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From: Anonymous via the Cypherpunks Tonga Remailer  <nobody@cypherpunks.to>
To: linux-kernel@vger.kernel.org
Subject: ext3 on encrypted device mapper
Date: Thu,  2 Dec 2004 19:17:27 +0100 (CET)	[thread overview]
Message-ID: <20041202181727.5B50011643@mail.cypherpunks.to> (raw)


Hi,

i'm using a linux debian sarge on an encrypted root filesystem with linux 2.6.10-rc2 kernel.

Filesystem is encrypted using dmcrypt, the encryption framework working on top of the device mapper.

I deleted a file and immediatelly i attempted to recover it using debugfs.

Linux aaa 2.6.10-rc2 #1 Wed Dec 1 09:52:37 CET 2004 i686 GNU/Linux

aaa:~# df -k .
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/rootfs     8676440   5278584   2957108  65% /

aaa:~# debugfs /dev/mapper/rootfs
debugfs 1.35 (28-Feb-2004)
debugfs:  lsdel

aaa:~# strings /dev/mapper/rootfs
strings: Warning: '/dev/mapper/rootfs' is not an ordinary file

Unfortunatelly neither with debugfs neither with a rogue strings i can access data on the encrypted filesystem.

I think that device mapper should be modified to allow debugfs checking and to allow access on it like a tradional hard drive.

Regards

--aaa

             reply	other threads:[~2004-12-02 18:17 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-02 18:17 Anonymous via the Cypherpunks Tonga Remailer [this message]
2004-12-02 19:34 ` Andreas Dilger

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