domainInfo.sid = new rpc.sid_t();
        domainInfo.sid.revision = 1;
        domainInfo.sid.identifier_authority = new byte[] { 0, 0, 0, 0, 0, 5 };
        domainInfo.sid.sub_authority_count = 2;
        domainInfo.sid.sub_authority = new int[] { 21, 12345 };

        // Encode to buffer
        byte[] buffer = new byte[1024];
        NdrBuffer encodeBuffer = new NdrBuffer(buffer, 0);
        domainInfo.encode(encodeBuffer);

   * @since 8.0
   */
  public static final byte SP = 32;

  /**
   * Alternate name for {@link #SP}.
   *
   * @since 8.0
   */
  public static final byte SPACE = 32;

  /**
   * Delete: This character is used primarily to "erase" or "obliterate" erroneous or unwanted
   * characters in perforated tape.
   *
   * @since 8.0
   */
  public static final byte DEL = 127;

  /**

    private Configuration mockConfig;
    private CIFSContext mockContext;
    private SecureRandom mockRandom;
    private Smb2NegotiateRequest request;
    private byte[] testMachineId = new byte[16];
    private byte[] testSalt = new byte[32];

    @BeforeEach
    void setUp() {
        mockConfig = mock(Configuration.class);
        mockContext = mock(CIFSContext.class);
        mockRandom = mock(SecureRandom.class);

     */
    public HandleGuid(UUID uuid) {
        this.guid = uuid;
    }

    /**
     * Convert the GUID to byte array for wire format (little-endian as per MS-SMB2)
     * @return 16-byte array representing the GUID in SMB wire format
     */
    public byte[] toBytes() {
        byte[] result = new byte[16];
        ByteBuffer bb = ByteBuffer.wrap(result).order(java.nio.ByteOrder.LITTLE_ENDIAN);

/**
 * SMB1 COM_LOCKING_ANDX command implementation.
 *
 * This command locks or unlocks byte ranges within a file. It can also
 * be used to break oplocks and change oplock levels.
 *
 * @author mbechler
 */
public class SmbComLockingAndX extends AndXServerMessageBlock {

    private int fid;
    private byte typeOfLock;
    private byte newOpLockLevel;
    private long timeout;
    private LockingAndXRange[] locks;

    // KGS!@#$%
    private static final byte[] S8 =
            { (byte) 0x4b, (byte) 0x47, (byte) 0x53, (byte) 0x21, (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(final byte[] key, final byte[] data, final byte[] e) {
        final byte[] key7 = new byte[7];

            SmbTreeHandleImpl sh = newTreeHandle(false); // force non-SMB2 path to avoid server-side branch
            SmbTreeHandleImpl dh = newTreeHandle(false);

            byte[][] buffers = new byte[][] { new byte[8], new byte[8] };

            when(src.toString()).thenReturn("smb://src");
            when(dest.toString()).thenReturn("smb://dest");

            // Act + Assert
            SmbException ex =

        }

        @Test
        @DisplayName("Should handle various file ID sizes")
        void testVariousFileIdSizes() {
            byte[] shortFileId = new byte[8];
            byte[] standardFileId = new byte[16];
            byte[] longFileId = new byte[32];

            assertDoesNotThrow(() -> request.setFileId(shortFileId));
            assertDoesNotThrow(() -> request.setFileId(standardFileId));

        void testDifferentSessionKeys() throws GeneralSecurityException {
            byte[] sessionKey1 = new byte[16];
            Arrays.fill(sessionKey1, (byte) 0x11);

            byte[] sessionKey2 = new byte[16];
            Arrays.fill(sessionKey2, (byte) 0x22);

            Smb2SigningDigest digest1 = new Smb2SigningDigest(sessionKey1, Smb2Constants.SMB2_DIALECT_0202, null);

        byte[] dst = new byte[42];

        // When
        int result = trans2SetFileInformation.writeDataWireFormat(dst, 0);

        // Then
        assertEquals(40, result); // Returns 40 bytes written
    }

    @Test
    void testReadSetupWireFormat() {
        // When
        int result = trans2SetFileInformation.readSetupWireFormat(new byte[0], 0, 0);

        // Then