pfSense

<?php

/*

 * globals.inc

 *

 * part of pfSense (https://www.pfsense.org)

 * Copyright (c) 2004-2013 BSD Perimeter

 * Copyright (c) 2013-2016 Electric Sheep Fencing

 * Copyright (c) 2014-2023 Rubicon Communications, LLC (Netgate)

 * All rights reserved.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

// Global defines

// Automatic panel collapse

define('COLLAPSIBLE', 0x08);

define('SEC_CLOSED', 0x04);

define('SEC_OPEN', 0x00);

// IP address types

define('IPV4', 4);

define('IPV6', 6);

define('IPV4V6', 2);

define('ALIAS', 1);

// Interface Name Size

define('IF_NAMESIZE', 15);	/* 16 minus the terminating NULL */

// AddPassword method defines

define('DMYPWD', '********');

// Captive Portal aliases prefix

define('CPPREFIX', 'cpzoneid_');

$version_file = '/etc/version';

$version_patch_file = $version_file . 'patch';

$product_version = rtrim(file_get_contents($version_file));

$present_year = date('Y');

global $g;

$g = [

	'acbbackuppath' => '/cf/conf/acb/',

	'event_address' => 'unix:///var/run/check_reload_status',

	'factory_shipped_username' => 'admin',

	'factory_shipped_password' => 'pfsense',

	'upload_path' => '/root',

	'dhcpd_chroot_path' => '/var/dhcpd',

	'unbound_chroot_path' => '/var/unbound',

	'var_path' => '/var',

	'varrun_path' => '/var/run',

	'varetc_path' => '/var/etc',

	'vardb_path' => '/var/db',

	'varlog_path' => '/var/log',

	'etc_path' => '/etc',

	'tmp_path' => '/tmp',

	'tmp_path_user_code' => '/tmp/user_code',

	'conf_path' => '/conf',

	'conf_default_path' => '/conf.default',

	'cf_path' => '/cf',

	'cf_conf_path' => '/cf/conf',

	'www_path' => '/usr/local/www',

	'xml_rootobj' => 'pfsense',

	'admin_group' => 'admins',

	'product_name' => 'pfSense',

	'product_label' => 'pfSense',

	'product_label_html' => 'Netgate pfSense<sup>&#174;</sup>',

	'product_version' => $product_version,

	'product_copyright_years' => '2004 - ' . $present_year,

	'disablehelpmenu' => false,

	'disablehelpicon' => false,

	'disablecrashreporter' => false,

	'debug' => false,

	'latest_config' => '22.9',

	'minimum_ram_warning' => '101',

	'minimum_ram_warning_text' => '128 MB',

	'wan_interface_name' => 'wan',

	'captiveportal_path' => '/usr/local/captiveportal',

	'captiveportal_element_path' => '/var/db/cpelements',

	'captiveportal_element_sizelimit' => 1048576,

	'captiveportal_rules_interval' => 50,

	'services_dhcp_server_enable' => true,

	'wireless_regex' => '/^(ath|athp|bwi|bwn|ipw|iwi|iwlwifi|iwm|iwn|malo|mwl|ral|rsu|rtwn|rum|run|uath|upgt|ural|urtw|urtwn|wi|wpi|wtap|zyd)[0-9]+/',

	'help_base_url' => '/help.php',

	'pkg_prefix' => 'pfSense-pkg-',

	'default_timezone' => 'Etc/UTC',

	'language' => 'en_US',

	'default_config_backup_count' => 30,

	'default_cert_expiredays' => 27,

	'default_log_entries' => 500,

	'default_log_size' => 512000,

	'minimumtableentries_bogonsv6' => 400000,

	'alternativemetaports' => ['vmware', 'php72', 'php73', 'php74'],

	'backuppath' => [

		'captiveportal' => '/var/db/captiveportal*.db',

		'dhcpd' => '/var/dhcpd/var/db/dhcpd.leases',

		'dhcpdv6' => '/var/dhcpd/var/db/dhcpd6.leases',

		'voucher' => '/var/db/voucher_*.db'

	],

	'cp_prefix' => 'cpzoneid',

	'booting' => false

];

/* IP TOS flags */

global $iptos;

$iptos = ['lowdelay', 'throughput', 'reliability'];

/* TCP flags */

global $tcpflags;

$tcpflags = ['syn', 'ack', 'fin', 'rst', 'psh', 'urg', 'ece', 'cwr'];

if (file_exists($version_patch_file)) {

	$g['product_version_patch'] = rtrim(file_get_contents($version_patch_file));

} else {

	$g['product_version_patch'] = '0';

}

$g['product_version_string'] = g_get('product_version');

if (is_numeric(g_get('product_version_patch')) && g_get('product_version_patch') != '0') {

	$g['product_version_string'] .= '-p'. g_get('product_version_patch');

}

$flavor_file = g_get('etc_path') . '/default-config-flavor';

if (file_exists($flavor_file)) {

	$flavor_array = file($flavor_file);

	$g['default-config-flavor'] = chop($flavor_array[0]);

} else {

	$g['default-config-flavor'] = '';

}

$g['openvpn_base'] = g_get('varetc_path') . '/openvpn';

/* Default sysctls */

global $sysctls;

$sysctls = [

	'net.inet.ip.portrange.first' => '1024',

	'net.inet.tcp.blackhole' => '2',

	'net.inet.udp.blackhole' => '1',

	'net.inet.ip.random_id' => '1',

	'net.inet.tcp.drop_synfin' => '1',

	'net.inet.ip.redirect' => '1',

	'net.inet6.ip6.redirect' => '1',

	'net.inet6.ip6.use_tempaddr' => '0',

	'net.inet6.ip6.prefer_tempaddr' => '0',

	'net.inet.tcp.syncookies' => '1',

	'net.inet.tcp.recvspace' => '65228',

	'net.inet.tcp.sendspace' => '65228',

	'net.inet.tcp.delayed_ack' => '0',

	'net.inet.udp.maxdgram' => '57344',

	'net.link.bridge.pfil_onlyip' => '0',

	'net.link.bridge.pfil_member' => '1',

	'net.link.bridge.pfil_bridge' => '0',

	'net.link.tap.user_open' => '1',

	'net.link.vlan.mtag_pcp' => '1',

	'kern.randompid' => '347',

	'net.inet.ip.intr_queue_maxlen' => '1000',

	'hw.syscons.kbd_reboot' => '0',

	'net.inet.tcp.log_debug' => '0',

	'net.inet.tcp.tso' => '1',

	'net.inet.icmp.icmplim' => '0',

	'vfs.read_max' => '32',

	'kern.ipc.maxsockbuf' => '4262144',

	'net.inet.ip.process_options' => 0,

	'kern.random.harvest.mask' => '351',

	'net.route.netisr_maxqlen' => 1024,

	'net.inet.udp.checksum' => 1,

	'net.inet.icmp.reply_from_interface' => 1,

	'net.inet6.ip6.rfc6204w3' => 1,

	'net.key.preferred_oldsa' => '0',

	'net.inet.carp.senderr_demotion_factor' => 0, /* Do not demote CARP for interface send errors */

	'net.pfsync.carp_demotion_factor' => 0, /* Do not demote CARP for pfsync errors */

	'net.raw.recvspace' => 65536,

	'net.raw.sendspace' => 65536,

	'net.inet.raw.recvspace' => 131072,

	'net.inet.raw.maxdgram' => 131072,

	'kern.corefile' => '/root/%N.core' /* Write all core files to /root/ so they do not consume space on other slices */

];

$machine_type = php_uname('m');

if (($machine_type == 'arm') || ($machine_type == 'arm64')) {

	$sysctls['kern.shutdown.secure_halt'] = 1;

}

/* Read all XML files in following dir and load menu entries */

$g['ext_menu_path'] = '/usr/local/share/'. g_get('product_name') . '/menu';

/* Cache file used to store pfSense version */

$g['version_cache_file'] = g_get('varrun_path') . '/' . g_get('product_name') . '_version';

$g['version_cache_refresh'] = 7200; /* 2h */

if (file_exists(g_get('cf_conf_path') . '/enableserial_force')) {

	$g['enableserial_force'] = true;

}

global $config_parsed;

$config_parsed = false;

/* Factory default check IP service. */

global $factory_default_checkipservice;

$factory_default_checkipservice = [

	'enable' => true,

	'name' => 'Default',

	'url' => 'http://checkip.dyndns.org',

	'descr' => 'Default Check IP Service',

];

global $dyndns_split_domain_types;

$dyndns_split_domain_types = ['namecheap', 'cloudflare', 'cloudflare-v6', 'gratisdns', 'cloudns', 'godaddy', 'godaddy-v6', 'linode', 'linode-v6'];

// pf tokens from FreeBSD source /sbin/pfctl/parse.y

global $pf_reserved_keywords;

$pf_reserved_keywords = [

	// Original tokens

	'all', 'allow-opts', 'altq', 'anchor', 'antispoof', 'any', 'bandwidth', 'binat', 'binat-anchor', 'bitmask',

	'block', 'block-policy', 'buckets', 'cbq', 'code', 'codelq', 'crop', 'debug', 'divert-reply', 'divert-to',

	'dnpipe', 'dnqueue', 'drop', 'drop-ovl', 'dup-to', 'ether', 'fail-policy', 'fairq', 'fastroute', 'file',

	'fingerprints', 'flags', 'floating', 'flush', 'for', 'fragment', 'from', 'global', 'group', 'hfsc', 'hogs',

	'hostid', 'icmp-type', 'icmp6-type', 'if-bound', 'in', 'include', 'inet', 'inet6', 'interval', 'keep',

	'keepcounters', 'l3', 'label', 'limit', 'linkshare', 'load', 'log', 'loginterface', 'map-e-portset', 'match',

	'max', 'max-mss', 'max-src-conn', 'max-src-conn-rate', 'max-src-nodes', 'max-src-states', 'min-ttl', 'modulate',

	'nat', 'nat-anchor', 'no', 'no-df', 'no-route', 'no-sync', 'on', 'optimization', 'os', 'out', 'overload',

	'pass', 'port', 'prio', 'priority', 'priq', 'probability', 'proto', 'qlimit', 'queue', 'quick', 'random',

	'random-id', 'rdr', 'rdr-anchor', 'realtime', 'reassemble', 'reply-to', 'require-order', 'return', 'return-icmp',

	'return-icmp6', 'return-rst', 'ridentifier', 'round-robin', 'route', 'route-to', 'rtable', 'rule',

	'ruleset-optimization', 'scrub', 'set', 'set-tos', 'skip', 'sloppy', 'source-hash', 'source-track', 'state',

	'state-defaults', 'state-policy', 'static-port', 'sticky-address', 'syncookies', 'synproxy', 'table', 'tag',

	'tagged', 'target', 'tbrsize', 'timeout', 'to', 'tos', 'ttl', 'upperlimit', 'urpf-failed', 'user',

	// Original tokens in fuzzy format

	'allowopts', 'binatanchor', 'blockpolicy', 'divertreply', 'divertto', 'duptoicmptype', 'icmp6type', 'ifboundmaxmss',

	'maxsrcconn', 'maxsrcconnrate', 'maxsrcnodes', 'maxsrcstates', 'minttl', 'natanchornodf', 'noroute', 'nosync',

	'randomidrdranchor', 'replyto', 'requireorderreturnicmp', 'returnicmp6', 'returnrstroundrobinrouteto',

	'ruleset_optimization', 'settos', 'sourcehash', 'sourcetrackstatedefaults', 'statepolicy', 'staticport',

	'stickyaddress', 'urpffailed', 'dropovl', 'failpolicy', 'mapeportset',

	// Custom tokens

	'arrow', 'codel', 'error', 'filename', 'fragcrop', 'fragdrop', 'IPsec', 'L2TP', 'maximummin', 'OpenVPN',

	'pppoe', 'pptp'

];

/* Reserved table names to avoid collision */

global $reserved_table_names;

$reserved_table_names = [

	'bogons',

	'bogonsv6',

	'negate_networks',

	'snort2c',

	'sshguard',

	'tonatsubnets',

	'virusprot',

	'vpn_networks',

];

/* VLAN Prio values. */

global $vlanprio_values;

$vlanprio_values = [

	'bk' => 0,

	'be' => 1,

	'ee' => 2,

	'ca' => 3,

	'vi' => 4,

	'vo' => 5,

	'ic' => 6,

	'nc' => 7,

];

global $vlanprio;

$vlanprio = [

	'bk' => 'Background (BK, 0)',

	'be' => 'Best Effort (BE, 1)',

	'ee' => 'Excellent Effort (EE, 2)',

	'ca' => 'Critical Applications (CA, 3)',

	'vi' => 'Video (VI, 4)',

	'vo' => 'Voice (VO, 5)',

	'ic' => 'Internetwork Control (IC, 6)',

	'nc' => 'Network Control (NC, 7)',

];

global $system_log_files;

$system_log_files = [

	'system', 'filter', 'dhcpd', 'vpn', 'poes', 'l2tps', 'openvpn',

	'portalauth', 'ipsec', 'ppp', 'wireless', 'nginx', 'ntpd', 'gateways',

	'resolver', 'routing', 'auth'

];

global $system_log_non_syslog_files;

$system_log_non_syslog_files = ['dmesg.boot', 'utx.log', 'userlog'];

global $system_log_compression_types;

$system_log_compression_types = [

	'bzip2' => [

			'flag' => 'J',

			'cat' => '/usr/bin/bzcat -qf',

			'ext' => 'bz2',

	],

	'gzip' => [

			'flag' => 'Z',

			'cat' => '/usr/bin/zcat -qf',

			'ext' => 'gz',

	],

	'xz' => [

			'flag' => 'X',

			'cat' => '/usr/bin/xzcat -qf',

			'ext' => 'xz',

	],

	'zstd' => [

			'flag' => 'Y',

			'cat' => '/usr/bin/zstdcat -qqf',

			'ext' => 'zst',

	],

	'none' => [

			'flag' => '',

			'cat' => '/bin/cat',

			'ext' => '',

	],

];

global $ddnsdomainkeyalgorithms;

$ddnsdomainkeyalgorithms = [

	'hmac-md5' => 'HMAC-MD5 (legacy default)',

	'hmac-sha1' => 'HMAC-SHA1',

	'hmac-sha224' => 'HMAC-SHA224',

	'hmac-sha256' => 'HMAC-SHA256 (current bind9 default)',

	'hmac-sha384' => 'HMAC-SHA384',

	'hmac-sha512' => 'HMAC-SHA512 (most secure)',

];

global $ipsec_filtermodes;

$ipsec_filtermodes = [

	'enc' => 'Filter IPsec Tunnel, Transport, and VTI on IPsec tab (enc0)',

	'if_ipsec' => 'Filter IPsec VTI and Transport on assigned interfaces, block all tunnel mode traffic',

];

global $ipsec_filter_sysctl;

$ipsec_filter_sysctl = [

	'enc' => [

		'net.inet.ipsec.filtertunnel'   => '0x0000',

		'net.inet6.ipsec6.filtertunnel' => '0x0000',

		'net.enc.out.ipsec_bpf_mask'    => '0x0001',

		'net.enc.out.ipsec_filter_mask' => '0x0001',

		'net.enc.in.ipsec_bpf_mask'     => '0x0002',

		'net.enc.in.ipsec_filter_mask'  => '0x0002',

	],

	'if_ipsec' => [

		'net.inet.ipsec.filtertunnel'   => '0x0001',

		'net.inet6.ipsec6.filtertunnel' => '0x0001',

		'net.enc.out.ipsec_bpf_mask'    => '0x0000',

		'net.enc.out.ipsec_filter_mask' => '0x0000',

		'net.enc.in.ipsec_bpf_mask'     => '0x0000',

		'net.enc.in.ipsec_filter_mask'  => '0x0000',

	],

];

global $vpn_and_ppp_ifs;

$vpn_and_ppp_ifs = ['l2tp', 'pppoe', 'enc0', 'openvpn'];

global $ssh_keys;

$ssh_keys = [

	['type' => 'rsa', 'suffix' => 'rsa_'],

	['type' => 'ed25519', 'suffix' => 'ed25519_'],

];

global $sshConfigDir;

$sshConfigDir = '/etc/ssh';

global $lagg_hash_list;

$lagg_hash_list = [

	'l2,l3,l4' => 'Layer 2/3/4 (default)',

	'l2' => 'Layer 2 (MAC Address)',

	'l3' => 'Layer 3 (IP Address)',

	'l4' => 'Layer 4 (Port Number)',

	'l2,l3' => 'Layer 2/3 (MAC + IP)',

	'l3,l4' => 'Layer 3/4 (IP + Port)',

	'l2,l4' => 'Layer 2/4 (MAC + Port)',

];

/**

 * Check if the global $g variable contains a $key

 *

 * @param string $key The key

 * @param bool $isset Also perform isset check

 *

 * @return bool

 */

function g_has(string $key, bool $isset = false) : bool

{

	global $g;

	return (array_key_exists($key, $g) && (!$isset || isset($g[$key])));

}

/**

 * Get the global $g variable value by $key

 *

 * @param string $key The key

 * @param mixed $default The value to return on a key miss

 *

 * @return mixed

 */

function g_get(string $key, mixed $default = null) : mixed

{

	global $g;

	return (g_has($key, true) ? $g[$key] : $default);

}

/**

 * Set the global $g variable value by $key

 *

 * @param string $key The key

 * @param mixed $value The value

 * @param bool $force Force set (can replace) the value

 *

 * @return mixed

 */

function g_set(string $key, mixed $value, bool $force = false) : mixed

{

	global $g;

	if ($force || !g_has($key, true)) {

		$g[$key] = $value;

	}

	return (g_get($key));

}

/**

 * Unset the global $g variable value by $key

 *

 * @param string $key The key

 *

 * @return void

 */

function g_unset(string $key) : void

{

	global $g;

	if (g_has($key)) {

		unset($g[$key]);

	}

}

/**

 * Determine if the system is currently booting

 *

 * @return bool

 */

function is_platform_booting() : bool

{

	return (g_get('booting', false) || file_exists(g_get('varrun_path') . '/booting'));

}

/**

 * Determine if PHP is executing in cli context

 *

 * @return bool

 */

function is_cli_sapi() : bool

{

	if (defined('STDIN')) {

		return (true);

	}

	if (PHP_SAPI === 'cli') {

		return (true);

	}

	if (array_key_exists('SHELL', $_ENV)) {

		return (true);

	}

	return (false);

}

/**

 * Determine if the system is booting

 *

 * @deprecated Prefer the use of is_platform_booting

 *

 * @param bool $only_on_console Require cli execution context

 *

 * @return bool

 */

function platform_booting(bool $only_on_console = false) : bool

{

	return (is_platform_booting() && (!$only_on_console || is_cli_sapi()));

}

/**

 * Check if a file can be included

 *

 * @param string $filename

 *

 * @return bool

 */

function can_include(string $filename) : bool

{

	// short-circuit on absolute paths before checking relative include paths

	return (file_exists($filename) || (bool) stream_resolve_include_path($filename));

}

// source pfSense Plus specific globals last

if (can_include('globals.plus.inc')) {

	include_once('globals.plus.inc');

}