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=\"users\" type=\"a(sussso)\" 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);
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", "ActivateSession")) {
301 if (!dbus_message_get_args(
304 DBUS_TYPE_STRING, &name,
306 return bus_send_error_reply(connection, message, &error, -EINVAL);
308 session = hashmap_get(m->sessions, name);
310 return bus_send_error_reply(connection, message, &error, -ENOENT);
312 r = session_activate(session);
314 return bus_send_error_reply(connection, message, NULL, r);
316 reply = dbus_message_new_method_return(message);
320 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSession")) {
324 if (!dbus_message_get_args(
327 DBUS_TYPE_STRING, &name,
329 return bus_send_error_reply(connection, message, &error, -EINVAL);
331 session = hashmap_get(m->sessions, name);
333 return bus_send_error_reply(connection, message, &error, -ENOENT);
335 r = session_stop(session);
337 return bus_send_error_reply(connection, message, NULL, r);
339 reply = dbus_message_new_method_return(message);
343 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateUser")) {
347 if (!dbus_message_get_args(
350 DBUS_TYPE_UINT32, &uid,
352 return bus_send_error_reply(connection, message, &error, -EINVAL);
354 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
356 return bus_send_error_reply(connection, message, &error, -ENOENT);
360 return bus_send_error_reply(connection, message, NULL, r);
362 reply = dbus_message_new_method_return(message);
366 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSeat")) {
370 if (!dbus_message_get_args(
373 DBUS_TYPE_STRING, &name,
375 return bus_send_error_reply(connection, message, &error, -EINVAL);
377 seat = hashmap_get(m->seats, name);
379 return bus_send_error_reply(connection, message, &error, -ENOENT);
381 r = seat_stop_sessions(seat);
383 return bus_send_error_reply(connection, message, NULL, r);
385 reply = dbus_message_new_method_return(message);
389 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
390 char *introspection = NULL;
399 if (!(reply = dbus_message_new_method_return(message)))
402 /* We roll our own introspection code here, instead of
403 * relying on bus_default_message_handler() because we
404 * need to generate our introspection string
407 if (!(f = open_memstream(&introspection, &size)))
410 fputs(INTROSPECTION_BEGIN, f);
412 HASHMAP_FOREACH(seat, m->seats, i) {
413 p = bus_path_escape(seat->id);
416 fprintf(f, "<node name=\"seat/%s\"/>", p);
421 HASHMAP_FOREACH(user, m->users, i)
422 fprintf(f, "<node name=\"user/%llu\"/>", (unsigned long long) user->uid);
424 HASHMAP_FOREACH(session, m->sessions, i) {
425 p = bus_path_escape(session->id);
428 fprintf(f, "<node name=\"session/%s\"/>", p);
433 fputs(INTROSPECTION_END, f);
446 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
453 return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, properties);
456 if (!dbus_connection_send(connection, reply, NULL))
459 dbus_message_unref(reply);
462 return DBUS_HANDLER_RESULT_HANDLED;
466 dbus_message_unref(reply);
468 dbus_error_free(&error);
470 return DBUS_HANDLER_RESULT_NEED_MEMORY;
473 const DBusObjectPathVTable bus_manager_vtable = {
474 .message_function = manager_message_handler