netdev - Re: [PATCH net-next] ipv4/fib: send RTM

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Message-ID: <07fcfd504148b3c721fda716ad0a549662708407.camel@redhat.com>
Date: Wed, 02 Aug 2023 11:06:51 +0200
From: Thomas Haller <thaller@...hat.com>
To: Ido Schimmel <idosch@...sch.org>, Hangbin Liu <liuhangbin@...il.com>
Cc: David Ahern <dsahern@...nel.org>, Stephen Hemminger
	 <stephen@...workplumber.org>, netdev@...r.kernel.org, "David S . Miller"
	 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski
	 <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH net-next] ipv4/fib: send RTM_DELROUTE notify when flush
 fib

On Sun, 2023-07-23 at 10:38 +0300, Ido Schimmel wrote:
> On Fri, Jul 21, 2023 at 01:46:13PM +0800, Hangbin Liu wrote:
> 
> 
> I assume NetworkManager already knows how to delete routes given
> RTM_DELLINK events. Can't it be taught to react to RTM_DELADDR events
> as
> well? Then this functionality will always work, regardless of the
> kernel
> version being used.
> 

Hi,

NetworkManager will already request a full dump of all routes, when an
address gets deleted.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/blob/1dff0156278594ab171b59885396cf95aff2af7f/src/libnm-platform/nm-linux-platform.c#L7437


Thomas