X-Git-Url: https://git.librecmc.org/?p=oweals%2Ftinc.git;a=blobdiff_plain;f=src%2Fnet_setup.c;h=f41f9527df89d34d929dfdbec6676f35a10c546f;hp=0d49ae914d8f83e5a29e78a2eb641cda31eb0a66;hb=218adee785df7c79ac18395d056a2eb6d63c407f;hpb=e3220cacb5bc79fc56167e61b7a342f88a33a479 diff --git a/src/net_setup.c b/src/net_setup.c index 0d49ae9..f41f952 100644 --- a/src/net_setup.c +++ b/src/net_setup.c @@ -1,7 +1,7 @@ /* net_setup.c -- Setup. - Copyright (C) 1998-2003 Ivo Timmermans , - 2000-2003 Guus Sliepen + Copyright (C) 1998-2005 Ivo Timmermans, + 2000-2009 Guus Sliepen This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -17,7 +17,7 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id: net_setup.c,v 1.1.2.46 2003/11/17 15:30:17 guus Exp $ + $Id$ */ #include "system.h" @@ -150,17 +150,23 @@ bool read_rsa_public_key(connection_t *c) bool read_rsa_private_key(void) { FILE *fp; - char *fname, *key; + char *fname, *key, *pubkey; struct stat s; cp(); if(get_config_string(lookup_config(config_tree, "PrivateKey"), &key)) { + if(!get_config_string(lookup_config(myself->connection->config_tree, "PublicKey"), &pubkey)) { + logger(LOG_ERR, _("PrivateKey used but no PublicKey found!")); + return false; + } myself->connection->rsa_key = RSA_new(); // RSA_blinding_on(myself->connection->rsa_key, NULL); BN_hex2bn(&myself->connection->rsa_key->d, key); + BN_hex2bn(&myself->connection->rsa_key->n, pubkey); BN_hex2bn(&myself->connection->rsa_key->e, "FFFF"); free(key); + free(pubkey); return true; } @@ -242,19 +248,15 @@ bool setup_myself(void) myself->name = name; myself->connection->name = xstrdup(name); - if(!read_rsa_private_key()) - return false; - if(!read_connection_config(myself->connection)) { logger(LOG_ERR, _("Cannot open host configuration file for myself!")); return false; } - if(!read_rsa_public_key(myself->connection)) + if(!read_rsa_private_key()) return false; - if(!get_config_string - (lookup_config(myself->connection->config_tree, "Port"), &myport)) + if(!get_config_string(lookup_config(myself->connection->config_tree, "Port"), &myport)) asprintf(&myport, "655"); /* Read in all the subnets specified in the host configuration file */ @@ -272,21 +274,17 @@ bool setup_myself(void) /* Check some options */ - if(get_config_bool(lookup_config(config_tree, "IndirectData"), &choice)) - if(choice) - myself->options |= OPTION_INDIRECT; + if(get_config_bool(lookup_config(config_tree, "IndirectData"), &choice) && choice) + myself->options |= OPTION_INDIRECT; - if(get_config_bool(lookup_config(config_tree, "TCPOnly"), &choice)) - if(choice) - myself->options |= OPTION_TCPONLY; + if(get_config_bool(lookup_config(config_tree, "TCPOnly"), &choice) && choice) + myself->options |= OPTION_TCPONLY; - if(get_config_bool(lookup_config(myself->connection->config_tree, "IndirectData"), &choice)) - if(choice) - myself->options |= OPTION_INDIRECT; + if(get_config_bool(lookup_config(myself->connection->config_tree, "IndirectData"), &choice) && choice) + myself->options |= OPTION_INDIRECT; - if(get_config_bool(lookup_config(myself->connection->config_tree, "TCPOnly"), &choice)) - if(choice) - myself->options |= OPTION_TCPONLY; + if(get_config_bool(lookup_config(myself->connection->config_tree, "TCPOnly"), &choice) && choice) + myself->options |= OPTION_TCPONLY; if(myself->options & OPTION_TCPONLY) myself->options |= OPTION_INDIRECT; @@ -308,17 +306,21 @@ bool setup_myself(void) } else routing_mode = RMODE_ROUTER; + if(routing_mode == RMODE_ROUTER) + if(!get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) || choice) + myself->options |= OPTION_PMTU_DISCOVERY; + get_config_bool(lookup_config(config_tree, "PriorityInheritance"), &priorityinheritance); #if !defined(SOL_IP) || !defined(IP_TOS) if(priorityinheritance) - logger(LOG_WARNING, _("PriorityInheritance not supported on this platform")); + logger(LOG_WARNING, _("%s not supported on this platform"), "PriorityInheritance"); #endif 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(get_config_int(lookup_config(config_tree, "MaxTimeout"), &maxtimeout)) { if(maxtimeout <= 0) { logger(LOG_ERR, _("Bogus maximum timeout!")); return false; @@ -347,88 +349,72 @@ bool setup_myself(void) if(get_config_string (lookup_config(myself->connection->config_tree, "Cipher"), &cipher)) { if(!strcasecmp(cipher, "none")) { - myself->cipher = NULL; + myself->incipher = NULL; } else { - myself->cipher = EVP_get_cipherbyname(cipher); + myself->incipher = EVP_get_cipherbyname(cipher); - if(!myself->cipher) { + if(!myself->incipher) { logger(LOG_ERR, _("Unrecognized cipher type!")); return false; } } } else - myself->cipher = EVP_bf_cbc(); + myself->incipher = EVP_bf_cbc(); - if(myself->cipher) - myself->keylength = myself->cipher->key_len + myself->cipher->iv_len; + if(myself->incipher) + myself->inkeylength = myself->incipher->key_len + myself->incipher->iv_len; else - myself->keylength = 1; + myself->inkeylength = 1; myself->connection->outcipher = EVP_bf_ofb(); - myself->key = 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; - if(myself->cipher) { - EVP_CIPHER_CTX_init(&packet_ctx); - if(!EVP_DecryptInit_ex(&packet_ctx, myself->cipher, NULL, myself->key, 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; - } - - } - /* Check if we want to use message authentication codes... */ - if(get_config_string - (lookup_config(myself->connection->config_tree, "Digest"), &digest)) { + if(get_config_string(lookup_config(myself->connection->config_tree, "Digest"), &digest)) { if(!strcasecmp(digest, "none")) { - myself->digest = NULL; + myself->indigest = NULL; } else { - myself->digest = EVP_get_digestbyname(digest); + myself->indigest = EVP_get_digestbyname(digest); - if(!myself->digest) { + if(!myself->indigest) { logger(LOG_ERR, _("Unrecognized digest type!")); return false; } } } else - myself->digest = EVP_sha1(); + myself->indigest = 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) { + if(get_config_int(lookup_config(myself->connection->config_tree, "MACLength"), &myself->inmaclength)) { + if(myself->indigest) { + if(myself->inmaclength > myself->indigest->md_size) { logger(LOG_ERR, _("MAC length exceeds size of digest!")); return false; - } else if(myself->maclength < 0) { + } else if(myself->inmaclength < 0) { logger(LOG_ERR, _("Bogus MAC length!")); return false; } } } else - myself->maclength = 4; + myself->inmaclength = 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 > 11) { + 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->compression = 0; + myself->incompression = 0; myself->connection->outcompression = 0; @@ -436,7 +422,6 @@ bool setup_myself(void) myself->nexthop = myself; myself->via = myself; - myself->status.active = true; myself->status.reachable = true; node_add(myself); @@ -459,6 +444,10 @@ bool setup_myself(void) 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); @@ -497,7 +486,7 @@ bool setup_myself(void) free(hostname); } - listen_socket[listen_sockets].sa.sa = *aip->ai_addr; + memcpy(&listen_socket[listen_sockets].sa, aip->ai_addr, aip->ai_addrlen); listen_sockets++; } @@ -514,33 +503,39 @@ bool setup_myself(void) } /* - setup all initial network connections + initialize network */ -bool setup_network_connections(void) +bool setup_network(void) { cp(); now = time(NULL); + init_events(); init_connections(); init_subnets(); init_nodes(); init_edges(); - init_events(); init_requests(); - if(get_config_int(lookup_config(config_tree, "PingTimeout"), &pingtimeout)) { - if(pingtimeout < 1) { - pingtimeout = 86400; + if(get_config_int(lookup_config(config_tree, "PingInterval"), &pinginterval)) { + if(pinginterval < 1) { + pinginterval = 86400; } } else - pingtimeout = 60; + pinginterval = 60; + + if(!get_config_int(lookup_config(config_tree, "PingTimeout"), &pingtimeout)) + pingtimeout = 5; + if(pingtimeout < 1 || pingtimeout > pinginterval) + pingtimeout = pinginterval; + + if(!get_config_int(lookup_config(config_tree, "MaxOutputBufferSize"), &maxoutbufsize)) + maxoutbufsize = 10 * MTU; if(!setup_myself()) return false; - try_outgoing_connections(); - return true; } @@ -559,35 +554,42 @@ void close_network_connections(void) for(node = connection_tree->head; node; node = next) { next = node->next; c = node->data; - - if(c->outgoing) - free(c->outgoing->name), free(c->outgoing), c->outgoing = NULL; + c->outgoing = false; terminate_connection(c, false); } - if(myself && myself->connection) + list_delete_list(outgoing_list); + + if(myself && myself->connection) { + subnet_update(myself, NULL, false); terminate_connection(myself->connection, false); + free_connection(myself->connection); + } for(i = 0; i < listen_sockets; i++) { close(listen_socket[i].tcp); close(listen_socket[i].udp); } - exit_requests(); - exit_events(); - exit_edges(); - exit_subnets(); - exit_nodes(); - exit_connections(); - asprintf(&envp[0], "NETNAME=%s", netname ? : ""); asprintf(&envp[1], "DEVICE=%s", device ? : ""); asprintf(&envp[2], "INTERFACE=%s", iface ? : ""); asprintf(&envp[3], "NAME=%s", myself->name); envp[4] = NULL; + exit_requests(); + exit_edges(); + exit_subnets(); + exit_nodes(); + exit_connections(); + exit_events(); + execute_script("tinc-down", envp); + if(myport) free(myport); + + EVP_CIPHER_CTX_cleanup(&packet_ctx); + for(i = 0; i < 4; i++) free(envp[i]);