There's nothing wrong with teaching someone how to turn on JSCBAUTH from code that is already supervisor mode or key 0-7.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Steve Beaver <0000050e0c375a14-dmarc-requ...@listserv.ua.edu> Sent: Monday, November 18, 2024 5:12 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Program Authorization: Unauthorized programs calling Authorized External Message: Use Caution Seymour I didn’t disagree however teaching anyone how to turn on the JSCBAUTH bit is stupid Sent from my iPhone No one said I could type with one thumb > On Nov 18, 2024, at 15:51, Seymour J Metz <sme...@gmu.edu> wrote: > > AC(1) is only relevant when an authorized program does an ATTACH RSAPF=YES. > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > עַם יִשְׂרָאֵל חַי > נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר > > > > ________________________________________ > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of > Richard Zierdt <richard.zie...@freschesolutions.com> > Sent: Monday, November 18, 2024 12:02 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Program Authorization: Unauthorized programs calling Authorized > > External Message: Use Caution > > > I wrote an authorized program that displays the contents of control registers > using the STCTG instruction. Linked AC(1) and stored in an APF library. > Substantive instructions are: > > MODESET MODE=SUP For STCTG instruction > STCTG 0,15,CRREGS Store (copy) Control Registers > MODESET MODE=PROB > > When called using LINK from an unauthorized program (linked AC(0) to the same > APF authorized library), an S047 abend occurs at the first MODESET macro > (which generates an SVC 107). > > When the unauthorized program is linked authorized (AC(1)), the call (LINK) > works. > > I thought unauthorized programs can call (LINK) authorized programs, but > authorized programs cannot call unauthorized programs, or, if they do, they > lose authorization. > > Yes, the program with MODESET MODE=SUP could be made into a PC, but it would > be easier to avoid that method. > > Any elucidation appreciated — Thanks > Richard Zierdt > > Confidentiality Warning/Avertissement de confidentialité: > > This message is intended only for the named recipients. This message may > contain information that is privileged or confidential. If you are not the > named recipient, its employee or its agent, please notify us immediately and > permanently destroy this message and any copies you may have. Ce message est > destiné uniquement aux destinataires dûment nommés. Il peut contenir de > l'information privilégiée ou confidentielle. Si vous n'êtes pas le > destinataire dûment nommé, son employé ou son mandataire, veuillez nous > aviser sans tarder et supprimer ce message ainsi que toute copie qui peut en > avoir été faite. > > ---------------------------------------------------------------------- > For IB ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
