fix command line args

[l2tpns.git] / cluster.c

diff --git a/cluster.c b/cluster.c
index a251a77..df7d9ab 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 1.7 2004-07-07 09:09:53 bodea Exp $";
+char const *cvs_id_cluster = "$Id: cluster.c,v 1.12 2004-09-21 04:30:46 fred_nerk Exp $";

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


@@ -66,7 +66,6 @@ static struct {
        int     uptodate;
 } peers[CLUSTER_MAX_SIZE];     // List of all the peers we've heard from.
 static int num_peers;          // Number of peers in list.
        int     uptodate;
 } peers[CLUSTER_MAX_SIZE];     // List of all the peers we've heard from.
 static int num_peers;          // Number of peers in list.

-static int have_peers;         // At least one up to date peer

 
 int rle_decompress(u8 ** src_p, int ssize, u8 *dst, int dsize);
 int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize);
 
 int rle_decompress(u8 ** src_p, int ssize, u8 *dst, int dsize);
 int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize);


@@ -78,65 +77,68 @@ int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize);
 //
 int cluster_init()
 {
 //
 int cluster_init()
 {

-    struct sockaddr_in addr;
-    struct sockaddr_in interface_addr;
-    struct ip_mreq mreq;
-    struct ifreq   ifr;
-    int opt = 0;
+       struct sockaddr_in addr;
+       struct sockaddr_in interface_addr;
+       struct ip_mreq mreq;
+       struct ifreq   ifr;
+       int opt = 0;

 
 

-    config->cluster_undefined_sessions = MAXSESSION-1;
-    config->cluster_undefined_tunnels = MAXTUNNEL-1;
+       config->cluster_undefined_sessions = MAXSESSION-1;
+       config->cluster_undefined_tunnels = MAXTUNNEL-1;

 
 

-    if (!config->cluster_address)
-       return 0;
-    if (!*config->cluster_interface)
-       return 0;
+       if (!config->cluster_address)
+               return 0;
+       if (!*config->cluster_interface)
+               return 0;

 
 

-    cluster_sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+       cluster_sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);

 
 

-    memset(&addr, 0, sizeof(addr));
-    addr.sin_family = AF_INET;
-    addr.sin_port = htons(CLUSTERPORT);
-    addr.sin_addr.s_addr = INADDR_ANY;
-    setsockopt(cluster_sockfd, SOL_SOCKET, SO_REUSEADDR, &addr, sizeof(addr));
+       memset(&addr, 0, sizeof(addr));
+       addr.sin_family = AF_INET;
+       addr.sin_port = htons(CLUSTERPORT);
+       addr.sin_addr.s_addr = INADDR_ANY;
+       setsockopt(cluster_sockfd, SOL_SOCKET, SO_REUSEADDR, &addr, sizeof(addr));

 
 

-    if (bind(cluster_sockfd, (void *) &addr, sizeof(addr)) < 0)
-    {
-       log(0, 0, 0, 0, "Failed to bind cluster socket: %s\n", strerror(errno));
-       return -1;
-    }
+       if (bind(cluster_sockfd, (void *) &addr, sizeof(addr)) < 0)
+       {
+               log(0, 0, 0, 0, "Failed to bind cluster socket: %s\n", strerror(errno));
+               return -1;
+       }

 
 

-    strcpy(ifr.ifr_name, config->cluster_interface);
-    if (ioctl(cluster_sockfd, SIOCGIFADDR, &ifr) < 0) {
-       log(0, 0, 0, 0, "Failed to get interface address for (%s): %s\n", config->cluster_interface, strerror(errno));
-       return -1;
-    }
+       strcpy(ifr.ifr_name, config->cluster_interface);
+       if (ioctl(cluster_sockfd, SIOCGIFADDR, &ifr) < 0)
+       {
+               log(0, 0, 0, 0, "Failed to get interface address for (%s): %s\n", config->cluster_interface, strerror(errno));
+               return -1;
+       }

 
 

-    memcpy(&interface_addr, &ifr.ifr_addr, sizeof(interface_addr) );
-    my_address = interface_addr.sin_addr.s_addr;
+       memcpy(&interface_addr, &ifr.ifr_addr, sizeof(interface_addr));
+       my_address = interface_addr.sin_addr.s_addr;

 
 

-               // Join multicast group.
-    mreq.imr_multiaddr.s_addr = config->cluster_address;
-    mreq.imr_interface = interface_addr.sin_addr;
+                               // Join multicast group.
+       mreq.imr_multiaddr.s_addr = config->cluster_address;
+       mreq.imr_interface = interface_addr.sin_addr;

 
 
 
 

-    opt = 0;   // Turn off multicast loopback.
-    setsockopt(cluster_sockfd, IPPROTO_IP, IP_MULTICAST_LOOP, &opt, sizeof(opt));
+       opt = 0;                // Turn off multicast loopback.
+       setsockopt(cluster_sockfd, IPPROTO_IP, IP_MULTICAST_LOOP, &opt, sizeof(opt));

 
 

-    if (setsockopt(cluster_sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0) {
-       log(0, 0, 0, 0, "Failed to setsockopt (join mcast group): %s\n", strerror(errno));
-       return -1;
-    }
+       if (setsockopt(cluster_sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0)
+       {
+               log(0, 0, 0, 0, "Failed to setsockopt (join mcast group): %s\n", strerror(errno));
+               return -1;
+       }

 
 

-    if (setsockopt (cluster_sockfd, IPPROTO_IP, IP_MULTICAST_IF, &interface_addr, sizeof(interface_addr)) < 0) {
-       log(0, 0, 0, 0, "Failed to setsockopt (set mcast interface): %s\n", strerror(errno));
-       return -1;
-    }
+       if (setsockopt (cluster_sockfd, IPPROTO_IP, IP_MULTICAST_IF, &interface_addr, sizeof(interface_addr)) < 0)
+       {
+               log(0, 0, 0, 0, "Failed to setsockopt (set mcast interface): %s\n", strerror(errno));
+               return -1;
+       }

 
 

-    config->cluster_last_hb = TIME;
-    config->cluster_seq_number = -1;
+       config->cluster_last_hb = TIME;
+       config->cluster_seq_number = -1;

 
 

-    return cluster_sockfd;
+       return cluster_sockfd;

 }
 
 
 }
 
 


@@ -147,24 +149,24 @@ int cluster_init()
 
 int cluster_send_data(void *data, int datalen)
 {
 
 int cluster_send_data(void *data, int datalen)
 {

-    struct sockaddr_in addr = {0};
+       struct sockaddr_in addr = {0};

 
 

-    if (!cluster_sockfd) return -1;
-    if (!config->cluster_address) return 0;
+       if (!cluster_sockfd) return -1;
+       if (!config->cluster_address) return 0;

 
 

-    addr.sin_addr.s_addr = config->cluster_address;
-    addr.sin_port = htons(CLUSTERPORT);
-    addr.sin_family = AF_INET;
+       addr.sin_addr.s_addr = config->cluster_address;
+       addr.sin_port = htons(CLUSTERPORT);
+       addr.sin_family = AF_INET;

 
 

-    log(5,0,0,0, "Cluster send data: %d bytes\n", datalen);
+       log(5,0,0,0, "Cluster send data: %d bytes\n", datalen);

 
 

-    if (sendto(cluster_sockfd, data, datalen, MSG_NOSIGNAL, (void *) &addr, sizeof(addr)) < 0)
-    {
-       log(0, 0, 0, 0, "sendto: %s\n", strerror(errno));
-       return -1;
-    }
+       if (sendto(cluster_sockfd, data, datalen, MSG_NOSIGNAL, (void *) &addr, sizeof(addr)) < 0)
+       {
+               log(0, 0, 0, 0, "sendto: %s\n", strerror(errno));
+               return -1;
+       }

 
 

-    return 0;
+       return 0;

 }
 
 //
 }
 
 //


@@ -213,27 +215,27 @@ void cluster_uptodate(void)
 //
 int peer_send_data(u32 peer, char * data, int size)
 {
 //
 int peer_send_data(u32 peer, char * data, int size)
 {

-    struct sockaddr_in addr = {0};
+       struct sockaddr_in addr = {0};

 
 

-    if (!cluster_sockfd) return -1;
-    if (!config->cluster_address) return 0;
+       if (!cluster_sockfd) return -1;
+       if (!config->cluster_address) return 0;

 
 

-    if (!peer) // Odd??
+       if (!peer)      // Odd??

        return -1;
 
        return -1;
 

-    addr.sin_addr.s_addr = peer;
-    addr.sin_port = htons(CLUSTERPORT);
-    addr.sin_family = AF_INET;
+       addr.sin_addr.s_addr = peer;
+       addr.sin_port = htons(CLUSTERPORT);
+       addr.sin_family = AF_INET;

 
 

-    log_hex(5, "Peer send", data, size);
+       log_hex(5, "Peer send", data, size);

 
 

-    if (sendto(cluster_sockfd, data, size, MSG_NOSIGNAL, (void *) &addr, sizeof(addr)) < 0)
-    {
-       log(0, 0, 0, 0, "sendto: %s\n", strerror(errno));
-       return -1;
-    }
+       if (sendto(cluster_sockfd, data, size, MSG_NOSIGNAL, (void *) &addr, sizeof(addr)) < 0)
+       {
+               log(0, 0, 0, 0, "sendto: %s\n", strerror(errno));
+               return -1;
+       }

 
 

-    return 0;
+       return 0;

 }
 
 //
 }
 
 //


@@ -254,12 +256,12 @@ int peer_send_message(u32 peer, int type, int more, char * data, int size)
 // Forward a state changing packet to the master.
 //
 // The master just processes the payload as if it had
 // Forward a state changing packet to the master.
 //
 // The master just processes the payload as if it had

-// received it off the tap device.
+// received it off the tun device.

 //
 //

-int master_forward_packet(char * data, int size, u32 addr, int port)
+int master_forward_packet(char *data, int size, u32 addr, int port)

 {
        char buf[65536];        // Vast overkill.
 {
        char buf[65536];        // Vast overkill.

-       char * p = buf;
+       char *p = buf;

 
        if (!config->cluster_master_address) // No election has been held yet. Just skip it.
                return -1;
 
        if (!config->cluster_master_address) // No election has been held yet. Just skip it.
                return -1;


@@ -329,25 +331,19 @@ int master_garden_packet(sessionidt s, char *data, int size)
 //
 static void send_heartbeat(int seq, char * data, int size)
 {
 //
 static void send_heartbeat(int seq, char * data, int size)
 {

-    int i;
-    static int last_seq = -1;
-
-    if (last_seq != -1 && (seq != (last_seq+1)%HB_MAX_SEQ) ) {
-       log(0,0,0,0, "FATAL: Sequence number skipped! (%d != %d)\n",
-               seq, last_seq);
-    } 
-    last_seq = seq;
-
-    if (size > sizeof(past_hearts[0].data)) {
-       log(0,0,0,0, "Tried to heartbeat something larger than the maximum packet!\n");
-       kill(0, SIGTERM);
-       exit(1);
-    }
-    i = seq % HB_HISTORY_SIZE;
-    past_hearts[i].seq = seq;
-    past_hearts[i].size = size;
-    memcpy(&past_hearts[i].data, data, size);  // Save it.
-    cluster_send_data(data, size);
+       int i;
+
+       if (size > sizeof(past_hearts[0].data))
+       {
+               log(0,0,0,0, "Tried to heartbeat something larger than the maximum packet!\n");
+               kill(0, SIGTERM);
+               exit(1);
+       }
+       i = seq % HB_HISTORY_SIZE;
+       past_hearts[i].seq = seq;
+       past_hearts[i].size = size;
+       memcpy(&past_hearts[i].data, data, size);       // Save it.
+       cluster_send_data(data, size);

 }
 
 //
 }
 
 //


@@ -426,56 +422,90 @@ void master_update_counts(void)
        return;
 }
 
        return;
 }
 

+//
+// On the master, check how our slaves are going. If
+// one of them's not up-to-date we'll heartbeat faster.
+// If we don't have any of them, then we need to turn
+// on our own packet handling!
+//
+void cluster_check_slaves(void)
+{
+       int i;
+       static int have_peers = 0;
+       int had_peers = have_peers;
+       clockt t = TIME;
+
+       if (!config->cluster_iam_master)
+               return;         // Only runs on the master...
+
+       config->cluster_iam_uptodate = 1;       // cleared in loop below
+
+       for (i = have_peers = 0; i < num_peers; i++)
+       {
+               if ((peers[i].timestamp + config->cluster_hb_timeout) < t)
+                       continue;       // Stale peer! Skip them.
+
+               if (!peers[i].basetime)
+                       continue;       // Shutdown peer! Skip them.
+
+               if (peers[i].uptodate)
+                       have_peers = 1;
+
+               if (!peers[i].uptodate)
+                       config->cluster_iam_uptodate = 0; // Start fast heartbeats
+       }
+
+#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);
+#endif /* BGP */
+}
+

 //
 // Check that we have a master. If it's been too
 // long since we heard from a master then hold an election.
 //
 void cluster_check_master(void)
 {
 //
 // Check that we have a master. If it's been too
 // long since we heard from a master then hold an election.
 //
 void cluster_check_master(void)
 {

-       int i, count, tcount, high_sid = 0;
+       int i, count, tcount, high_unique_id = 0;

        int last_free = 0;
        int last_free = 0;

-       int had_peers = have_peers;

        clockt t = TIME;
        static int probed = 0;
 
        clockt t = TIME;
        static int probed = 0;
 

-       if (TIME < (config->cluster_last_hb + config->cluster_hb_timeout))
+       if (config->cluster_iam_master)
+               return;         // Only runs on the slaves...
+
+       // If the master is late (missed 2 hearbeats by a second and a
+       // hair) it may be that the switch has dropped us from the
+       // multicast group, try unicasting one probe to the master
+       // which will hopefully respond with a unicast heartbeat that
+       // will allow us to limp along until the querier next runs.
+       if (TIME > (config->cluster_last_hb + 2 * config->cluster_hb_interval + 11))

        {
        {

-               // If the master is late (missed 2 hearbeats by a second and a
-               // hair) it may be that the switch has dropped us from the
-               // multicast group, try unicasting one probe to the master
-               // which will hopefully respond with a unicast heartbeat that
-               // will allow us to limp along until the querier next runs.
-               if (config->cluster_master_address
-                   && TIME > (config->cluster_last_hb + 2 * config->cluster_hb_interval + 11))
+               if (!probed && config->cluster_master_address)

                {
                {

-                       if (!probed)
-                       {
-                               probed = 1;
-                               log(1, 0, 0, 0, "Heartbeat from master %.1fs late, probing...\n",
-                                   TIME - (config->cluster_last_hb + config->cluster_hb_interval));
-
-                               peer_send_message(config->cluster_master_address,
-                                   C_LASTSEEN, config->cluster_seq_number, NULL, 0);
-                       }
-               } else {        // We got a recent heartbeat; reset the probe flag.
-                       probed = 0;
-               }
+                       probed = 1;
+                       log(1, 0, 0, 0, "Heartbeat from master %.1fs late, probing...\n",
+                               0.1 * (TIME - (config->cluster_last_hb + config->cluster_hb_interval)));

 
 

-               if (!config->cluster_iam_master)
-                       return;         // Everything's ok. return.
-
-               // Master needs to check peer state
+                       peer_send_message(config->cluster_master_address,
+                               C_LASTSEEN, config->cluster_seq_number, NULL, 0);
+               }
+       } else {        // We got a recent heartbeat; reset the probe flag.
+               probed = 0;

        }
 
        }
 

-       config->cluster_last_hb = TIME + 1;
+       if (TIME < (config->cluster_last_hb + config->cluster_hb_timeout))
+               return; // Everything's ok!

 
 

-       if (config->cluster_iam_master)
-               config->cluster_iam_uptodate = 1;       // cleared in loop below
-       else
-               log(0,0,0,0, "Master timed out! Holding election...\n");
+       config->cluster_last_hb = TIME + 1;     // Just the one election thanks.

 
 

+       log(0,0,0,0, "Master timed out! Holding election...\n");

 
 

-       for (i = have_peers = 0; i < num_peers; i++)
+       for (i = 0; i < num_peers; i++)

        {
                if ((peers[i].timestamp + config->cluster_hb_timeout) < t)
                        continue;       // Stale peer! Skip them.
        {
                if ((peers[i].timestamp + config->cluster_hb_timeout) < t)
                        continue;       // Stale peer! Skip them.


@@ -483,17 +513,6 @@ void cluster_check_master(void)
                if (!peers[i].basetime)
                        continue;       // Shutdown peer! Skip them.
 
                if (!peers[i].basetime)
                        continue;       // Shutdown peer! Skip them.
 

-               if (peers[i].uptodate)
-                       have_peers = 1;
-
-               if (config->cluster_iam_master)
-               {
-                       if (!peers[i].uptodate)
-                               config->cluster_iam_uptodate = 0; // Start fast heartbeats
-
-                       continue;
-               }
-

                if (peers[i].basetime < basetime) {
                        log(1,0,0,0, "Expecting %s to become master\n", inet_toa(peers[i].peer) );
                        return;         // They'll win the election. Get out of here.
                if (peers[i].basetime < basetime) {
                        log(1,0,0,0, "Expecting %s to become master\n", inet_toa(peers[i].peer) );
                        return;         // They'll win the election. Get out of here.


@@ -506,16 +525,6 @@ void cluster_check_master(void)
                }
        }
 
                }
        }
 

-       if (config->cluster_iam_master)         // If we're the master, we've already won
-       {
-#ifdef BGP
-               // master lost all slaves, need to handle traffic ourself
-               if (bgp_configured && had_peers && !have_peers)
-                       bgp_enable_routing(1);
-#endif /* BGP */
-               return;
-       }
-

                // Wow. it's been ages since I last heard a heartbeat
                // and I'm better than an of my peers so it's time
                // to become a master!!!
                // Wow. it's been ages since I last heard a heartbeat
                // and I'm better than an of my peers so it's time
                // to become a master!!!


@@ -525,11 +534,6 @@ void cluster_check_master(void)
 
        log(0,0,0,0, "I am declaring myself the master!\n");
 
 
        log(0,0,0,0, "I am declaring myself the master!\n");
 

-#ifdef BGP
-       if (bgp_configured && have_peers)
-               bgp_enable_routing(0); /* stop handling traffic */
-#endif /* BGP */
-

        if (config->cluster_seq_number == -1)
                config->cluster_seq_number = 0;
 
        if (config->cluster_seq_number == -1)
                config->cluster_seq_number = 0;
 


@@ -553,7 +557,7 @@ void cluster_check_master(void)
                // Re-string the free list.
                // Find the ID of the highest session.
        last_free = 0;
                // Re-string the free list.
                // Find the ID of the highest session.
        last_free = 0;

-       high_sid = 0;
+       high_unique_id = 0;

        config->cluster_highest_sessionid = 0;
        for (i = 0, count = 0; i < MAXSESSION; ++i) {
                if (session[i].tunnel == T_UNDEF) {
        config->cluster_highest_sessionid = 0;
        for (i = 0, count = 0; i < MAXSESSION; ++i) {
                if (session[i].tunnel == T_UNDEF) {


@@ -580,8 +584,8 @@ void cluster_check_master(void)
 
                session[i].radius = 0;  // Reset authentication as the radius blocks aren't up to date.
 
 
                session[i].radius = 0;  // Reset authentication as the radius blocks aren't up to date.
 

-               if (session[i].sid >= high_sid) // This is different to the index into the session table!!!
-                       high_sid = session[i].sid+1;
+               if (session[i].unique_id >= high_unique_id)     // This is different to the index into the session table!!!
+                       high_unique_id = session[i].unique_id+1;

 
 
                session[i].tbf_in = session[i].tbf_out = 0; // Remove stale pointers from old master.
 
 
                session[i].tbf_in = session[i].tbf_out = 0; // Remove stale pointers from old master.


@@ -599,7 +603,7 @@ void cluster_check_master(void)
        }
 
        session[last_free].next = 0;    // End of chain.
        }
 
        session[last_free].next = 0;    // End of chain.

-       last_sid = high_sid;            // Keep track of the highest used session ID.
+       last_id = high_unique_id;               // Keep track of the highest used session ID.

 
        become_master();
 
 
        become_master();
 


@@ -611,7 +615,7 @@ void cluster_check_master(void)
 
        config->cluster_undefined_sessions = 0;
        config->cluster_undefined_tunnels = 0;
 
        config->cluster_undefined_sessions = 0;
        config->cluster_undefined_tunnels = 0;

-       config->cluster_iam_uptodate = 1; // assume all peers are up-to-date
+       config->cluster_iam_uptodate = 1; // assume all peers are up-to-date

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


@@ -897,13 +901,8 @@ int cluster_catchup_slave(int seq, u32 slave)
        while (seq != config->cluster_seq_number) {
                s = seq%HB_HISTORY_SIZE;
                if (seq != past_hearts[s].seq) {
        while (seq != config->cluster_seq_number) {
                s = seq%HB_HISTORY_SIZE;
                if (seq != past_hearts[s].seq) {

-                       int i;

                        log(0,0,0,0, "Tried to re-send heartbeat for %s but %d doesn't match %d! (%d,%d)\n",
                                inet_toa(slave), seq, past_hearts[s].seq, s, config->cluster_seq_number);
                        log(0,0,0,0, "Tried to re-send heartbeat for %s but %d doesn't match %d! (%d,%d)\n",
                                inet_toa(slave), seq, past_hearts[s].seq, s, config->cluster_seq_number);

-
-                       for (i = 0; i < HB_HISTORY_SIZE; ++i) {
-                               log(0,0,0,0, "\tentry %3d: seq %d (size %d)\n", i, past_hearts[s].seq, past_hearts[s].size);
-                       }

                        return -1;      // What to do here!?
                }
                peer_send_data(slave, past_hearts[s].data, past_hearts[s].size);
                        return -1;      // What to do here!?
                }
                peer_send_data(slave, past_hearts[s].data, past_hearts[s].size);


@@ -916,12 +915,23 @@ int cluster_catchup_slave(int seq, u32 slave)
 // We've heard from another peer! Add it to the list
 // that we select from at election time.
 //
 // We've heard from another peer! Add it to the list
 // that we select from at election time.
 //

-int cluster_add_peer(u32 peer, time_t basetime, pingt *p)
+int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size)

 {
        int i;
        u32 clusterid;
 {
        int i;
        u32 clusterid;

+       pingt p;
+
+       // Allow for backward compatability.
+       // Just the ping packet into a new structure to allow
+       // for the possibility that we might have received
+       // more or fewer elements than we were expecting.
+       if (size > sizeof(p))
+               size = sizeof(p);
+
+       memset( (void*) &p, 0, sizeof(p) );
+       memcpy( (void*) &p, (void*) pp, size);

 
 

-       clusterid = p->addr;
+       clusterid = p.addr;

        if (clusterid != config->bind_address)
        {
                // Is this for us?
        if (clusterid != config->bind_address)
        {
                // Is this for us?


@@ -937,12 +947,13 @@ int cluster_add_peer(u32 peer, time_t basetime, pingt *p)
                // This peer already exists. Just update the timestamp.
                peers[i].basetime = basetime;
                peers[i].timestamp = TIME;
                // This peer already exists. Just update the timestamp.
                peers[i].basetime = basetime;
                peers[i].timestamp = TIME;

-               peers[i].uptodate = !p->undef;
+               peers[i].uptodate = !p.undef;

                break;
        }
 
                break;
        }
 

-               // Is this the master shutting down??
+       // Is this the master shutting down??

        if (peer == config->cluster_master_address && !basetime) {
        if (peer == config->cluster_master_address && !basetime) {

+               log(3,0,0,0, "Master %s shutting down...\n", inet_toa(config->cluster_master_address));

                config->cluster_master_address = 0;
                config->cluster_last_hb = 0; // Force an election.
                cluster_check_master();
                config->cluster_master_address = 0;
                config->cluster_last_hb = 0; // Force an election.
                cluster_check_master();


@@ -973,28 +984,13 @@ int cluster_add_peer(u32 peer, time_t basetime, pingt *p)
                peers[i].peer = peer;
                peers[i].basetime = basetime;
                peers[i].timestamp = TIME;
                peers[i].peer = peer;
                peers[i].basetime = basetime;
                peers[i].timestamp = TIME;

-               peers[i].uptodate = !p->undef;
+               peers[i].uptodate = !p.undef;

                if (i == num_peers)
                        ++num_peers;
 
                log(1,0,0,0, "Added %s as a new peer. Now %d peers\n", inet_toa(peer), num_peers);
        }
 
                if (i == num_peers)
                        ++num_peers;
 
                log(1,0,0,0, "Added %s as a new peer. Now %d peers\n", inet_toa(peer), num_peers);
        }
 

-       if (peers[i].uptodate)
-       {
-#ifdef BGP
-               /* drop routes if we've now got a peer */
-               if (config->cluster_iam_master && bgp_configured && !have_peers)
-                       bgp_enable_routing(0);
-#endif /* BGP */
-               have_peers = 1;
-       }
-       else if (config->cluster_iam_master)
-       {
-               config->cluster_iam_uptodate = 0; // increase heart-rate...
-       }
-
-

        return 1;
 }
 
        return 1;
 }
 


@@ -1183,17 +1179,17 @@ static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
                if (h->interval != config->cluster_hb_interval)
                {
                        log(2, 0, 0, 0, "Master set ping/heartbeat interval to %u (was %u)\n",
                if (h->interval != config->cluster_hb_interval)
                {
                        log(2, 0, 0, 0, "Master set ping/heartbeat interval to %u (was %u)\n",

-                           h->interval, config->cluster_hb_interval);
+                               h->interval, config->cluster_hb_interval);

 
 

-                       config->cluster_hb_interval = h->interval;
+                       config->cluster_hb_interval = h->interval;

                }
 
                if (h->timeout != config->cluster_hb_timeout)
                {
                        log(2, 0, 0, 0, "Master set heartbeat timeout to %u (was %u)\n",
                }
 
                if (h->timeout != config->cluster_hb_timeout)
                {
                        log(2, 0, 0, 0, "Master set heartbeat timeout to %u (was %u)\n",

-                           h->timeout, config->cluster_hb_timeout);
+                               h->timeout, config->cluster_hb_timeout);

 
 

-                       config->cluster_hb_timeout = h->timeout;
+                       config->cluster_hb_timeout = h->timeout;

                }
        }
 
                }
        }
 


@@ -1316,7 +1312,7 @@ int processcluster(char * data, int size, u32 addr)
 
        switch (type) {
        case C_PING:    // Update the peers table.
 
        switch (type) {
        case C_PING:    // Update the peers table.

-               return cluster_add_peer(addr, more, (pingt*)p);
+               return cluster_add_peer(addr, more, (pingt*)p, s);

 
        case C_LASTSEEN:        // Catch up a slave (slave missed a packet).
                return cluster_catchup_slave(more, addr);
 
        case C_LASTSEEN:        // Catch up a slave (slave missed a packet).
                return cluster_catchup_slave(more, addr);


@@ -1393,7 +1389,7 @@ int processcluster(char * data, int size, u32 addr)
        return 0;
 
 shortpacket:
        return 0;
 
 shortpacket:

-       log(0,0,0,0, "I got an cluster heartbeat packet! This means I'm probably out of sync!!\n");
+       log(0,0,0,0, "I got a _short_ cluster heartbeat packet! This means I'm probably out of sync!!\n");

        return -1;
 }
 
        return -1;
 }
 


@@ -1406,17 +1402,17 @@ int cmd_show_cluster(struct cli_def *cli, char *command, char **argv, int argc)
        if (CLI_HELP_REQUESTED)
                return CLI_HELP_NO_ARGS;
 
        if (CLI_HELP_REQUESTED)
                return CLI_HELP_NO_ARGS;
 

-        cli_print(cli, "Cluster status   : %s", config->cluster_iam_master ? "Master" : "Slave" );
+       cli_print(cli, "Cluster status   : %s", config->cluster_iam_master ? "Master" : "Slave" );

        cli_print(cli, "My address       : %s", inet_toa(my_address));
        cli_print(cli, "VIP address      : %s", inet_toa(config->bind_address));
        cli_print(cli, "Multicast address: %s", inet_toa(config->cluster_address));
        cli_print(cli, "Multicast i'face : %s", config->cluster_interface);
 
        cli_print(cli, "My address       : %s", inet_toa(my_address));
        cli_print(cli, "VIP address      : %s", inet_toa(config->bind_address));
        cli_print(cli, "Multicast address: %s", inet_toa(config->cluster_address));
        cli_print(cli, "Multicast i'face : %s", config->cluster_interface);
 

-        if (!config->cluster_iam_master) {
+       if (!config->cluster_iam_master) {

                cli_print(cli, "My master        : %s (last heartbeat %.1f seconds old)",
                        config->cluster_master_address ? inet_toa(config->cluster_master_address) : "Not defined",
                        0.1 * (TIME - config->cluster_last_hb));
                cli_print(cli, "My master        : %s (last heartbeat %.1f seconds old)",
                        config->cluster_master_address ? inet_toa(config->cluster_master_address) : "Not defined",
                        0.1 * (TIME - config->cluster_last_hb));

-                cli_print(cli, "Uptodate         : %s", config->cluster_iam_uptodate ? "Yes" : "No");
+               cli_print(cli, "Uptodate         : %s", config->cluster_iam_uptodate ? "Yes" : "No");

                cli_print(cli, "Next sequence number expected: %d", config->cluster_seq_number);
                cli_print(cli, "%d sessions undefined of %d", config->cluster_undefined_sessions, config->cluster_highest_sessionid);
                cli_print(cli, "%d tunnels undefined of %d", config->cluster_undefined_tunnels, config->cluster_highest_tunnelid);
                cli_print(cli, "Next sequence number expected: %d", config->cluster_seq_number);
                cli_print(cli, "%d sessions undefined of %d", config->cluster_undefined_sessions, config->cluster_highest_sessionid);
                cli_print(cli, "%d tunnels undefined of %d", config->cluster_undefined_tunnels, config->cluster_highest_tunnelid);