1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd.
5 Copyright 2011 Lennart Poettering
11 #include "alloc-util.h"
13 #include "format-util.h"
14 #include "logind-user.h"
16 #include "signal-util.h"
18 #include "user-util.h"
20 static int property_get_display(
23 const char *interface,
25 sd_bus_message *reply,
27 sd_bus_error *error) {
29 _cleanup_free_ char *p = NULL;
36 p = u->display ? session_bus_path(u->display) : strdup("/");
40 return sd_bus_message_append(reply, "(so)", u->display ? u->display->id : "", p);
43 static int property_get_state(
46 const char *interface,
48 sd_bus_message *reply,
50 sd_bus_error *error) {
58 return sd_bus_message_append(reply, "s", user_state_to_string(user_get_state(u)));
61 static int property_get_sessions(
64 const char *interface,
66 sd_bus_message *reply,
68 sd_bus_error *error) {
78 r = sd_bus_message_open_container(reply, 'a', "(so)");
82 LIST_FOREACH(sessions_by_user, session, u->sessions) {
83 _cleanup_free_ char *p = NULL;
85 p = session_bus_path(session);
89 r = sd_bus_message_append(reply, "(so)", session->id, p);
95 return sd_bus_message_close_container(reply);
98 static int property_get_idle_hint(
101 const char *interface,
102 const char *property,
103 sd_bus_message *reply,
105 sd_bus_error *error) {
113 return sd_bus_message_append(reply, "b", user_get_idle_hint(u, NULL) > 0);
116 static int property_get_idle_since_hint(
119 const char *interface,
120 const char *property,
121 sd_bus_message *reply,
123 sd_bus_error *error) {
126 dual_timestamp t = DUAL_TIMESTAMP_NULL;
133 user_get_idle_hint(u, &t);
134 k = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
136 return sd_bus_message_append(reply, "t", k);
139 static int property_get_linger(
142 const char *interface,
143 const char *property,
144 sd_bus_message *reply,
146 sd_bus_error *error) {
155 r = user_check_linger_file(u);
157 return sd_bus_message_append(reply, "b", r > 0);
160 int bus_user_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
167 r = bus_verify_polkit_async(
170 "org.freedesktop.login1.manage",
174 &u->manager->polkit_registry,
179 return 1; /* Will call us back */
181 r = user_stop(u, true);
185 return sd_bus_reply_method_return(message, NULL);
188 int bus_user_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) {
196 r = bus_verify_polkit_async(
199 "org.freedesktop.login1.manage",
203 &u->manager->polkit_registry,
208 return 1; /* Will call us back */
210 r = sd_bus_message_read(message, "i", &signo);
214 if (!SIGNAL_VALID(signo))
215 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);
217 r = user_kill(u, signo);
221 return sd_bus_reply_method_return(message, NULL);
224 const sd_bus_vtable user_vtable[] = {
225 SD_BUS_VTABLE_START(0),
227 SD_BUS_PROPERTY("UID", "u", bus_property_get_uid, offsetof(User, uid), SD_BUS_VTABLE_PROPERTY_CONST),
228 SD_BUS_PROPERTY("GID", "u", bus_property_get_gid, offsetof(User, gid), SD_BUS_VTABLE_PROPERTY_CONST),
229 SD_BUS_PROPERTY("Name", "s", NULL, offsetof(User, name), SD_BUS_VTABLE_PROPERTY_CONST),
230 BUS_PROPERTY_DUAL_TIMESTAMP("Timestamp", offsetof(User, timestamp), SD_BUS_VTABLE_PROPERTY_CONST),
231 SD_BUS_PROPERTY("RuntimePath", "s", NULL, offsetof(User, runtime_path), SD_BUS_VTABLE_PROPERTY_CONST),
232 SD_BUS_PROPERTY("Service", "s", NULL, offsetof(User, service), SD_BUS_VTABLE_PROPERTY_CONST),
233 SD_BUS_PROPERTY("Slice", "s", NULL, offsetof(User, slice), SD_BUS_VTABLE_PROPERTY_CONST),
234 SD_BUS_PROPERTY("Display", "(so)", property_get_display, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
235 SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0),
236 SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, 0),
237 SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
238 SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
239 SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
240 SD_BUS_PROPERTY("Linger", "b", property_get_linger, 0, 0),
242 SD_BUS_METHOD("Terminate", NULL, NULL, bus_user_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED),
243 SD_BUS_METHOD("Kill", "i", NULL, bus_user_method_kill, SD_BUS_VTABLE_UNPRIVILEGED),
248 int user_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
249 Manager *m = userdata;
260 if (streq(path, "/org/freedesktop/login1/user/self")) {
261 sd_bus_message *message;
263 message = sd_bus_get_current_message(bus);
267 r = manager_get_user_from_creds(m, message, UID_INVALID, error, &user);
273 p = startswith(path, "/org/freedesktop/login1/user/_");
277 r = parse_uid(p, &uid);
281 user = hashmap_get(m->users, UID_TO_PTR(uid));
290 char *user_bus_path(User *u) {
295 if (asprintf(&s, "/org/freedesktop/login1/user/_"UID_FMT, u->uid) < 0)
301 int user_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
302 _cleanup_strv_free_ char **l = NULL;
303 sd_bus_message *message;
304 Manager *m = userdata;
313 HASHMAP_FOREACH(user, m->users, i) {
316 p = user_bus_path(user);
320 r = strv_consume(&l, p);
325 message = sd_bus_get_current_message(bus);
327 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
330 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds);
332 r = sd_bus_creds_get_owner_uid(creds, &uid);
334 user = hashmap_get(m->users, UID_TO_PTR(uid));
336 r = strv_extend(&l, "/org/freedesktop/login1/user/self");
344 *nodes = TAKE_PTR(l);
349 int user_send_signal(User *u, bool new_user) {
350 _cleanup_free_ char *p = NULL;
354 p = user_bus_path(u);
358 return sd_bus_emit_signal(
360 "/org/freedesktop/login1",
361 "org.freedesktop.login1.Manager",
362 new_user ? "UserNew" : "UserRemoved",
363 "uo", (uint32_t) u->uid, p);
366 int user_send_changed(User *u, const char *properties, ...) {
367 _cleanup_free_ char *p = NULL;
375 p = user_bus_path(u);
379 l = strv_from_stdarg_alloca(properties);
381 return sd_bus_emit_properties_changed_strv(u->manager->bus, p, "org.freedesktop.login1.User", l);