[Chilli] Use of facebook to authenticate in RADIUS

[Wilson Talento]

Hi.
I am developing a system with captive portal which uses facebook accounts
as login credentials. I am using coovachilli on an OpenWRT to do this
feature.
However, in order to access facebook login, i have to include facebook.com
to uamdomains. The problem is, since facebook.com is included in the
whitelist, they can go directly to facebook.com without passing through my
splash page. Any suggestion for workaround on this?

Thank you very much. Any opinion will be greatly appreciated.

P.S. The use of squidproxy may not be available. I have a very low flash
memory in my router and the package for squid won't fit.
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