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#!/usr/local/bin/php
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<?php
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/* $Id$ */
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/*
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services_dhcp.php
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part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
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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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require("guiconfig.inc");
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$if = $_GET['if'];
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if ($_POST['if'])
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$if = $_POST['if'];
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$iflist = array("lan" => "LAN");
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for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
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$oc = $config['interfaces']['opt' . $i];
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if (isset($oc['enable']) && $oc['if'] && (!$oc['bridge'])) {
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$iflist['opt' . $i] = $oc['descr'];
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}
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}
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if (!$if || !isset($iflist[$if]))
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$if = "lan";
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$pconfig['range_from'] = $config['dhcpd'][$if]['range']['from'];
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$pconfig['range_to'] = $config['dhcpd'][$if]['range']['to'];
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$pconfig['deftime'] = $config['dhcpd'][$if]['defaultleasetime'];
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$pconfig['maxtime'] = $config['dhcpd'][$if]['maxleasetime'];
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$pconfig['gateway'] = $config['dhcpd'][$if]['gateway'];
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list($pconfig['wins1'],$pconfig['wins2']) = $config['dhcpd'][$if]['winsserver'];
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$pconfig['enable'] = isset($config['dhcpd'][$if]['enable']);
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$pconfig['denyunknown'] = isset($config['dhcpd'][$if]['denyunknown']);
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$pconfig['staticarp'] = isset($config['dhcpd'][$if]['staticarp']);
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$ifcfg = $config['interfaces'][$if];
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if (!is_array($config['dhcpd'][$if]['staticmap'])) {
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$config['dhcpd'][$if]['staticmap'] = array();
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}
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staticmaps_sort($if);
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$a_maps = &$config['dhcpd'][$if]['staticmap'];
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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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$reqdfields = explode(" ", "range_from range_to");
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$reqdfieldsn = explode(",", "Range begin,Range end");
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do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
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if (($_POST['range_from'] && !is_ipaddr($_POST['range_from']))) {
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$input_errors[] = "A valid range must be specified.";
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}
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if (($_POST['range_to'] && !is_ipaddr($_POST['range_to']))) {
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$input_errors[] = "A valid range must be specified.";
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}
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if (($_POST['gateway'] && !is_ipaddr($_POST['gateway'])))
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$input_errors[] = "A valid IP address must be specified for the gateway.";
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if (($_POST['wins1'] && !is_ipaddr($_POST['wins1'])) || ($_POST['wins2'] && !is_ipaddr($_POST['wins2']))) {
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$input_errors[] = "A valid IP address must be specified for the primary/secondary WINS server.";
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}
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if ($_POST['deftime'] && (!is_numeric($_POST['deftime']) || ($_POST['deftime'] < 60))) {
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$input_errors[] = "The default lease time must be at least 60 seconds.";
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}
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if ($_POST['maxtime'] && (!is_numeric($_POST['maxtime']) || ($_POST['maxtime'] < 60) || ($_POST['maxtime'] <= $_POST['deftime']))) {
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$input_errors[] = "The maximum lease time must be at least 60 seconds and higher than the default lease time.";
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}
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if (!$input_errors) {
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/* make sure the range lies within the current subnet */
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$subnet_start = (ip2long($ifcfg['ipaddr']) & gen_subnet_mask_long($ifcfg['subnet']));
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$subnet_end = (ip2long($ifcfg['ipaddr']) | (~gen_subnet_mask_long($ifcfg['subnet'])));
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if ((ip2long($_POST['range_from']) < $subnet_start) || (ip2long($_POST['range_from']) > $subnet_end) ||
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(ip2long($_POST['range_to']) < $subnet_start) || (ip2long($_POST['range_to']) > $subnet_end)) {
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$input_errors[] = "The specified range lies outside of the current subnet.";
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}
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if (ip2long($_POST['range_from']) > ip2long($_POST['range_to']))
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$input_errors[] = "The range is invalid (first element higher than second element).";
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/* make sure that the DHCP Relay isn't enabled on this interface */
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if (isset($config['dhcrelay'][$if]['enable']))
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$input_errors[] = "You must disable the DHCP relay on the {$iflist[$if]} interface before enabling the DHCP server.";
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}
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}
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if (!$input_errors) {
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$config['dhcpd'][$if]['range']['from'] = $_POST['range_from'];
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$config['dhcpd'][$if]['range']['to'] = $_POST['range_to'];
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$config['dhcpd'][$if]['defaultleasetime'] = $_POST['deftime'];
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$config['dhcpd'][$if]['maxleasetime'] = $_POST['maxtime'];
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$config['dhcpd'][$if]['enable'] = $_POST['enable'] ? true : false;
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$config['dhcpd'][$if]['denyunknown'] = $_POST['denyunknown'] ? true : false;
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unset($config['dhcpd'][$if]['winsserver']);
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if ($_POST['wins1'])
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$config['dhcpd'][$if]['winsserver'][] = $_POST['wins1'];
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if ($_POST['wins2'])
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$config['dhcpd'][$if]['winsserver'][] = $_POST['wins2'];
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$config['dhcpd'][$if]['gateway'] = $_POST['gateway'];
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$config['dhcpd'][$if]['staticarp'] = $_POST['staticarp'] ? true : false;
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write_config();
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/* static arp configuration */
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if (isset($config['dhcpd'][$if]['staticarp']))
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interfaces_staticarp_configure($if);
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$retval = 0;
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if (!file_exists($d_sysrebootreqd_path)) {
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config_lock();
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$retval = services_dhcpd_configure();
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config_unlock();
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}
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$savemsg = get_std_save_message($retval);
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if ($retval == 0) {
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if (file_exists($d_staticmapsdirty_path))
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unlink($d_staticmapsdirty_path);
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}
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}
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}
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if ($_GET['act'] == "del") {
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if ($a_maps[$_GET['id']]) {
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unset($a_maps[$_GET['id']]);
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write_config();
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touch($d_staticmapsdirty_path);
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header("Location: services_dhcp.php?if={$if}");
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exit;
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}
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}
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?>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<title><?=gentitle("Services: DHCP server");?></title>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<link href="gui.css" rel="stylesheet" type="text/css">
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<script language="JavaScript">
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<!--
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function enable_change(enable_over) {
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var endis;
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endis = !(document.iform.enable.checked || enable_over);
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document.iform.range_from.disabled = endis;
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document.iform.range_to.disabled = endis;
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document.iform.wins1.disabled = endis;
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document.iform.wins2.disabled = endis;
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document.iform.deftime.disabled = endis;
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document.iform.maxtime.disabled = endis;
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document.iform.gateway.disabled = endis;
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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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<p class="pgtitle">Services: DHCP server</p>
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<form action="services_dhcp.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($savemsg); ?>
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<?php if (file_exists($d_staticmapsdirty_path)): ?><p>
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<?php print_info_box_np("The static mapping configuration has been changed.<br>You must apply the changes in order for them to take effect.");?><br>
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<input name="apply" type="submit" class="formbtn" id="apply" value="Apply changes"></p>
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<?php endif; ?>
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<table width="100%" border="0" cellpadding="0" cellspacing="0">
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<tr><td>
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<ul id="tabnav">
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<?php foreach ($iflist as $ifent => $ifname):
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if ($ifent == $if): ?>
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<li class="tabact"><?=htmlspecialchars($ifname);?></li>
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<?php else: ?>
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<li class="tabinact"><a href="services_dhcp.php?if=<?=$ifent;?>"><?=htmlspecialchars($ifname);?></a></li>
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<?php endif; ?>
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<?php endforeach; ?>
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</ul>
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</td></tr>
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<tr>
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<td class="tabcont">
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<table width="100%" border="0" cellpadding="6" cellspacing="0">
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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="enable" type="checkbox" value="yes" <?php if ($pconfig['enable']) echo "checked"; ?> onClick="enable_change(false)">
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<strong>Enable DHCP server on
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<?=htmlspecialchars($iflist[$if]);?>
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interface</strong></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vtable"> </td>
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<td width="78%" class="vtable">
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<input name="denyunknown" type="checkbox" value="yes" <?php if ($pconfig['denyunknown']) echo "checked"; ?>>
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<strong>Deny unknown clients</strong><br>
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If this is checked, only the clients defined below will get DHCP leases from this server. </td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq">Subnet</td>
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<td width="78%" class="vtable">
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<?=gen_subnet($ifcfg['ipaddr'], $ifcfg['subnet']);?>
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq">Subnet
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mask</td>
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<td width="78%" class="vtable">
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<?=gen_subnet_mask($ifcfg['subnet']);?>
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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">Available
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range</td>
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<td width="78%" class="vtable">
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<?=long2ip(ip2long($ifcfg['ipaddr']) & gen_subnet_mask_long($ifcfg['subnet']));?>
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-
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<?=long2ip(ip2long($ifcfg['ipaddr']) | (~gen_subnet_mask_long($ifcfg['subnet']))); ?>
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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">Range</td>
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<td width="78%" class="vtable">
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<input name="range_from" type="text" class="formfld" id="range_from" size="20" value="<?=htmlspecialchars($pconfig['range_from']);?>">
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to <input name="range_to" type="text" class="formfld" id="range_to" size="20" value="<?=htmlspecialchars($pconfig['range_to']);?>"></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell">WINS servers</td>
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<td width="78%" class="vtable">
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<input name="wins1" type="text" class="formfld" id="wins1" size="20" value="<?=htmlspecialchars($pconfig['wins1']);?>"><br>
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<input name="wins2" type="text" class="formfld" id="wins2" size="20" value="<?=htmlspecialchars($pconfig['wins2']);?>"></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell">Gateway</td>
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<td width="78%" class="vtable">
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<input name="gateway" type="text" class="formfld" id="gateway" size="20" value="<?=htmlspecialchars($pconfig['gateway']);?>"><br>
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The default is to use the IP of the firewall as the gateway. Specify an alternate gateway here if this is not the correct gateway for your network.
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell">Default lease
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time</td>
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<td width="78%" class="vtable">
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<input name="deftime" type="text" class="formfld" id="deftime" size="10" value="<?=htmlspecialchars($pconfig['deftime']);?>">
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seconds<br>
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This is used for clients that do not ask for a specific
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expiration time.<br>
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The default is 7200 seconds.</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell">Maximum lease
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time</td>
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<td width="78%" class="vtable">
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<input name="maxtime" type="text" class="formfld" id="maxtime" size="10" value="<?=htmlspecialchars($pconfig['maxtime']);?>">
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seconds<br>
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This is the maximum lease time for clients that ask
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for a specific expiration time.<br>
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The default is 86400 seconds.</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell">Static ARP</td>
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<td width="78%" class="vtable"><input type="checkbox" value="yes" name="staticarp" id="staticarp" <?php if($pconfig['staticarp']) echo " checked"; ?>> <b>Enable Static ARP entries</b><br>
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<span class="red"><strong>Note:</strong></span> This feature is under development. Only the machines listed below will be able to communicate with the firewall on this NIC. Disabling this has been tested to be broken, a reboot will be required to disable. Be warned!</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="if" type="hidden" value="<?=$if;?>">
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<input name="Submit" type="submit" class="formbtn" value="Save" onclick="enable_change(true)">
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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%"> <p><span class="vexpl"><span class="red"><strong>Note:<br>
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</strong></span>The DNS servers entered in <a href="system.php">System:
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General setup</a> (or the <a href="services_dnsmasq.php">DNS
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forwarder</a>, if enabled) </span><span class="vexpl">will
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be assigned to clients by the DHCP server.<br>
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<br>
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|
316
|
The DHCP lease table can be viewed on the <a href="diag_dhcp_leases.php">Diagnostics:
|
|
317
|
DHCP leases</a> page.<br>
|
|
318
|
</span></p></td>
|
|
319
|
</tr>
|
|
320
|
</table>
|
|
321
|
|
|
322
|
<table width="100%" border="0" cellpadding="0" cellspacing="0">
|
|
323
|
<tr>
|
|
324
|
<td width="35%" class="listhdrr">MAC address </td>
|
|
325
|
<td width="20%" class="listhdrr">IP address</td>
|
|
326
|
<td width="35%" class="listhdr">Description</td>
|
|
327
|
<td width="10%" class="list"></td>
|
|
328
|
</tr>
|
|
329
|
<?php $i = 0; foreach ($a_maps as $mapent): ?>
|
|
330
|
<tr>
|
|
331
|
<td class="listlr" ondblclick="document.location='services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>';">
|
|
332
|
<?=htmlspecialchars($mapent['mac']);?>
|
|
333
|
</td>
|
|
334
|
<td class="listr" ondblclick="document.location='services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>';">
|
|
335
|
<?=htmlspecialchars($mapent['ipaddr']);?>
|
|
336
|
</td>
|
|
337
|
<td class="listbg" ondblclick="document.location='services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>';">
|
|
338
|
<font color="#FFFFFFF"><?=htmlspecialchars($mapent['descr']);?> </font>
|
|
339
|
</td>
|
|
340
|
<td valign="middle" nowrap class="list">
|
|
341
|
<table border="0" cellspacing="0" cellpadding="1">
|
|
342
|
<tr>
|
|
343
|
<td valign="middle"><a href="services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>"><img src="e.gif" width="17" height="17" border="0"></a></td>
|
|
344
|
<td valign="middle"><a href="services_dhcp.php?if=<?=$if;?>&act=del&id=<?=$i;?>" onclick="return confirm('Do you really want to delete this mapping?')"><img src="x.gif" width="17" height="17" border="0"></a></td>
|
|
345
|
</tr>
|
|
346
|
</table>
|
|
347
|
</td>
|
|
348
|
</tr>
|
|
349
|
<?php $i++; endforeach; ?>
|
|
350
|
<tr>
|
|
351
|
<td class="list" colspan="3"></td>
|
|
352
|
<td class="list">
|
|
353
|
<table border="0" cellspacing="0" cellpadding="1">
|
|
354
|
<tr>
|
|
355
|
<td valign="middle"><a href="services_dhcp_edit.php?if=<?=$if;?>"><img src="plus.gif" width="17" height="17" border="0"></a></td>
|
|
356
|
</tr>
|
|
357
|
</table>
|
|
358
|
</td>
|
|
359
|
</tr>
|
|
360
|
</table>
|
|
361
|
</td>
|
|
362
|
</tr>
|
|
363
|
</table>
|
|
364
|
</form>
|
|
365
|
<script language="JavaScript">
|
|
366
|
<!--
|
|
367
|
enable_change(false);
|
|
368
|
//-->
|
|
369
|
</script>
|
|
370
|
<?php include("fend.inc"); ?>
|
|
371
|
</body>
|
|
372
|
</html>
|