* Wrapper File System
@ 2006-02-05 18:04 UZAIR LAKHANI
2006-02-05 18:26 ` Avishay Traeger
2006-02-06 22:14 ` Michael Thompson
0 siblings, 2 replies; 3+ messages in thread
From: UZAIR LAKHANI @ 2006-02-05 18:04 UTC (permalink / raw)
To: linux-fsdevel
Hello All,
I have to inquire how one can write a Wrapper file
system (fs) i.e. a fs that has under it a complete fs
and this wrapper fs only calls the functions of that
actual underlying fs.
The work I am doing this is through using path_lookup
function and getting the mount point dentry and super
block information.
I want to know what things I should know for writing
such a fs.
Uzair Lakhani
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Wrapper File System
2006-02-05 18:04 Wrapper File System UZAIR LAKHANI
@ 2006-02-05 18:26 ` Avishay Traeger
2006-02-06 22:14 ` Michael Thompson
1 sibling, 0 replies; 3+ messages in thread
From: Avishay Traeger @ 2006-02-05 18:26 UTC (permalink / raw)
To: UZAIR LAKHANI; +Cc: linux-fsdevel
On Sun, 2006-02-05 at 10:04 -0800, UZAIR LAKHANI wrote:
> I have to inquire how one can write a Wrapper file
> system (fs) i.e. a fs that has under it a complete fs
> and this wrapper fs only calls the functions of that
> actual underlying fs.
Something like wrapfs: http://www.filesystems.org/ ?
Avishay Traeger
http://www.fsl.cs.sunysb.edu/~avishay/
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Wrapper File System
2006-02-05 18:04 Wrapper File System UZAIR LAKHANI
2006-02-05 18:26 ` Avishay Traeger
@ 2006-02-06 22:14 ` Michael Thompson
1 sibling, 0 replies; 3+ messages in thread
From: Michael Thompson @ 2006-02-06 22:14 UTC (permalink / raw)
To: UZAIR LAKHANI; +Cc: linux-fsdevel
On 2/5/06, UZAIR LAKHANI <uzairr_bs1b@yahoo.com> wrote:
> Hello All,
>
> I have to inquire how one can write a Wrapper file
> system (fs) i.e. a fs that has under it a complete fs
> and this wrapper fs only calls the functions of that
> actual underlying fs.
Also known as a stacked filesystem (as one is stacked on another).
eCryptfs is one such filesytem, and it is modeled off of work done by
Erez Zadok, if I can find my links to his work, I'll post them, but
you can always google him for more information.
--
Michael C. Thompson <mcthomps@us.ibm.com>
Software-Engineer, IBM LTC Security
^ permalink raw reply [flat|nested] 3+ messages in thread
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2006-02-05 18:04 Wrapper File System UZAIR LAKHANI
2006-02-05 18:26 ` Avishay Traeger
2006-02-06 22:14 ` Michael Thompson
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