netdev - Re: [PATCH net-next 3/8] vxlan: Always refresh FDB 'updated' time when learning is enabled

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <44a9513b-ad8c-43df-b4d8-969644c7cdeb@blackwall.org>
Date: Tue, 4 Feb 2025 18:37:02 +0200
From: Nikolay Aleksandrov <razor@...ckwall.org>
To: Ido Schimmel <idosch@...dia.com>, netdev@...r.kernel.org
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
 edumazet@...gle.com, andrew+netdev@...n.ch, horms@...nel.org,
 petrm@...dia.com
Subject: Re: [PATCH net-next 3/8] vxlan: Always refresh FDB 'updated' time
 when learning is enabled

On 2/4/25 16:55, Ido Schimmel wrote:
> Currently, when learning is enabled and a packet is received from the
> expected remote, the 'updated' field of the FDB entry is not refreshed.
> This will become a problem when we switch the VXLAN driver to age out
> entries based on the 'updated' field.
> 
> Solve this by always refreshing an FDB entry when we receive a packet
> with a matching source MAC address, regardless if it was received via
> the expected remote or not as it indicates the host is alive. This is
> consistent with the bridge driver's FDB.
> 
> Reviewed-by: Petr Machata <petrm@...dia.com>
> Signed-off-by: Ido Schimmel <idosch@...dia.com>
> ---
>  drivers/net/vxlan/vxlan_core.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 

Reviewed-by: Nikolay Aleksandrov <razor@...ckwall.org>