if err != nil {
		return nil, err
	}

	_, _, err = z.u.WriteMsgUnix(data, rights, nil)
	if err != nil {
		return nil, err
	}

	// wait for ack
	return z.readMessage(readWriteDeadline)
}

func (z *ZtunnelConnection) readMessage(timeout time.Duration) (*zdsapi.WorkloadResponse, error) {
	m, _, err := readProto[zdsapi.WorkloadResponse](z.u, timeout, nil)
	return m, err
}