public static final int ERR_SSN_SRVC = 0x02;

    // name service error codes
    public static final int FMT_ERR = 0x1;
    public static final int SRV_ERR = 0x2;
    public static final int IMP_ERR = 0x4;
    public static final int RFS_ERR = 0x5;
    public static final int ACT_ERR = 0x6;
    public static final int CFT_ERR = 0x7;

    // session service error codes
    public static final int CONNECTION_REFUSED    = -1; 

    /**
     * 
     */
    public static final int SMB2_SESSION_FLAGS_IS_NULL = 0x2;

    /**
     * 
     */
    public static final int SMB2_SESSION_FLAG_ENCRYPT_DATA = 0x4;

    private int sessionFlags;
    private byte[] blob;


    /**
     * @param config
     */
    public Smb2SessionSetupResponse ( Configuration config ) {
        super(config);
    }

    /**
     * 
     */
    public static final int GROUP_SECURITY_INFO = 0x2;

    /**
     * 
     */
    public static final int DACL_SECURITY_INFO = 0x4;

    /**
     * 
     */
    public static final int SACL_SECURITY_INFO = 0x8;

    /**
     * 
     */
    public static final int LABEL_SECURITY_INFO = 0x10;

    /**
     * 
     */

    public static final int ERR_SSN_SRVC = 0x02;

    // name service error codes
    public static final int FMT_ERR = 0x1;
    public static final int SRV_ERR = 0x2;
    public static final int IMP_ERR = 0x4;
    public static final int RFS_ERR = 0x5;
    public static final int ACT_ERR = 0x6;
    public static final int CFT_ERR = 0x7;

    // session service error codes
    public static final int CONNECTION_REFUSED = -1;

    /**
     * 
     */
    public static final int FILE_NOTIFY_CHANGE_DIR_NAME = 0x2;
    /**
     * 
     */
    public static final int FILE_NOTIFY_CHANGE_ATTRIBUTES = 0x4;
    /**
     * 
     */
    public static final int FILE_NOTIFY_CHANGE_SIZE = 0x8;
    /**
     * 
     */
    public static final int FILE_NOTIFY_CHANGE_LAST_WRITE = 0x10;
    /**
     * 
     */

	// check for omitted fields
	zb0001Len := uint32(3)
	var zb0001Mask uint8 /* 3 bits */
	_ = zb0001Mask
	if z.MetaSys == nil {
		zb0001Len--
		zb0001Mask |= 0x4
	}
	// variable map header, size zb0001Len
	err = en.Append(0x80 | uint8(zb0001Len))
	if err != nil {
		return
	}
	if zb0001Len == 0 {
		return
	}
	// write "ID"

    /**
     * 
     */
    public static final byte SMB2_RETURN_SINGLE_ENTRY = 0x2;

    /**
     * 
     */
    public static final byte SMB2_INDEX_SPECIFIED = 0x4;

    /**
     * 
     */
    public static final byte SMB2_REOPEN = 0x10;

    private byte fileInformationClass = FILE_BOTH_DIRECTORY_INFO;
    private byte queryFlags;
    private int fileIndex;

    /**
     * 
     */
    public static final int NT_TRANSACT_QUERY_SECURITY_DESC = 0x6;

    /**
     * 
     */
    public static final int NT_TRANSACT_NOTIFY_CHANGE = 0x4;

    private final int function;


    protected SmbComNtTransaction ( Configuration config, int function ) {
        super(config, SMB_COM_NT_TRANSACT, (byte) 0);
        this.function = function;

		header: []byte{0x28, 0xb5, 0x2f, 0xfd},
		f:      formatZstd,
	},
	{
		// Zstd skippable frame header.
		header: []byte{0x2a, 0x4d, 0x18},
		f:      formatZstd,
	},
	{
		// LZ4
		header: []byte{0x4, 0x22, 0x4d, 0x18},
		f:      formatLZ4,
	},
	{
		// Snappy/S2 stream
		header: []byte{0xff, 0x06, 0x00, 0x00},
		f:      formatS2,
	},
	{
		header: []byte{0x42, 0x5a, 'h'},
		f:      formatBZ2,
	},

     */

    static final int FILE_OPEN_IF      = 0x3;

    /* Open the file and overwrite it's contents or fail if it does not exist
     * aka TRUNCATE_EXISTING
     */

    static final int FILE_OVERWRITE    = 0x4;

    /* Open the file and overwrite it's contents or create it if it does not exist
     * aka CREATE_ALWAYS (according to the wire when calling CreateFile)
     */

    static final int FILE_OVERWRITE_IF = 0x5;