:py:mod:`dissect.hypervisor.backup.xva`
=======================================

.. py:module:: dissect.hypervisor.backup.xva


Module Contents
---------------

Classes
~~~~~~~

.. autoapisummary::

   dissect.hypervisor.backup.xva.XVA
   dissect.hypervisor.backup.xva.XVAStream




Attributes
~~~~~~~~~~

.. autoapisummary::

   dissect.hypervisor.backup.xva.BLOCK_SIZE


.. py:data:: BLOCK_SIZE

   

.. py:class:: XVA(fh)


   XVA reader.

   XenCenter export format. Basically a tar file with "blocks" of 1MB.

   .. py:property:: ova


   .. py:method:: disks()


   .. py:method:: open(ref, verify=False)



.. py:class:: XVAStream(xva, ref, size, verify=False)


   Bases: :py:obj:`dissect.util.stream.AlignedStream`

   XVA stream.

   XenServer usually just streams an XVA file right into an output file, so our use-case requires a bit
   more trickery. We generally don't stream directly into an output file, but try to create a file-like
   object for other code to use.

   The numbers for the block files (weirdly) don't represent offsets. It's possible for a block file
   to be 0 sized, in which case you should "add" that block to the stream, and continue on to the next.
   The next block might have a number + 1 of what your current offset is, but it will still contain the
   data for that current offset. For this reason we build a lookup list with offsets.