/*
tincd.c -- the main file for tincd
Copyright (C) 1998-2005 Ivo Timmermans
- 2000-2016 Guus Sliepen <guus@tinc-vpn.org>
+ 2000-2022 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>
#define _P1003_1B_VISIBLE
#endif
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-
#ifdef HAVE_LZO
#include LZO1X_H
#endif
+#ifdef HAVE_LZ4
+#include <lz4.h>
+#endif
+
#ifndef HAVE_MINGW
#include <pwd.h>
#include <grp.h>
#endif
#include "conf.h"
-#include "control.h"
#include "crypto.h"
-#include "device.h"
#include "event.h"
#include "logger.h"
#include "names.h"
#include "net.h"
-#include "netutl.h"
#include "process.h"
#include "protocol.h"
#include "utils.h"
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"
- " -n, --net=NETNAME Connect to net NETNAME.\n"
+ static const char *message =
+ "Usage: %s [option]...\n"
+ "\n"
+ " -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"
#ifdef HAVE_MLOCKALL
- " -L, --mlock Lock tinc into main memory.\n"
+ " -L, --mlock Lock tinc into main memory.\n"
#endif
- " --logfile[=FILENAME] Write log entries to a logfile.\n"
- " -s --syslog Use syslog instead of stderr with --no-detach.\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"
+ " --logfile[=FILENAME] Write log entries to a logfile.\n"
+ " -s --syslog Use syslog instead of stderr with --no-detach.\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"
#ifndef HAVE_MINGW
- " -R, --chroot chroot to NET dir at startup.\n"
- " -U, --user=USER setuid to given USER at startup.\n"
+ " -R, --chroot chroot to NET dir at startup.\n"
+ " -U, --user=USER setuid to given USER at startup.\n"
#endif
- " --help Display this help and exit.\n"
- " --version Output version information and exit.\n\n");
- printf("Report bugs to tinc@tinc-vpn.org.\n");
+ " --help Display this help and exit.\n"
+ " --version Output version information and exit.\n"
+ "\n"
+ "Report bugs to tinc@tinc-vpn.org.\n";
+
+ printf(message, program_name);
}
}
int option_index = 0;
int lineno = 0;
- cmdline_conf = list_alloc((list_action_t)free_config);
-
while((r = getopt_long(argc, argv, "c:DLd::n:so:RU:", long_options, &option_index)) != EOF) {
switch(r) {
case 0: /* long option */
break;
case 'c': /* config file */
+ free(confbase);
confbase = xstrdup(optarg);
break;
case 'L': /* no detach */
#ifndef HAVE_MLOCKALL
logger(DEBUG_ALWAYS, LOG_ERR, "The %s option is not supported on this platform.", argv[optind - 1]);
- return false;
+ goto exit_fail;
#else
do_mlock = true;
break;
break;
case 'n': /* net name given */
+ free(netname);
netname = xstrdup(optarg);
break;
cfg = parse_config_line(optarg, NULL, ++lineno);
if(!cfg) {
- return false;
+ goto exit_fail;
}
- list_insert_tail(cmdline_conf, cfg);
+ list_insert_tail(&cmdline_conf, cfg);
break;
#ifdef HAVE_MINGW
case 'R':
case 'U':
logger(DEBUG_ALWAYS, LOG_ERR, "The %s option is not supported on this platform.", argv[optind - 1]);
- return false;
+ goto exit_fail;
#else
case 'R': /* chroot to NETNAME dir */
}
if(optarg) {
+ free(logfilename);
logfilename = xstrdup(optarg);
}
break;
case 5: /* open control socket here */
+ free(pidfilename);
pidfilename = xstrdup(optarg);
break;
case '?': /* wrong options */
usage(true);
- return false;
+ goto exit_fail;
default:
break;
if(optind < argc) {
fprintf(stderr, "%s: unrecognized argument '%s'\n", argv[0], argv[optind]);
usage(true);
- return false;
+ goto exit_fail;
}
if(!netname && (netname = getenv("NETNAME"))) {
if(netname && !check_netname(netname, false)) {
fprintf(stderr, "Invalid character in netname!\n");
- return false;
+ goto exit_fail;
}
if(netname && !check_netname(netname, true)) {
}
return true;
+
+exit_fail:
+ free_names();
+ list_empty_list(&cmdline_conf);
+ return false;
}
static bool drop_privs(void) {
uid = pw->pw_uid;
- if(initgroups(switchuser, pw->pw_gid) != 0 ||
+ // The second parameter to initgroups on macOS requires int,
+ // but __gid_t is unsigned int. There's not much we can do here.
+ if(initgroups(switchuser, pw->pw_gid) != 0 || // NOLINT(bugprone-narrowing-conversions)
setgid(pw->pw_gid) != 0) {
logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s",
"initgroups", strerror(errno));
# define setpriority(level) !SetPriorityClass(GetCurrentProcess(), (level))
static void stop_handler(void *data, int flags) {
+ (void)data;
+ (void)flags;
+
event_exit();
}
static BOOL WINAPI console_ctrl_handler(DWORD type) {
+ (void)type;
+
logger(DEBUG_ALWAYS, LOG_NOTICE, "Got console shutdown request");
if(WSASetEvent(stop_io.event) == FALSE) {
# define setpriority(level) (setpriority(PRIO_PROCESS, 0, (level)))
#endif
+static void cleanup(void) {
+ splay_empty_tree(&config_tree);
+ list_empty_list(&cmdline_conf);
+ free_names();
+}
+
int main(int argc, char **argv) {
program_name = argv[0];
}
if(show_version) {
- printf("%s version %s (built %s %s, protocol %d.%d)\n", PACKAGE,
- BUILD_VERSION, BUILD_DATE, BUILD_TIME, PROT_MAJOR, PROT_MINOR);
- printf("Copyright (C) 1998-2016 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");
-
+ static const char *message =
+ "%s version %s (built %s %s, protocol %d.%d)\n"
+ "Features:"
+#ifdef HAVE_OPENSSL
+ " openssl"
+#endif
+#ifdef HAVE_LIBGCRYPT
+ " libgcrypt"
+#endif
+#ifdef HAVE_LZO
+ " comp_lzo"
+#endif
+#ifdef HAVE_ZLIB
+ " comp_zlib"
+#endif
+#ifdef HAVE_LZ4
+ " comp_lz4"
+#endif
+#ifndef DISABLE_LEGACY
+ " legacy_protocol"
+#endif
+#ifdef ENABLE_JUMBOGRAMS
+ " jumbograms"
+#endif
+#ifdef ENABLE_TUNEMU
+ " tunemu"
+#endif
+#ifdef HAVE_MINIUPNPC
+ " miniupnpc"
+#endif
+#ifdef ENABLE_UML
+ " uml"
+#endif
+#ifdef ENABLE_VDE
+ " vde"
+#endif
+ "\n\n"
+ "Copyright (C) 1998-2021 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";
+
+ printf(message, PACKAGE, BUILD_VERSION, BUILD_DATE, BUILD_TIME, PROT_MAJOR, PROT_MINOR);
return 0;
}
}
make_names(true);
- chdir(confbase);
+ atexit(cleanup);
+
+ if(chdir(confbase) == -1) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Could not change to configuration directory: %s", strerror(errno));
+ return 1;
+ }
#ifdef HAVE_MINGW
unsetenv("LISTEN_PID");
#endif
- init_configuration(&config_tree);
-
- /* Slllluuuuuuurrrrp! */
-
gettimeofday(&now, NULL);
- srand(now.tv_sec + now.tv_usec);
crypto_init();
+ prng_init();
- if(!read_server_config()) {
+ if(!read_server_config(&config_tree)) {
return 1;
}
- if(!debug_level) {
- get_config_int(lookup_config(config_tree, "LogLevel"), &debug_level);
+ if(debug_level == DEBUG_NOTHING) {
+ int level = 0;
+
+ if(get_config_int(lookup_config(&config_tree, "LogLevel"), &level)) {
+ debug_level = level;
+ }
}
#ifdef HAVE_LZO
}
int main2(int argc, char **argv) {
+ (void)argc;
+ (void)argv;
#endif
char *priority = NULL;
/* Change process priority */
- if(get_config_string(lookup_config(config_tree, "ProcessPriority"), &priority)) {
+ if(get_config_string(lookup_config(&config_tree, "ProcessPriority"), &priority)) {
if(!strcasecmp(priority, "Normal")) {
if(setpriority(NORMAL_PRIORITY_CLASS) != 0) {
logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s", "setpriority", strerror(errno));
logger(DEBUG_ALWAYS, LOG_NOTICE, "Ready");
if(umbilical) { // snip!
- write(umbilical, "", 1);
+ if(write(umbilical, "", 1) != 1) {
+ // Pipe full or broken, nothing we can do about it.
+ }
+
close(umbilical);
umbilical = 0;
}
crypto_exit();
- exit_configuration(&config_tree);
- free(cmdline_conf);
- free_names();
-
return status;
}
projects / tinc / blobdiff