SecurityDescriptor querySecurity ( SmbTreeHandleImpl th, int types ) throws CIFSException {
        if ( th.isSMB2() ) {
            Smb2QueryInfoRequest req = new Smb2QueryInfoRequest(th.getConfig());
            req.setInfoType(Smb2Constants.SMB2_0_INFO_SECURITY);
            req.setAdditionalInformation(types);
            Smb2QueryInfoResponse resp = withOpen(
                th,
                Smb2CreateRequest.FILE_OPEN,