From 18a6dce6f83dd20caf1f36c8e840868ff0bf6dbd Mon Sep 17 00:00:00 2001
From: hasso <hasso>
Date: Sun, 3 Oct 2004 18:18:34 +0000
Subject: Common router id.

---
 ospfd/ChangeLog    |  7 +++++++
 ospfd/ospf_zebra.c | 37 +++++++++++++++++++++++--------------
 ospfd/ospfd.c      | 30 ++----------------------------
 3 files changed, 32 insertions(+), 42 deletions(-)

(limited to 'ospfd')

diff --git a/ospfd/ChangeLog b/ospfd/ChangeLog
index 6e1a8646..2043ad61 100644
--- a/ospfd/ChangeLog
+++ b/ospfd/ChangeLog
@@ -1,3 +1,10 @@
+2004-10-03 James R. Leu <jleu at mindspring.com>
+
+	* ospf_zebra.c: Read router id related messages from zebra daemon.
+	  Schedule router-id update thread if it's changed.
+	* ospfd.c: Remove own router-id selection function. Use router id from
+	  zebra daemon if it isn't manually overriden in configuration.
+
 2004-09-27 Paul Jakma <paul@dishone.st>
 
 	* ospf_dump.c: (ospf_ip_header_dump) Use HAVE_IP_HDRINCL_BSD_ORDER
diff --git a/ospfd/ospf_zebra.c b/ospfd/ospf_zebra.c
index 6a675a59..3172ebc5 100644
--- a/ospfd/ospf_zebra.c
+++ b/ospfd/ospf_zebra.c
@@ -54,6 +54,28 @@ struct zclient *zclient = NULL;
 
 /* For registering threads. */
 extern struct thread_master *master;
+struct in_addr router_id_zebra;
+
+/* Router-id update message from zebra. */
+int
+ospf_router_id_update_zebra (int command, struct zclient *zclient,
+			     zebra_size_t length)
+{
+  struct ospf *ospf;
+  struct prefix router_id;
+  zebra_router_id_update_read(zclient->ibuf,&router_id);
+
+  router_id_zebra = router_id.u.prefix4;
+
+  ospf = ospf_lookup ();
+  if (ospf != NULL)
+    {
+      if (ospf->t_router_id_update == NULL)
+	OSPF_TIMER_ON (ospf->t_router_id_update, ospf_router_id_update_timer,
+                       OSPF_ROUTER_ID_UPDATE_DELAY);
+    }
+  return 0;
+}
 
 /* Inteface addition message from zebra. */
 int
@@ -148,20 +170,6 @@ zebra_interface_if_lookup (struct stream *s)
   return ifp;
 }
 
-void
-zebra_interface_if_set_value (struct stream *s, struct interface *ifp)
-{
-  /* Read interface's index. */
-  ifp->ifindex = stream_getl (s);
-
-  /* Read interface's value. */
-  ifp->status = stream_getc (s);
-  ifp->flags = stream_getl (s);
-  ifp->metric = stream_getl (s);
-  ifp->mtu = stream_getl (s);
-  ifp->bandwidth = stream_getl (s);
-}
-
 int
 ospf_interface_state_up (int command, struct zclient *zclient,
                          zebra_size_t length)
@@ -1248,6 +1256,7 @@ ospf_zebra_init ()
   /* Allocate zebra structure. */
   zclient = zclient_new ();
   zclient_init (zclient, ZEBRA_ROUTE_OSPF);
+  zclient->router_id_update = ospf_router_id_update_zebra;
   zclient->interface_add = ospf_interface_add;
   zclient->interface_delete = ospf_interface_delete;
   zclient->interface_up = ospf_interface_state_up;
diff --git a/ospfd/ospfd.c b/ospfd/ospfd.c
index bfde503d..6c6dd8de 100644
--- a/ospfd/ospfd.c
+++ b/ospfd/ospfd.c
@@ -61,6 +61,7 @@ static struct ospf_master ospf_master;
 struct ospf_master *om;
 
 extern struct zclient *zclient;
+extern struct in_addr router_id_zebra;
 
 
 void ospf_remove_vls_through_area (struct ospf *, struct ospf_area *);
@@ -68,33 +69,6 @@ void ospf_network_free (struct ospf *, struct ospf_network *);
 void ospf_area_free (struct ospf_area *);
 void ospf_network_run (struct ospf *, struct prefix *, struct ospf_area *);
 
-/* Get Router ID from ospf interface list. */
-struct in_addr
-ospf_router_id_get (struct list *if_list)
-{
-  struct listnode *node;
-  struct in_addr router_id;
-
-  memset (&router_id, 0, sizeof (struct in_addr));
-
-  for (node = listhead (if_list); node; nextnode (node))
-    {
-      struct ospf_interface *oi = getdata (node);
-
-      if (!if_is_up (oi->ifp) ||
-	  OSPF_IF_PARAM (oi, passive_interface) == OSPF_IF_PASSIVE)
-	continue;
-      
-      /* Ignore virtual link interface. */
-      if (oi->type != OSPF_IFTYPE_VIRTUALLINK &&
-	  oi->type != OSPF_IFTYPE_LOOPBACK) 
-	if (IPV4_ADDR_CMP (&router_id, &oi->address->u.prefix4) < 0)
-	  router_id = oi->address->u.prefix4;
-    }
-
-  return router_id;
-}
-
 #define OSPF_EXTERNAL_LSA_ORIGINATE_DELAY 1
 
 void
@@ -111,7 +85,7 @@ ospf_router_id_update (struct ospf *ospf)
   if (ospf->router_id_static.s_addr != 0)
     router_id = ospf->router_id_static;
   else
-    router_id = ospf_router_id_get (ospf->oiflist);
+    router_id = router_id_zebra;
 
   ospf->router_id = router_id;
   
-- 
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