2002-02-18 16:25:19 +00:00
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/*
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net_setup.c -- Setup.
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2006-04-26 13:52:58 +00:00
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Copyright (C) 1998-2005 Ivo Timmermans,
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2008-12-22 20:35:45 +00:00
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2000-2008 Guus Sliepen <guus@tinc-vpn.org>
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2002-02-18 16:25:19 +00:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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2004-03-21 14:21:22 +00:00
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$Id$
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2002-02-18 16:25:19 +00:00
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*/
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2003-07-17 15:06:27 +00:00
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#include "system.h"
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2002-02-18 16:25:19 +00:00
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#include <openssl/pem.h>
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#include <openssl/rsa.h>
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#include <openssl/rand.h>
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2003-10-11 12:16:13 +00:00
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#include <openssl/err.h>
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#include <openssl/evp.h>
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2002-02-18 16:25:19 +00:00
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2003-07-17 15:06:27 +00:00
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#include "avl_tree.h"
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2002-02-18 16:25:19 +00:00
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#include "conf.h"
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#include "connection.h"
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2003-07-17 15:06:27 +00:00
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#include "device.h"
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#include "event.h"
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#include "graph.h"
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#include "logger.h"
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2002-02-18 16:25:19 +00:00
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#include "net.h"
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#include "netutl.h"
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#include "process.h"
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#include "protocol.h"
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#include "route.h"
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2003-07-17 15:06:27 +00:00
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#include "subnet.h"
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#include "utils.h"
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#include "xalloc.h"
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2002-02-18 16:25:19 +00:00
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char *myport;
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2003-07-22 20:55:21 +00:00
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bool read_rsa_public_key(connection_t *c)
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2002-02-18 16:25:19 +00:00
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{
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2002-09-09 21:25:28 +00:00
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FILE *fp;
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char *fname;
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char *key;
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cp();
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2003-03-14 09:43:10 +00:00
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if(!c->rsa_key) {
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2002-09-09 21:25:28 +00:00
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c->rsa_key = RSA_new();
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2003-03-28 13:41:49 +00:00
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// RSA_blinding_on(c->rsa_key, NULL);
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2003-03-14 09:43:10 +00:00
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}
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2002-09-09 21:25:28 +00:00
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/* First, check for simple PublicKey statement */
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if(get_config_string(lookup_config(c->config_tree, "PublicKey"), &key)) {
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BN_hex2bn(&c->rsa_key->n, key);
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BN_hex2bn(&c->rsa_key->e, "FFFF");
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free(key);
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2003-07-22 20:55:21 +00:00
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return true;
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2002-09-09 21:25:28 +00:00
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}
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/* Else, check for PublicKeyFile statement and read it */
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2003-07-22 20:55:21 +00:00
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if(get_config_string(lookup_config(c->config_tree, "PublicKeyFile"), &fname)) {
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fp = fopen(fname, "r");
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2002-09-09 21:25:28 +00:00
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2003-07-22 20:55:21 +00:00
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if(!fp) {
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logger(LOG_ERR, _("Error reading RSA public key file `%s': %s"),
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fname, strerror(errno));
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2002-09-09 21:25:28 +00:00
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free(fname);
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2003-07-22 20:55:21 +00:00
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return false;
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}
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2002-09-09 21:25:28 +00:00
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2003-07-22 20:55:21 +00:00
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free(fname);
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c->rsa_key = PEM_read_RSAPublicKey(fp, &c->rsa_key, NULL, NULL);
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fclose(fp);
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2002-09-09 21:25:28 +00:00
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2003-07-22 20:55:21 +00:00
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if(c->rsa_key)
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return true; /* Woohoo. */
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2002-09-09 21:25:28 +00:00
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2003-07-22 20:55:21 +00:00
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/* If it fails, try PEM_read_RSA_PUBKEY. */
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fp = fopen(fname, "r");
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2002-09-09 21:25:28 +00:00
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2003-07-22 20:55:21 +00:00
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if(!fp) {
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logger(LOG_ERR, _("Error reading RSA public key file `%s': %s"),
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fname, strerror(errno));
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2002-09-09 21:25:28 +00:00
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free(fname);
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2003-07-22 20:55:21 +00:00
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return false;
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}
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2002-09-09 21:25:28 +00:00
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2003-07-22 20:55:21 +00:00
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free(fname);
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c->rsa_key = PEM_read_RSA_PUBKEY(fp, &c->rsa_key, NULL, NULL);
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fclose(fp);
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2002-09-09 21:25:28 +00:00
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2003-07-22 20:55:21 +00:00
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if(c->rsa_key) {
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// RSA_blinding_on(c->rsa_key, NULL);
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return true;
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2002-09-09 21:25:28 +00:00
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}
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2003-07-22 20:55:21 +00:00
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logger(LOG_ERR, _("Reading RSA public key file `%s' failed: %s"),
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fname, strerror(errno));
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return false;
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2002-09-09 21:25:28 +00:00
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}
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/* Else, check if a harnessed public key is in the config file */
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asprintf(&fname, "%s/hosts/%s", confbase, c->name);
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fp = fopen(fname, "r");
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if(fp) {
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c->rsa_key = PEM_read_RSAPublicKey(fp, &c->rsa_key, NULL, NULL);
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fclose(fp);
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}
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free(fname);
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if(c->rsa_key)
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2003-07-22 20:55:21 +00:00
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return true;
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2002-09-09 21:25:28 +00:00
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/* Try again with PEM_read_RSA_PUBKEY. */
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asprintf(&fname, "%s/hosts/%s", confbase, c->name);
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fp = fopen(fname, "r");
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if(fp) {
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c->rsa_key = PEM_read_RSA_PUBKEY(fp, &c->rsa_key, NULL, NULL);
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2003-03-28 13:41:49 +00:00
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// RSA_blinding_on(c->rsa_key, NULL);
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2002-09-09 21:25:28 +00:00
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fclose(fp);
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}
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free(fname);
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if(c->rsa_key)
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2003-07-22 20:55:21 +00:00
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return true;
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2002-09-09 21:25:28 +00:00
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2003-07-12 17:41:48 +00:00
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logger(LOG_ERR, _("No public key for %s specified!"), c->name);
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2002-09-09 21:25:28 +00:00
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2003-07-22 20:55:21 +00:00
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return false;
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2002-02-18 16:25:19 +00:00
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}
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2003-07-22 20:55:21 +00:00
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bool read_rsa_private_key(void)
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2002-02-18 16:25:19 +00:00
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{
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2002-09-09 21:25:28 +00:00
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FILE *fp;
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2004-03-15 18:15:02 +00:00
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char *fname, *key, *pubkey;
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2003-08-08 22:11:54 +00:00
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struct stat s;
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2002-09-09 21:25:28 +00:00
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cp();
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if(get_config_string(lookup_config(config_tree, "PrivateKey"), &key)) {
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2004-03-15 18:15:02 +00:00
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if(!get_config_string(lookup_config(myself->connection->config_tree, "PublicKey"), &pubkey)) {
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logger(LOG_ERR, _("PrivateKey used but no PublicKey found!"));
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return false;
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}
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2002-09-09 21:25:28 +00:00
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myself->connection->rsa_key = RSA_new();
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2003-03-28 13:41:49 +00:00
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// RSA_blinding_on(myself->connection->rsa_key, NULL);
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2002-09-09 21:25:28 +00:00
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BN_hex2bn(&myself->connection->rsa_key->d, key);
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2004-03-15 18:15:02 +00:00
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BN_hex2bn(&myself->connection->rsa_key->n, pubkey);
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2002-09-09 21:25:28 +00:00
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BN_hex2bn(&myself->connection->rsa_key->e, "FFFF");
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free(key);
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2004-03-15 18:15:02 +00:00
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free(pubkey);
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2003-07-22 20:55:21 +00:00
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return true;
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2002-09-09 21:25:28 +00:00
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}
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if(!get_config_string(lookup_config(config_tree, "PrivateKeyFile"), &fname))
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asprintf(&fname, "%s/rsa_key.priv", confbase);
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2003-08-08 22:11:54 +00:00
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fp = fopen(fname, "r");
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2002-09-09 21:25:28 +00:00
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2003-08-08 22:11:54 +00:00
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if(!fp) {
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logger(LOG_ERR, _("Error reading RSA private key file `%s': %s"),
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fname, strerror(errno));
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free(fname);
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return false;
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}
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2002-09-09 21:25:28 +00:00
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2003-08-08 22:11:54 +00:00
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#if !defined(HAVE_MINGW) && !defined(HAVE_CYGWIN)
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if(fstat(fileno(fp), &s)) {
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logger(LOG_ERR, _("Could not stat RSA private key file `%s': %s'"),
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fname, strerror(errno));
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2002-09-09 21:25:28 +00:00
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free(fname);
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2003-08-08 22:11:54 +00:00
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return false;
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}
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2002-09-09 21:25:28 +00:00
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2003-08-14 14:21:35 +00:00
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if(s.st_mode & ~0100700)
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2003-08-08 22:11:54 +00:00
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logger(LOG_WARNING, _("Warning: insecure file permissions for RSA private key file `%s'!"), fname);
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#endif
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2002-09-09 21:25:28 +00:00
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2003-08-08 22:11:54 +00:00
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myself->connection->rsa_key = PEM_read_RSAPrivateKey(fp, NULL, NULL, NULL);
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fclose(fp);
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if(!myself->connection->rsa_key) {
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logger(LOG_ERR, _("Reading RSA private key file `%s' failed: %s"),
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fname, strerror(errno));
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free(fname);
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return false;
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2002-09-09 21:25:28 +00:00
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}
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free(fname);
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2003-08-08 22:11:54 +00:00
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return true;
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2002-02-18 16:25:19 +00:00
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}
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/*
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Configure node_t myself and set up the local sockets (listen only)
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*/
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2003-07-22 20:55:21 +00:00
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bool setup_myself(void)
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2002-02-18 16:25:19 +00:00
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{
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2002-09-09 21:25:28 +00:00
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config_t *cfg;
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subnet_t *subnet;
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char *name, *hostname, *mode, *afname, *cipher, *digest;
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char *address = NULL;
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2003-07-22 21:13:23 +00:00
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char *envp[5];
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2003-07-30 11:50:45 +00:00
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struct addrinfo *ai, *aip, hint = {0};
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2003-07-22 20:55:21 +00:00
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bool choice;
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2003-07-22 21:13:23 +00:00
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int i, err;
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2002-09-09 21:25:28 +00:00
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cp();
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myself = new_node();
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myself->connection = new_connection();
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init_configuration(&myself->connection->config_tree);
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asprintf(&myself->hostname, _("MYSELF"));
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asprintf(&myself->connection->hostname, _("MYSELF"));
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myself->connection->options = 0;
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myself->connection->protocol_version = PROT_CURRENT;
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if(!get_config_string(lookup_config(config_tree, "Name"), &name)) { /* Not acceptable */
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2003-07-12 17:41:48 +00:00
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logger(LOG_ERR, _("Name for tinc daemon required!"));
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2003-07-22 20:55:21 +00:00
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return false;
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2002-09-09 21:25:28 +00:00
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}
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2003-07-22 20:55:21 +00:00
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if(!check_id(name)) {
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2003-07-12 17:41:48 +00:00
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logger(LOG_ERR, _("Invalid name for myself!"));
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2002-09-09 21:25:28 +00:00
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free(name);
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2003-07-22 20:55:21 +00:00
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return false;
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2002-09-09 21:25:28 +00:00
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}
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myself->name = name;
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myself->connection->name = xstrdup(name);
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2003-07-22 20:55:21 +00:00
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if(!read_connection_config(myself->connection)) {
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2003-07-12 17:41:48 +00:00
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logger(LOG_ERR, _("Cannot open host configuration file for myself!"));
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2003-07-22 20:55:21 +00:00
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return false;
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2002-09-09 21:25:28 +00:00
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}
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2004-03-15 18:15:02 +00:00
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if(!read_rsa_private_key())
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2003-07-22 20:55:21 +00:00
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return false;
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2002-09-09 21:25:28 +00:00
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2004-03-15 18:15:02 +00:00
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if(!get_config_string(lookup_config(myself->connection->config_tree, "Port"), &myport))
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2002-09-09 21:25:28 +00:00
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asprintf(&myport, "655");
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/* Read in all the subnets specified in the host configuration file */
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cfg = lookup_config(myself->connection->config_tree, "Subnet");
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while(cfg) {
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if(!get_config_subnet(cfg, &subnet))
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2003-07-22 20:55:21 +00:00
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return false;
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2002-09-09 21:25:28 +00:00
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subnet_add(myself, subnet);
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cfg = lookup_config_next(myself->connection->config_tree, cfg);
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}
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/* Check some options */
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2003-12-20 19:47:53 +00:00
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if(get_config_bool(lookup_config(config_tree, "IndirectData"), &choice) && choice)
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myself->options |= OPTION_INDIRECT;
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2002-09-09 21:25:28 +00:00
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2003-12-20 19:47:53 +00:00
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if(get_config_bool(lookup_config(config_tree, "TCPOnly"), &choice) && choice)
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myself->options |= OPTION_TCPONLY;
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2002-09-09 21:25:28 +00:00
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2003-12-20 19:47:53 +00:00
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if(get_config_bool(lookup_config(myself->connection->config_tree, "IndirectData"), &choice) && choice)
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myself->options |= OPTION_INDIRECT;
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2002-09-09 21:25:28 +00:00
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2003-12-20 19:47:53 +00:00
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if(get_config_bool(lookup_config(myself->connection->config_tree, "TCPOnly"), &choice) && choice)
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myself->options |= OPTION_TCPONLY;
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2008-12-22 20:35:45 +00:00
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if(!get_config_bool(lookup_config(myself->connection->config_tree, "PMTUDiscovery"), &choice) || choice)
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2003-12-20 21:25:17 +00:00
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|
|
myself->options |= OPTION_PMTU_DISCOVERY;
|
2002-09-09 21:25:28 +00:00
|
|
|
|
|
|
|
if(myself->options & OPTION_TCPONLY)
|
|
|
|
myself->options |= OPTION_INDIRECT;
|
|
|
|
|
2003-11-17 15:30:18 +00:00
|
|
|
get_config_bool(lookup_config(config_tree, "TunnelServer"), &tunnelserver);
|
|
|
|
|
2002-09-09 21:25:28 +00:00
|
|
|
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 {
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_ERR, _("Invalid routing mode!"));
|
2003-07-22 20:55:21 +00:00
|
|
|
return false;
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
free(mode);
|
|
|
|
} else
|
|
|
|
routing_mode = RMODE_ROUTER;
|
|
|
|
|
2003-07-22 20:55:21 +00:00
|
|
|
get_config_bool(lookup_config(config_tree, "PriorityInheritance"), &priorityinheritance);
|
|
|
|
|
2002-03-01 15:14:29 +00:00
|
|
|
#if !defined(SOL_IP) || !defined(IP_TOS)
|
2002-09-09 21:25:28 +00:00
|
|
|
if(priorityinheritance)
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_WARNING, _("PriorityInheritance not supported on this platform"));
|
2002-03-01 15:14:29 +00:00
|
|
|
#endif
|
2002-03-01 12:25:58 +00:00
|
|
|
|
2002-09-09 21:25:28 +00:00
|
|
|
if(!get_config_int(lookup_config(config_tree, "MACExpire"), &macexpire))
|
|
|
|
macexpire = 600;
|
|
|
|
|
2003-12-07 14:28:39 +00:00
|
|
|
if(get_config_int(lookup_config(config_tree, "MaxTimeout"), &maxtimeout)) {
|
2002-09-09 21:25:28 +00:00
|
|
|
if(maxtimeout <= 0) {
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_ERR, _("Bogus maximum timeout!"));
|
2003-07-22 20:55:21 +00:00
|
|
|
return false;
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
} 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 {
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_ERR, _("Invalid address family!"));
|
2003-07-22 20:55:21 +00:00
|
|
|
return false;
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
free(afname);
|
2003-06-25 20:52:59 +00:00
|
|
|
}
|
2002-09-09 21:25:28 +00:00
|
|
|
|
|
|
|
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)) {
|
|
|
|
if(!strcasecmp(cipher, "none")) {
|
|
|
|
myself->cipher = NULL;
|
|
|
|
} else {
|
|
|
|
myself->cipher = EVP_get_cipherbyname(cipher);
|
|
|
|
|
|
|
|
if(!myself->cipher) {
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_ERR, _("Unrecognized cipher type!"));
|
2003-07-22 20:55:21 +00:00
|
|
|
return false;
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
} 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();
|
|
|
|
|
2003-08-28 21:05:11 +00:00
|
|
|
myself->key = xmalloc(myself->keylength);
|
2006-03-19 13:06:21 +00:00
|
|
|
RAND_pseudo_bytes((unsigned char *)myself->key, myself->keylength);
|
2002-09-09 21:25:28 +00:00
|
|
|
|
|
|
|
if(!get_config_int(lookup_config(config_tree, "KeyExpire"), &keylifetime))
|
|
|
|
keylifetime = 3600;
|
|
|
|
|
|
|
|
keyexpires = now + keylifetime;
|
2003-03-28 13:41:49 +00:00
|
|
|
|
2003-07-23 22:17:31 +00:00
|
|
|
if(myself->cipher) {
|
|
|
|
EVP_CIPHER_CTX_init(&packet_ctx);
|
2006-03-19 13:06:21 +00:00
|
|
|
if(!EVP_DecryptInit_ex(&packet_ctx, myself->cipher, NULL, (unsigned char *)myself->key, (unsigned char *)myself->key + myself->cipher->key_len)) {
|
2003-10-11 12:16:13 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2003-07-23 22:17:31 +00:00
|
|
|
}
|
2002-09-09 21:25:28 +00:00
|
|
|
|
|
|
|
/* 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) {
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_ERR, _("Unrecognized digest type!"));
|
2003-07-22 20:55:21 +00:00
|
|
|
return false;
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
myself->digest = EVP_sha1();
|
|
|
|
|
|
|
|
myself->connection->outdigest = EVP_sha1();
|
|
|
|
|
2003-07-22 21:13:23 +00:00
|
|
|
if(get_config_int(lookup_config(myself->connection->config_tree, "MACLength"),
|
2002-09-09 21:25:28 +00:00
|
|
|
&myself->maclength)) {
|
|
|
|
if(myself->digest) {
|
|
|
|
if(myself->maclength > myself->digest->md_size) {
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_ERR, _("MAC length exceeds size of digest!"));
|
2003-07-22 20:55:21 +00:00
|
|
|
return false;
|
2002-09-09 21:25:28 +00:00
|
|
|
} else if(myself->maclength < 0) {
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_ERR, _("Bogus MAC length!"));
|
2003-07-22 20:55:21 +00:00
|
|
|
return false;
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
myself->maclength = 4;
|
|
|
|
|
|
|
|
myself->connection->outmaclength = 0;
|
|
|
|
|
|
|
|
/* Compression */
|
|
|
|
|
2003-07-22 21:13:23 +00:00
|
|
|
if(get_config_int(lookup_config(myself->connection->config_tree, "Compression"),
|
2002-09-09 21:25:28 +00:00
|
|
|
&myself->compression)) {
|
2003-05-06 21:13:18 +00:00
|
|
|
if(myself->compression < 0 || myself->compression > 11) {
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_ERR, _("Bogus compression level!"));
|
2003-07-22 20:55:21 +00:00
|
|
|
return false;
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
} else
|
|
|
|
myself->compression = 0;
|
|
|
|
|
|
|
|
myself->connection->outcompression = 0;
|
|
|
|
|
|
|
|
/* Done */
|
|
|
|
|
|
|
|
myself->nexthop = myself;
|
|
|
|
myself->via = myself;
|
2003-07-22 20:55:21 +00:00
|
|
|
myself->status.reachable = true;
|
2002-09-09 21:25:28 +00:00
|
|
|
node_add(myself);
|
|
|
|
|
|
|
|
graph();
|
|
|
|
|
2003-07-22 21:13:23 +00:00
|
|
|
/* 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]);
|
|
|
|
|
2004-12-01 20:06:05 +00:00
|
|
|
/* Run subnet-up scripts for our own subnets */
|
|
|
|
|
|
|
|
subnet_update(myself, NULL, true);
|
|
|
|
|
2002-09-09 21:25:28 +00:00
|
|
|
/* Open sockets */
|
|
|
|
|
|
|
|
get_config_string(lookup_config(config_tree, "BindToAddress"), &address);
|
|
|
|
|
2003-07-30 11:50:45 +00:00
|
|
|
hint.ai_family = addressfamily;
|
|
|
|
hint.ai_socktype = SOCK_STREAM;
|
|
|
|
hint.ai_protocol = IPPROTO_TCP;
|
|
|
|
hint.ai_flags = AI_PASSIVE;
|
2002-09-09 21:25:28 +00:00
|
|
|
|
|
|
|
err = getaddrinfo(address, myport, &hint, &ai);
|
|
|
|
|
|
|
|
if(err || !ai) {
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_ERR, _("System call `%s' failed: %s"), "getaddrinfo",
|
2002-09-09 21:25:28 +00:00
|
|
|
gai_strerror(err));
|
2003-07-22 20:55:21 +00:00
|
|
|
return false;
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
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;
|
|
|
|
|
2003-07-12 17:41:48 +00:00
|
|
|
ifdebug(CONNECTIONS) {
|
2002-09-09 21:25:28 +00:00
|
|
|
hostname = sockaddr2hostname((sockaddr_t *) aip->ai_addr);
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_NOTICE, _("Listening on %s"), hostname);
|
2002-09-09 21:25:28 +00:00
|
|
|
free(hostname);
|
|
|
|
}
|
|
|
|
|
2006-06-11 18:53:27 +00:00
|
|
|
memcpy(&listen_socket[listen_sockets].sa, aip->ai_addr, aip->ai_addrlen);
|
2002-09-09 21:25:28 +00:00
|
|
|
listen_sockets++;
|
2002-02-26 23:26:41 +00:00
|
|
|
}
|
2002-03-01 13:18:54 +00:00
|
|
|
|
2002-09-09 21:25:28 +00:00
|
|
|
freeaddrinfo(ai);
|
|
|
|
|
|
|
|
if(listen_sockets)
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_NOTICE, _("Ready"));
|
2002-09-09 21:25:28 +00:00
|
|
|
else {
|
2003-07-12 17:41:48 +00:00
|
|
|
logger(LOG_ERR, _("Unable to create any listening socket!"));
|
2003-07-22 20:55:21 +00:00
|
|
|
return false;
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
|
2003-07-22 20:55:21 +00:00
|
|
|
return true;
|
2002-02-18 16:25:19 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
setup all initial network connections
|
|
|
|
*/
|
2003-07-22 20:55:21 +00:00
|
|
|
bool setup_network_connections(void)
|
2002-02-18 16:25:19 +00:00
|
|
|
{
|
2002-09-09 21:25:28 +00:00
|
|
|
cp();
|
|
|
|
|
|
|
|
now = time(NULL);
|
|
|
|
|
2006-11-11 22:44:15 +00:00
|
|
|
init_events();
|
2002-09-09 21:25:28 +00:00
|
|
|
init_connections();
|
|
|
|
init_subnets();
|
|
|
|
init_nodes();
|
|
|
|
init_edges();
|
|
|
|
init_requests();
|
|
|
|
|
2006-01-19 17:13:18 +00:00
|
|
|
if(get_config_int(lookup_config(config_tree, "PingInterval"), &pinginterval)) {
|
|
|
|
if(pinginterval < 1) {
|
|
|
|
pinginterval = 86400;
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
} else
|
2006-01-19 17:13:18 +00:00
|
|
|
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 = 4 * MTU;
|
2002-09-09 21:25:28 +00:00
|
|
|
|
2003-07-22 20:55:21 +00:00
|
|
|
if(!setup_myself())
|
|
|
|
return false;
|
2003-01-14 12:53:59 +00:00
|
|
|
|
2002-09-09 21:25:28 +00:00
|
|
|
try_outgoing_connections();
|
|
|
|
|
2003-07-22 20:55:21 +00:00
|
|
|
return true;
|
2002-02-18 16:25:19 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
close all open network connections
|
|
|
|
*/
|
|
|
|
void close_network_connections(void)
|
|
|
|
{
|
2002-09-09 21:25:28 +00:00
|
|
|
avl_node_t *node, *next;
|
|
|
|
connection_t *c;
|
2003-01-14 12:53:59 +00:00
|
|
|
char *envp[5];
|
2002-09-09 21:25:28 +00:00
|
|
|
int i;
|
|
|
|
|
|
|
|
cp();
|
|
|
|
|
|
|
|
for(node = connection_tree->head; node; node = next) {
|
|
|
|
next = node->next;
|
2003-08-28 21:05:11 +00:00
|
|
|
c = node->data;
|
2002-09-09 21:25:28 +00:00
|
|
|
|
2006-11-29 16:57:46 +00:00
|
|
|
if(c->outgoing) {
|
|
|
|
if(c->outgoing->ai)
|
|
|
|
freeaddrinfo(c->outgoing->ai);
|
|
|
|
free(c->outgoing->name);
|
|
|
|
free(c->outgoing);
|
|
|
|
c->outgoing = NULL;
|
|
|
|
}
|
|
|
|
|
2003-07-22 20:55:21 +00:00
|
|
|
terminate_connection(c, false);
|
2002-09-09 21:25:28 +00:00
|
|
|
}
|
|
|
|
|
2004-12-01 20:06:05 +00:00
|
|
|
if(myself && myself->connection) {
|
|
|
|
subnet_update(myself, NULL, false);
|
2003-07-22 20:55:21 +00:00
|
|
|
terminate_connection(myself->connection, false);
|
2004-12-01 20:06:05 +00:00
|
|
|
}
|
2002-09-09 21:25:28 +00:00
|
|
|
|
|
|
|
for(i = 0; i < listen_sockets; i++) {
|
|
|
|
close(listen_socket[i].tcp);
|
|
|
|
close(listen_socket[i].udp);
|
|
|
|
}
|
|
|
|
|
2006-02-06 12:30:51 +00:00
|
|
|
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;
|
|
|
|
|
2002-09-09 21:25:28 +00:00
|
|
|
exit_requests();
|
|
|
|
exit_edges();
|
|
|
|
exit_subnets();
|
|
|
|
exit_nodes();
|
|
|
|
exit_connections();
|
2006-11-11 22:44:15 +00:00
|
|
|
exit_events();
|
2002-09-09 21:25:28 +00:00
|
|
|
|
|
|
|
execute_script("tinc-down", envp);
|
|
|
|
|
|
|
|
for(i = 0; i < 4; i++)
|
|
|
|
free(envp[i]);
|
|
|
|
|
|
|
|
close_device();
|
|
|
|
|
|
|
|
return;
|
2002-02-18 16:25:19 +00:00
|
|
|
}
|