From mboxrd@z Thu Jan  1 00:00:00 1970
From: yao zhao <yao.development@gmail.com>
Subject: Re: setns question
Date: Sat, 17 Mar 2012 22:16:33 -0400
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To: "Eric W. Biederman" <ebiederm@xmission.com>
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On Fri, Mar 16, 2012 at 7:36 PM, Eric W. Biederman
<ebiederm@xmission.com> wrote:
> yao zhao <yao.development@gmail.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 p=
id
>> yet.
>
> Correct. =A0I 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:
>> =A0 =A0 =A0ProcessA's uts =3D=3D ProcessB's uts
>> =A0 =A0 =A0ProcessA's ipc =3D=3D ProcessC's ipc
>> =A0 =A0 =A0ProcessA's net =3D=3D ProcessD's net
>
> Yes. =A0Even without setns that is supported.
>
> I suggest if you want more details you read the code.
>
Thanks Eric for your reply!
After 1 day source code reading I understood how network namespace is
implemented. It is excellent and it does what I need.

yao
> Eric