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 General Public License as published by
10 the Free Software Foundation; either version 2 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 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
28 #include "dbus-common.h"
33 #define BUS_MANAGER_INTERFACE \
34 " <interface name=\"org.freedesktop.login1.Manager\">\n" \
35 " <method name=\"GetSession\">\n" \
36 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
37 " <arg name=\"session\" type=\"o\" direction=\"out\"/>\n" \
39 " <method name=\"GetUser\">\n" \
40 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
41 " <arg name=\"user\" type=\"o\" direction=\"out\"/>\n" \
43 " <method name=\"GetSeat\">\n" \
44 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
45 " <arg name=\"seat\" type=\"o\" direction=\"out\"/>\n" \
47 " <method name=\"ListSessions\">\n" \
48 " <arg name=\"sessions\" type=\"a(susso)\" direction=\"out\"/>\n" \
50 " <method name=\"ListUsers\">\n" \
51 " <arg name=\"users\" type=\"a(uso)\" direction=\"out\"/>\n" \
53 " <method name=\"ListSeats\">\n" \
54 " <arg name=\"seats\" type=\"a(so)\" direction=\"out\"/>\n" \
56 " <method name=\"CreateSession\">\n" \
57 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
58 " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \
59 " <arg name=\"sevice\" type=\"s\" direction=\"in\"/>\n" \
60 " <arg name=\"type\" type=\"s\" direction=\"in\"/>\n" \
61 " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
62 " <arg name=\"vtnr\" type=\"u\" direction=\"in\"/>\n" \
63 " <arg name=\"tty\" type=\"s\" direction=\"in\"/>\n" \
64 " <arg name=\"display\" type=\"s\" direction=\"in\"/>\n" \
65 " <arg name=\"remote\" type=\"b\" direction=\"in\"/>\n" \
66 " <arg name=\"remote_user\" type=\"s\" direction=\"in\"/>\n" \
67 " <arg name=\"remote_host\" type=\"s\" direction=\"in\"/>\n" \
68 " <arg name=\"controllers\" type=\"as\" direction=\"in\"/>\n" \
69 " <arg name=\"reset_controllers\" type=\"as\" direction=\"in\"/>\n" \
70 " <arg name=\"kill_processes\" type=\"b\" direction=\"in\"/>\n" \
71 " <arg name=\"id\" type=\"s\" direction=\"out\"/>\n" \
72 " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \
73 " <arg name=\"runtime_path\" type=\"o\" direction=\"out\"/>\n" \
74 " <arg name=\"fd\" type=\"h\" direction=\"out\"/>\n" \
75 " <arg name=\"seat\" type=\"s\" direction=\"out\"/>\n" \
76 " <arg name=\"vtnr\" type=\"u\" direction=\"out\"/>\n" \
78 " <method name=\"ActivateSession\">\n" \
79 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
81 " <method name=\"LockSession\">\n" \
82 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
84 " <method name=\"UnlockSession\">\n" \
85 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
87 " <method name=\"KillSession\">\n" \
88 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
89 " <arg name=\"who\" type=\"s\"/>\n" \
90 " <arg name=\"signal\" type=\"s\"/>\n" \
92 " <method name=\"KillUser\">\n" \
93 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
94 " <arg name=\"signal\" type=\"s\"/>\n" \
96 " <method name=\"TerminateSession\">\n" \
97 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
99 " <method name=\"TerminateUser\">\n" \
100 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
102 " <method name=\"TerminateSeat\">\n" \
103 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
105 " <method name=\"SetUserLinger\">\n" \
106 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
107 " <arg name=\"b\" type=\"b\" direction=\"in\"/>\n" \
108 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
110 " <method name=\"AttachDevice\">\n" \
111 " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
112 " <arg name=\"sysfs\" type=\"s\" direction=\"in\"/>\n" \
113 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
115 " <method name=\"FlushDevices\">\n" \
116 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
118 " <method name=\"PowerOff\">\n" \
119 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
121 " <method name=\"Reboot\">\n" \
122 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
124 " <signal name=\"SessionNew\">\n" \
125 " <arg name=\"id\" type=\"s\"/>\n" \
126 " <arg name=\"path\" type=\"o\"/>\n" \
128 " <signal name=\"SessionRemoved\">\n" \
129 " <arg name=\"id\" type=\"s\"/>\n" \
130 " <arg name=\"path\" type=\"o\"/>\n" \
132 " <signal name=\"UserNew\">\n" \
133 " <arg name=\"uid\" type=\"u\"/>\n" \
134 " <arg name=\"path\" type=\"o\"/>\n" \
136 " <signal name=\"UserRemoved\">\n" \
137 " <arg name=\"uid\" type=\"u\"/>\n" \
138 " <arg name=\"path\" type=\"o\"/>\n" \
140 " <signal name=\"SeatNew\">\n" \
141 " <arg name=\"id\" type=\"s\"/>\n" \
142 " <arg name=\"path\" type=\"o\"/>\n" \
144 " <signal name=\"SeatRemoved\">\n" \
145 " <arg name=\"id\" type=\"s\"/>\n" \
146 " <arg name=\"path\" type=\"o\"/>\n" \
148 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
149 " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
150 " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
151 " <property name=\"NAutoVTs\" type=\"u\" access=\"read\"/>\n" \
152 " <property name=\"KillOnlyUsers\" type=\"as\" access=\"read\"/>\n" \
153 " <property name=\"KillExcludeUsers\" type=\"as\" access=\"read\"/>\n" \
154 " <property name=\"KillUserProcesses\" type=\"b\" access=\"read\"/>\n" \
155 " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
156 " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
157 " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
160 #define INTROSPECTION_BEGIN \
161 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
163 BUS_MANAGER_INTERFACE \
164 BUS_PROPERTIES_INTERFACE \
166 BUS_INTROSPECTABLE_INTERFACE
168 #define INTROSPECTION_END \
171 #define INTERFACES_LIST \
172 BUS_GENERIC_INTERFACES_LIST \
173 "org.freedesktop.login1.Manager\0"
175 static int bus_manager_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
183 b = manager_get_idle_hint(m, NULL) > 0;
184 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
190 static int bus_manager_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
199 manager_get_idle_hint(m, &t);
200 u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
202 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
208 static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMessage **_reply) {
209 Session *session = NULL;
211 const char *type, *seat, *tty, *display, *remote_user, *remote_host, *service;
212 uint32_t uid, leader, audit_id = 0;
213 dbus_bool_t remote, kill_processes;
214 char **controllers = NULL, **reset_controllers = NULL;
217 DBusMessageIter iter;
222 DBusMessage *reply = NULL;
229 if (!dbus_message_iter_init(message, &iter) ||
230 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
233 dbus_message_iter_get_basic(&iter, &uid);
235 if (!dbus_message_iter_next(&iter) ||
236 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
239 dbus_message_iter_get_basic(&iter, &leader);
242 !dbus_message_iter_next(&iter) ||
243 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
246 dbus_message_iter_get_basic(&iter, &service);
248 if (!dbus_message_iter_next(&iter) ||
249 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
252 dbus_message_iter_get_basic(&iter, &type);
253 t = session_type_from_string(type);
256 !dbus_message_iter_next(&iter) ||
257 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
260 dbus_message_iter_get_basic(&iter, &seat);
265 s = hashmap_get(m->seats, seat);
270 if (!dbus_message_iter_next(&iter) ||
271 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
274 dbus_message_iter_get_basic(&iter, &vtnr);
276 if (!dbus_message_iter_next(&iter) ||
277 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
280 dbus_message_iter_get_basic(&iter, &tty);
282 if (tty_is_vc(tty)) {
287 else if (s != m->vtconsole)
290 v = vtnr_from_tty(tty);
293 return v < 0 ? v : -EINVAL;
297 else if (vtnr != (uint32_t) v)
300 } else if (!isempty(tty) && s && seat_is_vtconsole(s))
304 if (seat_is_vtconsole(s)) {
305 if (vtnr <= 0 || vtnr > 63)
313 if (!dbus_message_iter_next(&iter) ||
314 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
317 dbus_message_iter_get_basic(&iter, &display);
319 if (!dbus_message_iter_next(&iter) ||
320 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN)
323 dbus_message_iter_get_basic(&iter, &remote);
325 if (!dbus_message_iter_next(&iter) ||
326 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
329 dbus_message_iter_get_basic(&iter, &remote_user);
331 if (!dbus_message_iter_next(&iter) ||
332 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
335 dbus_message_iter_get_basic(&iter, &remote_host);
337 if (!dbus_message_iter_next(&iter) ||
338 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
339 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING)
342 r = bus_parse_strv_iter(&iter, &controllers);
346 if (strv_contains(controllers, "systemd") ||
347 !dbus_message_iter_next(&iter) ||
348 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
349 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING) {
354 r = bus_parse_strv_iter(&iter, &reset_controllers);
358 if (strv_contains(reset_controllers, "systemd") ||
359 !dbus_message_iter_next(&iter) ||
360 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) {
365 dbus_message_iter_get_basic(&iter, &kill_processes);
367 r = manager_add_user_by_uid(m, uid, &user);
371 audit_session_from_pid(leader, &audit_id);
374 asprintf(&id, "%lu", (unsigned long) audit_id);
381 session = hashmap_get(m->sessions, id);
386 fifo_fd = session_create_fifo(session);
392 /* Session already exists, client is probably
393 * something like "su" which changes uid but
394 * is still the same audit session */
396 reply = dbus_message_new_method_return(message);
402 p = session_bus_path(session);
408 b = dbus_message_append_args(
410 DBUS_TYPE_STRING, &session->id,
411 DBUS_TYPE_OBJECT_PATH, &p,
412 DBUS_TYPE_STRING, &session->user->runtime_path,
413 DBUS_TYPE_UNIX_FD, &fifo_fd,
422 close_nointr_nofail(fifo_fd);
425 strv_free(controllers);
426 strv_free(reset_controllers);
434 asprintf(&id, "c%lu", ++m->session_counter);
441 } while (hashmap_get(m->sessions, id));
444 r = manager_add_session(m, user, id, &session);
449 session->leader = leader;
450 session->audit_id = audit_id;
452 session->remote = remote;
453 session->controllers = controllers;
454 session->reset_controllers = reset_controllers;
455 session->kill_processes = kill_processes;
456 session->vtnr = vtnr;
458 controllers = reset_controllers = NULL;
461 session->tty = strdup(tty);
468 if (!isempty(display)) {
469 session->display = strdup(display);
470 if (!session->display) {
476 if (!isempty(remote_user)) {
477 session->remote_user = strdup(remote_user);
478 if (!session->remote_user) {
484 if (!isempty(remote_host)) {
485 session->remote_host = strdup(remote_host);
486 if (!session->remote_host) {
492 if (!isempty(service)) {
493 session->service = strdup(service);
494 if (!session->service) {
500 fifo_fd = session_create_fifo(session);
507 r = seat_attach_session(s, session);
512 r = session_start(session);
516 reply = dbus_message_new_method_return(message);
522 p = session_bus_path(session);
528 seat = s ? s->id : "";
529 b = dbus_message_append_args(
531 DBUS_TYPE_STRING, &session->id,
532 DBUS_TYPE_OBJECT_PATH, &p,
533 DBUS_TYPE_STRING, &session->user->runtime_path,
534 DBUS_TYPE_UNIX_FD, &fifo_fd,
535 DBUS_TYPE_STRING, &seat,
536 DBUS_TYPE_UINT32, &vtnr,
545 close_nointr_nofail(fifo_fd);
551 strv_free(controllers);
552 strv_free(reset_controllers);
555 session_add_to_gc_queue(session);
558 user_add_to_gc_queue(user);
561 close_nointr_nofail(fifo_fd);
564 dbus_message_unref(reply);
569 static int trigger_device(Manager *m, struct udev_device *d) {
570 struct udev_enumerate *e;
571 struct udev_list_entry *first, *item;
576 e = udev_enumerate_new(m->udev);
583 if (udev_enumerate_add_match_parent(e, d) < 0) {
589 if (udev_enumerate_scan_devices(e) < 0) {
594 first = udev_enumerate_get_list_entry(e);
595 udev_list_entry_foreach(item, first) {
599 p = udev_list_entry_get_name(item);
601 t = strappend(p, "/uevent");
607 write_one_line_file(t, "change");
615 udev_enumerate_unref(e);
620 static int attach_device(Manager *m, const char *seat, const char *sysfs) {
621 struct udev_device *d;
622 char *rule = NULL, *file = NULL;
623 const char *id_for_seat;
630 d = udev_device_new_from_syspath(m->udev, sysfs);
634 if (!udev_device_has_tag(d, "seat")) {
639 id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT");
645 if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0) {
650 if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0) {
655 mkdir_p("/etc/udev/rules.d", 0755);
656 r = write_one_line_file_atomic(file, rule);
660 r = trigger_device(m, d);
667 udev_device_unref(d);
672 static int flush_devices(Manager *m) {
677 d = opendir("/etc/udev/rules.d");
680 log_warning("Failed to open /etc/udev/rules.d: %m");
684 while ((de = readdir(d))) {
686 if (!dirent_is_file(de))
689 if (!startswith(de->d_name, "72-seat-"))
692 if (!endswith(de->d_name, ".rules"))
695 if (unlinkat(dirfd(d), de->d_name, 0) < 0)
696 log_warning("Failed to unlink %s: %m", de->d_name);
702 return trigger_device(m, NULL);
705 static DBusHandlerResult manager_message_handler(
706 DBusConnection *connection,
707 DBusMessage *message,
710 Manager *m = userdata;
712 const BusProperty properties[] = {
713 { "org.freedesktop.login1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_path },
714 { "org.freedesktop.login1.Manager", "Controllers", bus_property_append_strv, "as", m->controllers },
715 { "org.freedesktop.login1.Manager", "ResetControllers", bus_property_append_strv, "as", m->reset_controllers },
716 { "org.freedesktop.login1.Manager", "NAutoVTs", bus_property_append_unsigned, "u", &m->n_autovts },
717 { "org.freedesktop.login1.Manager", "KillOnlyUsers", bus_property_append_strv, "as", m->kill_only_users },
718 { "org.freedesktop.login1.Manager", "KillExcludeUsers", bus_property_append_strv, "as", m->kill_exclude_users },
719 { "org.freedesktop.login1.Manager", "KillUserProcesses", bus_property_append_bool, "b", &m->kill_user_processes },
720 { "org.freedesktop.login1.Manager", "IdleHint", bus_manager_append_idle_hint, "b", m },
721 { "org.freedesktop.login1.Manager", "IdleSinceHint", bus_manager_append_idle_hint_since, "t", m },
722 { "org.freedesktop.login1.Manager", "IdleSinceHintMonotonic", bus_manager_append_idle_hint_since, "t", m },
723 { NULL, NULL, NULL, NULL, NULL }
727 DBusMessage *reply = NULL;
734 dbus_error_init(&error);
736 if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSession")) {
742 if (!dbus_message_get_args(
745 DBUS_TYPE_STRING, &name,
747 return bus_send_error_reply(connection, message, &error, -EINVAL);
749 session = hashmap_get(m->sessions, name);
751 return bus_send_error_reply(connection, message, &error, -ENOENT);
753 reply = dbus_message_new_method_return(message);
757 p = session_bus_path(session);
761 b = dbus_message_append_args(
763 DBUS_TYPE_OBJECT_PATH, &p,
770 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetUser")) {
776 if (!dbus_message_get_args(
779 DBUS_TYPE_UINT32, &uid,
781 return bus_send_error_reply(connection, message, &error, -EINVAL);
783 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
785 return bus_send_error_reply(connection, message, &error, -ENOENT);
787 reply = dbus_message_new_method_return(message);
791 p = user_bus_path(user);
795 b = dbus_message_append_args(
797 DBUS_TYPE_OBJECT_PATH, &p,
804 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSeat")) {
810 if (!dbus_message_get_args(
813 DBUS_TYPE_STRING, &name,
815 return bus_send_error_reply(connection, message, &error, -EINVAL);
817 seat = hashmap_get(m->seats, name);
819 return bus_send_error_reply(connection, message, &error, -ENOENT);
821 reply = dbus_message_new_method_return(message);
825 p = seat_bus_path(seat);
829 b = dbus_message_append_args(
831 DBUS_TYPE_OBJECT_PATH, &p,
838 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSessions")) {
842 DBusMessageIter iter, sub;
843 const char *empty = "";
845 reply = dbus_message_new_method_return(message);
849 dbus_message_iter_init_append(reply, &iter);
851 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(susso)", &sub))
854 HASHMAP_FOREACH(session, m->sessions, i) {
855 DBusMessageIter sub2;
858 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
861 uid = session->user->uid;
863 p = session_bus_path(session);
867 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
868 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
869 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->user->name) ||
870 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, session->seat ? (const char**) &session->seat->id : &empty) ||
871 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
878 if (!dbus_message_iter_close_container(&sub, &sub2))
882 if (!dbus_message_iter_close_container(&iter, &sub))
885 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListUsers")) {
889 DBusMessageIter iter, sub;
891 reply = dbus_message_new_method_return(message);
895 dbus_message_iter_init_append(reply, &iter);
897 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(uso)", &sub))
900 HASHMAP_FOREACH(user, m->users, i) {
901 DBusMessageIter sub2;
904 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
909 p = user_bus_path(user);
913 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
914 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &user->name) ||
915 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
922 if (!dbus_message_iter_close_container(&sub, &sub2))
926 if (!dbus_message_iter_close_container(&iter, &sub))
929 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSeats")) {
933 DBusMessageIter iter, sub;
935 reply = dbus_message_new_method_return(message);
939 dbus_message_iter_init_append(reply, &iter);
941 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(so)", &sub))
944 HASHMAP_FOREACH(seat, m->seats, i) {
945 DBusMessageIter sub2;
947 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
950 p = seat_bus_path(seat);
954 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &seat->id) ||
955 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
962 if (!dbus_message_iter_close_container(&sub, &sub2))
966 if (!dbus_message_iter_close_container(&iter, &sub))
969 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CreateSession")) {
971 r = bus_manager_create_session(m, message, &reply);
976 return bus_send_error_reply(connection, message, &error, r);
978 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ActivateSession")) {
982 if (!dbus_message_get_args(
985 DBUS_TYPE_STRING, &name,
987 return bus_send_error_reply(connection, message, &error, -EINVAL);
989 session = hashmap_get(m->sessions, name);
991 return bus_send_error_reply(connection, message, &error, -ENOENT);
993 r = session_activate(session);
995 return bus_send_error_reply(connection, message, NULL, r);
997 reply = dbus_message_new_method_return(message);
1001 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "LockSession") ||
1002 dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "UnlockSession")) {
1006 if (!dbus_message_get_args(
1009 DBUS_TYPE_STRING, &name,
1011 return bus_send_error_reply(connection, message, &error, -EINVAL);
1013 session = hashmap_get(m->sessions, name);
1015 return bus_send_error_reply(connection, message, &error, -ENOENT);
1017 if (session_send_lock(session, streq(dbus_message_get_member(message), "LockSession")) < 0)
1020 reply = dbus_message_new_method_return(message);
1024 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "KillSession")) {
1031 if (!dbus_message_get_args(
1034 DBUS_TYPE_STRING, &name,
1035 DBUS_TYPE_STRING, &swho,
1036 DBUS_TYPE_INT32, &signo,
1038 return bus_send_error_reply(connection, message, &error, -EINVAL);
1043 who = kill_who_from_string(swho);
1045 return bus_send_error_reply(connection, message, &error, -EINVAL);
1048 if (signo <= 0 || signo >= _NSIG)
1049 return bus_send_error_reply(connection, message, &error, -EINVAL);
1051 session = hashmap_get(m->sessions, name);
1053 return bus_send_error_reply(connection, message, &error, -ENOENT);
1055 r = session_kill(session, who, signo);
1057 return bus_send_error_reply(connection, message, NULL, r);
1059 reply = dbus_message_new_method_return(message);
1063 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "KillUser")) {
1068 if (!dbus_message_get_args(
1071 DBUS_TYPE_UINT32, &uid,
1072 DBUS_TYPE_INT32, &signo,
1074 return bus_send_error_reply(connection, message, &error, -EINVAL);
1076 if (signo <= 0 || signo >= _NSIG)
1077 return bus_send_error_reply(connection, message, &error, -EINVAL);
1079 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1081 return bus_send_error_reply(connection, message, &error, -ENOENT);
1083 r = user_kill(user, signo);
1085 return bus_send_error_reply(connection, message, NULL, r);
1087 reply = dbus_message_new_method_return(message);
1091 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSession")) {
1095 if (!dbus_message_get_args(
1098 DBUS_TYPE_STRING, &name,
1100 return bus_send_error_reply(connection, message, &error, -EINVAL);
1102 session = hashmap_get(m->sessions, name);
1104 return bus_send_error_reply(connection, message, &error, -ENOENT);
1106 r = session_stop(session);
1108 return bus_send_error_reply(connection, message, NULL, r);
1110 reply = dbus_message_new_method_return(message);
1114 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateUser")) {
1118 if (!dbus_message_get_args(
1121 DBUS_TYPE_UINT32, &uid,
1123 return bus_send_error_reply(connection, message, &error, -EINVAL);
1125 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1127 return bus_send_error_reply(connection, message, &error, -ENOENT);
1129 r = user_stop(user);
1131 return bus_send_error_reply(connection, message, NULL, r);
1133 reply = dbus_message_new_method_return(message);
1137 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSeat")) {
1141 if (!dbus_message_get_args(
1144 DBUS_TYPE_STRING, &name,
1146 return bus_send_error_reply(connection, message, &error, -EINVAL);
1148 seat = hashmap_get(m->seats, name);
1150 return bus_send_error_reply(connection, message, &error, -ENOENT);
1152 r = seat_stop_sessions(seat);
1154 return bus_send_error_reply(connection, message, NULL, r);
1156 reply = dbus_message_new_method_return(message);
1160 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "SetUserLinger")) {
1163 dbus_bool_t b, interactive;
1166 if (!dbus_message_get_args(
1169 DBUS_TYPE_UINT32, &uid,
1170 DBUS_TYPE_BOOLEAN, &b,
1171 DBUS_TYPE_BOOLEAN, &interactive,
1173 return bus_send_error_reply(connection, message, &error, -EINVAL);
1178 return bus_send_error_reply(connection, message, NULL, errno ? -errno : -EINVAL);
1180 r = verify_polkit(connection, message, "org.freedesktop.login1.set-user-linger", interactive, &error);
1182 return bus_send_error_reply(connection, message, &error, r);
1184 r = safe_mkdir("/var/lib/systemd/linger", 0755, 0, 0);
1186 return bus_send_error_reply(connection, message, &error, r);
1188 path = strappend("/var/lib/systemd/linger/", pw->pw_name);
1199 return bus_send_error_reply(connection, message, &error, r);
1201 if (manager_add_user_by_uid(m, uid, &u) >= 0)
1210 if (r < 0 && errno != ENOENT)
1211 return bus_send_error_reply(connection, message, &error, -errno);
1213 u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1215 user_add_to_gc_queue(u);
1218 reply = dbus_message_new_method_return(message);
1222 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "AttachDevice")) {
1223 const char *sysfs, *seat;
1224 dbus_bool_t interactive;
1226 if (!dbus_message_get_args(
1229 DBUS_TYPE_STRING, &seat,
1230 DBUS_TYPE_STRING, &sysfs,
1231 DBUS_TYPE_BOOLEAN, &interactive,
1233 return bus_send_error_reply(connection, message, &error, -EINVAL);
1235 if (!path_startswith(sysfs, "/sys") || !seat_name_is_valid(seat))
1236 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1238 r = verify_polkit(connection, message, "org.freedesktop.login1.attach-device", interactive, &error);
1240 return bus_send_error_reply(connection, message, &error, r);
1242 r = attach_device(m, seat, sysfs);
1244 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1246 reply = dbus_message_new_method_return(message);
1251 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "FlushDevices")) {
1252 dbus_bool_t interactive;
1254 if (!dbus_message_get_args(
1257 DBUS_TYPE_BOOLEAN, &interactive,
1259 return bus_send_error_reply(connection, message, &error, -EINVAL);
1261 r = verify_polkit(connection, message, "org.freedesktop.login1.flush-devices", interactive, &error);
1263 return bus_send_error_reply(connection, message, &error, r);
1265 r = flush_devices(m);
1267 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1269 reply = dbus_message_new_method_return(message);
1273 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "PowerOff") ||
1274 dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "Reboot")) {
1275 dbus_bool_t interactive;
1276 bool multiple_sessions;
1277 DBusMessage *forward, *freply;
1279 const char *mode = "replace";
1282 if (!dbus_message_get_args(
1285 DBUS_TYPE_BOOLEAN, &interactive,
1287 return bus_send_error_reply(connection, message, &error, -EINVAL);
1289 multiple_sessions = hashmap_size(m->sessions) > 1;
1291 if (!multiple_sessions) {
1294 /* Hmm, there's only one session, but let's
1295 * make sure it actually belongs to the user
1296 * who is asking. If not, better be safe than
1299 s = hashmap_first(m->sessions);
1303 ul = dbus_bus_get_unix_user(connection, dbus_message_get_sender(message), &error);
1304 if (ul == (unsigned long) -1)
1305 return bus_send_error_reply(connection, message, &error, -EIO);
1307 multiple_sessions = s->user->uid != ul;
1311 if (streq(dbus_message_get_member(message), "PowerOff")) {
1312 if (multiple_sessions)
1313 action = "org.freedesktop.login1.power-off-multiple-sessions";
1315 action = "org.freedesktop.login1.power-off";
1317 name = SPECIAL_POWEROFF_TARGET;
1319 if (multiple_sessions)
1320 action = "org.freedesktop.login1.reboot-multiple-sessions";
1322 action = "org.freedesktop.login1.reboot";
1324 name = SPECIAL_REBOOT_TARGET;
1327 r = verify_polkit(connection, message, action, interactive, &error);
1329 return bus_send_error_reply(connection, message, &error, r);
1331 forward = dbus_message_new_method_call(
1332 "org.freedesktop.systemd1",
1333 "/org/freedesktop/systemd1",
1334 "org.freedesktop.systemd1.Manager",
1337 return bus_send_error_reply(connection, message, NULL, -ENOMEM);
1339 if (!dbus_message_append_args(forward,
1340 DBUS_TYPE_STRING, &name,
1341 DBUS_TYPE_STRING, &mode,
1342 DBUS_TYPE_INVALID)) {
1343 dbus_message_unref(forward);
1344 return bus_send_error_reply(connection, message, NULL, -ENOMEM);
1347 freply = dbus_connection_send_with_reply_and_block(connection, forward, -1, &error);
1348 dbus_message_unref(forward);
1351 return bus_send_error_reply(connection, message, &error, -EIO);
1353 dbus_message_unref(freply);
1355 reply = dbus_message_new_method_return(message);
1359 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
1360 char *introspection = NULL;
1369 if (!(reply = dbus_message_new_method_return(message)))
1372 /* We roll our own introspection code here, instead of
1373 * relying on bus_default_message_handler() because we
1374 * need to generate our introspection string
1377 if (!(f = open_memstream(&introspection, &size)))
1380 fputs(INTROSPECTION_BEGIN, f);
1382 HASHMAP_FOREACH(seat, m->seats, i) {
1383 p = bus_path_escape(seat->id);
1386 fprintf(f, "<node name=\"seat/%s\"/>", p);
1391 HASHMAP_FOREACH(user, m->users, i)
1392 fprintf(f, "<node name=\"user/%llu\"/>", (unsigned long long) user->uid);
1394 HASHMAP_FOREACH(session, m->sessions, i) {
1395 p = bus_path_escape(session->id);
1398 fprintf(f, "<node name=\"session/%s\"/>", p);
1403 fputs(INTROSPECTION_END, f);
1407 free(introspection);
1416 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
1417 free(introspection);
1421 free(introspection);
1423 return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, properties);
1426 if (!dbus_connection_send(connection, reply, NULL))
1429 dbus_message_unref(reply);
1432 return DBUS_HANDLER_RESULT_HANDLED;
1436 dbus_message_unref(reply);
1438 dbus_error_free(&error);
1440 return DBUS_HANDLER_RESULT_NEED_MEMORY;
1443 const DBusObjectPathVTable bus_manager_vtable = {
1444 .message_function = manager_message_handler
1447 DBusHandlerResult bus_message_filter(
1448 DBusConnection *connection,
1449 DBusMessage *message,
1452 Manager *m = userdata;
1459 dbus_error_init(&error);
1461 if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Agent", "Released")) {
1464 if (!dbus_message_get_args(message, &error,
1465 DBUS_TYPE_STRING, &cgroup,
1467 log_error("Failed to parse Released message: %s", bus_error_message(&error));
1469 manager_cgroup_notify_empty(m, cgroup);
1472 dbus_error_free(&error);
1474 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1477 int manager_send_changed(Manager *manager, const char *properties) {
1483 m = bus_properties_changed_new("/org/freedesktop/login1", "org.freedesktop.login1.Manager", properties);
1487 if (!dbus_connection_send(manager->bus, m, NULL))
1494 dbus_message_unref(m);