1 /* SPDX-License-Identifier: LGPL-2.1+ */
6 #include "alloc-util.h"
7 #include "bus-common-errors.h"
10 #include "logind-seat.h"
13 #include "user-util.h"
16 static BUS_DEFINE_PROPERTY_GET(property_get_can_multi_session, "b", Seat, seat_can_multi_session);
17 static BUS_DEFINE_PROPERTY_GET(property_get_can_tty, "b", Seat, seat_can_tty);
18 static BUS_DEFINE_PROPERTY_GET(property_get_can_graphical, "b", Seat, seat_can_graphical);
20 static int property_get_active_session(
23 const char *interface,
25 sd_bus_message *reply,
27 sd_bus_error *error) {
29 _cleanup_free_ char *p = NULL;
36 p = s->active ? session_bus_path(s->active) : strdup("/");
40 return sd_bus_message_append(reply, "(so)", s->active ? s->active->id : "", p);
43 static int property_get_sessions(
46 const char *interface,
48 sd_bus_message *reply,
50 sd_bus_error *error) {
60 r = sd_bus_message_open_container(reply, 'a', "(so)");
64 LIST_FOREACH(sessions_by_seat, session, s->sessions) {
65 _cleanup_free_ char *p = NULL;
67 p = session_bus_path(session);
71 r = sd_bus_message_append(reply, "(so)", session->id, p);
77 r = sd_bus_message_close_container(reply);
84 static int property_get_idle_hint(
87 const char *interface,
89 sd_bus_message *reply,
91 sd_bus_error *error) {
99 return sd_bus_message_append(reply, "b", seat_get_idle_hint(s, NULL) > 0);
102 static int property_get_idle_since_hint(
105 const char *interface,
106 const char *property,
107 sd_bus_message *reply,
109 sd_bus_error *error) {
120 r = seat_get_idle_hint(s, &t);
124 u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
126 return sd_bus_message_append(reply, "t", u);
129 int bus_seat_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
136 r = bus_verify_polkit_async(
139 "org.freedesktop.login1.manage",
143 &s->manager->polkit_registry,
148 return 1; /* Will call us back */
150 r = seat_stop_sessions(s, true);
154 return sd_bus_reply_method_return(message, NULL);
157 static int method_activate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
166 r = sd_bus_message_read(message, "s", &name);
170 session = hashmap_get(s->manager->sessions, name);
172 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
174 if (session->seat != s)
175 return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", name, s->id);
177 r = session_activate(session);
181 return sd_bus_reply_method_return(message, NULL);
184 static int method_switch_to(sd_bus_message *message, void *userdata, sd_bus_error *error) {
192 r = sd_bus_message_read(message, "u", &to);
199 r = seat_switch_to(s, to);
203 return sd_bus_reply_method_return(message, NULL);
206 static int method_switch_to_next(sd_bus_message *message, void *userdata, sd_bus_error *error) {
213 r = seat_switch_to_next(s);
217 return sd_bus_reply_method_return(message, NULL);
220 static int method_switch_to_previous(sd_bus_message *message, void *userdata, sd_bus_error *error) {
227 r = seat_switch_to_previous(s);
231 return sd_bus_reply_method_return(message, NULL);
234 const sd_bus_vtable seat_vtable[] = {
235 SD_BUS_VTABLE_START(0),
237 SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Seat, id), SD_BUS_VTABLE_PROPERTY_CONST),
238 SD_BUS_PROPERTY("ActiveSession", "(so)", property_get_active_session, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
239 SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, SD_BUS_VTABLE_PROPERTY_CONST),
240 SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, SD_BUS_VTABLE_PROPERTY_CONST),
241 SD_BUS_PROPERTY("CanGraphical", "b", property_get_can_graphical, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
242 SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, 0),
243 SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
244 SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
245 SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
247 SD_BUS_METHOD("Terminate", NULL, NULL, bus_seat_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED),
248 SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
249 SD_BUS_METHOD("SwitchTo", "u", NULL, method_switch_to, SD_BUS_VTABLE_UNPRIVILEGED),
250 SD_BUS_METHOD("SwitchToNext", NULL, NULL, method_switch_to_next, SD_BUS_VTABLE_UNPRIVILEGED),
251 SD_BUS_METHOD("SwitchToPrevious", NULL, NULL, method_switch_to_previous, SD_BUS_VTABLE_UNPRIVILEGED),
256 int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
257 Manager *m = userdata;
267 if (streq(path, "/org/freedesktop/login1/seat/self")) {
268 sd_bus_message *message;
270 message = sd_bus_get_current_message(bus);
274 r = manager_get_seat_from_creds(m, message, NULL, error, &seat);
278 _cleanup_free_ char *e = NULL;
281 p = startswith(path, "/org/freedesktop/login1/seat/");
285 e = bus_label_unescape(p);
289 seat = hashmap_get(m->seats, e);
298 char *seat_bus_path(Seat *s) {
299 _cleanup_free_ char *t = NULL;
303 t = bus_label_escape(s->id);
307 return strappend("/org/freedesktop/login1/seat/", t);
310 int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
311 _cleanup_strv_free_ char **l = NULL;
312 sd_bus_message *message;
313 Manager *m = userdata;
322 HASHMAP_FOREACH(seat, m->seats, i) {
325 p = seat_bus_path(seat);
329 r = strv_consume(&l, p);
334 message = sd_bus_get_current_message(bus);
336 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
340 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds);
342 r = sd_bus_creds_get_session(creds, &name);
344 session = hashmap_get(m->sessions, name);
345 if (session && session->seat) {
346 r = strv_extend(&l, "/org/freedesktop/login1/seat/self");
354 *nodes = TAKE_PTR(l);
359 int seat_send_signal(Seat *s, bool new_seat) {
360 _cleanup_free_ char *p = NULL;
364 p = seat_bus_path(s);
368 return sd_bus_emit_signal(
370 "/org/freedesktop/login1",
371 "org.freedesktop.login1.Manager",
372 new_seat ? "SeatNew" : "SeatRemoved",
376 int seat_send_changed(Seat *s, const char *properties, ...) {
377 _cleanup_free_ char *p = NULL;
385 p = seat_bus_path(s);
389 l = strv_from_stdarg_alloca(properties);
391 return sd_bus_emit_properties_changed_strv(s->manager->bus, p, "org.freedesktop.login1.Seat", l);