netdev - Re: AF_PACKET mmap() v4...

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Message-ID: <20151108021958.GA39441@ast-mbp.thefacebook.com>
Date:	Sat, 7 Nov 2015 18:19:59 -0800
From:	Alexei Starovoitov <alexei.starovoitov@...il.com>
To:	Daniel Borkmann <daniel@...earbox.net>
Cc:	Arnd Bergmann <arnd@...db.de>, David Miller <davem@...emloft.net>,
	netdev@...r.kernel.org
Subject: Re: AF_PACKET mmap() v4...

On Thu, Nov 05, 2015 at 10:39:15AM +0100, Daniel Borkmann wrote:
> On 11/05/2015 10:07 AM, Arnd Bergmann wrote:
> >On Thursday 05 November 2015 00:04:14 David Miller wrote:
> >>As part of fixing y2038 problems, Arnd is going to have to make a new
> >>version fo the AF_PACKET mmap() tpacker descriptors in order to extend
> >>the time values to 64-bit.

would also be quite useful to add ability to attach metadata to packet
from bpf program.
Right now we can only trim the length. Would be great if program could
compute something and pass it along with packet as metadata.

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