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| set userid in MQClient connecting to os/390 |
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Message
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| jigjim |
 Posted: Thu Sep 23, 2004 7:30 am Post subject: set userid in MQClient connecting to os/390 |
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Apprentice
Joined: 30 Mar 2004
Posts: 41
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Hi,
I am using MQ Client running in WebSphere to connect to MQ queues on OS/390.
I am having some security problems and would like to know at what places I can set the user id.
For the msg I can set the user id
| Code: |
| msg.userId = "abcdefgh"; |
but that didnt work.
There is mgr.alternateUserId but i dont know how to use that.
Can somebody pls tell me where I might be getting security violations and where the places I should try to set the userId. I have the Id with me but I just dont knwo how to set it using MQClient on WebSphere.
Thanks
Jigs |
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| jefflowrey |
| Posted: Thu Sep 23, 2004 8:17 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Are you using JMS? Are you storing QCFS in JNDI?
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I am *not* the model of the modern major general. |
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| jigjim |
| Posted: Thu Sep 23, 2004 9:23 am Post subject: |
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Apprentice
Joined: 30 Mar 2004
Posts: 41
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No,
I am using MA88 files. Here is a snapshot of the code.
| Code: |
MQEnvironment.disableTracing ();
MQException.log = null;
MQEnvironment.hostname = sys;
String channel = "SYSTEM.DEF.SVRCONN";
MQEnvironment.channel = channel;
MQEnvironment.port = Integer.parseInt (port);
MQEnvironment.properties.put(MQC.TRANSPORT_PROPERTY, MQC.TRANSPORT_MQSERIES);
try {
mgr = new MQQueueManager(sys);
int openOptions = MQC.MQOO_OUTPUT;
q = mgr.accessQueue(sendQ,openOptions,null,null,null);
msg = new MQMessage();
msg.format = MQC.MQFMT_IMS_VAR_STRING;
String id = String.valueOf(Math.random());
msg.messageId = id.getBytes();
msg.replyToQueueName = replyQ;
MQPutMessageOptions pmo = new MQPutMessageOptions();
String data = "CMDMASK DIS A";
short LL = (short)(data.length() + 4);
short ZZ =0;
msg.writeShort(LL);
msg.writeShort(ZZ);
msg.writeString(data);
q.put(msg, pmo);
q.close();
openOptions = MQC.MQOO_INPUT_AS_Q_DEF;
q = mgr.accessQueue(replyQ, openOptions, null, null, null);
MQGetMessageOptions gmo = new MQGetMessageOptions();
gmo.options = MQC.MQGMO_WAIT | MQC.MQGMO_FAIL_IF_QUIESCING;
gmo.waitInterval = 1000;
qmsg = new MQMessage();
qmsg.correlationId = id.getBytes();
q.get(qmsg, gmo);
retMsg = qmsg.readString(qmsg.getMessageLength());
mgr.disconnect();
}
catch(MQException e) {
}
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| jefflowrey |
| Posted: Thu Sep 23, 2004 9:38 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| jigjim wrote: |
| I am using MA88 files. |
Don't.
They're out of date. Download the free 5.3 client and use the java libraries from there.
As to the other, I don't think you can set this on an individual level this way. WAS can't run a generic piece of code as a separate user, and the plain Java MQ apis can't set the user either.
You can, of course, change the user that WAS is running as.
But you're much better off setting up either a security exit pair, which you can use from Java, or configuring SSL and creating a channel for this client connection on your z/os machine that has an MCAUser set.
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I am *not* the model of the modern major general. |
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| jigjim |
| Posted: Thu Sep 23, 2004 10:27 am Post subject: |
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Apprentice
Joined: 30 Mar 2004
Posts: 41
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Thanks for the information.
I will upgrade to 5.3 ASAP.
As per your other suggestion, I have a specific channel setup for the client connection. Can you please provide more details on what MACUSer is and how to set it ?
The objective of my code is to make sure that user ids dont fail wehn we switch from test to prod. For that reason i am trying to create a "2035" scenario with sample messages.
Is that possible ?
Thanks
Jigs |
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| RogerLacroix |
| Posted: Thu Sep 23, 2004 2:26 pm Post subject: |
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Jedi Knight
Joined: 15 May 2001
Posts: 3264
Location: London, ON Canada
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Hi,
The UserID field of the MQMD is part of the 'Identity Context' information. Therefore, to set it you need to set the OpenOptions and PMO of either SET_ALL_CONTEXT or SET_IDENTITY_CONTEXT on both calls.
Or if you don't want to be flipping back and forth between UserIDs then just set the MQEnvironment.userID field in the same place as the other MQEnvironment fields. i.e.
| Code: |
| MQEnvironment.userID = "abcdefgh"; |
Regards,
Roger Lacroix
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