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