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

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Message-Id: <20150201.121948.998046471405758397.davem@davemloft.net>
Date:	Sun, 01 Feb 2015 12:19:48 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	dwmw2@...radead.org
Cc:	mst@...hat.com, herbert@...dor.apana.org.au,
	eric.dumazet@...il.com, jan.kiszka@...mens.com, paul.moore@...com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	qemu-devel@...gnu.org
Subject: Re: [PATCH] tun: orphan an skb on tx

From: David Woodhouse <dwmw2@...radead.org>
Date: Sun, 01 Feb 2015 13:33:50 +0000

> Of course, now I'm looking closely at the path these packets take to
> leave the box, it starts to offend me that they're being passed up to
> userspace just to encrypt them (as DTLS or ESP) and then send them back
> down to the kernel on a UDP socket. The kernel already knows how to
> {en,de}crypt ESP, and do the sequence number checking on incoming
> packets.

It's funny, I thought we had an IPSEC stack....
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