netdev - Re: IPsec workshop at netdev01?

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Message-ID: <20150106170026.GD11324@breakpoint.cc>
Date:	Tue, 6 Jan 2015 18:00:26 +0100
From:	Florian Westphal <fw@...len.de>
To:	Steffen Klassert <steffen.klassert@...unet.com>
Cc:	netdev@...r.kernel.org, Jamal Hadi Salim <jhs@...atatu.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	David Miller <davem@...emloft.net>
Subject: Re: IPsec workshop at netdev01?

Steffen Klassert <steffen.klassert@...unet.com> wrote:
> - We still lack a 32/64 bit compatibiltiy layer for IPsec, this issue
>   comes up from time to time. Some solutions were proposed in the past
>   but all had problems. The current behaviour is broken if someone tries
>   to configure IPsec with 32 bit tools on a 64 bit machine. Can we get
>   this right somehow or is it better to just return an error in this case?

FWIW I think
http://patchwork.ozlabs.org/patch/49465/

came closest to achieving full CONFIG_COMPAT support; since netlink is
no longer async now I'm not sure we'd still need additonal 32-compat syscalls
to make compat work for all cases.

So "its ugly as hell" is probably the only problem that is hard to avoid ;-)
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