NAME

       fwb_ipf - Policy compiler for ipfilter

SYNOPSIS

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

DESCRIPTION

       fwb_ipf  is  a  firewall policy compiler component of Firewall Builder (see fwbuilder(1)).
       This compiler generates code for ipfilter. Compiler reads objects definitions and firewall
       description  from  the  data  file  specified  with  "-f"  option  and  generates ipfilter
       configuration 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 simple shell script that flushes current
       policy,  loads  new  filter  and  nat  rules  and  then  activates   ipfilter.    IPFilter
       configuration  file  name  starts  with the name of the firewall object, plus "-ipf.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
              ipfilter 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 ipf returned in version 1.0.1 of Firewall Builder

       Supported features:

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

       o      negation in policy rules

       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      negation in NAT

       o      custom services

       Features that won't 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_pf(1)