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ac1cfefa | 1 | #!/usr/bin/perl |
70df8302 MT |
2 | ############################################################################### |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
b6f571fa | 5 | # Copyright (C) 2007-2015 IPFire Team <info@ipfire.org> # |
70df8302 MT |
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 | ||
ac1cfefa MT |
22 | use strict; |
23 | ||
24 | # enable only the following on debugging purpose | |
90c2e164 CS |
25 | #use warnings; |
26 | #use CGI::Carp 'fatalsToBrowser'; | |
73231650 | 27 | use File::Copy; |
ac1cfefa | 28 | |
986e08d9 | 29 | require '/var/ipfire/general-functions.pl'; |
ac1cfefa MT |
30 | require "${General::swroot}/lang.pl"; |
31 | require "${General::swroot}/header.pl"; | |
32 | ||
f2fdd0c1 CS |
33 | my %color = (); |
34 | my %mainsettings = (); | |
0b89daee | 35 | my %netsettings = (); |
a232b58c | 36 | my %snortrules = (); |
ac1cfefa | 37 | my %snortsettings=(); |
298723b9 | 38 | my %cgiparams=(); |
ac1cfefa | 39 | my %checked=(); |
5a3e0dca | 40 | my %selected=(); |
0b89daee SS |
41 | |
42 | # Read-in main settings, for language, theme and colors. | |
43 | &General::readhash("${General::swroot}/main/settings", \%mainsettings); | |
44 | &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color); | |
45 | ||
46 | # Get netsettings. | |
ac1cfefa MT |
47 | &General::readhash("${General::swroot}/ethernet/settings", \%netsettings); |
48 | ||
49 | &Header::showhttpheaders(); | |
50 | ||
0b89daee | 51 | # Default settings for snort. |
ac1cfefa MT |
52 | $snortsettings{'ENABLE_SNORT'} = 'off'; |
53 | $snortsettings{'ENABLE_SNORT_GREEN'} = 'off'; | |
54 | $snortsettings{'ENABLE_SNORT_BLUE'} = 'off'; | |
55 | $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off'; | |
5a3e0dca | 56 | $snortsettings{'RULES'} = ''; |
ac1cfefa MT |
57 | $snortsettings{'OINKCODE'} = ''; |
58 | $snortsettings{'INSTALLDATE'} = ''; | |
ac1cfefa | 59 | |
298723b9 SS |
60 | #Get GUI values |
61 | &Header::getcgihash(\%cgiparams); | |
ac1cfefa | 62 | |
422204ff | 63 | my $snortrulepath = "/etc/snort/rules"; |
e5738079 | 64 | my $snortusedrulefilesfile = "${General::swroot}/snort/snort-used-rulefiles.conf"; |
0b89daee | 65 | my $errormessage; |
395e3b90 | 66 | |
500c5c55 SS |
67 | # Try to determine if oinkmaster is running. |
68 | my $oinkmaster_pid = `pidof oinkmaster.pl -x`; | |
69 | ||
70 | # If oinkmaster is running display output. | |
71 | if ($oinkmaster_pid) { | |
72 | &working("$Lang::tr{'snort working'}"); | |
73 | } | |
74 | ||
3da6e01b SS |
75 | ## Grab all available snort rules and store them in the snortrules hash. |
76 | # | |
422204ff SS |
77 | # Open snort rules directory and do a directory listing. |
78 | opendir(DIR, $snortrulepath) or die $!; | |
79 | # Loop through the direcory. | |
80 | while (my $file = readdir(DIR)) { | |
81 | ||
82 | # We only want files. | |
83 | next unless (-f "$snortrulepath/$file"); | |
84 | ||
85 | # Ignore empty files. | |
86 | next if (-z "$snortrulepath/$file"); | |
87 | ||
3da6e01b | 88 | # Use a regular expression to find files ending in .rules |
422204ff SS |
89 | next unless ($file =~ m/\.rules$/); |
90 | ||
3da6e01b SS |
91 | # Ignore files which are not read-able. |
92 | next unless (-R "$snortrulepath/$file"); | |
395e3b90 | 93 | |
3da6e01b SS |
94 | # Call subfunction to read-in rulefile and add rules to |
95 | # the snortrules hash. | |
96 | &readrulesfile("$file"); | |
395e3b90 | 97 | } |
395e3b90 | 98 | |
3da6e01b | 99 | closedir(DIR); |
395e3b90 | 100 | |
e5738079 SS |
101 | # Gather used rulefiles. |
102 | # | |
103 | # Check if the file for activated rulefiles is not empty. | |
104 | if(-f $snortusedrulefilesfile) { | |
105 | # Open the file for used rulefile and read-in content. | |
106 | open(FILE, $snortusedrulefilesfile) or die "Could not open $snortusedrulefilesfile. $!\n"; | |
107 | ||
108 | # Read-in content. | |
109 | my @lines = <FILE>; | |
110 | ||
111 | # Close file. | |
112 | close(FILE); | |
113 | ||
114 | # Loop through the array. | |
115 | foreach my $line (@lines) { | |
116 | # Remove newlines. | |
117 | chomp($line); | |
118 | ||
119 | # Skip comments. | |
120 | next if ($line =~ /\#/); | |
121 | ||
122 | # Skip blank lines. | |
123 | next if ($line =~ /^\s*$/); | |
124 | ||
125 | # Gather rule sid and message from the ruleline. | |
126 | if ($line =~ /.*include \$RULE_PATH\/(.*)/) { | |
127 | my $rulefile = $1; | |
128 | ||
129 | # Add the rulefile to the %snortrules hash. | |
130 | $snortrules{$rulefile}{'Rulefile'}{'State'} = "on"; | |
131 | } | |
132 | } | |
133 | } | |
134 | ||
298723b9 SS |
135 | # Save ruleset. |
136 | if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) { | |
137 | my $enabled_sids_file = "${General::swroot}/snort/oinkmaster-enabled-sids.conf"; | |
138 | my $disabled_sids_file = "${General::swroot}/snort/oinkmaster-disabled-sids.conf"; | |
139 | ||
140 | # Arrays to store sid which should be added to the corresponding files. | |
141 | my @enabled_sids; | |
142 | my @disabled_sids; | |
e5738079 | 143 | my @enabled_rulefiles; |
298723b9 SS |
144 | |
145 | # Loop through the hash of snortrules. | |
146 | foreach my $rulefile(keys %snortrules) { | |
e5738079 SS |
147 | # Check if the rulefile is enabled. |
148 | if ($cgiparams{$rulefile} eq "on") { | |
149 | # Add rulefile to the array of enabled rulefiles. | |
150 | push(@enabled_rulefiles, $rulefile); | |
b65b5ef3 SS |
151 | |
152 | # Drop item from cgiparams hash. | |
153 | delete $cgiparams{$rulefile}; | |
e5738079 | 154 | } |
466c6779 | 155 | } |
e5738079 | 156 | |
466c6779 SS |
157 | # Loop through the hash of snortrules. |
158 | foreach my $rulefile (keys %snortrules) { | |
298723b9 SS |
159 | # Loop through the single rules of the rulefile. |
160 | foreach my $sid (keys %{$snortrules{$rulefile}}) { | |
c51a044a SS |
161 | # Skip the current sid if it is not numeric. |
162 | next unless ($sid =~ /\d+/ ); | |
163 | ||
298723b9 SS |
164 | # Check if there exists a key in the cgiparams hash for this sid. |
165 | if (exists($cgiparams{$sid})) { | |
166 | # Look if the rule is disabled. | |
167 | if ($snortrules{$rulefile}{$sid}{'State'} eq "off") { | |
168 | # Check if the state has been set to 'on'. | |
169 | if ($cgiparams{$sid} eq "on") { | |
170 | # Add the sid to the enabled_sids array. | |
171 | push(@enabled_sids, $sid); | |
172 | ||
173 | # Drop item from cgiparams hash. | |
60333473 | 174 | delete $cgiparams{$rulefile}{$sid}; |
298723b9 SS |
175 | } |
176 | } | |
177 | } else { | |
178 | # Look if the rule is enabled. | |
179 | if ($snortrules{$rulefile}{$sid}{'State'} eq "on") { | |
180 | # Check if the state is 'on' and should be disabled. | |
181 | # In this case there is no entry | |
182 | # for the sid in the cgiparams hash. | |
183 | # Add it to the disabled_sids array. | |
184 | push(@disabled_sids, $sid); | |
185 | ||
186 | # Drop item from cgiparams hash. | |
60333473 | 187 | delete $cgiparams{$rulefile}{$sid}; |
298723b9 SS |
188 | } |
189 | } | |
190 | } | |
191 | } | |
192 | ||
37659505 SS |
193 | # Open enabled sid's file for writing. |
194 | open(FILE, ">$enabled_sids_file") or die "Could not write to $enabled_sids_file. $!\n"; | |
298723b9 | 195 | |
37659505 SS |
196 | # Write header to file. |
197 | print FILE "#Autogenerated file. Any custom changes will be overwritten!\n"; | |
298723b9 | 198 | |
37659505 SS |
199 | # Check if the enabled_sids array contains any sid's. |
200 | if (@enabled_sids) { | |
298723b9 SS |
201 | # Loop through the array of enabled sids and write them to the file. |
202 | foreach my $sid (@enabled_sids) { | |
37659505 | 203 | print FILE "enablesid $sid\n"; |
298723b9 | 204 | } |
298723b9 SS |
205 | } |
206 | ||
37659505 SS |
207 | # Close file after writing. |
208 | close(FILE); | |
209 | ||
210 | # Open disabled sid's file for writing. | |
211 | open(FILE, ">$disabled_sids_file") or die "Could not write to $disabled_sids_file. $!\n"; | |
298723b9 | 212 | |
37659505 SS |
213 | # Write header to file. |
214 | print FILE "#Autogenerated file. Any custom changes will be overwritten!\n"; | |
298723b9 | 215 | |
37659505 SS |
216 | # Check if the enabled_sids array contains any sid's. |
217 | if (@disabled_sids) { | |
218 | # Loop through the array of disabled sids and write them to the file. | |
219 | foreach my $sid (@disabled_sids) { | |
220 | print FILE "disablesid $sid\n"; | |
221 | } | |
222 | } | |
298723b9 | 223 | |
37659505 SS |
224 | # Close file after writing. |
225 | close(FILE); | |
e5738079 SS |
226 | |
227 | # Open file for used rulefiles. | |
37659505 | 228 | open (FILE, ">$snortusedrulefilesfile") or die "Could not write to $snortusedrulefilesfile. $!\n"; |
e5738079 SS |
229 | |
230 | # Write header to file. | |
231 | print FILE "#Autogenerated file. Any custom changes will be overwritten!\n"; | |
232 | ||
233 | # Check if the enabled_rulefiles array contains any entries. | |
234 | if (@enabled_rulefiles) { | |
235 | # Loop through the array of rulefiles which should be loaded and write the to the file. | |
236 | foreach my $file (@enabled_rulefiles) { | |
237 | print FILE "include \$RULE_PATH/$file\n"; | |
238 | } | |
239 | } | |
240 | ||
241 | # Close file after writing. | |
242 | close(FILE); | |
52599865 SS |
243 | |
244 | # Call oinkmaster to alter the ruleset. | |
245 | &oinkmaster(); | |
246 | ||
247 | # Download new ruleset. | |
248 | } elsif ($cgiparams{'RULESET'} eq $Lang::tr{'download new ruleset'}) { | |
249 | # Local var. | |
250 | my $return; | |
251 | ||
252 | # Call diskfree to gather the free disk space of /var. | |
253 | my @df = `/bin/df -B M /var`; | |
254 | ||
255 | # Loop through the output. | |
256 | foreach my $line (@df) { | |
257 | # Ignore header line. | |
258 | next if $line =~ m/^Filesystem/; | |
259 | ||
260 | # Search for a line with the device information. | |
261 | if ($line =~ m/dev/ ) { | |
262 | # Split the line into single pieces. | |
263 | my @values = split(' ', $line); | |
264 | my ($filesystem, $blocks, $used, $available, $used_perenctage, $mounted_on) = @values; | |
265 | ||
266 | # Check if the available disk space is more than 300MB. | |
267 | if ($available < 300) { | |
268 | # If there is not enough space, print out an error message. | |
269 | $errormessage = "$Lang::tr{'not enough disk space'} < 300MB, /var $1MB"; | |
270 | } else { | |
271 | # Call subfunction to download the ruleset. | |
272 | &downloadrulesfile(); | |
273 | ||
274 | # Sleep for 3 seconds. | |
275 | sleep(3); | |
276 | ||
277 | # Gather return of the external wget. | |
278 | $return = `cat /var/tmp/log 2>/dev/null`; | |
279 | } | |
280 | ||
281 | # Check if there was an error. | |
282 | if ($return =~ "ERROR") { | |
283 | # Store error message for display. | |
284 | $errormessage = "<br /><pre>".$return."</pre>"; | |
285 | } else { | |
8f22237b SS |
286 | # Remove logfile. |
287 | unlink("/var/tmp/log"); | |
288 | ||
52599865 SS |
289 | # Call subfunction to launch oinkmaster. |
290 | &oinkmaster(); | |
291 | ||
292 | # Sleep for 2 seconds. | |
293 | sleep(2); | |
294 | } | |
295 | } | |
296 | } | |
a232b58c SS |
297 | # Save snort settings. |
298 | } elsif ($cgiparams{'SNORT'} eq $Lang::tr{'save'}) { | |
299 | # Prevent form name from been stored in conf file. | |
300 | delete $cgiparams{'SNORT'}; | |
301 | ||
302 | # Check if an oinkcode has been provided. | |
303 | if ($cgiparams{'OINKCODE'}) { | |
304 | # Check if the oinkcode contains unallowed chars. | |
305 | unless ($cgiparams{'OINKCODE'} =~ /^[a-z0-9]+$/) { | |
306 | $errormessage = $Lang::tr{'invalid input for oink code'}; | |
307 | } | |
f9c2147d | 308 | } |
ac1cfefa | 309 | |
a232b58c SS |
310 | # Go on if there are no error messages. |
311 | if (!$errormessage) { | |
312 | # Store settings into settings file. | |
313 | &General::writehash("${General::swroot}/snort/settings", \%cgiparams); | |
314 | ||
315 | # Create/Remove control files for snort. | |
316 | if ($snortsettings{'ENABLE_SNORT'} eq 'on') { | |
a9a91e5f MT |
317 | system ('/usr/bin/touch', "${General::swroot}/snort/enable"); |
318 | } else { | |
319 | unlink "${General::swroot}/snort/enable"; | |
320 | } | |
a232b58c SS |
321 | |
322 | if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on') { | |
a9a91e5f MT |
323 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_green"); |
324 | } else { | |
325 | unlink "${General::swroot}/snort/enable_green"; | |
326 | } | |
a232b58c SS |
327 | |
328 | if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on') { | |
a9a91e5f MT |
329 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue"); |
330 | } else { | |
331 | unlink "${General::swroot}/snort/enable_blue"; | |
332 | } | |
a232b58c SS |
333 | |
334 | if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on') { | |
a9a91e5f MT |
335 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange"); |
336 | } else { | |
337 | unlink "${General::swroot}/snort/enable_orange"; | |
338 | } | |
a232b58c SS |
339 | |
340 | if ($snortsettings{'ENABLE_PREPROCESSOR_HTTP_INSPECT'} eq 'on') { | |
a9a91e5f MT |
341 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_preprocessor_http_inspect"); |
342 | } else { | |
343 | unlink "${General::swroot}/snort/enable_preprocessor_http_inspect"; | |
344 | } | |
395e3b90 | 345 | |
a232b58c | 346 | # Call snortctrl to restart snort |
a9a91e5f MT |
347 | system('/usr/local/bin/snortctrl restart >/dev/null'); |
348 | } | |
ac1cfefa MT |
349 | } |
350 | ||
52599865 SS |
351 | # Read-in snortsettings |
352 | &General::readhash("${General::swroot}/snort/settings", \%snortsettings); | |
353 | ||
ac1cfefa MT |
354 | $checked{'ENABLE_SNORT'}{'off'} = ''; |
355 | $checked{'ENABLE_SNORT'}{'on'} = ''; | |
356 | $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'"; | |
357 | $checked{'ENABLE_SNORT_GREEN'}{'off'} = ''; | |
358 | $checked{'ENABLE_SNORT_GREEN'}{'on'} = ''; | |
359 | $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'"; | |
360 | $checked{'ENABLE_SNORT_BLUE'}{'off'} = ''; | |
361 | $checked{'ENABLE_SNORT_BLUE'}{'on'} = ''; | |
362 | $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'"; | |
363 | $checked{'ENABLE_SNORT_ORANGE'}{'off'} = ''; | |
364 | $checked{'ENABLE_SNORT_ORANGE'}{'on'} = ''; | |
365 | $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'"; | |
5a3e0dca | 366 | $selected{'RULES'}{'nothing'} = ''; |
5a3e0dca | 367 | $selected{'RULES'}{'community'} = ''; |
a0fa489f | 368 | $selected{'RULES'}{'emerging'} = ''; |
5a3e0dca MT |
369 | $selected{'RULES'}{'registered'} = ''; |
370 | $selected{'RULES'}{'subscripted'} = ''; | |
371 | $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'"; | |
ac1cfefa MT |
372 | |
373 | &Header::openpage($Lang::tr{'intrusion detection system'}, 1, ''); | |
374 | ||
17726644 SS |
375 | ### Java Script ### |
376 | print <<END | |
377 | <script> | |
378 | // Tiny java script function to show/hide the rules | |
379 | // of a given category. | |
380 | function showhide(tblname) { | |
381 | \$("#" + tblname).toggle(); | |
382 | } | |
383 | </script> | |
384 | END | |
385 | ; | |
386 | ||
ac1cfefa MT |
387 | &Header::openbigbox('100%', 'left', '', $errormessage); |
388 | ||
389 | if ($errormessage) { | |
390 | &Header::openbox('100%', 'left', $Lang::tr{'error messages'}); | |
391 | print "<class name='base'>$errormessage\n"; | |
392 | print " </class>\n"; | |
393 | &Header::closebox(); | |
394 | } | |
395 | ||
7cc8a0e5 | 396 | &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system'}); |
ac1cfefa MT |
397 | print <<END |
398 | <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'> | |
1b73b07e | 399 | <tr><td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />GREEN Snort |
ac1cfefa MT |
400 | END |
401 | ; | |
402 | if ($netsettings{'BLUE_DEV'} ne '') { | |
1b73b07e | 403 | print " <input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} /> BLUE Snort"; |
ac1cfefa MT |
404 | } |
405 | if ($netsettings{'ORANGE_DEV'} ne '') { | |
1b73b07e | 406 | print " <input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} /> ORANGE Snort"; |
ac1cfefa | 407 | } |
1b73b07e | 408 | print " <input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} /> RED Snort"; |
1b73b07e | 409 | |
ac1cfefa | 410 | print <<END |
1b73b07e | 411 | </td></tr> |
ac1cfefa | 412 | <tr> |
7cc8a0e5 | 413 | <td><br><br></td> |
ac1cfefa MT |
414 | </tr> |
415 | <tr> | |
416 | <td><b>$Lang::tr{'ids rules update'}</b></td> | |
417 | </tr> | |
418 | <tr> | |
5a3e0dca MT |
419 | <td><select name='RULES'> |
420 | <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option> | |
a0fa489f | 421 | <option value='emerging' $selected{'RULES'}{'emerging'} >$Lang::tr{'emerging rules'}</option> |
5a3e0dca MT |
422 | <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option> |
423 | <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option> | |
424 | <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option> | |
425 | </select> | |
426 | </td> | |
ac1cfefa MT |
427 | </tr> |
428 | <tr> | |
429 | <td><br /> | |
8d29504c | 430 | $Lang::tr{'ids rules license'} <a href='https://www.snort.org/subscribe' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}<br /><br /> |
4935eb8b | 431 | $Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'} |
ac1cfefa MT |
432 | </td> |
433 | </tr> | |
434 | <tr> | |
5a3e0dca | 435 | <td nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td> |
ac1cfefa MT |
436 | </tr> |
437 | <tr> | |
a232b58c | 438 | <td width='30%' align='left'><br><input type='submit' name='RULESET' value='$Lang::tr{'download new ruleset'}' /> |
ac1cfefa MT |
439 | END |
440 | ; | |
42d9192e | 441 | if ( -e "/var/tmp/snortrules.tar.gz"){ |
0972c650 CS |
442 | my @Info = stat("/var/tmp/snortrules.tar.gz"); |
443 | $snortsettings{'INSTALLDATE'} = localtime($Info[9]); | |
ac1cfefa | 444 | } |
32810952 CS |
445 | print " $Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>"; |
446 | ||
ac1cfefa MT |
447 | print <<END |
448 | </tr> | |
449 | </table> | |
7cc8a0e5 | 450 | <br><br> |
ac1cfefa MT |
451 | <table width='100%'> |
452 | <tr> | |
a232b58c | 453 | <td align='right'><input type='submit' name='SNORT' value='$Lang::tr{'save'}' /></td> |
ac1cfefa MT |
454 | </tr> |
455 | </table> | |
456 | </form> | |
457 | END | |
458 | ; | |
459 | ||
ac1cfefa | 460 | &Header::closebox(); |
fbfdb241 | 461 | |
f7fcd1c0 | 462 | &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'}); |
298723b9 SS |
463 | print"<form method='POST' action='$ENV{'SCRIPT_NAME'}'>\n"; |
464 | ||
f7fcd1c0 | 465 | # Output display table for rule files |
17726644 | 466 | print "<table width='100%'>\n"; |
ce0e83b3 | 467 | |
17726644 SS |
468 | # Local variable required for java script to show/hide |
469 | # rules of a rulefile. | |
470 | my $rulesetcount = 1; | |
f7fcd1c0 SS |
471 | |
472 | # Loop over each rule file | |
473 | foreach my $rulefile (sort keys(%snortrules)) { | |
474 | my $rulechecked = ''; | |
475 | ||
f7fcd1c0 | 476 | # Check if rule file is enabled |
e5738079 | 477 | if ($snortrules{$rulefile}{'Rulefile'}{'State'} eq 'on') { |
f7fcd1c0 SS |
478 | $rulechecked = 'CHECKED'; |
479 | } | |
3ffee04b | 480 | |
17726644 SS |
481 | # Table and rows for the rule files. |
482 | print"<tr>\n"; | |
483 | print"<td class='base' width='5%'>\n"; | |
e5738079 | 484 | print"<input type='checkbox' name='$rulefile' $rulechecked>\n"; |
17726644 SS |
485 | print"</td>\n"; |
486 | print"<td class='base' width='90%'><b>$rulefile</b></td>\n"; | |
487 | print"<td class='base' width='5%' align='right'>\n"; | |
488 | print"<a href=\"javascript:showhide('ruleset$rulesetcount')\">SHOW</a>\n"; | |
489 | print"</td>\n"; | |
490 | print"</tr>\n"; | |
491 | ||
492 | # Rows which will be hidden per default and will contain the single rules. | |
493 | print"<tr style='display:none' id='ruleset$rulesetcount'>\n"; | |
494 | print"<td colspan='3'>\n"; | |
495 | ||
496 | # Local vars | |
497 | my $lines; | |
498 | my $rows; | |
499 | my $col; | |
500 | ||
501 | # New table for the single rules. | |
502 | print "<table width='100%'>\n"; | |
503 | ||
504 | # Loop over rule file rules | |
505 | foreach my $sid (sort {$a <=> $b} keys(%{$snortrules{$rulefile}})) { | |
f7fcd1c0 | 506 | # Local vars |
17726644 | 507 | my $ruledefchecked = ''; |
f9c2147d | 508 | |
e5738079 SS |
509 | # Skip rulefile itself. |
510 | next if ($sid eq "Rulefile"); | |
511 | ||
17726644 SS |
512 | # If 2 rules have been displayed, start a new row |
513 | if (($lines % 2) == 0) { | |
514 | print "</tr><tr>\n"; | |
3ffee04b | 515 | |
17726644 SS |
516 | # Increase rows by once. |
517 | $rows++; | |
518 | } | |
f7fcd1c0 | 519 | |
17726644 SS |
520 | # Colour lines. |
521 | if ($rows % 2) { | |
522 | $col="bgcolor='$color{'color20'}'"; | |
523 | } else { | |
524 | $col="bgcolor='$color{'color22'}'"; | |
f7fcd1c0 SS |
525 | } |
526 | ||
17726644 | 527 | # Set rule state |
298723b9 | 528 | if ($snortrules{$rulefile}{$sid}{'State'} eq 'on') { |
17726644 | 529 | $ruledefchecked = 'CHECKED'; |
f7fcd1c0 | 530 | } |
3ffee04b | 531 | |
17726644 SS |
532 | # Create rule checkbox and display rule description |
533 | print "<td class='base' width='5%' align='right' $col>\n"; | |
534 | print "<input type='checkbox' NAME='$sid' $ruledefchecked>\n"; | |
535 | print "</td>\n"; | |
536 | print "<td class='base' width='45%' $col>$snortrules{$rulefile}{$sid}{'Description'}</td>"; | |
537 | ||
538 | # Increment rule count | |
539 | $lines++; | |
540 | } | |
541 | ||
542 | # If do not have a second rule for row, create empty cell | |
543 | if (($lines % 2) != 0) { | |
544 | print "<td class='base'></td>"; | |
f7fcd1c0 SS |
545 | } |
546 | ||
547 | # Close display table | |
17726644 | 548 | print "</tr></table></td></tr>"; |
3ffee04b | 549 | |
17726644 SS |
550 | # Finished whith the rule file, increase count. |
551 | $rulesetcount++; | |
f7fcd1c0 | 552 | } |
17726644 SS |
553 | |
554 | # Close display table | |
555 | print "</table>"; | |
556 | ||
f7fcd1c0 | 557 | print <<END |
2999f1d2 CS |
558 | <table width='100%'> |
559 | <tr> | |
298723b9 | 560 | <td width='100%' align='right'><input type='submit' name='RULESET' value='$Lang::tr{'update'}'> |
3ffee04b CS |
561 | <!-- space for future online help link --> |
562 | </td> | |
2999f1d2 CS |
563 | </tr> |
564 | </table> | |
298723b9 | 565 | </form> |
3ffee04b CS |
566 | END |
567 | ; | |
f7fcd1c0 | 568 | &Header::closebox(); |
ac1cfefa MT |
569 | &Header::closebigbox(); |
570 | &Header::closepage(); | |
571 | ||
500c5c55 SS |
572 | sub working ($) { |
573 | my $message = $_[0]; | |
574 | ||
575 | &Header::openpage($Lang::tr{'intrusion detection system'}, 1, ''); | |
576 | &Header::openbigbox('100%', 'left', '', $errormessage); | |
577 | &Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='1'>" ); | |
578 | print <<END; | |
579 | <table> | |
580 | <tr> | |
581 | <td><img src='/images/indicator.gif' alt='$Lang::tr{'aktiv'}' /></td> | |
582 | <td>$message</td> | |
583 | </tr> | |
584 | <tr> | |
585 | <td colspan='2' align='center'> | |
586 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> | |
587 | <input type='image' alt='$Lang::tr{'reload'}' title='$Lang::tr{'reload'}' src='/images/view-refresh.png' /> | |
588 | </form> | |
589 | </tr> | |
590 | </table> | |
591 | END | |
592 | &Header::closebox(); | |
593 | &Header::closebigbox(); | |
594 | &Header::closepage(); | |
595 | exit; | |
a70d269a SS |
596 | } |
597 | ||
ac1cfefa | 598 | sub downloadrulesfile { |
73231650 CS |
599 | my $peer; |
600 | my $peerport; | |
ac1cfefa | 601 | |
73231650 | 602 | unlink("/var/tmp/log"); |
ac1cfefa MT |
603 | |
604 | unless (-e "${General::swroot}/red/active") { | |
605 | $errormessage = $Lang::tr{'could not download latest updates'}; | |
606 | return undef; | |
607 | } | |
608 | ||
ac1cfefa MT |
609 | my %proxysettings=(); |
610 | &General::readhash("${General::swroot}/proxy/settings", \%proxysettings); | |
611 | ||
612 | if ($_=$proxysettings{'UPSTREAM_PROXY'}) { | |
73231650 | 613 | ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/); |
ac1cfefa MT |
614 | } |
615 | ||
73231650 | 616 | if ($peer) { |
1f606aef | 617 | system("wget -r --proxy=on --proxy-user=$proxysettings{'UPSTREAM_USER'} --proxy-passwd=$proxysettings{'UPSTREAM_PASSWORD'} -e http_proxy=http://$peer:$peerport/ -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url"); |
73231650 | 618 | } else { |
1f606aef | 619 | system("wget -r -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url"); |
ac1cfefa | 620 | } |
ac1cfefa | 621 | } |
3da6e01b | 622 | |
56dacb58 SS |
623 | sub oinkmaster () { |
624 | # Call oinkmaster to generate ruleset. | |
625 | system("/usr/local/bin/oinkmaster.pl -v -s -u file:///var/tmp/snortrules.tar.gz -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules >>/var/tmp/log 2>&1 &"); | |
626 | } | |
627 | ||
3da6e01b SS |
628 | sub readrulesfile ($) { |
629 | my $rulefile = shift; | |
630 | ||
631 | # Open rule file and read in contents | |
632 | open(RULEFILE, "$snortrulepath/$rulefile") or die "Unable to read $rulefile!"; | |
633 | ||
634 | # Store file content in an array. | |
635 | my @lines = <RULEFILE>; | |
636 | ||
637 | # Close file. | |
638 | close(RULEFILE); | |
639 | ||
640 | # Loop over rule file contents | |
641 | foreach my $line (@lines) { | |
642 | # Remove whitespaces. | |
643 | chomp $line; | |
644 | ||
645 | # Skip blank lines. | |
646 | next if ($line =~ /^\s*$/); | |
647 | ||
648 | # Local vars. | |
649 | my $sid; | |
650 | my $msg; | |
651 | ||
652 | # Gather rule sid and message from the ruleline. | |
653 | if ($line =~ m/.*msg:\"(.*?)\"\; .* sid:(.*?); /) { | |
654 | $msg = $1; | |
655 | $sid = $2; | |
656 | ||
657 | # Check if a rule has been found. | |
658 | if ($sid && $msg) { | |
659 | # Add rule to the snortrules hash. | |
660 | $snortrules{$rulefile}{$sid}{'Description'} = $msg; | |
661 | ||
662 | # Grab status of the rule. Check if ruleline starts with a "dash". | |
663 | if ($line =~ /^\#/) { | |
664 | # If yes, the rule is disabled. | |
298723b9 | 665 | $snortrules{$rulefile}{$sid}{'State'} = "off"; |
3da6e01b SS |
666 | } else { |
667 | # Otherwise the rule is enabled. | |
298723b9 | 668 | $snortrules{$rulefile}{$sid}{'State'} = "on"; |
3da6e01b SS |
669 | } |
670 | } | |
671 | } | |
672 | } | |
673 | } |