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Date: Tue, 17 Nov 2015 03:41:35 +0100
Message-ID: <CAHmME9oTU7HwP5=qo=aFWe0YXv5EPGoREpF2k-QY7qTmkDeXEA@mail.gmail.com>
Subject: Re: Routing loops & TTL tracking with tunnel devices
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Sowmini Varadhan <sowmini.varadhan@oracle.com>,
        Jiri Benc <jbenc@redhat.com>, David Miller <davem@davemloft.net>,
        Netdev <netdev@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>
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Hi Eric,

On Mon, Nov 16, 2015 at 11:28 PM, Eric Dumazet <eric.dumazet@gmail.com> wrote:
> There is very little chance we'll accept a new member in sk_buff, unless
> proven needed.

I actually have no intention of doing this! I'm wondering if there
already is a member in sk_buff that moonlights as my desired ttl
counter, or if there's another mechanism for avoiding routing loops. I
want to work with what's already there, rather than meddling with the
innards of important and memory sensitive structures such as sk_buff.
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