X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Ftincd.c;h=1a9bad0d55cea46abe899685bd89ecfa80d1b2d6;hb=7ea85043ac1fb2096baea44f6b0af27ac0d0b2cf;hp=1f3644270aa44a715db950bbadd590faf9939cd4;hpb=ab7c61b06f6c6e991225f2fcc32d02b8e1084aee;p=tinc diff --git a/src/tincd.c b/src/tincd.c index 1f364427..1a9bad0d 100644 --- a/src/tincd.c +++ b/src/tincd.c @@ -2,6 +2,7 @@ tincd.c -- the main file for tincd Copyright (C) 1998-2005 Ivo Timmermans 2000-2009 Guus Sliepen + 2008 Max Rijevski 2009 Michael Tokarev This program is free software; you can redistribute it and/or modify @@ -30,12 +31,6 @@ #include #endif -#include -#include -#include -#include -#include - #include LZO1X_H #ifndef HAVE_MINGW @@ -45,9 +40,10 @@ #endif #include -#include "pidfile.h" #include "conf.h" +#include "control.h" +#include "crypto.h" #include "device.h" #include "logger.h" #include "net.h" @@ -66,12 +62,6 @@ 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; - /* If nonzero, use null ciphers and skip all key exchanges. */ bool bypass_security = false; @@ -88,7 +78,7 @@ static const char *switchuser = NULL; bool use_logfile = false; char *identname = NULL; /* program name for syslog */ -char *pidfilename = NULL; /* pid file location */ +char *controlsocketname = NULL; /* control socket location */ char *logfilename = NULL; /* log file location */ char **g_argv; /* a copy of the cmdline arguments */ @@ -96,19 +86,17 @@ 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}, + {"controlsocket", required_argument, NULL, 5}, {NULL, 0, NULL, 0} }; @@ -117,36 +105,32 @@ static struct WSAData wsa_state; CRITICAL_SECTION mutex; #endif -static void usage(bool status) -{ +static void usage(bool status) { if(status) - fprintf(stderr, _("Try `%s --help\' for more information.\n"), + 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" - " -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")); + 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" + " -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" + " --controlsocket=FILENAME Open control socket at FILENAME.\n" + " --bypass-security Disables meta protocol security, for debugging.\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"); } } -static bool parse_options(int argc, char **argv) -{ +static bool parse_options(int argc, char **argv) { int r; int option_index = 0; - while((r = getopt_long(argc, argv, "c:DLd::k::n:K::RU:", long_options, &option_index)) != EOF) { + while((r = getopt_long(argc, argv, "c:DLd::n:RU:", long_options, &option_index)) != EOF) { switch (r) { case 0: /* long option */ break; @@ -161,7 +145,7 @@ static bool parse_options(int argc, char **argv) case 'L': /* no detach */ #ifndef HAVE_MLOCKALL - logger(LOG_ERR, _("%s not supported on this platform"), "mlockall()"); + logger(LOG_ERR, "%s not supported on this platform", "mlockall()"); return false; #else do_mlock = true; @@ -175,62 +159,10 @@ static bool parse_options(int argc, char **argv) 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 = xstrdup(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(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; @@ -257,8 +189,8 @@ static bool parse_options(int argc, char **argv) logfilename = xstrdup(optarg); break; - case 5: /* write PID to a file */ - pidfilename = xstrdup(optarg); + case 5: /* open control socket here */ + controlsocketname = xstrdup(optarg); break; case '?': @@ -273,119 +205,14 @@ static bool parse_options(int argc, char **argv) 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; - - 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. -*/ -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")); - -#ifdef HAVE_FCHMOD - /* Make it unreadable for others. */ - fchmod(fileno(f), 0600); -#endif - - 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(disable_old_keys(f)) - fprintf(stderr, _("Warning: old key(s) found and disabled.\n")); - - PEM_write_RSAPublicKey(f, rsa_key); - fclose(f); - free(filename); - if(name) - free(name); - - return true; -} - /* Set all files and paths according to netname */ -static void make_names(void) -{ +static void make_names(void) { #ifdef HAVE_MINGW HKEY key; char installdir[1024] = ""; - long len = sizeof(installdir); + long len = sizeof installdir; #endif if(netname) @@ -411,8 +238,8 @@ static void make_names(void) } #endif - if(!pidfilename) - xasprintf(&pidfilename, LOCALSTATEDIR "/run/%s.pid", identname); + if(!controlsocketname) + xasprintf(&controlsocketname, "%s/run/%s.control/socket", LOCALSTATEDIR, identname); if(!logfilename) xasprintf(&logfilename, LOCALSTATEDIR "/log/%s.log", identname); @@ -421,7 +248,7 @@ static void make_names(void) if(!confbase) xasprintf(&confbase, CONFDIR "/tinc/%s", netname); else - logger(LOG_INFO, _("Both netname and configuration directory given, using the latter...")); + logger(LOG_INFO, "Both netname and configuration directory given, using the latter..."); } else { if(!confbase) xasprintf(&confbase, CONFDIR "/tinc"); @@ -431,7 +258,7 @@ static void make_names(void) static void free_names() { if (identname) free(identname); if (netname) free(netname); - if (pidfilename) free(pidfilename); + if (controlsocketname) free(controlsocketname); if (logfilename) free(logfilename); if (confbase) free(confbase); } @@ -439,11 +266,11 @@ static void free_names() { static bool drop_privs() { #ifdef HAVE_MINGW if (switchuser) { - logger(LOG_ERR, _("%s not supported on this platform"), "-U"); + 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"); + logger(LOG_ERR, "%s not supported on this platform", "-R"); return false; } #else @@ -451,13 +278,13 @@ static bool drop_privs() { if (switchuser) { struct passwd *pw = getpwnam(switchuser); if (!pw) { - logger(LOG_ERR, _("unknown user `%s'"), switchuser); + 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"), + logger(LOG_ERR, "System call `%s' failed: %s", "initgroups", strerror(errno)); return false; } @@ -467,7 +294,7 @@ static bool drop_privs() { if (do_chroot) { tzset(); /* for proper timestamps in logs */ if (chroot(confbase) != 0 || chdir("/") != 0) { - logger(LOG_ERR, _("System call `%s' failed: %s"), + logger(LOG_ERR, "System call `%s' failed: %s", "chroot", strerror(errno)); return false; } @@ -476,7 +303,7 @@ static bool drop_privs() { } if (switchuser) if (setuid(uid) != 0) { - logger(LOG_ERR, _("System call `%s' failed: %s"), + logger(LOG_ERR, "System call `%s' failed: %s", "setuid", strerror(errno)); return false; } @@ -493,27 +320,22 @@ static bool drop_privs() { # define setpriority(level) nice(level) #endif -int main(int argc, char **argv) -{ +int main(int argc, char **argv) { program_name = argv[0]; - setlocale(LC_ALL, ""); - bindtextdomain(PACKAGE, LOCALEDIR); - textdomain(PACKAGE); - if(!parse_options(argc, argv)) return 1; make_names(); if(show_version) { - printf(_("%s version %s (built %s %s, protocol %d)\n"), PACKAGE, + printf("%s version %s (built %s %s, protocol %d)\n", PACKAGE, VERSION, __DATE__, __TIME__, PROT_CURRENT); - printf(_("Copyright (C) 1998-2009 Ivo Timmermans, Guus Sliepen and others.\n" + printf("Copyright (C) 1998-2009 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")); + "see the file COPYING for details.\n"); return 0; } @@ -523,40 +345,36 @@ int main(int argc, char **argv) return 0; } - if(kill_tincd) - return !kill_other(kill_tincd); - openlogger("tinc", use_logfile?LOGMODE_FILE:LOGMODE_STDERR); + if(!event_init()) { + logger(LOG_ERR, "Error initializing libevent!"); + return 1; + } + + if(!init_control()) + return 1; + 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); - } + srand(time(NULL)); + crypto_init(); if(!read_server_config()) return 1; if(lzo_init() != LZO_E_OK) { - logger(LOG_ERR, _("Error initializing LZO compressor!")); + logger(LOG_ERR, "Error initializing LZO compressor!"); return 1; } #ifdef HAVE_MINGW if(WSAStartup(MAKEWORD(2, 2), &wsa_state)) { - logger(LOG_ERR, _("System call `%s' failed: %s"), "WSAStartup", winerror(GetLastError())); + logger(LOG_ERR, "System call `%s' failed: %s", "WSAStartup", winerror(GetLastError())); return 1; } @@ -566,8 +384,7 @@ int main(int argc, char **argv) return 1; } -int main2(int argc, char **argv) -{ +int main2(int argc, char **argv) { InitializeCriticalSection(&mutex); EnterCriticalSection(&mutex); #endif @@ -580,7 +397,7 @@ int main2(int argc, char **argv) * 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(LOG_ERR, "System call `%s' failed: %s", "mlockall", strerror(errno)); return 1; } @@ -607,7 +424,7 @@ int main2(int argc, char **argv) else if(!strcasecmp(priority, "High")) setpriority(HIGH_PRIORITY_CLASS); else { - logger(LOG_ERR, _("Invalid priority `%s`!"), priority); + logger(LOG_ERR, "Invalid priority `%s`!", priority); goto end; } } @@ -628,17 +445,13 @@ int main2(int argc, char **argv) close_network_connections(); end: - logger(LOG_NOTICE, _("Terminating")); + logger(LOG_NOTICE, "Terminating"); #ifndef HAVE_MINGW - remove_pid(pidfilename); + exit_control(); #endif - EVP_cleanup(); - ENGINE_cleanup(); - CRYPTO_cleanup_all_ex_data(); - ERR_remove_state(0); - ERR_free_strings(); + crypto_exit(); exit_configuration(&config_tree); free_names();