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1
<?php
2
/*
3
	interfaces.inc
4
	Copyright (C) 2004-2008 Scott Ullrich
5
	Copyright (C) 2008-2009 Ermal Lu?i
6
	All rights reserved.
7

    
8
	function interfaces_wireless_configure is
9
	Copyright (C) 2005 Espen Johansen
10
	All rights reserved.
11

    
12
	originally part of m0n0wall (http://m0n0.ch/wall)
13
	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
14
	All rights reserved.
15

    
16
	Redistribution and use in source and binary forms, with or without
17
	modification, are permitted provided that the following conditions are met:
18

    
19
	1. Redistributions of source code must retain the above copyright notices,
20
	   this list of conditions and the following disclaimer.
21

    
22
	2. Redistributions in binary form must reproduce the above copyright
23
	   notices, this list of conditions and the following disclaimer in the
24
	   documentation and/or other materials provided with the distribution.
25

    
26
	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
27
	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
28
	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
29
	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
30
	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31
	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32
	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33
	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34
	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35
	POSSIBILITY OF SUCH DAMAGE.
36

    
37
	pfSense_BUILDER_BINARIES:	/sbin/dhclient	/bin/sh	/usr/bin/grep	/usr/bin/xargs	/usr/bin/awk	/usr/local/sbin/choparp
38
	pfSense_BUILDER_BINARIES:	/sbin/ifconfig	/sbin/route	/usr/sbin/ngctl	/usr/sbin/arp	/bin/kill	/usr/local/sbin/mpd5
39
	pfSense_BUILDER_BINARIES:	/usr/local/sbin/dhcp6c
40
	pfSense_MODULE:	interfaces
41

    
42
*/
43

    
44
/* include all configuration functions */
45
require_once("globals.inc");
46
require_once("util.inc");
47
require_once("gwlb.inc");
48

    
49
function interfaces_bring_up($interface) {
50
	if(!$interface) {
51
		log_error(gettext("interfaces_bring_up() was called but no variable defined."));
52
		log_error( "Backtrace: " . debug_backtrace() );
53
		return;
54
	}
55
	pfSense_interface_flags($interface, IFF_UP);
56
}
57

    
58
/*
59
 * Return the interface array
60
 */
61
function get_interface_arr($flush = false) {
62
	global $interface_arr_cache;
63

    
64
	/* If the cache doesn't exist, build it */
65
	if (!isset($interface_arr_cache) or $flush)
66
		$interface_arr_cache = pfSense_interface_listget();
67

    
68
	return $interface_arr_cache;
69
}
70

    
71
/*
72
 * does_interface_exist($interface): return true or false if a interface is
73
 * detected.
74
 */
75
function does_interface_exist($interface) {
76
	global $config;
77

    
78
	if(!$interface)
79
		return false;
80

    
81
	$ints = get_interface_arr(true);
82
	if (in_array($interface, $ints))
83
		return true;
84
	else
85
		return false;
86
}
87

    
88
/*
89
 * does_vip_exist($vip): return true or false if a vip is
90
 * configured.
91
 */
92
function does_vip_exist($vip) {
93
	global $config;
94

    
95
	if(!$vip)
96
		return false;
97

    
98

    
99
	switch ($vip['mode']) {
100
	case "carp":
101
		$realif = "{$vip['interface']}_vip{$vip['vhid']}";
102
		if (!does_interface_exist($realif)) {
103
			return false;
104
		}
105
		break;
106
	case "ipalias":
107
		$realif = get_real_interface($vip['interface']);
108
		if (!does_interface_exist($realif)) {
109
			return false;
110
		}
111
		break;
112
	case "proxyarp":
113
		/* XXX: Implement this */
114
	default:
115
		return false;
116
	}
117

    
118
	$ifacedata = pfSense_getall_interface_addresses($realif);
119
	foreach ($ifacedata as $vipips) {
120
		if ($vipips == "{$vip['subnet']}/{$vip['subnet_bits']}")
121
			return true;
122
	}
123

    
124
	return false;
125
}
126

    
127
function interface_netgraph_needed($interface = "wan") {
128
	global $config;
129

    
130
	$found = false;
131
	if (!empty($config['pptpd']) &&
132
		$config['pptpd']['mode'] == "server")
133
		$found = true;
134
	if ($found == false && !empty($config['l2tp']) &&
135
		$config['l2tp']['mode'] == "server")
136
		$found = true;
137
	if ($found == false && is_array($config['pppoes']['pppoe'])) {
138
		foreach ($config['pppoes']['pppoe'] as $pppoe) {
139
			if ($pppoe['mode'] != "server")
140
				continue;
141
			if ($pppoe['interface'] == $interface)
142
				$found = true;
143
				break;
144
		}
145
	}
146
	if ($found == false) {
147
		if (!empty($config['interfaces'][$interface])) {
148
			switch ($config['interfaces'][$interface]['ipaddr']) {
149
			case "ppp":
150
			case "pppoe":
151
			case "l2tp":
152
			case "pptp":
153
				$found = true;
154
				break;
155
			default:
156
				$found = false;
157
				break;
158
			}
159
		}
160
	}
161
	if ($found == false) {
162
		$realif = get_real_interface($interface);
163
		if (is_array($config['ppps']['ppp']) && count($config['ppps']['ppp'])) {
164
			foreach ($config['ppps']['ppp'] as $pppid => $ppp) {
165

    
166
/* This if block doesn't do anything. It can be deleted.
167
PPP interfaces are found above in the previous if ($found == false) block.
168
This block of code is only entered for OPTx interfaces that are configured for PPPoE modem access, so $realif != $ppp['if']
169

    
170
				if ($realif == $ppp['if']) {
171
					$found = true;
172
					break;
173
				}
174
*/
175
				$ports = explode(',',$ppp['ports']);
176
				foreach($ports as $pid => $port){
177
					$port = get_real_interface($port);
178
					if ($realif == $port) {
179
						$found = true;
180
						break;
181
					}
182
					/* Find the parent interfaces of the vlans in the MLPPP configs
183
					* there should be only one element in the array here
184
					* -- this could be better . . . */
185
					$parent_if = get_parent_interface($port);
186
					if ($realif == $parent_if[0]) {
187
						$found = true;
188
						break;
189
					}
190
				}
191
			}
192
		}
193
	}
194

    
195
	if ($found == false) {
196
		$realif = get_real_interface($interface);
197
		pfSense_ngctl_detach("{$realif}:", $realif);
198
	}
199
	/* NOTE: We make sure for this on interface_ppps_configure()
200
	 *	no need to do it here agan.
201
	 *	else
202
	 *		pfSense_ngctl_attach(".", $realif);
203
	 */
204
}
205

    
206
function interfaces_loopback_configure() {
207
	global $g;
208

    
209
	if ($g['platform'] == 'jail')
210
		return;
211
	if($g['booting'])
212
		echo gettext("Configuring loopback interface...");
213
	pfSense_interface_setaddress("lo0", "127.0.0.1");
214
	interfaces_bring_up("lo0");
215
	if($g['booting'])
216
		echo gettext("done.") . "\n";
217
	return 0;
218
}
219

    
220
function interfaces_vlan_configure() {
221
	global $config, $g;
222
	if($g['booting'])
223
		echo gettext("Configuring VLAN interfaces...");
224
	if (is_array($config['vlans']['vlan']) && count($config['vlans']['vlan'])) {
225
		foreach ($config['vlans']['vlan'] as $vlan) {
226
			if(empty($vlan['vlanif']))
227
				$vlan['vlanif'] = "{$vlan['if']}_vlan{$vlan['tag']}";
228
			/* XXX: Maybe we should report any errors?! */
229
			interface_vlan_configure($vlan);
230
		}
231
	}
232
	if($g['booting'])
233
		echo gettext("done.") . "\n";
234
}
235

    
236
function interface_vlan_configure(&$vlan) {
237
	global $config, $g;
238

    
239
	if (!is_array($vlan)) {
240
		log_error(gettext("VLAN: called with wrong options. Problems with config!"));
241
		return;
242
	}
243
	$if = $vlan['if'];
244
	$vlanif  = empty($vlan['vlanif']) ? "{$if}_vlan{$vlan['tag']}" : $vlan['vlanif'];
245
	$tag = $vlan['tag'];
246

    
247
	if (empty($if)) {
248
		log_error(gettext("interface_vlan_configure called with if undefined."));
249
		return;
250
	}
251

    
252
	/* make sure the parent interface is up */
253
	interfaces_bring_up($if);
254
	/* Since we are going to add vlan(4) try to enable all that hardware supports. */
255
	pfSense_interface_capabilities($if, IFCAP_VLAN_HWTAGGING|IFCAP_VLAN_MTU|IFCAP_VLAN_HWFILTER);
256

    
257
	if (!empty($vlanif) && does_interface_exist($vlanif)) {
258
		interface_bring_down($vlanif, true);
259
	} else {
260
		$tmpvlanif = pfSense_interface_create("vlan");
261
		pfSense_interface_rename($tmpvlanif, $vlanif);
262
		pfSense_ngctl_name("{$tmpvlanif}:", $vlanif);
263
	}
264

    
265
	pfSense_vlan_create($vlanif, $if, $tag);
266

    
267
	interfaces_bring_up($vlanif);
268

    
269
	/* invalidate interface cache */
270
	get_interface_arr(true);
271

    
272
	/* XXX: ermal -- for now leave it here at the moment it does not hurt. */
273
	interfaces_bring_up($if);
274

    
275
	return $vlanif;
276
}
277

    
278
function interface_qinq_configure(&$vlan, $fd = NULL) {
279
	global $config, $g;
280

    
281
	if (!is_array($vlan)) {
282
		log_error(sprintf(gettext("QinQ compat VLAN: called with wrong options. Problems with config!%s"), "\n"));
283
		return;
284
	}
285

    
286
	$qinqif = $vlan['if'];
287
	$tag = $vlan['tag'];
288
	if(empty($qinqif)) {
289
		log_error(sprintf(gettext("interface_qinq_configure called with if undefined.%s"), "\n"));
290
		return;
291
	}
292

    
293
	if(!does_interface_exist($qinqif)) {
294
		log_error(sprintf(gettext("interface_qinq_configure called with invalid if.%s"), "\n"));
295
		return;
296
	}
297

    
298
	$vlanif = interface_vlan_configure($vlan);
299

    
300
	if ($fd == NULL) {
301
		$exec = true;
302
		$fd = fopen("{$g['tmp_path']}/netgraphcmd", "w");
303
	} else
304
		$exec = false;
305
	/* make sure the parent is converted to ng_vlan(4) and is up */
306
	interfaces_bring_up($qinqif);
307

    
308
	pfSense_ngctl_attach(".", $qinqif);
309
	if (!empty($vlanif) && does_interface_exist($vlanif)) {
310
		fwrite($fd, "shutdown {$qinqif}qinq:\n");
311
		exec("/usr/sbin/ngctl msg {$qinqif}qinq: gettable", $result);
312
		if (empty($result)) {
313
			fwrite($fd, "mkpeer {$qinqif}: vlan lower downstream\n");
314
			fwrite($fd, "name {$qinqif}:lower {$vlanif}qinq\n");
315
			fwrite($fd, "connect {$qinqif}: {$vlanif}qinq: upper nomatch\n");
316
		}
317
	} else {
318
		fwrite($fd, "mkpeer {$qinqif}: vlan lower downstream\n");
319
		fwrite($fd, "name {$qinqif}:lower {$vlanif}qinq\n");
320
		fwrite($fd, "connect {$qinqif}: {$vlanif}qinq: upper nomatch\n");
321
	}
322

    
323
	/* invalidate interface cache */
324
	get_interface_arr(true);
325

    
326
	if (!stristr($qinqif, "_vlan"))
327
		mwexec("/sbin/ifconfig {$qinqif} promisc\n");
328

    
329
	$macaddr = get_interface_mac($qinqif);
330
	if (!empty($vlan['members'])) {
331
		$members = explode(" ", $vlan['members']);
332
		foreach ($members as $qtag) {
333
			$qinq = array();
334
			$qinq['tag'] = $qtag;
335
			$qinq['if'] = $vlanif;
336
			interface_qinq2_configure($qinq, $fd, $macaddr);
337
		}
338
	}
339
	if ($exec == true) {
340
		fclose($fd);
341
		mwexec("/usr/sbin/ngctl -f {$g['tmp_path']}/netgraphcmd");
342
	}
343

    
344
	interfaces_bring_up($qinqif);
345
	if (!empty($vlan['members'])) {
346
		$members = explode(" ", $vlan['members']);
347
		foreach ($members as $qif)
348
			interfaces_bring_up("{$vlanif}_{$qif}");
349
	}
350

    
351
	return $vlanif;
352
}
353

    
354
function interfaces_qinq_configure() {
355
	global $config, $g;
356
	if($g['booting'])
357
		echo gettext("Configuring QinQ interfaces...");
358
	if (is_array($config['qinqs']['qinqentry']) && count($config['qinqs']['qinqentry'])) {
359
		foreach ($config['qinqs']['qinqentry'] as $qinq) {
360
			/* XXX: Maybe we should report any errors?! */
361
			interface_qinq_configure($qinq);
362
		}
363
	}
364
	if($g['booting'])
365
		echo gettext( "done.") . "\n";
366
}
367

    
368
function interface_qinq2_configure(&$qinq, $fd, $macaddr) {
369
	global $config, $g;
370

    
371
	if (!is_array($qinq)) {
372
		log_error(sprintf(gettext("QinQ compat VLAN: called with wrong options. Problems with config!%s"), "\n"));
373
		return;
374
	}
375

    
376
	$if = $qinq['if'];
377
	$tag = $qinq['tag'];
378
	$vlanif = "{$if}_{$tag}";
379
	if(empty($if)) {
380
		log_error(sprintf(gettext("interface_qinq2_configure called with if undefined.%s"), "\n"));
381
		return;
382
	}
383

    
384
	fwrite($fd, "shutdown {$if}h{$tag}:\n");
385
	fwrite($fd, "mkpeer {$if}qinq: eiface {$if}{$tag} ether\n");
386
	fwrite($fd, "name {$if}qinq:{$if}{$tag} {$if}h{$tag}\n");
387
	fwrite($fd, "msg {$if}qinq: addfilter { vlan={$tag} hook=\"{$if}{$tag}\" }\n");
388
	fwrite($fd, "msg {$if}h{$tag}: setifname \"{$vlanif}\"\n");
389
	fwrite($fd, "msg {$if}h{$tag}: set {$macaddr}\n");
390

    
391
	/* invalidate interface cache */
392
	get_interface_arr(true);
393

    
394
	return $vlanif;
395
}
396

    
397
function interfaces_create_wireless_clones() {
398
	global $config, $g;
399

    
400
	if($g['booting'])
401
		echo gettext("Creating wireless clone interfaces...");
402

    
403
	$iflist = get_configured_interface_list();
404

    
405
	foreach ($iflist as $if) {
406
		$realif = $config['interfaces'][$if]['if'];
407
		if (is_interface_wireless($realif))
408
			interface_wireless_clone(interface_get_wireless_clone($realif), $config['interfaces'][$if]);
409
	}
410

    
411
	if (isset($config['wireless']['clone']) && is_array($config['wireless']['clone']) && count($config['wireless']['clone'])) {
412
		foreach ($config['wireless']['clone'] as $clone) {
413
			if(empty($clone['cloneif']))
414
				continue;
415
			if(does_interface_exist($clone['cloneif']))
416
				continue;
417
			/* XXX: Maybe we should report any errors?! */
418
			interface_wireless_clone($clone['cloneif'], $clone);
419
		}
420
	}
421
	if($g['booting'])
422
		echo gettext("done.") . "\n";
423

    
424
}
425

    
426
function interfaces_bridge_configure($checkmember = 0) {
427
	global $config;
428

    
429
	$i = 0;
430
	if (is_array($config['bridges']['bridged']) && count($config['bridges']['bridged'])) {
431
		foreach ($config['bridges']['bridged'] as $bridge) {
432
			if(empty($bridge['bridgeif']))
433
				$bridge['bridgeif'] = "bridge{$i}";
434
			if ($checkmember == 1) {
435
				$members = explode(',', $bridge['members']);
436
				foreach ($members as $member) {
437
					if (strstr($bridge['if'], "_vip"))
438
						continue 2;
439
					if (!empty($config['interfaces'][$bridge['if']]) && $config['interfaces'][$bridge['if']]['ipaddrv6'] == "track6")  
440
						continue 2;
441
				}
442
			}
443
			else if ($checkmember == 2) {
444
				$members = explode(',', $bridge['members']);
445
				foreach ($members as $member) {
446
					if (!strstr($bridge['if'], "_vip"))
447
						continue 2;
448
					if (empty($config['interfaces'][$bridge['if']]) || $config['interfaces'][$bridge['if']]['ipaddrv6'] != "track6")  
449
						continue 2;
450
				}
451
			}
452
			/* XXX: Maybe we should report any errors?! */
453
			interface_bridge_configure($bridge, $checkmember);
454
			$i++;
455
		}
456
	}
457
}
458

    
459
function interface_bridge_configure(&$bridge, $checkmember = 0) {
460
	global $config, $g;
461

    
462
	if (!is_array($bridge))
463
		return;
464

    
465
	if (empty($bridge['members'])) {
466
		log_error(sprintf(gettext("No members found on %s"), $bridge['bridgeif']));
467
		return;
468
	}
469

    
470
	$members = explode(',', $bridge['members']);
471
	if (!count($members))
472
		return;
473

    
474
	/* Calculate smaller mtu and enforce it */
475
	$smallermtu = 0;
476
	$commonrx = true;
477
	$commontx = true;
478
	$foundgif = false;
479
	foreach ($members as $member) {
480
		$realif = get_real_interface($member);
481
		$opts = pfSense_get_interface_addresses($realif);
482
		$mtu = $opts['mtu'];
483
		if (substr($realif, 0, 3) == "gif") {
484
			$foundgif = true;
485
			if ($checkmember == 1)
486
				return;
487
			if ($mtu <= 1500)
488
				continue;
489
		}
490
		if (!isset($opts['encaps']['txcsum']))
491
			$commontx = false;
492
		if (!isset($opts['encaps']['rxcsum']))
493
			$commonrx = false;
494
		if (!isset($opts['encaps']['tso4']))
495
			$commontso4 = false;
496
		if (!isset($opts['encaps']['tso6']))
497
			$commontso6 = false;
498
		if (!isset($opts['encaps']['lro']))
499
			$commonlro = false;
500
		if ($smallermtu == 0 && !empty($mtu))
501
			$smallermtu = $mtu;
502
		else if (!empty($mtu) && $mtu < $smallermtu)
503
			$smallermtu = $mtu;
504
	}
505
	if ($foundgif == false && $checkmember == 2)
506
		return;
507

    
508
	/* Just in case anything is not working well */
509
	if ($smallermtu == 0)
510
		$smallermtu = 1500;
511

    
512
	$flags = 0;
513
	if ($commonrx === false)
514
		$flags |= IFCAP_RXCSUM;
515
	if ($commontx === false)
516
		$flags |= IFCAP_TXCSUM;
517
	if ($commontso4 === false)
518
		$flags |= IFCAP_TSO4;
519
	if ($commontso6 === false)
520
		$flags |= IFCAP_TSO6;
521
	if ($commonlro === false)
522
		$flags |= IFCAP_LRO;
523

    
524
	if ($g['booting'] || !empty($bridge['bridgeif'])) {
525
		pfSense_interface_destroy($bridge['bridgeif']);
526
		pfSense_interface_create($bridge['bridgeif']);
527
		$bridgeif = escapeshellarg($bridge['bridgeif']);
528
	} else {
529
		$bridgeif = pfSense_interface_create("bridge");
530
		$bridge['bridgeif'] = $bridgeif;
531
	}
532

    
533
	$checklist = get_configured_interface_list();
534

    
535
	/* Add interfaces to bridge */
536
	foreach ($members as $member) {
537
		if (empty($checklist[$member]))
538
			continue;
539
		$realif = get_real_interface($member);
540
		if (!$realif) {
541
			log_error(gettext("realif not defined in interfaces bridge - up"));
542
			continue;
543
		}
544
		/* make sure the parent interface is up */
545
		pfSense_interface_mtu($realif, $smallermtu);
546
		pfSense_interface_capabilities($realif, -$flags);
547
		interfaces_bring_up($realif);
548
		pfSense_bridge_add_member($bridge['bridgeif'], $realif);
549
	}
550

    
551
	if (isset($bridge['enablestp'])) {
552
		/* Choose spanning tree proto */
553
		mwexec("/sbin/ifconfig {$bridgeif} proto " . escapeshellarg($bridge['proto']));
554

    
555
		if (!empty($bridge['stp'])) {
556
			$stpifs = explode(',', $bridge['stp']);
557
			foreach ($stpifs as $stpif) {
558
				$realif = get_real_interface($stpif);
559
				mwexec("/sbin/ifconfig {$bridgeif} stp {$realif}");
560
			}
561
		}
562
		if (!empty($bridge['maxage']))
563
			mwexec("/sbin/ifconfig {$bridgeif} maxage " . escapeshellarg($bridge['maxage']));
564
		if (!empty($bridge['fwdelay']))
565
			mwexec("/sbin/ifconfig {$bridgeif} fwddelay " . escapeshellarg($bridge['fwdelay']));
566
		if (!empty($bridge['hellotime']))
567
			mwexec("/sbin/ifconfig {$bridgeif} hellotime " . escapeshellarg($bridge['hellotime']));
568
		if (!empty($bridge['priority']))
569
			mwexec("/sbin/ifconfig {$bridgeif} priority " . escapeshellarg($bridge['priority']));
570
		if (!empty($bridge['holdcnt']))
571
			mwexec("/sbin/ifconfig {$bridgeif} holdcnt " . escapeshellarg($bridge['holdcnt']));
572
		if (!empty($bridge['ifpriority'])) {
573
			$pconfig = explode(",", $bridge['ifpriority']);
574
			$ifpriority = array();
575
			foreach ($pconfig as $cfg) {
576
				$embcfg = explode_assoc(":", $cfg);
577
				foreach ($embcfg as $key => $value)
578
					$ifpriority[$key] = $value;
579
			}
580
			foreach ($ifpriority as $key => $value) {
581
				$realif = get_real_interface($key);
582
				mwexec("/sbin/ifconfig ${bridgeif} ifpriority {$realif} " . escapeshellarg($value));
583
			}
584
		}
585
		if (!empty($bridge['ifpathcost'])) {
586
			$pconfig = explode(",", $bridge['ifpathcost']);
587
			$ifpathcost = array();
588
			foreach ($pconfig as $cfg) {
589
				$embcfg = explode_assoc(":", $cfg);
590
				foreach ($embcfg as $key => $value)
591
					$ifpathcost[$key] = $value;
592
			}
593
			foreach ($ifpathcost as $key => $value) {
594
				$realif = get_real_interface($key);
595
				mwexec("/sbin/ifconfig ${bridgeif} ifpathcost {$realif} " . escapeshellarg($value));
596
			}
597
		}
598
	}
599

    
600
	if ($bridge['maxaddr'] <> "")
601
		mwexec("/sbin/ifconfig {$bridgeif} maxaddr {$bridge['maxaddr']}");
602
	if ($bridge['timeout'] <> "")
603
		mwexec("/sbin/ifconfig {$bridgeif} timeout {$bridge['timeout']}");
604
	if ($bridge['span'] <> "") {
605
		$realif = get_real_interface($bridge['span']);
606
		mwexec("/sbin/ifconfig {$bridgeif} span {$realif}");
607
	}
608
	if (!empty($bridge['edge'])) {
609
		$edgeifs = explode(',', $bridge['edge']);
610
		foreach ($edgeifs as $edgeif) {
611
			$realif = get_real_interface($edgeif);
612
			mwexec("/sbin/ifconfig {$bridgeif} edge {$realif}");
613
		}
614
	}
615
	if (!empty($bridge['autoedge'])) {
616
		$edgeifs = explode(',', $bridge['autoedge']);
617
		foreach ($edgeifs as $edgeif) {
618
			$realif = get_real_interface($edgeif);
619
			mwexec("/sbin/ifconfig {$bridgeif} -autoedge {$realif}");
620
		}
621
	}
622
	if (!empty($bridge['ptp'])) {
623
		$ptpifs = explode(',', $bridge['ptp']);
624
		foreach ($ptpifs as $ptpif) {
625
			$realif = get_real_interface($ptpif);
626
			mwexec("/sbin/ifconfig {$bridgeif} ptp {$realif}");
627
		}
628
	}
629
	if (!empty($bridge['autoptp'])) {
630
		$ptpifs = explode(',', $bridge['autoptp']);
631
		foreach ($ptpifs as $ptpif) {
632
			$realif = get_real_interface($ptpif);
633
			mwexec("/sbin/ifconfig {$bridgeif} -autoptp {$realif}");
634
		}
635
	}
636
	if (!empty($bridge['static'])) {
637
		$stickyifs = explode(',', $bridge['static']);
638
		foreach ($stickyifs as $stickyif) {
639
			$realif = get_real_interface($stickyif);
640
			mwexec("/sbin/ifconfig {$bridgeif} sticky {$realif}");
641
		}
642
	}
643
	if (!empty($bridge['private'])) {
644
		$privateifs = explode(',', $bridge['private']);
645
		foreach ($privateifs as $privateif) {
646
			$realif = get_real_interface($privateif);
647
			mwexec("/sbin/ifconfig {$bridgeif} private {$realif}");
648
		}
649
	}
650

    
651
	if ($bridge['bridgeif'])
652
		interfaces_bring_up($bridge['bridgeif']);
653
	else
654
		log_error(gettext("bridgeif not defined -- could not bring interface up"));
655
}
656

    
657
function interface_bridge_add_member($bridgeif, $interface) {
658

    
659
	if (!does_interface_exist($bridgeif) || !does_interface_exist($interface))
660
		return;
661

    
662
	$mtu = get_interface_mtu($bridgeif);
663
	$mtum = get_interface_mtu($interface);
664

    
665
	if ($mtu != $mtum && !(substr($interface, 0, 3) == "gif" && $mtu <= 1500))
666
		pfSense_interface_mtu($interface, $mtu);
667

    
668
	$options = pfSense_get_interface_addresses($bridgeif);
669
	$flags = 0;
670
	if (!isset($options['encaps']['txcsum']))
671
		$flags |= IFCAP_TXCSUM;
672

    
673
	if (!isset($options['encaps']['rxcsum']))
674
		$flags |= IFCAP_RXCSUM;
675

    
676
	pfSense_interface_capabilities($interface, -$flags);
677

    
678
	interfaces_bring_up($interface);
679
	pfSense_bridge_add_member($bridgeif, $interface);
680
}
681

    
682
function interfaces_lagg_configure() {
683
	global $config, $g;
684
	if($g['booting'])
685
		echo gettext("Configuring LAGG interfaces...");
686
	$i = 0;
687
	if (is_array($config['laggs']['lagg']) && count($config['laggs']['lagg'])) {
688
		foreach ($config['laggs']['lagg'] as $lagg) {
689
			if(empty($lagg['laggif']))
690
				$lagg['laggif'] = "lagg{$i}";
691
			/* XXX: Maybe we should report any errors?! */
692
			interface_lagg_configure($lagg);
693
			$i++;
694
		}
695
	}
696
	if($g['booting'])
697
		echo gettext("done.") . "\n";
698
}
699

    
700
function interface_lagg_configure(&$lagg) {
701
	global $config, $g;
702

    
703
	if (!is_array($lagg))
704
		return -1;
705

    
706
	$members = explode(',', $lagg['members']);
707
	if (!count($members))
708
		return -1;
709

    
710
	if ($g['booting'] || !(empty($lagg['laggif']))) {
711
		pfSense_interface_destroy($lagg['laggif']);
712
		pfSense_interface_create($lagg['laggif']);
713
		$laggif = $lagg['laggif'];
714
	} else
715
		$laggif = pfSense_interface_create("lagg");
716

    
717
	/* Calculate smaller mtu and enforce it */
718
	$smallermtu = 0;
719
	foreach ($members as $member) {
720
		$opts = pfSense_get_interface_addresses($member);
721
		$mtu = $opts['mtu'];
722
		if (!isset($opts['encaps']['txcsum']))
723
			$commontx = false;
724
		if (!isset($opts['encaps']['rxcsum']))
725
			$commonrx = false;
726
		if (!isset($opts['encaps']['tso4']))
727
			$commontso4 = false;
728
		if (!isset($opts['encaps']['tso6']))
729
			$commontso6 = false;
730
		if (!isset($opts['encaps']['lro']))
731
			$commonlro = false;
732
		if ($smallermtu == 0 && !empty($mtu))
733
			$smallermtu = $mtu;
734
		else if (!empty($mtu) && $mtu < $smallermtu)
735
			$smallermtu = $mtu;
736
	}
737

    
738
	/* Just in case anything is not working well */
739
	if ($smallermtu == 0)
740
		$smallermtu = 1500;
741

    
742
	$flags = 0;
743
	if ($commonrx === false)
744
		$flags |= IFCAP_RXCSUM;
745
	if ($commontx === false)
746
		$flags |= IFCAP_TXCSUM;
747
	if ($commontso4 === false)
748
		$flags |= IFCAP_TSO4;
749
	if ($commontso6 === false)
750
		$flags |= IFCAP_TSO6;
751
	if ($commonlro === false)
752
		$flags |= IFCAP_LRO;
753

    
754
	$checklist = get_interface_list();
755

    
756
	foreach ($members as $member) {
757
		if (!array_key_exists($member, $checklist))
758
			continue;
759
		/* make sure the parent interface is up */
760
		pfSense_interface_mtu($member, $smallermtu);
761
		pfSense_interface_capabilities($member, -$flags);
762
		interfaces_bring_up($member);
763
		mwexec("/sbin/ifconfig {$laggif} laggport {$member}");
764
	}
765

    
766
	mwexec("/sbin/ifconfig {$laggif} laggproto {$lagg['proto']}");
767

    
768
	interfaces_bring_up($laggif);
769

    
770
	return $laggif;
771
}
772

    
773
function interfaces_gre_configure($checkparent = 0) {
774
	global $config;
775

    
776
	if (is_array($config['gres']['gre']) && count($config['gres']['gre'])) {
777
		foreach ($config['gres']['gre'] as $i => $gre) {
778
			if(empty($gre['greif']))
779
				$gre['greif'] = "gre{$i}";
780
			if ($checkparent == 1) {
781
				if (strstr($gre['if'], "_vip"))
782
					continue;
783
				if (!empty($config['interfaces'][$gre['if']]) && $config['interfaces'][$gre['if']]['ipaddrv6'] == "track6")  
784
					continue;
785
			}
786
			else if ($checkparent == 2) {
787
				if (!strstr($gre['if'], "_vip"))
788
					continue;
789
				if (empty($config['interfaces'][$gre['if']]) || $config['interfaces'][$gre['if']]['ipaddrv6'] != "track6")  
790
					continue;
791
			}
792
			/* XXX: Maybe we should report any errors?! */
793
			interface_gre_configure($gre);
794
		}
795
	}
796
}
797

    
798
/* NOTE: $grekey is not used but useful for passing this function to array_walk. */
799
function interface_gre_configure(&$gre, $grekey = "") {
800
	global $config, $g;
801

    
802
	if (!is_array($gre))
803
		return -1;
804

    
805
	$realif = get_real_interface($gre['if']);
806
	$realifip = get_interface_ip($gre['if']);
807

    
808
	/* make sure the parent interface is up */
809
	interfaces_bring_up($realif);
810

    
811
	if ($g['booting'] || !(empty($gre['greif']))) {
812
		pfSense_interface_destroy($gre['greif']);
813
		pfSense_interface_create($gre['greif']);
814
		$greif = $gre['greif'];
815
	} else
816
		$greif = pfSense_interface_create("gre");
817

    
818
	/* Do not change the order here for more see gre(4) NOTES section. */
819
	mwexec("/sbin/ifconfig {$greif} tunnel {$realifip} {$gre['remote-addr']}");
820
	if((is_ipaddrv6($gre['tunnel-local-addr'])) || (is_ipaddrv6($gre['tunnel-remote-addr']))) {
821
		mwexec("/sbin/ifconfig {$greif} inet6 {$gre['tunnel-local-addr']} {$gre['tunnel-remote-addr']} prefixlen /{$gre['tunnel-remote-net']} ");
822
	} else {
823
		mwexec("/sbin/ifconfig {$greif} {$gre['tunnel-local-addr']} {$gre['tunnel-remote-addr']} netmask " . gen_subnet_mask($gre['tunnel-remote-net']));
824
	}
825
	if (isset($gre['link0']))
826
		pfSense_interface_flags($greif, IFF_LINK0);
827
	if (isset($gre['link1']))
828
		pfSense_interface_flags($greif, IFF_LINK1);
829
	if (isset($gre['link2']))
830
		pfSense_interface_flags($greif, IFF_LINK2);
831

    
832
	if($greif)
833
		interfaces_bring_up($greif);
834
	else
835
		log_error(gettext("Could not bring greif up -- variable not defined."));
836

    
837
	if (isset($gre['link1']) && $gre['link1'])
838
		mwexec("/sbin/route add {$gre['tunnel-remote-addr']}/{$gre['tunnel-remote-net']} {$gre['tunnel-local-addr']}");
839
	if(is_ipaddrv4($gre['tunnel-remote-addr']))
840
		file_put_contents("{$g['tmp_path']}/{$greif}_router", $gre['tunnel-remote-addr']);
841
	if(is_ipaddrv6($gre['tunnel-remote-addr']))
842
		file_put_contents("{$g['tmp_path']}/{$greif}_routerv6", $gre['tunnel-remote-addr']);
843

    
844
	return $greif;
845
}
846

    
847
function interfaces_gif_configure($checkparent = 0) {
848
	global $config;
849

    
850
	if (is_array($config['gifs']['gif']) && count($config['gifs']['gif'])) {
851
		foreach ($config['gifs']['gif'] as $i => $gif) {
852
			if(empty($gif['gifif']))
853
				$gre['gifif'] = "gif{$i}";
854
			if ($checkparent == 1) {
855
				if (strstr($gif['if'], "_vip"))
856
					continue;
857
				if (!empty($config['interfaces'][$gif['if']]) && $config['interfaces'][$gif['if']]['ipaddrv6'] == "track6")  
858
					continue;
859
			}
860
			else if ($checkparent == 2) {
861
				if (!strstr($gre['if'], "_vip"))
862
					continue;
863
				if (empty($config['interfaces'][$gif['if']]) || $config['interfaces'][$gif['if']]['ipaddrv6'] != "track6")  
864
					continue;
865
			}
866
			/* XXX: Maybe we should report any errors?! */
867
			interface_gif_configure($gif);
868
		}
869
	}
870
}
871

    
872
/* NOTE: $gifkey is not used but useful for passing this function to array_walk. */
873
function interface_gif_configure(&$gif, $gifkey = "") {
874
	global $config, $g;
875

    
876
	if (!is_array($gif))
877
		return -1;
878

    
879
	$realif = get_real_interface($gif['if']);
880
	$ipaddr = $gif['ipaddr'];
881

    
882
	if (is_ipaddrv4($gif['remote-addr'])) {
883
		if (is_ipaddrv4($ipaddr))
884
			$realifip = $ipaddr;
885
		else
886
			$realifip = get_interface_ip($gif['if']);
887
		$realifgw = get_interface_gateway($gif['if']);
888
	} else if (is_ipaddrv6($gif['remote-addr'])) {
889
		if (is_ipaddrv6($ipaddr))
890
			$realifip = $ipaddr;
891
		else
892
			$realifip = get_interface_ipv6($gif['if']);
893
		$realifgw = get_interface_gatewayv6($gif['if']);
894
	}
895
	/* make sure the parent interface is up */
896
	if($realif)
897
		interfaces_bring_up($realif);
898
	else
899
		log_error(gettext("could not bring realif up -- variable not defined -- interface_gif_configure()"));
900

    
901
	if ($g['booting'] || !(empty($gif['gifif']))) {
902
		pfSense_interface_destroy($gif['gifif']);
903
		pfSense_interface_create($gif['gifif']);
904
		$gifif = $gif['gifif'];
905
	} else
906
		$gifif = pfSense_interface_create("gif");
907

    
908
	/* Do not change the order here for more see gif(4) NOTES section. */
909
	mwexec("/sbin/ifconfig {$gifif} tunnel {$realifip} {$gif['remote-addr']}");
910
	if((is_ipaddrv6($gif['tunnel-local-addr'])) || (is_ipaddrv6($gif['tunnel-remote-addr']))) {
911
		mwexec("/sbin/ifconfig {$gifif} inet6 {$gif['tunnel-local-addr']} {$gif['tunnel-remote-addr']} prefixlen /{$gif['tunnel-remote-net']} ");
912
	} else {
913
		mwexec("/sbin/ifconfig {$gifif} {$gif['tunnel-local-addr']} {$gif['tunnel-remote-addr']} netmask " . gen_subnet_mask($gif['tunnel-remote-net']));
914
	}
915
	if (isset($gif['link0']))
916
		pfSense_interface_flags($gifif, IFF_LINK0);
917
	if (isset($gif['link1']))
918
		pfSense_interface_flags($gifif, IFF_LINK1);
919
	if($gifif)
920
		interfaces_bring_up($gifif);
921
	else
922
		log_error(gettext("could not bring gifif up -- variable not defined"));
923

    
924
	$iflist = get_configured_interface_list();
925
	foreach($iflist as $ifname) {
926
		if($config['interfaces'][$ifname]['if'] == $gifif) {
927
			if(get_interface_gateway($ifname)) {
928
				system_routing_configure($ifname);
929
				break;
930
			}
931
			if(get_interface_gateway_v6($ifname)) {
932
				system_routing_configure($ifname);
933
				break;
934
			}
935
		}
936
	}
937

    
938

    
939
	if(is_ipaddrv4($gif['tunnel-remote-addr']))
940
		file_put_contents("{$g['tmp_path']}/{$gifif}_router", $gif['tunnel-remote-addr']);
941
	if(is_ipaddrv6($gif['tunnel-remote-addr']))
942
		file_put_contents("{$g['tmp_path']}/{$gifif}_routerv6", $gif['tunnel-remote-addr']);
943

    
944
	if (is_ipaddrv4($realifgw)) {
945
		mwexec("route change -host {$gif['remote-addr']} {$realifgw}");
946
	}
947
	if (is_ipaddrv6($realifgw)) {
948
		mwexec("route change -host -inet6 {$gif['remote-addr']} {$realifgw}");
949
	}
950

    
951
	return $gifif;
952
}
953

    
954
function interfaces_configure() {
955
	global $config, $g;
956

    
957
	if ($g['platform'] == 'jail')
958
		return;
959

    
960
	/* Set up our loopback interface */
961
	interfaces_loopback_configure();
962

    
963
	/* create the unconfigured wireless clones */
964
	interfaces_create_wireless_clones();
965

    
966
	/* set up LAGG virtual interfaces */
967
	interfaces_lagg_configure();
968

    
969
	/* set up VLAN virtual interfaces */
970
	interfaces_vlan_configure();
971

    
972
	interfaces_qinq_configure();
973

    
974
	$iflist = get_configured_interface_with_descr();
975
	$delayed_list = array();
976
	$bridge_list = array();
977
	$track6_list = array();
978

    
979
	/* This is needed to speedup interfaces on bootup. */
980
	$reload = false;
981
	if (!$g['booting'])
982
		$reload = true;
983

    
984
	foreach($iflist as $if => $ifname) {
985
		$realif = $config['interfaces'][$if]['if'];
986
		if (strstr($realif, "bridge"))
987
			$bridge_list[$if] = $ifname;
988
		else if (strstr($realif, "gre"))
989
			$delayed_list[$if] = $ifname;
990
		else if (strstr($realif, "gif"))
991
			$delayed_list[$if] = $ifname;
992
		else if (strstr($realif, "ovpn")) {
993
			//echo "Delaying OpenVPN interface configuration...done.\n";
994
			continue;
995
		} else if (!empty($config['interfaces'][$if]['ipaddrv6']) && $config['interfaces'][$if]['ipaddrv6'] == "track6") {
996
			$track6_list[$if] = $ifname;
997
		} else {
998
			if ($g['booting'])
999
				printf(gettext("Configuring %s interface..."), $ifname);
1000

    
1001
			if($g['debug'])
1002
				log_error(sprintf(gettext("Configuring %s"), $ifname));
1003
			interface_configure($if, $reload);
1004
			if ($g['booting'])
1005
				echo gettext( "done.") . "\n";
1006
		}
1007
	}
1008

    
1009
	/*
1010
	 * NOTE: The following function parameter consists of
1011
	 *	1 - Do not load gre/gif/bridge with parent/member as vip
1012
	 *	2 - Do load gre/gif/bridge with parent/member as vip
1013
	 */
1014

    
1015
	/* set up GRE virtual interfaces */
1016
	interfaces_gre_configure(1);
1017

    
1018
	/* set up GIF virtual interfaces */
1019
	interfaces_gif_configure(1);
1020

    
1021
	/* set up BRIDGe virtual interfaces */
1022
	interfaces_bridge_configure(1);
1023

    
1024
	foreach ($track6_list as $if => $ifname) {
1025
		if ($g['booting'])
1026
			printf(gettext("Configuring %s interface..."), $ifname);
1027
		if ($g['debug'])
1028
			log_error(sprintf(gettext("Configuring %s"), $ifname));
1029

    
1030
		interface_configure($if, $reload);
1031

    
1032
		if ($g['booting'])
1033
			echo gettext("done.") . "\n";
1034
	}
1035

    
1036
	/* bring up vip interfaces */
1037
	interfaces_vips_configure();
1038

    
1039
	/* set up GRE virtual interfaces */
1040
	interfaces_gre_configure(2);
1041

    
1042
	/* set up GIF virtual interfaces */
1043
	interfaces_gif_configure(2);
1044

    
1045
	foreach ($delayed_list as $if => $ifname) {
1046
		if ($g['booting'])
1047
			printf(gettext("Configuring %s interface..."), $ifname);
1048
		if ($g['debug'])
1049
			log_error(sprintf(gettext("Configuring %s"), $ifname));
1050

    
1051
		interface_configure($if, $reload);
1052

    
1053
		if ($g['booting'])
1054
			echo gettext("done.") . "\n";
1055
	}
1056

    
1057
	/* set up BRIDGe virtual interfaces */
1058
	interfaces_bridge_configure(2);
1059

    
1060
	foreach ($bridge_list as $if => $ifname) {
1061
		if ($g['booting'])
1062
			printf(gettext("Configuring %s interface..."), $ifname);
1063
		if($g['debug'])
1064
			log_error(sprintf(gettext("Configuring %s"), $ifname));
1065

    
1066
		interface_configure($if, $reload);
1067

    
1068
		if ($g['booting'])
1069
			echo gettext("done.") . "\n";
1070
	}
1071

    
1072
	/* configure interface groups */
1073
	interfaces_group_setup();
1074

    
1075
	if (!$g['booting']) {
1076
		/* reconfigure static routes (kernel may have deleted them) */
1077
		system_routing_configure();
1078

    
1079
		/* reload IPsec tunnels */
1080
		vpn_ipsec_configure();
1081

    
1082
		/* reload dhcpd (interface enabled/disabled status may have changed) */
1083
		services_dhcpd_configure();
1084

    
1085
		/* restart dnsmasq */
1086
		services_dnsmasq_configure();
1087

    
1088
		/* reload captive portal */
1089
		if (function_exists('captiveportal_init_rules'))
1090
			captiveportal_init_rules();
1091
	}
1092

    
1093
	return 0;
1094
}
1095

    
1096
function interface_reconfigure($interface = "wan", $reloadall = false) {
1097
	interface_bring_down($interface);
1098
	interface_configure($interface, $reloadall);
1099
}
1100

    
1101
function interface_vip_bring_down($vip) {
1102
	global $g;
1103

    
1104
	switch ($vip['mode']) {
1105
	case "proxyarp":
1106
		$vipif = get_real_interface($vip['interface']);
1107
		if (file_exists("{$g['varrun_path']}/choparp_{$vipif}.pid"))
1108
			killbypid("{$g['varrun_path']}/choparp_{$vipif}.pid");
1109
		break;
1110
	case "ipalias":
1111
		$vipif = get_real_interface($vip['interface']);
1112
		if (does_interface_exist($vipif)) {
1113
			if (is_ipaddrv6($vip['subnet']))
1114
				mwexec("/sbin/ifconfig {$vipif} inet6 {$vip['subnet']} -alias");
1115
			else
1116
				pfSense_interface_deladdress($vipif, $vip['subnet']);
1117
		}
1118
		break;
1119
	case "carp":
1120
		$vipif = "{$vip['interface']}_vip{$vip['vhid']}";
1121
		if (does_interface_exist($vipif))
1122
			pfSense_interface_destroy($vipif);
1123
		break;
1124
	}
1125
}
1126

    
1127
function interface_bring_down($interface = "wan", $destroy = false, $ifacecfg = false) {
1128
	global $config, $g;
1129

    
1130
	if (!isset($config['interfaces'][$interface]))
1131
		return;
1132

    
1133
	if ($g['debug'])
1134
		log_error("Calling interface down for interface {$interface}, destroy is " . (($destroy) ? 'true' : 'false'));
1135

    
1136
	if ($ifacecfg === false) {
1137
		$ifcfg = $config['interfaces'][$interface];
1138
		$ppps = $config['ppps']['ppp'];
1139
		$realif = get_real_interface($interface);
1140
	} elseif (!is_array($ifacecfg)) {
1141
		log_error(gettext("Wrong parameters used during interface_bring_down"));
1142
	} else {
1143
		$ifcfg = $ifacecfg['ifcfg'];
1144
		$ppps = $ifacecfg['ppps'];
1145
		if (isset($ifacecfg['ifcfg']['realif']))
1146
			$realif = $ifacecfg['ifcfg']['realif'];
1147
		else
1148
			$realif = get_real_interface($interface);
1149
	}
1150

    
1151
	switch ($ifcfg['ipaddr']) {
1152
	case "ppp":
1153
	case "pppoe":
1154
	case "pptp":
1155
	case "l2tp":
1156
		if (is_array($ppps) && count($ppps)) {
1157
			foreach ($ppps as $pppid => $ppp) {
1158
				if ($realif == $ppp['if']) {
1159
					if (isset($ppp['ondemand']) && !$destroy){
1160
						send_event("interface reconfigure {$interface}");
1161
						break;
1162
					}
1163
					if (file_exists("{$g['varrun_path']}/{$ppp['type']}_{$interface}.pid")) {
1164
						killbypid("{$g['varrun_path']}/{$ppp['type']}_{$interface}.pid");
1165
						sleep(2);
1166
					}
1167
					unlink_if_exists("{$g['varetc_path']}/mpd_{$interface}.conf");
1168
					break;
1169
				}
1170
			}
1171
		}
1172
		break;
1173
	case "dhcp":
1174
		$pid = find_dhclient_process($realif);
1175
		if($pid)
1176
			posix_kill($pid, SIGTERM);
1177
		sleep(1);
1178
		unlink_if_exists("{$g['varetc_path']}/dhclient_{$interface}.conf");
1179
		if(does_interface_exist("$realif")) {
1180
			mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " delete", true);
1181
			if ($destroy == true)
1182
				pfSense_interface_flags($realif, -IFF_UP);
1183
			mwexec("/usr/sbin/arp -d -i {$realif} -a");
1184
		}
1185
		break;
1186
	default:
1187
		if(does_interface_exist("$realif")) {
1188
			mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " delete", true);
1189
			if ($destroy == true)
1190
				pfSense_interface_flags($realif, -IFF_UP);
1191
			mwexec("/usr/sbin/arp -d -i {$realif} -a");
1192
		}
1193
		break;
1194
	}
1195

    
1196
	switch ($ifcfg['ipaddrv6']) {
1197
	case "slaac":
1198
	case "dhcp6":
1199
		$pidv6 = find_dhcp6c_process($realif);
1200
		if($pidv6)
1201
			posix_kill($pidv6, SIGTERM);
1202
		sleep(3);
1203
		unlink_if_exists("{$g['varetc_path']}/dhcp6c_{$interface}.conf");
1204
		if (does_interface_exist("$realif")) {
1205
			$ip6 = get_interface_ipv6($interface);
1206
			if (is_ipaddrv6($ip6))
1207
				mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " inet6 {$ip6} delete", true);
1208
			if ($destroy == true)
1209
				pfSense_interface_flags($realif, -IFF_UP);
1210
			mwexec("/usr/sbin/arp -d -i {$realif} -a");
1211
		}
1212
		break;
1213
	case "6rd":
1214
	case "6to4":
1215
		$realif = "{$interface}_stf";
1216
		if(does_interface_exist("$realif")) {
1217
			$ip6 = get_interface_ipv6($interface);
1218
			if (is_ipaddrv6($ip6))
1219
				mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " inet6 {$ip6} delete", true);
1220
			if ($destroy == true)
1221
				pfSense_interface_flags($realif, -IFF_UP);
1222
		}
1223
		break;
1224
	default:
1225
		if(does_interface_exist("$realif")) {
1226
			$ip6 = get_interface_ipv6($interface);
1227
			if (is_ipaddrv6($ip6))
1228
				mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " inet6 {$ip6} delete", true);
1229
			if (!empty($ifcfg['ipaddrv6']) && is_ipaddrv6($ifcfg['ipaddrv6']))
1230
				mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " inet6 {$ifcfg['ipaddrv6']} delete", true);
1231
			if ($destroy == true)
1232
				pfSense_interface_flags($realif, -IFF_UP);
1233
			mwexec("/usr/sbin/arp -d -i {$realif} -a");
1234
		}
1235
		break;
1236
	}
1237

    
1238
	if (file_exists("{$g['tmp_path']}/{$realif}_router"))
1239
		$old_router = trim(file_get_contents("{$g['tmp_path']}/{$realif}_router"));
1240
//	log_error("Checking for old router states: {$g['tmp_path']}/{$realif}_router = {$old_router}");
1241
	if (!empty($old_router)) {
1242
		log_error("Clearing states to old gateway {$old_router}.");
1243
		mwexec("/sbin/pfctl -i {$realif} -Fs -G {$old_router}");
1244
	}
1245

    
1246
	/* remove interface up file if it exists */
1247
	unlink_if_exists("{$g['tmp_path']}/{$realif}up");
1248
	unlink_if_exists("{$g['vardb_path']}/{$interface}ip");
1249
	unlink_if_exists("{$g['vardb_path']}/{$interface}ipv6");
1250
	unlink_if_exists("{$g['tmp_path']}/{$realif}_router");
1251
	unlink_if_exists("{$g['tmp_path']}/{$realif}_routerv6");
1252
	unlink_if_exists("{$g['varetc_path']}/nameserver_{$realif}");
1253
	unlink_if_exists("{$g['varetc_path']}/searchdomain_{$realif}");
1254

    
1255
	/* hostapd and wpa_supplicant do not need to be running when the interface is down.
1256
	 * They will also use 100% CPU if running after the wireless clone gets deleted. */
1257
	if (is_array($ifcfg['wireless'])) {
1258
		kill_hostapd($realif);
1259
		mwexec(kill_wpasupplicant($realif));
1260
	}
1261

    
1262
	if ($destroy == true) {
1263
		if (preg_match("/^[a-z0-9]+_vip|^tun|^ovpn|^gif|^gre|^lagg|^bridge|vlan|_stf$/i", $realif))
1264
			pfSense_interface_destroy($realif);
1265
	}
1266

    
1267
	return;
1268
}
1269

    
1270
function interfaces_ptpid_used($ptpid) {
1271
	global $config;
1272

    
1273
	if (is_array($config['ppps']['ppp']))
1274
		foreach ($config['ppps']['ppp'] as & $settings)
1275
			if ($ptpid == $settings['ptpid'])
1276
				return true;
1277

    
1278
	return false;
1279
}
1280

    
1281
function interfaces_ptpid_next() {
1282

    
1283
	$ptpid = 0;
1284
	while(interfaces_ptpid_used($ptpid))
1285
		$ptpid++;
1286

    
1287
	return $ptpid;
1288
}
1289

    
1290
function getMPDCRONSettings($pppif) {
1291
	global $config;
1292

    
1293
	$cron_cmd_file = "{$g['varetc_path']}/pppoe_restart_{$pppif}";
1294
	if (is_array($config['cron']['item'])) {
1295
		foreach ($config['cron']['item'] as $i => $item) {
1296
			if (stripos($item['command'], $cron_cmd_file) !== false)
1297
				return array("ID" => $i, "ITEM" => $item);
1298
		}
1299
	}
1300

    
1301
	return NULL;
1302
}
1303

    
1304
function handle_pppoe_reset($post_array) {
1305
	global $config, $g;
1306

    
1307
	$pppif = "{$post_array['type']}{$post_array['ptpid']}";
1308
	$cron_cmd_file = "{$g['varetc_path']}/pppoe_restart_{$pppif}";
1309

    
1310
	if (!is_array($config['cron']['item']))
1311
		$config['cron']['item'] = array();
1312

    
1313
	$itemhash = getMPDCRONSettings($pppif);
1314

    
1315
	// reset cron items if necessary and return
1316
	if (empty($post_array['pppoe-reset-type'])) {
1317
		if (isset($itemhash))
1318
			unset($config['cron']['item'][$itemhash['ID']]);
1319
		sigkillbypid("{$g['varrun_path']}/cron.pid", "HUP");
1320
		return;
1321
	}
1322

    
1323
	if (empty($itemhash))
1324
		$itemhash = array();
1325
	$item = array();
1326
	if (isset($post_array['pppoe-reset-type']) && $post_array['pppoe-reset-type'] == "custom") {
1327
		$item['minute'] = $post_array['pppoe_resetminute'];
1328
		$item['hour'] = $post_array['pppoe_resethour'];
1329
		if (isset($post_array['pppoe_resetdate']) && $post_array['pppoe_resetdate'] <> "") {
1330
			$date = explode("/", $post_array['pppoe_resetdate']);
1331
			$item['mday'] = $date[1];
1332
			$item['month'] = $date[0];
1333
		} else {
1334
			$item['mday'] = "*";
1335
			$item['month'] = "*";
1336
		}
1337
		$item['wday'] = "*";
1338
		$item['who'] = "root";
1339
		$item['command'] = $cron_cmd_file;
1340
	} else if (isset($post_array['pppoe-reset-type']) && $post_array['pppoe-reset-type'] == "preset") {
1341
		switch ($post_array['pppoe_pr_preset_val']) {
1342
		case "monthly":
1343
			$item['minute'] = "0";
1344
			$item['hour'] = "0";
1345
			$item['mday'] = "1";
1346
			$item['month'] = "*";
1347
			$item['wday'] = "*";
1348
			break;
1349
	        case "weekly":
1350
			$item['minute'] = "0";
1351
			$item['hour'] = "0";
1352
			$item['mday'] = "*";
1353
			$item['month'] = "*";
1354
			$item['wday'] = "0";
1355
			break;
1356
		case "daily":
1357
			$item['minute'] = "0";
1358
			$item['hour'] = "0";
1359
			$item['mday'] = "*";
1360
			$item['month'] = "*";
1361
			$item['wday'] = "*";
1362
			break;
1363
		case "hourly":
1364
			$item['minute'] = "0";
1365
			$item['hour'] = "*";
1366
			$item['mday'] = "*";
1367
			$item['month'] = "*";
1368
			$item['wday'] = "*";
1369
			break;
1370
		} // end switch
1371
		$item['who'] = "root";
1372
		$item['command'] = $cron_cmd_file;
1373
	}
1374
	if (empty($item))
1375
		return;
1376
	if (isset($item['ID']))
1377
		$config['cron']['item'][$item['ID']] = $item;
1378
	else
1379
		$config['cron']['item'][] = $item;
1380
}
1381

    
1382
/*
1383
 * This function can configure PPPoE, MLPPP (PPPoE), PPTP.
1384
 * It writes the mpd config file to /var/etc every time the link is opened.
1385
 */
1386
function interface_ppps_configure($interface) {
1387
	global $config, $g;
1388

    
1389
	/* Return for unassigned interfaces. This is a minimum requirement. */
1390
	if (empty($config['interfaces'][$interface]))
1391
		return 0;
1392
	$ifcfg = $config['interfaces'][$interface];
1393
	if (!isset($ifcfg['enable']))
1394
		return 0;
1395

    
1396
	// mpd5 requires a /var/spool/lock directory for PPP modem links.
1397
	if(!is_dir("/var/spool/lock")) {
1398
		exec("/bin/mkdir -p /var/spool/lock");
1399
		exec("/bin/chmod a+rw /var/spool/lock/.");
1400
	}
1401
	// mpd5 modem chat script expected in the same directory as the mpd_xxx.conf files
1402
	if (!file_exists("{$g['varetc_path']}/mpd.script"))
1403
		mwexec("/bin/ln -s /usr/local/sbin/mpd.script {$g['varetc_path']}/.");
1404

    
1405
	if (is_array($config['ppps']['ppp']) && count($config['ppps']['ppp'])) {
1406
		foreach ($config['ppps']['ppp'] as $pppid => $ppp) {
1407
			if ($ifcfg['if'] == $ppp['if'])
1408
				break;
1409
		}
1410
	}
1411
	if (!$ppp || $ifcfg['if'] != $ppp['if']){
1412
		log_error(sprintf(gettext("Can't find PPP config for %s in interface_ppps_configure()."), $ifcfg['if']));
1413
		return 0;
1414
	}
1415
	$pppif = $ifcfg['if'];
1416
	if ($ppp['type'] == "ppp")
1417
		$type = "modem";
1418
	else
1419
		$type = $ppp['type'];
1420
	$upper_type = strtoupper($ppp['type']);
1421

    
1422
	if($g['booting']) {
1423
		$descr = isset($ifcfg['descr']) ? $ifcfg['descr'] : strtoupper($interface);
1424
		echo "starting {$pppif} link...";
1425
		// Do not re-configure the interface if we are booting and it's already been started
1426
		if(file_exists("{$g['varrun_path']}/{$ppp['type']}_{$interface}.pid"))
1427
			return 0;
1428
	}
1429

    
1430
	$ports = explode(',',$ppp['ports']);
1431
	if ($type != "modem") {
1432
		foreach ($ports as $pid => $port) {
1433
			$ports[$pid] = get_real_interface($port);
1434
			if (empty($ports[$pid]))
1435
				return 0;
1436
		}
1437
	}
1438
	$localips = explode(',',$ppp['localip']);
1439
	$gateways = explode(',',$ppp['gateway']);
1440
	$subnets = explode(',',$ppp['subnet']);
1441

    
1442
	/* We bring up the parent interface first because if DHCP is configured on the parent we need
1443
	 * to obtain an address first so we can write it in the mpd .conf file for PPTP and L2TP configs
1444
	 */
1445
	foreach($ports as $pid => $port){
1446
		switch ($ppp['type']) {
1447
			case "pppoe":
1448
				/* Bring the parent interface up */
1449
				interfaces_bring_up($port);
1450
				pfSense_ngctl_attach(".", $port);
1451
				/* Enable setautosrc to automatically change mac address if parent interface's changes */
1452
				mwexec("ngctl msg {$port}: setautosrc 1");
1453
				break;
1454
			case "pptp":
1455
			case "l2tp":
1456
				/* configure interface */
1457
				if(is_ipaddr($localips[$pid])){
1458
					// Manually configure interface IP/subnet
1459
					pfSense_interface_setaddress($port, "{$localips[$pid]}/{$subnets[$pid]}");
1460
					interfaces_bring_up($port);
1461
				} else if (empty($localips[$pid]))
1462
					$localips[$pid] = get_interface_ip($port); // try to get the interface IP from the port
1463

    
1464
				if(!is_ipaddr($localips[$pid])){
1465
					log_error("Could not get a Local IP address for PPTP/L2TP link on {$port} in interfaces_ppps_configure. Using 0.0.0.0 ip!");
1466
					$localips[$pid] = "0.0.0.0";
1467
				}
1468
				if(!is_ipaddr($gateways[$pid])){
1469
					log_error(sprintf(gettext('Could not get a PPTP/L2TP Remote IP address from %1$s for %2$s in interfaces_ppps_configure.'), $dhcp_gateway, $gway));
1470
					return 0;
1471
				}
1472
				pfSense_ngctl_attach(".", $port);
1473
				break;
1474
			case "ppp":
1475
				if (!file_exists("{$port}")) {
1476
					log_error(sprintf(gettext("Device %s does not exist. PPP link cannot start without the modem device."), $port));
1477
					return 0;
1478
				}
1479
				break;
1480
			default:
1481
				log_error(sprintf(gettext("Unkown %s configured as ppp interface."), $type));
1482
				break;
1483
		}
1484
	}
1485

    
1486
	if (is_array($ports) && count($ports) > 1)
1487
		$multilink = "enable";
1488
	else
1489
		$multilink = "disable";
1490

    
1491
	if ($type == "modem"){
1492
		if (is_ipaddr($ppp['localip']))
1493
			$localip = $ppp['localip'];
1494
		else
1495
			$localip = '0.0.0.0';
1496

    
1497
		if (is_ipaddr($ppp['gateway']))
1498
			$gateway = $ppp['gateway'];
1499
		else
1500
			$gateway = "10.64.64.{$pppid}";
1501
		$ranges = "{$localip}/0 {$gateway}/0";
1502

    
1503
		if (empty($ppp['apnum']))
1504
			$ppp['apnum'] = 1;
1505
	} else
1506
		$ranges = "0.0.0.0/0 0.0.0.0/0";
1507

    
1508
	if (isset($ppp['ondemand']))
1509
		$ondemand = "enable";
1510
	else
1511
		$ondemand = "disable";
1512
	if (!isset($ppp['idletimeout']))
1513
		$ppp['idletimeout'] = 0;
1514

    
1515
	if (empty($ppp['username']) && $type == "modem"){
1516
		$ppp['username'] = "user";
1517
		$ppp['password'] = "none";
1518
	}
1519
	if (empty($ppp['password']) && $type == "modem")
1520
		$passwd = "none";
1521
	else
1522
		$passwd = base64_decode($ppp['password']);
1523

    
1524
	$bandwidths = explode(',',$ppp['bandwidth']);
1525
	$defaultmtu = "1492";
1526
	if (!empty($ifcfg['mtu']))
1527
		$defaultmtu = intval($ifcfg['mtu']);
1528
	$mtus = explode(',',$ppp['mtu']);
1529
	$mrus = explode(',',$ppp['mru']);
1530

    
1531
	if (isset($ppp['mrru']))
1532
		$mrrus = explode(',',$ppp['mrru']);
1533

    
1534
	// Construct the mpd.conf file
1535
	$mpdconf = <<<EOD
1536
startup:
1537
	# configure the console
1538
	set console close
1539
	# configure the web server
1540
	set web close
1541

    
1542
default:
1543
{$ppp['type']}client:
1544
	create bundle static {$interface}
1545
	set bundle enable ipv6cp
1546
	set iface name {$pppif}
1547

    
1548
EOD;
1549
	$setdefaultgw = false;
1550
	$founddefaultgw = false;
1551
	if (is_array($config['gateways']['gateway_item'])) {
1552
		foreach($config['gateways']['gateway_item'] as $gateway) {
1553
			if($interface == $gateway['interface'] && isset($gateway['defaultgw'])) {
1554
				$setdefaultgw = true;
1555
				break;
1556
			} else if (isset($gateway['defaultgw']) && !empty($gateway['interface'])) {
1557
				$founddefaultgw = true;
1558
				break;
1559
			}
1560
		}
1561
	}
1562

    
1563
	if (($interface == "wan" && $founddefaultgw == false) || $setdefaultgw == true){
1564
		$setdefaultgw = true;
1565
		$mpdconf .= <<<EOD
1566
	set iface route default
1567

    
1568
EOD;
1569
	}
1570
	$mpdconf .= <<<EOD
1571
	set iface {$ondemand} on-demand
1572
	set iface idle {$ppp['idletimeout']}
1573

    
1574
EOD;
1575

    
1576
	if (isset($ppp['ondemand']))
1577
		$mpdconf .= <<<EOD
1578
	set iface addrs 10.10.1.1 10.10.1.2
1579

    
1580
EOD;
1581

    
1582
	if (isset($ppp['tcpmssfix']))
1583
		$tcpmss = "disable";
1584
	else
1585
		$tcpmss = "enable";
1586
		$mpdconf .= <<<EOD
1587
	set iface {$tcpmss} tcpmssfix
1588

    
1589
EOD;
1590

    
1591
	$mpdconf .= <<<EOD
1592
	set iface up-script /usr/local/sbin/ppp-linkup
1593
	set iface down-script /usr/local/sbin/ppp-linkdown
1594
	set ipcp ranges {$ranges}
1595

    
1596
EOD;
1597
	if (isset($ppp['vjcomp']))
1598
		$mpdconf .= <<<EOD
1599
	set ipcp no vjcomp
1600

    
1601
EOD;
1602

    
1603
	if (isset($config['system']['dnsallowoverride']))
1604
		$mpdconf .= <<<EOD
1605
	set ipcp enable req-pri-dns
1606
	set ipcp enable req-sec-dns
1607

    
1608
EOD;
1609
	if (!isset($ppp['verbose_log']))
1610
		$mpdconf .= <<<EOD
1611
	#log -bund -ccp -chat -iface -ipcp -lcp -link
1612

    
1613
EOD;
1614
	foreach($ports as $pid => $port){
1615
		$port = get_real_interface($port);
1616
		$mpdconf .= <<<EOD
1617

    
1618
	create link static {$interface}_link{$pid} {$type}
1619
	set link action bundle {$interface}
1620
	set link {$multilink} multilink
1621
	set link keep-alive 10 60
1622
	set link max-redial 0
1623

    
1624
EOD;
1625
		if (isset($ppp['shortseq']))
1626
			$mpdconf .= <<<EOD
1627
	set link no shortseq
1628

    
1629
EOD;
1630

    
1631
		if (isset($ppp['acfcomp']))
1632
			$mpdconf .= <<<EOD
1633
	set link no acfcomp
1634

    
1635
EOD;
1636

    
1637
		if (isset($ppp['protocomp']))
1638
			$mpdconf .= <<<EOD
1639
	set link no protocomp
1640

    
1641
EOD;
1642

    
1643
		$mpdconf .= <<<EOD
1644
	set link disable chap pap
1645
	set link accept chap pap eap
1646
	set link disable incoming
1647

    
1648
EOD;
1649

    
1650

    
1651
		if (!empty($bandwidths[$pid]))
1652
			$mpdconf .= <<<EOD
1653
	set link bandwidth {$bandwidths[$pid]}
1654

    
1655
EOD;
1656

    
1657
		if (empty($mtus[$pid]))
1658
			$mtus[$pid] = $defaultmtu;
1659
			$mpdconf .= <<<EOD
1660
	set link mtu {$mtus[$pid]}
1661

    
1662
EOD;
1663

    
1664
		if (!empty($mrus[$pid]))
1665
			$mpdconf .= <<<EOD
1666
	set link mru {$mrus[$pid]}
1667

    
1668
EOD;
1669

    
1670
		if (!empty($mrrus[$pid]))
1671
			$mpdconf .= <<<EOD
1672
	set link mrru {$mrrus[$pid]}
1673

    
1674
EOD;
1675

    
1676
		$mpdconf .= <<<EOD
1677
	set auth authname "{$ppp['username']}"
1678
	set auth password {$passwd}
1679

    
1680
EOD;
1681
		if ($type == "modem") {
1682
			$mpdconf .= <<<EOD
1683
	set modem device {$ppp['ports']}
1684
	set modem script DialPeer
1685
	set modem idle-script Ringback
1686
	set modem watch -cd
1687
	set modem var \$DialPrefix "DT"
1688
	set modem var \$Telephone "{$ppp['phone']}"
1689

    
1690
EOD;
1691
		}
1692
		if (isset($ppp['connect-timeout']) && $type == "modem") {
1693
			$mpdconf .= <<<EOD
1694
	set modem var \$ConnectTimeout "{$ppp['connect-timeout']}"
1695

    
1696
EOD;
1697
		}
1698
		if (isset($ppp['initstr']) && $type == "modem") {
1699
			$initstr = base64_decode($ppp['initstr']);
1700
			$mpdconf .= <<<EOD
1701
	set modem var \$InitString "{$initstr}"
1702

    
1703
EOD;
1704
		}
1705
		if (isset($ppp['simpin']) && $type == "modem") {
1706
			if($ppp['pin-wait'] == "")
1707
				$ppp['pin-wait'] = 0;
1708
			$mpdconf .= <<<EOD
1709
	set modem var \$SimPin "{$ppp['simpin']}"
1710
	set modem var \$PinWait "{$ppp['pin-wait']}"
1711

    
1712
EOD;
1713
		}
1714
		if (isset($ppp['apn']) && $type == "modem") {
1715
			$mpdconf .= <<<EOD
1716
	set modem var \$APN "{$ppp['apn']}"
1717
	set modem var \$APNum "{$ppp['apnum']}"
1718

    
1719
EOD;
1720
		}
1721
		if ($type == "pppoe") {
1722
			// Send a null service name if none is set.
1723
			$provider = isset($ppp['provider']) ? $ppp['provider'] : "";
1724
			$mpdconf .= <<<EOD
1725
	set pppoe service "{$provider}"
1726

    
1727
EOD;
1728
		}
1729
		if ($type == "pppoe")
1730
			$mpdconf .= <<<EOD
1731
	set pppoe iface {$port}
1732

    
1733
EOD;
1734

    
1735
		if ($type == "pptp" || $type == "l2tp") {
1736
			$mpdconf .= <<<EOD
1737
	set {$type} self {$localips[$pid]}
1738
	set {$type} peer {$gateways[$pid]}
1739

    
1740
EOD;
1741
		}
1742

    
1743
		$mpdconf .= "\topen\n";
1744
	} //end foreach($port)
1745

    
1746

    
1747
	/* Generate mpd.conf. If mpd_[interface].conf exists in the conf path, then link to it instead of generating a fresh conf file. */
1748
	if (file_exists("{$g['conf_path']}/mpd_{$interface}.conf"))
1749
		mwexec("/bin/ln -s {$g['conf_path']}/mpd_{$interface}.conf {$g['varetc_path']}/.");
1750
	else {
1751
		$fd = fopen("{$g['varetc_path']}/mpd_{$interface}.conf", "w");
1752
		if (!$fd) {
1753
			log_error(sprintf(gettext("Error: cannot open mpd_%s.conf in interface_ppps_configure().%s"), $interface, "\n"));
1754
			return 0;
1755
		}
1756
		// Write out mpd_ppp.conf
1757
		fwrite($fd, $mpdconf);
1758
		fclose($fd);
1759
		unset($mpdconf);
1760
	}
1761

    
1762
	// Create the uptime log if requested and if it doesn't exist already, or delete it if it is no longer requested.
1763
	if (isset($ppp['uptime'])) {
1764
		if (!file_exists("/conf/{$pppif}.log")) {
1765
			conf_mount_rw();
1766
			mwexec("echo /dev/null > /conf/{$pppif}.log");
1767
			conf_mount_ro();
1768
		}
1769
	} else {
1770
		if (file_exists("/conf/{$pppif}.log")) {
1771
			conf_mount_rw();
1772
			mwexec("rm -f /conf/{$pppif}.log");
1773
			conf_mount_ro();
1774
		}
1775
	}
1776

    
1777
	/* clean up old lock files */
1778
	foreach($ports as $port) {
1779
		if(file_exists("{$g['var_path']}/spool/lock/LCK..{$port}"))
1780
			unlink("{$g['var_path']}/spool/lock/LCK..{$port}");
1781
	}
1782

    
1783
	/* fire up mpd */
1784
	mwexec("/usr/local/sbin/mpd5 -b -k -d {$g['varetc_path']} -f mpd_{$interface}.conf -p {$g['varrun_path']}/{$ppp['type']}_{$interface}.pid -s ppp {$ppp['type']}client");
1785

    
1786
	// Check for PPPoE periodic reset request
1787
	if ($type == "pppoe") {
1788
		if (!empty($ppp['pppoe-reset-type']))
1789
			interface_setup_pppoe_reset_file($ppp['if'], $interface);
1790
		else
1791
			interface_setup_pppoe_reset_file($ppp['if']);
1792
	}
1793
	/* wait for upto 10 seconds for the interface to appear (ppp(oe)) */
1794
	$i = 0;
1795
	while($i < 10) {
1796
		exec("/sbin/ifconfig {$ppp['if']} 2>&1", $out, $ret);
1797
		if($ret == 0)
1798
			break;
1799
		sleep(1);
1800
		$i++;
1801
	}
1802

    
1803
	/* we only support the 3gstats.php for huawei modems for now. Will add more later. */
1804
	/* We should be able to launch the right version for each modem */
1805
	/* We can also guess the mondev from the manufacturer */
1806
	exec("usbconfig | egrep -ie '(huawei)'", $usbmodemoutput);
1807
	mwexec("/bin/ps auxww|grep \"{$interface}\" |grep \"[3]gstats\" | awk '{print $2}' |xargs kill");
1808
	foreach($ports as $port) {
1809
		if(preg_match("/huawei/i", implode("\n", $usbmodemoutput))) {
1810
			$mondev  = substr(basename($port), 0, -1);
1811
			$devlist = glob("/dev/{$mondev}?");
1812
			$mondev = basename(end($devlist));
1813
		}
1814
		if(preg_match("/zte/i", implode("\n", $usbmodemoutput))) {
1815
			$mondev  = substr(basename($port), 0, -1) . "1";
1816
		}
1817
		log_error("Starting 3gstats.php on device '{$mondev}' for interface '{$interface}'");
1818
		mwexec_bg("/usr/local/bin/3gstats.php {$mondev} {$interface}");
1819
	}
1820

    
1821
	return 1;
1822
}
1823

    
1824
function interfaces_carp_setup() {
1825
	global $g, $config;
1826

    
1827
	if (isset($config['system']['developerspew'])) {
1828
		$mt = microtime();
1829
		echo "interfaces_carp_setup() being called $mt\n";
1830
	}
1831

    
1832
	if ($g['booting']) {
1833
		echo gettext("Configuring CARP settings...");
1834
		mute_kernel_msgs();
1835
	}
1836

    
1837
	/* suck in configuration items */
1838
	if ($config['hasync']) {
1839
		$pfsyncenabled = $config['hasync']['pfsyncenabled'];
1840
		$balanacing = $config['hasync']['balancing'];
1841
		$pfsyncinterface = $config['hasync']['pfsyncinterface'];
1842
		$pfsyncpeerip = $config['hasync']['pfsyncpeerip'];
1843
	} else {
1844
		unset($pfsyncinterface);
1845
		unset($balanacing);
1846
		unset($pfsyncenabled);
1847
	}
1848

    
1849
	if ($balanacing) {
1850
		mwexec("/sbin/sysctl net.inet.carp.arpbalance=1", true);
1851
		mwexec("/sbin/sysctl net.inet.carp.preempt=0", true);
1852
	} else
1853
		mwexec("/sbin/sysctl net.inet.carp.preempt=1", true);
1854

    
1855
	mwexec("sbin/sysctl net.inet.carp.log=1", true);
1856
	if (!empty($pfsyncinterface))
1857
		$carp_sync_int = get_real_interface($pfsyncinterface);
1858
	else
1859
		unset($carp_sync_int);
1860

    
1861
	/* setup pfsync interface */
1862
	if ($carp_sync_int and $pfsyncenabled) {
1863
		if (is_ipaddr($pfsyncpeerip))
1864
			$syncpeer = "syncpeer {$pfsyncpeerip}";
1865
		else
1866
			$syncpeer = "-syncpeer";
1867

    
1868
		mwexec("/sbin/ifconfig pfsync0 syncdev {$carp_sync_int} {$syncpeer} up", false);
1869

    
1870
		sleep(1);
1871

    
1872
		/* XXX: Handle an issue with pfsync(4) and carp(4). In a cluster carp will come up before pfsync(4) has updated and so will cause issues
1873
		 * for existing sessions.
1874
		 */
1875
		log_error("waiting for pfsync...");
1876
		$i = 0;
1877
		while (intval(trim(`/sbin/ifconfig pfsync0 | /usr/bin/grep 'syncok: 0' | /usr/bin/grep -v grep | /usr/bin/wc -l`)) == 0 && $i < 30) {
1878
			$i++;
1879
			sleep(1);
1880
		}
1881
		log_error("pfsync done in $i seconds.");
1882
		log_error("Configuring CARP settings finalize...");
1883
	} else {
1884
		mwexec("/sbin/ifconfig pfsync0 -syncdev -syncpeer down", false);
1885
	}
1886

    
1887
	if($config['virtualip']['vip'])
1888
		mwexec("/sbin/sysctl net.inet.carp.allow=1", true);
1889
	else
1890
		mwexec("/sbin/sysctl net.inet.carp.allow=0", true);
1891

    
1892
	if ($g['booting']) {
1893
		unmute_kernel_msgs();
1894
		echo gettext("done.") . "\n";
1895
	}
1896
}
1897

    
1898
function interface_proxyarp_configure($interface = "") {
1899
	global $config, $g;
1900
	if(isset($config['system']['developerspew'])) {
1901
		$mt = microtime();
1902
		echo "interface_proxyarp_configure() being called $mt\n";
1903
	}
1904

    
1905
	/* kill any running choparp */
1906
	if (empty($interface))
1907
		killbyname("choparp");
1908
	else {
1909
		$vipif = get_real_interface($interface);
1910
		if (file_exists("{$g['varrun_path']}/choparp_{$vipif}.pid"))
1911
			killbypid("{$g['varrun_path']}/choparp_{$vipif}.pid");
1912
	}
1913

    
1914
	$paa = array();
1915
	if (!empty($config['virtualip']) && is_array($config['virtualip']['vip'])) {
1916

    
1917
		/* group by interface */
1918
		foreach ($config['virtualip']['vip'] as $vipent) {
1919
			if ($vipent['mode'] === "proxyarp") {
1920
				if ($vipent['interface'])
1921
					$proxyif = $vipent['interface'];
1922
				else
1923
					$proxyif = "wan";
1924

    
1925
				if (!empty($interface) && $interface != $proxyif)
1926
					continue;
1927

    
1928
				if (!is_array($paa[$proxyif]))
1929
					$paa[$proxyif] = array();
1930

    
1931
				$paa[$proxyif][] = $vipent;
1932
			}
1933
		}
1934
	}
1935

    
1936
	if (!empty($interface)) {
1937
		if (is_array($paa[$interface])) {
1938
			$paaifip = get_interface_ip($interface);
1939
			if (!is_ipaddr($paaifip))
1940
				return;
1941
			$args = get_real_interface($interface) . " auto";
1942
			foreach ($paa[$interface] as $paent) {
1943
				if (isset($paent['subnet']))
1944
					$args .= " " . escapeshellarg("{$paent['subnet']}/{$paent['subnet_bits']}");
1945
				else if (isset($paent['range']))
1946
					$args .= " " . escapeshellarg($paent['range']['from'] . "-" . $paent['range']['to']);
1947
			}
1948
			mwexec_bg("/usr/local/sbin/choparp " . $args);
1949
		}
1950
	} else if (count($paa) > 0) {
1951
		foreach ($paa as $paif => $paents)  {
1952
			$paaifip = get_interface_ip($paif);
1953
			if (!is_ipaddr($paaifip))
1954
				continue;
1955
			$args = get_real_interface($paif) . " auto";
1956
			foreach ($paents as $paent) {
1957
				if (isset($paent['subnet']))
1958
					$args .= " " . escapeshellarg("{$paent['subnet']}/{$paent['subnet_bits']}");
1959
				else if (isset($paent['range']))
1960
					$args .= " " . escapeshellarg($paent['range']['from'] . "-" . $paent['range']['to']);
1961
			}
1962
			mwexec_bg("/usr/local/sbin/choparp " . $args);
1963
		}
1964
	}
1965
}
1966

    
1967
function interfaces_vips_configure($interface = "") {
1968
	global $g, $config;
1969
	if(isset($config['system']['developerspew'])) {
1970
		$mt = microtime();
1971
		echo "interfaces_vips_configure() being called $mt\n";
1972
	}
1973
	$paa = array();
1974
	if(is_array($config['virtualip']['vip'])) {
1975
		$carp_setuped = false;
1976
		$anyproxyarp = false;
1977
		foreach ($config['virtualip']['vip'] as $vip) {
1978
			switch ($vip['mode']) {
1979
			case "proxyarp":
1980
				/* nothing it is handled on interface_proxyarp_configure() */
1981
				if ($interface <> "" && $vip['interface'] <> $interface)
1982
					continue;
1983
				$anyproxyarp = true;
1984
				break;
1985
			case "ipalias":
1986
				if ($interface <> "" && $vip['interface'] <> $interface)
1987
					continue;
1988
				interface_ipalias_configure($vip);
1989
				break;
1990
			case "carp":
1991
				if ($interface <> "" && $vip['interface'] <> $interface)
1992
					continue;
1993
				if ($carp_setuped == false)
1994
					$carp_setuped = true;
1995
				interface_carp_configure($vip);
1996
				break;
1997
			}
1998
		}
1999
		if ($carp_setuped == true)
2000
			interfaces_carp_setup();
2001
		if ($anyproxyarp == true)
2002
			interface_proxyarp_configure();
2003
	}
2004
}
2005

    
2006
function interface_ipalias_configure(&$vip) {
2007
	if ($vip['mode'] == "ipalias") {
2008
		$if = get_real_interface($vip['interface']);
2009
		$af = "inet";
2010
		if(is_ipaddrv6($vip['subnet']))
2011
			$af = "inet6";
2012
		mwexec("/sbin/ifconfig " . escapeshellarg($if) ." {$af} ". escapeshellarg($vip['subnet']) ."/" . escapeshellarg($vip['subnet_bits']) . " alias");
2013
	}
2014
}
2015

    
2016
function interface_reload_carps($cif) {
2017
	global $config;
2018

    
2019
	$carpifs = link_ip_to_carp_interface(find_interface_ip($cif));
2020
	if (empty($carpifs))
2021
		return;
2022

    
2023
	$carps = explode(" ", $carpifs);
2024
	if(is_array($config['virtualip']['vip'])) {
2025
		$viparr = &$config['virtualip']['vip'];
2026
		foreach ($viparr as $vip) {
2027
			if (in_array($vip['carpif'], $carps)) {
2028
				switch ($vip['mode']) {
2029
				case "carp":
2030
					interface_vip_bring_down($vip);
2031
					sleep(1);
2032
					interface_carp_configure($vip);
2033
					break;
2034
				case "ipalias":
2035
					interface_vip_bring_down($vip);
2036
					sleep(1);
2037
					interface_ipalias_configure($vip);
2038
					break;
2039
				}
2040
			}
2041
		}
2042
	}
2043
}
2044

    
2045
function interface_carp_configure(&$vip) {
2046
	global $config, $g;
2047
	if(isset($config['system']['developerspew'])) {
2048
		$mt = microtime();
2049
		echo "interface_carp_configure() being called $mt\n";
2050
	}
2051

    
2052
	if ($vip['mode'] != "carp")
2053
		return;
2054

    
2055
	/*
2056
	 * ensure the interface containing the VIP really exists
2057
	 * prevents a panic if the interface is missing or invalid
2058
	 */
2059
	$realif = get_real_interface($vip['interface']);
2060
	if (!does_interface_exist($realif)) {
2061
		file_notice("CARP", sprintf(gettext("Interface specified for the virtual IP address %s does not exist. Skipping this VIP."), $vip['subnet']), "Firewall: Virtual IP", "");
2062
		return;
2063
	}
2064

    
2065
	if(is_ipaddrv4($vip['subnet'])) {
2066
		/* Ensure CARP IP really exists prior to loading up. */
2067
		$ww_subnet_ip = find_interface_ip($realif);
2068
		$ww_subnet_bits = find_interface_subnet($realif);
2069
		if (!ip_in_subnet($vip['subnet'], gen_subnet($ww_subnet_ip, $ww_subnet_bits) . "/" . $ww_subnet_bits) && !ip_in_interface_alias_subnet($vip['interface'], $vip['subnet'])) {
2070
			file_notice("CARP", sprintf(gettext("Sorry but we could not find a matching real interface subnet for the virtual IP address %s."), $vip['subnet']), "Firewall: Virtual IP", "");
2071
			return;
2072
		}
2073
	}
2074
	if(is_ipaddrv6($vip['subnet'])) {
2075
		/* Ensure CARP IP really exists prior to loading up. */
2076
		$ww_subnet_ip = find_interface_ipv6($realif);
2077
		$ww_subnet_bits = find_interface_subnetv6($realif);
2078
		if (!ip_in_subnet($vip['subnet'], gen_subnetv6($ww_subnet_ip, $ww_subnet_bits) . "/" . $ww_subnet_bits) && !ip_in_interface_alias_subnet($vip['interface'], $vip['subnet'])) {
2079
			file_notice("CARP", sprintf(gettext("Sorry but we could not find a matching real interface subnet for the virtual IPv6 address %s."), $vip['subnet']), "Firewall: Virtual IP", "");
2080
			return;
2081
		}
2082
	}
2083

    
2084
	// set the vip interface to the vhid
2085
	$vipif = "{$vip['interface']}_vip{$vip['vhid']}";
2086

    
2087
	/* create the carp interface and setup */
2088
	if (does_interface_exist($vipif)) {
2089
		pfSense_interface_flags($vipif, -IFF_UP);
2090
	} else {
2091
		$carpif = pfSense_interface_create("carp");
2092
		pfSense_interface_rename($carpif, $vipif);
2093
		pfSense_ngctl_name("{$carpif}:", $vipif);
2094
	}
2095

    
2096
	/* invalidate interface cache */
2097
	get_interface_arr(true);
2098

    
2099
	$vip_password = $vip['password'];
2100
	$vip_password = escapeshellarg(addslashes(str_replace(" ", "", $vip_password)));
2101
	if ($vip['password'] != "")
2102
		$password = " pass {$vip_password}";
2103

    
2104
	$broadcast_address = gen_subnet_max($vip['subnet'], $vip['subnet_bits']);
2105
	$advbase = "";
2106
	if (!empty($vip['advbase']))
2107
		$advbase = "advbase {$vip['advbase']}";
2108

    
2109
	if(is_ipaddrv4($vip['subnet'])) {
2110
		$broadcast_address = gen_subnet_max($vip['subnet'], $vip['subnet_bits']);
2111
		mwexec("/sbin/ifconfig {$vipif} {$vip['subnet']}/{$vip['subnet_bits']} vhid {$vip['vhid']} advskew {$vip['advskew']} {$advbase} {$password}");
2112
	}
2113
	if(is_ipaddrv6($vip['subnet'])) {
2114
		$broadcast_address = gen_subnet_max($vip['subnet'], $vip['subnet_bits']);
2115
		mwexec("/sbin/ifconfig {$vipif} inet6 {$vip['subnet']} prefixlen {$vip['subnet_bits']} vhid {$vip['vhid']} advskew {$vip['advskew']} {$advbase} {$password}");
2116
	}
2117

    
2118
	interfaces_bring_up($vipif);
2119

    
2120
	return $vipif;
2121
}
2122

    
2123
function interface_wireless_clone($realif, $wlcfg) {
2124
	global $config, $g;
2125
	/*   Check to see if interface has been cloned as of yet.
2126
	 *   If it has not been cloned then go ahead and clone it.
2127
	 */
2128
	$needs_clone = false;
2129
	if(is_array($wlcfg['wireless']))
2130
		$wlcfg_mode = $wlcfg['wireless']['mode'];
2131
	else
2132
		$wlcfg_mode = $wlcfg['mode'];
2133
	switch($wlcfg_mode) {
2134
		 case "hostap":
2135
			$mode = "wlanmode hostap";
2136
			break;
2137
		 case "adhoc":
2138
			$mode = "wlanmode adhoc";
2139
			break;
2140
		 default:
2141
			$mode = "";
2142
			break;
2143
	}
2144
	$baseif = interface_get_wireless_base($wlcfg['if']);
2145
	if(does_interface_exist($realif)) {
2146
		exec("/sbin/ifconfig {$realif}", $output, $ret);
2147
		$ifconfig_str = implode($output);
2148
		if(($wlcfg_mode == "hostap") && (! preg_match("/hostap/si", $ifconfig_str))) {
2149
			log_error(sprintf(gettext("Interface %s changed to hostap mode"), $realif));
2150
			$needs_clone = true;
2151
		}
2152
		if(($wlcfg_mode == "adhoc") && (! preg_match("/adhoc/si", $ifconfig_str))) {
2153
			log_error(sprintf(gettext("Interface %s changed to adhoc mode"), $realif));
2154
			$needs_clone = true;
2155
		}
2156
		if(($wlcfg_mode == "bss") && (preg_match("/hostap|adhoc/si", $ifconfig_str))) {
2157
			log_error(sprintf(gettext("Interface %s changed to infrastructure mode"), $realif));
2158
			$needs_clone = true;
2159
		}
2160
	} else {
2161
		$needs_clone = true;
2162
	}
2163

    
2164
	if($needs_clone == true) {
2165
		/* remove previous instance if it exists */
2166
		if(does_interface_exist($realif))
2167
			pfSense_interface_destroy($realif);
2168

    
2169
		log_error(sprintf(gettext("Cloning new wireless interface %s"), $realif));
2170
		// Create the new wlan interface. FreeBSD returns the new interface name.
2171
		// example:  wlan2
2172
		exec("/sbin/ifconfig wlan create wlandev {$baseif} {$mode} bssid 2>&1", $out, $ret);
2173
		if($ret <> 0) {
2174
			log_error(sprintf(gettext('Failed to clone interface %1$s with error code %2$s, output %3$s'), $baseif, $ret, $out[0]));
2175
			return false;
2176
		}
2177
		$newif = trim($out[0]);
2178
		// Rename the interface to {$parentnic}_wlan{$number}#: EX: ath0_wlan0
2179
		pfSense_interface_rename($newif, $realif);
2180
		// FIXME: not sure what ngctl is for. Doesn't work.
2181
		// mwexec("/usr/sbin/ngctl name {$newif}: {$realif}", false);
2182
		file_put_contents("{$g['tmp_path']}/{$realif}_oldmac", get_interface_mac($realif));
2183
	}
2184
	return true;
2185
}
2186

    
2187
function interface_sync_wireless_clones(&$ifcfg, $sync_changes = false) {
2188
	global $config, $g;
2189

    
2190
	$shared_settings = array('standard', 'turbo', 'protmode', 'txpower', 'channel',
2191
	                         'diversity', 'txantenna', 'rxantenna', 'distance',
2192
	                         'regdomain', 'regcountry', 'reglocation');
2193

    
2194
	if(!is_interface_wireless($ifcfg['if']))
2195
		return;
2196

    
2197
	$baseif = interface_get_wireless_base($ifcfg['if']);
2198

    
2199
	// Sync shared settings for assigned clones
2200
	$iflist = get_configured_interface_list(false, true);
2201
	foreach ($iflist as $if) {
2202
		if ($baseif == interface_get_wireless_base($config['interfaces'][$if]['if']) && $ifcfg['if'] != $config['interfaces'][$if]['if']) {
2203
			if (isset($config['interfaces'][$if]['wireless']['standard']) || $sync_changes) {
2204
				foreach ($shared_settings as $setting) {
2205
					if ($sync_changes) {
2206
						if (isset($ifcfg['wireless'][$setting]))
2207
							$config['interfaces'][$if]['wireless'][$setting] = $ifcfg['wireless'][$setting];
2208
						else if (isset($config['interfaces'][$if]['wireless'][$setting]))
2209
							unset($config['interfaces'][$if]['wireless'][$setting]);
2210
					} else {
2211
						if (isset($config['interfaces'][$if]['wireless'][$setting]))
2212
							$ifcfg['wireless'][$setting] = $config['interfaces'][$if]['wireless'][$setting];
2213
						else if (isset($ifcfg['wireless'][$setting]))
2214
							unset($ifcfg['wireless'][$setting]);
2215
					}
2216
				}
2217
				if (!$sync_changes)
2218
					break;
2219
			}
2220
		}
2221
	}
2222

    
2223
	// Read or write settings at shared area
2224
	if (isset($config['wireless']['interfaces'][$baseif]) && is_array($config['wireless']['interfaces'][$baseif])) {
2225
		foreach ($shared_settings as $setting) {
2226
			if ($sync_changes) {
2227
				if (isset($ifcfg['wireless'][$setting]))
2228
					$config['wireless']['interfaces'][$baseif][$setting] = $ifcfg['wireless'][$setting];
2229
				else if (isset($config['wireless']['interfaces'][$baseif][$setting]))
2230
					unset($config['wireless']['interfaces'][$baseif][$setting]);
2231
			} else if (isset($config['wireless']['interfaces'][$baseif][$setting])) {
2232
				if (isset($config['wireless']['interfaces'][$baseif][$setting]))
2233
					$ifcfg['wireless'][$setting] = $config['wireless']['interfaces'][$baseif][$setting];
2234
				else if (isset($ifcfg['wireless'][$setting]))
2235
					unset($ifcfg['wireless'][$setting]);
2236
			}
2237
		}
2238
	}
2239

    
2240
	// Sync the mode on the clone creation page with the configured mode on the interface
2241
	if (interface_is_wireless_clone($ifcfg['if']) && isset($config['wireless']['clone']) && is_array($config['wireless']['clone'])) {
2242
		foreach ($config['wireless']['clone'] as &$clone) {
2243
			if ($clone['cloneif'] == $ifcfg['if']) {
2244
				if ($sync_changes) {
2245
					$clone['mode'] = $ifcfg['wireless']['mode'];
2246
				} else {
2247
					$ifcfg['wireless']['mode'] = $clone['mode'];
2248
				}
2249
				break;
2250
			}
2251
		}
2252
		unset($clone);
2253
	}
2254
}
2255

    
2256
function interface_wireless_configure($if, &$wl, &$wlcfg) {
2257
	global $config, $g;
2258

    
2259
	/*    open up a shell script that will be used to output the commands.
2260
	 *    since wireless is changing a lot, these series of commands are fragile
2261
	 *    and will sometimes need to be verified by a operator by executing the command
2262
	 *    and returning the output of the command to the developers for inspection.  please
2263
	 *    do not change this routine from a shell script to individual exec commands.  -sullrich
2264
	 */
2265

    
2266
	// Remove script file
2267
	unlink_if_exists("{$g['tmp_path']}/{$if}_setup.sh");
2268

    
2269
	// Clone wireless nic if needed.
2270
	interface_wireless_clone($if, $wl);
2271

    
2272
	// Reject inadvertent changes to shared settings in case the interface hasn't been configured.
2273
	interface_sync_wireless_clones($wl, false);
2274

    
2275
	$fd_set = fopen("{$g['tmp_path']}/{$if}_setup.sh","w");
2276
	fwrite($fd_set, "#!/bin/sh\n");
2277
	fwrite($fd_set, "# {$g['product_name']} wireless configuration script.\n\n");
2278

    
2279
	/* set values for /path/program */
2280
	$hostapd = "/usr/sbin/hostapd";
2281
	$wpa_supplicant = "/usr/sbin/wpa_supplicant";
2282
	$ifconfig = "/sbin/ifconfig";
2283
	$sysctl = "/sbin/sysctl";
2284
	$killall = "/usr/bin/killall";
2285

    
2286
	/* Set all wireless ifconfig variables (split up to get rid of needed checking) */
2287

    
2288
	$wlcmd = array();
2289
	$wl_sysctl = array();
2290
	/* Make sure it's up */
2291
	$wlcmd[] = "up";
2292
	/* Set a/b/g standard */
2293
	$standard = str_replace(" Turbo", "", $wlcfg['standard']);
2294
	$wlcmd[] = "mode " . escapeshellarg($standard);
2295

    
2296
	/* XXX: Disable ampdu for now on mwl when running in 11n mode
2297
	 * to prevent massive packet loss under certain conditions. */
2298
	if(preg_match("/^mwl/i", $if) && ($standard == "11ng" || $standard == "11na"))
2299
		$wlcmd[] = "-ampdu";
2300

    
2301
	/* Set ssid */
2302
	if($wlcfg['ssid'])
2303
		$wlcmd[] = "ssid " .escapeshellarg($wlcfg['ssid']);
2304

    
2305
	/* Set 802.11g protection mode */
2306
	$wlcmd[] = "protmode " . escapeshellarg($wlcfg['protmode']);
2307

    
2308
	/* set wireless channel value */
2309
	if(isset($wlcfg['channel'])) {
2310
		if($wlcfg['channel'] == "0") {
2311
			$wlcmd[] = "channel any";
2312
		} else {
2313
			$wlcmd[] = "channel " . escapeshellarg($wlcfg['channel']);
2314
		}
2315
	}
2316

    
2317
	/* Set antenna diversity value */
2318
	if(isset($wlcfg['diversity']))
2319
		$wl_sysctl[] = "diversity=" . escapeshellarg($wlcfg['diversity']);
2320

    
2321
	/* Set txantenna value */
2322
	if(isset($wlcfg['txantenna']))
2323
		$wl_sysctl[] = "txantenna=" . escapeshellarg($wlcfg['txantenna']);
2324

    
2325
	/* Set rxantenna value */
2326
	if(isset($wlcfg['rxantenna']))
2327
		$wl_sysctl[] = "rxantenna=" . escapeshellarg($wlcfg['rxantenna']);
2328

    
2329
	/* set Distance value */
2330
	if($wlcfg['distance'])
2331
		$distance = escapeshellarg($wlcfg['distance']);
2332

    
2333
	/* Set wireless hostap mode */
2334
	if ($wlcfg['mode'] == "hostap") {
2335
		$wlcmd[] = "mediaopt hostap";
2336
	} else {
2337
		$wlcmd[] = "-mediaopt hostap";
2338
	}
2339

    
2340
	/* Set wireless adhoc mode */
2341
	if ($wlcfg['mode'] == "adhoc") {
2342
		$wlcmd[] = "mediaopt adhoc";
2343
	} else {
2344
		$wlcmd[] = "-mediaopt adhoc";
2345
	}
2346

    
2347
	/* Not neccesary to set BSS mode as this is default if adhoc and/or hostap is NOT set */
2348

    
2349
	/* handle hide ssid option */
2350
	if(isset($wlcfg['hidessid']['enable'])) {
2351
		$wlcmd[] = "hidessid";
2352
	} else {
2353
		$wlcmd[] = "-hidessid";
2354
	}
2355

    
2356
	/* handle pureg (802.11g) only option */
2357
	if(isset($wlcfg['pureg']['enable'])) {
2358
		$wlcmd[] = "mode 11g pureg";
2359
	} else {
2360
		$wlcmd[] = "-pureg";
2361
	}
2362

    
2363
	/* handle puren (802.11n) only option */
2364
	if(isset($wlcfg['puren']['enable'])) {
2365
		$wlcmd[] = "puren";
2366
	} else {
2367
		$wlcmd[] = "-puren";
2368
	}
2369

    
2370
	/* enable apbridge option */
2371
	if(isset($wlcfg['apbridge']['enable'])) {
2372
		$wlcmd[] = "apbridge";
2373
	} else {
2374
		$wlcmd[] = "-apbridge";
2375
	}
2376

    
2377
	/* handle turbo option */
2378
	if(isset($wlcfg['turbo']['enable'])) {
2379
		$wlcmd[] = "mediaopt turbo";
2380
	} else {
2381
		$wlcmd[] = "-mediaopt turbo";
2382
	}
2383

    
2384
	/* handle txpower setting */
2385
	/* if($wlcfg['txpower'] <> "")
2386
		$wlcmd[] = "txpower " . escapeshellarg($wlcfg['txpower']);
2387
	*/
2388
	/* handle wme option */
2389
	if(isset($wlcfg['wme']['enable'])) {
2390
		$wlcmd[] = "wme";
2391
	} else {
2392
		$wlcmd[] = "-wme";
2393
	}
2394

    
2395
	/* set up wep if enabled */
2396
	$wepset = "";
2397
	if (isset($wlcfg['wep']['enable']) && is_array($wlcfg['wep']['key'])) {
2398
		switch($wlcfg['wpa']['auth_algs']) {
2399
			case "1":
2400
				$wepset .= "authmode open wepmode on ";
2401
				break;
2402
			case "2":
2403
				$wepset .= "authmode shared wepmode on ";
2404
				break;
2405
			case "3":
2406
				$wepset .= "authmode mixed wepmode on ";
2407
		}
2408
		$i = 1;
2409
		foreach ($wlcfg['wep']['key'] as $wepkey) {
2410
			$wepset .= "wepkey " . escapeshellarg("{$i}:{$wepkey['value']}") . " ";
2411
			if (isset($wepkey['txkey'])) {
2412
				$wlcmd[] = "weptxkey {$i} ";
2413
			}
2414
			$i++;
2415
		}
2416
		$wlcmd[] = $wepset;
2417
	} else {
2418
		$wlcmd[] = "authmode open wepmode off ";
2419
	}
2420

    
2421
	kill_hostapd($if);
2422
	mwexec(kill_wpasupplicant("{$if}"));
2423

    
2424
	/* generate wpa_supplicant/hostap config if wpa is enabled */
2425
	conf_mount_rw();
2426

    
2427
	switch ($wlcfg['mode']) {
2428
		case 'bss':
2429
			if (isset($wlcfg['wpa']['enable'])) {
2430
				$wpa .= <<<EOD
2431
ctrl_interface={$g['varrun_path']}/wpa_supplicant
2432
ctrl_interface_group=0
2433
ap_scan=1
2434
#fast_reauth=1
2435
network={
2436
ssid="{$wlcfg['ssid']}"
2437
scan_ssid=1
2438
priority=5
2439
key_mgmt={$wlcfg['wpa']['wpa_key_mgmt']}
2440
psk="{$wlcfg['wpa']['passphrase']}"
2441
pairwise={$wlcfg['wpa']['wpa_pairwise']}
2442
group={$wlcfg['wpa']['wpa_pairwise']}
2443
}
2444
EOD;
2445

    
2446
				$fd = fopen("{$g['varetc_path']}/wpa_supplicant_{$if}.conf", "w");
2447
				fwrite($fd, "{$wpa}");
2448
				fclose($fd);
2449
			}
2450
			break;
2451
		case 'hostap':
2452
			if($wlcfg['wpa']['passphrase'])
2453
				$wpa_passphrase = "wpa_passphrase={$wlcfg['wpa']['passphrase']}\n";
2454
			else
2455
				$wpa_passphrase = "";
2456
			if (isset($wlcfg['wpa']['enable'])) {
2457
				$wpa .= <<<EOD
2458
interface={$if}
2459
driver=bsd
2460
logger_syslog=-1
2461
logger_syslog_level=0
2462
logger_stdout=-1
2463
logger_stdout_level=0
2464
dump_file={$g['tmp_path']}/hostapd_{$if}.dump
2465
ctrl_interface={$g['varrun_path']}/hostapd
2466
ctrl_interface_group=wheel
2467
#accept_mac_file={$g['tmp_path']}/hostapd_{$if}.accept
2468
#deny_mac_file={$g['tmp_path']}/hostapd_{$if}.deny
2469
#macaddr_acl={$wlcfg['wpa']['macaddr_acl']}
2470
ssid={$wlcfg['ssid']}
2471
debug={$wlcfg['wpa']['debug_mode']}
2472
auth_algs={$wlcfg['wpa']['auth_algs']}
2473
wpa={$wlcfg['wpa']['wpa_mode']}
2474
wpa_key_mgmt={$wlcfg['wpa']['wpa_key_mgmt']}
2475
wpa_pairwise={$wlcfg['wpa']['wpa_pairwise']}
2476
wpa_group_rekey={$wlcfg['wpa']['wpa_group_rekey']}
2477
wpa_gmk_rekey={$wlcfg['wpa']['wpa_gmk_rekey']}
2478
wpa_strict_rekey={$wlcfg['wpa']['wpa_strict_rekey']}
2479
{$wpa_passphrase}
2480

    
2481
EOD;
2482

    
2483
if (isset($wlcfg['wpa']['rsn_preauth'])) {
2484
	$wpa .= <<<EOD
2485
# Enable the next lines for preauth when roaming. Interface = wired or wireless interface talking to the AP you want to roam from/to
2486
rsn_preauth=1
2487
rsn_preauth_interfaces={$if}
2488

    
2489
EOD;
2490

    
2491
}
2492
				if($wlcfg['auth_server_addr'] && $wlcfg['auth_server_shared_secret']) {
2493
					$auth_server_port = "1812";
2494
					if($wlcfg['auth_server_port'])
2495
						$auth_server_port = $wlcfg['auth_server_port'];
2496
					$auth_server_port2 = "1812";
2497
					if($wlcfg['auth_server_port2'])
2498
						$auth_server_port2 = $wlcfg['auth_server_port2'];
2499
					$wpa .= <<<EOD
2500

    
2501
ieee8021x=1
2502
auth_server_addr={$wlcfg['auth_server_addr']}
2503
auth_server_port={$auth_server_port}
2504
auth_server_shared_secret={$wlcfg['auth_server_shared_secret']}
2505
auth_server_addr={$wlcfg['auth_server_addr2']}
2506
auth_server_port={$auth_server_port2}
2507
auth_server_shared_secret={$wlcfg['auth_server_shared_secret2']}
2508

    
2509
EOD;
2510
				} else {
2511
					$wpa .= "ieee8021x={$wlcfg['wpa']['ieee8021x']}\n";
2512
				}
2513

    
2514
				$fd = fopen("{$g['varetc_path']}/hostapd_{$if}.conf", "w");
2515
				fwrite($fd, "{$wpa}");
2516
				fclose($fd);
2517

    
2518
			}
2519
			break;
2520
	}
2521

    
2522
	/*
2523
	 *    all variables are set, lets start up everything
2524
	 */
2525

    
2526
	$baseif = interface_get_wireless_base($if);
2527
	preg_match("/^(.*?)([0-9]*)$/", $baseif, $baseif_split);
2528
	$wl_sysctl_prefix = 'dev.' . $baseif_split[1] . '.' . $baseif_split[2];
2529

    
2530
	/* set sysctls for the wireless interface */
2531
	if (!empty($wl_sysctl)) {
2532
		fwrite($fd_set, "# sysctls for {$baseif}\n");
2533
		foreach ($wl_sysctl as $wl_sysctl_line) {
2534
			fwrite($fd_set, "{$sysctl} {$wl_sysctl_prefix}.{$wl_sysctl_line}\n");
2535
		}
2536
	}
2537

    
2538
	/* set ack timers according to users preference (if he/she has any) */
2539
	if($distance) {
2540
		fwrite($fd_set, "# Enable ATH distance settings\n");
2541
		fwrite($fd_set, "/sbin/athctrl.sh -i {$baseif} -d {$distance}\n");
2542
	}
2543

    
2544
	if (isset($wlcfg['wpa']['enable'])) {
2545
		if ($wlcfg['mode'] == "bss") {
2546
			fwrite($fd_set, "{$wpa_supplicant} -B -i {$if} -c {$g['varetc_path']}/wpa_supplicant_{$if}.conf\n");
2547
		}
2548
		if ($wlcfg['mode'] == "hostap") {
2549
			/* add line to script to restore old mac to make hostapd happy */
2550
			if (file_exists("{$g['tmp_path']}/{$if}_oldmac")) {
2551
				$if_oldmac = file_get_contents("{$g['tmp_path']}/{$if}_oldmac");
2552
				if (is_macaddr($if_oldmac))
2553
					fwrite($fd_set, "{$ifconfig} " . escapeshellarg($if) .
2554
						" link " . escapeshellarg($if_oldmac) . "\n");
2555
			}
2556

    
2557
			fwrite($fd_set, "{$hostapd} -B -P {$g['varrun_path']}/hostapd_{$if}.pid {$g['varetc_path']}/hostapd_{$if}.conf\n");
2558

    
2559
			/* add line to script to restore spoofed mac after running hostapd */
2560
			if (file_exists("{$g['tmp_path']}/{$if}_oldmac")) {
2561
				if ($wl['spoofmac'])
2562
					$if_curmac = $wl['spoofmac'];
2563
				else
2564
					$if_curmac = get_interface_mac($if);
2565
				if (is_macaddr($if_curmac))
2566
					fwrite($fd_set, "{$ifconfig} " . escapeshellarg($if) .
2567
						" link " . escapeshellarg($if_curmac) . "\n");
2568
			}
2569
		}
2570
	}
2571

    
2572
	fclose($fd_set);
2573
	conf_mount_ro();
2574

    
2575
	/* Making sure regulatory settings have actually changed
2576
	 * before applying, because changing them requires bringing
2577
	 * down all wireless networks on the interface. */
2578
	exec("{$ifconfig} " . escapeshellarg($if), $output);
2579
	$ifconfig_str = implode($output);
2580
	unset($output);
2581
	$reg_changing = false;
2582

    
2583
	/* special case for the debug country code */
2584
	if ($wlcfg['regcountry'] == 'DEBUG' && !preg_match("/\sregdomain\s+DEBUG\s/si", $ifconfig_str))
2585
		$reg_changing = true;
2586
	else if ($wlcfg['regdomain'] && !preg_match("/\sregdomain\s+{$wlcfg['regdomain']}\s/si", $ifconfig_str))
2587
		$reg_changing = true;
2588
	else if ($wlcfg['regcountry'] && !preg_match("/\scountry\s+{$wlcfg['regcountry']}\s/si", $ifconfig_str))
2589
		$reg_changing = true;
2590
	else if ($wlcfg['reglocation'] == 'anywhere' && preg_match("/\s(indoor|outdoor)\s/si", $ifconfig_str))
2591
		$reg_changing = true;
2592
	else if ($wlcfg['reglocation'] && $wlcfg['reglocation'] != 'anywhere' && !preg_match("/\s{$wlcfg['reglocation']}\s/si", $ifconfig_str))
2593
		$reg_changing = true;
2594

    
2595
	if ($reg_changing) {
2596
		/* set regulatory domain */
2597
		if($wlcfg['regdomain'])
2598
			$wlregcmd[] = "regdomain " . escapeshellarg($wlcfg['regdomain']);
2599

    
2600
		/* set country */
2601
		if($wlcfg['regcountry'])
2602
			$wlregcmd[] = "country " . escapeshellarg($wlcfg['regcountry']);
2603

    
2604
		/* set location */
2605
		if($wlcfg['reglocation'])
2606
			$wlregcmd[] = escapeshellarg($wlcfg['reglocation']);
2607

    
2608
		$wlregcmd_args = implode(" ", $wlregcmd);
2609

    
2610
		/* build a complete list of the wireless clones for this interface */
2611
		$clone_list = array();
2612
		if (does_interface_exist(interface_get_wireless_clone($baseif)))
2613
			$clone_list[] = interface_get_wireless_clone($baseif);
2614
		if (isset($config['wireless']['clone']) && is_array($config['wireless']['clone'])) {
2615
			foreach ($config['wireless']['clone'] as $clone) {
2616
				if ($clone['if'] == $baseif)
2617
					$clone_list[] = $clone['cloneif'];
2618
			}
2619
		}
2620

    
2621
		/* find which clones are up and bring them down */
2622
		$clones_up = array();
2623
		foreach ($clone_list as $clone_if) {
2624
			$clone_status = pfSense_get_interface_addresses($clone_if);
2625
			if ($clone_status['status'] == 'up') {
2626
				$clones_up[] = $clone_if;
2627
				mwexec("{$ifconfig} " . escapeshellarg($clone_if) . " down");
2628
			}
2629
		}
2630

    
2631
		/* apply the regulatory settings */
2632
		mwexec("{$ifconfig} " . escapeshellarg($if) . " {$wlregcmd_args}");
2633

    
2634
		/* bring the clones back up that were previously up */
2635
		foreach ($clones_up as $clone_if) {
2636
			mwexec("{$ifconfig} " . escapeshellarg($clone_if) . " up");
2637

    
2638
			/*
2639
			 * Rerun the setup script for the interface if it isn't this interface, the interface
2640
			 * is in infrastructure mode, and WPA is enabled.
2641
			 * This can be removed if wpa_supplicant stops dying when you bring the interface down.
2642
			 */
2643
			if ($clone_if != $if) {
2644
				$friendly_if = convert_real_interface_to_friendly_interface_name($clone_if);
2645
				if ( !empty($friendly_if)
2646
				    && $config['interfaces'][$friendly_if]['wireless']['mode'] == "bss"
2647
				    && isset($config['interfaces'][$friendly_if]['wireless']['wpa']['enable']) ) {
2648
					mwexec("/bin/sh {$g['tmp_path']}/{$clone_if}_setup.sh");
2649
				}
2650
			}
2651
		}
2652
	}
2653

    
2654
	/* The mode must be specified in a separate command before ifconfig
2655
	 * will allow the mode and channel at the same time in the next. */
2656
	mwexec("/sbin/ifconfig {$if} mode " . escapeshellarg($standard));
2657

    
2658
	/* configure wireless */
2659
	$wlcmd_args = implode(" ", $wlcmd);
2660
	mwexec("/sbin/ifconfig {$if} $wlcmd_args", false);
2661

    
2662

    
2663
	sleep(1);
2664
	/* execute hostapd and wpa_supplicant if required in shell */
2665
	mwexec("/bin/sh {$g['tmp_path']}/{$if}_setup.sh");
2666

    
2667
	return 0;
2668

    
2669
}
2670

    
2671
function kill_hostapd($interface) {
2672
	global $g;
2673

    
2674
	if (isvalidpid("{$g['varrun_path']}/hostapd_{$interface}.pid"))
2675
		return killbypid("{$g['varrun_path']}/hostapd_{$interface}.pid");
2676
}
2677

    
2678
function kill_wpasupplicant($interface) {
2679
	return "/bin/pkill -f \"wpa_supplicant .*{$interface}\\.conf\"\n";
2680
}
2681

    
2682
function find_dhclient_process($interface) {
2683
	if ($interface)
2684
		$pid = `/bin/pgrep -axf "dhclient: {$interface}"`;
2685
	else
2686
		$pid = 0;
2687

    
2688
	return intval($pid);
2689
}
2690

    
2691
function find_dhcp6c_process($interface) {
2692
	global $g;
2693

    
2694
	if ($interface)
2695
		if (isvalidpid("{$g['varrun_path']}/dhcp6c_{$interface}.pid"))
2696
			$pid = trim(file_get_contents("{$g['varrun_path']}/dhcp6c_{$interface}.pid"), " \n");
2697
	else
2698
		return(false);
2699

    
2700
	return intval($pid);
2701
}
2702

    
2703
function interface_vlan_mtu_configured($realhwif, $mtu) {
2704
	global $config;
2705

    
2706
	if (is_array($config['vlans']['vlan'])) {
2707
		foreach ($config['vlans']['vlan'] as $vlan) {
2708
			if ($vlan['if'] != $realhwif)
2709
				continue;
2710
			$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
2711
			if (!empty($assignedport)) {
2712
				$portmtu = $config['interfaces'][$assignedport]['mtu'];
2713
				if (!empty($portmtu) && $portmtu > $mtu)
2714
					$mtu = $portmtu;
2715
			}
2716
		}
2717
	}
2718

    
2719
	return $mtu;
2720
}
2721

    
2722
function interface_configure($interface = "wan", $reloadall = false, $linkupevent = false) {
2723
	global $config, $g;
2724
	global $interface_sn_arr_cache, $interface_ip_arr_cache;
2725
	global $interface_snv6_arr_cache, $interface_ipv6_arr_cache;
2726

    
2727
	$wancfg = $config['interfaces'][$interface];
2728

    
2729
	if (!isset($wancfg['enable']))
2730
		return;
2731

    
2732
	$realif = get_real_interface($interface);
2733
	$realhwif_array = get_parent_interface($interface);
2734
	// Need code to handle MLPPP if we ever use $realhwif for MLPPP handling
2735
	$realhwif = $realhwif_array[0];
2736

    
2737
	/* Disable Accepting router advertisements unless specifically requested */
2738
	if ($g['debug'])
2739
		log_error("Deny router advertisements for interface {$interface}");
2740
	mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " inet6 -accept_rtadv");
2741

    
2742
	if (!$g['booting'] && !(substr($realif, 0, 4) == "ovpn")) {
2743
		/* remove all IPv4 and IPv6 addresses */
2744
		while (mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " -alias", true) == 0);
2745
		while (mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " inet6 -alias", true) == 0);
2746

    
2747
		/* only bring down the interface when both v4 and v6 are set to NONE */
2748
		if(empty($wancfg['ipaddr']) && empty($wancfg['ipaddrv6'])) {
2749
			interface_bring_down($interface);
2750
		}
2751
	}
2752

    
2753
	/* wireless configuration? */
2754
	if (is_array($wancfg['wireless']))
2755
		interface_wireless_configure($realif, $wancfg, $wancfg['wireless']);
2756

    
2757
	$mac = get_interface_mac($realhwif);
2758
	/*
2759
	 * Don't try to reapply the spoofed MAC if it's already applied.
2760
	 * When ifconfig link is used, it cycles the interface down/up, which triggers
2761
	 * the interface config again, which attempts to spoof the MAC again,
2762
	 * which cycles the link again...
2763
	 */
2764
	if ($wancfg['spoofmac'] && ($wancfg['spoofmac'] != $mac)) {
2765
		mwexec("/sbin/ifconfig " . escapeshellarg($realhwif) .
2766
			" link " . escapeshellarg($wancfg['spoofmac']));
2767

    
2768
		/*
2769
		 * All vlans need to spoof their parent mac address, too.  see
2770
		 * ticket #1514: http://cvstrac.pfsense.com/tktview?tn=1514,33
2771
		 */
2772
		if (is_array($config['vlans']['vlan'])) {
2773
			foreach ($config['vlans']['vlan'] as $vlan) {
2774
				if ($vlan['if'] == $realhwif)
2775
					mwexec("/sbin/ifconfig " . escapeshellarg($vlan['vlanif']) .
2776
					" link " . escapeshellarg($wancfg['spoofmac']));
2777
			}
2778
		}
2779
	}  else {
2780

    
2781
		if ($mac == "ff:ff:ff:ff:ff:ff") {
2782
			/*   this is not a valid mac address.  generate a
2783
			 *   temporary mac address so the machine can get online.
2784
			 */
2785
			echo gettext("Generating new MAC address.");
2786
			$random_mac = generate_random_mac_address();
2787
			mwexec("/sbin/ifconfig " . escapeshellarg($realhwif) .
2788
				" link " . escapeshellarg($random_mac));
2789
			$wancfg['spoofmac'] = $random_mac;
2790
			write_config();
2791
			file_notice("MAC Address altered", sprintf(gettext('The INVALID MAC address (ff:ff:ff:ff:ff:ff) on interface %1$s has been automatically replaced with %2$s'), $realif, $random_mac), "Interfaces");
2792
		}
2793
	}
2794

    
2795
	/* media */
2796
	if ($wancfg['media'] || $wancfg['mediaopt']) {
2797
		$cmd = "/sbin/ifconfig " . escapeshellarg($realhwif);
2798
		if ($wancfg['media'])
2799
			$cmd .= " media " . escapeshellarg($wancfg['media']);
2800
		if ($wancfg['mediaopt'])
2801
			$cmd .= " mediaopt " . escapeshellarg($wancfg['mediaopt']);
2802
		mwexec($cmd);
2803
	}
2804
	$options = pfSense_get_interface_addresses($realhwif);
2805
	if (is_array($options) && isset($options['caps']['polling'])) {
2806
		if (isset($config['system']['polling']))
2807
			pfSense_interface_capabilities($realif, IFCAP_POLLING);
2808
		else
2809
			pfSense_interface_capabilities($realif, -IFCAP_POLLING);
2810
	}
2811

    
2812
	/* skip vlans for checksumming and polling */
2813
	if (!stristr($realif, "_vlan") && is_array($options)) {
2814
		$flags = 0;
2815
		if(isset($config['system']['disablechecksumoffloading'])) {
2816
			if (isset($options['encaps']['txcsum']))
2817
				$flags |= IFCAP_TXCSUM;
2818
			if (isset($options['encaps']['rxcsum']))
2819
				$flags |= IFCAP_RXCSUM;
2820
		} else {
2821
			if (!isset($options['caps']['txcsum']))
2822
				$flags |= IFCAP_TXCSUM;
2823
			if (!isset($options['caps']['rxcsum']))
2824
				$flags |= IFCAP_RXCSUM;
2825
		}
2826

    
2827
		if(isset($config['system']['disablesegmentationoffloading'])) {
2828
			if (isset($options['encaps']['tso4']))
2829
				$flags |= IFCAP_TSO;
2830
			if (isset($options['encaps']['tso6']))
2831
				$flags |= IFCAP_TSO;
2832
		} else {
2833
			if (!isset($options['caps']['tso4']))
2834
				$flags |= IFCAP_TSO;
2835
			if (!isset($options['caps']['tso6']))
2836
				$flags |= IFCAP_TSO;
2837
		}
2838

    
2839
		if(isset($config['system']['disablelargereceiveoffloading'])) {
2840
			if (isset($options['encaps']['lro']))
2841
				$flags |= IFCAP_LRO;
2842
		} else {
2843
			if (!isset($options['caps']['lro']))
2844
				$flags |= IFCAP_LRO;
2845
		}
2846

    
2847
		/* if the NIC supports polling *AND* it is enabled in the GUI */
2848
		if (!isset($config['system']['polling']) || !isset($options['caps']['polling'])) {
2849
			$flags |= IFCAP_POLLING;
2850
		}
2851
		pfSense_interface_capabilities($realhwif, -$flags);
2852
	}
2853

    
2854
	/* invalidate interface/ip/sn cache */
2855
	get_interface_arr(true);
2856
	unset($interface_ip_arr_cache[$realif]);
2857
	unset($interface_sn_arr_cache[$realif]);
2858
	unset($interface_ipv6_arr_cache[$realif]);
2859
	unset($interface_snv6_arr_cache[$realif]);
2860

    
2861
	switch ($wancfg['ipaddr']) {
2862
		case 'dhcp':
2863
			interface_dhcp_configure($interface);
2864
			break;
2865
		case 'pppoe':
2866
		case 'l2tp':
2867
		case 'pptp':
2868
		case 'ppp':
2869
			interface_ppps_configure($interface);
2870
			break;
2871
		default:
2872
			if (is_ipaddr($wancfg['ipaddr']) && $wancfg['subnet'] <> "") {
2873
				pfSense_interface_setaddress($realif, "{$wancfg['ipaddr']}/{$wancfg['subnet']}");
2874
			} else if (substr($realif, 0, 3) == "gre") {
2875
				if (is_array($config['gres']['gre'])) {
2876
					foreach ($config['gres']['gre'] as $gre)
2877
						if ($gre['greif'] == $realif)
2878
							interface_gre_configure($gre);
2879
				}
2880
			} else if (substr($realif, 0, 3) == "gif") {
2881
				if (is_array($config['gifs']['gif'])) {
2882
					foreach ($config['gifs']['gif'] as $gif)
2883
						if($gif['gifif'] == $realif)
2884
							interface_gif_configure($gif);
2885
				}
2886
			} else if (substr($realif, 0, 4) == "ovpn") {
2887
				/* XXX: Should be done anything?! */
2888
			}
2889
			break;
2890
	}
2891

    
2892
	switch ($wancfg['ipaddrv6']) {
2893
		case 'slaac':
2894
		case 'dhcp6':
2895
			interface_dhcpv6_configure($interface, $wancfg);
2896
			break;
2897
		case '6rd':
2898
			interface_6rd_configure($interface, $wancfg);
2899
			break;
2900
		case '6to4':
2901
			interface_6to4_configure($interface, $wancfg);
2902
			break;
2903
		case 'track6':
2904
			interface_track6_configure($interface, $wancfg);
2905
			break;
2906
		default:
2907
			if (is_ipaddr($wancfg['ipaddrv6']) && $wancfg['subnetv6'] <> "") {
2908
				pfSense_interface_setaddress($realif, "{$wancfg['ipaddrv6']}/{$wancfg['subnetv6']}");
2909
				// FIXME: Add IPv6 Support to the pfSense module
2910
				mwexec("/sbin/ifconfig {$realif} inet6 {$wancfg['ipaddrv6']} prefixlen {$wancfg['subnetv6']} ");
2911
			}
2912
			break;
2913
	}
2914

    
2915
	$mtu = get_interface_default_mtu(remove_ifindex($realhwif));
2916
	$assignedparent = convert_real_interface_to_friendly_interface_name($realhwif);
2917
	if (!empty($assignedparent) && !empty($config['interfaces'][$assignedparent]['mtu']))
2918
		$mtu = $config['interfaces'][$assignedparent]['mtu'];
2919

    
2920
	$vlanifs = link_interface_to_vlans($realhwif);
2921
	if (empty($vlanifs))
2922
		$vlanifs = array();
2923

    
2924
	if (!empty($wancfg['mtu'])) {
2925
		if (stristr($realif, "_vlan")) {
2926
			if (!empty($assignedparent)) {
2927
				$parentmtu = $config['interfaces'][$assignedparent]['mtu'];
2928
				if (empty($parentmtu))
2929
					$parentmtu = interface_vlan_mtu_configured($realhwif, $wancfg['mtu']);
2930
				if ($wancfg['mtu'] > $parentmtu) {
2931
					if (get_interface_mtu($realhwif) != $wancfg['mtu'])
2932
						pfSense_interface_mtu($realhwif, $wancfg['mtu']);
2933

    
2934
					/* All vlans need to use the same mtu value as their parent. */
2935
					foreach ($vlanifs as $vlan) {
2936
						if ($vlan['vlanif'] == $realif)
2937
							continue;
2938
						$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
2939
						if (!empty($assignedport)) {
2940
							$portmtu = $config['interfaces'][$assignedport]['mtu'];
2941
							if (empty($portmtu) && (get_interface_mtu($vlan['vlanif']) != $wancfg['mtu']))
2942
								pfSense_interface_mtu($vlan['vlanif'], $wancfg['mtu']);
2943
						} else if (get_interface_mtu($vlan['vlanif']) != $wancfg['mtu'])
2944
							pfSense_interface_mtu($vlan['vlanif'], $wancfg['mtu']);
2945
					}
2946
				}
2947
			} else {
2948
				/* Parent is not assigned, back to default */
2949
				if (get_interface_mtu($realhwif) != $mtu)
2950
					pfSense_interface_mtu($realhwif, $mtu);
2951

    
2952
				/* All vlans need to use the same mtu value as their parent. */
2953
				foreach ($vlanifs as $vlan) {
2954
					if ($vlan['vlanif'] == $realif)
2955
						continue;
2956
					$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
2957
					if (!empty($assignedport)) {
2958
						$portmtu = $config['interfaces'][$assignedport]['mtu'];
2959
						if (empty($portmtu) && (get_interface_mtu($vlan['vlanif']) != $mtu))
2960
							pfSense_interface_mtu($vlan['vlanif'], $mtu);
2961
					} else if (get_interface_mtu($vlan['vlanif']) != $mtu)
2962
						pfSense_interface_mtu($vlan['vlanif'], $mtu);
2963
				}
2964

    
2965
				if (get_interface_mtu($realif) != $wancfg['mtu'])
2966
					pfSense_interface_mtu($realif, $wancfg['mtu']);
2967
			}
2968
		} else {
2969
			foreach ($vlanifs as $vlan) {
2970
				$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
2971
				if (empty($assignedport)) {
2972
					if (get_interface_mtu($vlan['vlanif']) != $wancfg['mtu'])
2973
						pfSense_interface_mtu($vlan['vlanif'], $wancfg['mtu']);
2974
				} else {
2975
					$vlanmtu = $config['interfaces'][$assignedport]['mtu'];
2976
					if ((empty($vlanmtu) || ($vlanmtu >= $wancfg['mtu'])) && (get_interface_mtu($vlan['vlanif']) != $wancfg['mtu']))
2977
						pfSense_interface_mtu($vlan['vlanif'], $wancfg['mtu']);
2978
				}
2979
			}
2980
		}
2981
		if ($wancfg['mtu'] != get_interface_mtu($realif))
2982
			pfSense_interface_mtu($realif, $wancfg['mtu']);
2983
	} else if (stristr($realif, "_vlan")) {
2984
		/* XXX: This is really dangerous for example with vlans changing their parent mtu! */
2985
		$bigmtu = interface_vlan_mtu_configured($realhwif, $mtu);
2986
		if ($mtu < $bigmtu)
2987
			$mtu = $bigmtu;
2988

    
2989
		if (get_interface_mtu($realhwif) != $mtu)
2990
			pfSense_interface_mtu($realhwif, $mtu);
2991

    
2992
		/* All vlans need to use the same mtu value as their parent. */
2993
		foreach ($vlanifs as $vlan) {
2994
			if ($vlan['vlanif'] == $realif)
2995
				continue;
2996
			$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
2997
			if (!empty($assignedport)) {
2998
				$portmtu = $config['interfaces'][$assignedport]['mtu'];
2999
				if (empty($portmtu) && (get_interface_mtu($vlan['vlanif']) != $mtu))
3000
					pfSense_interface_mtu($vlan['vlanif'], $mtu);
3001
			} else if (get_interface_mtu($vlan['vlanif']) != $mtu)
3002
				pfSense_interface_mtu($vlan['vlanif'], $mtu);
3003
		}
3004
		if (get_interface_mtu($realif) != $mtu)
3005
			pfSense_interface_mtu($realif, $mtu);
3006
	} else {
3007
		/* All vlans need to use the same mtu value as their parent. */
3008
		foreach ($vlanifs as $vlan) {
3009
			$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
3010
			if (!empty($assignedport)) {
3011
				$portmtu = $config['interfaces'][$assignedport]['mtu'];
3012
				if (empty($portmtu) && (get_interface_mtu($vlan['vlanif']) != $mtu))
3013
					pfSense_interface_mtu($vlan['vlanif'], $mtu);
3014
			} else if (get_interface_mtu($vlan['vlanif']) != $mtu)
3015
				pfSense_interface_mtu($vlan['vlanif'], $mtu);
3016
		}
3017
		if ($mtu != get_interface_mtu($realhwif))
3018
			pfSense_interface_mtu($realhwif, $mtu);
3019
	}
3020

    
3021
	unset($vlanifs);
3022

    
3023
	if(does_interface_exist($wancfg['if']))
3024
		interfaces_bring_up($wancfg['if']);
3025

    
3026
	interface_netgraph_needed($interface);
3027

    
3028
	if (!$g['booting']) {
3029
		link_interface_to_vips($interface, "update");
3030

    
3031
		unset($gre);
3032
		$gre = link_interface_to_gre($interface);
3033
		if (!empty($gre))
3034
			array_walk($gre, 'interface_gre_configure');
3035

    
3036
		unset($gif);
3037
		$gif = link_interface_to_gif($interface);
3038
		if (!empty($gif))
3039
			array_walk($gif, 'interface_gif_configure');
3040

    
3041
		if ($linkupevent == false || substr($realif, 0, 4) == "ovpn") {
3042
			unset($bridgetmp);
3043
			$bridgetmp = link_interface_to_bridge($interface);
3044
			if (!empty($bridgetmp))
3045
				interface_bridge_add_member($bridgetmp, $realif);
3046
		}
3047

    
3048
		$grouptmp = link_interface_to_group($interface);
3049
		if (!empty($grouptmp))
3050
			array_walk($grouptmp, 'interface_group_add_member');
3051

    
3052
		if ($interface == "lan")
3053
			/* make new hosts file */
3054
			system_hosts_generate();
3055

    
3056
		if ($reloadall == true) {
3057

    
3058
			/* reconfigure static routes (kernel may have deleted them) */
3059
			system_routing_configure($interface);
3060

    
3061
			/* reload ipsec tunnels */
3062
			vpn_ipsec_configure();
3063

    
3064
			/* restart dnsmasq */
3065
			services_dnsmasq_configure();
3066

    
3067
			/* update dyndns */
3068
			send_event("service reload dyndns {$interface}");
3069

    
3070
			/* reload captive portal */
3071
			captiveportal_init_rules();
3072
		}
3073
	}
3074

    
3075
	return 0;
3076
}
3077

    
3078
function interface_track6_configure($interface = "lan", $wancfg) {
3079
	global $config, $g;
3080

    
3081
	if (!is_array($wancfg))
3082
		return;
3083

    
3084
	if (!isset($wancfg['enable']))
3085
		return;
3086

    
3087
	/* If the interface is not configured via another, exit */
3088
	if (empty($wancfg['track6-interface']))
3089
		return;
3090

    
3091
	/* always configure a link-local of fe80::1:1 on the track6 interfaces */
3092
	$realif = get_real_interface($interface);
3093
	mwexec("/sbin/ifconfig {$realif} inet6 fe80::1:1%{$realif}");
3094

    
3095
	$trackcfg = $config['interfaces'][$wancfg['track6-interface']];
3096
	if (!isset($trackcfg['enable'])) {
3097
		log_error("Interface {$interface} tracking non-existant interface {$wancfg['track6-interface']}");
3098
		return;
3099
	}
3100

    
3101
	switch($trackcfg['ipaddrv6']) {
3102
	case "6to4":
3103
		if ($g['debug'])
3104
			log_error("Interface {$interface} configured via {$wancfg['track6-interface']}  type {$type}");
3105
		interface_track6_6to4_configure($interface, $wancfg);
3106
		break;
3107
	case "6rd":
3108
		if ($g['debug'])
3109
			log_error("Interface {$interface} configured via {$wancfg['track6-interface']}  type {$type}");
3110
		interface_track6_6rd_configure($interface, $wancfg);
3111
		break;
3112
	case "dhcp6":
3113
		if ($g['debug'])
3114
			log_error("Interface {$interface} configured via {$wancfg['track6-interface']}  type {$type}");
3115
		interface_track6_dhcp6_configure($interface, $wancfg);
3116
		break;
3117
	}
3118

    
3119
	if (!$g['booting']) {
3120
		if (!function_exists('services_dhcpd_configure'))
3121
			require_once("services.inc");
3122

    
3123
		services_dhcpd_configure("inet6");
3124
	}
3125

    
3126
	return 0;
3127
}
3128

    
3129
function interface_track6_6rd_configure($interface = "lan", $lancfg) {
3130
	global $config, $g;
3131
	global $interface_ipv6_arr_cache;
3132
        global $interface_snv6_arr_cache;
3133

    
3134
	if (!is_array($lancfg))
3135
		return;
3136

    
3137
	/* If the interface is not configured via another, exit */
3138
	if (empty($lancfg['track6-interface']))
3139
		return;
3140

    
3141
	if (!is_numeric($lancfg['track6-prefix-id']))
3142
		$lancfg['track6-prefix-id'] = 0;
3143

    
3144
	$wancfg = $config['interfaces'][$lancfg['track6-interface']];
3145
	if (empty($wancfg)) {
3146
		log_error("Interface {$interface} tracking non-existant interface {$lancfg['track6-interface']}");
3147
		return;
3148
	}
3149

    
3150
	$ip4address = get_interface_ip($lancfg['track6-interface']);
3151
	if (!is_ipaddrv4($ip4address)) { /* XXX: This should not be needed by 6rd || (is_private_ip($ip4address))) { */
3152
		log_error("The interface IPv4 '{$ip4address}' address on interface '{$lancfg['track6-interface']}' is not public, not configuring 6RD tunnel");
3153
		return;
3154
	}
3155
	$hexwanv4 = return_hex_ipv4($ip4address);
3156

    
3157
	/* create the long prefix notation for math, save the prefix length */
3158
	$rd6prefix = explode("/", $wancfg['prefix-6rd']);
3159
	$rd6prefixlen = $rd6prefix[1];
3160
	$rd6prefix = Net_IPv6::uncompress($rd6prefix[0]);
3161

    
3162
	/* binary presentation of the prefix for all 128 bits. */
3163
	$rd6lanbin = convert_ipv6_to_128bit($rd6prefix);
3164

    
3165
	/* just save the left prefix length bits */
3166
	$rd6lanbin = substr($rd6lanbin, 0, $rd6prefixlen);
3167
	/* add the v4 address, offset n bits from the left */
3168
	$rd6lanbin .= substr(sprintf("%032b", hexdec($hexwanv4)), (0 + $wancfg['prefix-6rd-v4plen']), 32);
3169

    
3170
	/* add the custom prefix id, max 32bits long? (64 bits - (prefixlen + (32 - v4plen)) */
3171
	/* 64 - (37 + (32 - 17)) = 8 == /52 */
3172
	$restbits = 64 - ($rd6prefixlen + (32 - $wancfg['prefix-6rd-v4plen']));
3173
	// echo "64 - (prefixlen {$rd6prefixlen} + v4len (32 - {$wancfg['prefix-6rd-v4plen']})) = {$restbits} \n";
3174
	$rd6lanbin .= substr(sprintf("%032b", str_pad($lancfg['track6-prefix-id'], 32, "0", STR_PAD_LEFT)), (32 - $restbits), 32);
3175
	/* fill the rest out with zeros */
3176
	$rd6lanbin = str_pad($rd6lanbin, 128, "0", STR_PAD_RIGHT);;
3177

    
3178
	/* convert the 128 bits for the lan address back into a valid IPv6 address */
3179
	$rd6lan = convert_128bit_to_ipv6($rd6lanbin) ."1";
3180

    
3181
	$lanif = get_real_interface($interface);
3182
	$oip = find_interface_ipv6($lanif);
3183
	if (is_ipaddrv6($oip))
3184
		mwexec("/sbin/ifconfig {$lanif} inet6 {$oip} delete");
3185
	unset($interface_ipv6_arr_cache[$lanif]);
3186
	unset($interface_snv6_arr_cache[$lanif]);
3187
	log_error("rd6 {$interface} with ipv6 address {$rd6lan} based on {$lancfg['track6-interface']} ipv4 {$ip4address}");
3188
	mwexec("/sbin/ifconfig {$lanif} inet6 {$rd6lan} prefixlen 64");
3189

    
3190
	return 0;
3191
}
3192

    
3193
function interface_track6_6to4_configure($interface = "lan", $lancfg) {
3194
	global $config, $g;
3195
	global $interface_ipv6_arr_cache;
3196
        global $interface_snv6_arr_cache;
3197

    
3198
	if (!is_array($lancfg))
3199
		return;
3200

    
3201
	/* If the interface is not configured via another, exit */
3202
	if (empty($lancfg['track6-interface']))
3203
		return;
3204

    
3205
	$wancfg = $config['interfaces'][$lancfg['track6-interface']];
3206
	if (empty($wancfg)) {
3207
		log_error("Interface {$interface} tracking non-existant interface {$lancfg['track6-interface']}");
3208
		return;
3209
	}
3210

    
3211
	if (!is_numeric($lancfg['track6-prefix-id']))
3212
		$lancfg['track6-prefix-id'] = 0;
3213

    
3214
	$ip4address = get_interface_ip($lancfg['track6-interface']);
3215
	if (!is_ipaddrv4($ip4address) || is_private_ip($ip4address)) {
3216
		log_error("The interface IPv4 '{$ip4address}' address on interface '{$lancfg['track6-interface']}' is not public, not configuring 6RD tunnel");
3217
		return;
3218
	}
3219
	$hexwanv4 = return_hex_ipv4($ip4address);
3220

    
3221
	/* create the long prefix notation for math, save the prefix length */
3222
	$sixto4prefix = "2002::";
3223
	$sixto4prefixlen = 16;
3224
	$sixto4prefix = Net_IPv6::uncompress($sixto4prefix);
3225

    
3226
	/* binary presentation of the prefix for all 128 bits. */
3227
	$sixto4lanbin = convert_ipv6_to_128bit($sixto4prefix);
3228

    
3229
	/* just save the left prefix length bits */
3230
	$sixto4lanbin = substr($sixto4lanbin, 0, $sixto4prefixlen);
3231
	/* add the v4 address */
3232
	$sixto4lanbin .= sprintf("%032b", hexdec($hexwanv4));
3233
	/* add the custom prefix id */
3234
	$sixto4lanbin .= sprintf("%016b", $lancfg['track6-prefix-id']);
3235
	/* fill the rest out with zeros */
3236
	$sixto4lanbin = str_pad($sixto4lanbin, 128, "0", STR_PAD_RIGHT);;
3237

    
3238
	/* convert the 128 bits for the lan address back into a valid IPv6 address */
3239
	$sixto4lan = convert_128bit_to_ipv6($sixto4lanbin) ."1";
3240

    
3241
	$lanif = get_real_interface($interface);
3242
	$oip = find_interface_ipv6($lanif);
3243
	if (is_ipaddrv6($oip))
3244
		mwexec("/sbin/ifconfig {$lanif} inet6 {$oip} delete");
3245
	unset($interface_ipv6_arr_cache[$lanif]);
3246
	unset($interface_snv6_arr_cache[$lanif]);
3247
	log_error("sixto4 {$interface} with ipv6 address {$sixto4lan} based on {$lancfg['track6-interface']} ipv4 {$ip4address}");
3248
	mwexec("/sbin/ifconfig {$lanif} inet6 {$sixto4lan} prefixlen 64");
3249

    
3250
	return 0;
3251
}
3252

    
3253
function interface_track6_dhcp6_configure($interface = "lan", $lancfg) {
3254
	global $config, $g;
3255
	global $interface_ipv6_arr_cache;
3256
        global $interface_snv6_arr_cache;
3257

    
3258
	if (!is_array($lancfg))
3259
		return;
3260

    
3261
	/* If the interface is not configured via another, exit */
3262
	if (empty($lancfg['track6-interface']))
3263
		return;
3264

    
3265
	if (!is_numeric($lancfg['track6-prefix-id']))
3266
		$lancfg['track6-prefix-id'] = 0;
3267

    
3268
	$wancfg = $config['interfaces'][$lancfg['track6-interface']];
3269
	if (empty($wancfg)) {
3270
		log_error("Interface {$interface} tracking non-existant interface {$lancfg['track6-interface']}");
3271
		return;
3272
	}
3273

    
3274
	$lanif = get_real_interface($interface);
3275
	$oip = find_interface_ipv6($lanif);
3276
	if (is_ipaddrv6($oip))
3277
		mwexec("/sbin/ifconfig {$lanif} inet6 {$oip} delete");
3278
	unset($interface_ipv6_arr_cache[$lanif]);
3279
	unset($interface_snv6_arr_cache[$lanif]);
3280

    
3281
	if ($wancfg['ipaddrv6'] == "slaac") {
3282
		$ifcfgipv6 = get_interface_ipv6($lancfg['track6-interface']);
3283
		if (is_ipaddrv6($ifcfgipv6)) {
3284
			$dhcp6lanarr = explode(":", Net_IPv6::uncompress($ifcfgipv6));
3285
			$dhcp6lanarr[4] = 0;
3286
			$dhcp6lanarr[5] = 0;
3287
			$dhcp6lanarr[6] = 0;
3288
			$dhcp6lanarr[7] = 1;
3289
			$dhcp6lan =  Net_IPv6::compress(implode(":", $dhcp6lanarr));
3290
			log_error("dhcp6 {$interface} with ipv6 address {$dhcp6lan} based on {$lancfg['track6-interface']}");
3291
			mwexec("/sbin/ifconfig {$lanif} inet6 {$dhcp6lan} prefixlen 64");
3292
		}
3293
	}
3294

    
3295
	return 0;
3296
}
3297

    
3298
function interface_6rd_configure($interface = "wan", $wancfg) {
3299
	global $config, $g;
3300

    
3301
	/* because this is a tunnel interface we can only function
3302
	 *	with a public IPv4 address on the interface */
3303

    
3304
	if (!is_array($wancfg))
3305
		return;
3306

    
3307
	$wanif = get_real_interface($interface);
3308
	$ip4address = find_interface_ip($wanif);
3309
	if ((!is_ipaddrv4($ip4address)) || (is_private_ip($ip4address))) {
3310
		log_error("The interface IPv4 '{$ip4address}' address on interface '{$wanif}' is not public, not configuring 6RD tunnel");
3311
		return false;
3312
	}
3313
	$hexwanv4 = return_hex_ipv4($ip4address);
3314

    
3315
	if (!is_numeric($wancfg['prefix-6rd-v4plen']))
3316
		$wancfg['prefix-6rd-v4plen'] = 0;
3317

    
3318
	/* create the long prefix notation for math, save the prefix length */
3319
	$rd6prefix = explode("/", $wancfg['prefix-6rd']);
3320
	$rd6prefixlen = $rd6prefix[1];
3321
	$rd6prefix = Net_IPv6::uncompress($rd6prefix[0]);
3322

    
3323
	/* we need the hex form of the broker IPv4 address */
3324
	$hexbrv4 = return_hex_ipv4($wancfg['gateway-6rd']);
3325

    
3326
	/* binary presentation of the prefix for all 128 bits. */
3327
	$rd6prefixbin = convert_ipv6_to_128bit($rd6prefix);
3328

    
3329
	/* just save the left prefix length bits */
3330
	$rd6brprefixbin = substr($rd6prefixbin, 0, $rd6prefixlen);
3331
	/* if the prefix length is not 32 bits we need to shave bits off from the left of the v4 address. */
3332
	$rd6brprefixbin .= substr(sprintf("%032b", hexdec($hexbrv4)), $wancfg['prefix-6rd-v4plen'], 32);
3333
	/* fill out the rest with 0's */
3334
	$rd6brprefixbin = str_pad($rd6brprefixbin, 128, "0", STR_PAD_RIGHT);
3335

    
3336
	/* convert the 128 bits for the broker address back into a valid IPv6 address */
3337
	$rd6brgw = convert_128bit_to_ipv6($rd6brprefixbin);
3338

    
3339
	/* just save the left prefix length bits */
3340
	$rd6prefixbin = substr($rd6prefixbin, 0, $rd6prefixlen);
3341
	/* if the prefix length is not 32 bits we need to shave bits off from the left of the v4 address. */
3342
	$rd6prefixbin .= substr(sprintf("%032b", hexdec($hexwanv4)), $wancfg['prefix-6rd-v4plen'], 32);
3343
	/* fill out the rest with 0's */
3344
	$rd6prefixbin = str_pad($rd6prefixbin, 128, "0", STR_PAD_RIGHT);;
3345

    
3346
	/* convert the 128 bits for the broker address back into a valid IPv6 address */
3347
	$rd6prefix = convert_128bit_to_ipv6($rd6prefixbin);
3348

    
3349
	/* XXX: need to extend to support variable prefix size for v4 */
3350
	if (!is_module_loaded("if_stf"))
3351
		mwexec("/sbin/kldload if_stf.ko");
3352
	$stfiface = "{$interface}_stf";
3353
	if (does_interface_exist($stfiface))
3354
		pfSense_interface_destroy($stfiface);
3355
	$tmpstfiface = pfSense_interface_create("stf");
3356
	pfSense_interface_rename($tmpstfiface, $stfiface);
3357
	pfSense_interface_flags($stfiface, IFF_LINK2);
3358
	mwexec("/sbin/ifconfig {$stfiface} inet6 {$rd6prefix}/{$rd6prefixlen}");
3359
	if ($g['debug'])
3360
		log_error("Created 6rd interface {$stfiface} {$rd6prefix}/{$rd6prefixlen}");
3361

    
3362
	/* write out a default router file */
3363
	file_put_contents("{$g['tmp_path']}/{$wanif}_routerv6", "{$rd6brgw}\n");
3364
	file_put_contents("{$g['tmp_path']}/{$wanif}_defaultgwv6", "{$rd6brgw}\n");
3365

    
3366
	$ip4gateway = get_interface_gateway($interface);
3367
	if (is_ipaddrv4($ip4gateway))
3368
		mwexec("/sbin/route change -host " . $wancfg['gateway-6rd'] . " {$ip4gateway}");
3369

    
3370
	/* configure dependent interfaces */
3371
	if (!$g['booting'])
3372
		link_interface_to_track6($interface, "update");
3373

    
3374
	return 0;
3375
}
3376

    
3377
function interface_6to4_configure($interface = "wan", $wancfg){
3378
	global $config, $g;
3379

    
3380
	/* because this is a tunnel interface we can only function
3381
	 *	with a public IPv4 address on the interface */
3382

    
3383
	if (!is_array($wancfg))
3384
		return;
3385

    
3386
	$wanif = get_real_interface($interface);
3387
	$ip4address = find_interface_ip($wanif);
3388
	if((!is_ipaddrv4($ip4address)) || (is_private_ip($ip4address))) {
3389
		log_error("The interface IPv4 '{$ip4address}' address on interface '{$wanif}' is not public, not configuring 6RD tunnel");
3390
		return false;
3391
	}
3392

    
3393
	/* create the long prefix notation for math, save the prefix length */
3394
	$stfprefixlen = 16;
3395
	$stfprefix = Net_IPv6::uncompress("2002::");
3396
	$stfarr = explode(":", $stfprefix);
3397
	$v4prefixlen = "0";
3398

    
3399
	/* we need the hex form of the interface IPv4 address */
3400
	$ip4arr = explode(".", $ip4address);
3401
	$hexwanv4 = "";
3402
	foreach($ip4arr as $octet)
3403
		$hexwanv4 .= sprintf("%02x", $octet);
3404

    
3405
	/* we need the hex form of the broker IPv4 address */
3406
	$ip4arr = explode(".", "192.88.99.1");
3407
	$hexbrv4 = "";
3408
	foreach($ip4arr as $octet)
3409
		$hexbrv4 .= sprintf("%02x", $octet);
3410

    
3411
	/* binary presentation of the prefix for all 128 bits. */
3412
	$stfprefixbin = "";
3413
	foreach($stfarr as $element) {
3414
		$stfprefixbin .= sprintf("%016b", hexdec($element));
3415
	}
3416
	/* just save the left prefix length bits */
3417
	$stfprefixstartbin = substr($stfprefixbin, 0, $stfprefixlen);
3418

    
3419
	/* if the prefix length is not 32 bits we need to shave bits off from the left of the v4 address. */
3420
	$stfbrokerbin = substr(sprintf("%032b", hexdec($hexbrv4)), $v4prefixlen, 32);
3421
	$stfbrokerbin = str_pad($stfprefixstartbin . $stfbrokerbin, 128, "0", STR_PAD_RIGHT);;
3422

    
3423
	/* for the local subnet too. */
3424
	$stflanbin = substr(sprintf("%032b", hexdec($hexwanv4)), $v4prefixlen, 32);
3425
	$stflanbin = str_pad($stfprefixstartbin . $stflanbin, 128, "0", STR_PAD_RIGHT);;
3426

    
3427
	/* convert the 128 bits for the broker address back into a valid IPv6 address */
3428
	$stfbrarr = array();
3429
	$stfbrbinarr = array();
3430
	$stfbrbinarr = str_split($stfbrokerbin, 16);
3431
	foreach($stfbrbinarr as $bin)
3432
		$stfbrarr[] = dechex(bindec($bin));
3433
	$stfbrgw = Net_IPv6::compress(implode(":", $stfbrarr));
3434

    
3435
	/* convert the 128 bits for the broker address back into a valid IPv6 address */
3436
	$stflanarr = array();
3437
	$stflanbinarr = array();
3438
	$stflanbinarr = str_split($stflanbin, 16);
3439
	foreach($stflanbinarr as $bin)
3440
		$stflanarr[] = dechex(bindec($bin));
3441
	$stflanpr = Net_IPv6::compress(implode(":", $stflanarr));
3442
	$stflanarr[7] = 1;
3443
	$stflan = Net_IPv6::compress(implode(":", $stflanarr));
3444

    
3445
	/* setup the stf interface */
3446
	if (!is_module_loaded("if_stf"))
3447
		mwexec("/sbin/kldload if_stf.ko");
3448
	$stfiface = "{$interface}_stf";
3449
	if (does_interface_exist($stfiface))
3450
		pfSense_interface_destroy($stfiface);
3451
	$tmpstfiface = pfSense_interface_create("stf");
3452
	pfSense_interface_rename($tmpstfiface, $stfiface);
3453
	pfSense_interface_flags($stfiface, IFF_LINK2);
3454
	mwexec("/sbin/ifconfig {$stfiface} inet6 {$stflanpr} prefixlen 16");
3455

    
3456
	if ($g['debug'])
3457
		log_error("Set IPv6 address inet6 {$stflanpr} prefixlen 16 for {$stfiface}, route {$stfbrgw}");
3458

    
3459
	/* write out a default router file */
3460
	file_put_contents("{$g['tmp_path']}/{$wanif}_routerv6", "{$stfbrgw}");
3461
	file_put_contents("{$g['tmp_path']}/{$wanif}_defaultgwv6", "{$stfbrgw}");
3462

    
3463
	$ip4gateway = get_interface_gateway($interface);
3464
	if (is_ipaddrv4($ip4gateway))
3465
		mwexec("route change -host 192.88.99.1 {$ip4gateway}");
3466

    
3467
	if (!$g['booting'])
3468
		link_interface_to_track6($interface, "update");
3469

    
3470
	return 0;
3471
}
3472

    
3473
function interface_dhcpv6_configure($interface = "wan", $wancfg) {
3474
	global $config, $g;
3475

    
3476
	if (!is_array($wancfg))
3477
		return;
3478

    
3479
	$wanif = get_real_interface($interface);
3480
	$dhcp6cconf = "";
3481
	$dhcp6cconf .= "interface {$wanif} {\n";
3482

    
3483
	/* for SLAAC interfaces we do fire off a dhcp6 client for just our name servers */
3484
	if($wancfg['ipaddrv6'] == "slaac") {
3485
		$dhcp6cconf .= "	information-only;\n";
3486
		$dhcp6cconf .= "	request domain-name-servers;\n";
3487
		$dhcp6cconf .= "	request domain-name;\n";
3488
		$dhcp6cconf .= "	script \"{$g['varetc_path']}/dhcp6c_{$interface}_script.sh\"; # we'd like some nameservers please\n";
3489
		$dhcp6cconf .= "};\n";
3490
	} else {
3491

    
3492
		$dhcp6cconf .= " 	send ia-na 0;	# request stateful address\n";
3493
		if(is_numeric($wancfg['dhcp6-ia-pd-len']))
3494
			$dhcp6cconf .= "	send ia-pd 0;	# request prefix delegation\n";
3495
		$dhcp6cconf .= "request domain-name-servers;\n";
3496
		$dhcp6cconf .= "request domain-name;\n";
3497
		$dhcp6cconf .= "script \"{$g['varetc_path']}/dhcp6c_{$interface}_script.sh\"; # we'd like some nameservers please\n";
3498

    
3499
		$dhcp6cconf .= "};\n";
3500
		$dhcp6cconf .= "id-assoc na 0 { };\n";
3501
		if(is_numeric($wancfg['dhcp6-ia-pd-len'])) {
3502
			/* Setup the prefix delegation */
3503
			$dhcp6cconf .= "id-assoc pd 0 {\n";
3504
			$iflist = link_interface_to_track6($interface);
3505
			foreach ($iflist as $friendly => $ifcfg) {
3506
				if (is_numeric($ifcfg['track6-prefix-id'])) {
3507
					if ($g['debug'])
3508
						log_error("setting up $ifdescr - {$ifcfg['track6-prefix-id']}");
3509
					$realif = get_real_interface($friendly);
3510
					$dhcp6cconf .= "	prefix-interface {$realif} {\n";
3511
					$dhcp6cconf .= "		sla-id {$ifcfg['track6-prefix-id']};\n";
3512
					$dhcp6cconf .= "		sla-len {$wancfg['dhcp6-ia-pd-len']};\n";
3513
					$dhcp6cconf .= "	};\n";
3514
				}
3515
			}
3516
			unset($iflist, $ifcfg);
3517
			$dhcp6cconf .= "};\n";
3518
		}
3519
	}
3520
	/* wide-dhcp6c works for now. */
3521
	if (!@file_put_contents("{$g['varetc_path']}/dhcp6c_{$interface}.conf", $dhcp6cconf)) {
3522
		printf("Error: cannot open dhcp6c_{$interface}.conf in interface_dhcpv6_configure() for writing.\n");
3523
		unset($dhcp6cconf);
3524
		return 1;
3525
	}
3526
	unset($dhcp6cconf);
3527

    
3528
	$dhcp6cscript = "#!/bin/sh\n";
3529
	$dhcp6cscript .= "# This shell script launches /etc/rc.newwanipv6 with a interface argument.\n";
3530
	$dhcp6cscript .= "/etc/rc.newwanipv6 {$wanif} \n";
3531
	/* Add wide-dhcp6c shell script here. Because we can not pass a argument to it. */
3532
	if (!@file_put_contents("{$g['varetc_path']}/dhcp6c_{$interface}_script.sh", $dhcp6cscript)) {
3533
		printf("Error: cannot open dhcp6c_{$interface}_script.sh in interface_dhcpv6_configure() for writing.\n");
3534
		unset($dhcp6cscript);
3535
		return 1;
3536
	}
3537
	unset($dhcp6cscript);
3538
	@chmod("{$g['varetc_path']}/dhcp6c_{$interface}_script.sh", 0755);
3539

    
3540
	$rtsoldscript = "#!/bin/sh\n";
3541
	$rtsoldscript .= "# This shell script launches dhcp6c and configured gateways for this interface.\n";
3542
	$rtsoldscript .= "echo $2 > {$g['tmp_path']}/{$wanif}_routerv6\n";
3543
	$rtsoldscript .= "echo $2 > {$g['tmp_path']}/{$wanif}_defaultgwv6\n";
3544
	$rtsoldscript .= "if [ -f {$g['varrun_path']}/dhcp6c_{$wanif}.pid ]; then\n";
3545
	$rtsoldscript .= "\tpkill -F {$g['varrun_path']}/dhcp6c_{$wanif}.pid\n";
3546
	$rtsoldscript .= "fi\n";
3547
	$rtsoldscript .= "/usr/local/sbin/dhcp6c -d -c {$g['varetc_path']}/dhcp6c_{$interface}.conf -p {$g['varrun_path']}/dhcp6c_{$wanif}.pid {$wanif}\n";
3548
	/* Add wide-dhcp6c shell script here. Because we can not pass a argument to it. */
3549
	if (!@file_put_contents("{$g['varetc_path']}/rtsold_{$wanif}_script.sh", $rtsoldscript)) {
3550
		printf("Error: cannot open rtsold_{$interface}_script.sh in interface_dhcpv6_configure() for writing.\n");
3551
		unset($rtsoldscript);
3552
		return 1;
3553
	}
3554
	unset($rtsoldscript);
3555
	@chmod("{$g['varetc_path']}/rtsold_{$wanif}_script.sh", 0755);
3556

    
3557
	/* accept router advertisements for this interface */
3558
	mwexec("/sbin/sysctl -w net.inet6.ip6.accept_rtadv=1");
3559
	log_error("Accept router advertisements on interface {$wanif} ");
3560
	mwexec("/sbin/ifconfig {$wanif} inet6 accept_rtadv");
3561

    
3562
	/* fire up rtsold for IPv6 RAs first, this backgrounds immediately. It will call dhcp6c */
3563
	if (isvalidpid("{$g['varrun_path']}/rtsold_{$wanif}.pid"))
3564
		killbypid("{$g['varrun_path']}/rtsold_{$wanif}.pid");
3565
	mwexec("/usr/sbin/rtsold -m -p {$g['varrun_path']}/rtsold_{$wanif}.pid -O {$g['varetc_path']}/rtsold_{$wanif}_script.sh {$wanif}");
3566

    
3567
	/* NOTE: will be called from rtsold invoked script 
3568
	 * link_interface_to_track6($interface, "update");
3569
	 */
3570

    
3571
	return 0;
3572
}
3573

    
3574
function interface_dhcp_configure($interface = "wan") {
3575
	global $config, $g;
3576

    
3577
	$wancfg = $config['interfaces'][$interface];
3578
	$wanif = $wancfg['if'];
3579
	if (empty($wancfg))
3580
		$wancfg = array();
3581

    
3582
	/* generate dhclient_wan.conf */
3583
	$fd = fopen("{$g['varetc_path']}/dhclient_{$interface}.conf", "w");
3584
	if (!$fd) {
3585
		printf(printf(gettext("Error: cannot open dhclient_%s.conf in interface_dhcp_configure() for writing.%s"), $interface, "\n"));
3586
		return 1;
3587
	}
3588

    
3589
	if ($wancfg['dhcphostname']) {
3590
		$dhclientconf_hostname = "send dhcp-client-identifier \"{$wancfg['dhcphostname']}\";\n";
3591
		$dhclientconf_hostname .= "\tsend host-name \"{$wancfg['dhcphostname']}\";\n";
3592
	} else {
3593
		$dhclientconf_hostname = "";
3594
	}
3595

    
3596
	$wanif = get_real_interface($interface);
3597
	if (empty($wanif)) {
3598
		log_error(sprintf(gettext("Invalid interface \"%s\" in interface_dhcp_configure()"), $interface));
3599
		return 0;
3600
	}
3601
	$dhclientconf = "";
3602

    
3603
	$dhclientconf .= <<<EOD
3604
interface "{$wanif}" {
3605
timeout 60;
3606
retry 15;
3607
select-timeout 0;
3608
initial-interval 1;
3609
	{$dhclientconf_hostname}
3610
	script "/sbin/dhclient-script";
3611
}
3612

    
3613
EOD;
3614

    
3615
if(is_ipaddr($wancfg['alias-address'])) {
3616
	$subnetmask = gen_subnet_mask($wancfg['alias-subnet']);
3617
	$dhclientconf .= <<<EOD
3618
alias {
3619
	interface  "{$wanif}";
3620
	fixed-address {$wancfg['alias-address']};
3621
	option subnet-mask {$subnetmask};
3622
}
3623

    
3624
EOD;
3625
}
3626
	fwrite($fd, $dhclientconf);
3627
	fclose($fd);
3628

    
3629
	/* bring wan interface up before starting dhclient */
3630
	if($wanif)
3631
		interfaces_bring_up($wanif);
3632
	else
3633
		log_error(printf(gettext("Could not bring up %s interface in interface_dhcp_configure()"), $wanif));
3634

    
3635
	$pid = find_dhclient_process($wanif);
3636
	if ($pid)
3637
		posix_kill($pid, SIGTERM);
3638
	/* fire up dhclient */
3639
	mwexec("/sbin/dhclient -c {$g['varetc_path']}/dhclient_{$interface}.conf {$wanif} > {$g['tmp_path']}/{$wanif}_output 2> {$g['tmp_path']}/{$wanif}_error_output");
3640

    
3641
	return 0;
3642
}
3643

    
3644
function interfaces_group_setup() {
3645
	global $config;
3646

    
3647
	if (!is_array($config['ifgroups']['ifgroupentry']))
3648
		return;
3649

    
3650
	foreach ($config['ifgroups']['ifgroupentry'] as $groupar)
3651
		interface_group_setup($groupar);
3652

    
3653
	return;
3654
}
3655

    
3656
function interface_group_setup(&$groupname /* The parameter is an array */) {
3657
	global $config;
3658

    
3659
	if (!is_array($groupname))
3660
		return;
3661
	$members = explode(" ", $groupname['members']);
3662
	foreach($members as $ifs) {
3663
		$realif = get_real_interface($ifs);
3664
		if ($realif)
3665
			mwexec("/sbin/ifconfig {$realif} group {$groupname['ifname']}");
3666
	}
3667

    
3668
	return;
3669
}
3670

    
3671
function is_interface_group($if) {
3672
	global $config;
3673

    
3674
	if (is_array($config['ifgroups']['ifgroupentry']))
3675
		foreach ($config['ifgroups']['ifgroupentry'] as $groupentry) {
3676
			if ($groupentry['ifname'] === $if)
3677
				return true;
3678
		}
3679

    
3680
	return false;
3681
}
3682

    
3683
function interface_group_add_member($interface, $groupname) {
3684
	$interface = get_real_interface($interface);
3685
	mwexec("/sbin/ifconfig {$interface} group {$groupname}", true);
3686
}
3687

    
3688
/* COMPAT Function */
3689
function convert_friendly_interface_to_real_interface_name($interface) {
3690
	return get_real_interface($interface);
3691
}
3692

    
3693
/* COMPAT Function */
3694
function get_real_wan_interface($interface = "wan") {
3695
	return get_real_interface($interface);
3696
}
3697

    
3698
/* COMPAT Function */
3699
function get_current_wan_address($interface = "wan") {
3700
	return get_interface_ip($interface);
3701
}
3702

    
3703
/*
3704
 * convert_real_interface_to_friendly_interface_name($interface): convert fxp0 -> wan, etc.
3705
 */
3706
function convert_real_interface_to_friendly_interface_name($interface = "wan") {
3707
	global $config;
3708

    
3709
	if (stristr($interface, "_vip")) {
3710
		foreach ($config['virtualip']['vip'] as $counter => $vip) {
3711
			if ($vip['mode'] == "carp")  {
3712
				if ($interface == "{$vip['interface']}_vip{$vip['vhid']}")
3713
					return $vip['interface'];
3714
			}
3715
		}
3716
	}
3717

    
3718
	/* XXX: For speed reasons reference directly the interface array */
3719
	$ifdescrs = &$config['interfaces'];
3720
	//$ifdescrs = get_configured_interface_list(false, true);
3721

    
3722
	if (strstr($interface, "_stf"))
3723
		$interface = str_replace("_stf", "", $interface);
3724

    
3725
	foreach ($ifdescrs as $if => $ifname) {
3726
		if ($if == $interface || $config['interfaces'][$if]['if'] == $interface)
3727
			return $if;
3728

    
3729
		if (stristr($interface, "_wlan0") && $config['interfaces'][$if]['if'] == interface_get_wireless_base($interface))
3730
			return $if;
3731

    
3732
		// XXX: This case doesn't work anymore (segfaults - recursion?) - should be replaced with something else or just removed.
3733
		//      Not to be replaced with get_real_interface - causes slow interface listings here because of recursion!
3734
		/*
3735
		$int = get_parent_interface($if);
3736
		if ($int[0] == $interface)
3737
			return $ifname;
3738
		 */
3739
	}
3740

    
3741
	return NULL;
3742
}
3743

    
3744
/* attempt to resolve interface to friendly descr */
3745
function convert_friendly_interface_to_friendly_descr($interface) {
3746
	global $config;
3747

    
3748
	switch ($interface) {
3749
	case "l2tp":
3750
		$ifdesc = "L2TP";
3751
		break;
3752
	case "pptp":
3753
		$ifdesc = "PPTP";
3754
		break;
3755
	case "pppoe":
3756
		$ifdesc = "PPPoE";
3757
		break;
3758
	case "openvpn":
3759
		$ifdesc = "OpenVPN";
3760
		break;
3761
	case "enc0":
3762
	case "ipsec":
3763
		$ifdesc = "IPsec";
3764
		break;
3765
	default:
3766
		if (isset($config['interfaces'][$interface])) {
3767
			if (empty($config['interfaces'][$interface]['descr']))
3768
				$ifdesc = strtoupper($interface);
3769
			else
3770
				$ifdesc = strtoupper($config['interfaces'][$interface]['descr']);
3771
			break;
3772
		} else if (stristr($interface, "_vip")) {
3773
			if (is_array($config['virtualip']['vip'])) {
3774
				foreach ($config['virtualip']['vip'] as $counter => $vip) {
3775
					if ($vip['mode'] == "carp")  {
3776
						if ($interface == "{$vip['interface']}_vip{$vip['vhid']}")
3777
							return "{$vip['subnet']} - {$vip['descr']}";
3778
					}
3779
				}
3780
			}
3781
		} else {
3782
			/* if list */
3783
			$ifdescrs = get_configured_interface_with_descr(false, true);
3784
			foreach ($ifdescrs as $if => $ifname) {
3785
				if ($if == $interface || $ifname == $interface)
3786
					return $ifname;
3787
			}
3788
		}
3789
		break;
3790
	}
3791

    
3792
	return $ifdesc;
3793
}
3794

    
3795
function convert_real_interface_to_friendly_descr($interface) {
3796
	global $config;
3797

    
3798
	$ifdesc = convert_real_interface_to_friendly_interface_name("{$interface}");
3799

    
3800
	if ($ifdesc) {
3801
		$iflist = get_configured_interface_with_descr(false, true);
3802
		return $iflist[$ifdesc];
3803
	}
3804

    
3805
	return $interface;
3806
}
3807

    
3808
/*
3809
 *  get_parent_interface($interface):
3810
 *			--returns the (real or virtual) parent interface(s) array for a given interface friendly name (i.e. wan)
3811
 *				or virtual interface (i.e. vlan)
3812
 *				(We need array because MLPPP and bridge interfaces have more than one parent.)
3813
 *			-- returns $interface passed in if $interface parent is not found
3814
 *			-- returns empty array if an invalid interface is passed
3815
 *	(Only handles ppps and vlans now.)
3816
 */
3817
function get_parent_interface($interface) {
3818
	global $config;
3819

    
3820
	$parents = array();
3821
	//Check that we got a valid interface passed
3822
	$realif = get_real_interface($interface);
3823
	if ($realif == NULL)
3824
		return $parents;
3825

    
3826
	// If we got a real interface, find it's friendly assigned name
3827
	$interface = convert_real_interface_to_friendly_interface_name($interface);
3828

    
3829
	if (!empty($interface) && isset($config['interfaces'][$interface])) {
3830
		$ifcfg = $config['interfaces'][$interface];
3831
		switch ($ifcfg['ipaddr']) {
3832
			case "ppp":
3833
			case "pppoe":
3834
			case "pptp":
3835
			case "l2tp":
3836
				if (empty($parents))
3837
					if (is_array($config['ppps']['ppp']))
3838
						foreach ($config['ppps']['ppp'] as $pppidx => $ppp) {
3839
							if ($ifcfg['if'] == $ppp['if']) {
3840
								$ports = explode(',', $ppp['ports']);
3841
								foreach ($ports as $pid => $parent_if)
3842
									$parents[$pid] = get_real_interface($parent_if);
3843
								break;
3844
							}
3845
						}
3846
				break;
3847
			case "dhcp":
3848
			case "static":
3849
			default:
3850
				// Handle _vlans
3851
				if (stristr($realif,"_vlan"))
3852
					if (is_array($config['vlans']['vlan']))
3853
						foreach ($config['vlans']['vlan'] as $vlanidx => $vlan)
3854
							if ($ifcfg['if'] == $vlan['vlanif']){
3855
								$parents[0] = $vlan['if'];
3856
								break;
3857
							}
3858
				break;
3859
		}
3860
	}
3861

    
3862
	if (empty($parents))
3863
		$parents[0] = $realif;
3864

    
3865
	return $parents;
3866
}
3867

    
3868
function interface_is_wireless_clone($wlif) {
3869
	if(!stristr($wlif, "_wlan")) {
3870
		return false;
3871
	} else {
3872
		return true;
3873
	}
3874
}
3875

    
3876
function interface_get_wireless_base($wlif) {
3877
	if(!stristr($wlif, "_wlan")) {
3878
		return $wlif;
3879
	} else {
3880
		return substr($wlif, 0, stripos($wlif, "_wlan"));
3881
	}
3882
}
3883

    
3884
function interface_get_wireless_clone($wlif) {
3885
	if(!stristr($wlif, "_wlan")) {
3886
		return $wlif . "_wlan0";
3887
	} else {
3888
		return $wlif;
3889
	}
3890
}
3891

    
3892
function get_real_interface($interface = "wan", $family = "all") {
3893
	global $config, $g;
3894

    
3895
	$wanif = NULL;
3896

    
3897
	switch ($interface) {
3898
	case "l2tp":
3899
		$wanif = "l2tp";
3900
		break;
3901
	case "pptp":
3902
		$wanif = "pptp";
3903
		break;
3904
	case "pppoe":
3905
		$wanif = "pppoe";
3906
		break;
3907
	case "openvpn":
3908
		$wanif = "openvpn";
3909
		break;
3910
	case "ipsec":
3911
	case "enc0":
3912
		$wanif = "enc0";
3913
		break;
3914
	case "ppp":
3915
		$wanif = "ppp";
3916
		break;
3917
	default:
3918
		// If a real interface was alread passed simply
3919
		// pass the real interface back.  This encourages
3920
		// the usage of this function in more cases so that
3921
		// we can combine logic for more flexibility.
3922
		if(does_interface_exist($interface)) {
3923
			$wanif = $interface;
3924
			break;
3925
		}
3926

    
3927
		if (empty($config['interfaces'][$interface]))
3928
			break;
3929

    
3930
		$cfg = &$config['interfaces'][$interface];
3931

    
3932
		if ($family == "inet6") {
3933
			switch ($cfg['ipaddrv6']) {
3934
			case "6rd":
3935
			case "6to4":
3936
				$wanif = "{$interface}_stf";
3937
				break;
3938
			default:
3939
				if( is_array($cfg['wireless']) || preg_match($g['wireless_regex'], $cfg['if']))
3940
					$wanif = interface_get_wireless_clone($cfg['if']);
3941
				else
3942
					$wanif = $cfg['if'];
3943
				break;
3944
			}
3945
		} else {
3946
			// Wireless cloned NIC support (FreeBSD 8+)
3947
			// interface name format: $parentnic_wlanparentnic#
3948
			// example: ath0_wlan0
3949
			if( is_array($cfg['wireless']) || preg_match($g['wireless_regex'], $cfg['if']))
3950
				$wanif = interface_get_wireless_clone($cfg['if']);
3951
			else
3952
				$wanif = $cfg['if'];
3953
		}
3954
		break;
3955
	}
3956

    
3957
	return $wanif;
3958
}
3959

    
3960
/* Guess the physical interface by providing a IP address */
3961
function guess_interface_from_ip($ipaddress) {
3962
	if(! is_ipaddr($ipaddress)) {
3963
		return false;
3964
	}
3965
	if(is_ipaddrv4($ipaddress)) {
3966
		/* create a route table we can search */
3967
		exec("netstat -rnWf inet", $output, $ret);
3968
		foreach($output as $line) {
3969
			if(preg_match("/^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+\/[0-9]+[ ]+link[#]/", $line)) {
3970
				$fields = preg_split("/[ ]+/", $line);
3971
				if(ip_in_subnet($ipaddress, $fields[0])) {
3972
					return $fields[6];
3973
				}
3974
			}
3975
		}
3976
	}
3977
	/* FIXME: This works from cursory testing, regexp might need fine tuning */
3978
	if(is_ipaddrv6($ipaddress)) {
3979
		/* create a route table we can search */
3980
		exec("netstat -rnWf inet6", $output, $ret);
3981
		foreach($output as $line) {
3982
			if(preg_match("/[0-9a-f]+[:]+[0-9a-f]+[:]+[\/][0-9]+/", $line)) {
3983
				$fields = preg_split("/[ ]+/", $line);
3984
				if(ip_in_subnet($ipaddress, $fields[0])) {
3985
					return $fields[6];
3986
				}
3987
			}
3988
		}
3989
	}
3990
	$ret = exec_command("/sbin/route -n get {$ipaddress} | /usr/bin/awk '/interface/ { print \$2; };'");
3991
	if(empty($ret)) {
3992
		return false;
3993
	}
3994
	return $ret;
3995
}
3996

    
3997
/*
3998
 * find_ip_interface($ip): return the interface where an ip is defined
3999
 *   (or if $bits is specified, where an IP within the subnet is defined)
4000
 */
4001
function find_ip_interface($ip, $bits = null) {
4002
	if (!is_ipaddr($ip))
4003
		return false;
4004
	
4005
	$isv6ip = is_ipaddrv6($ip);
4006
	
4007
	/* if list */
4008
	$ifdescrs = get_configured_interface_list();
4009

    
4010
	foreach ($ifdescrs as $ifdescr => $ifname) {
4011
		$ifip = ($isv6ip) ? get_interface_ipv6($ifname) : get_interface_ip($ifname);
4012
		if (is_null($ifip))
4013
			continue;
4014
		if (is_null($bits)) {
4015
			if ($ip == $ifip) {
4016
				$int = get_real_interface($ifname);
4017
				return $int;
4018
			}
4019
		}
4020
		else {
4021
			if (ip_in_subnet($ifip, $ip . "/" . $bits)) {
4022
				$int = get_real_interface($ifname);
4023
				return $int;
4024
			}
4025
		}
4026
	}
4027

    
4028
	return false;
4029
}
4030

    
4031
/*
4032
 * find_virtual_ip_alias($ip): return the virtual IP alias where an IP is found
4033
 *   (or if $bits is specified, where an IP within the subnet is found)
4034
 */
4035
function find_virtual_ip_alias($ip, $bits = null) {
4036
	global $config;
4037
	
4038
	if (!is_array($config['virtualip']['vip'])) {
4039
		return false;
4040
	}
4041
	if (!is_ipaddr($ip))
4042
		return false;
4043
	
4044
	$isv6ip = is_ipaddrv6($ip);
4045
	
4046
	foreach ($config['virtualip']['vip'] as $vip) {
4047
		if ($vip['mode'] === "ipalias") {
4048
			if (is_ipaddrv6($vip['subnet']) != $isv6ip)
4049
				continue;
4050
			if (is_null($bits)) {
4051
				if (ip_in_subnet($ip, $vip['subnet'] . "/" . $vip['subnet_bits'])) {
4052
					return $vip;
4053
				}
4054
			}
4055
			else {
4056
				if (($isv6ip && check_subnetsv6_overlap($ip, $bits, $vip['subnet'], $vip['subnet_bits']))
4057
					|| (!$isv6ip && check_subnets_overlap($ip, $bits, $vip['subnet'], $vip['subnet_bits']))) {
4058
					return $vip;
4059
				}
4060
			}
4061
		}
4062
	}
4063
	return false;
4064
}
4065

    
4066
/*
4067
 *   find_number_of_created_carp_interfaces: return the number of carp interfaces
4068
 */
4069
function find_number_of_created_carp_interfaces() {
4070
	return `/sbin/ifconfig | grep "carp:" | wc -l`;
4071
}
4072

    
4073
function get_all_carp_interfaces() {
4074
	$ints = str_replace("\n", " ", `ifconfig | grep "carp:" -B2 | grep ": flag" | cut -d: -f1`);
4075
	$ints = explode(" ", $ints);
4076
	return $ints;
4077
}
4078

    
4079
/*
4080
 * find_carp_interface($ip): return the carp interface where an ip is defined
4081
 */
4082
function find_carp_interface($ip) {
4083
	global $config;
4084
	if (is_array($config['virtualip']['vip'])) {
4085
		foreach ($config['virtualip']['vip'] as $vip) {
4086
			if ($vip['mode'] == "carp") {
4087
				if(is_ipaddrv4($ip)) {
4088
					$carp_ip = get_interface_ip($vip['interface']);
4089
				}
4090
				if(is_ipaddrv6($ip)) {
4091
					$carp_ip = get_interface_ipv6($vip['interface']);
4092
				}
4093
				exec("/sbin/ifconfig", $output, $return);
4094
				foreach($output as $line) {
4095
					$elements = preg_split("/[ ]+/i", $line);
4096
					if(strstr($elements[0], "vip"))
4097
						$curif = str_replace(":", "", $elements[0]);
4098
					if(stristr($line, $ip)) {
4099
						$if = $curif;
4100
						continue;
4101
					}
4102
				}
4103

    
4104
				if ($if)
4105
					return $if;
4106
			}
4107
		}
4108
	}
4109
}
4110

    
4111
function link_carp_interface_to_parent($interface) {
4112
	global $config;
4113

    
4114
	if ($interface == "")
4115
		return;
4116

    
4117
	$carp_ip = get_interface_ip($interface);
4118
	$carp_ipv6 = get_interface_ipv6($interface);
4119

    
4120
	if((!is_ipaddrv4($carp_ip)) && (!is_ipaddrv6($carp_ipv6)))
4121
		return;
4122

    
4123
	/* if list */
4124
	$ifdescrs = get_configured_interface_list();
4125
	foreach ($ifdescrs as $ifdescr => $ifname) {
4126
		/* check IPv4 */
4127
		if(is_ipaddrv4($carp_ip)) {
4128
			$interfaceip = get_interface_ip($ifname);
4129
			$subnet_bits = get_interface_subnet($ifname);
4130
			$subnet_ip = gen_subnet("{$interfaceip}", "{$subnet_bits}");
4131
			if(ip_in_subnet($carp_ip, "{$subnet_ip}/{$subnet_bits}"))
4132
				return $ifname;
4133
		}
4134
		/* Check IPv6 */
4135
		if(is_ipaddrv6($carp_ipv6)) {
4136
			$interfaceipv6 = get_interface_ipv6($ifname);
4137
			$prefixlen = get_interface_subnetv6($ifname);
4138
			if(ip_in_subnet($carp_ipv6, "{$interfaceipv6}/{$prefixlen}"))
4139
				return $ifname;
4140
		}
4141
	}
4142
	return "";
4143
}
4144

    
4145

    
4146
/****f* interfaces/link_ip_to_carp_interface
4147
 * NAME
4148
 *   link_ip_to_carp_interface - Find where a CARP interface links to.
4149
 * INPUTS
4150
 *   $ip
4151
 * RESULT
4152
 *   $carp_ints
4153
 ******/
4154
function link_ip_to_carp_interface($ip) {
4155
	global $config;
4156

    
4157
	if (!is_ipaddr($ip))
4158
		return;
4159

    
4160
	$carp_ints = "";
4161
	if (is_array($config['virtualip']['vip'])) {
4162
		$first = 0;
4163
		$carp_int = array();
4164
		foreach ($config['virtualip']['vip'] as $vip) {
4165
			if ($vip['mode'] == "carp") {
4166
				$carp_ip = $vip['subnet'];
4167
				$carp_sn = $vip['subnet_bits'];
4168
				$carp_nw = gen_subnet($carp_ip, $carp_sn);
4169
				if (ip_in_subnet($ip, "{$carp_nw}/{$carp_sn}")) {
4170
					$carp_int[] = "{$vip['interface']}_vip{$vip['vhid']}";
4171
				}
4172
			}
4173
		}
4174
		if (!empty($carp_int))
4175
			$carp_ints = implode(" ", array_unique($carp_int));
4176
	}
4177

    
4178
	return $carp_ints;
4179
}
4180

    
4181
function link_interface_to_track6($int, $action = "") {
4182
	global $config;
4183

    
4184
	if (empty($int))
4185
		return;
4186

    
4187
	if (is_array($config['interfaces'])) {
4188
		$list = array();
4189
		foreach ($config['interfaces'] as $ifname => $ifcfg) {
4190
			if (!isset($ifcfg['enable']))
4191
				continue;
4192
			if (!empty($ifcfg['ipaddrv6']) && $ifcfg['track6-interface'] == $int) {
4193
				if ($action == "update")
4194
					interface_track6_configure($ifname, $ifcfg);
4195
				else if ($action == "")
4196
					$list[$ifname] = $ifcfg;
4197
			}
4198
		}
4199
		return $list;
4200
	}
4201
}
4202

    
4203
function link_interface_to_vlans($int, $action = "") {
4204
	global $config;
4205

    
4206
	if (empty($int))
4207
		return;
4208

    
4209
	if (is_array($config['vlans']['vlan'])) {
4210
		$ifaces = array();
4211
		foreach ($config['vlans']['vlan'] as $vlan) {
4212
			if ($int == $vlan['if']) {
4213
				if ($action == "update") {
4214
					interfaces_bring_up($int);
4215
				} else if ($action == "")
4216
					$ifaces[$vlan['tag']] = $vlan;
4217
			}
4218
		}
4219
		if (!empty($ifaces))
4220
			return $ifaces;
4221
	}
4222
}
4223

    
4224
function link_interface_to_vips($int, $action = "") {
4225
	global $config;
4226

    
4227
	if (is_array($config['virtualip']['vip'])) {
4228
		$result = array();
4229
		foreach ($config['virtualip']['vip'] as $vip) {
4230
			if ($int == $vip['interface']) {
4231
				if ($action == "update")
4232
					interfaces_vips_configure($int);
4233
				else
4234
					$result[] = $vip;
4235
			}
4236
		}
4237
		return $result;
4238
	}
4239
}
4240

    
4241
/****f* interfaces/link_interface_to_bridge
4242
 * NAME
4243
 *   link_interface_to_bridge - Finds out a bridge group for an interface
4244
 * INPUTS
4245
 *   $ip
4246
 * RESULT
4247
 *   bridge[0-99]
4248
 ******/
4249
function link_interface_to_bridge($int) {
4250
	global $config;
4251

    
4252
	if (is_array($config['bridges']['bridged'])) {
4253
		foreach ($config['bridges']['bridged'] as $bridge) {
4254
			if (in_array($int, explode(',', $bridge['members'])))
4255
				return "{$bridge['bridgeif']}";
4256
		}
4257
	}
4258
}
4259

    
4260
function link_interface_to_group($int) {
4261
	global $config;
4262

    
4263
	$result = array();
4264

    
4265
	if (is_array($config['ifgroups']['ifgroupentry'])) {
4266
		foreach ($config['ifgroups']['ifgroupentry'] as $group) {
4267
			if (in_array($int, explode(" ", $group['members'])))
4268
				$result[$group['ifname']] = $int;
4269
		}
4270
	}
4271

    
4272
	return $result;
4273
}
4274

    
4275
function link_interface_to_gre($interface) {
4276
	global $config;
4277

    
4278
	$result = array();
4279

    
4280
	if (is_array($config['gres']['gre'])) {
4281
		foreach ($config['gres']['gre'] as $gre)
4282
			if($gre['if'] == $interface)
4283
				$result[] = $gre;
4284
	}
4285

    
4286
	return $result;
4287
}
4288

    
4289
function link_interface_to_gif($interface) {
4290
	global $config;
4291

    
4292
	$result = array();
4293

    
4294
	if (is_array($config['gifs']['gif'])) {
4295
		foreach ($config['gifs']['gif'] as $gif)
4296
			if($gif['if'] == $interface)
4297
				$result[] = $gif;
4298
	}
4299

    
4300
	return $result;
4301
}
4302

    
4303
/*
4304
 * find_interface_ip($interface): return the interface ip (first found)
4305
 */
4306
function find_interface_ip($interface, $flush = false)
4307
{
4308
	global $interface_ip_arr_cache;
4309
	global $interface_sn_arr_cache;
4310

    
4311
	$interface = str_replace("\n", "", $interface);
4312

    
4313
	if (!does_interface_exist($interface))
4314
		return;
4315

    
4316
	/* Setup IP cache */
4317
	if (!isset($interface_ip_arr_cache[$interface]) or $flush) {
4318
		$ifinfo = pfSense_get_interface_addresses($interface);
4319
		$interface_ip_arr_cache[$interface] = $ifinfo['ipaddr'];
4320
		$interface_sn_arr_cache[$interface] = $ifinfo['subnetbits'];
4321
	}
4322

    
4323
	return $interface_ip_arr_cache[$interface];
4324
}
4325

    
4326
/*
4327
 * find_interface_ipv6($interface): return the interface ip (first found)
4328
 */
4329
function find_interface_ipv6($interface, $flush = false)
4330
{
4331
	global $interface_ipv6_arr_cache;
4332
	global $interface_snv6_arr_cache;
4333
	global $config;
4334

    
4335
	$interface = trim($interface);
4336
	$interface = get_real_interface($interface);
4337

    
4338
	if (!does_interface_exist($interface))
4339
		return;
4340

    
4341
	/* Setup IP cache */
4342
	if (!isset($interface_ipv6_arr_cache[$interface]) or $flush) {
4343
		// FIXME: Add IPv6 support to the pfSense module
4344
		$ifinfo = array();
4345
		exec("/sbin/ifconfig {$interface} inet6", $output);
4346
		foreach($output as $line) {
4347
			if(preg_match("/inet6/", $line)) {
4348
				$parts = explode(" ", $line);
4349
				if(! preg_match("/fe80::/", $parts[1])) {
4350
					$ifinfo['ipaddrv6'] = $parts[1];
4351
					if($parts[2] == "-->") {
4352
						$parts[5] = "126";
4353
						$ifinfo['subnetbitsv6'] = $parts[5];
4354
					} else {
4355
						$ifinfo['subnetbitsv6'] = $parts[3];
4356
					}
4357
					break;
4358
				}
4359
			}
4360
		}
4361
		$interface_ipv6_arr_cache[$interface] = $ifinfo['ipaddrv6'];
4362
		$interface_snv6_arr_cache[$interface] = $ifinfo['subnetbitsv6'];
4363
	}
4364

    
4365
	return $interface_ipv6_arr_cache[$interface];
4366
}
4367

    
4368
/*
4369
 * find_interface_ipv6_ll($interface): return the interface ipv6 link local (first found)
4370
 */
4371
function find_interface_ipv6_ll($interface, $flush = false)
4372
{
4373
	global $interface_llv6_arr_cache;
4374
	global $config;
4375

    
4376
	$interface = str_replace("\n", "", $interface);
4377

    
4378
	if (!does_interface_exist($interface))
4379
		return;
4380

    
4381
	/* Setup IP cache */
4382
	if (!isset($interface_llv6_arr_cache[$interface]) or $flush) {
4383
		$ifinfo = pfSense_get_interface_addresses($interface);
4384
		// FIXME: Add IPv6 support to the pfSense module
4385
		exec("/sbin/ifconfig {$interface} inet6", $output);
4386
		foreach($output as $line) {
4387
			if(preg_match("/inet6/", $line)) {
4388
				$parts = explode(" ", $line);
4389
				if(preg_match("/fe80::/", $parts[1])) {
4390
					$partsaddress = explode("%", $parts[1]);
4391
					$ifinfo['linklocal'] = $partsaddress[0];
4392
				}
4393
			}
4394
		}
4395
		$interface_llv6_arr_cache[$interface] = $ifinfo['linklocal'];
4396
	}
4397
	return $interface_llv6_arr_cache[$interface];
4398
}
4399

    
4400
function find_interface_subnet($interface, $flush = false)
4401
{
4402
	global $interface_sn_arr_cache;
4403
	global $interface_ip_arr_cache;
4404

    
4405
	$interface = str_replace("\n", "", $interface);
4406
	if (does_interface_exist($interface) == false)
4407
		return;
4408

    
4409
	if (!isset($interface_sn_arr_cache[$interface]) or $flush) {
4410
		$ifinfo = pfSense_get_interface_addresses($interface);
4411
		$interface_ip_arr_cache[$interface] = $ifinfo['ipaddr'];
4412
		$interface_sn_arr_cache[$interface] = $ifinfo['subnetbits'];
4413
	}
4414

    
4415
	return $interface_sn_arr_cache[$interface];
4416
}
4417

    
4418
function find_interface_subnetv6($interface, $flush = false)
4419
{
4420
	global $interface_snv6_arr_cache;
4421
	global $interface_ipv6_arr_cache;
4422

    
4423
	$interface = str_replace("\n", "", $interface);
4424
	if (does_interface_exist($interface) == false)
4425
		return;
4426

    
4427
	$foundv6 = false;
4428
	if (!isset($interface_snv6_arr_cache[$interface]) or $flush) {
4429
		$ifinfo = array();
4430
		// FIXME: Add IPv6 support to the pfSense module
4431
		unset($output);
4432
		exec("/sbin/ifconfig {$interface} inet6", $output);
4433
		foreach($output as $line) {
4434
			$line = trim($line);
4435
			if(preg_match("/inet6/", $line)) {
4436
				$parts = explode(" ", $line);
4437
				if(! preg_match("/fe80::/", $parts[1])) {
4438
					$ifinfo['ipaddrv6'] = $parts[1];
4439
					if($parts[2] == "-->") {
4440
						$parts[5] = "126";
4441
						$ifinfo['subnetbitsv6'] = $parts[5];
4442
					} else {
4443
						$ifinfo['subnetbitsv6'] = $parts[3];
4444
					}
4445
					$foundv6 = true;
4446
					break;
4447
				}
4448
			}
4449
		}
4450
		if ($foundv6 === true) {
4451
			$interface_ipv6_arr_cache[$interface] = $ifinfo['ipaddrv6'];
4452
			$interface_snv6_arr_cache[$interface] = $ifinfo['subnetbitsv6'];
4453
		} else
4454
			unset($interface_ipv6_arr_cache[$interface], $interface_snv6_arr_cache[$interface]);
4455
	}
4456

    
4457
	return $interface_snv6_arr_cache[$interface];
4458
}
4459

    
4460
function ip_in_interface_alias_subnet($interface, $ipalias) {
4461
	global $config;
4462

    
4463
	if (empty($interface) || !is_ipaddr($ipalias))
4464
		return false;
4465
	if (is_array($config['virtualip']['vip'])) {
4466
		foreach ($config['virtualip']['vip'] as $vip) {
4467
			switch ($vip['mode']) {
4468
			case "ipalias":
4469
				if ($vip['interface'] <> $interface)
4470
					break;
4471
				if (ip_in_subnet($ipalias, gen_subnet($vip['subnet'], $vip['subnet_bits']) . "/" . $vip['subnet_bits']))
4472
					return true;
4473
				break;
4474
			}
4475
		}
4476
	}
4477

    
4478
	return false;
4479
}
4480

    
4481
function get_interface_ip($interface = "wan")
4482
{
4483
	$realif = get_failover_interface($interface);
4484
	if (!$realif) {
4485
		if (preg_match("/^carp/i", $interface))
4486
			$realif = $interface;
4487
		else if (preg_match("/^[a-z0-9]+_vip/i", $interface))
4488
			$realif = $interface;
4489
		else
4490
			return null;
4491
	}
4492

    
4493
	$curip = find_interface_ip($realif);
4494
	if ($curip && is_ipaddr($curip) && ($curip != "0.0.0.0"))
4495
		return $curip;
4496
	else
4497
		return null;
4498
}
4499

    
4500
function get_interface_ipv6($interface = "wan", $flush = false)
4501
{
4502
	global $config;
4503

    
4504
	$realif = get_failover_interface($interface, "inet6");
4505
	if (!$realif) {
4506
		if (preg_match("/^[a-z0-9]+_vip/i", $interface))
4507
			$realif = $interface;
4508
		else
4509
			return null;
4510
	}
4511

    
4512
	$curip = find_interface_ipv6($realif, $flush);
4513
	if ($curip && is_ipaddrv6($curip) && ($curip != "::"))
4514
		return $curip;
4515
	else
4516
		return null;
4517
}
4518

    
4519
function get_interface_linklocal($interface = "wan")
4520
{
4521
	$realif = get_failover_interface($interface);
4522
	if (!$realif) {
4523
		if (preg_match("/^carp/i", $interface))
4524
			$realif = $interface;
4525
		else if (preg_match("/^[a-z0-9]+_vip/i", $interface))
4526
			$realif = $interface;
4527
		else
4528
			return null;
4529
	}
4530

    
4531
	$curip = find_interface_ipv6_ll($realif);
4532
	if ($curip && is_ipaddrv6($curip) && ($curip != "::"))
4533
		return $curip;
4534
	else
4535
		return null;
4536
}
4537

    
4538
function get_interface_subnet($interface = "wan")
4539
{
4540
	$realif = get_real_interface($interface);
4541
	if (!$realif) {
4542
		if (preg_match("/^carp/i", $interface))
4543
			$realif = $interface;
4544
		else if (preg_match("/^[a-z0-9]+_vip/i", $interface))
4545
			$realif = $interface;
4546
		else
4547
			return null;
4548
	}
4549

    
4550
	$cursn = find_interface_subnet($realif);
4551
	if (!empty($cursn))
4552
		return $cursn;
4553

    
4554
	return null;
4555
}
4556

    
4557
function get_interface_subnetv6($interface = "wan")
4558
{
4559
	global $config;
4560

    
4561
	$realif = get_real_interface($interface, "inet6");
4562
	if (!$realif) {
4563
		if (preg_match("/^[a-z0-9]+_vip/i", $interface))
4564
			$realif = $interface;
4565
		else
4566
			return null;
4567
	}
4568

    
4569
	$cursn = find_interface_subnetv6($realif);
4570
	if (!empty($cursn))
4571
		return $cursn;
4572

    
4573
	return null;
4574
}
4575

    
4576
/* return outside interfaces with a gateway */
4577
function get_interfaces_with_gateway() {
4578
	global $config;
4579

    
4580
	$ints = array();
4581

    
4582
	/* loop interfaces, check config for outbound */
4583
	foreach($config['interfaces'] as $ifdescr => $ifname) {
4584
		switch ($ifname['ipaddr']) {
4585
			case "dhcp":
4586
			case "ppp";
4587
			case "pppoe":
4588
			case "pptp":
4589
			case "l2tp":
4590
			case "ppp";
4591
				$ints[$ifdescr] = $ifdescr;
4592
			break;
4593
			default:
4594
				if (substr($ifname['if'], 0, 4) ==  "ovpn" ||
4595
				    !empty($ifname['gateway']))
4596
					$ints[$ifdescr] = $ifdescr;
4597
			break;
4598
		}
4599
	}
4600
	return $ints;
4601
}
4602

    
4603
/* return true if interface has a gateway */
4604
function interface_has_gateway($friendly) {
4605
	global $config;
4606

    
4607
	if (!empty($config['interfaces'][$friendly])) {
4608
		$ifname = &$config['interfaces'][$friendly];
4609
		switch ($ifname['ipaddr']) {
4610
			case "dhcp":
4611
			case "pppoe":
4612
			case "pptp":
4613
			case "l2tp":
4614
			case "ppp";
4615
				return true;
4616
			break;
4617
			default:
4618
				if (substr($ifname['if'], 0, 4) ==  "ovpn")
4619
					return true;
4620
				if (!empty($ifname['gateway']))
4621
					return true;
4622
			break;
4623
		}
4624
	}
4625

    
4626
	return false;
4627
}
4628

    
4629
/* return true if interface has a gateway */
4630
function interface_has_gatewayv6($friendly) {
4631
	global $config;
4632

    
4633
	if (!empty($config['interfaces'][$friendly])) {
4634
		$ifname = &$config['interfaces'][$friendly];
4635
		switch ($ifname['ipaddrv6']) {
4636
			case "slaac":
4637
			case "dhcp6":
4638
			case "6to4":
4639
			case "6rd":
4640
				return true;
4641
				break;
4642
			default:
4643
				if (substr($ifname['if'], 0, 4) ==  "ovpn")
4644
					return true;
4645
				if (!empty($ifname['gatewayv6']))
4646
					return true;
4647
				break;
4648
		}
4649
	}
4650

    
4651
	return false;
4652
}
4653

    
4654
/****f* interfaces/is_altq_capable
4655
 * NAME
4656
 *   is_altq_capable - Test if interface is capable of using ALTQ
4657
 * INPUTS
4658
 *   $int            - string containing interface name
4659
 * RESULT
4660
 *   boolean         - true or false
4661
 ******/
4662

    
4663
function is_altq_capable($int) {
4664
	/* Per:
4665
	 * http://www.freebsd.org/cgi/man.cgi?query=altq&manpath=FreeBSD+7.2-current&format=html
4666
	 * Only the following drivers have ALTQ support
4667
	 */
4668
	$capable = array("age", "alc", "ale", "an", "ath", "aue", "awi", "bce",
4669
			"bfe", "bge", "bridge", "cas", "dc", "de", "ed", "em", "ep", "fxp", "gem",
4670
			"hme", "igb", "ipw", "iwi", "jme", "le", "lem", "msk", "mxge", "my", "nfe",
4671
			"npe", "nve", "ral", "re", "rl", "rum", "run", "bwn", "sf", "sis", "sk",
4672
			"ste", "stge", "txp", "udav", "ural", "vge", "vr", "wi", "xl",
4673
			"ndis", "tun", "ovpns", "ovpnc", "vlan", "pppoe", "pptp", "ng",
4674
			"l2tp", "ppp", "vtnet");
4675

    
4676
	$int_family = remove_ifindex($int);
4677

    
4678
	if (in_array($int_family, $capable))
4679
		return true;
4680
	else if (stristr($int, "l2tp")) /* VLANs are name $parent_$vlan now */
4681
		return true;
4682
	else if (stristr($int, "_vlan")) /* VLANs are name $parent_$vlan now */
4683
		return true;
4684
	else if (stristr($int, "_wlan")) /* WLANs are name $parent_$wlan now */
4685
		return true;
4686
	else
4687
		return false;
4688
}
4689

    
4690
/****f* interfaces/is_interface_wireless
4691
 * NAME
4692
 *   is_interface_wireless - Returns if an interface is wireless
4693
 * RESULT
4694
 *   $tmp       - Returns if an interface is wireless
4695
 ******/
4696
function is_interface_wireless($interface) {
4697
	global $config, $g;
4698

    
4699
	$friendly = convert_real_interface_to_friendly_interface_name($interface);
4700
	if(!isset($config['interfaces'][$friendly]['wireless'])) {
4701
		if (preg_match($g['wireless_regex'], $interface)) {
4702
			if (isset($config['interfaces'][$friendly]))
4703
				$config['interfaces'][$friendly]['wireless'] = array();
4704
			return true;
4705
		}
4706
		return false;
4707
	} else
4708
		return true;
4709
}
4710

    
4711
function get_wireless_modes($interface) {
4712
	/* return wireless modes and channels */
4713
	$wireless_modes = array();
4714

    
4715
	$cloned_interface = get_real_interface($interface);
4716

    
4717
	if($cloned_interface && is_interface_wireless($cloned_interface)) {
4718
		$chan_list = "/sbin/ifconfig {$cloned_interface} list chan";
4719
		$stack_list = "/usr/bin/awk -F\"Channel \" '{ gsub(/\\*/, \" \"); print \$2 \"\\\n\" \$3 }'";
4720
		$format_list = "/usr/bin/awk '{print \$5 \" \" \$6 \",\" \$1}'";
4721

    
4722
		$interface_channels = "";
4723
		exec("$chan_list | $stack_list | sort -u | $format_list 2>&1", $interface_channels);
4724
		$interface_channel_count = count($interface_channels);
4725

    
4726
		$c = 0;
4727
		while ($c < $interface_channel_count)
4728
		{
4729
			$channel_line = explode(",", $interface_channels["$c"]);
4730
			$wireless_mode = trim($channel_line[0]);
4731
			$wireless_channel = trim($channel_line[1]);
4732
			if(trim($wireless_mode) != "") {
4733
				/* if we only have 11g also set 11b channels */
4734
				if($wireless_mode == "11g") {
4735
					if(!isset($wireless_modes["11b"]))
4736
						$wireless_modes["11b"] = array();
4737
				} else if($wireless_mode == "11g ht") {
4738
					if(!isset($wireless_modes["11b"]))
4739
						$wireless_modes["11b"] = array();
4740
					if(!isset($wireless_modes["11g"]))
4741
						$wireless_modes["11g"] = array();
4742
					$wireless_mode = "11ng";
4743
				} else if($wireless_mode == "11a ht") {
4744
					if(!isset($wireless_modes["11a"]))
4745
						$wireless_modes["11a"] = array();
4746
					$wireless_mode = "11na";
4747
				}
4748
				$wireless_modes["$wireless_mode"]["$c"] = $wireless_channel;
4749
			}
4750
			$c++;
4751
		}
4752
	}
4753
	return($wireless_modes);
4754
}
4755

    
4756
/* return channel numbers, frequency, max txpower, and max regulation txpower */
4757
function get_wireless_channel_info($interface) {
4758
	$wireless_channels = array();
4759

    
4760
	$cloned_interface = get_real_interface($interface);
4761

    
4762
	if($cloned_interface && is_interface_wireless($cloned_interface)) {
4763
		$chan_list = "/sbin/ifconfig {$cloned_interface} list txpower";
4764
		$stack_list = "/usr/bin/awk -F\"Channel \" '{ gsub(/\\*/, \" \"); print \$2 \"\\\n\" \$3 }'";
4765
		$format_list = "/usr/bin/awk '{print \$1 \",\" \$3 \" \" \$4 \",\" \$5 \",\" \$7}'";
4766

    
4767
		$interface_channels = "";
4768
		exec("$chan_list | $stack_list | sort -u | $format_list 2>&1", $interface_channels);
4769

    
4770
		foreach ($interface_channels as $channel_line) {
4771
			$channel_line = explode(",", $channel_line);
4772
			if(!isset($wireless_channels[$channel_line[0]]))
4773
				$wireless_channels[$channel_line[0]] = $channel_line;
4774
		}
4775
	}
4776
	return($wireless_channels);
4777
}
4778

    
4779
/****f* interfaces/get_interface_mtu
4780
 * NAME
4781
 *   get_interface_mtu - Return the mtu of an interface
4782
 * RESULT
4783
 *   $tmp       - Returns the mtu of an interface
4784
 ******/
4785
function get_interface_mtu($interface) {
4786
	$mtu = pfSense_get_interface_addresses($interface);
4787
	return $mtu['mtu'];
4788
}
4789

    
4790
function get_interface_mac($interface) {
4791

    
4792
	$macinfo = pfSense_get_interface_addresses($interface);
4793
	return $macinfo["macaddr"];
4794
}
4795

    
4796
/****f* pfsense-utils/generate_random_mac_address
4797
 * NAME
4798
 *   generate_random_mac - generates a random mac address
4799
 * INPUTS
4800
 *   none
4801
 * RESULT
4802
 *   $mac - a random mac address
4803
 ******/
4804
function generate_random_mac_address() {
4805
	$mac = "02";
4806
	for($x=0; $x<5; $x++)
4807
		$mac .= ":" . dechex(rand(16, 255));
4808
	return $mac;
4809
}
4810

    
4811
/****f* interfaces/is_jumbo_capable
4812
 * NAME
4813
 *   is_jumbo_capable - Test if interface is jumbo frame capable.  Useful for determining VLAN capability.
4814
 * INPUTS
4815
 *   $int             - string containing interface name
4816
 * RESULT
4817
 *   boolean          - true or false
4818
 ******/
4819
function is_jumbo_capable($iface) {
4820
	$iface = trim($iface);
4821
	$capable = pfSense_get_interface_addresses($iface);
4822

    
4823
	if (isset($capable['caps']['vlanmtu']))
4824
		return true;
4825

    
4826
	return false;
4827
}
4828

    
4829
function interface_setup_pppoe_reset_file($pppif, $iface="") {
4830
	global $g;
4831

    
4832
	$cron_file = "{$g['varetc_path']}/pppoe_restart_{$pppif}";
4833

    
4834
	if(!empty($iface) && !empty($pppif)){
4835
		$cron_cmd = <<<EOD
4836
#!/bin/sh
4837
/usr/local/sbin/pfSctl -c 'interface reload {$iface}'
4838
/usr/bin/logger -t {$pppif} "PPPoE periodic reset executed on {$iface}"
4839

    
4840
EOD;
4841

    
4842
		@file_put_contents($cron_file, $cron_cmd);
4843
		chmod($cron_file, 0755);
4844
		sigkillbypid("{$g['varrun_path']}/cron.pid", "HUP");
4845
	} else
4846
		unlink_if_exists($cron_file);
4847
}
4848

    
4849
function get_interface_default_mtu($type = "ethernet") {
4850
	switch ($type) {
4851
	case "gre":
4852
		return 1476;
4853
		break;
4854
	case "gif":
4855
		return 1280;
4856
		break;
4857
	case "tun":
4858
	case "vlan":
4859
	case "tap":
4860
	case "ethernet":
4861
	default:
4862
		return 1500;
4863
		break;
4864
	}
4865

    
4866
	/* Never reached */
4867
	return 1500;
4868
}
4869

    
4870
function get_vip_descr($ipaddress) {
4871
	global $config;
4872

    
4873
	foreach ($config['virtualip']['vip'] as $vip) {
4874
		if ($vip['subnet'] == $ipaddress) {
4875
			return ($vip['descr']);
4876
		}
4877
	}
4878
	return "";
4879
}
4880

    
4881
function interfaces_staticarp_configure($if) {
4882
	global $config, $g;
4883
	if(isset($config['system']['developerspew'])) {
4884
		$mt = microtime();
4885
		echo "interfaces_staticarp_configure($if) being called $mt\n";
4886
	}
4887

    
4888
	$ifcfg = $config['interfaces'][$if];
4889

    
4890
	if (empty($if) || empty($ifcfg['if']) || !isset($ifcfg['enable']))
4891
		return 0;
4892

    
4893
	/* Enable staticarp, if enabled */
4894
	if(isset($config['dhcpd'][$if]['staticarp'])) {
4895
		mwexec("/sbin/ifconfig " . escapeshellarg($ifcfg['if']) . " staticarp " );
4896
		mwexec("/usr/sbin/arp -d -i " . escapeshellarg($ifcfg['if']) . " -a > /dev/null 2>&1 ");
4897
		if (is_array($config['dhcpd'][$if]['staticmap'])) {
4898

    
4899
			foreach ($config['dhcpd'][$if]['staticmap'] as $arpent) {
4900
				mwexec("/usr/sbin/arp -s " . escapeshellarg($arpent['ipaddr']) . " " . escapeshellarg($arpent['mac']));
4901

    
4902
			}
4903

    
4904
		}
4905
	} else {
4906
		mwexec("/sbin/ifconfig " . escapeshellarg($ifcfg['if']) . " -staticarp " );
4907
		mwexec("/usr/sbin/arp -d -i " . escapeshellarg($ifcfg['if']) . " -a > /dev/null 2>&1 ");
4908
		if (is_array($config['dhcpd'][$if]['staticmap'])) {
4909
			foreach ($config['dhcpd'][$if]['staticmap'] as $arpent) {
4910
				if (isset($arpent['arp_table_static_entry'])) {
4911
					mwexec("/usr/sbin/arp -s " . escapeshellarg($arpent['ipaddr']) . " " . escapeshellarg($arpent['mac']));
4912
				}
4913
			}
4914
		}
4915
	}
4916

    
4917
	return 0;
4918
}
4919

    
4920
function get_failover_interface($interface, $family = "all") {
4921
	global $config;
4922
	/* shortcut to get_real_interface if we find it in the config */
4923
	if(is_array($config['interfaces'][$interface])) {
4924
		$wanif = get_real_interface($interface, $family);
4925
		return $wanif;
4926
	}
4927

    
4928
	/* compare against gateway groups */
4929
	$a_groups = return_gateway_groups_array();
4930
	if(is_array($a_groups[$interface])) {
4931
		/* we found a gateway group, fetch the interface or vip */
4932
		if($a_groups[$interface][0]['vip'] <> "")
4933
			$wanif = $a_groups[$interface][0]['vip'];
4934
		else
4935
			$wanif = $a_groups[$interface][0]['int'];
4936

    
4937
		return $wanif;
4938
	}
4939
	/* fall through to get_real_interface */
4940
	$wanif = get_real_interface($interface, $family);
4941
	return $wanif;
4942
}
4943

    
4944
function remove_ifindex($ifname) {
4945
	return preg_replace("/[0-9]+$/", "", $ifname);
4946
}
4947

    
4948
?>
(25-25/66)