adding snort-dev package as requested

1 files changed, 1207 insertions, 0 deletions

diff --git a/config/snort-dev/snort.inc b/config/snort-dev/snort.inc
new file mode 100644
index 00000000..884f0883
--- /dev/null
+++ b/config/snort-dev/snort.inc
@@ -0,0 +1,1207 @@
+<?php
+/* $Id$ */
+/*
+	snort.inc
+	Copyright (C) 2006 Scott Ullrich
+	part of pfSense
+	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_once("pfsense-utils.inc");
+
+// Needed on 2.0 because of get_vpns_list()
+require_once("filter.inc"); 
+
+/* Allow additional execution time 0 = no limit. */
+ini_set('max_execution_time', '9999');
+ini_set('max_input_time', '9999');
+
+/* define oinkid */
+if($config['installedpackages']['snort'])
+	$oinkid = $config['installedpackages']['snort']['config'][0]['oinkmastercode'];
+
+function sync_package_snort_reinstall() 
+{
+	global $config;
+	if(!$config['installedpackages']['snort'])
+		return;
+    
+	/* create snort configuration file */
+	create_snort_conf();
+  
+	/* start snort service */
+	start_service("snort");
+}
+
+function sync_package_snort()
+{
+	global $config, $g;
+
+	mwexec("mkdir -p /var/log/snort/");
+
+	if(!file_exists("/var/log/snort/alert"))
+		touch("/var/log/snort/alert");
+
+	/* snort -> advanced features */
+	$bpfbufsize = $config['installedpackages']['snortadvanced']['config'][0]['bpfbufsize'];
+	$bpfmaxbufsize = $config['installedpackages']['snortadvanced']['config'][0]['bpfmaxbufsize'];
+	$bpfmaxinsns = $config['installedpackages']['snortadvanced']['config'][0]['bpfmaxinsns'];
+
+	/* set the snort performance model */
+	if($config['installedpackages']['snort']['config'][0]['performance'])
+		$snort_performance = $config['installedpackages']['snort']['config'][0]['performance'];
+	else
+		$snort_performance = "ac-bnfa";
+
+	conf_mount_rw();
+	/* create a few directories and ensure the sample files are in place */
+	exec("/bin/mkdir -p /usr/local/etc/snort");
+	exec("/bin/mkdir -p /var/log/snort");
+	exec("/bin/mkdir -p /usr/local/etc/snort/rules");
+	exec("/bin/cp /usr/local/etc/snort/unicode.map-sample /usr/local/etc/snort/unicode.map");
+	exec("/bin/cp /usr/local/etc/snort/classification.config-sample /usr/local/etc/snort/classification.config");
+	exec("/bin/cp /usr/local/etc/snort/gen-msg.map-sample /usr/local/etc/snort/gen-msg.map");
+	exec("/bin/cp /usr/local/etc/snort/generators-sample /usr/local/etc/snort/generators");
+	exec("/bin/cp /usr/local/etc/snort/reference.config-sample /usr/local/etc/snort/reference.config");
+	exec("/bin/cp /usr/local/etc/snort/sid-msg.map-sample /usr/local/etc/snort/sid-msg.map");
+	exec("/bin/cp /usr/local/etc/snort/sid-sample /usr/local/etc/snort/sid");
+	exec("/bin/cp /usr/local/etc/snort/threshold.conf-sample /usr/local/etc/snort/threshold.conf");
+	exec("/bin/cp /usr/local/etc/snort/unicode.map-sample /usr/local/etc/snort/unicode.map");
+	exec("/bin/rm -f /usr/local/etc/rc.d/snort");
+
+	$first = 0;
+	$snortInterfaces = array(); /* -gtm  */
+	
+	$if_list = $config['installedpackages']['snort']['config'][0]['iface_array'];
+	$if_array = split(',', $if_list);
+	//print_r($if_array);
+	if($if_array) {
+		foreach($if_array as $iface) {
+			$if = convert_friendly_interface_to_real_interface_name($iface);
+			
+			if($config['interfaces'][$iface]['ipaddr'] == "pppoe") {
+				$if = "ng0";
+			}
+	      
+			/* build a list of user specified interfaces -gtm */      
+			if($if){      
+			  array_push($snortInterfaces, $if);
+			  $first = 1;
+			}
+		}	
+	    
+		if (count($snortInterfaces) < 1) {
+			log_error("Snort will not start.  You must select an interface for it to listen on.");
+			return;
+		}
+	}
+	//print_r($snortInterfaces);
+	
+	/* create log directory */
+	$start  = "/bin/mkdir -p /var/log/snort\n";
+
+	/* snort advanced features - bpf tuning */
+	if($bpfbufsize)
+		$start .= "sysctl net.bpf.bufsize={$bpfbufsize}\n";
+	if($bpfmaxbufsize)
+		$start .= "sysctl net.bpf.maxbufsize={$bpfmaxbufsize}\n";
+	if($bpfmaxinsns)
+		$start .= "sysctl net.bpf.maxinsns={$bpfmaxinsns}\n";
+
+	/* go ahead and issue bpf changes */
+	if($bpfbufsize)
+		mwexec_bg("sysctl net.bpf.bufsize={$bpfbufsize}");
+	if($bpfmaxbufsize)
+		mwexec_bg("sysctl net.bpf.maxbufsize={$bpfmaxbufsize}");
+	if($bpfmaxinsns)
+		mwexec_bg("sysctl net.bpf.maxinsns={$bpfmaxinsns}");
+
+	/* always stop snort2c before starting snort -gtm */
+	$start .= "/usr/bin/killall snort2c\n";
+
+	/* start a snort process for each interface -gtm */
+	/* Note the sleep delay.  Seems to help getting mult interfaces to start -gtm */
+	/* snort start options are; config file, log file, demon, interface, packet flow, alert type, quiet */
+	/* TODO; get snort to start under nologin shell */
+	foreach($snortInterfaces as $snortIf)
+	{
+		$start .= "sleep 8\n";
+		$start .= "snort -c /usr/local/etc/snort/snort.conf -l /var/log/snort -D -i {$snortIf} -q\n";
+	}    
+    
+	/* if block offenders is checked, start snort2c */
+	if($_POST['blockoffenders']) {
+		$start .= "\nsleep 8\n";
+		$start .= "snort2c -w /var/db/whitelist -a /var/log/snort/alert\n";
+	}
+    
+	$sample_before = "\nBEFORE_MEM=`top | grep Free | grep Wired | awk '{print \$10}'`\n";
+	$sample_after = "\nAFTER_MEM=`top | grep Free | grep Wired | awk '{print \$10}'`\n";
+	$sleep_before_final = "\necho \"Sleeping before final memory sampling...\"\nsleep 17";
+	$total_free_after = "\nTOTAL_USAGE=`top | grep snort | grep -v grep | awk '{ print \$6 }'`\n";
+	$echo_usage = "\necho \"Ram free BEFORE starting Snort: \${BEFORE_MEM} -- Ram free AFTER starting Snort: \${AFTER_MEM}\" -- Mode {$snort_performance} -- Snort memory usage: \$TOTAL_USAGE | logger -p daemon.info -i -t SnortStartup\n";
+
+	/* write out rc.d start/stop file */
+	write_rcfile(array(
+			"file" => "snort.sh",
+			"start" => "{$sample_before}{$start}{$sleep_before_final}{$sample_after}{$echo_usage}",
+			"stop" => "/usr/bin/killall snort; killall snort2c"
+		)
+	);
+
+	/* create snort configuration file */
+	create_snort_conf();
+
+	/* start snort service */
+	conf_mount_ro();
+	start_service("snort");
+}
+
+function create_snort_conf() {
+	global $config, $g;
+	/* write out snort.conf */
+	$snort_conf_text = generate_snort_conf();
+	conf_mount_rw();
+	$conf = fopen("/usr/local/etc/snort/snort.conf", "w");
+	if(!$conf) {
+		log_error("Could not open /usr/local/etc/snort/snort.conf for writing.");
+		exit;
+	}
+	fwrite($conf, $snort_conf_text);
+	fclose($conf);
+	conf_mount_ro();
+}
+
+function snort_deinstall() {
+//	$text_ww   = "*/60\t* \t 1\t *\t *\t root\t /usr/bin/nice -n20 /usr/local/pkg/snort_check_for_rule_updates.php";
+//	$filenamea = "/etc/crontab";
+	/* remove auto rules update helper */
+//	remove_text_from_file($filenamea, $text_ww);
+	/* remove custom sysctl */
+	remove_text_from_file("/etc/sysctl.conf", "sysctl net.bpf.bufsize=20480");
+	/* decrease bpf buffers back to 4096, from 20480 */
+	exec("/sbin/sysctl net.bpf.bufsize=4096");
+	exec("/usr/bin/killall snort");
+	sleep(5);
+	exec("/usr/bin/killall -9 snort");
+	exec("rm -f /usr/local/etc/rc.d/snort*");
+	exec("rm -rf /usr/local/etc/snort*");
+	exec("cd /var/db/pkg && pkg_delete `ls | grep snort`");
+	exec("cd /var/db/pkg && pkg_delete `ls | grep mysql-client`");
+	exec("cd /var/db/pkg && pkg_delete `ls | grep libdnet`");
+	exec("/usr/bin/killall -9 snort");
+	exec("/usr/bin/killall snort");
+}
+
+function generate_snort_conf() {
+
+	global $config, $g;
+	conf_mount_rw();
+	/* obtain external interface */
+	/* XXX: make multi wan friendly */
+	$snort_ext_int = $config['installedpackages']['snort']['config'][0]['iface_array'][0];
+
+	$snort_config_pass_thru = $config['installedpackages']['snortadvanced']['config'][0]['configpassthru'];
+	
+/* define snortalertlogtype */
+$snortalertlogtype = $config['installedpackages']['snortadvanced']['config'][0]['snortalertlogtype'];
+if ($snortalertlogtype == fast)
+    $snortalertlogtype_type = "output alert_fast: alert";
+else
+	$snortalertlogtype_type = "output alert_full: alert"; 
+
+/* define alertsystemlog */
+$alertsystemlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['alertsystemlog'];
+if ($alertsystemlog_info_chk == on)
+    $alertsystemlog_type = "output alert_syslog: log_alert";
+
+/* define tcpdumplog */
+$tcpdumplog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['tcpdumplog'];
+if ($tcpdumplog_info_chk == on)
+    $tcpdumplog_type = "output log_tcpdump: snorttcpd.log";
+
+/* define snortmysqllog */
+$snortmysqllog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortmysqllog'];
+
+/* define snortunifiedlog */
+$snortunifiedlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortunifiedlog'];
+if ($snortunifiedlog_info_chk == on)
+    $snortunifiedlog_type = "output unified2: filename snort.u2, limit 128";
+
+/* define servers and ports snortdefservers */
+
+/* def DNS_SERVSERS */
+$def_dns_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_dns_servers'];
+if ($def_dns_servers_info_chk == "")
+	$def_dns_servers_type = "\$HOME_NET";
+else 
+	$def_dns_servers_type = "$def_dns_servers_info_chk";
+
+/* def DNS_PORTS */
+$def_dns_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_dns_ports'];
+if ($def_dns_ports_info_chk == "")
+	$def_dns_ports_type = "53";
+else 
+	$def_dns_ports_type = "$def_dns_ports_info_chk";
+
+/* def SMTP_SERVSERS */
+$def_smtp_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_smtp_servers'];
+if ($def_smtp_servers_info_chk == "")
+	$def_smtp_servers_type = "\$HOME_NET";
+else 
+	$def_smtp_servers_type = "$def_smtp_servers_info_chk";
+
+/* def SMTP_PORTS */
+$def_smtp_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_smtp_ports'];
+if ($def_smtp_ports_info_chk == "")
+	$def_smtp_ports_type = "25";
+else 
+	$def_smtp_ports_type = "$def_smtp_ports_info_chk";
+
+/* def MAIL_PORTS */
+$def_mail_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_mail_ports'];
+if ($def_mail_ports_info_chk == "")
+	$def_mail_ports_type = "25,143,465,691";
+else 
+	$def_mail_ports_type = "$def_mail_ports_info_chk";
+	
+/* def HTTP_SERVSERS */
+$def_http_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_http_servers'];
+if ($def_http_servers_info_chk == "")
+	$def_http_servers_type = "\$HOME_NET";
+else 
+	$def_http_servers_type = "$def_http_servers_info_chk";
+
+/* def WWW_SERVSERS */
+$def_www_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_www_servers'];
+if ($def_www_servers_info_chk == "")
+	$def_www_servers_type = "\$HOME_NET";
+else 
+	$def_www_servers_type = "$def_www_servers_info_chk";
+
+/* def HTTP_PORTS */
+$def_http_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_http_ports'];
+if ($def_http_ports_info_chk == "")
+	$def_http_ports_type = "80";
+else 
+	$def_http_ports_type = "$def_http_ports_info_chk";
+	
+/* def SQL_SERVSERS */
+$def_sql_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_sql_servers'];
+if ($def_sql_servers_info_chk == "")
+	$def_sql_servers_type = "\$HOME_NET";
+else 
+	$def_sql_servers_type = "$def_sql_servers_info_chk";
+
+/* def ORACLE_PORTS */
+$def_oracle_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_oracle_ports'];
+if ($def_oracle_ports_info_chk == "")
+	$def_oracle_ports_type = "1521";
+else 
+	$def_oracle_ports_type = "$def_oracle_ports_info_chk";
+
+/* def MSSQL_PORTS */
+$def_mssql_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_mssql_ports'];
+if ($def_mssql_ports_info_chk == "")
+	$def_mssql_ports_type = "1433";
+else 
+	$def_mssql_ports_type = "$def_mssql_ports_info_chk";
+
+/* def TELNET_SERVSERS */
+$def_telnet_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_telnet_servers'];
+if ($def_telnet_servers_info_chk == "")
+	$def_telnet_servers_type = "\$HOME_NET";
+else 
+	$def_telnet_servers_type = "$def_telnet_servers_info_chk";
+	
+/* def TELNET_PORTS */
+$def_telnet_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_telnet_ports'];
+if ($def_telnet_ports_info_chk == "")
+	$def_telnet_ports_type = "23";
+else 
+	$def_telnet_ports_type = "$def_telnet_ports_info_chk";
+	
+/* def SNMP_SERVSERS */
+$def_snmp_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_snmp_servers'];
+if ($def_snmp_servers_info_chk == "")
+	$def_snmp_servers_type = "\$HOME_NET";
+else 
+	$def_snmp_servers_type = "$def_snmp_servers_info_chk";
+	
+/* def SNMP_PORTS */
+$def_snmp_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_snmp_ports'];
+if ($def_snmp_ports_info_chk == "")
+	$def_snmp_ports_type = "161";
+else 
+	$def_snmp_ports_type = "$def_snmp_ports_info_chk";
+	
+/* def FTP_SERVSERS */
+$def_ftp_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_ftp_servers'];
+if ($def_ftp_servers_info_chk == "")
+	$def_ftp_servers_type = "\$HOME_NET";
+else 
+	$def_ftp_servers_type = "$def_ftp_servers_info_chk";
+	
+/* def FTP_PORTS */
+$def_ftp_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_ftp_ports'];
+if ($def_ftp_ports_info_chk == "")
+	$def_ftp_ports_type = "21";
+else 
+	$def_ftp_ports_type = "$def_ftp_ports_info_chk";
+	
+/* def SSH_SERVSERS */
+$def_ssh_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_ssh_servers'];
+if ($def_ssh_servers_info_chk == "")
+	$def_ssh_servers_type = "\$HOME_NET";
+else 
+	$def_ssh_servers_type = "$def_ssh_servers_info_chk";
+	
+/* if user has defined a custom ssh port, use it */
+if($config['system']['ssh']['port'])
+	$ssh_port = $config['system']['ssh']['port'];
+else
+	$ssh_port = "22";
+	
+/* def SSH_PORTS */
+$def_ssh_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_ssh_ports'];
+if ($def_ssh_ports_info_chk == "")
+	$def_ssh_ports_type = "{$ssh_port}";
+else 
+	$def_ssh_ports_type = "$def_ssh_ports_info_chk";
+	
+/* def POP_SERVSERS */
+$def_pop_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_pop_servers'];
+if ($def_pop_servers_info_chk == "")
+	$def_pop_servers_type = "\$HOME_NET";
+else 
+	$def_pop_servers_type = "$def_pop_servers_info_chk";
+	
+/* def POP2_PORTS */
+$def_pop2_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_pop2_ports'];
+if ($def_pop2_ports_info_chk == "")
+	$def_pop2_ports_type = "109";
+else 
+	$def_pop2_ports_type = "$def_pop2_ports_info_chk";
+	
+/* def POP3_PORTS */
+$def_pop3_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_pop3_ports'];
+if ($def_pop3_ports_info_chk == "")
+	$def_pop3_ports_type = "110";
+else 
+	$def_pop3_ports_type = "$def_pop3_ports_info_chk";
+	
+/* def IMAP_SERVSERS */
+$def_imap_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_imap_servers'];
+if ($def_imap_servers_info_chk == "")
+	$def_imap_servers_type = "\$HOME_NET";
+else 
+	$def_imap_servers_type = "$def_imap_servers_info_chk";
+	
+/* def IMAP_PORTS */
+$def_imap_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_imap_ports'];
+if ($def_imap_ports_info_chk == "")
+	$def_imap_ports_type = "143";
+else 
+	$def_imap_ports_type = "$def_imap_ports_info_chk";
+	
+/* def SIP_PROXY_IP */
+$def_sip_proxy_ip_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_sip_proxy_ip'];
+if ($def_sip_proxy_ip_info_chk == "")
+	$def_sip_proxy_ip_type = "\$HOME_NET";
+else 
+	$def_sip_proxy_ip_type = "$def_sip_proxy_ip_info_chk";
+	
+/* def SIP_PROXY_PORTS */
+$def_sip_proxy_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_sip_proxy_ports'];
+if ($def_sip_proxy_ports_info_chk == "")
+	$def_sip_proxy_ports_type = "5060:5090,16384:32768";
+else 
+	$def_sip_proxy_ports_type = "$def_sip_proxy_ports_info_chk";
+	
+/* def AUTH_PORTS */
+$def_auth_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_auth_ports'];
+if ($def_auth_ports_info_chk == "")
+	$def_auth_ports_type = "113";
+else 
+	$def_auth_ports_type = "$def_auth_ports_info_chk";
+	
+/* def FINGER_PORTS */
+$def_finger_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_finger_ports'];
+if ($def_finger_ports_info_chk == "")
+	$def_finger_ports_type = "79";
+else 
+	$def_finger_ports_type = "$def_finger_ports_info_chk";
+	
+/* def IRC_PORTS */
+$def_irc_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_irc_ports'];
+if ($def_irc_ports_info_chk == "")
+	$def_irc_ports_type = "6665,6666,6667,6668,6669,7000";
+else 
+	$def_irc_ports_type = "$def_irc_ports_info_chk";
+	
+/* def NNTP_PORTS */
+$def_nntp_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_nntp_ports'];
+if ($def_nntp_ports_info_chk == "")
+	$def_nntp_ports_type = "119";
+else 
+	$def_nntp_ports_type = "$def_nntp_ports_info_chk";
+	
+/* def RLOGIN_PORTS */
+$def_rlogin_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_rlogin_ports'];
+if ($def_rlogin_ports_info_chk == "")
+	$def_rlogin_ports_type = "513";
+else 
+	$def_rlogin_ports_type = "$def_rlogin_ports_info_chk";
+	
+/* def RSH_PORTS */
+$def_rsh_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_rsh_ports'];
+if ($def_rsh_ports_info_chk == "")
+	$def_rsh_ports_type = "514";
+else 
+	$def_rsh_ports_type = "$def_rsh_ports_info_chk";
+	
+/* def SSL_PORTS */
+$def_ssl_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_ssl_ports'];
+if ($def_ssl_ports_info_chk == "")
+	$def_ssl_ports_type = "25,443,465,636,993,995";
+else 
+	$def_ssl_ports_type = "$def_ssl_ports_info_chk";
+	
+	/* add auto update scripts to /etc/crontab */
+//	$text_ww   = "*/60\t* \t 1\t *\t *\t root\t /usr/bin/nice -n20 /usr/local/pkg/snort_check_for_rule_updates.php";
+//	$filenamea = "/etc/crontab";
+//	remove_text_from_file($filenamea, $text_ww);
+//	add_text_to_file($filenamea, $text_ww);
+//	exec("killall -HUP cron"); */
+
+	/* should we install a automatic update crontab entry? */
+	$automaticrulesupdate = $config['installedpackages']['snort']['config'][0]['automaticrulesupdate'];
+
+	/* if user is on pppoe, we really want to use ng0 interface */
+	if($config['interfaces'][$snort_ext_int]['ipaddr'] == "pppoe")
+		$snort_ext_int = "ng0";
+
+	/* set the snort performance model */
+	if($config['installedpackages']['snort']['config'][0]['performance'])
+		$snort_performance = $config['installedpackages']['snort']['config'][0]['performance'];
+	else
+		$snort_performance = "ac-bnfa";
+
+	/* open snort2c's whitelist for writing */
+	$whitelist = fopen("/var/db/whitelist", "w");
+	if(!$whitelist) {
+		log_error("Could not open /var/db/whitelist for writing.");
+		return;
+	}
+
+	/* build an interface array list */
+	$int_array = array('lan');
+	for ($j = 1; isset ($config['interfaces']['opt' . $j]); $j++)
+		if(isset($config['interfaces']['opt' . $j]['enable']))
+			if(!$config['interfaces']['opt' . $j]['gateway'])
+				$int_array[] = "opt{$j}";
+
+	/*  iterate through interface list and write out whitelist items
+	 *  and also compile a home_net list for snort.
+	 */
+	foreach($int_array as $int) {
+		/* calculate interface subnet information */
+		$ifcfg = &$config['interfaces'][$int];
+		$subnet = gen_subnet($ifcfg['ipaddr'], $ifcfg['subnet']);
+		$subnetmask = gen_subnet_mask($ifcfg['subnet']);
+		if($subnet == "pppoe" or $subnet == "dhcp") {
+			$subnet = find_interface_ip("ng0");
+			if($subnet)
+				$home_net .= "{$subnet} ";
+		} else {
+			if ($subnet)
+				if($ifcfg['subnet']) 
+					$home_net .= "{$subnet}/{$ifcfg['subnet']} ";
+		}
+	}
+
+	/* add all WAN ips to the whitelist */
+	$wan_if = get_real_wan_interface();
+	$ip = find_interface_ip($wan_if);
+	if($ip) 
+		$home_net .= "{$ip} ";
+	
+	/* Add Gateway on WAN interface to whitelist (For RRD graphs) */
+	$int = convert_friendly_interface_to_real_interface_name("WAN");
+	$gw = get_interface_gateway($int);
+	if($gw) 
+		$home_net .= "{$gw} ";
+	
+	/* Add DNS server for WAN interface to whitelist */
+	$dns_servers = get_dns_servers();
+	foreach($dns_servers as $dns) {
+		if($dns) 
+			$home_net .= "{$dns} ";		
+	}
+		
+	/* Add loopback to whitelist (ftphelper) */
+	$home_net .= "127.0.0.1 "; 	
+	
+	/* iterate all vips and add to whitelist */
+	if($config['virtualip'])
+		foreach($config['virtualip']['vip'] as $vip)
+			if($vip['subnet']) 
+				$home_net .= $vip['subnet'] . " ";
+
+	if($config['installedpackages']['snortwhitelist'])
+		foreach($config['installedpackages']['snortwhitelist']['config'] as $snort)
+			if($snort['ip']) 
+				$home_net .= $snort['ip'] . " ";
+
+	/* write out whitelist, convert spaces to carriage returns */
+	$whitelist_home_net = str_replace("  ", " ", $home_net);
+	$whitelist_home_net = str_replace(" ", "\n", $home_net);
+
+	/* make $home_net presentable to snort */
+	$home_net = trim($home_net);
+	$home_net = str_replace(" ", ",", $home_net);
+	$home_net = "[{$home_net}]";
+
+	/* foreach through whitelist, writing out to file */
+	$whitelist_split = split("\n", $whitelist_home_net);
+	foreach($whitelist_split as $wl)
+		if(trim($wl))
+			fwrite($whitelist, trim($wl) . "\n");
+
+	/* should we whitelist vpns? */
+	$whitelistvpns = $config['installedpackages']['snort']['config'][0]['whitelistvpns'];
+
+	/* grab a list of vpns and whitelist if user desires */
+	if($whitelistvpns) {
+		$vpns_list = get_vpns_list();
+		$whitelist_vpns = split(" ", $vpns_list);
+		foreach($whitelist_split as $wl)
+			if(trim($wl))
+				fwrite($whitelist, trim($wl) . "\n");
+	}
+
+	/* close file */
+	fclose($whitelist);
+
+     /* open snort's threshold.conf for writing */
+     $threshlist = fopen("/usr/local/etc/snort/threshold.conf", "w");
+     if(!$threshlist) {
+             log_error("Could not open /usr/local/etc/snort/threshold.conf for writing.");
+             return;
+    }
+
+     /* list all entries to new lines  */
+    if($config['installedpackages']['snortthreshold'])
+            foreach($config['installedpackages']['snortthreshold']['config'] as $snortthreshlist)
+                    if($snortthreshlist['threshrule'])
+                             $snortthreshlist_r .= $snortthreshlist['threshrule'] . "\n";
+
+
+     /* foreach through threshlist, writing out to file */
+     $threshlist_split = split("\n", $snortthreshlist_r);
+     foreach($threshlist_split as $wl)
+             if(trim($wl))
+                     fwrite($threshlist, trim($wl) . "\n");
+
+     /* close snort's threshold.conf file */
+     fclose($threshlist);	
+
+	/* generate rule sections to load */
+	$enabled_rulesets = $config['installedpackages']['snort']['rulesets'];
+	if($enabled_rulesets) {
+		$selected_rules_sections = "";
+		$enabled_rulesets_array = split("\|\|", $enabled_rulesets);
+		foreach($enabled_rulesets_array as $enabled_item)
+			$selected_rules_sections  .= "include \$RULE_PATH/{$enabled_item}\n";
+	}
+
+	conf_mount_ro();
+
+	/* build snort configuration file */
+        /* TODO; feed back from pfsense users to reduce false positives */
+	$snort_conf_text = <<<EOD
+
+# snort configuration file
+# generated by the pfSense
+# package manager system
+# see /usr/local/pkg/snort.inc
+# for more information
+
+#########################
+                        #
+# Define Local Network  #
+                        #
+#########################
+
+var HOME_NET {$home_net}
+var EXTERNAL_NET !\$HOME_NET
+
+###################
+                  #
+# Define Servers  #
+                  #
+###################
+
+var DNS_SERVERS [{$def_dns_servers_type}]
+var SMTP_SERVERS [{$def_smtp_servers_type}]
+var HTTP_SERVERS [{$def_http_servers_type}]
+var SQL_SERVERS [{$def_sql_servers_type}]
+var TELNET_SERVERS [{$def_telnet_servers_type}]
+var SNMP_SERVERS [{$def_snmp_servers_type}]
+var FTP_SERVERS [{$def_ftp_servers_type}]
+var SSH_SERVERS [{$def_ssh_servers_type}]
+var POP_SERVERS [{$def_pop_servers_type}]
+var IMAP_SERVERS [{$def_imap_servers_type}]
+var RPC_SERVERS \$HOME_NET
+var WWW_SERVERS [{$def_www_servers_type}]
+var SIP_PROXY_IP [{$def_sip_proxy_ip_type}]
+var AIM_SERVERS \
+[64.12.24.0/23,64.12.28.0/23,64.12.161.0/24,64.12.163.0/24,64.12.200.0/24,205.188.3.0/24,205.188.5.0/24,205.188.7.0/24,205.188.9.0/24,205.188.153.0/24,205.188.179.0/24,205.188.248.0/24]
+
+########################
+                       #
+# Define Server Ports  #
+                       #
+########################
+
+portvar HTTP_PORTS [{$def_http_ports_type}]
+portvar SHELLCODE_PORTS !80
+portvar ORACLE_PORTS [{$def_oracle_ports_type}]
+portvar AUTH_PORTS [{$def_auth_ports_type}]
+portvar DNS_PORTS [{$def_dns_ports_type}]
+portvar FINGER_PORTS [{$def_finger_ports_type}]
+portvar FTP_PORTS [{$def_ftp_ports_type}]
+portvar IMAP_PORTS [{$def_imap_ports_type}]
+portvar IRC_PORTS [{$def_irc_ports_type}]
+portvar MSSQL_PORTS [{$def_mssql_ports_type}]
+portvar NNTP_PORTS [{$def_nntp_ports_type}]
+portvar POP2_PORTS [{$def_pop2_ports_type}]
+portvar POP3_PORTS [{$def_pop3_ports_type}]
+portvar SUNRPC_PORTS [111,32770,32771,32772,32773,32774,32775,32776,32777,32778,32779]
+portvar RLOGIN_PORTS [{$def_rlogin_ports_type}]
+portvar RSH_PORTS [{$def_rsh_ports_type}]
+portvar SMB_PORTS [139,445]
+portvar SMTP_PORTS [{$def_smtp_ports_type}]
+portvar SNMP_PORTS [{$def_snmp_ports_type}]
+portvar SSH_PORTS [{$def_ssh_ports_type}]
+portvar TELNET_PORTS [{$def_telnet_ports_type}]
+portvar MAIL_PORTS [{$def_mail_ports_type}]
+portvar SSL_PORTS [{$def_ssl_ports_type}]
+portvar SIP_PROXY_PORTS [{$def_sip_proxy_ports_type}]
+
+# DCERPC NCACN-IP-TCP
+portvar DCERPC_NCACN_IP_TCP [139,445]
+portvar DCERPC_NCADG_IP_UDP [138,1024:]
+portvar DCERPC_NCACN_IP_LONG [135,139,445,593,1024:]
+portvar DCERPC_NCACN_UDP_LONG [135,1024:]
+portvar DCERPC_NCACN_UDP_SHORT [135,593,1024:]
+portvar DCERPC_NCACN_TCP [2103,2105,2107]
+portvar DCERPC_BRIGHTSTORE [6503,6504]
+
+#####################
+                    #
+# Define Rule Paths #
+                    #
+#####################
+
+var RULE_PATH /usr/local/etc/snort/rules
+# var PREPROC_RULE_PATH ./preproc_rules
+
+################################
+                               #
+# Configure the snort decoder  #
+                               #
+################################
+
+config checksum_mode: all
+config disable_decode_alerts
+config disable_tcpopt_experimental_alerts
+config disable_tcpopt_obsolete_alerts
+config disable_ttcp_alerts
+config disable_tcpopt_alerts
+config disable_ipopt_alerts
+config disable_decode_drops
+
+###################################
+                                  #
+# Configure the detection engine  #
+# Use lower memory models         #
+                                  #
+###################################
+
+config detection: search-method {$snort_performance}
+config detection: max_queue_events 5
+config event_queue: max_queue 8 log 3 order_events content_length
+
+#Configure dynamic loaded libraries
+dynamicpreprocessor directory /usr/local/lib/snort/dynamicpreprocessor/
+dynamicengine /usr/local/lib/snort/dynamicengine/libsf_engine.so
+dynamicdetection directory /usr/local/lib/snort/dynamicrules/
+
+###################
+                  #
+# Flow and stream #
+                  #
+###################
+
+preprocessor frag3_global: max_frags 8192
+preprocessor frag3_engine: policy windows
+preprocessor frag3_engine: policy linux
+preprocessor frag3_engine: policy first
+preprocessor frag3_engine: policy bsd detect_anomalies
+
+preprocessor stream5_global: max_tcp 8192, track_tcp yes, \
+track_udp yes, track_icmp yes
+preprocessor stream5_tcp: bind_to any, policy windows
+preprocessor stream5_tcp: bind_to any, policy linux
+preprocessor stream5_tcp: bind_to any, policy vista
+preprocessor stream5_tcp: bind_to any, policy macos
+preprocessor stream5_tcp: policy BSD, ports both all, use_static_footprint_sizes
+preprocessor stream5_udp
+preprocessor stream5_icmp
+
+##########################
+                         #
+# NEW                    #
+# Performance Statistics #
+                         #
+##########################
+
+preprocessor perfmonitor: time 300 file /var/log/snort/snort.stats pktcnt 10000
+
+#################
+                #
+# HTTP Inspect  #
+                #
+#################
+
+preprocessor http_inspect: global iis_unicode_map unicode.map 1252
+
+preprocessor http_inspect_server: server default \
+                        ports  { 80 8080 3128 }  \
+                        no_alerts \
+                        non_strict \
+                        non_rfc_char  { 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 }  \
+                        flow_depth 0  \
+                        apache_whitespace yes \
+                        directory no \
+                        iis_backslash no \
+                        u_encode yes \
+                        ascii yes \
+                        chunk_length 500000 \
+                        bare_byte yes \
+                        double_decode yes \
+                        iis_unicode yes \
+                        iis_delimiter yes \
+                        multi_slash no
+
+##################
+                 #
+# Other preprocs #
+                 #
+##################
+
+preprocessor rpc_decode: 111 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779
+preprocessor bo
+
+#####################
+                    #
+# ftp preprocessor  #
+                    #
+#####################
+
+preprocessor ftp_telnet: global \
+inspection_type stateless
+
+preprocessor ftp_telnet_protocol: telnet \
+   normalize \
+   ayt_attack_thresh 200
+
+preprocessor ftp_telnet_protocol: \
+    ftp server default \
+    def_max_param_len 100 \
+    ports { 21 } \
+    ftp_cmds { USER PASS ACCT CWD SDUP SMNT QUIT REIN PORT PASV TYPE STRU MODE } \
+    ftp_cmds { RETR STOR STOU APPE ALLO REST RNFR RNTO ABOR DELE RMD MKD PWD } \
+    ftp_cmds { LIST NLST SITE SYST STAT HELP NOOP } \
+    ftp_cmds { AUTH ADAT PROT PBSZ CONF ENC } \
+    ftp_cmds { FEAT CEL CMD MACB } \
+    ftp_cmds { MDTM REST SIZE MLST MLSD } \
+    ftp_cmds { XPWD XCWD XCUP XMKD XRMD TEST CLNT } \
+    alt_max_param_len 0 { CDUP QUIT REIN PASV STOU ABOR PWD SYST NOOP } \
+    alt_max_param_len 100 { MDTM CEL XCWD SITE USER PASS REST DELE RMD SYST TEST STAT MACB EPSV CLNT LPRT } \
+    alt_max_param_len 200 { XMKD NLST ALLO STOU APPE RETR STOR CMD RNFR HELP } \
+    alt_max_param_len 256 { RNTO CWD } \
+    alt_max_param_len 400 { PORT } \
+    alt_max_param_len 512 { SIZE } \
+    chk_str_fmt { USER PASS ACCT CWD SDUP SMNT PORT TYPE STRU MODE } \
+    chk_str_fmt { RETR STOR STOU APPE ALLO REST RNFR RNTO DELE RMD MKD } \
+    chk_str_fmt { LIST NLST SITE SYST STAT HELP } \
+    chk_str_fmt { AUTH ADAT PROT PBSZ CONF ENC } \
+    chk_str_fmt { FEAT CEL CMD } \
+    chk_str_fmt { MDTM REST SIZE MLST MLSD } \
+    chk_str_fmt { XPWD XCWD XCUP XMKD XRMD TEST CLNT } \
+    cmd_validity MODE < char ASBCZ > \
+    cmd_validity STRU < char FRP > \
+    cmd_validity ALLO < int [ char R int ] > \
+    cmd_validity TYPE < { char AE [ char NTC ] | char I | char L [ number ] } > \
+    cmd_validity MDTM < [ date nnnnnnnnnnnnnn[.n[n[n]]] ] string > \
+    cmd_validity PORT < host_port >
+
+preprocessor ftp_telnet_protocol: ftp client default \
+   max_resp_len 256 \
+   bounce yes \
+   telnet_cmds yes
+
+#####################
+                    #
+# SMTP preprocessor #
+                    #
+#####################
+
+preprocessor SMTP: \
+    ports { 25 465 691 } \
+    inspection_type stateful \
+    normalize cmds \
+    valid_cmds { MAIL RCPT HELP HELO ETRN EHLO EXPN VRFY ATRN SIZE BDAT DEBUG EMAL ESAM ESND ESOM EVFY IDENT NOOP RSET SEND SAML SOML AUTH TURN ETRN PIPELINING \
+CHUNKING DATA DSN RSET QUIT ONEX QUEU STARTTLS TICK TIME TURNME VERB X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE XQUEU XSTA XTRN XUSR } \
+    normalize_cmds { MAIL RCPT HELP HELO ETRN EHLO EXPN VRFY ATRN SIZE BDAT DEBUG EMAL ESAM ESND ESOM EVFY IDENT NOOP RSET SEND SAML SOML AUTH TURN ETRN \
+PIPELINING CHUNKING DATA DSN RSET QUIT ONEX QUEU STARTTLS TICK TIME TURNME VERB X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE XQUEU XSTA XTRN XUSR } \
+    max_header_line_len 1000 \ 
+    max_response_line_len 512 \
+    alt_max_command_line_len 260 { MAIL } \
+    alt_max_command_line_len 300 { RCPT } \
+    alt_max_command_line_len 500 { HELP HELO ETRN EHLO } \
+    alt_max_command_line_len 255 { EXPN VRFY ATRN SIZE BDAT DEBUG EMAL ESAM ESND ESOM EVFY IDENT NOOP RSET } \
+    alt_max_command_line_len 246 { SEND SAML SOML AUTH TURN ETRN PIPELINING CHUNKING DATA DSN RSET QUIT ONEX } \
+    alt_max_command_line_len 246 { QUEU STARTTLS TICK TIME TURNME VERB X-EXPS X-LINK2STATE XADR } \
+    alt_max_command_line_len 246 { XAUTH XCIR XEXCH50 XGEN XLICENSE XQUEU XSTA XTRN XUSR } \
+    xlink2state { enable }
+
+################
+               #
+# sf Portscan  #
+               #
+################
+
+preprocessor sfportscan: scan_type { all } \
+                         proto  { all } \
+                         memcap { 10000000 } \
+                         sense_level { medium } \
+                         ignore_scanners { \$HOME_NET }
+
+############################
+                           #
+# OLD                      #
+# preprocessor dcerpc: \   #
+#    autodetect \          #
+#    max_frag_size 3000 \  #
+#    memcap 100000         #
+                           #
+############################
+
+###############
+              #
+# NEW         #
+# DCE/RPC 2   #
+              #
+###############
+
+preprocessor dcerpc2: memcap 102400, events [smb, co, cl]
+preprocessor dcerpc2_server: default, policy WinXP, \
+    detect [smb [139,445], tcp 135, udp 135, rpc-over-http-server 593], \
+    autodetect [tcp 1025:, udp 1025:, rpc-over-http-server 1025:], \
+    smb_max_chain 3
+
+####################
+                   #
+# DNS preprocessor #
+                   #
+####################
+
+preprocessor dns: \
+    ports { 53 } \
+    enable_rdata_overflow
+
+##############################
+                             #
+# NEW                        #
+# Ignore SSL and Encryption  #
+                             #
+##############################
+
+preprocessor ssl: ports { 443 465 563 636 989 992 993 994 995 }, trustservers, noinspect_encrypted
+
+#####################
+                    #
+# Snort Output Logs #
+                    #
+#####################
+
+$snortalertlogtype_type
+$alertsystemlog_type
+$tcpdumplog_type
+$snortmysqllog_info_chk
+$snortunifiedlog_type
+						
+#################
+                #
+# Misc Includes #
+                #
+#################
+
+include /usr/local/etc/snort/reference.config
+include /usr/local/etc/snort/classification.config
+include /usr/local/etc/snort/threshold.conf
+
+# Snort user pass through configuration
+{$snort_config_pass_thru}
+
+###################
+                  #
+# Rules Selection #
+                  #
+###################
+
+{$selected_rules_sections}
+
+EOD;
+
+	return $snort_conf_text;
+}
+
+/*   check downloaded text from snort.org to make sure that an error did not occur
+ *   for example, if you are not a premium subscriber you can only download rules
+ *   so often, etc.
+ */
+function check_for_common_errors($filename) {
+	global $snort_filename, $snort_filename_md5, $console_mode;
+	ob_flush();
+	$contents = file_get_contents($filename);
+	if(stristr($contents, "You don't have permission")) {
+		if(!$console_mode) {
+			update_all_status("An error occured while downloading {$filename}.");
+			hide_progress_bar_status();
+		} else {
+			log_error("An error occured.  Scroll down to inspect it's contents.");
+			echo "An error occured.  Scroll down to inspect it's contents.";
+		}
+		if(!$console_mode) {
+			update_output_window(strip_tags("$contents"));
+		} else {
+			$contents = strip_tags($contents);
+			log_error("Error downloading snort rules: {$contents}");
+			echo "Error downloading snort rules: {$contents}";
+		}
+		scroll_down_to_bottom_of_page();
+		exit;
+	}
+}
+
+/* force browser to scroll all the way down */
+function scroll_down_to_bottom_of_page() {
+	global $snort_filename, $console_mode;
+	ob_flush();
+	if(!$console_mode)
+		echo "\n<script type=\"text/javascript\">parent.scrollTo(0,1500);\n</script>";
+}
+
+/* ensure downloaded file looks sane */
+function verify_downloaded_file($filename) {
+	global $snort_filename, $snort_filename_md5, $console_mode;
+	ob_flush();
+	if(filesize($filename)<9500) {
+		if(!$console_mode) {
+			update_all_status("Checking {$filename}...");
+			check_for_common_errors($filename);
+		}
+	}
+	update_all_status("Verifying {$filename}...");
+	if(!file_exists($filename)) {
+		if(!$console_mode) {
+			update_all_status("Could not fetch snort rules ({$filename}).  Check oinkid key and dns and try again.");
+			hide_progress_bar_status();
+		} else {
+			log_error("Could not fetch snort rules ({$filename}).  Check oinkid key and dns and try again.");
+			echo "Could not fetch snort rules ({$filename}).  Check oinkid key and dns and try again.";
+		}
+		exit;
+	}
+	update_all_status("Verifyied {$filename}.");
+}
+
+/* extract rules */
+function extract_snort_rules_md5($tmpfname) {
+	global $snort_filename, $snort_filename_md5, $console_mode;
+	ob_flush();
+	if(!$console_mode) {
+		$static_output = gettext("Extracting snort rules...");
+		update_all_status($static_output);
+	}
+	if(!is_dir("/usr/local/etc/snort/rules/"))
+		mkdir("/usr/local/etc/snort/rules/");
+	$cmd = "/usr/bin/tar xzf {$tmpfname}/{$snort_filename} -C /usr/local/etc/snort/ rules/";
+	$handle = popen("{$cmd} 2>&1", 'r');
+	while(!feof($handle)) {
+		$buffer = fgets($handle);
+		update_output_window($buffer);
+	}
+	pclose($handle);	
+
+	if(!$console_mode) {
+		$static_output = gettext("Snort rules extracted.");
+		update_all_status($static_output);
+	} else {
+		log_error("Snort rules extracted.");
+		echo "Snort rules extracted.";
+	}
+}
+
+/* verify MD5 against downloaded item */
+function verify_snort_rules_md5($tmpfname) {
+	global $snort_filename, $snort_filename_md5, $console_mode;
+	ob_flush();
+	if(!$console_mode) {
+		$static_output = gettext("Verifying md5 signature...");
+		update_all_status($static_output);
+	}
+
+        $md555 = file_get_contents("{$tmpfname}/{$snort_filename_md5}");
+        $md5 = `/bin/echo "{$md555}" | /usr/bin/awk '{ print $4 }'`;
+	$file_md5_ondisk = `/sbin/md5 {$tmpfname}/{$snort_filename} | /usr/bin/awk '{ print $4 }'`;
+	if($md5 == $file_md5_ondisk) {
+		if(!$console_mode) {
+			$static_output = gettext("snort rules: md5 signature of rules mismatch.");
+			update_all_status($static_output);
+			hide_progress_bar_status();
+		} else {
+			log_error("snort rules: md5 signature of rules mismatch.");
+			echo "snort rules: md5 signature of rules mismatch.";
+		}
+		exit;
+	}
+}
+
+/* hide progress bar */
+function hide_progress_bar_status() {
+	global $snort_filename, $snort_filename_md5, $console_mode;
+	ob_flush();
+	if(!$console_mode)
+		echo "\n<script type=\"text/javascript\">document.progressbar.style.visibility='hidden';\n</script>";
+}
+
+/* unhide progress bar */
+function unhide_progress_bar_status() {
+        global $snort_filename, $snort_filename_md5, $console_mode;
+        ob_flush();
+        if(!$console_mode)
+                echo "\n<script type=\"text/javascript\">document.progressbar.style.visibility='visible';\n</script>";
+}
+
+/* update both top and bottom text box during an operation */
+function update_all_status($status) {
+	global $snort_filename, $snort_filename_md5, $console_mode;
+	ob_flush();
+	if(!$console_mode) {
+		update_status($status);
+		update_output_window($status);
+	}
+}
+
+/* obtain alert description for an ip address */
+function get_snort_alert($ip) {
+	global $snort_alert_file_split, $snort_config;
+	if(!file_exists("/var/log/snort/alert"))
+		return;
+	if(!$snort_config)
+		$snort_config = read_snort_config_cache();
+	if($snort_config[$ip])
+		return $snort_config[$ip];
+	if(!$snort_alert_file_split)
+		$snort_alert_file_split = split("\n", file_get_contents("/var/log/snort/alert"));
+	foreach($snort_alert_file_split as $fileline) {
+		if (preg_match("/\[\*\*\] (\[.*\]) (.*) (\[\*\*\])/", $fileline, $matches))
+			$alert_title = $matches[2];
+		if (preg_match("/(\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b)/", $fileline, $matches))
+			$alert_ip = $matches[0];
+		if($alert_ip == $ip) {
+			if(!$snort_config[$ip])
+				$snort_config[$ip] = $alert_title;
+			return $alert_title;
+		}
+	}
+	return "n/a";
+}
+
+function make_clickable($buffer) {
+    global $config, $g;
+    /* if clickable urls is disabled, simply return buffer back to caller */
+    $clickablalerteurls = $config['installedpackages']['snort']['config'][0]['oinkmastercode'];
+    if(!$clickablalerteurls)
+    	return $buffer;
+    $buffer = eregi_replace("(^|[ \n\r\t])((http(s?)://)(www\.)?([a-z0-9_-]+(\.[a-z0-9_-]+)+)(/[^/ \n\r]*)*)","\\1<a href=\"\\2\" target=\"_blank\">\\2</a>", $buffer);
+    $buffer = eregi_replace("(^|[ \n\r\t])((ftp://)(www\.)?([a-z0-9_-]+(\.[a-z0-9_-]+)+)(/[^/ \n\r]*)*)","\\1<a href=\"\\2\" target=\"_blank\">\\2</a>", $buffer);
+    $buffer = eregi_replace("([a-z_-][a-z0-9\._-]*@[a-z0-9_-]+(\.[a-z0-9_-]+)+)","<a href=\"mailto:\\1\">\\1</a>", $buffer);
+    $buffer = eregi_replace("(^|[ \n\r\t])(www\.([a-z0-9_-]+(\.[a-z0-9_-]+)+)(/[^/ \n\r]*)*)","\\1<a href=\"http://\\2\" target=\"_blank\">\\2</a>", $buffer);
+    $buffer = eregi_replace("(^|[ \n\r\t])(ftp\.([a-z0-9_-]+(\.[a-z0-9_-]+)+)(/[^/ \n\r]*)*)","\\1<a href=\"ftp://\\2\" target=\"_blank\">\\2</a>", $buffer);
+
+    return $buffer;
+}
+
+function read_snort_config_cache() {
+	global $g, $config, $snort_config;
+	if($snort_config)
+		return $snort_config;
+	if(file_exists($g['tmp_path'] . '/snort_config.cache')) {
+		$snort_config = unserialize(file_get_contents($g['tmp_path'] . '/snort_config.cache'));
+		return $snort_config;
+	}
+	return;
+}
+
+function write_snort_config_cache($snort_config) {
+	global $g, $config;
+	conf_mount_rw();
+	$configcache = fopen($g['tmp_path'] . '/snort_config.cache', "w");
+	if(!$configcache) {
+		log_error("Could not open {$g['tmp_path']}/snort_config.cache  for writing.");
+		return false;
+	}
+	fwrite($configcache, serialize($snort_config));
+	fclose($configcache);
+	conf_mount_ro();
+	return true;
+}
+
+function snort_advanced() {
+	global $g, $config;
+	sync_package_snort();
+}
+
+function snort_define_servers() {
+	global $g, $config;
+	sync_package_snort();
+}
+
+?>