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