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1
<?php
2
/*
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 * config.lib.inc
4
 *
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 * part of pfSense (https://www.pfsense.org)
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 * Copyright (c) 2004-2016 Electric Sheep Fencing, LLC
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 * Copyright (c) 2009 Erik Kristensen
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 * All rights reserved.
9
 *
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 * originally part of m0n0wall (http://m0n0.ch/wall)
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 * Copyright (c) 2003-2004 Manuel Kasper <mk@neon1.net>.
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 * All rights reserved.
13
 *
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 * Redistribution and use in source and binary forms, with or without
15
 * modification, are permitted provided that the following conditions are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright notice,
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 *    this list of conditions and the following disclaimer.
19
 *
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in
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 *    the documentation and/or other materials provided with the
23
 *    distribution.
24
 *
25
 * 3. All advertising materials mentioning features or use of this software
26
 *    must display the following acknowledgment:
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 *    "This product includes software developed by the pfSense Project
28
 *    for use in the pfSense® software distribution. (http://www.pfsense.org/).
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 *
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 * 4. The names "pfSense" and "pfSense Project" must not be used to
31
 *    endorse or promote products derived from this software without
32
 *    prior written permission. For written permission, please contact
33
 *    coreteam@pfsense.org.
34
 *
35
 * 5. Products derived from this software may not be called "pfSense"
36
 *    nor may "pfSense" appear in their names without prior written
37
 *    permission of the Electric Sheep Fencing, LLC.
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 *
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 * 6. Redistributions of any form whatsoever must retain the following
40
 *    acknowledgment:
41
 *
42
 * "This product includes software developed by the pfSense Project
43
 * for use in the pfSense software distribution (http://www.pfsense.org/).
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
46
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
48
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE pfSense PROJECT OR
49
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
50
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
51
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
52
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
54
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
55
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
56
 * OF THE POSSIBILITY OF SUCH DAMAGE.
57
 */
58

    
59
/****f* config/encrypted_configxml
60
 * NAME
61
 *   encrypted_configxml - Checks to see if config.xml is encrypted and if so, prompts to unlock.
62
 * INPUTS
63
 *   None
64
 * RESULT
65
 *   $config 	- rewrites config.xml without encryption
66
 ******/
67
function encrypted_configxml() {
68
	global $g, $config;
69

    
70
	if (!file_exists($g['conf_path'] . "/config.xml")) {
71
		return;
72
	}
73

    
74
	if (!platform_booting()) {
75
		return;
76
	}
77

    
78
	$configtxt = file_get_contents($g['conf_path'] . "/config.xml");
79
	if (tagfile_deformat($configtxt, $configtxt, "config.xml")) {
80
		$fp = fopen('php://stdin', 'r');
81
		$data = "";
82
		echo "\n\n*** Encrypted config.xml detected ***\n";
83
		while ($data == "") {
84
			echo "\nEnter the password to decrypt config.xml: ";
85
			$decrypt_password = chop(fgets($fp));
86
			$data = decrypt_data($configtxt, $decrypt_password);
87
			if (!strstr($data, "<pfsense>")) {
88
				$data = "";
89
			}
90
			if ($data) {
91
				$fd = fopen($g['conf_path'] . "/config.xml.tmp", "w");
92
				fwrite($fd, $data);
93
				fclose($fd);
94
				exec("/bin/mv {$g['conf_path']}/config.xml.tmp {$g['conf_path']}/config.xml");
95
				echo "\n" . gettext("Config.xml unlocked.") . "\n";
96
				fclose($fp);
97
				pfSense_fsync("{$g['conf_path']}/config.xml");
98
			} else {
99
				echo "\n" . gettext("Invalid password entered.  Please try again.") . "\n";
100
			}
101
		}
102
	}
103
}
104

    
105
/****f* config/parse_config
106
 * NAME
107
 *   parse_config - Read in config.cache or config.xml if needed and return $config array
108
 * INPUTS
109
 *   $parse       - boolean to force parse_config() to read config.xml and generate config.cache
110
 * RESULT
111
 *   $config      - array containing all configuration variables
112
 ******/
113
function parse_config($parse = false) {
114
	global $g, $config_parsed, $config_extra;
115

    
116
	$lockkey = lock('config');
117
	$config_parsed = false;
118

    
119
	if (!file_exists("{$g['conf_path']}/config.xml") || filesize("{$g['conf_path']}/config.xml") == 0) {
120
		$last_backup = discover_last_backup();
121
		if ($last_backup) {
122
			log_error(gettext("No config.xml found, attempting last known config restore."));
123
			file_notice("config.xml", gettext("No config.xml found, attempting last known config restore."), "pfSenseConfigurator", "");
124
			restore_backup("{$g['conf_path']}/backup/{$last_backup}");
125
		} else {
126
			unlock($lockkey);
127
			die(gettext("Config.xml is corrupted and is 0 bytes.  Could not restore a previous backup."));
128
		}
129
	}
130

    
131
	if (platform_booting(true)) {
132
		echo ".";
133
	}
134

    
135
	// Check for encrypted config.xml
136
	encrypted_configxml();
137

    
138
	if (!$parse) {
139
		if (file_exists($g['tmp_path'] . '/config.cache')) {
140
			$config = unserialize(file_get_contents($g['tmp_path'] . '/config.cache'));
141
			if (!is_array($config)) {
142
				$parse = true;
143
			}
144
		} else {
145
			$parse = true;
146
		}
147
	}
148
	if ($parse == true) {
149
		if (!file_exists($g['conf_path'] . "/config.xml")) {
150
			if (platform_booting(true)) {
151
				echo ".";
152
			}
153
			log_error("No config.xml found, attempting last known config restore.");
154
			file_notice("config.xml", "No config.xml found, attempting last known config restore.", "pfSenseConfigurator", "");
155
			$last_backup = discover_last_backup();
156
			if ($last_backup) {
157
				restore_backup("/cf/conf/backup/{$last_backup}");
158
			} else {
159
				log_error(gettext("Could not restore config.xml."));
160
				unlock($lockkey);
161
				die(gettext("Config.xml is corrupted and is 0 bytes.  Could not restore a previous backup."));
162
			}
163
		}
164
		$config = parse_xml_config($g['conf_path'] . '/config.xml', array($g['xml_rootobj'], 'pfsense'));
165
		if ($config == -1) {
166
			$last_backup = discover_last_backup();
167
			if ($last_backup) {
168
				restore_backup("/cf/conf/backup/{$last_backup}");
169
			} else {
170
				log_error(gettext("Could not restore config.xml."));
171
				unlock($lockkey);
172
				die("Config.xml is corrupted and is 0 bytes.  Could not restore a previous backup.");
173
			}
174
		}
175
		generate_config_cache($config);
176
	}
177

    
178
	if (platform_booting(true)) {
179
		echo ".";
180
	}
181

    
182
	$config_parsed = true;
183
	unlock($lockkey);
184

    
185
	alias_make_table($config);
186

    
187
	return $config;
188
}
189

    
190
/****f* config/generate_config_cache
191
 * NAME
192
 *   generate_config_cache - Write serialized configuration to cache.
193
 * INPUTS
194
 *   $config	- array containing current firewall configuration
195
 * RESULT
196
 *   boolean	- true on completion
197
 ******/
198
function generate_config_cache($config) {
199
	global $g, $config_extra;
200

    
201
	$configcache = fopen($g['tmp_path'] . '/config.cache', "w");
202
	fwrite($configcache, serialize($config));
203
	fclose($configcache);
204
	pfSense_fsync("{$g['tmp_path']}/config.cache");
205

    
206
	unset($configcache);
207
	/* Used for config.extra.xml */
208
	if (file_exists($g['tmp_path'] . '/config.extra.cache') && $config_extra) {
209
		$configcacheextra = fopen($g['tmp_path'] . '/config.extra.cache', "w");
210
		fwrite($configcacheextra, serialize($config_extra));
211
		fclose($configcacheextra);
212
		pfSense_fsync("{$g['tmp_path']}/config.extra.cache");
213
		unset($configcacheextra);
214
	}
215
}
216

    
217
function discover_last_backup() {
218
	$backups = glob('/cf/conf/backup/*.xml');
219
	$last_backup = "";
220
	$last_mtime = 0;
221
	foreach ($backups as $backup) {
222
		if (filemtime($backup) > $last_mtime) {
223
			$last_mtime = filemtime($backup);
224
			$last_backup = $backup;
225
		}
226
	}
227

    
228
	return basename($last_backup);
229
}
230

    
231
function restore_backup($file) {
232
	global $g;
233

    
234
	if (file_exists($file)) {
235
		conf_mount_rw();
236
		unlink_if_exists("{$g['tmp_path']}/config.cache");
237
		copy("$file", "/cf/conf/config.xml");
238
		pfSense_fsync("/cf/conf/config.xml");
239
		pfSense_fsync($g['conf_path']);
240
		disable_security_checks();
241
		log_error(sprintf(gettext('%1$s is restoring the configuration %2$s'), $g['product_name'], $file));
242
		file_notice("config.xml", sprintf(gettext('%1$s is restoring the configuration %2$s'), $g['product_name'], $file), "pfSenseConfigurator", "");
243
		conf_mount_ro();
244
	}
245
}
246

    
247
/****f* config/parse_config_bootup
248
 * NAME
249
 *   parse_config_bootup - Bootup-specific configuration checks.
250
 * RESULT
251
 *   null
252
 ******/
253
function parse_config_bootup() {
254
	global $config, $g;
255

    
256
	if (platform_booting()) {
257
		echo ".";
258
	}
259

    
260
	$lockkey = lock('config');
261
	if (!file_exists("{$g['conf_path']}/config.xml")) {
262
		if (platform_booting()) {
263
			if (strstr($g['platform'], "cdrom")) {
264
				/* try copying the default config. to the floppy */
265
				echo gettext("Resetting factory defaults...") . "\n";
266
				reset_factory_defaults(true, false);
267
				if (!file_exists("{$g['conf_path']}/config.xml")) {
268
					echo gettext("No XML configuration file found - using factory defaults.\n" .
269
								 "Make sure that the configuration floppy disk with the conf/config.xml\n" .
270
								 "file is inserted. If it isn't, the configuration changes will be lost\n" .
271
								 "on reboot.\n");
272
				}
273
			} else {
274
				$last_backup = discover_last_backup();
275
				if ($last_backup) {
276
					log_error("No config.xml found, attempting last known config restore.");
277
					file_notice("config.xml", gettext("No config.xml found, attempting last known config restore."), "pfSenseConfigurator", "");
278
					restore_backup("/cf/conf/backup/{$last_backup}");
279
				}
280
				if (!file_exists("{$g['conf_path']}/config.xml")) {
281
					echo sprintf(gettext("XML configuration file not found.  %s cannot continue booting."), $g['product_name']) . "\n";
282
					unlock($lockkey);
283
					mwexec("/sbin/halt");
284
					exit;
285
				}
286
				log_error("Last known config found and restored.  Please double check the configuration file for accuracy.");
287
				file_notice("config.xml", gettext("Last known config found and restored.  Please double check the configuration file for accuracy."), "pfSenseConfigurator", "");
288
			}
289
		} else {
290
			unlock($lockkey);
291
			log_error(gettext("Could not find a usable configuration file! Exiting...."));
292
			exit(0);
293
		}
294
	}
295

    
296
	if (filesize("{$g['conf_path']}/config.xml") == 0) {
297
		$last_backup = discover_last_backup();
298
		if ($last_backup) {
299
			log_error(gettext("No config.xml found, attempting last known config restore."));
300
			file_notice("config.xml", gettext("No config.xml found, attempting last known config restore."), "pfSenseConfigurator", "");
301
			restore_backup("{$g['conf_path']}/backup/{$last_backup}");
302
		} else {
303
			unlock($lockkey);
304
			die(gettext("Config.xml is corrupted and is 0 bytes.  Could not restore a previous backup."));
305
		}
306
	}
307
	unlock($lockkey);
308

    
309
	$config = parse_config(true);
310

    
311
	if ((float)$config['version'] > (float)$g['latest_config']) {
312
		echo <<<EOD
313

    
314

    
315
*******************************************************************************
316
* WARNING!                                                                    *
317
* The current configuration has been created with a newer version of {$g['product_name']}  *
318
* than this one! This can lead to serious misbehavior and even security       *
319
* holes! You are urged to either upgrade to a newer version of {$g['product_name']} or     *
320
* revert to the default configuration immediately!                            *
321
*******************************************************************************
322

    
323

    
324
EOD;
325
		}
326

    
327
	/* make alias table (for faster lookups) */
328
	alias_make_table($config);
329
}
330

    
331
/****f* config/conf_mount_rw
332
 * NAME
333
 *   conf_mount_rw - Mount filesystems read/write.
334
 * RESULT
335
 *   null
336
 ******/
337
/* mount flash card read/write */
338
function conf_mount_rw() {
339
	global $g, $config;
340

    
341
	/* do not mount on cdrom platform */
342
	if ($g['platform'] == "cdrom" or $g['platform'] == $g['product_name']) {
343
		return;
344
	}
345

    
346
	if ((refcount_reference(1000) > 1) && is_writable("/")) {
347
		return;
348
	}
349

    
350
	$status = mwexec("/sbin/mount -u -w -o sync,noatime {$g['cf_path']}");
351
	if ($status <> 0) {
352
		if (platform_booting()) {
353
			echo gettext("/cf Filesystem is dirty.") . "\n";
354
		}
355
		$status = mwexec("/sbin/mount -u -w -o sync,noatime {$g['cf_path']}");
356
	}
357

    
358
	/*    if the platform is soekris or wrap or $product, lets mount the
359
	 *    compact flash cards root.
360
	*/
361
	$status = mwexec("/sbin/mount -u -w -o sync,noatime /");
362
	/* we could not mount this correctly. */
363
	if ($status <> 0) {
364
		log_error(gettext("/ File system is dirty."));
365
		$status = mwexec("/sbin/mount -u -w -o sync,noatime /");
366
	}
367

    
368
	mark_subsystem_dirty('mount');
369
}
370

    
371
/****f* config/conf_mount_ro
372
 * NAME
373
 *   conf_mount_ro - Mount filesystems readonly.
374
 * RESULT
375
 *   null
376
 ******/
377
function conf_mount_ro() {
378
	global $g, $config;
379

    
380
	// do nothing here. redmine #6184
381
	return;
382

    
383
	/* Do not trust $g['platform'] since this can be clobbered during factory reset. */
384
	$platform = trim(file_get_contents("/etc/platform"));
385
	/* do not umount on cdrom or pfSense platforms */
386
	if ($platform == "cdrom" or $platform == $g['product_name']) {
387
		return;
388
	}
389

    
390
	if (refcount_unreference(1000) > 0) {
391
		return;
392
	}
393

    
394
	if (isset($config['system']['nanobsd_force_rw'])) {
395
		return;
396
	}
397

    
398
	if (platform_booting()) {
399
		return;
400
	}
401

    
402
	clear_subsystem_dirty('mount');
403
	/* sync data, then force a remount of /cf */
404
	pfSense_fsync($g['cf_path']);
405
	mwexec("/sbin/mount -u -r -f -o sync,noatime {$g['cf_path']}");
406
	mwexec("/sbin/mount -u -r -f -o sync,noatime /");
407
}
408

    
409
/****f* config/convert_config
410
 * NAME
411
 *   convert_config - Attempt to update config.xml.
412
 * DESCRIPTION
413
 *   convert_config() reads the current global configuration
414
 *   and attempts to convert it to conform to the latest
415
 *   config.xml version. This allows major formatting changes
416
 *   to be made with a minimum of breakage.
417
 * RESULT
418
 *   null
419
 ******/
420
/* convert configuration, if necessary */
421
function convert_config() {
422
	global $config, $g;
423
	$now = date("H:i:s");
424
	log_error(sprintf(gettext("Start Configuration upgrade at %s, set execution timeout to 15 minutes"), $now));
425
	//ini_set("max_execution_time", "900");
426

    
427
	/* special case upgrades */
428
	/* fix every minute crontab bogons entry */
429
	if (is_array($config['cron'])) {
430
		$cron_item_count = count($config['cron']['item']);
431
		for ($x = 0; $x < $cron_item_count; $x++) {
432
			if (stristr($config['cron']['item'][$x]['command'], "rc.update_bogons.sh")) {
433
				if ($config['cron']['item'][$x]['hour'] == "*") {
434
					$config['cron']['item'][$x]['hour'] = "3";
435
					write_config(gettext("Updated bogon update frequency to 3am"));
436
					log_error(gettext("Updated bogon update frequency to 3am"));
437
				}
438
			}
439
		}
440
	}
441
	if ($config['version'] == $g['latest_config']) {
442
		return;		/* already at latest version */
443
	}
444

    
445
	// Save off config version
446
	$prev_version = $config['version'];
447

    
448
	include_once('auth.inc');
449
	include_once('upgrade_config.inc');
450
	if (file_exists("/etc/inc/upgrade_config_custom.inc")) {
451
		include_once("upgrade_config_custom.inc");
452
	}
453
	/* Loop and run upgrade_VER_to_VER() until we're at current version */
454
	while ($config['version'] < $g['latest_config']) {
455
		$cur = $config['version'] * 10;
456
		$next = $cur + 1;
457
		$migration_function = sprintf('upgrade_%03d_to_%03d', $cur, $next);
458
		if (function_exists($migration_function)) {
459
			$migration_function();
460
		}
461
		$migration_function = "{$migration_function}_custom";
462
		if (function_exists($migration_function)) {
463
			$migration_function();
464
		}
465
		$config['version'] = sprintf('%.1f', $next / 10);
466
		if (platform_booting()) {
467
			echo ".";
468
		}
469
	}
470

    
471
	$now = date("H:i:s");
472
	log_error(sprintf(gettext("Ended Configuration upgrade at %s"), $now));
473

    
474
	if ($prev_version != $config['version']) {
475
		write_config(sprintf(gettext('Upgraded config version level from %1$s to %2$s'), $prev_version, $config['version']));
476
	}
477
}
478

    
479
/****f* config/safe_write_file
480
 * NAME
481
 *   safe_write_file - Write a file out atomically
482
 * DESCRIPTION
483
 *   safe_write_file() Writes a file out atomically by first writing to a
484
 *   temporary file of the same name but ending with the pid of the current
485
 *   process, them renaming the temporary file over the original.
486
 * INPUTS
487
 *   $filename  - string containing the filename of the file to write
488
 *   $content   - string containing the file content to write to file
489
 *   $force_binary      - boolean denoting whether we should force binary
490
 *   mode writing.
491
 * RESULT
492
 *   boolean - true if successful, false if not
493
 ******/
494
function safe_write_file($file, $content, $force_binary) {
495
	$tmp_file = $file . "." . getmypid();
496
	$write_mode = $force_binary ? "wb" : "w";
497

    
498
	$fd = fopen($tmp_file, $write_mode);
499
	if (!$fd) {
500
		// Unable to open temporary file for writing
501
		return false;
502
	}
503
	if (!fwrite($fd, $content)) {
504
		// Unable to write to temporary file
505
		fclose($fd);
506
		return false;
507
	}
508
	fflush($fd);
509
	fclose($fd);
510

    
511
	if (!pfSense_fsync($tmp_file) || !rename($tmp_file, $file)) {
512
		// Unable to move temporary file to original
513
		@unlink($tmp_file);
514
		return false;
515
	}
516

    
517
	// Sync file before returning
518
	return pfSense_fsync($file);
519
}
520

    
521
/****f* config/write_config
522
 * NAME
523
 *   write_config - Backup and write the firewall configuration.
524
 * DESCRIPTION
525
 *   write_config() handles backing up the current configuration,
526
 *   applying changes, and regenerating the configuration cache.
527
 * INPUTS
528
 *   $desc	- string containing the a description of configuration changes
529
 *   $backup	- boolean: do not back up current configuration if false.
530
 *   $write_config_only	- boolean: do not sync or reload anything; just save the configuration if true.
531
 * RESULT
532
 *   null
533
 ******/
534
/* save the system configuration */
535
function write_config($desc="Unknown", $backup = true, $write_config_only = false) {
536
	global $config, $g;
537

    
538
	if (!empty($_SERVER['REMOTE_ADDR'])) {
539
		if (!session_id()) {
540
			@session_start();
541
		}
542
		if (!empty($_SESSION['Username']) && ($_SESSION['Username'] != "admin")) {
543
			$user = getUserEntry($_SESSION['Username']);
544
			if (is_array($user) && userHasPrivilege($user, "user-config-readonly")) {
545
				session_commit();
546
				return false;
547
			}
548
		}
549
	}
550

    
551
	if (!isset($argc)) {
552
		session_commit();
553
	}
554

    
555
	if ($backup) {
556
		backup_config();
557
	}
558

    
559
	$config['revision'] = make_config_revision_entry($desc);
560

    
561
	conf_mount_rw();
562
	$lockkey = lock('config', LOCK_EX);
563

    
564
	/* generate configuration XML */
565
	$xmlconfig = dump_xml_config($config, $g['xml_rootobj']);
566

    
567
	/* write new configuration */
568
	if (!safe_write_file("{$g['cf_conf_path']}/config.xml", $xmlconfig, false)) {
569
		log_error(gettext("WARNING: Config contents could not be saved. Could not open file!"));
570
		unlock($lockkey);
571
		file_notice("config.xml", sprintf(gettext("Unable to open %s/config.xml for writing in write_config()%s"), $g['cf_conf_path'], "\n"));
572
		return -1;
573
	}
574

    
575
	cleanup_backupcache(true);
576

    
577
	/* re-read configuration */
578
	/* NOTE: We assume that the file can be parsed since we wrote it. */
579
	$config = parse_xml_config("{$g['conf_path']}/config.xml", $g['xml_rootobj']);
580
	if ($config == -1) {
581
		copy("{$g['conf_path']}/config.xml", "{$g['conf_path']}/config.xml.bad");
582
		$last_backup = discover_last_backup();
583
		if ($last_backup) {
584
			restore_backup("/cf/conf/backup/{$last_backup}");
585
			$config = parse_xml_config("{$g['conf_path']}/config.xml", $g['xml_rootobj']);
586
			if (platform_booting()) {
587
				echo "\n\n ************** WARNING **************";
588
				echo "\n\n Configuration could not be validated. A previous configuration was restored. \n";
589
				echo "\n The failed configuration file has been saved as {$g['conf_path']}/config.xml.bad \n\n";
590
			}
591
		} else {
592
			log_error(gettext("Could not restore config.xml."));
593
		}
594
	} else {
595
		generate_config_cache($config);
596
	}
597

    
598
	unlock($lockkey);
599

    
600
	if ($write_config_only) {
601
		/* tell kernel to sync fs data */
602
		conf_mount_ro();
603
		return $config;
604
	}
605

    
606
	unlink_if_exists("/usr/local/pkg/pf/carp_sync_client.php");
607

    
608
	/* tell kernel to sync fs data */
609
	conf_mount_ro();
610

    
611
	/* sync carp entries to other firewalls */
612
	carp_sync_client();
613

    
614
	if (is_dir("/usr/local/pkg/write_config")) {
615
		/* process packager manager custom rules */
616
		run_plugins("/usr/local/pkg/write_config/");
617
	}
618

    
619
	return $config;
620
}
621

    
622
/****f* config/reset_factory_defaults
623
 * NAME
624
 *   reset_factory_defaults - Reset the system to its default configuration.
625
 * RESULT
626
 *   integer	- indicates completion
627
 ******/
628
function reset_factory_defaults($lock = false, $reboot_required = true) {
629
	global $g;
630

    
631
	conf_mount_rw();
632

    
633
	/* Remove all additional packages */
634
	mwexec("/bin/sh /usr/local/sbin/{$g['product_name']}-upgrade " .
635
	    "-r ALL_PACKAGES");
636

    
637
	if (!$lock) {
638
		$lockkey = lock('config', LOCK_EX);
639
	}
640

    
641
	/* create conf directory, if necessary */
642
	safe_mkdir($g['cf_conf_path']);
643

    
644
	/* clear out /conf */
645
	$dh = opendir($g['conf_path']);
646
	while ($filename = readdir($dh)) {
647
		if (($filename != ".") && ($filename != "..") &&
648
		    (!is_dir($g['conf_path'] . "/" . $filename))) {
649
			unlink_if_exists($g['conf_path'] . "/" . $filename);
650
		}
651
	}
652
	closedir($dh);
653
	unlink_if_exists($g['tmp_path'] . "/config.cache");
654

    
655
	/* copy default configuration */
656
	copy("{$g['conf_default_path']}/config.xml",
657
	    "{$g['cf_conf_path']}/config.xml");
658

    
659
	disable_security_checks();
660

    
661
	/* call the wizard */
662
	if ($reboot_required) {
663
		// If we need a reboot first then touch a different trigger file.
664
		touch("/conf/trigger_initial_wizard_after_reboot");
665
	} else {
666
		touch("/conf/trigger_initial_wizard");
667
	}
668
	if (!$lock) {
669
		unlock($lockkey);
670
	}
671
	conf_mount_ro();
672
	setup_serial_port();
673
	return 0;
674
}
675

    
676
function config_restore($conffile) {
677
	global $config, $g;
678

    
679
	if (!file_exists($conffile)) {
680
		return 1;
681
	}
682

    
683
	backup_config();
684

    
685
	conf_mount_rw();
686

    
687
	$lockkey = lock('config', LOCK_EX);
688

    
689
	unlink_if_exists("{$g['tmp_path']}/config.cache");
690
	copy($conffile, "{$g['cf_conf_path']}/config.xml");
691

    
692
	disable_security_checks();
693

    
694
	unlock($lockkey);
695

    
696
	$config = parse_config(true);
697

    
698
	conf_mount_ro();
699

    
700
	write_config(sprintf(gettext("Reverted to %s."), array_pop(explode("/", $conffile))), false);
701

    
702
	return 0;
703
}
704

    
705
function config_install($conffile) {
706
	global $config, $g;
707

    
708
	if (!file_exists($conffile)) {
709
		return 1;
710
	}
711

    
712
	if (!config_validate("{$conffile}")) {
713
		return 1;
714
	}
715

    
716
	if (platform_booting()) {
717
		echo gettext("Installing configuration...") . "\n";
718
	} else {
719
		log_error(gettext("Installing configuration ...."));
720
	}
721

    
722
	conf_mount_rw();
723
	$lockkey = lock('config', LOCK_EX);
724

    
725
	copy($conffile, "{$g['conf_path']}/config.xml");
726

    
727
	disable_security_checks();
728

    
729
	/* unlink cache file if it exists */
730
	if (file_exists("{$g['tmp_path']}/config.cache")) {
731
		unlink("{$g['tmp_path']}/config.cache");
732
	}
733

    
734
	unlock($lockkey);
735
	conf_mount_ro();
736

    
737
	return 0;
738
}
739

    
740
/*
741
 * Disable security checks for DNS rebind and HTTP referrer until next time
742
 * they pass (or reboot), to aid in preventing accidental lockout when
743
 * restoring settings like hostname, domain, IP addresses, and settings
744
 * related to the DNS rebind and HTTP referrer checks.
745
 * Intended for use when restoring a configuration or directly
746
 * modifying config.xml without an unconditional reboot.
747
 */
748
function disable_security_checks() {
749
	global $g;
750
	touch("{$g['tmp_path']}/disable_security_checks");
751
}
752

    
753
/* Restores security checks.  Should be called after all succeed. */
754
function restore_security_checks() {
755
	global $g;
756
	unlink_if_exists("{$g['tmp_path']}/disable_security_checks");
757
}
758

    
759
/* Returns status of security check temporary disable. */
760
function security_checks_disabled() {
761
	global $g;
762
	return file_exists("{$g['tmp_path']}/disable_security_checks");
763
}
764

    
765
function config_validate($conffile) {
766

    
767
	global $g, $xmlerr;
768

    
769
	$xml_parser = xml_parser_create();
770

    
771
	if (!($fp = fopen($conffile, "r"))) {
772
		$xmlerr = gettext("XML error: unable to open file");
773
		return false;
774
	}
775

    
776
	while ($data = fread($fp, 4096)) {
777
		if (!xml_parse($xml_parser, $data, feof($fp))) {
778
			$xmlerr = sprintf(gettext('%1$s at line %2$d'),
779
						xml_error_string(xml_get_error_code($xml_parser)),
780
						xml_get_current_line_number($xml_parser));
781
			return false;
782
		}
783
	}
784
	xml_parser_free($xml_parser);
785

    
786
	fclose($fp);
787

    
788
	return true;
789
}
790

    
791
function cleanup_backupcache($lock = false) {
792
	global $config, $g;
793
	$i = false;
794

    
795
	$revisions = intval(is_numericint($config['system']['backupcount']) ? $config['system']['backupcount'] : $g['default_config_backup_count']);
796

    
797
	if (!$lock) {
798
		$lockkey = lock('config');
799
	}
800

    
801
	conf_mount_rw();
802

    
803
	$backups = get_backups();
804
	if ($backups) {
805
		$baktimes = $backups['versions'];
806
		unset($backups['versions']);
807
	} else {
808
		$backups = array();
809
		$baktimes = array();
810
	}
811
	$newbaks = array();
812
	$bakfiles = glob($g['cf_conf_path'] . "/backup/config-*");
813
	$tocache = array();
814

    
815
	foreach ($bakfiles as $backup) { // Check for backups in the directory not represented in the cache.
816
		$backupsize = filesize($backup);
817
		if ($backupsize == 0) {
818
			unlink($backup);
819
			continue;
820
		}
821
		$backupexp = explode('-', $backup);
822
		$backupexp = explode('.', array_pop($backupexp));
823
		$tocheck = array_shift($backupexp);
824
		unset($backupexp);
825
		if (!in_array($tocheck, $baktimes)) {
826
			$i = true;
827
			if (platform_booting()) {
828
				echo ".";
829
			}
830
			$newxml = parse_xml_config($backup, array($g['xml_rootobj'], 'pfsense'));
831
			if ($newxml == "-1") {
832
				log_error(sprintf(gettext("The backup cache file %s is corrupted.  Unlinking."), $backup));
833
				unlink($backup);
834
				log_error(sprintf(gettext("The backup cache file %s is corrupted.  Unlinking."), $backup));
835
				continue;
836
			}
837
			if ($newxml['revision']['description'] == "") {
838
				$newxml['revision']['description'] = "Unknown";
839
			}
840
			if ($newxml['version'] == "") {
841
				$newxml['version'] = "?";
842
			}
843
			$tocache[$tocheck] = array('description' => $newxml['revision']['description'], 'version' => $newxml['version'], 'filesize' => $backupsize);
844
		}
845
	}
846
	foreach ($backups as $checkbak) {
847
		if (count(preg_grep('/' . $checkbak['time'] . '/i', $bakfiles)) != 0) {
848
			$newbaks[] = $checkbak;
849
		} else {
850
			$i = true;
851
			if (platform_booting()) print " " . $tocheck . "r";
852
		}
853
	}
854
	foreach ($newbaks as $todo) {
855
		$tocache[$todo['time']] = array('description' => $todo['description'], 'version' => $todo['version'], 'filesize' => $todo['filesize']);
856
	}
857
	if (is_int($revisions) and (count($tocache) > $revisions)) {
858
		$toslice = array_slice(array_keys($tocache), 0, $revisions);
859
		foreach ($toslice as $sliced) {
860
			$newcache[$sliced] = $tocache[$sliced];
861
		}
862
		foreach ($tocache as $version => $versioninfo) {
863
			if (!in_array($version, array_keys($newcache))) {
864
				unlink_if_exists($g['conf_path'] . '/backup/config-' . $version . '.xml');
865
			}
866
		}
867
		$tocache = $newcache;
868
	}
869
	$bakout = fopen($g['cf_conf_path'] . '/backup/backup.cache', "w");
870
	fwrite($bakout, serialize($tocache));
871
	fclose($bakout);
872
	pfSense_fsync("{$g['cf_conf_path']}/backup/backup.cache");
873
	conf_mount_ro();
874

    
875
	if (!$lock) {
876
		unlock($lockkey);
877
	}
878
}
879

    
880
function get_backups() {
881
	global $g;
882
	if (file_exists("{$g['cf_conf_path']}/backup/backup.cache")) {
883
		$confvers = unserialize(file_get_contents("{$g['cf_conf_path']}/backup/backup.cache"));
884
		$bakvers = array_keys($confvers);
885
		$toreturn = array();
886
		sort($bakvers);
887
		// 	$bakvers = array_reverse($bakvers);
888
		foreach (array_reverse($bakvers) as $bakver) {
889
			$toreturn[] = array('time' => $bakver, 'description' => $confvers[$bakver]['description'], 'version' => $confvers[$bakver]['version'], 'filesize' => $confvers[$bakver]['filesize']);
890
		}
891
	} else {
892
		return false;
893
	}
894
	$toreturn['versions'] = $bakvers;
895
	return $toreturn;
896
}
897

    
898
function backup_config() {
899
	global $config, $g;
900

    
901
	if ($g['platform'] == "cdrom") {
902
		return;
903
	}
904

    
905
	conf_mount_rw();
906

    
907
	/* Create backup directory if needed */
908
	safe_mkdir("{$g['cf_conf_path']}/backup");
909
	if ($config['revision']['time'] == "") {
910
		$baktime = 0;
911
	} else {
912
		$baktime = $config['revision']['time'];
913
	}
914

    
915
	if ($config['revision']['description'] == "") {
916
		$bakdesc = "Unknown";
917
	} else {
918
		$bakdesc = $config['revision']['description'];
919
	}
920

    
921
	$bakver = ($config['version'] == "") ? "?" : $config['version'];
922
	$bakfilename = $g['cf_conf_path'] . '/backup/config-' . $baktime . '.xml';
923
	copy($g['cf_conf_path'] . '/config.xml', $bakfilename);
924

    
925
	if (file_exists($g['cf_conf_path'] . '/backup/backup.cache')) {
926
		$backupcache = unserialize(file_get_contents($g['cf_conf_path'] . '/backup/backup.cache'));
927
	} else {
928
		$backupcache = array();
929
	}
930
	$backupcache[$baktime] = array('description' => $bakdesc, 'version' => $bakver, 'filesize' => filesize($bakfilename));
931
	$bakout = fopen($g['cf_conf_path'] . '/backup/backup.cache', "w");
932
	fwrite($bakout, serialize($backupcache));
933
	fclose($bakout);
934
	pfSense_fsync("{$g['cf_conf_path']}/backup/backup.cache");
935

    
936
	conf_mount_ro();
937

    
938
	return true;
939
}
940

    
941
function set_device_perms() {
942
	$devices = array(
943
		'pf' => array(
944
			'user' => 'root',
945
			'group' => 'proxy',
946
			'mode' => 0660),
947
		);
948

    
949
	foreach ($devices as $name => $attr) {
950
		$path = "/dev/$name";
951
		if (file_exists($path)) {
952
			chown($path, $attr['user']);
953
			chgrp($path, $attr['group']);
954
			chmod($path, $attr['mode']);
955
		}
956
	}
957
}
958

    
959
function get_config_user() {
960
	if (empty($_SESSION["Username"])) {
961
		$username = getenv("USER");
962
		if (empty($conuser) || $conuser == "root") {
963
			$username = "(system)";
964
		}
965
	} else {
966
		$username = $_SESSION["Username"];
967
	}
968

    
969
	if (!empty($_SERVER['REMOTE_ADDR'])) {
970
		$username .= '@' . $_SERVER['REMOTE_ADDR'];
971
	}
972

    
973
	return $username;
974
}
975

    
976
function make_config_revision_entry($desc = null, $override_user = null) {
977
	if (empty($override_user)) {
978
		$username = get_config_user();
979
	} else {
980
		$username = $override_user;
981
	}
982

    
983
	$revision = array();
984

    
985
	if (time() > mktime(0, 0, 0, 9, 1, 2004)) {     /* make sure the clock settings are plausible */
986
		$revision['time'] = time();
987
	}
988

    
989
	/* Log the running script so it's not entirely unlogged what changed */
990
	if ($desc == "Unknown") {
991
		$desc = sprintf(gettext("%s made unknown change"), $_SERVER['SCRIPT_NAME']);
992
	}
993
	if (!empty($desc)) {
994
		$revision['description'] = "{$username}: " . $desc;
995
	}
996
	$revision['username'] = $username;
997
	return $revision;
998
}
999

    
1000
function pfSense_clear_globals() {
1001
	global $config, $FilterIfList, $GatewaysList, $filterdns, $aliases, $aliastable;
1002

    
1003
	$error = error_get_last();
1004

    
1005
	if ($error !== NULL) {
1006
		if ($error['type'] == E_ERROR) {
1007
			$errorstr = "PHP ERROR: Type: {$error['type']}, File: {$error['file']}, Line: {$error['line']}, Message: {$error['message']}";
1008
			print($errorstr);
1009
			log_error($errorstr);
1010
		} else if ($error['type'] != E_NOTICE) {
1011
			$errorstr = "PHP WARNING: Type: {$error['type']}, File: {$error['file']}, Line: {$error['line']}, Message: {$error['message']}";
1012
			// XXX: comment out for now, should re-enable post-2.2
1013
			//print($errorstr);
1014
			//log_error($errorstr);
1015
		}
1016
	}
1017

    
1018
	if (isset($FilterIfList)) {
1019
		unset($FilterIfList);
1020
	}
1021

    
1022
	if (isset($GatewaysList)) {
1023
		unset($GatewaysList);
1024
	}
1025

    
1026
	/* Used for the hostname dns resolver */
1027
	if (isset($filterdns)) {
1028
		unset($filterdns);
1029
	}
1030

    
1031
	/* Used for aliases and interface macros */
1032
	if (isset($aliases)) {
1033
		unset($aliases);
1034
	}
1035
	if (isset($aliastable)) {
1036
		unset($aliastable);
1037
	}
1038

    
1039
	unset($config);
1040
}
1041

    
1042
register_shutdown_function('pfSense_clear_globals');
1043

    
1044
?>
(12-12/65)