pfSense

/*

	services_dhcp_relay.php

	Copyright (C) 2003-2004 Justin Ellison <justin@techadvise.com>.

	Copyright (C) 2010 	Ermal Luçi

        Copyright (C) 2013-2014 Electric Sheep Fencing, LP

	All rights reserved.

	Redistribution and use in source and binary forms, with or without

	1. Redistributions of source code must retain the above copyright notice,

	2. Redistributions in binary form must reproduce the above copyright

	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,

/*

##|+PRIV

require("guiconfig.inc");

$pconfig['enable'] = isset($config['dhcrelay']['enable']);

$pconfig['server'] = $config['dhcrelay']['server'];

$iflist = get_configured_interface_with_descr();

/*   set the enabled flag which will tell us if DHCP server is enabled

if (is_array($config['dhcpd'])) {

		if (isset($dhcp['enable'])) 

			$dhcpd_enabled = true;

}

		$reqdfields = explode(" ", "server interface");

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

		if ($_POST['server']) {

					$input_errors[] = gettext("A valid Destination Server IP address must be specified.");

			}

		}

		$config['dhcrelay']['enable'] = $_POST['enable'] ? true : false;

		$config['dhcrelay']['agentoption'] = $_POST['agentoption'] ? true : false;

		write_config();

		$retval = 0;

		$retval = services_dhcrelay_configure();

		$savemsg = get_std_save_message($retval);

	}

$closehead = false;

$pgtitle = array(gettext("Services"),gettext("DHCP Relay"));

$shortcut_section = "dhcp";

include("head.inc");

?>

<script type="text/javascript">

//<![CDATA[

function enable_change(enable_over) {

		document.iform.interface.disabled = 0;

		document.iform.agentoption.disabled = 0;

		document.iform.interface.disabled = 1;

		document.iform.agentoption.disabled = 1;

}

//]]>

</script>

</head>

<table width="100%" border="0" cellpadding="0" cellspacing="0" summary="dhcp relay">

  <tr>

    <td>

              <table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0" summary="main area">

		<tr>

<?php

	if ($dhcpd_enabled) {

		echo "<td>DHCP Server is currently enabled. Cannot enable the DHCP Relay service while the DHCP Server is enabled on any interface.";

			echo "</td></tr></table></div></td></tr></table></form>";

			include("fend.inc"); 

			echo "</body></html>";

			exit;

?>

			<td colspan="2" valign="top" class="listtopic"><?=gettext("DHCP Relay configuration"); ?></td>

			<input name="enable" type="checkbox" value="yes" <?php if ($pconfig['enable']) echo "checked=\"checked\""; ?> onclick="enable_change(false)" />

                          <strong><?php printf(gettext("Enable DHCP relay on interface"));?></strong>

                        <td width="78%" class="vtable">

				<select id="interface" name="interface[]" multiple="multiple" class="formselect" size="3">

			<?php

					echo "<option value=\"{$ifent}\"";

					if (in_array($ifent, $pconfig['interface']))

						echo " selected=\"selected\"";

					echo ">{$ifdesc}</option>\n";

				<br />Interfaces without an IP address will not be shown.

			</td>

	              <td width="22%" valign="top" class="vtable">&nbsp;</td>

<input name="agentoption" type="checkbox" value="yes" <?php if ($pconfig['agentoption']) echo "checked=\"checked\""; ?> />

                      <strong><?=gettext("Append circuit ID and agent ID to requests"); ?></strong><br />

                      <?php printf(gettext("If this is checked, the DHCP relay will append the circuit ID (%s interface number) and the agent ID to the DHCP request."), $g['product_name']); ?></td>

		</tr>

                        <td width="22%" valign="top" class="vncellreq"><?=gettext("Destination server");?></td>

                        <td width="78%" class="vtable">

                          <input name="server" type="text" class="formfld unknown" id="server" size="20" value="<?=htmlspecialchars($pconfig['server']);?>" />

                          <br />

			  <?=gettext("This is the IP address of the server to which DHCP requests are relayed. You can enter multiple server IP addresses, separated by commas. Select \"Proxy requests to DHCP server on WAN subnet\" to relay DHCP packets to the server that was used on the WAN interface.");?>

                        </td>

		</tr>

                        <td width="22%" valign="top">&nbsp;</td>

                        <td width="78%">

                          <input name="Submit" type="submit" class="formbtn" value="<?=gettext("Save");?>" onclick="enable_change(true)" />

                        </td>

		</tr>

	</div>

    </td>

<script type="text/javascript">

//<![CDATA[

enable_change(false);

//]]>

</script>