Attribute to show authentication method

[Jonathan Gazeley]

Is there an easy well to determin in post-auth which authentication 
method was used to authenticate a user?

We have a fairly complex setup where a user can be "authenticated" by 
MAC address in the Authorize section or via EAP-TLS or EAP-PEAP, both 
with their own virtual servers.

In the outer post-auth I want to call a logging module that explicitly 
says how the user was authenticated but I can't find an attribute which 
I can reliably check.

Thanks,
Jonathan

-- 
Jonathan Gazeley
Senior Systems Administrator
IT Services
University of Bristol