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

    
2699
	return intval($pid);
2700
}
2701

    
2702
function interface_vlan_mtu_configured($realhwif, $mtu) {
2703
	global $config;
2704

    
2705
	if (is_array($config['vlans']['vlan'])) {
2706
		foreach ($config['vlans']['vlan'] as $vlan) {
2707
			if ($vlan['if'] != $realhwif)
2708
				continue;
2709
			$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
2710
			if (!empty($assignedport)) {
2711
				$portmtu = $config['interfaces'][$assignedport]['mtu'];
2712
				if (!empty($portmtu) && $portmtu > $mtu)
2713
					$mtu = $portmtu;
2714
			}
2715
		}
2716
	}
2717

    
2718
	return $mtu;
2719
}
2720

    
2721
function interface_configure($interface = "wan", $reloadall = false, $linkupevent = false) {
2722
	global $config, $g;
2723
	global $interface_sn_arr_cache, $interface_ip_arr_cache;
2724
	global $interface_snv6_arr_cache, $interface_ipv6_arr_cache;
2725

    
2726
	$wancfg = $config['interfaces'][$interface];
2727

    
2728
	if (!isset($wancfg['enable']))
2729
		return;
2730

    
2731
	$realif = get_real_interface($interface);
2732
	$realhwif_array = get_parent_interface($interface);
2733
	// Need code to handle MLPPP if we ever use $realhwif for MLPPP handling
2734
	$realhwif = $realhwif_array[0];
2735

    
2736
	/* Disable Accepting router advertisements unless specifically requested */
2737
	if ($g['debug'])
2738
		log_error("Deny router advertisements for interface {$interface}");
2739
	mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " inet6 -accept_rtadv");
2740

    
2741
	if (!$g['booting'] && !(substr($realif, 0, 4) == "ovpn")) {
2742
		/* remove all IPv4 and IPv6 addresses */
2743
		while (mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " -alias", true) == 0);
2744
		while (mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " inet6 -alias", true) == 0);
2745

    
2746
		/* only bring down the interface when both v4 and v6 are set to NONE */
2747
		if(empty($wancfg['ipaddr']) && empty($wancfg['ipaddrv6'])) {
2748
			interface_bring_down($interface);
2749
		}
2750
	}
2751

    
2752
	/* wireless configuration? */
2753
	if (is_array($wancfg['wireless']))
2754
		interface_wireless_configure($realif, $wancfg, $wancfg['wireless']);
2755

    
2756
	$mac = get_interface_mac($realhwif);
2757
	/*
2758
	 * Don't try to reapply the spoofed MAC if it's already applied.
2759
	 * When ifconfig link is used, it cycles the interface down/up, which triggers
2760
	 * the interface config again, which attempts to spoof the MAC again,
2761
	 * which cycles the link again...
2762
	 */
2763
	if ($wancfg['spoofmac'] && ($wancfg['spoofmac'] != $mac)) {
2764
		mwexec("/sbin/ifconfig " . escapeshellarg($realhwif) .
2765
			" link " . escapeshellarg($wancfg['spoofmac']));
2766

    
2767
		/*
2768
		 * All vlans need to spoof their parent mac address, too.  see
2769
		 * ticket #1514: http://cvstrac.pfsense.com/tktview?tn=1514,33
2770
		 */
2771
		if (is_array($config['vlans']['vlan'])) {
2772
			foreach ($config['vlans']['vlan'] as $vlan) {
2773
				if ($vlan['if'] == $realhwif)
2774
					mwexec("/sbin/ifconfig " . escapeshellarg($vlan['vlanif']) .
2775
					" link " . escapeshellarg($wancfg['spoofmac']));
2776
			}
2777
		}
2778
	}  else {
2779

    
2780
		if ($mac == "ff:ff:ff:ff:ff:ff") {
2781
			/*   this is not a valid mac address.  generate a
2782
			 *   temporary mac address so the machine can get online.
2783
			 */
2784
			echo gettext("Generating new MAC address.");
2785
			$random_mac = generate_random_mac_address();
2786
			mwexec("/sbin/ifconfig " . escapeshellarg($realhwif) .
2787
				" link " . escapeshellarg($random_mac));
2788
			$wancfg['spoofmac'] = $random_mac;
2789
			write_config();
2790
			file_notice("MAC Address altered", sprintf(gettext('The INVALID MAC address (ff:ff:ff:ff:ff:ff) on interface %1$s has been automatically replaced with %2$s'), $realif, $random_mac), "Interfaces");
2791
		}
2792
	}
2793

    
2794
	/* media */
2795
	if ($wancfg['media'] || $wancfg['mediaopt']) {
2796
		$cmd = "/sbin/ifconfig " . escapeshellarg($realhwif);
2797
		if ($wancfg['media'])
2798
			$cmd .= " media " . escapeshellarg($wancfg['media']);
2799
		if ($wancfg['mediaopt'])
2800
			$cmd .= " mediaopt " . escapeshellarg($wancfg['mediaopt']);
2801
		mwexec($cmd);
2802
	}
2803
	$options = pfSense_get_interface_addresses($realhwif);
2804
	if (is_array($options) && isset($options['caps']['polling'])) {
2805
		if (isset($config['system']['polling']))
2806
			pfSense_interface_capabilities($realif, IFCAP_POLLING);
2807
		else
2808
			pfSense_interface_capabilities($realif, -IFCAP_POLLING);
2809
	}
2810

    
2811
	/* skip vlans for checksumming and polling */
2812
	if (!stristr($realif, "_vlan") && is_array($options)) {
2813
		$flags = 0;
2814
		if(isset($config['system']['disablechecksumoffloading'])) {
2815
			if (isset($options['encaps']['txcsum']))
2816
				$flags |= IFCAP_TXCSUM;
2817
			if (isset($options['encaps']['rxcsum']))
2818
				$flags |= IFCAP_RXCSUM;
2819
		} else {
2820
			if (!isset($options['caps']['txcsum']))
2821
				$flags |= IFCAP_TXCSUM;
2822
			if (!isset($options['caps']['rxcsum']))
2823
				$flags |= IFCAP_RXCSUM;
2824
		}
2825

    
2826
		if(isset($config['system']['disablesegmentationoffloading'])) {
2827
			if (isset($options['encaps']['tso4']))
2828
				$flags |= IFCAP_TSO;
2829
			if (isset($options['encaps']['tso6']))
2830
				$flags |= IFCAP_TSO;
2831
		} else {
2832
			if (!isset($options['caps']['tso4']))
2833
				$flags |= IFCAP_TSO;
2834
			if (!isset($options['caps']['tso6']))
2835
				$flags |= IFCAP_TSO;
2836
		}
2837

    
2838
		if(isset($config['system']['disablelargereceiveoffloading'])) {
2839
			if (isset($options['encaps']['lro']))
2840
				$flags |= IFCAP_LRO;
2841
		} else {
2842
			if (!isset($options['caps']['lro']))
2843
				$flags |= IFCAP_LRO;
2844
		}
2845

    
2846
		/* if the NIC supports polling *AND* it is enabled in the GUI */
2847
		if (!isset($config['system']['polling']) || !isset($options['caps']['polling'])) {
2848
			$flags |= IFCAP_POLLING;
2849
		}
2850
		pfSense_interface_capabilities($realhwif, -$flags);
2851
	}
2852

    
2853
	/* invalidate interface/ip/sn cache */
2854
	get_interface_arr(true);
2855
	unset($interface_ip_arr_cache[$realif]);
2856
	unset($interface_sn_arr_cache[$realif]);
2857
	unset($interface_ipv6_arr_cache[$realif]);
2858
	unset($interface_snv6_arr_cache[$realif]);
2859

    
2860
	switch ($wancfg['ipaddr']) {
2861
		case 'dhcp':
2862
			interface_dhcp_configure($interface);
2863
			break;
2864
		case 'pppoe':
2865
		case 'l2tp':
2866
		case 'pptp':
2867
		case 'ppp':
2868
			interface_ppps_configure($interface);
2869
			break;
2870
		default:
2871
			if (is_ipaddr($wancfg['ipaddr']) && $wancfg['subnet'] <> "") {
2872
				pfSense_interface_setaddress($realif, "{$wancfg['ipaddr']}/{$wancfg['subnet']}");
2873
			} else if (substr($realif, 0, 3) == "gre") {
2874
				if (is_array($config['gres']['gre'])) {
2875
					foreach ($config['gres']['gre'] as $gre)
2876
						if ($gre['greif'] == $realif)
2877
							interface_gre_configure($gre);
2878
				}
2879
			} else if (substr($realif, 0, 3) == "gif") {
2880
				if (is_array($config['gifs']['gif'])) {
2881
					foreach ($config['gifs']['gif'] as $gif)
2882
						if($gif['gifif'] == $realif)
2883
							interface_gif_configure($gif);
2884
				}
2885
			} else if (substr($realif, 0, 4) == "ovpn") {
2886
				/* XXX: Should be done anything?! */
2887
			}
2888
			break;
2889
	}
2890

    
2891
	switch ($wancfg['ipaddrv6']) {
2892
		case 'slaac':
2893
		case 'dhcp6':
2894
			interface_dhcpv6_configure($interface, $wancfg);
2895
			break;
2896
		case '6rd':
2897
			interface_6rd_configure($interface, $wancfg);
2898
			break;
2899
		case '6to4':
2900
			interface_6to4_configure($interface, $wancfg);
2901
			break;
2902
		case 'track6':
2903
			interface_track6_configure($interface, $wancfg);
2904
			break;
2905
		default:
2906
			if (is_ipaddr($wancfg['ipaddrv6']) && $wancfg['subnetv6'] <> "") {
2907
				pfSense_interface_setaddress($realif, "{$wancfg['ipaddrv6']}/{$wancfg['subnetv6']}");
2908
				// FIXME: Add IPv6 Support to the pfSense module
2909
				mwexec("/sbin/ifconfig {$realif} inet6 {$wancfg['ipaddrv6']} prefixlen {$wancfg['subnetv6']} ");
2910
			}
2911
			break;
2912
	}
2913

    
2914
	$mtu = get_interface_default_mtu(remove_ifindex($realhwif));
2915
	$assignedparent = convert_real_interface_to_friendly_interface_name($realhwif);
2916
	if (!empty($assignedparent) && !empty($config['interfaces'][$assignedparent]['mtu']))
2917
		$mtu = $config['interfaces'][$assignedparent]['mtu'];
2918

    
2919
	$vlanifs = link_interface_to_vlans($realhwif);
2920
	if (empty($vlanifs))
2921
		$vlanifs = array();
2922

    
2923
	if (!empty($wancfg['mtu'])) {
2924
		if (stristr($realif, "_vlan")) {
2925
			if (!empty($assignedparent)) {
2926
				$parentmtu = $config['interfaces'][$assignedparent]['mtu'];
2927
				if (empty($parentmtu))
2928
					$parentmtu = interface_vlan_mtu_configured($realhwif, $wancfg['mtu']);
2929
				if ($wancfg['mtu'] > $parentmtu) {
2930
					if (get_interface_mtu($realhwif) != $wancfg['mtu'])
2931
						pfSense_interface_mtu($realhwif, $wancfg['mtu']);
2932

    
2933
					/* All vlans need to use the same mtu value as their parent. */
2934
					foreach ($vlanifs as $vlan) {
2935
						if ($vlan['vlanif'] == $realif)
2936
							continue;
2937
						$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
2938
						if (!empty($assignedport)) {
2939
							$portmtu = $config['interfaces'][$assignedport]['mtu'];
2940
							if (empty($portmtu) && (get_interface_mtu($vlan['vlanif']) != $wancfg['mtu']))
2941
								pfSense_interface_mtu($vlan['vlanif'], $wancfg['mtu']);
2942
						} else if (get_interface_mtu($vlan['vlanif']) != $wancfg['mtu'])
2943
							pfSense_interface_mtu($vlan['vlanif'], $wancfg['mtu']);
2944
					}
2945
				}
2946
			} else {
2947
				/* Parent is not assigned, back to default */
2948
				if (get_interface_mtu($realhwif) != $mtu)
2949
					pfSense_interface_mtu($realhwif, $mtu);
2950

    
2951
				/* All vlans need to use the same mtu value as their parent. */
2952
				foreach ($vlanifs as $vlan) {
2953
					if ($vlan['vlanif'] == $realif)
2954
						continue;
2955
					$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
2956
					if (!empty($assignedport)) {
2957
						$portmtu = $config['interfaces'][$assignedport]['mtu'];
2958
						if (empty($portmtu) && (get_interface_mtu($vlan['vlanif']) != $mtu))
2959
							pfSense_interface_mtu($vlan['vlanif'], $mtu);
2960
					} else if (get_interface_mtu($vlan['vlanif']) != $mtu)
2961
						pfSense_interface_mtu($vlan['vlanif'], $mtu);
2962
				}
2963

    
2964
				if (get_interface_mtu($realif) != $wancfg['mtu'])
2965
					pfSense_interface_mtu($realif, $wancfg['mtu']);
2966
			}
2967
		} else {
2968
			foreach ($vlanifs as $vlan) {
2969
				$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
2970
				if (empty($assignedport)) {
2971
					if (get_interface_mtu($vlan['vlanif']) != $wancfg['mtu'])
2972
						pfSense_interface_mtu($vlan['vlanif'], $wancfg['mtu']);
2973
				} else {
2974
					$vlanmtu = $config['interfaces'][$assignedport]['mtu'];
2975
					if ((empty($vlanmtu) || ($vlanmtu >= $wancfg['mtu'])) && (get_interface_mtu($vlan['vlanif']) != $wancfg['mtu']))
2976
						pfSense_interface_mtu($vlan['vlanif'], $wancfg['mtu']);
2977
				}
2978
			}
2979
		}
2980
		if ($wancfg['mtu'] != get_interface_mtu($realif))
2981
			pfSense_interface_mtu($realif, $wancfg['mtu']);
2982
	} else if (stristr($realif, "_vlan")) {
2983
		/* XXX: This is really dangerous for example with vlans changing their parent mtu! */
2984
		$bigmtu = interface_vlan_mtu_configured($realhwif, $mtu);
2985
		if ($mtu < $bigmtu)
2986
			$mtu = $bigmtu;
2987

    
2988
		if (get_interface_mtu($realhwif) != $mtu)
2989
			pfSense_interface_mtu($realhwif, $mtu);
2990

    
2991
		/* All vlans need to use the same mtu value as their parent. */
2992
		foreach ($vlanifs as $vlan) {
2993
			if ($vlan['vlanif'] == $realif)
2994
				continue;
2995
			$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
2996
			if (!empty($assignedport)) {
2997
				$portmtu = $config['interfaces'][$assignedport]['mtu'];
2998
				if (empty($portmtu) && (get_interface_mtu($vlan['vlanif']) != $mtu))
2999
					pfSense_interface_mtu($vlan['vlanif'], $mtu);
3000
			} else if (get_interface_mtu($vlan['vlanif']) != $mtu)
3001
				pfSense_interface_mtu($vlan['vlanif'], $mtu);
3002
		}
3003
		if (get_interface_mtu($realif) != $mtu)
3004
			pfSense_interface_mtu($realif, $mtu);
3005
	} else {
3006
		/* All vlans need to use the same mtu value as their parent. */
3007
		foreach ($vlanifs as $vlan) {
3008
			$assignedport = convert_real_interface_to_friendly_interface_name($vlan['vlanif']);
3009
			if (!empty($assignedport)) {
3010
				$portmtu = $config['interfaces'][$assignedport]['mtu'];
3011
				if (empty($portmtu) && (get_interface_mtu($vlan['vlanif']) != $mtu))
3012
					pfSense_interface_mtu($vlan['vlanif'], $mtu);
3013
			} else if (get_interface_mtu($vlan['vlanif']) != $mtu)
3014
				pfSense_interface_mtu($vlan['vlanif'], $mtu);
3015
		}
3016
		if ($mtu != get_interface_mtu($realhwif))
3017
			pfSense_interface_mtu($realhwif, $mtu);
3018
	}
3019

    
3020
	unset($vlanifs);
3021

    
3022
	if(does_interface_exist($wancfg['if']))
3023
		interfaces_bring_up($wancfg['if']);
3024

    
3025
	interface_netgraph_needed($interface);
3026

    
3027
	if (!$g['booting']) {
3028
		link_interface_to_vips($interface, "update");
3029

    
3030
		unset($gre);
3031
		$gre = link_interface_to_gre($interface);
3032
		if (!empty($gre))
3033
			array_walk($gre, 'interface_gre_configure');
3034

    
3035
		unset($gif);
3036
		$gif = link_interface_to_gif($interface);
3037
		if (!empty($gif))
3038
			array_walk($gif, 'interface_gif_configure');
3039

    
3040
		if ($linkupevent == false || substr($realif, 0, 4) == "ovpn") {
3041
			unset($bridgetmp);
3042
			$bridgetmp = link_interface_to_bridge($interface);
3043
			if (!empty($bridgetmp))
3044
				interface_bridge_add_member($bridgetmp, $realif);
3045
		}
3046

    
3047
		$grouptmp = link_interface_to_group($interface);
3048
		if (!empty($grouptmp))
3049
			array_walk($grouptmp, 'interface_group_add_member');
3050

    
3051
		if ($interface == "lan")
3052
			/* make new hosts file */
3053
			system_hosts_generate();
3054

    
3055
		if ($reloadall == true) {
3056

    
3057
			/* reconfigure static routes (kernel may have deleted them) */
3058
			system_routing_configure($interface);
3059

    
3060
			/* reload ipsec tunnels */
3061
			vpn_ipsec_configure();
3062

    
3063
			/* restart dnsmasq */
3064
			services_dnsmasq_configure();
3065

    
3066
			/* update dyndns */
3067
			send_event("service reload dyndns {$interface}");
3068

    
3069
			/* reload captive portal */
3070
			captiveportal_init_rules();
3071
		}
3072
	}
3073

    
3074
	return 0;
3075
}
3076

    
3077
function interface_track6_configure($interface = "lan", $wancfg) {
3078
	global $config, $g;
3079

    
3080
	if (!is_array($wancfg))
3081
		return;
3082

    
3083
	if (!isset($wancfg['enable']))
3084
		return;
3085

    
3086
	/* If the interface is not configured via another, exit */
3087
	if (empty($wancfg['track6-interface']))
3088
		return;
3089

    
3090
	/* always configure a link-local of fe80::1:1 on the track6 interfaces */
3091
	$realif = get_real_interface($interface);
3092
	mwexec("/sbin/ifconfig {$realif} inet6 fe80::1:1%{$realif}");
3093

    
3094
	$trackcfg = $config['interfaces'][$wancfg['track6-interface']];
3095
	if (!isset($trackcfg['enable'])) {
3096
		log_error("Interface {$interface} tracking non-existant interface {$wancfg['track6-interface']}");
3097
		return;
3098
	}
3099

    
3100
	switch($trackcfg['ipaddrv6']) {
3101
	case "6to4":
3102
		if ($g['debug'])
3103
			log_error("Interface {$interface} configured via {$wancfg['track6-interface']}  type {$type}");
3104
		interface_track6_6to4_configure($interface, $wancfg);
3105
		break;
3106
	case "6rd":
3107
		if ($g['debug'])
3108
			log_error("Interface {$interface} configured via {$wancfg['track6-interface']}  type {$type}");
3109
		interface_track6_6rd_configure($interface, $wancfg);
3110
		break;
3111
	case "dhcp6":
3112
		if ($g['debug'])
3113
			log_error("Interface {$interface} configured via {$wancfg['track6-interface']}  type {$type}");
3114
		interface_track6_dhcp6_configure($interface, $wancfg);
3115
		break;
3116
	}
3117

    
3118
	if (!$g['booting']) {
3119
		if (!function_exists('services_dhcpd_configure'))
3120
			require_once("services.inc");
3121

    
3122
		services_dhcpd_configure("inet6");
3123
	}
3124

    
3125
	return 0;
3126
}
3127

    
3128
function interface_track6_6rd_configure($interface = "lan", $lancfg) {
3129
	global $config, $g;
3130
	global $interface_ipv6_arr_cache;
3131
        global $interface_snv6_arr_cache;
3132

    
3133
	if (!is_array($lancfg))
3134
		return;
3135

    
3136
	/* If the interface is not configured via another, exit */
3137
	if (empty($lancfg['track6-interface']))
3138
		return;
3139

    
3140
	if (!is_numeric($lancfg['track6-prefix-id']))
3141
		$lancfg['track6-prefix-id'] = 0;
3142

    
3143
	$wancfg = $config['interfaces'][$lancfg['track6-interface']];
3144
	if (empty($wancfg)) {
3145
		log_error("Interface {$interface} tracking non-existant interface {$lancfg['track6-interface']}");
3146
		return;
3147
	}
3148

    
3149
	$ip4address = get_interface_ip($lancfg['track6-interface']);
3150
	if (!is_ipaddrv4($ip4address)) { /* XXX: This should not be needed by 6rd || (is_private_ip($ip4address))) { */
3151
		log_error("The interface IPv4 '{$ip4address}' address on interface '{$lancfg['track6-interface']}' is not public, not configuring 6RD tunnel");
3152
		return;
3153
	}
3154
	$hexwanv4 = return_hex_ipv4($ip4address);
3155

    
3156
	/* create the long prefix notation for math, save the prefix length */
3157
	$rd6prefix = explode("/", $wancfg['prefix-6rd']);
3158
	$rd6prefixlen = $rd6prefix[1];
3159
	$rd6prefix = Net_IPv6::uncompress($rd6prefix[0]);
3160

    
3161
	/* binary presentation of the prefix for all 128 bits. */
3162
	$rd6lanbin = convert_ipv6_to_128bit($rd6prefix);
3163

    
3164
	/* just save the left prefix length bits */
3165
	$rd6lanbin = substr($rd6lanbin, 0, $rd6prefixlen);
3166
	/* add the v4 address, offset n bits from the left */
3167
	$rd6lanbin .= substr(sprintf("%032b", hexdec($hexwanv4)), (0 + $wancfg['prefix-6rd-v4plen']), 32);
3168

    
3169
	/* add the custom prefix id, max 32bits long? (64 bits - (prefixlen + (32 - v4plen)) */
3170
	/* 64 - (37 + (32 - 17)) = 8 == /52 */
3171
	$restbits = 64 - ($rd6prefixlen + (32 - $wancfg['prefix-6rd-v4plen']));
3172
	// echo "64 - (prefixlen {$rd6prefixlen} + v4len (32 - {$wancfg['prefix-6rd-v4plen']})) = {$restbits} \n";
3173
	$rd6lanbin .= substr(sprintf("%032b", str_pad($lancfg['track6-prefix-id'], 32, "0", STR_PAD_LEFT)), (32 - $restbits), 32);
3174
	/* fill the rest out with zeros */
3175
	$rd6lanbin = str_pad($rd6lanbin, 128, "0", STR_PAD_RIGHT);;
3176

    
3177
	/* convert the 128 bits for the lan address back into a valid IPv6 address */
3178
	$rd6lan = convert_128bit_to_ipv6($rd6lanbin) ."1";
3179

    
3180
	$lanif = get_real_interface($interface);
3181
	$oip = find_interface_ipv6($lanif);
3182
	if (is_ipaddrv6($oip))
3183
		mwexec("/sbin/ifconfig {$lanif} inet6 {$oip} delete");
3184
	unset($interface_ipv6_arr_cache[$lanif]);
3185
	unset($interface_snv6_arr_cache[$lanif]);
3186
	log_error("rd6 {$interface} with ipv6 address {$rd6lan} based on {$lancfg['track6-interface']} ipv4 {$ip4address}");
3187
	mwexec("/sbin/ifconfig {$lanif} inet6 {$rd6lan} prefixlen 64");
3188

    
3189
	return 0;
3190
}
3191

    
3192
function interface_track6_6to4_configure($interface = "lan", $lancfg) {
3193
	global $config, $g;
3194
	global $interface_ipv6_arr_cache;
3195
        global $interface_snv6_arr_cache;
3196

    
3197
	if (!is_array($lancfg))
3198
		return;
3199

    
3200
	/* If the interface is not configured via another, exit */
3201
	if (empty($lancfg['track6-interface']))
3202
		return;
3203

    
3204
	$wancfg = $config['interfaces'][$lancfg['track6-interface']];
3205
	if (empty($wancfg)) {
3206
		log_error("Interface {$interface} tracking non-existant interface {$lancfg['track6-interface']}");
3207
		return;
3208
	}
3209

    
3210
	if (!is_numeric($lancfg['track6-prefix-id']))
3211
		$lancfg['track6-prefix-id'] = 0;
3212

    
3213
	$ip4address = get_interface_ip($lancfg['track6-interface']);
3214
	if (!is_ipaddrv4($ip4address) || is_private_ip($ip4address)) {
3215
		log_error("The interface IPv4 '{$ip4address}' address on interface '{$lancfg['track6-interface']}' is not public, not configuring 6RD tunnel");
3216
		return;
3217
	}
3218
	$hexwanv4 = return_hex_ipv4($ip4address);
3219

    
3220
	/* create the long prefix notation for math, save the prefix length */
3221
	$sixto4prefix = "2002::";
3222
	$sixto4prefixlen = 16;
3223
	$sixto4prefix = Net_IPv6::uncompress($sixto4prefix);
3224

    
3225
	/* binary presentation of the prefix for all 128 bits. */
3226
	$sixto4lanbin = convert_ipv6_to_128bit($sixto4prefix);
3227

    
3228
	/* just save the left prefix length bits */
3229
	$sixto4lanbin = substr($sixto4lanbin, 0, $sixto4prefixlen);
3230
	/* add the v4 address */
3231
	$sixto4lanbin .= sprintf("%032b", hexdec($hexwanv4));
3232
	/* add the custom prefix id */
3233
	$sixto4lanbin .= sprintf("%016b", $lancfg['track6-prefix-id']);
3234
	/* fill the rest out with zeros */
3235
	$sixto4lanbin = str_pad($sixto4lanbin, 128, "0", STR_PAD_RIGHT);;
3236

    
3237
	/* convert the 128 bits for the lan address back into a valid IPv6 address */
3238
	$sixto4lan = convert_128bit_to_ipv6($sixto4lanbin) ."1";
3239

    
3240
	$lanif = get_real_interface($interface);
3241
	$oip = find_interface_ipv6($lanif);
3242
	if (is_ipaddrv6($oip))
3243
		mwexec("/sbin/ifconfig {$lanif} inet6 {$oip} delete");
3244
	unset($interface_ipv6_arr_cache[$lanif]);
3245
	unset($interface_snv6_arr_cache[$lanif]);
3246
	log_error("sixto4 {$interface} with ipv6 address {$sixto4lan} based on {$lancfg['track6-interface']} ipv4 {$ip4address}");
3247
	mwexec("/sbin/ifconfig {$lanif} inet6 {$sixto4lan} prefixlen 64");
3248

    
3249
	return 0;
3250
}
3251

    
3252
function interface_track6_dhcp6_configure($interface = "lan", $lancfg) {
3253
	global $config, $g;
3254
	global $interface_ipv6_arr_cache;
3255
        global $interface_snv6_arr_cache;
3256

    
3257
	if (!is_array($lancfg))
3258
		return;
3259

    
3260
	/* If the interface is not configured via another, exit */
3261
	if (empty($lancfg['track6-interface']))
3262
		return;
3263

    
3264
	if (!is_numeric($lancfg['track6-prefix-id']))
3265
		$lancfg['track6-prefix-id'] = 0;
3266

    
3267
	$wancfg = $config['interfaces'][$lancfg['track6-interface']];
3268
	if (empty($wancfg)) {
3269
		log_error("Interface {$interface} tracking non-existant interface {$lancfg['track6-interface']}");
3270
		return;
3271
	}
3272

    
3273
	$lanif = get_real_interface($interface);
3274
	$oip = find_interface_ipv6($lanif);
3275
	if (is_ipaddrv6($oip))
3276
		mwexec("/sbin/ifconfig {$lanif} inet6 {$oip} delete");
3277
	unset($interface_ipv6_arr_cache[$lanif]);
3278
	unset($interface_snv6_arr_cache[$lanif]);
3279

    
3280
	if ($wancfg['ipaddrv6'] == "slaac") {
3281
		$ifcfgipv6 = get_interface_ipv6($lancfg['track6-interface']);
3282
		if (is_ipaddrv6($ifcfgipv6)) {
3283
			$dhcp6lanarr = explode(":", Net_IPv6::uncompress($ifcfgipv6));
3284
			$dhcp6lanarr[4] = 0;
3285
			$dhcp6lanarr[5] = 0;
3286
			$dhcp6lanarr[6] = 0;
3287
			$dhcp6lanarr[7] = 1;
3288
			$dhcp6lan =  Net_IPv6::compress(implode(":", $dhcp6lanarr));
3289
			log_error("dhcp6 {$interface} with ipv6 address {$dhcp6lan} based on {$lancfg['track6-interface']}");
3290
			mwexec("/sbin/ifconfig {$lanif} inet6 {$dhcp6lan} prefixlen 64");
3291
		}
3292
	}
3293

    
3294
	return 0;
3295
}
3296

    
3297
function interface_6rd_configure($interface = "wan", $wancfg) {
3298
	global $config, $g;
3299

    
3300
	/* because this is a tunnel interface we can only function
3301
	 *	with a public IPv4 address on the interface */
3302

    
3303
	if (!is_array($wancfg))
3304
		return;
3305

    
3306
	$wanif = get_real_interface($interface);
3307
	$ip4address = find_interface_ip($wanif);
3308
	if ((!is_ipaddrv4($ip4address)) || (is_private_ip($ip4address))) {
3309
		log_error("The interface IPv4 '{$ip4address}' address on interface '{$wanif}' is not public, not configuring 6RD tunnel");
3310
		return false;
3311
	}
3312
	$hexwanv4 = return_hex_ipv4($ip4address);
3313

    
3314
	if (!is_numeric($wancfg['prefix-6rd-v4plen']))
3315
		$wancfg['prefix-6rd-v4plen'] = 0;
3316

    
3317
	/* create the long prefix notation for math, save the prefix length */
3318
	$rd6prefix = explode("/", $wancfg['prefix-6rd']);
3319
	$rd6prefixlen = $rd6prefix[1];
3320
	$rd6prefix = Net_IPv6::uncompress($rd6prefix[0]);
3321

    
3322
	/* we need the hex form of the broker IPv4 address */
3323
	$hexbrv4 = return_hex_ipv4($wancfg['gateway-6rd']);
3324

    
3325
	/* binary presentation of the prefix for all 128 bits. */
3326
	$rd6prefixbin = convert_ipv6_to_128bit($rd6prefix);
3327

    
3328
	/* just save the left prefix length bits */
3329
	$rd6brprefixbin = substr($rd6prefixbin, 0, $rd6prefixlen);
3330
	/* if the prefix length is not 32 bits we need to shave bits off from the left of the v4 address. */
3331
	$rd6brprefixbin .= substr(sprintf("%032b", hexdec($hexbrv4)), $wancfg['prefix-6rd-v4plen'], 32);
3332
	/* fill out the rest with 0's */
3333
	$rd6brprefixbin = str_pad($rd6brprefixbin, 128, "0", STR_PAD_RIGHT);
3334

    
3335
	/* convert the 128 bits for the broker address back into a valid IPv6 address */
3336
	$rd6brgw = convert_128bit_to_ipv6($rd6brprefixbin);
3337

    
3338
	/* just save the left prefix length bits */
3339
	$rd6prefixbin = substr($rd6prefixbin, 0, $rd6prefixlen);
3340
	/* if the prefix length is not 32 bits we need to shave bits off from the left of the v4 address. */
3341
	$rd6prefixbin .= substr(sprintf("%032b", hexdec($hexwanv4)), $wancfg['prefix-6rd-v4plen'], 32);
3342
	/* fill out the rest with 0's */
3343
	$rd6prefixbin = str_pad($rd6prefixbin, 128, "0", STR_PAD_RIGHT);;
3344

    
3345
	/* convert the 128 bits for the broker address back into a valid IPv6 address */
3346
	$rd6prefix = convert_128bit_to_ipv6($rd6prefixbin);
3347

    
3348
	/* XXX: need to extend to support variable prefix size for v4 */
3349
	if (!is_module_loaded("if_stf"))
3350
		mwexec("/sbin/kldload if_stf.ko");
3351
	$stfiface = "{$interface}_stf";
3352
	if (does_interface_exist($stfiface))
3353
		pfSense_interface_destroy($stfiface);
3354
	$tmpstfiface = pfSense_interface_create("stf");
3355
	pfSense_interface_rename($tmpstfiface, $stfiface);
3356
	pfSense_interface_flags($stfiface, IFF_LINK2);
3357
	mwexec("/sbin/ifconfig {$stfiface} inet6 {$rd6prefix}/{$rd6prefixlen}");
3358
	if ($g['debug'])
3359
		log_error("Created 6rd interface {$stfiface} {$rd6prefix}/{$rd6prefixlen}");
3360

    
3361
	/* write out a default router file */
3362
	file_put_contents("{$g['tmp_path']}/{$wanif}_routerv6", "{$rd6brgw}\n");
3363
	file_put_contents("{$g['tmp_path']}/{$wanif}_defaultgwv6", "{$rd6brgw}\n");
3364

    
3365
	$ip4gateway = get_interface_gateway($interface);
3366
	if (is_ipaddrv4($ip4gateway))
3367
		mwexec("/sbin/route change -host " . $wancfg['gateway-6rd'] . " {$ip4gateway}");
3368

    
3369
	/* configure dependent interfaces */
3370
	if (!$g['booting'])
3371
		link_interface_to_track6($interface, "update");
3372

    
3373
	return 0;
3374
}
3375

    
3376
function interface_6to4_configure($interface = "wan", $wancfg){
3377
	global $config, $g;
3378

    
3379
	/* because this is a tunnel interface we can only function
3380
	 *	with a public IPv4 address on the interface */
3381

    
3382
	if (!is_array($wancfg))
3383
		return;
3384

    
3385
	$wanif = get_real_interface($interface);
3386
	$ip4address = find_interface_ip($wanif);
3387
	if((!is_ipaddrv4($ip4address)) || (is_private_ip($ip4address))) {
3388
		log_error("The interface IPv4 '{$ip4address}' address on interface '{$wanif}' is not public, not configuring 6RD tunnel");
3389
		return false;
3390
	}
3391

    
3392
	/* create the long prefix notation for math, save the prefix length */
3393
	$stfprefixlen = 16;
3394
	$stfprefix = Net_IPv6::uncompress("2002::");
3395
	$stfarr = explode(":", $stfprefix);
3396
	$v4prefixlen = "0";
3397

    
3398
	/* we need the hex form of the interface IPv4 address */
3399
	$ip4arr = explode(".", $ip4address);
3400
	$hexwanv4 = "";
3401
	foreach($ip4arr as $octet)
3402
		$hexwanv4 .= sprintf("%02x", $octet);
3403

    
3404
	/* we need the hex form of the broker IPv4 address */
3405
	$ip4arr = explode(".", "192.88.99.1");
3406
	$hexbrv4 = "";
3407
	foreach($ip4arr as $octet)
3408
		$hexbrv4 .= sprintf("%02x", $octet);
3409

    
3410
	/* binary presentation of the prefix for all 128 bits. */
3411
	$stfprefixbin = "";
3412
	foreach($stfarr as $element) {
3413
		$stfprefixbin .= sprintf("%016b", hexdec($element));
3414
	}
3415
	/* just save the left prefix length bits */
3416
	$stfprefixstartbin = substr($stfprefixbin, 0, $stfprefixlen);
3417

    
3418
	/* if the prefix length is not 32 bits we need to shave bits off from the left of the v4 address. */
3419
	$stfbrokerbin = substr(sprintf("%032b", hexdec($hexbrv4)), $v4prefixlen, 32);
3420
	$stfbrokerbin = str_pad($stfprefixstartbin . $stfbrokerbin, 128, "0", STR_PAD_RIGHT);;
3421

    
3422
	/* for the local subnet too. */
3423
	$stflanbin = substr(sprintf("%032b", hexdec($hexwanv4)), $v4prefixlen, 32);
3424
	$stflanbin = str_pad($stfprefixstartbin . $stflanbin, 128, "0", STR_PAD_RIGHT);;
3425

    
3426
	/* convert the 128 bits for the broker address back into a valid IPv6 address */
3427
	$stfbrarr = array();
3428
	$stfbrbinarr = array();
3429
	$stfbrbinarr = str_split($stfbrokerbin, 16);
3430
	foreach($stfbrbinarr as $bin)
3431
		$stfbrarr[] = dechex(bindec($bin));
3432
	$stfbrgw = Net_IPv6::compress(implode(":", $stfbrarr));
3433

    
3434
	/* convert the 128 bits for the broker address back into a valid IPv6 address */
3435
	$stflanarr = array();
3436
	$stflanbinarr = array();
3437
	$stflanbinarr = str_split($stflanbin, 16);
3438
	foreach($stflanbinarr as $bin)
3439
		$stflanarr[] = dechex(bindec($bin));
3440
	$stflanpr = Net_IPv6::compress(implode(":", $stflanarr));
3441
	$stflanarr[7] = 1;
3442
	$stflan = Net_IPv6::compress(implode(":", $stflanarr));
3443

    
3444
	/* setup the stf interface */
3445
	if (!is_module_loaded("if_stf"))
3446
		mwexec("/sbin/kldload if_stf.ko");
3447
	$stfiface = "{$interface}_stf";
3448
	if (does_interface_exist($stfiface))
3449
		pfSense_interface_destroy($stfiface);
3450
	$tmpstfiface = pfSense_interface_create("stf");
3451
	pfSense_interface_rename($tmpstfiface, $stfiface);
3452
	pfSense_interface_flags($stfiface, IFF_LINK2);
3453
	mwexec("/sbin/ifconfig {$stfiface} inet6 {$stflanpr} prefixlen 16");
3454

    
3455
	if ($g['debug'])
3456
		log_error("Set IPv6 address inet6 {$stflanpr} prefixlen 16 for {$stfiface}, route {$stfbrgw}");
3457

    
3458
	/* write out a default router file */
3459
	file_put_contents("{$g['tmp_path']}/{$wanif}_routerv6", "{$stfbrgw}");
3460
	file_put_contents("{$g['tmp_path']}/{$wanif}_defaultgwv6", "{$stfbrgw}");
3461

    
3462
	$ip4gateway = get_interface_gateway($interface);
3463
	if (is_ipaddrv4($ip4gateway))
3464
		mwexec("route change -host 192.88.99.1 {$ip4gateway}");
3465

    
3466
	if (!$g['booting'])
3467
		link_interface_to_track6($interface, "update");
3468

    
3469
	return 0;
3470
}
3471

    
3472
function interface_dhcpv6_configure($interface = "wan", $wancfg) {
3473
	global $config, $g;
3474

    
3475
	if (!is_array($wancfg))
3476
		return;
3477

    
3478
	$wanif = get_real_interface($interface);
3479
	$dhcp6cconf = "";
3480
	$dhcp6cconf .= "interface {$wanif} {\n";
3481

    
3482
	/* for SLAAC interfaces we do fire off a dhcp6 client for just our name servers */
3483
	if($wancfg['ipaddrv6'] == "slaac") {
3484
		$dhcp6cconf .= "	information-only;\n";
3485
		$dhcp6cconf .= "	request domain-name-servers;\n";
3486
		$dhcp6cconf .= "	request domain-name;\n";
3487
		$dhcp6cconf .= "	script \"{$g['varetc_path']}/dhcp6c_{$interface}_script.sh\"; # we'd like some nameservers please\n";
3488
		$dhcp6cconf .= "};\n";
3489
	} else {
3490

    
3491
		$dhcp6cconf .= " 	send ia-na 0;	# request stateful address\n";
3492
		if(is_numeric($wancfg['dhcp6-ia-pd-len']))
3493
			$dhcp6cconf .= "	send ia-pd 0;	# request prefix delegation\n";
3494
		$dhcp6cconf .= "request domain-name-servers;\n";
3495
		$dhcp6cconf .= "request domain-name;\n";
3496
		$dhcp6cconf .= "script \"{$g['varetc_path']}/dhcp6c_{$interface}_script.sh\"; # we'd like some nameservers please\n";
3497

    
3498
		$dhcp6cconf .= "};\n";
3499
		$dhcp6cconf .= "id-assoc na 0 { };\n";
3500
		if(is_numeric($wancfg['dhcp6-ia-pd-len'])) {
3501
			/* Setup the prefix delegation */
3502
			$dhcp6cconf .= "id-assoc pd 0 {\n";
3503
			$iflist = link_interface_to_track6($interface);
3504
			foreach ($iflist as $friendly => $ifcfg) {
3505
				if (is_numeric($ifcfg['track6-prefix-id'])) {
3506
					if ($g['debug'])
3507
						log_error("setting up $ifdescr - {$ifcfg['track6-prefix-id']}");
3508
					$realif = get_real_interface($friendly);
3509
					$dhcp6cconf .= "	prefix-interface {$realif} {\n";
3510
					$dhcp6cconf .= "		sla-id {$ifcfg['track6-prefix-id']};\n";
3511
					$dhcp6cconf .= "		sla-len {$wancfg['dhcp6-ia-pd-len']};\n";
3512
					$dhcp6cconf .= "	};\n";
3513
				}
3514
			}
3515
			unset($iflist, $ifcfg);
3516
			$dhcp6cconf .= "};\n";
3517
		}
3518
	}
3519
	/* wide-dhcp6c works for now. */
3520
	if (!@file_put_contents("{$g['varetc_path']}/dhcp6c_{$interface}.conf", $dhcp6cconf)) {
3521
		printf("Error: cannot open dhcp6c_{$interface}.conf in interface_dhcpv6_configure() for writing.\n");
3522
		unset($dhcp6cconf);
3523
		return 1;
3524
	}
3525
	unset($dhcp6cconf);
3526

    
3527
	$dhcp6cscript = "#!/bin/sh\n";
3528
	$dhcp6cscript .= "# This shell script launches /etc/rc.newwanipv6 with a interface argument.\n";
3529
	$dhcp6cscript .= "/etc/rc.newwanipv6 {$wanif} \n";
3530
	/* Add wide-dhcp6c shell script here. Because we can not pass a argument to it. */
3531
	if (!@file_put_contents("{$g['varetc_path']}/dhcp6c_{$interface}_script.sh", $dhcp6cscript)) {
3532
		printf("Error: cannot open dhcp6c_{$interface}_script.sh in interface_dhcpv6_configure() for writing.\n");
3533
		unset($dhcp6cscript);
3534
		return 1;
3535
	}
3536
	unset($dhcp6cscript);
3537
	@chmod("{$g['varetc_path']}/dhcp6c_{$interface}_script.sh", 0755);
3538

    
3539
	$rtsoldscript = "#!/bin/sh\n";
3540
	$rtsoldscript .= "# This shell script launches dhcp6c and configured gateways for this interface.\n";
3541
	$rtsoldscript .= "echo $2 > {$g['tmp_path']}/{$wanif}_routerv6\n";
3542
	$rtsoldscript .= "echo $2 > {$g['tmp_path']}/{$wanif}_defaultgwv6\n";
3543
	$rtsoldscript .= "if [ -f {$g['varrun_path']}/dhcp6c_{$wanif}.pid ]; then\n";
3544
	$rtsoldscript .= "\t/bin/pkill -F {$g['varrun_path']}/dhcp6c_{$wanif}.pid\n";
3545
	$rtsoldscript .= "fi\n";
3546
	$rtsoldscript .= "/usr/local/sbin/dhcp6c -d -c {$g['varetc_path']}/dhcp6c_{$interface}.conf -p {$g['varrun_path']}/dhcp6c_{$wanif}.pid {$wanif}\n";
3547
	/* Add wide-dhcp6c shell script here. Because we can not pass a argument to it. */
3548
	if (!@file_put_contents("{$g['varetc_path']}/rtsold_{$wanif}_script.sh", $rtsoldscript)) {
3549
		printf("Error: cannot open rtsold_{$interface}_script.sh in interface_dhcpv6_configure() for writing.\n");
3550
		unset($rtsoldscript);
3551
		return 1;
3552
	}
3553
	unset($rtsoldscript);
3554
	@chmod("{$g['varetc_path']}/rtsold_{$wanif}_script.sh", 0755);
3555

    
3556
	/* accept router advertisements for this interface */
3557
	mwexec("/sbin/sysctl -w net.inet6.ip6.accept_rtadv=1");
3558
	log_error("Accept router advertisements on interface {$wanif} ");
3559
	mwexec("/sbin/ifconfig {$wanif} inet6 accept_rtadv");
3560

    
3561
	/* fire up rtsold for IPv6 RAs first, this backgrounds immediately. It will call dhcp6c */
3562
	if (isvalidpid("{$g['varrun_path']}/rtsold_{$wanif}.pid"))
3563
		killbypid("{$g['varrun_path']}/rtsold_{$wanif}.pid");
3564
	mwexec("/usr/sbin/rtsold -1 -p {$g['varrun_path']}/rtsold_{$wanif}.pid -O {$g['varetc_path']}/rtsold_{$wanif}_script.sh {$wanif}");
3565

    
3566
	/* NOTE: will be called from rtsold invoked script 
3567
	 * link_interface_to_track6($interface, "update");
3568
	 */
3569

    
3570
	return 0;
3571
}
3572

    
3573
function interface_dhcp_configure($interface = "wan") {
3574
	global $config, $g;
3575

    
3576
	$wancfg = $config['interfaces'][$interface];
3577
	$wanif = $wancfg['if'];
3578
	if (empty($wancfg))
3579
		$wancfg = array();
3580

    
3581
	/* generate dhclient_wan.conf */
3582
	$fd = fopen("{$g['varetc_path']}/dhclient_{$interface}.conf", "w");
3583
	if (!$fd) {
3584
		printf(printf(gettext("Error: cannot open dhclient_%s.conf in interface_dhcp_configure() for writing.%s"), $interface, "\n"));
3585
		return 1;
3586
	}
3587

    
3588
	if ($wancfg['dhcphostname']) {
3589
		$dhclientconf_hostname = "send dhcp-client-identifier \"{$wancfg['dhcphostname']}\";\n";
3590
		$dhclientconf_hostname .= "\tsend host-name \"{$wancfg['dhcphostname']}\";\n";
3591
	} else {
3592
		$dhclientconf_hostname = "";
3593
	}
3594

    
3595
	$wanif = get_real_interface($interface);
3596
	if (empty($wanif)) {
3597
		log_error(sprintf(gettext("Invalid interface \"%s\" in interface_dhcp_configure()"), $interface));
3598
		return 0;
3599
	}
3600
	$dhclientconf = "";
3601

    
3602
	$dhclientconf .= <<<EOD
3603
interface "{$wanif}" {
3604
timeout 60;
3605
retry 15;
3606
select-timeout 0;
3607
initial-interval 1;
3608
	{$dhclientconf_hostname}
3609
	script "/sbin/dhclient-script";
3610
}
3611

    
3612
EOD;
3613

    
3614
if(is_ipaddr($wancfg['alias-address'])) {
3615
	$subnetmask = gen_subnet_mask($wancfg['alias-subnet']);
3616
	$dhclientconf .= <<<EOD
3617
alias {
3618
	interface  "{$wanif}";
3619
	fixed-address {$wancfg['alias-address']};
3620
	option subnet-mask {$subnetmask};
3621
}
3622

    
3623
EOD;
3624
}
3625
	fwrite($fd, $dhclientconf);
3626
	fclose($fd);
3627

    
3628
	/* bring wan interface up before starting dhclient */
3629
	if($wanif)
3630
		interfaces_bring_up($wanif);
3631
	else
3632
		log_error(printf(gettext("Could not bring up %s interface in interface_dhcp_configure()"), $wanif));
3633

    
3634
	/* fire up dhclient */
3635
	mwexec("/sbin/dhclient -c {$g['varetc_path']}/dhclient_{$interface}.conf {$wanif} > {$g['tmp_path']}/{$wanif}_output 2> {$g['tmp_path']}/{$wanif}_error_output");
3636

    
3637
	return 0;
3638
}
3639

    
3640
function interfaces_group_setup() {
3641
	global $config;
3642

    
3643
	if (!is_array($config['ifgroups']['ifgroupentry']))
3644
		return;
3645

    
3646
	foreach ($config['ifgroups']['ifgroupentry'] as $groupar)
3647
		interface_group_setup($groupar);
3648

    
3649
	return;
3650
}
3651

    
3652
function interface_group_setup(&$groupname /* The parameter is an array */) {
3653
	global $config;
3654

    
3655
	if (!is_array($groupname))
3656
		return;
3657
	$members = explode(" ", $groupname['members']);
3658
	foreach($members as $ifs) {
3659
		$realif = get_real_interface($ifs);
3660
		if ($realif)
3661
			mwexec("/sbin/ifconfig {$realif} group {$groupname['ifname']}");
3662
	}
3663

    
3664
	return;
3665
}
3666

    
3667
function is_interface_group($if) {
3668
	global $config;
3669

    
3670
	if (is_array($config['ifgroups']['ifgroupentry']))
3671
		foreach ($config['ifgroups']['ifgroupentry'] as $groupentry) {
3672
			if ($groupentry['ifname'] === $if)
3673
				return true;
3674
		}
3675

    
3676
	return false;
3677
}
3678

    
3679
function interface_group_add_member($interface, $groupname) {
3680
	$interface = get_real_interface($interface);
3681
	mwexec("/sbin/ifconfig {$interface} group {$groupname}", true);
3682
}
3683

    
3684
/* COMPAT Function */
3685
function convert_friendly_interface_to_real_interface_name($interface) {
3686
	return get_real_interface($interface);
3687
}
3688

    
3689
/* COMPAT Function */
3690
function get_real_wan_interface($interface = "wan") {
3691
	return get_real_interface($interface);
3692
}
3693

    
3694
/* COMPAT Function */
3695
function get_current_wan_address($interface = "wan") {
3696
	return get_interface_ip($interface);
3697
}
3698

    
3699
/*
3700
 * convert_real_interface_to_friendly_interface_name($interface): convert fxp0 -> wan, etc.
3701
 */
3702
function convert_real_interface_to_friendly_interface_name($interface = "wan") {
3703
	global $config;
3704

    
3705
	if (stristr($interface, "_vip")) {
3706
		foreach ($config['virtualip']['vip'] as $counter => $vip) {
3707
			if ($vip['mode'] == "carp")  {
3708
				if ($interface == "{$vip['interface']}_vip{$vip['vhid']}")
3709
					return $vip['interface'];
3710
			}
3711
		}
3712
	}
3713

    
3714
	/* XXX: For speed reasons reference directly the interface array */
3715
	$ifdescrs = &$config['interfaces'];
3716
	//$ifdescrs = get_configured_interface_list(false, true);
3717

    
3718
	if (strstr($interface, "_stf"))
3719
		$interface = str_replace("_stf", "", $interface);
3720

    
3721
	foreach ($ifdescrs as $if => $ifname) {
3722
		if ($if == $interface || $config['interfaces'][$if]['if'] == $interface)
3723
			return $if;
3724

    
3725
		if (stristr($interface, "_wlan0") && $config['interfaces'][$if]['if'] == interface_get_wireless_base($interface))
3726
			return $if;
3727

    
3728
		// XXX: This case doesn't work anymore (segfaults - recursion?) - should be replaced with something else or just removed.
3729
		//      Not to be replaced with get_real_interface - causes slow interface listings here because of recursion!
3730
		/*
3731
		$int = get_parent_interface($if);
3732
		if ($int[0] == $interface)
3733
			return $ifname;
3734
		 */
3735
	}
3736

    
3737
	return NULL;
3738
}
3739

    
3740
/* attempt to resolve interface to friendly descr */
3741
function convert_friendly_interface_to_friendly_descr($interface) {
3742
	global $config;
3743

    
3744
	switch ($interface) {
3745
	case "l2tp":
3746
		$ifdesc = "L2TP";
3747
		break;
3748
	case "pptp":
3749
		$ifdesc = "PPTP";
3750
		break;
3751
	case "pppoe":
3752
		$ifdesc = "PPPoE";
3753
		break;
3754
	case "openvpn":
3755
		$ifdesc = "OpenVPN";
3756
		break;
3757
	case "enc0":
3758
	case "ipsec":
3759
		$ifdesc = "IPsec";
3760
		break;
3761
	default:
3762
		if (isset($config['interfaces'][$interface])) {
3763
			if (empty($config['interfaces'][$interface]['descr']))
3764
				$ifdesc = strtoupper($interface);
3765
			else
3766
				$ifdesc = strtoupper($config['interfaces'][$interface]['descr']);
3767
			break;
3768
		} else if (stristr($interface, "_vip")) {
3769
			if (is_array($config['virtualip']['vip'])) {
3770
				foreach ($config['virtualip']['vip'] as $counter => $vip) {
3771
					if ($vip['mode'] == "carp")  {
3772
						if ($interface == "{$vip['interface']}_vip{$vip['vhid']}")
3773
							return "{$vip['subnet']} - {$vip['descr']}";
3774
					}
3775
				}
3776
			}
3777
		} else {
3778
			/* if list */
3779
			$ifdescrs = get_configured_interface_with_descr(false, true);
3780
			foreach ($ifdescrs as $if => $ifname) {
3781
				if ($if == $interface || $ifname == $interface)
3782
					return $ifname;
3783
			}
3784
		}
3785
		break;
3786
	}
3787

    
3788
	return $ifdesc;
3789
}
3790

    
3791
function convert_real_interface_to_friendly_descr($interface) {
3792
	global $config;
3793

    
3794
	$ifdesc = convert_real_interface_to_friendly_interface_name("{$interface}");
3795

    
3796
	if ($ifdesc) {
3797
		$iflist = get_configured_interface_with_descr(false, true);
3798
		return $iflist[$ifdesc];
3799
	}
3800

    
3801
	return $interface;
3802
}
3803

    
3804
/*
3805
 *  get_parent_interface($interface):
3806
 *			--returns the (real or virtual) parent interface(s) array for a given interface friendly name (i.e. wan)
3807
 *				or virtual interface (i.e. vlan)
3808
 *				(We need array because MLPPP and bridge interfaces have more than one parent.)
3809
 *			-- returns $interface passed in if $interface parent is not found
3810
 *			-- returns empty array if an invalid interface is passed
3811
 *	(Only handles ppps and vlans now.)
3812
 */
3813
function get_parent_interface($interface) {
3814
	global $config;
3815

    
3816
	$parents = array();
3817
	//Check that we got a valid interface passed
3818
	$realif = get_real_interface($interface);
3819
	if ($realif == NULL)
3820
		return $parents;
3821

    
3822
	// If we got a real interface, find it's friendly assigned name
3823
	$interface = convert_real_interface_to_friendly_interface_name($interface);
3824

    
3825
	if (!empty($interface) && isset($config['interfaces'][$interface])) {
3826
		$ifcfg = $config['interfaces'][$interface];
3827
		switch ($ifcfg['ipaddr']) {
3828
			case "ppp":
3829
			case "pppoe":
3830
			case "pptp":
3831
			case "l2tp":
3832
				if (empty($parents))
3833
					if (is_array($config['ppps']['ppp']))
3834
						foreach ($config['ppps']['ppp'] as $pppidx => $ppp) {
3835
							if ($ifcfg['if'] == $ppp['if']) {
3836
								$ports = explode(',', $ppp['ports']);
3837
								foreach ($ports as $pid => $parent_if)
3838
									$parents[$pid] = get_real_interface($parent_if);
3839
								break;
3840
							}
3841
						}
3842
				break;
3843
			case "dhcp":
3844
			case "static":
3845
			default:
3846
				// Handle _vlans
3847
				if (stristr($realif,"_vlan"))
3848
					if (is_array($config['vlans']['vlan']))
3849
						foreach ($config['vlans']['vlan'] as $vlanidx => $vlan)
3850
							if ($ifcfg['if'] == $vlan['vlanif']){
3851
								$parents[0] = $vlan['if'];
3852
								break;
3853
							}
3854
				break;
3855
		}
3856
	}
3857

    
3858
	if (empty($parents))
3859
		$parents[0] = $realif;
3860

    
3861
	return $parents;
3862
}
3863

    
3864
function interface_is_wireless_clone($wlif) {
3865
	if(!stristr($wlif, "_wlan")) {
3866
		return false;
3867
	} else {
3868
		return true;
3869
	}
3870
}
3871

    
3872
function interface_get_wireless_base($wlif) {
3873
	if(!stristr($wlif, "_wlan")) {
3874
		return $wlif;
3875
	} else {
3876
		return substr($wlif, 0, stripos($wlif, "_wlan"));
3877
	}
3878
}
3879

    
3880
function interface_get_wireless_clone($wlif) {
3881
	if(!stristr($wlif, "_wlan")) {
3882
		return $wlif . "_wlan0";
3883
	} else {
3884
		return $wlif;
3885
	}
3886
}
3887

    
3888
function get_real_interface($interface = "wan", $family = "all") {
3889
	global $config, $g;
3890

    
3891
	$wanif = NULL;
3892

    
3893
	switch ($interface) {
3894
	case "l2tp":
3895
		$wanif = "l2tp";
3896
		break;
3897
	case "pptp":
3898
		$wanif = "pptp";
3899
		break;
3900
	case "pppoe":
3901
		$wanif = "pppoe";
3902
		break;
3903
	case "openvpn":
3904
		$wanif = "openvpn";
3905
		break;
3906
	case "ipsec":
3907
	case "enc0":
3908
		$wanif = "enc0";
3909
		break;
3910
	case "ppp":
3911
		$wanif = "ppp";
3912
		break;
3913
	default:
3914
		// If a real interface was alread passed simply
3915
		// pass the real interface back.  This encourages
3916
		// the usage of this function in more cases so that
3917
		// we can combine logic for more flexibility.
3918
		if(does_interface_exist($interface)) {
3919
			$wanif = $interface;
3920
			break;
3921
		}
3922

    
3923
		if (empty($config['interfaces'][$interface]))
3924
			break;
3925

    
3926
		$cfg = &$config['interfaces'][$interface];
3927

    
3928
		if ($family == "inet6") {
3929
			switch ($cfg['ipaddrv6']) {
3930
			case "6rd":
3931
			case "6to4":
3932
				$wanif = "{$interface}_stf";
3933
				break;
3934
			default:
3935
				if( is_array($cfg['wireless']) || preg_match($g['wireless_regex'], $cfg['if']))
3936
					$wanif = interface_get_wireless_clone($cfg['if']);
3937
				else
3938
					$wanif = $cfg['if'];
3939
				break;
3940
			}
3941
		} else {
3942
			// Wireless cloned NIC support (FreeBSD 8+)
3943
			// interface name format: $parentnic_wlanparentnic#
3944
			// example: ath0_wlan0
3945
			if( is_array($cfg['wireless']) || preg_match($g['wireless_regex'], $cfg['if']))
3946
				$wanif = interface_get_wireless_clone($cfg['if']);
3947
			else
3948
				$wanif = $cfg['if'];
3949
		}
3950
		break;
3951
	}
3952

    
3953
	return $wanif;
3954
}
3955

    
3956
/* Guess the physical interface by providing a IP address */
3957
function guess_interface_from_ip($ipaddress) {
3958
	if(! is_ipaddr($ipaddress)) {
3959
		return false;
3960
	}
3961
	if(is_ipaddrv4($ipaddress)) {
3962
		/* create a route table we can search */
3963
		exec("netstat -rnWf inet", $output, $ret);
3964
		foreach($output as $line) {
3965
			if(preg_match("/^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+\/[0-9]+[ ]+link[#]/", $line)) {
3966
				$fields = preg_split("/[ ]+/", $line);
3967
				if(ip_in_subnet($ipaddress, $fields[0])) {
3968
					return $fields[6];
3969
				}
3970
			}
3971
		}
3972
	}
3973
	/* FIXME: This works from cursory testing, regexp might need fine tuning */
3974
	if(is_ipaddrv6($ipaddress)) {
3975
		/* create a route table we can search */
3976
		exec("netstat -rnWf inet6", $output, $ret);
3977
		foreach($output as $line) {
3978
			if(preg_match("/[0-9a-f]+[:]+[0-9a-f]+[:]+[\/][0-9]+/", $line)) {
3979
				$fields = preg_split("/[ ]+/", $line);
3980
				if(ip_in_subnet($ipaddress, $fields[0])) {
3981
					return $fields[6];
3982
				}
3983
			}
3984
		}
3985
	}
3986
	$ret = exec_command("/sbin/route -n get {$ipaddress} | /usr/bin/awk '/interface/ { print \$2; };'");
3987
	if(empty($ret)) {
3988
		return false;
3989
	}
3990
	return $ret;
3991
}
3992

    
3993
/*
3994
 * find_ip_interface($ip): return the interface where an ip is defined
3995
 *   (or if $bits is specified, where an IP within the subnet is defined)
3996
 */
3997
function find_ip_interface($ip, $bits = null) {
3998
	if (!is_ipaddr($ip))
3999
		return false;
4000
	
4001
	$isv6ip = is_ipaddrv6($ip);
4002
	
4003
	/* if list */
4004
	$ifdescrs = get_configured_interface_list();
4005

    
4006
	foreach ($ifdescrs as $ifdescr => $ifname) {
4007
		$ifip = ($isv6ip) ? get_interface_ipv6($ifname) : get_interface_ip($ifname);
4008
		if (is_null($ifip))
4009
			continue;
4010
		if (is_null($bits)) {
4011
			if ($ip == $ifip) {
4012
				$int = get_real_interface($ifname);
4013
				return $int;
4014
			}
4015
		}
4016
		else {
4017
			if (ip_in_subnet($ifip, $ip . "/" . $bits)) {
4018
				$int = get_real_interface($ifname);
4019
				return $int;
4020
			}
4021
		}
4022
	}
4023

    
4024
	return false;
4025
}
4026

    
4027
/*
4028
 * find_virtual_ip_alias($ip): return the virtual IP alias where an IP is found
4029
 *   (or if $bits is specified, where an IP within the subnet is found)
4030
 */
4031
function find_virtual_ip_alias($ip, $bits = null) {
4032
	global $config;
4033
	
4034
	if (!is_array($config['virtualip']['vip'])) {
4035
		return false;
4036
	}
4037
	if (!is_ipaddr($ip))
4038
		return false;
4039
	
4040
	$isv6ip = is_ipaddrv6($ip);
4041
	
4042
	foreach ($config['virtualip']['vip'] as $vip) {
4043
		if ($vip['mode'] === "ipalias") {
4044
			if (is_ipaddrv6($vip['subnet']) != $isv6ip)
4045
				continue;
4046
			if (is_null($bits)) {
4047
				if (ip_in_subnet($ip, $vip['subnet'] . "/" . $vip['subnet_bits'])) {
4048
					return $vip;
4049
				}
4050
			}
4051
			else {
4052
				if (($isv6ip && check_subnetsv6_overlap($ip, $bits, $vip['subnet'], $vip['subnet_bits']))
4053
					|| (!$isv6ip && check_subnets_overlap($ip, $bits, $vip['subnet'], $vip['subnet_bits']))) {
4054
					return $vip;
4055
				}
4056
			}
4057
		}
4058
	}
4059
	return false;
4060
}
4061

    
4062
/*
4063
 *   find_number_of_created_carp_interfaces: return the number of carp interfaces
4064
 */
4065
function find_number_of_created_carp_interfaces() {
4066
	return `/sbin/ifconfig | grep "carp:" | wc -l`;
4067
}
4068

    
4069
function get_all_carp_interfaces() {
4070
	$ints = str_replace("\n", " ", `ifconfig | grep "carp:" -B2 | grep ": flag" | cut -d: -f1`);
4071
	$ints = explode(" ", $ints);
4072
	return $ints;
4073
}
4074

    
4075
/*
4076
 * find_carp_interface($ip): return the carp interface where an ip is defined
4077
 */
4078
function find_carp_interface($ip) {
4079
	global $config;
4080
	if (is_array($config['virtualip']['vip'])) {
4081
		foreach ($config['virtualip']['vip'] as $vip) {
4082
			if ($vip['mode'] == "carp") {
4083
				if(is_ipaddrv4($ip)) {
4084
					$carp_ip = get_interface_ip($vip['interface']);
4085
				}
4086
				if(is_ipaddrv6($ip)) {
4087
					$carp_ip = get_interface_ipv6($vip['interface']);
4088
				}
4089
				exec("/sbin/ifconfig", $output, $return);
4090
				foreach($output as $line) {
4091
					$elements = preg_split("/[ ]+/i", $line);
4092
					if(strstr($elements[0], "vip"))
4093
						$curif = str_replace(":", "", $elements[0]);
4094
					if(stristr($line, $ip)) {
4095
						$if = $curif;
4096
						continue;
4097
					}
4098
				}
4099

    
4100
				if ($if)
4101
					return $if;
4102
			}
4103
		}
4104
	}
4105
}
4106

    
4107
function link_carp_interface_to_parent($interface) {
4108
	global $config;
4109

    
4110
	if ($interface == "")
4111
		return;
4112

    
4113
	$carp_ip = get_interface_ip($interface);
4114
	$carp_ipv6 = get_interface_ipv6($interface);
4115

    
4116
	if((!is_ipaddrv4($carp_ip)) && (!is_ipaddrv6($carp_ipv6)))
4117
		return;
4118

    
4119
	/* if list */
4120
	$ifdescrs = get_configured_interface_list();
4121
	foreach ($ifdescrs as $ifdescr => $ifname) {
4122
		/* check IPv4 */
4123
		if(is_ipaddrv4($carp_ip)) {
4124
			$interfaceip = get_interface_ip($ifname);
4125
			$subnet_bits = get_interface_subnet($ifname);
4126
			$subnet_ip = gen_subnet("{$interfaceip}", "{$subnet_bits}");
4127
			if(ip_in_subnet($carp_ip, "{$subnet_ip}/{$subnet_bits}"))
4128
				return $ifname;
4129
		}
4130
		/* Check IPv6 */
4131
		if(is_ipaddrv6($carp_ipv6)) {
4132
			$interfaceipv6 = get_interface_ipv6($ifname);
4133
			$prefixlen = get_interface_subnetv6($ifname);
4134
			if(ip_in_subnet($carp_ipv6, "{$interfaceipv6}/{$prefixlen}"))
4135
				return $ifname;
4136
		}
4137
	}
4138
	return "";
4139
}
4140

    
4141

    
4142
/****f* interfaces/link_ip_to_carp_interface
4143
 * NAME
4144
 *   link_ip_to_carp_interface - Find where a CARP interface links to.
4145
 * INPUTS
4146
 *   $ip
4147
 * RESULT
4148
 *   $carp_ints
4149
 ******/
4150
function link_ip_to_carp_interface($ip) {
4151
	global $config;
4152

    
4153
	if (!is_ipaddr($ip))
4154
		return;
4155

    
4156
	$carp_ints = "";
4157
	if (is_array($config['virtualip']['vip'])) {
4158
		$first = 0;
4159
		$carp_int = array();
4160
		foreach ($config['virtualip']['vip'] as $vip) {
4161
			if ($vip['mode'] == "carp") {
4162
				$carp_ip = $vip['subnet'];
4163
				$carp_sn = $vip['subnet_bits'];
4164
				$carp_nw = gen_subnet($carp_ip, $carp_sn);
4165
				if (ip_in_subnet($ip, "{$carp_nw}/{$carp_sn}")) {
4166
					$carp_int[] = "{$vip['interface']}_vip{$vip['vhid']}";
4167
				}
4168
			}
4169
		}
4170
		if (!empty($carp_int))
4171
			$carp_ints = implode(" ", array_unique($carp_int));
4172
	}
4173

    
4174
	return $carp_ints;
4175
}
4176

    
4177
function link_interface_to_track6($int, $action = "") {
4178
	global $config;
4179

    
4180
	if (empty($int))
4181
		return;
4182

    
4183
	if (is_array($config['interfaces'])) {
4184
		$list = array();
4185
		foreach ($config['interfaces'] as $ifname => $ifcfg) {
4186
			if (!isset($ifcfg['enable']))
4187
				continue;
4188
			if (!empty($ifcfg['ipaddrv6']) && $ifcfg['track6-interface'] == $int) {
4189
				if ($action == "update")
4190
					interface_track6_configure($ifname, $ifcfg);
4191
				else if ($action == "")
4192
					$list[$ifname] = $ifcfg;
4193
			}
4194
		}
4195
		return $list;
4196
	}
4197
}
4198

    
4199
function link_interface_to_vlans($int, $action = "") {
4200
	global $config;
4201

    
4202
	if (empty($int))
4203
		return;
4204

    
4205
	if (is_array($config['vlans']['vlan'])) {
4206
		$ifaces = array();
4207
		foreach ($config['vlans']['vlan'] as $vlan) {
4208
			if ($int == $vlan['if']) {
4209
				if ($action == "update") {
4210
					interfaces_bring_up($int);
4211
				} else if ($action == "")
4212
					$ifaces[$vlan['tag']] = $vlan;
4213
			}
4214
		}
4215
		if (!empty($ifaces))
4216
			return $ifaces;
4217
	}
4218
}
4219

    
4220
function link_interface_to_vips($int, $action = "") {
4221
	global $config;
4222

    
4223
	if (is_array($config['virtualip']['vip'])) {
4224
		$result = array();
4225
		foreach ($config['virtualip']['vip'] as $vip) {
4226
			if ($int == $vip['interface']) {
4227
				if ($action == "update")
4228
					interfaces_vips_configure($int);
4229
				else
4230
					$result[] = $vip;
4231
			}
4232
		}
4233
		return $result;
4234
	}
4235
}
4236

    
4237
/****f* interfaces/link_interface_to_bridge
4238
 * NAME
4239
 *   link_interface_to_bridge - Finds out a bridge group for an interface
4240
 * INPUTS
4241
 *   $ip
4242
 * RESULT
4243
 *   bridge[0-99]
4244
 ******/
4245
function link_interface_to_bridge($int) {
4246
	global $config;
4247

    
4248
	if (is_array($config['bridges']['bridged'])) {
4249
		foreach ($config['bridges']['bridged'] as $bridge) {
4250
			if (in_array($int, explode(',', $bridge['members'])))
4251
				return "{$bridge['bridgeif']}";
4252
		}
4253
	}
4254
}
4255

    
4256
function link_interface_to_group($int) {
4257
	global $config;
4258

    
4259
	$result = array();
4260

    
4261
	if (is_array($config['ifgroups']['ifgroupentry'])) {
4262
		foreach ($config['ifgroups']['ifgroupentry'] as $group) {
4263
			if (in_array($int, explode(" ", $group['members'])))
4264
				$result[$group['ifname']] = $int;
4265
		}
4266
	}
4267

    
4268
	return $result;
4269
}
4270

    
4271
function link_interface_to_gre($interface) {
4272
	global $config;
4273

    
4274
	$result = array();
4275

    
4276
	if (is_array($config['gres']['gre'])) {
4277
		foreach ($config['gres']['gre'] as $gre)
4278
			if($gre['if'] == $interface)
4279
				$result[] = $gre;
4280
	}
4281

    
4282
	return $result;
4283
}
4284

    
4285
function link_interface_to_gif($interface) {
4286
	global $config;
4287

    
4288
	$result = array();
4289

    
4290
	if (is_array($config['gifs']['gif'])) {
4291
		foreach ($config['gifs']['gif'] as $gif)
4292
			if($gif['if'] == $interface)
4293
				$result[] = $gif;
4294
	}
4295

    
4296
	return $result;
4297
}
4298

    
4299
/*
4300
 * find_interface_ip($interface): return the interface ip (first found)
4301
 */
4302
function find_interface_ip($interface, $flush = false)
4303
{
4304
	global $interface_ip_arr_cache;
4305
	global $interface_sn_arr_cache;
4306

    
4307
	$interface = str_replace("\n", "", $interface);
4308

    
4309
	if (!does_interface_exist($interface))
4310
		return;
4311

    
4312
	/* Setup IP cache */
4313
	if (!isset($interface_ip_arr_cache[$interface]) or $flush) {
4314
		$ifinfo = pfSense_get_interface_addresses($interface);
4315
		$interface_ip_arr_cache[$interface] = $ifinfo['ipaddr'];
4316
		$interface_sn_arr_cache[$interface] = $ifinfo['subnetbits'];
4317
	}
4318

    
4319
	return $interface_ip_arr_cache[$interface];
4320
}
4321

    
4322
/*
4323
 * find_interface_ipv6($interface): return the interface ip (first found)
4324
 */
4325
function find_interface_ipv6($interface, $flush = false)
4326
{
4327
	global $interface_ipv6_arr_cache;
4328
	global $interface_snv6_arr_cache;
4329
	global $config;
4330

    
4331
	$interface = trim($interface);
4332
	$interface = get_real_interface($interface);
4333

    
4334
	if (!does_interface_exist($interface))
4335
		return;
4336

    
4337
	/* Setup IP cache */
4338
	if (!isset($interface_ipv6_arr_cache[$interface]) or $flush) {
4339
		// FIXME: Add IPv6 support to the pfSense module
4340
		$ifinfo = array();
4341
		exec("/sbin/ifconfig {$interface} inet6", $output);
4342
		foreach($output as $line) {
4343
			if(preg_match("/inet6/", $line)) {
4344
				$parts = explode(" ", $line);
4345
				if(! preg_match("/fe80::/", $parts[1])) {
4346
					$ifinfo['ipaddrv6'] = $parts[1];
4347
					if($parts[2] == "-->") {
4348
						$parts[5] = "126";
4349
						$ifinfo['subnetbitsv6'] = $parts[5];
4350
					} else {
4351
						$ifinfo['subnetbitsv6'] = $parts[3];
4352
					}
4353
					break;
4354
				}
4355
			}
4356
		}
4357
		$interface_ipv6_arr_cache[$interface] = $ifinfo['ipaddrv6'];
4358
		$interface_snv6_arr_cache[$interface] = $ifinfo['subnetbitsv6'];
4359
	}
4360

    
4361
	return $interface_ipv6_arr_cache[$interface];
4362
}
4363

    
4364
/*
4365
 * find_interface_ipv6_ll($interface): return the interface ipv6 link local (first found)
4366
 */
4367
function find_interface_ipv6_ll($interface, $flush = false)
4368
{
4369
	global $interface_llv6_arr_cache;
4370
	global $config;
4371

    
4372
	$interface = str_replace("\n", "", $interface);
4373

    
4374
	if (!does_interface_exist($interface))
4375
		return;
4376

    
4377
	/* Setup IP cache */
4378
	if (!isset($interface_llv6_arr_cache[$interface]) or $flush) {
4379
		$ifinfo = pfSense_get_interface_addresses($interface);
4380
		// FIXME: Add IPv6 support to the pfSense module
4381
		exec("/sbin/ifconfig {$interface} inet6", $output);
4382
		foreach($output as $line) {
4383
			if(preg_match("/inet6/", $line)) {
4384
				$parts = explode(" ", $line);
4385
				if(preg_match("/fe80::/", $parts[1])) {
4386
					$partsaddress = explode("%", $parts[1]);
4387
					$ifinfo['linklocal'] = $partsaddress[0];
4388
				}
4389
			}
4390
		}
4391
		$interface_llv6_arr_cache[$interface] = $ifinfo['linklocal'];
4392
	}
4393
	return $interface_llv6_arr_cache[$interface];
4394
}
4395

    
4396
function find_interface_subnet($interface, $flush = false)
4397
{
4398
	global $interface_sn_arr_cache;
4399
	global $interface_ip_arr_cache;
4400

    
4401
	$interface = str_replace("\n", "", $interface);
4402
	if (does_interface_exist($interface) == false)
4403
		return;
4404

    
4405
	if (!isset($interface_sn_arr_cache[$interface]) or $flush) {
4406
		$ifinfo = pfSense_get_interface_addresses($interface);
4407
		$interface_ip_arr_cache[$interface] = $ifinfo['ipaddr'];
4408
		$interface_sn_arr_cache[$interface] = $ifinfo['subnetbits'];
4409
	}
4410

    
4411
	return $interface_sn_arr_cache[$interface];
4412
}
4413

    
4414
function find_interface_subnetv6($interface, $flush = false)
4415
{
4416
	global $interface_snv6_arr_cache;
4417
	global $interface_ipv6_arr_cache;
4418

    
4419
	$interface = str_replace("\n", "", $interface);
4420
	if (does_interface_exist($interface) == false)
4421
		return;
4422

    
4423
	$foundv6 = false;
4424
	if (!isset($interface_snv6_arr_cache[$interface]) or $flush) {
4425
		$ifinfo = array();
4426
		// FIXME: Add IPv6 support to the pfSense module
4427
		unset($output);
4428
		exec("/sbin/ifconfig {$interface} inet6", $output);
4429
		foreach($output as $line) {
4430
			$line = trim($line);
4431
			if(preg_match("/inet6/", $line)) {
4432
				$parts = explode(" ", $line);
4433
				if(! preg_match("/fe80::/", $parts[1])) {
4434
					$ifinfo['ipaddrv6'] = $parts[1];
4435
					if($parts[2] == "-->") {
4436
						$parts[5] = "126";
4437
						$ifinfo['subnetbitsv6'] = $parts[5];
4438
					} else {
4439
						$ifinfo['subnetbitsv6'] = $parts[3];
4440
					}
4441
					$foundv6 = true;
4442
					break;
4443
				}
4444
			}
4445
		}
4446
		if ($foundv6 === true) {
4447
			$interface_ipv6_arr_cache[$interface] = $ifinfo['ipaddrv6'];
4448
			$interface_snv6_arr_cache[$interface] = $ifinfo['subnetbitsv6'];
4449
		} else
4450
			unset($interface_ipv6_arr_cache[$interface], $interface_snv6_arr_cache[$interface]);
4451
	}
4452

    
4453
	return $interface_snv6_arr_cache[$interface];
4454
}
4455

    
4456
function ip_in_interface_alias_subnet($interface, $ipalias) {
4457
	global $config;
4458

    
4459
	if (empty($interface) || !is_ipaddr($ipalias))
4460
		return false;
4461
	if (is_array($config['virtualip']['vip'])) {
4462
		foreach ($config['virtualip']['vip'] as $vip) {
4463
			switch ($vip['mode']) {
4464
			case "ipalias":
4465
				if ($vip['interface'] <> $interface)
4466
					break;
4467
				if (ip_in_subnet($ipalias, gen_subnet($vip['subnet'], $vip['subnet_bits']) . "/" . $vip['subnet_bits']))
4468
					return true;
4469
				break;
4470
			}
4471
		}
4472
	}
4473

    
4474
	return false;
4475
}
4476

    
4477
function get_interface_ip($interface = "wan")
4478
{
4479
	$realif = get_failover_interface($interface);
4480
	if (!$realif) {
4481
		if (preg_match("/^carp/i", $interface))
4482
			$realif = $interface;
4483
		else if (preg_match("/^[a-z0-9]+_vip/i", $interface))
4484
			$realif = $interface;
4485
		else
4486
			return null;
4487
	}
4488

    
4489
	$curip = find_interface_ip($realif);
4490
	if ($curip && is_ipaddr($curip) && ($curip != "0.0.0.0"))
4491
		return $curip;
4492
	else
4493
		return null;
4494
}
4495

    
4496
function get_interface_ipv6($interface = "wan", $flush = false)
4497
{
4498
	global $config;
4499

    
4500
	$realif = get_failover_interface($interface, "inet6");
4501
	if (!$realif) {
4502
		if (preg_match("/^[a-z0-9]+_vip/i", $interface))
4503
			$realif = $interface;
4504
		else
4505
			return null;
4506
	}
4507

    
4508
	$curip = find_interface_ipv6($realif, $flush);
4509
	if ($curip && is_ipaddrv6($curip) && ($curip != "::"))
4510
		return $curip;
4511
	else
4512
		return null;
4513
}
4514

    
4515
function get_interface_linklocal($interface = "wan")
4516
{
4517
	$realif = get_failover_interface($interface);
4518
	if (!$realif) {
4519
		if (preg_match("/^carp/i", $interface))
4520
			$realif = $interface;
4521
		else if (preg_match("/^[a-z0-9]+_vip/i", $interface))
4522
			$realif = $interface;
4523
		else
4524
			return null;
4525
	}
4526

    
4527
	$curip = find_interface_ipv6_ll($realif);
4528
	if ($curip && is_ipaddrv6($curip) && ($curip != "::"))
4529
		return $curip;
4530
	else
4531
		return null;
4532
}
4533

    
4534
function get_interface_subnet($interface = "wan")
4535
{
4536
	$realif = get_real_interface($interface);
4537
	if (!$realif) {
4538
		if (preg_match("/^carp/i", $interface))
4539
			$realif = $interface;
4540
		else if (preg_match("/^[a-z0-9]+_vip/i", $interface))
4541
			$realif = $interface;
4542
		else
4543
			return null;
4544
	}
4545

    
4546
	$cursn = find_interface_subnet($realif);
4547
	if (!empty($cursn))
4548
		return $cursn;
4549

    
4550
	return null;
4551
}
4552

    
4553
function get_interface_subnetv6($interface = "wan")
4554
{
4555
	global $config;
4556

    
4557
	$realif = get_real_interface($interface, "inet6");
4558
	if (!$realif) {
4559
		if (preg_match("/^[a-z0-9]+_vip/i", $interface))
4560
			$realif = $interface;
4561
		else
4562
			return null;
4563
	}
4564

    
4565
	$cursn = find_interface_subnetv6($realif);
4566
	if (!empty($cursn))
4567
		return $cursn;
4568

    
4569
	return null;
4570
}
4571

    
4572
/* return outside interfaces with a gateway */
4573
function get_interfaces_with_gateway() {
4574
	global $config;
4575

    
4576
	$ints = array();
4577

    
4578
	/* loop interfaces, check config for outbound */
4579
	foreach($config['interfaces'] as $ifdescr => $ifname) {
4580
		switch ($ifname['ipaddr']) {
4581
			case "dhcp":
4582
			case "ppp";
4583
			case "pppoe":
4584
			case "pptp":
4585
			case "l2tp":
4586
			case "ppp";
4587
				$ints[$ifdescr] = $ifdescr;
4588
			break;
4589
			default:
4590
				if (substr($ifname['if'], 0, 4) ==  "ovpn" ||
4591
				    !empty($ifname['gateway']))
4592
					$ints[$ifdescr] = $ifdescr;
4593
			break;
4594
		}
4595
	}
4596
	return $ints;
4597
}
4598

    
4599
/* return true if interface has a gateway */
4600
function interface_has_gateway($friendly) {
4601
	global $config;
4602

    
4603
	if (!empty($config['interfaces'][$friendly])) {
4604
		$ifname = &$config['interfaces'][$friendly];
4605
		switch ($ifname['ipaddr']) {
4606
			case "dhcp":
4607
			case "pppoe":
4608
			case "pptp":
4609
			case "l2tp":
4610
			case "ppp";
4611
				return true;
4612
			break;
4613
			default:
4614
				if (substr($ifname['if'], 0, 4) ==  "ovpn")
4615
					return true;
4616
				if (!empty($ifname['gateway']))
4617
					return true;
4618
			break;
4619
		}
4620
	}
4621

    
4622
	return false;
4623
}
4624

    
4625
/* return true if interface has a gateway */
4626
function interface_has_gatewayv6($friendly) {
4627
	global $config;
4628

    
4629
	if (!empty($config['interfaces'][$friendly])) {
4630
		$ifname = &$config['interfaces'][$friendly];
4631
		switch ($ifname['ipaddrv6']) {
4632
			case "slaac":
4633
			case "dhcp6":
4634
			case "6to4":
4635
			case "6rd":
4636
				return true;
4637
				break;
4638
			default:
4639
				if (substr($ifname['if'], 0, 4) ==  "ovpn")
4640
					return true;
4641
				if (!empty($ifname['gatewayv6']))
4642
					return true;
4643
				break;
4644
		}
4645
	}
4646

    
4647
	return false;
4648
}
4649

    
4650
/****f* interfaces/is_altq_capable
4651
 * NAME
4652
 *   is_altq_capable - Test if interface is capable of using ALTQ
4653
 * INPUTS
4654
 *   $int            - string containing interface name
4655
 * RESULT
4656
 *   boolean         - true or false
4657
 ******/
4658

    
4659
function is_altq_capable($int) {
4660
	/* Per:
4661
	 * http://www.freebsd.org/cgi/man.cgi?query=altq&manpath=FreeBSD+7.2-current&format=html
4662
	 * Only the following drivers have ALTQ support
4663
	 */
4664
	$capable = array("age", "alc", "ale", "an", "ath", "aue", "awi", "bce",
4665
			"bfe", "bge", "bridge", "cas", "dc", "de", "ed", "em", "ep", "fxp", "gem",
4666
			"hme", "igb", "ipw", "iwi", "jme", "le", "lem", "msk", "mxge", "my", "nfe",
4667
			"npe", "nve", "ral", "re", "rl", "rum", "run", "bwn", "sf", "sis", "sk",
4668
			"ste", "stge", "txp", "udav", "ural", "vge", "vr", "wi", "xl",
4669
			"ndis", "tun", "ovpns", "ovpnc", "vlan", "pppoe", "pptp", "ng",
4670
			"l2tp", "ppp", "vtnet");
4671

    
4672
	$int_family = remove_ifindex($int);
4673

    
4674
	if (in_array($int_family, $capable))
4675
		return true;
4676
	else if (stristr($int, "l2tp")) /* VLANs are name $parent_$vlan now */
4677
		return true;
4678
	else if (stristr($int, "_vlan")) /* VLANs are name $parent_$vlan now */
4679
		return true;
4680
	else if (stristr($int, "_wlan")) /* WLANs are name $parent_$wlan now */
4681
		return true;
4682
	else
4683
		return false;
4684
}
4685

    
4686
/****f* interfaces/is_interface_wireless
4687
 * NAME
4688
 *   is_interface_wireless - Returns if an interface is wireless
4689
 * RESULT
4690
 *   $tmp       - Returns if an interface is wireless
4691
 ******/
4692
function is_interface_wireless($interface) {
4693
	global $config, $g;
4694

    
4695
	$friendly = convert_real_interface_to_friendly_interface_name($interface);
4696
	if(!isset($config['interfaces'][$friendly]['wireless'])) {
4697
		if (preg_match($g['wireless_regex'], $interface)) {
4698
			if (isset($config['interfaces'][$friendly]))
4699
				$config['interfaces'][$friendly]['wireless'] = array();
4700
			return true;
4701
		}
4702
		return false;
4703
	} else
4704
		return true;
4705
}
4706

    
4707
function get_wireless_modes($interface) {
4708
	/* return wireless modes and channels */
4709
	$wireless_modes = array();
4710

    
4711
	$cloned_interface = get_real_interface($interface);
4712

    
4713
	if($cloned_interface && is_interface_wireless($cloned_interface)) {
4714
		$chan_list = "/sbin/ifconfig {$cloned_interface} list chan";
4715
		$stack_list = "/usr/bin/awk -F\"Channel \" '{ gsub(/\\*/, \" \"); print \$2 \"\\\n\" \$3 }'";
4716
		$format_list = "/usr/bin/awk '{print \$5 \" \" \$6 \",\" \$1}'";
4717

    
4718
		$interface_channels = "";
4719
		exec("$chan_list | $stack_list | sort -u | $format_list 2>&1", $interface_channels);
4720
		$interface_channel_count = count($interface_channels);
4721

    
4722
		$c = 0;
4723
		while ($c < $interface_channel_count)
4724
		{
4725
			$channel_line = explode(",", $interface_channels["$c"]);
4726
			$wireless_mode = trim($channel_line[0]);
4727
			$wireless_channel = trim($channel_line[1]);
4728
			if(trim($wireless_mode) != "") {
4729
				/* if we only have 11g also set 11b channels */
4730
				if($wireless_mode == "11g") {
4731
					if(!isset($wireless_modes["11b"]))
4732
						$wireless_modes["11b"] = array();
4733
				} else if($wireless_mode == "11g ht") {
4734
					if(!isset($wireless_modes["11b"]))
4735
						$wireless_modes["11b"] = array();
4736
					if(!isset($wireless_modes["11g"]))
4737
						$wireless_modes["11g"] = array();
4738
					$wireless_mode = "11ng";
4739
				} else if($wireless_mode == "11a ht") {
4740
					if(!isset($wireless_modes["11a"]))
4741
						$wireless_modes["11a"] = array();
4742
					$wireless_mode = "11na";
4743
				}
4744
				$wireless_modes["$wireless_mode"]["$c"] = $wireless_channel;
4745
			}
4746
			$c++;
4747
		}
4748
	}
4749
	return($wireless_modes);
4750
}
4751

    
4752
/* return channel numbers, frequency, max txpower, and max regulation txpower */
4753
function get_wireless_channel_info($interface) {
4754
	$wireless_channels = array();
4755

    
4756
	$cloned_interface = get_real_interface($interface);
4757

    
4758
	if($cloned_interface && is_interface_wireless($cloned_interface)) {
4759
		$chan_list = "/sbin/ifconfig {$cloned_interface} list txpower";
4760
		$stack_list = "/usr/bin/awk -F\"Channel \" '{ gsub(/\\*/, \" \"); print \$2 \"\\\n\" \$3 }'";
4761
		$format_list = "/usr/bin/awk '{print \$1 \",\" \$3 \" \" \$4 \",\" \$5 \",\" \$7}'";
4762

    
4763
		$interface_channels = "";
4764
		exec("$chan_list | $stack_list | sort -u | $format_list 2>&1", $interface_channels);
4765

    
4766
		foreach ($interface_channels as $channel_line) {
4767
			$channel_line = explode(",", $channel_line);
4768
			if(!isset($wireless_channels[$channel_line[0]]))
4769
				$wireless_channels[$channel_line[0]] = $channel_line;
4770
		}
4771
	}
4772
	return($wireless_channels);
4773
}
4774

    
4775
/****f* interfaces/get_interface_mtu
4776
 * NAME
4777
 *   get_interface_mtu - Return the mtu of an interface
4778
 * RESULT
4779
 *   $tmp       - Returns the mtu of an interface
4780
 ******/
4781
function get_interface_mtu($interface) {
4782
	$mtu = pfSense_get_interface_addresses($interface);
4783
	return $mtu['mtu'];
4784
}
4785

    
4786
function get_interface_mac($interface) {
4787

    
4788
	$macinfo = pfSense_get_interface_addresses($interface);
4789
	return $macinfo["macaddr"];
4790
}
4791

    
4792
/****f* pfsense-utils/generate_random_mac_address
4793
 * NAME
4794
 *   generate_random_mac - generates a random mac address
4795
 * INPUTS
4796
 *   none
4797
 * RESULT
4798
 *   $mac - a random mac address
4799
 ******/
4800
function generate_random_mac_address() {
4801
	$mac = "02";
4802
	for($x=0; $x<5; $x++)
4803
		$mac .= ":" . dechex(rand(16, 255));
4804
	return $mac;
4805
}
4806

    
4807
/****f* interfaces/is_jumbo_capable
4808
 * NAME
4809
 *   is_jumbo_capable - Test if interface is jumbo frame capable.  Useful for determining VLAN capability.
4810
 * INPUTS
4811
 *   $int             - string containing interface name
4812
 * RESULT
4813
 *   boolean          - true or false
4814
 ******/
4815
function is_jumbo_capable($iface) {
4816
	$iface = trim($iface);
4817
	$capable = pfSense_get_interface_addresses($iface);
4818

    
4819
	if (isset($capable['caps']['vlanmtu']))
4820
		return true;
4821

    
4822
	return false;
4823
}
4824

    
4825
function interface_setup_pppoe_reset_file($pppif, $iface="") {
4826
	global $g;
4827

    
4828
	$cron_file = "{$g['varetc_path']}/pppoe_restart_{$pppif}";
4829

    
4830
	if(!empty($iface) && !empty($pppif)){
4831
		$cron_cmd = <<<EOD
4832
#!/bin/sh
4833
/usr/local/sbin/pfSctl -c 'interface reload {$iface}'
4834
/usr/bin/logger -t {$pppif} "PPPoE periodic reset executed on {$iface}"
4835

    
4836
EOD;
4837

    
4838
		@file_put_contents($cron_file, $cron_cmd);
4839
		chmod($cron_file, 0755);
4840
		sigkillbypid("{$g['varrun_path']}/cron.pid", "HUP");
4841
	} else
4842
		unlink_if_exists($cron_file);
4843
}
4844

    
4845
function get_interface_default_mtu($type = "ethernet") {
4846
	switch ($type) {
4847
	case "gre":
4848
		return 1476;
4849
		break;
4850
	case "gif":
4851
		return 1280;
4852
		break;
4853
	case "tun":
4854
	case "vlan":
4855
	case "tap":
4856
	case "ethernet":
4857
	default:
4858
		return 1500;
4859
		break;
4860
	}
4861

    
4862
	/* Never reached */
4863
	return 1500;
4864
}
4865

    
4866
function get_vip_descr($ipaddress) {
4867
	global $config;
4868

    
4869
	foreach ($config['virtualip']['vip'] as $vip) {
4870
		if ($vip['subnet'] == $ipaddress) {
4871
			return ($vip['descr']);
4872
		}
4873
	}
4874
	return "";
4875
}
4876

    
4877
function interfaces_staticarp_configure($if) {
4878
	global $config, $g;
4879
	if(isset($config['system']['developerspew'])) {
4880
		$mt = microtime();
4881
		echo "interfaces_staticarp_configure($if) being called $mt\n";
4882
	}
4883

    
4884
	$ifcfg = $config['interfaces'][$if];
4885

    
4886
	if (empty($if) || empty($ifcfg['if']) || !isset($ifcfg['enable']))
4887
		return 0;
4888

    
4889
	/* Enable staticarp, if enabled */
4890
	if(isset($config['dhcpd'][$if]['staticarp'])) {
4891
		mwexec("/sbin/ifconfig " . escapeshellarg($ifcfg['if']) . " staticarp " );
4892
		mwexec("/usr/sbin/arp -d -i " . escapeshellarg($ifcfg['if']) . " -a > /dev/null 2>&1 ");
4893
		if (is_array($config['dhcpd'][$if]['staticmap'])) {
4894

    
4895
			foreach ($config['dhcpd'][$if]['staticmap'] as $arpent) {
4896
				mwexec("/usr/sbin/arp -s " . escapeshellarg($arpent['ipaddr']) . " " . escapeshellarg($arpent['mac']));
4897

    
4898
			}
4899

    
4900
		}
4901
	} else {
4902
		mwexec("/sbin/ifconfig " . escapeshellarg($ifcfg['if']) . " -staticarp " );
4903
		mwexec("/usr/sbin/arp -d -i " . escapeshellarg($ifcfg['if']) . " -a > /dev/null 2>&1 ");
4904
		if (is_array($config['dhcpd'][$if]['staticmap'])) {
4905
			foreach ($config['dhcpd'][$if]['staticmap'] as $arpent) {
4906
				if (isset($arpent['arp_table_static_entry'])) {
4907
					mwexec("/usr/sbin/arp -s " . escapeshellarg($arpent['ipaddr']) . " " . escapeshellarg($arpent['mac']));
4908
				}
4909
			}
4910
		}
4911
	}
4912

    
4913
	return 0;
4914
}
4915

    
4916
function get_failover_interface($interface, $family = "all") {
4917
	global $config;
4918
	/* shortcut to get_real_interface if we find it in the config */
4919
	if(is_array($config['interfaces'][$interface])) {
4920
		$wanif = get_real_interface($interface, $family);
4921
		return $wanif;
4922
	}
4923

    
4924
	/* compare against gateway groups */
4925
	$a_groups = return_gateway_groups_array();
4926
	if(is_array($a_groups[$interface])) {
4927
		/* we found a gateway group, fetch the interface or vip */
4928
		if($a_groups[$interface][0]['vip'] <> "")
4929
			$wanif = $a_groups[$interface][0]['vip'];
4930
		else
4931
			$wanif = $a_groups[$interface][0]['int'];
4932

    
4933
		return $wanif;
4934
	}
4935
	/* fall through to get_real_interface */
4936
	$wanif = get_real_interface($interface, $family);
4937
	return $wanif;
4938
}
4939

    
4940
function remove_ifindex($ifname) {
4941
	return preg_replace("/[0-9]+$/", "", $ifname);
4942
}
4943

    
4944
?>
(25-25/66)