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Article #314Re: Authorizing Address Space
From: Binyamin Dissen
Date: Mon, 05 Sep 2005 16:12
Date: Mon, 05 Sep 2005 16:12
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On Mon, 5 Sep 2005 11:45:48 -0400 "Edward E. Jaffe" <edjaffe@phoenixsoftware.com> wrote: :>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, If running as an SVC/PC, why? What can they do? :> establishing appropriate error recovery, protecting :>against unexpected usage of the SVC/PC routine, etc. -- Binyamin Dissen <bdissen@dissensoftware.com> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies.
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From: Binyamin Dissen <bdissen@dissensoftware.com>
Newsgroups: bit.listserv.asm370
Subject: Re: Authorizing Address Space
Date: Mon, 5 Sep 2005 19:12:39 +0300
Organization: DISSEN Software, Bar & Grill - Israel Ltd.
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