// relative to headerStart
    private static final int NTT_PRIMARY_SETUP_OFFSET       = 69;
    private static final int NTT_SECONDARY_PARAMETER_OFFSET  = 51;

    static final int NT_TRANSACT_QUERY_SECURITY_DESC = 6;

    int function;

    SmbComNtTransaction() {
        super();
        primarySetupOffset = NTT_PRIMARY_SETUP_OFFSET;
        secondaryParameterOffset = NTT_SECONDARY_PARAMETER_OFFSET;
    }

    private static final int NTT_PRIMARY_SETUP_OFFSET = 71;
    private static final int NTT_SECONDARY_PARAMETER_OFFSET = 51;

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

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

    private final int function;