Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.

IUUBK

Prolog  

Control Block Contents  
   IUUBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  


IUUBK Prolog

 NAME       : HCPIUUBK
 DESCRIPTION: IUCV USERID AUTHORIZATION BLOCK
 DSECT      : IUUBK
 FUNCTION   : USED TO DETERMINE IF A USER IS AUTHORIZED TO
              INITIATE IUCV COMMUNICATION WITH ANOTHER
              USER OR CP SYSTEM SERVICE.
 LOCATED BY : GPR1 in HCPIDRCN
              GPR1 in HCPIUBAC
              GPR1 in HCPIUBCO
              GPR1 in HCPIUPCO
              GPR1 in HCPUDRIA
              GPR1 in HCPUDRID
 CREATED BY : HCPIDRCN, HCPIUBAC, HCPIUBCO, HCPIUPCO
 DELETED BY : HCPIDRCN, HCPIUBAC, HCPIUBCO, HCPIUPCO
 RELOCATION CONSIDERATIONS : None

 

IUUBK Control Block Content


IUUBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      IUUBK          IUCV USERID AUTHORIZATION BLOCK
0000    0 Character    8 IUUSOURC       USERID OF SOURCE COMMUNICATOR
0008    8 Character    8 IUUTARGT       USERID OF TARGET COMMUNICATOR
0010   16 Character    8 IUUNAME        "RESANY", "GATEANY", or name of
                                        resource/gateway_LU (Only for
                                        IUCV *IDENT dir. stmt.)
0018   24 Bitstring    1 IUUFLAG        Flags for IUCV *IDENT dir. stmt.
          1... ....      IUUGWAY        X'80' IUUGWAY IUUNAME is a
                                        gateway_LU
          .1.. ....      IUUGLBL        X'40' IUUGLBL IUUNAME is a global
                                        resource
          ..1. ....      IUULCL         X'20' IUULCL IUUNAME is a local
                                        resource
          .... ..1.      IUURVK         X'02' IUURVK Authorized to revoke
          .... ...1      IUUIDEN        X'01' IUUIDEN Authorized to
                                        identify
0019   25 Bitstring    7 *              Reserved for future IBM use
          00000004       IUUSIZE        (*-IUUBK+7)/8 IUU BLOCK SIZE IN
                                        DW'S
          00000020       IUULEN         (*-IUUBK) IUU block size in bytes

 

IUUBK Storage Layout

          
*** IUUBK - IUCV USERID AUTHORIZATION BLOCK
*
*     +-------------------------------------------------------+
*   0 |                       IUUSOURC                        |
*     +-------------------------------------------------------+
*   8 |                       IUUTARGT                        |
*     +-------------------------------------------------------+
*  10 |                       IUUNAME                         |
*     +------+------------------------------------------------+
*  18 |:FLAG |////////////////////////////////////////////////|
*     +------+------------------------------------------------+
*  20
*
*** IUUBK - IUCV USERID AUTHORIZATION BLOCK

 

IUUBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
IUUFLAG        0018
IUUGLBL        0018 40
IUUGWAY        0018 80
IUUIDEN        0018 01
IUULCL         0018 20
IUULEN         0019 00000020
IUUNAME        0010
IUURVK         0018 02
IUUSIZE        0019 00000004
IUUSOURC       0000
IUUTARGT       0008

This information is based on z/VM V6R2.0. Last updated on 21 Nov 2011 at 11:06:09 EDT.
Copyright IBM Corporation, 1990, 2011