# 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($IDS::ignored_file, \%ignored);
# Regenerate the ignore file.
- &GenerateIgnoreFile();
+ &IDS::generate_ignore_file();
}
# Check if the IDS is running.
undef($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($IDS::ignored_file, \%ignored);
# Regenerate the ignore file.
- &GenerateIgnoreFile();
+ &IDS::generate_ignore_file();
# Check if the IDS is running.
if(&IDS::ids_is_running()) {
my %ignored = ();
# Read-in ignoredfile.
- &General::readhasharray($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();
+ &IDS::generate_ignore_file();
# Check if the IDS is running.
if(&IDS::ids_is_running()) {
unlink($IDS::storederrorfile);
}
-
## Grab all available snort rules and store them in the idsrules hash.
#
# Open snort rules directory and do a directory listing.
# 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";
-
- # Write file header.
- print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+ # Temporary variable to set the ruleaction.
+ # Default is "drop" to use suricata as IPS.
+ my $ruleaction="drop";
# Check if the traffic only should be monitored.
- unless($cgiparams{'MONITOR_TRAFFIC_ONLY'} eq 'on') {
- # Tell oinkmaster to switch all rules from alert to drop.
- print FILE "modifysid \* \"alert\" \| \"drop\"\n";
+ if($cgiparams{'MONITOR_TRAFFIC_ONLY'} eq 'on') {
+ # Switch the ruleaction to "alert".
+ # Suricata acts as an IDS only.
+ $ruleaction="alert";
}
- # Close file handle.
- close(FILE);
+ # Write the modify sid's file and pass the taken ruleaction.
+ &IDS::write_modify_sids_file($ruleaction);
# Check if "MONITOR_TRAFFIC_ONLY" has been changed.
if($cgiparams{'MONITOR_TRAFFIC_ONLY'} ne $oldidssettings{'MONITOR_TRAFFIC_ONLY'}) {
}
# Read-in idssettings and rulesetsettings
-&General::readhash("$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.
-#
-sub GenerateIgnoreFile() {
- my %ignored = ();
-
- # SID range 1000000-1999999 Reserved for Local Use
- # Put your custom rules in this range to avoid conflicts
- my $sid = 1500000;
-
- # Read-in ignoredfile.
- &General::readhasharray($ignoredfile, \%ignored);
-
- # Open ignorefile for writing.
- open(FILE, ">$whitelistfile") or die "Could not write to $whitelistfile. $!\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++;
- }
- }
- }
- }
-
- close(FILE);
-}
-
#
## Function to read-in the given enabled or disables sids file.
#
projects / ipfire-2.x.git / blobdiff