LUNBK Back to Index page
 
Prolog 
Control Block Contents 
   LUNBK DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  LUNBK Prolog Top of page
  
 NAME       : HCPLUNBK
 DESCRIPTION: LU Name COntrol Block
 DSECT      : LUNBK
 FUNCTION   : Control block used to represent a CP Communications
              gateway (LU).
 LOCATED BY : HCPBUUUT points to the first available LUNBK
 CREATED BY : HCPSGA when a new gateway is activated.
              HCPAAU when identifying the system gateway.
 DELETED BY : HCPSGA when a new gateway is deactivated.
              HCPAAU when a gateway is revoked.
 SERIALIZED :
 RELOCATION CONSIDERATIONS : None
 
 
  LUNBK Control Block Content Top of page
  




 LUNBK DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      LUNBK          LU Name COntrol Block
0000    0 Character    8 LUNNAME        Gateway (LU) name
0008    8 Address      4 LUNNEXT        Next LUNBK in list
000C   12 Bitstring    1 LUNFLAGS       Flags
          1... ....      LUNCOMP        X'80' LUNCOMP The *IDENT IUCV
                                        path is complete
          .1.. ....      LUNSYSGT       X'40' LUNSYSGT This is the system
                                        gateway
          ..1. ....      LUNPRIV        X'20' LUNPRIV This is a private
                                        LU
          ...1 ....      LUNDED         X'10' LUNDED Dedicated to LUNUSER
          .... 1...      LUNCMR         X'08' LUNCMR Authorizes LUNUSER
                                        as CMR
          .... .1..      LUNACTIP       X'04' LUNACTIP Activate in
                                        progress
          .... ..1.      LUNGONE        X'02' LUNGONE The LUNBK is
                                        removed from list
          .... ...1      LUNESTAB       X'01' LUNESTAB Gateway is fully
                                        established
000D   13 Bitstring    1 LUNSECCD       Security code
          00000000       LUNNONE        0 LUNNONE No session level
                                        security
          00000001       LUNOPT         1 LUNOPT Session level security
                                        is optional
          00000002       LUNBASIC       2 LUNBASIC Basic level of session
                                        level security is performed for
                                        this gateway
          00000003       LUNENHAN       3 LUNENHAN Enhanced level of
                                        session level security is
                                        performed for this gateway
000E   14 Signed       2 LUNPATH        *IDENT IUCV path id
0010   16 Character    8 LUNLUGAT       Gateway portion of LU (1st 8
                                        bytes)
0018   24 Character    8 LUNUSER        Userid for dedicated gateway
0020   32 Character    8 LUNNETID       Default network ID for gateway
0028   40 Address      4 LUNENTCC       Connect Complete interrupt exit
002C   44 Address      4 LUNENTSV       Sever interrupt exit
0030   48 Address      4 LUNENTSD       Send Data routine
0034   52 Signed       4 *              Reserved
0038   56 Signed       4 LUNSAVBK       SAVBK of suspended ACT LU process
003C   60 Signed       4 *              Reserved
          00000008       LUNSIZE        (*-LUNBK+7)/8 Size, in
                                        doublewords, of LUNBK
 
 
  LUNBK Storage Layout Top of page
  
          
*** LUNBK - LU Name COntrol Block
*
*     +-------------------------------------------------------+
*   0 |                       LUNNAME                         |
*     +---------------------------+------+------+-------------+
*   8 |         LUNNEXT           |:FLAGS|:SECCD|  LUNPATH    |
*     +---------------------------+------+------+-------------+
*  10 |                       LUNLUGAT                        |
*     +-------------------------------------------------------+
*  18 |                       LUNUSER                         |
*     +-------------------------------------------------------+
*  20 |                       LUNNETID                        |
*     +---------------------------+---------------------------+
*  28 |         LUNENTCC          |         LUNENTSV          |
*     +---------------------------+---------------------------+
*  30 |         LUNENTSD          |///////////////////////////|
*     +---------------------------+---------------------------+
*  38 |         LUNSAVBK          |///////////////////////////|
*     +---------------------------+---------------------------+
*  40
*
*** LUNBK - LU Name COntrol Block
 
 
  LUNBK Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
LUNACTIP       000C 04
LUNBASIC       000D 00000002
LUNCMR         000C 08
LUNCOMP        000C 80
LUNDED         000C 10
LUNENHAN       000D 00000003
LUNENTCC       0028
LUNENTSD       0030
LUNENTSV       002C
LUNESTAB       000C 01
LUNFLAGS       000C
LUNGONE        000C 02
LUNLUGAT       0010
LUNNAME        0000
LUNNETID       0020
LUNNEXT        0008
LUNNONE        000D 00000000
LUNOPT         000D 00000001
LUNPATH        000E
LUNPRIV        000C 20
LUNSAVBK       0038
LUNSECCD       000D
LUNSIZE        003C 00000008
LUNSYSGT       000C 40
LUNUSER        0018
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:52:27 EDT.
Copyright IBM Corporation, 1990, 2022