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=\"TerminateSession\">\n" \
79 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
81 " <method name=\"TerminateUser\">\n" \
82 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
84 " <method name=\"TerminateSeat\">\n" \
85 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
87 " <method name=\"SetUserLinger\">\n" \
88 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
89 " <arg name=\"b\" type=\"b\" direction=\"in\"/>\n" \
90 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
92 " <method name=\"AttachDevice\">\n" \
93 " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
94 " <arg name=\"sysfs\" type=\"s\" direction=\"in\"/>\n" \
95 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
97 " <signal name=\"SessionNew\">\n" \
98 " <arg name=\"id\" type=\"s\"/>\n" \
99 " <arg name=\"path\" type=\"o\"/>\n" \
101 " <signal name=\"SessionRemoved\">\n" \
102 " <arg name=\"id\" type=\"s\"/>\n" \
103 " <arg name=\"path\" type=\"o\"/>\n" \
105 " <signal name=\"UserNew\">\n" \
106 " <arg name=\"uid\" type=\"u\"/>\n" \
107 " <arg name=\"path\" type=\"o\"/>\n" \
109 " <signal name=\"UserRemoved\">\n" \
110 " <arg name=\"uid\" type=\"u\"/>\n" \
111 " <arg name=\"path\" type=\"o\"/>\n" \
113 " <signal name=\"SeatNew\">\n" \
114 " <arg name=\"id\" type=\"s\"/>\n" \
115 " <arg name=\"path\" type=\"o\"/>\n" \
117 " <signal name=\"SeatRemoved\">\n" \
118 " <arg name=\"id\" type=\"s\"/>\n" \
119 " <arg name=\"path\" type=\"o\"/>\n" \
121 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
122 " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
123 " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
124 " <property name=\"NAutoVTs\" type=\"u\" access=\"read\"/>\n" \
125 " <property name=\"KillOnlyUsers\" type=\"as\" access=\"read\"/>\n" \
126 " <property name=\"KillExcludeUsers\" type=\"as\" access=\"read\"/>\n" \
127 " <property name=\"KillUserProcesses\" type=\"b\" access=\"read\"/>\n" \
128 " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
129 " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
130 " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
133 #define INTROSPECTION_BEGIN \
134 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
136 BUS_MANAGER_INTERFACE \
137 BUS_PROPERTIES_INTERFACE \
139 BUS_INTROSPECTABLE_INTERFACE
141 #define INTROSPECTION_END \
144 #define INTERFACES_LIST \
145 BUS_GENERIC_INTERFACES_LIST \
146 "org.freedesktop.login1.Manager\0"
148 static int bus_manager_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
156 b = manager_get_idle_hint(m, NULL) > 0;
157 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
163 static int bus_manager_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
172 manager_get_idle_hint(m, &t);
173 u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
175 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
181 static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMessage **_reply) {
182 Session *session = NULL;
184 const char *type, *seat, *tty, *display, *remote_user, *remote_host, *service;
185 uint32_t uid, leader, audit_id = 0;
186 dbus_bool_t remote, kill_processes;
187 char **controllers = NULL, **reset_controllers = NULL;
190 DBusMessageIter iter;
194 int pipe_fds[2] = { -1, -1 };
195 DBusMessage *reply = NULL;
202 if (!dbus_message_iter_init(message, &iter) ||
203 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
206 dbus_message_iter_get_basic(&iter, &uid);
208 if (!dbus_message_iter_next(&iter) ||
209 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
212 dbus_message_iter_get_basic(&iter, &leader);
215 !dbus_message_iter_next(&iter) ||
216 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
219 dbus_message_iter_get_basic(&iter, &service);
221 if (!dbus_message_iter_next(&iter) ||
222 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
225 dbus_message_iter_get_basic(&iter, &type);
226 t = session_type_from_string(type);
229 !dbus_message_iter_next(&iter) ||
230 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
233 dbus_message_iter_get_basic(&iter, &seat);
238 s = hashmap_get(m->seats, seat);
243 if (!dbus_message_iter_next(&iter) ||
244 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
247 dbus_message_iter_get_basic(&iter, &vtnr);
249 if (!dbus_message_iter_next(&iter) ||
250 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
253 dbus_message_iter_get_basic(&iter, &tty);
255 if (tty_is_vc(tty)) {
260 else if (s != m->vtconsole)
263 v = vtnr_from_tty(tty);
266 return v < 0 ? v : -EINVAL;
270 else if (vtnr != (uint32_t) v)
273 } else if (!isempty(tty) && s && seat_is_vtconsole(s))
277 if (seat_is_vtconsole(s)) {
278 if (vtnr <= 0 || vtnr > 63)
286 if (!dbus_message_iter_next(&iter) ||
287 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
290 dbus_message_iter_get_basic(&iter, &display);
292 if (!dbus_message_iter_next(&iter) ||
293 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN)
296 dbus_message_iter_get_basic(&iter, &remote);
298 if (!dbus_message_iter_next(&iter) ||
299 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
302 dbus_message_iter_get_basic(&iter, &remote_user);
304 if (!dbus_message_iter_next(&iter) ||
305 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
308 dbus_message_iter_get_basic(&iter, &remote_host);
310 if (!dbus_message_iter_next(&iter) ||
311 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
312 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING)
315 r = bus_parse_strv_iter(&iter, &controllers);
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) {
326 r = bus_parse_strv_iter(&iter, &reset_controllers);
330 if (!dbus_message_iter_next(&iter) ||
331 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) {
336 dbus_message_iter_get_basic(&iter, &kill_processes);
338 r = manager_add_user_by_uid(m, uid, &user);
342 audit_session_from_pid(leader, &audit_id);
345 asprintf(&id, "%lu", (unsigned long) audit_id);
352 session = hashmap_get(m->sessions, id);
356 /* Session already exists, client is probably
357 * something like "su" which changes uid but
358 * is still the same audit session */
360 reply = dbus_message_new_method_return(message);
366 /* Create a throw-away fd */
367 if (pipe(pipe_fds) < 0) {
372 close_nointr_nofail(pipe_fds[0]);
375 p = session_bus_path(session);
381 b = dbus_message_append_args(
383 DBUS_TYPE_STRING, &session->id,
384 DBUS_TYPE_OBJECT_PATH, &p,
385 DBUS_TYPE_STRING, &session->user->runtime_path,
386 DBUS_TYPE_UNIX_FD, &pipe_fds[1],
395 close_nointr_nofail(pipe_fds[1]);
404 asprintf(&id, "c%lu", ++m->session_counter);
411 } while (hashmap_get(m->sessions, id));
414 r = manager_add_session(m, user, id, &session);
419 session->leader = leader;
420 session->audit_id = audit_id;
422 session->remote = remote;
423 session->controllers = controllers;
424 session->reset_controllers = reset_controllers;
425 session->kill_processes = kill_processes;
426 session->vtnr = vtnr;
428 controllers = reset_controllers = NULL;
431 session->tty = strdup(tty);
438 if (!isempty(display)) {
439 session->display = strdup(display);
440 if (!session->display) {
446 if (!isempty(remote_user)) {
447 session->remote_user = strdup(remote_user);
448 if (!session->remote_user) {
454 if (!isempty(remote_host)) {
455 session->remote_host = strdup(remote_host);
456 if (!session->remote_host) {
462 if (!isempty(service)) {
463 session->service = strdup(service);
464 if (!session->service) {
470 if (pipe(pipe_fds) < 0) {
475 r = session_set_pipe_fd(session, pipe_fds[0]);
481 r = seat_attach_session(s, session);
486 r = session_start(session);
490 reply = dbus_message_new_method_return(message);
496 p = session_bus_path(session);
502 b = dbus_message_append_args(
504 DBUS_TYPE_STRING, &session->id,
505 DBUS_TYPE_OBJECT_PATH, &p,
506 DBUS_TYPE_STRING, &session->user->runtime_path,
507 DBUS_TYPE_UNIX_FD, &pipe_fds[1],
516 close_nointr_nofail(pipe_fds[1]);
522 strv_free(controllers);
523 strv_free(reset_controllers);
526 session_add_to_gc_queue(session);
529 user_add_to_gc_queue(user);
531 close_pipe(pipe_fds);
534 dbus_message_unref(reply);
539 static bool device_has_tag(struct udev_device *d, const char *tag) {
540 struct udev_list_entry *first, *item;
545 udev_device_get_is_initialized(d);
547 first = udev_device_get_tags_list_entry(d);
548 udev_list_entry_foreach(item, first)
549 if (streq(udev_list_entry_get_name(item), tag))
555 static int attach_device(Manager *m, const char *seat, const char *sysfs) {
556 struct udev_device *d;
557 char *rule = NULL, *file = NULL;
558 const char *id_for_seat;
565 d = udev_device_new_from_syspath(m->udev, sysfs);
569 if (!device_has_tag(d, "seat")) {
574 id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT");
580 if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0) {
585 if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0) {
590 mkdir_p("/etc/udev/rules.d", 0755);
591 r = write_one_line_file(file, rule);
598 udev_device_unref(d);
603 static DBusHandlerResult manager_message_handler(
604 DBusConnection *connection,
605 DBusMessage *message,
608 Manager *m = userdata;
610 const BusProperty properties[] = {
611 { "org.freedesktop.login1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_path },
612 { "org.freedesktop.login1.Manager", "Controllers", bus_property_append_strv, "as", m->controllers },
613 { "org.freedesktop.login1.Manager", "NAutoVTs", bus_property_append_unsigned, "u", &m->n_autovts },
614 { "org.freedesktop.login1.Manager", "KillOnlyUsers", bus_property_append_strv, "as", m->kill_only_users },
615 { "org.freedesktop.login1.Manager", "KillExcludeUsers", bus_property_append_strv, "as", m->kill_exclude_users },
616 { "org.freedesktop.login1.Manager", "KillUserProcesses", bus_property_append_bool, "b", &m->kill_user_processes },
617 { "org.freedesktop.login1.Manager", "IdleHint", bus_manager_append_idle_hint, "b", m },
618 { "org.freedesktop.login1.Manager", "IdleSinceHint", bus_manager_append_idle_hint_since, "t", m },
619 { "org.freedesktop.login1.Manager", "IdleSinceHintMonotonic", bus_manager_append_idle_hint_since, "t", m },
620 { NULL, NULL, NULL, NULL, NULL }
624 DBusMessage *reply = NULL;
631 dbus_error_init(&error);
633 if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSession")) {
639 if (!dbus_message_get_args(
642 DBUS_TYPE_STRING, &name,
644 return bus_send_error_reply(connection, message, &error, -EINVAL);
646 session = hashmap_get(m->sessions, name);
648 return bus_send_error_reply(connection, message, &error, -ENOENT);
650 reply = dbus_message_new_method_return(message);
654 p = session_bus_path(session);
658 b = dbus_message_append_args(
660 DBUS_TYPE_OBJECT_PATH, &p,
667 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetUser")) {
673 if (!dbus_message_get_args(
676 DBUS_TYPE_UINT32, &uid,
678 return bus_send_error_reply(connection, message, &error, -EINVAL);
680 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
682 return bus_send_error_reply(connection, message, &error, -ENOENT);
684 reply = dbus_message_new_method_return(message);
688 p = user_bus_path(user);
692 b = dbus_message_append_args(
694 DBUS_TYPE_OBJECT_PATH, &p,
701 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSeat")) {
707 if (!dbus_message_get_args(
710 DBUS_TYPE_STRING, &name,
712 return bus_send_error_reply(connection, message, &error, -EINVAL);
714 seat = hashmap_get(m->seats, name);
716 return bus_send_error_reply(connection, message, &error, -ENOENT);
718 reply = dbus_message_new_method_return(message);
722 p = seat_bus_path(seat);
726 b = dbus_message_append_args(
728 DBUS_TYPE_OBJECT_PATH, &p,
735 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSessions")) {
739 DBusMessageIter iter, sub;
740 const char *empty = "";
742 reply = dbus_message_new_method_return(message);
746 dbus_message_iter_init_append(reply, &iter);
748 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(susso)", &sub))
751 HASHMAP_FOREACH(session, m->sessions, i) {
752 DBusMessageIter sub2;
755 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
758 uid = session->user->uid;
760 p = session_bus_path(session);
764 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
765 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
766 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->user->name) ||
767 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, session->seat ? (const char**) &session->seat->id : &empty) ||
768 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
775 if (!dbus_message_iter_close_container(&sub, &sub2))
779 if (!dbus_message_iter_close_container(&iter, &sub))
782 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListUsers")) {
786 DBusMessageIter iter, sub;
788 reply = dbus_message_new_method_return(message);
792 dbus_message_iter_init_append(reply, &iter);
794 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(uso)", &sub))
797 HASHMAP_FOREACH(user, m->users, i) {
798 DBusMessageIter sub2;
801 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
806 p = user_bus_path(user);
810 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
811 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &user->name) ||
812 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
819 if (!dbus_message_iter_close_container(&sub, &sub2))
823 if (!dbus_message_iter_close_container(&iter, &sub))
826 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSeats")) {
830 DBusMessageIter iter, sub;
832 reply = dbus_message_new_method_return(message);
836 dbus_message_iter_init_append(reply, &iter);
838 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(so)", &sub))
841 HASHMAP_FOREACH(seat, m->seats, i) {
842 DBusMessageIter sub2;
844 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
847 p = seat_bus_path(seat);
851 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &seat->id) ||
852 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
859 if (!dbus_message_iter_close_container(&sub, &sub2))
863 if (!dbus_message_iter_close_container(&iter, &sub))
866 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CreateSession")) {
868 r = bus_manager_create_session(m, message, &reply);
873 return bus_send_error_reply(connection, message, &error, r);
875 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ActivateSession")) {
879 if (!dbus_message_get_args(
882 DBUS_TYPE_STRING, &name,
884 return bus_send_error_reply(connection, message, &error, -EINVAL);
886 session = hashmap_get(m->sessions, name);
888 return bus_send_error_reply(connection, message, &error, -ENOENT);
890 r = session_activate(session);
892 return bus_send_error_reply(connection, message, NULL, r);
894 reply = dbus_message_new_method_return(message);
898 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSession")) {
902 if (!dbus_message_get_args(
905 DBUS_TYPE_STRING, &name,
907 return bus_send_error_reply(connection, message, &error, -EINVAL);
909 session = hashmap_get(m->sessions, name);
911 return bus_send_error_reply(connection, message, &error, -ENOENT);
913 r = session_stop(session);
915 return bus_send_error_reply(connection, message, NULL, r);
917 reply = dbus_message_new_method_return(message);
921 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateUser")) {
925 if (!dbus_message_get_args(
928 DBUS_TYPE_UINT32, &uid,
930 return bus_send_error_reply(connection, message, &error, -EINVAL);
932 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
934 return bus_send_error_reply(connection, message, &error, -ENOENT);
938 return bus_send_error_reply(connection, message, NULL, r);
940 reply = dbus_message_new_method_return(message);
944 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSeat")) {
948 if (!dbus_message_get_args(
951 DBUS_TYPE_STRING, &name,
953 return bus_send_error_reply(connection, message, &error, -EINVAL);
955 seat = hashmap_get(m->seats, name);
957 return bus_send_error_reply(connection, message, &error, -ENOENT);
959 r = seat_stop_sessions(seat);
961 return bus_send_error_reply(connection, message, NULL, r);
963 reply = dbus_message_new_method_return(message);
967 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "SetUserLinger")) {
970 dbus_bool_t b, interactive;
973 if (!dbus_message_get_args(
976 DBUS_TYPE_UINT32, &uid,
977 DBUS_TYPE_BOOLEAN, &b,
978 DBUS_TYPE_BOOLEAN, &interactive,
980 return bus_send_error_reply(connection, message, &error, -EINVAL);
985 return bus_send_error_reply(connection, message, NULL, errno ? -errno : -EINVAL);
987 r = verify_polkit(connection, message, "org.freedesktop.login1.set-user-linger", interactive, &error);
989 return bus_send_error_reply(connection, message, &error, r);
991 r = safe_mkdir("/var/lib/systemd/linger", 0755, 0, 0);
993 return bus_send_error_reply(connection, message, &error, r);
995 path = strappend("/var/lib/systemd/linger/", pw->pw_name);
1006 return bus_send_error_reply(connection, message, &error, r);
1008 if (manager_add_user_by_uid(m, uid, &u) >= 0)
1017 if (r < 0 && errno != ENOENT)
1018 return bus_send_error_reply(connection, message, &error, -errno);
1020 u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1022 user_add_to_gc_queue(u);
1025 reply = dbus_message_new_method_return(message);
1029 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "AttachDevice")) {
1030 const char *sysfs, *seat;
1031 dbus_bool_t interactive;
1033 if (!dbus_message_get_args(
1036 DBUS_TYPE_STRING, &seat,
1037 DBUS_TYPE_STRING, &sysfs,
1038 DBUS_TYPE_BOOLEAN, &interactive,
1040 return bus_send_error_reply(connection, message, &error, -EINVAL);
1042 if (!path_startswith(sysfs, "/sys") || !seat_name_is_valid(seat))
1043 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1045 r = verify_polkit(connection, message, "org.freedesktop.login1.attach-device", interactive, &error);
1047 return bus_send_error_reply(connection, message, &error, r);
1049 r = attach_device(m, seat, sysfs);
1051 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1053 reply = dbus_message_new_method_return(message);
1057 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
1058 char *introspection = NULL;
1067 if (!(reply = dbus_message_new_method_return(message)))
1070 /* We roll our own introspection code here, instead of
1071 * relying on bus_default_message_handler() because we
1072 * need to generate our introspection string
1075 if (!(f = open_memstream(&introspection, &size)))
1078 fputs(INTROSPECTION_BEGIN, f);
1080 HASHMAP_FOREACH(seat, m->seats, i) {
1081 p = bus_path_escape(seat->id);
1084 fprintf(f, "<node name=\"seat/%s\"/>", p);
1089 HASHMAP_FOREACH(user, m->users, i)
1090 fprintf(f, "<node name=\"user/%llu\"/>", (unsigned long long) user->uid);
1092 HASHMAP_FOREACH(session, m->sessions, i) {
1093 p = bus_path_escape(session->id);
1096 fprintf(f, "<node name=\"session/%s\"/>", p);
1101 fputs(INTROSPECTION_END, f);
1105 free(introspection);
1114 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
1115 free(introspection);
1119 free(introspection);
1121 return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, properties);
1124 if (!dbus_connection_send(connection, reply, NULL))
1127 dbus_message_unref(reply);
1130 return DBUS_HANDLER_RESULT_HANDLED;
1134 dbus_message_unref(reply);
1136 dbus_error_free(&error);
1138 return DBUS_HANDLER_RESULT_NEED_MEMORY;
1141 const DBusObjectPathVTable bus_manager_vtable = {
1142 .message_function = manager_message_handler
1145 DBusHandlerResult bus_message_filter(
1146 DBusConnection *connection,
1147 DBusMessage *message,
1150 Manager *m = userdata;
1157 dbus_error_init(&error);
1159 if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Agent", "Released")) {
1162 if (!dbus_message_get_args(message, &error,
1163 DBUS_TYPE_STRING, &cgroup,
1165 log_error("Failed to parse Released message: %s", bus_error_message(&error));
1167 manager_cgroup_notify_empty(m, cgroup);
1170 dbus_error_free(&error);
1172 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1175 int manager_send_changed(Manager *manager, const char *properties) {
1181 m = bus_properties_changed_new("/org/freedesktop/login1", "org.freedesktop.login1.Manager", properties);
1185 if (!dbus_connection_send(manager->bus, m, NULL))
1192 dbus_message_unref(m);