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system: figure out which sysctls are writeable

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This commit is contained in:
Franco Fichtner 2020-04-29 09:21:01 +02:00
parent 25e46b988d
commit 10b4bbfe8d
1 changed files with 18 additions and 14 deletions
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32
src/etc/inc/util.inc
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@ -1,7 +1,7 @@
<?php
/*
* Copyright (C) 2014-2019 Franco Fichtner <franco@opnsense.org>
* Copyright (C) 2014-2020 Franco Fichtner <franco@opnsense.org>
* Copyright (C) 2010 Ermal Luçi
* Copyright (C) 2005-2006 Colin Smith <ethethlay@gmail.com>
* Copyright (C) 2004-2007 Scott Ullrich <sullrich@gmail.com>
@ -1297,25 +1297,29 @@ function set_sysctl($values)
return array();
}
$sysctls = null;
exec('/sbin/sysctl -WaN', $list, $success);
if ($success == 0) {
$sysctls = $list;
}
$value_list = array();
foreach ($values as $key => $value) {
if ($sysctls != null && !in_array($key, $sysctls)) {
continue;
}
$value_list[] = escapeshellarg($key) . "=" . escapeshellarg($value);
}
exec("/sbin/sysctl -i " . implode(" ", $value_list), $output, $success);
if (count($value_list)) {
exec('/sbin/sysctl ' . implode(' ', $value_list), $output);
/* Retry individually if failed (one or more read-only) */
if ($success != 0 && count($value_list) > 1) {
foreach ($value_list as $value) {
exec("/sbin/sysctl -i " . $value, $output);
}
}
$ret = array();
foreach ($output as $line) {
$line = explode(": ", $line, 2);
if (count($line) == 2) {
$ret[$line[0]] = true;
$ret = array();
foreach ($output as $line) {
$line = explode(": ", $line, 2);
if (count($line) == 2) {
$ret[$line[0]] = true;
}
}
}