* securityBufferOffset is set relative to header start.
     */
    private void buildSessionSetupBody(byte[] buf, int headerStart, int bodyStart, int sessionFlags, int secBufOffset, byte[] blob) {
        // StructureSize (must be 9)
        SMBUtil.writeInt2(9, buf, bodyStart);
        // SessionFlags at +2
        SMBUtil.writeInt2(sessionFlags, buf, bodyStart + 2);
        // SecurityBufferOffset (+4) and Length (+6)

            long chtime, long allocSize, long eof, int attrs, byte[] fileId) {
        byte[] body = new byte[2 + 2 + 4 + 8 + 8 + 8 + 8 + 8 + 8 + 4 + 4 + 16 + 4 + 4];
        int i = 0;
        SMBUtil.writeInt2(89, body, i); // StructureSize
        body[i + 2] = oplock;
        body[i + 3] = openFlags;
        i += 4;

        SMBUtil.writeInt4(createAction, body, i); // CreateAction
        i += 4;

            SMBProtocolDecodingException exception =
                    assertThrows(SMBProtocolDecodingException.class, () -> notification.readBytesWireFormat(buffer, 0));

            assertEquals("Expected structureSize = 24", exception.getMessage());
        }

        @ParameterizedTest
        @DisplayName("Should read different oplock levels correctly")
        @ValueSource(bytes = { 0x00, 0x01, 0x02, 0x08, (byte) 0xFF })

            SMBProtocolDecodingException exception =
                    assertThrows(SMBProtocolDecodingException.class, () -> response.readBytesWireFormat(buffer, 0));
            assertEquals("Expected structureSize = 60", exception.getMessage());
        }

        @ParameterizedTest
        @ValueSource(ints = { 0, 10, 20, 30 })
        @DisplayName("Should correctly read from different buffer offsets")

     * Context name for durable handle request
     */
    public static final String CONTEXT_NAME = "DHnQ";

    private static final byte[] CONTEXT_NAME_BYTES = CONTEXT_NAME.getBytes();
    private static final int STRUCTURE_SIZE = 16;

    private long reserved; // Must be zero

    /**
     * Create a new durable handle request
     */
    public DurableHandleRequest() {
        this.reserved = 0;
    }

    @Override

     * Context name for durable handle reconnect
     */
    public static final String CONTEXT_NAME = "DHnC";

    private static final byte[] CONTEXT_NAME_BYTES = CONTEXT_NAME.getBytes();
    private static final int STRUCTURE_SIZE = 16;

    private byte[] fileId; // 16-byte file ID from previous open

    /**
     * Create a new durable handle reconnect context
     * @param fileId the 16-byte file ID from the previous open
     */

     * Context name for durable handle V2 request
     */
    public static final String CONTEXT_NAME = "DH2Q";

    private static final byte[] CONTEXT_NAME_BYTES = CONTEXT_NAME.getBytes();
    private static final int STRUCTURE_SIZE = 32; // Corrected to 32 bytes as per MS-SMB2

    // MS-SMB2: Timeout is specified in 100-nanosecond intervals, but we store in milliseconds
    private long timeoutMs; // timeout in milliseconds (for application use)

        writeInt2(buffer, offset + 6, nameLen);  // NameLength
        writeInt2(buffer, offset + 8, 0);  // Reserved
        writeInt2(buffer, offset + 10, STRUCTURE_SIZE);  // DataOffset
        writeInt4(buffer, offset + 12, STRUCTURE_SIZE);  // DataLength
        
        // Name
        System.arraycopy(getName().getBytes(), 0, buffer, offset + 16, nameLen);
        
        // Data (16 bytes of reserved)