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公开(公告)号:US6122631A
公开(公告)日:2000-09-19
申请号:US825303
申请日:1997-03-28
申请人: Robert R. Berbec , John L. Brady , James M. Caffrey , Joanne T. Crimi , Arthur P. Fenaroli , Matthew C. Iatridis , Gary S. Puchkoff , Roberto J. Sanchez , Madeline R. Whalen , Joseph A. Williams
发明人: Robert R. Berbec , John L. Brady , James M. Caffrey , Joanne T. Crimi , Arthur P. Fenaroli , Matthew C. Iatridis , Gary S. Puchkoff , Roberto J. Sanchez , Madeline R. Whalen , Joseph A. Williams
CPC分类号: G06F21/6218 , G06F9/52 , Y10S707/99939
摘要: A method and apparatus for providing dynamically controlling access to files in a client/server system. A client wanting access to a file first requests a token from an object server. The object server generates the token as a function of the file name and ephemeral information and provides the token to both the client and the file system. Upon receiving the token from the object server, the client presents an access request to the file system, using the token rather than the file name as an identifier. The file system compares the received identifier with the file names in the specified directory as well as with a list of valid tokens that it maintains. If the identifier corresponds to a valid token for a file in the directory, the access request is granted. Otherwise, the access request is denied. The procedure is transparent to the client, which uses the token in the same manner as it would use a regular file name.
摘要翻译: 一种用于提供动态地控制对客户机/服务器系统中的文件的访问的方法和装置。 想要访问文件的客户端首先从对象服务器请求一个令牌。 对象服务器根据文件名和临时信息生成令牌,并将令牌提供给客户端和文件系统。 在从对象服务器接收到令牌时,客户机使用令牌而不是文件名作为标识符向文件系统呈现访问请求。 文件系统将接收到的标识符与指定目录中的文件名以及其维护的有效令牌的列表进行比较。 如果标识符对应于目录中的文件的有效令牌,则授予访问请求。 否则访问请求被拒绝。 该过程对客户端是透明的,客户端以与使用常规文件名相同的方式使用令牌。