core/src/www/services_dnsmasq.php
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2018-01-22 19:13:34 +01:00

534 lines
27 KiB
PHP

<?php
/*
Copyright (C) 2014-2016 Deciso B.V.
Copyright (C) 2003-2004 Bob Zoller <bob@kludgebox.com>
Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>
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_once("guiconfig.inc");
require_once("interfaces.inc");
require_once("filter.inc");
require_once("services.inc");
require_once("system.inc");
config_read_array('dnsmasq', 'hosts');
config_read_array('dnsmasq', 'domainoverrides');
if ($_SERVER['REQUEST_METHOD'] === 'GET') {
$pconfig = array();
// booleans
$pconfig['enable'] = isset($config['dnsmasq']['enable']);
$pconfig['regdhcp'] = isset($config['dnsmasq']['regdhcp']);
$pconfig['regdhcpdomain'] = !empty($config['dnsmasq']['regdhcpdomain']) ? $config['dnsmasq']['regdhcpdomain'] : null;
$pconfig['regdhcpstatic'] = isset($config['dnsmasq']['regdhcpstatic']);
$pconfig['dhcpfirst'] = isset($config['dnsmasq']['dhcpfirst']);
$pconfig['strict_order'] = isset($config['dnsmasq']['strict_order']);
$pconfig['domain_needed'] = isset($config['dnsmasq']['domain_needed']);
$pconfig['no_private_reverse'] = isset($config['dnsmasq']['no_private_reverse']);
$pconfig['strictbind'] = isset($config['dnsmasq']['strictbind']);
// simple text types
$pconfig['port'] = !empty($config['dnsmasq']['port']) ? $config['dnsmasq']['port'] : "";
$pconfig['custom_options'] = !empty($config['dnsmasq']['custom_options']) ? $config['dnsmasq']['custom_options'] : "";
// arrays
$pconfig['interface'] = !empty($config['dnsmasq']['interface']) ? explode(",", $config['dnsmasq']['interface']) : array();
} elseif ($_SERVER['REQUEST_METHOD'] === 'POST') {
$pconfig = $_POST;
$input_errors = array();
if (isset($pconfig['submit'])) {
// validate
if (!empty($pconfig['regdhcpdomain']) && !is_domain($pconfig['regdhcpdomain'])) {
$input_errors[] = gettext("The domain may only contain the characters a-z, 0-9, '-' and '.'.");
}
if (!empty($pconfig['port']) && !is_port($pconfig['port'])) {
$input_errors[] = gettext("You must specify a valid port number");
}
$unbound_port = empty($config['unbound']['port']) ? "53" : $config['unbound']['port'];
$dnsmasq_port = empty($pconfig['port']) ? "53" : $pconfig['port'];
if (!empty($pconfig['enable']) && isset($config['unbound']['enable']) && $dnsmasq_port == $unbound_port) {
$input_errors[] = gettext("The DNS Resolver is still active. Disable it before enabling the DNS Forwarder.");
}
if (!empty($pconfig['custom_options'])) {
$args = '';
foreach (preg_split('/\s+/', str_replace("\r\n", "\n", $pconfig['custom_options'])) as $c) {
$args .= escapeshellarg("--{$c}") . " ";
}
exec("/usr/local/sbin/dnsmasq --test $args", $output, $rc);
if ($rc != 0) {
$input_errors[] = gettext("Invalid custom options");
}
}
if (count($input_errors) == 0) {
// save form
$config['dnsmasq']['enable'] = !empty($pconfig['enable']);
$config['dnsmasq']['regdhcp'] = !empty($pconfig['regdhcp']);
$config['dnsmasq']['regdhcpstatic'] = !empty($pconfig['regdhcpstatic']);
$config['dnsmasq']['dhcpfirst'] = !empty($pconfig['dhcpfirst']);
$config['dnsmasq']['strict_order'] = !empty($pconfig['strict_order']);
$config['dnsmasq']['domain_needed'] = !empty($pconfig['domain_needed']);
$config['dnsmasq']['no_private_reverse'] = !empty($pconfig['no_private_reverse']);
$config['dnsmasq']['strictbind'] = !empty($pconfig['strictbind']);
if (!empty($pconfig['regdhcpdomain'])) {
$config['dnsmasq']['regdhcpdomain'] = $pconfig['regdhcpdomain'];
} elseif (isset($config['dnsmasq']['regdhcpdomain'])) {
unset($config['dnsmasq']['regdhcpdomain']);
}
if (!empty($pconfig['interface'])) {
$config['dnsmasq']['interface'] = implode(",", $pconfig['interface']);
} elseif (isset($config['dnsmasq']['interface'])) {
unset($config['dnsmasq']['interface']);
}
if (!empty($pconfig['port'])) {
$config['dnsmasq']['port'] = $pconfig['port'];
} elseif (isset($config['dnsmasq']['port'])) {
unset($config['dnsmasq']['port']);
}
if (!empty($pconfig['custom_options'])) {
$config['dnsmasq']['custom_options'] = str_replace("\r\n", "\n", $pconfig['custom_options']);
} elseif (isset($config['dnsmasq']['custom_options'])) {
unset($config['dnsmasq']['custom_options']);
}
write_config();
dnsmasq_configure_do();
services_dhcpd_configure();
header(url_safe('Location: /services_dnsmasq.php'));
exit;
}
} elseif (isset($pconfig['apply'])) {
filter_configure();
system_resolvconf_generate();
system_hosts_generate();
dnsmasq_configure_do();
services_dhcpd_configure();
clear_subsystem_dirty('hosts');
header(url_safe('Location: /services_dnsmasq.php'));
exit;
} elseif (!empty($pconfig['act']) && $pconfig['act'] == 'del') {
$a_hosts = &config_read_array('dnsmasq', 'hosts');
if (isset($pconfig['id']) && !empty($a_hosts[$pconfig['id']])) {
unset($a_hosts[$pconfig['id']]);
write_config();
mark_subsystem_dirty('hosts');
exit;
}
} elseif (!empty($pconfig['act']) && $pconfig['act'] == 'doverride') {
$a_domainOverrides = &config_read_array('dnsmasq', 'domainoverrides');
if (isset($pconfig['id']) && !empty($a_domainOverrides[$pconfig['id']])) {
unset($a_domainOverrides[$pconfig['id']]);
write_config();
mark_subsystem_dirty('hosts');
exit;
}
}
}
legacy_html_escape_form_data($pconfig);
$service_hook = 'dnsmasq';
include("head.inc");
?>
<body>
<script>
//<![CDATA[
$( document ).ready(function() {
$("#show_advanced_dns").click(function(event){
$("#showadvbox").hide();
$("#showadv").show();
});
if ($("#custom_options").val() != "") {
$("#show_advanced_dns").click();
}
// delete host action
$(".act_delete_host").click(function(event){
event.preventDefault();
var id = $(this).data("id");
// delete single
BootstrapDialog.show({
type:BootstrapDialog.TYPE_DANGER,
title: "<?= gettext("DNS Forwarder");?>",
message: "<?=gettext("Do you really want to delete this host?");?>",
buttons: [{
label: "<?= gettext("No");?>",
action: function(dialogRef) {
dialogRef.close();
}}, {
label: "<?= gettext("Yes");?>",
action: function(dialogRef) {
$.post(window.location, {act: 'del', id:id}, function(data) {
location.reload();
});
}
}]
});
});
$(".act_delete_override").click(function(event){
event.preventDefault();
var id = $(this).data("id");
// delete single
BootstrapDialog.show({
type:BootstrapDialog.TYPE_DANGER,
title: "<?= gettext("DNS Forwarder");?>",
message: "<?=gettext("Do you really want to delete this domain override?");?>",
buttons: [{
label: "<?= gettext("No");?>",
action: function(dialogRef) {
dialogRef.close();
}}, {
label: "<?= gettext("Yes");?>",
action: function(dialogRef) {
$.post(window.location, {act: 'doverride', id:id}, function(data) {
location.reload();
});
}
}]
});
});
});
//]]>
</script>
<?php include("fbegin.inc"); ?>
<section class="page-content-main">
<div class="container-fluid">
<div class="row">
<?php if (isset($input_errors) && count($input_errors) > 0) print_input_errors($input_errors); ?>
<?php if (isset($savemsg)) print_info_box($savemsg); ?>
<?php if (is_subsystem_dirty('hosts')): ?><br/>
<?php print_info_box_apply(gettext("The DNS forwarder configuration has been changed.") . "<br />" . gettext("You must apply the changes in order for them to take effect."));?><br />
<?php endif; ?>
<section class="col-xs-12">
<div class="content-box">
<form method="post" name="iform" id="iform">
<div class="table-responsive">
<table class="table table-striped opnsense_standard_table_form">
<tr>
<td style="vertical-align:top"><strong><?=gettext("General DNS Forwarder Options");?></strong></td>
<td style="text-align:right">
<small><?=gettext("full help");?> </small>
<i class="fa fa-toggle-off text-danger" style="cursor: pointer;" id="show_all_help_page"></i>
</td>
</tr>
<tr>
<td style="width:22%"><i class="fa fa-info-circle text-muted"></i> <?=gettext("Enable");?></td>
<td style="width:78%">
<input name="enable" type="checkbox" id="enable" value="yes" <?=!empty($pconfig['enable']) ? "checked=\"checked\"" : "";?> />
<strong><?=gettext("Enable DNS Forwarder");?></strong>
</td>
</tr>
<tr>
<td><a id="help_for_regdhcp" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("DHCP Registration");?></td>
<td>
<input name="regdhcp" type="checkbox" id="regdhcp" value="yes" <?=!empty($pconfig['regdhcp']) ? "checked=\"checked\"" : "";?> />
<strong><?=gettext("Register DHCP leases in DNS forwarder");?></strong>
<output class="hidden" for="help_for_regdhcp">
<?= gettext("If this option is set, then machines that specify " .
"their hostname when requesting a DHCP lease will be registered " .
"in the DNS forwarder, so that their name can be resolved.") ?>
</output>
</td>
</tr>
<tr>
<td><a id="help_for_regdhcpdomain" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("DHCP Domain Override");?></td>
<td>
<input name="regdhcpdomain" type="text" id="regdhcpdomain" value="<?= $pconfig['regdhcpdomain'] ?>"/>
<output class="hidden" for="help_for_regdhcpdomain">
<?= gettext("The domain name to use for DHCP hostname registration. " .
"If empty, the default system domain is used. Note that all DHCP " .
"leases will be assigned to the same domain. If this is undesired, " .
"static DHCP lease registration is able to provide coherent mappings.") ?>
</output>
</td>
</tr>
<tr>
<td><a id="help_for_regdhcpstatic" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Static DHCP");?></td>
<td>
<input name="regdhcpstatic" type="checkbox" id="regdhcpstatic" value="yes" <?=!empty($pconfig['regdhcpstatic']) ? "checked=\"checked\"" : "";?> />
<strong><?=gettext("Register DHCP static mappings in DNS forwarder");?></strong>
<output class="hidden" for="help_for_regdhcpstatic">
<?= sprintf(gettext("If this option is set, then DHCP static mappings will ".
"be registered in the DNS forwarder, so that their name can be ".
"resolved. You should also set the domain in %s".
"System: General setup%s to the proper value."),'<a href="system_general.php">','</a>');?>
</output>
</td>
</tr>
<tr>
<td><a id="help_for_dhcpfirst" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Prefer DHCP");?></td>
<td>
<input name="dhcpfirst" type="checkbox" id="dhcpfirst" value="yes" <?=!empty($pconfig['dhcpfirst']) ? "checked=\"checked\"" : "";?> />
<strong><?=gettext("Resolve DHCP mappings first");?></strong>
<output class="hidden" for="help_for_dhcpfirst">
<?= sprintf(gettext("If this option is set, then DHCP mappings will ".
"be resolved before the manual list of names below. This only ".
"affects the name given for a reverse lookup (PTR)."));?>
</output>
</td>
</tr>
<tr>
<td><a id="help_for_strict_order" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("DNS Query Forwarding");?></td>
<td>
<table class="table table-striped table-condensed">
<tr>
<td>
<input name="strict_order" type="checkbox" id="strict_order" value="yes" <?=!empty($pconfig['strict_order']) ? "checked=\"checked\"" : "";?> />
<strong><?=gettext("Query DNS servers sequentially");?></strong>
<output class="hidden" for="help_for_strict_order">
<?= gettext("If this option is set, the DNS Forwarder (dnsmasq) will ".
"query the DNS servers sequentially in the order specified (System: " .
"General Setup: DNS Servers), rather than all at once in parallel.") ?>
</output>
</td>
</tr>
<tr>
<td>
<input name="domain_needed" type="checkbox" id="domain_needed" value="yes" <?=!empty($pconfig['domain_needed']) ? "checked=\"checked\"" : "";?> />
<strong><?=gettext("Require domain");?></strong>
<output class="hidden" for="help_for_strict_order">
<?= gettext('If this option is set, the DNS Forwarder (dnsmasq) will '.
'not forward A or AAAA queries for plain names, without dots or ' .
'domain parts, to upstream name servers. If the name is not known ' .
'from /etc/hosts or DHCP then a "not found" answer is returned.') ?>
</output>
</td>
</tr>
<tr>
<td>
<input name="no_private_reverse" type="checkbox" id="no_private_reverse" value="yes" <?=!empty($pconfig['no_private_reverse']) ? "checked=\"checked\"" : "";?> />
<strong><?=gettext("Do not forward private reverse lookups");?></strong>
<output class="hidden" for="help_for_strict_order">
<?= gettext('If this option is set, the DNS Forwarder (dnsmasq) will '.
'not forward reverse DNS lookups (PTR) for private addresses ' .
'(RFC 1918) to upstream name servers. Any entries in the Domain ' .
'Overrides section forwarding private "n.n.n.in-addr.arpa" names ' .
'to a specific server are still forwarded. If the IP to name is ' .
'not known from /etc/hosts, DHCP or a specific domain override ' .
'then a "not found" answer is immediately returned.') ?>
</output>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td><a id="help_for_port" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Listen Port");?></td>
<td>
<input name="port" type="text" id="port" size="6" <?=!empty($pconfig['port']) ? "value=\"{$pconfig['port']}\"" : "";?> />
<output class="hidden" for="help_for_port">
<?=gettext("The port used for responding to DNS queries. It should normally be left blank unless another service needs to bind to TCP/UDP port 53.");?>
</output>
</td>
</tr>
<tr>
<td><a id="help_for_interfaces" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Interfaces"); ?></td>
<td>
<select id="interface" name="interface[]" multiple="multiple" class="selectpicker">
<option value="" <?=empty($pconfig['interface'][0]) ? 'selected="selected"' : ""; ?>>
<?=gettext("All");?>
</option>
<?php
foreach (get_possible_listen_ips(true) as $laddr):?>
<option value="<?=$laddr['value'];?>" <?=in_array($laddr['value'], $pconfig['interface']) ? 'selected="selected"' : "";?>>
<?=htmlspecialchars($laddr['name']);?>
</option>
<?php
endforeach; ?>
</select>
<output class="hidden" for="help_for_interfaces">
<?=gettext("Interface IPs used by the DNS Forwarder for responding to queries from clients. If an interface has both IPv4 and IPv6 IPs, both are used. Queries to other interface IPs not selected below are discarded. The default behavior is to respond to queries on every available IPv4 and IPv6 address.");?>
</output>
<br/>
<input name="strictbind" type="checkbox" id="strictbind" value="yes" <?= !empty($pconfig['strictbind']) ? "checked=\"checked\"" : "";?> />
<strong><?=gettext("Strict Interface Binding");?></strong>
<output class="hidden" for="help_for_interfaces">
<?= gettext("If this option is set, the DNS forwarder will only bind to the interfaces containing the IP addresses selected above, rather than binding to all interfaces and discarding queries to other addresses."); ?>
<br /><br />
<?= gettext("NOTE: This option does NOT work with IPv6. If set, dnsmasq will not bind to IPv6 addresses."); ?>
</output>
</td>
</tr>
<tr>
<td><i class="fa fa-info-circle text-muted"></i> <?=gettext("Advanced");?></td>
<td>
<div id="showadvbox" <?=!empty($pconfig['custom_options']) ? "style='display:none'" : ""; ?>>
<input type="button" class="btn btn-default btn-xs" id="show_advanced_dns" value="<?=gettext("Advanced"); ?>" /> - <?=gettext("Show advanced option");?>
</div>
<div id="showadv" <?=empty($pconfig['custom_options']) ? "style='display:none'" : ""; ?>>
<strong><?=gettext("Advanced");?><br /></strong>
<textarea rows="6" cols="78" name="custom_options" id="custom_options"><?=$pconfig['custom_options'];?></textarea><br />
<?=gettext("Enter any additional options you would like to add to the dnsmasq configuration here, separated by a space or newline"); ?>
</div>
</td>
</tr>
<tr>
<td></td>
<td>
<input name="submit" type="submit" class="btn btn-primary" value="<?=gettext("Save"); ?>" />
</td>
</tr>
<tr>
<td colspan="2">
<?= sprintf(gettext("If the DNS forwarder is enabled, the DHCP".
" service (if enabled) will automatically serve the LAN IP".
" address as a DNS server to DHCP clients so they will use".
" the forwarder. The DNS forwarder will use the DNS servers".
" entered in %sSystem: General setup%s".
" or those obtained via DHCP or PPP on WAN if the \"Allow".
" DNS server list to be overridden by DHCP/PPP on WAN\"".
" is checked. If you don't use that option (or if you use".
" a static IP address on WAN), you must manually specify at".
" least one DNS server on the %sSystem: General setup%s page."),
'<a href="system_general.php">','</a>','<a href="system_general.php">','</a>');?>
</td>
</tr>
</table>
</div>
</form>
</div>
</section>
<section class="col-xs-12">
<div class="content-box content-box-main">
<div class="table-responsive">
<table class="table table-striped">
<thead>
<tr>
<th colspan="5"><?=gettext("Host Overrides");?></th>
</tr>
<tr>
<th><?=gettext("Host");?></th>
<th><?=gettext("Domain");?></th>
<th><?=gettext("IP");?></th>
<th><?=gettext("Description");?></th>
<th>
<a href="services_dnsmasq_edit.php" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-plus"></span></a>
</th>
</tr>
</thead>
<tbody>
<?php
$i = 0;
foreach ($config['dnsmasq']['hosts'] as $hostent): ?>
<tr>
<td><?=htmlspecialchars(strtolower($hostent['host']));?></td>
<td><?=htmlspecialchars(strtolower($hostent['domain']));?></td>
<td><?=htmlspecialchars($hostent['ip']);?></td>
<td><?=htmlspecialchars($hostent['descr']);?></td>
<td>
<a href="services_dnsmasq_edit.php?id=<?=$i;?>" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-pencil"></span></a>
<a href="#" data-id="<?=$i;?>" class="act_delete_host btn btn-xs btn-default"><i class="fa fa-trash text-muted"></i></a>
</td>
</tr>
<?php
if (isset($hostent['aliases']['item'])):
foreach ($hostent['aliases']['item'] as $alias): ?>
<tr>
<td><?=htmlspecialchars(strtolower($alias['host']));?></td>
<td><?=htmlspecialchars(strtolower($alias['domain']));?></td>
<td><?=gettext("Alias for");?> <?=$hostent['host'] ? htmlspecialchars($hostent['host'] . '.' . $hostent['domain']) : htmlspecialchars($hostent['domain']);?></td>
<td><?=htmlspecialchars($alias['description']);?></td>
<td>
<a href="services_dnsmasq_edit.php?id=<?=$i;?>" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-pencil"></span></a>
</td>
</tr>
<?php
endforeach;
endif; ?>
<?php
++$i;
endforeach;?>
</tbody>
<tfoot>
<tr>
<td colspan="5">
<?=gettext("Entries in this section override individual results from the forwarders.");?>
<?=gettext("Use these for changing DNS results or for adding custom DNS records.");?>
</td>
</tr>
</tfoot>
</table>
</div>
</div>
</section>
<section class="col-xs-12">
<div class="content-box content-box-main">
<div class="table-responsive">
<table class="table table-striped">
<thead>
<tr>
<th colspan="4"><?=gettext("Domain Overrides");?></th>
</tr>
<tr>
<th><?=gettext("Domain");?></th>
<th><?=gettext("IP");?></th>
<th><?=gettext("Description");?></th>
<th>
<a href="services_dnsmasq_domainoverride_edit.php" class="btn btn-default btn-xs">
<span class="glyphicon glyphicon-plus"></span>
</a>
</th>
</tr>
</thead>
<tbody>
<?php
$i = 0;
foreach ($config['dnsmasq']['domainoverrides'] as $doment): ?>
<tr>
<td><?=htmlspecialchars(strtolower($doment['domain']));?></td>
<td><?=htmlspecialchars($doment['ip']);?></td>
<td><?=htmlspecialchars($doment['descr']);?></td>
<td>
<a href="services_dnsmasq_domainoverride_edit.php?id=<?=$i;?>" class="btn btn-default btn-xs">
<span class="glyphicon glyphicon-pencil"></span>
</a>
<a href="#" data-id="<?=$i;?>" class="act_delete_override btn btn-xs btn-default"><i class="fa fa-trash text-muted"></i></a>
</td>
</tr>
<?php
$i++;
endforeach; ?>
</tbody>
<tfoot>
<tr>
<td colspan="4">
<?=gettext("Entries in this area override an entire domain, and subdomains, by specifying an authoritative DNS server to be queried for that domain.");?>
</td>
</tr>
</tfoot>
</table>
</div>
</div>
</section>
</div>
</div>
</section>
<?php include("foot.inc"); ?>