As far as primitive camping, what is allowed? Primitive campfire etc? Pitch a tent wherever?

You can go to the rangers station and get a dispersed camping permit

There designated areas of hiking trails to camp or if you just want to pitch tent somewhere some you need a permit and there are others that you don't problem is people starting to live

Yes, there is an area for tent camping only. But you have to check in. First come first served.

Must camp at designated camp areas