diff options
| author | Ondrej Zajicek <santiago@crfreenet.org> | 2010-04-26 19:08:57 +0200 |
|---|---|---|
| committer | Ondrej Zajicek <santiago@crfreenet.org> | 2010-04-26 19:08:57 +0200 |
| commit | 9d1ee1388771a3caa6c23163571a80457adfab2c (patch) | |
| tree | 3d412b928c229cf7ec1cdaaf5df6a8107306be21 | |
| parent | 4e5fb4b60c59db3248fd12db2bc6f0424d798122 (diff) | |
Neighbors on OSPF broadcast networks should be identified by IP address, not RID.
Allows simple support for multiple interfaces to the same network.
| -rw-r--r-- | proto/ospf/packet.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/proto/ospf/packet.c b/proto/ospf/packet.c index e78eeea5..74ce5507 100644 --- a/proto/ospf/packet.c +++ b/proto/ospf/packet.c @@ -242,6 +242,19 @@ ospf_pkt_checkauth(struct ospf_neighbor *n, struct ospf_iface *ifa, struct ospf_ #endif +#ifdef OSPFv2 +static inline struct ospf_neighbor * +find_neigh_by_ip(struct ospf_iface *ifa, ip_addr ip) +{ + struct ospf_neighbor *n; + WALK_LIST(n, ifa->neigh_list) + if (ipa_equal(n->ip, ip)) + return n; + return NULL; +} +#endif + + /** * ospf_rx_hook @@ -419,10 +432,16 @@ ospf_rx_hook(sock *sk, int size) return 1; } - /* This is deviation from RFC 2328 - neighbours should be identified by - * IP address on broadcast and NBMA networks. - */ +#ifdef OSPFv2 + /* In OSPFv2, neighbors are identified by either IP or Router ID, base on network type */ + struct ospf_neighbor *n; + if ((ifa->type == OSPF_IT_BCAST) || (ifa->type == OSPF_IT_NBMA)) + n = find_neigh_by_ip(ifa, sk->faddr); + else + n = find_neigh(ifa, rid); +#else struct ospf_neighbor *n = find_neigh(ifa, rid); +#endif if(!n && (ps->type != HELLO_P)) { |