Pointers for adding a new sockets protocol

[Vishnu Dasa]

Hello Everyone,
I'm looking for some pointers on how to add a new sockets protocol in
FreeBSD. Something on the lines of
https://linuxwarrior.wordpress.com/2008/12/02/add-a-new-protocol-to-linux-kernel/
would be greatly helpful. If you can redirect me to other mailing lists,
that would be helpful too.

Thanks in advance!

Regards,
Vishnu