Get UAVCAN Node Information using MAVLink

MAVLink
5
  1. Not as far as I know
  2. No, because they aren’t supported.
  3. Nowhere
  4. That’s not a question for the MAVlink area.

If you are just interested in a particular type of thing, such as a UAVCAN battery, then you can probably look at the associated mavlink messages for that thing - i.e. I am fairly sure that a UAVCAN battery might be exposed via MAVLink.

If you need generic information as provided by these node messages then you’d have to write code to implement them. I don’t know enough about CAN to know how hard that would be. But I suspect not particularly hard.