summaryrefslogtreecommitdiffstats
path: root/src/usr/local/www/vpn_ipsec_settings.php
blob: ecacb206a448522b9ab6ad1c0d4a99e1c76dc941 (plain)
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
<?php
/*
	vpn_ipsec_settings.php
*/
/* ====================================================================
 *	Copyright (c)  2004-2015  Electric Sheep Fencing, LLC. All rights reserved.
 *	Copyright (c)  2004, 2005 Scott Ullrich
 *
 *	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.
 *
 *	3. All advertising materials mentioning features or use of this software
 *		must display the following acknowledgment:
 *		"This product includes software developed by the pfSense Project
 *		 for use in the pfSense software distribution. (http://www.pfsense.org/).
 *
 *	4. The names "pfSense" and "pfSense Project" must not be used to
 *		 endorse or promote products derived from this software without
 *		 prior written permission. For written permission, please contact
 *		 coreteam@pfsense.org.
 *
 *	5. Products derived from this software may not be called "pfSense"
 *		nor may "pfSense" appear in their names without prior written
 *		permission of the Electric Sheep Fencing, LLC.
 *
 *	6. Redistributions of any form whatsoever must retain the following
 *		acknowledgment:
 *
 *	"This product includes software developed by the pfSense Project
 *	for use in the pfSense software distribution (http://www.pfsense.org/).
 *
 *	THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
 *	EXPRESSED 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 pfSense PROJECT OR
 *	ITS CONTRIBUTORS 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-ipsec-settings
##|*NAME=VPN: IPsec: Settings page
##|*DESCR=Allow access to the 'VPN: IPsec: Settings' page.
##|*MATCH=vpn_ipsec_settings.php*
##|-PRIV

require("functions.inc");
require("guiconfig.inc");
require_once("filter.inc");
require_once("shaper.inc");
require_once("ipsec.inc");
require_once("vpn.inc");

foreach ($ipsec_loglevels as $lkey => $ldescr) {
	if (!empty($config['ipsec']["ipsec_{$lkey}"])) {
		$pconfig["ipsec_{$lkey}"] = $config['ipsec']["ipsec_{$lkey}"];
	}
}

$pconfig['unityplugin'] = isset($config['ipsec']['unityplugin']);
$pconfig['strictcrlpolicy'] = isset($config['ipsec']['strictcrlpolicy']);
$pconfig['makebeforebreak'] = isset($config['ipsec']['makebeforebreak']);
$pconfig['noshuntlaninterfaces'] = isset($config['ipsec']['noshuntlaninterfaces']);
$pconfig['compression'] = isset($config['ipsec']['compression']);
$pconfig['enableinterfacesuse'] = isset($config['ipsec']['enableinterfacesuse']);
$pconfig['acceptunencryptedmainmode'] = isset($config['ipsec']['acceptunencryptedmainmode']);
$pconfig['maxmss_enable'] = isset($config['system']['maxmss_enable']);
$pconfig['maxmss'] = $config['system']['maxmss'];
$pconfig['uniqueids'] = $config['ipsec']['uniqueids'];

if ($_POST) {
	unset($input_errors);
	$pconfig = $_POST;

	if (!in_array($pconfig['ipsec_dmn'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for Daemon debug.";
	}
	if (!in_array($pconfig['ipsec_mgr'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for SA Manager debug.";
	}
	if (!in_array($pconfig['ipsec_ike'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for IKE SA debug.";
	}
	if (!in_array($pconfig['ipsec_chd'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for IKE Child SA debug.";
	}
	if (!in_array($pconfig['ipsec_job'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for Job Processing debug.";
	}
	if (!in_array($pconfig['ipsec_cfg'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for Configuration backend debug.";
	}
	if (!in_array($pconfig['ipsec_knl'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for Kernel Interface debug.";
	}
	if (!in_array($pconfig['ipsec_net'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for Networking debug.";
	}
	if (!in_array($pconfig['ipsec_asn'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for ASN Encoding debug.";
	}
	if (!in_array($pconfig['ipsec_enc'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for Message encoding debug.";
	}
	if (!in_array($pconfig['ipsec_imc'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for Integrity checker debug.";
	}
	if (!in_array($pconfig['ipsec_imv'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for Integrity Verifier debug.";
	}
	if (!in_array($pconfig['ipsec_pts'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for Platform Trust Service debug.";
	}
	if (!in_array($pconfig['ipsec_tls'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for TLS Handler debug.";
	}
	if (!in_array($pconfig['ipsec_esp'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for IPsec Traffic debug.";
	}
	if (!in_array($pconfig['ipsec_lib'], array('0', '1', '2', '3', '4', '5'), true)) {
		$input_errors[] = "A valid value must be specified for StrongSwan Lib debug.";
	}
	if (isset($pconfig['maxmss'])) {
		if (!is_numericint($pconfig['maxmss']) && $pconfig['maxmss'] != '') {
			$input_errors[] = "An integer must be specified for Maximum MSS.";
		}
		if ($pconfig['maxmss'] <> '' && $pconfig['maxmss'] < 576 || $pconfig['maxmss'] > 65535) {
			$input_errors[] = "An integer between 576 and 65535 must be specified for Maximum MSS";
		}
	}

	if (!$input_errors) {

		foreach ($ipsec_loglevels as $lkey => $ldescr) {
			if (empty($_POST["ipsec_{$lkey}"])) {
				if (isset($config['ipsec']["ipsec_{$lkey}"])) {
					unset($config['ipsec']["ipsec_{$lkey}"]);
				}
			} else {
				$config['ipsec']["ipsec_{$lkey}"] = $_POST["ipsec_{$lkey}"];
			}
		}

		$needsrestart = false;

		if ($_POST['compression'] == "yes") {
			if (!isset($config['ipsec']['compression'])) {
				$needsrestart = true;
			}
			$config['ipsec']['compression'] = true;
		} elseif (isset($config['ipsec']['compression'])) {
			$needsrestart = true;
			unset($config['ipsec']['compression']);
		}

		if ($_POST['enableinterfacesuse'] == "yes") {
			if (!isset($config['ipsec']['enableinterfacesuse'])) {
				$needsrestart = true;
			}
			$config['ipsec']['enableinterfacesuse'] = true;
		} elseif (isset($config['ipsec']['enableinterfacesuse'])) {
			$needsrestart = true;
			unset($config['ipsec']['enableinterfacesuse']);
		}

		if ($_POST['unityplugin'] == "yes") {
			if (!isset($config['ipsec']['unityplugin'])) {
				$needsrestart = true;
			}
			$config['ipsec']['unityplugin'] = true;
		} elseif (isset($config['ipsec']['unityplugin'])) {
			$needsrestart = true;
			unset($config['ipsec']['unityplugin']);
		}

		if ($_POST['strictcrlpolicy'] == "yes") {
			$config['ipsec']['strictcrlpolicy'] = true;
		} elseif (isset($config['ipsec']['strictcrlpolicy'])) {
			unset($config['ipsec']['strictcrlpolicy']);
		}

		if ($_POST['makebeforebreak'] == "yes") {
			$config['ipsec']['makebeforebreak'] = true;
		} elseif (isset($config['ipsec']['makebeforebreak'])) {
			unset($config['ipsec']['makebeforebreak']);
		}

		// The UI deals with "Auto-exclude LAN address" but in the back-end we work with 
		// noshuntlaninterfaces which is the reverse true/false logic setting - #4655
		if ($_POST['autoexcludelanaddress'] == "yes") {
			if (isset($config['ipsec']['noshuntlaninterfaces'])) {
				unset($config['ipsec']['noshuntlaninterfaces']);
			}
		} else {
			$config['ipsec']['noshuntlaninterfaces'] = true;
		}

		if ($_POST['acceptunencryptedmainmode'] == "yes") {
			if (!isset($config['ipsec']['acceptunencryptedmainmode'])) {
				$needsrestart = true;
			}
			$config['ipsec']['acceptunencryptedmainmode'] = true;
		} elseif (isset($config['ipsec']['acceptunencryptedmainmode'])) {
			$needsrestart = true;
			unset($config['ipsec']['acceptunencryptedmainmode']);
		}

		if (!empty($_POST['uniqueids'])) {
			$config['ipsec']['uniqueids'] = $_POST['uniqueids'];
		} else if (isset($config['ipsec']['uniqueids'])) {
			unset($config['ipsec']['uniqueids']);
		}

		if ($_POST['maxmss_enable'] == "yes") {
			$config['system']['maxmss_enable'] = true;
			$config['system']['maxmss'] = $_POST['maxmss'];
		} else {
			if (isset($config['system']['maxmss_enable'])) {
				unset($config['system']['maxmss_enable']);
			}
			if (isset($config['system']['maxmss'])) {
				unset($config['system']['maxmss']);
			}
		}

		write_config();

		$retval = 0;
		$retval = filter_configure();
		if (stristr($retval, "error") <> true) {
			$savemsg = get_std_save_message(gettext($retval));
		} else {
			$savemsg = gettext($retval);
		}

		vpn_ipsec_configure($needsrestart);
		vpn_ipsec_configure_loglevels();

		header("Location: vpn_ipsec_settings.php");
		return;
	}

	// The logic value sent by $POST for autoexcludelanaddress is opposite to
	// the way it is stored in the config as noshuntlaninterfaces.
	// Reset the $pconfig value so it reflects the opposite of what was $POSTed.
	// This helps a redrawn UI page after Save to correctly display the most recently entered setting.
	if ($_POST['autoexcludelanaddress'] == "yes") {
		$pconfig['noshuntlaninterfaces'] = false;
	} else {
		$pconfig['noshuntlaninterfaces'] = true;
	}
}

$pgtitle = array(gettext("VPN"), gettext("IPsec"), gettext("Settings"));
$shortcut_section = "ipsec";

include("head.inc");
?>

<script type="text/javascript">
//<![CDATA[

function maxmss_checked(obj) {
	if (obj.checked) {
		jQuery('#maxmss').attr('disabled', false);
	} else {
		jQuery('#maxmss').attr('disabled', 'true');
	}
}

//]]>
</script>

<?php
if ($savemsg)
	print_info_box($savemsg);

if ($input_errors)
	print_input_errors($input_errors);

$tab_array = array();
$tab_array[0] = array(gettext("Tunnels"), false, "vpn_ipsec.php");
$tab_array[1] = array(gettext("Mobile clients"), false, "vpn_ipsec_mobile.php");
$tab_array[2] = array(gettext("Pre-Shared Key"), false, "vpn_ipsec_keys.php");
$tab_array[3] = array(gettext("Advanced Settings"), true, "vpn_ipsec_settings.php");
display_top_tabs($tab_array);

require_once('classes/Form.class.php');
$form = new Form;

$section = new Form_Section('Start IPsec in debug mode based on sections selected');

foreach ($ipsec_loglevels as $lkey => $ldescr)
{
	$section->addInput(new Form_Select(
		'ipsec_' . $lkey,
		$ldescr,
		$pconfig['ipsec_' . $lkey],
		array('Silent', 'Audit', 'Control', 'Diag', 'Raw', 'Highest')
	))->setWidth(2);
}

$section->addInput(new Form_StaticText('', ''))->setHelp(
	'Launches IPsec in debug mode so that more verbose logs will be generated to aid in troubleshooting.'
);

$form->add($section);

$section = new Form_Section('IPsec Advanced Settings');

$section->addInput(new Form_Select(
	'uniqueids',
	'Configure Unique IDs as',
	$pconfig['uniqueids'],
	$ipsec_idhandling
))->setHelp(
	'Whether a particular participant ID should be kept unique, with any new IKE_SA using an ID ' .
	'deemed to replace all old ones using that ID. Participant IDs normally are unique, so a new ' .
	'IKE_SA using the same ID is almost invariably intended to replace an old one. ' .
	'The difference between <b>no</b> and <b>never</b> is that the old IKE_SAs will be replaced when receiving an ' .
	'INITIAL_CONTACT notify if the option is no but will ignore these notifies if <b>never</b> is configured. ' .
	'The daemon also accepts the value <b>keep</b> to reject ' .
	'new IKE_SA setups and keep the duplicate established earlier. Defaults to Yes.'
);

$section->addInput(new Form_Checkbox(
	'compression',
	'IP Compression',
	'Enable IPCompression',
	$pconfig['compression']
))->setHelp('IPComp compression of content is proposed on the connection.');

$section->addInput(new Form_Checkbox(
	'enableinterfacesuse',
	'Strict interface binding',
	'Enable strict interface binding',
	$pconfig['enableinterfacesuse']
))->setHelp('Enable strongSwan\'s interfaces_use option to bind specific interfaces only. This option is known to break IPsec with dynamic IP interfaces. This is not recommended at this time.');

$section->addInput(new Form_Checkbox(
	'acceptunencryptedmainmode',
	'Unencrypted payloads in IKEv1 Main Mode',
	'Accept unencrypted ID and HASH payloads in IKEv1 Main Mode',
	$pconfig['acceptunencryptedmainmode']
))->setHelp(
	'Some implementations send the third Main Mode message unencrypted, probably to find the PSKs for the specified ID for authentication.' .
	'This is very similar to Aggressive Mode, and has the same security implications: ' .
	'A passive attacker can sniff the negotiated Identity, and start brute forcing the PSK using the HASH payload.' .
	'It is recommended to keep this option to no, unless you know exactly what the implications are and require compatibility to such devices (for example, some SonicWall boxes).'
);

$section->addInput(new Form_Checkbox(
	'maxmss_enable',
	'Enable Maximum MSS',
	'Enable MSS clamping on VPN traffic',
	$pconfig['maxmss_enable']
))->toggles('.toggle-maxmss', 'collapse');

$group = new Form_Group('Maximum MSS');
$group->addClass('toggle-maxmss collapse');

if (!empty($pconfig['maxmss_enable']))
	$group->addClass('in');

$group->add(new Form_Input(
	'maxmss',
	'Maximum MSS',
	'text',
	($pconfig['maxmss'] ? $pconfig['maxmss'] : '1400')
))->setHelp(
	'Enable MSS clamping on TCP flows over VPN. ' .
	'This helps overcome problems with PMTUD on IPsec VPN links. If left blank, the default value is 1400 bytes. '
);

$section->add($group);

$section->addInput(new Form_Checkbox(
	'unityplugin',
	'Disable Cisco Extensions',
	'Disable Unity Plugin',
	$pconfig['unityplugin']
))->setHelp('Disable Unity Plugin which provides Cisco Extension support as Split-Include, Split-Exclude, Split-Dns, ...');

$section->addInput(new Form_Checkbox(
	'strictcrlpolicy',
	'Strict CRL Checking',
	'Enable strict Certificate Revocation List checking',
	$pconfig['strictcrlpolicy']
))->setHelp('Check this to require availability of a fresh CRL for peer authentication based on RSA signatures to succeed.');

$section->addInput(new Form_Checkbox(
	'makebeforebreak',
	'Make before Break',
	'Initiate IKEv2 reauthentication with a make-before-break',
	$pconfig['makebeforebreak']
))->setHelp('instead of a break-before-make scheme. Make-before-break uses overlapping IKE and CHILD_SA during reauthentication ' .
			'by first recreating all new SAs before deleting the old ones. This behavior can be beneficial to avoid connectivity gaps ' .
			'during reauthentication, but requires support for overlapping SAs by the peer');

$section->addInput(new Form_Checkbox(
	'autoexcludelanaddress',
	'Auto-exclude LAN address',
	'Enable bypass for LAN interface IP',
	!$pconfig['noshuntlaninterfaces']
))->setHelp('Exclude traffic from LAN subnet to LAN IP address from IPsec.');

$form->add($section);

print $form;

?>

<?php include("foot.inc"); ?>
OpenPOWER on IntegriCloud