System.Security.AccessControl.FileSystemSecurity.AddAccessRule C# (CSharp) Method

        public void AddAccessRule(System.Security.AccessControl.FileSystemAccessRule rule) { }
        public void AddAuditRule(System.Security.AccessControl.FileSystemAuditRule rule) { }

        DokanError IDokanOperations.GetFileSecurity(string filename, out FileSystemSecurity security,
            AccessControlSections sections, DokanFileInfo info)
        {
            //Log("GetSecurrityInfo:{0}:{1}", filename, sections);
            LogFSActionInit("GetFileSecurity", filename, (SftpContext)info.Context, "Sections:{0}",sections);

            var sftpattributes = (info.Context as SftpContext).Attributes;
            var rights = FileSystemRights.ReadPermissions | FileSystemRights.ReadExtendedAttributes |
                         FileSystemRights.ReadAttributes | FileSystemRights.Synchronize;

            if (UserCanRead(sftpattributes))
            {
                rights |= FileSystemRights.ReadData;
            }
            if (UserCanWrite(sftpattributes))
            {
                rights |= FileSystemRights.Write;
            }
            if (UserCanExecute(sftpattributes) && info.IsDirectory)
            {
                rights |= FileSystemRights.Traverse;
            }
            security = info.IsDirectory ? new DirectorySecurity() as FileSystemSecurity : new FileSecurity();
            // if(sections.HasFlag(AccessControlSections.Access))
            security.AddAccessRule(new FileSystemAccessRule("Everyone", rights, AccessControlType.Allow));
            security.AddAccessRule(new FileSystemAccessRule("Everyone", FileSystemRights.FullControl ^ rights,
                                                            AccessControlType.Deny));
            //not sure this works at all, needs testing
            // if (sections.HasFlag(AccessControlSections.Owner))
            security.SetOwner(new NTAccount("None"));
            // if (sections.HasFlag(AccessControlSections.Group))
            security.SetGroup(new NTAccount("None"));

            LogFSActionSuccess("GetFileSecurity", filename, (SftpContext)info.Context, "Sections:{0} Rights:{1}", sections, rights);
            return DokanError.ErrorSuccess;
        }