----------  Forwarded Message  ----------
Subject: Performing a case-insensitive password match in a users file?
Date: Tue, 4 Jul 2000 12:01:11 +0930
From: Simon Hackett <[EMAIL PROTECTED]>


Hi folks (again!),

I'm transitioning various radius user files, each servicing a 
different realm name, into the one radiator setup at the moment.

It's all working - as simply as using AuthBy FILE on each relevant 
radius file from each previously different system, plus the 
StripRealm operator we added (as noted in the previous msg) to make 
each one match while preserving the realm in the accounting files.

What I'd really like to do, because the previous system did 
case-insensitive password matching, is preserve that behavior under 
radiator. The user file concerned has plain text user passwords in 
it, which we've flattened down to all lower case (they weren't even 
consistent in the file, let alone being consistently used by the 
customers concerned).

Now, what I want to do with this realm is handle it with an <AuthBy 
FILE>, but convince radiator to do the ultimate password check 
independently of the case of the user specified password.

I've tried various approaches to this tonight, all in vain so far - 
trying to work out which routine, and where, in Radiator, to frob in 
order to achieve this effect. Unfortunately, the password 
comparison(s) concerned are buried deep inside routines which seem 
impossible to override (check_plaintext_password, in particular, 
seems like the most likely candidate).

Any chance of adding a flag into Radiator, Mike, which might convince 
it on a per-realm basis to do the password checking in a 
case-insensitive manner (I understand that this will only make sense 
in a limited subset of cases - where the plaintext password is 
available, and where it's using PAP and not CHAP, I guess - but 
that's my situation).

I almost want something resembling a 'RewritePassword' operator - 
though a 'LowercasePassword' or 'CaseInsensitivePasswordChecking' one 
would do just fine...

The extreme version of such a notion would be to convince the 
attribute checking code to do case insensitive comparisons in general 
via a flag - which might then be called something like 
CaseInsensitiveCheckItems, I guess :)

Cheers,
   Simon

---
Simon Hackett, Technical Director, Internode Systems Pty Ltd
31 York St [PO Box 284, Rundle Mall], Adelaide, SA 5000 Australia
Email: [EMAIL PROTECTED]  Web: http://www.on.net
Phone: +61-8-8223-2999          Fax: +61-8-8223-1777
-------------------------------------------------------

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