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authorJoakim Tjernlund <Joakim.Tjernlund@transmode.se>2008-08-20 14:24:39 +0200
committerJoakim Tjernlund <Joakim.Tjernlund@transmode.se>2008-08-25 09:50:17 +0200
commit910e2704bee6bf78aee858db65f5393be618e683 (patch)
tree881c792fa2424d34c485e23b368a57c9c6a6daaa
parentb38309a4ee831a440ef78f8a27db584f2f8e8276 (diff)
Ignore host routes to self.
PtP links with /32 masks adds host routes to the remote host, see RFC 2328, 12.4.1.1, Option 1. Make sure that such routes are ignored
-rw-r--r--ospfd/ospf_spf.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/ospfd/ospf_spf.c b/ospfd/ospf_spf.c
index 23d45dd6..15d27be7 100644
--- a/ospfd/ospf_spf.c
+++ b/ospfd/ospf_spf.c
@@ -981,7 +981,21 @@ ospf_spf_process_stubs (struct ospf_area *area, struct vertex *v,
(l->m[0].tos_count * ROUTER_LSA_TOS_SIZE));
if (l->m[0].type == LSA_LINK_TYPE_STUB)
- ospf_intra_add_stub (rt, l, v, area);
+ {
+ /* PtP links with /32 masks adds host routes to the remote host,
+ see RFC 2328, 12.4.1.1, Option 1.
+ Make sure that such routes are ignored */
+ /* XXX: Change to breadth-first and avoid the lookup */
+ if (l->link_data.s_addr == 0xffffffff &&
+ ospf_if_lookup_by_local_addr (area->ospf, NULL, l->link_id))
+ {
+ if (IS_DEBUG_OSPF_EVENT)
+ zlog_debug ("ospf_spf_process_stubs(): ignoring host route "
+ "%s/32 to self.", inet_ntoa (l->link_id));
+ continue;
+ }
+ ospf_intra_add_stub (rt, l, v, area);
+ }
}
}