PM77123: AFTER APAR PM48449 / PTF UK75776, APPLICATION AIB CALL UNEXPECTEDLY RECEIVES AIB RC104 RSN228.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After installing APAR PM48449 / PTF UK75776, if field AIBLEN
  is set to zero when an application AIB call is processed,
  an AIB return code of 104 / AIB reason code 228 is
  unexpectedly returned to the application program.
  This is causing legacy user applications, which have always
  passed a zero AIBLEN value with success, to now fail.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS V11 users with applications that     *
  *                 make AIB calls and who have                  *
  *                 PM48449 / PTF UK75776 installed.             *
  ****************************************************************
  * PROBLEM DESCRIPTION: Application AIB call receives AIB       *
  *                      return code 104 and reason code 228     *
  *                      when AIBLEN is set to zero.             *
  ****************************************************************
  * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
  ****************************************************************
  Apar pm48449 (PTF UK75776) added code to module DFSLIE20 to
  check whether the value in AIBLEN is zero during application AIB
  call processing.  If it is, the call fails with a AIB return
  code of 104 and reason code of 228.  The behavior prior to
  pm48449 is to allow the call to proceed, possibly resulting in a
  u0200 abend later in the flow.  Some legacy user applications
  may fail because they expect the call to be accepted in this
  situation, and not to see these AIB return and reason codes.
  

Problem conclusion

• GEN:
  KEYWORDS:
  
  *** END IMS KEYWORDS ***
  The check for AIBLEN of zero is removed from DFSLIE20.  This
  checking is instead done in DFSCPY00.  This prevents the check
  from being applied in situations in which it is not needed and
  in which some customer applications expect the call to be
  accepted.
  
  The new check is added to DFSCPY00 just prior to the code that
  copies the user's AIB to key 7 storage.  If AIBLEN is zero, the
  minimum AIB length of 128 bytes is used.  This value is placed
  in the AIBLEN field of both the key 7 and key 8 AIBs.  The
  request is otherwise processed normally instead of being
  rejected.  The check in DFSCPY00 prevents problems that may
  result from performing this copy when AIBLEN is zero.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PM77121

• APAR is sysrouted TO one or more of the following:

  PM77127 UK91206

Modules/Macros

•    DFSCPY00 DFSLIE20
  

Fix information

• Fixed component name

  IMS V11

• Fixed component ID

  5635A0200

Applicable component levels

• R100 PSY UK91206

     UP13/02/07 P F302

Fix is available

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