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 Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
28 #include "bus-common-errors.h"
29 #include "bus-label.h"
31 #include "logind-seat.h"
33 static int property_get_active_session(
36 const char *interface,
38 sd_bus_message *reply,
40 sd_bus_error *error) {
42 _cleanup_free_ char *p = NULL;
49 p = s->active ? session_bus_path(s->active) : strdup("/");
53 return sd_bus_message_append(reply, "(so)", s->active ? s->active->id : "", p);
56 static int property_get_can_multi_session(
59 const char *interface,
61 sd_bus_message *reply,
63 sd_bus_error *error) {
71 return sd_bus_message_append(reply, "b", seat_can_multi_session(s));
74 static int property_get_can_tty(
77 const char *interface,
79 sd_bus_message *reply,
81 sd_bus_error *error) {
89 return sd_bus_message_append(reply, "b", seat_can_tty(s));
92 static int property_get_can_graphical(
95 const char *interface,
97 sd_bus_message *reply,
99 sd_bus_error *error) {
107 return sd_bus_message_append(reply, "b", seat_can_graphical(s));
110 static int property_get_sessions(
113 const char *interface,
114 const char *property,
115 sd_bus_message *reply,
117 sd_bus_error *error) {
127 r = sd_bus_message_open_container(reply, 'a', "(so)");
131 LIST_FOREACH(sessions_by_seat, session, s->sessions) {
132 _cleanup_free_ char *p = NULL;
134 p = session_bus_path(session);
138 r = sd_bus_message_append(reply, "(so)", session->id, p);
144 r = sd_bus_message_close_container(reply);
151 static int property_get_idle_hint(
154 const char *interface,
155 const char *property,
156 sd_bus_message *reply,
158 sd_bus_error *error) {
166 return sd_bus_message_append(reply, "b", seat_get_idle_hint(s, NULL) > 0);
169 static int property_get_idle_since_hint(
172 const char *interface,
173 const char *property,
174 sd_bus_message *reply,
176 sd_bus_error *error) {
187 r = seat_get_idle_hint(s, &t);
191 u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
193 return sd_bus_message_append(reply, "t", u);
196 int bus_seat_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
203 r = bus_verify_polkit_async(
206 "org.freedesktop.login1.manage",
209 &s->manager->polkit_registry,
214 return 1; /* Will call us back */
216 r = seat_stop_sessions(s, true);
220 return sd_bus_reply_method_return(message, NULL);
223 static int method_activate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
232 r = sd_bus_message_read(message, "s", &name);
236 session = hashmap_get(s->manager->sessions, name);
238 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
240 if (session->seat != s)
241 return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", name, s->id);
243 r = session_activate(session);
247 return sd_bus_reply_method_return(message, NULL);
250 static int method_switch_to(sd_bus_message *message, void *userdata, sd_bus_error *error) {
258 r = sd_bus_message_read(message, "u", &to);
265 r = seat_switch_to(s, to);
269 return sd_bus_reply_method_return(message, NULL);
272 static int method_switch_to_next(sd_bus_message *message, void *userdata, sd_bus_error *error) {
279 r = seat_switch_to_next(s);
283 return sd_bus_reply_method_return(message, NULL);
286 static int method_switch_to_previous(sd_bus_message *message, void *userdata, sd_bus_error *error) {
293 r = seat_switch_to_previous(s);
297 return sd_bus_reply_method_return(message, NULL);
300 const sd_bus_vtable seat_vtable[] = {
301 SD_BUS_VTABLE_START(0),
303 SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Seat, id), SD_BUS_VTABLE_PROPERTY_CONST),
304 SD_BUS_PROPERTY("ActiveSession", "(so)", property_get_active_session, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
305 SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, SD_BUS_VTABLE_PROPERTY_CONST),
306 SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, SD_BUS_VTABLE_PROPERTY_CONST),
307 SD_BUS_PROPERTY("CanGraphical", "b", property_get_can_graphical, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
308 SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
309 SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
310 SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
311 SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
313 SD_BUS_METHOD("Terminate", NULL, NULL, bus_seat_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED),
314 SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
315 SD_BUS_METHOD("SwitchTo", "u", NULL, method_switch_to, SD_BUS_VTABLE_UNPRIVILEGED),
316 SD_BUS_METHOD("SwitchToNext", NULL, NULL, method_switch_to_next, SD_BUS_VTABLE_UNPRIVILEGED),
317 SD_BUS_METHOD("SwitchToPrevious", NULL, NULL, method_switch_to_previous, SD_BUS_VTABLE_UNPRIVILEGED),
322 int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
323 Manager *m = userdata;
333 if (streq(path, "/org/freedesktop/login1/seat/self")) {
334 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
335 sd_bus_message *message;
339 message = sd_bus_get_current_message(bus);
343 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds);
347 r = sd_bus_creds_get_session(creds, &name);
351 session = hashmap_get(m->sessions, name);
355 seat = session->seat;
357 _cleanup_free_ char *e = NULL;
360 p = startswith(path, "/org/freedesktop/login1/seat/");
364 e = bus_label_unescape(p);
368 seat = hashmap_get(m->seats, e);
378 char *seat_bus_path(Seat *s) {
379 _cleanup_free_ char *t = NULL;
383 t = bus_label_escape(s->id);
387 return strappend("/org/freedesktop/login1/seat/", t);
390 int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
391 _cleanup_strv_free_ char **l = NULL;
392 sd_bus_message *message;
393 Manager *m = userdata;
402 HASHMAP_FOREACH(seat, m->seats, i) {
405 p = seat_bus_path(seat);
409 r = strv_consume(&l, p);
414 message = sd_bus_get_current_message(bus);
416 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
420 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds);
422 r = sd_bus_creds_get_session(creds, &name);
424 session = hashmap_get(m->sessions, name);
425 if (session && session->seat) {
426 r = strv_extend(&l, "/org/freedesktop/login1/seat/self");
440 int seat_send_signal(Seat *s, bool new_seat) {
441 _cleanup_free_ char *p = NULL;
445 p = seat_bus_path(s);
449 return sd_bus_emit_signal(
451 "/org/freedesktop/login1",
452 "org.freedesktop.login1.Manager",
453 new_seat ? "SeatNew" : "SeatRemoved",
457 int seat_send_changed(Seat *s, const char *properties, ...) {
458 _cleanup_free_ char *p = NULL;
466 p = seat_bus_path(s);
470 l = strv_from_stdarg_alloca(properties);
472 return sd_bus_emit_properties_changed_strv(s->manager->bus, p, "org.freedesktop.login1.Seat", l);