config/forwardfw/convert-dmz

   1 #!/usr/bin/perl
   2
   3 ########################################################################
   4 # Script:       convert-dmz
   5 # Date:         03.04.2013
   6 # Author:       Alexander Marx (amarx@ipfire.org)
   7 ########################################################################
   8 #
   9 # This script converts old dmz holes rules from old Firewall
  10 # to the new one. This is a 2-step process.
  11 # STEP1: read old config and normalize settings
  12 # STEP2: check valid ip and save valid rules to new firewall
  13 #
  14 ########################################################################
  15 my @current=();
  16 my @alias=();
  17 my %configdmz=();
  18 my %ifaces=();
  19 my %configfwdfw=();
  20 require '/var/ipfire/general-functions.pl';
  21 my $dmzconfig     = "${General::swroot}/dmzholes/config";
  22 my $fwdfwconfig   = "${General::swroot}/forward/config";
  23 my $ifacesettings = "${General::swroot}/ethernet/settings";
  24 my $field0      = 'ACCEPT';
  25 my $field1      = 'FORWARDFW';
  26 my $field2      = ''; #ON or emtpy
  27 my $field3      = ''; #std_net_src or src_addr
  28 my $field4      = ''; #ALL or IP-Address with /32
  29 my $field5      = ''; #std_net_tgt or tgt_addr
  30 my $field6      = ''; #IP or network name
  31 my $field11     = 'ON'; #use target port
  32 my $field12     = ''; #TCP or UDP
  33 my $field13     = 'All ICMP-Types';
  34 my $field14     = 'TGT_PORT';
  35 my $field15     = ''; #Port Number
  36 my $field16     = ''; #remark
  37 my $field26     = '00:00';
  38 my $field27     = '00:00';
  39 my $field28 = '';
  40 my $field29 = 'ALL';
  41 my $field30 = '';
  42 my $field31 = 'dnat';
  43
  44
  45 open(FILE, $dmzconfig) or die 'Unable to open config file.';
  46 my @current = <FILE>;
  47 close(FILE);
  48 #open LOGFILE
  49 open (LOG, ">/var/log/converters/dmz-convert.log") or die $!;
  50 &General::readhash($ifacesettings, \%ifaces);
  51 &General::readhasharray($fwdfwconfig,\%configfwdfw);
  52 &process_rules;
  53 sub process_rules{
  54         foreach my $line (@current){
  55                 my $now=localtime;
  56                 #get values from old configfile
  57                 my ($a,$b,$c,$d,$e,$f,$g,$h) = split (",",$line);
  58                 $h =~ s/\s*\n//gi;
  59                 print LOG "$now Processing A: $a   B: $b   C: $c   D: $d   E: $e   F: $f   G: $g   H: $h\n";
  60                 #Now convert values and check ip addresses
  61                 $a=uc($a);
  62                 $e=uc($e);
  63                 $field2=$e if($e eq 'ON');
  64                 #SOURCE IP-check
  65                 $b=&check_ip($b);
  66                 if (&General::validipandmask($b)){
  67                         #When ip valid, check if we have a network
  68                         my ($ip,$subnet) = split ("/",$b);
  69                         if ($f eq 'orange' && $ip eq $ifaces{'ORANGE_NETADDRESS'}){
  70                                 $field3='std_net_src';
  71                                 $field4='ORANGE';
  72                         }elsif($f eq 'blue' && $ip eq $ifaces{'BLUE_NETADDRESS'}){
  73                                 $field3='std_net_src';
  74                                 $field4='BLUE';
  75                         }elsif($f eq 'orange' && &General::IpInSubnet($ip,$ifaces{'ORANGE_NETADDRESS'},$ifaces{'ORANGE_NETMASK'})){
  76                                 $field3='src_addr';
  77                                 $field4=$b;
  78                         }elsif($f eq 'blue' && &General::IpInSubnet($ip,$ifaces{'BLUE_NETADDRESS'},$ifaces{'BLUE_NETMASK'})){
  79                                 $field3='src_addr';
  80                                 $field4=$b;
  81                         }else{
  82                                 print LOG "$now ->NOT Converted, source ip $b not part of source network $f \n\n";
  83                                 next;
  84                         }
  85                 }else{
  86                         print LOG "$now -> SOURCE IP INVALID. \n\n";
  87                         next;
  88                 }
  89                 #TARGET IP-check
  90                 $c=&check_ip($c);
  91                 if (&General::validipandmask($c)){
  92                         my $now=localtime;
  93                         #When ip valid, check if we have a network
  94                         my ($ip,$subnet) = split ("/",$c);
  95                         if ($g eq 'green' && $ip eq $ifaces{'GREEN_NETADDRESS'}){
  96                                 $field5='std_net_tgt';
  97                                 $field6='GREEN';
  98                         }elsif($g eq 'blue' && $ip eq $ifaces{'BLUE_NETADDRESS'}){
  99                                 $field5='std_net_tgt';
 100                                 $field6='BLUE';
 101                         }elsif($g eq 'green' && &General::IpInSubnet($ip,$ifaces{'GREEN_NETADDRESS'},$ifaces{'GREEN_NETMASK'})){
 102                                 $field5='tgt_addr';
 103                                 $field6=$c;
 104                         }elsif($g eq 'blue' && &General::IpInSubnet($ip,$ifaces{'BLUE_NETADDRESS'},$ifaces{'BLUE_NETMASK'})){
 105                                 $field5='tgt_addr';
 106                                 $field6=$c;
 107                         }else{
 108                                 print LOG "$now ->NOT Converted, target ip $c not part of target network $g \n\n";
 109                                 next;
 110                         }
 111                 }else{
 112                         print LOG "$now -> TARGET IP INVALID. \n\n";
 113                         next;
 114                 }
 115                 $field12=$a;
 116                 #convert portrange
 117                 $d =~ tr/-/:/;
 118                 $field15=$d;
 119                 $field16=$h;
 120                 my $key = &General::findhasharraykey (\%configfwdfw);
 121                 foreach my $i (0 .. 27) { $configfwdfw{$key}[$i] = "";}
 122                 $configfwdfw{$key}[0] = $field0;
 123                 $configfwdfw{$key}[1] = $field1;
 124                 $configfwdfw{$key}[2] = $field2;
 125                 $configfwdfw{$key}[3] = $field3;
 126                 $configfwdfw{$key}[4] = $field4;
 127                 $configfwdfw{$key}[5] = $field5;
 128                 $configfwdfw{$key}[6] = $field6;
 129                 $configfwdfw{$key}[7] = '';
 130                 $configfwdfw{$key}[8] = '';
 131                 $configfwdfw{$key}[9] = '';
 132                 $configfwdfw{$key}[10] = '';
 133                 $configfwdfw{$key}[11] = $field11;
 134                 $configfwdfw{$key}[12] = $field12;
 135                 $configfwdfw{$key}[13] = $field13;
 136                 $configfwdfw{$key}[14] = $field14;
 137                 $configfwdfw{$key}[15] = $field15;
 138                 $configfwdfw{$key}[16] = $field16;
 139                 $configfwdfw{$key}[17] = '';
 140                 $configfwdfw{$key}[18] = '';
 141                 $configfwdfw{$key}[19] = '';
 142                 $configfwdfw{$key}[20] = '';
 143                 $configfwdfw{$key}[21] = '';
 144                 $configfwdfw{$key}[22] = '';
 145                 $configfwdfw{$key}[23] = '';
 146                 $configfwdfw{$key}[24] = '';
 147                 $configfwdfw{$key}[25] = '';
 148                 $configfwdfw{$key}[26] = $field26;
 149                 $configfwdfw{$key}[27] = $field27;
 150                 $configfwdfw{$key}[28] = $field28;
 151                 $configfwdfw{$key}[29] = $field29;
 152                 $configfwdfw{$key}[30] = $field30;
 153                 $configfwdfw{$key}[31] = $field31;
 154                 print LOG "$Now -> Converted to $field0,$field1,$field2,$field3,$field4,$field5,$field6,,,,,$field11,$field12,$field13,$field14,$field15,$field16,,,,,,,,,,$field26,$field27\n";
 155         }
 156         &General::writehasharray($fwdfwconfig,\%configfwdfw);
 157 close (LOG);
 158 }
 159
 160 sub check_ip
 161 {
 162         my $adr=shift;
 163         my $a;
 164         #ip with subnet in decimal
 165         if($adr =~ m/^(\d\d?\d?).(\d\d?\d?).(\d\d?\d?).(\d\d?\d?)\/(\d{1,2})$/){
 166                 $adr=int($1).".".int($2).".".int($3).".".int($4);
 167                 my $b = &General::iporsubtodec($5);
 168                 $a=$adr."/".$b;
 169         }elsif($adr =~ /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/){
 170                 $adr=int($1).".".int($2).".".int($3).".".int($4);
 171                 if(&General::validip($adr)){
 172                         $a=$adr."/32";
 173                 }
 174         }
 175         if(&General::validipandmask($adr)){
 176                 $a=&General::iporsubtodec($adr);
 177         }
 178         return $a;
 179 }