int headerStart = 0;
        int bodyStart = Smb2Constants.SMB2_HEADER_LENGTH;

        // Write SMB2 header (64 bytes)
        // Protocol ID
        System.arraycopy(new byte[] { (byte) 0xFE, 'S', 'M', 'B' }, 0, buffer, headerStart, 4);
        // Structure size (64)
        SMBUtil.writeInt2(64, buffer, headerStart + 4);
        // Credit charge
        SMBUtil.writeInt2(1, buffer, headerStart + 6);

        mockName = new Name(mockConfig, "DOMAIN", 0x1B, null); // Domain Master Browser
        NbtAddress nbtAddress = new NbtAddress(mockName, testAddressInt, false, NbtAddress.H_NODE);
        assertEquals(NbtAddress.SMBSERVER_NAME, nbtAddress.firstCalledName());

        mockName = new Name(mockConfig, "DOMAIN", 0x1C, null); // Domain Controller

        @DisplayName("Should handle file ID updates")
        void testFileIdUpdates() {
            // Initial file ID
            byte[] initialFileId = new byte[16];
            Arrays.fill(initialFileId, (byte) 0x11);
            request.setFileId(initialFileId);

            byte[] buffer1 = new byte[256];
            request.writeBytesWireFormat(buffer1, 0);

    static final byte SMB_COM_CHECK_DIRECTORY = (byte) 0x10;
    static final byte SMB_COM_TRANSACTION = (byte) 0x25;
    static final byte SMB_COM_TRANSACTION_SECONDARY = (byte) 0x26;
    static final byte SMB_COM_MOVE = (byte) 0x2A;
    static final byte SMB_COM_ECHO = (byte) 0x2B;
    static final byte SMB_COM_OPEN_ANDX = (byte) 0x2D;
    static final byte SMB_COM_READ_ANDX = (byte) 0x2E;
    static final byte SMB_COM_WRITE_ANDX = (byte) 0x2F;

     * DCE/RPC message for NetrDfsEnumEx operation to enumerate DFS entries
     */
    public static class NetrDfsEnumEx extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x15;
        }

        /**
         * Return value from the RPC call
         */
        public int retval;
        /**
         * DFS name to enumerate
         */
        public String dfs_name;

        originalPairs.add(new AvTimestamp(new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 }));
        originalPairs.add(new AvTargetName("TESTNAME".getBytes()));
        originalPairs.add(new AvSingleHost(new byte[] { 0x11, 0x22, 0x33, 0x44 }));
        originalPairs.add(new AvChannelBindings(new byte[] { 0x55, 0x66 }));

        byte[] encoded = AvPairs.encode(originalPairs);
        List<AvPair> decodedPairs = AvPairs.decode(encoded);

   * {@code ByteBuffer.allocate(2).putShort(value).array()}. For example, the input value {@code
   * (short) 0x1234} would yield the byte array {@code {0x12, 0x34}}.
   *
   * <p>If you need to convert and concatenate several values (possibly even of different types),
   * use a shared {@link java.nio.ByteBuffer} instance, or use {@link

   * {@code ByteBuffer.allocate(2).putShort(value).array()}. For example, the input value {@code
   * (short) 0x1234} would yield the byte array {@code {0x12, 0x34}}.
   *
   * <p>If you need to convert and concatenate several values (possibly even of different types),
   * use a shared {@link java.nio.ByteBuffer} instance, or use {@link

     */
    public static final int FILE_NO_IMTERMEDIATE_BUFFERING = 0x8;
    /**
     * All operations on the file are performed synchronously with alerts
     */
    public static final int FILE_SYNCHRONOUS_IO_ALERT = 0x10;
    /**
     * All operations on the file are performed synchronously without alerts
     */
    public static final int FILE_SYNCHRONOUS_IO_NONALERT = 0x20;
    /**

        SmbRandomAccessFile raf = spy(newInstance("r", false, false, false));
        doAnswer(inv -> {
            byte[] b = inv.getArgument(0);
            int off = inv.getArgument(1);
            b[off] = 0x12;
            b[off + 1] = 0x34;
            return 2;
        }).when(raf).read(any(byte[].class), anyInt(), eq(2));
        assertEquals(0x1234, raf.readUnsignedShort());