NDR_DIR_IN
#define NDR_MODE_CALL_SEND (NDR_M_OP_MARSHALL + NDR_DIR_IN)
#define NDR_MODE_CALL_RECV (NDR_M_OP_UNMARSHALL + NDR_DIR_IN)
#define NDR_DIR_IS_IN (encl_ref->stream->dir == NDR_DIR_IN)
case NDR_DIR_IN: dir_c = 'I'; break;