netdev - Re: setns question

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Date:	Fri, 16 Mar 2012 16:36:40 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	yao zhao <yao.development@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: setns question

yao zhao <yao.development@...il.com> writes:

> Hi Eric,
>
> Can I ask some questions about setns?
>
> 1.setns is complete > 3.0 but right now it doesn't support mnt and pid
> yet.

Correct.  I need to find some time and get those patches merged.

> 2.setns can set a process' uts, net, ipc to different namespace, 

Yes.
> it is not fd based, right?
The argument to setns is a fd.

> 3.is this supported:
>      ProcessA's uts == ProcessB's uts
>      ProcessA's ipc == ProcessC's ipc
>      ProcessA's net == ProcessD's net

Yes.  Even without setns that is supported.

I suggest if you want more details you read the code.

Eric
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