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;
52 m->inhibit_delay_max = 5 * USEC_PER_SEC;
53 m->handle_power_key = HANDLE_POWEROFF;
54 m->handle_suspend_key = HANDLE_SUSPEND;
55 m->handle_hibernate_key = HANDLE_HIBERNATE;
56 m->handle_lid_switch = HANDLE_SUSPEND;
57 m->lid_switch_ignore_inhibited = true;
59 m->idle_action_usec = 30 * USEC_PER_MINUTE;
60 m->idle_action = HANDLE_IGNORE;
61 m->idle_action_not_before_usec = now(CLOCK_MONOTONIC);
63 m->runtime_dir_size = PAGE_ALIGN((size_t) (physical_memory() / 10)); /* 10% */
65 m->devices = hashmap_new(string_hash_func, string_compare_func);
66 m->seats = hashmap_new(string_hash_func, string_compare_func);
67 m->sessions = hashmap_new(string_hash_func, string_compare_func);
68 m->users = hashmap_new(trivial_hash_func, trivial_compare_func);
69 m->inhibitors = hashmap_new(string_hash_func, string_compare_func);
70 m->buttons = hashmap_new(string_hash_func, string_compare_func);
72 m->user_units = hashmap_new(string_hash_func, string_compare_func);
73 m->session_units = hashmap_new(string_hash_func, string_compare_func);
75 m->busnames = set_new(string_hash_func, string_compare_func);
77 if (!m->devices || !m->seats || !m->sessions || !m->users || !m->inhibitors || !m->buttons || !m->busnames ||
78 !m->user_units || !m->session_units)
81 m->kill_exclude_users = strv_new("root", NULL);
82 if (!m->kill_exclude_users)
89 r = sd_event_default(&m->event);
93 sd_event_set_watchdog(m->event, true);
102 void manager_free(Manager *m) {
112 while ((session = hashmap_first(m->sessions)))
113 session_free(session);
115 while ((u = hashmap_first(m->users)))
118 while ((d = hashmap_first(m->devices)))
121 while ((s = hashmap_first(m->seats)))
124 while ((i = hashmap_first(m->inhibitors)))
127 while ((b = hashmap_first(m->buttons)))
130 hashmap_free(m->devices);
131 hashmap_free(m->seats);
132 hashmap_free(m->sessions);
133 hashmap_free(m->users);
134 hashmap_free(m->inhibitors);
135 hashmap_free(m->buttons);
137 hashmap_free(m->user_units);
138 hashmap_free(m->session_units);
140 set_free_free(m->busnames);
142 sd_event_source_unref(m->idle_action_event_source);
144 sd_event_source_unref(m->console_active_event_source);
145 sd_event_source_unref(m->udev_seat_event_source);
146 sd_event_source_unref(m->udev_device_event_source);
147 sd_event_source_unref(m->udev_vcsa_event_source);
148 sd_event_source_unref(m->udev_button_event_source);
149 sd_event_source_unref(m->lid_switch_ignore_event_source);
151 if (m->console_active_fd >= 0)
152 close_nointr_nofail(m->console_active_fd);
154 if (m->udev_seat_monitor)
155 udev_monitor_unref(m->udev_seat_monitor);
156 if (m->udev_device_monitor)
157 udev_monitor_unref(m->udev_device_monitor);
158 if (m->udev_vcsa_monitor)
159 udev_monitor_unref(m->udev_vcsa_monitor);
160 if (m->udev_button_monitor)
161 udev_monitor_unref(m->udev_button_monitor);
166 bus_verify_polkit_async_registry_free(m->bus, m->polkit_registry);
168 sd_bus_unref(m->bus);
169 sd_event_unref(m->event);
171 if (m->reserve_vt_fd >= 0)
172 close_nointr_nofail(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)
239 e = udev_enumerate_new(m->udev);
243 r = udev_enumerate_add_match_subsystem(e, "input");
247 r = udev_enumerate_add_match_tag(e, "power-switch");
251 r = udev_enumerate_add_match_is_initialized(e);
255 r = udev_enumerate_scan_devices(e);
259 first = udev_enumerate_get_list_entry(e);
260 udev_list_entry_foreach(item, first) {
261 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
264 d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item));
268 k = manager_process_button_device(m, d);
276 static int manager_enumerate_seats(Manager *m) {
277 _cleanup_closedir_ DIR *d = NULL;
283 /* This loads data about seats stored on disk, but does not
284 * actually create any seats. Removes data of seats that no
287 d = opendir("/run/systemd/seats");
292 log_error("Failed to open /run/systemd/seats: %m");
296 FOREACH_DIRENT(de, d, return -errno) {
300 if (!dirent_is_file(de))
303 s = hashmap_get(m->seats, de->d_name);
305 unlinkat(dirfd(d), de->d_name, 0);
317 static int manager_enumerate_linger_users(Manager *m) {
318 _cleanup_closedir_ DIR *d = NULL;
324 d = opendir("/var/lib/systemd/linger");
329 log_error("Failed to open /var/lib/systemd/linger/: %m");
333 FOREACH_DIRENT(de, d, return -errno) {
336 if (!dirent_is_file(de))
339 k = manager_add_user_by_name(m, de->d_name, NULL);
341 log_notice("Couldn't add lingering user %s: %s", de->d_name, strerror(-k));
349 static int manager_enumerate_users(Manager *m) {
350 _cleanup_closedir_ DIR *d = NULL;
356 /* Add lingering users */
357 r = manager_enumerate_linger_users(m);
359 /* Read in user data stored on disk */
360 d = opendir("/run/systemd/users");
365 log_error("Failed to open /run/systemd/users: %m");
369 FOREACH_DIRENT(de, d, return -errno) {
372 if (!dirent_is_file(de))
375 k = manager_add_user_by_name(m, de->d_name, &u);
377 log_error("Failed to add user by file name %s: %s", de->d_name, strerror(-k));
383 user_add_to_gc_queue(u);
393 static int manager_enumerate_sessions(Manager *m) {
394 _cleanup_closedir_ DIR *d = NULL;
400 /* Read in session data stored on disk */
401 d = opendir("/run/systemd/sessions");
406 log_error("Failed to open /run/systemd/sessions: %m");
410 FOREACH_DIRENT(de, d, return -errno) {
414 if (!dirent_is_file(de))
417 if (!session_id_valid(de->d_name)) {
418 log_warning("Invalid session file name '%s', ignoring.", de->d_name);
423 k = manager_add_session(m, de->d_name, &s);
425 log_error("Failed to add session by file name %s: %s", de->d_name, strerror(-k));
431 session_add_to_gc_queue(s);
441 static int manager_enumerate_inhibitors(Manager *m) {
442 _cleanup_closedir_ DIR *d = NULL;
448 d = opendir("/run/systemd/inhibit");
453 log_error("Failed to open /run/systemd/inhibit: %m");
457 FOREACH_DIRENT(de, d, return -errno) {
461 if (!dirent_is_file(de))
464 k = manager_add_inhibitor(m, de->d_name, &i);
466 log_notice("Couldn't add inhibitor %s: %s", de->d_name, strerror(-k));
471 k = inhibitor_load(i);
479 static int manager_dispatch_seat_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
480 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
481 Manager *m = userdata;
485 d = udev_monitor_receive_device(m->udev_seat_monitor);
489 manager_process_seat_device(m, d);
493 static int manager_dispatch_device_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
494 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
495 Manager *m = userdata;
499 d = udev_monitor_receive_device(m->udev_device_monitor);
503 manager_process_seat_device(m, d);
507 static int manager_dispatch_vcsa_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
508 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
509 Manager *m = userdata;
514 d = udev_monitor_receive_device(m->udev_vcsa_monitor);
518 name = udev_device_get_sysname(d);
520 /* Whenever a VCSA device is removed try to reallocate our
521 * VTs, to make sure our auto VTs never go away. */
523 if (name && startswith(name, "vcsa") && streq_ptr(udev_device_get_action(d), "remove"))
524 seat_preallocate_vts(m->seat0);
529 static int manager_dispatch_button_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
530 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
531 Manager *m = userdata;
535 d = udev_monitor_receive_device(m->udev_button_monitor);
539 manager_process_button_device(m, d);
543 static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
544 Manager *m = userdata;
548 assert(m->console_active_fd == fd);
550 seat_read_active_vt(m->seat0);
554 static int manager_reserve_vt(Manager *m) {
555 _cleanup_free_ char *p = NULL;
559 if (m->reserve_vt <= 0)
562 if (asprintf(&p, "/dev/tty%u", m->reserve_vt) < 0)
565 m->reserve_vt_fd = open(p, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
566 if (m->reserve_vt_fd < 0) {
568 /* Don't complain on VT-less systems */
570 log_warning("Failed to pin reserved VT: %m");
577 static int manager_connect_bus(Manager *m) {
578 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
584 r = sd_bus_default_system(&m->bus);
586 log_error("Failed to connect to system bus: %s", strerror(-r));
590 r = sd_bus_add_object_vtable(m->bus, "/org/freedesktop/login1", "org.freedesktop.login1.Manager", manager_vtable, m);
592 log_error("Failed to add manager object vtable: %s", strerror(-r));
596 r = sd_bus_add_fallback_vtable(m->bus, "/org/freedesktop/login1/seat", "org.freedesktop.login1.Seat", seat_vtable, seat_object_find, m);
598 log_error("Failed to add seat object vtable: %s", strerror(-r));
602 r = sd_bus_add_node_enumerator(m->bus, "/org/freedesktop/login1/seat", seat_node_enumerator, m);
604 log_error("Failed to add seat enumerator: %s", strerror(-r));
608 r = sd_bus_add_fallback_vtable(m->bus, "/org/freedesktop/login1/session", "org.freedesktop.login1.Session", session_vtable, session_object_find, m);
610 log_error("Failed to add session object vtable: %s", strerror(-r));
614 r = sd_bus_add_node_enumerator(m->bus, "/org/freedesktop/login1/session", session_node_enumerator, m);
616 log_error("Failed to add session enumerator: %s", strerror(-r));
620 r = sd_bus_add_fallback_vtable(m->bus, "/org/freedesktop/login1/user", "org.freedesktop.login1.User", user_vtable, user_object_find, m);
622 log_error("Failed to add user object vtable: %s", strerror(-r));
626 r = sd_bus_add_node_enumerator(m->bus, "/org/freedesktop/login1/user", user_node_enumerator, m);
628 log_error("Failed to add user enumerator: %s", strerror(-r));
632 r = sd_bus_add_match(m->bus,
634 "sender='org.freedesktop.DBus',"
635 "interface='org.freedesktop.DBus',"
636 "member='NameOwnerChanged',"
637 "path='/org/freedesktop/DBus'",
638 match_name_owner_changed, m);
640 log_error("Failed to add match for NameOwnerChanged: %s", strerror(-r));
644 r = sd_bus_add_match(m->bus,
646 "sender='org.freedesktop.systemd1',"
647 "interface='org.freedesktop.systemd1.Manager',"
648 "member='JobRemoved',"
649 "path='/org/freedesktop/systemd1'",
650 match_job_removed, m);
652 log_error("Failed to add match for JobRemoved: %s", strerror(-r));
656 r = sd_bus_add_match(m->bus,
658 "sender='org.freedesktop.systemd1',"
659 "interface='org.freedesktop.systemd1.Manager',"
660 "member='UnitRemoved',"
661 "path='/org/freedesktop/systemd1'",
662 match_unit_removed, m);
664 log_error("Failed to add match for UnitRemoved: %s", strerror(-r));
668 r = sd_bus_add_match(m->bus,
670 "sender='org.freedesktop.systemd1',"
671 "interface='org.freedesktop.DBus.Properties',"
672 "member='PropertiesChanged'",
673 match_properties_changed, m);
675 log_error("Failed to add match for PropertiesChanged: %s", strerror(-r));
679 r = sd_bus_add_match(m->bus,
681 "sender='org.freedesktop.systemd1',"
682 "interface='org.freedesktop.systemd1.Manager',"
683 "member='Reloading',"
684 "path='/org/freedesktop/systemd1'",
687 log_error("Failed to add match for Reloading: %s", strerror(-r));
691 r = sd_bus_call_method(
693 "org.freedesktop.systemd1",
694 "/org/freedesktop/systemd1",
695 "org.freedesktop.systemd1.Manager",
700 log_error("Failed to enable subscription: %s", bus_error_message(&error, r));
704 r = sd_bus_request_name(m->bus, "org.freedesktop.login1", 0);
706 log_error("Failed to register name: %s", strerror(-r));
710 r = sd_bus_attach_event(m->bus, m->event, 0);
712 log_error("Failed to attach bus to event loop: %s", strerror(-r));
719 static int manager_connect_console(Manager *m) {
723 assert(m->console_active_fd < 0);
725 /* On certain architectures (S390 and Xen, and containers),
726 /dev/tty0 does not exist, so don't fail if we can't open
728 if (access("/dev/tty0", F_OK) < 0)
731 m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC);
732 if (m->console_active_fd < 0) {
734 /* On some systems the device node /dev/tty0 may exist
735 * even though /sys/class/tty/tty0 does not. */
739 log_error("Failed to open /sys/class/tty/tty0/active: %m");
743 r = sd_event_add_io(m->event, &m->console_active_event_source, m->console_active_fd, 0, manager_dispatch_console, m);
745 log_error("Failed to watch foreground console");
752 static int manager_connect_udev(Manager *m) {
756 assert(!m->udev_seat_monitor);
757 assert(!m->udev_device_monitor);
758 assert(!m->udev_vcsa_monitor);
759 assert(!m->udev_button_monitor);
761 m->udev_seat_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
762 if (!m->udev_seat_monitor)
765 r = udev_monitor_filter_add_match_tag(m->udev_seat_monitor, "master-of-seat");
769 r = udev_monitor_enable_receiving(m->udev_seat_monitor);
773 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);
777 m->udev_device_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
778 if (!m->udev_device_monitor)
781 r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "input", NULL);
785 r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "graphics", NULL);
789 r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "drm", NULL);
793 r = udev_monitor_enable_receiving(m->udev_device_monitor);
797 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);
801 /* Don't watch keys if nobody cares */
802 if (m->handle_power_key != HANDLE_IGNORE ||
803 m->handle_suspend_key != HANDLE_IGNORE ||
804 m->handle_hibernate_key != HANDLE_IGNORE ||
805 m->handle_lid_switch != HANDLE_IGNORE) {
807 m->udev_button_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
808 if (!m->udev_button_monitor)
811 r = udev_monitor_filter_add_match_tag(m->udev_button_monitor, "power-switch");
815 r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_button_monitor, "input", NULL);
819 r = udev_monitor_enable_receiving(m->udev_button_monitor);
823 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);
828 /* Don't bother watching VCSA devices, if nobody cares */
829 if (m->n_autovts > 0 && m->console_active_fd >= 0) {
831 m->udev_vcsa_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
832 if (!m->udev_vcsa_monitor)
835 r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_vcsa_monitor, "vc", NULL);
839 r = udev_monitor_enable_receiving(m->udev_vcsa_monitor);
843 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);
851 void manager_gc(Manager *m, bool drop_not_started) {
858 while ((seat = m->seat_gc_queue)) {
859 LIST_REMOVE(gc_queue, m->seat_gc_queue, seat);
860 seat->in_gc_queue = false;
862 if (!seat_check_gc(seat, drop_not_started)) {
863 seat_stop(seat, false);
868 while ((session = m->session_gc_queue)) {
869 LIST_REMOVE(gc_queue, m->session_gc_queue, session);
870 session->in_gc_queue = false;
872 /* First, if we are not closing yet, initiate stopping */
873 if (!session_check_gc(session, drop_not_started) &&
874 session_get_state(session) != SESSION_CLOSING)
875 session_stop(session, false);
877 /* Normally, this should make the session busy again,
878 * if it doesn't then let's get rid of it
880 if (!session_check_gc(session, drop_not_started)) {
881 session_finalize(session);
882 session_free(session);
886 while ((user = m->user_gc_queue)) {
887 LIST_REMOVE(gc_queue, m->user_gc_queue, user);
888 user->in_gc_queue = false;
890 /* First step: queue stop jobs */
891 if (!user_check_gc(user, drop_not_started))
892 user_stop(user, false);
894 /* Second step: finalize user */
895 if (!user_check_gc(user, drop_not_started)) {
902 static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *userdata) {
903 Manager *m = userdata;
904 struct dual_timestamp since;
910 if (m->idle_action == HANDLE_IGNORE ||
911 m->idle_action_usec <= 0)
914 n = now(CLOCK_MONOTONIC);
916 r = manager_get_idle_hint(m, &since);
918 /* Not idle. Let's check if after a timeout it might be idle then. */
919 elapse = n + m->idle_action_usec;
921 /* Idle! Let's see if it's time to do something, or if
922 * we shall sleep for longer. */
924 if (n >= since.monotonic + m->idle_action_usec &&
925 (m->idle_action_not_before_usec <= 0 || n >= m->idle_action_not_before_usec + m->idle_action_usec)) {
926 log_info("System idle. Taking action.");
928 manager_handle_action(m, 0, m->idle_action, false, false);
929 m->idle_action_not_before_usec = n;
932 elapse = MAX(since.monotonic, m->idle_action_not_before_usec) + m->idle_action_usec;
935 if (!m->idle_action_event_source) {
937 r = sd_event_add_monotonic(m->event, &m->idle_action_event_source, elapse, USEC_PER_SEC*30, manager_dispatch_idle_action, m);
939 log_error("Failed to add idle event source: %s", strerror(-r));
943 r = sd_event_source_set_priority(m->idle_action_event_source, SD_EVENT_PRIORITY_IDLE+10);
945 log_error("Failed to set idle event source priority: %s", strerror(-r));
949 r = sd_event_source_set_time(m->idle_action_event_source, elapse);
951 log_error("Failed to set idle event timer: %s", strerror(-r));
955 r = sd_event_source_set_enabled(m->idle_action_event_source, SD_EVENT_ONESHOT);
957 log_error("Failed to enable idle event timer: %s", strerror(-r));
965 static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) {
966 Manager *m = userdata;
971 m->lid_switch_ignore_event_source = sd_event_source_unref(m->lid_switch_ignore_event_source);
975 int manager_set_lid_switch_ignore(Manager *m, usec_t until) {
980 if (until <= now(CLOCK_MONOTONIC))
983 /* We want to ignore the lid switch for a while after each
984 * suspend, and after boot-up. Hence let's install a timer for
985 * this. As long as the event source exists we ignore the lid
988 if (m->lid_switch_ignore_event_source) {
991 r = sd_event_source_get_time(m->lid_switch_ignore_event_source, &u);
998 r = sd_event_source_set_time(m->lid_switch_ignore_event_source, until);
1000 r = sd_event_add_monotonic(m->event, &m->lid_switch_ignore_event_source, until, 0, lid_switch_ignore_handler, m);
1005 int manager_startup(Manager *m) {
1011 Inhibitor *inhibitor;
1016 /* Connect to console */
1017 r = manager_connect_console(m);
1021 /* Connect to udev */
1022 r = manager_connect_udev(m);
1024 log_error("Failed to create udev watchers: %s", strerror(-r));
1028 /* Connect to the bus */
1029 r = manager_connect_bus(m);
1033 /* Instantiate magic seat 0 */
1034 r = manager_add_seat(m, "seat0", &m->seat0);
1036 log_error("Failed to add seat0: %s", strerror(-r));
1040 r = manager_set_lid_switch_ignore(m, 0 + IGNORE_LID_SWITCH_STARTUP_USEC);
1042 log_warning("Failed to set up lid switch ignore event source: %s", strerror(-r));
1044 /* Deserialize state */
1045 r = manager_enumerate_devices(m);
1047 log_warning("Device enumeration failed: %s", strerror(-r));
1049 r = manager_enumerate_seats(m);
1051 log_warning("Seat enumeration failed: %s", strerror(-r));
1053 r = manager_enumerate_users(m);
1055 log_warning("User enumeration failed: %s", strerror(-r));
1057 r = manager_enumerate_sessions(m);
1059 log_warning("Session enumeration failed: %s", strerror(-r));
1061 r = manager_enumerate_inhibitors(m);
1063 log_warning("Inhibitor enumeration failed: %s", strerror(-r));
1065 r = manager_enumerate_buttons(m);
1067 log_warning("Button enumeration failed: %s", strerror(-r));
1069 /* Remove stale objects before we start them */
1070 manager_gc(m, false);
1072 /* Reserve the special reserved VT */
1073 manager_reserve_vt(m);
1075 /* And start everything */
1076 HASHMAP_FOREACH(seat, m->seats, i)
1079 HASHMAP_FOREACH(user, m->users, i)
1082 HASHMAP_FOREACH(session, m->sessions, i)
1083 session_start(session);
1085 HASHMAP_FOREACH(inhibitor, m->inhibitors, i)
1086 inhibitor_start(inhibitor);
1088 HASHMAP_FOREACH(button, m->buttons, i)
1089 button_check_switches(button);
1091 manager_dispatch_idle_action(NULL, 0, m);
1096 int manager_run(Manager *m) {
1102 usec_t us = (uint64_t) -1;
1104 r = sd_event_get_state(m->event);
1107 if (r == SD_EVENT_FINISHED)
1110 manager_gc(m, true);
1112 if (manager_dispatch_delayed(m) > 0)
1115 if (m->action_what != 0 && !m->action_job) {
1118 x = now(CLOCK_MONOTONIC);
1119 y = m->action_timestamp + m->inhibit_delay_max;
1121 us = x >= y ? 0 : y - x;
1124 r = sd_event_run(m->event, us);
1130 static int manager_parse_config_file(Manager *m) {
1131 static const char fn[] = "/etc/systemd/logind.conf";
1132 _cleanup_fclose_ FILE *f = NULL;
1137 f = fopen(fn, "re");
1139 if (errno == ENOENT)
1142 log_warning("Failed to open configuration file %s: %m", fn);
1146 r = config_parse(NULL, fn, f, "Login\0", config_item_perf_lookup,
1147 (void*) logind_gperf_lookup, false, false, m);
1149 log_warning("Failed to parse configuration file: %s", strerror(-r));
1154 int main(int argc, char *argv[]) {
1158 log_set_target(LOG_TARGET_AUTO);
1159 log_set_facility(LOG_AUTH);
1160 log_parse_environment();
1166 log_error("This program takes no arguments.");
1171 /* Always create the directories people can create inotify
1172 * watches in. Note that some applications might check for the
1173 * existence of /run/systemd/seats/ to determine whether
1174 * logind is available, so please always make sure this check
1176 mkdir_label("/run/systemd/seats", 0755);
1177 mkdir_label("/run/systemd/users", 0755);
1178 mkdir_label("/run/systemd/sessions", 0755);
1186 manager_parse_config_file(m);
1188 r = manager_startup(m);
1190 log_error("Failed to fully start up daemon: %s", strerror(-r));
1194 log_debug("systemd-logind running as pid %lu", (unsigned long) getpid());
1198 "STATUS=Processing requests...");
1202 log_debug("systemd-logind stopped as pid %lu", (unsigned long) getpid());
1206 "STATUS=Shutting down...");
1211 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;