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
diff --git a/ospfd/ospf_spf.c b/ospfd/ospf_spf.c
index 23d45dd..15d27be 100644
--- a/ospfd/ospf_spf.c
+++ b/ospfd/ospf_spf.c
@@ -981,7 +981,21 @@
(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);
+ }
}
}