Update changelog.

[l2tpns.git] / cluster.c

diff --git a/cluster.c b/cluster.c
index 9049079..651307a 100644 (file)
--- a/cluster.c
+++ b/cluster.c
@@ -1,7 +1,5 @@
 // L2TPNS Clustering Stuff
 
 // L2TPNS Clustering Stuff
 

-char const *cvs_id_cluster = "$Id: cluster.c,v 1.40 2005/06/02 11:32:30 bodea Exp $";
-

 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>


@@ -23,6 +21,7 @@ char const *cvs_id_cluster = "$Id: cluster.c,v 1.40 2005/06/02 11:32:30 bodea Ex
 #include "cluster.h"
 #include "util.h"
 #include "tbf.h"
 #include "cluster.h"
 #include "util.h"
 #include "tbf.h"

+#include "pppoe.h"

 
 #ifdef BGP
 #include "bgp.h"
 
 #ifdef BGP
 #include "bgp.h"


@@ -38,10 +37,11 @@ char const *cvs_id_cluster = "$Id: cluster.c,v 1.40 2005/06/02 11:32:30 bodea Ex
  */
 
 // Module variables.
  */
 
 // Module variables.

-int cluster_sockfd = 0;                        // The filedescriptor for the cluster communications port.
+extern int cluster_sockfd;             // The filedescriptor for the cluster communications port.

 
 in_addr_t my_address = 0;              // The network address of my ethernet port.
 static int walk_session_number = 0;    // The next session to send when doing the slow table walk.
 
 in_addr_t my_address = 0;              // The network address of my ethernet port.
 static int walk_session_number = 0;    // The next session to send when doing the slow table walk.

+static int walk_bundle_number = 0;     // The next bundle to send when doing the slow table walk.

 static int walk_tunnel_number = 0;     // The next tunnel to send when doing the slow table walk.
 int forked = 0;                                // Sanity check: CLI must not diddle with heartbeat table
 
 static int walk_tunnel_number = 0;     // The next tunnel to send when doing the slow table walk.
 int forked = 0;                                // Sanity check: CLI must not diddle with heartbeat table
 


@@ -56,7 +56,7 @@ static struct {
 static struct {
        int seq;
        int size;
 static struct {
        int seq;
        int size;

-       char data[MAX_HEART_SIZE];
+       uint8_t data[MAX_HEART_SIZE];

 } past_hearts[HB_HISTORY_SIZE];        // Ring buffer of heartbeats that we've recently sent out. Needed so
                                // we can re-transmit if needed.
 
 } past_hearts[HB_HISTORY_SIZE];        // Ring buffer of heartbeats that we've recently sent out. Needed so
                                // we can re-transmit if needed.
 


@@ -85,6 +85,7 @@ int cluster_init()
        int opt;
 
        config->cluster_undefined_sessions = MAXSESSION-1;
        int opt;
 
        config->cluster_undefined_sessions = MAXSESSION-1;

+       config->cluster_undefined_bundles = MAXBUNDLE-1;

        config->cluster_undefined_tunnels = MAXTUNNEL-1;
 
        if (!config->cluster_address)
        config->cluster_undefined_tunnels = MAXTUNNEL-1;
 
        if (!config->cluster_address)


@@ -127,6 +128,15 @@ int cluster_init()
        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 (config->cluster_mcast_ttl != 1)
+       {
+               uint8_t ttl = 0;
+               if (config->cluster_mcast_ttl > 0)
+                       ttl = config->cluster_mcast_ttl < 256 ? config->cluster_mcast_ttl : 255;
+
+               setsockopt(cluster_sockfd, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl));
+       }
+

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


@@ -178,7 +188,7 @@ static int cluster_send_data(void *data, int datalen)
 // Maintains the format. Assumes that the caller
 // has passed in a big enough buffer!
 //
 // Maintains the format. Assumes that the caller
 // has passed in a big enough buffer!
 //

-static void add_type(char **p, int type, int more, char *data, int size)
+static void add_type(uint8_t **p, int type, int more, uint8_t *data, int size)

 {
        *((uint32_t *) (*p)) = type;
        *p += sizeof(uint32_t);
 {
        *((uint32_t *) (*p)) = type;
        *p += sizeof(uint32_t);


@@ -218,7 +228,7 @@ static void cluster_uptodate(void)
        if (config->cluster_iam_uptodate)
                return;
 
        if (config->cluster_iam_uptodate)
                return;
 

-       if (config->cluster_undefined_sessions || config->cluster_undefined_tunnels)
+       if (config->cluster_undefined_sessions || config->cluster_undefined_tunnels || config->cluster_undefined_bundles)

                return;
 
        config->cluster_iam_uptodate = 1;
                return;
 
        config->cluster_iam_uptodate = 1;


@@ -231,7 +241,7 @@ static void cluster_uptodate(void)
 // Send a unicast UDP packet to a peer with 'data' as the
 // contents.
 //
 // Send a unicast UDP packet to a peer with 'data' as the
 // contents.
 //

-static int peer_send_data(in_addr_t peer, char *data, int size)
+static int peer_send_data(in_addr_t peer, uint8_t *data, int size)

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


@@ -259,10 +269,10 @@ static int peer_send_data(in_addr_t peer, char *data, int size)
 //
 // Send a structured message to a peer with a single element of type 'type'.
 //
 //
 // Send a structured message to a peer with a single element of type 'type'.
 //

-static int peer_send_message(in_addr_t peer, int type, int more, char *data, int size)
+static int peer_send_message(in_addr_t peer, int type, int more, uint8_t *data, int size)

 {
 {

-       char buf[65536];        // Vast overkill.
-       char *p = buf;
+       uint8_t buf[65536];     // Vast overkill.
+       uint8_t *p = buf;

 
        LOG(4, 0, 0, "Sending message to peer (type %d, more %d, size %d)\n", type, more, size);
        add_type(&p, type, more, data, size);
 
        LOG(4, 0, 0, "Sending message to peer (type %d, more %d, size %d)\n", type, more, size);
        add_type(&p, type, more, data, size);


@@ -270,16 +280,36 @@ static int peer_send_message(in_addr_t peer, int type, int more, char *data, int
        return peer_send_data(peer, buf, (p-buf) );
 }
 
        return peer_send_data(peer, buf, (p-buf) );
 }
 

-//
+// send a packet to the master
+static int _forward_packet(uint8_t *data, int size, in_addr_t addr, int port, int type)
+{
+       uint8_t buf[65536];     // Vast overkill.
+       uint8_t *p = buf;
+
+       if (!config->cluster_master_address) // No election has been held yet. Just skip it.
+               return -1;
+
+       LOG(4, 0, 0, "Forwarding packet from %s to master (size %d)\n", fmtaddr(addr, 0), size);
+
+       STAT(c_forwarded);
+       add_type(&p, type, addr, (uint8_t *) &port, sizeof(port)); // ick. should be uint16_t
+       memcpy(p, data, size);
+       p += size;
+
+       return peer_send_data(config->cluster_master_address, buf, (p - buf));
+}
+
+// 

 // Forward a state changing packet to the master.
 //
 // The master just processes the payload as if it had
 // received it off the tun device.
 // Forward a state changing packet to the master.
 //
 // The master just processes the payload as if it had
 // received it off the tun device.

-//
-int master_forward_packet(char *data, int size, in_addr_t addr, int port)
+//(note: THIS ROUTINE WRITES TO pack[-6]).
+int master_forward_packet(uint8_t *data, int size, in_addr_t addr, uint16_t port, uint16_t indexudp)

 {
 {

-       char buf[65536];        // Vast overkill.
-       char *p = buf;
+       uint8_t *p = data - (3 * sizeof(uint32_t));
+       uint8_t *psave = p;
+       uint32_t indexandport = port | ((indexudp << 16) & 0xFFFF0000);

 
        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;


@@ -287,11 +317,33 @@ int master_forward_packet(char *data, int size, in_addr_t addr, int port)
        LOG(4, 0, 0, "Forwarding packet from %s to master (size %d)\n", fmtaddr(addr, 0), size);
 
        STAT(c_forwarded);
        LOG(4, 0, 0, "Forwarding packet from %s to master (size %d)\n", fmtaddr(addr, 0), size);
 
        STAT(c_forwarded);

-       add_type(&p, C_FORWARD, addr, (char *) &port, sizeof(port)); // ick. should be uint16_t
-       memcpy(p, data, size);
-       p += size;
+       add_type(&p, C_FORWARD, addr, (uint8_t *) &indexandport, sizeof(indexandport));

 
 

-       return peer_send_data(config->cluster_master_address, buf, (p - buf));
+       return peer_send_data(config->cluster_master_address, psave, size + (3 * sizeof(uint32_t)));
+}
+
+// Forward PPPOE packet to the master.
+//(note: THIS ROUTINE WRITES TO pack[-4]).
+int master_forward_pppoe_packet(uint8_t *data, int size, uint8_t codepad)
+{
+       uint8_t *p = data - (2 * sizeof(uint32_t));
+       uint8_t *psave = p;
+
+       if (!config->cluster_master_address) // No election has been held yet. Just skip it.
+               return -1;
+
+       LOG(4, 0, 0, "Forward PPPOE packet to master, code %s (size %d)\n", get_string_codepad(codepad), size);
+
+       STAT(c_forwarded);
+       add_type(&p, C_PPPOE_FORWARD, codepad, NULL, 0);
+
+       return peer_send_data(config->cluster_master_address, psave, size + (2 * sizeof(uint32_t)));
+}
+
+// Forward a DAE RADIUS packet to the master.
+int master_forward_dae_packet(uint8_t *data, int size, in_addr_t addr, int port)
+{
+       return _forward_packet(data, size, addr, port, C_FORWARD_DAE);

 }
 
 //
 }
 
 //


@@ -301,10 +353,10 @@ int master_forward_packet(char *data, int size, in_addr_t addr, int port)
 // token bucket queue, and lets normal processing take care
 // of it.
 //
 // token bucket queue, and lets normal processing take care
 // of it.
 //

-int master_throttle_packet(int tbfid, char *data, int size)
+int master_throttle_packet(int tbfid, uint8_t *data, int size)

 {
 {

-       char buf[65536];        // Vast overkill.
-       char *p = buf;
+       uint8_t buf[65536];     // Vast overkill.
+       uint8_t *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;


@@ -326,10 +378,10 @@ int master_throttle_packet(int tbfid, char *data, int size)
 //
 // (Note that this must be called with the tun header
 // as the start of the data).
 //
 // (Note that this must be called with the tun header
 // as the start of the data).

-int master_garden_packet(sessionidt s, char *data, int size)
+int master_garden_packet(sessionidt s, uint8_t *data, int size)

 {
 {

-       char buf[65536];        // Vast overkill.
-       char *p = buf;
+       uint8_t buf[65536];     // Vast overkill.
+       uint8_t *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;


@@ -342,11 +394,33 @@ int master_garden_packet(sessionidt s, char *data, int size)
 
 }
 
 
 }
 

+//
+// Forward a MPPP packet to the master for handling.
+//
+// (Note that this must be called with the tun header
+// as the start of the data).
+// (i.e. this routine writes to data[-8]).
+int master_forward_mppp_packet(sessionidt s, uint8_t *data, int size)
+{
+       uint8_t *p = data - (2 * sizeof(uint32_t));
+       uint8_t *psave = p;
+
+       if (!config->cluster_master_address) // No election has been held yet. Just skip it.
+               return -1;
+
+       LOG(4, 0, 0, "Forward MPPP packet to master (size %d)\n", size);
+
+       add_type(&p, C_MPPP_FORWARD, s, NULL, 0);
+
+       return peer_send_data(config->cluster_master_address, psave, size + (2 * sizeof(uint32_t)));
+
+}
+

 //
 // Send a chunk of data as a heartbeat..
 // We save it in the history buffer as we do so.
 //
 //
 // Send a chunk of data as a heartbeat..
 // We save it in the history buffer as we do so.
 //

-static void send_heartbeat(int seq, char *data, int size)
+static void send_heartbeat(int seq, uint8_t *data, int size)

 {
        int i;
 
 {
        int i;
 


@@ -368,8 +442,8 @@ static void send_heartbeat(int seq, char *data, int size)
 //
 void cluster_send_ping(time_t basetime)
 {
 //
 void cluster_send_ping(time_t basetime)
 {

-       char buff[100 + sizeof(pingt)];
-       char *p = buff;
+       uint8_t buff[100 + sizeof(pingt)];
+       uint8_t *p = buff;

        pingt x;
 
        if (config->cluster_iam_master && basetime)             // We're heartbeating so no need to ping.
        pingt x;
 
        if (config->cluster_iam_master && basetime)             // We're heartbeating so no need to ping.


@@ -379,10 +453,10 @@ void cluster_send_ping(time_t basetime)
 
        x.ver = 1;
        x.addr = config->bind_address;
 
        x.ver = 1;
        x.addr = config->bind_address;

-       x.undef = config->cluster_undefined_sessions + config->cluster_undefined_tunnels;
+       x.undef = config->cluster_undefined_sessions + config->cluster_undefined_tunnels + config->cluster_undefined_bundles;

        x.basetime = basetime;
 
        x.basetime = basetime;
 

-       add_type(&p, C_PING, basetime, (char *) &x, sizeof(x));
+       add_type(&p, C_PING, basetime, (uint8_t *) &x, sizeof(x));

        cluster_send_data(buff, (p-buff) );
 }
 
        cluster_send_data(buff, (p-buff) );
 }
 


@@ -405,12 +479,6 @@ void master_update_counts(void)
        if (!config->cluster_master_address)    // If we don't have a master, skip it for a while.
                return;
 
        if (!config->cluster_master_address)    // If we don't have a master, skip it for a while.
                return;
 

-       // C_BYTES format changed in 2.1.0 (cluster version 5)
-       // during upgrade from previous versions, hang onto our counters
-       // for a bit until the new master comes up
-       if (config->cluster_last_hb_ver < 5)
-               return;
-

        i = MAX_B_RECS * 5; // Examine max 3000 sessions;
        if (config->cluster_highest_sessionid > i)
                i = config->cluster_highest_sessionid;
        i = MAX_B_RECS * 5; // Examine max 3000 sessions;
        if (config->cluster_highest_sessionid > i)
                i = config->cluster_highest_sessionid;


@@ -444,7 +512,7 @@ void master_update_counts(void)
 
                        // Forward the data to the master.
        LOG(4, 0, 0, "Sending byte counters to master (%d elements)\n", c);
 
                        // Forward the data to the master.
        LOG(4, 0, 0, "Sending byte counters to master (%d elements)\n", c);

-       peer_send_message(config->cluster_master_address, C_BYTES, c, (char *) &b, sizeof(b[0]) * c);
+       peer_send_message(config->cluster_master_address, C_BYTES, c, (uint8_t *) &b, sizeof(b[0]) * c);

        return;
 }
 
        return;
 }
 


@@ -499,7 +567,7 @@ void cluster_check_slaves(void)
 //
 void cluster_check_master(void)
 {
 //
 void cluster_check_master(void)
 {

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

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


@@ -533,6 +601,7 @@ void cluster_check_master(void)
                return; // Everything's ok!
 
        config->cluster_last_hb = TIME + 1;     // Just the one election thanks.
                return; // Everything's ok!
 
        config->cluster_last_hb = TIME + 1;     // Just the one election thanks.

+       config->cluster_master_address = 0;

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


@@ -568,7 +637,7 @@ void cluster_check_master(void)
                // to become a master!!!
 
        config->cluster_iam_master = 1;
                // to become a master!!!
 
        config->cluster_iam_master = 1;

-       config->cluster_master_address = 0;
+       pppoe_send_garp(); // gratuitous arp of the pppoe interface

 
        LOG(0, 0, 0, "I am declaring myself the master!\n");
 
 
        LOG(0, 0, 0, "I am declaring myself the master!\n");
 


@@ -585,7 +654,7 @@ void cluster_check_master(void)
                // Count the highest used tunnel number as well.
                //
        config->cluster_highest_tunnelid = 0;
                // Count the highest used tunnel number as well.
                //
        config->cluster_highest_tunnelid = 0;

-       for (i = 0, tcount = 0; i < MAXTUNNEL; ++i) {
+       for (i = 0; i < MAXTUNNEL; ++i) {

                if (tunnel[i].state == TUNNELUNDEF)
                        tunnel[i].state = TUNNELFREE;
 
                if (tunnel[i].state == TUNNELUNDEF)
                        tunnel[i].state = TUNNELFREE;
 


@@ -593,6 +662,19 @@ void cluster_check_master(void)
                        config->cluster_highest_tunnelid = i;
        }
 
                        config->cluster_highest_tunnelid = i;
        }
 

+               //
+                // Go through and mark all the bundles as defined.
+                // Count the highest used bundle number as well.
+                //
+        config->cluster_highest_bundleid = 0;
+        for (i = 0; i < MAXBUNDLE; ++i) {
+                if (bundle[i].state == BUNDLEUNDEF)
+                        bundle[i].state = BUNDLEFREE;
+
+                if (bundle[i].state != BUNDLEFREE && i > config->cluster_highest_bundleid)
+                        config->cluster_highest_bundleid = i;
+        }
+

                //
                // Go through and mark all the sessions as being defined.
                // reset the idle timeouts.
                //
                // Go through and mark all the sessions as being defined.
                // reset the idle timeouts.


@@ -618,7 +700,7 @@ void cluster_check_master(void)
                }
 
                        // Reset idle timeouts..
                }
 
                        // Reset idle timeouts..

-               session[i].last_packet = time_now;
+               session[i].last_packet = session[i].last_data = time_now;

 
                        // Reset die relative to our uptime rather than the old master's
                if (session[i].die) session[i].die = TIME;
 
                        // Reset die relative to our uptime rather than the old master's
                if (session[i].die) session[i].die = TIME;


@@ -654,10 +736,11 @@ void cluster_check_master(void)
        rebuild_address_pool();
 
                // If we're not the very first master, this is a big issue!
        rebuild_address_pool();
 
                // If we're not the very first master, this is a big issue!

-       if(count>0)
+       if (count > 0)

                LOG(0, 0, 0, "Warning: Fixed %d uninitialized sessions in becoming master!\n", count);
 
        config->cluster_undefined_sessions = 0;
                LOG(0, 0, 0, "Warning: Fixed %d uninitialized sessions in becoming master!\n", count);
 
        config->cluster_undefined_sessions = 0;

+       config->cluster_undefined_bundles = 0;

        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
 


@@ -675,7 +758,7 @@ void cluster_check_master(void)
 // we fix it up here, and we ensure that the 'first free session'
 // pointer is valid.
 //
 // we fix it up here, and we ensure that the 'first free session'
 // pointer is valid.
 //

-static void cluster_check_sessions(int highsession, int freesession_ptr, int hightunnel)
+static void cluster_check_sessions(int highsession, int freesession_ptr, int highbundle, int hightunnel)

 {
        int i;
 
 {
        int i;
 


@@ -684,7 +767,7 @@ static void cluster_check_sessions(int highsession, int freesession_ptr, int hig
        if (config->cluster_iam_uptodate)
                return;
 
        if (config->cluster_iam_uptodate)
                return;
 

-       if (highsession > config->cluster_undefined_sessions && hightunnel > config->cluster_undefined_tunnels)
+       if (highsession > config->cluster_undefined_sessions && highbundle > config->cluster_undefined_bundles && hightunnel > config->cluster_undefined_tunnels)

                return;
 
                // Clear out defined sessions, counting the number of
                return;
 
                // Clear out defined sessions, counting the number of


@@ -700,6 +783,19 @@ static void cluster_check_sessions(int highsession, int freesession_ptr, int hig
                        ++config->cluster_undefined_sessions;
        }
 
                        ++config->cluster_undefined_sessions;
        }
 

+               // Clear out defined bundles, counting the number of
+               // undefs remaining.
+       config->cluster_undefined_bundles = 0;
+       for (i = 1 ; i < MAXBUNDLE; ++i) {
+               if (i > highbundle) {
+                       if (bundle[i].state == BUNDLEUNDEF) bundle[i].state = BUNDLEFREE; // Defined.
+                       continue;
+               }
+
+               if (bundle[i].state == BUNDLEUNDEF)
+                       ++config->cluster_undefined_bundles;
+       }
+

                // Clear out defined tunnels, counting the number of
                // undefs remaining.
        config->cluster_undefined_tunnels = 0;
                // Clear out defined tunnels, counting the number of
                // undefs remaining.
        config->cluster_undefined_tunnels = 0;


@@ -714,9 +810,9 @@ static void cluster_check_sessions(int highsession, int freesession_ptr, int hig
        }
 
 
        }
 
 

-       if (config->cluster_undefined_sessions || config->cluster_undefined_tunnels) {
-               LOG(2, 0, 0, "Cleared undefined sessions/tunnels. %d sess (high %d), %d tunn (high %d)\n",
-                       config->cluster_undefined_sessions, highsession, config->cluster_undefined_tunnels, hightunnel);
+       if (config->cluster_undefined_sessions || config->cluster_undefined_tunnels || config->cluster_undefined_bundles) {
+               LOG(2, 0, 0, "Cleared undefined sessions/bundles/tunnels. %d sess (high %d), %d bund (high %d), %d tunn (high %d)\n",
+                       config->cluster_undefined_sessions, highsession, config->cluster_undefined_bundles, highbundle, config->cluster_undefined_tunnels, hightunnel);

                return;
        }
 
                return;
        }
 


@@ -726,7 +822,7 @@ static void cluster_check_sessions(int highsession, int freesession_ptr, int hig
                cluster_uptodate();
 }
 
                cluster_uptodate();
 }
 

-static int hb_add_type(char **p, int type, int id)
+static int hb_add_type(uint8_t **p, int type, int id)

 {
        switch (type) {
                case C_CSESSION: { // Compressed C_SESSION.
 {
        switch (type) {
                case C_CSESSION: { // Compressed C_SESSION.


@@ -740,13 +836,34 @@ static int hb_add_type(char **p, int type, int id)
                                // Did we compress the full structure, and is the size actually
                                // reduced??
                        if ( (d - orig) == sizeof(sessiont) && size < sizeof(sessiont) ) {
                                // Did we compress the full structure, and is the size actually
                                // reduced??
                        if ( (d - orig) == sizeof(sessiont) && size < sizeof(sessiont) ) {

-                               add_type(p, C_CSESSION, id, (char *) c, size);
+                               add_type(p, C_CSESSION, id, c, size);

                                break;
                        }
                        // Failed to compress : Fall through.
                }
                                break;
                        }
                        // Failed to compress : Fall through.
                }

-               case C_SESSION: add_type(p, C_SESSION, id,
-                       (char *) &session[id], sizeof(sessiont));
+               case C_SESSION:
+                       add_type(p, C_SESSION, id, (uint8_t *) &session[id], sizeof(sessiont));
+                       break;
+
+               case C_CBUNDLE: { // Compressed C_BUNDLE
+                        uint8_t c[sizeof(bundlet) * 2]; // Bigger than worst case.
+                        uint8_t *d = (uint8_t *) &bundle[id];
+                        uint8_t *orig = d;
+                        int size;
+
+                        size = rle_compress( &d,  sizeof(bundlet), c, sizeof(c) );
+
+                                // Did we compress the full structure, and is the size actually
+                                // reduced??
+                        if ( (d - orig) == sizeof(bundlet) && size < sizeof(bundlet) ) {
+                                add_type(p, C_CBUNDLE, id, c, size);
+                                break;
+                        }
+                        // Failed to compress : Fall through.
+                }
+
+               case C_BUNDLE:
+                       add_type(p, C_BUNDLE, id, (uint8_t *) &bundle[id], sizeof(bundlet));

                        break;
 
                case C_CTUNNEL: { // Compressed C_TUNNEL
                        break;
 
                case C_CTUNNEL: { // Compressed C_TUNNEL


@@ -765,8 +882,8 @@ static int hb_add_type(char **p, int type, int id)
                        }
                        // Failed to compress : Fall through.
                }
                        }
                        // Failed to compress : Fall through.
                }

-               case C_TUNNEL: add_type(p, C_TUNNEL, id,
-                       (char *) &tunnel[id], sizeof(tunnelt));
+               case C_TUNNEL:
+                       add_type(p, C_TUNNEL, id, (uint8_t *) &tunnel[id], sizeof(tunnelt));

                        break;
                default:
                        LOG(0, 0, 0, "Found an invalid type in heart queue! (%d)\n", type);
                        break;
                default:
                        LOG(0, 0, 0, "Found an invalid type in heart queue! (%d)\n", type);


@@ -781,10 +898,10 @@ static int hb_add_type(char **p, int type, int id)
 //
 void cluster_heartbeat()
 {
 //
 void cluster_heartbeat()
 {

-       int i, count = 0, tcount = 0;
-       char buff[MAX_HEART_SIZE + sizeof(heartt) + sizeof(int) ];
+       int i, count = 0, tcount = 0, bcount = 0;
+       uint8_t buff[MAX_HEART_SIZE + sizeof(heartt) + sizeof(int) ];

        heartt h;
        heartt h;

-       char *p = buff;
+       uint8_t *p = buff;

 
        if (!config->cluster_iam_master)        // Only the master does this.
                return;
 
        if (!config->cluster_iam_master)        // Only the master does this.
                return;


@@ -802,13 +919,15 @@ void cluster_heartbeat()
        h.highsession = config->cluster_highest_sessionid;
        h.freesession = sessionfree;
        h.hightunnel = config->cluster_highest_tunnelid;
        h.highsession = config->cluster_highest_sessionid;
        h.freesession = sessionfree;
        h.hightunnel = config->cluster_highest_tunnelid;

+       h.highbundle = config->cluster_highest_bundleid;

        h.size_sess = sizeof(sessiont);         // Just in case.
        h.size_sess = sizeof(sessiont);         // Just in case.

+       h.size_bund = sizeof(bundlet);

        h.size_tunn = sizeof(tunnelt);
        h.interval = config->cluster_hb_interval;
        h.timeout  = config->cluster_hb_timeout;
        h.table_version = config->cluster_table_version;
 
        h.size_tunn = sizeof(tunnelt);
        h.interval = config->cluster_hb_interval;
        h.timeout  = config->cluster_hb_timeout;
        h.table_version = config->cluster_table_version;
 

-       add_type(&p, C_HEARTBEAT, HB_VERSION, (char *) &h, sizeof(h));
+       add_type(&p, C_HEARTBEAT, HB_VERSION, (uint8_t *) &h, sizeof(h));

 
        for (i = 0; i < config->cluster_num_changes; ++i) {
                hb_add_type(&p, cluster_changes[i].type, cluster_changes[i].id);
 
        for (i = 0; i < config->cluster_num_changes; ++i) {
                hb_add_type(&p, cluster_changes[i].type, cluster_changes[i].id);


@@ -857,6 +976,21 @@ void cluster_heartbeat()
                ++tcount;
        }
 
                ++tcount;
        }
 

+               //
+               // Fill out the packet with bundles from the bundle table...
+       while ( (p + sizeof(uint32_t) * 2 + sizeof(bundlet) ) < (buff + MAX_HEART_SIZE) ) {
+
+               if (!walk_bundle_number)        // bundle #0 isn't valid.
+                       ++walk_bundle_number;
+
+               if (bcount >= config->cluster_highest_bundleid)
+                       break;
+
+               hb_add_type(&p, C_CBUNDLE, walk_bundle_number);
+               walk_bundle_number = (1+walk_bundle_number)%(config->cluster_highest_bundleid+1);       // +1 avoids divide by zero.
+               ++bcount;
+        }
+

                //
                // Did we do something wrong?
        if (p > (buff + sizeof(buff))) {        // Did we somehow manage to overun the buffer?
                //
                // Did we do something wrong?
        if (p > (buff + sizeof(buff))) {        // Did we somehow manage to overun the buffer?


@@ -865,10 +999,10 @@ void cluster_heartbeat()
                exit(1);
        }
 
                exit(1);
        }
 

-       LOG(3, 0, 0, "Sending v%d heartbeat #%d, change #%" PRIu64 " with %d changes "
-                    "(%d x-sess, %d x-tunnels, %d highsess, %d hightun, size %d)\n",
+       LOG(4, 0, 0, "Sending v%d heartbeat #%d, change #%" PRIu64 " with %d changes "
+                    "(%d x-sess, %d x-bundles, %d x-tunnels, %d highsess, %d highbund, %d hightun, size %d)\n",

            HB_VERSION, h.seq, h.table_version, config->cluster_num_changes,
            HB_VERSION, h.seq, h.table_version, config->cluster_num_changes,

-           count, tcount, config->cluster_highest_sessionid,
+           count, bcount, tcount, config->cluster_highest_sessionid, config->cluster_highest_bundleid,

            config->cluster_highest_tunnelid, (int) (p - buff));
 
        config->cluster_num_changes = 0;
            config->cluster_highest_tunnelid, (int) (p - buff));
 
        config->cluster_num_changes = 0;


@@ -886,12 +1020,20 @@ static int type_changed(int type, int id)
        int i;
 
        for (i = 0 ; i < config->cluster_num_changes ; ++i)
        int i;
 
        for (i = 0 ; i < config->cluster_num_changes ; ++i)

-               if ( cluster_changes[i].id == id &&
-                       cluster_changes[i].type == type)
-                       return 0;       // Already marked for change.
+       {
+               if ( cluster_changes[i].id == id && cluster_changes[i].type == type)
+               {
+                       // Already marked for change, remove it
+                       --config->cluster_num_changes;
+                       memmove(&cluster_changes[i],
+                                       &cluster_changes[i+1],
+                                       (config->cluster_num_changes - i) * sizeof(cluster_changes[i]));
+                       break;
+               }
+       }

 
 

-       cluster_changes[i].type = type;
-       cluster_changes[i].id = id;
+       cluster_changes[config->cluster_num_changes].type = type;
+       cluster_changes[config->cluster_num_changes].id = id;

        ++config->cluster_num_changes;
 
        if (config->cluster_num_changes > MAX_CHANGES)
        ++config->cluster_num_changes;
 
        if (config->cluster_num_changes > MAX_CHANGES)


@@ -900,7 +1042,6 @@ static int type_changed(int type, int id)
        return 1;
 }
 
        return 1;
 }
 

-

 // A particular session has been changed!
 int cluster_send_session(int sid)
 {
 // A particular session has been changed!
 int cluster_send_session(int sid)
 {


@@ -917,6 +1058,17 @@ int cluster_send_session(int sid)
        return type_changed(C_CSESSION, sid);
 }
 
        return type_changed(C_CSESSION, sid);
 }
 

+// A particular bundle has been changed!
+int cluster_send_bundle(int bid)
+{
+       if (!config->cluster_iam_master) {
+               LOG(0, 0, bid, "I'm not a master, but I just tried to change a bundle!\n");
+               return -1;
+       }
+
+       return type_changed(C_CBUNDLE, bid);
+}
+

 // A particular tunnel has been changed!
 int cluster_send_tunnel(int tid)
 {
 // A particular tunnel has been changed!
 int cluster_send_tunnel(int tid)
 {


@@ -1022,7 +1174,6 @@ static int cluster_add_peer(in_addr_t peer, time_t basetime, pingt *pp, int size
                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();

-               return 0;

        }
 
        if (i >= num_peers)
        }
 
        if (i >= num_peers)


@@ -1069,6 +1220,16 @@ static int cluster_set_master(in_addr_t peer, in_addr_t master)
                fmtaddr(master, 1));
 
        config->cluster_master_address = master;
                fmtaddr(master, 1));
 
        config->cluster_master_address = master;

+       if (master)
+       {
+               // catchup with new master
+               peer_send_message(master, C_LASTSEEN, config->cluster_seq_number, NULL, 0);
+
+               // delay next election
+               config->cluster_last_hb = TIME;
+       }
+
+       // run election (or reset "probed" if master was set)

        cluster_check_master();
        return 0;
 }
        cluster_check_master();
        return 0;
 }


@@ -1078,7 +1239,7 @@ static int cluster_set_master(in_addr_t peer, in_addr_t master)
 // Note that we don't mark the session as dirty; We rely on
 // the slow table walk to propogate this back out to the slaves.
 //
 // Note that we don't mark the session as dirty; We rely on
 // the slow table walk to propogate this back out to the slaves.
 //

-static int cluster_handle_bytes(char *data, int size)
+static int cluster_handle_bytes(uint8_t *data, int size)

 {
        bytest *b;
 
 {
        bytest *b;
 


@@ -1105,7 +1266,9 @@ static int cluster_handle_bytes(char *data, int size)
                session[b->sid].cout_delta += b->cout;
 
                if (b->cin)
                session[b->sid].cout_delta += b->cout;
 
                if (b->cin)

-                       session[b->sid].last_packet = time_now; // Reset idle timer!
+                       session[b->sid].last_packet = session[b->sid].last_data = time_now;
+               else if (b->cout)
+                       session[b->sid].last_data = time_now;

 
                size -= sizeof(*b);
                ++b;
 
                size -= sizeof(*b);
                ++b;


@@ -1145,6 +1308,31 @@ static int cluster_recv_session(int more, uint8_t *p)
        return 0;
 }
 
        return 0;
 }
 

+static int cluster_recv_bundle(int more, uint8_t *p)
+{
+       if (more >= MAXBUNDLE) {
+               LOG(0, 0, 0, "DANGER: Received a bundle id > MAXBUNDLE!\n");
+               return -1;
+       }
+
+       if (bundle[more].state == BUNDLEUNDEF) {
+               if (config->cluster_iam_uptodate) { // Sanity.
+                       LOG(0, 0, 0, "I thought I was uptodate but I just found an undefined bundle!\n");
+               } else {
+                       --config->cluster_undefined_bundles;
+               }
+       }
+
+       memcpy(&bundle[more], p, sizeof(bundle[more]) );
+
+       LOG(5, 0, more, "Received bundle update\n");
+
+       if (!config->cluster_iam_uptodate)
+               cluster_uptodate();     // Check to see if we're up to date.
+
+        return 0;
+}
+

 static int cluster_recv_tunnel(int more, uint8_t *p)
 {
        if (more >= MAXTUNNEL) {
 static int cluster_recv_tunnel(int more, uint8_t *p)
 {
        if (more >= MAXTUNNEL) {


@@ -1178,51 +1366,62 @@ static int cluster_recv_tunnel(int more, uint8_t *p)
 }
 
 
 }
 
 

-// pre v5 heartbeat session structure
+// pre v6 heartbeat session structure

 struct oldsession {
        sessionidt next;
        sessionidt far;
        tunnelidt tunnel;
 struct oldsession {
        sessionidt next;
        sessionidt far;
        tunnelidt tunnel;

+       uint8_t flags;
+       struct {
+               uint8_t phase;
+               uint8_t lcp:4;
+               uint8_t ipcp:4;
+               uint8_t ipv6cp:4;
+               uint8_t ccp:4;
+       } ppp;
+       char reserved_1[2];

        in_addr_t ip;
        int ip_pool_index;
        in_addr_t ip;
        int ip_pool_index;

-       unsigned long unique_id;
-       uint16_t nr;
-       uint16_t ns;
+       uint32_t unique_id;
+       char reserved_2[4];

        uint32_t magic;
        uint32_t magic;

-       uint32_t cin, cout;

        uint32_t pin, pout;
        uint32_t pin, pout;

-       uint32_t total_cin;
-       uint32_t total_cout;
-       uint32_t id;
+       uint32_t cin, cout;
+       uint32_t cin_wrap, cout_wrap;
+       uint32_t cin_delta, cout_delta;

        uint16_t throttle_in;
        uint16_t throttle_out;
        uint16_t throttle_in;
        uint16_t throttle_out;

+       uint8_t filter_in;
+       uint8_t filter_out;
+       uint16_t mru;

        clockt opened;
        clockt die;
        clockt opened;
        clockt die;

+       uint32_t session_timeout;
+       uint32_t idle_timeout;

        time_t last_packet;
        time_t last_packet;

+       time_t last_data;

        in_addr_t dns1, dns2;
        routet route[MAXROUTE];
        in_addr_t dns1, dns2;
        routet route[MAXROUTE];

-       uint16_t radius;
-       uint16_t mru;

        uint16_t tbf_in;
        uint16_t tbf_out;
        uint16_t tbf_in;
        uint16_t tbf_out;

-       uint8_t l2tp_flags;
-       uint8_t reserved_old_snoop;
-       uint8_t walled_garden;
-       uint8_t flags1;
-       char random_vector[MAXTEL];

        int random_vector_length;
        int random_vector_length;

-       char user[129];
+       uint8_t random_vector[MAXTEL];
+       char user[MAXUSER];

        char called[MAXTEL];
        char calling[MAXTEL];
        uint32_t tx_connect_speed;
        uint32_t rx_connect_speed;
        char called[MAXTEL];
        char calling[MAXTEL];
        uint32_t tx_connect_speed;
        uint32_t rx_connect_speed;

-       uint32_t flags;
+       clockt timeout;
+       uint32_t mrru;
+       uint8_t mssf;
+       epdist epdis;
+       bundleidt bundle;

        in_addr_t snoop_ip;
        uint16_t snoop_port;
        in_addr_t snoop_ip;
        uint16_t snoop_port;

-       uint16_t sid;
-       uint8_t filter_in;
-       uint8_t filter_out;
-       char reserved[18];
+       uint8_t walled_garden;
+       uint8_t ipv6prefixlen;
+       struct in6_addr ipv6route;
+       char reserved_3[11];

 };
 
 static uint8_t *convert_session(struct oldsession *old)
 };
 
 static uint8_t *convert_session(struct oldsession *old)


@@ -1235,20 +1434,24 @@ static uint8_t *convert_session(struct oldsession *old)
        new.next = old->next;
        new.far = old->far;
        new.tunnel = old->tunnel;
        new.next = old->next;
        new.far = old->far;
        new.tunnel = old->tunnel;

-       new.l2tp_flags = old->l2tp_flags;

        new.flags = old->flags;
        new.flags = old->flags;

+       new.ppp.phase = old->ppp.phase;
+       new.ppp.lcp = old->ppp.lcp;
+       new.ppp.ipcp = old->ppp.ipcp;
+       new.ppp.ipv6cp = old->ppp.ipv6cp;
+       new.ppp.ccp = old->ppp.ccp;

        new.ip = old->ip;
        new.ip_pool_index = old->ip_pool_index;
        new.unique_id = old->unique_id;
        new.ip = old->ip;
        new.ip_pool_index = old->ip_pool_index;
        new.unique_id = old->unique_id;

-       new.nr = old->nr;
-       new.ns = old->ns;

        new.magic = old->magic;
        new.pin = old->pin;
        new.pout = old->pout;
        new.magic = old->magic;
        new.pin = old->pin;
        new.pout = old->pout;

-       new.cin = old->total_cin;
-       new.cout = old->total_cout;
-       new.cin_delta = old->cin;
-       new.cout_delta = old->cout;
+       new.cin = old->cin;
+       new.cout = old->cout;
+       new.cin_wrap = old->cin_wrap;
+       new.cout_wrap = old->cout_wrap;
+       new.cin_delta = old->cin_delta;
+       new.cout_delta = old->cout_delta;

        new.throttle_in = old->throttle_in;
        new.throttle_out = old->throttle_out;
        new.filter_in = old->filter_in;
        new.throttle_in = old->throttle_in;
        new.throttle_out = old->throttle_out;
        new.filter_in = old->filter_in;


@@ -1256,7 +1459,10 @@ static uint8_t *convert_session(struct oldsession *old)
        new.mru = old->mru;
        new.opened = old->opened;
        new.die = old->die;
        new.mru = old->mru;
        new.opened = old->opened;
        new.die = old->die;

+       new.session_timeout = old->session_timeout;
+       new.idle_timeout = old->idle_timeout;

        new.last_packet = old->last_packet;
        new.last_packet = old->last_packet;

+       new.last_data = old->last_data;

        new.dns1 = old->dns1;
        new.dns2 = old->dns2;
        new.tbf_in = old->tbf_in;
        new.dns1 = old->dns1;
        new.dns2 = old->dns2;
        new.tbf_in = old->tbf_in;


@@ -1264,9 +1470,16 @@ static uint8_t *convert_session(struct oldsession *old)
        new.random_vector_length = old->random_vector_length;
        new.tx_connect_speed = old->tx_connect_speed;
        new.rx_connect_speed = old->rx_connect_speed;
        new.random_vector_length = old->random_vector_length;
        new.tx_connect_speed = old->tx_connect_speed;
        new.rx_connect_speed = old->rx_connect_speed;

+       new.timeout = old->timeout;
+       new.mrru = old->mrru;
+       new.mssf = old->mssf;
+       new.epdis = old->epdis;
+       new.bundle = old->bundle;

        new.snoop_ip = old->snoop_ip;
        new.snoop_port = old->snoop_port;
        new.walled_garden = old->walled_garden;
        new.snoop_ip = old->snoop_ip;
        new.snoop_port = old->snoop_port;
        new.walled_garden = old->walled_garden;

+       new.ipv6prefixlen = old->ipv6prefixlen;
+       new.ipv6route = old->ipv6route;

 
        memcpy(new.random_vector, old->random_vector, sizeof(new.random_vector));
        memcpy(new.user, old->user, sizeof(new.user));
 
        memcpy(new.random_vector, old->random_vector, sizeof(new.random_vector));
        memcpy(new.user, old->user, sizeof(new.user));


@@ -1282,9 +1495,8 @@ static uint8_t *convert_session(struct oldsession *old)
 //
 // Process a heartbeat..
 //
 //
 // Process a heartbeat..
 //

-// v3: added interval, timeout
-// v4: added table_version
-// v5: added ipv6, re-ordered session structure
+// v6: added RADIUS class attribute, re-ordered session structure
+// v7: added tunnelt attribute at the end of struct (tunnelt size change)

 static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t *p, in_addr_t addr)
 {
        heartt *h;
 static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t *p, in_addr_t addr)
 {
        heartt *h;


@@ -1292,17 +1504,21 @@ static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t
        int i, type;
        int hb_ver = more;
 
        int i, type;
        int hb_ver = more;
 

-#if HB_VERSION != 5
+#if HB_VERSION != 7

 # error "need to update cluster_process_heartbeat()"
 #endif
 
 # error "need to update cluster_process_heartbeat()"
 #endif
 

-       // we handle versions 3 through 5
-       if (hb_ver < 3 || hb_ver > HB_VERSION) {
+       // we handle versions 5 through 7
+       if (hb_ver < 5 || hb_ver > HB_VERSION) {

                LOG(0, 0, 0, "Received a heartbeat version that I don't support (%d)!\n", hb_ver);
                return -1; // Ignore it??
        }
 
                LOG(0, 0, 0, "Received a heartbeat version that I don't support (%d)!\n", hb_ver);
                return -1; // Ignore it??
        }
 

-               // Ok. It's a heartbeat packet from a cluster master!
+       if (size > sizeof(past_hearts[0].data)) {
+               LOG(0, 0, 0, "Received an oversize heartbeat from %s (%d)!\n", fmtaddr(addr, 0), size);
+               return -1;
+       }
+

        if (s < sizeof(*h))
                goto shortpacket;
 
        if (s < sizeof(*h))
                goto shortpacket;
 


@@ -1322,18 +1538,17 @@ static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t
                        return -1; // Skip it.
                }
 
                        return -1; // Skip it.
                }
 

-               if (hb_ver >= 4) {
-                       if (h->table_version > config->cluster_table_version) {
-                               LOG(0, 0, 0, "They've seen more state changes (%" PRIu64 " vs my %" PRIu64 ") so I'm gone!\n",
+               if (h->table_version > config->cluster_table_version) {
+                       LOG(0, 0, 0, "They've seen more state changes (%" PRIu64 " vs my %" PRIu64 ") so I'm gone!\n",

                                        h->table_version, config->cluster_table_version);
 
                                        h->table_version, config->cluster_table_version);
 

-                               kill(0, SIGTERM);
-                               exit(1);
-                       }
-                       if (h->table_version < config->cluster_table_version)
-                               return -1;
+                       kill(0, SIGTERM);
+                       exit(1);

                }
 
                }
 

+               if (h->table_version < config->cluster_table_version)
+                       return -1;
+

                if (basetime > h->basetime) {
                        LOG(0, 0, 0, "They're an older master than me so I'm gone!\n");
                        kill(0, SIGTERM);
                if (basetime > h->basetime) {
                        LOG(0, 0, 0, "They're an older master than me so I'm gone!\n");
                        kill(0, SIGTERM);


@@ -1368,8 +1583,7 @@ static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t
                // Note that after a clean failover, the cluster_master_address
                // is cleared, so this doesn't run. 
                //
                // Note that after a clean failover, the cluster_master_address
                // is cleared, so this doesn't run. 
                //

-       if (config->cluster_master_address && addr != config->cluster_master_address
-           && (config->cluster_last_hb + config->cluster_hb_timeout - 11) > TIME) {
+       if (config->cluster_master_address && addr != config->cluster_master_address) {

                    LOG(0, 0, 0, "Ignoring stray heartbeat from %s, current master %s has not yet timed out (last heartbeat %.1f seconds ago).\n",
                            fmtaddr(addr, 0), fmtaddr(config->cluster_master_address, 1),
                            0.1 * (TIME - config->cluster_last_hb));
                    LOG(0, 0, 0, "Ignoring stray heartbeat from %s, current master %s has not yet timed out (last heartbeat %.1f seconds ago).\n",
                            fmtaddr(addr, 0), fmtaddr(config->cluster_master_address, 1),
                            0.1 * (TIME - config->cluster_last_hb));


@@ -1417,7 +1631,7 @@ static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t
 
                        // Check that we don't have too many undefined sessions, and
                        // that the free session pointer is correct.
 
                        // Check that we don't have too many undefined sessions, and
                        // that the free session pointer is correct.

-       cluster_check_sessions(h->highsession, h->freesession, h->hightunnel);
+       cluster_check_sessions(h->highsession, h->freesession, h->highbundle, h->hightunnel);

 
        if (h->interval != config->cluster_hb_interval)
        {
 
        if (h->interval != config->cluster_hb_interval)
        {


@@ -1456,7 +1670,7 @@ static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t
                                s -= (p - orig_p);
 
                                // session struct changed with v5
                                s -= (p - orig_p);
 
                                // session struct changed with v5

-                               if (hb_ver < 5)
+                               if (hb_ver < 6)

                                {
                                        if (size != sizeof(struct oldsession)) {
                                                LOG(0, 0, 0, "DANGER: Received a v%d CSESSION that didn't decompress correctly!\n", hb_ver);
                                {
                                        if (size != sizeof(struct oldsession)) {
                                                LOG(0, 0, 0, "DANGER: Received a v%d CSESSION that didn't decompress correctly!\n", hb_ver);


@@ -1477,7 +1691,7 @@ static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t
                                break;
                        }
                        case C_SESSION:
                                break;
                        }
                        case C_SESSION:

-                               if (hb_ver < 5)
+                               if (hb_ver < 6)

                                {
                                        if (s < sizeof(struct oldsession))
                                                goto shortpacket;
                                {
                                        if (s < sizeof(struct oldsession))
                                                goto shortpacket;


@@ -1506,8 +1720,10 @@ static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t
                                size = rle_decompress((uint8_t **) &p, s, c, sizeof(c));
                                s -= (p - orig_p);
 
                                size = rle_decompress((uint8_t **) &p, s, c, sizeof(c));
                                s -= (p - orig_p);
 

-                               if (size != sizeof(tunnelt) ) { // Ouch! Very very bad!
-                                       LOG(0, 0, 0, "DANGER: Received a CSESSION that didn't decompress correctly!\n");
+                               if ( ((hb_ver >= HB_VERSION) && (size != sizeof(tunnelt))) ||
+                                        ((hb_ver < HB_VERSION) && (size > sizeof(tunnelt))) )
+                               { // Ouch! Very very bad!
+                                       LOG(0, 0, 0, "DANGER: Received a CTUNNEL that didn't decompress correctly!\n");

                                                // Now what? Should exit! No-longer up to date!
                                        break;
                                }
                                                // Now what? Should exit! No-longer up to date!
                                        break;
                                }


@@ -1525,6 +1741,34 @@ static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t
                                p += sizeof(tunnel[more]);
                                s -= sizeof(tunnel[more]);
                                break;
                                p += sizeof(tunnel[more]);
                                s -= sizeof(tunnel[more]);
                                break;

+
+                       case C_CBUNDLE: { // Compressed bundle structure.
+                               uint8_t c[ sizeof(bundlet) + 2];
+                               int size;
+                               uint8_t *orig_p = p;
+
+                               size = rle_decompress((uint8_t **) &p, s, c, sizeof(c));
+                               s -= (p - orig_p);
+
+                               if (size != sizeof(bundlet) ) { // Ouch! Very very bad!
+                                       LOG(0, 0, 0, "DANGER: Received a CBUNDLE that didn't decompress correctly!\n");
+                                               // Now what? Should exit! No-longer up to date!
+                                       break;
+                               }
+
+                               cluster_recv_bundle(more, c);
+                               break;
+
+                       }
+                       case C_BUNDLE:
+                               if ( s < sizeof(bundle[more]))
+                                        goto shortpacket;
+
+                                cluster_recv_bundle(more, p);
+
+                                p += sizeof(bundle[more]);
+                                s -= sizeof(bundle[more]);
+                                break;

                        default:
                                LOG(0, 0, 0, "DANGER: I received a heartbeat element where I didn't understand the type! (%d)\n", type);
                                return -1; // can't process any more of the packet!!
                        default:
                                LOG(0, 0, 0, "DANGER: I received a heartbeat element where I didn't understand the type! (%d)\n", type);
                                return -1; // can't process any more of the packet!!


@@ -1552,10 +1796,10 @@ shortpacket:
 // We got a packet on the cluster port!
 // Handle pings, lastseens, and heartbeats!
 //
 // We got a packet on the cluster port!
 // Handle pings, lastseens, and heartbeats!
 //

-int processcluster(char *data, int size, in_addr_t addr)
+int processcluster(uint8_t *data, int size, in_addr_t addr)

 {
        int type, more;
 {
        int type, more;

-       char *p = data;
+       uint8_t *p = data;

        int s = size;
 
        if (addr == my_address)
        int s = size;
 
        if (addr == my_address)


@@ -1577,7 +1821,8 @@ int processcluster(char *data, int size, in_addr_t addr)
        p += sizeof(uint32_t);
        s -= sizeof(uint32_t);
 
        p += sizeof(uint32_t);
        s -= sizeof(uint32_t);
 

-       switch (type) {
+       switch (type)
+       {

        case C_PING: // Update the peers table.
                return cluster_add_peer(addr, more, (pingt *) p, s);
 
        case C_PING: // Update the peers table.
                return cluster_add_peer(addr, more, (pingt *) p, s);
 


@@ -1587,24 +1832,63 @@ int processcluster(char *data, int size, in_addr_t addr)
        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);
 

-       case C_FORWARD: { // Forwarded control packet. pass off to processudp.
-               struct sockaddr_in a;
-               a.sin_addr.s_addr = more;
+       case C_FORWARD: // Forwarded control packet. pass off to processudp.
+       case C_FORWARD_DAE: // Forwarded DAE packet. pass off to processdae.
+               if (!config->cluster_iam_master)
+               {
+                       LOG(0, 0, 0, "I'm not the master, but I got a C_FORWARD%s from %s?\n",
+                               type == C_FORWARD_DAE ? "_DAE" : "", fmtaddr(addr, 0));

 
 

-               a.sin_port = *(int *) p;
-               s -= sizeof(int);
-               p += sizeof(int);
+                       return -1;
+               }
+               else
+               {
+                       struct sockaddr_in a;
+                       uint16_t indexudp;
+                       a.sin_addr.s_addr = more;
+
+                       a.sin_port = (*(int *) p) & 0xFFFF;
+                       indexudp = ((*(int *) p) >> 16) & 0xFFFF;
+                       s -= sizeof(int);
+                       p += sizeof(int);
+
+                       LOG(4, 0, 0, "Got a forwarded %spacket... (%s:%d)\n",
+                               type == C_FORWARD_DAE ? "DAE " : "", fmtaddr(more, 0), a.sin_port);
+
+                       STAT(recv_forward);
+                       if (type == C_FORWARD_DAE)
+                       {
+                               struct in_addr local;
+                               local.s_addr = config->bind_address ? config->bind_address : my_address;
+                               processdae(p, s, &a, sizeof(a), &local);
+                       }
+                       else
+                               processudp(p, s, &a, indexudp);

 
 

-               if (!config->cluster_iam_master) { // huh?
-                       LOG(0, 0, 0, "I'm not the master, but I got a C_FORWARD from %s?\n", fmtaddr(addr, 0));
+                       return 0;
+               }
+       case C_PPPOE_FORWARD:
+               if (!config->cluster_iam_master)
+               {
+                       LOG(0, 0, 0, "I'm not the master, but I got a C_PPPOE_FORWARD from %s?\n", fmtaddr(addr, 0));

                        return -1;
                }
                        return -1;
                }

+               else
+               {
+                       pppoe_process_forward(p, s, addr);
+                       return 0;
+               }

 
 

-               LOG(4, 0, 0, "Got a forwarded packet... (%s:%d)\n", fmtaddr(more, 0), a.sin_port);
-               STAT(recv_forward);
-               processudp(p, s, &a);
+       case C_MPPP_FORWARD:
+               // Receive a MPPP packet from a slave.
+               if (!config->cluster_iam_master) {
+                       LOG(0, 0, 0, "I'm not the master, but I got a C_MPPP_FORWARD from %s?\n", fmtaddr(addr, 0));
+                       return -1;
+               }
+
+               processipout(p, s);

                return 0;
                return 0;

-       }
+

        case C_THROTTLE: {      // Receive a forwarded packet from a slave.
                if (!config->cluster_iam_master) {
                        LOG(0, 0, 0, "I'm not the master, but I got a C_THROTTLE from %s?\n", fmtaddr(addr, 0));
        case C_THROTTLE: {      // Receive a forwarded packet from a slave.
                if (!config->cluster_iam_master) {
                        LOG(0, 0, 0, "I'm not the master, but I got a C_THROTTLE from %s?\n", fmtaddr(addr, 0));


@@ -1693,11 +1977,13 @@ int cmd_show_cluster(struct cli_def *cli, char *command, char **argv, int argc)
                cli_print(cli, "Table version #  : %" PRIu64, config->cluster_table_version);
                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, "Table version #  : %" PRIu64, config->cluster_table_version);
                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 bundles undefined of %d", config->cluster_undefined_bundles, config->cluster_highest_bundleid);

                cli_print(cli, "%d tunnels undefined of %d", config->cluster_undefined_tunnels, config->cluster_highest_tunnelid);
        } else {
                cli_print(cli, "Table version #  : %" PRIu64, config->cluster_table_version);
                cli_print(cli, "Next heartbeat # : %d", config->cluster_seq_number);
                cli_print(cli, "Highest session  : %d", config->cluster_highest_sessionid);
                cli_print(cli, "%d tunnels undefined of %d", config->cluster_undefined_tunnels, config->cluster_highest_tunnelid);
        } else {
                cli_print(cli, "Table version #  : %" PRIu64, config->cluster_table_version);
                cli_print(cli, "Next heartbeat # : %d", config->cluster_seq_number);
                cli_print(cli, "Highest session  : %d", config->cluster_highest_sessionid);

+               cli_print(cli, "Highest bundle   : %d", config->cluster_highest_bundleid);

                cli_print(cli, "Highest tunnel   : %d", config->cluster_highest_tunnelid);
                cli_print(cli, "%d changes queued for sending", config->cluster_num_changes);
        }
                cli_print(cli, "Highest tunnel   : %d", config->cluster_highest_tunnelid);
                cli_print(cli, "%d changes queued for sending", config->cluster_num_changes);
        }


@@ -1781,7 +2067,7 @@ static int rle_decompress(uint8_t **src_p, int ssize, uint8_t *dst, int dsize)
 {
        int count;
        int orig_dsize = dsize;
 {
        int count;
        int orig_dsize = dsize;

-       char *src = *src_p;
+       uint8_t *src = *src_p;

 
        while (ssize >0 && dsize > 0) { // While there's more to decompress, and there's room in the decompress buffer...
                count = *src++; --ssize;  // get the count byte from the source.
 
        while (ssize >0 && dsize > 0) { // While there's more to decompress, and there's room in the decompress buffer...
                count = *src++; --ssize;  // get the count byte from the source.