+
+ r = sd_bus_negotiate_creds(bus, _SD_BUS_CREDS_ALL);
+ if (r < 0) {
+ log_error("Failed to enable credentials: %s", strerror(-r));
+ goto finish;
+ }
+
+ r = sd_bus_negotiate_timestamp(bus, true);
+ if (r < 0) {
+ log_error("Failed to enable timestamps: %s", strerror(-r));
+ goto finish;
+ }
+
+ r = sd_bus_negotiate_fds(bus, true);
+ if (r < 0) {
+ log_error("Failed to enable fds: %s", strerror(-r));
+ goto finish;
+ }