/**
     * Wait indefinitely for a response
     */
    NO_TIMEOUT,

    /**
     * Do not retry request on failure
     */
    NO_RETRY,

    /**
     * Save the raw payload for further inspection
     */
    RETAIN_PAYLOAD

    protected void haveResponse ( byte[] buffer, int start, int len ) throws SMBProtocolDecodingException {
        if ( isRetainPayload() ) {
            byte[] payload = new byte[len];
            System.arraycopy(buffer, start, payload, 0, len);
            setRawPayload(payload);
        }

        if ( !verifySignature(buffer, start, len) ) {

        int len = bufferIndex - start;
        this.length = len;

        if ( isRetainPayload() ) {
            byte[] payload = new byte[len];
            System.arraycopy(buffer, 4, payload, 0, len);
            setRawPayload(payload);
        }

        if ( !verifySignature(buffer, 4, len) ) {

    @Override
    protected int readDataWireFormat ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {
        if ( len > this.outputBuffer.length ) {
            throw new SMBProtocolDecodingException("Payload exceeds buffer size");
        }
        System.arraycopy(buffer, bufferIndex, this.outputBuffer, 0, len);
        return len;

    }


    @Override
    public String toString () {

        Request curReq = request;
        long firstKey = 0;
        while ( curResp != null ) {
            curResp.reset();

            if ( params.contains(RequestParam.RETAIN_PAYLOAD) ) {
                curResp.retainPayload();
            }

            long k = makeKey(curReq);

            if ( firstKey == 0 ) {
                firstKey = k;
            }

/**
 * @author mbechler
 *
 */
public interface Message {

    /**
     * Indicate that this message should retain it's raw payload
     */
    void retainPayload ();


    /**
     * 
     * @return whether to retain the message payload
     */
    boolean isRetainPayload ();


    /**
     * 
     * @return the raw response message
     */
    byte[] getRawPayload ();

    @Override
    protected int readDataWireFormat ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {
        if ( len > this.outputBuffer.length ) {
            throw new SMBProtocolDecodingException("Payload exceeds buffer size");
        }
        System.arraycopy(buffer, bufferIndex, this.outputBuffer, 0, len);
        return len;
    }


    @Override
    public String toString () {

                            response.setDigest(dgst);
                            byte[] payload = response.getRawPayload();
                            if ( !response.verifySignature(payload, 0, payload.length) ) {
                                throw new SmbException("Signature validation failed");
                            }
                        }

            int size = Encdec.dec_uint16be( sbuf, 2 ) & 0xFFFF;
            if (size < 33 || (4 + size) > sbuf.length ) {
                throw new IOException( "Invalid payload size: " + size );
            }
            readn( in, sbuf, 4 + 32, size - 32 );
            resp.decode( sbuf, 4 );

            if (log.level >= 4) {
                log.println( resp );

        }

        int len = bufferIndex - start;
        this.length = len;

        if ( isRetainPayload() ) {
            byte[] payload = new byte[len];
            System.arraycopy(buffer, 4, payload, 0, len);
            setRawPayload(payload);
        }

        if ( !verifySignature(buffer, 4, len) ) {