]>
git.ipfire.org Git - people/pmueller/ipfire-2.x.git/blob - config/outgoingfw/outgoingfw.pl
2 ###############################################################################
4 # IPFire.org - A linux based firewall #
5 # Copyright (C) 2009 Michael Tremer & Christian Schmidt #
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 ###############################################################################
24 # enable only the following on debugging purpose
27 require '/var/ipfire/general-functions.pl';
29 my %outfwsettings = ();
33 my $errormessage = "";
46 my $configfile = "/var/ipfire/outgoing/rules";
47 my $p2pfile = "/var/ipfire/outgoing/p2protocols";
49 ### Values that have to be initialized
50 $outfwsettings{'ACTION'} = '';
51 $outfwsettings{'VALID'} = 'yes';
52 $outfwsettings{'EDIT'} = 'no';
53 $outfwsettings{'NAME'} = '';
54 $outfwsettings{'SNET'} = '';
55 $outfwsettings{'SIP'} = '';
56 $outfwsettings{'SPORT'} = '';
57 $outfwsettings{'SMAC'} = '';
58 $outfwsettings{'DIP'} = '';
59 $outfwsettings{'DPORT'} = '';
60 $outfwsettings{'PROT'} = '';
61 $outfwsettings{'STATE'} = '';
62 $outfwsettings{'DISPLAY_DIP'} = '';
63 $outfwsettings{'DISPLAY_DPORT'} = '';
64 $outfwsettings{'DISPLAY_SMAC'} = '';
65 $outfwsettings{'DISPLAY_SIP'} = '';
66 $outfwsettings{'POLICY'} = 'MODE0';
79 &General
::readhash
("${General::swroot}/outgoing/settings", \
%outfwsettings);
80 &General
::readhash
("${General::swroot}/ethernet/settings", \
%netsettings);
82 $netsettings{'RED_DEV'}=`cat /var/ipfire/red/iface`;
83 $netsettings{'RED_IP'}=`cat /var/ipfire/red/local-ipaddress`;
85 open( FILE
, "< $configfile" ) or die "Unable to read $configfile";
89 if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
90 $outfwsettings{'STATE'} = "ALLOW";
93 } elsif ( $outfwsettings{'POLICY'} eq 'MODE2' ) {
94 $outfwsettings{'STATE'} = "DENY";
96 $DO = "DROP -m comment --comment 'DROP_OUTGOINGFW'";
99 ### Initialize IPTables
100 system("/sbin/iptables --flush OUTGOINGFW >/dev/null 2>&1");
101 system("/sbin/iptables --delete-chain OUTGOINGFW >/dev/null 2>&1");
102 system("/sbin/iptables -N OUTGOINGFW >/dev/null 2>&1");
104 if ( $outfwsettings{'POLICY'} eq 'MODE0' ) {
108 if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
109 $CMD = "/sbin/iptables -A OUTGOINGFW -m state --state ESTABLISHED,RELATED -j ACCEPT";
110 if ($DEBUG) { print "$CMD\n"; } else { system("$CMD"); }
111 $CMD = "/sbin/iptables -A OUTGOINGFW -p icmp -j ACCEPT";
112 if ($DEBUG) { print "$CMD\n"; } else { system("$CMD"); }
115 foreach $configentry (sort @configs)
123 @configline = split( /\;/, $configentry );
124 if ($outfwsettings{'STATE'} eq $configline[0]) {
125 if ($configline[2] eq 'green') {
126 $SOURCE = "$netsettings{'GREEN_NETADDRESS'}/$netsettings{'GREEN_NETMASK'}";
127 $DEV = $netsettings{'GREEN_DEV'};
128 } elsif ($configline[2] eq 'red') {
129 $SOURCE = "$netsettings{'RED_IP'}";
131 } elsif ($configline[2] eq 'blue') {
132 $SOURCE = "$netsettings{'BLUE_NETADDRESS'}/$netsettings{'BLUE_NETMASK'}";
133 $DEV = $netsettings{'BLUE_DEV'};
134 } elsif ($configline[2] eq 'orange') {
135 $SOURCE = "$netsettings{'ORANGE_NETADDRESS'}/$netsettings{'ORANGE_NETMASK'}";
136 $DEV = $netsettings{'ORANGE_DEV'};
137 } elsif ($configline[2] eq 'ip') {
138 $SOURCE = "$configline[5]";
145 if ($configline[7]) { $DESTINATION = "$configline[7]"; } else { $DESTINATION = "0/0"; }
147 if ($configline[3] eq 'tcp') {
149 } elsif ($configline[3] eq 'udp') {
151 } elsif ($configline[3] eq 'esp') {
153 } elsif ($configline[3] eq 'gre') {
156 @proto = ("tcp","udp");
160 foreach $PROTO (@proto) {
161 $CMD = "/sbin/iptables -A OUTGOINGFW -s $SOURCE -d $DESTINATION -p $PROTO";
163 if ($configline[8] && $configline[3] ne 'esp' && $configline[3] ne 'gre') {
164 $DPORT = "$configline[8]";
165 $CMD = "$CMD --dport $DPORT";
169 $CMD = "$CMD -i $DEV";
172 if ($configline[6]) {
173 $MAC = "$configline[6]";
174 $CMD = "$CMD -m mac --mac-source $MAC";
177 if ($configline[17] && $configline[18]) {
178 if ($configline[10]){$DAY = "Mon,"}
179 if ($configline[11]){$DAY .= "Tue,"}
180 if ($configline[12]){$DAY .= "Wed,"}
181 if ($configline[13]){$DAY .= "Thu,"}
182 if ($configline[14]){$DAY .= "Fri,"}
183 if ($configline[15]){$DAY .= "Sat,"}
184 if ($configline[16]){$DAY .= "Sun"}
185 $CMD = "$CMD -m time --timestart $configline[17] --timestop $configline[18] --weekdays $DAY";
188 $CMD = "$CMD -o $netsettings{'RED_DEV'}";
190 if ($configline[9] eq "aktiv") {
192 print "$CMD -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW'\n";
194 system("$CMD -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW'");
199 print "$CMD -j $DO\n";
201 system("$CMD -j $DO");
207 ### Do the P2P-Stuff here
208 open( FILE
, "< $p2pfile" ) or die "Unable to read $p2pfile";
212 $CMD = "/sbin/iptables -A OUTGOINGFW -m ipp2p";
214 foreach $p2pentry (sort @p2ps)
216 @p2pline = split( /\;/, $p2pentry );
217 if ( $outfwsettings{'POLICY'} eq 'MODE2' ) {
219 if ("$p2pline[2]" eq "off") {
220 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
224 if ("$p2pline[2]" eq "on") {
225 $P2PSTRING = "$P2PSTRING --$p2pline[1]";
231 print "$CMD $P2PSTRING -j $DO\n";
233 system("$CMD $P2PSTRING -j $DO");
237 if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
238 if ( $outfwsettings{'MODE1LOG'} eq 'on' ) {
239 $CMD = "/sbin/iptables -A OUTGOINGFW -o $netsettings{'RED_DEV'} -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW'";
247 $CMD = "/sbin/iptables -A OUTGOINGFW -o $netsettings{'RED_DEV'} -j DROP -m comment --comment 'DROP_OUTGOINGFW'";