/*
tincd.c -- the main file for tincd
- Copyright (C) 1998-2001 Ivo Timmermans <itimmermans@bigfoot.com>
- 2000,2001 Guus Sliepen <guus@sliepen.warande.net>
+ Copyright (C) 1998-2005 Ivo Timmermans
+ 2000-2010 Guus Sliepen <guus@tinc-vpn.org>
+ 2008 Max Rijevski <maksuf@gmail.com>
+ 2009 Michael Tokarev <mjt@tls.msk.ru>
+ 2010 Julien Muchembled <jm@jmuchemb.eu>
+ 2010 Timothy Redaelli <timothy@redaelli.eu>
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: tincd.c,v 1.10.4.46 2001/05/28 08:56:57 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 "config.h"
+#include "system.h"
-#include <errno.h>
-#include <fcntl.h>
-#include <getopt.h>
-#include <signal.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <syslog.h>
-#include <unistd.h>
-#include <signal.h>
-#include <string.h>
-#include <termios.h>
-
-#ifdef HAVE_SYS_IOCTL_H
-# include <sys/ioctl.h>
+/* Darwin (MacOS/X) needs the following definition... */
+#ifndef _P1003_1B_VISIBLE
+#define _P1003_1B_VISIBLE
#endif
-#ifdef HAVE_OPENSSL_RAND_H
-# include <openssl/rand.h>
-#else
-# include <rand.h>
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
#endif
-#ifdef HAVE_OPENSSL_RSA_H
-# include <openssl/rsa.h>
-#else
-# include <rsa.h>
-#endif
+#include <openssl/rand.h>
+#include <openssl/rsa.h>
+#include <openssl/pem.h>
+#include <openssl/evp.h>
+#include <openssl/engine.h>
-#ifdef HAVE_OPENSSL_ERR_H
-# include <openssl/err.h>
-#else
-# include <err.h>
+#ifdef HAVE_LZO
+#include LZO1X_H
#endif
-#ifdef HAVE_OPENSSL_PEM_H
-# include <openssl/pem.h>
-#else
-# include <pem.h>
+#ifndef HAVE_MINGW
+#include <pwd.h>
+#include <grp.h>
+#include <time.h>
#endif
-
-
-#include <utils.h>
-#include <xalloc.h>
+#include <getopt.h>
+#include "pidfile.h"
#include "conf.h"
+#include "device.h"
+#include "logger.h"
#include "net.h"
#include "netutl.h"
#include "process.h"
#include "protocol.h"
-#include "subnet.h"
-
-#include "system.h"
+#include "utils.h"
+#include "xalloc.h"
/* The name this program was run with. */
-char *program_name;
+char *program_name = NULL;
/* If nonzero, display usage information and exit. */
-static int show_help;
+bool show_help = false;
/* If nonzero, print the version on standard output and exit. */
-static int show_version;
+bool show_version = false;
/* If nonzero, it will attempt to kill a running tincd and exit. */
-static int kill_tincd = 0;
+int kill_tincd = 0;
/* If nonzero, generate public/private keypair for this host/net. */
-static int generate_keys = 0;
-
-char *identname; /* program name for syslog */
-char *pidfilename; /* pid file location */
-char **g_argv; /* a copy of the cmdline arguments */
-char **environment; /* A pointer to the environment on
- startup */
-
-static struct option const long_options[] =
-{
- { "config", required_argument, NULL, 'c' },
- { "kill", no_argument, NULL, 'k' },
- { "net", required_argument, NULL, 'n' },
- { "help", no_argument, &show_help, 1 },
- { "version", no_argument, &show_version, 1 },
- { "no-detach", no_argument, &do_detach, 0 },
- { "generate-keys", optional_argument, NULL, 'K'},
- { NULL, 0, NULL, 0 }
+int generate_keys = 0;
+
+/* If nonzero, use null ciphers and skip all key exchanges. */
+bool bypass_security = false;
+
+/* If nonzero, disable swapping for this process. */
+bool do_mlock = false;
+
+/* If nonzero, chroot to netdir after startup. */
+static bool do_chroot = false;
+
+/* If !NULL, do setuid to given user after startup */
+static const char *switchuser = NULL;
+
+/* If nonzero, write log entries to a separate file. */
+bool use_logfile = false;
+
+char *identname = NULL; /* program name for syslog */
+char *pidfilename = NULL; /* pid file location */
+char *logfilename = NULL; /* log file location */
+char **g_argv; /* a copy of the cmdline arguments */
+
+static int status;
+
+static struct option const long_options[] = {
+ {"config", required_argument, NULL, 'c'},
+ {"kill", optional_argument, NULL, 'k'},
+ {"net", required_argument, NULL, 'n'},
+ {"help", no_argument, NULL, 1},
+ {"version", no_argument, NULL, 2},
+ {"no-detach", no_argument, NULL, 'D'},
+ {"generate-keys", optional_argument, NULL, 'K'},
+ {"debug", optional_argument, NULL, 'd'},
+ {"bypass-security", no_argument, NULL, 3},
+ {"mlock", no_argument, NULL, 'L'},
+ {"chroot", no_argument, NULL, 'R'},
+ {"user", required_argument, NULL, 'U'},
+ {"logfile", optional_argument, NULL, 4},
+ {"pidfile", required_argument, NULL, 5},
+ {NULL, 0, NULL, 0}
};
-static void
-usage(int status)
-{
- if(status != 0)
- fprintf(stderr, _("Try `%s --help\' for more information.\n"), program_name);
- else
- {
- printf(_("Usage: %s [option]...\n\n"), program_name);
- printf(_(" -c, --config=DIR Read configuration options from DIR.\n"
- " -D, --no-detach Don't fork and detach.\n"
- " -d Increase debug level.\n"
- " -k, --kill Attempt to kill a running tincd and exit.\n"
- " -n, --net=NETNAME Connect to net NETNAME.\n"));
- printf(_(" -K, --generate-keys[=BITS] Generate public/private RSA keypair.\n"
- " --help Display this help and exit.\n"
- " --version Output version information and exit.\n\n"));
- printf(_("Report bugs to tinc@nl.linux.org.\n"));
- }
- exit(status);
+#ifdef HAVE_MINGW
+static struct WSAData wsa_state;
+CRITICAL_SECTION mutex;
+int main2(int argc, char **argv);
+#endif
+
+static void usage(bool status) {
+ if(status)
+ fprintf(stderr, "Try `%s --help\' for more information.\n",
+ program_name);
+ else {
+ printf("Usage: %s [option]...\n\n", program_name);
+ printf(" -c, --config=DIR Read configuration options from DIR.\n"
+ " -D, --no-detach Don't fork and detach.\n"
+ " -d, --debug[=LEVEL] Increase debug level or set it to LEVEL.\n"
+ " -k, --kill[=SIGNAL] Attempt to kill a running tincd and exit.\n"
+ " -n, --net=NETNAME Connect to net NETNAME.\n"
+ " -K, --generate-keys[=BITS] Generate public/private RSA keypair.\n"
+ " -L, --mlock Lock tinc into main memory.\n"
+ " --logfile[=FILENAME] Write log entries to a logfile.\n"
+ " --pidfile=FILENAME Write PID to FILENAME.\n"
+ " -o [HOST.]KEY=VALUE Set global/host configuration value.\n"
+ " -R, --chroot chroot to NET dir at startup.\n"
+ " -U, --user=USER setuid to given USER at startup.\n"
+ " --help Display this help and exit.\n"
+ " --version Output version information and exit.\n\n");
+ printf("Report bugs to tinc@tinc-vpn.org.\n");
+ }
}
-void
-parse_options(int argc, char **argv, char **envp)
-{
- int r;
- int option_index = 0;
-
- while((r = getopt_long(argc, argv, "c:Ddkn:K::", long_options, &option_index)) != EOF)
- {
- switch(r)
- {
- case 0: /* long option */
- break;
- case 'c': /* config file */
- confbase = xmalloc(strlen(optarg)+1);
- strcpy(confbase, optarg);
- break;
- case 'D': /* no detach */
- do_detach = 0;
- break;
- case 'd': /* inc debug level */
- if(optarg)
- debug_lvl = atoi(optarg);
- else
- debug_lvl++;
- break;
- case 'k': /* kill old tincds */
- kill_tincd = 1;
- break;
- case 'n': /* net name given */
- netname = xmalloc(strlen(optarg)+1);
- strcpy(netname, optarg);
- break;
- case 'K': /* generate public/private keypair */
- if(optarg)
- {
- generate_keys = atoi(optarg);
- if(generate_keys < 512)
- {
- fprintf(stderr, _("Invalid argument `%s'; BITS must be a number equal to or greater than 512.\n"),
- optarg);
- usage(1);
- }
- generate_keys &= ~7; /* Round it to bytes */
- }
- else
- generate_keys = 1024;
- break;
- case '?':
- usage(1);
- default:
- break;
- }
- }
+static bool parse_options(int argc, char **argv) {
+ config_t *cfg;
+ int r;
+ int option_index = 0;
+ int lineno = 0;
+
+ cmdline_conf = list_alloc((list_action_t)free_config);
+
+ while((r = getopt_long(argc, argv, "c:DLd::k::n:o:K::RU:", long_options, &option_index)) != EOF) {
+ switch (r) {
+ case 0: /* long option */
+ break;
+
+ case 'c': /* config file */
+ confbase = xstrdup(optarg);
+ break;
+
+ case 'D': /* no detach */
+ do_detach = false;
+ break;
+
+ case 'L': /* no detach */
+#ifndef HAVE_MLOCKALL
+ logger(LOG_ERR, "%s not supported on this platform", "mlockall()");
+ return false;
+#else
+ do_mlock = true;
+ break;
+#endif
+
+ case 'd': /* inc debug level */
+ if(optarg)
+ debug_level = atoi(optarg);
+ else
+ debug_level++;
+ break;
+
+ case 'k': /* kill old tincds */
+#ifndef HAVE_MINGW
+ if(optarg) {
+ if(!strcasecmp(optarg, "HUP"))
+ kill_tincd = SIGHUP;
+ else if(!strcasecmp(optarg, "TERM"))
+ kill_tincd = SIGTERM;
+ else if(!strcasecmp(optarg, "KILL"))
+ kill_tincd = SIGKILL;
+ else if(!strcasecmp(optarg, "USR1"))
+ kill_tincd = SIGUSR1;
+ else if(!strcasecmp(optarg, "USR2"))
+ kill_tincd = SIGUSR2;
+ else if(!strcasecmp(optarg, "WINCH"))
+ kill_tincd = SIGWINCH;
+ else if(!strcasecmp(optarg, "INT"))
+ kill_tincd = SIGINT;
+ else if(!strcasecmp(optarg, "ALRM"))
+ kill_tincd = SIGALRM;
+ else {
+ kill_tincd = atoi(optarg);
+
+ if(!kill_tincd) {
+ fprintf(stderr, "Invalid argument `%s'; SIGNAL must be a number or one of HUP, TERM, KILL, USR1, USR2, WINCH, INT or ALRM.\n",
+ optarg);
+ usage(true);
+ return false;
+ }
+ }
+ } else
+ kill_tincd = SIGTERM;
+#else
+ kill_tincd = 1;
+#endif
+ break;
+
+ case 'n': /* net name given */
+ /* netname "." is special: a "top-level name" */
+ netname = strcmp(optarg, ".") != 0 ?
+ xstrdup(optarg) : NULL;
+ break;
+
+ case 'o': /* option */
+ cfg = parse_config_line(optarg, NULL, ++lineno);
+ if (!cfg)
+ return false;
+ list_insert_tail(cmdline_conf, cfg);
+ break;
+
+ case 'K': /* generate public/private keypair */
+ if(optarg) {
+ generate_keys = atoi(optarg);
+
+ if(generate_keys < 512) {
+ fprintf(stderr, "Invalid argument `%s'; BITS must be a number equal to or greater than 512.\n",
+ optarg);
+ usage(true);
+ return false;
+ }
+
+ generate_keys &= ~7; /* Round it to bytes */
+ } else
+ generate_keys = 2048;
+ break;
+
+ case 'R': /* chroot to NETNAME dir */
+ do_chroot = true;
+ break;
+
+ case 'U': /* setuid to USER */
+ switchuser = optarg;
+ break;
+
+ case 1: /* show help */
+ show_help = true;
+ break;
+
+ case 2: /* show version */
+ show_version = true;
+ break;
+
+ case 3: /* bypass security */
+ bypass_security = true;
+ break;
+
+ case 4: /* write log entries to a file */
+ use_logfile = true;
+ if(optarg)
+ logfilename = xstrdup(optarg);
+ break;
+
+ case 5: /* write PID to a file */
+ pidfilename = xstrdup(optarg);
+ break;
+
+ case '?':
+ usage(true);
+ return false;
+
+ default:
+ break;
+ }
+ }
+
+ return true;
}
/* This function prettyprints the key generation process */
-void indicator(int a, int b, void *p)
-{
- switch(a)
- {
- case 0:
- fprintf(stderr, ".");
- break;
- case 1:
- fprintf(stderr, "+");
- break;
- case 2:
- fprintf(stderr, "-");
- break;
- case 3:
- switch(b)
- {
- case 0:
- fprintf(stderr, " p\n");
- break;
- case 1:
- fprintf(stderr, " q\n");
- break;
- default:
- fprintf(stderr, "?");
- }
- break;
- default:
- fprintf(stderr, "?");
- }
+static void indicator(int a, int b, void *p) {
+ switch (a) {
+ case 0:
+ fprintf(stderr, ".");
+ break;
+
+ case 1:
+ fprintf(stderr, "+");
+ break;
+
+ case 2:
+ fprintf(stderr, "-");
+ break;
+
+ case 3:
+ switch (b) {
+ case 0:
+ fprintf(stderr, " p\n");
+ break;
+
+ case 1:
+ fprintf(stderr, " q\n");
+ break;
+
+ default:
+ fprintf(stderr, "?");
+ }
+ break;
+
+ default:
+ fprintf(stderr, "?");
+ }
}
/*
Generate a public/private RSA keypair, and ask for a file to store
them in.
*/
-int keygen(int bits)
-{
- RSA *rsa_key;
- FILE *f;
- config_t const *cfg;
- char *filename;
-
- fprintf(stderr, _("Generating %d bits keys:\n"), bits);
- rsa_key = RSA_generate_key(bits, 0xFFFF, indicator, NULL);
-
- if(!rsa_key)
- {
- fprintf(stderr, _("Error during key generation!"));
- return -1;
- }
- else
- fprintf(stderr, _("Done.\n"));
-
- if(config && (cfg = get_config_val(config, config_name)))
- asprintf(&filename, "%s/hosts/%s", confbase, cfg->data.ptr);
- else
- asprintf(&filename, "%s/rsa_key.priv", confbase);
-
- if((f = ask_and_safe_open(filename, _("public RSA key"), "a")) == NULL)
- return -1;
-
- if(ftell(f))
- fprintf(stderr, _("Appending key to existing contents.\nMake sure only one key is stored in the file.\n"));
-
- PEM_write_RSAPublicKey(f, rsa_key);
- fclose(f);
- free(filename);
+static bool keygen(int bits) {
+ RSA *rsa_key;
+ FILE *f;
+ char *name = NULL;
+ char *filename;
+
+ get_config_string(lookup_config(config_tree, "Name"), &name);
+
+ if(name && !check_id(name)) {
+ fprintf(stderr, "Invalid name for myself!\n");
+ return false;
+ }
+
+ fprintf(stderr, "Generating %d bits keys:\n", bits);
+ rsa_key = RSA_generate_key(bits, 0x10001, indicator, NULL);
+
+ if(!rsa_key) {
+ fprintf(stderr, "Error during key generation!\n");
+ return false;
+ } else
+ fprintf(stderr, "Done.\n");
+
+ xasprintf(&filename, "%s/rsa_key.priv", confbase);
+ f = ask_and_open(filename, "private RSA key");
+
+ if(!f)
+ return false;
+
+ if(disable_old_keys(f))
+ fprintf(stderr, "Warning: old key(s) found and disabled.\n");
- asprintf(&filename, "%s/rsa_key.priv", confbase);
- if((f = ask_and_safe_open(filename, _("private RSA key"), "a")) == NULL)
- return -1;
+#ifdef HAVE_FCHMOD
+ /* Make it unreadable for others. */
+ fchmod(fileno(f), 0600);
+#endif
+
+ fputc('\n', f);
+ PEM_write_RSAPrivateKey(f, rsa_key, NULL, NULL, 0, NULL, NULL);
+ fclose(f);
+ free(filename);
+
+ if(name)
+ xasprintf(&filename, "%s/hosts/%s", confbase, name);
+ else
+ xasprintf(&filename, "%s/rsa_key.pub", confbase);
+
+ f = ask_and_open(filename, "public RSA key");
+
+ if(!f)
+ return false;
- if(ftell(f))
- fprintf(stderr, _("Appending key to existing contents.\nMake sure only one key is stored in the file.\n"));
+ if(disable_old_keys(f))
+ fprintf(stderr, "Warning: old key(s) found and disabled.\n");
- PEM_write_RSAPrivateKey(f, rsa_key, NULL, NULL, 0, NULL, NULL);
- fclose(f);
- free(filename);
+ fputc('\n', f);
+ PEM_write_RSAPublicKey(f, rsa_key);
+ fclose(f);
+ free(filename);
+ if(name)
+ free(name);
- return 0;
+ return true;
}
/*
Set all files and paths according to netname
*/
-void make_names(void)
-{
- if(netname)
- {
- if(!pidfilename)
- asprintf(&pidfilename, LOCALSTATEDIR "/run/tinc.%s.pid", netname);
- if(!confbase)
- asprintf(&confbase, "%s/tinc/%s", CONFDIR, netname);
- else
- syslog(LOG_INFO, _("Both netname and configuration directory given, using the latter..."));
- if(!identname)
- asprintf(&identname, "tinc.%s", netname);
- }
- else
- {
- if(!pidfilename)
- pidfilename = LOCALSTATEDIR "/run/tinc.pid";
- if(!confbase)
- asprintf(&confbase, "%s/tinc", CONFDIR);
- if(!identname)
- identname = "tinc";
- }
+static void make_names(void) {
+#ifdef HAVE_MINGW
+ HKEY key;
+ char installdir[1024] = "";
+ long len = sizeof(installdir);
+#endif
+
+ if(netname)
+ xasprintf(&identname, "tinc.%s", netname);
+ else
+ identname = xstrdup("tinc");
+
+#ifdef HAVE_MINGW
+ if(!RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\tinc", 0, KEY_READ, &key)) {
+ if(!RegQueryValueEx(key, NULL, 0, 0, installdir, &len)) {
+ if(!logfilename)
+ xasprintf(&logfilename, "%s/log/%s.log", identname);
+ if(!confbase) {
+ if(netname)
+ xasprintf(&confbase, "%s/%s", installdir, netname);
+ else
+ xasprintf(&confbase, "%s", installdir);
+ }
+ }
+ RegCloseKey(key);
+ if(*installdir)
+ return;
+ }
+#endif
+
+ if(!pidfilename)
+ xasprintf(&pidfilename, LOCALSTATEDIR "/run/%s.pid", identname);
+
+ if(!logfilename)
+ xasprintf(&logfilename, LOCALSTATEDIR "/log/%s.log", identname);
+
+ if(netname) {
+ if(!confbase)
+ xasprintf(&confbase, CONFDIR "/tinc/%s", netname);
+ else
+ logger(LOG_INFO, "Both netname and configuration directory given, using the latter...");
+ } else {
+ if(!confbase)
+ xasprintf(&confbase, CONFDIR "/tinc");
+ }
+}
+
+static void free_names() {
+ if (identname) free(identname);
+ if (netname) free(netname);
+ if (pidfilename) free(pidfilename);
+ if (logfilename) free(logfilename);
+ if (confbase) free(confbase);
}
-int
-main(int argc, char **argv, char **envp)
-{
- program_name = argv[0];
+static bool drop_privs() {
+#ifdef HAVE_MINGW
+ if (switchuser) {
+ logger(LOG_ERR, "%s not supported on this platform", "-U");
+ return false;
+ }
+ if (do_chroot) {
+ logger(LOG_ERR, "%s not supported on this platform", "-R");
+ return false;
+ }
+#else
+ uid_t uid = 0;
+ if (switchuser) {
+ struct passwd *pw = getpwnam(switchuser);
+ if (!pw) {
+ logger(LOG_ERR, "unknown user `%s'", switchuser);
+ return false;
+ }
+ uid = pw->pw_uid;
+ if (initgroups(switchuser, pw->pw_gid) != 0 ||
+ setgid(pw->pw_gid) != 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s",
+ "initgroups", strerror(errno));
+ return false;
+ }
+ endgrent();
+ endpwent();
+ }
+ if (do_chroot) {
+ tzset(); /* for proper timestamps in logs */
+ if (chroot(confbase) != 0 || chdir("/") != 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s",
+ "chroot", strerror(errno));
+ return false;
+ }
+ free(confbase);
+ confbase = xstrdup("");
+ }
+ if (switchuser)
+ if (setuid(uid) != 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s",
+ "setuid", strerror(errno));
+ return false;
+ }
+#endif
+ return true;
+}
- setlocale (LC_ALL, "");
- bindtextdomain (PACKAGE, LOCALEDIR);
- textdomain (PACKAGE);
+#ifdef HAVE_MINGW
+# define setpriority(level) SetPriorityClass(GetCurrentProcess(), (level))
+#else
+# define NORMAL_PRIORITY_CLASS 0
+# define BELOW_NORMAL_PRIORITY_CLASS 10
+# define HIGH_PRIORITY_CLASS -10
+# define setpriority(level) (setpriority(PRIO_PROCESS, 0, (level)))
+#endif
- /* Do some intl stuff right now */
-
- unknown = _("unknown");
-
- environment = envp;
- parse_options(argc, argv, envp);
-
- if(show_version)
- {
- printf(_("%s version %s (built %s %s, protocol %d)\n"), PACKAGE, VERSION, __DATE__, __TIME__, PROT_CURRENT);
- printf(_("Copyright (C) 1998-2001 Ivo Timmermans, Guus Sliepen and others.\n"
- "See the AUTHORS file for a complete list.\n\n"
- "tinc comes with ABSOLUTELY NO WARRANTY. This is free software,\n"
- "and you are welcome to redistribute it under certain conditions;\n"
- "see the file COPYING for details.\n"));
-
- return 0;
- }
-
- if(show_help)
- usage(0);
-
- if(geteuid())
- {
- fprintf(stderr, _("You must be root to run this program.\n"));
- return 1;
- }
-
-#ifdef HAVE_SOLARIS
- openlog("tinc", LOG_CONS, LOG_DAEMON); /* Catch all syslog() calls issued before detaching */
-#else
- openlog("tinc", LOG_PERROR, LOG_DAEMON); /* Catch all syslog() calls issued before detaching */
+int main(int argc, char **argv) {
+ program_name = argv[0];
+
+ if(!parse_options(argc, argv))
+ return 1;
+
+ make_names();
+
+ if(show_version) {
+ printf("%s version %s (built %s %s, protocol %d)\n", PACKAGE,
+ VERSION, __DATE__, __TIME__, PROT_CURRENT);
+ printf("Copyright (C) 1998-2010 Ivo Timmermans, Guus Sliepen and others.\n"
+ "See the AUTHORS file for a complete list.\n\n"
+ "tinc comes with ABSOLUTELY NO WARRANTY. This is free software,\n"
+ "and you are welcome to redistribute it under certain conditions;\n"
+ "see the file COPYING for details.\n");
+
+ return 0;
+ }
+
+ if(show_help) {
+ usage(false);
+ return 0;
+ }
+
+ if(kill_tincd)
+ return !kill_other(kill_tincd);
+
+ openlogger("tinc", use_logfile?LOGMODE_FILE:LOGMODE_STDERR);
+
+ g_argv = argv;
+
+ init_configuration(&config_tree);
+
+ /* Slllluuuuuuurrrrp! */
+
+ RAND_load_file("/dev/urandom", 1024);
+
+ ENGINE_load_builtin_engines();
+ ENGINE_register_all_complete();
+
+ OpenSSL_add_all_algorithms();
+
+ if(generate_keys) {
+ read_server_config();
+ return !keygen(generate_keys);
+ }
+
+ if(!read_server_config())
+ return 1;
+
+#ifdef HAVE_LZO
+ if(lzo_init() != LZO_E_OK) {
+ logger(LOG_ERR, "Error initializing LZO compressor!");
+ return 1;
+ }
#endif
- g_argv = argv;
-
- make_names();
-
- /* Slllluuuuuuurrrrp! */
-cp
- RAND_load_file("/dev/urandom", 1024);
-cp
- if(generate_keys)
- {
- read_server_config();
- exit(keygen(generate_keys));
- }
-
- if(kill_tincd)
- exit(kill_other());
-
- if(read_server_config())
- exit(1);
-cp
- if(detach())
- exit(0);
-cp
- if(debug_lvl >= DEBUG_ERROR)
- ERR_load_crypto_strings();
-
- for(;;)
- {
- if(!setup_network_connections())
- {
- main_loop();
- cleanup_and_exit(1);
- }
-
- syslog(LOG_ERR, _("Unrecoverable error"));
- cp_trace();
-
- if(do_detach)
- {
- syslog(LOG_NOTICE, _("Restarting in %d seconds!"), MAXTIMEOUT);
- sleep(MAXTIMEOUT);
- }
- else
- {
- syslog(LOG_ERR, _("Not restarting."));
- exit(1);
+#ifdef HAVE_MINGW
+ if(WSAStartup(MAKEWORD(2, 2), &wsa_state)) {
+ logger(LOG_ERR, "System call `%s' failed: %s", "WSAStartup", winerror(GetLastError()));
+ return 1;
+ }
+
+ if(!do_detach || !init_service())
+ return main2(argc, argv);
+ else
+ return 1;
+}
+
+int main2(int argc, char **argv) {
+ InitializeCriticalSection(&mutex);
+ EnterCriticalSection(&mutex);
+#endif
+
+ if(!detach())
+ return 1;
+
+#ifdef HAVE_MLOCKALL
+ /* Lock all pages into memory if requested.
+ * This has to be done after daemon()/fork() so it works for child.
+ * No need to do that in parent as it's very short-lived. */
+ if(do_mlock && mlockall(MCL_CURRENT | MCL_FUTURE) != 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s", "mlockall",
+ strerror(errno));
+ return 1;
+ }
+#endif
+
+ /* Setup sockets and open device. */
+
+ if(!setup_network())
+ goto end;
+
+ /* Initiate all outgoing connections. */
+
+ try_outgoing_connections();
+
+ /* Change process priority */
+
+ char *priority = 0;
+
+ if(get_config_string(lookup_config(config_tree, "ProcessPriority"), &priority)) {
+ if(!strcasecmp(priority, "Normal")) {
+ if (setpriority(NORMAL_PRIORITY_CLASS) != 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s",
+ "setpriority", strerror(errno));
+ goto end;
+ }
+ } else if(!strcasecmp(priority, "Low")) {
+ if (setpriority(BELOW_NORMAL_PRIORITY_CLASS) != 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s",
+ "setpriority", strerror(errno));
+ goto end;
+ }
+ } else if(!strcasecmp(priority, "High")) {
+ if (setpriority(HIGH_PRIORITY_CLASS) != 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s",
+ "setpriority", strerror(errno));
+ goto end;
+ }
+ } else {
+ logger(LOG_ERR, "Invalid priority `%s`!", priority);
+ goto end;
+ }
}
- }
+
+ /* drop privileges */
+ if (!drop_privs())
+ goto end;
+
+ /* Start main loop. It only exits when tinc is killed. */
+
+ status = main_loop();
+
+ /* Shutdown properly. */
+
+ ifdebug(CONNECTIONS)
+ dump_device_stats();
+
+ close_network_connections();
+
+end:
+ logger(LOG_NOTICE, "Terminating");
+
+#ifndef HAVE_MINGW
+ remove_pid(pidfilename);
+#endif
+
+ EVP_cleanup();
+ ENGINE_cleanup();
+ CRYPTO_cleanup_all_ex_data();
+ ERR_remove_state(0);
+ ERR_free_strings();
+
+ exit_configuration(&config_tree);
+ free_names();
+
+ return status;
}
projects / tinc / blobdiff