1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
|
#!/usr/local/bin/php
<?php
/*
services_dhcp.php
part of m0n0wall (http://m0n0.ch/wall)
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");
$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'];
$pconfig['gateway'] = $config['dhcpd'][$if]['gateway'];
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['gateway'] && !is_ipaddr($_POST['gateway'])))
$input_errors[] = "A valid IP address must be specified for the gateway.";
if (($_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'];
$config['dhcpd'][$if]['gateway'] = $_POST['gateway'];
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;
}
}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title><?=gentitle("Services: DHCP server");?></title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link href="gui.css" rel="stylesheet" type="text/css">
<script language="JavaScript">
<!--
function enable_change(enable_over) {
var endis;
endis = !(document.iform.enable.checked || enable_over);
document.iform.range_from.disabled = endis;
document.iform.range_to.disabled = endis;
document.iform.wins1.disabled = endis;
document.iform.wins2.disabled = endis;
document.iform.deftime.disabled = endis;
document.iform.maxtime.disabled = endis;
document.iform.gateway.disabled = endis;
}
//-->
</script>
</head>
<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<?php include_once("fbegin.inc"); ?>
<p class="pgtitle">Services: DHCP server</p>
<form action="services_dhcp.php" method="post" name="iform" id="iform">
<?php if ($input_errors) print_input_errors($input_errors); ?>
<?php if ($savemsg) print_info_box($savemsg); ?>
<?php if (file_exists($d_staticmapsdirty_path)): ?><p>
<?php print_info_box_np("The static mapping configuration has been changed.<br>You must apply the changes in order for them to take effect.");?><br>
<input name="apply" type="submit" class="formbtn" id="apply" value="Apply changes"></p>
<?php endif; ?>
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr><td>
<ul id="tabnav">
<?php foreach ($iflist as $ifent => $ifname):
if ($ifent == $if): ?>
<li class="tabact"><?=htmlspecialchars($ifname);?></li>
<?php else: ?>
<li class="tabinact"><a href="services_dhcp.php?if=<?=$ifent;?>"><?=htmlspecialchars($ifname);?></a></li>
<?php endif; ?>
<?php endforeach; ?>
</ul>
</td></tr>
<tr>
<td class="tabcont">
<table width="100%" border="0" cellpadding="6" cellspacing="0">
<tr>
<td width="22%" valign="top" class="vtable"> </td>
<td width="78%" class="vtable">
<input name="enable" type="checkbox" value="yes" <?php if ($pconfig['enable']) echo "checked"; ?> onClick="enable_change(false)">
<strong>Enable DHCP server on
<?=htmlspecialchars($iflist[$if]);?>
interface</strong></td>
</tr>
<tr>
<td width="22%" valign="top" class="vtable"> </td>
<td width="78%" class="vtable">
<input name="denyunknown" type="checkbox" value="yes" <?php if ($pconfig['denyunknown']) echo "checked"; ?>>
<strong>Deny unknown clients</strong><br>
If this is checked, only the clients defined below will get DHCP leases from this server. </td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq">Subnet</td>
<td width="78%" class="vtable">
<?=gen_subnet($ifcfg['ipaddr'], $ifcfg['subnet']);?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq">Subnet
mask</td>
<td width="78%" class="vtable">
<?=gen_subnet_mask($ifcfg['subnet']);?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq">Available
range</td>
<td width="78%" class="vtable">
<?=long2ip(ip2long($ifcfg['ipaddr']) & gen_subnet_mask_long($ifcfg['subnet']));?>
-
<?=long2ip(ip2long($ifcfg['ipaddr']) | (~gen_subnet_mask_long($ifcfg['subnet']))); ?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq">Range</td>
<td width="78%" class="vtable">
<input name="range_from" type="text" class="formfld" id="range_from" size="20" value="<?=htmlspecialchars($pconfig['range_from']);?>">
to <input name="range_to" type="text" class="formfld" id="range_to" size="20" value="<?=htmlspecialchars($pconfig['range_to']);?>"></td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell">WINS servers</td>
<td width="78%" class="vtable">
<input name="wins1" type="text" class="formfld" id="wins1" size="20" value="<?=htmlspecialchars($pconfig['wins1']);?>"><br>
<input name="wins2" type="text" class="formfld" id="wins2" size="20" value="<?=htmlspecialchars($pconfig['wins2']);?>"></td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell">Gateway</td>
<td width="78%" class="vtable">
<input name="gateway" type="text" class="formfld" id="gateway" size="20" value="<?=htmlspecialchars($pconfig['gateway']);?>"><br>
</tr>
<tr>
<td width="22%" valign="top" class="vncell">Default lease
time</td>
<td width="78%" class="vtable">
<input name="deftime" type="text" class="formfld" id="deftime" size="10" value="<?=htmlspecialchars($pconfig['deftime']);?>">
seconds<br>
This is used for clients that do not ask for a specific
expiration time.<br>
The default is 7200 seconds.</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell">Maximum lease
time</td>
<td width="78%" class="vtable">
<input name="maxtime" type="text" class="formfld" id="maxtime" size="10" value="<?=htmlspecialchars($pconfig['maxtime']);?>">
seconds<br>
This is the maximum lease time for clients that ask
for a specific expiration time.<br>
The default is 86400 seconds.</td>
</tr>
<tr>
<td width="22%" valign="top"> </td>
<td width="78%">
<input name="if" type="hidden" value="<?=$if;?>">
<input name="Submit" type="submit" class="formbtn" value="Save" onclick="enable_change(true)">
</td>
</tr>
<tr>
<td width="22%" valign="top"> </td>
<td width="78%"> <p><span class="vexpl"><span class="red"><strong>Note:<br>
</strong></span>The DNS servers entered in <a href="system.php">System:
General setup</a> (or the <a href="services_dnsmasq.php">DNS
forwarder</a>, if enabled) </span><span class="vexpl">will
be assigned to clients by the DHCP server.<br>
<br>
The DHCP lease table can be viewed on the <a href="diag_dhcp_leases.php">Diagnostics:
DHCP leases</a> page.<br>
</span></p></td>
</tr>
</table>
<br>
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="35%" class="listhdrr">MAC address </td>
<td width="20%" class="listhdrr">IP address</td>
<td width="35%" class="listhdr">Description</td>
<td width="10%" class="list"></td>
</tr>
<?php $i = 0; foreach ($a_maps as $mapent): ?>
<tr>
<td class="listlr">
<?=htmlspecialchars($mapent['mac']);?>
</td>
<td class="listr">
<?=htmlspecialchars($mapent['ipaddr']);?>
</td>
<td class="listbg">
<?=htmlspecialchars($mapent['descr']);?>
</td>
<td valign="middle" nowrap class="list"> <a href="services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>"><img src="e.gif" width="17" height="17" border="0"></a>
<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>
</tr>
<?php $i++; endforeach; ?>
<tr>
<td class="list" colspan="3"></td>
<td class="list"> <a href="services_dhcp_edit.php?if=<?=$if;?>"><img src="plus.gif" width="17" height="17" border="0"></a></td>
</tr>
</table>
</td>
</tr>
</table>
</form>
<script language="JavaScript">
<!--
enable_change(false);
//-->
</script>
<?php include_once("fend.inc"); ?>
</body>
</html>
|
