config/firewall/convert-dmz

   1 #!/usr/bin/perl
   2
   3 ###############################################################################
   4 #                                                                             #
   5 # IPFire.org - A linux based firewall                                         #
   6 # Copyright (C) 2013 Alexander Marx <amarx@ipfire.org>                        #
   7 #                                                                             #
   8 # This program is free software: you can redistribute it and/or modify        #
   9 # it under the terms of the GNU General Public License as published by        #
  10 # the Free Software Foundation, either version 3 of the License, or           #
  11 # (at your option) any later version.                                         #
  12 #                                                                             #
  13 # This program is distributed in the hope that it will be useful,             #
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  16 # GNU General Public License for more details.                                #
  17 #                                                                             #
  18 # You should have received a copy of the GNU General Public License           #
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  20 #                                                                             #
  21 ###############################################################################
  22 #                                                                             #
  23 # This script converts old dmz holes rules from old firewall                  #
  24 # to the new one. This is a 2-step process.                                   #
  25 # STEP1: read old config and normalize settings                               #
  26 # STEP2: check valid ip and save valid rules to new firewall                  #
  27 #                                                                             #
  28 ###############################################################################
  29 my @current=();
  30 my @alias=();
  31 my %configdmz=();
  32 my %ifaces=();
  33 my %configfwdfw=();
  34 require '/var/ipfire/general-functions.pl';
  35 my $dmzconfig     = "${General::swroot}/dmzholes/config";
  36 my $fwdfwconfig   = "${General::swroot}/firewall/config";
  37 my $ifacesettings = "${General::swroot}/ethernet/settings";
  38 my $field0      = 'ACCEPT';
  39 my $field1      = 'FORWARDFW';
  40 my $field2      = ''; #ON or emtpy
  41 my $field3      = ''; #std_net_src or src_addr
  42 my $field4      = ''; #ALL or IP-Address with /32
  43 my $field5      = ''; #std_net_tgt or tgt_addr
  44 my $field6      = ''; #IP or network name
  45 my $field11     = 'ON'; #use target port
  46 my $field12     = ''; #TCP or UDP
  47 my $field13     = 'All ICMP-Types';
  48 my $field14     = 'TGT_PORT';
  49 my $field15     = ''; #Port Number
  50 my $field16     = ''; #remark
  51 my $field26     = '00:00';
  52 my $field27     = '00:00';
  53 my $field28 = '';
  54 my $field29 = 'ALL';
  55 my $field30 = '';
  56 my $field31 = 'dnat';
  57
  58
  59 open(FILE, $dmzconfig) or die 'Unable to open config file.';
  60 my @current = <FILE>;
  61 close(FILE);
  62 #open LOGFILE
  63 open (LOG, ">/var/log/converters/dmz-convert.log") or die $!;
  64 &General::readhash($ifacesettings, \%ifaces);
  65 &General::readhasharray($fwdfwconfig,\%configfwdfw);
  66 &process_rules;
  67 sub process_rules{
  68         foreach my $line (@current){
  69                 my $now=localtime;
  70                 #get values from old configfile
  71                 my ($a,$b,$c,$d,$e,$f,$g,$h) = split (",",$line);
  72                 $h =~ s/\s*\n//gi;
  73                 print LOG "$now Processing A: $a   B: $b   C: $c   D: $d   E: $e   F: $f   G: $g   H: $h\n";
  74                 #Now convert values and check ip addresses
  75                 $a=uc($a);
  76                 $e=uc($e);
  77                 $field2=$e if($e eq 'ON');
  78                 #SOURCE IP-check
  79                 $b=&check_ip($b);
  80                 if (&General::validipandmask($b)){
  81                         #When ip valid, check if we have a network
  82                         my ($ip,$subnet) = split ("/",$b);
  83                         if ($f eq 'orange' && $ip eq $ifaces{'ORANGE_NETADDRESS'}){
  84                                 $field3='std_net_src';
  85                                 $field4='ORANGE';
  86                         }elsif($f eq 'blue' && $ip eq $ifaces{'BLUE_NETADDRESS'}){
  87                                 $field3='std_net_src';
  88                                 $field4='BLUE';
  89                         }elsif($f eq 'orange' && &General::IpInSubnet($ip,$ifaces{'ORANGE_NETADDRESS'},$ifaces{'ORANGE_NETMASK'})){
  90                                 $field3='src_addr';
  91                                 $field4=$b;
  92                         }elsif($f eq 'blue' && &General::IpInSubnet($ip,$ifaces{'BLUE_NETADDRESS'},$ifaces{'BLUE_NETMASK'})){
  93                                 $field3='src_addr';
  94                                 $field4=$b;
  95                         }else{
  96                                 print LOG "$now ->NOT Converted, source ip $b not part of source network $f \n\n";
  97                                 next;
  98                         }
  99                 }else{
 100                         print LOG "$now -> SOURCE IP INVALID. \n\n";
 101                         next;
 102                 }
 103                 #TARGET IP-check
 104                 $c=&check_ip($c);
 105                 if (&General::validipandmask($c)){
 106                         my $now=localtime;
 107                         #When ip valid, check if we have a network
 108                         my ($ip,$subnet) = split ("/",$c);
 109                         if ($g eq 'green' && $ip eq $ifaces{'GREEN_NETADDRESS'}){
 110                                 $field5='std_net_tgt';
 111                                 $field6='GREEN';
 112                         }elsif($g eq 'blue' && $ip eq $ifaces{'BLUE_NETADDRESS'}){
 113                                 $field5='std_net_tgt';
 114                                 $field6='BLUE';
 115                         }elsif($g eq 'green' && &General::IpInSubnet($ip,$ifaces{'GREEN_NETADDRESS'},$ifaces{'GREEN_NETMASK'})){
 116                                 $field5='tgt_addr';
 117                                 $field6=$c;
 118                         }elsif($g eq 'blue' && &General::IpInSubnet($ip,$ifaces{'BLUE_NETADDRESS'},$ifaces{'BLUE_NETMASK'})){
 119                                 $field5='tgt_addr';
 120                                 $field6=$c;
 121                         }else{
 122                                 print LOG "$now ->NOT Converted, target ip $c not part of target network $g \n\n";
 123                                 next;
 124                         }
 125                 }else{
 126                         print LOG "$now -> TARGET IP INVALID. \n\n";
 127                         next;
 128                 }
 129                 $field12=$a;
 130                 #convert portrange
 131                 $d =~ tr/-/:/;
 132                 $field15=$d;
 133                 $field16=$h;
 134                 my $key = &General::findhasharraykey (\%configfwdfw);
 135                 foreach my $i (0 .. 27) { $configfwdfw{$key}[$i] = "";}
 136                 $configfwdfw{$key}[0] = $field0;
 137                 $configfwdfw{$key}[1] = $field1;
 138                 $configfwdfw{$key}[2] = $field2;
 139                 $configfwdfw{$key}[3] = $field3;
 140                 $configfwdfw{$key}[4] = $field4;
 141                 $configfwdfw{$key}[5] = $field5;
 142                 $configfwdfw{$key}[6] = $field6;
 143                 $configfwdfw{$key}[7] = '';
 144                 $configfwdfw{$key}[8] = '';
 145                 $configfwdfw{$key}[9] = '';
 146                 $configfwdfw{$key}[10] = '';
 147                 $configfwdfw{$key}[11] = $field11;
 148                 $configfwdfw{$key}[12] = $field12;
 149                 $configfwdfw{$key}[13] = $field13;
 150                 $configfwdfw{$key}[14] = $field14;
 151                 $configfwdfw{$key}[15] = $field15;
 152                 $configfwdfw{$key}[16] = $field16;
 153                 $configfwdfw{$key}[17] = '';
 154                 $configfwdfw{$key}[18] = '';
 155                 $configfwdfw{$key}[19] = '';
 156                 $configfwdfw{$key}[20] = '';
 157                 $configfwdfw{$key}[21] = '';
 158                 $configfwdfw{$key}[22] = '';
 159                 $configfwdfw{$key}[23] = '';
 160                 $configfwdfw{$key}[24] = '';
 161                 $configfwdfw{$key}[25] = '';
 162                 $configfwdfw{$key}[26] = $field26;
 163                 $configfwdfw{$key}[27] = $field27;
 164                 $configfwdfw{$key}[28] = $field28;
 165                 $configfwdfw{$key}[29] = $field29;
 166                 $configfwdfw{$key}[30] = $field30;
 167                 $configfwdfw{$key}[31] = $field31;
 168                 print LOG "$Now -> Converted to $field0,$field1,$field2,$field3,$field4,$field5,$field6,,,,,$field11,$field12,$field13,$field14,$field15,$field16,,,,,,,,,,$field26,$field27\n";
 169         }
 170         &General::writehasharray($fwdfwconfig,\%configfwdfw);
 171 close (LOG);
 172 }
 173
 174 sub check_ip
 175 {
 176         my $adr=shift;
 177         my $a;
 178         #ip with subnet in decimal
 179         if($adr =~ m/^(\d\d?\d?).(\d\d?\d?).(\d\d?\d?).(\d\d?\d?)\/(\d{1,2})$/){
 180                 $adr=int($1).".".int($2).".".int($3).".".int($4);
 181                 my $b = &General::iporsubtodec($5);
 182                 $a=$adr."/".$b;
 183         }elsif($adr =~ /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/){
 184                 $adr=int($1).".".int($2).".".int($3).".".int($4);
 185                 if(&General::validip($adr)){
 186                         $a=$adr."/32";
 187                 }
 188         }
 189         if(&General::validipandmask($adr)){
 190                 $a=&General::iporsubtodec($adr);
 191         }
 192         return $a;
 193 }