Source code for dfvfs.analyzer.bde_analyzer_helper
# -*- coding: utf-8 -*-
"""The BDE format analyzer helper implementation."""
from dfvfs.analyzer import analyzer
from dfvfs.analyzer import analyzer_helper
from dfvfs.analyzer import specification
from dfvfs.lib import definitions
[docs]
class BDEAnalyzerHelper(analyzer_helper.AnalyzerHelper):
"""BDE analyzer helper."""
FORMAT_CATEGORIES = frozenset([
definitions.FORMAT_CATEGORY_VOLUME_SYSTEM])
TYPE_INDICATOR = definitions.TYPE_INDICATOR_BDE
[docs]
def GetFormatSpecification(self):
"""Retrieves the format specification.
Returns:
FormatSpecification: format specification or None if the format cannot
be defined by a specification object.
"""
format_specification = specification.FormatSpecification(
self.type_indicator)
# BDE signature.
format_specification.AddNewSignature(b'-FVE-FS-', offset=3)
# BDE ToGo BDE identifier.
format_specification.AddNewSignature(
b'\x3b\xd6\x67\x49\x29\x2e\xd8\x4a\x83\x99\xf6\xa3\x39\xe3\xd0\x01',
offset=424)
return format_specification
analyzer.Analyzer.RegisterHelper(BDEAnalyzerHelper())