linux-kernel - Re: [PATCH V3 0/6] namespaces: log namespaces per task

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Date:	Wed, 20 Aug 2014 19:43:30 +0200
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	Richard Guy Briggs <rgb@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	linux-api@...r.kernel.org, containers@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org, linux-audit@...hat.com,
	serge@...lyn.com, netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH V3 0/6] namespaces: log namespaces per task

Le 20/08/2014 18:25, Richard Guy Briggs a écrit :
> On 14/08/19, Eric W. Biederman wrote:
>> Richard Guy Briggs <rgb@...hat.com> writes:
>>
>>> On 14/05/20, Richard Guy Briggs wrote:
>>>> On 14/05/20, Eric Paris wrote:
>>>>> On Tue, 2014-05-20 at 09:12 -0400, Richard Guy Briggs wrote:
>>>>>> The purpose is to track namespaces in use by logged processes from the
>>>>>> perspective of init_*_ns.
>>>
>>> (Including the Linux API list due to the additions to /proc/<pid>/ns/.
>>> Please see http://www.kernelhub.org/?p=2&msg=477668 and in particular
>>> http://www.kernelhub.org/?msg=477678&p=2 )
>>
>> Sigh if you have to use something like this use the proc inode
>> number.  It is the same thing.
>>
>> I hate to claim it is unique absent of the proc superblock but it is and
>> will be for the forseable future.
>>
>> It would be better to include the block device number that appears in
>> proc of 3h of the primary mount of to qualify the number.  But it is not
>> particularly important.  Coming up with an additional unique number that
>> needs to be maintained seems stronlgy silly.
>
> I am reading a contradiction here:
> 	https://www.redhat.com/archives/linux-audit/2013-March/msg00032.html
>
> and this posting went completely ignored:
> 	https://www.redhat.com/archives/linux-audit/2014-January/msg00180.html
>
> And then there was this patchset and thread where there was some good
> discussion to clarify the use case:
> 	https://lkml.org/lkml/2014/4/22/662
>
> Then V2:
> 	https://lkml.org/lkml/2014/5/9/637
>
> Then V3 3 months ago:
> 	https://www.redhat.com/archives/linux-audit/2014-May/msg00071.html
>
> I'm about to post another version of the patchset addressing Eric Paris'
> concerns about record types, field naming...
I also try to find a solution to identify netns in userland to solve
some network problems (see 
http://thread.gmane.org/gmane.linux.network/315933/focus=321753).

This serial number solution may be reused for this.
We really need to find a way to solve this.


Regards,
Nicolas
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