Facebook login via social framework in ios

I'm new with iOS development. I have to integrate Facebook login in my iOS app, as user logs in it fetches all the info and navigates it to home screen. I have done this via Facebook latest SDK but I want it to be done via social framework. I have gone through lots of online stuff and also have found examples where they are sharing(posting) content on Facebook page(Wall) via social framework but not Facebook login exactly. Anyone please help, let me know if Facebook login is possible via social framework or i have to stick to SDK. Thanks in Advance