2 This file is part of systemd.
4 Copyright 2011 Lennart Poettering
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
23 #include "alloc-util.h"
24 #include "bus-common-errors.h"
25 #include "bus-label.h"
27 #include "logind-seat.h"
30 #include "user-util.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, 0),
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_(sd_bus_creds_unrefp) 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_(sd_bus_creds_unrefp) 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);