File NetworkManager-dont-renew-bridge-dhcp-if-no-mac... of Package NetworkManager

Overview Repositories Revisions Requests Users Attributes Meta

File NetworkManager-dont-renew-bridge-dhcp-if-no-mac-on-wakeup.patch of Package NetworkManager (Revision 0a3dec090fdf55dc1705b5ee8385eb56)

Currently displaying revision 0a3dec090fdf55dc1705b5ee8385eb56 , Show latest

From a32094e9f8845700c6037634614863d1cee1ff55 Mon Sep 17 00:00:00 2001
From: Jonathan Kang <jonathankang@gnome.org>
Date: Wed, 17 Jul 2024 21:06:45 +0800
Subject: [PATCH] manager: don't renew dhcp lease when software devices' MAC is
 empty

If a bridge device doesn't have a permanent MAC address, its MAC address
will change based on the attached ports. When suspending the system, all
slaves can be released, thus MAC address of the bridge interface changes
to 00:00:00:00:00:00. In such scenarios, if you resume the system,
NetworkManager tries to renew dhcp lease on the bridge interface with an
empty MAC address. Because its slaved ports haven't been attached yet.

Fix that in this commit.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1587
---
 src/core/nm-manager.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/nm-manager.c b/src/core/nm-manager.c
index e949ea1189..00aa58c23a 100644
--- a/src/core/nm-manager.c
+++ b/src/core/nm-manager.c
@@ -10,6 +10,7 @@
 
 #include <fcntl.h>
 #include <limits.h>
+#include <linux/if_ether.h>
 #include <stdlib.h>
 #include <sys/sendfile.h>
 #include <sys/stat.h>
@@ -7359,7 +7360,8 @@ do_sleep_wake(NMManager *self, gboolean sleeping_changed)
             guint               i;
 
             if (nm_device_is_software(device)
-                && !nm_device_get_unmanaged_flags(device, NM_UNMANAGED_SLEEPING)) {
+                && !nm_device_get_unmanaged_flags(device, NM_UNMANAGED_SLEEPING)
+                && !nm_utils_hwaddr_matches(nm_device_get_hw_address(device), -1, &nm_ether_addr_zero, ETH_ALEN)) {
                 /* DHCP leases of software devices could have gone stale
                  * so we need to renew them. */
                 nm_device_update_dynamic_ip_setup(device, "wake up");
-- 
2.45.2

Places

File NetworkManager-dont-renew-bridge-dhcp-if-no-mac-on-wakeup.patch of Package NetworkManager (Revision 0a3dec090fdf55dc1705b5ee8385eb56)

Places