public SecurityDescriptor(byte[] buffer, int bufferIndex, int len) throws IOException {
        this.decode(buffer, bufferIndex, len);
    }
    public int decode(byte[] buffer, int bufferIndex, int len) throws IOException {
        int start = bufferIndex;

        bufferIndex++; // revision
        bufferIndex++;
        type = ServerMessageBlock.readInt2(buffer, bufferIndex);
        bufferIndex += 2;

        bufferIndex += 2;
        int ownerUOffset = SMBUtil.readInt4(buffer, bufferIndex); // offset to owner sid
        bufferIndex += 4;
        int ownerGOffset = SMBUtil.readInt4(buffer, bufferIndex); // offset to group sid
        bufferIndex += 4;
        SMBUtil.readInt4(buffer, bufferIndex); // offset to sacl
        bufferIndex += 4;
        int daclOffset = SMBUtil.readInt4(buffer, bufferIndex);

        if ( ownerUOffset > 0 ) {

            bufferIndex += 2;
            flags = readInt2( buffer, bufferIndex );
            bufferIndex += 2;
            if( version == 3 ) {
                proximity = readInt2( buffer, bufferIndex );
                bufferIndex += 2;
                ttl = readInt2( buffer, bufferIndex );
                bufferIndex += 2;
                pathOffset = readInt2( buffer, bufferIndex );

        bufferIndex += 8;

        this.allocationSize = SMBUtil.readInt8(buffer, bufferIndex);
        bufferIndex += 8;
        this.endOfFile = SMBUtil.readInt8(buffer, bufferIndex);
        bufferIndex += 8;

        this.fileAttributes = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        bufferIndex += 4; // Reserved2

    public int decode ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {
        int start = bufferIndex;
        this.namedPipeState = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.readDataAvailable = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.numberOfMessages = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

    public int decode ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {
        int start = bufferIndex;
        this.alloc = SMBUtil.readInt8(buffer, bufferIndex);
        bufferIndex += 8;

        this.free = SMBUtil.readInt8(buffer, bufferIndex);
        bufferIndex += 8;

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

    @Override
    public int decode ( byte[] buffer, int bufferIndex, int len ) {
        int start = bufferIndex;

        this.pathConsumed = SMBUtil.readInt2(buffer, bufferIndex) / 2;
        bufferIndex += 2;
        this.numReferrals = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.tflags = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 4;

        int securityBufferLength = SMBUtil.readInt2(buffer, bufferIndex + 2);
        bufferIndex += 4;

        int pad = bufferIndex - ( getHeaderStart() + securityBufferOffset );
        this.blob = new byte[securityBufferLength];
        System.arraycopy(buffer, getHeaderStart() + securityBufferOffset, this.blob, 0, securityBufferLength);
        bufferIndex += pad;
        bufferIndex += securityBufferLength;

    public int decode ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {
        int start = bufferIndex;
        this.chunksWritten = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.chunkBytesWritten = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        this.totalBytesWritten = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

     */
    @Override
    public int decode ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {
        int start = bufferIndex;
        this.replaceIfExists = buffer[ bufferIndex ] != 0;
        bufferIndex += 8;
        bufferIndex += 8;

        int nameLen = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        byte[] nameBytes = new byte[nameLen];