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_errno(-r, "Failed to watch idle pipe: %m");
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_errno(-r, "Failed to create time change event source: %m");
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_errno(-r, "Failed to allocate notify event source: %m");
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_errno(-r, "Failed to set priority of notify event source: %m");
716 static int manager_setup_kdbus(Manager *m) {
718 _cleanup_free_ char *p = NULL;
722 if (m->test_run || m->kdbus_fd >= 0)
726 bus_kernel_fix_attach_mask();
728 m->kdbus_fd = bus_kernel_create_bus(
729 m->running_as == SYSTEMD_SYSTEM ? "system" : "user",
730 m->running_as == SYSTEMD_SYSTEM, &p);
732 if (m->kdbus_fd < 0) {
733 log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd));
737 log_debug("Successfully set up kdbus on %s", p);
743 static int manager_connect_bus(Manager *m, bool reexecuting) {
744 bool try_bus_connect;
754 (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS"));
756 /* Try to connect to the busses, if possible. */
757 return bus_init(m, try_bus_connect);
760 static unsigned manager_dispatch_cleanup_queue(Manager *m) {
766 while ((u = m->cleanup_queue)) {
767 assert(u->in_cleanup_queue);
777 GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */
778 GC_OFFSET_UNSURE, /* No clue */
779 GC_OFFSET_GOOD, /* We still need this unit */
780 GC_OFFSET_BAD, /* We don't need this unit anymore */
784 static void unit_gc_sweep(Unit *u, unsigned gc_marker) {
791 if (u->gc_marker == gc_marker + GC_OFFSET_GOOD ||
792 u->gc_marker == gc_marker + GC_OFFSET_BAD ||
793 u->gc_marker == gc_marker + GC_OFFSET_IN_PATH)
796 if (u->in_cleanup_queue)
799 if (unit_check_gc(u))
802 u->gc_marker = gc_marker + GC_OFFSET_IN_PATH;
806 SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) {
807 unit_gc_sweep(other, gc_marker);
809 if (other->gc_marker == gc_marker + GC_OFFSET_GOOD)
812 if (other->gc_marker != gc_marker + GC_OFFSET_BAD)
819 /* We were unable to find anything out about this entry, so
820 * let's investigate it later */
821 u->gc_marker = gc_marker + GC_OFFSET_UNSURE;
822 unit_add_to_gc_queue(u);
826 /* We definitely know that this one is not useful anymore, so
827 * let's mark it for deletion */
828 u->gc_marker = gc_marker + GC_OFFSET_BAD;
829 unit_add_to_cleanup_queue(u);
833 u->gc_marker = gc_marker + GC_OFFSET_GOOD;
836 static unsigned manager_dispatch_gc_queue(Manager *m) {
843 /* log_debug("Running GC..."); */
845 m->gc_marker += _GC_OFFSET_MAX;
846 if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX)
849 gc_marker = m->gc_marker;
851 while ((u = m->gc_queue)) {
852 assert(u->in_gc_queue);
854 unit_gc_sweep(u, gc_marker);
856 LIST_REMOVE(gc_queue, m->gc_queue, u);
857 u->in_gc_queue = false;
861 if (u->gc_marker == gc_marker + GC_OFFSET_BAD ||
862 u->gc_marker == gc_marker + GC_OFFSET_UNSURE) {
863 log_unit_debug(u->id, "Collecting %s", u->id);
864 u->gc_marker = gc_marker + GC_OFFSET_BAD;
865 unit_add_to_cleanup_queue(u);
869 m->n_in_gc_queue = 0;
874 static void manager_clear_jobs_and_units(Manager *m) {
879 while ((u = hashmap_first(m->units)))
882 manager_dispatch_cleanup_queue(m);
884 assert(!m->load_queue);
885 assert(!m->run_queue);
886 assert(!m->dbus_unit_queue);
887 assert(!m->dbus_job_queue);
888 assert(!m->cleanup_queue);
889 assert(!m->gc_queue);
891 assert(hashmap_isempty(m->jobs));
892 assert(hashmap_isempty(m->units));
895 m->n_running_jobs = 0;
898 Manager* manager_free(Manager *m) {
905 manager_clear_jobs_and_units(m);
907 for (c = 0; c < _UNIT_TYPE_MAX; c++)
908 if (unit_vtable[c]->shutdown)
909 unit_vtable[c]->shutdown(m);
911 /* If we reexecute ourselves, we keep the root cgroup
913 manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE);
915 manager_undo_generators(m);
919 hashmap_free(m->units);
920 hashmap_free(m->jobs);
921 hashmap_free(m->watch_pids1);
922 hashmap_free(m->watch_pids2);
923 hashmap_free(m->watch_bus);
925 set_free(m->startup_units);
926 set_free(m->failed_units);
928 sd_event_source_unref(m->signal_event_source);
929 sd_event_source_unref(m->notify_event_source);
930 sd_event_source_unref(m->time_change_event_source);
931 sd_event_source_unref(m->jobs_in_progress_event_source);
932 sd_event_source_unref(m->idle_pipe_event_source);
933 sd_event_source_unref(m->run_queue_event_source);
935 safe_close(m->signal_fd);
936 safe_close(m->notify_fd);
937 safe_close(m->time_change_fd);
938 safe_close(m->kdbus_fd);
940 manager_close_ask_password(m);
942 manager_close_idle_pipe(m);
945 sd_event_unref(m->event);
947 free(m->notify_socket);
949 lookup_paths_free(&m->lookup_paths);
950 strv_free(m->environment);
952 hashmap_free(m->cgroup_unit);
953 set_free_free(m->unit_path_cache);
955 free(m->switch_root);
956 free(m->switch_root_init);
958 for (i = 0; i < _RLIMIT_MAX; i++)
961 assert(hashmap_isempty(m->units_requiring_mounts_for));
962 hashmap_free(m->units_requiring_mounts_for);
968 int manager_enumerate(Manager *m) {
974 /* Let's ask every type to load all units from disk/kernel
975 * that it might know */
976 for (c = 0; c < _UNIT_TYPE_MAX; c++)
977 if (unit_vtable[c]->enumerate) {
978 q = unit_vtable[c]->enumerate(m);
983 manager_dispatch_load_queue(m);
987 static int manager_coldplug(Manager *m) {
995 /* Then, let's set up their initial state. */
996 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
1003 q = unit_coldplug(u);
1011 static void manager_build_unit_path_cache(Manager *m) {
1013 _cleanup_closedir_ DIR *d = NULL;
1018 set_free_free(m->unit_path_cache);
1020 m->unit_path_cache = set_new(&string_hash_ops);
1021 if (!m->unit_path_cache) {
1022 log_error("Failed to allocate unit path cache.");
1026 /* This simply builds a list of files we know exist, so that
1027 * we don't always have to go to disk */
1029 STRV_FOREACH(i, m->lookup_paths.unit_path) {
1034 if (errno != ENOENT)
1035 log_error("Failed to open directory %s: %m", *i);
1039 while ((de = readdir(d))) {
1042 if (ignore_file(de->d_name))
1045 p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL);
1051 r = set_consume(m->unit_path_cache, p);
1063 log_error_errno(-r, "Failed to build unit path cache: %m");
1065 set_free_free(m->unit_path_cache);
1066 m->unit_path_cache = NULL;
1070 static int manager_distribute_fds(Manager *m, FDSet *fds) {
1077 HASHMAP_FOREACH(u, m->units, i) {
1079 if (fdset_size(fds) <= 0)
1082 if (UNIT_VTABLE(u)->distribute_fds) {
1083 r = UNIT_VTABLE(u)->distribute_fds(u, fds);
1092 int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
1097 dual_timestamp_get(&m->generators_start_timestamp);
1098 manager_run_generators(m);
1099 dual_timestamp_get(&m->generators_finish_timestamp);
1101 r = lookup_paths_init(
1102 &m->lookup_paths, m->running_as, true,
1104 m->generator_unit_path,
1105 m->generator_unit_path_early,
1106 m->generator_unit_path_late);
1110 manager_build_unit_path_cache(m);
1112 /* If we will deserialize make sure that during enumeration
1113 * this is already known, so we increase the counter here
1118 /* First, enumerate what we can from all config files */
1119 dual_timestamp_get(&m->units_load_start_timestamp);
1120 r = manager_enumerate(m);
1121 dual_timestamp_get(&m->units_load_finish_timestamp);
1123 /* Second, deserialize if there is something to deserialize */
1125 r = manager_deserialize(m, serialization, fds);
1127 /* Any fds left? Find some unit which wants them. This is
1128 * useful to allow container managers to pass some file
1129 * descriptors to us pre-initialized. This enables
1130 * socket-based activation of entire containers. */
1131 if (fdset_size(fds) > 0) {
1132 q = manager_distribute_fds(m, fds);
1133 if (q < 0 && r == 0)
1137 /* We might have deserialized the notify fd, but if we didn't
1138 * then let's create the bus now */
1139 q = manager_setup_notify(m);
1140 if (q < 0 && r == 0)
1143 /* We might have deserialized the kdbus control fd, but if we
1144 * didn't, then let's create the bus now. */
1145 manager_setup_kdbus(m);
1146 manager_connect_bus(m, !!serialization);
1147 bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed);
1149 /* Third, fire things up! */
1150 q = manager_coldplug(m);
1151 if (q < 0 && r == 0)
1154 if (serialization) {
1155 assert(m->n_reloading > 0);
1158 /* Let's wait for the UnitNew/JobNew messages being
1159 * sent, before we notify that the reload is
1161 m->send_reloading_done = true;
1167 int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) {
1172 assert(type < _JOB_TYPE_MAX);
1174 assert(mode < _JOB_MODE_MAX);
1176 if (mode == JOB_ISOLATE && type != JOB_START)
1177 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start.");
1179 if (mode == JOB_ISOLATE && !unit->allow_isolate)
1180 return sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated.");
1182 log_unit_debug(unit->id,
1183 "Trying to enqueue job %s/%s/%s", unit->id,
1184 job_type_to_string(type), job_mode_to_string(mode));
1186 job_type_collapse(&type, unit);
1188 tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY);
1192 r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false,
1193 mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS,
1194 mode == JOB_IGNORE_DEPENDENCIES, e);
1198 if (mode == JOB_ISOLATE) {
1199 r = transaction_add_isolate_jobs(tr, m);
1204 r = transaction_activate(tr, m, mode, e);
1208 log_unit_debug(unit->id,
1209 "Enqueued job %s/%s as %u", unit->id,
1210 job_type_to_string(type), (unsigned) tr->anchor_job->id);
1213 *_ret = tr->anchor_job;
1215 transaction_free(tr);
1219 transaction_abort(tr);
1220 transaction_free(tr);
1224 int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, sd_bus_error *e, Job **_ret) {
1229 assert(type < _JOB_TYPE_MAX);
1231 assert(mode < _JOB_MODE_MAX);
1233 r = manager_load_unit(m, name, NULL, NULL, &unit);
1237 return manager_add_job(m, type, unit, mode, override, e, _ret);
1240 Job *manager_get_job(Manager *m, uint32_t id) {
1243 return hashmap_get(m->jobs, UINT32_TO_PTR(id));
1246 Unit *manager_get_unit(Manager *m, const char *name) {
1250 return hashmap_get(m->units, name);
1253 unsigned manager_dispatch_load_queue(Manager *m) {
1259 /* Make sure we are not run recursively */
1260 if (m->dispatching_load_queue)
1263 m->dispatching_load_queue = true;
1265 /* Dispatches the load queue. Takes a unit from the queue and
1266 * tries to load its data until the queue is empty */
1268 while ((u = m->load_queue)) {
1269 assert(u->in_load_queue);
1275 m->dispatching_load_queue = false;
1279 int manager_load_unit_prepare(
1291 assert(name || path);
1293 /* This will prepare the unit for loading, but not actually
1294 * load anything from disk. */
1296 if (path && !is_path(path))
1297 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
1300 name = basename(path);
1302 t = unit_name_to_type(name);
1304 if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID))
1305 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name);
1307 ret = manager_get_unit(m, name);
1313 ret = unit_new(m, unit_vtable[t]->object_size);
1318 ret->fragment_path = strdup(path);
1319 if (!ret->fragment_path) {
1325 r = unit_add_name(ret, name);
1331 unit_add_to_load_queue(ret);
1332 unit_add_to_dbus_queue(ret);
1333 unit_add_to_gc_queue(ret);
1341 int manager_load_unit(
1352 /* This will load the service information files, but not actually
1353 * start any services or anything. */
1355 r = manager_load_unit_prepare(m, name, path, e, _ret);
1359 manager_dispatch_load_queue(m);
1362 *_ret = unit_follow_merge(*_ret);
1367 void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) {
1374 HASHMAP_FOREACH(j, s->jobs, i)
1375 job_dump(j, f, prefix);
1378 void manager_dump_units(Manager *s, FILE *f, const char *prefix) {
1386 HASHMAP_FOREACH_KEY(u, t, s->units, i)
1388 unit_dump(u, f, prefix);
1391 void manager_clear_jobs(Manager *m) {
1396 while ((j = hashmap_first(m->jobs)))
1397 /* No need to recurse. We're cancelling all jobs. */
1398 job_finish_and_invalidate(j, JOB_CANCELED, false);
1401 static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) {
1402 Manager *m = userdata;
1408 while ((j = m->run_queue)) {
1409 assert(j->installed);
1410 assert(j->in_run_queue);
1412 job_run_and_invalidate(j);
1415 if (m->n_running_jobs > 0)
1416 manager_watch_jobs_in_progress(m);
1418 if (m->n_on_console > 0)
1419 manager_watch_idle_pipe(m);
1424 static unsigned manager_dispatch_dbus_queue(Manager *m) {
1431 if (m->dispatching_dbus_queue)
1434 m->dispatching_dbus_queue = true;
1436 while ((u = m->dbus_unit_queue)) {
1437 assert(u->in_dbus_queue);
1439 bus_unit_send_change_signal(u);
1443 while ((j = m->dbus_job_queue)) {
1444 assert(j->in_dbus_queue);
1446 bus_job_send_change_signal(j);
1450 m->dispatching_dbus_queue = false;
1452 if (m->send_reloading_done) {
1453 m->send_reloading_done = false;
1455 bus_manager_send_reloading(m, false);
1458 if (m->queued_message)
1459 bus_send_queued_message(m);
1464 static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n) {
1465 _cleanup_strv_free_ char **tags = NULL;
1472 tags = strv_split(buf, "\n\r");
1478 log_unit_debug(u->id, "Got notification message for unit %s", u->id);
1480 if (UNIT_VTABLE(u)->notify_message)
1481 UNIT_VTABLE(u)->notify_message(u, pid, tags);
1484 static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1485 Manager *m = userdata;
1489 assert(m->notify_fd == fd);
1491 if (revents != EPOLLIN) {
1492 log_warning("Got unexpected poll event for notify fd.");
1498 struct iovec iovec = {
1500 .iov_len = sizeof(buf)-1,
1505 struct cmsghdr cmsghdr;
1506 uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
1509 struct msghdr msghdr = {
1512 .msg_control = &control,
1513 .msg_controllen = sizeof(control),
1515 struct ucred *ucred;
1518 n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT);
1523 if (errno == EAGAIN || errno == EINTR)
1529 if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||
1530 control.cmsghdr.cmsg_level != SOL_SOCKET ||
1531 control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||
1532 control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {
1533 log_warning("Received notify message without credentials. Ignoring.");
1537 ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
1539 assert((size_t) n < sizeof(buf));
1542 /* Notify every unit that might be interested, but try
1543 * to avoid notifying the same one multiple times. */
1544 u1 = manager_get_unit_by_pid(m, ucred->pid);
1546 manager_invoke_notify_message(m, u1, ucred->pid, buf, n);
1550 u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid));
1551 if (u2 && u2 != u1) {
1552 manager_invoke_notify_message(m, u2, ucred->pid, buf, n);
1556 u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid));
1557 if (u3 && u3 != u2 && u3 != u1) {
1558 manager_invoke_notify_message(m, u3, ucred->pid, buf, n);
1563 log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid);
1569 static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) {
1574 log_unit_debug(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id);
1576 unit_unwatch_pid(u, si->si_pid);
1577 UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status);
1580 static int manager_dispatch_sigchld(Manager *m) {
1586 /* First we call waitd() for a PID and do not reap the
1587 * zombie. That way we can still access /proc/$PID for
1588 * it while it is a zombie. */
1589 if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) {
1591 if (errno == ECHILD)
1603 if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) {
1604 _cleanup_free_ char *name = NULL;
1607 get_process_comm(si.si_pid, &name);
1609 log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)",
1610 si.si_pid, strna(name),
1611 sigchld_code_to_string(si.si_code),
1613 strna(si.si_code == CLD_EXITED
1614 ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL)
1615 : signal_to_string(si.si_status)));
1617 /* And now figure out the unit this belongs
1618 * to, it might be multiple... */
1619 u1 = manager_get_unit_by_pid(m, si.si_pid);
1621 invoke_sigchld_event(m, u1, &si);
1622 u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid));
1624 invoke_sigchld_event(m, u2, &si);
1625 u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid));
1626 if (u3 && u3 != u2 && u3 != u1)
1627 invoke_sigchld_event(m, u3, &si);
1630 /* And now, we actually reap the zombie. */
1631 if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) {
1642 static int manager_start_target(Manager *m, const char *name, JobMode mode) {
1643 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1646 log_unit_debug(name, "Activating special unit %s", name);
1648 r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL);
1650 log_unit_error(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r));
1655 static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1656 Manager *m = userdata;
1658 struct signalfd_siginfo sfsi;
1659 bool sigchld = false;
1662 assert(m->signal_fd == fd);
1664 if (revents != EPOLLIN) {
1665 log_warning("Got unexpected events from signal file descriptor.");
1670 n = read(m->signal_fd, &sfsi, sizeof(sfsi));
1671 if (n != sizeof(sfsi)) {
1676 if (errno == EINTR || errno == EAGAIN)
1682 log_received_signal(sfsi.ssi_signo == SIGCHLD ||
1683 (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER)
1684 ? LOG_DEBUG : LOG_INFO,
1687 switch (sfsi.ssi_signo) {
1694 if (m->running_as == SYSTEMD_SYSTEM) {
1695 /* This is for compatibility with the
1696 * original sysvinit */
1697 m->exit_code = MANAGER_REEXECUTE;
1704 if (m->running_as == SYSTEMD_SYSTEM) {
1705 manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
1709 /* Run the exit target if there is one, if not, just exit. */
1710 if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) {
1711 m->exit_code = MANAGER_EXIT;
1718 if (m->running_as == SYSTEMD_SYSTEM)
1719 manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE);
1721 /* This is a nop on non-init */
1725 if (m->running_as == SYSTEMD_SYSTEM)
1726 manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE);
1728 /* This is a nop on non-init */
1734 u = manager_get_unit(m, SPECIAL_DBUS_SERVICE);
1736 if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) {
1737 log_info("Trying to reconnect to bus...");
1741 if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) {
1742 log_info("Loading D-Bus service...");
1743 manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE);
1750 _cleanup_free_ char *dump = NULL;
1751 _cleanup_fclose_ FILE *f = NULL;
1754 f = open_memstream(&dump, &size);
1756 log_warning("Failed to allocate memory stream.");
1760 manager_dump_units(m, f, "\t");
1761 manager_dump_jobs(m, f, "\t");
1764 log_warning("Failed to write status stream");
1769 log_warning("Failed to flush status stream");
1773 log_dump(LOG_INFO, dump);
1778 m->exit_code = MANAGER_RELOAD;
1783 /* Starting SIGRTMIN+0 */
1784 static const char * const target_table[] = {
1785 [0] = SPECIAL_DEFAULT_TARGET,
1786 [1] = SPECIAL_RESCUE_TARGET,
1787 [2] = SPECIAL_EMERGENCY_TARGET,
1788 [3] = SPECIAL_HALT_TARGET,
1789 [4] = SPECIAL_POWEROFF_TARGET,
1790 [5] = SPECIAL_REBOOT_TARGET,
1791 [6] = SPECIAL_KEXEC_TARGET
1794 /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */
1795 static const ManagerExitCode code_table[] = {
1797 [1] = MANAGER_POWEROFF,
1798 [2] = MANAGER_REBOOT,
1802 if ((int) sfsi.ssi_signo >= SIGRTMIN+0 &&
1803 (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) {
1804 int idx = (int) sfsi.ssi_signo - SIGRTMIN;
1805 manager_start_target(m, target_table[idx],
1806 (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE);
1810 if ((int) sfsi.ssi_signo >= SIGRTMIN+13 &&
1811 (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) {
1812 m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13];
1816 switch (sfsi.ssi_signo - SIGRTMIN) {
1819 log_debug("Enabling showing of status.");
1820 manager_set_show_status(m, SHOW_STATUS_YES);
1824 log_debug("Disabling showing of status.");
1825 manager_set_show_status(m, SHOW_STATUS_NO);
1829 log_set_max_level(LOG_DEBUG);
1830 log_notice("Setting log level to debug.");
1834 log_set_max_level(LOG_INFO);
1835 log_notice("Setting log level to info.");
1839 if (m->running_as == SYSTEMD_USER) {
1840 m->exit_code = MANAGER_EXIT;
1844 /* This is a nop on init */
1848 case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */
1849 log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
1850 log_notice("Setting log target to journal-or-kmsg.");
1854 log_set_target(LOG_TARGET_CONSOLE);
1855 log_notice("Setting log target to console.");
1859 log_set_target(LOG_TARGET_KMSG);
1860 log_notice("Setting log target to kmsg.");
1864 log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo));
1871 manager_dispatch_sigchld(m);
1876 static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1877 Manager *m = userdata;
1882 assert(m->time_change_fd == fd);
1884 log_struct(LOG_INFO,
1885 LOG_MESSAGE_ID(SD_MESSAGE_TIME_CHANGE),
1886 LOG_MESSAGE("Time has been changed"),
1889 /* Restart the watch */
1890 m->time_change_event_source = sd_event_source_unref(m->time_change_event_source);
1891 m->time_change_fd = safe_close(m->time_change_fd);
1893 manager_setup_time_change(m);
1895 HASHMAP_FOREACH(u, m->units, i)
1896 if (UNIT_VTABLE(u)->time_change)
1897 UNIT_VTABLE(u)->time_change(u);
1902 static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1903 Manager *m = userdata;
1906 assert(m->idle_pipe[2] == fd);
1908 m->no_console_output = m->n_on_console > 0;
1910 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
1911 manager_close_idle_pipe(m);
1916 static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) {
1917 Manager *m = userdata;
1924 manager_print_jobs_in_progress(m);
1926 next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC;
1927 r = sd_event_source_set_time(source, next);
1931 return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT);
1934 int manager_loop(Manager *m) {
1937 RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000);
1940 m->exit_code = MANAGER_OK;
1942 /* Release the path cache */
1943 set_free_free(m->unit_path_cache);
1944 m->unit_path_cache = NULL;
1946 manager_check_finished(m);
1948 /* There might still be some zombies hanging around from
1949 * before we were exec()'ed. Let's reap them. */
1950 r = manager_dispatch_sigchld(m);
1954 while (m->exit_code == MANAGER_OK) {
1957 if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM)
1960 if (!ratelimit_test(&rl)) {
1961 /* Yay, something is going seriously wrong, pause a little */
1962 log_warning("Looping too fast. Throttling execution a little.");
1967 if (manager_dispatch_load_queue(m) > 0)
1970 if (manager_dispatch_gc_queue(m) > 0)
1973 if (manager_dispatch_cleanup_queue(m) > 0)
1976 if (manager_dispatch_cgroup_queue(m) > 0)
1979 if (manager_dispatch_dbus_queue(m) > 0)
1982 /* Sleep for half the watchdog time */
1983 if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) {
1984 wait_usec = m->runtime_watchdog / 2;
1988 wait_usec = USEC_INFINITY;
1990 r = sd_event_run(m->event, wait_usec);
1992 log_error_errno(-r, "Failed to run event loop: %m");
1997 return m->exit_code;
2000 int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) {
2001 _cleanup_free_ char *n = NULL;
2009 r = unit_name_from_dbus_path(s, &n);
2013 r = manager_load_unit(m, n, NULL, e, &u);
2022 int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) {
2032 p = startswith(s, "/org/freedesktop/systemd1/job/");
2036 r = safe_atou(p, &id);
2040 j = manager_get_job(m, id);
2049 void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
2052 _cleanup_free_ char *p = NULL;
2056 audit_fd = get_audit_fd();
2060 /* Don't generate audit events if the service was already
2061 * started and we're just deserializing */
2062 if (m->n_reloading > 0)
2065 if (m->running_as != SYSTEMD_SYSTEM)
2068 if (u->type != UNIT_SERVICE)
2071 p = unit_name_to_prefix_and_instance(u->id);
2077 msg = strappenda("unit=", p);
2079 if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) {
2081 /* We aren't allowed to send audit messages?
2082 * Then let's not retry again. */
2085 log_warning("Failed to send audit message: %m");
2091 void manager_send_unit_plymouth(Manager *m, Unit *u) {
2092 union sockaddr_union sa = PLYMOUTH_SOCKET;
2095 _cleanup_free_ char *message = NULL;
2096 _cleanup_close_ int fd = -1;
2098 /* Don't generate plymouth events if the service was already
2099 * started and we're just deserializing */
2100 if (m->n_reloading > 0)
2103 if (m->running_as != SYSTEMD_SYSTEM)
2106 if (detect_container(NULL) > 0)
2109 if (u->type != UNIT_SERVICE &&
2110 u->type != UNIT_MOUNT &&
2111 u->type != UNIT_SWAP)
2114 /* We set SOCK_NONBLOCK here so that we rather drop the
2115 * message then wait for plymouth */
2116 fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
2118 log_error("socket() failed: %m");
2122 if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
2124 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2125 log_error("connect() failed: %m");
2129 if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) {
2135 if (write(fd, message, n + 1) != n + 1)
2136 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2137 log_error("Failed to write Plymouth message: %m");
2140 void manager_dispatch_bus_name_owner_changed(
2143 const char* old_owner,
2144 const char *new_owner) {
2151 u = hashmap_get(m->watch_bus, name);
2155 UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner);
2158 int manager_open_serialization(Manager *m, FILE **_f) {
2165 path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp";
2166 fd = open_tmpfile(path, O_RDWR|O_CLOEXEC);
2170 log_debug("Serializing state to %s", path);
2172 f = fdopen(fd, "w+");
2183 int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) {
2196 fprintf(f, "current-job-id=%i\n", m->current_job_id);
2197 fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr));
2198 fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs);
2199 fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs);
2201 dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp);
2202 dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp);
2203 dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp);
2204 dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp);
2207 dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp);
2208 dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp);
2209 dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp);
2210 dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp);
2211 dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp);
2212 dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp);
2213 dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp);
2214 dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp);
2217 if (!switching_root) {
2218 STRV_FOREACH(e, m->environment) {
2219 _cleanup_free_ char *ce;
2225 fprintf(f, "env=%s\n", *e);
2229 if (m->notify_fd >= 0) {
2232 copy = fdset_put_dup(fds, m->notify_fd);
2236 fprintf(f, "notify-fd=%i\n", copy);
2237 fprintf(f, "notify-socket=%s\n", m->notify_socket);
2240 if (m->kdbus_fd >= 0) {
2243 copy = fdset_put_dup(fds, m->kdbus_fd);
2247 fprintf(f, "kdbus-fd=%i\n", copy);
2250 bus_track_serialize(m->subscribed, f);
2254 HASHMAP_FOREACH_KEY(u, t, m->units, i) {
2262 r = unit_serialize(u, f, fds, !switching_root);
2269 assert(m->n_reloading > 0);
2275 r = bus_fdset_add_all(m, fds);
2282 int manager_deserialize(Manager *m, FILE *f, FDSet *fds) {
2288 log_debug("Deserializing state...");
2293 char line[LINE_MAX], *l;
2295 if (!fgets(line, sizeof(line), f)) {
2310 if (startswith(l, "current-job-id=")) {
2313 if (safe_atou32(l+15, &id) < 0)
2314 log_warning("Failed to parse current job id value %s", l+15);
2316 m->current_job_id = MAX(m->current_job_id, id);
2318 } else if (startswith(l, "n-installed-jobs=")) {
2321 if (safe_atou32(l+17, &n) < 0)
2322 log_warning("Failed to parse installed jobs counter %s", l+17);
2324 m->n_installed_jobs += n;
2326 } else if (startswith(l, "n-failed-jobs=")) {
2329 if (safe_atou32(l+14, &n) < 0)
2330 log_warning("Failed to parse failed jobs counter %s", l+14);
2332 m->n_failed_jobs += n;
2334 } else if (startswith(l, "taint-usr=")) {
2337 b = parse_boolean(l+10);
2339 log_warning("Failed to parse taint /usr flag %s", l+10);
2341 m->taint_usr = m->taint_usr || b;
2343 } else if (startswith(l, "firmware-timestamp="))
2344 dual_timestamp_deserialize(l+19, &m->firmware_timestamp);
2345 else if (startswith(l, "loader-timestamp="))
2346 dual_timestamp_deserialize(l+17, &m->loader_timestamp);
2347 else if (startswith(l, "kernel-timestamp="))
2348 dual_timestamp_deserialize(l+17, &m->kernel_timestamp);
2349 else if (startswith(l, "initrd-timestamp="))
2350 dual_timestamp_deserialize(l+17, &m->initrd_timestamp);
2351 else if (startswith(l, "userspace-timestamp="))
2352 dual_timestamp_deserialize(l+20, &m->userspace_timestamp);
2353 else if (startswith(l, "finish-timestamp="))
2354 dual_timestamp_deserialize(l+17, &m->finish_timestamp);
2355 else if (startswith(l, "security-start-timestamp="))
2356 dual_timestamp_deserialize(l+25, &m->security_start_timestamp);
2357 else if (startswith(l, "security-finish-timestamp="))
2358 dual_timestamp_deserialize(l+26, &m->security_finish_timestamp);
2359 else if (startswith(l, "generators-start-timestamp="))
2360 dual_timestamp_deserialize(l+27, &m->generators_start_timestamp);
2361 else if (startswith(l, "generators-finish-timestamp="))
2362 dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp);
2363 else if (startswith(l, "units-load-start-timestamp="))
2364 dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp);
2365 else if (startswith(l, "units-load-finish-timestamp="))
2366 dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp);
2367 else if (startswith(l, "env=")) {
2368 _cleanup_free_ char *uce = NULL;
2371 uce = cunescape(l+4);
2377 e = strv_env_set(m->environment, uce);
2383 strv_free(m->environment);
2386 } else if (startswith(l, "notify-fd=")) {
2389 if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2390 log_warning("Failed to parse notify fd: %s", l + 10);
2392 m->notify_event_source = sd_event_source_unref(m->notify_event_source);
2393 safe_close(m->notify_fd);
2394 m->notify_fd = fdset_remove(fds, fd);
2397 } else if (startswith(l, "notify-socket=")) {
2406 free(m->notify_socket);
2407 m->notify_socket = n;
2409 } else if (startswith(l, "kdbus-fd=")) {
2412 if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2413 log_warning("Failed to parse kdbus fd: %s", l + 9);
2415 safe_close(m->kdbus_fd);
2416 m->kdbus_fd = fdset_remove(fds, fd);
2419 } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) < 0)
2420 log_warning("Unknown serialization item '%s'", l);
2425 char name[UNIT_NAME_MAX+2];
2428 if (!fgets(name, sizeof(name), f)) {
2439 r = manager_load_unit(m, strstrip(name), NULL, NULL, &u);
2443 r = unit_deserialize(u, f, fds);
2452 assert(m->n_reloading > 0);
2458 int manager_reload(Manager *m) {
2460 _cleanup_fclose_ FILE *f = NULL;
2461 _cleanup_fdset_free_ FDSet *fds = NULL;
2465 r = manager_open_serialization(m, &f);
2470 bus_manager_send_reloading(m, true);
2478 r = manager_serialize(m, f, fds, false);
2484 if (fseeko(f, 0, SEEK_SET) < 0) {
2489 /* From here on there is no way back. */
2490 manager_clear_jobs_and_units(m);
2491 manager_undo_generators(m);
2492 lookup_paths_free(&m->lookup_paths);
2494 /* Find new unit paths */
2495 manager_run_generators(m);
2497 q = lookup_paths_init(
2498 &m->lookup_paths, m->running_as, true,
2500 m->generator_unit_path,
2501 m->generator_unit_path_early,
2502 m->generator_unit_path_late);
2506 manager_build_unit_path_cache(m);
2508 /* First, enumerate what we can from all config files */
2509 q = manager_enumerate(m);
2513 /* Second, deserialize our stored data */
2514 q = manager_deserialize(m, f, fds);
2521 /* Re-register notify_fd as event source */
2522 q = manager_setup_notify(m);
2526 /* Third, fire things up! */
2527 q = manager_coldplug(m);
2531 assert(m->n_reloading > 0);
2534 m->send_reloading_done = true;
2539 bool manager_is_reloading_or_reexecuting(Manager *m) {
2542 return m->n_reloading != 0;
2545 void manager_reset_failed(Manager *m) {
2551 HASHMAP_FOREACH(u, m->units, i)
2552 unit_reset_failed(u);
2555 bool manager_unit_inactive_or_pending(Manager *m, const char *name) {
2561 /* Returns true if the unit is inactive or going down */
2562 u = manager_get_unit(m, name);
2566 return unit_inactive_or_pending(u);
2569 static void manager_notify_finished(Manager *m) {
2570 char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
2571 usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec;
2576 if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) {
2578 /* Note that m->kernel_usec.monotonic is always at 0,
2579 * and m->firmware_usec.monotonic and
2580 * m->loader_usec.monotonic should be considered
2581 * negative values. */
2583 firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic;
2584 loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic;
2585 userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2586 total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic;
2588 if (dual_timestamp_is_set(&m->initrd_timestamp)) {
2590 kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic;
2591 initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic;
2593 log_struct(LOG_INFO,
2594 LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2595 "KERNEL_USEC="USEC_FMT, kernel_usec,
2596 "INITRD_USEC="USEC_FMT, initrd_usec,
2597 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2598 LOG_MESSAGE("Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
2599 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2600 format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC),
2601 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2602 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
2605 kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic;
2608 log_struct(LOG_INFO,
2609 LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2610 "KERNEL_USEC="USEC_FMT, kernel_usec,
2611 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2612 LOG_MESSAGE("Startup finished in %s (kernel) + %s (userspace) = %s.",
2613 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2614 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2615 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
2619 firmware_usec = loader_usec = initrd_usec = kernel_usec = 0;
2620 total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2622 log_struct(LOG_INFO,
2623 LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2624 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2625 LOG_MESSAGE("Startup finished in %s.",
2626 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
2630 bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec);
2634 "STATUS=Startup finished in %s.",
2635 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC));
2638 void manager_check_finished(Manager *m) {
2644 if (m->n_running_jobs == 0)
2645 m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source);
2647 if (hashmap_size(m->jobs) > 0) {
2649 if (m->jobs_in_progress_event_source)
2650 sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC);
2655 manager_flip_auto_status(m, false);
2657 /* Notify Type=idle units that we are done now */
2658 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
2659 manager_close_idle_pipe(m);
2661 /* Turn off confirm spawn now */
2662 m->confirm_spawn = false;
2664 /* No need to update ask password status when we're going non-interactive */
2665 manager_close_ask_password(m);
2667 /* This is no longer the first boot */
2668 manager_set_first_boot(m, false);
2670 if (dual_timestamp_is_set(&m->finish_timestamp))
2673 dual_timestamp_get(&m->finish_timestamp);
2675 manager_notify_finished(m);
2677 SET_FOREACH(u, m->startup_units, i)
2679 cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m));
2682 static int create_generator_dir(Manager *m, char **generator, const char *name) {
2693 if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) {
2694 /* systemd --system, not running --test */
2696 p = strappend("/run/systemd/", name);
2700 r = mkdir_p_label(p, 0755);
2702 log_error("Failed to create generator directory %s: %s",
2707 } else if (m->running_as == SYSTEMD_USER) {
2708 const char *s = NULL;
2710 s = getenv("XDG_RUNTIME_DIR");
2713 p = strjoin(s, "/systemd/", name, NULL);
2717 r = mkdir_p_label(p, 0755);
2719 log_error("Failed to create generator directory %s: %s",
2725 /* systemd --system --test */
2727 p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL);
2732 log_error("Failed to create generator directory %s: %m",
2743 static void trim_generator_dir(Manager *m, char **generator) {
2750 if (rmdir(*generator) >= 0) {
2758 void manager_run_generators(Manager *m) {
2759 _cleanup_closedir_ DIR *d = NULL;
2760 const char *generator_path;
2761 const char *argv[5];
2769 generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH;
2770 d = opendir(generator_path);
2772 if (errno == ENOENT)
2775 log_error("Failed to enumerate generator directory %s: %m",
2780 r = create_generator_dir(m, &m->generator_unit_path, "generator");
2784 r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early");
2788 r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late");
2792 argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */
2793 argv[1] = m->generator_unit_path;
2794 argv[2] = m->generator_unit_path_early;
2795 argv[3] = m->generator_unit_path_late;
2798 RUN_WITH_UMASK(0022)
2799 execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv);
2802 trim_generator_dir(m, &m->generator_unit_path);
2803 trim_generator_dir(m, &m->generator_unit_path_early);
2804 trim_generator_dir(m, &m->generator_unit_path_late);
2807 static void remove_generator_dir(Manager *m, char **generator) {
2814 strv_remove(m->lookup_paths.unit_path, *generator);
2815 rm_rf(*generator, false, true, false);
2821 void manager_undo_generators(Manager *m) {
2824 remove_generator_dir(m, &m->generator_unit_path);
2825 remove_generator_dir(m, &m->generator_unit_path_early);
2826 remove_generator_dir(m, &m->generator_unit_path_late);
2829 int manager_environment_add(Manager *m, char **minus, char **plus) {
2830 char **a = NULL, **b = NULL, **l;
2835 if (!strv_isempty(minus)) {
2836 a = strv_env_delete(l, 1, minus);
2843 if (!strv_isempty(plus)) {
2844 b = strv_env_merge(2, l, plus);
2853 if (m->environment != l)
2854 strv_free(m->environment);
2861 manager_clean_environment(m);
2862 strv_sort(m->environment);
2867 int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) {
2872 for (i = 0; i < _RLIMIT_MAX; i++) {
2873 if (!default_rlimit[i])
2876 m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1);
2884 void manager_recheck_journal(Manager *m) {
2889 if (m->running_as != SYSTEMD_SYSTEM)
2892 u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET);
2893 if (u && SOCKET(u)->state != SOCKET_RUNNING) {
2894 log_close_journal();
2898 u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE);
2899 if (u && SERVICE(u)->state != SERVICE_RUNNING) {
2900 log_close_journal();
2904 /* Hmm, OK, so the socket is fully up and the service is up
2905 * too, then let's make use of the thing. */
2909 void manager_set_show_status(Manager *m, ShowStatus mode) {
2911 assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY));
2913 if (m->running_as != SYSTEMD_SYSTEM)
2916 m->show_status = mode;
2919 touch("/run/systemd/show-status");
2921 unlink("/run/systemd/show-status");
2924 static bool manager_get_show_status(Manager *m, StatusType type) {
2927 if (m->running_as != SYSTEMD_SYSTEM)
2930 if (m->no_console_output)
2933 if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING))
2936 /* If we cannot find out the status properly, just proceed. */
2937 if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0)
2940 if (m->show_status > 0)
2943 /* If Plymouth is running make sure we show the status, so
2944 * that there's something nice to see when people press Esc */
2945 return plymouth_running();
2948 void manager_set_first_boot(Manager *m, bool b) {
2951 if (m->running_as != SYSTEMD_SYSTEM)
2957 touch("/run/systemd/first-boot");
2959 unlink("/run/systemd/first-boot");
2962 void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) {
2965 /* If m is NULL, assume we're after shutdown and let the messages through. */
2967 if (m && !manager_get_show_status(m, type))
2970 /* XXX We should totally drop the check for ephemeral here
2971 * and thus effectively make 'Type=idle' pointless. */
2972 if (type == STATUS_TYPE_EPHEMERAL && m && m->n_on_console > 0)
2975 va_start(ap, format);
2976 status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap);
2980 int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) {
2981 _cleanup_free_ char *p = NULL;
2989 p = unit_name_from_path(path, suffix);
2993 found = manager_get_unit(m, p);
3003 Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) {
3004 char p[strlen(path)+1];
3010 path_kill_slashes(p);
3012 return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p);
3015 const char *manager_get_runtime_prefix(Manager *m) {
3018 return m->running_as == SYSTEMD_SYSTEM ?
3020 getenv("XDG_RUNTIME_DIR");
3023 ManagerState manager_state(Manager *m) {
3028 /* Did we ever finish booting? If not then we are still starting up */
3029 if (!dual_timestamp_is_set(&m->finish_timestamp)) {
3031 u = manager_get_unit(m, SPECIAL_BASIC_TARGET);
3032 if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u)))
3033 return MANAGER_INITIALIZING;
3035 return MANAGER_STARTING;
3038 /* Is the special shutdown target queued? If so, we are in shutdown state */
3039 u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET);
3040 if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))
3041 return MANAGER_STOPPING;
3043 /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */
3044 u = manager_get_unit(m, SPECIAL_RESCUE_TARGET);
3045 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3046 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3047 return MANAGER_MAINTENANCE;
3049 u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET);
3050 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3051 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3052 return MANAGER_MAINTENANCE;
3054 /* Are there any failed units? If so, we are in degraded mode */
3055 if (set_size(m->failed_units) > 0)
3056 return MANAGER_DEGRADED;
3058 return MANAGER_RUNNING;
3061 static const char *const manager_state_table[_MANAGER_STATE_MAX] = {
3062 [MANAGER_INITIALIZING] = "initializing",
3063 [MANAGER_STARTING] = "starting",
3064 [MANAGER_RUNNING] = "running",
3065 [MANAGER_DEGRADED] = "degraded",
3066 [MANAGER_MAINTENANCE] = "maintenance",
3067 [MANAGER_STOPPING] = "stopping",
3070 DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState);