linux-kernel - [PATCH] Notify userspace about bridge learning MAC on new port

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Message-ID: <7a31d9fe5bc9b65d4ffe6e03cbd2823f@fami-braun.de>
Date:	Mon, 15 Apr 2013 12:29:10 +0200
From:	michael-dev <michael-dev@...i-braun.de>
To:	<stephen@...workplumber.org>
Cc:	<davem@...emloft.net>, <netdev@...r.kernel.org>,
	<bridge@...ts.linux-foundation.org>,
	<linux-kernel@...r.kernel.org>, <projekt-wlan@....tu-ilmenau.de>
Subject: [PATCH] Notify userspace about bridge learning MAC on new port

Hi,

currently, the userspace is informed about the port the MAC is learned 
on a bridge and about the bridge removing the MAC from its forwarding 
table, but not when the MAC is learned on a different port. This is 
inconsistent and makes it difficult for applications to keep track of 
all MACs learned by a bridge on a subset of its ports.

Please find attached a patch that fixes this by sending an RTM_NEWNEIGH 
message when the forwarding destination port changes.

Regards,
  M. Braun
View attachment "999-make-bridge-notify-switched-port.diff" of type "text/plain" (1213 bytes)