int off = 0;
        int tot = buf.getLength() - 24;
        while ( off < tot ) {
            int fragSize = tot - off;
            if ( ( 24 + fragSize ) > this.max_xmit ) {
                // need fragementation
                msg.flags &= ~DCERPC_LAST_FRAG;
                fragSize = this.max_xmit - 24;
            }
            else {
                msg.flags |= DCERPC_LAST_FRAG;

        (byte)0x40, (byte)0x23, (byte)0x24, (byte)0x25
    };
    /* Accepts key multiple of 7
     * Returns enc multiple of 8
     * Multiple is the same like: 21 byte key gives 24 byte result
     */
    private static void E( byte[] key, byte[] data, byte[] e ) {
        byte[] key7 = new byte[7];
        byte[] e8 = new byte[8];

        for( int i = 0; i < key.length / 7; i++ ) {

        return size8(Smb2Constants.SMB2_HEADER_LENGTH + 24);
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#writeBytesWireFormat(byte[], int)
     */
    @Override
    protected int writeBytesWireFormat ( byte[] dst, int dstIndex ) {
        int start = dstIndex;
        SMBUtil.writeInt2(24, dst, dstIndex);
        dstIndex += 2;

        dst[ dstIndex ] = (byte) ( val & 0xFF );
    }


    static void writeInt4 ( int val, byte[] dst, int dstIndex ) {
        dst[ dstIndex++ ] = (byte) ( ( val >> 24 ) & 0xFF );
        dst[ dstIndex++ ] = (byte) ( ( val >> 16 ) & 0xFF );
        dst[ dstIndex++ ] = (byte) ( ( val >> 8 ) & 0xFF );
        dst[ dstIndex ] = (byte) ( val & 0xFF );
    }

            md.update((byte) ( ms_usage & 0xFF ));
            md.update((byte) ( ( ms_usage >> 8 ) & 0xFF ));
            md.update((byte) ( ( ms_usage >> 16 ) & 0xFF ));
            md.update((byte) ( ( ms_usage >> 24 ) & 0xFF ));
            byte[] dgst = md.digest(data);
            mac.reset();
            mac.init(new SecretKeySpec(dk, HMAC_KEY));
            return mac.doFinal(dgst);
        }
        finally {

        Encdec.enc_uint32le(0x00000000, temp, 4); // Reserved
        Encdec.enc_uint64le(nanos1601, temp, 8);
        System.arraycopy(clientChallenge, 0, temp, 16, 8);
        Encdec.enc_uint32le(0x00000000, temp, 24); // Unknown
        if ( avPairs != null )
            System.arraycopy(avPairs, 0, temp, 28, avPairsLength);
        Encdec.enc_uint32le(0x00000000, temp, 28 + avPairsLength); // mystery bytes!

     */
    @Override
    public int encode ( byte[] dst, int dstIndex ) {
        int start = dstIndex;

        System.arraycopy(this.sourceKey, 0, dst, dstIndex, 24);
        dstIndex += 24;

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

        dstIndex += 4; // Reserved

        for ( SrvCopychunk chk : this.chunks ) {

        decrypt = new byte[result.length];
        System.arraycopy(result, 0, decrypt, 0, result.length);

        int tempSize = decrypt.length - 24;

        byte[] output = new byte[tempSize];
        System.arraycopy(decrypt, 24, output, 0, tempSize);

        decrypt = output;
        return decrypt;
    }

                    pcr[j] = pc1m[l];
                else
                    pcr[j] = pc1m[l-28];
            }
            for ( j = 0; j < 24; ++j ) {
                if ( pcr[pc2[j]] != 0 )
                    kn[m] |= bigbyte[j];
                if ( pcr[pc2[j+24]] != 0 )
                    kn[n] |= bigbyte[j];
            }
        }
        cookey( kn, KnL );
    }

        int start = bufferIndex;
        int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if ( structureSize != 24 ) {
            throw new SMBProtocolDecodingException("Expected structureSize = 24");
        }

        this.oplockLevel = buffer[ bufferIndex + 2 ];
        bufferIndex += 4;
        bufferIndex += 4; // Reserved2

        this.fileId = new byte[16];