1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2011 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/timerfd.h>
30 #include "sd-daemon.h"
32 #include "conf-parser.h"
35 #include "bus-error.h"
37 #include "udev-util.h"
39 Manager *manager_new(void) {
47 m->console_active_fd = -1;
48 m->reserve_vt_fd = -1;
53 m->inhibit_delay_max = 5 * USEC_PER_SEC;
54 m->handle_power_key = HANDLE_POWEROFF;
55 m->handle_suspend_key = HANDLE_SUSPEND;
56 m->handle_hibernate_key = HANDLE_HIBERNATE;
57 m->handle_lid_switch = HANDLE_SUSPEND;
58 m->handle_lid_switch_docked = HANDLE_IGNORE;
59 m->lid_switch_ignore_inhibited = true;
61 m->idle_action_usec = 30 * USEC_PER_MINUTE;
62 m->idle_action = HANDLE_IGNORE;
63 m->idle_action_not_before_usec = now(CLOCK_MONOTONIC);
65 m->runtime_dir_size = PAGE_ALIGN((size_t) (physical_memory() / 10)); /* 10% */
67 m->devices = hashmap_new(&string_hash_ops);
68 m->seats = hashmap_new(&string_hash_ops);
69 m->sessions = hashmap_new(&string_hash_ops);
70 m->users = hashmap_new(NULL);
71 m->inhibitors = hashmap_new(&string_hash_ops);
72 m->buttons = hashmap_new(&string_hash_ops);
74 m->user_units = hashmap_new(&string_hash_ops);
75 m->session_units = hashmap_new(&string_hash_ops);
77 m->busnames = set_new(&string_hash_ops);
79 if (!m->devices || !m->seats || !m->sessions || !m->users || !m->inhibitors || !m->buttons || !m->busnames ||
80 !m->user_units || !m->session_units)
83 m->kill_exclude_users = strv_new("root", NULL);
84 if (!m->kill_exclude_users)
91 r = sd_event_default(&m->event);
95 sd_event_set_watchdog(m->event, true);
104 void manager_free(Manager *m) {
114 while ((session = hashmap_first(m->sessions)))
115 session_free(session);
117 while ((u = hashmap_first(m->users)))
120 while ((d = hashmap_first(m->devices)))
123 while ((s = hashmap_first(m->seats)))
126 while ((i = hashmap_first(m->inhibitors)))
129 while ((b = hashmap_first(m->buttons)))
132 hashmap_free(m->devices);
133 hashmap_free(m->seats);
134 hashmap_free(m->sessions);
135 hashmap_free(m->users);
136 hashmap_free(m->inhibitors);
137 hashmap_free(m->buttons);
139 hashmap_free(m->user_units);
140 hashmap_free(m->session_units);
142 set_free_free(m->busnames);
144 sd_event_source_unref(m->idle_action_event_source);
146 sd_event_source_unref(m->console_active_event_source);
147 sd_event_source_unref(m->udev_seat_event_source);
148 sd_event_source_unref(m->udev_device_event_source);
149 sd_event_source_unref(m->udev_vcsa_event_source);
150 sd_event_source_unref(m->udev_button_event_source);
151 sd_event_source_unref(m->lid_switch_ignore_event_source);
153 safe_close(m->console_active_fd);
155 if (m->udev_seat_monitor)
156 udev_monitor_unref(m->udev_seat_monitor);
157 if (m->udev_device_monitor)
158 udev_monitor_unref(m->udev_device_monitor);
159 if (m->udev_vcsa_monitor)
160 udev_monitor_unref(m->udev_vcsa_monitor);
161 if (m->udev_button_monitor)
162 udev_monitor_unref(m->udev_button_monitor);
167 bus_verify_polkit_async_registry_free(m->polkit_registry);
169 sd_bus_unref(m->bus);
170 sd_event_unref(m->event);
172 safe_close(m->reserve_vt_fd);
174 strv_free(m->kill_only_users);
175 strv_free(m->kill_exclude_users);
181 static int manager_enumerate_devices(Manager *m) {
182 struct udev_list_entry *item = NULL, *first = NULL;
183 _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
188 /* Loads devices from udev and creates seats for them as
191 e = udev_enumerate_new(m->udev);
195 r = udev_enumerate_add_match_tag(e, "master-of-seat");
199 r = udev_enumerate_add_match_is_initialized(e);
203 r = udev_enumerate_scan_devices(e);
207 first = udev_enumerate_get_list_entry(e);
208 udev_list_entry_foreach(item, first) {
209 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
212 d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item));
216 k = manager_process_seat_device(m, d);
224 static int manager_enumerate_buttons(Manager *m) {
225 _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
226 struct udev_list_entry *item = NULL, *first = NULL;
231 /* Loads buttons from udev */
233 if (m->handle_power_key == HANDLE_IGNORE &&
234 m->handle_suspend_key == HANDLE_IGNORE &&
235 m->handle_hibernate_key == HANDLE_IGNORE &&
236 m->handle_lid_switch == HANDLE_IGNORE &&
237 m->handle_lid_switch_docked == HANDLE_IGNORE)
240 e = udev_enumerate_new(m->udev);
244 r = udev_enumerate_add_match_subsystem(e, "input");
248 r = udev_enumerate_add_match_tag(e, "power-switch");
252 r = udev_enumerate_add_match_is_initialized(e);
256 r = udev_enumerate_scan_devices(e);
260 first = udev_enumerate_get_list_entry(e);
261 udev_list_entry_foreach(item, first) {
262 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
265 d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item));
269 k = manager_process_button_device(m, d);
277 static int manager_enumerate_seats(Manager *m) {
278 _cleanup_closedir_ DIR *d = NULL;
284 /* This loads data about seats stored on disk, but does not
285 * actually create any seats. Removes data of seats that no
288 d = opendir("/run/systemd/seats");
293 log_error("Failed to open /run/systemd/seats: %m");
297 FOREACH_DIRENT(de, d, return -errno) {
301 if (!dirent_is_file(de))
304 s = hashmap_get(m->seats, de->d_name);
306 unlinkat(dirfd(d), de->d_name, 0);
318 static int manager_enumerate_linger_users(Manager *m) {
319 _cleanup_closedir_ DIR *d = NULL;
325 d = opendir("/var/lib/systemd/linger");
330 log_error("Failed to open /var/lib/systemd/linger/: %m");
334 FOREACH_DIRENT(de, d, return -errno) {
337 if (!dirent_is_file(de))
340 k = manager_add_user_by_name(m, de->d_name, NULL);
342 log_notice("Couldn't add lingering user %s: %s", de->d_name, strerror(-k));
350 static int manager_enumerate_users(Manager *m) {
351 _cleanup_closedir_ DIR *d = NULL;
357 /* Add lingering users */
358 r = manager_enumerate_linger_users(m);
360 /* Read in user data stored on disk */
361 d = opendir("/run/systemd/users");
366 log_error("Failed to open /run/systemd/users: %m");
370 FOREACH_DIRENT(de, d, return -errno) {
373 if (!dirent_is_file(de))
376 k = manager_add_user_by_name(m, de->d_name, &u);
378 log_error("Failed to add user by file name %s: %s", de->d_name, strerror(-k));
384 user_add_to_gc_queue(u);
394 static int manager_enumerate_sessions(Manager *m) {
395 _cleanup_closedir_ DIR *d = NULL;
401 /* Read in session data stored on disk */
402 d = opendir("/run/systemd/sessions");
407 log_error("Failed to open /run/systemd/sessions: %m");
411 FOREACH_DIRENT(de, d, return -errno) {
415 if (!dirent_is_file(de))
418 if (!session_id_valid(de->d_name)) {
419 log_warning("Invalid session file name '%s', ignoring.", de->d_name);
424 k = manager_add_session(m, de->d_name, &s);
426 log_error("Failed to add session by file name %s: %s", de->d_name, strerror(-k));
432 session_add_to_gc_queue(s);
442 static int manager_enumerate_inhibitors(Manager *m) {
443 _cleanup_closedir_ DIR *d = NULL;
449 d = opendir("/run/systemd/inhibit");
454 log_error("Failed to open /run/systemd/inhibit: %m");
458 FOREACH_DIRENT(de, d, return -errno) {
462 if (!dirent_is_file(de))
465 k = manager_add_inhibitor(m, de->d_name, &i);
467 log_notice("Couldn't add inhibitor %s: %s", de->d_name, strerror(-k));
472 k = inhibitor_load(i);
480 static int manager_dispatch_seat_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
481 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
482 Manager *m = userdata;
486 d = udev_monitor_receive_device(m->udev_seat_monitor);
490 manager_process_seat_device(m, d);
494 static int manager_dispatch_device_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
495 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
496 Manager *m = userdata;
500 d = udev_monitor_receive_device(m->udev_device_monitor);
504 manager_process_seat_device(m, d);
508 static int manager_dispatch_vcsa_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
509 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
510 Manager *m = userdata;
515 d = udev_monitor_receive_device(m->udev_vcsa_monitor);
519 name = udev_device_get_sysname(d);
521 /* Whenever a VCSA device is removed try to reallocate our
522 * VTs, to make sure our auto VTs never go away. */
524 if (name && startswith(name, "vcsa") && streq_ptr(udev_device_get_action(d), "remove"))
525 seat_preallocate_vts(m->seat0);
530 static int manager_dispatch_button_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
531 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
532 Manager *m = userdata;
536 d = udev_monitor_receive_device(m->udev_button_monitor);
540 manager_process_button_device(m, d);
544 static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
545 Manager *m = userdata;
549 assert(m->console_active_fd == fd);
551 seat_read_active_vt(m->seat0);
555 static int manager_reserve_vt(Manager *m) {
556 _cleanup_free_ char *p = NULL;
560 if (m->reserve_vt <= 0)
563 if (asprintf(&p, "/dev/tty%u", m->reserve_vt) < 0)
566 m->reserve_vt_fd = open(p, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
567 if (m->reserve_vt_fd < 0) {
569 /* Don't complain on VT-less systems */
571 log_warning("Failed to pin reserved VT: %m");
578 static int manager_connect_bus(Manager *m) {
579 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
585 r = sd_bus_default_system(&m->bus);
587 log_error("Failed to connect to system bus: %s", strerror(-r));
591 r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/login1", "org.freedesktop.login1.Manager", manager_vtable, m);
593 log_error("Failed to add manager object vtable: %s", strerror(-r));
597 r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/seat", "org.freedesktop.login1.Seat", seat_vtable, seat_object_find, m);
599 log_error("Failed to add seat object vtable: %s", strerror(-r));
603 r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/seat", seat_node_enumerator, m);
605 log_error("Failed to add seat enumerator: %s", strerror(-r));
609 r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/session", "org.freedesktop.login1.Session", session_vtable, session_object_find, m);
611 log_error("Failed to add session object vtable: %s", strerror(-r));
615 r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/session", session_node_enumerator, m);
617 log_error("Failed to add session enumerator: %s", strerror(-r));
621 r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/user", "org.freedesktop.login1.User", user_vtable, user_object_find, m);
623 log_error("Failed to add user object vtable: %s", strerror(-r));
627 r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/user", user_node_enumerator, m);
629 log_error("Failed to add user enumerator: %s", strerror(-r));
633 r = sd_bus_add_match(m->bus,
636 "sender='org.freedesktop.DBus',"
637 "interface='org.freedesktop.DBus',"
638 "member='NameOwnerChanged',"
639 "path='/org/freedesktop/DBus'",
640 match_name_owner_changed, m);
642 log_error("Failed to add match for NameOwnerChanged: %s", strerror(-r));
646 r = sd_bus_add_match(m->bus,
649 "sender='org.freedesktop.systemd1',"
650 "interface='org.freedesktop.systemd1.Manager',"
651 "member='JobRemoved',"
652 "path='/org/freedesktop/systemd1'",
653 match_job_removed, m);
655 log_error("Failed to add match for JobRemoved: %s", strerror(-r));
659 r = sd_bus_add_match(m->bus,
662 "sender='org.freedesktop.systemd1',"
663 "interface='org.freedesktop.systemd1.Manager',"
664 "member='UnitRemoved',"
665 "path='/org/freedesktop/systemd1'",
666 match_unit_removed, m);
668 log_error("Failed to add match for UnitRemoved: %s", strerror(-r));
672 r = sd_bus_add_match(m->bus,
675 "sender='org.freedesktop.systemd1',"
676 "interface='org.freedesktop.DBus.Properties',"
677 "member='PropertiesChanged'",
678 match_properties_changed, m);
680 log_error("Failed to add match for PropertiesChanged: %s", strerror(-r));
684 r = sd_bus_add_match(m->bus,
687 "sender='org.freedesktop.systemd1',"
688 "interface='org.freedesktop.systemd1.Manager',"
689 "member='Reloading',"
690 "path='/org/freedesktop/systemd1'",
693 log_error("Failed to add match for Reloading: %s", strerror(-r));
697 r = sd_bus_call_method(
699 "org.freedesktop.systemd1",
700 "/org/freedesktop/systemd1",
701 "org.freedesktop.systemd1.Manager",
706 log_error("Failed to enable subscription: %s", bus_error_message(&error, r));
710 r = sd_bus_request_name(m->bus, "org.freedesktop.login1", 0);
712 log_error("Failed to register name: %s", strerror(-r));
716 r = sd_bus_attach_event(m->bus, m->event, 0);
718 log_error("Failed to attach bus to event loop: %s", strerror(-r));
725 static int manager_vt_switch(sd_event_source *src, const struct signalfd_siginfo *si, void *data) {
727 Session *active, *iter;
730 * We got a VT-switch signal and we have to acknowledge it immediately.
731 * Preferably, we'd just use m->seat0->active->vtfd, but unfortunately,
732 * old user-space might run multiple sessions on a single VT, *sigh*.
733 * Therefore, we have to iterate all sessions and find one with a vtfd
734 * on the requested VT.
735 * As only VTs with active controllers have VT_PROCESS set, our current
736 * notion of the active VT might be wrong (for instance if the switch
737 * happens while we setup VT_PROCESS). Therefore, read the current VT
738 * first and then use s->active->vtnr as reference. Note that this is
739 * not racy, as no further VT-switch can happen as long as we're in
740 * synchronous VT_PROCESS mode.
744 seat_read_active_vt(m->seat0);
746 active = m->seat0->active;
747 if (!active || active->vtnr < 1) {
748 log_warning("Received VT_PROCESS signal without a registered session on that VT.");
752 if (active->vtfd >= 0) {
753 session_leave_vt(active);
755 LIST_FOREACH(sessions_by_seat, iter, m->seat0->sessions) {
756 if (iter->vtnr == active->vtnr && iter->vtfd >= 0) {
757 session_leave_vt(iter);
766 static int manager_connect_console(Manager *m) {
770 assert(m->console_active_fd < 0);
772 /* On certain architectures (S390 and Xen, and containers),
773 /dev/tty0 does not exist, so don't fail if we can't open
775 if (access("/dev/tty0", F_OK) < 0)
778 m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC);
779 if (m->console_active_fd < 0) {
781 /* On some systems the device node /dev/tty0 may exist
782 * even though /sys/class/tty/tty0 does not. */
786 log_error("Failed to open /sys/class/tty/tty0/active: %m");
790 r = sd_event_add_io(m->event, &m->console_active_event_source, m->console_active_fd, 0, manager_dispatch_console, m);
792 log_error("Failed to watch foreground console");
797 * SIGRTMIN is used as global VT-release signal, SIGRTMIN + 1 is used
798 * as VT-acquire signal. We ignore any acquire-events (yes, we still
799 * have to provide a valid signal-number for it!) and acknowledge all
800 * release events immediately.
803 if (SIGRTMIN + 1 > SIGRTMAX) {
804 log_error("Not enough real-time signals available: %u-%u", SIGRTMIN, SIGRTMAX);
808 r = ignore_signals(SIGRTMIN + 1, -1);
810 log_error("Cannot ignore SIGRTMIN + 1: %s", strerror(-r));
814 r = sigprocmask_many(SIG_BLOCK, SIGRTMIN, -1);
816 log_error("Cannot block SIGRTMIN: %s", strerror(-r));
820 r = sd_event_add_signal(m->event, NULL, SIGRTMIN, manager_vt_switch, m);
827 static int manager_connect_udev(Manager *m) {
831 assert(!m->udev_seat_monitor);
832 assert(!m->udev_device_monitor);
833 assert(!m->udev_vcsa_monitor);
834 assert(!m->udev_button_monitor);
836 m->udev_seat_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
837 if (!m->udev_seat_monitor)
840 r = udev_monitor_filter_add_match_tag(m->udev_seat_monitor, "master-of-seat");
844 r = udev_monitor_enable_receiving(m->udev_seat_monitor);
848 r = sd_event_add_io(m->event, &m->udev_seat_event_source, udev_monitor_get_fd(m->udev_seat_monitor), EPOLLIN, manager_dispatch_seat_udev, m);
852 m->udev_device_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
853 if (!m->udev_device_monitor)
856 r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "input", NULL);
860 r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "graphics", NULL);
864 r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "drm", NULL);
868 r = udev_monitor_enable_receiving(m->udev_device_monitor);
872 r = sd_event_add_io(m->event, &m->udev_device_event_source, udev_monitor_get_fd(m->udev_device_monitor), EPOLLIN, manager_dispatch_device_udev, m);
876 /* Don't watch keys if nobody cares */
877 if (m->handle_power_key != HANDLE_IGNORE ||
878 m->handle_suspend_key != HANDLE_IGNORE ||
879 m->handle_hibernate_key != HANDLE_IGNORE ||
880 m->handle_lid_switch != HANDLE_IGNORE ||
881 m->handle_lid_switch_docked != HANDLE_IGNORE) {
883 m->udev_button_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
884 if (!m->udev_button_monitor)
887 r = udev_monitor_filter_add_match_tag(m->udev_button_monitor, "power-switch");
891 r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_button_monitor, "input", NULL);
895 r = udev_monitor_enable_receiving(m->udev_button_monitor);
899 r = sd_event_add_io(m->event, &m->udev_button_event_source, udev_monitor_get_fd(m->udev_button_monitor), EPOLLIN, manager_dispatch_button_udev, m);
904 /* Don't bother watching VCSA devices, if nobody cares */
905 if (m->n_autovts > 0 && m->console_active_fd >= 0) {
907 m->udev_vcsa_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
908 if (!m->udev_vcsa_monitor)
911 r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_vcsa_monitor, "vc", NULL);
915 r = udev_monitor_enable_receiving(m->udev_vcsa_monitor);
919 r = sd_event_add_io(m->event, &m->udev_vcsa_event_source, udev_monitor_get_fd(m->udev_vcsa_monitor), EPOLLIN, manager_dispatch_vcsa_udev, m);
927 void manager_gc(Manager *m, bool drop_not_started) {
934 while ((seat = m->seat_gc_queue)) {
935 LIST_REMOVE(gc_queue, m->seat_gc_queue, seat);
936 seat->in_gc_queue = false;
938 if (!seat_check_gc(seat, drop_not_started)) {
939 seat_stop(seat, false);
944 while ((session = m->session_gc_queue)) {
945 LIST_REMOVE(gc_queue, m->session_gc_queue, session);
946 session->in_gc_queue = false;
948 /* First, if we are not closing yet, initiate stopping */
949 if (!session_check_gc(session, drop_not_started) &&
950 session_get_state(session) != SESSION_CLOSING)
951 session_stop(session, false);
953 /* Normally, this should make the session busy again,
954 * if it doesn't then let's get rid of it
956 if (!session_check_gc(session, drop_not_started)) {
957 session_finalize(session);
958 session_free(session);
962 while ((user = m->user_gc_queue)) {
963 LIST_REMOVE(gc_queue, m->user_gc_queue, user);
964 user->in_gc_queue = false;
966 /* First step: queue stop jobs */
967 if (!user_check_gc(user, drop_not_started))
968 user_stop(user, false);
970 /* Second step: finalize user */
971 if (!user_check_gc(user, drop_not_started)) {
978 static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *userdata) {
979 Manager *m = userdata;
980 struct dual_timestamp since;
986 if (m->idle_action == HANDLE_IGNORE ||
987 m->idle_action_usec <= 0)
990 n = now(CLOCK_MONOTONIC);
992 r = manager_get_idle_hint(m, &since);
994 /* Not idle. Let's check if after a timeout it might be idle then. */
995 elapse = n + m->idle_action_usec;
997 /* Idle! Let's see if it's time to do something, or if
998 * we shall sleep for longer. */
1000 if (n >= since.monotonic + m->idle_action_usec &&
1001 (m->idle_action_not_before_usec <= 0 || n >= m->idle_action_not_before_usec + m->idle_action_usec)) {
1002 log_info("System idle. Taking action.");
1004 manager_handle_action(m, 0, m->idle_action, false, false);
1005 m->idle_action_not_before_usec = n;
1008 elapse = MAX(since.monotonic, m->idle_action_not_before_usec) + m->idle_action_usec;
1011 if (!m->idle_action_event_source) {
1013 r = sd_event_add_time(
1015 &m->idle_action_event_source,
1017 elapse, USEC_PER_SEC*30,
1018 manager_dispatch_idle_action, m);
1020 log_error("Failed to add idle event source: %s", strerror(-r));
1024 r = sd_event_source_set_priority(m->idle_action_event_source, SD_EVENT_PRIORITY_IDLE+10);
1026 log_error("Failed to set idle event source priority: %s", strerror(-r));
1030 r = sd_event_source_set_time(m->idle_action_event_source, elapse);
1032 log_error("Failed to set idle event timer: %s", strerror(-r));
1036 r = sd_event_source_set_enabled(m->idle_action_event_source, SD_EVENT_ONESHOT);
1038 log_error("Failed to enable idle event timer: %s", strerror(-r));
1046 int manager_startup(Manager *m) {
1052 Inhibitor *inhibitor;
1057 /* Connect to console */
1058 r = manager_connect_console(m);
1062 /* Connect to udev */
1063 r = manager_connect_udev(m);
1065 log_error("Failed to create udev watchers: %s", strerror(-r));
1069 /* Connect to the bus */
1070 r = manager_connect_bus(m);
1074 /* Instantiate magic seat 0 */
1075 r = manager_add_seat(m, "seat0", &m->seat0);
1077 log_error("Failed to add seat0: %s", strerror(-r));
1081 r = manager_set_lid_switch_ignore(m, 0 + IGNORE_LID_SWITCH_STARTUP_USEC);
1083 log_warning("Failed to set up lid switch ignore event source: %s", strerror(-r));
1085 /* Deserialize state */
1086 r = manager_enumerate_devices(m);
1088 log_warning("Device enumeration failed: %s", strerror(-r));
1090 r = manager_enumerate_seats(m);
1092 log_warning("Seat enumeration failed: %s", strerror(-r));
1094 r = manager_enumerate_users(m);
1096 log_warning("User enumeration failed: %s", strerror(-r));
1098 r = manager_enumerate_sessions(m);
1100 log_warning("Session enumeration failed: %s", strerror(-r));
1102 r = manager_enumerate_inhibitors(m);
1104 log_warning("Inhibitor enumeration failed: %s", strerror(-r));
1106 r = manager_enumerate_buttons(m);
1108 log_warning("Button enumeration failed: %s", strerror(-r));
1110 /* Remove stale objects before we start them */
1111 manager_gc(m, false);
1113 /* Reserve the special reserved VT */
1114 manager_reserve_vt(m);
1116 /* And start everything */
1117 HASHMAP_FOREACH(seat, m->seats, i)
1120 HASHMAP_FOREACH(user, m->users, i)
1123 HASHMAP_FOREACH(session, m->sessions, i)
1124 session_start(session);
1126 HASHMAP_FOREACH(inhibitor, m->inhibitors, i)
1127 inhibitor_start(inhibitor);
1129 HASHMAP_FOREACH(button, m->buttons, i)
1130 button_check_switches(button);
1132 manager_dispatch_idle_action(NULL, 0, m);
1137 int manager_run(Manager *m) {
1143 usec_t us = (uint64_t) -1;
1145 r = sd_event_get_state(m->event);
1148 if (r == SD_EVENT_FINISHED)
1151 manager_gc(m, true);
1153 if (manager_dispatch_delayed(m) > 0)
1156 if (m->action_what != 0 && !m->action_job) {
1159 x = now(CLOCK_MONOTONIC);
1160 y = m->action_timestamp + m->inhibit_delay_max;
1162 us = x >= y ? 0 : y - x;
1165 r = sd_event_run(m->event, us);
1171 static int manager_parse_config_file(Manager *m) {
1174 return config_parse(NULL, "/etc/systemd/logind.conf", NULL,
1176 config_item_perf_lookup, logind_gperf_lookup,
1177 false, false, true, m);
1180 int main(int argc, char *argv[]) {
1184 log_set_target(LOG_TARGET_AUTO);
1185 log_set_facility(LOG_AUTH);
1186 log_parse_environment();
1192 log_error("This program takes no arguments.");
1197 /* Always create the directories people can create inotify
1198 * watches in. Note that some applications might check for the
1199 * existence of /run/systemd/seats/ to determine whether
1200 * logind is available, so please always make sure this check
1202 mkdir_label("/run/systemd/seats", 0755);
1203 mkdir_label("/run/systemd/users", 0755);
1204 mkdir_label("/run/systemd/sessions", 0755);
1212 manager_parse_config_file(m);
1214 r = manager_startup(m);
1216 log_error("Failed to fully start up daemon: %s", strerror(-r));
1220 log_debug("systemd-logind running as pid "PID_FMT, getpid());
1224 "STATUS=Processing requests...");
1228 log_debug("systemd-logind stopped as pid "PID_FMT, getpid());
1233 "STATUS=Shutting down...");
1238 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;