<?php

/*
	Copyright (C) 2014-2015 Deciso B.V.
	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
	All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:

	1. Redistributions of source code must retain the above copyright notice,
	   this list of conditions and the following disclaimer.

	2. Redistributions in binary form must reproduce the above copyright
	   notice, this list of conditions and the following disclaimer in the
	   documentation and/or other materials provided with the distribution.

	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	POSSIBILITY OF SUCH DAMAGE.
*/

require_once("guiconfig.inc");
require_once("system.inc");
require_once("interfaces.inc");
require_once("openvpn.inc");
require_once("pfsense-utils.inc");
require_once("unbound.inc");
require_once("services.inc");

$referer = (isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '/interfaces_vlan.php');

if (!is_array($config['vlans'])) {
	$config['vlans'] = array();
}

if (!is_array($config['vlans']['vlan'])) {
	$config['vlans']['vlan'] = array();
}

$a_vlans = &$config['vlans']['vlan'];

$portlist = get_interface_list();

/* add LAGG interfaces */
if (isset($config['laggs']['lagg'])) {
        foreach ($config['laggs']['lagg'] as $lagg) {
                $portlist[$lagg['laggif']] = $lagg;
	}
}

if (is_numericint($_GET['id']))
	$id = $_GET['id'];
if (isset($_POST['id']) && is_numericint($_POST['id']))
	$id = $_POST['id'];

if (isset($id) && $a_vlans[$id]) {
	$pconfig['if'] = $a_vlans[$id]['if'];
	$pconfig['vlanif'] = $a_vlans[$id]['vlanif'];
	$pconfig['tag'] = $a_vlans[$id]['tag'];
	$pconfig['descr'] = $a_vlans[$id]['descr'];
}

if ($_POST) {

	unset($input_errors);
	$pconfig = $_POST;

	/* input validation */
	$reqdfields = explode(" ", "if tag");
	$reqdfieldsn = array(gettext("Parent interface"),gettext("VLAN tag"));

	do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

	if ($_POST['tag'] && (!is_numericint($_POST['tag']) || ($_POST['tag'] < '1') || ($_POST['tag'] > '4094'))) {
		$input_errors[] = gettext("The VLAN tag must be an integer between 1 and 4094.");
	}

	if (!does_interface_exist($_POST['if']))
		$input_errors[] = gettext("Interface supplied as parent is invalid");

	if (isset($id)) {
		if ($_POST['tag'] && $_POST['tag'] != $a_vlans[$id]['tag']) {
			if (!empty($a_vlans[$id]['vlanif']) && convert_real_interface_to_friendly_interface_name($a_vlans[$id]['vlanif']) != NULL)
				$input_errors[] = gettext("Interface is assigned and you cannot change the VLAN tag while assigned.");
		}
	}
	foreach ($a_vlans as $vlan) {
		if (isset($id) && ($a_vlans[$id]) && ($a_vlans[$id] === $vlan))
			continue;

		if (($vlan['if'] == $_POST['if']) && ($vlan['tag'] == $_POST['tag'])) {
			$input_errors[] = sprintf(gettext("A VLAN with the tag %s is already defined on this interface."),$vlan['tag']);
			break;
		}
	}
	if (isset($config['qinqs']['qinqentry'])) {
		foreach ($config['qinqs']['qinqentry'] as $qinq) {
			if ($qinq['tag'] == $_POST['tag'] && $qinq['if'] == $_POST['if']) {
				$input_errors[] = gettext("A QinQ VLAN exists with this tag please remove it to use this tag with.");
			}
		}
	}

	if (!$input_errors) {
		if (isset($id) && $a_vlans[$id]) {
			if (($a_vlans[$id]['if'] != $_POST['if']) || ($a_vlans[$id]['tag'] != $_POST['tag'])) {
				if (!empty($a_vlans[$id]['vlanif'])) {
					$confif = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
					legacy_interface_destroy($a_vlans[$id]['vlanif']);
				} else {
					legacy_interface_destroy("{$a_vlans[$id]['if']}_vlan{$a_vlans[$id]['tag']}");
					$confif = convert_real_interface_to_friendly_interface_name("{$a_vlans[$id]['if']}_vlan{$a_vlans[$id]['tag']}");
				}
				if ($confif <> "")
					$config['interfaces'][$confif]['if'] = "{$_POST['if']}_vlan{$_POST['tag']}";
			}
		}
		$vlan = array();
		$vlan['if'] = $_POST['if'];
		$vlan['tag'] = $_POST['tag'];
		$vlan['descr'] = $_POST['descr'];
		$vlan['vlanif'] = "{$_POST['if']}_vlan{$_POST['tag']}";

		$vlan['vlanif'] = interface_vlan_configure($vlan);
                if ($vlan['vlanif'] == "" || !stristr($vlan['vlanif'], "vlan"))
                        $input_errors[] = gettext("Error occurred creating interface, please retry.");
                else {
                        if (isset($id) && $a_vlans[$id])
                                $a_vlans[$id] = $vlan;
                        else
                                $a_vlans[] = $vlan;

                        write_config();

			if ($confif <> "")
				interface_configure($confif);

			header("Location: interfaces_vlan.php");
			exit;
		}
	}
}

$pgtitle = array(gettext("Interfaces"),gettext("VLAN"),gettext("Edit"));

include("head.inc");

?>

<body>
<?php include("fbegin.inc"); ?>

	<section class="page-content-main">
		<div class="container-fluid">
			<div class="row">

				<?php if (isset($input_errors) && count($input_errors) > 0) print_input_errors($input_errors); ?>
				<div id="inputerrors"></div>


			    <section class="col-xs-12">

				<div class="content-box">

					 <header class="content-box-head container-fluid">
				        <h3><?=gettext("VLAN configuration");?></h3>
				    </header>

				    <div class="content-box-main">

						<form action="interfaces_vlan_edit.php" method="post" name="iform" id="iform">

		                        <div class="table-responsive">
			                        <table class="table table-striped table-sort">

										<tr>
						                  <td width="22%" valign="top" class="vncellreq"><?=gettext("Parent interface");?></td>
						                  <td width="78%" class="vtable">
						                    <select name="if" class="selectpicker">
						                      <?php
											  foreach ($portlist as $ifn => $ifinfo)
												if (is_jumbo_capable($ifn)) {
													echo "<option value=\"{$ifn}\"";
													if ($ifn == $pconfig['if'])
														echo " selected=\"selected\"";
													echo ">";
												        echo htmlspecialchars($ifn . " (" . $ifinfo['mac'] . ")");
													echo "</option>";
												}
								      ?>
						                    </select>
									<br />
									<span class="vexpl"><?=gettext("Only VLAN capable interfaces will be shown.");?></span></td>
						                </tr>
										<tr>
						                  <td valign="top" class="vncellreq"><?=gettext("VLAN tag ");?></td>
						                  <td class="vtable">
						                    <input name="tag" type="text" class="form-control unknown" id="tag" size="6" value="<?=htmlspecialchars($pconfig['tag']);?>" />
						                    <br />
						                    <span class="vexpl"><?=gettext("802.1Q VLAN tag (between 1 and 4094) ");?></span></td>
									    </tr>
										<tr>
						                  <td width="22%" valign="top" class="vncell"><?=gettext("Description");?></td>
						                  <td width="78%" class="vtable">
						                    <input name="descr" type="text" class="form-control unknown" id="descr" size="40" value="<?=htmlspecialchars($pconfig['descr']);?>" />
						                    <br /> <span class="vexpl"><?=gettext("You may enter a description here ".
						                    "for your reference (not parsed).");?></span></td>
						                </tr>
						                <tr>
						                  <td width="22%" valign="top">&nbsp;</td>
						                  <td width="78%">
								    <input type="hidden" name="vlanif" value="<?=htmlspecialchars($pconfig['vlanif']); ?>" />
						                    <input name="Submit" type="submit" class="btn btn-primary" value="<?=gettext("Save");?>" />
						                    <input type="button" class="btn btn-default" value="<?=gettext("Cancel");?>" onclick="window.location.href='<?=$referer;?>'" />
						                    <?php if (isset($id) && $a_vlans[$id]): ?>
						                    <input name="id" type="hidden" value="<?=htmlspecialchars($id);?>" />
						                    <?php endif; ?>
						                  </td>
						                </tr>
						              </table>
		                        </div>
						</form>
				    </div>
				</div>
			    </section>
			</div>
		</div>
	</section>
<?php include("foot.inc"); ?>
