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

#!/usr/bin/perl
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2012														  #
#                                                                             #
# 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/>.       #
#                                                                             #
###############################################################################
#																			  #
# Hi folks! I hope this code is useful for all. I needed something to handle  #
# my VPN Connections in a comfortable way. 				      				  #
# This script builds firewallrules from the webinterface                      #
###############################################################################

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 %configdmzfw=();
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 $configdmz		= "${General::swroot}/forward/dmz";
my $configfwdfw		= "${General::swroot}/forward/config";
my $configinput	    = "${General::swroot}/forward/input";
my $configoutgoing  = "${General::swroot}/forward/outgoing";
my $confignat		= "${General::swroot}/forward/nat";
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("$netsettings", \%defaultNetworks);
&General::readhasharray($configdmz, \%configdmzfw);
&General::readhasharray($configfwdfw, \%configfwdfw);
&General::readhasharray($configinput, \%configinputfw);
&General::readhasharray($configoutgoing, \%configoutgoingfw);
&General::readhasharray($confignat, \%confignatfw);
&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=1;     # 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'){
			$defaultNetworks{'GREEN_NETMASK'}=&General::iporsubtocidr($defaultNetworks{'GREEN_NETMASK'});
			$green="$defaultNetworks{'GREEN_ADDRESS'}/$defaultNetworks{'GREEN_NETMASK'}";
			if ($defaultNetworks{'BLUE_DEV'}){
				$defaultNetworks{'BLUE_NETMASK'}=&General::iporsubtocidr($defaultNetworks{'BLUE_NETMASK'});
				$blue="$defaultNetworks{'BLUE_ADDRESS'}/$defaultNetworks{'BLUE_NETMASK'}";
				#set default rules for BLUE
				system ("iptables -A $CHAIN -s $blue -d $green -j RETURN");
			}
			if ($defaultNetworks{'ORANGE_DEV'}){
				$defaultNetworks{'ORANGE_NETMASK'}=&General::iporsubtocidr($defaultNetworks{'ORANGE_NETMASK'});
				$orange="$defaultNetworks{'ORANGE_ADDRESS'}/$defaultNetworks{'ORANGE_NETMASK'}";
				#set default rules for DMZ
				system ("iptables -A $CHAIN -s $orange -d $green -j RETURN");
				if ($defaultNetworks{'BLUE_DEV'}){
					system ("iptables -A $CHAIN -s $orange -d $blue -j RETURN");
				}
			}
			&p2pblock;
			system ("iptables -A $CHAIN -m state --state NEW -j ACCEPT");
			system ("/usr/sbin/firewall-policy");
		}
	}
}
sub flush
{
	system ("iptables -F FORWARDFW");
	system ("iptables -F INPUTFW");
	system ("iptables -F OUTGOINGFW");
	system ("iptables -F PORTFWACCESS");
	system ("iptables -t nat -F NAT_DESTINATION");
	system ("iptables -t nat -F NAT_SOURCE");
}			
sub preparerules
{
	if (! -z  "${General::swroot}/forward/dmz"){
		&buildrules(\%configdmzfw);
	}
	if (! -z  "${General::swroot}/forward/config"){
		&buildrules(\%configfwdfw);
	}
	if (! -z  "${General::swroot}/forward/input"){
		&buildrules(\%configinputfw);
	}
	if (! -z  "${General::swroot}/forward/outgoing"){
		&buildrules(\%configoutgoingfw);
	}
	if (! -z  "${General::swroot}/forward/nat"){
		&buildrules(\%confignatfw);
	}
}
sub buildrules
{
	my $hash=shift;
	my $STAG;
	my $natip;
	my $snatport;
	my $fireport;
	foreach my $key (sort {$a <=> $b} keys %$hash){
		next if ($$hash{$key}[6] eq 'RED' && $conexists eq 'off' );
		if ($$hash{$key}[28] eq 'ON'){
			$command='iptables -t nat -A';
			$natip=&get_nat_ip($$hash{$key}[29]);
			if($$hash{$key}[31] eq 'dnat'){
				$$hash{$key}[0]='DNAT';
				$fireport='--dport '.$$hash{$key}[30] if ($$hash{$key}[30]>0);
			}else{
				$$hash{$key}[0]='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($$hash{$key}[6] eq 'Default IP'){
					open(FILE, "/var/ipfire/red/local-ipaddress") or die 'Unable to open config file.';
					$targethash{$key}[0]= <FILE>;
					close(FILE);
				}else{
					foreach my $alias (sort keys %aliases){
						if ($$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){
											if ($$hash{$key}[17] eq 'ON'){
												print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j LOG\n";
											}
											print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]\n";
										}
									}elsif($$hash{$key}[28] ne 'ON'){
										if ($$hash{$key}[17] eq 'ON'){
											print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
										}
										print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
									}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
										if ($$hash{$key}[17] eq 'ON'){
											print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
										}
										my ($ip,$sub) =split("/",$targethash{$b}[0]);
										print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $$hash{$key}[0]  --to $ip$DPORT\n";
										$DPORT =~ s/\-/:/g;
										my $fwaccessdport="--dport ".substr($DPORT,1,) if ($DPORT);
										print "iptables -A PORTFWACCESS $PROT -i $con -d $ip $fwaccessdport $TIME -j ACCEPT\n";
									}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[32] eq 'snat'){
										print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]  --to $natip$fireport\n";
									}
								}				
							}
						}
					}
					print"\n";
				}
			}elsif($MODE eq '0'){
				foreach my $DPROT (@DPROT){
					$DPORT = &get_port($hash,$key,$DPROT);
					if ($SPROT ne ''){$PROT=$SPROT;}else{$PROT=$DPROT;}
					$PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
					foreach my $a (sort keys %sourcehash){
						foreach my $b (sort keys %targethash){
							if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
								if($SPROT eq '' || $SPROT eq $DPROT || $DPROT eq ' '){
									if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
									if(substr($DPORT, 2, 4) eq 'icmp'){
										my @icmprule= split(",",substr($DPORT, 12,));
										foreach (@icmprule){
											if ($$hash{$key}[17] eq 'ON'){
												system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] -- icmp-type $_ $TIME -j LOG");
											}
											system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]");
										}
									}elsif($$hash{$key}[28] ne 'ON'){
										if ($$hash{$key}[17] eq 'ON'){
											system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
										}
										system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
									}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
										if ($$hash{$key}[17] eq 'ON'){
											system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
										}
										my ($ip,$sub) =split("/",$targethash{$b}[0]);
										system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $$hash{$key}[0]  --to $ip$DPORT\n";
										$DPORT =~ s/\-/:/g;
										my $fwaccessdport="--dport ".substr($DPORT,1,) if ($DPORT);
										system "iptables -A PORTFWACCESS $PROT -i $con -d $ip $fwaccessdport $TIME -j ACCEPT\n";
										
									}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
										if ($$hash{$key}[17] eq 'ON'){
											system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT '\n";
										}
										system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]  --to $natip$fireport\n";
									}
								}				
							}
						}
					}
				}
			}
		}
		%sourcehash=();
		%targethash=();
		undef $TIME;
		undef $TIMEFROM;
		undef $TIMETILL;
		undef $fireport;
	}
}
sub get_nat_ip
{
	my $val=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'){
		$result='-d '.$redip;
	}else{
		foreach my $al (sort keys %aliases){
			if($val eq $al){
				$result='-d '.$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{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,27);
	}elsif($base eq 'ipsec_net_src' || $base eq 'ipsec_net_tgt' || $base eq 'IpSec Network'){
		$$hash{$key}[0]=&fwlib::get_ipsec_net_ip($base2,11);
	}
}
sub get_prot
{
	my $hash=shift;
	my $key=shift;
	if ($$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]);
		}
	}
}
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($$hash{$key}[31] eq 'dnat'){
					return ":".&fwlib::get_srv_port($$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) 2012 #
	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	# Hi folks! I hope this code is useful for all. I needed something to handle #
	23	# my VPN Connections in a comfortable way. #
	24	# This script builds firewallrules from the webinterface #
	25	###############################################################################
	26
	27	use strict;
	28	use Time::Local;
	29	no warnings 'uninitialized';
	30
	31	# enable only the following on debugging purpose
	32	#use warnings;
	33	#use CGI::Carp 'fatalsToBrowser';
	34
	35	my %fwdfwsettings=();
	36	my %defaultNetworks=();
	37	my %configfwdfw=();
	38	my %color=();
	39	my %icmptypes=();
	40	my %ovpnSettings=();
	41	my %customgrp=();
	42	our %sourcehash=();
	43	our %targethash=();
	44	my @timeframe=();
	45	my %configinputfw=();
	46	my %configoutgoingfw=();
	47	my %configdmzfw=();
	48	my %confignatfw=();
	49	my %aliases=();
	50	my @DPROT=();
	51	my @p2ps=();
	52	require '/var/ipfire/general-functions.pl';
	53	require "${General::swroot}/lang.pl";
	54	require "${General::swroot}/forward/bin/firewall-lib.pl";
	55
	56	my $configdmz = "${General::swroot}/forward/dmz";
	57	my $configfwdfw = "${General::swroot}/forward/config";
	58	my $configinput = "${General::swroot}/forward/input";
	59	my $configoutgoing = "${General::swroot}/forward/outgoing";
	60	my $confignat = "${General::swroot}/forward/nat";
	61	my $p2pfile = "${General::swroot}/forward/p2protocols";
	62	my $configgrp = "${General::swroot}/fwhosts/customgroups";
	63	my $netsettings = "${General::swroot}/ethernet/settings";
	64	my $errormessage='';
	65	my $orange;
	66	my $green;
	67	my $blue;
	68	my ($TYPE,$PROT,$SPROT,$DPROT,$SPORT,$DPORT,$TIME,$TIMEFROM,$TIMETILL,$SRC_TGT);
	69	my $CHAIN="FORWARDFW";
	70	my $conexists='off';
	71	my $command = 'iptables -A';
	72	my $dnat='';
	73	my $snat='';
	74	&General::readhash("${General::swroot}/forward/settings", \%fwdfwsettings);
	75	&General::readhash("$netsettings", \%defaultNetworks);
	76	&General::readhasharray($configdmz, \%configdmzfw);
	77	&General::readhasharray($configfwdfw, \%configfwdfw);
	78	&General::readhasharray($configinput, \%configinputfw);
	79	&General::readhasharray($configoutgoing, \%configoutgoingfw);
	80	&General::readhasharray($confignat, \%confignatfw);
	81	&General::readhasharray($configgrp, \%customgrp);
	82	&General::get_aliases(\%aliases);
	83
	84	#check if we have an internetconnection
	85	open (CONN,"/var/ipfire/red/iface");
	86	my $con = <CONN>;
	87	close(CONN);
	88	if (-f "/var/ipfire/red/active"){
	89	$conexists='on';
	90	}
	91	open (CONN1,"/var/ipfire/red/local-ipaddress");
	92	my $redip = <CONN1>;
	93	close(CONN1);
	94	################################
	95	# DEBUG/TEST #
	96	################################
	97	my $MODE=1; # 0 - normal operation
	98	# 1 - print configline and rules to console
	99	#
	100	################################
	101	my $param=shift;
	102
	103	if($param eq 'flush'){
	104	if ($MODE eq '1'){
	105	print " Flushing chains...\n";
	106	}
	107	&flush;
	108	}else{
	109	if ($MODE eq '1'){
	110	print " Flushing chains...\n";
	111	}
	112	&flush;
	113	if ($MODE eq '1'){
	114	print " Preparing rules...\n";
	115	}
	116	&preparerules;
	117	if($MODE eq '0'){
	118	if ($fwdfwsettings{'POLICY'} eq 'MODE1'){
	119	&p2pblock;
	120	system ("/usr/sbin/firewall-policy");
	121	}elsif($fwdfwsettings{'POLICY'} eq 'MODE2'){
	122	$defaultNetworks{'GREEN_NETMASK'}=&General::iporsubtocidr($defaultNetworks{'GREEN_NETMASK'});
	123	$green="$defaultNetworks{'GREEN_ADDRESS'}/$defaultNetworks{'GREEN_NETMASK'}";
	124	if ($defaultNetworks{'BLUE_DEV'}){
	125	$defaultNetworks{'BLUE_NETMASK'}=&General::iporsubtocidr($defaultNetworks{'BLUE_NETMASK'});
	126	$blue="$defaultNetworks{'BLUE_ADDRESS'}/$defaultNetworks{'BLUE_NETMASK'}";
	127	#set default rules for BLUE
	128	system ("iptables -A $CHAIN -s $blue -d $green -j RETURN");
	129	}
	130	if ($defaultNetworks{'ORANGE_DEV'}){
	131	$defaultNetworks{'ORANGE_NETMASK'}=&General::iporsubtocidr($defaultNetworks{'ORANGE_NETMASK'});
	132	$orange="$defaultNetworks{'ORANGE_ADDRESS'}/$defaultNetworks{'ORANGE_NETMASK'}";
	133	#set default rules for DMZ
	134	system ("iptables -A $CHAIN -s $orange -d $green -j RETURN");
	135	if ($defaultNetworks{'BLUE_DEV'}){
	136	system ("iptables -A $CHAIN -s $orange -d $blue -j RETURN");
	137	}
	138	}
	139	&p2pblock;
	140	system ("iptables -A $CHAIN -m state --state NEW -j ACCEPT");
	141	system ("/usr/sbin/firewall-policy");
	142	}
	143	}
	144	}
	145	sub flush
	146	{
	147	system ("iptables -F FORWARDFW");
	148	system ("iptables -F INPUTFW");
	149	system ("iptables -F OUTGOINGFW");
	150	system ("iptables -F PORTFWACCESS");
	151	system ("iptables -t nat -F NAT_DESTINATION");
	152	system ("iptables -t nat -F NAT_SOURCE");
	153	}
	154	sub preparerules
	155	{
	156	if (! -z "${General::swroot}/forward/dmz"){
	157	&buildrules(\%configdmzfw);
	158	}
	159	if (! -z "${General::swroot}/forward/config"){
	160	&buildrules(\%configfwdfw);
	161	}
	162	if (! -z "${General::swroot}/forward/input"){
	163	&buildrules(\%configinputfw);
	164	}
	165	if (! -z "${General::swroot}/forward/outgoing"){
	166	&buildrules(\%configoutgoingfw);
	167	}
	168	if (! -z "${General::swroot}/forward/nat"){
	169	&buildrules(\%confignatfw);
	170	}
	171	}
	172	sub buildrules
	173	{
	174	my $hash=shift;
	175	my $STAG;
	176	my $natip;
	177	my $snatport;
	178	my $fireport;
	179	foreach my $key (sort {$a <=> $b} keys %$hash){
	180	next if ($$hash{$key}[6] eq 'RED' && $conexists eq 'off' );
	181	if ($$hash{$key}[28] eq 'ON'){
	182	$command='iptables -t nat -A';
	183	$natip=&get_nat_ip($$hash{$key}[29]);
	184	if($$hash{$key}[31] eq 'dnat'){
	185	$$hash{$key}[0]='DNAT';
	186	$fireport='--dport '.$$hash{$key}[30] if ($$hash{$key}[30]>0);
	187	}else{
	188	$$hash{$key}[0]='SNAT';
	189	}
	190	}
	191	$STAG='';
	192	if($$hash{$key}[2] eq 'ON'){
	193	#get source ip's
	194	if ($$hash{$key}[3] eq 'cust_grp_src'){
	195	foreach my $grp (sort {$a <=> $b} keys %customgrp){
	196	if($customgrp{$grp}[0] eq $$hash{$key}[4]){
	197	&get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"src");
	198	}
	199	}
	200	}else{
	201	&get_address($$hash{$key}[3],$$hash{$key}[4],"src");
	202	}
	203	#get target ip's
	204	if ($$hash{$key}[5] eq 'cust_grp_tgt'){
	205	foreach my $grp (sort {$a <=> $b} keys %customgrp){
	206	if($customgrp{$grp}[0] eq $$hash{$key}[6]){
	207	&get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"tgt");
	208	}
	209	}
	210	}elsif($$hash{$key}[5] eq 'ipfire'){
	211	if($$hash{$key}[6] eq 'Default IP'){
	212	open(FILE, "/var/ipfire/red/local-ipaddress") or die 'Unable to open config file.';
	213	$targethash{$key}[0]= <FILE>;
	214	close(FILE);
	215	}else{
	216	foreach my $alias (sort keys %aliases){
	217	if ($$hash{$key}[6] eq $alias){
	218	$targethash{$key}[0]=$aliases{$alias}{'IPT'};
	219	}
	220	}
	221	}
	222	}else{
	223	&get_address($$hash{$key}[5],$$hash{$key}[6],"tgt");
	224	}
	225	##get source prot and port
	226	$SRC_TGT='SRC';
	227	$SPROT = &get_prot($hash,$key);
	228	$SPORT = &get_port($hash,$key);
	229	$SRC_TGT='';
	230
	231	##get target prot and port
	232	$DPROT=&get_prot($hash,$key);
	233
	234	if ($DPROT eq ''){$DPROT=' ';}
	235	@DPROT=split(",",$DPROT);
	236
	237	#get time if defined
	238	if($$hash{$key}[18] eq 'ON'){
	239	my ($time1,$time2,$daylight);
	240	my $daylight=$$hash{$key}[28];
	241	$time1=&get_time($$hash{$key}[26],$daylight);
	242	$time2=&get_time($$hash{$key}[27],$daylight);
	243	if($$hash{$key}[19] ne ''){push (@timeframe,"Mon");}
	244	if($$hash{$key}[20] ne ''){push (@timeframe,"Tue");}
	245	if($$hash{$key}[21] ne ''){push (@timeframe,"Wed");}
	246	if($$hash{$key}[22] ne ''){push (@timeframe,"Thu");}
	247	if($$hash{$key}[23] ne ''){push (@timeframe,"Fri");}
	248	if($$hash{$key}[24] ne ''){push (@timeframe,"Sat");}
	249	if($$hash{$key}[25] ne ''){push (@timeframe,"Sun");}
	250	$TIME=join(",",@timeframe);
	251
	252	$TIMEFROM="--timestart $time1 ";
	253	$TIMETILL="--timestop $time2 ";
	254	$TIME="-m time --weekdays $TIME $TIMEFROM $TIMETILL";
	255	}
	256	if ($MODE eq '1'){
	257	print "NR:$key ";
	258	foreach my $i (0 .. $#{$$hash{$key}}){
	259	print "$i: $$hash{$key}[$i] ";
	260	}
	261	print "\n";
	262	print"##################################\n";
	263	#print rules to console
	264	foreach my $DPROT (@DPROT){
	265	$DPORT = &get_port($hash,$key,$DPROT);
	266	if ($SPROT ne ''){$PROT=$SPROT;}else{$PROT=$DPROT;}
	267	$PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
	268	foreach my $a (sort keys %sourcehash){
	269	foreach my $b (sort keys %targethash){
	270	if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' \|\| $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
	271	if($SPROT eq '' \|\| $SPROT eq $DPROT \|\| $DPROT eq ' '){
	272	if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
	273	if(substr($DPORT, 2, 4) eq 'icmp'){
	274	my @icmprule= split(",",substr($DPORT, 12,));
	275	foreach (@icmprule){
	276	if ($$hash{$key}[17] eq 'ON'){
	277	print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j LOG\n";
	278	}
	279	print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]\n";
	280	}
	281	}elsif($$hash{$key}[28] ne 'ON'){
	282	if ($$hash{$key}[17] eq 'ON'){
	283	print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
	284	}
	285	print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
	286	}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
	287	if ($$hash{$key}[17] eq 'ON'){
	288	print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
	289	}
	290	my ($ip,$sub) =split("/",$targethash{$b}[0]);
	291	print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $$hash{$key}[0] --to $ip$DPORT\n";
	292	$DPORT =~ s/\-/:/g;
	293	my $fwaccessdport="--dport ".substr($DPORT,1,) if ($DPORT);
	294	print "iptables -A PORTFWACCESS $PROT -i $con -d $ip $fwaccessdport $TIME -j ACCEPT\n";
	295	}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[32] eq 'snat'){
	296	print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0] --to $natip$fireport\n";
	297	}
	298	}
	299	}
	300	}
	301	}
	302	print"\n";
	303	}
	304	}elsif($MODE eq '0'){
	305	foreach my $DPROT (@DPROT){
	306	$DPORT = &get_port($hash,$key,$DPROT);
	307	if ($SPROT ne ''){$PROT=$SPROT;}else{$PROT=$DPROT;}
	308	$PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
	309	foreach my $a (sort keys %sourcehash){
	310	foreach my $b (sort keys %targethash){
	311	if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' \|\| $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
	312	if($SPROT eq '' \|\| $SPROT eq $DPROT \|\| $DPROT eq ' '){
	313	if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
	314	if(substr($DPORT, 2, 4) eq 'icmp'){
	315	my @icmprule= split(",",substr($DPORT, 12,));
	316	foreach (@icmprule){
	317	if ($$hash{$key}[17] eq 'ON'){
	318	system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] -- icmp-type $_ $TIME -j LOG");
	319	}
	320	system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]");
	321	}
	322	}elsif($$hash{$key}[28] ne 'ON'){
	323	if ($$hash{$key}[17] eq 'ON'){
	324	system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
	325	}
	326	system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
	327	}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
	328	if ($$hash{$key}[17] eq 'ON'){
	329	system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
	330	}
	331	my ($ip,$sub) =split("/",$targethash{$b}[0]);
	332	system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $$hash{$key}[0] --to $ip$DPORT\n";
	333	$DPORT =~ s/\-/:/g;
	334	my $fwaccessdport="--dport ".substr($DPORT,1,) if ($DPORT);
	335	system "iptables -A PORTFWACCESS $PROT -i $con -d $ip $fwaccessdport $TIME -j ACCEPT\n";
	336
	337	}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
	338	if ($$hash{$key}[17] eq 'ON'){
	339	system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT '\n";
	340	}
	341	system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0] --to $natip$fireport\n";
	342	}
	343	}
	344	}
	345	}
	346	}
	347	}
	348	}
	349	}
	350	%sourcehash=();
	351	%targethash=();
	352	undef $TIME;
	353	undef $TIMEFROM;
	354	undef $TIMETILL;
	355	undef $fireport;
	356	}
	357	}
	358	sub get_nat_ip
	359	{
	360	my $val=shift;
	361	my $result;
	362	if($val eq 'RED' \|\| $val eq 'GREEN' \|\| $val eq 'ORANGE' \|\| $val eq 'BLUE'){
	363	$result=$defaultNetworks{$val.'_ADDRESS'};
	364	}elsif($val eq 'ALL'){
	365	$result='-i '.$con;
	366	}elsif($val eq 'Default IP'){
	367	$result='-d '.$redip;
	368	}else{
	369	foreach my $al (sort keys %aliases){
	370	if($val eq $al){
	371	$result='-d '.$aliases{$al}{'IPT'};
	372	}
	373	}
	374	}
	375	return $result;
	376	}
	377	sub get_time
	378	{
	379	my $val=shift;
	380	my $val1=shift;
	381	my $time;
	382	my $minutes;
	383	my $ruletime;
	384	$minutes = &utcmin($val);
	385	$ruletime = $minutes + &time_get_utc($val);
	386	if ($ruletime < 0){$ruletime +=1440;}
	387	if ($ruletime > 1440){$ruletime -=1440;}
	388	$time=sprintf "%02d:%02d", $ruletime / 60, $ruletime % 60;
	389	return $time;
	390	}
	391	sub time_get_utc
	392	{
	393	# Calculates the UTCtime from a given time
	394	my $val=shift;
	395	my @localtime=localtime(time);
	396	my @gmtime=gmtime(time);
	397	my $diff = ($gmtime[2]60+$gmtime[1]%60)-($localtime[2]60+$localtime[1]%60);
	398	return $diff;
	399	}
	400	sub utcmin
	401	{
	402	my $ruletime=shift;
	403	my ($hrs,$min) = split(":",$ruletime);
	404	my $newtime = $hrs*60+$min;
	405	return $newtime;
	406	}
	407	sub p2pblock
	408	{
	409	my $P2PSTRING;
	410	my $DO;
	411	open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
	412	@p2ps = <FILE>;
	413	close FILE;
	414	my $CMD = "-m ipp2p";
	415	foreach my $p2pentry (sort @p2ps) {
	416	my @p2pline = split( /\;/, $p2pentry );
	417	if ( $fwdfwsettings{'POLICY'} eq 'MODE1' ) {
	418	$DO = "ACCEPT";
	419	if ("$p2pline[2]" eq "on") {
	420	$P2PSTRING = "$P2PSTRING --$p2pline[1]";
	421	}
	422	}else {
	423	$DO = "RETURN";
	424	if ("$p2pline[2]" eq "off") {
	425	$P2PSTRING = "$P2PSTRING --$p2pline[1]";
	426	}
	427	}
	428	}
	429	if ($MODE eq 1){
	430	if($P2PSTRING){
	431	print"/sbin/iptables -A FORWARDFW $CMD $P2PSTRING -j $DO\n";
	432	}
	433	}else{
	434	if($P2PSTRING){
	435	system("/sbin/iptables -A FORWARDFW $CMD $P2PSTRING -j $DO");
	436	}
	437	}
	438	}
	439	sub get_address
	440	{
	441	my $base=shift; #source of checking ($configfwdfw{$key}[x] or groupkey
	442	my $base2=shift;
	443	my $type=shift; #src or tgt
	444	my $hash;
	445	if ($type eq 'src'){
	446	$hash=\%sourcehash;
	447	}else{
	448	$hash=\%targethash;
	449	}
	450	my $key = &General::findhasharraykey($hash);
	451	if($base eq 'src_addr' \|\| $base eq 'tgt_addr' ){
	452	if (&General::validmac($base2)){
	453	$$hash{$key}[0] = "-m mac --mac-source $base2";
	454	}else{
	455	$$hash{$key}[0] = $base2;
	456	}
	457	}elsif($base eq 'std_net_src' \|\| $base eq 'std_net_tgt' \|\| $base eq 'Standard Network'){
	458	$$hash{$key}[0]=&fwlib::get_std_net_ip($base2,$con);
	459	}elsif($base eq 'cust_net_src' \|\| $base eq 'cust_net_tgt' \|\| $base eq 'Custom Network'){
	460	$$hash{$key}[0]=&fwlib::get_net_ip($base2);
	461	}elsif($base eq 'cust_host_src' \|\| $base eq 'cust_host_tgt' \|\| $base eq 'Custom Host'){
	462	$$hash{$key}[0]=&fwlib::get_host_ip($base2,$type);
	463	}elsif($base eq 'ovpn_net_src' \|\| $base eq 'ovpn_net_tgt' \|\| $base eq 'OpenVPN static network'){
	464	$$hash{$key}[0]=&fwlib::get_ovpn_net_ip($base2,1);
	465	}elsif($base eq 'ovpn_host_src' \|\|$base eq 'ovpn_host_tgt' \|\| $base eq 'OpenVPN static host'){
	466	$$hash{$key}[0]=&fwlib::get_ovpn_host_ip($base2,33);
	467	}elsif($base eq 'ovpn_n2n_src' \|\|$base eq 'ovpn_n2n_tgt' \|\| $base eq 'OpenVPN N-2-N'){
	468	$$hash{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,27);
	469	}elsif($base eq 'ipsec_net_src' \|\| $base eq 'ipsec_net_tgt' \|\| $base eq 'IpSec Network'){
	470	$$hash{$key}[0]=&fwlib::get_ipsec_net_ip($base2,11);
	471	}
	472	}
	473	sub get_prot
	474	{
	475	my $hash=shift;
	476	my $key=shift;
	477	if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
	478	if ($$hash{$key}[10] ne ''){
	479	return"$$hash{$key}[8]";
	480	}elsif($$hash{$key}[9] ne ''){
	481	return"$$hash{$key}[8]";
	482	}else{
	483	return "$$hash{$key}[8]";
	484	}
	485	}elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
	486	if ($$hash{$key}[14] eq 'TGT_PORT'){
	487	if ($$hash{$key}[15] ne ''){
	488	return "$$hash{$key}[12]";
	489	}elsif($$hash{$key}[13] ne ''){
	490	return "$$hash{$key}[12]";
	491	}else{
	492	return "$$hash{$key}[12]";
	493	}
	494	}elsif($$hash{$key}[14] eq 'cust_srv'){
	495	return &fwlib::get_srv_prot($$hash{$key}[15]);
	496
	497	}elsif($$hash{$key}[14] eq 'cust_srvgrp'){
	498	return &fwlib::get_srvgrp_prot($$hash{$key}[15]);
	499	}
	500	}
	501	}
	502	sub get_port
	503	{
	504	my $hash=shift;
	505	my $key=shift;
	506	my $prot=shift;
	507	if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
	508	if ($$hash{$key}[10] ne ''){
	509	$$hash{$key}[10] =~ s/\\|/,/g;
	510	if(index($$hash{$key}[10],",") > 0){
	511	return "-m multiport --sport $$hash{$key}[10] ";
	512	}else{
	513	if($$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') ){
	514	return "--sport $$hash{$key}[10] ";
	515	}else{
	516	return ":$$hash{$key}[10]";
	517	}
	518	}
	519	}elsif($$hash{$key}[9] ne '' && $$hash{$key}[9] ne 'All ICMP-Types'){
	520	return "--icmp-type $$hash{$key}[9] ";
	521	}elsif($$hash{$key}[9] eq 'All ICMP-Types'){
	522	return;
	523	}
	524	}elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
	525	if($$hash{$key}[14] eq 'TGT_PORT'){
	526	if ($$hash{$key}[15] ne ''){
	527	$$hash{$key}[15] =~ s/\\|/,/g;
	528	if(index($$hash{$key}[15],",") > 0){
	529	return "-m multiport --dport $$hash{$key}[15] ";
	530	}else{
	531	if($$hash{$key}[28] ne 'ON' \|\| ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ){
	532	return "--dport $$hash{$key}[15] ";
	533	}else{
	534	$$hash{$key}[15] =~ s/\:/-/g;
	535	return ":$$hash{$key}[15]";
	536	}
	537	}
	538	}elsif($$hash{$key}[13] ne '' && $$hash{$key}[13] ne 'All ICMP-Types'){
	539	return "--icmp-type $$hash{$key}[13] ";
	540	}elsif($$hash{$key}[13] ne '' && $$hash{$key}[13] eq 'All ICMP-Types'){
	541	return;
	542	}
	543	}elsif($$hash{$key}[14] eq 'cust_srv'){
	544	if ($prot ne 'ICMP'){
	545	if($$hash{$key}[31] eq 'dnat'){
	546	return ":".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
	547	}else{
	548	return "--dport ".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
	549	}
	550	}elsif($prot eq 'ICMP' && $$hash{$key}[15] ne 'All ICMP-Types'){
	551	return "--icmp-type ".&fwlib::get_srv_port($$hash{$key}[15],3,$prot);
	552	}elsif($prot eq 'ICMP' && $$hash{$key}[15] eq 'All ICMP-Types'){
	553	return;
	554	}
	555	}elsif($$hash{$key}[14] eq 'cust_srvgrp'){
	556	if ($prot ne 'ICMP'){
	557	return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
	558	}
	559	elsif($prot eq 'ICMP'){
	560	return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
	561	}
	562	}
	563	}
	564	}