]>
git.ipfire.org Git - people/mfischer/ipfire-2.x.git/blob - html/cgi-bin/guardian.cgi
2 ###############################################################################
4 # IPFire.org - A linux based firewall #
5 # Copyright (C) 2016 IPFire Team <info@ipfire.org> #
7 # This program is free software: you can redistribute it and/or modify #
8 # it under the terms of the GNU General Public License as published by #
9 # the Free Software Foundation, either version 3 of the License, or #
10 # (at your option) any later version. #
12 # This program is distributed in the hope that it will be useful, #
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of #
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
15 # GNU General Public License for more details. #
17 # You should have received a copy of the GNU General Public License #
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. #
20 ###############################################################################
23 use Locale
::Codes
::Country
;
26 # enable only the following on debugging purpose
28 #use CGI::Carp 'fatalsToBrowser';
30 require '/var/ipfire/general-functions.pl';
31 require "${General::swroot}/lang.pl";
32 require "${General::swroot}/header.pl";
34 #workaround to suppress a warning when a variable is used only once
37 ${Header
::colourgreen
}
48 # Path to the guardian.ignore file.
49 my $ignorefile ='/var/ipfire/guardian/guardian.ignore';
51 # Hash which contains the supported modules and the
52 # file locations on IPFire systems.
53 my %module_file_locations = (
54 "HTTPD" => "/var/log/httpd/error_log",
55 "OWNCLOUD" => "/var/owncloud/data/owncloud.log",
56 "SNORT" => "/var/log/snort.alert",
57 "SSH" => "/var/log/messages",
60 our %netsettings = ();
61 &General
::readhash
("${General::swroot}/ethernet/settings", \
%netsettings);
64 our %mainsettings = ();
65 &General
::readhash
("${General::swroot}/main/settings", \
%mainsettings);
66 &General
::readhash
("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \
%color);
68 # Pakfire meta file for owncloud.
69 # (File exists when the addon is installed.)
70 my $owncloud_meta = "/opt/pakfire/db/installed/meta-owncloud";
74 my $settingsfile = "${General::swroot}/guardian/settings";
75 my $ignoredfile = "${General::swroot}/guardian/ignored";
77 # Create empty settings and ignoredfile if they do not exist yet.
78 unless (-e
"$settingsfile") { system("touch $settingsfile"); }
79 unless (-e
"$ignoredfile") { system("touch $ignoredfile"); }
84 $settings{'ACTION'} = '';
86 $settings{'GUARDIAN_ENABLED'} = 'off';
87 $settings{'GUARDIAN_MONITOR_SNORT'} = 'on';
88 $settings{'GUARDIAN_MONITOR_SSH'} = 'on';
89 $settings{'GUARDIAN_MONITOR_HTTPD'} = 'on';
90 $settings{'GUARDIAN_MONITOR_OWNCLOUD'} = '';
91 $settings{'GUARDIAN_LOG_FACILITY'} = 'syslog';
92 $settings{'GUARDIAN_LOGLEVEL'} = 'info';
93 $settings{'GUARDIAN_BLOCKCOUNT'} = '3';
94 $settings{'GUARDIAN_BLOCKTIME'} = '86400';
95 $settings{'GUARDIAN_FIREWALL_ACTION'} = 'DROP';
96 $settings{'GUARDIAN_LOGFILE'} = '/var/log/guardian/guardian.log';
97 $settings{'GUARDIAN_SNORT_PRIORITY_LEVEL'} = '3';
99 # Default settings for owncloud if installed.
100 if ( -e
"$owncloud_meta") {
101 $settings{'GUARDIAN_MONITOR_OWNCLOUD'} = 'off';
104 my $errormessage = '';
106 &Header
::showhttpheaders
();
109 &Header
::getcgihash
(\
%settings);
111 # Check if guardian is running and grab some stats.
115 ## Perform input checks and save settings.
117 if ($settings{'ACTION'} eq $Lang::tr
{'save'}) {
118 # Check for valid blocktime.
119 unless(($settings{'GUARDIAN_BLOCKTIME'} =~ /^\d+$/) && ($settings{'GUARDIAN_BLOCKTIME'} ne "0")) {
120 $errormessage = "$Lang::tr{'guardian invalid blocktime'}";
123 # Check if the bloccount is valid.
124 unless(($settings{'GUARDIAN_BLOCKCOUNT'} =~ /^\d+$/) && ($settings{'GUARDIAN_BLOCKCOUNT'} ne "0")) {
125 $errormessage = "$Lang::tr{'guardian invalid blockcount'}";
129 unless($settings{'GUARDIAN_LOGFILE'} =~ /^[a-zA-Z0-9\.\/]+$/) {
130 $errormessage = "$Lang::tr{'guardian invalid logfile'}";
133 # Only continue if no error message has been set.
134 if($errormessage eq '') {
135 # Write configuration settings to file.
136 &General
::writehash
("${General::swroot}/guardian/settings", \
%settings);
138 # Update configuration files.
139 &BuildConfiguration
();
142 ## Add/edit an entry to the ignore file.
144 } elsif (($settings{'ACTION'} eq $Lang::tr
{'add'}) || ($settings{'ACTION'} eq $Lang::tr
{'update'})) {
146 # Check if any input has been performed.
147 if ($settings{'IGNORE_ENTRY_ADDRESS'} ne '') {
149 # Check if the given input is no valid IP-address or IP-address with subnet, display an error message.
150 if ((!&General
::validip
($settings{'IGNORE_ENTRY_ADDRESS'})) && (!&General
::validipandmask
($settings{'IGNORE_ENTRY_ADDRESS'}))) {
151 $errormessage = "$Lang::tr{'guardian invalid address or subnet'}";
154 $errormessage = "$Lang::tr{'guardian empty input'}";
157 # Go further if there was no error.
158 if ($errormessage eq '') {
163 # Assign hash values.
164 my $new_entry_address = $settings{'IGNORE_ENTRY_ADDRESS'};
165 my $new_entry_remark = $settings{'IGNORE_ENTRY_REMARK'};
167 # Read-in ignoredfile.
168 &General
::readhasharray
($ignoredfile, \
%ignored);
170 # Check if we should edit an existing entry and got an ID.
171 if (($settings{'ACTION'} eq $Lang::tr
{'update'}) && ($settings{'ID'})) {
172 # Assin the provided id.
173 $id = $settings{'ID'};
175 # Undef the given ID.
176 undef($settings{'ID'});
178 # Grab the configured status of the corresponding entry.
179 $status = $ignored{$id}[2];
181 # Each newly added entry automatically should be enabled.
184 # Generate the ID for the new entry.
186 # Sort the keys by it's ID and store them in an array.
187 my @keys = sort { $a <=> $b } keys %ignored;
189 # Reverse the key array.
190 my @reversed = reverse(@keys);
192 # Obtain the last used id.
193 my $last_id = @reversed[0];
195 # Increase the last id by one and use it as id for the new entry.
199 # Add/Modify the entry to/in the ignored hash.
200 $ignored{$id} = ["$new_entry_address", "$new_entry_remark", "$status"];
202 # Write the changed ignored hash to the ignored file.
203 &General
::writehasharray
($ignoredfile, \
%ignored);
205 # Regenerate the ignore file.
206 &GenerateIgnoreFile
();
209 # Check if guardian is running.
211 # Send reload command through socket connection.
212 &Guardian
::Socket
::Client
("reload-ignore-list");
215 ## Toggle Enabled/Disabled for an existing entry on the ignore list.
218 } elsif ($settings{'ACTION'} eq $Lang::tr
{'toggle enable disable'}) {
221 # Only go further, if an ID has been passed.
222 if ($settings{'ID'}) {
223 # Assign the given ID.
224 my $id = $settings{'ID'};
226 # Undef the given ID.
227 undef($settings{'ID'});
229 # Read-in ignoredfile.
230 &General
::readhasharray
($ignoredfile, \
%ignored);
232 # Grab the configured status of the corresponding entry.
233 my $status = $ignored{$id}[2];
236 if ($status eq "disabled") {
239 $status = "disabled";
242 # Modify the status of the existing entry.
243 $ignored{$id} = ["$ignored{$id}[0]", "$ignored{$id}[1]", "$status"];
245 # Write the changed ignored hash to the ignored file.
246 &General
::writehasharray
($ignoredfile, \
%ignored);
248 # Regenerate the ignore file.
249 &GenerateIgnoreFile
();
251 # Check if guardian is running.
253 # Send reload command through socket connection.
254 &Guardian
::Socket
::Client
("reload-ignore-list");
258 ## Remove entry from ignore list.
260 } elsif ($settings{'ACTION'} eq $Lang::tr
{'remove'}) {
263 # Read-in ignoredfile.
264 &General
::readhasharray
($ignoredfile, \
%ignored);
266 # Drop entry from the hash.
267 delete($ignored{$settings{'ID'}});
269 # Undef the given ID.
270 undef($settings{'ID'});
272 # Write the changed ignored hash to the ignored file.
273 &General
::writehasharray
($ignoredfile, \
%ignored);
275 # Regenerate the ignore file.
276 &GenerateIgnoreFile
();
278 # Check if guardian is running.
280 # Send reload command through socket connection.
281 &Guardian
::Socket
::Client
("reload-ignore-list");
284 ## Block a user given address or subnet.
286 } elsif ($settings{'ACTION'} eq $Lang::tr
{'block'}) {
288 # Assign some temporary variables used for input validation.
289 my $input = $settings{'ADDRESS_BLOCK'};
290 my $green = $netsettings{'GREEN_ADDRESS'};
291 my $blue = $netsettings{'BLUE_ADDRESS'};
292 my $orange = $netsettings{'ORANGE_ADDRESS'};
293 my $red = $netsettings{'RED_ADDRESS'};
296 my $gatewayfile = "${General::swroot}/red/remote-ipaddress";
297 my $dns1file = "${General::swroot}/red/dns1";
298 my $dns2file = "${General::swroot}/red/dns2";
300 # Get gateway address.
301 my $gateway = &_get_address_from_file
($gatewayfile);
303 # Get addresses from the used dns servers.
304 my $dns1 = &_get_address_from_file
($dns1file);
305 my $dns2 = &_get_address_from_file
($dns2file);
307 # Check if any input has been performed.
309 $errormessage = "$Lang::tr{'guardian empty input'}";
312 # Check if the given input is localhost (127.0.0.1).
313 elsif ($input eq "127.0.0.1") {
314 $errormessage = "$Lang::tr{'guardian blocking of this address is not allowed'}";
317 # Check if the given input is anywhere (0.0.0.0).
318 elsif ($input eq "0.0.0.0") {
319 $errormessage = "$Lang::tr{'guardian blocking of this address is not allowed'}";
322 # Check if the given input is one of the interface addresses or our gateway.
323 elsif ($input eq "$green" || $input eq "$blue" || $input eq "$orange" || $input eq "$red" || $input eq "$gateway" || $input eq "$dns1" || $input eq "$dns2") {
324 $errormessage = "$Lang::tr{'guardian blocking of this address is not allowed'}";
327 # Check if the given input is a valid IP address.
328 elsif (!&General
::validip
($input)) {
329 $errormessage = "$Lang::tr{'guardian invalid address or subnet'}";
332 # Go further if there was no error.
333 if ($errormessage eq '') {
334 my $block = $settings{'ADDRESS_BLOCK'};
336 # Send command to block the specified address through socket connection.
337 &Guardian
::Socket
::Client
("block $block");
340 ## Unblock address or subnet.
342 } elsif ($settings{'ACTION'} eq $Lang::tr
{'unblock'}) {
344 # Check if no empty input has been performed.
345 if ($settings{'ADDRESS_UNBLOCK'} ne '') {
347 # Check if the given input is no valid IP-address or IP-address with subnet, display an error message.
348 if ((!&General
::validip
($settings{'ADDRESS_UNBLOCK'})) && (!&General
::validipandmask
($settings{'ADDRESS_UNBLOCK'}))) {
349 $errormessage = "$Lang::tr{'guardian invalid address or subnet'}";
353 $errormessage = "$Lang::tr{'guardian empty input'}";
356 # Go further if there was no error.
357 if ($errormessage eq '') {
358 my $unblock = $settings{'ADDRESS_UNBLOCK'};
360 # Send command to unblock the given address through socket connection.
361 &Guardian
::Socket
::Client
("unblock $unblock");
366 } elsif ($settings{'ACTION'} eq $Lang::tr
{'unblock all'}) {
368 # Send flush command through socket connection.
369 &Guardian
::Socket
::Client
("flush");
372 # Load settings from files.
373 &General
::readhash
("${General::swroot}/guardian/settings", \
%settings);
374 &General
::readhasharray
("${General::swroot}/guardian/ignored", \
%ignored);
376 # Call functions to generate whole page.
380 # Display area only if guardian is running.
381 if ( ($memory != 0) && ($pid > 0) ) {
385 # Function to display the status of guardian and allow base configuration.
390 $checked{'GUARDIAN_ENABLED'}{'on'} = '';
391 $checked{'GUARDIAN_ENABLED'}{'off'} = '';
392 $checked{'GUARDIAN_ENABLED'}{$settings{'GUARDIAN_ENABLED'}} = 'checked';
393 $checked{'GUARDIAN_MONITOR_SNORT'}{'off'} = '';
394 $checked{'GUARDIAN_MONITOR_SNORT'}{'on'} = '';
395 $checked{'GUARDIAN_MONITOR_SNORT'}{$settings{'GUARDIAN_MONITOR_SNORT'}} = "checked='checked'";
396 $checked{'GUARDIAN_MONITOR_SSH'}{'off'} = '';
397 $checked{'GUARDIAN_MONITOR_SSH'}{'on'} = '';
398 $checked{'GUARDIAN_MONITOR_SSH'}{$settings{'GUARDIAN_MONITOR_SSH'}} = "checked='checked'";
399 $checked{'GUARDIAN_MONITOR_HTTPD'}{'off'} = '';
400 $checked{'GUARDIAN_MONITOR_HTTPD'}{'on'} = '';
401 $checked{'GUARDIAN_MONITOR_HTTPD'}{$settings{'GUARDIAN_MONITOR_HTTPD'}} = "checked='checked'";
402 $checked{'GUARDIAN_MONITOR_OWNCLOUD'}{'off'} = '';
403 $checked{'GUARDIAN_MONITOR_OWNCLOUD'}{'on'} = '';
404 $checked{'GUARDIAN_MONITOR_OWNCLOUD'}{$settings{'GUARDIAN_MONITOR_OWNCLOUD'}} = "checked='checked'";
406 $selected{'GUARDIAN_LOG_FACILITY'}{$settings{'GUARDIAN_LOG_FACILITY'}} = 'selected';
407 $selected{'GUARDIAN_LOGLEVEL'}{$settings{'GUARDIAN_LOGLEVEL'}} = 'selected';
408 $selected{'GUARDIAN_SNORT_PRIORITY_LEVEL'}{$settings{'GUARDIAN_SNORT_PRIORITY_LEVEL'}} = 'selected';
409 $selected{'GUARDIAN_FIREWALL_ACTION'}{$settings{'GUARDIAN_FIREWALL_ACTION'}} = 'selected';
411 &Header
::openpage
($Lang::tr
{'guardian configuration'}, 1, '');
412 &Header
::openbigbox
('100%', 'left', '', $errormessage);
414 # Print errormessage if there is one.
416 &Header
::openbox
('100%', 'left', $Lang::tr
{'error messages'});
417 print "<font class='base'>$errormessage </font>\n";
424 var update_logfacility = function() {
426 var logfacility = \$("#GUARDIAN_LOG_FACILITY").val();
428 if (logfacility === undefined)
431 if (logfacility === "file") {
432 \$(".GUARDIAN_LOGFILE").show();
434 \$(".GUARDIAN_LOGFILE").hide();
438 \$(document).ready(function() {
439 \$("#GUARDIAN_LOG_FACILITY").change(update_logfacility);
440 update_logfacility();
442 // Show / Hide snort priority level option, based if
443 // snort is enabled / disabled.
444 if (\$('input[name=GUARDIAN_MONITOR_SNORT]:checked').val() == 'on') {
445 \$('.GUARDIAN_SNORT_PRIORITY_LEVEL').show();
447 \$('.GUARDIAN_SNORT_PRIORITY_LEVEL').hide();
450 // Show/Hide snort priority level when GUARDIAN_MONITOR_SNORT get changed.
451 \$('input[name=GUARDIAN_MONITOR_SNORT]').change(function() {
452 \$('.GUARDIAN_SNORT_PRIORITY_LEVEL').toggle();
460 # Draw current guardian state.
461 &Header
::openbox
('100%', 'center', $Lang::tr
{'guardian'});
463 # Get current status of guardian.
467 # Display some useful information related to guardian, if daemon is running.
468 if ( ($memory != 0) && ($pid > 0) ){
470 <table width='95%' cellspacing='0' class='tbl'>
472 <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'guardian service'}</strong></th>
475 <td class='base'>$Lang::tr{'guardian daemon'}</td>
476 <td align='center' colspan='2' width='75%' bgcolor='${Header::colourgreen}'><font color='white'><strong>$Lang::tr{'running'}</strong></font></td>
479 <td class='base'></td>
480 <td bgcolor='$color{'color20'}' align='center'><strong>PID</strong></td>
481 <td bgcolor='$color{'color20'}' align='center'><strong>$Lang::tr{'memory'}</strong></td>
484 <td class='base'></td>
485 <td bgcolor='$color{'color22'}' align='center'>$pid</td>
486 <td bgcolor='$color{'color22'}' align='center'>$memory KB</td>
491 # Otherwise display a hint that the service is not launched.
493 <table width='95%' cellspacing='0' class='tbl'>
495 <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'guardian service'}</strong></th>
498 <td class='base'>$Lang::tr{'guardian daemon'}</td>
499 <td align='center' width='75%' bgcolor='${Header::colourred}'><font color='white'><strong>$Lang::tr{'stopped'}</strong></font></td>
507 # Draw elements for guardian configuration.
508 &Header
::openbox
('100%', 'center', $Lang::tr
{'guardian configuration'});
511 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
515 <td colspan='2' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'guardian common settings'}</b></td>
518 <td width='20%' class='base'>$Lang::tr{'guardian enabled'}:</td>
519 <td><input type='checkbox' name='GUARDIAN_ENABLED' $checked{'GUARDIAN_ENABLED'}{'on'} /></td>
522 <td colspan='2'><br></td>
525 <td width='20%' class='base'>$Lang::tr{'guardian watch snort alertfile'}</td>
526 <td align='left'>on <input type='radio' name='GUARDIAN_MONITOR_SNORT' value='on' $checked{'GUARDIAN_MONITOR_SNORT'}{'on'} /> /
527 <input type='radio' name='GUARDIAN_MONITOR_SNORT' value='off' $checked{'GUARDIAN_MONITOR_SNORT'}{'off'} /> off</td>
530 <td width='20%' class='base'>$Lang::tr{'guardian block ssh brute-force'}</td>
531 <td align='left'>on <input type='radio' name='GUARDIAN_MONITOR_SSH' value='on' $checked{'GUARDIAN_MONITOR_SSH'}{'on'} /> /
532 <input type='radio' name='GUARDIAN_MONITOR_SSH' value='off' $checked{'GUARDIAN_MONITOR_SSH'}{'off'} /> off</td>
535 <td width='20%' class='base'>$Lang::tr{'guardian block httpd brute-force'}</td>
536 <td align='left'>on <input type='radio' name='GUARDIAN_MONITOR_HTTPD' value='on' $checked{'GUARDIAN_MONITOR_HTTPD'}{'on'} /> /
537 <input type='radio' name='GUARDIAN_MONITOR_HTTPD' value='off' $checked{'GUARDIAN_MONITOR_HTTPD'}{'off'} /> off</td>
540 # Display owncloud checkbox when the addon is installed.
541 if ( -e
"$owncloud_meta" ) {
543 print"<td width='20%' class='base'>$Lang::tr{'guardian block owncloud brute-force'}</td>\n";
544 print"<td align='left'>on <input type='radio' name='GUARDIAN_MONITOR_OWNCLOUD' value='on' $checked{'GUARDIAN_MONITOR_OWNCLOUD'}{'on'} /> /\n";
545 print"<input type='radio' name='GUARDIAN_MONITOR_OWNCLOUD' value='off' $checked{'GUARDIAN_MONITOR_OWNCLOUD'}{'off'} /> off</td>\n";
550 <td colspan='2'><br></td>
553 <td align='left' width='20%'>$Lang::tr{'guardian logfacility'}:</td>
554 <td><select id='GUARDIAN_LOG_FACILITY' name='GUARDIAN_LOG_FACILITY'>
555 <option value='syslog' $selected{'GUARDIAN_LOG_FACILITY'}{'syslog'}>syslog</option>
556 <option value='file' $selected{'GUARDIAN_LOG_FACILITY'}{'file'}>file</option>
557 <option value='console' $selected{'GUARDIAN_LOG_FACILITY'}{'console'}>console</option>
561 <td colspan='2'><br></td>
564 <td align='left' width='20%'>$Lang::tr{'guardian loglevel'}:</td>
565 <td><select name='GUARDIAN_LOGLEVEL'>
566 <option value='off' $selected{'GUARDIAN_LOGLEVEL'}{'off'}>off</option>
567 <option value='info' $selected{'GUARDIAN_LOGLEVEL'}{'info'}>info</option>
568 <option value='debug' $selected{'GUARDIAN_LOGLEVEL'}{'debug'}>debug</option>
571 <tr class="GUARDIAN_SNORT_PRIORITY_LEVEL">
572 <td colspan='2'><br></td>
574 <tr class="GUARDIAN_SNORT_PRIORITY_LEVEL">
575 <td align='left' width='20%'>$Lang::tr{'guardian priority level'}:</td>
576 <td><select name='GUARDIAN_SNORT_PRIORITY_LEVEL'>
577 <option value='1' $selected{'GUARDIAN_SNORT_PRIORITY_LEVEL'}{'1'}>1</option>
578 <option value='2' $selected{'GUARDIAN_SNORT_PRIORITY_LEVEL'}{'2'}>2</option>
579 <option value='3' $selected{'GUARDIAN_SNORT_PRIORITY_LEVEL'}{'3'}>3</option>
580 <option value='4' $selected{'GUARDIAN_SNORT_PRIORITY_LEVEL'}{'4'}>4</option>
584 <td colspan='2'><br></td>
587 <td width='20%' class='base'>$Lang::tr{'guardian firewallaction'}:</td>
588 <td><select name='GUARDIAN_FIREWALL_ACTION'>
589 <option value='DROP' $selected{'GUARDIAN_FIREWALL_ACTION'}{'DROP'}>Drop</option>
590 <option value='REJECT' $selected{'GUARDIAN_FIREWALL_ACTION'}{'REJECT'}>Reject</option>
594 <td colspan='2'><br></td>
597 <td width='20%' class='base'>$Lang::tr{'guardian blockcount'}:</td>
598 <td><input type='text' name='GUARDIAN_BLOCKCOUNT' value='$settings{'GUARDIAN_BLOCKCOUNT'}' size='5' /></td>
601 <td width='20%' class='base'>$Lang::tr{'guardian blocktime'}:</td>
602 <td><input type='text' name='GUARDIAN_BLOCKTIME' value='$settings{'GUARDIAN_BLOCKTIME'}' size='10' /></td>
604 <tr class="GUARDIAN_LOGFILE">
605 <td width='20%' class='base'>$Lang::tr{'guardian logfile'}:</td>
606 <td><input type='text' name='GUARDIAN_LOGFILE' value='$settings{'GUARDIAN_LOGFILE'}' size='30' /></td>
617 <td align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
627 # Function to show elements of the guardian ignorefile and allow to add or remove single members of it.
628 sub showIgnoreBox
() {
629 &Header
::openbox
('100%', 'center', $Lang::tr
{'guardian ignored hosts'});
634 <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'ip address'}</b></td>
635 <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'remark'}</b></td>
636 <td class='base' colspan='3' bgcolor='$color{'color20'}'></td>
639 # Check if some hosts have been add to be ignored.
640 if (keys (%ignored)) {
643 # Loop through all entries of the hash..
644 while( (my $key) = each %ignored) {
645 # Assign data array positions to some nice variable names.
646 my $address = $ignored{$key}[0];
647 my $remark = $ignored{$key}[1];
648 my $status = $ignored{$key}[2];
650 # Check if the key (id) number is even or not.
651 if ($settings{'ID'} eq $key) {
652 $col="bgcolor='${Header::colouryellow}'";
654 $col="bgcolor='$color{'color22'}'";
656 $col="bgcolor='$color{'color20'}'";
659 # Choose icon for the checkbox.
663 # Check if the status is enabled and select the correct image and description.
664 if ($status eq 'enabled' ) {
666 $gdesc = $Lang::tr
{'click to disable'};
669 $gdesc = $Lang::tr
{'click to enable'};
674 <td width='20%' class='base' $col>$address</td>
675 <td width='65%' class='base' $col>$remark</td>
677 <td align='center' $col>
678 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
679 <input type='hidden' name='ACTION' value='$Lang::tr{'toggle enable disable'}' />
680 <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$gif' alt='$gdesc' title='$gdesc' />
681 <input type='hidden' name='ID' value='$key' />
685 <td align='center' $col>
686 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
687 <input type='hidden' name='ACTION' value='$Lang::tr{'edit'}' />
688 <input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' alt='$Lang::tr{'edit'}' title='$Lang::tr{'edit'}' />
689 <input type='hidden' name='ID' value='$key' />
693 <td align='center' $col>
694 <form method='post' name='$key' action='$ENV{'SCRIPT_NAME'}'>
695 <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' title='$Lang::tr{'remove'}' alt='$Lang::tr{'remove'}'>
696 <input type='hidden' name='ID' value='$key'>
697 <input type='hidden' name='ACTION' value='$Lang::tr{'remove'}'>
704 # Print notice that currently no hosts are ignored.
706 print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n";
712 # Section to add new elements or edit existing ones.
722 # Assign correct headline and button text.
727 # Check if an ID (key) has been given, in this case an existing entry should be edited.
728 if ($settings{'ID'} ne '') {
729 $buttontext = $Lang::tr
{'update'};
730 print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'update'}</b></td></tr>\n";
732 # Grab address and remark for the given key.
733 $entry_address = $ignored{$settings{'ID'}}[0];
734 $entry_remark = $ignored{$settings{'ID'}}[1];
736 $buttontext = $Lang::tr
{'add'};
737 print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'dnsforward add a new entry'}</b></td></tr>\n";
741 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
742 <input type='hidden' name='ID' value='$settings{'ID'}'>
744 <td width='30%'>$Lang::tr{'ip address'}: </td>
745 <td width='50%'><input type='text' name='IGNORE_ENTRY_ADDRESS' value='$entry_address' size='24' /></td>
747 <td width='30%'>$Lang::tr{'remark'}: </td>
748 <td wicth='50%'><input type='text' name=IGNORE_ENTRY_REMARK value='$entry_remark' size='24' /></td>
749 <td align='center' width='20%'><input type='submit' name='ACTION' value='$buttontext' /></td>
759 # Function to list currently bocked addresses from guardian and unblock them or add custom entries to block.
760 sub showBlockedBox
() {
761 &Header
::openbox
('100%', 'center', $Lang::tr
{'guardian blocked hosts'});
766 <td colspan='2' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'guardian blocked hosts'}</b></td>
770 # Lauch function to get the currently blocked hosts.
771 my @blocked_hosts = &GetBlockedHosts
();
776 # Loop through our blocked hosts array.
777 foreach my $blocked_host (@blocked_hosts) {
779 # Increase id number for each element in the ignore file.
782 # Check if the id number is even or not.
784 $col="bgcolor='$color{'color22'}'";
786 $col="bgcolor='$color{'color20'}'";
791 <td width='80%' class='base' $col><a href='/cgi-bin/ipinfo.cgi?ip=$blocked_host'>$blocked_host</a></td>
792 <td width='20%' align='center' $col>
793 <form method='post' name='frmb$id' action='$ENV{'SCRIPT_NAME'}'>
794 <input type='image' name='$Lang::tr{'unblock'}' src='/images/delete.gif' title='$Lang::tr{'unblock'}' alt='$Lang::tr{'unblock'}'>
795 <input type='hidden' name='ADDRESS_UNBLOCK' value='$blocked_host'>
796 <input type='hidden' name='ACTION' value='$Lang::tr{'unblock'}'>
803 # If the loop only has been runs once the id still is "0", which means there are no
804 # additional entries (blocked hosts) in the iptables chain.
807 # Print notice that currently no hosts are blocked.
809 print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n";
815 # Section for a manual block of an IP-address.
819 <table width='60%' border='0'>
820 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
822 <td width='30%'>$Lang::tr{'guardian block a host'}: </td>
823 <td width='40%'><input type='text' name='ADDRESS_BLOCK' value='' size='24' /></td>
824 <td align='center' width='15%'><input type='submit' name='ACTION' value='$Lang::tr{'block'}'></td>
825 <td align='center' width='15%'><input type='submit' name='ACTION' value='$Lang::tr{'unblock all'}'></td>
835 &Header
::closebigbox
();
836 &Header
::closepage
();
838 # Function to check if guardian has been started.
839 # Grab process id and consumed memory if the daemon is running.
843 open(FILE
, '/usr/local/bin/addonctrl guardian status | ');
846 $string = join("", @guardian);
847 $string =~ s/[a-z_]//gi;
848 $string =~ s/\[[0-1]\;[0-9]+//gi;
849 $string =~ s/[\(\)\.]//gi;
852 @pid = split(/\s/,$string);
853 if (open(FILE
, "/proc/$pid[0]/statm")){
855 @memory = split(/ /,$temp);
861 sub GetBlockedHosts
() {
862 # Create new, empty array.
865 # Lauch helper to get chains from iptables.
866 system('/usr/local/bin/getipstat');
868 # Open temporary file which contains the chains and rules.
869 open (FILE
, '/srv/web/ipfire/html/iptables.txt');
871 # Loop through the entire file.
875 # Search for the guardian chain and extract
876 # the lines between it and the next empty line
877 # which is placed before the next firewall
879 if ($line =~ /^Chain GUARDIAN/ .. /^\s*$/) {
880 # Skip descriptive lines.
881 next if ($line =~ /^Chain/);
882 next if ($line =~ /^ pkts/);
884 # Generate array, based on the line content (seperator is a single or multiple space's)
885 my @comps = split(/\s{1,}/, $line);
886 my ($lead, $pkts, $bytes, $target, $prot, $opt, $in, $out, $source, $destination) = @comps;
888 # Assign different variable names.
889 my $blocked_host = $source;
891 # Add host to our hosts array.
893 push(@hosts, $blocked_host);
901 # Remove recently created temporary files of the "getipstat" binary.
902 system(rm
-f
"/srv/web/ipfire/html/iptables.txt");
903 system(rm
-f
"/srv/web/ipfire/html/iptablesmangle.txt");
904 system(rm
-f
"/srv/web/ipfire/html/iptablesnat.txt");
906 # Convert entries, sort them, write back and store the sorted entries into new array.
907 my @sorted = map { $_->[0] }
908 sort { $a->[1] <=> $b->[1] }
909 map { [$_, int sprintf("%03.f%03.f%03.f%03.f", split(/\./, $_))] }
912 # Return our sorted list.
916 sub BuildConfiguration
() {
918 &General
::readhash
("${General::swroot}/guardian/settings", \
%settings);
920 my $configfile = "${General::swroot}/guardian/guardian.conf";
922 # Create the configfile if not exist yet.
923 unless (-e
"$configfile") { system("touch $configfile"); }
925 # Open configfile for writing.
926 open(FILE
, ">$configfile");
928 # Config file header.
929 print FILE
"# Autogenerated configuration file.\n";
930 print FILE
"# All user modifications will be overwritten.\n\n";
932 # Settings for the logging mechanism.
933 print FILE
"# Log settings.\n";
934 print FILE
"LogFacility = $settings{'GUARDIAN_LOG_FACILITY'}\n";
936 if ($settings{'GUARDIAN_LOG_FACILITY'} eq "file") {
937 print FILE
"LogFile = $settings{'GUARDIAN_LOGFILE'}\n";
940 print FILE
"LogLevel = $settings{'GUARDIAN_LOGLEVEL'}\n\n";
942 # IPFire related static settings.
943 print FILE
"# IPFire related settings.\n";
944 print FILE
"FirewallEngine = IPtables\n";
945 print FILE
"SocketOwner = nobody:nobody\n";
946 print FILE
"IgnoreFile = $ignorefile\n\n";
948 # Configured block values.
949 print FILE
"# Configured block settings.\n";
950 print FILE
"BlockCount = $settings{'GUARDIAN_BLOCKCOUNT'}\n";
951 print FILE
"BlockTime = $settings{'GUARDIAN_BLOCKTIME'}\n";
952 print FILE
"FirewallAction = $settings{'GUARDIAN_FIREWALL_ACTION'}\n\n";
955 # Loop through whole settings hash.
956 print FILE
"# Enabled modules.\n";
957 foreach my $option (keys %settings) {
958 # Search for enabled modules.
959 if ($option =~ /GUARDIAN_MONITOR_(.*)/) {
960 # Skip if module is not enabled.
961 next unless($settings{$option} eq "on");
963 # Skip module if no file location is available.
964 next unless(exists($module_file_locations{$1}));
966 # Add enabled module and defined path to the config file.
967 print FILE
"Monitor_$1 = $module_file_locations{$1}\n";
972 print FILE
"\n# Module settings.\n";
973 # Check if SNORT is enabled and add snort priority.
974 if ($settings{'GUARDIAN_MONITOR_SNORT'} eq "on") {
975 print FILE
"SnortPriorityLevel = $settings{'GUARDIAN_SNORT_PRIORITY_LEVEL'}\n";
980 # Check if guardian should be started or stopped.
981 if($settings{'GUARDIAN_ENABLED'} eq 'on') {
983 # Send reload command through socket connection.
984 &Guardian
::Socket
::Client
("reload");
987 system("/usr/local/bin/addonctrl guardian start &>/dev/null");
991 system("/usr/local/bin/addonctrl guardian stop &>/dev/null");
995 sub GenerateIgnoreFile
() {
998 # Read-in ignoredfile.
999 &General
::readhasharray
($ignoredfile, \
%ignored);
1001 # Create the guardian.ignore file if not exist yet.
1002 unless (-e
"$ignorefile") { system("touch $ignorefile"); }
1004 # Open ignorefile for writing.
1005 open(FILE
, ">$ignorefile");
1007 # Config file header.
1008 print FILE
"# Autogenerated configuration file.\n";
1009 print FILE
"# All user modifications will be overwritten.\n\n";
1011 # Add IFPire interfaces and gateway to the ignore file.
1013 # Assign some temporary variables for the IPFire interfaces.
1014 my $green = $netsettings{'GREEN_ADDRESS'};
1015 my $blue = $netsettings{'BLUE_ADDRESS'};
1016 my $orange = $netsettings{'ORANGE_ADDRESS'};
1018 # File declarations.
1019 my $public_address_file = "${General::swroot}/red/local-ipaddress";
1020 my $gatewayfile = "${General::swroot}/red/remote-ipaddress";
1021 my $dns1file = "${General::swroot}/red/dns1";
1022 my $dns2file = "${General::swroot}/red/dns2";
1024 # Write the obtained addresses to the ignore file.
1025 print FILE
"# IPFire local interfaces.\n";
1026 print FILE
"$green\n";
1028 # Check if a blue interface exists.
1031 print FILE
"$blue\n";
1034 # Check if an orange interface exists.
1036 # Add orange address.
1037 print FILE
"$orange\n";
1040 print FILE
"\n# IPFire red interface, gateway and used DNS-servers.\n";
1041 print FILE
"# Include the corresponding files to obtain the addresses.\n";
1042 print FILE
"Include_File = $public_address_file\n";
1043 print FILE
"Include_File = $gatewayfile\n";
1044 print FILE
"Include_File = $dns1file\n";
1045 print FILE
"Include_File = $dns2file\n";
1047 # Add all user defined hosts and networks to the ignore file.
1049 # Check if the hash contains any elements.
1050 if (keys (%ignored)) {
1052 print FILE
"\n# User defined hosts/networks.\n";
1054 # Loop through the entire hash and write the host/network
1055 # and remark to the ignore file.
1056 while ( (my $key) = each %ignored) {
1057 my $address = $ignored{$key}[0];
1058 my $remark = $ignored{$key}[1];
1059 my $status = $ignored{$key}[2];
1061 # Check if the status of the entry is "enabled".
1062 if ($status eq "enabled") {
1063 # Check if the address/network is valid.
1064 if ((&General
::validip
($address)) || (&General
::validipandmask
($address))) {
1065 # Write the remark to the file.
1066 print FILE
"# $remark\n";
1068 # Write the address/network to the ignore file.
1069 print FILE
"$address\n\n";
1078 # Private subfunction to obtain IP-addresses from given file names.
1080 sub _get_address_from_file
($) {
1083 # Check if the file exists.
1085 # Open the given file.
1086 open(FILE
, "$file") or die "Could not open $file.";
1088 # Obtain the address from the first line of the file.
1089 my $address = <FILE
>;
1097 # Check if the grabbed address is valid.
1098 if (&General
::validip
($address)) {
1099 # Return the address.