Minimal rc script to save / restore pf tables to / from disk upon reboots
While the FreeBSD Handbook on pf explains the simple steps necessary to make pf tables survive a reboot, it does not point to an already existing script. This rc script provides a minimum solution. It expects the following variables to be set in /etc/rc.conf:
pftables_enable="YES"
pftables_list="NameOfTable1 NameOfTable2 NameOfTable3" # ...and so on
pftables_dir="/path/to/existing/dir/where/tables/should/be/stored"
The tables mentioned in pftables_list are the same names as in pf.conf.
The script will then save all the mentioned tables upon system shutdown and restore them upon system startup.