config/firewall/rules.pl

   1 #!/usr/bin/perl -w
   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
  25 require '/var/ipfire/general-functions.pl';
  26 require "${General::swroot}/lang.pl";
  27 require "/usr/lib/firewall/firewall-lib.pl";
  28
  29 # Set to one to enable debugging mode.
  30 my $DEBUG = 0;
  31
  32 my $IPTABLES = "iptables --wait";
  33
  34 # iptables chains
  35 my $CHAIN                 = "FORWARDFW";
  36 my $CHAIN_NAT_SOURCE      = "NAT_SOURCE";
  37 my $CHAIN_NAT_DESTINATION = "NAT_DESTINATION";
  38
  39 my %fwdfwsettings=();
  40 my %defaultNetworks=();
  41 my %configfwdfw=();
  42 my %color=();
  43 my %icmptypes=();
  44 my %ovpnSettings=();
  45 my %customgrp=();
  46 our %sourcehash=();
  47 our %targethash=();
  48 my @timeframe=();
  49 my %configinputfw=();
  50 my %configoutgoingfw=();
  51 my %confignatfw=();
  52 my %aliases=();
  53 my @DPROT=();
  54 my @p2ps=();
  55
  56 my $configfwdfw         = "${General::swroot}/firewall/config";
  57 my $configinput     = "${General::swroot}/firewall/input";
  58 my $configoutgoing  = "${General::swroot}/firewall/outgoing";
  59 my $p2pfile                     = "${General::swroot}/firewall/p2protocols";
  60 my $configgrp           = "${General::swroot}/fwhosts/customgroups";
  61 my $netsettings         = "${General::swroot}/ethernet/settings";
  62 my $errormessage        = '';
  63 my $orange                      = '';
  64 my $green                       = '';
  65 my $blue                        = '';
  66 my ($TYPE,$PROT,$SPROT,$DPROT,$SPORT,$DPORT,$SRC_TGT);
  67 my $conexists           = 'off';
  68 my $dnat                        ='';
  69 my $snat                        ='';
  70
  71 &General::readhash("${General::swroot}/firewall/settings", \%fwdfwsettings);
  72 &General::readhash("$netsettings", \%defaultNetworks);
  73 &General::readhasharray($configfwdfw, \%configfwdfw);
  74 &General::readhasharray($configinput, \%configinputfw);
  75 &General::readhasharray($configoutgoing, \%configoutgoingfw);
  76 &General::readhasharray($configgrp, \%customgrp);
  77 &General::get_aliases(\%aliases);
  78
  79 #check if we have an internetconnection
  80 open (CONN,"/var/ipfire/red/iface");
  81 my $con = <CONN>;
  82 close(CONN);
  83
  84 if (-f "/var/ipfire/red/active"){
  85         $conexists='on';
  86 }
  87
  88 open (CONN1,"/var/ipfire/red/local-ipaddress");
  89 my $redip = <CONN1>;
  90 close(CONN1);
  91
  92 # MAIN
  93 &main();
  94
  95 sub main {
  96         # Flush all chains.
  97         &flush();
  98
  99         # Reload firewall rules.
 100         &preparerules();
 101
 102         # Load P2P block rules.
 103         &p2pblock();
 104
 105         # Reload firewall policy.
 106         run("/usr/sbin/firewall-policy");
 107 }
 108
 109 sub run {
 110         # Executes or prints the given shell command.
 111         my $command = shift;
 112
 113         if ($DEBUG) {
 114                 print "$command\n";
 115         } else {
 116                 system "$command";
 117         }
 118 }
 119
 120 sub print_error {
 121         my $message = shift;
 122
 123         print STDERR "$message\n";
 124 }
 125
 126 sub flush {
 127         run("$IPTABLES -F FORWARDFW");
 128         run("$IPTABLES -F INPUTFW");
 129         run("$IPTABLES -F OUTGOINGFW");
 130         run("$IPTABLES -t nat -F NAT_DESTINATION");
 131         run("$IPTABLES -t nat -F NAT_SOURCE");
 132 }
 133
 134 sub preparerules {
 135         if (! -z  "${General::swroot}/firewall/config"){
 136                 &buildrules(\%configfwdfw);
 137         }
 138         if (! -z  "${General::swroot}/firewall/input"){
 139                 &buildrules(\%configinputfw);
 140         }
 141         if (! -z  "${General::swroot}/firewall/outgoing"){
 142                 &buildrules(\%configoutgoingfw);
 143         }
 144 }
 145
 146 sub buildrules {
 147         my $hash=shift;
 148         my $STAG;
 149         my $snatport;
 150         my $fireport;
 151         my $fwaccessdport;
 152         my $natchain;
 153         my $icmptype;
 154         foreach my $key (sort {$a <=> $b} keys %$hash){
 155                 next if (($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1') && $conexists eq 'off' );
 156
 157                 my $TIME = "";
 158                 my $TIMEFROM;
 159                 my $TIMETILL;
 160                 my $natip = "";
 161
 162                 # Check if logging should be enabled.
 163                 my $LOG = 0;
 164                 if ($$hash{$key}[17] eq 'ON') {
 165                         $LOG = 1;
 166                 }
 167
 168                 my $NAT = 0;
 169                 my $NAT_MODE;
 170
 171                 # Check if NAT is enabled and initialize variables, that we use for that.
 172                 if ($$hash{$key}[28] eq 'ON') {
 173                         $NAT = 1;
 174
 175                         # Destination NAT
 176                         if ($$hash{$key}[31] eq 'dnat') {
 177                                 $NAT_MODE = "DNAT";
 178
 179                                 if ($$hash{$key}[30] =~ /\|/) {
 180                                         $$hash{$key}[30]=~ tr/|/,/;
 181                                         $fireport='-m multiport --dport '.$$hash{$key}[30];
 182                                 } else {
 183                                         $fireport='--dport '.$$hash{$key}[30] if ($$hash{$key}[30]>0);
 184                                 }
 185
 186                         # Source NAT
 187                         } elsif ($$hash{$key}[31] eq 'snat') {
 188                                 $NAT_MODE = "SNAT";
 189
 190                         } else {
 191                                 print_error("Invalid NAT mode: $$hash{$key}[31]");
 192                                 next;
 193                         }
 194
 195                         $natip = &get_nat_ip($$hash{$key}[29], $NAT_MODE);
 196                 }
 197
 198                 $STAG='';
 199                 if($$hash{$key}[2] eq 'ON'){
 200                         #get source ip's
 201                         if ($$hash{$key}[3] eq 'cust_grp_src'){
 202                                 foreach my $grp (sort {$a <=> $b} keys %customgrp){
 203                                                 if($customgrp{$grp}[0] eq $$hash{$key}[4]){
 204                                                 &get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"src");
 205                                         }
 206                                 }
 207                         }else{
 208                                 &get_address($$hash{$key}[3],$$hash{$key}[4],"src");
 209                         }
 210                         #get target ip's
 211                         if ($$hash{$key}[5] eq 'cust_grp_tgt'){
 212                                 foreach my $grp (sort {$a <=> $b} keys %customgrp){
 213                                         if($customgrp{$grp}[0] eq $$hash{$key}[6]){
 214                                                 &get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"tgt");
 215                                         }
 216                                 }
 217                         }elsif($$hash{$key}[5] eq 'ipfire' ){
 218                                 if($$hash{$key}[6] eq 'GREEN'){
 219                                         $targethash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
 220                                 }
 221                                 if($$hash{$key}[6] eq 'BLUE'){
 222                                         $targethash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
 223                                 }
 224                                 if($$hash{$key}[6] eq 'ORANGE'){
 225                                         $targethash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
 226                                 }
 227                                 if($$hash{$key}[6] eq 'ALL'){
 228                                         $targethash{$key}[0]='0.0.0.0/0';
 229                                 }
 230                                 if($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1'){
 231                                         open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
 232                                         $targethash{$key}[0]= <FILE>;
 233                                         close(FILE);
 234                                 }else{
 235                                         foreach my $alias (sort keys %aliases){
 236                                                 if ($$hash{$key}[6] eq $alias){
 237                                                         $targethash{$key}[0]=$aliases{$alias}{'IPT'};
 238                                                 }
 239                                         }
 240                                 }
 241                         }else{
 242                                 &get_address($$hash{$key}[5],$$hash{$key}[6],"tgt");
 243                         }
 244                         ##get source prot and port
 245                         $SRC_TGT='SRC';
 246                         $SPORT = &get_port($hash,$key);
 247                         $SRC_TGT='';
 248
 249                         ##get target prot and port
 250                         $DPROT=&get_prot($hash,$key);
 251
 252                         if ($DPROT eq ''){$DPROT=' ';}
 253                         @DPROT=split(",",$DPROT);
 254
 255                         #get time if defined
 256                         if($$hash{$key}[18] eq 'ON'){
 257                                 my ($time1,$time2,$daylight);
 258                                 $daylight=$$hash{$key}[28];
 259                                 $time1=&get_time($$hash{$key}[26],$daylight);
 260                                 $time2=&get_time($$hash{$key}[27],$daylight);
 261                                 if($$hash{$key}[19] ne ''){push (@timeframe,"Mon");}
 262                                 if($$hash{$key}[20] ne ''){push (@timeframe,"Tue");}
 263                                 if($$hash{$key}[21] ne ''){push (@timeframe,"Wed");}
 264                                 if($$hash{$key}[22] ne ''){push (@timeframe,"Thu");}
 265                                 if($$hash{$key}[23] ne ''){push (@timeframe,"Fri");}
 266                                 if($$hash{$key}[24] ne ''){push (@timeframe,"Sat");}
 267                                 if($$hash{$key}[25] ne ''){push (@timeframe,"Sun");}
 268                                 $TIME=join(",",@timeframe);
 269
 270                                 $TIMEFROM="--timestart $time1 ";
 271                                 $TIMETILL="--timestop $time2 ";
 272                                 $TIME="-m time --weekdays $TIME $TIMEFROM $TIMETILL";
 273                         }
 274                         foreach my $DPROT (@DPROT){
 275                                 $DPORT = &get_port($hash,$key,$DPROT);
 276                                 $PROT=$DPROT;
 277                                 $PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
 278                                 if ($DPROT ne 'TCP' && $DPROT ne'UDP' && $DPROT ne 'ICMP' ){
 279                                         $DPORT='';
 280                                 }
 281                                 foreach my $a (sort keys %sourcehash){
 282                                         foreach my $b (sort keys %targethash){
 283                                                 if(! $sourcehash{$a}[0] || ! $targethash{$b}[0] || ($natip eq '-d ' && $NAT) || (!$natip && $NAT)){
 284                                                         #Skip rules when no RED IP is set (DHCP,DSL)
 285                                                         next;
 286                                                 }
 287                                                 next if ($targethash{$b}[0] eq 'none');
 288                                                 $STAG='';
 289                                                 if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
 290                                                         if($DPROT ne ''){
 291                                                                 if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
 292                                                                 #Process ICMP RULE
 293                                                                 if(substr($DPORT, 2, 4) eq 'icmp'){
 294                                                                         my @icmprule= split(",",substr($DPORT, 12,));
 295                                                                         foreach (@icmprule){
 296                                                                                 $icmptype="--icmp-type ";
 297                                                                                 if ($_ eq "BLANK") {
 298                                                                                                 $icmptype="";
 299                                                                                                 $_="";
 300                                                                                 }
 301                                                                                 if ($LOG) {
 302                                                                                         run("$IPTABLES -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG");
 303                                                                                 }
 304                                                                                 run("$IPTABLES -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]");
 305                                                                         }
 306                                                                 #PROCESS DNAT RULE (Portforward)
 307                                                                 } elsif ($NAT && $NAT_MODE eq "DNAT") {
 308                                                                         if ($LOG) {
 309                                                                                 run("$IPTABLES -t nat -A $CHAIN_NAT_DESTINATION $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT'");
 310                                                                         }
 311                                                                         my ($ip,$sub) =split("/",$targethash{$b}[0]);
 312                                                                         #Process NAT with servicegroup used
 313                                                                         if ($$hash{$key}[14] eq 'cust_srvgrp') {
 314                                                                                 run("$IPTABLES -t nat -A $CHAIN_NAT_DESTINATION $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j DNAT --to-destination $ip $DPORT");
 315                                                                                 $fwaccessdport=$DPORT;
 316                                                                         } else {
 317                                                                                 run("$IPTABLES -t nat -A $CHAIN_NAT_DESTINATION $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j DNAT --to-destination $ip$DPORT");
 318                                                                                 $DPORT =~ s/\-/:/g;
 319                                                                                 if ($DPORT){
 320                                                                                         $fwaccessdport="--dport ".substr($DPORT,1,);
 321                                                                                 }elsif(! $DPORT && $$hash{$key}[30] ne ''){
 322                                                                                         if ($$hash{$key}[30]=~m/|/i){
 323                                                                                                 $$hash{$key}[30] =~ s/\|/,/g;
 324                                                                                                 $fwaccessdport="-m multiport --dport $$hash{$key}[30]";
 325                                                                                         }else{
 326                                                                                                 $fwaccessdport="--dport $$hash{$key}[30]";
 327                                                                                         }
 328                                                                                 }
 329                                                                         }
 330                                                                         run("$IPTABLES -A FORWARDFW $PROT $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]");
 331                                                                         next;
 332                                                                 #PROCESS SNAT RULE
 333                                                                 } elsif ($NAT && $NAT_MODE eq "SNAT") {
 334                                                                         if ($LOG) {
 335                                                                                 run("$IPTABLES -t nat -A $CHAIN_NAT_SOURCE $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT'");
 336                                                                         }
 337                                                                         run("$IPTABLES -t nat -A $CHAIN_NAT_SOURCE $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j SNAT --to-source $natip");
 338                                                                 }
 339                                                                 #PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
 340                                                                 if ($PROT ne '-p ICMP'){
 341                                                                         if ($LOG && !$NAT) {
 342                                                                                 run("$IPTABLES -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG");
 343                                                                         }
 344                                                                         run("$IPTABLES -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]");
 345                                                                 }
 346                                                                 #PROCESS Prot ICMP and type = All ICMP-Types
 347                                                                 if ($PROT eq '-p ICMP' && $$hash{$key}[9] eq 'All ICMP-Types'){
 348                                                                         if ($LOG && !$NAT) {
 349                                                                                 run("$IPTABLES -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG");
 350                                                                         }
 351                                                                         run("$IPTABLES -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]");
 352                                                                 }
 353                                                         }
 354                                                 }
 355                                         }
 356                                 }
 357                         }
 358                 }
 359                 %sourcehash=();
 360                 %targethash=();
 361                 undef $fireport;
 362         }
 363 }
 364
 365 sub get_nat_ip {
 366         my $val=shift;
 367         my $type=shift;
 368         my $result;
 369         if($val eq 'RED' || $val eq 'GREEN' || $val eq 'ORANGE' || $val eq 'BLUE'){
 370                 $result=$defaultNetworks{$val.'_ADDRESS'};
 371         }elsif($val eq 'ALL'){
 372                 $result='-i '.$con;
 373         }elsif($val eq 'Default IP' && $type eq "DNAT"){
 374                 $result='-d '.$redip;
 375         }elsif($val eq 'Default IP' && $type eq "SNAT"){
 376                 $result=$redip;
 377         }else{
 378                 foreach my $al (sort keys %aliases){
 379                         if($val eq $al && $type eq "DNAT"){
 380                                 $result='-d '.$aliases{$al}{'IPT'};
 381                         }elsif($val eq $al && $type eq "SNAT"){
 382                                 $result=$aliases{$al}{'IPT'};
 383                         }
 384                 }
 385         }
 386         return $result;
 387 }
 388
 389 sub get_time {
 390         my $val=shift;
 391         my $val1=shift;
 392         my $time;
 393         my $minutes;
 394         my $ruletime;
 395         $minutes = &utcmin($val);
 396         $ruletime = $minutes + &time_get_utc($val);
 397         if ($ruletime < 0){$ruletime +=1440;}
 398         if ($ruletime > 1440){$ruletime -=1440;}
 399         $time=sprintf "%02d:%02d", $ruletime / 60, $ruletime % 60;
 400         return $time;
 401 }
 402
 403 sub time_get_utc {
 404         # Calculates the UTCtime from a given time
 405         my $val=shift;
 406         my @localtime=localtime(time);
 407         my @gmtime=gmtime(time);
 408         my $diff = ($gmtime[2]*60+$gmtime[1]%60)-($localtime[2]*60+$localtime[1]%60);
 409         return $diff;
 410 }
 411
 412 sub utcmin {
 413         my $ruletime=shift;
 414         my ($hrs,$min) = split(":",$ruletime);
 415         my $newtime = $hrs*60+$min;
 416         return $newtime;
 417 }
 418
 419 sub p2pblock {
 420         my $P2PSTRING = "";
 421         my $DO;
 422         open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
 423         @p2ps = <FILE>;
 424         close FILE;
 425         my $CMD = "-m ipp2p";
 426         foreach my $p2pentry (sort @p2ps) {
 427                 my @p2pline = split( /\;/, $p2pentry );
 428                 if ( $fwdfwsettings{'POLICY'} eq 'MODE1' ) {
 429                         $DO = "ACCEPT";
 430                         if ("$p2pline[2]" eq "on") {
 431                                 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
 432                         }
 433                 }else {
 434                         $DO = "RETURN";
 435                         if ("$p2pline[2]" eq "off") {
 436                                 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
 437                         }
 438                 }
 439         }
 440
 441         if($P2PSTRING) {
 442                 run("$IPTABLES -A FORWARDFW $CMD $P2PSTRING -j $DO");
 443         }
 444 }
 445
 446 sub get_address {
 447         my $base=shift; #source of checking ($configfwdfw{$key}[x] or groupkey
 448         my $base2=shift;
 449         my $type=shift; #src or tgt
 450         my $hash;
 451         if ($type eq 'src'){
 452                 $hash=\%sourcehash;
 453         }else{
 454                 $hash=\%targethash;
 455         }
 456         my $key = &General::findhasharraykey($hash);
 457         if($base eq 'src_addr' || $base eq 'tgt_addr' ){
 458                 if (&General::validmac($base2)){
 459                         $$hash{$key}[0] = "-m mac --mac-source $base2";
 460                 }else{
 461                         $$hash{$key}[0] = $base2;
 462                 }
 463         }elsif($base eq 'std_net_src' || $base eq 'std_net_tgt' || $base eq 'Standard Network'){
 464                 $$hash{$key}[0]=&fwlib::get_std_net_ip($base2,$con);
 465         }elsif($base eq 'cust_net_src' || $base eq 'cust_net_tgt' || $base eq 'Custom Network'){
 466                 $$hash{$key}[0]=&fwlib::get_net_ip($base2);
 467         }elsif($base eq 'cust_host_src' || $base eq 'cust_host_tgt' || $base eq 'Custom Host'){
 468                 $$hash{$key}[0]=&fwlib::get_host_ip($base2,$type);
 469         }elsif($base eq 'ovpn_net_src' || $base eq 'ovpn_net_tgt' || $base eq 'OpenVPN static network'){
 470                 $$hash{$key}[0]=&fwlib::get_ovpn_net_ip($base2,1);
 471         }elsif($base eq 'ovpn_host_src' ||$base eq 'ovpn_host_tgt' || $base eq 'OpenVPN static host'){
 472                 $$hash{$key}[0]=&fwlib::get_ovpn_host_ip($base2,33);
 473         }elsif($base eq 'ovpn_n2n_src' ||$base eq 'ovpn_n2n_tgt' || $base eq 'OpenVPN N-2-N'){
 474                 $$hash{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,11);
 475         }elsif($base eq 'ipsec_net_src' || $base eq 'ipsec_net_tgt' || $base eq 'IpSec Network'){
 476                 $$hash{$key}[0]=&fwlib::get_ipsec_net_ip($base2,11);
 477         }elsif($base eq 'ipfire_src' ){
 478                 if($base2 eq 'GREEN'){
 479                         $$hash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
 480                 }
 481                 if($base2 eq 'BLUE'){
 482                         $$hash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
 483                 }
 484                 if($base2 eq 'ORANGE'){
 485                         $$hash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
 486                 }
 487                 if($base2 eq 'ALL'){
 488                         $$hash{$key}[0]='0.0.0.0/0';
 489                 }
 490                 if($base2 eq 'RED' || $base2 eq 'RED1'){
 491                         open(FILE, "/var/ipfire/red/local-ipaddress");
 492                         $$hash{$key}[0]= <FILE>;
 493                         close(FILE);
 494                 }else{
 495                         foreach my $alias (sort keys %aliases){
 496                                 if ($base2 eq $alias){
 497                                         $$hash{$key}[0]=$aliases{$alias}{'IPT'};
 498                                 }
 499                         }
 500                 }
 501         }
 502 }
 503
 504 sub get_prot {
 505         my $hash=shift;
 506         my $key=shift;
 507         #check AH,GRE,ESP or ICMP
 508         if ($$hash{$key}[7] ne 'ON' && $$hash{$key}[11] ne 'ON'){
 509                 return "$$hash{$key}[8]";
 510         }
 511         if ($$hash{$key}[7] eq 'ON' || $$hash{$key}[11] eq 'ON'){
 512                 #check if servicegroup or service
 513                 if($$hash{$key}[14] eq 'cust_srv'){
 514                         return &fwlib::get_srv_prot($$hash{$key}[15]);
 515                 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
 516                         return &fwlib::get_srvgrp_prot($$hash{$key}[15]);
 517                 }elsif (($$hash{$key}[10] ne '' || $$hash{$key}[15] ne '') && $$hash{$key}[8] eq ''){ #when ports are used and prot set to "all"
 518                         return "TCP,UDP";
 519                 }elsif (($$hash{$key}[10] ne '' || $$hash{$key}[15] ne '') && ($$hash{$key}[8] eq 'TCP' || $$hash{$key}[8] eq 'UDP')){ #when ports are used and prot set to "tcp" or "udp"
 520                         return "$$hash{$key}[8]";
 521                 }elsif (($$hash{$key}[10] eq '' && $$hash{$key}[15] eq '') && $$hash{$key}[8] ne 'ICMP'){ #when ports are NOT used and prot NOT set to "ICMP"
 522                         return "$$hash{$key}[8]";
 523                 }else{
 524                         return "$$hash{$key}[8]";
 525                 }
 526         }
 527         #DNAT
 528         if ($SRC_TGT eq '' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[11] eq '' && $$hash{$key}[12] ne ''){
 529                 return "$$hash{$key}[8]";
 530         }
 531 }
 532
 533 sub get_port {
 534         my $hash=shift;
 535         my $key=shift;
 536         my $prot=shift;
 537         #Get manual defined Ports from SOURCE
 538         if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
 539                 if ($$hash{$key}[10] ne ''){
 540                         $$hash{$key}[10] =~ s/\|/,/g;
 541                         if(index($$hash{$key}[10],",") > 0){
 542                                 return "-m multiport --sport $$hash{$key}[10] ";
 543                         }else{
 544                                 if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ||($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat')  ){
 545                                         return "--sport $$hash{$key}[10] ";
 546                                 }else{
 547                                         return ":$$hash{$key}[10]";
 548                                 }
 549                         }
 550                 }
 551                 #Get manual ports from TARGET
 552         }elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
 553                 if($$hash{$key}[14] eq 'TGT_PORT'){
 554                         if ($$hash{$key}[15] ne ''){
 555                                 $$hash{$key}[15] =~ s/\|/,/g;
 556                                 if(index($$hash{$key}[15],",") > 0){
 557                                         return "-m multiport --dport $$hash{$key}[15] ";
 558                                 }else{
 559                                         if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ){
 560                                                 return "--dport $$hash{$key}[15] ";
 561                                          }else{
 562                                                  $$hash{$key}[15] =~ s/\:/-/g;
 563                                                  return ":$$hash{$key}[15]";
 564                                          }
 565                                 }
 566                         }
 567                 #Get ports defined in custom Service (firewall-groups)
 568                 }elsif($$hash{$key}[14] eq 'cust_srv'){
 569                         if ($prot ne 'ICMP'){
 570                                 if($$hash{$key}[31] eq 'dnat' && $$hash{$key}[28] eq 'ON'){
 571                                         my $ports =&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
 572                                         $ports =~ s/\:/-/g;
 573                                         return ":".$ports
 574                                 }else{
 575                                         return "--dport ".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
 576                                 }
 577                         }elsif($prot eq 'ICMP' && $$hash{$key}[11] eq 'ON'){        #When PROT is ICMP and "use targetport is checked, this is an icmp-service
 578                                 return "--icmp-type ".&fwlib::get_srv_port($$hash{$key}[15],3,$prot);
 579                         }
 580                 #Get ports from services which are used in custom servicegroups (firewall-groups)
 581                 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
 582                         if      ($prot ne 'ICMP'){
 583                                 return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
 584                         }
 585                         elsif($prot eq 'ICMP'){
 586                                 return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
 587                         }
 588                 }
 589         }
 590         #CHECK ICMP
 591         if ($$hash{$key}[7] ne 'ON' && $$hash{$key}[11] ne 'ON' && $SRC_TGT eq ''){
 592                 if($$hash{$key}[9] ne '' && $$hash{$key}[9] ne 'All ICMP-Types'){
 593                         return "--icmp-type $$hash{$key}[9] ";
 594                 }elsif($$hash{$key}[9] eq 'All ICMP-Types'){
 595                         return;
 596                 }
 597         }
 598 }