mirror of
https://github.com/vincentmli/bpfire.git
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d68ead3dec
This is necessary because commit bf1985fae5baca327fcded31264f45638442f02e changes the place where temporary files from 'iptables' are stored. Some typos where fixed, too. Best, Matthias Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
1138 lines
36 KiB
Perl
1138 lines
36 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) 2016 IPFire Team <info@ipfire.org> #
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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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use strict;
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use Locale::Codes::Country;
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use Guardian::Socket;
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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 = (
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${Header::colourred},
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${Header::colourgreen}
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);
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undef (@dummy);
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my $string=();
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my $memory=();
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my @memory=();
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my @pid=();
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my @guardian=();
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# Path to the guardian.ignore file.
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my $ignorefile ='/var/ipfire/guardian/guardian.ignore';
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# Hash which contains the supported modules and the
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# file locations on IPFire systems.
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my %module_file_locations = (
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"HTTPD" => "/var/log/httpd/error_log",
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"OWNCLOUD" => "/var/owncloud/data/owncloud.log",
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"SNORT" => "/var/log/snort/alert",
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"SSH" => "/var/log/messages",
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);
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our %netsettings = ();
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&General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
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our %color = ();
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our %mainsettings = ();
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&General::readhash("${General::swroot}/main/settings", \%mainsettings);
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&General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
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# Pakfire meta file for owncloud.
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# (File exists when the addon is installed.)
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my $owncloud_meta = "/opt/pakfire/db/installed/meta-owncloud";
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# File declarations.
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my $settingsfile = "${General::swroot}/guardian/settings";
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my $ignoredfile = "${General::swroot}/guardian/ignored";
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# Create empty settings and ignoredfile if they do not exist yet.
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unless (-e "$settingsfile") { system("touch $settingsfile"); }
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unless (-e "$ignoredfile") { system("touch $ignoredfile"); }
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our %settings = ();
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our %ignored = ();
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$settings{'ACTION'} = '';
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$settings{'GUARDIAN_ENABLED'} = 'off';
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$settings{'GUARDIAN_MONITOR_SNORT'} = 'on';
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$settings{'GUARDIAN_MONITOR_SSH'} = 'on';
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$settings{'GUARDIAN_MONITOR_HTTPD'} = 'on';
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$settings{'GUARDIAN_MONITOR_OWNCLOUD'} = '';
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$settings{'GUARDIAN_LOG_FACILITY'} = 'syslog';
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$settings{'GUARDIAN_LOGLEVEL'} = 'info';
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$settings{'GUARDIAN_BLOCKCOUNT'} = '3';
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$settings{'GUARDIAN_BLOCKTIME'} = '86400';
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$settings{'GUARDIAN_FIREWALL_ACTION'} = 'DROP';
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$settings{'GUARDIAN_LOGFILE'} = '/var/log/guardian/guardian.log';
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$settings{'GUARDIAN_SNORT_PRIORITY_LEVEL'} = '3';
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# Default settings for owncloud if installed.
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if ( -e "$owncloud_meta") {
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$settings{'GUARDIAN_MONITOR_OWNCLOUD'} = 'off';
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}
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my $errormessage = '';
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&Header::showhttpheaders();
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# Get GUI values.
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&Header::getcgihash(\%settings);
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# Check if guardian is running and grab some stats.
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&daemonstats();
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my $pid = $pid[0];
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## Perform input checks and save settings.
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#
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if ($settings{'ACTION'} eq $Lang::tr{'save'}) {
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# Check for valid blocktime.
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unless(($settings{'GUARDIAN_BLOCKTIME'} =~ /^\d+$/) && ($settings{'GUARDIAN_BLOCKTIME'} ne "0")) {
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$errormessage = "$Lang::tr{'guardian invalid blocktime'}";
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}
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# Check if the blockcount is valid.
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unless(($settings{'GUARDIAN_BLOCKCOUNT'} =~ /^\d+$/) && ($settings{'GUARDIAN_BLOCKCOUNT'} ne "0")) {
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$errormessage = "$Lang::tr{'guardian invalid blockcount'}";
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}
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# Check Logfile.
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unless($settings{'GUARDIAN_LOGFILE'} =~ /^[a-zA-Z0-9\.\/]+$/) {
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$errormessage = "$Lang::tr{'guardian invalid logfile'}";
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}
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# Only continue if no error message has been set.
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if($errormessage eq '') {
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# Write configuration settings to file.
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&General::writehash("${General::swroot}/guardian/settings", \%settings);
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# Update configuration files.
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&BuildConfiguration();
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}
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## Add/edit an entry to the ignore file.
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#
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} elsif (($settings{'ACTION'} eq $Lang::tr{'add'}) || ($settings{'ACTION'} eq $Lang::tr{'update'})) {
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# Check if any input has been performed.
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if ($settings{'IGNORE_ENTRY_ADDRESS'} ne '') {
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# Check if the given input is no valid IP-address or IP-address with subnet, display an error message.
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if ((!&General::validip($settings{'IGNORE_ENTRY_ADDRESS'})) && (!&General::validipandmask($settings{'IGNORE_ENTRY_ADDRESS'}))) {
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$errormessage = "$Lang::tr{'guardian invalid address or subnet'}";
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}
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} else {
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$errormessage = "$Lang::tr{'guardian empty input'}";
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}
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# Go further if there was no error.
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if ($errormessage eq '') {
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my %ignored = ();
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my $id;
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my $status;
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# Assign hash values.
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my $new_entry_address = $settings{'IGNORE_ENTRY_ADDRESS'};
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my $new_entry_remark = $settings{'IGNORE_ENTRY_REMARK'};
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# Read-in ignoredfile.
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&General::readhasharray($ignoredfile, \%ignored);
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# Check if we should edit an existing entry and got an ID.
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if (($settings{'ACTION'} eq $Lang::tr{'update'}) && ($settings{'ID'})) {
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# Assin the provided id.
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$id = $settings{'ID'};
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# Undef the given ID.
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undef($settings{'ID'});
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# Grab the configured status of the corresponding entry.
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$status = $ignored{$id}[2];
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} else {
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# Each newly added entry automatically should be enabled.
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$status = "enabled";
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# Generate the ID for the new entry.
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#
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# Sort the keys by their ID and store them in an array.
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my @keys = sort { $a <=> $b } keys %ignored;
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# Reverse the key array.
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my @reversed = reverse(@keys);
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# Obtain the last used id.
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my $last_id = @reversed[0];
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# Increase the last id by one and use it as id for the new entry.
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$id = ++$last_id;
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}
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# Add/Modify the entry to/in the ignored hash.
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$ignored{$id} = ["$new_entry_address", "$new_entry_remark", "$status"];
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# Write the changed ignored hash to the ignored file.
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&General::writehasharray($ignoredfile, \%ignored);
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# Regenerate the ignore file.
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&GenerateIgnoreFile();
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}
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# Check if guardian is running.
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if ($pid > 0) {
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# Send reload command through socket connection.
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&Guardian::Socket::Client("reload-ignore-list");
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}
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## Toggle Enabled/Disabled for an existing entry on the ignore list.
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#
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} elsif ($settings{'ACTION'} eq $Lang::tr{'toggle enable disable'}) {
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my %ignored = ();
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# Only go further, if an ID has been passed.
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if ($settings{'ID'}) {
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# Assign the given ID.
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my $id = $settings{'ID'};
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# Undef the given ID.
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undef($settings{'ID'});
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# Read-in ignoredfile.
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&General::readhasharray($ignoredfile, \%ignored);
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# Grab the configured status of the corresponding entry.
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my $status = $ignored{$id}[2];
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# Switch the status.
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if ($status eq "disabled") {
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$status = "enabled";
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} else {
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$status = "disabled";
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}
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# Modify the status of the existing entry.
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$ignored{$id} = ["$ignored{$id}[0]", "$ignored{$id}[1]", "$status"];
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# Write the changed ignored hash to the ignored file.
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&General::writehasharray($ignoredfile, \%ignored);
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# Regenerate the ignore file.
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&GenerateIgnoreFile();
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# Check if guardian is running.
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if ($pid > 0) {
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# Send reload command through socket connection.
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&Guardian::Socket::Client("reload-ignore-list");
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}
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}
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## Remove entry from ignore list.
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#
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} elsif ($settings{'ACTION'} eq $Lang::tr{'remove'}) {
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my %ignored = ();
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# Read-in ignoredfile.
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&General::readhasharray($ignoredfile, \%ignored);
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# Drop entry from the hash.
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delete($ignored{$settings{'ID'}});
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# Undef the given ID.
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undef($settings{'ID'});
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# Write the changed ignored hash to the ignored file.
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&General::writehasharray($ignoredfile, \%ignored);
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# Regenerate the ignore file.
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&GenerateIgnoreFile();
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# Check if guardian is running.
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if ($pid > 0) {
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# Send reload command through socket connection.
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&Guardian::Socket::Client("reload-ignore-list");
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}
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## Block a user given address or subnet.
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#
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} elsif ($settings{'ACTION'} eq $Lang::tr{'block'}) {
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# Assign some temporary variables used for input validation.
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my $input = $settings{'ADDRESS_BLOCK'};
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my $green = $netsettings{'GREEN_ADDRESS'};
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my $blue = $netsettings{'BLUE_ADDRESS'};
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my $orange = $netsettings{'ORANGE_ADDRESS'};
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my $red = $netsettings{'RED_ADDRESS'};
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# File declarations.
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my $gatewayfile = "${General::swroot}/red/remote-ipaddress";
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my $dns1file = "${General::swroot}/red/dns1";
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my $dns2file = "${General::swroot}/red/dns2";
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# Get gateway address.
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my $gateway = &_get_address_from_file($gatewayfile);
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# Get addresses from the used dns servers.
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my $dns1 = &_get_address_from_file($dns1file);
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my $dns2 = &_get_address_from_file($dns2file);
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# Check if any input has been performed.
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if ($input eq '') {
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$errormessage = "$Lang::tr{'guardian empty input'}";
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}
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# Check if the given input is localhost (127.0.0.1).
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elsif ($input eq "127.0.0.1") {
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$errormessage = "$Lang::tr{'guardian blocking of this address is not allowed'}";
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}
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# Check if the given input is anywhere (0.0.0.0).
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elsif ($input eq "0.0.0.0") {
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$errormessage = "$Lang::tr{'guardian blocking of this address is not allowed'}";
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}
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# Check if the given input is one of the interface addresses or our gateway.
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elsif ($input eq "$green" || $input eq "$blue" || $input eq "$orange" || $input eq "$red" || $input eq "$gateway" || $input eq "$dns1" || $input eq "$dns2") {
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$errormessage = "$Lang::tr{'guardian blocking of this address is not allowed'}";
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}
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# Check if the given input is a valid IP address.
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elsif (!&General::validip($input)) {
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$errormessage = "$Lang::tr{'guardian invalid address or subnet'}";
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}
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# Go further if there was no error.
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if ($errormessage eq '') {
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my $block = $settings{'ADDRESS_BLOCK'};
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# Send command to block the specified address through socket connection.
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&Guardian::Socket::Client("block $block");
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}
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## Unblock address or subnet.
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#
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} elsif ($settings{'ACTION'} eq $Lang::tr{'unblock'}) {
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# Check if no empty input has been performed.
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if ($settings{'ADDRESS_UNBLOCK'} ne '') {
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# Check if the given input is no valid IP-address or IP-address with subnet, display an error message.
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if ((!&General::validip($settings{'ADDRESS_UNBLOCK'})) && (!&General::validipandmask($settings{'ADDRESS_UNBLOCK'}))) {
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$errormessage = "$Lang::tr{'guardian invalid address or subnet'}";
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}
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} else {
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$errormessage = "$Lang::tr{'guardian empty input'}";
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}
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# Go further if there was no error.
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if ($errormessage eq '') {
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my $unblock = $settings{'ADDRESS_UNBLOCK'};
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# Send command to unblock the given address through socket connection.
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&Guardian::Socket::Client("unblock $unblock");
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}
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## Unblock all.
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#
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} elsif ($settings{'ACTION'} eq $Lang::tr{'unblock all'}) {
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# Send flush command through socket connection.
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&Guardian::Socket::Client("flush");
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}
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# Load settings from files.
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&General::readhash("${General::swroot}/guardian/settings", \%settings);
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&General::readhasharray("${General::swroot}/guardian/ignored", \%ignored);
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# Call functions to generate whole page.
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&showMainBox();
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&showIgnoreBox();
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# Display area only if guardian is running.
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if ( ($memory != 0) && ($pid > 0) ) {
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&showBlockedBox();
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}
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# Function to display the status of guardian and allow base configuration.
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sub showMainBox() {
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my %checked = ();
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my %selected = ();
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$checked{'GUARDIAN_ENABLED'}{'on'} = '';
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$checked{'GUARDIAN_ENABLED'}{'off'} = '';
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$checked{'GUARDIAN_ENABLED'}{$settings{'GUARDIAN_ENABLED'}} = 'checked';
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$checked{'GUARDIAN_MONITOR_SNORT'}{'off'} = '';
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$checked{'GUARDIAN_MONITOR_SNORT'}{'on'} = '';
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$checked{'GUARDIAN_MONITOR_SNORT'}{$settings{'GUARDIAN_MONITOR_SNORT'}} = "checked='checked'";
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$checked{'GUARDIAN_MONITOR_SSH'}{'off'} = '';
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$checked{'GUARDIAN_MONITOR_SSH'}{'on'} = '';
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$checked{'GUARDIAN_MONITOR_SSH'}{$settings{'GUARDIAN_MONITOR_SSH'}} = "checked='checked'";
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$checked{'GUARDIAN_MONITOR_HTTPD'}{'off'} = '';
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$checked{'GUARDIAN_MONITOR_HTTPD'}{'on'} = '';
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$checked{'GUARDIAN_MONITOR_HTTPD'}{$settings{'GUARDIAN_MONITOR_HTTPD'}} = "checked='checked'";
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$checked{'GUARDIAN_MONITOR_OWNCLOUD'}{'off'} = '';
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$checked{'GUARDIAN_MONITOR_OWNCLOUD'}{'on'} = '';
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$checked{'GUARDIAN_MONITOR_OWNCLOUD'}{$settings{'GUARDIAN_MONITOR_OWNCLOUD'}} = "checked='checked'";
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$selected{'GUARDIAN_LOG_FACILITY'}{$settings{'GUARDIAN_LOG_FACILITY'}} = 'selected';
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$selected{'GUARDIAN_LOGLEVEL'}{$settings{'GUARDIAN_LOGLEVEL'}} = 'selected';
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$selected{'GUARDIAN_SNORT_PRIORITY_LEVEL'}{$settings{'GUARDIAN_SNORT_PRIORITY_LEVEL'}} = 'selected';
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$selected{'GUARDIAN_FIREWALL_ACTION'}{$settings{'GUARDIAN_FIREWALL_ACTION'}} = 'selected';
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&Header::openpage($Lang::tr{'guardian configuration'}, 1, '');
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&Header::openbigbox('100%', 'left', '', $errormessage);
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# Print errormessage if there is one.
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if ($errormessage) {
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&Header::openbox('100%', 'left', $Lang::tr{'error messages'});
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print "<font class='base'>$errormessage </font>\n";
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&Header::closebox();
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}
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### Java Script ###
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print<<END;
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<script>
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var update_options = function() {
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var logfacility = \$("#GUARDIAN_LOG_FACILITY").val();
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var loglevel = \$("#GUARDIAN_LOGLEVEL").val();
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if (logfacility === undefined)
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return;
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if (loglevel === undefined)
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return;
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// Show / Hide input for specifying the path to the logfile.
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if (logfacility === "file") {
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\$(".GUARDIAN_LOGFILE").show();
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} else {
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\$(".GUARDIAN_LOGFILE").hide();
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}
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// Show / Hide loglevel debug if the facility is set to syslog.
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if (logfacility === "syslog") {
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\$("#loglevel_debug").hide();
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} else {
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\$("#loglevel_debug").show();
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}
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// Show / Hide logfacility syslog if the loglevel is set to debug.
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if (loglevel === "debug") {
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\$("#logfacility_syslog").hide();
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} else {
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\$("#logfacility_syslog").show();
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}
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};
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\$(document).ready(function() {
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\$("#GUARDIAN_LOG_FACILITY").change(update_options);
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\$("#GUARDIAN_LOGLEVEL").change(update_options);
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update_options();
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// Show / Hide snort priority level option, based if
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// snort is enabled / disabled.
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if (\$('input[name=GUARDIAN_MONITOR_SNORT]:checked').val() == 'on') {
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\$('.GUARDIAN_SNORT_PRIORITY_LEVEL').show();
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} else {
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\$('.GUARDIAN_SNORT_PRIORITY_LEVEL').hide();
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}
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// Show/Hide snort priority level when GUARDIAN_MONITOR_SNORT get changed.
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\$('input[name=GUARDIAN_MONITOR_SNORT]').change(function() {
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\$('.GUARDIAN_SNORT_PRIORITY_LEVEL').toggle();
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});
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});
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</script>
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END
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# Draw current guardian state.
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&Header::openbox('100%', 'center', $Lang::tr{'guardian'});
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# Get current status of guardian.
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&daemonstats();
|
|
$pid = $pid[0];
|
|
|
|
# Display some useful information related to guardian, if daemon is running.
|
|
if ( ($memory != 0) && ($pid > 0) ){
|
|
print <<END;
|
|
<table width='95%' cellspacing='0' class='tbl'>
|
|
<tr>
|
|
<th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'guardian service'}</strong></th>
|
|
</tr>
|
|
<tr>
|
|
<td class='base'>$Lang::tr{'guardian daemon'}</td>
|
|
<td align='center' colspan='2' width='75%' bgcolor='${Header::colourgreen}'><font color='white'><strong>$Lang::tr{'running'}</strong></font></td>
|
|
</tr>
|
|
<tr>
|
|
<td class='base'></td>
|
|
<td bgcolor='$color{'color20'}' align='center'><strong>PID</strong></td>
|
|
<td bgcolor='$color{'color20'}' align='center'><strong>$Lang::tr{'memory'}</strong></td>
|
|
</tr>
|
|
<tr>
|
|
<td class='base'></td>
|
|
<td bgcolor='$color{'color22'}' align='center'>$pid</td>
|
|
<td bgcolor='$color{'color22'}' align='center'>$memory KB</td>
|
|
</tr>
|
|
</table>
|
|
END
|
|
} else {
|
|
# Otherwise display a hint that the service is not launched.
|
|
print <<END;
|
|
<table width='95%' cellspacing='0' class='tbl'>
|
|
<tr>
|
|
<th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'guardian service'}</strong></th>
|
|
</tr>
|
|
<tr>
|
|
<td class='base'>$Lang::tr{'guardian daemon'}</td>
|
|
<td align='center' width='75%' bgcolor='${Header::colourred}'><font color='white'><strong>$Lang::tr{'stopped'}</strong></font></td>
|
|
</tr>
|
|
</table>
|
|
END
|
|
}
|
|
|
|
&Header::closebox();
|
|
|
|
# Draw elements for guardian configuration.
|
|
&Header::openbox('100%', 'center', $Lang::tr{'guardian configuration'});
|
|
|
|
print <<END;
|
|
<form method='post' action='$ENV{'SCRIPT_NAME'}'>
|
|
|
|
<table width='95%'>
|
|
<tr>
|
|
<td colspan='2' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'guardian common settings'}</b></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td width='25%' class='base'>$Lang::tr{'guardian enabled'}:</td>
|
|
<td><input type='checkbox' name='GUARDIAN_ENABLED' $checked{'GUARDIAN_ENABLED'}{'on'} /></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td colspan='2'><br></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td width='25%' class='base'>$Lang::tr{'guardian watch snort alertfile'}</td>
|
|
<td align='left'>on <input type='radio' name='GUARDIAN_MONITOR_SNORT' value='on' $checked{'GUARDIAN_MONITOR_SNORT'}{'on'} /> /
|
|
<input type='radio' name='GUARDIAN_MONITOR_SNORT' value='off' $checked{'GUARDIAN_MONITOR_SNORT'}{'off'} /> off</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td width='25%' class='base'>$Lang::tr{'guardian block ssh brute-force'}</td>
|
|
<td align='left'>on <input type='radio' name='GUARDIAN_MONITOR_SSH' value='on' $checked{'GUARDIAN_MONITOR_SSH'}{'on'} /> /
|
|
<input type='radio' name='GUARDIAN_MONITOR_SSH' value='off' $checked{'GUARDIAN_MONITOR_SSH'}{'off'} /> off</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td width='25%' class='base'>$Lang::tr{'guardian block httpd brute-force'}</td>
|
|
<td align='left'>on <input type='radio' name='GUARDIAN_MONITOR_HTTPD' value='on' $checked{'GUARDIAN_MONITOR_HTTPD'}{'on'} /> /
|
|
<input type='radio' name='GUARDIAN_MONITOR_HTTPD' value='off' $checked{'GUARDIAN_MONITOR_HTTPD'}{'off'} /> off</td>
|
|
</tr>
|
|
END
|
|
|
|
# Display owncloud checkbox when the addon is installed.
|
|
if ( -e "$owncloud_meta" ) {
|
|
print"<tr>\n";
|
|
print"<td width='25%' class='base'>$Lang::tr{'guardian block owncloud brute-force'}</td>\n";
|
|
print"<td align='left'>on <input type='radio' name='GUARDIAN_MONITOR_OWNCLOUD' value='on' $checked{'GUARDIAN_MONITOR_OWNCLOUD'}{'on'} /> /\n";
|
|
print"<input type='radio' name='GUARDIAN_MONITOR_OWNCLOUD' value='off' $checked{'GUARDIAN_MONITOR_OWNCLOUD'}{'off'} /> off</td>\n";
|
|
print"</tr>\n";
|
|
}
|
|
print <<END;
|
|
<tr>
|
|
<td colspan='2'><br></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align='left' width='20%'>$Lang::tr{'guardian logfacility'}:</td>
|
|
<td width='25%'><select id='GUARDIAN_LOG_FACILITY' name='GUARDIAN_LOG_FACILITY'>
|
|
<option id='logfacility_syslog' value='syslog' $selected{'GUARDIAN_LOG_FACILITY'}{'syslog'}>$Lang::tr{'guardian logtarget_syslog'}</option>
|
|
<option id='logfacility_file' value='file' $selected{'GUARDIAN_LOG_FACILITY'}{'file'}>$Lang::tr{'guardian logtarget_file'}</option>
|
|
<option id='logfacility_console' value='console' $selected{'GUARDIAN_LOG_FACILITY'}{'console'}>$Lang::tr{'guardian logtarget_console'}</option>
|
|
</select></td>
|
|
|
|
<td align='left' width='20%'>$Lang::tr{'guardian loglevel'}:</td>
|
|
<td width='25%'><select id='GUARDIAN_LOGLEVEL' name='GUARDIAN_LOGLEVEL'>
|
|
<option id='loglevel_off' value='off' $selected{'GUARDIAN_LOGLEVEL'}{'off'}>$Lang::tr{'guardian loglevel_off'}</option>
|
|
<option id='loglevel_info' value='info' $selected{'GUARDIAN_LOGLEVEL'}{'info'}>$Lang::tr{'guardian loglevel_info'}</option>
|
|
<option id='loglevel_debug' value='debug' $selected{'GUARDIAN_LOGLEVEL'}{'debug'}>$Lang::tr{'guardian loglevel_debug'}</option>
|
|
</select></td>
|
|
</tr>
|
|
|
|
<tr class="GUARDIAN_LOGFILE">
|
|
<td colspan='2'><br></td>
|
|
</tr>
|
|
|
|
<tr class="GUARDIAN_LOGFILE">
|
|
<td width='25%' class='base'>$Lang::tr{'guardian logfile'}:</td>
|
|
<td><input type='text' name='GUARDIAN_LOGFILE' value='$settings{'GUARDIAN_LOGFILE'}' size='30' /></td>
|
|
</tr>
|
|
|
|
<tr class="GUARDIAN_SNORT_PRIORITY_LEVEL">
|
|
<td colspan='2'><br></td>
|
|
</tr>
|
|
|
|
<tr class="GUARDIAN_SNORT_PRIORITY_LEVEL">
|
|
<td align='left' width='20%'>$Lang::tr{'guardian priority level'}:</td>
|
|
<td><select name='GUARDIAN_SNORT_PRIORITY_LEVEL'>
|
|
<option value='1' $selected{'GUARDIAN_SNORT_PRIORITY_LEVEL'}{'1'}>$Lang::tr{'guardian priolevel_high'}</option>
|
|
<option value='2' $selected{'GUARDIAN_SNORT_PRIORITY_LEVEL'}{'2'}>$Lang::tr{'guardian priolevel_medium'}</option>
|
|
<option value='3' $selected{'GUARDIAN_SNORT_PRIORITY_LEVEL'}{'3'}>$Lang::tr{'guardian priolevel_low'}</option>
|
|
<option value='4' $selected{'GUARDIAN_SNORT_PRIORITY_LEVEL'}{'4'}>$Lang::tr{'guardian priolevel_very_low'}</option>
|
|
</select></td>
|
|
|
|
<td width='25%' class='base'>$Lang::tr{'guardian blockcount'}:</td>
|
|
<td><input type='text' name='GUARDIAN_BLOCKCOUNT' value='$settings{'GUARDIAN_BLOCKCOUNT'}' size='5' /></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td colspan='2'><br></td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td width='25%' class='base'>$Lang::tr{'guardian firewallaction'}:</td>
|
|
<td><select name='GUARDIAN_FIREWALL_ACTION'>
|
|
<option value='DROP' $selected{'GUARDIAN_FIREWALL_ACTION'}{'DROP'}>Drop</option>
|
|
<option value='REJECT' $selected{'GUARDIAN_FIREWALL_ACTION'}{'REJECT'}>Reject</option>
|
|
</select></td>
|
|
|
|
<td width='25%' class='base'>$Lang::tr{'guardian blocktime'}:</td>
|
|
<td><input type='text' name='GUARDIAN_BLOCKTIME' value='$settings{'GUARDIAN_BLOCKTIME'}' size='10' /></td>
|
|
</tr>
|
|
|
|
</table>
|
|
END
|
|
|
|
print <<END;
|
|
<hr>
|
|
|
|
<table width='95%'>
|
|
<tr>
|
|
<td> </td>
|
|
<td align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
|
|
<td> </td>
|
|
</tr>
|
|
</table>
|
|
</form>
|
|
END
|
|
|
|
&Header::closebox();
|
|
}
|
|
|
|
# Function to show elements of the guardian ignorefile and allow to add or remove single members of it.
|
|
sub showIgnoreBox() {
|
|
&Header::openbox('100%', 'center', $Lang::tr{'guardian ignored hosts'});
|
|
|
|
print <<END;
|
|
<table width='80%'>
|
|
<tr>
|
|
<td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'ip address'}</b></td>
|
|
<td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'remark'}</b></td>
|
|
<td class='base' colspan='3' bgcolor='$color{'color20'}'></td>
|
|
</tr>
|
|
END
|
|
# Check if some hosts have been added to be ignored.
|
|
if (keys (%ignored)) {
|
|
my $col = "";
|
|
|
|
# Loop through all entries of the hash.
|
|
while( (my $key) = each %ignored) {
|
|
# Assign data array positions to some nice variable names.
|
|
my $address = $ignored{$key}[0];
|
|
my $remark = $ignored{$key}[1];
|
|
my $status = $ignored{$key}[2];
|
|
|
|
# Check if the key (id) number is even or not.
|
|
if ($settings{'ID'} eq $key) {
|
|
$col="bgcolor='${Header::colouryellow}'";
|
|
} elsif ($key % 2) {
|
|
$col="bgcolor='$color{'color22'}'";
|
|
} else {
|
|
$col="bgcolor='$color{'color20'}'";
|
|
}
|
|
|
|
# Choose icon for the checkbox.
|
|
my $gif;
|
|
my $gdesc;
|
|
|
|
# Check if the status is enabled and select the correct image and description.
|
|
if ($status eq 'enabled' ) {
|
|
$gif = 'on.gif';
|
|
$gdesc = $Lang::tr{'click to disable'};
|
|
} else {
|
|
$gif = 'off.gif';
|
|
$gdesc = $Lang::tr{'click to enable'};
|
|
}
|
|
|
|
print <<END;
|
|
<tr>
|
|
<td width='20%' class='base' $col>$address</td>
|
|
<td width='65%' class='base' $col>$remark</td>
|
|
|
|
<td align='center' $col>
|
|
<form method='post' action='$ENV{'SCRIPT_NAME'}'>
|
|
<input type='hidden' name='ACTION' value='$Lang::tr{'toggle enable disable'}' />
|
|
<input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$gif' alt='$gdesc' title='$gdesc' />
|
|
<input type='hidden' name='ID' value='$key' />
|
|
</form>
|
|
</td>
|
|
|
|
<td align='center' $col>
|
|
<form method='post' action='$ENV{'SCRIPT_NAME'}'>
|
|
<input type='hidden' name='ACTION' value='$Lang::tr{'edit'}' />
|
|
<input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' alt='$Lang::tr{'edit'}' title='$Lang::tr{'edit'}' />
|
|
<input type='hidden' name='ID' value='$key' />
|
|
</form>
|
|
</td>
|
|
|
|
<td align='center' $col>
|
|
<form method='post' name='$key' action='$ENV{'SCRIPT_NAME'}'>
|
|
<input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' title='$Lang::tr{'remove'}' alt='$Lang::tr{'remove'}'>
|
|
<input type='hidden' name='ID' value='$key'>
|
|
<input type='hidden' name='ACTION' value='$Lang::tr{'remove'}'>
|
|
</form>
|
|
</td>
|
|
</tr>
|
|
END
|
|
}
|
|
} else {
|
|
# Print notice that currently no hosts are ignored.
|
|
print "<tr>\n";
|
|
print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n";
|
|
print "</tr>\n";
|
|
}
|
|
|
|
print "</table>\n";
|
|
|
|
# Section to add new elements or edit existing ones.
|
|
print <<END;
|
|
<br>
|
|
<hr>
|
|
<br>
|
|
|
|
<div align='center'>
|
|
<table width='100%'>
|
|
END
|
|
|
|
# Assign correct headline and button text.
|
|
my $buttontext;
|
|
my $entry_address;
|
|
my $entry_remark;
|
|
|
|
# Check if an ID (key) has been given, in this case an existing entry should be edited.
|
|
if ($settings{'ID'} ne '') {
|
|
$buttontext = $Lang::tr{'update'};
|
|
print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'update'}</b></td></tr>\n";
|
|
|
|
# Grab address and remark for the given key.
|
|
$entry_address = $ignored{$settings{'ID'}}[0];
|
|
$entry_remark = $ignored{$settings{'ID'}}[1];
|
|
} else {
|
|
$buttontext = $Lang::tr{'add'};
|
|
print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'dnsforward add a new entry'}</b></td></tr>\n";
|
|
}
|
|
|
|
print <<END;
|
|
<form method='post' action='$ENV{'SCRIPT_NAME'}'>
|
|
<input type='hidden' name='ID' value='$settings{'ID'}'>
|
|
<tr>
|
|
<td width='30%'>$Lang::tr{'ip address'}: </td>
|
|
<td width='50%'><input type='text' name='IGNORE_ENTRY_ADDRESS' value='$entry_address' size='24' /></td>
|
|
|
|
<td width='30%'>$Lang::tr{'remark'}: </td>
|
|
<td wicth='50%'><input type='text' name=IGNORE_ENTRY_REMARK value='$entry_remark' size='24' /></td>
|
|
<td align='center' width='20%'><input type='submit' name='ACTION' value='$buttontext' /></td>
|
|
</tr>
|
|
</form>
|
|
</table>
|
|
</div>
|
|
END
|
|
|
|
&Header::closebox();
|
|
}
|
|
|
|
# Function to list currently blocked addresses from guardian and unblock them or add custom entries to block.
|
|
sub showBlockedBox() {
|
|
&Header::openbox('100%', 'center', $Lang::tr{'guardian blocked hosts'});
|
|
|
|
print <<END;
|
|
<table width='60%'>
|
|
<tr>
|
|
<td colspan='2' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'guardian blocked hosts'}</b></td>
|
|
</tr>
|
|
END
|
|
|
|
# Launch function to get the currently blocked hosts.
|
|
my @blocked_hosts = &GetBlockedHosts();
|
|
|
|
my $id = 0;
|
|
my $col = "";
|
|
|
|
# Loop through our blocked hosts array.
|
|
foreach my $blocked_host (@blocked_hosts) {
|
|
|
|
# Increase id number for each element in the ignore file.
|
|
$id++;
|
|
|
|
# Check if the id number is even or not.
|
|
if ($id % 2) {
|
|
$col="bgcolor='$color{'color22'}'";
|
|
} else {
|
|
$col="bgcolor='$color{'color20'}'";
|
|
}
|
|
|
|
print <<END;
|
|
<tr>
|
|
<td width='80%' class='base' $col><a href='/cgi-bin/ipinfo.cgi?ip=$blocked_host'>$blocked_host</a></td>
|
|
<td width='20%' align='center' $col>
|
|
<form method='post' name='frmb$id' action='$ENV{'SCRIPT_NAME'}'>
|
|
<input type='image' name='$Lang::tr{'unblock'}' src='/images/delete.gif' title='$Lang::tr{'unblock'}' alt='$Lang::tr{'unblock'}'>
|
|
<input type='hidden' name='ADDRESS_UNBLOCK' value='$blocked_host'>
|
|
<input type='hidden' name='ACTION' value='$Lang::tr{'unblock'}'>
|
|
</form>
|
|
</td>
|
|
</tr>
|
|
END
|
|
}
|
|
|
|
# If the loop only has been run once the id still is "0", which means there are no
|
|
# additional entries (blocked hosts) in the iptables chain.
|
|
if ($id == 0) {
|
|
|
|
# Print notice that currently no hosts are blocked.
|
|
print "<tr>\n";
|
|
print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n";
|
|
print "</tr>\n";
|
|
}
|
|
|
|
print "</table>\n";
|
|
|
|
# Section for a manual block of an IP-address.
|
|
print <<END;
|
|
<br>
|
|
<div align='center'>
|
|
<table width='60%' border='0'>
|
|
<form method='post' action='$ENV{'SCRIPT_NAME'}'>
|
|
<tr>
|
|
<td width='30%'>$Lang::tr{'guardian block a host'}: </td>
|
|
<td width='40%'><input type='text' name='ADDRESS_BLOCK' value='' size='24' /></td>
|
|
<td align='center' width='15%'><input type='submit' name='ACTION' value='$Lang::tr{'block'}'></td>
|
|
<td align='center' width='15%'><input type='submit' name='ACTION' value='$Lang::tr{'unblock all'}'></td>
|
|
</tr>
|
|
</form>
|
|
</table>
|
|
</div>
|
|
END
|
|
|
|
&Header::closebox();
|
|
}
|
|
|
|
&Header::closebigbox();
|
|
&Header::closepage();
|
|
|
|
# Function to check if guardian has been started.
|
|
# Grab process id and consumed memory if the daemon is running.
|
|
sub daemonstats() {
|
|
$memory = 0;
|
|
# for pid and memory
|
|
open(FILE, '/usr/local/bin/addonctrl guardian status | ');
|
|
@guardian = <FILE>;
|
|
close(FILE);
|
|
$string = join("", @guardian);
|
|
$string =~ s/[a-z_]//gi;
|
|
$string =~ s/\[[0-1]\;[0-9]+//gi;
|
|
$string =~ s/[\(\)\.]//gi;
|
|
$string =~ s/ //gi;
|
|
$string =~ s/\e//gi;
|
|
@pid = split(/\s/,$string);
|
|
if (open(FILE, "/proc/$pid[0]/statm")){
|
|
my $temp = <FILE>;
|
|
@memory = split(/ /,$temp);
|
|
close(FILE);
|
|
}
|
|
$memory+=$memory[0];
|
|
}
|
|
|
|
sub GetBlockedHosts() {
|
|
# Create new, empty array.
|
|
my @hosts;
|
|
|
|
# Launch helper to get chains from iptables.
|
|
system('/usr/local/bin/getipstat');
|
|
|
|
# Open temporary file which contains the chains and rules.
|
|
open (FILE, '/var/tmp/iptables.txt');
|
|
|
|
# Loop through the entire file.
|
|
while (<FILE>) {
|
|
my $line = $_;
|
|
|
|
# Search for the guardian chain and extract
|
|
# the lines between it and the next empty line
|
|
# which is placed before the next firewall
|
|
# chain starts.
|
|
if ($line =~ /^Chain GUARDIAN/ .. /^\s*$/) {
|
|
# Skip descriptive lines.
|
|
next if ($line =~ /^Chain/);
|
|
next if ($line =~ /^ pkts/);
|
|
|
|
# Generate array, based on the line content (separator is a single or multiple space)
|
|
my @comps = split(/\s{1,}/, $line);
|
|
my ($lead, $pkts, $bytes, $target, $prot, $opt, $in, $out, $source, $destination) = @comps;
|
|
|
|
# Assign different variable names.
|
|
my $blocked_host = $source;
|
|
|
|
# Add host to our hosts array.
|
|
if ($blocked_host) {
|
|
push(@hosts, $blocked_host);
|
|
}
|
|
}
|
|
}
|
|
|
|
# Close filehandle.
|
|
close(FILE);
|
|
|
|
# Remove recently created temporary files of the "getipstat" binary.
|
|
system("rm -f /var/tmp/iptables.txt");
|
|
system("rm -f /var/tmp/iptablesmangle.txt");
|
|
system("rm -f /var/tmp/iptablesnat.txt");
|
|
|
|
# Convert entries, sort them, write back and store the sorted entries into new array.
|
|
my @sorted = map { $_->[0] }
|
|
sort { $a->[1] <=> $b->[1] }
|
|
map { [$_, int sprintf("%03.f%03.f%03.f%03.f", split(/\./, $_))] }
|
|
@hosts;
|
|
|
|
# Return our sorted list.
|
|
return @sorted
|
|
}
|
|
|
|
sub BuildConfiguration() {
|
|
my %settings = ();
|
|
&General::readhash("${General::swroot}/guardian/settings", \%settings);
|
|
|
|
my $configfile = "${General::swroot}/guardian/guardian.conf";
|
|
|
|
# Create the configfile if none exists yet.
|
|
unless (-e "$configfile") { system("touch $configfile"); }
|
|
|
|
# Open configfile for writing.
|
|
open(FILE, ">$configfile");
|
|
|
|
# Config file header.
|
|
print FILE "# Autogenerated configuration file.\n";
|
|
print FILE "# All user modifications will be overwritten.\n\n";
|
|
|
|
# Settings for the logging mechanism.
|
|
print FILE "# Log settings.\n";
|
|
print FILE "LogFacility = $settings{'GUARDIAN_LOG_FACILITY'}\n";
|
|
|
|
if ($settings{'GUARDIAN_LOG_FACILITY'} eq "file") {
|
|
print FILE "LogFile = $settings{'GUARDIAN_LOGFILE'}\n";
|
|
}
|
|
|
|
print FILE "LogLevel = $settings{'GUARDIAN_LOGLEVEL'}\n\n";
|
|
|
|
# IPFire related static settings.
|
|
print FILE "# IPFire related settings.\n";
|
|
print FILE "FirewallEngine = IPtables\n";
|
|
print FILE "SocketOwner = nobody:nobody\n";
|
|
print FILE "IgnoreFile = $ignorefile\n\n";
|
|
|
|
# Configured block values.
|
|
print FILE "# Configured block settings.\n";
|
|
print FILE "BlockCount = $settings{'GUARDIAN_BLOCKCOUNT'}\n";
|
|
print FILE "BlockTime = $settings{'GUARDIAN_BLOCKTIME'}\n";
|
|
print FILE "FirewallAction = $settings{'GUARDIAN_FIREWALL_ACTION'}\n\n";
|
|
|
|
# Enabled modules.
|
|
# Loop through whole settings hash.
|
|
print FILE "# Enabled modules.\n";
|
|
foreach my $option (keys %settings) {
|
|
# Search for enabled modules.
|
|
if ($option =~ /GUARDIAN_MONITOR_(.*)/) {
|
|
# Skip if module is not enabled.
|
|
next unless($settings{$option} eq "on");
|
|
|
|
# Skip module if no file location is available.
|
|
next unless(exists($module_file_locations{$1}));
|
|
|
|
# Add enabled module and defined path to the config file.
|
|
print FILE "Monitor_$1 = $module_file_locations{$1}\n";
|
|
}
|
|
}
|
|
|
|
# Module settings.
|
|
print FILE "\n# Module settings.\n";
|
|
# Check if SNORT is enabled and add snort priority.
|
|
if ($settings{'GUARDIAN_MONITOR_SNORT'} eq "on") {
|
|
print FILE "SnortPriorityLevel = $settings{'GUARDIAN_SNORT_PRIORITY_LEVEL'}\n";
|
|
}
|
|
|
|
close(FILE);
|
|
|
|
# Generate ignore file.
|
|
&GenerateIgnoreFile();
|
|
|
|
# Check if guardian should be started or stopped.
|
|
if($settings{'GUARDIAN_ENABLED'} eq 'on') {
|
|
if($pid > 0) {
|
|
# Send reload command through socket connection.
|
|
&Guardian::Socket::Client("reload");
|
|
} else {
|
|
# Launch guardian.
|
|
system("/usr/local/bin/addonctrl guardian start &>/dev/null");
|
|
}
|
|
} else {
|
|
# Stop the daemon.
|
|
system("/usr/local/bin/addonctrl guardian stop &>/dev/null");
|
|
}
|
|
}
|
|
|
|
sub GenerateIgnoreFile() {
|
|
my %ignored = ();
|
|
|
|
# Read-in ignoredfile.
|
|
&General::readhasharray($ignoredfile, \%ignored);
|
|
|
|
# Create the guardian.ignore file if not exist yet.
|
|
unless (-e "$ignorefile") { system("touch $ignorefile"); }
|
|
|
|
# Open ignorefile for writing.
|
|
open(FILE, ">$ignorefile");
|
|
|
|
# Config file header.
|
|
print FILE "# Autogenerated configuration file.\n";
|
|
print FILE "# All user modifications will be overwritten.\n\n";
|
|
|
|
# Add IFPire interfaces and gateway to the ignore file.
|
|
#
|
|
# Assign some temporary variables for the IPFire interfaces.
|
|
my $green = $netsettings{'GREEN_ADDRESS'};
|
|
my $blue = $netsettings{'BLUE_ADDRESS'};
|
|
my $orange = $netsettings{'ORANGE_ADDRESS'};
|
|
|
|
# File declarations.
|
|
my $public_address_file = "${General::swroot}/red/local-ipaddress";
|
|
my $gatewayfile = "${General::swroot}/red/remote-ipaddress";
|
|
my $dns1file = "${General::swroot}/red/dns1";
|
|
my $dns2file = "${General::swroot}/red/dns2";
|
|
|
|
# Write the obtained addresses to the ignore file.
|
|
print FILE "# IPFire local interfaces.\n";
|
|
print FILE "$green\n";
|
|
|
|
# Check if a blue interface exists.
|
|
if ($blue) {
|
|
# Add blue address.
|
|
print FILE "$blue\n";
|
|
}
|
|
|
|
# Check if an orange interface exists.
|
|
if ($orange) {
|
|
# Add orange address.
|
|
print FILE "$orange\n";
|
|
}
|
|
|
|
print FILE "\n# IPFire red interface, gateway and used DNS-servers.\n";
|
|
print FILE "# Include the corresponding files to obtain the addresses.\n";
|
|
print FILE "Include_File = $public_address_file\n";
|
|
print FILE "Include_File = $gatewayfile\n";
|
|
print FILE "Include_File = $dns1file\n";
|
|
print FILE "Include_File = $dns2file\n";
|
|
|
|
# Add all user defined hosts and networks to the ignore file.
|
|
#
|
|
# Check if the hash contains any elements.
|
|
if (keys (%ignored)) {
|
|
# Write headline.
|
|
print FILE "\n# User defined hosts/networks.\n";
|
|
|
|
# Loop through the entire hash and write the host/network
|
|
# and remark to the ignore file.
|
|
while ( (my $key) = each %ignored) {
|
|
my $address = $ignored{$key}[0];
|
|
my $remark = $ignored{$key}[1];
|
|
my $status = $ignored{$key}[2];
|
|
|
|
# Check if the status of the entry is "enabled".
|
|
if ($status eq "enabled") {
|
|
# Check if the address/network is valid.
|
|
if ((&General::validip($address)) || (&General::validipandmask($address))) {
|
|
# Write the remark to the file.
|
|
print FILE "# $remark\n";
|
|
|
|
# Write the address/network to the ignore file.
|
|
print FILE "$address\n\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
close(FILE);
|
|
}
|
|
|
|
# Private subfunction to obtain IP-addresses from given file names.
|
|
#
|
|
sub _get_address_from_file ($) {
|
|
my $file = shift;
|
|
|
|
# Check if the file exists.
|
|
if (-e $file) {
|
|
# Open the given file.
|
|
open(FILE, "$file") or die "Could not open $file.";
|
|
|
|
# Obtain the address from the first line of the file.
|
|
my $address = <FILE>;
|
|
|
|
# Close filehandle
|
|
close(FILE);
|
|
|
|
# Remove newlines.
|
|
chomp $address;
|
|
|
|
# Check if the grabbed address is valid.
|
|
if (&General::validip($address)) {
|
|
# Return the address.
|
|
return $address;
|
|
}
|
|
}
|
|
|
|
# Return nothing.
|
|
return;
|
|
}
|