/*
net_setup.c -- Setup.
Copyright (C) 1998-2005 Ivo Timmermans,
- 2000-2009 Guus Sliepen <guus@tinc-vpn.org>
+ 2000-2012 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.
-
- $Id$
+ 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 "control.h"
#include "device.h"
#include "digest.h"
+#include "ecdsa.h"
#include "graph.h"
#include "logger.h"
#include "net.h"
char *myport;
static struct event device_ev;
+devops_t devops;
+
+bool node_read_ecdsa_public_key(node_t *n) {
+ if(ecdsa_active(&n->ecdsa))
+ return true;
+
+ splay_tree_t *config_tree;
+ FILE *fp;
+ char *fname;
+ char *p;
+ bool result = false;
+
+ xasprintf(&fname, "%s/hosts/%s", confbase, n->name);
+
+ init_configuration(&config_tree);
+ if(!read_config_file(config_tree, fname))
+ goto exit;
+
+ /* First, check for simple ECDSAPublicKey statement */
+
+ 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 ECDSAPublicKeyFile statement and read it */
+
+ free(fname);
+
+ if(!get_config_string(lookup_config(config_tree, "ECDSAPublicKeyFile"), &fname))
+ xasprintf(&fname, "%s/hosts/%s", confbase, n->name);
+
+ fp = fopen(fname, "r");
+
+ if(!fp) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Error reading ECDSA public key file `%s': %s", fname, strerror(errno));
+ goto exit;
+ }
+
+ result = ecdsa_read_pem_public_key(&n->ecdsa, fp);
+ fclose(fp);
+
+exit:
+ exit_configuration(&config_tree);
+ free(fname);
+ return result;
+}
+
+bool read_ecdsa_public_key(connection_t *c) {
+ FILE *fp;
+ char *fname;
+ char *p;
+ bool result;
+
+ /* 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 */
+
+ 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(DEBUG_ALWAYS, LOG_ERR, "Error reading ECDSA public key file `%s': %s",
+ fname, strerror(errno));
+ free(fname);
+ return false;
+ }
+
+ result = ecdsa_read_pem_public_key(&c->ecdsa, fp);
+ fclose(fp);
+
+ if(!result)
+ logger(DEBUG_ALWAYS, LOG_ERR, "Parsing ECDSA public key file `%s' failed.", fname);
+ free(fname);
+ return result;
+}
bool read_rsa_public_key(connection_t *c) {
FILE *fp;
char *n;
bool result;
- cp();
-
/* First, check for simple PublicKey statement */
if(get_config_string(lookup_config(c->config_tree, "PublicKey"), &n)) {
/* Else, check for PublicKeyFile statement and read it */
if(!get_config_string(lookup_config(c->config_tree, "PublicKeyFile"), &fname))
- asprintf(&fname, "%s/hosts/%s", confbase, c->name);
+ xasprintf(&fname, "%s/hosts/%s", confbase, c->name);
fp = fopen(fname, "r");
if(!fp) {
- logger(LOG_ERR, _("Error reading RSA public key file `%s': %s"),
- fname, strerror(errno));
+ logger(DEBUG_ALWAYS, LOG_ERR, "Error reading RSA public key file `%s': %s", fname, strerror(errno));
free(fname);
return false;
}
fclose(fp);
if(!result)
- logger(LOG_ERR, _("Reading RSA public key file `%s' failed: %s"), fname, strerror(errno));
+ logger(DEBUG_ALWAYS, LOG_ERR, "Reading RSA public key file `%s' failed: %s", fname, strerror(errno));
free(fname);
return result;
}
-bool read_rsa_private_key() {
+static bool read_ecdsa_private_key(void) {
FILE *fp;
char *fname;
- char *n, *d;
bool result;
- cp();
+ /* Check for PrivateKeyFile statement and read it */
+
+ if(!get_config_string(lookup_config(config_tree, "ECDSAPrivateKeyFile"), &fname))
+ xasprintf(&fname, "%s/ecdsa_key.priv", confbase);
+
+ fp = fopen(fname, "r");
+
+ if(!fp) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Error reading ECDSA 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(DEBUG_ALWAYS, LOG_ERR, "Could not stat ECDSA private key file `%s': %s'", fname, strerror(errno));
+ free(fname);
+ return false;
+ }
+
+ if(s.st_mode & ~0100700)
+ logger(DEBUG_ALWAYS, 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);
+
+ if(!result)
+ logger(DEBUG_ALWAYS, LOG_ERR, "Reading ECDSA private key file `%s' failed: %s", fname, strerror(errno));
+ free(fname);
+ return result;
+}
+
+static bool read_rsa_private_key(void) {
+ FILE *fp;
+ char *fname;
+ char *n, *d;
+ bool result;
/* First, check for simple PrivateKey statement */
if(get_config_string(lookup_config(config_tree, "PrivateKey"), &d)) {
- if(!get_config_string(lookup_config(myself->connection->config_tree, "PublicKey"), &n)) {
- logger(LOG_ERR, _("PrivateKey used but no PublicKey found!"));
+ if(!get_config_string(lookup_config(config_tree, "PublicKey"), &n)) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "PrivateKey used but no PublicKey found!");
free(d);
return false;
}
/* 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(DEBUG_ALWAYS, LOG_ERR, "Error reading RSA private key file `%s': %s",
fname, strerror(errno));
free(fname);
return false;
struct stat s;
if(fstat(fileno(fp), &s)) {
- logger(LOG_ERR, _("Could not stat RSA private key file `%s': %s'"), fname, strerror(errno));
+ logger(DEBUG_ALWAYS, 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(DEBUG_ALWAYS, LOG_WARNING, "Warning: insecure file permissions for RSA private key file `%s'!", fname);
#endif
result = rsa_read_pem_private_key(&myself->connection->rsa, fp);
fclose(fp);
if(!result)
- logger(LOG_ERR, _("Reading RSA private key file `%s' failed: %s"), fname, strerror(errno));
+ logger(DEBUG_ALWAYS, LOG_ERR, "Reading RSA private key file `%s' failed: %s", fname, strerror(errno));
free(fname);
return result;
}
regenerate_key();
}
-void regenerate_key() {
+void regenerate_key(void) {
if(timeout_initialized(&keyexpire_event)) {
- ifdebug(STATUS) logger(LOG_INFO, _("Expiring symmetric keys"));
+ logger(DEBUG_STATUS, LOG_INFO, "Expiring symmetric keys");
event_del(&keyexpire_event);
- send_key_changed(broadcast, myself);
+ 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;
+
+ xasprintf(&dname, "%s/hosts", confbase);
+ dir = opendir(dname);
+ if(!dir) {
+ logger(DEBUG_ALWAYS, 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);
+ read_config_options(config_tree, ent->d_name);
+ read_config_file(config_tree, fname);
+ free(fname);
+
+ 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);
+ }
+
+ 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 *name, *hostname, *mode, *afname, *cipher, *digest, *type;
+ 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(DEBUG_ALWAYS, LOG_ERR, "Name for tinc daemon required!");
return false;
}
if(!check_id(name)) {
- logger(LOG_ERR, _("Invalid name for myself!"));
+ logger(DEBUG_ALWAYS, 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_connection_config(myself->connection)) {
- logger(LOG_ERR, _("Cannot open host configuration file for myself!"));
+ get_config_bool(lookup_config(config_tree, "ExperimentalProtocol"), &experimental);
+
+ if(experimental && !read_ecdsa_private_key())
return false;
- }
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, "TCPOnly"), &choice) && choice)
myself->options |= OPTION_TCPONLY;
- 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) && 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);
+ get_config_bool(lookup_config(config_tree, "LocalDiscovery"), &localdiscovery);
+ 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(DEBUG_ALWAYS, LOG_ERR, "Invalid routing mode!");
return false;
}
free(mode);
- } 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;
+ 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(DEBUG_ALWAYS, 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);
+ get_config_bool(lookup_config(config_tree, "DecrementTTL"), &decrement_ttl);
+ get_config_bool(lookup_config(config_tree, "Broadcast"), &broadcast);
#if !defined(SOL_IP) || !defined(IP_TOS)
if(priorityinheritance)
- logger(LOG_WARNING, _("%s not supported on this platform"), "PriorityInheritance");
+ logger(DEBUG_ALWAYS, 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(DEBUG_ALWAYS, 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(DEBUG_ALWAYS, LOG_ERR, "UDPRcvBuf cannot be negative!");
+ return false;
+ }
+ }
+
+ if(get_config_int(lookup_config(config_tree, "UDPSndBuf"), &udp_sndbuf)) {
+ if(udp_sndbuf <= 0) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "UDPSndBuf cannot be negative!");
+ return false;
+ }
+ }
+
+ if(get_config_int(lookup_config(config_tree, "ReplayWindow"), &replaywin_int)) {
+ if(replaywin_int < 0) {
+ logger(DEBUG_ALWAYS, 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(DEBUG_ALWAYS, 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(!get_config_string(lookup_config(config_tree, "Cipher"), &cipher))
cipher = xstrdup("blowfish");
if(!cipher_open_by_name(&myself->incipher, cipher)) {
- logger(LOG_ERR, _("Unrecognized cipher type!"));
+ logger(DEBUG_ALWAYS, LOG_ERR, "Unrecognized cipher type!");
return false;
}
/* Check if we want to use message authentication codes... */
- if(!get_config_string(lookup_config(myself->connection->config_tree, "Digest"), &digest))
- digest = xstrdup("sha1");
+ int maclength = 4;
+ get_config_int(lookup_config(config_tree, "MACLength"), &maclength);
- if(!digest_open_by_name(&myself->indigest, digest)) {
- logger(LOG_ERR, _("Unrecognized digest type!"));
+ if(maclength < 0) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Bogus MAC length!");
return false;
}
- if(!get_config_int(lookup_config(myself->connection->config_tree, "MACLength"), &myself->inmaclength))
+ if(!get_config_string(lookup_config(config_tree, "Digest"), &digest))
+ digest = xstrdup("sha1");
- if(digest_active(&myself->indigest)) {
- if(myself->inmaclength > digest_length(&myself->indigest)) {
- logger(LOG_ERR, _("MAC length exceeds size of digest!"));
- return false;
- } else if(myself->inmaclength < 0) {
- logger(LOG_ERR, _("Bogus MAC length!"));
- return false;
- }
+ if(!digest_open_by_name(&myself->indigest, digest, maclength)) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Unrecognized digest type!");
+ return false;
}
/* Compression */
- if(get_config_int(lookup_config(myself->connection->config_tree, "Compression"), &myself->incompression)) {
+ if(get_config_int(lookup_config(config_tree, "Compression"), &myself->incompression)) {
if(myself->incompression < 0 || myself->incompression > 11) {
- logger(LOG_ERR, _("Bogus compression level!"));
+ logger(DEBUG_ALWAYS, LOG_ERR, "Bogus compression level!");
return false;
}
} else
graph();
+ if(strictsubnets)
+ load_all_subnets();
+
/* Open device */
- if(!setup_device())
+ devops = os_devops;
+
+ if(get_config_string(lookup_config(config_tree, "DeviceType"), &type)) {
+ if(!strcasecmp(type, "dummy"))
+ devops = dummy_devops;
+ else if(!strcasecmp(type, "raw_socket"))
+ devops = raw_socket_devops;
+ else if(!strcasecmp(type, "multicast"))
+ devops = multicast_devops;
+#ifdef ENABLE_UML
+ else if(!strcasecmp(type, "uml"))
+ devops = uml_devops;
+#endif
+#ifdef ENABLE_VDE
+ else if(!strcasecmp(type, "vde"))
+ devops = vde_devops;
+#endif
+ }
+
+ if(!devops.setup())
return false;
- event_set(&device_ev, device_fd, EV_READ|EV_PERSIST, handle_device_data, NULL);
+ 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;
+ if (event_add(&device_ev, NULL) < 0) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "event_add failed: %s", strerror(errno));
+ devops.close();
+ 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 */
/* Open sockets */
- get_config_string(lookup_config(config_tree, "BindToAddress"), &address);
+ if(!do_detach && getenv("LISTEN_FDS")) {
+ sockaddr_t sa;
+ socklen_t salen;
- hint.ai_family = addressfamily;
- hint.ai_socktype = SOCK_STREAM;
- hint.ai_protocol = IPPROTO_TCP;
- hint.ai_flags = AI_PASSIVE;
-
- 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) {
- close(listen_socket[listen_sockets].tcp);
- continue;
- }
+ listen_sockets = atoi(getenv("LISTEN_FDS"));
+#ifdef HAVE_UNSETENV
+ unsetenv("LISTEN_FDS");
+#endif
- 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_EMERG, _("event_add failed: %s"), strerror(errno));
- abort();
+ if(listen_sockets > MAXSOCKETS) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Too many listening sockets");
+ return false;
}
- 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_EMERG, _("event_add failed: %s"), strerror(errno));
- abort();
- }
+ for(i = 0; i < listen_sockets; i++) {
+ salen = sizeof sa;
+ if(getsockname(i + 3, &sa.sa, &salen) < 0) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Could not get address of listen fd %d: %s", i + 3, sockstrerror(errno));
+ return false;
+ }
- ifdebug(CONNECTIONS) {
- hostname = sockaddr2hostname((sockaddr_t *) aip->ai_addr);
- logger(LOG_NOTICE, _("Listening on %s"), hostname);
- free(hostname);
- }
+ listen_socket[i].tcp = i + 3;
- memcpy(&listen_socket[listen_sockets].sa, aip->ai_addr, aip->ai_addrlen);
- listen_sockets++;
+#ifdef FD_CLOEXEC
+ fcntl(i + 3, F_SETFD, FD_CLOEXEC);
+#endif
- if(listen_sockets >= MAXSOCKETS) {
- logger(LOG_WARNING, _("Maximum of %d listening sockets reached"), MAXSOCKETS);
- break;
+ listen_socket[i].udp = setup_vpn_in_socket(&sa);
+ if(listen_socket[i].udp < 0)
+ return false;
+
+ event_set(&listen_socket[i].ev_tcp, listen_socket[i].tcp, EV_READ|EV_PERSIST, handle_new_meta_connection, NULL);
+ if(event_add(&listen_socket[i].ev_tcp, NULL) < 0) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "event_add failed: %s", strerror(errno));
+ abort();
+ }
+
+ event_set(&listen_socket[i].ev_udp, listen_socket[i].udp, EV_READ|EV_PERSIST, handle_incoming_vpn_data, (void *)(intptr_t)listen_sockets);
+ if(event_add(&listen_socket[listen_sockets].ev_udp, NULL) < 0) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "event_add failed: %s", strerror(errno));
+ abort();
+ }
+
+ if(debug_level >= DEBUG_CONNECTIONS) {
+ hostname = sockaddr2hostname(&sa);
+ logger(DEBUG_CONNECTIONS, LOG_NOTICE, "Listening on %s", hostname);
+ free(hostname);
+ }
+
+ memcpy(&listen_socket[i].sa, &sa, salen);
}
+ } else {
+ listen_sockets = 0;
+ cfg = lookup_config(config_tree, "BindToAddress");
+
+ do {
+ get_config_string(cfg, &address);
+ if(cfg)
+ cfg = lookup_config_next(config_tree, cfg);
+
+ char *port = myport;
+
+ if(address) {
+ char *space = strchr(address, ' ');
+ if(space) {
+ *space++ = 0;
+ port = space;
+ }
+
+ if(!strcmp(address, "*"))
+ *address = 0;
+ }
+
+ hint.ai_family = addressfamily;
+ hint.ai_socktype = SOCK_STREAM;
+ hint.ai_protocol = IPPROTO_TCP;
+ hint.ai_flags = AI_PASSIVE;
+
+ err = getaddrinfo(address && *address ? address : NULL, port, &hint, &ai);
+ free(address);
+
+ if(err || !ai) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s", "getaddrinfo",
+ gai_strerror(err));
+ return false;
+ }
+
+ for(aip = ai; aip; aip = aip->ai_next) {
+ if(listen_sockets >= MAXSOCKETS) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Too many listening sockets");
+ return false;
+ }
+
+ 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) {
+ 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(DEBUG_ALWAYS, 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, (void *)(intptr_t)listen_sockets);
+ if(event_add(&listen_socket[listen_sockets].ev_udp, NULL) < 0) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "event_add failed: %s", strerror(errno));
+ abort();
+ }
+
+ if(debug_level >= DEBUG_CONNECTIONS) {
+ hostname = sockaddr2hostname((sockaddr_t *) aip->ai_addr);
+ logger(DEBUG_CONNECTIONS, LOG_NOTICE, "Listening on %s", hostname);
+ free(hostname);
+ }
+
+ memcpy(&listen_socket[listen_sockets].sa, aip->ai_addr, aip->ai_addrlen);
+ listen_sockets++;
+ }
+
+ freeaddrinfo(ai);
+ } while(cfg);
}
- freeaddrinfo(ai);
-
if(listen_sockets)
- logger(LOG_NOTICE, _("Ready"));
+ logger(DEBUG_ALWAYS, LOG_NOTICE, "Ready");
else {
- logger(LOG_ERR, _("Unable to create any listening socket!"));
+ logger(DEBUG_ALWAYS, LOG_ERR, "Unable to create any listening socket!");
return false;
}
/*
initialize network
*/
-bool setup_network(void)
-{
- cp();
-
+bool setup_network(void) {
init_connections();
init_subnets();
init_nodes();
char *envp[5];
int i;
- cp();
-
for(node = connection_tree->head; node; node = next) {
next = node->next;
c = node->data;
- c->outgoing = false;
+ c->outgoing = NULL;
terminate_connection(c, false);
}
close(listen_socket[i].udp);
}
- 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;
exit_requests();
for(i = 0; i < 4; i++)
free(envp[i]);
- close_device();
+ devops.close();
return;
}