config/forwardfw/rules.pl

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