diff options
Diffstat (limited to 'ospfd/ospf_route.c')
| -rw-r--r-- | ospfd/ospf_route.c | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/ospfd/ospf_route.c b/ospfd/ospf_route.c index a5d6d18c..c3acba34 100644 --- a/ospfd/ospf_route.c +++ b/ospfd/ospf_route.c @@ -954,6 +954,10 @@ ospf_add_discard_route (struct route_table *rt, struct ospf_area *area, ospf_route_free (rn->info); } + if (IS_DEBUG_OSPF_EVENT) + zlog_debug ("ospf_add_discard_route(): " + "adding %s/%d", inet_ntoa (p->prefix), p->prefixlen); + new_or = ospf_route_new (); new_or->type = OSPF_DESTINATION_DISCARD; new_or->id.s_addr = 0; @@ -969,8 +973,52 @@ ospf_add_discard_route (struct route_table *rt, struct ospf_area *area, } void -ospf_delete_discard_route (struct prefix_ipv4 *p) +ospf_delete_discard_route (struct route_table *rt, struct prefix_ipv4 *p) { + struct route_node *rn; + struct ospf_route *or; + + if (IS_DEBUG_OSPF_EVENT) + zlog_debug ("ospf_delete_discard_route(): " + "deleting %s/%d", inet_ntoa (p->prefix), p->prefixlen); + + rn = route_node_lookup (rt, (struct prefix*)p); + + if (rn == NULL) + { + if (IS_DEBUG_OSPF_EVENT) + zlog_debug("ospf_delete_discard_route(): no route found"); + return; + } + + or = rn->info; + + if (or->path_type == OSPF_PATH_INTRA_AREA) + { + if (IS_DEBUG_OSPF_EVENT) + zlog_debug ("ospf_delete_discard_route(): " + "an intra-area route exists"); + return; + } + + if (or->type != OSPF_DESTINATION_DISCARD) + { + if (IS_DEBUG_OSPF_EVENT) + zlog_debug ("ospf_delete_discard_route(): " + "not a discard entry"); + return; + } + + /* free the route entry and the route node */ + ospf_route_free (rn->info); + + rn->info = NULL; + route_unlock_node (rn); + route_unlock_node (rn); + + /* remove the discard entry from the rib */ ospf_zebra_delete_discard(p); + + return; } |