PM32394: CEXTECL ON A MVCL WHEN CEX TRACE IS ACTIVE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• - IMS V12 added new event records, IMS Connect type 1 commands,
  and IMS Connect configuration member keywords.
  - An ABEND0C4 can occur when the CEX trace is active and the
    amount of data to trace is 2 bytes or less than the CEX trace
    buffer. The abend occurs in module CEXTECL.
  - If the ISPF session has underscore turned off for input
    fields, the Operations System view panel and associated help
  - A loop in module CEXEXRTR can occur in an IMS Connect V910
    system when using routing.
  - Characters in column 72 of BPECFG member can result in
    following keywords - values being ignored.
  - In the ISPF definition dialog, using the "S defname" command
    on the definition list command line to select a definition
    for edit causes incorrect definition description to be used.
    can be confusing because two fields appear to be a single
    field.
  - Provide a new security feature when CEX is providing security
    for IMS Connect. This feature allows securing access to the
    IMS Connect region based upon the IP address of the remote
    client.
  - The CEX batch command utility does not support refreshing the
    security rules used for CEX security.
  - If Advanced Function is active, but event collection is
    inactive, CEX security checking is not performed for IMS
    Connect message exit HWSJAVA0.
  Additional symptoms:
  FUN2211I Syntax error at line 101: the input MSC is not a known
  command
  FUN2211I Syntax error at line 122: the input RMTIMSCON is not a
  known command
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IMS Connect Extentions V2.2         *
  ****************************************************************
  * PROBLEM DESCRIPTION: Abend 0C4 in HWS Port task in module    *
  *                      CEXTECL doing MVCL instruction.         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  This APAR is addressing the following:
  1. Abend 0C4 in HWS Port task in module CEXTECL doing MVCL
  instruction.
  2. If the ISPF session has underscore turned off for input
  fields, the Operations System view panel and associated help
  can be confusing because two fields appear to be a single
  field.
  3. Provide a new security feature when CEX is providing
  security for IMS Connect. This feature allows securing
  access to the IMS Connect region based upon the IP address
  of the remote client.
  4. If Advanced Function is active, but event collection is
  inactive CEX security checking is not performed for IMS Connect
  message exit HWSJAVA0.
  5. Provide support for the new event records in IMS V12.
  6. An 0C4 can occur in module CEXTECL when the CEX trace is
  active and the output message returned by the message exit XMIT
  routine is 2 bytes or less than the size of the trace buffer.
  7. A loop in module CEXEXRTR can occur in a V910 IMS Connect
  system when using routing.
  8. Characters in column 72 of BPECFG member can result in
  following keywords/values being ignored.
  9. In the ISPF definitions dialog, using the "S defname"
  command on the definition list command line to select a
  definition for edit causes incorrect definition description
  to be used.
  

Problem conclusion

• 1. An abend 0C4 can occur in CEXTECL when CEX tracing is active
  and the inbound message is exactly the length of the trace
  buffer. The amount of trace buffer calculation is incorrect
  causing the MVCL length to go negative and this results in
  a storage overlay and likely 0C4.
  2. Change the design of the Operations Systems panel to make
  it clearer that these are two input fields instead of one
  when underscore is turned off for input fields.
  3. Provide the ability to setup RACF or other security system
  profiles that protect IPV4 or IPV6 IP addresses a remote
  client might use to gain access to the IMS Connect system.
  CEX will verify that the UID associated with the input
  transaction is authorized to use the IMS Connect system
  based upon it's input IP address.
  4. Changed module CEXTECL to provide the information necessary
  for security checking for message exit HWSJAVA0 event if CEX
  event collection is inactive.
  5. Support is added for the new event IMS Connect event records
  provided in IMS V12. This is early support and limited to the
  new event records.
  6. Corrected the CEXTECL MSGTRC routine to detect the condition
  where the output message is within 2 bytes of the length of the
  trace buffer and prevent the abend
  7. The V910 XIB is much different than the V10 or later XIB and
  CEX was not properly determining that the execution version was
  V910 and this caused a loop trying to check the status of
  datastores. A change has been made to properly detect a
  V910 system and use the proper XIB definitions for status
  checking.
  8. Changed parser to correctly handle characters in column 72
  of the BPECFG member.
  9. Changed ISPF dialog to use the correct definition
  description when "S defname" used on the definition list
  command line to select a definition for editing.
  

Temporary fix

Comments

APAR Information

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

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

  UK65339

Modules/Macros

• CEX##SEC CEX#MPAV CEX#MPIV CEX#MPSC CEX#OPSX
  CEX#TXTE CEXACLR1 CEXACL10 CEXBDDSG CEXBDSI0 CEXBDSI1 CEXBPSR
  CEXCERE  CEXCMDT  CEXCOMM  CEXCONS  CEXCONSC CEXCRPF  CEXCR62
  CEXCTPB  CEXCVDB  CEXDFDRV CEXEVTPR CEXEVT01 CEXEXRTR CEXLGDRV
  CEXMAIN  CEXMPDEP CEXMPSCP CEXMSGCM CEXMSGL  CEXMSGT  CEXOPDRV
  CEXOPSVP CEXOPSV2 CEXOPSYP CEXOPSY1 CEXPRSR  CEXPUDRV CEXR113
  CEXR114  CEXR115  CEXR116  CEXR117  CEXR118  CEXR119  CEXR120
  CEXR121  CEXR122  CEXR123  CEXR124  CEXR163  CEXSHELL CEXSVC01
  CEXTECL  CEXTRDEP CEXVUSER
  

Fix information

• Fixed component name

  IMS CONNECT EXT

• Fixed component ID

  5655K4800

Applicable component levels

• R220 PSY UK65339

     UP11/03/04 P F103

Fix is available

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