1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
28 #include <sys/inotify.h>
29 #include <sys/epoll.h>
31 #include <sys/reboot.h>
32 #include <sys/ioctl.h>
36 #include <sys/types.h>
39 #include <sys/timerfd.h>
45 #include "sd-daemon.h"
47 #include "sd-messages.h"
50 #include "transaction.h"
57 #include "ratelimit.h"
58 #include "locale-setup.h"
59 #include "mount-setup.h"
60 #include "unit-name.h"
62 #include "path-lookup.h"
64 #include "exit-status.h"
67 #include "cgroup-util.h"
68 #include "path-util.h"
70 #include "boot-timestamps.h"
72 #include "bus-errors.h"
73 #include "bus-error.h"
76 #include "dbus-unit.h"
78 #include "dbus-manager.h"
79 #include "bus-kernel.h"
80 #include "time-util.h"
82 /* Initial delay and the interval for printing status messages about running jobs */
83 #define JOBS_IN_PROGRESS_WAIT_USEC (5*USEC_PER_SEC)
84 #define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3)
85 #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3
87 static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata);
88 static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata);
89 static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata);
90 static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata);
91 static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata);
92 static int manager_dispatch_run_queue(sd_event_source *source, void *userdata);
94 static int manager_watch_jobs_in_progress(Manager *m) {
99 if (m->jobs_in_progress_event_source)
102 next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC;
103 return sd_event_add_time(
105 &m->jobs_in_progress_event_source,
108 manager_dispatch_jobs_in_progress, m);
111 #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1))
113 static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) {
116 assert(buflen >= CYLON_BUFFER_EXTRA + width + 1);
117 assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */
121 p = mempset(p, ' ', pos-2);
122 p = stpcpy(p, ANSI_RED_ON);
126 if (pos > 0 && pos <= width) {
127 p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON);
131 p = stpcpy(p, ANSI_HIGHLIGHT_OFF);
134 p = stpcpy(p, ANSI_RED_ON);
137 p = mempset(p, ' ', width-1-pos);
138 strcpy(p, ANSI_HIGHLIGHT_OFF);
142 void manager_flip_auto_status(Manager *m, bool enable) {
146 if (m->show_status == SHOW_STATUS_AUTO)
147 manager_set_show_status(m, SHOW_STATUS_TEMPORARY);
149 if (m->show_status == SHOW_STATUS_TEMPORARY)
150 manager_set_show_status(m, SHOW_STATUS_AUTO);
154 static void manager_print_jobs_in_progress(Manager *m) {
155 _cleanup_free_ char *job_of_n = NULL;
158 unsigned counter = 0, print_nr;
159 char cylon[6 + CYLON_BUFFER_EXTRA + 1];
161 char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit";
166 manager_flip_auto_status(m, true);
168 print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs;
170 HASHMAP_FOREACH(j, m->jobs, i)
171 if (j->state == JOB_RUNNING && counter++ == print_nr)
174 /* m->n_running_jobs must be consistent with the contents of m->jobs,
175 * so the above loop must have succeeded in finding j. */
176 assert(counter == print_nr + 1);
179 cylon_pos = m->jobs_in_progress_iteration % 14;
181 cylon_pos = 14 - cylon_pos;
182 draw_cylon(cylon, sizeof(cylon), 6, cylon_pos);
184 m->jobs_in_progress_iteration++;
186 if (m->n_running_jobs > 1)
187 if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0)
190 format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC);
191 if (job_get_timeout(j, &x) > 0)
192 format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC);
194 manager_status_printf(m, STATUS_TYPE_EPHEMERAL, cylon,
195 "%sA %s job is running for %s (%s / %s)",
197 job_type_to_string(j->type),
198 unit_description(j->unit),
203 static int have_ask_password(void) {
204 _cleanup_closedir_ DIR *dir;
206 dir = opendir("/run/systemd/ask-password");
219 if (!de && errno != 0)
224 if (startswith(de->d_name, "ask."))
229 static int manager_dispatch_ask_password_fd(sd_event_source *source,
230 int fd, uint32_t revents, void *userdata) {
231 Manager *m = userdata;
237 m->have_ask_password = have_ask_password();
238 if (m->have_ask_password < 0)
239 /* Log error but continue. Negative have_ask_password
240 * is treated as unknown status. */
241 log_error("Failed to list /run/systemd/ask-password: %s", strerror(m->have_ask_password));
246 static void manager_close_ask_password(Manager *m) {
249 m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd);
250 m->ask_password_event_source = sd_event_source_unref(m->ask_password_event_source);
251 m->have_ask_password = -EINVAL;
254 static int manager_check_ask_password(Manager *m) {
259 if (!m->ask_password_event_source) {
260 assert(m->ask_password_inotify_fd < 0);
262 mkdir_p_label("/run/systemd/ask-password", 0755);
264 m->ask_password_inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
265 if (m->ask_password_inotify_fd < 0) {
266 log_error("inotify_init1() failed: %m");
270 if (inotify_add_watch(m->ask_password_inotify_fd, "/run/systemd/ask-password", IN_CREATE|IN_DELETE|IN_MOVE) < 0) {
271 log_error("Failed to add watch on /run/systemd/ask-password: %m");
272 manager_close_ask_password(m);
276 r = sd_event_add_io(m->event, &m->ask_password_event_source,
277 m->ask_password_inotify_fd, EPOLLIN,
278 manager_dispatch_ask_password_fd, m);
280 log_error("Failed to add event source for /run/systemd/ask-password: %m");
281 manager_close_ask_password(m);
285 /* Queries might have been added meanwhile... */
286 manager_dispatch_ask_password_fd(m->ask_password_event_source,
287 m->ask_password_inotify_fd, EPOLLIN, m);
290 return m->have_ask_password;
293 static int manager_watch_idle_pipe(Manager *m) {
298 if (m->idle_pipe_event_source)
301 if (m->idle_pipe[2] < 0)
304 r = sd_event_add_io(m->event, &m->idle_pipe_event_source, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m);
306 log_error("Failed to watch idle pipe: %s", strerror(-r));
313 static void manager_close_idle_pipe(Manager *m) {
316 safe_close_pair(m->idle_pipe);
317 safe_close_pair(m->idle_pipe + 2);
320 static int manager_setup_time_change(Manager *m) {
323 /* We only care for the cancellation event, hence we set the
324 * timeout to the latest possible value. */
325 struct itimerspec its = {
326 .it_value.tv_sec = TIME_T_MAX,
330 assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX));
335 /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever
336 * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */
338 m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC);
339 if (m->time_change_fd < 0) {
340 log_error("Failed to create timerfd: %m");
344 if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) {
345 log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m");
346 m->time_change_fd = safe_close(m->time_change_fd);
350 r = sd_event_add_io(m->event, &m->time_change_event_source, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m);
352 log_error("Failed to create time change event source: %s", strerror(-r));
356 log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd.");
361 static int enable_special_signals(Manager *m) {
362 _cleanup_close_ int fd = -1;
366 /* Enable that we get SIGINT on control-alt-del. In containers
367 * this will fail with EPERM (older) or EINVAL (newer), so
369 if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL)
370 log_warning("Failed to enable ctrl-alt-del handling: %m");
372 fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);
374 /* Support systems without virtual console */
376 log_warning("Failed to open /dev/tty0: %m");
378 /* Enable that we get SIGWINCH on kbrequest */
379 if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0)
380 log_warning("Failed to enable kbrequest handling: %m");
386 static int manager_setup_signals(Manager *m) {
387 struct sigaction sa = {
388 .sa_handler = SIG_DFL,
389 .sa_flags = SA_NOCLDSTOP|SA_RESTART,
399 assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
401 /* We make liberal use of realtime signals here. On
402 * Linux/glibc we have 30 of them (with the exception of Linux
403 * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30
406 assert_se(sigemptyset(&mask) == 0);
407 sigset_add_many(&mask,
408 SIGCHLD, /* Child died */
409 SIGTERM, /* Reexecute daemon */
410 SIGHUP, /* Reload configuration */
411 SIGUSR1, /* systemd/upstart: reconnect to D-Bus */
412 SIGUSR2, /* systemd: dump status */
413 SIGINT, /* Kernel sends us this on control-alt-del */
414 SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */
415 SIGPWR, /* Some kernel drivers and upsd send us this on power failure */
417 SIGRTMIN+0, /* systemd: start default.target */
418 SIGRTMIN+1, /* systemd: isolate rescue.target */
419 SIGRTMIN+2, /* systemd: isolate emergency.target */
420 SIGRTMIN+3, /* systemd: start halt.target */
421 SIGRTMIN+4, /* systemd: start poweroff.target */
422 SIGRTMIN+5, /* systemd: start reboot.target */
423 SIGRTMIN+6, /* systemd: start kexec.target */
425 /* ... space for more special targets ... */
427 SIGRTMIN+13, /* systemd: Immediate halt */
428 SIGRTMIN+14, /* systemd: Immediate poweroff */
429 SIGRTMIN+15, /* systemd: Immediate reboot */
430 SIGRTMIN+16, /* systemd: Immediate kexec */
432 /* ... space for more immediate system state changes ... */
434 SIGRTMIN+20, /* systemd: enable status messages */
435 SIGRTMIN+21, /* systemd: disable status messages */
436 SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */
437 SIGRTMIN+23, /* systemd: set log level to LOG_INFO */
438 SIGRTMIN+24, /* systemd: Immediate exit (--user only) */
440 /* .. one free signal here ... */
442 #if !defined(__hppa64__) && !defined(__hppa__)
443 /* Apparently Linux on hppa has fewer RT
444 * signals (SIGRTMAX is SIGRTMIN+25 there),
445 * hence let's not try to make use of them
446 * here. Since these commands are accessible
447 * by different means and only really a safety
448 * net, the missing functionality on hppa
449 * shouldn't matter. */
451 SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */
452 SIGRTMIN+27, /* systemd: set log target to console */
453 SIGRTMIN+28, /* systemd: set log target to kmsg */
454 SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete)*/
456 /* ... one free signal here SIGRTMIN+30 ... */
459 assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
461 m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
462 if (m->signal_fd < 0)
465 r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m);
469 /* Process signals a bit earlier than the rest of things, but
470 * later than notify_fd processing, so that the notify
471 * processing can still figure out to which process/service a
472 * message belongs, before we reap the process. */
473 r = sd_event_source_set_priority(m->signal_event_source, -5);
477 if (m->running_as == SYSTEMD_SYSTEM)
478 return enable_special_signals(m);
483 static void manager_clean_environment(Manager *m) {
486 /* Let's remove some environment variables that we
487 * need ourselves to communicate with our clients */
500 static int manager_default_environment(Manager *m) {
503 if (m->running_as == SYSTEMD_SYSTEM) {
504 /* The system manager always starts with a clean
505 * environment for its children. It does not import
506 * the kernel or the parents exported variables.
508 * The initial passed environ is untouched to keep
509 * /proc/self/environ valid; it is used for tagging
510 * the init process inside containers. */
511 m->environment = strv_new("PATH=" DEFAULT_PATH,
514 /* Import locale variables LC_*= from configuration */
515 locale_setup(&m->environment);
517 /* The user manager passes its own environment
518 * along to its children. */
519 m->environment = strv_copy(environ);
525 manager_clean_environment(m);
526 strv_sort(m->environment);
531 int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) {
536 assert(running_as >= 0);
537 assert(running_as < _SYSTEMD_RUNNING_AS_MAX);
539 m = new0(Manager, 1);
544 if (running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0)
545 boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp);
548 m->running_as = running_as;
549 m->exit_code = _MANAGER_EXIT_CODE_INVALID;
550 m->default_timer_accuracy_usec = USEC_PER_MINUTE;
552 m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1;
554 m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = m->dev_autofs_fd = m->private_listen_fd = m->kdbus_fd = -1;
555 m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */
557 m->ask_password_inotify_fd = -1;
558 m->have_ask_password = -EINVAL; /* we don't know */
560 m->test_run = test_run;
562 r = manager_default_environment(m);
566 r = hashmap_ensure_allocated(&m->units, &string_hash_ops);
570 r = hashmap_ensure_allocated(&m->jobs, NULL);
574 r = hashmap_ensure_allocated(&m->cgroup_unit, &string_hash_ops);
578 r = hashmap_ensure_allocated(&m->watch_bus, &string_hash_ops);
582 r = set_ensure_allocated(&m->startup_units, NULL);
586 r = set_ensure_allocated(&m->failed_units, NULL);
590 r = sd_event_default(&m->event);
594 r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m);
598 r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE);
602 r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF);
606 r = manager_setup_signals(m);
610 r = manager_setup_cgroup(m);
614 r = manager_setup_time_change(m);
618 m->udev = udev_new();
624 /* Note that we set up neither kdbus, nor the notify fd
625 * here. We do that after deserialization, since they might
626 * have gotten serialized across the reexec. */
628 m->taint_usr = dir_is_empty("/usr") > 0;
638 static int manager_setup_notify(Manager *m) {
644 if (m->notify_fd < 0) {
645 _cleanup_close_ int fd = -1;
646 union sockaddr_union sa = {
647 .sa.sa_family = AF_UNIX,
649 static const int one = 1;
651 /* First free all secondary fields */
652 free(m->notify_socket);
653 m->notify_socket = NULL;
654 m->notify_event_source = sd_event_source_unref(m->notify_event_source);
656 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
658 log_error("Failed to allocate notification socket: %m");
662 if (m->running_as == SYSTEMD_SYSTEM)
663 m->notify_socket = strdup("/run/systemd/notify");
667 e = getenv("XDG_RUNTIME_DIR");
669 log_error("XDG_RUNTIME_DIR is not set: %m");
673 m->notify_socket = strappend(e, "/systemd/notify");
675 if (!m->notify_socket)
678 (void) mkdir_parents_label(m->notify_socket, 0755);
679 (void) unlink(m->notify_socket);
681 strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1);
682 r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path));
684 log_error("bind(%s) failed: %m", sa.un.sun_path);
688 r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one));
690 log_error("SO_PASSCRED failed: %m");
697 log_debug("Using notification socket %s", m->notify_socket);
700 if (!m->notify_event_source) {
701 r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m);
703 log_error("Failed to allocate notify event source: %s", strerror(-r));
707 /* Process signals a bit earlier than SIGCHLD, so that we can
708 * still identify to which service an exit message belongs */
709 r = sd_event_source_set_priority(m->notify_event_source, -7);
711 log_error("Failed to set priority of notify event source: %s", strerror(-r));
719 static int manager_setup_kdbus(Manager *m) {
721 _cleanup_free_ char *p = NULL;
725 if (m->test_run || m->kdbus_fd >= 0)
728 m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p);
729 if (m->kdbus_fd < 0) {
730 log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd));
734 log_debug("Successfully set up kdbus on %s", p);
736 /* Create the namespace directory here, so that the contents
737 * of that directory is not visible to non-root users. This is
738 * necessary to ensure that users cannot get access to busses
739 * of virtualized users when no UID namespacing is used. */
740 if (m->running_as == SYSTEMD_SYSTEM)
741 mkdir_p_label("/dev/kdbus/domain", 0700);
747 static int manager_connect_bus(Manager *m, bool reexecuting) {
748 bool try_bus_connect;
758 (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS"));
760 /* Try to connect to the busses, if possible. */
761 return bus_init(m, try_bus_connect);
764 static unsigned manager_dispatch_cleanup_queue(Manager *m) {
770 while ((u = m->cleanup_queue)) {
771 assert(u->in_cleanup_queue);
781 GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */
782 GC_OFFSET_UNSURE, /* No clue */
783 GC_OFFSET_GOOD, /* We still need this unit */
784 GC_OFFSET_BAD, /* We don't need this unit anymore */
788 static void unit_gc_sweep(Unit *u, unsigned gc_marker) {
795 if (u->gc_marker == gc_marker + GC_OFFSET_GOOD ||
796 u->gc_marker == gc_marker + GC_OFFSET_BAD ||
797 u->gc_marker == gc_marker + GC_OFFSET_IN_PATH)
800 if (u->in_cleanup_queue)
803 if (unit_check_gc(u))
806 u->gc_marker = gc_marker + GC_OFFSET_IN_PATH;
810 SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) {
811 unit_gc_sweep(other, gc_marker);
813 if (other->gc_marker == gc_marker + GC_OFFSET_GOOD)
816 if (other->gc_marker != gc_marker + GC_OFFSET_BAD)
823 /* We were unable to find anything out about this entry, so
824 * let's investigate it later */
825 u->gc_marker = gc_marker + GC_OFFSET_UNSURE;
826 unit_add_to_gc_queue(u);
830 /* We definitely know that this one is not useful anymore, so
831 * let's mark it for deletion */
832 u->gc_marker = gc_marker + GC_OFFSET_BAD;
833 unit_add_to_cleanup_queue(u);
837 u->gc_marker = gc_marker + GC_OFFSET_GOOD;
840 static unsigned manager_dispatch_gc_queue(Manager *m) {
847 /* log_debug("Running GC..."); */
849 m->gc_marker += _GC_OFFSET_MAX;
850 if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX)
853 gc_marker = m->gc_marker;
855 while ((u = m->gc_queue)) {
856 assert(u->in_gc_queue);
858 unit_gc_sweep(u, gc_marker);
860 LIST_REMOVE(gc_queue, m->gc_queue, u);
861 u->in_gc_queue = false;
865 if (u->gc_marker == gc_marker + GC_OFFSET_BAD ||
866 u->gc_marker == gc_marker + GC_OFFSET_UNSURE) {
867 log_debug_unit(u->id, "Collecting %s", u->id);
868 u->gc_marker = gc_marker + GC_OFFSET_BAD;
869 unit_add_to_cleanup_queue(u);
873 m->n_in_gc_queue = 0;
878 static void manager_clear_jobs_and_units(Manager *m) {
883 while ((u = hashmap_first(m->units)))
886 manager_dispatch_cleanup_queue(m);
888 assert(!m->load_queue);
889 assert(!m->run_queue);
890 assert(!m->dbus_unit_queue);
891 assert(!m->dbus_job_queue);
892 assert(!m->cleanup_queue);
893 assert(!m->gc_queue);
895 assert(hashmap_isempty(m->jobs));
896 assert(hashmap_isempty(m->units));
899 m->n_running_jobs = 0;
902 void manager_free(Manager *m) {
908 manager_clear_jobs_and_units(m);
910 for (c = 0; c < _UNIT_TYPE_MAX; c++)
911 if (unit_vtable[c]->shutdown)
912 unit_vtable[c]->shutdown(m);
914 /* If we reexecute ourselves, we keep the root cgroup
916 manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE);
918 manager_undo_generators(m);
922 hashmap_free(m->units);
923 hashmap_free(m->jobs);
924 hashmap_free(m->watch_pids1);
925 hashmap_free(m->watch_pids2);
926 hashmap_free(m->watch_bus);
928 set_free(m->startup_units);
929 set_free(m->failed_units);
931 sd_event_source_unref(m->signal_event_source);
932 sd_event_source_unref(m->notify_event_source);
933 sd_event_source_unref(m->time_change_event_source);
934 sd_event_source_unref(m->jobs_in_progress_event_source);
935 sd_event_source_unref(m->idle_pipe_event_source);
936 sd_event_source_unref(m->run_queue_event_source);
938 safe_close(m->signal_fd);
939 safe_close(m->notify_fd);
940 safe_close(m->time_change_fd);
941 safe_close(m->kdbus_fd);
943 manager_close_ask_password(m);
945 manager_close_idle_pipe(m);
948 sd_event_unref(m->event);
950 free(m->notify_socket);
952 lookup_paths_free(&m->lookup_paths);
953 strv_free(m->environment);
955 hashmap_free(m->cgroup_unit);
956 set_free_free(m->unit_path_cache);
958 free(m->switch_root);
959 free(m->switch_root_init);
961 for (i = 0; i < _RLIMIT_MAX; i++)
964 assert(hashmap_isempty(m->units_requiring_mounts_for));
965 hashmap_free(m->units_requiring_mounts_for);
970 int manager_enumerate(Manager *m) {
976 /* Let's ask every type to load all units from disk/kernel
977 * that it might know */
978 for (c = 0; c < _UNIT_TYPE_MAX; c++)
979 if (unit_vtable[c]->enumerate) {
980 q = unit_vtable[c]->enumerate(m);
985 manager_dispatch_load_queue(m);
989 static int manager_coldplug(Manager *m) {
997 /* Then, let's set up their initial state. */
998 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
1001 /* ignore aliases */
1005 q = unit_coldplug(u);
1013 static void manager_build_unit_path_cache(Manager *m) {
1015 _cleanup_closedir_ DIR *d = NULL;
1020 set_free_free(m->unit_path_cache);
1022 m->unit_path_cache = set_new(&string_hash_ops);
1023 if (!m->unit_path_cache) {
1024 log_error("Failed to allocate unit path cache.");
1028 /* This simply builds a list of files we know exist, so that
1029 * we don't always have to go to disk */
1031 STRV_FOREACH(i, m->lookup_paths.unit_path) {
1036 if (errno != ENOENT)
1037 log_error("Failed to open directory %s: %m", *i);
1041 while ((de = readdir(d))) {
1044 if (ignore_file(de->d_name))
1047 p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL);
1053 r = set_consume(m->unit_path_cache, p);
1065 log_error("Failed to build unit path cache: %s", strerror(-r));
1067 set_free_free(m->unit_path_cache);
1068 m->unit_path_cache = NULL;
1072 static int manager_distribute_fds(Manager *m, FDSet *fds) {
1079 HASHMAP_FOREACH(u, m->units, i) {
1081 if (fdset_size(fds) <= 0)
1084 if (UNIT_VTABLE(u)->distribute_fds) {
1085 r = UNIT_VTABLE(u)->distribute_fds(u, fds);
1094 int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
1099 dual_timestamp_get(&m->generators_start_timestamp);
1100 manager_run_generators(m);
1101 dual_timestamp_get(&m->generators_finish_timestamp);
1103 r = lookup_paths_init(
1104 &m->lookup_paths, m->running_as, true,
1106 m->generator_unit_path,
1107 m->generator_unit_path_early,
1108 m->generator_unit_path_late);
1112 manager_build_unit_path_cache(m);
1114 /* If we will deserialize make sure that during enumeration
1115 * this is already known, so we increase the counter here
1120 /* First, enumerate what we can from all config files */
1121 dual_timestamp_get(&m->units_load_start_timestamp);
1122 r = manager_enumerate(m);
1123 dual_timestamp_get(&m->units_load_finish_timestamp);
1125 /* Second, deserialize if there is something to deserialize */
1127 r = manager_deserialize(m, serialization, fds);
1129 /* Any fds left? Find some unit which wants them. This is
1130 * useful to allow container managers to pass some file
1131 * descriptors to us pre-initialized. This enables
1132 * socket-based activation of entire containers. */
1133 if (fdset_size(fds) > 0) {
1134 q = manager_distribute_fds(m, fds);
1135 if (q < 0 && r == 0)
1139 /* We might have deserialized the notify fd, but if we didn't
1140 * then let's create the bus now */
1141 q = manager_setup_notify(m);
1142 if (q < 0 && r == 0)
1145 /* We might have deserialized the kdbus control fd, but if we
1146 * didn't, then let's create the bus now. */
1147 manager_setup_kdbus(m);
1148 manager_connect_bus(m, !!serialization);
1149 bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed);
1151 /* Third, fire things up! */
1152 q = manager_coldplug(m);
1153 if (q < 0 && r == 0)
1156 if (serialization) {
1157 assert(m->n_reloading > 0);
1160 /* Let's wait for the UnitNew/JobNew messages being
1161 * sent, before we notify that the reload is
1163 m->send_reloading_done = true;
1169 int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) {
1174 assert(type < _JOB_TYPE_MAX);
1176 assert(mode < _JOB_MODE_MAX);
1178 if (mode == JOB_ISOLATE && type != JOB_START)
1179 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start.");
1181 if (mode == JOB_ISOLATE && !unit->allow_isolate)
1182 return sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated.");
1184 log_debug_unit(unit->id,
1185 "Trying to enqueue job %s/%s/%s", unit->id,
1186 job_type_to_string(type), job_mode_to_string(mode));
1188 job_type_collapse(&type, unit);
1190 tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY);
1194 r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false,
1195 mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS,
1196 mode == JOB_IGNORE_DEPENDENCIES, e);
1200 if (mode == JOB_ISOLATE) {
1201 r = transaction_add_isolate_jobs(tr, m);
1206 r = transaction_activate(tr, m, mode, e);
1210 log_debug_unit(unit->id,
1211 "Enqueued job %s/%s as %u", unit->id,
1212 job_type_to_string(type), (unsigned) tr->anchor_job->id);
1215 *_ret = tr->anchor_job;
1217 transaction_free(tr);
1221 transaction_abort(tr);
1222 transaction_free(tr);
1226 int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, sd_bus_error *e, Job **_ret) {
1231 assert(type < _JOB_TYPE_MAX);
1233 assert(mode < _JOB_MODE_MAX);
1235 r = manager_load_unit(m, name, NULL, NULL, &unit);
1239 return manager_add_job(m, type, unit, mode, override, e, _ret);
1242 Job *manager_get_job(Manager *m, uint32_t id) {
1245 return hashmap_get(m->jobs, UINT32_TO_PTR(id));
1248 Unit *manager_get_unit(Manager *m, const char *name) {
1252 return hashmap_get(m->units, name);
1255 unsigned manager_dispatch_load_queue(Manager *m) {
1261 /* Make sure we are not run recursively */
1262 if (m->dispatching_load_queue)
1265 m->dispatching_load_queue = true;
1267 /* Dispatches the load queue. Takes a unit from the queue and
1268 * tries to load its data until the queue is empty */
1270 while ((u = m->load_queue)) {
1271 assert(u->in_load_queue);
1277 m->dispatching_load_queue = false;
1281 int manager_load_unit_prepare(
1293 assert(name || path);
1295 /* This will prepare the unit for loading, but not actually
1296 * load anything from disk. */
1298 if (path && !is_path(path))
1299 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
1302 name = basename(path);
1304 t = unit_name_to_type(name);
1306 if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID))
1307 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name);
1309 ret = manager_get_unit(m, name);
1315 ret = unit_new(m, unit_vtable[t]->object_size);
1320 ret->fragment_path = strdup(path);
1321 if (!ret->fragment_path) {
1327 r = unit_add_name(ret, name);
1333 unit_add_to_load_queue(ret);
1334 unit_add_to_dbus_queue(ret);
1335 unit_add_to_gc_queue(ret);
1343 int manager_load_unit(
1354 /* This will load the service information files, but not actually
1355 * start any services or anything. */
1357 r = manager_load_unit_prepare(m, name, path, e, _ret);
1361 manager_dispatch_load_queue(m);
1364 *_ret = unit_follow_merge(*_ret);
1369 void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) {
1376 HASHMAP_FOREACH(j, s->jobs, i)
1377 job_dump(j, f, prefix);
1380 void manager_dump_units(Manager *s, FILE *f, const char *prefix) {
1388 HASHMAP_FOREACH_KEY(u, t, s->units, i)
1390 unit_dump(u, f, prefix);
1393 void manager_clear_jobs(Manager *m) {
1398 while ((j = hashmap_first(m->jobs)))
1399 /* No need to recurse. We're cancelling all jobs. */
1400 job_finish_and_invalidate(j, JOB_CANCELED, false);
1403 static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) {
1404 Manager *m = userdata;
1410 while ((j = m->run_queue)) {
1411 assert(j->installed);
1412 assert(j->in_run_queue);
1414 job_run_and_invalidate(j);
1417 if (m->n_running_jobs > 0)
1418 manager_watch_jobs_in_progress(m);
1420 if (m->n_on_console > 0)
1421 manager_watch_idle_pipe(m);
1426 static unsigned manager_dispatch_dbus_queue(Manager *m) {
1433 if (m->dispatching_dbus_queue)
1436 m->dispatching_dbus_queue = true;
1438 while ((u = m->dbus_unit_queue)) {
1439 assert(u->in_dbus_queue);
1441 bus_unit_send_change_signal(u);
1445 while ((j = m->dbus_job_queue)) {
1446 assert(j->in_dbus_queue);
1448 bus_job_send_change_signal(j);
1452 m->dispatching_dbus_queue = false;
1454 if (m->send_reloading_done) {
1455 m->send_reloading_done = false;
1457 bus_manager_send_reloading(m, false);
1460 if (m->queued_message)
1461 bus_send_queued_message(m);
1466 static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n) {
1467 _cleanup_strv_free_ char **tags = NULL;
1474 tags = strv_split(buf, "\n\r");
1480 log_debug_unit(u->id, "Got notification message for unit %s", u->id);
1482 if (UNIT_VTABLE(u)->notify_message)
1483 UNIT_VTABLE(u)->notify_message(u, pid, tags);
1486 static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1487 Manager *m = userdata;
1491 assert(m->notify_fd == fd);
1493 if (revents != EPOLLIN) {
1494 log_warning("Got unexpected poll event for notify fd.");
1500 struct iovec iovec = {
1502 .iov_len = sizeof(buf)-1,
1507 struct cmsghdr cmsghdr;
1508 uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
1511 struct msghdr msghdr = {
1514 .msg_control = &control,
1515 .msg_controllen = sizeof(control),
1517 struct ucred *ucred;
1520 n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT);
1525 if (errno == EAGAIN || errno == EINTR)
1531 if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||
1532 control.cmsghdr.cmsg_level != SOL_SOCKET ||
1533 control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||
1534 control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {
1535 log_warning("Received notify message without credentials. Ignoring.");
1539 ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
1541 assert((size_t) n < sizeof(buf));
1544 /* Notify every unit that might be interested, but try
1545 * to avoid notifying the same one multiple times. */
1546 u1 = manager_get_unit_by_pid(m, ucred->pid);
1548 manager_invoke_notify_message(m, u1, ucred->pid, buf, n);
1552 u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid));
1553 if (u2 && u2 != u1) {
1554 manager_invoke_notify_message(m, u2, ucred->pid, buf, n);
1558 u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid));
1559 if (u3 && u3 != u2 && u3 != u1) {
1560 manager_invoke_notify_message(m, u3, ucred->pid, buf, n);
1565 log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid);
1571 static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) {
1576 log_debug_unit(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id);
1578 unit_unwatch_pid(u, si->si_pid);
1579 UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status);
1582 static int manager_dispatch_sigchld(Manager *m) {
1588 /* First we call waitd() for a PID and do not reap the
1589 * zombie. That way we can still access /proc/$PID for
1590 * it while it is a zombie. */
1591 if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) {
1593 if (errno == ECHILD)
1605 if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) {
1606 _cleanup_free_ char *name = NULL;
1609 get_process_comm(si.si_pid, &name);
1611 log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)",
1612 si.si_pid, strna(name),
1613 sigchld_code_to_string(si.si_code),
1615 strna(si.si_code == CLD_EXITED
1616 ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL)
1617 : signal_to_string(si.si_status)));
1619 /* And now figure out the unit this belongs
1620 * to, it might be multiple... */
1621 u1 = manager_get_unit_by_pid(m, si.si_pid);
1623 invoke_sigchld_event(m, u1, &si);
1624 u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid));
1626 invoke_sigchld_event(m, u2, &si);
1627 u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid));
1628 if (u3 && u3 != u2 && u3 != u1)
1629 invoke_sigchld_event(m, u3, &si);
1632 /* And now, we actually reap the zombie. */
1633 if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) {
1644 static int manager_start_target(Manager *m, const char *name, JobMode mode) {
1645 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1648 log_debug_unit(name, "Activating special unit %s", name);
1650 r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL);
1652 log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r));
1657 static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1658 Manager *m = userdata;
1660 struct signalfd_siginfo sfsi;
1661 bool sigchld = false;
1664 assert(m->signal_fd == fd);
1666 if (revents != EPOLLIN) {
1667 log_warning("Got unexpected events from signal file descriptor.");
1672 n = read(m->signal_fd, &sfsi, sizeof(sfsi));
1673 if (n != sizeof(sfsi)) {
1678 if (errno == EINTR || errno == EAGAIN)
1684 log_received_signal(sfsi.ssi_signo == SIGCHLD ||
1685 (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER)
1686 ? LOG_DEBUG : LOG_INFO,
1689 switch (sfsi.ssi_signo) {
1696 if (m->running_as == SYSTEMD_SYSTEM) {
1697 /* This is for compatibility with the
1698 * original sysvinit */
1699 m->exit_code = MANAGER_REEXECUTE;
1706 if (m->running_as == SYSTEMD_SYSTEM) {
1707 manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
1711 /* Run the exit target if there is one, if not, just exit. */
1712 if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) {
1713 m->exit_code = MANAGER_EXIT;
1720 if (m->running_as == SYSTEMD_SYSTEM)
1721 manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE);
1723 /* This is a nop on non-init */
1727 if (m->running_as == SYSTEMD_SYSTEM)
1728 manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE);
1730 /* This is a nop on non-init */
1736 u = manager_get_unit(m, SPECIAL_DBUS_SERVICE);
1738 if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) {
1739 log_info("Trying to reconnect to bus...");
1743 if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) {
1744 log_info("Loading D-Bus service...");
1745 manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE);
1752 _cleanup_free_ char *dump = NULL;
1753 _cleanup_fclose_ FILE *f = NULL;
1756 f = open_memstream(&dump, &size);
1758 log_warning("Failed to allocate memory stream.");
1762 manager_dump_units(m, f, "\t");
1763 manager_dump_jobs(m, f, "\t");
1766 log_warning("Failed to write status stream");
1771 log_warning("Failed to flush status stream");
1775 log_dump(LOG_INFO, dump);
1780 m->exit_code = MANAGER_RELOAD;
1785 /* Starting SIGRTMIN+0 */
1786 static const char * const target_table[] = {
1787 [0] = SPECIAL_DEFAULT_TARGET,
1788 [1] = SPECIAL_RESCUE_TARGET,
1789 [2] = SPECIAL_EMERGENCY_TARGET,
1790 [3] = SPECIAL_HALT_TARGET,
1791 [4] = SPECIAL_POWEROFF_TARGET,
1792 [5] = SPECIAL_REBOOT_TARGET,
1793 [6] = SPECIAL_KEXEC_TARGET
1796 /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */
1797 static const ManagerExitCode code_table[] = {
1799 [1] = MANAGER_POWEROFF,
1800 [2] = MANAGER_REBOOT,
1804 if ((int) sfsi.ssi_signo >= SIGRTMIN+0 &&
1805 (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) {
1806 int idx = (int) sfsi.ssi_signo - SIGRTMIN;
1807 manager_start_target(m, target_table[idx],
1808 (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE);
1812 if ((int) sfsi.ssi_signo >= SIGRTMIN+13 &&
1813 (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) {
1814 m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13];
1818 switch (sfsi.ssi_signo - SIGRTMIN) {
1821 log_debug("Enabling showing of status.");
1822 manager_set_show_status(m, SHOW_STATUS_YES);
1826 log_debug("Disabling showing of status.");
1827 manager_set_show_status(m, SHOW_STATUS_NO);
1831 log_set_max_level(LOG_DEBUG);
1832 log_notice("Setting log level to debug.");
1836 log_set_max_level(LOG_INFO);
1837 log_notice("Setting log level to info.");
1841 if (m->running_as == SYSTEMD_USER) {
1842 m->exit_code = MANAGER_EXIT;
1846 /* This is a nop on init */
1850 case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */
1851 log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
1852 log_notice("Setting log target to journal-or-kmsg.");
1856 log_set_target(LOG_TARGET_CONSOLE);
1857 log_notice("Setting log target to console.");
1861 log_set_target(LOG_TARGET_KMSG);
1862 log_notice("Setting log target to kmsg.");
1866 log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo));
1873 manager_dispatch_sigchld(m);
1878 static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1879 Manager *m = userdata;
1884 assert(m->time_change_fd == fd);
1886 log_struct(LOG_INFO,
1887 MESSAGE_ID(SD_MESSAGE_TIME_CHANGE),
1888 "MESSAGE=Time has been changed",
1891 /* Restart the watch */
1892 m->time_change_event_source = sd_event_source_unref(m->time_change_event_source);
1893 m->time_change_fd = safe_close(m->time_change_fd);
1895 manager_setup_time_change(m);
1897 HASHMAP_FOREACH(u, m->units, i)
1898 if (UNIT_VTABLE(u)->time_change)
1899 UNIT_VTABLE(u)->time_change(u);
1904 static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1905 Manager *m = userdata;
1908 assert(m->idle_pipe[2] == fd);
1910 m->no_console_output = m->n_on_console > 0;
1912 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
1913 manager_close_idle_pipe(m);
1918 static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) {
1919 Manager *m = userdata;
1926 manager_print_jobs_in_progress(m);
1928 next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC;
1929 r = sd_event_source_set_time(source, next);
1933 return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT);
1936 int manager_loop(Manager *m) {
1939 RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000);
1942 m->exit_code = MANAGER_OK;
1944 /* Release the path cache */
1945 set_free_free(m->unit_path_cache);
1946 m->unit_path_cache = NULL;
1948 manager_check_finished(m);
1950 /* There might still be some zombies hanging around from
1951 * before we were exec()'ed. Let's reap them. */
1952 r = manager_dispatch_sigchld(m);
1956 while (m->exit_code == MANAGER_OK) {
1959 if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM)
1962 if (!ratelimit_test(&rl)) {
1963 /* Yay, something is going seriously wrong, pause a little */
1964 log_warning("Looping too fast. Throttling execution a little.");
1969 if (manager_dispatch_load_queue(m) > 0)
1972 if (manager_dispatch_gc_queue(m) > 0)
1975 if (manager_dispatch_cleanup_queue(m) > 0)
1978 if (manager_dispatch_cgroup_queue(m) > 0)
1981 if (manager_dispatch_dbus_queue(m) > 0)
1984 /* Sleep for half the watchdog time */
1985 if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) {
1986 wait_usec = m->runtime_watchdog / 2;
1990 wait_usec = USEC_INFINITY;
1992 r = sd_event_run(m->event, wait_usec);
1994 log_error("Failed to run event loop: %s", strerror(-r));
1999 return m->exit_code;
2002 int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) {
2003 _cleanup_free_ char *n = NULL;
2011 r = unit_name_from_dbus_path(s, &n);
2015 r = manager_load_unit(m, n, NULL, e, &u);
2024 int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) {
2034 p = startswith(s, "/org/freedesktop/systemd1/job/");
2038 r = safe_atou(p, &id);
2042 j = manager_get_job(m, id);
2051 void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
2054 _cleanup_free_ char *p = NULL;
2058 audit_fd = get_audit_fd();
2062 /* Don't generate audit events if the service was already
2063 * started and we're just deserializing */
2064 if (m->n_reloading > 0)
2067 if (m->running_as != SYSTEMD_SYSTEM)
2070 if (u->type != UNIT_SERVICE)
2073 p = unit_name_to_prefix_and_instance(u->id);
2079 msg = strappenda("unit=", p);
2081 if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) {
2083 /* We aren't allowed to send audit messages?
2084 * Then let's not retry again. */
2087 log_warning("Failed to send audit message: %m");
2093 void manager_send_unit_plymouth(Manager *m, Unit *u) {
2094 union sockaddr_union sa = PLYMOUTH_SOCKET;
2097 _cleanup_free_ char *message = NULL;
2098 _cleanup_close_ int fd = -1;
2100 /* Don't generate plymouth events if the service was already
2101 * started and we're just deserializing */
2102 if (m->n_reloading > 0)
2105 if (m->running_as != SYSTEMD_SYSTEM)
2108 if (detect_container(NULL) > 0)
2111 if (u->type != UNIT_SERVICE &&
2112 u->type != UNIT_MOUNT &&
2113 u->type != UNIT_SWAP)
2116 /* We set SOCK_NONBLOCK here so that we rather drop the
2117 * message then wait for plymouth */
2118 fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
2120 log_error("socket() failed: %m");
2124 if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
2126 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2127 log_error("connect() failed: %m");
2131 if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) {
2137 if (write(fd, message, n + 1) != n + 1)
2138 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2139 log_error("Failed to write Plymouth message: %m");
2142 void manager_dispatch_bus_name_owner_changed(
2145 const char* old_owner,
2146 const char *new_owner) {
2153 u = hashmap_get(m->watch_bus, name);
2157 UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner);
2160 int manager_open_serialization(Manager *m, FILE **_f) {
2167 path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp";
2168 fd = open_tmpfile(path, O_RDWR|O_CLOEXEC);
2172 log_debug("Serializing state to %s", path);
2174 f = fdopen(fd, "w+");
2185 int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) {
2198 fprintf(f, "current-job-id=%i\n", m->current_job_id);
2199 fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr));
2200 fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs);
2201 fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs);
2203 dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp);
2204 dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp);
2205 dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp);
2206 dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp);
2209 dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp);
2210 dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp);
2211 dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp);
2212 dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp);
2213 dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp);
2214 dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp);
2215 dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp);
2216 dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp);
2219 if (!switching_root) {
2220 STRV_FOREACH(e, m->environment) {
2221 _cleanup_free_ char *ce;
2227 fprintf(f, "env=%s\n", *e);
2231 if (m->notify_fd >= 0) {
2234 copy = fdset_put_dup(fds, m->notify_fd);
2238 fprintf(f, "notify-fd=%i\n", copy);
2239 fprintf(f, "notify-socket=%s\n", m->notify_socket);
2242 if (m->kdbus_fd >= 0) {
2245 copy = fdset_put_dup(fds, m->kdbus_fd);
2249 fprintf(f, "kdbus-fd=%i\n", copy);
2252 bus_track_serialize(m->subscribed, f);
2256 HASHMAP_FOREACH_KEY(u, t, m->units, i) {
2264 r = unit_serialize(u, f, fds, !switching_root);
2271 assert(m->n_reloading > 0);
2277 r = bus_fdset_add_all(m, fds);
2284 int manager_deserialize(Manager *m, FILE *f, FDSet *fds) {
2290 log_debug("Deserializing state...");
2295 char line[LINE_MAX], *l;
2297 if (!fgets(line, sizeof(line), f)) {
2312 if (startswith(l, "current-job-id=")) {
2315 if (safe_atou32(l+15, &id) < 0)
2316 log_warning("Failed to parse current job id value %s", l+15);
2318 m->current_job_id = MAX(m->current_job_id, id);
2320 } else if (startswith(l, "n-installed-jobs=")) {
2323 if (safe_atou32(l+17, &n) < 0)
2324 log_warning("Failed to parse installed jobs counter %s", l+17);
2326 m->n_installed_jobs += n;
2328 } else if (startswith(l, "n-failed-jobs=")) {
2331 if (safe_atou32(l+14, &n) < 0)
2332 log_warning("Failed to parse failed jobs counter %s", l+14);
2334 m->n_failed_jobs += n;
2336 } else if (startswith(l, "taint-usr=")) {
2339 b = parse_boolean(l+10);
2341 log_warning("Failed to parse taint /usr flag %s", l+10);
2343 m->taint_usr = m->taint_usr || b;
2345 } else if (startswith(l, "firmware-timestamp="))
2346 dual_timestamp_deserialize(l+19, &m->firmware_timestamp);
2347 else if (startswith(l, "loader-timestamp="))
2348 dual_timestamp_deserialize(l+17, &m->loader_timestamp);
2349 else if (startswith(l, "kernel-timestamp="))
2350 dual_timestamp_deserialize(l+17, &m->kernel_timestamp);
2351 else if (startswith(l, "initrd-timestamp="))
2352 dual_timestamp_deserialize(l+17, &m->initrd_timestamp);
2353 else if (startswith(l, "userspace-timestamp="))
2354 dual_timestamp_deserialize(l+20, &m->userspace_timestamp);
2355 else if (startswith(l, "finish-timestamp="))
2356 dual_timestamp_deserialize(l+17, &m->finish_timestamp);
2357 else if (startswith(l, "security-start-timestamp="))
2358 dual_timestamp_deserialize(l+25, &m->security_start_timestamp);
2359 else if (startswith(l, "security-finish-timestamp="))
2360 dual_timestamp_deserialize(l+26, &m->security_finish_timestamp);
2361 else if (startswith(l, "generators-start-timestamp="))
2362 dual_timestamp_deserialize(l+27, &m->generators_start_timestamp);
2363 else if (startswith(l, "generators-finish-timestamp="))
2364 dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp);
2365 else if (startswith(l, "units-load-start-timestamp="))
2366 dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp);
2367 else if (startswith(l, "units-load-finish-timestamp="))
2368 dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp);
2369 else if (startswith(l, "env=")) {
2370 _cleanup_free_ char *uce = NULL;
2373 uce = cunescape(l+4);
2379 e = strv_env_set(m->environment, uce);
2385 strv_free(m->environment);
2388 } else if (startswith(l, "notify-fd=")) {
2391 if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2392 log_warning("Failed to parse notify fd: %s", l + 10);
2394 m->notify_event_source = sd_event_source_unref(m->notify_event_source);
2395 safe_close(m->notify_fd);
2396 m->notify_fd = fdset_remove(fds, fd);
2399 } else if (startswith(l, "notify-socket=")) {
2408 free(m->notify_socket);
2409 m->notify_socket = n;
2411 } else if (startswith(l, "kdbus-fd=")) {
2414 if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2415 log_warning("Failed to parse kdbus fd: %s", l + 9);
2417 safe_close(m->kdbus_fd);
2418 m->kdbus_fd = fdset_remove(fds, fd);
2421 } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) == 0)
2422 log_warning("Unknown serialization item '%s'", l);
2427 char name[UNIT_NAME_MAX+2];
2430 if (!fgets(name, sizeof(name), f)) {
2441 r = manager_load_unit(m, strstrip(name), NULL, NULL, &u);
2445 r = unit_deserialize(u, f, fds);
2454 assert(m->n_reloading > 0);
2460 int manager_reload(Manager *m) {
2462 _cleanup_fclose_ FILE *f = NULL;
2463 _cleanup_fdset_free_ FDSet *fds = NULL;
2467 r = manager_open_serialization(m, &f);
2472 bus_manager_send_reloading(m, true);
2480 r = manager_serialize(m, f, fds, false);
2486 if (fseeko(f, 0, SEEK_SET) < 0) {
2491 /* From here on there is no way back. */
2492 manager_clear_jobs_and_units(m);
2493 manager_undo_generators(m);
2494 lookup_paths_free(&m->lookup_paths);
2496 /* Find new unit paths */
2497 manager_run_generators(m);
2499 q = lookup_paths_init(
2500 &m->lookup_paths, m->running_as, true,
2502 m->generator_unit_path,
2503 m->generator_unit_path_early,
2504 m->generator_unit_path_late);
2508 manager_build_unit_path_cache(m);
2510 /* First, enumerate what we can from all config files */
2511 q = manager_enumerate(m);
2515 /* Second, deserialize our stored data */
2516 q = manager_deserialize(m, f, fds);
2523 /* Re-register notify_fd as event source */
2524 q = manager_setup_notify(m);
2528 /* Third, fire things up! */
2529 q = manager_coldplug(m);
2533 assert(m->n_reloading > 0);
2536 m->send_reloading_done = true;
2541 bool manager_is_reloading_or_reexecuting(Manager *m) {
2544 return m->n_reloading != 0;
2547 void manager_reset_failed(Manager *m) {
2553 HASHMAP_FOREACH(u, m->units, i)
2554 unit_reset_failed(u);
2557 bool manager_unit_inactive_or_pending(Manager *m, const char *name) {
2563 /* Returns true if the unit is inactive or going down */
2564 u = manager_get_unit(m, name);
2568 return unit_inactive_or_pending(u);
2571 static void manager_notify_finished(Manager *m) {
2572 char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
2573 usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec;
2578 if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) {
2580 /* Note that m->kernel_usec.monotonic is always at 0,
2581 * and m->firmware_usec.monotonic and
2582 * m->loader_usec.monotonic should be considered
2583 * negative values. */
2585 firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic;
2586 loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic;
2587 userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2588 total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic;
2590 if (dual_timestamp_is_set(&m->initrd_timestamp)) {
2592 kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic;
2593 initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic;
2595 log_struct(LOG_INFO,
2596 MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2597 "KERNEL_USEC="USEC_FMT, kernel_usec,
2598 "INITRD_USEC="USEC_FMT, initrd_usec,
2599 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2600 "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
2601 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2602 format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC),
2603 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2604 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
2607 kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic;
2610 log_struct(LOG_INFO,
2611 MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2612 "KERNEL_USEC="USEC_FMT, kernel_usec,
2613 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2614 "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.",
2615 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2616 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2617 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
2621 firmware_usec = loader_usec = initrd_usec = kernel_usec = 0;
2622 total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2624 log_struct(LOG_INFO,
2625 MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2626 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2627 "MESSAGE=Startup finished in %s.",
2628 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
2632 bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec);
2636 "STATUS=Startup finished in %s.",
2637 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC));
2640 void manager_check_finished(Manager *m) {
2646 if (m->n_running_jobs == 0)
2647 m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source);
2649 if (hashmap_size(m->jobs) > 0) {
2651 if (m->jobs_in_progress_event_source)
2652 sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC);
2657 manager_flip_auto_status(m, false);
2659 /* Notify Type=idle units that we are done now */
2660 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
2661 manager_close_idle_pipe(m);
2663 /* Turn off confirm spawn now */
2664 m->confirm_spawn = false;
2666 /* No need to update ask password status when we're going non-interactive */
2667 manager_close_ask_password(m);
2669 /* This is no longer the first boot */
2670 manager_set_first_boot(m, false);
2672 if (dual_timestamp_is_set(&m->finish_timestamp))
2675 dual_timestamp_get(&m->finish_timestamp);
2677 manager_notify_finished(m);
2679 SET_FOREACH(u, m->startup_units, i)
2681 cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m));
2684 static int create_generator_dir(Manager *m, char **generator, const char *name) {
2695 if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) {
2696 /* systemd --system, not running --test */
2698 p = strappend("/run/systemd/", name);
2702 r = mkdir_p_label(p, 0755);
2704 log_error("Failed to create generator directory %s: %s",
2709 } else if (m->running_as == SYSTEMD_USER) {
2710 const char *s = NULL;
2712 s = getenv("XDG_RUNTIME_DIR");
2715 p = strjoin(s, "/systemd/", name, NULL);
2719 r = mkdir_p_label(p, 0755);
2721 log_error("Failed to create generator directory %s: %s",
2727 /* systemd --system --test */
2729 p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL);
2734 log_error("Failed to create generator directory %s: %m",
2745 static void trim_generator_dir(Manager *m, char **generator) {
2752 if (rmdir(*generator) >= 0) {
2760 void manager_run_generators(Manager *m) {
2761 _cleanup_closedir_ DIR *d = NULL;
2762 const char *generator_path;
2763 const char *argv[5];
2771 generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH;
2772 d = opendir(generator_path);
2774 if (errno == ENOENT)
2777 log_error("Failed to enumerate generator directory %s: %m",
2782 r = create_generator_dir(m, &m->generator_unit_path, "generator");
2786 r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early");
2790 r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late");
2794 argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */
2795 argv[1] = m->generator_unit_path;
2796 argv[2] = m->generator_unit_path_early;
2797 argv[3] = m->generator_unit_path_late;
2800 RUN_WITH_UMASK(0022)
2801 execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv);
2804 trim_generator_dir(m, &m->generator_unit_path);
2805 trim_generator_dir(m, &m->generator_unit_path_early);
2806 trim_generator_dir(m, &m->generator_unit_path_late);
2809 static void remove_generator_dir(Manager *m, char **generator) {
2816 strv_remove(m->lookup_paths.unit_path, *generator);
2817 rm_rf(*generator, false, true, false);
2823 void manager_undo_generators(Manager *m) {
2826 remove_generator_dir(m, &m->generator_unit_path);
2827 remove_generator_dir(m, &m->generator_unit_path_early);
2828 remove_generator_dir(m, &m->generator_unit_path_late);
2831 int manager_environment_add(Manager *m, char **minus, char **plus) {
2832 char **a = NULL, **b = NULL, **l;
2837 if (!strv_isempty(minus)) {
2838 a = strv_env_delete(l, 1, minus);
2845 if (!strv_isempty(plus)) {
2846 b = strv_env_merge(2, l, plus);
2855 if (m->environment != l)
2856 strv_free(m->environment);
2863 manager_clean_environment(m);
2864 strv_sort(m->environment);
2869 int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) {
2874 for (i = 0; i < _RLIMIT_MAX; i++) {
2875 if (!default_rlimit[i])
2878 m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1);
2886 void manager_recheck_journal(Manager *m) {
2891 if (m->running_as != SYSTEMD_SYSTEM)
2894 u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET);
2895 if (u && SOCKET(u)->state != SOCKET_RUNNING) {
2896 log_close_journal();
2900 u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE);
2901 if (u && SERVICE(u)->state != SERVICE_RUNNING) {
2902 log_close_journal();
2906 /* Hmm, OK, so the socket is fully up and the service is up
2907 * too, then let's make use of the thing. */
2911 void manager_set_show_status(Manager *m, ShowStatus mode) {
2913 assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY));
2915 if (m->running_as != SYSTEMD_SYSTEM)
2918 m->show_status = mode;
2921 touch("/run/systemd/show-status");
2923 unlink("/run/systemd/show-status");
2926 static bool manager_get_show_status(Manager *m, StatusType type) {
2929 if (m->running_as != SYSTEMD_SYSTEM)
2932 if (m->no_console_output)
2935 if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING))
2938 /* If we cannot find out the status properly, just proceed. */
2939 if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0)
2942 if (m->show_status > 0)
2945 /* If Plymouth is running make sure we show the status, so
2946 * that there's something nice to see when people press Esc */
2947 return plymouth_running();
2950 void manager_set_first_boot(Manager *m, bool b) {
2953 if (m->running_as != SYSTEMD_SYSTEM)
2959 touch("/run/systemd/first-boot");
2961 unlink("/run/systemd/first-boot");
2964 void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) {
2967 if (!manager_get_show_status(m, type))
2970 /* XXX We should totally drop the check for ephemeral here
2971 * and thus effectively make 'Type=idle' pointless. */
2972 if (type == STATUS_TYPE_EPHEMERAL && m->n_on_console > 0)
2975 va_start(ap, format);
2976 status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap);
2980 int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) {
2981 _cleanup_free_ char *p = NULL;
2989 p = unit_name_from_path(path, suffix);
2993 found = manager_get_unit(m, p);
3003 Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) {
3004 char p[strlen(path)+1];
3010 path_kill_slashes(p);
3012 return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p);
3015 const char *manager_get_runtime_prefix(Manager *m) {
3018 return m->running_as == SYSTEMD_SYSTEM ?
3020 getenv("XDG_RUNTIME_DIR");
3023 ManagerState manager_state(Manager *m) {
3028 /* Did we ever finish booting? If not then we are still starting up */
3029 if (!dual_timestamp_is_set(&m->finish_timestamp)) {
3031 u = manager_get_unit(m, SPECIAL_BASIC_TARGET);
3032 if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u)))
3033 return MANAGER_INITIALIZING;
3035 return MANAGER_STARTING;
3038 /* Is the special shutdown target queued? If so, we are in shutdown state */
3039 u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET);
3040 if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))
3041 return MANAGER_STOPPING;
3043 /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */
3044 u = manager_get_unit(m, SPECIAL_RESCUE_TARGET);
3045 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3046 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3047 return MANAGER_MAINTENANCE;
3049 u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET);
3050 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3051 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3052 return MANAGER_MAINTENANCE;
3054 /* Are there any failed units? If so, we are in degraded mode */
3055 if (set_size(m->failed_units) > 0)
3056 return MANAGER_DEGRADED;
3058 return MANAGER_RUNNING;
3061 static const char *const manager_state_table[_MANAGER_STATE_MAX] = {
3062 [MANAGER_INITIALIZING] = "initializing",
3063 [MANAGER_STARTING] = "starting",
3064 [MANAGER_RUNNING] = "running",
3065 [MANAGER_DEGRADED] = "degraded",
3066 [MANAGER_MAINTENANCE] = "maintenance",
3067 [MANAGER_STOPPING] = "stopping",
3070 DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState);