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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Cong Wang <cwang@twopensource.com>,
	Eugene Yakubovich <eugene.yakubovich@coreos.com>,
	netdev <netdev@vger.kernel.org>
Subject: Re: new link failing on duplicate names in different namespaces
Date: Thu, 26 Feb 2015 15:40:33 +0100	[thread overview]
Message-ID: <54EF3061.3040504@6wind.com> (raw)
In-Reply-To: <87sidsok07.fsf@x220.int.ebiederm.org>

Le 26/02/2015 14:55, Eric W. Biederman a écrit :
[snip]
>
> We can not give the guarantee that a new network device will only live
> in and have a unique name in a single network namespace until we get
> rid of dev_change_net_namespace in the code.
In fact in case of IFLA_LINK_NETNSID, with Cong's patch, we will first check
that the name is unique in link_net and after dev_change_net_namespace() will
check that the name is also unique in the final net, else the command will fail
(and the device is not created).

  reply	other threads:[~2015-02-26 14:40 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-25  0:48 new link failing on duplicate names in different namespaces Eugene Yakubovich
2015-02-25 16:26 ` Nicolas Dichtel
2015-02-25 17:44   ` Eric W. Biederman
2015-02-26  5:29     ` Cong Wang
2015-02-26  5:56       ` Cong Wang
2015-02-26  9:14         ` Nicolas Dichtel
2015-02-26 13:55           ` Eric W. Biederman
2015-02-26 14:40             ` Nicolas Dichtel [this message]
2015-02-27  0:22           ` Cong Wang
2015-02-25 19:03   ` What are the intended semantics of IFLA_LINK_NETNSID? Eric W. Biederman
2015-02-26  5:07     ` Cong Wang
2015-02-26  8:55     ` Nicolas Dichtel
2015-02-26 13:48       ` Eric W. Biederman
2015-02-26 14:52         ` Nicolas Dichtel
2015-02-26 22:19           ` [PATCH net 1/2] net: Verify permission to dest_net in newlink Eric W. Biederman
2015-02-26 22:20             ` [PATCH net 2/2] net: Verify permission to link_net " Eric W. Biederman
2015-02-27  9:03               ` Nicolas Dichtel
2015-02-28 20:15               ` David Miller
2015-02-27  9:03             ` [PATCH net 1/2] net: Verify permission to dest_net " Nicolas Dichtel
2015-02-28 20:15             ` David Miller

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