/*
net_setup.c -- Setup.
- Copyright (C) 1998-2003 Ivo Timmermans <ivo@o2w.nl>,
- 2000-2003 Guus Sliepen <guus@sliepen.eu.org>
+ Copyright (C) 1998-2005 Ivo Timmermans,
+ 2000-2009 Guus Sliepen <guus@tinc-vpn.org>
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
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 1.1.2.44 2003/08/28 21:05:10 guus Exp $
+ $Id$
*/
#include "system.h"
#include <openssl/pem.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
#include "avl_tree.h"
#include "conf.h"
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;
}
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 */
/* 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;
+ 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
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(!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;
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);
- EVP_DecryptInit_ex(&packet_ctx, myself->cipher, NULL, myself->key, myself->key + myself->cipher->key_len);
- }
-
/* 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;
myself->nexthop = myself;
myself->via = myself;
- myself->status.active = true;
myself->status.reachable = true;
node_add(myself);
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);
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++;
}
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;
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]);
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