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Re: [Libguestfs] [PATCH v3 0/8] Windows BitLocker support.



On Fri, Oct 09, 2020 at 05:02:57PM +0200, Martin Kletzander wrote:
> Basically what I did was create a small disk, create one partition
> over the whole disk, then cryptsetup luksFormat the partition, open
> it and format it with a filesystem (without any LVM).  That is one
> of the things you were adding support for, but it is not limited to
> Windows Bitlocker setup, it can just as well be a custom setup when
> installing any Linux distro.
>
> Even after quite a bit of fighting, rebuilding the appliance and so
> on I did not manage for it to show up in the list-filesystems or
> even do a cryptsetup-open on the partition even though it uses an
> appliance built from git master with the patches applied.  But I'm
> quite sure I could've done something wrong, so if that works for
> you, that's enough.

There's something in the test suite that already does this, so

  $ make && make -C test-data check

should produce test-data/phony-guests/fedora-luks.img (see
test-data/phony-guests/make-fedora-img.pl for how).

This image can be opened:

  $ guestfish --ro -a test-data/phony-guests/fedora-luks.img -i 

  Enter key or passphrase ("/dev/sda2"): FEDORA

  Welcome to guestfish, the guest filesystem shell for
  editing virtual machine filesystems and disk images.

  Type: ‘help’ for help on commands
        ‘man’ to read the manual
        ‘quit’ to quit the shell

  Operating system: Fedora release 14 (Phony)
  /dev/VG/Root mounted on /
  /dev/sda1 mounted on /boot

  ><fs> list-devices 
  /dev/sda
  ><fs> list-partitions 
  /dev/sda1
  /dev/sda2
  ><fs> vfs-type /dev/sda2
  crypto_LUKS

However ...

> Still, since you cannot do the test for Bitlocker, my idea was that
> you could make the test for non-lvm parition encrypted by LUKS as
> that would check some of the other code.

... cryptsetup cannot create a new BitLocker disk, which is rather
unfortunate.  I created a BitLocker disk using Windows, and I'll
privately send you a link, but because of the cryptsetup problem
there's no way to automate this kind of test.

Rich.

-- 
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