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interfaces: loopback experiement

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To make interfaces_configure() side effect free
we need to gather all information in the new
interfaces_dependencies() so we can debug and
simplify bootup.

We don't expose the device to the pluggable
device code, but in principle make it pluggable
as interfaces_dependencies() is a good point to
anchor it now.
This commit is contained in:
Franco Fichtner
2026-09-06 10:14:42 +02:00
parent f9b24b852b
commit 1f34fdeb68
1 changed files with 16 additions and 4 deletions
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src/etc/inc/interfaces.inc
+16 -4
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@@ -80,13 +80,18 @@ function does_interface_exist($interface, $flag = 'all')
return !empty($interface) && in_array($interface, legacy_interface_listget($flag));
}
function _interfaces_loopback_configure($unused_but_required = null)
{
legacy_interface_setaddress('lo0', '127.0.0.1/8');
interfaces_vips_configure('lo0', null, false);
legacy_interface_flags('lo0', 'up');
}
function interfaces_loopback_configure($verbose = false)
{
service_log('Configuring loopback interface...', $verbose);
legacy_interface_setaddress('lo0', '127.0.0.1/8');
interfaces_vips_configure('lo0', null, false);
legacy_interface_flags('lo0', 'up');
_interfaces_loopback_configure();
service_log("done.\n", $verbose);
}
@@ -704,6 +709,9 @@ function interfaces_dependencies($plugins_devices = null)
'unassigned' => [], /* unassigned devices load last for historic reasons */
];
$queues['software'][] = $fill_data(['descr' => '(loopback)', 'if' => 'lo0', 'uuid' => null]);
$devices['lo0'] = '_interfaces_loopback_configure';
foreach (legacy_config_get_interfaces(['enable' => true, 'virtual' => false]) as $ifcfg) {
$is_dhcp6c = ($ifcfg['ipaddrv6'] ?? 'none') == 'dhcp6';
/* XXX assigned bridges (with IP configuration) are going away in FreeBSD 16 */
@@ -721,6 +729,11 @@ function interfaces_dependencies($plugins_devices = null)
continue;
}
if (str_starts_with($ifcfg['if'], 'lo')) {
$queues['loopback'][] = $fill_data($ifcfg);
continue;
}
/* check with plugged devices returned earlier */
if (!empty($devices[$ifcfg['if']])) {
$queues['software'][] = $fill_data($ifcfg);
@@ -752,7 +765,6 @@ function interfaces_configure($verbose = false)
*/
$devices = $deps['devices'];
interfaces_loopback_configure($verbose);
interfaces_lagg_configure($verbose);
foreach ($deps['queues'] as $list) {