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From: "Rémi Denis-Courmont" <remi@remlab.net>
To: "Eric W. Biederman" <ebiederm@xmission.com>,
	Linux Containers <containers@lists.osdl.org>
Cc: netdev@vger.kernel.org
Subject: Re: [ABI REVIEW][PATCH 0/8] Namespace file descriptors
Date: Wed, 29 Sep 2010 06:09:33 +0300	[thread overview]
Message-ID: <201009290609.33773.remi@remlab.net> (raw)
In-Reply-To: <m1ocborgq7.fsf@fess.ebiederm.org>

(Trimming To/Cc heavily)

   Hello,

On Thursday 23 September 2010, Eric W. Biederman wrote:
> Introduce file for manipulating namespaces and related syscalls.
> files:
> /proc/self/ns/<nstype>
> 
> syscalls:
> int setns(unsigned long nstype, int fd);
> socketat(int nsfd, int family, int type, int protocol);
> 
> Netlink attribute:
> IFLA_NS_FD int fd.

I have not reviewed the code, but that seems quite nice. At Nokia, we already 
use network namespaces to implement the Multimedia Message Service. 
Inconveniently enough, that is HTTP/TCP/IP in a dedicated IP namespace. 
Similarly, I expect this could be useful to implement the IMS, if/when mobile 
operators start using it (that does not mean Nokia will or will not do it).

Using netns, we avoided overlapping with the normal Internet connectivity. 
setns() would be much more convenient than fork()+unshare().

-- 
Rémi Denis-Courmont
http://www.remlab.net/

      parent reply	other threads:[~2010-09-29  3:09 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-23  8:45 [ABI REVIEW][PATCH 0/8] Namespace file descriptors Eric W. Biederman
2010-09-23  8:45 ` Eric W. Biederman
2010-09-23  8:46 ` [PATCH 1/8] ns: proc files for namespace naming policy Eric W. Biederman
2010-09-23  8:46   ` Eric W. Biederman
2010-09-23  8:46 ` [PATCH 2/8] ns: Introduce the setns syscall Eric W. Biederman
2010-09-23  8:46   ` Eric W. Biederman
2010-09-23  8:47 ` [PATCH 3/8] ns proc: Add support for the network namespace Eric W. Biederman
2010-09-23  8:47   ` Eric W. Biederman
2010-09-23 11:27   ` Louis Rilling
2010-09-23 16:00     ` Eric W. Biederman
2010-09-23  8:48 ` [PATCH 4/8] ns proc: Add support for the uts namespace Eric W. Biederman
2010-09-23  8:48   ` Eric W. Biederman
2010-09-23  8:49 ` [PATCH 5/8] ns proc: Add support for the ipc namespace Eric W. Biederman
2010-09-23  8:49   ` Eric W. Biederman
2010-09-23  8:50 ` [PATCH 6/8] ns proc: Add support for the mount namespace Eric W. Biederman
2010-09-23  8:50   ` Eric W. Biederman
     [not found] ` <m1ocborgq7.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2010-09-23  8:51   ` [PATCH 7/8] net: Allow setting the network namespace by fd Eric W. Biederman
2010-09-23  8:51     ` Eric W. Biederman
2010-09-23  8:51     ` Eric W. Biederman
2010-09-23  9:41     ` Eric Dumazet
2010-09-23  9:41       ` Eric Dumazet
2010-09-23 16:03       ` Eric W. Biederman
2010-09-23 16:03         ` Eric W. Biederman
2010-09-23 11:22     ` jamal
2010-09-23 14:58       ` David Lamparter
2010-09-24 11:51         ` jamal
2010-09-24 12:57           ` David Lamparter
2010-09-24 13:32             ` jamal
2010-09-24 14:09               ` David Lamparter
2010-09-24 14:16                 ` jamal
2010-09-23 15:14       ` Eric W. Biederman
2010-09-23 14:22     ` Brian Haley
2010-09-23 16:16       ` Eric W. Biederman
     [not found]     ` <m1hbhgq1v1.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2010-09-24 13:46       ` Daniel Lezcano
2010-09-24 13:46         ` Daniel Lezcano
2010-09-23  8:51   ` [PATCH 8/8] net: Implement socketat Eric W. Biederman
2010-09-23  8:51     ` Eric W. Biederman
2010-09-23  8:51     ` Eric W. Biederman
2010-09-23  8:56     ` Pavel Emelyanov
2010-09-23 11:19       ` jamal
2010-09-23 11:33         ` Pavel Emelyanov
     [not found]           ` <4C9B3B06.900-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2010-09-23 11:40             ` jamal
2010-09-23 11:40               ` jamal
2010-09-23 11:53               ` Pavel Emelyanov
2010-09-23 12:11                 ` jamal
2010-09-23 12:34                   ` Pavel Emelyanov
2010-09-23 12:34                     ` Pavel Emelyanov
2010-09-23 14:54                     ` David Lamparter
2010-09-23 15:00                     ` Eric W. Biederman
2010-10-02 21:13                 ` Daniel Lezcano
2010-10-03 13:44                   ` jamal
2010-10-04 10:13                     ` Daniel Lezcano
2010-10-04 19:07                     ` Eric W. Biederman
2010-10-15 12:30                     ` netns patches WAS( " jamal
2010-10-26 20:52                       ` jamal
2010-10-27  0:27                         ` Eric W. Biederman
2010-09-23 15:18 ` [ABI REVIEW][PATCH 0/8] Namespace file descriptors David Lamparter
2010-09-23 16:32   ` Eric W. Biederman
2010-09-23 16:49     ` David Lamparter
2010-09-24 13:02 ` Andrew Lutomirski
2010-09-24 13:49   ` Daniel Lezcano
2010-09-24 17:06     ` Eric W. Biederman
2010-09-29  3:09 ` Rémi Denis-Courmont [this message]

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