+ InhibitWhat w,
+ const char *action,
+ const char *action_multiple_sessions,
+ const char *action_ignore_inhibit,
+ const char *sleep_type,
+ DBusError *error,
+ DBusMessage **_reply) {
+
+ bool multiple_sessions, challenge, blocked, b;
+ const char *result;
+ DBusMessage *reply = NULL;
+ int r;
+ unsigned long ul;
+
+ assert(m);
+ assert(connection);
+ assert(message);
+ assert(w >= 0);
+ assert(w <= _INHIBIT_WHAT_MAX);
+ assert(action);
+ assert(action_multiple_sessions);
+ assert(action_ignore_inhibit);
+ assert(error);
+ assert(_reply);
+
+ if (sleep_type) {
+ r = can_sleep(sleep_type);
+ if (r < 0)
+ return r;
+
+ if (r == 0) {
+ result = "na";
+ goto finish;
+ }
+ }
+
+ ul = dbus_bus_get_unix_user(connection, dbus_message_get_sender(message), error);
+ if (ul == (unsigned long) -1)
+ return -EIO;
+
+ r = have_multiple_sessions(m, (uid_t) ul);
+ if (r < 0)
+ return r;
+
+ multiple_sessions = r > 0;
+ blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, (uid_t) ul);
+
+ if (multiple_sessions) {
+ r = verify_polkit(connection, message, action_multiple_sessions, false, &challenge, error);
+ if (r < 0)
+ return r;
+
+ if (r > 0)
+ result = "yes";
+ else if (challenge)
+ result = "challenge";
+ else
+ result = "no";
+ }
+
+ if (blocked) {
+ r = verify_polkit(connection, message, action_ignore_inhibit, false, &challenge, error);
+ if (r < 0)
+ return r;
+
+ if (r > 0 && !result)
+ result = "yes";
+ else if (challenge && (!result || streq(result, "yes")))
+ result = "challenge";
+ else
+ result = "no";
+ }
+
+ if (!multiple_sessions && !blocked) {
+ /* If neither inhibit nor multiple sessions
+ * apply then just check the normal policy */
+
+ r = verify_polkit(connection, message, action, false, &challenge, error);
+ if (r < 0)
+ return r;
+
+ if (r > 0)
+ result = "yes";
+ else if (challenge)
+ result = "challenge";
+ else
+ result = "no";
+ }
+
+finish:
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ return -ENOMEM;
+
+ b = dbus_message_append_args(
+ reply,
+ DBUS_TYPE_STRING, &result,
+ DBUS_TYPE_INVALID);
+ if (!b) {
+ dbus_message_unref(reply);
+ return -ENOMEM;
+ }
+
+ *_reply = reply;
+ return 0;
+}
+
+static int bus_manager_log_shutdown(
+ Manager *m,
+ InhibitWhat w,
+ const char *unit_name) {
+
+ const char *p, *q;
+
+ assert(m);
+ assert(unit_name);
+
+ if (w != INHIBIT_SHUTDOWN)
+ return 0;
+
+ if (streq(unit_name, SPECIAL_POWEROFF_TARGET)) {
+ p = "MESSAGE=System is powering down.";
+ q = "SHUTDOWN=power-off";
+ } else if (streq(unit_name, SPECIAL_HALT_TARGET)) {
+ p = "MESSAGE=System is halting.";
+ q = "SHUTDOWN=halt";
+ } else if (streq(unit_name, SPECIAL_REBOOT_TARGET)) {
+ p = "MESSAGE=System is rebooting.";
+ q = "SHUTDOWN=reboot";
+ } else if (streq(unit_name, SPECIAL_KEXEC_TARGET)) {
+ p = "MESSAGE=System is rebooting with kexec.";
+ q = "SHUTDOWN=kexec";
+ } else {
+ p = "MESSAGE=System is shutting down.";
+ q = NULL;
+ }
+
+ return log_struct(LOG_NOTICE, MESSAGE_ID(SD_MESSAGE_SHUTDOWN),
+ p,
+ q, NULL);
+}
+
+int bus_manager_shutdown_or_sleep_now_or_later(
+ Manager *m,
+ const char *unit_name,
+ InhibitWhat w,