###############################################################################
# #
# IPFire.org - A linux based firewall #
-# Copyright (C) 2007-2013 IPFire Team <info@ipfire.org> #
+# Copyright (C) 2007-2015 IPFire Team <info@ipfire.org> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
require "${General::swroot}/lang.pl";
require "${General::swroot}/header.pl";
-sub refreshpage{&Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='1;'>" );print "<center><img src='/images/clock.gif' alt='' /><br/><font color='red'>$Lang::tr{'pagerefresh'}</font></center>";&Header::closebox();}
-
-$a = new CGI;
-
my %color = ();
my %mainsettings = ();
-&General::readhash("${General::swroot}/main/settings", \%mainsettings);
-&General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
-
+my %netsettings = ();
+my %snortrules = ();
my %snortsettings=();
+my %cgiparams=();
my %checked=();
my %selected=();
-my %netsettings=();
-our $errormessage = '';
-our $results = '';
-our $tempdir = '';
-our $url='';
+
+# Read-in main settings, for language, theme and colors.
+&General::readhash("${General::swroot}/main/settings", \%mainsettings);
+&General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
+
+# Get netsettings.
&General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
&Header::showhttpheaders();
+# Default settings for snort.
$snortsettings{'ENABLE_SNORT'} = 'off';
$snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
$snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
$snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
-$snortsettings{'ENABLE_GUARDIAN'} = 'off';
-$snortsettings{'GUARDIAN_INTERFACE'} = `cat /var/ipfire/red/iface`;
-$snortsettings{'GUARDIAN_HOSTGATEWAYBYTE'} = '1';
-$snortsettings{'GUARDIAN_LOGFILE'} = '/var/log/guardian/guardian.log';
-$snortsettings{'GUARDIAN_ALERTFILE'} = '/var/log/snort/alert';
-$snortsettings{'GUARDIAN_IGNOREFILE'} = '/var/ipfire/guardian/guardian.ignore';
-$snortsettings{'GUARDIAN_TARGETFILE'} = '/var/ipfire/guardian/guardian.target';
-$snortsettings{'GUARDIAN_TIMELIMIT'} = '86400';
-$snortsettings{'ACTION'} = '';
-$snortsettings{'ACTION2'} = '';
$snortsettings{'RULES'} = '';
$snortsettings{'OINKCODE'} = '';
$snortsettings{'INSTALLDATE'} = '';
-$snortsettings{'FILE'} = '';
-$snortsettings{'UPLOAD'} = '';
-
-&Header::getcgihash(\%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'});
-
-####################### Added for snort rules control #################################
-my $snortrulepath; # change to "/etc/snort/rules" - maniac
-my @snortconfig;
-my $restartsnortrequired = 0;
-my %snortrules;
-my $rule = '';
-my $table1colour = '';
-my $table2colour = '';
-my $var = '';
-my $value = '';
-my $tmp = '';
-my $linkedrulefile = '';
-my $border = '';
-my $checkboxname = '';
-
-if (-e "/etc/snort/snort.conf") {
-
-
- # Open snort.conf file, read it in, close it, and re-open for writing
- open(FILE, "/etc/snort/snort.conf") or die 'Unable to read snort config file.';
- @snortconfig = <FILE>;
- close(FILE);
- open(FILE, ">/etc/snort/snort.conf") or die 'Unable to write snort config file.';
-
- my @rules = `cd /etc/snort/rules/ && ls *.rules 2>/dev/null`; # With this loop the rule might be display with correct rulepath set
- foreach (@rules) {
- chomp $_;
- my $temp = join(";",@snortconfig);
- if ( $temp =~ /$_/ ){next;}
- else { push(@snortconfig,"#include \$RULE_PATH/".$_);}
- }
-
- # Loop over each line
- foreach my $line (@snortconfig) {
- # Trim the line
- chomp $line;
- # Check for a line with .rules
- if ($line =~ /\.rules$/) {
- # Parse out rule file name
- $rule = $line;
- $rule =~ s/\$RULE_PATH\///i;
- $rule =~ s/ ?include ?//i;
- $rule =~ s/\#//i;
- my $snortrulepathrule = "$snortrulepath/$rule";
-
- # Open rule file and read in contents
- open(RULEFILE, "$snortrulepath/$rule") or die "Unable to read snort rule file for reading => $snortrulepath/$rule.";
- my @snortrulefile = <RULEFILE>;
- close(RULEFILE);
- open(RULEFILE, ">$snortrulepath/$rule") or die "Unable to write snort rule file for writing $snortrulepath/$rule";
+#Get GUI values
+&Header::getcgihash(\%cgiparams);
- # Local vars
- my $dashlinecnt = 0;
- my $desclook = 1;
- my $snortruledesc = '';
- my %snortruledef = ();
- my $rulecnt = 1;
-
- # Loop over rule file contents
- foreach my $ruleline (@snortrulefile) {
- chomp $ruleline;
-
- # If still looking for a description
- if ($desclook) {
- # If line does not start with a # anymore, then done looking for a description
- if ($ruleline !~ /^\#/) {
- $desclook = 0;
- }
+my $snortrulepath = "/etc/snort/rules";
+my $snortusedrulefilesfile = "${General::swroot}/snort/snort-used-rulefiles.conf";
+my $errormessage;
- # If see more than one dashed line, (start to) create rule file description
- if ($dashlinecnt > 1) {
- # Check for a line starting with a #
- if ($ruleline =~ /^\#/ and $ruleline !~ /^\#alert/) {
- # Create tempruleline
- my $tempruleline = $ruleline;
-
- # Strip off # and clean up line
- $tempruleline =~ s/\# ?//i;
-
- # Check for part of a description
- if ($snortruledesc eq '') {
- $snortruledesc = $tempruleline;
- } else {
- $snortruledesc .= " $tempruleline";
- }
- } else {
- # Must be done
- $desclook = 0;
- }
- }
+# Try to determine if oinkmaster is running.
+my $oinkmaster_pid = `pidof oinkmaster.pl -x`;
- # If have a dashed line, increment count
- if ($ruleline =~ /\# ?\-+/) {
- $dashlinecnt++;
- }
- } else {
- # Parse out rule file rule's message for display
- if ($ruleline =~ /(msg\:\"[^\"]+\";)/) {
- my $msg = '';
- $msg = $1;
- $msg =~ s/msg\:\"//i;
- $msg =~ s/\";//i;
- $snortruledef{$rulecnt}{'Description'} = $msg;
-
- # Check for 'Save' and rule file displayed in query string
- if (($snortsettings{'ACTION'} eq $Lang::tr{'update'}) && ($ENV{'QUERY_STRING'} =~ /$rule/i)) {
- # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
- if ((($ruleline =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"})) || (($ruleline !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}))) {
- $restartsnortrequired = 1;
- }
-
- # Strip out leading # from rule line
- $ruleline =~ s/\# ?//i;
-
- # Check if it does not exists (which means it is disabled), append a #
- if (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}) {
- $ruleline = "#"." $ruleline";
- }
- }
-
- # Check if ruleline does not begin with a #, so it is enabled
- if ($ruleline !~ /^\#/) {
- $snortruledef{$rulecnt++}{'State'} = 'Enabled';
- } else {
- # Otherwise it is disabled
- $snortruledef{$rulecnt++}{'State'} = 'Disabled';
- }
- }
- }
+# If oinkmaster is running display output.
+if ($oinkmaster_pid) {
+ &working("$Lang::tr{'snort working'}");
+}
- # Print ruleline to RULEFILE
- print RULEFILE "$ruleline\n";
- }
+## Grab all available snort rules and store them in the snortrules hash.
+#
+# Open snort rules directory and do a directory listing.
+opendir(DIR, $snortrulepath) or die $!;
+ # Loop through the direcory.
+ while (my $file = readdir(DIR)) {
- # Close RULEFILE
- close(RULEFILE);
+ # We only want files.
+ next unless (-f "$snortrulepath/$file");
- # Check for 'Save'
- if ($snortsettings{'ACTION'} eq $Lang::tr{'update'}) {
- # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
- if ((($line =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule"})) || (($line !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule"}))) {
- $restartsnortrequired = 1;
- }
+ # Ignore empty files.
+ next if (-z "$snortrulepath/$file");
- # Strip out leading # from rule line
- $line =~ s/\# ?//i;
+ # Use a regular expression to find files ending in .rules
+ next unless ($file =~ m/\.rules$/);
- # Check if it does not exists (which means it is disabled), append a #
- if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
- $line = "# $line";
- }
+ # Ignore files which are not read-able.
+ next unless (-R "$snortrulepath/$file");
- }
+ # Call subfunction to read-in rulefile and add rules to
+ # the snortrules hash.
+ &readrulesfile("$file");
+ }
- # Check for rule state
- if ($line =~ /^\#/) {
- $snortrules{$rule}{"State"} = "Disabled";
- } else {
- $snortrules{$rule}{"State"} = "Enabled";
- }
+closedir(DIR);
- # Set rule description
- $snortrules{$rule}{"Description"} = $snortruledesc;
+# Gather used rulefiles.
+#
+# Check if the file for activated rulefiles is not empty.
+if(-f $snortusedrulefilesfile) {
+ # Open the file for used rulefile and read-in content.
+ open(FILE, $snortusedrulefilesfile) or die "Could not open $snortusedrulefilesfile. $!\n";
- # Loop over sorted rules
- foreach my $ruledef (sort {$a <=> $b} keys(%snortruledef)) {
- $snortrules{$rule}{"Definition"}{$ruledef}{'Description'} = $snortruledef{$ruledef}{'Description'};
- $snortrules{$rule}{"Definition"}{$ruledef}{'State'} = $snortruledef{$ruledef}{'State'};
- }
+ # Read-in content.
+ my @lines = <FILE>;
- $snortruledesc = '';
- print FILE "$line\n";
- } elsif ($line =~ /var RULE_PATH/) {
- ($tmp, $tmp, $snortrulepath) = split(' ', $line);
- print FILE "$line\n";
- } else {
- print FILE "$line\n";
- }
- }
+ # Close file.
close(FILE);
- if ($restartsnortrequired) {
- system('/usr/local/bin/snortctrl restart >/dev/null');
- }
-}
+ # Loop through the array.
+ foreach my $line (@lines) {
+ # Remove newlines.
+ chomp($line);
-####################### End added for snort rules control #################################
+ # Skip comments.
+ next if ($line =~ /\#/);
-if ($snortsettings{'RULES'} eq 'subscripted') {
- $url=" https://www.snort.org/rules/snortrules-snapshot-2970.tar.gz?oinkcode=$snortsettings{'OINKCODE'}";
-} elsif ($snortsettings{'RULES'} eq 'registered') {
- $url=" https://www.snort.org/rules/snortrules-snapshot-2970.tar.gz?oinkcode=$snortsettings{'OINKCODE'}";
-} elsif ($snortsettings{'RULES'} eq 'community') {
- $url=" https://www.snort.org/rules/community";
-} else {
- $url="http://rules.emergingthreats.net/open/snort-2.9.0/emerging.rules.tar.gz";
-}
+ # Skip blank lines.
+ next if ($line =~ /^\s*$/);
-if ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "snort" )
-{
- $errormessage = $Lang::tr{'invalid input for oink code'} unless (
- ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/) ||
- ($snortsettings{'RULES'} eq 'nothing' ) ||
- ($snortsettings{'RULES'} eq 'emerging' ) ||
- ($snortsettings{'RULES'} eq 'community' ));
-
- &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
- if ($snortsettings{'ENABLE_SNORT'} eq 'on')
- {
- system ('/usr/bin/touch', "${General::swroot}/snort/enable");
- } else {
- unlink "${General::swroot}/snort/enable";
+ # Gather rule sid and message from the ruleline.
+ if ($line =~ /.*include \$RULE_PATH\/(.*)/) {
+ my $rulefile = $1;
+
+ # Add the rulefile to the %snortrules hash.
+ $snortrules{$rulefile}{'Rulefile'}{'State'} = "on";
+ }
}
- if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
- {
- system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
- } else {
- unlink "${General::swroot}/snort/enable_green";
+}
+
+# Save ruleset.
+if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
+ my $enabled_sids_file = "${General::swroot}/snort/oinkmaster-enabled-sids.conf";
+ my $disabled_sids_file = "${General::swroot}/snort/oinkmaster-disabled-sids.conf";
+
+ # Arrays to store sid which should be added to the corresponding files.
+ my @enabled_sids;
+ my @disabled_sids;
+ my @enabled_rulefiles;
+
+ # Loop through the hash of snortrules.
+ foreach my $rulefile(keys %snortrules) {
+ # Check if the rulefile is enabled.
+ if ($cgiparams{$rulefile} eq "on") {
+ # Add rulefile to the array of enabled rulefiles.
+ push(@enabled_rulefiles, $rulefile);
+
+ # Drop item from cgiparams hash.
+ delete $cgiparams{$rulefile};
+ }
}
- if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
- {
- system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
- } else {
- unlink "${General::swroot}/snort/enable_blue";
+
+ # Loop through the hash of snortrules.
+ foreach my $rulefile (keys %snortrules) {
+ # Loop through the single rules of the rulefile.
+ foreach my $sid (keys %{$snortrules{$rulefile}}) {
+ # Skip the current sid if it is not numeric.
+ next unless ($sid =~ /\d+/ );
+
+ # Check if there exists a key in the cgiparams hash for this sid.
+ if (exists($cgiparams{$sid})) {
+ # Look if the rule is disabled.
+ if ($snortrules{$rulefile}{$sid}{'State'} eq "off") {
+ # Check if the state has been set to 'on'.
+ if ($cgiparams{$sid} eq "on") {
+ # Add the sid to the enabled_sids array.
+ push(@enabled_sids, $sid);
+
+ # Drop item from cgiparams hash.
+ delete $cgiparams{$rulefile}{$sid};
+ }
+ }
+ } else {
+ # Look if the rule is enabled.
+ if ($snortrules{$rulefile}{$sid}{'State'} eq "on") {
+ # Check if the state is 'on' and should be disabled.
+ # In this case there is no entry
+ # for the sid in the cgiparams hash.
+ # Add it to the disabled_sids array.
+ push(@disabled_sids, $sid);
+
+ # Drop item from cgiparams hash.
+ delete $cgiparams{$rulefile}{$sid};
+ }
+ }
+ }
}
- if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
- {
- system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
- } else {
- unlink "${General::swroot}/snort/enable_orange";
+
+ # Open enabled sid's file for writing.
+ open(FILE, ">$enabled_sids_file") or die "Could not write to $enabled_sids_file. $!\n";
+
+ # Write header to file.
+ print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+
+ # Check if the enabled_sids array contains any sid's.
+ if (@enabled_sids) {
+ # Loop through the array of enabled sids and write them to the file.
+ foreach my $sid (@enabled_sids) {
+ print FILE "enablesid $sid\n";
+ }
}
- if ($snortsettings{'ENABLE_PREPROCESSOR_HTTP_INSPECT'} eq 'on')
- {
- system ('/usr/bin/touch', "${General::swroot}/snort/enable_preprocessor_http_inspect");
- } else {
- unlink "${General::swroot}/snort/enable_preprocessor_http_inspect";
+
+ # Close file after writing.
+ close(FILE);
+
+ # Open disabled sid's file for writing.
+ open(FILE, ">$disabled_sids_file") or die "Could not write to $disabled_sids_file. $!\n";
+
+ # Write header to file.
+ print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+
+ # Check if the enabled_sids array contains any sid's.
+ if (@disabled_sids) {
+ # Loop through the array of disabled sids and write them to the file.
+ foreach my $sid (@disabled_sids) {
+ print FILE "disablesid $sid\n";
+ }
}
- if ($snortsettings{'ENABLE_GUARDIAN'} eq 'on')
- {
- system ('/usr/bin/touch', "${General::swroot}/guardian/enable");
- } else {
- unlink "${General::swroot}/guardian/enable";
+
+ # Close file after writing.
+ close(FILE);
+
+ # Open file for used rulefiles.
+ open (FILE, ">$snortusedrulefilesfile") or die "Could not write to $snortusedrulefilesfile. $!\n";
+
+ # Write header to file.
+ print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+
+ # Check if the enabled_rulefiles array contains any entries.
+ if (@enabled_rulefiles) {
+ # Loop through the array of rulefiles which should be loaded and write the to the file.
+ foreach my $file (@enabled_rulefiles) {
+ print FILE "include \$RULE_PATH/$file\n";
+ }
}
- system('/usr/local/bin/snortctrl restart >/dev/null');
+ # Close file after writing.
+ close(FILE);
-} elsif ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "guardian" ){
- foreach my $key (keys %snortsettings){
- if ( $key !~ /^GUARDIAN/ ){
- delete $snortsettings{$key};
- }
- }
- &General::writehashpart("${General::swroot}/snort/settings", \%snortsettings);
- open(IGNOREFILE, ">$snortsettings{'GUARDIAN_IGNOREFILE'}") or die "Unable to write guardian ignore file $snortsettings{'GUARDIAN_IGNOREFILE'}";
- print IGNOREFILE $snortsettings{'GUARDIAN_IGNOREFILE_CONTENT'};
- close(IGNOREFILE);
- open(GUARDIAN, ">/var/ipfire/guardian/guardian.conf") or die "Unable to write guardian conf /var/ipfire/guardian/guardian.conf";
- print GUARDIAN <<END
-Interface $snortsettings{'GUARDIAN_INTERFACE'}
-HostGatewayByte $snortsettings{'GUARDIAN_HOSTGATEWAYBYTE'}
-LogFile $snortsettings{'GUARDIAN_LOGFILE'}
-AlertFile $snortsettings{'GUARDIAN_ALERTFILE'}
-IgnoreFile $snortsettings{'GUARDIAN_IGNOREFILE'}
-TargetFile $snortsettings{'GUARDIAN_TARGETFILE'}
-TimeLimit $snortsettings{'GUARDIAN_TIMELIMIT'}
-END
-;
- close(GUARDIAN);
- system('/usr/local/bin/snortctrl restart >/dev/null');
-}
- # INSTALLMD5 is not in the form, so not retrieved by getcgihash
- &General::readhash("${General::swroot}/snort/settings", \%snortsettings);
+ # Call oinkmaster to alter the ruleset.
+ &oinkmaster();
-if ($snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'} || $snortsettings{'ACTION'} eq $Lang::tr{'upload new ruleset'}) {
+# Download new ruleset.
+} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'download new ruleset'}) {
+ # Local var.
+ my $return;
+ # Call diskfree to gather the free disk space of /var.
my @df = `/bin/df -B M /var`;
+
+ # Loop through the output.
foreach my $line (@df) {
+ # Ignore header line.
next if $line =~ m/^Filesystem/;
- my $return;
+ # Search for a line with the device information.
if ($line =~ m/dev/ ) {
- $line =~ m/^.* (\d+)M.*$/;
- my @temp = split(/ +/,$line);
- if ($1<300) {
+ # Split the line into single pieces.
+ my @values = split(' ', $line);
+ my ($filesystem, $blocks, $used, $available, $used_perenctage, $mounted_on) = @values;
+
+ # Check if the available disk space is more than 300MB.
+ if ($available < 300) {
+ # If there is not enough space, print out an error message.
$errormessage = "$Lang::tr{'not enough disk space'} < 300MB, /var $1MB";
} else {
+ # Call subfunction to download the ruleset.
+ &downloadrulesfile();
- if ( $snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'} ){
+ # Sleep for 3 seconds.
+ sleep(3);
- &downloadrulesfile();
- sleep(3);
- $return = `cat /var/tmp/log 2>/dev/null`;
+ # Gather return of the external wget.
+ $return = `cat /var/tmp/log 2>/dev/null`;
+ }
- } elsif ( $snortsettings{'ACTION'} eq $Lang::tr{'upload new ruleset'} ) {
- my $upload = $a->param("UPLOAD");
- open UPLOADFILE, ">/var/tmp/snortrules.tar.gz";
- binmode $upload;
- while ( <$upload> ) {
- print UPLOADFILE;
- }
- close UPLOADFILE;
- }
+ # Check if there was an error.
+ if ($return =~ "ERROR") {
+ # Store error message for display.
+ $errormessage = "<br /><pre>".$return."</pre>";
+ } else {
+ # Remove logfile.
+ unlink("/var/tmp/log");
- if ($return =~ "ERROR"){
- $errormessage = "<br /><pre>".$return."</pre>";
- } else {
- system("/usr/local/bin/oinkmaster.pl -v -s -u file:///var/tmp/snortrules.tar.gz -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules >>/var/tmp/log 2>&1 &");
- sleep(2);
- }
+ # Call subfunction to launch oinkmaster.
+ &oinkmaster();
+
+ # Sleep for 2 seconds.
+ sleep(2);
}
}
}
+# Save snort settings.
+} elsif ($cgiparams{'SNORT'} eq $Lang::tr{'save'}) {
+ # Prevent form name from been stored in conf file.
+ delete $cgiparams{'SNORT'};
+
+ # Check if an oinkcode has been provided.
+ if ($cgiparams{'OINKCODE'}) {
+ # Check if the oinkcode contains unallowed chars.
+ unless ($cgiparams{'OINKCODE'} =~ /^[a-z0-9]+$/) {
+ $errormessage = $Lang::tr{'invalid input for oink code'};
+ }
+ }
+
+ # Go on if there are no error messages.
+ if (!$errormessage) {
+ # Store settings into settings file.
+ &General::writehash("${General::swroot}/snort/settings", \%cgiparams);
+
+ # Create/Remove control files for snort.
+ if ($snortsettings{'ENABLE_SNORT'} eq 'on') {
+ system ('/usr/bin/touch', "${General::swroot}/snort/enable");
+ } else {
+ unlink "${General::swroot}/snort/enable";
+ }
+
+ if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on') {
+ system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
+ } else {
+ unlink "${General::swroot}/snort/enable_green";
+ }
+
+ if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on') {
+ system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
+ } else {
+ unlink "${General::swroot}/snort/enable_blue";
+ }
+
+ if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on') {
+ system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
+ } else {
+ unlink "${General::swroot}/snort/enable_orange";
+ }
+
+ if ($snortsettings{'ENABLE_PREPROCESSOR_HTTP_INSPECT'} eq 'on') {
+ system ('/usr/bin/touch', "${General::swroot}/snort/enable_preprocessor_http_inspect");
+ } else {
+ unlink "${General::swroot}/snort/enable_preprocessor_http_inspect";
+ }
+
+ # Call snortctrl to restart snort
+ system('/usr/local/bin/snortctrl restart >/dev/null');
+ }
}
+# Read-in snortsettings
+&General::readhash("${General::swroot}/snort/settings", \%snortsettings);
+
$checked{'ENABLE_SNORT'}{'off'} = '';
$checked{'ENABLE_SNORT'}{'on'} = '';
$checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
$checked{'ENABLE_SNORT_ORANGE'}{'off'} = '';
$checked{'ENABLE_SNORT_ORANGE'}{'on'} = '';
$checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'";
-$checked{'ENABLE_GUARDIAN'}{'off'} = '';
-$checked{'ENABLE_GUARDIAN'}{'on'} = '';
-$checked{'ENABLE_GUARDIAN'}{$snortsettings{'ENABLE_GUARDIAN'}} = "checked='checked'";
$selected{'RULES'}{'nothing'} = '';
$selected{'RULES'}{'community'} = '';
$selected{'RULES'}{'emerging'} = '';
&Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
-####################### Added for snort rules control #################################
-print "<script type='text/javascript' src='/include/snortupdateutility.js'></script>";
+### Java Script ###
print <<END
-<style type="text/css">
-<!--
-.section {
- border: groove;
-}
-.row1color {
- border: ridge;
- background-color: $color{'color22'};
-}
-.row2color {
- border: ridge;
- background-color: $color{'color20'};
-}
-.rowselected {
- border: double #FF0000;
- background-color: #DCDCDC;
-}
--->
-</style>
+<script>
+ // Tiny java script function to show/hide the rules
+ // of a given category.
+ function showhide(tblname) {
+ \$("#" + tblname).toggle();
+ }
+</script>
END
;
-####################### End added for snort rules control #################################
&Header::openbigbox('100%', 'left', '', $errormessage);
-###############
-# DEBUG DEBUG
-# &Header::openbox('100%', 'left', 'DEBUG');
-# my $debugCount = 0;
-# foreach my $line (sort keys %snortsettings) {
-# print "$line = $snortsettings{$line}<br />\n";
-# $debugCount++;
-# }
-# print " Count: $debugCount\n";
-# &Header::closebox();
-# DEBUG DEBUG
-###############
-
if ($errormessage) {
&Header::openbox('100%', 'left', $Lang::tr{'error messages'});
print "<class name='base'>$errormessage\n";
&Header::closebox();
}
-my $return = `pidof oinkmaster.pl -x`;
-chomp($return);
-if ($return) {
- &Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='10;'>" );
- print <<END;
- <table>
- <tr><td>
- <img src='/images/indicator.gif' alt='$Lang::tr{'aktiv'}' />
- <td>
- $Lang::tr{'snort working'}
- <tr><td colspan='2' align='center'>
- <form method='post' action='$ENV{'SCRIPT_NAME'}'>
- <input type='image' alt='$Lang::tr{'reload'}' title='$Lang::tr{'reload'}' src='/images/view-refresh.png' />
- </form>
- <tr><td colspan='2' align='left'><pre>
-END
- my @output = `tail -20 /var/tmp/log`;
- foreach (@output) {
- print "$_";
- }
- print <<END;
- </pre>
- </table>
-END
- &Header::closebox();
- &Header::closebigbox();
- &Header::closepage();
- exit;
- refreshpage();
-}
-
&Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system'});
print <<END
<form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
print " <input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} /> ORANGE Snort";
}
print " <input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} /> RED Snort";
-if ( -e "/var/ipfire/guardian/guardian.conf" ) {
- print " <input type='checkbox' name='ENABLE_GUARDIAN' $checked{'ENABLE_GUARDIAN'}{'on'} /> Guardian";
-}
print <<END
</td></tr>
<td nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
</tr>
<tr>
- <td width='30%' align='left'><br><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
+ <td width='30%' align='left'><br><input type='submit' name='RULESET' value='$Lang::tr{'download new ruleset'}' />
END
;
if ( -e "/var/tmp/snortrules.tar.gz"){
<br><br>
<table width='100%'>
<tr>
- <td align='right'><input type='hidden' name='ACTION2' value='snort' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
+ <td align='right'><input type='submit' name='SNORT' value='$Lang::tr{'save'}' /></td>
</tr>
</table>
</form>
END
;
-if ($results ne '') {
- print "$results";
-}
-
&Header::closebox();
-####################### Added for guardian control ####################################
-if ( -e "/var/ipfire/guardian/guardian.conf" ) {
- &Header::openbox('100%', 'LEFT', $Lang::tr{'guardian configuration'});
-print <<END
-<form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
-<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>
-<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>
-<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>
-<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>
-<tr><td align='left' width='40%'>$Lang::tr{'guardian ignorefile'}</td><td align='left'><textarea name='GUARDIAN_IGNOREFILE_CONTENT' cols='32' rows='6' wrap='off'>
-END
-;
- print `cat /var/ipfire/guardian/guardian.ignore`;
-print <<END
-</textarea></td></tr>
-<tr><td align='right' colspan='2'><input type='hidden' name='ACTION2' value='guardian' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td></tr>
-</table>
-</form>
-END
-;
- &Header::closebox();
-}
+&Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
+ print"<form method='POST' action='$ENV{'SCRIPT_NAME'}'>\n";
+ # Output display table for rule files
+ print "<table width='100%'>\n";
+ # Local variable required for java script to show/hide
+ # rules of a rulefile.
+ my $rulesetcount = 1;
+ # Loop over each rule file
+ foreach my $rulefile (sort keys(%snortrules)) {
+ my $rulechecked = '';
-####################### Added for snort rules control #################################
-if ( -e "${General::swroot}/snort/enable" || -e "${General::swroot}/snort/enable_green" || -e "${General::swroot}/snort/enable_blue" || -e "${General::swroot}/snort/enable_orange" ) {
- &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
- # Output display table for rule files
- print "<table width='100%'><tr><td valign='top'><table>";
+ # Check if rule file is enabled
+ if ($snortrules{$rulefile}{'Rulefile'}{'State'} eq 'on') {
+ $rulechecked = 'CHECKED';
+ }
- print "<form method='post'>";
+ # Table and rows for the rule files.
+ print"<tr>\n";
+ print"<td class='base' width='5%'>\n";
+ print"<input type='checkbox' name='$rulefile' $rulechecked>\n";
+ print"</td>\n";
+ print"<td class='base' width='90%'><b>$rulefile</b></td>\n";
+ print"<td class='base' width='5%' align='right'>\n";
+ print"<a href=\"javascript:showhide('ruleset$rulesetcount')\">SHOW</a>\n";
+ print"</td>\n";
+ print"</tr>\n";
+
+ # Rows which will be hidden per default and will contain the single rules.
+ print"<tr style='display:none' id='ruleset$rulesetcount'>\n";
+ print"<td colspan='3'>\n";
# Local vars
- my $ruledisplaycnt = 1;
- my $rulecnt = keys %snortrules;
- $rulecnt++;
- $rulecnt = $rulecnt / 2;
-
- # Loop over each rule file
- foreach my $rulefile (sort keys(%snortrules)) {
- my $rulechecked = '';
-
- # Hide inkompatible Block rules
- if ($rulefile =~'-BLOCK.rules') {
- next;
- }
+ my $lines;
+ my $rows;
+ my $col;
- # Check if reached half-way through rule file rules to start new column
- if ($ruledisplaycnt > $rulecnt) {
- print "</table></td><td valign='top'><table>";
- $ruledisplaycnt = 0;
- }
+ # New table for the single rules.
+ print "<table width='100%'>\n";
- # Check if rule file is enabled
- if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
- $rulechecked = 'CHECKED';
- }
+ # Loop over rule file rules
+ foreach my $sid (sort {$a <=> $b} keys(%{$snortrules{$rulefile}})) {
+ # Local vars
+ my $ruledefchecked = '';
- # Create rule file link, vars array, and display flag
- my $rulefilelink = "?RULEFILE=$rulefile";
- my $rulefiletoclose = '';
- my @queryvars = ();
- my $displayrulefilerules = 0;
-
- # Check for passed in query string
- if ($ENV{'QUERY_STRING'}) {
- # Split out vars
- @queryvars = split(/\&/, $ENV{'QUERY_STRING'});
-
- # Loop over values
- foreach $value (@queryvars) {
- # Split out var pairs
- ($var, $linkedrulefile) = split(/=/, $value);
-
- # Check if var is 'RULEFILE'
- if ($var eq 'RULEFILE') {
- # Check if rulefile equals linkedrulefile
- if ($rulefile eq $linkedrulefile) {
- # Set display flag
- $displayrulefilerules = 1;
-
- # Strip out rulefile from rulefilelink
- $rulefilelink =~ s/RULEFILE=$linkedrulefile//g;
- } else {
- # Add linked rule file to rulefilelink
- $rulefilelink .= "&RULEFILE=$linkedrulefile";
- }
- }
- }
- }
+ # Skip rulefile itself.
+ next if ($sid eq "Rulefile");
- # Strip out extra & & ? from rulefilelink
- $rulefilelink =~ s/^\?\&/\?/i;
+ # If 2 rules have been displayed, start a new row
+ if (($lines % 2) == 0) {
+ print "</tr><tr>\n";
- # Check for a single '?' and replace with page for proper link display
- if ($rulefilelink eq '?') {
- $rulefilelink = "ids.cgi";
+ # Increase rows by once.
+ $rows++;
}
- # Output rule file name and checkbox
- print "<tr><td class='base' valign='top'><input type='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <a href='$rulefilelink'>$rulefile</a></td></tr>";
- print "<tr><td class='base' valign='top'>";
-
- # Check for empty 'Description'
- if ($snortrules{$rulefile}{'Description'} eq '') {
- print "<table width='100%'><tr><td class='base'>No description available</td></tr>";
+ # Colour lines.
+ if ($rows % 2) {
+ $col="bgcolor='$color{'color20'}'";
} else {
- # Output rule file 'Description'
- print "<table width='100%'><tr><td class='base'>$snortrules{$rulefile}{'Description'}</td></tr>";
+ $col="bgcolor='$color{'color22'}'";
}
- # Check for display flag
- if ($displayrulefilerules) {
- # Rule file definition rule display
- print "<tr><td class='base' valign='top'><table border='0'><tr>";
-
- # Local vars
- my $ruledefdisplaycnt = 0;
- my $ruledefcnt = keys %{$snortrules{$rulefile}{"Definition"}};
- $ruledefcnt++;
- $ruledefcnt = $ruledefcnt / 2;
-
- # Loop over rule file rules
- foreach my $ruledef (sort {$a <=> $b} keys(%{$snortrules{$rulefile}{"Definition"}})) {
- # Local vars
- my $ruledefchecked = '';
-
- # If have display 2 rules, start new row
- if (($ruledefdisplaycnt % 2) == 0) {
- print "</tr><tr>";
- $ruledefdisplaycnt = 0;
- }
+ # Set rule state
+ if ($snortrules{$rulefile}{$sid}{'State'} eq 'on') {
+ $ruledefchecked = 'CHECKED';
+ }
- # Check for rules state
- if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
- $ruledefchecked = 'CHECKED';
- }
+ # Create rule checkbox and display rule description
+ print "<td class='base' width='5%' align='right' $col>\n";
+ print "<input type='checkbox' NAME='$sid' $ruledefchecked>\n";
+ print "</td>\n";
+ print "<td class='base' width='45%' $col>$snortrules{$rulefile}{$sid}{'Description'}</td>";
- # Create rule file rule's checkbox
- $checkboxname = "SNORT_RULE_$rulefile";
- $checkboxname .= "_$ruledef";
- print "<td class='base'><input type='checkbox' NAME='$checkboxname' $ruledefchecked> $snortrules{$rulefile}{'Definition'}{$ruledef}{'Description'}</td>";
+ # Increment rule count
+ $lines++;
+ }
- # Increment count
- $ruledefdisplaycnt++;
- }
+ # If do not have a second rule for row, create empty cell
+ if (($lines % 2) != 0) {
+ print "<td class='base'></td>";
+ }
- # If do not have second rule for row, create empty cell
- if (($ruledefdisplaycnt % 2) != 0) {
- print "<td class='base'></td>";
- }
+ # Close display table
+ print "</tr></table></td></tr>";
- # Close display table
- print "</tr></table></td></tr>";
- }
+ # Finished whith the rule file, increase count.
+ $rulesetcount++;
+ }
- # Close display table
- print "</table>";
+ # Close display table
+ print "</table>";
- # Increment ruledisplaycnt
- $ruledisplaycnt++;
- }
- print "</td></tr></table></td></tr></table>";
- print <<END
+print <<END
<table width='100%'>
<tr>
- <td width='100%' align='right'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
+ <td width='100%' align='right'><input type='submit' name='RULESET' value='$Lang::tr{'update'}'>
<!-- space for future online help link -->
</td>
</tr>
</form>
END
;
- &Header::closebox();
-}
-
-####################### End added for snort rules control #################################
+&Header::closebox();
&Header::closebigbox();
&Header::closepage();
+sub working ($) {
+ my $message = $_[0];
+
+ &Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
+ &Header::openbigbox('100%', 'left', '', $errormessage);
+ &Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='1'>" );
+ print <<END;
+ <table>
+ <tr>
+ <td><img src='/images/indicator.gif' alt='$Lang::tr{'aktiv'}' /></td>
+ <td>$message</td>
+ </tr>
+ <tr>
+ <td colspan='2' align='center'>
+ <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <input type='image' alt='$Lang::tr{'reload'}' title='$Lang::tr{'reload'}' src='/images/view-refresh.png' />
+ </form>
+ </tr>
+ </table>
+END
+ &Header::closebox();
+ &Header::closebigbox();
+ &Header::closepage();
+ exit;
+}
+
sub downloadrulesfile {
my $peer;
my $peerport;
return undef;
}
+ # Gather snort settings.
+ my %snortsettings = ();
+ &General::readhash("${General::swroot}/snort/settings", \%snortsettings);
+
+ # Get all available ruleset locations.
+ my %urls=();
+ &General::readhash("${General::swroot}/snort/ruleset-sources.list", \%urls);
+
+ # Grab the right url based on the configured vendor.
+ my $url = $urls{$snortsettings{'RULES'}};
+
+ # Check and pass oinkcode if the vendor requires one.
+ $url =~ s/\<oinkcode\>/$snortsettings{'OINKCODE'}/g;
+
+ # Abort if no url could be determined for the vendor.
+ unless($url) {
+ $errormessage = $Lang::tr{'could not download latest updates'};
+ return undef;
+ }
+
my %proxysettings=();
&General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
}
if ($peer) {
- system("wget -r --proxy=on --proxy-user=$proxysettings{'UPSTREAM_USER'} --proxy-passwd=$proxysettings{'UPSTREAM_PASSWORD'} -e http_proxy=http://$peer:$peerport/ -o /var/tmp/log --no-check-certificate --output-document=/var/tmp/snortrules.tar.gz $url");
+ system("wget -r --proxy=on --proxy-user=$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");
} else {
- system("wget -r --no-check-certificate -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url");
+ system("wget -r -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url");
}
}
+
+sub oinkmaster () {
+ # Call oinkmaster to generate ruleset.
+ system("/usr/local/bin/oinkmaster.pl -v -s -u file:///var/tmp/snortrules.tar.gz -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules >>/var/tmp/log 2>&1 &");
+}
+
+sub readrulesfile ($) {
+ my $rulefile = shift;
+
+ # Open rule file and read in contents
+ open(RULEFILE, "$snortrulepath/$rulefile") or die "Unable to read $rulefile!";
+
+ # Store file content in an array.
+ my @lines = <RULEFILE>;
+
+ # Close file.
+ close(RULEFILE);
+
+ # Loop over rule file contents
+ foreach my $line (@lines) {
+ # Remove whitespaces.
+ chomp $line;
+
+ # Skip blank lines.
+ next if ($line =~ /^\s*$/);
+
+ # Local vars.
+ my $sid;
+ my $msg;
+
+ # Gather rule sid and message from the ruleline.
+ if ($line =~ m/.*msg:\"(.*?)\"\; .* sid:(.*?); /) {
+ $msg = $1;
+ $sid = $2;
+
+ # Check if a rule has been found.
+ if ($sid && $msg) {
+ # Add rule to the snortrules hash.
+ $snortrules{$rulefile}{$sid}{'Description'} = $msg;
+
+ # Grab status of the rule. Check if ruleline starts with a "dash".
+ if ($line =~ /^\#/) {
+ # If yes, the rule is disabled.
+ $snortrules{$rulefile}{$sid}{'State'} = "off";
+ } else {
+ # Otherwise the rule is enabled.
+ $snortrules{$rulefile}{$sid}{'State'} = "on";
+ }
+ }
+ }
+ }
+}
projects / ipfire-2.x.git / blobdiff