diff options
Diffstat (limited to 'bgpd/bgp_routemap.c')
| -rw-r--r-- | bgpd/bgp_routemap.c | 161 |
1 files changed, 158 insertions, 3 deletions
diff --git a/bgpd/bgp_routemap.c b/bgpd/bgp_routemap.c index 261f6b87..c49c2e99 100644 --- a/bgpd/bgp_routemap.c +++ b/bgpd/bgp_routemap.c @@ -95,6 +95,103 @@ o Local extention */ + /* 'match peer (A.B.C.D|X:X::X:X)' */ + +/* Compares the peer specified in the 'match peer' clause with the peer + received in bgp_info->peer. If it is the same, or if the peer structure + received is a peer_group containing it, returns RMAP_MATCH. */ +route_map_result_t +route_match_peer (void *rule, struct prefix *prefix, route_map_object_t type, + void *object) +{ + union sockunion *su; + union sockunion *su2; + struct peer_group *group; + struct peer *peer; + struct listnode *nn; + + if (type == RMAP_BGP) + { + su = rule; + peer = ((struct bgp_info *) object)->peer; + + if ( ! CHECK_FLAG (peer->rmap_type, PEER_RMAP_TYPE_IMPORT) && + ! CHECK_FLAG (peer->rmap_type, PEER_RMAP_TYPE_EXPORT) ) + return RMAP_NOMATCH; + + /* If su='0.0.0.0' (command 'match peer local'), and it's a NETWORK, + REDISTRIBUTE or DEFAULT_GENERATED route => return RMAP_MATCH */ + su2 = sockunion_str2su ("0.0.0.0"); + if ( sockunion_same (su, su2) ) + { + if ( CHECK_FLAG (peer->rmap_type, PEER_RMAP_TYPE_NETWORK) || + CHECK_FLAG (peer->rmap_type, PEER_RMAP_TYPE_REDISTRIBUTE) || + CHECK_FLAG (peer->rmap_type, PEER_RMAP_TYPE_DEFAULT)) + { + XFREE (MTYPE_SOCKUNION, su2); + + return RMAP_MATCH; + } + else + return RMAP_NOMATCH; + } + XFREE (MTYPE_SOCKUNION, su2); + + if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) + { + if (sockunion_same (su, &peer->su)) + return RMAP_MATCH; + + return RMAP_NOMATCH; + } + else + { + group = peer->group; + LIST_LOOP (group->peer, peer, nn) + { + if (sockunion_same (su, &peer->su)) + return RMAP_MATCH; + + return RMAP_NOMATCH; + } + } + } + return RMAP_NOMATCH; +} + +void * +route_match_peer_compile (char *arg) +{ + union sockunion *su; + int ret; + + su = XMALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (union sockunion)); + + ret = str2sockunion ( (arg)? arg : "0.0.0.0", su); + if (ret < 0) { + XFREE (MTYPE_ROUTE_MAP_COMPILED, su); + return NULL; + } + + return su; +} + +/* Free route map's compiled `ip address' value. */ +void +route_match_peer_free (void *rule) +{ + XFREE (MTYPE_ROUTE_MAP_COMPILED, rule); +} + +/* Route map commands for ip address matching. */ +struct route_map_rule_cmd route_match_peer_cmd = +{ + "peer", + route_match_peer, + route_match_peer_compile, + route_match_peer_free +}; + /* `match ip address IP_ACCESS_LIST' */ /* Match function should return 1 if match is success else return @@ -643,7 +740,8 @@ route_set_ip_nexthop (void *rule, struct prefix *prefix, if (rins->peer_address) { - if (CHECK_FLAG (peer->rmap_type, PEER_RMAP_TYPE_IN) + if ((CHECK_FLAG (peer->rmap_type, PEER_RMAP_TYPE_IN) || + CHECK_FLAG (peer->rmap_type, PEER_RMAP_TYPE_IMPORT)) && peer->su_remote && sockunion_family (peer->su_remote) == AF_INET) { @@ -1974,7 +2072,7 @@ bgp_route_map_update (char *unused) { filter = &peer->filter[afi][safi]; - for (direct = FILTER_IN; direct < FILTER_MAX; direct++) + for (direct = RMAP_IN; direct < RMAP_MAX; direct++) { if (filter->map[direct].name) filter->map[direct].map = @@ -1996,7 +2094,7 @@ bgp_route_map_update (char *unused) { filter = &group->conf->filter[afi][safi]; - for (direct = FILTER_IN; direct < FILTER_MAX; direct++) + for (direct = RMAP_IN; direct < RMAP_MAX; direct++) { if (filter->map[direct].name) filter->map[direct].map = @@ -2064,6 +2162,57 @@ bgp_route_map_update (char *unused) } } +DEFUN (match_peer, + match_peer_cmd, + "match peer (A.B.C.D|X:X::X:X)", + MATCH_STR + "Match peer address\n" + "IPv6 address of peer\n" + "IP address of peer\n") +{ + return bgp_route_match_add (vty, vty->index, "peer", argv[0]); +} + +DEFUN (match_peer_local, + match_peer_local_cmd, + "match peer local", + MATCH_STR + "Match peer address\n" + "Static or Redistributed routes\n") +{ + return bgp_route_match_add (vty, vty->index, "peer", NULL); +} + +DEFUN (no_match_peer, + no_match_peer_cmd, + "no match peer", + NO_STR + MATCH_STR + "Match peer address\n") +{ + if (argc == 0) + return bgp_route_match_delete (vty, vty->index, "peer", NULL); + + return bgp_route_match_delete (vty, vty->index, "peer", argv[0]); +} + +ALIAS (no_match_peer, + no_match_peer_val_cmd, + "no match peer (A.B.C.D|X:X::X:X)", + NO_STR + MATCH_STR + "Match peer address\n" + "IPv6 address of peer\n" + "IP address of peer\n") + +ALIAS (no_match_peer, + no_match_peer_local_cmd, + "no match peer local", + NO_STR + MATCH_STR + "Match peer address\n" + "Static or Redistributed routes\n") + DEFUN (match_ip_address, match_ip_address_cmd, "match ip address (<1-199>|<1300-2699>|WORD)", @@ -3239,6 +3388,7 @@ bgp_route_map_init () route_map_add_hook (bgp_route_map_update); route_map_delete_hook (bgp_route_map_update); + route_map_install_match (&route_match_peer_cmd); route_map_install_match (&route_match_ip_address_cmd); route_map_install_match (&route_match_ip_next_hop_cmd); route_map_install_match (&route_match_ip_address_prefix_list_cmd); @@ -3264,6 +3414,11 @@ bgp_route_map_init () route_map_install_set (&route_set_ecommunity_rt_cmd); route_map_install_set (&route_set_ecommunity_soo_cmd); + install_element (RMAP_NODE, &match_peer_cmd); + install_element (RMAP_NODE, &match_peer_local_cmd); + install_element (RMAP_NODE, &no_match_peer_cmd); + install_element (RMAP_NODE, &no_match_peer_val_cmd); + install_element (RMAP_NODE, &no_match_peer_local_cmd); install_element (RMAP_NODE, &match_ip_address_cmd); install_element (RMAP_NODE, &no_match_ip_address_cmd); install_element (RMAP_NODE, &no_match_ip_address_val_cmd); |