fwb_pf(1)							 Firewall Builder							 fwb_pf(1)

NAME

       fwb_pf - Policy compiler for OpenBSD packet filter "pf"

SYNOPSIS

       fwb_pf [-vVx] [-d wdir] [-o output.fw] [-i] -f data_file.xml object_name

DESCRIPTION

       fwb_pf is a firewall policy compiler component of Firewall Builder (see fwbuilder(1)). This compiler generates code for OpenBSD Packet Fil-
       ter (pf). Compiler reads objects definitions and firewall description from the data file specified with "-f" option and generates  pf  con-
       figuration files and firewall activation script.

       All  generated files have names that start with the name of the firewall object. Firewall activation script has extension ".fw" and is sim-
       ple shell script that flushes current policy, loads new filter and nat rules and then activates pf.  PF configuration file name starts with
       the  name  of  the  firewall  object,  plus "-pf.conf".	NAT configuration file name also starts with the name of the firewall object, plus
       "-nat.conf". For example, if firewall object has name "myfirewall", then compiler will create three  files:  "myfirewall.fw",  "myfirewall-
       pf.conf", "myfirewall-nat.conf".

       The data file and the name of the firewall objects must be specified on the command line. Other command line parameters are optional.

OPTIONS

       -f FILE
	      Specify the name of the data file to be processed.

       -o output.fw
	      Specify output file name

       -d wdir
	      Specify	working   directory.  Compiler	creates  firewall activation script and PF configuration files in this directory.  If this
	      parameter is missing, then all files will be placed in the current working directory.

       -v     Be verbose: compiler prints diagnostic messages when it works.

       -V     Print version number and quit.

       -i     When this option is present, the last argument on the command line is supposed to be firewall object ID rather than its name

       -x     Generate debugging information while working. This option is intended for debugging only and may produce lots of cryptic messages.

NOTES

       Support for PF has been introduced in version 1.0.1 of Firewall Builder

       Supported features:

       o      both pf.conf and nat.conf files are generated

       o      negation in policy and NAT rules

       o      grouping in "from", "to" and ports using '{' '}' syntax

       o      if checkbox "Scrub" is checked in the rule options dialog, and rule's action is Accept, the compiler generates two (almost)  identi-
	      cal rules: first with action 'scrub' and the second with action 'pass quick'

       o      stateful	inspection in individual rule can be turned off in rule options dialog. By default compiler adds "keep state" or "modulate
	      state" to each rule with action 'pass'

       o      rule options dialog provides a choice of icmp or tcp rst replies for rules with action "Reject"

       o      compiler adds flag "allow-opts" if match on ip options is needed

       o      compiler can generate rules matching on TCP flags

       o      compiler can generate script adding ip aliases for NAT rules using addresses that do not belong to any interface of the firewall

       o      compiler always adds rule "block quick all" at the very bottom of the script to ensure "block all by default"  policy  even  if  the
	      policy is empty.

       o      Address ranges in both policy and NAT

       Features that are not supported (yet)

       o      custom services

       What will not be supported (at least not anytime soon)

       o      policy routing

URL

       Firewall Builder home page is located at the following URL: http://www.fwbuilder.org/

BUGS

       Please report bugs using bug tracking system on SourceForge:

       http://sourceforge.net/tracker/?group_id=5314&atid=105314

SEE ALSO

       fwbuilder(1), fwb_ipt(1), fwb_ipf(1)

FWB
																	 fwb_pf(1)