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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("${General::swroot}/snort/settings", \%cgiparams); | |
314 | ||
a232b58c | 315 | # Call snortctrl to restart snort |
a9a91e5f MT |
316 | system('/usr/local/bin/snortctrl restart >/dev/null'); |
317 | } | |
ac1cfefa MT |
318 | } |
319 | ||
52599865 SS |
320 | # Read-in snortsettings |
321 | &General::readhash("${General::swroot}/snort/settings", \%snortsettings); | |
322 | ||
ac1cfefa MT |
323 | $checked{'ENABLE_SNORT'}{'off'} = ''; |
324 | $checked{'ENABLE_SNORT'}{'on'} = ''; | |
325 | $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'"; | |
326 | $checked{'ENABLE_SNORT_GREEN'}{'off'} = ''; | |
327 | $checked{'ENABLE_SNORT_GREEN'}{'on'} = ''; | |
328 | $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'"; | |
329 | $checked{'ENABLE_SNORT_BLUE'}{'off'} = ''; | |
330 | $checked{'ENABLE_SNORT_BLUE'}{'on'} = ''; | |
331 | $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'"; | |
332 | $checked{'ENABLE_SNORT_ORANGE'}{'off'} = ''; | |
333 | $checked{'ENABLE_SNORT_ORANGE'}{'on'} = ''; | |
334 | $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'"; | |
5a3e0dca | 335 | $selected{'RULES'}{'nothing'} = ''; |
5a3e0dca | 336 | $selected{'RULES'}{'community'} = ''; |
a0fa489f | 337 | $selected{'RULES'}{'emerging'} = ''; |
5a3e0dca MT |
338 | $selected{'RULES'}{'registered'} = ''; |
339 | $selected{'RULES'}{'subscripted'} = ''; | |
340 | $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'"; | |
ac1cfefa MT |
341 | |
342 | &Header::openpage($Lang::tr{'intrusion detection system'}, 1, ''); | |
343 | ||
17726644 SS |
344 | ### Java Script ### |
345 | print <<END | |
346 | <script> | |
347 | // Tiny java script function to show/hide the rules | |
348 | // of a given category. | |
349 | function showhide(tblname) { | |
350 | \$("#" + tblname).toggle(); | |
351 | } | |
352 | </script> | |
353 | END | |
354 | ; | |
355 | ||
ac1cfefa MT |
356 | &Header::openbigbox('100%', 'left', '', $errormessage); |
357 | ||
358 | if ($errormessage) { | |
359 | &Header::openbox('100%', 'left', $Lang::tr{'error messages'}); | |
360 | print "<class name='base'>$errormessage\n"; | |
361 | print " </class>\n"; | |
362 | &Header::closebox(); | |
363 | } | |
364 | ||
7cc8a0e5 | 365 | &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system'}); |
ac1cfefa MT |
366 | print <<END |
367 | <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'> | |
1b73b07e | 368 | <tr><td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />GREEN Snort |
ac1cfefa MT |
369 | END |
370 | ; | |
371 | if ($netsettings{'BLUE_DEV'} ne '') { | |
1b73b07e | 372 | print " <input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} /> BLUE Snort"; |
ac1cfefa MT |
373 | } |
374 | if ($netsettings{'ORANGE_DEV'} ne '') { | |
1b73b07e | 375 | print " <input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} /> ORANGE Snort"; |
ac1cfefa | 376 | } |
1b73b07e | 377 | print " <input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} /> RED Snort"; |
1b73b07e | 378 | |
ac1cfefa | 379 | print <<END |
1b73b07e | 380 | </td></tr> |
ac1cfefa | 381 | <tr> |
7cc8a0e5 | 382 | <td><br><br></td> |
ac1cfefa MT |
383 | </tr> |
384 | <tr> | |
385 | <td><b>$Lang::tr{'ids rules update'}</b></td> | |
386 | </tr> | |
387 | <tr> | |
5a3e0dca MT |
388 | <td><select name='RULES'> |
389 | <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option> | |
a0fa489f | 390 | <option value='emerging' $selected{'RULES'}{'emerging'} >$Lang::tr{'emerging rules'}</option> |
5a3e0dca MT |
391 | <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option> |
392 | <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option> | |
393 | <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option> | |
394 | </select> | |
395 | </td> | |
ac1cfefa MT |
396 | </tr> |
397 | <tr> | |
398 | <td><br /> | |
8d29504c | 399 | $Lang::tr{'ids rules license'} <a href='https://www.snort.org/subscribe' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}<br /><br /> |
4935eb8b | 400 | $Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'} |
ac1cfefa MT |
401 | </td> |
402 | </tr> | |
403 | <tr> | |
5a3e0dca | 404 | <td nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td> |
ac1cfefa MT |
405 | </tr> |
406 | <tr> | |
a232b58c | 407 | <td width='30%' align='left'><br><input type='submit' name='RULESET' value='$Lang::tr{'download new ruleset'}' /> |
ac1cfefa MT |
408 | END |
409 | ; | |
42d9192e | 410 | if ( -e "/var/tmp/snortrules.tar.gz"){ |
0972c650 CS |
411 | my @Info = stat("/var/tmp/snortrules.tar.gz"); |
412 | $snortsettings{'INSTALLDATE'} = localtime($Info[9]); | |
ac1cfefa | 413 | } |
32810952 CS |
414 | print " $Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>"; |
415 | ||
ac1cfefa MT |
416 | print <<END |
417 | </tr> | |
418 | </table> | |
7cc8a0e5 | 419 | <br><br> |
ac1cfefa MT |
420 | <table width='100%'> |
421 | <tr> | |
a232b58c | 422 | <td align='right'><input type='submit' name='SNORT' value='$Lang::tr{'save'}' /></td> |
ac1cfefa MT |
423 | </tr> |
424 | </table> | |
425 | </form> | |
426 | END | |
427 | ; | |
428 | ||
ac1cfefa | 429 | &Header::closebox(); |
fbfdb241 | 430 | |
f7fcd1c0 | 431 | &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'}); |
298723b9 SS |
432 | print"<form method='POST' action='$ENV{'SCRIPT_NAME'}'>\n"; |
433 | ||
f7fcd1c0 | 434 | # Output display table for rule files |
17726644 | 435 | print "<table width='100%'>\n"; |
ce0e83b3 | 436 | |
17726644 SS |
437 | # Local variable required for java script to show/hide |
438 | # rules of a rulefile. | |
439 | my $rulesetcount = 1; | |
f7fcd1c0 SS |
440 | |
441 | # Loop over each rule file | |
442 | foreach my $rulefile (sort keys(%snortrules)) { | |
443 | my $rulechecked = ''; | |
444 | ||
f7fcd1c0 | 445 | # Check if rule file is enabled |
e5738079 | 446 | if ($snortrules{$rulefile}{'Rulefile'}{'State'} eq 'on') { |
f7fcd1c0 SS |
447 | $rulechecked = 'CHECKED'; |
448 | } | |
3ffee04b | 449 | |
17726644 SS |
450 | # Table and rows for the rule files. |
451 | print"<tr>\n"; | |
452 | print"<td class='base' width='5%'>\n"; | |
e5738079 | 453 | print"<input type='checkbox' name='$rulefile' $rulechecked>\n"; |
17726644 SS |
454 | print"</td>\n"; |
455 | print"<td class='base' width='90%'><b>$rulefile</b></td>\n"; | |
456 | print"<td class='base' width='5%' align='right'>\n"; | |
457 | print"<a href=\"javascript:showhide('ruleset$rulesetcount')\">SHOW</a>\n"; | |
458 | print"</td>\n"; | |
459 | print"</tr>\n"; | |
460 | ||
461 | # Rows which will be hidden per default and will contain the single rules. | |
462 | print"<tr style='display:none' id='ruleset$rulesetcount'>\n"; | |
463 | print"<td colspan='3'>\n"; | |
464 | ||
465 | # Local vars | |
466 | my $lines; | |
467 | my $rows; | |
468 | my $col; | |
469 | ||
470 | # New table for the single rules. | |
471 | print "<table width='100%'>\n"; | |
472 | ||
473 | # Loop over rule file rules | |
474 | foreach my $sid (sort {$a <=> $b} keys(%{$snortrules{$rulefile}})) { | |
f7fcd1c0 | 475 | # Local vars |
17726644 | 476 | my $ruledefchecked = ''; |
f9c2147d | 477 | |
e5738079 SS |
478 | # Skip rulefile itself. |
479 | next if ($sid eq "Rulefile"); | |
480 | ||
17726644 SS |
481 | # If 2 rules have been displayed, start a new row |
482 | if (($lines % 2) == 0) { | |
483 | print "</tr><tr>\n"; | |
3ffee04b | 484 | |
17726644 SS |
485 | # Increase rows by once. |
486 | $rows++; | |
487 | } | |
f7fcd1c0 | 488 | |
17726644 SS |
489 | # Colour lines. |
490 | if ($rows % 2) { | |
491 | $col="bgcolor='$color{'color20'}'"; | |
492 | } else { | |
493 | $col="bgcolor='$color{'color22'}'"; | |
f7fcd1c0 SS |
494 | } |
495 | ||
17726644 | 496 | # Set rule state |
298723b9 | 497 | if ($snortrules{$rulefile}{$sid}{'State'} eq 'on') { |
17726644 | 498 | $ruledefchecked = 'CHECKED'; |
f7fcd1c0 | 499 | } |
3ffee04b | 500 | |
17726644 SS |
501 | # Create rule checkbox and display rule description |
502 | print "<td class='base' width='5%' align='right' $col>\n"; | |
503 | print "<input type='checkbox' NAME='$sid' $ruledefchecked>\n"; | |
504 | print "</td>\n"; | |
505 | print "<td class='base' width='45%' $col>$snortrules{$rulefile}{$sid}{'Description'}</td>"; | |
506 | ||
507 | # Increment rule count | |
508 | $lines++; | |
509 | } | |
510 | ||
511 | # If do not have a second rule for row, create empty cell | |
512 | if (($lines % 2) != 0) { | |
513 | print "<td class='base'></td>"; | |
f7fcd1c0 SS |
514 | } |
515 | ||
516 | # Close display table | |
17726644 | 517 | print "</tr></table></td></tr>"; |
3ffee04b | 518 | |
17726644 SS |
519 | # Finished whith the rule file, increase count. |
520 | $rulesetcount++; | |
f7fcd1c0 | 521 | } |
17726644 SS |
522 | |
523 | # Close display table | |
524 | print "</table>"; | |
525 | ||
f7fcd1c0 | 526 | print <<END |
2999f1d2 CS |
527 | <table width='100%'> |
528 | <tr> | |
298723b9 | 529 | <td width='100%' align='right'><input type='submit' name='RULESET' value='$Lang::tr{'update'}'> |
3ffee04b CS |
530 | <!-- space for future online help link --> |
531 | </td> | |
2999f1d2 CS |
532 | </tr> |
533 | </table> | |
298723b9 | 534 | </form> |
3ffee04b CS |
535 | END |
536 | ; | |
f7fcd1c0 | 537 | &Header::closebox(); |
ac1cfefa MT |
538 | &Header::closebigbox(); |
539 | &Header::closepage(); | |
540 | ||
500c5c55 SS |
541 | sub working ($) { |
542 | my $message = $_[0]; | |
543 | ||
544 | &Header::openpage($Lang::tr{'intrusion detection system'}, 1, ''); | |
545 | &Header::openbigbox('100%', 'left', '', $errormessage); | |
546 | &Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='1'>" ); | |
547 | print <<END; | |
548 | <table> | |
549 | <tr> | |
550 | <td><img src='/images/indicator.gif' alt='$Lang::tr{'aktiv'}' /></td> | |
551 | <td>$message</td> | |
552 | </tr> | |
553 | <tr> | |
554 | <td colspan='2' align='center'> | |
555 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> | |
556 | <input type='image' alt='$Lang::tr{'reload'}' title='$Lang::tr{'reload'}' src='/images/view-refresh.png' /> | |
557 | </form> | |
558 | </tr> | |
559 | </table> | |
560 | END | |
561 | &Header::closebox(); | |
562 | &Header::closebigbox(); | |
563 | &Header::closepage(); | |
564 | exit; | |
a70d269a SS |
565 | } |
566 | ||
ac1cfefa | 567 | sub downloadrulesfile { |
73231650 CS |
568 | my $peer; |
569 | my $peerport; | |
ac1cfefa | 570 | |
73231650 | 571 | unlink("/var/tmp/log"); |
ac1cfefa MT |
572 | |
573 | unless (-e "${General::swroot}/red/active") { | |
574 | $errormessage = $Lang::tr{'could not download latest updates'}; | |
575 | return undef; | |
576 | } | |
577 | ||
afe26a05 SS |
578 | # Gather snort settings. |
579 | my %snortsettings = (); | |
580 | &General::readhash("${General::swroot}/snort/settings", \%snortsettings); | |
581 | ||
582 | # Get all available ruleset locations. | |
583 | my %urls=(); | |
584 | &General::readhash("${General::swroot}/snort/ruleset-sources.list", \%urls); | |
585 | ||
586 | # Grab the right url based on the configured vendor. | |
587 | my $url = $urls{$snortsettings{'RULES'}}; | |
588 | ||
589 | # Check and pass oinkcode if the vendor requires one. | |
590 | $url =~ s/\<oinkcode\>/$snortsettings{'OINKCODE'}/g; | |
591 | ||
592 | # Abort if no url could be determined for the vendor. | |
593 | unless($url) { | |
594 | $errormessage = $Lang::tr{'could not download latest updates'}; | |
595 | return undef; | |
596 | } | |
597 | ||
ac1cfefa MT |
598 | my %proxysettings=(); |
599 | &General::readhash("${General::swroot}/proxy/settings", \%proxysettings); | |
600 | ||
601 | if ($_=$proxysettings{'UPSTREAM_PROXY'}) { | |
73231650 | 602 | ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/); |
ac1cfefa MT |
603 | } |
604 | ||
73231650 | 605 | if ($peer) { |
1f606aef | 606 | system("wget -r --proxy=on --proxy-user=$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 | 607 | } else { |
1f606aef | 608 | system("wget -r -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url"); |
ac1cfefa | 609 | } |
ac1cfefa | 610 | } |
3da6e01b | 611 | |
56dacb58 SS |
612 | sub oinkmaster () { |
613 | # Call oinkmaster to generate ruleset. | |
ef5171ab | 614 | system("/usr/local/bin/oinkmaster.pl -v -s -u file:///var/tmp/snortrules.tar.gz -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules 2>&1 &"); |
56dacb58 SS |
615 | } |
616 | ||
3da6e01b SS |
617 | sub readrulesfile ($) { |
618 | my $rulefile = shift; | |
619 | ||
620 | # Open rule file and read in contents | |
621 | open(RULEFILE, "$snortrulepath/$rulefile") or die "Unable to read $rulefile!"; | |
622 | ||
623 | # Store file content in an array. | |
624 | my @lines = <RULEFILE>; | |
625 | ||
626 | # Close file. | |
627 | close(RULEFILE); | |
628 | ||
629 | # Loop over rule file contents | |
630 | foreach my $line (@lines) { | |
631 | # Remove whitespaces. | |
632 | chomp $line; | |
633 | ||
634 | # Skip blank lines. | |
635 | next if ($line =~ /^\s*$/); | |
636 | ||
637 | # Local vars. | |
638 | my $sid; | |
639 | my $msg; | |
640 | ||
641 | # Gather rule sid and message from the ruleline. | |
642 | if ($line =~ m/.*msg:\"(.*?)\"\; .* sid:(.*?); /) { | |
643 | $msg = $1; | |
644 | $sid = $2; | |
645 | ||
646 | # Check if a rule has been found. | |
647 | if ($sid && $msg) { | |
648 | # Add rule to the snortrules hash. | |
649 | $snortrules{$rulefile}{$sid}{'Description'} = $msg; | |
650 | ||
651 | # Grab status of the rule. Check if ruleline starts with a "dash". | |
652 | if ($line =~ /^\#/) { | |
653 | # If yes, the rule is disabled. | |
298723b9 | 654 | $snortrules{$rulefile}{$sid}{'State'} = "off"; |
3da6e01b SS |
655 | } else { |
656 | # Otherwise the rule is enabled. | |
298723b9 | 657 | $snortrules{$rulefile}{$sid}{'State'} = "on"; |
3da6e01b SS |
658 | } |
659 | } | |
660 | } | |
661 | } | |
662 | } |