Is there an in-kernel way to debug netlink protocol communications?

Netlink (as in, the kernel internal protocol) seems to be very difficult to debug without additional tools - which I can't actually use because I'm on a very confined embedded system. Is there an in-kernel debugging option for netlink if I recompile from source? e.g. logs confirming messages have been received and understood I've set debug verbosity to 15 but I can't find an option that specifically relates to netlink