[PATCH] hald+LUKS v4

[W. Michael Petullo]

Attached you should find a more patch to add LUKS[1] support to hald.
This patch has the following differences vs. v3:

1.  Created against CVS tree as of 03/02/05.

2.  Removed some extraneous comments.

3.  Removed an unused variable.

4.  Increased VOLUME_ID_UUID_SIZE to 37 to accomodate UUID_DCE_UNPARSED.
UUID_DCE_UNPARSED is simply UUID_DCE with the dashes.  See e2fsprogs
man page uuid_unparse(3).  This is the format that LUKS uses.  So, in
this case, uuid = uuid_raw.

This should eventually provide an easy means to mount encrypted
filesystems.  Currently, hald only detects that a disk contains a LUKS
header and sets some relevant parameters.

The previous patch only enabled hald to recognize a partition encrypted
using LUKS.  This patch adds the detection of a dm-crypt device and the
proper identification of its filesystem.  This is based on the work
David Z. did for a previous version of hald.  This special code is
required because the kernel does not quite consider a dm-crypt device
as a first-class citizen in sysfs.

Here is a rough example of the using this code with a USB disk:

1.  Format the usb disk to contain an encrypted filesystem using LUKS.

2.  Attach the disk to the computer running hald.

3.  Hald should identify the disk as a LUKS disk.  One may confirm this
with "lshal | grep LUKS."

4.  Use the sesame-setup tool I am working on to create a dm-crypt
plaintext device node for the device: "sesame-setup /dev/sda1."

5.  Hald should identify the plaintext device node.  One may confirm
this with "lshal | grep dm."

Step 4 will be performed automatically in a GNOME session once
gnome-volume-manager is modified to recognize these volumes and prompt
for a passphrase.

Thanks.

-- 
Mike

:wq
_______________________________________________
hal mailing list
hal at lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/hal