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 # MAIN
  89 &main();
  90
  91 sub main {
  92         # Flush all chains.
  93         &flush();
  94
  95         # Reload firewall rules.
  96         &preparerules();
  97
  98         # Load P2P block rules.
  99         &p2pblock();
 100
 101         # Reload firewall policy.
 102         run("/usr/sbin/firewall-policy");
 103 }
 104
 105 sub run {
 106         # Executes or prints the given shell command.
 107         my $command = shift;
 108
 109         if ($DEBUG) {
 110                 print "$command\n";
 111         } else {
 112                 system "$command";
 113         }
 114 }
 115
 116 sub flush {
 117         run("iptables --wait -F FORWARDFW");
 118         run("iptables --wait -F INPUTFW");
 119         run("iptables --wait -F OUTGOINGFW");
 120         run("iptables --wait -t nat -F NAT_DESTINATION");
 121         run("iptables --wait -t nat -F NAT_SOURCE");
 122 }
 123
 124 sub preparerules {
 125         if (! -z  "${General::swroot}/firewall/config"){
 126                 &buildrules(\%configfwdfw);
 127         }
 128         if (! -z  "${General::swroot}/firewall/input"){
 129                 &buildrules(\%configinputfw);
 130         }
 131         if (! -z  "${General::swroot}/firewall/outgoing"){
 132                 &buildrules(\%configoutgoingfw);
 133         }
 134 }
 135
 136 sub buildrules {
 137         my $hash=shift;
 138         my $STAG;
 139         my $natip;
 140         my $snatport;
 141         my $fireport;
 142         my $nat;
 143         my $fwaccessdport;
 144         my $natchain;
 145         my $icmptype;
 146         foreach my $key (sort {$a <=> $b} keys %$hash){
 147                 next if (($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1') && $conexists eq 'off' );
 148                 $command="iptables --wait -A";
 149                 if ($$hash{$key}[28] eq 'ON'){
 150                         $command='iptables --wait -t nat -A';
 151                         $natip=&get_nat_ip($$hash{$key}[29],$$hash{$key}[31]);
 152                         if($$hash{$key}[31] eq 'dnat'){
 153                                 $nat='DNAT';
 154                                 if ($$hash{$key}[30] =~ /\|/){
 155                                         $$hash{$key}[30]=~ tr/|/,/;
 156                                         $fireport='-m multiport --dport '.$$hash{$key}[30];
 157                                 }else{
 158                                         $fireport='--dport '.$$hash{$key}[30] if ($$hash{$key}[30]>0);
 159                                 }
 160                         }else{
 161                                 $nat='SNAT';
 162                         }
 163                 }
 164                 $STAG='';
 165                 if($$hash{$key}[2] eq 'ON'){
 166                         #get source ip's
 167                         if ($$hash{$key}[3] eq 'cust_grp_src'){
 168                                 foreach my $grp (sort {$a <=> $b} keys %customgrp){
 169                                                 if($customgrp{$grp}[0] eq $$hash{$key}[4]){
 170                                                 &get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"src");
 171                                         }
 172                                 }
 173                         }else{
 174                                 &get_address($$hash{$key}[3],$$hash{$key}[4],"src");
 175                         }
 176                         #get target ip's
 177                         if ($$hash{$key}[5] eq 'cust_grp_tgt'){
 178                                 foreach my $grp (sort {$a <=> $b} keys %customgrp){
 179                                         if($customgrp{$grp}[0] eq $$hash{$key}[6]){
 180                                                 &get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"tgt");
 181                                         }
 182                                 }
 183                         }elsif($$hash{$key}[5] eq 'ipfire' ){
 184                                 if($$hash{$key}[6] eq 'GREEN'){
 185                                         $targethash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
 186                                 }
 187                                 if($$hash{$key}[6] eq 'BLUE'){
 188                                         $targethash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
 189                                 }
 190                                 if($$hash{$key}[6] eq 'ORANGE'){
 191                                         $targethash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
 192                                 }
 193                                 if($$hash{$key}[6] eq 'ALL'){
 194                                         $targethash{$key}[0]='0.0.0.0/0';
 195                                 }
 196                                 if($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1'){
 197                                         open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
 198                                         $targethash{$key}[0]= <FILE>;
 199                                         close(FILE);
 200                                 }else{
 201                                         foreach my $alias (sort keys %aliases){
 202                                                 if ($$hash{$key}[6] eq $alias){
 203                                                         $targethash{$key}[0]=$aliases{$alias}{'IPT'};
 204                                                 }
 205                                         }
 206                                 }
 207                         }else{
 208                                 &get_address($$hash{$key}[5],$$hash{$key}[6],"tgt");
 209                         }
 210                         ##get source prot and port
 211                         $SRC_TGT='SRC';
 212                         $SPORT = &get_port($hash,$key);
 213                         $SRC_TGT='';
 214
 215                         ##get target prot and port
 216                         $DPROT=&get_prot($hash,$key);
 217
 218                         if ($DPROT eq ''){$DPROT=' ';}
 219                         @DPROT=split(",",$DPROT);
 220
 221                         #get time if defined
 222                         if($$hash{$key}[18] eq 'ON'){
 223                                 my ($time1,$time2,$daylight);
 224                                 my $daylight=$$hash{$key}[28];
 225                                 $time1=&get_time($$hash{$key}[26],$daylight);
 226                                 $time2=&get_time($$hash{$key}[27],$daylight);
 227                                 if($$hash{$key}[19] ne ''){push (@timeframe,"Mon");}
 228                                 if($$hash{$key}[20] ne ''){push (@timeframe,"Tue");}
 229                                 if($$hash{$key}[21] ne ''){push (@timeframe,"Wed");}
 230                                 if($$hash{$key}[22] ne ''){push (@timeframe,"Thu");}
 231                                 if($$hash{$key}[23] ne ''){push (@timeframe,"Fri");}
 232                                 if($$hash{$key}[24] ne ''){push (@timeframe,"Sat");}
 233                                 if($$hash{$key}[25] ne ''){push (@timeframe,"Sun");}
 234                                 $TIME=join(",",@timeframe);
 235
 236                                 $TIMEFROM="--timestart $time1 ";
 237                                 $TIMETILL="--timestop $time2 ";
 238                                 $TIME="-m time --weekdays $TIME $TIMEFROM $TIMETILL";
 239                         }
 240                         foreach my $DPROT (@DPROT){
 241                                 $DPORT = &get_port($hash,$key,$DPROT);
 242                                 $PROT=$DPROT;
 243                                 $PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
 244                                 if ($DPROT ne 'TCP' && $DPROT ne'UDP' && $DPROT ne 'ICMP' ){
 245                                         $DPORT='';
 246                                 }
 247                                 foreach my $a (sort keys %sourcehash){
 248                                         foreach my $b (sort keys %targethash){
 249                                                 if(! $sourcehash{$a}[0] || ! $targethash{$b}[0] || ($natip eq '-d ' && $$hash{$key}[28] eq 'ON') || (!$natip && $$hash{$key}[28] eq 'ON')){
 250                                                         #Skip rules when no RED IP is set (DHCP,DSL)
 251                                                         next;
 252                                                 }
 253                                                 next if ($targethash{$b}[0] eq 'none');
 254                                                 $STAG='';
 255                                                 if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
 256                                                         if($DPROT ne ''){
 257                                                                 if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
 258                                                                 #Process ICMP RULE
 259                                                                 if(substr($DPORT, 2, 4) eq 'icmp'){
 260                                                                         my @icmprule= split(",",substr($DPORT, 12,));
 261                                                                         foreach (@icmprule){
 262                                                                                 $icmptype="--icmp-type ";
 263                                                                                 if ($_ eq "BLANK") {
 264                                                                                                 $icmptype="";
 265                                                                                                 $_="";
 266                                                                                 }
 267                                                                                 if ($$hash{$key}[17] eq 'ON'){
 268                                                                                         run("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG");
 269                                                                                 }
 270                                                                                         run("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]");
 271                                                                         }
 272                                                                 #PROCESS DNAT RULE (Portforward)
 273                                                                 }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
 274                                                                         $natchain='NAT_DESTINATION';
 275                                                                         if ($$hash{$key}[17] eq 'ON'){
 276                                                                                 run("$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT'");
 277                                                                         }
 278                                                                         my ($ip,$sub) =split("/",$targethash{$b}[0]);
 279                                                                         #Process NAT with servicegroup used
 280                                                                         if ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[14] eq 'cust_srvgrp'){
 281                                                                                 run("$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to-destination $ip $DPORT");
 282                                                                                 $fwaccessdport=$DPORT;
 283                                                                         }else{
 284                                                                                 run("$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to-destination $ip$DPORT");
 285                                                                                 $DPORT =~ s/\-/:/g;
 286                                                                                 if ($DPORT){
 287                                                                                         $fwaccessdport="--dport ".substr($DPORT,1,);
 288                                                                                 }elsif(! $DPORT && $$hash{$key}[30] ne ''){
 289                                                                                         if ($$hash{$key}[30]=~m/|/i){
 290                                                                                                 $$hash{$key}[30] =~ s/\|/,/g;
 291                                                                                                 $fwaccessdport="-m multiport --dport $$hash{$key}[30]";
 292                                                                                         }else{
 293                                                                                                 $fwaccessdport="--dport $$hash{$key}[30]";
 294                                                                                         }
 295                                                                                 }
 296                                                                         }
 297                                                                         run("iptables --wait -A FORWARDFW $PROT $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]");
 298                                                                         next;
 299                                                                 #PROCESS SNAT RULE
 300                                                                 }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
 301                                                                         $natchain='NAT_SOURCE';
 302                                                                         if ($$hash{$key}[17] eq 'ON' ){
 303                                                                                 run("$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT'");
 304                                                                         }
 305                                                                         run("$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to-source $natip");
 306                                                                 }
 307                                                                 #PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
 308                                                                 if ($PROT ne '-p ICMP'){
 309                                                                         if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
 310                                                                                 run("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG");
 311                                                                         }
 312                                                                         run("iptables --wait -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]");
 313                                                                 }
 314                                                                 #PROCESS Prot ICMP and type = All ICMP-Types
 315                                                                 if ($PROT eq '-p ICMP' && $$hash{$key}[9] eq 'All ICMP-Types'){
 316                                                                         if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
 317                                                                                 run("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG");
 318                                                                         }
 319                                                                         run("iptables --wait -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]");
 320                                                                 }
 321                                                         }
 322                                                 }
 323                                         }
 324                                 }
 325                         }
 326                 }
 327                 %sourcehash=();
 328                 %targethash=();
 329                 undef $TIME;
 330                 undef $TIMEFROM;
 331                 undef $TIMETILL;
 332                 undef $fireport;
 333         }
 334 }
 335
 336 sub get_nat_ip {
 337         my $val=shift;
 338         my $type=shift;
 339         my $result;
 340         if($val eq 'RED' || $val eq 'GREEN' || $val eq 'ORANGE' || $val eq 'BLUE'){
 341                 $result=$defaultNetworks{$val.'_ADDRESS'};
 342         }elsif($val eq 'ALL'){
 343                 $result='-i '.$con;
 344         }elsif($val eq 'Default IP' && $type eq 'dnat'){
 345                 $result='-d '.$redip;
 346         }elsif($val eq 'Default IP' && $type eq 'snat'){
 347                 $result=$redip;
 348         }else{
 349                 foreach my $al (sort keys %aliases){
 350                         if($val eq $al && $type eq 'dnat'){
 351                                 $result='-d '.$aliases{$al}{'IPT'};
 352                         }elsif($val eq $al && $type eq 'snat'){
 353                                 $result=$aliases{$al}{'IPT'};
 354                         }
 355                 }
 356         }
 357         return $result;
 358 }
 359
 360 sub get_time {
 361         my $val=shift;
 362         my $val1=shift;
 363         my $time;
 364         my $minutes;
 365         my $ruletime;
 366         $minutes = &utcmin($val);
 367         $ruletime = $minutes + &time_get_utc($val);
 368         if ($ruletime < 0){$ruletime +=1440;}
 369         if ($ruletime > 1440){$ruletime -=1440;}
 370         $time=sprintf "%02d:%02d", $ruletime / 60, $ruletime % 60;
 371         return $time;
 372 }
 373
 374 sub time_get_utc {
 375         # Calculates the UTCtime from a given time
 376         my $val=shift;
 377         my @localtime=localtime(time);
 378         my @gmtime=gmtime(time);
 379         my $diff = ($gmtime[2]*60+$gmtime[1]%60)-($localtime[2]*60+$localtime[1]%60);
 380         return $diff;
 381 }
 382
 383 sub utcmin {
 384         my $ruletime=shift;
 385         my ($hrs,$min) = split(":",$ruletime);
 386         my $newtime = $hrs*60+$min;
 387         return $newtime;
 388 }
 389
 390 sub p2pblock {
 391         my $P2PSTRING;
 392         my $DO;
 393         open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
 394         @p2ps = <FILE>;
 395         close FILE;
 396         my $CMD = "-m ipp2p";
 397         foreach my $p2pentry (sort @p2ps) {
 398                 my @p2pline = split( /\;/, $p2pentry );
 399                 if ( $fwdfwsettings{'POLICY'} eq 'MODE1' ) {
 400                         $DO = "ACCEPT";
 401                         if ("$p2pline[2]" eq "on") {
 402                                 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
 403                         }
 404                 }else {
 405                         $DO = "RETURN";
 406                         if ("$p2pline[2]" eq "off") {
 407                                 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
 408                         }
 409                 }
 410         }
 411
 412         if($P2PSTRING) {
 413                 run("/sbin/iptables --wait -A FORWARDFW $CMD $P2PSTRING -j $DO");
 414         }
 415 }
 416
 417 sub get_address {
 418         my $base=shift; #source of checking ($configfwdfw{$key}[x] or groupkey
 419         my $base2=shift;
 420         my $type=shift; #src or tgt
 421         my $hash;
 422         if ($type eq 'src'){
 423                 $hash=\%sourcehash;
 424         }else{
 425                 $hash=\%targethash;
 426         }
 427         my $key = &General::findhasharraykey($hash);
 428         if($base eq 'src_addr' || $base eq 'tgt_addr' ){
 429                 if (&General::validmac($base2)){
 430                         $$hash{$key}[0] = "-m mac --mac-source $base2";
 431                 }else{
 432                         $$hash{$key}[0] = $base2;
 433                 }
 434         }elsif($base eq 'std_net_src' || $base eq 'std_net_tgt' || $base eq 'Standard Network'){
 435                 $$hash{$key}[0]=&fwlib::get_std_net_ip($base2,$con);
 436         }elsif($base eq 'cust_net_src' || $base eq 'cust_net_tgt' || $base eq 'Custom Network'){
 437                 $$hash{$key}[0]=&fwlib::get_net_ip($base2);
 438         }elsif($base eq 'cust_host_src' || $base eq 'cust_host_tgt' || $base eq 'Custom Host'){
 439                 $$hash{$key}[0]=&fwlib::get_host_ip($base2,$type);
 440         }elsif($base eq 'ovpn_net_src' || $base eq 'ovpn_net_tgt' || $base eq 'OpenVPN static network'){
 441                 $$hash{$key}[0]=&fwlib::get_ovpn_net_ip($base2,1);
 442         }elsif($base eq 'ovpn_host_src' ||$base eq 'ovpn_host_tgt' || $base eq 'OpenVPN static host'){
 443                 $$hash{$key}[0]=&fwlib::get_ovpn_host_ip($base2,33);
 444         }elsif($base eq 'ovpn_n2n_src' ||$base eq 'ovpn_n2n_tgt' || $base eq 'OpenVPN N-2-N'){
 445                 $$hash{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,11);
 446         }elsif($base eq 'ipsec_net_src' || $base eq 'ipsec_net_tgt' || $base eq 'IpSec Network'){
 447                 $$hash{$key}[0]=&fwlib::get_ipsec_net_ip($base2,11);
 448         }elsif($base eq 'ipfire_src' ){
 449                 if($base2 eq 'GREEN'){
 450                         $$hash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
 451                 }
 452                 if($base2 eq 'BLUE'){
 453                         $$hash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
 454                 }
 455                 if($base2 eq 'ORANGE'){
 456                         $$hash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
 457                 }
 458                 if($base2 eq 'ALL'){
 459                         $$hash{$key}[0]='0.0.0.0/0';
 460                 }
 461                 if($base2 eq 'RED' || $base2 eq 'RED1'){
 462                         open(FILE, "/var/ipfire/red/local-ipaddress");
 463                         $$hash{$key}[0]= <FILE>;
 464                         close(FILE);
 465                 }else{
 466                         foreach my $alias (sort keys %aliases){
 467                                 if ($base2 eq $alias){
 468                                         $$hash{$key}[0]=$aliases{$alias}{'IPT'};
 469                                 }
 470                         }
 471                 }
 472         }
 473 }
 474
 475 sub get_prot {
 476         my $hash=shift;
 477         my $key=shift;
 478         #check AH,GRE,ESP or ICMP
 479         if ($$hash{$key}[7] ne 'ON' && $$hash{$key}[11] ne 'ON'){
 480                 return "$$hash{$key}[8]";
 481         }
 482         if ($$hash{$key}[7] eq 'ON' || $$hash{$key}[11] eq 'ON'){
 483                 #check if servicegroup or service
 484                 if($$hash{$key}[14] eq 'cust_srv'){
 485                         return &fwlib::get_srv_prot($$hash{$key}[15]);
 486                 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
 487                         return &fwlib::get_srvgrp_prot($$hash{$key}[15]);
 488                 }elsif (($$hash{$key}[10] ne '' || $$hash{$key}[15] ne '') && $$hash{$key}[8] eq ''){ #when ports are used and prot set to "all"
 489                         return "TCP,UDP";
 490                 }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"
 491                         return "$$hash{$key}[8]";
 492                 }elsif (($$hash{$key}[10] eq '' && $$hash{$key}[15] eq '') && $$hash{$key}[8] ne 'ICMP'){ #when ports are NOT used and prot NOT set to "ICMP"
 493                         return "$$hash{$key}[8]";
 494                 }else{
 495                         return "$$hash{$key}[8]";
 496                 }
 497         }
 498         #DNAT
 499         if ($SRC_TGT eq '' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[11] eq '' && $$hash{$key}[12] ne ''){
 500                 return "$$hash{$key}[8]";
 501         }
 502 }
 503
 504 sub get_port {
 505         my $hash=shift;
 506         my $key=shift;
 507         my $prot=shift;
 508         #Get manual defined Ports from SOURCE
 509         if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
 510                 if ($$hash{$key}[10] ne ''){
 511                         $$hash{$key}[10] =~ s/\|/,/g;
 512                         if(index($$hash{$key}[10],",") > 0){
 513                                 return "-m multiport --sport $$hash{$key}[10] ";
 514                         }else{
 515                                 if($$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')  ){
 516                                         return "--sport $$hash{$key}[10] ";
 517                                 }else{
 518                                         return ":$$hash{$key}[10]";
 519                                 }
 520                         }
 521                 }
 522                 #Get manual ports from TARGET
 523         }elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
 524                 if($$hash{$key}[14] eq 'TGT_PORT'){
 525                         if ($$hash{$key}[15] ne ''){
 526                                 $$hash{$key}[15] =~ s/\|/,/g;
 527                                 if(index($$hash{$key}[15],",") > 0){
 528                                         return "-m multiport --dport $$hash{$key}[15] ";
 529                                 }else{
 530                                         if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ){
 531                                                 return "--dport $$hash{$key}[15] ";
 532                                          }else{
 533                                                  $$hash{$key}[15] =~ s/\:/-/g;
 534                                                  return ":$$hash{$key}[15]";
 535                                          }
 536                                 }
 537                         }
 538                 #Get ports defined in custom Service (firewall-groups)
 539                 }elsif($$hash{$key}[14] eq 'cust_srv'){
 540                         if ($prot ne 'ICMP'){
 541                                 if($$hash{$key}[31] eq 'dnat' && $$hash{$key}[28] eq 'ON'){
 542                                         my $ports =&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
 543                                         $ports =~ s/\:/-/g;
 544                                         return ":".$ports
 545                                 }else{
 546                                         return "--dport ".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
 547                                 }
 548                         }elsif($prot eq 'ICMP' && $$hash{$key}[11] eq 'ON'){        #When PROT is ICMP and "use targetport is checked, this is an icmp-service
 549                                 return "--icmp-type ".&fwlib::get_srv_port($$hash{$key}[15],3,$prot);
 550                         }
 551                 #Get ports from services which are used in custom servicegroups (firewall-groups)
 552                 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
 553                         if      ($prot ne 'ICMP'){
 554                                 return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
 555                         }
 556                         elsif($prot eq 'ICMP'){
 557                                 return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
 558                         }
 559                 }
 560         }
 561         #CHECK ICMP
 562         if ($$hash{$key}[7] ne 'ON' && $$hash{$key}[11] ne 'ON' && $SRC_TGT eq ''){
 563                 if($$hash{$key}[9] ne '' && $$hash{$key}[9] ne 'All ICMP-Types'){
 564                         return "--icmp-type $$hash{$key}[9] ";
 565                 }elsif($$hash{$key}[9] eq 'All ICMP-Types'){
 566                         return;
 567                 }
 568         }
 569 }