Write a tool that synchronises your tables.
The pfsync protocol as it stands is not an appropriate protocol for
synchronizing tables, because it does not guarantee delivery, and
provides only a best-effort basis at synchronising the state table
(which is helped by the fact that messages on active states are sent
I know it, but i don't know how make it work to sync tabled with another
daemon to modify pf tables from an unprivileged process in userland,
useful e.g. when you want to add hostnames to a pf table from a chrooted
process, e.g. from a webserver.
Don't say nothing about network and man page only talk about to use a fifo.