X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/152b5b67a437a2c7b4eb16277dbdcedfaaa43996..709b2b0419595bd99594840118740bb243566dcb:/cluster.c

diff --git a/cluster.c b/cluster.c
index 7b6b33e..b2a244e 100644
--- a/cluster.c
+++ b/cluster.c
@@ -363,6 +363,28 @@ int master_garden_packet(sessionidt s, uint8_t *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.
@@ -945,7 +967,7 @@ void cluster_heartbeat()
 		exit(1);
 	}
 
-	LOG(3, 0, 0, "Sending v%d heartbeat #%d, change #%" PRIu64 " with %d changes "
+	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,
 	    count, bcount, tcount, config->cluster_highest_sessionid, config->cluster_highest_bundleid,
@@ -980,6 +1002,36 @@ static int type_changed(int type, int id)
 	return 1;
 }
 
+// The deleted session, must be before the new session
+int cluster_listinvert_session(int sidnew, int sidtodel)
+{
+	int i, inew = 0;
+
+	for (i = 0 ; i < config->cluster_num_changes ; ++i)
+	{
+		if ( cluster_changes[i].id == sidtodel && cluster_changes[i].type == C_CSESSION)
+			return 0;	// Deleted session already before the new session.
+
+		if ( cluster_changes[i].id == sidnew && cluster_changes[i].type == C_CSESSION)
+		{
+			inew = i;
+			break;
+		}
+	}
+
+	for ( ; i < config->cluster_num_changes ; ++i)
+	{
+		if ( cluster_changes[i].id == sidtodel && cluster_changes[i].type == C_CSESSION)
+		{
+			// Reverse position
+			cluster_changes[i].id = sidnew;
+			cluster_changes[inew].id = sidtodel;
+			return 1;
+		}
+	}
+
+	return 0;
+}
 
 // A particular session has been changed!
 int cluster_send_session(int sid)
@@ -1435,6 +1487,7 @@ static uint8_t *convert_session(struct oldsession *old)
 // Process a heartbeat..
 //
 // 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;
@@ -1442,11 +1495,18 @@ static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t
 	int i, type;
 	int hb_ver = more;
 
+#ifdef LAC
+#if HB_VERSION != 7
+# error "need to update cluster_process_heartbeat()"
+#endif
+#else
 #if HB_VERSION != 6
 # error "need to update cluster_process_heartbeat()"
 #endif
+#endif
+
 
-	// we handle versions 5 through 6
+	// 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??
@@ -1658,7 +1718,13 @@ 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);
 
-				if (size != sizeof(tunnelt) ) { // Ouch! Very very bad!
+#ifdef LAC
+				if ( ((hb_ver >= HB_VERSION) && (size != sizeof(tunnelt))) ||
+					 ((hb_ver < HB_VERSION) && (size > sizeof(tunnelt))) )
+#else
+				if (size != sizeof(tunnelt) )
+#endif
+				{ // 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;
@@ -1802,6 +1868,16 @@ int processcluster(uint8_t *data, int size, in_addr_t addr)
 			return 0;
 		}
 
+	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;
+
 	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));