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RE: FW: memory leak in some Kerberos APIs?
Once I tried to use the heimdal library, one conflict I got is actually from GSS-API side. In my program, after getting the TGT, I will use GSS-API to do the kerberos authentication, while calling gss_init_sec_context() I explicitly passed Kerberos mechanism instead of GSS_C_NO_OID in. The mechanism OID for Kerberos is "1.2.840.113522.214.171.124", of course before passing this argument to gss_init_sec_context() I need to transfer it into a gss_OID object.
This approach works fine in MIT package however here I found there is no definition for:
in heimdal which I used to convert the "1.2.840.1135126.96.36.199" to an OID object then released it afterwards. Does heimdal provide other API's to do the same job? Or if I can just pass GSS_C_NO_OID to make it work, how should I configure my Solaris 8 machine to make the default mechanism the Kerberos one?
From: Kent Wu (RD-US)
Sent: Monday, June 09, 2003 2:29 PM
Subject: RE: FW: memory leak in some Kerberos APIs?
It seems it has been on the to-do list for a while though. :)
What we tried to achieve is to verify user's credentail if we turn proxy authorization on (407 reutrn code) in http traffic. The problem with the krb5_context not being thread-safe is that in the multi-thread env, we need to implement a sync lock around the authentication code to guarantee exclusion, which might slow down the performance that is crucial in http traffic.
However if that's the status so far, I think we can live with it. BTW, I still can't get my memory leak problem resolved in MIT library, I think I'll try the heimdal instead.
Thx a lot.
From: Johan Danielsson [mailto:email@example.com]
Sent: Saturday, June 07, 2003 6:32 AM
To: Kent Wu (RD-US)
Subject: Re: FW: memory leak in some Kerberos APIs?
> BTW, according to the material I read so far the Kerberos library is
> not really thread-safe, do you guys have plans to make it
It's on the todo-list. I think there is talk about this in the MIT
Is this something you need, or does it just sound like a good idea? Do
you have anything specific you want to do?