HP OpenVMS Systems

Assuming personas? ($creprc and usernames)

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The Question is:

 
Is it possible to use the $CREPRC system service to create a process to run
under a different username?   I know that I can use SUBMIT/USER to submit a
batch job under another users name provided I have CMKRNL privilege.  How
could I do this using $CREPRC
 
 
Basically I have a client/server type of application that I needs to start
processes on behalf of the user (after they successfully enter their
password).  I need someway of doing this using $CREPRC with my app either
validating their password against the
 SYSUAF or somehow passing their password along to $CREPRC.
 

The Answer is :

 
  Prior to OpenVMS V6.2, the supported mechanisms for creating a process
  running under a UIC context other than the process creator included the
  DCL RUN/UIC (process) command, the $CREPRC system service with the UIC
  argument specified, DECnet task-to-task, and SUBMIT/USER.  The latter
  two mechanisms are two of the few (supported) mechanisms that allow the
  specification of the target username -- most other mechanisms alter the
  process UIC.
 
  As of OpenVMS V6.2, you can use the $PERSONA* system services to take
  on the persona of another user -- in a controlled fashion.  While the
  process is operatign under the target persona, a $CREPRC call will
  create new processes under the username of the assumed persona.  The
  general steps are:
 
	$PERSONA_CREATE	of target user
	$PERSONA_ASSUME target user
	$CREPRC
	$PERSONA_ASSUME revert to original
	$PRESONA_DELETE clean up
 
  For details on these systems services, please see the OpenVMS System
  Services Reference Manual for details (V7.1 and later).  Prior to this
  release, see the V6.2 New Features Manual for details on these calls.
 
  For information on DECnet task-to-task, see previous discussions here,
  as well as the DECnet manuals in the OpenVMS documentation set.
 
  There are several software packages available from various sources that
  could be of interest, including WHEEL and CEREBUS (if memory serves).
  See what DECUS (http://www.decus.org/) has to offer in this area.
 

  

     

     
answer written or last revised on ( 2-SEP-1998 )
     
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