Right, I meant the *client* needs to make some decisions based on the environment. I know the STC can't trust the client.
On Sat, Dec 28, 2013 at 4:09 PM, Binyamin Dissen <bdis...@dissensoftware.com > wrote: > I don't know why you are checking the key on the client side, but your PC > routine cannot really count on the filtering by the client side - if it > will > be setting a client passed protected storage location or accessing > something > that the client could not directly access it will need to validate the > callers > key itself. > > On Sat, 28 Dec 2013 15:35:33 -0500 zMan <zedgarhoo...@gmail.com> wrote: > > :>This is the client side of an API which is going to do a PC to a started > :>task. It can be called from "plain" code, or on occasion from a DB2 user > :>exit. I want to know if it's a user exit, hence I'm testing the key. If > :>"non-system key" is the real answer, then yeah, the IPK approach looks a > :>bit better. > :> > :> > :>On Sat, Dec 28, 2013 at 12:03 PM, Binyamin Dissen < > :>bdis...@dissensoftware.com> wrote: > :> > :>> On Fri, 27 Dec 2013 18:31:17 -0500 zMan <zedgarhoo...@gmail.com> > wrote: > :>> > :>> :>Is there a simpler way to see whether we were called in key 8 (not > that > :>> :>this is that complicated): > :>> > :>> :> EPSW R14,R0 Extract PSW > :>> :> SLL R14,8 Get key bits in left-most nibble > :>> :> SRL R14,28 Now isolate in bottom nibble > :>> :> CFI R14,8 Are we in key 8?? > :>> > :>> What is being called? PC? SVC? Simple subroutine? > > -- > Binyamin Dissen <bdis...@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. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- zMan -- "I've got a mainframe and I'm not afraid to use it" ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
