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
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
|
<?php
/*
vpn_l2tp.php
part of pfSense
Copyright (C) 2005 Scott Ullrich (sullrich@gmail.com)
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.
*/
##|+PRIV
##|*IDENT=page-vpn-vpnl2tp
##|*NAME=VPN: VPN L2TP page
##|*DESCR=Allow access to the 'VPN: VPN L2TP' page.
##|*MATCH=vpn_l2tp.php*
##|-PRIV
$pgtitle = array(gettext("VPN"), gettext("L2TP"), gettext("L2TP"));
require("guiconfig.inc");
require_once("vpn.inc");
if (!is_array($config['l2tp']['radius'])) {
$config['l2tp']['radius'] = array();
}
$l2tpcfg = &$config['l2tp'];
$pconfig['remoteip'] = $l2tpcfg['remoteip'];
$pconfig['localip'] = $l2tpcfg['localip'];
$pconfig['l2tp_subnet'] = $l2tpcfg['l2tp_subnet'];
$pconfig['mode'] = $l2tpcfg['mode'];
$pconfig['interface'] = $l2tpcfg['interface'];
$pconfig['l2tp_dns1'] = $l2tpcfg['dns1'];
$pconfig['l2tp_dns2'] = $l2tpcfg['dns2'];
$pconfig['wins'] = $l2tpcfg['wins'];
$pconfig['radiusenable'] = isset($l2tpcfg['radius']['enable']);
$pconfig['radacct_enable'] = isset($l2tpcfg['radius']['accounting']);
$pconfig['radiusserver'] = $l2tpcfg['radius']['server'];
$pconfig['radiussecret'] = $l2tpcfg['radius']['secret'];
$pconfig['radiusissueips'] = $l2tpcfg['radius']['radiusissueips'];
$pconfig['n_l2tp_units'] = $l2tpcfg['n_l2tp_units'];
$pconfig['paporchap'] = $l2tpcfg['paporchap'];
$pconfig['secret'] = $l2tpcfg['secret'];
if ($_POST) {
unset($input_errors);
$pconfig = $_POST;
/* input validation */
if ($_POST['mode'] == "server") {
$reqdfields = explode(" ", "localip remoteip");
$reqdfieldsn = array(gettext("Server address"),gettext("Remote start address"));
if ($_POST['radiusenable']) {
$reqdfields = array_merge($reqdfields, explode(" ", "radiusserver radiussecret"));
$reqdfieldsn = array_merge($reqdfieldsn,
array(gettext("RADIUS server address"),gettext("RADIUS shared secret")));
}
do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
if (($_POST['localip'] && !is_ipaddr($_POST['localip']))) {
$input_errors[] = gettext("A valid server address must be specified.");
}
if (($_POST['l2tp_subnet'] && !is_ipaddr($_POST['remoteip']))) {
$input_errors[] = gettext("A valid remote start address must be specified.");
}
if (($_POST['radiusserver'] && !is_ipaddr($_POST['radiusserver']))) {
$input_errors[] = gettext("A valid RADIUS server address must be specified.");
}
/* if this is an AJAX caller then handle via JSON */
if(isAjax() && is_array($input_errors)) {
input_errors2Ajax($input_errors);
exit;
}
if (!$input_errors) {
$_POST['remoteip'] = $pconfig['remoteip'] = gen_subnet($_POST['remoteip'], $_POST['l2tp_subnet']);
$subnet_start = ip2ulong($_POST['remoteip']);
$subnet_end = ip2ulong($_POST['remoteip']) + $_POST['n_l2tp_units'] - 1;
if ((ip2ulong($_POST['localip']) >= $subnet_start) &&
(ip2ulong($_POST['localip']) <= $subnet_end)) {
$input_errors[] = gettext("The specified server address lies in the remote subnet.");
}
if ($_POST['localip'] == get_interface_ip("lan")) {
$input_errors[] = gettext("The specified server address is equal to the LAN interface address.");
}
}
}
/* if this is an AJAX caller then handle via JSON */
if(isAjax() && is_array($input_errors)) {
input_errors2Ajax($input_errors);
exit;
}
if (!$input_errors) {
$l2tpcfg['remoteip'] = $_POST['remoteip'];
$l2tpcfg['localip'] = $_POST['localip'];
$l2tpcfg['l2tp_subnet'] = $_POST['l2tp_subnet'];
$l2tpcfg['mode'] = $_POST['mode'];
$l2tpcfg['interface'] = $_POST['interface'];
$l2tpcfg['n_l2tp_units'] = $_POST['n_l2tp_units'];
$l2tpcfg['radius']['server'] = $_POST['radiusserver'];
$l2tpcfg['radius']['secret'] = $_POST['radiussecret'];
$l2tpcfg['secret'] = $_POST['secret'];
if($_POST['wins'])
$l2tpcfg['wins'] = $_POST['wins'];
else
unset($l2tpcfg['wins']);
$l2tpcfg['paporchap'] = $_POST['paporchap'];
if ($_POST['l2tp_dns1'] == "") {
if (isset($l2tpcfg['dns1']))
unset($l2tpcfg['dns1']);
} else
$l2tpcfg['dns1'] = $_POST['l2tp_dns1'];
if ($_POST['l2tp_dns2'] == "") {
if (isset($l2tpcfg['dns2']))
unset($l2tpcfg['dns2']);
} else
$l2tpcfg['dns2'] = $_POST['l2tp_dns2'];
if($_POST['radiusenable'] == "yes")
$l2tpcfg['radius']['enable'] = true;
else
unset($l2tpcfg['radius']['enable']);
if($_POST['radacct_enable'] == "yes")
$l2tpcfg['radius']['accounting'] = true;
else
unset($l2tpcfg['radius']['accounting']);
if($_POST['radiusissueips'] == "yes")
$l2tpcfg['radius']['radiusissueips'] = true;
else
unset($l2tpcfg['radius']['radiusissueips']);
write_config();
$retval = 0;
$retval = vpn_l2tp_configure();
$savemsg = get_std_save_message($retval);
/* if ajax is calling, give them an update message */
if(isAjax())
print_info_box_np($savemsg);
}
}
include("head.inc");
?>
<body link="#0000CC" vlink="#0000CC" alink="#0000CC" onload="<?= $jsevents["body"]["onload"] ?>">
<?php include("fbegin.inc"); ?>
<script type="text/javascript">
<!--
function get_radio_value(obj)
{
for (i = 0; i < obj.length; i++) {
if (obj[i].checked)
return obj[i].value;
}
return null;
}
function enable_change(enable_over) {
if ((get_radio_value(document.iform.mode) == "server") || enable_over) {
document.iform.remoteip.disabled = 0;
document.iform.localip.disabled = 0;
document.iform.l2tp_subnet.disabled = 0;
document.iform.radiusenable.disabled = 0;
document.iform.radiusissueips.disabled = 0;
document.iform.paporchap.disabled = 0;
document.iform.interface.disabled = 0;
document.iform.n_l2tp_units.disabled = 0;
document.iform.secret.disabled = 0;
document.iform.l2tp_dns1.disabled = 0;
document.iform.l2tp_dns2.disabled = 0;
/* fix colors */
document.iform.remoteip.style.backgroundColor = '#FFFFFF';
document.iform.localip.style.backgroundColor = '#FFFFFF';
document.iform.l2tp_subnet.style.backgroundColor = '#FFFFFF';
document.iform.radiusenable.style.backgroundColor = '#FFFFFF';
document.iform.radiusissueips.style.backgroundColor = '#FFFFFF';
document.iform.paporchap.style.backgroundColor = '#FFFFFF';
document.iform.interface.style.backgroundColor = '#FFFFFF';
document.iform.n_l2tp_units.style.backgroundColor = '#FFFFFF';
document.iform.secret.style.backgroundColor = '#FFFFFF';
if (document.iform.radiusenable.checked || enable_over) {
document.iform.radacct_enable.disabled = 0;
document.iform.radiusserver.disabled = 0;
document.iform.radiussecret.disabled = 0;
document.iform.radiusissueips.disabled = 0;
/* fix colors */
document.iform.radacct_enable.style.backgroundColor = '#FFFFFF';
document.iform.radiusserver.style.backgroundColor = '#FFFFFF';
document.iform.radiussecret.style.backgroundColor = '#FFFFFF';
document.iform.radiusissueips.style.backgroundColor = '#FFFFFF';
} else {
document.iform.radacct_enable.disabled = 1;
document.iform.radiusserver.disabled = 1;
document.iform.radiussecret.disabled = 1;
document.iform.radiusissueips.disabled = 1;
/* fix colors */
document.iform.radacct_enable.style.backgroundColor = '#D4D0C8';
document.iform.radiusserver.style.backgroundColor = '#D4D0C8';
document.iform.radiussecret.style.backgroundColor = '#D4D0C8';
document.iform.radiusissueips.style.backgroundColor = '#D4D0C8';
}
} else {
document.iform.interface.disabled = 1;
document.iform.n_l2tp_units.disabled = 1;
document.iform.l2tp_subnet.disabled = 1;
document.iform.l2tp_dns1.disabled = 1;
document.iform.l2tp_dns2.disabled = 1;
document.iform.paporchap.disabled = 1;
document.iform.remoteip.disabled = 1;
document.iform.localip.disabled = 1;
document.iform.radiusenable.disabled = 1;
document.iform.radacct_enable.disabled = 1;
document.iform.radiusserver.disabled = 1;
document.iform.radiussecret.disabled = 1;
document.iform.radiusissueips.disabled = 1;
document.iform.secret.disabled = 1;
/* fix colors */
document.iform.interface.style.backgroundColor = '#D4D0C8';
document.iform.n_l2tp_units.style.backgroundColor = '#D4D0C8';
document.iform.l2tp_subnet.style.backgroundColor = '#D4D0C8';
document.iform.paporchap.style.backgroundColor = '#D4D0C8';
document.iform.remoteip.style.backgroundColor = '#D4D0C8';
document.iform.localip.style.backgroundColor = '#D4D0C8';
document.iform.radiusenable.style.backgroundColor = '#D4D0C8';
document.iform.radacct_enable.style.backgroundColor = '#D4D0C8';
document.iform.radiusserver.style.backgroundColor = '#D4D0C8';
document.iform.radiussecret.style.backgroundColor = '#D4D0C8';
document.iform.radiusissueips.style.backgroundColor = '#D4D0C8';
document.iform.secret.style.backgroundColor = '#D4D0C8';
}
}
//-->
</script>
<form action="vpn_l2tp.php" method="post" name="iform" id="iform">
<?php if ($input_errors) print_input_errors($input_errors); ?>
<?php if ($savemsg) print_info_box($savemsg); ?>
<div id="inputerrors"></div>
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr><td class="tabnavtbl">
<?php
$tab_array = array();
$tab_array[0] = array(gettext("Configuration"), true, "vpn_l2tp.php");
$tab_array[1] = array(gettext("Users"), false, "vpn_l2tp_users.php");
display_top_tabs($tab_array);
?>
</td></tr>
<tr>
<td>
<div id="mainarea">
<table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0">
<tr>
<td width="22%" valign="top" class="vtable"> </td>
<td width="78%" class="vtable">
<input name="mode" type="radio" onclick="enable_change(false)" value="off"
<?php if (($pconfig['mode'] != "server") && ($pconfig['mode'] != "redir")) echo "checked=\"checked\"";?> />
<?=gettext("Off"); ?></td>
</tr>
<tr>
<td width="22%" valign="top" class="vtable"> </td>
<td width="78%" class="vtable">
<input type="radio" name="mode" value="server" onclick="enable_change(false)" <?php if ($pconfig['mode'] == "server") echo "checked=\"checked\""; ?> />
<?=gettext("Enable l2tp server"); ?></td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><b><?=gettext("Interface");?></b></td>
<td width="78%" valign="top" class="vtable">
<select name="interface" class="formselect" id="interface">
<?php
$interfaces = get_configured_interface_with_descr();
foreach ($interfaces as $iface => $ifacename):
?>
<option value="<?=$iface;?>" <?php if ($iface == $pconfig['interface']) echo "selected"; ?>>
<?=htmlspecialchars($ifacename);?>
</option>
<?php endforeach; ?>
</select> <br />
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq"><?=gettext("Server address");?></td>
<td width="78%" class="vtable">
<?=$mandfldhtml;?><input name="localip" type="text" class="formfld unknown" id="localip" size="20" value="<?=htmlspecialchars($pconfig['localip']);?>" />
<br />
<?=gettext("Enter the IP address the L2TP server should use on its side for all clients.");?></td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq"><?=gettext("Remote address range");?></td>
<td width="78%" class="vtable">
<?=$mandfldhtml;?><input name="remoteip" type="text" class="formfld unknown" id="remoteip" size="20" value="<?=htmlspecialchars($pconfig['remoteip']);?>" />
<br />
<?=gettext("Specify the starting address for the client IP address subnet.");?><br />
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq"><?=gettext("Subnet netmask"); ?></td>
<td width="78%" class="vtable">
<select id="l2tp_subnet" name="l2tp_subnet">
<?php
for($x=0; $x<33; $x++) {
if($x == $pconfig['l2tp_subnet'])
$SELECTED = " SELECTED";
else
$SELECTED = "";
echo "<option value=\"{$x}\"{$SELECTED}>{$x}</option>\n";
}
?>
</select>
<br><?=gettext("Hint:"); ?> 24 <?=gettext("is"); ?> 255.255.255.0
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq"><?=gettext("Number of L2TP users"); ?></td>
<td width="78%" class="vtable">
<select id="n_l2tp_units" name="n_l2tp_units">
<?php
for($x=0; $x<255; $x++) {
if($x == $pconfig['n_l2tp_units'])
$SELECTED = " SELECTED";
else
$SELECTED = "";
echo "<option value=\"{$x}\"{$SELECTED}>{$x}</option>\n";
}
?>
</select>
<br><?=gettext("Hint:"); ?> 10 <?=gettext("is ten L2TP clients"); ?>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("Secret");?></td>
<td width="78%" class="vtable">
<input type="password" name="secret" id="secret" class="formfld pwd" value="<? echo htmlspecialchars($pconfig['secret']); ?>">
<br />
<?=gettext("Specify optional secret shared between peers. Required on some devices/setups.");?><br />
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq"><?=gettext("Encryption type");?></td>
<td width="78%" class="vtable">
<?=$mandfldhtml;?><select name="paporchap" id="paporchap">
<option value='chap'<?php if($pconfig['paporchap'] == "chap") echo " SELECTED"; ?>><?=gettext("CHAP"); ?></option>
<option value='pap'<?php if($pconfig['paporchap'] == "pap") echo " SELECTED"; ?>><?=gettext("PAP"); ?></option>
</select>
<br />
<?=gettext("Specifies which protocol to use for authentication.");?><br />
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("L2TP DNS Servers"); ?></td>
<td width="78%" class="vtable">
<?=$mandfldhtml;?><input name="l2tp_dns1" type="text" class="formfld unknown" id="l2tp_dns1" size="20" value="<?=htmlspecialchars($pconfig['l2tp_dns1']);?>">
<br>
<input name="l2tp_dns2" type="text" class="formfld unknown" id="l2tp_dns2" size="20" value="<?=htmlspecialchars($pconfig['l2tp_dns2']);?>">
<br>
<?=gettext("primary and secondary DNS servers assigned to L2TP clients"); ?><br>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("WINS Server"); ?></td>
<td width="78%" valign="top" class="vtable">
<input name="wins" class="formfld unknown" id="wins" size="20" value="<?=htmlspecialchars($pconfig['wins']);?>">
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("RADIUS"); ?></td>
<td width="78%" class="vtable">
<input name="radiusenable" type="checkbox" id="radiusenable" onclick="enable_change(false)" value="yes" <?php if ($pconfig['radiusenable']) echo "checked=\"checked\""; ?> />
<strong> <?=gettext("Use a RADIUS server for authentication");?><br /></strong>
<?=gettext("When set, all users will be authenticated using the RADIUS server specified below. The local user database will not be used.");?><br />
<br />
<input name="radacct_enable" type="checkbox" id="radacct_enable" onclick="enable_change(false)" value="yes" <?php if ($pconfig['radacct_enable']) echo "checked=\"checked\""; ?> />
<strong><?=gettext("Enable RADIUS accounting");?></strong><br />
<?=gettext("Sends accounting packets to the RADIUS server.");?></td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("RADIUS server");?></td>
<td width="78%" class="vtable">
<input name="radiusserver" type="text" class="formfld unknown" id="radiusserver" size="20" value="<?=htmlspecialchars($pconfig['radiusserver']);?>" />
<br />
<?=gettext("Enter the IP address of the RADIUS server.");?></td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("RADIUS shared secret");?></td>
<td width="78%" valign="top" class="vtable">
<input name="radiussecret" type="password" class="formfld pwd" id="radiussecret" size="20" value="<?=htmlspecialchars($pconfig['radiussecret']);?>" />
<br />
<?=gettext("Enter the shared secret that will be used to authenticate to the RADIUS server.");?></td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell"><?=gettext("RADIUS issued IP's");?></td>
<td width="78%" valign="top" class="vtable">
<input name="radiusissueips" value="yes" type="checkbox" class="formfld" id="radiusissueips"<?php if(isset($pconfig['radiusissueips'])) echo " checked=\"checked\""; ?> />
<br />
<?=gettext("Issue IP Addresses via RADIUS server.");?>
</td>
</tr>
<tr>
<td width="22%" valign="top"> </td>
<td width="78%">
<input id="submit" name="Submit" type="submit" class="formbtn" value="<?=gettext("Save"); ?>" onclick="enable_change(true)" />
</td>
</tr>
<tr>
<td colspan="2">
<span class="vexpl">
<strong class="red"><?=gettext("Note:");?></strong><br />
<?=gettext("Don't forget to add a firewall rule to permit traffic from L2TP clients!");?>
</span>
</td>
</tr>
</table>
</div>
</td>
</tr>
</table>
</form>
<script type="text/javascript">
enable_change(false);
</script>
<?php include("fend.inc"); ?>
</body>
</html>
|
