Using AD and SQL to authenticate Wi-Fi users

[Bruno de Paula Larini]

Hi guys,
I've been using FR (3.0.4) to authenticate Wi-Fi users against Active 
Directory and it is working fine. But now I need to check users in SQL 
database too, like this:

     SSID1 -> check for users in AD
     SSID2 -> check for users in SQL database

I've managed to get it working, but only if the other authentication 
method is disabled. Only one would work at a time.
To get SQL working, I've either commented the ntlm_auth from 
mods-enabled/mschap or added the following to the authorize section in 
sites-enabled/inner-tunnel:

...
update control {
         MS-CHAP-Use-NTLM-Auth := No
}
mschap
...

Removing the above and/or uncommenting the ntlm_auth line, users from AD 
are authenticated successfully but SQL users are not.

I wanted to use unlang to check if the request came from a specific 
Called-Station-Id, but the inner-tunnel doesn't bring this information 
and always return false.

Is there some check I can use to know where the request came from?

Thank you!