From 1011e64ad7d16e5f76f3e94fa4ff000a3741ce5e Mon Sep 17 00:00:00 2001
From: Andrew Dunham <andrew@du.nham.ca>
Date: Wed, 21 Dec 2022 11:56:14 -0500
Subject: [PATCH] wgengine/monitor: don't log unhandled RTM_{NEW,DEL}LINK
messages
These aren't handled, but it's not an error to get one.
Fixes #6806
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I1fcb9032ac36420aa72a048bf26f58360b9461f9
---
wgengine/monitor/monitor_linux.go | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/wgengine/monitor/monitor_linux.go b/wgengine/monitor/monitor_linux.go
index 9b490903b..376c90315 100644
--- a/wgengine/monitor/monitor_linux.go
+++ b/wgengine/monitor/monitor_linux.go
@@ -228,6 +228,10 @@ func (c *nlConn) Receive() (message, error) {
c.logf("%+v", rdm)
}
return rdm, nil
+ case unix.RTM_NEWLINK, unix.RTM_DELLINK:
+ // This is an unhandled message, but don't print an error.
+ // See https://github.com/tailscale/tailscale/issues/6806
+ return unspecifiedMessage{}, nil
default:
c.logf("unhandled netlink msg type %+v, %q", msg.Header, msg.Data)
return unspecifiedMessage{}, nil