]>
git.ipfire.org Git - people/teissler/ipfire-2.x.git/blob - config/forwardfw/rules.pl
3b2cb03f1cf64654e08bda9d27d66261d1d6377a
2 ###############################################################################
4 # IPFire.org - A linux based firewall #
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. #
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. #
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/>. #
20 ###############################################################################
22 # Hi folks! I hope this code is useful for all. I needed something to handle #
23 # my VPN Connections in a comfortable way. #
24 # This script builds firewallrules from the webinterface #
25 ###############################################################################
28 no warnings
'uninitialized';
30 # enable only the following on debugging purpose
32 #use CGI::Carp 'fatalsToBrowser';
35 my %defaultNetworks=();
48 require '/var/ipfire/general-functions.pl';
49 require "${General::swroot}/lang.pl";
50 require "${General::swroot}/forward/bin/firewall-lib.pl";
52 my $configfwdfw = "${General::swroot}/forward/config";
53 my $configinput = "${General::swroot}/forward/input";
54 my $p2pfile = "${General::swroot}/forward/p2protocols";
55 my $configgrp = "${General::swroot}/fwhosts/customgroups";
56 my $netsettings = "${General::swroot}/ethernet/settings";
60 my ($TYPE,$PROT,$SPROT,$DPROT,$SPORT,$DPORT,$TIME,$TIMEFROM,$TIMETILL,$SRC_TGT);
61 my $CHAIN="FORWARDFW";
64 &General
::readhash
("${General::swroot}/forward/settings", \
%fwdfwsettings);
65 &General
::readhash
("$netsettings", \
%defaultNetworks);
66 &General
::readhasharray
($configfwdfw, \
%configfwdfw);
67 &General
::readhasharray
($configinput, \
%configinputfw);
68 &General
::readhasharray
($configgrp, \
%customgrp);
69 &General
::get_aliases
(\
%aliases);
71 ################################
73 ################################
74 my $MODE=1; # 0 - normal operation
75 # 1 - print configline and rules to console
77 ################################
80 if($param eq 'flush'){
82 print " Flushing chains...\n";
87 print " Flushing chains...\n";
91 print " Preparing rules...\n";
95 if ($fwdfwsettings{'POLICY'} eq 'MODE1'){
97 system ("/usr/sbin/firewall-forward-policy");
98 }elsif($fwdfwsettings{'POLICY'} eq 'MODE2'){
99 if ($defaultNetworks{'ORANGE_DEV'}){
100 $defaultNetworks{'ORANGE_NETMASK'}=&General
::iporsubtocidr
($defaultNetworks{'ORANGE_NETMASK'});
101 $defaultNetworks{'GREEN_NETMASK'}=&General
::iporsubtocidr
($defaultNetworks{'GREEN_NETMASK'});
102 $orange="$defaultNetworks{'ORANGE_ADDRESS'}/$defaultNetworks{'ORANGE_NETMASK'}";
103 $green="$defaultNetworks{'GREEN_ADDRESS'}/$defaultNetworks{'GREEN_NETMASK'}";
104 #set default rules for DMZ
105 system ("iptables -A $CHAIN -s $orange -d $green -j RETURN");
108 system ("iptables -A $CHAIN -m state --state NEW -j ACCEPT");
109 system ("/usr/sbin/firewall-forward-policy");
115 system ("iptables -F FORWARDFW");
116 system ("iptables -F INPUTFW");
120 if (! -z
"${General::swroot}/forward/config"){
121 &buildrules
(\
%configfwdfw);
123 if (! -z
"${General::swroot}/forward/input"){
124 &buildrules
(\
%configinputfw);
131 foreach my $key (sort {$a <=> $b} keys %$hash){
133 if($$hash{$key}[2] eq 'ON'){
135 if ($$hash{$key}[3] eq 'cust_grp_src'){
136 foreach my $grp (sort {$a <=> $b} keys %customgrp){
137 if($customgrp{$grp}[0] eq $$hash{$key}[4]){
138 &get_address
($customgrp{$grp}[3],$customgrp{$grp}[2],"src");
142 &get_address
($$hash{$key}[3],$$hash{$key}[4],"src");
145 if ($$hash{$key}[5] eq 'cust_grp_tgt'){
146 foreach my $grp (sort {$a <=> $b} keys %customgrp){
147 if($customgrp{$grp}[0] eq $$hash{$key}[6]){
148 &get_address
($customgrp{$grp}[3],$customgrp{$grp}[2],"tgt");
151 }elsif($$hash{$key}[5] eq 'ipfire'){
153 if($$hash{$key}[6] eq 'Default IP'){
154 open(FILE
, "/var/ipfire/red/local-ipaddress") or die 'Unable to open config file.';
155 $targethash{$key}[0]= <FILE
>;
158 foreach my $alias (sort keys %aliases){
159 if ($$hash{$key}[6] eq $alias){
160 $targethash{$key}[0]=$aliases{$alias}{'IPT'};
165 &get_address
($$hash{$key}[5],$$hash{$key}[6],"tgt");
167 ##get source prot and port
169 $SPROT = &get_prot
($hash,$key);
170 $SPORT = &get_port
($hash,$key);
173 ##get target prot and port
174 $DPROT=&get_prot
($hash,$key);
176 if ($DPROT eq ''){$DPROT=' ';}
177 @DPROT=split(",",$DPROT);
180 if($$hash{$key}[18] eq 'ON'){
181 if($$hash{$key}[19] ne ''){push (@timeframe,"Mon");}
182 if($$hash{$key}[20] ne ''){push (@timeframe,"Tue");}
183 if($$hash{$key}[21] ne ''){push (@timeframe,"Wed");}
184 if($$hash{$key}[22] ne ''){push (@timeframe,"Thu");}
185 if($$hash{$key}[23] ne ''){push (@timeframe,"Fri");}
186 if($$hash{$key}[24] ne ''){push (@timeframe,"Sat");}
187 if($$hash{$key}[25] ne ''){push (@timeframe,"Sun");}
188 $TIME=join(",",@timeframe);
189 $TIMEFROM="--timestart $$hash{$key}[26] ";
190 $TIMETILL="--timestop $$hash{$key}[27] ";
191 $TIME="-m time --weekdays $TIME $TIMEFROM $TIMETILL";
195 foreach my $i (0 .. $#{$$hash{$key}}){
196 print "$i: $$hash{$key}[$i] ";
199 print"##################################\n";
200 #print rules to console
201 foreach my $DPROT (@DPROT){
202 $DPORT = &get_port
($hash,$key,$DPROT);
203 if ($SPROT ne ''){$PROT=$SPROT;}else{$PROT=$DPROT;}
204 $PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
205 foreach my $a (sort keys %sourcehash){
206 foreach my $b (sort keys %targethash){
207 if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
208 if($SPROT eq '' || $SPROT eq $DPROT || $DPROT eq ' '){
209 if(substr($sourcehash{$a}[0], 3, 3) ne 'mac'){ $STAG="-s";}
210 if ($$hash{$key}[17] eq 'ON'){
211 print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
213 print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
220 }elsif($MODE eq '0'){
221 foreach my $DPROT (@DPROT){
222 $DPORT = &get_port
($hash,$key,$DPROT);
223 if ($SPROT ne ''){$PROT=$SPROT;}else{$PROT=$DPROT;}
224 $PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
225 foreach my $a (sort keys %sourcehash){
226 foreach my $b (sort keys %targethash){
227 if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
228 if($SPROT eq '' || $SPROT eq $DPROT || $DPROT eq ' '){
229 if(substr($sourcehash{$a}[0], 3, 3) ne 'mac'){ $STAG="-s";}
230 if ($$hash{$key}[17] eq 'ON'){
231 system ("iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG");
233 system ("iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]");
252 open( FILE
, "< $p2pfile" ) or die "Unable to read $p2pfile";
255 my $CMD = "-m ipp2p";
256 foreach my $p2pentry (sort @p2ps) {
257 my @p2pline = split( /\;/, $p2pentry );
258 if ( $fwdfwsettings{'POLICY'} eq 'MODE1' ) {
260 if ("$p2pline[2]" eq "on") {
261 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
265 if ("$p2pline[2]" eq "off") {
266 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
272 print"/sbin/iptables -A FORWARDFW $CMD $P2PSTRING -j $DO\n";
276 system("/sbin/iptables -A FORWARDFW $CMD $P2PSTRING -j $DO");
283 my $base=shift; #source of checking ($configfwdfw{$key}[x] or groupkey
285 my $type=shift; #src or tgt
292 my $key = &General
::findhasharraykey
($hash);
293 if($base eq 'src_addr' || $base eq 'tgt_addr' ){
294 if (&General
::validmac
($base2)){
295 $$hash{$key}[0] = "-m mac --mac-source $base2";
297 $$hash{$key}[0] = $base2;
299 }elsif($base eq 'std_net_src' || $base eq 'std_net_tgt' || $base eq 'Standard Network'){
300 $$hash{$key}[0]=&fwlib
::get_std_net_ip
($base2);
301 }elsif($base eq 'cust_net_src' || $base eq 'cust_net_tgt' || $base eq 'Custom Network'){
302 $$hash{$key}[0]=&fwlib
::get_net_ip
($base2);
303 }elsif($base eq 'cust_host_src' || $base eq 'cust_host_tgt' || $base eq 'Custom Host'){
304 $$hash{$key}[0]=&fwlib
::get_host_ip
($base2,$type);
305 }elsif($base eq 'ovpn_net_src' || $base eq 'ovpn_net_tgt' || $base eq 'OpenVPN static network'){
306 $$hash{$key}[0]=&fwlib
::get_ovpn_net_ip
($base2,1);
307 }elsif($base eq 'ovpn_host_src' ||$base eq 'ovpn_host_tgt' || $base eq 'OpenVPN static host'){
308 $$hash{$key}[0]=&fwlib
::get_ovpn_host_ip
($base2,33);
309 }elsif($base eq 'ovpn_n2n_src' ||$base eq 'ovpn_n2n_tgt' || $base eq 'OpenVPN N-2-N'){
310 $$hash{$key}[0]=&fwlib
::get_ovpn_n2n_ip
($base2,27);
311 }elsif($base eq 'ipsec_net_src' || $base eq 'ipsec_net_tgt' || $base eq 'IpSec Network'){
312 $$hash{$key}[0]=&fwlib
::get_ipsec_net_ip
($base2,11);
319 if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
320 if ($$hash{$key}[10] ne ''){
321 return"$$hash{$key}[8]";
322 }elsif($$hash{$key}[9] ne ''){
323 return"$$hash{$key}[8]";
325 return "$$hash{$key}[8]";
327 }elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
328 if ($$hash{$key}[14] eq 'TGT_PORT'){
329 if ($$hash{$key}[15] ne ''){
330 return "$$hash{$key}[12]";
331 }elsif($$hash{$key}[13] ne ''){
332 return "$$hash{$key}[12]";
334 return "$$hash{$key}[12]";
336 }elsif($$hash{$key}[14] eq 'cust_srv'){
337 return &fwlib
::get_srv_prot
($$hash{$key}[15]);
339 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
340 return &fwlib
::get_srvgrp_prot
($$hash{$key}[15]);
349 if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
350 if ($$hash{$key}[10] ne ''){
351 $$hash{$key}[10] =~ s/\|/,/g;
352 if(index($$hash{$key}[10],",") > 0){
353 return "-m multiport --sport $$hash{$key}[10] ";
355 return "--sport $$hash{$key}[10] ";
357 }elsif($$hash{$key}[9] ne '' && $$hash{$key}[9] ne 'All ICMP-Types'){
358 return "--icmp-type $$hash{$key}[9] ";
359 }elsif($$hash{$key}[9] eq 'All ICMP-Types'){
362 }elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
364 if($$hash{$key}[14] eq 'TGT_PORT'){
365 if ($$hash{$key}[15] ne ''){
366 $$hash{$key}[15] =~ s/\|/,/g;
367 if(index($$hash{$key}[15],",") > 0){
368 return "-m multiport --dport $$hash{$key}[15] ";
370 return "--dport $$hash{$key}[15] ";
372 }elsif($$hash{$key}[13] ne '' && $$hash{$key}[13] ne 'All ICMP-Types'){
373 return "--icmp-type $$hash{$key}[13] ";
374 }elsif($$hash{$key}[13] ne '' && $$hash{$key}[13] eq 'All ICMP-Types'){
377 }elsif($$hash{$key}[14] eq 'cust_srv'){
378 if ($prot ne 'ICMP'){
379 return "--dport ".&fwlib
::get_srv_port
($$hash{$key}[15],1,$prot);
380 }elsif($prot eq 'ICMP' && $$hash{$key}[15] ne 'All ICMP-Types'){
381 return "--icmp-type ".&fwlib
::get_srv_port
($$hash{$key}[15],3,$prot);
382 }elsif($prot eq 'ICMP' && $$hash{$key}[15] eq 'All ICMP-Types'){
385 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
386 if ($prot ne 'ICMP'){
387 return &fwlib
::get_srvgrp_port
($$hash{$key}[15],$prot);
389 elsif($prot eq 'ICMP'){
390 return &fwlib
::get_srvgrp_port
($$hash{$key}[15],$prot);