function delete_static_route($id)
{
global $config, $a_routes, $changedesc_prefix;
if (!isset($a_routes[$id])) {
return;
}
$targets = array();
if (is_alias($a_routes[$id]['network'])) {
foreach (filter_expand_alias_array($a_routes[$id]['network']) as $tgt) {
if (is_ipaddrv4($tgt)) {
$tgt .= "/32";
} else {
if (is_ipaddrv6($tgt)) {
$tgt .= "/128";
}
}
if (!is_subnet($tgt)) {
continue;
}
$targets[] = $tgt;
}
} else {
$targets[] = $a_routes[$id]['network'];
}
foreach ($targets as $tgt) {
$family = is_subnetv6($tgt) ? "-inet6" : "-inet";
mwexec("/sbin/route delete {$family} " . escapeshellarg($tgt));
}
unset($targets);
}
$tgt .= "/32";
}
if (!is_subnet($tgt)) {
continue;
}
$new_targets[] = $tgt;
}
}
if (!isset($id)) {
$id = count($a_routes);
}
$oroute = $a_routes[$id];
if (!empty($oroute)) {
$old_targets = array();
if (is_alias($oroute['network'])) {
foreach (filter_expand_alias_array($oroute['network']) as $tgt) {
if (is_ipaddr($tgt)) {
$tgt .= "/32";
}
if (!is_subnet($tgt)) {
continue;
}
$old_targets[] = $tgt;
}
} else {
$old_targets[] = $oroute['network'];
}
}
$overlaps = array_intersect($current_targets, $new_targets);
$overlaps = array_diff($overlaps, $old_targets);
if (count($overlaps)) {
