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/>.
27 #include "sd-messages.h"
30 #include "path-util.h"
32 #include "sleep-config.h"
33 #include "fileio-label.h"
34 #include "unit-name.h"
37 #include "bus-error.h"
38 #include "bus-common-errors.h"
39 #include "udev-util.h"
40 #include "selinux-util.h"
43 int manager_get_session_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Session **ret) {
44 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
53 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds);
57 r = sd_bus_creds_get_session(creds, &name);
62 session = hashmap_get(m->sessions, name);
64 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
70 int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, sd_bus_error *error, User **ret) {
78 if (uid == UID_INVALID) {
79 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
81 /* Note that we get the owner UID of the session, not the actual client UID here! */
82 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds);
86 r = sd_bus_creds_get_owner_uid(creds, &uid);
91 user = hashmap_get(m->users, UID_TO_PTR(uid));
93 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user "UID_FMT" known or logged in", uid);
99 int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Seat **ret) {
110 r = manager_get_session_from_creds(m, message, NULL, error, &session);
114 seat = session->seat;
117 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "Session has no seat.");
119 seat = hashmap_get(m->seats, name);
121 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name);
128 static int property_get_idle_hint(
131 const char *interface,
132 const char *property,
133 sd_bus_message *reply,
135 sd_bus_error *error) {
137 Manager *m = userdata;
143 return sd_bus_message_append(reply, "b", manager_get_idle_hint(m, NULL) > 0);
146 static int property_get_idle_since_hint(
149 const char *interface,
150 const char *property,
151 sd_bus_message *reply,
153 sd_bus_error *error) {
155 Manager *m = userdata;
162 manager_get_idle_hint(m, &t);
164 return sd_bus_message_append(reply, "t", streq(property, "IdleSinceHint") ? t.realtime : t.monotonic);
167 static int property_get_inhibited(
170 const char *interface,
171 const char *property,
172 sd_bus_message *reply,
174 sd_bus_error *error) {
176 Manager *m = userdata;
183 w = manager_inhibit_what(m, streq(property, "BlockInhibited") ? INHIBIT_BLOCK : INHIBIT_DELAY);
185 return sd_bus_message_append(reply, "s", inhibit_what_to_string(w));
188 static int property_get_preparing(
191 const char *interface,
192 const char *property,
193 sd_bus_message *reply,
195 sd_bus_error *error) {
197 Manager *m = userdata;
204 if (streq(property, "PreparingForShutdown"))
205 b = !!(m->action_what & INHIBIT_SHUTDOWN);
207 b = !!(m->action_what & INHIBIT_SLEEP);
209 return sd_bus_message_append(reply, "b", b);
212 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_handle_action, handle_action, HandleAction);
214 static int method_get_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
215 _cleanup_free_ char *p = NULL;
216 Manager *m = userdata;
225 r = sd_bus_message_read(message, "s", &name);
229 r = manager_get_session_from_creds(m, message, name, error, &session);
233 p = session_bus_path(session);
237 return sd_bus_reply_method_return(message, "o", p);
240 static int method_get_session_by_pid(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
241 _cleanup_free_ char *p = NULL;
242 Session *session = NULL;
243 Manager *m = userdata;
251 assert_cc(sizeof(pid_t) == sizeof(uint32_t));
253 r = sd_bus_message_read(message, "u", &pid);
258 r = manager_get_session_from_creds(m, message, NULL, error, &session);
262 r = manager_get_session_by_pid(m, pid, &session);
267 return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID, "PID "PID_FMT" does not belong to any known session", pid);
270 p = session_bus_path(session);
274 return sd_bus_reply_method_return(message, "o", p);
277 static int method_get_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
278 _cleanup_free_ char *p = NULL;
279 Manager *m = userdata;
288 r = sd_bus_message_read(message, "u", &uid);
292 r = manager_get_user_from_creds(m, message, uid, error, &user);
296 p = user_bus_path(user);
300 return sd_bus_reply_method_return(message, "o", p);
303 static int method_get_user_by_pid(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
304 _cleanup_free_ char *p = NULL;
305 Manager *m = userdata;
314 assert_cc(sizeof(pid_t) == sizeof(uint32_t));
316 r = sd_bus_message_read(message, "u", &pid);
321 r = manager_get_user_from_creds(m, message, UID_INVALID, error, &user);
325 r = manager_get_user_by_pid(m, pid, &user);
329 return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID, "PID "PID_FMT" does not belong to any known or logged in user", pid);
332 p = user_bus_path(user);
336 return sd_bus_reply_method_return(message, "o", p);
339 static int method_get_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
340 _cleanup_free_ char *p = NULL;
341 Manager *m = userdata;
350 r = sd_bus_message_read(message, "s", &name);
354 r = manager_get_seat_from_creds(m, message, name, error, &seat);
358 p = seat_bus_path(seat);
362 return sd_bus_reply_method_return(message, "o", p);
365 static int method_list_sessions(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
366 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
367 Manager *m = userdata;
376 r = sd_bus_message_new_method_return(message, &reply);
380 r = sd_bus_message_open_container(reply, 'a', "(susso)");
384 HASHMAP_FOREACH(session, m->sessions, i) {
385 _cleanup_free_ char *p = NULL;
387 p = session_bus_path(session);
391 r = sd_bus_message_append(reply, "(susso)",
393 (uint32_t) session->user->uid,
395 session->seat ? session->seat->id : "",
401 r = sd_bus_message_close_container(reply);
405 return sd_bus_send(bus, reply, NULL);
408 static int method_list_users(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
409 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
410 Manager *m = userdata;
419 r = sd_bus_message_new_method_return(message, &reply);
423 r = sd_bus_message_open_container(reply, 'a', "(uso)");
427 HASHMAP_FOREACH(user, m->users, i) {
428 _cleanup_free_ char *p = NULL;
430 p = user_bus_path(user);
434 r = sd_bus_message_append(reply, "(uso)",
435 (uint32_t) user->uid,
442 r = sd_bus_message_close_container(reply);
446 return sd_bus_send(bus, reply, NULL);
449 static int method_list_seats(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
450 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
451 Manager *m = userdata;
460 r = sd_bus_message_new_method_return(message, &reply);
464 r = sd_bus_message_open_container(reply, 'a', "(so)");
468 HASHMAP_FOREACH(seat, m->seats, i) {
469 _cleanup_free_ char *p = NULL;
471 p = seat_bus_path(seat);
475 r = sd_bus_message_append(reply, "(so)", seat->id, p);
480 r = sd_bus_message_close_container(reply);
484 return sd_bus_send(bus, reply, NULL);
487 static int method_list_inhibitors(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
488 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
489 Manager *m = userdata;
490 Inhibitor *inhibitor;
494 r = sd_bus_message_new_method_return(message, &reply);
498 r = sd_bus_message_open_container(reply, 'a', "(ssssuu)");
502 HASHMAP_FOREACH(inhibitor, m->inhibitors, i) {
504 r = sd_bus_message_append(reply, "(ssssuu)",
505 strempty(inhibit_what_to_string(inhibitor->what)),
506 strempty(inhibitor->who),
507 strempty(inhibitor->why),
508 strempty(inhibit_mode_to_string(inhibitor->mode)),
509 (uint32_t) inhibitor->uid,
510 (uint32_t) inhibitor->pid);
515 r = sd_bus_message_close_container(reply);
519 return sd_bus_send(bus, reply, NULL);
522 static int method_create_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
523 const char *service, *type, *class, *cseat, *tty, *display, *remote_user, *remote_host, *desktop;
524 uint32_t uid, leader, audit_id = 0;
525 _cleanup_free_ char *id = NULL;
526 Session *session = NULL;
527 Manager *m = userdata;
540 r = sd_bus_message_read(message, "uusssssussbss", &uid, &leader, &service, &type, &class, &desktop, &cseat, &vtnr, &tty, &display, &remote, &remote_user, &remote_host);
545 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID");
548 t = _SESSION_TYPE_INVALID;
550 t = session_type_from_string(type);
552 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session type %s", type);
556 c = _SESSION_CLASS_INVALID;
558 c = session_class_from_string(class);
560 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session class %s", class);
563 if (isempty(desktop))
566 if (!string_is_safe(desktop))
567 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid desktop string %s", desktop);
573 seat = hashmap_get(m->seats, cseat);
575 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", cseat);
578 if (tty_is_vc(tty)) {
583 else if (seat != m->seat0)
584 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);
586 v = vtnr_from_tty(tty);
588 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot determine VT number from virtual console TTY %s", tty);
592 else if (vtnr != (uint32_t) v)
593 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Specified TTY and VT number do not match");
595 } else if (tty_is_console(tty)) {
599 else if (seat != m->seat0)
600 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but seat is not seat0");
603 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but VT number is not 0");
607 if (seat_has_vts(seat)) {
608 if (!vtnr || vtnr > 63)
609 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "VT number out of range");
612 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat has no VTs but VT number not 0");
616 r = sd_bus_message_enter_container(message, 'a', "(sv)");
620 if (t == _SESSION_TYPE_INVALID) {
621 if (!isempty(display))
623 else if (!isempty(tty))
626 t = SESSION_UNSPECIFIED;
629 if (c == _SESSION_CLASS_INVALID) {
630 if (t == SESSION_UNSPECIFIED)
631 c = SESSION_BACKGROUND;
637 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
639 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
643 r = sd_bus_creds_get_pid(creds, (pid_t*) &leader);
648 manager_get_session_by_pid(m, leader, &session);
650 _cleanup_free_ char *path = NULL;
651 _cleanup_close_ int fifo_fd = -1;
653 /* Session already exists, client is probably
654 * something like "su" which changes uid but is still
655 * the same session */
657 fifo_fd = session_create_fifo(session);
661 path = session_bus_path(session);
665 log_debug("Sending reply about an existing session: "
666 "id=%s object_path=%s uid=%u runtime_path=%s "
667 "session_fd=%d seat=%s vtnr=%u",
670 (uint32_t) session->user->uid,
671 session->user->runtime_path,
673 session->seat ? session->seat->id : "",
674 (uint32_t) session->vtnr);
676 return sd_bus_reply_method_return(
680 session->user->runtime_path,
682 (uint32_t) session->user->uid,
683 session->seat ? session->seat->id : "",
684 (uint32_t) session->vtnr,
688 audit_session_from_pid(leader, &audit_id);
690 /* Keep our session IDs and the audit session IDs in sync */
692 if (asprintf(&id, "%"PRIu32, audit_id) < 0)
695 /* Wut? There's already a session by this name and we
696 * didn't find it above? Weird, then let's not trust
697 * the audit data and let's better register a new
699 if (hashmap_get(m->sessions, id)) {
700 log_warning("Existing logind session ID %s used by new audit session, ignoring", id);
713 if (asprintf(&id, "c%lu", ++m->session_counter) < 0)
716 } while (hashmap_get(m->sessions, id));
719 r = manager_add_user_by_uid(m, uid, &user);
723 r = manager_add_session(m, id, &session);
727 session_set_user(session, user);
729 session->leader = leader;
730 session->audit_id = audit_id;
733 session->remote = remote;
734 session->vtnr = vtnr;
737 session->tty = strdup(tty);
744 if (!isempty(display)) {
745 session->display = strdup(display);
746 if (!session->display) {
752 if (!isempty(remote_user)) {
753 session->remote_user = strdup(remote_user);
754 if (!session->remote_user) {
760 if (!isempty(remote_host)) {
761 session->remote_host = strdup(remote_host);
762 if (!session->remote_host) {
768 if (!isempty(service)) {
769 session->service = strdup(service);
770 if (!session->service) {
776 if (!isempty(desktop)) {
777 session->desktop = strdup(desktop);
778 if (!session->desktop) {
785 r = seat_attach_session(seat, session);
790 r = session_start(session);
794 session->create_message = sd_bus_message_ref(message);
796 /* Now, let's wait until the slice unit and stuff got
797 * created. We send the reply back from
798 * session_send_create_reply(). */
804 session_add_to_gc_queue(session);
807 user_add_to_gc_queue(user);
812 static int method_release_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
813 Manager *m = userdata;
822 r = sd_bus_message_read(message, "s", &name);
826 r = manager_get_session_from_creds(m, message, name, error, &session);
830 session_release(session);
832 return sd_bus_reply_method_return(message, NULL);
835 static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
836 Manager *m = userdata;
845 r = sd_bus_message_read(message, "s", &name);
849 r = manager_get_session_from_creds(m, message, name, error, &session);
853 return bus_session_method_activate(bus, message, session, error);
856 static int method_activate_session_on_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
857 const char *session_name, *seat_name;
858 Manager *m = userdata;
867 /* Same as ActivateSession() but refuses to work if
868 * the seat doesn't match */
870 r = sd_bus_message_read(message, "ss", &session_name, &seat_name);
874 r = manager_get_session_from_creds(m, message, session_name, error, &session);
878 r = manager_get_seat_from_creds(m, message, seat_name, error, &seat);
882 if (session->seat != seat)
883 return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", session_name, seat_name);
885 r = session_activate(session);
889 return sd_bus_reply_method_return(message, NULL);
892 static int method_lock_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
893 Manager *m = userdata;
902 r = sd_bus_message_read(message, "s", &name);
906 r = manager_get_session_from_creds(m, message, name, error, &session);
910 return bus_session_method_lock(bus, message, session, error);
913 static int method_lock_sessions(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
914 Manager *m = userdata;
921 r = bus_verify_polkit_async(
924 "org.freedesktop.login1.lock-sessions",
932 return 1; /* Will call us back */
934 r = session_send_lock_all(m, streq(sd_bus_message_get_member(message), "LockSessions"));
938 return sd_bus_reply_method_return(message, NULL);
941 static int method_kill_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
943 Manager *m = userdata;
951 r = sd_bus_message_read(message, "s", &name);
955 r = manager_get_session_from_creds(m, message, name, error, &session);
959 return bus_session_method_kill(bus, message, session, error);
962 static int method_kill_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
963 Manager *m = userdata;
972 r = sd_bus_message_read(message, "u", &uid);
976 r = manager_get_user_from_creds(m, message, uid, error, &user);
980 return bus_user_method_kill(bus, message, user, error);
983 static int method_terminate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
984 Manager *m = userdata;
993 r = sd_bus_message_read(message, "s", &name);
997 r = manager_get_session_from_creds(m, message, name, error, &session);
1001 return bus_session_method_terminate(bus, message, session, error);
1004 static int method_terminate_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1005 Manager *m = userdata;
1014 r = sd_bus_message_read(message, "u", &uid);
1018 r = manager_get_user_from_creds(m, message, uid, error, &user);
1022 return bus_user_method_terminate(bus, message, user, error);
1025 static int method_terminate_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1026 Manager *m = userdata;
1035 r = sd_bus_message_read(message, "s", &name);
1039 r = manager_get_seat_from_creds(m, message, name, error, &seat);
1043 return bus_seat_method_terminate(bus, message, seat, error);
1046 static int method_set_user_linger(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1047 _cleanup_free_ char *cc = NULL;
1048 Manager *m = userdata;
1059 r = sd_bus_message_read(message, "ubb", &uid, &b, &interactive);
1063 if (uid == UID_INVALID) {
1064 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
1066 /* Note that we get the owner UID of the session, not the actual client UID here! */
1067 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds);
1071 r = sd_bus_creds_get_owner_uid(creds, &uid);
1079 return errno ? -errno : -ENOENT;
1081 r = bus_verify_polkit_async(
1084 "org.freedesktop.login1.set-user-linger",
1087 &m->polkit_registry,
1092 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1094 mkdir_p_label("/var/lib/systemd", 0755);
1096 r = mkdir_safe_label("/var/lib/systemd/linger", 0755, 0, 0);
1100 cc = cescape(pw->pw_name);
1104 path = strjoina("/var/lib/systemd/linger/", cc);
1112 if (manager_add_user_by_uid(m, uid, &u) >= 0)
1119 if (r < 0 && errno != ENOENT)
1122 u = hashmap_get(m->users, UID_TO_PTR(uid));
1124 user_add_to_gc_queue(u);
1127 return sd_bus_reply_method_return(message, NULL);
1130 static int trigger_device(Manager *m, struct udev_device *d) {
1131 _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
1132 struct udev_list_entry *first, *item;
1137 e = udev_enumerate_new(m->udev);
1142 r = udev_enumerate_add_match_parent(e, d);
1147 r = udev_enumerate_scan_devices(e);
1151 first = udev_enumerate_get_list_entry(e);
1152 udev_list_entry_foreach(item, first) {
1153 _cleanup_free_ char *t = NULL;
1156 p = udev_list_entry_get_name(item);
1158 t = strappend(p, "/uevent");
1162 write_string_file(t, "change");
1168 static int attach_device(Manager *m, const char *seat, const char *sysfs) {
1169 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
1170 _cleanup_free_ char *rule = NULL, *file = NULL;
1171 const char *id_for_seat;
1178 d = udev_device_new_from_syspath(m->udev, sysfs);
1182 if (!udev_device_has_tag(d, "seat"))
1185 id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT");
1189 if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0)
1192 if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0)
1195 mkdir_p_label("/etc/udev/rules.d", 0755);
1196 mac_selinux_init("/etc");
1197 r = write_string_file_atomic_label(file, rule);
1201 return trigger_device(m, d);
1204 static int flush_devices(Manager *m) {
1205 _cleanup_closedir_ DIR *d;
1209 d = opendir("/etc/udev/rules.d");
1211 if (errno != ENOENT)
1212 log_warning_errno(errno, "Failed to open /etc/udev/rules.d: %m");
1216 while ((de = readdir(d))) {
1218 if (!dirent_is_file(de))
1221 if (!startswith(de->d_name, "72-seat-"))
1224 if (!endswith(de->d_name, ".rules"))
1227 if (unlinkat(dirfd(d), de->d_name, 0) < 0)
1228 log_warning_errno(errno, "Failed to unlink %s: %m", de->d_name);
1232 return trigger_device(m, NULL);
1235 static int method_attach_device(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1236 const char *sysfs, *seat;
1237 Manager *m = userdata;
1244 r = sd_bus_message_read(message, "ssb", &seat, &sysfs, &interactive);
1248 if (!path_startswith(sysfs, "/sys"))
1249 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not in /sys", sysfs);
1251 if (!seat_name_is_valid(seat))
1252 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat %s is not valid", seat);
1254 r = bus_verify_polkit_async(
1257 "org.freedesktop.login1.attach-device",
1260 &m->polkit_registry,
1265 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1267 r = attach_device(m, seat, sysfs);
1271 return sd_bus_reply_method_return(message, NULL);
1274 static int method_flush_devices(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1275 Manager *m = userdata;
1282 r = sd_bus_message_read(message, "b", &interactive);
1286 r = bus_verify_polkit_async(
1289 "org.freedesktop.login1.flush-devices",
1292 &m->polkit_registry,
1297 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1299 r = flush_devices(m);
1303 return sd_bus_reply_method_return(message, NULL);
1306 static int have_multiple_sessions(
1315 /* Check for other users' sessions. Greeter sessions do not
1316 * count, and non-login sessions do not count either. */
1317 HASHMAP_FOREACH(session, m->sessions, i)
1318 if (session->class == SESSION_USER &&
1319 session->user->uid != uid)
1325 static int bus_manager_log_shutdown(
1328 const char *unit_name) {
1335 if (w != INHIBIT_SHUTDOWN)
1338 if (streq(unit_name, SPECIAL_POWEROFF_TARGET)) {
1339 p = "MESSAGE=System is powering down.";
1340 q = "SHUTDOWN=power-off";
1341 } else if (streq(unit_name, SPECIAL_HALT_TARGET)) {
1342 p = "MESSAGE=System is halting.";
1343 q = "SHUTDOWN=halt";
1344 } else if (streq(unit_name, SPECIAL_REBOOT_TARGET)) {
1345 p = "MESSAGE=System is rebooting.";
1346 q = "SHUTDOWN=reboot";
1347 } else if (streq(unit_name, SPECIAL_KEXEC_TARGET)) {
1348 p = "MESSAGE=System is rebooting with kexec.";
1349 q = "SHUTDOWN=kexec";
1351 p = "MESSAGE=System is shutting down.";
1355 return log_struct(LOG_NOTICE,
1356 LOG_MESSAGE_ID(SD_MESSAGE_SHUTDOWN),
1362 static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) {
1363 Manager *m = userdata;
1368 m->lid_switch_ignore_event_source = sd_event_source_unref(m->lid_switch_ignore_event_source);
1372 int manager_set_lid_switch_ignore(Manager *m, usec_t until) {
1377 if (until <= now(CLOCK_MONOTONIC))
1380 /* We want to ignore the lid switch for a while after each
1381 * suspend, and after boot-up. Hence let's install a timer for
1382 * this. As long as the event source exists we ignore the lid
1385 if (m->lid_switch_ignore_event_source) {
1388 r = sd_event_source_get_time(m->lid_switch_ignore_event_source, &u);
1395 r = sd_event_source_set_time(m->lid_switch_ignore_event_source, until);
1397 r = sd_event_add_time(
1399 &m->lid_switch_ignore_event_source,
1402 lid_switch_ignore_handler, m);
1407 static int execute_shutdown_or_sleep(
1410 const char *unit_name,
1411 sd_bus_error *error) {
1413 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1420 assert(w < _INHIBIT_WHAT_MAX);
1423 bus_manager_log_shutdown(m, w, unit_name);
1425 r = sd_bus_call_method(
1427 "org.freedesktop.systemd1",
1428 "/org/freedesktop/systemd1",
1429 "org.freedesktop.systemd1.Manager",
1433 "ss", unit_name, "replace-irreversibly");
1437 r = sd_bus_message_read(reply, "o", &p);
1445 m->action_unit = unit_name;
1446 free(m->action_job);
1450 /* Make sure the lid switch is ignored for a while */
1451 manager_set_lid_switch_ignore(m, now(CLOCK_MONOTONIC) + IGNORE_LID_SWITCH_SUSPEND_USEC);
1456 static int delay_shutdown_or_sleep(
1459 const char *unit_name) {
1463 assert(w < _INHIBIT_WHAT_MAX);
1466 m->action_timestamp = now(CLOCK_MONOTONIC);
1467 m->action_unit = unit_name;
1473 static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) {
1475 static const char * const signal_name[_INHIBIT_WHAT_MAX] = {
1476 [INHIBIT_SHUTDOWN] = "PrepareForShutdown",
1477 [INHIBIT_SLEEP] = "PrepareForSleep"
1480 int active = _active;
1484 assert(w < _INHIBIT_WHAT_MAX);
1485 assert(signal_name[w]);
1487 return sd_bus_emit_signal(m->bus,
1488 "/org/freedesktop/login1",
1489 "org.freedesktop.login1.Manager",
1495 int bus_manager_shutdown_or_sleep_now_or_later(
1497 const char *unit_name,
1499 sd_bus_error *error) {
1507 assert(w <= _INHIBIT_WHAT_MAX);
1508 assert(!m->action_job);
1510 /* Tell everybody to prepare for shutdown/sleep */
1511 send_prepare_for(m, w, true);
1514 m->inhibit_delay_max > 0 &&
1515 manager_is_inhibited(m, w, INHIBIT_DELAY, NULL, false, false, 0, NULL);
1518 /* Shutdown is delayed, keep in mind what we
1519 * want to do, and start a timeout */
1520 r = delay_shutdown_or_sleep(m, w, unit_name);
1522 /* Shutdown is not delayed, execute it
1524 r = execute_shutdown_or_sleep(m, w, unit_name, error);
1529 static int method_do_shutdown_or_sleep(
1531 sd_bus_message *message,
1532 const char *unit_name,
1535 const char *action_multiple_sessions,
1536 const char *action_ignore_inhibit,
1537 const char *sleep_verb,
1538 sd_bus_message_handler_t method,
1539 sd_bus_error *error) {
1541 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
1542 bool multiple_sessions, blocked;
1550 assert(w <= _INHIBIT_WHAT_MAX);
1552 assert(action_multiple_sessions);
1553 assert(action_ignore_inhibit);
1556 r = sd_bus_message_read(message, "b", &interactive);
1560 /* Don't allow multiple jobs being executed at the same time */
1562 return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "There's already a shutdown or sleep operation in progress");
1565 r = can_sleep(sleep_verb);
1570 return sd_bus_error_setf(error, BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED, "Sleep verb not supported");
1573 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds);
1577 r = sd_bus_creds_get_euid(creds, &uid);
1581 r = have_multiple_sessions(m, uid);
1585 multiple_sessions = r > 0;
1586 blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
1588 if (multiple_sessions) {
1589 r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_multiple_sessions, interactive, UID_INVALID, &m->polkit_registry, error);
1593 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1597 r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_ignore_inhibit, interactive, UID_INVALID, &m->polkit_registry, error);
1601 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1604 if (!multiple_sessions && !blocked) {
1605 r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action, interactive, UID_INVALID, &m->polkit_registry, error);
1609 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1612 r = bus_manager_shutdown_or_sleep_now_or_later(m, unit_name, w, error);
1616 return sd_bus_reply_method_return(message, NULL);
1619 static int method_poweroff(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1620 Manager *m = userdata;
1622 return method_do_shutdown_or_sleep(
1624 SPECIAL_POWEROFF_TARGET,
1626 "org.freedesktop.login1.power-off",
1627 "org.freedesktop.login1.power-off-multiple-sessions",
1628 "org.freedesktop.login1.power-off-ignore-inhibit",
1634 static int method_reboot(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1635 Manager *m = userdata;
1637 return method_do_shutdown_or_sleep(
1639 SPECIAL_REBOOT_TARGET,
1641 "org.freedesktop.login1.reboot",
1642 "org.freedesktop.login1.reboot-multiple-sessions",
1643 "org.freedesktop.login1.reboot-ignore-inhibit",
1649 static int method_suspend(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1650 Manager *m = userdata;
1652 return method_do_shutdown_or_sleep(
1654 SPECIAL_SUSPEND_TARGET,
1656 "org.freedesktop.login1.suspend",
1657 "org.freedesktop.login1.suspend-multiple-sessions",
1658 "org.freedesktop.login1.suspend-ignore-inhibit",
1664 static int method_hibernate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1665 Manager *m = userdata;
1667 return method_do_shutdown_or_sleep(
1669 SPECIAL_HIBERNATE_TARGET,
1671 "org.freedesktop.login1.hibernate",
1672 "org.freedesktop.login1.hibernate-multiple-sessions",
1673 "org.freedesktop.login1.hibernate-ignore-inhibit",
1679 static int method_hybrid_sleep(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1680 Manager *m = userdata;
1682 return method_do_shutdown_or_sleep(
1684 SPECIAL_HYBRID_SLEEP_TARGET,
1686 "org.freedesktop.login1.hibernate",
1687 "org.freedesktop.login1.hibernate-multiple-sessions",
1688 "org.freedesktop.login1.hibernate-ignore-inhibit",
1690 method_hybrid_sleep,
1694 static int method_can_shutdown_or_sleep(
1696 sd_bus_message *message,
1699 const char *action_multiple_sessions,
1700 const char *action_ignore_inhibit,
1701 const char *sleep_verb,
1702 sd_bus_error *error) {
1704 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
1705 bool multiple_sessions, challenge, blocked;
1706 const char *result = NULL;
1713 assert(w <= _INHIBIT_WHAT_MAX);
1715 assert(action_multiple_sessions);
1716 assert(action_ignore_inhibit);
1719 r = can_sleep(sleep_verb);
1723 return sd_bus_reply_method_return(message, "s", "na");
1726 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds);
1730 r = sd_bus_creds_get_euid(creds, &uid);
1734 r = have_multiple_sessions(m, uid);
1738 multiple_sessions = r > 0;
1739 blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
1741 if (multiple_sessions) {
1742 r = bus_verify_polkit(message, CAP_SYS_BOOT, action_multiple_sessions, false, UID_INVALID, &challenge, error);
1749 result = "challenge";
1755 r = bus_verify_polkit(message, CAP_SYS_BOOT, action_ignore_inhibit, false, UID_INVALID, &challenge, error);
1759 if (r > 0 && !result)
1761 else if (challenge && (!result || streq(result, "yes")))
1762 result = "challenge";
1767 if (!multiple_sessions && !blocked) {
1768 /* If neither inhibit nor multiple sessions
1769 * apply then just check the normal policy */
1771 r = bus_verify_polkit(message, CAP_SYS_BOOT, action, false, UID_INVALID, &challenge, error);
1778 result = "challenge";
1783 return sd_bus_reply_method_return(message, "s", result);
1786 static int method_can_poweroff(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1787 Manager *m = userdata;
1789 return method_can_shutdown_or_sleep(
1792 "org.freedesktop.login1.power-off",
1793 "org.freedesktop.login1.power-off-multiple-sessions",
1794 "org.freedesktop.login1.power-off-ignore-inhibit",
1799 static int method_can_reboot(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1800 Manager *m = userdata;
1802 return method_can_shutdown_or_sleep(
1805 "org.freedesktop.login1.reboot",
1806 "org.freedesktop.login1.reboot-multiple-sessions",
1807 "org.freedesktop.login1.reboot-ignore-inhibit",
1812 static int method_can_suspend(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1813 Manager *m = userdata;
1815 return method_can_shutdown_or_sleep(
1818 "org.freedesktop.login1.suspend",
1819 "org.freedesktop.login1.suspend-multiple-sessions",
1820 "org.freedesktop.login1.suspend-ignore-inhibit",
1825 static int method_can_hibernate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1826 Manager *m = userdata;
1828 return method_can_shutdown_or_sleep(
1831 "org.freedesktop.login1.hibernate",
1832 "org.freedesktop.login1.hibernate-multiple-sessions",
1833 "org.freedesktop.login1.hibernate-ignore-inhibit",
1838 static int method_can_hybrid_sleep(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1839 Manager *m = userdata;
1841 return method_can_shutdown_or_sleep(
1844 "org.freedesktop.login1.hibernate",
1845 "org.freedesktop.login1.hibernate-multiple-sessions",
1846 "org.freedesktop.login1.hibernate-ignore-inhibit",
1851 static int method_inhibit(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
1852 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
1853 const char *who, *why, *what, *mode;
1854 _cleanup_free_ char *id = NULL;
1855 _cleanup_close_ int fifo_fd = -1;
1856 Manager *m = userdata;
1857 Inhibitor *i = NULL;
1868 r = sd_bus_message_read(message, "ssss", &what, &who, &why, &mode);
1872 w = inhibit_what_from_string(what);
1874 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid what specification %s", what);
1876 mm = inhibit_mode_from_string(mode);
1878 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid mode specification %s", mode);
1880 /* Delay is only supported for shutdown/sleep */
1881 if (mm == INHIBIT_DELAY && (w & ~(INHIBIT_SHUTDOWN|INHIBIT_SLEEP)))
1882 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Delay inhibitors only supported for shutdown and sleep");
1884 /* Don't allow taking delay locks while we are already
1885 * executing the operation. We shouldn't create the impression
1886 * that the lock was successful if the machine is about to go
1887 * down/suspend any moment. */
1888 if (m->action_what & w)
1889 return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "The operation inhibition has been requested for is already running");
1891 r = bus_verify_polkit_async(
1894 w == INHIBIT_SHUTDOWN ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-shutdown" : "org.freedesktop.login1.inhibit-delay-shutdown") :
1895 w == INHIBIT_SLEEP ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-sleep" : "org.freedesktop.login1.inhibit-delay-sleep") :
1896 w == INHIBIT_IDLE ? "org.freedesktop.login1.inhibit-block-idle" :
1897 w == INHIBIT_HANDLE_POWER_KEY ? "org.freedesktop.login1.inhibit-handle-power-key" :
1898 w == INHIBIT_HANDLE_SUSPEND_KEY ? "org.freedesktop.login1.inhibit-handle-suspend-key" :
1899 w == INHIBIT_HANDLE_HIBERNATE_KEY ? "org.freedesktop.login1.inhibit-handle-hibernate-key" :
1900 "org.freedesktop.login1.inhibit-handle-lid-switch",
1903 &m->polkit_registry,
1908 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1910 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID, &creds);
1914 r = sd_bus_creds_get_euid(creds, &uid);
1918 r = sd_bus_creds_get_pid(creds, &pid);
1926 if (asprintf(&id, "%lu", ++m->inhibit_counter) < 0)
1929 } while (hashmap_get(m->inhibitors, id));
1931 r = manager_add_inhibitor(m, id, &i);
1939 i->why = strdup(why);
1940 i->who = strdup(who);
1942 if (!i->why || !i->who) {
1947 fifo_fd = inhibitor_create_fifo(i);
1955 return sd_bus_reply_method_return(message, "h", fifo_fd);
1964 const sd_bus_vtable manager_vtable[] = {
1965 SD_BUS_VTABLE_START(0),
1967 SD_BUS_PROPERTY("NAutoVTs", "u", NULL, offsetof(Manager, n_autovts), SD_BUS_VTABLE_PROPERTY_CONST),
1968 SD_BUS_PROPERTY("KillOnlyUsers", "as", NULL, offsetof(Manager, kill_only_users), SD_BUS_VTABLE_PROPERTY_CONST),
1969 SD_BUS_PROPERTY("KillExcludeUsers", "as", NULL, offsetof(Manager, kill_exclude_users), SD_BUS_VTABLE_PROPERTY_CONST),
1970 SD_BUS_PROPERTY("KillUserProcesses", "b", NULL, offsetof(Manager, kill_user_processes), SD_BUS_VTABLE_PROPERTY_CONST),
1971 SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1972 SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1973 SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1974 SD_BUS_PROPERTY("BlockInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1975 SD_BUS_PROPERTY("DelayInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1976 SD_BUS_PROPERTY("InhibitDelayMaxUSec", "t", NULL, offsetof(Manager, inhibit_delay_max), SD_BUS_VTABLE_PROPERTY_CONST),
1977 SD_BUS_PROPERTY("HandlePowerKey", "s", property_get_handle_action, offsetof(Manager, handle_power_key), SD_BUS_VTABLE_PROPERTY_CONST),
1978 SD_BUS_PROPERTY("HandleSuspendKey", "s", property_get_handle_action, offsetof(Manager, handle_suspend_key), SD_BUS_VTABLE_PROPERTY_CONST),
1979 SD_BUS_PROPERTY("HandleHibernateKey", "s", property_get_handle_action, offsetof(Manager, handle_hibernate_key), SD_BUS_VTABLE_PROPERTY_CONST),
1980 SD_BUS_PROPERTY("HandleLidSwitch", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch), SD_BUS_VTABLE_PROPERTY_CONST),
1981 SD_BUS_PROPERTY("HandleLidSwitchDocked", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch_docked), SD_BUS_VTABLE_PROPERTY_CONST),
1982 SD_BUS_PROPERTY("IdleAction", "s", property_get_handle_action, offsetof(Manager, idle_action), SD_BUS_VTABLE_PROPERTY_CONST),
1983 SD_BUS_PROPERTY("IdleActionUSec", "t", NULL, offsetof(Manager, idle_action_usec), SD_BUS_VTABLE_PROPERTY_CONST),
1984 SD_BUS_PROPERTY("PreparingForShutdown", "b", property_get_preparing, 0, 0),
1985 SD_BUS_PROPERTY("PreparingForSleep", "b", property_get_preparing, 0, 0),
1987 SD_BUS_METHOD("GetSession", "s", "o", method_get_session, SD_BUS_VTABLE_UNPRIVILEGED),
1988 SD_BUS_METHOD("GetSessionByPID", "u", "o", method_get_session_by_pid, SD_BUS_VTABLE_UNPRIVILEGED),
1989 SD_BUS_METHOD("GetUser", "u", "o", method_get_user, SD_BUS_VTABLE_UNPRIVILEGED),
1990 SD_BUS_METHOD("GetUserByPID", "u", "o", method_get_user_by_pid, SD_BUS_VTABLE_UNPRIVILEGED),
1991 SD_BUS_METHOD("GetSeat", "s", "o", method_get_seat, SD_BUS_VTABLE_UNPRIVILEGED),
1992 SD_BUS_METHOD("ListSessions", NULL, "a(susso)", method_list_sessions, SD_BUS_VTABLE_UNPRIVILEGED),
1993 SD_BUS_METHOD("ListUsers", NULL, "a(uso)", method_list_users, SD_BUS_VTABLE_UNPRIVILEGED),
1994 SD_BUS_METHOD("ListSeats", NULL, "a(so)", method_list_seats, SD_BUS_VTABLE_UNPRIVILEGED),
1995 SD_BUS_METHOD("ListInhibitors", NULL, "a(ssssuu)", method_list_inhibitors, SD_BUS_VTABLE_UNPRIVILEGED),
1996 SD_BUS_METHOD("CreateSession", "uusssssussbssa(sv)", "soshusub", method_create_session, 0),
1997 SD_BUS_METHOD("ReleaseSession", "s", NULL, method_release_session, 0),
1998 SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
1999 SD_BUS_METHOD("ActivateSessionOnSeat", "ss", NULL, method_activate_session_on_seat, SD_BUS_VTABLE_UNPRIVILEGED),
2000 SD_BUS_METHOD("LockSession", "s", NULL, method_lock_session, SD_BUS_VTABLE_UNPRIVILEGED),
2001 SD_BUS_METHOD("UnlockSession", "s", NULL, method_lock_session, SD_BUS_VTABLE_UNPRIVILEGED),
2002 SD_BUS_METHOD("LockSessions", NULL, NULL, method_lock_sessions, SD_BUS_VTABLE_UNPRIVILEGED),
2003 SD_BUS_METHOD("UnlockSessions", NULL, NULL, method_lock_sessions, SD_BUS_VTABLE_UNPRIVILEGED),
2004 SD_BUS_METHOD("KillSession", "ssi", NULL, method_kill_session, SD_BUS_VTABLE_UNPRIVILEGED),
2005 SD_BUS_METHOD("KillUser", "ui", NULL, method_kill_user, SD_BUS_VTABLE_UNPRIVILEGED),
2006 SD_BUS_METHOD("TerminateSession", "s", NULL, method_terminate_session, SD_BUS_VTABLE_UNPRIVILEGED),
2007 SD_BUS_METHOD("TerminateUser", "u", NULL, method_terminate_user, SD_BUS_VTABLE_UNPRIVILEGED),
2008 SD_BUS_METHOD("TerminateSeat", "s", NULL, method_terminate_seat, SD_BUS_VTABLE_UNPRIVILEGED),
2009 SD_BUS_METHOD("SetUserLinger", "ubb", NULL, method_set_user_linger, SD_BUS_VTABLE_UNPRIVILEGED),
2010 SD_BUS_METHOD("AttachDevice", "ssb", NULL, method_attach_device, SD_BUS_VTABLE_UNPRIVILEGED),
2011 SD_BUS_METHOD("FlushDevices", "b", NULL, method_flush_devices, SD_BUS_VTABLE_UNPRIVILEGED),
2012 SD_BUS_METHOD("PowerOff", "b", NULL, method_poweroff, SD_BUS_VTABLE_UNPRIVILEGED),
2013 SD_BUS_METHOD("Reboot", "b", NULL, method_reboot, SD_BUS_VTABLE_UNPRIVILEGED),
2014 SD_BUS_METHOD("Suspend", "b", NULL, method_suspend, SD_BUS_VTABLE_UNPRIVILEGED),
2015 SD_BUS_METHOD("Hibernate", "b", NULL, method_hibernate, SD_BUS_VTABLE_UNPRIVILEGED),
2016 SD_BUS_METHOD("HybridSleep", "b", NULL, method_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED),
2017 SD_BUS_METHOD("CanPowerOff", NULL, "s", method_can_poweroff, SD_BUS_VTABLE_UNPRIVILEGED),
2018 SD_BUS_METHOD("CanReboot", NULL, "s", method_can_reboot, SD_BUS_VTABLE_UNPRIVILEGED),
2019 SD_BUS_METHOD("CanSuspend", NULL, "s", method_can_suspend, SD_BUS_VTABLE_UNPRIVILEGED),
2020 SD_BUS_METHOD("CanHibernate", NULL, "s", method_can_hibernate, SD_BUS_VTABLE_UNPRIVILEGED),
2021 SD_BUS_METHOD("CanHybridSleep", NULL, "s", method_can_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED),
2022 SD_BUS_METHOD("Inhibit", "ssss", "h", method_inhibit, SD_BUS_VTABLE_UNPRIVILEGED),
2024 SD_BUS_SIGNAL("SessionNew", "so", 0),
2025 SD_BUS_SIGNAL("SessionRemoved", "so", 0),
2026 SD_BUS_SIGNAL("UserNew", "uo", 0),
2027 SD_BUS_SIGNAL("UserRemoved", "uo", 0),
2028 SD_BUS_SIGNAL("SeatNew", "so", 0),
2029 SD_BUS_SIGNAL("SeatRemoved", "so", 0),
2030 SD_BUS_SIGNAL("PrepareForShutdown", "b", 0),
2031 SD_BUS_SIGNAL("PrepareForSleep", "b", 0),
2036 static int session_jobs_reply(Session *s, const char *unit, const char *result) {
2045 if (streq(result, "done"))
2046 r = session_send_create_reply(s, NULL);
2048 _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL;
2050 sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result);
2051 r = session_send_create_reply(s, &e);
2057 int match_job_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
2058 const char *path, *result, *unit;
2059 Manager *m = userdata;
2069 r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result);
2071 bus_log_parse_error(r);
2075 if (m->action_job && streq(m->action_job, path)) {
2076 log_info("Operation finished.");
2078 /* Tell people that they now may take a lock again */
2079 send_prepare_for(m, m->action_what, false);
2081 free(m->action_job);
2082 m->action_job = NULL;
2083 m->action_unit = NULL;
2088 session = hashmap_get(m->session_units, unit);
2091 if (streq_ptr(path, session->scope_job)) {
2092 free(session->scope_job);
2093 session->scope_job = NULL;
2096 session_jobs_reply(session, unit, result);
2098 session_save(session);
2099 session_add_to_gc_queue(session);
2102 user = hashmap_get(m->user_units, unit);
2105 if (streq_ptr(path, user->service_job)) {
2106 free(user->service_job);
2107 user->service_job = NULL;
2110 if (streq_ptr(path, user->slice_job)) {
2111 free(user->slice_job);
2112 user->slice_job = NULL;
2115 LIST_FOREACH(sessions_by_user, session, user->sessions) {
2116 session_jobs_reply(session, unit, result);
2120 user_add_to_gc_queue(user);
2126 int match_unit_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
2127 const char *path, *unit;
2128 Manager *m = userdata;
2137 r = sd_bus_message_read(message, "so", &unit, &path);
2139 bus_log_parse_error(r);
2143 session = hashmap_get(m->session_units, unit);
2145 session_add_to_gc_queue(session);
2147 user = hashmap_get(m->user_units, unit);
2149 user_add_to_gc_queue(user);
2154 int match_properties_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
2155 _cleanup_free_ char *unit = NULL;
2156 Manager *m = userdata;
2166 path = sd_bus_message_get_path(message);
2170 r = unit_name_from_dbus_path(path, &unit);
2171 if (r == -EINVAL) /* not a unit */
2176 session = hashmap_get(m->session_units, unit);
2178 session_add_to_gc_queue(session);
2180 user = hashmap_get(m->user_units, unit);
2182 user_add_to_gc_queue(user);
2187 int match_reloading(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
2188 Manager *m = userdata;
2195 r = sd_bus_message_read(message, "b", &b);
2197 bus_log_parse_error(r);
2204 /* systemd finished reloading, let's recheck all our sessions */
2205 log_debug("System manager has been reloaded, rechecking sessions...");
2207 HASHMAP_FOREACH(session, m->sessions, i)
2208 session_add_to_gc_queue(session);
2213 int match_name_owner_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
2214 const char *name, *old, *new;
2215 Manager *m = userdata;
2223 r = sd_bus_message_read(message, "sss", &name, &old, &new);
2225 bus_log_parse_error(r);
2229 if (isempty(old) || !isempty(new))
2232 key = set_remove(m->busnames, (char*) old);
2236 /* Drop all controllers owned by this name */
2240 HASHMAP_FOREACH(session, m->sessions, i)
2241 if (session_is_controller(session, old))
2242 session_drop_controller(session);
2247 int manager_send_changed(Manager *manager, const char *property, ...) {
2252 l = strv_from_stdarg_alloca(property);
2254 return sd_bus_emit_properties_changed_strv(
2256 "/org/freedesktop/login1",
2257 "org.freedesktop.login1.Manager",
2261 int manager_dispatch_delayed(Manager *manager) {
2262 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2263 Inhibitor *offending = NULL;
2268 if (manager->action_what == 0 || manager->action_job)
2271 /* Continue delay? */
2272 if (manager_is_inhibited(manager, manager->action_what, INHIBIT_DELAY, NULL, false, false, 0, &offending)) {
2273 _cleanup_free_ char *comm = NULL, *u = NULL;
2275 get_process_comm(offending->pid, &comm);
2276 u = uid_to_name(offending->uid);
2278 if (manager->action_timestamp + manager->inhibit_delay_max > now(CLOCK_MONOTONIC))
2281 log_info("Delay lock is active (UID "UID_FMT"/%s, PID "PID_FMT"/%s) but inhibitor timeout is reached.",
2282 offending->uid, strna(u),
2283 offending->pid, strna(comm));
2286 /* Actually do the operation */
2287 r = execute_shutdown_or_sleep(manager, manager->action_what, manager->action_unit, &error);
2289 log_warning("Failed to send delayed message: %s", bus_error_message(&error, r));
2291 manager->action_unit = NULL;
2292 manager->action_what = 0;
2299 int manager_start_scope(
2304 const char *description,
2305 const char *after, const char *after2,
2306 sd_bus_error *error,
2309 _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
2316 r = sd_bus_message_new_method_call(
2319 "org.freedesktop.systemd1",
2320 "/org/freedesktop/systemd1",
2321 "org.freedesktop.systemd1.Manager",
2322 "StartTransientUnit");
2326 r = sd_bus_message_append(m, "ss", strempty(scope), "fail");
2330 r = sd_bus_message_open_container(m, 'a', "(sv)");
2334 if (!isempty(slice)) {
2335 r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice);
2340 if (!isempty(description)) {
2341 r = sd_bus_message_append(m, "(sv)", "Description", "s", description);
2346 if (!isempty(after)) {
2347 r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after);
2352 if (!isempty(after2)) {
2353 r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after2);
2358 /* cgroup empty notification is not available in containers
2359 * currently. To make this less problematic, let's shorten the
2360 * stop timeout for sessions, so that we don't wait
2363 /* Make sure that the session shells are terminated with
2364 * SIGHUP since bash and friends tend to ignore SIGTERM */
2365 r = sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", true);
2369 r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid);
2373 r = sd_bus_message_close_container(m);
2377 r = sd_bus_message_append(m, "a(sa(sv))", 0);
2381 r = sd_bus_call(manager->bus, m, 0, error, &reply);
2389 r = sd_bus_message_read(reply, "o", &j);
2403 int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
2404 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2410 r = sd_bus_call_method(
2412 "org.freedesktop.systemd1",
2413 "/org/freedesktop/systemd1",
2414 "org.freedesktop.systemd1.Manager",
2418 "ss", unit, "fail");
2426 r = sd_bus_message_read(reply, "o", &j);
2440 int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
2441 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2447 r = sd_bus_call_method(
2449 "org.freedesktop.systemd1",
2450 "/org/freedesktop/systemd1",
2451 "org.freedesktop.systemd1.Manager",
2455 "ss", unit, "fail");
2457 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) ||
2458 sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) {
2463 sd_bus_error_free(error);
2474 r = sd_bus_message_read(reply, "o", &j);
2488 int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error) {
2489 _cleanup_free_ char *path = NULL;
2495 path = unit_dbus_path_from_name(scope);
2499 r = sd_bus_call_method(
2501 "org.freedesktop.systemd1",
2503 "org.freedesktop.systemd1.Scope",
2509 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) ||
2510 sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED) ||
2511 sd_bus_error_has_name(error, BUS_ERROR_SCOPE_NOT_RUNNING)) {
2512 sd_bus_error_free(error);
2522 int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error) {
2526 return sd_bus_call_method(
2528 "org.freedesktop.systemd1",
2529 "/org/freedesktop/systemd1",
2530 "org.freedesktop.systemd1.Manager",
2534 "ssi", unit, who == KILL_LEADER ? "main" : "all", signo);
2537 int manager_unit_is_active(Manager *manager, const char *unit) {
2538 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2539 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2540 _cleanup_free_ char *path = NULL;
2547 path = unit_dbus_path_from_name(unit);
2551 r = sd_bus_get_property(
2553 "org.freedesktop.systemd1",
2555 "org.freedesktop.systemd1.Unit",
2561 /* systemd might have droppped off momentarily, let's
2562 * not make this an error */
2563 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) ||
2564 sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED))
2567 /* If the unit is already unloaded then it's not
2569 if (sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT) ||
2570 sd_bus_error_has_name(&error, BUS_ERROR_LOAD_FAILED))
2576 r = sd_bus_message_read(reply, "s", &state);
2580 return !streq(state, "inactive") && !streq(state, "failed");
2583 int manager_job_is_active(Manager *manager, const char *path) {
2584 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2585 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2591 r = sd_bus_get_property(
2593 "org.freedesktop.systemd1",
2595 "org.freedesktop.systemd1.Job",
2601 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) ||
2602 sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED))
2605 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_OBJECT))
2611 /* We don't actually care about the state really. The fact
2612 * that we could read the job state is enough for us */