Finding equivalent pf rule for iptables SIP REGISTER string

[simplyzero]

I have a few Asterisk PBXs that I’m looking to secure behind a separate FreeBSD box with pf rules as the firewall. In iptables on the CentOS Asterisk PBX’s today I use a rule of “-A INPUT -p udp -m string -i eth0 --dport 5060 -j ACCEPT --string "REGISTER sip:[FQDN HERE]" --algo bm” to look for if you know the FQDN, you’re allowed.

Is there an equivalent way to do this in pf?

[kprovost]

@simplyzero No, there is not.