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/>.
26 #include <sys/capability.h>
29 #include "sd-messages.h"
32 #include "path-util.h"
34 #include "sleep-config.h"
35 #include "fileio-label.h"
38 #include "unit-name.h"
42 #include "bus-error.h"
44 #include "bus-errors.h"
45 #include "udev-util.h"
47 static int property_get_idle_hint(
50 const char *interface,
52 sd_bus_message *reply,
54 sd_bus_error *error) {
56 Manager *m = userdata;
62 return sd_bus_message_append(reply, "b", manager_get_idle_hint(m, NULL) > 0);
65 static int property_get_idle_since_hint(
68 const char *interface,
70 sd_bus_message *reply,
72 sd_bus_error *error) {
74 Manager *m = userdata;
81 manager_get_idle_hint(m, &t);
83 return sd_bus_message_append(reply, "t", streq(property, "IdleSinceHint") ? t.realtime : t.monotonic);
86 static int property_get_inhibited(
89 const char *interface,
91 sd_bus_message *reply,
93 sd_bus_error *error) {
95 Manager *m = userdata;
102 w = manager_inhibit_what(m, streq(property, "BlockInhibited") ? INHIBIT_BLOCK : INHIBIT_DELAY);
104 return sd_bus_message_append(reply, "s", inhibit_what_to_string(w));
107 static int property_get_preparing(
110 const char *interface,
111 const char *property,
112 sd_bus_message *reply,
114 sd_bus_error *error) {
116 Manager *m = userdata;
123 if (streq(property, "PreparingForShutdown"))
124 b = !!(m->action_what & INHIBIT_SHUTDOWN);
126 b = !!(m->action_what & INHIBIT_SLEEP);
128 return sd_bus_message_append(reply, "b", b);
131 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_handle_action, handle_action, HandleAction);
133 static int method_get_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
134 _cleanup_free_ char *p = NULL;
135 Manager *m = userdata;
144 r = sd_bus_message_read(message, "s", &name);
148 session = hashmap_get(m->sessions, name);
150 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
152 p = session_bus_path(session);
156 return sd_bus_reply_method_return(message, "o", p);
159 static int method_get_session_by_pid(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
160 _cleanup_free_ char *p = NULL;
161 Session *session = NULL;
162 Manager *m = userdata;
170 assert_cc(sizeof(pid_t) == sizeof(uint32_t));
172 r = sd_bus_message_read(message, "u", &pid);
177 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
179 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
183 r = sd_bus_creds_get_pid(creds, &pid);
188 r = manager_get_session_by_pid(m, pid, &session);
192 return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID, "PID %lu does not belong to any known session", (unsigned long) pid);
194 p = session_bus_path(session);
198 return sd_bus_reply_method_return(message, "o", p);
201 static int method_get_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
202 _cleanup_free_ char *p = NULL;
203 Manager *m = userdata;
212 r = sd_bus_message_read(message, "u", &uid);
216 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
218 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user '%lu' known or logged in", (unsigned long) uid);
220 p = user_bus_path(user);
224 return sd_bus_reply_method_return(message, "o", p);
227 static int method_get_user_by_pid(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
228 _cleanup_free_ char *p = NULL;
229 Manager *m = userdata;
238 assert_cc(sizeof(pid_t) == sizeof(uint32_t));
240 r = sd_bus_message_read(message, "u", &pid);
245 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
247 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
251 r = sd_bus_creds_get_pid(creds, &pid);
256 r = manager_get_user_by_pid(m, pid, &user);
260 return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID, "PID %lu does not belong to any known or logged in user", (unsigned long) pid);
262 p = user_bus_path(user);
266 return sd_bus_reply_method_return(message, "o", p);
269 static int method_get_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
270 _cleanup_free_ char *p = NULL;
271 Manager *m = userdata;
280 r = sd_bus_message_read(message, "s", &name);
284 seat = hashmap_get(m->seats, name);
286 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name);
288 p = seat_bus_path(seat);
292 return sd_bus_reply_method_return(message, "o", p);
295 static int method_list_sessions(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
296 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
297 Manager *m = userdata;
306 r = sd_bus_message_new_method_return(message, &reply);
310 r = sd_bus_message_open_container(reply, 'a', "(susso)");
314 HASHMAP_FOREACH(session, m->sessions, i) {
315 _cleanup_free_ char *p = NULL;
317 p = session_bus_path(session);
321 r = sd_bus_message_append(reply, "(susso)",
323 (uint32_t) session->user->uid,
325 session->seat ? session->seat->id : "",
331 r = sd_bus_message_close_container(reply);
335 return sd_bus_send(bus, reply, NULL);
338 static int method_list_users(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
339 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
340 Manager *m = userdata;
349 r = sd_bus_message_new_method_return(message, &reply);
353 r = sd_bus_message_open_container(reply, 'a', "(uso)");
357 HASHMAP_FOREACH(user, m->users, i) {
358 _cleanup_free_ char *p = NULL;
360 p = user_bus_path(user);
364 r = sd_bus_message_append(reply, "(uso)",
365 (uint32_t) user->uid,
372 r = sd_bus_message_close_container(reply);
376 return sd_bus_send(bus, reply, NULL);
379 static int method_list_seats(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
380 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
381 Manager *m = userdata;
390 r = sd_bus_message_new_method_return(message, &reply);
394 r = sd_bus_message_open_container(reply, 'a', "(so)");
398 HASHMAP_FOREACH(seat, m->seats, i) {
399 _cleanup_free_ char *p = NULL;
401 p = seat_bus_path(seat);
405 r = sd_bus_message_append(reply, "(so)", seat->id, p);
410 r = sd_bus_message_close_container(reply);
414 return sd_bus_send(bus, reply, NULL);
417 static int method_list_inhibitors(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
418 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
419 Manager *m = userdata;
420 Inhibitor *inhibitor;
424 r = sd_bus_message_new_method_return(message, &reply);
428 r = sd_bus_message_open_container(reply, 'a', "(ssssuu)");
432 HASHMAP_FOREACH(inhibitor, m->inhibitors, i) {
434 r = sd_bus_message_append(reply, "(ssssuu)",
435 strempty(inhibit_what_to_string(inhibitor->what)),
436 strempty(inhibitor->who),
437 strempty(inhibitor->why),
438 strempty(inhibit_mode_to_string(inhibitor->mode)),
439 (uint32_t) inhibitor->uid,
440 (uint32_t) inhibitor->pid);
445 r = sd_bus_message_close_container(reply);
449 return sd_bus_send(bus, reply, NULL);
452 static int method_create_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
453 const char *service, *type, *class, *cseat, *tty, *display, *remote_user, *remote_host, *desktop;
454 uint32_t uid, leader, audit_id = 0;
455 _cleanup_free_ char *id = NULL;
456 Session *session = NULL;
457 Manager *m = userdata;
470 r = sd_bus_message_read(message, "uusssssussbss", &uid, &leader, &service, &type, &class, &desktop, &cseat, &vtnr, &tty, &display, &remote, &remote_user, &remote_host);
475 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID");
478 t = _SESSION_TYPE_INVALID;
480 t = session_type_from_string(type);
482 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session type %s", type);
486 c = _SESSION_CLASS_INVALID;
488 c = session_class_from_string(class);
490 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session class %s", class);
493 if (isempty(desktop))
496 if (!string_is_safe(desktop))
497 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid desktop string %s", desktop);
503 seat = hashmap_get(m->seats, cseat);
505 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", cseat);
508 if (tty_is_vc(tty)) {
513 else if (seat != m->seat0)
514 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "TTY %s is virtual console but seat %s is not seat0", tty, seat->id);
516 v = vtnr_from_tty(tty);
518 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot determine VT number from virtual console TTY %s", tty);
522 else if (vtnr != (uint32_t) v)
523 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Specified TTY and VT number do not match");
525 } else if (tty_is_console(tty)) {
529 else if (seat != m->seat0)
530 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but seat is not seat0");
533 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but VT number is not 0");
537 if (seat_has_vts(seat)) {
538 if (!vtnr || vtnr > 63)
539 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "VT number out of range");
542 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat has no VTs but VT number not 0");
546 r = sd_bus_message_enter_container(message, 'a', "(sv)");
550 if (t == _SESSION_TYPE_INVALID) {
551 if (!isempty(display))
553 else if (!isempty(tty))
556 t = SESSION_UNSPECIFIED;
559 if (c == _SESSION_CLASS_INVALID) {
560 if (t == SESSION_UNSPECIFIED)
561 c = SESSION_BACKGROUND;
567 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
569 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
573 assert_cc(sizeof(uint32_t) == sizeof(pid_t));
575 r = sd_bus_creds_get_pid(creds, (pid_t*) &leader);
580 manager_get_session_by_pid(m, leader, &session);
582 _cleanup_free_ char *path = NULL;
583 _cleanup_close_ int fifo_fd = -1;
585 /* Session already exists, client is probably
586 * something like "su" which changes uid but is still
587 * the same session */
589 fifo_fd = session_create_fifo(session);
593 path = session_bus_path(session);
597 log_debug("Sending reply about an existing session: "
598 "id=%s object_path=%s uid=%u runtime_path=%s "
599 "session_fd=%d seat=%s vtnr=%u",
602 (uint32_t) session->user->uid,
603 session->user->runtime_path,
605 session->seat ? session->seat->id : "",
606 (uint32_t) session->vtnr);
608 return sd_bus_reply_method_return(
612 session->user->runtime_path,
614 (uint32_t) session->user->uid,
615 session->seat ? session->seat->id : "",
616 (uint32_t) session->vtnr,
620 audit_session_from_pid(leader, &audit_id);
622 /* Keep our session IDs and the audit session IDs in sync */
624 if (asprintf(&id, "%lu", (unsigned long) audit_id) < 0)
627 /* Wut? There's already a session by this name and we
628 * didn't find it above? Weird, then let's not trust
629 * the audit data and let's better register a new
631 if (hashmap_get(m->sessions, id)) {
632 log_warning("Existing logind session ID %s used by new audit session, ignoring", id);
645 if (asprintf(&id, "c%lu", ++m->session_counter) < 0)
648 } while (hashmap_get(m->sessions, id));
651 r = manager_add_user_by_uid(m, uid, &user);
655 r = manager_add_session(m, id, &session);
659 session_set_user(session, user);
661 session->leader = leader;
662 session->audit_id = audit_id;
665 session->remote = remote;
666 session->vtnr = vtnr;
669 session->tty = strdup(tty);
676 if (!isempty(display)) {
677 session->display = strdup(display);
678 if (!session->display) {
684 if (!isempty(remote_user)) {
685 session->remote_user = strdup(remote_user);
686 if (!session->remote_user) {
692 if (!isempty(remote_host)) {
693 session->remote_host = strdup(remote_host);
694 if (!session->remote_host) {
700 if (!isempty(service)) {
701 session->service = strdup(service);
702 if (!session->service) {
708 if (!isempty(desktop)) {
709 session->desktop = strdup(desktop);
710 if (!session->desktop) {
717 r = seat_attach_session(seat, session);
722 r = session_start(session);
726 session->create_message = sd_bus_message_ref(message);
728 /* Now, let's wait until the slice unit and stuff got
729 * created. We send the reply back from
730 * session_send_create_reply().*/
736 session_add_to_gc_queue(session);
739 user_add_to_gc_queue(user);
744 static int method_release_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
745 Manager *m = userdata;
754 r = sd_bus_message_read(message, "s", &name);
758 session = hashmap_get(m->sessions, name);
760 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
762 session_release(session);
764 return sd_bus_reply_method_return(message, NULL);
767 static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
768 Manager *m = userdata;
777 r = sd_bus_message_read(message, "s", &name);
781 session = hashmap_get(m->sessions, name);
783 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
785 r = session_activate(session);
789 return sd_bus_reply_method_return(message, NULL);
792 static int method_activate_session_on_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
793 const char *session_name, *seat_name;
794 Manager *m = userdata;
803 /* Same as ActivateSession() but refuses to work if
804 * the seat doesn't match */
806 r = sd_bus_message_read(message, "ss", &session_name, &seat_name);
810 session = hashmap_get(m->sessions, session_name);
812 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", session_name);
814 seat = hashmap_get(m->seats, seat_name);
816 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", seat_name);
818 if (session->seat != seat)
819 return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", session_name, seat_name);
821 r = session_activate(session);
825 return sd_bus_reply_method_return(message, NULL);
828 static int method_lock_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
829 Manager *m = userdata;
838 r = sd_bus_message_read(message, "s", &name);
842 session = hashmap_get(m->sessions, name);
844 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
846 r = session_send_lock(session, streq(sd_bus_message_get_member(message), "LockSession"));
850 return sd_bus_reply_method_return(message, NULL);
853 static int method_lock_sessions(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
854 Manager *m = userdata;
861 r = session_send_lock_all(m, streq(sd_bus_message_get_member(message), "LockSessions"));
865 return sd_bus_reply_method_return(message, NULL);
868 static int method_kill_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
869 const char *name, *swho;
870 Manager *m = userdata;
880 r = sd_bus_message_read(message, "ssi", &name, &swho, &signo);
887 who = kill_who_from_string(swho);
889 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho);
892 if (signo <= 0 || signo >= _NSIG)
893 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);
895 session = hashmap_get(m->sessions, name);
897 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
899 r = session_kill(session, who, signo);
903 return sd_bus_reply_method_return(message, NULL);
906 static int method_kill_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
907 Manager *m = userdata;
917 r = sd_bus_message_read(message, "ui", &uid, &signo);
921 if (signo <= 0 || signo >= _NSIG)
922 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);
924 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
926 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user '%lu' known or logged in", (unsigned long) uid);
928 r = user_kill(user, signo);
932 return sd_bus_reply_method_return(message, NULL);
935 static int method_terminate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
936 Manager *m = userdata;
945 r = sd_bus_message_read(message, "s", &name);
949 session = hashmap_get(m->sessions, name);
951 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
953 r = session_stop(session, true);
957 return sd_bus_reply_method_return(message, NULL);
960 static int method_terminate_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
961 Manager *m = userdata;
970 r = sd_bus_message_read(message, "u", &uid);
974 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
976 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user '%lu' known or logged in", (unsigned long) uid);
978 r = user_stop(user, true);
982 return sd_bus_reply_method_return(message, NULL);
985 static int method_terminate_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
986 Manager *m = userdata;
995 r = sd_bus_message_read(message, "s", &name);
999 seat = hashmap_get(m->seats, name);
1001 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name);
1003 r = seat_stop_sessions(seat, true);
1007 return sd_bus_reply_method_return(message, NULL);
1010 static int method_set_user_linger(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1011 _cleanup_free_ char *cc = NULL;
1012 Manager *m = userdata;
1023 r = sd_bus_message_read(message, "ubb", &uid, &b, &interactive);
1030 return errno ? -errno : -ENOENT;
1032 r = bus_verify_polkit_async(bus,
1033 &m->polkit_registry,
1035 "org.freedesktop.login1.set-user-linger",
1038 method_set_user_linger, m);
1042 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1044 mkdir_p_label("/var/lib/systemd", 0755);
1046 r = mkdir_safe_label("/var/lib/systemd/linger", 0755, 0, 0);
1050 cc = cescape(pw->pw_name);
1054 path = strappenda("/var/lib/systemd/linger/", cc);
1062 if (manager_add_user_by_uid(m, uid, &u) >= 0)
1069 if (r < 0 && errno != ENOENT)
1072 u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1074 user_add_to_gc_queue(u);
1077 return sd_bus_reply_method_return(message, NULL);
1080 static int trigger_device(Manager *m, struct udev_device *d) {
1081 _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
1082 struct udev_list_entry *first, *item;
1087 e = udev_enumerate_new(m->udev);
1092 r = udev_enumerate_add_match_parent(e, d);
1097 r = udev_enumerate_scan_devices(e);
1101 first = udev_enumerate_get_list_entry(e);
1102 udev_list_entry_foreach(item, first) {
1103 _cleanup_free_ char *t = NULL;
1106 p = udev_list_entry_get_name(item);
1108 t = strappend(p, "/uevent");
1112 write_string_file(t, "change");
1118 static int attach_device(Manager *m, const char *seat, const char *sysfs) {
1119 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
1120 _cleanup_free_ char *rule = NULL, *file = NULL;
1121 const char *id_for_seat;
1128 d = udev_device_new_from_syspath(m->udev, sysfs);
1132 if (!udev_device_has_tag(d, "seat"))
1135 id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT");
1139 if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0)
1142 if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0)
1145 mkdir_p_label("/etc/udev/rules.d", 0755);
1147 r = write_string_file_atomic_label(file, rule);
1151 return trigger_device(m, d);
1154 static int flush_devices(Manager *m) {
1155 _cleanup_closedir_ DIR *d;
1159 d = opendir("/etc/udev/rules.d");
1161 if (errno != ENOENT)
1162 log_warning("Failed to open /etc/udev/rules.d: %m");
1166 while ((de = readdir(d))) {
1168 if (!dirent_is_file(de))
1171 if (!startswith(de->d_name, "72-seat-"))
1174 if (!endswith(de->d_name, ".rules"))
1177 if (unlinkat(dirfd(d), de->d_name, 0) < 0)
1178 log_warning("Failed to unlink %s: %m", de->d_name);
1182 return trigger_device(m, NULL);
1185 static int method_attach_device(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1186 const char *sysfs, *seat;
1187 Manager *m = userdata;
1194 r = sd_bus_message_read(message, "ssb", &seat, &sysfs, &interactive);
1198 if (!path_startswith(sysfs, "/sys"))
1199 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not in /sys", sysfs);
1201 if (!seat_name_is_valid(seat))
1202 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat %s is not valid", seat);
1204 r = bus_verify_polkit_async(bus,
1205 &m->polkit_registry,
1207 "org.freedesktop.login1.attach-device",
1210 method_attach_device, m);
1214 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1216 r = attach_device(m, seat, sysfs);
1220 return sd_bus_reply_method_return(message, NULL);
1223 static int method_flush_devices(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1224 Manager *m = userdata;
1231 r = sd_bus_message_read(message, "b", &interactive);
1235 r = bus_verify_polkit_async(bus,
1236 &m->polkit_registry,
1238 "org.freedesktop.login1.flush-devices",
1241 method_flush_devices, m);
1245 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1247 r = flush_devices(m);
1251 return sd_bus_reply_method_return(message, NULL);
1254 static int have_multiple_sessions(
1263 /* Check for other users' sessions. Greeter sessions do not
1264 * count, and non-login sessions do not count either. */
1265 HASHMAP_FOREACH(session, m->sessions, i)
1266 if (session->class == SESSION_USER &&
1267 session->user->uid != uid)
1273 static int bus_manager_log_shutdown(
1276 const char *unit_name) {
1283 if (w != INHIBIT_SHUTDOWN)
1286 if (streq(unit_name, SPECIAL_POWEROFF_TARGET)) {
1287 p = "MESSAGE=System is powering down.";
1288 q = "SHUTDOWN=power-off";
1289 } else if (streq(unit_name, SPECIAL_HALT_TARGET)) {
1290 p = "MESSAGE=System is halting.";
1291 q = "SHUTDOWN=halt";
1292 } else if (streq(unit_name, SPECIAL_REBOOT_TARGET)) {
1293 p = "MESSAGE=System is rebooting.";
1294 q = "SHUTDOWN=reboot";
1295 } else if (streq(unit_name, SPECIAL_KEXEC_TARGET)) {
1296 p = "MESSAGE=System is rebooting with kexec.";
1297 q = "SHUTDOWN=kexec";
1299 p = "MESSAGE=System is shutting down.";
1303 return log_struct(LOG_NOTICE, MESSAGE_ID(SD_MESSAGE_SHUTDOWN),
1308 static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) {
1309 Manager *m = userdata;
1314 m->lid_switch_ignore_event_source = sd_event_source_unref(m->lid_switch_ignore_event_source);
1318 int manager_set_lid_switch_ignore(Manager *m, usec_t until) {
1323 if (until <= now(CLOCK_MONOTONIC))
1326 /* We want to ignore the lid switch for a while after each
1327 * suspend, and after boot-up. Hence let's install a timer for
1328 * this. As long as the event source exists we ignore the lid
1331 if (m->lid_switch_ignore_event_source) {
1334 r = sd_event_source_get_time(m->lid_switch_ignore_event_source, &u);
1341 r = sd_event_source_set_time(m->lid_switch_ignore_event_source, until);
1343 r = sd_event_add_time(
1345 &m->lid_switch_ignore_event_source,
1348 lid_switch_ignore_handler, m);
1353 static int execute_shutdown_or_sleep(
1356 const char *unit_name,
1357 sd_bus_error *error) {
1359 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1366 assert(w < _INHIBIT_WHAT_MAX);
1369 bus_manager_log_shutdown(m, w, unit_name);
1371 r = sd_bus_call_method(
1373 "org.freedesktop.systemd1",
1374 "/org/freedesktop/systemd1",
1375 "org.freedesktop.systemd1.Manager",
1379 "ss", unit_name, "replace-irreversibly");
1383 r = sd_bus_message_read(reply, "o", &p);
1391 m->action_unit = unit_name;
1392 free(m->action_job);
1396 /* Make sure the lid switch is ignored for a while */
1397 manager_set_lid_switch_ignore(m, now(CLOCK_MONOTONIC) + IGNORE_LID_SWITCH_SUSPEND_USEC);
1402 static int delay_shutdown_or_sleep(
1405 const char *unit_name) {
1409 assert(w < _INHIBIT_WHAT_MAX);
1412 m->action_timestamp = now(CLOCK_MONOTONIC);
1413 m->action_unit = unit_name;
1419 static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) {
1421 static const char * const signal_name[_INHIBIT_WHAT_MAX] = {
1422 [INHIBIT_SHUTDOWN] = "PrepareForShutdown",
1423 [INHIBIT_SLEEP] = "PrepareForSleep"
1426 int active = _active;
1430 assert(w < _INHIBIT_WHAT_MAX);
1431 assert(signal_name[w]);
1433 return sd_bus_emit_signal(m->bus,
1434 "/org/freedesktop/login1",
1435 "org.freedesktop.login1.Manager",
1441 int bus_manager_shutdown_or_sleep_now_or_later(
1443 const char *unit_name,
1445 sd_bus_error *error) {
1453 assert(w <= _INHIBIT_WHAT_MAX);
1454 assert(!m->action_job);
1456 /* Tell everybody to prepare for shutdown/sleep */
1457 send_prepare_for(m, w, true);
1460 m->inhibit_delay_max > 0 &&
1461 manager_is_inhibited(m, w, INHIBIT_DELAY, NULL, false, false, 0, NULL);
1464 /* Shutdown is delayed, keep in mind what we
1465 * want to do, and start a timeout */
1466 r = delay_shutdown_or_sleep(m, w, unit_name);
1468 /* Shutdown is not delayed, execute it
1470 r = execute_shutdown_or_sleep(m, w, unit_name, error);
1475 static int method_do_shutdown_or_sleep(
1477 sd_bus_message *message,
1478 const char *unit_name,
1481 const char *action_multiple_sessions,
1482 const char *action_ignore_inhibit,
1483 const char *sleep_verb,
1484 sd_bus_message_handler_t method,
1485 sd_bus_error *error) {
1487 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
1488 bool multiple_sessions, blocked;
1496 assert(w <= _INHIBIT_WHAT_MAX);
1498 assert(action_multiple_sessions);
1499 assert(action_ignore_inhibit);
1502 r = sd_bus_message_read(message, "b", &interactive);
1506 /* Don't allow multiple jobs being executed at the same time */
1508 return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "There's already a shutdown or sleep operation in progress");
1511 r = can_sleep(sleep_verb);
1516 return sd_bus_error_setf(error, BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED, "Sleep verb not supported");
1519 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID, &creds);
1523 r = sd_bus_creds_get_uid(creds, &uid);
1527 r = have_multiple_sessions(m, uid);
1531 multiple_sessions = r > 0;
1532 blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
1534 if (multiple_sessions) {
1535 r = bus_verify_polkit_async(m->bus, &m->polkit_registry, message,
1536 action_multiple_sessions, interactive, error, method, m);
1540 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1544 r = bus_verify_polkit_async(m->bus, &m->polkit_registry, message,
1545 action_ignore_inhibit, interactive, error, method, m);
1549 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1552 if (!multiple_sessions && !blocked) {
1553 r = bus_verify_polkit_async(m->bus, &m->polkit_registry, message,
1554 action, interactive, error, method, m);
1558 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1561 r = bus_manager_shutdown_or_sleep_now_or_later(m, unit_name, w, error);
1565 return sd_bus_reply_method_return(message, NULL);
1568 static int method_poweroff(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1569 Manager *m = userdata;
1571 return method_do_shutdown_or_sleep(
1573 SPECIAL_POWEROFF_TARGET,
1575 "org.freedesktop.login1.power-off",
1576 "org.freedesktop.login1.power-off-multiple-sessions",
1577 "org.freedesktop.login1.power-off-ignore-inhibit",
1583 static int method_reboot(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1584 Manager *m = userdata;
1586 return method_do_shutdown_or_sleep(
1588 SPECIAL_REBOOT_TARGET,
1590 "org.freedesktop.login1.reboot",
1591 "org.freedesktop.login1.reboot-multiple-sessions",
1592 "org.freedesktop.login1.reboot-ignore-inhibit",
1598 static int method_suspend(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1599 Manager *m = userdata;
1601 return method_do_shutdown_or_sleep(
1603 SPECIAL_SUSPEND_TARGET,
1605 "org.freedesktop.login1.suspend",
1606 "org.freedesktop.login1.suspend-multiple-sessions",
1607 "org.freedesktop.login1.suspend-ignore-inhibit",
1613 static int method_hibernate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1614 Manager *m = userdata;
1616 return method_do_shutdown_or_sleep(
1618 SPECIAL_HIBERNATE_TARGET,
1620 "org.freedesktop.login1.hibernate",
1621 "org.freedesktop.login1.hibernate-multiple-sessions",
1622 "org.freedesktop.login1.hibernate-ignore-inhibit",
1628 static int method_hybrid_sleep(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1629 Manager *m = userdata;
1631 return method_do_shutdown_or_sleep(
1633 SPECIAL_HYBRID_SLEEP_TARGET,
1635 "org.freedesktop.login1.hibernate",
1636 "org.freedesktop.login1.hibernate-multiple-sessions",
1637 "org.freedesktop.login1.hibernate-ignore-inhibit",
1639 method_hybrid_sleep,
1643 static int method_can_shutdown_or_sleep(
1645 sd_bus_message *message,
1648 const char *action_multiple_sessions,
1649 const char *action_ignore_inhibit,
1650 const char *sleep_verb,
1651 sd_bus_error *error) {
1653 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
1654 bool multiple_sessions, challenge, blocked;
1655 const char *result = NULL;
1662 assert(w <= _INHIBIT_WHAT_MAX);
1664 assert(action_multiple_sessions);
1665 assert(action_ignore_inhibit);
1668 r = can_sleep(sleep_verb);
1672 return sd_bus_reply_method_return(message, "s", "na");
1675 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID, &creds);
1679 r = sd_bus_creds_get_uid(creds, &uid);
1683 r = have_multiple_sessions(m, uid);
1687 multiple_sessions = r > 0;
1688 blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
1690 if (multiple_sessions) {
1691 r = bus_verify_polkit(m->bus, message, action_multiple_sessions, false, &challenge, error);
1698 result = "challenge";
1704 r = bus_verify_polkit(m->bus, message, action_ignore_inhibit, false, &challenge, error);
1708 if (r > 0 && !result)
1710 else if (challenge && (!result || streq(result, "yes")))
1711 result = "challenge";
1716 if (!multiple_sessions && !blocked) {
1717 /* If neither inhibit nor multiple sessions
1718 * apply then just check the normal policy */
1720 r = bus_verify_polkit(m->bus, message, action, false, &challenge, error);
1727 result = "challenge";
1732 return sd_bus_reply_method_return(message, "s", result);
1735 static int method_can_poweroff(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1736 Manager *m = userdata;
1738 return method_can_shutdown_or_sleep(
1741 "org.freedesktop.login1.power-off",
1742 "org.freedesktop.login1.power-off-multiple-sessions",
1743 "org.freedesktop.login1.power-off-ignore-inhibit",
1748 static int method_can_reboot(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1749 Manager *m = userdata;
1751 return method_can_shutdown_or_sleep(
1754 "org.freedesktop.login1.reboot",
1755 "org.freedesktop.login1.reboot-multiple-sessions",
1756 "org.freedesktop.login1.reboot-ignore-inhibit",
1761 static int method_can_suspend(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1762 Manager *m = userdata;
1764 return method_can_shutdown_or_sleep(
1767 "org.freedesktop.login1.suspend",
1768 "org.freedesktop.login1.suspend-multiple-sessions",
1769 "org.freedesktop.login1.suspend-ignore-inhibit",
1774 static int method_can_hibernate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1775 Manager *m = userdata;
1777 return method_can_shutdown_or_sleep(
1780 "org.freedesktop.login1.hibernate",
1781 "org.freedesktop.login1.hibernate-multiple-sessions",
1782 "org.freedesktop.login1.hibernate-ignore-inhibit",
1787 static int method_can_hybrid_sleep(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1788 Manager *m = userdata;
1790 return method_can_shutdown_or_sleep(
1793 "org.freedesktop.login1.hibernate",
1794 "org.freedesktop.login1.hibernate-multiple-sessions",
1795 "org.freedesktop.login1.hibernate-ignore-inhibit",
1800 static int method_inhibit(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1801 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
1802 const char *who, *why, *what, *mode;
1803 _cleanup_free_ char *id = NULL;
1804 _cleanup_close_ int fifo_fd = -1;
1805 Manager *m = userdata;
1806 Inhibitor *i = NULL;
1817 r = sd_bus_message_read(message, "ssss", &what, &who, &why, &mode);
1821 w = inhibit_what_from_string(what);
1823 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid what specification %s", what);
1825 mm = inhibit_mode_from_string(mode);
1827 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid mode specification %s", mode);
1829 /* Delay is only supported for shutdown/sleep */
1830 if (mm == INHIBIT_DELAY && (w & ~(INHIBIT_SHUTDOWN|INHIBIT_SLEEP)))
1831 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Delay inhibitors only supported for shutdown and sleep");
1833 /* Don't allow taking delay locks while we are already
1834 * executing the operation. We shouldn't create the impression
1835 * that the lock was successful if the machine is about to go
1836 * down/suspend any moment. */
1837 if (m->action_what & w)
1838 return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "The operation inhibition has been requested for is already running");
1840 r = bus_verify_polkit_async(bus, &m->polkit_registry, message,
1841 w == INHIBIT_SHUTDOWN ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-shutdown" : "org.freedesktop.login1.inhibit-delay-shutdown") :
1842 w == INHIBIT_SLEEP ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-sleep" : "org.freedesktop.login1.inhibit-delay-sleep") :
1843 w == INHIBIT_IDLE ? "org.freedesktop.login1.inhibit-block-idle" :
1844 w == INHIBIT_HANDLE_POWER_KEY ? "org.freedesktop.login1.inhibit-handle-power-key" :
1845 w == INHIBIT_HANDLE_SUSPEND_KEY ? "org.freedesktop.login1.inhibit-handle-suspend-key" :
1846 w == INHIBIT_HANDLE_HIBERNATE_KEY ? "org.freedesktop.login1.inhibit-handle-hibernate-key" :
1847 "org.freedesktop.login1.inhibit-handle-lid-switch",
1848 false, error, method_inhibit, m);
1852 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1854 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID|SD_BUS_CREDS_PID, &creds);
1858 r = sd_bus_creds_get_uid(creds, &uid);
1862 r = sd_bus_creds_get_pid(creds, &pid);
1870 if (asprintf(&id, "%lu", ++m->inhibit_counter) < 0)
1873 } while (hashmap_get(m->inhibitors, id));
1875 r = manager_add_inhibitor(m, id, &i);
1883 i->why = strdup(why);
1884 i->who = strdup(who);
1886 if (!i->why || !i->who) {
1891 fifo_fd = inhibitor_create_fifo(i);
1899 return sd_bus_reply_method_return(message, "h", fifo_fd);
1908 const sd_bus_vtable manager_vtable[] = {
1909 SD_BUS_VTABLE_START(0),
1911 SD_BUS_PROPERTY("NAutoVTs", "u", NULL, offsetof(Manager, n_autovts), SD_BUS_VTABLE_PROPERTY_CONST),
1912 SD_BUS_PROPERTY("KillOnlyUsers", "as", NULL, offsetof(Manager, kill_only_users), SD_BUS_VTABLE_PROPERTY_CONST),
1913 SD_BUS_PROPERTY("KillExcludeUsers", "as", NULL, offsetof(Manager, kill_exclude_users), SD_BUS_VTABLE_PROPERTY_CONST),
1914 SD_BUS_PROPERTY("KillUserProcesses", "b", NULL, offsetof(Manager, kill_user_processes), SD_BUS_VTABLE_PROPERTY_CONST),
1915 SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1916 SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1917 SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1918 SD_BUS_PROPERTY("BlockInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1919 SD_BUS_PROPERTY("DelayInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1920 SD_BUS_PROPERTY("InhibitDelayMaxUSec", "t", NULL, offsetof(Manager, inhibit_delay_max), SD_BUS_VTABLE_PROPERTY_CONST),
1921 SD_BUS_PROPERTY("HandlePowerKey", "s", property_get_handle_action, offsetof(Manager, handle_power_key), SD_BUS_VTABLE_PROPERTY_CONST),
1922 SD_BUS_PROPERTY("HandleSuspendKey", "s", property_get_handle_action, offsetof(Manager, handle_suspend_key), SD_BUS_VTABLE_PROPERTY_CONST),
1923 SD_BUS_PROPERTY("HandleHibernateKey", "s", property_get_handle_action, offsetof(Manager, handle_hibernate_key), SD_BUS_VTABLE_PROPERTY_CONST),
1924 SD_BUS_PROPERTY("HandleLidSwitch", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch), SD_BUS_VTABLE_PROPERTY_CONST),
1925 SD_BUS_PROPERTY("IdleAction", "s", property_get_handle_action, offsetof(Manager, idle_action), SD_BUS_VTABLE_PROPERTY_CONST),
1926 SD_BUS_PROPERTY("IdleActionUSec", "t", NULL, offsetof(Manager, idle_action_usec), SD_BUS_VTABLE_PROPERTY_CONST),
1927 SD_BUS_PROPERTY("PreparingForShutdown", "b", property_get_preparing, 0, 0),
1928 SD_BUS_PROPERTY("PreparingForSleep", "b", property_get_preparing, 0, 0),
1930 SD_BUS_METHOD("GetSession", "s", "o", method_get_session, SD_BUS_VTABLE_UNPRIVILEGED),
1931 SD_BUS_METHOD("GetSessionByPID", "u", "o", method_get_session_by_pid, SD_BUS_VTABLE_UNPRIVILEGED),
1932 SD_BUS_METHOD("GetUser", "u", "o", method_get_user, SD_BUS_VTABLE_UNPRIVILEGED),
1933 SD_BUS_METHOD("GetUserByPID", "u", "o", method_get_user_by_pid, SD_BUS_VTABLE_UNPRIVILEGED),
1934 SD_BUS_METHOD("GetSeat", "s", "o", method_get_seat, SD_BUS_VTABLE_UNPRIVILEGED),
1935 SD_BUS_METHOD("ListSessions", NULL, "a(susso)", method_list_sessions, SD_BUS_VTABLE_UNPRIVILEGED),
1936 SD_BUS_METHOD("ListUsers", NULL, "a(uso)", method_list_users, SD_BUS_VTABLE_UNPRIVILEGED),
1937 SD_BUS_METHOD("ListSeats", NULL, "a(so)", method_list_seats, SD_BUS_VTABLE_UNPRIVILEGED),
1938 SD_BUS_METHOD("ListInhibitors", NULL, "a(ssssuu)", method_list_inhibitors, SD_BUS_VTABLE_UNPRIVILEGED),
1939 SD_BUS_METHOD("CreateSession", "uusssssussbssa(sv)", "soshusub", method_create_session, 0),
1940 SD_BUS_METHOD("ReleaseSession", "s", NULL, method_release_session, 0),
1941 SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
1942 SD_BUS_METHOD("ActivateSessionOnSeat", "ss", NULL, method_activate_session_on_seat, SD_BUS_VTABLE_UNPRIVILEGED),
1943 SD_BUS_METHOD("LockSession", "s", NULL, method_lock_session, 0),
1944 SD_BUS_METHOD("UnlockSession", "s", NULL, method_lock_session, 0),
1945 SD_BUS_METHOD("LockSessions", NULL, NULL, method_lock_sessions, 0),
1946 SD_BUS_METHOD("UnlockSessions", NULL, NULL, method_lock_sessions, 0),
1947 SD_BUS_METHOD("KillSession", "ssi", NULL, method_kill_session, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
1948 SD_BUS_METHOD("KillUser", "ui", NULL, method_kill_user, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
1949 SD_BUS_METHOD("TerminateSession", "s", NULL, method_terminate_session, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
1950 SD_BUS_METHOD("TerminateUser", "u", NULL, method_terminate_user, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
1951 SD_BUS_METHOD("TerminateSeat", "s", NULL, method_terminate_seat, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
1952 SD_BUS_METHOD("SetUserLinger", "ubb", NULL, method_set_user_linger, SD_BUS_VTABLE_UNPRIVILEGED),
1953 SD_BUS_METHOD("AttachDevice", "ssb", NULL, method_attach_device, SD_BUS_VTABLE_UNPRIVILEGED),
1954 SD_BUS_METHOD("FlushDevices", "b", NULL, method_flush_devices, SD_BUS_VTABLE_UNPRIVILEGED),
1955 SD_BUS_METHOD("PowerOff", "b", NULL, method_poweroff, SD_BUS_VTABLE_UNPRIVILEGED),
1956 SD_BUS_METHOD("Reboot", "b", NULL, method_reboot, SD_BUS_VTABLE_UNPRIVILEGED),
1957 SD_BUS_METHOD("Suspend", "b", NULL, method_suspend, SD_BUS_VTABLE_UNPRIVILEGED),
1958 SD_BUS_METHOD("Hibernate", "b", NULL, method_hibernate, SD_BUS_VTABLE_UNPRIVILEGED),
1959 SD_BUS_METHOD("HybridSleep", "b", NULL, method_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED),
1960 SD_BUS_METHOD("CanPowerOff", NULL, "s", method_can_poweroff, SD_BUS_VTABLE_UNPRIVILEGED),
1961 SD_BUS_METHOD("CanReboot", NULL, "s", method_can_reboot, SD_BUS_VTABLE_UNPRIVILEGED),
1962 SD_BUS_METHOD("CanSuspend", NULL, "s", method_can_suspend, SD_BUS_VTABLE_UNPRIVILEGED),
1963 SD_BUS_METHOD("CanHibernate", NULL, "s", method_can_hibernate, SD_BUS_VTABLE_UNPRIVILEGED),
1964 SD_BUS_METHOD("CanHybridSleep", NULL, "s", method_can_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED),
1965 SD_BUS_METHOD("Inhibit", "ssss", "h", method_inhibit, SD_BUS_VTABLE_UNPRIVILEGED),
1967 SD_BUS_SIGNAL("SessionNew", "so", 0),
1968 SD_BUS_SIGNAL("SessionRemoved", "so", 0),
1969 SD_BUS_SIGNAL("UserNew", "uo", 0),
1970 SD_BUS_SIGNAL("UserRemoved", "uo", 0),
1971 SD_BUS_SIGNAL("SeatNew", "so", 0),
1972 SD_BUS_SIGNAL("SeatRemoved", "so", 0),
1973 SD_BUS_SIGNAL("PrepareForShutdown", "b", 0),
1974 SD_BUS_SIGNAL("PrepareForSleep", "b", 0),
1979 static int session_jobs_reply(Session *s, const char *unit, const char *result) {
1988 if (streq(result, "done"))
1989 r = session_send_create_reply(s, NULL);
1991 _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL;
1993 sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result);
1994 r = session_send_create_reply(s, &e);
2000 int match_job_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
2001 const char *path, *result, *unit;
2002 Manager *m = userdata;
2012 r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result);
2014 bus_log_parse_error(r);
2018 if (m->action_job && streq(m->action_job, path)) {
2019 log_info("Operation finished.");
2021 /* Tell people that they now may take a lock again */
2022 send_prepare_for(m, m->action_what, false);
2024 free(m->action_job);
2025 m->action_job = NULL;
2026 m->action_unit = NULL;
2031 session = hashmap_get(m->session_units, unit);
2034 if (streq_ptr(path, session->scope_job)) {
2035 free(session->scope_job);
2036 session->scope_job = NULL;
2039 session_jobs_reply(session, unit, result);
2041 session_save(session);
2042 session_add_to_gc_queue(session);
2045 user = hashmap_get(m->user_units, unit);
2048 if (streq_ptr(path, user->service_job)) {
2049 free(user->service_job);
2050 user->service_job = NULL;
2053 if (streq_ptr(path, user->slice_job)) {
2054 free(user->slice_job);
2055 user->slice_job = NULL;
2058 LIST_FOREACH(sessions_by_user, session, user->sessions) {
2059 session_jobs_reply(session, unit, result);
2063 user_add_to_gc_queue(user);
2069 int match_unit_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
2070 const char *path, *unit;
2071 Manager *m = userdata;
2080 r = sd_bus_message_read(message, "so", &unit, &path);
2082 bus_log_parse_error(r);
2086 session = hashmap_get(m->session_units, unit);
2088 session_add_to_gc_queue(session);
2090 user = hashmap_get(m->user_units, unit);
2092 user_add_to_gc_queue(user);
2097 int match_properties_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
2098 _cleanup_free_ char *unit = NULL;
2099 Manager *m = userdata;
2109 path = sd_bus_message_get_path(message);
2113 r = unit_name_from_dbus_path(path, &unit);
2115 /* quietly ignore non-units paths */
2116 return r == -EINVAL ? 0 : r;
2118 session = hashmap_get(m->session_units, unit);
2120 session_add_to_gc_queue(session);
2122 user = hashmap_get(m->user_units, unit);
2124 user_add_to_gc_queue(user);
2129 int match_reloading(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
2130 Manager *m = userdata;
2137 r = sd_bus_message_read(message, "b", &b);
2139 bus_log_parse_error(r);
2146 /* systemd finished reloading, let's recheck all our sessions */
2147 log_debug("System manager has been reloaded, rechecking sessions...");
2149 HASHMAP_FOREACH(session, m->sessions, i)
2150 session_add_to_gc_queue(session);
2155 int match_name_owner_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
2156 const char *name, *old, *new;
2157 Manager *m = userdata;
2165 r = sd_bus_message_read(message, "sss", &name, &old, &new);
2167 bus_log_parse_error(r);
2171 if (isempty(old) || !isempty(new))
2174 key = set_remove(m->busnames, (char*) old);
2178 /* Drop all controllers owned by this name */
2182 HASHMAP_FOREACH(session, m->sessions, i)
2183 if (session_is_controller(session, old))
2184 session_drop_controller(session);
2189 int manager_send_changed(Manager *manager, const char *property, ...) {
2194 l = strv_from_stdarg_alloca(property);
2196 return sd_bus_emit_properties_changed_strv(
2198 "/org/freedesktop/login1",
2199 "org.freedesktop.login1.Manager",
2203 int manager_dispatch_delayed(Manager *manager) {
2204 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2205 Inhibitor *offending = NULL;
2210 if (manager->action_what == 0 || manager->action_job)
2213 /* Continue delay? */
2214 if (manager_is_inhibited(manager, manager->action_what, INHIBIT_DELAY, NULL, false, false, 0, &offending)) {
2215 _cleanup_free_ char *comm = NULL, *u = NULL;
2217 get_process_comm(offending->pid, &comm);
2218 u = uid_to_name(offending->uid);
2220 if (manager->action_timestamp + manager->inhibit_delay_max > now(CLOCK_MONOTONIC))
2223 log_info("Delay lock is active (UID %lu/%s, PID %lu/%s) but inhibitor timeout is reached.",
2224 (unsigned long) offending->uid, strna(u),
2225 (unsigned long) offending->pid, strna(comm));
2228 /* Actually do the operation */
2229 r = execute_shutdown_or_sleep(manager, manager->action_what, manager->action_unit, &error);
2231 log_warning("Failed to send delayed message: %s", bus_error_message(&error, r));
2233 manager->action_unit = NULL;
2234 manager->action_what = 0;
2241 int manager_start_scope(
2246 const char *description,
2247 const char *after, const char *after2,
2248 sd_bus_error *error,
2251 _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
2258 r = sd_bus_message_new_method_call(
2261 "org.freedesktop.systemd1",
2262 "/org/freedesktop/systemd1",
2263 "org.freedesktop.systemd1.Manager",
2264 "StartTransientUnit");
2268 r = sd_bus_message_append(m, "ss", strempty(scope), "fail");
2272 r = sd_bus_message_open_container(m, 'a', "(sv)");
2276 if (!isempty(slice)) {
2277 r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice);
2282 if (!isempty(description)) {
2283 r = sd_bus_message_append(m, "(sv)", "Description", "s", description);
2288 if (!isempty(after)) {
2289 r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after);
2294 if (!isempty(after2)) {
2295 r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after2);
2300 /* cgroup empty notification is not available in containers
2301 * currently. To make this less problematic, let's shorten the
2302 * stop timeout for sessions, so that we don't wait
2305 /* Make sure that the session shells are terminated with
2306 * SIGHUP since bash and friends tend to ignore SIGTERM */
2307 r = sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", true);
2311 r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid);
2315 r = sd_bus_message_close_container(m);
2319 r = sd_bus_message_append(m, "a(sa(sv))", 0);
2323 r = sd_bus_call(manager->bus, m, 0, error, &reply);
2331 r = sd_bus_message_read(reply, "o", &j);
2345 int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
2346 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2352 r = sd_bus_call_method(
2354 "org.freedesktop.systemd1",
2355 "/org/freedesktop/systemd1",
2356 "org.freedesktop.systemd1.Manager",
2360 "ss", unit, "fail");
2368 r = sd_bus_message_read(reply, "o", &j);
2382 int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
2383 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2389 r = sd_bus_call_method(
2391 "org.freedesktop.systemd1",
2392 "/org/freedesktop/systemd1",
2393 "org.freedesktop.systemd1.Manager",
2397 "ss", unit, "fail");
2399 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) ||
2400 sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) {
2405 sd_bus_error_free(error);
2416 r = sd_bus_message_read(reply, "o", &j);
2430 int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error) {
2431 _cleanup_free_ char *path = NULL;
2437 path = unit_dbus_path_from_name(scope);
2441 r = sd_bus_call_method(
2443 "org.freedesktop.systemd1",
2445 "org.freedesktop.systemd1.Scope",
2451 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) ||
2452 sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED) ||
2453 sd_bus_error_has_name(error, BUS_ERROR_SCOPE_NOT_RUNNING)) {
2454 sd_bus_error_free(error);
2464 int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error) {
2468 return sd_bus_call_method(
2470 "org.freedesktop.systemd1",
2471 "/org/freedesktop/systemd1",
2472 "org.freedesktop.systemd1.Manager",
2476 "ssi", unit, who == KILL_LEADER ? "main" : "all", signo);
2479 int manager_unit_is_active(Manager *manager, const char *unit) {
2480 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2481 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2482 _cleanup_free_ char *path = NULL;
2489 path = unit_dbus_path_from_name(unit);
2493 r = sd_bus_get_property(
2495 "org.freedesktop.systemd1",
2497 "org.freedesktop.systemd1.Unit",
2503 /* systemd might have droppped off momentarily, let's
2504 * not make this an error */
2505 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) ||
2506 sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED))
2509 /* If the unit is already unloaded then it's not
2511 if (sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT) ||
2512 sd_bus_error_has_name(&error, BUS_ERROR_LOAD_FAILED))
2518 r = sd_bus_message_read(reply, "s", &state);
2522 return !streq(state, "inactive") && !streq(state, "failed");
2525 int manager_job_is_active(Manager *manager, const char *path) {
2526 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2527 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2533 r = sd_bus_get_property(
2535 "org.freedesktop.systemd1",
2537 "org.freedesktop.systemd1.Job",
2543 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) ||
2544 sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED))
2547 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_OBJECT))
2553 /* We don't actually care about the state really. The fact
2554 * that we could read the job state is enough for us */