<commit_before><?php
/* $Id$ */
/*
	interfaces.php
	Copyright (C) 2007 <NAME>
	Copyright (C) 2008 <NAME>
	All rights reserved.

	originally part of m0n0wall (http://m0n0.ch/wall)
	Copyright (C) 2003-2004 <NAME> <<EMAIL>>.
	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.
*/

##|+PRIV
##|*IDENT=page-interfaces
##|*NAME=Interfaces: WAN page
##|*DESCR=Allow access to the 'Interfaces' page.
##|*MATCH=interfaces.php*
##|-PRIV

if ($_REQUEST['if'])
	$if = $_REQUEST['if'];
else
	$if = "wan";

define("CRON_MONTHLY_PATTERN", "0 0 1 * *");
define("CRON_WEEKLY_PATTERN", "0 0 * * 0");
define("CRON_DAILY_PATTERN", "0 0 * * *");
define("CRON_HOURLY_PATTERN", "0 * * * *");
define("CRON_PPPOE_CMD_FILE", "/etc/pppoerestart");
define("CRON_PPPOE_CMD", "#!/bin/sh\necho '<?php require(\"interfaces.inc\"); interfaces_wan_pppoe_restart($if); services_dyndns_reset($if); ?>' | /usr/local/bin/php -q");

function getMPDCRONSettings() {
  global $config;

  if (is_array($config['cron']['item'])) {
    for ($i = 0; $i < count($config['cron']['item']); $i++) {
      $item = $config['cron']['item'][$i];

      if (strpos($item['command'], CRON_PPPOE_CMD_FILE) !== false) {
        return array("ID" => $i, "ITEM" => $item);
      }
    }
  }

  return NULL;
}

function getMPDResetTimeFromConfig() {
  $itemhash = getMPDCRONSettings();
  $cronitem = $itemhash['ITEM'];

  if (isset($cronitem)) {

    return "{$cronitem['minute']} {$cronitem['hour']} {$cronitem['mday']} {$cronitem['month']} {$cronitem['wday']}";
  } else {
    return NULL;
  }
}

function remove_bad_chars($string) {
        return preg_replace('/[^a-z|_|0-9]/i','',$string);
}

require("guiconfig.inc");

if (!is_array($config['gateways']['gateway_item']))
	$config['gateways']['gateway_item'] = array();
$a_gateways = &$config['gateways']['gateway_item'];

$wancfg = &$config['interfaces'][$if];

$pconfig['pppoe_username'] = $wancfg['pppoe_username'];
$pconfig['pppoe_password'] = $wancfg['<PASSWORD>'];
$pconfig['provider'] = $wancfg['provider'];
$pconfig['pppoe_dialondemand'] = isset($wancfg['ondemand']);
$pconfig['pppoe_idletimeout'] = $wancfg['timeout'];

/* ================================================ */
/* = force a connection reset at a specific time? = */
/* ================================================ */

if (isset($wancfg['pppoe']['pppoe-reset-type'])) {
  $resetTime = getMPDResetTimeFromConfig();  
  $pconfig['pppoe_preset'] = true;
  
  if ($wancfg['pppoe']['pppoe-reset-type'] == "custom") {
    $resetTime_a = split(" ", $resetTime);
    $pconfig['pppoe_pr_custom'] = true;
    $pconfig['pppoe_resetminute'] = $resetTime_a[0];
    $pconfig['pppoe_resethour'] = $resetTime_a[1];

    /* just initialize $pconfig['pppoe_resetdate'] if the
     * coresponding item contains appropriate numeric values.
     */
    if ($resetTime_a[2] <> "*" && $resetTime_a[3] <> "*") {
      $pconfig['pppoe_resetdate'] = "{$resetTime_a[3]}/{$resetTime_a[2]}/" . date("Y");
    }
  } else if ($wancfg['pppoe']['pppoe-reset-type'] == "preset") {
    $pconfig['pppoe_pr_preset'] = true;
    
    switch ($resetTime) {
      case CRON_MONTHLY_PATTERN:
        $pconfig['pppoe_monthly'] = true;
        break;
      case CRON_WEEKLY_PATTERN:
        $pconfig['pppoe_weekly'] = true;
        break;
      case CRON_DAILY_PATTERN:
        $pconfig['pppoe_daily'] = true;
        break;
      case CRON_HOURLY_PATTERN:
        $pconfig['pppoe_hourly'] = true;
        break;
    }
  }
}

$pconfig['pptp_username'] = $wancfg['pptp_username'];
$pconfig['pptp_password'] = $wancfg['pptp_password'];
$pconfig['pptp_local'] = $wancfg['local'];
$pconfig['pptp_subnet'] = $wancfg['subnet'];
$pconfig['pptp_remote'] = $wancfg['remote'];
$pconfig['pptp_dialondemand'] = isset($wancfg['ondemand']);
$pconfig['pptp_idletimeout'] = $wancfg['timeout'];

$pconfig['disableftpproxy'] = isset($wancfg['disableftpproxy']);

$pconfig['dhcphostname'] = $wancfg['dhcphostname'];
$pconfig['alias-address'] = $wancfg['alias-address'];
$pconfig['alias-subnet'] = $wancfg['alias-subnet'];

// Populate page descr if it does not exist.
if($if == "wan" && !$wancfg['descr'])
        $wancfg['descr'] = "WAN";
else if ($if == "lan" && !$wancfg['descr'])
        $wancfg['descr'] = "LAN";
$pconfig['descr'] = remove_bad_chars($wancfg['descr']);

if ($if == "wan" || $if == "lan")
	$pconfig['enable'] = true;
else
	$pconfig['enable'] = isset($wancfg['enable']);

if (is_array($config['aliases']['alias']))
foreach($config['aliases']['alias'] as $alias)
        if($alias['name'] == $wancfg['descr'])
                $input_errors[] = gettext("Sorry, an alias with the name {$wancfg['descr']} a
lready exists.");

if ($wancfg['ipaddr'] == "dhcp") {
	$pconfig['type'] = "dhcp";
} else if ($wancfg['ipaddr'] == "carpdev-dhcp") {
	$pconfig['type'] = "carpdev-dhcp";
	$pconfig['ipaddr'] = "";	    
} else if ($wancfg['ipaddr'] == "pppoe") {
	$pconfig['type'] = "pppoe";
} else if ($wancfg['ipaddr'] == "pptp") {
	$pconfig['type'] = "pptp";
} else if ($wancfg['ipaddr'] != "") {
	$pconfig['type'] = "static";
	$pconfig['ipaddr'] = $wancfg['ipaddr'];
	$pconfig['subnet'] = $wancfg['subnet'];
	$pconfig['gateway'] = $wancfg['gateway'];
	$pconfig['pointtopoint'] = $wancfg['pointtopoint'];
} else
	$pconfig['type'] = "none";

$pconfig['blockpriv'] = isset($wancfg['blockpriv']);
$pconfig['blockbogons'] = isset($wancfg['blockbogons']);
$pconfig['spoofmac'] = $wancfg['spoofmac'];
$pconfig['mtu'] = $wancfg['mtu'];

/* Wireless interface? */
if (isset($wancfg['wireless'])) {
	/* Get wireless modes */
	$curif = convert_friendly_interface_to_real_interface_name($if);
	$wl_modes = get_wireless_modes($curif);
	
	$pconfig['standard'] = $wancfg['wireless']['standard'];
	$pconfig['mode'] = $wancfg['wireless']['mode'];
	$pconfig['protmode'] = $wancfg['wireless']['protmode'];
	$pconfig['ssid'] = $wancfg['wireless']['ssid'];
	$pconfig['channel'] = $wancfg['wireless']['channel'];
	$pconfig['txpower'] = $wancfg['wireless']['txpower'];
	$pconfig['distance'] = $wancfg['wireless']['distance'];
	$pconfig['wme_enable'] = isset($wancfg['wireless']['wme']['enable']);
	$pconfig['pureg_enable'] = isset($wancfg['wireless']['pureg']['enable']);
	$pconfig['apbridge_enable'] = isset($wancfg['wireless']['apbridge']['enable']);
	$pconfig['authmode'] = $wancfg['wireless']['authmode'];
	$pconfig['hidessid_enable'] = isset($wancfg['wireless']['hidessid']['enable']);
	if (is_array($wancfg['wireless']['wpa'])) {
		$pconfig['debug_mode'] = $wancfg['wireless']['wpa']['debug_mode'];
		$pconfig['macaddr_acl'] = $wancfg['wireless']['wpa']['macaddr_acl'];
		$pconfig['mac_acl_enable'] = isset($wancfg['wireless']['wpa']['mac_acl_enable']);
		$pconfig['auth_algs'] = $wancfg['wireless']['wpa']['auth_algs'];
		$pconfig['wpa_mode'] = $wancfg['wireless']['wpa']['wpa_mode'];
		$pconfig['wpa_key_mgmt'] = $wancfg['wireless']['wpa']['wpa_key_mgmt'];
		$pconfig['wpa_pairwise'] = $wancfg['wireless']['wpa']['wpa_pairwise'];
		$pconfig['wpa_group_rekey'] = $wancfg['wireless']['wpa']['wpa_group_rekey'];
		$pconfig['wpa_gmk_rekey'] = $wancfg['wireless']['wpa']['wpa_gmk_rekey'];
		$pconfig['wpa_strict_rekey'] = isset($wancfg['wireless']['wpa']['wpa_strict_rekey']);
		$pconfig['passphrase'] = $wancfg['wireless']['wpa']['passphrase'];
		$pconfig['ieee8021x'] = isset($wancfg['wireless']['wpa']['ieee8021x']['enable']);
		$pconfig['ext_wpa_sw'] = $wancfg['wireless']['wpa']['ext_wpa_sw'];
		$pconfig['wpa_enable'] = isset($wancfg['wireless']['wpa']['enable']);
	}
	$pconfig['wep_enable'] = isset($wancfg['wireless']['wep']['enable']);
	$pconfig['mac_acl'] = $wancfg['wireless']['mac_acl'];

	if (is_array($wancfg['wireless']['wep']) &&
		is_array($wancfg['wireless']['wep']['key'])) {
		$i = 1;
		foreach ($wancfg['wireless']['wep']['key'] as $wepkey) {
			$pconfig['key' . $i] = $wepkey['value'];
			if (isset($wepkey['txkey']))
				$pconfig['txkey'] = $i;
			$i++;
		}
		if (!isset($wepkey['txkey']))
			$pconfig['txkey'] = 1;
	}
}

if ($_POST['apply']) {

	unset($input_errors);
	if (!file_exists($d_landirty_path))
		$intput_errors[] = "You have already applied your settings!";
	else {	
               	unlink_if_exists("{$g['tmp_path']}/config.cache");
		unlink_if_exists("{$d_landirty_path}");

		/* ermal -- do not think these are needed at all.
                ob_flush();
                flush();
                sleep(1);
		*/

                interface_configure($if);

		system_start_ftp_helpers();

                reset_carp();

		if ($if == "lan") {
			/* restart snmp so that it binds to correct address */
			services_snmpd_configure();
			$savemsg = "The changes have been applied.  You may need to correct your web browser's IP address.";
		} 

                /* sync filter configuration */
		config_lock();
                filter_configure();
		config_unlock();

                /* set up static routes */
                system_routing_configure();
	}
	header("Location: interfaces.php?if={$if}");
	exit;
} else if ($_POST) {

	unset($input_errors);
	$pconfig = $_POST;
  
	/* filter out spaces from descriptions  */
        $_POST['descr'] = remove_bad_chars($_POST['descr']);

	/* okay first of all, cause we are just hidding the PPPoE HTML
         * fields releated to PPPoE resets, we are going to unset $_POST
         * vars, if the reset feature should not be used. Otherwise the
         * data validation procedure below, may trigger a false error
         * message.
         */        
	if (empty($_POST['pppoe_preset'])) {
                unset($_POST['pppoe_pr_type']);                
		unset($_POST['pppoe_resethour']);
                unset($_POST['pppoe_resetminute']);
                unset($_POST['pppoe_resetdate']);
                unset($_POST['pppoe_pr_preset_val']);                
		unlink_if_exists(CRON_PPPOE_CMD_FILE);
        }

	if ($_POST['enable'] == "yes" || $if == "wan" || $if == "lan") {
		/* optional interface if list */
                $iflist = get_configured_interface_with_descr();

                /* description unique? */
                foreach ($iflist as $ifent => $ifdescr) {
                        if ($if != $ifent && $ifdescr == $_POST['descr'])
                                $input_errors[] = "An interface with the specified description already exists.";

                }

	/* input validation */
	if ($_POST['type'] == "static") {
		$reqdfields = explode(" ", "ipaddr subnet gateway");
		$reqdfieldsn = explode(",", "IP address,Subnet bit count,Gateway");
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
	} else if ($_POST['type'] == "PPPoE") {
		if ($_POST['pppoe_dialondemand']) {
			$reqdfields = explode(" ", "pppoe_username pppoe_password pppoe_dialondemand pppoe_idletimeout");
			$reqdfieldsn = explode(",", "PPPoE username,PPPoE password,Dial on demand,Idle timeout value");
		} else {
			$reqdfields = explode(" ", "pppoe_username pppoe_password");
			$reqdfieldsn = explode(",", "PPPoE username,PPPoE password");
		}
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
	} else if ($_POST['type'] == "PPTP") {
		if ($_POST['pptp_dialondemand']) {
			$reqdfields = explode(" ", "pptp_username pptp_password pptp_local pptp_subnet pptp_remote pptp_dialondemand pptp_idletimeout");
			$reqdfieldsn = explode(",", "PPTP username,PPTP password,PPTP local IP address,PPTP subnet,PPTP remote IP address,Dial on demand,Idle timeout value");
		} else {
			$reqdfields = explode(" ", "pptp_username pptp_password pptp_local pptp_subnet pptp_remote");
			$reqdfieldsn = explode(",", "PPTP username,PPTP password,PPTP local IP address,PPTP subnet,PPTP remote IP address");
		}
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
	}

	/* normalize MAC addresses - lowercase and convert Windows-ized hyphenated MACs to colon delimited */
	$_POST['spoofmac'] = strtolower(str_replace("-", ":", $_POST['spoofmac']));

	if (($_POST['ipaddr'] && !is_ipaddr($_POST['ipaddr']))) {
		$input_errors[] = "A valid IP address must be specified.";
	}
	if (($_POST['subnet'] && !is_numeric($_POST['subnet']))) {
		$input_errors[] = "A valid subnet bit count must be specified.";
	}
	if (($_POST['alias-address'] && !is_ipaddr($_POST['alias-address']))) {
		$input_errors[] = "A valid alias IP address must be specified.";
	}
	if (($_POST['alias-subnet'] && !is_numeric($_POST['alias-subnet']))) {
		$input_errors[] = "A valid alias subnet bit count must be specified.";
	}
	if ($_POST['gateway'] != "none") {
		$match = false;
		foreach($a_gateways as $gateway) {
			if(in_array($_POST['gateway'], $gateway)) {
				$match = true;
			}
		}
		if(!$match)
			$input_errors[] = "A valid gateway must be specified.";
	}
	if (($_POST['pointtopoint'] && !is_ipaddr($_POST['pointtopoint']))) {
		$input_errors[] = "A valid point-to-point IP address must be specified.";
	}
	if (($_POST['provider'] && !is_domain($_POST['provider']))) {
		$input_errors[] = "The service name contains invalid characters.";
	}
	if (($_POST['pppoe_idletimeout'] != "") && !is_numericint($_POST['pppoe_idletimeout'])) {
		$input_errors[] = "The idle timeout value must be an integer.";
	}
	if ($_POST['pppoe_resethour'] <> "" && !is_numericint($_POST['pppoe_resethour']) && 
		$_POST['pppoe_resethour'] >= 0 && $_POST['pppoe_resethour'] <=23) {
		$input_errors[] = gettext("A valid PPPoE reset hour must be specified (0-23).");
	}
	if ($_POST['pppoe_resetminute'] <> "" && !is_numericint($_POST['pppoe_resetminute']) && 
		$_POST['pppoe_resetminute'] >= 0 && $_POST['pppoe_resetminute'] <=59) {
		$input_errors[] = gettext("A valid PPPoE reset minute must be specified (0-59).");
	}
	if ($_POST['pppoe_resetdate'] <> "" && !is_numeric(str_replace("/", "", $_POST['pppoe_resetdate']))) {
		$input_errors[] = gettext("A valid PPPoE reset date must be specified (mm/dd/yyyy).");
	}
	if (($_POST['pptp_local'] && !is_ipaddr($_POST['pptp_local']))) {
		$input_errors[] = "A valid PPTP local IP address must be specified.";
	}
	if (($_POST['pptp_subnet'] && !is_numeric($_POST['pptp_subnet']))) {
		$input_errors[] = "A valid PPTP subnet bit count must be specified.";
	}
	if (($_POST['pptp_remote'] && !is_ipaddr($_POST['pptp_remote']))) {
		$input_errors[] = "A valid PPTP remote IP address must be specified.";
	}
	if (($_POST['pptp_idletimeout'] != "") && !is_numericint($_POST['pptp_idletimeout'])) {
		$input_errors[] = "The idle timeout value must be an integer.";
	}
	if (($_POST['spoofmac'] && !is_macaddr($_POST['spoofmac']))) {
		$input_errors[] = "A valid MAC address must be specified.";
	}
	if ($_POST['mtu'] && ($_POST['mtu'] < 576)) {
		$input_errors[] = "The MTU must be greater than 576 bytes.";
	}

	/* Wireless interface? */
	if (isset($wancfg['wireless'])) {
		$reqdfields = explode(" ", "mode ssid");
		$reqdfieldsn = explode(",", "Mode,SSID");
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);

		/* loop through keys and enforce size */
		for ($i = 1; $i <= 4; $i++) {
			if ($_POST['key' . $i]) {
				/* 64 bit */
				if (strlen($_POST['key' . $i]) == 5)
					continue;
				if (strlen($_POST['key' . $i]) == 10) {
					/* hex key */
					if (stristr($_POST['key' . $i], "0x") == false) {
						$_POST['key' . $i] = "0x" . $_POST['key' . $i];
					}
					continue;
				}
				if (strlen($_POST['key' . $i]) == 12) {
					/* hex key */
					if(stristr($_POST['key' . $i], "0x") == false) {
					$_POST['key' . $i] = "0x" . $_POST['key' . $i];
					}
					continue;
				}
				/* 128 bit */
				if (strlen($_POST['key' . $i]) == 13)
					continue;
				if (strlen($_POST['key' . $i]) == 26) {
					/* hex key */
					if (stristr($_POST['key' . $i], "0x") == false)
						$_POST['key' . $i] = "0x" . $_POST['key' . $i];
					continue;
				}
				if(strlen($_POST['key' . $i]) == 28)
					continue;
				$input_errors[] =  "Invalid wep key size.   Sizes should be 40 (64) bit keys or 104 (128) bit.";
				break;
			}
		}
	}

	if (!$input_errors) {

		unset($wancfg['ipaddr']);
		unset($wancfg['subnet']);
		unset($wancfg['gateway']);
		unset($wancfg['pointtopoint']);
		unset($wancfg['dhcphostname']);
		unset($wancfg['pppoe_username']);
		unset($wancfg['pppoe_password']);
		unset($wancfg['pptp_username']);
		unset($wancfg['pptp_password']);
		unset($wancfg['provider']);
		unset($wancfg['ondemand']);
		unset($wancfg['timeout']);
		if ($wancfg['pppoe']['pppoe-reset-type'])
			unset($wancfg['pppoe']['pppoe-reset-type']);
		unset($wancfg['local']);
		unset($wancfg['subnet']);
		unset($wancfg['remote']);
		unset($wancfg['disableftpproxy']);

		/* per interface pftpx helper */
		if ($_POST['disableftpproxy'] == "yes")
			$wancfg['disableftpproxy'] = true;

		$wancfg['descr'] = remove_bad_chars($_POST['descr']);
		if ($if == "wan" || $if == "lan")
			$wancfg['enable'] = true;
		else
			$wancfg['enable'] =  $_POST['enable']  == "yes" ? true : false;

		if ($_POST['type'] == "static") {
			$wancfg['ipaddr'] = $_POST['ipaddr'];
			$wancfg['subnet'] = $_POST['subnet'];
			if ($_POST['gateway'] != "none")
				$wancfg['gateway'] = $_POST['gateway'];
			if (isset($wancfg['ispointtopoint']))
				$wancfg['pointtopoint'] = $_POST['pointtopoint'];
		} else if ($_POST['type'] == "dhcp") {
			$wancfg['ipaddr'] = "dhcp";
			$wancfg['dhcphostname'] = $_POST['dhcphostname'];
			$wancfg['alias-address'] = $_POST['alias-address'];
			$wancfg['alias-subnet'] = $_POST['alias-subnet'];
		} else if ($_POST['type'] == "carpdev-dhcp") {
			$wancfg['ipaddr'] = "carpdev-dhcp";
			$wancfg['dhcphostname'] = $_POST['dhcphostname'];
			$wancfg['alias-address'] = $_POST['alias-address'];
			$wancfg['alias-subnet'] = $_POST['alias-subnet'];			
		} else if ($_POST['type'] == "pppoe") {
			$wancfg['ipaddr'] = "pppoe";
			$wancfg['pppoe_username'] = $_POST['pppoe_username'];
			$wancfg['pppoe_password'] = $_POST['pppoe_password'];
			$wancfg['provider'] = $_POST['provider'];
			$wancfg['ondemand'] = $_POST['pppoe_dialondemand'] ? true : false;
			$wancfg['timeout'] = $_POST['pppoe_idletimeout'];
      
			/* perform a periodic reset? */
			if (isset($_POST['pppoe_preset'])) {
				if (! is_array($config['cron']['item'])) 
					$config['cron']['item'] = array(); 

					$itemhash = getMPDCRONSettings();
					$item = $itemhash['ITEM'];

					if (empty($item)) {
						$item = array();
					}

					if (isset($_POST['pppoe_pr_type']) && $_POST['pppoe_pr_type'] == "custom") {
						$wancfg['pppoe']['pppoe-reset-type'] = "custom";
						$pconfig['pppoe_pr_custom'] = true;

						$item['minute'] = $_POST['pppoe_resetminute'];
						$item['hour'] = $_POST['pppoe_resethour'];

						if (isset($_POST['pppoe_resetdate']) && 
							$_POST['pppoe_resetdate'] <> "" && 
							strlen($_POST['pppoe_resetdate']) == 10) {
							$date = explode("/", $_POST['pppoe_resetdate']);
							$item['mday'] = $date[1];
							$item['month'] = $date[0];
						} else {
							$item['mday'] = "*";
							$item['month'] = "*";
						}
						$item['wday'] = "*";
						$item['who'] = "root";
						$item['command'] = CRON_PPPOE_CMD_FILE;
					} else if (isset($_POST['pppoe_pr_type']) && $_POST['pppoe_pr_type'] = "preset") {
						$wancfg['pppoe']['pppoe-reset-type'] = "preset";
						$pconfig['pppoe_pr_preset'] = true;

						switch ($_POST['pppoe_pr_preset_val']) {
							case "monthly":
								$item['minute'] = "0";
								$item['hour'] = "0";
								$item['mday'] = "1";
								$item['month'] = "*";
								$item['wday'] = "*";
								$item['who'] = "root";
								$item['command'] = CRON_PPPOE_CMD_FILE;
								break;
					        	case "weekly":
								$item['minute'] = "0";
								$item['hour'] = "0";
								$item['mday'] = "*";
								$item['month'] = "*";
								$item['wday'] = "0";
								$item['who'] = "root";
								$item['command'] = CRON_PPPOE_CMD_FILE;
								break;
							case "daily":
								$item['minute'] = "0";
								$item['hour'] = "0";
								$item['mday'] = "*";
								$item['month'] = "*";
								$item['wday'] = "*";
								$item['who'] = "root";
								$item['command'] = CRON_PPPOE_CMD_FILE;
								break;
							case "hourly":
								$item['minute'] = "0";
								$item['hour'] = "*";
								$item['mday'] = "*";
								$item['month'] = "*";
								$item['wday'] = "*";
								$item['who'] = "root";
								$item['command'] = CRON_PPPOE_CMD_FILE;
								break;
						} // end switch
					} // end if
				if (isset($itemhash['ID'])) {
					$config['cron']['item'][$itemhash['ID']] = $item;
				} else {
					$config['cron']['item'][] = $item;
				}
			} // end if
		} else if ($_POST['type'] == "pptp") {
			$wancfg['ipaddr'] = "pptp";
			$wancfg['pptp_username'] = $_POST['pptp_username'];
			$wancfg['pptp_password'] = $_POST['pptp_password'];
			$wancfg['local'] = $_POST['pptp_local'];
			$wancfg['subnet'] = $_POST['pptp_subnet'];
			$wancfg['remote'] = $_POST['pptp_remote'];
			$wancfg['ondemand'] = $_POST['pptp_dialondemand'] ? true : false;
			$wancfg['timeout'] = $_POST['pptp_idletimeout'];
		}
    
		/* reset cron items if necessary */
		if (empty($_POST['pppoe_preset'])) {
			/* test whether a cron item exists and unset() it if necessary */
			$itemhash = getMPDCRONSettings();
			$item = $itemhash['ITEM'];
			if (isset($item))
				unset($config['cron']['item'][$itemhash['ID']]); 
		}

		if($_POST['blockpriv'] == "yes")
			$wancfg['blockpriv'] = true;
		else
			unset($wancfg['blockpriv']);

		if($_POST['blockbogons'] == "yes")
			$wancfg['blockbogons'] = true;
		else
			unset($wancfg['blockbogons']);

		$wancfg['spoofmac'] = $_POST['spoofmac'];
		$wancfg['mtu'] = $_POST['mtu'];

		if (isset($wancfg['wireless'])) {
			if (!is_array($wancfg['wireless']))
				$wancfg['wireless'] = array();
			$wancfg['wireless']['standard'] = $_POST['standard'];
			$wancfg['wireless']['mode'] = $_POST['mode'];
			$wancfg['wireless']['protmode'] = $_POST['protmode'];
			$wancfg['wireless']['ssid'] = $_POST['ssid'];
			$wancfg['wireless']['channel'] = $_POST['channel'];
			$wancfg['wireless']['authmode'] = $_POST['authmode'];
			$wancfg['wireless']['txpower'] = $_POST['txpower'];
			$wancfg['wireless']['distance'] = $_POST['distance'];
			if (!is_array($wancfg['wireless']['wpa']))
				$wancfg['wireless']['wpa'] = array();
			$wancfg['wireless']['wpa']['macaddr_acl'] = $_POST['macaddr_acl'];
			$wancfg['wireless']['wpa']['auth_algs'] = $_POST['auth_algs'];
			$wancfg['wireless']['wpa']['wpa_mode'] = $_POST['wpa_mode'];
			$wancfg['wireless']['wpa']['wpa_key_mgmt'] = $_POST['wpa_key_mgmt'];
			$wancfg['wireless']['wpa']['wpa_pairwise'] = $_POST['wpa_pairwise'];
			$wancfg['wireless']['wpa']['wpa_group_rekey'] = $_POST['wpa_group_rekey'];
			$wancfg['wireless']['wpa']['wpa_gmk_rekey'] = $_POST['wpa_gmk_rekey'];
			$wancfg['wireless']['wpa']['passphrase'] = $_POST['passphrase'];
			$wancfg['wireless']['wpa']['ext_wpa_sw'] = $_POST['ext_wpa_sw'];

			if ($_POST['hidessid_enable'] == "yes")
				$wancfg['wireless']['hidessid']['enable'] = true;
			else if (isset($wancfg['wireless']['hidessid']['enable']))
				unset($wancfg['wireless']['hidessid']['enable']);

			if ($_POST['mac_acl_enable'] == "yes")
				$wancfg['wireless']['wpa']['mac_acl_enable'] = true;
			else if (isset($wancfg['wireless']['wpa']['mac_acl_enable']))
				unset($wancfg['wireless']['wpa']['mac_acl_enable']);

			if ($_POST['ieee8021x'] == "yes")
				$wancfg['wireless']['wpa']['ieee8021x']['enable'] = true;
			else if (isset($wancfg['wireless']['wpa']['ieee8021x']['enable']))
				unset($wancfg['wireless']['wpa']['ieee8021x']['enable']);

			if ($_POST['wpa_strict_rekey'] == "yes")
				$wancfg['wireless']['wpa']['wpa_strict_rekey'] = true;
			else if (isset($wancfg['wireless']['wpa']['wpa_strict_rekey']))
				unset($wancfg['wireless']['wpa']['wpa_strict_rekey']);

			if ($_POST['debug_mode'] == "yes")
				$wancfg['wireless']['wpa']['debug_mode'] = true;
			else if (isset($wancfg['wireless']['wpa']['debug_mode']))
				unset($wancfg['wireless']['wpa']['debug_mode']);

			if ($_POST['wpa_enable'] == "yes")
				$wancfg['wireless']['wpa']['enable'] = $_POST['wpa_enable'] = true;
			else if (isset($wancfg['wireless']['wpa']['enable']))
				unset($wancfg['wireless']['wpa']['enable']);

			if ($_POST['wep_enable'] == "yes") {
				if (!is_array($wancfg['wireless']['wep']))
                        		$wancfg['wireless']['wep'] = array();
				$wancfg['wireless']['wep']['enable'] = $_POST['wep_enable'] = true;
			} else if (isset($wancfg['wireless']['wep']))
				unset($wancfg['wireless']['wep']);

			if ($_POST['wme_enable'] == "yes") {
				if (!is_array($wancfg['wireless']['wme']))
                        		$wancfg['wireless']['wme'] = array();
				$wancfg['wireless']['wme']['enable'] = $_POST['wme_enable'] = true;
			} else if (isset($wancfg['wireless']['wme']['enable']))
				unset($wancfg['wireless']['wme']['enable']);

			if ($_POST['pureg_enable'] == "yes") {
				if (!is_array($wancfg['wireless']['pureg']))
                        		$wancfg['wireless']['pureg'] = array();
				$wancfg['wireless']['pureg']['enable'] = $_POST['pureg_enable'] = true;
			} else if (isset($wancfg['wireless']['pureg']['enable']))
				unset($wancfg['wireless']['pureg']['enable']);

			if ($_POST['apbridge_enable'] == "yes") {
				if (!is_array($wancfg['wireless']['apbridge']))
                        		$wancfg['wireless']['apbridge'] = array();
				$wancfg['wireless']['apbridge']['enable'] = $_POST['apbridge_enable'] = true;
			} else if (isset($wancfg['wireless']['apbridge']['enable']))
				unset($wancfg['wireless']['apbridge']['enable']);

			if ($_POST['standard'] == "11a Turbo") {
				if (!is_array($wancfg['wireless']['turbo']))
                        		$wancfg['wireless']['turbo'] = array();
				$wancfg['wireless']['turbo']['enable'] = true;
			} else if (isset($wancfg['wireless']['turbo']['enable']))
				unset($wancfg['wireless']['turbo']['enable']);

			$wancfg['wireless']['wep']['key'] = array();

			for ($i = 1; $i <= 4; $i++) {
				if ($_POST['key' . $i]) {
					$newkey = array();
					$newkey['value'] = $_POST['key' . $i];
					if ($_POST['txkey'] == $i)
						$newkey['txkey'] = true;
					$wancfg['wireless']['wep']['key'][] = $newkey;
				}
			}
		}

		write_config();
	
		/* finally install the pppoerestart file */
		if (isset($_POST['pppoe_preset'])) {
			config_lock();
			conf_mount_rw();
      
			if (! file_exists(CRON_PPPOE_CMD_FILE)) {
				file_put_contents(CRON_PPPOE_CMD_FILE, CRON_PPPOE_CMD);
				chmod(CRON_PPPOE_CMD_FILE, 0700);
			}
      
			/* regenerate cron settings/crontab file */
			configure_cron();
			sigkillbypid("{$g['varrun_path']}/cron.pid", "HUP");
      
			conf_mount_ro();
			config_unlock();
		}

		touch($d_landirty_path);
		header("Location: interfaces.php?if={$if}");
		exit;
	} 
	} else {
		unset($wancfg['enable']);
		interface_bring_down($if);
		write_config("Interface {$_POST['descr']}({$if}) is now disabled.");
		touch($d_landirty_path);
                header("Location: interfaces.php?if={$if}");
                exit;
	}
}

$pgtitle = array("Interfaces", $pconfig['descr']);
$closehead = false;
include("head.inc");

        $types = array("none" => "None", "static" => "Static", "dhcp" => "DHCP", "pppoe" => "PPPoE", "pptp" => "PPTP" /* , "carpdev-dhcp" => "CarpDev"*/); 
?>

<script type="text/javascript" src="/javascript/numericupdown/js/numericupdown.js"></script>
<link href="/javascript/numericupdown/css/numericupdown.css" rel="stylesheet" type="text/css" />

<script type="text/javascript" src="/javascript/datepicker/js/datepicker.js"></script>
<link href="/javascript/datepicker/css/datepicker.css" rel="stylesheet" type="text/css" />

<script type="text/javascript" src="/javascript/scriptaculous/prototype.js"></script>
<script type="text/javascript" src="/javascript/scriptaculous/scriptaculous.js"></script>

<script type="text/javascript">
<!--

function updateType(t){
        switch(t) {
<?php
        /* OK, so this is sick using php to generate javascript, but it needed to be done */
        foreach ($types as $key => $val) {
                echo "          case \"{$key}\": {\n";
                $t = $types;
                foreach ($t as $k => $v) {
                        if ($k != $key) {
                                echo "                  $('{$k}').hide();\n";
                        }
                }
                echo "          }\n";
        }
?>
        }
        $(t).appear();
}

function show_allcfg(obj) {
	if (obj.checked)
		$('allcfg').appear();
	else
		$('allcfg').hide();
}

function show_mon_config() {
	document.getElementById("showmonbox").innerHTML='';
	aodiv = document.getElementById('showmon');
	aodiv.style.display = "block";
}

function openwindow(url) {
	var oWin = window.open(url,"pfSensePop","width=620,height=400,top=150,left=150");

	if (oWin==null || typeof(oWin)=="undefined") 
		return false;
	else 
		return true;
}

//-->
</script>
</head>
<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<?php include("fbegin.inc"); ?>
            <form action="interfaces.php" method="post" name="iform" id="iform">
<?php if ($input_errors) print_input_errors($input_errors); ?>
<?php if (file_exists($d_landirty_path)): ?><p>
<?php print_info_box_np(gettext("The {$wancfg['descr']} configuration has been changed.<p>You must apply the changes in order for them to take effect.<p>Don't forget to adjust the DHCP Server range if needed before applying."));?><br />
<?php endif; ?>
<?php if ($savemsg) print_info_box($savemsg); ?>
              <table width="100%" border="0" cellpadding="6" cellspacing="0">
                <tr>
                  <td colspan="2" valign="top" class="listtopic">General configuration</td>
                </tr>
<?php if ($if != "wan" && $if != "lan"): ?>
                <tr>
                  <td width="22%" valign="top" class="vtable">&nbsp;</td>
                  <td width="78%" class="vtable">
                        <input name="enable" type="checkbox" value="yes" <?php if ($pconfig['enable'] == true) echo "checked"; ?> onClick="show_allcfg(this);">
                    <strong>Enable Interface</strong></td>
                </tr>
<?php endif; ?>
		<tr style="display:none;" name="allcfg" id="allcfg">
		<td colspan="2"> 
		<table width="100%" border="0" cellpadding="6" cellspacing="0">
                <tr>
                  <td width="22%" valign="top" class="vncell">Description</td>
                  <td width="78%" class="vtable">
                    <input name="descr" type="text" class="formfld unknown" id="descr" size="30" value="<?=htmlspecialchars($pconfig['descr']);?>">
                                        <br> <span class="vexpl">Enter a description (name) for the interface here.</span>
                  </td>
                </tr>
                <tr>
                  <td valign="middle" class="vncell"><strong>Type</strong></td>
                  <td class="vtable"> <select name="type" onChange="updateType(this.value);" class="formselect" id="type">
                      <?php 
			foreach ($types as $key => $opt) { 
	                      echo "<option onClick=\"updateType('{$key}');\"";
			      if ($key == $pconfig['type']) 
				echo " selected";
			      echo " value=\"{$key}\" >" . htmlspecialchars($opt);
	                      echo "</option>";
                      } ?>
                    </select></td>
                </tr>
                <tr>
                  <td valign="top" class="vncell">MAC address</td>
                  <td class="vtable"> <input name="spoofmac" type="text" class="formfld unknown" id="spoofmac" size="30" value="<?=htmlspecialchars($pconfig['spoofmac']);?>">
		    <?php
			$ip = getenv('REMOTE_ADDR');
			$mac = `/usr/sbin/arp -an | grep {$ip} | cut -d" " -f4`;
			$mac = str_replace("\n","",$mac);
		    ?>
		    <a OnClick="document.forms[0].spoofmac.value='<?=$mac?>';" href="#">Copy my MAC address</a>
		    <br>
                    This field can be used to modify (&quot;spoof&quot;) the MAC
                    address of the WAN interface<br>
                    (may be required with some cable connections)<br>
                    Enter a MAC address in the following format: xx:xx:xx:xx:xx:xx
                    or leave blank</td>
                </tr>
                <tr>
                  <td valign="top" class="vncell">MTU</td>
                  <td class="vtable"> <input name="mtu" type="text" class="formfld unknown" id="mtu" size="8" value="<?=htmlspecialchars($pconfig['mtu']);?>">
                    <br>
                    If you enter a value in this field, then MSS clamping for
                    TCP connections to the value entered above minus 40 (TCP/IP
                    header size) will be in effect. If you leave this field blank,
                    an MTU of 1492 bytes for PPPoE and 1500 bytes for all other
                    connection types will be assumed.</td>
                </tr>
		<tr style="display:none;" name="none" id="none">
		</tr>
		<tr style="display:none;" name="static" id="static">
		<td colspan="2">
        <table width="100%" border="0" cellpadding="6" cellspacing="0">
		<tr>
                  <td colspan="2" valign="top" class="listtopic">Static IP configuration</td>
                </tr>
                <tr>
                  <td width="22%" valign="top" class="vncellreq">IP address</td>
                  <td width="78%" class="vtable"> <input name="ipaddr" type="text" class="formfld unknown" id="ipaddr" size="20" value="<?=htmlspecialchars($pconfig['ipaddr']);?>">
                    /
                    <select name="subnet" class="formselect" id="subnet">
			<?php
			for ($i = 32; $i > 0; $i--) {
				if($i <> 31) {
					echo "<option value=\"{$i}\" ";
					if ($i == $pconfig['subnet']) echo "selected";
					echo ">" . $i . "</option>";
				}
			}
			?>
                    </select></td>
                </tr><?php if (isset($wancfg['ispointtopoint'])): ?>
                <tr>
                  <td width="22%" valign="top" class="vncellreq">Point-to-point IP address </td>
                  <td width"78%" class="vtable">
                    <input name="pointtopoint" type="text" class="formfld unknown" id="pointtopoint" size="20" value="<?=htmlspecialchars($pconfig['pointtopoint']);?>">
                  </td>
                </tr><?php endif; ?>
                <tr>
                  <td width="22%" valign="top" class="vncellreq">Gateway</td>
                  <td width="78%" class="vtable"><select name="gateway" class="formselect" id="gateway">
					<option value="none" selected>None</option>
			<?php
			if(count($a_gateways) > 0) {
				foreach ($a_gateways as $gateway) {
					if($gateway['interface'] == $if) {
			?>
					<option value="<?=$gateway['name'];?>" <?php if ($gateway['name'] == $pconfig['gateway']) echo "selected"; ?>>
					<?=htmlspecialchars($gateway['name']);?>
					</option>
			<?php
					}
				}
			}
			?>
			</select>Select a existing Gateway from the list or add one on the <a href="/system_gateways.php">Gateways</a> page<br>
                  </td>
                </tr>
	</table>
	</td>
	</tr>
		<tr style="display:none;" name="dhcp" id="dhcp">
		<td colspan="2">
        <table width="100%" border="0" cellpadding="6" cellspacing="0">
                <tr>
                  <td colspan="2" valign="top" class="listtopic">DHCP client configuration</td>
                </tr>
                <tr>
                  <td width="22%" valign="top" class="vncell">Hostname</td>
                  <td width="78%" class="vtable"> <input name="dhcphostname" type="text" class="formfld unknown" id="dhcphostname" size="40" value="<?=htmlspecialchars($pconfig['dhcphostname']);?>">
                    <br>
                    The value in this field is sent as the DHCP client identifier
                    and hostname when requesting a DHCP lease. Some ISPs may require
                    this (for client identification).</td><commit_msg>Make text consistent and wrap to next line<commit_after><?php
/* $Id$ */
/*
	interfaces.php
	Copyright (C) 2007 <NAME>
	Copyright (C) 2008 <NAME>
	All rights reserved.

	originally part of m0n0wall (http://m0n0.ch/wall)
	Copyright (C) 2003-2004 <NAME> <<EMAIL>>.
	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.
*/

##|+PRIV
##|*IDENT=page-interfaces
##|*NAME=Interfaces: WAN page
##|*DESCR=Allow access to the 'Interfaces' page.
##|*MATCH=interfaces.php*
##|-PRIV

if ($_REQUEST['if'])
	$if = $_REQUEST['if'];
else
	$if = "wan";

define("CRON_MONTHLY_PATTERN", "0 0 1 * *");
define("CRON_WEEKLY_PATTERN", "0 0 * * 0");
define("CRON_DAILY_PATTERN", "0 0 * * *");
define("CRON_HOURLY_PATTERN", "0 * * * *");
define("CRON_PPPOE_CMD_FILE", "/etc/pppoerestart");
define("CRON_PPPOE_CMD", "#!/bin/sh\necho '<?php require(\"interfaces.inc\"); interfaces_wan_pppoe_restart($if); services_dyndns_reset($if); ?>' | /usr/local/bin/php -q");

function getMPDCRONSettings() {
  global $config;

  if (is_array($config['cron']['item'])) {
    for ($i = 0; $i < count($config['cron']['item']); $i++) {
      $item = $config['cron']['item'][$i];

      if (strpos($item['command'], CRON_PPPOE_CMD_FILE) !== false) {
        return array("ID" => $i, "ITEM" => $item);
      }
    }
  }

  return NULL;
}

function getMPDResetTimeFromConfig() {
  $itemhash = getMPDCRONSettings();
  $cronitem = $itemhash['ITEM'];

  if (isset($cronitem)) {

    return "{$cronitem['minute']} {$cronitem['hour']} {$cronitem['mday']} {$cronitem['month']} {$cronitem['wday']}";
  } else {
    return NULL;
  }
}

function remove_bad_chars($string) {
        return preg_replace('/[^a-z|_|0-9]/i','',$string);
}

require("guiconfig.inc");

if (!is_array($config['gateways']['gateway_item']))
	$config['gateways']['gateway_item'] = array();
$a_gateways = &$config['gateways']['gateway_item'];

$wancfg = &$config['interfaces'][$if];

$pconfig['pppoe_username'] = $wancfg['pppoe_username'];
$pconfig['pppoe_password'] = $wancfg['<PASSWORD>'];
$pconfig['provider'] = $wancfg['provider'];
$pconfig['pppoe_dialondemand'] = isset($wancfg['ondemand']);
$pconfig['pppoe_idletimeout'] = $wancfg['timeout'];

/* ================================================ */
/* = force a connection reset at a specific time? = */
/* ================================================ */

if (isset($wancfg['pppoe']['pppoe-reset-type'])) {
  $resetTime = getMPDResetTimeFromConfig();  
  $pconfig['pppoe_preset'] = true;
  
  if ($wancfg['pppoe']['pppoe-reset-type'] == "custom") {
    $resetTime_a = split(" ", $resetTime);
    $pconfig['pppoe_pr_custom'] = true;
    $pconfig['pppoe_resetminute'] = $resetTime_a[0];
    $pconfig['pppoe_resethour'] = $resetTime_a[1];

    /* just initialize $pconfig['pppoe_resetdate'] if the
     * coresponding item contains appropriate numeric values.
     */
    if ($resetTime_a[2] <> "*" && $resetTime_a[3] <> "*") {
      $pconfig['pppoe_resetdate'] = "{$resetTime_a[3]}/{$resetTime_a[2]}/" . date("Y");
    }
  } else if ($wancfg['pppoe']['pppoe-reset-type'] == "preset") {
    $pconfig['pppoe_pr_preset'] = true;
    
    switch ($resetTime) {
      case CRON_MONTHLY_PATTERN:
        $pconfig['pppoe_monthly'] = true;
        break;
      case CRON_WEEKLY_PATTERN:
        $pconfig['pppoe_weekly'] = true;
        break;
      case CRON_DAILY_PATTERN:
        $pconfig['pppoe_daily'] = true;
        break;
      case CRON_HOURLY_PATTERN:
        $pconfig['pppoe_hourly'] = true;
        break;
    }
  }
}

$pconfig['pptp_username'] = $wancfg['pptp_username'];
$pconfig['pptp_password'] = $wancfg['pptp_password'];
$pconfig['pptp_local'] = $wancfg['local'];
$pconfig['pptp_subnet'] = $wancfg['subnet'];
$pconfig['pptp_remote'] = $wancfg['remote'];
$pconfig['pptp_dialondemand'] = isset($wancfg['ondemand']);
$pconfig['pptp_idletimeout'] = $wancfg['timeout'];

$pconfig['disableftpproxy'] = isset($wancfg['disableftpproxy']);

$pconfig['dhcphostname'] = $wancfg['dhcphostname'];
$pconfig['alias-address'] = $wancfg['alias-address'];
$pconfig['alias-subnet'] = $wancfg['alias-subnet'];

// Populate page descr if it does not exist.
if($if == "wan" && !$wancfg['descr'])
        $wancfg['descr'] = "WAN";
else if ($if == "lan" && !$wancfg['descr'])
        $wancfg['descr'] = "LAN";
$pconfig['descr'] = remove_bad_chars($wancfg['descr']);

if ($if == "wan" || $if == "lan")
	$pconfig['enable'] = true;
else
	$pconfig['enable'] = isset($wancfg['enable']);

if (is_array($config['aliases']['alias']))
foreach($config['aliases']['alias'] as $alias)
        if($alias['name'] == $wancfg['descr'])
                $input_errors[] = gettext("Sorry, an alias with the name {$wancfg['descr']} a
lready exists.");

if ($wancfg['ipaddr'] == "dhcp") {
	$pconfig['type'] = "dhcp";
} else if ($wancfg['ipaddr'] == "carpdev-dhcp") {
	$pconfig['type'] = "carpdev-dhcp";
	$pconfig['ipaddr'] = "";	    
} else if ($wancfg['ipaddr'] == "pppoe") {
	$pconfig['type'] = "pppoe";
} else if ($wancfg['ipaddr'] == "pptp") {
	$pconfig['type'] = "pptp";
} else if ($wancfg['ipaddr'] != "") {
	$pconfig['type'] = "static";
	$pconfig['ipaddr'] = $wancfg['ipaddr'];
	$pconfig['subnet'] = $wancfg['subnet'];
	$pconfig['gateway'] = $wancfg['gateway'];
	$pconfig['pointtopoint'] = $wancfg['pointtopoint'];
} else
	$pconfig['type'] = "none";

$pconfig['blockpriv'] = isset($wancfg['blockpriv']);
$pconfig['blockbogons'] = isset($wancfg['blockbogons']);
$pconfig['spoofmac'] = $wancfg['spoofmac'];
$pconfig['mtu'] = $wancfg['mtu'];

/* Wireless interface? */
if (isset($wancfg['wireless'])) {
	/* Get wireless modes */
	$curif = convert_friendly_interface_to_real_interface_name($if);
	$wl_modes = get_wireless_modes($curif);
	
	$pconfig['standard'] = $wancfg['wireless']['standard'];
	$pconfig['mode'] = $wancfg['wireless']['mode'];
	$pconfig['protmode'] = $wancfg['wireless']['protmode'];
	$pconfig['ssid'] = $wancfg['wireless']['ssid'];
	$pconfig['channel'] = $wancfg['wireless']['channel'];
	$pconfig['txpower'] = $wancfg['wireless']['txpower'];
	$pconfig['distance'] = $wancfg['wireless']['distance'];
	$pconfig['wme_enable'] = isset($wancfg['wireless']['wme']['enable']);
	$pconfig['pureg_enable'] = isset($wancfg['wireless']['pureg']['enable']);
	$pconfig['apbridge_enable'] = isset($wancfg['wireless']['apbridge']['enable']);
	$pconfig['authmode'] = $wancfg['wireless']['authmode'];
	$pconfig['hidessid_enable'] = isset($wancfg['wireless']['hidessid']['enable']);
	if (is_array($wancfg['wireless']['wpa'])) {
		$pconfig['debug_mode'] = $wancfg['wireless']['wpa']['debug_mode'];
		$pconfig['macaddr_acl'] = $wancfg['wireless']['wpa']['macaddr_acl'];
		$pconfig['mac_acl_enable'] = isset($wancfg['wireless']['wpa']['mac_acl_enable']);
		$pconfig['auth_algs'] = $wancfg['wireless']['wpa']['auth_algs'];
		$pconfig['wpa_mode'] = $wancfg['wireless']['wpa']['wpa_mode'];
		$pconfig['wpa_key_mgmt'] = $wancfg['wireless']['wpa']['wpa_key_mgmt'];
		$pconfig['wpa_pairwise'] = $wancfg['wireless']['wpa']['wpa_pairwise'];
		$pconfig['wpa_group_rekey'] = $wancfg['wireless']['wpa']['wpa_group_rekey'];
		$pconfig['wpa_gmk_rekey'] = $wancfg['wireless']['wpa']['wpa_gmk_rekey'];
		$pconfig['wpa_strict_rekey'] = isset($wancfg['wireless']['wpa']['wpa_strict_rekey']);
		$pconfig['passphrase'] = $wancfg['wireless']['wpa']['passphrase'];
		$pconfig['ieee8021x'] = isset($wancfg['wireless']['wpa']['ieee8021x']['enable']);
		$pconfig['ext_wpa_sw'] = $wancfg['wireless']['wpa']['ext_wpa_sw'];
		$pconfig['wpa_enable'] = isset($wancfg['wireless']['wpa']['enable']);
	}
	$pconfig['wep_enable'] = isset($wancfg['wireless']['wep']['enable']);
	$pconfig['mac_acl'] = $wancfg['wireless']['mac_acl'];

	if (is_array($wancfg['wireless']['wep']) &&
		is_array($wancfg['wireless']['wep']['key'])) {
		$i = 1;
		foreach ($wancfg['wireless']['wep']['key'] as $wepkey) {
			$pconfig['key' . $i] = $wepkey['value'];
			if (isset($wepkey['txkey']))
				$pconfig['txkey'] = $i;
			$i++;
		}
		if (!isset($wepkey['txkey']))
			$pconfig['txkey'] = 1;
	}
}

if ($_POST['apply']) {

	unset($input_errors);
	if (!file_exists($d_landirty_path))
		$intput_errors[] = "You have already applied your settings!";
	else {	
               	unlink_if_exists("{$g['tmp_path']}/config.cache");
		unlink_if_exists("{$d_landirty_path}");

		/* ermal -- do not think these are needed at all.
                ob_flush();
                flush();
                sleep(1);
		*/

                interface_configure($if);

		system_start_ftp_helpers();

                reset_carp();

		if ($if == "lan") {
			/* restart snmp so that it binds to correct address */
			services_snmpd_configure();
			$savemsg = "The changes have been applied.  You may need to correct your web browser's IP address.";
		} 

                /* sync filter configuration */
		config_lock();
                filter_configure();
		config_unlock();

                /* set up static routes */
                system_routing_configure();
	}
	header("Location: interfaces.php?if={$if}");
	exit;
} else if ($_POST) {

	unset($input_errors);
	$pconfig = $_POST;
  
	/* filter out spaces from descriptions  */
        $_POST['descr'] = remove_bad_chars($_POST['descr']);

	/* okay first of all, cause we are just hidding the PPPoE HTML
         * fields releated to PPPoE resets, we are going to unset $_POST
         * vars, if the reset feature should not be used. Otherwise the
         * data validation procedure below, may trigger a false error
         * message.
         */        
	if (empty($_POST['pppoe_preset'])) {
                unset($_POST['pppoe_pr_type']);                
		unset($_POST['pppoe_resethour']);
                unset($_POST['pppoe_resetminute']);
                unset($_POST['pppoe_resetdate']);
                unset($_POST['pppoe_pr_preset_val']);                
		unlink_if_exists(CRON_PPPOE_CMD_FILE);
        }

	if ($_POST['enable'] == "yes" || $if == "wan" || $if == "lan") {
		/* optional interface if list */
                $iflist = get_configured_interface_with_descr();

                /* description unique? */
                foreach ($iflist as $ifent => $ifdescr) {
                        if ($if != $ifent && $ifdescr == $_POST['descr'])
                                $input_errors[] = "An interface with the specified description already exists.";

                }

	/* input validation */
	if ($_POST['type'] == "static") {
		$reqdfields = explode(" ", "ipaddr subnet gateway");
		$reqdfieldsn = explode(",", "IP address,Subnet bit count,Gateway");
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
	} else if ($_POST['type'] == "PPPoE") {
		if ($_POST['pppoe_dialondemand']) {
			$reqdfields = explode(" ", "pppoe_username pppoe_password pppoe_dialondemand pppoe_idletimeout");
			$reqdfieldsn = explode(",", "PPPoE username,PPPoE password,Dial on demand,Idle timeout value");
		} else {
			$reqdfields = explode(" ", "pppoe_username pppoe_password");
			$reqdfieldsn = explode(",", "PPPoE username,PPPoE password");
		}
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
	} else if ($_POST['type'] == "PPTP") {
		if ($_POST['pptp_dialondemand']) {
			$reqdfields = explode(" ", "pptp_username pptp_password pptp_local pptp_subnet pptp_remote pptp_dialondemand pptp_idletimeout");
			$reqdfieldsn = explode(",", "PPTP username,PPTP password,PPTP local IP address,PPTP subnet,PPTP remote IP address,Dial on demand,Idle timeout value");
		} else {
			$reqdfields = explode(" ", "pptp_username pptp_password pptp_local pptp_subnet pptp_remote");
			$reqdfieldsn = explode(",", "PPTP username,PPTP password,PPTP local IP address,PPTP subnet,PPTP remote IP address");
		}
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
	}

	/* normalize MAC addresses - lowercase and convert Windows-ized hyphenated MACs to colon delimited */
	$_POST['spoofmac'] = strtolower(str_replace("-", ":", $_POST['spoofmac']));

	if (($_POST['ipaddr'] && !is_ipaddr($_POST['ipaddr']))) {
		$input_errors[] = "A valid IP address must be specified.";
	}
	if (($_POST['subnet'] && !is_numeric($_POST['subnet']))) {
		$input_errors[] = "A valid subnet bit count must be specified.";
	}
	if (($_POST['alias-address'] && !is_ipaddr($_POST['alias-address']))) {
		$input_errors[] = "A valid alias IP address must be specified.";
	}
	if (($_POST['alias-subnet'] && !is_numeric($_POST['alias-subnet']))) {
		$input_errors[] = "A valid alias subnet bit count must be specified.";
	}
	if ($_POST['gateway'] != "none") {
		$match = false;
		foreach($a_gateways as $gateway) {
			if(in_array($_POST['gateway'], $gateway)) {
				$match = true;
			}
		}
		if(!$match)
			$input_errors[] = "A valid gateway must be specified.";
	}
	if (($_POST['pointtopoint'] && !is_ipaddr($_POST['pointtopoint']))) {
		$input_errors[] = "A valid point-to-point IP address must be specified.";
	}
	if (($_POST['provider'] && !is_domain($_POST['provider']))) {
		$input_errors[] = "The service name contains invalid characters.";
	}
	if (($_POST['pppoe_idletimeout'] != "") && !is_numericint($_POST['pppoe_idletimeout'])) {
		$input_errors[] = "The idle timeout value must be an integer.";
	}
	if ($_POST['pppoe_resethour'] <> "" && !is_numericint($_POST['pppoe_resethour']) && 
		$_POST['pppoe_resethour'] >= 0 && $_POST['pppoe_resethour'] <=23) {
		$input_errors[] = gettext("A valid PPPoE reset hour must be specified (0-23).");
	}
	if ($_POST['pppoe_resetminute'] <> "" && !is_numericint($_POST['pppoe_resetminute']) && 
		$_POST['pppoe_resetminute'] >= 0 && $_POST['pppoe_resetminute'] <=59) {
		$input_errors[] = gettext("A valid PPPoE reset minute must be specified (0-59).");
	}
	if ($_POST['pppoe_resetdate'] <> "" && !is_numeric(str_replace("/", "", $_POST['pppoe_resetdate']))) {
		$input_errors[] = gettext("A valid PPPoE reset date must be specified (mm/dd/yyyy).");
	}
	if (($_POST['pptp_local'] && !is_ipaddr($_POST['pptp_local']))) {
		$input_errors[] = "A valid PPTP local IP address must be specified.";
	}
	if (($_POST['pptp_subnet'] && !is_numeric($_POST['pptp_subnet']))) {
		$input_errors[] = "A valid PPTP subnet bit count must be specified.";
	}
	if (($_POST['pptp_remote'] && !is_ipaddr($_POST['pptp_remote']))) {
		$input_errors[] = "A valid PPTP remote IP address must be specified.";
	}
	if (($_POST['pptp_idletimeout'] != "") && !is_numericint($_POST['pptp_idletimeout'])) {
		$input_errors[] = "The idle timeout value must be an integer.";
	}
	if (($_POST['spoofmac'] && !is_macaddr($_POST['spoofmac']))) {
		$input_errors[] = "A valid MAC address must be specified.";
	}
	if ($_POST['mtu'] && ($_POST['mtu'] < 576)) {
		$input_errors[] = "The MTU must be greater than 576 bytes.";
	}

	/* Wireless interface? */
	if (isset($wancfg['wireless'])) {
		$reqdfields = explode(" ", "mode ssid");
		$reqdfieldsn = explode(",", "Mode,SSID");
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);

		/* loop through keys and enforce size */
		for ($i = 1; $i <= 4; $i++) {
			if ($_POST['key' . $i]) {
				/* 64 bit */
				if (strlen($_POST['key' . $i]) == 5)
					continue;
				if (strlen($_POST['key' . $i]) == 10) {
					/* hex key */
					if (stristr($_POST['key' . $i], "0x") == false) {
						$_POST['key' . $i] = "0x" . $_POST['key' . $i];
					}
					continue;
				}
				if (strlen($_POST['key' . $i]) == 12) {
					/* hex key */
					if(stristr($_POST['key' . $i], "0x") == false) {
					$_POST['key' . $i] = "0x" . $_POST['key' . $i];
					}
					continue;
				}
				/* 128 bit */
				if (strlen($_POST['key' . $i]) == 13)
					continue;
				if (strlen($_POST['key' . $i]) == 26) {
					/* hex key */
					if (stristr($_POST['key' . $i], "0x") == false)
						$_POST['key' . $i] = "0x" . $_POST['key' . $i];
					continue;
				}
				if(strlen($_POST['key' . $i]) == 28)
					continue;
				$input_errors[] =  "Invalid wep key size.   Sizes should be 40 (64) bit keys or 104 (128) bit.";
				break;
			}
		}
	}

	if (!$input_errors) {

		unset($wancfg['ipaddr']);
		unset($wancfg['subnet']);
		unset($wancfg['gateway']);
		unset($wancfg['pointtopoint']);
		unset($wancfg['dhcphostname']);
		unset($wancfg['pppoe_username']);
		unset($wancfg['pppoe_password']);
		unset($wancfg['pptp_username']);
		unset($wancfg['pptp_password']);
		unset($wancfg['provider']);
		unset($wancfg['ondemand']);
		unset($wancfg['timeout']);
		if ($wancfg['pppoe']['pppoe-reset-type'])
			unset($wancfg['pppoe']['pppoe-reset-type']);
		unset($wancfg['local']);
		unset($wancfg['subnet']);
		unset($wancfg['remote']);
		unset($wancfg['disableftpproxy']);

		/* per interface pftpx helper */
		if ($_POST['disableftpproxy'] == "yes")
			$wancfg['disableftpproxy'] = true;

		$wancfg['descr'] = remove_bad_chars($_POST['descr']);
		if ($if == "wan" || $if == "lan")
			$wancfg['enable'] = true;
		else
			$wancfg['enable'] =  $_POST['enable']  == "yes" ? true : false;

		if ($_POST['type'] == "static") {
			$wancfg['ipaddr'] = $_POST['ipaddr'];
			$wancfg['subnet'] = $_POST['subnet'];
			if ($_POST['gateway'] != "none")
				$wancfg['gateway'] = $_POST['gateway'];
			if (isset($wancfg['ispointtopoint']))
				$wancfg['pointtopoint'] = $_POST['pointtopoint'];
		} else if ($_POST['type'] == "dhcp") {
			$wancfg['ipaddr'] = "dhcp";
			$wancfg['dhcphostname'] = $_POST['dhcphostname'];
			$wancfg['alias-address'] = $_POST['alias-address'];
			$wancfg['alias-subnet'] = $_POST['alias-subnet'];
		} else if ($_POST['type'] == "carpdev-dhcp") {
			$wancfg['ipaddr'] = "carpdev-dhcp";
			$wancfg['dhcphostname'] = $_POST['dhcphostname'];
			$wancfg['alias-address'] = $_POST['alias-address'];
			$wancfg['alias-subnet'] = $_POST['alias-subnet'];			
		} else if ($_POST['type'] == "pppoe") {
			$wancfg['ipaddr'] = "pppoe";
			$wancfg['pppoe_username'] = $_POST['pppoe_username'];
			$wancfg['pppoe_password'] = $_POST['pppoe_password'];
			$wancfg['provider'] = $_POST['provider'];
			$wancfg['ondemand'] = $_POST['pppoe_dialondemand'] ? true : false;
			$wancfg['timeout'] = $_POST['pppoe_idletimeout'];
      
			/* perform a periodic reset? */
			if (isset($_POST['pppoe_preset'])) {
				if (! is_array($config['cron']['item'])) 
					$config['cron']['item'] = array(); 

					$itemhash = getMPDCRONSettings();
					$item = $itemhash['ITEM'];

					if (empty($item)) {
						$item = array();
					}

					if (isset($_POST['pppoe_pr_type']) && $_POST['pppoe_pr_type'] == "custom") {
						$wancfg['pppoe']['pppoe-reset-type'] = "custom";
						$pconfig['pppoe_pr_custom'] = true;

						$item['minute'] = $_POST['pppoe_resetminute'];
						$item['hour'] = $_POST['pppoe_resethour'];

						if (isset($_POST['pppoe_resetdate']) && 
							$_POST['pppoe_resetdate'] <> "" && 
							strlen($_POST['pppoe_resetdate']) == 10) {
							$date = explode("/", $_POST['pppoe_resetdate']);
							$item['mday'] = $date[1];
							$item['month'] = $date[0];
						} else {
							$item['mday'] = "*";
							$item['month'] = "*";
						}
						$item['wday'] = "*";
						$item['who'] = "root";
						$item['command'] = CRON_PPPOE_CMD_FILE;
					} else if (isset($_POST['pppoe_pr_type']) && $_POST['pppoe_pr_type'] = "preset") {
						$wancfg['pppoe']['pppoe-reset-type'] = "preset";
						$pconfig['pppoe_pr_preset'] = true;

						switch ($_POST['pppoe_pr_preset_val']) {
							case "monthly":
								$item['minute'] = "0";
								$item['hour'] = "0";
								$item['mday'] = "1";
								$item['month'] = "*";
								$item['wday'] = "*";
								$item['who'] = "root";
								$item['command'] = CRON_PPPOE_CMD_FILE;
								break;
					        	case "weekly":
								$item['minute'] = "0";
								$item['hour'] = "0";
								$item['mday'] = "*";
								$item['month'] = "*";
								$item['wday'] = "0";
								$item['who'] = "root";
								$item['command'] = CRON_PPPOE_CMD_FILE;
								break;
							case "daily":
								$item['minute'] = "0";
								$item['hour'] = "0";
								$item['mday'] = "*";
								$item['month'] = "*";
								$item['wday'] = "*";
								$item['who'] = "root";
								$item['command'] = CRON_PPPOE_CMD_FILE;
								break;
							case "hourly":
								$item['minute'] = "0";
								$item['hour'] = "*";
								$item['mday'] = "*";
								$item['month'] = "*";
								$item['wday'] = "*";
								$item['who'] = "root";
								$item['command'] = CRON_PPPOE_CMD_FILE;
								break;
						} // end switch
					} // end if
				if (isset($itemhash['ID'])) {
					$config['cron']['item'][$itemhash['ID']] = $item;
				} else {
					$config['cron']['item'][] = $item;
				}
			} // end if
		} else if ($_POST['type'] == "pptp") {
			$wancfg['ipaddr'] = "pptp";
			$wancfg['pptp_username'] = $_POST['pptp_username'];
			$wancfg['pptp_password'] = $_POST['pptp_password'];
			$wancfg['local'] = $_POST['pptp_local'];
			$wancfg['subnet'] = $_POST['pptp_subnet'];
			$wancfg['remote'] = $_POST['pptp_remote'];
			$wancfg['ondemand'] = $_POST['pptp_dialondemand'] ? true : false;
			$wancfg['timeout'] = $_POST['pptp_idletimeout'];
		}
    
		/* reset cron items if necessary */
		if (empty($_POST['pppoe_preset'])) {
			/* test whether a cron item exists and unset() it if necessary */
			$itemhash = getMPDCRONSettings();
			$item = $itemhash['ITEM'];
			if (isset($item))
				unset($config['cron']['item'][$itemhash['ID']]); 
		}

		if($_POST['blockpriv'] == "yes")
			$wancfg['blockpriv'] = true;
		else
			unset($wancfg['blockpriv']);

		if($_POST['blockbogons'] == "yes")
			$wancfg['blockbogons'] = true;
		else
			unset($wancfg['blockbogons']);

		$wancfg['spoofmac'] = $_POST['spoofmac'];
		$wancfg['mtu'] = $_POST['mtu'];

		if (isset($wancfg['wireless'])) {
			if (!is_array($wancfg['wireless']))
				$wancfg['wireless'] = array();
			$wancfg['wireless']['standard'] = $_POST['standard'];
			$wancfg['wireless']['mode'] = $_POST['mode'];
			$wancfg['wireless']['protmode'] = $_POST['protmode'];
			$wancfg['wireless']['ssid'] = $_POST['ssid'];
			$wancfg['wireless']['channel'] = $_POST['channel'];
			$wancfg['wireless']['authmode'] = $_POST['authmode'];
			$wancfg['wireless']['txpower'] = $_POST['txpower'];
			$wancfg['wireless']['distance'] = $_POST['distance'];
			if (!is_array($wancfg['wireless']['wpa']))
				$wancfg['wireless']['wpa'] = array();
			$wancfg['wireless']['wpa']['macaddr_acl'] = $_POST['macaddr_acl'];
			$wancfg['wireless']['wpa']['auth_algs'] = $_POST['auth_algs'];
			$wancfg['wireless']['wpa']['wpa_mode'] = $_POST['wpa_mode'];
			$wancfg['wireless']['wpa']['wpa_key_mgmt'] = $_POST['wpa_key_mgmt'];
			$wancfg['wireless']['wpa']['wpa_pairwise'] = $_POST['wpa_pairwise'];
			$wancfg['wireless']['wpa']['wpa_group_rekey'] = $_POST['wpa_group_rekey'];
			$wancfg['wireless']['wpa']['wpa_gmk_rekey'] = $_POST['wpa_gmk_rekey'];
			$wancfg['wireless']['wpa']['passphrase'] = $_POST['passphrase'];
			$wancfg['wireless']['wpa']['ext_wpa_sw'] = $_POST['ext_wpa_sw'];

			if ($_POST['hidessid_enable'] == "yes")
				$wancfg['wireless']['hidessid']['enable'] = true;
			else if (isset($wancfg['wireless']['hidessid']['enable']))
				unset($wancfg['wireless']['hidessid']['enable']);

			if ($_POST['mac_acl_enable'] == "yes")
				$wancfg['wireless']['wpa']['mac_acl_enable'] = true;
			else if (isset($wancfg['wireless']['wpa']['mac_acl_enable']))
				unset($wancfg['wireless']['wpa']['mac_acl_enable']);

			if ($_POST['ieee8021x'] == "yes")
				$wancfg['wireless']['wpa']['ieee8021x']['enable'] = true;
			else if (isset($wancfg['wireless']['wpa']['ieee8021x']['enable']))
				unset($wancfg['wireless']['wpa']['ieee8021x']['enable']);

			if ($_POST['wpa_strict_rekey'] == "yes")
				$wancfg['wireless']['wpa']['wpa_strict_rekey'] = true;
			else if (isset($wancfg['wireless']['wpa']['wpa_strict_rekey']))
				unset($wancfg['wireless']['wpa']['wpa_strict_rekey']);

			if ($_POST['debug_mode'] == "yes")
				$wancfg['wireless']['wpa']['debug_mode'] = true;
			else if (isset($wancfg['wireless']['wpa']['debug_mode']))
				unset($wancfg['wireless']['wpa']['debug_mode']);

			if ($_POST['wpa_enable'] == "yes")
				$wancfg['wireless']['wpa']['enable'] = $_POST['wpa_enable'] = true;
			else if (isset($wancfg['wireless']['wpa']['enable']))
				unset($wancfg['wireless']['wpa']['enable']);

			if ($_POST['wep_enable'] == "yes") {
				if (!is_array($wancfg['wireless']['wep']))
                        		$wancfg['wireless']['wep'] = array();
				$wancfg['wireless']['wep']['enable'] = $_POST['wep_enable'] = true;
			} else if (isset($wancfg['wireless']['wep']))
				unset($wancfg['wireless']['wep']);

			if ($_POST['wme_enable'] == "yes") {
				if (!is_array($wancfg['wireless']['wme']))
                        		$wancfg['wireless']['wme'] = array();
				$wancfg['wireless']['wme']['enable'] = $_POST['wme_enable'] = true;
			} else if (isset($wancfg['wireless']['wme']['enable']))
				unset($wancfg['wireless']['wme']['enable']);

			if ($_POST['pureg_enable'] == "yes") {
				if (!is_array($wancfg['wireless']['pureg']))
                        		$wancfg['wireless']['pureg'] = array();
				$wancfg['wireless']['pureg']['enable'] = $_POST['pureg_enable'] = true;
			} else if (isset($wancfg['wireless']['pureg']['enable']))
				unset($wancfg['wireless']['pureg']['enable']);

			if ($_POST['apbridge_enable'] == "yes") {
				if (!is_array($wancfg['wireless']['apbridge']))
                        		$wancfg['wireless']['apbridge'] = array();
				$wancfg['wireless']['apbridge']['enable'] = $_POST['apbridge_enable'] = true;
			} else if (isset($wancfg['wireless']['apbridge']['enable']))
				unset($wancfg['wireless']['apbridge']['enable']);

			if ($_POST['standard'] == "11a Turbo") {
				if (!is_array($wancfg['wireless']['turbo']))
                        		$wancfg['wireless']['turbo'] = array();
				$wancfg['wireless']['turbo']['enable'] = true;
			} else if (isset($wancfg['wireless']['turbo']['enable']))
				unset($wancfg['wireless']['turbo']['enable']);

			$wancfg['wireless']['wep']['key'] = array();

			for ($i = 1; $i <= 4; $i++) {
				if ($_POST['key' . $i]) {
					$newkey = array();
					$newkey['value'] = $_POST['key' . $i];
					if ($_POST['txkey'] == $i)
						$newkey['txkey'] = true;
					$wancfg['wireless']['wep']['key'][] = $newkey;
				}
			}
		}

		write_config();
	
		/* finally install the pppoerestart file */
		if (isset($_POST['pppoe_preset'])) {
			config_lock();
			conf_mount_rw();
      
			if (! file_exists(CRON_PPPOE_CMD_FILE)) {
				file_put_contents(CRON_PPPOE_CMD_FILE, CRON_PPPOE_CMD);
				chmod(CRON_PPPOE_CMD_FILE, 0700);
			}
      
			/* regenerate cron settings/crontab file */
			configure_cron();
			sigkillbypid("{$g['varrun_path']}/cron.pid", "HUP");
      
			conf_mount_ro();
			config_unlock();
		}

		touch($d_landirty_path);
		header("Location: interfaces.php?if={$if}");
		exit;
	} 
	} else {
		unset($wancfg['enable']);
		interface_bring_down($if);
		write_config("Interface {$_POST['descr']}({$if}) is now disabled.");
		touch($d_landirty_path);
                header("Location: interfaces.php?if={$if}");
                exit;
	}
}

$pgtitle = array("Interfaces", $pconfig['descr']);
$closehead = false;
include("head.inc");

        $types = array("none" => "None", "static" => "Static", "dhcp" => "DHCP", "pppoe" => "PPPoE", "pptp" => "PPTP" /* , "carpdev-dhcp" => "CarpDev"*/); 
?>

<script type="text/javascript" src="/javascript/numericupdown/js/numericupdown.js"></script>
<link href="/javascript/numericupdown/css/numericupdown.css" rel="stylesheet" type="text/css" />

<script type="text/javascript" src="/javascript/datepicker/js/datepicker.js"></script>
<link href="/javascript/datepicker/css/datepicker.css" rel="stylesheet" type="text/css" />

<script type="text/javascript" src="/javascript/scriptaculous/prototype.js"></script>
<script type="text/javascript" src="/javascript/scriptaculous/scriptaculous.js"></script>

<script type="text/javascript">
<!--

function updateType(t){
        switch(t) {
<?php
        /* OK, so this is sick using php to generate javascript, but it needed to be done */
        foreach ($types as $key => $val) {
                echo "          case \"{$key}\": {\n";
                $t = $types;
                foreach ($t as $k => $v) {
                        if ($k != $key) {
                                echo "                  $('{$k}').hide();\n";
                        }
                }
                echo "          }\n";
        }
?>
        }
        $(t).appear();
}

function show_allcfg(obj) {
	if (obj.checked)
		$('allcfg').appear();
	else
		$('allcfg').hide();
}

function show_mon_config() {
	document.getElementById("showmonbox").innerHTML='';
	aodiv = document.getElementById('showmon');
	aodiv.style.display = "block";
}

function openwindow(url) {
	var oWin = window.open(url,"pfSensePop","width=620,height=400,top=150,left=150");

	if (oWin==null || typeof(oWin)=="undefined") 
		return false;
	else 
		return true;
}

//-->
</script>
</head>
<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<?php include("fbegin.inc"); ?>
            <form action="interfaces.php" method="post" name="iform" id="iform">
<?php if ($input_errors) print_input_errors($input_errors); ?>
<?php if (file_exists($d_landirty_path)): ?><p>
<?php print_info_box_np(gettext("The {$wancfg['descr']} configuration has been changed.<p>You must apply the changes in order for them to take effect.<p>Don't forget to adjust the DHCP Server range if needed before applying."));?><br />
<?php endif; ?>
<?php if ($savemsg) print_info_box($savemsg); ?>
              <table width="100%" border="0" cellpadding="6" cellspacing="0">
                <tr>
                  <td colspan="2" valign="top" class="listtopic">General configuration</td>
                </tr>
<?php if ($if != "wan" && $if != "lan"): ?>
                <tr>
                  <td width="22%" valign="top" class="vtable">&nbsp;</td>
                  <td width="78%" class="vtable">
                        <input name="enable" type="checkbox" value="yes" <?php if ($pconfig['enable'] == true) echo "checked"; ?> onClick="show_allcfg(this);">
                    <strong>Enable Interface</strong></td>
                </tr>
<?php endif; ?>
		<tr style="display:none;" name="allcfg" id="allcfg">
		<td colspan="2"> 
		<table width="100%" border="0" cellpadding="6" cellspacing="0">
                <tr>
                  <td width="22%" valign="top" class="vncell">Description</td>
                  <td width="78%" class="vtable">
                    <input name="descr" type="text" class="formfld unknown" id="descr" size="30" value="<?=htmlspecialchars($pconfig['descr']);?>">
                                        <br> <span class="vexpl">Enter a description (name) for the interface here.</span>
                  </td>
                </tr>
                <tr>
                  <td valign="middle" class="vncell"><strong>Type</strong></td>
                  <td class="vtable"> <select name="type" onChange="updateType(this.value);" class="formselect" id="type">
                      <?php 
			foreach ($types as $key => $opt) { 
	                      echo "<option onClick=\"updateType('{$key}');\"";
			      if ($key == $pconfig['type']) 
				echo " selected";
			      echo " value=\"{$key}\" >" . htmlspecialchars($opt);
	                      echo "</option>";
                      } ?>
                    </select></td>
                </tr>
                <tr>
                  <td valign="top" class="vncell">MAC address</td>
                  <td class="vtable"> <input name="spoofmac" type="text" class="formfld unknown" id="spoofmac" size="30" value="<?=htmlspecialchars($pconfig['spoofmac']);?>">
		    <?php
			$ip = getenv('REMOTE_ADDR');
			$mac = `/usr/sbin/arp -an | grep {$ip} | cut -d" " -f4`;
			$mac = str_replace("\n","",$mac);
		    ?>
		    <a OnClick="document.forms[0].spoofmac.value='<?=$mac?>';" href="#">Copy my MAC address</a>
		    <br>
                    This field can be used to modify (&quot;spoof&quot;) the MAC
                    address of the WAN interface<br>
                    (may be required with some cable connections)<br>
                    Enter a MAC address in the following format: xx:xx:xx:xx:xx:xx
                    or leave blank</td>
                </tr>
                <tr>
                  <td valign="top" class="vncell">MTU</td>
                  <td class="vtable"> <input name="mtu" type="text" class="formfld unknown" id="mtu" size="8" value="<?=htmlspecialchars($pconfig['mtu']);?>">
                    <br>
                    If you enter a value in this field, then MSS clamping for
                    TCP connections to the value entered above minus 40 (TCP/IP
                    header size) will be in effect. If you leave this field blank,
                    an MTU of 1492 bytes for PPPoE and 1500 bytes for all other
                    connection types will be assumed.</td>
                </tr>
		<tr style="display:none;" name="none" id="none">
		</tr>
		<tr style="display:none;" name="static" id="static">
		<td colspan="2">
        <table width="100%" border="0" cellpadding="6" cellspacing="0">
		<tr>
                  <td colspan="2" valign="top" class="listtopic">Static IP configuration</td>
                </tr>
                <tr>
                  <td width="22%" valign="top" class="vncellreq">IP address</td>
                  <td width="78%" class="vtable"> <input name="ipaddr" type="text" class="formfld unknown" id="ipaddr" size="20" value="<?=htmlspecialchars($pconfig['ipaddr']);?>">
                    /
                    <select name="subnet" class="formselect" id="subnet">
			<?php
			for ($i = 32; $i > 0; $i--) {
				if($i <> 31) {
					echo "<option value=\"{$i}\" ";
					if ($i == $pconfig['subnet']) echo "selected";
					echo ">" . $i . "</option>";
				}
			}
			?>
                    </select></td>
                </tr><?php if (isset($wancfg['ispointtopoint'])): ?>
                <tr>
                  <td width="22%" valign="top" class="vncellreq">Point-to-point IP address </td>
                  <td width"78%" class="vtable">
                    <input name="pointtopoint" type="text" class="formfld unknown" id="pointtopoint" size="20" value="<?=htmlspecialchars($pconfig['pointtopoint']);?>">
                  </td>
                </tr><?php endif; ?>
                <tr>
                  <td width="22%" valign="top" class="vncellreq">Gateway</td>
                  <td width="78%" class="vtable"><select name="gateway" class="formselect" id="gateway">
					<option value="none" selected>None</option>
			<?php
			if(count($a_gateways) > 0) {
				foreach ($a_gateways as $gateway) {
					if($gateway['interface'] == $if) {
			?>
					<option value="<?=$gateway['name'];?>" <?php if ($gateway['name'] == $pconfig['gateway']) echo "selected"; ?>>
					<?=htmlspecialchars($gateway['name']);?>
					</option>
			<?php
					}
				}
			}
			?>
			</select>
			<br/>
			Select a existing Gateway from the list or add one on the <a href="/system_gateways.php">Gateways</a> page<br>
                  </td>
                </tr>
	</table>
	</td>
	</tr>
		<tr style="display:none;" name="dhcp" id="dhcp">
		<td colspan="2">
        <table width="100%" border="0" cellpadding="6" cellspacing="0">
                <tr>
                  <td colspan="2" valign="top" class="listtopic">DHCP client configuration</td>
                </tr>
                <tr>
                  <td width="22%" valign="top" class="vncell">Hostname</td>
                  <td width="78%" class="vtable"> <input name="dhcphostname" type="text" class="formfld unknown" id="dhcphostname" size="40" value="<?=htmlspecialchars($pconfig['dhcphostname']);?>">
                    <br>
                    The value in this field is sent as the DHCP client identifier
                    and hostname when requesting a DHCP lease. Some ISPs may require
                    this (for client identification).</td>
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