+static int nologin_timeout_handler(
+ sd_event_source *s,
+ uint64_t usec,
+ void *userdata) {
+
+ Manager *m = userdata;
+ int r;
+
+ log_info("Creating /run/nologin, blocking further logins...");
+
+ r = write_string_file_atomic("/run/nologin", "System is going down.");
+ if (r < 0)
+ log_error_errno(r, "Failed to create /run/nologin: %m");
+ else
+ m->unlink_nologin = true;
+
+ return 0;
+}
+
+static int update_schedule_file(Manager *m) {
+
+ int r;
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_free_ char *t = NULL, *temp_path = NULL;
+
+ assert(m);
+
+ r = mkdir_safe_label("/run/systemd/shutdown", 0755, 0, 0);
+ if (r < 0)
+ return log_error_errno(r, "Failed to create shutdown subdirectory: %m");
+
+ t = cescape(m->wall_message);
+ if (!t)
+ return log_oom();
+
+ r = fopen_temporary("/run/systemd/shutdown/scheduled", &f, &temp_path);
+ if (r < 0)
+ return log_error_errno(r, "Failed to save information about scheduled shutdowns: %m");
+
+ (void) fchmod(fileno(f), 0644);
+
+ fprintf(f,
+ "USEC="USEC_FMT"\n"
+ "WARN_WALL=%i\n"
+ "MODE=%s\n",
+ m->scheduled_shutdown_timeout,
+ m->enable_wall_messages,
+ m->scheduled_shutdown_type);
+
+ if (!isempty(m->wall_message))
+ fprintf(f, "WALL_MESSAGE=%s\n", t);
+
+ (void) fflush_and_check(f);
+
+ if (ferror(f) || rename(temp_path, "/run/systemd/shutdown/scheduled") < 0) {
+ log_error_errno(errno, "Failed to write information about scheduled shutdowns: %m");
+ r = -errno;
+
+ (void) unlink(temp_path);
+ (void) unlink("/run/systemd/shutdown/scheduled");
+ }
+
+ return r;
+}
+
+static int manager_scheduled_shutdown_handler(
+ sd_event_source *s,
+ uint64_t usec,
+ void *userdata) {
+
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ Manager *m = userdata;
+ const char *target;
+ int r;
+
+ assert(m);
+
+ if (isempty(m->scheduled_shutdown_type))
+ return 0;
+
+ if (streq(m->scheduled_shutdown_type, "halt"))
+ target = SPECIAL_HALT_TARGET;
+ else if (streq(m->scheduled_shutdown_type, "poweroff"))
+ target = SPECIAL_POWEROFF_TARGET;
+ else
+ target = SPECIAL_REBOOT_TARGET;
+
+ r = execute_shutdown_or_sleep(m, 0, target, &error);
+ if (r < 0)
+ return log_error_errno(r, "Unable to execute transition to %s: %m", target);
+
+ return 0;
+}
+
+static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+ _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+ const char *action_multiple_sessions = NULL;
+ const char *action_ignore_inhibit = NULL;
+ const char *action = NULL;
+ uint64_t elapse;
+ char *type;
+ int r;
+
+ assert(m);
+ assert(message);
+
+ r = sd_bus_message_read(message, "st", &type, &elapse);
+ if (r < 0)
+ return r;
+
+ if (streq(type, "reboot")) {
+ action = "org.freedesktop.login1.reboot";
+ action_multiple_sessions = "org.freedesktop.login1.reboot-multiple-sessions";
+ action_ignore_inhibit = "org.freedesktop.login1.reboot-ignore-inhibit";
+ } else if (streq(type, "halt")) {
+ action = "org.freedesktop.login1.halt";
+ action_multiple_sessions = "org.freedesktop.login1.halt-multiple-sessions";
+ action_ignore_inhibit = "org.freedesktop.login1.halt-ignore-inhibit";
+ } else if (streq(type, "poweroff")) {
+ action = "org.freedesktop.login1.poweroff";
+ action_multiple_sessions = "org.freedesktop.login1.poweroff-multiple-sessions";
+ action_ignore_inhibit = "org.freedesktop.login1.poweroff-ignore-inhibit";
+ } else
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unsupported shutdown type");
+
+ r = verify_shutdown_creds(m, message, INHIBIT_SHUTDOWN, false,
+ action, action_multiple_sessions, action_ignore_inhibit, error);
+ if (r != 0)
+ return r;
+
+ if (m->scheduled_shutdown_timeout_source) {
+ r = sd_event_source_set_time(m->scheduled_shutdown_timeout_source, elapse);
+ if (r < 0)
+ return log_error_errno(r, "sd_event_source_set_time() failed: %m");
+
+ r = sd_event_source_set_enabled(m->scheduled_shutdown_timeout_source, SD_EVENT_ONESHOT);
+ if (r < 0)
+ return log_error_errno(r, "sd_event_source_set_enabled() failed: %m");
+ } else {
+ r = sd_event_add_time(m->event, &m->scheduled_shutdown_timeout_source,
+ CLOCK_REALTIME, elapse, 0, manager_scheduled_shutdown_handler, m);
+ if (r < 0)
+ return log_error_errno(r, "sd_event_add_time() failed: %m");
+ }
+
+ r = free_and_strdup(&m->scheduled_shutdown_type, type);
+ if (r < 0) {
+ m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source);
+ return log_oom();
+ }
+
+ if (m->nologin_timeout_source) {
+ r = sd_event_source_set_time(m->nologin_timeout_source, elapse);
+ if (r < 0)
+ return log_error_errno(r, "sd_event_source_set_time() failed: %m");
+
+ r = sd_event_source_set_enabled(m->nologin_timeout_source, SD_EVENT_ONESHOT);
+ if (r < 0)
+ return log_error_errno(r, "sd_event_source_set_enabled() failed: %m");
+ } else {
+ r = sd_event_add_time(m->event, &m->nologin_timeout_source,
+ CLOCK_REALTIME, elapse - 5 * USEC_PER_MINUTE, 0, nologin_timeout_handler, m);
+ if (r < 0)
+ return log_error_errno(r, "sd_event_add_time() failed: %m");
+ }
+
+ m->scheduled_shutdown_timeout = elapse;
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_TTY|SD_BUS_CREDS_UID, &creds);
+ if (r >= 0) {
+ const char *tty;
+
+ (void) sd_bus_creds_get_uid(creds, &m->scheduled_shutdown_uid);
+ (void) sd_bus_creds_get_tty(creds, &tty);
+
+ r = free_and_strdup(&m->scheduled_shutdown_tty, tty);
+ if (r < 0) {
+ m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source);
+ return log_oom();
+ }
+ }
+
+ r = manager_setup_wall_message_timer(m);
+ if (r < 0)
+ return r;
+
+ if (!isempty(type)) {
+ r = update_schedule_file(m);
+ if (r < 0)
+ return r;
+ } else
+ (void) unlink("/run/systemd/shutdown/scheduled");
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_cancel_scheduled_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+ bool cancelled;
+
+ assert(m);
+ assert(message);
+
+ cancelled = m->scheduled_shutdown_type != NULL;
+
+ m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source);
+ m->wall_message_timeout_source = sd_event_source_unref(m->wall_message_timeout_source);
+ m->nologin_timeout_source = sd_event_source_unref(m->nologin_timeout_source);
+ free(m->scheduled_shutdown_type);
+ m->scheduled_shutdown_type = NULL;
+ m->scheduled_shutdown_timeout = 0;
+
+ if (cancelled) {
+ _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+ const char *tty = NULL;
+ uid_t uid = 0;
+ int r;
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_TTY|SD_BUS_CREDS_UID, &creds);
+ if (r >= 0) {
+ (void) sd_bus_creds_get_uid(creds, &uid);
+ (void) sd_bus_creds_get_tty(creds, &tty);
+ }
+
+ utmp_wall("The system shutdown has been cancelled",
+ lookup_uid(uid), tty, logind_wall_tty_filter, m);
+ }
+
+ return sd_bus_reply_method_return(message, "b", cancelled);
+}
+
+static int method_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
~ianmdlvl / elogind.git / commitdiff