netdev - Re: [PATCH net-next 2/9] rtnetlink: bridge: Use a different policy for MDB bulk delete

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Date: Mon, 18 Dec 2023 12:08:34 +0200
From: Nikolay Aleksandrov <razor@...ckwall.org>
To: Ido Schimmel <idosch@...dia.com>, netdev@...r.kernel.org,
 bridge@...ts.linux-foundation.org
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
 edumazet@...gle.com, roopa@...dia.com, petrm@...dia.com
Subject: Re: [PATCH net-next 2/9] rtnetlink: bridge: Use a different policy
 for MDB bulk delete

On 17/12/2023 10:32, Ido Schimmel wrote:
> For MDB bulk delete we will need to validate 'MDBA_SET_ENTRY'
> differently compared to regular delete. Specifically, allow the ifindex
> to be zero (in case not filtering on bridge port) and force the address
> to be zero as bulk delete based on address is not supported.
> 
> Do that by introducing a new policy and choosing the correct policy
> based on the presence of the 'NLM_F_BULK' flag in the netlink message
> header. Use nlmsg_parse() for strict validation.
> 
> Signed-off-by: Ido Schimmel <idosch@...dia.com>
> Reviewed-by: Petr Machata <petrm@...dia.com>
> ---
>   net/core/rtnetlink.c | 51 ++++++++++++++++++++++++++++++++++++++++++--
>   1 file changed, 49 insertions(+), 2 deletions(-)
> 

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