]>
Commit | Line | Data |
---|---|---|
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=(); | |
42 | my %cgiparams=(); | |
43 | ||
44 | # Path to the guardian.ignore file. | |
45 | my $ignorefile ='/var/ipfire/guardian/guardian.ignore'; | |
46 | ||
47 | # Path to the guardian.target file. | |
48 | my $targetfile ='/var/ipfire/guardian/guardian.ignore'; | |
49 | ||
50 | our %netsettings = (); | |
51 | &General::readhash("${General::swroot}/ethernet/settings", \%netsettings); | |
52 | ||
53 | our %color = (); | |
54 | our %mainsettings = (); | |
55 | &General::readhash("${General::swroot}/main/settings", \%mainsettings); | |
56 | &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color); | |
57 | ||
58 | our %settings = (); | |
59 | ||
60 | $settings{'GUARDIAN_ENABLED'} = 'off'; | |
61 | $settings{'GUARDIAN_BLOCKINTERFACES'} ='default'; | |
62 | $settings{'GUARDIAN_BLOCKTIME'} = '86400'; | |
63 | $settings{'GUARDIAN_LOGFILE'} = '/var/log/guardian/guardian.log'; | |
64 | $settings{'GUARDIAN_SNORT_ALERTFILE'} = '/var/log/snort/alert'; | |
65 | ||
66 | $settings{'ACTION'} = ''; | |
67 | ||
68 | my $errormessage = ''; | |
69 | ||
70 | &Header::showhttpheaders(); | |
71 | ||
72 | # Get GUI values. | |
73 | &Header::getcgihash(\%settings); | |
74 | &Header::getcgihash(\%cgiparams); | |
75 | ||
76 | ## Perform input checks and save settings. | |
77 | # | |
78 | if ($settings{'ACTION'} eq $Lang::tr{'save'}) { | |
79 | ||
80 | # Check for valid blocktime. | |
81 | if ($settings{'GUARDIAN_BLOCKTIME'} ne '') { | |
82 | if (($settings{'GUARDIAN_BLOCKTIME'} !~ /^[0-9]+$/) || ($settings{'GUARDIAN_BLOCKTIME'} le '0')) { | |
83 | $errormessage = "$Lang::tr{'guardian invalid blocktime'}"; | |
84 | } | |
85 | } | |
86 | ||
87 | # Check Logfile. | |
88 | if ($settings{'GUARDIAN_LOGFILE'} ne '') { | |
89 | if ($settings{'GUARDIAN_LOGFILE'} !~ /^[a-zA-Z0-9\.\/]+$/) { | |
90 | $errormessage = "$Lang::tr{'guardian invalid logfile'}"; | |
91 | } | |
92 | } | |
93 | ||
94 | # Check input for snort alert file. | |
95 | if ($settings{'GUARDIAN_SNORT_ALERTFILE'} ne '') { | |
96 | if ($settings{'GUARDIAN_SNORT_ALERTFILE'} !~ /^[a-zA-Z0-9\.\/]+$/) { | |
97 | $errormessage = "$Lang::tr{'guardian invalid alertfile'}"; | |
98 | } | |
99 | } | |
100 | ||
101 | # Only continue if no error message has been set. | |
102 | if ($errormessage eq '') { | |
103 | # Write configuration settings to file. | |
104 | &General::writehash("${General::swroot}/guardian/settings", \%settings); | |
105 | ||
106 | # Update configuration files. | |
107 | &BuildConfiguration(); | |
108 | } | |
109 | ||
110 | ## Add a new entry to the ignore file. | |
111 | # | |
112 | } elsif ($settings{'ACTION'} eq $Lang::tr{'add'}) { | |
113 | ||
114 | # Check if any input has been performed. | |
115 | if ($settings{'NEW_IGNORE_ENTRY'} ne '') { | |
116 | ||
117 | # Check if the given input is no valid IP-address or IP-address with subnet, display an error message. | |
118 | if ((!&General::validip($settings{'NEW_IGNORE_ENTRY'})) && (!&General::validipandmask($settings{'NEW_IGNORE_ENTRY'}))) { | |
119 | $errormessage = "$Lang::tr{'guardian invalid address or subnet'}"; | |
120 | } | |
121 | } else { | |
122 | $errormessage = "$Lang::tr{'guardian empty input'}"; | |
123 | } | |
124 | ||
125 | # Go further if there was no error. | |
126 | if ($errormessage eq '') { | |
127 | my $new_entry = $settings{'NEW_IGNORE_ENTRY'}; | |
128 | ||
129 | # Open file for appending the new entry. | |
130 | open (FILE, ">>$ignorefile") or die "Unable to open $ignorefile for writing"; | |
131 | ||
132 | # Write the new entry to the ignore file. | |
133 | print FILE "$new_entry\n"; | |
134 | close(FILE); | |
135 | } | |
136 | ||
137 | ## Remove entry from ignore list. | |
138 | # | |
139 | } elsif ($settings{'ACTION'} eq $Lang::tr{'remove'}) { | |
140 | my $id = 0; | |
141 | ||
142 | # Open ignorefile and read content. | |
143 | open(FILE, "<$ignorefile") or die "Unable to open $ignorefile."; | |
144 | my @current = <FILE>; | |
145 | close(FILE); | |
146 | ||
147 | # Re-open ignorefile for writing. | |
148 | open(FILE, ">$ignorefile") or die "Unable to open $ignorefile for writing"; | |
149 | flock FILE, 2; | |
150 | ||
151 | # Read line by line from ignorefile and write them back except the line with the given ID. | |
152 | # So this line is missing in the new file and the entry has been deleted. | |
153 | foreach my $line (@current) { | |
154 | $id++; | |
155 | unless ($cgiparams{'ID'} eq $id) { | |
156 | print FILE "$line"; | |
157 | } | |
158 | } | |
159 | close(FILE); | |
160 | ||
161 | ## Block a user given address or subnet. | |
162 | # | |
163 | } elsif ($settings{'ACTION'} eq $Lang::tr{'block'}) { | |
164 | ||
165 | # Check if no empty input has been performed. | |
166 | if ($settings{'ADDRESS_BLOCK'} ne '') { | |
167 | ||
168 | # Check if the given input is no valid IP-address or IP-address with subnet, display an error message. | |
169 | if ((!&General::validip($settings{'ADDRESS_BLOCK'})) && (!&General::validipandmask($settings{'ADDRESS_BLOCK'}))) { | |
170 | $errormessage = "$Lang::tr{'guardian invalid address or subnet'}"; | |
171 | } | |
172 | ||
173 | } else { | |
174 | $errormessage = "$Lang::tr{'guardian empty input'}"; | |
175 | } | |
176 | ||
177 | # Go further if there was no error. | |
178 | if ($errormessage eq '') { | |
179 | my $block = $settings{'ADDRESS_BLOCK'}; | |
180 | ||
181 | # Call helper to unblock address. | |
182 | system("/usr/local/bin/guardianctrl block $block &>/dev/null"); | |
183 | } | |
184 | ||
185 | ## Unblock address or subnet. | |
186 | # | |
187 | } elsif ($settings{'ACTION'} eq $Lang::tr{'unblock'}) { | |
188 | ||
189 | # Check if no empty input has been performed. | |
190 | if ($settings{'ADDRESS_UNBLOCK'} ne '') { | |
191 | ||
192 | # Check if the given input is no valid IP-address or IP-address with subnet, display an error message. | |
193 | if ((!&General::validip($settings{'ADDRESS_UNBLOCK'})) && (!&General::validipandmask($settings{'ADDRESS_UNBLOCK'}))) { | |
194 | $errormessage = "$Lang::tr{'guardian invalid address or subnet'}"; | |
195 | } | |
196 | ||
197 | } else { | |
198 | $errormessage = "$Lang::tr{'guardian empty input'}"; | |
199 | } | |
200 | ||
201 | # Go further if there was no error. | |
202 | if ($errormessage eq '') { | |
203 | my $unblock = $settings{'ADDRESS_UNBLOCK'}; | |
204 | ||
205 | # Call helper to unblock address. | |
206 | system("/usr/local/bin/guardianctrl unblock $unblock &>/dev/null"); | |
207 | } | |
208 | ||
209 | ## Unblock all. | |
210 | # | |
211 | } elsif ($settings{'ACTION'} eq $Lang::tr{'unblock all'}) { | |
212 | ||
213 | # Call helper to flush iptables chain from guardian. | |
214 | system("/usr/local/bin/guardianctrl flush-chain &>/dev/null"); | |
215 | ||
216 | } else { | |
217 | # Load settings from file. | |
218 | &General::readhash("${General::swroot}/guardian/settings", \%settings); | |
219 | } | |
220 | ||
221 | ||
222 | # Call functions to generate whole page. | |
223 | &showMainBox(); | |
224 | &showIgnoreBox(); | |
225 | ||
226 | # Display area only if guardian is running. | |
227 | if ( ($memory != 0) && (@pid[0] ne "///") ) { | |
228 | &showBlockedBox(); | |
229 | } | |
230 | ||
231 | # Function to display the status of guardian and allow base configuration. | |
232 | sub showMainBox() { | |
233 | my %checked = (); | |
234 | ||
235 | $checked{'GUARDIAN_ENABLED'}{'on'} = ''; | |
236 | $checked{'GUARDIAN_ENABLED'}{'off'} = ''; | |
237 | $checked{'GUARDIAN_ENABLED'}{$settings{'GUARDIAN_ENABLED'}} = 'checked'; | |
238 | ||
239 | $checked{'GUARDIAN_BLOCKINTERFACES'}{'default'} = ''; | |
240 | $checked{'GUARDIAN_BLOCKINTERFACES'}{'all'} = ''; | |
241 | $checked{'GUARDIAN_BLOCKINTERFACES'}{$settings{'GUARDIAN_BLOCKINTERFACES'}} = "checked='checked'"; | |
242 | ||
243 | ||
244 | &Header::openpage($Lang::tr{'guardian configuration'}, 1, ''); | |
245 | &Header::openbigbox('100%', 'left', '', $errormessage); | |
246 | ||
247 | # Print errormessage if there is one. | |
248 | if ($errormessage) { | |
249 | &Header::openbox('100%', 'left', $Lang::tr{'error messages'}); | |
250 | print "<font class='base'>$errormessage </font>\n"; | |
251 | &Header::closebox(); | |
252 | } | |
253 | ||
254 | ||
255 | # Draw current guardian state. | |
256 | &Header::openbox('100%', 'center', $Lang::tr{'guardian'}); | |
257 | ||
258 | # Check if guardian is running and grab some stats. | |
259 | &daemonstats(); | |
260 | ||
261 | # Display some useful information related to guardian, if daemon is running. | |
262 | if ( ($memory != 0) && (@pid[0] ne "///") ){ | |
263 | print <<END; | |
264 | <table width='95%' cellspacing='0' class='tbl'> | |
265 | <tr> | |
266 | <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'guardian service'}</strong></th> | |
267 | </tr> | |
268 | <tr> | |
269 | <td class='base'>$Lang::tr{'guardian daemon'}</td> | |
270 | <td align='center' colspan='2' width='75%' bgcolor='${Header::colourgreen}'><font color='white'><strong>$Lang::tr{'running'}</strong></font></td> | |
271 | </tr> | |
272 | <tr> | |
273 | <td class='base'></td> | |
274 | <td bgcolor='$color{'color20'}' align='center'><strong>PID</strong></td> | |
275 | <td bgcolor='$color{'color20'}' align='center'><strong>$Lang::tr{'memory'}</strong></td> | |
276 | </tr> | |
277 | <tr> | |
278 | <td class='base'></td> | |
279 | <td bgcolor='$color{'color22'}' align='center'>@pid[0]</td> | |
280 | <td bgcolor='$color{'color22'}' align='center'>$memory KB</td> | |
281 | </tr> | |
282 | </table> | |
283 | END | |
284 | } else { | |
285 | # Otherwise display a hint that the service is not launched. | |
286 | print <<END; | |
287 | <table width='95%' cellspacing='0' class='tbl'> | |
288 | <tr> | |
289 | <th bgcolor='$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' width='75%' bgcolor='${Header::colourred}'><font color='white'><strong>$Lang::tr{'stopped'}</strong></font></td> | |
294 | </tr> | |
295 | </table> | |
296 | END | |
297 | } | |
298 | ||
299 | &Header::closebox(); | |
300 | ||
301 | # Draw elements for guardian configuration. | |
302 | &Header::openbox('100%', 'center', $Lang::tr{'guardian configuration'}); | |
303 | ||
304 | print <<END; | |
305 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> | |
306 | ||
307 | <table width='95%'> | |
308 | <tr> | |
309 | <td colspan='5' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'guardian common settings'}</b></td> | |
310 | </tr> | |
311 | <tr> | |
312 | <td width='20%' class='base'>$Lang::tr{'guardian enabled'}:</td> | |
313 | <td width='30%'><input type='checkbox' name='GUARDIAN_ENABLED' $checked{'GUARDIAN_ENABLED'}{'on'} /></td> | |
314 | <td width='20%' class='base'>$Lang::tr{'guardian blockinterfaces'}:</td> | |
315 | <td width='15%'> $Lang::tr{'guardian blockinterfaces default'} | |
316 | <input type='radio' name='GUARDIAN_BLOCKINTERFACES' value='default' $checked{'GUARDIAN_BLOCKINTERFACES'}{'default'} /></td> | |
317 | <td width='15%'> $Lang::tr{'guardian blockinterfaces all'} | |
318 | <input type='radio' name='GUARDIAN_BLOCKINTERFACES' value='all' $checked{'GUARDIAN_BLOCKINTERFACES'}{'all'} /></td> | |
319 | ||
320 | </tr> | |
321 | <tr> | |
322 | <td width='20%' class='base'>$Lang::tr{'guardian blocktime'}:</td> | |
323 | <td colspan='5'><input type='text' name='GUARDIAN_BLOCKTIME' value='$settings{'GUARDIAN_BLOCKTIME'}' size='10' /></td> | |
324 | </tr> | |
325 | <tr> | |
326 | <td width='20%' class='base'>$Lang::tr{'guardian logfile'}:</td> | |
327 | <td colspan='5'><input type='text' name='GUARDIAN_LOGFILE' value='$settings{'GUARDIAN_LOGFILE'}' size='30' /></td> | |
328 | </tr> | |
329 | <tr> | |
330 | <td width='20%' class='base'>$Lang::tr{'guardian snort alertfile'}:</td> | |
331 | <td colspan='5'><input type='text' name='GUARDIAN_SNORT_ALERTFILE' value='$settings{'GUARDIAN_SNORT_ALERTFILE'}' size='30' /></td> | |
332 | </tr> | |
333 | </table> | |
334 | END | |
335 | ||
336 | print <<END; | |
337 | <hr> | |
338 | ||
339 | <table width='95%'> | |
340 | <tr> | |
341 | <td> </td> | |
342 | <td align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td> | |
343 | <td> </td> | |
344 | </tr> | |
345 | </table> | |
346 | </form> | |
347 | END | |
348 | ||
349 | &Header::closebox(); | |
350 | } | |
351 | ||
352 | # Function to show elements of the guardian ignorefile and allow to add or remove single members of it. | |
353 | sub showIgnoreBox() { | |
354 | &Header::openbox('100%', 'center', $Lang::tr{'guardian ignored hosts'}); | |
355 | ||
356 | print <<END; | |
357 | <table width='60%'> | |
358 | <tr> | |
359 | <td colspan='2' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'guardian ignored hosts'}</b></td> | |
360 | </tr> | |
361 | END | |
362 | # Check if the guardian ignore file contains any content. | |
363 | if (-s $ignorefile) { | |
364 | ||
365 | # Open file and print contents. | |
366 | open FILE, $ignorefile or die "Could not open $ignorefile"; | |
367 | ||
368 | my $id = 0; | |
369 | my $col = ""; | |
370 | ||
371 | # Read file line by line and print out the elements. | |
372 | while( my $ignored_element = <FILE> ) { | |
373 | ||
374 | # Increase id number for each element in the ignore file. | |
375 | $id++; | |
376 | ||
377 | # Check if the id number is even or not. | |
378 | if ($id % 2) { | |
379 | $col="bgcolor='$color{'color22'}'"; | |
380 | } else { | |
381 | $col="bgcolor='$color{'color20'}'"; | |
382 | } | |
383 | ||
384 | print <<END; | |
385 | <tr> | |
386 | <td width='80%' class='base' $col>$ignored_element</td> | |
387 | <td width='20%' align='center' $col> | |
388 | <form method='post' name='frma$id' action='$ENV{'SCRIPT_NAME'}'> | |
389 | <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' title='$Lang::tr{'remove'}' alt='$Lang::tr{'remove'}'> | |
390 | <input type='hidden' name='ID' value='$id'> | |
391 | <input type='hidden' name='ACTION' value='$Lang::tr{'remove'}'> | |
392 | </form> | |
393 | </td> | |
394 | </tr> | |
395 | END | |
396 | } | |
397 | close (FILE); | |
398 | } else { | |
399 | # Print notice that currently no elements are stored in the ignore file. | |
400 | print "<tr>\n"; | |
401 | print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n"; | |
402 | print "</tr>\n"; | |
403 | } | |
404 | ||
405 | print "</table>\n"; | |
406 | ||
407 | &Header::closebox(); | |
408 | ||
409 | # Section to add new elements to the ignore list. | |
410 | print <<END; | |
411 | <div class='post' align='center'> | |
412 | <table width='60%'> | |
413 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> | |
414 | <tr> | |
415 | <td width='30%'>$Lang::tr{'dnsforward add a new entry'}: </td> | |
416 | <td width='50%'><input type='text' name='NEW_IGNORE_ENTRY' value='' size='24' /></td> | |
417 | <td align='center' width='20%'><input type='submit' name='ACTION' value='$Lang::tr{'add'}' /></td> | |
418 | </tr> | |
419 | </form> | |
420 | </table> | |
421 | </div> | |
422 | END | |
423 | } | |
424 | ||
425 | # Function to list currently bocked addresses from guardian and unblock them or add custom entries to block. | |
426 | sub showBlockedBox() { | |
427 | &Header::openbox('100%', 'center', $Lang::tr{'guardian blocked hosts'}); | |
428 | ||
429 | # Lauch helper to get chains from iptables. | |
430 | open(FILE, "/usr/local/bin/guardianctrl get-chain |"); | |
431 | ||
432 | print <<END; | |
433 | <table width='60%'> | |
434 | <tr> | |
435 | <td colspan='2' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'guardian blocked hosts'}</b></td> | |
436 | </tr> | |
437 | END | |
438 | ||
439 | my $id = 0; | |
440 | my $address = ""; | |
441 | my $col = ""; | |
442 | my $interface = ""; | |
443 | ||
444 | # Read file line by line and print out the elements. | |
445 | foreach my $line (<FILE>) { | |
446 | # Skip descriptive lines. | |
447 | next if ($line =~ /^Chain/); | |
448 | next if ($line =~ /^ pkts/); | |
449 | ||
450 | # Generate array based on the line content (seperator is a single or multiple space's) | |
451 | my @comps = split(/\s{1,}/, $line); | |
452 | my ($lead, $pkts, $bytes, $target, $prot, $opt, $in, $out, $source, $destination) = @comps; | |
453 | ||
454 | # Assign different variable names. | |
455 | my $blocked_host = $source; | |
456 | ||
457 | # Increase id number for each element in the ignore file. | |
458 | $id++; | |
459 | ||
460 | # Check if the id number is even or not. | |
461 | if ($id % 2) { | |
462 | $col="bgcolor='$color{'color22'}'"; | |
463 | } else { | |
464 | $col="bgcolor='$color{'color20'}'"; | |
465 | } | |
466 | ||
467 | print <<END; | |
468 | <tr> | |
469 | <td width='80%' class='base' $col>$blocked_host</td> | |
470 | <td width='20%' align='center' $col> | |
471 | <form method='post' name='frmb$id' action='$ENV{'SCRIPT_NAME'}'> | |
472 | <input type='image' name='$Lang::tr{'unblock'}' src='/images/delete.gif' title='$Lang::tr{'unblock'}' alt='$Lang::tr{'unblock'}'> | |
473 | <input type='hidden' name='ADDRESS_UNBLOCK' value='$blocked_host'> | |
474 | <input type='hidden' name='ACTION' value='$Lang::tr{'unblock'}'> | |
475 | </form> | |
476 | </td> | |
477 | </tr> | |
478 | END | |
479 | } | |
480 | ||
481 | close (FILE); | |
482 | ||
483 | # If the loop only has been runs once the id still is "0", which means there are no | |
484 | # additional entries (blocked hosts) in the iptables chain. | |
485 | if ($id == 0) { | |
486 | ||
487 | # Print notice that currently no hosts are blocked. | |
488 | print "<tr>\n"; | |
489 | print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n"; | |
490 | print "</tr>\n"; | |
491 | } | |
492 | ||
493 | print "</table>\n"; | |
494 | ||
495 | &Header::closebox(); | |
496 | ||
497 | # Section for a manual block of an IP-address. | |
498 | print <<END; | |
499 | <div class='post' align='center'> | |
500 | <table width='60%'> | |
501 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> | |
502 | <tr> | |
503 | <td width='30%'>$Lang::tr{'guardian block a host'}: </td> | |
504 | <td width='40%'><input type='text' name='ADDRESS_BLOCK' value='' size='24' /></td> | |
505 | <td align='center' width='15%'><input type='submit' name='ACTION' value='$Lang::tr{'block'}'></td> | |
506 | <td align='center' width='15%'><input type='submit' name='ACTION' value='$Lang::tr{'unblock all'}'></td> | |
507 | </tr> | |
508 | </form> | |
509 | </table> | |
510 | </div> | |
511 | END | |
512 | } | |
513 | ||
514 | &Header::closebigbox(); | |
515 | &Header::closepage(); | |
516 | ||
517 | # Function to check if guardian has been started. | |
518 | # Grab process id and consumed memory if the daemon is running. | |
519 | sub daemonstats() { | |
520 | $memory = 0; | |
521 | # for pid and memory | |
522 | open(FILE, '/usr/local/bin/addonctrl guardian status | '); | |
523 | @guardian = <FILE>; | |
524 | close(FILE); | |
525 | $string = join("", @guardian); | |
526 | $string =~ s/[a-z_]//gi; | |
527 | $string =~ s/\[[0-1]\;[0-9]+//gi; | |
528 | $string =~ s/[\(\)\.]//gi; | |
529 | $string =~ s/ //gi; | |
530 | $string =~ s/\e//gi; | |
531 | @pid = split(/\s/,$string); | |
532 | if (open(FILE, "/proc/$pid[0]/statm")){ | |
533 | my $temp = <FILE>; | |
534 | @memory = split(/ /,$temp); | |
535 | close(FILE); | |
536 | } | |
537 | $memory+=$memory[0]; | |
538 | } | |
539 | ||
540 | sub BuildConfiguration() { | |
541 | my %settings = (); | |
542 | &General::readhash("${General::swroot}/guardian/settings", \%settings); | |
543 | ||
544 | my $configfile = "${General::swroot}/guardian/guardian.conf"; | |
545 | ||
7f728591 SS |
546 | # We set this to 1 (enabled) to prevent guardian from blocking the ISP gateway. |
547 | my $HostGatewayByte = "1"; | |
548 | ||
549 | # Grab interface of red network zone. | |
550 | my $red_interface = &General::get_red_interface(); | |
551 | ||
552 | # Open configfile for writing. | |
01dbccb1 SS |
553 | open(FILE, ">$configfile"); |
554 | ||
7f728591 | 555 | print FILE "Interface $red_interface\n"; |
01dbccb1 | 556 | print FILE "BlockOption $settings{'GUARDIAN_BLOCKINTERFACES'}\n"; |
7f728591 | 557 | print FILE "HostGatewayByte $HostGatewayByte\n"; |
01dbccb1 SS |
558 | print FILE "LogFile $settings{'GUARDIAN_LOGFILE'}\n"; |
559 | print FILE "AlertFile $settings{'GUARDIAN_SNORT_ALERTFILE'}\n"; | |
560 | print FILE "IgnoreFile $ignorefile\n"; | |
561 | print FILE "TargetFile $targetfile\n"; | |
562 | print FILE "TimeLimit $settings{'GUARDIAN_BLOCKTIME'}\n"; | |
563 | ||
564 | close(FILE); | |
565 | ||
566 | # Restart the service. | |
567 | if ($settings{'GUARDIAN_ENABLED'} eq 'on') { | |
568 | system("/usr/local/bin/guardianctrl restart &>/dev/null"); | |
569 | } else { | |
570 | system("/usr/local/bin/guardianctrl stop &>/dev/null"); | |
571 | } | |
572 | } |