// Build a sample buffer
            int bufferIndex = 0;
            bufferIndex += 2; // reserved
            writeInt2(dataCompactionMode, buffer, bufferIndex);
            bufferIndex += 2;
            bufferIndex += 2; // reserved
            writeInt2(dataLength, buffer, bufferIndex);
            bufferIndex += 2;
            writeInt2(dataOffset, buffer, bufferIndex);
        }

        @Test

        bufferIndex += 4;
        this.capabilities = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.maximalAccess = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        return bufferIndex - start;
    }

        bufferIndex += 4;
        final Decodable i = createInformation(this.expectInfoType, this.expectInfoClass);
        if (i != null) {
            i.decode(buffer, bufferOffset, bufferLength);
        }
        bufferIndex = Math.max(bufferIndex, bufferOffset + bufferLength);
        this.info = i;
        return bufferIndex - start;
    }

    @Override
    int readParameterWordsWireFormat(final byte[] buffer, int bufferIndex) {
        if (wordCount == 0) {
            return 0;
        }
        fileAttributes = readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        lastWriteTime = readUTime(buffer, bufferIndex);
        bufferIndex += 4;
        fileSize = readInt4(buffer, bufferIndex);
        return 20;
    }

    @Override

        if (this.wordCount == 0) {
            return 0;
        }
        this.fileAttributes = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.lastWriteTime = SMBUtil.readUTime(buffer, bufferIndex);
        bufferIndex += 4;
        this.fileSize = SMBUtil.readInt4(buffer, bufferIndex);
        return 20;
    }

    @Override

        return 0;
    }

    @Override
    protected int readParametersWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return 0;
    }

    @Override
    protected int readDataWireFormat(final byte[] buffer, int bufferIndex, final int len) {
        final int start = bufferIndex;

    public int decode(final byte[] buffer, int bufferIndex, final int len) throws SMBProtocolDecodingException {
        final int start = bufferIndex;
        final int nciphers = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;

        this.ciphers = new int[nciphers];
        for (int i = 0; i < nciphers; i++) {
            this.ciphers[i] = SMBUtil.readInt2(buffer, bufferIndex);
            bufferIndex += 2;
        }

    @Override
    public int decode(final byte[] buffer, int bufferIndex, final int len) throws SMBProtocolDecodingException {
        final int start = bufferIndex;
        bufferIndex += 4; // skip idFileSystem

        this.sectPerAlloc = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        this.alloc = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        }

        final short dataOffset = buffer[bufferIndex + 2];
        bufferIndex += 4;
        this.dataLength = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.dataRemaining = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        bufferIndex += 4; // Reserved2

        final int dataStart = getHeaderStart() + dataOffset;

    public int decode(byte[] buffer, int bufferIndex, int len) throws SMBProtocolDecodingException {
        if (len < 8) {
            throw new SMBProtocolDecodingException("Invalid compression context length: " + len);
        }

        int start = bufferIndex;

        // Read compression count
        int compressionCount = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;