Free Radius + Pfsense + Captive portal + Social Login

[hiran bhagvan]

Hi
I have just installed Pfsense and free radius. Can anyone tell me if it is possible for me to configure pfsense / free radius to achieve the following.
I have a number of Hardware Firewall Routers at different locations around the country. I want to offer "Guest wifi" i want users to connect the the guest SSID and then see a splash screen with the option to login with facebook, google, twitter etc. 
Once they login their MAC address of their device will be saved on pfsence database so if that user goes to another site and connects to another router they will not have to login again. Is this possible?
If it is can anyone tell me how i go about configuring this with pfsence / free radius.
Thank
Hiran

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