netdev - Re: [PATCH iproute2 3/3] ip netns: Delete all netns

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Date:	Wed, 07 Jan 2015 14:40:51 -0500
From:	Brian Haley <brian.haley@...com>
To:	Vadim Kochan <vadim4j@...il.com>
CC:	netdev@...r.kernel.org
Subject: Re: [PATCH iproute2 3/3] ip netns: Delete all netns

On 01/07/2015 01:11 PM, Vadim Kochan wrote:
> On Wed, Jan 07, 2015 at 07:36:40PM +0200, Vadim Kochan wrote:
>> On Wed, Jan 07, 2015 at 10:44:24AM -0500, Brian Haley wrote:
>>> On 01/07/2015 06:04 AM, Vadim Kochan wrote:
>>>> From: Vadim Kochan <vadim4j@...il.com>
>>>>
>>>> Allow delete all namespace names by:
>>>>
>>>>     $ ip netns del all
>>>
>>> So I can still create a namespace called 'all', but can't exec in it or delete
>>> it independently with this change.  Perhaps you need to block that as well?
>>> Unless there's some other patch I'm missing?
>>>
>>> -Brian
>> Hm, I did not take it into account ...
>> I will look if I can find another way ...
>>
>> Thanks,
> 
> what about this ?
> 
>     $ ip netns exec / ip link
>     $ ip netns del /
> 
> so it make a sense to be as root directory of bound ns names in /var/run/netns/ ?
> what do you think ?

I think using / is confusing.  And something like -a[ll] as an option doesn't
seem right either.

Or you just trap the name "all" in the add case and don't allow it.

Just my opinion.

-Brian
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