Forward Firewall: added converters for old exaccess rules and old rules from outgoing...

[people/teissler/ipfire-2.x.git] / config / forwardfw / convert-outgoingfw

#!/usr/bin/perl


require '/var/ipfire/general-functions.pl';
use Socket;

my $ipgrouppath 	= "${General::swroot}/outgoing/groups/ipgroups/";
my $macgrouppath	= "${General::swroot}/outgoing/groups/macgroups/";
my $outgoingrules	= "${General::swroot}/outgoing/rules";
my $outfwsettings	= "${General::swroot}/outgoing/settings";
my $host			= "Converted ";
my $confighosts		= "${General::swroot}/fwhosts/customhosts";
my $confignets		= "${General::swroot}/fwhosts/customnetworks";
my $configgroups	= "${General::swroot}/fwhosts/customgroups";
my $ovpnsettings	= "${General::swroot}/ovpn/settings";
my $ovpnconfig		= "${General::swroot}/ovpn/ovpnconfig";
my $ccdconfig		= "${General::swroot}/ovpn/ccd.conf";
my $fwdfwconfig		= "${General::swroot}/forward/config";
my $fwdfwsettings	= "${General::swroot}/forward/settings";
my @ipgroups = qx(ls $ipgrouppath);
my @macgroups = qx(ls $macgrouppath);
my @hostarray=();
my %outsettings=();
my %hosts=();
my %nets=();
my %groups=();
my %settingsovpn=();
my %configovpn=();
my %ccdconf=();
my %fwconf=();
my %fwdsettings=();
&General::readhash($outfwsettings,\%outsettings);


&process_groups;
&process_rules;



sub process_groups
{
	if(! -d "/var/log/firewall"){ mkdir("/var/log/firewall");}
	if( -f "/var/log/firewall/ip-convert.log"){unlink ("/var/log/firewall/ip-convert.log");}
	open (LOG, ">/var/log/firewall/ip-convert.log") or die $!;
	#IP Group processing
	foreach my $group (@ipgroups){
		chomp $group;
		open (DATEI, "<$ipgrouppath/$group");
		my @zeilen = <DATEI>;
		foreach my $ip (@zeilen){
			chomp($ip);
			$ip =~ s/\s//gi;
			my $val=&check_ip($ip);
			if($val){
				push(@hostarray,$val.",ip");
			}
			else{
				print LOG "-> IP \"$ip\" from group $group not converted (invalid IP) \n";
			}
			$val='';
		}
		&new_hostgrp($group,'ip');
		@hostarray=();
	}
	$group='';
	@zeilen=();
	@hostarray=();
	#MAC Group processing
	foreach my $group (@macgroups){
		chomp $group;
		open (DATEI, "<$macgrouppath/$group");
		my @zeilen = <DATEI>;
		foreach my $mac (@zeilen){
			chomp($mac);
			$mac =~ s/\s//gi;
			#MAC checking
			if(&General::validmac($mac)){
				$val=$mac;
			}
			if($val){
				push(@hostarray,$val.",mac");
			}
			else{
				print LOG "-> Mac $mac from group $group not converted (invalid MAC)\n";
			}
			$val='';
		}
		&new_hostgrp($group,'mac');
		@hostarray=();
	}
	close (LOG);
}
sub check_ip
{
	my $adr=shift;
	my $a;
	#ip with subnet in decimal
	if($adr =~ m/^(\d\d?\d?).(\d\d?\d?).(\d\d?\d?).(\d\d?\d?)\/(\d{1,2})$/){
		$adr=int($1).".".int($2).".".int($3).".".int($4);
		my $b = &General::iporsubtodec($5);
		$a=$adr."/".$b;
	}
	if($adr =~ /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/){
		$adr=int($1).".".int($2).".".int($3).".".int($4);
		if(&General::validip($adr)){
			$a=$adr."/255.255.255.255";
		}
	}
	if(&General::validipandmask($adr)){
		$a=&General::iporsubtodec($adr);
	}
	return $a;
}
sub new_hostgrp
{
	&General::readhasharray($confighosts,\%hosts);
	&General::readhasharray($confignets,\%nets);
	&General::readhasharray($configgroups,\%groups);
	my $grp=shift;
	my $run=shift;
	my $name; #"converted"
	my $name2;
	my $name3; #custom host/custom net
	foreach my $adr (@hostarray){
		if($run eq 'ip'){
			my ($ip,$type) 			= split(",",$adr);
			my ($ippart,$subnet) 	= split("/",$ip);
			my ($byte1,$byte2,$byte3,$byte4) = split(/\./,$subnet);
			if($byte4 eq '255'){ 
				if(!&check_host($ip)){
					my $key		= &General::findhasharraykey(\%hosts);
					$name="host ";
					$name2=$name.$ippart;
					$name3="Custom Host";
					$hosts{$key}[0]	= $name2;
					$hosts{$key}[1]	= $type;
					$hosts{$key}[2]	= $ip;
					$hosts{$key}[3]	= 1;
				}else{
					print LOG "Host (IP) $ip already exists\n";
				}
			}elsif($byte4 < '255'){
				if(!&check_net($ippart,$subnet)){
					my $netkey	=  &General::findhasharraykey(\%nets);
					$name="net ";
					$name2=$name.$ippart;
					$name3="Custom Network";
					$nets{$netkey}[0] = $name2;
					$nets{$netkey}[1] = $ippart;
					$nets{$netkey}[2] = $subnet;
					$nets{$netkey}[3] = 1;
				}else{
					print LOG "Network $ippart already exists\n";
				}
			}
			if($name2){
				my $grpkey 	= &General::findhasharraykey(\%groups);
				$groups{$grpkey}[0]	= $grp;
				$groups{$grpkey}[1]	= '';
				$groups{$grpkey}[2]	= $name2;
				$groups{$grpkey}[3]	= $name3;
				$groups{$grpkey}[4]	= 0;
			}
		}elsif($run eq 'mac'){
			#MACRUN
			my ($mac,$type) 			= split(",",$adr);
			if(!&check_host($mac)){
				my $key		= &General::findhasharraykey(\%hosts);
				$name="host ";
				$name2=$name.$mac;
				$name3="Custom Host";
				$hosts{$key}[0]	= $name2;
				$hosts{$key}[1]	= $type;
				$hosts{$key}[2]	= $mac;
				$hosts{$key}[3]	= 1;
			}else{
				print LOG "Host (MAC) $mac already exists\n";
			}
			if($name2){
				my $grpkey 	= &General::findhasharraykey(\%groups);
				$groups{$grpkey}[0]	= $grp;
				$groups{$grpkey}[1]	= '';
				$groups{$grpkey}[2]	= $name2;
				$groups{$grpkey}[3]	= $name3;
				$groups{$grpkey}[4]	= 0;
			}
		}
	}
	&General::writehasharray($confighosts,\%hosts);
	&General::writehasharray($configgroups,\%groups);
	&General::writehasharray($confignets,\%nets);
}
sub check_host
{
	my $ip=shift;
	foreach my $key (sort keys %hosts)
	{
		if($hosts{$key}[2] eq $ip)
		{
			return 1;
		}
	}
	return 0;
}
sub check_net
{
	my $ip=shift;
	my $sub=shift;
	foreach my $key (sort keys %nets)
	{
		if($nets{$key}[1] eq $ip && $nets{$key}[2] eq $sub)
		{
			return 1;
		}
	}
	return 0;
}
sub check_grp
{
	my $grp=shift;
	my $value=shift;
	foreach my $key (sort keys %groups)
	{
		if($groups{$key}[0] eq $grp && $groups{$key}[2] eq $value)
		{
			return 1;
		}
	}
	return 0;
}
sub process_rules
{
	print "Outgoing ist im Mode $outsettings{'POLICY'}\n";
	&General::readhash($fwdfwsettings,\%fwdsettings);
	if($fwdsettings{'POLICY'} ne $outsettings{'POLICY'}){
		$fwdsettings{'POLICY'}=$outsettings{'POLICY'};
		&General::writehash($fwdfwsettings,\%fwdsettings);
	}
	#open LOG
	if( -f "/var/log/firewall/rule-convert.log"){unlink ("/var/log/firewall/rule-convert.log");}
	open (LOG, ">/var/log/firewall/rule-convert.log") or die $!;

	my ($type,$action,$active,$grp1,$source,$grp2,$useport,$port,$prot,$grp3,$target,$remark,$log,$time,$time_mon,$time_tue,$time_wed,$time_thu,$time_fri,$time_sat,$time_sun,$time_from,$time_to);
	if ($outsettings{'POLICY'} eq 'MODE1'){
		$type='ALLOW';
		$action='ACCEPT';
	}elsif($outsettings{'POLICY'} eq 'MODE2'){
		$type='DENY';
		$action='DROP';
	}else{
		return;
	}
	open (DATEI, "<$outgoingrules");
	my @lines = <DATEI>;
	foreach my $rule (@lines)
	{
		chomp($rule);
		print LOG "processing: $rule\n";
		print "$rule\n";
		my @configline = split( /\;/, $rule );
		my @prot=();
		if($configline[0] eq $type){
			#some variables we can use from old config
			if($configline[1] eq 'on'){ $active='ON';}else{$active='';}
			if($configline[3] eq 'all'){ 
				push(@prot,"tcp");
				push(@prot,"udp");
				$useport='ON';
				$grp3='TGT_PORT';
				
			}else{
				push(@prot,$configline[3]);
				$useport='ON';
				$grp3='TGT_PORT';
			}
			if($configline[4] ne ''){ $remark=$configline[4];}else{$remark='';}
			if($configline[9] eq 'aktiv'){ $log='ON';}else{$log='';}
			
			if($configline[10] eq 'on' && $configline[11] eq 'on' && $configline[12] eq 'on' && $configline[13] eq 'on' && $configline[14] eq 'on' && $configline[15] eq 'on' && $configline[16] eq 'on'){
				if($configline[17] eq '00:00' && $configline[18] eq '00:00'){
					$time='';
				}else{
					$time='ON';					
				}
			}else{
				$time='ON';	
			} 
			$time_mon=$configline[10];
			$time_tue=$configline[11];
			$time_wed=$configline[12];
			$time_thu=$configline[13];
			$time_fri=$configline[14];
			$time_sat=$configline[15];
			$time_sun=$configline[16];
			$time_from=$configline[17];
			$time_to=$configline[18];
			############################################################
			#sourcepart			
			if ($configline[2] eq 'green') {
				$grp1='std_net_src';
				$source='GREEN';
			}elsif ($configline[2] eq 'orange') {
				$grp1='std_net_src';
				$source='ORANGE';
			}elsif ($configline[2] eq 'red') {
				print LOG "-> Rule not converted, is an outgoing rule.Please put it manually in /etc/sysconfig/firewall.local \n";
				next;
			}elsif ($configline[2] eq 'blue') {
				$grp1='std_net_src';
				$source='BLUE';
			}elsif ($configline[2] eq 'ipsec') {
				print LOG "-> Rule not converted, ipsec+ interface is obsolet since IPFire 2.7 \n";
				next;
			}elsif ($configline[2] eq 'ovpn') {
				&build_ovpn_grp;				
			}elsif ($configline[2] eq 'ip') {
				my $z=&check_ip($configline[5]);
				if($z){
					$grp1='src_addr';
					$source=$z;
				}else{
					print LOG "-> Rule not converted, missing/invalid source ip \"$configline[5]\"\n";
					next;
				}
			}elsif ($configline[2] eq 'mac') {
				if(&General::validmac($configline[6])){
					$grp1='src_addr';
					$source=$configline[6];
				}else{
					print LOG"-> Rule not converted, invalid MAC \"$configline[6]\" \n";
					next;
				}
			}elsif ($configline[2] eq 'all') {
				$grp1='std_net_src';
				$source='ALL';
			}else{
				#&General::readhasharray($configgroups,\%groups);
				foreach my $key (sort keys %groups){
					if($groups{$key}[0] eq $configline[2]){
						$grp1='cust_grp_src';
						$source=$configline[2];
					}
				}
				if ($grp1 eq '' || $source eq ''){
					print LOG "-> Rule not converted, no valid source recognised\n";
				}
			}
			############################################################
			#destinationpart
			if($configline[7] ne ''){
				my $address=&check_ip($configline[7]);
				 if($address){
					 $grp2='tgt_addr';
					 $target=$address;
				 }elsif(!$address){
					my $getwebsiteip=&get_ip_from_domain($configline[7]);
					if ($getwebsiteip){
						$grp2='tgt_addr';
						$target=$getwebsiteip;	
					}else{
						print LOG "-> Rule not converted, invalid domain \"$configline[7]\"\n";
						next;
					}
				 }
			}else{
				$grp2='std_net_tgt';
				$target='ALL';
			}
			if($configline[8] ne ''){
				if (!($configline[8] =~ /^(\d+)\:(\d+)$/)) {
					if(&General::validport($configline[8])){
						$useport='ON';	
						$port=$configline[8];
						$grp3='TGT_PORT';
					}else{
						print LOG "-> Rule not converted, invalid destination Port \"$configline[8]\"\n";
						next;
					}
				 }else{
					 my ($a1,$a2) = split(/\:/,$configline[8]);
					 if (&General::validport($a1) && &General::validport($a2) && $a1 < $a2){
						$useport='ON';	
						$port=$configline[8];
						$grp3='TGT_PORT';
					 }else{
						print LOG "-> Rule not converted, invalid destination Port \"$configline[8]\"\n"; 
						next;
					 } 
				 }
			}
		}else{
			print LOG "-> Rule not converted because not for Firewall mode $outsettings{'POLICY'} (we are only converting for actual mode)\n";
		}
		&General::readhasharray($fwdfwconfig,\%fwconfig);
		my $check;
		foreach my $protocol (@prot){
			$protocol=uc($protocol);
			print"0:$action 1:FORWARDFW 2:$active 3:$grp1 4:$source 5:$grp2 6:$target 7:src_srv(leer) 8:srcprot(leer) 9:icmp(leer) 10:srcport(leer) 11:$useport 12:$protocol 13:icmp(leer) 14:$grp3 15:$port 16:$remark 17:$log 18:$time 19:$time_mon 20:$time_tue 21:$time_wed 22:$time_thu 23:$time_fri 24:$time_sat 25:$time_sun 26:$time_from 27:$time_to\n\n";
			print LOG "-> Converted: $action,FORWARDFW,$active,$grp1,$source,$grp2,$target,,,,,$useport,$protocol,,$grp3,$port,$remark,$log,$time,$time_mon,$time_tue,$time_wed,$time_thu,$time_fri,$time_sat,$time_sun,$time_from,$time_to\n";
			#Put rules into system....
			###########################
			
			#check for double rules
			foreach my $key (sort keys %fwconfig){
				if("$action,FORWARDFW,$active,$grp1,$source,$grp2,$target,,,,,$useport,$protocol,,$grp3,$port,$remark,$log,$time,$time_mon,$time_tue,$time_wed,$time_thu,$time_fri,$time_sat,$time_sun,$time_from,$time_to" 
					eq "$fwconfig{$key}[0],$fwconfig{$key}[1],$fwconfig{$key}[2],$fwconfig{$key}[3],$fwconfig{$key}[4],$fwconfig{$key}[5],$fwconfig{$key}[6],,,,,$fwconfig{$key}[11],$fwconfig{$key}[12],,$fwconfig{$key}[14],$fwconfig{$key}[15],$fwconfig{$key}[16],$fwconfig{$key}[17],$fwconfig{$key}[18],$fwconfig{$key}[19],$fwconfig{$key}[20],$fwconfig{$key}[21],$fwconfig{$key}[22],$fwconfig{$key}[23],$fwconfig{$key}[24],$fwconfig{$key}[25],$fwconfig{$key}[26],$fwconfig{$key}[27]"){
						$check='on';
						next;
				}
			}
			if($check ne 'on'){
				#increase groupcounter
				my $check1;
				if($grp1 eq 'cust_grp_src'){
					foreach my $key (sort keys %groups){
						if($groups{$key}[0] eq $source){
							$groups{$key}[4]++;
							$check1='on'; 
						}
					}
					if($check1 eq 'on'){
						print" schreibe in gruppe\n";
						&General::writehasharray($configgroups,\%groups);
					}
				}
				print"SCHREIBE REGEL!\n";
				my $key = &General::findhasharraykey(\%fwconfig);
				$fwconfig{$key}[0]	= $action;
				$fwconfig{$key}[1] 	= "FORWARDFW";
				$fwconfig{$key}[2] 	= $active;
				$fwconfig{$key}[3] 	= $grp1;
				$fwconfig{$key}[4] 	= $source;
				$fwconfig{$key}[5] 	= $grp2;
				$fwconfig{$key}[6] 	= $target;
				$fwconfig{$key}[11] = $useport;
				$fwconfig{$key}[12] = $protocol;
				$fwconfig{$key}[14] = $grp3;
				$fwconfig{$key}[15] = $port;
				$fwconfig{$key}[16] = $remark;
				$fwconfig{$key}[17] = $log;
				$fwconfig{$key}[18] = $time;
				$fwconfig{$key}[19] = $time_mon;
				$fwconfig{$key}[20] = $time_tue;
				$fwconfig{$key}[21] = $time_wed;
				$fwconfig{$key}[22] = $time_thu;
				$fwconfig{$key}[23] = $time_fri;
				$fwconfig{$key}[24] = $time_sat;
				$fwconfig{$key}[25] = $time_sun;
				$fwconfig{$key}[26] = $time_from;
				$fwconfig{$key}[27] = $time_to;
			}
		}
		&General::writehasharray($fwdfwconfig,\%fwconfig);
		system("/usr/local/bin/forwardfwctrl");
		@prot=();
	}
	close(LOG);
	@lines=();
}
sub get_ip_from_domain
{
	$web=shift;
	my $resolvedip;
	my $checked;
	my ($name,$aliases,$addrtype,$length,@addrs) = gethostbyname($web);
	if(@addrs){
		$resolvedip=inet_ntoa($addrs[0]);
		return $resolvedip;
	}
	return;
}
sub build_ovpn_grp
{
	&General::readhasharray($confighosts,\%hosts);
	&General::readhasharray($confignets,\%nets);
	&General::readhasharray($configgroups,\%groups);
	&General::readhasharray($ovpnconfig,\%configovpn);
	&General::readhasharray($ccdconfig,\%ccdconf);
	&General::readhash($ovpnsettings,\%settingsovpn);
	#get ovpn nets
	my @ovpnnets=();
	if($settingsovpn{'DOVPN_SUBNET'}){
		my ($net,$subnet)=split("/",$settingsovpn{'DOVPN_SUBNET'});
		push (@ovpnnets,"$net,$subnet,dynamic");
	}
	foreach my $key (sort keys %ccdconf){
		my ($net,$subnet)=split("/",$ccdconf{$key}[1]);
		$subnet=&General::iporsubtodec($subnet);
		push (@ovpnnets,"$net,$subnet,$ccdconf{$key}[0]");
	}
	foreach my $key (sort keys %configovpn){
		if ($configovpn{$key}[3] eq 'net'){
			my ($net,$subnet)=split("/",$configovpn{$key}[27]);
			push (@ovpnnets,"$net,$subnet,$configovpn{$key}[2]");
		}
	}
	#add ovpn nets to customnetworks/groups
	foreach my $line (@ovpnnets){
		my ($net,$subnet,$name) = split(",",$line);
		if (!&check_net($net,$subnet)){
			my $netkey	=  &General::findhasharraykey(\%nets);
			$name2=$name."(ovpn)".$net;
			$name3="Custom Network";
			$nets{$netkey}[0] = $name2;
			$nets{$netkey}[1] = $net;
			$nets{$netkey}[2] = $subnet;
			$nets{$netkey}[3] = 1;
		}else{
			print LOG "-> Custom Network with same IP already exist \"$net/$subnet\" (you can ignore this, if this run was manual from shell)\n"; 
		}
		if($name2){
			my $grpkey 	= &General::findhasharraykey(\%groups);
			$groups{$grpkey}[0]	= "ovpn";
			$groups{$grpkey}[1]	= '';
			$groups{$grpkey}[2]	= $name2;
			$groups{$grpkey}[3]	= "Custom Network";
			$groups{$grpkey}[4]	= 0;
		}
		$name2='';
	}
	@ovpnnets=();
	&General::writehasharray($confighosts,\%hosts);
	&General::writehasharray($configgroups,\%groups);
	&General::writehasharray($confignets,\%nets);
}