netdev - Re: [PATCH net 2/2] net: sched: also drop dst for the packets toward ingress in act

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Date:   Mon, 20 Sep 2021 11:34:33 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Xin Long <lucien.xin@...il.com>
Cc:     network dev <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Davide Caratti <dcaratti@...hat.com>,
        Hangbin Liu <liuhangbin@...il.com>
Subject: Re: [PATCH net 2/2] net: sched: also drop dst for the packets toward
 ingress in act_mirred

On Mon, Sep 20, 2021 at 7:12 AM Xin Long <lucien.xin@...il.com> wrote:
>
> Without dropping dst, the packets sent from local mirred/redirected
> to ingress will may still use the old dst. ip_rcv() will drop it as
> the old dst is for output and its .input is dst_discard.
>
> This patch is to fix by also dropping dst for those packets that are
> mirred or redirected to ingress in act_mirred.

Similar question: what about redirecting from ingress to egress?

BTW, please CC TC maintainers for TC patches.

Thanks.