Check out CBT file 165 (www.cbttape.org). Craig Yasuna wrote a functional ESM 
that shows you how to handle the SAF calls and returns.

Regards,
Michael Joseph
Sr. Systems Engineer
Blue Hill Data Services | Fully Managed Data Center Hosting Solutions  

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Charles Mills
Sent: Wednesday, May 4, 2022 1:21 PM
To: [email protected]
Subject: Re: SAF without an ESM

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My impression is that it does whatever you want it to do! That is, it either 
permits everything, or you get to write your own rules; write your own ESM, 
essentially. You need to write the part that SAF calls, and of course you also 
need to come up with some sort of administration, some way to configure what 
you have written.

Charles


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of zMan
Sent: Wednesday, May 4, 2022 9:51 AM
To: [email protected]
Subject: SAF without an ESM

On https://www.ibm.com/docs/en/zos-basic-skills?topic=zos-what-is-saf , IBM
says:

> System authorization facility or SAF is an interface defined by MVS™ 
> that enables programs to use system authorization services to control 
> access to resources, such as data sets and MVS commands. SAF either 
> processes security authorization requests directly or works with 
> RACF®, or other security product, to process them.


Someone on r/mainframe asks what SAF does without an ESM. I'm thinking "not 
much", but the last sentence above sort of suggests otherwise--unless "SAF 
either processes security authorization requests directly" means "returns
RC=0 in all cases", in which case it would be accurate but IMHO overly vague. 
Thoughts?

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