assertEquals(0x6, AvPair.MsvAvFlags, "MsvAvFlags constant should be 0x6.");
        assertEquals(0x7, AvPair.MsvAvTimestamp, "MsvAvTimestamp constant should be 0x7.");
        assertEquals(0x08, AvPair.MsvAvSingleHost, "MsvAvSingleHost constant should be 0x08.");
        assertEquals(0x09, AvPair.MsvAvTargetName, "MsvAvTargetName constant should be 0x09.");
        assertEquals(0x0A, AvPair.MsvAvChannelBindings, "MsvAvChannelBindings constant should be 0x0A.");

        assertEquals(0x00, SmbConstants.FLAGS_NONE);
        assertEquals(0x01, SmbConstants.FLAGS_LOCK_AND_READ_WRITE_AND_UNLOCK);
        assertEquals(0x02, SmbConstants.FLAGS_RECEIVE_BUFFER_POSTED);
        assertEquals(0x08, SmbConstants.FLAGS_PATH_NAMES_CASELESS);
        assertEquals(0x10, SmbConstants.FLAGS_PATH_NAMES_CANONICALIZED);
        assertEquals(0x20, SmbConstants.FLAGS_OPLOCK_REQUESTED_OR_GRANTED);

            byte[] buffer = new byte[24];
            // Skip idFileSystem (4 bytes)
            buffer[4] = 0x08; // sectPerAlloc = 8
            buffer[8] = 0x00;
            buffer[9] = 0x10; // alloc = 4096
            buffer[12] = 0x00;
            buffer[13] = 0x08; // free = 2048
            buffer[16] = 0x00;
            buffer[17] = 0x02; // bytesPerSect = 512

        context.initSecContext(new byte[0], 0, 0);

        // Create a mock Type 2 message (server challenge)
        byte[] serverChallenge = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
        int type2Flags = NtlmFlags.NTLMSSP_NEGOTIATE_NTLM | NtlmFlags.NTLMSSP_REQUEST_TARGET | NtlmFlags.NTLMSSP_NEGOTIATE_KEY_EXCH
                | NtlmFlags.NTLMSSP_NEGOTIATE_SIGN;

            byte[] buffer2 = createValidOplockBreakBuffer((byte) 0x08, fileId2);
            notification.readBytesWireFormat(buffer2, 0);

            // Verify second read overwrote first read values
            Field oplockLevelField = Smb2OplockBreakNotification.class.getDeclaredField("oplockLevel");
            oplockLevelField.setAccessible(true);
            assertEquals((byte) 0x08, oplockLevelField.get(notification));

        server.encryptedPasswords = (server.securityMode & 0x02) == 0x02;
        server.signaturesEnabled = (server.securityMode & 0x04) == 0x04;
        server.signaturesRequired = (server.securityMode & 0x08) == 0x08;
        server.maxMpxCount = readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        server.maxNumberVcs = readInt2(buffer, bufferIndex);
        bufferIndex += 2;

        if (byte2 > (byte) 0xBF
            // Overlong? 5 most significant bits must not all be zero.
            || (byte1 == (byte) 0xE0 && byte2 < (byte) 0xA0)
            // Check for illegal surrogate codepoints.
            || (byte1 == (byte) 0xED && byte2 >= (byte) 0xA0)
            // Third byte trailing-byte test.
            || bytes[index++] > (byte) 0xBF) {
          return false;
        }

    /**
     * Receive buffer has been posted flag.
     */
    int FLAGS_RECEIVE_BUFFER_POSTED = 0x02;
    /**
     * Path names are case-insensitive flag.
     */
    int FLAGS_PATH_NAMES_CASELESS = 0x08;
    /**
     * Path names are canonicalized flag.
     */
    int FLAGS_PATH_NAMES_CANONICALIZED = 0x10;
    /**
     * Opportunistic lock requested or granted flag.
     */

                ownerNodeType = (src[srcIndex + 16] & 0x60) >> 5;
                isBeingDeleted = ((src[srcIndex + 16] & 0x10) == 0x10) == true;
                isInConflict = ((src[srcIndex + 16] & 0x08) == 0x08) == true;
                isActive = ((src[srcIndex + 16] & 0x04) == 0x04) == true;
                isPermanent = ((src[srcIndex + 16] & 0x02) == 0x02) == true;

		return
	}
	// write "Prefix"
	err = en.Append(0xa6, 0x50, 0x72, 0x65, 0x66, 0x69, 0x78)
	if err != nil {
		return
	}
	err = en.WriteString(z.Prefix)
	if err != nil {
		err = msgp.WrapError(err, "Prefix")
		return
	}
	// write "FilterPrefix"
	err = en.Append(0xac, 0x46, 0x69, 0x6c, 0x74, 0x65, 0x72, 0x50, 0x72, 0x65, 0x66, 0x69, 0x78)
	if err != nil {
		return
	}
	err = en.WriteString(z.FilterPrefix)