-#!/usr/bin/perl
-###############################################################################
-# #
-# IPFire.org - A linux based firewall #
-# Copyright (C) 2009 Michael Tremer & Christian Schmidt #
-# #
-# This program is free software: you can redistribute it and/or modify #
-# it under the terms of the GNU General Public License as published by #
-# the Free Software Foundation, either version 3 of the License, or #
-# (at your option) any later version. #
-# #
-# This program is distributed in the hope that it will be useful, #
-# but WITHOUT ANY WARRANTY; without even the implied warranty of #
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
-# GNU General Public License for more details. #
-# #
-# You should have received a copy of the GNU General Public License #
-# along with this program. If not, see <http://www.gnu.org/licenses/>. #
-# #
-###############################################################################
-
-
-use strict;
-# enable only the following on debugging purpose
-#use warnings;
-
-require '/var/ipfire/general-functions.pl';
-
-my %outfwsettings = ();
-my %checked = ();
-my %selected= () ;
-my %netsettings = ();
-my $errormessage = "";
-my $configentry = "";
-my @configs = ();
-my @configline = ();
-my $p2pentry = "";
-my @p2ps = ();
-my @p2pline = ();
-my @proto = ();
-my $CMD = "";
-my $P2PSTRING = "";
-
-my $DEBUG = 0;
-
-my $configfile = "/var/ipfire/outgoing/rules";
-my $p2pfile = "/var/ipfire/outgoing/p2protocols";
-
-### Values that have to be initialized
-$outfwsettings{'ACTION'} = '';
-$outfwsettings{'VALID'} = 'yes';
-$outfwsettings{'EDIT'} = 'no';
-$outfwsettings{'NAME'} = '';
-$outfwsettings{'SNET'} = '';
-$outfwsettings{'SIP'} = '';
-$outfwsettings{'SPORT'} = '';
-$outfwsettings{'SMAC'} = '';
-$outfwsettings{'DIP'} = '';
-$outfwsettings{'DPORT'} = '';
-$outfwsettings{'PROT'} = '';
-$outfwsettings{'STATE'} = '';
-$outfwsettings{'DISPLAY_DIP'} = '';
-$outfwsettings{'DISPLAY_DPORT'} = '';
-$outfwsettings{'DISPLAY_SMAC'} = '';
-$outfwsettings{'DISPLAY_SIP'} = '';
-$outfwsettings{'POLICY'} = 'MODE0';
-
-my $SOURCE = "";
-my $DESTINATION = "";
-my $PROTO = "";
-my $DPORT = "";
-my $DEV = "";
-my $MAC = "";
-my $POLICY = "";
-my $DO = "";
-my $DAY = "";
-
-# read files
-&General::readhash("${General::swroot}/outgoing/settings", \%outfwsettings);
-&General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
-
-$netsettings{'RED_DEV'}=`cat /var/ipfire/red/iface`;
-$netsettings{'RED_IP'}=`cat /var/ipfire/red/local-ipaddress`;
-
-open( FILE, "< $configfile" ) or die "Unable to read $configfile";
-@configs = <FILE>;
-close FILE;
-
-if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
- $outfwsettings{'STATE'} = "ALLOW";
- $POLICY = "DROP";
- $DO = "ACCEPT";
-} elsif ( $outfwsettings{'POLICY'} eq 'MODE2' ) {
- $outfwsettings{'STATE'} = "DENY";
- $POLICY = "ACCEPT";
- $DO = "DROP -m comment --comment 'DROP_OUTGOINGFW'";
-}
-
-### Initialize IPTables
-system("/sbin/iptables --flush OUTGOINGFW >/dev/null 2>&1");
-system("/sbin/iptables --delete-chain OUTGOINGFW >/dev/null 2>&1");
-system("/sbin/iptables -N OUTGOINGFW >/dev/null 2>&1");
-
-if ( $outfwsettings{'POLICY'} eq 'MODE0' ) {
- exit 0
-}
-
-if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
- $CMD = "/sbin/iptables -A OUTGOINGFW -m state --state ESTABLISHED,RELATED -j ACCEPT";
- if ($DEBUG) { print "$CMD\n"; } else { system("$CMD"); }
- $CMD = "/sbin/iptables -A OUTGOINGFW -p icmp -j ACCEPT";
- if ($DEBUG) { print "$CMD\n"; } else { system("$CMD"); }
-}
-
-foreach $configentry (sort @configs)
-{
- $SOURCE = "";
- $DESTINATION = "";
- $PROTO = "";
- $DPORT = "";
- $DEV = "";
- $MAC = "";
- @configline = split( /\;/, $configentry );
- if ($outfwsettings{'STATE'} eq $configline[0]) {
- if ($configline[2] eq 'green') {
- $SOURCE = "$netsettings{'GREEN_NETADDRESS'}/$netsettings{'GREEN_NETMASK'}";
- $DEV = $netsettings{'GREEN_DEV'};
- } elsif ($configline[2] eq 'red') {
- $SOURCE = "$netsettings{'RED_IP'}";
- $DEV = "";
- } elsif ($configline[2] eq 'blue') {
- $SOURCE = "$netsettings{'BLUE_NETADDRESS'}/$netsettings{'BLUE_NETMASK'}";
- $DEV = $netsettings{'BLUE_DEV'};
- } elsif ($configline[2] eq 'orange') {
- $SOURCE = "$netsettings{'ORANGE_NETADDRESS'}/$netsettings{'ORANGE_NETMASK'}";
- $DEV = $netsettings{'ORANGE_DEV'};
- } elsif ($configline[2] eq 'ip') {
- $SOURCE = "$configline[5]";
- $DEV = "";
- } else {
- $SOURCE = "0/0";
- $DEV = "";
- }
-
- if ($configline[7]) { $DESTINATION = "$configline[7]"; } else { $DESTINATION = "0/0"; }
-
- if ($configline[3] eq 'tcp') {
- @proto = ("tcp");
- } elsif ($configline[3] eq 'udp') {
- @proto = ("udp");
- } else {
- @proto = ("tcp", "udp");
- }
-
- foreach $PROTO (@proto) {
- $CMD = "/sbin/iptables -A OUTGOINGFW -s $SOURCE -d $DESTINATION -p $PROTO";
-
- if ($configline[8]) {
- $DPORT = "$configline[8]";
- $CMD = "$CMD --dport $DPORT";
- }
-
- if ($DEV) {
- $CMD = "$CMD -i $DEV";
- }
-
- if ($configline[6]) {
- $MAC = "$configline[6]";
- $CMD = "$CMD -m mac --mac-source $MAC";
- }
-
- if ($configline[17] && $configline[18]) {
- if ($configline[10]){$DAY = "Mon,"}
- if ($configline[11]){$DAY .= "Tue,"}
- if ($configline[12]){$DAY .= "Wed,"}
- if ($configline[13]){$DAY .= "Thu,"}
- if ($configline[14]){$DAY .= "Fri,"}
- if ($configline[15]){$DAY .= "Sat,"}
- if ($configline[16]){$DAY .= "Sun"}
- $CMD = "$CMD -m time --timestart $configline[17] --timestop $configline[18] --weekdays $DAY";
- }
-
- $CMD = "$CMD -o $netsettings{'RED_DEV'}";
-
- if ($configline[9] eq "aktiv") {
- if ($DEBUG) {
- print "$CMD -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW'\n";
- } else {
- system("$CMD -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW'");
- }
- }
-
- if ($DEBUG) {
- print "$CMD -j $DO\n";
- } else {
- system("$CMD -j $DO");
- }
- }
- }
-}
-
-### Do the P2P-Stuff here
-open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
-@p2ps = <FILE>;
-close FILE;
-
-$CMD = "/sbin/iptables -A OUTGOINGFW -m ipp2p";
-
-foreach $p2pentry (sort @p2ps)
-{
- @p2pline = split( /\;/, $p2pentry );
- if ( $outfwsettings{'POLICY'} eq 'MODE2' ) {
- $DO = "DROP";
- if ("$p2pline[2]" eq "off") {
- $P2PSTRING = "$P2PSTRING --$p2pline[1]";
- }
- } else {
- $DO = "ACCEPT";
- if ("$p2pline[2]" eq "on") {
- $P2PSTRING = "$P2PSTRING --$p2pline[1]";
- }
- }
-}
-if ($P2PSTRING) {
- if ($DEBUG) {
- print "$CMD $P2PSTRING -j $DO\n";
- } else {
- system("$CMD $P2PSTRING -j $DO");
- }
-}
-
-if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
- if ( $outfwsettings{'MODE1LOG'} eq 'on' ) {
- $CMD = "/sbin/iptables -A OUTGOINGFW -o $netsettings{'RED_DEV'} -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW'";
- if ($DEBUG) {
- print "$CMD\n";
- } else {
- system("$CMD");
- }
- }
-
- $CMD = "/sbin/iptables -A OUTGOINGFW -o $netsettings{'RED_DEV'} -j DROP -m comment --comment 'DROP_OUTGOINGFW'";
- if ($DEBUG) {
- print "$CMD\n";
- } else {
- system("$CMD");
- }
-}
\ No newline at end of file