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",
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_message *message, void *userdata, sd_bus_error *error) {
233 r = sd_bus_message_read(message, "s", &name);
237 session = hashmap_get(s->manager->sessions, name);
239 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
241 if (session->seat != s)
242 return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", name, s->id);
244 r = session_activate(session);
248 return sd_bus_reply_method_return(message, NULL);
251 static int method_switch_to(sd_bus_message *message, void *userdata, sd_bus_error *error) {
259 r = sd_bus_message_read(message, "u", &to);
266 r = seat_switch_to(s, to);
270 return sd_bus_reply_method_return(message, NULL);
273 static int method_switch_to_next(sd_bus_message *message, void *userdata, sd_bus_error *error) {
280 r = seat_switch_to_next(s);
284 return sd_bus_reply_method_return(message, NULL);
287 static int method_switch_to_previous(sd_bus_message *message, void *userdata, sd_bus_error *error) {
294 r = seat_switch_to_previous(s);
298 return sd_bus_reply_method_return(message, NULL);
301 const sd_bus_vtable seat_vtable[] = {
302 SD_BUS_VTABLE_START(0),
304 SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Seat, id), SD_BUS_VTABLE_PROPERTY_CONST),
305 SD_BUS_PROPERTY("ActiveSession", "(so)", property_get_active_session, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
306 SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, SD_BUS_VTABLE_PROPERTY_CONST),
307 SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, SD_BUS_VTABLE_PROPERTY_CONST),
308 SD_BUS_PROPERTY("CanGraphical", "b", property_get_can_graphical, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
309 SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
310 SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
311 SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
312 SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
314 SD_BUS_METHOD("Terminate", NULL, NULL, bus_seat_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED),
315 SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
316 SD_BUS_METHOD("SwitchTo", "u", NULL, method_switch_to, SD_BUS_VTABLE_UNPRIVILEGED),
317 SD_BUS_METHOD("SwitchToNext", NULL, NULL, method_switch_to_next, SD_BUS_VTABLE_UNPRIVILEGED),
318 SD_BUS_METHOD("SwitchToPrevious", NULL, NULL, method_switch_to_previous, SD_BUS_VTABLE_UNPRIVILEGED),
323 int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
324 Manager *m = userdata;
334 if (streq(path, "/org/freedesktop/login1/seat/self")) {
335 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
336 sd_bus_message *message;
340 message = sd_bus_get_current_message(bus);
344 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds);
348 r = sd_bus_creds_get_session(creds, &name);
352 session = hashmap_get(m->sessions, name);
356 seat = session->seat;
358 _cleanup_free_ char *e = NULL;
361 p = startswith(path, "/org/freedesktop/login1/seat/");
365 e = bus_label_unescape(p);
369 seat = hashmap_get(m->seats, e);
379 char *seat_bus_path(Seat *s) {
380 _cleanup_free_ char *t = NULL;
384 t = bus_label_escape(s->id);
388 return strappend("/org/freedesktop/login1/seat/", t);
391 int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
392 _cleanup_strv_free_ char **l = NULL;
393 sd_bus_message *message;
394 Manager *m = userdata;
403 HASHMAP_FOREACH(seat, m->seats, i) {
406 p = seat_bus_path(seat);
410 r = strv_consume(&l, p);
415 message = sd_bus_get_current_message(bus);
417 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
421 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds);
423 r = sd_bus_creds_get_session(creds, &name);
425 session = hashmap_get(m->sessions, name);
426 if (session && session->seat) {
427 r = strv_extend(&l, "/org/freedesktop/login1/seat/self");
441 int seat_send_signal(Seat *s, bool new_seat) {
442 _cleanup_free_ char *p = NULL;
446 p = seat_bus_path(s);
450 return sd_bus_emit_signal(
452 "/org/freedesktop/login1",
453 "org.freedesktop.login1.Manager",
454 new_seat ? "SeatNew" : "SeatRemoved",
458 int seat_send_changed(Seat *s, const char *properties, ...) {
459 _cleanup_free_ char *p = NULL;
467 p = seat_bus_path(s);
471 l = strv_from_stdarg_alloca(properties);
473 return sd_bus_emit_properties_changed_strv(s->manager->bus, p, "org.freedesktop.login1.Seat", l);