netdev - Re: [PATCH 00/26] IPVS: Add first IPv6 support to IPVS.

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Date:	Thu, 12 Jun 2008 17:34:04 +0200
From:	"Julius Volz" <juliusv@...gle.com>
To:	"Patrick McHardy" <kaber@...sh.net>
Cc:	"Simon Horman" <horms@...ge.net.au>,
	"Vince Busam" <vbusam@...gle.com>,
	"Ben Greear" <greearb@...delatech.com>, lvs-devel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH 00/26] IPVS: Add first IPv6 support to IPVS.

On Thu, Jun 12, 2008 at 3:38 PM, Patrick McHardy <kaber@...sh.net> wrote:
> Julius Volz wrote:
>>> I wonder if now would be a good time to bite the bullet and design
>>> a new interface that is extendable.
>>
>> If we really have to break it once for IPv6 anyways, it seems like a
>> good opportunity. Depends on how invasive the changes would need to
>> be, of course...
>
> You don't need to break the old interface, just add an additional
> one.

Ok, then we will just keep the old one in parallel for some time.

>> You probably already have some ideas on what a better interface would
>> look like? Especially, how to design it for future backwards
>> compatibility? And would it still use sockopts or rather one of the
>> other communication mechanisms?
>
> I'd suggest genetlink or nfnetlink.

Ah, that's what I thought... Are there any simple kernel examples with
userspace counterparts to look at? I know iproute2 uses netlink, but
it seems like a rather complicated example.

Genetlink seems especially nice, although I couldn't find a general
explanation of it other than in git history.

Julius

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