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Article #312Re: Authorizing Address Space
From: Edward E. Jaffe
Date: Mon, 05 Sep 2005 15:45
Date: Mon, 05 Sep 2005 15:45
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2727 bytes
Paul V DAngelo wrote: >If the product does not allow An apf Authoried service to be used the >installation needs to build there own environment, hence an Authorizing SVC. > > A "generic" authorizing SVC/PC is a bad idea. Proper procedure is to encapsulate the authorized function(s) within the SVC/PC routine itself. Even then, there are serious considerations when running authorized code within an otherwise unauthorized address space: exhaustive parameter validation, using protected (key 0-7) storage only, making the other TCBs in the address space (still running unauthorized code) non-dispatchable, establishing appropriate error recovery, protecting against unexpected usage of the SVC/PC routine, etc. -- .-----------------------------------------------------------------. | Edward E. Jaffe | | | Mgr, Research & Development | edjaffe@phoenixsoftware.com | | Phoenix Software International | Tel: (310) 338-0400 x318 | | 5200 W Century Blvd, Suite 800 | Fax: (310) 338-0801 | | Los Angeles, CA 90045 | http://www.phoenixsoftware.com | '-----------------------------------------------------------------'
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From: "Edward E. Jaffe" <edjaffe@phoenixsoftware.com>
Newsgroups: bit.listserv.asm370
Subject: Re: Authorizing Address Space
Date: Mon, 5 Sep 2005 11:45:48 -0400
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