#include "formats-util.h"
#include "process-util.h"
#include "terminal-util.h"
+#include "utmp-wtmp.h"
int manager_get_session_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Session **ret) {
_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
error);
}
+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,
static int method_schedule_shutdown(sd_bus *bus, 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;
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\n");
+
+ 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\n");
+ } 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\n");
+ }
+
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);
}
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);
}
const sd_bus_vtable manager_vtable[] = {
SD_BUS_VTABLE_START(0),
+ SD_BUS_WRITABLE_PROPERTY("EnableWallMessages", "b", NULL, NULL, offsetof(Manager, enable_wall_messages), 0),
+ SD_BUS_WRITABLE_PROPERTY("WallMessage", "s", NULL, NULL, offsetof(Manager, wall_message), 0),
+
SD_BUS_PROPERTY("NAutoVTs", "u", NULL, offsetof(Manager, n_autovts), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("KillOnlyUsers", "as", NULL, offsetof(Manager, kill_only_users), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("KillExcludeUsers", "as", NULL, offsetof(Manager, kill_exclude_users), SD_BUS_VTABLE_PROPERTY_CONST),
~ianmdlvl / elogind.git / blobdiff