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-common-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);
93 static int manager_run_generators(Manager *m);
94 static void manager_undo_generators(Manager *m);
96 static int manager_watch_jobs_in_progress(Manager *m) {
101 if (m->jobs_in_progress_event_source)
104 next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC;
105 return sd_event_add_time(
107 &m->jobs_in_progress_event_source,
110 manager_dispatch_jobs_in_progress, m);
113 #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1))
115 static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned pos) {
118 assert(buflen >= CYLON_BUFFER_EXTRA + width + 1);
119 assert(pos <= width+1); /* 0 or width+1 mean that the center light is behind the corner */
123 p = mempset(p, ' ', pos-2);
124 p = stpcpy(p, ANSI_RED_ON);
128 if (pos > 0 && pos <= width) {
129 p = stpcpy(p, ANSI_HIGHLIGHT_RED_ON);
133 p = stpcpy(p, ANSI_HIGHLIGHT_OFF);
136 p = stpcpy(p, ANSI_RED_ON);
139 p = mempset(p, ' ', width-1-pos);
140 strcpy(p, ANSI_HIGHLIGHT_OFF);
144 void manager_flip_auto_status(Manager *m, bool enable) {
148 if (m->show_status == SHOW_STATUS_AUTO)
149 manager_set_show_status(m, SHOW_STATUS_TEMPORARY);
151 if (m->show_status == SHOW_STATUS_TEMPORARY)
152 manager_set_show_status(m, SHOW_STATUS_AUTO);
156 static void manager_print_jobs_in_progress(Manager *m) {
157 _cleanup_free_ char *job_of_n = NULL;
160 unsigned counter = 0, print_nr;
161 char cylon[6 + CYLON_BUFFER_EXTRA + 1];
163 char time[FORMAT_TIMESPAN_MAX], limit[FORMAT_TIMESPAN_MAX] = "no limit";
167 assert(m->n_running_jobs > 0);
169 manager_flip_auto_status(m, true);
171 print_nr = (m->jobs_in_progress_iteration / JOBS_IN_PROGRESS_PERIOD_DIVISOR) % m->n_running_jobs;
173 HASHMAP_FOREACH(j, m->jobs, i)
174 if (j->state == JOB_RUNNING && counter++ == print_nr)
177 /* m->n_running_jobs must be consistent with the contents of m->jobs,
178 * so the above loop must have succeeded in finding j. */
179 assert(counter == print_nr + 1);
182 cylon_pos = m->jobs_in_progress_iteration % 14;
184 cylon_pos = 14 - cylon_pos;
185 draw_cylon(cylon, sizeof(cylon), 6, cylon_pos);
187 m->jobs_in_progress_iteration++;
189 if (m->n_running_jobs > 1)
190 asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs);
192 format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC);
193 if (job_get_timeout(j, &x) > 0)
194 format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC);
196 manager_status_printf(m, STATUS_TYPE_EPHEMERAL, cylon,
197 "%sA %s job is running for %s (%s / %s)",
199 job_type_to_string(j->type),
200 unit_description(j->unit),
204 static int have_ask_password(void) {
205 _cleanup_closedir_ DIR *dir;
207 dir = opendir("/run/systemd/ask-password");
220 if (!de && errno != 0)
225 if (startswith(de->d_name, "ask."))
230 static int manager_dispatch_ask_password_fd(sd_event_source *source,
231 int fd, uint32_t revents, void *userdata) {
232 Manager *m = userdata;
238 m->have_ask_password = have_ask_password();
239 if (m->have_ask_password < 0)
240 /* Log error but continue. Negative have_ask_password
241 * is treated as unknown status. */
242 log_error_errno(m->have_ask_password, "Failed to list /run/systemd/ask-password: %m");
247 static void manager_close_ask_password(Manager *m) {
250 m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd);
251 m->ask_password_event_source = sd_event_source_unref(m->ask_password_event_source);
252 m->have_ask_password = -EINVAL;
255 static int manager_check_ask_password(Manager *m) {
260 if (!m->ask_password_event_source) {
261 assert(m->ask_password_inotify_fd < 0);
263 mkdir_p_label("/run/systemd/ask-password", 0755);
265 m->ask_password_inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
266 if (m->ask_password_inotify_fd < 0)
267 return log_error_errno(errno, "inotify_init1() failed: %m");
269 if (inotify_add_watch(m->ask_password_inotify_fd, "/run/systemd/ask-password", IN_CREATE|IN_DELETE|IN_MOVE) < 0) {
270 log_error_errno(errno, "Failed to add watch on /run/systemd/ask-password: %m");
271 manager_close_ask_password(m);
275 r = sd_event_add_io(m->event, &m->ask_password_event_source,
276 m->ask_password_inotify_fd, EPOLLIN,
277 manager_dispatch_ask_password_fd, m);
279 log_error_errno(errno, "Failed to add event source for /run/systemd/ask-password: %m");
280 manager_close_ask_password(m);
284 /* Queries might have been added meanwhile... */
285 manager_dispatch_ask_password_fd(m->ask_password_event_source,
286 m->ask_password_inotify_fd, EPOLLIN, m);
289 return m->have_ask_password;
292 static int manager_watch_idle_pipe(Manager *m) {
297 if (m->idle_pipe_event_source)
300 if (m->idle_pipe[2] < 0)
303 r = sd_event_add_io(m->event, &m->idle_pipe_event_source, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m);
305 return log_error_errno(r, "Failed to watch idle pipe: %m");
310 static void manager_close_idle_pipe(Manager *m) {
313 safe_close_pair(m->idle_pipe);
314 safe_close_pair(m->idle_pipe + 2);
317 static int manager_setup_time_change(Manager *m) {
320 /* We only care for the cancellation event, hence we set the
321 * timeout to the latest possible value. */
322 struct itimerspec its = {
323 .it_value.tv_sec = TIME_T_MAX,
327 assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX));
332 /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever
333 * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */
335 m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC);
336 if (m->time_change_fd < 0)
337 return log_error_errno(errno, "Failed to create timerfd: %m");
339 if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) {
340 log_debug_errno(errno, "Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m");
341 m->time_change_fd = safe_close(m->time_change_fd);
345 r = sd_event_add_io(m->event, &m->time_change_event_source, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m);
347 return log_error_errno(r, "Failed to create time change event source: %m");
349 log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd.");
354 static int enable_special_signals(Manager *m) {
355 _cleanup_close_ int fd = -1;
359 /* Enable that we get SIGINT on control-alt-del. In containers
360 * this will fail with EPERM (older) or EINVAL (newer), so
362 if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL)
363 log_warning_errno(errno, "Failed to enable ctrl-alt-del handling: %m");
365 fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);
367 /* Support systems without virtual console */
369 log_warning_errno(errno, "Failed to open /dev/tty0: %m");
371 /* Enable that we get SIGWINCH on kbrequest */
372 if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0)
373 log_warning_errno(errno, "Failed to enable kbrequest handling: %m");
379 static int manager_setup_signals(Manager *m) {
380 struct sigaction sa = {
381 .sa_handler = SIG_DFL,
382 .sa_flags = SA_NOCLDSTOP|SA_RESTART,
389 assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
391 /* We make liberal use of realtime signals here. On
392 * Linux/glibc we have 30 of them (with the exception of Linux
393 * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30
396 assert_se(sigemptyset(&mask) == 0);
397 sigset_add_many(&mask,
398 SIGCHLD, /* Child died */
399 SIGTERM, /* Reexecute daemon */
400 SIGHUP, /* Reload configuration */
401 SIGUSR1, /* systemd/upstart: reconnect to D-Bus */
402 SIGUSR2, /* systemd: dump status */
403 SIGINT, /* Kernel sends us this on control-alt-del */
404 SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */
405 SIGPWR, /* Some kernel drivers and upsd send us this on power failure */
407 SIGRTMIN+0, /* systemd: start default.target */
408 SIGRTMIN+1, /* systemd: isolate rescue.target */
409 SIGRTMIN+2, /* systemd: isolate emergency.target */
410 SIGRTMIN+3, /* systemd: start halt.target */
411 SIGRTMIN+4, /* systemd: start poweroff.target */
412 SIGRTMIN+5, /* systemd: start reboot.target */
413 SIGRTMIN+6, /* systemd: start kexec.target */
415 /* ... space for more special targets ... */
417 SIGRTMIN+13, /* systemd: Immediate halt */
418 SIGRTMIN+14, /* systemd: Immediate poweroff */
419 SIGRTMIN+15, /* systemd: Immediate reboot */
420 SIGRTMIN+16, /* systemd: Immediate kexec */
422 /* ... space for more immediate system state changes ... */
424 SIGRTMIN+20, /* systemd: enable status messages */
425 SIGRTMIN+21, /* systemd: disable status messages */
426 SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */
427 SIGRTMIN+23, /* systemd: set log level to LOG_INFO */
428 SIGRTMIN+24, /* systemd: Immediate exit (--user only) */
430 /* .. one free signal here ... */
432 #if !defined(__hppa64__) && !defined(__hppa__)
433 /* Apparently Linux on hppa has fewer RT
434 * signals (SIGRTMAX is SIGRTMIN+25 there),
435 * hence let's not try to make use of them
436 * here. Since these commands are accessible
437 * by different means and only really a safety
438 * net, the missing functionality on hppa
439 * shouldn't matter. */
441 SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */
442 SIGRTMIN+27, /* systemd: set log target to console */
443 SIGRTMIN+28, /* systemd: set log target to kmsg */
444 SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete) */
446 /* ... one free signal here SIGRTMIN+30 ... */
449 assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
451 m->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
452 if (m->signal_fd < 0)
455 r = sd_event_add_io(m->event, &m->signal_event_source, m->signal_fd, EPOLLIN, manager_dispatch_signal_fd, m);
459 /* Process signals a bit earlier than the rest of things, but
460 * later than notify_fd processing, so that the notify
461 * processing can still figure out to which process/service a
462 * message belongs, before we reap the process. */
463 r = sd_event_source_set_priority(m->signal_event_source, -5);
467 if (m->running_as == SYSTEMD_SYSTEM)
468 return enable_special_signals(m);
473 static void manager_clean_environment(Manager *m) {
476 /* Let's remove some environment variables that we
477 * need ourselves to communicate with our clients */
490 static int manager_default_environment(Manager *m) {
493 if (m->running_as == SYSTEMD_SYSTEM) {
494 /* The system manager always starts with a clean
495 * environment for its children. It does not import
496 * the kernel or the parents exported variables.
498 * The initial passed environ is untouched to keep
499 * /proc/self/environ valid; it is used for tagging
500 * the init process inside containers. */
501 m->environment = strv_new("PATH=" DEFAULT_PATH,
504 /* Import locale variables LC_*= from configuration */
505 locale_setup(&m->environment);
507 /* The user manager passes its own environment
508 * along to its children. */
509 m->environment = strv_copy(environ);
515 manager_clean_environment(m);
516 strv_sort(m->environment);
521 int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) {
526 assert(running_as >= 0);
527 assert(running_as < _SYSTEMD_RUNNING_AS_MAX);
529 m = new0(Manager, 1);
534 if (running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0)
535 boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp);
538 m->running_as = running_as;
539 m->exit_code = _MANAGER_EXIT_CODE_INVALID;
540 m->default_timer_accuracy_usec = USEC_PER_MINUTE;
542 m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1;
544 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 = m->utab_inotify_fd = -1;
545 m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */
547 m->ask_password_inotify_fd = -1;
548 m->have_ask_password = -EINVAL; /* we don't know */
550 m->test_run = test_run;
552 /* Reboot immediately if the user hits C-A-D more often than 7x per 2s */
553 RATELIMIT_INIT(m->ctrl_alt_del_ratelimit, 2 * USEC_PER_SEC, 7);
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 return log_error_errno(errno, "Failed to allocate notification socket: %m");
653 if (m->running_as == SYSTEMD_SYSTEM)
654 m->notify_socket = strdup("/run/systemd/notify");
658 e = getenv("XDG_RUNTIME_DIR");
660 log_error_errno(errno, "XDG_RUNTIME_DIR is not set: %m");
664 m->notify_socket = strappend(e, "/systemd/notify");
666 if (!m->notify_socket)
669 (void) mkdir_parents_label(m->notify_socket, 0755);
670 (void) unlink(m->notify_socket);
672 strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1);
673 r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path));
675 return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path);
677 r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one));
679 return log_error_errno(errno, "SO_PASSCRED failed: %m");
684 log_debug("Using notification socket %s", m->notify_socket);
687 if (!m->notify_event_source) {
688 r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m);
690 return log_error_errno(r, "Failed to allocate notify event source: %m");
692 /* Process signals a bit earlier than SIGCHLD, so that we can
693 * still identify to which service an exit message belongs */
694 r = sd_event_source_set_priority(m->notify_event_source, -7);
696 return log_error_errno(r, "Failed to set priority of notify event source: %m");
702 static int manager_setup_kdbus(Manager *m) {
704 _cleanup_free_ char *p = NULL;
708 if (m->test_run || m->kdbus_fd >= 0)
711 if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0)
712 bus_kernel_fix_attach_mask();
714 m->kdbus_fd = bus_kernel_create_bus(
715 m->running_as == SYSTEMD_SYSTEM ? "system" : "user",
716 m->running_as == SYSTEMD_SYSTEM, &p);
719 return log_debug_errno(m->kdbus_fd, "Failed to set up kdbus: %m");
721 log_debug("Successfully set up kdbus on %s", p);
727 static int manager_connect_bus(Manager *m, bool reexecuting) {
728 bool try_bus_connect;
738 (m->running_as == SYSTEMD_USER && getenv("DBUS_SESSION_BUS_ADDRESS"));
740 /* Try to connect to the busses, if possible. */
741 return bus_init(m, try_bus_connect);
744 static unsigned manager_dispatch_cleanup_queue(Manager *m) {
750 while ((u = m->cleanup_queue)) {
751 assert(u->in_cleanup_queue);
761 GC_OFFSET_IN_PATH, /* This one is on the path we were traveling */
762 GC_OFFSET_UNSURE, /* No clue */
763 GC_OFFSET_GOOD, /* We still need this unit */
764 GC_OFFSET_BAD, /* We don't need this unit anymore */
768 static void unit_gc_sweep(Unit *u, unsigned gc_marker) {
775 if (u->gc_marker == gc_marker + GC_OFFSET_GOOD ||
776 u->gc_marker == gc_marker + GC_OFFSET_BAD ||
777 u->gc_marker == gc_marker + GC_OFFSET_IN_PATH)
780 if (u->in_cleanup_queue)
783 if (unit_check_gc(u))
786 u->gc_marker = gc_marker + GC_OFFSET_IN_PATH;
790 SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) {
791 unit_gc_sweep(other, gc_marker);
793 if (other->gc_marker == gc_marker + GC_OFFSET_GOOD)
796 if (other->gc_marker != gc_marker + GC_OFFSET_BAD)
803 /* We were unable to find anything out about this entry, so
804 * let's investigate it later */
805 u->gc_marker = gc_marker + GC_OFFSET_UNSURE;
806 unit_add_to_gc_queue(u);
810 /* We definitely know that this one is not useful anymore, so
811 * let's mark it for deletion */
812 u->gc_marker = gc_marker + GC_OFFSET_BAD;
813 unit_add_to_cleanup_queue(u);
817 u->gc_marker = gc_marker + GC_OFFSET_GOOD;
820 static unsigned manager_dispatch_gc_queue(Manager *m) {
827 /* log_debug("Running GC..."); */
829 m->gc_marker += _GC_OFFSET_MAX;
830 if (m->gc_marker + _GC_OFFSET_MAX <= _GC_OFFSET_MAX)
833 gc_marker = m->gc_marker;
835 while ((u = m->gc_queue)) {
836 assert(u->in_gc_queue);
838 unit_gc_sweep(u, gc_marker);
840 LIST_REMOVE(gc_queue, m->gc_queue, u);
841 u->in_gc_queue = false;
845 if (u->gc_marker == gc_marker + GC_OFFSET_BAD ||
846 u->gc_marker == gc_marker + GC_OFFSET_UNSURE) {
847 log_unit_debug(u->id, "Collecting %s", u->id);
848 u->gc_marker = gc_marker + GC_OFFSET_BAD;
849 unit_add_to_cleanup_queue(u);
853 m->n_in_gc_queue = 0;
858 static void manager_clear_jobs_and_units(Manager *m) {
863 while ((u = hashmap_first(m->units)))
866 manager_dispatch_cleanup_queue(m);
868 assert(!m->load_queue);
869 assert(!m->run_queue);
870 assert(!m->dbus_unit_queue);
871 assert(!m->dbus_job_queue);
872 assert(!m->cleanup_queue);
873 assert(!m->gc_queue);
875 assert(hashmap_isempty(m->jobs));
876 assert(hashmap_isempty(m->units));
879 m->n_running_jobs = 0;
882 Manager* manager_free(Manager *m) {
889 manager_clear_jobs_and_units(m);
891 for (c = 0; c < _UNIT_TYPE_MAX; c++)
892 if (unit_vtable[c]->shutdown)
893 unit_vtable[c]->shutdown(m);
895 /* If we reexecute ourselves, we keep the root cgroup
897 manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE);
899 manager_undo_generators(m);
903 hashmap_free(m->units);
904 hashmap_free(m->jobs);
905 hashmap_free(m->watch_pids1);
906 hashmap_free(m->watch_pids2);
907 hashmap_free(m->watch_bus);
909 set_free(m->startup_units);
910 set_free(m->failed_units);
912 sd_event_source_unref(m->signal_event_source);
913 sd_event_source_unref(m->notify_event_source);
914 sd_event_source_unref(m->time_change_event_source);
915 sd_event_source_unref(m->jobs_in_progress_event_source);
916 sd_event_source_unref(m->idle_pipe_event_source);
917 sd_event_source_unref(m->run_queue_event_source);
919 safe_close(m->signal_fd);
920 safe_close(m->notify_fd);
921 safe_close(m->time_change_fd);
922 safe_close(m->kdbus_fd);
924 manager_close_ask_password(m);
926 manager_close_idle_pipe(m);
929 sd_event_unref(m->event);
931 free(m->notify_socket);
933 lookup_paths_free(&m->lookup_paths);
934 strv_free(m->environment);
936 hashmap_free(m->cgroup_unit);
937 set_free_free(m->unit_path_cache);
939 free(m->switch_root);
940 free(m->switch_root_init);
942 for (i = 0; i < _RLIMIT_MAX; i++)
945 assert(hashmap_isempty(m->units_requiring_mounts_for));
946 hashmap_free(m->units_requiring_mounts_for);
952 int manager_enumerate(Manager *m) {
958 /* Let's ask every type to load all units from disk/kernel
959 * that it might know */
960 for (c = 0; c < _UNIT_TYPE_MAX; c++) {
963 if (unit_vtable[c]->supported && !unit_vtable[c]->supported(m)) {
964 log_info("Unit type .%s is not supported on this system.", unit_type_to_string(c));
968 if (!unit_vtable[c]->enumerate)
971 q = unit_vtable[c]->enumerate(m);
976 manager_dispatch_load_queue(m);
980 static int manager_coldplug(Manager *m) {
988 /* Then, let's set up their initial state. */
989 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
996 q = unit_coldplug(u);
1004 static void manager_build_unit_path_cache(Manager *m) {
1006 _cleanup_closedir_ DIR *d = NULL;
1011 set_free_free(m->unit_path_cache);
1013 m->unit_path_cache = set_new(&string_hash_ops);
1014 if (!m->unit_path_cache) {
1015 log_error("Failed to allocate unit path cache.");
1019 /* This simply builds a list of files we know exist, so that
1020 * we don't always have to go to disk */
1022 STRV_FOREACH(i, m->lookup_paths.unit_path) {
1027 if (errno != ENOENT)
1028 log_error_errno(errno, "Failed to open directory %s: %m", *i);
1032 while ((de = readdir(d))) {
1035 if (hidden_file(de->d_name))
1038 p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL);
1044 r = set_consume(m->unit_path_cache, p);
1056 log_error_errno(r, "Failed to build unit path cache: %m");
1058 set_free_free(m->unit_path_cache);
1059 m->unit_path_cache = NULL;
1063 static int manager_distribute_fds(Manager *m, FDSet *fds) {
1070 HASHMAP_FOREACH(u, m->units, i) {
1072 if (fdset_size(fds) <= 0)
1075 if (UNIT_VTABLE(u)->distribute_fds) {
1076 r = UNIT_VTABLE(u)->distribute_fds(u, fds);
1085 int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
1090 dual_timestamp_get(&m->generators_start_timestamp);
1091 r = manager_run_generators(m);
1092 dual_timestamp_get(&m->generators_finish_timestamp);
1096 r = lookup_paths_init(
1097 &m->lookup_paths, m->running_as, true,
1099 m->generator_unit_path,
1100 m->generator_unit_path_early,
1101 m->generator_unit_path_late);
1105 manager_build_unit_path_cache(m);
1107 /* If we will deserialize make sure that during enumeration
1108 * this is already known, so we increase the counter here
1113 /* First, enumerate what we can from all config files */
1114 dual_timestamp_get(&m->units_load_start_timestamp);
1115 r = manager_enumerate(m);
1116 dual_timestamp_get(&m->units_load_finish_timestamp);
1118 /* Second, deserialize if there is something to deserialize */
1120 r = manager_deserialize(m, serialization, fds);
1122 /* Any fds left? Find some unit which wants them. This is
1123 * useful to allow container managers to pass some file
1124 * descriptors to us pre-initialized. This enables
1125 * socket-based activation of entire containers. */
1126 if (fdset_size(fds) > 0) {
1127 q = manager_distribute_fds(m, fds);
1128 if (q < 0 && r == 0)
1132 /* We might have deserialized the notify fd, but if we didn't
1133 * then let's create the bus now */
1134 q = manager_setup_notify(m);
1135 if (q < 0 && r == 0)
1138 /* We might have deserialized the kdbus control fd, but if we
1139 * didn't, then let's create the bus now. */
1140 manager_setup_kdbus(m);
1141 manager_connect_bus(m, !!serialization);
1142 bus_track_coldplug(m, &m->subscribed, &m->deserialized_subscribed);
1144 /* Third, fire things up! */
1145 q = manager_coldplug(m);
1146 if (q < 0 && r == 0)
1149 if (serialization) {
1150 assert(m->n_reloading > 0);
1153 /* Let's wait for the UnitNew/JobNew messages being
1154 * sent, before we notify that the reload is
1156 m->send_reloading_done = true;
1162 int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool override, sd_bus_error *e, Job **_ret) {
1167 assert(type < _JOB_TYPE_MAX);
1169 assert(mode < _JOB_MODE_MAX);
1171 if (mode == JOB_ISOLATE && type != JOB_START)
1172 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start.");
1174 if (mode == JOB_ISOLATE && !unit->allow_isolate)
1175 return sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated.");
1177 log_unit_debug(unit->id,
1178 "Trying to enqueue job %s/%s/%s", unit->id,
1179 job_type_to_string(type), job_mode_to_string(mode));
1181 job_type_collapse(&type, unit);
1183 tr = transaction_new(mode == JOB_REPLACE_IRREVERSIBLY);
1187 r = transaction_add_job_and_dependencies(tr, type, unit, NULL, true, override, false,
1188 mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS,
1189 mode == JOB_IGNORE_DEPENDENCIES, e);
1193 if (mode == JOB_ISOLATE) {
1194 r = transaction_add_isolate_jobs(tr, m);
1199 r = transaction_activate(tr, m, mode, e);
1203 log_unit_debug(unit->id,
1204 "Enqueued job %s/%s as %u", unit->id,
1205 job_type_to_string(type), (unsigned) tr->anchor_job->id);
1208 *_ret = tr->anchor_job;
1210 transaction_free(tr);
1214 transaction_abort(tr);
1215 transaction_free(tr);
1219 int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool override, sd_bus_error *e, Job **_ret) {
1224 assert(type < _JOB_TYPE_MAX);
1226 assert(mode < _JOB_MODE_MAX);
1228 r = manager_load_unit(m, name, NULL, NULL, &unit);
1232 return manager_add_job(m, type, unit, mode, override, e, _ret);
1235 Job *manager_get_job(Manager *m, uint32_t id) {
1238 return hashmap_get(m->jobs, UINT32_TO_PTR(id));
1241 Unit *manager_get_unit(Manager *m, const char *name) {
1245 return hashmap_get(m->units, name);
1248 unsigned manager_dispatch_load_queue(Manager *m) {
1254 /* Make sure we are not run recursively */
1255 if (m->dispatching_load_queue)
1258 m->dispatching_load_queue = true;
1260 /* Dispatches the load queue. Takes a unit from the queue and
1261 * tries to load its data until the queue is empty */
1263 while ((u = m->load_queue)) {
1264 assert(u->in_load_queue);
1270 m->dispatching_load_queue = false;
1274 int manager_load_unit_prepare(
1286 assert(name || path);
1288 /* This will prepare the unit for loading, but not actually
1289 * load anything from disk. */
1291 if (path && !is_path(path))
1292 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
1295 name = basename(path);
1297 t = unit_name_to_type(name);
1299 if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid(name, TEMPLATE_INVALID))
1300 return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Unit name %s is not valid.", name);
1302 ret = manager_get_unit(m, name);
1308 ret = unit_new(m, unit_vtable[t]->object_size);
1313 ret->fragment_path = strdup(path);
1314 if (!ret->fragment_path) {
1320 r = unit_add_name(ret, name);
1326 unit_add_to_load_queue(ret);
1327 unit_add_to_dbus_queue(ret);
1328 unit_add_to_gc_queue(ret);
1336 int manager_load_unit(
1347 /* This will load the service information files, but not actually
1348 * start any services or anything. */
1350 r = manager_load_unit_prepare(m, name, path, e, _ret);
1354 manager_dispatch_load_queue(m);
1357 *_ret = unit_follow_merge(*_ret);
1362 void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) {
1369 HASHMAP_FOREACH(j, s->jobs, i)
1370 job_dump(j, f, prefix);
1373 void manager_dump_units(Manager *s, FILE *f, const char *prefix) {
1381 HASHMAP_FOREACH_KEY(u, t, s->units, i)
1383 unit_dump(u, f, prefix);
1386 void manager_clear_jobs(Manager *m) {
1391 while ((j = hashmap_first(m->jobs)))
1392 /* No need to recurse. We're cancelling all jobs. */
1393 job_finish_and_invalidate(j, JOB_CANCELED, false);
1396 static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) {
1397 Manager *m = userdata;
1403 while ((j = m->run_queue)) {
1404 assert(j->installed);
1405 assert(j->in_run_queue);
1407 job_run_and_invalidate(j);
1410 if (m->n_running_jobs > 0)
1411 manager_watch_jobs_in_progress(m);
1413 if (m->n_on_console > 0)
1414 manager_watch_idle_pipe(m);
1419 static unsigned manager_dispatch_dbus_queue(Manager *m) {
1426 if (m->dispatching_dbus_queue)
1429 m->dispatching_dbus_queue = true;
1431 while ((u = m->dbus_unit_queue)) {
1432 assert(u->in_dbus_queue);
1434 bus_unit_send_change_signal(u);
1438 while ((j = m->dbus_job_queue)) {
1439 assert(j->in_dbus_queue);
1441 bus_job_send_change_signal(j);
1445 m->dispatching_dbus_queue = false;
1447 if (m->send_reloading_done) {
1448 m->send_reloading_done = false;
1450 bus_manager_send_reloading(m, false);
1453 if (m->queued_message)
1454 bus_send_queued_message(m);
1459 static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n, FDSet *fds) {
1460 _cleanup_strv_free_ char **tags = NULL;
1467 tags = strv_split(buf, "\n\r");
1473 log_unit_debug(u->id, "Got notification message for unit %s", u->id);
1475 if (UNIT_VTABLE(u)->notify_message)
1476 UNIT_VTABLE(u)->notify_message(u, pid, tags, fds);
1479 static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1480 Manager *m = userdata;
1485 assert(m->notify_fd == fd);
1487 if (revents != EPOLLIN) {
1488 log_warning("Got unexpected poll event for notify fd.");
1493 _cleanup_fdset_free_ FDSet *fds = NULL;
1494 char buf[NOTIFY_BUFFER_MAX+1];
1495 struct iovec iovec = {
1497 .iov_len = sizeof(buf)-1,
1500 struct cmsghdr cmsghdr;
1501 uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) +
1502 CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)];
1504 struct msghdr msghdr = {
1507 .msg_control = &control,
1508 .msg_controllen = sizeof(control),
1510 struct cmsghdr *cmsg;
1511 struct ucred *ucred = NULL;
1514 int *fd_array = NULL;
1517 n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC);
1519 if (errno == EAGAIN || errno == EINTR)
1525 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg; cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1526 if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
1528 fd_array = (int*) CMSG_DATA(cmsg);
1529 n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int);
1531 } else if (cmsg->cmsg_level == SOL_SOCKET &&
1532 cmsg->cmsg_type == SCM_CREDENTIALS &&
1533 cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) {
1535 ucred = (struct ucred*) CMSG_DATA(cmsg);
1542 r = fdset_new_array(&fds, fd_array, n_fds);
1544 close_many(fd_array, n_fds);
1549 if (!ucred || ucred->pid <= 0) {
1550 log_warning("Received notify message without valid credentials. Ignoring.");
1554 if ((size_t) n >= sizeof(buf)) {
1555 log_warning("Received notify message exceeded maximum size. Ignoring.");
1561 /* Notify every unit that might be interested, but try
1562 * to avoid notifying the same one multiple times. */
1563 u1 = manager_get_unit_by_pid(m, ucred->pid);
1565 manager_invoke_notify_message(m, u1, ucred->pid, buf, n, fds);
1569 u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid));
1570 if (u2 && u2 != u1) {
1571 manager_invoke_notify_message(m, u2, ucred->pid, buf, n, fds);
1575 u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid));
1576 if (u3 && u3 != u2 && u3 != u1) {
1577 manager_invoke_notify_message(m, u3, ucred->pid, buf, n, fds);
1582 log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid);
1584 if (fdset_size(fds) > 0)
1585 log_warning("Got auxiliary fds with notification message, closing all.");
1591 static void invoke_sigchld_event(Manager *m, Unit *u, siginfo_t *si) {
1596 log_unit_debug(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id);
1598 unit_unwatch_pid(u, si->si_pid);
1599 UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status);
1602 static int manager_dispatch_sigchld(Manager *m) {
1608 /* First we call waitd() for a PID and do not reap the
1609 * zombie. That way we can still access /proc/$PID for
1610 * it while it is a zombie. */
1611 if (waitid(P_ALL, 0, &si, WEXITED|WNOHANG|WNOWAIT) < 0) {
1613 if (errno == ECHILD)
1625 if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) {
1626 _cleanup_free_ char *name = NULL;
1629 get_process_comm(si.si_pid, &name);
1631 log_debug("Child "PID_FMT" (%s) died (code=%s, status=%i/%s)",
1632 si.si_pid, strna(name),
1633 sigchld_code_to_string(si.si_code),
1635 strna(si.si_code == CLD_EXITED
1636 ? exit_status_to_string(si.si_status, EXIT_STATUS_FULL)
1637 : signal_to_string(si.si_status)));
1639 /* And now figure out the unit this belongs
1640 * to, it might be multiple... */
1641 u1 = manager_get_unit_by_pid(m, si.si_pid);
1643 invoke_sigchld_event(m, u1, &si);
1644 u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid));
1646 invoke_sigchld_event(m, u2, &si);
1647 u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid));
1648 if (u3 && u3 != u2 && u3 != u1)
1649 invoke_sigchld_event(m, u3, &si);
1652 /* And now, we actually reap the zombie. */
1653 if (waitid(P_PID, si.si_pid, &si, WEXITED) < 0) {
1664 static int manager_start_target(Manager *m, const char *name, JobMode mode) {
1665 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1668 log_unit_debug(name, "Activating special unit %s", name);
1670 r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL);
1672 log_unit_error(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r));
1677 static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1678 Manager *m = userdata;
1680 struct signalfd_siginfo sfsi;
1681 bool sigchld = false;
1684 assert(m->signal_fd == fd);
1686 if (revents != EPOLLIN) {
1687 log_warning("Got unexpected events from signal file descriptor.");
1692 n = read(m->signal_fd, &sfsi, sizeof(sfsi));
1693 if (n != sizeof(sfsi)) {
1698 if (errno == EINTR || errno == EAGAIN)
1704 log_received_signal(sfsi.ssi_signo == SIGCHLD ||
1705 (sfsi.ssi_signo == SIGTERM && m->running_as == SYSTEMD_USER)
1706 ? LOG_DEBUG : LOG_INFO,
1709 switch (sfsi.ssi_signo) {
1716 if (m->running_as == SYSTEMD_SYSTEM) {
1717 /* This is for compatibility with the
1718 * original sysvinit */
1719 m->exit_code = MANAGER_REEXECUTE;
1726 if (m->running_as == SYSTEMD_SYSTEM) {
1728 /* If the user presses C-A-D more than
1729 * 7 times within 2s, we reboot
1732 if (ratelimit_test(&m->ctrl_alt_del_ratelimit))
1733 manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
1735 log_notice("Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately.");
1736 status_printf(NULL, true, false, "Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately.");
1737 m->exit_code = MANAGER_REBOOT;
1743 /* Run the exit target if there is one, if not, just exit. */
1744 if (manager_start_target(m, SPECIAL_EXIT_TARGET, JOB_REPLACE) < 0) {
1745 m->exit_code = MANAGER_EXIT;
1752 if (m->running_as == SYSTEMD_SYSTEM)
1753 manager_start_target(m, SPECIAL_KBREQUEST_TARGET, JOB_REPLACE);
1755 /* This is a nop on non-init */
1759 if (m->running_as == SYSTEMD_SYSTEM)
1760 manager_start_target(m, SPECIAL_SIGPWR_TARGET, JOB_REPLACE);
1762 /* This is a nop on non-init */
1768 u = manager_get_unit(m, SPECIAL_DBUS_SERVICE);
1770 if (!u || UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u))) {
1771 log_info("Trying to reconnect to bus...");
1775 if (!u || !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) {
1776 log_info("Loading D-Bus service...");
1777 manager_start_target(m, SPECIAL_DBUS_SERVICE, JOB_REPLACE);
1784 _cleanup_free_ char *dump = NULL;
1785 _cleanup_fclose_ FILE *f = NULL;
1788 f = open_memstream(&dump, &size);
1790 log_warning("Failed to allocate memory stream.");
1794 manager_dump_units(m, f, "\t");
1795 manager_dump_jobs(m, f, "\t");
1798 log_warning("Failed to write status stream");
1803 log_warning("Failed to flush status stream");
1807 log_dump(LOG_INFO, dump);
1812 m->exit_code = MANAGER_RELOAD;
1817 /* Starting SIGRTMIN+0 */
1818 static const char * const target_table[] = {
1819 [0] = SPECIAL_DEFAULT_TARGET,
1820 [1] = SPECIAL_RESCUE_TARGET,
1821 [2] = SPECIAL_EMERGENCY_TARGET,
1822 [3] = SPECIAL_HALT_TARGET,
1823 [4] = SPECIAL_POWEROFF_TARGET,
1824 [5] = SPECIAL_REBOOT_TARGET,
1825 [6] = SPECIAL_KEXEC_TARGET
1828 /* Starting SIGRTMIN+13, so that target halt and system halt are 10 apart */
1829 static const ManagerExitCode code_table[] = {
1831 [1] = MANAGER_POWEROFF,
1832 [2] = MANAGER_REBOOT,
1836 if ((int) sfsi.ssi_signo >= SIGRTMIN+0 &&
1837 (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) {
1838 int idx = (int) sfsi.ssi_signo - SIGRTMIN;
1839 manager_start_target(m, target_table[idx],
1840 (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE);
1844 if ((int) sfsi.ssi_signo >= SIGRTMIN+13 &&
1845 (int) sfsi.ssi_signo < SIGRTMIN+13+(int) ELEMENTSOF(code_table)) {
1846 m->exit_code = code_table[sfsi.ssi_signo - SIGRTMIN - 13];
1850 switch (sfsi.ssi_signo - SIGRTMIN) {
1853 log_debug("Enabling showing of status.");
1854 manager_set_show_status(m, SHOW_STATUS_YES);
1858 log_debug("Disabling showing of status.");
1859 manager_set_show_status(m, SHOW_STATUS_NO);
1863 log_set_max_level(LOG_DEBUG);
1864 log_notice("Setting log level to debug.");
1868 log_set_max_level(LOG_INFO);
1869 log_notice("Setting log level to info.");
1873 if (m->running_as == SYSTEMD_USER) {
1874 m->exit_code = MANAGER_EXIT;
1878 /* This is a nop on init */
1882 case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */
1883 log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
1884 log_notice("Setting log target to journal-or-kmsg.");
1888 log_set_target(LOG_TARGET_CONSOLE);
1889 log_notice("Setting log target to console.");
1893 log_set_target(LOG_TARGET_KMSG);
1894 log_notice("Setting log target to kmsg.");
1898 log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo));
1905 manager_dispatch_sigchld(m);
1910 static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1911 Manager *m = userdata;
1916 assert(m->time_change_fd == fd);
1918 log_struct(LOG_INFO,
1919 LOG_MESSAGE_ID(SD_MESSAGE_TIME_CHANGE),
1920 LOG_MESSAGE("Time has been changed"),
1923 /* Restart the watch */
1924 m->time_change_event_source = sd_event_source_unref(m->time_change_event_source);
1925 m->time_change_fd = safe_close(m->time_change_fd);
1927 manager_setup_time_change(m);
1929 HASHMAP_FOREACH(u, m->units, i)
1930 if (UNIT_VTABLE(u)->time_change)
1931 UNIT_VTABLE(u)->time_change(u);
1936 static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
1937 Manager *m = userdata;
1940 assert(m->idle_pipe[2] == fd);
1942 m->no_console_output = m->n_on_console > 0;
1944 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
1945 manager_close_idle_pipe(m);
1950 static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata) {
1951 Manager *m = userdata;
1958 manager_print_jobs_in_progress(m);
1960 next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC;
1961 r = sd_event_source_set_time(source, next);
1965 return sd_event_source_set_enabled(source, SD_EVENT_ONESHOT);
1968 int manager_loop(Manager *m) {
1971 RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000);
1974 m->exit_code = MANAGER_OK;
1976 /* Release the path cache */
1977 set_free_free(m->unit_path_cache);
1978 m->unit_path_cache = NULL;
1980 manager_check_finished(m);
1982 /* There might still be some zombies hanging around from
1983 * before we were exec()'ed. Let's reap them. */
1984 r = manager_dispatch_sigchld(m);
1988 while (m->exit_code == MANAGER_OK) {
1991 if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM)
1994 if (!ratelimit_test(&rl)) {
1995 /* Yay, something is going seriously wrong, pause a little */
1996 log_warning("Looping too fast. Throttling execution a little.");
2001 if (manager_dispatch_load_queue(m) > 0)
2004 if (manager_dispatch_gc_queue(m) > 0)
2007 if (manager_dispatch_cleanup_queue(m) > 0)
2010 if (manager_dispatch_cgroup_queue(m) > 0)
2013 if (manager_dispatch_dbus_queue(m) > 0)
2016 /* Sleep for half the watchdog time */
2017 if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) {
2018 wait_usec = m->runtime_watchdog / 2;
2022 wait_usec = USEC_INFINITY;
2024 r = sd_event_run(m->event, wait_usec);
2026 return log_error_errno(r, "Failed to run event loop: %m");
2029 return m->exit_code;
2032 int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u) {
2033 _cleanup_free_ char *n = NULL;
2041 r = unit_name_from_dbus_path(s, &n);
2045 r = manager_load_unit(m, n, NULL, e, &u);
2054 int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j) {
2064 p = startswith(s, "/org/freedesktop/systemd1/job/");
2068 r = safe_atou(p, &id);
2072 j = manager_get_job(m, id);
2081 void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
2084 _cleanup_free_ char *p = NULL;
2088 audit_fd = get_audit_fd();
2092 /* Don't generate audit events if the service was already
2093 * started and we're just deserializing */
2094 if (m->n_reloading > 0)
2097 if (m->running_as != SYSTEMD_SYSTEM)
2100 if (u->type != UNIT_SERVICE)
2103 p = unit_name_to_prefix_and_instance(u->id);
2109 msg = strjoina("unit=", p);
2110 if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) {
2112 /* We aren't allowed to send audit messages?
2113 * Then let's not retry again. */
2116 log_warning_errno(errno, "Failed to send audit message: %m");
2122 void manager_send_unit_plymouth(Manager *m, Unit *u) {
2123 union sockaddr_union sa = PLYMOUTH_SOCKET;
2126 _cleanup_free_ char *message = NULL;
2127 _cleanup_close_ int fd = -1;
2129 /* Don't generate plymouth events if the service was already
2130 * started and we're just deserializing */
2131 if (m->n_reloading > 0)
2134 if (m->running_as != SYSTEMD_SYSTEM)
2137 if (detect_container(NULL) > 0)
2140 if (u->type != UNIT_SERVICE &&
2141 u->type != UNIT_MOUNT &&
2142 u->type != UNIT_SWAP)
2145 /* We set SOCK_NONBLOCK here so that we rather drop the
2146 * message then wait for plymouth */
2147 fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
2149 log_error_errno(errno, "socket() failed: %m");
2153 if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
2155 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2156 log_error_errno(errno, "connect() failed: %m");
2160 if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) {
2166 if (write(fd, message, n + 1) != n + 1)
2167 if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
2168 log_error_errno(errno, "Failed to write Plymouth message: %m");
2171 void manager_dispatch_bus_name_owner_changed(
2174 const char* old_owner,
2175 const char *new_owner) {
2182 u = hashmap_get(m->watch_bus, name);
2186 UNIT_VTABLE(u)->bus_name_owner_change(u, name, old_owner, new_owner);
2189 int manager_open_serialization(Manager *m, FILE **_f) {
2196 path = m->running_as == SYSTEMD_SYSTEM ? "/run/systemd" : "/tmp";
2197 fd = open_tmpfile(path, O_RDWR|O_CLOEXEC);
2201 log_debug("Serializing state to %s", path);
2203 f = fdopen(fd, "w+");
2214 int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) {
2227 fprintf(f, "current-job-id=%"PRIu32"\n", m->current_job_id);
2228 fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr));
2229 fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs);
2230 fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs);
2232 dual_timestamp_serialize(f, "firmware-timestamp", &m->firmware_timestamp);
2233 dual_timestamp_serialize(f, "loader-timestamp", &m->loader_timestamp);
2234 dual_timestamp_serialize(f, "kernel-timestamp", &m->kernel_timestamp);
2235 dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp);
2238 dual_timestamp_serialize(f, "userspace-timestamp", &m->userspace_timestamp);
2239 dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp);
2240 dual_timestamp_serialize(f, "security-start-timestamp", &m->security_start_timestamp);
2241 dual_timestamp_serialize(f, "security-finish-timestamp", &m->security_finish_timestamp);
2242 dual_timestamp_serialize(f, "generators-start-timestamp", &m->generators_start_timestamp);
2243 dual_timestamp_serialize(f, "generators-finish-timestamp", &m->generators_finish_timestamp);
2244 dual_timestamp_serialize(f, "units-load-start-timestamp", &m->units_load_start_timestamp);
2245 dual_timestamp_serialize(f, "units-load-finish-timestamp", &m->units_load_finish_timestamp);
2248 if (!switching_root) {
2249 STRV_FOREACH(e, m->environment) {
2250 _cleanup_free_ char *ce;
2256 fprintf(f, "env=%s\n", *e);
2260 if (m->notify_fd >= 0) {
2263 copy = fdset_put_dup(fds, m->notify_fd);
2267 fprintf(f, "notify-fd=%i\n", copy);
2268 fprintf(f, "notify-socket=%s\n", m->notify_socket);
2271 if (m->kdbus_fd >= 0) {
2274 copy = fdset_put_dup(fds, m->kdbus_fd);
2278 fprintf(f, "kdbus-fd=%i\n", copy);
2281 bus_track_serialize(m->subscribed, f);
2285 HASHMAP_FOREACH_KEY(u, t, m->units, i) {
2293 r = unit_serialize(u, f, fds, !switching_root);
2300 assert(m->n_reloading > 0);
2306 r = bus_fdset_add_all(m, fds);
2313 int manager_deserialize(Manager *m, FILE *f, FDSet *fds) {
2319 log_debug("Deserializing state...");
2324 char line[LINE_MAX], *l;
2326 if (!fgets(line, sizeof(line), f)) {
2341 if (startswith(l, "current-job-id=")) {
2344 if (safe_atou32(l+15, &id) < 0)
2345 log_debug("Failed to parse current job id value %s", l+15);
2347 m->current_job_id = MAX(m->current_job_id, id);
2349 } else if (startswith(l, "n-installed-jobs=")) {
2352 if (safe_atou32(l+17, &n) < 0)
2353 log_debug("Failed to parse installed jobs counter %s", l+17);
2355 m->n_installed_jobs += n;
2357 } else if (startswith(l, "n-failed-jobs=")) {
2360 if (safe_atou32(l+14, &n) < 0)
2361 log_debug("Failed to parse failed jobs counter %s", l+14);
2363 m->n_failed_jobs += n;
2365 } else if (startswith(l, "taint-usr=")) {
2368 b = parse_boolean(l+10);
2370 log_debug("Failed to parse taint /usr flag %s", l+10);
2372 m->taint_usr = m->taint_usr || b;
2374 } else if (startswith(l, "firmware-timestamp="))
2375 dual_timestamp_deserialize(l+19, &m->firmware_timestamp);
2376 else if (startswith(l, "loader-timestamp="))
2377 dual_timestamp_deserialize(l+17, &m->loader_timestamp);
2378 else if (startswith(l, "kernel-timestamp="))
2379 dual_timestamp_deserialize(l+17, &m->kernel_timestamp);
2380 else if (startswith(l, "initrd-timestamp="))
2381 dual_timestamp_deserialize(l+17, &m->initrd_timestamp);
2382 else if (startswith(l, "userspace-timestamp="))
2383 dual_timestamp_deserialize(l+20, &m->userspace_timestamp);
2384 else if (startswith(l, "finish-timestamp="))
2385 dual_timestamp_deserialize(l+17, &m->finish_timestamp);
2386 else if (startswith(l, "security-start-timestamp="))
2387 dual_timestamp_deserialize(l+25, &m->security_start_timestamp);
2388 else if (startswith(l, "security-finish-timestamp="))
2389 dual_timestamp_deserialize(l+26, &m->security_finish_timestamp);
2390 else if (startswith(l, "generators-start-timestamp="))
2391 dual_timestamp_deserialize(l+27, &m->generators_start_timestamp);
2392 else if (startswith(l, "generators-finish-timestamp="))
2393 dual_timestamp_deserialize(l+28, &m->generators_finish_timestamp);
2394 else if (startswith(l, "units-load-start-timestamp="))
2395 dual_timestamp_deserialize(l+27, &m->units_load_start_timestamp);
2396 else if (startswith(l, "units-load-finish-timestamp="))
2397 dual_timestamp_deserialize(l+28, &m->units_load_finish_timestamp);
2398 else if (startswith(l, "env=")) {
2399 _cleanup_free_ char *uce = NULL;
2402 uce = cunescape(l+4);
2408 e = strv_env_set(m->environment, uce);
2414 strv_free(m->environment);
2417 } else if (startswith(l, "notify-fd=")) {
2420 if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2421 log_debug("Failed to parse notify fd: %s", l + 10);
2423 m->notify_event_source = sd_event_source_unref(m->notify_event_source);
2424 safe_close(m->notify_fd);
2425 m->notify_fd = fdset_remove(fds, fd);
2428 } else if (startswith(l, "notify-socket=")) {
2437 free(m->notify_socket);
2438 m->notify_socket = n;
2440 } else if (startswith(l, "kdbus-fd=")) {
2443 if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2444 log_debug("Failed to parse kdbus fd: %s", l + 9);
2446 safe_close(m->kdbus_fd);
2447 m->kdbus_fd = fdset_remove(fds, fd);
2453 k = bus_track_deserialize_item(&m->deserialized_subscribed, l);
2455 log_debug_errno(k, "Failed to deserialize bus tracker object: %m");
2457 log_debug("Unknown serialization item '%s'", l);
2463 char name[UNIT_NAME_MAX+2];
2466 if (!fgets(name, sizeof(name), f)) {
2477 r = manager_load_unit(m, strstrip(name), NULL, NULL, &u);
2481 r = unit_deserialize(u, f, fds);
2490 assert(m->n_reloading > 0);
2496 int manager_reload(Manager *m) {
2498 _cleanup_fclose_ FILE *f = NULL;
2499 _cleanup_fdset_free_ FDSet *fds = NULL;
2503 r = manager_open_serialization(m, &f);
2508 bus_manager_send_reloading(m, true);
2516 r = manager_serialize(m, f, fds, false);
2522 if (fseeko(f, 0, SEEK_SET) < 0) {
2527 /* From here on there is no way back. */
2528 manager_clear_jobs_and_units(m);
2529 manager_undo_generators(m);
2530 lookup_paths_free(&m->lookup_paths);
2532 /* Find new unit paths */
2533 q = manager_run_generators(m);
2534 if (q < 0 && r >= 0)
2537 q = lookup_paths_init(
2538 &m->lookup_paths, m->running_as, true,
2540 m->generator_unit_path,
2541 m->generator_unit_path_early,
2542 m->generator_unit_path_late);
2543 if (q < 0 && r >= 0)
2546 manager_build_unit_path_cache(m);
2548 /* First, enumerate what we can from all config files */
2549 q = manager_enumerate(m);
2550 if (q < 0 && r >= 0)
2553 /* Second, deserialize our stored data */
2554 q = manager_deserialize(m, f, fds);
2555 if (q < 0 && r >= 0)
2561 /* Re-register notify_fd as event source */
2562 q = manager_setup_notify(m);
2563 if (q < 0 && r >= 0)
2566 /* Third, fire things up! */
2567 q = manager_coldplug(m);
2568 if (q < 0 && r >= 0)
2571 assert(m->n_reloading > 0);
2574 m->send_reloading_done = true;
2579 bool manager_is_reloading_or_reexecuting(Manager *m) {
2582 return m->n_reloading != 0;
2585 void manager_reset_failed(Manager *m) {
2591 HASHMAP_FOREACH(u, m->units, i)
2592 unit_reset_failed(u);
2595 bool manager_unit_inactive_or_pending(Manager *m, const char *name) {
2601 /* Returns true if the unit is inactive or going down */
2602 u = manager_get_unit(m, name);
2606 return unit_inactive_or_pending(u);
2609 static void manager_notify_finished(Manager *m) {
2610 char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
2611 usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec;
2616 if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) {
2618 /* Note that m->kernel_usec.monotonic is always at 0,
2619 * and m->firmware_usec.monotonic and
2620 * m->loader_usec.monotonic should be considered
2621 * negative values. */
2623 firmware_usec = m->firmware_timestamp.monotonic - m->loader_timestamp.monotonic;
2624 loader_usec = m->loader_timestamp.monotonic - m->kernel_timestamp.monotonic;
2625 userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2626 total_usec = m->firmware_timestamp.monotonic + m->finish_timestamp.monotonic;
2628 if (dual_timestamp_is_set(&m->initrd_timestamp)) {
2630 kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic;
2631 initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic;
2633 log_struct(LOG_INFO,
2634 LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2635 "KERNEL_USEC="USEC_FMT, kernel_usec,
2636 "INITRD_USEC="USEC_FMT, initrd_usec,
2637 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2638 LOG_MESSAGE("Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
2639 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2640 format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC),
2641 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2642 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
2645 kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic;
2648 log_struct(LOG_INFO,
2649 LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2650 "KERNEL_USEC="USEC_FMT, kernel_usec,
2651 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2652 LOG_MESSAGE("Startup finished in %s (kernel) + %s (userspace) = %s.",
2653 format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
2654 format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
2655 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
2659 firmware_usec = loader_usec = initrd_usec = kernel_usec = 0;
2660 total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
2662 log_struct(LOG_INFO,
2663 LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
2664 "USERSPACE_USEC="USEC_FMT, userspace_usec,
2665 LOG_MESSAGE("Startup finished in %s.",
2666 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
2670 bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec);
2674 "STATUS=Startup finished in %s.",
2675 format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC));
2678 void manager_check_finished(Manager *m) {
2684 if (hashmap_size(m->jobs) > 0) {
2686 if (m->jobs_in_progress_event_source)
2687 sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC);
2692 manager_flip_auto_status(m, false);
2694 /* Notify Type=idle units that we are done now */
2695 m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
2696 manager_close_idle_pipe(m);
2698 /* Turn off confirm spawn now */
2699 m->confirm_spawn = false;
2701 /* No need to update ask password status when we're going non-interactive */
2702 manager_close_ask_password(m);
2704 /* This is no longer the first boot */
2705 manager_set_first_boot(m, false);
2707 if (dual_timestamp_is_set(&m->finish_timestamp))
2710 dual_timestamp_get(&m->finish_timestamp);
2712 manager_notify_finished(m);
2714 SET_FOREACH(u, m->startup_units, i)
2716 cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m));
2719 static int create_generator_dir(Manager *m, char **generator, const char *name) {
2730 if (m->running_as == SYSTEMD_SYSTEM && getpid() == 1) {
2731 /* systemd --system, not running --test */
2733 p = strappend("/run/systemd/", name);
2737 r = mkdir_p_label(p, 0755);
2739 log_error_errno(r, "Failed to create generator directory %s: %m", p);
2743 } else if (m->running_as == SYSTEMD_USER) {
2744 const char *s = NULL;
2746 s = getenv("XDG_RUNTIME_DIR");
2749 p = strjoin(s, "/systemd/", name, NULL);
2753 r = mkdir_p_label(p, 0755);
2755 log_error_errno(r, "Failed to create generator directory %s: %m", p);
2760 /* systemd --system --test */
2762 p = strjoin("/tmp/systemd-", name, ".XXXXXX", NULL);
2767 log_error_errno(errno, "Failed to create generator directory %s: %m",
2778 static void trim_generator_dir(Manager *m, char **generator) {
2785 if (rmdir(*generator) >= 0) {
2793 static int manager_run_generators(Manager *m) {
2794 _cleanup_free_ char **paths = NULL;
2795 const char *argv[5];
2804 paths = generator_paths(m->running_as);
2808 /* Optimize by skipping the whole process by not creating output directories
2809 * if no generators are found. */
2810 STRV_FOREACH(path, paths) {
2811 r = access(*path, F_OK);
2814 if (errno != ENOENT)
2815 log_warning_errno(errno, "Failed to open generator directory %s: %m", *path);
2820 r = create_generator_dir(m, &m->generator_unit_path, "generator");
2824 r = create_generator_dir(m, &m->generator_unit_path_early, "generator.early");
2828 r = create_generator_dir(m, &m->generator_unit_path_late, "generator.late");
2832 argv[0] = NULL; /* Leave this empty, execute_directory() will fill something in */
2833 argv[1] = m->generator_unit_path;
2834 argv[2] = m->generator_unit_path_early;
2835 argv[3] = m->generator_unit_path_late;
2838 RUN_WITH_UMASK(0022)
2839 execute_directories((const char* const*) paths, DEFAULT_TIMEOUT_USEC, (char**) argv);
2842 trim_generator_dir(m, &m->generator_unit_path);
2843 trim_generator_dir(m, &m->generator_unit_path_early);
2844 trim_generator_dir(m, &m->generator_unit_path_late);
2848 static void remove_generator_dir(Manager *m, char **generator) {
2855 strv_remove(m->lookup_paths.unit_path, *generator);
2856 rm_rf(*generator, false, true, false);
2862 static void manager_undo_generators(Manager *m) {
2865 remove_generator_dir(m, &m->generator_unit_path);
2866 remove_generator_dir(m, &m->generator_unit_path_early);
2867 remove_generator_dir(m, &m->generator_unit_path_late);
2870 int manager_environment_add(Manager *m, char **minus, char **plus) {
2871 char **a = NULL, **b = NULL, **l;
2876 if (!strv_isempty(minus)) {
2877 a = strv_env_delete(l, 1, minus);
2884 if (!strv_isempty(plus)) {
2885 b = strv_env_merge(2, l, plus);
2894 if (m->environment != l)
2895 strv_free(m->environment);
2902 manager_clean_environment(m);
2903 strv_sort(m->environment);
2908 int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) {
2913 for (i = 0; i < _RLIMIT_MAX; i++) {
2914 if (!default_rlimit[i])
2917 m->rlimit[i] = newdup(struct rlimit, default_rlimit[i], 1);
2925 void manager_recheck_journal(Manager *m) {
2930 if (m->running_as != SYSTEMD_SYSTEM)
2933 u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET);
2934 if (u && SOCKET(u)->state != SOCKET_RUNNING) {
2935 log_close_journal();
2939 u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE);
2940 if (u && SERVICE(u)->state != SERVICE_RUNNING) {
2941 log_close_journal();
2945 /* Hmm, OK, so the socket is fully up and the service is up
2946 * too, then let's make use of the thing. */
2950 void manager_set_show_status(Manager *m, ShowStatus mode) {
2952 assert(IN_SET(mode, SHOW_STATUS_AUTO, SHOW_STATUS_NO, SHOW_STATUS_YES, SHOW_STATUS_TEMPORARY));
2954 if (m->running_as != SYSTEMD_SYSTEM)
2957 m->show_status = mode;
2960 touch("/run/systemd/show-status");
2962 unlink("/run/systemd/show-status");
2965 static bool manager_get_show_status(Manager *m, StatusType type) {
2968 if (m->running_as != SYSTEMD_SYSTEM)
2971 if (m->no_console_output)
2974 if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING))
2977 /* If we cannot find out the status properly, just proceed. */
2978 if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0)
2981 if (m->show_status > 0)
2984 /* If Plymouth is running make sure we show the status, so
2985 * that there's something nice to see when people press Esc */
2986 return plymouth_running();
2989 void manager_set_first_boot(Manager *m, bool b) {
2992 if (m->running_as != SYSTEMD_SYSTEM)
2998 touch("/run/systemd/first-boot");
3000 unlink("/run/systemd/first-boot");
3003 void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) {
3006 /* If m is NULL, assume we're after shutdown and let the messages through. */
3008 if (m && !manager_get_show_status(m, type))
3011 /* XXX We should totally drop the check for ephemeral here
3012 * and thus effectively make 'Type=idle' pointless. */
3013 if (type == STATUS_TYPE_EPHEMERAL && m && m->n_on_console > 0)
3016 va_start(ap, format);
3017 status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap);
3021 int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found) {
3022 _cleanup_free_ char *p = NULL;
3030 p = unit_name_from_path(path, suffix);
3034 found = manager_get_unit(m, p);
3044 Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) {
3045 char p[strlen(path)+1];
3051 path_kill_slashes(p);
3053 return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p);
3056 const char *manager_get_runtime_prefix(Manager *m) {
3059 return m->running_as == SYSTEMD_SYSTEM ?
3061 getenv("XDG_RUNTIME_DIR");
3064 ManagerState manager_state(Manager *m) {
3069 /* Did we ever finish booting? If not then we are still starting up */
3070 if (!dual_timestamp_is_set(&m->finish_timestamp)) {
3072 u = manager_get_unit(m, SPECIAL_BASIC_TARGET);
3073 if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u)))
3074 return MANAGER_INITIALIZING;
3076 return MANAGER_STARTING;
3079 /* Is the special shutdown target queued? If so, we are in shutdown state */
3080 u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET);
3081 if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))
3082 return MANAGER_STOPPING;
3084 /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */
3085 u = manager_get_unit(m, SPECIAL_RESCUE_TARGET);
3086 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3087 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3088 return MANAGER_MAINTENANCE;
3090 u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET);
3091 if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) ||
3092 (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START))))
3093 return MANAGER_MAINTENANCE;
3095 /* Are there any failed units? If so, we are in degraded mode */
3096 if (set_size(m->failed_units) > 0)
3097 return MANAGER_DEGRADED;
3099 return MANAGER_RUNNING;
3102 static const char *const manager_state_table[_MANAGER_STATE_MAX] = {
3103 [MANAGER_INITIALIZING] = "initializing",
3104 [MANAGER_STARTING] = "starting",
3105 [MANAGER_RUNNING] = "running",
3106 [MANAGER_DEGRADED] = "degraded",
3107 [MANAGER_MAINTENANCE] = "maintenance",
3108 [MANAGER_STOPPING] = "stopping",
3111 DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState);