The assignment is changed wrongly in process of refactoring parallel
dialer for resolving bootstrap IP.
While at it, also satisfy staticheck for jffs not enabled error.
This commit add the ability for ctrld to gather client information,
including mac/ip/hostname, and send to Control-D server through a
config per upstream.
- Add send_client_info upstream config.
- Read/Watch dnsmasq leases files on supported platforms.
- Add corresponding client info to DoH query header
All of these only apply for Control-D upstream, though.
Cuong Manh Le