Possible uses for IKJEFLD1 only

Some additional uses for IKJEFLD1 only are described below:

Execute privileged instructions, such as changing the PSW key, and perform authorized functions, such as issuing RACF® macros. For example, IKJEFLD1 can issue the RACINIT macro to perform RACF authority checking. IKJEFLD1 can then set the RACINIT control switch to prevent logon processing from issuing RACINIT.
Supply the first TSO/E command to be executed in the user's session. IKJEFLD1 can supply an 80-byte TSO/E command to be executed by the TMP at the beginning of the session. This function is intended for installations that provide their own full-screen logon panel. If IKJEFLD1 does not set the Don't Prompt bit and allows logon to display the full-screen logon panel, the first command is displayed on the panel and the user can modify or delete it. IKJEFLD1 must also set the First Command bit on.
For example, if IKJEFLD1 returned the MVSSERV command, an MVSSERV would begin when the user logged on to TSO/E, unless the user modified or deleted the MVSSERV command on the logon panel.
Supply SYSOUT and job classes for the PSCB. IKJEFLD1 can specify the following classes to be used in the session:
- Submit hold class
- Submit class
- Submit message class
- SYSOUT class
IKJEFLD1 must also set the appropriate control switch bits on. When IKJEFLD1 returns these job and SYSOUT classes, they are stored in the PSCB and remain in effect throughout the user's session.
Supply the RBA of the user's mail directory within the broadcast data set. IKJEFLD1 can return the RBA, rather than request logon processing to obtain it from the UADS or RACF. IKJEFLD1 must set the No UADS bit on, and must also set the RBA bit on. The RBA is also available at logoff if you code logoff exit IKJEFLD2.
Monitor how long the user's TSO/E session lasts.
You can use logon exit IKJEFLD1 and logoff exit IKJEFLD2 to monitor the approximate duration of the user's TSO/E session. When IKJEFLD1 receives control, it can:
- Invoke the TIME macro
- Use the exit-to-exit communication word to return the time to the LOGON command processor. The exit updates the Key, Length, and Data fields for the exit-to-exit communication word as follows:
  Key
  
  X'01'
  
  Length
  
  Length of the data (time)
  
  Data
  
  Data (time).
- Set a return code of 0 and return to the LOGON command processor.
When the logoff exit IKJEFLD2 gets control, it receives the time from IKJEFLD1 in the exit-to-exit communication word. Before IKJEFLD2 returns control to LOGOFF, it can invoke the TIME macro. The exit can calculate the time difference between the time from the logon exit (in the exit-to-exit communication word) and the time it receives from issuing the TIME macro. The result is the approximate duration of the session. The logoff exit can include the processing time in a data set. You can then periodically print the data set and review the time calculations.
Supply the primary and secondary language values for displaying translated information to users if your installation does not have RACF installed.
Set up a console profile for the user.