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
|
#!/usr/local/bin/php
<?php
/*
vpn_pptp.php
part of m0n0wall (http://m0n0.ch/wall)
Copyright (C) 2003-2005 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("guiconfig.inc");
if (!is_array($config['pptpd']['radius'])) {
$config['pptpd']['radius'] = array();
}
$pptpcfg = &$config['pptpd'];
$pconfig['remoteip'] = $pptpcfg['remoteip'];
$pconfig['localip'] = $pptpcfg['localip'];
$pconfig['redir'] = $pptpcfg['redir'];
$pconfig['mode'] = $pptpcfg['mode'];
$pconfig['wins'] = $pptpcfg['wins'];
$pconfig['req128'] = isset($pptpcfg['req128']);
$pconfig['radiusenable'] = isset($pptpcfg['radius']['enable']);
$pconfig['radacct_enable'] = isset($pptpcfg['radius']['accounting']);
$pconfig['radiusserver'] = $pptpcfg['radius']['server'];
$pconfig['radiussecret'] = $pptpcfg['radius']['secret'];
if ($_POST) {
unset($input_errors);
$pconfig = $_POST;
/* input validation */
if ($_POST['mode'] == "server") {
$reqdfields = explode(" ", "localip remoteip");
$reqdfieldsn = explode(",", "Server address,Remote start address");
if ($_POST['radiusenable']) {
$reqdfields = array_merge($reqdfields, explode(" ", "radiusserver radiussecret"));
$reqdfieldsn = array_merge($reqdfieldsn,
explode(",", "RADIUS server address,RADIUS shared secret"));
}
do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
if (($_POST['localip'] && !is_ipaddr($_POST['localip']))) {
$input_errors[] = "A valid server address must be specified.";
}
if (($_POST['subnet'] && !is_ipaddr($_POST['remoteip']))) {
$input_errors[] = "A valid remote start address must be specified.";
}
if (($_POST['radiusserver'] && !is_ipaddr($_POST['radiusserver']))) {
$input_errors[] = "A valid RADIUS server address must be specified.";
}
if (!$input_errors) {
$_POST['remoteip'] = $pconfig['remoteip'] = gen_subnet($_POST['remoteip'], $g['pptp_subnet']);
$subnet_start = ip2long($_POST['remoteip']);
$subnet_end = ip2long($_POST['remoteip']) + $g['n_pptp_units'] - 1;
if ((ip2long($_POST['localip']) >= $subnet_start) &&
(ip2long($_POST['localip']) <= $subnet_end)) {
$input_errors[] = "The specified server address lies in the remote subnet.";
}
if ($_POST['localip'] == $config['interfaces']['lan']['ipaddr']) {
$input_errors[] = "The specified server address is equal to the LAN interface address.";
}
}
} else if ($_POST['mode'] == "redir") {
$reqdfields = explode(" ", "redir");
$reqdfieldsn = explode(",", "PPTP redirection target address");
do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
if (($_POST['redir'] && !is_ipaddr($_POST['redir']))) {
$input_errors[] = "A valid target address must be specified.";
}
}
if (!$input_errors) {
$pptpcfg['remoteip'] = $_POST['remoteip'];
$pptpcfg['redir'] = $_POST['redir'];
$pptpcfg['localip'] = $_POST['localip'];
$pptpcfg['mode'] = $_POST['mode'];
$pptpcfg['wins'] = $_POST['wins'];
$pptpcfg['radius']['server'] = $_POST['radiusserver'];
$pptpcfg['radius']['secret'] = $_POST['radiussecret'];
if($_POST['req128'] == "yes")
$pptpcfg['req128'] = true;
else
unset($pptpcfg['req128']);
if($_POST['radiusenable'] == "yes")
$pptpcfg['radius']['enable'] = true;
else
unset($pptpcfg['radius']['enable']);
if($_POST['radacct_enable'] == "yes")
$pptpcfg['radius']['accounting'] = true;
else
unset($pptpcfg['radius']['accounting']);
write_config();
$retval = 0;
config_lock();
$retval = vpn_pptpd_configure();
config_unlock();
$savemsg = get_std_save_message($retval);
filter_configure();
}
}
$pgtitle = "VPN PPTP";
include("head.inc");
?>
<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<?php include("fbegin.inc"); ?>
<p class="pgtitle"><?=$pgtitle?></p>
<script language="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.req128.disabled = 0;
document.iform.radiusenable.disabled = 0;
document.iform.wins.disabled = 0;
if (document.iform.radiusenable.checked || enable_over) {
document.iform.radacct_enable.disabled = 0;
document.iform.radiusserver.disabled = 0;
document.iform.radiussecret.disabled = 0;
} else {
document.iform.radacct_enable.disabled = 1;
document.iform.radiusserver.disabled = 1;
document.iform.radiussecret.disabled = 1;
}
} else {
document.iform.remoteip.disabled = 1;
document.iform.localip.disabled = 1;
document.iform.req128.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.wins.disabled = 1;
}
if ((get_radio_value(document.iform.mode) == "redir") || enable_over) {
document.iform.redir.disabled = 0;
} else {
document.iform.redir.disabled = 1;
}
}
//-->
</script>
<form action="vpn_pptp.php" method="post" name="iform" id="iform">
<?php if ($input_errors) print_input_errors($input_errors); ?>
<?php if ($savemsg) print_info_box($savemsg); ?>
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr><td class="tabnavtbl">
<?php
$tab_array = array();
$tab_array[0] = array("Configuration", true, "vpn_pptp.php");
$tab_array[1] = array("Users", false, "vpn_pptp_users.php");
display_top_tabs($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";?>>
Off</td>
<tr>
<td width="22%" valign="top" class="vtable"> </td>
<td width="78%" class="vtable">
<input type="radio" name="mode" value="redir" onclick="enable_change(false)" <?php if ($pconfig['mode'] == "redir") echo "checked"; ?>>
Redirect incoming PPTP connections to:</td>
<tr>
<td width="22%" valign="top" class="vncellreq">PPTP redirection</td>
<td width="78%" class="vtable">
<?=$mandfldhtml;?><input name="redir" type="text" class="formfld" id="redir" size="20" value="<?=htmlspecialchars($pconfig['redir']);?>">
<br>
Enter the IP address of a host which will accept incoming
PPTP connections.</td>
<tr>
<td width="22%" valign="top" class="vtable"> </td>
<td width="78%" class="vtable">
<input type="radio" name="mode" value="server" onclick="enable_change(false)" <?php if ($pconfig['mode'] == "server") echo "checked"; ?>>
Enable PPTP server</td>
<tr>
<td width="22%" valign="top" class="vncellreq">Max. concurrent
connections</td>
<td width="78%" class="vtable">
<?=$g['n_pptp_units'];?>
</td>
<tr>
<td width="22%" valign="top" class="vncellreq">Server address</td>
<td width="78%" class="vtable">
<?=$mandfldhtml;?><input name="localip" type="text" class="formfld" id="localip" size="20" value="<?=htmlspecialchars($pconfig['localip']);?>">
<br>
Enter the IP address the PPTP server should use on its side
for all clients.</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq">Remote address
range</td>
<td width="78%" class="vtable">
<?=$mandfldhtml;?><input name="remoteip" type="text" class="formfld" id="remoteip" size="20" value="<?=htmlspecialchars($pconfig['remoteip']);?>">
/
<?=$g['pptp_subnet'];?>
<br>
Specify the starting address for the client IP address subnet.<br>
The PPTP server will assign
<?=$g['n_pptp_units'];?>
addresses, starting at the address entered above, to clients.</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell">RADIUS</td>
<td width="78%" class="vtable">
<input name="radiusenable" type="checkbox" id="radiusenable" onclick="enable_change(false)" value="yes" <?php if ($pconfig['radiusenable']) echo "checked"; ?>>
<strong>Use a RADIUS server for authentication<br>
</strong>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 ($pconfig['radacct_enable']) echo "checked"; ?>>
<strong>Enable RADIUS accounting <br>
</strong>Sends accounting packets to the RADIUS server.</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell">RADIUS server </td>
<td width="78%" class="vtable">
<input name="radiusserver" type="text" class="formfld" id="radiusserver" size="20" value="<?=htmlspecialchars($pconfig['radiusserver']);?>">
<br>
Enter the IP address of the RADIUS server.</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncell">RADIUS shared secret</td>
<td width="78%" valign="top" class="vtable">
<input name="radiussecret" type="password" class="formfld" id="radiussecret" size="20" value="<?=htmlspecialchars($pconfig['radiussecret']);?>">
<br>
Enter the shared secret that will be used to authenticate
to the RADIUS server.</td>
</tr>
</tr>
<tr>
<td width="22%" valign="top" class="vncell">WINS Server</td>
<td width="78%" valign="top" class="vtable">
<input name="wins" class="formfld" id="wins" size="20" value="<?=htmlspecialchars($pconfig['wins']);?>">
</td>
</tr>
<tr>
<td height="16" colspan="2" valign="top"></td>
</tr>
<tr>
<td width="22%" valign="middle"> </td>
<td width="78%" class="vtable">
<input name="req128" type="checkbox" id="req128" value="yes" <?php if ($pconfig['req128']) echo "checked"; ?>>
<strong>Require 128-bit encryption</strong><br>
When set, 128-bit encryption will be accepted. Otherwise,
40-bit and 56-bit encryption will be accepted, too. Note that
encryption will always be forced on PPTP connections (i.e.
unencrypted connections will not be accepted).</td>
</tr>
<tr>
<td width="22%" valign="top"> </td>
<td width="78%">
<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%"><span class="vexpl"><span class="red"><strong>Note:<br>
</strong></span>don't forget to <a href="firewall_rules.php?if=pptp">add a firewall rule</a> to permit
traffic from PPTP clients!</span></td>
</tr>
</table>
</div>
</td>
</tr>
</table>
</form>
<script language="JavaScript">
<!--
enable_change(false);
//-->
</script>
<?php include("fend.inc"); ?>
</body>
</html>
|
