###############################################################################
# #
# IPFire.org - A linux based firewall #
-# Copyright (C) 2012 #
+# Copyright (C) 2013 Alexander Marx <amarx@ipfire.org> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
# #
###############################################################################
-# #
-# Hi folks! I hope this code is useful for all. I needed something to handle #
-# my VPN Connections in a comfortable way. #
-# This script builds firewallrules from the webinterface #
-###############################################################################
use strict;
use Time::Local;
my @timeframe=();
my %configinputfw=();
my %configoutgoingfw=();
-my %configdmzfw=();
my %confignatfw=();
my %aliases=();
my @DPROT=();
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";
-my $confignat = "${General::swroot}/forward/nat";
my $p2pfile = "${General::swroot}/forward/p2protocols";
my $configgrp = "${General::swroot}/fwhosts/customgroups";
my $netsettings = "${General::swroot}/ethernet/settings";
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($configoutgoing, \%configoutgoingfw);
-&General::readhasharray($confignat, \%confignatfw);
&General::readhasharray($configgrp, \%customgrp);
&General::get_aliases(\%aliases);
################################
# DEBUG/TEST #
################################
-my $MODE=1; # 0 - normal operation
+my $MODE=0; # 0 - normal operation
# 1 - print configline and rules to console
#
################################
&p2pblock;
system ("/usr/sbin/firewall-policy");
}elsif($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 $CHAIN -m conntrack --ctstate NEW -j ACCEPT");
system ("/usr/sbin/firewall-policy");
+ system ("/etc/sysconfig/firewall.local reload");
}
}
}
system ("iptables -F FORWARDFW");
system ("iptables -F INPUTFW");
system ("iptables -F OUTGOINGFW");
- system ("iptables -F PORTFWACCESS");
system ("iptables -t nat -F NAT_DESTINATION");
system ("iptables -t nat -F NAT_SOURCE");
}
sub preparerules
{
- if (! -z "${General::swroot}/forward/dmz"){
- &buildrules(\%configdmzfw);
- }
if (! -z "${General::swroot}/forward/config"){
&buildrules(\%configfwdfw);
}
if (! -z "${General::swroot}/forward/outgoing"){
&buildrules(\%configoutgoingfw);
}
- if (! -z "${General::swroot}/forward/nat"){
- &buildrules(\%confignatfw);
- }
}
sub buildrules
{
my $natip;
my $snatport;
my $fireport;
+ my $nat;
+ my $fwaccessdport;
+ my $natchain;
+ my $icmptype;
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' || $$hash{$key}[6] eq 'RED1') && $conexists eq 'off' );
+ $command="iptables -A";
if ($$hash{$key}[28] eq 'ON'){
$command='iptables -t nat -A';
- $natip=&get_nat_ip($$hash{$key}[29]);
+ $natip=&get_nat_ip($$hash{$key}[29],$$hash{$key}[31]);
if($$hash{$key}[31] eq 'dnat'){
- $$hash{$key}[0]='DNAT';
- $fireport='--dport '.$$hash{$key}[30] if ($$hash{$key}[30]>0);
+ $nat='DNAT';
+ if ($$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{
- $$hash{$key}[0]='SNAT';
+ $nat='SNAT';
}
}
$STAG='';
&get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"tgt");
}
}
- }elsif($$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{
if(substr($DPORT, 2, 4) eq 'icmp'){
my @icmprule= split(",",substr($DPORT, 12,));
foreach (@icmprule){
+ $icmptype="--icmp-type ";
+ if ($_ eq "BLANK") {
+ $icmptype="";
+ $_="";
+ }
if ($$hash{$key}[17] eq 'ON'){
- print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j LOG\n";
+ print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG\n";
}
- print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]\n";
- }
- }elsif($$hash{$key}[28] ne 'ON'){
- if ($$hash{$key}[17] eq 'ON'){
- print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
+ print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]\n";
}
- print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
+ $natchain='NAT_DESTINATION';
if ($$hash{$key}[17] eq 'ON'){
- print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
+ print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
}
- my $fwaccessdport="--dport ".substr($DPORT,1,) if ($DPORT);
my ($ip,$sub) =split("/",$targethash{$b}[0]);
- print "iptables -A PORTFWACCESS $PROT -i $con -d $ip $fwaccessdport $TIME -j ACCEPT\n";
- print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $$hash{$key}[0] --to $ip$DPORT\n";
- }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[32] eq 'snat'){
- print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0] --to $natip$fireport\n";
+ 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 $$hash{$key}[30]";
+ }
+ }
+ print "iptables -A FORWARDFW $PROT -i $con $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$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 ($$hash{$key}[17] eq 'ON' ){
+ print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
+ }
+ if ($PROT ne '-p ICMP'){
+ print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
}
}
}
if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
if($SPROT eq '' || $SPROT eq $DPROT || $DPROT eq ' '){
if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
+ #Process ICMP RULE
if(substr($DPORT, 2, 4) eq 'icmp'){
my @icmprule= split(",",substr($DPORT, 12,));
foreach (@icmprule){
+ $icmptype="--icmp-type ";
+ if ($_ eq "BLANK") {
+ $icmptype="";
+ $_="";
+ }
if ($$hash{$key}[17] eq 'ON'){
- system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] -- icmp-type $_ $TIME -j LOG");
+ system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG");
}
- system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]");
- }
- }elsif($$hash{$key}[28] ne 'ON'){
- if ($$hash{$key}[17] eq 'ON'){
- system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
+ system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]");
}
- system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
+ #PROCESS DNAT RULE (Portforward)
}elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
+ $natchain='NAT_DESTINATION';
if ($$hash{$key}[17] eq 'ON'){
- system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
+ system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
}
- my $fwaccessdport="--dport ".substr($DPORT,1,) if ($DPORT);
my ($ip,$sub) =split("/",$targethash{$b}[0]);
- system "iptables -A PORTFWACCESS $PROT -i $con -d $ip $fwaccessdport $TIME -j ACCEPT\n";
- system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $$hash{$key}[0] --to $ip$DPORT\n";
- }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
- if ($$hash{$key}[17] eq 'ON'){
- system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT '\n";
+ system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip$DPORT\n";
+ $DPORT =~ s/\-/:/g;
+ if ($DPORT){
+ $fwaccessdport="--dport ".substr($DPORT,1,);
+ }elsif(! $DPORT && $$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{$key}[30]";
+ }
}
- system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0] --to $natip$fireport\n";
+ system "iptables -A FORWARDFW $PROT -i $con $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
+ next;
+ #PROCESS SNAT RULE
+ }elsif($$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{$key}[17] eq 'ON' && substr($DPORT, 2, 4) ne 'icmp'){
+ system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
+ }
+ #PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
+ if ($PROT ne '-p ICMP'){
+ system "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
}
}
}
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($val eq 'Default IP'){
+ }elsif($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 $al){
+ if($val eq $al && $type eq 'dnat'){
$result='-d '.$aliases{$al}{'IPT'};
+ }elsif($val eq $al && $type eq 'snat'){
+ $result=$aliases{$al}{'IPT'};
}
}
}
}elsif($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
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 "$$hash{$key}[12]";
+ }
}
sub get_port
{
return;
}
}elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
-
if($$hash{$key}[14] eq 'TGT_PORT'){
if ($$hash{$key}[15] ne ''){
$$hash{$key}[15] =~ s/\|/,/g;
if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ){
return "--dport $$hash{$key}[15] ";
}else{
- return ":$$hash{$key}[15]";
+ $$hash{$key}[15] =~ s/\:/-/g;
+ return ":$$hash{$key}[15]";
}
}
}elsif($$hash{$key}[13] ne '' && $$hash{$key}[13] ne 'All ICMP-Types'){
}
}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'){
projects / people / teissler / ipfire-2.x.git / blobdiff