mirror of
https://github.com/vincentmli/bpfire.git
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70df830214
git-svn-id: http://svn.ipfire.org/svn/ipfire/trunk@853 ea5c0bd1-69bd-2848-81d8-4f18e57aeed8
423 lines
15 KiB
Perl
423 lines
15 KiB
Perl
#!/usr/bin/perl
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###############################################################################
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# #
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# IPFire.org - A linux based firewall #
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# Copyright (C) 2007 Michael Tremer & Christian Schmidt #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <http://www.gnu.org/licenses/>. #
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# #
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###############################################################################
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my @network=();
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my @masklen=();
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my @colour=();
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use Net::IPv4Addr qw( :all );
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use strict;
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# enable only the following on debugging purpose
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#use warnings;
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#use CGI::Carp 'fatalsToBrowser';
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require '/var/ipfire/general-functions.pl';
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require "${General::swroot}/lang.pl";
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require "${General::swroot}/header.pl";
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#workaround to suppress a warning when a variable is used only once
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my @dummy = ( ${Header::table1colour} );
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undef (@dummy);
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# Read various files
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my %netsettings=();
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&General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
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open (ACTIVE, 'iptstate -1rbt |') or die 'Unable to open ip_conntrack';
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my @active = <ACTIVE>;
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close (ACTIVE);
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my @vpn = ` route -n | grep ipsec | awk '{ print \$1" "\$3}'`;
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foreach my $route (@vpn) {
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chomp($route);
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my @temp = split(/[\t ]+/, $route);
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push(@network, $temp[0]);
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push(@masklen, $temp[1]);
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push(@colour, ${Header::colourvpn} );
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}
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my $aliasfile = "${General::swroot}/ethernet/aliases";
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open(ALIASES, $aliasfile) or die 'Unable to open aliases file.';
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my @aliases = <ALIASES>;
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close(ALIASES);
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# Add Green Firewall Interface
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push(@network, $netsettings{'GREEN_ADDRESS'});
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push(@masklen, "255.255.255.255" );
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push(@colour, ${Header::colourfw} );
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# Add Green Network to Array
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push(@network, $netsettings{'GREEN_NETADDRESS'});
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push(@masklen, $netsettings{'GREEN_NETMASK'} );
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push(@colour, ${Header::colourgreen} );
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# Add Green Routes to Array
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my @routes = `/sbin/route -n | /bin/grep $netsettings{'GREEN_DEV'}`;
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foreach my $route (@routes) {
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chomp($route);
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my @temp = split(/[\t ]+/, $route);
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push(@network, $temp[0]);
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push(@masklen, $temp[2]);
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push(@colour, ${Header::colourgreen} );
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}
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# Add Firewall Localhost 127.0.0.1
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push(@network, '127.0.0.1');
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push(@masklen, '255.255.255.255' );
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push(@colour, ${Header::colourfw} );
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# Add Orange Network
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if ($netsettings{'ORANGE_DEV'}) {
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push(@network, $netsettings{'ORANGE_NETADDRESS'});
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push(@masklen, $netsettings{'ORANGE_NETMASK'} );
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push(@colour, ${Header::colourorange} );
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# Add Orange Routes to Array
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@routes = `/sbin/route -n | /bin/grep $netsettings{'ORANGE_DEV'}`;
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foreach my $route (@routes) {
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chomp($route);
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my @temp = split(/[\t ]+/, $route);
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push(@network, $temp[0]);
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push(@masklen, $temp[2]);
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push(@colour, ${Header::colourorange} );
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}
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}
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# Add Blue Firewall Interface
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push(@network, $netsettings{'BLUE_ADDRESS'});
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push(@masklen, "255.255.255.255" );
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push(@colour, ${Header::colourfw} );
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# Add Blue Network
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if ($netsettings{'BLUE_DEV'}) {
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push(@network, $netsettings{'BLUE_NETADDRESS'});
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push(@masklen, $netsettings{'BLUE_NETMASK'} );
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push(@colour, ${Header::colourblue} );
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# Add Blue Routes to Array
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@routes = `/sbin/route -n | /bin/grep $netsettings{'BLUE_DEV'}`;
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foreach my $route (@routes) {
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chomp($route);
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my @temp = split(/[\t ]+/, $route);
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push(@network, $temp[0]);
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push(@masklen, $temp[2]);
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push(@colour, ${Header::colourblue} );
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}
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}
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# Add OpenVPN net and RED/BLUE/ORANGE entry (when appropriate)
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if (-e "${General::swroot}/ovpn/settings") {
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my %ovpnsettings = ();
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&General::readhash("${General::swroot}/ovpn/settings", \%ovpnsettings);
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my @tempovpnsubnet = split("\/",$ovpnsettings{'DOVPN_SUBNET'});
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# add OpenVPN net
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push(@network, $tempovpnsubnet[0]);
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push(@masklen, $tempovpnsubnet[1]);
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push(@colour, ${Header::colourovpn} );
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if ( ($ovpnsettings{'ENABLED_BLUE'} eq 'on') && $netsettings{'BLUE_DEV'} ) {
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# add BLUE:port / proto
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push(@network, $netsettings{'BLUE_ADDRESS'} );
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push(@masklen, '255.255.255.255' );
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push(@colour, ${Header::colourovpn} );
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}
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if ( ($ovpnsettings{'ENABLED_ORANGE'} eq 'on') && $netsettings{'ORANGE_DEV'} ) {
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# add ORANGE:port / proto
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push(@network, $netsettings{'ORANGE_ADDRESS'} );
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push(@masklen, '255.255.255.255' );
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push(@colour, ${Header::colourovpn} );
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}
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}
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# Add STATIC RED aliases
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if ($netsettings{'RED_DEV'}) {
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# We have a RED eth iface
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if ($netsettings{'RED_TYPE'} eq 'STATIC') {
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# We have a STATIC RED eth iface
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foreach my $line (@aliases)
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{
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chomp($line);
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my @temp = split(/\,/,$line);
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if ( $temp[0] ) {
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push(@network, $temp[0]);
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push(@masklen, $netsettings{'RED_NETMASK'} );
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push(@colour, ${Header::colourfw} );
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}
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}
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}
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}
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# Add VPNs
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if ( $vpn[0] ne 'none' ) {
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foreach my $line (@vpn) {
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my @temp = split(/[\t ]+/,$line);
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my @temp1 = split(/[\/:]+/,$temp[3]);
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push(@network, $temp1[0]);
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push(@masklen, ipv4_cidr2msk($temp1[1]));
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push(@colour, ${Header::colourvpn} );
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}
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}
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if (open(IP, "${General::swroot}/red/local-ipaddress")) {
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my $redip = <IP>;
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close(IP);
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chomp $redip;
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push(@network, $redip);
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push(@masklen, '255.255.255.255' );
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push(@colour, ${Header::colourfw} );
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}
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#Establish simple filtering&sorting boxes on top of table
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our %cgiparams;
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&Header::getcgihash(\%cgiparams);
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my @list_proto = ($Lang::tr{'all'}, 'icmp', 'udp', 'tcp');
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my @list_state = ($Lang::tr{'all'}, 'SYN_SENT', 'SYN_RECV', 'ESTABLISHED', 'FIN_WAIT',
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'CLOSE_WAIT', 'LAST_ACK', 'TIME_WAIT', 'CLOSE', 'LISTEN');
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my @list_mark = ($Lang::tr{'all'}, '[ASSURED]', '[UNREPLIED]');
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my @list_sort = ('orgsip','protocol', 'expires', 'status', 'orgdip', 'orgsp',
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'orgdp', 'exsip', 'exdip', 'exsp', 'exdp', 'marked');
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# init or silently correct unknown value...
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if ( ! grep ( /^$cgiparams{'SEE_PROTO'}$/ , @list_proto )) { $cgiparams{'SEE_PROTO'} = $list_proto[0] };
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if ( ! grep ( /^$cgiparams{'SEE_STATE'}$/ , @list_state )) { $cgiparams{'SEE_STATE'} = $list_state[0] };
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if ( ($cgiparams{'SEE_MARK'} ne $Lang::tr{'all'}) && # ok the grep should work but it doesn't because of
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($cgiparams{'SEE_MARK'} ne '[ASSURED]') && # the '[' & ']' interpreted as list separator.
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($cgiparams{'SEE_MARK'} ne '[UNREPLIED]') # So, explicitly enumerate items.
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) { $cgiparams{'SEE_MARK'} = $list_mark[0] };
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if ( ! grep ( /^$cgiparams{'SEE_SORT'}$/ , @list_sort )) { $cgiparams{'SEE_SORT'} = $list_sort[0] };
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# *.*.*.* or a valid IP
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if ( $cgiparams{'SEE_SRC'} !~ /^(\*\.\*\.\*\.\*\.|\d+\.\d+\.\d+\.\d+)$/) { $cgiparams{'SEE_SRC'} = '*.*.*.*' };
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if ( $cgiparams{'SEE_DEST'} !~ /^(\*\.\*\.\*\.\*\.|\d+\.\d+\.\d+\.\d+)$/) { $cgiparams{'SEE_DEST'} = '*.*.*.*' };
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our %entries = (); # will hold the lines analyzed correctly
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my $unknownlines = ''; # should be empty all the time...
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my $index = 0; # just a counter to make unique entryies in entries
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&Header::showhttpheaders();
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&Header::openpage($Lang::tr{'connections'}, 1, '');
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&Header::openbigbox('100%', 'left');
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&Header::openbox('100%', 'left', $Lang::tr{'connection tracking'});
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# Build listbox objects
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my $menu_proto = &make_select ('SEE_PROTO', $cgiparams{'SEE_PROTO'}, @list_proto);
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my $menu_state = &make_select ('SEE_STATE', $cgiparams{'SEE_STATE'}, @list_state);
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print <<END
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<form method='post' action='$ENV{'SCRIPT_NAME'}'>
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<table width='100%'>
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<tr><td align='center'><b>$Lang::tr{'legend'} : </b></td>
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<td align='center' bgcolor='${Header::colourgreen}'><b><font color='#FFFFFF'>$Lang::tr{'lan'}</font></b></td>
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<td align='center' bgcolor='${Header::colourred}'><b><font color='#FFFFFF'>$Lang::tr{'internet'}</font></b></td>
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<td align='center' bgcolor='${Header::colourorange}'><b><font color='#FFFFFF'>$Lang::tr{'dmz'}</font></b></td>
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<td align='center' bgcolor='${Header::colourblue}'><b><font color='#FFFFFF'>$Lang::tr{'wireless'}</font></b></td>
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<td align='center' bgcolor='${Header::colourfw}'><b><font color='#FFFFFF'>IPFire</font></b></td>
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<td align='center' bgcolor='${Header::colourvpn}'><b><font color='#FFFFFF'>$Lang::tr{'vpn'}</font></b></td>
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<td align='center' bgcolor='${Header::colourovpn}'><b><font color='#FFFFFF'>$Lang::tr{'OpenVPN'}</font></b></td>
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</tr>
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</table>
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<br />
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<table width='100%'>
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<tr><td align='center'><font size=2>$Lang::tr{'source ip and port'}</font></td>
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<td> </td>
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<td align='center'><font size=2>$Lang::tr{'dest ip and port'}</font></td>
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<td> </td>
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<td align='center'><font size=2>$Lang::tr{'protocol'}</font></td>
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<td align='center'><font size=2>$Lang::tr{'connection'}<br></br>$Lang::tr{'status'}</font></td>
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<td align='center'><font size=2>$Lang::tr{'expires'}<br></br>($Lang::tr{'seconds'})</font></td>
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</tr>
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<tr><td colspan='4'> </td>
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<td align='center'>$menu_proto</td>
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<td align='center'>$menu_state</td>
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<td> </td>
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</tr>
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<tr>
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<td align='center' colspan='7'></td>
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</tr>
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<tr>
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<td align='center' colspan='7'><input type='submit' value="$Lang::tr{'update'}" /></td>
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</tr>
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END
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;
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my $i=0;
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foreach my $line (@active) {
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$i++;
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if ($i < 3) {
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next;
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}
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chomp($line);
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my @temp = split(' ',$line);
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my ($sip, $sport) = split(':', $temp[0]);
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my ($dip, $dport) = split(':', $temp[1]);
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my $proto = $temp[2];
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my $state; my $ttl;
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if ( $proto eq "esp" ){$state = "";$ttl = $temp[3];}
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elsif ( $proto eq "icmp" ){$state = "";$ttl = $temp[4];}
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else{$state = $temp[3];$ttl = $temp[4];}
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next if( !(
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(($cgiparams{'SEE_PROTO'} eq $Lang::tr{'all'}) || ($proto eq $cgiparams{'SEE_PROTO'} ))
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&& (($cgiparams{'SEE_STATE'} eq $Lang::tr{'all'}) || ($state eq $cgiparams{'SEE_STATE'} ))
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&& (($cgiparams{'SEE_SRC'} eq "*.*.*.*") || ($sip eq $cgiparams{'SEE_SRC'} ))
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&& (($cgiparams{'SEE_DEST'} eq "*.*.*.*") || ($dip eq $cgiparams{'SEE_DEST'} ))
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));
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if (($proto eq 'udp') && ($ttl eq '')) {
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$ttl = $state;
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$state = ' ';
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}
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my $sipcol = ipcolour($sip);
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my $dipcol = ipcolour($dip);
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my $sserv = '';
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if ($sport < 1024) {
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$sserv = uc(getservbyport($sport, lc($proto)));
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if ($sserv ne '') {
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$sserv = " ($sserv)";
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}
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}
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my $dserv = '';
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if ($dport < 1024) {
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$dserv = uc(getservbyport($dport, lc($proto)));
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if ($dserv ne '') {
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$dserv = " ($dserv)";
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}
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}
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print <<END
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<tr >
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<td align='center' bgcolor='$sipcol'>
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<a href='/cgi-bin/ipinfo.cgi?ip=$sip'>
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<font color='#FFFFFF'>$sip</font>
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</a>
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</td>
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<td align='center' bgcolor='$sipcol'>
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<a href='http://isc.sans.org/port_details.php?port=$sport' target='top'>
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<font color='#FFFFFF'>$sport$sserv</font>
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</a>
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</td>
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<td align='center' bgcolor='$dipcol'>
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<a href='/cgi-bin/ipinfo.cgi?ip=$dip'>
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<font color='#FFFFFF'>$dip</font>
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</a>
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</td>
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<td align='center' bgcolor='$dipcol'>
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<a href='http://isc.sans.org/port_details.php?port=$dport' target='top'>
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<font color='#FFFFFF'>$dport$dserv</font>
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</a>
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</td>
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<td align='center'>$proto</td>
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<td align='center'>$state</td>
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<td align='center'>$ttl</td>
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</tr>
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END
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;
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}
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print "</table></form>";
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&Header::closebox();
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&Header::closebigbox();
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&Header::closepage();
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sub ipcolour($) {
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my $id = 0;
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my $line;
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my $colour = ${Header::colourred};
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my ($ip) = $_[0];
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my $found = 0;
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foreach $line (@network) {
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if ($network[$id] eq '') {
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$id++;
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} else {
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if (!$found && ipv4_in_network( $network[$id] , $masklen[$id], $ip) ) {
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$found = 1;
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$colour = $colour[$id];
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}
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$id++;
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}
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}
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return $colour
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}
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# Create a string containing a complete SELECT html object
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# param1: name
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# param2: current value selected
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# param3: field list
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sub make_select ($,$,$) {
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my $select_name = shift;
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my $selected = shift;
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my $select = "<select name='$select_name'>";
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foreach my $value (@_) {
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my $check = $selected eq $value ? "selected='selected'" : '';
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$select .= "<option $check value='$value'>$value</option>";
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}
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$select .= "</select>";
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return $select;
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}
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# Build a list of IP obtained from the %entries hash
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# param1: IP field name
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sub get_known_ips ($) {
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my $field = shift;
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my $qs = $cgiparams{'SEE_SORT'}; # switch the sort order
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$cgiparams{'SEE_SORT'} = $field;
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my @liste=('*.*.*.*');
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foreach my $entry ( sort sort_entries keys %entries) {
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push (@liste, $entries{$entry}->{$field}) if (! grep (/^$entries{$entry}->{$field}$/,@liste) );
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}
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$cgiparams{'SEE_SORT'} = $qs; #restore sort order
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return @liste;
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}
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# Used to sort the table containing the lines displayed.
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sub sort_entries { #Reverse is not implemented
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my $qs=$cgiparams{'SEE_SORT'};
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if ($qs =~ /orgsip|orgdip|exsip|exdip/) {
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my @a = split(/\./,$entries{$a}->{$qs});
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my @b = split(/\./,$entries{$b}->{$qs});
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($a[0]<=>$b[0]) ||
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($a[1]<=>$b[1]) ||
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($a[2]<=>$b[2]) ||
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($a[3]<=>$b[3]);
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} elsif ($qs =~ /expire|orgsp|orgdp|exsp|exdp/) {
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$entries{$a}->{$qs} <=> $entries{$b}->{$qs};
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} else {
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$entries{$a}->{$qs} cmp $entries{$b}->{$qs};
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}
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}
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1;
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