SDK logging of low-level movement/interactions

Is it possible to log the
following types of information via the Oculus SDK (while e.g. using the
DK2): head position with 3D coordinates/directions, eye positions,
hand/controller positions, buttons pressed, the image the user is
currently seeing (or video?). Is this provided by the SDK or is there a
way to obtain this directly from the hardware? Or is this only
accessible (and better caught) via a gaming engine, such as Unreal, that
interfaces to Oculus?

I only have a very basic understanding of
the hardware and the SDK and want to get a better understanding of
getting to low-level sensor information. I am thinking about a small
project that simply records these types of low-level information and
possibly getting to some derived higher-level movement information (e.g.
gestures) . Any help pointing me to sections of the SDK, other
documentation, other VR projects and/or tools would be highly
appreciated.