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Re: [Qemu-devel] [PATCH] tun: orphan an skb on tx

From: David Woodhouse
Subject: Re: [Qemu-devel] [PATCH] tun: orphan an skb on tx
Date: Wed, 04 Feb 2015 06:35:13 +0000

On Tue, 2015-02-03 at 16:19 -0800, David Miller wrote:
> From: David Woodhouse <address@hidden>
> Date: Mon, 02 Feb 2015 07:27:10 +0000
> > I'm guessing you don't want to push the *whole* management of the TLS
> > control connection *and* the UDP transport, and probing the latter with
> > keepalives, into the kernel? I certainly don't :)
> Whilst Herbert Xu and I have discussed in the past supporting
> automatic SSL handling of socket data during socket writes in the
> kernel, doing TLS stuff would be a bit of a stretch :-)

Right. For the DTLS I was thinking we'd do the handshake in userspace
and then hand the UDP socket down. At that point it's basically the same
as ESP with the bytes in a slightly different place.

So I really am looking at an option for "here's a UDP socket to send
those tun packets out on, with <this> encryption setup" as the sanest
plan I can come up with.


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