Add log_backtrace

[l2tpns.git] / cluster_slave.c

diff --git a/cluster_slave.c b/cluster_slave.c
index 71e2eac..1ed03b0 100644 (file)
--- a/cluster_slave.c
+++ b/cluster_slave.c
@@ -1,5 +1,5 @@
 // L2TPNS Cluster Master
 // L2TPNS Cluster Master

-// $Id: cluster_slave.c,v 1.1 2003-12-16 07:07:39 fred_nerk Exp $
+// $Id: cluster_slave.c,v 1.4 2004-05-24 04:12:48 fred_nerk Exp $

 
 #include <stdio.h>
 #include <netinet/in.h>
 
 #include <stdio.h>
 #include <netinet/in.h>


@@ -19,16 +19,13 @@
 #include "ll.h"
 #include "util.h"
 
 #include "ll.h"
 #include "util.h"
 

+// vim: sw=4 ts=8
+

 extern int cluster_sockfd;
 extern int cluster_sockfd;

-extern tunnelt *tunnel;
-extern sessiont *session;
-extern uint32_t cluster_address;

 extern char hostname[1000];
 extern char hostname[1000];

-extern int debug;

 extern ippoolt *ip_address_pool;
 extern uint32_t vip_address;
 extern ippoolt *ip_address_pool;
 extern uint32_t vip_address;

-extern tunnelidt tunnelfree;
-extern sessionidt sessionfree;
+extern struct configt *config;

 
 int handle_tunnel(char *buf, int l);
 int handle_session(char *buf, int l);
 
 int handle_tunnel(char *buf, int l);
 int handle_session(char *buf, int l);


@@ -78,6 +75,13 @@ int handle_tunnel(char *buf, int l)
 {
     int t;
 
 {
     int t;
 

+    // Ignore tunnel message if NOSTATEFILE exists
+    if (config->ignore_cluster_updates)
+    {
+       log(1, 0, 0, 0, "Discarding tunnel message from cluster master.\n");
+       return 0;
+    }
+

     t = *(int *)buf;
     log(1, 0, 0, t, "Receiving tunnel %d from cluster master (%d bytes)\n", t, l);
     buf += sizeof(int); l -= sizeof(int);
     t = *(int *)buf;
     log(1, 0, 0, t, "Receiving tunnel %d from cluster master (%d bytes)\n", t, l);
     buf += sizeof(int); l -= sizeof(int);


@@ -94,16 +98,6 @@ int handle_tunnel(char *buf, int l)
        return 0;
     }
 
        return 0;
     }
 

-    if (t > 1)
-    {
-       tunnel[t-1].next = tunnel[t].next;
-    }
-
-    if (tunnelfree == t)
-    {
-       tunnelfree = tunnel[t].next;
-    }
-

     memcpy(&tunnel[t], buf, l);
     log(3, 0, 0, t, "Cluster master sent tunnel for %s\n", tunnel[t].hostname);
 
     memcpy(&tunnel[t], buf, l);
     log(3, 0, 0, t, "Cluster master sent tunnel for %s\n", tunnel[t].hostname);
 


@@ -117,6 +111,13 @@ int handle_session(char *buf, int l)
 {
     int s;
 
 {
     int s;
 

+    // Ignore tunnel message if NOSTATEFILE exists
+    if (config->ignore_cluster_updates)
+    {
+       log(1, 0, 0, 0, "Discarding session message from cluster master.\n");
+       return 0;
+    }
+

     s = *(int *)buf;
     log(1, 0, s, 0, "Receiving session %d from cluster master (%d bytes)\n", s, l);
     buf += sizeof(int); l -= sizeof(int);
     s = *(int *)buf;
     log(1, 0, s, 0, "Receiving session %d from cluster master (%d bytes)\n", s, l);
     buf += sizeof(int); l -= sizeof(int);


@@ -214,7 +215,7 @@ int cluster_send_session(int s)
        memcpy((char *)(packet + len), &session[s], sizeof(sessiont));
        len += sizeof(sessiont);
 
        memcpy((char *)(packet + len), &session[s], sizeof(sessiont));
        len += sizeof(sessiont);
 

-       cluster_send_message(cluster_address, vip_address, C_SESSION, packet, len);
+       cluster_send_message(config->cluster_address, vip_address, C_SESSION, packet, len);

        free(packet);
 
        return 1;
        free(packet);
 
        return 1;


@@ -241,7 +242,27 @@ int cluster_send_tunnel(int t)
        memcpy((char *)(packet + len), &tunnel[t], sizeof(tunnelt));
        len += sizeof(tunnelt);
 
        memcpy((char *)(packet + len), &tunnel[t], sizeof(tunnelt));
        len += sizeof(tunnelt);
 

-       cluster_send_message(cluster_address, vip_address, C_TUNNEL, packet, len);
+       cluster_send_message(config->cluster_address, vip_address, C_TUNNEL, packet, len);
+       free(packet);
+
+       return 1;
+}
+
+int cluster_send_goodbye()
+{
+       char *packet;
+       int len = 0;
+
+       packet = malloc(4096);
+
+       log(2, 0, 0, 0, "Sending goodbye to cluster master\n");
+       // Hostname
+       len = strlen(hostname);
+       *(char *)packet = len;
+       memcpy((char *)(packet + 1), hostname, len);
+       len++;
+
+       cluster_send_message(config->cluster_address, vip_address, C_GOODBYE, packet, len);

        free(packet);
 
        return 1;
        free(packet);
 
        return 1;