X-Git-Url: https://git.librecmc.org/?p=oweals%2Ftinc.git;a=blobdiff_plain;f=src%2Fnet_setup.c;h=2c07ec63ebac40f4141fe85c6ae4906a6169dc5c;hp=6278f5d67df47259c479630204279ccd4d871389;hb=25447b384173cc3c99660c784fd784c787917e80;hpb=80ea653e8d8050878380fbc1446571cbaf578297 diff --git a/src/net_setup.c b/src/net_setup.c index 6278f5d..2c07ec6 100644 --- a/src/net_setup.c +++ b/src/net_setup.c @@ -1,7 +1,7 @@ /* net_setup.c -- Setup. - Copyright (C) 1998-2002 Ivo Timmermans , - 2000-2002 Guus Sliepen + Copyright (C) 1998-2003 Ivo Timmermans , + 2000-2003 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 @@ -17,550 +17,531 @@ 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 1.1.2.6 2002/03/01 12:25:58 guus Exp $ + $Id: net_setup.c,v 1.1.2.47 2003/12/07 14:28:39 guus Exp $ */ -#include "config.h" - -#include -#include -#include -#include -#ifdef HAVE_LINUX - #include - #include -#endif -#include -#include -#include -#include -#include -#include -#include -#include -#include -/* SunOS really wants sys/socket.h BEFORE net/if.h, - and FreeBSD wants these lines below the rest. */ -#include -#include -#include +#include "system.h" #include #include #include +#include +#include -#include -#include -#include -#include - +#include "avl_tree.h" #include "conf.h" #include "connection.h" -#include "meta.h" +#include "device.h" +#include "event.h" +#include "graph.h" +#include "logger.h" #include "net.h" #include "netutl.h" #include "process.h" #include "protocol.h" -#include "subnet.h" -#include "graph.h" -#include "process.h" #include "route.h" -#include "device.h" -#include "event.h" - -#include "system.h" +#include "subnet.h" +#include "utils.h" +#include "xalloc.h" char *myport; -int read_rsa_public_key(connection_t *c) +bool read_rsa_public_key(connection_t *c) { - FILE *fp; - char *fname; - char *key; -cp - if(!c->rsa_key) - c->rsa_key = RSA_new(); - - /* First, check for simple PublicKey statement */ - - if(get_config_string(lookup_config(c->config_tree, "PublicKey"), &key)) - { - BN_hex2bn(&c->rsa_key->n, key); - BN_hex2bn(&c->rsa_key->e, "FFFF"); - free(key); - return 0; - } - - /* Else, check for PublicKeyFile statement and read it */ - - if(get_config_string(lookup_config(c->config_tree, "PublicKeyFile"), &fname)) - { - if(is_safe_path(fname)) - { - if((fp = fopen(fname, "r")) == NULL) - { - syslog(LOG_ERR, _("Error reading RSA public key file `%s': %s"), - fname, strerror(errno)); - free(fname); - return -1; - } - free(fname); - c->rsa_key = PEM_read_RSAPublicKey(fp, &c->rsa_key, NULL, NULL); - fclose(fp); - if(!c->rsa_key) - { - syslog(LOG_ERR, _("Reading RSA public key file `%s' failed: %s"), - fname, strerror(errno)); - return -1; - } - return 0; - } - else - { - free(fname); - return -1; - } - } - - /* Else, check if a harnessed public key is in the config file */ - - asprintf(&fname, "%s/hosts/%s", confbase, c->name); - if((fp = fopen(fname, "r"))) - { - c->rsa_key = PEM_read_RSAPublicKey(fp, &c->rsa_key, NULL, NULL); - fclose(fp); - } - - free(fname); - - if(c->rsa_key) - return 0; - else - { - syslog(LOG_ERR, _("No public key for %s specified!"), c->name); - return -1; - } -} + FILE *fp; + char *fname; + char *key; -int read_rsa_private_key(void) -{ - FILE *fp; - char *fname, *key; -cp - if(get_config_string(lookup_config(config_tree, "PrivateKey"), &key)) - { - myself->connection->rsa_key = RSA_new(); - BN_hex2bn(&myself->connection->rsa_key->d, key); - BN_hex2bn(&myself->connection->rsa_key->e, "FFFF"); - free(key); - return 0; - } - - if(!get_config_string(lookup_config(config_tree, "PrivateKeyFile"), &fname)) - asprintf(&fname, "%s/rsa_key.priv", confbase); - - if(is_safe_path(fname)) - { - if((fp = fopen(fname, "r")) == NULL) - { - syslog(LOG_ERR, _("Error reading RSA private key file `%s': %s"), - fname, strerror(errno)); - free(fname); - return -1; - } - free(fname); - myself->connection->rsa_key = PEM_read_RSAPrivateKey(fp, NULL, NULL, NULL); - fclose(fp); - if(!myself->connection->rsa_key) - { - syslog(LOG_ERR, _("Reading RSA private key file `%s' failed: %s"), - fname, strerror(errno)); - return -1; - } - return 0; - } - - free(fname); - return -1; + cp(); + + if(!c->rsa_key) { + c->rsa_key = RSA_new(); +// RSA_blinding_on(c->rsa_key, NULL); + } + + /* First, check for simple PublicKey statement */ + + if(get_config_string(lookup_config(c->config_tree, "PublicKey"), &key)) { + BN_hex2bn(&c->rsa_key->n, key); + BN_hex2bn(&c->rsa_key->e, "FFFF"); + free(key); + return true; + } + + /* Else, check for PublicKeyFile statement and read it */ + + if(get_config_string(lookup_config(c->config_tree, "PublicKeyFile"), &fname)) { + fp = fopen(fname, "r"); + + if(!fp) { + logger(LOG_ERR, _("Error reading RSA public key file `%s': %s"), + fname, strerror(errno)); + free(fname); + return false; + } + + free(fname); + c->rsa_key = PEM_read_RSAPublicKey(fp, &c->rsa_key, NULL, NULL); + fclose(fp); + + if(c->rsa_key) + return true; /* Woohoo. */ + + /* If it fails, try PEM_read_RSA_PUBKEY. */ + fp = fopen(fname, "r"); + + if(!fp) { + logger(LOG_ERR, _("Error reading RSA public key file `%s': %s"), + fname, strerror(errno)); + free(fname); + return false; + } + + free(fname); + c->rsa_key = PEM_read_RSA_PUBKEY(fp, &c->rsa_key, NULL, NULL); + fclose(fp); + + if(c->rsa_key) { +// RSA_blinding_on(c->rsa_key, NULL); + return true; + } + + logger(LOG_ERR, _("Reading RSA public key file `%s' failed: %s"), + fname, strerror(errno)); + return false; + } + + /* Else, check if a harnessed public key is in the config file */ + + asprintf(&fname, "%s/hosts/%s", confbase, c->name); + fp = fopen(fname, "r"); + + if(fp) { + c->rsa_key = PEM_read_RSAPublicKey(fp, &c->rsa_key, NULL, NULL); + fclose(fp); + } + + free(fname); + + if(c->rsa_key) + return true; + + /* Try again with PEM_read_RSA_PUBKEY. */ + + asprintf(&fname, "%s/hosts/%s", confbase, c->name); + fp = fopen(fname, "r"); + + if(fp) { + c->rsa_key = PEM_read_RSA_PUBKEY(fp, &c->rsa_key, NULL, NULL); +// RSA_blinding_on(c->rsa_key, NULL); + fclose(fp); + } + + free(fname); + + if(c->rsa_key) + return true; + + logger(LOG_ERR, _("No public key for %s specified!"), c->name); + + return false; } -int check_rsa_key(RSA *rsa_key) +bool read_rsa_private_key(void) { - char *test1, *test2, *test3; -cp - if(rsa_key->p && rsa_key->q) - { - if(RSA_check_key(rsa_key) != 1) - return -1; - } - else - { - test1 = xmalloc(RSA_size(rsa_key)); - test2 = xmalloc(RSA_size(rsa_key)); - test3 = xmalloc(RSA_size(rsa_key)); - - if(RSA_public_encrypt(RSA_size(rsa_key), test1, test2, rsa_key, RSA_NO_PADDING) != RSA_size(rsa_key)) - return -1; - - if(RSA_private_decrypt(RSA_size(rsa_key), test2, test3, rsa_key, RSA_NO_PADDING) != RSA_size(rsa_key)) - return -1; - - if(memcmp(test1, test3, RSA_size(rsa_key))) - return -1; - } -cp - return 0; + FILE *fp; + char *fname, *key; + struct stat s; + + cp(); + + if(get_config_string(lookup_config(config_tree, "PrivateKey"), &key)) { + 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->e, "FFFF"); + free(key); + return true; + } + + if(!get_config_string(lookup_config(config_tree, "PrivateKeyFile"), &fname)) + asprintf(&fname, "%s/rsa_key.priv", confbase); + + fp = fopen(fname, "r"); + + if(!fp) { + logger(LOG_ERR, _("Error reading RSA private key file `%s': %s"), + fname, strerror(errno)); + free(fname); + return false; + } + +#if !defined(HAVE_MINGW) && !defined(HAVE_CYGWIN) + if(fstat(fileno(fp), &s)) { + logger(LOG_ERR, _("Could not stat RSA private key file `%s': %s'"), + fname, strerror(errno)); + free(fname); + return false; + } + + if(s.st_mode & ~0100700) + logger(LOG_WARNING, _("Warning: insecure file permissions for RSA private key file `%s'!"), fname); +#endif + + myself->connection->rsa_key = PEM_read_RSAPrivateKey(fp, NULL, NULL, NULL); + fclose(fp); + + if(!myself->connection->rsa_key) { + logger(LOG_ERR, _("Reading RSA private key file `%s' failed: %s"), + fname, strerror(errno)); + free(fname); + return false; + } + + free(fname); + return true; } /* Configure node_t myself and set up the local sockets (listen only) */ -int setup_myself(void) +bool setup_myself(void) { - config_t *cfg; - subnet_t *subnet; - char *name, *hostname, *mode, *afname, *cipher, *digest; - struct addrinfo hint, *ai, *aip; - int choice, err, sock; -cp - myself = new_node(); - myself->connection = new_connection(); - init_configuration(&myself->connection->config_tree); - - asprintf(&myself->hostname, _("MYSELF")); - asprintf(&myself->connection->hostname, _("MYSELF")); - - myself->connection->options = 0; - myself->connection->protocol_version = PROT_CURRENT; - - if(!get_config_string(lookup_config(config_tree, "Name"), &name)) /* Not acceptable */ - { - syslog(LOG_ERR, _("Name for tinc daemon required!")); - return -1; - } - - if(check_id(name)) - { - syslog(LOG_ERR, _("Invalid name for myself!")); - free(name); - return -1; - } - - myself->name = name; - myself->connection->name = xstrdup(name); - -cp - if(read_rsa_private_key()) - return -1; - - if(read_connection_config(myself->connection)) - { - syslog(LOG_ERR, _("Cannot open host configuration file for myself!")); - return -1; - } - - if(read_rsa_public_key(myself->connection)) - return -1; -cp - - if(check_rsa_key(myself->connection->rsa_key)) - { - syslog(LOG_ERR, _("Invalid public/private keypair!")); - return -1; - } - - 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 */ - - cfg = lookup_config(myself->connection->config_tree, "Subnet"); - - while(cfg) - { - if(!get_config_subnet(cfg, &subnet)) - return -1; - - subnet_add(myself, subnet); - - cfg = lookup_config_next(myself->connection->config_tree, cfg); - } - -cp - /* 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, "TCPOnly"), &choice)) - if(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, "TCPOnly"), &choice)) - if(choice) - myself->options |= OPTION_TCPONLY; - - if(myself->options & OPTION_TCPONLY) - myself->options |= OPTION_INDIRECT; - - if(get_config_string(lookup_config(config_tree, "Mode"), &mode)) - { - if(!strcasecmp(mode, "router")) - routing_mode = RMODE_ROUTER; - else if (!strcasecmp(mode, "switch")) - routing_mode = RMODE_SWITCH; - else if (!strcasecmp(mode, "hub")) - routing_mode = RMODE_HUB; - else - { - syslog(LOG_ERR, _("Invalid routing mode!")); - return -1; - } - free(mode); - } - else - routing_mode = RMODE_ROUTER; - - get_config_bool(lookup_config(config_tree, "PriorityInheritance"), &priorityinheritance); - - 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 = time(NULL) + 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; - node_add(myself); - - graph(); - -cp - /* Open sockets */ - - memset(&hint, 0, sizeof(hint)); - - hint.ai_family = addressfamily; - hint.ai_socktype = SOCK_STREAM; - hint.ai_protocol = IPPROTO_TCP; - hint.ai_flags = AI_PASSIVE; - - if((err = getaddrinfo(NULL, myport, &hint, &ai)) || !ai) - { - syslog(LOG_ERR, _("System call `%s' failed: %s"), "getaddrinfo", gai_strerror(err)); - return -1; - } - - tcp_sockets = 0; - - for(aip = ai; aip; aip = aip->ai_next) - { - if((sock = setup_listen_socket((sockaddr_t *)aip->ai_addr)) < 0) - continue; - - tcp_socket[tcp_sockets++] = sock; - if(debug_lvl >= DEBUG_CONNECTIONS) - { - hostname = sockaddr2hostname((sockaddr_t *)aip->ai_addr); - syslog(LOG_NOTICE, _("Listening on %s/tcp"), hostname); - free(hostname); + config_t *cfg; + subnet_t *subnet; + char *name, *hostname, *mode, *afname, *cipher, *digest; + char *address = NULL; + char *envp[5]; + struct addrinfo *ai, *aip, hint = {0}; + bool choice; + int i, err; + + cp(); + + myself = new_node(); + myself->connection = new_connection(); + init_configuration(&myself->connection->config_tree); + + asprintf(&myself->hostname, _("MYSELF")); + asprintf(&myself->connection->hostname, _("MYSELF")); + + myself->connection->options = 0; + myself->connection->protocol_version = PROT_CURRENT; + + if(!get_config_string(lookup_config(config_tree, "Name"), &name)) { /* Not acceptable */ + logger(LOG_ERR, _("Name for tinc daemon required!")); + return false; + } + + if(!check_id(name)) { + logger(LOG_ERR, _("Invalid name for myself!")); + free(name); + return false; + } + + 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)) + return false; + + 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 */ + + cfg = lookup_config(myself->connection->config_tree, "Subnet"); + + while(cfg) { + if(!get_config_subnet(cfg, &subnet)) + return false; + + subnet_add(myself, subnet); + + cfg = lookup_config_next(myself->connection->config_tree, cfg); } - } - freeaddrinfo(ai); + /* 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, "TCPOnly"), &choice)) + if(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, "TCPOnly"), &choice)) + if(choice) + myself->options |= OPTION_TCPONLY; + + if(myself->options & OPTION_TCPONLY) + myself->options |= OPTION_INDIRECT; + + get_config_bool(lookup_config(config_tree, "TunnelServer"), &tunnelserver); + + if(get_config_string(lookup_config(config_tree, "Mode"), &mode)) { + if(!strcasecmp(mode, "router")) + routing_mode = RMODE_ROUTER; + else if(!strcasecmp(mode, "switch")) + routing_mode = RMODE_SWITCH; + else if(!strcasecmp(mode, "hub")) + routing_mode = RMODE_HUB; + else { + logger(LOG_ERR, _("Invalid routing mode!")); + return false; + } + free(mode); + } else + routing_mode = RMODE_ROUTER; + + 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")); +#endif - hint.ai_socktype = SOCK_DGRAM; - hint.ai_protocol = IPPROTO_UDP; + 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); + } - if((err = getaddrinfo(NULL, myport, &hint, &ai)) || !ai) - { - syslog(LOG_ERR, _("System call `%s' failed: %s"), "getaddrinfo", gai_strerror(err)); - return -1; - } + get_config_bool(lookup_config(config_tree, "Hostnames"), &hostnames); - udp_sockets = 0; + /* Generate packet encryption key */ - for(aip = ai; aip; aip = aip->ai_next) - { - if((sock = setup_vpn_in_socket((sockaddr_t *)aip->ai_addr)) < 0) - continue; + if(get_config_string + (lookup_config(myself->connection->config_tree, "Cipher"), &cipher)) { + if(!strcasecmp(cipher, "none")) { + myself->cipher = NULL; + } else { + myself->cipher = EVP_get_cipherbyname(cipher); + + if(!myself->cipher) { + logger(LOG_ERR, _("Unrecognized cipher type!")); + return false; + } + } + } 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 = 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; + } - udp_socket[udp_sockets++] = sock; - if(debug_lvl >= DEBUG_CONNECTIONS) - { - hostname = sockaddr2hostname((sockaddr_t *)aip->ai_addr); - syslog(LOG_NOTICE, _("Listening on %s/udp"), hostname); - free(hostname); } - } - freeaddrinfo(ai); + /* 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 { + myself->digest = EVP_get_digestbyname(digest); + + if(!myself->digest) { + logger(LOG_ERR, _("Unrecognized digest type!")); + return false; + } + } + } 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) { + logger(LOG_ERR, _("MAC length exceeds size of digest!")); + return false; + } else if(myself->maclength < 0) { + logger(LOG_ERR, _("Bogus MAC length!")); + return false; + } + } + } 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 > 11) { + logger(LOG_ERR, _("Bogus compression level!")); + return false; + } + } else + myself->compression = 0; + + myself->connection->outcompression = 0; + + /* Done */ + + myself->nexthop = myself; + myself->via = myself; + myself->status.active = true; + myself->status.reachable = true; + node_add(myself); + + graph(); + + /* Open device */ + + if(!setup_device()) + return false; + + /* Run tinc-up script to further initialize the tap interface */ + 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; + + execute_script("tinc-up", envp); + + for(i = 0; i < 5; i++) + free(envp[i]); + + /* 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; - syslog(LOG_NOTICE, _("Ready")); -cp - return 0; + 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) + continue; + + ifdebug(CONNECTIONS) { + hostname = sockaddr2hostname((sockaddr_t *) aip->ai_addr); + logger(LOG_NOTICE, _("Listening on %s"), hostname); + free(hostname); + } + + listen_socket[listen_sockets].sa.sa = *aip->ai_addr; + listen_sockets++; + } + + freeaddrinfo(ai); + + if(listen_sockets) + logger(LOG_NOTICE, _("Ready")); + else { + logger(LOG_ERR, _("Unable to create any listening socket!")); + return false; + } + + return true; } /* setup all initial network connections */ -int setup_network_connections(void) +bool setup_network_connections(void) { -cp - init_connections(); - init_subnets(); - init_nodes(); - init_edges(); - init_events(); - - if(get_config_int(lookup_config(config_tree, "PingTimeout"), &pingtimeout)) - { - if(pingtimeout < 1) - { - pingtimeout = 86400; - } - } - else - pingtimeout = 60; - - if(setup_device() < 0) - return -1; - - /* Run tinc-up script to further initialize the tap interface */ - execute_script("tinc-up"); - - if(setup_myself() < 0) - return -1; - - try_outgoing_connections(); -cp - return 0; + cp(); + + now = time(NULL); + + 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; + } + } else + pingtimeout = 60; + + if(!setup_myself()) + return false; + + try_outgoing_connections(); + + return true; } /* @@ -568,36 +549,49 @@ cp */ void close_network_connections(void) { - avl_node_t *node, *next; - connection_t *c; - int i; -cp - for(node = connection_tree->head; node; node = next) - { - next = node->next; - c = (connection_t *)node->data; - if(c->outgoing) - free(c->outgoing->name), free(c->outgoing); - terminate_connection(c, 0); - } - - if(myself && myself->connection) - terminate_connection(myself->connection, 0); - - for(i = 0; i < udp_sockets; i++) - close(udp_socket[i]); - for(i = 0; i < tcp_sockets; i++) - close(tcp_socket[i]); - - exit_events(); - exit_edges(); - exit_subnets(); - exit_nodes(); - exit_connections(); - - execute_script("tinc-down"); - - close_device(); -cp - return; + avl_node_t *node, *next; + connection_t *c; + char *envp[5]; + int i; + + cp(); + + 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; + terminate_connection(c, false); + } + + if(myself && myself->connection) + terminate_connection(myself->connection, false); + + 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; + + execute_script("tinc-down", envp); + + for(i = 0; i < 4; i++) + free(envp[i]); + + close_device(); + + return; }