netdev - Re: [Patch net] wireguard: preserve skb->mark on ingress side

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Message-ID: <CAM_iQpVNP2+7F59-6NDhXfE7qxU6APNdBu5UxcWKMaow05kytA@mail.gmail.com>
Date:   Thu, 7 Oct 2021 13:55:54 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     Netdev <netdev@...r.kernel.org>,
        WireGuard mailing list <wireguard@...ts.zx2c4.com>,
        Cong Wang <cong.wang@...edance.com>,
        Peilin Ye <peilin.ye@...edance.com>
Subject: Re: [Patch net] wireguard: preserve skb->mark on ingress side

Hi, Jason

On Mon, Sep 27, 2021 at 8:27 PM Cong Wang <xiyou.wangcong@...il.com> wrote:
>
> On Mon, Sep 27, 2021 at 8:22 PM Jason A. Donenfeld <Jason@...c4.com> wrote:
> >
> > Hi Cong,
> >
> > I'm not so sure this makes sense, as the inner packet is in fact
> > totally different. If you want to distinguish the ingress interface,
>
> The contents are definitely different, but skb itself is the same.
>
> Please also take a look at other tunnels, they all preserve this
> in similar ways, that is, comparing net namespaces. Any reason
> why wireguard is so different from other tunnels?

Any response?

Thanks.