#!/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.
*/
$pgtitle = array("Services", "DHCP server");
require("guiconfig.inc");
list($dnsconfig['dns1'],$dnsconfig['dns2'],$dnsconfig['dns3']) = $config['system']['dnsserver'];
$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']);
$pconfig['nextserver'] = $config['dhcpd'][$if]['next-server'];
$pconfig['filename'] = $config['dhcpd'][$if]['filename'];
if (ipv6enabled()) {
$pconfig['v6range_from'] = $config['dhcpd'][$if]['v6range']['from'];
$pconfig['v6range_to'] = $config['dhcpd'][$if]['v6range']['to'];
if (!$config['dhcpd'][$if]['v6defaultleasetime']) {
$pconfig['v6deftime'] = 7200;
} else {
$pconfig['v6deftime'] = $config['dhcpd'][$if]['v6defaultleasetime'];
}
if (!$config['dhcpd'][$if]['v6maxleasetime']) {
$pconfig['v6maxtime'] = 86400;
} else {
$pconfig['v6maxtime'] = $config['dhcpd'][$if]['v6maxleasetime'];
}
$pconfig['v6enable'] = isset($config['dhcpd'][$if]['v6enable']);
}
$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_numericint($_POST['deftime']))) {
$input_errors[] = "The default lease time must be an integer.";
}
if ($_POST['maxtime'] && (!is_numericint($_POST['maxtime']) || ($_POST['maxtime'] <= $_POST['deftime']))) {
$input_errors[] = "The maximum lease time must be higher than the default lease time.";
}
if ($_POST['nextserver'] && !is_ipaddr($_POST['nextserver'])) {
$input_errors[] = "A valid next server IP address must be specified.";
}
if (ipv6enabled() && $pconfig['v6enable']) {
if (!is_ipaddr6($_POST['v6range_from'])) {
$input_errors[] = "A valid IPv6 range must be specified.";
} else if (ipv6Uncompress($_POST['v6range_from']) == ipv6Uncompress(gen_subnet6($ifcfg['ipaddr6'], $ifcfg['subnet6']))) {
$input_errors[] = "You cannot use the subnet address as a 'from' address.";
}
if (!is_ipaddr6($_POST['v6range_to'])) {
$input_errors[] = "A valid IPv6 range must be specified.";
} else if (ipv6Uncompress($_POST['v6range_to']) == ipv6Uncompress(gen_subnet_max6($ifcfg['ipaddr6'], $ifcfg['subnet6']))) {
$input_errors[] = "You cannot use the broadcast address as a 'to' address.";
}
if ($_POST['v6range_from'] == $_POST['v6range_to']) {
$input_errors[] = "IPv6 from and to are the same.";
}
if ($_POST['v6deftime'] && (!is_numericint($_POST['v6deftime']))) {
$input_errors[] = "The default IPv6 lease time must be an integer.";
}
if ($_POST['v6maxtime'] && (!is_numericint($_POST['v6maxtime']) || ($_POST['v6maxtime'] <= $_POST['v6deftime']))) {
$input_errors[] = "The maximum IPv6 lease time must be higher than the default IPv6 lease time.";
}
}
if (!isset($config['dnsmasq']['enable'])) {
if (ipv6enabled() && $pconfig['v6enable'] && (!is_ipaddr6($dnsconfig['dns1']) && !is_ipaddr6($dnsconfig['dns2']) && !is_ipaddr6($dnsconfig['dns3']))) {
$input_errors[] = "DNS forwarder is disabled and you have no IPv6 DNS servers set, DHCPv6 may not have a valid IPv6 DNS setting to give clients.";
}
if ($pconfig['enable'] && (!is_ipaddr($dnsconfig['dns1']) && !is_ipaddr($dnsconfig['dns2']) && !is_ipaddr($dnsconfig['dns3']))) {
$input_errors[] = "DNS forwarder is disabled and you have no IPv4 DNS servers set, DHCP may not have a valid IPv4 DNS setting to give clients.";
}
}
if (!$input_errors) {
$input_errors = array_merge($input_errors, check_dhcp_range($ifcfg['ipaddr'], $ifcfg['subnet'], $_POST['range_from'], $_POST['range_to']));
if (ipv6enabled() && $pconfig['v6enable'])
$input_errors = array_merge($input_errors, check_v6dhcp_range($ifcfg['ipaddr6'], $ifcfg['subnet6'], $_POST['v6range_from'], $_POST['v6range_to']));
/* make sure that the DHCP Relay isn't enabled on this interface */
if (isset($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;
$config['dhcpd'][$if]['next-server'] = $_POST['nextserver'];
$config['dhcpd'][$if]['filename'] = $_POST['filename'];
if (ipv6enabled()) {
$config['dhcpd'][$if]['v6range']['from'] = $_POST['v6range_from'];
$config['dhcpd'][$if]['v6range']['to'] = $_POST['v6range_to'];
$config['dhcpd'][$if]['v6defaultleasetime'] = $_POST['v6deftime'];
$config['dhcpd'][$if]['v6maxleasetime'] = $_POST['v6maxtime'];
$config['dhcpd'][$if]['v6enable'] = $_POST['v6enable'] ? true : false;
}
unset($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();
$retval .= services_dhcp6s_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;
}
}
?>