- if(!get_config_int(lookup_config(config_tree, "MACExpire"), &macexpire))
- macexpire= 600;
-
- if(get_config_int(lookup_config(myself->connection->config_tree, "MaxTimeout"), &maxtimeout))
- {
- if(maxtimeout <= 0)
- {
- syslog(LOG_ERR, _("Bogus maximum timeout!"));
- return -1;
- }
- }
- else
- maxtimeout = 900;
-
- if(get_config_string(lookup_config(config_tree, "AddressFamily"), &afname))
- {
- if(!strcasecmp(afname, "IPv4"))
- addressfamily = AF_INET;
- else if (!strcasecmp(afname, "IPv6"))
- addressfamily = AF_INET6;
- else if (!strcasecmp(afname, "any"))
- addressfamily = AF_UNSPEC;
- else
- {
- syslog(LOG_ERR, _("Invalid address family!"));
- return -1;
- }
- free(afname);
- }
- else
- addressfamily = AF_INET;
-
- get_config_bool(lookup_config(config_tree, "Hostnames"), &hostnames);
-cp
- /* Generate packet encryption key */
-
- if(get_config_string(lookup_config(myself->connection->config_tree, "Cipher"), &cipher))
- {
- if(!strcasecmp(cipher, "none"))
- {
- myself->cipher = NULL;
- }
- else
- {
- if(!(myself->cipher = EVP_get_cipherbyname(cipher)))
- {
- syslog(LOG_ERR, _("Unrecognized cipher type!"));
- return -1;
- }
- }
- }
- else
- myself->cipher = EVP_bf_cbc();
-
- if(myself->cipher)
- myself->keylength = myself->cipher->key_len + myself->cipher->iv_len;
- else
- myself->keylength = 1;
-
- myself->connection->outcipher = EVP_bf_ofb();
-
- myself->key = (char *)xmalloc(myself->keylength);
- RAND_pseudo_bytes(myself->key, myself->keylength);
-
- if(!get_config_int(lookup_config(config_tree, "KeyExpire"), &keylifetime))
- keylifetime = 3600;
-
- keyexpires = now + keylifetime;
-
- /* Check if we want to use message authentication codes... */
-
- if(get_config_string(lookup_config(myself->connection->config_tree, "Digest"), &digest))
- {
- if(!strcasecmp(digest, "none"))
- {
- myself->digest = NULL;
- }
- else
- {
- if(!(myself->digest = EVP_get_digestbyname(digest)))
- {
- syslog(LOG_ERR, _("Unrecognized digest type!"));
- return -1;
- }
- }
- }
- else
- myself->digest = EVP_sha1();
-
- myself->connection->outdigest = EVP_sha1();
-
- if(get_config_int(lookup_config(myself->connection->config_tree, "MACLength"), &myself->maclength))
- {
- if(myself->digest)
- {
- if(myself->maclength > myself->digest->md_size)
- {
- syslog(LOG_ERR, _("MAC length exceeds size of digest!"));
- return -1;
- }
- else if (myself->maclength < 0)
- {
- syslog(LOG_ERR, _("Bogus MAC length!"));
- return -1;
- }
- }
- }
- else
- myself->maclength = 4;
-
- myself->connection->outmaclength = 0;
-
- /* Compression */
-
- if(get_config_int(lookup_config(myself->connection->config_tree, "Compression"), &myself->compression))
- {
- if(myself->compression < 0 || myself->compression > 9)
- {
- syslog(LOG_ERR, _("Bogus compression level!"));
- return -1;
- }
- }
- else
- myself->compression = 0;
-
- myself->connection->outcompression = 0;
-cp
- /* Done */
-
- myself->nexthop = myself;
- myself->via = myself;
- myself->status.active = 1;
- myself->status.reachable = 1;
- node_add(myself);
-
- graph();
-
-cp
- /* Open sockets */
-
- memset(&hint, 0, sizeof(hint));
-
- get_config_string(lookup_config(config_tree, "BindToAddress"), &address);
-
- hint.ai_family = addressfamily;
- hint.ai_socktype = SOCK_STREAM;
- hint.ai_protocol = IPPROTO_TCP;
- hint.ai_flags = AI_PASSIVE;
-
- if((err = getaddrinfo(address, myport, &hint, &ai)) || !ai)
- {
- syslog(LOG_ERR, _("System call `%s' failed: %s"), "getaddrinfo", gai_strerror(err));
- return -1;
- }
-
- for(aip = ai; aip; aip = aip->ai_next)
- {
- if((listen_socket[listen_sockets].tcp = setup_listen_socket((sockaddr_t *)aip->ai_addr)) < 0)
- continue;
-
- if((listen_socket[listen_sockets].udp = setup_vpn_in_socket((sockaddr_t *)aip->ai_addr)) < 0)
- continue;
-
- if(debug_lvl >= DEBUG_CONNECTIONS)
- {
- hostname = sockaddr2hostname((sockaddr_t *)aip->ai_addr);
- syslog(LOG_NOTICE, _("Listening on %s"), hostname);
- free(hostname);
+ if(!get_config_int(lookup_config(config_tree, "MACExpire"), &macexpire))
+ macexpire = 600;
+
+ if(get_config_int(lookup_config(config_tree, "MaxTimeout"), &maxtimeout)) {
+ if(maxtimeout <= 0) {
+ logger(LOG_ERR, "Bogus maximum timeout!");
+ return false;
+ }
+ } else
+ maxtimeout = 900;
+
+ if(get_config_string(lookup_config(config_tree, "AddressFamily"), &afname)) {
+ if(!strcasecmp(afname, "IPv4"))
+ addressfamily = AF_INET;
+ else if(!strcasecmp(afname, "IPv6"))
+ addressfamily = AF_INET6;
+ else if(!strcasecmp(afname, "any"))
+ addressfamily = AF_UNSPEC;
+ else {
+ logger(LOG_ERR, "Invalid address family!");
+ return false;
+ }
+ free(afname);
+ }
+
+ get_config_bool(lookup_config(config_tree, "Hostnames"), &hostnames);
+
+ /* Generate packet encryption key */
+
+ if(!get_config_string(lookup_config(myself->connection->config_tree, "Cipher"), &cipher))
+ cipher = xstrdup("blowfish");
+
+ if(!cipher_open_by_name(&myself->incipher, cipher)) {
+ logger(LOG_ERR, "Unrecognized cipher type!");
+ return false;
+ }
+
+ if(!get_config_int(lookup_config(config_tree, "KeyExpire"), &keylifetime))
+ keylifetime = 3600;
+
+ regenerate_key();
+
+ /* Check if we want to use message authentication codes... */
+
+ if(!get_config_string(lookup_config(myself->connection->config_tree, "Digest"), &digest))
+ digest = xstrdup("sha1");
+
+ int maclength = 4;
+ get_config_int(lookup_config(myself->connection->config_tree, "MACLength"), &maclength);
+
+ if(maclength < 0) {
+ logger(LOG_ERR, "Bogus MAC length!");
+ return false;
+ }
+
+ if(!digest_open_by_name(&myself->indigest, digest, maclength)) {
+ logger(LOG_ERR, "Unrecognized digest type!");
+ return false;
+ }
+
+ /* Compression */
+
+ if(get_config_int(lookup_config(myself->connection->config_tree, "Compression"), &myself->incompression)) {
+ if(myself->incompression < 0 || myself->incompression > 11) {
+ logger(LOG_ERR, "Bogus compression level!");
+ return false;
+ }
+ } else
+ myself->incompression = 0;
+
+ myself->connection->outcompression = 0;
+
+ /* Done */
+
+ myself->nexthop = myself;
+ myself->via = myself;
+ myself->status.reachable = true;
+ node_add(myself);
+
+ graph();
+
+ /* Open device */
+
+ if(!setup_device())
+ return false;
+
+ if(device_fd >= 0) {
+ event_set(&device_ev, device_fd, EV_READ|EV_PERSIST, handle_device_data, NULL);
+
+ if (event_add(&device_ev, NULL) < 0) {
+ logger(LOG_ERR, "event_add failed: %s", strerror(errno));
+ close_device();
+ return false;
+ }
+ }
+
+ /* Run tinc-up script to further initialize the tap interface */
+ xasprintf(&envp[0], "NETNAME=%s", netname ? : "");
+ xasprintf(&envp[1], "DEVICE=%s", device ? : "");
+ xasprintf(&envp[2], "INTERFACE=%s", iface ? : "");
+ xasprintf(&envp[3], "NAME=%s", myself->name);
+ envp[4] = NULL;
+
+ execute_script("tinc-up", envp);
+
+ for(i = 0; i < 5; i++)
+ free(envp[i]);
+
+ /* Run subnet-up scripts for our own subnets */
+
+ subnet_update(myself, NULL, true);
+
+ /* Open sockets */
+
+ get_config_string(lookup_config(config_tree, "BindToAddress"), &address);
+
+ hint.ai_family = addressfamily;
+ hint.ai_socktype = SOCK_STREAM;
+ hint.ai_protocol = IPPROTO_TCP;
+ hint.ai_flags = AI_PASSIVE;
+
+ err = getaddrinfo(address, myport, &hint, &ai);
+
+ if(err || !ai) {
+ logger(LOG_ERR, "System call `%s' failed: %s", "getaddrinfo",
+ gai_strerror(err));
+ return false;
+ }
+
+ listen_sockets = 0;
+
+ for(aip = ai; aip; aip = aip->ai_next) {
+ listen_socket[listen_sockets].tcp =
+ setup_listen_socket((sockaddr_t *) aip->ai_addr);
+
+ if(listen_socket[listen_sockets].tcp < 0)
+ continue;
+
+ listen_socket[listen_sockets].udp =
+ setup_vpn_in_socket((sockaddr_t *) aip->ai_addr);
+
+ if(listen_socket[listen_sockets].udp < 0) {
+ close(listen_socket[listen_sockets].tcp);
+ continue;
+ }
+
+ event_set(&listen_socket[listen_sockets].ev_tcp,
+ listen_socket[listen_sockets].tcp,
+ EV_READ|EV_PERSIST,
+ handle_new_meta_connection, NULL);
+ if(event_add(&listen_socket[listen_sockets].ev_tcp, NULL) < 0) {
+ logger(LOG_EMERG, "event_add failed: %s", strerror(errno));
+ abort();
+ }
+
+ event_set(&listen_socket[listen_sockets].ev_udp,
+ listen_socket[listen_sockets].udp,
+ EV_READ|EV_PERSIST,
+ handle_incoming_vpn_data, NULL);
+ if(event_add(&listen_socket[listen_sockets].ev_udp, NULL) < 0) {
+ logger(LOG_EMERG, "event_add failed: %s", strerror(errno));
+ abort();
+ }
+
+ ifdebug(CONNECTIONS) {
+ hostname = sockaddr2hostname((sockaddr_t *) aip->ai_addr);
+ logger(LOG_NOTICE, "Listening on %s", hostname);
+ free(hostname);
+ }
+
+ 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;
+ }