firewalld/backport-fix-nm-release-NM-client-after-a-timeout.patch
2024-07-05 06:52:00 +00:00

62 lines
1.8 KiB
Diff

From eb76e2a80a43481da7a54ff784edf1c76651db96 Mon Sep 17 00:00:00 2001
From: Eric Garver <eric@garver.life>
Date: Wed, 22 Nov 2023 12:10:09 -0500
Subject: [PATCH] fix(nm): release NM client after a timeout
Conflict: NA
Reference: https://github.com/firewalld/firewalld/commit/eb76e2a80a43481da7a54ff784edf1c76651db96
libnm will accumulate a bunch of data, e.g. routes, that is irrelevant
to firewalld. To avoid unbound growth in memory we can destroy the
client and reinitialize it when we query NM.
Fixes: #1232
---
src/firewall/core/fw_nm.py | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/src/firewall/core/fw_nm.py b/src/firewall/core/fw_nm.py
index 0e38dd4..c1f8e1d 100644
--- a/src/firewall/core/fw_nm.py
+++ b/src/firewall/core/fw_nm.py
@@ -39,6 +39,7 @@ else:
except (ImportError, ValueError, GLib.Error):
_nm_imported = False
_nm_client = None
+_nm_client_timeout = None
from firewall import errors
from firewall.errors import FirewallError
@@ -61,9 +62,28 @@ def nm_get_client():
"""Returns the NM client object or None if the import of NM failed
@return NM.Client instance if import was successful, None otherwise
"""
+
+ def _release():
+ """
+ Release the client to avoid excess memory usage when libnm pushes
+ irrelevant (to firewalld) updates.
+ """
+ global _nm_client
+ global _nm_client_timeout
+ _nm_client = None
+ _nm_client_timeout = None
+
global _nm_client
+ global _nm_client_timeout
+
if not _nm_client:
_nm_client = NM.Client.new(None)
+ else:
+ # refresh timer
+ GLib.source_remove(_nm_client_timeout)
+
+ _nm_client_timeout = GLib.timeout_add_seconds(5, _release)
+
return _nm_client
def nm_get_zone_of_connection(connection):
--
2.33.0