/*
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,
+ 2000-2010 Guus Sliepen <guus@tinc-vpn.org>
+ 2006 Scott Lamb <slamb@slamb.org>
+ 2010 Brandon Black <blblack@gmail.com>
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
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- 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 1.1.2.47 2003/12/07 14:28:39 guus Exp $
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#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 "splay_tree.h"
+#include "cipher.h"
#include "conf.h"
#include "connection.h"
+#include "control.h"
#include "device.h"
-#include "event.h"
+#include "digest.h"
+#include "ecdsa.h"
#include "graph.h"
#include "logger.h"
#include "net.h"
#include "process.h"
#include "protocol.h"
#include "route.h"
+#include "rsa.h"
#include "subnet.h"
#include "utils.h"
#include "xalloc.h"
char *myport;
+static struct event device_ev;
+
+bool node_read_ecdsa_public_key(node_t *n) {
+ if(ecdsa_active(&n->ecdsa))
+ return true;
-bool read_rsa_public_key(connection_t *c)
-{
+ splay_tree_t *config_tree;
FILE *fp;
char *fname;
- char *key;
+ char *p;
+ bool result = false;
- cp();
+ xasprintf(&fname, "%s/hosts/%s", confbase, n->name);
- if(!c->rsa_key) {
- c->rsa_key = RSA_new();
-// RSA_blinding_on(c->rsa_key, NULL);
- }
+ init_configuration(&config_tree);
+ if(!read_config_file(config_tree, fname))
+ goto exit;
- /* First, check for simple PublicKey statement */
+ /* First, check for simple ECDSAPublicKey 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;
+ if(get_config_string(lookup_config(config_tree, "ECDSAPublicKey"), &p)) {
+ result = ecdsa_set_base64_public_key(&n->ecdsa, p);
+ free(p);
+ goto exit;
}
- /* Else, check for PublicKeyFile statement and read it */
+ /* Else, check for ECDSAPublicKeyFile statement and read it */
- if(get_config_string(lookup_config(c->config_tree, "PublicKeyFile"), &fname)) {
- fp = fopen(fname, "r");
+ free(fname);
- if(!fp) {
- logger(LOG_ERR, _("Error reading RSA public key file `%s': %s"),
- fname, strerror(errno));
- free(fname);
- return false;
- }
+ if(!get_config_string(lookup_config(config_tree, "ECDSAPublicKeyFile"), &fname))
+ xasprintf(&fname, "%s/hosts/%s", confbase, n->name);
- free(fname);
- c->rsa_key = PEM_read_RSAPublicKey(fp, &c->rsa_key, NULL, NULL);
- fclose(fp);
+ fp = fopen(fname, "r");
- if(c->rsa_key)
- return true; /* Woohoo. */
+ if(!fp) {
+ logger(LOG_ERR, "Error reading ECDSA public key file `%s': %s", fname, strerror(errno));
+ goto exit;
+ }
- /* If it fails, try PEM_read_RSA_PUBKEY. */
- fp = fopen(fname, "r");
+ result = ecdsa_read_pem_public_key(&n->ecdsa, fp);
+ fclose(fp);
- if(!fp) {
- logger(LOG_ERR, _("Error reading RSA public key file `%s': %s"),
- fname, strerror(errno));
- free(fname);
- return false;
- }
+exit:
+ exit_configuration(&config_tree);
+ free(fname);
+ return result;
+}
- free(fname);
- c->rsa_key = PEM_read_RSA_PUBKEY(fp, &c->rsa_key, NULL, NULL);
- fclose(fp);
+bool read_ecdsa_public_key(connection_t *c) {
+ FILE *fp;
+ char *fname;
+ char *p;
+ bool result;
- if(c->rsa_key) {
-// RSA_blinding_on(c->rsa_key, NULL);
- return true;
- }
+ /* First, check for simple ECDSAPublicKey statement */
+
+ if(get_config_string(lookup_config(c->config_tree, "ECDSAPublicKey"), &p)) {
+ result = ecdsa_set_base64_public_key(&c->ecdsa, p);
+ free(p);
+ return result;
+ }
+
+ /* Else, check for ECDSAPublicKeyFile statement and read it */
- logger(LOG_ERR, _("Reading RSA public key file `%s' failed: %s"),
+ if(!get_config_string(lookup_config(c->config_tree, "ECDSAPublicKeyFile"), &fname))
+ xasprintf(&fname, "%s/hosts/%s", confbase, c->name);
+
+ fp = fopen(fname, "r");
+
+ if(!fp) {
+ logger(LOG_ERR, "Error reading ECDSA public key file `%s': %s",
fname, strerror(errno));
+ free(fname);
return false;
}
- /* Else, check if a harnessed public key is in the config file */
+ result = ecdsa_read_pem_public_key(&c->ecdsa, fp);
+ fclose(fp);
+
+ if(!result)
+ logger(LOG_ERR, "Reading ECDSA public key file `%s' failed: %s", fname, strerror(errno));
+ free(fname);
+ return result;
+}
+
+bool read_rsa_public_key(connection_t *c) {
+ FILE *fp;
+ char *fname;
+ char *n;
+ bool result;
+
+ /* First, check for simple PublicKey statement */
+
+ if(get_config_string(lookup_config(c->config_tree, "PublicKey"), &n)) {
+ result = rsa_set_hex_public_key(&c->rsa, n, "FFFF");
+ free(n);
+ return result;
+ }
+
+ /* Else, check for PublicKeyFile statement and read it */
+
+ if(!get_config_string(lookup_config(c->config_tree, "PublicKeyFile"), &fname))
+ xasprintf(&fname, "%s/hosts/%s", confbase, c->name);
- 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);
+ if(!fp) {
+ logger(LOG_ERR, "Error reading RSA public key file `%s': %s",
+ fname, strerror(errno));
+ free(fname);
+ return false;
}
+ result = rsa_read_pem_public_key(&c->rsa, fp);
+ fclose(fp);
+
+ if(!result)
+ logger(LOG_ERR, "Reading RSA public key file `%s' failed: %s", fname, strerror(errno));
free(fname);
+ return result;
+}
- if(c->rsa_key)
- return true;
+static bool read_ecdsa_private_key(void) {
+ FILE *fp;
+ char *fname;
+ bool result;
+
+ /* Check for PrivateKeyFile statement and read it */
- /* Try again with PEM_read_RSA_PUBKEY. */
+ if(!get_config_string(lookup_config(config_tree, "ECDSAPrivateKeyFile"), &fname))
+ xasprintf(&fname, "%s/ecdsa_key.priv", confbase);
- 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);
+ if(!fp) {
+ logger(LOG_ERR, "Error reading ECDSA private key file `%s': %s",
+ fname, strerror(errno));
+ free(fname);
+ return false;
}
- free(fname);
+#if !defined(HAVE_MINGW) && !defined(HAVE_CYGWIN)
+ struct stat s;
- if(c->rsa_key)
- return true;
+ if(fstat(fileno(fp), &s)) {
+ logger(LOG_ERR, "Could not stat ECDSA private key file `%s': %s'", fname, strerror(errno));
+ free(fname);
+ return false;
+ }
- logger(LOG_ERR, _("No public key for %s specified!"), c->name);
+ if(s.st_mode & ~0100700)
+ logger(LOG_WARNING, "Warning: insecure file permissions for ECDSA private key file `%s'!", fname);
+#endif
+
+ result = ecdsa_read_pem_private_key(&myself->connection->ecdsa, fp);
+ fclose(fp);
- return false;
+ if(!result)
+ logger(LOG_ERR, "Reading ECDSA private key file `%s' failed: %s", fname, strerror(errno));
+ free(fname);
+ return result;
}
-bool read_rsa_private_key(void)
-{
+static bool read_rsa_private_key(void) {
FILE *fp;
- char *fname, *key;
- struct stat s;
+ char *fname;
+ char *n, *d;
+ bool result;
- cp();
+ /* First, check for simple PrivateKey statement */
- 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);
+ if(get_config_string(lookup_config(config_tree, "PrivateKey"), &d)) {
+ if(!get_config_string(lookup_config(config_tree, "PublicKey"), &n)) {
+ logger(LOG_ERR, "PrivateKey used but no PublicKey found!");
+ free(d);
+ return false;
+ }
+ result = rsa_set_hex_private_key(&myself->connection->rsa, n, "FFFF", d);
+ free(n);
+ free(d);
return true;
}
+ /* Else, check for PrivateKeyFile statement and read it */
+
if(!get_config_string(lookup_config(config_tree, "PrivateKeyFile"), &fname))
- asprintf(&fname, "%s/rsa_key.priv", confbase);
+ xasprintf(&fname, "%s/rsa_key.priv", confbase);
fp = fopen(fname, "r");
if(!fp) {
- logger(LOG_ERR, _("Error reading RSA private key file `%s': %s"),
+ 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)
+ struct stat s;
+
if(fstat(fileno(fp), &s)) {
- logger(LOG_ERR, _("Could not stat RSA private key file `%s': %s'"),
- fname, strerror(errno));
+ 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);
+ 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);
+ result = rsa_read_pem_private_key(&myself->connection->rsa, fp);
fclose(fp);
- if(!myself->connection->rsa_key) {
- logger(LOG_ERR, _("Reading RSA private key file `%s' failed: %s"),
- fname, strerror(errno));
+ if(!result)
+ logger(LOG_ERR, "Reading RSA private key file `%s' failed: %s", fname, strerror(errno));
+ free(fname);
+ return result;
+}
+
+static struct event keyexpire_event;
+
+static void keyexpire_handler(int fd, short events, void *data) {
+ regenerate_key();
+}
+
+void regenerate_key(void) {
+ if(timeout_initialized(&keyexpire_event)) {
+ ifdebug(STATUS) logger(LOG_INFO, "Expiring symmetric keys");
+ event_del(&keyexpire_event);
+ send_key_changed();
+ } else {
+ timeout_set(&keyexpire_event, keyexpire_handler, NULL);
+ }
+
+ event_add(&keyexpire_event, &(struct timeval){keylifetime, 0});
+}
+
+/*
+ Read Subnets from all host config files
+*/
+void load_all_subnets(void) {
+ DIR *dir;
+ struct dirent *ent;
+ char *dname;
+ char *fname;
+ splay_tree_t *config_tree;
+ config_t *cfg;
+ subnet_t *s, *s2;
+ node_t *n;
+ bool result;
+
+ xasprintf(&dname, "%s/hosts", confbase);
+ dir = opendir(dname);
+ if(!dir) {
+ logger(LOG_ERR, "Could not open %s: %s", dname, strerror(errno));
+ free(dname);
+ return;
+ }
+
+ while((ent = readdir(dir))) {
+ if(!check_id(ent->d_name))
+ continue;
+
+ n = lookup_node(ent->d_name);
+ #ifdef _DIRENT_HAVE_D_TYPE
+ //if(ent->d_type != DT_REG)
+ // continue;
+ #endif
+
+ xasprintf(&fname, "%s/hosts/%s", confbase, ent->d_name);
+ init_configuration(&config_tree);
+ result = read_config_file(config_tree, fname);
free(fname);
- return false;
+ if(!result)
+ continue;
+
+ if(!n) {
+ n = new_node();
+ n->name = xstrdup(ent->d_name);
+ node_add(n);
+ }
+
+ for(cfg = lookup_config(config_tree, "Subnet"); cfg; cfg = lookup_config_next(config_tree, cfg)) {
+ if(!get_config_subnet(cfg, &s))
+ continue;
+
+ if((s2 = lookup_subnet(n, s))) {
+ s2->expires = -1;
+ } else {
+ subnet_add(n, s);
+ }
+ }
+
+ exit_configuration(&config_tree);
}
- free(fname);
- return true;
+ closedir(dir);
}
/*
Configure node_t myself and set up the local sockets (listen only)
*/
-bool setup_myself(void)
-{
+static bool setup_myself(void) {
config_t *cfg;
subnet_t *subnet;
char *name, *hostname, *mode, *afname, *cipher, *digest;
+ char *fname = NULL;
char *address = NULL;
char *envp[5];
struct addrinfo *ai, *aip, hint = {0};
bool choice;
int i, err;
-
- cp();
+ int replaywin_int;
myself = new_node();
myself->connection = new_connection();
- init_configuration(&myself->connection->config_tree);
- asprintf(&myself->hostname, _("MYSELF"));
- asprintf(&myself->connection->hostname, _("MYSELF"));
+ myself->hostname = xstrdup("MYSELF");
+ myself->connection->hostname = xstrdup("MYSELF");
myself->connection->options = 0;
- myself->connection->protocol_version = PROT_CURRENT;
+ myself->connection->protocol_major = PROT_MAJOR;
+ myself->connection->protocol_minor = PROT_MINOR;
if(!get_config_string(lookup_config(config_tree, "Name"), &name)) { /* Not acceptable */
- logger(LOG_ERR, _("Name for tinc daemon required!"));
+ logger(LOG_ERR, "Name for tinc daemon required!");
return false;
}
if(!check_id(name)) {
- logger(LOG_ERR, _("Invalid name for myself!"));
+ logger(LOG_ERR, "Invalid name for myself!");
free(name);
return false;
}
myself->name = name;
myself->connection->name = xstrdup(name);
+ xasprintf(&fname, "%s/hosts/%s", confbase, name);
+ read_config_options(config_tree, name);
+ read_config_file(config_tree, fname);
+ free(fname);
- if(!read_rsa_private_key())
- return false;
+ get_config_bool(lookup_config(config_tree, "ExperimentalProtocol"), &experimental);
- if(!read_connection_config(myself->connection)) {
- logger(LOG_ERR, _("Cannot open host configuration file for myself!"));
+ if(experimental && !read_ecdsa_private_key())
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))
- asprintf(&myport, "655");
+ if(!get_config_string(lookup_config(config_tree, "Port"), &myport))
+ myport = xstrdup("655");
+
+ if(!atoi(myport)) {
+ struct addrinfo *ai = str2addrinfo("localhost", myport, SOCK_DGRAM);
+ sockaddr_t sa;
+ if(!ai || !ai->ai_addr)
+ return false;
+ free(myport);
+ memcpy(&sa, ai->ai_addr, ai->ai_addrlen);
+ sockaddr2str(&sa, NULL, &myport);
+ }
/* Read in all the subnets specified in the host configuration file */
- cfg = lookup_config(myself->connection->config_tree, "Subnet");
+ cfg = lookup_config(config_tree, "Subnet");
while(cfg) {
if(!get_config_subnet(cfg, &subnet))
subnet_add(myself, subnet);
- cfg = lookup_config_next(myself->connection->config_tree, cfg);
+ cfg = lookup_config_next(config_tree, cfg);
}
/* 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(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(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, "DirectOnly"), &directonly);
+ get_config_bool(lookup_config(config_tree, "StrictSubnets"), &strictsubnets);
get_config_bool(lookup_config(config_tree, "TunnelServer"), &tunnelserver);
+ strictsubnets |= tunnelserver;
if(get_config_string(lookup_config(config_tree, "Mode"), &mode)) {
if(!strcasecmp(mode, "router"))
else if(!strcasecmp(mode, "hub"))
routing_mode = RMODE_HUB;
else {
- logger(LOG_ERR, _("Invalid routing mode!"));
+ logger(LOG_ERR, "Invalid routing mode!");
return false;
}
free(mode);
- } else
- routing_mode = RMODE_ROUTER;
+ }
+
+ if(get_config_string(lookup_config(config_tree, "Forwarding"), &mode)) {
+ if(!strcasecmp(mode, "off"))
+ forwarding_mode = FMODE_OFF;
+ else if(!strcasecmp(mode, "internal"))
+ forwarding_mode = FMODE_INTERNAL;
+ else if(!strcasecmp(mode, "kernel"))
+ forwarding_mode = FMODE_KERNEL;
+ else {
+ logger(LOG_ERR, "Invalid forwarding mode!");
+ return false;
+ }
+ free(mode);
+ }
+
+ choice = true;
+ get_config_bool(lookup_config(config_tree, "PMTUDiscovery"), &choice);
+ if(choice)
+ myself->options |= OPTION_PMTU_DISCOVERY;
+
+ choice = true;
+ get_config_bool(lookup_config(config_tree, "ClampMSS"), &choice);
+ if(choice)
+ myself->options |= OPTION_CLAMP_MSS;
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))
if(get_config_int(lookup_config(config_tree, "MaxTimeout"), &maxtimeout)) {
if(maxtimeout <= 0) {
- logger(LOG_ERR, _("Bogus maximum timeout!"));
+ logger(LOG_ERR, "Bogus maximum timeout!");
return false;
}
} else
maxtimeout = 900;
+ if(get_config_int(lookup_config(config_tree, "UDPRcvBuf"), &udp_rcvbuf)) {
+ if(udp_rcvbuf <= 0) {
+ logger(LOG_ERR, "UDPRcvBuf cannot be negative!");
+ return false;
+ }
+ }
+
+ if(get_config_int(lookup_config(config_tree, "UDPSndBuf"), &udp_sndbuf)) {
+ if(udp_sndbuf <= 0) {
+ logger(LOG_ERR, "UDPSndBuf cannot be negative!");
+ return false;
+ }
+ }
+
+ if(get_config_int(lookup_config(config_tree, "ReplayWindow"), &replaywin_int)) {
+ if(replaywin_int < 0) {
+ logger(LOG_ERR, "ReplayWindow cannot be negative!");
+ return false;
+ }
+ replaywin = (unsigned)replaywin_int;
+ }
+
if(get_config_string(lookup_config(config_tree, "AddressFamily"), &afname)) {
if(!strcasecmp(afname, "IPv4"))
addressfamily = AF_INET;
else if(!strcasecmp(afname, "any"))
addressfamily = AF_UNSPEC;
else {
- logger(LOG_ERR, _("Invalid address family!"));
+ logger(LOG_ERR, "Invalid address family!");
return false;
}
free(afname);
/* 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) {
- logger(LOG_ERR, _("Unrecognized cipher type!"));
- return false;
- }
- }
- } else
- myself->cipher = EVP_bf_cbc();
+ if(!get_config_string(lookup_config(config_tree, "Cipher"), &cipher))
+ cipher = xstrdup("blowfish");
- 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(!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;
- 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;
- }
-
- }
+ regenerate_key();
/* 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(!get_config_string(lookup_config(config_tree, "Digest"), &digest))
+ digest = xstrdup("sha1");
- 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;
+ int maclength = 4;
+ get_config_int(lookup_config(config_tree, "MACLength"), &maclength);
+
+ if(maclength < 0) {
+ logger(LOG_ERR, "Bogus MAC length!");
+ return false;
+ }
- myself->connection->outmaclength = 0;
+ 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->compression)) {
- if(myself->compression < 0 || myself->compression > 11) {
- logger(LOG_ERR, _("Bogus compression level!"));
+ if(get_config_int(lookup_config(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);
graph();
+ if(strictsubnets)
+ load_all_subnets();
+
/* 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 */
- 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);
+ 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++)
+ for(i = 0; i < 4; 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);
err = getaddrinfo(address, myport, &hint, &ai);
if(err || !ai) {
- logger(LOG_ERR, _("System call `%s' failed: %s"), "getaddrinfo",
+ logger(LOG_ERR, "System call `%s' failed: %s", "getaddrinfo",
gai_strerror(err));
return false;
}
listen_socket[listen_sockets].udp =
setup_vpn_in_socket((sockaddr_t *) aip->ai_addr);
- if(listen_socket[listen_sockets].udp < 0)
+ 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_ERR, "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_ERR, "event_add failed: %s", strerror(errno));
+ abort();
+ }
ifdebug(CONNECTIONS) {
hostname = sockaddr2hostname((sockaddr_t *) aip->ai_addr);
- logger(LOG_NOTICE, _("Listening on %s"), hostname);
+ logger(LOG_NOTICE, "Listening on %s", hostname);
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++;
+
+ if(listen_sockets >= MAXSOCKETS) {
+ logger(LOG_WARNING, "Maximum of %d listening sockets reached", MAXSOCKETS);
+ break;
+ }
}
freeaddrinfo(ai);
if(listen_sockets)
- logger(LOG_NOTICE, _("Ready"));
+ logger(LOG_NOTICE, "Ready");
else {
- logger(LOG_ERR, _("Unable to create any listening socket!"));
+ logger(LOG_ERR, "Unable to create any listening socket!");
return false;
}
}
/*
- setup all initial network connections
+ initialize network
*/
-bool setup_network_connections(void)
-{
- cp();
-
- now = time(NULL);
-
+bool setup_network(void) {
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;
}
/*
close all open network connections
*/
-void close_network_connections(void)
-{
- avl_node_t *node, *next;
+void close_network_connections(void) {
+ splay_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;
+ c->outgoing = NULL;
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++) {
+ event_del(&listen_socket[i].ev_tcp);
+ event_del(&listen_socket[i].ev_udp);
close(listen_socket[i].tcp);
close(listen_socket[i].udp);
}
+ 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;
+
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);
+ if(myport) free(myport);
+
for(i = 0; i < 4; i++)
free(envp[i]);