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 "logind-user.h"
27 #include "dbus-common.h"
29 #define BUS_USER_INTERFACE \
30 " <interface name=\"org.freedesktop.login1.User\">\n" \
31 " <method name=\"Terminate\"/>\n" \
32 " <method name=\"Kill\">\n" \
33 " <arg name=\"signal\" type=\"s\"/>\n" \
35 " <property name=\"UID\" type=\"u\" access=\"read\"/>\n" \
36 " <property name=\"GID\" type=\"u\" access=\"read\"/>\n" \
37 " <property name=\"Name\" type=\"s\" access=\"read\"/>\n" \
38 " <property name=\"Timestamp\" type=\"t\" access=\"read\"/>\n" \
39 " <property name=\"TimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \
40 " <property name=\"RuntimePath\" type=\"s\" access=\"read\"/>\n" \
41 " <property name=\"ControlGroupPath\" type=\"s\" access=\"read\"/>\n" \
42 " <property name=\"Service\" type=\"s\" access=\"read\"/>\n" \
43 " <property name=\"Display\" type=\"(so)\" access=\"read\"/>\n" \
44 " <property name=\"State\" type=\"s\" access=\"read\"/>\n" \
45 " <property name=\"Sessions\" type=\"a(so)\" access=\"read\"/>\n" \
46 " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
47 " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
48 " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
51 #define INTROSPECTION \
52 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
55 BUS_PROPERTIES_INTERFACE \
57 BUS_INTROSPECTABLE_INTERFACE \
60 #define INTERFACES_LIST \
61 BUS_GENERIC_INTERFACES_LIST \
62 "org.freedesktop.login1.User\0"
64 static int bus_user_append_display(DBusMessageIter *i, const char *property, void *data) {
67 const char *id, *path;
74 if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
79 path = p = session_bus_path(u->display);
88 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &id) ||
89 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &path)) {
96 if (!dbus_message_iter_close_container(i, &sub))
102 static int bus_user_append_state(DBusMessageIter *i, const char *property, void *data) {
110 state = user_state_to_string(user_get_state(u));
112 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
118 static int bus_user_append_sessions(DBusMessageIter *i, const char *property, void *data) {
119 DBusMessageIter sub, sub2;
127 if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "(so)", &sub))
130 LIST_FOREACH(sessions_by_user, session, u->sessions) {
133 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
136 p = session_bus_path(session);
140 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
141 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
148 if (!dbus_message_iter_close_container(&sub, &sub2))
152 if (!dbus_message_iter_close_container(i, &sub))
158 static int bus_user_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
166 b = user_get_idle_hint(u, NULL) > 0;
168 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
174 static int bus_user_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
183 user_get_idle_hint(u, &t);
184 k = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
186 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &k))
192 static int get_user_for_path(Manager *m, const char *path, User **_u) {
201 if (!startswith(path, "/org/freedesktop/login1/user/"))
204 r = safe_atolu(path + 29, &lu);
208 u = hashmap_get(m->users, ULONG_TO_PTR(lu));
216 static const BusProperty bus_login_user_properties[] = {
217 { "UID", bus_property_append_uid, "u", offsetof(User, uid) },
218 { "GID", bus_property_append_gid, "u", offsetof(User, gid) },
219 { "Name", bus_property_append_string, "s", offsetof(User, name), true },
220 { "Timestamp", bus_property_append_usec, "t", offsetof(User, timestamp.realtime) },
221 { "TimestampMonotonic", bus_property_append_usec, "t", offsetof(User, timestamp.monotonic) },
222 { "RuntimePath", bus_property_append_string, "s", offsetof(User, runtime_path), true },
223 { "ControlGroupPath", bus_property_append_string, "s", offsetof(User, cgroup_path), true },
224 { "Service", bus_property_append_string, "s", offsetof(User, service), true },
225 { "Display", bus_user_append_display, "(so)", 0 },
226 { "State", bus_user_append_state, "s", 0 },
227 { "Sessions", bus_user_append_sessions, "a(so)", 0 },
228 { "IdleHint", bus_user_append_idle_hint, "b", 0 },
229 { "IdleSinceHint", bus_user_append_idle_hint_since, "t", 0 },
230 { "IdleSinceHintMonotonic", bus_user_append_idle_hint_since, "t", 0 },
234 static DBusHandlerResult user_message_dispatch(
236 DBusConnection *connection,
237 DBusMessage *message) {
240 DBusMessage *reply = NULL;
247 if (dbus_message_is_method_call(message, "org.freedesktop.login1.User", "Terminate")) {
251 return bus_send_error_reply(connection, message, NULL, r);
253 reply = dbus_message_new_method_return(message);
256 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.User", "Kill")) {
259 if (!dbus_message_get_args(
262 DBUS_TYPE_INT32, &signo,
264 return bus_send_error_reply(connection, message, &error, -EINVAL);
266 if (signo <= 0 || signo >= _NSIG)
267 return bus_send_error_reply(connection, message, &error, -EINVAL);
269 r = user_kill(u, signo);
271 return bus_send_error_reply(connection, message, NULL, r);
273 reply = dbus_message_new_method_return(message);
278 const BusBoundProperties bps[] = {
279 { "org.freedesktop.login1.User", bus_login_user_properties, u },
283 return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, bps);
287 if (!dbus_connection_send(connection, reply, NULL))
290 dbus_message_unref(reply);
293 return DBUS_HANDLER_RESULT_HANDLED;
297 dbus_message_unref(reply);
299 dbus_error_free(&error);
301 return DBUS_HANDLER_RESULT_NEED_MEMORY;
304 static DBusHandlerResult user_message_handler(
305 DBusConnection *connection,
306 DBusMessage *message,
309 Manager *m = userdata;
313 r = get_user_for_path(m, dbus_message_get_path(message), &u);
317 return DBUS_HANDLER_RESULT_NEED_MEMORY;
323 dbus_set_error_const(&e, DBUS_ERROR_UNKNOWN_OBJECT, "Unknown user");
324 return bus_send_error_reply(connection, message, &e, r);
327 return bus_send_error_reply(connection, message, NULL, r);
330 return user_message_dispatch(u, connection, message);
333 const DBusObjectPathVTable bus_user_vtable = {
334 .message_function = user_message_handler
337 char *user_bus_path(User *u) {
342 if (asprintf(&s, "/org/freedesktop/login1/user/%llu", (unsigned long long) u->uid) < 0)
348 int user_send_signal(User *u, bool new_user) {
356 m = dbus_message_new_signal("/org/freedesktop/login1",
357 "org.freedesktop.login1.Manager",
358 new_user ? "UserNew" : "UserRemoved");
363 p = user_bus_path(u);
369 if (!dbus_message_append_args(
371 DBUS_TYPE_UINT32, &uid,
372 DBUS_TYPE_OBJECT_PATH, &p,
376 if (!dbus_connection_send(u->manager->bus, m, NULL))
382 dbus_message_unref(m);
388 int user_send_changed(User *u, const char *properties) {
398 p = user_bus_path(u);
402 m = bus_properties_changed_new(p, "org.freedesktop.login1.User", properties);
406 if (!dbus_connection_send(u->manager->bus, m, NULL))
413 dbus_message_unref(m);