int CAP_RAW_MODE = 0x0001;
    /**
     * Multiplex mode is supported capability.
     */
    int CAP_MPX_MODE = 0x0002;
    /**
     * Unicode strings are supported capability.
     */
    int CAP_UNICODE = 0x0004;
    /**
     * Large files are supported capability.
     */
    int CAP_LARGE_FILES = 0x0008;
    /**
     * NT SMBs are supported capability.
     */
    int CAP_NT_SMBS = 0x0010;

    int NT_STATUS_ACCESS_VIOLATION = 0xC0000005;
    /** The handle is invalid */
    int NT_STATUS_INVALID_HANDLE = 0xC0000008;
    /** The parameter is incorrect */
    int NT_STATUS_INVALID_PARAMETER = 0xC000000d;
    /** The system cannot find the device specified */
    int NT_STATUS_NO_SUCH_DEVICE = 0xC000000e;
    /** The system cannot find the file specified */
    int NT_STATUS_NO_SUCH_FILE = 0xC000000f;

    private int minVersion;
    private int maxVersion;
    private int negotiatedVersion;
    private int reserved = 0;
    private int creditsGranted;
    private int creditsRequested;
    private int status = STATUS_SUCCESS;
    private int maxReadWriteSize;
    private int preferredSendSize;
    private int maxReceiveSize;
    private int maxFragmentedSize;

    /**
     * Create SMB Direct Negotiate Response
     */

    private static final Logger log = LoggerFactory.getLogger(Smb2NegotiateResponse.class);

    private int securityMode;
    private int dialectRevision;
    private final byte[] serverGuid = new byte[16];
    private int capabilities;
    private int commonCapabilities;
    private int maxTransactSize;
    private int maxReadSize;
    private int maxWriteSize;
    private long systemTime;
    private long serverStartTime;

     */
    public static final int OVERHEAD = Smb2Constants.SMB2_HEADER_LENGTH + 48;

    private byte[] data;
    private int dataOffset;
    private int dataLength;

    private byte[] fileId;
    private long offset;
    private int channel;
    private int remainingBytes;
    private int writeFlags;
    private RdmaChannelInfo rdmaChannelInfo;

    /**

        // Given - large buffer with many notifications
        byte[] buffer = new byte[65536];
        int offset = 0;

        setHeaderStart(response, 64);

        // Calculate space for notifications
        int notificationSize = 32; // Each notification
        int notificationCount = 100;
        int totalSize = notificationSize * notificationCount;

        // Write structure

    public static final int CHANNEL_BINDING_REQUIRED = 2;

    /**
     * Default maximum number of channels per session
     */
    public static final int DEFAULT_MAX_CHANNELS = 4;

    /**
     * Absolute maximum number of channels supported
     */
    public static final int ABSOLUTE_MAX_CHANNELS = 32;

    /**
     * Network interface capability flag for RSS support
     */

    private int token; // 4 bytes: RDMA provider token
    private int length; // 4 bytes: Length of buffer

    /**
     * Create SMB2 RDMA Transform
     *
     * @param offset offset within registered buffer
     * @param token RDMA provider token (steering tag/memory handle)
     * @param length length of buffer
     */
    public Smb2RdmaTransform(long offset, int token, int length) {

    /**
     * Directory lease flag for recursive caching
     */
    public static final int DIRECTORY_LEASE_FLAG_RECURSIVE = 0x00000001;

    /**
     * Directory lease flag for enabling notifications
     */
    public static final int DIRECTORY_LEASE_FLAG_NOTIFICATIONS = 0x00000002;

    private Smb2LeaseKey leaseKey;
    private int leaseState;
    private DirectoryCacheScope cacheScope;
    private long maxCacheAge;

	type Toy struct {
		ID        int
		Name      string
		OwnerID   int
		OwnerType string
	}
	type User struct {
		ID  int
		Cat struct {
			Name string
			Toy  Toy   `gorm:"polymorphic:Owner;"`
			Toys []Toy `gorm:"polymorphic:Owner;"`
		} `gorm:"embedded;embeddedPrefix:cat_"`
		Dog struct {
			ID     int
			Name   string
			UserID int
			Toy    Toy   `gorm:"polymorphic:Owner;"`