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/>.
26 #include "dbus-common.h"
28 #define BUS_MANAGER_INTERFACE \
29 " <interface name=\"org.freedesktop.login1.Manager\">\n" \
30 " <method name=\"GetSession\">\n" \
31 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
32 " <arg name=\"session\" type=\"o\" direction=\"out\"/>\n" \
34 " <method name=\"GetUser\">\n" \
35 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
36 " <arg name=\"user\" type=\"o\" direction=\"out\"/>\n" \
38 " <method name=\"GetSeat\">\n" \
39 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
40 " <arg name=\"seat\" type=\"o\" direction=\"out\"/>\n" \
42 " <method name=\"ListSessions\">\n" \
43 " <arg name=\"sessions\" type=\"a(susso)\" direction=\"out\"/>\n" \
45 " <method name=\"ListUsers\">\n" \
46 " <arg name=\"users\" type=\"a(uso)\" direction=\"out\"/>\n" \
48 " <method name=\"ListSeats\">\n" \
49 " <arg name=\"seats\" type=\"a(so)\" direction=\"out\"/>\n" \
51 " <method name=\"CreateSession\">\n" \
52 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
53 " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \
54 " <arg name=\"type\" type=\"s\" direction=\"in\"/>\n" \
55 " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
56 " <arg name=\"tty\" type=\"s\" direction=\"in\"/>\n" \
57 " <arg name=\"display\" type=\"s\" direction=\"in\"/>\n" \
58 " <arg name=\"remote\" type=\"b\" direction=\"in\"/>\n" \
59 " <arg name=\"remote_user\" type=\"s\" direction=\"in\"/>\n" \
60 " <arg name=\"remote_host\" type=\"s\" direction=\"in\"/>\n" \
61 " <arg name=\"controllers\" type=\"as\" direction=\"in\"/>\n" \
62 " <arg name=\"reset_controllers\" type=\"as\" direction=\"in\"/>\n" \
63 " <arg name=\"kill_processes\" type=\"as\" direction=\"in\"/>\n" \
64 " <arg name=\"id\" type=\"s\" direction=\"out\"/>\n" \
65 " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \
66 " <arg name=\"fd\" type=\"h\" direction=\"out\"/>\n" \
68 " <method name=\"ActivateSession\">\n" \
69 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
71 " <method name=\"TerminateSession\">\n" \
72 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
74 " <method name=\"TerminateUser\">\n" \
75 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
77 " <method name=\"TerminateSeat\">\n" \
78 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
80 " <signal name=\"SessionNew\">\n" \
81 " <arg name=\"id\" type=\"s\"/>\n" \
82 " <arg name=\"path\" type=\"o\"/>\n" \
84 " <signal name=\"SessionRemoved\">\n" \
85 " <arg name=\"id\" type=\"s\"/>\n" \
86 " <arg name=\"path\" type=\"o\"/>\n" \
88 " <signal name=\"UserNew\">\n" \
89 " <arg name=\"uid\" type=\"u\"/>\n" \
90 " <arg name=\"path\" type=\"o\"/>\n" \
92 " <signal name=\"UserRemoved\">\n" \
93 " <arg name=\"uid\" type=\"u\"/>\n" \
94 " <arg name=\"path\" type=\"o\"/>\n" \
96 " <signal name=\"SeatNew\">\n" \
97 " <arg name=\"id\" type=\"s\"/>\n" \
98 " <arg name=\"path\" type=\"o\"/>\n" \
100 " <signal name=\"SeatRemoved\">\n" \
101 " <arg name=\"id\" type=\"s\"/>\n" \
102 " <arg name=\"path\" type=\"o\"/>\n" \
104 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
105 " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
106 " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
107 " <property name=\"NAutoVTs\" type=\"u\" access=\"read\"/>\n" \
108 " <property name=\"KillOnlyUsers\" type=\"as\" access=\"read\"/>\n" \
109 " <property name=\"KillExcludeUsers\" type=\"as\" access=\"read\"/>\n" \
110 " <property name=\"KillUserProcesses\" type=\"b\" access=\"read\"/>\n" \
111 " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
112 " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
113 " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
116 #define INTROSPECTION_BEGIN \
117 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
119 BUS_MANAGER_INTERFACE \
120 BUS_PROPERTIES_INTERFACE \
122 BUS_INTROSPECTABLE_INTERFACE
124 #define INTROSPECTION_END \
127 #define INTERFACES_LIST \
128 BUS_GENERIC_INTERFACES_LIST \
129 "org.freedesktop.login1.Manager\0"
131 static int bus_manager_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
139 b = manager_get_idle_hint(m, NULL) > 0;
140 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
146 static int bus_manager_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
155 manager_get_idle_hint(m, &t);
156 u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
158 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
164 static DBusHandlerResult manager_message_handler(
165 DBusConnection *connection,
166 DBusMessage *message,
169 Manager *m = userdata;
171 const BusProperty properties[] = {
172 { "org.freedesktop.login1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_path },
173 { "org.freedesktop.login1.Manager", "Controllers", bus_property_append_strv, "as", m->controllers },
174 { "org.freedesktop.login1.Manager", "ResetControllers", bus_property_append_strv, "as", m->reset_controllers },
175 { "org.freedesktop.login1.Manager", "NAutoVTs", bus_property_append_unsigned, "u", &m->n_autovts },
176 { "org.freedesktop.login1.Manager", "KillOnlyUsers", bus_property_append_strv, "as", m->kill_only_users },
177 { "org.freedesktop.login1.Manager", "KillExcludeUsers", bus_property_append_strv, "as", m->kill_exclude_users },
178 { "org.freedesktop.login1.Manager", "KillUserProcesses", bus_property_append_bool, "b", &m->kill_user_processes },
179 { "org.freedesktop.login1.Manager", "IdleHint", bus_manager_append_idle_hint, "b", m },
180 { "org.freedesktop.login1.Manager", "IdleSinceHint", bus_manager_append_idle_hint_since, "t", m },
181 { "org.freedesktop.login1.Manager", "IdleSinceHintMonotonic", bus_manager_append_idle_hint_since, "t", m },
182 { NULL, NULL, NULL, NULL, NULL }
186 DBusMessage *reply = NULL;
193 dbus_error_init(&error);
195 if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSession")) {
201 if (!dbus_message_get_args(
204 DBUS_TYPE_STRING, &name,
206 return bus_send_error_reply(connection, message, &error, -EINVAL);
208 session = hashmap_get(m->sessions, name);
210 return bus_send_error_reply(connection, message, &error, -ENOENT);
212 reply = dbus_message_new_method_return(message);
216 p = session_bus_path(session);
220 b = dbus_message_append_args(
222 DBUS_TYPE_OBJECT_PATH, &p,
229 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetUser")) {
235 if (!dbus_message_get_args(
238 DBUS_TYPE_UINT32, &uid,
240 return bus_send_error_reply(connection, message, &error, -EINVAL);
242 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
244 return bus_send_error_reply(connection, message, &error, -ENOENT);
246 reply = dbus_message_new_method_return(message);
250 p = user_bus_path(user);
254 b = dbus_message_append_args(
256 DBUS_TYPE_OBJECT_PATH, &p,
263 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSeat")) {
269 if (!dbus_message_get_args(
272 DBUS_TYPE_STRING, &name,
274 return bus_send_error_reply(connection, message, &error, -EINVAL);
276 seat = hashmap_get(m->seats, name);
278 return bus_send_error_reply(connection, message, &error, -ENOENT);
280 reply = dbus_message_new_method_return(message);
284 p = seat_bus_path(seat);
288 b = dbus_message_append_args(
290 DBUS_TYPE_OBJECT_PATH, &p,
297 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSessions")) {
301 DBusMessageIter iter, sub;
302 const char *empty = "";
304 reply = dbus_message_new_method_return(message);
308 dbus_message_iter_init_append(reply, &iter);
310 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "susso", &sub))
313 HASHMAP_FOREACH(session, m->sessions, i) {
314 DBusMessageIter sub2;
317 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
320 uid = session->user->uid;
322 p = session_bus_path(session);
326 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
327 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
328 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->user->name) ||
329 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, session->seat ? (const char**) &session->seat->id : &empty) ||
330 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
337 if (!dbus_message_iter_close_container(&sub, &sub2))
341 if (!dbus_message_iter_close_container(&iter, &sub))
344 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListUsers")) {
348 DBusMessageIter iter, sub;
350 reply = dbus_message_new_method_return(message);
354 dbus_message_iter_init_append(reply, &iter);
356 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "uso", &sub))
359 HASHMAP_FOREACH(user, m->users, i) {
360 DBusMessageIter sub2;
363 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
368 p = user_bus_path(user);
372 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
373 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &user->name) ||
374 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
381 if (!dbus_message_iter_close_container(&sub, &sub2))
385 if (!dbus_message_iter_close_container(&iter, &sub))
388 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSeats")) {
392 DBusMessageIter iter, sub;
394 reply = dbus_message_new_method_return(message);
398 dbus_message_iter_init_append(reply, &iter);
400 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "so", &sub))
403 HASHMAP_FOREACH(seat, m->seats, i) {
404 DBusMessageIter sub2;
406 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
409 p = seat_bus_path(seat);
413 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &seat->id) ||
414 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
421 if (!dbus_message_iter_close_container(&sub, &sub2))
425 if (!dbus_message_iter_close_container(&iter, &sub))
428 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ActivateSession")) {
432 if (!dbus_message_get_args(
435 DBUS_TYPE_STRING, &name,
437 return bus_send_error_reply(connection, message, &error, -EINVAL);
439 session = hashmap_get(m->sessions, name);
441 return bus_send_error_reply(connection, message, &error, -ENOENT);
443 r = session_activate(session);
445 return bus_send_error_reply(connection, message, NULL, r);
447 reply = dbus_message_new_method_return(message);
451 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSession")) {
455 if (!dbus_message_get_args(
458 DBUS_TYPE_STRING, &name,
460 return bus_send_error_reply(connection, message, &error, -EINVAL);
462 session = hashmap_get(m->sessions, name);
464 return bus_send_error_reply(connection, message, &error, -ENOENT);
466 r = session_stop(session);
468 return bus_send_error_reply(connection, message, NULL, r);
470 reply = dbus_message_new_method_return(message);
474 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateUser")) {
478 if (!dbus_message_get_args(
481 DBUS_TYPE_UINT32, &uid,
483 return bus_send_error_reply(connection, message, &error, -EINVAL);
485 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
487 return bus_send_error_reply(connection, message, &error, -ENOENT);
491 return bus_send_error_reply(connection, message, NULL, r);
493 reply = dbus_message_new_method_return(message);
497 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSeat")) {
501 if (!dbus_message_get_args(
504 DBUS_TYPE_STRING, &name,
506 return bus_send_error_reply(connection, message, &error, -EINVAL);
508 seat = hashmap_get(m->seats, name);
510 return bus_send_error_reply(connection, message, &error, -ENOENT);
512 r = seat_stop_sessions(seat);
514 return bus_send_error_reply(connection, message, NULL, r);
516 reply = dbus_message_new_method_return(message);
520 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
521 char *introspection = NULL;
530 if (!(reply = dbus_message_new_method_return(message)))
533 /* We roll our own introspection code here, instead of
534 * relying on bus_default_message_handler() because we
535 * need to generate our introspection string
538 if (!(f = open_memstream(&introspection, &size)))
541 fputs(INTROSPECTION_BEGIN, f);
543 HASHMAP_FOREACH(seat, m->seats, i) {
544 p = bus_path_escape(seat->id);
547 fprintf(f, "<node name=\"seat/%s\"/>", p);
552 HASHMAP_FOREACH(user, m->users, i)
553 fprintf(f, "<node name=\"user/%llu\"/>", (unsigned long long) user->uid);
555 HASHMAP_FOREACH(session, m->sessions, i) {
556 p = bus_path_escape(session->id);
559 fprintf(f, "<node name=\"session/%s\"/>", p);
564 fputs(INTROSPECTION_END, f);
577 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
584 return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, properties);
587 if (!dbus_connection_send(connection, reply, NULL))
590 dbus_message_unref(reply);
593 return DBUS_HANDLER_RESULT_HANDLED;
597 dbus_message_unref(reply);
599 dbus_error_free(&error);
601 return DBUS_HANDLER_RESULT_NEED_MEMORY;
604 const DBusObjectPathVTable bus_manager_vtable = {
605 .message_function = manager_message_handler
608 int manager_send_changed(Manager *manager, const char *properties) {
614 m = bus_properties_changed_new("/org/freedesktop/login1", "org.freedesktop.login1.Manager", properties);
618 if (!dbus_connection_send(manager->bus, m, NULL))
625 dbus_message_unref(m);