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Connection authorizer for controlling access to system resources

  • US 5,506,961 A
  • Filed: 10/17/1994
  • Issued: 04/09/1996
  • Est. Priority Date: 09/11/1992
  • Status: Expired due to Term
First Claim
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1. A method for communicating data, said method comprising the steps of:

  • requesting access to system resources via notification to a system authorizer, said access being requested by a first Input-Output Processor (IOP)Connection manager, said first connection manager residing on a first IOP, said first IOP being connected to a bus;

    sending an authorization token in response to said requesting step, said authorization token being sent from said system authorizer mechanism to a second IOP connection manager, said second IOP connection manager residing on a second IOP, said second IOP being connected to said bus, said authorization token being sent as part of a first message, said first message being transmitted on said bus;

    sending a copy of said authorization token from said system authorizer to said first IOP connection manager, said authorization token being sent as part of a second message, said second message being transmitted on said bus;

    requesting a connection with second IOP connection manager, said connection being requested by said first IOP connection manager via a third message, said third message comprising said copy of said token, said third message being transmitted via said bus;

    validating said copy of said authorization token, said copy of said authorization token being validated by said second IOP connection manager; and

    connecting said first and said second IOPs across said bus when said copy of said authorization token has been validated by said validating step and thereby permitting access to system resources.

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