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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 = $_POST['if'];
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/* if OLSRD is enabled, allow WAN to house DHCP. */
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if($config['installedpackages']['olsrd']) {
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foreach($config['installedpackages']['olsrd']['config'] as $olsrd) {
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if($olsrd['enable']) {
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$iflist = array("lan" => "LAN", "wan" => "WAN");
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$is_olsr_enabled = true;
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break;
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}
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}
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}
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if(!$iflist)
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$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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list($pconfig['dns1'],$pconfig['dns2']) = $config['dhcpd'][$if]['dnsserver'];
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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'][$if]['staticarp']);
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$pconfig['failover_peerip'] = $config['dhcpd'][$if]['failover_peerip'];
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$pconfig['netmask'] = $config['dhcpd'][$if]['netmask'];
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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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function is_inrange($test, $start, $end) {
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if ( (ip2long($test) < ip2long($end)) && (ip2long($test) > ip2long($start)) )
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return true;
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else
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return false;
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}
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if ($_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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$reqdfields = explode(" ", "range_from range_to");
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$reqdfieldsn = explode(",", "Range begin,Range end");
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do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
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foreach($a_maps as $mapent) {
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if(is_inrange($mapent['ipaddr'], $_POST['range_from'], $_POST['range_to'])) {
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$input_errors[] = "{$mapent['ipaddr']} is inside the range you specified.";
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}
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}
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if (($_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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$input_errors[] = "A valid IP address must be specified for the primary/secondary WINS servers.";
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}
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if (($_POST['dns1'] && !is_ipaddr($_POST['dns1'])) || ($_POST['dns2'] && !is_ipaddr($_POST['dns2']))) {
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$input_errors[] = "A valid IP address must be specified for the primary/secondary DNS servers.";
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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]['netmask'] = $_POST['netmask'];
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$previous = $config['dhcpd'][$if]['failover_peerip'];
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if($previous <> $_POST['failover_peerip']) {
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mwexec("rm -rf /var/dhcpd/var/db/*");
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}
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$config['dhcpd'][$if]['failover_peerip'] = $_POST['failover_peerip'];
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unset($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'][] = $_POST['wins2'];
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unset($config['dhcpd'][$if]['dnsserver']);
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if ($_POST['dns1'])
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$config['dhcpd'][$if]['dnsserver'][] = $_POST['dns1'];
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if ($_POST['dns2'])
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$config['dhcpd'][$if]['dnsserver'][] = $_POST['dns2'];
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$config['dhcpd'][$if]['gateway'] = $_POST['gateway'];
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if($_POST['denyunknown'] == "yes")
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$config['dhcpd'][$if]['denyunknown'] = true;
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else
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unset($config['dhcpd'][$if]['denyunknown']);
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if($_POST['enable'] == "yes")
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$config['dhcpd'][$if]['enable'] = $_POST['enable'];
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else
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unset($config['dhcpd'][$if]['enable']);
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if($_POST['staticarp'] == "yes") {
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$config['dhcpd'][$if]['staticarp'] = true;
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} else {
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unset($config['dhcpd'][$if]['staticarp']);
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}
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write_config();
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/* static arp configuration */
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interfaces_staticarp_configure($if);
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$retval = 0;
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config_lock();
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$retval = services_dhcpd_configure();
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config_unlock();
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$savemsg = get_std_save_message($retval);
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}
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}
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if ($_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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header("Location: services_dhcp.php?if={$if}");
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exit;
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}
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}
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$pgtitle = "Services: DHCP server";
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include("head.inc");
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?>
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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.dns1.disabled = endis;
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document.iform.dns2.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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document.iform.failover_peerip.disabled = endis;
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document.iform.staticarp.disabled = endis;
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document.iform.denyunknown.disabled = endis;
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}
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//-->
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</script>
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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"><?=$pgtitle?></p>
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<form action="services_dhcp.php" method="post" name="iform" id="iform">
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<?php if ($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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<?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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<?php
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/* active tabs */
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$tab_array = array();
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$tabscounter = 0;
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$i = 0;
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foreach ($iflist as $ifent => $ifname) {
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if ($ifent == $if)
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$active = true;
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else
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$active = false;
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$tab_array[] = array($ifname, $active, "services_dhcp.php?if={$ifent}");
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}
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display_top_tabs($tab_array);
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?>
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</td></tr>
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<tr>
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<td>
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<div id="mainarea">
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<table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0">
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<tr>
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<td width="22%" valign="top" class="vtable"> </td>
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<td width="78%" class="vtable">
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<input name="enable" type="checkbox" value="yes" <?php if ($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" id="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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<?php if($is_olsr_enabled): ?>
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<tr>
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<td width="22%" valign="top" class="vncellreq">Subnet Mask</td>
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<td width="78%" class="vtable">
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<select name="netmask" class="formfld" id="netmask">
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<?php
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for ($i = 32; $i > 0; $i--) {
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if($i <> 31) {
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echo "<option value=\"{$i}\" ";
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if ($i == $pconfig['subnet']) echo "selected";
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echo ">" . $i . "</option>";
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}
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}
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?>
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</select>
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</td>
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</tr>
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<?php endif; ?>
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<tr>
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<td width="22%" valign="top" class="vncellreq">Range</td>
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<td width="78%" class="vtable">
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<input name="range_from" type="text" class="formfld" id="range_from" size="20" value="<?=htmlspecialchars($pconfig['range_from']);?>">
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331
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to <input name="range_to" type="text" class="formfld" id="range_to" size="20" value="<?=htmlspecialchars($pconfig['range_to']);?>">
|
|
332
|
</td>
|
|
333
|
</tr>
|
|
334
|
<tr>
|
|
335
|
<td width="22%" valign="top" class="vncell">WINS servers</td>
|
|
336
|
<td width="78%" class="vtable">
|
|
337
|
<input name="wins1" type="text" class="formfld" id="wins1" size="20" value="<?=htmlspecialchars($pconfig['wins1']);?>"><br>
|
|
338
|
<input name="wins2" type="text" class="formfld" id="wins2" size="20" value="<?=htmlspecialchars($pconfig['wins2']);?>">
|
|
339
|
</td>
|
|
340
|
</tr>
|
|
341
|
<tr>
|
|
342
|
<td width="22%" valign="top" class="vncell">DNS servers</td>
|
|
343
|
<td width="78%" class="vtable">
|
|
344
|
<input name="dns1" type="text" class="formfld" id="dns1" size="20" value="<?=htmlspecialchars($pconfig['dns1']);?>"><br>
|
|
345
|
<input name="dns2" type="text" class="formfld" id="dns2" size="20" value="<?=htmlspecialchars($pconfig['dns2']);?>"><br>
|
|
346
|
NOTE: leave blank to use the system default DNS servers. This option is handy when your doing CARP+DHCP Failover, etc.
|
|
347
|
</td>
|
|
348
|
</tr>
|
|
349
|
<tr>
|
|
350
|
<td width="22%" valign="top" class="vncell">Gateway</td>
|
|
351
|
<td width="78%" class="vtable">
|
|
352
|
<input name="gateway" type="text" class="formfld" id="gateway" size="20" value="<?=htmlspecialchars($pconfig['gateway']);?>"><br>
|
|
353
|
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.
|
|
354
|
</td>
|
|
355
|
</tr>
|
|
356
|
<tr>
|
|
357
|
<td width="22%" valign="top" class="vncell">Default lease
|
|
358
|
time</td>
|
|
359
|
<td width="78%" class="vtable">
|
|
360
|
<input name="deftime" type="text" class="formfld" id="deftime" size="10" value="<?=htmlspecialchars($pconfig['deftime']);?>">
|
|
361
|
seconds<br>
|
|
362
|
This is used for clients that do not ask for a specific
|
|
363
|
expiration time.<br>
|
|
364
|
The default is 7200 seconds.
|
|
365
|
</td>
|
|
366
|
</tr>
|
|
367
|
<tr>
|
|
368
|
<td width="22%" valign="top" class="vncell">Maximum lease
|
|
369
|
time</td>
|
|
370
|
<td width="78%" class="vtable">
|
|
371
|
<input name="maxtime" type="text" class="formfld" id="maxtime" size="10" value="<?=htmlspecialchars($pconfig['maxtime']);?>">
|
|
372
|
seconds<br>
|
|
373
|
This is the maximum lease time for clients that ask
|
|
374
|
for a specific expiration time.<br>
|
|
375
|
The default is 86400 seconds.
|
|
376
|
</td>
|
|
377
|
</tr>
|
|
378
|
<tr>
|
|
379
|
<td width="22%" valign="top" class="vncell">Failover peer IP:</td>
|
|
380
|
<td width="78%" class="vtable">
|
|
381
|
<input name="failover_peerip" type="text" class="formfld" id="failover_peerip" size="10" value="<?=htmlspecialchars($pconfig['failover_peerip']);?>"><br>
|
|
382
|
Leave blank to disable. Enter the REAL address of the other machine. Machines must be using CARP.
|
|
383
|
</td>
|
|
384
|
</tr>
|
|
385
|
<tr>
|
|
386
|
<td width="22%" valign="top" class="vncell">Static ARP</td>
|
|
387
|
<td width="78%" class="vtable">
|
|
388
|
<table>
|
|
389
|
<tr>
|
|
390
|
<td>
|
|
391
|
<input valign="middle" type="checkbox" value="yes" name="staticarp" id="staticarp" <?php if($pconfig['staticarp']) echo " checked"; ?>>
|
|
392
|
</td>
|
|
393
|
<td>
|
|
394
|
<b>Enable Static ARP entries</b>
|
|
395
|
</td>
|
|
396
|
</tr>
|
|
397
|
<tr>
|
|
398
|
<td>
|
|
399
|
|
|
400
|
</td>
|
|
401
|
<td>
|
|
402
|
<span class="red"><strong>Note:</strong></span> Only the machines listed below will be able to communicate with the firewall on this NIC.
|
|
403
|
</td>
|
|
404
|
</tr>
|
|
405
|
</table>
|
|
406
|
</td>
|
|
407
|
</tr>
|
|
408
|
<tr>
|
|
409
|
<td width="22%" valign="top"> </td>
|
|
410
|
<td width="78%">
|
|
411
|
<input name="if" type="hidden" value="<?=$if;?>">
|
|
412
|
<input name="Submit" type="submit" class="formbtn" value="Save" onclick="enable_change(true)">
|
|
413
|
</td>
|
|
414
|
</tr>
|
|
415
|
<tr>
|
|
416
|
<td width="22%" valign="top"> </td>
|
|
417
|
<td width="78%"> <p><span class="vexpl"><span class="red"><strong>Note:<br>
|
|
418
|
</strong></span>The DNS servers entered in <a href="system.php">System:
|
|
419
|
General setup</a> (or the <a href="services_dnsmasq.php">DNS
|
|
420
|
forwarder</a>, if enabled) </span><span class="vexpl">will
|
|
421
|
be assigned to clients by the DHCP server.<br>
|
|
422
|
<br>
|
|
423
|
The DHCP lease table can be viewed on the <a href="diag_dhcp_leases.php">Diagnostics:
|
|
424
|
DHCP leases</a> page.<br>
|
|
425
|
</span></p>
|
|
426
|
</td>
|
|
427
|
</tr>
|
|
428
|
</table>
|
|
429
|
<table class="tabcont" width="100%" border="0" cellpadding="0" cellspacing="0">
|
|
430
|
<tr>
|
|
431
|
<td width="35%" class="listhdrr">MAC address</td>
|
|
432
|
<td width="20%" class="listhdrr">IP address</td>
|
|
433
|
<td width="35%" class="listhdr">Description</td>
|
|
434
|
<td width="10%" class="list">
|
|
435
|
</td>
|
|
436
|
</tr>
|
|
437
|
<?php if(is_array($a_maps)): ?>
|
|
438
|
<?php $i = 0; foreach ($a_maps as $mapent): ?>
|
|
439
|
<?php if($mapent['mac'] <> "" or $mapent['ipaddr'] <> ""): ?>
|
|
440
|
<tr>
|
|
441
|
<td class="listlr" ondblclick="document.location='services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>';">
|
|
442
|
<?=htmlspecialchars($mapent['mac']);?>
|
|
443
|
</td>
|
|
444
|
<td class="listr" ondblclick="document.location='services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>';">
|
|
445
|
<?=htmlspecialchars($mapent['ipaddr']);?>
|
|
446
|
</td>
|
|
447
|
<td class="listbg" ondblclick="document.location='services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>';">
|
|
448
|
<font color="#FFFFFF"><?=htmlspecialchars($mapent['descr']);?> </font>
|
|
449
|
</td>
|
|
450
|
<td valign="middle" nowrap class="list">
|
|
451
|
<table border="0" cellspacing="0" cellpadding="1">
|
|
452
|
<tr>
|
|
453
|
<td valign="middle"><a href="services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>"><img src="./themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" width="17" height="17" border="0"></a></td>
|
|
454
|
<td valign="middle"><a href="services_dhcp.php?if=<?=$if;?>&act=del&id=<?=$i;?>" onclick="return confirm('Do you really want to delete this mapping?')"><img src="./themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" border="0"></a></td>
|
|
455
|
</tr>
|
|
456
|
</table>
|
|
457
|
</td>
|
|
458
|
</tr>
|
|
459
|
<?php endif; ?>
|
|
460
|
<?php $i++; endforeach; ?>
|
|
461
|
<?php endif; ?>
|
|
462
|
<tr>
|
|
463
|
<td class="list" colspan="3"></td>
|
|
464
|
<td class="list">
|
|
465
|
<table border="0" cellspacing="0" cellpadding="1">
|
|
466
|
<tr>
|
|
467
|
<td valign="middle"><a href="services_dhcp_edit.php?if=<?=$if;?>"><img src="./themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0"></a></td>
|
|
468
|
</tr>
|
|
469
|
</table>
|
|
470
|
</td>
|
|
471
|
</tr>
|
|
472
|
</table>
|
|
473
|
</div>
|
|
474
|
</td>
|
|
475
|
</tr>
|
|
476
|
</table>
|
|
477
|
</form>
|
|
478
|
<script language="JavaScript">
|
|
479
|
<!--
|
|
480
|
enable_change(false);
|
|
481
|
//-->
|
|
482
|
</script>
|
|
483
|
<?php include("fend.inc"); ?>
|
|
484
|
</body>
|
|
485
|
</html>
|