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