-/*
- terminate a connection and notify the other
- end before closing the sockets
-*/
-void terminate_connection(connection_t *cl)
-{
- connection_t *p;
- subnet_t *subnet;
- avl_node_t *node, *next;
-cp
- if(cl->status.remove)
- return;
-
- cl->status.remove = 1;
-
- if(debug_lvl >= DEBUG_CONNECTIONS)
- syslog(LOG_NOTICE, _("Closing connection with %s (%s)"),
- cl->name, cl->hostname);
-
- if(cl->socket)
- close(cl->socket);
- if(cl->status.meta)
- close(cl->meta_socket);
-
- /* Find all connections that were lost because they were behind cl
- (the connection that was dropped). */
-
- if(cl->status.meta)
- for(node = connection_tree->head; node; node = node->next)
- {
- p = (connection_t *)node->data;
- if(p->nexthop == cl && p != cl)
- terminate_connection(p);
- }
-
- /* Inform others of termination if it was still active */
-
- if(cl->status.active)
- for(node = connection_tree->head; node; node = node->next)
- {
- p = (connection_t *)node->data;
- if(p->status.meta && p->status.active && p!=cl)
- send_del_host(p, cl); /* Sounds like recursion, but p does not have a meta connection :) */
- }
-
- /* Remove the associated subnets */
-
- for(node = cl->subnet_tree->head; node; node = next)
- {
- next = node->next;
- subnet = (subnet_t *)node->data;
- subnet_del(subnet);
- }
-
- /* Check if this was our outgoing connection */
-
- if(cl->status.outgoing && cl->status.active)
- {
- signal(SIGALRM, sigalrm_handler);
- seconds_till_retry = 5;
- alarm(seconds_till_retry);
- syslog(LOG_NOTICE, _("Trying to re-establish outgoing connection in 5 seconds"));
- }
-
- /* Inactivate */
-
- cl->status.active = 0;
-cp
-}
+ read_config_options(config_tree, NULL);
+
+ xasprintf(&fname, "%s" SLASH "hosts" SLASH "%s", confbase, myself->name);
+ read_config_file(config_tree, fname);
+ free(fname);
+
+ /* Parse some options that are allowed to be changed while tinc is running */
+
+ setup_myself_reloadable();
+
+ /* If StrictSubnet is set, expire deleted Subnets and read new ones in */
+
+ if(strictsubnets) {
+ subnet_t *subnet;
+
+ for(node = subnet_tree->head; node; node = node->next) {
+ subnet = node->data;
+ subnet->expires = 1;
+ }
+
+ load_all_subnets();
+
+ for(node = subnet_tree->head; node; node = next) {
+ next = node->next;
+ subnet = node->data;
+ if(subnet->expires == 1) {
+ send_del_subnet(everyone, subnet);
+ if(subnet->owner->status.reachable)
+ subnet_update(subnet->owner, subnet, false);
+ subnet_del(subnet->owner, subnet);
+ } else if(subnet->expires == -1) {
+ subnet->expires = 0;
+ } else {
+ send_add_subnet(everyone, subnet);
+ if(subnet->owner->status.reachable)
+ subnet_update(subnet->owner, subnet, true);
+ }
+ }
+ } else { /* Only read our own subnets back in */
+ subnet_t *subnet, *s2;
+
+ for(node = myself->subnet_tree->head; node; node = node->next) {
+ subnet_t *subnet = node->data;
+ logger(DEBUG_ALWAYS, LOG_DEBUG, "subnet %p expires %d", subnet, (int)subnet->expires);
+ if(!subnet->expires)
+ subnet->expires = 1;
+ }
+
+ config_t *cfg = lookup_config(config_tree, "Subnet");
+
+ while(cfg) {
+ if(!get_config_subnet(cfg, &subnet))
+ continue;
+
+ if((s2 = lookup_subnet(myself, subnet))) {
+ logger(DEBUG_ALWAYS, LOG_DEBUG, "read subnet that already exists: %p expires %d", s2, (int)s2->expires);
+ if(s2->expires == 1)
+ s2->expires = 0;
+
+ free_subnet(subnet);
+ } else {
+ logger(DEBUG_ALWAYS, LOG_DEBUG, "read new subnet %p", subnet);
+ subnet_add(myself, subnet);
+ send_add_subnet(everyone, subnet);
+ subnet_update(myself, subnet, true);
+ }
+
+ cfg = lookup_config_next(config_tree, cfg);
+ }
+
+ for(node = myself->subnet_tree->head; node; node = next) {
+ next = node->next;
+ subnet_t *subnet = node->data;
+ if(subnet->expires == 1) {
+ logger(DEBUG_ALWAYS, LOG_DEBUG, "removed subnet %p", subnet);
+ send_del_subnet(everyone, subnet);
+ subnet_update(myself, subnet, false);
+ subnet_del(myself, subnet);
+ }
+ }
+ }