firewall: Move scripts from /var/ipfire/firewall/bin to /usr/lib/firewall.
[people/teissler/ipfire-2.x.git] / config / firewall / rules.pl
CommitLineData
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1#!/usr/bin/perl
2###############################################################################
3# #
4# IPFire.org - A linux based firewall #
5bee9a9d 5# Copyright (C) 2013 Alexander Marx <amarx@ipfire.org> #
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6# #
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. #
11# #
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. #
16# #
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/>. #
19# #
20###############################################################################
2a81ab0d 21
2a81ab0d 22use strict;
472136c9 23use Time::Local;
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24no warnings 'uninitialized';
25
26# enable only the following on debugging purpose
27#use warnings;
28#use CGI::Carp 'fatalsToBrowser';
29
30my %fwdfwsettings=();
31my %defaultNetworks=();
32my %configfwdfw=();
33my %color=();
34my %icmptypes=();
35my %ovpnSettings=();
36my %customgrp=();
37our %sourcehash=();
38our %targethash=();
39my @timeframe=();
40my %configinputfw=();
5d7faa45 41my %configoutgoingfw=();
a6edca5a 42my %confignatfw=();
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43my %aliases=();
44my @DPROT=();
36196d0d 45my @p2ps=();
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46require '/var/ipfire/general-functions.pl';
47require "${General::swroot}/lang.pl";
73372ed4 48require "/usr/lib/firewall/firewall-lib.pl";
2a81ab0d 49
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50my $configfwdfw = "${General::swroot}/firewall/config";
51my $configinput = "${General::swroot}/firewall/input";
52my $configoutgoing = "${General::swroot}/firewall/outgoing";
53my $p2pfile = "${General::swroot}/firewall/p2protocols";
2a81ab0d 54my $configgrp = "${General::swroot}/fwhosts/customgroups";
210ee67b 55my $netsettings = "${General::swroot}/ethernet/settings";
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56my $errormessage = '';
57my $orange = '';
58my $green = '';
59my $blue = '';
2a81ab0d 60my ($TYPE,$PROT,$SPROT,$DPROT,$SPORT,$DPORT,$TIME,$TIMEFROM,$TIMETILL,$SRC_TGT);
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61my $CHAIN = "FORWARDFW";
62my $conexists = 'off';
63my $command = 'iptables -A';
64my $dnat ='';
65my $snat ='';
66
6d8eb5de 67&General::readhash("${General::swroot}/firewall/settings", \%fwdfwsettings);
210ee67b 68&General::readhash("$netsettings", \%defaultNetworks);
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69&General::readhasharray($configfwdfw, \%configfwdfw);
70&General::readhasharray($configinput, \%configinputfw);
5d7faa45 71&General::readhasharray($configoutgoing, \%configoutgoingfw);
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72&General::readhasharray($configgrp, \%customgrp);
73&General::get_aliases(\%aliases);
74
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75#check if we have an internetconnection
76open (CONN,"/var/ipfire/red/iface");
77my $con = <CONN>;
78close(CONN);
79if (-f "/var/ipfire/red/active"){
80 $conexists='on';
81}
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82open (CONN1,"/var/ipfire/red/local-ipaddress");
83my $redip = <CONN1>;
84close(CONN1);
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85#################
86# DEBUG/TEST #
87#################
dc21519f 88my $MODE=0; # 0 - normal operation
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89 # 1 - print configline and rules to console
90 #
86a921ee 91#################
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92my $param=shift;
93
94if($param eq 'flush'){
95 if ($MODE eq '1'){
96 print " Flushing chains...\n";
97 }
98 &flush;
99}else{
100 if ($MODE eq '1'){
101 print " Flushing chains...\n";
102 }
103 &flush;
104 if ($MODE eq '1'){
105 print " Preparing rules...\n";
106 }
107 &preparerules;
108 if($MODE eq '0'){
109 if ($fwdfwsettings{'POLICY'} eq 'MODE1'){
af49e367 110 &p2pblock;
86a921ee 111 system ("/usr/sbin/firewall-policy");
2a81ab0d 112 }elsif($fwdfwsettings{'POLICY'} eq 'MODE2'){
6adcf156 113 &p2pblock;
b85d2a98 114 system ("iptables -A $CHAIN -m conntrack --ctstate NEW -j ACCEPT");
5d7faa45 115 system ("/usr/sbin/firewall-policy");
674f4e9d 116 system ("/etc/sysconfig/firewall.local reload");
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117 }
118 }
119}
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120sub flush
121{
122 system ("iptables -F FORWARDFW");
123 system ("iptables -F INPUTFW");
5d7faa45 124 system ("iptables -F OUTGOINGFW");
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125 system ("iptables -t nat -F NAT_DESTINATION");
126 system ("iptables -t nat -F NAT_SOURCE");
86a921ee 127}
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128sub preparerules
129{
6d8eb5de 130 if (! -z "${General::swroot}/firewall/config"){
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131 &buildrules(\%configfwdfw);
132 }
6d8eb5de 133 if (! -z "${General::swroot}/firewall/input"){
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134 &buildrules(\%configinputfw);
135 }
6d8eb5de 136 if (! -z "${General::swroot}/firewall/outgoing"){
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137 &buildrules(\%configoutgoingfw);
138 }
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139}
140sub buildrules
141{
142 my $hash=shift;
b5269091 143 my $STAG;
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144 my $natip;
145 my $snatport;
146 my $fireport;
bc912c6e 147 my $nat;
98cee89f 148 my $fwaccessdport;
c12392c0 149 my $natchain;
2aeb4b25 150 my $icmptype;
992394d5 151 foreach my $key (sort {$a <=> $b} keys %$hash){
ff4770c7 152 next if (($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1') && $conexists eq 'off' );
2aeb4b25 153 $command="iptables -A";
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154 if ($$hash{$key}[28] eq 'ON'){
155 $command='iptables -t nat -A';
08e1c65d 156 $natip=&get_nat_ip($$hash{$key}[29],$$hash{$key}[31]);
a6edca5a 157 if($$hash{$key}[31] eq 'dnat'){
bc912c6e 158 $nat='DNAT';
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159 if ($$hash{$key}[30] =~ /\|/){
160 $$hash{$key}[30]=~ tr/|/,/;
161 $fireport='-m multiport --dport '.$$hash{$key}[30];
162 }else{
163 $fireport='--dport '.$$hash{$key}[30] if ($$hash{$key}[30]>0);
164 }
a6edca5a 165 }else{
bc912c6e 166 $nat='SNAT';
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167 }
168 }
b5269091 169 $STAG='';
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170 if($$hash{$key}[2] eq 'ON'){
171 #get source ip's
172 if ($$hash{$key}[3] eq 'cust_grp_src'){
992394d5 173 foreach my $grp (sort {$a <=> $b} keys %customgrp){
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174 if($customgrp{$grp}[0] eq $$hash{$key}[4]){
175 &get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"src");
176 }
177 }
178 }else{
179 &get_address($$hash{$key}[3],$$hash{$key}[4],"src");
180 }
181 #get target ip's
182 if ($$hash{$key}[5] eq 'cust_grp_tgt'){
992394d5 183 foreach my $grp (sort {$a <=> $b} keys %customgrp){
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184 if($customgrp{$grp}[0] eq $$hash{$key}[6]){
185 &get_address($customgrp{$grp}[3],$customgrp{$grp}[2],"tgt");
186 }
187 }
a0fb1099 188 }elsif($$hash{$key}[5] eq 'ipfire' ){
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189 if($$hash{$key}[6] eq 'GREEN'){
190 $targethash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
191 }
192 if($$hash{$key}[6] eq 'BLUE'){
193 $targethash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
194 }
195 if($$hash{$key}[6] eq 'ORANGE'){
196 $targethash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
197 }
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198 if($$hash{$key}[6] eq 'ALL'){
199 $targethash{$key}[0]='0.0.0.0/0';
200 }
690b0bd7 201 if($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1'){
ff4770c7 202 open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
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203 $targethash{$key}[0]= <FILE>;
204 close(FILE);
205 }else{
206 foreach my $alias (sort keys %aliases){
207 if ($$hash{$key}[6] eq $alias){
208 $targethash{$key}[0]=$aliases{$alias}{'IPT'};
209 }
210 }
211 }
212 }else{
213 &get_address($$hash{$key}[5],$$hash{$key}[6],"tgt");
214 }
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215 ##get source prot and port
216 $SRC_TGT='SRC';
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217 $SPORT = &get_port($hash,$key);
218 $SRC_TGT='';
14f7cb87 219
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220 ##get target prot and port
221 $DPROT=&get_prot($hash,$key);
14f7cb87 222
a4c7bf6b 223 if ($DPROT eq ''){$DPROT=' ';}
2a81ab0d 224 @DPROT=split(",",$DPROT);
14f7cb87 225
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226 #get time if defined
227 if($$hash{$key}[18] eq 'ON'){
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228 my ($time1,$time2,$daylight);
229 my $daylight=$$hash{$key}[28];
230 $time1=&get_time($$hash{$key}[26],$daylight);
231 $time2=&get_time($$hash{$key}[27],$daylight);
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232 if($$hash{$key}[19] ne ''){push (@timeframe,"Mon");}
233 if($$hash{$key}[20] ne ''){push (@timeframe,"Tue");}
234 if($$hash{$key}[21] ne ''){push (@timeframe,"Wed");}
235 if($$hash{$key}[22] ne ''){push (@timeframe,"Thu");}
236 if($$hash{$key}[23] ne ''){push (@timeframe,"Fri");}
237 if($$hash{$key}[24] ne ''){push (@timeframe,"Sat");}
238 if($$hash{$key}[25] ne ''){push (@timeframe,"Sun");}
239 $TIME=join(",",@timeframe);
86a921ee 240
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241 $TIMEFROM="--timestart $time1 ";
242 $TIMETILL="--timestop $time2 ";
a0f267b9 243 $TIME="-m time --weekdays $TIME $TIMEFROM $TIMETILL";
2a81ab0d 244 }
86a921ee 245 if ($MODE eq '1'){
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246 print "NR:$key ";
247 foreach my $i (0 .. $#{$$hash{$key}}){
248 print "$i: $$hash{$key}[$i] ";
249 }
250 print "\n";
251 print"##################################\n";
252 #print rules to console
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253 foreach my $DPROT (@DPROT){
254 $DPORT = &get_port($hash,$key,$DPROT);
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255 if ($DPROT ne 'TCP' && $DPROT ne 'UDP' && $DPROT ne 'ICMP' ){
256 $DPORT='';
257 }
a4c7bf6b 258 $PROT=$DPROT;
3af3ecd3 259 $PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
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260 foreach my $a (sort keys %sourcehash){
261 foreach my $b (sort keys %targethash){
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262 next if ($targethash{$b}[0] eq 'none');
263 $STAG='';
d7dc9718 264 if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
6e62882d 265 if($DPROT ne ''){
5d7faa45 266 if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
cdb3536b 267 #Process ICMP RULE
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268 if(substr($DPORT, 2, 4) eq 'icmp'){
269 my @icmprule= split(",",substr($DPORT, 12,));
270 foreach (@icmprule){
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271 $icmptype="--icmp-type ";
272 if ($_ eq "BLANK") {
273 $icmptype="";
274 $_="";
275 }
8cb1afc8 276 if ($$hash{$key}[17] eq 'ON'){
2aeb4b25 277 print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG\n";
8cb1afc8 278 }
2aeb4b25 279 print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]\n";
8cb1afc8 280 }
cdb3536b 281 #PROCESS DNAT RULE (Portforward)
28640b73 282 }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
c12392c0 283 $natchain='NAT_DESTINATION';
28640b73 284 if ($$hash{$key}[17] eq 'ON'){
cdb3536b 285 print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
28640b73 286 }
28640b73 287 my ($ip,$sub) =split("/",$targethash{$b}[0]);
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288 #Process NAT with servicegroup used
289 if ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[14] eq 'cust_srvgrp'){
290 print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip $DPORT\n";
291 $fwaccessdport=$DPORT;
292 }else{
293 print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip$DPORT\n";
294 $DPORT =~ s/\-/:/g;
295 if ($DPORT){
296 $fwaccessdport="--dport ".substr($DPORT,1,);
297 }elsif(! $DPORT && $$hash{$key}[30] ne ''){
298 if ($$hash{$key}[30]=~m/|/i){
299 $$hash{$key}[30] =~ s/\|/,/g;
300 $fwaccessdport="-m multiport --dport $$hash{$key}[30]";
301 }else{
302 $fwaccessdport="--dport $$hash{$key}[30]";
303 }
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304 }
305 }
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306 print "iptables -A FORWARDFW $PROT -i $con $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
307 next;
cdb3536b 308 #PROCESS SNAT RULE
08e1c65d 309 }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
c12392c0 310 $natchain='NAT_SOURCE';
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311 if ($$hash{$key}[17] eq 'ON' ){
312 print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT' \n";
313 }
c12392c0 314 print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to $natip\n";
2a81ab0d 315 }
cdb3536b 316 #PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
93c2de1c 317 if ($PROT ne '-p ICMP'){
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318 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
319 print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
320 }
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321 print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
322 }
cdb3536b 323 #PROCESS Prot ICMP and type = All ICMP-Types
86a921ee 324 if ($PROT eq '-p ICMP' && $$hash{$key}[9] eq 'All ICMP-Types'){
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325 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
326 print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
327 }
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328 print "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
329 }
330 }
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331 }
332 }
333 }
334 print"\n";
335 }
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336 }elsif($MODE eq '0'){
337 foreach my $DPROT (@DPROT){
338 $DPORT = &get_port($hash,$key,$DPROT);
a4c7bf6b 339 $PROT=$DPROT;
3af3ecd3 340 $PROT="-p $PROT" if ($PROT ne '' && $PROT ne ' ');
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341 if ($DPROT ne 'TCP' && $DPROT ne'UDP' && $DPROT ne 'ICMP' ){
342 $DPORT='';
343 }
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344 foreach my $a (sort keys %sourcehash){
345 foreach my $b (sort keys %targethash){
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346 next if ($targethash{$b}[0] eq 'none');
347 $STAG='';
d7dc9718 348 if ($sourcehash{$a}[0] ne $targethash{$b}[0] && $targethash{$b}[0] ne 'none' || $sourcehash{$a}[0] eq '0.0.0.0/0.0.0.0'){
6e62882d 349 if($DPROT ne ''){
5d7faa45 350 if(substr($sourcehash{$a}[0], 3, 3) ne 'mac' && $sourcehash{$a}[0] ne ''){ $STAG="-s";}
93c2de1c 351 #Process ICMP RULE
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352 if(substr($DPORT, 2, 4) eq 'icmp'){
353 my @icmprule= split(",",substr($DPORT, 12,));
354 foreach (@icmprule){
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355 $icmptype="--icmp-type ";
356 if ($_ eq "BLANK") {
357 $icmptype="";
358 $_="";
359 }
8cb1afc8 360 if ($$hash{$key}[17] eq 'ON'){
2aeb4b25 361 system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG");
8cb1afc8 362 }
2aeb4b25 363 system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]");
a6edca5a 364 }
93c2de1c 365 #PROCESS DNAT RULE (Portforward)
a6edca5a 366 }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
c12392c0 367 $natchain='NAT_DESTINATION';
a6edca5a 368 if ($$hash{$key}[17] eq 'ON'){
cdb3536b 369 system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j LOG --log-prefix 'DNAT' \n";
8cb1afc8 370 }
a6edca5a 371 my ($ip,$sub) =split("/",$targethash{$b}[0]);
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372 #Process NAT with servicegroup used
373 if ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[14] eq 'cust_srvgrp'){
374 system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip $DPORT\n";
375 $fwaccessdport=$DPORT;
376 }else{
377 system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT $natip $fireport $TIME -j $nat --to $ip$DPORT\n";
378 $DPORT =~ s/\-/:/g;
379 if ($DPORT){
380 $fwaccessdport="--dport ".substr($DPORT,1,);
381 }elsif(! $DPORT && $$hash{$key}[30] ne ''){
382 if ($$hash{$key}[30]=~m/|/i){
383 $$hash{$key}[30] =~ s/\|/,/g;
384 $fwaccessdport="-m multiport --dport $$hash{$key}[30]";
385 }else{
386 $fwaccessdport="--dport $$hash{$key}[30]";
387 }
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388 }
389 }
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390 system "iptables -A FORWARDFW $PROT -i $con $STAG $sourcehash{$a}[0] -d $ip $fwaccessdport $TIME -j $$hash{$key}[0]\n";
391 next;
93c2de1c 392 #PROCESS SNAT RULE
a6edca5a 393 }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat'){
c12392c0 394 $natchain='NAT_SOURCE';
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395 if ($$hash{$key}[17] eq 'ON' ){
396 system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG --log-prefix 'SNAT' \n";
397 }
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398 system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to $natip\n";
399 }
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400 #PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)
401 if ($PROT ne '-p ICMP'){
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402 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
403 system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
404 }
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405 system "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
406 }
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407 #PROCESS Prot ICMP and type = All ICMP-Types
408 if ($PROT eq '-p ICMP' && $$hash{$key}[9] eq 'All ICMP-Types'){
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409 if ($$hash{$key}[17] eq 'ON' && $$hash{$key}[28] ne 'ON'){
410 system "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
411 }
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412 system "iptables -A $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $$hash{$key}[0]\n";
413 }
414 }
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415 }
416 }
417 }
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418 }
419 }
420 }
421 %sourcehash=();
422 %targethash=();
423 undef $TIME;
424 undef $TIMEFROM;
425 undef $TIMETILL;
a6edca5a 426 undef $fireport;
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427 }
428}
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429sub get_nat_ip
430{
431 my $val=shift;
08e1c65d 432 my $type=shift;
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433 my $result;
434 if($val eq 'RED' || $val eq 'GREEN' || $val eq 'ORANGE' || $val eq 'BLUE'){
435 $result=$defaultNetworks{$val.'_ADDRESS'};
436 }elsif($val eq 'ALL'){
437 $result='-i '.$con;
08e1c65d 438 }elsif($val eq 'Default IP' && $type eq 'dnat'){
a6edca5a 439 $result='-d '.$redip;
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440 }elsif($val eq 'Default IP' && $type eq 'snat'){
441 $result=$redip;
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442 }else{
443 foreach my $al (sort keys %aliases){
08e1c65d 444 if($val eq $al && $type eq 'dnat'){
a6edca5a 445 $result='-d '.$aliases{$al}{'IPT'};
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446 }elsif($val eq $al && $type eq 'snat'){
447 $result=$aliases{$al}{'IPT'};
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448 }
449 }
450 }
451 return $result;
452}
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453sub get_time
454{
455 my $val=shift;
456 my $val1=shift;
457 my $time;
458 my $minutes;
459 my $ruletime;
460 $minutes = &utcmin($val);
461 $ruletime = $minutes + &time_get_utc($val);
462 if ($ruletime < 0){$ruletime +=1440;}
463 if ($ruletime > 1440){$ruletime -=1440;}
464 $time=sprintf "%02d:%02d", $ruletime / 60, $ruletime % 60;
465 return $time;
466}
467sub time_get_utc
468{
469 # Calculates the UTCtime from a given time
470 my $val=shift;
471 my @localtime=localtime(time);
472 my @gmtime=gmtime(time);
473 my $diff = ($gmtime[2]*60+$gmtime[1]%60)-($localtime[2]*60+$localtime[1]%60);
474 return $diff;
475}
476sub utcmin
477{
478 my $ruletime=shift;
479 my ($hrs,$min) = split(":",$ruletime);
480 my $newtime = $hrs*60+$min;
481 return $newtime;
482}
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483sub p2pblock
484{
485 my $P2PSTRING;
486 my $DO;
487 open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
488 @p2ps = <FILE>;
489 close FILE;
490 my $CMD = "-m ipp2p";
491 foreach my $p2pentry (sort @p2ps) {
492 my @p2pline = split( /\;/, $p2pentry );
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493 if ( $fwdfwsettings{'POLICY'} eq 'MODE1' ) {
494 $DO = "ACCEPT";
5238a871 495 if ("$p2pline[2]" eq "on") {
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496 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
497 }
8d1beadc 498 }else {
36196d0d 499 $DO = "RETURN";
5238a871 500 if ("$p2pline[2]" eq "off") {
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501 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
502 }
503 }
504 }
505 if ($MODE eq 1){
506 if($P2PSTRING){
507 print"/sbin/iptables -A FORWARDFW $CMD $P2PSTRING -j $DO\n";
508 }
509 }else{
510 if($P2PSTRING){
511 system("/sbin/iptables -A FORWARDFW $CMD $P2PSTRING -j $DO");
512 }
513 }
514}
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515sub get_address
516{
517 my $base=shift; #source of checking ($configfwdfw{$key}[x] or groupkey
518 my $base2=shift;
519 my $type=shift; #src or tgt
520 my $hash;
521 if ($type eq 'src'){
86a921ee 522 $hash=\%sourcehash;
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523 }else{
524 $hash=\%targethash;
525 }
526 my $key = &General::findhasharraykey($hash);
527 if($base eq 'src_addr' || $base eq 'tgt_addr' ){
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528 if (&General::validmac($base2)){
529 $$hash{$key}[0] = "-m mac --mac-source $base2";
530 }else{
531 $$hash{$key}[0] = $base2;
532 }
2a81ab0d 533 }elsif($base eq 'std_net_src' || $base eq 'std_net_tgt' || $base eq 'Standard Network'){
ddcec9d3 534 $$hash{$key}[0]=&fwlib::get_std_net_ip($base2,$con);
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535 }elsif($base eq 'cust_net_src' || $base eq 'cust_net_tgt' || $base eq 'Custom Network'){
536 $$hash{$key}[0]=&fwlib::get_net_ip($base2);
537 }elsif($base eq 'cust_host_src' || $base eq 'cust_host_tgt' || $base eq 'Custom Host'){
538 $$hash{$key}[0]=&fwlib::get_host_ip($base2,$type);
539 }elsif($base eq 'ovpn_net_src' || $base eq 'ovpn_net_tgt' || $base eq 'OpenVPN static network'){
540 $$hash{$key}[0]=&fwlib::get_ovpn_net_ip($base2,1);
541 }elsif($base eq 'ovpn_host_src' ||$base eq 'ovpn_host_tgt' || $base eq 'OpenVPN static host'){
542 $$hash{$key}[0]=&fwlib::get_ovpn_host_ip($base2,33);
543 }elsif($base eq 'ovpn_n2n_src' ||$base eq 'ovpn_n2n_tgt' || $base eq 'OpenVPN N-2-N'){
6fab5bca 544 $$hash{$key}[0]=&fwlib::get_ovpn_n2n_ip($base2,11);
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545 }elsif($base eq 'ipsec_net_src' || $base eq 'ipsec_net_tgt' || $base eq 'IpSec Network'){
546 $$hash{$key}[0]=&fwlib::get_ipsec_net_ip($base2,11);
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547 }elsif($base eq 'ipfire_src' ){
548 if($base2 eq 'GREEN'){
549 $$hash{$key}[0]=$defaultNetworks{'GREEN_ADDRESS'};
550 }
551 if($base2 eq 'BLUE'){
552 $$hash{$key}[0]=$defaultNetworks{'BLUE_ADDRESS'};
553 }
554 if($base2 eq 'ORANGE'){
555 $$hash{$key}[0]=$defaultNetworks{'ORANGE_ADDRESS'};
556 }
557 if($base2 eq 'ALL'){
558 $$hash{$key}[0]='0.0.0.0/0';
559 }
560 if($base2 eq 'RED' || $base2 eq 'RED1'){
561 open(FILE, "/var/ipfire/red/local-ipaddress")or die "Couldn't open local-ipaddress";
562 $$hash{$key}[0]= <FILE>;
563 close(FILE);
564 }else{
565 foreach my $alias (sort keys %aliases){
566 if ($base2 eq $alias){
567 $$hash{$key}[0]=$aliases{$alias}{'IPT'};
568 }
569 }
570 }
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571 }
572}
573sub get_prot
574{
575 my $hash=shift;
576 my $key=shift;
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577 #check AH,GRE,ESP or ICMP
578 if ($$hash{$key}[7] ne 'ON' && $$hash{$key}[11] ne 'ON'){
579 return "$$hash{$key}[8]";
580 }
581 if ($$hash{$key}[7] eq 'ON' || $$hash{$key}[11] eq 'ON'){
582 #check if servicegroup or service
583 if($$hash{$key}[14] eq 'cust_srv'){
2a81ab0d 584 return &fwlib::get_srv_prot($$hash{$key}[15]);
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585 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
586 return &fwlib::get_srvgrp_prot($$hash{$key}[15]);
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587 }elsif (($$hash{$key}[10] ne '' || $$hash{$key}[15] ne '') && $$hash{$key}[8] eq ''){ #when ports are used and prot set to "all"
588 return "TCP,UDP";
589 }elsif (($$hash{$key}[10] ne '' || $$hash{$key}[15] ne '') && ($$hash{$key}[8] eq 'TCP' || $$hash{$key}[8] eq 'UDP')){ #when ports are used and prot set to "tcp" or "udp"
590 return "$$hash{$key}[8]";
591 }elsif (($$hash{$key}[10] eq '' && $$hash{$key}[15] eq '') && $$hash{$key}[8] ne 'ICMP'){ #when ports are NOT used and prot NOT set to "ICMP"
592 return "$$hash{$key}[8]";
593 }else{
594 return "$$hash{$key}[8]";
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595 }
596 }
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597 #DNAT
598 if ($SRC_TGT eq '' && $$hash{$key}[31] eq 'dnat' && $$hash{$key}[11] eq '' && $$hash{$key}[12] ne ''){
fadcfb73 599 return "$$hash{$key}[8]";
98cee89f 600 }
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601}
602sub get_port
603{
604 my $hash=shift;
605 my $key=shift;
606 my $prot=shift;
14bcb9a2 607 #Get manual defined Ports from SOURCE
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608 if ($$hash{$key}[7] eq 'ON' && $SRC_TGT eq 'SRC'){
609 if ($$hash{$key}[10] ne ''){
8f0b047b 610 $$hash{$key}[10] =~ s/\|/,/g;
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611 if(index($$hash{$key}[10],",") > 0){
612 return "-m multiport --sport $$hash{$key}[10] ";
613 }else{
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614 if($$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') ){
615 return "--sport $$hash{$key}[10] ";
616 }else{
617 return ":$$hash{$key}[10]";
618 }
93a5f4a5 619 }
2a81ab0d 620 }
14bcb9a2 621 #Get manual ports from TARGET
2a81ab0d 622 }elsif($$hash{$key}[11] eq 'ON' && $SRC_TGT eq ''){
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623 if($$hash{$key}[14] eq 'TGT_PORT'){
624 if ($$hash{$key}[15] ne ''){
8f0b047b 625 $$hash{$key}[15] =~ s/\|/,/g;
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626 if(index($$hash{$key}[15],",") > 0){
627 return "-m multiport --dport $$hash{$key}[15] ";
628 }else{
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629 if($$hash{$key}[28] ne 'ON' || ($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'snat') ){
630 return "--dport $$hash{$key}[15] ";
631 }else{
829697d0 632 $$hash{$key}[15] =~ s/\:/-/g;
653a71b9 633 return ":$$hash{$key}[15]";
a6edca5a 634 }
93a5f4a5 635 }
2a81ab0d 636 }
14bcb9a2 637 #Get ports defined in custom Service (firewall-groups)
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638 }elsif($$hash{$key}[14] eq 'cust_srv'){
639 if ($prot ne 'ICMP'){
653a71b9 640 if($$hash{$key}[31] eq 'dnat' && $$hash{$key}[28] eq 'ON'){
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641 my $ports =&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
642 $ports =~ s/\:/-/g;
643 return ":".$ports
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644 }else{
645 return "--dport ".&fwlib::get_srv_port($$hash{$key}[15],1,$prot);
646 }
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647 }elsif($prot eq 'ICMP' && $$hash{$key}[11] eq 'ON'){ #When PROT is ICMP and "use targetport is checked, this is an icmp-service
648 return "--icmp-type ".&fwlib::get_srv_port($$hash{$key}[15],3,$prot);
2a81ab0d 649 }
14bcb9a2 650 #Get ports from services which are used in custom servicegroups (firewall-groups)
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651 }elsif($$hash{$key}[14] eq 'cust_srvgrp'){
652 if ($prot ne 'ICMP'){
653 return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
654 }
655 elsif($prot eq 'ICMP'){
656 return &fwlib::get_srvgrp_port($$hash{$key}[15],$prot);
657 }
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658 }
659 }
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660 #CHECK ICMP
661 if ($$hash{$key}[7] ne 'ON' && $$hash{$key}[11] ne 'ON' && $SRC_TGT eq ''){
662 if($$hash{$key}[9] ne '' && $$hash{$key}[9] ne 'All ICMP-Types'){
663 return "--icmp-type $$hash{$key}[9] ";
664 }elsif($$hash{$key}[9] eq 'All ICMP-Types'){
665 return;
666 }
667 }
2a81ab0d 668}