<?php

/*
    Copyright (C) 2014-2016 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("services.inc");

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

if ($_SERVER['REQUEST_METHOD'] === 'GET') {
    // read form data
    if (!empty($a_vlans[$_GET['id']])) {
        $id = $_GET['id'];
    }
    $pconfig['if'] = isset($a_vlans[$id]['if']) ? $a_vlans[$id]['if'] : null;
    $pconfig['vlanif'] = isset($a_vlans[$id]['vlanif']) ? $a_vlans[$id]['vlanif'] : null;
    $pconfig['tag'] = isset($a_vlans[$id]['tag']) ? $a_vlans[$id]['tag'] : null;
    $pconfig['pcp'] = isset($a_vlans[$id]['pcp']) ? $a_vlans[$id]['pcp'] : 0;
    $pconfig['descr'] = isset($a_vlans[$id]['descr']) ? $a_vlans[$id]['descr'] : null;
} elseif ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // validate / save form data
    if (!empty($a_vlans[$_POST['id']])) {
        $id = $_POST['id'];
    }

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

    if (isset($pconfig['pcp']) && (!is_numericint($pconfig['pcp']) || $pconfig['pcp'] < 0 || $pconfig['pcp'] > 7)) {
        $input_errors[] = gettext("The VLAN priority must be an integer between 0 and 7.");
    }

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

    if (isset($id) && $pconfig['tag'] && $pconfig['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] === $vlan) {
            continue;
        }
        if (($vlan['if'] == $pconfig['if']) && ($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'] == $pconfig['tag'] && $qinq['if'] == $pconfig['if']) {
                $input_errors[] = gettext("A QinQ VLAN exists with this tag please remove it to use this tag with.");
            }
        }
    }

    if (count($input_errors) == 0) {
        $confif = "";
        if (isset($id)) {
            if (($a_vlans[$id]['if'] != $pconfig['if']) || ($a_vlans[$id]['tag'] != $pconfig['tag']) || ($a_vlans[$id]['pcp'] != $pconfig['pcp'])) {
                if (!empty($a_vlans[$id]['vlanif'])) {
                    $confif = convert_real_interface_to_friendly_interface_name($a_vlans[$id]['vlanif']);
                    legacy_interface_destroy($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['pcp'] = $pconfig['pcp'];
        $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] = $vlan;
            } else {
                $a_vlans[] = $vlan;
            }
            write_config();

            if ($confif <> "") {
                interface_configure($confif);
            }
            header(url_safe('Location: /interfaces_vlan.php'));
            exit;
        }
    }
}

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); ?>
      <section class="col-xs-12">
        <div class="content-box">
          <div class="table-responsive">
            <form method="post" name="iform" id="iform">
              <table class="table table-striped opnsense_standard_table_form">
                <thead>
                  <tr>
                    <td width="22%"><strong><?=gettext("Interface VLAN Edit");?></strong></td>
                    <td width="78%" align="right">
                      <small><?=gettext("full help"); ?> </small>
                      <i class="fa fa-toggle-off text-danger"  style="cursor: pointer;" id="show_all_help_page" type="button"></i>
                      &nbsp;
                    </td>
                  </tr>
                </thead>
                <tbody>
                  <tr>
                    <td><a id="help_for_if" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Parent interface");?></td>
                    <td>
                      <select name="if" class="selectpicker">
<?php
                      $portlist = get_interface_list();
                      /* add LAGG interfaces */
                      if (isset($config['laggs']['lagg'])) {
                          foreach ($config['laggs']['lagg'] as $lagg) {
                              $portlist[$lagg['laggif']] = $lagg;
                          }
                      }
                      foreach ($portlist as $ifn => $ifinfo):
                        if (!is_jumbo_capable($ifn)) {
                            continue;
                        }?>
                        <option value="<?=$ifn;?>" <?=$ifn == $pconfig['if'] ? " selected=\"selected\"" : "";?>>
                          <?=htmlspecialchars($ifn);?>  ( <?= !empty($ifinfo['mac']) ? $ifinfo['mac'] :"" ;?> )
                        </option>
<?php
                      endforeach;?>

                      </select>
                      <div class="hidden" for="help_for_if">
                        <?=gettext("Only VLAN capable interfaces will be shown.");?>
                      </div>
                    </td>
                  </tr>
                  <tr>
                    <td><a id="help_for_tag" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("VLAN tag");?></td>
                    <td>
                      <input name="tag" type="text" value="<?=$pconfig['tag'];?>" />
                      <div class="hidden" for="help_for_tag">
                        <?=gettext("802.1Q VLAN tag (between 1 and 4094)");?>
                      </div>
                    </td>
                  </tr>
                  <tr>
                    <td><a id="help_for_pcp" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("VLAN priority");?></td>
                    <td>
                      <select name="pcp">
<? foreach (interfaces_vlan_priorities() as $pcp => $priority): ?>
                        <option value="<?=$pcp;?>"<?=($pconfig['pcp'] == $pcp ? ' selected="selected"' : '');?>><?=htmlspecialchars($priority);?></option>
<? endforeach ?>
                      </select>
                      <div class="hidden" for="help_for_pcp">
                        <?=gettext('802.1Q VLAN PCP (priority code point)');?>
                      </div>
                    </td>
                  </tr>
                  <tr>
                    <td><a id="help_for_descr" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Description"); ?></td>
                    <td>
                      <input name="descr" type="text" value="<?=$pconfig['descr'];?>" />
                      <div class="hidden" for="help_for_descr">
                        <?=gettext("You may enter a description here for your reference (not parsed).");?>
                      </div>
                    </td>
                  </tr>
                  <tr>
                    <td width="22%" valign="top">&nbsp;</td>
                    <td width="78%">
                      <input type="hidden" name="vlanif" value="<?=$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='/interfaces_vlan.php'" />
                      <?php if (isset($id)): ?>
                      <input name="id" type="hidden" value="<?=$id;?>" />
                      <?php endif; ?>
                    </td>
                  </tr>
                </tbody>
              </table>
            </form>
          </div>
        </div>
      </section>
    </div>
  </div>
</section>
<?php include("foot.inc"); ?>
