DIUCV

Prolog  

Control Block Contents  
   DIUCV DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

DIUCV Prolog

 NAME       : HCPDIUCV
 DESCRIPTION: DIRECTORY IUCV BLOCK
 DSECT      : DIUCV
 FUNCTION   : TO PRESERVE INFORMATION FROM THE "IUCV"
              DIRECTORY CONTROL STATEMENT.  THERE WILL
              BE ONE HCPDIUCV CREATED FOR EACH "IUCV"
              STATEMENT IN THE SOURCE DIRECTORY.
 LOCATED BY : FIELDS DVMDIDAS AND DVMDIDSP IN DVMD
              FIELDS DIUCDASD AND DIUCDISP IN DIUCV
              GPR2 IN HCPIUBAC
              GPR2 IN HCPIUBCO
              GPR2 in HCPIUPCO
              GPR5 in HCPUDRIA
              GPR5 in HCPUDRID
 CREATED BY : HCPDIR, HCPUDRIA
 DELETED BY : HCPIUBAC, HCPIUBCO, HCPIUPCO

DIUCV Control Block Content

DIUCV DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      DIUCV          DIRECTORY IUCV BLOCK
0000    0 Character    8 DIUCUSER       USERID AUTHORIZED TO CONNECT TO
0008    8 Signed       4 DIUCDASD       DASD ADDRESS OF NEXT DIUCV CCPV
                                        for CKD DASD addresses PPPV for
                                        FBA DASD addresses
000C   12 Signed       2 DIUCDISP       DISPLACEMENT OF NEXT DIUCV
000E   14 Signed       2 DIUCMLIM       MESSAGE LIMIT
0010   16 Bitstring    1 DIUCSTAT       FLAGS
          1... ....      DIUCPRTY       X'80' PRIORITY WAS SPECIFIED
0011   17 Bitstring    1 DIUCFLAG       Flags for IUCV *IDENT dir. stmt.
          1... ....      DIUCGWAY       X'80' DIUCNAME is a gateway_LU
          .1.. ....      DIUCGLBL       X'40' DIUCNAME is a global
                                        resource
          ..1. ....      DIUCLCL        X'20' DIUCNAME is a local
                                        resource
          .... ..1.      DIUCRVK        X'02' Authorized to revoke
          .... ...1      DIUCIDEN       X'01' Authorized to identify
0012   18 Bitstring    6 *              Reserved for future IBM use
0018   24 Character    8 DIUCNAME       "RESANY", "GATEANY", or name of
                                        resource/gateway_LU (Only for
                                        IUCV *IDENT dir. stmt.)
          00000004       DIUCSIZE       (*-DIUCV+7)/8 DIUCV SIZE IN DW'S
          00000020       DIUCLEN        (*-DIUCV) DIUCV SIZE IN BYTES

DIUCV Storage Layout

          
*** DIUCV - DIRECTORY IUCV BLOCK
*
*     +-------------------------------------------------------+
*   0 |                       DIUCUSER                        |
*     +---------------------------+-------------+-------------+
*   8 |         DIUCDASD          |  DIUCDISP   |  DIUCMLIM   |
*     +------+------+-------------+-------------+-------------+
*  10 |:CSTAT|:CFLAG|/////////////////////////////////////////|
*     +------+------+-----------------------------------------+
*  18 |                       DIUCNAME                        |
*     +-------------------------------------------------------+
*  20
*
*** DIUCV - DIRECTORY IUCV BLOCK

DIUCV Cross Reference

Symbol         Dspl Value
-------------- ---- -----
DIUCDASD       0008
DIUCDISP       000C
DIUCFLAG       0011
DIUCGLBL       0011 40
DIUCGWAY       0011 80
DIUCIDEN       0011 01
DIUCLCL        0011 20
DIUCLEN        0018 00000020
DIUCMLIM       000E
DIUCNAME       0018
DIUCPRTY       0010 80
DIUCRVK        0011 02
DIUCSIZE       0018 00000004
DIUCSTAT       0010
DIUCUSER       0000