netdev - Re: [PATCHv3] ipv6: Enable enough of the code to handle GSO when disabled.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 17 Oct 2012 17:50:36 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	Vlad Yasevich <vyasevic@...hat.com>, <netdev@...r.kernel.org>,
	<davem@...emloft.net>
Subject: Re: [PATCHv3] ipv6: Enable enough of the code to handle GSO when
 disabled.

On Wed, 2012-10-17 at 18:13 +0200, Eric Dumazet wrote:
> On Wed, 2012-10-17 at 11:46 -0400, Vlad Yasevich wrote:
> 
> > This patch attempts to solve this by enabling just enough code so GSO
> > is correctly processed.  However, I should point out that if IPv6 is
> > simply blacklisted or not built for the kernel, this problem will
> > still persist.
> 
> So I guess this should be done in a different way ?
> 
> We currently use a single structure (struct packet_type) to hold 
> pointers to different methods. (The .func() field, and the gso/gro
> stuff)
> 
> We probably need to split it in two parts, and make one part linked into
> kernel, even if CONFIG_IPV6=n, so that GRO/GSO is fully IPv4/IPv6
> functional.
[...]

Either that or make sure that we don't advertise IPv6 GSO when IPv6 is
disabled.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html