netdev - Re: [PATCH net] diag: fix netlink API attributes

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Date:	Thu, 28 Nov 2013 16:38:16 +0000
From:	Thomas Graf <tgraf@...g.ch>
To:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH net] diag: fix netlink API attributes

On 11/28/13 at 02:57pm, Nicolas Dichtel wrote:
> The first netlink attribute (value 0) must always be defined as none/unspec.
> This is correctly done in inet_diag.h, but other diag interfaces are broken.
> 
> Libraries like libnl skip this kind of attributes, thus it's never reported to
> the application.
> 
> CC: Thomas Graf <tgraf@...g.ch>
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>

First of all, thanks for the notification Nicolas. I'll fix libnl to
pass through these attributes.

I think the fix you propose is no an option as it breaks backwards
compatiblity with existing user space. We cannot change the value
of existing attributes.
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