The #1 tube is the oil drain for the airbox and doesn't actually have anything come back up out of it, so you can do with it what you will. (Everything vents through the valve cover.) If you follow it all the way down to the pan you'll find where it attaches next to the turbo drain line. Might be useful if you want to run a self-draining catch can. I would simply plug it for now, since it does lead directly to the engine's oil supply. Definitely do not run the valve cover vent directly into it.

The #2 contraption is the ARV, which is part of the EGR system. If your EGR is non-functional then you can take the cover of the ARV off and shim it so it won't open. Oil coming out is probably because of oil from the valve cover vent. A catch can would help with that.

-Rog