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interfaces.inc
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interfaces.inc
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<?php
/*
* Copyright (C) 2015-2024 Franco Fichtner <franco@opnsense.org>
* Copyright (C) 2004-2008 Scott Ullrich <sullrich@gmail.com>
* Copyright (C) 2008-2009 Ermal Luçi
* Copyright (C) 2005 Espen Johansen
* Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
require_once("interfaces.lib.inc");
/*
* converts a string like "a,b,c,d"
* into an array like array("a" => "b", "c" => "d")
*/
function explode_assoc($delimiter, $string)
{
$array = explode($delimiter, $string);
$result = array();
$numkeys = floor(count($array) / 2);
for ($i = 0; $i < $numkeys; $i += 1) {
$result[$array[$i * 2]] = $array[$i * 2 + 1];
}
return $result;
}
function return_hex_ipv4($ipv4)
{
if (!is_ipaddrv4($ipv4)) {
return false;
}
/* we need the hex form of the interface IPv4 address */
$ip4arr = explode(".", $ipv4);
return (sprintf("%02x%02x%02x%02x", $ip4arr[0], $ip4arr[1], $ip4arr[2], $ip4arr[3]));
}
function convert_ipv6_to_128bit($ipv6)
{
if (!is_ipaddrv6($ipv6)) {
return false;
}
$ip6prefix = Net_IPv6::uncompress($ipv6);
$ip6arr = explode(":", $ip6prefix);
/* binary presentation of the prefix for all 128 bits. */
$ip6prefixbin = "";
foreach ($ip6arr as $element) {
$ip6prefixbin .= sprintf("%016b", hexdec($element));
}
return $ip6prefixbin;
}
function convert_128bit_to_ipv6($ip6bin)
{
if (strlen($ip6bin) != 128) {
return false;
}
$ip6arr = array();
$ip6binarr = str_split($ip6bin, 16);
foreach ($ip6binarr as $binpart) {
$ip6arr[] = dechex(bindec($binpart));
}
$ip6addr = Net_IPv6::compress(implode(":", $ip6arr));
return $ip6addr;
}
function does_interface_exist($interface, $flag = 'all')
{
return !empty($interface) && in_array($interface, legacy_interface_listget($flag));
}
function interfaces_loopback_configure($verbose = false)
{
service_log('Configuring loopback interface...', $verbose);
legacy_interface_setaddress('lo0', '127.0.0.1');
interfaces_vips_configure('lo0');
legacy_interface_flags('lo0', 'up');
service_log("done.\n", $verbose);
}
function interfaces_vlan_priorities()
{
$priorities = array();
$priorities['1'] = gettext('Background (1, lowest)');
$priorities['0'] = gettext('Best Effort (0, default)');
$priorities['2'] = gettext('Excellent Effort (2)');
$priorities['3'] = gettext('Critical Applications (3)');
$priorities['4'] = gettext('Video (4)');
$priorities['5'] = gettext('Voice (5)');
$priorities['6'] = gettext('Internetwork Control (6)');
$priorities['7'] = gettext('Network Control (7, highest)');
return $priorities;
}
function interfaces_vlan_configure($verbose = false)
{
global $config;
if (!isset($config['vlans']['vlan'])) {
return;
}
service_log('Configuring VLAN interfaces...', $verbose);
/* XXX sorting vlans here on top of $config seems prone to further side effects */
// Handle QinQ dependencies by sorting list of vlans to create (first all vlans so we can stack QinQ on top)
usort($config['vlans']['vlan'], function ($a, $b) {
$aqinq = strpos($a['vlanif'], 'vlan') !== false ? 0 : 1;
$bqinq = strpos($b['vlanif'], 'vlan') !== false ? 0 : 1;
if ($aqinq === $bqinq) {
return $a['vlanif'] <=> $b['vlanif'];
} else {
return $aqinq <=> $bqinq;
}
});
/* requested vlan protocol, when the vlan has vlans as children, the 802.1ad (QinQ) proto should be used */
$all_parents = [];
foreach ($config['vlans']['vlan'] as $vlan) {
if (!in_array($vlan['vlanif'], $all_parents)) {
if (!isset($all_parents[$vlan['if']])) {
$all_parents[$vlan['if']] = 0;
}
$all_parents[$vlan['if']]++;
}
}
foreach ($config['vlans']['vlan'] as $vlan) {
if (empty($vlan['proto'])) {
$vlan['proto'] = empty($all_parents[$vlan['vlanif']]) ? '802.1q' : '802.1ad';
}
_interfaces_vlan_configure($vlan);
}
service_log("done.\n", $verbose);
}
function _interfaces_vlan_configure($vlan)
{
legacy_interface_flags($vlan['if'], 'up'); /* XXX overreach? */
/* destroy is a safety precaution, when configuring via api or gui this function should only be called on new vlans */
legacy_interface_destroy($vlan['vlanif']);
legacy_interface_create('vlan', $vlan['vlanif']);
legacy_vlan_tag($vlan['vlanif'], $vlan['if'], $vlan['tag'], $vlan['pcp'], $vlan['proto']);
legacy_interface_flags($vlan['vlanif'], 'up');
}
function interfaces_wlan_clone($device)
{
global $config;
foreach (array_keys(get_configured_interface_with_descr()) as $if) {
if (!isset($config['interfaces'][$if]['wireless'])) {
continue;
}
$realif = get_real_interface($if);
/* XXX 'if' check only required if parent is still embedded */
if ($device == $realif || $device == $config['interfaces'][$if]['if']) {
return _interfaces_wlan_clone($realif, $config['interfaces'][$if]);
}
}
if (isset($config['wireless']['clone'])) {
foreach ($config['wireless']['clone'] as $clone) {
if ($device == $clone['cloneif']) {
return _interfaces_wlan_clone($clone['cloneif'], $clone);
}
}
}
return null;
}
function interfaces_bridge_configure($device)
{
global $config;
if (!isset($config['bridges']['bridged'])) {
return null;
}
foreach ($config['bridges']['bridged'] as $bridge) {
if ($bridge['bridgeif'] == $device) {
return _interfaces_bridge_configure($bridge);
}
}
return null;
}
function _interfaces_bridge_configure($bridge)
{
$ret = $bridge['bridgeif'];
/* XXX avoid destroy/create */
legacy_interface_destroy($bridge['bridgeif']);
legacy_interface_create($bridge['bridgeif']);
$checklist = get_configured_interface_with_descr();
$members = [];
/* find all required members */
foreach (explode(',', $bridge['members'] ?? '') as $member) {
if (empty($checklist[$member])) {
/* ignores disabled ones */
continue;
}
$device = get_real_interface($member);
if (!does_interface_exist($device)) {
log_msg("Device {$bridge['bridgeif']} cannot attach non-existent member {$device}, skipping now.");
/* continue but mark this as failed for caller so they could retry */
$ret = null;
continue;
}
$members[$member] = $device;
}
/* calculate smaller mtu and enforce it */
$mtu = null;
foreach ($members as $member => $device) {
$opts = legacy_interface_stats($device);
if (!empty($opts['mtu']) && ($mtu == null || $opts['mtu'] < $mtu)) {
$mtu = $opts['mtu'];
}
}
mwexecf('/sbin/ifconfig %s inet6 %sauto_linklocal', [$bridge['bridgeif'], isset($bridge['linklocal']) ? '' : '-']);
/* add member interfaces to bridge */
foreach ($members as $member => $device) {
configure_interface_hardware($device);
legacy_interface_mtu($device, $mtu);
legacy_interface_flags($device, 'up');
legacy_bridge_member($bridge['bridgeif'], $device);
}
if (isset($bridge['enablestp'])) {
mwexecf('/sbin/ifconfig %s proto %s', [$bridge['bridgeif'], $bridge['proto']]);
if (!empty($bridge['stp'])) {
$stpifs = explode(',', $bridge['stp']);
foreach ($stpifs as $stpif) {
mwexecf('/sbin/ifconfig %s stp %s', [$bridge['bridgeif'], get_real_interface($stpif)]);
}
}
if (!empty($bridge['maxage'])) {
mwexec("/sbin/ifconfig {$bridge['bridgeif']} maxage " . escapeshellarg($bridge['maxage']));
}
if (!empty($bridge['fwdelay'])) {
mwexec("/sbin/ifconfig {$bridge['bridgeif']} fwddelay " . escapeshellarg($bridge['fwdelay']));
}
if (!empty($bridge['hellotime'])) {
mwexec("/sbin/ifconfig {$bridge['bridgeif']} hellotime " . escapeshellarg($bridge['hellotime']));
}
if (!empty($bridge['priority'])) {
mwexec("/sbin/ifconfig {$bridge['bridgeif']} priority " . escapeshellarg($bridge['priority']));
}
if (!empty($bridge['holdcnt'])) {
mwexec("/sbin/ifconfig {$bridge['bridgeif']} holdcnt " . escapeshellarg($bridge['holdcnt']));
}
if (!empty($bridge['ifpriority'])) {
$pconfig = explode(",", $bridge['ifpriority']);
$ifpriority = [];
foreach ($pconfig as $cfg) {
$embcfg = explode_assoc(":", $cfg);
foreach ($embcfg as $key => $value) {
$ifpriority[$key] = $value;
}
}
foreach ($ifpriority as $key => $value) {
$realif = get_real_interface($key);
mwexec("/sbin/ifconfig {$bridgeif} ifpriority {$realif} " . escapeshellarg($value));
}
}
if (!empty($bridge['ifpathcost'])) {
$pconfig = explode(",", $bridge['ifpathcost']);
$ifpathcost = [];
foreach ($pconfig as $cfg) {
$embcfg = explode_assoc(":", $cfg);
foreach ($embcfg as $key => $value) {
$ifpathcost[$key] = $value;
}
}
foreach ($ifpathcost as $key => $value) {
$realif = get_real_interface($key);
mwexec("/sbin/ifconfig {$bridgeif} ifpathcost {$realif} " . escapeshellarg($value));
}
}
}
if ($bridge['maxaddr'] != '') {
mwexec("/sbin/ifconfig {$bridge['bridgeif']} maxaddr " . escapeshellarg($bridge['maxaddr']));
}
if ($bridge['timeout'] != '') {
mwexec("/sbin/ifconfig {$bridge['bridgeif']} timeout " . escapeshellarg($bridge['timeout']));
}
if (!empty($bridge['span'])) {
$realif = get_real_interface($bridge['span']);
mwexec("/sbin/ifconfig {$bridge['bridgeif']} span {$realif}");
}
if (!empty($bridge['edge'])) {
$edgeifs = explode(',', $bridge['edge']);
foreach ($edgeifs as $edgeif) {
$realif = get_real_interface($edgeif);
mwexec("/sbin/ifconfig {$bridge['bridgeif']} edge {$realif}");
}
}
if (!empty($bridge['autoedge'])) {
$edgeifs = explode(',', $bridge['autoedge']);
foreach ($edgeifs as $edgeif) {
$realif = get_real_interface($edgeif);
mwexec("/sbin/ifconfig {$bridge['bridgeif']} -autoedge {$realif}");
}
}
if (!empty($bridge['ptp'])) {
$ptpifs = explode(',', $bridge['ptp']);
foreach ($ptpifs as $ptpif) {
$realif = get_real_interface($ptpif);
mwexec("/sbin/ifconfig {$bridge['bridgeif']} ptp {$realif}");
}
}
if (!empty($bridge['autoptp'])) {
$ptpifs = explode(',', $bridge['autoptp']);
foreach ($ptpifs as $ptpif) {
$realif = get_real_interface($ptpif);
mwexec("/sbin/ifconfig {$bridge['bridgeif']} -autoptp {$realif}");
}
}
if (!empty($bridge['static'])) {
$stickyifs = explode(',', $bridge['static']);
foreach ($stickyifs as $stickyif) {
$realif = get_real_interface($stickyif);
mwexec("/sbin/ifconfig {$bridge['bridgeif']} sticky {$realif}");
}
}
if (!empty($bridge['private'])) {
$privateifs = explode(',', $bridge['private']);
foreach ($privateifs as $privateif) {
$realif = get_real_interface($privateif);
mwexec("/sbin/ifconfig {$bridge['bridgeif']} private {$realif}");
}
}
legacy_interface_flags($bridge['bridgeif'], 'up');
return $ret;
}
function interfaces_lagg_configure($verbose = false)
{
global $config;
if (!isset($config['laggs']['lagg'])) {
return;
}
service_log('Configuring LAGG interfaces...', $verbose);
foreach ($config['laggs']['lagg'] as $lagg) {
_interfaces_lagg_configure($lagg);
}
service_log("done.\n", $verbose);
}
function _interfaces_lagg_configure($lagg)
{
if (empty($lagg['members'])) {
/* XXX really necessary? we would like our LAGG anyway */
log_msg("No members found on {$lagg['laggif']}", LOG_WARNING);
return;
}
$interface_stats = legacy_interfaces_details();
$members = explode(',', $lagg['members']);
if (!empty($lagg['primary_member'])) {
/* place primary member as first member */
$members = array_unique(array_merge([$lagg['primary_member']], $members));
}
if (empty($interface_stats[$lagg['laggif']])) {
legacy_interface_create($lagg['laggif']);
} else {
// Already configured, detach child interfaces before attempting to configure.
// Prevents vlans to loose parent.
if (!empty($interface_stats[$lagg['laggif']]['laggport'])) {
foreach (array_keys($interface_stats[$lagg['laggif']]['laggport']) as $laggport) {
mwexecf('/sbin/ifconfig %s -laggport %s', [$lagg['laggif'], $laggport]);
}
}
}
// determine mtu value to use, either the provided one for the lagg or smallest of its children
$mtu = null;
if (!empty($lagg['mtu'])) {
// mtu provided for lagg
$mtu = $lagg['mtu'];
} else {
// min() mtu of children
foreach ($members as $member) {
if (!empty($interface_stats[$member]['mtu']) && ($mtu == null || $interface_stats[$member]['mtu'] < $mtu)) {
$mtu = $interface_stats[$member]['mtu'];
}
}
}
foreach ($members as $member) {
if (!empty($interface_stats[$member])) {
/*
* XXX A LAGG does not allow to set the MTU on its ports individually
* so we would rather set the MTU on the LAGG after adding all ports.
* Thus we should avoid runtime entanglement of MTU of ports to find
* the smallest one since they already follow the LAGG setting despite
* showing something else in ifconfig and defaulting to 1500 from the
* LAGG side anyway.
*/
legacy_interface_mtu($member, $mtu);
configure_interface_hardware($member);
legacy_interface_flags($member, 'up');
mwexecf('/sbin/ifconfig %s laggport %s', [$lagg['laggif'], $member]);
}
}
mwexecf('/sbin/ifconfig %s laggproto %s', [$lagg['laggif'], $lagg['proto']]);
if (in_array($lagg['proto'], ['lacp', 'loadbalance'])) {
foreach (['lacp_fast_timeout', 'use_flowid', 'lacp_strict'] as $attr) {
$attr_proto = strpos($attr, 'lacp_') !== false ? 'lacp' : $lagg['proto'];
if (isset($lagg[$attr]) && $attr_proto == $lagg['proto']) {
mwexecf('/sbin/ifconfig %s %s%s', [$lagg['laggif'], empty($lagg[$attr]) ? '-' : '', $attr]);
}
}
$configured_hash = !empty($lagg['lagghash']) ? $lagg['lagghash'] : 'l2,l3,l4';
mwexecf('/sbin/ifconfig %s lagghash %s', [$lagg['laggif'], $configured_hash]);
}
legacy_interface_flags($lagg['laggif'], 'up');
}
function interfaces_gre_configure($device)
{
global $config;
if (!isset($config['gres']['gre'])) {
return null;
}
foreach ($config['gres']['gre'] as $gre) {
if ($gre['greif'] == $device) {
return _interfaces_gre_configure($gre);
}
}
return null;
}
function _interfaces_gre_configure($gre)
{
if (!does_interface_exist($gre['greif'])) {
/* Only create when not already there */
legacy_interface_create($gre['greif']);
}
$family = is_ipaddrv4($gre['remote-addr']) ? 'inet' : 'inet6';
if (!empty($gre['ipaddr'])) {
/* MVC splits content into if and ipaddr fields, legacy input stores the address in "if",
in which case get_interface_* will return an address when offered */
$local_addr = $gre['ipaddr'];
} elseif ($family == 'inet') {
$local_addr = get_interface_ip($gre['if']);
} else {
$local_addr = get_interface_ipv6($gre['if'], null, is_linklocal($gre['remote-addr']) ? 'scoped' : 'routed');
}
/* ensured device is there, but do not configure unless system is ready */
if (empty($local_addr)) {
log_msg("Device {$gre['greif']} missing required local address, skipping now.");
return null;
}
$remote_addr = $gre['remote-addr'] . (strpos($local_addr, '%') === false ? '' : '%' . explode('%', $local_addr)[1]);
mwexecf('/sbin/ifconfig %s %s tunnel %s %s', [$gre['greif'], $family, $local_addr, $remote_addr]);
if (is_ipaddrv6($gre['tunnel-local-addr']) || is_ipaddrv6($gre['tunnel-remote-addr'])) {
/* check if destination is local to source and if not we need the traditional point-to-point setup */
if ($gre['tunnel-remote-net'] != '128' && ip_in_subnet($gre['tunnel-remote-addr'], "{$gre['tunnel-local-addr']}/{$gre['tunnel-remote-net']}")) {
mwexecf('/sbin/ifconfig %s inet6 %s prefixlen %s', [
$gre['greif'],
$gre['tunnel-local-addr'],
$gre['tunnel-remote-net'],
]);
} else {
mwexecf('/sbin/ifconfig %s inet6 %s %s prefixlen 128', [
$gre['greif'],
$gre['tunnel-local-addr'],
$gre['tunnel-remote-addr'],
]);
}
} else {
mwexecf('/sbin/ifconfig %s inet6 ifdisabled', [$gre['greif']]);
mwexecf('/sbin/ifconfig %s %s %s netmask %s', [
$gre['greif'],
$gre['tunnel-local-addr'],
$gre['tunnel-remote-addr'],
gen_subnet_mask($gre['tunnel-remote-net']),
]);
}
legacy_interface_flags($gre['greif'], 'up');
/* XXX: write XXX_router file */
mwexecf('/usr/local/sbin/ifctl -i %s -%s -rd -a %s', [
$gre['greif'],
is_ipaddrv4($gre['tunnel-remote-addr']) ? '4' : '6',
$gre['tunnel-remote-addr'],
]);
return $gre['greif'];
}
function interfaces_gif_configure($device)
{
global $config;
if (!isset($config['gifs']['gif'])) {
return null;
}
foreach ($config['gifs']['gif'] as $gif) {
if ($gif['gifif'] == $device) {
return _interfaces_gif_configure($gif);
}
}
return null;
}
function _interfaces_gif_configure($gif)
{
if (!does_interface_exist($gif['gifif'])) {
/* Only create when not already there */
legacy_interface_create($gif['gifif']);
}
$interface = !empty($gif['if']) ? explode('_vip', $gif['if'])[0] : null;
$family = is_ipaddrv4($gif['remote-addr']) ? 'inet' : 'inet6';
/* XXX: remove routing part in 24.7 */
$remote_gw = null;
if (!empty($interface)) {
$remote_gw = (new \OPNsense\Routing\Gateways())->getInterfaceGateway($interface, $family);
if ($family == 'inet6' && is_linklocal($remote_gw) && strpos($remote_gw, '%') === false) {
$remote_gw .= '%' . get_real_interface($interface, 'inet6');
}
}
if ($family == 'inet') {
$local_addr = get_interface_ip(!empty($gif['ipaddr']) ? $gif['ipaddr'] : $gif['if']);
} else {
if (is_linklocal($gif['remote-addr'])) {
$local_addr = get_interface_ipv6(!empty($gif['ipaddr']) ? $gif['ipaddr'] : $gif['if'], null, 'scoped');
} else {
$local_addr = get_interface_ipv6(!empty($gif['ipaddr']) ? $gif['ipaddr'] : $gif['if'], null, 'routed');
}
}
/* ensured device is there, but do not configure unless system is ready */
if (empty($local_addr)) {
log_msg("Device {$gif['gifif']} missing required local address, skipping now.");
return null;
}
$remote_addr = $gif['remote-addr'] . (strpos($local_addr, '%') === false ? '' : '%' . explode('%', $local_addr)[1]);
mwexecf('/sbin/ifconfig %s %s tunnel %s %s', [$gif['gifif'], $family, $local_addr, $remote_addr]);
if (is_ipaddrv6($gif['tunnel-local-addr']) || is_ipaddrv6($gif['tunnel-remote-addr'])) {
/* check if destination is local to source and if not we need the traditional point-to-point setup */
if ($gif['tunnel-remote-net'] != '128' && ip_in_subnet($gif['tunnel-remote-addr'], "{$gif['tunnel-local-addr']}/{$gif['tunnel-remote-net']}")) {
mwexecf('/sbin/ifconfig %s inet6 %s prefixlen %s', [
$gif['gifif'],
$gif['tunnel-local-addr'],
$gif['tunnel-remote-net'],
]);
} else {
mwexecf('/sbin/ifconfig %s inet6 %s %s prefixlen 128', [
$gif['gifif'],
$gif['tunnel-local-addr'],
$gif['tunnel-remote-addr'],
]);
}
} else {
mwexecf('/sbin/ifconfig %s inet6 ifdisabled', [$gif['gifif']]);
mwexecf('/sbin/ifconfig %s %s %s netmask %s', [
$gif['gifif'],
$gif['tunnel-local-addr'],
$gif['tunnel-remote-addr'],
gen_subnet_mask($gif['tunnel-remote-net']),
]);
}
$flags = (empty($gif['link1']) ? "-" : "") . "link1 " . (empty($gif['link2']) ? "-" : "") . "link2";
legacy_interface_flags($gif['gifif'], $flags);
legacy_interface_flags($gif['gifif'], 'up');
/* XXX: remove below routing block in 24.7 */
if (!empty($remote_gw)) {
system_host_route($remote_addr, $remote_gw);
}
/* XXX: write XXX_router file */
mwexecf('/usr/local/sbin/ifctl -i %s -%s -rd -a %s', [
$gif['gifif'],
is_ipaddrv4($gif['tunnel-remote-addr']) ? '4' : '6',
$gif['tunnel-remote-addr'],
]);
return $gif['gifif'];
}
function interfaces_hardware($verbose = false)
{
service_log('Configuring hardware interfaces...', $verbose);
$intf_details = legacy_interfaces_details();
foreach (array_keys(get_interface_list()) as $device) {
configure_interface_hardware($device, $intf_details);
}
service_log("done.\n", $verbose);
}
function interfaces_configure($verbose = false)
{
$interfaces = [];
$devices = [];
foreach (plugins_devices() as $device) {
if (empty($device['function']) || empty($device['names'])) {
continue;
}
foreach (array_keys($device['names']) as $name) {
$devices[$name] = $device['function'];
}
}
/*
* Queues are set up to order interfaces according to their
* dependencies / requirements of devices or other interfaces.
* Some queues may overlap, but they are laid out in full to
* make sure that the configuration flow is as clean as possible.
* See individual notes in the queued handling below.
*/
$hardware = []; /* hardware devices */
$virtual = []; /* software devices */
$track6 = []; /* trackers without bridges */
$bridge = []; /* bridges that may be trackers, but not dhcp6c interfaces */
$dhcp6c = []; /* dhcp6c interfaces load last */
foreach (legacy_config_get_interfaces(['enable' => true, 'virtual' => false]) as $if => $ifcfg) {
/* XXX use this to figure out when bridges can be configured */
$interfaces[$if] = $ifcfg['if'];
if (!empty($devices[$ifcfg['if']]) && !strstr($ifcfg['if'], 'bridge')) {
$virtual[$ifcfg['if']] = $if;
continue;
}
$is_track6 = !empty($ifcfg['ipaddrv6']) && $ifcfg['ipaddrv6'] == 'track6';
if (!strstr($ifcfg['if'], 'bridge') && $is_track6) {
$track6[$ifcfg['if']] = $if;
continue;
}
$is_dhcp6c = !empty($ifcfg['ipaddrv6']) && ($ifcfg['ipaddrv6'] == 'dhcp6' || $ifcfg['ipaddrv6'] == 'slaac');
if (strstr($ifcfg['if'], 'bridge') && !$is_dhcp6c) {
$bridge[$ifcfg['if']] = $if;
continue;
} elseif ($is_dhcp6c) {
$dhcp6c[$ifcfg['if']] = $if;
continue;
}
$hardware[$ifcfg['if']] = $if;
}
interfaces_loopback_configure($verbose);
interfaces_lagg_configure($verbose);
interfaces_vlan_configure($verbose);
/* run through priority lists */
foreach ([$hardware, $virtual, $track6, $bridge, $dhcp6c] as $list) {
foreach ($list as $device => $if) {
/* pre-op: configuring the underlying device */
if (!empty($devices[$device])) {
/* XXX devices could depend on other devices */
log_msg("Device $device required for $if, configuring now");
call_user_func_array($devices[$device], [$device]);
unset($devices[$device]);
}
/* post-op: removing associated devices and current interface */
foreach (interface_configure($verbose, $if) as $loaded) {
if (!empty($devices[$loaded])) {
log_msg("Device $loaded loaded by $if, skipping now", LOG_INFO);
unset($devices[$loaded]);
} else {
log_msg("Device $loaded reloaded by $if, already skipped", LOG_INFO);
}
}
unset($interfaces[$if]);
}
}
/* last but not least start all unconfigured devices */
foreach ($devices as $name => $function) {
/* XXX devices could depend on other devices */
log_msg("Device $name is not assigned, configuring late");
call_user_func_array($function, [$name]);
}
}
function interface_vip_bring_down($vip)
{
$vipif = get_real_interface($vip['interface']);
switch ($vip['mode']) {
case 'proxyarp':
killbypid("/var/run/choparp_{$vipif}.pid");
break;
case 'ipalias':
case 'carp':
if (does_interface_exist($vipif)) {
legacy_interface_deladdress($vipif, $vip['subnet'], is_ipaddrv6($vip['subnet']) ? 6 : 4);
}
break;
default:
break;
}
}
function interface_reset($interface, $ifacecfg = false, $suspend = false)
{
global $config;
if (!isset($config['interfaces'][$interface]) || ($ifacecfg !== false && !is_array($ifacecfg))) {
return;
}
/*
* The function formerly known as interface_bring_down() is largely intact,
* but its purpose was split between different use cases that it could not
* handle correctly not being aware of the caller's requirements. Now we
* split between a suspend and reset mode in order to accomodate the need.
*/
if ($ifacecfg === false) {
$realif = get_real_interface($interface);
$realifv6 = get_real_interface($interface, "inet6");
$ifcfg = $config['interfaces'][$interface];
$ppps = isset($config['ppps']['ppp']) ? $config['ppps']['ppp'] : [];
} else {
$ifcfg = $ifacecfg['ifcfg'];
$ppps = $ifacecfg['ppps'];
/* When $ifacecfg is passed, it should contain the original interfaces */
$realif = $ifacecfg['ifcfg']['realif'];
$realifv6 = $ifacecfg['ifcfg']['realifv6'];
}
if (!$suspend) {
foreach (config_read_array('virtualip', 'vip') as $vip) {
if ($vip['interface'] == $interface) {
interface_vip_bring_down($vip);
}
}
}
/* cache ifconfig now that VIPs are handled */
$ifconfig_details = legacy_interfaces_details();
/*
* hostapd and wpa_supplicant do not need to be running when the
* interface is down. They will also use 100% CPU if running after
* the wireless clone gets deleted.
*/
if (isset($ifcfg['wireless'])) {
kill_wpasupplicant($realif);
kill_hostapd($realif);
}
$track6 = array_keys(link_interface_to_track6($interface));
if (count($track6)) {
/* bring down radvd and dhcp6 on these interfaces */
plugins_configure('dhcp', false, ['inet6', $track6]);
}
switch ($ifcfg['ipaddrv6'] ?? 'none') {
case 'slaac':
case 'dhcp6':
interface_dhcpv6_prepare($interface, $ifcfg, true);
killbypid('/var/run/dhcp6c.pid', 'HUP');
break;
case 'track6':
interface_track6_configure($interface, $ifcfg);
break;
default:
break;
}
if (!empty($ifcfg['ipaddrv6'])) {
if (!$suspend) {
interfaces_addresses_flush($realifv6, 6, $ifconfig_details);
} elseif (!is_ipaddrv6($ifcfg['ipaddrv6'])) {
/* edge case: bring down a primary GUA, but not a link-local */
list ($ip6) = _interfaces_primary_address6($interface, $ifconfig_details, false, false);
if (!empty($ip6)) {
mwexecf('/sbin/ifconfig %s inet6 %s delete', [$realifv6, $ip6]);
}
}
}
switch ($ifcfg['ipaddr'] ?? 'none') {
case 'dhcp':
killbypid("/var/run/dhclient.{$realif}.pid");
break;
default:
break;
}
if (!empty($ifcfg['ipaddr'])) {
if (!$suspend) {
interfaces_addresses_flush($realif, 4, $ifconfig_details);
} elseif (!is_ipaddrv4($ifcfg['ipaddr'])) {
/* dhclient will not flush its address ever so do it here */
list ($ip4) = interfaces_primary_address($interface, $ifconfig_details);
if (!empty($ip4)) {
mwexecf('/sbin/ifconfig %s delete %s', [$realif, $ip4]);
}
}
}
/* check reset of running PPP configuration inside function */
interface_ppps_reset($interface, $suspend, $ifcfg, $ppps);
/* clear stale state associated with this interface */
mwexecf('/usr/local/sbin/ifctl -4c -i %s', $realif);
mwexecf('/usr/local/sbin/ifctl -6c -i %s', $realifv6);
}
function interface_suspend($interface)
{
/*
* Suspend uses a subset of interface_reset() to avoid
* stripping all the static addresses already in use.
* This helps to retain routes and gateway information
* also relevant when reloading the packet filter for
* e.g. NAT rules generation.
*/
interface_reset($interface, false, true);
}
function interface_ppps_bound($interface, $family = null)
{
global $config;
$ifcfg = $config['interfaces'][$interface] ?? null;
$ppps = $config['ppps']['ppp'] ?? null;
$bound = false;
if (!interface_ppps_capable($ifcfg, $ppps)) {
return $bound;
}
$ipv4_mode = false;
$ipv6_mode = false;
switch ($ifcfg['ipaddr'] ?? 'none') {
case 'ppp':
case 'pppoe':
case 'pptp':
case 'l2tp':
$ipv4_mode = true;
break;
default:
break;
}
switch ($ifcfg['ipaddrv6'] ?? 'none') {
case 'dhcp6':
case 'pppoev6':
case 'slaac':
$ipv6_mode = true;
break;
default:
break;
}
if ($family == 4) {
/* use this to steer configuration based on newwanip event */
$bound = $ipv4_mode;
} elseif ($family == 6) {
/* use this to steer configuration based on newwanipv6 event */
$bound = !$ipv4_mode && $ipv6_mode;
} else {
/* use this to prevent doing any early setup in general */
$bound = $ipv4_mode || $ipv6_mode;
}
return $bound;
}
function interface_ppps_capable($ifcfg, $ppps)
{
if (empty($ifcfg) || empty($ppps)) {
return false;
}
foreach ($ppps as $ppp) {
if ($ifcfg['if'] == $ppp['if']) {
/* we only test for PPP capability that needs mpd5 */
return true;
}
}
return false;
}
function interface_ppps_hardware($device)
{
$devices = [$device];
foreach (config_read_array('ppps', 'ppp') as $ppp) {
if ($device == $ppp['if']) {
$devices = [];
foreach (explode(',', $ppp['ports']) as $port) {
/*
* XXX We only have get_real_interface() here because
* PPP may be assigned to an assigned interface! :(
*/
$devices[] = get_real_interface($port);
}
break;
}
}
return $devices;
}
function interface_ppps_reset($interface, $suspend, $ifcfg, $ppps)
{
if (!interface_ppps_capable($ifcfg, $ppps)) {
return;
}
foreach ($ppps as $ppp) {
if ($ifcfg['if'] == $ppp['if']) {
if (isset($ppp['ondemand']) && $suspend) {
configdp_run('interface reconfigure', [$interface], true);
} else {
killbypid("/var/run/{$ppp['type']}_{$interface}.pid");
}
break;
}
}
}
function interface_ppps_configure($interface)