handle routing properly in lone-master case

diff --git a/Changes b/Changes
index f970ae3..1813202 100644 (file)
--- a/Changes
+++ b/Changes
@@ -1,3 +1,6 @@
+? Brendan O'Dea <bod@optusnet.com.au> 2.0.5
+- Handle routing properly in lone-master case 
+
 * Mon Nov 8 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.4
 - Added setrxspeed plugin
 - Added peer_address config option

diff --git a/cluster.c b/cluster.c
index c5b7c8b..afb365e 100644 (file)
--- a/cluster.c
+++ b/cluster.c
@@ -1,6 +1,6 @@
 // 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>
@@ -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)
@@ -199,14 +211,7 @@ void cluster_uptodate(void)
        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
-       // 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 */
 }
 
@@ -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
 
+       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.