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01dbccb1 SS |
1 | #!/usr/bin/perl |
2 | ############################################################################### | |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
5 | # Copyright (C) 2014 IPFire Team <info@ipfire.org> # | |
6 | # # | |
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. # | |
11 | # # | |
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. # | |
16 | # # | |
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/>. # | |
19 | # # | |
20 | ############################################################################### | |
21 | ||
22 | use strict; | |
23 | use Locale::Country; | |
24 | ||
25 | # enable only the following on debugging purpose | |
26 | use warnings; | |
27 | use CGI::Carp 'fatalsToBrowser'; | |
28 | ||
29 | require '/var/ipfire/general-functions.pl'; | |
30 | require "${General::swroot}/lang.pl"; | |
31 | require "${General::swroot}/header.pl"; | |
32 | ||
33 | #workaround to suppress a warning when a variable is used only once | |
34 | my @dummy = ( ${Header::colouryellow} ); | |
35 | undef (@dummy); | |
36 | ||
37 | my $string=(); | |
38 | my $memory=(); | |
39 | my @memory=(); | |
40 | my @pid=(); | |
41 | my @guardian=(); | |
01dbccb1 SS |
42 | |
43 | # Path to the guardian.ignore file. | |
44 | my $ignorefile ='/var/ipfire/guardian/guardian.ignore'; | |
45 | ||
01dbccb1 SS |
46 | our %netsettings = (); |
47 | &General::readhash("${General::swroot}/ethernet/settings", \%netsettings); | |
48 | ||
49 | our %color = (); | |
50 | our %mainsettings = (); | |
51 | &General::readhash("${General::swroot}/main/settings", \%mainsettings); | |
52 | &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color); | |
53 | ||
54 | our %settings = (); | |
55 | ||
56 | $settings{'GUARDIAN_ENABLED'} = 'off'; | |
26fcd31e SS |
57 | $settings{'GUARDIAN_ENABLE_SNORT'} = 'on'; |
58 | $settings{'GUARDIAN_ENABLE_SSH'} = 'on'; | |
59 | $settings{'GUARDIAN_ENABLE_HTTPD'} = 'on'; | |
a35a0668 SS |
60 | $settings{'GUARDIAN_LOGLEVEL'} = 'info'; |
61 | $settings{'GUARDIAN_BLOCKCOUNT'} = '3'; | |
01dbccb1 SS |
62 | $settings{'GUARDIAN_BLOCKTIME'} = '86400'; |
63 | $settings{'GUARDIAN_LOGFILE'} = '/var/log/guardian/guardian.log'; | |
64 | $settings{'GUARDIAN_SNORT_ALERTFILE'} = '/var/log/snort/alert'; | |
4a7fc9f6 | 65 | $settings{'GUARDIAN_PRIORITY_LEVEL'} = '3'; |
01dbccb1 SS |
66 | |
67 | $settings{'ACTION'} = ''; | |
68 | ||
69 | my $errormessage = ''; | |
70 | ||
71 | &Header::showhttpheaders(); | |
72 | ||
73 | # Get GUI values. | |
74 | &Header::getcgihash(\%settings); | |
01dbccb1 | 75 | |
f8c3bfe0 SS |
76 | # Check if guardian is running and grab some stats. |
77 | &daemonstats(); | |
78 | my $pid = @pid[0]; | |
79 | ||
01dbccb1 SS |
80 | ## Perform input checks and save settings. |
81 | # | |
82 | if ($settings{'ACTION'} eq $Lang::tr{'save'}) { | |
01dbccb1 | 83 | # Check for valid blocktime. |
96655fa6 | 84 | unless(($settings{'GUARDIAN_BLOCKTIME'} =~ /^\d+$/) && ($settings{'GUARDIAN_BLOCKTIME'} ne "0")) { |
01dbccb1 | 85 | $errormessage = "$Lang::tr{'guardian invalid blocktime'}"; |
a35a0668 SS |
86 | } |
87 | ||
88 | # Check if the bloccount is valid. | |
96655fa6 | 89 | unless(($settings{'GUARDIAN_BLOCKCOUNT'} =~ /^\d+$/) && ($settings{'GUARDIAN_BLOCKCOUNT'} ne "0")) { |
a35a0668 | 90 | $errormessage = "$Lang::tr{'guardian invalid blockcount'}"; |
01dbccb1 SS |
91 | } |
92 | ||
93 | # Check Logfile. | |
96655fa6 | 94 | unless($settings{'GUARDIAN_LOGFILE'} =~ /^[a-zA-Z0-9\.\/]+$/) { |
a35a0668 | 95 | $errormessage = "$Lang::tr{'guardian invalid logfile'}"; |
01dbccb1 SS |
96 | } |
97 | ||
98 | # Check input for snort alert file. | |
96655fa6 | 99 | unless($settings{'GUARDIAN_SNORT_ALERTFILE'} =~ /^[a-zA-Z0-9\.\/]+$/) { |
a35a0668 SS |
100 | $errormessage = "$Lang::tr{'guardian invalid alertfile'}"; |
101 | } | |
01dbccb1 SS |
102 | |
103 | # Only continue if no error message has been set. | |
96655fa6 | 104 | if($errormessage eq '') { |
01dbccb1 SS |
105 | # Write configuration settings to file. |
106 | &General::writehash("${General::swroot}/guardian/settings", \%settings); | |
107 | ||
108 | # Update configuration files. | |
109 | &BuildConfiguration(); | |
110 | } | |
111 | ||
112 | ## Add a new entry to the ignore file. | |
113 | # | |
114 | } elsif ($settings{'ACTION'} eq $Lang::tr{'add'}) { | |
115 | ||
116 | # Check if any input has been performed. | |
117 | if ($settings{'NEW_IGNORE_ENTRY'} ne '') { | |
118 | ||
119 | # Check if the given input is no valid IP-address or IP-address with subnet, display an error message. | |
120 | if ((!&General::validip($settings{'NEW_IGNORE_ENTRY'})) && (!&General::validipandmask($settings{'NEW_IGNORE_ENTRY'}))) { | |
121 | $errormessage = "$Lang::tr{'guardian invalid address or subnet'}"; | |
122 | } | |
123 | } else { | |
124 | $errormessage = "$Lang::tr{'guardian empty input'}"; | |
125 | } | |
126 | ||
127 | # Go further if there was no error. | |
128 | if ($errormessage eq '') { | |
129 | my $new_entry = $settings{'NEW_IGNORE_ENTRY'}; | |
130 | ||
131 | # Open file for appending the new entry. | |
132 | open (FILE, ">>$ignorefile") or die "Unable to open $ignorefile for writing"; | |
133 | ||
134 | # Write the new entry to the ignore file. | |
135 | print FILE "$new_entry\n"; | |
136 | close(FILE); | |
137 | } | |
138 | ||
f8c3bfe0 SS |
139 | # Check if guardian is running. |
140 | if ($pid > 0) { | |
141 | # Call guardianctrl to perform a reload. | |
142 | system("/usr/local/bin/guardianctrl reload &>/dev/null"); | |
143 | } | |
144 | ||
01dbccb1 SS |
145 | ## Remove entry from ignore list. |
146 | # | |
147 | } elsif ($settings{'ACTION'} eq $Lang::tr{'remove'}) { | |
148 | my $id = 0; | |
149 | ||
150 | # Open ignorefile and read content. | |
151 | open(FILE, "<$ignorefile") or die "Unable to open $ignorefile."; | |
152 | my @current = <FILE>; | |
153 | close(FILE); | |
154 | ||
155 | # Re-open ignorefile for writing. | |
156 | open(FILE, ">$ignorefile") or die "Unable to open $ignorefile for writing"; | |
157 | flock FILE, 2; | |
158 | ||
159 | # Read line by line from ignorefile and write them back except the line with the given ID. | |
160 | # So this line is missing in the new file and the entry has been deleted. | |
161 | foreach my $line (@current) { | |
162 | $id++; | |
a35a0668 | 163 | unless ($settings{'ID'} eq $id) { |
01dbccb1 SS |
164 | print FILE "$line"; |
165 | } | |
166 | } | |
167 | close(FILE); | |
168 | ||
f8c3bfe0 SS |
169 | # Check if guardian is running. |
170 | if ($pid > 0) { | |
171 | # Call guardianctrl to perform a reload. | |
172 | system("/usr/local/bin/guardianctrl reload &>/dev/null"); | |
173 | } | |
174 | ||
01dbccb1 SS |
175 | ## Block a user given address or subnet. |
176 | # | |
177 | } elsif ($settings{'ACTION'} eq $Lang::tr{'block'}) { | |
178 | ||
179 | # Check if no empty input has been performed. | |
180 | if ($settings{'ADDRESS_BLOCK'} ne '') { | |
181 | ||
182 | # Check if the given input is no valid IP-address or IP-address with subnet, display an error message. | |
183 | if ((!&General::validip($settings{'ADDRESS_BLOCK'})) && (!&General::validipandmask($settings{'ADDRESS_BLOCK'}))) { | |
184 | $errormessage = "$Lang::tr{'guardian invalid address or subnet'}"; | |
185 | } | |
186 | ||
187 | } else { | |
188 | $errormessage = "$Lang::tr{'guardian empty input'}"; | |
189 | } | |
190 | ||
191 | # Go further if there was no error. | |
192 | if ($errormessage eq '') { | |
193 | my $block = $settings{'ADDRESS_BLOCK'}; | |
194 | ||
195 | # Call helper to unblock address. | |
196 | system("/usr/local/bin/guardianctrl block $block &>/dev/null"); | |
197 | } | |
198 | ||
199 | ## Unblock address or subnet. | |
200 | # | |
201 | } elsif ($settings{'ACTION'} eq $Lang::tr{'unblock'}) { | |
202 | ||
203 | # Check if no empty input has been performed. | |
204 | if ($settings{'ADDRESS_UNBLOCK'} ne '') { | |
205 | ||
206 | # Check if the given input is no valid IP-address or IP-address with subnet, display an error message. | |
207 | if ((!&General::validip($settings{'ADDRESS_UNBLOCK'})) && (!&General::validipandmask($settings{'ADDRESS_UNBLOCK'}))) { | |
208 | $errormessage = "$Lang::tr{'guardian invalid address or subnet'}"; | |
209 | } | |
210 | ||
211 | } else { | |
212 | $errormessage = "$Lang::tr{'guardian empty input'}"; | |
213 | } | |
214 | ||
215 | # Go further if there was no error. | |
216 | if ($errormessage eq '') { | |
217 | my $unblock = $settings{'ADDRESS_UNBLOCK'}; | |
218 | ||
219 | # Call helper to unblock address. | |
220 | system("/usr/local/bin/guardianctrl unblock $unblock &>/dev/null"); | |
221 | } | |
222 | ||
223 | ## Unblock all. | |
224 | # | |
225 | } elsif ($settings{'ACTION'} eq $Lang::tr{'unblock all'}) { | |
226 | ||
227 | # Call helper to flush iptables chain from guardian. | |
228 | system("/usr/local/bin/guardianctrl flush-chain &>/dev/null"); | |
229 | ||
230 | } else { | |
231 | # Load settings from file. | |
232 | &General::readhash("${General::swroot}/guardian/settings", \%settings); | |
233 | } | |
234 | ||
235 | ||
236 | # Call functions to generate whole page. | |
237 | &showMainBox(); | |
238 | &showIgnoreBox(); | |
239 | ||
240 | # Display area only if guardian is running. | |
f8c3bfe0 | 241 | if ( ($memory != 0) && ($pid > 0) ) { |
01dbccb1 SS |
242 | &showBlockedBox(); |
243 | } | |
244 | ||
245 | # Function to display the status of guardian and allow base configuration. | |
246 | sub showMainBox() { | |
247 | my %checked = (); | |
7899718f | 248 | my %selected = (); |
01dbccb1 SS |
249 | |
250 | $checked{'GUARDIAN_ENABLED'}{'on'} = ''; | |
251 | $checked{'GUARDIAN_ENABLED'}{'off'} = ''; | |
252 | $checked{'GUARDIAN_ENABLED'}{$settings{'GUARDIAN_ENABLED'}} = 'checked'; | |
26fcd31e SS |
253 | $checked{'GUARDIAN_ENABLE_SNORT'}{'off'} = ''; |
254 | $checked{'GUARDIAN_ENABLE_SNORT'}{'on'} = ''; | |
255 | $checked{'GUARDIAN_ENABLE_SNORT'}{$settings{'GUARDIAN_ENABLE_SNORT'}} = "checked='checked'"; | |
256 | $checked{'GUARDIAN_ENABLE_SSH'}{'off'} = ''; | |
257 | $checked{'GUARDIAN_ENABLE_SSH'}{'on'} = ''; | |
258 | $checked{'GUARDIAN_ENABLE_SSH'}{$settings{'GUARDIAN_ENABLE_SSH'}} = "checked='checked'"; | |
259 | $checked{'GUARDIAN_ENABLE_HTTPD'}{'off'} = ''; | |
260 | $checked{'GUARDIAN_ENABLE_HTTPD'}{'on'} = ''; | |
261 | $checked{'GUARDIAN_ENABLE_HTTPD'}{$settings{'GUARDIAN_ENABLE_HTTPD'}} = "checked='checked'"; | |
01dbccb1 | 262 | |
4a7fc9f6 SS |
263 | $selected{'GUARDIAN_LOGLEVEL'}{$settings{'GUARDIAN_LOGLEVEL'}} = 'selected'; |
264 | $selected{'GUARDIAN_PRIORITY_LEVEL'}{$settings{'GUARDIAN_PRIORITY_LEVEL'}} = 'selected'; | |
7899718f | 265 | |
01dbccb1 SS |
266 | &Header::openpage($Lang::tr{'guardian configuration'}, 1, ''); |
267 | &Header::openbigbox('100%', 'left', '', $errormessage); | |
268 | ||
269 | # Print errormessage if there is one. | |
270 | if ($errormessage) { | |
271 | &Header::openbox('100%', 'left', $Lang::tr{'error messages'}); | |
272 | print "<font class='base'>$errormessage </font>\n"; | |
273 | &Header::closebox(); | |
274 | } | |
275 | ||
276 | ||
277 | # Draw current guardian state. | |
278 | &Header::openbox('100%', 'center', $Lang::tr{'guardian'}); | |
279 | ||
f8c3bfe0 | 280 | # Get current status of guardian. |
01dbccb1 | 281 | &daemonstats(); |
f8c3bfe0 | 282 | $pid = @pid[0]; |
01dbccb1 SS |
283 | |
284 | # Display some useful information related to guardian, if daemon is running. | |
f8c3bfe0 | 285 | if ( ($memory != 0) && ($pid > 0) ){ |
01dbccb1 SS |
286 | print <<END; |
287 | <table width='95%' cellspacing='0' class='tbl'> | |
288 | <tr> | |
289 | <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'guardian service'}</strong></th> | |
290 | </tr> | |
291 | <tr> | |
292 | <td class='base'>$Lang::tr{'guardian daemon'}</td> | |
293 | <td align='center' colspan='2' width='75%' bgcolor='${Header::colourgreen}'><font color='white'><strong>$Lang::tr{'running'}</strong></font></td> | |
294 | </tr> | |
295 | <tr> | |
296 | <td class='base'></td> | |
297 | <td bgcolor='$color{'color20'}' align='center'><strong>PID</strong></td> | |
298 | <td bgcolor='$color{'color20'}' align='center'><strong>$Lang::tr{'memory'}</strong></td> | |
299 | </tr> | |
300 | <tr> | |
301 | <td class='base'></td> | |
302 | <td bgcolor='$color{'color22'}' align='center'>@pid[0]</td> | |
303 | <td bgcolor='$color{'color22'}' align='center'>$memory KB</td> | |
304 | </tr> | |
305 | </table> | |
306 | END | |
307 | } else { | |
308 | # Otherwise display a hint that the service is not launched. | |
309 | print <<END; | |
310 | <table width='95%' cellspacing='0' class='tbl'> | |
311 | <tr> | |
312 | <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'guardian service'}</strong></th> | |
313 | </tr> | |
314 | <tr> | |
315 | <td class='base'>$Lang::tr{'guardian daemon'}</td> | |
316 | <td align='center' width='75%' bgcolor='${Header::colourred}'><font color='white'><strong>$Lang::tr{'stopped'}</strong></font></td> | |
317 | </tr> | |
318 | </table> | |
319 | END | |
320 | } | |
321 | ||
322 | &Header::closebox(); | |
323 | ||
324 | # Draw elements for guardian configuration. | |
325 | &Header::openbox('100%', 'center', $Lang::tr{'guardian configuration'}); | |
326 | ||
327 | print <<END; | |
328 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> | |
329 | ||
330 | <table width='95%'> | |
331 | <tr> | |
d2fea55e | 332 | <td colspan='2' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'guardian common settings'}</b></td> |
01dbccb1 SS |
333 | </tr> |
334 | <tr> | |
335 | <td width='20%' class='base'>$Lang::tr{'guardian enabled'}:</td> | |
d2fea55e | 336 | <td><input type='checkbox' name='GUARDIAN_ENABLED' $checked{'GUARDIAN_ENABLED'}{'on'} /></td> |
01dbccb1 | 337 | </tr> |
26fcd31e SS |
338 | <tr> |
339 | <td colspan='2'><br></td> | |
340 | </tr> | |
341 | <tr> | |
06ff7e28 | 342 | <td width='20%' class='base'>$Lang::tr{'guardian watch snort alertfile'}</td> |
26fcd31e SS |
343 | <td align='left'>on <input type='radio' name='GUARDIAN_ENABLE_SNORT' value='on' $checked{'GUARDIAN_ENABLE_SNORT'}{'on'} /> / |
344 | <input type='radio' name='GUARDIAN_ENABLE_SNORT' value='off' $checked{'GUARDIAN_ENABLE_SNORT'}{'off'} /> off</td> | |
345 | </tr> | |
346 | <tr> | |
06ff7e28 | 347 | <td width='20%' class='base'>$Lang::tr{'guardian block ssh brute-force'}</td> |
26fcd31e SS |
348 | <td align='left'>on <input type='radio' name='GUARDIAN_ENABLE_SSH' value='on' $checked{'GUARDIAN_ENABLE_SSH'}{'on'} /> / |
349 | <input type='radio' name='GUARDIAN_ENABLE_SSH' value='off' $checked{'GUARDIAN_ENABLE_SSH'}{'off'} /> off</td> | |
350 | </tr> | |
351 | <tr> | |
06ff7e28 | 352 | <td width='20%' class='base'>$Lang::tr{'guardian block httpd brute-force'}</td> |
26fcd31e SS |
353 | <td align='left'>on <input type='radio' name='GUARDIAN_ENABLE_HTTPD' value='on' $checked{'GUARDIAN_ENABLE_HTTPD'}{'on'} /> / |
354 | <input type='radio' name='GUARDIAN_ENABLE_HTTPD' value='off' $checked{'GUARDIAN_ENABLE_HTTPD'}{'off'} /> off</td> | |
355 | </tr> | |
356 | <tr> | |
357 | <td colspan='2'><br></td> | |
358 | </tr> | |
7899718f | 359 | <tr> |
a35a0668 | 360 | <td align='left' width='20%'>$Lang::tr{'guardian loglevel'}:</td> |
7899718f SS |
361 | <td><select name='GUARDIAN_LOGLEVEL'> |
362 | <option value='off' $selected{'GUARDIAN_LOGLEVEL'}{'off'}>off</option> | |
363 | <option value='info' $selected{'GUARDIAN_LOGLEVEL'}{'info'}>info</option> | |
364 | <option value='debug' $selected{'GUARDIAN_LOGLEVEL'}{'debug'}>debug</option> | |
365 | </select></td> | |
366 | </tr> | |
a35a0668 SS |
367 | <tr> |
368 | <td colspan='2'><br></td> | |
369 | </tr> | |
4a7fc9f6 SS |
370 | <tr> |
371 | <td align='left' width='20%'>$Lang::tr{'guardian priority level'}:</td> | |
372 | <td><select name='GUARDIAN_PRIORITY_LEVEL'> | |
373 | <option value='1' $selected{'GUARDIAN_PRIORITY_LEVEL'}{'1'}>1</option> | |
374 | <option value='2' $selected{'GUARDIAN_PRIORITY_LEVEL'}{'2'}>2</option> | |
375 | <option value='3' $selected{'GUARDIAN_PRIORITY_LEVEL'}{'3'}>3</option> | |
376 | <option value='4' $selected{'GUARDIAN_PRIORITY_LEVEL'}{'4'}>4</option> | |
377 | </select></td> | |
378 | </tr> | |
379 | <tr> | |
380 | <td colspan='2'><br></td> | |
381 | </tr> | |
a35a0668 SS |
382 | <tr> |
383 | <td width='20%' class='base'>$Lang::tr{'guardian blockcount'}:</td> | |
384 | <td><input type='text' name='GUARDIAN_BLOCKCOUNT' value='$settings{'GUARDIAN_BLOCKCOUNT'}' size='5' /></td> | |
385 | </tr> | |
01dbccb1 SS |
386 | <tr> |
387 | <td width='20%' class='base'>$Lang::tr{'guardian blocktime'}:</td> | |
d2fea55e | 388 | <td><input type='text' name='GUARDIAN_BLOCKTIME' value='$settings{'GUARDIAN_BLOCKTIME'}' size='10' /></td> |
01dbccb1 SS |
389 | </tr> |
390 | <tr> | |
391 | <td width='20%' class='base'>$Lang::tr{'guardian logfile'}:</td> | |
d2fea55e | 392 | <td><input type='text' name='GUARDIAN_LOGFILE' value='$settings{'GUARDIAN_LOGFILE'}' size='30' /></td> |
01dbccb1 SS |
393 | </tr> |
394 | <tr> | |
395 | <td width='20%' class='base'>$Lang::tr{'guardian snort alertfile'}:</td> | |
d2fea55e | 396 | <td><input type='text' name='GUARDIAN_SNORT_ALERTFILE' value='$settings{'GUARDIAN_SNORT_ALERTFILE'}' size='30' /></td> |
01dbccb1 SS |
397 | </tr> |
398 | </table> | |
399 | END | |
400 | ||
401 | print <<END; | |
402 | <hr> | |
403 | ||
404 | <table width='95%'> | |
405 | <tr> | |
406 | <td> </td> | |
407 | <td align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td> | |
408 | <td> </td> | |
409 | </tr> | |
410 | </table> | |
411 | </form> | |
412 | END | |
413 | ||
414 | &Header::closebox(); | |
415 | } | |
416 | ||
417 | # Function to show elements of the guardian ignorefile and allow to add or remove single members of it. | |
418 | sub showIgnoreBox() { | |
419 | &Header::openbox('100%', 'center', $Lang::tr{'guardian ignored hosts'}); | |
420 | ||
421 | print <<END; | |
422 | <table width='60%'> | |
423 | <tr> | |
424 | <td colspan='2' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'guardian ignored hosts'}</b></td> | |
425 | </tr> | |
426 | END | |
427 | # Check if the guardian ignore file contains any content. | |
428 | if (-s $ignorefile) { | |
429 | ||
430 | # Open file and print contents. | |
431 | open FILE, $ignorefile or die "Could not open $ignorefile"; | |
432 | ||
433 | my $id = 0; | |
434 | my $col = ""; | |
435 | ||
436 | # Read file line by line and print out the elements. | |
437 | while( my $ignored_element = <FILE> ) { | |
438 | ||
439 | # Increase id number for each element in the ignore file. | |
440 | $id++; | |
441 | ||
442 | # Check if the id number is even or not. | |
443 | if ($id % 2) { | |
444 | $col="bgcolor='$color{'color22'}'"; | |
445 | } else { | |
446 | $col="bgcolor='$color{'color20'}'"; | |
447 | } | |
448 | ||
449 | print <<END; | |
450 | <tr> | |
451 | <td width='80%' class='base' $col>$ignored_element</td> | |
452 | <td width='20%' align='center' $col> | |
a35a0668 | 453 | <form method='post' name='$id' action='$ENV{'SCRIPT_NAME'}'> |
01dbccb1 SS |
454 | <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' title='$Lang::tr{'remove'}' alt='$Lang::tr{'remove'}'> |
455 | <input type='hidden' name='ID' value='$id'> | |
456 | <input type='hidden' name='ACTION' value='$Lang::tr{'remove'}'> | |
457 | </form> | |
458 | </td> | |
459 | </tr> | |
460 | END | |
461 | } | |
462 | close (FILE); | |
463 | } else { | |
464 | # Print notice that currently no elements are stored in the ignore file. | |
465 | print "<tr>\n"; | |
466 | print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n"; | |
467 | print "</tr>\n"; | |
468 | } | |
469 | ||
470 | print "</table>\n"; | |
471 | ||
01dbccb1 SS |
472 | # Section to add new elements to the ignore list. |
473 | print <<END; | |
1d5702a7 SS |
474 | <br> |
475 | <div align='center'> | |
01dbccb1 SS |
476 | <table width='60%'> |
477 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> | |
478 | <tr> | |
479 | <td width='30%'>$Lang::tr{'dnsforward add a new entry'}: </td> | |
480 | <td width='50%'><input type='text' name='NEW_IGNORE_ENTRY' value='' size='24' /></td> | |
481 | <td align='center' width='20%'><input type='submit' name='ACTION' value='$Lang::tr{'add'}' /></td> | |
482 | </tr> | |
483 | </form> | |
484 | </table> | |
485 | </div> | |
486 | END | |
1d5702a7 SS |
487 | |
488 | &Header::closebox(); | |
01dbccb1 SS |
489 | } |
490 | ||
491 | # Function to list currently bocked addresses from guardian and unblock them or add custom entries to block. | |
492 | sub showBlockedBox() { | |
493 | &Header::openbox('100%', 'center', $Lang::tr{'guardian blocked hosts'}); | |
494 | ||
01dbccb1 SS |
495 | print <<END; |
496 | <table width='60%'> | |
497 | <tr> | |
498 | <td colspan='2' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'guardian blocked hosts'}</b></td> | |
499 | </tr> | |
500 | END | |
501 | ||
5f462919 SS |
502 | # Lauch function to get the currently blocked hosts. |
503 | my @blocked_hosts = &GetBlockedHosts(); | |
504 | ||
01dbccb1 | 505 | my $id = 0; |
01dbccb1 | 506 | my $col = ""; |
01dbccb1 | 507 | |
5f462919 SS |
508 | # Loop through our blocked hosts array. |
509 | foreach my $blocked_host (@blocked_hosts) { | |
01dbccb1 SS |
510 | |
511 | # Increase id number for each element in the ignore file. | |
512 | $id++; | |
513 | ||
514 | # Check if the id number is even or not. | |
515 | if ($id % 2) { | |
516 | $col="bgcolor='$color{'color22'}'"; | |
517 | } else { | |
518 | $col="bgcolor='$color{'color20'}'"; | |
519 | } | |
520 | ||
521 | print <<END; | |
522 | <tr> | |
8b8413e5 | 523 | <td width='80%' class='base' $col><a href='/cgi-bin/ipinfo.cgi?ip=$blocked_host'>$blocked_host</a></td> |
01dbccb1 SS |
524 | <td width='20%' align='center' $col> |
525 | <form method='post' name='frmb$id' action='$ENV{'SCRIPT_NAME'}'> | |
526 | <input type='image' name='$Lang::tr{'unblock'}' src='/images/delete.gif' title='$Lang::tr{'unblock'}' alt='$Lang::tr{'unblock'}'> | |
527 | <input type='hidden' name='ADDRESS_UNBLOCK' value='$blocked_host'> | |
528 | <input type='hidden' name='ACTION' value='$Lang::tr{'unblock'}'> | |
529 | </form> | |
530 | </td> | |
531 | </tr> | |
532 | END | |
533 | } | |
534 | ||
01dbccb1 SS |
535 | # If the loop only has been runs once the id still is "0", which means there are no |
536 | # additional entries (blocked hosts) in the iptables chain. | |
537 | if ($id == 0) { | |
538 | ||
539 | # Print notice that currently no hosts are blocked. | |
540 | print "<tr>\n"; | |
541 | print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n"; | |
542 | print "</tr>\n"; | |
543 | } | |
544 | ||
545 | print "</table>\n"; | |
546 | ||
01dbccb1 SS |
547 | # Section for a manual block of an IP-address. |
548 | print <<END; | |
1d5702a7 SS |
549 | <br> |
550 | <div align='center'> | |
551 | <table width='60%' border='0'> | |
01dbccb1 SS |
552 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> |
553 | <tr> | |
554 | <td width='30%'>$Lang::tr{'guardian block a host'}: </td> | |
555 | <td width='40%'><input type='text' name='ADDRESS_BLOCK' value='' size='24' /></td> | |
556 | <td align='center' width='15%'><input type='submit' name='ACTION' value='$Lang::tr{'block'}'></td> | |
557 | <td align='center' width='15%'><input type='submit' name='ACTION' value='$Lang::tr{'unblock all'}'></td> | |
558 | </tr> | |
559 | </form> | |
560 | </table> | |
561 | </div> | |
562 | END | |
1d5702a7 SS |
563 | |
564 | &Header::closebox(); | |
01dbccb1 SS |
565 | } |
566 | ||
567 | &Header::closebigbox(); | |
568 | &Header::closepage(); | |
569 | ||
570 | # Function to check if guardian has been started. | |
571 | # Grab process id and consumed memory if the daemon is running. | |
572 | sub daemonstats() { | |
573 | $memory = 0; | |
574 | # for pid and memory | |
575 | open(FILE, '/usr/local/bin/addonctrl guardian status | '); | |
576 | @guardian = <FILE>; | |
577 | close(FILE); | |
578 | $string = join("", @guardian); | |
579 | $string =~ s/[a-z_]//gi; | |
580 | $string =~ s/\[[0-1]\;[0-9]+//gi; | |
581 | $string =~ s/[\(\)\.]//gi; | |
582 | $string =~ s/ //gi; | |
583 | $string =~ s/\e//gi; | |
584 | @pid = split(/\s/,$string); | |
585 | if (open(FILE, "/proc/$pid[0]/statm")){ | |
586 | my $temp = <FILE>; | |
587 | @memory = split(/ /,$temp); | |
588 | close(FILE); | |
589 | } | |
590 | $memory+=$memory[0]; | |
591 | } | |
592 | ||
5f462919 SS |
593 | sub GetBlockedHosts() { |
594 | ||
595 | # Create new, empty array. | |
596 | my @hosts; | |
597 | ||
598 | # Lauch helper to get chains from iptables. | |
599 | open(FILE, "/usr/local/bin/guardianctrl get-chain |"); | |
600 | ||
601 | # Read file line by line and print out the elements. | |
602 | foreach my $line (<FILE>) { | |
603 | ||
604 | # Skip descriptive lines. | |
605 | next if ($line =~ /^Chain/); | |
606 | next if ($line =~ /^ pkts/); | |
607 | ||
608 | # Generate array, based on the line content (seperator is a single or multiple space's) | |
609 | my @comps = split(/\s{1,}/, $line); | |
610 | my ($lead, $pkts, $bytes, $target, $prot, $opt, $in, $out, $source, $destination) = @comps; | |
611 | ||
612 | # Assign different variable names. | |
613 | my $blocked_host = $source; | |
614 | ||
615 | # Add host to our hosts array. | |
616 | push(@hosts, $blocked_host); | |
617 | } | |
618 | ||
619 | # Convert entries, sort them, write back and store the sorted entries into new array. | |
620 | my @sorted = map { $_->[0] } | |
621 | sort { $a->[1] <=> $b->[1] } | |
622 | map { [$_, int sprintf("%03.f%03.f%03.f%03.f", split(/\./, $_))] } | |
623 | @hosts; | |
624 | ||
625 | # Return our sorted list. | |
626 | return @sorted | |
627 | } | |
628 | ||
01dbccb1 SS |
629 | sub BuildConfiguration() { |
630 | my %settings = (); | |
631 | &General::readhash("${General::swroot}/guardian/settings", \%settings); | |
632 | ||
633 | my $configfile = "${General::swroot}/guardian/guardian.conf"; | |
634 | ||
7f728591 SS |
635 | # We set this to 1 (enabled) to prevent guardian from blocking the ISP gateway. |
636 | my $HostGatewayByte = "1"; | |
637 | ||
7f728591 | 638 | # Open configfile for writing. |
01dbccb1 SS |
639 | open(FILE, ">$configfile"); |
640 | ||
26fcd31e SS |
641 | print FILE "EnableSnortMonitoring $settings{'GUARDIAN_ENABLE_SNORT'}\n"; |
642 | print FILE "EnableSSHMonitoring $settings{'GUARDIAN_ENABLE_SSH'}\n"; | |
643 | print FILE "EnableHTTPDMonitoring $settings{'GUARDIAN_ENABLE_HTTPD'}\n"; | |
7899718f | 644 | print FILE "LogLevel $settings{'GUARDIAN_LOGLEVEL'}\n"; |
a35a0668 | 645 | print FILE "BlockCount $settings{'GUARDIAN_BLOCKCOUNT'}\n"; |
26fcd31e SS |
646 | print FILE "HostGatewayByte $HostGatewayByte\n"; |
647 | print FILE "LogFile $settings{'GUARDIAN_LOGFILE'}\n"; | |
648 | print FILE "AlertFile $settings{'GUARDIAN_SNORT_ALERTFILE'}\n"; | |
649 | print FILE "IgnoreFile $ignorefile\n"; | |
26fcd31e | 650 | print FILE "TimeLimit $settings{'GUARDIAN_BLOCKTIME'}\n"; |
4a7fc9f6 | 651 | print FILE "PriorityLevel $settings{'GUARDIAN_PRIORITY_LEVEL'}\n"; |
01dbccb1 SS |
652 | |
653 | close(FILE); | |
654 | ||
f8c3bfe0 SS |
655 | # Check if guardian should be started or stopped. |
656 | if($settings{'GUARDIAN_ENABLED'} eq 'on') { | |
657 | if($pid > 0) { | |
658 | # Call guardianctl to perform a reload. | |
659 | system("/usr/local/bin/guardianctrl reload &>/dev/null"); | |
660 | } else { | |
661 | # Launch guardian. | |
662 | system("/usr/local/bin/guardianctrl start &>/dev/null"); | |
663 | } | |
01dbccb1 | 664 | } else { |
f8c3bfe0 | 665 | # Stop the daemon. |
01dbccb1 SS |
666 | system("/usr/local/bin/guardianctrl stop &>/dev/null"); |
667 | } | |
668 | } |