ecryptfs-devel team mailing list archive
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ecryptfs-devel team
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Mailing list archive
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Message #00174
Re: [RFC][PATCH 0/7] File descriptor labeling
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To:
Roberto Sassu <roberto.sassu@xxxxxxxxx>
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From:
Casey Schaufler <casey@xxxxxxxxxxxxxxxx>
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Date:
Wed, 04 May 2011 10:42:37 -0700
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Cc:
bfields@xxxxxxxxxxxx, linux-nfs@xxxxxxxxxxxxxxx, kirkland@xxxxxxxxxxxxx, safford@xxxxxxxxxxxxxx, sds@xxxxxxxxxxxxx, Casey Schaufler <casey@xxxxxxxxxxxxxxxx>, apparmor@xxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, eparis@xxxxxxxxxx, jmorris@xxxxxxxxx, dhowells@xxxxxxxxxx, neilb@xxxxxxx, linux-security-module@xxxxxxxxxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, selinux@xxxxxxxxxxxxx, ecryptfs-devel@xxxxxxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, zohar@xxxxxxxxxxxxxxxxxx
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In-reply-to:
<201105041119.57493.roberto.sassu@polito.it>
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User-agent:
Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10
On 5/4/2011 2:19 AM, Roberto Sassu wrote:
> On Wednesday, May 04, 2011 12:58:48 AM Casey Schaufler wrote:
>> On 5/2/2011 1:53 AM, Roberto Sassu wrote:
>> ...
>>>> Right, but what I don't understand is why you can't use existing
>>>> mechanisms to achieve this? NFS manages (mostly).
>>> Please, can you explain better this thought?
>> NFS provides a network "view" of an ext4 (or any type for that matter)
>> filesystem. NFS does not support extended attributes, but there has been
>> ongoing work on that. It seems that if NFS does not require the kind
>> of changes you are requesting you shouldn't either.
> I'm not familiar with NFS, so i cannot answer about this scenario.
NFS provides the historical and prototypical example of a layered
filesystem. If you are implementing a layered filesystem and have
not researched NFS you are missing out on the bulk of the experience
and wisdom on the subject.
> I'm adding in CC also the NFS mantainers and the mailing list so
> that they can express their point of view. The whole thread is
> available at:
>
> https://lkml.org/lkml/2011/4/27/201
>
> Roberto Sassu
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