###############################################################################
# #
# IPFire.org - A linux based firewall #
-# Copyright (C) 2007-2018 IPFire Team <info@ipfire.org> #
+# Copyright (C) 2007-2020 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 #
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);
# the list of zones in an array.
my @network_zones = &IDS::get_available_network_zones();
-# File where the used rulefiles are stored.
-my $idsusedrulefilesfile = "$IDS::settingsdir/suricata-used-rulefiles.yaml";
-
-# File where the addresses of the homenet are stored.
-my $idshomenetfile = "$IDS::settingsdir/suricata-homenet.yaml";
-
-# File which contains the enabled sids.
-my $enabled_sids_file = "$IDS::settingsdir/oinkmaster-enabled-sids.conf";
-
-# File which contains the disabled sids.
-my $disabled_sids_file = "$IDS::settingsdir/oinkmaster-disabled-sids.conf";
-
-# File which contains wheater the rules should be changed.
-my $modify_sids_file = "$IDS::settingsdir/oinkmaster-modify-sids.conf";
+# Check if openvpn is started and add it to the array of network zones.
+if ( -e "/var/run/openvpn.pid") {
+ push(@network_zones, "ovpn");
+}
my $errormessage;
-# Create oinkmaster related files if they does not exist yet.
-unless (-f "$enabled_sids_file") { &IDS::create_empty_file($enabled_sids_file); }
-unless (-f "$disabled_sids_file") { &IDS::create_empty_file($disabled_sids_file); }
-unless (-f "$modify_sids_file") { &IDS::create_empty_file($modify_sids_file); }
+# 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,
+ 'ovpn' => $Header::colourovpn
+);
&Header::showhttpheaders();
#Get GUI values
&Header::getcgihash(\%cgiparams);
+## Add/edit an entry to the ignore file.
+#
+if (($cgiparams{'WHITELIST'} eq $Lang::tr{'add'}) || ($cgiparams{'WHITELIST'} eq $Lang::tr{'update'})) {
+
+ # Check if any input has been performed.
+ if ($cgiparams{'IGNORE_ENTRY_ADDRESS'} ne '') {
+
+ # 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'}";
+ }
+
+ # Go further if there was no error.
+ if ($errormessage eq '') {
+ my %ignored = ();
+ my $id;
+ my $status;
+
+ # Assign hash values.
+ my $new_entry_address = $cgiparams{'IGNORE_ENTRY_ADDRESS'};
+ my $new_entry_remark = $cgiparams{'IGNORE_ENTRY_REMARK'};
+
+ # Read-in ignoredfile.
+ &General::readhasharray($IDS::ignored_file, \%ignored);
+
+ # 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 = $cgiparams{'ID'};
+
+ # Undef the given ID.
+ undef($cgiparams{'ID'});
+
+ # 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;
+
+ # Reverse the key array.
+ my @reversed = reverse(@keys);
+
+ # Obtain the last used id.
+ my $last_id = @reversed[0];
+
+ # 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.
+ &IDS::generate_ignore_file();
+ }
+
+ # 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);
+
+ # Grab the configured status of the corresponding entry.
+ my $status = $ignored{$id}[2];
+
+ # Switch the status.
+ if ($status eq "disabled") {
+ $status = "enabled";
+ } else {
+ $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.
+ &IDS::generate_ignore_file();
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
+ }
+ }
+
+## 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.
+ &IDS::generate_ignore_file();
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
+ }
+}
+
+# Check if the page is locked, in this case, the ids_page_lock_file exists.
+if (-e $IDS::ids_page_lock_file) {
+ # Lock the webpage and print notice about autoupgrade of the ruleset
+ # is in progess.
+ &working_notice("$Lang::tr{'ids ruleset autoupdate in progress'}");
+
+ # Loop and check if the file still exists.
+ while(-e $IDS::ids_page_lock_file) {
+ # Sleep for a second and re-check.
+ sleep 1;
+ }
+
+ # Page has been unlocked, perform a reload.
+ &reload();
+}
+
# Check if any error has been stored.
if (-e $IDS::storederrorfile) {
# Open file to read in the stored error message.
unlink($IDS::storederrorfile);
}
-
-## Grab all available snort rules and store them in the idsrules hash.
+## Grab all available rules and store them in the idsrules hash.
#
-# Open snort rules directory and do a directory listing.
+# Open rules directory and do a directory listing.
opendir(DIR, $IDS::rulespath) or die $!;
# Loop through the direcory.
while (my $file = readdir(DIR)) {
# Ignore files which are not read-able.
next unless (-R "$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");
# Gather used rulefiles.
#
# Check if the file for activated rulefiles is not empty.
-if(-f $idsusedrulefilesfile) {
+if(-f $IDS::used_rulefiles_file) {
# Open the file for used rulefile and read-in content.
- open(FILE, $idsusedrulefilesfile) or die "Could not open $idsusedrulefilesfile. $!\n";
+ open(FILE, $IDS::used_rulefiles_file) or die "Could not open $IDS::used_rulefiles_file. $!\n";
# Read-in content.
my @lines = <FILE>;
if ($line =~ /.*- (.*)/) {
my $rulefile = $1;
- # Add the rulefile to the %idsrules hash.
- $idsrules{$rulefile}{'Rulefile'}{'State'} = "on";
+ # 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";
+ }
}
}
}
+# Save ruleset configuration.
+if ($cgiparams{'RULESET'} eq $Lang::tr{'save'}) {
+ my %oldsettings;
+ my %rulesetsources;
+
+ # Read-in current (old) IDS settings.
+ &General::readhash("$IDS::rules_settings_file", \%oldsettings);
+
+ # Get all available ruleset locations.
+ &General::readhash("$IDS::rulesetsourcesfile", \%rulesetsources);
+
+ # Prevent form name from been stored in conf file.
+ delete $cgiparams{'RULESET'};
+
+ # Grab the URL based on the choosen vendor.
+ my $url = $rulesetsources{$cgiparams{'RULES'}};
+
+ # Check if the choosen vendor (URL) requires an subscription/oinkcode.
+ if ($url =~ /\<oinkcode\>/ ) {
+ # Check if an subscription/oinkcode has been provided.
+ if ($cgiparams{'OINKCODE'}) {
+ # Check if the oinkcode contains unallowed chars.
+ unless ($cgiparams{'OINKCODE'} =~ /^[a-z0-9]+$/) {
+ $errormessage = $Lang::tr{'invalid input for oink code'};
+ }
+ } else {
+ # Print an error message, that an subsription/oinkcode is required for this
+ # vendor.
+ $errormessage = $Lang::tr{'ids oinkcode required'};
+ }
+ }
+
+ # Go on if there are no error messages.
+ if (!$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", $cgiparams{'AUTOUPDATE_INTERVAL'});
+ }
+
+ # Check if a ruleset is present - if not or the source has been changed download it.
+ if((! %idsrules) || ($oldsettings{'RULES'} ne $cgiparams{'RULES'})) {
+ # Check if the red device is active.
+ unless (-e "${General::swroot}/red/active") {
+ $errormessage = "$Lang::tr{'could not download latest updates'} - $Lang::tr{'system is offline'}";
+ }
+
+ # Check if enough free disk space is availabe.
+ if(&IDS::checkdiskspace()) {
+ $errormessage = "$Lang::tr{'not enough disk space'}";
+ }
+
+ # Check if any errors happend.
+ unless ($errormessage) {
+ # Lock the webpage and print notice about downloading
+ # a new ruleset.
+ &working_notice("$Lang::tr{'ids working'}");
+
+ # Write the modify sid's file and pass the taken ruleaction.
+ &IDS::write_modify_sids_file();
+
+ # 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);
+ } else {
+ # Call subfunction to launch oinkmaster.
+ &IDS::oinkmaster();
+ }
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to stop the IDS - because of the changed
+ # ruleset - the use has to configure it before suricata can be
+ # used again.
+ &IDS::call_suricatactrl("stop");
+ }
+
+ # Perform a reload of the page.
+ &reload();
+ }
+ }
+ }
+
# Save ruleset.
-if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
+} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'ids apply'}) {
# 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;
+ # Store if a restart of suricata is required.
+ my $suricata_restart_required;
+
# Loop through the hash of idsrules.
foreach my $rulefile(keys %idsrules) {
+ # Check if the state of the rulefile has been changed.
+ unless ($cgiparams{$rulefile} eq $idsrules{$rulefile}{'Rulefile'}{'State'}) {
+ # A restart of suricata is required to apply the changes of the used rulefiles.
+ $suricata_restart_required = 1;
+ }
+
# Check if the rulefile is enabled.
if ($cgiparams{$rulefile} eq "on") {
# Add rulefile to the array of enabled rulefiles.
# This will be done by calling the read_enabled_disabled_sids_file function two times
# and merge the returned hashes together into the enabled_disabled_sids hash.
%enabled_disabled_sids = (
- &read_enabled_disabled_sids_file($disabled_sids_file),
- &read_enabled_disabled_sids_file($enabled_sids_file));
+ &read_enabled_disabled_sids_file($IDS::disabled_sids_file),
+ &read_enabled_disabled_sids_file($IDS::enabled_sids_file));
# Loop through the hash of idsrules.
foreach my $rulefile (keys %idsrules) {
}
# Open enabled sid's file for writing.
- open(ENABLED_FILE, ">$enabled_sids_file") or die "Could not write to $enabled_sids_file. $!\n";
+ open(ENABLED_FILE, ">$IDS::enabled_sids_file") or die "Could not write to $IDS::enabled_sids_file. $!\n";
# Open disabled sid's file for writing.
- open(DISABLED_FILE, ">$disabled_sids_file") or die "Could not write to $disabled_sids_file. $!\n";
+ open(DISABLED_FILE, ">$IDS::disabled_sids_file") or die "Could not write to $IDS::disabled_sids_file. $!\n";
# Write header to the files.
print ENABLED_FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
# Close file for disabled_sids after writing.
close(DISABLED_FILE);
- # Open file for used rulefiles.
- open (FILE, ">$idsusedrulefilesfile") or die "Could not write to $idsusedrulefilesfile. $!\n";
-
- # Write yaml header to the file.
- print FILE "%YAML 1.1\n";
- print FILE "---\n\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 " - $file\n";
- }
- }
-
- # Close file after writing.
- close(FILE);
+ # Call function to generate and write the used rulefiles file.
+ &IDS::write_used_rulefiles_file(@enabled_rulefiles);
# Lock the webpage and print message.
- &working_notice("$Lang::tr{'snort working'}");
+ &working_notice("$Lang::tr{'ids apply ruleset changes'}");
# Call oinkmaster to alter the ruleset.
&IDS::oinkmaster();
# Check if the IDS is running.
if(&IDS::ids_is_running()) {
- # Call suricatactrl to perform a reload.
- &IDS::call_suricatactrl("reload");
+ # Check if a restart of suricata is required.
+ if ($suricata_restart_required) {
+ # Call suricatactrl to perform the restart.
+ &IDS::call_suricatactrl("restart");
+ } else {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
+ }
}
# Reload page.
&reload();
# Download new ruleset.
-} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'download new ruleset'}) {
+} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'update ruleset'}) {
# Check if the red device is active.
unless (-e "${General::swroot}/red/active") {
- $errormessage = $Lang::tr{'could not download latest updates'};
+ $errormessage = "$Lang::tr{'could not download latest updates'} - $Lang::tr{'system is offline'}";
}
# Check if enought free disk space is availabe.
unless ($errormessage) {
# Lock the webpage and print notice about downloading
# a new ruleset.
- &working_notice("$Lang::tr{'snort working'}");
+ &working_notice("$Lang::tr{'ids download new ruleset'}");
# Call subfunction to download the ruleset.
if(&IDS::downloadruleset()) {
&reload();
}
}
-# Save snort settings.
+# Save IDS 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::settingsdir/settings", \%oldidssettings);
+ &General::readhash("$IDS::ids_settings_file", \%oldidssettings);
# Prevent form name from been stored in conf file.
delete $cgiparams{'IDS'};
- # Check if an oinkcode has been provided.
- if ($cgiparams{'OINKCODE'}) {
- # Check if the oinkcode contains unallowed chars.
- unless ($cgiparams{'OINKCODE'} =~ /^[a-z0-9]+$/) {
- $errormessage = $Lang::tr{'invalid input for oink code'};
+ # Check if the IDS should be enabled.
+ if ($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("$IDS::settingsdir/settings", \%cgiparams);
+ &General::writehash("$IDS::ids_settings_file", \%cgiparams);
}
# Generate file to store the home net.
- &generate_home_net_file();
+ &IDS::generate_home_net_file();
- # Open modify sid's file for writing.
- open(FILE, ">$modify_sids_file") or die "Could not write to $modify_sids_file. $!\n";
+ # Generate file to the store the DNS servers.
+ &IDS::generate_dns_servers_file();
- # Write file header.
- print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+ # Generate file to store the HTTP ports.
+ &IDS::generate_http_ports_file();
- # Check if the configured runmode is IPS.
- if ($cgiparams{'RUN_MODE'} eq 'IPS') {
- # Tell oinkmaster to switch all rules from alert to drop.
- print FILE "modifysid \* \"alert\" \| \"drop\"\n";
- }
+ # Write the modify sid's file and pass the taken ruleaction.
+ &IDS::write_modify_sids_file();
- # Close file handle.
- close(FILE);
-
- # Check if the runmode has been changed.
- if($cgiparams{'RUN_MODE'} ne $oldidssettings{'RUN_MODE'}) {
+ # Check if "MONITOR_TRAFFIC_ONLY" has been changed.
+ if($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'}");
+ &working_notice("$Lang::tr{'ids working'}");
# Call oinkmaster to alter the ruleset.
&IDS::oinkmaster();
}
}
-# Read-in idssettings
-&General::readhash("$IDS::settingsdir/settings", \%idssettings);
+# Read-in idssettings and rulesetsettings
+&General::readhash("$IDS::ids_settings_file", \%idssettings);
+&General::readhash("$IDS::rules_settings_file", \%rulessettings);
-# If the runmode has not been configured yet, set default value.
-unless(exists($idssettings{'RUN_MODE'})) {
- # Set default to IPS.
- $idssettings{'RUN_MODE'} = 'IPS';
+# If no autoupdate intervall has been configured yet, set default value.
+unless(exists($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'";
-$checked{'RUN_MODE'}{'IDS'} = '';
-$checked{'RUN_MODE'}{'IPS'} = '';
-$checked{'RUN_MODE'}{$idssettings{'RUN_MODE'}} = "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'}{$idssettings{'RULES'}} = "selected='selected'";
+$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($Lang::tr{'intrusion detection system'}, 1, '');
### Java Script ###
+print"<script>\n";
+
+# Java script variable declaration for show and hide.
+print"var show = \"$Lang::tr{'ids show'}\"\;\n";
+print"var hide = \"$Lang::tr{'ids hide'}\"\;\n";
+
print <<END
-<script>
+ // Java Script function to show/hide the text input field for
+ // Oinkcode/Subscription code.
+ var update_code = function() {
+ if(\$('#RULES').val() == 'registered') {
+ \$('#code').show();
+ } else if(\$('#RULES').val() == 'subscripted') {
+ \$('#code').show();
+ } else if(\$('#RULES').val() == 'emerging_pro') {
+ \$('#code').show();
+ } else {
+ \$('#code').hide();
+ }
+ };
+
+ // JQuery function to call corresponding function when
+ // the ruleset is changed or the page is loaded for showing/hiding
+ // the code area.
+ \$(document).ready(function() {
+ \$('#RULES').change(update_code);
+ update_code();
+ });
+
// Tiny java script function to show/hide the rules
// of a given category.
function showhide(tblname) {
\$("#" + tblname).toggle();
+
+ // Get current content of the span element.
+ var content = document.getElementById("span_" + tblname);
+
+ if (content.innerHTML === show) {
+ content.innerHTML = hide;
+ } else {
+ content.innerHTML = show;
+ }
}
</script>
END
</table>
END
}
-&Header::closebox();
-# Draw elements for IDS configuration.
-&Header::openbox('100%', 'center', $Lang::tr{'settings'});
+# Only show this area, if a ruleset is present.
+if (%idsrules) {
-my $rulesdate;
+ print <<END
-# Check if a ruleset allready has been downloaded.
-if ( -f "$IDS::rulestarball"){
- # Call stat on the filename to obtain detailed information.
- my @Info = stat("$IDS::rulestarball");
+ <br><br><h2>$Lang::tr{'settings'}</h2>
- # Grab details about the creation time.
- $rulesdate = localtime($Info[9]);
-}
+ <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'}> $Lang::tr{'ids enable'}
+ </td>
-print <<END
-<form method='post' action='$ENV{'SCRIPT_NAME'}'>
- <table width='100%' border='0'>
- <tr>
- <td class='base' colspan='4'>
- <input type='checkbox' name='ENABLE_IDS' $checked{'ENABLE_IDS'}{'on'}>$Lang::tr{'ids activate'} $Lang::tr{'intrusion detection system'}
+ <td class='base' colspan='2'>
+ <input type='checkbox' name='MONITOR_TRAFFIC_ONLY' $checked{'MONITOR_TRAFFIC_ONLY'}{'on'}> $Lang::tr{'ids monitor traffic only'}
</td>
- </tr>
+ </tr>
- <tr>
- <td colspan='4'><br><br></td>
- </tr>
+ <tr>
+ <td><br><br></td>
+ <td><br><br></td>
+ <td><br><br></td>
+ <td><br><br></td>
+ </tr>
- <tr>
- <td class='base' colspan='4'><b>$Lang::tr{'runmode'}</b></td>
- </tr>
+ <tr>
+ <td colspan='4'><b>$Lang::tr{'ids monitored interfaces'}</b><br></td>
+ </tr>
- <tr>
- <td class='base' colspan='4'>
- <input type='radio' name='RUN_MODE' value='IDS' $checked{'RUN_MODE'}{'IDS'}>$Lang::tr{'intrusion detection system2'}    
- <input type='radio' name='RUN_MODE' value='IPS' $checked{'RUN_MODE'}{'IPS'}>$Lang::tr{'intrusion prevention system'}
- </td>
- </tr>
+ <tr>
+END
+;
- <tr>
- <td colspan='4'><br></td>
- </tr>
+ # Loop through the array of available networks and print config options.
+ foreach my $zone (@network_zones) {
+ my $checked_input;
+ my $checked_forward;
- <tr>
- <td colspan='4'><b>$Lang::tr{'ids traffic analyze'}</b><br></td>
- </tr>
+ # Convert current zone name to upper case.
+ my $zone_upper = uc($zone);
- <tr>
-END
-;
+ # Set zone name.
+ my $zone_name = $zone;
-# Loop through the array of available networks and print config options.
-foreach my $zone (@network_zones) {
- my $checked_input;
- my $checked_forward;
+ # Dirty hack to get the correct language string for the red zone.
+ if ($zone eq "red") {
+ $zone_name = "red1";
+ }
- # Convert current zone name to upper case.
- my $zone_upper = uc($zone);
+ # Grab checkbox status from settings hash.
+ if ($idssettings{"ENABLE_IDS_$zone_upper"} eq "on") {
+ $checked_input = "checked = 'checked'";
+ }
- # Grab checkbox status from settings hash.
- if ($idssettings{"ENABLE_IDS_$zone_upper"} eq "on") {
- $checked_input = "checked = 'checked'";
+ print "<td class='base' width='20%'>\n";
+ print "<input type='checkbox' name='ENABLE_IDS_$zone_upper' $checked_input>\n";
+ print " $Lang::tr{'enabled on'}<font color='$colourhash{$zone}'> $Lang::tr{$zone_name}</font>\n";
+ print "</td>\n";
}
- print "<td class='base' width='25%'>\n";
- print "<input type='checkbox' name='ENABLE_IDS_$zone_upper' $checked_input>$Lang::tr{'enabled on'} $Lang::tr{$zone}\n";
- print "</td>\n";
+print <<END
+ </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
+;
+
}
-print <<END
- </tr>
+&Header::closebox();
- <tr>
- <td colspan='4'><br><br></td>
- </tr>
+# 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 colspan='4'><b>$Lang::tr{'ids rules update'}</b></td>
+ <td><b>$Lang::tr{'ids rules update'}</b></td>
+ <td><b>$Lang::tr{'ids automatic rules update'}</b></td>
</tr>
<tr>
- <td colspan='4'><select name='RULES'>
- <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
+ <td><select name='RULES' id='RULES'>
<option value='emerging' $selected{'RULES'}{'emerging'} >$Lang::tr{'emerging rules'}</option>
+ <option value='emerging_pro' $selected{'RULES'}{'emerging_pro'} >$Lang::tr{'emerging pro 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 colspan='4'>
- <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>
+ <select name='AUTOUPDATE_INTERVAL'>
+ <option value='off' $selected{'AUTOUPDATE_INTERVAL'}{'off'} >- $Lang::tr{'Disabled'} -</option>
+ <option value='daily' $selected{'AUTOUPDATE_INTERVAL'}{'daily'} >$Lang::tr{'Daily'}</option>
+ <option value='weekly' $selected{'AUTOUPDATE_INTERVAL'}{'weekly'} >$Lang::tr{'Weekly'}</option>
+ </select>
</td>
</tr>
<tr>
- <td colspan='4' nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$idssettings{'OINKCODE'}'></td>
+ <td colspan='2'><br><br></td>
+ </tr>
+
+ <tr style='display:none' id='code'>
+ <td colspan='2'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$rulessettings{'OINKCODE'}'></td>
</tr>
<tr>
- <td colspan='4' align='left'><br>
- <input type='submit' name='RULESET' value='$Lang::tr{'download new ruleset'}'> $Lang::tr{'updates installed'}: $rulesdate
+ <td> </td>
+
+ <td align='right'>
+END
+;
+ # Show the "Update Ruleset"-Button only if a ruleset has been downloaded yet and automatic updates are disabled.
+ if ((%idsrules) && ($rulessettings{'AUTOUPDATE_INTERVAL'} eq "off")) {
+ # Display button to update the ruleset.
+ print"<input type='submit' name='RULESET' value='$Lang::tr{'update ruleset'}'>\n";
+ }
+print <<END;
+ <input type='submit' name='RULESET' value='$Lang::tr{'save'}'>
</td>
</tr>
</table>
+</form>
+END
+;
+
+&Header::closebox();
- <br><br>
+#
+# Whitelist / Ignorelist
+#
+&Header::openbox('100%', 'center', $Lang::tr{'ids ignored hosts'});
+print <<END;
<table width='100%'>
<tr>
- <td align='right'><input type='submit' name='IDS' value='$Lang::tr{'save'}' /></td>
+ <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>
- </table>
-</form>
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'}'";
+ }
-&Header::closebox();
+ # Choose icon for the checkbox.
+ my $gif;
+ my $gdesc;
-&Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
- print"<form method='POST' action='$ENV{'SCRIPT_NAME'}'>\n";
+ # 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'};
+ }
- # Output display table for rule files
- print "<table width='100%'>\n";
+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";
+ }
- # Local variable required for java script to show/hide
- # rules of a rulefile.
- my $rulesetcount = 1;
+ print "</table>\n";
- # Loop over each rule file
- foreach my $rulefile (sort keys(%idsrules)) {
- my $rulechecked = '';
+ # Section to add new elements or edit existing ones.
+print <<END;
+ <br>
+ <hr>
+ <br>
- # Check if rule file is enabled
- if ($idsrules{$rulefile}{'Rulefile'}{'State'} eq 'on') {
- $rulechecked = 'CHECKED';
+ <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";
}
- # 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 $lines;
- my $rows;
- my $col;
-
- # New table for the single rules.
+print <<END;
+ <form method='post' action='$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();
+
+# Only show the section for configuring the ruleset if one is present.
+if (%idsrules) {
+ # Load neccessary perl modules for file stat and to format the timestamp.
+ use File::stat;
+ use POSIX qw( strftime );
+
+ # Call stat on the rulestarball.
+ my $stat = stat("$IDS::rulestarball");
+
+ # Get timestamp the file creation.
+ my $mtime = $stat->mtime;
+
+ # Convert into human read-able format.
+ my $rulesdate = strftime('%Y-%m-%d %H:%M:%S', localtime($mtime));
+
+ &Header::openbox('100%', 'LEFT', "$Lang::tr{'intrusion detection system rules'} ($rulesdate)" );
+
+ print"<form method='POST' action='$ENV{'SCRIPT_NAME'}'>\n";
+
+ # Output display table for rule files
print "<table width='100%'>\n";
- # Loop over rule file rules
- foreach my $sid (sort {$a <=> $b} keys(%{$idsrules{$rulefile}})) {
+ # Loop over each rule file
+ foreach my $rulefile (sort keys(%idsrules)) {
+ my $rulechecked = '';
+
+ # Check if rule file is enabled
+ if ($idsrules{$rulefile}{'Rulefile'}{'State'} eq 'on') {
+ $rulechecked = 'CHECKED';
+ }
+
+ # Convert rulefile name into category name.
+ my $categoryname = &_rulefile_to_category($rulefile);
+
+ # 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('$categoryname')\"><span id='span_$categoryname'>$Lang::tr{'ids show'}</span></a>\n";
+ print"</td>\n";
+ print"</tr>\n";
+
+ # Rows which will be hidden per default and will contain the single rules.
+ print"<tr style='display:none' id='$categoryname'>\n";
+ print"<td colspan='3'>\n";
+
# Local vars
- my $ruledefchecked = '';
+ my $lines;
+ my $rows;
+ my $col;
- # Skip rulefile itself.
- next if ($sid eq "Rulefile");
+ # New table for the single rules.
+ print "<table width='100%'>\n";
- # If 2 rules have been displayed, start a new row
- if (($lines % 2) == 0) {
- print "</tr><tr>\n";
+ # Loop over rule file rules
+ foreach my $sid (sort {$a <=> $b} keys(%{$idsrules{$rulefile}})) {
+ # Local vars
+ my $ruledefchecked = '';
- # Increase rows by once.
- $rows++;
- }
+ # Skip rulefile itself.
+ next if ($sid eq "Rulefile");
- # Colour lines.
- if ($rows % 2) {
- $col="bgcolor='$color{'color20'}'";
- } else {
- $col="bgcolor='$color{'color22'}'";
- }
+ # If 2 rules have been displayed, start a new row
+ if (($lines % 2) == 0) {
+ print "</tr><tr>\n";
- # Set rule state
- if ($idsrules{$rulefile}{$sid}{'State'} eq 'on') {
- $ruledefchecked = 'CHECKED';
- }
+ # Increase rows by once.
+ $rows++;
+ }
- # 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>";
+ # Colour lines.
+ if ($rows % 2) {
+ $col="bgcolor='$color{'color20'}'";
+ } else {
+ $col="bgcolor='$color{'color22'}'";
+ }
- # Increment rule count
- $lines++;
- }
+ # Set rule state
+ if ($idsrules{$rulefile}{$sid}{'State'} eq 'on') {
+ $ruledefchecked = 'CHECKED';
+ }
- # If do not have a second rule for row, create empty cell
- if (($lines % 2) != 0) {
- print "<td class='base'></td>";
- }
+ # 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>";
- # Close display table
- print "</tr></table></td></tr>";
+ # Increment rule count
+ $lines++;
+ }
- # Finished whith the rule file, increase count.
- $rulesetcount++;
- }
+ # If do not have a second rule for row, create empty cell
+ if (($lines % 2) != 0) {
+ print "<td class='base'></td>";
+ }
- # Close display table
- print "</table>";
+ # Close display table
+ print "</tr></table></td></tr>";
+ }
+
+ # Close display table
+ print "</table>";
print <<END
<table width='100%'>
<tr>
- <td width='100%' align='right'><input type='submit' name='RULESET' value='$Lang::tr{'update'}'>
- <!-- space for future online help link -->
- </td>
+ <td width='100%' align='right'><input type='submit' name='RULESET' value='$Lang::tr{'ids apply'}'></td>
</tr>
</table>
</form>
END
;
-&Header::closebox();
+ &Header::closebox();
+}
+
&Header::closebigbox();
&Header::closepage();
}
}
}
- }
+ }
}
#
return;
}
-#
-## Function to generate the file which contains the home net information.
-#
-sub generate_home_net_file() {
- my %netsettings;
-
- # Read-in network settings.
- &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
-
- # Get available network zones.
- my @network_zones = &IDS::get_available_network_zones();
-
- # Temporary array to store network address and prefix of the configured
- # networks.
- my @networks;
-
- # Loop through the array of available network zones.
- foreach my $zone (@network_zones) {
- # Skip the red network - It never can be part to the home_net!
- next if($zone eq "red");
-
- # Convert current zone name into upper case.
- $zone = uc($zone);
-
- # Generate key to access the required data from the netsettings hash.
- my $zone_netaddress = $zone . "_NETADDRESS";
- my $zone_netmask = $zone . "_NETMASK";
-
- # Obtain the settings from the netsettings hash.
- my $netaddress = $netsettings{$zone_netaddress};
- my $netmask = $netsettings{$zone_netmask};
-
- # Convert the subnetmask into prefix notation.
- my $prefix = &Network::convert_netmask2prefix($netmask);
-
- # Generate full network string.
- my $network = join("/", $netaddress,$prefix);
-
- # Check if the network is valid.
- if(&Network::check_subnet($network)) {
- # Add the generated network to the array of networks.
- push(@networks, $network);
- }
- }
-
- # Format home net declaration.
- my $line = "\"\[";
-
- # Loop through the array of networks.
- foreach my $network (@networks) {
- # Add the network to the line.
- $line = "$line" . "$network";
-
- # Check if the current network was the last in the array.
- if ($network eq $networks[-1]) {
- # Close the line.
- $line = "$line" . "\]\"";
- } else {
- # Add "," for the next network.
- $line = "$line" . "\,";
- }
- }
-
- # Open file to store the addresses of the home net.
- open(FILE, ">$idshomenetfile") or die "Could not open $idshomenetfile. $!\n";
-
- # Print yaml header.
- print FILE "%YAML 1.1\n";
- print FILE "---\n\n";
-
- # Print notice about autogenerated file.
- print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
-
- # Print the generated and required HOME_NET declaration to the file.
- print FILE "HOME_NET:\t$line\n";
-
- # Close file handle.
- close(FILE);
-
-}
-
#
## Function to read-in the given enabled or disables sids 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;
+}