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/>.
24 #include <sys/capability.h>
29 #include "bus-errors.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);
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 const sd_bus_vtable seat_vtable[] = {
240 SD_BUS_VTABLE_START(0),
242 SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Seat, id), SD_BUS_VTABLE_PROPERTY_CONST),
243 SD_BUS_PROPERTY("ActiveSession", "(so)", property_get_active_session, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
244 SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, SD_BUS_VTABLE_PROPERTY_CONST),
245 SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, SD_BUS_VTABLE_PROPERTY_CONST),
246 SD_BUS_PROPERTY("CanGraphical", "b", property_get_can_graphical, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
247 SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
248 SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
249 SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
250 SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
252 SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
253 SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
258 int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
259 Manager *m = userdata;
269 if (streq(path, "/org/freedesktop/login1/seat/self")) {
270 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
271 sd_bus_message *message;
275 message = sd_bus_get_current(bus);
279 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
283 r = sd_bus_creds_get_pid(creds, &pid);
287 r = manager_get_session_by_pid(m, pid, &session);
294 seat = session->seat;
296 _cleanup_free_ char *e = NULL;
299 p = startswith(path, "/org/freedesktop/login1/seat/");
303 e = sd_bus_label_unescape(p);
307 seat = hashmap_get(m->seats, e);
316 char *seat_bus_path(Seat *s) {
317 _cleanup_free_ char *t = NULL;
321 t = sd_bus_label_escape(s->id);
325 return strappend("/org/freedesktop/login1/seat/", t);
328 int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
329 _cleanup_strv_free_ char **l = NULL;
330 Manager *m = userdata;
339 HASHMAP_FOREACH(seat, m->seats, i) {
342 p = seat_bus_path(seat);
346 r = strv_push(&l, p);
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);