# -*- coding: utf-8 -*-
"""The Logical Volume Manager (LVM) volume system."""
from dfvfs.lib import definitions
from dfvfs.volume import factory
from dfvfs.volume import volume_system
[docs]class LVMVolume(volume_system.Volume):
"""Volume that uses pyvslvm."""
def __init__(self, file_entry):
"""Initializes a LVM volume.
Args:
file_entry (LVMFileEntry): a LVM file entry.
"""
super(LVMVolume, self).__init__(file_entry.name)
self._file_entry = file_entry
def _Parse(self):
"""Extracts attributes and extents from the volume."""
vslvm_logical_volume = self._file_entry.GetLVMLogicalVolume()
volume_attribute = volume_system.VolumeAttribute(
'identifier', vslvm_logical_volume.identifier)
self._AddAttribute(volume_attribute)
# TODO: implement in pyvslvm
# TODO: add support for creation time
# TODO: add support for logical volume extents
volume_extent = volume_system.VolumeExtent(0, vslvm_logical_volume.size)
self._extents.append(volume_extent)
[docs]class LVMVolumeSystem(volume_system.VolumeSystem):
"""Volume system that uses pyvslvm."""
TYPE_INDICATOR = definitions.TYPE_INDICATOR_LVM
VOLUME_IDENTIFIER_PREFIX = 'lvm'
def _Parse(self):
"""Extracts sections and volumes from the volume system."""
root_file_entry = self._file_system.GetRootFileEntry()
for sub_file_entry in root_file_entry.sub_file_entries:
volume = LVMVolume(sub_file_entry)
self._AddVolume(volume)
factory.Factory.RegisterVolumeSystem(LVMVolumeSystem)