diff options
| -rw-r--r-- | ospfd/ospf_packet.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/ospfd/ospf_packet.c b/ospfd/ospf_packet.c index 37223fbb..ab68bf0b 100644 --- a/ospfd/ospf_packet.c +++ b/ospfd/ospf_packet.c @@ -1823,6 +1823,27 @@ ospf_ls_upd (struct ip *iph, struct ospf_header *ospfh, DISCARD_LSA (lsa,2); } + /* VU229804: Router-LSA Adv-ID must be equal to LS-ID */ + if (lsa->data->type == OSPF_ROUTER_LSA) + if (!IPV4_ADDR_SAME(&lsa->data->id, &lsa->data->adv_router)) + { + char buf1[INET_ADDRSTRLEN]; + char buf2[INET_ADDRSTRLEN]; + char buf3[INET_ADDRSTRLEN]; + + zlog_err("Incoming Router-LSA from %s with " + "Adv-ID[%s] != LS-ID[%s]", + inet_ntop (AF_INET, &ospfh->router_id, + buf1, INET_ADDRSTRLEN), + inet_ntop (AF_INET, &lsa->data->id, + buf2, INET_ADDRSTRLEN), + inet_ntop (AF_INET, &lsa->data->adv_router, + buf3, INET_ADDRSTRLEN)); + zlog_err("OSPF domain compromised by attack or corruption. " + "Verify correct operation of -ALL- OSPF routers."); + DISCARD_LSA (lsa, 0); + } + /* Find the LSA in the current database. */ current = ospf_lsa_lookup_by_header (oi->area, lsa->data); |