Yeah it does quote that Laguna is Squalls dad, before you go to Lunatic Pandora when Laguna and co is on the ragnarok talk to kiros, and he says something about squall looking like his mother(Raine) and then you talk to ward and he says (well kiros translates it) Good thing he doesnt look like his Father. This is enough proof i think. Plus there is a BIG resmblence.