handle routing properly in lone-master case

[l2tpns.git] / cluster.c

diff --git a/cluster.c b/cluster.c
index ca9b241..890b2d0 100644 (file)
--- a/cluster.c
+++ b/cluster.c
@@ -1,6 +1,6 @@
 // L2TPNS Clustering Stuff
 
 // L2TPNS Clustering Stuff
 

-char const *cvs_id_cluster = "$Id: cluster.c,v 1.16 2004-11-05 04:55:26 bodea Exp $";
+char const *cvs_id_cluster = "$Id: cluster.c,v 1.17 2004-11-09 03:09:12 bodea Exp $";

 
 #include <stdio.h>
 #include <sys/file.h>
 
 #include <stdio.h>
 #include <sys/file.h>


@@ -188,6 +188,18 @@ static void add_type(char ** p, int type, int more, char * data, int size)
        }
 }
 
        }
 }
 

+// advertise our presence via BGP or gratuitous ARP
+static void advertise(void)
+{
+#ifdef BGP
+       if (bgp_configured)
+               bgp_enable_routing(1);
+       else
+#endif /* BGP */
+               if (config->send_garp)
+                       send_garp(config->bind_address);        // Start taking traffic.
+}
+

 void cluster_uptodate(void)
 {
        if (config->cluster_iam_uptodate)
 void cluster_uptodate(void)
 {
        if (config->cluster_iam_uptodate)


@@ -199,14 +211,7 @@ void cluster_uptodate(void)
        config->cluster_iam_uptodate = 1;
 
        LOG(0,0,0,0, "Now uptodate with master.\n");
        config->cluster_iam_uptodate = 1;
 
        LOG(0,0,0,0, "Now uptodate with master.\n");

-
-#ifdef BGP
-       if (bgp_configured)
-               bgp_enable_routing(1);
-       else
-#endif /* BGP */
-               if (config->send_garp)
-                       send_garp(config->bind_address);        // Start taking traffic.
+       advertise();

 }
 
 //
 }
 
 //


@@ -456,11 +461,9 @@ void cluster_check_slaves(void)
        }
 
 #ifdef BGP
        }
 
 #ifdef BGP

-       // master lost all slaves, need to handle traffic ourself
-       if (bgp_configured && had_peers && !have_peers)
-               bgp_enable_routing(1);
-       else if (bgp_configured && !had_peers && have_peers)
-               bgp_enable_routing(0);
+       // in a cluster, withdraw/add routes when we get a peer/lose all peers
+       if (bgp_configured && have_peers != had_peers)
+               bgp_enable_routing(!have_peers);

 #endif /* BGP */
 }
 
 #endif /* BGP */
 }
 


@@ -610,6 +613,9 @@ void cluster_check_master(void)
        config->cluster_undefined_tunnels = 0;
        config->cluster_iam_uptodate = 1; // assume all peers are up-to-date
 
        config->cluster_undefined_tunnels = 0;
        config->cluster_iam_uptodate = 1; // assume all peers are up-to-date
 

+       if (!num_peers) // lone master
+               advertise();
+

        // FIXME. We need to fix up the tunnel control message
        // queue here! There's a number of other variables we
        // should also update.
        // FIXME. We need to fix up the tunnel control message
        // queue here! There's a number of other variables we
        // should also update.