Mapping Inode to File

Mapping Inode to File

[Artur Baruchi]

Hi Guys.

Is there a way to map an Inode number to a File (file path and name)
in a kernel module ?

Thanks,

Att.
Artur Baruchi

Re: Mapping Inode to File

[Bodo Eggert]

Artur Baruchi <mail.baruchi@gmail.com> wrote:

> Hi Guys.
> 
> Is there a way to map an Inode number to a File (file path and name)
> in a kernel module ?

Imagine this:

ln /foo/bar/baz /bar/baz/foo
sleep 2147483647 < /foo/bar/baz &
pivot_root /mnt /mnt/asd
chroot /mnt/asd/foo

What is the name you'd assign to that inode?

Re: Mapping Inode to File

[Artur Baruchi]

Sorry, didnt understand your point.

Could you please clarify?

Note that I need to retrieve the file name in Kernel Space, Im able to
get the inode, but now I need to convert this inode to a name
(something that I could use).

Thanks in advance.

Att.
Artur Baruchi

On Fri, Oct 22, 2010 at 12:51 PM, Bodo Eggert <7eggert@web.de> wrote:
> Artur Baruchi <mail.baruchi@gmail.com> wrote:
>
>> Hi Guys.
>>
>> Is there a way to map an Inode number to a File (file path and name)
>> in a kernel module ?
>
> Imagine this:
>
> ln /foo/bar/baz /bar/baz/foo
> sleep 2147483647 < /foo/bar/baz &
> pivot_root /mnt /mnt/asd
> chroot /mnt/asd/foo
>
> What is the name you'd assign to that inode?
>
>

Re: Mapping Inode to File

[Greg KH]

A: No.
Q: Should I include quotations after my reply?

http://daringfireball.net/2007/07/on_top

On Fri, Oct 22, 2010 at 02:09:44PM -0200, Artur Baruchi wrote:
> Sorry, didnt understand your point.
> 
> Could you please clarify?

The point is that, no, it's not simple to do this at all.

> Note that I need to retrieve the file name in Kernel Space, Im able to
> get the inode, but now I need to convert this inode to a name
> (something that I could use).

How about explaining why you need to get the file name from within the
kernel?  Perhaps there's a better way to do what you are trying to
accomplish.

thanks,

greg k-h