# Location where all config and settings files are stored.
our $settingsdir = "${General::swroot}/suricata";
+# File where the used rulefiles are stored.
+our $used_rulefiles_file = "$settingsdir/suricata-used-rulefiles.yaml";
+
+# File where the addresses of the homenet are stored.
+our $homenet_file = "$settingsdir/suricata-homenet.yaml";
+
+# File which contains the enabled sids.
+our $enabled_sids_file = "$settingsdir/oinkmaster-enabled-sids.conf";
+
+# File which contains the disabled sids.
+our $disabled_sids_file = "$settingsdir/oinkmaster-disabled-sids.conf";
+
+# File which contains wheater the rules should be changed.
+our $modify_sids_file = "$settingsdir/oinkmaster-modify-sids.conf";
+
+# File which stores the configured IPS settings.
+our $ids_settings_file = "$settingsdir/settings";
+
+# File which stores the configured rules-settings.
+our $rules_settings_file = "$settingsdir/rules-settings";
+
+# File which stores the configured settings for whitelisted addresses.
+our $ignored_file = "$settingsdir/ignored";
+
# Location and name of the tarball which contains the ruleset.
our $rulestarball = "/var/tmp/idsrules.tar.gz";
# Location where the rulefiles are stored.
our $rulespath = "/var/lib/suricata";
+# File which contains the rules to whitelist addresses on suricata.
+our $whitelist_file = "$rulespath/whitelist.rules";
+
# File which contains a list of all supported ruleset sources.
# (Sourcefire, Emergingthreads, etc..)
our $rulesetsourcesfile = "$settingsdir/ruleset-sources";
# Array with supported cron intervals.
my @cron_intervals = ('off', 'daily', 'weekly' );
+#
+## Function to check and create all IDS related files, if the does not exist.
+#
+sub check_and_create_filelayout() {
+ # Check if the files exist and if not, create them.
+ unless (-f "$enabled_sids_file") { &create_empty_file($enabled_sids_file); }
+ unless (-f "$disabled_sids_file") { &create_empty_file($disabled_sids_file); }
+ unless (-f "$modify_sids_file") { &create_empty_file($modify_sids_file); }
+ unless (-f "$used_rulefiles_file") { &create_empty_file($used_rulefiles_file); }
+ unless (-f "$ids_settings_file") { &create_empty_file($ids_settings_file); }
+ unless (-f "$rules_settings_file") { &create_empty_file($rules_settings_file); }
+ unless (-f "$ignored_file") { &create_empty_file($ignored_file); }
+ unless (-f "$whitelist_file" ) { &create_empty_file($whitelist_file); }
+}
+
#
## Function for checking if at least 300MB of free disk space are available
## on the "/var" partition.
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 = &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, ">$homenet_file") or die "Could not open $homenet_file. $!\n";
+
+ # Print yaml header.
+ print FILE "%YAML 1.1\n";
+ print FILE "---\n\n";
+
+ # Print notice about autogenerated file.
+ print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+
+ # Print the generated and required HOME_NET declaration to the file.
+ print FILE "HOME_NET:\t$line\n";
+
+ # Close file handle.
+ close(FILE);
+}
+
+#
+## Function to generate and write the file for used rulefiles.
+#
+sub write_used_rulefiles_file(@) {
+ my @files = @_;
+
+ # Open file for used rulefiles.
+ open (FILE, ">$used_rulefiles_file") or die "Could not write to $used_rulefiles_file. $!\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";
+
+ # Allways use the whitelist.
+ print FILE " - whitelist.rules\n";
+
+ # Loop through the array of given files.
+ foreach my $file (@files) {
+ # Check if the given filename exists and write it to the file of used rulefiles.
+ if(-f "$rulespath/$file") {
+ print FILE " - $file\n";
+ }
+ }
+
+ # Close file after writing.
+ close(FILE);
+}
+
1;
# 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";
-
-# File which stores the configured IPS settings.
-my $idssettingsfile = "$IDS::settingsdir/settings";
-
-# File which stores the configured rules-settings.
-my $rulessettingsfile = "$IDS::settingsdir/rules-settings";
-
-# File which stores the configured settings for whitelisted addresses.
-my $ignoredfile = "$IDS::settingsdir/ignored";
-
-# File which contains the rules to whitelist addresses on suricata.
-my $whitelistfile = "$IDS::rulespath/whitelist.rules";
-
my $errormessage;
# Create files if they does not exist yet.
-unless (-f "$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($modify_sids_file); }
-unless (-f "$idsusedrulefilesfile") { &IDS::create_empty_file($idsusedrulefilesfile); }
-unless (-f "$idssettingsfile") { &IDS::create_empty_file($idssettingsfile); }
-unless (-f "$rulessettingsfile") { &IDS::create_empty_file($rulessettingsfile); }
-unless (-f "$ignoredfile") { &IDS::create_empty_file($ignoredfile); }
-unless (-f "$whitelistfile" ) { &IDS::create_empty_file($whitelistfile); }
+&IDS::check_and_create_filelayout();
# Hash which contains the colour code of a network zone.
my %colourhash = (
my $new_entry_remark = $cgiparams{'IGNORE_ENTRY_REMARK'};
# Read-in ignoredfile.
- &General::readhasharray($ignoredfile, \%ignored);
+ &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'})) {
$ignored{$id} = ["$new_entry_address", "$new_entry_remark", "$status"];
# Write the changed ignored hash to the ignored file.
- &General::writehasharray($ignoredfile, \%ignored);
+ &General::writehasharray($IDS::ignored_file, \%ignored);
# Regenerate the ignore file.
&GenerateIgnoreFile();
undef($cgiparams{'ID'});
# Read-in ignoredfile.
- &General::readhasharray($ignoredfile, \%ignored);
+ &General::readhasharray($IDS::ignored_file, \%ignored);
# Grab the configured status of the corresponding entry.
my $status = $ignored{$id}[2];
$ignored{$id} = ["$ignored{$id}[0]", "$ignored{$id}[1]", "$status"];
# Write the changed ignored hash to the ignored file.
- &General::writehasharray($ignoredfile, \%ignored);
+ &General::writehasharray($IDS::ignored_file, \%ignored);
# Regenerate the ignore file.
&GenerateIgnoreFile();
my %ignored = ();
# Read-in ignoredfile.
- &General::readhasharray($ignoredfile, \%ignored);
+ &General::readhasharray($IDS::ignored_file, \%ignored);
# Drop entry from the hash.
delete($ignored{$cgiparams{'ID'}});
undef($cgiparams{'ID'});
# Write the changed ignored hash to the ignored file.
- &General::writehasharray($ignoredfile, \%ignored);
+ &General::writehasharray($IDS::ignored_file, \%ignored);
# Regenerate the ignore file.
&GenerateIgnoreFile();
# 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. $!\n";
# Read-in content.
my @lines = <FILE>;
my %oldsettings;
# Read-in current (old) IDS settings.
- &General::readhash("$rulessettingsfile", \%oldsettings);
+ &General::readhash("$IDS::rules_settings_file", \%oldsettings);
# Prevent form name from been stored in conf file.
delete $cgiparams{'RULESET'};
# Go on if there are no error messages.
if (!$errormessage) {
# Store settings into settings file.
- &General::writehash("$rulessettingsfile", \%cgiparams);
+ &General::writehash("$IDS::rules_settings_file", \%cgiparams);
}
# Check if the the automatic rule update hass been touched.
# 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";
-
- # Allways load the whitelist.
- print FILE " - whitelist.rules\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 them 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'}");
my $monitored_zones = 0;
# Read-in current (old) IDS settings.
- &General::readhash("$idssettingsfile", \%oldidssettings);
+ &General::readhash("$IDS::ids_settings_file", \%oldidssettings);
# Prevent form name from been stored in conf file.
delete $cgiparams{'IDS'};
# Go on if there are no error messages.
if (!$errormessage) {
# Store settings into settings file.
- &General::writehash("$idssettingsfile", \%cgiparams);
+ &General::writehash("$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. $!\n";
+ open(FILE, ">$IDS::modify_sids_file") or die "Could not write to $IDS::modify_sids_file. $!\n";
# Write file header.
print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
}
# Read-in idssettings and rulesetsettings
-&General::readhash("$idssettingsfile", \%idssettings);
-&General::readhash("$rulessettingsfile", \%rulessettings);
+&General::readhash("$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'})) {
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 generate the rules file with whitelisted addresses.
#
my $sid = 1500000;
# Read-in ignoredfile.
- &General::readhasharray($ignoredfile, \%ignored);
+ &General::readhasharray($IDS::ignored_file, \%ignored);
# Open ignorefile for writing.
- open(FILE, ">$whitelistfile") or die "Could not write to $whitelistfile. $!\n";
+ open(FILE, ">$IDS::whitelist_file") or die "Could not write to $IDS::whitelist_file. $!\n";
# Config file header.
print FILE "# Autogenerated file.\n";
projects / ipfire-2.x.git / commitdiff
