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,
396 assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
398 /* We make liberal use of realtime signals here. On
399 * Linux/glibc we have 30 of them (with the exception of Linux
400 * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30
403 assert_se(sigemptyset(&mask) == 0);
404 sigset_add_many(&mask,
405 SIGCHLD, /* Child died */
406 SIGTERM, /* Reexecute daemon */
407 SIGHUP, /* Reload configuration */
408 SIGUSR1, /* systemd/upstart: reconnect to D-Bus */
409 SIGUSR2, /* systemd: dump status */
410 SIGINT, /* Kernel sends us this on control-alt-del */
411 SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */
412 SIGPWR, /* Some kernel drivers and upsd send us this on power failure */
414 SIGRTMIN+0, /* systemd: start default.target */
415 SIGRTMIN+1, /* systemd: isolate rescue.target */
416 SIGRTMIN+2, /* systemd: isolate emergency.target */
417 SIGRTMIN+3, /* systemd: start halt.target */
418 SIGRTMIN+4, /* systemd: start poweroff.target */
419 SIGRTMIN+5, /* systemd: start reboot.target */
420 SIGRTMIN+6, /* systemd: start kexec.target */
422 /* ... space for more special targets ... */
424 SIGRTMIN+13, /* systemd: Immediate halt */
425 SIGRTMIN+14, /* systemd: Immediate poweroff */
426 SIGRTMIN+15, /* systemd: Immediate reboot */
427 SIGRTMIN+16, /* systemd: Immediate kexec */
429 /* ... space for more immediate system state changes ... */
431 SIGRTMIN+20, /* systemd: enable status messages */
432 SIGRTMIN+21, /* systemd: disable status messages */
433 SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */
434 SIGRTMIN+23, /* systemd: set log level to LOG_INFO */
435 SIGRTMIN+24, /* systemd: Immediate exit (--user only) */
437 /* .. one free signal here ... */
439 #if !defined(__hppa64__) && !defined(__hppa__)
440 /* Apparently Linux on hppa has fewer RT
441 * signals (SIGRTMAX is SIGRTMIN+25 there),
442 * hence let's not try to make use of them
443 * here. Since these commands are accessible
444 * by different means and only really a safety
445 * net, the missing functionality on hppa
446 * shouldn't matter. */
448 SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */
449 SIGRTMIN+27, /* systemd: set log target to console */
450 SIGRTMIN+28, /* systemd: set log target to kmsg */
451 SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete)*/
453 /* ... one free signal here SIGRTMIN+30 ... */
456 assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
458 m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
459 if (m->signal_fd < 0)
462 r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m);
466 /* Process signals a bit earlier than the rest of things, but
467 * later than notify_fd processing, so that the notify
468 * processing can still figure out to which process/service a
469 * message belongs, before we reap the process. */
470 r = sd_event_source_set_priority(m->signal_event_source, -5);
474 if (m->running_as == SYSTEMD_SYSTEM)
475 return enable_special_signals(m);
480 static void manager_clean_environment(Manager *m) {
483 /* Let's remove some environment variables that we
484 * need ourselves to communicate with our clients */
497 static int manager_default_environment(Manager *m) {
500 if (m->running_as == SYSTEMD_SYSTEM) {
501 /* The system manager always starts with a clean
502 * environment for its children. It does not import
503 * the kernel or the parents exported variables.
505 * The initial passed environ is untouched to keep
506 * /proc/self/environ valid; it is used for tagging
507 * the init process inside containers. */
508 m->environment = strv_new("PATH=" DEFAULT_PATH,
511 /* Import locale variables LC_*= from configuration */
512 locale_setup(&m->environment);
514 /* The user manager passes its own environment
515 * along to its children. */
516 m->environment = strv_copy(environ);
522 manager_clean_environment(m);
523 strv_sort(m->environment);
528 int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) {
533 assert(running_as >= 0);
534 assert(running_as < _SYSTEMD_RUNNING_AS_MAX);
536 m = new0(Manager, 1);
541 if (running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0)
542 boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp);
545 m->running_as = running_as;
546 m->exit_code = _MANAGER_EXIT_CODE_INVALID;
547 m->default_timer_accuracy_usec = USEC_PER_MINUTE;
549 m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1;
551 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;
552 m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */
554 m->ask_password_inotify_fd = -1;
555 m->have_ask_password = -EINVAL; /* we don't know */
557 m->test_run = test_run;
559 r = manager_default_environment(m);
563 r = hashmap_ensure_allocated(&m->units, &string_hash_ops);
567 r = hashmap_ensure_allocated(&m->jobs, NULL);
571 r = hashmap_ensure_allocated(&m->cgroup_unit, &string_hash_ops);
575 r = hashmap_ensure_allocated(&m->watch_bus, &string_hash_ops);
579 r = set_ensure_allocated(&m->startup_units, NULL);
583 r = set_ensure_allocated(&m->failed_units, NULL);
587 r = sd_event_default(&m->event);
591 r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m);
595 r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE);
599 r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF);
603 r = manager_setup_signals(m);
607 r = manager_setup_cgroup(m);
611 r = manager_setup_time_change(m);
615 m->udev = udev_new();
621 /* Note that we set up neither kdbus, nor the notify fd
622 * here. We do that after deserialization, since they might
623 * have gotten serialized across the reexec. */
625 m->taint_usr = dir_is_empty("/usr") > 0;
635 static int manager_setup_notify(Manager *m) {
641 if (m->notify_fd < 0) {
642 _cleanup_close_ int fd = -1;
643 union sockaddr_union sa = {
644 .sa.sa_family = AF_UNIX,
646 static const int one = 1;
648 /* First free all secondary fields */
649 free(m->notify_socket);
650 m->notify_socket = NULL;
651 m->notify_event_source = sd_event_source_unref(m->notify_event_source);
653 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
655 log_error("Failed to allocate notification socket: %m");
659 if (m->running_as == SYSTEMD_SYSTEM)
660 m->notify_socket = strdup("/run/systemd/notify");
664 e = getenv("XDG_RUNTIME_DIR");
666 log_error("XDG_RUNTIME_DIR is not set: %m");
670 m->notify_socket = strappend(e, "/systemd/notify");
672 if (!m->notify_socket)
675 (void) mkdir_parents_label(m->notify_socket, 0755);
676 (void) unlink(m->notify_socket);
678 strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1);
679 r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path));
681 log_error("bind(%s) failed: %m", sa.un.sun_path);
685 r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one));
687 log_error("SO_PASSCRED failed: %m");
694 log_debug("Using notification socket %s", m->notify_socket);
697 if (!m->notify_event_source) {
698 r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m);
700 log_error("Failed to allocate notify event source: %s", strerror(-r));
704 /* Process signals a bit earlier than SIGCHLD, so that we can
705 * still identify to which service an exit message belongs */
706 r = sd_event_source_set_priority(m->notify_event_source, -7);
708 log_error("Failed to set priority of notify event source: %s", strerror(-r));
716 static int manager_setup_kdbus(Manager *m) {
718 _cleanup_free_ char *p = NULL;
722 if (m->test_run || m->kdbus_fd >= 0)
725 m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p);
726 if (m->kdbus_fd < 0) {
727 log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd));
731 log_debug("Successfully set up kdbus on %s", p);
737 static int manager_connect_bus(Manager *m, bool reexecuting) {
738 bool try_bus_connect;
748 (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS"));
750 /* Try to connect to the busses, if possible. */
751 return bus_init(m, try_bus_connect);
754 static unsigned manager_dispatch_cleanup_queue(Manager *m) {
760 while ((u = m->cleanup_queue)) {
761 assert(u->in_cleanup_queue);
771 GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */
772 GC_OFFSET_UNSURE, /* No clue */
773 GC_OFFSET_GOOD, /* We still need this unit */
774 GC_OFFSET_BAD, /* We don't need this unit anymore */
778 static void unit_gc_sweep(Unit *u, unsigned gc_marker) {
785 if (u->gc_marker == gc_marker + GC_OFFSET_GOOD ||
786 u->gc_marker == gc_marker + GC_OFFSET_BAD ||
787 u->gc_marker == gc_marker + GC_OFFSET_IN_PATH)
790 if (u->in_cleanup_queue)
793 if (unit_check_gc(u))
796 u->gc_marker = gc_marker + GC_OFFSET_IN_PATH;
800 SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) {
801 unit_gc_sweep(other, gc_marker);
803 if (other->gc_marker == gc_marker + GC_OFFSET_GOOD)
806 if (other->gc_marker != gc_marker + GC_OFFSET_BAD)
813 /* We were unable to find anything out about this entry, so
814 * let's investigate it later */
815 u->gc_marker = gc_marker + GC_OFFSET_UNSURE;
816 unit_add_to_gc_queue(u);
820 /* We definitely know that this one is not useful anymore, so
821 * let's mark it for deletion */
822 u->gc_marker = gc_marker + GC_OFFSET_BAD;
823 unit_add_to_cleanup_queue(u);
827 u->gc_marker = gc_marker + GC_OFFSET_GOOD;
830 static unsigned manager_dispatch_gc_queue(Manager *m) {
837 /* log_debug("Running GC..."); */
839 m->gc_marker += _GC_OFFSET_MAX;
840 if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX)
843 gc_marker = m->gc_marker;
845 while ((u = m->gc_queue)) {
846 assert(u->in_gc_queue);
848 unit_gc_sweep(u, gc_marker);
850 LIST_REMOVE(gc_queue, m->gc_queue, u);
851 u->in_gc_queue = false;
855 if (u->gc_marker == gc_marker + GC_OFFSET_BAD ||
856 u->gc_marker == gc_marker + GC_OFFSET_UNSURE) {
857 log_debug_unit(u->id, "Collecting %s", u->id);
858 u->gc_marker = gc_marker + GC_OFFSET_BAD;
859 unit_add_to_cleanup_queue(u);
863 m->n_in_gc_queue = 0;
868 static void manager_clear_jobs_and_units(Manager *m) {
873 while ((u = hashmap_first(m->units)))
876 manager_dispatch_cleanup_queue(m);
878 assert(!m->load_queue);
879 assert(!m->run_queue);
880 assert(!m->dbus_unit_queue);
881 assert(!m->dbus_job_queue);
882 assert(!m->cleanup_queue);
883 assert(!m->gc_queue);
885 assert(hashmap_isempty(m->jobs));
886 assert(hashmap_isempty(m->units));
889 m->n_running_jobs = 0;
892 Manager* manager_free(Manager *m) {
899 manager_clear_jobs_and_units(m);
901 for (c = 0; c < _UNIT_TYPE_MAX; c++)
902 if (unit_vtable[c]->shutdown)
903 unit_vtable[c]->shutdown(m);
905 /* If we reexecute ourselves, we keep the root cgroup
907 manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE);
909 manager_undo_generators(m);
913 hashmap_free(m->units);
914 hashmap_free(m->jobs);
915 hashmap_free(m->watch_pids1);
916 hashmap_free(m->watch_pids2);
917 hashmap_free(m->watch_bus);
919 set_free(m->startup_units);
920 set_free(m->failed_units);
922 sd_event_source_unref(m->signal_event_source);
923 sd_event_source_unref(m->notify_event_source);
924 sd_event_source_unref(m->time_change_event_source);
925 sd_event_source_unref(m->jobs_in_progress_event_source);
926 sd_event_source_unref(m->idle_pipe_event_source);
927 sd_event_source_unref(m->run_queue_event_source);
929 safe_close(m->signal_fd);
930 safe_close(m->notify_fd);
931 safe_close(m->time_change_fd);
932 safe_close(m->kdbus_fd);
934 manager_close_ask_password(m);
936 manager_close_idle_pipe(m);
939 sd_event_unref(m->event);
941 free(m->notify_socket);
943 lookup_paths_free(&m->lookup_paths);
944 strv_free(m->environment);
946 hashmap_free(m->cgroup_unit);
947 set_free_free(m->unit_path_cache);
949 free(m->switch_root);
950 free(m->switch_root_init);
952 for (i = 0; i < _RLIMIT_MAX; i++)
955 assert(hashmap_isempty(m->units_requiring_mounts_for));
956 hashmap_free(m->units_requiring_mounts_for);
962 int manager_enumerate(Manager *m) {
968 /* Let's ask every type to load all units from disk/kernel
969 * that it might know */
970 for (c = 0; c < _UNIT_TYPE_MAX; c++)
971 if (unit_vtable[c]->enumerate) {
972 q = unit_vtable[c]->enumerate(m);
977 manager_dispatch_load_queue(m);
981 static int manager_coldplug(Manager *m) {
989 /* Then, let's set up their initial state. */
990 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
997 q = unit_coldplug(u);
1005 static void manager_build_unit_path_cache(Manager *m) {
1007 _cleanup_closedir_ DIR *d = NULL;
1012 set_free_free(m->unit_path_cache);
1014 m->unit_path_cache = set_new(&string_hash_ops);
1015 if (!m->unit_path_cache) {
1016 log_error("Failed to allocate unit path cache.");
1020 /* This simply builds a list of files we know exist, so that
1021 * we don't always have to go to disk */
1023 STRV_FOREACH(i, m->lookup_paths.unit_path) {
1028 if (errno != ENOENT)
1029 log_error("Failed to open directory %s: %m", *i);
1033 while ((de = readdir(d))) {
1036 if (ignore_file(de->d_name))
1039 p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL);
1045 r = set_consume(m->unit_path_cache, p);
1057 log_error("Failed to build unit path cache: %s", strerror(-r));
1059 set_free_free(m->unit_path_cache);
1060 m->unit_path_cache = NULL;
1064 static int manager_distribute_fds(Manager *m, FDSet *fds) {
1071 HASHMAP_FOREACH(u, m->units, i) {
1073 if (fdset_size(fds) <= 0)
1076 if (UNIT_VTABLE(u)->distribute_fds) {
1077 r = UNIT_VTABLE(u)->distribute_fds(u, fds);
1086 int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
1091 dual_timestamp_get(&m->generators_start_timestamp);
1092 manager_run_generators(m);
1093 dual_timestamp_get(&m->generators_finish_timestamp);
1095 r = lookup_paths_init(
1096 &m->lookup_paths, m->running_as, true,
1098 m->generator_unit_path,
1099 m->generator_unit_path_early,
1100 m->generator_unit_path_late);
1104 manager_build_unit_path_cache(m);
1106 /* If we will deserialize make sure that during enumeration
1107 * this is already known, so we increase the counter here
1112 /* First, enumerate what we can from all config files */
1113 dual_timestamp_get(&m->units_load_start_timestamp);
1114 r = manager_enumerate(m);
1115 dual_timestamp_get(&m->units_load_finish_timestamp);
1117 /* Second, deserialize if there is something to deserialize */
1119 r = manager_deserialize(m, serialization, fds);
1121 /* Any fds left? Find some unit which wants them. This is
1122 * useful to allow container managers to pass some file
1123 * descriptors to us pre-initialized. This enables
1124 * socket-based activation of entire containers. */
1125 if (fdset_size(fds) > 0) {
1126 q = manager_distribute_fds(m, fds);
1127 if (q < 0 && r == 0)
1131 /* We might have deserialized the notify fd, but if we didn't
1132 * then let's create the bus now */
1133 q = manager_setup_notify(m);
1134 if (q < 0 && r == 0)
1137 /* We might have deserialized the kdbus control fd, but if we
1138 * didn't, then let's create the bus now. */
1139 manager_setup_kdbus(m);
1140 manager_connect_bus(m, !!serialization);
1141 bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed);
1143 /* Third, fire things up! */
1144 q = manager_coldplug(m);
1145 if (q < 0 && r == 0)
1148 if (serialization) {
1149 assert(m->n_reloading > 0);
1152 /* Let's wait for the UnitNew/JobNew messages being
1153 * sent, before we notify that the reload is
1155 m->send_reloading_done = true;
1161 int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) {
1166 assert(type < _JOB_TYPE_MAX);
1168 assert(mode < _JOB_MODE_MAX);
1170 if (mode == JOB_ISOLATE && type != JOB_START)
1171 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start.");
1173 if (mode == JOB_ISOLATE && !unit->allow_isolate)
1174 return sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated.");
1176 log_debug_unit(unit->id,
1177 "Trying to enqueue job %s/%s/%s", unit->id,
1178 job_type_to_string(type), job_mode_to_string(mode));
1180 job_type_collapse(&type, unit);
1182 tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY);
1186 r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false,
1187 mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS,
1188 mode == JOB_IGNORE_DEPENDENCIES, e);
1192 if (mode == JOB_ISOLATE) {
1193 r = transaction_add_isolate_jobs(tr, m);
1198 r = transaction_activate(tr, m, mode, e);
1202 log_debug_unit(unit->id,
1203 "Enqueued job %s/%s as %u", unit->id,
1204 job_type_to_string(type), (unsigned) tr->anchor_job->id);
1207 *_ret = tr->anchor_job;
1209 transaction_free(tr);
1213 transaction_abort(tr);
1214 transaction_free(tr);
1218 int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, sd_bus_error *e, Job **_ret) {
1223 assert(type < _JOB_TYPE_MAX);
1225 assert(mode < _JOB_MODE_MAX);
1227 r = manager_load_unit(m, name, NULL, NULL, &unit);
1231 return manager_add_job(m, type, unit, mode, override, e, _ret);
1234 Job *manager_get_job(Manager *m, uint32_t id) {
1237 return hashmap_get(m->jobs, UINT32_TO_PTR(id));
1240 Unit *manager_get_unit(Manager *m, const char *name) {
1244 return hashmap_get(m->units, name);
1247 unsigned manager_dispatch_load_queue(Manager *m) {
1253 /* Make sure we are not run recursively */
1254 if (m->dispatching_load_queue)
1257 m->dispatching_load_queue = true;
1259 /* Dispatches the load queue. Takes a unit from the queue and
1260 * tries to load its data until the queue is empty */
1262 while ((u = m->load_queue)) {
1263 assert(u->in_load_queue);
1269 m->dispatching_load_queue = false;
1273 int manager_load_unit_prepare(
1285 assert(name || path);
1287 /* This will prepare the unit for loading, but not actually
1288 * load anything from disk. */
1290 if (path && !is_path(path))
1291 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
1294 name = basename(path);
1296 t = unit_name_to_type(name);
1298 if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID))
1299 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name);
1301 ret = manager_get_unit(m, name);
1307 ret = unit_new(m, unit_vtable[t]->object_size);
1312 ret->fragment_path = strdup(path);
1313 if (!ret->fragment_path) {
1319 r = unit_add_name(ret, name);
1325 unit_add_to_load_queue(ret);
1326 unit_add_to_dbus_queue(ret);
1327 unit_add_to_gc_queue(ret);
1335 int manager_load_unit(
1346 /* This will load the service information files, but not actually
1347 * start any services or anything. */
1349 r = manager_load_unit_prepare(m, name, path, e, _ret);
1353 manager_dispatch_load_queue(m);
1356 *_ret = unit_follow_merge(*_ret);
1361 void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) {
1368 HASHMAP_FOREACH(j, s->jobs, i)
1369 job_dump(j, f, prefix);
1372 void manager_dump_units(Manager *s, FILE *f, const char *prefix) {
1380 HASHMAP_FOREACH_KEY(u, t, s->units, i)
1382 unit_dump(u, f, prefix);
1385 void manager_clear_jobs(Manager *m) {
1390 while ((j = hashmap_first(m->jobs)))
1391 /* No need to recurse. We're cancelling all jobs. */
1392 job_finish_and_invalidate(j, JOB_CANCELED, false);
1395 static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) {
1396 Manager *m = userdata;
1402 while ((j = m->run_queue)) {
1403 assert(j->installed);
1404 assert(j->in_run_queue);
1406 job_run_and_invalidate(j);
1409 if (m->n_running_jobs > 0)
1410 manager_watch_jobs_in_progress(m);
1412 if (m->n_on_console > 0)
1413 manager_watch_idle_pipe(m);
1418 static unsigned manager_dispatch_dbus_queue(Manager *m) {
1425 if (m->dispatching_dbus_queue)
1428 m->dispatching_dbus_queue = true;
1430 while ((u = m->dbus_unit_queue)) {
1431 assert(u->in_dbus_queue);
1433 bus_unit_send_change_signal(u);
1437 while ((j = m->dbus_job_queue)) {
1438 assert(j->in_dbus_queue);
1440 bus_job_send_change_signal(j);
1444 m->dispatching_dbus_queue = false;
1446 if (m->send_reloading_done) {
1447 m->send_reloading_done = false;
1449 bus_manager_send_reloading(m, false);
1452 if (m->queued_message)
1453 bus_send_queued_message(m);
1458 static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n) {
1459 _cleanup_strv_free_ char **tags = NULL;
1466 tags = strv_split(buf, "\n\r");
1472 log_debug_unit(u->id, "Got notification message for unit %s", u->id);
1474 if (UNIT_VTABLE(u)->notify_message)
1475 UNIT_VTABLE(u)->notify_message(u, pid, tags);
1478 static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1479 Manager *m = userdata;
1483 assert(m->notify_fd == fd);
1485 if (revents != EPOLLIN) {
1486 log_warning("Got unexpected poll event for notify fd.");
1492 struct iovec iovec = {
1494 .iov_len = sizeof(buf)-1,
1499 struct cmsghdr cmsghdr;
1500 uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
1503 struct msghdr msghdr = {
1506 .msg_control = &control,
1507 .msg_controllen = sizeof(control),
1509 struct ucred *ucred;
1512 n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT);
1517 if (errno == EAGAIN || errno == EINTR)
1523 if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||
1524 control.cmsghdr.cmsg_level != SOL_SOCKET ||
1525 control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||
1526 control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {
1527 log_warning("Received notify message without credentials. Ignoring.");
1531 ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
1533 assert((size_t) n < sizeof(buf));
1536 /* Notify every unit that might be interested, but try
1537 * to avoid notifying the same one multiple times. */
1538 u1 = manager_get_unit_by_pid(m, ucred->pid);
1540 manager_invoke_notify_message(m, u1, ucred->pid, buf, n);
1544 u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid));
1545 if (u2 && u2 != u1) {
1546 manager_invoke_notify_message(m, u2, ucred->pid, buf, n);
1550 u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid));
1551 if (u3 && u3 != u2 && u3 != u1) {
1552 manager_invoke_notify_message(m, u3, ucred->pid, buf, n);
1557 log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid);
1563 static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) {
1568 log_debug_unit(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id);
1570 unit_unwatch_pid(u, si->si_pid);
1571 UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status);
1574 static int manager_dispatch_sigchld(Manager *m) {
1580 /* First we call waitd() for a PID and do not reap the
1581 * zombie. That way we can still access /proc/$PID for
1582 * it while it is a zombie. */
1583 if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) {
1585 if (errno == ECHILD)
1597 if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) {
1598 _cleanup_free_ char *name = NULL;
1601 get_process_comm(si.si_pid, &name);
1603 log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)",
1604 si.si_pid, strna(name),
1605 sigchld_code_to_string(si.si_code),
1607 strna(si.si_code == CLD_EXITED
1608 ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL)
1609 : signal_to_string(si.si_status)));
1611 /* And now figure out the unit this belongs
1612 * to, it might be multiple... */
1613 u1 = manager_get_unit_by_pid(m, si.si_pid);
1615 invoke_sigchld_event(m, u1, &si);
1616 u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid));
1618 invoke_sigchld_event(m, u2, &si);
1619 u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid));
1620 if (u3 && u3 != u2 && u3 != u1)
1621 invoke_sigchld_event(m, u3, &si);
1624 /* And now, we actually reap the zombie. */
1625 if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) {
1636 static int manager_start_target(Manager *m, const char *name, JobMode mode) {
1637 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1640 log_debug_unit(name, "Activating special unit %s", name);
1642 r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL);
1644 log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r));
1649 static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1650 Manager *m = userdata;
1652 struct signalfd_siginfo sfsi;
1653 bool sigchld = false;
1656 assert(m->signal_fd == fd);
1658 if (revents != EPOLLIN) {
1659 log_warning("Got unexpected events from signal file descriptor.");
1664 n = read(m->signal_fd, &sfsi, sizeof(sfsi));
1665 if (n != sizeof(sfsi)) {
1670 if (errno == EINTR || errno == EAGAIN)
1676 log_received_signal(sfsi.ssi_signo == SIGCHLD ||
1677 (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER)
1678 ? LOG_DEBUG : LOG_INFO,
1681 switch (sfsi.ssi_signo) {
1688 if (m->running_as == SYSTEMD_SYSTEM) {
1689 /* This is for compatibility with the
1690 * original sysvinit */
1691 m->exit_code = MANAGER_REEXECUTE;
1698 if (m->running_as == SYSTEMD_SYSTEM) {
1699 manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
1703 /* Run the exit target if there is one, if not, just exit. */
1704 if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) {
1705 m->exit_code = MANAGER_EXIT;
1712 if (m->running_as == SYSTEMD_SYSTEM)
1713 manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE);
1715 /* This is a nop on non-init */
1719 if (m->running_as == SYSTEMD_SYSTEM)
1720 manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE);
1722 /* This is a nop on non-init */
1728 u = manager_get_unit(m, SPECIAL_DBUS_SERVICE);
1730 if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) {
1731 log_info("Trying to reconnect to bus...");
1735 if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) {
1736 log_info("Loading D-Bus service...");
1737 manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE);
1744 _cleanup_free_ char *dump = NULL;
1745 _cleanup_fclose_ FILE *f = NULL;
1748 f = open_memstream(&dump, &size);
1750 log_warning("Failed to allocate memory stream.");
1754 manager_dump_units(m, f, "\t");
1755 manager_dump_jobs(m, f, "\t");
1758 log_warning("Failed to write status stream");
1763 log_warning("Failed to flush status stream");
1767 log_dump(LOG_INFO, dump);
1772 m->exit_code = MANAGER_RELOAD;
1777 /* Starting SIGRTMIN+0 */
1778 static const char * const target_table[] = {
1779 [0] = SPECIAL_DEFAULT_TARGET,
1780 [1] = SPECIAL_RESCUE_TARGET,
1781 [2] = SPECIAL_EMERGENCY_TARGET,
1782 [3] = SPECIAL_HALT_TARGET,
1783 [4] = SPECIAL_POWEROFF_TARGET,
1784 [5] = SPECIAL_REBOOT_TARGET,
1785 [6] = SPECIAL_KEXEC_TARGET
1788 /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */
1789 static const ManagerExitCode code_table[] = {
1791 [1] = MANAGER_POWEROFF,
1792 [2] = MANAGER_REBOOT,
1796 if ((int) sfsi.ssi_signo >= SIGRTMIN+0 &&
1797 (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) {
1798 int idx = (int) sfsi.ssi_signo - SIGRTMIN;
1799 manager_start_target(m, target_table[idx],
1800 (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE);
1804 if ((int) sfsi.ssi_signo >= SIGRTMIN+13 &&
1805 (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) {
1806 m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13];
1810 switch (sfsi.ssi_signo - SIGRTMIN) {
1813 log_debug("Enabling showing of status.");
1814 manager_set_show_status(m, SHOW_STATUS_YES);
1818 log_debug("Disabling showing of status.");
1819 manager_set_show_status(m, SHOW_STATUS_NO);
1823 log_set_max_level(LOG_DEBUG);
1824 log_notice("Setting log level to debug.");
1828 log_set_max_level(LOG_INFO);
1829 log_notice("Setting log level to info.");
1833 if (m->running_as == SYSTEMD_USER) {
1834 m->exit_code = MANAGER_EXIT;
1838 /* This is a nop on init */
1842 case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */
1843 log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
1844 log_notice("Setting log target to journal-or-kmsg.");
1848 log_set_target(LOG_TARGET_CONSOLE);
1849 log_notice("Setting log target to console.");
1853 log_set_target(LOG_TARGET_KMSG);
1854 log_notice("Setting log target to kmsg.");
1858 log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo));
1865 manager_dispatch_sigchld(m);
1870 static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1871 Manager *m = userdata;
1876 assert(m->time_change_fd == fd);
1878 log_struct(LOG_INFO,
1879 MESSAGE_ID(SD_MESSAGE_TIME_CHANGE),
1880 "MESSAGE=Time has been changed",
1883 /* Restart the watch */
1884 m->time_change_event_source = sd_event_source_unref(m->time_change_event_source);
1885 m->time_change_fd = safe_close(m->time_change_fd);
1887 manager_setup_time_change(m);
1889 HASHMAP_FOREACH(u, m->units, i)
1890 if (UNIT_VTABLE(u)->time_change)
1891 UNIT_VTABLE(u)->time_change(u);
1896 static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1897 Manager *m = userdata;
1900 assert(m->idle_pipe[2] == fd);
1902 m->no_console_output = m->n_on_console > 0;
1904 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
1905 manager_close_idle_pipe(m);
1910 static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) {
1911 Manager *m = userdata;
1918 manager_print_jobs_in_progress(m);
1920 next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC;
1921 r = sd_event_source_set_time(source, next);
1925 return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT);
1928 int manager_loop(Manager *m) {
1931 RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000);
1934 m->exit_code = MANAGER_OK;
1936 /* Release the path cache */
1937 set_free_free(m->unit_path_cache);
1938 m->unit_path_cache = NULL;
1940 manager_check_finished(m);
1942 /* There might still be some zombies hanging around from
1943 * before we were exec()'ed. Let's reap them. */
1944 r = manager_dispatch_sigchld(m);
1948 while (m->exit_code == MANAGER_OK) {
1951 if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM)
1954 if (!ratelimit_test(&rl)) {
1955 /* Yay, something is going seriously wrong, pause a little */
1956 log_warning("Looping too fast. Throttling execution a little.");
1961 if (manager_dispatch_load_queue(m) > 0)
1964 if (manager_dispatch_gc_queue(m) > 0)
1967 if (manager_dispatch_cleanup_queue(m) > 0)
1970 if (manager_dispatch_cgroup_queue(m) > 0)
1973 if (manager_dispatch_dbus_queue(m) > 0)
1976 /* Sleep for half the watchdog time */
1977 if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) {
1978 wait_usec = m->runtime_watchdog / 2;
1982 wait_usec = USEC_INFINITY;
1984 r = sd_event_run(m->event, wait_usec);
1986 log_error("Failed to run event loop: %s", strerror(-r));
1991 return m->exit_code;
1994 int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) {
1995 _cleanup_free_ char *n = NULL;
2003 r = unit_name_from_dbus_path(s, &n);
2007 r = manager_load_unit(m, n, NULL, e, &u);
2016 int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) {
2026 p = startswith(s, "/org/freedesktop/systemd1/job/");
2030 r = safe_atou(p, &id);
2034 j = manager_get_job(m, id);
2043 void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
2046 _cleanup_free_ char *p = NULL;
2050 audit_fd = get_audit_fd();
2054 /* Don't generate audit events if the service was already
2055 * started and we're just deserializing */
2056 if (m->n_reloading > 0)
2059 if (m->running_as != SYSTEMD_SYSTEM)
2062 if (u->type != UNIT_SERVICE)
2065 p = unit_name_to_prefix_and_instance(u->id);
2071 msg = strappenda("unit=", p);
2073 if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) {
2075 /* We aren't allowed to send audit messages?
2076 * Then let's not retry again. */
2079 log_warning("Failed to send audit message: %m");
2085 void manager_send_unit_plymouth(Manager *m, Unit *u) {
2086 union sockaddr_union sa = PLYMOUTH_SOCKET;
2089 _cleanup_free_ char *message = NULL;
2090 _cleanup_close_ int fd = -1;
2092 /* Don't generate plymouth events if the service was already
2093 * started and we're just deserializing */
2094 if (m->n_reloading > 0)
2097 if (m->running_as != SYSTEMD_SYSTEM)
2100 if (detect_container(NULL) > 0)
2103 if (u->type != UNIT_SERVICE &&
2104 u->type != UNIT_MOUNT &&
2105 u->type != UNIT_SWAP)
2108 /* We set SOCK_NONBLOCK here so that we rather drop the
2109 * message then wait for plymouth */
2110 fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
2112 log_error("socket() failed: %m");
2116 if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
2118 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2119 log_error("connect() failed: %m");
2123 if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) {
2129 if (write(fd, message, n + 1) != n + 1)
2130 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2131 log_error("Failed to write Plymouth message: %m");
2134 void manager_dispatch_bus_name_owner_changed(
2137 const char* old_owner,
2138 const char *new_owner) {
2145 u = hashmap_get(m->watch_bus, name);
2149 UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner);
2152 int manager_open_serialization(Manager *m, FILE **_f) {
2159 path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp";
2160 fd = open_tmpfile(path, O_RDWR|O_CLOEXEC);
2164 log_debug("Serializing state to %s", path);
2166 f = fdopen(fd, "w+");
2177 int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) {
2190 fprintf(f, "current-job-id=%i\n", m->current_job_id);
2191 fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr));
2192 fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs);
2193 fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs);
2195 dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp);
2196 dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp);
2197 dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp);
2198 dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp);
2201 dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp);
2202 dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp);
2203 dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp);
2204 dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp);
2205 dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp);
2206 dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp);
2207 dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp);
2208 dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp);
2211 if (!switching_root) {
2212 STRV_FOREACH(e, m->environment) {
2213 _cleanup_free_ char *ce;
2219 fprintf(f, "env=%s\n", *e);
2223 if (m->notify_fd >= 0) {
2226 copy = fdset_put_dup(fds, m->notify_fd);
2230 fprintf(f, "notify-fd=%i\n", copy);
2231 fprintf(f, "notify-socket=%s\n", m->notify_socket);
2234 if (m->kdbus_fd >= 0) {
2237 copy = fdset_put_dup(fds, m->kdbus_fd);
2241 fprintf(f, "kdbus-fd=%i\n", copy);
2244 bus_track_serialize(m->subscribed, f);
2248 HASHMAP_FOREACH_KEY(u, t, m->units, i) {
2256 r = unit_serialize(u, f, fds, !switching_root);
2263 assert(m->n_reloading > 0);
2269 r = bus_fdset_add_all(m, fds);
2276 int manager_deserialize(Manager *m, FILE *f, FDSet *fds) {
2282 log_debug("Deserializing state...");
2287 char line[LINE_MAX], *l;
2289 if (!fgets(line, sizeof(line), f)) {
2304 if (startswith(l, "current-job-id=")) {
2307 if (safe_atou32(l+15, &id) < 0)
2308 log_warning("Failed to parse current job id value %s", l+15);
2310 m->current_job_id = MAX(m->current_job_id, id);
2312 } else if (startswith(l, "n-installed-jobs=")) {
2315 if (safe_atou32(l+17, &n) < 0)
2316 log_warning("Failed to parse installed jobs counter %s", l+17);
2318 m->n_installed_jobs += n;
2320 } else if (startswith(l, "n-failed-jobs=")) {
2323 if (safe_atou32(l+14, &n) < 0)
2324 log_warning("Failed to parse failed jobs counter %s", l+14);
2326 m->n_failed_jobs += n;
2328 } else if (startswith(l, "taint-usr=")) {
2331 b = parse_boolean(l+10);
2333 log_warning("Failed to parse taint /usr flag %s", l+10);
2335 m->taint_usr = m->taint_usr || b;
2337 } else if (startswith(l, "firmware-timestamp="))
2338 dual_timestamp_deserialize(l+19, &m->firmware_timestamp);
2339 else if (startswith(l, "loader-timestamp="))
2340 dual_timestamp_deserialize(l+17, &m->loader_timestamp);
2341 else if (startswith(l, "kernel-timestamp="))
2342 dual_timestamp_deserialize(l+17, &m->kernel_timestamp);
2343 else if (startswith(l, "initrd-timestamp="))
2344 dual_timestamp_deserialize(l+17, &m->initrd_timestamp);
2345 else if (startswith(l, "userspace-timestamp="))
2346 dual_timestamp_deserialize(l+20, &m->userspace_timestamp);
2347 else if (startswith(l, "finish-timestamp="))
2348 dual_timestamp_deserialize(l+17, &m->finish_timestamp);
2349 else if (startswith(l, "security-start-timestamp="))
2350 dual_timestamp_deserialize(l+25, &m->security_start_timestamp);
2351 else if (startswith(l, "security-finish-timestamp="))
2352 dual_timestamp_deserialize(l+26, &m->security_finish_timestamp);
2353 else if (startswith(l, "generators-start-timestamp="))
2354 dual_timestamp_deserialize(l+27, &m->generators_start_timestamp);
2355 else if (startswith(l, "generators-finish-timestamp="))
2356 dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp);
2357 else if (startswith(l, "units-load-start-timestamp="))
2358 dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp);
2359 else if (startswith(l, "units-load-finish-timestamp="))
2360 dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp);
2361 else if (startswith(l, "env=")) {
2362 _cleanup_free_ char *uce = NULL;
2365 uce = cunescape(l+4);
2371 e = strv_env_set(m->environment, uce);
2377 strv_free(m->environment);
2380 } else if (startswith(l, "notify-fd=")) {
2383 if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2384 log_warning("Failed to parse notify fd: %s", l + 10);
2386 m->notify_event_source = sd_event_source_unref(m->notify_event_source);
2387 safe_close(m->notify_fd);
2388 m->notify_fd = fdset_remove(fds, fd);
2391 } else if (startswith(l, "notify-socket=")) {
2400 free(m->notify_socket);
2401 m->notify_socket = n;
2403 } else if (startswith(l, "kdbus-fd=")) {
2406 if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2407 log_warning("Failed to parse kdbus fd: %s", l + 9);
2409 safe_close(m->kdbus_fd);
2410 m->kdbus_fd = fdset_remove(fds, fd);
2413 } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) < 0)
2414 log_warning("Unknown serialization item '%s'", l);
2419 char name[UNIT_NAME_MAX+2];
2422 if (!fgets(name, sizeof(name), f)) {
2433 r = manager_load_unit(m, strstrip(name), NULL, NULL, &u);
2437 r = unit_deserialize(u, f, fds);
2446 assert(m->n_reloading > 0);
2452 int manager_reload(Manager *m) {
2454 _cleanup_fclose_ FILE *f = NULL;
2455 _cleanup_fdset_free_ FDSet *fds = NULL;
2459 r = manager_open_serialization(m, &f);
2464 bus_manager_send_reloading(m, true);
2472 r = manager_serialize(m, f, fds, false);
2478 if (fseeko(f, 0, SEEK_SET) < 0) {
2483 /* From here on there is no way back. */
2484 manager_clear_jobs_and_units(m);
2485 manager_undo_generators(m);
2486 lookup_paths_free(&m->lookup_paths);
2488 /* Find new unit paths */
2489 manager_run_generators(m);
2491 q = lookup_paths_init(
2492 &m->lookup_paths, m->running_as, true,
2494 m->generator_unit_path,
2495 m->generator_unit_path_early,
2496 m->generator_unit_path_late);
2500 manager_build_unit_path_cache(m);
2502 /* First, enumerate what we can from all config files */
2503 q = manager_enumerate(m);
2507 /* Second, deserialize our stored data */
2508 q = manager_deserialize(m, f, fds);
2515 /* Re-register notify_fd as event source */
2516 q = manager_setup_notify(m);
2520 /* Third, fire things up! */
2521 q = manager_coldplug(m);
2525 assert(m->n_reloading > 0);
2528 m->send_reloading_done = true;
2533 bool manager_is_reloading_or_reexecuting(Manager *m) {
2536 return m->n_reloading != 0;
2539 void manager_reset_failed(Manager *m) {
2545 HASHMAP_FOREACH(u, m->units, i)
2546 unit_reset_failed(u);
2549 bool manager_unit_inactive_or_pending(Manager *m, const char *name) {
2555 /* Returns true if the unit is inactive or going down */
2556 u = manager_get_unit(m, name);
2560 return unit_inactive_or_pending(u);
2563 static void manager_notify_finished(Manager *m) {
2564 char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
2565 usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec;
2570 if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) {
2572 /* Note that m->kernel_usec.monotonic is always at 0,
2573 * and m->firmware_usec.monotonic and
2574 * m->loader_usec.monotonic should be considered
2575 * negative values. */
2577 firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic;
2578 loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic;
2579 userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2580 total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic;
2582 if (dual_timestamp_is_set(&m->initrd_timestamp)) {
2584 kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic;
2585 initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic;
2587 log_struct(LOG_INFO,
2588 MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2589 "KERNEL_USEC="USEC_FMT, kernel_usec,
2590 "INITRD_USEC="USEC_FMT, initrd_usec,
2591 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2592 "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
2593 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2594 format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC),
2595 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2596 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
2599 kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic;
2602 log_struct(LOG_INFO,
2603 MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2604 "KERNEL_USEC="USEC_FMT, kernel_usec,
2605 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2606 "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.",
2607 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2608 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2609 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
2613 firmware_usec = loader_usec = initrd_usec = kernel_usec = 0;
2614 total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2616 log_struct(LOG_INFO,
2617 MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2618 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2619 "MESSAGE=Startup finished in %s.",
2620 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
2624 bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec);
2628 "STATUS=Startup finished in %s.",
2629 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC));
2632 void manager_check_finished(Manager *m) {
2638 if (m->n_running_jobs == 0)
2639 m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source);
2641 if (hashmap_size(m->jobs) > 0) {
2643 if (m->jobs_in_progress_event_source)
2644 sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC);
2649 manager_flip_auto_status(m, false);
2651 /* Notify Type=idle units that we are done now */
2652 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
2653 manager_close_idle_pipe(m);
2655 /* Turn off confirm spawn now */
2656 m->confirm_spawn = false;
2658 /* No need to update ask password status when we're going non-interactive */
2659 manager_close_ask_password(m);
2661 /* This is no longer the first boot */
2662 manager_set_first_boot(m, false);
2664 if (dual_timestamp_is_set(&m->finish_timestamp))
2667 dual_timestamp_get(&m->finish_timestamp);
2669 manager_notify_finished(m);
2671 SET_FOREACH(u, m->startup_units, i)
2673 cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m));
2676 static int create_generator_dir(Manager *m, char **generator, const char *name) {
2687 if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) {
2688 /* systemd --system, not running --test */
2690 p = strappend("/run/systemd/", name);
2694 r = mkdir_p_label(p, 0755);
2696 log_error("Failed to create generator directory %s: %s",
2701 } else if (m->running_as == SYSTEMD_USER) {
2702 const char *s = NULL;
2704 s = getenv("XDG_RUNTIME_DIR");
2707 p = strjoin(s, "/systemd/", name, NULL);
2711 r = mkdir_p_label(p, 0755);
2713 log_error("Failed to create generator directory %s: %s",
2719 /* systemd --system --test */
2721 p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL);
2726 log_error("Failed to create generator directory %s: %m",
2737 static void trim_generator_dir(Manager *m, char **generator) {
2744 if (rmdir(*generator) >= 0) {
2752 void manager_run_generators(Manager *m) {
2753 _cleanup_closedir_ DIR *d = NULL;
2754 const char *generator_path;
2755 const char *argv[5];
2763 generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH;
2764 d = opendir(generator_path);
2766 if (errno == ENOENT)
2769 log_error("Failed to enumerate generator directory %s: %m",
2774 r = create_generator_dir(m, &m->generator_unit_path, "generator");
2778 r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early");
2782 r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late");
2786 argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */
2787 argv[1] = m->generator_unit_path;
2788 argv[2] = m->generator_unit_path_early;
2789 argv[3] = m->generator_unit_path_late;
2792 RUN_WITH_UMASK(0022)
2793 execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv);
2796 trim_generator_dir(m, &m->generator_unit_path);
2797 trim_generator_dir(m, &m->generator_unit_path_early);
2798 trim_generator_dir(m, &m->generator_unit_path_late);
2801 static void remove_generator_dir(Manager *m, char **generator) {
2808 strv_remove(m->lookup_paths.unit_path, *generator);
2809 rm_rf(*generator, false, true, false);
2815 void manager_undo_generators(Manager *m) {
2818 remove_generator_dir(m, &m->generator_unit_path);
2819 remove_generator_dir(m, &m->generator_unit_path_early);
2820 remove_generator_dir(m, &m->generator_unit_path_late);
2823 int manager_environment_add(Manager *m, char **minus, char **plus) {
2824 char **a = NULL, **b = NULL, **l;
2829 if (!strv_isempty(minus)) {
2830 a = strv_env_delete(l, 1, minus);
2837 if (!strv_isempty(plus)) {
2838 b = strv_env_merge(2, l, plus);
2847 if (m->environment != l)
2848 strv_free(m->environment);
2855 manager_clean_environment(m);
2856 strv_sort(m->environment);
2861 int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) {
2866 for (i = 0; i < _RLIMIT_MAX; i++) {
2867 if (!default_rlimit[i])
2870 m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1);
2878 void manager_recheck_journal(Manager *m) {
2883 if (m->running_as != SYSTEMD_SYSTEM)
2886 u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET);
2887 if (u && SOCKET(u)->state != SOCKET_RUNNING) {
2888 log_close_journal();
2892 u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE);
2893 if (u && SERVICE(u)->state != SERVICE_RUNNING) {
2894 log_close_journal();
2898 /* Hmm, OK, so the socket is fully up and the service is up
2899 * too, then let's make use of the thing. */
2903 void manager_set_show_status(Manager *m, ShowStatus mode) {
2905 assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY));
2907 if (m->running_as != SYSTEMD_SYSTEM)
2910 m->show_status = mode;
2913 touch("/run/systemd/show-status");
2915 unlink("/run/systemd/show-status");
2918 static bool manager_get_show_status(Manager *m, StatusType type) {
2921 if (m->running_as != SYSTEMD_SYSTEM)
2924 if (m->no_console_output)
2927 if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING))
2930 /* If we cannot find out the status properly, just proceed. */
2931 if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0)
2934 if (m->show_status > 0)
2937 /* If Plymouth is running make sure we show the status, so
2938 * that there's something nice to see when people press Esc */
2939 return plymouth_running();
2942 void manager_set_first_boot(Manager *m, bool b) {
2945 if (m->running_as != SYSTEMD_SYSTEM)
2951 touch("/run/systemd/first-boot");
2953 unlink("/run/systemd/first-boot");
2956 void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) {
2959 if (!manager_get_show_status(m, type))
2962 /* XXX We should totally drop the check for ephemeral here
2963 * and thus effectively make 'Type=idle' pointless. */
2964 if (type == STATUS_TYPE_EPHEMERAL && m->n_on_console > 0)
2967 va_start(ap, format);
2968 status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap);
2972 int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) {
2973 _cleanup_free_ char *p = NULL;
2981 p = unit_name_from_path(path, suffix);
2985 found = manager_get_unit(m, p);
2995 Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) {
2996 char p[strlen(path)+1];
3002 path_kill_slashes(p);
3004 return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p);
3007 const char *manager_get_runtime_prefix(Manager *m) {
3010 return m->running_as == SYSTEMD_SYSTEM ?
3012 getenv("XDG_RUNTIME_DIR");
3015 ManagerState manager_state(Manager *m) {
3020 /* Did we ever finish booting? If not then we are still starting up */
3021 if (!dual_timestamp_is_set(&m->finish_timestamp)) {
3023 u = manager_get_unit(m, SPECIAL_BASIC_TARGET);
3024 if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u)))
3025 return MANAGER_INITIALIZING;
3027 return MANAGER_STARTING;
3030 /* Is the special shutdown target queued? If so, we are in shutdown state */
3031 u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET);
3032 if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))
3033 return MANAGER_STOPPING;
3035 /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */
3036 u = manager_get_unit(m, SPECIAL_RESCUE_TARGET);
3037 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3038 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3039 return MANAGER_MAINTENANCE;
3041 u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET);
3042 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3043 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3044 return MANAGER_MAINTENANCE;
3046 /* Are there any failed units? If so, we are in degraded mode */
3047 if (set_size(m->failed_units) > 0)
3048 return MANAGER_DEGRADED;
3050 return MANAGER_RUNNING;
3053 static const char *const manager_state_table[_MANAGER_STATE_MAX] = {
3054 [MANAGER_INITIALIZING] = "initializing",
3055 [MANAGER_STARTING] = "starting",
3056 [MANAGER_RUNNING] = "running",
3057 [MANAGER_DEGRADED] = "degraded",
3058 [MANAGER_MAINTENANCE] = "maintenance",
3059 [MANAGER_STOPPING] = "stopping",
3062 DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState);