2003-08-10 amir <amir@datacore.ch>

	* Add missing 'i' to getopts, short form of --pid_file.
	  see http://bugzilla.quagga.net/show_bug.cgi?id=25

9 files changed, 164 insertions, 185 deletions

diff --git a/ospfd/ospf_abr.c b/ospfd/ospf_abr.c
index 92282514..46fb7aaf 100644
--- a/ospfd/ospf_abr.c
+++ b/ospfd/ospf_abr.c
@@ -779,15 +779,15 @@ ospf_abr_nexthops_belong_to_area (struct ospf_route *or,
 				  struct ospf_area *area)
 {
   listnode node;
+  struct ospf_path *path;
 
-  for (node = listhead (or->path); node; nextnode (node))
+  LIST_LOOP (or->paths, path, node)
     {
-      struct ospf_path *path = node->data;
       struct ospf_interface *oi = path->oi;
 
       if (oi != NULL)
-	if (oi->area == area)
-	  return 1;
+        if (oi->area == area)
+          return 1;
     }
 
   return 0;
diff --git a/ospfd/ospf_ase.c b/ospfd/ospf_ase.c
index 5605933b..db43e102 100644
--- a/ospfd/ospf_ase.c
+++ b/ospfd/ospf_ase.c
@@ -141,7 +141,7 @@ ospf_ase_complete_direct_routes (struct ospf_route *ro, struct in_addr nexthop)
   listnode node;
   struct ospf_path *op;
 
-  for (node = listhead (ro->path); node; nextnode (node))
+  for (node = listhead (ro->paths); node; nextnode (node))
     if ((op = getdata (node)) != NULL)
       if (op->nexthop.s_addr == 0)
 	op->nexthop.s_addr = nexthop.s_addr;
@@ -268,7 +268,6 @@ ospf_ase_calculate_new_route (struct ospf_lsa *lsa,
     }
 
   new->type = OSPF_DESTINATION_NETWORK;
-  new->path = list_new ();
   new->u.ext.origin = lsa;
   new->u.ext.tag = ntohl (al->e[0].route_tag);
   new->u.ext.asbr = asbr_route;
@@ -511,7 +510,7 @@ ospf_ase_calculate_route (struct ospf *ospf, struct ospf_lsa * lsa)
       else
 	{
 	  zlog_info ("Route[External]: Routes are equal");
-	  ospf_route_copy_nexthops (or, asbr_route->path);
+	  ospf_route_copy_nexthops (or, asbr_route->paths);
 	  if (al->e[0].fwd_addr.s_addr)
 	    ospf_ase_complete_direct_routes (or, al->e[0].fwd_addr);
 	}
@@ -565,11 +564,11 @@ ospf_ase_route_match_same (struct route_table *rt, struct prefix *prefix,
        return 0;
      }
    
-   if (or->path->count != newor->path->count)
+   if (or->paths->count != newor->paths->count)
      return 0;
        
    /* Check each path. */
-   for (n1 = listhead (or->path), n2 = listhead (newor->path);
+   for (n1 = listhead (or->paths), n2 = listhead (newor->paths);
 	n1 && n2; nextnode (n1), nextnode (n2))
      { 
        op = getdata (n1);
diff --git a/ospfd/ospf_ia.c b/ospfd/ospf_ia.c
index 32c8d86b..e4c14686 100644
--- a/ospfd/ospf_ia.c
+++ b/ospfd/ospf_ia.c
@@ -71,8 +71,9 @@ ospf_find_abr_route (struct route_table *rtrs,
 }
 
 void
-ospf_ia_network_route (struct route_table *rt, struct prefix_ipv4 *p,
-                       struct ospf_route *new_or, struct ospf_route *abr_or)
+ospf_ia_network_route (struct ospf *ospf, struct route_table *rt,
+		       struct prefix_ipv4 *p, struct ospf_route *new_or,
+		       struct ospf_route *abr_or)
 {
   struct route_node *rn1;
   struct ospf_route *or;
@@ -94,7 +95,7 @@ ospf_ia_network_route (struct route_table *rt, struct prefix_ipv4 *p,
 	    zlog_info ("ospf_ia_network_route(): "
 		       "Found a route to the same network");
 	  /* Check the existing route. */
-	  if ((res = ospf_route_cmp (new_or, or)) < 0)
+	  if ((res = ospf_route_cmp (ospf, new_or, or)) < 0)
 	    {
 	      /* New route is better, so replace old one. */
 	      ospf_route_subst (rn1, new_or, abr_or);
@@ -103,7 +104,7 @@ ospf_ia_network_route (struct route_table *rt, struct prefix_ipv4 *p,
 	    {
 	      /* New and old route are equal, so next hops can be added. */
 	      route_lock_node (rn1);
-	      ospf_route_copy_nexthops (or, abr_or->path);
+	      ospf_route_copy_nexthops (or, abr_or->paths);
 	      route_unlock_node (rn1);
 
 	      /* new route can be deleted, because existing route has been updated. */
@@ -127,18 +128,19 @@ ospf_ia_network_route (struct route_table *rt, struct prefix_ipv4 *p,
 }
 
 void
-ospf_ia_router_route (struct route_table *rt, struct prefix_ipv4 *p,
+ospf_ia_router_route (struct ospf *ospf, struct route_table *rtrs,
+		      struct prefix_ipv4 *p,
                       struct ospf_route *new_or, struct ospf_route *abr_or)
 {
-  struct route_node *rn;
   struct ospf_route *or = NULL;
+  struct route_node *rn;
   int ret;
 
   if (IS_DEBUG_OSPF_EVENT)
     zlog_info ("ospf_ia_router_route(): considering %s/%d", 
 	       inet_ntoa (p->prefix), p->prefixlen);
   /* Find a route to the same dest */
-  rn = route_node_get (rt,(struct prefix *) p);
+  rn = route_node_get (rtrs, (struct prefix *) p);
    
   if (rn->info == NULL)
     /* This is a new route */
@@ -146,11 +148,11 @@ ospf_ia_router_route (struct route_table *rt, struct prefix_ipv4 *p,
   else
     {
       struct ospf_area *or_area;
-      or_area = ospf_area_lookup_by_area_id (new_or->u.std.area_id);
+      or_area = ospf_area_lookup_by_area_id (ospf, new_or->u.std.area_id);
       assert (or_area);
       /* This is an additional route */
       route_unlock_node (rn);
-      or = ospf_find_asbr_route_through_area (rt, p, or_area);
+      or = ospf_find_asbr_route_through_area (rtrs, p, or_area);
     }
 
   if (or)
@@ -159,7 +161,7 @@ ospf_ia_router_route (struct route_table *rt, struct prefix_ipv4 *p,
 	zlog_info ("ospf_ia_router_route(): "
 		   "a route to the same ABR through the same area exists");
       /* New route is better */
-      if ((ret = ospf_route_cmp (new_or, or)) < 0)
+      if ((ret = ospf_route_cmp (ospf, new_or, or)) < 0)
 	{
 	  listnode_delete (rn->info, or);
 	  ospf_route_free (or);
@@ -171,7 +173,7 @@ ospf_ia_router_route (struct route_table *rt, struct prefix_ipv4 *p,
 	  if (IS_DEBUG_OSPF_EVENT)
 	    zlog_info ("ospf_ia_router_route(): merging the new route");
 
-	  ospf_route_copy_nexthops (or, abr_or->path);
+	  ospf_route_copy_nexthops (or, abr_or->paths);
 	  ospf_route_free (new_or);
 	  return;
 	}
@@ -185,7 +187,7 @@ ospf_ia_router_route (struct route_table *rt, struct prefix_ipv4 *p,
 	}
     }
 
-  ospf_route_copy_nexthops (new_or, abr_or->path);
+  ospf_route_copy_nexthops (new_or, abr_or->paths);
 
   if (IS_DEBUG_OSPF_EVENT)
     zlog_info ("ospf_ia_router_route(): adding the new route"); 
@@ -194,28 +196,21 @@ ospf_ia_router_route (struct route_table *rt, struct prefix_ipv4 *p,
 }
 
 
-struct ia_args
-{
-  struct route_table *rt;
-  struct route_table *rtrs;
-  struct ospf_area *area;
-};
-
 int
-process_summary_lsa (struct ospf_lsa *l, void *v, int i)
+process_summary_lsa (struct ospf_area *area, struct route_table *rt,
+		     struct route_table *rtrs, struct ospf_lsa *lsa)
 {
+  struct ospf *ospf = area->ospf;
   struct ospf_area_range *range;
   struct ospf_route *abr_or, *new_or;
   struct summary_lsa *sl;
   struct prefix_ipv4 p, abr;
   u_int32_t metric;
-  struct ia_args *args;
 
-  if (l == NULL)
+  if (lsa == NULL)
     return 0;
 
-  args = (struct ia_args *) v;
-  sl = (struct summary_lsa *) l->data;
+  sl = (struct summary_lsa *) lsa->data;
 
   if (IS_DEBUG_OSPF_EVENT)
     zlog_info ("process_summary_lsa(): LS ID: %s", inet_ntoa (sl->header.id));
@@ -225,10 +220,10 @@ process_summary_lsa (struct ospf_lsa *l, void *v, int i)
   if (metric == OSPF_LS_INFINITY)
     return 0;
 
-  if (IS_LSA_MAXAGE (l))
+  if (IS_LSA_MAXAGE (lsa))
     return 0;
 
-  if (ospf_lsa_is_self_originated (l))
+  if (ospf_lsa_is_self_originated (area->ospf, lsa))
     return 0;
 
   p.family = AF_INET;
@@ -242,12 +237,12 @@ process_summary_lsa (struct ospf_lsa *l, void *v, int i)
   apply_mask_ipv4 (&p);
 
   if (sl->header.type == OSPF_SUMMARY_LSA &&
-      (range = ospf_area_range_match_any (ospf_top, &p)) &&
+      (range = ospf_area_range_match_any (ospf, &p)) &&
       ospf_area_range_active (range))
     return 0;
 
-  if (ospf_top->abr_type != OSPF_ABR_STAND &&
-      args->area->external_routing != OSPF_AREA_DEFAULT &&
+  if (ospf->abr_type != OSPF_ABR_STAND &&
+      area->external_routing != OSPF_AREA_DEFAULT &&
       p.prefix.s_addr == OSPF_DEFAULT_DESTINATION &&
       p.prefixlen == 0)
     return 0; /* Ignore summary default from a stub area */
@@ -257,7 +252,7 @@ process_summary_lsa (struct ospf_lsa *l, void *v, int i)
   abr.prefixlen = IPV4_MAX_BITLEN;
   apply_mask_ipv4 (&abr);
 
-  abr_or = ospf_find_abr_route (args->rtrs, &abr, args->area);
+  abr_or = ospf_find_abr_route (rtrs, &abr, area);
 
   if (abr_or == NULL)
     return 0;
@@ -269,32 +264,35 @@ process_summary_lsa (struct ospf_lsa *l, void *v, int i)
   new_or->u.std.options = sl->header.options;
   new_or->u.std.origin = (struct lsa_header *) sl;
   new_or->cost = abr_or->cost + metric;
-  new_or->u.std.area_id = args->area->area_id;
+  new_or->u.std.area_id = area->area_id;
 #ifdef HAVE_NSSA
-  new_or->u.std.external_routing = args->area->external_routing;
+  new_or->u.std.external_routing = area->external_routing;
 #endif /* HAVE_NSSA */
   new_or->path_type = OSPF_PATH_INTER_AREA;
 
   if (sl->header.type == OSPF_SUMMARY_LSA)
-    ospf_ia_network_route (args->rt, &p, new_or, abr_or);
+    ospf_ia_network_route (ospf, rt, &p, new_or, abr_or);
   else 
     {
       new_or->type = OSPF_DESTINATION_ROUTER;
       new_or->u.std.flags = ROUTER_LSA_EXTERNAL;
-      ospf_ia_router_route (args->rtrs, &p, new_or, abr_or);
+      ospf_ia_router_route (ospf, rtrs, &p, new_or, abr_or);
     }
 
   return 0;
 }
 
 void
-ospf_examine_summaries (struct ospf_area * area,
+ospf_examine_summaries (struct ospf_area *area,
 			struct route_table *lsdb_rt,
                         struct route_table *rt,
                         struct route_table *rtrs)
 {
-  struct ia_args args = {rt, rtrs, area};
-  foreach_lsa (lsdb_rt, &args, 0, process_summary_lsa);
+  struct ospf_lsa *lsa;
+  struct route_node *rn;
+
+  LSDB_LOOP (lsdb_rt, rn, lsa)
+    process_summary_lsa (area, rt, rtrs, lsa);
 }
 
 int
@@ -305,7 +303,8 @@ ospf_area_is_transit (struct ospf_area *area)
 }
 
 void
-ospf_update_network_route (struct route_table *rt, 
+ospf_update_network_route (struct ospf *ospf,
+			   struct route_table *rt, 
                            struct route_table *rtrs,
                            struct summary_lsa *lsa,
                            struct prefix_ipv4 *p,
@@ -336,7 +335,7 @@ ospf_update_network_route (struct route_table *rt,
 
   if (! rn)
     {
-      if (ospf_top->abr_type != OSPF_ABR_SHORTCUT)
+      if (ospf->abr_type != OSPF_ABR_SHORTCUT)
         return; /* Standard ABR can update only already installed
                    backbone paths                                       */
       if (IS_DEBUG_OSPF_EVENT)
@@ -375,7 +374,7 @@ ospf_update_network_route (struct route_table *rt,
       return;
     }
 
-  if (ospf_top->abr_type == OSPF_ABR_SHORTCUT)
+  if (ospf->abr_type == OSPF_ABR_SHORTCUT)
     {
       if (or->path_type == OSPF_PATH_INTRA_AREA &&
 	  !OSPF_IS_AREA_ID_BACKBONE (or->u.std.area_id))
@@ -409,7 +408,7 @@ ospf_update_network_route (struct route_table *rt,
       if (IS_DEBUG_OSPF_EVENT)
 	zlog_info ("ospf_update_network_route(): "
 		   "new route is same distance, adding nexthops");
-      ospf_route_copy_nexthops (or, abr_or->path);
+      ospf_route_copy_nexthops (or, abr_or->paths);
     }
 
   if (or->cost > cost)
@@ -417,10 +416,10 @@ ospf_update_network_route (struct route_table *rt,
       if (IS_DEBUG_OSPF_EVENT)
 	zlog_info ("ospf_update_network_route(): "
 		   "new route is better, overriding nexthops");
-      ospf_route_subst_nexthops (or, abr_or->path);
+      ospf_route_subst_nexthops (or, abr_or->paths);
       or->cost = cost;
 
-      if ((ospf_top->abr_type == OSPF_ABR_SHORTCUT) &&
+      if ((ospf->abr_type == OSPF_ABR_SHORTCUT) &&
 	  !OSPF_IS_AREA_ID_BACKBONE (or->u.std.area_id))
 	{
 	  or->path_type = OSPF_PATH_INTER_AREA;
@@ -437,7 +436,8 @@ ospf_update_network_route (struct route_table *rt,
 }
 
 void
-ospf_update_router_route (struct route_table *rtrs, 
+ospf_update_router_route (struct ospf *ospf,
+			  struct route_table *rtrs, 
                           struct summary_lsa *lsa,
                           struct prefix_ipv4 *p,
                           struct ospf_area *area)
@@ -465,17 +465,17 @@ ospf_update_router_route (struct route_table *rtrs,
   /* First try to find a backbone path,
      because standard ABR can update only BB-associated paths */
 
-  if ((ospf_top->backbone == NULL) &&
-      (ospf_top->abr_type != OSPF_ABR_SHORTCUT))
+  if ((ospf->backbone == NULL) &&
+      (ospf->abr_type != OSPF_ABR_SHORTCUT))
 
      /* no BB area, not Shortcut ABR, exiting */
      return;
  
-  or = ospf_find_asbr_route_through_area (rtrs, p, ospf_top->backbone);
+  or = ospf_find_asbr_route_through_area (rtrs, p, ospf->backbone);
 
   if (or == NULL)
     {
-      if (ospf_top->abr_type != OSPF_ABR_SHORTCUT)
+      if (ospf->abr_type != OSPF_ABR_SHORTCUT)
 
          /* route to ASBR through the BB not found
             the router is not Shortcut ABR, exiting */
@@ -500,7 +500,7 @@ ospf_update_router_route (struct route_table *rtrs,
 #endif /* HAVE_NSSA */
 	  new_or->path_type = OSPF_PATH_INTER_AREA;
 	  new_or->u.std.flags = ROUTER_LSA_EXTERNAL;
-	  ospf_ia_router_route (rtrs, p, new_or, abr_or);
+	  ospf_ia_router_route (ospf, rtrs, p, new_or, abr_or);
 
           return;
         }
@@ -523,11 +523,11 @@ ospf_update_router_route (struct route_table *rtrs,
     return;
 
   else if (or->cost == cost)
-    ospf_route_copy_nexthops (or, abr_or->path);
+    ospf_route_copy_nexthops (or, abr_or->paths);
 
   else if (or->cost > cost)
     {
-      ospf_route_subst_nexthops (or, abr_or->path);
+      ospf_route_subst_nexthops (or, abr_or->paths);
       or->cost = cost;
 
       /* Even if the ABR runs in Shortcut mode, we can't change
@@ -537,22 +537,22 @@ ospf_update_router_route (struct route_table *rtrs,
 }
 
 int
-process_transit_summary_lsa (struct ospf_lsa *l, void *v, int i)
+process_transit_summary_lsa (struct ospf_area *area, struct route_table *rt,
+			     struct route_table *rtrs, struct ospf_lsa *lsa)
 {
+  struct ospf *ospf = area->ospf;
   struct summary_lsa *sl;
   struct prefix_ipv4 p;
   u_int32_t metric;
-  struct ia_args *args;
 
-  if (l == NULL)
+  if (lsa == NULL)
     return 0;
 
-  args = (struct ia_args *) v;
-  sl = (struct summary_lsa *) l->data;
+  sl = (struct summary_lsa *) lsa->data;
 
   if (IS_DEBUG_OSPF_EVENT)
     zlog_info ("process_transit_summaries(): LS ID: %s",
-	       inet_ntoa (l->data->id));
+	       inet_ntoa (lsa->data->id));
   metric = GET_METRIC (sl->metric);
    
   if (metric == OSPF_LS_INFINITY)
@@ -562,14 +562,14 @@ process_transit_summary_lsa (struct ospf_lsa *l, void *v, int i)
       return 0;
     }
 
-  if (IS_LSA_MAXAGE (l))
+  if (IS_LSA_MAXAGE (lsa))
     {
       if (IS_DEBUG_OSPF_EVENT)
 	zlog_info ("process_transit_summaries(): This LSA is too old");
       return 0;
     }
 
-  if (ospf_lsa_is_self_originated (l))
+  if (ospf_lsa_is_self_originated (area->ospf, lsa))
     { 
       if (IS_DEBUG_OSPF_EVENT)
 	zlog_info ("process_transit_summaries(): This LSA is mine, skip");
@@ -587,28 +587,29 @@ process_transit_summary_lsa (struct ospf_lsa *l, void *v, int i)
   apply_mask_ipv4 (&p);
 
   if (sl->header.type == OSPF_SUMMARY_LSA)
-    ospf_update_network_route (args->rt, args->rtrs, sl, &p, args->area);
+    ospf_update_network_route (ospf, rt, rtrs, sl, &p, area);
   else
-    ospf_update_router_route (args->rtrs, sl, &p, args->area);
+    ospf_update_router_route (ospf, rtrs, sl, &p, area);
  
   return 0;
 }
 
 void
 ospf_examine_transit_summaries (struct ospf_area *area,
-                                /* struct ospf_lsdb *lsdb, */
 				struct route_table *lsdb_rt,
                                 struct route_table *rt,
                                 struct route_table *rtrs)
 {
-  struct ia_args args = {rt, rtrs, area};
+  struct ospf_lsa *lsa;
+  struct route_node *rn;
 
-  /* ospf_lsdb_iterator (lsdb, &args, 0, process_transit_summary_lsa); */
-  foreach_lsa (lsdb_rt, &args, 0, process_transit_summary_lsa);
+  LSDB_LOOP (lsdb_rt, rn, lsa)
+    process_transit_summary_lsa (area, rt, rtrs, lsa);
 }
 
 void
-ospf_ia_routing (struct route_table *rt,
+ospf_ia_routing (struct ospf *ospf,
+		 struct route_table *rt,
                  struct route_table *rtrs)
 {
   struct ospf_area * area;
@@ -616,18 +617,18 @@ ospf_ia_routing (struct route_table *rt,
   if (IS_DEBUG_OSPF_EVENT)
     zlog_info ("ospf_ia_routing():start");
 
-  if (OSPF_IS_ABR)
+  if (IS_OSPF_ABR (ospf))
     {
       listnode node; 
       struct ospf_area *area;
 
-      switch (ospf_top->abr_type)
+      switch (ospf->abr_type)
         {
         case OSPF_ABR_STAND:
 	  if (IS_DEBUG_OSPF_EVENT)
 	    zlog_info ("ospf_ia_routing():Standard ABR");
 
-          if ((area = ospf_top->backbone))
+          if ((area = ospf->backbone))
             {
               listnode node;
 
@@ -639,9 +640,9 @@ ospf_ia_routing (struct route_table *rt,
 
               OSPF_EXAMINE_SUMMARIES_ALL (area, rt, rtrs);
 
-	      for (node = listhead (ospf_top->areas); node; nextnode (node))
+	      for (node = listhead (ospf->areas); node; nextnode (node))
                 if ((area = getdata (node)) != NULL)
-                  if (area != ospf_top->backbone)
+                  if (area != ospf->backbone)
 		    if (ospf_area_is_transit (area))
 		      OSPF_EXAMINE_TRANSIT_SUMMARIES_ALL (area, rt, rtrs);
             }
@@ -653,10 +654,10 @@ ospf_ia_routing (struct route_table *rt,
         case OSPF_ABR_CISCO:
 	  if (IS_DEBUG_OSPF_EVENT)
 	    zlog_info ("ospf_ia_routing():Alternative Cisco/IBM ABR");
-          area = ospf_top->backbone; /* Find the BB */
+          area = ospf->backbone; /* Find the BB */
 
           /* If we have an active BB connection */
-          if (area && ospf_act_bb_connection ())
+          if (area && ospf_act_bb_connection (ospf))
             {
 	      if (IS_DEBUG_OSPF_EVENT)
 		{
@@ -666,9 +667,9 @@ ospf_ia_routing (struct route_table *rt,
 
               OSPF_EXAMINE_SUMMARIES_ALL (area, rt, rtrs);
 
-	      for (node = listhead (ospf_top->areas); node; nextnode (node))
+	      for (node = listhead (ospf->areas); node; nextnode (node))
                 if ((area = getdata (node)) != NULL)
-                  if (area != ospf_top->backbone)
+                  if (area != ospf->backbone)
 		    if (ospf_area_is_transit (area))
 		      OSPF_EXAMINE_TRANSIT_SUMMARIES_ALL (area, rt, rtrs);
             }
@@ -677,7 +678,7 @@ ospf_ia_routing (struct route_table *rt,
 	      if (IS_DEBUG_OSPF_EVENT)
 		zlog_info ("ospf_ia_routing(): "
 			   "Active BB connection not found");
-	      for (node = listhead (ospf_top->areas); node; nextnode (node))
+	      for (node = listhead (ospf->areas); node; nextnode (node))
                 if ((area = getdata (node)) != NULL)
                   OSPF_EXAMINE_SUMMARIES_ALL (area, rt, rtrs);
             }
@@ -685,10 +686,10 @@ ospf_ia_routing (struct route_table *rt,
         case OSPF_ABR_SHORTCUT:
 	  if (IS_DEBUG_OSPF_EVENT)
 	    zlog_info ("ospf_ia_routing():Alternative Shortcut");
-          area = ospf_top->backbone; /* Find the BB */
+          area = ospf->backbone; /* Find the BB */
 
           /* If we have an active BB connection */
-          if (area && ospf_act_bb_connection ())
+          if (area && ospf_act_bb_connection (ospf))
             {
 	      if (IS_DEBUG_OSPF_EVENT)
 		{
@@ -698,12 +699,12 @@ ospf_ia_routing (struct route_table *rt,
               OSPF_EXAMINE_SUMMARIES_ALL (area, rt, rtrs);
             }
 
-	  for (node = listhead (ospf_top->areas); node; nextnode (node))
+	  for (node = listhead (ospf->areas); node; nextnode (node))
             if ((area = getdata (node)) != NULL)
-              if (area != ospf_top->backbone)
+              if (area != ospf->backbone)
 		if (ospf_area_is_transit (area) ||
 		    ((area->shortcut_configured != OSPF_SHORTCUT_DISABLE) &&
-		     ((ospf_top->backbone == NULL) ||
+		     ((ospf->backbone == NULL) ||
                       ((area->shortcut_configured == OSPF_SHORTCUT_ENABLE) &&
 		       area->shortcut_capability))))
 		  OSPF_EXAMINE_TRANSIT_SUMMARIES_ALL (area, rt, rtrs);
@@ -719,7 +720,7 @@ ospf_ia_routing (struct route_table *rt,
       if (IS_DEBUG_OSPF_EVENT)
 	zlog_info ("ospf_ia_routing():not ABR, considering all areas");
 
-      for (node = listhead (ospf_top->areas); node; nextnode (node))
+      for (node = listhead (ospf->areas); node; nextnode (node))
         if ((area = getdata (node)) != NULL)
           OSPF_EXAMINE_SUMMARIES_ALL (area, rt, rtrs);
     }
diff --git a/ospfd/ospf_main.c b/ospfd/ospf_main.c
index 236d8c28..211aa78a 100644
--- a/ospfd/ospf_main.c
+++ b/ospfd/ospf_main.c
@@ -232,7 +232,7 @@ main (int argc, char **argv)
     {
       int opt;
 
-      opt = getopt_long (argc, argv, "dlf:hA:P:u:v", longopts, 0);
+      opt = getopt_long (argc, argv, "dlf:i:hA:P:u:v", longopts, 0);
     
       if (opt == EOF)
 	break;
diff --git a/ospfd/ospf_route.c b/ospfd/ospf_route.c
index 0de415ee..e1e1e390 100644
--- a/ospfd/ospf_route.c
+++ b/ospfd/ospf_route.c
@@ -49,6 +49,8 @@ ospf_route_new ()
 
   new->ctime = time (NULL);
   new->mtime = new->ctime;
+  new->paths = list_new ();
+  new->paths->del = (void (*) (void *))ospf_path_free;
 
   return new;
 }
@@ -56,15 +58,8 @@ ospf_route_new ()
 void
 ospf_route_free (struct ospf_route *or)
 {
-  listnode node;
-
-  if (or->path)
-    {
-      for (node = listhead (or->path); node; nextnode (node))
-	ospf_path_free (node->data);
-
-      list_delete (or->path);
-    }
+  if (or->paths)
+      list_delete (or->paths);
 
   XFREE (MTYPE_OSPF_ROUTE, or);
 }
@@ -158,11 +153,11 @@ ospf_route_match_same (struct route_table *rt, struct prefix_ipv4 *prefix,
      {
        if (or->type == OSPF_DESTINATION_NETWORK)
 	 {
-	   if (or->path->count != newor->path->count)
+	   if (or->paths->count != newor->paths->count)
 	     return 0;
 
 	   /* Check each path. */
-	   for (n1 = listhead (or->path), n2 = listhead (newor->path);
+	   for (n1 = listhead (or->paths), n2 = listhead (newor->paths);
 		n1 && n2; nextnode (n1), nextnode (n2))
 	     { 
 	       op = getdata (n1);
@@ -310,15 +305,14 @@ ospf_intra_route_add (struct route_table *rt, struct vertex *v,
   if (v->type == OSPF_VERTEX_NETWORK)
     {
       or->type = OSPF_DESTINATION_NETWORK;
-      or->path = list_new ();
 
-      for (nnode = listhead (v->nexthop); nnode; nextnode (nnode))
-	{
-	  nexthop = getdata (nnode);
-	  path = ospf_path_new ();
-	  path->nexthop = nexthop->router;
-	  listnode_add (or->path, path);
-	}
+      LIST_LOOP (v->nexthop, nexthop, nnode)
+        {
+          nexthop = getdata (nnode);
+          path = ospf_path_new ();
+          path->nexthop = nexthop->router;
+          listnode_add (or->paths, path);
+        }
     }
   else
     or->type = OSPF_DESTINATION_ROUTER;
@@ -592,8 +586,8 @@ ospf_intra_add_stub (struct route_table *rt, struct router_lsa_link *link,
 
 	  cur_or->cost = cost;
 
-	  list_delete (cur_or->path);
-	  cur_or->path = NULL;
+	  list_delete (cur_or->paths);
+	  cur_or->paths = NULL;
 
 	  ospf_route_copy_nexthops_from_vertex (cur_or, v);
 
@@ -616,7 +610,6 @@ ospf_intra_add_stub (struct route_table *rt, struct router_lsa_link *link,
   or->cost = cost;
   or->type = OSPF_DESTINATION_NETWORK;
   or->u.std.origin = (struct lsa_header *) lsa;
-  or->path = list_new ();
 
   /* Nexthop is depend on connection type. */
   if (v != area->spf)
@@ -639,7 +632,7 @@ ospf_intra_add_stub (struct route_table *rt, struct router_lsa_link *link,
 	  path = ospf_path_new ();
 	  path->nexthop.s_addr = 0;
 	  path->oi = oi;
-	  listnode_add (or->path, path);
+	  listnode_add (or->paths, path);
 	}
       else
 	{
@@ -691,7 +684,7 @@ ospf_route_table_dump (struct route_table *rt)
 				  BUFSIZ),
 		       ospf_path_type_str[or->path_type],
 		       or->cost);
-	    for (pnode = listhead (or->path); pnode; nextnode (pnode))
+	    for (pnode = listhead (or->paths); pnode; nextnode (pnode))
 	      {
 		path = getdata (pnode);
 		zlog_info ("  -> %s", inet_ntoa (path->nexthop));
@@ -821,8 +814,7 @@ ospf_route_copy_nexthops_from_vertex (struct ospf_route *to,
   struct ospf_path *path;
   struct vertex_nexthop *nexthop;
 
-  if (to->path == NULL)
-    to->path = list_new ();
+  assert (to->paths);
 
   for (nnode = listhead (v->nexthop); nnode; nextnode (nnode))
     {
@@ -830,12 +822,12 @@ ospf_route_copy_nexthops_from_vertex (struct ospf_route *to,
 
       if (nexthop->oi != NULL) 
 	{
-	  if (! ospf_path_exist (to->path, nexthop->router, nexthop->oi))
+	  if (! ospf_path_exist (to->paths, nexthop->router, nexthop->oi))
 	    {
 	      path = ospf_path_new ();
 	      path->nexthop = nexthop->router;
 	      path->oi = nexthop->oi;
-	      listnode_add (to->path, path);
+	      listnode_add (to->paths, path);
 	    }
 	}
     }
@@ -863,29 +855,19 @@ ospf_route_copy_nexthops (struct ospf_route *to, list from)
 {
   listnode node;
 
-  if (to->path == NULL)
-    to->path = list_new ();
+  assert (to->paths);
 
   for (node = listhead (from); node; nextnode (node))
     /* The same routes are just discarded. */
-    if (!ospf_path_lookup (to->path, node->data))
-      listnode_add (to->path, ospf_path_dup (node->data));
+    if (!ospf_path_lookup (to->paths, node->data))
+      listnode_add (to->paths, ospf_path_dup (node->data));
 }
 
 void
 ospf_route_subst_nexthops (struct ospf_route *to, list from)
 {
-  listnode node;
-  struct ospf_path *op;
-
-  for (node = listhead (to->path); node; nextnode (node))
-    if ((op = getdata (node)) != NULL)
-      {
-	ospf_path_free (op);
-	node->data = NULL;
-      }
 
-  list_delete_all_node (to->path);
+  list_delete_all_node (to->paths);
   ospf_route_copy_nexthops (to, from);
 }
 
@@ -896,7 +878,7 @@ ospf_route_subst (struct route_node *rn, struct ospf_route *new_or,
   route_lock_node (rn);
   ospf_route_free (rn->info);
 
-  ospf_route_copy_nexthops (new_or, over->path);
+  ospf_route_copy_nexthops (new_or, over->paths);
   rn->info = new_or;
   route_unlock_node (rn);
 }
@@ -909,7 +891,7 @@ ospf_route_add (struct route_table *rt, struct prefix_ipv4 *p,
 
   rn = route_node_get (rt, (struct prefix *) p);
 
-  ospf_route_copy_nexthops (new_or, over->path);
+  ospf_route_copy_nexthops (new_or, over->paths);
 
   if (rn->info)
     {
@@ -937,7 +919,7 @@ ospf_prune_unreachable_networks (struct route_table *rt)
       if (rn->info != NULL)
 	{
 	  or = rn->info;
-	  if (listcount (or->path) == 0)
+	  if (listcount (or->paths) == 0)
 	    {
 	      if (IS_DEBUG_OSPF_EVENT)
 		zlog_info ("Pruning route to %s/%d",
@@ -974,7 +956,7 @@ ospf_prune_unreachable_routers (struct route_table *rtrs)
 
 	  or = getdata (node);
 
-	  if (listcount (or->path) == 0)
+	  if (listcount (or->paths) == 0)
 	    {
 	      if (IS_DEBUG_OSPF_EVENT)
 		{
diff --git a/ospfd/ospf_route.h b/ospfd/ospf_route.h
index 81f59c48..8d05be22 100644
--- a/ospfd/ospf_route.h
+++ b/ospfd/ospf_route.h
@@ -110,7 +110,7 @@ struct ospf_route
   u_char path_type;
 
   /* List of Paths. */
-  list path;
+  list paths;
 
   /* Link State Cost. */
   u_int32_t cost;		/* i.e. metric. */
@@ -124,14 +124,14 @@ struct ospf_route
 };
 
 struct ospf_path *ospf_path_new ();
-void ospf_path_free (struct ospf_path *op);
+void ospf_path_free (struct ospf_path *);
 struct ospf_path *ospf_path_lookup (list, struct ospf_path *);
 struct ospf_route *ospf_route_new ();
-void ospf_route_free (struct ospf_route *or);
-void ospf_route_delete (struct route_table *rt);
-void ospf_route_table_free (struct route_table *rt);
+void ospf_route_free (struct ospf_route *);
+void ospf_route_delete (struct route_table *);
+void ospf_route_table_free (struct route_table *);
 
-void ospf_route_install (struct route_table *);
+void ospf_route_install (struct ospf *, struct route_table *);
 void ospf_route_table_dump (struct route_table *);
 
 void ospf_intra_add_router (struct route_table *, struct vertex *,
@@ -143,7 +143,7 @@ void ospf_intra_add_transit (struct route_table *, struct vertex *,
 void ospf_intra_add_stub (struct route_table *, struct router_lsa_link *,
  		          struct vertex *, struct ospf_area *);
 
-int ospf_route_cmp (struct ospf_route *, struct ospf_route *);
+int ospf_route_cmp (struct ospf *, struct ospf_route *, struct ospf_route *);
 void ospf_route_copy_nexthops (struct ospf_route *, list);
 void ospf_route_copy_nexthops_from_vertex (struct ospf_route *,
 					   struct vertex * );
diff --git a/ospfd/ospf_spf.c b/ospfd/ospf_spf.c
index 9e6690ae..8399e18e 100644
--- a/ospfd/ospf_spf.c
+++ b/ospfd/ospf_spf.c
@@ -898,7 +898,7 @@ ospf_rtrs_print (struct route_table *rtrs)
               break;
             }
 
-          for (pnode = listhead (or->path); pnode; nextnode (pnode))
+          for (pnode = listhead (or->paths); pnode; nextnode (pnode))
             {
               path = getdata (pnode);
               if (path->nexthop.s_addr == 0)
diff --git a/ospfd/ospf_vty.c b/ospfd/ospf_vty.c
index c22aa453..5e2c3a2e 100644
--- a/ospfd/ospf_vty.c
+++ b/ospfd/ospf_vty.c
@@ -6513,20 +6513,19 @@ show_ip_ospf_route_network (struct vty *vty, struct route_table *rt)
 	  }
 
         if (or->type == OSPF_DESTINATION_NETWORK)
- 	  for (pnode = listhead (or->path); pnode; nextnode (pnode))
-	    {
-	      path = getdata (pnode);
-	      if (path->oi != NULL)
-		{
-		  if (path->nexthop.s_addr == 0)
-		    vty_out (vty, "%24s   directly attached to %s%s",
-			     "", path->oi->ifp->name, VTY_NEWLINE);
-		  else 
-		    vty_out (vty, "%24s   via %s, %s%s", "",
-			     inet_ntoa (path->nexthop), path->oi->ifp->name,
-			     VTY_NEWLINE);
-		}
-	    }
+          LIST_LOOP (or->paths, path, pnode)
+            {
+              if (path->oi != NULL)
+                {
+                  if (path->nexthop.s_addr == 0)
+                    vty_out (vty, "%24s   directly attached to %s%s",
+                             "", path->oi->ifp->name, VTY_NEWLINE);
+                  else
+                    vty_out (vty, "%24s   via %s, %s%s", "",
+                             inet_ntoa (path->nexthop), path->oi->ifp->name,
+                             VTY_NEWLINE);
+                }
+            }
       }
   vty_out (vty, "%s", VTY_NEWLINE);
 }
@@ -6563,18 +6562,17 @@ show_ip_ospf_route_router (struct vty *vty, struct route_table *rtrs)
 		       (or->u.std.flags & ROUTER_LSA_BORDER ? ", ABR" : ""),
 		       (or->u.std.flags & ROUTER_LSA_EXTERNAL ? ", ASBR" : ""),
 		       VTY_NEWLINE);
-
-	      for (pn = listhead (or->path); pn; nextnode (pn))
-		{
-		  path = getdata (pn);
-		  if (path->nexthop.s_addr == 0)
-		    vty_out (vty, "%24s   directly attached to %s%s",
-			     "", path->oi->ifp->name, VTY_NEWLINE);
-		  else 
-		    vty_out (vty, "%24s   via %s, %s%s", "",
-			     inet_ntoa (path->nexthop), path->oi->ifp->name,
-			     VTY_NEWLINE);
-		}
+		    
+		    LIST_LOOP (or->paths, path, pn)
+		      {
+		        if (path->nexthop.s_addr == 0)
+		          vty_out (vty, "%24s   directly attached to %s%s",
+		                   "", path->oi->ifp->name, VTY_NEWLINE);
+		        else
+		          vty_out (vty, "%24s   via %s, %s%s", "",
+		                   inet_ntoa (path->nexthop), path->oi->ifp->name,
+		                              VTY_NEWLINE);
+		      }
 	    }
       }
   vty_out (vty, "%s", VTY_NEWLINE);
@@ -6609,18 +6607,17 @@ show_ip_ospf_route_external (struct vty *vty, struct route_table *rt)
 	    break;
 	  }
 
-        for (pnode = listhead (er->path); pnode; nextnode (pnode))
+        LIST_LOOP (er->paths, path, pnode)
           {
-            path = getdata (pnode);
             if (path->oi != NULL)
               {
                 if (path->nexthop.s_addr == 0)
-	          vty_out (vty, "%24s   directly attached to %s%s",
-		           "", path->oi->ifp->name, VTY_NEWLINE);
-                else 
-	          vty_out (vty, "%24s   via %s, %s%s", "",
-			   inet_ntoa (path->nexthop), path->oi->ifp->name,
-     		           VTY_NEWLINE);
+                  vty_out (vty, "%24s   directly attached to %s%s",
+                           "", path->oi->ifp->name, VTY_NEWLINE);
+                else
+                  vty_out (vty, "%24s   via %s, %s%s", "",
+                           inet_ntoa (path->nexthop), path->oi->ifp->name,
+                           VTY_NEWLINE);
               }
            }
         }
@@ -7326,8 +7323,8 @@ ospf_config_write (struct vty *vty)
 
 	  if (OSPF_IF_PARAM_CONFIGURED (oi->params, passive_interface) &&
 	      oi->params->passive_interface == OSPF_IF_PASSIVE)
-	    vty_out (vty, " passive-interface %s %s%s",
-	             oi->ifp->name,
+      vty_out (vty, " passive-interface %s %s%s",
+               oi->ifp->name,
                inet_ntoa (oi->address->u.prefix4), VTY_NEWLINE);
         }
 
diff --git a/ospfd/ospf_zebra.c b/ospfd/ospf_zebra.c
index a17f893d..3594b17c 100644
--- a/ospfd/ospf_zebra.c
+++ b/ospfd/ospf_zebra.c
@@ -355,10 +355,10 @@ ospf_zebra_add (struct prefix_ipv4 *p, struct ospf_route *or)
       stream_write (s, (u_char *) & p->prefix, psize);
 
       /* Nexthop count. */
-      stream_putc (s, or->path->count);
+      stream_putc (s, or->paths->count);
 
       /* Nexthop, ifindex, distance and metric information. */
-      for (node = listhead (or->path); node; nextnode (node))
+      for (node = listhead (or->paths); node; nextnode (node))
         {
           path = getdata (node);
 
@@ -419,7 +419,7 @@ ospf_zebra_delete (struct prefix_ipv4 *p, struct ospf_route *or)
       api.nexthop_num = 0;
       SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP);
 
-      for (node = listhead (or->path); node; nextnode (node))
+      for (node = listhead (or->paths); node; nextnode (node))
         {
           path = getdata (node);