File virtualization implementation method and apparatus

A technology of virtualization and real files, which is applied in the field of file virtualization, and can solve problems such as difficult expansion and insufficient stability of file virtualization

CN105701409AActive Publication Date: 2016-06-22ZHUHAI BAOQU TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-06-22

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Abstract

Embodiments of the present invention disclose a file virtualization implementation method and apparatus, which are capable of solving the problem that the existing file virtualization is not stable enough and is not easy to be extended and efficiently implementing file virtualization. The method comprises: registering with a filtration manager, and attaching to a file system stack of a target volume by means of the filtration manager; registering a pre-constructed call back function with the filtration manager, wherein the callback function is used for responding to a call of the filtration manager and acquiring a file path corresponding to a to-be-opened file; and according to a pre-established mapping relationship, modifying the file path in the callback function into a target path, and modifying a return value in the callback function into a redirection state value and then returning the redirection state value, so as to enable the filtration manager to read the target path, and returning the target path to an operating system, so as to enable the operating system to open the file according to the target path. The apparatus comprises a module used for executing the method. The method and apparatus disclosed by the present invention are applicable to security protection of files.
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Description

technical field

[0001] The invention relates to the technical field of file security, in particular to a method and device for realizing file virtualization. Background technique

[0002] With the development of the computer Internet, people's information exchange, file dissemination, and virus dissemination will prevail on the Internet, and there will be many security problems, so file protection is particularly important in information security.

[0003] File virtualization is a technical means of file protection. Some existing software, such as Vientiane system used in commercial Internet cafes, and Yugutianqing software can protect files through file virtualization. For example, when using a computer in an Internet cafe, no matter any modification to the computer files, it will be restored to the original state after restarting, thereby realizing the protection of the files.

[0004] However, the existing software that protects files through file virtualization is base...

Examples

Embodiment Construction

[0038] A method and device for realizing file virtualization according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0040] The core function of the file security protection system is at the kernel layer, which is realized through the file system filter driver. The file system filter driver constructs an additional device object on the storage device of the file system, and preprocesses the operation requests sent to the target volume in the filter driver, so as to control file access and protect file security.

[0041] Minifilter is a new, stable, and easy-to-exten...