Method and system applying policy on screened files

Details Method and system applying policy on screened files Method and system applying policy on screened files

2004-11-30

2009-10-06

Pham, Hung Q (Department: 2159)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

07599907

ABSTRACT:
Described is a mechanism comprising a data screening filter and user mode service that applies (enforces) policies regarding allowing or blocking file content of a directory, based on matching the filename against patterns associated with that directory. An administrator configures a screening policy, such as the types of files to allow in a particular directory and the types of files to block. File groups of member patterns and non-member exclusion patterns are defined and selectively collected in directory screening objects (DSOs). A directory screening object (DSO) is associated with a directory. When an I/O create request specifying a filename and a target directory is received, the filename is evaluated against the member
on-member patterns in the file groups referenced by the DSO for that directory to make for an allow or block policy decision. If not matched, DSOs on parent directories are evaluated upwards seeking a policy decision.

REFERENCES:
patent: 7188127 (2007-03-01), Stakutis et al.
patent: 2003/0009484 (2003-01-01), Hamanaka et al.

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