html/cgi-bin/ids.cgi

   1 #!/usr/bin/perl
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2007  Michael Tremer & Christian Schmidt                      #
   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
  23 use LWP::UserAgent;
  24 use File::Copy;
  25 use File::Temp qw/ tempfile tempdir /;
  26 use strict;
  27
  28 # enable only the following on debugging purpose
  29 #use warnings;
  30 #use CGI::Carp 'fatalsToBrowser';
  31
  32 require '/var/ipfire/general-functions.pl';
  33 require "${General::swroot}/lang.pl";
  34 require "${General::swroot}/header.pl";
  35
  36 my %color = ();
  37 my %mainsettings = ();
  38 &General::readhash("${General::swroot}/main/settings", \%mainsettings);
  39 &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
  40
  41 my %snortsettings=();
  42 my %checked=();
  43 my %selected=();
  44 my %netsettings=();
  45 our $errormessage = '';
  46 our $results = '';
  47 our $tempdir = '';
  48 our $url='';
  49 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
  50
  51 &Header::showhttpheaders();
  52
  53 $snortsettings{'ENABLE_SNORT'} = 'off';
  54 $snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
  55 $snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
  56 $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
  57 $snortsettings{'ENABLE_GUARDIAN'} = 'off';
  58 $snortsettings{'GUARDIAN_INTERFACE'} = `cat /var/ipfire/red/iface`;
  59 $snortsettings{'GUARDIAN_HOSTGATEWAYBYTE'} = '1';
  60 $snortsettings{'GUARDIAN_LOGFILE'} = '/var/log/guardian/guardian.log';
  61 $snortsettings{'GUARDIAN_ALERTFILE'} = '/var/log/snort/alert';
  62 $snortsettings{'GUARDIAN_IGNOREFILE'} = '/var/ipfire/guardian/guardian.ignore';
  63 $snortsettings{'GUARDIAN_TARGETFILE'} = '/var/ipfire/guardian/guardian.target';
  64 $snortsettings{'GUARDIAN_TIMELIMIT'} = '86400';
  65 $snortsettings{'ACTION'} = '';
  66 $snortsettings{'ACTION2'} = '';
  67 $snortsettings{'RULES'} = '';
  68 $snortsettings{'OINKCODE'} = '';
  69 $snortsettings{'INSTALLDATE'} = '';
  70
  71 &Header::getcgihash(\%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'});
  72
  73 ####################### Added for snort rules control #################################
  74 my $snortrulepath; # change to "/etc/snort/rules" - maniac
  75 my @snortconfig;
  76 my $restartsnortrequired = 0;
  77 my %snortrules;
  78 my $rule = '';
  79 my $table1colour = '';
  80 my $table2colour = '';
  81 my $var = '';
  82 my $value = '';
  83 my $tmp = '';
  84 my $linkedrulefile = '';
  85 my $border = '';
  86 my $checkboxname = '';
  87
  88 if (-e "/etc/snort/snort.conf") {
  89
  90
  91         # Open snort.conf file, read it in, close it, and re-open for writing
  92         open(FILE, "/etc/snort/snort.conf") or die 'Unable to read snort config file.';
  93         @snortconfig = <FILE>;
  94         close(FILE);
  95         open(FILE, ">/etc/snort/snort.conf") or die 'Unable to write snort config file.';
  96
  97     my @rules = `cd /etc/snort/rules/ && ls *.rules`;    # With this loop the rule might be display with correct rulepath set
  98         foreach (@rules) {
  99         chomp $_;
 100         my $temp = join(";",@snortconfig);
 101     if ( $temp =~ /$_/ ){next;}
 102     else { push(@snortconfig,"#include \$RULE_PATH/".$_);}
 103         }
 104
 105         # Loop over each line
 106         foreach my $line (@snortconfig) {
 107                 # Trim the line
 108                 chomp $line;
 109
 110                 # Check for a line with .rules
 111                 if ($line =~ /\.rules$/) {
 112                         # Parse out rule file name
 113                         $rule = $line;
 114                         $rule =~ s/\$RULE_PATH\///i;
 115                         $rule =~ s/ ?include ?//i;
 116                         $rule =~ s/\#//i;
 117                         my $snortrulepathrule = "$snortrulepath/$rule";
 118
 119                         # Open rule file and read in contents
 120                         open(RULEFILE, "$snortrulepath/$rule") or die "Unable to read snort rule file for reading => $snortrulepath/$rule.";
 121                         my @snortrulefile = <RULEFILE>;
 122                         close(RULEFILE);
 123                         open(RULEFILE, ">$snortrulepath/$rule") or die "Unable to write snort rule file for writing $snortrulepath/$rule";
 124
 125                         # Local vars
 126                         my $dashlinecnt = 0;
 127                         my $desclook = 1;
 128                         my $snortruledesc = '';
 129                         my %snortruledef = ();
 130                         my $rulecnt = 1;
 131
 132                         # Loop over rule file contents
 133                         foreach my $ruleline (@snortrulefile) {
 134                                 chomp $ruleline;
 135
 136                                 # If still looking for a description
 137                                 if ($desclook) {
 138                                         # If line does not start with a # anymore, then done looking for a description
 139                                         if ($ruleline !~ /^\#/) {
 140                                                 $desclook = 0;
 141                                         }
 142
 143                                         # If see more than one dashed line, (start to) create rule file description
 144                                         if ($dashlinecnt > 1) {
 145                                                 # Check for a line starting with a #
 146                                                 if ($ruleline =~ /^\#/) {
 147                                                         # Create tempruleline
 148                                                         my $tempruleline = $ruleline;
 149
 150                                                         # Strip off # and clean up line
 151                                                         $tempruleline =~ s/\# ?//i;
 152
 153                                                         # Check for part of a description
 154                                                         if ($snortruledesc eq '') {
 155                                                                 $snortruledesc = $tempruleline;
 156                                                         } else {
 157                                                                 $snortruledesc .= " $tempruleline";
 158                                                         }
 159                                                 } else {
 160                                                         # Must be done
 161                                                         $desclook = 0;
 162                                                 }
 163                                         }
 164
 165                                         # If have a dashed line, increment count
 166                                         if ($ruleline =~ /\# ?\-+/) {
 167                                                 $dashlinecnt++;
 168                                         }
 169                                 } else {
 170                                         # Parse out rule file rule's message for display
 171                                         if ($ruleline =~ /(msg\:\"[^\"]+\";)/) {
 172                                                 my $msg = '';
 173                                                 $msg = $1;
 174                                                 $msg =~ s/msg\:\"//i;
 175                                                 $msg =~ s/\";//i;
 176                                                 $snortruledef{$rulecnt}{'Description'} = $msg;
 177
 178                                                 # Check for 'Save' and rule file displayed in query string
 179                                                 if (($snortsettings{'ACTION'} eq $Lang::tr{'update'}) && ($ENV{'QUERY_STRING'} =~ /$rule/i)) {
 180                                                         # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
 181                                                         if ((($ruleline =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"})) || (($ruleline !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}))) {
 182                                                                 $restartsnortrequired = 1;
 183                                                         }
 184
 185                                                         # Strip out leading # from rule line
 186                                                         $ruleline =~ s/\# ?//i;
 187
 188                                                         # Check if it does not exists (which means it is disabled), append a #
 189                                                         if (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}) {
 190                                                                 $ruleline = "#"." $ruleline";
 191                                                         }
 192                                                 }
 193
 194                                                 # Check if ruleline does not begin with a #, so it is enabled
 195                                                 if ($ruleline !~ /^\#/) {
 196                                                         $snortruledef{$rulecnt++}{'State'} = 'Enabled';
 197                                                 } else {
 198                                                         # Otherwise it is disabled
 199                                                         $snortruledef{$rulecnt++}{'State'} = 'Disabled';
 200                                                 }
 201                                         }
 202                                 }
 203
 204                                 # Print ruleline to RULEFILE
 205                                 print RULEFILE "$ruleline\n";
 206                         }
 207
 208                         # Close RULEFILE
 209                         close(RULEFILE);
 210
 211                         # Check for 'Save'
 212                         if ($snortsettings{'ACTION'} eq $Lang::tr{'update'}) {
 213                                 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
 214                                 if ((($line =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule"})) || (($line !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule"}))) {
 215                                         $restartsnortrequired = 1;
 216                                 }
 217
 218                                 # Strip out leading # from rule line
 219                                 $line =~ s/\# ?//i;
 220
 221                                 # Check if it does not exists (which means it is disabled), append a #
 222                                 if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
 223                                         $line = "# $line";
 224                                 }
 225
 226                         }
 227
 228                         # Check for rule state
 229                         if ($line =~ /^\#/) {
 230                                 $snortrules{$rule}{"State"} = "Disabled";
 231                         } else {
 232                                 $snortrules{$rule}{"State"} = "Enabled";
 233                         }
 234
 235                         # Set rule description
 236                         $snortrules{$rule}{"Description"} = $snortruledesc;
 237
 238                         # Loop over sorted rules
 239                         foreach my $ruledef (sort {$a <=> $b} keys(%snortruledef)) {
 240                                 $snortrules{$rule}{"Definition"}{$ruledef}{'Description'} = $snortruledef{$ruledef}{'Description'};
 241                                 $snortrules{$rule}{"Definition"}{$ruledef}{'State'} = $snortruledef{$ruledef}{'State'};
 242                         }
 243
 244                         $snortruledesc = '';
 245                         print FILE "$line\n";
 246                 } elsif ($line =~ /var RULE_PATH/) {
 247                         ($tmp, $tmp, $snortrulepath) = split(' ', $line);
 248                         print FILE "$line\n";
 249                 } else {
 250                         print FILE "$line\n";
 251                 }
 252         }
 253         close(FILE);
 254
 255         if ($restartsnortrequired) {
 256                 system('/usr/local/bin/snortctrl restart >/dev/null');
 257         }
 258 }
 259
 260 #######################  End added for snort rules control  #################################
 261
 262 if ($snortsettings{'RULES'} eq 'subscripted') {
 263         #$url="http://dl.snort.org/sub-rules/snortrules-snapshot-2.8_s.tar.gz?oink_code=$snortsettings{'OINKCODE'}";
 264         $url="http://dl.snort.org/sub-rules/snortrules-snapshot-2860_s.tar.gz?oink_code=$snortsettings{'OINKCODE'}";
 265         #$url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.8_s.tar.gz";
 266 } elsif ($snortsettings{'RULES'} eq 'registered') {
 267         #$url="http://dl.snort.org/reg-rules/snortrules-snapshot-2.8.tar.gz?oink_code=$snortsettings{'OINKCODE'}";
 268         $url="http://dl.snort.org/reg-rules/snortrules-snapshot-2860.tar.gz?oink_code=$snortsettings{'OINKCODE'}";
 269         #$url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.8.tar.gz";
 270 } else {
 271         $url="http://www.snort.org/pub-bin/downloads.cgi/Download/comm_rules/Community-Rules-CURRENT.tar.gz";
 272 }
 273
 274 if ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "snort" )
 275 {
 276         $errormessage = $Lang::tr{'invalid input for oink code'} unless (
 277             ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/)  ||
 278             ($snortsettings{'RULESTYPE'} eq 'nothing' )       );
 279
 280         &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
 281         if ($snortsettings{'ENABLE_SNORT'} eq 'on')
 282         {
 283                 system ('/usr/bin/touch', "${General::swroot}/snort/enable");
 284         } else {
 285                 unlink "${General::swroot}/snort/enable";
 286         }
 287         if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
 288         {
 289                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
 290         } else {
 291                 unlink "${General::swroot}/snort/enable_green";
 292         }
 293         if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
 294         {
 295                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
 296         } else {
 297                 unlink "${General::swroot}/snort/enable_blue";
 298         }
 299         if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
 300         {
 301                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
 302         } else {
 303                 unlink "${General::swroot}/snort/enable_orange";
 304         }
 305         if ($snortsettings{'ENABLE_PREPROCESSOR_HTTP_INSPECT'} eq 'on')
 306         {
 307                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_preprocessor_http_inspect");
 308         } else {
 309                 unlink "${General::swroot}/snort/enable_preprocessor_http_inspect";
 310         }
 311         if ($snortsettings{'ENABLE_GUARDIAN'} eq 'on')
 312         {
 313                 system ('/usr/bin/touch', "${General::swroot}/guardian/enable");
 314         } else {
 315                 unlink "${General::swroot}/guardian/enable";
 316         }
 317
 318         system('/usr/local/bin/snortctrl restart >/dev/null');
 319
 320 } elsif ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "guardian" ){
 321                         foreach my $key (keys %snortsettings){
 322                                 if ( $key !~ /^GUARDIAN/ ){
 323                                         delete $snortsettings{$key};
 324                                 }
 325                         }
 326                         &General::writehashpart("${General::swroot}/snort/settings", \%snortsettings);
 327                         open(IGNOREFILE, ">$snortsettings{'GUARDIAN_IGNOREFILE'}") or die "Unable to write guardian ignore file $snortsettings{'GUARDIAN_IGNOREFILE'}";
 328                                 print IGNOREFILE $snortsettings{'GUARDIAN_IGNOREFILE_CONTENT'};
 329                         close(IGNOREFILE);
 330                         open(GUARDIAN, ">/var/ipfire/guardian/guardian.conf") or die "Unable to write guardian conf /var/ipfire/guardian/guardian.conf";
 331                                 print GUARDIAN <<END
 332 Interface   $snortsettings{'GUARDIAN_INTERFACE'}
 333 HostGatewayByte   $snortsettings{'GUARDIAN_HOSTGATEWAYBYTE'}
 334 LogFile   $snortsettings{'GUARDIAN_LOGFILE'}
 335 AlertFile   $snortsettings{'GUARDIAN_ALERTFILE'}
 336 IgnoreFile   $snortsettings{'GUARDIAN_IGNOREFILE'}
 337 TargetFile   $snortsettings{'GUARDIAN_TARGETFILE'}
 338 TimeLimit   $snortsettings{'GUARDIAN_TIMELIMIT'}
 339 END
 340 ;
 341                         close(GUARDIAN);
 342                 system('/usr/local/bin/snortctrl restart >/dev/null');
 343 }
 344          # INSTALLMD5 is not in the form, so not retrieved by getcgihash
 345         &General::readhash("${General::swroot}/snort/settings", \%snortsettings);
 346
 347 if ($snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'}) {
 348
 349         my @df = `/bin/df -B M /var`;
 350         foreach my $line (@df) {
 351                 next if $line =~ m/^Filesystem/;
 352
 353                 if ($line =~ m/dev/ ) {
 354                 $line =~ m/^.* (\d+)M.*$/;
 355                 my @temp = split(/ +/,$line);
 356                         if ($1<300) {
 357                                 $errormessage = "$Lang::tr{'not enough disk space'} < 300MB, /var $1MB";
 358                         } else {
 359                                 my $filename = &downloadrulesfile();
 360                                 if (defined $filename) {
 361                                                 $results = "<b>$Lang::tr{'installed updates'}</b>\n<pre>";
 362                                                 $results .=`/usr/local/bin/oinkmaster.pl -s -u file://$filename -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules 2>&1`;
 363                                                 $results .= "</pre>";
 364                                         }
 365                                         unlink ($filename);
 366                         }
 367
 368                 }
 369         }
 370
 371
 372 }
 373
 374 $checked{'ENABLE_SNORT'}{'off'} = '';
 375 $checked{'ENABLE_SNORT'}{'on'} = '';
 376 $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
 377 $checked{'ENABLE_SNORT_GREEN'}{'off'} = '';
 378 $checked{'ENABLE_SNORT_GREEN'}{'on'} = '';
 379 $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'";
 380 $checked{'ENABLE_SNORT_BLUE'}{'off'} = '';
 381 $checked{'ENABLE_SNORT_BLUE'}{'on'} = '';
 382 $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'";
 383 $checked{'ENABLE_SNORT_ORANGE'}{'off'} = '';
 384 $checked{'ENABLE_SNORT_ORANGE'}{'on'} = '';
 385 $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'";
 386 $checked{'ENABLE_GUARDIAN'}{'off'} = '';
 387 $checked{'ENABLE_GUARDIAN'}{'on'} = '';
 388 $checked{'ENABLE_GUARDIAN'}{$snortsettings{'ENABLE_GUARDIAN'}} = "checked='checked'";
 389 $selected{'RULES'}{'nothing'} = '';
 390 $selected{'RULES'}{'community'} = '';
 391 $selected{'RULES'}{'registered'} = '';
 392 $selected{'RULES'}{'subscripted'} = '';
 393 $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'";
 394
 395 &Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
 396
 397 ####################### Added for snort rules control #################################
 398 print "<SCRIPT LANGUAGE='JavaScript' SRC='/include/snortupdateutility.js'></SCRIPT>";
 399 print <<END
 400 <STYLE TYPE="text/css">
 401 <!--
 402 .section {
 403         border: groove;
 404 }
 405 .row1color {
 406         border: ridge;
 407         background-color: $color{'color22'};
 408 }
 409 .row2color {
 410         border: ridge;
 411         background-color: $color{'color20'};
 412 }
 413 .rowselected {
 414         border: double #FF0000;
 415         background-color: #DCDCDC;
 416 }
 417 -->
 418 </STYLE>
 419 END
 420 ;
 421 #######################  End added for snort rules control  #################################
 422
 423 &Header::openbigbox('100%', 'left', '', $errormessage);
 424
 425 ###############
 426 # DEBUG DEBUG
 427 # &Header::openbox('100%', 'left', 'DEBUG');
 428 # my $debugCount = 0;
 429 # foreach my $line (sort keys %snortsettings) {
 430 # print "$line = $snortsettings{$line}<br />\n";
 431 # $debugCount++;
 432 # }
 433 # print "&nbsp;Count: $debugCount\n";
 434 # &Header::closebox();
 435 # DEBUG DEBUG
 436 ###############
 437
 438 if ($errormessage) {
 439         &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
 440         print "<class name='base'>$errormessage\n";
 441         print "&nbsp;</class>\n";
 442         &Header::closebox();
 443 }
 444
 445 &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system2'});
 446 print <<END
 447 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
 448 <tr><td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />GREEN Snort
 449 END
 450 ;
 451 if ($netsettings{'BLUE_DEV'} ne '') {
 452   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} />   BLUE Snort";
 453 }
 454 if ($netsettings{'ORANGE_DEV'} ne '') {
 455   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} />   ORANGE Snort";
 456 }
 457   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} />   RED Snort";
 458 if ( -e "/var/ipfire/guardian/guardian.conf" ) {
 459   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_GUARDIAN' $checked{'ENABLE_GUARDIAN'}{'on'} />  Guardian";
 460 }
 461
 462 print <<END
 463 </td></tr>
 464 <tr>
 465         <td><hr /></td>
 466 </tr>
 467 <tr>
 468         <td><b>$Lang::tr{'ids rules update'}</b></td>
 469 </tr>
 470 <tr>
 471         <td><select name='RULES'>
 472                                 <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
 473                                 <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
 474                                 <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
 475                                 <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
 476                         </select>
 477         </td>
 478 </tr>
 479 <tr>
 480         <td><br />
 481                 $Lang::tr{'ids rules license'} <a href='https://www.snort.org/signup' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}<br /><br />
 482                 $Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'}
 483         </td>
 484 </tr>
 485 <tr>
 486         <td nowrap='nowrap'>Oinkcode:&nbsp;<input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
 487 </tr>
 488 <tr>
 489         <td width='30%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
 490 END
 491 ;
 492
 493 if ( $snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'} ) {
 494         $snortsettings{'INSTALLDATE'} = `/bin/date +'%Y-%m-%d'`;
 495         &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
 496 }
 497 print "&nbsp;$Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>";
 498
 499 print <<END
 500 </tr>
 501 </table>
 502 <hr />
 503 <table width='100%'>
 504 <tr>
 505         <td align='center'><input type='hidden' name='ACTION2' value='snort' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
 506 </tr>
 507 </table>
 508 </form>
 509 END
 510 ;
 511
 512 if ($results ne '') {
 513         print "$results";
 514 }
 515
 516 &Header::closebox();
 517
 518 ####################### Added for guardian control ####################################
 519 if ( -e "/var/ipfire/guardian/guardian.conf" ) {
 520         &Header::openbox('100%', 'LEFT', $Lang::tr{'guardian configuration'});
 521 print <<END
 522 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
 523 <tr><td align='left' width='40%'>$Lang::tr{'guardian interface'}</td><td align='left'><input type='text' name='GUARDIAN_INTERFACE' value='$snortsettings{'GUARDIAN_INTERFACE'}' size="30" /></td></tr>
 524 <tr><td align='left' width='40%'>$Lang::tr{'guardian timelimit'}</td><td align='left'><input type='text' name='GUARDIAN_TIMELIMIT' value='$snortsettings{'GUARDIAN_TIMELIMIT'}' size="30" /></td></tr>
 525 <tr><td align='left' width='40%'>$Lang::tr{'guardian logfile'}</td><td align='left'><input type='text' name='GUARDIAN_LOGFILE' value='$snortsettings{'GUARDIAN_LOGFILE'}' size="30" /></td></tr>
 526 <tr><td align='left' width='40%'>$Lang::tr{'guardian alertfile'}</td><td align='left'><input type='text' name='GUARDIAN_ALERTFILE' value='$snortsettings{'GUARDIAN_ALERTFILE'}' size="30" /></td></tr>
 527 <tr><td align='left' width='40%'>$Lang::tr{'guardian ignorefile'}</td><td align='left'><textarea name='GUARDIAN_IGNOREFILE_CONTENT' cols='32' rows='6' wrap='off'>
 528 END
 529 ;
 530         print `cat /var/ipfire/guardian/guardian.ignore`;
 531 print <<END
 532 </textarea></td></tr>
 533 <tr><td align='center' colspan='2'><input type='hidden' name='ACTION2' value='guardian' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td></tr>
 534 </table>
 535 </form>
 536 END
 537 ;
 538         &Header::closebox();
 539 }
 540
 541
 542
 543
 544 ####################### Added for snort rules control #################################
 545 if ( -e "${General::swroot}/snort/enable" || -e "${General::swroot}/snort/enable_green" || -e "${General::swroot}/snort/enable_blue" || -e "${General::swroot}/snort/enable_orange" ) {
 546         &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
 547                 # Output display table for rule files
 548                 print "<TABLE width='100%'><TR><TD VALIGN='TOP'><TABLE>";
 549
 550                 print "<form method='post'>";
 551
 552                 # Local vars
 553                 my $ruledisplaycnt = 1;
 554                 my $rulecnt = keys %snortrules;
 555                 $rulecnt++;
 556                 $rulecnt = $rulecnt / 2;
 557
 558                 # Loop over each rule file
 559                 foreach my $rulefile (sort keys(%snortrules)) {
 560                         my $rulechecked = '';
 561
 562                         # Check if reached half-way through rule file rules to start new column
 563                 if ($ruledisplaycnt > $rulecnt) {
 564                                 print "</TABLE></TD><TD VALIGN='TOP'><TABLE>";
 565                                 $ruledisplaycnt = 0;
 566                         }
 567
 568                         # Check if rule file is enabled
 569                         if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
 570                                 $rulechecked = 'CHECKED';
 571                         }
 572
 573                         # Create rule file link, vars array, and display flag
 574                         my $rulefilelink = "?RULEFILE=$rulefile";
 575                         my $rulefiletoclose = '';
 576                         my @queryvars = ();
 577                         my $displayrulefilerules = 0;
 578
 579                         # Check for passed in query string
 580                         if ($ENV{'QUERY_STRING'}) {
 581                                 # Split out vars
 582                                 @queryvars = split(/\&/, $ENV{'QUERY_STRING'});
 583
 584                                 # Loop over values
 585                                 foreach $value (@queryvars) {
 586                                         # Split out var pairs
 587                                         ($var, $linkedrulefile) = split(/=/, $value);
 588
 589                                         # Check if var is 'RULEFILE'
 590                                         if ($var eq 'RULEFILE') {
 591                                                 # Check if rulefile equals linkedrulefile
 592                                                 if ($rulefile eq $linkedrulefile) {
 593                                                         # Set display flag
 594                                                         $displayrulefilerules = 1;
 595
 596                                                         # Strip out rulefile from rulefilelink
 597                                                         $rulefilelink =~ s/RULEFILE=$linkedrulefile//g;
 598                                                 } else {
 599                                                         # Add linked rule file to rulefilelink
 600                                                         $rulefilelink .= "&RULEFILE=$linkedrulefile";
 601                                                 }
 602                                         }
 603                                 }
 604                         }
 605
 606                         # Strip out extra & & ? from rulefilelink
 607                         $rulefilelink =~ s/^\?\&/\?/i;
 608
 609                         # Check for a single '?' and replace with page for proper link display
 610                         if ($rulefilelink eq '?') {
 611                                 $rulefilelink = "ids.cgi";
 612                         }
 613
 614                         # Output rule file name and checkbox
 615                         print "<TR><TD CLASS='base' VALIGN='TOP'><INPUT TYPE='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <A HREF='$rulefilelink'>$rulefile</A></TD></TR>";
 616                         print "<TR><TD CLASS='base' VALIGN='TOP'>";
 617
 618                         # Check for empty 'Description'
 619                         if ($snortrules{$rulefile}{'Description'} eq '') {
 620                                 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>No description available</TD></TR>";
 621                         } else {
 622                                 # Output rule file 'Description'
 623                                 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>$snortrules{$rulefile}{'Description'}</TD></TR>";
 624                         }
 625
 626                         # Check for display flag
 627                         if ($displayrulefilerules) {
 628                                 # Rule file definition rule display
 629                                 print "<TR><TD CLASS='base' VALIGN='TOP'><TABLE border=1><TR>";
 630
 631                                 # Local vars
 632                                 my $ruledefdisplaycnt = 0;
 633                                 my $ruledefcnt = keys %{$snortrules{$rulefile}{"Definition"}};
 634                                 $ruledefcnt++;
 635                                 $ruledefcnt = $ruledefcnt / 2;
 636
 637                                 # Loop over rule file rules
 638                                 foreach my $ruledef (sort {$a <=> $b} keys(%{$snortrules{$rulefile}{"Definition"}})) {
 639                                         # Local vars
 640                                         my $ruledefchecked = '';
 641
 642                                         # If have display 2 rules, start new row
 643                                         if (($ruledefdisplaycnt % 2) == 0) {
 644                                                 print "</TR><TR>";
 645                                                 $ruledefdisplaycnt = 0;
 646                                         }
 647
 648                                         # Check for rules state
 649                                         if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
 650                                                 $ruledefchecked = 'CHECKED';
 651                                         }
 652
 653                                         # Create rule file rule's checkbox
 654                                         $checkboxname = "SNORT_RULE_$rulefile";
 655                                         $checkboxname .= "_$ruledef";
 656                                         print "<TD CLASS='base'><INPUT TYPE='checkbox' NAME='$checkboxname' $ruledefchecked> $snortrules{$rulefile}{'Definition'}{$ruledef}{'Description'}</TD>";
 657
 658                                         # Increment count
 659                                         $ruledefdisplaycnt++;
 660                                 }
 661
 662                                 # If do not have second rule for row, create empty cell
 663                                 if (($ruledefdisplaycnt % 2) != 0) {
 664                                         print "<TD CLASS='base'></TD>";
 665                                 }
 666
 667                                 # Close display table
 668                                 print "</TR></TABLE></TD></TR>";
 669                 }
 670
 671                         # Close display table
 672                         print "</TABLE>";
 673
 674                         # Increment ruledisplaycnt
 675                 $ruledisplaycnt++;
 676                 }
 677         print "</TD></TR></TABLE></TD></TR></TABLE>";
 678         print <<END
 679 <table width='100%'>
 680 <tr>
 681         <td width='33%'>&nbsp;</td>
 682         <td width='33%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
 683         <td width='33%'>
 684                 &nbsp; <!-- space for future online help link -->
 685         </td>
 686 </tr>
 687 </table>
 688 </form>
 689 END
 690 ;
 691         &Header::closebox();
 692 }
 693
 694 #######################  End added for snort rules control  #################################
 695 &Header::closebigbox();
 696 &Header::closepage();
 697
 698 sub downloadrulesfile {
 699         my $return = &geturl($url);
 700         return undef unless $return;
 701
 702         if (index($return->content, "\037\213") == -1 ) { # \037\213 is .gz beginning
 703                 $errormessage = $Lang::tr{'invalid loaded file'};
 704                 return undef;
 705         }
 706
 707         my $filename='';
 708         my $fh='';
 709         ($fh, $filename) = tempfile('/var/tmp/XXXXXXXX',SUFFIX => '.tar.gz' );#oinkmaster work only with this extension
 710         binmode ($fh);
 711         syswrite ($fh, $return->content);
 712         close($fh);
 713         return $filename;
 714 }
 715
 716 sub geturl ($) {
 717         my $url=$_[0];
 718
 719         unless (-e "${General::swroot}/red/active") {
 720                 $errormessage = $Lang::tr{'could not download latest updates'};
 721                 return undef;
 722         }
 723
 724         my $downloader = LWP::UserAgent->new;
 725         $downloader->timeout(5);
 726
 727         my %proxysettings=();
 728         &General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
 729
 730         if ($_=$proxysettings{'UPSTREAM_PROXY'}) {
 731                 my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/);
 732                 if ($proxysettings{'UPSTREAM_USER'}) {
 733                         $downloader->proxy("http","http://$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'}@"."$peer:$peerport/");
 734                 } else {
 735                         $downloader->proxy("http","http://$peer:$peerport/");
 736                 }
 737         }
 738
 739         my $return = $downloader->get($url,'Cache-Control','no-cache');
 740
 741         if ($return->code == 403) {
 742                 $errormessage = $Lang::tr{'access refused with this oinkcode'};
 743                 return undef;
 744         } elsif (!$return->is_success()) {
 745                 $errormessage = $Lang::tr{'could not download latest updates'};
 746                 return undef;
 747         }
 748
 749         return $return;
 750
 751 }