+ if (nbd_server) {
+ error_setg(errp, "NBD server already running");
+ return;
+ }
+
+ nbd_server = g_new0(NBDServerData, 1);
+ nbd_server->watch = -1;
+ nbd_server->listen_ioc = qio_channel_socket_new();
+ if (qio_channel_socket_listen_sync(
+ nbd_server->listen_ioc, addr, errp) < 0) {
+ goto error;
+ }
+
+ if (has_tls_creds) {
+ nbd_server->tlscreds = nbd_get_tls_creds(tls_creds, errp);
+ if (!nbd_server->tlscreds) {
+ goto error;
+ }
+
+ if (addr->type != SOCKET_ADDRESS_KIND_INET) {
+ error_setg(errp, "TLS is only supported with IPv4/IPv6");
+ goto error;
+ }
+ }