mirror of
https://github.com/vincentmli/bpfire.git
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293 lines
9.2 KiB
Perl
293 lines
9.2 KiB
Perl
#!/usr/bin/perl
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###############################################################################
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# #
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# IPFire.org - A linux based firewall #
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# Copyright (C) 2007-2011 IPFire Team #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <http://www.gnu.org/licenses/>. #
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# #
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###############################################################################
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use strict;
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# enable only the following on debugging purpose
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#use warnings;
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require '/var/ipfire/general-functions.pl';
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require "${General::swroot}/lang.pl";
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my %outfwsettings = ();
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my %checked = ();
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my %selected= () ;
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my %netsettings = ();
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my $errormessage = "";
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my $configentry = "";
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my @configs = ();
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my @configline = ();
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my $p2pentry = "";
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my @p2ps = ();
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my @p2pline = ();
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my $CMD = "";
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my $P2PSTRING = "";
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my $DEBUG = 0;
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my $configfile = "/var/ipfire/outgoing/rules";
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my $p2pfile = "/var/ipfire/outgoing/p2protocols";
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### Values that have to be initialized
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$outfwsettings{'ACTION'} = '';
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$outfwsettings{'VALID'} = 'yes';
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$outfwsettings{'EDIT'} = 'no';
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$outfwsettings{'NAME'} = '';
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$outfwsettings{'SNET'} = '';
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$outfwsettings{'SIP'} = '';
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$outfwsettings{'SPORT'} = '';
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$outfwsettings{'SMAC'} = '';
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$outfwsettings{'DIP'} = '';
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$outfwsettings{'DPORT'} = '';
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$outfwsettings{'PROT'} = '';
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$outfwsettings{'STATE'} = '';
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$outfwsettings{'DISPLAY_DIP'} = '';
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$outfwsettings{'DISPLAY_DPORT'} = '';
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$outfwsettings{'DISPLAY_SMAC'} = '';
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$outfwsettings{'DISPLAY_SIP'} = '';
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$outfwsettings{'POLICY'} = 'MODE0';
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my @SOURCE = "";
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my $SOURCE = "";
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my $DESTINATION = "";
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my @PROTO = "";
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my $PROTO = "";
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my $DPORT = "";
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my $DEV = "";
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my $MAC = "";
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my $POLICY = "";
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my $DO = "";
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my $DAY = "";
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# read files
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&General::readhash("${General::swroot}/outgoing/settings", \%outfwsettings);
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&General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
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$netsettings{'RED_DEV'}=`cat /var/ipfire/red/iface`;
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$netsettings{'RED_IP'}=`cat /var/ipfire/red/local-ipaddress`;
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open( FILE, "< $configfile" ) or die "Unable to read $configfile";
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@configs = <FILE>;
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close FILE;
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if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
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$outfwsettings{'STATE'} = "ALLOW";
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$POLICY = "DROP";
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$DO = "ACCEPT";
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} elsif ( $outfwsettings{'POLICY'} eq 'MODE2' ) {
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$outfwsettings{'STATE'} = "DENY";
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$POLICY = "ACCEPT";
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$DO = "DROP -m comment --comment 'DROP_OUTGOINGFW '";
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}
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### Initialize IPTables
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system("/sbin/iptables --flush OUTGOINGFW >/dev/null 2>&1");
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system("/sbin/iptables --delete-chain OUTGOINGFW >/dev/null 2>&1");
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system("/sbin/iptables -N OUTGOINGFW >/dev/null 2>&1");
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system("/sbin/iptables --flush OUTGOINGFWMAC >/dev/null 2>&1");
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system("/sbin/iptables --delete-chain OUTGOINGFWMAC >/dev/null 2>&1");
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system("/sbin/iptables -N OUTGOINGFWMAC >/dev/null 2>&1");
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if ( $outfwsettings{'POLICY'} eq 'MODE0' ) {
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exit 0
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}
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if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
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$CMD = "/sbin/iptables -A OUTGOINGFW -m state --state ESTABLISHED,RELATED -j ACCEPT";
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if ($DEBUG) { print "$CMD\n"; } else { system("$CMD"); }
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$CMD = "/sbin/iptables -A OUTGOINGFWMAC -m state --state ESTABLISHED,RELATED -j ACCEPT";
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if ($DEBUG) { print "$CMD\n"; } else { system("$CMD"); }
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$CMD = "/sbin/iptables -A OUTGOINGFW -p icmp -j ACCEPT";
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if ($DEBUG) { print "$CMD\n"; } else { system("$CMD"); }
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$CMD = "/sbin/iptables -A OUTGOINGFWMAC -p icmp -j ACCEPT";
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if ($DEBUG) { print "$CMD\n"; } else { system("$CMD"); }
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}
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foreach $configentry (sort @configs)
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{
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@SOURCE = "";
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$DESTINATION = "";
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$PROTO = "";
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$DPORT = "";
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$DEV = "";
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$MAC = "";
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@configline = split( /\;/, $configentry );
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if ($outfwsettings{'STATE'} eq $configline[0]) {
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if ($configline[2] eq 'green') {
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@SOURCE = ("$netsettings{'GREEN_NETADDRESS'}/$netsettings{'GREEN_NETMASK'}");
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$DEV = $netsettings{'GREEN_DEV'};
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} elsif ($configline[2] eq 'red') {
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@SOURCE = ("$netsettings{'RED_IP'}");
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$DEV = "";
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} elsif ($configline[2] eq 'blue') {
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@SOURCE = ("$netsettings{'BLUE_NETADDRESS'}/$netsettings{'BLUE_NETMASK'}");
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$DEV = $netsettings{'BLUE_DEV'};
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} elsif ($configline[2] eq 'orange') {
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@SOURCE = ("$netsettings{'ORANGE_NETADDRESS'}/$netsettings{'ORANGE_NETMASK'}");
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$DEV = $netsettings{'ORANGE_DEV'};
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} elsif ($configline[2] eq 'ipsec') {
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@SOURCE = "";
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$DEV = "ipsec+";
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} elsif ($configline[2] eq 'ovpn') {
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@SOURCE = "";
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$DEV = "tun+";
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} elsif ($configline[2] eq 'ip') {
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@SOURCE = ("$configline[5]");
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$DEV = "";
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} elsif ($configline[2] eq 'mac') {
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@SOURCE = ("$configline[6]");
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$DEV = "";
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} elsif ($configline[2] eq 'all') {
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@SOURCE = ("0/0");
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$DEV = "";
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} else {
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if ( -e "/var/ipfire/outgoing/groups/ipgroups/$configline[2]" ) {
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@SOURCE = `cat /var/ipfire/outgoing/groups/ipgroups/$configline[2]`;
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} elsif ( -e "/var/ipfire/outgoing/groups/macgroups/$configline[2]" ) {
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@SOURCE = `cat /var/ipfire/outgoing/groups/macgroups/$configline[2]`;
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$configline[2] = "mac";
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}
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$DEV = "";
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}
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if ($configline[7]) { $DESTINATION = "$configline[7]"; } else { $DESTINATION = "0/0"; }
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if ($configline[3] eq 'tcp') {
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@PROTO = ("tcp");
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} elsif ($configline[3] eq 'udp') {
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@PROTO = ("udp");
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} elsif ($configline[3] eq 'esp') {
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@PROTO = ("esp");
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} elsif ($configline[3] eq 'gre') {
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@PROTO = ("gre");
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} else {
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@PROTO = ("tcp","udp");
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}
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foreach $PROTO (@PROTO){
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foreach $SOURCE (@SOURCE) {
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$SOURCE =~ s/\s//gi;
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if ( $SOURCE eq "" || $configline[1] eq "" ){next;}
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if ( ( $configline[6] ne "" || $configline[2] eq 'mac' ) && $configline[2] ne 'all'){
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$SOURCE =~ s/[^a-zA-Z0-9]/:/gi;
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$CMD = "/sbin/iptables -A OUTGOINGFWMAC -m mac --mac-source $SOURCE -d $DESTINATION -p $PROTO";
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} else {
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$CMD = "/sbin/iptables -A OUTGOINGFW -s $SOURCE -d $DESTINATION -p $PROTO";
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}
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if ($configline[8] && ( $configline[3] ne 'esp' || $configline[3] ne 'gre') ) {
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$DPORT = "$configline[8]";
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$CMD = "$CMD -m multiport --destination-port $DPORT";
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}
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if ($DEV) {
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$CMD = "$CMD -i $DEV";
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}
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if ($configline[17] && $configline[18]) {
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$DAY = "";
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if ($configline[10]){$DAY = "Mon,"}
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if ($configline[11]){$DAY .= "Tue,"}
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if ($configline[12]){$DAY .= "Wed,"}
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if ($configline[13]){$DAY .= "Thu,"}
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if ($configline[14]){$DAY .= "Fri,"}
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if ($configline[15]){$DAY .= "Sat,"}
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if ($configline[16]){$DAY .= "Sun"}
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$CMD = "$CMD -m time --timestart $configline[17] --timestop $configline[18] --weekdays $DAY";
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}
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$CMD = "$CMD -o $netsettings{'RED_DEV'}";
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if ( $configline[9] eq $Lang::tr{'aktiv'} && $outfwsettings{'POLICY'} eq 'MODE1' ) {
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if ($DEBUG) {
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print "$CMD -m limit --limit 10/minute -j LOG --log-prefix 'LOG_OUTGOINGFW '\n";
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} else {
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system("$CMD -m limit --limit 10/minute -j LOG --log-prefix 'LOG_OUTGOINGFW '");
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}
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} elsif ( $configline[9] eq $Lang::tr{'aktiv'} && $outfwsettings{'POLICY'} eq 'MODE2' ) {
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if ($DEBUG) {
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print "$CMD -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW '\n";
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} else {
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system("$CMD -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW '");
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}
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}
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if ($DEBUG) {
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print "$CMD -j $DO\n";
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} else {
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system("$CMD -j $DO");
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}
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}
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}
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}
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}
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### Do the P2P-Stuff here
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open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
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@p2ps = <FILE>;
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close FILE;
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$CMD = "/sbin/iptables -A OUTGOINGFW -m ipp2p";
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foreach $p2pentry (sort @p2ps)
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{
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@p2pline = split( /\;/, $p2pentry );
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if ( $outfwsettings{'POLICY'} eq 'MODE2' ) {
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$DO = "DROP";
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if ("$p2pline[2]" eq "off") {
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$P2PSTRING = "$P2PSTRING --$p2pline[1]";
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}
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} else {
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$DO = "ACCEPT";
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if ("$p2pline[2]" eq "on") {
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$P2PSTRING = "$P2PSTRING --$p2pline[1]";
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}
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}
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}
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if ($P2PSTRING) {
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if ($DEBUG) {
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print "$CMD $P2PSTRING -j $DO\n";
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} else {
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system("$CMD $P2PSTRING -j $DO");
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}
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}
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if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
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if ( $outfwsettings{'MODE1LOG'} eq 'on' ) {
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$CMD = "/sbin/iptables -A OUTGOINGFW -o $netsettings{'RED_DEV'} -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW '";
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if ($DEBUG) {
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print "$CMD\n";
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} else {
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system("$CMD");
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}
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}
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$CMD = "/sbin/iptables -A OUTGOINGFW -o $netsettings{'RED_DEV'} -j DROP -m comment --comment 'DROP_OUTGOINGFW '";
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if ($DEBUG) {
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print "$CMD\n";
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} else {
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system("$CMD");
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}
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} |