From 05d6085f93df440fe5f8d0d06f63e7be6e9da4b4 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Sun, 13 Feb 2022 20:04:33 +0100
Subject: vyos.util: T4191: add new sysctl() helper function

(cherry picked from commit b40315b3c5051888f499961e63410e14c5d1bad7)
---
 python/vyos/util.py | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'python/vyos')

diff --git a/python/vyos/util.py b/python/vyos/util.py
index f2f302559..149deabc4 100644
--- a/python/vyos/util.py
+++ b/python/vyos/util.py
@@ -805,3 +805,12 @@ def boot_configuration_complete() -> bool:
     if os.path.isfile(config_status):
         return True
     return False
+
+def sysctl(name, value):
+    """ Change value via sysctl() - return True if changed, False otherwise """
+    tmp = cmd(f'sysctl {name}')
+    # last list index contains the actual value - only write if value differs
+    if tmp.split()[-1] != str(value):
+        call(f'sysctl -wq {name}={value}')
+        return True
+    return False
-- 
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