netdev - Re: Adding IPv6 support to IPVS: some general questions about kernel development

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Date:	Mon, 31 Mar 2008 19:47:49 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Julius Volz <juliusv@...gle.com>
CC:	netdev@...r.kernel.org
Subject: Re: Adding IPv6 support to IPVS: some general questions about kernel
 development

Julius Volz wrote:
> I was redirected here from lvs-devel for a particular question. As
> part of an internship at Google, I am currently looking at porting the
> IPVS (IP virtual server) kernel part of LVS to support IPv6. First
> off, I am neither a real specialist in any of the involved areas yet
> (IPv6, load balancing) nor do I have much experience writing kernel
> code (mainly reading it for some time now), but I will try to learn as
> much as I can each day. Do expect lots of newbie questions though ;)
> 
> One question I had on lvs-devel that people here might know more
> about: IPVS is currently sitting at "net/ipv4/ipvs/..." in the kernel.
> A lot of this code would probably be the same for an IPv6 version, so
> the code would have to be refactored somehow and partially moved to a
> location where it can be used by both the IPv4 and IPv6 code. Are
> there any special rules for this and what do I have to think of? For
> example, could I just move the common code to a directory "net/ipvs"
> (or even all of the code, for both IPv4 and IPv6) or would people
> object?

net/ipvs or net/netfilter/ipvs sound fine. The second is probably
better since at some point we should try to merge the duplicated
conntrack functionality if possible.
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