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"
32 #define BUS_MANAGER_INTERFACE \
33 " <interface name=\"org.freedesktop.login1.Manager\">\n" \
34 " <method name=\"GetSession\">\n" \
35 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
36 " <arg name=\"session\" type=\"o\" direction=\"out\"/>\n" \
38 " <method name=\"GetUser\">\n" \
39 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
40 " <arg name=\"user\" type=\"o\" direction=\"out\"/>\n" \
42 " <method name=\"GetSeat\">\n" \
43 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
44 " <arg name=\"seat\" type=\"o\" direction=\"out\"/>\n" \
46 " <method name=\"ListSessions\">\n" \
47 " <arg name=\"sessions\" type=\"a(susso)\" direction=\"out\"/>\n" \
49 " <method name=\"ListUsers\">\n" \
50 " <arg name=\"users\" type=\"a(uso)\" direction=\"out\"/>\n" \
52 " <method name=\"ListSeats\">\n" \
53 " <arg name=\"seats\" type=\"a(so)\" direction=\"out\"/>\n" \
55 " <method name=\"CreateSession\">\n" \
56 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
57 " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \
58 " <arg name=\"sevice\" type=\"s\" direction=\"in\"/>\n" \
59 " <arg name=\"type\" type=\"s\" direction=\"in\"/>\n" \
60 " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
61 " <arg name=\"vtnr\" type=\"u\" direction=\"in\"/>\n" \
62 " <arg name=\"tty\" type=\"s\" direction=\"in\"/>\n" \
63 " <arg name=\"display\" type=\"s\" direction=\"in\"/>\n" \
64 " <arg name=\"remote\" type=\"b\" direction=\"in\"/>\n" \
65 " <arg name=\"remote_user\" type=\"s\" direction=\"in\"/>\n" \
66 " <arg name=\"remote_host\" type=\"s\" direction=\"in\"/>\n" \
67 " <arg name=\"controllers\" type=\"as\" direction=\"in\"/>\n" \
68 " <arg name=\"reset_controllers\" type=\"as\" direction=\"in\"/>\n" \
69 " <arg name=\"kill_processes\" type=\"b\" direction=\"in\"/>\n" \
70 " <arg name=\"id\" type=\"s\" direction=\"out\"/>\n" \
71 " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \
72 " <arg name=\"runtime_path\" type=\"o\" direction=\"out\"/>\n" \
73 " <arg name=\"fd\" type=\"h\" direction=\"out\"/>\n" \
75 " <method name=\"ActivateSession\">\n" \
76 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
78 " <method name=\"LockSession\">\n" \
79 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
81 " <method name=\"UnlockSession\">\n" \
82 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
84 " <method name=\"TerminateSession\">\n" \
85 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
87 " <method name=\"TerminateUser\">\n" \
88 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
90 " <method name=\"TerminateSeat\">\n" \
91 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
93 " <method name=\"SetUserLinger\">\n" \
94 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
95 " <arg name=\"b\" type=\"b\" direction=\"in\"/>\n" \
96 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
98 " <method name=\"AttachDevice\">\n" \
99 " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
100 " <arg name=\"sysfs\" type=\"s\" direction=\"in\"/>\n" \
101 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
103 " <method name=\"FlushDevices\">\n" \
104 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
106 " <signal name=\"SessionNew\">\n" \
107 " <arg name=\"id\" type=\"s\"/>\n" \
108 " <arg name=\"path\" type=\"o\"/>\n" \
110 " <signal name=\"SessionRemoved\">\n" \
111 " <arg name=\"id\" type=\"s\"/>\n" \
112 " <arg name=\"path\" type=\"o\"/>\n" \
114 " <signal name=\"UserNew\">\n" \
115 " <arg name=\"uid\" type=\"u\"/>\n" \
116 " <arg name=\"path\" type=\"o\"/>\n" \
118 " <signal name=\"UserRemoved\">\n" \
119 " <arg name=\"uid\" type=\"u\"/>\n" \
120 " <arg name=\"path\" type=\"o\"/>\n" \
122 " <signal name=\"SeatNew\">\n" \
123 " <arg name=\"id\" type=\"s\"/>\n" \
124 " <arg name=\"path\" type=\"o\"/>\n" \
126 " <signal name=\"SeatRemoved\">\n" \
127 " <arg name=\"id\" type=\"s\"/>\n" \
128 " <arg name=\"path\" type=\"o\"/>\n" \
130 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
131 " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
132 " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
133 " <property name=\"NAutoVTs\" type=\"u\" access=\"read\"/>\n" \
134 " <property name=\"KillOnlyUsers\" type=\"as\" access=\"read\"/>\n" \
135 " <property name=\"KillExcludeUsers\" type=\"as\" access=\"read\"/>\n" \
136 " <property name=\"KillUserProcesses\" type=\"b\" access=\"read\"/>\n" \
137 " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
138 " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
139 " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
142 #define INTROSPECTION_BEGIN \
143 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
145 BUS_MANAGER_INTERFACE \
146 BUS_PROPERTIES_INTERFACE \
148 BUS_INTROSPECTABLE_INTERFACE
150 #define INTROSPECTION_END \
153 #define INTERFACES_LIST \
154 BUS_GENERIC_INTERFACES_LIST \
155 "org.freedesktop.login1.Manager\0"
157 static int bus_manager_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
165 b = manager_get_idle_hint(m, NULL) > 0;
166 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
172 static int bus_manager_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
181 manager_get_idle_hint(m, &t);
182 u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
184 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
190 static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMessage **_reply) {
191 Session *session = NULL;
193 const char *type, *seat, *tty, *display, *remote_user, *remote_host, *service;
194 uint32_t uid, leader, audit_id = 0;
195 dbus_bool_t remote, kill_processes;
196 char **controllers = NULL, **reset_controllers = NULL;
199 DBusMessageIter iter;
204 DBusMessage *reply = NULL;
211 if (!dbus_message_iter_init(message, &iter) ||
212 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
215 dbus_message_iter_get_basic(&iter, &uid);
217 if (!dbus_message_iter_next(&iter) ||
218 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
221 dbus_message_iter_get_basic(&iter, &leader);
224 !dbus_message_iter_next(&iter) ||
225 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
228 dbus_message_iter_get_basic(&iter, &service);
230 if (!dbus_message_iter_next(&iter) ||
231 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
234 dbus_message_iter_get_basic(&iter, &type);
235 t = session_type_from_string(type);
238 !dbus_message_iter_next(&iter) ||
239 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
242 dbus_message_iter_get_basic(&iter, &seat);
247 s = hashmap_get(m->seats, seat);
252 if (!dbus_message_iter_next(&iter) ||
253 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
256 dbus_message_iter_get_basic(&iter, &vtnr);
258 if (!dbus_message_iter_next(&iter) ||
259 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
262 dbus_message_iter_get_basic(&iter, &tty);
264 if (tty_is_vc(tty)) {
269 else if (s != m->vtconsole)
272 v = vtnr_from_tty(tty);
275 return v < 0 ? v : -EINVAL;
279 else if (vtnr != (uint32_t) v)
282 } else if (!isempty(tty) && s && seat_is_vtconsole(s))
286 if (seat_is_vtconsole(s)) {
287 if (vtnr <= 0 || vtnr > 63)
295 if (!dbus_message_iter_next(&iter) ||
296 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
299 dbus_message_iter_get_basic(&iter, &display);
301 if (!dbus_message_iter_next(&iter) ||
302 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN)
305 dbus_message_iter_get_basic(&iter, &remote);
307 if (!dbus_message_iter_next(&iter) ||
308 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
311 dbus_message_iter_get_basic(&iter, &remote_user);
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, &remote_host);
319 if (!dbus_message_iter_next(&iter) ||
320 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
321 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING)
324 r = bus_parse_strv_iter(&iter, &controllers);
328 if (strv_contains(controllers, "systemd") ||
329 !dbus_message_iter_next(&iter) ||
330 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
331 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING) {
336 r = bus_parse_strv_iter(&iter, &reset_controllers);
340 if (strv_contains(reset_controllers, "systemd") ||
341 !dbus_message_iter_next(&iter) ||
342 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) {
347 dbus_message_iter_get_basic(&iter, &kill_processes);
349 r = manager_add_user_by_uid(m, uid, &user);
353 audit_session_from_pid(leader, &audit_id);
356 asprintf(&id, "%lu", (unsigned long) audit_id);
363 session = hashmap_get(m->sessions, id);
367 fifo_fd = session_create_fifo(session);
373 /* Session already exists, client is probably
374 * something like "su" which changes uid but
375 * is still the same audit session */
377 reply = dbus_message_new_method_return(message);
383 p = session_bus_path(session);
389 b = dbus_message_append_args(
391 DBUS_TYPE_STRING, &session->id,
392 DBUS_TYPE_OBJECT_PATH, &p,
393 DBUS_TYPE_STRING, &session->user->runtime_path,
394 DBUS_TYPE_UNIX_FD, &fifo_fd,
403 close_nointr_nofail(fifo_fd);
412 asprintf(&id, "c%lu", ++m->session_counter);
419 } while (hashmap_get(m->sessions, id));
422 r = manager_add_session(m, user, id, &session);
427 session->leader = leader;
428 session->audit_id = audit_id;
430 session->remote = remote;
431 session->controllers = controllers;
432 session->reset_controllers = reset_controllers;
433 session->kill_processes = kill_processes;
434 session->vtnr = vtnr;
436 controllers = reset_controllers = NULL;
439 session->tty = strdup(tty);
446 if (!isempty(display)) {
447 session->display = strdup(display);
448 if (!session->display) {
454 if (!isempty(remote_user)) {
455 session->remote_user = strdup(remote_user);
456 if (!session->remote_user) {
462 if (!isempty(remote_host)) {
463 session->remote_host = strdup(remote_host);
464 if (!session->remote_host) {
470 if (!isempty(service)) {
471 session->service = strdup(service);
472 if (!session->service) {
478 fifo_fd = session_create_fifo(session);
485 r = seat_attach_session(s, session);
490 r = session_start(session);
494 reply = dbus_message_new_method_return(message);
500 p = session_bus_path(session);
506 b = dbus_message_append_args(
508 DBUS_TYPE_STRING, &session->id,
509 DBUS_TYPE_OBJECT_PATH, &p,
510 DBUS_TYPE_STRING, &session->user->runtime_path,
511 DBUS_TYPE_UNIX_FD, &fifo_fd,
520 close_nointr_nofail(fifo_fd);
526 strv_free(controllers);
527 strv_free(reset_controllers);
530 session_add_to_gc_queue(session);
533 user_add_to_gc_queue(user);
536 close_nointr_nofail(fifo_fd);
539 dbus_message_unref(reply);
544 static bool device_has_tag(struct udev_device *d, const char *tag) {
545 struct udev_list_entry *first, *item;
551 udev_device_get_is_initialized(d);
553 first = udev_device_get_tags_list_entry(d);
554 udev_list_entry_foreach(item, first)
555 if (streq(udev_list_entry_get_name(item), tag))
561 static int trigger_device(Manager *m, const char *prefix) {
562 struct udev_enumerate *e;
563 struct udev_list_entry *first, *item;
568 e = udev_enumerate_new(m->udev);
574 if (udev_enumerate_scan_devices(e) < 0) {
579 first = udev_enumerate_get_list_entry(e);
580 udev_list_entry_foreach(item, first) {
584 p = udev_list_entry_get_name(item);
586 if (prefix && !path_startswith(p, prefix))
589 t = strappend(p, "/uevent");
595 write_one_line_file(t, "change");
603 udev_enumerate_unref(e);
608 static int attach_device(Manager *m, const char *seat, const char *sysfs) {
609 struct udev_device *d;
610 char *rule = NULL, *file = NULL;
611 const char *id_for_seat;
618 d = udev_device_new_from_syspath(m->udev, sysfs);
622 if (!device_has_tag(d, "seat")) {
627 id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT");
633 if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0) {
638 if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0) {
643 mkdir_p("/etc/udev/rules.d", 0755);
644 r = write_one_line_file_atomic(file, rule);
648 r = trigger_device(m, sysfs);
655 udev_device_unref(d);
660 static int flush_devices(Manager *m) {
665 d = opendir("/etc/udev/rules.d");
668 log_warning("Failed to open /etc/udev/rules.d: %m");
672 while ((de = readdir(d))) {
674 if (!dirent_is_file(de))
677 if (!startswith(de->d_name, "72-seat-"))
680 if (!endswith(de->d_name, ".rules"))
683 if (unlinkat(dirfd(d), de->d_name, 0) < 0)
684 log_warning("Failed to unlink %s: %m", de->d_name);
690 return trigger_device(m, NULL);
693 static DBusHandlerResult manager_message_handler(
694 DBusConnection *connection,
695 DBusMessage *message,
698 Manager *m = userdata;
700 const BusProperty properties[] = {
701 { "org.freedesktop.login1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_path },
702 { "org.freedesktop.login1.Manager", "Controllers", bus_property_append_strv, "as", m->controllers },
703 { "org.freedesktop.login1.Manager", "ResetControllers", bus_property_append_strv, "as", m->reset_controllers },
704 { "org.freedesktop.login1.Manager", "NAutoVTs", bus_property_append_unsigned, "u", &m->n_autovts },
705 { "org.freedesktop.login1.Manager", "KillOnlyUsers", bus_property_append_strv, "as", m->kill_only_users },
706 { "org.freedesktop.login1.Manager", "KillExcludeUsers", bus_property_append_strv, "as", m->kill_exclude_users },
707 { "org.freedesktop.login1.Manager", "KillUserProcesses", bus_property_append_bool, "b", &m->kill_user_processes },
708 { "org.freedesktop.login1.Manager", "IdleHint", bus_manager_append_idle_hint, "b", m },
709 { "org.freedesktop.login1.Manager", "IdleSinceHint", bus_manager_append_idle_hint_since, "t", m },
710 { "org.freedesktop.login1.Manager", "IdleSinceHintMonotonic", bus_manager_append_idle_hint_since, "t", m },
711 { NULL, NULL, NULL, NULL, NULL }
715 DBusMessage *reply = NULL;
722 dbus_error_init(&error);
724 if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSession")) {
730 if (!dbus_message_get_args(
733 DBUS_TYPE_STRING, &name,
735 return bus_send_error_reply(connection, message, &error, -EINVAL);
737 session = hashmap_get(m->sessions, name);
739 return bus_send_error_reply(connection, message, &error, -ENOENT);
741 reply = dbus_message_new_method_return(message);
745 p = session_bus_path(session);
749 b = dbus_message_append_args(
751 DBUS_TYPE_OBJECT_PATH, &p,
758 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetUser")) {
764 if (!dbus_message_get_args(
767 DBUS_TYPE_UINT32, &uid,
769 return bus_send_error_reply(connection, message, &error, -EINVAL);
771 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
773 return bus_send_error_reply(connection, message, &error, -ENOENT);
775 reply = dbus_message_new_method_return(message);
779 p = user_bus_path(user);
783 b = dbus_message_append_args(
785 DBUS_TYPE_OBJECT_PATH, &p,
792 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSeat")) {
798 if (!dbus_message_get_args(
801 DBUS_TYPE_STRING, &name,
803 return bus_send_error_reply(connection, message, &error, -EINVAL);
805 seat = hashmap_get(m->seats, name);
807 return bus_send_error_reply(connection, message, &error, -ENOENT);
809 reply = dbus_message_new_method_return(message);
813 p = seat_bus_path(seat);
817 b = dbus_message_append_args(
819 DBUS_TYPE_OBJECT_PATH, &p,
826 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSessions")) {
830 DBusMessageIter iter, sub;
831 const char *empty = "";
833 reply = dbus_message_new_method_return(message);
837 dbus_message_iter_init_append(reply, &iter);
839 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(susso)", &sub))
842 HASHMAP_FOREACH(session, m->sessions, i) {
843 DBusMessageIter sub2;
846 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
849 uid = session->user->uid;
851 p = session_bus_path(session);
855 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
856 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
857 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->user->name) ||
858 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, session->seat ? (const char**) &session->seat->id : &empty) ||
859 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
866 if (!dbus_message_iter_close_container(&sub, &sub2))
870 if (!dbus_message_iter_close_container(&iter, &sub))
873 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListUsers")) {
877 DBusMessageIter iter, sub;
879 reply = dbus_message_new_method_return(message);
883 dbus_message_iter_init_append(reply, &iter);
885 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(uso)", &sub))
888 HASHMAP_FOREACH(user, m->users, i) {
889 DBusMessageIter sub2;
892 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
897 p = user_bus_path(user);
901 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
902 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &user->name) ||
903 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
910 if (!dbus_message_iter_close_container(&sub, &sub2))
914 if (!dbus_message_iter_close_container(&iter, &sub))
917 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSeats")) {
921 DBusMessageIter iter, sub;
923 reply = dbus_message_new_method_return(message);
927 dbus_message_iter_init_append(reply, &iter);
929 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(so)", &sub))
932 HASHMAP_FOREACH(seat, m->seats, i) {
933 DBusMessageIter sub2;
935 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
938 p = seat_bus_path(seat);
942 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &seat->id) ||
943 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
950 if (!dbus_message_iter_close_container(&sub, &sub2))
954 if (!dbus_message_iter_close_container(&iter, &sub))
957 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CreateSession")) {
959 r = bus_manager_create_session(m, message, &reply);
964 return bus_send_error_reply(connection, message, &error, r);
966 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ActivateSession")) {
970 if (!dbus_message_get_args(
973 DBUS_TYPE_STRING, &name,
975 return bus_send_error_reply(connection, message, &error, -EINVAL);
977 session = hashmap_get(m->sessions, name);
979 return bus_send_error_reply(connection, message, &error, -ENOENT);
981 r = session_activate(session);
983 return bus_send_error_reply(connection, message, NULL, r);
985 reply = dbus_message_new_method_return(message);
989 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "LockSession") ||
990 dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "UnlockSession")) {
994 if (!dbus_message_get_args(
997 DBUS_TYPE_STRING, &name,
999 return bus_send_error_reply(connection, message, &error, -EINVAL);
1001 session = hashmap_get(m->sessions, name);
1003 return bus_send_error_reply(connection, message, &error, -ENOENT);
1005 if (session_send_lock(session, streq(dbus_message_get_member(message), "LockSession")) < 0)
1008 reply = dbus_message_new_method_return(message);
1012 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSession")) {
1016 if (!dbus_message_get_args(
1019 DBUS_TYPE_STRING, &name,
1021 return bus_send_error_reply(connection, message, &error, -EINVAL);
1023 session = hashmap_get(m->sessions, name);
1025 return bus_send_error_reply(connection, message, &error, -ENOENT);
1027 r = session_stop(session);
1029 return bus_send_error_reply(connection, message, NULL, r);
1031 reply = dbus_message_new_method_return(message);
1035 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateUser")) {
1039 if (!dbus_message_get_args(
1042 DBUS_TYPE_UINT32, &uid,
1044 return bus_send_error_reply(connection, message, &error, -EINVAL);
1046 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1048 return bus_send_error_reply(connection, message, &error, -ENOENT);
1050 r = user_stop(user);
1052 return bus_send_error_reply(connection, message, NULL, r);
1054 reply = dbus_message_new_method_return(message);
1058 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSeat")) {
1062 if (!dbus_message_get_args(
1065 DBUS_TYPE_STRING, &name,
1067 return bus_send_error_reply(connection, message, &error, -EINVAL);
1069 seat = hashmap_get(m->seats, name);
1071 return bus_send_error_reply(connection, message, &error, -ENOENT);
1073 r = seat_stop_sessions(seat);
1075 return bus_send_error_reply(connection, message, NULL, r);
1077 reply = dbus_message_new_method_return(message);
1081 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "SetUserLinger")) {
1084 dbus_bool_t b, interactive;
1087 if (!dbus_message_get_args(
1090 DBUS_TYPE_UINT32, &uid,
1091 DBUS_TYPE_BOOLEAN, &b,
1092 DBUS_TYPE_BOOLEAN, &interactive,
1094 return bus_send_error_reply(connection, message, &error, -EINVAL);
1099 return bus_send_error_reply(connection, message, NULL, errno ? -errno : -EINVAL);
1101 r = verify_polkit(connection, message, "org.freedesktop.login1.set-user-linger", interactive, &error);
1103 return bus_send_error_reply(connection, message, &error, r);
1105 r = safe_mkdir("/var/lib/systemd/linger", 0755, 0, 0);
1107 return bus_send_error_reply(connection, message, &error, r);
1109 path = strappend("/var/lib/systemd/linger/", pw->pw_name);
1120 return bus_send_error_reply(connection, message, &error, r);
1122 if (manager_add_user_by_uid(m, uid, &u) >= 0)
1131 if (r < 0 && errno != ENOENT)
1132 return bus_send_error_reply(connection, message, &error, -errno);
1134 u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1136 user_add_to_gc_queue(u);
1139 reply = dbus_message_new_method_return(message);
1143 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "AttachDevice")) {
1144 const char *sysfs, *seat;
1145 dbus_bool_t interactive;
1147 if (!dbus_message_get_args(
1150 DBUS_TYPE_STRING, &seat,
1151 DBUS_TYPE_STRING, &sysfs,
1152 DBUS_TYPE_BOOLEAN, &interactive,
1154 return bus_send_error_reply(connection, message, &error, -EINVAL);
1156 if (!path_startswith(sysfs, "/sys") || !seat_name_is_valid(seat))
1157 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1159 r = verify_polkit(connection, message, "org.freedesktop.login1.attach-device", interactive, &error);
1161 return bus_send_error_reply(connection, message, &error, r);
1163 r = attach_device(m, seat, sysfs);
1165 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1167 reply = dbus_message_new_method_return(message);
1172 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "FlushDevices")) {
1173 dbus_bool_t interactive;
1175 if (!dbus_message_get_args(
1178 DBUS_TYPE_BOOLEAN, &interactive,
1180 return bus_send_error_reply(connection, message, &error, -EINVAL);
1182 r = verify_polkit(connection, message, "org.freedesktop.login1.flush-devices", interactive, &error);
1184 return bus_send_error_reply(connection, message, &error, r);
1186 r = flush_devices(m);
1188 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1190 reply = dbus_message_new_method_return(message);
1194 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
1195 char *introspection = NULL;
1204 if (!(reply = dbus_message_new_method_return(message)))
1207 /* We roll our own introspection code here, instead of
1208 * relying on bus_default_message_handler() because we
1209 * need to generate our introspection string
1212 if (!(f = open_memstream(&introspection, &size)))
1215 fputs(INTROSPECTION_BEGIN, f);
1217 HASHMAP_FOREACH(seat, m->seats, i) {
1218 p = bus_path_escape(seat->id);
1221 fprintf(f, "<node name=\"seat/%s\"/>", p);
1226 HASHMAP_FOREACH(user, m->users, i)
1227 fprintf(f, "<node name=\"user/%llu\"/>", (unsigned long long) user->uid);
1229 HASHMAP_FOREACH(session, m->sessions, i) {
1230 p = bus_path_escape(session->id);
1233 fprintf(f, "<node name=\"session/%s\"/>", p);
1238 fputs(INTROSPECTION_END, f);
1242 free(introspection);
1251 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
1252 free(introspection);
1256 free(introspection);
1258 return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, properties);
1261 if (!dbus_connection_send(connection, reply, NULL))
1264 dbus_message_unref(reply);
1267 return DBUS_HANDLER_RESULT_HANDLED;
1271 dbus_message_unref(reply);
1273 dbus_error_free(&error);
1275 return DBUS_HANDLER_RESULT_NEED_MEMORY;
1278 const DBusObjectPathVTable bus_manager_vtable = {
1279 .message_function = manager_message_handler
1282 DBusHandlerResult bus_message_filter(
1283 DBusConnection *connection,
1284 DBusMessage *message,
1287 Manager *m = userdata;
1294 dbus_error_init(&error);
1296 if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Agent", "Released")) {
1299 if (!dbus_message_get_args(message, &error,
1300 DBUS_TYPE_STRING, &cgroup,
1302 log_error("Failed to parse Released message: %s", bus_error_message(&error));
1304 manager_cgroup_notify_empty(m, cgroup);
1307 dbus_error_free(&error);
1309 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1312 int manager_send_changed(Manager *manager, const char *properties) {
1318 m = bus_properties_changed_new("/org/freedesktop/login1", "org.freedesktop.login1.Manager", properties);
1322 if (!dbus_connection_send(manager->bus, m, NULL))
1329 dbus_message_unref(m);