[people/teissler/ipfire-2.x.git] / config / forwardfw / rules.pl

#!/usr/bin/perl
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2013 Alexander Marx <amarx@ipfire.org>                        #
#                                                                             #
# 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;
use Time::Local;
no warnings 'uninitialized';

# enable only the following on debugging purpose
#use warnings;
#use CGI::Carp 'fatalsToBrowser';

my %fwdfwsettings=();
my %defaultNetworks=();
my %configfwdfw=();
my %color=();
my %icmptypes=();
my %ovpnSettings=();
my %customgrp=();
our %sourcehash=();
our %targethash=();
my @timeframe=();
my %configinputfw=();
my %configoutgoingfw=();
my %confignatfw=();
my %aliases=();
my @DPROT=();
my @p2ps=();
require '/var/ipfire/general-functions.pl';
require "${General::swroot}/lang.pl";
require "${General::swroot}/forward/bin/firewall-lib.pl";

my $configfwdfw		= "${General::swroot}/forward/config";
my $configinput	    = "${General::swroot}/forward/input";
my $configoutgoing  = "${General::swroot}/forward/outgoing";
my $p2pfile			= "${General::swroot}/forward/p2protocols";
my $configgrp		= "${General::swroot}/fwhosts/customgroups";
my $netsettings		= "${General::swroot}/ethernet/settings";
my $errormessage='';
my $orange;
my $green;
my $blue;
my ($TYPE,$PROT,$SPROT,$DPROT,$SPORT,$DPORT,$TIME,$TIMEFROM,$TIMETILL,$SRC_TGT);
my $CHAIN="FORWARDFW";
my $conexists='off';
my $command = 'iptables -A';
my $dnat='';
my $snat='';
&General::readhash("${General::swroot}/forward/settings", \%fwdfwsettings);
&General::readhash("$netsettings", \%defaultNetworks);
&General::readhasharray($configfwdfw, \%configfwdfw);
&General::readhasharray($configinput, \%configinputfw);
&General::readhasharray($configoutgoing, \%configoutgoingfw);
&General::readhasharray($configgrp, \%customgrp);
&General::get_aliases(\%aliases);

#check if we have an internetconnection
open (CONN,"/var/ipfire/red/iface");
my $con = <CONN>;
close(CONN);
if (-f "/var/ipfire/red/active"){
	$conexists='on';
}
open (CONN1,"/var/ipfire/red/local-ipaddress");
my $redip = <CONN1>;
close(CONN1);
################################
#    DEBUG/TEST                #
################################
my $MODE=0;     # 0 - normal operation
				# 1 - print configline and rules to console	
				# 
################################		
my $param=shift;

if($param eq 'flush'){
	if ($MODE eq '1'){
		print " Flushing chains...\n";
	}
	&flush;
}else{
	if ($MODE eq '1'){
		print " Flushing chains...\n";
	}
	&flush;
	if ($MODE eq '1'){
		print " Preparing rules...\n";
	}
	&preparerules;
	if($MODE eq '0'){
		if ($fwdfwsettings{'POLICY'} eq 'MODE1'){
			&p2pblock;
			system ("/usr/sbin/firewall-policy"); 
		}elsif($fwdfwsettings{'POLICY'} eq 'MODE2'){
			&p2pblock;
			system ("iptables -A $CHAIN -m conntrack --ctstate NEW -j ACCEPT");
			system ("/usr/sbin/firewall-policy");
			system ("/etc/sysconfig/firewall.local reload");
		}
	}
}
sub flush
{
	system ("iptables -F FORWARDFW");
	system ("iptables -F INPUTFW");
	system ("iptables -F OUTGOINGFW");
	system ("iptables -t nat -F NAT_DESTINATION");
	system ("iptables -t nat -F NAT_SOURCE");
}			
sub preparerules
{
	if (! -z  "${General::swroot}/forward/config"){
		&buildrules(\%configfwdfw);
	}
	if (! -z  "${General::swroot}/forward/input"){
		&buildrules(\%configinputfw);
	}
	if (! -z  "${General::swroot}/forward/outgoing"){
		&buildrules(\%configoutgoingfw);
	}
}
sub buildrules
{
	my $hash=shift;
	my $STAG;
	my $natip;
	my $snatport;
	my $fireport;
	my $nat;
	my $fwaccessdport;
	my $natchain;
	my $icmptype;
	foreach my $key (sort {$a <=> $b} keys %$hash){
		next if (($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1') && $conexists eq 'off' );
		$command="iptables -A";
		if ($$hash{$key}[28] eq 'ON'){
			$command='iptables -t nat -A';
			$natip=&get_nat_ip($$hash{$key}[29],$$hash{$key}[31]);
			if($$hash{$key}[31] eq 'dnat'){
				$nat='DNAT';
				if ($$hash{$key}[30] =~ /\|/){
					$$hash{$key}[30]=~ tr/|/,/;
					$fireport='-m multiport --dport '.$$hash{$key}[30];
				}else{
					$fireport='--dport '.$$hash{$key}[30] if ($$hash{$key}[30]>0);
				}
			}else{
				$nat='SNAT';
			}
		}
		$STAG='';
		if($$hash{$key}[2] eq 'ON'){
			#get source ip's
			if ($$hash{$key}[3] eq 'cust_grp_src'){
				foreach my $grp (sort {$a <=> $b} keys %customgrp){
						if($customgrp{$grp}[0] eq $$hash{$key}[4]){
						&get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"src");
					}
				}
			}else{
				&get_address($$hash{$key}[3],$$hash{$key}[4],"src");
			}
			#get target ip's
			if ($$hash{$key}[5] eq 'cust_grp_tgt'){
				foreach my $grp (sort {$a <=> $b} keys %customgrp){
					if($customgrp{$grp}[0] eq $$hash{$key}[6]){
						&get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"tgt");
					}
				}
			}elsif($$hash{$key}[5] eq 'ipfire' ){
				if($$hash{$key}[6] eq 'GREEN'){
					$targethash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
				}
				if($$hash{$key}[6] eq 'BLUE'){
					$targethash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
				}
				if($$hash{$key}[6] eq 'ORANGE'){
					$targethash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
				}
				if($$hash{$key}[6] eq 'ALL'){
					$targethash{$key}[0]='0.0.0.0/0';
				}
				if($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1'){
					open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
					$targethash{$key}[0]= <FILE>;
					close(FILE);
				}else{
					foreach my $alias (sort keys %aliases){
						if ($$hash{$key}[6] eq $alias){
							$targethash{$key}[0]=$aliases{$alias}{'IPT'};
						}
					}
				}
			}else{
				&get_address($$hash{$key}[5],$$hash{$key}[6],"tgt");
			}
			##get source prot and port
			$SRC_TGT='SRC';
			$SPROT = &get_prot($hash,$key);
			$SPORT = &get_port($hash,$key);
			$SRC_TGT='';

			##get target prot and port
			$DPROT=&get_prot($hash,$key);

			if ($DPROT eq ''){$DPROT=' ';}				
			@DPROT=split(",",$DPROT);

			#get time if defined
			if($$hash{$key}[18] eq 'ON'){
				my ($time1,$time2,$daylight);
				my $daylight=$$hash{$key}[28];
				$time1=&get_time($$hash{$key}[26],$daylight);
				$time2=&get_time($$hash{$key}[27],$daylight);
				if($$hash{$key}[19] ne ''){push (@timeframe,"Mon");}
				if($$hash{$key}[20] ne ''){push (@timeframe,"Tue");}
				if($$hash{$key}[21] ne ''){push (@timeframe,"Wed");}
				if($$hash{$key}[22] ne ''){push (@timeframe,"Thu");}
				if($$hash{$key}[23] ne ''){push (@timeframe,"Fri");}
				if($$hash{$key}[24] ne ''){push (@timeframe,"Sat");}
				if($$hash{$key}[25] ne ''){push (@timeframe,"Sun");}
				$TIME=join(",",@timeframe);
				
				$TIMEFROM="--timestart $time1 ";
				$TIMETILL="--timestop $time2 ";
				$TIME="-m time --weekdays $TIME $TIMEFROM $TIMETILL";
			}
			if ($MODE eq '1'){	
				print "NR:$key ";
				foreach my $i (0 .. $#{$$hash{$key}}){
					print "$i: $$hash{$key}[$i]  ";
				}
				print "\n";
				print"##################################\n";
				#print rules to console
				foreach my $DPROT (@DPROT){
					$DPORT = &get_port($hash,$key,$DPROT);
					if ($SPROT ne ''){$PROT=$SPROT;}else{$PROT=$DPROT;}
					$PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
					foreach my $a (sort keys %sourcehash){
						foreach my $b (sort keys %targethash){
							if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
								if($SPROT eq '' || $SPROT eq $DPROT || $DPROT eq ' '){
									if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
									if(substr($DPORT, 2, 4) eq 'icmp'){
										my @icmprule= split(",",substr($DPORT, 12,));
										foreach (@icmprule){
											$icmptype="--icmp-type ";
											if ($_ eq "BLANK") {
													$icmptype="";
													$_="";
											}
											if ($$hash{$key}[17] eq 'ON'){
												print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG\n";
											}
												print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]\n";
										}
									}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
										$natchain='NAT_DESTINATION';
										if ($$hash{$key}[17] eq 'ON'){
											print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
										}
										my ($ip,$sub) =split("/",$targethash{$b}[0]);
										print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip$DPORT\n";
										$DPORT =~ s/\-/:/g;
										if ($DPORT){
											$fwaccessdport="--dport ".substr($DPORT,1,);
										}elsif(! $DPORT && $$hash{$key}[30] ne ''){
											if ($$hash{$key}[30]=~m/|/i){
												$$hash{$key}[30] =~ s/\|/,/g;
												$fwaccessdport="-m multiport --dport $$hash{$key}[30]";
											}else{
												$fwaccessdport="--dport $$hash{$key}[30]";
											}
										}
										print "iptables -A FORWARDFW $PROT -i $con $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
										next;
									}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
										$natchain='NAT_SOURCE';
										print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to $natip\n";
									}
									if ($$hash{$key}[17] eq 'ON' ){
											print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
									}
									if ($PROT ne '-p ICMP'){
										print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
									}
								}				
							}
						}
					}
					print"\n";
				}
			}elsif($MODE eq '0'){
				foreach my $DPROT (@DPROT){
					$DPORT = &get_port($hash,$key,$DPROT);
					if ($SPROT ne ''){$PROT=$SPROT;}else{$PROT=$DPROT;}
					$PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
					foreach my $a (sort keys %sourcehash){
						foreach my $b (sort keys %targethash){
							if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
								if($SPROT eq '' || $SPROT eq $DPROT || $DPROT eq ' '){
									if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
									#Process ICMP RULE
									if(substr($DPORT, 2, 4) eq 'icmp'){
										my @icmprule= split(",",substr($DPORT, 12,));
										foreach (@icmprule){
											$icmptype="--icmp-type ";
											if ($_ eq "BLANK") {
													$icmptype="";
													$_="";
											}
											if ($$hash{$key}[17] eq 'ON'){
												system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG");
											}
												system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]");
										}
									#PROCESS DNAT RULE (Portforward)
									}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
										$natchain='NAT_DESTINATION';
										if ($$hash{$key}[17] eq 'ON'){
											system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
										}
										my ($ip,$sub) =split("/",$targethash{$b}[0]);
										system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip$DPORT\n";
										$DPORT =~ s/\-/:/g;
										if ($DPORT){
											$fwaccessdport="--dport ".substr($DPORT,1,);
										}elsif(! $DPORT && $$hash{$key}[30] ne ''){
											if ($$hash{$key}[30]=~m/|/i){
												$$hash{$key}[30] =~ s/\|/,/g;
												$fwaccessdport="-m multiport --dport $$hash{$key}[30]";
											}else{
												$fwaccessdport="--dport $$hash{$key}[30]";
											}
										}
										system "iptables -A FORWARDFW $PROT -i $con $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
										next;
									#PROCESS SNAT RULE
									}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
										$natchain='NAT_SOURCE';
										system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to $natip\n";
									}
									if ($$hash{$key}[17] eq 'ON' && substr($DPORT, 2, 4) ne 'icmp'){
										system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
									}
									#PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
									if ($PROT ne '-p ICMP'){
										system "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
									}
								}				
							}
						}
					}
				}
			}
		}
		%sourcehash=();
		%targethash=();
		undef $TIME;
		undef $TIMEFROM;
		undef $TIMETILL;
		undef $fireport;
	}
}
sub get_nat_ip
{
	my $val=shift;
	my $type=shift;
	my $result;
	if($val eq 'RED' || $val eq 'GREEN' || $val eq 'ORANGE' || $val eq 'BLUE'){
		$result=$defaultNetworks{$val.'_ADDRESS'};
	}elsif($val eq 'ALL'){
		$result='-i '.$con;
	}elsif($val eq 'Default IP' && $type eq 'dnat'){
		$result='-d '.$redip;
	}elsif($val eq 'Default IP' && $type eq 'snat'){
		$result=$redip;
	}else{
		foreach my $al (sort keys %aliases){
			if($val eq $al && $type eq 'dnat'){
				$result='-d '.$aliases{$al}{'IPT'};
			}elsif($val eq $al && $type eq 'snat'){
				$result=$aliases{$al}{'IPT'};
			}
		}
	}
	return $result;
}
sub get_time
{
	my $val=shift;
	my $val1=shift;
	my $time;
	my $minutes;
	my $ruletime;
	$minutes = &utcmin($val);
	$ruletime = $minutes + &time_get_utc($val);
	if ($ruletime < 0){$ruletime +=1440;}
	if ($ruletime > 1440){$ruletime -=1440;}
	$time=sprintf "%02d:%02d", $ruletime / 60, $ruletime % 60;
	return $time;
}
sub time_get_utc
{
	# Calculates the UTCtime from a given time
	my $val=shift;
	my @localtime=localtime(time);
	my @gmtime=gmtime(time);
	my $diff = ($gmtime[2]*60+$gmtime[1]%60)-($localtime[2]*60+$localtime[1]%60);
	return $diff;
}
sub utcmin
{
	my $ruletime=shift;
	my ($hrs,$min) = split(":",$ruletime);
	my $newtime = $hrs*60+$min;
	return $newtime;
}
sub p2pblock
{
	my $P2PSTRING;
	my $DO;
	open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
	@p2ps = <FILE>;
	close FILE;
	my $CMD = "-m ipp2p";
	foreach my $p2pentry (sort @p2ps) {
		my @p2pline = split( /\;/, $p2pentry );
		if ( $fwdfwsettings{'POLICY'} eq 'MODE1' ) {
			$DO = "ACCEPT";
			if ("$p2pline[2]" eq "on") {
				$P2PSTRING = "$P2PSTRING --$p2pline[1]";
			}
		}else {
			$DO = "RETURN";
			if ("$p2pline[2]" eq "off") {
				$P2PSTRING = "$P2PSTRING --$p2pline[1]";
			}
		}
	}
	if ($MODE eq 1){
		if($P2PSTRING){
			print"/sbin/iptables -A FORWARDFW $CMD $P2PSTRING -j $DO\n";
		}
	}else{
		if($P2PSTRING){
			system("/sbin/iptables -A FORWARDFW $CMD $P2PSTRING -j $DO");
		}
	}
}
sub get_address
{
	my $base=shift; #source of checking ($configfwdfw{$key}[x] or groupkey
	my $base2=shift;
	my $type=shift; #src or tgt
	my $hash;
	if ($type eq 'src'){
		$hash=\%sourcehash;	
	}else{
		$hash=\%targethash;
	}
	my $key = &General::findhasharraykey($hash);
	if($base eq 'src_addr' || $base eq 'tgt_addr' ){
		if (&General::validmac($base2)){
			$$hash{$key}[0] = "-m mac --mac-source $base2";
		}else{
			$$hash{$key}[0] = $base2;
		}
	}elsif($base eq 'std_net_src' || $base eq 'std_net_tgt' || $base eq 'Standard Network'){
		$$hash{$key}[0]=&fwlib::get_std_net_ip($base2,$con);
	}elsif($base eq 'cust_net_src' || $base eq 'cust_net_tgt' || $base eq 'Custom Network'){
		$$hash{$key}[0]=&fwlib::get_net_ip($base2);
	}elsif($base eq 'cust_host_src' || $base eq 'cust_host_tgt' || $base eq 'Custom Host'){
		$$hash{$key}[0]=&fwlib::get_host_ip($base2,$type);
	}elsif($base eq 'ovpn_net_src' || $base eq 'ovpn_net_tgt' || $base eq 'OpenVPN static network'){
		$$hash{$key}[0]=&fwlib::get_ovpn_net_ip($base2,1);
	}elsif($base eq 'ovpn_host_src' ||$base eq 'ovpn_host_tgt' || $base eq 'OpenVPN static host'){
		$$hash{$key}[0]=&fwlib::get_ovpn_host_ip($base2,33);
	}elsif($base eq 'ovpn_n2n_src' ||$base eq 'ovpn_n2n_tgt' || $base eq 'OpenVPN N-2-N'){
		$$hash{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,11);
	}elsif($base eq 'ipsec_net_src' || $base eq 'ipsec_net_tgt' || $base eq 'IpSec Network'){
		$$hash{$key}[0]=&fwlib::get_ipsec_net_ip($base2,11);
	}elsif($base eq 'ipfire_src' ){
		if($base2 eq 'GREEN'){
			$$hash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
		}
		if($base2 eq 'BLUE'){
			$$hash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
		}
		if($base2 eq 'ORANGE'){
			$$hash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
		}
		if($base2 eq 'ALL'){
			$$hash{$key}[0]='0.0.0.0/0';
		}
		if($base2 eq 'RED' || $base2 eq 'RED1'){
			open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
			$$hash{$key}[0]= <FILE>;
			close(FILE);
		}else{
			foreach my $alias (sort keys %aliases){
				if ($base2 eq $alias){
					$$hash{$key}[0]=$aliases{$alias}{'IPT'};
				}
			}
		}
	}
}
sub get_prot
{
	my $hash=shift;
	my $key=shift;
	if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
		if ($$hash{$key}[10] ne ''){
			return"$$hash{$key}[8]";
		}elsif($$hash{$key}[9] ne ''){
			return"$$hash{$key}[8]";
		}else{
			return "$$hash{$key}[8]";
		}
	}elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
		if ($$hash{$key}[14] eq 'TGT_PORT'){
			if ($$hash{$key}[15] ne ''){
				return "$$hash{$key}[12]";
			}elsif($$hash{$key}[13] ne ''){
				return "$$hash{$key}[12]";
			}else{
				return "$$hash{$key}[12]";
			}
		}elsif($$hash{$key}[14] eq 'cust_srv'){
			return &fwlib::get_srv_prot($$hash{$key}[15]);
			
		}elsif($$hash{$key}[14] eq 'cust_srvgrp'){
			return &fwlib::get_srvgrp_prot($$hash{$key}[15]);
		}
	}
	#DNAT
	if ($SRC_TGT eq '' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[11] eq '' && $$hash{$key}[12] ne ''){
		return "$$hash{$key}[12]";
	}
}
sub get_port
{
	my $hash=shift;
	my $key=shift;
	my $prot=shift;
	if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
		if ($$hash{$key}[10] ne ''){
			$$hash{$key}[10] =~ s/\|/,/g;
			if(index($$hash{$key}[10],",") > 0){
				return "-m multiport --sport $$hash{$key}[10] ";
			}else{
				if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ||($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat')  ){
					return "--sport $$hash{$key}[10] ";
				}else{
					return ":$$hash{$key}[10]";
				}
			}
		}elsif($$hash{$key}[9] ne '' && $$hash{$key}[9] ne 'All ICMP-Types'){
			return "--icmp-type $$hash{$key}[9] ";
		}elsif($$hash{$key}[9] eq 'All ICMP-Types'){
			return;
		}
	}elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
		if($$hash{$key}[14] eq 'TGT_PORT'){
			if ($$hash{$key}[15] ne ''){
				$$hash{$key}[15] =~ s/\|/,/g;
				if(index($$hash{$key}[15],",") > 0){
					return "-m multiport --dport $$hash{$key}[15] ";
				}else{
					if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ){
						return "--dport $$hash{$key}[15] ";
					 }else{
						 $$hash{$key}[15] =~ s/\:/-/g;
						 return ":$$hash{$key}[15]";
					 }
				}
			}elsif($$hash{$key}[13] ne '' && $$hash{$key}[13] ne 'All ICMP-Types'){
				return "--icmp-type $$hash{$key}[13] ";
			}elsif($$hash{$key}[13] ne '' && $$hash{$key}[13] eq 'All ICMP-Types'){
				return;
			}
		}elsif($$hash{$key}[14] eq 'cust_srv'){
			if ($prot ne 'ICMP'){
				if($$hash{$key}[31] eq 'dnat' && $$hash{$key}[28] eq 'ON'){
					return ":".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
				}else{
					return "--dport ".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
				}
			}elsif($prot eq 'ICMP' && $$hash{$key}[15] ne 'All ICMP-Types'){
				return "--icmp-type ".&fwlib::get_srv_port($$hash{$key}[15],3,$prot);
			}elsif($prot eq 'ICMP' && $$hash{$key}[15] eq 'All ICMP-Types'){
				return;
			}
		}elsif($$hash{$key}[14] eq 'cust_srvgrp'){
			if 	($prot ne 'ICMP'){
				return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
			}
			elsif($prot eq 'ICMP'){
				return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
			}
		}
	}
}
Commit	Line	Data
	1	#!/usr/bin/perl
	2	###############################################################################
	3	# #
	4	# IPFire.org - A linux based firewall #
	5	# Copyright (C) 2013 Alexander Marx <amarx@ipfire.org> #
	6	# #
	7	# This program is free software: you can redistribute it and/or modify #
	8	# it under the terms of the GNU General Public License as published by #
	9	# the Free Software Foundation, either version 3 of the License, or #
	10	# (at your option) any later version. #
	11	# #
	12	# This program is distributed in the hope that it will be useful, #
	13	# but WITHOUT ANY WARRANTY; without even the implied warranty of #
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
	15	# GNU General Public License for more details. #
	16	# #
	17	# You should have received a copy of the GNU General Public License #
	18	# along with this program. If not, see <http://www.gnu.org/licenses/>. #
	19	# #
	20	###############################################################################
	21
	22	use strict;
	23	use Time::Local;
	24	no warnings 'uninitialized';
	25
	26	# enable only the following on debugging purpose
	27	#use warnings;
	28	#use CGI::Carp 'fatalsToBrowser';
	29
	30	my %fwdfwsettings=();
	31	my %defaultNetworks=();
	32	my %configfwdfw=();
	33	my %color=();
	34	my %icmptypes=();
	35	my %ovpnSettings=();
	36	my %customgrp=();
	37	our %sourcehash=();
	38	our %targethash=();
	39	my @timeframe=();
	40	my %configinputfw=();
	41	my %configoutgoingfw=();
	42	my %confignatfw=();
	43	my %aliases=();
	44	my @DPROT=();
	45	my @p2ps=();
	46	require '/var/ipfire/general-functions.pl';
	47	require "${General::swroot}/lang.pl";
	48	require "${General::swroot}/forward/bin/firewall-lib.pl";
	49
	50	my $configfwdfw = "${General::swroot}/forward/config";
	51	my $configinput = "${General::swroot}/forward/input";
	52	my $configoutgoing = "${General::swroot}/forward/outgoing";
	53	my $p2pfile = "${General::swroot}/forward/p2protocols";
	54	my $configgrp = "${General::swroot}/fwhosts/customgroups";
	55	my $netsettings = "${General::swroot}/ethernet/settings";
	56	my $errormessage='';
	57	my $orange;
	58	my $green;
	59	my $blue;
	60	my ($TYPE,$PROT,$SPROT,$DPROT,$SPORT,$DPORT,$TIME,$TIMEFROM,$TIMETILL,$SRC_TGT);
	61	my $CHAIN="FORWARDFW";
	62	my $conexists='off';
	63	my $command = 'iptables -A';
	64	my $dnat='';
	65	my $snat='';
	66	&General::readhash("${General::swroot}/forward/settings", \%fwdfwsettings);
	67	&General::readhash("$netsettings", \%defaultNetworks);
	68	&General::readhasharray($configfwdfw, \%configfwdfw);
	69	&General::readhasharray($configinput, \%configinputfw);
	70	&General::readhasharray($configoutgoing, \%configoutgoingfw);
	71	&General::readhasharray($configgrp, \%customgrp);
	72	&General::get_aliases(\%aliases);
	73
	74	#check if we have an internetconnection
	75	open (CONN,"/var/ipfire/red/iface");
	76	my $con = <CONN>;
	77	close(CONN);
	78	if (-f "/var/ipfire/red/active"){
	79	$conexists='on';
	80	}
	81	open (CONN1,"/var/ipfire/red/local-ipaddress");
	82	my $redip = <CONN1>;
	83	close(CONN1);
	84	################################
	85	# DEBUG/TEST #
	86	################################
	87	my $MODE=0; # 0 - normal operation
	88	# 1 - print configline and rules to console
	89	#
	90	################################
	91	my $param=shift;
	92
	93	if($param eq 'flush'){
	94	if ($MODE eq '1'){
	95	print " Flushing chains...\n";
	96	}
	97	&flush;
	98	}else{
	99	if ($MODE eq '1'){
	100	print " Flushing chains...\n";
	101	}
	102	&flush;
	103	if ($MODE eq '1'){
	104	print " Preparing rules...\n";
	105	}
	106	&preparerules;
	107	if($MODE eq '0'){
	108	if ($fwdfwsettings{'POLICY'} eq 'MODE1'){
	109	&p2pblock;
	110	system ("/usr/sbin/firewall-policy");
	111	}elsif($fwdfwsettings{'POLICY'} eq 'MODE2'){
	112	&p2pblock;
	113	system ("iptables -A $CHAIN -m conntrack --ctstate NEW -j ACCEPT");
	114	system ("/usr/sbin/firewall-policy");
	115	system ("/etc/sysconfig/firewall.local reload");
	116	}
	117	}
	118	}
	119	sub flush
	120	{
	121	system ("iptables -F FORWARDFW");
	122	system ("iptables -F INPUTFW");
	123	system ("iptables -F OUTGOINGFW");
	124	system ("iptables -t nat -F NAT_DESTINATION");
	125	system ("iptables -t nat -F NAT_SOURCE");
	126	}
	127	sub preparerules
	128	{
	129	if (! -z "${General::swroot}/forward/config"){
	130	&buildrules(\%configfwdfw);
	131	}
	132	if (! -z "${General::swroot}/forward/input"){
	133	&buildrules(\%configinputfw);
	134	}
	135	if (! -z "${General::swroot}/forward/outgoing"){
	136	&buildrules(\%configoutgoingfw);
	137	}
	138	}
	139	sub buildrules
	140	{
	141	my $hash=shift;
	142	my $STAG;
	143	my $natip;
	144	my $snatport;
	145	my $fireport;
	146	my $nat;
	147	my $fwaccessdport;
	148	my $natchain;
	149	my $icmptype;
	150	foreach my $key (sort {$a <=> $b} keys %$hash){
	151	next if (($$hash{$key}[6] eq 'RED' \|\| $$hash{$key}[6] eq 'RED1') && $conexists eq 'off' );
	152	$command="iptables -A";
	153	if ($$hash{$key}[28] eq 'ON'){
	154	$command='iptables -t nat -A';
	155	$natip=&get_nat_ip($$hash{$key}[29],$$hash{$key}[31]);
	156	if($$hash{$key}[31] eq 'dnat'){
	157	$nat='DNAT';
	158	if ($$hash{$key}[30] =~ /\\|/){
	159	$$hash{$key}[30]=~ tr/\|/,/;
	160	$fireport='-m multiport --dport '.$$hash{$key}[30];
	161	}else{
	162	$fireport='--dport '.$$hash{$key}[30] if ($$hash{$key}[30]>0);
	163	}
	164	}else{
	165	$nat='SNAT';
	166	}
	167	}
	168	$STAG='';
	169	if($$hash{$key}[2] eq 'ON'){
	170	#get source ip's
	171	if ($$hash{$key}[3] eq 'cust_grp_src'){
	172	foreach my $grp (sort {$a <=> $b} keys %customgrp){
	173	if($customgrp{$grp}[0] eq $$hash{$key}[4]){
	174	&get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"src");
	175	}
	176	}
	177	}else{
	178	&get_address($$hash{$key}[3],$$hash{$key}[4],"src");
	179	}
	180	#get target ip's
	181	if ($$hash{$key}[5] eq 'cust_grp_tgt'){
	182	foreach my $grp (sort {$a <=> $b} keys %customgrp){
	183	if($customgrp{$grp}[0] eq $$hash{$key}[6]){
	184	&get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"tgt");
	185	}
	186	}
	187	}elsif($$hash{$key}[5] eq 'ipfire' ){
	188	if($$hash{$key}[6] eq 'GREEN'){
	189	$targethash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
	190	}
	191	if($$hash{$key}[6] eq 'BLUE'){
	192	$targethash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
	193	}
	194	if($$hash{$key}[6] eq 'ORANGE'){
	195	$targethash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
	196	}
	197	if($$hash{$key}[6] eq 'ALL'){
	198	$targethash{$key}[0]='0.0.0.0/0';
	199	}
	200	if($$hash{$key}[6] eq 'RED' \|\| $$hash{$key}[6] eq 'RED1'){
	201	open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
	202	$targethash{$key}[0]= <FILE>;
	203	close(FILE);
	204	}else{
	205	foreach my $alias (sort keys %aliases){
	206	if ($$hash{$key}[6] eq $alias){
	207	$targethash{$key}[0]=$aliases{$alias}{'IPT'};
	208	}
	209	}
	210	}
	211	}else{
	212	&get_address($$hash{$key}[5],$$hash{$key}[6],"tgt");
	213	}
	214	##get source prot and port
	215	$SRC_TGT='SRC';
	216	$SPROT = &get_prot($hash,$key);
	217	$SPORT = &get_port($hash,$key);
	218	$SRC_TGT='';
	219
	220	##get target prot and port
	221	$DPROT=&get_prot($hash,$key);
	222
	223	if ($DPROT eq ''){$DPROT=' ';}
	224	@DPROT=split(",",$DPROT);
	225
	226	#get time if defined
	227	if($$hash{$key}[18] eq 'ON'){
	228	my ($time1,$time2,$daylight);
	229	my $daylight=$$hash{$key}[28];
	230	$time1=&get_time($$hash{$key}[26],$daylight);
	231	$time2=&get_time($$hash{$key}[27],$daylight);
	232	if($$hash{$key}[19] ne ''){push (@timeframe,"Mon");}
	233	if($$hash{$key}[20] ne ''){push (@timeframe,"Tue");}
	234	if($$hash{$key}[21] ne ''){push (@timeframe,"Wed");}
	235	if($$hash{$key}[22] ne ''){push (@timeframe,"Thu");}
	236	if($$hash{$key}[23] ne ''){push (@timeframe,"Fri");}
	237	if($$hash{$key}[24] ne ''){push (@timeframe,"Sat");}
	238	if($$hash{$key}[25] ne ''){push (@timeframe,"Sun");}
	239	$TIME=join(",",@timeframe);
	240
	241	$TIMEFROM="--timestart $time1 ";
	242	$TIMETILL="--timestop $time2 ";
	243	$TIME="-m time --weekdays $TIME $TIMEFROM $TIMETILL";
	244	}
	245	if ($MODE eq '1'){
	246	print "NR:$key ";
	247	foreach my $i (0 .. $#{$$hash{$key}}){
	248	print "$i: $$hash{$key}[$i] ";
	249	}
	250	print "\n";
	251	print"##################################\n";
	252	#print rules to console
	253	foreach my $DPROT (@DPROT){
	254	$DPORT = &get_port($hash,$key,$DPROT);
	255	if ($SPROT ne ''){$PROT=$SPROT;}else{$PROT=$DPROT;}
	256	$PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
	257	foreach my $a (sort keys %sourcehash){
	258	foreach my $b (sort keys %targethash){
	259	if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' \|\| $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
	260	if($SPROT eq '' \|\| $SPROT eq $DPROT \|\| $DPROT eq ' '){
	261	if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
	262	if(substr($DPORT, 2, 4) eq 'icmp'){
	263	my @icmprule= split(",",substr($DPORT, 12,));
	264	foreach (@icmprule){
	265	$icmptype="--icmp-type ";
	266	if ($_ eq "BLANK") {
	267	$icmptype="";
	268	$_="";
	269	}
	270	if ($$hash{$key}[17] eq 'ON'){
	271	print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG\n";
	272	}
	273	print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]\n";
	274	}
	275	}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
	276	$natchain='NAT_DESTINATION';
	277	if ($$hash{$key}[17] eq 'ON'){
	278	print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
	279	}
	280	my ($ip,$sub) =split("/",$targethash{$b}[0]);
	281	print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip$DPORT\n";
	282	$DPORT =~ s/\-/:/g;
	283	if ($DPORT){
	284	$fwaccessdport="--dport ".substr($DPORT,1,);
	285	}elsif(! $DPORT && $$hash{$key}[30] ne ''){
	286	if ($$hash{$key}[30]=~m/\|/i){
	287	$$hash{$key}[30] =~ s/\\|/,/g;
	288	$fwaccessdport="-m multiport --dport $$hash{$key}[30]";
	289	}else{
	290	$fwaccessdport="--dport $$hash{$key}[30]";
	291	}
	292	}
	293	print "iptables -A FORWARDFW $PROT -i $con $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
	294	next;
	295	}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
	296	$natchain='NAT_SOURCE';
	297	print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to $natip\n";
	298	}
	299	if ($$hash{$key}[17] eq 'ON' ){
	300	print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
	301	}
	302	if ($PROT ne '-p ICMP'){
	303	print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
	304	}
	305	}
	306	}
	307	}
	308	}
	309	print"\n";
	310	}
	311	}elsif($MODE eq '0'){
	312	foreach my $DPROT (@DPROT){
	313	$DPORT = &get_port($hash,$key,$DPROT);
	314	if ($SPROT ne ''){$PROT=$SPROT;}else{$PROT=$DPROT;}
	315	$PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
	316	foreach my $a (sort keys %sourcehash){
	317	foreach my $b (sort keys %targethash){
	318	if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' \|\| $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
	319	if($SPROT eq '' \|\| $SPROT eq $DPROT \|\| $DPROT eq ' '){
	320	if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
	321	#Process ICMP RULE
	322	if(substr($DPORT, 2, 4) eq 'icmp'){
	323	my @icmprule= split(",",substr($DPORT, 12,));
	324	foreach (@icmprule){
	325	$icmptype="--icmp-type ";
	326	if ($_ eq "BLANK") {
	327	$icmptype="";
	328	$_="";
	329	}
	330	if ($$hash{$key}[17] eq 'ON'){
	331	system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG");
	332	}
	333	system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]");
	334	}
	335	#PROCESS DNAT RULE (Portforward)
	336	}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
	337	$natchain='NAT_DESTINATION';
	338	if ($$hash{$key}[17] eq 'ON'){
	339	system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
	340	}
	341	my ($ip,$sub) =split("/",$targethash{$b}[0]);
	342	system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip$DPORT\n";
	343	$DPORT =~ s/\-/:/g;
	344	if ($DPORT){
	345	$fwaccessdport="--dport ".substr($DPORT,1,);
	346	}elsif(! $DPORT && $$hash{$key}[30] ne ''){
	347	if ($$hash{$key}[30]=~m/\|/i){
	348	$$hash{$key}[30] =~ s/\\|/,/g;
	349	$fwaccessdport="-m multiport --dport $$hash{$key}[30]";
	350	}else{
	351	$fwaccessdport="--dport $$hash{$key}[30]";
	352	}
	353	}
	354	system "iptables -A FORWARDFW $PROT -i $con $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
	355	next;
	356	#PROCESS SNAT RULE
	357	}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
	358	$natchain='NAT_SOURCE';
	359	system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to $natip\n";
	360	}
	361	if ($$hash{$key}[17] eq 'ON' && substr($DPORT, 2, 4) ne 'icmp'){
	362	system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
	363	}
	364	#PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
	365	if ($PROT ne '-p ICMP'){
	366	system "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
	367	}
	368	}
	369	}
	370	}
	371	}
	372	}
	373	}
	374	}
	375	%sourcehash=();
	376	%targethash=();
	377	undef $TIME;
	378	undef $TIMEFROM;
	379	undef $TIMETILL;
	380	undef $fireport;
	381	}
	382	}
	383	sub get_nat_ip
	384	{
	385	my $val=shift;
	386	my $type=shift;
	387	my $result;
	388	if($val eq 'RED' \|\| $val eq 'GREEN' \|\| $val eq 'ORANGE' \|\| $val eq 'BLUE'){
	389	$result=$defaultNetworks{$val.'_ADDRESS'};
	390	}elsif($val eq 'ALL'){
	391	$result='-i '.$con;
	392	}elsif($val eq 'Default IP' && $type eq 'dnat'){
	393	$result='-d '.$redip;
	394	}elsif($val eq 'Default IP' && $type eq 'snat'){
	395	$result=$redip;
	396	}else{
	397	foreach my $al (sort keys %aliases){
	398	if($val eq $al && $type eq 'dnat'){
	399	$result='-d '.$aliases{$al}{'IPT'};
	400	}elsif($val eq $al && $type eq 'snat'){
	401	$result=$aliases{$al}{'IPT'};
	402	}
	403	}
	404	}
	405	return $result;
	406	}
	407	sub get_time
	408	{
	409	my $val=shift;
	410	my $val1=shift;
	411	my $time;
	412	my $minutes;
	413	my $ruletime;
	414	$minutes = &utcmin($val);
	415	$ruletime = $minutes + &time_get_utc($val);
	416	if ($ruletime < 0){$ruletime +=1440;}
	417	if ($ruletime > 1440){$ruletime -=1440;}
	418	$time=sprintf "%02d:%02d", $ruletime / 60, $ruletime % 60;
	419	return $time;
	420	}
	421	sub time_get_utc
	422	{
	423	# Calculates the UTCtime from a given time
	424	my $val=shift;
	425	my @localtime=localtime(time);
	426	my @gmtime=gmtime(time);
	427	my $diff = ($gmtime[2]60+$gmtime[1]%60)-($localtime[2]60+$localtime[1]%60);
	428	return $diff;
	429	}
	430	sub utcmin
	431	{
	432	my $ruletime=shift;
	433	my ($hrs,$min) = split(":",$ruletime);
	434	my $newtime = $hrs*60+$min;
	435	return $newtime;
	436	}
	437	sub p2pblock
	438	{
	439	my $P2PSTRING;
	440	my $DO;
	441	open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
	442	@p2ps = <FILE>;
	443	close FILE;
	444	my $CMD = "-m ipp2p";
	445	foreach my $p2pentry (sort @p2ps) {
	446	my @p2pline = split( /\;/, $p2pentry );
	447	if ( $fwdfwsettings{'POLICY'} eq 'MODE1' ) {
	448	$DO = "ACCEPT";
	449	if ("$p2pline[2]" eq "on") {
	450	$P2PSTRING = "$P2PSTRING --$p2pline[1]";
	451	}
	452	}else {
	453	$DO = "RETURN";
	454	if ("$p2pline[2]" eq "off") {
	455	$P2PSTRING = "$P2PSTRING --$p2pline[1]";
	456	}
	457	}
	458	}
	459	if ($MODE eq 1){
	460	if($P2PSTRING){
	461	print"/sbin/iptables -A FORWARDFW $CMD $P2PSTRING -j $DO\n";
	462	}
	463	}else{
	464	if($P2PSTRING){
	465	system("/sbin/iptables -A FORWARDFW $CMD $P2PSTRING -j $DO");
	466	}
	467	}
	468	}
	469	sub get_address
	470	{
	471	my $base=shift; #source of checking ($configfwdfw{$key}[x] or groupkey
	472	my $base2=shift;
	473	my $type=shift; #src or tgt
	474	my $hash;
	475	if ($type eq 'src'){
	476	$hash=\%sourcehash;
	477	}else{
	478	$hash=\%targethash;
	479	}
	480	my $key = &General::findhasharraykey($hash);
	481	if($base eq 'src_addr' \|\| $base eq 'tgt_addr' ){
	482	if (&General::validmac($base2)){
	483	$$hash{$key}[0] = "-m mac --mac-source $base2";
	484	}else{
	485	$$hash{$key}[0] = $base2;
	486	}
	487	}elsif($base eq 'std_net_src' \|\| $base eq 'std_net_tgt' \|\| $base eq 'Standard Network'){
	488	$$hash{$key}[0]=&fwlib::get_std_net_ip($base2,$con);
	489	}elsif($base eq 'cust_net_src' \|\| $base eq 'cust_net_tgt' \|\| $base eq 'Custom Network'){
	490	$$hash{$key}[0]=&fwlib::get_net_ip($base2);
	491	}elsif($base eq 'cust_host_src' \|\| $base eq 'cust_host_tgt' \|\| $base eq 'Custom Host'){
	492	$$hash{$key}[0]=&fwlib::get_host_ip($base2,$type);
	493	}elsif($base eq 'ovpn_net_src' \|\| $base eq 'ovpn_net_tgt' \|\| $base eq 'OpenVPN static network'){
	494	$$hash{$key}[0]=&fwlib::get_ovpn_net_ip($base2,1);
	495	}elsif($base eq 'ovpn_host_src' \|\|$base eq 'ovpn_host_tgt' \|\| $base eq 'OpenVPN static host'){
	496	$$hash{$key}[0]=&fwlib::get_ovpn_host_ip($base2,33);
	497	}elsif($base eq 'ovpn_n2n_src' \|\|$base eq 'ovpn_n2n_tgt' \|\| $base eq 'OpenVPN N-2-N'){
	498	$$hash{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,11);
	499	}elsif($base eq 'ipsec_net_src' \|\| $base eq 'ipsec_net_tgt' \|\| $base eq 'IpSec Network'){
	500	$$hash{$key}[0]=&fwlib::get_ipsec_net_ip($base2,11);
	501	}elsif($base eq 'ipfire_src' ){
	502	if($base2 eq 'GREEN'){
	503	$$hash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
	504	}
	505	if($base2 eq 'BLUE'){
	506	$$hash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
	507	}
	508	if($base2 eq 'ORANGE'){
	509	$$hash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
	510	}
	511	if($base2 eq 'ALL'){
	512	$$hash{$key}[0]='0.0.0.0/0';
	513	}
	514	if($base2 eq 'RED' \|\| $base2 eq 'RED1'){
	515	open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
	516	$$hash{$key}[0]= <FILE>;
	517	close(FILE);
	518	}else{
	519	foreach my $alias (sort keys %aliases){
	520	if ($base2 eq $alias){
	521	$$hash{$key}[0]=$aliases{$alias}{'IPT'};
	522	}
	523	}
	524	}
	525	}
	526	}
	527	sub get_prot
	528	{
	529	my $hash=shift;
	530	my $key=shift;
	531	if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
	532	if ($$hash{$key}[10] ne ''){
	533	return"$$hash{$key}[8]";
	534	}elsif($$hash{$key}[9] ne ''){
	535	return"$$hash{$key}[8]";
	536	}else{
	537	return "$$hash{$key}[8]";
	538	}
	539	}elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
	540	if ($$hash{$key}[14] eq 'TGT_PORT'){
	541	if ($$hash{$key}[15] ne ''){
	542	return "$$hash{$key}[12]";
	543	}elsif($$hash{$key}[13] ne ''){
	544	return "$$hash{$key}[12]";
	545	}else{
	546	return "$$hash{$key}[12]";
	547	}
	548	}elsif($$hash{$key}[14] eq 'cust_srv'){
	549	return &fwlib::get_srv_prot($$hash{$key}[15]);
	550
	551	}elsif($$hash{$key}[14] eq 'cust_srvgrp'){
	552	return &fwlib::get_srvgrp_prot($$hash{$key}[15]);
	553	}
	554	}
	555	#DNAT
	556	if ($SRC_TGT eq '' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[11] eq '' && $$hash{$key}[12] ne ''){
	557	return "$$hash{$key}[12]";
	558	}
	559	}
	560	sub get_port
	561	{
	562	my $hash=shift;
	563	my $key=shift;
	564	my $prot=shift;
	565	if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
	566	if ($$hash{$key}[10] ne ''){
	567	$$hash{$key}[10] =~ s/\\|/,/g;
	568	if(index($$hash{$key}[10],",") > 0){
	569	return "-m multiport --sport $$hash{$key}[10] ";
	570	}else{
	571	if($$hash{$key}[28] ne 'ON' \|\| ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') \|\|($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat') ){
	572	return "--sport $$hash{$key}[10] ";
	573	}else{
	574	return ":$$hash{$key}[10]";
	575	}
	576	}
	577	}elsif($$hash{$key}[9] ne '' && $$hash{$key}[9] ne 'All ICMP-Types'){
	578	return "--icmp-type $$hash{$key}[9] ";
	579	}elsif($$hash{$key}[9] eq 'All ICMP-Types'){
	580	return;
	581	}
	582	}elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
	583	if($$hash{$key}[14] eq 'TGT_PORT'){
	584	if ($$hash{$key}[15] ne ''){
	585	$$hash{$key}[15] =~ s/\\|/,/g;
	586	if(index($$hash{$key}[15],",") > 0){
	587	return "-m multiport --dport $$hash{$key}[15] ";
	588	}else{
	589	if($$hash{$key}[28] ne 'ON' \|\| ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ){
	590	return "--dport $$hash{$key}[15] ";
	591	}else{
	592	$$hash{$key}[15] =~ s/\:/-/g;
	593	return ":$$hash{$key}[15]";
	594	}
	595	}
	596	}elsif($$hash{$key}[13] ne '' && $$hash{$key}[13] ne 'All ICMP-Types'){
	597	return "--icmp-type $$hash{$key}[13] ";
	598	}elsif($$hash{$key}[13] ne '' && $$hash{$key}[13] eq 'All ICMP-Types'){
	599	return;
	600	}
	601	}elsif($$hash{$key}[14] eq 'cust_srv'){
	602	if ($prot ne 'ICMP'){
	603	if($$hash{$key}[31] eq 'dnat' && $$hash{$key}[28] eq 'ON'){
	604	return ":".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
	605	}else{
	606	return "--dport ".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
	607	}
	608	}elsif($prot eq 'ICMP' && $$hash{$key}[15] ne 'All ICMP-Types'){
	609	return "--icmp-type ".&fwlib::get_srv_port($$hash{$key}[15],3,$prot);
	610	}elsif($prot eq 'ICMP' && $$hash{$key}[15] eq 'All ICMP-Types'){
	611	return;
	612	}
	613	}elsif($$hash{$key}[14] eq 'cust_srvgrp'){
	614	if ($prot ne 'ICMP'){
	615	return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
	616	}
	617	elsif($prot eq 'ICMP'){
	618	return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
	619	}
	620	}
	621	}
	622	}