12 #include <sys/socket.h>
18 #include <sys/prctl.h>
20 #include <sys/reboot.h>
22 #if defined(__FreeBSD__) || defined(__DragonFly__)
23 #include <sys/procctl.h>
30 #include "dinit-log.h"
31 #include "dinit-socket.h"
32 #include "static-string.h"
33 #include "dinit-utmp.h"
34 #include "options-processing.h"
39 * When running as the system init process, Dinit processes the following signals:
41 * SIGTERM - roll back services and then fork/exec /sbin/halt
42 * SIGINT - roll back services and then fork/exec /sbin/reboot
43 * SIGQUIT - exec() /sbin/shutdown without rolling back services
45 * It's an open question about whether Dinit should roll back services *before*
46 * running halt/reboot, since those commands should prompt rollback of services
47 * anyway. But it seems safe to do so, and it means the user can at least stop
48 * services even if the halt/reboot commands are unavailable for some reason.
53 using eventloop_t = dasynq::event_loop<dasynq::null_mutex>;
55 eventloop_t event_loop;
57 static void sigint_reboot_cb(eventloop_t &eloop) noexcept;
58 static void sigquit_cb(eventloop_t &eloop) noexcept;
59 static void sigterm_cb(eventloop_t &eloop) noexcept;
60 static void open_control_socket(bool report_ro_failure = true) noexcept;
61 static void close_control_socket() noexcept;
62 static void confirm_restart_boot() noexcept;
64 static void control_socket_cb(eventloop_t *loop, int fd);
69 static dirload_service_set *services;
71 static bool am_pid_one = false; // true if we are PID 1
72 static bool am_system_init = false; // true if we are the system init process
74 static bool did_log_boot = false;
75 static bool control_socket_open = false;
76 static bool external_log_open = false;
77 int active_control_conns = 0;
79 // Control socket path. We maintain a string (control_socket_str) in case we need
80 // to allocate storage, but control_socket_path is the authoritative value.
81 static const char *control_socket_path = SYSCONTROLSOCKET;
82 static std::string control_socket_str;
84 static const char *env_file_path = "/etc/dinit/environment";
86 static const char *log_path = "/dev/log";
87 static bool log_is_syslog = true; // if false, log is a file
89 static const char *user_home_path = nullptr;
91 // Set to true (when console_input_watcher is active) if console input becomes available
92 static bool console_input_ready = false;
94 // Get user home (and set user_home_path). (The return may become invalid after
95 // changing the environment (HOME variable) or using the getpwuid() function).
96 static const char * get_user_home()
98 if (user_home_path == nullptr) {
99 user_home_path = getenv("HOME");
100 if (user_home_path == nullptr) {
101 struct passwd * pwuid_p = getpwuid(getuid());
102 if (pwuid_p != nullptr) {
103 user_home_path = pwuid_p->pw_dir;
107 return user_home_path;
112 // Event-loop handler for a signal, which just delegates to a function (pointer).
113 class callback_signal_handler : public eventloop_t::signal_watcher_impl<callback_signal_handler>
115 using rearm = dasynq::rearm;
118 typedef void (*cb_func_t)(eventloop_t &);
124 callback_signal_handler() : cb_func(nullptr) { }
125 callback_signal_handler(cb_func_t pcb_func) : cb_func(pcb_func) { }
127 void set_cb_func(cb_func_t cb_func)
129 this->cb_func = cb_func;
132 rearm received(eventloop_t &eloop, int signo, siginfo_p siginfo)
139 // Event-loop handler for when a connection is made to the control socket.
140 class control_socket_watcher : public eventloop_t::fd_watcher_impl<control_socket_watcher>
142 using rearm = dasynq::rearm;
145 rearm fd_event(eventloop_t &loop, int fd, int flags) noexcept
147 control_socket_cb(&loop, fd);
152 // Watch for console input and set a flag when it is available.
153 class console_input_watcher : public eventloop_t::fd_watcher_impl<console_input_watcher>
155 using rearm = dasynq::rearm;
158 rearm fd_event(eventloop_t &loop, int fd, int flags) noexcept
160 console_input_ready = true;
161 return rearm::DISARM;
165 // Simple timer used to limit the amount of time waiting for the log flush to complete (at shutdown)
166 class log_flush_timer_t : public eventloop_t::timer_impl<log_flush_timer_t>
168 using rearm = dasynq::rearm;
173 rearm timer_expiry(eventloop_t &, int expiry_count)
176 return rearm::DISARM;
190 control_socket_watcher control_socket_io;
191 console_input_watcher console_input_io;
192 log_flush_timer_t log_flush_timer;
195 int dinit_main(int argc, char **argv)
199 am_pid_one = (getpid() == 1);
200 am_system_init = (getuid() == 0);
201 const char * env_file = nullptr;
202 bool control_socket_path_set = false;
203 bool env_file_set = false;
204 bool log_specified = false;
206 service_dir_opt service_dir_opts;
208 // list of services to start
209 list<const char *> services_to_start;
211 // Arguments, if given, specify a list of services to start.
212 // If we are running as init (PID=1), the Linux kernel gives us any command line arguments it was given
213 // but didn't recognize, including "single" (usually for "boot to single user mode" aka just start the
214 // shell). We can treat them as service names. In the worst case we can't find any of the named
215 // services, and so we'll start the "boot" service by default.
217 for (int i = 1; i < argc; i++) {
218 if (argv[i][0] == '-') {
220 if (strcmp(argv[i], "--env-file") == 0 || strcmp(argv[i], "-e") == 0) {
226 cerr << "dinit: '--env-file' (-e) requires an argument" << endl;
229 else if (strcmp(argv[i], "--services-dir") == 0 || strcmp(argv[i], "-d") == 0) {
231 service_dir_opts.set_specified_service_dir(argv[i]);
234 cerr << "dinit: '--services-dir' (-d) requires an argument" << endl;
238 else if (strcmp(argv[i], "--system") == 0 || strcmp(argv[i], "-s") == 0) {
239 am_system_init = true;
241 else if (strcmp(argv[i], "--user") == 0 || strcmp(argv[i], "-u") == 0) {
242 am_system_init = false;
244 else if (strcmp(argv[i], "--socket-path") == 0 || strcmp(argv[i], "-p") == 0) {
246 control_socket_path = argv[i];
247 control_socket_path_set = true;
250 cerr << "dinit: '--socket-path' (-p) requires an argument" << endl;
254 else if (strcmp(argv[i], "--log-file") == 0 || strcmp(argv[i], "-l") == 0) {
257 log_is_syslog = false;
258 log_specified = true;
261 cerr << "dinit: '--log-file' (-l) requires an argument" << endl;
265 else if (strcmp(argv[i], "--quiet") == 0 || strcmp(argv[i], "-q") == 0) {
266 console_service_status = false;
267 log_level[DLOG_CONS] = loglevel_t::ZERO;
269 else if (strcmp(argv[i], "--help") == 0) {
270 cout << "dinit, an init with dependency management\n"
271 " --help display help\n"
272 " --env-file <file>, -e <file>\n"
273 " environment variable initialisation file\n"
274 " --services-dir <dir>, -d <dir>\n"
275 " set base directory for service description\n"
276 " files (-d <dir>)\n"
277 " --system, -s run as the system service manager\n"
278 " --user, -u run as a user service manager\n"
279 " --socket-path <path>, -p <path>\n"
280 " path to control socket\n"
281 " --log-file <file>, -l <file> log to the specified file\n"
282 " --quiet, -q disable output to standard output\n"
283 " <service-name> start service with name <service-name>\n";
288 if (! am_system_init) {
289 cerr << "dinit: Unrecognized option: " << argv[i] << endl;
296 // LILO puts "auto" on the kernel command line for unattended boots; we'll filter it.
297 if (! am_pid_one || strcmp(argv[i], "auto") != 0) {
298 services_to_start.push_back(argv[i]);
301 services_to_start.push_back(argv[i]);
307 if (am_system_init) {
308 // setup STDIN, STDOUT, STDERR so that we can use them
309 int onefd = open("/dev/console", O_RDONLY, 0);
313 int twofd = open("/dev/console", O_RDWR, 0);
319 if (onefd > 2) close(onefd);
320 if (twofd > 2) close(twofd);
322 if (! env_file_set) {
323 env_file = env_file_path;
327 /* Set up signal handlers etc */
328 /* SIG_CHILD is ignored by default: good */
329 sigset_t sigwait_set;
330 sigemptyset(&sigwait_set);
331 sigaddset(&sigwait_set, SIGCHLD);
332 sigaddset(&sigwait_set, SIGINT);
333 sigaddset(&sigwait_set, SIGTERM);
334 if (am_pid_one) sigaddset(&sigwait_set, SIGQUIT);
335 sigprocmask(SIG_BLOCK, &sigwait_set, NULL);
337 // Terminal access control signals - we ignore these so that dinit can't be
338 // suspended if it writes to the terminal after some other process has claimed
340 signal(SIGTSTP, SIG_IGN);
341 signal(SIGTTIN, SIG_IGN);
342 signal(SIGTTOU, SIG_IGN);
344 signal(SIGPIPE, SIG_IGN);
346 if (! am_system_init && ! control_socket_path_set) {
347 const char * userhome = get_user_home();
348 if (userhome != nullptr) {
349 control_socket_str = userhome;
350 control_socket_str += "/.dinitctl";
351 control_socket_path = control_socket_str.c_str();
355 if (services_to_start.empty()) {
356 services_to_start.push_back("boot");
359 // Set up signal handlers
360 callback_signal_handler sigterm_watcher {sigterm_cb};
361 callback_signal_handler sigint_watcher;
362 callback_signal_handler sigquit_watcher;
365 sigint_watcher.set_cb_func(sigint_reboot_cb);
366 sigquit_watcher.set_cb_func(sigquit_cb);
369 sigint_watcher.set_cb_func(sigterm_cb);
372 sigint_watcher.add_watch(event_loop, SIGINT);
373 sigterm_watcher.add_watch(event_loop, SIGTERM);
376 // PID 1: we may ask for console input; SIGQUIT exec's shutdown
377 console_input_io.add_watch(event_loop, STDIN_FILENO, dasynq::IN_EVENTS, false);
378 sigquit_watcher.add_watch(event_loop, SIGQUIT);
379 // (If not PID 1, we instead just let SIGQUIT perform the default action.)
382 // Try to open control socket (may fail due to readonly filesystem)
383 open_control_socket(false);
386 if (am_system_init) {
387 // Disable non-critical kernel output to console
388 klogctl(6 /* SYSLOG_ACTION_CONSOLE_OFF */, nullptr, 0);
389 // Make ctrl+alt+del combination send SIGINT to PID 1 (this process)
390 reboot(RB_DISABLE_CAD);
393 // Mark ourselves as a subreaper. This means that if a process we start double-forks, the
394 // orphaned child will re-parent to us rather than to PID 1 (although that could be us too).
395 prctl(PR_SET_CHILD_SUBREAPER, 1);
396 #elif defined(__FreeBSD__) || defined(__DragonFly__)
397 // Documentation (man page) for this kind of sucks. PROC_REAP_ACQUIRE "acquires the reaper status for
398 // the current process" but does that mean the first two arguments still need valid values to be
399 // supplied? We'll play it safe and explicitly target our own process:
400 procctl(P_PID, getpid(), PROC_REAP_ACQUIRE, NULL);
403 log_flush_timer.add_timer(event_loop, dasynq::clock_type::MONOTONIC);
405 service_dir_opts.build_paths();
407 /* start requested services */
408 services = new dirload_service_set(std::move(service_dir_opts.get_paths()));
410 init_log(services, log_is_syslog);
411 if (am_system_init) {
412 log(loglevel_t::INFO, false, "starting system");
415 // Only try to set up the external log now if we aren't the system init. (If we are the
416 // system init, wait until the log service starts).
417 if (! am_system_init && log_specified) setup_external_log();
419 if (env_file != nullptr) {
420 read_env_file(env_file);
423 for (auto svc : services_to_start) {
425 services->start_service(svc);
426 // Note in general if we fail to start a service we don't need any special error handling,
427 // since we either leave other services running or, if it was the only service, then no
428 // services will be running and we will process normally (reboot if system process,
429 // exit if user process).
431 catch (service_not_found &snf) {
432 log(loglevel_t::ERROR, snf.service_name, ": Could not find service description.");
434 catch (service_load_exc &sle) {
435 log(loglevel_t::ERROR, sle.service_name, ": ", sle.exc_description);
437 catch (std::bad_alloc &badalloce) {
438 log(loglevel_t::ERROR, "Out of memory when trying to start service: ", svc, ".");
445 // Process events until all services have terminated.
446 while (services->count_active_services() != 0) {
450 shutdown_type_t shutdown_type = services->get_shutdown_type();
451 if (shutdown_type == shutdown_type_t::REMAIN) {
456 log_msg_begin(loglevel_t::INFO, "No more active services.");
458 if (shutdown_type == shutdown_type_t::REBOOT) {
459 log_msg_end(" Will reboot.");
461 else if (shutdown_type == shutdown_type_t::HALT) {
462 log_msg_end(" Will halt.");
464 else if (shutdown_type == shutdown_type_t::POWEROFF) {
465 log_msg_end(" Will power down.");
469 log_flush_timer.reset();
470 log_flush_timer.arm_timer_rel(event_loop, timespec{5,0}); // 5 seconds
471 while (! is_log_flushed() && ! log_flush_timer.has_expired()) {
475 close_control_socket();
478 if (shutdown_type == shutdown_type_t::NONE) {
479 // Services all stopped but there was no shutdown issued. Inform user, wait for ack, and
480 // re-start boot sequence.
481 sync(); // Sync to minimise data loss if user elects to power off / hard reset
482 confirm_restart_boot();
483 if (services->count_active_services() != 0) {
484 // Recovery service started
487 shutdown_type = services->get_shutdown_type();
488 if (shutdown_type == shutdown_type_t::NONE) {
490 services->start_service("boot");
491 goto run_event_loop; // yes, the "evil" goto
494 // Now what do we do? try to reboot, but wait for user ack to avoid boot loop.
495 log(loglevel_t::ERROR, "Could not start 'boot' service. Will attempt reboot.");
496 shutdown_type = shutdown_type_t::REBOOT;
501 const char * cmd_arg;
502 if (shutdown_type == shutdown_type_t::HALT) {
505 else if (shutdown_type == shutdown_type_t::REBOOT) {
513 // Fork and execute dinit-reboot.
514 constexpr auto shutdown_exec = literal(SBINDIR) + "/shutdown";
515 execl(shutdown_exec.c_str(), shutdown_exec.c_str(), "--system", cmd_arg, nullptr);
516 log(loglevel_t::ERROR, (literal("Could not execute ") + SBINDIR + "/shutdown: ").c_str(),
519 // PID 1 must not actually exit, although we should never reach this point:
524 else if (shutdown_type == shutdown_type_t::REBOOT) {
525 // Non-system-process. If we got SIGINT, let's die due to it:
526 sigset_t sigwait_set_int;
527 sigemptyset(&sigwait_set_int);
528 sigaddset(&sigwait_set_int, SIGINT);
530 sigprocmask(SIG_UNBLOCK, &sigwait_set_int, NULL);
536 // Log a parse error when reading the environment file.
537 static void log_bad_env(int linenum)
539 log(loglevel_t::ERROR, "invalid environment variable setting in environment file (line ", linenum, ")");
542 // Read and set environment variables from a file. May throw std::bad_alloc, std::system_error.
543 void read_env_file(const char *env_file_path)
545 // Note that we can't use the log in this function; it hasn't been initialised yet.
547 std::ifstream env_file(env_file_path);
548 if (! env_file) return;
550 env_file.exceptions(std::ios::badbit);
552 auto &clocale = std::locale::classic();
556 while (std::getline(env_file, line)) {
558 auto lpos = line.begin();
559 auto lend = line.end();
560 while (lpos != lend && std::isspace(*lpos, clocale)) {
567 log_bad_env(linenum);
570 auto name_begin = lpos++;
571 // skip until '=' or whitespace:
572 while (lpos != lend && *lpos != '=' && ! std::isspace(*lpos, clocale)) ++lpos;
573 auto name_end = lpos;
575 while (lpos != lend && std::isspace(*lpos, clocale)) ++lpos;
577 log_bad_env(linenum);
582 auto val_begin = lpos;
583 while (lpos != lend && *lpos != '\n') ++lpos;
586 std::string name = line.substr(name_begin - line.begin(), name_end - name_begin);
587 std::string value = line.substr(val_begin - line.begin(), val_end - val_begin);
588 if (setenv(name.c_str(), value.c_str(), true) == -1) {
589 throw std::system_error(errno, std::system_category());
596 // Get user confirmation before proceeding with restarting boot sequence.
597 // Returns after confirmation, possibly with shutdown type altered.
598 static void confirm_restart_boot() noexcept
600 // Bypass log; we want to make certain the message is seen:
601 std::cout << "All services have stopped with no shutdown issued; boot failure?\n";
603 // Drain input, set non-canonical input mode (receive characters as they are typed)
604 struct termios term_attr;
605 if (tcgetattr(STDIN_FILENO, &term_attr) != 0) {
607 std::cout << "Halting." << std::endl;
608 services->stop_all_services(shutdown_type_t::HALT);
611 term_attr.c_lflag &= ~ICANON;
612 tcsetattr(STDIN_FILENO, TCSAFLUSH, &term_attr);
614 // Set non-blocking mode
615 int origFlags = fcntl(STDIN_FILENO, F_GETFL);
616 fcntl(STDIN_FILENO, F_SETFL, origFlags | O_NONBLOCK);
619 std::cout << "Choose: (r)eboot, r(e)covery, re(s)tart boot sequence, (p)ower off? " << std::flush;
621 console_input_io.set_enabled(event_loop, true);
624 } while (! console_input_ready && services->get_shutdown_type() == shutdown_type_t::NONE);
625 console_input_io.set_enabled(event_loop, false);
627 // We either have input, or shutdown type has been set, or both.
628 if (console_input_ready) {
629 console_input_ready = false;
631 int r = read(STDIN_FILENO, buf, 1); // read a single character, to make sure we wait for input
633 std::cout << "\n"; // force new line after input
634 if (buf[0] == 'r' || buf[0] == 'R') {
635 services->stop_all_services(shutdown_type_t::REBOOT);
637 else if (buf[0] == 'e' || buf[0] == 'E') {
639 services->start_service("recovery");
642 std::cout << "Unable to start recovery service.\n";
646 else if (buf[0] == 's' || buf[0] == 'S') {
647 // nothing - leave no shutdown type
649 else if (buf[0] == 'p' || buf[0] == 'P') {
650 services->stop_all_services(shutdown_type_t::POWEROFF);
656 tcflush(STDIN_FILENO, TCIFLUSH); // discard the rest of input
659 term_attr.c_lflag |= ICANON;
660 tcsetattr(STDIN_FILENO, TCSANOW, &term_attr);
661 fcntl(STDIN_FILENO, F_SETFL, origFlags);
664 // Callback for control socket
665 static void control_socket_cb(eventloop_t *loop, int sockfd)
667 // Considered keeping a limit the number of active connections, however, there doesn't
668 // seem much to be gained from that. Only root can create connections and not being
669 // able to establish a control connection is as much a denial-of-service as is not being
670 // able to start a service due to lack of fd's.
672 // Accept a connection
673 int newfd = dinit_accept4(sockfd, nullptr, nullptr, SOCK_NONBLOCK | SOCK_CLOEXEC);
677 new control_conn_t(*loop, services, newfd); // will delete itself when it's finished
679 catch (std::exception &exc) {
680 log(loglevel_t::ERROR, "Accepting control connection: ", exc.what());
686 // Callback when the root filesystem is read/write:
687 void rootfs_is_rw() noexcept
689 open_control_socket(true);
690 if (! did_log_boot) {
691 did_log_boot = log_boot();
695 // Open/create the control socket, normally /dev/dinitctl, used to allow client programs to connect
696 // and issue service orders and shutdown commands etc. This can safely be called multiple times;
697 // once the socket has been successfully opened, further calls have no effect.
698 static void open_control_socket(bool report_ro_failure) noexcept
700 if (control_socket_open) {
701 struct stat stat_buf;
702 if (stat(control_socket_path, &stat_buf) != 0 && errno == ENOENT) {
703 // Looks like our control socket has disappeared from the filesystem. Close our control
704 // socket and re-create it:
705 control_socket_io.deregister(event_loop);
706 close(control_socket_io.get_watched_fd());
707 control_socket_open = false; // now re-open below
711 if (! control_socket_open) {
712 const char * saddrname = control_socket_path;
713 size_t saddrname_len = strlen(saddrname);
714 uint sockaddr_size = offsetof(struct sockaddr_un, sun_path) + saddrname_len + 1;
716 struct sockaddr_un * name = static_cast<sockaddr_un *>(malloc(sockaddr_size));
717 if (name == nullptr) {
718 log(loglevel_t::ERROR, "Opening control socket: out of memory");
722 if (am_system_init) {
723 // Unlink any stale control socket file, but only if we are system init, since otherwise
724 // the 'stale' file may not be stale at all:
728 name->sun_family = AF_UNIX;
729 memcpy(name->sun_path, saddrname, saddrname_len + 1);
731 int sockfd = dinit_socket(AF_UNIX, SOCK_STREAM, 0, SOCK_NONBLOCK | SOCK_CLOEXEC);
733 log(loglevel_t::ERROR, "Error creating control socket: ", strerror(errno));
738 if (bind(sockfd, (struct sockaddr *) name, sockaddr_size) == -1) {
739 if (errno != EROFS || report_ro_failure) {
740 log(loglevel_t::ERROR, "Error binding control socket: ", strerror(errno));
749 // No connections can be made until we listen, so it is fine to change the permissions now
750 // (and anyway there is no way to atomically create the socket and set permissions):
751 if (chmod(saddrname, S_IRUSR | S_IWUSR) == -1) {
752 log(loglevel_t::ERROR, "Error setting control socket permissions: ", strerror(errno));
757 if (listen(sockfd, 10) == -1) {
758 log(loglevel_t::ERROR, "Error listening on control socket: ", strerror(errno));
764 control_socket_io.add_watch(event_loop, sockfd, dasynq::IN_EVENTS);
765 control_socket_open = true;
767 catch (std::exception &e)
769 log(loglevel_t::ERROR, "Could not setup I/O on control socket: ", e.what());
775 static void close_control_socket() noexcept
777 if (control_socket_open) {
778 int fd = control_socket_io.get_watched_fd();
779 control_socket_io.deregister(event_loop);
782 // Unlink the socket:
783 unlink(control_socket_path);
785 control_socket_open = false;
789 void setup_external_log() noexcept
791 if (! external_log_open) {
793 const char * saddrname = log_path;
794 size_t saddrname_len = strlen(saddrname);
795 uint sockaddr_size = offsetof(struct sockaddr_un, sun_path) + saddrname_len + 1;
797 struct sockaddr_un * name = static_cast<sockaddr_un *>(malloc(sockaddr_size));
798 if (name == nullptr) {
799 log(loglevel_t::ERROR, "Connecting to log socket: out of memory");
803 name->sun_family = AF_UNIX;
804 memcpy(name->sun_path, saddrname, saddrname_len + 1);
806 int sockfd = dinit_socket(AF_UNIX, SOCK_DGRAM, 0, SOCK_NONBLOCK | SOCK_CLOEXEC);
808 log(loglevel_t::ERROR, "Error creating log socket: ", strerror(errno));
813 if (connect(sockfd, (struct sockaddr *) name, sockaddr_size) == 0 || errno == EINPROGRESS) {
814 // For EINPROGRESS, connection is still being established; however, we can select on
815 // the file descriptor so we will be notified when it's ready. In other words we can
816 // basically use it anyway.
818 setup_main_log(sockfd);
819 external_log_open = true;
821 catch (std::exception &e) {
822 log(loglevel_t::ERROR, "Setting up log failed: ", e.what());
827 // Note if connect fails, we haven't warned at all, because the syslog server might not
836 int log_fd = open(log_path, O_WRONLY | O_CREAT | O_APPEND | O_NONBLOCK | O_CLOEXEC, 0644);
839 setup_main_log(log_fd);
840 external_log_open = true;
842 catch (std::exception &e) {
843 log(loglevel_t::ERROR, "Setting up log failed: ", e.what());
848 // log failure to log? It makes more sense than first appears, because we also log
850 log(loglevel_t::ERROR, "Setting up log failed: ", strerror(errno));
856 /* handle SIGINT signal (generated by Linux kernel when ctrl+alt+del pressed) */
857 static void sigint_reboot_cb(eventloop_t &eloop) noexcept
859 services->stop_all_services(shutdown_type_t::REBOOT);
862 /* handle SIGQUIT (if we are system init) */
863 static void sigquit_cb(eventloop_t &eloop) noexcept
865 // This performs an immediate shutdown, without service rollback.
866 close_control_socket();
867 constexpr auto shutdown_exec = literal(SBINDIR) + "/shutdown";
868 execl(shutdown_exec.c_str(), shutdown_exec.c_str(), "--system", (char *) 0);
869 log(loglevel_t::ERROR, literal("Error executing ") + SBINDIR + "/sbin/shutdown: ", strerror(errno));
870 sync(); // since a hard poweroff might be required at this point...
873 /* handle SIGTERM/SIGQUIT(non-system-daemon) - stop all services and shut down */
874 static void sigterm_cb(eventloop_t &eloop) noexcept
876 services->stop_all_services();