mirror of
https://github.com/vincentmli/bpfire.git
synced 2026-04-25 02:12:58 +02:00
b29a66a52f
To be compatible with old rules all will be translated to tcp and udp like in earlier versions of outgoingfw. So all is not doing what you expect, but if we change this all old rules using all and ports need to be translated to udp or tcp. When using GRE and ESP ports will be ignored.
253 lines
7.5 KiB
Perl
253 lines
7.5 KiB
Perl
#!/usr/bin/perl
|
|
###############################################################################
|
|
# #
|
|
# IPFire.org - A linux based firewall #
|
|
# Copyright (C) 2009 Michael Tremer & Christian Schmidt #
|
|
# #
|
|
# 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 #
|
|
# the Free Software Foundation, either version 3 of the License, or #
|
|
# (at your option) any later version. #
|
|
# #
|
|
# This program is distributed in the hope that it will be useful, #
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
|
|
# GNU General Public License for more details. #
|
|
# #
|
|
# You should have received a copy of the GNU General Public License #
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
|
|
# #
|
|
###############################################################################
|
|
|
|
|
|
use strict;
|
|
# enable only the following on debugging purpose
|
|
#use warnings;
|
|
|
|
require '/var/ipfire/general-functions.pl';
|
|
|
|
my %outfwsettings = ();
|
|
my %checked = ();
|
|
my %selected= () ;
|
|
my %netsettings = ();
|
|
my $errormessage = "";
|
|
my $configentry = "";
|
|
my @configs = ();
|
|
my @configline = ();
|
|
my $p2pentry = "";
|
|
my @p2ps = ();
|
|
my @p2pline = ();
|
|
my @proto = ();
|
|
my $CMD = "";
|
|
my $P2PSTRING = "";
|
|
|
|
my $DEBUG = 0;
|
|
|
|
my $configfile = "/var/ipfire/outgoing/rules";
|
|
my $p2pfile = "/var/ipfire/outgoing/p2protocols";
|
|
|
|
### Values that have to be initialized
|
|
$outfwsettings{'ACTION'} = '';
|
|
$outfwsettings{'VALID'} = 'yes';
|
|
$outfwsettings{'EDIT'} = 'no';
|
|
$outfwsettings{'NAME'} = '';
|
|
$outfwsettings{'SNET'} = '';
|
|
$outfwsettings{'SIP'} = '';
|
|
$outfwsettings{'SPORT'} = '';
|
|
$outfwsettings{'SMAC'} = '';
|
|
$outfwsettings{'DIP'} = '';
|
|
$outfwsettings{'DPORT'} = '';
|
|
$outfwsettings{'PROT'} = '';
|
|
$outfwsettings{'STATE'} = '';
|
|
$outfwsettings{'DISPLAY_DIP'} = '';
|
|
$outfwsettings{'DISPLAY_DPORT'} = '';
|
|
$outfwsettings{'DISPLAY_SMAC'} = '';
|
|
$outfwsettings{'DISPLAY_SIP'} = '';
|
|
$outfwsettings{'POLICY'} = 'MODE0';
|
|
|
|
my $SOURCE = "";
|
|
my $DESTINATION = "";
|
|
my $PROTO = "";
|
|
my $DPORT = "";
|
|
my $DEV = "";
|
|
my $MAC = "";
|
|
my $POLICY = "";
|
|
my $DO = "";
|
|
my $DAY = "";
|
|
|
|
# read files
|
|
&General::readhash("${General::swroot}/outgoing/settings", \%outfwsettings);
|
|
&General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
|
|
|
|
$netsettings{'RED_DEV'}=`cat /var/ipfire/red/iface`;
|
|
$netsettings{'RED_IP'}=`cat /var/ipfire/red/local-ipaddress`;
|
|
|
|
open( FILE, "< $configfile" ) or die "Unable to read $configfile";
|
|
@configs = <FILE>;
|
|
close FILE;
|
|
|
|
if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
|
|
$outfwsettings{'STATE'} = "ALLOW";
|
|
$POLICY = "DROP";
|
|
$DO = "ACCEPT";
|
|
} elsif ( $outfwsettings{'POLICY'} eq 'MODE2' ) {
|
|
$outfwsettings{'STATE'} = "DENY";
|
|
$POLICY = "ACCEPT";
|
|
$DO = "DROP -m comment --comment 'DROP_OUTGOINGFW'";
|
|
}
|
|
|
|
### Initialize IPTables
|
|
system("/sbin/iptables --flush OUTGOINGFW >/dev/null 2>&1");
|
|
system("/sbin/iptables --delete-chain OUTGOINGFW >/dev/null 2>&1");
|
|
system("/sbin/iptables -N OUTGOINGFW >/dev/null 2>&1");
|
|
|
|
if ( $outfwsettings{'POLICY'} eq 'MODE0' ) {
|
|
exit 0
|
|
}
|
|
|
|
if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
|
|
$CMD = "/sbin/iptables -A OUTGOINGFW -m state --state ESTABLISHED,RELATED -j ACCEPT";
|
|
if ($DEBUG) { print "$CMD\n"; } else { system("$CMD"); }
|
|
$CMD = "/sbin/iptables -A OUTGOINGFW -p icmp -j ACCEPT";
|
|
if ($DEBUG) { print "$CMD\n"; } else { system("$CMD"); }
|
|
}
|
|
|
|
foreach $configentry (sort @configs)
|
|
{
|
|
$SOURCE = "";
|
|
$DESTINATION = "";
|
|
$PROTO = "";
|
|
$DPORT = "";
|
|
$DEV = "";
|
|
$MAC = "";
|
|
@configline = split( /\;/, $configentry );
|
|
if ($outfwsettings{'STATE'} eq $configline[0]) {
|
|
if ($configline[2] eq 'green') {
|
|
$SOURCE = "$netsettings{'GREEN_NETADDRESS'}/$netsettings{'GREEN_NETMASK'}";
|
|
$DEV = $netsettings{'GREEN_DEV'};
|
|
} elsif ($configline[2] eq 'red') {
|
|
$SOURCE = "$netsettings{'RED_IP'}";
|
|
$DEV = "";
|
|
} elsif ($configline[2] eq 'blue') {
|
|
$SOURCE = "$netsettings{'BLUE_NETADDRESS'}/$netsettings{'BLUE_NETMASK'}";
|
|
$DEV = $netsettings{'BLUE_DEV'};
|
|
} elsif ($configline[2] eq 'orange') {
|
|
$SOURCE = "$netsettings{'ORANGE_NETADDRESS'}/$netsettings{'ORANGE_NETMASK'}";
|
|
$DEV = $netsettings{'ORANGE_DEV'};
|
|
} elsif ($configline[2] eq 'ip') {
|
|
$SOURCE = "$configline[5]";
|
|
$DEV = "";
|
|
} else {
|
|
$SOURCE = "0/0";
|
|
$DEV = "";
|
|
}
|
|
|
|
if ($configline[7]) { $DESTINATION = "$configline[7]"; } else { $DESTINATION = "0/0"; }
|
|
|
|
if ($configline[3] eq 'tcp') {
|
|
@proto = ("tcp");
|
|
} elsif ($configline[3] eq 'udp') {
|
|
@proto = ("udp");
|
|
} elsif ($configline[3] eq 'esp') {
|
|
@proto = ("esp");
|
|
} elsif ($configline[3] eq 'gre') {
|
|
@proto = ("gre");
|
|
} else {
|
|
@proto = ("tcp","udp");
|
|
}
|
|
|
|
|
|
foreach $PROTO (@proto) {
|
|
$CMD = "/sbin/iptables -A OUTGOINGFW -s $SOURCE -d $DESTINATION -p $PROTO";
|
|
|
|
if ($configline[8] && $configline[3] ne 'esp' && $configline[3] ne 'gre') {
|
|
$DPORT = "$configline[8]";
|
|
$CMD = "$CMD --dport $DPORT";
|
|
}
|
|
|
|
if ($DEV) {
|
|
$CMD = "$CMD -i $DEV";
|
|
}
|
|
|
|
if ($configline[6]) {
|
|
$MAC = "$configline[6]";
|
|
$CMD = "$CMD -m mac --mac-source $MAC";
|
|
}
|
|
|
|
if ($configline[17] && $configline[18]) {
|
|
if ($configline[10]){$DAY = "Mon,"}
|
|
if ($configline[11]){$DAY .= "Tue,"}
|
|
if ($configline[12]){$DAY .= "Wed,"}
|
|
if ($configline[13]){$DAY .= "Thu,"}
|
|
if ($configline[14]){$DAY .= "Fri,"}
|
|
if ($configline[15]){$DAY .= "Sat,"}
|
|
if ($configline[16]){$DAY .= "Sun"}
|
|
$CMD = "$CMD -m time --timestart $configline[17] --timestop $configline[18] --weekdays $DAY";
|
|
}
|
|
|
|
$CMD = "$CMD -o $netsettings{'RED_DEV'}";
|
|
|
|
if ($configline[9] eq "aktiv") {
|
|
if ($DEBUG) {
|
|
print "$CMD -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW'\n";
|
|
} else {
|
|
system("$CMD -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW'");
|
|
}
|
|
}
|
|
|
|
if ($DEBUG) {
|
|
print "$CMD -j $DO\n";
|
|
} else {
|
|
system("$CMD -j $DO");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
### Do the P2P-Stuff here
|
|
open( FILE, "< $p2pfile" ) or die "Unable to read $p2pfile";
|
|
@p2ps = <FILE>;
|
|
close FILE;
|
|
|
|
$CMD = "/sbin/iptables -A OUTGOINGFW -m ipp2p";
|
|
|
|
foreach $p2pentry (sort @p2ps)
|
|
{
|
|
@p2pline = split( /\;/, $p2pentry );
|
|
if ( $outfwsettings{'POLICY'} eq 'MODE2' ) {
|
|
$DO = "DROP";
|
|
if ("$p2pline[2]" eq "off") {
|
|
$P2PSTRING = "$P2PSTRING --$p2pline[1]";
|
|
}
|
|
} else {
|
|
$DO = "ACCEPT";
|
|
if ("$p2pline[2]" eq "on") {
|
|
$P2PSTRING = "$P2PSTRING --$p2pline[1]";
|
|
}
|
|
}
|
|
}
|
|
if ($P2PSTRING) {
|
|
if ($DEBUG) {
|
|
print "$CMD $P2PSTRING -j $DO\n";
|
|
} else {
|
|
system("$CMD $P2PSTRING -j $DO");
|
|
}
|
|
}
|
|
|
|
if ( $outfwsettings{'POLICY'} eq 'MODE1' ) {
|
|
if ( $outfwsettings{'MODE1LOG'} eq 'on' ) {
|
|
$CMD = "/sbin/iptables -A OUTGOINGFW -o $netsettings{'RED_DEV'} -m limit --limit 10/minute -j LOG --log-prefix 'DROP_OUTGOINGFW'";
|
|
if ($DEBUG) {
|
|
print "$CMD\n";
|
|
} else {
|
|
system("$CMD");
|
|
}
|
|
}
|
|
|
|
$CMD = "/sbin/iptables -A OUTGOINGFW -o $netsettings{'RED_DEV'} -j DROP -m comment --comment 'DROP_OUTGOINGFW'";
|
|
if ($DEBUG) {
|
|
print "$CMD\n";
|
|
} else {
|
|
system("$CMD");
|
|
}
|
|
} |