X-Git-Url: https://git.librecmc.org/?p=oweals%2Ftinc.git;a=blobdiff_plain;f=src%2Ftincd.c;h=3debb3e48c2992204e6169d9df02da35c06123ff;hp=a8a0146dfc32a87813ab3d00f04a65c8e9b61ff5;hb=eeb505af36ba9496ad29b32cd0917afb8c6cd355;hpb=ec316aa32e8567395a88c4583007f01ffae008ce diff --git a/src/tincd.c b/src/tincd.c index a8a0146..3debb3e 100644 --- a/src/tincd.c +++ b/src/tincd.c @@ -1,7 +1,9 @@ /* tincd.c -- the main file for tincd Copyright (C) 1998-2005 Ivo Timmermans - 2000-2009 Guus Sliepen + 2000-2010 Guus Sliepen + 2008 Max Rijevski + 2009 Michael Tokarev 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 @@ -13,11 +15,9 @@ 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" @@ -37,7 +37,9 @@ #include #include +#ifdef HAVE_LZO #include LZO1X_H +#endif #ifndef HAVE_MINGW #include @@ -115,16 +117,16 @@ static struct option const long_options[] = { #ifdef HAVE_MINGW 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" + 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" @@ -136,13 +138,12 @@ static void usage(bool status) " -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")); + " --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; @@ -160,8 +161,13 @@ static bool parse_options(int argc, char **argv) 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) @@ -193,7 +199,7 @@ static bool parse_options(int argc, char **argv) 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"), + 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; @@ -215,7 +221,7 @@ static bool parse_options(int argc, char **argv) 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"), + fprintf(stderr, "Invalid argument `%s'; BITS must be a number equal to or greater than 512.\n", optarg); usage(true); return false; @@ -223,7 +229,7 @@ static bool parse_options(int argc, char **argv) generate_keys &= ~7; /* Round it to bytes */ } else - generate_keys = 1024; + generate_keys = 2048; break; case 'R': /* chroot to NETNAME dir */ @@ -270,8 +276,7 @@ static bool parse_options(int argc, char **argv) /* This function prettyprints the key generation process */ -static void indicator(int a, int b, void *p) -{ +static void indicator(int a, int b, void *p) { switch (a) { case 0: fprintf(stderr, "."); @@ -309,8 +314,7 @@ static void indicator(int a, int b, void *p) Generate a public/private RSA keypair, and ask for a file to store them in. */ -static bool keygen(int bits) -{ +static bool keygen(int bits) { RSA *rsa_key; FILE *f; char *name = NULL; @@ -319,27 +323,27 @@ static bool keygen(int bits) get_config_string(lookup_config(config_tree, "Name"), &name); if(name && !check_id(name)) { - fprintf(stderr, _("Invalid name for myself!\n")); + fprintf(stderr, "Invalid name for myself!\n"); return false; } - fprintf(stderr, _("Generating %d bits keys:\n"), bits); + 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")); + fprintf(stderr, "Error during key generation!\n"); return false; } else - fprintf(stderr, _("Done.\n")); + fprintf(stderr, "Done.\n"); - asprintf(&filename, "%s/rsa_key.priv", confbase); - f = ask_and_open(filename, _("private RSA key")); + 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")); + fprintf(stderr, "Warning: old key(s) found and disabled.\n"); #ifdef HAVE_FCHMOD /* Make it unreadable for others. */ @@ -351,17 +355,17 @@ static bool keygen(int bits) free(filename); if(name) - asprintf(&filename, "%s/hosts/%s", confbase, name); + xasprintf(&filename, "%s/hosts/%s", confbase, name); else - asprintf(&filename, "%s/rsa_key.pub", confbase); + xasprintf(&filename, "%s/rsa_key.pub", confbase); - f = ask_and_open(filename, _("public RSA key")); + 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")); + fprintf(stderr, "Warning: old key(s) found and disabled.\n"); PEM_write_RSAPublicKey(f, rsa_key); fclose(f); @@ -375,8 +379,7 @@ static bool keygen(int bits) /* 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] = ""; @@ -384,7 +387,7 @@ static void make_names(void) #endif if(netname) - asprintf(&identname, "tinc.%s", netname); + xasprintf(&identname, "tinc.%s", netname); else identname = xstrdup("tinc"); @@ -392,12 +395,12 @@ static void make_names(void) if(!RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\tinc", 0, KEY_READ, &key)) { if(!RegQueryValueEx(key, NULL, 0, 0, installdir, &len)) { if(!logfilename) - asprintf(&logfilename, "%s/log/%s.log", identname); + xasprintf(&logfilename, "%s/log/%s.log", identname); if(!confbase) { if(netname) - asprintf(&confbase, "%s/%s", installdir, netname); + xasprintf(&confbase, "%s/%s", installdir, netname); else - asprintf(&confbase, "%s", installdir); + xasprintf(&confbase, "%s", installdir); } } RegCloseKey(key); @@ -407,19 +410,19 @@ static void make_names(void) #endif if(!pidfilename) - asprintf(&pidfilename, LOCALSTATEDIR "/run/%s.pid", identname); + xasprintf(&pidfilename, LOCALSTATEDIR "/run/%s.pid", identname); if(!logfilename) - asprintf(&logfilename, LOCALSTATEDIR "/log/%s.log", identname); + xasprintf(&logfilename, LOCALSTATEDIR "/log/%s.log", identname); if(netname) { if(!confbase) - asprintf(&confbase, CONFDIR "/tinc/%s", netname); + 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) - asprintf(&confbase, CONFDIR "/tinc"); + xasprintf(&confbase, CONFDIR "/tinc"); } } @@ -434,11 +437,11 @@ 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 @@ -446,13 +449,14 @@ 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, _("%s failed"), "initgroups()"); + logger(LOG_ERR, "System call `%s' failed: %s", + "initgroups", strerror(errno)); return false; } endgrent(); @@ -460,8 +464,9 @@ static bool drop_privs() { } if (do_chroot) { tzset(); /* for proper timestamps in logs */ - if (chroot(confbase) != 0 || chdir(".") != 0) { - logger(LOG_ERR, _("%s failed"), "chroot()"); + if (chroot(confbase) != 0 || chdir("/") != 0) { + logger(LOG_ERR, "System call `%s' failed: %s", + "chroot", strerror(errno)); return false; } free(confbase); @@ -469,20 +474,25 @@ static bool drop_privs() { } if (switchuser) if (setuid(uid) != 0) { - logger(LOG_ERR, _("%s failed"), "setuid()"); + logger(LOG_ERR, "System call `%s' failed: %s", + "setuid", strerror(errno)); return false; } #endif return true; } -int main(int argc, char **argv) -{ - program_name = argv[0]; +#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) nice(level) +#endif - setlocale(LC_ALL, ""); - bindtextdomain(PACKAGE, LOCALEDIR); - textdomain(PACKAGE); +int main(int argc, char **argv) { + program_name = argv[0]; if(!parse_options(argc, argv)) return 1; @@ -490,13 +500,13 @@ int main(int argc, char **argv) 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) 1998-2010 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")); + "see the file COPYING for details.\n"); return 0; } @@ -511,20 +521,6 @@ int main(int argc, char **argv) openlogger("tinc", use_logfile?LOGMODE_FILE:LOGMODE_STDERR); - /* Lock all pages into memory if requested */ - - if(do_mlock) -#ifdef HAVE_MLOCKALL - if(mlockall(MCL_CURRENT | MCL_FUTURE)) { - logger(LOG_ERR, _("System call `%s' failed: %s"), "mlockall", - strerror(errno)); -#else - { - logger(LOG_ERR, _("mlockall() not supported on this platform!")); -#endif - return -1; - } - g_argv = argv; init_configuration(&config_tree); @@ -546,14 +542,16 @@ int main(int argc, char **argv) if(!read_server_config()) return 1; +#ifdef HAVE_LZO if(lzo_init() != LZO_E_OK) { - logger(LOG_ERR, _("Error initializing LZO compressor!")); + logger(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())); + logger(LOG_ERR, "System call `%s' failed: %s", "WSAStartup", winerror(GetLastError())); return 1; } @@ -563,26 +561,55 @@ 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 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; - /* drop privileges */ - if (!drop_privs()) - 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")) + setpriority(NORMAL_PRIORITY_CLASS); + else if(!strcasecmp(priority, "Low")) + setpriority(BELOW_NORMAL_PRIORITY_CLASS); + else if(!strcasecmp(priority, "High")) + setpriority(HIGH_PRIORITY_CLASS); + 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(); @@ -595,7 +622,7 @@ int main2(int argc, char **argv) close_network_connections(); end: - logger(LOG_NOTICE, _("Terminating")); + logger(LOG_NOTICE, "Terminating"); #ifndef HAVE_MINGW remove_pid(pidfilename);