netdev - Re: Broken netlink ABI

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Message-ID: <1c46ecba-3e8f-0e04-6d0e-f2f5466de0bf@gmail.com>
Date:   Tue, 14 Nov 2017 12:32:53 -0700
From:   David Ahern <dsahern@...il.com>
To:     Jon Maloy <jon.maloy@...csson.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Cc:     "David Miller (davem@...emloft.net)" <davem@...emloft.net>
Subject: Re: Broken netlink ABI

On 11/14/17 12:19 PM, Jon Maloy wrote:
> commit 28033ae4e0f ("net: netlink: Update attr validation to require exact length for some types") breaks the netlink ABI.

It's not breaking the ABI; it's enforcing expected attributes based on
policy.

> 
> When I give the command:
> ~$ tipc node set addr 1.1.2
> 
> I get the following response:
> 
> error: Numerical result out of range
> Unable to get TIPC nl family id (module loaded?)
> error, message initialisation failed
> 

I'll take a look at tipc and get back to you.