ACI stands for Advanced Communication Interface. ACI-based programming is the base technology of EntireX. It uses a traditional Application Programming Interface (API) approach for conducting client/server and peer-to-peer dialog between distributed processes.
This document describes the EntireX Broker ACI from the perspective of the programming language Natural. It covers the following topics:
See also EntireX Broker ACI Programming for an introduction to ACI programming, a description of ACI fields and functions, and information on writing ACI applications.
Calls to EntireX Broker use the following arguments:
The ACI control block is the first argument.
The send buffer is the second argument.
The receive buffer is the third argument.
The error text buffer is the last argument. It can provide a short
text with the error code, if desired. Sufficient buffer length must be supplied
to allow the standard 40-byte-long message to be returned by EntireX Broker.
For ACI version 9 and above, the error text buffer can be greater than 40 bytes as
specified in the ACI field ERRTEXT-LENGTH.
The send buffer and the receive buffer must always be provided. If they are not required by the selected EntireX Broker function, you can set them as short A1 fields.
The API is called with a statement such as the following for all platforms:
CALL 'BROKER' #ETBCB #SEND-AREA #RECEIVE-AREA #ERROR-TEXT
Natural applications can access the last four bytes of the error code through the RET function.
If 00000000 (zeros) are returned in the ERROR-CODE field in the EntireX
Broker control block, the operation has been performed successfully. However,
function results other than 00000000 (zeros) do not necessarily indicate an
error. See Error Handling.
On UNIX and Windows, the length of fields #SEND-AREA and #RECEIVE-AREA cannot exceed 65535. If you want to send and/or receive more data,
redefine #SEND-AREA and/or #RECEIVE-AREA with a value of, say, A1 and use these fields in the CALL statement. For example:
01 #SEND-AREA (A65536) 01 REDEFINE #SEND-AREA 02 #SEND-AREA-R (A1) 01 #RECEIVE-AREA (A65536) 01 REDEFINE #RECEIVE-AREA 02 #RECEIVE-AREA-R (A1) . CALL 'BROKER' #ETB-CB #SEND-AREA-R #RECEIVE-AREA-R #ERROR-TEXT
The following table shows the Broker fields in the order of the physical layout of the Broker ACI control block and provides a brief description of each field. See the actual copycode for Natural below in Broker ACI Control Block Data Area.
See Broker ACI Fields for more information.
| Broker ACI Field | Natural Definition | Description / Related Information |
API Vers. |
Notes | |
|---|---|---|---|---|---|
API-TYPE |
#TYPE (I1) |
API type. | See API-TYPE and API-VERSION.
|
1 | |
API-VERSION |
#VERSION (I1) |
API version. | 1 | ||
FUNCTION |
#FUNCTION (I1) |
See Broker ACI Functions to perform Broker function. | 1 | ||
OPTION |
#OPTION (I1) |
See Option Descriptions in the ACI Programming documentation. | 1 | ||
#RESERVED (I4/4) |
Reserved for future use. | 1 | 1 | ||
SEND-LENGTH |
#SEND-LEN (I4) |
Send length. | See Using Send and Receive Buffers. | 1 | |
RECEIVE-LENGTH |
#RECEIVE-LEN (I4) |
Receive length. | 1 | ||
RETURN-LENGTH |
#RETURN-LEN (I4) |
Return length. | 1 | ||
ERRTEXT-LENGTH |
#ERRTEXT-LEN (I4) |
Error text length. | 1 | ||
BROKER-ID |
#BROKER-ID (A32) |
Broker ID. See Using the Broker ID in Applications. | 1 | ||
SERVER-CLASSSERVER-NAMESERVICE |
#SERVER-CLASS (A32)#SERVER-NAME (A32)#SERVICE (A32) |
Service. See Control Block Fields and Verbs. | 1 | 3,5 | |
USER-ID |
#USER-ID (A32) |
User ID. See USER-ID and TOKEN.
|
1 | ||
PASSWORD |
#PASSWORD (A32) |
Password. See Authentication. | 1 | 4,5 | |
TOKEN |
#TOKEN (A32) |
Reconnection token. See USER-ID and TOKEN.
|
1 | 3,5 | |
SECURITY-TOKEN |
#SECURITY-TOKEN (B32) |
Security token. See Role of Security Token (STOKEN) during Authentication. | 1 | 4,5 | |
CONV-ID |
#CONV-ID (A16) |
Conversation ID. See Conversational and Non-conversational Mode. | 1 | 3,5 | |
WAIT |
#WAIT (A8) |
Wait value. See Blocked and Non-blocked Broker Calls. | 1 | 3,5 | |
ERROR-CODE |
#ERROR-CODE (A8) |
Error code. See Error Handling and Error Messages and Codes. | 1 | ||
ENVIRONMENT |
#ENVIRONMENT (A32) |
Pass additional information to Translation User Exit. For more information see ACI field ENVIRONMENT.
|
1 | 3,5 | |
ADCOUNT |
#ADCOUNT (I4) |
Attempted delivery count. See Writing Applications: Units of Work. | 2 | ||
USER-DATA |
#USER-DATA (B16) |
Conversation User Data. See Managing Conversation Contexts. | 2 | 3,5 | |
| Not used. | #MSG-ID (B32) |
Message ID. | 2 | 4,5 | |
| Not used. | #MSG-TYPE (A16) |
Message type. | 2 | 3,5 | |
NEWPASSWORD |
#NEWPASSWORD (B32) |
New password. See Changing your Password. | 2 | 4,5 | |
| Not used. | #ADAPTER-ERROR (A8) |
Adapter error. | 2 | ||
CLIENT-UID |
#CLIENT-UID (A32) |
Client user ID. See Client User ID. | 2 | ||
CONV-STAT |
#CONV-STAT (I1) |
Conversation status. See Conversational and Non-conversational Mode. | 2 | ||
STORE |
#STORE (I1) |
Persistence or non-persistence of a UOW. | See Writing Applications: Units of Work. | 2 | |
UOWSTATUS |
#UOWSTATUS (I1) |
UOW Status. | 3 | 3,5 | |
UWTIME |
#UOWTIME (A8) |
UOW lifetime. | 3 | 3,5 | |
UOWID |
#UOWID (A16) |
UOW unique identifier. | 3 | 3,5 | |
USTATUS |
#USERSTATUS (A32) |
User status. | 3 | ||
UOW-STATUS-PERSIST |
#UOWSTATUSPERSIST (I1) |
Multiplier for persistent status lifetime. | 3 | 2 | |
LOCALE-STRING |
#LOCS (A40) |
Locale string. To be used to override or provide a codepage name to tell the broker the encoding of the data. For more information
see ACI field LOCALE-STRING.
|
4 | ||
FORCE-LOGON |
#FLOG (A1) |
Override Broker AUTOLOGON. See FORCE-LOGON.
|
See Writing Applications using EntireX Security. | 6 | |
#ENCL (I1) |
Encryption level. Deprecated. For encrypted transport we strongly recommend using the Secure Sockets Layer/Transport Layer Security protocol. See Using the Broker ACI with SSL/TLS. | 6 | 2 | ||
KERNELSECURITY |
#KERNELSECURITY (A1) |
Kernel security. See Is Broker Kernel Secure?. | 7 | ||
COMMITTIME |
#COMMITTIME (A17) |
Commit time. See Writing Applications: Units of Work. | 7 | ||
COMPRESSLEVEL |
#COMPRESSLEVEL (A1) |
Compression level. See Data Compression. | 7 | ||
UWSTAT-LIFETIME |
#UWSTATUSLIFE (A8) |
Add value for persistent status
lifetime. See UWSTAT-LIFETIME.
|
8 | ||
CLIENT-ID |
#CLIENT-ID (I4) |
Returns to a server application
the unique instance number of a client application. It is returned on receipt
of a message (RECEIVE or SEND with WAIT). See also
Tracing.
|
9 | ||
LOG-COMMAND |
#LOG-COMMAND (A1) |
Log the current command. See also Programmatically Turning on Command Logging. | 9 | ||
CREDENTIALS-TYPE |
#CREDENTIALS-TYPE (A1) |
Indicates the credentials type to be used to authenticate a user. The default is to use user ID and password. | 9 | ||
VARLIST-OFFSET |
#VARLIST-OFFSET (I4) |
Internal Software AG field. | 10 | ||
LONG-BROKER-ID-LENGTH |
#LONG-BROKER-ID-LENGTH (I4) |
See LONG-BROKER-ID-LENGTH.
|
10 | ||
MESSAGE-ID |
#MESSAGE-ID (A64) |
See Unique Message ID in the EntireX Broker ACI Programming documentation. | 11 | ||
CORRELATION-ID |
#CORRELATION-ID (A64) |
CORRELATION-ID. |
11 | ||
USE-SPECIFIED-MESSAGE-ID |
#USE-SPECIFIED-MESSAGE-ID (I1) |
Use supplied MESSAGE-ID for SEND.
|
11 | ||
USE-SPECIFIED-CORRELATION-ID |
#USE-SPECIFIED-CORRELATION-ID (I1) |
Send supplied CORRELATION-ID to Broker.
|
11 | ||
#RESERVED6 (A3) |
Reserved for future use. | 11 | |||
#RESERVED7 (I4) |
Reserved for future use. | 11 | |||
LONG-PASSWORD-LENGTH |
#LONG-PASSWORD-LENGTH(I4) |
Length of long password. See Authentication. | 12 | ||
LONG-NEWPASSWORD-LENGTH |
#LONG-NEW-PASSWORD-LENGTH(I4) |
Length of long new password. See Changing your Password. | 12 | ||
Notes:
To produce a Natural LDA object
Cut and paste the data area below into a Natural program source.
Append it with an END statement and STOW the module.
Open the LDA editor and incorporate the data area using line command .i(program source-name).
* - -------------------------------- - ---------- --------------------------
* Product .....: EntireX Broker
* Copyright ...: (c) Software AG 1997-2019 All rights reserved.
* VERSION .....: ACI VERSION 12
* Description .: Natural language ACI control block definitions.
*
* To call broker use CALL 'BROKER' #ETBCB
* To set CB fields use ASSIGN #SDPA-CB.#xxxx = ..
*
* * * * * * * * * * * * * * * * * * Attention * * * * * * * * * * * * *
* These statements do not work to CALL 'BROKER' #SDPA-CB(*)
* call the broker CALL 'BROKER' #SDPA-API ..
* * * * * * * * * * * * * * * * * * Attention * * * * * * * * * * * * *
*
* - -------------------------------- - ---------- --------------------------
* EntireX Broker API Function Constants ----------------
I 1 #FCT-SEND I 1
I 1 #FCT-RECEIVE I 1
I 1 #FCT-UNDO I 1
I 1 #FCT-EOC I 1
I 1 #FCT-REGISTER I 1
I 1 #FCT-DEREGISTER I 1
I 1 #FCT-VERSION I 1
I 1 #FCT-LOGON I 1
I 1 #FCT-LOGOFF I 1
I 1 #FCT-SET I 1
I 1 #FCT-GET I 1
I 1 #FCT-SYNCPOINT I 1
I 1 #FCT-KVER I 1
I 1 #FCT-LOCT I 1
I 1 #FCT-SSLP I 1
I 1 #FCT-SEND-P I 1
I 1 #FCT-RCVE-P I 1
I 1 #FCT-SUBS-P I 1
I 1 #FCT-USUB-P I 1
I 1 #FCT-CNTL-P I 1
I 1 #FCT-RPLY-E I 1
I 1 #FCT-GET-MESSAGE-ID I 1
*
* EntireX Broker API Option Constants ----------------
I 1 #OPT-MSG I 1
I 1 #OPT-HOLD I 1
I 1 #OPT-IMMED I 1
I 1 #OPT-QUIESCE I 1
I 1 #OPT-EOC I 1
I 1 #OPT-CANCEL I 1
I 1 #OPT-LAST I 1
I 1 #OPT-NEXT I 1
I 1 #OPT-PREVIEW I 1
I 1 #OPT-COMMIT I 1
I 1 #OPT-BACKOUT I 1
I 1 #OPT-SYNC I 1
I 1 #OPT-ATTACH I 1
I 1 #OPT-DELETE I 1
I 1 #OPT-EOCCANCEL I 1
I 1 #OPT-QUERY I 1
I 1 #OPT-SETSTATUS I 1
I 1 #OPT-ANY I 1
I 1 #OPT-TERMINATE I 1
I 1 #OPT-DURABLE I 1
I 1 #OPT-CHECKSVC I 1
*
* EntireX Broker Conversation Status Constants ---------
I 1 #CONVSTAT-NEW I 1
I 1 #CONVSTAT-OLD I 1
I 1 #CONVSTAT-NONE I 1
*
* EntireX Broker Store Constants ----------------
I 1 #STORE-OFF I 1
I 1 #STORE-BROKER I 1
I 1 #STORE-ON I 1
*
* EntireX Broker Status Constants ----------------
I 1 #STAT_OFF I 1
I 1 #STAT_STORED I 1
I 1 #STAT_DELIVERY-ATTEMP I 1
I 1 #STAT_DELIVERED I 1
I 1 #STAT_PROCESSED I 1
I 1 #STAT_DEAD I 1
*
* EntireX Broker UOW Status Constants ----------------
I 1 #RECV-NONE I 1
I 1 #RECEIVED I 1
I 1 #ACCEPTED I 1
I 1 #DELIVERED I 1
I 1 #BACKEDOUT I 1
I 1 #PROCESSED I 1
I 1 #CANCELLED I 1
I 1 #TIMEOUT I 1
I 1 #DISCARDED I 1
I 1 #RECV-FIRST I 1
I 1 #RECV-MIDDLE I 1
I 1 #RECV-LAST I 1
I 1 #RECV-ONLY I 1
I 1 #POSTPONED I 1
*
* EntireX Broker Locale String Constants ----------------
I 1 #ETB-CODEPAGE-USE-DEFAULT A 5
*
* EntireX Broker Force Logon Constants ----------------
I 1 #FLOG-YES A 1
I 1 #FLOG-NO A 1
I 1 #FLOG-S A 1
*
* EntireX Broker Constants ----------------
I 1 #ENCLEVEL-NONE I 1
I 1 #ENCLEVEL-TO-BROKER I 1 /* deprecated
I 1 #ENCLEVEL-TO-TARGET I 1 /* deprecated
*
* EntireX Broker KernelSecurity Constants ----------------
I 1 #KERNEL-SECURITY-NO A 1
I 1 #KERNEL-SECURITY-YES A 1
I 1 #KERNEL-SECURITY-USER A 1
I 1 #KERNEL-SECURITY-LIGHT A 1
*
* EntireX Broker Compression Level Constants ----------------
I 1 #COMPRESS-LEVEL-0 A 1
I 1 #COMPRESS-LEVEL-1 A 1
I 1 #COMPRESS-LEVEL-2 A 1
I 1 #COMPRESS-LEVEL-3 A 1
I 1 #COMPRESS-LEVEL-4 A 1
I 1 #COMPRESS-LEVEL-5 A 1
I 1 #COMPRESS-LEVEL-6 A 1
I 1 #COMPRESS-LEVEL-7 A 1
I 1 #COMPRESS-LEVEL-8 A 1
I 1 #COMPRESS-LEVEL-9 A 1
I 1 #COMPRESS-LEVEL-NO A 1
I 1 #COMPRESS-LEVEL-YES A 1
*
* EntireX Broker Credential Type Constants ----------------
I 1 #CREDENTIAL-TYPE-UID-PWD I 1
*
* EntireX Broker API Control Block Definition ---------------
*
1 #SDPA-CB B 128 (8)
R 1 #SDPA-CB /* V1
2 #ETBCB A 1 /* V1 to pass CB to stub
R 1 #SDPA-CB
2 #ETBAPI A 1 /* V1 don't use/deprecated
R 1 #SDPA-CB
2 #SDPA-API /* V1 don't use/deprecated
3 #TYPE I 1 /* V1 type of ETBCB
R 3 #TYPE
4 #API-TYPE I 1 /* V1 alternative name
3 #VERSION I 1 /* V1 version of ETBCB
R 3 #VERSION
4 #API-VERSION I 1 /* V1 alternative name
3 #FUNCTION I 1 /* V1 function
3 #OPTION I 1 /* V1 option
3 #RESERVED I 4 (4) /* V1 reserved
3 #SEND-LEN I 4 /* V1 length of send data
R 3 #SEND-LEN
4 #SEND-LENGTH I 4 /* V1 alternative name
3 #RECEIVE-LEN I 4 /* V1 max. len. rec. data
R 3 #RECEIVE-LEN
4 #RECEIVE-LENGTH I 4 /* V1 alternative name
3 #RETURN-LEN I 4 /* V1 length of rec.data
R 3 #RETURN-LEN
4 #RETURN-LENGTH I 4 /* V1 alternative name
3 #ERRTEXT-LEN I 4 /* V1 max. len. error text
R 3 #ERRTEXT-LEN
4 #ERRTEXT-LENGTH I 4 /* V1 alternative name
3 #BROKER-ID A 32 /* V1 target broker ID
3 #SERVER-CLASS A 32 /* V1 part of service name
3 #SERVER-NAME A 32 /* V1 part of service name
3 #SERVICE A 32 /* V1 part of service name
3 #USER-ID A 32 /* V1 user ID of caller
3 #PASSWORD B 32 /* V1 password of caller
R 3 #PASSWORD
4 #PASSWORD-C A 1 (32)
3 #TOKEN A 32 /* V1 special purposes
3 #SECURITY-TOKEN B 32 /* V1 security purposes
R 3 #SECURITY-TOKEN
4 #SECURITY-TOKEN-C A 1 (32)
3 #CONV-ID A 16 /* V1 conv./non-conv.
3 #WAIT A 8 /* V1 blocked/non-blocked
3 #ERROR-CODE A 8 /* V1 error class/number
R 3 #ERROR-CODE
4 #ERROR-CLASS N 4 /* V1 error class
4 #ERROR-NR N 4 /* V1 error number
R 3 #ERROR-CODE
4 #ERROR-CODE-CLASS N 4 /* V1 alternative name
4 #ERROR-CODE-NR N 4 /* V1 alternative name
3 #ENVIRONMENT A 32 /* V1 translation purposes
3 #ADCOUNT I 4 /* V2 attempt deliv. count
3 #USER-DATA B 16 /* V2 user data field
R 3 #USER-DATA
4 #USER-DATA-C A 1 (16)
3 #MSG-ID B 32 /* V2 not used by broker
R 3 #MSG-ID
4 #MSG-ID-C A 1 (32)
3 #MSG-TYPE A 16 /* V2 not used by broker
3 #PTIME A 8 /* V2 not used by broker
3 #NEWPASSWORD B 32 /* V2 new passwd of caller
R 3 #NEWPASSWORD
4 #NEWPASSWORD-C A 1 (32)
3 #ADAPTER-ERROR A 8 /* V2 not used by broker
3 #CLIENT-UID A 32 /* V2 userid for security
3 #CONV-STAT I 1 /* V2 conversation status
3 #STORE I 1 /* V2 flag for saving data
3 #STATUS I 1 /* V2 not used by broker
3 #UOWSTATUS I 1 /* V3 UOW's status
R 3 #UOWSTATUS
4 #UOWSTA I 1 /* V3 don't use/deprecated
3 #UOWTIME A 8 /* V3 UOW lifetime in sec.
R 3 #UOWTIME
4 #UOWTIM A 8 /* V3 don't use/deprecated
3 #UOWID A 16 /* V3 UOW ID
3 #USERSTATUS A 32 /* V3 user status
R 3 #USERSTATUS
4 #USRSTA A 32 /* V3 don't use/deprecated
3 #UOWSTATUSPERSIST I 1 /* V3 UOW st. persist flag
R 3 #UOWSTATUSPERSIST
4 #UOWSTP I 1 /* V3 don't use/deprecated
3 #UOWFILLER A 3 /* V3 alignment
R 3 #UOWFILLER
4 #FILL A 3 /* V3 don't use/deprecated
3 #LOCS A 40 /* V4 callers set locale
3 #DARCH I 1 /* V4 for future use
3 #FLOG A 1 /* V6 force logon
3 #ENCL I 1 /* V6 don't use/deprecated
3 #KERNELSECURITY A 1 /* V7 security indicator
3 #COMMITTIME A 17 /* V7 UOW commit time
3 #COMPRESSLEVEL A 1 /* V7 compression level
3 #RESERVED3 B 2 /* V7 alignment
3 #RESERVED4 B 4 /* V7 reserved for future
3 #UWSTATUSLIFE A 8 /* V8 UOWStLifeTime:adder
3 #TOPIC A 96 /* V8 topic name
3 #PUBLICATION-ID A 16 /* V8 publication ID
3 #RESERVED-V99-1 A 32 /* V9 reserved for future
3 #RESERVED-V73-1 I 4 /* V9 reserved for future
R 3 #RESERVED-V73-1
4 #EXTENSION-SEND-LENGTH I 4 /* V9 don't use/deprecated
3 #RESERVED-V73-2 I 4 /* V9 reserved for future
R 3 #RESERVED-V73-2
4 #EXTENSION-RECEIVE-LENGTH I 4 /* V9 don't use/deprecated
3 #RESERVED-V73-3 I 4 /* V9 reserved for future
R 3 #RESERVED-V73-3
4 #EXTENSION-RETURN-LENGTH I 4 /* V9 don't use/deprecated
3 #CLIENT-ID I 4 /* V9 unique client ID
3 #RESERVED-V73-4 A 32 /* V9 reserved for future
R 3 #RESERVED-V73-4
4 #SERVER-REPLICATION-GROUP A 32 /* V9 don't use/deprecated
3 #LOG-COMMAND A 1 /* V9 broker cmd logging
3 #CREDENTIALS-TYPE A 1 /* V9 credential type
3 #RESERVED-V73-5 A 32 /* V9 reserved for future
R 3 #RESERVED-V73-5
4 #VERIFIED-USERID A 32 /* V9 don't use/deprecated
3 #RESERVED5 B 2 /* V9 alignment
3 #VARLIST-OFFSET I 4 /*V10 variable list offset
3 #LONG-BROKER-ID-LENGTH I 4 /*V10 Len long broker id
3 #MESSAGE-ID A 64 /*V11 MSG ID SENT/RCVD MSG
3 #CORRELATION-ID A 64 /*V11 MSG ID SENT MSG
3 #USE-SPECIFIED-MESSAGE-ID I 1 /*V11 No new MSG ID 4 SEND
3 #USE-SPECIFIED-CORRELATION-ID I 1 /*V11 Send COR ID 2 Broker
3 #RESERVED6 A 2 /*V11 reserved for future
3 #RESERVED7 I 4 /*V11 reserved for future
3 #LONG-PASSWORD-LENGTH I 4 /*V12 Len long password
3 #LONG-NEW-PASSWORD-LENGTH I 4 /*V12 Len long new passwd
ACI applications can use Secure Sockets Layer/Transport Layer Security (SSL/TLS) as the transport medium. The term "SSL" in this section refers to both SSL and TLS. ACI-based clients or servers are always SSL clients. The SSL server can be either the EntireX Broker or the Broker SSL Agent. For an introduction see SSL/TLS and Certificates with EntireX in the Platform-independent Administration documentation. This section describes using the Broker ACI with SSL on the following platforms:
SSL delivered on a z/OS mainframe will typically use the Resource Access Control Facility (RACF) as the certificate authority (CA). Certificates managed by RACF can only be accessed through the RACF keyring container. A keyring is a collection of certificates that identify a networking trust relationship (also called a trust policy). In an SSL client/server network environment, entities identify themselves using digital certificates called through a keyring. Server applications on z/OS that wish to establish network connections to other entities can use keyrings and their certificate contents to determine the trustworthiness of the client or peer entity. Note that certificates can belong to more than one keyring, and you can assign different users to the same keyring. Because of the way RACF internally references certificates, they must be uniquely identifiable by owner and label, and also unique by serial number plus data set name (DSN).
For establishing an SSL connection on z/OS, IBM's Application Transparent Transport Layer Security (AT-TLS) can be used, where the establishment of the SSL connection is pushed down the stack into the TCP layer.
With the Broker ACI for Natural you can use IBM's Application Transparent Transport Layer Security, where the establishment of the SSL connection is pushed down the stack into the TCP layer.
Configure the AT-TLS rules for the policy agent (PAGENT) 
using an appropriate client 
and the z/OS Management Facility (z/OSMF) 
.
Together with SSL parameters (to provide certificates stored in z/OS as RACF keyrings) define AT-TLS rules, for example by
using the application 
job name and remote TCP port number.
If the rules match, the TCP connection is turned into an SSL connection 
.
Refer to your IBM documentation for more information, for example the IBM Redbook Communications Server for z/OS VxRy TCP/IP Implementation Volume 4: Security and Policy-Based Networking.
|
Client to interact with z/OS Management Facility (z/OSMF). |
|
AT-TLS rules are defined with z/OSMF policy management. |
 |
Policy Repository with AT-TLS rules stored as z/OS files. |
|
Policy Agent, MVS task PAGENT, provides AT-TLS rules through a policy enforcement point (PEP) to TCP/IP stack.
|
|
Application using TCP connection. |
|
If AT-TLS rules match, the TCP connection is turned into an SSL connection. |
Notes:
may vary per operating system, for example a Web browser for z/OS 2.1.
includes other administration and management tasks in addition to policy management.
includes other rules, such as IP filtering, network address translation etc.
To set up SSL with AT-TLS
To operate with SSL, certificates need to be provided and maintained. Depending on the platform, Software AG provides default certificates, but we strongly recommend that you create your own. See SSL/TLS Sample Certificates Delivered with EntireX in the EntireX Security documentation.
Set up the ACI application (client or server) for a TCP/IP connection. On mainframe platforms, use Transport-method-style Broker ID. Example
ETB024:1699:TCP
Configure AT-TLS to turn the TCP/IP connection to an SSL connection,
using a client to interact with the z/OS Management Facility (z/OSMF).
The outcome of this configuration is a Policy Repository with AT-TLS rules stored as z/OS files.
This file is the configuration file for the Policy Agent, MVS task PAGENT.
Make sure the SSL server to which the ACI application (client or server) connects is prepared for SSL connections as well. The SSL server can be EntireX Broker, Broker SSL Agent, or Direct RPC in Integration Server (IS inbound). See:
Establishing an SSL connection on z/VSE requires BSI's Automatic Transport Layer Security (ATLS). This facility is similar to z/OS Application Transparent - Transport Layer Security (AT-TLS). ATLS is supported by the BSI stack only.
Together with SSL parameters (to provide certificates), define ATLS rules for socket interception in the ATLS daemon startup
job BSTTATLS .
If the rules match, the socket connection is turned into an SSL connection .
Refer to your IBM documentation for further information. For an overview, refer to the IBM Redbook Enhanced Networking on IBM z/VSE; for a more detailed description, refer to BSI SSL Installation, Programming and User's Guide.
|
BSI TCP/IP Stack, either BSTTINET (IPv4) or BSTT6NET (IPv6). |
|
ATLS rules are defined manually. See Sample ATLS Daemon Configuration below. |
|
BSTTATLS is associated with a TCP/IP stack. |
|
Application using TCP connection. |
|
BSTTATLS intercepts outbound TCP connection and converts it to SSL connection. For inbound, SSL connections can also be intercepted and converted to TCP connections. |
To set up SSL with AT-TLS
To operate with SSL, certificates need to be provided and maintained. Depending on the platform, Software AG provides default certificates, but we strongly recommend that you create your own. See SSL/TLS Sample Certificates Delivered with EntireX in the EntireX Security documentation.
Set up the RPC component for a TCP/IP connection. On mainframe platforms, use Transport-method-style Broker ID. Example:
ETB024:1699:TCP
Configure AT-TLS to turn the TCP/IP connection to an SSL connection,
using a client to interact with the z/OS Management Facility (z/OSMF).
The outcome of this configuration is a Policy Repository with AT-TLS rules stored as z/OS files.
This file is the configuration file for the Policy Agent, MVS task PAGENT.
Make sure the SSL server to which the RPC component connects is prepared for SSL connections as well. The SSL server can be EntireX Broker, Broker SSL Agent, or Direct RPC in webMethods Integration Server (IS inbound). See:
* Converting inbound EntireX Broker connection * Converts listen port 1971 to SSL listen port 1972 OPTION SERVER ATTLS 1971 AS 2071 SSL * * Converting outbound client connection * Converts connect to 192.168.2.100:1972:TCP to 192.168.2.100:2072:SSL OPTION CLIENT ATTLS 1972 TO 192.168.2.100 AS 2072 SSL
Note:
We recommend setting SETPARM value SUBTASK to a value greater than 0 in the ATLS daemon startup job (valid values 0-16, default=0). For example:
// SETPARM SUBTASK=8
See also BSI SSL Installation, Programming and User's Guide.
For additional information see also Using the BSI TCP/IP Stack under Hints for Setting up Broker JCL in z/VSE in the z/VSE Installation documentation and SSL/TLS and Certificates with EntireX.