Move main pfSense content to src/

1 files changed, 2541 insertions, 0 deletions

diff --git a/src/etc/inc/services.inc b/src/etc/inc/services.inc
new file mode 100644
index 0000000..c254c35
--- /dev/null
+++ b/src/etc/inc/services.inc
@@ -0,0 +1,2541 @@
+<?php
+/*
+	services.inc
+	part of the pfSense project (https://www.pfsense.org)
+
+	originally part of m0n0wall (http://m0n0.ch/wall)
+	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
+	Copyright (C) 2010	Ermal Luçi
+	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.
+*/
+
+/*
+	pfSense_BUILDER_BINARIES:	/usr/bin/killall	/bin/pgrep	/bin/sh	/usr/local/sbin/dhcpd	/usr/local/sbin/igmpproxy
+	pfSense_BUILDER_BINARIES:	/sbin/ifconfig		/usr/local/sbin/dnsmasq
+	pfSense_BUILDER_BINARIES:	/usr/local/sbin/miniupnpd	/usr/sbin/radvd
+	pfSense_BUILDER_BINARIES:	/usr/local/sbin/dhcleases6	/usr/sbin/bsnmpd
+	pfSense_MODULE:	utils
+*/
+
+define('DYNDNS_PROVIDER_VALUES', 'citynetwork cloudflare custom custom-v6 dhs dnsexit dnsimple dnsmadeeasy dnsomatic dyndns dyndns-custom dyndns-static dyns easydns eurodns freedns glesys googledomains gratisdns he-net he-net-v6 he-net-tunnelbroker loopia namecheap noip noip-free ods opendns ovh-dynhost route53 selfhost zoneedit');
+define('DYNDNS_PROVIDER_DESCRIPTIONS', 'City Network,CloudFlare,Custom,Custom (v6),DHS,DNSexit,DNSimple,DNS Made Easy,DNS-O-Matic,DynDNS (dynamic),DynDNS (custom),DynDNS (static),DyNS,easyDNS,Euro Dns,freeDNS,GleSYS,Google Domains,GratisDNS,HE.net,HE.net (v6),HE.net Tunnelbroker,Loopia,Namecheap,No-IP,No-IP (free),ODS.org,OpenDNS,OVH DynHOST,Route 53,SelfHost,ZoneEdit');
+
+/* implement ipv6 route advertising daemon */
+function services_radvd_configure($blacklist = array()) {
+	global $config, $g;
+
+	if (isset($config['system']['developerspew'])) {
+		$mt = microtime();
+		echo "services_radvd_configure() being called $mt\n";
+	}
+
+	if (!is_array($config['dhcpdv6'])) {
+		$config['dhcpdv6'] = array();
+	}
+
+	$Iflist = get_configured_interface_list();
+	$Iflist = array_merge($Iflist, get_configured_pppoe_server_interfaces());
+	$carplist = get_configured_carp_interface_list();
+
+	$radvdconf = "# Automatically Generated, do not edit\n";
+
+	/* Process all links which need the router advertise daemon */
+	$radvdifs = array();
+
+	/* handle manually configured DHCP6 server settings first */
+	foreach ($config['dhcpdv6'] as $dhcpv6if => $dhcpv6ifconf) {
+		if (!is_array($config['interfaces'][$dhcpv6if])) {
+			continue;
+		}
+		if (!isset($config['interfaces'][$dhcpv6if]['enable'])) {
+			continue;
+		}
+
+		/* Do not put in the config an interface which is down */
+		if (isset($blacklist[$dhcpv6if])) {
+			continue;
+		}
+		if (!isset($dhcpv6ifconf['ramode'])) {
+			$dhcpv6ifconf['ramode'] = $dhcpv6ifconf['mode'];
+		}
+
+		/* are router advertisements enabled? */
+		if ($dhcpv6ifconf['ramode'] == "disabled") {
+			continue;
+		}
+
+		if (!isset($dhcpv6ifconf['rapriority'])) {
+			$dhcpv6ifconf['rapriority'] = "medium";
+		}
+
+		/* always start with the real parent, we override with the carp if later */
+		$carpif = false;
+		/* check if we need to listen on a CARP interface */
+		if (!empty($dhcpv6ifconf['rainterface'])) {
+			if (!empty($carplist[$dhcpv6ifconf['rainterface']])) {
+				$dhcpv6if = $dhcpv6ifconf['rainterface'];
+				$carpif = true;
+			}
+		}
+
+		if (strstr($dhcpv6if, "_vip")) {
+			// CARP IP, check if it's enabled and find parent
+			if (!get_carp_status() || get_carp_interface_status($dhcpv6if) != "MASTER") {
+				continue;
+			}
+			$ifparent = link_carp_interface_to_parent($dhcpv6if);
+			$realif = convert_friendly_interface_to_real_interface_name($ifparent);
+		} else {
+			$realif = get_real_interface($dhcpv6if, "inet6");
+		}
+
+		if (isset($radvdifs[$realif])) {
+			continue;
+		}
+
+		$ifcfgipv6 = get_interface_ipv6($dhcpv6if);
+		if (!is_ipaddrv6($ifcfgipv6)) {
+			continue;
+		}
+
+		$ifcfgsnv6 = get_interface_subnetv6($dhcpv6if);
+		$subnetv6 = gen_subnetv6($ifcfgipv6, $ifcfgsnv6);
+		$radvdifs[$realif] = $realif;
+
+		$radvdconf .= "# Generated for DHCPv6 Server $dhcpv6if\n";
+		$radvdconf .= "interface {$realif} {\n";
+		if (strstr($realif, "ovpn")) {
+			$radvdconf .= "\tUnicastOnly on;\n";
+		}
+		$radvdconf .= "\tAdvSendAdvert on;\n";
+		$radvdconf .= "\tMinRtrAdvInterval 5;\n";
+		$radvdconf .= "\tMaxRtrAdvInterval 20;\n";
+		$mtu = get_interface_mtu($realif);
+		if (is_numeric($mtu)) {
+			$radvdconf .= "\tAdvLinkMTU {$mtu};\n";
+		} else {
+			$radvdconf .= "\tAdvLinkMTU 1280;\n";
+		}
+		// $radvdconf .= "\tDeprecatePrefix on;\n";
+		switch ($dhcpv6ifconf['rapriority']) {
+			case "low":
+				$radvdconf .= "\tAdvDefaultPreference low;\n";
+				break;
+			case "high":
+				$radvdconf .= "\tAdvDefaultPreference high;\n";
+				break;
+			default:
+				$radvdconf .= "\tAdvDefaultPreference medium;\n";
+				break;
+		}
+		switch ($dhcpv6ifconf['ramode']) {
+			case "managed":
+			case "assist":
+				$radvdconf .= "\tAdvManagedFlag on;\n";
+				$radvdconf .= "\tAdvOtherConfigFlag on;\n";
+				break;
+			case "stateless_dhcp":
+				$radvdconf .= "\tAdvManagedFlag off;\n";
+				$radvdconf .= "\tAdvOtherConfigFlag on;\n";
+				break;
+		}
+		$radvdconf .= "\tprefix {$subnetv6}/{$ifcfgsnv6} {\n";
+		if ($carpif == true) {
+			$radvdconf .= "\t\tDeprecatePrefix off;\n";
+		} else {
+			$radvdconf .= "\t\tDeprecatePrefix on;\n";
+		}
+		switch ($dhcpv6ifconf['ramode']) {
+			case "managed":
+				$radvdconf .= "\t\tAdvOnLink on;\n";
+				$radvdconf .= "\t\tAdvAutonomous off;\n";
+				$radvdconf .= "\t\tAdvRouterAddr on;\n";
+				break;
+			case "router":
+				$radvdconf .= "\t\tAdvOnLink off;\n";
+				$radvdconf .= "\t\tAdvAutonomous off;\n";
+				$radvdconf .= "\t\tAdvRouterAddr on;\n";
+				break;
+			case "stateless_dhcp":
+			case "assist":
+				$radvdconf .= "\t\tAdvOnLink on;\n";
+				$radvdconf .= "\t\tAdvAutonomous on;\n";
+				$radvdconf .= "\t\tAdvRouterAddr on;\n";
+				break;
+			case "unmanaged":
+				$radvdconf .= "\t\tAdvOnLink on;\n";
+				$radvdconf .= "\t\tAdvAutonomous on;\n";
+				$radvdconf .= "\t\tAdvRouterAddr on;\n";
+				break;
+		}
+		$radvdconf .= "\t};\n";
+
+		if (is_array($dhcpv6ifconf['subnets']['item'])) {
+			foreach ($dhcpv6ifconf['subnets']['item'] as $subnet) {
+				if (is_subnetv6($subnet)) {
+					$radvdconf .= "\tprefix {$subnet} {\n";
+					if ($carpif == true) {
+						$radvdconf .= "\t\tDeprecatePrefix off;\n";
+					} else {
+						$radvdconf .= "\t\tDeprecatePrefix on;\n";
+					}
+					switch ($dhcpv6ifconf['ramode']) {
+						case "managed":
+							$radvdconf .= "\t\tAdvOnLink on;\n";
+							$radvdconf .= "\t\tAdvAutonomous off;\n";
+							$radvdconf .= "\t\tAdvRouterAddr on;\n";
+							break;
+						case "router":
+							$radvdconf .= "\t\tAdvOnLink off;\n";
+							$radvdconf .= "\t\tAdvAutonomous off;\n";
+							$radvdconf .= "\t\tAdvRouterAddr on;\n";
+							break;
+						case "assist":
+							$radvdconf .= "\t\tAdvOnLink on;\n";
+							$radvdconf .= "\t\tAdvAutonomous on;\n";
+							$radvdconf .= "\t\tAdvRouterAddr on;\n";
+							break;
+						case "unmanaged":
+							$radvdconf .= "\t\tAdvOnLink on;\n";
+							$radvdconf .= "\t\tAdvAutonomous on;\n";
+							$radvdconf .= "\t\tAdvRouterAddr on;\n";
+							break;
+					}
+					$radvdconf .= "\t};\n";
+				}
+			}
+		}
+		if ($carpif === true) {
+			$radvdconf .= "\troute ::/0 {\n";
+			$radvdconf .= "\t\tRemoveRoute off;\n";
+			$radvdconf .= "\t};\n";
+		} else {
+			$radvdconf .= "\troute ::/0 {\n";
+			$radvdconf .= "\t\tRemoveRoute on;\n";
+			$radvdconf .= "\t};\n";
+		}
+
+		/* add DNS servers */
+		$dnslist = array();
+		if (isset($dhcpv6ifconf['rasamednsasdhcp6']) && is_array($dhcpv6ifconf['dnsserver']) && !empty($dhcpv6ifconf['dnsserver'])) {
+			foreach ($dhcpv6ifconf['dnsserver'] as $server) {
+				if (is_ipaddrv6($server)) {
+					$dnslist[] = $server;
+				}
+			}
+		} elseif (!isset($dhcpv6ifconf['rasamednsasdhcp6']) && isset($dhcpv6ifconf['radnsserver']) && is_array($dhcpv6ifconf['radnsserver'])) {
+			foreach ($dhcpv6ifconf['radnsserver'] as $server) {
+				if (is_ipaddrv6($server)) {
+					$dnslist[] = $server;
+				}
+			}
+		} elseif (isset($config['dnsmasq']['enable']) || isset($config['unbound']['enable'])) {
+			$dnslist[] = get_interface_ipv6($realif);
+		} elseif (is_array($config['system']['dnsserver']) && !empty($config['system']['dnsserver'])) {
+			foreach ($config['system']['dnsserver'] as $server) {
+				if (is_ipaddrv6($server)) {
+					$dnslist[] = $server;
+				}
+			}
+		}
+		if (count($dnslist) > 0) {
+			$dnsstring = implode(" ", $dnslist);
+			if ($dnsstring <> "") {
+				$radvdconf .= "\tRDNSS {$dnsstring} { };\n";
+			}
+		}
+		if (!empty($dhcpv6ifconf['domain'])) {
+			$radvdconf .= "\tDNSSL {$dhcpv6ifconf['domain']} { };\n";
+		} elseif (!empty($config['system']['domain'])) {
+			$radvdconf .= "\tDNSSL {$config['system']['domain']} { };\n";
+		}
+		$radvdconf .= "};\n";
+	}
+
+	/* handle DHCP-PD prefixes and 6RD dynamic interfaces */
+	foreach ($Iflist as $if => $ifdescr) {
+		if (!isset($config['interfaces'][$if]['track6-interface'])) {
+			continue;
+		}
+		if (!isset($config['interfaces'][$if]['enable'])) {
+			continue;
+		}
+		/* Do not put in the config an interface which is down */
+		if (isset($blacklist[$if])) {
+			continue;
+		}
+		$trackif = $config['interfaces'][$if]['track6-interface'];
+		if (empty($config['interfaces'][$trackif])) {
+			continue;
+		}
+
+		if (strstr($if, "_vip")) {
+			// CARP IP, find parent
+			$ifparent = link_carp_interface_to_parent($if);
+			$realif = convert_friendly_interface_to_real_interface_name($ifparent);
+		} else {
+			$realif = get_real_interface($if, "inet6");
+		}
+
+		/* prevent duplicate entries, manual overrides */
+		if (isset($radvdifs[$realif])) {
+			continue;
+		}
+
+		$ifcfgipv6 = get_interface_ipv6($if);
+		if (!is_ipaddrv6($ifcfgipv6)) {
+			$subnetv6 = "::";
+			$ifcfgsnv6 = "64";
+		} else {
+			$ifcfgsnv6 = get_interface_subnetv6($if);
+			$subnetv6 = gen_subnetv6($ifcfgipv6, $ifcfgsnv6);
+		}
+		$radvdifs[$realif] = $realif;
+
+		$autotype = $config['interfaces'][$trackif]['ipaddrv6'];
+
+		if ($g['debug']) {
+			log_error("configuring RA on {$if} for type {$autotype} radvd subnet {$subnetv6}/{$ifcfgsnv6}");
+		}
+
+		$radvdconf .= "# Generated config for {$autotype} delegation from {$trackif} on {$if}\n";
+		$radvdconf .= "interface {$realif} {\n";
+		$radvdconf .= "\tAdvSendAdvert on;\n";
+		$radvdconf .= "\tMinRtrAdvInterval 3;\n";
+		$radvdconf .= "\tMaxRtrAdvInterval 10;\n";
+		$mtu = get_interface_mtu($realif);
+		if (is_numeric($mtu)) {
+			$radvdconf .= "\tAdvLinkMTU {$mtu};\n";
+		} else {
+			$radvdconf .= "\tAdvLinkMTU 1280;\n";
+		}
+		$radvdconf .= "\tAdvOtherConfigFlag on;\n";
+		$radvdconf .= "\t\tprefix {$subnetv6}/{$ifcfgsnv6} {\n";
+		$radvdconf .= "\t\tAdvOnLink on;\n";
+		$radvdconf .= "\t\tAdvAutonomous on;\n";
+		$radvdconf .= "\t\tAdvRouterAddr on;\n";
+		$radvdconf .= "\t};\n";
+
+		/* add DNS servers */
+		$dnslist = array();
+		if (isset($config['dnsmasq']['enable']) || isset($config['unbound']['enable'])) {
+			$dnslist[] = $ifcfgipv6;
+		} elseif (is_array($config['system']['dnsserver']) && !empty($config['system']['dnsserver'])) {
+			foreach ($config['system']['dnsserver'] as $server) {
+				if (is_ipaddrv6($server)) {
+					$dnslist[] = $server;
+				}
+			}
+		}
+		if (count($dnslist) > 0) {
+			$dnsstring = implode(" ", $dnslist);
+			if (!empty($dnsstring)) {
+				$radvdconf .= "\tRDNSS {$dnsstring} { };\n";
+			}
+		}
+		if (!empty($config['system']['domain'])) {
+			$radvdconf .= "\tDNSSL {$config['system']['domain']} { };\n";
+		}
+		$radvdconf .= "};\n";
+	}
+
+	/* write radvd.conf */
+	if (!@file_put_contents("{$g['varetc_path']}/radvd.conf", $radvdconf)) {
+		log_error("Error: cannot open radvd.conf in services_radvd_configure().\n");
+		if (platform_booting()) {
+			printf("Error: cannot open radvd.conf in services_radvd_configure().\n");
+		}
+	}
+	unset($radvdconf);
+
+	if (count($radvdifs) > 0) {
+		if (isvalidpid("{$g['varrun_path']}/radvd.pid")) {
+			sigkillbypid("{$g['varrun_path']}/radvd.pid", "HUP");
+		} else {
+			mwexec("/usr/local/sbin/radvd -p {$g['varrun_path']}/radvd.pid -C {$g['varetc_path']}/radvd.conf -m syslog");
+		}
+	} else {
+		/* we need to shut down the radvd cleanly, it will send out the prefix
+		 * information with a lifetime of 0 to notify clients of a (possible) new prefix */
+		if (isvalidpid("{$g['varrun_path']}/radvd.pid")) {
+			log_error("Shutting down Router Advertisment daemon cleanly");
+			killbypid("{$g['varrun_path']}/radvd.pid");
+			@unlink("{$g['varrun_path']}/radvd.pid");
+		}
+	}
+	return 0;
+}
+
+function services_dhcpd_configure($family = "all", $blacklist = array()) {
+	global $config, $g;
+
+	/* configure DHCPD chroot once */
+	$fd = fopen("{$g['tmp_path']}/dhcpd.sh", "w");
+	fwrite($fd, "/bin/mkdir -p {$g['dhcpd_chroot_path']}\n");
+	fwrite($fd, "/bin/mkdir -p {$g['dhcpd_chroot_path']}/dev\n");
+	fwrite($fd, "/bin/mkdir -p {$g['dhcpd_chroot_path']}/etc\n");
+	fwrite($fd, "/bin/mkdir -p {$g['dhcpd_chroot_path']}/usr/local/sbin\n");
+	fwrite($fd, "/bin/mkdir -p {$g['dhcpd_chroot_path']}/var/db\n");
+	fwrite($fd, "/bin/mkdir -p {$g['dhcpd_chroot_path']}/var/run\n");
+	fwrite($fd, "/bin/mkdir -p {$g['dhcpd_chroot_path']}/usr\n");
+	fwrite($fd, "/bin/mkdir -p {$g['dhcpd_chroot_path']}/lib\n");
+	fwrite($fd, "/bin/mkdir -p {$g['dhcpd_chroot_path']}/run\n");
+	fwrite($fd, "/usr/sbin/chown -R dhcpd:_dhcp {$g['dhcpd_chroot_path']}/*\n");
+	fwrite($fd, "/bin/cp -n /lib/libc.so.* {$g['dhcpd_chroot_path']}/lib/\n");
+	fwrite($fd, "/bin/cp -n /usr/local/sbin/dhcpd {$g['dhcpd_chroot_path']}/usr/local/sbin/\n");
+	fwrite($fd, "/bin/chmod a+rx {$g['dhcpd_chroot_path']}/usr/local/sbin/dhcpd\n");
+
+	$status = `/sbin/mount | /usr/bin/grep -v grep | /usr/bin/grep "{$g['dhcpd_chroot_path']}/dev"`;
+	if (!trim($status)) {
+		fwrite($fd, "/sbin/mount -t devfs devfs {$g['dhcpd_chroot_path']}/dev\n");
+	}
+	fclose($fd);
+	mwexec("/bin/sh {$g['tmp_path']}/dhcpd.sh");
+
+	if ($family == "all" || $family == "inet") {
+		services_dhcpdv4_configure();
+	}
+	if ($family == "all" || $family == "inet6") {
+		services_dhcpdv6_configure($blacklist);
+		services_radvd_configure($blacklist);
+	}
+}
+
+function services_dhcpdv4_configure() {
+	global $config, $g;
+	$need_ddns_updates = false;
+	$ddns_zones = array();
+
+	if ($g['services_dhcp_server_enable'] == false) {
+		return;
+	}
+
+	if (isset($config['system']['developerspew'])) {
+		$mt = microtime();
+		echo "services_dhcpdv4_configure($if) being called $mt\n";
+	}
+
+	/* kill any running dhcpd */
+	if (isvalidpid("{$g['dhcpd_chroot_path']}{$g['varrun_path']}/dhcpd.pid")) {
+		killbypid("{$g['dhcpd_chroot_path']}{$g['varrun_path']}/dhcpd.pid");
+	}
+
+	/* DHCP enabled on any interfaces? */
+	if (!is_dhcp_server_enabled()) {
+		return 0;
+	}
+
+	/* if OLSRD is enabled, allow WAN to house DHCP. */
+	if (!function_exists('is_package_installed')) {
+		require_once('pkg-utils.inc');
+	}
+	if (is_package_installed('olsrd') && isset($config['installedpackages']['olsrd'])) {
+		foreach ($config['installedpackages']['olsrd']['config'] as $olsrd) {
+			if (isset($olsrd['enable']) && $olsrd['enable'] == "on") {
+				$is_olsr_enabled = true;
+				break;
+			}
+		}
+	}
+
+	if (platform_booting()) {
+		/* restore the leases, if we have them */
+		if (file_exists("{$g['cf_conf_path']}/dhcpleases.tgz")) {
+			$dhcprestore = "";
+			$dhcpreturn = "";
+			exec("cd /;LANG=C /usr/bin/tar -xzf {$g['cf_conf_path']}/dhcpleases.tgz 2>&1", $dhcprestore, $dhcpreturn);
+			$dhcprestore = implode(" ", $dhcprestore);
+			if ($dhcpreturn <> 0) {
+				log_error(sprintf(gettext('DHCP leases restore failed exited with %1$s, the error is: %2$s%3$s'), $dhcpreturn, $dhcprestore, "\n"));
+			}
+		}
+		/* If this backup is still there on a full install, but we aren't going to use ram disks, remove the archive since this is a transition. */
+		if (($g['platform'] == "pfSense") && !isset($config['system']['use_mfs_tmpvar'])) {
+			unlink_if_exists("{$g['cf_conf_path']}/dhcpleases.tgz");
+		}
+	}
+
+	$syscfg = $config['system'];
+	if (!is_array($config['dhcpd'])) {
+		$config['dhcpd'] = array();
+	}
+	$dhcpdcfg = $config['dhcpd'];
+	$Iflist = get_configured_interface_list();
+
+	/* Only consider DNS servers with IPv4 addresses for the IPv4 DHCP server. */
+	$dns_arrv4 = array();
+	if (is_array($syscfg['dnsserver'])) {
+		foreach ($syscfg['dnsserver'] as $dnsserver) {
+			if (is_ipaddrv4($dnsserver)) {
+				$dns_arrv4[] = $dnsserver;
+			}
+		}
+	}
+
+	if (platform_booting()) {
+		echo gettext("Starting DHCP service...");
+	} else {
+		sleep(1);
+	}
+
+	$custoptions = "";
+	foreach ($dhcpdcfg as $dhcpif => $dhcpifconf) {
+		if (is_array($dhcpifconf['numberoptions']) && is_array($dhcpifconf['numberoptions']['item'])) {
+			foreach ($dhcpifconf['numberoptions']['item'] as $itemidx => $item) {
+				if (!empty($item['type'])) {
+					$itemtype = $item['type'];
+				} else {
+					$itemtype = "text";
+				}
+				$custoptions .= "option custom-{$dhcpif}-{$itemidx} code {$item['number']} = {$itemtype};\n";
+			}
+		}
+	}
+
+	$dhcpdconf = <<<EOD
+
+option domain-name "{$syscfg['domain']}";
+option ldap-server code 95 = text;
+option domain-search-list code 119 = text;
+option arch code 93 = unsigned integer 16; # RFC4578
+{$custoptions}
+default-lease-time 7200;
+max-lease-time 86400;
+log-facility local7;
+one-lease-per-client true;
+deny duplicates;
+ping-check true;
+update-conflict-detection false;
+
+EOD;
+
+	if (!isset($dhcpifconf['disableauthoritative'])) {
+		$dhcpdconf .= "authoritative;\n";
+	}
+
+	if (isset($dhcpifconf['alwaysbroadcast'])) {
+		$dhcpdconf .= "always-broadcast on\n";
+	}
+
+	$dhcpdifs = array();
+	$enable_add_routers = false;
+	$gateways_arr = return_gateways_array();
+	/* only add a routers line if the system has any IPv4 gateway at all */
+	/* a static route has a gateway, manually overriding this field always works */
+	foreach ($gateways_arr as $gwitem) {
+		if ($gwitem['ipprotocol'] == "inet") {
+			$enable_add_routers = true;
+			break;
+		}
+	}
+
+	/*    loop through and determine if we need to setup
+	 *    failover peer "bleh" entries
+	 */
+	foreach ($dhcpdcfg as $dhcpif => $dhcpifconf) {
+
+		if (!isset($config['interfaces'][$dhcpif]['enable'])) {
+			continue;
+		}
+
+		interfaces_staticarp_configure($dhcpif);
+
+		if (!isset($dhcpifconf['enable'])) {
+			continue;
+		}
+
+		if ($dhcpifconf['failover_peerip'] <> "") {
+			$intip = get_interface_ip($dhcpif);
+			/*
+			 *    yep, failover peer is defined.
+			 *    does it match up to a defined vip?
+			 */
+			$skew = 110;
+			if (is_array($config['virtualip']['vip'])) {
+				foreach ($config['virtualip']['vip'] as $vipent) {
+					if ($vipent['interface'] == $dhcpif) {
+						$carp_nw = gen_subnet($vipent['subnet'], $vipent['subnet_bits']);
+						if (ip_in_subnet($dhcpifconf['failover_peerip'], "{$carp_nw}/{$vipent['subnet_bits']}")) {
+							/* this is the interface! */
+							if (is_numeric($vipent['advskew']) && (intval($vipent['advskew']) < 20)) {
+								$skew = 0;
+								break;
+							}
+						}
+					}
+				}
+			} else {
+				log_error(gettext("Warning!  DHCP Failover setup and no CARP virtual IPs defined!"));
+			}
+			if ($skew > 10) {
+				$type = "secondary";
+				$my_port = "520";
+				$peer_port = "519";
+			} else {
+				$my_port = "519";
+				$peer_port = "520";
+				$type = "primary";
+				$dhcpdconf_pri = "split 128;\n";
+				$dhcpdconf_pri .= "  mclt 600;\n";
+			}
+
+			if (is_ipaddrv4($intip)) {
+				$dhcpdconf .= <<<EOPP
+failover peer "dhcp_{$dhcpif}" {
+  {$type};
+  address {$intip};
+  port {$my_port};
+  peer address {$dhcpifconf['failover_peerip']};
+  peer port {$peer_port};
+  max-response-delay 10;
+  max-unacked-updates 10;
+  {$dhcpdconf_pri}
+  load balance max seconds 3;
+}
+\n
+EOPP;
+			}
+		}
+	}
+
+	foreach ($dhcpdcfg as $dhcpif => $dhcpifconf) {
+
+		$newzone = array();
+		$ifcfg = $config['interfaces'][$dhcpif];
+
+		if (!isset($dhcpifconf['enable']) || !isset($Iflist[$dhcpif])) {
+			continue;
+		}
+		$ifcfgip = get_interface_ip($dhcpif);
+		$ifcfgsn = get_interface_subnet($dhcpif);
+		$subnet = gen_subnet($ifcfgip, $ifcfgsn);
+		$subnetmask = gen_subnet_mask($ifcfgsn);
+
+		if (!is_ipaddr($subnet)) {
+			continue;
+		}
+
+		if ($is_olsr_enabled == true) {
+			if ($dhcpifconf['netmask']) {
+				$subnetmask = gen_subnet_mask($dhcpifconf['netmask']);
+			}
+		}
+
+		$all_pools = array();
+		$all_pools[] = $dhcpifconf;
+		if (is_array($dhcpifconf['pool'])) {
+			$all_pools = array_merge($all_pools, $dhcpifconf['pool']);
+		}
+
+		$dnscfg = "";
+
+		if ($dhcpifconf['domain']) {
+			$dnscfg .= "	option domain-name \"{$dhcpifconf['domain']}\";\n";
+		}
+
+		if ($dhcpifconf['domainsearchlist'] <> "") {
+			$dnscfg .= "	option domain-search \"" . join("\",\"", preg_split("/[ ;]+/", $dhcpifconf['domainsearchlist'])) . "\";\n";
+		}
+
+		if (isset($dhcpifconf['ddnsupdate'])) {
+			$need_ddns_updates = true;
+			$newzone = array();
+			if ($dhcpifconf['ddnsdomain'] <> "") {
+				$newzone['domain-name'] = $dhcpifconf['ddnsdomain'];
+				$dnscfg .= "	ddns-domainname \"{$dhcpifconf['ddnsdomain']}\";\n";
+			} else {
+				$newzone['domain-name'] = $config['system']['domain'];
+			}
+			$revsubnet = explode(".", $subnet);
+			$revsubnet = array_reverse($revsubnet);
+			foreach ($revsubnet as $octet) {
+				if ($octet != "0") {
+					break;
+				}
+				array_shift($revsubnet);
+			}
+			$newzone['ptr-domain'] = implode(".", $revsubnet) . ".in-addr.arpa";
+		}
+
+		if (is_array($dhcpifconf['dnsserver']) && ($dhcpifconf['dnsserver'][0])) {
+			$dnscfg .= "	option domain-name-servers " . join(",", $dhcpifconf['dnsserver']) . ";";
+			if ($newzone['domain-name']) {
+				$newzone['dns-servers'] = $dhcpifconf['dnsserver'];
+			}
+		} else if (isset($config['dnsmasq']['enable'])) {
+			$dnscfg .= "	option domain-name-servers {$ifcfgip};";
+			if ($newzone['domain-name'] && is_array($syscfg['dnsserver']) && ($syscfg['dnsserver'][0])) {
+				$newzone['dns-servers'] = $syscfg['dnsserver'];
+			}
+		} else if (isset($config['unbound']['enable'])) {
+			$dnscfg .= "	option domain-name-servers {$ifcfgip};";
+		} else if (!empty($dns_arrv4)) {
+			$dnscfg .= "	option domain-name-servers " . join(",", $dns_arrv4) . ";";
+			if ($newzone['domain-name']) {
+				$newzone['dns-servers'] = $dns_arrv4;
+			}
+		}
+
+		/* Create classes - These all contain comma separated lists. Join them into one
+		   big comma separated string then split them all up. */
+		$all_mac_strings = array();
+		if (is_array($dhcpifconf['pool'])) {
+			foreach ($all_pools as $poolconf) {
+				$all_mac_strings[] = $poolconf['mac_allow'];
+				$all_mac_strings[] = $poolconf['mac_deny'];
+			}
+		}
+		$all_mac_strings[] = $dhcpifconf['mac_allow'];
+		$all_mac_strings[] = $dhcpifconf['mac_deny'];
+		if (!empty($all_mac_strings)) {
+			$all_mac_list = array_unique(explode(',', implode(',', $all_mac_strings)));
+			foreach ($all_mac_list as $mac) {
+				if (empty($mac)) {
+					continue;
+				}
+				$dhcpdconf .= 'class "' . str_replace(':', '', $mac) . '" {' . "\n";
+				// Skip the first octet of the MAC address - for media type, typically Ethernet ("01") and match the rest.
+				$dhcpdconf .= '	match if substring (hardware, 1, ' . (substr_count($mac, ':') + 1) . ') = ' . $mac . ';' . "\n";
+				$dhcpdconf .= '}' . "\n";
+			}
+		}
+
+		$dhcpdconf .= "subnet {$subnet} netmask {$subnetmask} {\n";
+
+		// Setup pool options
+		foreach ($all_pools as $poolconf) {
+			$dhcpdconf .= "	pool {\n";
+			/* is failover dns setup? */
+			if (is_array($poolconf['dnsserver']) && $poolconf['dnsserver'][0] <> "") {
+				$dhcpdconf .= "		option domain-name-servers {$poolconf['dnsserver'][0]}";
+				if ($poolconf['dnsserver'][1] <> "") {
+					$dhcpdconf .= ",{$poolconf['dnsserver'][1]}";
+				}
+				if ($poolconf['dnsserver'][2] <> "") {
+					$dhcpdconf .= ",{$poolconf['dnsserver'][2]}";
+				}
+				if ($poolconf['dnsserver'][3] <> "") {
+					$dhcpdconf .= ",{$poolconf['dnsserver'][3]}";
+				}
+				$dhcpdconf .= ";\n";
+			}
+
+			/* allow/deny MACs */
+			$mac_allow_list = array_unique(explode(',', $poolconf['mac_allow']));
+			foreach ($mac_allow_list as $mac) {
+				if (empty($mac)) {
+					continue;
+				}
+				$dhcpdconf .= "		allow members of \"" . str_replace(':', '', $mac) . "\";\n";
+			}
+			$mac_deny_list = array_unique(explode(',', $poolconf['mac_deny']));
+			foreach ($mac_deny_list as $mac) {
+				if (empty($mac)) {
+					continue;
+				}
+				$dhcpdconf .= "		deny members of \"" . str_replace(':', '', $mac) . "\";\n";
+			}
+
+			if ($poolconf['failover_peerip'] <> "") {
+				$dhcpdconf .= "		deny dynamic bootp clients;\n";
+			}
+
+			if (isset($poolconf['denyunknown'])) {
+			   $dhcpdconf .= "		deny unknown-clients;\n";
+			}
+
+			if ($poolconf['gateway'] && $poolconf['gateway'] != "none" && ($poolconf['gateway'] != $dhcpifconf['gateway'])) {
+				$dhcpdconf .= "		option routers {$poolconf['gateway']};\n";
+			}
+
+			if ($dhcpifconf['failover_peerip'] <> "") {
+				$dhcpdconf .= "		failover peer \"dhcp_{$dhcpif}\";\n";
+			}
+
+			$pdnscfg = "";
+
+			if ($poolconf['domain'] && ($poolconf['domain'] != $dhcpifconf['domain'])) {
+				$pdnscfg .= "		option domain-name \"{$poolconf['domain']}\";\n";
+			}
+
+			if (!empty($poolconf['domainsearchlist']) && ($poolconf['domainsearchlist'] != $dhcpifconf['domainsearchlist'])) {
+				$pdnscfg .= "		option domain-search \"" . join("\",\"", preg_split("/[ ;]+/", $poolconf['domainsearchlist'])) . "\";\n";
+			}
+
+			if (isset($poolconf['ddnsupdate'])) {
+				if (($poolconf['ddnsdomain'] <> "") && ($poolconf['ddnsdomain'] != $dhcpifconf['ddnsdomain'])) {
+					$pdnscfg .= "		ddns-domainname \"{$poolconf['ddnsdomain']}\";\n";
+				}
+				$pdnscfg .= "		ddns-update-style interim;\n";
+			}
+
+			if (is_array($poolconf['dnsserver']) && ($poolconf['dnsserver'][0]) && ($poolconf['dnsserver'][0] != $dhcpifconf['dnsserver'][0])) {
+				$pdnscfg .= "		option domain-name-servers " . join(",", $poolconf['dnsserver']) . ";\n";
+			}
+			$dhcpdconf .= "{$pdnscfg}";
+
+			// default-lease-time
+			if ($poolconf['defaultleasetime'] && ($poolconf['defaultleasetime'] != $dhcpifconf['defaultleasetime'])) {
+				$dhcpdconf .= "		default-lease-time {$poolconf['defaultleasetime']};\n";
+			}
+
+			// max-lease-time
+			if ($poolconf['maxleasetime'] && ($poolconf['maxleasetime'] != $dhcpifconf['maxleasetime'])) {
+				$dhcpdconf .= "		max-lease-time {$poolconf['maxleasetime']};\n";
+			}
+
+			// netbios-name*
+			if (is_array($poolconf['winsserver']) && $poolconf['winsserver'][0] && ($poolconf['winsserver'][0] != $dhcpifconf['winsserver'][0])) {
+				$dhcpdconf .= "		option netbios-name-servers " . join(",", $poolconf['winsserver']) . ";\n";
+				$dhcpdconf .= "		option netbios-node-type 8;\n";
+			}
+
+			// ntp-servers
+			if (is_array($poolconf['ntpserver']) && $poolconf['ntpserver'][0] && ($poolconf['ntpserver'][0] != $dhcpifconf['ntpserver'][0])) {
+				$dhcpdconf .= "		option ntp-servers " . join(",", $poolconf['ntpserver']) . ";\n";
+			}
+
+			// tftp-server-name
+			if (!empty($poolconf['tftp']) && ($poolconf['tftp'] != $dhcpifconf['tftp'])) {
+				$dhcpdconf .= "		option tftp-server-name \"{$poolconf['tftp']}\";\n";
+			}
+
+			// ldap-server
+			if (!empty($poolconf['ldap']) && ($poolconf['ldap'] != $dhcpifconf['ldap'])) {
+				$dhcpdconf .= "		option ldap-server \"{$poolconf['ldap']}\";\n";
+			}
+
+			// net boot information
+			if (isset($poolconf['netboot'])) {
+				if (!empty($poolconf['nextserver']) && ($poolconf['nextserver'] != $dhcpifconf['nextserver'])) {
+					$dhcpdconf .= "		next-server {$poolconf['nextserver']};\n";
+				}
+				if (!empty($poolconf['filename']) && ($poolconf['filename'] != $dhcpifconf['filename'])) {
+					$dhcpdconf .= "		filename \"{$poolconf['filename']}\";\n";
+				}
+				if (!empty($poolconf['rootpath']) && ($poolconf['rootpath'] != $dhcpifconf['rootpath'])) {
+					$dhcpdconf .= "		option root-path \"{$poolconf['rootpath']}\";\n";
+				}
+			}
+			$dhcpdconf .= "		range {$poolconf['range']['from']} {$poolconf['range']['to']};\n";
+			$dhcpdconf .= "	}\n\n";
+		}
+// End of settings inside pools
+
+		if ($dhcpifconf['gateway'] && $dhcpifconf['gateway'] != "none") {
+			$routers = $dhcpifconf['gateway'];
+			$add_routers = true;
+		} elseif ($dhcpifconf['gateway'] == "none") {
+			$add_routers = false;
+		} else {
+			$add_routers = $enable_add_routers;
+			$routers = $ifcfgip;
+		}
+		if ($add_routers) {
+			$dhcpdconf .= "	option routers {$routers};\n";
+		}
+
+		$dhcpdconf .= <<<EOD
+$dnscfg
+
+EOD;
+		// default-lease-time
+		if ($dhcpifconf['defaultleasetime']) {
+			$dhcpdconf .= "	default-lease-time {$dhcpifconf['defaultleasetime']};\n";
+		}
+
+		// max-lease-time
+		if ($dhcpifconf['maxleasetime']) {
+			$dhcpdconf .= "	max-lease-time {$dhcpifconf['maxleasetime']};\n";
+		}
+
+		// netbios-name*
+		if (is_array($dhcpifconf['winsserver']) && $dhcpifconf['winsserver'][0]) {
+			$dhcpdconf .= "	option netbios-name-servers " . join(",", $dhcpifconf['winsserver']) . ";\n";
+			$dhcpdconf .= "	option netbios-node-type 8;\n";
+		}
+
+		// ntp-servers
+		if (is_array($dhcpifconf['ntpserver']) && $dhcpifconf['ntpserver'][0]) {
+			$dhcpdconf .= "	option ntp-servers " . join(",", $dhcpifconf['ntpserver']) . ";\n";
+		}
+
+		// tftp-server-name
+		if ($dhcpifconf['tftp'] <> "") {
+			$dhcpdconf .= "	option tftp-server-name \"{$dhcpifconf['tftp']}\";\n";
+		}
+
+		// Handle option, number rowhelper values
+		$dhcpdconf .= "\n";
+		if ($dhcpifconf['numberoptions']['item']) {
+			foreach ($dhcpifconf['numberoptions']['item'] as $itemidx => $item) {
+				if (empty($item['type']) || $item['type'] == "text") {
+					$dhcpdconf .= "	option custom-{$dhcpif}-{$itemidx} \"{$item['value']}\";\n";
+				} else {
+					$dhcpdconf .= "	option custom-{$dhcpif}-{$itemidx} {$item['value']};\n";
+				}
+			}
+		}
+
+		// ldap-server
+		if ($dhcpifconf['ldap'] <> "") {
+			$dhcpdconf .= "	option ldap-server \"{$dhcpifconf['ldap']}\";\n";
+		}
+
+		// net boot information
+		if (isset($dhcpifconf['netboot'])) {
+			if ($dhcpifconf['nextserver'] <> "") {
+				$dhcpdconf .= "	next-server {$dhcpifconf['nextserver']};\n";
+			}
+			if (!empty($dhcpifconf['filename']) && !empty($dhcpifconf['filename32']) && !empty($dhcpifconf['filename64'])) {
+				$dhcpdconf .= "	if option arch = 00:06 {\n";
+				$dhcpdconf .= "		filename \"{$dhcpifconf['filename32']}\";\n";
+				$dhcpdconf .= "	} else if option arch = 00:07 {\n";
+				$dhcpdconf .= "		filename \"{$dhcpifconf['filename64']}\";\n";
+				$dhcpdconf .= "	} else {\n";
+				$dhcpdconf .= "		filename \"{$dhcpifconf['filename']}\";\n";
+				$dhcpdconf .= "	}\n\n";
+			} elseif (!empty($dhcpifconf['filename'])) {
+				$dhcpdconf .= "	filename \"{$dhcpifconf['filename']}\";\n";
+			}
+			if (!empty($dhcpifconf['rootpath'])) {
+				$dhcpdconf .= "	option root-path \"{$dhcpifconf['rootpath']}\";\n";
+			}
+		}
+
+		$dhcpdconf .= <<<EOD
+}
+
+EOD;
+
+		/* add static mappings */
+		if (is_array($dhcpifconf['staticmap'])) {
+
+			$i = 0;
+			foreach ($dhcpifconf['staticmap'] as $sm) {
+				$dhcpdconf .= "host s_{$dhcpif}_{$i} {\n";
+
+				if ($sm['mac']) {
+					$dhcpdconf .= "        hardware ethernet {$sm['mac']};\n";
+				}
+
+				if ($sm['cid']) {
+					$dhcpdconf .= "        option dhcp-client-identifier \"{$sm['cid']}\";\n";
+				}
+
+				if ($sm['ipaddr']) {
+					$dhcpdconf .= "	fixed-address {$sm['ipaddr']};\n";
+				}
+
+				if ($sm['hostname']) {
+					$dhhostname = str_replace(" ", "_", $sm['hostname']);
+					$dhhostname = str_replace(".", "_", $dhhostname);
+					$dhcpdconf .= "	option host-name \"{$dhhostname}\";\n";
+				}
+				if ($sm['filename']) {
+					$dhcpdconf .= "	filename \"{$sm['filename']}\";\n";
+				}
+
+				if ($sm['rootpath']) {
+					$dhcpdconf .= "	option root-path \"{$sm['rootpath']}\";\n";
+				}
+
+				if ($sm['gateway'] && ($sm['gateway'] != $dhcpifconf['gateway'])) {
+					$dhcpdconf .= "	option routers {$sm['gateway']};\n";
+				}
+
+				$smdnscfg = "";
+
+				if ($sm['domain'] && ($sm['domain'] != $dhcpifconf['domain'])) {
+					$smdnscfg .= "	option domain-name \"{$sm['domain']}\";\n";
+				}
+
+				if (!empty($sm['domainsearchlist']) && ($sm['domainsearchlist'] != $dhcpifconf['domainsearchlist'])) {
+					$smdnscfg .= "	option domain-search \"" . join("\",\"", preg_split("/[ ;]+/", $sm['domainsearchlist'])) . "\";\n";
+				}
+
+				if (isset($sm['ddnsupdate'])) {
+					if (($sm['ddnsdomain'] <> "") && ($sm['ddnsdomain'] != $dhcpifconf['ddnsdomain'])) {
+						$pdnscfg .= "		ddns-domainname \"{$sm['ddnsdomain']}\";\n";
+					}
+					$pdnscfg .= "		ddns-update-style interim;\n";
+				}
+
+				if (is_array($sm['dnsserver']) && ($sm['dnsserver'][0]) && ($sm['dnsserver'][0] != $dhcpifconf['dnsserver'][0])) {
+					$smdnscfg .= "	option domain-name-servers " . join(",", $sm['dnsserver']) . ";\n";
+				}
+				$dhcpdconf .= "{$smdnscfg}";
+
+				// default-lease-time
+				if ($sm['defaultleasetime'] && ($sm['defaultleasetime'] != $dhcpifconf['defaultleasetime'])) {
+					$dhcpdconf .= "	default-lease-time {$sm['defaultleasetime']};\n";
+				}
+
+				// max-lease-time
+				if ($sm['maxleasetime'] && ($sm['maxleasetime'] != $dhcpifconf['maxleasetime'])) {
+					$dhcpdconf .= "	max-lease-time {$sm['maxleasetime']};\n";
+				}
+
+				// netbios-name*
+				if (is_array($sm['winsserver']) && $sm['winsserver'][0] && ($sm['winsserver'][0] != $dhcpifconf['winsserver'][0])) {
+					$dhcpdconf .= "	option netbios-name-servers " . join(",", $sm['winsserver']) . ";\n";
+					$dhcpdconf .= "	option netbios-node-type 8;\n";
+				}
+
+				// ntp-servers
+				if (is_array($sm['ntpserver']) && $sm['ntpserver'][0] && ($sm['ntpserver'][0] != $dhcpifconf['ntpserver'][0])) {
+					$dhcpdconf .= "	option ntp-servers " . join(",", $sm['ntpserver']) . ";\n";
+				}
+
+				// tftp-server-name
+				if (!empty($sm['tftp']) && ($sm['tftp'] != $dhcpifconf['tftp'])) {
+					$dhcpdconf .= "	option tftp-server-name \"{$sm['tftp']}\";\n";
+				}
+
+				$dhcpdconf .= "}\n";
+				$i++;
+			}
+		}
+
+		$dhcpdifs[] = get_real_interface($dhcpif);
+		if ($newzone['domain-name']) {
+			if ($need_ddns_updates) {
+				$newzone['dns-servers'] = array($dhcpifconf['ddnsdomainprimary']);
+			}
+			$ddns_zones[] = $newzone;
+		}
+	}
+
+	if ($need_ddns_updates) {
+		$dhcpdconf .= "ddns-update-style interim;\n";
+		$dhcpdconf .= "update-static-leases on;\n";
+
+		$dhcpdconf .= dhcpdkey($dhcpifconf);
+		$dhcpdconf .= dhcpdzones($ddns_zones, $dhcpifconf);
+	}
+
+	/* write dhcpd.conf */
+	if (!@file_put_contents("{$g['dhcpd_chroot_path']}/etc/dhcpd.conf", $dhcpdconf)) {
+		printf(gettext("Error: cannot open dhcpd.conf in services_dhcpdv4_configure().%s"), "\n");
+		unset($dhcpdconf);
+		return 1;
+	}
+	unset($dhcpdconf);
+
+	/* create an empty leases database */
+	if (!file_exists("{$g['dhcpd_chroot_path']}/var/db/dhcpd.leases")) {
+		@touch("{$g['dhcpd_chroot_path']}/var/db/dhcpd.leases");
+	}
+
+	/* make sure there isn't a stale dhcpd.pid file, which can make dhcpd fail to start.   */
+	/* if we get here, dhcpd has been killed and is not started yet                        */
+	unlink_if_exists("{$g['dhcpd_chroot_path']}{$g['varrun_path']}/dhcpd.pid");
+
+	/* fire up dhcpd in a chroot */
+	if (count($dhcpdifs) > 0) {
+		mwexec("/usr/local/sbin/dhcpd -user dhcpd -group _dhcp -chroot {$g['dhcpd_chroot_path']} -cf /etc/dhcpd.conf -pf {$g['varrun_path']}/dhcpd.pid " .
+			join(" ", $dhcpdifs));
+	}
+
+	if (platform_booting()) {
+		print "done.\n";
+	}
+
+	return 0;
+}
+
+function dhcpdkey($dhcpifconf) {
+	$dhcpdconf = "";
+	if ($dhcpifconf['ddnsdomainkeyname'] <> "" && $dhcpifconf['ddnsdomainkey'] <> "") {
+		$dhcpdconf .= "key {$dhcpifconf['ddnsdomainkeyname']} {\n";
+		$dhcpdconf .= "	algorithm hmac-md5;\n";
+		$dhcpdconf .= "	secret {$dhcpifconf['ddnsdomainkey']};\n";
+		$dhcpdconf .= "}\n";
+	}
+
+	return $dhcpdconf;
+}
+
+function dhcpdzones($ddns_zones, $dhcpifconf) {
+	$dhcpdconf = "";
+
+	if (is_array($ddns_zones)) {
+		$added_zones = array();
+		foreach ($ddns_zones as $zone) {
+			if (!is_array($zone) || empty($zone) || !is_array($zone['dns-servers'])) {
+				continue;
+			}
+			$primary = $zone['dns-servers'][0];
+			$secondary = empty($zone['dns-servers'][1]) ? "" : $zone['dns-servers'][1];
+
+			// Make sure we aren't using any invalid or IPv6 DNS servers.
+			if (!is_ipaddrv4($primary)) {
+				if (is_ipaddrv4($secondary)) {
+					$primary = $secondary;
+					$secondary = "";
+				} else {
+					continue;
+				}
+			}
+
+			// We don't need to add zones multiple times.
+			if ($zone['domain-name'] && !in_array($zone['domain-name'], $added_zones)) {
+				$dhcpdconf .= "zone {$zone['domain-name']}. {\n";
+				$dhcpdconf .= "	primary {$primary};\n";
+				if (is_ipaddrv4($secondary)) {
+					$dhcpdconf .= "	secondary {$secondary};\n";
+				}
+				if ($dhcpifconf['ddnsdomainkeyname'] <> "" && $dhcpifconf['ddnsdomainkey'] <> "") {
+					$dhcpdconf .= "	key {$dhcpifconf['ddnsdomainkeyname']};\n";
+				}
+				$dhcpdconf .= "}\n";
+				$added_zones[] = $zone['domain-name'];
+			}
+			if ($zone['ptr-domain'] && !in_array($zone['ptr-domain'], $added_zones)) {
+				$dhcpdconf .= "zone {$zone['ptr-domain']} {\n";
+				$dhcpdconf .= "	primary {$primary};\n";
+				if (is_ipaddrv4($secondary)) {
+					$dhcpdconf .= "	secondary {$secondary};\n";
+				}
+				if ($dhcpifconf['ddnsdomainkeyname'] <> "" && $dhcpifconf['ddnsdomainkey'] <> "") {
+					$dhcpdconf .= "	key {$dhcpifconf['ddnsdomainkeyname']};\n";
+				}
+				$dhcpdconf .= "}\n";
+				$added_zones[] = $zone['ptr-domain'];
+			}
+		}
+	}
+
+	return $dhcpdconf;
+}
+
+function services_dhcpdv6_configure($blacklist = array()) {
+	global $config, $g;
+
+	if ($g['services_dhcp_server_enable'] == false) {
+		return;
+	}
+
+	if (isset($config['system']['developerspew'])) {
+		$mt = microtime();
+		echo "services_dhcpd_configure($if) being called $mt\n";
+	}
+
+	/* kill any running dhcpd */
+	if (isvalidpid("{$g['dhcpd_chroot_path']}{$g['varrun_path']}/dhcpdv6.pid")) {
+		killbypid("{$g['dhcpd_chroot_path']}{$g['varrun_path']}/dhcpdv6.pid");
+	}
+	if (isvalidpid("{$g['varrun_path']}/dhcpleases6.pid")) {
+		killbypid("{$g['varrun_path']}/dhcpleases6.pid");
+	}
+
+	/* DHCP enabled on any interfaces? */
+	if (!is_dhcpv6_server_enabled()) {
+		return 0;
+	}
+
+	if (platform_booting()) {
+		if ($g['platform'] != "pfSense") {
+			/* restore the leases, if we have them */
+			if (file_exists("{$g['cf_conf_path']}/dhcp6leases.tgz")) {
+				$dhcprestore = "";
+				$dhcpreturn = "";
+				exec("cd /;LANG=C /usr/bin/tar -xzf {$g['cf_conf_path']}/dhcp6leases.tgz 2>&1", $dhcprestore, $dhcpreturn);
+				$dhcprestore = implode(" ", $dhcprestore);
+				if ($dhcpreturn <> 0) {
+					log_error("DHCP leases v6 restore failed exited with $dhcpreturn, the error is: $dhcprestore\n");
+				}
+			}
+		}
+	}
+
+	$syscfg = $config['system'];
+	if (!is_array($config['dhcpdv6'])) {
+		$config['dhcpdv6'] = array();
+	}
+	$dhcpdv6cfg = $config['dhcpdv6'];
+	$Iflist = get_configured_interface_list();
+	$Iflist = array_merge($Iflist, get_configured_pppoe_server_interfaces());
+
+
+	if (platform_booting()) {
+		echo "Starting DHCPv6 service...";
+	} else {
+		sleep(1);
+	}
+
+	/* we add a fake entry for interfaces that are set to track6 another WAN */
+	foreach ($Iflist as $ifname) {
+		/* Do not put in the config an interface which is down */
+		if (isset($blacklist[$ifname])) {
+			continue;
+		}
+		if (!empty($config['interfaces'][$ifname]['track6-interface'])) {
+			$realif = get_real_interface($ifname, "inet6");
+			$ifcfgipv6 = get_interface_ipv6($ifname);
+			if (!is_ipaddrv6($ifcfgipv6)) {
+				continue;
+			}
+			$ifcfgipv6 = Net_IPv6::getNetmask($ifcfgipv6, 64);
+			$trackifname = $config['interfaces'][$ifname]['track6-interface'];
+			$trackcfg = $config['interfaces'][$trackifname];
+			$pdlen = calculate_ipv6_delegation_length($trackifname);
+			$ifcfgipv6arr =explode(":", $ifcfgipv6);
+			$dhcpdv6cfg[$ifname] = array();
+			$dhcpdv6cfg[$ifname]['enable'] = true;
+			/* range */
+			$ifcfgipv6arr[7] = "1000";
+			$dhcpdv6cfg[$ifname]['range'] = array();
+			$dhcpdv6cfg[$ifname]['range']['from'] = Net_IPv6::compress(implode(":", $ifcfgipv6arr));
+			$ifcfgipv6arr[7] = "2000";
+			$dhcpdv6cfg[$ifname]['range']['to'] = Net_IPv6::compress(implode(":", $ifcfgipv6arr));
+			/* prefix length > 0? We can add dhcp6 prefix delegation server */
+			if ($pdlen > 2) {
+				$pdlenmax = $pdlen;
+				$pdlenhalf = $pdlenmax -1;
+				$pdlenmin = (64 - ceil($pdlenhalf / 4));
+				$dhcpdv6cfg[$ifname]['prefixrange'] = array();
+				$dhcpdv6cfg[$ifname]['prefixrange']['prefixlength'] = $pdlenmin;
+
+				/* set the delegation start to half the current address block */
+				$range = Net_IPv6::parseAddress($ifcfgipv6, (64 - $pdlenmax));
+				$range['start'] = Net_IPv6::getNetmask($range['end'], (64 - $pdlenhalf));
+
+				/* set the end range to a multiple of the prefix delegation size, required by dhcpd */
+				$range = Net_IPv6::parseAddress($range['end'], (64 - $pdlenhalf));
+				$range['end'] = Net_IPv6::getNetmask($range['end'], (64 - round($pdlen / 2)));
+
+				$dhcpdv6cfg[$ifname]['prefixrange']['from'] = Net_IPv6::compress($range['start']);
+				$dhcpdv6cfg[$ifname]['prefixrange']['to'] = Net_IPv6::compress($range['end']);
+			}
+			$dhcpdv6cfg[$ifname]['dns6ip'] = get_interface_ipv6($ifname);
+		}
+	}
+
+	$custoptionsv6 = "";
+	foreach ($dhcpdv6cfg as $dhcpv6if => $dhcpv6ifconf) {
+		if (is_array($dhcpv6ifconf['numberoptions']) && is_array($dhcpv6ifconf['numberoptions']['item'])) {
+			foreach ($dhcpv6ifconf['numberoptions']['item'] as $itemv6idx => $itemv6) {
+				$custoptionsv6 .= "option custom-{$dhcpv6if}-{$itemv6idx} code {$itemv6['number']} = text;\n";
+			}
+		}
+	}
+
+	if (isset($dhcpv6ifconf['netboot']) && !empty($dhcpv6ifconf['bootfile_url'])) {
+		$custoptionsv6 .= "option dhcp6.bootfile-url code 59 = string;\n";
+	}
+
+	$dhcpdv6conf = <<<EOD
+
+option domain-name "{$syscfg['domain']}";
+option ldap-server code 95 = text;
+option domain-search-list code 119 = text;
+{$custoptionsv6}
+default-lease-time 7200;
+max-lease-time 86400;
+log-facility local7;
+one-lease-per-client true;
+deny duplicates;
+ping-check true;
+update-conflict-detection false;
+
+EOD;
+
+	if (!isset($dhcpv6ifconf['disableauthoritative'])) {
+		$dhcpdv6conf .= "authoritative;\n";
+	}
+
+	if (isset($dhcpv6ifconf['alwaysbroadcast'])) {
+		$dhcpdv6conf .= "always-broadcast on\n";
+	}
+
+	$dhcpdv6ifs = array();
+
+	$dhcpv6num = 0;
+	$nsupdate = false;
+
+	foreach ($dhcpdv6cfg as $dhcpv6if => $dhcpv6ifconf) {
+
+		$ddns_zones = array();
+
+		$ifcfgv6 = $config['interfaces'][$dhcpv6if];
+
+		if (!isset($dhcpv6ifconf['enable']) || !isset($Iflist[$dhcpv6if]) || !isset($ifcfgv6['enable'])) {
+			continue;
+		}
+		$ifcfgipv6 = get_interface_ipv6($dhcpv6if);
+		$ifcfgsnv6 = get_interface_subnetv6($dhcpv6if);
+		$subnetv6 = gen_subnetv6($ifcfgipv6, $ifcfgsnv6);
+
+		if ($is_olsr_enabled == true) {
+			if ($dhcpv6ifconf['netmask']) {
+				$subnetmask = gen_subnet_maskv6($dhcpv6ifconf['netmask']);
+			}
+		}
+
+		$dnscfgv6 = "";
+
+		if ($dhcpv6ifconf['domain']) {
+			$dnscfgv6 .= "	option domain-name \"{$dhcpv6ifconf['domain']}\";\n";
+		}
+
+		if ($dhcpv6ifconf['domainsearchlist'] <> "") {
+			$dnscfgv6 .= "	option domain-search \"" . join("\",\"", preg_split("/[ ;]+/", $dhcpv6ifconf['domainsearchlist'])) . "\";\n";
+		}
+
+		if (isset($dhcpv6ifconf['ddnsupdate'])) {
+			if ($dhcpv6ifconf['ddnsdomain'] <> "") {
+				$dnscfgv6 .= "	ddns-domainname \"{$dhcpv6ifconf['ddnsdomain']}\";\n";
+			}
+			$dnscfgv6 .= "	ddns-update-style interim;\n";
+			$nsupdate = true;
+		}
+
+		if (is_array($dhcpv6ifconf['dnsserver']) && ($dhcpv6ifconf['dnsserver'][0])) {
+			$dnscfgv6 .= "	option dhcp6.name-servers " . join(",", $dhcpv6ifconf['dnsserver']) . ";";
+		} else if (((isset($config['dnsmasq']['enable'])) || isset($config['unbound']['enable'])) && (is_ipaddrv6($ifcfgipv6))) {
+			$dnscfgv6 .= "	option dhcp6.name-servers {$ifcfgipv6};";
+		} else if (is_array($syscfg['dnsserver']) && ($syscfg['dnsserver'][0])) {
+			$dns_arrv6 = array();
+			foreach ($syscfg['dnsserver'] as $dnsserver) {
+				if (is_ipaddrv6($dnsserver)) {
+					$dns_arrv6[] = $dnsserver;
+				}
+			}
+			if (!empty($dns_arrv6)) {
+				$dnscfgv6 .= "	option dhcp6.name-servers " . join(",", $dns_arrv6) . ";";
+			}
+		}
+
+		if ($dhcpv6ifconf['domain']) {
+			$newzone = array();
+			$newzone['domain-name'] = $dhcpv6ifconf['domain'];
+			$newzone['dns-servers'][] = $dhcpv6ifconf['ddnsdomainprimary'];
+			$ddns_zones[] = $newzone;
+		}
+
+		if (is_ipaddrv6($ifcfgipv6)) {
+			$dhcpdv6conf .= "subnet6 {$subnetv6}/{$ifcfgsnv6}";
+		} else {
+			$subnet6 = gen_subnetv6($dhcpv6ifconf['range']['from'], "64");
+			$dhcpdv6conf .= "subnet6 {$subnet6}/64";
+		}
+		$dhcpdv6conf .= " {\n";
+
+		$dhcpdv6conf .= <<<EOD
+	range6 {$dhcpv6ifconf['range']['from']} {$dhcpv6ifconf['range']['to']};
+$dnscfgv6
+
+EOD;
+
+		if (is_ipaddrv6($dhcpv6ifconf['prefixrange']['from']) && is_ipaddrv6($dhcpv6ifconf['prefixrange']['to'])) {
+			$dhcpdv6conf .= "	prefix6 {$dhcpv6ifconf['prefixrange']['from']} {$dhcpv6ifconf['prefixrange']['to']} /{$dhcpv6ifconf['prefixrange']['prefixlength']};\n";
+		}
+		if (is_ipaddrv6($dhcpv6ifconf['dns6ip'])) {
+			$dhcpdv6conf .= "	option dhcp6.name-servers {$dhcpv6ifconf['dns6ip']};\n";
+		}
+		// default-lease-time
+		if ($dhcpv6ifconf['defaultleasetime']) {
+			$dhcpdv6conf .= "	default-lease-time {$dhcpv6ifconf['defaultleasetime']};\n";
+		}
+
+		// max-lease-time
+		if ($dhcpv6ifconf['maxleasetime']) {
+			$dhcpdv6conf .= "	max-lease-time {$dhcpv6ifconf['maxleasetime']};\n";
+		}
+
+		// ntp-servers
+		if (is_array($dhcpv6ifconf['ntpserver']) && $dhcpv6ifconf['ntpserver'][0]) {
+			$ntpservers = array();
+			foreach ($dhcpv6ifconf['ntpserver'] as $ntpserver) {
+				if (is_ipaddrv6($ntpserver)) {
+					$ntpservers[] = $ntpserver;
+				}
+			}
+			if (count($ntpservers) > 0) {
+				$dhcpdv6conf .= "       option dhcp6.sntp-servers " . join(",", $dhcpv6ifconf['ntpserver']) . ";\n";
+			}
+		}
+		// tftp-server-name
+		/* Needs ISC DHCPD support
+		 if ($dhcpv6ifconf['tftp'] <> "") {
+			$dhcpdv6conf .= "	option tftp-server-name \"{$dhcpv6ifconf['tftp']}\";\n";
+		 }
+		*/
+
+		// Handle option, number rowhelper values
+		$dhcpdv6conf .= "\n";
+		if ($dhcpv6ifconf['numberoptions']['item']) {
+			foreach ($dhcpv6ifconf['numberoptions']['item'] as $itemv6idx => $itemv6) {
+				$dhcpdv6conf .= "	option custom-{$dhcpv6if}-{$itemv6idx} \"{$itemv6['value']}\";\n";
+			}
+		}
+
+		// ldap-server
+		if ($dhcpv6ifconf['ldap'] <> "") {
+			$dhcpdv6conf .= "	option ldap-server \"{$dhcpv6ifconf['ldap']}\";\n";
+		}
+
+		// net boot information
+		if (isset($dhcpv6ifconf['netboot'])) {
+			if (!empty($dhcpv6ifconf['bootfile_url'])) {
+				$dhcpdv6conf .= "	option dhcp6.bootfile-url \"{$dhcpv6ifconf['bootfile_url']}\";\n";
+			}
+		}
+
+		$dhcpdv6conf .= "}\n";
+
+		/* add static mappings */
+		/* Needs to use DUID */
+		if (is_array($dhcpv6ifconf['staticmap'])) {
+			$i = 0;
+			foreach ($dhcpv6ifconf['staticmap'] as $sm) {
+				$dhcpdv6conf .= <<<EOD
+host s_{$dhcpv6if}_{$i} {
+	host-identifier option dhcp6.client-id {$sm['duid']};
+
+EOD;
+				if ($sm['ipaddrv6']) {
+					$dhcpdv6conf .= "	fixed-address6 {$sm['ipaddrv6']};\n";
+				}
+
+				if ($sm['hostname']) {
+					$dhhostname = str_replace(" ", "_", $sm['hostname']);
+					$dhhostname = str_replace(".", "_", $dhhostname);
+					$dhcpdv6conf .= "	option host-name {$dhhostname};\n";
+				}
+				if ($sm['filename']) {
+					$dhcpdv6conf .= "	filename \"{$sm['filename']}\";\n";
+				}
+
+				if ($sm['rootpath']) {
+					$dhcpdv6conf .= "	option root-path \"{$sm['rootpath']}\";\n";
+				}
+
+				$dhcpdv6conf .= "}\n";
+				$i++;
+			}
+		}
+
+		if ($dhcpv6ifconf['domain']) {
+			$dhcpdv6conf .= dhcpdkey($dhcpv6ifconf);
+			$dhcpdv6conf .= dhcpdzones($ddns_zones, $dhcpv6ifconf);
+		}
+
+		if ($config['dhcpdv6'][$dhcpv6if]['ramode'] <> "unmanaged" && isset($config['interfaces'][$dhcpv6if]['enable'])) {
+			if (preg_match("/poes/si", $dhcpv6if)) {
+				/* magic here */
+				$dhcpdv6ifs = array_merge($dhcpdv6ifs, get_pppoes_child_interfaces($dhcpv6if));
+			} else {
+				$realif = get_real_interface($dhcpv6if, "inet6");
+				if (stristr("$realif", "bridge")) {
+					$mac = get_interface_mac($realif);
+					$v6address = generate_ipv6_from_mac($mac);
+					/* Create link local address for bridges */
+					mwexec("/sbin/ifconfig {$realif} inet6 {$v6address}");
+				}
+				$realif = escapeshellcmd($realif);
+				$dhcpdv6ifs[] = $realif;
+			}
+		}
+	}
+
+	if ($nsupdate) {
+		$dhcpdv6conf .= "ddns-update-style interim;\n";
+	} else {
+		$dhcpdv6conf .= "ddns-update-style none;\n";
+	}
+
+	/* write dhcpdv6.conf */
+	if (!@file_put_contents("{$g['dhcpd_chroot_path']}/etc/dhcpdv6.conf", $dhcpdv6conf)) {
+		log_error("Error: cannot open {$g['dhcpd_chroot_path']}/etc/dhcpdv6.conf in services_dhcpdv6_configure().\n");
+		if (platform_booting()) {
+			printf("Error: cannot open {$g['dhcpd_chroot_path']}/etc/dhcpdv6.conf in services_dhcpdv6_configure().\n");
+		}
+		unset($dhcpdv6conf);
+		return 1;
+	}
+	unset($dhcpdv6conf);
+
+	/* create an empty leases v6 database */
+	if (!file_exists("{$g['dhcpd_chroot_path']}/var/db/dhcpd6.leases")) {
+		@touch("{$g['dhcpd_chroot_path']}/var/db/dhcpd6.leases");
+	}
+
+	/* make sure there isn't a stale dhcpdv6.pid file, which may make dhcpdv6 fail to start.  */
+	/* if we get here, dhcpdv6 has been killed and is not started yet                         */
+	unlink_if_exists("{$g['dhcpd_chroot_path']}{$g['varrun_path']}/dhcpdv6.pid");
+
+	/* fire up dhcpd in a chroot */
+	if (count($dhcpdv6ifs) > 0) {
+		mwexec("/usr/local/sbin/dhcpd -6 -user dhcpd -group _dhcp -chroot {$g['dhcpd_chroot_path']} -cf /etc/dhcpdv6.conf -pf {$g['varrun_path']}/dhcpdv6.pid " .
+			join(" ", $dhcpdv6ifs));
+		mwexec("/usr/local/sbin/dhcpleases6 -c \"/usr/local/bin/php-cgi -f /usr/local/sbin/prefixes.php|/bin/sh\" -l {$g['dhcpd_chroot_path']}/var/db/dhcpd6.leases");
+	}
+	if (platform_booting()) {
+		print gettext("done.") . "\n";
+	}
+
+	return 0;
+}
+
+function services_igmpproxy_configure() {
+	global $config, $g;
+
+	/* kill any running igmpproxy */
+	killbyname("igmpproxy");
+
+	if (!is_array($config['igmpproxy']['igmpentry']) || (count($config['igmpproxy']['igmpentry']) == 0)) {
+		return 1;
+	}
+
+	$iflist = get_configured_interface_list();
+
+	$igmpconf = <<<EOD
+
+##------------------------------------------------------
+## Enable Quickleave mode (Sends Leave instantly)
+##------------------------------------------------------
+quickleave
+
+EOD;
+
+	foreach ($config['igmpproxy']['igmpentry'] as $igmpcf) {
+		unset($iflist[$igmpcf['ifname']]);
+		$realif = get_real_interface($igmpcf['ifname']);
+		if (empty($igmpcf['threshold'])) {
+			$threshld = 1;
+		} else {
+			$threshld = $igmpcf['threshold'];
+		}
+		$igmpconf .= "phyint {$realif} {$igmpcf['type']} ratelimit 0 threshold {$threshld}\n";
+
+		if ($igmpcf['address'] <> "") {
+			$item = explode(" ", $igmpcf['address']);
+			foreach ($item as $iww) {
+				$igmpconf .= "altnet {$iww}\n";
+			}
+		}
+		$igmpconf .= "\n";
+	}
+	foreach ($iflist as $ifn) {
+		$realif = get_real_interface($ifn);
+		$igmpconf .= "phyint {$realif} disabled\n";
+	}
+	$igmpconf .= "\n";
+
+	$igmpfl = fopen($g['tmp_path'] . "/igmpproxy.conf", "w");
+	if (!$igmpfl) {
+		log_error(gettext("Could not write Igmpproxy configuration file!"));
+		return;
+	}
+	fwrite($igmpfl, $igmpconf);
+	fclose($igmpfl);
+	unset($igmpconf);
+
+	/* NOTE: -d4 means everything LOG_WARNING and smaller */
+	mwexec("/usr/local/sbin/igmpproxy -d4 -c {$g['tmp_path']}/igmpproxy.conf");
+	log_error(gettext("Started IGMP proxy service."));
+
+	return 0;
+}
+
+function services_dhcrelay_configure() {
+	global $config, $g;
+
+	if (isset($config['system']['developerspew'])) {
+		$mt = microtime();
+		echo "services_dhcrelay_configure() being called $mt\n";
+	}
+
+	/* kill any running dhcrelay */
+	killbypid("{$g['varrun_path']}/dhcrelay.pid");
+
+	$dhcrelaycfg =& $config['dhcrelay'];
+
+	/* DHCPRelay enabled on any interfaces? */
+	if (!isset($dhcrelaycfg['enable'])) {
+		return 0;
+	}
+
+	if (platform_booting()) {
+		echo gettext("Starting DHCP relay service...");
+	} else {
+		sleep(1);
+	}
+
+	$iflist = get_configured_interface_list();
+
+	$dhcifaces = explode(",", $dhcrelaycfg['interface']);
+	foreach ($dhcifaces as $dhcrelayif) {
+		if (!isset($iflist[$dhcrelayif]) ||
+		    link_interface_to_bridge($dhcrelayif)) {
+			continue;
+		}
+
+		if (is_ipaddr(get_interface_ip($dhcrelayif))) {
+			$dhcrelayifs[] = get_real_interface($dhcrelayif);
+		}
+	}
+	
+	$srvips = explode(",", $dhcrelaycfg['server']);	
+	if (!is_array($srvips)) {
+		log_error("No destination IP has been configured!");
+		return;
+	}
+
+	$dhcrelayifs = array_unique($dhcrelayifs);
+
+	/* fire up dhcrelay */
+	if (empty($dhcrelayifs)) {
+		log_error("No suitable interface found for running dhcrelay!");
+		return; /* XXX */
+	}
+
+	$cmd = "/usr/local/sbin/dhcrelay -i " . implode(" -i ", $dhcrelayifs);
+
+	if (isset($dhcrelaycfg['agentoption'])) {
+		$cmd .= " -a -m replace";
+	}
+
+	$cmd .= " " . implode(" ", $srvips);
+	mwexec($cmd);
+	unset($cmd);
+
+	return 0;
+}
+
+function services_dhcrelay6_configure() {
+	global $config, $g;
+
+	if (isset($config['system']['developerspew'])) {
+		$mt = microtime();
+		echo "services_dhcrelay6_configure() being called $mt\n";
+	}
+
+	/* kill any running dhcrelay */
+	killbypid("{$g['varrun_path']}/dhcrelay6.pid");
+
+	$dhcrelaycfg =& $config['dhcrelay6'];
+
+	/* DHCPv6 Relay enabled on any interfaces? */
+	if (!isset($dhcrelaycfg['enable'])) {
+		return 0;
+	}
+
+	if (platform_booting()) {
+		echo gettext("Starting DHCPv6 relay service...");
+	} else {
+		sleep(1);
+	}
+
+	$iflist = get_configured_interface_list();
+
+	$dhcifaces = explode(",", $dhcrelaycfg['interface']);
+	foreach ($dhcifaces as $dhcrelayif) {
+		if (!isset($iflist[$dhcrelayif]) ||
+		    link_interface_to_bridge($dhcrelayif)) {
+			continue;
+		}
+
+		if (is_ipaddrv6(get_interface_ipv6($dhcrelayif))) {
+			$dhcrelayifs[] = get_real_interface($dhcrelayif);
+		}
+	}
+	$dhcrelayifs = array_unique($dhcrelayifs);
+
+	$srvips = explode(",", $dhcrelaycfg['server']);
+	if (!is_array($srvips)) {
+		log_error("No destination IP has been configured!");
+		return;
+	}
+
+	/* fire up dhcrelay */
+	if (empty($dhcrelayifs) || empty($srvifaces)) {
+		log_error("No suitable interface found for running dhcrelay -6!");
+		return; /* XXX */
+	}
+
+	$cmd = "/usr/local/sbin/dhcrelay -6 -pf \"{$g['varrun_path']}/dhcrelay6.pid\"";
+	foreach ($dhcrelayifs as $dhcrelayif) {
+		$cmd .= " -l {$dhcrelayif}";
+	}
+	foreach ($srvifaces as $srviface) {
+		$cmd .= " -u \"{$srviface}\"";
+	}
+	mwexec($cmd);
+	unset($cmd);
+
+	return 0;
+}
+
+function services_dyndns_configure_client($conf) {
+
+	if (!isset($conf['enable'])) {
+		return;
+	}
+
+	/* load up the dyndns.class */
+	require_once("dyndns.class");
+
+	$dns = new updatedns($dnsService = $conf['type'],
+		$dnsHost = $conf['host'],
+		$dnsUser = $conf['username'],
+		$dnsPass = $conf['password'],
+		$dnsWildcard = $conf['wildcard'],
+		$dnsMX = $conf['mx'],
+		$dnsIf = "{$conf['interface']}",
+		$dnsBackMX = NULL,
+		$dnsServer = NULL,
+		$dnsPort = NULL,
+		$dnsUpdateURL = "{$conf['updateurl']}",
+		$forceUpdate = $conf['force'],
+		$dnsZoneID = $conf['zoneid'],
+		$dnsTTL = $conf['ttl'],
+		$dnsResultMatch = "{$conf['resultmatch']}",
+		$dnsRequestIf = "{$conf['requestif']}",
+		$dnsID = "{$conf['id']}",
+		$dnsVerboseLog = $conf['verboselog'],
+		$curlIpresolveV4 = $conf['curl_ipresolve_v4'],
+		$curlSslVerifypeer = $conf['curl_ssl_verifypeer']);
+}
+
+function services_dyndns_configure($int = "") {
+	global $config, $g;
+	if (isset($config['system']['developerspew'])) {
+		$mt = microtime();
+		echo "services_dyndns_configure() being called $mt\n";
+	}
+
+	$dyndnscfg = $config['dyndnses']['dyndns'];
+	$gwgroups = return_gateway_groups_array();
+	if (is_array($dyndnscfg)) {
+		if (platform_booting()) {
+			echo gettext("Starting DynDNS clients...");
+		}
+
+		foreach ($dyndnscfg as $dyndns) {
+			if ((empty($int)) || ($int == $dyndns['interface']) || (is_array($gwgroups[$dyndns['interface']]))) {
+				$dyndns['verboselog'] = isset($dyndns['verboselog']);
+				$dyndns['curl_ipresolve_v4'] = isset($dyndns['curl_ipresolve_v4']);
+				$dyndns['curl_ssl_verifypeer'] = isset($dyndns['curl_ssl_verifypeer']);
+				services_dyndns_configure_client($dyndns);
+				sleep(1);
+			}
+		}
+
+		if (platform_booting()) {
+			echo gettext("done.") . "\n";
+		}
+	}
+
+	return 0;
+}
+
+function dyndnsCheckIP($int) {
+	global $config;
+	$ip_address = get_interface_ip($int);
+	if (is_private_ip($ip_address)) {
+		$gateways_status = return_gateways_status(true);
+		// If the gateway for this interface is down, then the external check cannot work.
+		// Avoid the long wait for the external check to timeout.
+		if (stristr($gateways_status[$config['interfaces'][$int]['gateway']]['status'], "down")) {
+			return "down";
+		}
+		$hosttocheck = "http://checkip.dyndns.org";
+		$ip_ch = curl_init($hosttocheck);
+		curl_setopt($ip_ch, CURLOPT_RETURNTRANSFER, 1);
+		curl_setopt($ip_ch, CURLOPT_SSL_VERIFYPEER, FALSE);
+		curl_setopt($ip_ch, CURLOPT_INTERFACE, 'host!' . $ip_address);
+		curl_setopt($ip_ch, CURLOPT_CONNECTTIMEOUT, '30');
+		curl_setopt($ip_ch, CURLOPT_TIMEOUT, 120);
+		curl_setopt($ip_ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
+		$ip_result_page = curl_exec($ip_ch);
+		curl_close($ip_ch);
+		$ip_result_decoded = urldecode($ip_result_page);
+		preg_match('=Current IP Address: (.*)</body>=siU', $ip_result_decoded, $matches);
+		$ip_address = trim($matches[1]);
+	}
+	return $ip_address;
+}
+
+function services_dnsmasq_configure() {
+	global $config, $g;
+	$return = 0;
+
+	// hard coded args: will be removed to avoid duplication if specified in custom_options
+	$standard_args = array(
+		"dns-forward-max" => "--dns-forward-max=5000",
+		"cache-size" => "--cache-size=10000",
+		"local-ttl" => "--local-ttl=1"
+	);
+
+
+	if (isset($config['system']['developerspew'])) {
+		$mt = microtime();
+		echo "services_dnsmasq_configure() being called $mt\n";
+	}
+
+	/* kill any running dnsmasq */
+	if (file_exists("{$g['varrun_path']}/dnsmasq.pid")) {
+		sigkillbypid("{$g['varrun_path']}/dnsmasq.pid", "TERM");
+	}
+
+	if (isset($config['dnsmasq']['enable'])) {
+
+		if (platform_booting()) {
+			echo gettext("Starting DNS forwarder...");
+		} else {
+			sleep(1);
+		}
+
+		/* generate hosts file */
+		if (system_hosts_generate() != 0) {
+			$return = 1;
+		}
+
+		$args = "";
+
+		if (isset($config['dnsmasq']['regdhcp'])) {
+			$args .= " --dhcp-hostsfile={$g['varetc_path']}/hosts ";
+		}
+
+		/* Setup listen port, if non-default */
+		if (is_port($config['dnsmasq']['port'])) {
+			$args .= " --port={$config['dnsmasq']['port']} ";
+		}
+
+		$listen_addresses = "";
+		if (isset($config['dnsmasq']['interface'])) {
+			$interfaces = explode(",", $config['dnsmasq']['interface']);
+			foreach ($interfaces as $interface) {
+				if (is_ipaddrv4($interface)) {
+					$listen_addresses .= " --listen-address={$interface} ";
+				} else if (is_ipaddrv6($interface)) {
+					/*
+					 * XXX: Since dnsmasq does not support link-local address
+					 * with scope specified. These checks are being done.
+					 */
+					if (is_linklocal($interface) && strstr($interface, "%")) {
+						$tmpaddrll6 = explode("%", $interface);
+						$listen_addresses .= " --listen-address={$tmpaddrll6[0]} ";
+					} else {
+						$listen_addresses .= " --listen-address={$interface} ";
+					}
+				} else if (strstr($interface, "_vip")) {
+					$laddr = get_configured_carp_interface_list($interface);
+					if (is_ipaddr($laddr)) {
+						$listen_addresses .= " --listen-address={$laddr} ";
+					}
+				} else {
+					$if = get_real_interface($interface);
+					if (does_interface_exist($if)) {
+						$laddr = get_interface_ip($interface);
+						if (is_ipaddrv4($laddr)) {
+							$listen_addresses .= " --listen-address={$laddr} ";
+						}
+						$laddr6 = get_interface_ipv6($interface);
+						if (is_ipaddrv6($laddr6) && !isset($config['dnsmasq']['strictbind'])) {
+							/*
+							 * XXX: Since dnsmasq does not support link-local address
+							 * with scope specified. These checks are being done.
+							 */
+							if (is_linklocal($laddr6) && strstr($laddr6, "%")) {
+								$tmpaddrll6 = explode("%", $laddr6);
+								$listen_addresses .= " --listen-address={$tmpaddrll6[0]} ";
+							} else {
+								$listen_addresses .= " --listen-address={$laddr6} ";
+							}
+						}
+					}
+				}
+			}
+			if (!empty($listen_addresses)) {
+				$args .= " {$listen_addresses} ";
+				if (isset($config['dnsmasq']['strictbind'])) {
+					$args .= " --bind-interfaces ";
+				}
+			}
+		}
+
+		/* If selected, then first forward reverse lookups for private IPv4 addresses to nowhere. */
+		/* Only make entries for reverse domains that do not have a matching domain override. */
+		if (isset($config['dnsmasq']['no_private_reverse'])) {
+			/* Note: Carrier Grade NAT (CGN) addresses 100.64.0.0/10 are intentionally not here. */
+			/* End-users should not be aware of CGN addresses, so reverse lookups for these should not happen. */
+			/* Just the pfSense WAN might get a CGN address from an ISP. */
+
+			// Build an array of domain overrides to help in checking for matches.
+			$override_a = array();
+			if (isset($config['dnsmasq']['domainoverrides']) && is_array($config['dnsmasq']['domainoverrides'])) {
+				foreach ($config['dnsmasq']['domainoverrides'] as $override) {
+					$override_a[$override['domain']] = "y";
+				}
+			}
+
+			// Build an array of the private reverse lookup domain names
+			$reverse_domain_a = array("10.in-addr.arpa", "168.192.in-addr.arpa");
+			// Unfortunately the 172.16.0.0/12 range does not map nicely to the in-addr.arpa scheme.
+			for ($subnet_num = 16; $subnet_num < 32; $subnet_num++) {
+				$reverse_domain_a[] = "$subnet_num.172.in-addr.arpa";
+			}
+
+			// Set the --server parameter to nowhere for each reverse domain name that was not specifically specified in a domain override.
+			foreach ($reverse_domain_a as $reverse_domain) {
+				if (!isset($override_a[$reverse_domain])) {
+					$args .= " --server=/$reverse_domain/ ";
+				}
+			}
+			unset($override_a);
+			unset($reverse_domain_a);
+		}
+
+		/* Setup forwarded domains */
+		if (isset($config['dnsmasq']['domainoverrides']) && is_array($config['dnsmasq']['domainoverrides'])) {
+			foreach ($config['dnsmasq']['domainoverrides'] as $override) {
+				if ($override['ip'] == "!") {
+					$override[ip] = "";
+				}
+				$args .= ' --server=/' . $override['domain'] . '/' . $override['ip'];
+			}
+		}
+
+		/* Allow DNS Rebind for forwarded domains */
+		if (isset($config['dnsmasq']['domainoverrides']) && is_array($config['dnsmasq']['domainoverrides'])) {
+			if (!isset($config['system']['webgui']['nodnsrebindcheck'])) {
+				foreach ($config['dnsmasq']['domainoverrides'] as $override) {
+					$args .= ' --rebind-domain-ok=/' . $override['domain'] . '/ ';
+				}
+			}
+		}
+
+		if (!isset($config['system']['webgui']['nodnsrebindcheck'])) {
+			$dns_rebind = "--rebind-localhost-ok --stop-dns-rebind";
+		}
+
+		if (isset($config['dnsmasq']['strict_order'])) {
+			$args .= " --strict-order ";
+		}
+
+		if (isset($config['dnsmasq']['domain_needed'])) {
+			$args .= " --domain-needed ";
+		}
+
+		if ($config['dnsmasq']['custom_options']) {
+			foreach (preg_split('/\s+/', $config['dnsmasq']['custom_options']) as $c) {
+				$args .= " " . escapeshellarg("--{$c}");
+				$p = explode('=', $c);
+				if (array_key_exists($p[0], $standard_args)) {
+					unset($standard_args[$p[0]]);
+				}
+			}
+		}
+		$args .= ' ' . implode(' ', array_values($standard_args));
+
+		/* run dnsmasq */
+		$cmd = "/usr/local/sbin/dnsmasq --all-servers {$dns_rebind} {$args}";
+		//log_error("dnsmasq command: {$cmd}");
+		mwexec_bg($cmd);
+		unset($args);
+
+		system_dhcpleases_configure();
+
+		if (platform_booting()) {
+			echo gettext("done.") . "\n";
+		}
+	}
+
+	if (!platform_booting()) {
+		if (services_dhcpd_configure() != 0) {
+			$return = 1;
+		}
+	}
+
+	return $return;
+}
+
+function services_unbound_configure() {
+	global $config, $g;
+	$return = 0;
+
+	if (isset($config['system']['developerspew'])) {
+		$mt = microtime();
+		echo "services_unbound_configure() being called $mt\n";
+	}
+
+	// kill any running Unbound instance
+	if (file_exists("{$g['varrun_path']}/unbound.pid")) {
+		sigkillbypid("{$g['varrun_path']}/unbound.pid", "TERM");
+	}
+
+	if (isset($config['unbound']['enable'])) {
+		if (platform_booting()) {
+			echo gettext("Starting DNS Resolver...");
+		} else {
+			sleep(1);
+		}
+
+		/* generate hosts file */
+		if (system_hosts_generate() != 0) {
+			$return = 1;
+		}
+
+		require_once('/etc/inc/unbound.inc');
+		sync_unbound_service();
+		if (platform_booting()) {
+			echo gettext("done.") . "\n";
+		}
+
+		system_dhcpleases_configure();
+	}
+
+	if (!platform_booting()) {
+		if (services_dhcpd_configure() != 0) {
+			$return = 1;
+		}
+	}
+
+	return $return;
+}
+
+function services_snmpd_configure() {
+	global $config, $g;
+	if (isset($config['system']['developerspew'])) {
+		$mt = microtime();
+		echo "services_snmpd_configure() being called $mt\n";
+	}
+
+	/* kill any running snmpd */
+	sigkillbypid("{$g['varrun_path']}/snmpd.pid", "TERM");
+	sleep(2);
+	if (is_process_running("bsnmpd")) {
+		mwexec("/usr/bin/killall bsnmpd", true);
+	}
+
+	if (isset($config['snmpd']['enable'])) {
+
+		if (platform_booting()) {
+			echo gettext("Starting SNMP daemon... ");
+		}
+
+		/* generate snmpd.conf */
+		$fd = fopen("{$g['varetc_path']}/snmpd.conf", "w");
+		if (!$fd) {
+			printf(gettext("Error: cannot open snmpd.conf in services_snmpd_configure().%s"), "\n");
+			return 1;
+		}
+
+
+		$snmpdconf = <<<EOD
+location := "{$config['snmpd']['syslocation']}"
+contact := "{$config['snmpd']['syscontact']}"
+read := "{$config['snmpd']['rocommunity']}"
+
+EOD;
+
+/* No docs on what write strings do there for disable for now.
+		if (isset($config['snmpd']['rwenable']) && preg_match('/^\S+$/', $config['snmpd']['rwcommunity'])) {
+			$snmpdconf .= <<<EOD
+# write string
+write := "{$config['snmpd']['rwcommunity']}"
+
+EOD;
+		}
+*/
+
+
+		if (isset($config['snmpd']['trapenable']) && preg_match('/^\S+$/', $config['snmpd']['trapserver'])) {
+			$snmpdconf .= <<<EOD
+# SNMP Trap support.
+traphost := {$config['snmpd']['trapserver']}
+trapport := {$config['snmpd']['trapserverport']}
+trap := "{$config['snmpd']['trapstring']}"
+
+
+EOD;
+		}
+
+		$platform = trim(file_get_contents('/etc/platform'));
+		if (($platform == "pfSense") && ($g['product_name'] != "pfSense")) {
+			$platform = $g['product_name'];
+		}
+		$sysDescr = "{$g['product_name']} " . php_uname("n") .
+			" {$g['product_version']} {$platform} " . php_uname("s") .
+			" " . php_uname("r") . " " . php_uname("m");
+
+		$snmpdconf .= <<<EOD
+system := 1     # pfSense
+%snmpd
+sysDescr			= "{$sysDescr}"
+begemotSnmpdDebugDumpPdus       = 2
+begemotSnmpdDebugSyslogPri      = 7
+begemotSnmpdCommunityString.0.1 = $(read)
+
+EOD;
+
+/* No docs on what write strings do there for disable for now.
+		if (isset($config['snmpd']['rwcommunity']) && preg_match('/^\S+$/', $config['snmpd']['rwcommunity'])) {
+			$snmpdconf .= <<<EOD
+begemotSnmpdCommunityString.0.2 = $(write)
+
+EOD;
+		}
+*/
+
+
+		if (isset($config['snmpd']['trapenable']) && preg_match('/^\S+$/', $config['snmpd']['trapserver'])) {
+			$snmpdconf .= <<<EOD
+begemotTrapSinkStatus.[$(traphost)].$(trapport) = 4
+begemotTrapSinkVersion.[$(traphost)].$(trapport) = 2
+begemotTrapSinkComm.[$(traphost)].$(trapport) = $(trap)
+
+EOD;
+		}
+
+
+		$snmpdconf .= <<<EOD
+begemotSnmpdCommunityDisable    = 1
+
+EOD;
+
+		if (isset($config['snmpd']['bindlan'])) {
+			$config['snmpd']['bindip'] = 'lan';
+			unset($config['snmpd']['bindlan']);
+		}
+		$bind_to_ip = "0.0.0.0";
+		if (isset($config['snmpd']['bindip'])) {
+			if (is_ipaddr($config['snmpd']['bindip'])) {
+				$bind_to_ip = $config['snmpd']['bindip'];
+			} else {
+				$if = get_real_interface($config['snmpd']['bindip']);
+				if (does_interface_exist($if)) {
+					$bind_to_ip = get_interface_ip($config['snmpd']['bindip']);
+				}
+			}
+		}
+
+		if (is_port($config['snmpd']['pollport'])) {
+			$snmpdconf .= <<<EOD
+begemotSnmpdPortStatus.{$bind_to_ip}.{$config['snmpd']['pollport']} = 1
+
+EOD;
+
+		}
+
+		$snmpdconf .= <<<EOD
+begemotSnmpdLocalPortStatus."/var/run/snmpd.sock" = 1
+begemotSnmpdLocalPortType."/var/run/snmpd.sock" = 4
+
+# These are bsnmp macros not php vars.
+sysContact      = $(contact)
+sysLocation     = $(location)
+sysObjectId     = 1.3.6.1.4.1.12325.1.1.2.1.$(system)
+
+snmpEnableAuthenTraps = 2
+
+EOD;
+
+		if (is_array($config['snmpd']['modules'])) {
+			if (isset($config['snmpd']['modules']['mibii'])) {
+			$snmpdconf .= <<<EOD
+begemotSnmpdModulePath."mibII"  = "/usr/lib/snmp_mibII.so"
+
+EOD;
+			}
+
+			if (isset($config['snmpd']['modules']['netgraph'])) {
+				$snmpdconf .= <<<EOD
+begemotSnmpdModulePath."netgraph" = "/usr/lib/snmp_netgraph.so"
+%netgraph
+begemotNgControlNodeName = "snmpd"
+
+EOD;
+			}
+
+			if (isset($config['snmpd']['modules']['pf'])) {
+				$snmpdconf .= <<<EOD
+begemotSnmpdModulePath."pf"     = "/usr/lib/snmp_pf.so"
+
+EOD;
+			}
+
+			if (isset($config['snmpd']['modules']['hostres'])) {
+				/* XXX: hostres module crashes APU - ticket #4403 */
+				$specplatform = system_identify_specific_platform();
+				if ($specplatform['name'] == 'APU') {
+					log_error("'Host Resources' SNMP module was ignored because it can potentially crash system on APU boards");
+				} else {
+					$snmpdconf .= <<<EOD
+begemotSnmpdModulePath."hostres"     = "/usr/lib/snmp_hostres.so"
+
+EOD;
+				}
+				unset($specplatform);
+			}
+
+			if (isset($config['snmpd']['modules']['bridge'])) {
+				$snmpdconf .= <<<EOD
+begemotSnmpdModulePath."bridge"     = "/usr/lib/snmp_bridge.so"
+# config must end with blank line
+
+EOD;
+			}
+			if (isset($config['snmpd']['modules']['ucd'])) {
+				$snmpdconf .= <<<EOD
+begemotSnmpdModulePath."ucd"     = "/usr/local/lib/snmp_ucd.so"
+
+EOD;
+			}
+			if (isset($config['snmpd']['modules']['regex'])) {
+				$snmpdconf .= <<<EOD
+begemotSnmpdModulePath."regex"     = "/usr/local/lib/snmp_regex.so"
+
+EOD;
+			}
+		}
+
+		fwrite($fd, $snmpdconf);
+		fclose($fd);
+		unset($snmpdconf);
+
+		if (isset($config['snmpd']['bindlan'])) {
+			$bindlan = "";
+		}
+
+		/* run bsnmpd */
+		mwexec("/usr/sbin/bsnmpd -c {$g['varetc_path']}/snmpd.conf" .
+			"{$bindlan} -p {$g['varrun_path']}/snmpd.pid");
+
+		if (platform_booting()) {
+			echo gettext("done.") . "\n";
+		}
+	}
+
+	return 0;
+}
+
+function services_dnsupdate_process($int = "", $updatehost = "", $forced = false) {
+	global $config, $g;
+	if (isset($config['system']['developerspew'])) {
+		$mt = microtime();
+		echo "services_dnsupdate_process() being called $mt\n";
+	}
+
+	/* Dynamic DNS updating active? */
+	if (is_array($config['dnsupdates']['dnsupdate'])) {
+		$notify_text = "";
+		foreach ($config['dnsupdates']['dnsupdate'] as $i => $dnsupdate) {
+			if (!isset($dnsupdate['enable'])) {
+				continue;
+			}
+			if (!empty($int) && $int != $dnsupdate['interface']) {
+				continue;
+			}
+			if (!empty($updatehost) && ($updatehost != $dnsupdate['host'])) {
+				continue;
+			}
+
+			/* determine interface name */
+			$if = get_real_interface($dnsupdate['interface']);
+
+			if (isset($dnsupdate['usepublicip'])) {
+				$wanip = dyndnsCheckIP($dnsupdate['interface']);
+			} else {
+				$wanip = get_interface_ip($dnsupdate['interface']);
+			}
+
+			$wanipv6 = get_interface_ipv6($dnsupdate['interface']);
+			$cacheFile = "{$g['conf_path']}/dyndns_{$dnsupdate['interface']}_rfc2136_" . escapeshellarg($dnsupdate['host']) . "_{$dnsupdate['server']}.cache";
+			$currentTime = time();
+
+			if ($wanip || $wanipv6) {
+				$keyname = $dnsupdate['keyname'];
+				/* trailing dot */
+				if (substr($keyname, -1) != ".") {
+					$keyname .= ".";
+				}
+
+				$hostname = $dnsupdate['host'];
+				/* trailing dot */
+				if (substr($hostname, -1) != ".") {
+					$hostname .= ".";
+				}
+
+				/* write private key file
+				   this is dumb - public and private keys are the same for HMAC-MD5,
+				   but nsupdate insists on having both */
+				$fd = fopen("{$g['varetc_path']}/K{$i}{$keyname}+157+00000.private", "w");
+				$privkey = <<<EOD
+Private-key-format: v1.2
+Algorithm: 157 (HMAC)
+Key: {$dnsupdate['keydata']}
+
+EOD;
+				fwrite($fd, $privkey);
+				fclose($fd);
+
+				/* write public key file */
+				if ($dnsupdate['keytype'] == "zone") {
+					$flags = 257;
+					$proto = 3;
+				} else if ($dnsupdate['keytype'] == "host") {
+					$flags = 513;
+					$proto = 3;
+				} else if ($dnsupdate['keytype'] == "user") {
+					$flags = 0;
+					$proto = 2;
+				}
+
+				$fd = fopen("{$g['varetc_path']}/K{$i}{$keyname}+157+00000.key", "w");
+				fwrite($fd, "{$keyname} IN KEY {$flags} {$proto} 157 {$dnsupdate['keydata']}\n");
+				fclose($fd);
+
+				/* generate update instructions */
+				$upinst = "";
+				if (!empty($dnsupdate['server'])) {
+					$upinst .= "server {$dnsupdate['server']}\n";
+				}
+
+				if (file_exists($cacheFile)) {
+					list($cachedipv4, $cacheTimev4) = explode("|", file_get_contents($cacheFile));
+				}
+				if (file_exists("{$cacheFile}.ipv6")) {
+					list($cachedipv6, $cacheTimev6) = explode("|", file_get_contents("{$cacheFile}.ipv6"));
+				}
+
+				// 25 Days
+				$maxCacheAgeSecs = 25 * 24 * 60 * 60;
+				$need_update = false;
+
+				conf_mount_rw();
+				/* Update IPv4 if we have it. */
+				if (is_ipaddrv4($wanip) && $dnsupdate['recordtype'] != "AAAA") {
+					if (($wanip != $cachedipv4) || (($currentTime - $cacheTimev4) > $maxCacheAgeSecs) || $forced) {
+						$upinst .= "update delete {$dnsupdate['host']}. A\n";
+						$upinst .= "update add {$dnsupdate['host']}. {$dnsupdate['ttl']} A {$wanip}\n";
+						$notify_text .= sprintf(gettext("DynDNS updated IP Address (A) for {$dnsupdate['host']} on %s (%s) to %s"), convert_real_interface_to_friendly_descr($if), $if, $wanip) . "\n";
+						@file_put_contents($cacheFile, "{$wanip}|{$currentTime}");
+						log_error("phpDynDNS: updating cache file {$cacheFile}: {$wanip}");
+						$need_update = true;
+					} else {
+						log_error("phpDynDNS: Not updating {$dnsupdate['host']} A record because the IP address has not changed.");
+					}
+				} else {
+					@unlink($cacheFile);
+				}
+
+				/* Update IPv6 if we have it. */
+				if (is_ipaddrv6($wanipv6) && $dnsupdate['recordtype'] != "A") {
+					if (($wanipv6 != $cachedipv6) || (($currentTime - $cacheTimev6) > $maxCacheAgeSecs) || $forced) {
+						$upinst .= "update delete {$dnsupdate['host']}. AAAA\n";
+						$upinst .= "update add {$dnsupdate['host']}. {$dnsupdate['ttl']} AAAA {$wanipv6}\n";
+						$notify_text .= sprintf(gettext("DynDNS updated IPv6 Address (AAAA) for {$dnsupdate['host']} on %s (%s) to %s"), convert_real_interface_to_friendly_descr($if), $if, $wanipv6) . "\n";
+						@file_put_contents("{$cacheFile}.ipv6", "{$wanipv6}|{$currentTime}");
+						log_error("phpDynDNS: updating cache file {$cacheFile}.ipv6: {$wanipv6}");
+						$need_update = true;
+					} else {
+						log_error("phpDynDNS: Not updating {$dnsupdate['host']} AAAA record because the IPv6 address has not changed.");
+					}
+				} else {
+					@unlink("{$cacheFile}.ipv6");
+				}
+				conf_mount_ro();
+
+				$upinst .= "\n";	/* mind that trailing newline! */
+
+				if ($need_update) {
+					@file_put_contents("{$g['varetc_path']}/nsupdatecmds{$i}", $upinst);
+					unset($upinst);
+					/* invoke nsupdate */
+					$cmd = "/usr/local/bin/nsupdate -k {$g['varetc_path']}/K{$i}{$keyname}+157+00000.key";
+					if (isset($dnsupdate['usetcp'])) {
+						$cmd .= " -v";
+					}
+					$cmd .= " {$g['varetc_path']}/nsupdatecmds{$i}";
+					mwexec_bg($cmd);
+					unset($cmd);
+				}
+			}
+		}
+		if (!empty($notify_text)) {
+			notify_all_remote($notify_text);
+		}
+	}
+
+	return 0;
+}
+
+/* configure cron service */
+function configure_cron() {
+	global $g, $config;
+
+	conf_mount_rw();
+	/* preserve existing crontab entries */
+	$crontab_contents = file("/etc/crontab", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+
+	for ($i = 0; $i < count($crontab_contents); $i++) {
+		$cron_item =& $crontab_contents[$i];
+		if (strpos($cron_item, "# pfSense specific crontab entries") !== false) {
+			array_splice($crontab_contents, $i - 1);
+			break;
+		}
+	}
+	$crontab_contents = implode("\n", $crontab_contents) . "\n";
+
+
+	if (is_array($config['cron']['item'])) {
+		$crontab_contents .= "#\n";
+		$crontab_contents .= "# " . gettext("pfSense specific crontab entries") . "\n";
+		$crontab_contents .= "# " .gettext("Created:") . " " . date("F j, Y, g:i a") . "\n";
+		$crontab_contents .= "#\n";
+
+		if (isset($config['system']['proxyurl']) && !empty($config['system']['proxyurl'])) {
+			$http_proxy = $config['system']['proxyurl'];
+			if (isset($config['system']['proxyport']) && !empty($config['system']['proxyport'])) {
+				$http_proxy .= ':' . $config['system']['proxyport'];
+			}
+			$crontab_contents .= "HTTP_PROXY={$http_proxy}";
+		}
+
+		foreach ($config['cron']['item'] as $item) {
+			$crontab_contents .= "\n{$item['minute']}\t";
+			$crontab_contents .= "{$item['hour']}\t";
+			$crontab_contents .= "{$item['mday']}\t";
+			$crontab_contents .= "{$item['month']}\t";
+			$crontab_contents .= "{$item['wday']}\t";
+			$crontab_contents .= "{$item['who']}\t";
+			$crontab_contents .= "{$item['command']}";
+		}
+
+		$crontab_contents .= "\n#\n";
+		$crontab_contents .= "# " . gettext("If possible do not add items to this file manually.") . "\n";
+		$crontab_contents .= "# " . gettext("If you do so, this file must be terminated with a blank line (e.g. new line)") . "\n";
+		$crontab_contents .= "#\n\n";
+	}
+
+	/* please maintain the newline at the end of file */
+	file_put_contents("/etc/crontab", $crontab_contents);
+	unset($crontab_contents);
+
+	/* do a HUP kill to force sync changes */
+	sigkillbypid("{$g['varrun_path']}/cron.pid", "HUP");
+
+	conf_mount_ro();
+}
+
+function upnp_action ($action) {
+	global $g, $config;
+	switch ($action) {
+		case "start":
+			if (file_exists('/var/etc/miniupnpd.conf')) {
+				@unlink("{$g['varrun_path']}/miniupnpd.pid");
+				mwexec_bg("/usr/local/sbin/miniupnpd -f /var/etc/miniupnpd.conf -P {$g['varrun_path']}/miniupnpd.pid");
+			}
+			break;
+		case "stop":
+			killbypid("{$g['varrun_path']}/miniupnpd.pid");
+			while ((int)exec("/bin/pgrep -a miniupnpd | wc -l") > 0) {
+				mwexec('killall miniupnpd 2>/dev/null', true);
+			}
+			mwexec('/sbin/pfctl -aminiupnpd -Fr 2>&1 >/dev/null');
+			mwexec('/sbin/pfctl -aminiupnpd -Fn 2>&1 >/dev/null');
+			break;
+		case "restart":
+			upnp_action('stop');
+			upnp_action('start');
+			break;
+	}
+}
+
+function upnp_start() {
+	global $config;
+
+	if (!isset($config['installedpackages']['miniupnpd']['config'])) {
+		return;
+	}
+
+	if ($config['installedpackages']['miniupnpd']['config'][0]['enable']) {
+		echo gettext("Starting UPnP service... ");
+		require_once('/usr/local/pkg/miniupnpd.inc');
+		sync_package_miniupnpd();
+		echo "done.\n";
+	}
+}
+
+function install_cron_job($command, $active = false, $minute = "0", $hour = "*", $monthday = "*", $month = "*", $weekday = "*", $who = "root") {
+	global $config, $g;
+
+	$is_installed = false;
+	$cron_changed = true;
+
+	if (!is_array($config['cron'])) {
+		$config['cron'] = array();
+	}
+	if (!is_array($config['cron']['item'])) {
+		$config['cron']['item'] = array();
+	}
+
+	$x = 0;
+	foreach ($config['cron']['item'] as $item) {
+		if (strstr($item['command'], $command)) {
+			$is_installed = true;
+			break;
+		}
+		$x++;
+	}
+
+	if ($active) {
+		$cron_item = array();
+		$cron_item['minute'] = $minute;
+		$cron_item['hour'] = $hour;
+		$cron_item['mday'] = $monthday;
+		$cron_item['month'] = $month;
+		$cron_item['wday'] = $weekday;
+		$cron_item['who'] = $who;
+		$cron_item['command'] = $command;
+		if (!$is_installed) {
+			$config['cron']['item'][] = $cron_item;
+			write_config(sprintf(gettext("Installed cron job for %s"), $command));
+		} else {
+			if ($config['cron']['item'][$x] == $cron_item) {
+				$cron_changed = false;
+				log_error(sprintf(gettext("Checked cron job for %s, no change needed"), $command));
+			} else {
+				$config['cron']['item'][$x] = $cron_item;
+				write_config(sprintf(gettext("Updated cron job for %s"), $command));
+			}
+		}
+	} else {
+		if ($is_installed == true) {
+			unset($config['cron']['item'][$x]);
+			write_config(sprintf(gettext("Removed cron job for %s"), $command));
+		}
+	}
+
+	if ($cron_changed) {
+		configure_cron();
+	}
+}
+
+?>