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

To: "Patrick McHardy" <kaber@xxxxxxxxx>
Subject: Re: [PATCH 00/26] IPVS: Add first IPv6 support to IPVS.
Cc: lvs-devel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx
From: "Julius Volz" <juliusv@xxxxxxxxxx>
Date: Wed, 11 Jun 2008 21:29:16 +0200
On Wed, Jun 11, 2008 at 9:10 PM, Patrick McHardy <kaber@xxxxxxxxx> wrote:
> Julius Volz wrote:
>> ipvsadm uses get/set-sockopts on a raw socket to pass commands and
>> structs (as defined in include/net/ip_vs.h) to the kernel. So the
>> passed structs have to match exactly between userspace and kernel. The
>> kernel ip_vs.h also includes a version number that is used to verify
>> that ipvsadm matches your kernel version.
> So they define an ABI, which means they must not be changed in
> incompabtible ways. The question is whether they are actually
> changed in incomaptible ways.

It is clearly laid out to be able to be changed over time, hence the
ipvsadm version check... I think this whole interface is quite an
exception though.


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