/*
net.c -- most of the network code
Copyright (C) 1998-2005 Ivo Timmermans,
- 2000-2010 Guus Sliepen <guus@tinc-vpn.org>
+ 2000-2011 Guus Sliepen <guus@tinc-vpn.org>
2006 Scott Lamb <slamb@slamb.org>
This program is free software; you can redistribute it and/or modify
volatile bool running = false;
time_t now = 0;
+int contradicting_add_edge = 0;
+int contradicting_del_edge = 0;
/* Purge edges and subnets of unreachable nodes. Use carefully. */
int result, i;
socklen_t len = sizeof(result);
vpn_packet_t packet;
+ static int errors = 0;
/* check input from kernel */
if(device_fd >= 0 && FD_ISSET(device_fd, readset)) {
if(read_packet(&packet)) {
+ errors = 0;
packet.priority = 0;
route(myself, &packet);
+ } else {
+ usleep(errors * 50000);
+ errors++;
+ if(errors > 10) {
+ logger(LOG_ERR, "Too many errors from %s, exiting!", device);
+ running = false;
+ }
}
}
if(FD_ISSET(c->socket, readset)) {
if(c->status.connecting) {
c->status.connecting = false;
- getsockopt(c->socket, SOL_SOCKET, SO_ERROR, &result, &len);
+ getsockopt(c->socket, SOL_SOCKET, SO_ERROR, (void *)&result, &len);
if(!result)
finish_connecting(c);
}
}
- send_key_changed(broadcast, myself);
+ send_key_changed();
keyexpires = now + keylifetime;
}
+
+ if(contradicting_del_edge > 10 && contradicting_add_edge > 10) {
+ logger(LOG_WARNING, "Possible node with same Name as us!");
+
+ if(rand() % 3 == 0) {
+ logger(LOG_ERR, "Shutting down, check configuration of all nodes for duplicate Names!");
+ running = false;
+ break;
+ }
+
+ contradicting_add_edge = 0;
+ contradicting_del_edge = 0;
+ }
}
if(sigalrm) {
last_config_check = now;
+ /* 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(broadcast, 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(broadcast, subnet);
+ if(subnet->owner->status.reachable)
+ subnet_update(subnet->owner, subnet, true);
+ }
+ }
+ }
+
/* Try to make outgoing connections */
try_outgoing_connections();