config/firewall/rules.pl

   1 #!/usr/bin/perl
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2013 Alexander Marx <amarx@ipfire.org>                        #
   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 use strict;
  23 use Time::Local;
  24 no warnings 'uninitialized';
  25
  26 # enable only the following on debugging purpose
  27 #use warnings;
  28 #use CGI::Carp 'fatalsToBrowser';
  29
  30 my %fwdfwsettings=();
  31 my %defaultNetworks=();
  32 my %configfwdfw=();
  33 my %color=();
  34 my %icmptypes=();
  35 my %ovpnSettings=();
  36 my %customgrp=();
  37 our %sourcehash=();
  38 our %targethash=();
  39 my @timeframe=();
  40 my %configinputfw=();
  41 my %configoutgoingfw=();
  42 my %confignatfw=();
  43 my %aliases=();
  44 my @DPROT=();
  45 my @p2ps=();
  46 require '/var/ipfire/general-functions.pl';
  47 require "${General::swroot}/lang.pl";
  48 require "/usr/lib/firewall/firewall-lib.pl";
  49
  50 my $configfwdfw         = "${General::swroot}/firewall/config";
  51 my $configinput     = "${General::swroot}/firewall/input";
  52 my $configoutgoing  = "${General::swroot}/firewall/outgoing";
  53 my $p2pfile                     = "${General::swroot}/firewall/p2protocols";
  54 my $configgrp           = "${General::swroot}/fwhosts/customgroups";
  55 my $netsettings         = "${General::swroot}/ethernet/settings";
  56 my $errormessage        = '';
  57 my $orange                      = '';
  58 my $green                       = '';
  59 my $blue                        = '';
  60 my ($TYPE,$PROT,$SPROT,$DPROT,$SPORT,$DPORT,$TIME,$TIMEFROM,$TIMETILL,$SRC_TGT);
  61 my $CHAIN                       = "FORWARDFW";
  62 my $conexists           = 'off';
  63 my $command                     = 'iptables --wait -A';
  64 my $dnat                        ='';
  65 my $snat                        ='';
  66
  67 &General::readhash("${General::swroot}/firewall/settings", \%fwdfwsettings);
  68 &General::readhash("$netsettings", \%defaultNetworks);
  69 &General::readhasharray($configfwdfw, \%configfwdfw);
  70 &General::readhasharray($configinput, \%configinputfw);
  71 &General::readhasharray($configoutgoing, \%configoutgoingfw);
  72 &General::readhasharray($configgrp, \%customgrp);
  73 &General::get_aliases(\%aliases);
  74
  75 #check if we have an internetconnection
  76 open (CONN,"/var/ipfire/red/iface");
  77 my $con = <CONN>;
  78 close(CONN);
  79 if (-f "/var/ipfire/red/active"){
  80         $conexists='on';
  81 }
  82 open (CONN1,"/var/ipfire/red/local-ipaddress");
  83 my $redip = <CONN1>;
  84 close(CONN1);
  85 #################
  86 #    DEBUG/TEST #
  87 #################
  88 my $MODE=0;     # 0 - normal operation
  89                 # 1 - print configline and rules to console
  90                 #
  91 #################
  92 my $param=shift;
  93
  94 if($param eq 'flush'){
  95         if ($MODE eq '1'){
  96                 print " Flushing chains...\n";
  97         }
  98         &flush;
  99 }else{
 100         if ($MODE eq '1'){
 101                 print " Flushing chains...\n";
 102         }
 103         &flush;
 104         if ($MODE eq '1'){
 105                 print " Preparing rules...\n";
 106         }
 107         &preparerules;
 108         if($MODE eq '0'){
 109                 if ($fwdfwsettings{'POLICY'} eq 'MODE1'){
 110                         &p2pblock;
 111                         system ("/usr/sbin/firewall-policy");
 112                 }elsif($fwdfwsettings{'POLICY'} eq 'MODE2'){
 113                         &p2pblock;
 114                         system ("/usr/sbin/firewall-policy");
 115                         system ("/etc/sysconfig/firewall.local reload");
 116                 }
 117         }
 118 }
 119 sub flush
 120 {
 121         system ("iptables --wait -F FORWARDFW");
 122         system ("iptables --wait -F INPUTFW");
 123         system ("iptables --wait -F OUTGOINGFW");
 124         system ("iptables --wait -t nat -F NAT_DESTINATION");
 125         system ("iptables --wait -t nat -F NAT_SOURCE");
 126 }
 127 sub preparerules
 128 {
 129         if (! -z  "${General::swroot}/firewall/config"){
 130                 &buildrules(\%configfwdfw);
 131         }
 132         if (! -z  "${General::swroot}/firewall/input"){
 133                 &buildrules(\%configinputfw);
 134         }
 135         if (! -z  "${General::swroot}/firewall/outgoing"){
 136                 &buildrules(\%configoutgoingfw);
 137         }
 138 }
 139 sub buildrules
 140 {
 141         my $hash=shift;
 142         my $STAG;
 143         my $natip;
 144         my $snatport;
 145         my $fireport;
 146         my $nat;
 147         my $fwaccessdport;
 148         my $natchain;
 149         my $icmptype;
 150         foreach my $key (sort {$a <=> $b} keys %$hash){
 151                 next if (($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1') && $conexists eq 'off' );
 152                 $command="iptables --wait -A";
 153                 if ($$hash{$key}[28] eq 'ON'){
 154                         $command='iptables --wait -t nat -A';
 155                         $natip=&get_nat_ip($$hash{$key}[29],$$hash{$key}[31]);
 156                         if($$hash{$key}[31] eq 'dnat'){
 157                                 $nat='DNAT';
 158                                 if ($$hash{$key}[30] =~ /\|/){
 159                                         $$hash{$key}[30]=~ tr/|/,/;
 160                                         $fireport='-m multiport --dport '.$$hash{$key}[30];
 161                                 }else{
 162                                         $fireport='--dport '.$$hash{$key}[30] if ($$hash{$key}[30]>0);
 163                                 }
 164                         }else{
 165                                 $nat='SNAT';
 166                         }
 167                 }
 168                 $STAG='';
 169                 if($$hash{$key}[2] eq 'ON'){
 170                         #get source ip's
 171                         if ($$hash{$key}[3] eq 'cust_grp_src'){
 172                                 foreach my $grp (sort {$a <=> $b} keys %customgrp){
 173                                                 if($customgrp{$grp}[0] eq $$hash{$key}[4]){
 174                                                 &get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"src");
 175                                         }
 176                                 }
 177                         }else{
 178                                 &get_address($$hash{$key}[3],$$hash{$key}[4],"src");
 179                         }
 180                         #get target ip's
 181                         if ($$hash{$key}[5] eq 'cust_grp_tgt'){
 182                                 foreach my $grp (sort {$a <=> $b} keys %customgrp){
 183                                         if($customgrp{$grp}[0] eq $$hash{$key}[6]){
 184                                                 &get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"tgt");
 185                                         }
 186                                 }
 187                         }elsif($$hash{$key}[5] eq 'ipfire' ){
 188                                 if($$hash{$key}[6] eq 'GREEN'){
 189                                         $targethash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
 190                                 }
 191                                 if($$hash{$key}[6] eq 'BLUE'){
 192                                         $targethash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
 193                                 }
 194                                 if($$hash{$key}[6] eq 'ORANGE'){
 195                                         $targethash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
 196                                 }
 197                                 if($$hash{$key}[6] eq 'ALL'){
 198                                         $targethash{$key}[0]='0.0.0.0/0';
 199                                 }
 200                                 if($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1'){
 201                                         open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
 202                                         $targethash{$key}[0]= <FILE>;
 203                                         close(FILE);
 204                                 }else{
 205                                         foreach my $alias (sort keys %aliases){
 206                                                 if ($$hash{$key}[6] eq $alias){
 207                                                         $targethash{$key}[0]=$aliases{$alias}{'IPT'};
 208                                                 }
 209                                         }
 210                                 }
 211                         }else{
 212                                 &get_address($$hash{$key}[5],$$hash{$key}[6],"tgt");
 213                         }
 214                         ##get source prot and port
 215                         $SRC_TGT='SRC';
 216                         $SPORT = &get_port($hash,$key);
 217                         $SRC_TGT='';
 218
 219                         ##get target prot and port
 220                         $DPROT=&get_prot($hash,$key);
 221
 222                         if ($DPROT eq ''){$DPROT=' ';}
 223                         @DPROT=split(",",$DPROT);
 224
 225                         #get time if defined
 226                         if($$hash{$key}[18] eq 'ON'){
 227                                 my ($time1,$time2,$daylight);
 228                                 my $daylight=$$hash{$key}[28];
 229                                 $time1=&get_time($$hash{$key}[26],$daylight);
 230                                 $time2=&get_time($$hash{$key}[27],$daylight);
 231                                 if($$hash{$key}[19] ne ''){push (@timeframe,"Mon");}
 232                                 if($$hash{$key}[20] ne ''){push (@timeframe,"Tue");}
 233                                 if($$hash{$key}[21] ne ''){push (@timeframe,"Wed");}
 234                                 if($$hash{$key}[22] ne ''){push (@timeframe,"Thu");}
 235                                 if($$hash{$key}[23] ne ''){push (@timeframe,"Fri");}
 236                                 if($$hash{$key}[24] ne ''){push (@timeframe,"Sat");}
 237                                 if($$hash{$key}[25] ne ''){push (@timeframe,"Sun");}
 238                                 $TIME=join(",",@timeframe);
 239
 240                                 $TIMEFROM="--timestart $time1 ";
 241                                 $TIMETILL="--timestop $time2 ";
 242                                 $TIME="-m time --weekdays $TIME $TIMEFROM $TIMETILL";
 243                         }
 244                         if ($MODE eq '1'){
 245                                 print "NR:$key ";
 246                                 foreach my $i (0 .. $#{$$hash{$key}}){
 247                                         print "$i: $$hash{$key}[$i]  ";
 248                                 }
 249                                 print "\n";
 250                                 print"##################################\n";
 251                                 #print rules to console
 252                                 foreach my $DPROT (@DPROT){
 253                                         $DPORT = &get_port($hash,$key,$DPROT);
 254                                         if ($DPROT ne 'TCP' && $DPROT ne 'UDP' && $DPROT ne 'ICMP' ){
 255                                                 $DPORT='';
 256                                         }
 257                                         $PROT=$DPROT;
 258                                         $PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
 259                                         foreach my $a (sort keys %sourcehash){
 260                                                 foreach my $b (sort keys %targethash){
 261                                                         if(! $sourcehash{$a}[0] || ! $targethash{$b}[0] || ($natip eq '-d ' && $$hash{$key}[28] eq 'ON') || (!$natip && $$hash{$key}[28] eq 'ON')){
 262                                                                 #Skip rules when no RED IP is set (DHCP,DSL)
 263                                                                 next;
 264                                                         }
 265                                                         next if ($targethash{$b}[0] eq 'none');
 266                                                         $STAG='';
 267                                                         if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
 268                                                                 if($DPROT ne ''){
 269                                                                         if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
 270                                                                         #Process ICMP RULE
 271                                                                         if(substr($DPORT, 2, 4) eq 'icmp'){
 272                                                                                 my @icmprule= split(",",substr($DPORT, 12,));
 273                                                                                 foreach (@icmprule){
 274                                                                                         $icmptype="--icmp-type ";
 275                                                                                         if ($_ eq "BLANK") {
 276                                                                                                         $icmptype="";
 277                                                                                                         $_="";
 278                                                                                         }
 279                                                                                         if ($$hash{$key}[17] eq 'ON'){
 280                                                                                                 print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG\n";
 281                                                                                         }
 282                                                                                                 print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]\n";
 283                                                                                 }
 284                                                                         #PROCESS DNAT RULE (Portforward)
 285                                                                         }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
 286                                                                                 $natchain='NAT_DESTINATION';
 287                                                                                 if ($$hash{$key}[17] eq 'ON'){
 288                                                                                         print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
 289                                                                                 }
 290                                                                                 my ($ip,$sub) =split("/",$targethash{$b}[0]);
 291                                                                                 #Process NAT with servicegroup used
 292                                                                                 if ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[14] eq 'cust_srvgrp'){
 293                                                                                         print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to-destination $ip $DPORT\n";
 294                                                                                         $fwaccessdport=$DPORT;
 295                                                                                 }else{
 296                                                                                         print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to-destination $ip$DPORT\n";
 297                                                                                         $DPORT =~ s/\-/:/g;
 298                                                                                         if ($DPORT){
 299                                                                                                 $fwaccessdport="--dport ".substr($DPORT,1,);
 300                                                                                         }elsif(! $DPORT && $$hash{$key}[30] ne ''){
 301                                                                                                 if ($$hash{$key}[30]=~m/|/i){
 302                                                                                                         $$hash{$key}[30] =~ s/\|/,/g;
 303                                                                                                         $fwaccessdport="-m multiport --dport $$hash{$key}[30]";
 304                                                                                                 }else{
 305                                                                                                         $fwaccessdport="--dport $$hash{$key}[30]";
 306                                                                                                 }
 307                                                                                         }
 308                                                                                 }
 309                                                                                 print "iptables --wait -A FORWARDFW $PROT $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
 310                                                                                 next;
 311                                                                         #PROCESS SNAT RULE
 312                                                                         }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
 313                                                                                 $natchain='NAT_SOURCE';
 314                                                                                 if ($$hash{$key}[17] eq 'ON' ){
 315                                                                                         print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT' \n";
 316                                                                                 }
 317                                                                                 print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to-source $natip\n";
 318                                                                         }
 319                                                                         #PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
 320                                                                         if ($PROT ne '-p ICMP'){
 321                                                                                 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
 322                                                                                         print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
 323                                                                                 }
 324                                                                                 print "iptables --wait -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
 325                                                                         }
 326                                                                         #PROCESS Prot ICMP and type = All ICMP-Types
 327                                                                         if ($PROT eq '-p ICMP' && $$hash{$key}[9] eq 'All ICMP-Types'){
 328                                                                                 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
 329                                                                                         print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
 330                                                                                 }
 331                                                                                 print "iptables --wait -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
 332                                                                         }
 333                                                                 }
 334                                                         }
 335                                                 }
 336                                         }
 337                                         print"\n";
 338                                 }
 339                         }elsif($MODE eq '0'){
 340                                 foreach my $DPROT (@DPROT){
 341                                         $DPORT = &get_port($hash,$key,$DPROT);
 342                                         $PROT=$DPROT;
 343                                         $PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
 344                                         if ($DPROT ne 'TCP' && $DPROT ne'UDP' && $DPROT ne 'ICMP' ){
 345                                                 $DPORT='';
 346                                         }
 347                                         foreach my $a (sort keys %sourcehash){
 348                                                 foreach my $b (sort keys %targethash){
 349                                                         if(! $sourcehash{$a}[0] || ! $targethash{$b}[0] || $natip eq '-d ' || !$natip){
 350                                                                 #Skip rules when no RED IP is set (DHCP,DSL)
 351                                                                 next;
 352                                                         }
 353                                                         next if ($targethash{$b}[0] eq 'none');
 354                                                         $STAG='';
 355                                                         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'){
 356                                                                 if($DPROT ne ''){
 357                                                                         if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
 358                                                                         #Process ICMP RULE
 359                                                                         if(substr($DPORT, 2, 4) eq 'icmp'){
 360                                                                                 my @icmprule= split(",",substr($DPORT, 12,));
 361                                                                                 foreach (@icmprule){
 362                                                                                         $icmptype="--icmp-type ";
 363                                                                                         if ($_ eq "BLANK") {
 364                                                                                                         $icmptype="";
 365                                                                                                         $_="";
 366                                                                                         }
 367                                                                                         if ($$hash{$key}[17] eq 'ON'){
 368                                                                                                 system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG");
 369                                                                                         }
 370                                                                                                 system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]");
 371                                                                                 }
 372                                                                         #PROCESS DNAT RULE (Portforward)
 373                                                                         }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
 374                                                                                 $natchain='NAT_DESTINATION';
 375                                                                                 if ($$hash{$key}[17] eq 'ON'){
 376                                                                                         system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
 377                                                                                 }
 378                                                                                 my ($ip,$sub) =split("/",$targethash{$b}[0]);
 379                                                                                 #Process NAT with servicegroup used
 380                                                                                 if ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[14] eq 'cust_srvgrp'){
 381                                                                                         system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to-destination $ip $DPORT\n";
 382                                                                                         $fwaccessdport=$DPORT;
 383                                                                                 }else{
 384                                                                                         system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to-destination $ip$DPORT\n";
 385                                                                                         $DPORT =~ s/\-/:/g;
 386                                                                                         if ($DPORT){
 387                                                                                                 $fwaccessdport="--dport ".substr($DPORT,1,);
 388                                                                                         }elsif(! $DPORT && $$hash{$key}[30] ne ''){
 389                                                                                                 if ($$hash{$key}[30]=~m/|/i){
 390                                                                                                         $$hash{$key}[30] =~ s/\|/,/g;
 391                                                                                                         $fwaccessdport="-m multiport --dport $$hash{$key}[30]";
 392                                                                                                 }else{
 393                                                                                                         $fwaccessdport="--dport $$hash{$key}[30]";
 394                                                                                                 }
 395                                                                                         }
 396                                                                                 }
 397                                                                                 system "iptables --wait -A FORWARDFW $PROT $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
 398                                                                                 next;
 399                                                                         #PROCESS SNAT RULE
 400                                                                         }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
 401                                                                                 $natchain='NAT_SOURCE';
 402                                                                                 if ($$hash{$key}[17] eq 'ON' ){
 403                                                                                         system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT' \n";
 404                                                                                 }
 405                                                                                 system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to-source $natip\n";
 406                                                                         }
 407                                                                         #PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
 408                                                                         if ($PROT ne '-p ICMP'){
 409                                                                                 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
 410                                                                                         system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
 411                                                                                 }
 412                                                                                 system "iptables --wait -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
 413                                                                         }
 414                                                                         #PROCESS Prot ICMP and type = All ICMP-Types
 415                                                                         if ($PROT eq '-p ICMP' && $$hash{$key}[9] eq 'All ICMP-Types'){
 416                                                                                 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
 417                                                                                         system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
 418                                                                                 }
 419                                                                                 system "iptables --wait -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
 420                                                                         }
 421                                                                 }
 422                                                         }
 423                                                 }
 424                                         }
 425                                 }
 426                         }
 427                 }
 428                 %sourcehash=();
 429                 %targethash=();
 430                 undef $TIME;
 431                 undef $TIMEFROM;
 432                 undef $TIMETILL;
 433                 undef $fireport;
 434         }
 435 }
 436 sub get_nat_ip
 437 {
 438         my $val=shift;
 439         my $type=shift;
 440         my $result;
 441         if($val eq 'RED' || $val eq 'GREEN' || $val eq 'ORANGE' || $val eq 'BLUE'){
 442                 $result=$defaultNetworks{$val.'_ADDRESS'};
 443         }elsif($val eq 'ALL'){
 444                 $result='-i '.$con;
 445         }elsif($val eq 'Default IP' && $type eq 'dnat'){
 446                 $result='-d '.$redip;
 447         }elsif($val eq 'Default IP' && $type eq 'snat'){
 448                 $result=$redip;
 449         }else{
 450                 foreach my $al (sort keys %aliases){
 451                         if($val eq $al && $type eq 'dnat'){
 452                                 $result='-d '.$aliases{$al}{'IPT'};
 453                         }elsif($val eq $al && $type eq 'snat'){
 454                                 $result=$aliases{$al}{'IPT'};
 455                         }
 456                 }
 457         }
 458         return $result;
 459 }
 460 sub get_time
 461 {
 462         my $val=shift;
 463         my $val1=shift;
 464         my $time;
 465         my $minutes;
 466         my $ruletime;
 467         $minutes = &utcmin($val);
 468         $ruletime = $minutes + &time_get_utc($val);
 469         if ($ruletime < 0){$ruletime +=1440;}
 470         if ($ruletime > 1440){$ruletime -=1440;}
 471         $time=sprintf "%02d:%02d", $ruletime / 60, $ruletime % 60;
 472         return $time;
 473 }
 474 sub time_get_utc
 475 {
 476         # Calculates the UTCtime from a given time
 477         my $val=shift;
 478         my @localtime=localtime(time);
 479         my @gmtime=gmtime(time);
 480         my $diff = ($gmtime[2]*60+$gmtime[1]%60)-($localtime[2]*60+$localtime[1]%60);
 481         return $diff;
 482 }
 483 sub utcmin
 484 {
 485         my $ruletime=shift;
 486         my ($hrs,$min) = split(":",$ruletime);
 487         my $newtime = $hrs*60+$min;
 488         return $newtime;
 489 }
 490 sub p2pblock
 491 {
 492         my $P2PSTRING;
 493         my $DO;
 494         open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
 495         @p2ps = <FILE>;
 496         close FILE;
 497         my $CMD = "-m ipp2p";
 498         foreach my $p2pentry (sort @p2ps) {
 499                 my @p2pline = split( /\;/, $p2pentry );
 500                 if ( $fwdfwsettings{'POLICY'} eq 'MODE1' ) {
 501                         $DO = "ACCEPT";
 502                         if ("$p2pline[2]" eq "on") {
 503                                 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
 504                         }
 505                 }else {
 506                         $DO = "RETURN";
 507                         if ("$p2pline[2]" eq "off") {
 508                                 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
 509                         }
 510                 }
 511         }
 512         if ($MODE eq 1){
 513                 if($P2PSTRING){
 514                         print"/sbin/iptables --wait -A FORWARDFW $CMD $P2PSTRING -j $DO\n";
 515                 }
 516         }else{
 517                 if($P2PSTRING){
 518                         system("/sbin/iptables --wait -A FORWARDFW $CMD $P2PSTRING -j $DO");
 519                 }
 520         }
 521 }
 522 sub get_address
 523 {
 524         my $base=shift; #source of checking ($configfwdfw{$key}[x] or groupkey
 525         my $base2=shift;
 526         my $type=shift; #src or tgt
 527         my $hash;
 528         if ($type eq 'src'){
 529                 $hash=\%sourcehash;
 530         }else{
 531                 $hash=\%targethash;
 532         }
 533         my $key = &General::findhasharraykey($hash);
 534         if($base eq 'src_addr' || $base eq 'tgt_addr' ){
 535                 if (&General::validmac($base2)){
 536                         $$hash{$key}[0] = "-m mac --mac-source $base2";
 537                 }else{
 538                         $$hash{$key}[0] = $base2;
 539                 }
 540         }elsif($base eq 'std_net_src' || $base eq 'std_net_tgt' || $base eq 'Standard Network'){
 541                 $$hash{$key}[0]=&fwlib::get_std_net_ip($base2,$con);
 542         }elsif($base eq 'cust_net_src' || $base eq 'cust_net_tgt' || $base eq 'Custom Network'){
 543                 $$hash{$key}[0]=&fwlib::get_net_ip($base2);
 544         }elsif($base eq 'cust_host_src' || $base eq 'cust_host_tgt' || $base eq 'Custom Host'){
 545                 $$hash{$key}[0]=&fwlib::get_host_ip($base2,$type);
 546         }elsif($base eq 'ovpn_net_src' || $base eq 'ovpn_net_tgt' || $base eq 'OpenVPN static network'){
 547                 $$hash{$key}[0]=&fwlib::get_ovpn_net_ip($base2,1);
 548         }elsif($base eq 'ovpn_host_src' ||$base eq 'ovpn_host_tgt' || $base eq 'OpenVPN static host'){
 549                 $$hash{$key}[0]=&fwlib::get_ovpn_host_ip($base2,33);
 550         }elsif($base eq 'ovpn_n2n_src' ||$base eq 'ovpn_n2n_tgt' || $base eq 'OpenVPN N-2-N'){
 551                 $$hash{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,11);
 552         }elsif($base eq 'ipsec_net_src' || $base eq 'ipsec_net_tgt' || $base eq 'IpSec Network'){
 553                 $$hash{$key}[0]=&fwlib::get_ipsec_net_ip($base2,11);
 554         }elsif($base eq 'ipfire_src' ){
 555                 if($base2 eq 'GREEN'){
 556                         $$hash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
 557                 }
 558                 if($base2 eq 'BLUE'){
 559                         $$hash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
 560                 }
 561                 if($base2 eq 'ORANGE'){
 562                         $$hash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
 563                 }
 564                 if($base2 eq 'ALL'){
 565                         $$hash{$key}[0]='0.0.0.0/0';
 566                 }
 567                 if($base2 eq 'RED' || $base2 eq 'RED1'){
 568                         open(FILE, "/var/ipfire/red/local-ipaddress");
 569                         $$hash{$key}[0]= <FILE>;
 570                         close(FILE);
 571                 }else{
 572                         foreach my $alias (sort keys %aliases){
 573                                 if ($base2 eq $alias){
 574                                         $$hash{$key}[0]=$aliases{$alias}{'IPT'};
 575                                 }
 576                         }
 577                 }
 578         }
 579 }
 580 sub get_prot
 581 {
 582         my $hash=shift;
 583         my $key=shift;
 584         #check AH,GRE,ESP or ICMP
 585         if ($$hash{$key}[7] ne 'ON' && $$hash{$key}[11] ne 'ON'){
 586                 return "$$hash{$key}[8]";
 587         }
 588         if ($$hash{$key}[7] eq 'ON' || $$hash{$key}[11] eq 'ON'){
 589                 #check if servicegroup or service
 590                 if($$hash{$key}[14] eq 'cust_srv'){
 591                         return &fwlib::get_srv_prot($$hash{$key}[15]);
 592                 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
 593                         return &fwlib::get_srvgrp_prot($$hash{$key}[15]);
 594                 }elsif (($$hash{$key}[10] ne '' || $$hash{$key}[15] ne '') && $$hash{$key}[8] eq ''){ #when ports are used and prot set to "all"
 595                         return "TCP,UDP";
 596                 }elsif (($$hash{$key}[10] ne '' || $$hash{$key}[15] ne '') && ($$hash{$key}[8] eq 'TCP' || $$hash{$key}[8] eq 'UDP')){ #when ports are used and prot set to "tcp" or "udp"
 597                         return "$$hash{$key}[8]";
 598                 }elsif (($$hash{$key}[10] eq '' && $$hash{$key}[15] eq '') && $$hash{$key}[8] ne 'ICMP'){ #when ports are NOT used and prot NOT set to "ICMP"
 599                         return "$$hash{$key}[8]";
 600                 }else{
 601                         return "$$hash{$key}[8]";
 602                 }
 603         }
 604         #DNAT
 605         if ($SRC_TGT eq '' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[11] eq '' && $$hash{$key}[12] ne ''){
 606                 return "$$hash{$key}[8]";
 607         }
 608 }
 609 sub get_port
 610 {
 611         my $hash=shift;
 612         my $key=shift;
 613         my $prot=shift;
 614         #Get manual defined Ports from SOURCE
 615         if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
 616                 if ($$hash{$key}[10] ne ''){
 617                         $$hash{$key}[10] =~ s/\|/,/g;
 618                         if(index($$hash{$key}[10],",") > 0){
 619                                 return "-m multiport --sport $$hash{$key}[10] ";
 620                         }else{
 621                                 if($$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')  ){
 622                                         return "--sport $$hash{$key}[10] ";
 623                                 }else{
 624                                         return ":$$hash{$key}[10]";
 625                                 }
 626                         }
 627                 }
 628                 #Get manual ports from TARGET
 629         }elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
 630                 if($$hash{$key}[14] eq 'TGT_PORT'){
 631                         if ($$hash{$key}[15] ne ''){
 632                                 $$hash{$key}[15] =~ s/\|/,/g;
 633                                 if(index($$hash{$key}[15],",") > 0){
 634                                         return "-m multiport --dport $$hash{$key}[15] ";
 635                                 }else{
 636                                         if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ){
 637                                                 return "--dport $$hash{$key}[15] ";
 638                                          }else{
 639                                                  $$hash{$key}[15] =~ s/\:/-/g;
 640                                                  return ":$$hash{$key}[15]";
 641                                          }
 642                                 }
 643                         }
 644                 #Get ports defined in custom Service (firewall-groups)
 645                 }elsif($$hash{$key}[14] eq 'cust_srv'){
 646                         if ($prot ne 'ICMP'){
 647                                 if($$hash{$key}[31] eq 'dnat' && $$hash{$key}[28] eq 'ON'){
 648                                         my $ports =&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
 649                                         $ports =~ s/\:/-/g;
 650                                         return ":".$ports
 651                                 }else{
 652                                         return "--dport ".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
 653                                 }
 654                         }elsif($prot eq 'ICMP' && $$hash{$key}[11] eq 'ON'){        #When PROT is ICMP and "use targetport is checked, this is an icmp-service
 655                                 return "--icmp-type ".&fwlib::get_srv_port($$hash{$key}[15],3,$prot);
 656                         }
 657                 #Get ports from services which are used in custom servicegroups (firewall-groups)
 658                 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
 659                         if      ($prot ne 'ICMP'){
 660                                 return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
 661                         }
 662                         elsif($prot eq 'ICMP'){
 663                                 return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
 664                         }
 665                 }
 666         }
 667         #CHECK ICMP
 668         if ($$hash{$key}[7] ne 'ON' && $$hash{$key}[11] ne 'ON' && $SRC_TGT eq ''){
 669                 if($$hash{$key}[9] ne '' && $$hash{$key}[9] ne 'All ICMP-Types'){
 670                         return "--icmp-type $$hash{$key}[9] ";
 671                 }elsif($$hash{$key}[9] eq 'All ICMP-Types'){
 672                         return;
 673                 }
 674         }
 675 }