This submachine will contain the basic eventing logic that exists inside the four state awaiting_funding_conf.no_channel_ready, awaiting_funding_conf.has_channel_ready, awaiting_funding_depth.no_channel_ready, awaiting_funding_depth.has_channel_ready. That is the handling of disconnect, connect, and validating channel_reestablish messages.

With that basic logic, we can use the StateMachineFactory to construct that state machine, then amend it for each of the unique transitions that exist (some of which will already exist since the prior code only accounts for connected logic.