. Copyright (C) 2008-2009 Robert Zelaya. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ require("guiconfig.inc"); include_once("/usr/local/pkg/snort/snort.inc"); if (!is_array($config['installedpackages']['snortglobal']['rule'])) { $config['installedpackages']['snortglobal']['rule'] = array(); } //nat_rules_sort(); $a_nat = &$config['installedpackages']['snortglobal']['rule']; $id = $_GET['id']; if (isset($_POST['id'])) $id = $_POST['id']; if (isset($_GET['dup'])) { $id = $_GET['dup']; $after = $_GET['dup']; } if (isset($id) && $a_nat[$id]) { /* old options */ $pconfig['def_ssl_ports_ignore'] = $a_nat[$id]['def_ssl_ports_ignore']; $pconfig['flow_depth'] = $a_nat[$id]['flow_depth']; $pconfig['perform_stat'] = $a_nat[$id]['perform_stat']; $pconfig['http_inspect'] = $a_nat[$id]['http_inspect']; $pconfig['other_preprocs'] = $a_nat[$id]['other_preprocs']; $pconfig['ftp_preprocessor'] = $a_nat[$id]['ftp_preprocessor']; $pconfig['smtp_preprocessor'] = $a_nat[$id]['smtp_preprocessor']; $pconfig['sf_portscan'] = $a_nat[$id]['sf_portscan']; $pconfig['dce_rpc_2'] = $a_nat[$id]['dce_rpc_2']; $pconfig['dns_preprocessor'] = $a_nat[$id]['dns_preprocessor']; $pconfig['def_dns_servers'] = $a_nat[$id]['def_dns_servers']; $pconfig['def_dns_ports'] = $a_nat[$id]['def_dns_ports']; $pconfig['def_smtp_servers'] = $a_nat[$id]['def_smtp_servers']; $pconfig['def_smtp_ports'] = $a_nat[$id]['def_smtp_ports']; $pconfig['def_mail_ports'] = $a_nat[$id]['def_mail_ports']; $pconfig['def_http_servers'] = $a_nat[$id]['def_http_servers']; $pconfig['def_www_servers'] = $a_nat[$id]['def_www_servers']; $pconfig['def_http_ports'] = $a_nat[$id]['def_http_ports']; $pconfig['def_sql_servers'] = $a_nat[$id]['def_sql_servers']; $pconfig['def_oracle_ports'] = $a_nat[$id]['def_oracle_ports']; $pconfig['def_mssql_ports'] = $a_nat[$id]['def_mssql_ports']; $pconfig['def_telnet_servers'] = $a_nat[$id]['def_telnet_servers']; $pconfig['def_telnet_ports'] = $a_nat[$id]['def_telnet_ports']; $pconfig['def_snmp_servers'] = $a_nat[$id]['def_snmp_servers']; $pconfig['def_snmp_ports'] = $a_nat[$id]['def_snmp_ports']; $pconfig['def_ftp_servers'] = $a_nat[$id]['def_ftp_servers']; $pconfig['def_ftp_ports'] = $a_nat[$id]['def_ftp_ports']; $pconfig['def_ssh_servers'] = $a_nat[$id]['def_ssh_servers']; $pconfig['def_ssh_ports'] = $a_nat[$id]['def_ssh_ports']; $pconfig['def_pop_servers'] = $a_nat[$id]['def_pop_servers']; $pconfig['def_pop2_ports'] = $a_nat[$id]['def_pop2_ports']; $pconfig['def_pop3_ports'] = $a_nat[$id]['def_pop3_ports']; $pconfig['def_imap_servers'] = $a_nat[$id]['def_imap_servers']; $pconfig['def_imap_ports'] = $a_nat[$id]['def_imap_ports']; $pconfig['def_sip_proxy_ip'] = $a_nat[$id]['def_sip_proxy_ip']; $pconfig['ip def_sip_proxy_ports'] = $a_nat[$id]['ip def_sip_proxy_ports']; $pconfig['def_auth_ports'] = $a_nat[$id]['def_auth_ports']; $pconfig['def_finger_ports'] = $a_nat[$id]['def_finger_ports']; $pconfig['def_irc_ports'] = $a_nat[$id]['def_irc_ports']; $pconfig['def_nntp_ports'] = $a_nat[$id]['def_nntp_ports']; $pconfig['def_rlogin_ports'] = $a_nat[$id]['def_rlogin_ports']; $pconfig['def_rsh_ports'] = $a_nat[$id]['def_rsh_ports']; $pconfig['def_ssl_ports'] = $a_nat[$id]['def_ssl_ports']; $pconfig['barnyard_enable'] = $a_nat[$id]['barnyard_enable']; $pconfig['barnyard_mysql'] = $a_nat[$id]['barnyard_mysql']; $pconfig['enable'] = $a_nat[$id]['enable']; $pconfig['interface'] = $a_nat[$id]['interface']; $pconfig['descr'] = $a_nat[$id]['descr']; $pconfig['performance'] = $a_nat[$id]['performance']; $pconfig['blockoffenders7'] = $a_nat[$id]['blockoffenders7']; $pconfig['alertsystemlog'] = $a_nat[$id]['alertsystemlog']; $pconfig['tcpdumplog'] = $a_nat[$id]['tcpdumplog']; $pconfig['snortunifiedlog'] = $a_nat[$id]['snortunifiedlog']; $pconfig['rulesets'] = $a_nat[$id]['rulesets']; $pconfig['rule_sid_off'] = $a_nat[$id]['rule_sid_off']; $pconfig['rule_sid_on'] = $a_nat[$id]['rule_sid_on']; if (!$pconfig['interface']) $pconfig['interface'] = "wan"; } else { $pconfig['interface'] = "wan"; } if (isset($_GET['dup'])) unset($id); /* convert fake interfaces to real */ $if_real = convert_friendly_interface_to_real_interface_name($pconfig['interface']); if ($_POST["Submit"]) { /* input validation */ // if(strtoupper($_POST['proto']) == "TCP" or strtoupper($_POST['proto']) == "UDP" or strtoupper($_POST['proto']) == "TCP/UDP") { // $reqdfields = explode(" ", "interface proto beginport endport localip localbeginport"); // $reqdfieldsn = explode(",", "Interface,Protocol,External port from,External port to,NAT IP,Local port"); // } else { // $reqdfields = explode(" ", "interface proto localip"); // $reqdfieldsn = explode(",", "Interface,Protocol,NAT IP"); // } // do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); // if (($_POST['localip'] && !is_ipaddroralias($_POST['localip']))) { // $input_errors[] = "\"{$_POST['localip']}\" is not valid NAT IP address or host alias."; // } /* only validate the ports if the protocol is TCP, UDP or TCP/UDP */ // if(strtoupper($_POST['proto']) == "TCP" or strtoupper($_POST['proto']) == "UDP" or strtoupper($_POST['proto']) == "TCP/UDP") { // if (($_POST['beginport'] && !is_ipaddroralias($_POST['beginport']) && !is_port($_POST['beginport']))) { // $input_errors[] = "The start port must be an integer between 1 and 65535."; // } // if (($_POST['endport'] && !is_ipaddroralias($_POST['endport']) && !is_port($_POST['endport']))) { // $input_errors[] = "The end port must be an integer between 1 and 65535."; // } // if (($_POST['localbeginport'] && !is_ipaddroralias($_POST['localbeginport']) && !is_port($_POST['localbeginport']))) { // $input_errors[] = "The local port must be an integer between 1 and 65535."; // } // if ($_POST['beginport'] > $_POST['endport']) { /* swap */ // $tmp = $_POST['endport']; // $_POST['endport'] = $_POST['beginport']; // $_POST['beginport'] = $tmp; // } // if (!$input_errors) { // if (($_POST['endport'] - $_POST['beginport'] + $_POST['localbeginport']) > 65535) // $input_errors[] = "The target port range must be an integer between 1 and 65535."; // } // if ($config['installedpackages']['snortglobal']['rule']) { // if ($_POST['descr'] == "") { // $input_errors[] = "Please enter a description for your reference."; // } // if ($id == "" && $config['installedpackages']['snortglobal']['rule'][0]['interface'] != "") { // $rule_array = $config['installedpackages']['snortglobal']['rule']; // $id_c = -1; // foreach ($rule_array as $value) { // $id_c += 1; // $result_lan = $config['installedpackages']['snortglobal']['rule'][$id_c]['interface']; // $if_real = convert_friendly_interface_to_real_interface_name($result_lan); // if ($_POST['interface'] == $result_lan) { // $input_errors[] = "Interface $result_lan is in use. Please select another interface."; // } // } // } /* check for overlaps */ foreach ($a_nat as $natent) { if (isset($id) && ($a_nat[$id]) && ($a_nat[$id] === $natent)) continue; if ($natent['interface'] != $_POST['interface']) continue; } /* if no errors write to conf */ if (!$input_errors) { $natent = array(); /* write to conf for 1st time or rewrite the answer */ $natent['interface'] = $_POST['interface'] ? $_POST['interface'] : $pconfig['interface']; /* if post write to conf or rewite the answer */ $natent['enable'] = $_POST['enable'] ? on : off; $natent['descr'] = $_POST['descr'] ? $_POST['descr'] : $pconfig['descr']; $natent['performance'] = $_POST['performance'] ? $_POST['performance'] : $pconfig['performance']; /* if post = on use on off or rewrite the conf */ if ($_POST['blockoffenders7'] == "on") { $natent['blockoffenders7'] = on; }else{ $natent['blockoffenders7'] = off; } if ($_POST['enable'] == "") { $natent['blockoffenders7'] = $pconfig['blockoffenders7']; } if ($_POST['alertsystemlog'] == "on") { $natent['alertsystemlog'] = on; }else{ $natent['alertsystemlog'] = off; } if ($_POST['enable'] == "") { $natent['alertsystemlog'] = $pconfig['alertsystemlog']; } if ($_POST['tcpdumplog'] == "on") { $natent['tcpdumplog'] = on; }else{ $natent['tcpdumplog'] = off; } if ($_POST['enable'] == "") { $natent['tcpdumplog'] = $pconfig['tcpdumplog']; } if ($_POST['snortunifiedlog'] == "on") { $natent['snortunifiedlog'] = on; }else{ $natent['snortunifiedlog'] = off; } if ($_POST['enable'] == "") { $natent['snortunifiedlog'] = $pconfig['snortunifiedlog']; } /* if optiion = 0 then the old descr way will not work */ /* rewrite the options that are not in post */ /* make shure values are set befor repost or conf.xml will be broken */ if ($pconfig['def_ssl_ports_ignore'] != "") { $natent['def_ssl_ports_ignore'] = $pconfig['def_ssl_ports_ignore']; } if ($pconfig['flow_depth'] != "") { $natent['flow_depth'] = $pconfig['flow_depth']; } if ($pconfig['perform_stat'] != "") { $natent['perform_stat'] = $pconfig['perform_stat']; } if ($pconfig['http_inspect'] != "") { $natent['http_inspect'] = $pconfig['http_inspect']; } if ($pconfig['other_preprocs'] != "") { $natent['other_preprocs'] = $pconfig['other_preprocs']; } if ($pconfig['ftp_preprocessor'] != "") { $natent['ftp_preprocessor'] = $pconfig['ftp_preprocessor']; } if ($pconfig['smtp_preprocessor'] != "") { $natent['smtp_preprocessor'] = $pconfig['smtp_preprocessor']; } if ($pconfig['sf_portscan'] != "") { $natent['sf_portscan'] = $pconfig['sf_portscan']; } if ($pconfig['dce_rpc_2'] != "") { $natent['dce_rpc_2'] = $pconfig['dce_rpc_2']; } if ($pconfig['dns_preprocessor'] != "") { $natent['dns_preprocessor'] = $pconfig['dns_preprocessor']; } if ($pconfig['def_dns_servers'] != "") { $natent['def_dns_servers'] = $pconfig['def_dns_servers']; } if ($pconfig['def_dns_ports'] != "") { $natent['def_dns_ports'] = $pconfig['def_dns_ports']; } if ($pconfig['def_smtp_servers'] != "") { $natent['def_smtp_servers'] = $pconfig['def_smtp_servers']; } if ($pconfig['def_smtp_ports'] != "") { $natent['def_smtp_ports'] = $pconfig['def_smtp_ports']; } if ($pconfig['def_mail_ports'] != "") { $natent['def_mail_ports'] = $pconfig['def_mail_ports']; } if ($pconfig['def_http_servers'] != "") { $natent['def_http_servers'] = $pconfig['def_http_servers']; } if ($pconfig['def_www_servers'] != "") { $natent['def_www_servers'] = $pconfig['def_www_servers']; } if ($pconfig['def_http_ports'] != "") { $natent['def_http_ports'] = $pconfig['def_http_ports']; } if ($pconfig['def_sql_servers'] != "") { $natent['def_sql_servers'] = $pconfig['def_sql_servers']; } if ($pconfig['def_oracle_ports'] != "") { $natent['def_oracle_ports'] = $pconfig['def_oracle_ports']; } if ($pconfig['def_mssql_ports'] != "") { $natent['def_mssql_ports'] = $pconfig['def_mssql_ports']; } if ($pconfig['def_telnet_servers'] != "") { $natent['def_telnet_servers'] = $pconfig['def_telnet_servers']; } if ($pconfig['def_telnet_ports'] != "") { $natent['def_telnet_ports'] = $pconfig['def_telnet_ports']; } if ($pconfig['def_snmp_servers'] != "") { $natent['def_snmp_servers'] = $pconfig['def_snmp_servers']; } if ($pconfig['def_snmp_ports'] != "") { $natent['def_snmp_ports'] = $pconfig['def_snmp_ports']; } if ($pconfig['def_ftp_servers'] != "") { $natent['def_ftp_servers'] = $pconfig['def_ftp_servers']; } if ($pconfig['def_ftp_ports'] != "") { $natent['def_ftp_ports'] = $pconfig['def_ftp_ports']; } if ($pconfig['def_ssh_servers'] != "") { $natent['def_ssh_servers'] = $pconfig['def_ssh_servers']; } if ($pconfig['def_ssh_ports'] != "") { $natent['def_ssh_ports'] = $pconfig['def_ssh_ports']; } if ($pconfig['def_pop_servers'] != "") { $natent['def_pop_servers'] = $pconfig['def_pop_servers']; } if ($pconfig['def_pop2_ports'] != "") { $natent['def_pop2_ports'] = $pconfig['def_pop2_ports']; } if ($pconfig['def_pop3_ports'] != "") { $natent['def_pop3_ports'] = $pconfig['def_pop3_ports']; } if ($pconfig['def_imap_servers'] != "") { $natent['def_imap_servers'] = $pconfig['def_imap_servers']; } if ($pconfig['def_imap_ports'] != "") { $natent['def_imap_ports'] = $pconfig['def_imap_ports']; } if ($pconfig['def_sip_proxy_ip'] != "") { $natent['def_sip_proxy_ip'] = $pconfig['def_sip_proxy_ip']; } if ($pconfig['ip def_sip_proxy_ports'] != "") { $natent['ip def_sip_proxy_ports'] = $pconfig['ip def_sip_proxy_ports']; } if ($pconfig['def_auth_ports'] != "") { $natent['def_auth_ports'] = $pconfig['def_auth_ports']; } if ($pconfig['def_finger_ports'] != "") { $natent['def_finger_ports'] = $pconfig['def_finger_ports']; } if ($pconfig['def_irc_ports'] != "") { $natent['def_irc_ports'] = $pconfig['def_irc_ports']; } if ($pconfig['def_nntp_ports'] != "") { $natent['def_nntp_ports'] = $pconfig['def_nntp_ports']; } if ($pconfig['def_rlogin_ports'] != "") { $natent['def_rlogin_ports'] = $pconfig['def_rlogin_ports']; } if ($pconfig['def_rsh_ports'] != "") { $natent['def_rsh_ports'] = $pconfig['def_rsh_ports']; } if ($pconfig['def_ssl_ports'] != "") { $natent['def_ssl_ports'] = $pconfig['def_ssl_ports']; } if ($pconfig['barnyard_enable'] != "") { $natent['barnyard_enable'] = $pconfig['barnyard_enable']; } if ($pconfig['barnyard_mysql'] != "") { $natent['barnyard_mysql'] = $pconfig['barnyard_mysql']; } if ($pconfig['rulesets'] != "") { $natent['rulesets'] = $pconfig['rulesets']; } if ($pconfig['rule_sid_off'] != "") { $natent['rule_sid_off'] = $pconfig['rule_sid_off']; } if ($pconfig['rule_sid_on'] != "") { $natent['rule_sid_on'] = $pconfig['rule_sid_on']; } if (isset($id) && $a_nat[$id]) $a_nat[$id] = $natent; else { if (is_numeric($after)) array_splice($a_nat, $after+1, 0, array($natent)); else $a_nat[] = $natent; } write_config(); // stop_service("snort"); if ($pconfig['interface'] != "") { sync_snort_package_all(); } if ($pconfig['interface'] != "") { header("Location: /snort/snort_interfaces_edit.php?id=$id"); }else{ touch($d_natconfdirty_path); header("Location: /snort/snort_interfaces.php"); } exit; } } if ($_POST["Submit2"]) { sync_snort_package_all(); sleep(1); exec("/bin/sh /usr/local/etc/rc.d/snort_{$id}{$if_real}.sh restart"); header("Location: /snort/snort_interfaces_edit.php?id=$id"); exit; } $pgtitle = "Snort: Interface: $id$if_real Settings Edit"; include("head.inc"); ?>

\n"; } ?> \n\n"; ?>   Note: You will be redirected to the Snort Interfaces Menu to aprove changes. After approval, interface options will be made available. Please select a interface and a description.   // care with spaces if ($pconfig['enable'] == "on") $checked = checked; if($id != "") { $onclick_enable = "onClick=\"enable_change(false)\">"; } echo " Enable Interface Interface 'WAN', 'lan' => 'LAN'); for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) { $interfaces['opt' . $i] = $config['interfaces']['opt' . $i]['descr']; } foreach ($interfaces as $iface => $ifacename): ?> > Choose which interface this rule applies to. Hint: in most cases, you'll want to use WAN here. Description You may enter a description here for your reference (not parsed). Memory Performance 'AC-BNFA', 'lowmem' => 'LOWMEM', 'ac-std' => 'AC-STD', 'ac' => 'AC', 'ac-banded' => 'AC-BANDED', 'ac-sparsebands' => 'AC-SPARSEBANDS', 'acs' => 'ACS'); foreach ($interfaces2 as $iface2 => $ifacename2): ?> > Lowmem and ac-bnfa are recommended for low end systems, Ac: high memory, best performance, ac-std: moderate memory,high performance, acs: small memory, moderateperformance, ac-banded: small memory,moderate performance, ac-sparsebands: small memory, high performance. Hint: in most cases, you'll want to use WAN here. Block offenders onClick="enable_change(false)"> Checking this option will automatically block hosts that generate a snort alert. Send alerts to main System logs onClick="enable_change(false)"> Snort will send Alerts to the Pfsense system logs. Log to a Tcpdump file onClick="enable_change(false)"> Snort will log packets to a tcpdump-formatted file. The file then can be analyzed by a wireshark type of application. WARNING: File may become large. Log Alerts to a snort unified2 file onClick="enable_change(false)"> Snort will log Alerts to a file in the UNIFIED2 format. This is a requirement for barnyard2.     Note: Please save your settings befor you click start.