]> git.ipfire.org Git - people/teissler/ipfire-2.x.git/blobdiff - config/forwardfw/rules.pl
Forward FIrewall: Bugfix: When using predefined services in rulecreation, the rule...
[people/teissler/ipfire-2.x.git] / config / forwardfw / rules.pl
index 2547e474f7bf3ee4eb20adb697a0e6d290764fcd..9f23c54e0a5b0fc47472919b9d2d34726f5fdbea 100755 (executable)
@@ -44,7 +44,7 @@ our %targethash=();
 my @timeframe=();
 my %configinputfw=();
 my %configoutgoingfw=();
-my %configdmzfw=();
+my %confignatfw=();
 my %aliases=();
 my @DPROT=();
 my @p2ps=();
@@ -52,7 +52,6 @@ require '/var/ipfire/general-functions.pl';
 require "${General::swroot}/lang.pl";
 require "${General::swroot}/forward/bin/firewall-lib.pl";
 
-my $configdmz          = "${General::swroot}/forward/dmz";
 my $configfwdfw                = "${General::swroot}/forward/config";
 my $configinput            = "${General::swroot}/forward/input";
 my $configoutgoing  = "${General::swroot}/forward/outgoing";
@@ -66,10 +65,11 @@ my $blue;
 my ($TYPE,$PROT,$SPROT,$DPROT,$SPORT,$DPORT,$TIME,$TIMEFROM,$TIMETILL,$SRC_TGT);
 my $CHAIN="FORWARDFW";
 my $conexists='off';
-
+my $command = 'iptables -A';
+my $dnat='';
+my $snat='';
 &General::readhash("${General::swroot}/forward/settings", \%fwdfwsettings);
 &General::readhash("$netsettings", \%defaultNetworks);
-&General::readhasharray($configdmz, \%configdmzfw);
 &General::readhasharray($configfwdfw, \%configfwdfw);
 &General::readhasharray($configinput, \%configinputfw);
 &General::readhasharray($configoutgoing, \%configoutgoingfw);
@@ -83,7 +83,9 @@ close(CONN);
 if (-f "/var/ipfire/red/active"){
        $conexists='on';
 }
-
+open (CONN1,"/var/ipfire/red/local-ipaddress");
+my $redip = <CONN1>;
+close(CONN1);
 ################################
 #    DEBUG/TEST                #
 ################################
@@ -112,26 +114,10 @@ if($param eq 'flush'){
                        &p2pblock;
                        system ("/usr/sbin/firewall-policy"); 
                }elsif($fwdfwsettings{'POLICY'} eq 'MODE2'){
-                       $defaultNetworks{'GREEN_NETMASK'}=&General::iporsubtocidr($defaultNetworks{'GREEN_NETMASK'});
-                       $green="$defaultNetworks{'GREEN_ADDRESS'}/$defaultNetworks{'GREEN_NETMASK'}";
-                       if ($defaultNetworks{'BLUE_DEV'}){
-                               $defaultNetworks{'BLUE_NETMASK'}=&General::iporsubtocidr($defaultNetworks{'BLUE_NETMASK'});
-                               $blue="$defaultNetworks{'BLUE_ADDRESS'}/$defaultNetworks{'BLUE_NETMASK'}";
-                               #set default rules for BLUE
-                               system ("iptables -A $CHAIN -s $blue -d $green -j RETURN");
-                       }
-                       if ($defaultNetworks{'ORANGE_DEV'}){
-                               $defaultNetworks{'ORANGE_NETMASK'}=&General::iporsubtocidr($defaultNetworks{'ORANGE_NETMASK'});
-                               $orange="$defaultNetworks{'ORANGE_ADDRESS'}/$defaultNetworks{'ORANGE_NETMASK'}";
-                               #set default rules for DMZ
-                               system ("iptables -A $CHAIN -s $orange -d $green -j RETURN");
-                               if ($defaultNetworks{'BLUE_DEV'}){
-                                       system ("iptables -A $CHAIN -s $orange -d $blue -j RETURN");
-                               }
-                       }
                        &p2pblock;
-                       system ("iptables -A $CHAIN -m state --state NEW -j ACCEPT");
+                       system ("iptables -A $CHAIN -m conntrack --ctstate NEW -j ACCEPT");
                        system ("/usr/sbin/firewall-policy");
+                       system ("/etc/sysconfig/firewall.local reload");
                }
        }
 }
@@ -140,12 +126,11 @@ sub flush
        system ("iptables -F FORWARDFW");
        system ("iptables -F INPUTFW");
        system ("iptables -F OUTGOINGFW");
+       system ("iptables -t nat -F NAT_DESTINATION");
+       system ("iptables -t nat -F NAT_SOURCE");
 }                      
 sub preparerules
 {
-       if (! -z  "${General::swroot}/forward/dmz"){
-               &buildrules(\%configdmzfw);
-       }
        if (! -z  "${General::swroot}/forward/config"){
                &buildrules(\%configfwdfw);
        }
@@ -160,8 +145,29 @@ sub buildrules
 {
        my $hash=shift;
        my $STAG;
+       my $natip;
+       my $snatport;
+       my $fireport;
+       my $nat;
+       my $fwaccessdport;
+       my $natchain;
        foreach my $key (sort {$a <=> $b} keys %$hash){
-               next if ($$hash{$key}[6] eq 'RED' && $conexists eq 'off' );
+               next if (($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1') && $conexists eq 'off' );
+               if ($$hash{$key}[28] eq 'ON'){
+                       $command='iptables -t nat -A';
+                       $natip=&get_nat_ip($$hash{$key}[29],$$hash{$key}[31]);
+                       if($$hash{$key}[31] eq 'dnat'){
+                               $nat='DNAT';
+                               if ($$hash{$key}[30] =~ /\|/){
+                                       $$hash{$key}[30]=~ tr/|/,/;
+                                       $fireport='-m multiport --dport '.$$hash{$key}[30];
+                               }else{
+                                       $fireport='--dport '.$$hash{$key}[30] if ($$hash{$key}[30]>0);
+                               }
+                       }else{
+                               $nat='SNAT';
+                       }
+               }
                $STAG='';
                if($$hash{$key}[2] eq 'ON'){
                        #get source ip's
@@ -181,9 +187,21 @@ sub buildrules
                                                &get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"tgt");
                                        }
                                }
-                       }elsif($$hash{$key}[5] eq 'ipfire'){
-                               if($$hash{$key}[6] eq 'Default IP'){
-                                       open(FILE, "/var/ipfire/red/local-ipaddress") or die 'Unable to open config file.';
+                       }elsif($$hash{$key}[5] eq 'ipfire' ){
+                               if($$hash{$key}[6] eq 'GREEN'){
+                                       $targethash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
+                               }
+                               if($$hash{$key}[6] eq 'BLUE'){
+                                       $targethash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
+                               }
+                               if($$hash{$key}[6] eq 'ORANGE'){
+                                       $targethash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
+                               }
+                               if($$hash{$key}[6] eq 'ALL'){
+                                       $targethash{$key}[0]='0.0.0.0/0';
+                               }
+                               if($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1'){
+                                       open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
                                        $targethash{$key}[0]= <FILE>;
                                        close(FILE);
                                }else{
@@ -248,16 +266,38 @@ sub buildrules
                                                                                my @icmprule= split(",",substr($DPORT, 12,));
                                                                                foreach (@icmprule){
                                                                                        if ($$hash{$key}[17] eq 'ON'){
-                                                                                               print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j LOG\n";
+                                                                                               print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j LOG\n";
                                                                                        }
-                                                                                       print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]\n"; 
+                                                                                       print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]\n";
                                                                                }
-                                                                       }else{
+                                                                       }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
+                                                                               $natchain='NAT_DESTINATION';
                                                                                if ($$hash{$key}[17] eq 'ON'){
-                                                                                       print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
+                                                                                       print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
+                                                                               }
+                                                                               my ($ip,$sub) =split("/",$targethash{$b}[0]);
+                                                                               print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip$DPORT\n";
+                                                                               $DPORT =~ s/\-/:/g;
+                                                                               if ($DPORT){
+                                                                                       $fwaccessdport="--dport ".substr($DPORT,1,);
+                                                                               }elsif(! $DPORT && $$hash{$key}[30] ne ''){
+                                                                                       if ($$hash{$key}[30]=~m/|/i){
+                                                                                               $$hash{$key}[30] =~ s/\|/,/g;
+                                                                                               $fwaccessdport="-m multiport --dport $$hash{$key}[30]";
+                                                                                       }else{
+                                                                                               $fwaccessdport="--dport $$hash{$key}[30]";
+                                                                                       }
                                                                                }
-                                                                               print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n"; 
+                                                                               print "iptables -A FORWARDFW $PROT -i $con $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
+                                                                               next;
+                                                                       }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
+                                                                               $natchain='NAT_SOURCE';
+                                                                               print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to $natip\n";
+                                                                       }
+                                                                       if ($$hash{$key}[17] eq 'ON'){
+                                                                                       print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
                                                                        }
+                                                                       print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
                                                                }                               
                                                        }
                                                }
@@ -278,16 +318,38 @@ sub buildrules
                                                                                my @icmprule= split(",",substr($DPORT, 12,));
                                                                                foreach (@icmprule){
                                                                                        if ($$hash{$key}[17] eq 'ON'){
-                                                                                               system ("iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] -- icmp-type $_ $TIME -j LOG");
+                                                                                               system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] -- icmp-type $_ $TIME -j LOG");
                                                                                        }
-                                                                                       system ("iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]"); 
+                                                                                       system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]");
                                                                                }
-                                                                       }else{
+                                                                       }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
+                                                                               $natchain='NAT_DESTINATION';
                                                                                if ($$hash{$key}[17] eq 'ON'){
-                                                                                       system ("iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG");
+                                                                                       system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
                                                                                }
-                                                                               system ("iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]"); 
+                                                                               my ($ip,$sub) =split("/",$targethash{$b}[0]);
+                                                                               system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip$DPORT\n";
+                                                                               $DPORT =~ s/\-/:/g;
+                                                                               if ($DPORT){
+                                                                                       $fwaccessdport="--dport ".substr($DPORT,1,);
+                                                                               }elsif(! $DPORT && $$hash{$key}[30] ne ''){
+                                                                                       if ($$hash{$key}[30]=~m/|/i){
+                                                                                               $$hash{$key}[30] =~ s/\|/,/g;
+                                                                                               $fwaccessdport="-m multiport --dport $$hash{$key}[30]";
+                                                                                       }else{
+                                                                                               $fwaccessdport="--dport $$hash{$key}[30]";
+                                                                                       }
+                                                                               }
+                                                                               system "iptables -A FORWARDFW $PROT -i $con $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
+                                                                               next;
+                                                                       }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
+                                                                               $natchain='NAT_SOURCE';
+                                                                               system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to $natip\n";
+                                                                       }
+                                                                       if ($$hash{$key}[17] eq 'ON'){
+                                                                               system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
                                                                        }
+                                                                       system "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
                                                                }                               
                                                        }
                                                }
@@ -300,8 +362,33 @@ sub buildrules
                undef $TIME;
                undef $TIMEFROM;
                undef $TIMETILL;
+               undef $fireport;
        }
 }
+sub get_nat_ip
+{
+       my $val=shift;
+       my $type=shift;
+       my $result;
+       if($val eq 'RED' || $val eq 'GREEN' || $val eq 'ORANGE' || $val eq 'BLUE'){
+               $result=$defaultNetworks{$val.'_ADDRESS'};
+       }elsif($val eq 'ALL'){
+               $result='-i '.$con;
+       }elsif($val eq 'Default IP' && $type eq 'dnat'){
+               $result='-d '.$redip;
+       }elsif($val eq 'Default IP' && $type eq 'snat'){
+               $result=$redip;
+       }else{
+               foreach my $al (sort keys %aliases){
+                       if($val eq $al && $type eq 'dnat'){
+                               $result='-d '.$aliases{$al}{'IPT'};
+                       }elsif($val eq $al && $type eq 'snat'){
+                               $result=$aliases{$al}{'IPT'};
+                       }
+               }
+       }
+       return $result;
+}
 sub get_time
 {
        my $val=shift;
@@ -364,7 +451,6 @@ sub p2pblock
                }
        }
 }
-
 sub get_address
 {
        my $base=shift; #source of checking ($configfwdfw{$key}[x] or groupkey
@@ -394,9 +480,33 @@ sub get_address
        }elsif($base eq 'ovpn_host_src' ||$base eq 'ovpn_host_tgt' || $base eq 'OpenVPN static host'){
                $$hash{$key}[0]=&fwlib::get_ovpn_host_ip($base2,33);
        }elsif($base eq 'ovpn_n2n_src' ||$base eq 'ovpn_n2n_tgt' || $base eq 'OpenVPN N-2-N'){
-               $$hash{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,27);
+               $$hash{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,11);
        }elsif($base eq 'ipsec_net_src' || $base eq 'ipsec_net_tgt' || $base eq 'IpSec Network'){
                $$hash{$key}[0]=&fwlib::get_ipsec_net_ip($base2,11);
+       }elsif($base eq 'ipfire_src' ){
+               if($base2 eq 'GREEN'){
+                       $$hash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
+               }
+               if($base2 eq 'BLUE'){
+                       $$hash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
+               }
+               if($base2 eq 'ORANGE'){
+                       $$hash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
+               }
+               if($base2 eq 'ALL'){
+                       $$hash{$key}[0]='0.0.0.0/0';
+               }
+               if($base2 eq 'RED' || $base2 eq 'RED1'){
+                       open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
+                       $$hash{$key}[0]= <FILE>;
+                       close(FILE);
+               }else{
+                       foreach my $alias (sort keys %aliases){
+                               if ($base2 eq $alias){
+                                       $$hash{$key}[0]=$aliases{$alias}{'IPT'};
+                               }
+                       }
+               }
        }
 }
 sub get_prot
@@ -427,6 +537,10 @@ sub get_prot
                        return &fwlib::get_srvgrp_prot($$hash{$key}[15]);
                }
        }
+       #DNAT
+       if ($SRC_TGT eq '' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[11] eq '' && $$hash{$key}[12] ne ''){
+               return "$$hash{$key}[12]";
+       }
 }
 sub get_port
 {
@@ -439,7 +553,11 @@ sub get_port
                        if(index($$hash{$key}[10],",") > 0){
                                return "-m multiport --sport $$hash{$key}[10] ";
                        }else{
-                               return "--sport $$hash{$key}[10] ";
+                               if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ||($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat')  ){
+                                       return "--sport $$hash{$key}[10] ";
+                               }else{
+                                       return ":$$hash{$key}[10]";
+                               }
                        }
                }elsif($$hash{$key}[9] ne '' && $$hash{$key}[9] ne 'All ICMP-Types'){
                        return "--icmp-type $$hash{$key}[9] ";
@@ -447,14 +565,18 @@ sub get_port
                        return;
                }
        }elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
-               
                if($$hash{$key}[14] eq 'TGT_PORT'){
                        if ($$hash{$key}[15] ne ''){
                                $$hash{$key}[15] =~ s/\|/,/g;
                                if(index($$hash{$key}[15],",") > 0){
                                        return "-m multiport --dport $$hash{$key}[15] ";
                                }else{
-                                       return "--dport $$hash{$key}[15] ";
+                                       if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ){
+                                               return "--dport $$hash{$key}[15] ";
+                                        }else{
+                                                $$hash{$key}[15] =~ s/\:/-/g;
+                                                return ":$$hash{$key}[15]";
+                                        }
                                }
                        }elsif($$hash{$key}[13] ne '' && $$hash{$key}[13] ne 'All ICMP-Types'){
                                return "--icmp-type $$hash{$key}[13] ";
@@ -463,7 +585,11 @@ sub get_port
                        }
                }elsif($$hash{$key}[14] eq 'cust_srv'){
                        if ($prot ne 'ICMP'){
-                               return "--dport ".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
+                               if($$hash{$key}[31] eq 'dnat' && $$hash{$key}[28] eq 'ON'){
+                                       return ":".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
+                               }else{
+                                       return "--dport ".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
+                               }
                        }elsif($prot eq 'ICMP' && $$hash{$key}[15] ne 'All ICMP-Types'){
                                return "--icmp-type ".&fwlib::get_srv_port($$hash{$key}[15],3,$prot);
                        }elsif($prot eq 'ICMP' && $$hash{$key}[15] eq 'All ICMP-Types'){