IT18052: ChlauthEarlyAdopt modifications

APAR status

• Closed as program error.

Error description

• The ChlauthEarlyAdopt attribute was introduced under APAR
  IT12825 to allow
  a supplied user identifier to be adopted earlier in the process
  of channel
  negotiation.
  
  This APAR will make a number of changes to this functionality
  across the IBM
  MQ v8 and v9 releases.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of the ChlauthEarlyAdopt qm.ini parameter that was
  introduced by APAR IT12825
  may be affected by this change.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A new qm.ini parameter ChlauthEarlyAdopt was added to IBM MQ
  under APAR IT12825.
  This parameter ensures that when ADOPTCTX(YES) is used on the
  default authentication
  information object then USERMAP channel authentication rules are
  honored.
  
  This APAR addresses a number of issues with the
  ChlauthEarlyAdopt functionality:
  
  IBM MQ v8: It is not necessary to have two settings 'E' and 'Y'
  for ChlauthEarlyAdopt.
  
  IBM MQ v9 LTS: The functionality for ChlauthEarlyAdopt 'E' was
  missing from this release and
  so if security exits were enabled then applications may fail to
  connect to the
  queue manager.
  
  IBM MQ v9 LTS/CD:  ChlauthEarlyAdopt 'E' was not recognised as a
  valid option, therefore users
  with security exits who migrated to the IBM MQ v9 LTS or CD
  release and who used the
  ChlauthEarlyAdopt 'E' option in IBM MQ v8 may be unable to
  connect to the queue manager.
  

Problem conclusion

• The IBM MQ v8/v9 LTS and v9 CD releases will be modified to
  correct the issues listed in this APAR:
  
  IBM MQ v8: The ChlauthEarlyAdopt option 'Y' is made functionally
  equivalent to option 'E'.
  
  IBM MQ v9 LTS: ChlauthEarlyAdopt 'E' functionality is added so
  that security exits can be
  used with ChlauthEarlyAdopt.  The ChlauthEarlyAdopt option 'Y'
  is made functionally
  equivalent to option 'E'.
  
  IBM MQ v9 LTS/CD: To aid with migration from IBM MQ v8 where
  ChlauthEarlyAdopt may have been
  set to 'E', the product will be changed to allow 'E' to be used
  as a synonym for 'Y'.
  
  The net effect across IBM MQ v8, v9 LTS and v9 CD, is that
  ChlauthEarlyAdopt 'Y' will become functionally equivalent to 'E'
  and that either option may be specified in qm.ini.
  
  The documentation will be updated to reflect the changes in this
  APAR and APAR IT12825 will be updated
  to reference this APAR.  In particular, mention of option 'E'
  will be removed from the documentation in order to limit
  confusion.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v8.0       8.0.0.7
  v9.0 CD    9.0.2
  v9.0 LTS   9.0.0.1
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

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:

Fix information

• Fixed component name

  WMQ BASE MULTIP

• Fixed component ID

  5724H7251

Applicable component levels

• R800 PSY

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