###############################################################################
# #
# IPFire.org - A linux based firewall #
-# Copyright (C) 2007-2015 IPFire Team <info@ipfire.org> #
+# Copyright (C) 2007-2018 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 #
# enable only the following on debugging purpose
#use warnings;
#use CGI::Carp 'fatalsToBrowser';
-use File::Copy;
require '/var/ipfire/general-functions.pl';
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;
+require "${General::swroot}/ids-functions.pl";
my %color = ();
my %mainsettings = ();
+my %idsrules = ();
+my %idssettings=();
+my %rulessettings=();
+my %rulesetsources = ();
+my %cgiparams=();
+my %checked=();
+my %selected=();
+my %ignored=();
+
+# Read-in main settings, for language, theme and colors.
&General::readhash("${General::swroot}/main/settings", \%mainsettings);
&General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
-my %snortsettings=();
-my %checked=();
-my %selected=();
-my %netsettings=();
-our $errormessage = '';
-our $results = '';
-our $tempdir = '';
-our $url='';
-&General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
+# Get the available network zones, based on the config type of the system and store
+# the list of zones in an array.
+my @network_zones = &IDS::get_available_network_zones();
+
+my $errormessage;
+
+# Create files if they does not exist yet.
+&IDS::check_and_create_filelayout();
+
+# Hash which contains the colour code of a network zone.
+my %colourhash = (
+ 'red' => $Header::colourred,
+ 'green' => $Header::colourgreen,
+ 'blue' => $Header::colourblue,
+ 'orange' => $Header::colourorange
+);
&Header::showhttpheaders();
-$snortsettings{'ENABLE_SNORT'} = 'off';
-$snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
-$snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
-$snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
-$snortsettings{'ACTION'} = '';
-$snortsettings{'RULES'} = '';
-$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 $line;
+#Get GUI values
+&Header::getcgihash(\%cgiparams);
- # Check for a line with .rules
- if ($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";
+## Add/edit an entry to the ignore file.
+#
+if (($cgiparams{'WHITELIST'} eq $Lang::tr{'add'}) || ($cgiparams{'WHITELIST'} eq $Lang::tr{'update'})) {
- # 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 !~ /^\#/) {
- $desclook = 0;
- }
+ # Check if any input has been performed.
+ if ($cgiparams{'IGNORE_ENTRY_ADDRESS'} ne '') {
- # 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
- $desclook = 0;
- }
- }
+ # Check if the given input is no valid IP-address or IP-address with subnet, display an error message.
+ if ((!&General::validip($cgiparams{'IGNORE_ENTRY_ADDRESS'})) && (!&General::validipandmask($cgiparams{'IGNORE_ENTRY_ADDRESS'}))) {
+ $errormessage = "$Lang::tr{'guardian invalid address or subnet'}";
+ }
+ } else {
+ $errormessage = "$Lang::tr{'guardian empty input'}";
+ }
- # 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';
- }
- }
- }
+ # Go further if there was no error.
+ if ($errormessage eq '') {
+ my %ignored = ();
+ my $id;
+ my $status;
- # Print ruleline to RULEFILE
- print RULEFILE "$ruleline\n";
- }
+ # Assign hash values.
+ my $new_entry_address = $cgiparams{'IGNORE_ENTRY_ADDRESS'};
+ my $new_entry_remark = $cgiparams{'IGNORE_ENTRY_REMARK'};
- # Close RULEFILE
- close(RULEFILE);
+ # Read-in ignoredfile.
+ &General::readhasharray($IDS::ignored_file, \%ignored);
- # 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"}))) {
- $restartsnortrequired = 1;
- }
+ # Check if we should edit an existing entry and got an ID.
+ if (($cgiparams{'WHITELIST'} eq $Lang::tr{'update'}) && ($cgiparams{'ID'})) {
+ # Assin the provided id.
+ $id = $cgiparams{'ID'};
- # Strip out leading # from rule line
- $line =~ s/\# ?//i;
+ # Undef the given ID.
+ undef($cgiparams{'ID'});
- # Check if it does not exists (which means it is disabled), append a #
- if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
- $line = "# $line";
- }
+ # Grab the configured status of the corresponding entry.
+ $status = $ignored{$id}[2];
+ } else {
+ # Each newly added entry automatically should be enabled.
+ $status = "enabled";
- }
+ # Generate the ID for the new entry.
+ #
+ # Sort the keys by their ID and store them in an array.
+ my @keys = sort { $a <=> $b } keys %ignored;
- # Check for rule state
- if ($line =~ /^\#/) {
- $snortrules{$rule}{"State"} = "Disabled";
- } else {
- $snortrules{$rule}{"State"} = "Enabled";
- }
+ # Reverse the key array.
+ my @reversed = reverse(@keys);
- # Set rule description
- $snortrules{$rule}{"Description"} = $snortruledesc;
+ # Obtain the last used id.
+ my $last_id = @reversed[0];
- # 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'};
- }
+ # Increase the last id by one and use it as id for the new entry.
+ $id = ++$last_id;
+ }
+
+ # Add/Modify the entry to/in the ignored hash.
+ $ignored{$id} = ["$new_entry_address", "$new_entry_remark", "$status"];
+
+ # Write the changed ignored hash to the ignored file.
+ &General::writehasharray($IDS::ignored_file, \%ignored);
+
+ # Regenerate the ignore file.
+ &GenerateIgnoreFile();
+ }
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
+ }
+
+## Toggle Enabled/Disabled for an existing entry on the ignore list.
+#
+
+} elsif ($cgiparams{'WHITELIST'} eq $Lang::tr{'toggle enable disable'}) {
+ my %ignored = ();
+
+ # Only go further, if an ID has been passed.
+ if ($cgiparams{'ID'}) {
+ # Assign the given ID.
+ my $id = $cgiparams{'ID'};
+
+ # Undef the given ID.
+ undef($cgiparams{'ID'});
+
+ # Read-in ignoredfile.
+ &General::readhasharray($IDS::ignored_file, \%ignored);
- $snortruledesc = '';
- print FILE "$line\n";
- } elsif ($line =~ /var RULE_PATH/) {
- ($tmp, $tmp, $snortrulepath) = split(' ', $line);
- print FILE "$line\n";
+ # Grab the configured status of the corresponding entry.
+ my $status = $ignored{$id}[2];
+
+ # Switch the status.
+ if ($status eq "disabled") {
+ $status = "enabled";
} else {
- print FILE "$line\n";
+ $status = "disabled";
+ }
+
+ # Modify the status of the existing entry.
+ $ignored{$id} = ["$ignored{$id}[0]", "$ignored{$id}[1]", "$status"];
+
+ # Write the changed ignored hash to the ignored file.
+ &General::writehasharray($IDS::ignored_file, \%ignored);
+
+ # Regenerate the ignore file.
+ &GenerateIgnoreFile();
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
}
}
- close(FILE);
- if ($restartsnortrequired) {
- system('/usr/local/bin/snortctrl restart >/dev/null');
+## Remove entry from ignore list.
+#
+} elsif ($cgiparams{'WHITELIST'} eq $Lang::tr{'remove'}) {
+ my %ignored = ();
+
+ # Read-in ignoredfile.
+ &General::readhasharray($IDS::ignored_file, \%ignored);
+
+ # Drop entry from the hash.
+ delete($ignored{$cgiparams{'ID'}});
+
+ # Undef the given ID.
+ undef($cgiparams{'ID'});
+
+ # Write the changed ignored hash to the ignored file.
+ &General::writehasharray($IDS::ignored_file, \%ignored);
+
+ # Regenerate the ignore file.
+ &GenerateIgnoreFile();
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
}
}
-####################### End added for snort rules control #################################
+# Check if any error has been stored.
+if (-e $IDS::storederrorfile) {
+ # Open file to read in the stored error message.
+ open(FILE, "<$IDS::storederrorfile") or die "Could not open $IDS::storederrorfile. $!\n";
+
+ # Read the stored error message.
+ $errormessage = <FILE>;
-if ($snortsettings{'OINKCODE'} ne "") {
- $errormessage = $Lang::tr{'invalid input for oink code'} unless ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/);
+ # Close file.
+ close (FILE);
+
+ # Delete the file, which is now not longer required.
+ unlink($IDS::storederrorfile);
}
-
-if (!$errormessage) {
- if ($snortsettings{'RULES'} eq 'subscripted') {
- $url=" https://www.snort.org/rules/snortrules-snapshot-29120.tar.gz?oinkcode=$snortsettings{'OINKCODE'}";
- } elsif ($snortsettings{'RULES'} eq 'registered') {
- $url=" https://www.snort.org/rules/snortrules-snapshot-29120.tar.gz?oinkcode=$snortsettings{'OINKCODE'}";
- } elsif ($snortsettings{'RULES'} eq 'community') {
- $url=" https://www.snort.org/rules/community";
- } else {
- $url="https://rules.emergingthreats.net/open/snort-2.9.0/emerging.rules.tar.gz";
+## Grab all available snort rules and store them in the idsrules hash.
+#
+# Open snort rules directory and do a directory listing.
+opendir(DIR, $IDS::rulespath) or die $!;
+ # Loop through the direcory.
+ while (my $file = readdir(DIR)) {
+
+ # We only want files.
+ next unless (-f "$IDS::rulespath/$file");
+
+ # Ignore empty files.
+ next if (-z "$IDS::rulespath/$file");
+
+ # Use a regular expression to find files ending in .rules
+ next unless ($file =~ m/\.rules$/);
+
+ # Ignore files which are not read-able.
+ next unless (-R "$IDS::rulespath/$file");
+
+ # Skip whitelist rules file.
+ next if( $file eq "whitelist.rules");
+
+ # Call subfunction to read-in rulefile and add rules to
+ # the idsrules hash.
+ &readrulesfile("$file");
}
- if ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "snort" ) {
- &General::writehash("${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";
+closedir(DIR);
+
+# Gather used rulefiles.
+#
+# Check if the file for activated rulefiles is not empty.
+if(-f $IDS::used_rulefiles_file) {
+ # Open the file for used rulefile and read-in content.
+ open(FILE, $IDS::used_rulefiles_file) or die "Could not open $IDS::used_rulefiles_file. $!\n";
+
+ # Read-in content.
+ my @lines = <FILE>;
+
+ # Close file.
+ close(FILE);
+
+ # Loop through the array.
+ foreach my $line (@lines) {
+ # Remove newlines.
+ chomp($line);
+
+ # Skip comments.
+ next if ($line =~ /\#/);
+
+ # Skip blank lines.
+ next if ($line =~ /^\s*$/);
+
+ # Gather rule sid and message from the ruleline.
+ if ($line =~ /.*- (.*)/) {
+ my $rulefile = $1;
+
+ # Check if the current rulefile exists in the %idsrules hash.
+ # If not, the file probably does not exist anymore or contains
+ # no rules.
+ if($idsrules{$rulefile}) {
+ # Add the rulefile state to the %idsrules hash.
+ $idsrules{$rulefile}{'Rulefile'}{'State'} = "on";
+ }
}
- if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
- {
- system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
- } else {
- unlink "${General::swroot}/snort/enable_green";
+ }
+}
+
+# Save ruleset configuration.
+if ($cgiparams{'RULESET'} eq $Lang::tr{'save'}) {
+ my %oldsettings;
+
+ # Read-in current (old) IDS settings.
+ &General::readhash("$IDS::rules_settings_file", \%oldsettings);
+
+ # Prevent form name from been stored in conf file.
+ delete $cgiparams{'RULESET'};
+
+ # Check if an oinkcode has been provided.
+ if ($cgiparams{'OINKCODE'}) {
+ # Check if the oinkcode contains unallowed chars.
+ unless ($cgiparams{'OINKCODE'} =~ /^[a-z0-9]+$/) {
+ $errormessage = $Lang::tr{'invalid input for oink code'};
}
- if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
- {
- system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
- } else {
- unlink "${General::swroot}/snort/enable_blue";
+ }
+
+ # Go on if there are no error messages.
+ if (!$errormessage) {
+ # Store settings into settings file.
+ &General::writehash("$IDS::rules_settings_file", \%cgiparams);
+ }
+
+ # Check if the the automatic rule update hass been touched.
+ if($cgiparams{'AUTOUPDATE_INTERVAL'} ne $oldsettings{'AUTOUPDATE_INTERVAL'}) {
+ # Call suricatactrl to set the new interval.
+ &IDS::call_suricatactrl("cron", $cgiparams{'AUTOUPDATE_INTERVAL'});
+ }
+
+# Save ruleset.
+} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
+ # Arrays to store which rulefiles have been enabled and will be used.
+ my @enabled_rulefiles;
+
+ # Hash to store the user-enabled and disabled sids.
+ my %enabled_disabled_sids;
+
+ # Loop through the hash of idsrules.
+ foreach my $rulefile(keys %idsrules) {
+ # Check if the rulefile is enabled.
+ if ($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 ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
- {
- system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
- } else {
- unlink "${General::swroot}/snort/enable_orange";
+ }
+
+ # Read-in the files for enabled/disabled sids.
+ # This will be done by calling the read_enabled_disabled_sids_file function two times
+ # and merge the returned hashes together into the enabled_disabled_sids hash.
+ %enabled_disabled_sids = (
+ &read_enabled_disabled_sids_file($IDS::disabled_sids_file),
+ &read_enabled_disabled_sids_file($IDS::enabled_sids_file));
+
+ # Loop through the hash of idsrules.
+ foreach my $rulefile (keys %idsrules) {
+ # Loop through the single rules of the rulefile.
+ foreach my $sid (keys %{$idsrules{$rulefile}}) {
+ # Skip the current sid if it is not numeric.
+ next unless ($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 ($idsrules{$rulefile}{$sid}{'State'} eq "off") {
+ # Check if the state has been set to 'on'.
+ if ($cgiparams{$sid} eq "on") {
+ # Add/Modify the sid to/in the enabled_disabled_sids hash.
+ $enabled_disabled_sids{$sid} = "enabled";
+
+ # Drop item from cgiparams hash.
+ delete $cgiparams{$rulefile}{$sid};
+ }
+ }
+ } else {
+ # Look if the rule is enabled.
+ if ($idsrules{$rulefile}{$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/Modify it to/in the enabled_disabled_sids hash.
+ $enabled_disabled_sids{$sid} = "disabled";
+
+ # Drop item from cgiparams hash.
+ delete $cgiparams{$rulefile}{$sid};
+ }
+ }
}
- if ($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";
+ }
+
+ # Open enabled sid's file for writing.
+ open(ENABLED_FILE, ">$IDS::enabled_sids_file") or die "Could not write to $IDS::enabled_sids_file. $!\n";
+
+ # Open disabled sid's file for writing.
+ open(DISABLED_FILE, ">$IDS::disabled_sids_file") or die "Could not write to $IDS::disabled_sids_file. $!\n";
+
+ # Write header to the files.
+ print ENABLED_FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+ print DISABLED_FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+
+ # Check if the hash for enabled/disabled files contains any entries.
+ if (%enabled_disabled_sids) {
+ # Loop through the hash.
+ foreach my $sid (keys %enabled_disabled_sids) {
+ # Check if the sid is enabled.
+ if ($enabled_disabled_sids{$sid} eq "enabled") {
+ # Print the sid to the enabled_sids file.
+ print ENABLED_FILE "enablesid $sid\n";
+ # Check if the sid is disabled.
+ } elsif ($enabled_disabled_sids{$sid} eq "disabled") {
+ # Print the sid to the disabled_sids file.
+ print DISABLED_FILE "disablesid $sid\n";
+ # Something strange happende - skip the current sid.
+ } else {
+ next;
+ }
}
+ }
+
+ # Close file for enabled_sids after writing.
+ close(ENABLED_FILE);
+
+ # Close file for disabled_sids after writing.
+ close(DISABLED_FILE);
+
+ # Call function to generate and write the used rulefiles file.
+ &IDS::write_used_rulefiles_file(@enabled_rulefiles);
+
+ # Lock the webpage and print message.
+ &working_notice("$Lang::tr{'snort working'}");
- system('/usr/local/bin/snortctrl restart >/dev/null');
+ # Call oinkmaster to alter the ruleset.
+ &IDS::oinkmaster();
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
}
- # INSTALLMD5 is not in the form, so not retrieved by getcgihash
- &General::readhash("${General::swroot}/snort/settings", \%snortsettings);
+ # Reload page.
+ &reload();
- if ($snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'} || $snortsettings{'ACTION'} eq $Lang::tr{'upload new ruleset'}) {
- my @df = `/bin/df -B M /var`;
- foreach my $line (@df) {
- next if $line =~ m/^Filesystem/;
- my $return;
+# Download new ruleset.
+} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'download new ruleset'}) {
+ # Check if the red device is active.
+ unless (-e "${General::swroot}/red/active") {
+ $errormessage = $Lang::tr{'could not download latest updates'};
+ }
- if ($line =~ m/dev/ ) {
- $line =~ m/^.* (\d+)M.*$/;
- my @temp = split(/ +/,$line);
- if ($1<300) {
- $errormessage = "$Lang::tr{'not enough disk space'} < 300MB, /var $1MB";
- } else {
- if ( $snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'}) {
- &downloadrulesfile();
- sleep(3);
- $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 enought free disk space is availabe.
+ if(&IDS::checkdiskspace()) {
+ $errormessage = "$Lang::tr{'not enough disk space'}";
+ }
- 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);
- }
- }
+ # Check if any errors happend.
+ unless ($errormessage) {
+ # Lock the webpage and print notice about downloading
+ # a new ruleset.
+ &working_notice("$Lang::tr{'snort working'}");
+
+ # Call subfunction to download the ruleset.
+ if(&IDS::downloadruleset()) {
+ $errormessage = $Lang::tr{'could not download latest updates'};
+
+ # Call function to store the errormessage.
+ &IDS::_store_error_message($errormessage);
+
+ # Preform a reload of the page.
+ &reload();
+ } else {
+ # Call subfunction to launch oinkmaster.
+ &IDS::oinkmaster();
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
+ }
+
+ # Perform a reload of the page.
+ &reload();
+ }
+ }
+# Save snort settings.
+} elsif ($cgiparams{'IDS'} eq $Lang::tr{'save'}) {
+ my %oldidssettings;
+ my $reload_page;
+ my $monitored_zones = 0;
+
+ # Read-in current (old) IDS settings.
+ &General::readhash("$IDS::ids_settings_file", \%oldidssettings);
+
+ # Prevent form name from been stored in conf file.
+ delete $cgiparams{'IDS'};
+
+ # Check if the IDS should be enabled.
+ if ($cgiparams{'ENABLE_IDS'} eq "on") {
+ # Check if any ruleset is available. Otherwise abort and display an error.
+ unless(%idsrules) {
+ $errormessage = $Lang::tr{'ids no ruleset available'};
+ }
+
+ # Loop through the array of available interfaces.
+ foreach my $zone (@network_zones) {
+ # Convert interface name into upper case.
+ my $zone_upper = uc($zone);
+
+ # Check if the IDS is enabled for this interaces.
+ if ($cgiparams{"ENABLE_IDS_$zone_upper"}) {
+ # Increase count.
+ $monitored_zones++;
}
}
+
+ # Check if at least one zone should be monitored, or show an error.
+ unless ($monitored_zones >= 1) {
+ $errormessage = $Lang::tr{'ids no network zone'};
+ }
+ }
+
+ # Go on if there are no error messages.
+ if (!$errormessage) {
+ # Store settings into settings file.
+ &General::writehash("$IDS::ids_settings_file", \%cgiparams);
+ }
+
+ # Generate file to store the home net.
+ &IDS::generate_home_net_file();
+
+ # Temporary variable to set the ruleaction.
+ # Default is "drop" to use suricata as IPS.
+ my $ruleaction="drop";
+
+ # Check if the traffic only should be monitored.
+ if($cgiparams{'MONITOR_TRAFFIC_ONLY'} eq 'on') {
+ # Switch the ruleaction to "alert".
+ # Suricata acts as an IDS only.
+ $ruleaction="alert";
+ }
+
+ # Write the modify sid's file and pass the taken ruleaction.
+ &IDS::write_modify_sids_file($ruleaction);
+
+ # Check if "MONITOR_TRAFFIC_ONLY" has been changed.
+ if($cgiparams{'MONITOR_TRAFFIC_ONLY'} ne $oldidssettings{'MONITOR_TRAFFIC_ONLY'}) {
+ # Check if a ruleset exists.
+ if (%idsrules) {
+ # Lock the webpage and print message.
+ &working_notice("$Lang::tr{'snort working'}");
+
+ # Call oinkmaster to alter the ruleset.
+ &IDS::oinkmaster();
+
+ # Set reload_page to "True".
+ $reload_page="True";
+ }
+ }
+
+ # Check if the IDS currently is running.
+ if(&IDS::ids_is_running()) {
+ # Check if ENABLE_IDS is set to on.
+ if($cgiparams{'ENABLE_IDS'} eq "on") {
+ # Call suricatactrl to perform a reload of suricata.
+ &IDS::call_suricatactrl("reload");
+ } else {
+ # Call suricatactrl to stop suricata.
+ &IDS::call_suricatactrl("stop");
+ }
+ } else {
+ # Call suricatactrl to start suricata.
+ &IDS::call_suricatactrl("start");
+ }
+
+ # Check if the page should be reloaded.
+ if ($reload_page) {
+ # Perform a reload of the page.
+ &reload();
}
}
-$checked{'ENABLE_SNORT'}{'off'} = '';
-$checked{'ENABLE_SNORT'}{'on'} = '';
-$checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
-$checked{'ENABLE_SNORT_GREEN'}{'off'} = '';
-$checked{'ENABLE_SNORT_GREEN'}{'on'} = '';
-$checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'";
-$checked{'ENABLE_SNORT_BLUE'}{'off'} = '';
-$checked{'ENABLE_SNORT_BLUE'}{'on'} = '';
-$checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'";
-$checked{'ENABLE_SNORT_ORANGE'}{'off'} = '';
-$checked{'ENABLE_SNORT_ORANGE'}{'on'} = '';
-$checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'";
+# Read-in idssettings and rulesetsettings
+&General::readhash("$IDS::ids_settings_file", \%idssettings);
+&General::readhash("$IDS::rules_settings_file", \%rulessettings);
+
+# If no autoupdate intervall has been configured yet, set default value.
+unless(exists($rulessettings{'AUTOUPDATE_INTERVAL'})) {
+ # Set default to "weekly".
+ $rulessettings{'AUTOUPDATE_INTERVAL'} = 'weekly';
+}
+
+# Read-in ignored hosts.
+&General::readhasharray("$IDS::settingsdir/ignored", \%ignored);
+
+$checked{'ENABLE_IDS'}{'off'} = '';
+$checked{'ENABLE_IDS'}{'on'} = '';
+$checked{'ENABLE_IDS'}{$idssettings{'ENABLE_IDS'}} = "checked='checked'";
+$checked{'MONITOR_TRAFFIC_ONLY'}{'off'} = '';
+$checked{'MONITOR_TRAFFIC_ONLY'}{'on'} = '';
+$checked{'MONITOR_TRAFFIC_ONLY'}{$idssettings{'MONITOR_TRAFFIC_ONLY'}} = "checked='checked'";
$selected{'RULES'}{'nothing'} = '';
$selected{'RULES'}{'community'} = '';
$selected{'RULES'}{'emerging'} = '';
$selected{'RULES'}{'registered'} = '';
$selected{'RULES'}{'subscripted'} = '';
-$selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'";
+$selected{'RULES'}{$rulessettings{'RULES'}} = "selected='selected'";
+$selected{'AUTOUPDATE_INTERVAL'}{'off'} = '';
+$selected{'AUTOUPDATE_INTERVAL'}{'daily'} = '';
+$selected{'AUTOUPDATE_INTERVAL'}{'weekly'} = '';
+$selected{'AUTOUPDATE_INTERVAL'}{$rulessettings{'AUTOUPDATE_INTERVAL'}} = "selected='selected'";
&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;'>" );
+# Draw current state of the IDS
+&Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system'});
+
+# Check if the IDS is running and obtain the process-id.
+my $pid = &IDS::ids_is_running();
+
+# Display some useful information, if suricata daemon is running.
+if ($pid) {
+ # Gather used memory.
+ my $memory = &get_memory_usage($pid);
+
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>
+ <table width='95%' cellspacing='0' class='tbl'>
+ <tr>
+ <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'intrusion detection'}</strong></th>
+ </tr>
+
+ <tr>
+ <td class='base'>$Lang::tr{'guardian daemon'}</td>
+ <td align='center' colspan='2' width='75%' bgcolor='${Header::colourgreen}'><font color='white'><strong>$Lang::tr{'running'}</strong></font></td>
+ </tr>
+
+ <tr>
+ <td class='base'></td>
+ <td bgcolor='$color{'color20'}' align='center'><strong>PID</strong></td>
+ <td bgcolor='$color{'color20'}' align='center'><strong>$Lang::tr{'memory'}</strong></td>
+ </tr>
+
+ <tr>
+ <td class='base'></td>
+ <td bgcolor='$color{'color22'}' align='center'>$pid</td>
+ <td bgcolor='$color{'color22'}' align='center'>$memory KB</td>
+ </tr>
+ </table>
END
- my @output = `tail -20 /var/tmp/log`;
- foreach (@output) {
- print "$_";
- }
+} else {
+ # Otherwise display a hint that the service is not launched.
print <<END;
- </pre>
+ <table width='95%' cellspacing='0' class='tbl'>
+ <tr>
+ <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'intrusion detection'}</strong></th>
+ </tr>
+
+ <tr>
+ <td class='base'>$Lang::tr{'guardian daemon'}</td>
+ <td align='center' width='75%' bgcolor='${Header::colourred}'><font color='white'><strong>$Lang::tr{'stopped'}</strong></font></td>
+ </tr>
</table>
END
- &Header::closebox();
- &Header::closebigbox();
- &Header::closepage();
- exit;
- refreshpage();
}
+&Header::closebox();
+
+my $rulesdate;
+
+# Check if a ruleset allready has been downloaded.
+if ( -f "$IDS::rulestarball"){
+ # Call stat on the filename to obtain detailed information.
+ my @Info = stat("$IDS::rulestarball");
+
+ # Grab details about the creation time.
+ $rulesdate = localtime($Info[9]);
+}
+
+# Draw elements for IDS configuration.
+&Header::openbox('100%', 'center', $Lang::tr{'settings'});
-&Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system'});
print <<END
-<form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
-<tr><td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />GREEN Snort
+<form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <table width='100%' border='0'>
+ <tr>
+ <td class='base' colspan='2'>
+ <input type='checkbox' name='ENABLE_IDS' $checked{'ENABLE_IDS'}{'on'}>$Lang::tr{'ids activate'} $Lang::tr{'intrusion detection system'}
+ </td>
+
+ <td class='base' colspan='2'>
+ <input type='checkbox' name='MONITOR_TRAFFIC_ONLY' $checked{'MONITOR_TRAFFIC_ONLY'}{'on'}>$Lang::tr{'ids monitor traffic only'}
+ </td>
+ </tr>
+
+ <tr>
+ <td><br><br></td>
+ <td><br><br></td>
+ <td><br><br></td>
+ <td><br><br></td>
+ </tr>
+
+ <tr>
+ <td colspan='4'><b>$Lang::tr{'ids monitored interfaces'}</b><br></td>
+ </tr>
+
+ <tr>
END
;
-if ($netsettings{'BLUE_DEV'} ne '') {
- print " <input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} /> BLUE Snort";
-}
-if ($netsettings{'ORANGE_DEV'} ne '') {
- print " <input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} /> ORANGE Snort";
+
+# Loop through the array of available networks and print config options.
+foreach my $zone (@network_zones) {
+ my $checked_input;
+ my $checked_forward;
+
+ # Convert current zone name to upper case.
+ my $zone_upper = uc($zone);
+
+ # Set zone name.
+ my $zone_name = $zone;
+
+ # Dirty hack to get the correct language string for the red zone.
+ if ($zone eq "red") {
+ $zone_name = "red1";
+ }
+
+ # Grab checkbox status from settings hash.
+ if ($idssettings{"ENABLE_IDS_$zone_upper"} eq "on") {
+ $checked_input = "checked = 'checked'";
+ }
+
+ print "<td class='base' width='25%'>\n";
+ print "<input type='checkbox' name='ENABLE_IDS_$zone_upper' $checked_input>\n";
+ print " $Lang::tr{'enabled on'}<font color='$colourhash{$zone}'> $Lang::tr{$zone_name}</font>\n";
+ print "</td>\n";
}
- print " <input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} /> RED Snort";
print <<END
-</td></tr>
-<tr>
- <td><br><br></td>
-</tr>
-<tr>
- <td><b>$Lang::tr{'ids rules update'}</b></td>
-</tr>
-<tr>
- <td><select name='RULES'>
- <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
+ </tr>
+ </table>
+
+ <br><br>
+
+ <table width='100%'>
+ <tr>
+ <td align='right'><input type='submit' name='IDS' value='$Lang::tr{'save'}' /></td>
+ </tr>
+ </table>
+</form>
+END
+;
+
+&Header::closebox();
+
+# Draw elements for ruleset configuration.
+&Header::openbox('100%', 'center', $Lang::tr{'ids ruleset settings'});
+
+print <<END
+<form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <table width='100%' border='0'>
+ <tr>
+ <td><b>$Lang::tr{'ids rules update'}</b></td>
+ <td><b>$Lang::tr{'ids automatic rules update'}</b></td>
+ </tr>
+
+ <tr>
+ <td><select name='RULES'>
<option value='emerging' $selected{'RULES'}{'emerging'} >$Lang::tr{'emerging rules'}</option>
<option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
<option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
<option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
</select>
- </td>
-</tr>
-<tr>
- <td><br />
- $Lang::tr{'ids rules license'} <a href='https://www.snort.org/subscribe' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}<br /><br />
- $Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'}
- </td>
-</tr>
-<tr>
- <td nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
-</tr>
-<tr>
- <td width='30%' align='left'><br><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
+ </td>
+
+ <td>
+ <select name='AUTOUPDATE_INTERVAL'>
+ <option value='off' $selected{'AUTOUPDATE_INTERVAL'}{'off'} >$Lang::tr{'no'}</option>
+ <option value='daily' $selected{'AUTOUPDATE_INTERVAL'}{'daily'} >$Lang::tr{'urlfilter daily'}</option>
+ <option value='weekly' $selected{'AUTOUPDATE_INTERVAL'}{'weekly'} >$Lang::tr{'urlfilter weekly'}</option>
+ </select>
+ </td>
+ </tr>
+
+ <tr>
+ <td colspan='2'>
+ <br>$Lang::tr{'ids rules license'} <a href='https://www.snort.org/subscribe' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}</br>
+ <br>$Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'}</br>
+ </td>
+ </tr>
+
+ <tr>
+ <td colspan='2' nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$rulessettings{'OINKCODE'}'></td>
+ </tr>
+
+ <tr>
+ <td> </td>
+
+ <td align='right'>
END
;
-if ( -e "/var/tmp/snortrules.tar.gz"){
- my @Info = stat("/var/tmp/snortrules.tar.gz");
- $snortsettings{'INSTALLDATE'} = localtime($Info[9]);
-}
-print " $Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>";
+ # Check if a ruleset source has been configured yet.
+ unless($rulessettings{'RULES'}) {
+ # If no ruleset settings have been saved yet, disable the button to download / update the ruleset.
+ print"<input type='submit' name='RULESET' disabled='disabled' value='$Lang::tr{'download new ruleset'}'>\n";
+ } else {
+ # Ruleset setting have been saved. - Check if a ruleset already is downloaded.
+ if (%idsrules) {
+ # Allow to press the button and show it as "update ruleset".
+ print"<input type='submit' name='RULESET' value='$Lang::tr{'update ruleset'}'>\n";
+ } else {
+ # Also allow to press the button, but show it as "download new ruleset".
+ print"<input type='submit' name='RULESET' value='$Lang::tr{'download new ruleset'}'>\n";
+ }
+ }
+print <<END;
+ <input type='submit' name='RULESET' value='$Lang::tr{'save'}'>
+ </td>
-print <<END
-</tr>
-</table>
-<br><br>
-<table width='100%'>
-<tr>
- <td align='right'><input type='hidden' name='ACTION2' value='snort' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
-</tr>
-</table>
+ </tr>
+ </table>
</form>
END
;
-if ($results ne '') {
- print "$results";
-}
+&Header::closebox();
+
+#
+# Whitelist / Ignorelist
+#
+&Header::openbox('100%', 'center', $Lang::tr{'guardian ignored hosts'});
+
+print <<END;
+ <table width='100%'>
+ <tr>
+ <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'ip address'}</b></td>
+ <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'remark'}</b></td>
+ <td class='base' colspan='3' bgcolor='$color{'color20'}'></td>
+ </tr>
+END
+ # Check if some hosts have been added to be ignored.
+ if (keys (%ignored)) {
+ my $col = "";
+
+ # Loop through all entries of the hash.
+ while( (my $key) = each %ignored) {
+ # Assign data array positions to some nice variable names.
+ my $address = $ignored{$key}[0];
+ my $remark = $ignored{$key}[1];
+ my $status = $ignored{$key}[2];
+
+ # Check if the key (id) number is even or not.
+ if ($cgiparams{'ID'} eq $key) {
+ $col="bgcolor='${Header::colouryellow}'";
+ } elsif ($key % 2) {
+ $col="bgcolor='$color{'color22'}'";
+ } else {
+ $col="bgcolor='$color{'color20'}'";
+ }
+
+ # Choose icon for the checkbox.
+ my $gif;
+ my $gdesc;
+
+ # Check if the status is enabled and select the correct image and description.
+ if ($status eq 'enabled' ) {
+ $gif = 'on.gif';
+ $gdesc = $Lang::tr{'click to disable'};
+ } else {
+ $gif = 'off.gif';
+ $gdesc = $Lang::tr{'click to enable'};
+ }
+
+print <<END;
+ <tr>
+ <td width='20%' class='base' $col>$address</td>
+ <td width='65%' class='base' $col>$remark</td>
+
+ <td align='center' $col>
+ <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <input type='hidden' name='WHITELIST' value='$Lang::tr{'toggle enable disable'}' />
+ <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$gif' alt='$gdesc' title='$gdesc' />
+ <input type='hidden' name='ID' value='$key' />
+ </form>
+ </td>
+
+ <td align='center' $col>
+ <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <input type='hidden' name='WHITELIST' value='$Lang::tr{'edit'}' />
+ <input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' alt='$Lang::tr{'edit'}' title='$Lang::tr{'edit'}' />
+ <input type='hidden' name='ID' value='$key' />
+ </form>
+ </td>
+
+ <td align='center' $col>
+ <form method='post' name='$key' action='$ENV{'SCRIPT_NAME'}'>
+ <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' title='$Lang::tr{'remove'}' alt='$Lang::tr{'remove'}'>
+ <input type='hidden' name='ID' value='$key'>
+ <input type='hidden' name='WHITELIST' value='$Lang::tr{'remove'}'>
+ </form>
+ </td>
+ </tr>
+END
+ }
+ } else {
+ # Print notice that currently no hosts are ignored.
+ print "<tr>\n";
+ print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n";
+ print "</tr>\n";
+ }
+
+ print "</table>\n";
+
+ # Section to add new elements or edit existing ones.
+print <<END;
+ <br>
+ <hr>
+ <br>
+
+ <div align='center'>
+ <table width='100%'>
+END
+
+ # Assign correct headline and button text.
+ my $buttontext;
+ my $entry_address;
+ my $entry_remark;
+
+ # Check if an ID (key) has been given, in this case an existing entry should be edited.
+ if ($cgiparams{'ID'} ne '') {
+ $buttontext = $Lang::tr{'update'};
+ print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'update'}</b></td></tr>\n";
+
+ # Grab address and remark for the given key.
+ $entry_address = $ignored{$cgiparams{'ID'}}[0];
+ $entry_remark = $ignored{$cgiparams{'ID'}}[1];
+ } else {
+ $buttontext = $Lang::tr{'add'};
+ print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'dnsforward add a new entry'}</b></td></tr>\n";
+ }
+
+print <<END;
+ <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <input type='hidden' name='ID' value='$cgiparams{'ID'}'>
+ <tr>
+ <td width='30%'>$Lang::tr{'ip address'}: </td>
+ <td width='50%'><input type='text' name='IGNORE_ENTRY_ADDRESS' value='$entry_address' size='24' /></td>
+
+ <td width='30%'>$Lang::tr{'remark'}: </td>
+ <td wicth='50%'><input type='text' name=IGNORE_ENTRY_REMARK value='$entry_remark' size='24' /></td>
+ <td align='center' width='20%'><input type='submit' name='WHITELIST' value='$buttontext' /></td>
+ </tr>
+ </form>
+ </table>
+ </div>
+END
&Header::closebox();
-####################### Added for snort rules control #################################
-if ( -e "${General::swroot}/snort/enable" || -e "${General::swroot}/snort/enable_green" || -e "${General::swroot}/snort/enable_blue" || -e "${General::swroot}/snort/enable_orange" ) {
+# Only show the section for configuring the ruleset if one is present.
+if (%idsrules) {
&Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
- # Output display table for rule files
- print "<table width='100%'><tr><td valign='top'><table>";
- print "<form method='post'>";
+ print"<form method='POST' action='$ENV{'SCRIPT_NAME'}'>\n";
- # Local vars
- my $ruledisplaycnt = 1;
- my $rulecnt = keys %snortrules;
- $rulecnt++;
- $rulecnt = $rulecnt / 2;
+ # Output display table for rule files
+ print "<table width='100%'>\n";
# Loop over each rule file
- foreach my $rulefile (sort keys(%snortrules)) {
+ foreach my $rulefile (sort keys(%idsrules)) {
my $rulechecked = '';
- # Hide inkompatible Block rules
- if ($rulefile =~'-BLOCK.rules') {
- next;
- }
-
- # Check if reached half-way through rule file rules to start new column
- if ($ruledisplaycnt > $rulecnt) {
- print "</table></td><td valign='top'><table>";
- $ruledisplaycnt = 0;
- }
-
# Check if rule file is enabled
- if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
+ if ($idsrules{$rulefile}{'Rulefile'}{'State'} eq 'on') {
$rulechecked = 'CHECKED';
}
- # 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";
- }
- }
- }
- }
-
- # Strip out extra & & ? from rulefilelink
- $rulefilelink =~ s/^\?\&/\?/i;
+ # Convert rulefile name into category name.
+ my $categoryname = &_rulefile_to_category($rulefile);
- # Check for a single '?' and replace with page for proper link display
- if ($rulefilelink eq '?') {
- $rulefilelink = "ids.cgi";
- }
+ # Table and rows for the rule files.
+ print"<tr>\n";
+ print"<td class='base' width='5%'>\n";
+ print"<input type='checkbox' name='$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('$categoryname')\">SHOW</a>\n";
+ print"</td>\n";
+ print"</tr>\n";
- # Output rule file name and checkbox
- print "<tr><td class='base' valign='top'><input type='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <a href='$rulefilelink'>$rulefile</a></td></tr>";
- print "<tr><td class='base' valign='top'>";
+ # Rows which will be hidden per default and will contain the single rules.
+ print"<tr style='display:none' id='$categoryname'>\n";
+ print"<td colspan='3'>\n";
- # Check for empty 'Description'
- if ($snortrules{$rulefile}{'Description'} eq '') {
- print "<table width='100%'><tr><td class='base'>No description available</td></tr>";
- } else {
- # Output rule file 'Description'
- print "<table width='100%'><tr><td class='base'>$snortrules{$rulefile}{'Description'}</td></tr>";
- }
+ # Local vars
+ my $lines;
+ my $rows;
+ my $col;
- # Check for display flag
- if ($displayrulefilerules) {
- # Rule file definition rule display
- print "<tr><td class='base' valign='top'><table border='0'><tr>";
+ # New table for the single rules.
+ print "<table width='100%'>\n";
+ # Loop over rule file rules
+ foreach my $sid (sort {$a <=> $b} keys(%{$idsrules{$rulefile}})) {
# 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;
- }
+ my $ruledefchecked = '';
- # Check for rules state
- if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
- $ruledefchecked = 'CHECKED';
- }
+ # Skip rulefile itself.
+ next if ($sid eq "Rulefile");
- # 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'}{$ruledef}{'Description'}</td>";
+ # If 2 rules have been displayed, start a new row
+ if (($lines % 2) == 0) {
+ print "</tr><tr>\n";
- # Increment count
- $ruledefdisplaycnt++;
+ # Increase rows by once.
+ $rows++;
}
- # If do not have second rule for row, create empty cell
- if (($ruledefdisplaycnt % 2) != 0) {
- print "<td class='base'></td>";
+ # Colour lines.
+ if ($rows % 2) {
+ $col="bgcolor='$color{'color20'}'";
+ } else {
+ $col="bgcolor='$color{'color22'}'";
}
- # Close display table
- print "</tr></table></td></tr>";
- }
+ # Set rule state
+ if ($idsrules{$rulefile}{$sid}{'State'} eq 'on') {
+ $ruledefchecked = 'CHECKED';
+ }
- # Close display table
- print "</table>";
+ # 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%' $col>$idsrules{$rulefile}{$sid}{'Description'}</td>";
- # Increment ruledisplaycnt
- $ruledisplaycnt++;
+ # Increment rule count
+ $lines++;
+ }
+
+ # If do not have a second rule for row, create empty cell
+ if (($lines % 2) != 0) {
+ print "<td class='base'></td>";
+ }
+
+ # Close display table
+ print "</tr></table></td></tr>";
}
- print "</td></tr></table></td></tr></table>";
- print <<END
+
+ # Close display table
+ print "</table>";
+
+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>
&Header::closebox();
}
-####################### End added for snort rules control #################################
&Header::closebigbox();
&Header::closepage();
-sub downloadrulesfile {
- my $peer;
- my $peerport;
+#
+## A function to display a notice, to lock the webpage and
+## tell the user which action currently will be performed.
+#
+sub working_notice ($) {
+ my ($message) = @_;
+
+ &Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
+ &Header::openbigbox('100%', 'left', '', $errormessage);
+ &Header::openbox( 'Waiting', 1,);
+ print <<END;
+ <table>
+ <tr>
+ <td><img src='/images/indicator.gif' alt='$Lang::tr{'aktiv'}' /></td>
+ <td>$message</td>
+ </tr>
+ </table>
+END
+ &Header::closebox();
+ &Header::closebigbox();
+ &Header::closepage();
+}
- unlink("/var/tmp/log");
+#
+## A tiny function to perform a reload of the webpage after one second.
+#
+sub reload () {
+ print "<meta http-equiv='refresh' content='1'>\n";
- unless (-e "${General::swroot}/red/active") {
- $errormessage = $Lang::tr{'could not download latest updates'};
- return undef;
+ # Stop the script.
+ exit;
+}
+
+#
+## Private function to read-in and parse rules of a given rulefile.
+#
+## The given file will be read, parsed and all valid rules will be stored by ID,
+## message/description and it's state in the idsrules hash.
+#
+sub readrulesfile ($) {
+ my $rulefile = shift;
+
+ # Open rule file and read in contents
+ open(RULEFILE, "$IDS::rulespath/$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 idsrules hash.
+ $idsrules{$rulefile}{$sid}{'Description'} = $msg;
+
+ # Grab status of the rule. Check if ruleline starts with a "dash".
+ if ($line =~ /^\#/) {
+ # If yes, the rule is disabled.
+ $idsrules{$rulefile}{$sid}{'State'} = "off";
+ } else {
+ # Otherwise the rule is enabled.
+ $idsrules{$rulefile}{$sid}{'State'} = "on";
+ }
+ }
+ }
+ }
+}
+
+#
+## Function to get the used memory of a given process-id.
+#
+sub get_memory_usage($) {
+ my ($pid) = @_;
+
+ my $memory = 0;
+
+ # Try to open the status file for the given process-id on the pseudo
+ # file system proc.
+ if (open(FILE, "/proc/$pid/status")) {
+ # Loop through the entire file.
+ while (<FILE>) {
+ # Splitt current line content and store them into variables.
+ my ($key, $value) = split(":", $_, 2);
+
+ # Check if the current key is the one which contains the memory usage.
+ # The wanted one is VmRSS which contains the Real-memory (resident set)
+ # of the entire process.
+ if ($key eq "VmRSS") {
+ # Found the memory usage add it to the memory variable.
+ $memory += $value;
+
+ # Break the loop.
+ last;
+ }
+ }
+
+ # Close file handle.
+ close(FILE);
+
+ # Return memory usage.
+ return $memory;
}
- my %proxysettings=();
- &General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
+ # If the file could not be open, return nothing.
+ return;
+}
- if ($_=$proxysettings{'UPSTREAM_PROXY'}) {
- ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/);
+#
+## Function to generate the rules file with whitelisted addresses.
+#
+sub GenerateIgnoreFile() {
+ my %ignored = ();
+
+ # SID range 1000000-1999999 Reserved for Local Use
+ # Put your custom rules in this range to avoid conflicts
+ my $sid = 1500000;
+
+ # Read-in ignoredfile.
+ &General::readhasharray($IDS::ignored_file, \%ignored);
+
+ # Open ignorefile for writing.
+ open(FILE, ">$IDS::whitelist_file") or die "Could not write to $IDS::whitelist_file. $!\n";
+
+ # Config file header.
+ print FILE "# Autogenerated file.\n";
+ print FILE "# All user modifications will be overwritten.\n\n";
+
+ # Add all user defined addresses to the whitelist.
+ #
+ # Check if the hash contains any elements.
+ if (keys (%ignored)) {
+ # Loop through the entire hash and write the host/network
+ # and remark to the ignore file.
+ while ( (my $key) = each %ignored) {
+ my $address = $ignored{$key}[0];
+ my $remark = $ignored{$key}[1];
+ my $status = $ignored{$key}[2];
+
+ # Check if the status of the entry is "enabled".
+ if ($status eq "enabled") {
+ # Check if the address/network is valid.
+ if ((&General::validip($address)) || (&General::validipandmask($address))) {
+ # Write rule line to the file to pass any traffic from this IP
+ print FILE "pass ip $address any -> any any (msg:\"pass all traffic from/to $address\"\; sid:$sid\;)\n";
+
+ # Increment sid.
+ $sid++;
+ }
+ }
+ }
}
- if ($peer) {
- system("wget -r --proxy=on --proxy-user=$proxysettings{'UPSTREAM_USER'} --proxy-passwd=$proxysettings{'UPSTREAM_PASSWORD'} -e http_proxy=http://$peer:$peerport/ -e https_proxy=http://$peer:$peerport/ -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url");
- } else {
- system("wget -r -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url");
+ close(FILE);
+}
+
+#
+## Function to read-in the given enabled or disables sids file.
+#
+sub read_enabled_disabled_sids_file($) {
+ my ($file) = @_;
+
+ # Temporary hash to store the sids and their state. It will be
+ # returned at the end of this function.
+ my %temphash;
+
+ # Open the given filename.
+ open(FILE, "$file") or die "Could not open $file. $!\n";
+
+ # Loop through the file.
+ while(<FILE>) {
+ # Remove newlines.
+ chomp $_;
+
+ # Skip blank lines.
+ next if ($_ =~ /^\s*$/);
+
+ # Skip coments.
+ next if ($_ =~ /^\#/);
+
+ # Splitt line into sid and state part.
+ my ($state, $sid) = split(" ", $_);
+
+ # Skip line if the sid is not numeric.
+ next unless ($sid =~ /\d+/ );
+
+ # Check if the sid was enabled.
+ if ($state eq "enablesid") {
+ # Add the sid and its state as enabled to the temporary hash.
+ $temphash{$sid} = "enabled";
+ # Check if the sid was disabled.
+ } elsif ($state eq "disablesid") {
+ # Add the sid and its state as disabled to the temporary hash.
+ $temphash{$sid} = "disabled";
+ # Invalid state - skip the current sid and state.
+ } else {
+ next;
+ }
}
+
+ # Close filehandle.
+ close(FILE);
+
+ # Return the hash.
+ return %temphash;
+}
+
+#
+## Private function to convert a given rulefile to a category name.
+## ( No file extension anymore and if the name contained a dot, it
+## would be replaced by a underline sign.)
+#
+sub _rulefile_to_category($) {
+ my ($filename) = @_;
+
+ # Splitt the filename into single chunks and store them in a
+ # temorary array.
+ my @parts = split(/\./, $filename);
+
+ # Return / Remove last element of the temporary array.
+ # This removes the file extension.
+ pop @parts;
+
+ # Join together the single elements of the temporary array.
+ # If these are more than one, use a "underline" for joining.
+ my $category = join '_', @parts;
+
+ # Return the converted filename.
+ return $category;
}
projects / ipfire-2.x.git / commitdiff
