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 " <signal name=\"SessionNew\">\n" \
93 " <arg name=\"id\" type=\"s\"/>\n" \
94 " <arg name=\"path\" type=\"o\"/>\n" \
96 " <signal name=\"SessionRemoved\">\n" \
97 " <arg name=\"id\" type=\"s\"/>\n" \
98 " <arg name=\"path\" type=\"o\"/>\n" \
100 " <signal name=\"UserNew\">\n" \
101 " <arg name=\"uid\" type=\"u\"/>\n" \
102 " <arg name=\"path\" type=\"o\"/>\n" \
104 " <signal name=\"UserRemoved\">\n" \
105 " <arg name=\"uid\" type=\"u\"/>\n" \
106 " <arg name=\"path\" type=\"o\"/>\n" \
108 " <signal name=\"SeatNew\">\n" \
109 " <arg name=\"id\" type=\"s\"/>\n" \
110 " <arg name=\"path\" type=\"o\"/>\n" \
112 " <signal name=\"SeatRemoved\">\n" \
113 " <arg name=\"id\" type=\"s\"/>\n" \
114 " <arg name=\"path\" type=\"o\"/>\n" \
116 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
117 " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
118 " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
119 " <property name=\"NAutoVTs\" type=\"u\" access=\"read\"/>\n" \
120 " <property name=\"KillOnlyUsers\" type=\"as\" access=\"read\"/>\n" \
121 " <property name=\"KillExcludeUsers\" type=\"as\" access=\"read\"/>\n" \
122 " <property name=\"KillUserProcesses\" type=\"b\" access=\"read\"/>\n" \
123 " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
124 " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
125 " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
128 #define INTROSPECTION_BEGIN \
129 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
131 BUS_MANAGER_INTERFACE \
132 BUS_PROPERTIES_INTERFACE \
134 BUS_INTROSPECTABLE_INTERFACE
136 #define INTROSPECTION_END \
139 #define INTERFACES_LIST \
140 BUS_GENERIC_INTERFACES_LIST \
141 "org.freedesktop.login1.Manager\0"
143 static int bus_manager_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
151 b = manager_get_idle_hint(m, NULL) > 0;
152 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
158 static int bus_manager_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
167 manager_get_idle_hint(m, &t);
168 u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
170 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
176 static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMessage **_reply) {
177 Session *session = NULL;
179 const char *type, *seat, *tty, *display, *remote_user, *remote_host, *service;
180 uint32_t uid, leader, audit_id = 0;
181 dbus_bool_t remote, kill_processes;
182 char **controllers = NULL, **reset_controllers = NULL;
185 DBusMessageIter iter;
189 int pipe_fds[2] = { -1, -1 };
190 DBusMessage *reply = NULL;
197 if (!dbus_message_iter_init(message, &iter) ||
198 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
201 dbus_message_iter_get_basic(&iter, &uid);
203 if (!dbus_message_iter_next(&iter) ||
204 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
207 dbus_message_iter_get_basic(&iter, &leader);
210 !dbus_message_iter_next(&iter) ||
211 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
214 dbus_message_iter_get_basic(&iter, &service);
216 if (!dbus_message_iter_next(&iter) ||
217 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
220 dbus_message_iter_get_basic(&iter, &type);
221 t = session_type_from_string(type);
224 !dbus_message_iter_next(&iter) ||
225 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
228 dbus_message_iter_get_basic(&iter, &seat);
233 s = hashmap_get(m->seats, seat);
238 if (!dbus_message_iter_next(&iter) ||
239 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
242 dbus_message_iter_get_basic(&iter, &vtnr);
244 if (!dbus_message_iter_next(&iter) ||
245 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
248 dbus_message_iter_get_basic(&iter, &tty);
250 if (tty_is_vc(tty)) {
255 else if (s != m->vtconsole)
258 v = vtnr_from_tty(tty);
261 return v < 0 ? v : -EINVAL;
265 else if (vtnr != (uint32_t) v)
268 } else if (!isempty(tty) && s && seat_is_vtconsole(s))
272 if (seat_is_vtconsole(s)) {
273 if (vtnr <= 0 || vtnr > 63)
281 if (!dbus_message_iter_next(&iter) ||
282 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
285 dbus_message_iter_get_basic(&iter, &display);
287 if (!dbus_message_iter_next(&iter) ||
288 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN)
291 dbus_message_iter_get_basic(&iter, &remote);
293 if (!dbus_message_iter_next(&iter) ||
294 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
297 dbus_message_iter_get_basic(&iter, &remote_user);
299 if (!dbus_message_iter_next(&iter) ||
300 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
303 dbus_message_iter_get_basic(&iter, &remote_host);
305 if (!dbus_message_iter_next(&iter) ||
306 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
307 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING)
310 r = bus_parse_strv_iter(&iter, &controllers);
314 if (!dbus_message_iter_next(&iter) ||
315 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
316 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING) {
321 r = bus_parse_strv_iter(&iter, &reset_controllers);
325 if (!dbus_message_iter_next(&iter) ||
326 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) {
331 dbus_message_iter_get_basic(&iter, &kill_processes);
333 r = manager_add_user_by_uid(m, uid, &user);
337 audit_session_from_pid(leader, &audit_id);
340 asprintf(&id, "%lu", (unsigned long) audit_id);
347 session = hashmap_get(m->sessions, id);
351 /* Session already exists, client is probably
352 * something like "su" which changes uid but
353 * is still the same audit session */
355 reply = dbus_message_new_method_return(message);
361 /* Create a throw-away fd */
362 if (pipe(pipe_fds) < 0) {
367 close_nointr_nofail(pipe_fds[0]);
370 p = session_bus_path(session);
376 b = dbus_message_append_args(
378 DBUS_TYPE_STRING, &session->id,
379 DBUS_TYPE_OBJECT_PATH, &p,
380 DBUS_TYPE_STRING, &session->user->runtime_path,
381 DBUS_TYPE_UNIX_FD, &pipe_fds[1],
390 close_nointr_nofail(pipe_fds[1]);
399 asprintf(&id, "c%lu", ++m->session_counter);
406 } while (hashmap_get(m->sessions, id));
409 r = manager_add_session(m, user, id, &session);
414 session->leader = leader;
415 session->audit_id = audit_id;
417 session->remote = remote;
418 session->controllers = controllers;
419 session->reset_controllers = reset_controllers;
420 session->kill_processes = kill_processes;
421 session->vtnr = vtnr;
423 controllers = reset_controllers = NULL;
426 session->tty = strdup(tty);
433 if (!isempty(display)) {
434 session->display = strdup(display);
435 if (!session->display) {
441 if (!isempty(remote_user)) {
442 session->remote_user = strdup(remote_user);
443 if (!session->remote_user) {
449 if (!isempty(remote_host)) {
450 session->remote_host = strdup(remote_host);
451 if (!session->remote_host) {
457 if (!isempty(service)) {
458 session->service = strdup(service);
459 if (!session->service) {
465 if (pipe(pipe_fds) < 0) {
470 r = session_set_pipe_fd(session, pipe_fds[0]);
476 r = seat_attach_session(s, session);
481 r = session_start(session);
485 reply = dbus_message_new_method_return(message);
491 p = session_bus_path(session);
497 b = dbus_message_append_args(
499 DBUS_TYPE_STRING, &session->id,
500 DBUS_TYPE_OBJECT_PATH, &p,
501 DBUS_TYPE_STRING, &session->user->runtime_path,
502 DBUS_TYPE_UNIX_FD, &pipe_fds[1],
511 close_nointr_nofail(pipe_fds[1]);
517 strv_free(controllers);
518 strv_free(reset_controllers);
521 session_add_to_gc_queue(session);
524 user_add_to_gc_queue(user);
526 close_pipe(pipe_fds);
529 dbus_message_unref(reply);
534 static DBusHandlerResult manager_message_handler(
535 DBusConnection *connection,
536 DBusMessage *message,
539 Manager *m = userdata;
541 const BusProperty properties[] = {
542 { "org.freedesktop.login1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_path },
543 { "org.freedesktop.login1.Manager", "Controllers", bus_property_append_strv, "as", m->controllers },
544 { "org.freedesktop.login1.Manager", "NAutoVTs", bus_property_append_unsigned, "u", &m->n_autovts },
545 { "org.freedesktop.login1.Manager", "KillOnlyUsers", bus_property_append_strv, "as", m->kill_only_users },
546 { "org.freedesktop.login1.Manager", "KillExcludeUsers", bus_property_append_strv, "as", m->kill_exclude_users },
547 { "org.freedesktop.login1.Manager", "KillUserProcesses", bus_property_append_bool, "b", &m->kill_user_processes },
548 { "org.freedesktop.login1.Manager", "IdleHint", bus_manager_append_idle_hint, "b", m },
549 { "org.freedesktop.login1.Manager", "IdleSinceHint", bus_manager_append_idle_hint_since, "t", m },
550 { "org.freedesktop.login1.Manager", "IdleSinceHintMonotonic", bus_manager_append_idle_hint_since, "t", m },
551 { NULL, NULL, NULL, NULL, NULL }
555 DBusMessage *reply = NULL;
562 dbus_error_init(&error);
564 if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSession")) {
570 if (!dbus_message_get_args(
573 DBUS_TYPE_STRING, &name,
575 return bus_send_error_reply(connection, message, &error, -EINVAL);
577 session = hashmap_get(m->sessions, name);
579 return bus_send_error_reply(connection, message, &error, -ENOENT);
581 reply = dbus_message_new_method_return(message);
585 p = session_bus_path(session);
589 b = dbus_message_append_args(
591 DBUS_TYPE_OBJECT_PATH, &p,
598 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetUser")) {
604 if (!dbus_message_get_args(
607 DBUS_TYPE_UINT32, &uid,
609 return bus_send_error_reply(connection, message, &error, -EINVAL);
611 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
613 return bus_send_error_reply(connection, message, &error, -ENOENT);
615 reply = dbus_message_new_method_return(message);
619 p = user_bus_path(user);
623 b = dbus_message_append_args(
625 DBUS_TYPE_OBJECT_PATH, &p,
632 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSeat")) {
638 if (!dbus_message_get_args(
641 DBUS_TYPE_STRING, &name,
643 return bus_send_error_reply(connection, message, &error, -EINVAL);
645 seat = hashmap_get(m->seats, name);
647 return bus_send_error_reply(connection, message, &error, -ENOENT);
649 reply = dbus_message_new_method_return(message);
653 p = seat_bus_path(seat);
657 b = dbus_message_append_args(
659 DBUS_TYPE_OBJECT_PATH, &p,
666 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSessions")) {
670 DBusMessageIter iter, sub;
671 const char *empty = "";
673 reply = dbus_message_new_method_return(message);
677 dbus_message_iter_init_append(reply, &iter);
679 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(susso)", &sub))
682 HASHMAP_FOREACH(session, m->sessions, i) {
683 DBusMessageIter sub2;
686 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
689 uid = session->user->uid;
691 p = session_bus_path(session);
695 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
696 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
697 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->user->name) ||
698 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, session->seat ? (const char**) &session->seat->id : &empty) ||
699 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
706 if (!dbus_message_iter_close_container(&sub, &sub2))
710 if (!dbus_message_iter_close_container(&iter, &sub))
713 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListUsers")) {
717 DBusMessageIter iter, sub;
719 reply = dbus_message_new_method_return(message);
723 dbus_message_iter_init_append(reply, &iter);
725 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(uso)", &sub))
728 HASHMAP_FOREACH(user, m->users, i) {
729 DBusMessageIter sub2;
732 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
737 p = user_bus_path(user);
741 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
742 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &user->name) ||
743 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
750 if (!dbus_message_iter_close_container(&sub, &sub2))
754 if (!dbus_message_iter_close_container(&iter, &sub))
757 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSeats")) {
761 DBusMessageIter iter, sub;
763 reply = dbus_message_new_method_return(message);
767 dbus_message_iter_init_append(reply, &iter);
769 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(so)", &sub))
772 HASHMAP_FOREACH(seat, m->seats, i) {
773 DBusMessageIter sub2;
775 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
778 p = seat_bus_path(seat);
782 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &seat->id) ||
783 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
790 if (!dbus_message_iter_close_container(&sub, &sub2))
794 if (!dbus_message_iter_close_container(&iter, &sub))
797 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CreateSession")) {
799 r = bus_manager_create_session(m, message, &reply);
804 return bus_send_error_reply(connection, message, &error, r);
806 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ActivateSession")) {
810 if (!dbus_message_get_args(
813 DBUS_TYPE_STRING, &name,
815 return bus_send_error_reply(connection, message, &error, -EINVAL);
817 session = hashmap_get(m->sessions, name);
819 return bus_send_error_reply(connection, message, &error, -ENOENT);
821 r = session_activate(session);
823 return bus_send_error_reply(connection, message, NULL, r);
825 reply = dbus_message_new_method_return(message);
829 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSession")) {
833 if (!dbus_message_get_args(
836 DBUS_TYPE_STRING, &name,
838 return bus_send_error_reply(connection, message, &error, -EINVAL);
840 session = hashmap_get(m->sessions, name);
842 return bus_send_error_reply(connection, message, &error, -ENOENT);
844 r = session_stop(session);
846 return bus_send_error_reply(connection, message, NULL, r);
848 reply = dbus_message_new_method_return(message);
852 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateUser")) {
856 if (!dbus_message_get_args(
859 DBUS_TYPE_UINT32, &uid,
861 return bus_send_error_reply(connection, message, &error, -EINVAL);
863 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
865 return bus_send_error_reply(connection, message, &error, -ENOENT);
869 return bus_send_error_reply(connection, message, NULL, r);
871 reply = dbus_message_new_method_return(message);
875 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSeat")) {
879 if (!dbus_message_get_args(
882 DBUS_TYPE_STRING, &name,
884 return bus_send_error_reply(connection, message, &error, -EINVAL);
886 seat = hashmap_get(m->seats, name);
888 return bus_send_error_reply(connection, message, &error, -ENOENT);
890 r = seat_stop_sessions(seat);
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", "SetUserLinger")) {
901 dbus_bool_t b, interactive;
904 if (!dbus_message_get_args(
907 DBUS_TYPE_UINT32, &uid,
908 DBUS_TYPE_BOOLEAN, &b,
909 DBUS_TYPE_BOOLEAN, &interactive,
911 return bus_send_error_reply(connection, message, &error, -EINVAL);
916 return bus_send_error_reply(connection, message, NULL, errno ? -errno : -EINVAL);
918 r = verify_polkit(connection, message, "org.freedesktop.login1.set-user-linger", interactive, &error);
920 return bus_send_error_reply(connection, message, &error, r);
922 r = safe_mkdir("/var/lib/systemd/linger", 0755, 0, 0);
924 return bus_send_error_reply(connection, message, &error, r);
926 path = strappend("/var/lib/systemd/linger/", pw->pw_name);
935 return bus_send_error_reply(connection, message, &error, r);
940 if (r < 0 && errno != ENOENT)
941 return bus_send_error_reply(connection, message, &error, -errno);
944 reply = dbus_message_new_method_return(message);
949 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
950 char *introspection = NULL;
959 if (!(reply = dbus_message_new_method_return(message)))
962 /* We roll our own introspection code here, instead of
963 * relying on bus_default_message_handler() because we
964 * need to generate our introspection string
967 if (!(f = open_memstream(&introspection, &size)))
970 fputs(INTROSPECTION_BEGIN, f);
972 HASHMAP_FOREACH(seat, m->seats, i) {
973 p = bus_path_escape(seat->id);
976 fprintf(f, "<node name=\"seat/%s\"/>", p);
981 HASHMAP_FOREACH(user, m->users, i)
982 fprintf(f, "<node name=\"user/%llu\"/>", (unsigned long long) user->uid);
984 HASHMAP_FOREACH(session, m->sessions, i) {
985 p = bus_path_escape(session->id);
988 fprintf(f, "<node name=\"session/%s\"/>", p);
993 fputs(INTROSPECTION_END, f);
1006 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
1007 free(introspection);
1011 free(introspection);
1013 return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, properties);
1016 if (!dbus_connection_send(connection, reply, NULL))
1019 dbus_message_unref(reply);
1022 return DBUS_HANDLER_RESULT_HANDLED;
1026 dbus_message_unref(reply);
1028 dbus_error_free(&error);
1030 return DBUS_HANDLER_RESULT_NEED_MEMORY;
1033 const DBusObjectPathVTable bus_manager_vtable = {
1034 .message_function = manager_message_handler
1037 DBusHandlerResult bus_message_filter(
1038 DBusConnection *connection,
1039 DBusMessage *message,
1042 Manager *m = userdata;
1049 dbus_error_init(&error);
1051 if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Agent", "Released")) {
1054 if (!dbus_message_get_args(message, &error,
1055 DBUS_TYPE_STRING, &cgroup,
1057 log_error("Failed to parse Released message: %s", bus_error_message(&error));
1059 manager_cgroup_notify_empty(m, cgroup);
1062 dbus_error_free(&error);
1064 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1067 int manager_send_changed(Manager *manager, const char *properties) {
1073 m = bus_properties_changed_new("/org/freedesktop/login1", "org.freedesktop.login1.Manager", properties);
1077 if (!dbus_connection_send(manager->bus, m, NULL))
1084 dbus_message_unref(m);