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 static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
204 r = seat_stop_sessions(s, true);
208 return sd_bus_reply_method_return(message, NULL);
211 static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
221 r = sd_bus_message_read(message, "s", &name);
225 session = hashmap_get(s->manager->sessions, name);
227 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
229 if (session->seat != s)
230 return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", name, s->id);
232 r = session_activate(session);
236 return sd_bus_reply_method_return(message, NULL);
239 static int method_switch_to(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
248 r = sd_bus_message_read(message, "u", &to);
255 r = seat_switch_to(s, to);
259 return sd_bus_reply_method_return(message, NULL);
262 static int method_switch_to_next(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
270 r = seat_switch_to_next(s);
274 return sd_bus_reply_method_return(message, NULL);
277 static int method_switch_to_previous(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
285 r = seat_switch_to_previous(s);
289 return sd_bus_reply_method_return(message, NULL);
292 const sd_bus_vtable seat_vtable[] = {
293 SD_BUS_VTABLE_START(0),
295 SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Seat, id), SD_BUS_VTABLE_PROPERTY_CONST),
296 SD_BUS_PROPERTY("ActiveSession", "(so)", property_get_active_session, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
297 SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, SD_BUS_VTABLE_PROPERTY_CONST),
298 SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, SD_BUS_VTABLE_PROPERTY_CONST),
299 SD_BUS_PROPERTY("CanGraphical", "b", property_get_can_graphical, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
300 SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
301 SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
302 SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
303 SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
305 SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
306 SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
307 SD_BUS_METHOD("SwitchTo", "u", NULL, method_switch_to, SD_BUS_VTABLE_UNPRIVILEGED),
308 SD_BUS_METHOD("SwitchToNext", NULL, NULL, method_switch_to_next, SD_BUS_VTABLE_UNPRIVILEGED),
309 SD_BUS_METHOD("SwitchToPrevious", NULL, NULL, method_switch_to_previous, SD_BUS_VTABLE_UNPRIVILEGED),
314 int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
315 Manager *m = userdata;
325 if (streq(path, "/org/freedesktop/login1/seat/self")) {
326 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
327 sd_bus_message *message;
331 message = sd_bus_get_current_message(bus);
335 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds);
339 r = sd_bus_creds_get_session(creds, &name);
343 session = hashmap_get(m->sessions, name);
347 seat = session->seat;
349 _cleanup_free_ char *e = NULL;
352 p = startswith(path, "/org/freedesktop/login1/seat/");
356 e = bus_label_unescape(p);
360 seat = hashmap_get(m->seats, e);
370 char *seat_bus_path(Seat *s) {
371 _cleanup_free_ char *t = NULL;
375 t = bus_label_escape(s->id);
379 return strappend("/org/freedesktop/login1/seat/", t);
382 int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
383 _cleanup_strv_free_ char **l = NULL;
384 Manager *m = userdata;
393 HASHMAP_FOREACH(seat, m->seats, i) {
396 p = seat_bus_path(seat);
400 r = strv_consume(&l, p);
405 r = strv_extend(&l, "/org/freedesktop/login1/seat/self");
415 int seat_send_signal(Seat *s, bool new_seat) {
416 _cleanup_free_ char *p = NULL;
420 p = seat_bus_path(s);
424 return sd_bus_emit_signal(
426 "/org/freedesktop/login1",
427 "org.freedesktop.login1.Manager",
428 new_seat ? "SeatNew" : "SeatRemoved",
432 int seat_send_changed(Seat *s, const char *properties, ...) {
433 _cleanup_free_ char *p = NULL;
441 p = seat_bus_path(s);
445 l = strv_from_stdarg_alloca(properties);
447 return sd_bus_emit_properties_changed_strv(s->manager->bus, p, "org.freedesktop.login1.Seat", l);