth_type = htons(iface->auth_type); return (buf_add(buf, &ospf_hdr, sizeof(ospf_hdr))); @@ -240,12 +241,19 @@ ospf_hdr_sanity_check(const struct ip *ip_hdr, struct ospf_hdr *ospf_hdr, return (-1); } - if (ospf_hdr->area_id != iface->area->id.s_addr) { - /* TODO backbone area is allowed for virtual links */ - addr.s_addr = ospf_hdr->area_id; - log_debug("recv_packet: invalid area ID %s, interface %s", - inet_ntoa(addr), iface->name); - return (-1); + if (iface->type != IF_TYPE_VIRTUALLINK) { + if (ospf_hdr->area_id != iface->area->id.s_addr) { + addr.s_addr = ospf_hdr->area_id; + log_debug("recv_packet: invalid area ID %s, " + "interface %s", inet_ntoa(addr), iface->name); + return (-1); + } + } else { + if (ospf_hdr->area_id != 0) { + log_debug("recv_packet: invalid area ID %s, " + "interface %s",iface->name); + return (-1); + } } if (iface->type == IF_TYPE_BROADCAST || iface->type == IF_TYPE_NBMA) { @@ -280,10 +288,20 @@ find_iface(struct ospfd_conf *xconf, struct in_addr src) if (iface->fd > 0 && (iface->addr.s_addr & iface->mask.s_addr) == (src.s_addr & - iface->mask.s_addr) && !iface->passive) + iface->mask.s_addr) && !iface->passive && + iface->type != IF_TYPE_VIRTUALLINK) { return (iface); + } } } + LIST_FOREACH(area, &xconf->area_list, entry) + LIST_FOREACH(iface, &area->iface_list, entry) + if ((iface->type == IF_TYPE_VIRTUALLINK) && + (src.s_addr == iface->dst.s_addr)) { + return (iface); + } + + return (NULL); } |