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                                                         next if ($targethash{$b}[0] eq 'none');
 262                                                         $STAG='';
 263                                                         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'){
 264                                                                 if($DPROT ne ''){
 265                                                                         if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
 266                                                                         #Process ICMP RULE
 267                                                                         if(substr($DPORT, 2, 4) eq 'icmp'){
 268                                                                                 my @icmprule= split(",",substr($DPORT, 12,));
 269                                                                                 foreach (@icmprule){
 270                                                                                         $icmptype="--icmp-type ";
 271                                                                                         if ($_ eq "BLANK") {
 272                                                                                                         $icmptype="";
 273                                                                                                         $_="";
 274                                                                                         }
 275                                                                                         if ($$hash{$key}[17] eq 'ON'){
 276                                                                                                 print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG\n";
 277                                                                                         }
 278                                                                                                 print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]\n";
 279                                                                                 }
 280                                                                         #PROCESS DNAT RULE (Portforward)
 281                                                                         }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
 282                                                                                 $natchain='NAT_DESTINATION';
 283                                                                                 if ($$hash{$key}[17] eq 'ON'){
 284                                                                                         print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
 285                                                                                 }
 286                                                                                 my ($ip,$sub) =split("/",$targethash{$b}[0]);
 287                                                                                 #Process NAT with servicegroup used
 288                                                                                 if ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[14] eq 'cust_srvgrp'){
 289                                                                                         print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to-destination $ip $DPORT\n";
 290                                                                                         $fwaccessdport=$DPORT;
 291                                                                                 }else{
 292                                                                                         print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to-destination $ip$DPORT\n";
 293                                                                                         $DPORT =~ s/\-/:/g;
 294                                                                                         if ($DPORT){
 295                                                                                                 $fwaccessdport="--dport ".substr($DPORT,1,);
 296                                                                                         }elsif(! $DPORT && $$hash{$key}[30] ne ''){
 297                                                                                                 if ($$hash{$key}[30]=~m/|/i){
 298                                                                                                         $$hash{$key}[30] =~ s/\|/,/g;
 299                                                                                                         $fwaccessdport="-m multiport --dport $$hash{$key}[30]";
 300                                                                                                 }else{
 301                                                                                                         $fwaccessdport="--dport $$hash{$key}[30]";
 302                                                                                                 }
 303                                                                                         }
 304                                                                                 }
 305                                                                                 print "iptables --wait -A FORWARDFW $PROT $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
 306                                                                                 next;
 307                                                                         #PROCESS SNAT RULE
 308                                                                         }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
 309                                                                                 $natchain='NAT_SOURCE';
 310                                                                                 if ($$hash{$key}[17] eq 'ON' ){
 311                                                                                         print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT' \n";
 312                                                                                 }
 313                                                                                 print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to-source $natip\n";
 314                                                                         }
 315                                                                         #PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
 316                                                                         if ($PROT ne '-p ICMP'){
 317                                                                                 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
 318                                                                                         print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
 319                                                                                 }
 320                                                                                 print "iptables --wait -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
 321                                                                         }
 322                                                                         #PROCESS Prot ICMP and type = All ICMP-Types
 323                                                                         if ($PROT eq '-p ICMP' && $$hash{$key}[9] eq 'All ICMP-Types'){
 324                                                                                 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
 325                                                                                         print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
 326                                                                                 }
 327                                                                                 print "iptables --wait -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
 328                                                                         }
 329                                                                 }
 330                                                         }
 331                                                 }
 332                                         }
 333                                         print"\n";
 334                                 }
 335                         }elsif($MODE eq '0'){
 336                                 foreach my $DPROT (@DPROT){
 337                                         $DPORT = &get_port($hash,$key,$DPROT);
 338                                         $PROT=$DPROT;
 339                                         $PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
 340                                         if ($DPROT ne 'TCP' && $DPROT ne'UDP' && $DPROT ne 'ICMP' ){
 341                                                 $DPORT='';
 342                                         }
 343                                         foreach my $a (sort keys %sourcehash){
 344                                                 foreach my $b (sort keys %targethash){
 345                                                         next if ($targethash{$b}[0] eq 'none');
 346                                                         $STAG='';
 347                                                         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'){
 348                                                                 if($DPROT ne ''){
 349                                                                         if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
 350                                                                         #Process ICMP RULE
 351                                                                         if(substr($DPORT, 2, 4) eq 'icmp'){
 352                                                                                 my @icmprule= split(",",substr($DPORT, 12,));
 353                                                                                 foreach (@icmprule){
 354                                                                                         $icmptype="--icmp-type ";
 355                                                                                         if ($_ eq "BLANK") {
 356                                                                                                         $icmptype="";
 357                                                                                                         $_="";
 358                                                                                         }
 359                                                                                         if ($$hash{$key}[17] eq 'ON'){
 360                                                                                                 system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG");
 361                                                                                         }
 362                                                                                                 system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]");
 363                                                                                 }
 364                                                                         #PROCESS DNAT RULE (Portforward)
 365                                                                         }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
 366                                                                                 $natchain='NAT_DESTINATION';
 367                                                                                 if ($$hash{$key}[17] eq 'ON'){
 368                                                                                         system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
 369                                                                                 }
 370                                                                                 my ($ip,$sub) =split("/",$targethash{$b}[0]);
 371                                                                                 #Process NAT with servicegroup used
 372                                                                                 if ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[14] eq 'cust_srvgrp'){
 373                                                                                         system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to-destination $ip $DPORT\n";
 374                                                                                         $fwaccessdport=$DPORT;
 375                                                                                 }else{
 376                                                                                         system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to-destination $ip$DPORT\n";
 377                                                                                         $DPORT =~ s/\-/:/g;
 378                                                                                         if ($DPORT){
 379                                                                                                 $fwaccessdport="--dport ".substr($DPORT,1,);
 380                                                                                         }elsif(! $DPORT && $$hash{$key}[30] ne ''){
 381                                                                                                 if ($$hash{$key}[30]=~m/|/i){
 382                                                                                                         $$hash{$key}[30] =~ s/\|/,/g;
 383                                                                                                         $fwaccessdport="-m multiport --dport $$hash{$key}[30]";
 384                                                                                                 }else{
 385                                                                                                         $fwaccessdport="--dport $$hash{$key}[30]";
 386                                                                                                 }
 387                                                                                         }
 388                                                                                 }
 389                                                                                 system "iptables --wait -A FORWARDFW $PROT $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
 390                                                                                 next;
 391                                                                         #PROCESS SNAT RULE
 392                                                                         }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
 393                                                                                 $natchain='NAT_SOURCE';
 394                                                                                 if ($$hash{$key}[17] eq 'ON' ){
 395                                                                                         system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT' \n";
 396                                                                                 }
 397                                                                                 system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to-source $natip\n";
 398                                                                         }
 399                                                                         #PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
 400                                                                         if ($PROT ne '-p ICMP'){
 401                                                                                 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
 402                                                                                         system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
 403                                                                                 }
 404                                                                                 system "iptables --wait -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
 405                                                                         }
 406                                                                         #PROCESS Prot ICMP and type = All ICMP-Types
 407                                                                         if ($PROT eq '-p ICMP' && $$hash{$key}[9] eq 'All ICMP-Types'){
 408                                                                                 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
 409                                                                                         system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
 410                                                                                 }
 411                                                                                 system "iptables --wait -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
 412                                                                         }
 413                                                                 }
 414                                                         }
 415                                                 }
 416                                         }
 417                                 }
 418                         }
 419                 }
 420                 %sourcehash=();
 421                 %targethash=();
 422                 undef $TIME;
 423                 undef $TIMEFROM;
 424                 undef $TIMETILL;
 425                 undef $fireport;
 426         }
 427 }
 428 sub get_nat_ip
 429 {
 430         my $val=shift;
 431         my $type=shift;
 432         my $result;
 433         if($val eq 'RED' || $val eq 'GREEN' || $val eq 'ORANGE' || $val eq 'BLUE'){
 434                 $result=$defaultNetworks{$val.'_ADDRESS'};
 435         }elsif($val eq 'ALL'){
 436                 $result='-i '.$con;
 437         }elsif($val eq 'Default IP' && $type eq 'dnat'){
 438                 $result='-d '.$redip;
 439         }elsif($val eq 'Default IP' && $type eq 'snat'){
 440                 $result=$redip;
 441         }else{
 442                 foreach my $al (sort keys %aliases){
 443                         if($val eq $al && $type eq 'dnat'){
 444                                 $result='-d '.$aliases{$al}{'IPT'};
 445                         }elsif($val eq $al && $type eq 'snat'){
 446                                 $result=$aliases{$al}{'IPT'};
 447                         }
 448                 }
 449         }
 450         return $result;
 451 }
 452 sub get_time
 453 {
 454         my $val=shift;
 455         my $val1=shift;
 456         my $time;
 457         my $minutes;
 458         my $ruletime;
 459         $minutes = &utcmin($val);
 460         $ruletime = $minutes + &time_get_utc($val);
 461         if ($ruletime < 0){$ruletime +=1440;}
 462         if ($ruletime > 1440){$ruletime -=1440;}
 463         $time=sprintf "%02d:%02d", $ruletime / 60, $ruletime % 60;
 464         return $time;
 465 }
 466 sub time_get_utc
 467 {
 468         # Calculates the UTCtime from a given time
 469         my $val=shift;
 470         my @localtime=localtime(time);
 471         my @gmtime=gmtime(time);
 472         my $diff = ($gmtime[2]*60+$gmtime[1]%60)-($localtime[2]*60+$localtime[1]%60);
 473         return $diff;
 474 }
 475 sub utcmin
 476 {
 477         my $ruletime=shift;
 478         my ($hrs,$min) = split(":",$ruletime);
 479         my $newtime = $hrs*60+$min;
 480         return $newtime;
 481 }
 482 sub p2pblock
 483 {
 484         my $P2PSTRING;
 485         my $DO;
 486         open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
 487         @p2ps = <FILE>;
 488         close FILE;
 489         my $CMD = "-m ipp2p";
 490         foreach my $p2pentry (sort @p2ps) {
 491                 my @p2pline = split( /\;/, $p2pentry );
 492                 if ( $fwdfwsettings{'POLICY'} eq 'MODE1' ) {
 493                         $DO = "ACCEPT";
 494                         if ("$p2pline[2]" eq "on") {
 495                                 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
 496                         }
 497                 }else {
 498                         $DO = "RETURN";
 499                         if ("$p2pline[2]" eq "off") {
 500                                 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
 501                         }
 502                 }
 503         }
 504         if ($MODE eq 1){
 505                 if($P2PSTRING){
 506                         print"/sbin/iptables --wait -A FORWARDFW $CMD $P2PSTRING -j $DO\n";
 507                 }
 508         }else{
 509                 if($P2PSTRING){
 510                         system("/sbin/iptables --wait -A FORWARDFW $CMD $P2PSTRING -j $DO");
 511                 }
 512         }
 513 }
 514 sub get_address
 515 {
 516         my $base=shift; #source of checking ($configfwdfw{$key}[x] or groupkey
 517         my $base2=shift;
 518         my $type=shift; #src or tgt
 519         my $hash;
 520         if ($type eq 'src'){
 521                 $hash=\%sourcehash;
 522         }else{
 523                 $hash=\%targethash;
 524         }
 525         my $key = &General::findhasharraykey($hash);
 526         if($base eq 'src_addr' || $base eq 'tgt_addr' ){
 527                 if (&General::validmac($base2)){
 528                         $$hash{$key}[0] = "-m mac --mac-source $base2";
 529                 }else{
 530                         $$hash{$key}[0] = $base2;
 531                 }
 532         }elsif($base eq 'std_net_src' || $base eq 'std_net_tgt' || $base eq 'Standard Network'){
 533                 $$hash{$key}[0]=&fwlib::get_std_net_ip($base2,$con);
 534         }elsif($base eq 'cust_net_src' || $base eq 'cust_net_tgt' || $base eq 'Custom Network'){
 535                 $$hash{$key}[0]=&fwlib::get_net_ip($base2);
 536         }elsif($base eq 'cust_host_src' || $base eq 'cust_host_tgt' || $base eq 'Custom Host'){
 537                 $$hash{$key}[0]=&fwlib::get_host_ip($base2,$type);
 538         }elsif($base eq 'ovpn_net_src' || $base eq 'ovpn_net_tgt' || $base eq 'OpenVPN static network'){
 539                 $$hash{$key}[0]=&fwlib::get_ovpn_net_ip($base2,1);
 540         }elsif($base eq 'ovpn_host_src' ||$base eq 'ovpn_host_tgt' || $base eq 'OpenVPN static host'){
 541                 $$hash{$key}[0]=&fwlib::get_ovpn_host_ip($base2,33);
 542         }elsif($base eq 'ovpn_n2n_src' ||$base eq 'ovpn_n2n_tgt' || $base eq 'OpenVPN N-2-N'){
 543                 $$hash{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,11);
 544         }elsif($base eq 'ipsec_net_src' || $base eq 'ipsec_net_tgt' || $base eq 'IpSec Network'){
 545                 $$hash{$key}[0]=&fwlib::get_ipsec_net_ip($base2,11);
 546         }elsif($base eq 'ipfire_src' ){
 547                 if($base2 eq 'GREEN'){
 548                         $$hash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
 549                 }
 550                 if($base2 eq 'BLUE'){
 551                         $$hash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
 552                 }
 553                 if($base2 eq 'ORANGE'){
 554                         $$hash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
 555                 }
 556                 if($base2 eq 'ALL'){
 557                         $$hash{$key}[0]='0.0.0.0/0';
 558                 }
 559                 if($base2 eq 'RED' || $base2 eq 'RED1'){
 560                         open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
 561                         $$hash{$key}[0]= <FILE>;
 562                         close(FILE);
 563                 }else{
 564                         foreach my $alias (sort keys %aliases){
 565                                 if ($base2 eq $alias){
 566                                         $$hash{$key}[0]=$aliases{$alias}{'IPT'};
 567                                 }
 568                         }
 569                 }
 570         }
 571 }
 572 sub get_prot
 573 {
 574         my $hash=shift;
 575         my $key=shift;
 576         #check AH,GRE,ESP or ICMP
 577         if ($$hash{$key}[7] ne 'ON' && $$hash{$key}[11] ne 'ON'){
 578                 return "$$hash{$key}[8]";
 579         }
 580         if ($$hash{$key}[7] eq 'ON' || $$hash{$key}[11] eq 'ON'){
 581                 #check if servicegroup or service
 582                 if($$hash{$key}[14] eq 'cust_srv'){
 583                         return &fwlib::get_srv_prot($$hash{$key}[15]);
 584                 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
 585                         return &fwlib::get_srvgrp_prot($$hash{$key}[15]);
 586                 }elsif (($$hash{$key}[10] ne '' || $$hash{$key}[15] ne '') && $$hash{$key}[8] eq ''){ #when ports are used and prot set to "all"
 587                         return "TCP,UDP";
 588                 }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"
 589                         return "$$hash{$key}[8]";
 590                 }elsif (($$hash{$key}[10] eq '' && $$hash{$key}[15] eq '') && $$hash{$key}[8] ne 'ICMP'){ #when ports are NOT used and prot NOT set to "ICMP"
 591                         return "$$hash{$key}[8]";
 592                 }else{
 593                         return "$$hash{$key}[8]";
 594                 }
 595         }
 596         #DNAT
 597         if ($SRC_TGT eq '' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[11] eq '' && $$hash{$key}[12] ne ''){
 598                 return "$$hash{$key}[8]";
 599         }
 600 }
 601 sub get_port
 602 {
 603         my $hash=shift;
 604         my $key=shift;
 605         my $prot=shift;
 606         #Get manual defined Ports from SOURCE
 607         if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
 608                 if ($$hash{$key}[10] ne ''){
 609                         $$hash{$key}[10] =~ s/\|/,/g;
 610                         if(index($$hash{$key}[10],",") > 0){
 611                                 return "-m multiport --sport $$hash{$key}[10] ";
 612                         }else{
 613                                 if($$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')  ){
 614                                         return "--sport $$hash{$key}[10] ";
 615                                 }else{
 616                                         return ":$$hash{$key}[10]";
 617                                 }
 618                         }
 619                 }
 620                 #Get manual ports from TARGET
 621         }elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
 622                 if($$hash{$key}[14] eq 'TGT_PORT'){
 623                         if ($$hash{$key}[15] ne ''){
 624                                 $$hash{$key}[15] =~ s/\|/,/g;
 625                                 if(index($$hash{$key}[15],",") > 0){
 626                                         return "-m multiport --dport $$hash{$key}[15] ";
 627                                 }else{
 628                                         if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ){
 629                                                 return "--dport $$hash{$key}[15] ";
 630                                          }else{
 631                                                  $$hash{$key}[15] =~ s/\:/-/g;
 632                                                  return ":$$hash{$key}[15]";
 633                                          }
 634                                 }
 635                         }
 636                 #Get ports defined in custom Service (firewall-groups)
 637                 }elsif($$hash{$key}[14] eq 'cust_srv'){
 638                         if ($prot ne 'ICMP'){
 639                                 if($$hash{$key}[31] eq 'dnat' && $$hash{$key}[28] eq 'ON'){
 640                                         my $ports =&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
 641                                         $ports =~ s/\:/-/g;
 642                                         return ":".$ports
 643                                 }else{
 644                                         return "--dport ".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
 645                                 }
 646                         }elsif($prot eq 'ICMP' && $$hash{$key}[11] eq 'ON'){        #When PROT is ICMP and "use targetport is checked, this is an icmp-service
 647                                 return "--icmp-type ".&fwlib::get_srv_port($$hash{$key}[15],3,$prot);
 648                         }
 649                 #Get ports from services which are used in custom servicegroups (firewall-groups)
 650                 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
 651                         if      ($prot ne 'ICMP'){
 652                                 return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
 653                         }
 654                         elsif($prot eq 'ICMP'){
 655                                 return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
 656                         }
 657                 }
 658         }
 659         #CHECK ICMP
 660         if ($$hash{$key}[7] ne 'ON' && $$hash{$key}[11] ne 'ON' && $SRC_TGT eq ''){
 661                 if($$hash{$key}[9] ne '' && $$hash{$key}[9] ne 'All ICMP-Types'){
 662                         return "--icmp-type $$hash{$key}[9] ";
 663                 }elsif($$hash{$key}[9] eq 'All ICMP-Types'){
 664                         return;
 665                 }
 666         }
 667 }