andx = null;

            dst[start + ANDX_COMMAND_OFFSET] = (byte) 0xFF;
            dst[start + ANDX_RESERVED_OFFSET] = (byte) 0x00;
            //            dst[start + ANDX_OFFSET_OFFSET] = (byte)0x00;
            //            dst[start + ANDX_OFFSET_OFFSET + 1] = (byte)0x00;
            dst[start + ANDX_OFFSET_OFFSET] = (byte) 0xde;
            dst[start + ANDX_OFFSET_OFFSET + 1] = (byte) 0xde;

        timeout = 0xFFFFFFFF;
        maxParameterCount = 6;
        maxDataCount = 1;
        maxSetupCount = (byte) 0x00;
        setupCount = 2;
    }

    @Override
    int writeSetupWireFormat(final byte[] dst, int dstIndex) {
        dst[dstIndex] = subCommand;
        dstIndex++;
        dst[dstIndex++] = (byte) 0x00;
        // this says "Transaction priority" in netmon
        writeInt2(fid, dst, dstIndex);
        return 4;

        totalDataCount = 0;
        maxParameterCount = 0;
        maxDataCount = 4096;
        maxSetupCount = (byte) 0x00;
    }

    @Override
    int writeSetupWireFormat(final byte[] dst, int dstIndex) {
        dst[dstIndex] = subCommand;
        dstIndex++;
        dst[dstIndex++] = (byte) 0x00;
        return 2;
    }

    @Override
    int writeParametersWireFormat(final byte[] dst, int dstIndex) {

            dstIndex += 2;
            writeInt2(ntHash.length, dst, dstIndex);
        }
        dstIndex += 2;
        dst[dstIndex] = (byte) 0x00;
        dstIndex++;
        dst[dstIndex++] = (byte) 0x00;
        dst[dstIndex++] = (byte) 0x00;
        dst[dstIndex++] = (byte) 0x00;
        writeInt4(capabilities, dst, dstIndex);
        dstIndex += 4;

        return dstIndex - start;
    }

    @Override

        this.filename = filename;
        command = SMB_COM_TRANSACTION2;
        subCommand = TRANS2_FIND_NEXT2;
        informationLevel = Trans2FindFirst2.SMB_FILE_BOTH_DIRECTORY_INFO;
        flags = 0x00;
        maxParameterCount = 8;
        maxDataCount = Trans2FindFirst2.LIST_SIZE;
        maxSetupCount = 0;
    }

    @Override
    void reset(final int resumeKey, final String lastName) {
        super.reset();

        // SMB2 header
        validator.validateSmbHeader(0x424D53FE, 64, 0x00);
    }

    @Test
    public void testInvalidProtocolId() throws Exception {
        assertThrows(SmbException.class, () -> {
            validator.validateSmbHeader(0xDEADBEEF, 64, 0x00);
        });
    }

    @Test
    public void testInvalidSmb1HeaderSize() throws Exception {

	{"$(112+8)", "$120"},
	{"$(1<<63)", "$-9223372036854775808"},
	{"$-1", "$-1"},
	{"$0", "$0"},
	{"$0-0", "$0"},
	{"$0-16", "$-16"},
	{"$0x000FFFFFFFFFFFFF", "$4503599627370495"},
	{"$0x01", "$1"},
	{"$0x02", "$2"},
	{"$0x04", "$4"},
	{"$0x3FE", "$1022"},
	{"$0x7fffffe00000", "$140737486258176"},
	{"$0xfffffffffffff001", "$-4095"},
	{"$1", "$1"},
	{"$1.0", "$(1.0)"},
	{"$10", "$10"},
	{"$1000", "$1000"},

        ByteBuffer bb = ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN);
        bb.putShort((short) fid);
        bb.put((byte) 0x00); // Reserved
        bb.put((byte) 0x00); // Reserved
        bb.putInt(securityInformation);
        return bb.array();
    }

    /**
     * Provide a range of values that are valid for the constructor.
     */

        // per bouncycastle
        // <li>1: K(i) := PRF( KI, [i]_2 || Label || 0x00 || Context || [L]_2 ) with the counter at the very beginning
        // of the fixedInputData (The default implementation has this format)</li>
        // with the parameters
        // <li>1. KDFCounterParameters(ki, null, "Label || 0x00 || Context || [L]_2]", 8);

        // all fixed inputs go into the suffix:
        // + label

    void testSetDataSize() {
        response.dataSize = 1024;
        assertEquals(1024, response.dataSize);
    }

    @Test
    void testSetGrantedAccess() {
        response.grantedAccess = 0x02; // FILE_WRITE_DATA
        assertEquals(0x02, response.grantedAccess);
    }

    @Test
    void testSetFileType() {
        response.fileType = 1;
        assertEquals(1, response.fileType);
    }

    @Test