Oracle® Tuxedo® Mainframe Adapter for TCP
CICS User Guide
Release 10.0
June 2008
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Contents
Introducing Tuxedo Mainframe Adapter for TCP (CICS)
What You Need to Know. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Oracle TMA TCP for CICS Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Oracle TMA TCP Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Domains-based Gateway Connectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Domain Name Server Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Dynamic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Load Balancing of a Requester. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Automatic Enabling of LMID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Oracle TMA TCP for CICS Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
The TMA TCP for CICS Handler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
The TMA TCP for CICS Application Handler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
The TMA TCP for CICS Pre-requester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
The TMA TCP for CICS Requester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
IBM TCP/IP Sockets Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Using Other Supported TCP/IP Sockets Products. . . . . . . . . . . . . . . . . . . . . . . . 1-5
IBM TCP/IP Sockets for CICS Supplied Listener . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
IBM User Maintained Tables (UMT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Processing Scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Requests from within an Oracle Tuxedo Domain. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Requests from within CICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
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Getting Started with TMA TCP for CICS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Understanding How Oracle TMA TCP for CICS Works
Starting the Listener Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Running Oracle TMA TCP for CICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Initializing the Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Processing Remote Service Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Shutting Down the Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Using BDWN to Shut Down the Handler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Starting the Requester Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Processing TMA TCP for CICS Originated Service Requests . . . . . . . . . . . . . . . . . 2-5
Shutting Down the Requester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Using BDWN to Shut Down the Requester . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Translating Data with TMA TCP gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Oracle Tuxedo Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Data Translation Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Strings and Numeric Data: A Closer Look . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Including NULL Characters in String Length Calculations . . . . . . . . . . . . . . . 2-10
Converting Numeric Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Configuring the TMA TCP Security
Service Request Processing with Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Security Checking from UNIX to Mainframe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Security Checking from Mainframe to UNIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Setting Up Security for TMA TCP for CICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Securing User Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Securing Inbound Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Securing Outbound Connections from CICS to UNIX . . . . . . . . . . . . . . . . . . . . . . . 3-5
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Securing Outbound Connections from CICS to CICS . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Securing Outbound Connections from CICS to IMS. . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Securing Outbound Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Configuring and Administering Oracle TMA TCP for CICS
Menu Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
The Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
The Connection Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
PF Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Update Connection Screen (C2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Inquire Connection Screen (C3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Browse Connection Screen (C5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
The Requester Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
PF Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Insert Requester Screen (R1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Update Requester Screen (R2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Inquire Requester Screen (R3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
Delete Requester Screen (R4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Browse Requester Screen (R5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
The Outbound Service Information Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
PF Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26
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Insert Outbound Service Information Screen (S1). . . . . . . . . . . . . . . . . . . . . . . . . . 4-26
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Update Outbound Service Information Screen (S2) . . . . . . . . . . . . . . . . . . . . . . . . 4-28
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
Inquire Outbound Service Information Screen (S3) . . . . . . . . . . . . . . . . . . . . . . . . 4-29
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
Delete Outbound Service Information Screen (S4) . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Browse Outbound Service Information Screen (S5) . . . . . . . . . . . . . . . . . . . . . . . . 4-32
The User Connection ACCOUNT Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
PF Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33
Insert User Connection ACCOUNT Screen (U1) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Update User Connection ACCOUNT Screen (U2) . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
Inquire User Connection ACCOUNT Screen (U3) . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Delete User Connection ACCOUNT Screen (U4) . . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37
The Browse User Connection ACCOUNT Screen (U5) . . . . . . . . . . . . . . . . . . . . . 4-37
The Inbound Service Information Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
PF Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
Insert Inbound Service Information Screen (I1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
Update Inbound Service Information Screen (I2) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42
Inquire Inbound Service Information Screen (I3) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
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Delete Inbound Service Information Screen (I4) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
The Browse Inbound Service Screen (I5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47
The Handler Configuration Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48
PF Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48
Update Handler Configuration Screen (H2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50
Inquire Handler Configuration Screen (H3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50
Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51
Dynamically Configuring TMA TCP for CICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52
Modifying Outbound Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52
Modifying User Connection Accounts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52
Modifying Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53
Deleting Requester LMIDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53
Administering the Gateways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53
Programming Oracle Tuxedo Mainframe Adapter for TCP (CICS)
Client Application Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Buffer Layout Issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Making Calls from a CICS Client Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Error Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Gateway Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
MVS or CICS Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Application Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Server Application Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Programming Services with a Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Programming Services without a Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
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Modifying the Length of the Return Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Modifying Return Message Lengths for C Programs. . . . . . . . . . . . . . . . . . . . . 5-9
Modifying Return Message Lengths for COBOL Programs . . . . . . . . . . . . . . . 5-9
Error and Informational Messages
Messages Returned to the Remote Gateway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Messages Written to the TMA TCP for CICS Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Codes Returned to a CICS Client Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Informational Process Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
Data Field Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
System Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-13
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C H A P T E R
1
Introducing Tuxedo Mainframe Adapter
for TCP (CICS)
Oracle Tuxedo Mainframe Adapter for TCP (CICS) (hereafter referenced as TMA TCP for
CICS) is a gateway connectivity feature that makes it possible for non-transactional tasks within
Oracle Tuxedo regions to access services provided by CICS application programs and vice-versa.
An Oracle Tuxedo region, or administrative domain, is a single computer or network of
computers that shares a single Oracle Tuxedo configuration.
The TMA TCP for CICS software is designed to provide transparent CICS program access from
within an Oracle Tuxedo domain and Oracle Tuxedo access from within a CICS region.
The following information introduces the TMA TCP for CICS product:
z What You Need to Know
z Oracle TMA TCP for CICS Architecture
z Oracle TMA TCP Functionality
z Oracle TMA TCP for CICS Components
z Processing Scenarios
z Getting Started with TMA TCP for CICS
What You Need to Know
This document is primarily for CICS system administrators who configure and administer TMA
TCP. In addition, programmers can find useful pointers for developing client programs and
service routines that send data through to the remote TMA TCP gateway.
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Programmers who work with TMA TCP should be familiar with CICS applications development.
System administrators who work with TMA TCP should be familiar with the following concepts,
tools, and procedures:
z TCP/IP networking
z IBM CICS Sockets Interface
z Defining new resources to CICS
z Standard CICS monitoring tools
Oracle TMA TCP for CICS Architecture
Oracle TMA TCP for CICS is composed of four CICS programs running within a CICS region:
z Handler
z Application Handler
z Pre-requester
z Requester
It uses the Sockets Interface and Sockets for CICS Listener that is shipped with the IBM TCP/IP
for CICS TS Sockets Interface. There are two different processing scenarios to consider:
z Requests that originate in a remote Oracle Tuxedo domain and request services offered by
CICS
z Requests that originate in a CICS region and request services offered by a remote Oracle
Tuxedo domain
Oracle TMA TCP Functionality
The following functionality is available in the TMA TCP product.
Domains-based Gateway Connectivity
The TMA TCP product has a domains-based architecture supporting bidirectional
communications, request/response support, and concurrent support for the CICS interface.
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Oracle TMA TCP for CICS Components
Security
The TMA TCP product grants access to Tuxedo services based on a user name supplied by CICS.
The TMA TCP for CICS product can start CICS transactions or link to programs. Oracle Tuxedo
provides the user ID to the TMA TCP product to check for appropriate security prior to initiating
the transactions.
Domain Name Server Support
The TMA TCP product supports domain name server (DNS) resolution of IP addresses. This
support allows you to change the IP address at the Domain Name Server to implement address
changes without reconfiguring the TMA TCP gateway.
Dynamic Configuration
The TMA TCP product supports dynamic configuration updates for some of the TMA TCP
configuration parameters. You can modify the configuration without shutting down and
restarting the TMA TCP product. For more information about dynamic configuration, refer to the
“Dynamically Configuring TMA TCP for CICS” section.
Load Balancing of a Requester
The TMA TCP for CICS supports Requester load balancing. TMA TCP for CICS provides
configuration for multiple services with the same name and the ability to associate them with
different unique LMIDs. This configuration enables load balancing of the Requesters.
Automatic Enabling of LMID
The TMA TCP for CICS supports automatic enabling of a given Requester which is already
disabled. The AUTO ENABLE LMIDoption is provided in the Requester configuration. When the
option is set to E (Enable), the Pre-Requester automatically enables the LMID and starts the
Requester and processes the request.
Oracle TMA TCP for CICS Components
There are four programs used in processing remotely and locally initiated requests.
z Handler
z Application Handler
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z Pre-requester
z Requester
Two administrative tools are also available:
z An online CICS administrative tool for configuring and maintaining the TMA TCP for
CICS gateway
z An administrative tool (BDWN) for terminating the four programs listed above
The TMA TCP for CICS Handler
A TMA TCP Handler is a CICS program that communicates with the TMA TCP gateway over
TCP/IP. Specifically, the Handler communicates Oracle Tuxedo requests to a CICS region. A
Handler is started automatically within a CICS region when Oracle Tuxedo issues the first service
request destined for that CICS region.
The Handler is responsible for accepting a connection request, taking control of the socket
connection, and continuing communication with the Requester in the Oracle Tuxedo domain for
the life of the socket connection. The Handler interfaces as necessary with the Application
Handler to process service requests originating from the TMA TCP gateway Requester. If
multiplexing or security is enabled, the Handler starts the Application Handler and waits for the
next service request. The Handler periodically checks for completed requests. When a request has
been completed, the Handler retrieves the response data from the Application Handler and
transmits that data back to the Requester. The Handler also periodically checks to ensure that no
active service requests have timed out.
If the multiplex count is 1 and security is disabled, or if the service request originated from a
version of TMA TCP gateway prior to Version 3.0, the Handler executes the target user
application, waits for the application to return data, transmits that data back to the TMA TCP
gateway, then waits for the TMA TCP gateway to send another service request.
The TMA TCP for CICS Application Handler
The Application Handler is started by and receives request information from the Handler. The
Application Handler executes the target user application, waits for the application to return data,
and returns the data to the Handler.
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Oracle TMA TCP for CICS Components
The TMA TCP for CICS Pre-requester
The Pre-Requestor program is used as an interface between your CICS client program and the
TMA TCP for CICS Requester. The CICS Requester, which is described in the next section, is
the program that talks with the remote Oracle Tuxedo domain. From your CICS client program
you call the Pre-requester by issuing an EXEC CICS LINK.
The TMA TCP for CICS Requester
The Requester program is responsible for making and maintaining the sockets connection with
the remote Oracle Tuxedo region. After receiving request information from the Pre-requester, the
Requester sends that information to Oracle Tuxedo. The Requester then receives any response
data returned by Oracle Tuxedo and sends it back to the Pre-requester, which in turn gives the
information back to the client program that had called it.
IBM TCP/IP Sockets Interface
The sockets interface must be enabled before TMA TCP for CICS can communicate over
TCP/IP. This procedure is true for any CICS program which uses the sockets API. The IBM
TCP/IP Sockets Interface is not supplied by Oracle Systems, Inc. You can purchase it directly
from IBM. The supplied transaction that accompanies the IBM TCP/IP Sockets for CICS product
is used to enable the sockets interface under CICS. Complete documentation is provided with the
IBM product.
Using Other Supported TCP/IP Sockets Products
This document refers to the IBM TCP/IP sockets interface product. If you are using another
supported TCP/IP product consult that product’s documentation for equivalent components.
IBM TCP/IP Sockets for CICS Supplied Listener
The IBM TCP/IP Sockets for CICS Supplied Listener is responsible for capturing the initial
connection request and passing that request along to the TMA TCP for CICS Handler. It is a piece
of the IBM TCP/IP Sockets for CICS product which you must purchase directly from IBM. The
listener should be installed and configured as outlined in the manual shipped with the product.
IBM User Maintained Tables (UMT)
The Connection file, BEAVCON, defaults to a user maintained table (UMT). If you choose to
change this file to a VSAMfile you must add the transaction BDWNto PLTSIfor CICS. This
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transaction’s primary function is to shut down all the active Requesters, but one of its secondary
functions is to remove all the entries from the Connection file. The Connection file must be empty
before initializing activity.
Processing Scenarios
This section describes the TMA TCP for CICS processing scenarios.
Requests from within an Oracle Tuxedo Domain
Because of the way Oracle Tuxedo maps services to servers, service requests from remote Oracle
Tuxedo regions to TMA TCP are transparent to the user, the Oracle Tuxedo developer, and the
CICS programmer.
As Figure 1-1 shows, TMA TCP for CICS extends this transparent access by routing Oracle
Tuxedo’s requests for CICS program services through TCP/IP network software.
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Processing Scenarios
Figure 1-1 Oracle Tuxedo to TMA TCP for CICS Routing
Tuxedo
TMA TCP Gateway
TCP/IP
Network
TCP/IP for MVS
CICS TCP/IP Listener
TMA TCP for CICS
TCP/CICS
Handler
TCP/CICS
Application
Handler
TCP/CICS
Application
Handler
User
User
User
App3
App1
App2
As Figure 1-1 shows, TMA TCP for CICS fits between the CICS user application and TCP/IP.
When Oracle Tuxedo client programs send requests to remote systems (in this case, CICS) TMA
TCP gateway transforms those requests into messages formatted appropriately for transmission
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to the remote system. Also, when remote systems respond, TMA TCP gateway transforms these
responses into replies that local client programs can process.
The TMA TCP for CICS software is implemented as an ordinary CICS program which
communicates with the Sockets Interface. It accepts connection requests from the TMA TCP
gateway and returns standard replies.
Simultaneous socket connections can exist between one TMA TCP for CICS gateway (a set of
TMA Handlers within a single CICS region) and all remote TMA TCP gateway Requesters. Each
socket connection is established automatically when a new TMA TCP gateway Requester in the
Oracle Tuxedo domain establishes communication with the TMA TCP for CICS gateway.
Requests from within CICS
The mechanism used to send requests initiated from a CICS program to a remote Oracle Tuxedo
domain is invisible to the user and significantly abstracted from the CICS programmer. Your
company’s CICS program issues an EXEC CICS LINKcommand to the Oracle TMA gateway. In
the data passed with the EXEC CICS LINKcommand, the programmer supplies the name of the
service and the data to be used as input to that service. When the EXEC CICS LINKcommand
returns, the reply to the request is placed in that same data area. If there was a problem satisfying
the service request, meaningful return codes are sent back.
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Processing Scenarios
Figure 1-2 Oracle TMA Client Gateway Configuration
User Program
EXEC CICS LINK
User Program
EXEC CICS LINK
User Program
EXEC CICS LINK
BEA
Control
Table
Pre-Requester
Read CSA
Pre-Requester
Read CSA
Pre-Requester
Read CSA
Read/Write TSQ
Read/Write TSQ
Read/Write TSQ
BEA
Control
Table
TS
Q
TS
Q
TS
Q
TS
Q
TS
Q
BEA
Common Storage
Area
Requester
Requester
(CSA)
Read/Set CSA
Read/Set CSA
GW
GW
Tuxedo
Tuxedo
Figure 1-2 shows the configuration of the Oracle TMA client gateway. A client program (your
CICS program) issues an EXEC CICS LINKcommand to the Pre-requester. The Pre-requester
verifies that the service name is valid and identifies the Requester to which it should it should
pass the request. The Pre-requester starts a different Requester for each configured remote
endpoint. The Requester then sends the request to the remote Oracle Tuxedo domain and waits
for a response. Once the response is returned, the Requester notifies the Pre-requester and hands
the response to the Pre-requester, which then returns the response to the client program.
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Getting Started with TMA TCP for CICS
The following list describes all the tasks you must perform before you can begin using TMA TCP
for CICS.
z Ensure that MVS TCP/IP is installed and configured.
z Ensure that the Sockets for CICS interface and supplied listener are installed and
configured. The listener product comes with the Sockets for CICS interface.
z From the MVS TCP/IP administrator, find out at which port and address your supplied
listener should listen. Give this information to the Oracle Tuxedo administrator so that the
remote TMA TCP gateway component knows where to find the CICS TCP/IP listener.
z Find out on which ports TMA TCP gateway is listening. This information is necessary
when you begin setting up services.
z Follow the installation instructions for TMA TCP given in the Oracle TMA TCP
Installation Guide.
z Using the administration tool (described in “Configuring and Administering Oracle TMA
TCP for CICS”) define the services and remote endpoints for use by TMA TCP. The best
way to approach this is to talk to the Oracle Tuxedo administrator and choose one service
only. Attempting to set up all the services at once would be a complex task, but after you
learn how to set up one service, you should have no difficulty setting up the others.
z Add an EXEC LINKstatement to one of your CICS programs and set up the data area as
described in “Understanding How Oracle TMA TCP for CICS Works”.
z Consult your Oracle Tuxedo administrator about service names (what to call a service and
what Oracle Tuxedo names it) and the layout of data each service expects to ensure there
are no consistency problems.
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C H A P T E R
2
Understanding How Oracle TMA TCP for
CICS Works
To understand how the Oracle Tuxedo Mainframe Adapter for TCP (CICS) (hereafter referenced
as TMA TCP for CICS) product works, you should know how the product performs the following
functions:
z Starting the Listener Program
z Running Oracle TMA TCP for CICS
– Initializing the Handler
– Processing Remote Service Requests
– Shutting Down the Handler
– Starting the Requester Program
– Processing TMA TCP for CICS Originated Service Requests
– Shutting Down the Requester
z Translating Data with TMA TCP gateway
Each of these operations is described in the following sections. Additionally, this document
describes some programming considerations that may be useful when you develop or change
programs that interoperate with TMA TCP for CICS.
Starting the Listener Program
The Listener program is supplied by IBM and is part of the Sockets for CICS software product
which must be purchased from IBM.
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Note: Before you can use TMA TCP for CICS, you must install and configure both IBM
TCP/IP and the Sockets for CICS product as outlined in the documentation that
accompanies those products.
The Listener’s job is to wait for connection requests at a particular network address and port of
your choosing. When the Listener receives a connection request it invokes the appropriate CICS
program automatically, based on the name supplied as part of the Listener’s connection protocol
buffer. For example, if the Listener receives a connection request from TMA TCP gateway
running on a remote Oracle Tuxedo node, it processes the connection and invokes the TMA TCP
Handler.
Running Oracle TMA TCP for CICS
The TMA TCP Handler is invoked automatically by the Listener process. Once invoked, the
Handler takes control of the socket connection and retains control until either the Handler is shut
down or until there is a network problem that affects the socket connection. The Handler
processes service requests up to the configured multiplex count. To process more service requests
than the configured multiplex count, TMA TCP gateway starts more than one Handler. For
limitations of the IBM Sockets for CICS Listener, refer to the appropriate IBM product
documentation.
Initializing the Handler
The very first service request that is sent from the TMA TCP gateway gateway running on a
remote Oracle Tuxedo node causes the following to occur.
1. CICS Sockets Listener starts the TMA TCP for CICS Handler
2. Listener issues a givesocket()function call
3. Handler issues a takesocket()function call
4. Listener resumes listening for new connection requests
5. Handler communicates directly with the remote TMA TCP gateway gateway using TCP/IP
Processing Remote Service Requests
1. The TMA TCP Handler receives the request from the remote TMA TCP gateway gateway (in
the Oracle Tuxedo region) over TCP/IP. If necessary, the data is translated and/or converted
into the proper data format or layout.
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Running Oracle TMA TCP for CICS
2. If the multiplex count is 1 and security is disabled, or if the service request came from a
version of TMA TCP gateway prior to Version 3.0, then the following tasks occur.
a. The Handler issues a CICS LINKcommand to execute the program specified in the TMA
TCP protocol header. With the LINKcommand it also passes along any request data
provided by the client application that made the original Oracle Tuxedo service request.
b. The Handler waits for the CICS program to finish and receives any returned data from the
CICS program.
c. The Handler transmits the response to the remote TMA TCP gateway gateway.
d. The Handler stays connected to the remote gateway awaiting another service request.
3. If the multiplex count is greater than 1 or security is enabled, then the following tasks occur.
a. The Handler issues an EXEC CICS START TRANScall with the transaction specified in the
Inbound Service File for the service specified in the TMA TCP protocol header. The
transaction should be the same as the Application Handler program.
Note: If security is enabled, the EXEC CICS START TRANSIDcall uses the user ID specified
in the TMA TCP protocol header.
b. For any completed service requests, the Handler retrieves the response data from the
Application Handler.
c. The Handler transmits the response to the remote TMA TCP gateway gateway.
d. The connection between the Handler and the gateway remains and the Handler waits for
another service request.
For tpacall/TPNOREPLYrequests, the remote program is invoked by a CICSSTART TRANSID
command and no data is returned to the original caller. In this case, a unique transaction must be
defined for the service. Use the Inbound Service Information screen to enter this unique
transaction name rather than using the transaction name that starts the Application Handler.
Shutting Down the Handler
When the network connection is lost, the Handler process automatically shuts down. The next
service request sent causes the Listener to automatically start a new Handler, if necessary.
Use the supplied shutdown transaction BDWNto terminate active TMA TCP for CICS programs.
Depending on the options specified, this causes all Handlers to shut down gracefully. The name
of the BDWNtransaction may have been changed at your site during installation, so verify the
name.
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Using BDWN to Shut Down the Handler
You can use the BDWNtransaction in a CICS region with the following parameters to shut down
Handlers in various ways. The command line syntax for BDWNis illustrated in the following
listing.
Listing 2-1 BDWNCommand Line Syntax for Handlers
BDWN [ALL | CLEANUP | HANDLER I | HANDLER]
BDWN
Shuts down all Handlers or all Requesters or both. It also frees shared memory that was
allocated by a Handler that has abended without freeing the shared memory that it
allocated. You can specify optional parameters with the BDWNtransaction to shut down
Handlers immediately or after the processing of all requests has completed. The default is
ALL.
ALL
Shuts down all Handlers and Requesters gracefully allowing them to complete all
processing of all requests that were received before the execution of the BDWN
transaction. Specifying ALLalso frees any shared memory.
This is the default for BDWN.
CLEANUP
Frees any shared memory of Handlers that have abended. CLEANUPdoes not shut
down any Handlers or Requesters.
HANDLER I
Shuts down all Handlers immediately and frees any shared memory of Handlers
that have abended. This parameter does not shut down any Requesters.
HANDLER
Shuts down all Handlers gracefully allowing them to complete all processing off
all requests that were received before the execution of the BDWNtransaction. This
parameter also frees any shared memory of Handlers that have abended. It does not
shut down any Requesters.
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Running Oracle TMA TCP for CICS
Starting the Requester Program
The Requester is started automatically when the first service request for it is made by a CICS
client program. At that point, the Requester establishes a connection with its remote endpoint and
updates its control tables with run-time information for use by subsequent requests. If the
connection with the remote endpoint is lost for any reason, the Requester attempts to re-establish
the connection automatically. After a configured number of unsuccessful connection attempts,
the Requester marks itself disabled.
If the gateway receives additional service requests, they are accommodated as long as the
maximum multiplex count for the existing connection is not exceeded. Also, additional
connections are opened, as necessary, until the configured maximum connection count is reached
or all requests are accommodated.
Processing TMA TCP for CICS Originated Service Requests
1. The CICS client program (your program) issues an EXEC CICS LINK command to the TMA
TCP for CICS Pre-requester.
2. The Pre-requester verifies that the request is valid, and then determines whether a Requester
has been started for the specific endpoint for which this request is destined. If a Requester is
not already running, the Pre-requester starts one.
3. The request is then handed over to the Requester.
4. The Requester transmits the request information to the remote Oracle Tuxedo domain.
5. If the request is a type that needs a response, the Requester receives that response back from
Oracle Tuxedo, and hands the data over to the Pre-requester.
6. The Pre-requester issues an EXEC CICS RETURNcommand to the client program (your
program). The client receives its response in the COMMAREA.
Shutting Down the Requester
There are two ways to shut down the Requester:
z Use the administrative tool (described in “Configuring and Administering Oracle TMA
TCP for CICS”) to disable the Requester. This method causes the selected Requester to
clean up its tables and shut down gracefully. It also prohibits any service requests invoking
it. When you are ready, use the administrative tool to enable the Requester.
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z Use the supplied shutdown transaction BDWN. This method causes ALL Requesters to shut
down gracefully. The name of the BDWNtransaction may have been changed at your site
during installation. Check with the person who installed TMA TCP for CICS at your site.
Using BDWN to Shut Down the Requester
You can use the BDWNtransaction in a CICS region with the following parameters to shut down
Requesters in various ways. The command line syntax for BDWNis illustrated in the following
listing.
Listing 2-2 BDWNCommand Line Syntax for Requesters
BDWN [ALL | REQUESTER I | REQUESTER]
BDWN
Shuts down all Handlers or all Requesters or both. It also frees shared memory used by
the Requesters associated with each logical machine ID (LMID). You can specify optional
parameters with the BDWNtransaction to shut down Handlers or Requesters immediately
or after processing of all requests has completed. The default is ALL.
ALL
Shuts down all Handlers and Requesters gracefully allowing them to complete all
processing of all requests that were received before the execution of the BDWN
transaction. Specifying ALLalso frees any shared memory.
This is the default for BDWN.
REQUESTER I
Shuts down all Requesters immediately and frees memory associated with each
LMID. This parameter does not shut down any Handlers.
REQUESTER
Shuts down all Requesters gracefully allowing them to complete all processing off
all requests that were received before the execution of the BDWNtransaction. It also
frees memory associated with each LMID. This parameter does not shut down any
Handlers.
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Translating Data with TMA TCP gateway
Translating Data with TMA TCP gateway
Due to the way TMA TCP gateway translates and converts data on the remote Oracle Tuxedo
system, the CICS programmer does not need to do anything to prepare data that is destined for
the remote Oracle Tuxedo system.
The key to this high degree of transparency is the TMA TCP gateway configuration. It is through
this mechanism that environmental differences, such as naming conventions and data formats, are
concealed from programmers and programs.
Although all data is converted and translated automatically by the remote TMA TCP gateway
gateway, the rules implemented are outlined in the following subsections to assist the CICS
programmer in understanding how the data is manipulated. It is important for the CICS
programmer to remember that this information is written from the point of view of the Oracle
Tuxedo environment.
When a client program on the remote Oracle Tuxedo system sends data to (or receives data from)
a service routine on a different model of computer, TMA TCP gateway automatically translates
data as required. Translation involves changing the representation of intrinsic data types by
changing attributes such as word length and byte order.
The following subsections describe the basic rules that TMA TCP gateway follows when it
translates data and provide detailed information about how TMA TCP gateway handles string and
numeric data.
Oracle Tuxedo Terminology
The following terms are some commonly used Oracle Tuxedo terms for buffer types.
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Table 2-1 Oracle Tuxedo Terminology
Term
Definition
STRING
A buffer of character data that is
terminated by the first null character in the
buffer. Typically, character string buffers
undergo translation when sent to a system
that is different from the sending system.
CARRAY
A CARRAYis a buffer of raw data that
contains no terminating character and that
undergoes no conversion or translation;
the data is sent from one system to another
without modification. A CARRAYis an
exemplary buffer type for a graphics file.
VIEW
FML
A VIEWbuffer is a collection of field
definitions that can be treated as a single
entity. It is comparable to a record layout
in COBOL or a structure in C.
FML(Fielded Manipulation Language)
buffers are variable length, dynamic,
self-describing buffers. Each field in the
buffer has its own descriptive header. In
Oracle Tuxedo, FMLbuffers can be tied
closely to VIEWbuffers so that conversion
from one to the other is direct.
Data Translation Rules
The following table lists the data translation rules that TMA TCP gateway follows.
Table 2-2 Data Translation Rules
Field Type
Translation Rules
CARRAY
Passed untranslated as sequences of bytes
Translated from ASCII to EBCDIC (if needed)
Translated to S9(4) COMP
STRING and CHAR
SHORT
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Translating Data with TMA TCP gateway
Table 2-2 Data Translation Rules
Field Type
LONG
Translation Rules
Translated to S9(9) COMP
Translated to COMP-1
Translated to COMP-2
FLOAT
DOUBLE
Note: Oracle Tuxedo provides a field type named dec_t that supports decimal values within
VIEWs. The TMA TCP gateway product translates these fields into machine independent
representations of packed decimals. For example, dec_t(m,n)becomes
S9(2*m-(n+1))V9(n) COMP-3. Therefore, a decimal field with a size of 8,5
corresponds to S9(10)V9(5) COMP-3.
The following table summarizes the translation rules between C and IBM/370 data types.
Table 2-3 Translation Rules Between C and IBM/370 Data Types
Remote Data Type
PIC X(n)
PIC X
Description
View Field Type/Length
Alpha-numeric Characters
string / n
Single Alpha-numeric Character char
PIC X(n)
PIC X
Raw Bytes
carray / n
Single Numeric Byte
16-bit Integer
carray / 1
short
PIC S9(4) COMP
PIC S9(9) COMP
COMP-1
32-bit Integer
long
Single-precision Floating Point
float
COMP-2
Double-precision Floating Point double
Packed Decimal dec_t / m,n
PIC
S9((m+(n+1))/2)V9
(n)
COMP-3
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Strings and Numeric Data: A Closer Look
This subsection provides suggestions that help you develop VIEWdefinitions for input and output
buffers and records. It also explains how string data and numeric data are treated in the TMA TCP
gateway environment.
Including NULL Characters in String Length Calculations
When you create VIEWdefinitions for input and output records that are used by CICS
applications, do not specify an extra position for the terminating NULL characters that are used
in string fields.
For example, when a CICS application program expects 10 characters in an input record, specify
10 for that field, not 10 plus 1.
Note: Although TMA TCP gateway does not require strings to be NULL-terminated, it respects
NULL termination. Therefore, when TMA TCP gateway detects a NULL (zero)
character within a string, it does not process any subsequent characters. To pass full 8-bit
data that contains embedded NULL values, use a CARRAYtype field or buffer.
The character set translations performed by TMA TCP gateway can be fully localized, in
accordance with the X/Open XPG Portability Guides. ASCII and EBCDIC translations are
loadable from message files. The TMA TCP gateway software contains default behaviors which
should meet the requirements of most English-language applications. However, you may find it
necessary to customize tables. See the Oracle TMA TCP gateway User Guide for complete
instructions.
Converting Numeric Data
You can convert numeric data into different data types easily, provided that you have enough
range in the intermediate and destination types to handle the maximum value you need to
represent.
For example, you can convert an FML field of double into a packed decimal field on the remote
target system by specifying an appropriate dec_t type VIEWelement.
In addition, you can convert numeric values into strings (and the reverse). For example, while
FML buffers do not directly support the dec_t type, you can place decimal values in string
fields and map these to dec_t fieldswithin VIEWdefinitions.
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C H A P T E R
3
Configuring the TMA TCP Security
The TMA TCP product supports a security feature that allows a requester from Oracle Tuxedo
services to pass a user ID through the CICS server interfaces for verification through a third-party
security package. The following topics explain the how to set up security:
z Service Request Processing with Security
– Security Checking from UNIX to Mainframe
– Security Checking from Mainframe to UNIX
z Setting Up Security for TMA TCP for CICS
– Securing User Connections
– Securing Inbound Services
– Securing Outbound Connections from CICS to UNIX
– Securing Outbound Connections from CICS to CICS
– Securing Outbound Connections from CICS to IMS
– Securing Outbound Services
Service Request Processing with Security
The following sections describe the process flow for security verification of a service request.
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Security Checking from UNIX to Mainframe
Figure 3-1 depicts the process flow for security verifications from TMA TCP for CICS on UNIX
to a mainframe.
Figure 3-1 Security Checking for UNIX to Mainframe Transactions
UNIX
Mainframe
3
4
2
Application
Handler
BEA TMA TCP
Gateway
Handler
5
Remote
Server
Tuxedo
Client
1
1. When the TMA TCP gateway client program performs a tpinit(), the user’s Tuxedo
identity is validated against the tpusrfile.
2. When the client program issues a tpcall()or tpacall(), Tuxedo verifies (against the
tpaclfile) the user is authorized to invoke the gateway service.
3. When the gateway establishes the initial connection, connection security information
(specified as RMTNAMEand PASSWORDin the GWICONFIGfile) is passed from the TMA TCP
gateway to the remote gateway. If the RMTNAMEand PASSWORDvalues match the values
configured on the remote gateway, the connection is established.
With each request, the TMA TCP gateway passes the user’s Tuxedo identity to the remote
TMA TCP for CICS gateway (to the Handler).
Note: To pass authority checking, the user’s Tuxedo identity must match the mainframe
user ID exactly.
4. The remote TMA TCP for CICS gateway Handler initiates an Application Handler to act on
behalf of the specified user ID.
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Service Request Processing with Security
5. The Application Handler calls the specified service using system security to check
authorization.
Note: You may need to update your surrogate security definitions to allow the successful
invocation of the CICS application program (EXEC CICS START TRANSID). See your
mainframe security administrator if your site has this requirement.
Security Checking from Mainframe to UNIX
Figure 3-2 depicts the process flow for security verifications from a mainframe to TMA TCP
gateway on UNIX.
Figure 3-2 Security Checking for Mainframe to UNIX Transactions
UNIX
Mainframe
3
4
2
Remote
Gateway
BEA TMA TCP
Gateway
Tuxedo
Server
Client
1
5
1. The user ID, established at mainframe log in, is checked by system security to verify that the
user has permission to start a client transaction.
2. The user ID is checked by system security to verify that the user has permission to send a
request to the gateway.
3. With each request, the gateway passes the user ID to the Tuxedo gateway.
Note: To pass authority checking, the user’s Tuxedo identity must match the mainframe
user ID exactly.
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4. The TMA TCP gateway maps the mainframe user ID to a Tuxedo user ID and issues the
service request on behalf of that user.
5. The Tuxedo server performs access checks (based on the tpaclfile) to verify that the user
has access to the requested service.
Setting Up Security for TMA TCP for CICS
The TMA TCP for CICS product supports enhanced security. This interface allows a requester
from Oracle Tuxedo services to pass a User ID through the CICS server interface for
authorization through your security package. For field definitions, refer to the “Configuring and
Administering Oracle TMA TCP for CICS” section.
Securing User Connections
Complete the following tasks to enable the security feature for each connection.
1. Specify SECURITY=Yin the Handler Configuration screen.
2. Enter values for the ACCOUNTand PASSWORDfields in the User Connection Account screen.
When SECURITY=Y, TMA TCP for CICS verifies the ACCOUNTand PASSWORDvalues from
the User Connection Account match the RMTACCTand PASSWORDvalues in the TMA TCP
gateway GWICONFIGfile *FOREIGNsection. If these values do not match and SECURITY=Y,
a security error occurs.
If SECURITY=N, the gateway allows a connection without any verification.
Securing Inbound Services
Complete the following tasks to enable the security feature for each inbound service.
1. Set up transaction security through the mainframe with the security administrator.
2. Specify SECURITY=Yin the Inbound Services screen for each service you want to secure.
When SECURITY=Y, the gateway attempts to start user programs with the username that
initiated the request as reported by the remote system.
If SECURITY=N, the gateway starts user programs using the gateway’s user ID (as
controlled by the socket listener).
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Setting Up Security for TMA TCP for CICS
Securing Outbound Connections from CICS to UNIX
Complete the following tasks to enable the security feature for each outbound connection.
1. Specify SECURITY=Yon the appropriate Requester screen.
2. Enter ACCOUNTand PASSWORDvalues on the appropriate Requester screen.
Verify that the parameter values for ACCOUNTand PASSWORDin the Requester screen match
the RMTACCTand PASSWORDvalues in the *FOREIGNsection of the TMA TCP gateway
GWICONFIGfile.
When SECURITY=Y, the requester program sends the ACCOUNTand PASSWORDto the remote
UNIX system on connection initiation. When SECURITY=N, the gateway attempts to make
a connection without any verification.
Securing Outbound Connections from CICS to CICS
Complete the following tasks to enable the security feature for each outbound connection.
1. Specify SECURITY=Yon the appropriate Requester screen.
2. Enter ACCOUNTand PASSWORDvalues on the appropriate Requester screen.
Verify that the parameter values for ACCOUNTand PASSWORDin the Requester screen match
the ACCOUNTand PASSWORDvalues in the User Connection Account screen.
When SECURITY=Y, the requester program sends the ACCOUNTand PASSWORDto the remote
CICS system on connection initiation. When SECURITY=N, the gateway attempts to make
a connection without any verification.
Securing Outbound Connections from CICS to IMS
Complete the following tasks to enable the security feature for each outbound connection.
1. Specify SECURITY=Yon the appropriate Requester screen.
2. Enter ACCOUNTand PASSWORDvalues on the appropriate Requester screen.
Verify that the parameter values for ACCOUNTand PASSWORDin the Requester screen match
the ACCOUNTand PASSWORDvalues in the GATEWAYTYPE=REMOTEstatement.
When SECURITY=Y, the requester program sends the ACCOUNTand PASSWORDto the remote
IMS system on connection initiation. When SECURITY=N, the gateway attempts to make a
connection without any verification.
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Securing Outbound Services
Complete the following tasks to enable the security feature for each outbound service.
1. Enable security for the corresponding outbound connection.
2. Specify SECURITY=Yon the appropriate Outbound Service screen.
3. Set up security for the appropriate users on the target system.
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C H A P T E R
4
Configuring and Administering Oracle
TMA TCP for CICS
It is the responsibility of the Oracle Tuxedo administrator to set up the configuration file, but
close coordination with the Oracle Tuxedo application developer and the CICS programmer is
necessary.
The following subsections describe the Oracle Tuxedo Mainframe Adapter for TCP (CICS)
(hereafter referenced as TMA TCP for CICS) Maintenance System. The Oracle TMA TCP for
CICS Maintenance System is an online CICS application for use in configuring, maintaining, and
administering the TMA TCP for CICS gateway. The following topics explain the Maintenance
System:
z Menu Navigation
z The Main Menu
z The Connection Screens
z The Requester Screens
z The Outbound Service Information Screens
z The User Connection ACCOUNT Screens
z The Inbound Service Information Screens
z The Handler Configuration Screens
z Dynamically Configuring TMA TCP for CICS
z Administering the Gateways
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To start the administration system, enter the transaction code as defined to CICS in the
installation procedure. If the name was not changed during installation, the name of the
transaction is BEAM.
Menu Navigation
You can access any of the following six groups of menus for maintaining connections, requesters,
outbound services, the user connection account, inbound services, and Handler configuration.
The following table describes how you can use each group of menus.
Table 4-1 Menu Groups
Menu Type
Connection
Requester
Use
To monitor and control configured and active connections
To configure and maintain remote endpoints
Outbound Service
Information
To configure each remote service and specify which
Requester to use for each service
User Connection Account
To create and maintain user accounts
Inbound Service Information To configure services residing locally that are accessed
remotely
Handler Configuration
To configure and maintain the local endpoint
Each of these topics is discussed in more detail in the following sections.
The Main Menu
The Main menu (BEAM) gives you access to all the maintenance screens.
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The Main Menu
BEAPMNU
BEA TMA 10.0 TCP FOR CICS
SELECTION SCREEN
BEAM M1
TABLE
OPERATION
----------------
-----------
C - CONNECTION
R - REQUESTER
S - OUTBOUND SERVICE INFORMATION
U - USER CONNECTION ACCOUNT
I - INBOUND SERVICE INFORMATION
H - HANDLER CONFIGURATION
1 - INSERT
2 - UPDATE
3 - INQUIRE
4 - DELETE
5 - BROWSE
SELECTION: __
(e.g. R3)
ENTER: PROCESS, PF3: EXIT
Usage
Use the Main menu to access the screens that make up the maintenance system. To move from
the Main menu to a sub-menu, enter the appropriate two-character code. The first character in the
code denotes the area in which you want to operate; the second character denotes the operation
you want to perform on that area.
The following table lists the codes for the areas of operation.
Table 4-2 Main Menu (BEAM) Sub-menu Codes
Code
Area of Operation
C
R
S
U
Connections
Requesters
Outbound Service Information
User Connection Account
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Table 4-2 Main Menu (BEAM) Sub-menu Codes
Code
I
Area of Operation
Inbound Service Information
Handler Configuration
H
The following table lists the codes for the allowable operations.
Table 4-3 Main Menu (BEAM) Operation Codes
Code
Allowable Operation
Insert
1
2
3
4
5
Update
Inquire
Delete
Browse
Because some operations are not available in all three areas, the following table lists the valid
combinations.
.
Enter This Code
To Access This Screen
Update Connection
Inquire Connection
Browse Connection
Insert Requester
C2
C3
C5
R1
R2
R3
R4
Update Requester
Inquire Requester
Delete Requester
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The Main Menu
Enter This Code
To Access This Screen
R5
S1
S2
S3
S4
S5
U1
U2
U3
U4
U5
I1
I2
I3
I4
I5
H2
H3
Browse Requester
Insert Outbound Service Information
Update Outbound Service Information
Inquire Outbound Service Information
Delete Outbound Service Information
Browse Outbound Service Information
Insert User Connection Account
Update User Connection Account
Inquire User Connection Account
Delete User Connection Account
Browse User Connection Account
Insert Inbound Service Information
Update Inbound Service Information
Inquire Inbound Service information
Delete Inbound Service Information
Browse Inbound Service Information
Update Handler Configuration
Inquire Handler Configuration
You can use the maintenance system screens to view and alter a connection, but not to insert
(create) or delete a connection. Connections are created and deleted by TMA TCP for CICS in
its normal operation.
The maintenance system checks the two-character selection code that you enter and displays the
appropriate screen if the code is valid. If the code you enter is not valid, you receive an error
message.
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The Connection Screens
The three screens available for maintaining connection instances are labeled Update, Inquiry, and
Browse. The respective screens allow you to make an inquiry concerning a specific connection,
to browse a list of all connections, or to disable/enable a connection.
A connection instance is an established TCP/IP connection between a remote endpoint and a
Requester or a Handler. For the purposes of TMA TCP for CICS, a remote endpoint is an TMA
TCP gateway gateway executing within a remote Oracle Tuxedo domain.
PF Keys
The following function keys are available on various connection screens.
Table 4-4 Function Keys
Function Key
ENTER
PF3
Definitions
Process the selection code entered
Transfer to Main Menu
PF5
Transfer to Connections Browse screen
Display the previous page of records
Display the next page of records
PF7
PF8
Note: If you enter data and press PF3or PF5before pressing ENTER, the current operation
process is aborted and the new screen is displayed.
Update Connection Screen (C2)
Use the UPDATE CONNECTIONscreen to update a record from the Connection file. When the
screen initially displays, the LOGICAL MACHINE NAMEand TYPEfields are unprotected. Enter a
valid LOGICAL MACHINE NAME(gateway ID) and TYPEand press ENTER. The screen re-displays
showing the data from the record you specified and the STATUSfield is unprotected. The message
RECORD READY FOR UPDATEdisplays. You can now make changes to the record.
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The Connection Screens
BEAPCON
BEA TMA 10.0 TCP FOR CICS
UPDATE CONNECTION
BEAM C2
LOGICAL MACHINE NAME:
________________
TYPE:
_
STATUS:
MAX MSG SIZE:
REQUESTER TASK NUMBER:
NUMBER REQUESTS:
NUMBER SUCCESS REQS:
NUMBER RECONNECTS:
NUMBER OPEN SOCKETS:
NUMBER SESSIONS ACTIVE:
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
LOGICAL MACHINE
NAME
This field name is the gateway ID. Give it a unique name up to
16 characters.Example: (bankmach1)
For Requesters, this field name is the LMIDassociated with the
service that the Requester is requesting.
For a Handler, this field name is BEAHfollowed by the task
number. The task number of the Handler is given in the
BEALOG.
TYPE
The type of connection. Specify Ifor incoming connections or
O for outgoing connections.
STATUS
The status of the connection. Specify Eto enable the connection.
Specify Dfor normal shutdown which allows initiated tasks to
complete prior to disconnecting. Specify Afor immediate
shutdown which aborts all initiated tasks and disconnects.
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Field Name
Description
MAX MSG SIZE
The largest message allowed to be sent across this connection.
The maximum is 32000. Example: (31000)
REQUESTER TASK
NUMBER
The task number of the Requester that is currently associated
with the LOGICAL MACHINE NAME. If there is not an active
Requester, the task number is for the Requester most recently
associated with that LMID.
For a Handler, this field is blank; the task number is part of the
LMID.
NUMBER REQUESTS
The number of service requests made during this connection.
The number of successful communications.
NUMBER SUCCESS
REQS
NUMBER RECONNECTS
The number of successful connections.
NUMBER OPEN
SOCKETS
The number of sockets that are currently opened by the
Requester.
NUMBER SESSIONS
ACTIVE
The number of active sessions on this connection.
Inquire Connection Screen (C3)
Use this screen to inquire about a record from the Connection file. When the screen is initially
displayed, the LOGICAL MACHINE NAMEand TYPEfields are unprotected. Enter a valid LOGICAL
MACHINE NAME(gateway ID) and TYPEand press ENTER. The screen is re-displayed with the data
from the record you specified and the LOGICAL MACHINE NAMEand TYPEfields are unprotected.
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The Connection Screens
BEAPCON
BEA TMA 10.0 TCP FOR CICS
INQUIRE CONNECTION
BEAM C3
LOGICAL MACHINE NAME:
________________
TYPE:
_
STATUS:
MAX MSG SIZE:
REQUESTER TASK NUMBER:
NUMBER REQUESTS:
NUMBER SUCCESS REQS:
NUMBER RECONNECTS:
NUMBER OPEN SOCKETS:
NUMBER SESSIONS ACTIVE:
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
LOGICAL MACHINE
NAME
This name is the gateway ID. Specify a unique name up to 16
characters. Example: (bankmach1)
For Requesters, this name is the LMIDassociated with the
service that the Requester is requesting.
For a Handler, this name is BEAHfollowed by the task number.
The task number of the Handler is given in the BEALOG.
TYPE
The type of connection. Irepresents incoming connections or
O represents outgoing connections.
STATUS
The status of the connection. Emeans the connection is
enabled. Dmeans the connection is designated for a normal
shutdown, which allows initiated tasks to complete prior to
disconnecting. A means the connection shuts down
immediately, aborts all initiated tasks, and disconnects.
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Field Name
Description
MAX MSG SIZE
The largest message allowed to be sent across this connection.
The maximum is 32000. Example: (31000)
REQUESTER TASK
NUMBER
The task number of the Requester that is currently associated
with the LOGICAL MACHINE NAME. If there is not an active
Requester, the task number is for the Requester most recently
associated with that LMID.
For a Handler, this field is blank; the task number is part of the
LMID.
NUMBER REQUESTS
The number of service requests made during this connection.
The number of successful communications.
The number of successful connections.
NUMBER SUCCESS REQS
NUMBER RECONNECTS
NUMBER OPEN SOCKETS
The number of sockets that are currently opened by the
Requester.
NUMBER SESSIONS
ACTIVE
The number of active sessions on this connection.
Browse Connection Screen (C5)
Use this screen to browse records in the Connection file and to select individual records for
further processing. If you access this screen from the Main menu, the first record on file is
displayed at the top of the screen. If you access this screen from the Connection Update screen or
the Inquire screen, the list starts with the key received from that screen.
To select a record for processing enter a valid selection code in the SEL CDEfield. For example,
to make an inquiry about a record, enter “3”. If you enter more than one selection code, the first
one is used and all others are ignored. After the selection code is validated and processed, the
screen for that process is displayed, and the record key appears in the LOGICAL MACHINE NAME
field.
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The Requester Screens
BEAPCON
BEA TMA 10.0 TCP FOR CICS
BROWSE CONNECTION
BEAM C5
SEL LOGICAL MACHINE STA MAXMSG NUMBER NUMBER NUMBER SOCK SESS ACT
CDE NAME TUS SIZE REQS SUCREQ RECONS ETS IONS IVE TYPE
--- ---------------- --- ------ ------ ------ ------ ---- ---- --- ----
_ ________________ _ _____ _____ _____ _____ __ __ _ _
_ ________________ _ _____ _____ _____ _____ __ __ _ _
_ ________________ _ _____ _____ _____ _____ __ __ _ _
_ ________________ _ _____ _____ _____ _____ __ __ _ _
_ ________________ _ _____ _____ _____ _____ __ __ _ _
_ ________________ _ _____ _____ _____ _____ __ __ _ _
_ ________________ _ _____ _____ _____ _____ __ __ _ _
_ ________________ _ _____ _____ _____ _____ __ __ _ _
_ ________________ _ _____ _____ _____ _____ __ __ _ _
_ ________________ _ _____ _____ _____ _____ __ __ _ _
* SELCDE = (2: UPD, 3: INQ)
ENTER: PROCESS, PF3: MENU, PF7: PREV, PF8: NEXT
BEG/END OF FILE
The Requester Screens
A Requester is responsible for collecting request information to be sent to the remote Oracle
Tuxedo domain. The Requester establishes network connectivity, transmits data to Oracle
Tuxedo, and receives data from Oracle Tuxedo. Each Requester is responsible for one and only
one remote endpoint (or one TCP/IP address/port combination). You can configure multiple
Requesters to point to the same endpoint, but each Requester can have only one endpoint.
On the following maintenance screens, each instance of the Requester is given a logical machine
ID (LMID). You can give a Requester any unique LMIDthat is meaningful to you. Every service
name is associated with one LMID. This method allows the Requester to know which remote
machine is responsible for a particular service.
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PF Keys
The following table lists function keys available on various requester screens.
Function Key
ENTER
PF3
Function
Process the selection code entered
Transfer to Main menu
PF5
Transfer to Requester Browse screen
Display the previous page of records
Display the next page of records
PF7
PF8
Note: If you enter data and press PF3or PF5before pressing ENTER, the operation process is
aborted and the appropriate screen is displayed.
Insert Requester Screen (R1)
Use this screen to configure a new Requester by inserting a new record into the Requester file.
When the screen is first displayed, all the fields are unprotected. Type the required data, then
press ENTER. After the data is validated and processed, the screen is re-displayed and all the fields
are unprotected.
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The Requester Screens
BEAPREQ
BEA TMA 10.0 TCP FOR CICS
INSERT REQUESTER
BEAM R1
LMID:
________________
MULTIPLEX_CNT: __
DNS: ________________________________________________________________
HOST ADDRESS:
PORT NUMBER:
_______________
_____
MIN TIME (MILLISEC):
MAX TIME (MILLISEC):
_____
_____
SECURITY(Y/N): _
ACCOUNT ID:
PASSWORD:
________
DELTA TIME (MILLISEC): _____
IDLE TIME (SECONDS): _____
REQ IDLE TIME (SECONDS): _____
LATENCY TIME (SECONDS): __
MAX CONNS: __
MAX QUEUE SIZE: _____
MAX MSG SIZE:
RETRY LIMIT:
_____
_____
LMID TYPE:
START TRAN-ID: ____
CICS DATA: ___
_
QUEUE NAME 1: ________
QUEUE NAME 2: ________
AUTO ENABLE LMID(E/D): _
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
LMID
This name is the logical machine name or gateway ID.
Give it a unique name up to 16 characters. Example:
(bankmach1)
DNS
The host name that the domain name service recognizes.
HOST ADDRESS
PORT NUMBER
The TCP/IP dot address. Example: (199.99.99.99)
The TCP port. Check with the TCP/IP administrator for
available ports. Example: (1234)
SECURITY
The status of connection-level security. Yspecifies that
security is on and Ndenotes that security is off.
Note: For additional security information, refer to the
“Configuring the TMA TCP Security” section.
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Field Name
Description
ACCOUNT ID
An eight-character ID. This ID must be the same ID that is
used on the Oracle Tuxedo-side configuration. Coordinate
with the Oracle Tuxedo Administrator. Required if there is
an entry in the PASSWORDfield. Example: (CICS001A)
PASSWORD
An eight-character password. This password must be the
same as on the Oracle Tuxedo-side configuration.
Coordinate with the Oracle Tuxedo Administrator.
Required if there is an entry in the ACCOUNT IDfield.
Example: (LETMEIN2)
MAX QUEUE SIZE
MAX MSG SIZE
RETRY LIMIT
Specifies the size of the local queue where requests are
stored for servicing. A typical setting is 200.
The largest message allowed to be sent across this
connection. The maximum is 32000. Example: (4096)
If the connection fails, this number determines how many
attempts the system makes to reestablish the connection
before marking the connection disabled. Example: (5).
LMID TYPE
The type of gateway the remote system is running (C for
CICS, I for IMS, T for Tuxedo)
START TRANID
CICS DATA
The ID of the transaction to be started if the remote system
type is CICS.
A string to be passed to the IBM TCP/IP Listener for use
with the TMA TCP for CICS gateway. The default is " ".
MULTIPLEX CNT
MIN TIME
The number of concurrent requests for each connection.
The minimum length of time (in milliseconds) for a socket
read to wait for data to be processed.
MAX TIME
The maximum length of time (in milliseconds) for a
socket read to wait for data to be processed.
DELTA TIME
The time increase (in milliseconds) from MIN TIMEto
MAX TIME.
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The Requester Screens
Field Name
Description
IDLE TIME
The amount of time in seconds that a connection is idle
before it is closed. IDLE TIMEshould be a smaller
amount of time than REQ IDLE TIME. A typical setting
is 30 seconds.
REQ IDLE TIME
LATENCY TIME
MAX CONNS
The amount of time in seconds that a Requester is idle
before it terminates. A typical setting is 120 seconds.
Network time and system processing time added to give a
true system wait time (in seconds).
The maximum number of connections the Requester
opens. The maximum value is 50for IBM TCP/IP.
QUEUE NAME 1
The unique name of a TS Q that is used for
communications between the Pre-requester and the
Requester.
QUEUE NAME 2
The unique name of a TS Q that is used for
communications between the Pre-requester and the
Requester.
AUTO ENABLE LMID(E|D)
This field is used for auto enabling of LMID. Enter E to
automatically enable a disabled Requester LMID for
TMA TCP for CICS gateway. Enter D to disable the
automatic enabling of a disabled Requester LMID for
TMA TCP for CICS gateway.
Update Requester Screen (R2)
Use this screen to update a record from the Requester file. The fields are the same as the ones on
the Requester Insert screen, but on this screen you can change the values.
When the screen is first displayed, the LMIDfield is unprotected. Enter a logical machine name
and press ENTER. The screen is re-displayed showing the data from the requested record. The
HOST ADDRESS, PORT NUMBER, ACCOUNT ID, PASSWORD, MAX MSG SIZE, and CONNECT RETRY
LIMITfields are unprotected. The following message is displayed: RECORD READY FOR UPDATE.
After the changes you entered are validated and processed, the screen is re-displayed and the
LMIDfield is unprotected.
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BEAPREQ
BEA TMA 10.0 TCP FOR CICS
UPDATE REQUESTER
BEAM R2
LMID:
________________
MULTIPLEX_CNT: __
DNS: ________________________________________________________________
HOST ADDRESS:
PORT NUMBER:
_______________
_____
MIN TIME (MILLISEC):
MAX TIME (MILLISEC):
_____
_____
SECURITY(Y/N): _
ACCOUNT ID:
PASSWORD:
________
DELTA TIME (MILLISEC): _____
IDLE TIME (SECONDS): _____
REQ IDLE TIME (SECONDS): _____
LATENCY TIME (SECONDS): __
MAX CONNS: __
MAX QUEUE SIZE: _____
MAX MSG SIZE:
RETRY LIMIT:
_____
_____
LMID TYPE:
START TRAN-ID: ____
CICS DATA: ___
_
QUEUE NAME 1: ________
QUEUE NAME 2: ________
AUTO ENABLE LMID(E/D): _
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
LMID
This name is the logical machine name or gateway ID. Give it a
unique name up to 16 characters. Example: (bankmach1)
DNS
The host name that the Domain Name Service recognizes.
HOST ADDRESS
PORT NUMBER
The TCP/IP dot address. Example: (199.99.99.99)
The TCP port. Check with the TCP/IP administrator for available
ports. Example: (1234)
SECURITY
The status of security. Yspecifies that security is on and Ndenotes
that security is off.
Note: For additional security information, refer to “Configuring
the TMA TCP Security”.
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The Requester Screens
Field Name
Description
ACCOUNT ID
An eight-character ID for connection security. This ID must be the
same ID that is used on the Oracle Tuxedo-side configuration.
Coordinate with the Oracle Tuxedo Administrator. Required if
there is an entry in the PASSWORDfield. Example: (CICS001A)
PASSWORD
An eight-character password for connection security. This
password must be the same as on the Oracle Tuxedo-side
configuration. Coordinate with the Oracle Tuxedo Administrator.
Required if there is an entry in the ACCOUNT IDfield. Example:
(LETMEIN1)
MAX QUEUE SIZE
MAX MSG SIZE
RETRY LIMIT
Specifies the size of the local queue where requests are stored for
servicing. A typical setting is 200.
The largest message allowed to be sent across this connection. The
maximum is 32000. Example: (4096)
If the connection fails, this number determines how many attempts
the system makes to reestablish the connection before marking the
connection disabled. Example: (5)
LMID TYPE
The type of gateway the remote system is running (C for CICS, I
for IMS, T for Tuxedo)
START TRANID
CICS DATA
The ID of the transaction to be started if the remote system type is
CICS.
A string to be passed to the IBM TCP/IP Listener for use with the
TMA TCP for CICS gateway. The default is " ".
MULTIPLEX CNT
MIN TIME
The number of concurrent requests for each connection.
The minimum length of time (in milliseconds) for a socket read to
wait for data to be processed.
MAX TIME
The maximum length of time (in milliseconds) for a socket read to
wait for data to be processed.
DELTA TIME
IDLE TIME
The time increase (in milliseconds) from MIN TIMEto MAX
TIME.
The amount of time in seconds that a connection is idle before it is
closed. IDLE TIMEshould be a smaller amount of time than REQ
IDLE TIME. A typical setting is 30 seconds.
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Field Name
Description
REQ IDLE TIME
The amount of time in seconds that a Requester is idle before it
terminates. A typical setting is 120 seconds.
LATENCY TIME
MAX CONNS
Network time and system processing time added to give a true
system wait time (in seconds).
The maximum number of connections the Requester opens. The
maximum value is 50for IBM TCP/IP.
QUEUE NAME 1
QUEUE NAME 2
The unique name of a TS Q that is used for communications
between the Pre-requester and the Requester.
The unique name of a TS Q that is used for communications
between the Pre-requester and the Requester.
AUTO ENABLE
LMID(E|D)
Enter E to automatically enable a disabled Requester LMID for
TMA TCP for CICS gateway. Enter D to disable the automatic
enabling of a disabled Requester LMID for TMA TCP for CICS
gateway.
Inquire Requester Screen (R3)
Use this screen to make an inquiry about a record from the Requester file. The screen is initially
displayed with the LOGICAL MACHINE NAMEfield unprotected. Enter the logical machine name
and press ENTER. The screen is re-displayed with the data from the requested record and the
LOGICAL MACHINE NAMEfield is unprotected.
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The Requester Screens
BEAPREQ
BEA TMA 10.0 TCP FOR CICS
INQUIRE REQUESTER
BEAM R3
LMID:
________________
MULTIPLEX_CNT: __
DNS: ________________________________________________________________
HOST ADDRESS:
PORT NUMBER:
_______________
_____
MIN TIME (MILLISEC):
MAX TIME (MILLISEC):
_____
_____
SECURITY(Y/N): _
ACCOUNT ID:
PASSWORD:
________
DELTA TIME (MILLISEC): _____
IDLE TIME (SECONDS): _____
REQ IDLE TIME (SECONDS): _____
LATENCY TIME (SECONDS): __
MAX CONNS: __
MAX QUEUE SIZE: _____
MAX MSG SIZE:
RETRY LIMIT:
_____
_____
LMID TYPE:
START TRAN-ID: ____
CICS DATA: ___
_
QUEUE NAME 1: ________
QUEUE NAME 2: ________
AUTO ENABLE LMID(E/D): _
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
LMID
This name is the logical machine name or gateway ID. This name
is a unique name up to 16 characters. Example: (bankmach1)
DNS
The host name that the domain Name Service recognizes.
HOST ADDRESS
PORT NUMBER
The TCP/IP dot address. Example: (199.99.99.99)
The TCP/IP port. Check with the TCP/IP administrator for
available ports. Example: (1234)
SECURITY
The status of security. Yspecifies that security is on and Ndenotes
that security is off.
Note: For additional security information, refer to the
“Configuring the TMA TCP Security” section.
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Field Name
Description
ACCOUNT ID
An eight-character ID. This ID must be the same ID that is used
on the Oracle Tuxedo-side configuration. Coordinate with the
Oracle Tuxedo Administrator. Required if there is an entry in the
PASSWORDfield. Example: (CICS001A)
PASSWORD
An eight-character password. This password must be the same as
the password used on the Oracle Tuxedo-side configuration.
Coordinate with the Oracle Tuxedo Administrator.
Required if there is an entry in the ACCOUNT IDfield. Example:
(LETMEIN1)
MAX QUEUE SIZE
MAX MSG SIZE
RETRY LIMIT
Specifies the size of the local queue where requests are stored for
servicing. A typical setting is 200.
The largest message allowed to be sent across this connection. The
maximum is 32000. Example: (4096)
If the connection fails, this number determines how many
attempts the system makes to reestablish the connection before
marking the connection disabled. Example: (5).
LMID TYPE
The type of gateway the remote system is running (C for CICS, I
for IMS, T for Tuxedo)
START TRANID
CICS DATA
The ID of the transaction to be started if the remote system type is
CICS.
A string to be passed to the IBM TCP/IP Listener for use with the
TMA TCP for CICS gateway. The default is " ".
MULTIPLEX CNT
MIN TIME
The number of concurrent requests for each connection.
The minimum length of time (in milliseconds) for a socket read to
wait for data to be processed.
MAX TIME
The maximum length of time (in milliseconds) for a socket read to
wait for data to be processed.
DELTA TIME
IDLE TIME
The time increase (in milliseconds) from MIN TIMEto MAX
TIME.
The amount of time in seconds that a connection is idle before it
is closed. IDLE TIMEshould be a smaller amount of time than
REQ IDLE TIME. A typical setting is 30 seconds.
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The Requester Screens
Field Name
Description
REQ IDLE TIME
The amount of time in seconds that a Requester is idle before it
terminates. A typical setting is 120 seconds.
LATENCY TIME
MAX CONNS
Network time and system processing time added to give a true
system wait time (in seconds).
The maximum number of connections the Requester opens. The
maximum value is 50for IBM TCP/IP.
QUEUE NAME 1
QUEUE NAME 2
The unique name of a TS Q that is used for communications
between the Pre-requester and the Requester.
The unique name of a TS Q that is used for communications
between the Pre-requester and the Requester.
AUTO ENABLE
LMID(E|D)
Enter E to automatically enable a disabled Requester LMID for
TMA TCP for CICS gateway. Enter D to disable the automatic
enabling of a disabled Requester LMID for TMA TCP for CICS
gateway.
Delete Requester Screen (R4)
Use this screen to delete a record from the Requester file.
WARNING: Deleting a Requester record can have serious ramifications. Think carefully
before performing this operation. If there are any Service records that point to this
GWID, any client calls to those services are rejected because Oracle TMA does not
know to which remote machine the request should go.
The screen is initially displayed with the LOGICAL MACHINE NAMEfield unprotected. Enter the
logical machine name and press ENTER. The screen is then re-displayed with the data from the
requested record and the LOGICAL MACHINE NAMEfield is protected. The following message is
displayed: TO CONFIRM DELETE, PRESS ENTER AGAIN.
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BEAPREQ
BEA TMA 10.0 TCP FOR CICS
DELETE REQUESTER
BEAM R4
LMID:
________________
MULTIPLEX_CNT: __
DNS: ________________________________________________________________
HOST ADDRESS:
PORT NUMBER:
_______________
_____
MIN TIME (MILLISEC):
MAX TIME (MILLISEC):
_____
_____
SECURITY(Y/N): _
ACCOUNT ID:
PASSWORD:
________
DELTA TIME (MILLISEC): _____
IDLE TIME (SECONDS): _____
REQ IDLE TIME (SECONDS): _____
LATENCY TIME (SECONDS): __
MAX CONNS: __
MAX QUEUE SIZE: _____
MAX MSG SIZE:
RETRY LIMIT:
_____
_____
LMID TYPE:
START TRAN-ID: ____
CICS DATA: ___
_
QUEUE NAME 1: ________
QUEUE NAME 2: ________
AUTO ENABLE LMID(E/D): _
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
LMID
This name is the logical machine name or gateway ID.
This name is a unique name up to 16 characters. Example:
(bankmach1)
DNS
The host name that the domain Name Service recognizes.
HOST ADDRESS
PORT NUMBER
The TCP/IP dot address. Example: (199.99.99.99)
The TCP/IP port. Check with the TCP/IP administrator
for available ports. Example: (1234)
SECURITY
The status of security. Yspecifies that security is on and N
denotes that security is off.
Note: For additional security information, refer to the
“Configuring the TMA TCP Security” section.
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The Requester Screens
Field Name
Description
ACCOUNT ID
An eight-character ID. This name must be the same ID
that is used on the Oracle Tuxedo-side configuration.
Coordinate with the Oracle Tuxedo Administrator.
Required if there is an entry in the PASSWORDfield.
Example: (CICS001A)
PASSWORD
An eight-character password. This password must be the
same as on the Oracle Tuxedo-side configuration.
Coordinate with the Oracle Tuxedo Administrator.
Required if there is an entry in the ACCOUNT IDfield.
Example: (LETMEIN1)
MAX QUEUE SIZE
MAX MSG SIZE
RETRY LIMIT
Specifies the size of the local queue where requests are
stored for servicing. A typical setting is 200.
The largest message allowed to be sent across this
connection. The maximum is 32000. Example: (4096)
If the connection fails, this number determines how many
attempts the system makes to reestablish the connection
before marking the connection disabled. Example: (5).
LMID TYPE
The type of gateway the remote system is running (C for
CICS, I for IMS, T for Tuxedo)
START TRANID
CICS DATA
The ID of the transaction to be started if the remote system
type is CICS.
A string to be passed to the IBM TCP/IP Listener for use
with the TMA TCP for CICS gateway. The default is " ".
MULTIPLEX CNT
MIN TIME
The number of concurrent requests for each connection.
The minimum length of time (in milliseconds) for a socket
read to wait for data to be processed.
MAX TIME
The maximum length of time (in milliseconds) for a
socket read to wait for data to be processed.
DELTA TIME
The time increase (in milliseconds) from MIN TIMEto
MAX TIME.
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Field Name
Description
IDLE TIME
The amount of time in seconds that a connection is idle
before it is closed. IDLE TIMEshould be a smaller
amount of time than REQ IDLE TIME. A typical setting
is 30 seconds.
REQ IDLE TIME
LATENCY TIME
MAX CONNS
The amount of time in seconds that a Requester is idle
before it terminates. A typical setting is 120 seconds.
Network time and system processing time added to give a
true system wait time (in seconds).
The maximum number of connections the Requester
opens. The maximum value is 50for IBM TCP/IP.
QUEUE NAME 1
The unique name of a TS Q that is used for
communications between the Pre-requester and the
Requester.
QUEUE NAME 2
The unique name of a TS Q that is used for
communications between the Pre-requester and the
Requester.
AUTO ENABLE LMID(E|D)
Enter E to automatically enable a disabled Requester
LMID for TMA TCP for CICS gateway. Enter D to
disable the automatic enabling of a disabled Requester
LMID for TMA TCP for CICS gateway.
Browse Requester Screen (R5)
Use this screen to browse a list of the records in the Requester file. Additionally, you can select
a record for further processing by entering a valid selection code in the first column of that
record’s row.
If you access this screen from the Main menu, the first record on file is displayed at the top of the
screen. If you access this screen from the Insert, Update, Inquire, or Delete screens, the key
received from that screen determines which records are displayed.
To choose a record, enter a valid selection code in the SEL CDEfield next to that record. For
example, to make an inquiry about a record, enter “3”. If you enter more than one selection code,
the first one is used and the others are ignored.
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The Outbound Service Information Screens
After the entry in the SEL CDEfield is validated and processed, the screen for that process is
displayed and the record key appears in the LOGICAL MACHINE NAMEfield.
BEAPREQ
BEA TMA 10.0 TCP FOR CICS
BROWSE REQUESTER
BEAM R5
SEL LOGICAL MACHINE
HOST
ADDRESS
PORT MAXM CONN LMID START
NUM SIZE R-LIM TYPE TRNID
CDE
NAME
--- ---------------- --------------- ----- ----- ----- ---- -----
_ ________________ _______________ _____ _____ _____ _ ____
_ ________________ _______________ _____ _____ _____ _ ____
_ ________________ _______________ _____ _____ _____ _ ____
_ ________________ _______________ _____ _____ _____ _ ____
_ ________________ _______________ _____ _____ _____ _ ____
_ ________________ _______________ _____ _____ _____ _ ____
_ ________________ _______________ _____ _____ _____ _ ____
_ ________________ _______________ _____ _____ _____ _ ____
_ ________________ _______________ _____ _____ _____ _ ____
_ ________________ _______________ _____ _____ _____ _ ____
* SELCDE = (1: INS, 2: UPD, 3: INQ, 4: DEL)
ENTER: PROCESS, PF3: MENU, PF7: PREV, PF8: NEXT
RECORD NOT FOUND
The Outbound Service Information Screens
A service is a name associated with some component of work. That component of work might be
a banking transaction, an airline flight reservation, or an order for a dozen widgets. In Oracle
Tuxedo, a client program that needs work done makes a “service request.” A process called a
server performs the work described in the service request on behalf of the client, then returns the
results of its efforts back to the client. In MVS this process would be referred to as a call to a
“black box.”
In a CICS application that uses TMA TCP for CICS, a service name is passed in the data area in
an EXEC CICS LINKcommand and the results are returned in that same area. The service screens
use the terms “service name” and “remote service name.” The service name (such as,
CIC01XXYYZZ) is what the service is known as to your CICS environment and the remote service
name (such as, WITHDRAWL) is what the service is known as to Oracle Tuxedo. For simplicity, you
can make both names the same, but if naming conventions differ, you can use different names.
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PF Keys
The following table lists function keys available on various outbound service screens.
Table 4-5 Function Keys
Function Key
ENTER
PF3
Function
Process the selection code entered
Transfer to Main menu
PF5
Transfer to Browse screen
Display the previous page of records
Display the next page of records
PF7
PF8
Note: If you enter data and press PF3or PF5before pressing ENTER, the operation process is
aborted and the appropriate screen is displayed.
Insert Outbound Service Information Screen (S1)
Use this screen to insert a record into the service name file. The screen is first displayed with all
fields unprotected. Enter the required data in the appropriate fields and press ENTER. After the
data is validated and processed, the screen is re-displayed and all the fields are unprotected.
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The Outbound Service Information Screens
BEAPSVC
BEA TMA 10.0 TCP FOR CICS
INSERT OUTBOUND SERVICE INFORMATION
BEAM S1
SERVICE NAME:
________________
LOGICAL MACHINE NAME: ________________
REMOTE SERVICE NAME: ________________
SERVICE TIMEOUT(SEC): _____
SECURITY(Y/N):
_
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
SERVICE NAME
The service name as it is known to the CICS programmer.
LOGICAL MACHINE
NAME
This name is a symbolic name as it was defined on the Requester
Insert screen. It denotes the remote machine on which this
service should be processed.
REMOTE SERVICE
NAME
The name as it is known in the remote Oracle Tuxedo domain.
SERVICE TIMEOUT
SECURITY
The number of seconds to wait for timing out this service request.
The status of request-level security. Yspecifies that security is on
and Ndenotes that security is off.
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Update Outbound Service Information Screen (S2)
Use this screen to update a record from the service name file. When the screen is first displayed,
the SERVICE NAMEfield is unprotected. Enter the service name and press ENTER. The screen is
then re-displayed with the data from the requested record and the LOGICAL MACHINE NAME,
REMOTE SERVICE NAME, SERVICE TIMEOUT(SEC), and SECURITYfields are unprotected. The
following message is displayed: RECORD READY FOR UPDATE.
After the changes are validated and processed, the screen is re-displayed and the SERVICE NAME
field is unprotected.
BEAPSVC
BEA TMA 10.0 TCP FOR CICS
BEAM S2
UPDATE OUTBOUND SERVICE INFORMATION
SERVICE NAME:
________________
LOGICAL MACHINE NAME: ________________
REMOTE SERVICE NAME: ________________
SERVICE TIMEOUT(SEC): _____
SECURITY(Y/N):
_
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
SERVICE NAME
The service name as it is known to the CICS programmer.
LOGICAL MACHINE
NAME
This name is a symbolic name as it was defined on the Update
Outbound Service Information screen. It denotes the remote
machine on which this service should be processed.
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The Outbound Service Information Screens
Field Name
Description
REMOTE SERVICE
NAME
The name as it is known in the remote Oracle Tuxedo domain.
SERVICE TIMEOUT
SECURITY
The number of seconds to wait for timing out this service request.
The status of security. Yspecifies that security is on and N
denotes that security is off.
Inquire Outbound Service Information Screen (S3)
Use this screen to make an inquiry about a record from the SERVICE NAMEfile. The screen is
initially displayed with the SERVICE NAMEfield unprotected. Enter the service name and press
ENTER. The screen is re-displayed with the data from the requested record and the SERVICE NAME
field is unprotected.
BEAPSVC
BEA TMA 10.0 TCP FOR CICS
BEAM S3
INQUIRE OUTBOUND SERVICE INFORMATION
SERVICE NAME:
________________
LOGICAL MACHINE NAME: ________________
REMOTE SERVICE NAME: ________________
SERVICE TIMEOUT(SEC): _____
SECURITY(Y/N):
_
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
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Fields
Field Name
Description
SERVICE NAME
The service name as it is known to the CICS programmer.
LOGICAL MACHINE
NAME
This name is a symbolic name as it was defined on the Inquire
Outbound Service Information screen. It denotes the remote
machine on which this service should be processed.
REMOTE SERVICE
NAME
The name as it is known in the remote Oracle Tuxedo domain.
SERVICE TIMEOUT
SECURITY
The number of seconds to wait for timing out this service request.
The status of security. Yspecifies that security is on and Ndenotes
that security is off.
Delete Outbound Service Information Screen (S4)
Use this screen to delete records from the service name file. The screen is initially displayed with
the SERVICE NAMEfield unprotected. Type the service name and press ENTER. The screen is
re-displayed with the data from the record requested and all the fields protected.
The following message is displayed: TO CONFIRM DELETE, PRESS ENTER: AGAIN. After you
press enter to confirm the deletion, the screen is re-displayed and the SERVICE NAMEfield is
unprotected.
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The Outbound Service Information Screens
BEAPSVC
BEA TMA 10.0 TCP FOR CICS
DELETE OUTBOUND SERVICE INFORMATION
BEAM S4
SERVICE NAME:
________________
LOGICAL MACHINE NAME: ________________
REMOTE SERVICE NAME: ________________
SERVICE TIMEOUT(SEC): _____
SECURITY(Y/N):
_
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
SERVICE NAME
The service name as it is known to the CICS programmer.
LOGICAL MACHINE
NAME
This name is a symbolic name as it was defined on the Delete
Outbound Service Information screen. It denotes the remote
machine on which this service should be processed.
REMOTE SERVICE
NAME
The name as it is known in the remote Oracle Tuxedo domain.
SERVICE TIMEOUT
SECURITY
The number of seconds to wait for timing out this service request.
The status of security. Yspecifies that security is on and Ndenotes
that security is off.
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Browse Outbound Service Information Screen (S5)
Use this screen to browse the records in the service name file. If you access this screen from the
Main menu the first record on file is displayed at the top of the screen. If you access this screen
from the Insert, Update, Inquire, or Delete screens, the list starts with the record key received
from that screen.
To select a record for processing, enter a valid selection code. For example, to make an inquiry
about a record, enter “3”. If you enter more than one selection code, the first one is used, and the
others are ignored. After the selection code is validated and processed, the screen for that process
is displayed and the record key appears in the SERVICE NAMEfield.
BEAPSVC
BEA TMA 10.0 TCP FOR CICS
BROWSE SERVICE NAME
BEAM S5
SEL
CDE
SERVICE
NAME
LOGICAL MACHINE
NAME
REMOTE SERVICE SERVICE
NAME TIMEOUT
SEC
---
--- ---------------- ---------------- ---------------- -------
_ ________________ ________________ ________________
_ ________________ ________________ ________________
_ ________________ ________________ ________________
_ ________________ ________________ ________________
_ ________________ ________________ ________________
_ ________________ ________________ ________________
_ ________________ ________________ ________________
_ ________________ ________________ ________________
_ ________________ ________________ ________________
_ ________________ ________________ ________________
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_
_
_
_
_
_
_
_
_
_
* SELCDE = (1 -INS, 2 -UPD, 3 -INQ, 4 -DEL)
ENTER: PROCESS, PF3: MENU, PF7: PREV, PF8: NEXT
RECORD NOT FOUND
The User Connection ACCOUNT Screens
A Handler is responsible for receiving service requests from the remote Oracle Tuxedo domain.
The User Connection ACCOUNTscreens allow for dynamic manipulation of accounts allowed to
connect with a Handler when a Handler is configured with security enabled.
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The User Connection ACCOUNT Screens
PF Keys
The following table lists function keys available on various user account screens.
Table 4-6 Function Keys
Function Key
ENTER
PF3
Function
Process the selection code entered
Transfer to Main menu
PF5
Transfer to Browse screen
Display the previous page of records
Display the next page of records
PF7
PF8
Note: If you enter data and press PF3or PF5before pressing ENTER, the operation process is
aborted and the appropriate screen is displayed.
Insert User Connection ACCOUNT Screen (U1)
Use this screen to add a new Connection ACCOUNTby inserting a new record into the user file.
When the screen is first displayed, all the fields are unprotected. Type the required data as
described in the table below, then press ENTER. After the data is validated and processed, the
screen is re-displayed and all the fields are unprotected.
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BEAPUSR
BEA TMA 10.0 TCP FOR CICS
BEAM U1
INSERT USER CONNECTION ACCOUNT
ACCOUNT:
________
________
PASSWORD:
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
ACCOUNT
An eight-character ID. This name must be the same ID that is used
on the Oracle Tuxedo-side configuration. Coordinate with the
Oracle Tuxedo Administrator. Required if there is an entry in the
PASSWORDfield. Example: (CICS001A)
PASSWORD
An eight-character password. This password must be the same as
on the Oracle Tuxedo-side configuration. Coordinate with the
Oracle Tuxedo Administrator. Required if there is an entry in the
ACCOUNT IDfield. Example: (LETMEIN1)
Update User Connection ACCOUNT Screen (U2)
Use this screen to update a record on the account file. When the screen is first displayed, the
ACCOUNTfield is unprotected. Enter the account ID, and press ENTER. The screen is then
re-displayed with the data from the requested record and the PASSWORDfield is unprotected. The
following message is displayed: RECORD READY FOR UPDATE.
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The User Connection ACCOUNT Screens
After the changes are validated and processed, the screen is re-displayed and the ACCOUNTfield
is unprotected.
BEAPUSR
BEA TMA 10.0 TCP FOR CICS
BEAM U2
UPDATE USER CONNECTION ACCOUNT
ACCOUNT:
________
________
PASSWORD:
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
ACCOUNT
An eight-character ID. This name must be the same ID that is used
on the Oracle Tuxedo-side configuration. Coordinate with the
Oracle Tuxedo Administrator. Required if there is an entry in the
PASSWORDfield. Example: (CICS001A)
PASSWORD
An eight-character password. This password must be the same as
on the Oracle Tuxedo-side configuration. Coordinate with the
Oracle Tuxedo Administrator. Required if there is an entry in the
ACCOUNT IDfield. Example: (LETMEIN1)
Inquire User Connection ACCOUNT Screen (U3)
Use this screen to make an inquiry about a record from the account file. The screen is initially
displayed with the ACCOUNTfield unprotected. Enter the ACCOUNTand press ENTER. The screen
is re-displayed with the data from the requested record and the ACCOUNTfield is unprotected.
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BEAM U3
INQUIRE USER CONNECTION ACCOUNT
ACCOUNT:
________
________
PASSWORD:
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
ACCOUNT
An eight-character ID. This name must be the same ID that is used
on the Oracle Tuxedo-side configuration. Coordinate with the
Oracle Tuxedo Administrator. Required if there is an entry in the
PASSWORDfield. Example: (CICS001A)
PASSWORD
An eight-character password. This password must be the same as
on the Oracle Tuxedo-side configuration. Coordinate with the
Oracle Tuxedo Administrator. Required if there is an entry in the
ACCOUNT IDfield. Example: (LETMEIN1)
Delete User Connection ACCOUNT Screen (U4)
Use this screen to delete a record from the account file. The screen is initially displayed with the
ACCOUNTfield unprotected. Type the service name and press ENTER. The screen is re-displayed
with the data from the record requested and all the fields protected.
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The User Connection ACCOUNT Screens
The following message is displayed: TO CONFIRM DELETE, PRESS ENTER: AGAIN. After you
press enter to confirm the deletion, the screen is re-displayed and the ACCOUNTfield is
unprotected.
BEAPUSR
BEA TMA 10.0 TCP FOR CICS
BEAM U4
DELETE USER CONNECTION ACCOUNT
ACCOUNT:
________
________
PASSWORD:
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
ACCOUNT
An eight-character ID. This name must be the same ID that is used
on the Oracle Tuxedo-side configuration. Coordinate with the
Oracle Tuxedo Administrator. Required if there is an entry in the
PASSWORDfield. Example: (CICS001A)
PASSWORD
An eight-character password. This password must be the same as
on the Oracle Tuxedo-side configuration. Coordinate with the
Oracle Tuxedo Administrator. Required if there is an entry in the
ACCOUNT IDfield. Example: (LETMEIN1)
The Browse User Connection ACCOUNT Screen (U5)
Use this screen to browse the records in the account file. If you access this screen from the Main
menu the first record on file is displayed at the top of the screen. If you access this screen from
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the Insert, Update, Inquire, or Delete screens, the list starts with the record key received from that
screen.
To select a record for processing, enter a valid selection code. For example, to make an inquiry
about a record, enter “3”. If you enter more than one selection code, the first one is used, and the
others are ignored.
BEAPUSR
BEA TMA 10.0 TCP FOR CICS
BEAM U5
BROWSE USER CONNECTION ACCOUNTS
SEL
CDE
ACCOUNT
-----
----------
_
_
_
_
_
_
_
_
_
_
________
________
________
________
________
________
________
________
________
________
* SELCDE = (1: INS, 2: UPD, 3: INQ, 4: DEL)
ENTER: PROCESS, PF3: MENU, PF7: PREV, PF8: NEXT
BEG/END OF FILE
The Inbound Service Information Screens
A service is a name associated with some component of work. That component of work can be a
banking transaction, an airline flight reservation, or an order for a dozen widgets. In Oracle
Tuxedo, a client program that needs work done makes a service request. A server performs the
work described in the service request on behalf of the client, then returns the results of its efforts
back to the client. In MVS this would be referred to as a call to a “black box.”
The service screens use the terms LOCAL SERVICE NAMEand REMOTE SERVICE NAME. The
LOCAL SERVICE NAME (such as, CIC01XXYYZZ) is what the service is known as to your CICS
environment and the REMOTE SERVICE NAME(such as, WITHDRAWL) is what the service is known
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The Inbound Service Information Screens
as to Oracle Tuxedo. For simplicity, you can make both names the same; however, different
names can be used. Changes to the inbound service file are only picked up when the Handler is
restarted.
PF Keys
The following table lists function keys available on various inbound service screens.
Table 4-7 Function Keys
Function Key
ENTER
PF3
Function
Process the data entered
Transfer to Main menu
Transfer to Browse screen
Display the previous page of records
Display the next page of records
PF5
PF7
PF8
Note: If you enter data and press PF3or PF5before pressing ENTER, the operation process is
aborted and the appropriate screen is displayed.
Insert Inbound Service Information Screen (I1)
Use this screen to insert a record into the service name file. The screen is first displayed with all
fields unprotected. Enter the required data in the following fields and press ENTER. After the data
is validated and processed, the screen is re-displayed and all the fields are unprotected.
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BEAM I1
INSERT INBOUND SERVICE INFORMATION
REMOTE SERVICE NAME: ________________
LOCAL SERVICE NAME:
TRANSACTION NAME:
MAX MESSAGE SIZE:
SECURITY (Y/N):
________________
____
_____
_
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
REMOTE SERVICE
NAME
The service name as it is known in the remote Oracle Tuxedo
domain.
LOCAL SERVICE
NAME
The service name as it is known to the CICS programmer.
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The Inbound Service Information Screens
Field Name
Description
TRANSACTION NAME
The name of the CICS transaction that is started to process this
service request. This transaction is usually the transaction for the
Application Handler program which is BEAAby default.
For information about programming services without a reply, refer
to the “Programming Oracle Tuxedo Mainframe Adapter for TCP
(CICS)” section.
Note: Services sending requests using a tpacallwith the
TPNOREPLYflag set must have a unique TRANSACTION
NAMEassociated with it. Do not use the TRANSACTION
NAMEfor the Application Handler program or an error
message results.
MAX MESSAGE SIZE
SECURITY
The largest message allowed to be sent across this connection. The
maximum is 32000. This size is the size of the actual data; TMA
TCP manages additional message size through its internal headers.
The status of security. Yenables security for the specified service
and Ndisables security for the specified service.
Update Inbound Service Information Screen (I2)
Use this screen to update a record in the inbound service name file. The screen is first displayed
with the REMOTE SERVICE NAMEfield unprotected. Enter the remote service name and press
ENTER. The screen is re-displayed with the data from the requested record and the LOCAL
SERVICE NAME, TRANSACTION NAME, MAX MESSAGE SIZE, and SECURITYfields unprotected.
The following message displays: RECORD READY FOR UPDATE.
After the changes are validated and processed, the screen is re-displayed and the REMOTE
SERVICE NAMEfield is unprotected.
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BEAM I2
UPDATE INBOUND SERVICE INFORMATION
REMOTE SERVICE NAME: ________________
LOCAL SERVICE NAME:
TRANSACTION NAME:
MAX MESSAGE SIZE:
SECURITY (Y/N):
________________
____
_____
_
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
REMOTE SERVICE
NAME
The service name as it is known in the remote Oracle Tuxedo
domain.
LOCAL SERVICE
NAME
The service name as it is known to the CICS programmer.
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The Inbound Service Information Screens
Field Name
Description
TRANSACTION NAME
The name of the CICS transaction that is started to process this
service request. This transaction is usually the transaction for the
Application Handler program which is BEAAby default.
For information about programming services without a reply,
refer to the “Programming Oracle Tuxedo Mainframe Adapter for
TCP (CICS)” section.
Note: Services sending requests using a tpacallwith the
TPNOREPLYflag set must have a unique TRANSACTION
NAMEassociated with it. Do not use the TRANSACTION
NAMEfor the Application Handler program or an error
message results.
MAX MESSAGE SIZE
SECURITY
The largest message allowed to be sent across this connection. The
maximum is 32000. This is the size of the actual data; TMA TCP
manages additional message size through its internal headers.
The status of security. Yenables security for the specified service
and Ndisables security for the specified service.
Inquire Inbound Service Information Screen (I3)
Use this screen to inquire about a record in the inbound service name file. The screen is first
displayed with the REMOTE SERVICE NAMEfield unprotected. Enter the remote service name and
press ENTER. The screen is re-displayed with the data from the requested record and the REMOTE
SERVICE NAMEfield unprotected.
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BEA TMA 10.0 TCP FOR CICS
BEAM I3
INQUIRE INBOUND SERVICE INFORMATION
REMOTE SERVICE NAME: ________________
LOCAL SERVICE NAME:
TRANSACTION NAME:
MAX MESSAGE SIZE:
SECURITY (Y/N):
________________
____
_____
_
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
REMOTE SERVICE
NAME
The service name as it is known in the remote Oracle Tuxedo
domain.
LOCAL SERVICE
NAME
The service name as it is known to the CICS programmer.
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The Inbound Service Information Screens
Field Name
Description
TRANSACTION NAME
The name of the CICS transaction that is started to process this
service request. This transaction is usually the transaction for the
Application Handler program which is BEAAby default.
For information about programming services without a reply, refer
to the “Programming Oracle Tuxedo Mainframe Adapter for TCP
(CICS)” section.
Note: Services sending requests using a tpacallwith the
TPNOREPLYflag set must have a unique TRANSACTION
NAMEassociated with it. Do not use the TRANSACTION
NAMEfor the Application Handler program or an error
message results.
MAX MESSAGE SIZE
SECURITY
The largest message allowed to be sent across this connection. The
maximum is 32000. This is the size of the actual data; TMA TCP
manages additional message size through its internal headers.
The status of security. Yspecifies that security is on and Ndenotes
that security is off.
Delete Inbound Service Information Screen (I4)
Use this screen to delete a record in the inbound service name file. The screen is first displayed
with the REMOTE SERVICE NAMEfield unprotected. Enter the remote service name and press
ENTER. The screen is re-displayed with the data from the record requested and all fields protected.
The following message displays: TO CONFIRM DELETE, PRESS ENTER AGAIN. After you press
ENTERto confirm the deletion, the screen is re-displayed and the REMOTE SERVICE NAMEfield
is unprotected.
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BEA TMA 10.0 TCP FOR CICS
BEAM I4
DELETE INBOUND SERVICE INFORMATION
REMOTE SERVICE NAME: ________________
LOCAL SERVICE NAME:
TRANSACTION NAME:
MAX MESSAGE SIZE:
SECURITY (Y/N):
________________
____
_____
_
ENTER: PROCESS, PF3: MENU, PF5: BROWSE
Fields
Field Name
Description
REMOTE SERVICE
NAME
The service name as it is known in the remote Oracle Tuxedo
domain.
LOCAL SERVICE
NAME
The service name as it is known to the CICS programmer.
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The Inbound Service Information Screens
Field Name
Description
TRANSACTION NAME
The name of the CICS transaction that is started to process this
service request. This service request is usually the transaction for
the Application Handler program. For information about
programming services without a reply, refer to the “Programming
Oracle Tuxedo Mainframe Adapter for TCP (CICS)” section.
WARNING: Services sending requests using a tpacall
with the TPNOREPLYflag set must have a
unique TRANSACTION NAMEassociated with
it. Do not use the TRANSACTION NAMEfor
the Application Handler program or an error
message results.
MAX MESSAGE SIZE
SECURITY
The largest message allowed to be sent across this connection. The
maximum is 32000. This is the size of the actual data; TMA TCP
manages additional message size through its internal headers.
The status of security. Yspecifies that security is on and Ndenotes
that security is off.
The Browse Inbound Service Screen (I5)
Use this screen to browse the records in the inbound service name file. If you access this screen
from the Main menu, the first record on file is displayed at the top of the screen. If you access this
screen from the Insert, Update, Inquire, or Delete screens, the list starts with the record key
received from that screen.
To select a record for processing, enter a valid selection code. For example, to make an inquiry
about a record, enter “3”. If you enter more than one selection code, the first one is used, and the
others are ignored. After the selection code is validated and processed, the screen for that process
is displayed and the record key appears in the REMOTE SERVICE NAMEfield.
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BROWSE INBOUND SERVICE
BEAM I5
SEL REMOTE SERVICE
LOCAL SERVICE
NAME
TRAN MAXM
NAME SIZE SEC
CDE
NAME
--- ---------------- ---------------- ---- ----- ---
_ ________________ ________________ ____ _____ _
_ ________________ ________________ ____ _____ _
_ ________________ ________________ ____ _____ _
_ ________________ ________________ ____ _____ _
_ ________________ ________________ ____ _____ _
_ ________________ ________________ ____ _____ _
_ ________________ ________________ ____ _____ _
_ ________________ ________________ ____ _____ _
_ ________________ ________________ ____ _____ _
_ ________________ ________________ ____ _____ _
* SELCDE = (1 -INS, 2 -UPD, 3 -INQ, 4 -DEL)
ENTER: PROCESS, PF3: MENU, PF7: PREV, PF8: NEXT
RECORD NOT FOUND
The Handler Configuration Screens
A Handler is responsible for receiving service requests from the remote Oracle Tuxedo domain.
The Handler Configuration screens allow for dynamic manipulation of the configuration used by
all Handler programs in the system.
Note: To apply changes that have been made to the Handler Configuration file, you must restart
the Handler.
PF Keys
The following table lists the function keys available on various user account screens.
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The Handler Configuration Screens
Table 4-8 Function Keys
Function Key
ENTER
Function
Process the data entered
Transfer to Main menu
PF3
Note: If you enter data and press PF3before pressing ENTER, the operation process is aborted
and the appropriate screen is displayed.
Update Handler Configuration Screen (H2)
Use this screen to update the configuration record on the user file. If a record does not exist, one
is inserted into the user file. When the screen first displays, all fields are unprotected. After the
changes are validated and processed, the screen is re-displayed.
BEAPUSR
BEA TMA 10.0 TCP FOR CICS
BEAM H2
UPDATE HANDLER CONFIGURATION
SECURITY:
Y
99
20
30
5
MULTIPLEX COUNT:
MIN TIME (MILLISECS):
MAX TIME (MILLISECS):
DELTA TIME (MILLISECS):
IDLE TIME (SECONDS):
0
ENTER: PROCESS, PF3: MENU
UPDATE COMPLETED
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Fields
Field Name
Description
SECURITY
The status of gateway security. Ydenotes that security is activated
and Ndenotes that security is not activated. If this field is set to N,
the ACCOUNTand PASSWORDfields are not verified prior to
establishing a connection.
MULTIPLEX CNT
MIN TIME
The number of concurrent incoming service requests for each
Handler.
The minimum length of time (in milliseconds) for a socket read to
wait for data to be processed.
MAX TIME
The maximum length of time (in milliseconds) for a socket read to
wait for data to be processed.
DELTA TIME
IDLE TIME
The time increase (in milliseconds) from MIN TIMEto MAX
TIME.
The amount of time in seconds a Handler is idle before it
terminates.
Inquire Handler Configuration Screen (H3)
Use this screen to make an inquiry about the configuration record from the user file. The screen
is displayed with the data from the requested record and all fields are protected.
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The Handler Configuration Screens
BEAPUSR
BEA TMA 10.0 TCP FOR CICS
INQUIRE HANDLER CONFIGURATION
BEAM H3
SECURITY:
Y
99
20
30
5
MULTIPLEX COUNT:
MIN TIME (MILLISECS):
MAX TIME (MILLISECS):
DELTA TIME (MILLISECS):
IDLE TIME (SECONDS):
0
ENTER: PROCESS, PF3: MENU
Fields
Field Name
Description
SECURITY
The status of gateway security. Ydenotes that security is activated
and Ndenotes that security is not activated. If this field is set to N,
the ACCOUNTand PASSWORDfields are not verified prior to
establishing a connection.
MULTIPLEX CNT
MIN TIME
The number of concurrent incoming service requests for each
Handler.
The minimum length of time (in milliseconds) for a socket read to
wait for data to be processed.
MAX TIME
The maximum length of time (in milliseconds) for a socket read to
wait for data to be processed.
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Field Name
Description
DELTA TIME
The time increase (in milliseconds) from MIN TIME to MAX
TIME.
IDLE TIME
The amount of time in seconds a program is idle before it
terminates.
Dynamically Configuring TMA TCP for CICS
Dynamic configuration means that new configuration information affects currently running
Handlers or Requesters without shutting them down. The new configuration information also
affects Handlers and Requesters that are started after the information is entered. You can make
the following changes to the TMA TCP for CICS gateway configuration dynamically:
z Modifying Outbound Services
z Modifying User Connection Accounts
z Modifying Connections
z Deleting Requester LMIDs
All other configuration tasks are not dynamic, including Inbound Service Information and
Handler Configuration. To process configuration information in these cases, the corresponding
Requesters and Handlers must be shut down.
Modifying Outbound Services
You can dynamically configure outbound services by inserting a new record into the service
name file, modifying an existing record in the service name file, or deleting a record in the service
name file. Use the appropriate maintenance screens to accomplish the necessary task, S1 to insert,
S2 to update, or S4 to delete. For field definitions, refer to the “The Outbound Service
Information Screens” section.
Modifying User Connection Accounts
You can dynamically configure User Connection Accounts and enable accounts to connect to
Handlers by inserting a new account into the user account file, modifying an existing user
account, or deleting a user account. Use the appropriate maintenance screens to accomplish the
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Administering the Gateways
necessary task, U1 to insert, U2 to update, or U4 to delete. For field definitions, refer to the “The
User Connection ACCOUNT Screens” section.
Note: Changes to the User Connection Accounts do not affect Handlers that are currently
connected, but only Handlers that connect after the change is made.
Modifying Connections
You can dynamically configure the status of a connection. Using the Update Connection screen
(C2), you can enable, disable, or abort the connection for a given LMID. Dynamically configuring
the status of a connection has an immediate effect on the corresponding Requesters. For field
definitions, refer to the “The Connection Screens” section.
Note: Because the data in the Update Connection screen is transient, setting the LMIDstatus to
disable does not persist after the CICS region is shut down and then restarted. The
Requester file, however, is persistent.
Deleting Requester LMIDs
Each instance of the Requester is given a logical machine name (LMID). You can give a Requester
any unique LMIDthat is meaningful to you. Every service name is associated with one or more
LMIDs. This method allows the Requester to identify which remote machine is responsible for a
particular service. You can dynamically delete an LMIDusing the Update Requester screen (R2).
This dynamic change only affect Pre-requesters immediately.
Note: Requesters that are currently running do not read the information in the requester file and
are not affected by this dynamic change.
Administering the Gateways
Oracle Tuxedo has a set of tmadminand dmadmincommands for the administration of the TMA
TCP gateways. For detailed information about these commands, refer to the Oracle Tuxedo
documentation.
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C H A P T E R
5
Programming Oracle Tuxedo
Mainframe Adapter for TCP (CICS)
The following subsections identify issues that CICS programmers should be aware of when they
develop or modify application programs that operate with Oracle Tuxedo Mainframe Adapter for
TCP (CICS) (hereafter referenced as TMA TCP for CICS):
z Client Application Considerations
z Server Application Considerations
Client Application Considerations
The following sections identify issues that CICS programers should be aware of when they
develop or modify application programs that interoperate with TMA TCP for CICS as clients.
To make requests to remote Oracle Tuxedo domains from CICS application programs, use the
EXEC CICS LINKcommand. The exact layout of the request/response data area is discussed in a
later section.
Buffer Layout Issues
The layout of the data buffer sent between CICS and Oracle Tuxedo should be agreed upon by
the CICS applications programmer, the Oracle Tuxedo applications developer, and the Oracle
Tuxedo administrator to ensure consistency and proper configuration. There are no limitations on
the CICS programmer concerning native COBOL or C data types.
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Making Calls from a CICS Client Program
To make a service call from a CICS program to a remote Oracle Tuxedo domain, make an EXEC
CICS LINKcall to the Pre-requester. The service you want to access must be configured by the
Oracle TMA Administrator, but from a programming point of view the LINKcall is all you need.
The following COBOL record is in the COBOL copybook client.cbl.
Listing 5-1 COBOL Record
01 REQUEST-RECORD.
05 REQUEST-HEADER.
10 DATALEN
PIC S9(08) COMP.
PIC X(16).
10 SVCNAME[16]
10 REQUESTCD
10 RETURNCD
PIC S9(08) COMP.
PIC S9(08) COMP.
PIC S9(08) COMP.
10 REQRETURNCD
05 REQUEST-DATA.
10 DATA-AREA
PIC X(DATALEN).
The layout of the structure in C that must be passed in the LINKcall is shown in Listing 5-2. The
following C structures are in the clienth.hINCLUDEfile.
Listing 5-2 C Structures
typedef struct CLIENTHDR
{
long DataLen;
char SvcName[16];
long RequestCd;
long ReturnCd;
long ReqReturnCd;
} CLIENTHDR;
/* THE LEN OF THE DATA FROM AND TO APPL */
/* THE SERVICE NAME */
/* THE REQUEST COMMAND FROM THE APPL */
/* THE RETURN CODE TO THE APPL */
/* THE RETURN CODE FROM THE PREQ AND REQ */
typedef struct CMAREA
{
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Client Application Considerations
CLIENTHDR CltHdr;
/*HEADER */
char Request_data[MAX_DATA_LENGTH]; /* REQUEST DATA */
} CMAREA;
The variables in the previous COBOL and C examples are defined as follows.
DataLen
The length of the data in the Request_datafield.
SvcName
The service request name (ask the administrator for the names).
RequestCd
A predefined numeric value that indicates the type of call this is.
BEA_REQUEST_NORESPONSE- Value is 7. A No Reply Service Request. In this case the
request is sent over to Oracle Tuxedo for the service to be performed, but no response data
is sent back.
BEA_REQUEST_RESPONSE- Value is 5. A Request/Response Request. A request is sent to
Oracle Tuxedo and a response is expected back.
Table 5-1 Request Codes
Code
Value
+5.
BEA-REQUEST-RESPONSE
BEA-REQUEST-NORESPONSE
+7.
ReturnCd
This code is the return code from the CICS Requester.
All return codes are listed in the following table. Notify the administrator if any of the
return codes indicate a processing or network problem.
Note: For a complete description of these codes, refer to the “Codes Returned to a CICS
Client Program” section in Appendix A.
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Table 5-2 Return Codes
Code
Value
+0.
BEA-NORMAL
BEA-ERR-LENGTH
+1.
BEA-ERR-MISSING-SRV-NAME
BEA-ERR-REQ-CODE
BEA-ERR-SRC-NOT-FOUND
BEA-ERR-READ-UMT
BEA-ERR-SERVER
+2.
+3.
+4.
+5.
+6.
BEA-ERR-POST
+7.
BEA-ERR-CANCEL
+8.
BEA-ERR-WAIT
+9.
BEA-ERR-LMID-NOT-FOUND
BEA-ERR-START-TRANSID
BEA-ERR-DISABLE-ACQUIRING
BEA-ERR-DISABLE-NOT-FND
BEA-ERR-DISABLE-NOT-RESPOND
BEA-ERR-DISABLE
+10.
+11.
+12.
+13.
+14.
+15.
+16.
+17.
+18.
+19.
+20.
+21.
BEA-ERR-ALLOC
BEA-ERR-TIMEOUT
BEA-ERR-TSQ
BEA-ERR-SOCKET-FAILURE
BEA-ERR-PROTOCOL
BEA-ERR-QUEUE-OVERFLOW
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Client Application Considerations
ReqReturnCd
This code is the return code from the Oracle Tuxedo Domain. See the Tuxedo
documentation for a complete list of Tuxedo error codes
Request_data
This area is the area where request data gets placed and in which your returned data
arrives. The length depends on how long this particular service is configured. Check with
the administrator for each service. The maximum value is 32000.
Examples
The following sample is an example of a COBOL CICS client program.
Listing 5-3 COBOL CICS Client Program Example
IDENTIFICATION DIVISION.
PROGRAM-ID. TESTCLN.
ENVIRONMENT DIVISION.
CONFIGURATION SECTION.
SOURCE-COMPUTER. IBM-3090.
OBJECT-COMPUTER. IBM-3090.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 FILLER PIC X(32) VALUE 'SAMPLE COBOL CICS CLIENT PROGRAM'.
01 MSG-AREA.
05 M-DATA
05 M-RCDE
PIC X(42) VALUE SPACES.
PIC Z(05) VALUE ZEROS.
01 WS-COMMAREA.
05 WC-DATALEN
05 WC-SVCNAME
PIC S9(9) COMP-4.
PIC X(16).
05 WC-REQUESTCD PIC S9(9) COMP-4.
05 WC-RETURNCD PIC S9(9) COMP-4.
05 WC-REQRETURNCD PIC S9(9) COMP-4.
05 WC-REQDATA
LINKAGE SECTION.
01 DFHCOMMAREA
PROCEDURE DIVISION.
A100-ENTRY.
PIC X(14).
PIC X(14).
MOVE +14
TO WC-DATALEN.
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MOVE 'TOLOWER'
MOVE +5
TO WC-SVCNAME.
TO WC-REQUESTCD.
MOVE 'THIS IS A TEST' TO WC-REQDATA.
EXEC CICS LINK PROGRAM('BEAPRERQ')
COMMAREA(WS-COMMAREA)
LENGTH(LENGTH OF WS-COMMAREA)
END-EXEC.
IF RETURNCD = 0
MOVE 'SUCCESSFUL CALL, RETURN DATA IS IN WC-DATA'
TO MSG-DATA
ELSE
MOVE 'PROCESS ERROR OCCURRED, RETURN CODE EQUAL '
TO MSG-DATA
MOVE RETURNCD TO M-RCDE
END-IF.
EXEC CICS SEND TEXT FROM(MSG-AREA) LENGTH(47)
ERASE TERMINAL FREEKB CURSOR(0)
END-EXEC.
A200-EXIT.
EXEC CICS RETURN END-EXEC.
The following is an example of a C CICS client program.
Listing 5-4 C CICS Client Program Example
long resp, resp2;
unsigned short int lmsg;
struct CMAREA carea;
carea.CltHdr.DataLen = strlen(sendbuf);
memcpy(carea.CltHdr.SvcName, “ECHO”, 4);
carea.CltHdr.RequestCd = BEA_REQUEST_RESPONSE;
memcpy(carea.Request_data, “This is a test”, 14);
lmsg=sizeof(carea);
/* Use the name defined during installation */
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Client Application Considerations
EXEC CICS LINK PROGRAM("PREREQ")
COMMAREA(&carea)
LENGTH(lmsg) RESP(resp) RESP2(resp2);
if(carea.CltHdr.ReturnCd || carea.CltHdr.ReqReturnCd)
process error;
else
successful call, returned data is in Request_data;
Note: C Programmers, do not include the NULL terminator on any strings. In the previous
example, the memxxxcalls were used instead of the strxxxcalls. This example is typical
when using C and CICS together. For more information see your C for CICS
documentation.
Error Handling
You may encounter the following three types of errors while using TMA TCP for CICS:
z Gateway errors (communications problems)
z MVS or CICS errors
z Application errors
The following subsections explain how TMA TCP handles these different kinds of errors.
Gateway Errors
When local or remote gateway errors occur they are logged in the Oracle Tuxedo ULOGfile on the
remote Oracle Tuxedo node and in the BEALOGfile (a TD Queue defined during installation)
within the CICS region. All associated service requests fail and if the TMA gateways are able to
communicate with each other, error messages are communicated between them.
MVS or CICS Errors
For requests originating in the Oracle Tuxedo domain, if the remote target system does not make
it possible for TMA TCP for CICS to detect particular types of failure, the TMA TCP gateway
(the Oracle Tuxedo domain) blocking time-out parameter can be tuned to provide timely
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detection of problems. This configuration parameter is set in the remote TMA TCP gateway
system; discuss any changes you want to make with the administrator of that system.
Problems with requests that originate in the CICS region are also logged to the BEALOGfile.
Additionally, time-out periods for these requests can be tuned using the TMA TCP for CICS
administration tool.
For more information about the blocking time-out parameter, refer to the Oracle TMA TCP
gateway User Guide.
Application Errors
If an error occurs that makes the Handler unable to execute a certain program (such as, the
program does not exist or is disabled) the Handler sends a message back to the TMA TCP
gateway gateway. If any other type of error occurs within an application program and the Handler
is not notified of the problem, a time-out message is sent from the Handler back to the remote
gateway.
For requests originating with CICS, Oracle Tuxedo returns information about specific problems,
if possible. If there are network problems that prohibit the transmission of data, the request
receives a timeout error.
Server Application Considerations
The following subsections identify issues that CICS programmers should be aware of when they
develop or modify application programs that interoperate with TMA TCP for CICS as servers.
A CICS application program that processes requests originating from a remote Oracle Tuxedo
domain is written like a CICS application program that is invoked with the CICS LINKcommand.
The CICS programs that work best for satisfying Oracle Tuxedo requests are the ones that
perform a certain operation and return information to the caller. The CICS services requested by
a Oracle Tuxedo client program must entail a single request/response scenario.
CICS service programs that are called from Oracle Tuxedo clients must be careful if they give up
control, as when performing an EXEC CICS XCTLoperation. To ensure that the response data is
returned to the client, chaining programs must pass the original COMMAREAduring the XCTL so
that it may be RETURNed to the TMA TCP for CICS Handler by the final program in the chain.
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Server Application Considerations
Programming Services with a Response
Service programs expected to send a response to the client use the EXEC CICS LINKcommand
to execute. The COMMAREAoption contains a pointer to the raw data; therefore, no header is sent.
As a result, the request data is available to the service programs in the COMMAREA.
Programming Services without a Response
Service programs that do not send replies back to the requester execute using transactions started
by the EXEC CICS STARTcommand. The FROMoption of this command contains a pointer to the
raw data; therefore, no header is sent. As a result, such service programs must use an EXEC CICS
RETRIEVEcommand with the SEToption containing a pointer to the raw data.
Note: Define a unique transaction for each service that does not send a reply and enter the name
of that transaction in the TRANSACTION NAMEfield of the Inbound Service Information
screen for the corresponding service.
An example of a service sending no reply is one requested by a client using a tpacall with the
TPNOREPLYflag set.
Modifying the Length of the Return Message
You can manage the actual size of the return message the system sends over the gateway on a per
request basis. This is different than simply limiting the message size for a particular service using
the MAX MESSAGEfield of the Inbound Service Information screen. To limit the size of the return
message per request, the service program must ADDRESSthe TWA using the copybook or the
include file delivered in the "YOURHLQ".BEATCPC.INCLUDEfile.
Modifying Return Message Lengths for C Programs
To modify the return message length on a per request basis, specify the message length in the
rtnMsgSizefield in a TWA_CONNECTstructure defined in the TWAINCLfile.
Modifying Return Message Lengths for COBOL Programs
To modify the return message length on a per request basis, specify the message length in the
RTN-MSG-SIZEfield in a TWA_CONNECTrecord layout in the copybook TWACOPY.
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A P P E N D I X A
Error and Informational Messages
The following topics describe TMA TCP for CICS messages:
z Messages Returned to the Remote Gateway
z Messages Written to the TMA TCP for CICS Log
z Codes Returned to a CICS Client Program
z Informational Process Messages
z Data Field Error Messages
z System Error Messages
Messages Returned to the Remote Gateway
Most of the messages produced from Oracle Tuxedo Mainframe for TCP (CICS) (hereafter
referenced as TMA TCP for CICS) are sent back to the remote TMA TCP gateway and written
to the ULOGon that system.
Message
Description
BEA TMA TCP for CICS server
The Handler process has been started.
process initiated.
Welcome to BEA TMA TCP for
The connect process has completed successfully.
MVS/CICS.
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Error and Informational Messages
Message
Description
Goodbye.
The disconnect process has completed successfully.
The requested service was not found in the inbound service name file.
Service svcname not found.
Client has already logged
in.
A client process has attempted to establish a connection when a
connection already existed. (The connection request protocol was
resent.)
Client has not logged in.
A client process has made a request to the TMA TCP for CICS
gateway but has not yet established a login connection. (The
connection request protocol was never sent.)
BEA TMA TCP MVS/CICS server
is active.
This message is returned to the remote Tuxedo gateway when a PING
request is sent to the TMA TCP for CICS gateway from the tmadmin
administration tool.
Invalid password.
The password specified in the TMA TCP gateway configuration file
does not match the password specified when the CICS supplied
listener was configured.
Invalid client account.
The account code specified in the TMA TCP gateway configuration
file does not match the account code specified when the CICS
supplied listener was configured.
Sorry-System Resource is
protected by CICS.
The mode command was executed through the tmadmin tool on
Tuxedo and the administrative request specified is not available in the
CICS region.
Data too long, please check
message header.
A message received is larger than the maximum allowable message
length.
Data too short, please check
message header.
A message was received and was smaller than the smallest expected
message.
Message header is incorrect.
An invalid protocol header was received. This can occur if there was
a transmission error or if a message was sent to the gateway without
having gone through the TMA TCP gateway gateway on the remote
Tuxedo node.
This transaction is not
defined in CICS.
A CICS transaction code was mapped to a service name in the TMA
TCP gateway configuration file for a transaction code that is
unknown to CICS.
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Messages Written to the TMA TCP for CICS Log
Message
Description
Application Handler
abnormally terminated.
The Application Handler terminated prior to completing the service
request. This message usually occurs when a service has timed out.
Verify that you are not expecting a reply from a service that does not
send one.
Requested Service timed out.
The requested service did not complete within the time provided in
the message header from the remote Tuxedo gateway.
Unable to start another
session.
The Handler is already processing the maximum number of service
requests configured as the multiplex count.
Unable to start transaction.
A CICS error occurred attempting to start the transaction.
The Application Handler encountered a CICS error.
Error occurred in
Application Handler.
Security error occurred in
Application Handler.
The Application Handler encountered a CICS security error.
Messages Written to the TMA TCP for CICS Log
Occasionally, messages are written directly to the CICS log configured specifically for TMA
TCP for CICS. For more information about configuring the CICS log, refer to the “Configuring
and Administering Oracle TMA TCP for CICS” section.
Message
Description
Goodbye.
The disconnect process has completed successfully.
Service svcname not found.
The requested service was not found in the inbound service name
file.
Client has already logged in.
Client has not logged in.
A client process has attempted to establish a connection when a
connection already existed. (The connection request protocol was
resent.)
A client process has made a request to the TMA TCP for CICS
gateway but has not yet established a login connection. (The
connection request protocol was never sent.)
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Error and Informational Messages
Message
Description
Invalid password.
The password specified in the TMA TCP gateway configuration
file does not match the password specified when the CICS supplied
listener was configured.
Invalid client account.
The account code specified in the TMA TCP gateway
configuration file does not match the account code specified when
the CICS supplied listener was configured.
Data too long, please check
message header.
A message received is larger than the maximum allowable
message length.
Application Handler
abnormally terminated.
The Application Handler terminated prior to completing the
service request. This message usually occurs when a service has
timed out. Verify that you are not expecting a reply from a service
that does not send one.
Requested Service timed out.
The requested service did not complete within the time provided in
the message header from the remote Tuxedo gateway.
Unable to start another
session.
The Handler is already processing the maximum number of service
requests configured as the multiplex count.
Unable to start transaction.
A CICS error occurred attempting to start the transaction.
The Application Handler encountered a CICS error.
Error occurred in Application
Handler.
Security error occurred in
Application Handler.
The Application Handler encountered a CICS security error.
The DNS lookup function failed for the given host name.
DNS Lookup Failed for
HOST(host) ERRNO(errno)
Dotted IP address (address)
malformed.
There was an erroneous IP address passed into the
ConvertAddressfunction.
Invalid data pointer
(pointer).
There was an invalid data buffer pointer passed into the
BufferHeaderfunction.
Socket CONNECT Failed.
ERRNO=errno
The Socket CONNECTfunction failed.
fcntl(F_SETFL) Failed.
The file control function with the F_SETFLoption failed in the
ERRNO=errno FLAGS=hexcode
connect socket function.
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Messages Written to the TMA TCP for CICS Log
Message
Description
fcntl (F_GETFL) Failed.
ERRNO=errno
The file control function with the F_GETFLoption failed in the
connect socket function.
Socket CREATE Failed.
ERRNO=errno
The Socket CREATEfunction failed.
The Socket WRITEfunction failed.
The Socket initialization function failed.
WRITE on Socket Failed.
ERRNO=errno
initapi Failed. ERRNO=errno
RETRIEVE Failed. RESP=hexcode
RESP2=hexcode
The CICS RETRIEVEcommand failed when it tried to access the
buffer passed to the TMA TCP gateway Handler from the Sockets
for CICS Listener.
Load Control Failed.
A CICS LOAD PROGRAMcommand failed. The Handler was
RESP=hexcode RESP2=hexcode
unable to load the control programs OTPCICS01or OTPCICS02.
Start Task Failed.
A CICS STARTcommand failed when the Handler tried to issue a
RESP=hexcode RESP2=hexcode
STARTon the specified user program.
Link Program Failed.
A CICS LINKcommand failed. The Handler was unable to LINK
RESP=hexcode RESP2=hexcode
to the specified user program.
GETMAIN Failed. RESP=hexcode
RESP2=hexcode
The CICS GETMAINcommand failed.
Take Socket Failed.
ERRNO=errno
The TMA TCP Handler was unable to take control of the TCP/IP
socket.
Error on Select. ERRNO=errno
The Sockets SELECTfunction failed.
Read on Socket Failed.
ERRNO=errno
An error was encountered while attempting to read from the active
socket.
Socket SEND Failed. RC=rc
ERRNO=errno
An error was encountered while issuing a send over the active
socket.
Handler connected
successfully.
The client request is allowed because the account and password
codes are authorized to use the TMA TCP gateway.
BEA TMA TCP Server CTOS is
The TMA TCP gateway Handler is shutting down.
shutting down.
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Error and Informational Messages
Message
Description
Verifying User Account.
The Handler is verifying that the account and password codes
supplied by TMA TCP gateway on the remote Tuxedo gateway are
valid.
Handler initialization
complete.
The TMA TCP Handler has successfully initialized.
Normal shutdown requested, x
requests pending.
The TMA TCP Handler shuts down after the currently pending
requests complete.
Handler exceeded maximum idle
time.
The TMA TCPHandler has exceeded the configured IDLE TIME.
BEA TMA TCP Handler is
The TMA TCP Handler is shutting down.
shutting down.
Client disconnected.
The client has been disconnected from the TMA TCP Handler.
Read of file failed,
resp(hexcode)
A CICS READcommand failed.
Freemain did not work,
resp(hexcode)
A CICS FREEMAINcommand failed.
A CICS GETMAIN(SHARED)command failed.
A CICS DELETEcommand failed.
Getmain shared failed:
resp(hexcode)
Delete from file failed,
resp(hexcode)
Write to file failed,
resp(hexcode)
A CICS WRITEcommand failed.
Rewrite of file failed,
resp(hexcode)
A CICS REWRITEcommand failed.
A CICS READ(UPDATE)command failed.
Read(update) of file failed,
resp(hexcode)
Unauthorized Client Rejected.
The client request are not allowed because the account and/or
password codes are not authorized.
deleteq ts did not work,
resp(hexcode)
A CICS DELETEQ TScommand failed.
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Codes Returned to a CICS Client Program
Message
Description
Unable to start transaction
A CICS error occurred attempting to start the transaction.
Security Violation: Invalid
user for this transaction
The user ID sent with a request by the client does not match the
user ID set in the mainframe security for this transaction.
The Handler is designed to run
in the background.
A user has attempted to start the Handler from a terminal.
The appHandler is designed to
run in the background.
A user, from a terminal, has attempted to start the transaction that
initiates the Application Handler.
App Handler received corrupted
header, exiting.
The Application Handler is terminating on initialization because
there is a problem with the header it received. This would occur,
for example, if the transaction for the Application Handler was
given in the Inbound Service Information screen as the transaction
to start a service with no reply.
opcode is not CONNECT on
connection.
The Requester has received a reply that should be the
acknowledgment of a connection request; however, the message
does not contain the correct opcode.
Trying connection, but already
connected.
The Requester has received a reply containing an opcode
indicating a response to a connection request; however, the
connection already exists.
Read on sockets failed.
Connection closed by other
side.
The Handler terminated because the socket status indicated that the
client side had closed the connection.
LMID is disabled. Auto
enabling LMID ,LMID name>
The pre-requester is dynamically enabling an LMID which is
disabled. This message will be displayed only when the AUTO
ENABLE option is set to E.
Codes Returned to a CICS Client Program
The following codes are returned to a CICS client program on return from a LINK to TMA TCP.
For system level problems, please notify your CICS administrator.
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Error and Informational Messages
Message
Description
BEA_NORMAL
Value 0
Successful Return From Service Call.
BEA_ERR_LENGTH
Value 1
There was an error regarding the length of the message sent or the
length value specified.
BEA_ERR_MISSING_SRV_NAME
BEA_ERR_REQ_CODE
Value 2
A service request was made but no service name was provided.
Value 3
A service call was made with an invalid or missing request code.
BEA_ERR_SRC_NOT_FOUND
Value 4
The service that was called cannot be found in the outbound service
table.
BEA_ERR_READ_UMT
BEA_ERR_SERVER
Value 5
Check the FCT entry for the CONNECTIONSdataset.
Value 6
There was a problem accessing the Requester. Check that it is
enabled.
BEA_ERR_POST
Value 7
A CICS Post error occurred in TMA TCP.
BEA_ERR_CANCEL
Value 8
A CICS Cancel error occurred in TMA TCP.
BEA_ERR_WAIT
Value 9
A CICS Wait error occurred in TMA TCP.
BEA_ERR_LMID_NOT_FOUND
BEA_ERR_START_TRANSID
BEA_ERR_DISABLE_ACQUIRING
Value 10
The service name provided specified a non-existent LMID.
Value 11
A CICS STARTerror occurred in TMA TCP.
Value 12
There was a problem getting an LMIDto use for this service request.
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Codes Returned to a CICS Client Program
Message
Description
BEA_ERR_DISABLE_NOT_FND
Value 13
The service name provided specifies an invalid LMIDor is missing
the LMID.
BEA_ERR_DISABLE_NOT_RESPOND
BEA_ERR_DISABLE
Value 14
The Requester for handling this service name is not responding.
Value 15
The LMIDassociated with the requested service is not enabled.
BEA_ERR_ALLOC
Value 16
The Pre-requester was unable to allocate the memory necessary to
process a request.
BEA_ERR_TIMEOUT
Value 17
The Pre-requester has timed out the request. This could occur either
during processing by the Pre-requester, before the request is sent, or
because the Pre-requester did not receive a response in time.
BEA_ERR_TSQ
Value 18
The Pre-requester was unable to write the request to the appropriate
TS queue.
BEA_ERR_SOCKET_FAILURE
Value 19
The Requester closed a socket because the socket was in a state
inconsistent with the requested operation.
BEA_ERR_PROTOCOL
Value 20
The Requester closed a socket because the session data was corrupt.
BEA_ERR_QUEUE_OVERFLOW
Value 21
The Requester has aborted a request because the pending request
queue for the Requester is too full.
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Error and Informational Messages
Informational Process Messages
Message
Description
Action
"RECORD READY FOR
UPDATE"
The record selected is ready to
be updated.
Make the changes and press ENTERto
process.
"UPDATE COMPLETED"
The changes made to the record Select another record to update, or press PF3
selected for update have been
processed.
or PF5.
"TO CONFIRM DELETE,
PRESS ENTER:AGAIN"
The record selected is ready to
be deleted.
Press ENTERto delete the selected record of
press PF3or PF5to abort the delete.
"DELETE COMPLETED"
"INQUIRE COMPLETED"
"INSERT COMPLETED"
The record selected for delete
has been deleted.
Select another record to delete, or press PF3or
PF5.
The record selected for inquiry
has been processed.
Select another record to inquiry, or press PF3
or PF5.
The record entered has been
inserted into the file.
Enter another record, or press PF3or PF5.
Data Field Error Messages
Message
Description
Action
"INVALID FUNCTION KEY,
OPTIONS=(ENTER:,
PF3:)"
The PFKeypressed is not valid in Press a valid PFKey. See OPTIONS=.
this operation.
"INVALID FUNCTION KEY,
OPTIONS=(ENTER:, PF3:,
PF5:)"
The PFKeypressed is not valid in Press a valid PFKey. See OPTIONS=.
this operation.
"INVALID FUNCTION KEY,
OPTIONS=(ENTER:, PF3:,
PF7:, PF8:)"
The PFKeypressed is not valid in Press a valid PFKey. See OPTIONS=.
this operation.
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Data Field Error Messages
Message
Description
Action
"INVALID LOGICAL
MACHINE NAME"
The LOGICAL MACHINE NAME
entered is not valid.
Enter a valid INVALID LOGICAL
MACHINE NAME(i.e., LMIDNJ). Must
not start with a space, null, or
underscore.
"INVALID HOST ADDRESS"
The HOST ADDRESSentered is not Enter a valid HOST ADDRESS(i.e.,
valid.
1234.1234.99).Must not start with
a space, null, or underscore.
"HOST ADDRESS or DNS
NAME REQUIRED"
Neither the HOST ADDRESSnor
the DNS NAMEhave been entered. DNS NAME.
Enter either a valid HOST ADDRESSor
"CANNOT HAVE BOTH HOST
ADDRESS AND DNS NAME"
Both HOST ADDRESSand DNS
NAMEhave been entered.
Enter either a valid HOST ADDRESSor
DNS NAME.
"INVALID MULTIPLEX
COUNT OPTIONS=(1-99)"
The MULTIPLEX COUNTentered Enter a valid number for MULTIPLEX
is not valid. COUNT.
"INVALID MAX
CONNECTIONS
The MAX CONNECTIONSentered Enter a valid number for MAX
is not valid.
CONNECTIONS.
OPTIONS=(1-99)"
"TRAN CODE INVALID FOR
LMID TYPE (I IMS, T
TCP)"
A START TRAN CODEhas been
entered and the LMID TYPEis not change the LMID TYPEto CICS.
CICS.
Remove the START TRAN CODEor
"QUEUE NAME REQUIRED"
The QUEUE NAMEhas not been
Enter a valid QUEUE NAME.
entered.
"CICS DATA INVALID FOR
LMID TYPE (I IMS, T
TCP)"
CICS DATAhas been entered and
the LMID TYPEis not CICS.
Remove the CICS DATAor change the
LMID TYPEto CICS.
"INVALID PORT NUMBER
The PORT NUMBERentered is not Enter a valid PORT NUMBER(i.e.,
OPTIONS=(1 -> 65,535)"
valid.
1234).Must not start with a space,
null, or underscore and must be within
the range (1 -> 65,535)
"ACCOUNT ID REQUIRED"
"PASSWORD REQUIRED"
An ACCOUNT IDis required if you Enter an ACCOUNTor erase the
entered a PASSWORD.
PASSWORD.
A PASSWORDis required if you
Enter a PASWORDor erase the
entered an ACCOUNT ID.
ACCOUNT ID.
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Error and Informational Messages
Message
Description
Action
"INVALID MAX MSG SIZE
OPTIONS=(1 -> 32000)"
The MAX MSG SIZEentered is
not valid.
Enter a valid MAX MSG SIZE(i.e.,
4096) Must not start with a space,
null, or underscore and must be within
the range (1 -> 32000)
"INVALID CONNECT RETRY
LIMIT"
The CONNECT RETRY LIMIT
entered is not valid.
Enter a valid CONNECT RETRY
LIMIT(i.e., 10) Must not start with a
space, null, or underscore.
"INVALID SELCDE,
The SELCDEentered is not valid.
Enter a valid SELCDE. See
OPTIONS= (1: INS, 2:
UPD, 3: INQ, 4: DEL)
OPTIONS=.
"INVALID SELCDE,
OPTIONS= (2: UPD, 3:
INQ)
The SELCDEentered is not valid.
Enter a valid SELCDE. See
OPTIONS=.
"INVALID SELECTION,
OPTIONS=(C2-3, C5,
R1-5, S1-5, U2-3,
I1-5)"
The SELECTIONentered is not
valid.
Enter a valid SELECTION. See the list
of valid options in the message.
"INVALID SERVICE NAME"
The SERVICE NAMEentered is not Enter a valid SERVICE NAME. (i.e.,
valid.
EMPLSRV) Must not start with a space,
null, or underscore.
"INVALIDREMOTESERVICE
NAME"
The REMOTE SERVICE NAME
entered is not valid.
Enter a valid REMOTE SERVICE
NAME(i.e., EMPLSRV) Must not start
with a space, null, or underscore.
"INVALID LMID TYPE
OPTIONS= (C CICS, I
IMS, T TCP)"
The LMID TYPEentered is not
valid.
Enter a valid LMID TYPE. See Options
"START TRAN CODE
REQUIRED FOR LMID TYPE
(C CICS)"
No START TRAN CODEhas been Enter a valid START TRAN CODE.
entered and the LMID TYPEis
CICS.
"INVALID TYPE (I
The TYPEentered is not valid.
Enter a valid TYPE.
INCOMING, O OUTGOING)"
"INVALID SECURITY FLAG
(Y/N)"
The SECURITY FLAGentered is
not valid.
Enter a valid SECURITY FLAG(Yor
N).
A-12
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System Error Messages
Message
Description
Action
"INVALID SERVICE
TIMEOUT(SEC)"
The SERVICETIMEOUT(SEC)
entered is not valid.
Enter a valid SERVICE
TIMEOUT(SEC) (i.e. 30). Must not
start with a space, null, or underscore.
"INVALID STATUS
The STATUSentered is not valid.
Enter a valid STATUS. See
OPTIONS=(E ENABLE, D
DISABLE, A ABORT)"
OPTIONS=.
"INVALID OPTION=(E
ENABLE, D DISABLE)"
The AUTO ENABLE
LMID (E|D)option entered is not
valid or is empty.
Enter a valid option (E or D).
"NO CHANGE DONE STATUS
ENTERED SAME AS ON
RECORD"
The STATUSon the record is 'E'
and you entered an 'E'. The
STATUSon the record is 'D' and
you entered a 'D'. The STATUSon
the record is 'A' and you entered a
'A'.
Enter the appropriate STATUS.
"BEA_REQ_HDRRECORDNOT
FOUND"
An error occurred within the
Connection CSA.
Contact your system administrator.
System Error Messages
Message
Description
Action
"BEG/END OF
FILE"
The end of file was detected
during a browse.
None
"DUPLICATE
RECORD"
The record being inserted is
already on the file.
Use a different record key.
"FILE NOT
OPENED"
The file is not available to
CICS.
Contact your system administrator. Check the file
status via CEMT.
"DSIDERR"
Refer to the CICS Application Contact your system administrator.
Reference Manual.
"ILLOGIC"
Refer to the CICS Application Contact your system administrator.
Reference Manual
Oracle Tuxedo Mainframe Adapter for TCP CICS User Guide
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Error and Informational Messages
Message
Description
Action
"INVREQ"
Refer to the CICS Application Contact your system administrator.
Reference Manual.
"IOERR"
Refer to the CICS Application Contact your system administrator.
Reference Manual.
"LENGERR"
"MAPFAIL"
"NOSPACE"
"NOTAUTH"
"PGMIDERR"
Refer to the CICS Application Contact your system administrator.
Reference Manual.
Refer to the CICS Application Contact your system administrator. Check the Mapset
Reference Manual.
status via CEMT.
Refer to the CICS Application Contact your system administrator.
Reference Manual.
Refer to the CICS Application Contact your system administrator.
Reference Manual.
Refer to the CICS Application Contact your system administrator. Check the Program
Reference Manual.
status via CEMT.
"RECORD NOT
FOUND"
The record selected is not in the Verify the data you entered for the record key.
file.
"SYSIDERR"
Refer to the CICS Application Contact your system administrator.
Reference Manual.
"UNKNOWN
ERROR"
Refer to the CICS Application Contact your system administrator.
Reference Manual.
A-14
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