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Process restriction within file system hierarchies

  • US 6,026,402 A
  • Filed: 01/07/1998
  • Issued: 02/15/2000
  • Est. Priority Date: 01/07/1998
  • Status: Expired due to Term
First Claim
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1. A method for restricting a process or set of processes to a subset of a host computer system'"'"'s file systems, comprising the steps of:

  • providing a host computer system within which multiple processes operate;

    each process having simultaneous access to multiple, discrete, hierarchically-organized file systems,permitting a privileged process, operating on behalf of a specially authorized user, to designate sub-hierarchies within one or more of the available file systems,changing the behavior of the host system such that for each such file system sub-hierarchy assigned to a process, the process is prevented from accessing or even addressing any file system objects outside the assigned sub-hierarchy in the respective file system, andchanging the behavior of the host system such that, after the assignment of such sub-hierarchies to a process, the restriction is also assigned to and enforced against any further process it subsequently creates.

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