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_errno(m->have_ask_password, "Failed to list /run/systemd/ask-password: %m");
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 return log_error_errno(r, "Failed to watch idle pipe: %m");
311 static void manager_close_idle_pipe(Manager *m) {
314 safe_close_pair(m->idle_pipe);
315 safe_close_pair(m->idle_pipe + 2);
318 static int manager_setup_time_change(Manager *m) {
321 /* We only care for the cancellation event, hence we set the
322 * timeout to the latest possible value. */
323 struct itimerspec its = {
324 .it_value.tv_sec = TIME_T_MAX,
328 assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX));
333 /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever
334 * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */
336 m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC);
337 if (m->time_change_fd < 0) {
338 log_error("Failed to create timerfd: %m");
342 if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) {
343 log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m");
344 m->time_change_fd = safe_close(m->time_change_fd);
348 r = sd_event_add_io(m->event, &m->time_change_event_source, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m);
350 return log_error_errno(r, "Failed to create time change event source: %m");
352 log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd.");
357 static int enable_special_signals(Manager *m) {
358 _cleanup_close_ int fd = -1;
362 /* Enable that we get SIGINT on control-alt-del. In containers
363 * this will fail with EPERM (older) or EINVAL (newer), so
365 if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL)
366 log_warning("Failed to enable ctrl-alt-del handling: %m");
368 fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);
370 /* Support systems without virtual console */
372 log_warning("Failed to open /dev/tty0: %m");
374 /* Enable that we get SIGWINCH on kbrequest */
375 if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0)
376 log_warning("Failed to enable kbrequest handling: %m");
382 static int manager_setup_signals(Manager *m) {
383 struct sigaction sa = {
384 .sa_handler = SIG_DFL,
385 .sa_flags = SA_NOCLDSTOP|SA_RESTART,
392 assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
394 /* We make liberal use of realtime signals here. On
395 * Linux/glibc we have 30 of them (with the exception of Linux
396 * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30
399 assert_se(sigemptyset(&mask) == 0);
400 sigset_add_many(&mask,
401 SIGCHLD, /* Child died */
402 SIGTERM, /* Reexecute daemon */
403 SIGHUP, /* Reload configuration */
404 SIGUSR1, /* systemd/upstart: reconnect to D-Bus */
405 SIGUSR2, /* systemd: dump status */
406 SIGINT, /* Kernel sends us this on control-alt-del */
407 SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */
408 SIGPWR, /* Some kernel drivers and upsd send us this on power failure */
410 SIGRTMIN+0, /* systemd: start default.target */
411 SIGRTMIN+1, /* systemd: isolate rescue.target */
412 SIGRTMIN+2, /* systemd: isolate emergency.target */
413 SIGRTMIN+3, /* systemd: start halt.target */
414 SIGRTMIN+4, /* systemd: start poweroff.target */
415 SIGRTMIN+5, /* systemd: start reboot.target */
416 SIGRTMIN+6, /* systemd: start kexec.target */
418 /* ... space for more special targets ... */
420 SIGRTMIN+13, /* systemd: Immediate halt */
421 SIGRTMIN+14, /* systemd: Immediate poweroff */
422 SIGRTMIN+15, /* systemd: Immediate reboot */
423 SIGRTMIN+16, /* systemd: Immediate kexec */
425 /* ... space for more immediate system state changes ... */
427 SIGRTMIN+20, /* systemd: enable status messages */
428 SIGRTMIN+21, /* systemd: disable status messages */
429 SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */
430 SIGRTMIN+23, /* systemd: set log level to LOG_INFO */
431 SIGRTMIN+24, /* systemd: Immediate exit (--user only) */
433 /* .. one free signal here ... */
435 #if !defined(__hppa64__) && !defined(__hppa__)
436 /* Apparently Linux on hppa has fewer RT
437 * signals (SIGRTMAX is SIGRTMIN+25 there),
438 * hence let's not try to make use of them
439 * here. Since these commands are accessible
440 * by different means and only really a safety
441 * net, the missing functionality on hppa
442 * shouldn't matter. */
444 SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */
445 SIGRTMIN+27, /* systemd: set log target to console */
446 SIGRTMIN+28, /* systemd: set log target to kmsg */
447 SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete)*/
449 /* ... one free signal here SIGRTMIN+30 ... */
452 assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
454 m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
455 if (m->signal_fd < 0)
458 r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m);
462 /* Process signals a bit earlier than the rest of things, but
463 * later than notify_fd processing, so that the notify
464 * processing can still figure out to which process/service a
465 * message belongs, before we reap the process. */
466 r = sd_event_source_set_priority(m->signal_event_source, -5);
470 if (m->running_as == SYSTEMD_SYSTEM)
471 return enable_special_signals(m);
476 static void manager_clean_environment(Manager *m) {
479 /* Let's remove some environment variables that we
480 * need ourselves to communicate with our clients */
493 static int manager_default_environment(Manager *m) {
496 if (m->running_as == SYSTEMD_SYSTEM) {
497 /* The system manager always starts with a clean
498 * environment for its children. It does not import
499 * the kernel or the parents exported variables.
501 * The initial passed environ is untouched to keep
502 * /proc/self/environ valid; it is used for tagging
503 * the init process inside containers. */
504 m->environment = strv_new("PATH=" DEFAULT_PATH,
507 /* Import locale variables LC_*= from configuration */
508 locale_setup(&m->environment);
510 /* The user manager passes its own environment
511 * along to its children. */
512 m->environment = strv_copy(environ);
518 manager_clean_environment(m);
519 strv_sort(m->environment);
524 int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) {
529 assert(running_as >= 0);
530 assert(running_as < _SYSTEMD_RUNNING_AS_MAX);
532 m = new0(Manager, 1);
537 if (running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0)
538 boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp);
541 m->running_as = running_as;
542 m->exit_code = _MANAGER_EXIT_CODE_INVALID;
543 m->default_timer_accuracy_usec = USEC_PER_MINUTE;
545 m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1;
547 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;
548 m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */
550 m->ask_password_inotify_fd = -1;
551 m->have_ask_password = -EINVAL; /* we don't know */
553 m->test_run = test_run;
555 r = manager_default_environment(m);
559 r = hashmap_ensure_allocated(&m->units, &string_hash_ops);
563 r = hashmap_ensure_allocated(&m->jobs, NULL);
567 r = hashmap_ensure_allocated(&m->cgroup_unit, &string_hash_ops);
571 r = hashmap_ensure_allocated(&m->watch_bus, &string_hash_ops);
575 r = set_ensure_allocated(&m->startup_units, NULL);
579 r = set_ensure_allocated(&m->failed_units, NULL);
583 r = sd_event_default(&m->event);
587 r = sd_event_add_defer(m->event, &m->run_queue_event_source, manager_dispatch_run_queue, m);
591 r = sd_event_source_set_priority(m->run_queue_event_source, SD_EVENT_PRIORITY_IDLE);
595 r = sd_event_source_set_enabled(m->run_queue_event_source, SD_EVENT_OFF);
599 r = manager_setup_signals(m);
603 r = manager_setup_cgroup(m);
607 r = manager_setup_time_change(m);
611 m->udev = udev_new();
617 /* Note that we set up neither kdbus, nor the notify fd
618 * here. We do that after deserialization, since they might
619 * have gotten serialized across the reexec. */
621 m->taint_usr = dir_is_empty("/usr") > 0;
631 static int manager_setup_notify(Manager *m) {
637 if (m->notify_fd < 0) {
638 _cleanup_close_ int fd = -1;
639 union sockaddr_union sa = {
640 .sa.sa_family = AF_UNIX,
642 static const int one = 1;
644 /* First free all secondary fields */
645 free(m->notify_socket);
646 m->notify_socket = NULL;
647 m->notify_event_source = sd_event_source_unref(m->notify_event_source);
649 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
651 log_error("Failed to allocate notification socket: %m");
655 if (m->running_as == SYSTEMD_SYSTEM)
656 m->notify_socket = strdup("/run/systemd/notify");
660 e = getenv("XDG_RUNTIME_DIR");
662 log_error("XDG_RUNTIME_DIR is not set: %m");
666 m->notify_socket = strappend(e, "/systemd/notify");
668 if (!m->notify_socket)
671 (void) mkdir_parents_label(m->notify_socket, 0755);
672 (void) unlink(m->notify_socket);
674 strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1);
675 r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path));
677 log_error("bind(%s) failed: %m", sa.un.sun_path);
681 r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one));
683 log_error("SO_PASSCRED failed: %m");
690 log_debug("Using notification socket %s", m->notify_socket);
693 if (!m->notify_event_source) {
694 r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m);
696 log_error_errno(r, "Failed to allocate notify event source: %m");
700 /* Process signals a bit earlier than SIGCHLD, so that we can
701 * still identify to which service an exit message belongs */
702 r = sd_event_source_set_priority(m->notify_event_source, -7);
704 return log_error_errno(r, "Failed to set priority of notify event source: %m");
710 static int manager_setup_kdbus(Manager *m) {
712 _cleanup_free_ char *p = NULL;
716 if (m->test_run || m->kdbus_fd >= 0)
720 bus_kernel_fix_attach_mask();
722 m->kdbus_fd = bus_kernel_create_bus(
723 m->running_as == SYSTEMD_SYSTEM ? "system" : "user",
724 m->running_as == SYSTEMD_SYSTEM, &p);
727 return log_debug_errno(m->kdbus_fd, "Failed to set up kdbus: %m");
729 log_debug("Successfully set up kdbus on %s", p);
735 static int manager_connect_bus(Manager *m, bool reexecuting) {
736 bool try_bus_connect;
746 (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS"));
748 /* Try to connect to the busses, if possible. */
749 return bus_init(m, try_bus_connect);
752 static unsigned manager_dispatch_cleanup_queue(Manager *m) {
758 while ((u = m->cleanup_queue)) {
759 assert(u->in_cleanup_queue);
769 GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */
770 GC_OFFSET_UNSURE, /* No clue */
771 GC_OFFSET_GOOD, /* We still need this unit */
772 GC_OFFSET_BAD, /* We don't need this unit anymore */
776 static void unit_gc_sweep(Unit *u, unsigned gc_marker) {
783 if (u->gc_marker == gc_marker + GC_OFFSET_GOOD ||
784 u->gc_marker == gc_marker + GC_OFFSET_BAD ||
785 u->gc_marker == gc_marker + GC_OFFSET_IN_PATH)
788 if (u->in_cleanup_queue)
791 if (unit_check_gc(u))
794 u->gc_marker = gc_marker + GC_OFFSET_IN_PATH;
798 SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) {
799 unit_gc_sweep(other, gc_marker);
801 if (other->gc_marker == gc_marker + GC_OFFSET_GOOD)
804 if (other->gc_marker != gc_marker + GC_OFFSET_BAD)
811 /* We were unable to find anything out about this entry, so
812 * let's investigate it later */
813 u->gc_marker = gc_marker + GC_OFFSET_UNSURE;
814 unit_add_to_gc_queue(u);
818 /* We definitely know that this one is not useful anymore, so
819 * let's mark it for deletion */
820 u->gc_marker = gc_marker + GC_OFFSET_BAD;
821 unit_add_to_cleanup_queue(u);
825 u->gc_marker = gc_marker + GC_OFFSET_GOOD;
828 static unsigned manager_dispatch_gc_queue(Manager *m) {
835 /* log_debug("Running GC..."); */
837 m->gc_marker += _GC_OFFSET_MAX;
838 if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX)
841 gc_marker = m->gc_marker;
843 while ((u = m->gc_queue)) {
844 assert(u->in_gc_queue);
846 unit_gc_sweep(u, gc_marker);
848 LIST_REMOVE(gc_queue, m->gc_queue, u);
849 u->in_gc_queue = false;
853 if (u->gc_marker == gc_marker + GC_OFFSET_BAD ||
854 u->gc_marker == gc_marker + GC_OFFSET_UNSURE) {
855 log_unit_debug(u->id, "Collecting %s", u->id);
856 u->gc_marker = gc_marker + GC_OFFSET_BAD;
857 unit_add_to_cleanup_queue(u);
861 m->n_in_gc_queue = 0;
866 static void manager_clear_jobs_and_units(Manager *m) {
871 while ((u = hashmap_first(m->units)))
874 manager_dispatch_cleanup_queue(m);
876 assert(!m->load_queue);
877 assert(!m->run_queue);
878 assert(!m->dbus_unit_queue);
879 assert(!m->dbus_job_queue);
880 assert(!m->cleanup_queue);
881 assert(!m->gc_queue);
883 assert(hashmap_isempty(m->jobs));
884 assert(hashmap_isempty(m->units));
887 m->n_running_jobs = 0;
890 Manager* manager_free(Manager *m) {
897 manager_clear_jobs_and_units(m);
899 for (c = 0; c < _UNIT_TYPE_MAX; c++)
900 if (unit_vtable[c]->shutdown)
901 unit_vtable[c]->shutdown(m);
903 /* If we reexecute ourselves, we keep the root cgroup
905 manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE);
907 manager_undo_generators(m);
911 hashmap_free(m->units);
912 hashmap_free(m->jobs);
913 hashmap_free(m->watch_pids1);
914 hashmap_free(m->watch_pids2);
915 hashmap_free(m->watch_bus);
917 set_free(m->startup_units);
918 set_free(m->failed_units);
920 sd_event_source_unref(m->signal_event_source);
921 sd_event_source_unref(m->notify_event_source);
922 sd_event_source_unref(m->time_change_event_source);
923 sd_event_source_unref(m->jobs_in_progress_event_source);
924 sd_event_source_unref(m->idle_pipe_event_source);
925 sd_event_source_unref(m->run_queue_event_source);
927 safe_close(m->signal_fd);
928 safe_close(m->notify_fd);
929 safe_close(m->time_change_fd);
930 safe_close(m->kdbus_fd);
932 manager_close_ask_password(m);
934 manager_close_idle_pipe(m);
937 sd_event_unref(m->event);
939 free(m->notify_socket);
941 lookup_paths_free(&m->lookup_paths);
942 strv_free(m->environment);
944 hashmap_free(m->cgroup_unit);
945 set_free_free(m->unit_path_cache);
947 free(m->switch_root);
948 free(m->switch_root_init);
950 for (i = 0; i < _RLIMIT_MAX; i++)
953 assert(hashmap_isempty(m->units_requiring_mounts_for));
954 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_errno(r, "Failed to build unit path cache: %m");
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_unit_debug(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_unit_debug(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_unit_debug(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_unit_debug(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_unit_debug(name, "Activating special unit %s", name);
1640 r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL);
1642 log_unit_error(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 LOG_MESSAGE_ID(SD_MESSAGE_TIME_CHANGE),
1878 LOG_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 return log_error_errno(r, "Failed to run event loop: %m");
1987 return m->exit_code;
1990 int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) {
1991 _cleanup_free_ char *n = NULL;
1999 r = unit_name_from_dbus_path(s, &n);
2003 r = manager_load_unit(m, n, NULL, e, &u);
2012 int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) {
2022 p = startswith(s, "/org/freedesktop/systemd1/job/");
2026 r = safe_atou(p, &id);
2030 j = manager_get_job(m, id);
2039 void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
2042 _cleanup_free_ char *p = NULL;
2046 audit_fd = get_audit_fd();
2050 /* Don't generate audit events if the service was already
2051 * started and we're just deserializing */
2052 if (m->n_reloading > 0)
2055 if (m->running_as != SYSTEMD_SYSTEM)
2058 if (u->type != UNIT_SERVICE)
2061 p = unit_name_to_prefix_and_instance(u->id);
2067 msg = strappenda("unit=", p);
2069 if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) {
2071 /* We aren't allowed to send audit messages?
2072 * Then let's not retry again. */
2075 log_warning("Failed to send audit message: %m");
2081 void manager_send_unit_plymouth(Manager *m, Unit *u) {
2082 union sockaddr_union sa = PLYMOUTH_SOCKET;
2085 _cleanup_free_ char *message = NULL;
2086 _cleanup_close_ int fd = -1;
2088 /* Don't generate plymouth events if the service was already
2089 * started and we're just deserializing */
2090 if (m->n_reloading > 0)
2093 if (m->running_as != SYSTEMD_SYSTEM)
2096 if (detect_container(NULL) > 0)
2099 if (u->type != UNIT_SERVICE &&
2100 u->type != UNIT_MOUNT &&
2101 u->type != UNIT_SWAP)
2104 /* We set SOCK_NONBLOCK here so that we rather drop the
2105 * message then wait for plymouth */
2106 fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
2108 log_error("socket() failed: %m");
2112 if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
2114 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2115 log_error("connect() failed: %m");
2119 if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) {
2125 if (write(fd, message, n + 1) != n + 1)
2126 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2127 log_error("Failed to write Plymouth message: %m");
2130 void manager_dispatch_bus_name_owner_changed(
2133 const char* old_owner,
2134 const char *new_owner) {
2141 u = hashmap_get(m->watch_bus, name);
2145 UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner);
2148 int manager_open_serialization(Manager *m, FILE **_f) {
2155 path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp";
2156 fd = open_tmpfile(path, O_RDWR|O_CLOEXEC);
2160 log_debug("Serializing state to %s", path);
2162 f = fdopen(fd, "w+");
2173 int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) {
2186 fprintf(f, "current-job-id=%i\n", m->current_job_id);
2187 fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr));
2188 fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs);
2189 fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs);
2191 dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp);
2192 dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp);
2193 dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp);
2194 dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp);
2197 dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp);
2198 dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp);
2199 dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp);
2200 dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp);
2201 dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp);
2202 dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp);
2203 dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp);
2204 dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp);
2207 if (!switching_root) {
2208 STRV_FOREACH(e, m->environment) {
2209 _cleanup_free_ char *ce;
2215 fprintf(f, "env=%s\n", *e);
2219 if (m->notify_fd >= 0) {
2222 copy = fdset_put_dup(fds, m->notify_fd);
2226 fprintf(f, "notify-fd=%i\n", copy);
2227 fprintf(f, "notify-socket=%s\n", m->notify_socket);
2230 if (m->kdbus_fd >= 0) {
2233 copy = fdset_put_dup(fds, m->kdbus_fd);
2237 fprintf(f, "kdbus-fd=%i\n", copy);
2240 bus_track_serialize(m->subscribed, f);
2244 HASHMAP_FOREACH_KEY(u, t, m->units, i) {
2252 r = unit_serialize(u, f, fds, !switching_root);
2259 assert(m->n_reloading > 0);
2265 r = bus_fdset_add_all(m, fds);
2272 int manager_deserialize(Manager *m, FILE *f, FDSet *fds) {
2278 log_debug("Deserializing state...");
2283 char line[LINE_MAX], *l;
2285 if (!fgets(line, sizeof(line), f)) {
2300 if (startswith(l, "current-job-id=")) {
2303 if (safe_atou32(l+15, &id) < 0)
2304 log_warning("Failed to parse current job id value %s", l+15);
2306 m->current_job_id = MAX(m->current_job_id, id);
2308 } else if (startswith(l, "n-installed-jobs=")) {
2311 if (safe_atou32(l+17, &n) < 0)
2312 log_warning("Failed to parse installed jobs counter %s", l+17);
2314 m->n_installed_jobs += n;
2316 } else if (startswith(l, "n-failed-jobs=")) {
2319 if (safe_atou32(l+14, &n) < 0)
2320 log_warning("Failed to parse failed jobs counter %s", l+14);
2322 m->n_failed_jobs += n;
2324 } else if (startswith(l, "taint-usr=")) {
2327 b = parse_boolean(l+10);
2329 log_warning("Failed to parse taint /usr flag %s", l+10);
2331 m->taint_usr = m->taint_usr || b;
2333 } else if (startswith(l, "firmware-timestamp="))
2334 dual_timestamp_deserialize(l+19, &m->firmware_timestamp);
2335 else if (startswith(l, "loader-timestamp="))
2336 dual_timestamp_deserialize(l+17, &m->loader_timestamp);
2337 else if (startswith(l, "kernel-timestamp="))
2338 dual_timestamp_deserialize(l+17, &m->kernel_timestamp);
2339 else if (startswith(l, "initrd-timestamp="))
2340 dual_timestamp_deserialize(l+17, &m->initrd_timestamp);
2341 else if (startswith(l, "userspace-timestamp="))
2342 dual_timestamp_deserialize(l+20, &m->userspace_timestamp);
2343 else if (startswith(l, "finish-timestamp="))
2344 dual_timestamp_deserialize(l+17, &m->finish_timestamp);
2345 else if (startswith(l, "security-start-timestamp="))
2346 dual_timestamp_deserialize(l+25, &m->security_start_timestamp);
2347 else if (startswith(l, "security-finish-timestamp="))
2348 dual_timestamp_deserialize(l+26, &m->security_finish_timestamp);
2349 else if (startswith(l, "generators-start-timestamp="))
2350 dual_timestamp_deserialize(l+27, &m->generators_start_timestamp);
2351 else if (startswith(l, "generators-finish-timestamp="))
2352 dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp);
2353 else if (startswith(l, "units-load-start-timestamp="))
2354 dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp);
2355 else if (startswith(l, "units-load-finish-timestamp="))
2356 dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp);
2357 else if (startswith(l, "env=")) {
2358 _cleanup_free_ char *uce = NULL;
2361 uce = cunescape(l+4);
2367 e = strv_env_set(m->environment, uce);
2373 strv_free(m->environment);
2376 } else if (startswith(l, "notify-fd=")) {
2379 if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2380 log_warning("Failed to parse notify fd: %s", l + 10);
2382 m->notify_event_source = sd_event_source_unref(m->notify_event_source);
2383 safe_close(m->notify_fd);
2384 m->notify_fd = fdset_remove(fds, fd);
2387 } else if (startswith(l, "notify-socket=")) {
2396 free(m->notify_socket);
2397 m->notify_socket = n;
2399 } else if (startswith(l, "kdbus-fd=")) {
2402 if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2403 log_warning("Failed to parse kdbus fd: %s", l + 9);
2405 safe_close(m->kdbus_fd);
2406 m->kdbus_fd = fdset_remove(fds, fd);
2409 } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) < 0)
2410 log_warning("Unknown serialization item '%s'", l);
2415 char name[UNIT_NAME_MAX+2];
2418 if (!fgets(name, sizeof(name), f)) {
2429 r = manager_load_unit(m, strstrip(name), NULL, NULL, &u);
2433 r = unit_deserialize(u, f, fds);
2442 assert(m->n_reloading > 0);
2448 int manager_reload(Manager *m) {
2450 _cleanup_fclose_ FILE *f = NULL;
2451 _cleanup_fdset_free_ FDSet *fds = NULL;
2455 r = manager_open_serialization(m, &f);
2460 bus_manager_send_reloading(m, true);
2468 r = manager_serialize(m, f, fds, false);
2474 if (fseeko(f, 0, SEEK_SET) < 0) {
2479 /* From here on there is no way back. */
2480 manager_clear_jobs_and_units(m);
2481 manager_undo_generators(m);
2482 lookup_paths_free(&m->lookup_paths);
2484 /* Find new unit paths */
2485 manager_run_generators(m);
2487 q = lookup_paths_init(
2488 &m->lookup_paths, m->running_as, true,
2490 m->generator_unit_path,
2491 m->generator_unit_path_early,
2492 m->generator_unit_path_late);
2496 manager_build_unit_path_cache(m);
2498 /* First, enumerate what we can from all config files */
2499 q = manager_enumerate(m);
2503 /* Second, deserialize our stored data */
2504 q = manager_deserialize(m, f, fds);
2511 /* Re-register notify_fd as event source */
2512 q = manager_setup_notify(m);
2516 /* Third, fire things up! */
2517 q = manager_coldplug(m);
2521 assert(m->n_reloading > 0);
2524 m->send_reloading_done = true;
2529 bool manager_is_reloading_or_reexecuting(Manager *m) {
2532 return m->n_reloading != 0;
2535 void manager_reset_failed(Manager *m) {
2541 HASHMAP_FOREACH(u, m->units, i)
2542 unit_reset_failed(u);
2545 bool manager_unit_inactive_or_pending(Manager *m, const char *name) {
2551 /* Returns true if the unit is inactive or going down */
2552 u = manager_get_unit(m, name);
2556 return unit_inactive_or_pending(u);
2559 static void manager_notify_finished(Manager *m) {
2560 char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
2561 usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec;
2566 if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) {
2568 /* Note that m->kernel_usec.monotonic is always at 0,
2569 * and m->firmware_usec.monotonic and
2570 * m->loader_usec.monotonic should be considered
2571 * negative values. */
2573 firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic;
2574 loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic;
2575 userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2576 total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic;
2578 if (dual_timestamp_is_set(&m->initrd_timestamp)) {
2580 kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic;
2581 initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic;
2583 log_struct(LOG_INFO,
2584 LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2585 "KERNEL_USEC="USEC_FMT, kernel_usec,
2586 "INITRD_USEC="USEC_FMT, initrd_usec,
2587 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2588 LOG_MESSAGE("Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
2589 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2590 format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC),
2591 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2592 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
2595 kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic;
2598 log_struct(LOG_INFO,
2599 LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2600 "KERNEL_USEC="USEC_FMT, kernel_usec,
2601 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2602 LOG_MESSAGE("Startup finished in %s (kernel) + %s (userspace) = %s.",
2603 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2604 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2605 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
2609 firmware_usec = loader_usec = initrd_usec = kernel_usec = 0;
2610 total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2612 log_struct(LOG_INFO,
2613 LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2614 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2615 LOG_MESSAGE("Startup finished in %s.",
2616 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
2620 bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec);
2624 "STATUS=Startup finished in %s.",
2625 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC));
2628 void manager_check_finished(Manager *m) {
2634 if (m->n_running_jobs == 0)
2635 m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source);
2637 if (hashmap_size(m->jobs) > 0) {
2639 if (m->jobs_in_progress_event_source)
2640 sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC);
2645 manager_flip_auto_status(m, false);
2647 /* Notify Type=idle units that we are done now */
2648 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
2649 manager_close_idle_pipe(m);
2651 /* Turn off confirm spawn now */
2652 m->confirm_spawn = false;
2654 /* No need to update ask password status when we're going non-interactive */
2655 manager_close_ask_password(m);
2657 /* This is no longer the first boot */
2658 manager_set_first_boot(m, false);
2660 if (dual_timestamp_is_set(&m->finish_timestamp))
2663 dual_timestamp_get(&m->finish_timestamp);
2665 manager_notify_finished(m);
2667 SET_FOREACH(u, m->startup_units, i)
2669 cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m));
2672 static int create_generator_dir(Manager *m, char **generator, const char *name) {
2683 if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) {
2684 /* systemd --system, not running --test */
2686 p = strappend("/run/systemd/", name);
2690 r = mkdir_p_label(p, 0755);
2692 log_error_errno(r, "Failed to create generator directory %s: %m", p);
2696 } else if (m->running_as == SYSTEMD_USER) {
2697 const char *s = NULL;
2699 s = getenv("XDG_RUNTIME_DIR");
2702 p = strjoin(s, "/systemd/", name, NULL);
2706 r = mkdir_p_label(p, 0755);
2708 log_error_errno(r, "Failed to create generator directory %s: %m", p);
2713 /* systemd --system --test */
2715 p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL);
2720 log_error("Failed to create generator directory %s: %m",
2731 static void trim_generator_dir(Manager *m, char **generator) {
2738 if (rmdir(*generator) >= 0) {
2746 void manager_run_generators(Manager *m) {
2747 _cleanup_closedir_ DIR *d = NULL;
2748 const char *generator_path;
2749 const char *argv[5];
2757 generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH;
2758 d = opendir(generator_path);
2760 if (errno == ENOENT)
2763 log_error("Failed to enumerate generator directory %s: %m",
2768 r = create_generator_dir(m, &m->generator_unit_path, "generator");
2772 r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early");
2776 r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late");
2780 argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */
2781 argv[1] = m->generator_unit_path;
2782 argv[2] = m->generator_unit_path_early;
2783 argv[3] = m->generator_unit_path_late;
2786 RUN_WITH_UMASK(0022)
2787 execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv);
2790 trim_generator_dir(m, &m->generator_unit_path);
2791 trim_generator_dir(m, &m->generator_unit_path_early);
2792 trim_generator_dir(m, &m->generator_unit_path_late);
2795 static void remove_generator_dir(Manager *m, char **generator) {
2802 strv_remove(m->lookup_paths.unit_path, *generator);
2803 rm_rf(*generator, false, true, false);
2809 void manager_undo_generators(Manager *m) {
2812 remove_generator_dir(m, &m->generator_unit_path);
2813 remove_generator_dir(m, &m->generator_unit_path_early);
2814 remove_generator_dir(m, &m->generator_unit_path_late);
2817 int manager_environment_add(Manager *m, char **minus, char **plus) {
2818 char **a = NULL, **b = NULL, **l;
2823 if (!strv_isempty(minus)) {
2824 a = strv_env_delete(l, 1, minus);
2831 if (!strv_isempty(plus)) {
2832 b = strv_env_merge(2, l, plus);
2841 if (m->environment != l)
2842 strv_free(m->environment);
2849 manager_clean_environment(m);
2850 strv_sort(m->environment);
2855 int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) {
2860 for (i = 0; i < _RLIMIT_MAX; i++) {
2861 if (!default_rlimit[i])
2864 m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1);
2872 void manager_recheck_journal(Manager *m) {
2877 if (m->running_as != SYSTEMD_SYSTEM)
2880 u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET);
2881 if (u && SOCKET(u)->state != SOCKET_RUNNING) {
2882 log_close_journal();
2886 u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE);
2887 if (u && SERVICE(u)->state != SERVICE_RUNNING) {
2888 log_close_journal();
2892 /* Hmm, OK, so the socket is fully up and the service is up
2893 * too, then let's make use of the thing. */
2897 void manager_set_show_status(Manager *m, ShowStatus mode) {
2899 assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY));
2901 if (m->running_as != SYSTEMD_SYSTEM)
2904 m->show_status = mode;
2907 touch("/run/systemd/show-status");
2909 unlink("/run/systemd/show-status");
2912 static bool manager_get_show_status(Manager *m, StatusType type) {
2915 if (m->running_as != SYSTEMD_SYSTEM)
2918 if (m->no_console_output)
2921 if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING))
2924 /* If we cannot find out the status properly, just proceed. */
2925 if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0)
2928 if (m->show_status > 0)
2931 /* If Plymouth is running make sure we show the status, so
2932 * that there's something nice to see when people press Esc */
2933 return plymouth_running();
2936 void manager_set_first_boot(Manager *m, bool b) {
2939 if (m->running_as != SYSTEMD_SYSTEM)
2945 touch("/run/systemd/first-boot");
2947 unlink("/run/systemd/first-boot");
2950 void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) {
2953 /* If m is NULL, assume we're after shutdown and let the messages through. */
2955 if (m && !manager_get_show_status(m, type))
2958 /* XXX We should totally drop the check for ephemeral here
2959 * and thus effectively make 'Type=idle' pointless. */
2960 if (type == STATUS_TYPE_EPHEMERAL && m && m->n_on_console > 0)
2963 va_start(ap, format);
2964 status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap);
2968 int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) {
2969 _cleanup_free_ char *p = NULL;
2977 p = unit_name_from_path(path, suffix);
2981 found = manager_get_unit(m, p);
2991 Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) {
2992 char p[strlen(path)+1];
2998 path_kill_slashes(p);
3000 return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p);
3003 const char *manager_get_runtime_prefix(Manager *m) {
3006 return m->running_as == SYSTEMD_SYSTEM ?
3008 getenv("XDG_RUNTIME_DIR");
3011 ManagerState manager_state(Manager *m) {
3016 /* Did we ever finish booting? If not then we are still starting up */
3017 if (!dual_timestamp_is_set(&m->finish_timestamp)) {
3019 u = manager_get_unit(m, SPECIAL_BASIC_TARGET);
3020 if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u)))
3021 return MANAGER_INITIALIZING;
3023 return MANAGER_STARTING;
3026 /* Is the special shutdown target queued? If so, we are in shutdown state */
3027 u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET);
3028 if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))
3029 return MANAGER_STOPPING;
3031 /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */
3032 u = manager_get_unit(m, SPECIAL_RESCUE_TARGET);
3033 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3034 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3035 return MANAGER_MAINTENANCE;
3037 u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET);
3038 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3039 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3040 return MANAGER_MAINTENANCE;
3042 /* Are there any failed units? If so, we are in degraded mode */
3043 if (set_size(m->failed_units) > 0)
3044 return MANAGER_DEGRADED;
3046 return MANAGER_RUNNING;
3049 static const char *const manager_state_table[_MANAGER_STATE_MAX] = {
3050 [MANAGER_INITIALIZING] = "initializing",
3051 [MANAGER_STARTING] = "starting",
3052 [MANAGER_RUNNING] = "running",
3053 [MANAGER_DEGRADED] = "degraded",
3054 [MANAGER_MAINTENANCE] = "maintenance",
3055 [MANAGER_STOPPING] = "stopping",
3058 DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState);