#endif
#include <getopt.h>
-#include "pidfile.h"
#include "conf.h"
+#include "control.h"
+#include "crypto.h"
#include "device.h"
#include "logger.h"
#include "net.h"
char *program_name = NULL;
/* If nonzero, display usage information and exit. */
-bool show_help = false;
+static bool show_help = false;
/* If nonzero, print the version on standard output and exit. */
-bool show_version = false;
-
-/* If nonzero, it will attempt to kill a running tincd and exit. */
-int kill_tincd = 0;
-
-/* If nonzero, generate public/private keypair for this host/net. */
-int generate_keys = 0;
+static bool show_version = false;
/* 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;
+static bool do_mlock = false;
/* If nonzero, chroot to netdir after startup. */
static bool do_chroot = false;
bool use_logfile = false;
char *identname = NULL; /* program name for syslog */
-char *pidfilename = NULL; /* pid file location */
char *logfilename = NULL; /* log file location */
+char *pidfilename = NULL;
char **g_argv; /* a copy of the cmdline arguments */
-static int status;
+static int status = 1;
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'},
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, --option=[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( " -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"
+ " -n, --net=NETNAME Connect to net NETNAME.\n"
+ " -L, --mlock Lock tinc into main memory.\n"
+ " --logfile[=FILENAME] Write log entries to a logfile.\n"
+ " --pidfile=FILENAME Write PID and control socket cookie to FILENAME.\n"
+ " --bypass-security Disables meta protocol security, for debugging.\n"
+ " -o, --option[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");
}
}
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) {
+ while((r = getopt_long(argc, argv, "c:DLd::n:o:RU:", long_options, &option_index)) != EOF) {
switch (r) {
case 0: /* long option */
break;
case 'L': /* no detach */
#ifndef HAVE_MLOCKALL
- logger(LOG_ERR, "%s not supported on this platform", "mlockall()");
+ logger(DEBUG_ALWAYS, LOG_ERR, "%s not supported on this platform", "mlockall()");
return false;
#else
do_mlock = true;
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 if(!strcasecmp(optarg, "ABRT"))
- kill_tincd = SIGABRT;
- 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;
+ netname = xstrdup(optarg);
break;
case 'o': /* option */
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;
logfilename = xstrdup(optarg);
break;
- case 5: /* write PID to a file */
+ case 5: /* open control socket here */
pidfilename = xstrdup(optarg);
break;
}
}
- return true;
-}
-
-/* This function prettyprints the key generation process */
-
-static void indicator(int a, int b, void *p) {
- switch (a) {
- case 0:
- fprintf(stderr, ".");
- break;
+ if(!netname && (netname = getenv("NETNAME")))
+ netname = xstrdup(netname);
- case 1:
- fprintf(stderr, "+");
- break;
+ /* netname "." is special: a "top-level name" */
- 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, "?");
+ if(netname && (!*netname || !strcmp(netname, "."))) {
+ free(netname);
+ netname = NULL;
}
-}
-
-/*
- Generate a public/private RSA keypair, and ask for a file to store
- them in.
-*/
-static bool keygen(int bits) {
- RSA *rsa_key;
- FILE *f;
- char *name = get_name();
- char *filename;
-
- 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;
-#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)
+ if(netname && (strpbrk(netname, "\\/") || *netname == '.')) {
+ fprintf(stderr, "Invalid character in netname!\n");
return false;
-
- fputc('\n', f);
- PEM_write_RSAPublicKey(f, rsa_key);
- fclose(f);
- free(filename);
- free(name);
+ }
return true;
}
#ifdef HAVE_MINGW
HKEY key;
char installdir[1024] = "";
- long len = sizeof(installdir);
+ long len = sizeof installdir;
#endif
if(netname)
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);
+ xasprintf(&logfilename, "%s" SLASH "log" SLASH "%s.log", identname);
if(!confbase) {
if(netname)
- xasprintf(&confbase, "%s/%s", installdir, netname);
+ xasprintf(&confbase, "%s" SLASH "%s", installdir, netname);
else
xasprintf(&confbase, "%s", installdir);
}
+ if(!pidfilename)
+ xasprintf(&pidfilename, "%s" SLASH "pid", confbase);
}
RegCloseKey(key);
if(*installdir)
}
#endif
- if(!pidfilename)
- xasprintf(&pidfilename, LOCALSTATEDIR "/run/%s.pid", identname);
-
if(!logfilename)
- xasprintf(&logfilename, LOCALSTATEDIR "/log/%s.log", identname);
+ xasprintf(&logfilename, LOCALSTATEDIR SLASH "log" SLASH "%s.log", identname);
+
+ if(!pidfilename)
+ xasprintf(&pidfilename, LOCALSTATEDIR SLASH "run" SLASH "%s.pid", identname);
if(netname) {
if(!confbase)
- xasprintf(&confbase, CONFDIR "/tinc/%s", netname);
+ xasprintf(&confbase, CONFDIR SLASH "tinc" SLASH "%s", netname);
else
- logger(LOG_INFO, "Both netname and configuration directory given, using the latter...");
+ logger(DEBUG_ALWAYS, LOG_INFO, "Both netname and configuration directory given, using the latter...");
} else {
if(!confbase)
- xasprintf(&confbase, CONFDIR "/tinc");
+ xasprintf(&confbase, CONFDIR SLASH "tinc");
}
}
-static void free_names() {
+static void free_names(void) {
if (identname) free(identname);
if (netname) free(netname);
if (pidfilename) free(pidfilename);
if (confbase) free(confbase);
}
-static bool drop_privs() {
+static bool drop_privs(void) {
#ifdef HAVE_MINGW
if (switchuser) {
- logger(LOG_ERR, "%s not supported on this platform", "-U");
+ logger(DEBUG_ALWAYS, LOG_ERR, "%s not supported on this platform", "-U");
return false;
}
if (do_chroot) {
- logger(LOG_ERR, "%s not supported on this platform", "-R");
+ logger(DEBUG_ALWAYS, LOG_ERR, "%s not supported on this platform", "-R");
return false;
}
#else
if (switchuser) {
struct passwd *pw = getpwnam(switchuser);
if (!pw) {
- logger(LOG_ERR, "unknown user `%s'", switchuser);
+ logger(DEBUG_ALWAYS, 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",
+ logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s",
"initgroups", strerror(errno));
return false;
}
if (do_chroot) {
tzset(); /* for proper timestamps in logs */
if (chroot(confbase) != 0 || chdir("/") != 0) {
- logger(LOG_ERR, "System call `%s' failed: %s",
+ logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s",
"chroot", strerror(errno));
return false;
}
}
if (switchuser)
if (setuid(uid) != 0) {
- logger(LOG_ERR, "System call `%s' failed: %s",
+ logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s",
"setuid", strerror(errno));
return false;
}
make_names();
if(show_version) {
- printf("%s version %s (built %s %s, protocol %d)\n", PACKAGE,
- VERSION, __DATE__, __TIME__, PROT_CURRENT);
+ printf("%s version %s (built %s %s, protocol %d.%d)\n", PACKAGE,
+ VERSION, __DATE__, __TIME__, PROT_MAJOR, PROT_MINOR);
printf("Copyright (C) 1998-2012 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"
return 0;
}
- if(kill_tincd)
- return !kill_other(kill_tincd);
+#ifdef HAVE_MINGW
+ if(WSAStartup(MAKEWORD(2, 2), &wsa_state)) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s", "WSAStartup", winerror(GetLastError()));
+ return 1;
+ }
+#endif
openlogger("tinc", use_logfile?LOGMODE_FILE:LOGMODE_STDERR);
/* 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);
- }
+ srand(time(NULL));
+ crypto_init();
if(!read_server_config())
return 1;
#ifdef HAVE_LZO
if(lzo_init() != LZO_E_OK) {
- logger(LOG_ERR, "Error initializing LZO compressor!");
+ logger(DEBUG_ALWAYS, LOG_ERR, "Error initializing LZO compressor!");
return 1;
}
#endif
#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
* 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",
+ logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s", "mlockall",
strerror(errno));
return 1;
}
#endif
+ if(!event_init()) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Error initializing libevent!");
+ return 1;
+ }
+
/* Setup sockets and open device. */
if(!setup_network())
- goto end;
+ goto end_nonet;
+
+ if(!init_control())
+ goto end_nonet;
/* Initiate all outgoing connections. */
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",
+ logger(DEBUG_ALWAYS, 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",
+ logger(DEBUG_ALWAYS, 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",
+ logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s",
"setpriority", strerror(errno));
goto end;
}
} else {
- logger(LOG_ERR, "Invalid priority `%s`!", priority);
+ logger(DEBUG_ALWAYS, LOG_ERR, "Invalid priority `%s`!", priority);
goto end;
}
}
/* Shutdown properly. */
- ifdebug(CONNECTIONS)
+ if(debug_level >= DEBUG_CONNECTIONS)
devops.dump_stats();
close_network_connections();
end:
- logger(LOG_NOTICE, "Terminating");
+ exit_control();
-#ifndef HAVE_MINGW
- remove_pid(pidfilename);
-#endif
+end_nonet:
+ logger(DEBUG_ALWAYS, LOG_NOTICE, "Terminating");
free(priority);
- EVP_cleanup();
- ENGINE_cleanup();
- CRYPTO_cleanup_all_ex_data();
- ERR_remove_state(0);
- ERR_free_strings();
+ crypto_exit();
exit_configuration(&config_tree);
- list_free(cmdline_conf);
+ free(cmdline_conf);
free_names();
return status;
projects / tinc / blobdiff