[SNMP4J] Agent VACM question

[Jothi P Neelamegam]

Hi,

If I create a group with null writeview (I do not want members of this 
group to have any write access at all ) and then try to do a set operation 
with a member of this group, I get a time out instead of an "Access 
denied" error.

Here is a sample code snippet:

In test agent,
vacm.addGroup (v2c,"myuser", "mygroup", ...);
vacm.addAccess(new OctetString("mygroup"),..,..,..,
 	new OctetString("fullReadView"),
 	null,  // null write view
 	...)

Now, when I do
snmpset -c myuser parameters

I get a timeout.

On exploring, a simple modification to CommandProcessor.java can fix this:

Currently, in processReqeuest

processRequest 
{
 	if (viewName == null)
 	{
 		//This is reached
 		setAuthorizationError(req, VACM.VACM_NO_SUCH_VIEW);
 	}
 	else
 	{
 		// Do processing
 	}
 	finalizeRequest()
}

And
finalizeRequest
{
 	if (req.isComplete()) {    // Request is not complete as we have
                                       auth error, so no response is sent.
 		//send response
 	}
}

If the code is modified either (in processRequest, after setAuthorizationError)
1. to mark the request as complete  or
2. sendResponse and return

we can handle this problem.

Thanks
Jothi



Jothi P Neelamegam
Verari Systems Pvt. Ltd. 
Bangalore, India
Work: +91 (80) 26346485, 26557998
http://verarisoft.com http://verari.com
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