Just curious

LOAD EP=TPUT
DELETE EP=TPUTT


Best Regards

Ituriel do Nascimento Neto
z/OS System Programmer






Em quinta-feira, 19 de junho de 2025 às 06:57:31 BRT, Joseph Reichman 
<[email protected]> escreveu: 





I'm aware this is not the way to do it

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________________________________
From: IBM Mainframe Discussion List <[email protected]> on behalf of 
Binyamin Dissen <[email protected]>
Sent: Thursday, June 19, 2025 5:43:06 AM
To: [email protected] <[email protected]>
Subject: Re: error in post logon exit IKJEFD3 878-18 from MSTJCL

>From a  brief look at your code it looks like you are trying to set up SVC
screening for SVC 93, but you are making a lot of assumptions about the TCB
structures and TCB lives. I personally do not know which TCBs will stay around
(other than the RCT).

Also, be aware that 93 is not only TPUT.

On Wed, 18 Jun 2025 23:23:12 -0400 Joseph Reichman
<[email protected]> wrote:

:>Ok Jon tell me where I made an error
:>
:>thanks
:>
:>
:>IKJEFLD3 CSECT
:>IKJEFLD3 AMODE 31
:>IKJEFLD3 RMODE ANY
:>        YREGS
:>XLNK    EQU  R14
:>AR0      EQU  0
:>AR1      EQU  1
:>AR2      EQU  2
:>AR3      EQU  3
:>AR4      EQU  4
:>AR5      EQU  5
:>AR6      EQU  6
:>AR7      EQU  7
:>AR8      EQU  8
:>AR9      EQU  9
:>AR10    EQU  10
:>AR11    EQU  11
:>AR12    EQU  12
:>AR13    EQU  13
:>AR14    EQU  14
:>AR15    EQU  15
:>        STM  R14,R12,12(R13)
:>        LR    R3,R15
:>        USING IKJEFLD3,R3
:>        LA    R0,WS_LEN
:>        LR    R11,R1
:>        USING PARMLIST,R11
:>        STORAGE OBTAIN,LENGTH=(0),ADDR=(R12),SP=0
:>        LR    R14,R13
:>        LR    R13,R12
:>        ST    R14,4(R13)
:>d ===>                                                  Scroll ===> CSR
:>          USING WS_DSECT,R13
:>          L    R6,0(R11)
:>          USING PARMENT,R6
:>          XR    R2,R2
:> TSOIDLP  DS    0H
:>          CLC  PARMKEY,=F'0'
:>          BE    BUMP
:>          CLC  PARMKEY,=F'2'      FIRST ONE IS TSO ID
:>          BE    GETTSO
:> BUMP    DS    0H
:>          L    R2,PARMLEN
:>          LA    R6,8(R2,R6)
:>          B    TSOIDLP
:> GETTSO  DS    0H
:>          L    R2,PARMADR
:>          XR    R7,R7
:>          ICM  R7,B'0011',0(R2)  POINT TO TSO ID
:>          LA    R7,0(R7,R2)
:>          MVC  TSOID,0(R7)
:> *
:> *
:>          IPK  ,                  GET PSW PROTECT KEY
:>          ST    R2,STORKEY        SAVE PK IN R11
:>
:>          SPKA  0
:>          LOAD  EP=TPUT
:>          ICM  R1,B'1000',=X'00'
:>          LR    R10,R0
:>
:> *
:>          SLL  R1,3                LENGTH OF MODULE
:>          LR    R9,R1
:>
:>          USING PSA,0
:>          L    R2,PSATOLD
:>          USING TCB,R2
:>        L    R2,TCBJSTCB
:>*        L    R2,TCBBACK
:>*
:>        LA    R0,264
:>        STORAGE OBTAIN,LENGTH=(0),ADDR=(R5),BNDRY=DBLWD,SP=253,TCBADDRX
:>              =(R2)
:>        ST    R5,SP253
:>*
:>        STORAGE OBTAIN,LENGTH=(R9),ADDR=(R5),BNDRY=DBLWD,SP=253,LOC=24X
:>              ,TCBADDR=(R2)
:>        ST    R5,BELOW
:>        L    R4,SP253
:>        LA    R5,264
:>        XR    R14,R14
:>        LA    R14,=X'00'
:>        XR    R15,R15
:>        MVCL  R4,R14
:>*  *
:> *      MOVE CODE
:> *
:>          L    R4,BELOW
:>          LR    R5,R9
:>          LR    R14,R10
:>          LR    R15,R5
:>          MVCL  R4,R14
:> *
:>          L    R5,SP253
:> *
:>          DELETE EP=TPUTT
:> *
:>          L    R4,BELOW
:>          ST    R4,0(R5)
:> *
:>          MVI  4(R5),X'C0'
:>
:>*
:>          LA  R8,8(R5)
:> *
:>          LA  R1,256
:> INITLOOP DS  0H
:>          MVI  0(R8),X'80'        INITIALIZE TO DO NOT INTERCEPT
:>          LA    R8,1(,R8)          NEXT BYTE
:>          BCT  R1,INITLOOP        LOOP BACK
:> *
:>          LA  R8,8(R5)
:>          MVI  93(R8),X'00'
:> *
:> *
:>          ST    R5,TCBSVCA2        STORE SCREEN TABLE ADDRESS INTO TCB
:>          OI    TCBFLGS7,TCBSVCS+TCBSVCSP
:> *
:>          L    R10,STORKEY
:>          SPKA 0(R10)
:>*
:>        LA  R0,WS_LEN
:>        LR  R12,R13
:>        L    R13,4(,R13)
:>        STORAGE RELEASE,LENGTH=(0),ADDR=(R12),SP=0
:>        LM  R14,R12,12(R13)
:>        XR  R15,R15
:>        BR  R14
:>PARMENT  DSECT
:>PARMKEY  DS    F                        * PARAMETER KEY
:>PARMLEN  DS    F                        * PARAMETER LENGTH
:>PARMADR  DS    A                        * PARAMETER ADDRESS
:>        COPY DBGRLIT
:>WS_DSECT DSECT
:>        DS    18F
:>TSOID    DS    XL5
:>SP253    DS    F
:>BELOW    DS    F
:>STORKEY  DS    F
:>DBGRBUF  DS    XL(DIE_LEN)
:>WS_LEN  EQU  *-WS_DSECT
:>        DBGRPY
:>        IKJPTP
:>        IKJTCB DSECT=YES,LIST=NO
:>        IHARB
:>        IHAPSA
:>        CVT LIST=YES,DSECT=YES
:>        END
:>
:>
:>
:>
:>-----Original Message-----
:>From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Jon Perryman
:>Sent: Wednesday, June 18, 2025 9:33 PM
:>To: [email protected]
:>Subject: Re: error in post logon exit IKJEFD3 878-18 from MSTJCL
:>
:>On Wed, 18 Jun 2025 18:27:59 -0400, Joseph Reichman <[email protected]> 
wrote:
:>
:>>I copied the basic code from xephon
:>>
:>>In that code there was a storage obtain and release sp=0 local storage
:>
:>When you say "release sp=0", then you are saying free the entire subpool and 
ADDR= & LENGTH= were not specified on the STORAGE RELEASE. Because it was 
XEPHON, that ADDR= was specified.
:>
:>If you don't believe me about S0C4 suppression, then issue SLIP 
SET,ID=S0C4TEST,COMP=0C4,MATCHLIM=5,ACTION=NONE,END and it should only take a 
couple of minutes on an active system to trip 5 times but without a visible 
S0C4 abend.
:>
:>I'm telling you the STORAGE RELEASE has a bad address. Without more 
information, we can't be helpful. My recommendation is to set a SLIP 
COMP=878,ACTION=SVCD and look at the dump.
:>
:>Your code changed something incorrectly. IKJEFLD3 is an exit that is called 
by TSO and TSO did not like something your code changed. For us to help, 
providing source code is the only option left.
:>
:>----------------------------------------------------------------------
:>For IBM-MAIN subscribe / signoff / archive access instructions,
:>send email to [email protected] with the message: INFO IBM-MAIN
:>
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--
Binyamin Dissen <[email protected]>
http://www.dissensoftware.com

Director, Dissen Software, Bar & Grill - Israel


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