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 *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
204 r = bus_verify_polkit_async(
207 "org.freedesktop.login1.manage",
210 &s->manager->polkit_registry,
215 return 1; /* Will call us back */
217 r = seat_stop_sessions(s, true);
221 return sd_bus_reply_method_return(message, NULL);
224 static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
234 r = sd_bus_message_read(message, "s", &name);
238 session = hashmap_get(s->manager->sessions, name);
240 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
242 if (session->seat != s)
243 return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", name, s->id);
245 r = session_activate(session);
249 return sd_bus_reply_method_return(message, NULL);
252 static int method_switch_to(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
261 r = sd_bus_message_read(message, "u", &to);
268 r = seat_switch_to(s, to);
272 return sd_bus_reply_method_return(message, NULL);
275 static int method_switch_to_next(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
283 r = seat_switch_to_next(s);
287 return sd_bus_reply_method_return(message, NULL);
290 static int method_switch_to_previous(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
298 r = seat_switch_to_previous(s);
302 return sd_bus_reply_method_return(message, NULL);
305 const sd_bus_vtable seat_vtable[] = {
306 SD_BUS_VTABLE_START(0),
308 SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Seat, id), SD_BUS_VTABLE_PROPERTY_CONST),
309 SD_BUS_PROPERTY("ActiveSession", "(so)", property_get_active_session, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
310 SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, SD_BUS_VTABLE_PROPERTY_CONST),
311 SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, SD_BUS_VTABLE_PROPERTY_CONST),
312 SD_BUS_PROPERTY("CanGraphical", "b", property_get_can_graphical, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
313 SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
314 SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
315 SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
316 SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
318 SD_BUS_METHOD("Terminate", NULL, NULL, bus_seat_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED),
319 SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
320 SD_BUS_METHOD("SwitchTo", "u", NULL, method_switch_to, SD_BUS_VTABLE_UNPRIVILEGED),
321 SD_BUS_METHOD("SwitchToNext", NULL, NULL, method_switch_to_next, SD_BUS_VTABLE_UNPRIVILEGED),
322 SD_BUS_METHOD("SwitchToPrevious", NULL, NULL, method_switch_to_previous, SD_BUS_VTABLE_UNPRIVILEGED),
327 int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
328 Manager *m = userdata;
338 if (streq(path, "/org/freedesktop/login1/seat/self")) {
339 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
340 sd_bus_message *message;
344 message = sd_bus_get_current_message(bus);
348 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds);
352 r = sd_bus_creds_get_session(creds, &name);
356 session = hashmap_get(m->sessions, name);
360 seat = session->seat;
362 _cleanup_free_ char *e = NULL;
365 p = startswith(path, "/org/freedesktop/login1/seat/");
369 e = bus_label_unescape(p);
373 seat = hashmap_get(m->seats, e);
383 char *seat_bus_path(Seat *s) {
384 _cleanup_free_ char *t = NULL;
388 t = bus_label_escape(s->id);
392 return strappend("/org/freedesktop/login1/seat/", t);
395 int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
396 _cleanup_strv_free_ char **l = NULL;
397 sd_bus_message *message;
398 Manager *m = userdata;
407 HASHMAP_FOREACH(seat, m->seats, i) {
410 p = seat_bus_path(seat);
414 r = strv_consume(&l, p);
419 message = sd_bus_get_current_message(bus);
421 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
425 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds);
427 r = sd_bus_creds_get_session(creds, &name);
429 session = hashmap_get(m->sessions, name);
430 if (session && session->seat) {
431 r = strv_extend(&l, "/org/freedesktop/login1/seat/self");
445 int seat_send_signal(Seat *s, bool new_seat) {
446 _cleanup_free_ char *p = NULL;
450 p = seat_bus_path(s);
454 return sd_bus_emit_signal(
456 "/org/freedesktop/login1",
457 "org.freedesktop.login1.Manager",
458 new_seat ? "SeatNew" : "SeatRemoved",
462 int seat_send_changed(Seat *s, const char *properties, ...) {
463 _cleanup_free_ char *p = NULL;
471 p = seat_bus_path(s);
475 l = strv_from_stdarg_alloca(properties);
477 return sd_bus_emit_properties_changed_strv(s->manager->bus, p, "org.freedesktop.login1.Seat", l);