#!/usr/local/bin/php
.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
require("guiconfig.inc");
$if = $_GET['if'];
if ($_POST['if'])
$if = $_POST['if'];
$iflist = array("lan" => "LAN");
for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
$oc = $config['interfaces']['opt' . $i];
if (isset($oc['enable']) && $oc['if'] && (!$oc['bridge'])) {
$iflist['opt' . $i] = $oc['descr'];
}
}
if (!$if || !isset($iflist[$if]))
$if = "lan";
$pconfig['range_from'] = $config['dhcpd'][$if]['range']['from'];
$pconfig['range_to'] = $config['dhcpd'][$if]['range']['to'];
$pconfig['deftime'] = $config['dhcpd'][$if]['defaultleasetime'];
$pconfig['maxtime'] = $config['dhcpd'][$if]['maxleasetime'];
list($pconfig['wins1'],$pconfig['wins2']) = $config['dhcpd'][$if]['winsserver'];
$pconfig['enable'] = isset($config['dhcpd'][$if]['enable']);
$pconfig['denyunknown'] = isset($config['dhcpd'][$if]['denyunknown']);
$ifcfg = $config['interfaces'][$if];
if (!is_array($config['dhcpd'][$if]['staticmap'])) {
$config['dhcpd'][$if]['staticmap'] = array();
}
staticmaps_sort($if);
$a_maps = &$config['dhcpd'][$if]['staticmap'];
if ($_POST) {
unset($input_errors);
$pconfig = $_POST;
/* input validation */
if ($_POST['enable']) {
$reqdfields = explode(" ", "range_from range_to");
$reqdfieldsn = explode(",", "Range begin,Range end");
do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
if (($_POST['range_from'] && !is_ipaddr($_POST['range_from']))) {
$input_errors[] = "A valid range must be specified.";
}
if (($_POST['range_to'] && !is_ipaddr($_POST['range_to']))) {
$input_errors[] = "A valid range must be specified.";
}
if (($_POST['wins1'] && !is_ipaddr($_POST['wins1'])) || ($_POST['wins2'] && !is_ipaddr($_POST['wins2']))) {
$input_errors[] = "A valid IP address must be specified for the primary/secondary WINS server.";
}
if ($_POST['deftime'] && (!is_numeric($_POST['deftime']) || ($_POST['deftime'] < 60))) {
$input_errors[] = "The default lease time must be at least 60 seconds.";
}
if ($_POST['maxtime'] && (!is_numeric($_POST['maxtime']) || ($_POST['maxtime'] < 60) || ($_POST['maxtime'] <= $_POST['deftime']))) {
$input_errors[] = "The maximum lease time must be at least 60 seconds and higher than the default lease time.";
}
if (!$input_errors) {
/* make sure the range lies within the current subnet */
$subnet_start = (ip2long($ifcfg['ipaddr']) & gen_subnet_mask_long($ifcfg['subnet']));
$subnet_end = (ip2long($ifcfg['ipaddr']) | (~gen_subnet_mask_long($ifcfg['subnet'])));
if ((ip2long($_POST['range_from']) < $subnet_start) || (ip2long($_POST['range_from']) > $subnet_end) ||
(ip2long($_POST['range_to']) < $subnet_start) || (ip2long($_POST['range_to']) > $subnet_end)) {
$input_errors[] = "The specified range lies outside of the current subnet.";
}
if (ip2long($_POST['range_from']) > ip2long($_POST['range_to']))
$input_errors[] = "The range is invalid (first element higher than second element).";
/* make sure that the DHCP Relay isn't enabled on this interface */
if (isset($config['dhcrelay'][$if]['enable']))
$input_errors[] = "You must disable the DHCP relay on the {$iflist[$if]} interface before enabling the DHCP server.";
}
}
if (!$input_errors) {
$config['dhcpd'][$if]['range']['from'] = $_POST['range_from'];
$config['dhcpd'][$if]['range']['to'] = $_POST['range_to'];
$config['dhcpd'][$if]['defaultleasetime'] = $_POST['deftime'];
$config['dhcpd'][$if]['maxleasetime'] = $_POST['maxtime'];
$config['dhcpd'][$if]['enable'] = $_POST['enable'] ? true : false;
$config['dhcpd'][$if]['denyunknown'] = $_POST['denyunknown'] ? true : false;
unset($config['dhcpd'][$if]['winsserver']);
if ($_POST['wins1'])
$config['dhcpd'][$if]['winsserver'][] = $_POST['wins1'];
if ($_POST['wins2'])
$config['dhcpd'][$if]['winsserver'][] = $_POST['wins2'];
write_config();
$retval = 0;
if (!file_exists($d_sysrebootreqd_path)) {
config_lock();
$retval = services_dhcpd_configure();
config_unlock();
}
$savemsg = get_std_save_message($retval);
if ($retval == 0) {
if (file_exists($d_staticmapsdirty_path))
unlink($d_staticmapsdirty_path);
}
}
}
if ($_GET['act'] == "del") {
if ($a_maps[$_GET['id']]) {
unset($a_maps[$_GET['id']]);
write_config();
touch($d_staticmapsdirty_path);
header("Location: services_dhcp.php?if={$if}");
exit;
}
}
?>
<?=gentitle("Services: DHCP server");?>