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 $md5 = '0';# not '' to avoid displaying the wrong message when INSTALLMD5 not set
  47 our $realmd5 = '';
  48 our $results = '';
  49 our $tempdir = '';
  50 our $url='';
  51 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
  52
  53 &Header::showhttpheaders();
  54
  55 $snortsettings{'ENABLE_SNORT'} = 'off';
  56 $snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
  57 $snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
  58 $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
  59 $snortsettings{'ENABLE_GUARDIAN'} = 'off';
  60 $snortsettings{'GUARDIAN_INTERFACE'} = `cat /var/ipfire/red/iface`;
  61 $snortsettings{'GUARDIAN_HOSTGATEWAYBYTE'} = '1';
  62 $snortsettings{'GUARDIAN_LOGFILE'} = '/var/log/guardian/guardian.log';
  63 $snortsettings{'GUARDIAN_ALERTFILE'} = '/var/log/snort/alert';
  64 $snortsettings{'GUARDIAN_IGNOREFILE'} = '/var/ipfire/guardian/guardian.ignore';
  65 $snortsettings{'GUARDIAN_TARGETFILE'} = '/var/ipfire/guardian/guardian.target';
  66 $snortsettings{'GUARDIAN_TIMELIMIT'} = '86400';
  67 $snortsettings{'GUARDIAN_IGNOREFILE_CONTENT'} = `cat $snortsettings{'GUARDIAN_IGNOREFILE'}`;
  68 $snortsettings{'ACTION'} = '';
  69 $snortsettings{'ACTION2'} = '';
  70 $snortsettings{'RULES'} = '';
  71 $snortsettings{'OINKCODE'} = '';
  72 $snortsettings{'INSTALLDATE'} = '';
  73 $snortsettings{'INSTALLMD5'} = '';
  74
  75 &Header::getcgihash(\%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'});
  76
  77 ####################### Added for snort rules control #################################
  78 my $snortrulepath; # change to "/etc/snort/rules" - maniac
  79 my @snortconfig;
  80 my $restartsnortrequired = 0;
  81 my %snortrules;
  82 my $rule = '';
  83 my $table1colour = '';
  84 my $table2colour = '';
  85 my $var = '';
  86 my $value = '';
  87 my $tmp = '';
  88 my $linkedrulefile = '';
  89 my $border = '';
  90 my $checkboxname = '';
  91
  92 if (-e "/etc/snort/snort.conf") {
  93
  94
  95         # Open snort.conf file, read it in, close it, and re-open for writing
  96         open(FILE, "/etc/snort/snort.conf") or die 'Unable to read snort config file.';
  97         @snortconfig = <FILE>;
  98         close(FILE);
  99         open(FILE, ">/etc/snort/snort.conf") or die 'Unable to write snort config file.';
 100
 101     my @rules = `cd /etc/snort/rules/ && ls *.rules`;    # With this loop the rule might be display with correct rulepath set
 102         foreach (@rules) {
 103         chomp $_;
 104         my $temp = join(";",@snortconfig);
 105     if ( $temp =~ /$_/ ){next;}
 106     else { push(@snortconfig,"#include \$RULE_PATH/".$_);}
 107         }
 108
 109         # Loop over each line
 110         foreach my $line (@snortconfig) {
 111         # Trim the line
 112                 chomp $line;
 113
 114                 # Check for a line with .rules
 115                 if ($line =~ /\.rules$/) {
 116                         # Parse out rule file name
 117                         $rule = $line;
 118                         $rule =~ s/\$RULE_PATH\///i;
 119                         $rule =~ s/ ?include ?//i;
 120                         $rule =~ s/\#//i;
 121                         my $snortrulepathrule = "$snortrulepath/$rule";
 122
 123                         # Open rule file and read in contents
 124                         open(RULEFILE, "$snortrulepath/$rule") or die "Unable to read snort rule file for reading => $snortrulepath/$rule.";
 125                         my @snortrulefile = <RULEFILE>;
 126                         close(RULEFILE);
 127                         open(RULEFILE, ">$snortrulepath/$rule") or die "Unable to write snort rule file for writing $snortrulepath/$rule";
 128
 129                         # Local vars
 130                         my $dashlinecnt = 0;
 131                         my $desclook = 1;
 132                         my $snortruledesc = '';
 133                         my %snortruledef = ();
 134                         my $rulecnt = 1;
 135
 136                         # Loop over rule file contents
 137                         foreach my $ruleline (@snortrulefile) {
 138                                 chomp $ruleline;
 139
 140                                 # If still looking for a description
 141                                 if ($desclook) {
 142                                         # If line does not start with a # anymore, then done looking for a description
 143                                         if ($ruleline !~ /^\#/) {
 144                                                 $desclook = 0;
 145                                         }
 146
 147                                         # If see more than one dashed line, (start to) create rule file description
 148                                         if ($dashlinecnt > 1) {
 149                                                 # Check for a line starting with a #
 150                                                 if ($ruleline =~ /^\#/) {
 151                                                         # Create tempruleline
 152                                                         my $tempruleline = $ruleline;
 153
 154                                                         # Strip off # and clean up line
 155                                                         $tempruleline =~ s/\# ?//i;
 156
 157                                                         # Check for part of a description
 158                                                         if ($snortruledesc eq '') {
 159                                                                 $snortruledesc = $tempruleline;
 160                                                         } else {
 161                                                                 $snortruledesc .= " $tempruleline";
 162                                                         }
 163                                                 } else {
 164                                                         # Must be done
 165                                                         $desclook = 0;
 166                                                 }
 167                                         }
 168
 169                                         # If have a dashed line, increment count
 170                                         if ($ruleline =~ /\# ?\-+/) {
 171                                                 $dashlinecnt++;
 172                                         }
 173                                 } else {
 174                                         # Parse out rule file rule's message for display
 175                                         if ($ruleline =~ /(msg\:\"[^\"]+\";)/) {
 176                                                 my $msg = '';
 177                                                 $msg = $1;
 178                                                 $msg =~ s/msg\:\"//i;
 179                                                 $msg =~ s/\";//i;
 180                                                 $snortruledef{$rulecnt}{'Description'} = $msg;
 181
 182                                                 # Check for 'Save' and rule file displayed in query string
 183                                                 if (($snortsettings{'ACTION'} eq $Lang::tr{'update'}) && ($ENV{'QUERY_STRING'} =~ /$rule/i)) {
 184                                                         # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
 185                                                         if ((($ruleline =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"})) || (($ruleline !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}))) {
 186                                                                 $restartsnortrequired = 1;
 187                                                         }
 188
 189                                                         # Strip out leading # from rule line
 190                                                         $ruleline =~ s/\# ?//i;
 191
 192                                                         # Check if it does not exists (which means it is disabled), append a #
 193                                                         if (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}) {
 194                                                                 $ruleline = "#"." $ruleline";
 195                                                         }
 196                                                 }
 197
 198                                                 # Check if ruleline does not begin with a #, so it is enabled
 199                                                 if ($ruleline !~ /^\#/) {
 200                                                         $snortruledef{$rulecnt++}{'State'} = 'Enabled';
 201                                                 } else {
 202                                                         # Otherwise it is disabled
 203                                                         $snortruledef{$rulecnt++}{'State'} = 'Disabled';
 204                                                 }
 205                                         }
 206                                 }
 207
 208                                 # Print ruleline to RULEFILE
 209                                 print RULEFILE "$ruleline\n";
 210                         }
 211
 212                         # Close RULEFILE
 213                         close(RULEFILE);
 214
 215                         # Check for 'Save'
 216                         if ($snortsettings{'ACTION'} eq $Lang::tr{'update'}) {
 217                                 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
 218                                 if ((($line =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule"})) || (($line !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule"}))) {
 219                                         $restartsnortrequired = 1;
 220                                 }
 221
 222                                 # Strip out leading # from rule line
 223                                 $line =~ s/\# ?//i;
 224
 225                                 # Check if it does not exists (which means it is disabled), append a #
 226                                 if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
 227                                         $line = "# $line";
 228                                 }
 229                         }
 230
 231                         # Check for rule state
 232                         if ($line =~ /^\#/) {
 233                                 $snortrules{$rule}{"State"} = "Disabled";
 234                         } else {
 235                                 $snortrules{$rule}{"State"} = "Enabled";
 236                         }
 237
 238                         # Set rule description
 239                         $snortrules{$rule}{"Description"} = $snortruledesc;
 240
 241                         # Loop over sorted rules
 242                         foreach my $ruledef (sort {$a <=> $b} keys(%snortruledef)) {
 243                                 $snortrules{$rule}{"Definition"}{$ruledef}{'Description'} = $snortruledef{$ruledef}{'Description'};
 244                                 $snortrules{$rule}{"Definition"}{$ruledef}{'State'} = $snortruledef{$ruledef}{'State'};
 245                         }
 246
 247                         $snortruledesc = '';
 248                         print FILE "$line\n";
 249                 } elsif ($line =~ /var RULE_PATH/) {
 250                         ($tmp, $tmp, $snortrulepath) = split(' ', $line);
 251                         print FILE "$line\n";
 252                 } else {
 253                         print FILE "$line\n";
 254                 }
 255         }
 256         close(FILE);
 257
 258         if ($restartsnortrequired) {
 259                 system('/usr/local/bin/snortctrl restart >/dev/null');
 260         }
 261 }
 262
 263 #######################  End added for snort rules control  #################################
 264
 265 if ($snortsettings{'RULES'} eq 'subscripted') {
 266         $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.6_s.tar.gz";
 267 } elsif ($snortsettings{'RULES'} eq 'registered') {
 268         $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.6.tar.gz";
 269 } else {
 270         $url="http://www.snort.org/pub-bin/downloads.cgi/Download/comm_rules/Community-Rules-CURRENT.tar.gz";
 271 }
 272
 273 if ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "snort" )
 274 {
 275         $errormessage = $Lang::tr{'invalid input for oink code'} unless (
 276             ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/)  ||
 277             ($snortsettings{'RULESTYPE'} eq 'nothing' )       );
 278
 279         &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
 280         if ($snortsettings{'ENABLE_SNORT'} eq 'on')
 281         {
 282                 system ('/usr/bin/touch', "${General::swroot}/snort/enable");
 283         } else {
 284                 unlink "${General::swroot}/snort/enable";
 285         }
 286         if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
 287         {
 288                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
 289         } else {
 290                 unlink "${General::swroot}/snort/enable_green";
 291         }
 292         if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
 293         {
 294                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
 295         } else {
 296                 unlink "${General::swroot}/snort/enable_blue";
 297         }
 298         if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
 299         {
 300                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
 301         } else {
 302                 unlink "${General::swroot}/snort/enable_orange";
 303         }
 304         if ($snortsettings{'ENABLE_GUARDIAN'} eq 'on')
 305         {
 306                 system ('/usr/bin/touch', "${General::swroot}/guardian/enable");
 307         } else {
 308                 unlink "${General::swroot}/guardian/enable";
 309         }
 310
 311                 system('/usr/local/bin/snortctrl restart >/dev/null');
 312
 313 } elsif ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "guardian" ){
 314                         open(IGNOREFILE, ">$snortsettings{'GUARDIAN_IGNOREFILE'}") or die "Unable to write guardian ignore file $snortsettings{'GUARDIAN_IGNOREFILE'}";
 315                                 print IGNOREFILE $snortsettings{'GUARDIAN_IGNOREFILE_CONTENT'};
 316                         close(IGNOREFILE);
 317                         open(GUARDIAN, ">/var/ipfire/guardian/guardian.conf") or die "Unable to write guardian conf /var/ipfire/guardian/guardian.conf";
 318                                 print GUARDIAN <<END
 319 Interface   $snortsettings{'GUARDIAN_INTERFACE'}
 320 HostGatewayByte   $snortsettings{'GUARDIAN_HOSTGATEWAYBYTE'}
 321 LogFile   $snortsettings{'GUARDIAN_LOGFILE'}
 322 AlertFile   $snortsettings{'GUARDIAN_ALERTFILE'}
 323 IgnoreFile   $snortsettings{'GUARDIAN_IGNOREFILE'}
 324 TargetFile   $snortsettings{'GUARDIAN_TARGETFILE'}
 325 TimeLimit   $snortsettings{'GUARDIAN_TIMELIMIT'}
 326 END
 327 ;
 328                         close(GUARDIAN);
 329                 system('/usr/local/bin/snortctrl restart >/dev/null');
 330 }
 331          # INSTALLMD5 is not in the form, so not retrieved by getcgihash
 332         &General::readhash("${General::swroot}/snort/settings", \%snortsettings);
 333
 334 if ($snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'}) {
 335         $md5 = &getmd5;
 336         if (($snortsettings{'INSTALLMD5'} ne $md5) && defined $md5 ) {
 337                 chomp($md5);
 338                 my $filename = &downloadrulesfile();
 339                 if (defined $filename) {
 340                         # Check MD5sum
 341                         $realmd5 = `/usr/bin/md5sum $filename`;
 342                         chomp ($realmd5);
 343                         $realmd5 =~ s/^(\w+)\s.*$/$1/;
 344                         if ($md5 ne $realmd5) {
 345                                 $errormessage = "$Lang::tr{'invalid md5sum'}";
 346                         } else {
 347                                 $results = "<b>$Lang::tr{'installed updates'}</b>\n<pre>";
 348                                 $results .=`/usr/local/bin/oinkmaster.pl -s -u file://$filename -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules 2>&1`;
 349                                 $results .= "</pre>";
 350                         }
 351                         unlink ($filename);
 352                 }
 353         }
 354 }
 355
 356 $checked{'ENABLE_SNORT'}{'off'} = '';
 357 $checked{'ENABLE_SNORT'}{'on'} = '';
 358 $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
 359 $checked{'ENABLE_SNORT_GREEN'}{'off'} = '';
 360 $checked{'ENABLE_SNORT_GREEN'}{'on'} = '';
 361 $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'";
 362 $checked{'ENABLE_SNORT_BLUE'}{'off'} = '';
 363 $checked{'ENABLE_SNORT_BLUE'}{'on'} = '';
 364 $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'";
 365 $checked{'ENABLE_SNORT_ORANGE'}{'off'} = '';
 366 $checked{'ENABLE_SNORT_ORANGE'}{'on'} = '';
 367 $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'";
 368 $checked{'ENABLE_GUARDIAN'}{'off'} = '';
 369 $checked{'ENABLE_GUARDIAN'}{'on'} = '';
 370 $checked{'ENABLE_GUARDIAN'}{$snortsettings{'ENABLE_GUARDIAN'}} = "checked='checked'";
 371 $selected{'RULES'}{'nothing'} = '';
 372 $selected{'RULES'}{'community'} = '';
 373 $selected{'RULES'}{'registered'} = '';
 374 $selected{'RULES'}{'subscripted'} = '';
 375 $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'";
 376
 377 &Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
 378
 379 ####################### Added for snort rules control #################################
 380 print "<SCRIPT LANGUAGE='JavaScript' SRC='/include/snortupdateutility.js'></SCRIPT>";
 381 print <<END
 382 <STYLE TYPE="text/css">
 383 <!--
 384 .section {
 385         border: groove;
 386 }
 387 .row1color {
 388         border: ridge;
 389         background-color: $color{'color22'};
 390 }
 391 .row2color {
 392         border: ridge;
 393         background-color: $color{'color20'};
 394 }
 395 .rowselected {
 396         border: double #FF0000;
 397         background-color: #DCDCDC;
 398 }
 399 -->
 400 </STYLE>
 401 END
 402 ;
 403 #######################  End added for snort rules control  #################################
 404
 405 &Header::openbigbox('100%', 'left', '', $errormessage);
 406
 407 if ($errormessage) {
 408         &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
 409         print "<class name='base'>$errormessage\n";
 410         print "&nbsp;</class>\n";
 411         &Header::closebox();
 412 }
 413
 414 &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system2'});
 415 print <<END
 416 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
 417 <tr><td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />GREEN Snort
 418 END
 419 ;
 420 if ($netsettings{'BLUE_DEV'} ne '') {
 421   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} />   BLUE Snort";
 422 }
 423 if ($netsettings{'ORANGE_DEV'} ne '') {
 424   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} />   ORANGE Snort";
 425 }
 426   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} />   RED Snort";
 427 if ( -e "/var/ipfire/guardian/guardian.conf" ) {
 428   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_GUARDIAN' $checked{'ENABLE_GUARDIAN'}{'on'} />  Guardian";
 429 }
 430
 431 print <<END
 432 </td></tr>
 433 <tr>
 434         <td><hr /></td>
 435 </tr>
 436 <tr>
 437         <td><b>$Lang::tr{'ids rules update'}</b></td>
 438 </tr>
 439 <tr>
 440         <td><select name='RULES'>
 441                                 <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
 442                                 <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
 443                                 <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
 444                                 <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
 445                         </select>
 446         </td>
 447 </tr>
 448 <tr>
 449         <td><br />
 450                 $Lang::tr{'ids rules license'} <a href='http://www.snort.org/' target='_blank'>http://www.snort.org</a>.<br />
 451                 <br />
 452                 $Lang::tr{'ids rules license2'} <a href='http://www.snort.org/reg-bin/userprefs.cgi' target='_blank'>USER PREFERENCES</a>, $Lang::tr{'ids rules license3'}<br />
 453         </td>
 454 </tr>
 455 <tr>
 456         <td nowrap='nowrap'>Oinkcode:&nbsp;<input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
 457 </tr>
 458 <tr>
 459         <td width='30%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
 460 END
 461 ;
 462
 463 if ($snortsettings{'INSTALLMD5'} eq $md5) {
 464         print "&nbsp;$Lang::tr{'rules already up to date'}</td>";
 465 } else {
 466         if ( $snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'} && $md5 eq $realmd5 ) {
 467                 $snortsettings{'INSTALLMD5'} = $realmd5;
 468                 $snortsettings{'INSTALLDATE'} = `/bin/date +'%Y-%m-%d'`;
 469                 &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
 470         }
 471         print "&nbsp;$Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>";
 472 }
 473 print <<END
 474 </tr>
 475 </table>
 476 <hr />
 477 <table width='100%'>
 478 <tr>
 479         <td align='center'><input type='hidden' name='ACTION2' value='snort' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
 480 </tr>
 481 </table>
 482 </form>
 483 END
 484 ;
 485
 486 if ($results ne '') {
 487         print "$results";
 488 }
 489
 490 &Header::closebox();
 491
 492 ####################### Added for guardian control ####################################
 493 if ( -e "/var/ipfire/guardian/guardian.conf" ) {
 494         &Header::openbox('100%', 'LEFT', $Lang::tr{'guardian configuration'});
 495 print <<END
 496 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
 497 <tr><td align='left' width='40%'>$Lang::tr{'guardian interface'}</td><td align='left'><input type='text' name='INTERFACE' value='$snortsettings{'GUARDIAN_INTERFACE'}' size="30" /></td></tr>
 498 <tr><td align='left' width='40%'>$Lang::tr{'guardian timelimit'}</td><td align='left'><input type='text' name='TIMELIMIT' value='$snortsettings{'GUARDIAN_TIMELIMIT'}' size="30" /></td></tr>
 499 <tr><td align='left' width='40%'>$Lang::tr{'guardian logfile'}</td><td align='left'><input type='text' name='LOGFILE' value='$snortsettings{'GUARDIAN_LOGFILE'}' size="30" /></td></tr>
 500 <tr><td align='left' width='40%'>$Lang::tr{'guardian alertfile'}</td><td align='left'><input type='text' name='ALERTFILE' value='$snortsettings{'GUARDIAN_ALERTFILE'}' size="30" /></td></tr>
 501 <tr><td align='left' width='40%'>$Lang::tr{'guardian ignorefile'}</td><td align='left'><textarea name='IGNOREFILE_CONTENT' cols='32' rows='6' wrap='off'></textarea></td></tr>
 502 <tr><td align='center' colspan='2'><input type='hidden' name='ACTION2' value='guardian' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td></tr>
 503 </table>
 504 </form>
 505 END
 506 ;
 507         &Header::closebox();
 508 }
 509
 510
 511
 512
 513 ####################### Added for snort rules control #################################
 514 if ( -e "${General::swroot}/snort/enable" || -e "${General::swroot}/snort/enable_green" || -e "${General::swroot}/snort/enable_blue" || -e "${General::swroot}/snort/enable_orange" ) {
 515         &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
 516                 # Output display table for rule files
 517                 print "<TABLE width='100%'><TR><TD VALIGN='TOP'><TABLE>";
 518
 519                 print "<form method='post'>";
 520
 521                 # Local vars
 522                 my $ruledisplaycnt = 1;
 523                 my $rulecnt = keys %snortrules;
 524                 $rulecnt++;
 525                 $rulecnt = $rulecnt / 2;
 526
 527                 # Loop over each rule file
 528                 foreach my $rulefile (sort keys(%snortrules)) {
 529                         my $rulechecked = '';
 530
 531                         # Check if reached half-way through rule file rules to start new column
 532                 if ($ruledisplaycnt > $rulecnt) {
 533                                 print "</TABLE></TD><TD VALIGN='TOP'><TABLE>";
 534                                 $ruledisplaycnt = 0;
 535                         }
 536
 537                         # Check if rule file is enabled
 538                         if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
 539                                 $rulechecked = 'CHECKED';
 540                         }
 541
 542                         # Create rule file link, vars array, and display flag
 543                         my $rulefilelink = "?RULEFILE=$rulefile";
 544                         my $rulefiletoclose = '';
 545                         my @queryvars = ();
 546                         my $displayrulefilerules = 0;
 547
 548                         # Check for passed in query string
 549                         if ($ENV{'QUERY_STRING'}) {
 550                                 # Split out vars
 551                                 @queryvars = split(/\&/, $ENV{'QUERY_STRING'});
 552
 553                                 # Loop over values
 554                                 foreach $value (@queryvars) {
 555                                         # Split out var pairs
 556                                         ($var, $linkedrulefile) = split(/=/, $value);
 557
 558                                         # Check if var is 'RULEFILE'
 559                                         if ($var eq 'RULEFILE') {
 560                                                 # Check if rulefile equals linkedrulefile
 561                                                 if ($rulefile eq $linkedrulefile) {
 562                                                         # Set display flag
 563                                                         $displayrulefilerules = 1;
 564
 565                                                         # Strip out rulefile from rulefilelink
 566                                                         $rulefilelink =~ s/RULEFILE=$linkedrulefile//g;
 567                                                 } else {
 568                                                         # Add linked rule file to rulefilelink
 569                                                         $rulefilelink .= "&RULEFILE=$linkedrulefile";
 570                                                 }
 571                                         }
 572                                 }
 573                         }
 574
 575                         # Strip out extra & & ? from rulefilelink
 576                         $rulefilelink =~ s/^\?\&/\?/i;
 577
 578                         # Check for a single '?' and replace with page for proper link display
 579                         if ($rulefilelink eq '?') {
 580                                 $rulefilelink = "ids.cgi";
 581                         }
 582
 583                         # Output rule file name and checkbox
 584                         print "<TR><TD CLASS='base' VALIGN='TOP'><INPUT TYPE='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <A HREF='$rulefilelink'>$rulefile</A></TD></TR>";
 585                         print "<TR><TD CLASS='base' VALIGN='TOP'>";
 586
 587                         # Check for empty 'Description'
 588                         if ($snortrules{$rulefile}{'Description'} eq '') {
 589                                 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>No description available</TD></TR>";
 590                         } else {
 591                                 # Output rule file 'Description'
 592                                 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>$snortrules{$rulefile}{'Description'}</TD></TR>";
 593                         }
 594
 595                         # Check for display flag
 596                         if ($displayrulefilerules) {
 597                                 # Rule file definition rule display
 598                                 print "<TR><TD CLASS='base' VALIGN='TOP'><TABLE border=1><TR>";
 599
 600                                 # Local vars
 601                                 my $ruledefdisplaycnt = 0;
 602                                 my $ruledefcnt = keys %{$snortrules{$rulefile}{"Definition"}};
 603                                 $ruledefcnt++;
 604                                 $ruledefcnt = $ruledefcnt / 2;
 605
 606                                 # Loop over rule file rules
 607                                 foreach my $ruledef (sort {$a <=> $b} keys(%{$snortrules{$rulefile}{"Definition"}})) {
 608                                         # Local vars
 609                                         my $ruledefchecked = '';
 610
 611                                         # If have display 2 rules, start new row
 612                                         if (($ruledefdisplaycnt % 2) == 0) {
 613                                                 print "</TR><TR>";
 614                                                 $ruledefdisplaycnt = 0;
 615                                         }
 616
 617                                         # Check for rules state
 618                                         if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
 619                                                 $ruledefchecked = 'CHECKED';
 620                                         }
 621
 622                                         # Create rule file rule's checkbox
 623                                         $checkboxname = "SNORT_RULE_$rulefile";
 624                                         $checkboxname .= "_$ruledef";
 625                                         print "<TD CLASS='base'><INPUT TYPE='checkbox' NAME='$checkboxname' $ruledefchecked> $snortrules{$rulefile}{'Definition'}{$ruledef}{'Description'}</TD>";
 626
 627                                         # Increment count
 628                                         $ruledefdisplaycnt++;
 629                                 }
 630
 631                                 # If do not have second rule for row, create empty cell
 632                                 if (($ruledefdisplaycnt % 2) != 0) {
 633                                         print "<TD CLASS='base'></TD>";
 634                                 }
 635
 636                                 # Close display table
 637                                 print "</TR></TABLE></TD></TR>";
 638                 }
 639
 640                         # Close display table
 641                         print "</TABLE>";
 642
 643                         # Increment ruledisplaycnt
 644                 $ruledisplaycnt++;
 645                 }
 646         print "</TD></TR></TABLE></TD></TR></TABLE>";
 647         print <<END
 648 <table width='100%'>
 649 <tr>
 650         <td width='33%'>&nbsp;</td>
 651         <td width='33%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
 652         <td width='33%'>
 653                 &nbsp; <!-- space for future online help link -->
 654         </td>
 655 </tr>
 656 </table>
 657 </form>
 658 END
 659 ;
 660         &Header::closebox();
 661 }
 662
 663 #######################  End added for snort rules control  #################################
 664 &Header::closebigbox();
 665 &Header::closepage();
 666
 667 sub getmd5 {
 668         # Retrieve MD5 sum from $url.md5 file
 669         #
 670         my $md5buf = &geturl("$url.md5");
 671         return undef unless $md5buf;
 672
 673         if (0) { # 1 to debug
 674                 my $filename='';
 675                 my $fh='';
 676                 ($fh, $filename) = tempfile('/tmp/XXXXXXXX',SUFFIX => '.md5' );
 677                 binmode ($fh);
 678                 syswrite ($fh, $md5buf->content);
 679                 close($fh);
 680         }
 681         return $md5buf->content;
 682 }
 683 sub downloadrulesfile {
 684         my $return = &geturl($url);
 685         return undef unless $return;
 686
 687         if (index($return->content, "\037\213") == -1 ) { # \037\213 is .gz beginning
 688                 $errormessage = $Lang::tr{'invalid loaded file'};
 689                 return undef;
 690         }
 691
 692         my $filename='';
 693         my $fh='';
 694         ($fh, $filename) = tempfile('/tmp/XXXXXXXX',SUFFIX => '.tar.gz' );#oinkmaster work only with this extension
 695         binmode ($fh);
 696         syswrite ($fh, $return->content);
 697         close($fh);
 698         return $filename;
 699 }
 700
 701 sub geturl ($) {
 702         my $url=$_[0];
 703
 704         unless (-e "${General::swroot}/red/active") {
 705                 $errormessage = $Lang::tr{'could not download latest updates'};
 706                 return undef;
 707         }
 708
 709         my $downloader = LWP::UserAgent->new;
 710         $downloader->timeout(5);
 711
 712         my %proxysettings=();
 713         &General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
 714
 715         if ($_=$proxysettings{'UPSTREAM_PROXY'}) {
 716                 my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/);
 717                 if ($proxysettings{'UPSTREAM_USER'}) {
 718                         $downloader->proxy("http","http://$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'}@"."$peer:$peerport/");
 719                 } else {
 720                         $downloader->proxy("http","http://$peer:$peerport/");
 721                 }
 722         }
 723
 724         my $return = $downloader->get($url,'Cache-Control','no-cache');
 725
 726         if ($return->code == 403) {
 727                 $errormessage = $Lang::tr{'access refused with this oinkcode'};
 728                 return undef;
 729         } elsif (!$return->is_success()) {
 730                 $errormessage = $Lang::tr{'could not download latest updates'};
 731                 return undef;
 732         }
 733
 734         return $return;
 735
 736 }