From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH] iproute: disallow ip rule del without parameters
Date: Thu, 1 Sep 2016 09:05:40 -0700
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Cc: "Andrey Jr. Melnikov" <temnota.am@gmail.com>,
        Stephen Hemminger <shemminger@osdl.org>, netdev@vger.kernel.org
To: Michal Kubecek <mkubecek@suse.cz>
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On Tue, 30 Aug 2016 13:51:56 +0200
Michal Kubecek <mkubecek@suse.cz> wrote:

> On Mon, Aug 29, 2016 at 10:53:25AM -0700, Stephen Hemminger wrote:
> > On Wed, 24 Aug 2016 23:43:00 +0300
> > "Andrey Jr. Melnikov" <temnota.am@gmail.com> wrote:
> >   
> > > Disallow run `ip rule del` without any parameter to avoid delete any first
> > > rule from table.  
> ...
> > Actually ip rule delete without arguments deletes all rules.
> > Which could be a bug or feature depending on the user.
> > I can imagine somebody is doing something like deleting all rules
> > and putting in new ones for PBR.  
> 
> We have "ip rule flush" for that, don't we?
> 
> Michal Kubecek

I went ahead and applied this, seemed better to give error than deleting
all rules.