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<?php
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/*
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services_dhcp_relay.php
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Copyright (C) 2003-2004 Justin Ellison <justin@techadvise.com>.
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Copyright (C) 2010 Ermal Luçi
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Copyright (C) 2013-2015 Electric Sheep Fencing, LP
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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: dhcprelay
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*/
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##|+PRIV
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##|*IDENT=page-services-dhcprelay
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##|*NAME=Services: DHCP Relay page
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##|*DESCR=Allow access to the 'Services: DHCP Relay' page.
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##|*MATCH=services_dhcp_relay.php*
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##|-PRIV
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require("guiconfig.inc");
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$pconfig['enable'] = isset($config['dhcrelay']['enable']);
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if (empty($config['dhcrelay']['interface']))
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$pconfig['interface'] = array();
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else
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$pconfig['interface'] = explode(",", $config['dhcrelay']['interface']);
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$pconfig['server'] = $config['dhcrelay']['server'];
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$pconfig['agentoption'] = isset($config['dhcrelay']['agentoption']);
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$iflist = get_configured_interface_with_descr();
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/* set the enabled flag which will tell us if DHCP server is enabled
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* on any interface. We will use this to disable dhcp-relay since
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* the two are not compatible with each other.
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*/
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$dhcpd_enabled = false;
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if (is_array($config['dhcpd'])) {
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foreach($config['dhcpd'] as $dhcpif => $dhcp) {
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if (isset($dhcp['enable']) && isset($config['interfaces'][$dhcpif]['enable'])) {
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$dhcpd_enabled = true;
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break;
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}
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}
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}
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if ($_POST) {
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unset($input_errors);
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$pconfig = $_POST;
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/* input validation */
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if ($_POST['enable']) {
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$reqdfields = explode(" ", "server interface");
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$reqdfieldsn = array(gettext("Destination Server"), gettext("Interface"));
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do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
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if ($_POST['server']) {
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$checksrv = explode(",", $_POST['server']);
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foreach ($checksrv as $srv) {
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if (!is_ipaddr($srv))
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$input_errors[] = gettext("A valid Destination Server IP address must be specified.");
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}
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}
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}
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if (!$input_errors) {
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$config['dhcrelay']['enable'] = $_POST['enable'] ? true : false;
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$config['dhcrelay']['interface'] = implode(",", $_POST['interface']);
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$config['dhcrelay']['agentoption'] = $_POST['agentoption'] ? true : false;
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$config['dhcrelay']['server'] = $_POST['server'];
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write_config();
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$retval = 0;
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$retval = services_dhcrelay_configure();
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$savemsg = get_std_save_message($retval);
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}
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}
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$closehead = false;
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$pgtitle = array(gettext("Services"),gettext("DHCP Relay"));
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$shortcut_section = "dhcp";
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include("head.inc");
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?>
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<script type="text/javascript">
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//<![CDATA[
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function enable_change(enable_over) {
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if (document.iform.enable.checked || enable_over) {
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document.iform.server.disabled = 0;
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document.iform.interface.disabled = 0;
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document.iform.agentoption.disabled = 0;
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} else {
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document.iform.server.disabled = 1;
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document.iform.interface.disabled = 1;
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document.iform.agentoption.disabled = 1;
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}
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}
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//]]>
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</script>
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</head>
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<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
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<?php include("fbegin.inc"); ?>
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<form action="services_dhcp_relay.php" method="post" name="iform" id="iform">
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<?php if ($input_errors) print_input_errors($input_errors); ?>
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<?php if ($savemsg) print_info_box($savemsg); ?>
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<table width="100%" border="0" cellpadding="0" cellspacing="0" summary="dhcp relay">
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<tr>
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<td>
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<div id="mainarea">
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<table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0" summary="main area">
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<tr>
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<?php
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if ($dhcpd_enabled) {
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echo "<td>DHCP Server is currently enabled. Cannot enable the DHCP Relay service while the DHCP Server is enabled on any interface.";
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echo "</td></tr></table></div></td></tr></table></form>";
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include("fend.inc");
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echo "</body></html>";
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exit;
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}
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?>
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<td colspan="2" valign="top" class="listtopic"><?=gettext("DHCP Relay configuration"); ?></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq">Enable</td>
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<td width="78%" class="vtable">
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<input name="enable" type="checkbox" value="yes" <?php if ($pconfig['enable']) echo "checked=\"checked\""; ?> onclick="enable_change(false)" />
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<strong><?php printf(gettext("Enable DHCP relay on interface"));?></strong>
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq">Interface(s)</td>
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<td width="78%" class="vtable">
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<select id="interface" name="interface[]" multiple="multiple" class="formselect" size="3">
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<?php
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foreach ($iflist as $ifent => $ifdesc) {
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if (!is_ipaddr(get_interface_ip($ifent)))
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continue;
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echo "<option value=\"{$ifent}\"";
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if (in_array($ifent, $pconfig['interface']))
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echo " selected=\"selected\"";
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echo ">{$ifdesc}</option>\n";
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}
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?>
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</select>
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<br />Interfaces without an IP address will not be shown.
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vtable"> </td>
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<td width="78%" class="vtable">
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<input name="agentoption" type="checkbox" value="yes" <?php if ($pconfig['agentoption']) echo "checked=\"checked\""; ?> />
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<strong><?=gettext("Append circuit ID and agent ID to requests"); ?></strong><br />
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<?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."), $g['product_name']); ?></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq"><?=gettext("Destination server");?></td>
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<td width="78%" class="vtable">
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<input name="server" type="text" class="formfld unknown" id="server" size="20" value="<?=htmlspecialchars($pconfig['server']);?>" />
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<br />
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<?=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.");?>
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top"> </td>
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<td width="78%">
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<input name="Submit" type="submit" class="formbtn" value="<?=gettext("Save");?>" onclick="enable_change(true)" />
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</td>
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</tr>
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</table>
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</div>
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</td>
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</tr>
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</table>
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</form>
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<script type="text/javascript">
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//<![CDATA[
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enable_change(false);
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//]]>
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</script>
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<?php include("fend.inc"); ?>
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</body>
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</html>
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