dstIndex += 4;

        // Padding to align data to 8-byte boundary
        dstIndex += 4;

        // Write lease V2 data (52 bytes total)
        leaseKey.encode(dst, dstIndex); // LeaseKey (16 bytes)
        dstIndex += 16;

        SMBUtil.writeInt4(leaseState, dst, dstIndex); // LeaseState (4 bytes)
        dstIndex += 4;

        SMBUtil.writeInt4(leaseFlags, dst, dstIndex); // LeaseFlags (4 bytes)

     *
     * @param key 16-byte array
     * @throws IllegalArgumentException if key is not 16 bytes
     */
    public Smb2LeaseKey(byte[] key) {
        if (key == null) {
            throw new IllegalArgumentException("Lease key cannot be null");
        }
        if (key.length != LEASE_KEY_SIZE) {
            throw new IllegalArgumentException("Lease key must be 16 bytes, got " + key.length);
        }

    }

    /**
     * Create a handle GUID from existing bytes
     * @param bytes the 16-byte GUID data in little-endian format (SMB wire format)
     */
    public HandleGuid(byte[] bytes) {
        if (bytes.length != 16) {
            throw new IllegalArgumentException("GUID must be 16 bytes");
        }

        // MS-SMB2 specifies little-endian byte ordering for GUID components

        mockConfig = mock(Configuration.class);
        mockContext = mock(CIFSContext.class);
        when(mockContext.getConfig()).thenReturn(mockConfig);

        // Create a test file ID (16 bytes)
        testFileId = new byte[16];
        for (int i = 0; i < 16; i++) {
            testFileId[i] = (byte) (i + 1);
        }

        testFileName = "test-file.txt";
        request = new Smb2CloseRequest(mockConfig, testFileId, testFileName);

    }

    /**
     * Update the file ID after successful create response
     * @param newFileId the new 16-byte file ID
     */
    public void updateFileId(byte[] newFileId) {
        if (newFileId.length != 16) {
            throw new IllegalArgumentException("File ID must be 16 bytes");
        }
        System.arraycopy(newFileId, 0, this.fileId, 0, 16);
    }

    @Override

        byte[] actualMachineId = new byte[32];
        System.arraycopy(value, 16, actualMachineId, 0, 32);
        assertArrayEquals(expectedMachineId, actualMachineId);

        // Verify the size field (first 4 bytes)
        assertEquals(48, (value[0] & 0xFF) | ((value[1] & 0xFF) << 8) | ((value[2] & 0xFF) << 16) | ((value[3] & 0xFF) << 24));
    }

    /**

        mockConfig = mock(Configuration.class);
        mockContext = mock(CIFSContext.class);
        when(mockContext.getConfig()).thenReturn(mockConfig);

        // Create a test file ID (16 bytes)
        testFileId = new byte[16];
        for (int i = 0; i < 16; i++) {
            testFileId[i] = (byte) (i + 1);
        }

        request = new Smb2FlushRequest(mockConfig, testFileId);
    }

    @Test

        // Nonces should have proper size
        assertEquals(16, nonce1.length, "GCM nonce should be 16 bytes");
        assertEquals(16, nonce2.length, "GCM nonce should be 16 bytes");
        assertEquals(16, nonce3.length, "GCM nonce should be 16 bytes");

        // For GCM, last 4 bytes should contain incrementing counter

    private static final int SIGNATURE_LENGTH = 16;

    @BeforeAll
    static void setupClass() {
        // Ensure BouncyCastle provider is available for AES-CMAC
        if (Security.getProvider(BouncyCastleProvider.PROVIDER_NAME) == null) {
            Security.addProvider(new BouncyCastleProvider());
        }
    }

    @BeforeEach
    void setup() {
        sessionKey = new byte[16];
        Arrays.fill(sessionKey, (byte) 0xAA);

	MOVF	F2, 16(R1)
	MOVF	F2, (R1)

	//
	// store ints and bytes
	//
	//	LMOVW rreg ',' addr
	//	{
	//		outcode(int($1), &$2, 0, &$4);
	//	}
	MOVW	R1, foo<>+3(SB)
	MOVW	R1, 16(R2)
	MOVW	R1, (R2)
	MOVW	R1, foo<>+3(SB)
	MOVW	R1, 16(R2)
	MOVW	R1, (R2)
	SC	R1, (R2)

	//	LMOVB rreg ',' addr
	//	{
	//		outcode(int($1), &$2, 0, &$4);
	//	}
	MOVB	R1, foo<>+3(SB)
	MOVB	R1, 16(R2)