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<?php
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/* $Id$ */
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/*
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	interfaces_lagg_edit.php
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	Copyright (C) 2008 Ermal Lu?i
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	All rights reserved.
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	Redistribution and use in source and binary forms, with or without
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	modification, are permitted provided that the following conditions are met:
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	1. Redistributions of source code must retain the above copyright notice,
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	   this list of conditions and the following disclaimer.
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	2. Redistributions in binary form must reproduce the above copyright
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	   notice, this list of conditions and the following disclaimer in the
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	   documentation and/or other materials provided with the distribution.
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	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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	POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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	pfSense_MODULE:	interfaces
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*/
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##|+PRIV
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##|*IDENT=page-interfacess-lagg
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##|*NAME=Interfaces: LAGG: Edit page
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##|*DESCR=Edit Interface LAGG
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##|*MATCH=interfaces_lagg_edit.php*
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##|-PRIV
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require("guiconfig.inc");
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if (!is_array($config['laggs']['lagg']))
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	$config['laggs']['lagg'] = array();
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$a_laggs = &$config['laggs']['lagg'];
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$portlist = get_interface_list();
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/* add LAGG interfaces */
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if (is_array($config['laggs']['lagg']) && count($config['laggs']['lagg'])) {
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        foreach ($config['laggs']['lagg'] as $lagg)
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                $portlist[$lagg['laggif']] = $lagg;
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}
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$checklist = get_configured_interface_list(false, true);
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$realifchecklist = array();
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foreach ($checklist as $tmpif)
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	$realifchecklist[get_real_interface($tmpif)] = $tmpif;
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$id = $_GET['id'];
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if (isset($_POST['id']))
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	$id = $_POST['id'];
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if (isset($id) && $a_laggs[$id]) {
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	$pconfig['laggif'] = $a_laggs[$id]['laggif'];
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	$pconfig['members'] = $a_laggs[$id]['members'];
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	$pconfig['proto'] = $a_laggs[$id]['proto'];
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	$pconfig['descr'] = $a_laggs[$id]['descr'];
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}
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if ($_POST) {
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	unset($input_errors);
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	$pconfig = $_POST;
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	/* input validation */
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	$reqdfields = explode(" ", "members proto");
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	$reqdfieldsn = explode(",", "Member interfaces, Lagg protocol");
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	do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
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	if (!$input_errors) {
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		$lagg = array();
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		$lagg['members'] = implode(',', $_POST['members']);
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		$lagg['descr'] = $_POST['descr'];
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		$lagg['laggif'] = $_POST['laggif'];
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		$lagg['proto'] = $_POST['proto'];
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                $lagg['laggif'] = interface_lagg_configure($lagg);
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                if ($lagg['laggif'] == "" || !stristr($lagg['laggif'], "lagg"))
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                        $input_errors[] = "Error occured creating interface, please retry.";
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                else {
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                        if (isset($id) && $a_laggs[$id])
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                                $a_laggs[$id] = $lagg;
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                        else
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                                $a_laggs[] = $lagg;
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                        write_config();
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			$confif = convert_real_interface_to_friendly_interface_name($lagg['laggif']);
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                        if ($confif <> "")
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                                interface_configure($confif);
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			header("Location: interfaces_lagg.php");
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			exit;
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		}
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	}
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}
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$pgtitle = array("Firewall","LAGG","Edit");
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include("head.inc");
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?>
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<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
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<?php include("fbegin.inc"); ?>
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<?php if ($input_errors) print_input_errors($input_errors); ?>
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            <form action="interfaces_lagg_edit.php" method="post" name="iform" id="iform">
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              <table width="100%" border="0" cellpadding="6" cellspacing="0">
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				<tr>
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					<td colspan="2" valign="top" class="listtopic">LAGG configuration</td>
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				</tr>
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				<tr>
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                  <td width="22%" valign="top" class="vncellreq">Parent interface</td>
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                  <td width="78%" class="vtable">
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                    <select name="members[]" multiple="true" size="4" class="formselect">
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                      <?php
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					  	foreach ($portlist as $ifn => $ifinfo) {
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							if (array_key_exists($ifn, $realifchecklist))
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								continue;
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							echo "<option value=\"{$ifn}\"";
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							if (stristr($pconfig['members'], $ifn))
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								echo "selected";
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							echo ">". $ifn ."(".$ifinfo['mac'] .")</option>";
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						}
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		      		?>
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                    </select>
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			<br/>
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			<span class="vexpl">Choose the members that will be used for the link aggregation.</span></td>
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                </tr>
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		<tr>
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                  <td valign="top" class="vncellreq">Lag proto</td>
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                  <td class="vtable">
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                    <select name="proto" class="formselect" id="proto">
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		<?php
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		 foreach (array("none", "lacp", "failover", "fec", "loadbalance", "roundrobin") as $proto) {
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			echo "<option value=\"{$proto}\"";
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			if ($proto == $pconfig['proto'])
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				echo "selected";
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			echo ">".strtoupper($proto)."</option>";
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		}
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		?>
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                    </select>					
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                    <br/>
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                    <span class="vexpl">
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		   <ul>
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		<li>
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		    <b>failover</b><br/>      
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			Sends and receives traffic only through the master port.  If
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                  the master port becomes unavailable, the next active port is
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                  used.  The first interface added is the master port; any
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                  interfaces added after that are used as failover devices.
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		</li><li>
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     <b>fec</b><br/>          Supports Cisco EtherChannel.  This is a static setup and
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                  does not negotiate aggregation with the peer or exchange
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                  frames to monitor the link.
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		</li><li>
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     <b>lacp</b><br/>         Supports the IEEE 802.3ad Link Aggregation Control Protocol
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                  (LACP) and the Marker Protocol.  LACP will negotiate a set
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                  of aggregable links with the peer in to one or more Link
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                  Aggregated Groups.  Each LAG is composed of ports of the
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                  same speed, set to full-duplex operation.  The traffic will
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                  be balanced across the ports in the LAG with the greatest
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                  total speed, in most cases there will only be one LAG which
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                  contains all ports.  In the event of changes in physical
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                  connectivity, Link Aggregation will quickly converge to a
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                  new configuration.
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		</li><li>
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     <b>loadbalance</b><br/>  Balances outgoing traffic across the active ports based on
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                  hashed protocol header information and accepts incoming
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                  traffic from any active port.  This is a static setup and
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                  does not negotiate aggregation with the peer or exchange
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                  frames to monitor the link.  The hash includes the Ethernet
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                  source and destination address, and, if available, the VLAN
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                  tag, and the IP source and destination address.
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		</li><li>
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     <b>roundrobin</b><br/>   Distributes outgoing traffic using a round-robin scheduler
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                  through all active ports and accepts incoming traffic from
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                  any active port.
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		</li><li>
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     <b>none</b><br/>         This protocol is intended to do nothing: it disables any
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                  traffic without disabling the lagg interface itself.
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		</li>
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	</ul>
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	          </span></td>
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	    </tr>
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		<tr>
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                  <td width="22%" valign="top" class="vncell">Description</td>
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                  <td width="78%" class="vtable">
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                    <input name="descr" type="text" class="formfld unknown" id="descr" size="40" value="<?=htmlspecialchars($pconfig['descr']);?>">
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                    <br> <span class="vexpl">You may enter a description here
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                    for your reference (not parsed).</span></td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top">&nbsp;</td>
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                  <td width="78%">
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		    <input type="hidden" name="laggif" value="<?=$pconfig['laggif']; ?>">
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                    <input name="Submit" type="submit" class="formbtn" value="Save"> <input type="button" value="Cancel" onclick="history.back()">
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                    <?php if (isset($id) && $a_laggs[$id]): ?>
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                    <input name="id" type="hidden" value="<?=$id;?>">
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                    <?php endif; ?>
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                  </td>
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                </tr>
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              </table>
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</form>
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<?php include("fend.inc"); ?>
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</body>
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</html>
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