int start = dstIndex;
        SMBUtil.writeInt2(33, dst, dstIndex);
        dst[ dstIndex + 2 ] = this.infoType;
        dst[ dstIndex + 3 ] = this.fileInfoClass;
        dstIndex += 4;

        int bufferLengthOffset = dstIndex;
        dstIndex += 4;
        int bufferOffsetOffset = dstIndex;
        dstIndex += 4;

        SMBUtil.writeInt4(this.additionalInformation, dst, dstIndex);

pad = pad == 0 ? 0 : 4 - pad;
dataOffset += pad;

        writeInt2( fid, dst, dstIndex );
        dstIndex += 2;
        writeInt4( offset, dst, dstIndex );
        dstIndex += 4;
        for( int i = 0; i < 4; i++ ) {
            dst[dstIndex++] = (byte)0xFF;
        }
        writeInt2( writeMode, dst, dstIndex );
        dstIndex += 2;
        writeInt2( remaining, dst, dstIndex );
        dstIndex += 2;

        int start = dstIndex;
        SMBUtil.writeInt2(32, dst, dstIndex);
        SMBUtil.writeInt2(this.notifyFlags, dst, dstIndex + 2);
        dstIndex += 4;

        SMBUtil.writeInt4(this.outputBufferLength, dst, dstIndex);
        dstIndex += 4;

        System.arraycopy(this.fileId, 0, dst, dstIndex, 16);
        dstIndex += 16;

        SMBUtil.writeInt4(this.completionFilter, dst, dstIndex);

        int start = dstIndex;

        writeInt2( session.transport.snd_buf_size, dst, dstIndex );
        dstIndex += 2;
        writeInt2( session.transport.maxMpxCount, dst, dstIndex );
        dstIndex += 2;
        writeInt2( session.transport.VC_NUMBER, dst, dstIndex );
        dstIndex += 2;
        writeInt4( sessionKey, dst, dstIndex );
        dstIndex += 4;
        if (blob != null) {

        int fnLengthOffset = dstIndex + 2;
        dstIndex += 4;

        SMBUtil.writeInt4(this.outputBufferLength, dst, dstIndex);
        dstIndex += 4;

        if ( this.fileName == null ) {
            SMBUtil.writeInt2(0, dst, fnOffsetOffset);
            SMBUtil.writeInt2(0, dst, fnLengthOffset);
        }
        else {

            int index = offset + SmbConstants.SIGNATURE_OFFSET;
            for ( int i = 0; i < 8; i++ )
                data[ index + i ] = 0;
            SMBUtil.writeInt4(this.signSequence, data, index);
            update(data, offset, length);
            System.arraycopy(digest(), 0, data, index, 8);
            if ( this.bypass ) {
                this.bypass = false;

     */
    @Override
    public int encode ( byte[] dst, int dstIndex ) {
        int start = dstIndex;
        SMBUtil.writeInt8(this.offset, dst, dstIndex);
        dstIndex += 8;
        SMBUtil.writeInt8(this.length, dst, dstIndex);
        dstIndex += 8;

        SMBUtil.writeInt4(this.flags, dst, dstIndex);
        dstIndex += 4;
        dstIndex += 4; // Reserved
        return dstIndex - start;
    }

        int start = dstIndex;

        SMBUtil.writeInt2(this.searchAttributes, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.maxItems, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.tflags, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.informationLevel, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt4(this.searchStorageType, dst, dstIndex);

        dstIndex += 8; // 7 Reserved
        dstIndex += 8; // RootDirectory = 0

        byte[] nameBytes = this.fileName.getBytes(StandardCharsets.UTF_16LE);

        SMBUtil.writeInt4(nameBytes.length, dst, dstIndex);
        dstIndex += 4;

        System.arraycopy(nameBytes, 0, dst, dstIndex, nameBytes.length);
        dstIndex += nameBytes.length;

        return dstIndex - start;
    }

                throw new CIFSException("Failed to encrypt MIC", e);
            }
        }

        byte[] sig = new byte[16];
        SMBUtil.writeInt4(1, sig, 0); // version
        System.arraycopy(trunc, 0, sig, 4, 8); // checksum
        SMBUtil.writeInt4(seqNum, sig, 12); // seqNum

        return sig;
    }


    @Override
    public void verifyMIC ( byte[] data, byte[] mic ) throws CIFSException {