#include "conf.h"
#include "connection.h"
#include "device.h"
-#include "tevent.h"
#include "graph.h"
#include "logger.h"
#include "net.h"
return true;
}
+static struct event keyexpire_event;
+
+static void keyexpire_handler(int fd, short events, void *data) {
+ regenerate_key();
+}
+
+void regenerate_key() {
+ RAND_pseudo_bytes((unsigned char *)myself->key, myself->keylength);
+
+ if(timeout_initialized(&keyexpire_event)) {
+ ifdebug(STATUS) logger(LOG_INFO, _("Regenerating symmetric key"));
+ event_del(&keyexpire_event);
+ send_key_changed(broadcast, myself);
+ } else {
+ timeout_set(&keyexpire_event, keyexpire_handler, NULL);
+ }
+
+ event_add(&keyexpire_event, &(struct timeval){keylifetime, 0});
+
+ if(myself->cipher) {
+ EVP_CIPHER_CTX_init(&packet_ctx);
+ if(!EVP_DecryptInit_ex(&packet_ctx, myself->cipher, NULL, (unsigned char *)myself->key, (unsigned char *)myself->key + myself->cipher->key_len)) {
+ logger(LOG_ERR, _("Error during initialisation of cipher for %s (%s): %s"),
+ myself->name, myself->hostname, ERR_error_string(ERR_get_error(), NULL));
+ abort();
+ }
+
+ }
+}
+
/*
Configure node_t myself and set up the local sockets (listen only)
*/
myself->connection->outcipher = EVP_bf_ofb();
myself->key = xmalloc(myself->keylength);
- RAND_pseudo_bytes((unsigned char *)myself->key, myself->keylength);
if(!get_config_int(lookup_config(config_tree, "KeyExpire"), &keylifetime))
keylifetime = 3600;
- keyexpires = now + keylifetime;
-
- if(myself->cipher) {
- EVP_CIPHER_CTX_init(&packet_ctx);
- if(!EVP_DecryptInit_ex(&packet_ctx, myself->cipher, NULL, (unsigned char *)myself->key, (unsigned char *)myself->key + myself->cipher->key_len)) {
- logger(LOG_ERR, _("Error during initialisation of cipher for %s (%s): %s"),
- myself->name, myself->hostname, ERR_error_string(ERR_get_error(), NULL));
- return false;
- }
-
- }
-
+ regenerate_key();
/* Check if we want to use message authentication codes... */
if(get_config_string
memcpy(&listen_socket[listen_sockets].sa, aip->ai_addr, aip->ai_addrlen);
listen_sockets++;
+
+ if(listen_sockets >= MAXSOCKETS) {
+ logger(LOG_WARNING, _("Maximum of %d listening sockets reached"), MAXSOCKETS);
+ break;
+ }
}
freeaddrinfo(ai);
{
cp();
- now = time(NULL);
-
- init_tevents();
init_connections();
init_subnets();
init_nodes();
}
for(i = 0; i < listen_sockets; i++) {
+ event_del(&listen_socket[i].ev_tcp);
+ event_del(&listen_socket[i].ev_udp);
close(listen_socket[i].tcp);
close(listen_socket[i].udp);
}
exit_subnets();
exit_nodes();
exit_connections();
- exit_tevents();
execute_script("tinc-down", envp);