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 void manager_free(Manager *m) {
898 manager_clear_jobs_and_units(m);
900 for (c = 0; c < _UNIT_TYPE_MAX; c++)
901 if (unit_vtable[c]->shutdown)
902 unit_vtable[c]->shutdown(m);
904 /* If we reexecute ourselves, we keep the root cgroup
906 manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE);
908 manager_undo_generators(m);
912 hashmap_free(m->units);
913 hashmap_free(m->jobs);
914 hashmap_free(m->watch_pids1);
915 hashmap_free(m->watch_pids2);
916 hashmap_free(m->watch_bus);
918 set_free(m->startup_units);
919 set_free(m->failed_units);
921 sd_event_source_unref(m->signal_event_source);
922 sd_event_source_unref(m->notify_event_source);
923 sd_event_source_unref(m->time_change_event_source);
924 sd_event_source_unref(m->jobs_in_progress_event_source);
925 sd_event_source_unref(m->idle_pipe_event_source);
926 sd_event_source_unref(m->run_queue_event_source);
928 safe_close(m->signal_fd);
929 safe_close(m->notify_fd);
930 safe_close(m->time_change_fd);
931 safe_close(m->kdbus_fd);
933 manager_close_ask_password(m);
935 manager_close_idle_pipe(m);
938 sd_event_unref(m->event);
940 free(m->notify_socket);
942 lookup_paths_free(&m->lookup_paths);
943 strv_free(m->environment);
945 hashmap_free(m->cgroup_unit);
946 set_free_free(m->unit_path_cache);
948 free(m->switch_root);
949 free(m->switch_root_init);
951 for (i = 0; i < _RLIMIT_MAX; i++)
954 assert(hashmap_isempty(m->units_requiring_mounts_for));
955 hashmap_free(m->units_requiring_mounts_for);
960 int manager_enumerate(Manager *m) {
966 /* Let's ask every type to load all units from disk/kernel
967 * that it might know */
968 for (c = 0; c < _UNIT_TYPE_MAX; c++)
969 if (unit_vtable[c]->enumerate) {
970 q = unit_vtable[c]->enumerate(m);
975 manager_dispatch_load_queue(m);
979 static int manager_coldplug(Manager *m) {
987 /* Then, let's set up their initial state. */
988 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
995 q = unit_coldplug(u);
1003 static void manager_build_unit_path_cache(Manager *m) {
1005 _cleanup_closedir_ DIR *d = NULL;
1010 set_free_free(m->unit_path_cache);
1012 m->unit_path_cache = set_new(&string_hash_ops);
1013 if (!m->unit_path_cache) {
1014 log_error("Failed to allocate unit path cache.");
1018 /* This simply builds a list of files we know exist, so that
1019 * we don't always have to go to disk */
1021 STRV_FOREACH(i, m->lookup_paths.unit_path) {
1026 if (errno != ENOENT)
1027 log_error("Failed to open directory %s: %m", *i);
1031 while ((de = readdir(d))) {
1034 if (ignore_file(de->d_name))
1037 p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL);
1043 r = set_consume(m->unit_path_cache, p);
1055 log_error("Failed to build unit path cache: %s", strerror(-r));
1057 set_free_free(m->unit_path_cache);
1058 m->unit_path_cache = NULL;
1062 static int manager_distribute_fds(Manager *m, FDSet *fds) {
1069 HASHMAP_FOREACH(u, m->units, i) {
1071 if (fdset_size(fds) <= 0)
1074 if (UNIT_VTABLE(u)->distribute_fds) {
1075 r = UNIT_VTABLE(u)->distribute_fds(u, fds);
1084 int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
1089 dual_timestamp_get(&m->generators_start_timestamp);
1090 manager_run_generators(m);
1091 dual_timestamp_get(&m->generators_finish_timestamp);
1093 r = lookup_paths_init(
1094 &m->lookup_paths, m->running_as, true,
1096 m->generator_unit_path,
1097 m->generator_unit_path_early,
1098 m->generator_unit_path_late);
1102 manager_build_unit_path_cache(m);
1104 /* If we will deserialize make sure that during enumeration
1105 * this is already known, so we increase the counter here
1110 /* First, enumerate what we can from all config files */
1111 dual_timestamp_get(&m->units_load_start_timestamp);
1112 r = manager_enumerate(m);
1113 dual_timestamp_get(&m->units_load_finish_timestamp);
1115 /* Second, deserialize if there is something to deserialize */
1117 r = manager_deserialize(m, serialization, fds);
1119 /* Any fds left? Find some unit which wants them. This is
1120 * useful to allow container managers to pass some file
1121 * descriptors to us pre-initialized. This enables
1122 * socket-based activation of entire containers. */
1123 if (fdset_size(fds) > 0) {
1124 q = manager_distribute_fds(m, fds);
1125 if (q < 0 && r == 0)
1129 /* We might have deserialized the notify fd, but if we didn't
1130 * then let's create the bus now */
1131 q = manager_setup_notify(m);
1132 if (q < 0 && r == 0)
1135 /* We might have deserialized the kdbus control fd, but if we
1136 * didn't, then let's create the bus now. */
1137 manager_setup_kdbus(m);
1138 manager_connect_bus(m, !!serialization);
1139 bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed);
1141 /* Third, fire things up! */
1142 q = manager_coldplug(m);
1143 if (q < 0 && r == 0)
1146 if (serialization) {
1147 assert(m->n_reloading > 0);
1150 /* Let's wait for the UnitNew/JobNew messages being
1151 * sent, before we notify that the reload is
1153 m->send_reloading_done = true;
1159 int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) {
1164 assert(type < _JOB_TYPE_MAX);
1166 assert(mode < _JOB_MODE_MAX);
1168 if (mode == JOB_ISOLATE && type != JOB_START)
1169 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start.");
1171 if (mode == JOB_ISOLATE && !unit->allow_isolate)
1172 return sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated.");
1174 log_debug_unit(unit->id,
1175 "Trying to enqueue job %s/%s/%s", unit->id,
1176 job_type_to_string(type), job_mode_to_string(mode));
1178 job_type_collapse(&type, unit);
1180 tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY);
1184 r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false,
1185 mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS,
1186 mode == JOB_IGNORE_DEPENDENCIES, e);
1190 if (mode == JOB_ISOLATE) {
1191 r = transaction_add_isolate_jobs(tr, m);
1196 r = transaction_activate(tr, m, mode, e);
1200 log_debug_unit(unit->id,
1201 "Enqueued job %s/%s as %u", unit->id,
1202 job_type_to_string(type), (unsigned) tr->anchor_job->id);
1205 *_ret = tr->anchor_job;
1207 transaction_free(tr);
1211 transaction_abort(tr);
1212 transaction_free(tr);
1216 int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, sd_bus_error *e, Job **_ret) {
1221 assert(type < _JOB_TYPE_MAX);
1223 assert(mode < _JOB_MODE_MAX);
1225 r = manager_load_unit(m, name, NULL, NULL, &unit);
1229 return manager_add_job(m, type, unit, mode, override, e, _ret);
1232 Job *manager_get_job(Manager *m, uint32_t id) {
1235 return hashmap_get(m->jobs, UINT32_TO_PTR(id));
1238 Unit *manager_get_unit(Manager *m, const char *name) {
1242 return hashmap_get(m->units, name);
1245 unsigned manager_dispatch_load_queue(Manager *m) {
1251 /* Make sure we are not run recursively */
1252 if (m->dispatching_load_queue)
1255 m->dispatching_load_queue = true;
1257 /* Dispatches the load queue. Takes a unit from the queue and
1258 * tries to load its data until the queue is empty */
1260 while ((u = m->load_queue)) {
1261 assert(u->in_load_queue);
1267 m->dispatching_load_queue = false;
1271 int manager_load_unit_prepare(
1283 assert(name || path);
1285 /* This will prepare the unit for loading, but not actually
1286 * load anything from disk. */
1288 if (path && !is_path(path))
1289 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
1292 name = basename(path);
1294 t = unit_name_to_type(name);
1296 if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID))
1297 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name);
1299 ret = manager_get_unit(m, name);
1305 ret = unit_new(m, unit_vtable[t]->object_size);
1310 ret->fragment_path = strdup(path);
1311 if (!ret->fragment_path) {
1317 r = unit_add_name(ret, name);
1323 unit_add_to_load_queue(ret);
1324 unit_add_to_dbus_queue(ret);
1325 unit_add_to_gc_queue(ret);
1333 int manager_load_unit(
1344 /* This will load the service information files, but not actually
1345 * start any services or anything. */
1347 r = manager_load_unit_prepare(m, name, path, e, _ret);
1351 manager_dispatch_load_queue(m);
1354 *_ret = unit_follow_merge(*_ret);
1359 void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) {
1366 HASHMAP_FOREACH(j, s->jobs, i)
1367 job_dump(j, f, prefix);
1370 void manager_dump_units(Manager *s, FILE *f, const char *prefix) {
1378 HASHMAP_FOREACH_KEY(u, t, s->units, i)
1380 unit_dump(u, f, prefix);
1383 void manager_clear_jobs(Manager *m) {
1388 while ((j = hashmap_first(m->jobs)))
1389 /* No need to recurse. We're cancelling all jobs. */
1390 job_finish_and_invalidate(j, JOB_CANCELED, false);
1393 static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) {
1394 Manager *m = userdata;
1400 while ((j = m->run_queue)) {
1401 assert(j->installed);
1402 assert(j->in_run_queue);
1404 job_run_and_invalidate(j);
1407 if (m->n_running_jobs > 0)
1408 manager_watch_jobs_in_progress(m);
1410 if (m->n_on_console > 0)
1411 manager_watch_idle_pipe(m);
1416 static unsigned manager_dispatch_dbus_queue(Manager *m) {
1423 if (m->dispatching_dbus_queue)
1426 m->dispatching_dbus_queue = true;
1428 while ((u = m->dbus_unit_queue)) {
1429 assert(u->in_dbus_queue);
1431 bus_unit_send_change_signal(u);
1435 while ((j = m->dbus_job_queue)) {
1436 assert(j->in_dbus_queue);
1438 bus_job_send_change_signal(j);
1442 m->dispatching_dbus_queue = false;
1444 if (m->send_reloading_done) {
1445 m->send_reloading_done = false;
1447 bus_manager_send_reloading(m, false);
1450 if (m->queued_message)
1451 bus_send_queued_message(m);
1456 static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n) {
1457 _cleanup_strv_free_ char **tags = NULL;
1464 tags = strv_split(buf, "\n\r");
1470 log_debug_unit(u->id, "Got notification message for unit %s", u->id);
1472 if (UNIT_VTABLE(u)->notify_message)
1473 UNIT_VTABLE(u)->notify_message(u, pid, tags);
1476 static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1477 Manager *m = userdata;
1481 assert(m->notify_fd == fd);
1483 if (revents != EPOLLIN) {
1484 log_warning("Got unexpected poll event for notify fd.");
1490 struct iovec iovec = {
1492 .iov_len = sizeof(buf)-1,
1497 struct cmsghdr cmsghdr;
1498 uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
1501 struct msghdr msghdr = {
1504 .msg_control = &control,
1505 .msg_controllen = sizeof(control),
1507 struct ucred *ucred;
1510 n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT);
1515 if (errno == EAGAIN || errno == EINTR)
1521 if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||
1522 control.cmsghdr.cmsg_level != SOL_SOCKET ||
1523 control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||
1524 control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {
1525 log_warning("Received notify message without credentials. Ignoring.");
1529 ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
1531 assert((size_t) n < sizeof(buf));
1534 /* Notify every unit that might be interested, but try
1535 * to avoid notifying the same one multiple times. */
1536 u1 = manager_get_unit_by_pid(m, ucred->pid);
1538 manager_invoke_notify_message(m, u1, ucred->pid, buf, n);
1542 u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid));
1543 if (u2 && u2 != u1) {
1544 manager_invoke_notify_message(m, u2, ucred->pid, buf, n);
1548 u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid));
1549 if (u3 && u3 != u2 && u3 != u1) {
1550 manager_invoke_notify_message(m, u3, ucred->pid, buf, n);
1555 log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid);
1561 static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) {
1566 log_debug_unit(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id);
1568 unit_unwatch_pid(u, si->si_pid);
1569 UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status);
1572 static int manager_dispatch_sigchld(Manager *m) {
1578 /* First we call waitd() for a PID and do not reap the
1579 * zombie. That way we can still access /proc/$PID for
1580 * it while it is a zombie. */
1581 if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) {
1583 if (errno == ECHILD)
1595 if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) {
1596 _cleanup_free_ char *name = NULL;
1599 get_process_comm(si.si_pid, &name);
1601 log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)",
1602 si.si_pid, strna(name),
1603 sigchld_code_to_string(si.si_code),
1605 strna(si.si_code == CLD_EXITED
1606 ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL)
1607 : signal_to_string(si.si_status)));
1609 /* And now figure out the unit this belongs
1610 * to, it might be multiple... */
1611 u1 = manager_get_unit_by_pid(m, si.si_pid);
1613 invoke_sigchld_event(m, u1, &si);
1614 u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid));
1616 invoke_sigchld_event(m, u2, &si);
1617 u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid));
1618 if (u3 && u3 != u2 && u3 != u1)
1619 invoke_sigchld_event(m, u3, &si);
1622 /* And now, we actually reap the zombie. */
1623 if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) {
1634 static int manager_start_target(Manager *m, const char *name, JobMode mode) {
1635 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1638 log_debug_unit(name, "Activating special unit %s", name);
1640 r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL);
1642 log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r));
1647 static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1648 Manager *m = userdata;
1650 struct signalfd_siginfo sfsi;
1651 bool sigchld = false;
1654 assert(m->signal_fd == fd);
1656 if (revents != EPOLLIN) {
1657 log_warning("Got unexpected events from signal file descriptor.");
1662 n = read(m->signal_fd, &sfsi, sizeof(sfsi));
1663 if (n != sizeof(sfsi)) {
1668 if (errno == EINTR || errno == EAGAIN)
1674 log_received_signal(sfsi.ssi_signo == SIGCHLD ||
1675 (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER)
1676 ? LOG_DEBUG : LOG_INFO,
1679 switch (sfsi.ssi_signo) {
1686 if (m->running_as == SYSTEMD_SYSTEM) {
1687 /* This is for compatibility with the
1688 * original sysvinit */
1689 m->exit_code = MANAGER_REEXECUTE;
1696 if (m->running_as == SYSTEMD_SYSTEM) {
1697 manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
1701 /* Run the exit target if there is one, if not, just exit. */
1702 if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) {
1703 m->exit_code = MANAGER_EXIT;
1710 if (m->running_as == SYSTEMD_SYSTEM)
1711 manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE);
1713 /* This is a nop on non-init */
1717 if (m->running_as == SYSTEMD_SYSTEM)
1718 manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE);
1720 /* This is a nop on non-init */
1726 u = manager_get_unit(m, SPECIAL_DBUS_SERVICE);
1728 if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) {
1729 log_info("Trying to reconnect to bus...");
1733 if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) {
1734 log_info("Loading D-Bus service...");
1735 manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE);
1742 _cleanup_free_ char *dump = NULL;
1743 _cleanup_fclose_ FILE *f = NULL;
1746 f = open_memstream(&dump, &size);
1748 log_warning("Failed to allocate memory stream.");
1752 manager_dump_units(m, f, "\t");
1753 manager_dump_jobs(m, f, "\t");
1756 log_warning("Failed to write status stream");
1761 log_warning("Failed to flush status stream");
1765 log_dump(LOG_INFO, dump);
1770 m->exit_code = MANAGER_RELOAD;
1775 /* Starting SIGRTMIN+0 */
1776 static const char * const target_table[] = {
1777 [0] = SPECIAL_DEFAULT_TARGET,
1778 [1] = SPECIAL_RESCUE_TARGET,
1779 [2] = SPECIAL_EMERGENCY_TARGET,
1780 [3] = SPECIAL_HALT_TARGET,
1781 [4] = SPECIAL_POWEROFF_TARGET,
1782 [5] = SPECIAL_REBOOT_TARGET,
1783 [6] = SPECIAL_KEXEC_TARGET
1786 /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */
1787 static const ManagerExitCode code_table[] = {
1789 [1] = MANAGER_POWEROFF,
1790 [2] = MANAGER_REBOOT,
1794 if ((int) sfsi.ssi_signo >= SIGRTMIN+0 &&
1795 (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) {
1796 int idx = (int) sfsi.ssi_signo - SIGRTMIN;
1797 manager_start_target(m, target_table[idx],
1798 (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE);
1802 if ((int) sfsi.ssi_signo >= SIGRTMIN+13 &&
1803 (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) {
1804 m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13];
1808 switch (sfsi.ssi_signo - SIGRTMIN) {
1811 log_debug("Enabling showing of status.");
1812 manager_set_show_status(m, SHOW_STATUS_YES);
1816 log_debug("Disabling showing of status.");
1817 manager_set_show_status(m, SHOW_STATUS_NO);
1821 log_set_max_level(LOG_DEBUG);
1822 log_notice("Setting log level to debug.");
1826 log_set_max_level(LOG_INFO);
1827 log_notice("Setting log level to info.");
1831 if (m->running_as == SYSTEMD_USER) {
1832 m->exit_code = MANAGER_EXIT;
1836 /* This is a nop on init */
1840 case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */
1841 log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
1842 log_notice("Setting log target to journal-or-kmsg.");
1846 log_set_target(LOG_TARGET_CONSOLE);
1847 log_notice("Setting log target to console.");
1851 log_set_target(LOG_TARGET_KMSG);
1852 log_notice("Setting log target to kmsg.");
1856 log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo));
1863 manager_dispatch_sigchld(m);
1868 static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1869 Manager *m = userdata;
1874 assert(m->time_change_fd == fd);
1876 log_struct(LOG_INFO,
1877 MESSAGE_ID(SD_MESSAGE_TIME_CHANGE),
1878 "MESSAGE=Time has been changed",
1881 /* Restart the watch */
1882 m->time_change_event_source = sd_event_source_unref(m->time_change_event_source);
1883 m->time_change_fd = safe_close(m->time_change_fd);
1885 manager_setup_time_change(m);
1887 HASHMAP_FOREACH(u, m->units, i)
1888 if (UNIT_VTABLE(u)->time_change)
1889 UNIT_VTABLE(u)->time_change(u);
1894 static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1895 Manager *m = userdata;
1898 assert(m->idle_pipe[2] == fd);
1900 m->no_console_output = m->n_on_console > 0;
1902 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
1903 manager_close_idle_pipe(m);
1908 static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) {
1909 Manager *m = userdata;
1916 manager_print_jobs_in_progress(m);
1918 next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC;
1919 r = sd_event_source_set_time(source, next);
1923 return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT);
1926 int manager_loop(Manager *m) {
1929 RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000);
1932 m->exit_code = MANAGER_OK;
1934 /* Release the path cache */
1935 set_free_free(m->unit_path_cache);
1936 m->unit_path_cache = NULL;
1938 manager_check_finished(m);
1940 /* There might still be some zombies hanging around from
1941 * before we were exec()'ed. Let's reap them. */
1942 r = manager_dispatch_sigchld(m);
1946 while (m->exit_code == MANAGER_OK) {
1949 if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM)
1952 if (!ratelimit_test(&rl)) {
1953 /* Yay, something is going seriously wrong, pause a little */
1954 log_warning("Looping too fast. Throttling execution a little.");
1959 if (manager_dispatch_load_queue(m) > 0)
1962 if (manager_dispatch_gc_queue(m) > 0)
1965 if (manager_dispatch_cleanup_queue(m) > 0)
1968 if (manager_dispatch_cgroup_queue(m) > 0)
1971 if (manager_dispatch_dbus_queue(m) > 0)
1974 /* Sleep for half the watchdog time */
1975 if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) {
1976 wait_usec = m->runtime_watchdog / 2;
1980 wait_usec = USEC_INFINITY;
1982 r = sd_event_run(m->event, wait_usec);
1984 log_error("Failed to run event loop: %s", strerror(-r));
1989 return m->exit_code;
1992 int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) {
1993 _cleanup_free_ char *n = NULL;
2001 r = unit_name_from_dbus_path(s, &n);
2005 r = manager_load_unit(m, n, NULL, e, &u);
2014 int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) {
2024 p = startswith(s, "/org/freedesktop/systemd1/job/");
2028 r = safe_atou(p, &id);
2032 j = manager_get_job(m, id);
2041 void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
2044 _cleanup_free_ char *p = NULL;
2048 audit_fd = get_audit_fd();
2052 /* Don't generate audit events if the service was already
2053 * started and we're just deserializing */
2054 if (m->n_reloading > 0)
2057 if (m->running_as != SYSTEMD_SYSTEM)
2060 if (u->type != UNIT_SERVICE)
2063 p = unit_name_to_prefix_and_instance(u->id);
2069 msg = strappenda("unit=", p);
2071 if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) {
2073 /* We aren't allowed to send audit messages?
2074 * Then let's not retry again. */
2077 log_warning("Failed to send audit message: %m");
2083 void manager_send_unit_plymouth(Manager *m, Unit *u) {
2084 union sockaddr_union sa = PLYMOUTH_SOCKET;
2087 _cleanup_free_ char *message = NULL;
2088 _cleanup_close_ int fd = -1;
2090 /* Don't generate plymouth events if the service was already
2091 * started and we're just deserializing */
2092 if (m->n_reloading > 0)
2095 if (m->running_as != SYSTEMD_SYSTEM)
2098 if (detect_container(NULL) > 0)
2101 if (u->type != UNIT_SERVICE &&
2102 u->type != UNIT_MOUNT &&
2103 u->type != UNIT_SWAP)
2106 /* We set SOCK_NONBLOCK here so that we rather drop the
2107 * message then wait for plymouth */
2108 fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
2110 log_error("socket() failed: %m");
2114 if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
2116 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2117 log_error("connect() failed: %m");
2121 if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) {
2127 if (write(fd, message, n + 1) != n + 1)
2128 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2129 log_error("Failed to write Plymouth message: %m");
2132 void manager_dispatch_bus_name_owner_changed(
2135 const char* old_owner,
2136 const char *new_owner) {
2143 u = hashmap_get(m->watch_bus, name);
2147 UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner);
2150 int manager_open_serialization(Manager *m, FILE **_f) {
2157 path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp";
2158 fd = open_tmpfile(path, O_RDWR|O_CLOEXEC);
2162 log_debug("Serializing state to %s", path);
2164 f = fdopen(fd, "w+");
2175 int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) {
2188 fprintf(f, "current-job-id=%i\n", m->current_job_id);
2189 fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr));
2190 fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs);
2191 fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs);
2193 dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp);
2194 dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp);
2195 dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp);
2196 dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp);
2199 dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp);
2200 dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp);
2201 dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp);
2202 dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp);
2203 dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp);
2204 dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp);
2205 dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp);
2206 dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp);
2209 if (!switching_root) {
2210 STRV_FOREACH(e, m->environment) {
2211 _cleanup_free_ char *ce;
2217 fprintf(f, "env=%s\n", *e);
2221 if (m->notify_fd >= 0) {
2224 copy = fdset_put_dup(fds, m->notify_fd);
2228 fprintf(f, "notify-fd=%i\n", copy);
2229 fprintf(f, "notify-socket=%s\n", m->notify_socket);
2232 if (m->kdbus_fd >= 0) {
2235 copy = fdset_put_dup(fds, m->kdbus_fd);
2239 fprintf(f, "kdbus-fd=%i\n", copy);
2242 bus_track_serialize(m->subscribed, f);
2246 HASHMAP_FOREACH_KEY(u, t, m->units, i) {
2254 r = unit_serialize(u, f, fds, !switching_root);
2261 assert(m->n_reloading > 0);
2267 r = bus_fdset_add_all(m, fds);
2274 int manager_deserialize(Manager *m, FILE *f, FDSet *fds) {
2280 log_debug("Deserializing state...");
2285 char line[LINE_MAX], *l;
2287 if (!fgets(line, sizeof(line), f)) {
2302 if (startswith(l, "current-job-id=")) {
2305 if (safe_atou32(l+15, &id) < 0)
2306 log_warning("Failed to parse current job id value %s", l+15);
2308 m->current_job_id = MAX(m->current_job_id, id);
2310 } else if (startswith(l, "n-installed-jobs=")) {
2313 if (safe_atou32(l+17, &n) < 0)
2314 log_warning("Failed to parse installed jobs counter %s", l+17);
2316 m->n_installed_jobs += n;
2318 } else if (startswith(l, "n-failed-jobs=")) {
2321 if (safe_atou32(l+14, &n) < 0)
2322 log_warning("Failed to parse failed jobs counter %s", l+14);
2324 m->n_failed_jobs += n;
2326 } else if (startswith(l, "taint-usr=")) {
2329 b = parse_boolean(l+10);
2331 log_warning("Failed to parse taint /usr flag %s", l+10);
2333 m->taint_usr = m->taint_usr || b;
2335 } else if (startswith(l, "firmware-timestamp="))
2336 dual_timestamp_deserialize(l+19, &m->firmware_timestamp);
2337 else if (startswith(l, "loader-timestamp="))
2338 dual_timestamp_deserialize(l+17, &m->loader_timestamp);
2339 else if (startswith(l, "kernel-timestamp="))
2340 dual_timestamp_deserialize(l+17, &m->kernel_timestamp);
2341 else if (startswith(l, "initrd-timestamp="))
2342 dual_timestamp_deserialize(l+17, &m->initrd_timestamp);
2343 else if (startswith(l, "userspace-timestamp="))
2344 dual_timestamp_deserialize(l+20, &m->userspace_timestamp);
2345 else if (startswith(l, "finish-timestamp="))
2346 dual_timestamp_deserialize(l+17, &m->finish_timestamp);
2347 else if (startswith(l, "security-start-timestamp="))
2348 dual_timestamp_deserialize(l+25, &m->security_start_timestamp);
2349 else if (startswith(l, "security-finish-timestamp="))
2350 dual_timestamp_deserialize(l+26, &m->security_finish_timestamp);
2351 else if (startswith(l, "generators-start-timestamp="))
2352 dual_timestamp_deserialize(l+27, &m->generators_start_timestamp);
2353 else if (startswith(l, "generators-finish-timestamp="))
2354 dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp);
2355 else if (startswith(l, "units-load-start-timestamp="))
2356 dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp);
2357 else if (startswith(l, "units-load-finish-timestamp="))
2358 dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp);
2359 else if (startswith(l, "env=")) {
2360 _cleanup_free_ char *uce = NULL;
2363 uce = cunescape(l+4);
2369 e = strv_env_set(m->environment, uce);
2375 strv_free(m->environment);
2378 } else if (startswith(l, "notify-fd=")) {
2381 if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2382 log_warning("Failed to parse notify fd: %s", l + 10);
2384 m->notify_event_source = sd_event_source_unref(m->notify_event_source);
2385 safe_close(m->notify_fd);
2386 m->notify_fd = fdset_remove(fds, fd);
2389 } else if (startswith(l, "notify-socket=")) {
2398 free(m->notify_socket);
2399 m->notify_socket = n;
2401 } else if (startswith(l, "kdbus-fd=")) {
2404 if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2405 log_warning("Failed to parse kdbus fd: %s", l + 9);
2407 safe_close(m->kdbus_fd);
2408 m->kdbus_fd = fdset_remove(fds, fd);
2411 } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) == 0)
2412 log_warning("Unknown serialization item '%s'", l);
2417 char name[UNIT_NAME_MAX+2];
2420 if (!fgets(name, sizeof(name), f)) {
2431 r = manager_load_unit(m, strstrip(name), NULL, NULL, &u);
2435 r = unit_deserialize(u, f, fds);
2444 assert(m->n_reloading > 0);
2450 int manager_reload(Manager *m) {
2452 _cleanup_fclose_ FILE *f = NULL;
2453 _cleanup_fdset_free_ FDSet *fds = NULL;
2457 r = manager_open_serialization(m, &f);
2462 bus_manager_send_reloading(m, true);
2470 r = manager_serialize(m, f, fds, false);
2476 if (fseeko(f, 0, SEEK_SET) < 0) {
2481 /* From here on there is no way back. */
2482 manager_clear_jobs_and_units(m);
2483 manager_undo_generators(m);
2484 lookup_paths_free(&m->lookup_paths);
2486 /* Find new unit paths */
2487 manager_run_generators(m);
2489 q = lookup_paths_init(
2490 &m->lookup_paths, m->running_as, true,
2492 m->generator_unit_path,
2493 m->generator_unit_path_early,
2494 m->generator_unit_path_late);
2498 manager_build_unit_path_cache(m);
2500 /* First, enumerate what we can from all config files */
2501 q = manager_enumerate(m);
2505 /* Second, deserialize our stored data */
2506 q = manager_deserialize(m, f, fds);
2513 /* Re-register notify_fd as event source */
2514 q = manager_setup_notify(m);
2518 /* Third, fire things up! */
2519 q = manager_coldplug(m);
2523 assert(m->n_reloading > 0);
2526 m->send_reloading_done = true;
2531 bool manager_is_reloading_or_reexecuting(Manager *m) {
2534 return m->n_reloading != 0;
2537 void manager_reset_failed(Manager *m) {
2543 HASHMAP_FOREACH(u, m->units, i)
2544 unit_reset_failed(u);
2547 bool manager_unit_inactive_or_pending(Manager *m, const char *name) {
2553 /* Returns true if the unit is inactive or going down */
2554 u = manager_get_unit(m, name);
2558 return unit_inactive_or_pending(u);
2561 static void manager_notify_finished(Manager *m) {
2562 char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
2563 usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec;
2568 if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) {
2570 /* Note that m->kernel_usec.monotonic is always at 0,
2571 * and m->firmware_usec.monotonic and
2572 * m->loader_usec.monotonic should be considered
2573 * negative values. */
2575 firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic;
2576 loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic;
2577 userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2578 total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic;
2580 if (dual_timestamp_is_set(&m->initrd_timestamp)) {
2582 kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic;
2583 initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic;
2585 log_struct(LOG_INFO,
2586 MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2587 "KERNEL_USEC="USEC_FMT, kernel_usec,
2588 "INITRD_USEC="USEC_FMT, initrd_usec,
2589 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2590 "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
2591 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2592 format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC),
2593 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2594 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
2597 kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic;
2600 log_struct(LOG_INFO,
2601 MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2602 "KERNEL_USEC="USEC_FMT, kernel_usec,
2603 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2604 "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.",
2605 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2606 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2607 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
2611 firmware_usec = loader_usec = initrd_usec = kernel_usec = 0;
2612 total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2614 log_struct(LOG_INFO,
2615 MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2616 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2617 "MESSAGE=Startup finished in %s.",
2618 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
2622 bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec);
2626 "STATUS=Startup finished in %s.",
2627 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC));
2630 void manager_check_finished(Manager *m) {
2636 if (m->n_running_jobs == 0)
2637 m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source);
2639 if (hashmap_size(m->jobs) > 0) {
2641 if (m->jobs_in_progress_event_source)
2642 sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC);
2647 manager_flip_auto_status(m, false);
2649 /* Notify Type=idle units that we are done now */
2650 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
2651 manager_close_idle_pipe(m);
2653 /* Turn off confirm spawn now */
2654 m->confirm_spawn = false;
2656 /* No need to update ask password status when we're going non-interactive */
2657 manager_close_ask_password(m);
2659 /* This is no longer the first boot */
2660 manager_set_first_boot(m, false);
2662 if (dual_timestamp_is_set(&m->finish_timestamp))
2665 dual_timestamp_get(&m->finish_timestamp);
2667 manager_notify_finished(m);
2669 SET_FOREACH(u, m->startup_units, i)
2671 cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m));
2674 static int create_generator_dir(Manager *m, char **generator, const char *name) {
2685 if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) {
2686 /* systemd --system, not running --test */
2688 p = strappend("/run/systemd/", name);
2692 r = mkdir_p_label(p, 0755);
2694 log_error("Failed to create generator directory %s: %s",
2699 } else if (m->running_as == SYSTEMD_USER) {
2700 const char *s = NULL;
2702 s = getenv("XDG_RUNTIME_DIR");
2705 p = strjoin(s, "/systemd/", name, NULL);
2709 r = mkdir_p_label(p, 0755);
2711 log_error("Failed to create generator directory %s: %s",
2717 /* systemd --system --test */
2719 p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL);
2724 log_error("Failed to create generator directory %s: %m",
2735 static void trim_generator_dir(Manager *m, char **generator) {
2742 if (rmdir(*generator) >= 0) {
2750 void manager_run_generators(Manager *m) {
2751 _cleanup_closedir_ DIR *d = NULL;
2752 const char *generator_path;
2753 const char *argv[5];
2761 generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH;
2762 d = opendir(generator_path);
2764 if (errno == ENOENT)
2767 log_error("Failed to enumerate generator directory %s: %m",
2772 r = create_generator_dir(m, &m->generator_unit_path, "generator");
2776 r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early");
2780 r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late");
2784 argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */
2785 argv[1] = m->generator_unit_path;
2786 argv[2] = m->generator_unit_path_early;
2787 argv[3] = m->generator_unit_path_late;
2790 RUN_WITH_UMASK(0022)
2791 execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv);
2794 trim_generator_dir(m, &m->generator_unit_path);
2795 trim_generator_dir(m, &m->generator_unit_path_early);
2796 trim_generator_dir(m, &m->generator_unit_path_late);
2799 static void remove_generator_dir(Manager *m, char **generator) {
2806 strv_remove(m->lookup_paths.unit_path, *generator);
2807 rm_rf(*generator, false, true, false);
2813 void manager_undo_generators(Manager *m) {
2816 remove_generator_dir(m, &m->generator_unit_path);
2817 remove_generator_dir(m, &m->generator_unit_path_early);
2818 remove_generator_dir(m, &m->generator_unit_path_late);
2821 int manager_environment_add(Manager *m, char **minus, char **plus) {
2822 char **a = NULL, **b = NULL, **l;
2827 if (!strv_isempty(minus)) {
2828 a = strv_env_delete(l, 1, minus);
2835 if (!strv_isempty(plus)) {
2836 b = strv_env_merge(2, l, plus);
2845 if (m->environment != l)
2846 strv_free(m->environment);
2853 manager_clean_environment(m);
2854 strv_sort(m->environment);
2859 int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) {
2864 for (i = 0; i < _RLIMIT_MAX; i++) {
2865 if (!default_rlimit[i])
2868 m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1);
2876 void manager_recheck_journal(Manager *m) {
2881 if (m->running_as != SYSTEMD_SYSTEM)
2884 u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET);
2885 if (u && SOCKET(u)->state != SOCKET_RUNNING) {
2886 log_close_journal();
2890 u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE);
2891 if (u && SERVICE(u)->state != SERVICE_RUNNING) {
2892 log_close_journal();
2896 /* Hmm, OK, so the socket is fully up and the service is up
2897 * too, then let's make use of the thing. */
2901 void manager_set_show_status(Manager *m, ShowStatus mode) {
2903 assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY));
2905 if (m->running_as != SYSTEMD_SYSTEM)
2908 m->show_status = mode;
2911 touch("/run/systemd/show-status");
2913 unlink("/run/systemd/show-status");
2916 static bool manager_get_show_status(Manager *m, StatusType type) {
2919 if (m->running_as != SYSTEMD_SYSTEM)
2922 if (m->no_console_output)
2925 if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING))
2928 /* If we cannot find out the status properly, just proceed. */
2929 if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0)
2932 if (m->show_status > 0)
2935 /* If Plymouth is running make sure we show the status, so
2936 * that there's something nice to see when people press Esc */
2937 return plymouth_running();
2940 void manager_set_first_boot(Manager *m, bool b) {
2943 if (m->running_as != SYSTEMD_SYSTEM)
2949 touch("/run/systemd/first-boot");
2951 unlink("/run/systemd/first-boot");
2954 void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) {
2957 if (!manager_get_show_status(m, type))
2960 /* XXX We should totally drop the check for ephemeral here
2961 * and thus effectively make 'Type=idle' pointless. */
2962 if (type == STATUS_TYPE_EPHEMERAL && m->n_on_console > 0)
2965 va_start(ap, format);
2966 status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap);
2970 int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) {
2971 _cleanup_free_ char *p = NULL;
2979 p = unit_name_from_path(path, suffix);
2983 found = manager_get_unit(m, p);
2993 Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) {
2994 char p[strlen(path)+1];
3000 path_kill_slashes(p);
3002 return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p);
3005 const char *manager_get_runtime_prefix(Manager *m) {
3008 return m->running_as == SYSTEMD_SYSTEM ?
3010 getenv("XDG_RUNTIME_DIR");
3013 ManagerState manager_state(Manager *m) {
3018 /* Did we ever finish booting? If not then we are still starting up */
3019 if (!dual_timestamp_is_set(&m->finish_timestamp)) {
3021 u = manager_get_unit(m, SPECIAL_BASIC_TARGET);
3022 if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u)))
3023 return MANAGER_INITIALIZING;
3025 return MANAGER_STARTING;
3028 /* Is the special shutdown target queued? If so, we are in shutdown state */
3029 u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET);
3030 if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))
3031 return MANAGER_STOPPING;
3033 /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */
3034 u = manager_get_unit(m, SPECIAL_RESCUE_TARGET);
3035 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3036 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3037 return MANAGER_MAINTENANCE;
3039 u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET);
3040 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3041 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3042 return MANAGER_MAINTENANCE;
3044 /* Are there any failed units? If so, we are in degraded mode */
3045 if (set_size(m->failed_units) > 0)
3046 return MANAGER_DEGRADED;
3048 return MANAGER_RUNNING;
3051 static const char *const manager_state_table[_MANAGER_STATE_MAX] = {
3052 [MANAGER_INITIALIZING] = "initializing",
3053 [MANAGER_STARTING] = "starting",
3054 [MANAGER_RUNNING] = "running",
3055 [MANAGER_DEGRADED] = "degraded",
3056 [MANAGER_MAINTENANCE] = "maintenance",
3057 [MANAGER_STOPPING] = "stopping",
3060 DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState);