The metadata stored by Android at the beginning of a "super" partition, which is what it calls a disk partition that holds one or more Dynamic Partitions. Dynamic Partitions do more or less the same thing that LVM does on Linux, allowing Android to map ranges of non-contiguous extents to a single logical device. This metadata holds that mapping.
This page hosts a formal specification of Android Dynamic Partitions metadata using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.
# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
# type: ignore
import kaitaistruct
from kaitaistruct import ReadWriteKaitaiStruct, KaitaiStream, BytesIO
from enum import IntEnum
if getattr(kaitaistruct, 'API_VERSION', (0, 9)) < (0, 11):
raise Exception("Incompatible Kaitai Struct Python API: 0.11 or later is required, but you have %s" % (kaitaistruct.__version__))
class AndroidSuper(ReadWriteKaitaiStruct):
"""The metadata stored by Android at the beginning of a "super" partition, which
is what it calls a disk partition that holds one or more Dynamic Partitions.
Dynamic Partitions do more or less the same thing that LVM does on Linux,
allowing Android to map ranges of non-contiguous extents to a single logical
device. This metadata holds that mapping.
.. seealso::
Source - https://source.android.com/docs/core/ota/dynamic_partitions
.. seealso::
Source - https://android.googlesource.com/platform/system/core/+/refs/tags/android-11.0.0_r8/fs_mgr/liblp/include/liblp/metadata_format.h
"""
def __init__(self, _io=None, _parent=None, _root=None):
super(AndroidSuper, self).__init__(_io)
self._parent = _parent
self._root = _root or self
self._should_write_root = False
self.root__enabled = True
def _read(self):
pass
self._dirty = False
def _fetch_instances(self):
pass
_ = self.root
if hasattr(self, '_m_root'):
pass
self._m_root._fetch_instances()
def _write__seq(self, io=None):
super(AndroidSuper, self)._write__seq(io)
self._should_write_root = self.root__enabled
def _check(self):
if self.root__enabled:
pass
if self._m_root._root != self._root:
raise kaitaistruct.ConsistencyError(u"root", self._root, self._m_root._root)
if self._m_root._parent != self:
raise kaitaistruct.ConsistencyError(u"root", self, self._m_root._parent)
self._dirty = False
class Geometry(ReadWriteKaitaiStruct):
def __init__(self, _io=None, _parent=None, _root=None):
super(AndroidSuper.Geometry, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.magic = self._io.read_bytes(4)
if not self.magic == b"\x67\x44\x6C\x61":
raise kaitaistruct.ValidationNotEqualError(b"\x67\x44\x6C\x61", self.magic, self._io, u"/types/geometry/seq/0")
self.struct_size = self._io.read_u4le()
self.checksum = self._io.read_bytes(32)
self.metadata_max_size = self._io.read_u4le()
self.metadata_slot_count = self._io.read_u4le()
self.logical_block_size = self._io.read_u4le()
self._dirty = False
def _fetch_instances(self):
pass
def _write__seq(self, io=None):
super(AndroidSuper.Geometry, self)._write__seq(io)
self._io.write_bytes(self.magic)
self._io.write_u4le(self.struct_size)
self._io.write_bytes(self.checksum)
self._io.write_u4le(self.metadata_max_size)
self._io.write_u4le(self.metadata_slot_count)
self._io.write_u4le(self.logical_block_size)
def _check(self):
if len(self.magic) != 4:
raise kaitaistruct.ConsistencyError(u"magic", 4, len(self.magic))
if not self.magic == b"\x67\x44\x6C\x61":
raise kaitaistruct.ValidationNotEqualError(b"\x67\x44\x6C\x61", self.magic, None, u"/types/geometry/seq/0")
if len(self.checksum) != 32:
raise kaitaistruct.ConsistencyError(u"checksum", 32, len(self.checksum))
self._dirty = False
class Metadata(ReadWriteKaitaiStruct):
class TableKind(IntEnum):
partitions = 0
extents = 1
groups = 2
block_devices = 3
def __init__(self, _io=None, _parent=None, _root=None):
super(AndroidSuper.Metadata, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.magic = self._io.read_bytes(4)
if not self.magic == b"\x30\x50\x4C\x41":
raise kaitaistruct.ValidationNotEqualError(b"\x30\x50\x4C\x41", self.magic, self._io, u"/types/metadata/seq/0")
self.major_version = self._io.read_u2le()
self.minor_version = self._io.read_u2le()
self.header_size = self._io.read_u4le()
self.header_checksum = self._io.read_bytes(32)
self.tables_size = self._io.read_u4le()
self.tables_checksum = self._io.read_bytes(32)
self.partitions = AndroidSuper.Metadata.TableDescriptor(AndroidSuper.Metadata.TableKind.partitions, self._io, self, self._root)
self.partitions._read()
self.extents = AndroidSuper.Metadata.TableDescriptor(AndroidSuper.Metadata.TableKind.extents, self._io, self, self._root)
self.extents._read()
self.groups = AndroidSuper.Metadata.TableDescriptor(AndroidSuper.Metadata.TableKind.groups, self._io, self, self._root)
self.groups._read()
self.block_devices = AndroidSuper.Metadata.TableDescriptor(AndroidSuper.Metadata.TableKind.block_devices, self._io, self, self._root)
self.block_devices._read()
self._dirty = False
def _fetch_instances(self):
pass
self.partitions._fetch_instances()
self.extents._fetch_instances()
self.groups._fetch_instances()
self.block_devices._fetch_instances()
def _write__seq(self, io=None):
super(AndroidSuper.Metadata, self)._write__seq(io)
self._io.write_bytes(self.magic)
self._io.write_u2le(self.major_version)
self._io.write_u2le(self.minor_version)
self._io.write_u4le(self.header_size)
self._io.write_bytes(self.header_checksum)
self._io.write_u4le(self.tables_size)
self._io.write_bytes(self.tables_checksum)
self.partitions._write__seq(self._io)
self.extents._write__seq(self._io)
self.groups._write__seq(self._io)
self.block_devices._write__seq(self._io)
def _check(self):
if len(self.magic) != 4:
raise kaitaistruct.ConsistencyError(u"magic", 4, len(self.magic))
if not self.magic == b"\x30\x50\x4C\x41":
raise kaitaistruct.ValidationNotEqualError(b"\x30\x50\x4C\x41", self.magic, None, u"/types/metadata/seq/0")
if len(self.header_checksum) != 32:
raise kaitaistruct.ConsistencyError(u"header_checksum", 32, len(self.header_checksum))
if len(self.tables_checksum) != 32:
raise kaitaistruct.ConsistencyError(u"tables_checksum", 32, len(self.tables_checksum))
if self.partitions._root != self._root:
raise kaitaistruct.ConsistencyError(u"partitions", self._root, self.partitions._root)
if self.partitions._parent != self:
raise kaitaistruct.ConsistencyError(u"partitions", self, self.partitions._parent)
if self.partitions.kind != AndroidSuper.Metadata.TableKind.partitions:
raise kaitaistruct.ConsistencyError(u"partitions", AndroidSuper.Metadata.TableKind.partitions, self.partitions.kind)
if self.extents._root != self._root:
raise kaitaistruct.ConsistencyError(u"extents", self._root, self.extents._root)
if self.extents._parent != self:
raise kaitaistruct.ConsistencyError(u"extents", self, self.extents._parent)
if self.extents.kind != AndroidSuper.Metadata.TableKind.extents:
raise kaitaistruct.ConsistencyError(u"extents", AndroidSuper.Metadata.TableKind.extents, self.extents.kind)
if self.groups._root != self._root:
raise kaitaistruct.ConsistencyError(u"groups", self._root, self.groups._root)
if self.groups._parent != self:
raise kaitaistruct.ConsistencyError(u"groups", self, self.groups._parent)
if self.groups.kind != AndroidSuper.Metadata.TableKind.groups:
raise kaitaistruct.ConsistencyError(u"groups", AndroidSuper.Metadata.TableKind.groups, self.groups.kind)
if self.block_devices._root != self._root:
raise kaitaistruct.ConsistencyError(u"block_devices", self._root, self.block_devices._root)
if self.block_devices._parent != self:
raise kaitaistruct.ConsistencyError(u"block_devices", self, self.block_devices._parent)
if self.block_devices.kind != AndroidSuper.Metadata.TableKind.block_devices:
raise kaitaistruct.ConsistencyError(u"block_devices", AndroidSuper.Metadata.TableKind.block_devices, self.block_devices.kind)
self._dirty = False
class BlockDevice(ReadWriteKaitaiStruct):
def __init__(self, _io=None, _parent=None, _root=None):
super(AndroidSuper.Metadata.BlockDevice, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.first_logical_sector = self._io.read_u8le()
self.alignment = self._io.read_u4le()
self.alignment_offset = self._io.read_u4le()
self.size = self._io.read_u8le()
self.partition_name = (KaitaiStream.bytes_terminate(self._io.read_bytes(36), 0, False)).decode(u"UTF-8")
self.flag_slot_suffixed = self._io.read_bits_int_le(1) != 0
self.flags_reserved = self._io.read_bits_int_le(31)
self._dirty = False
def _fetch_instances(self):
pass
def _write__seq(self, io=None):
super(AndroidSuper.Metadata.BlockDevice, self)._write__seq(io)
self._io.write_u8le(self.first_logical_sector)
self._io.write_u4le(self.alignment)
self._io.write_u4le(self.alignment_offset)
self._io.write_u8le(self.size)
self._io.write_bytes_limit((self.partition_name).encode(u"UTF-8"), 36, 0, 0)
self._io.write_bits_int_le(1, int(self.flag_slot_suffixed))
self._io.write_bits_int_le(31, self.flags_reserved)
def _check(self):
if len((self.partition_name).encode(u"UTF-8")) > 36:
raise kaitaistruct.ConsistencyError(u"partition_name", 36, len((self.partition_name).encode(u"UTF-8")))
if KaitaiStream.byte_array_index_of((self.partition_name).encode(u"UTF-8"), 0) != -1:
raise kaitaistruct.ConsistencyError(u"partition_name", -1, KaitaiStream.byte_array_index_of((self.partition_name).encode(u"UTF-8"), 0))
self._dirty = False
class Extent(ReadWriteKaitaiStruct):
class TargetType(IntEnum):
linear = 0
zero = 1
def __init__(self, _io=None, _parent=None, _root=None):
super(AndroidSuper.Metadata.Extent, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.num_sectors = self._io.read_u8le()
self.target_type = KaitaiStream.resolve_enum(AndroidSuper.Metadata.Extent.TargetType, self._io.read_u4le())
self.target_data = self._io.read_u8le()
self.target_source = self._io.read_u4le()
self._dirty = False
def _fetch_instances(self):
pass
def _write__seq(self, io=None):
super(AndroidSuper.Metadata.Extent, self)._write__seq(io)
self._io.write_u8le(self.num_sectors)
self._io.write_u4le(int(self.target_type))
self._io.write_u8le(self.target_data)
self._io.write_u4le(self.target_source)
def _check(self):
self._dirty = False
class Group(ReadWriteKaitaiStruct):
def __init__(self, _io=None, _parent=None, _root=None):
super(AndroidSuper.Metadata.Group, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.name = (KaitaiStream.bytes_terminate(self._io.read_bytes(36), 0, False)).decode(u"UTF-8")
self.flag_slot_suffixed = self._io.read_bits_int_le(1) != 0
self.flags_reserved = self._io.read_bits_int_le(31)
self.maximum_size = self._io.read_u8le()
self._dirty = False
def _fetch_instances(self):
pass
def _write__seq(self, io=None):
super(AndroidSuper.Metadata.Group, self)._write__seq(io)
self._io.write_bytes_limit((self.name).encode(u"UTF-8"), 36, 0, 0)
self._io.write_bits_int_le(1, int(self.flag_slot_suffixed))
self._io.write_bits_int_le(31, self.flags_reserved)
self._io.write_u8le(self.maximum_size)
def _check(self):
if len((self.name).encode(u"UTF-8")) > 36:
raise kaitaistruct.ConsistencyError(u"name", 36, len((self.name).encode(u"UTF-8")))
if KaitaiStream.byte_array_index_of((self.name).encode(u"UTF-8"), 0) != -1:
raise kaitaistruct.ConsistencyError(u"name", -1, KaitaiStream.byte_array_index_of((self.name).encode(u"UTF-8"), 0))
self._dirty = False
class Partition(ReadWriteKaitaiStruct):
def __init__(self, _io=None, _parent=None, _root=None):
super(AndroidSuper.Metadata.Partition, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self.name = (KaitaiStream.bytes_terminate(self._io.read_bytes(36), 0, False)).decode(u"UTF-8")
self.attr_readonly = self._io.read_bits_int_le(1) != 0
self.attr_slot_suffixed = self._io.read_bits_int_le(1) != 0
self.attr_updated = self._io.read_bits_int_le(1) != 0
self.attr_disabled = self._io.read_bits_int_le(1) != 0
self.attrs_reserved = self._io.read_bits_int_le(28)
self.first_extent_index = self._io.read_u4le()
self.num_extents = self._io.read_u4le()
self.group_index = self._io.read_u4le()
self._dirty = False
def _fetch_instances(self):
pass
def _write__seq(self, io=None):
super(AndroidSuper.Metadata.Partition, self)._write__seq(io)
self._io.write_bytes_limit((self.name).encode(u"UTF-8"), 36, 0, 0)
self._io.write_bits_int_le(1, int(self.attr_readonly))
self._io.write_bits_int_le(1, int(self.attr_slot_suffixed))
self._io.write_bits_int_le(1, int(self.attr_updated))
self._io.write_bits_int_le(1, int(self.attr_disabled))
self._io.write_bits_int_le(28, self.attrs_reserved)
self._io.write_u4le(self.first_extent_index)
self._io.write_u4le(self.num_extents)
self._io.write_u4le(self.group_index)
def _check(self):
if len((self.name).encode(u"UTF-8")) > 36:
raise kaitaistruct.ConsistencyError(u"name", 36, len((self.name).encode(u"UTF-8")))
if KaitaiStream.byte_array_index_of((self.name).encode(u"UTF-8"), 0) != -1:
raise kaitaistruct.ConsistencyError(u"name", -1, KaitaiStream.byte_array_index_of((self.name).encode(u"UTF-8"), 0))
self._dirty = False
class TableDescriptor(ReadWriteKaitaiStruct):
def __init__(self, kind, _io=None, _parent=None, _root=None):
super(AndroidSuper.Metadata.TableDescriptor, self).__init__(_io)
self._parent = _parent
self._root = _root
self.kind = kind
self._should_write_table = False
self.table__enabled = True
def _read(self):
self.offset = self._io.read_u4le()
self.num_entries = self._io.read_u4le()
self.entry_size = self._io.read_u4le()
self._dirty = False
def _fetch_instances(self):
pass
_ = self.table
if hasattr(self, '_m_table'):
pass
for i in range(len(self._m_table)):
pass
_on = self.kind
if _on == AndroidSuper.Metadata.TableKind.block_devices:
pass
self._m_table[i]._fetch_instances()
elif _on == AndroidSuper.Metadata.TableKind.extents:
pass
self._m_table[i]._fetch_instances()
elif _on == AndroidSuper.Metadata.TableKind.groups:
pass
self._m_table[i]._fetch_instances()
elif _on == AndroidSuper.Metadata.TableKind.partitions:
pass
self._m_table[i]._fetch_instances()
else:
pass
def _write__seq(self, io=None):
super(AndroidSuper.Metadata.TableDescriptor, self)._write__seq(io)
self._should_write_table = self.table__enabled
self._io.write_u4le(self.offset)
self._io.write_u4le(self.num_entries)
self._io.write_u4le(self.entry_size)
def _check(self):
if self.table__enabled:
pass
if len(self._m_table) != self.num_entries:
raise kaitaistruct.ConsistencyError(u"table", self.num_entries, len(self._m_table))
for i in range(len(self._m_table)):
pass
_on = self.kind
if _on == AndroidSuper.Metadata.TableKind.block_devices:
pass
if self._m_table[i]._root != self._root:
raise kaitaistruct.ConsistencyError(u"table", self._root, self._m_table[i]._root)
if self._m_table[i]._parent != self:
raise kaitaistruct.ConsistencyError(u"table", self, self._m_table[i]._parent)
elif _on == AndroidSuper.Metadata.TableKind.extents:
pass
if self._m_table[i]._root != self._root:
raise kaitaistruct.ConsistencyError(u"table", self._root, self._m_table[i]._root)
if self._m_table[i]._parent != self:
raise kaitaistruct.ConsistencyError(u"table", self, self._m_table[i]._parent)
elif _on == AndroidSuper.Metadata.TableKind.groups:
pass
if self._m_table[i]._root != self._root:
raise kaitaistruct.ConsistencyError(u"table", self._root, self._m_table[i]._root)
if self._m_table[i]._parent != self:
raise kaitaistruct.ConsistencyError(u"table", self, self._m_table[i]._parent)
elif _on == AndroidSuper.Metadata.TableKind.partitions:
pass
if self._m_table[i]._root != self._root:
raise kaitaistruct.ConsistencyError(u"table", self._root, self._m_table[i]._root)
if self._m_table[i]._parent != self:
raise kaitaistruct.ConsistencyError(u"table", self, self._m_table[i]._parent)
else:
pass
if len(self._m_table[i]) != self.entry_size:
raise kaitaistruct.ConsistencyError(u"table", self.entry_size, len(self._m_table[i]))
self._dirty = False
@property
def table(self):
if self._should_write_table:
self._write_table()
if hasattr(self, '_m_table'):
return self._m_table
if not self.table__enabled:
return None
_pos = self._io.pos()
self._io.seek(self._parent.header_size + self.offset)
self._raw__m_table = []
self._m_table = []
for i in range(self.num_entries):
_on = self.kind
if _on == AndroidSuper.Metadata.TableKind.block_devices:
pass
self._raw__m_table.append(self._io.read_bytes(self.entry_size))
_io__raw__m_table = KaitaiStream(BytesIO(self._raw__m_table[i]))
_t__m_table = AndroidSuper.Metadata.BlockDevice(_io__raw__m_table, self, self._root)
try:
_t__m_table._read()
finally:
self._m_table.append(_t__m_table)
elif _on == AndroidSuper.Metadata.TableKind.extents:
pass
self._raw__m_table.append(self._io.read_bytes(self.entry_size))
_io__raw__m_table = KaitaiStream(BytesIO(self._raw__m_table[i]))
_t__m_table = AndroidSuper.Metadata.Extent(_io__raw__m_table, self, self._root)
try:
_t__m_table._read()
finally:
self._m_table.append(_t__m_table)
elif _on == AndroidSuper.Metadata.TableKind.groups:
pass
self._raw__m_table.append(self._io.read_bytes(self.entry_size))
_io__raw__m_table = KaitaiStream(BytesIO(self._raw__m_table[i]))
_t__m_table = AndroidSuper.Metadata.Group(_io__raw__m_table, self, self._root)
try:
_t__m_table._read()
finally:
self._m_table.append(_t__m_table)
elif _on == AndroidSuper.Metadata.TableKind.partitions:
pass
self._raw__m_table.append(self._io.read_bytes(self.entry_size))
_io__raw__m_table = KaitaiStream(BytesIO(self._raw__m_table[i]))
_t__m_table = AndroidSuper.Metadata.Partition(_io__raw__m_table, self, self._root)
try:
_t__m_table._read()
finally:
self._m_table.append(_t__m_table)
else:
pass
self._m_table.append(self._io.read_bytes(self.entry_size))
self._io.seek(_pos)
return getattr(self, '_m_table', None)
@table.setter
def table(self, v):
self._dirty = True
self._m_table = v
def _write_table(self):
self._should_write_table = False
_pos = self._io.pos()
self._io.seek(self._parent.header_size + self.offset)
self._raw__m_table = []
for i in range(len(self._m_table)):
pass
_on = self.kind
if _on == AndroidSuper.Metadata.TableKind.block_devices:
pass
_io__raw__m_table = KaitaiStream(BytesIO(bytearray(self.entry_size)))
self._io.add_child_stream(_io__raw__m_table)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (self.entry_size))
def handler(parent, _io__raw__m_table=_io__raw__m_table, i=i):
self._raw__m_table.append(_io__raw__m_table.to_byte_array())
if len(self._raw__m_table[i]) != self.entry_size:
raise kaitaistruct.ConsistencyError(u"raw(table)", self.entry_size, len(self._raw__m_table[i]))
parent.write_bytes(self._raw__m_table[i])
_io__raw__m_table.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self._m_table[i]._write__seq(_io__raw__m_table)
elif _on == AndroidSuper.Metadata.TableKind.extents:
pass
_io__raw__m_table = KaitaiStream(BytesIO(bytearray(self.entry_size)))
self._io.add_child_stream(_io__raw__m_table)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (self.entry_size))
def handler(parent, _io__raw__m_table=_io__raw__m_table, i=i):
self._raw__m_table.append(_io__raw__m_table.to_byte_array())
if len(self._raw__m_table[i]) != self.entry_size:
raise kaitaistruct.ConsistencyError(u"raw(table)", self.entry_size, len(self._raw__m_table[i]))
parent.write_bytes(self._raw__m_table[i])
_io__raw__m_table.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self._m_table[i]._write__seq(_io__raw__m_table)
elif _on == AndroidSuper.Metadata.TableKind.groups:
pass
_io__raw__m_table = KaitaiStream(BytesIO(bytearray(self.entry_size)))
self._io.add_child_stream(_io__raw__m_table)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (self.entry_size))
def handler(parent, _io__raw__m_table=_io__raw__m_table, i=i):
self._raw__m_table.append(_io__raw__m_table.to_byte_array())
if len(self._raw__m_table[i]) != self.entry_size:
raise kaitaistruct.ConsistencyError(u"raw(table)", self.entry_size, len(self._raw__m_table[i]))
parent.write_bytes(self._raw__m_table[i])
_io__raw__m_table.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self._m_table[i]._write__seq(_io__raw__m_table)
elif _on == AndroidSuper.Metadata.TableKind.partitions:
pass
_io__raw__m_table = KaitaiStream(BytesIO(bytearray(self.entry_size)))
self._io.add_child_stream(_io__raw__m_table)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (self.entry_size))
def handler(parent, _io__raw__m_table=_io__raw__m_table, i=i):
self._raw__m_table.append(_io__raw__m_table.to_byte_array())
if len(self._raw__m_table[i]) != self.entry_size:
raise kaitaistruct.ConsistencyError(u"raw(table)", self.entry_size, len(self._raw__m_table[i]))
parent.write_bytes(self._raw__m_table[i])
_io__raw__m_table.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self._m_table[i]._write__seq(_io__raw__m_table)
else:
pass
self._io.write_bytes(self._m_table[i])
self._io.seek(_pos)
class Root(ReadWriteKaitaiStruct):
def __init__(self, _io=None, _parent=None, _root=None):
super(AndroidSuper.Root, self).__init__(_io)
self._parent = _parent
self._root = _root
def _read(self):
self._raw_primary_geometry = self._io.read_bytes(4096)
_io__raw_primary_geometry = KaitaiStream(BytesIO(self._raw_primary_geometry))
self.primary_geometry = AndroidSuper.Geometry(_io__raw_primary_geometry, self, self._root)
self.primary_geometry._read()
self._raw_backup_geometry = self._io.read_bytes(4096)
_io__raw_backup_geometry = KaitaiStream(BytesIO(self._raw_backup_geometry))
self.backup_geometry = AndroidSuper.Geometry(_io__raw_backup_geometry, self, self._root)
self.backup_geometry._read()
self._raw_primary_metadata = []
self.primary_metadata = []
for i in range(self.primary_geometry.metadata_slot_count):
self._raw_primary_metadata.append(self._io.read_bytes(self.primary_geometry.metadata_max_size))
_io__raw_primary_metadata = KaitaiStream(BytesIO(self._raw_primary_metadata[i]))
_t_primary_metadata = AndroidSuper.Metadata(_io__raw_primary_metadata, self, self._root)
try:
_t_primary_metadata._read()
finally:
self.primary_metadata.append(_t_primary_metadata)
self._raw_backup_metadata = []
self.backup_metadata = []
for i in range(self.primary_geometry.metadata_slot_count):
self._raw_backup_metadata.append(self._io.read_bytes(self.primary_geometry.metadata_max_size))
_io__raw_backup_metadata = KaitaiStream(BytesIO(self._raw_backup_metadata[i]))
_t_backup_metadata = AndroidSuper.Metadata(_io__raw_backup_metadata, self, self._root)
try:
_t_backup_metadata._read()
finally:
self.backup_metadata.append(_t_backup_metadata)
self._dirty = False
def _fetch_instances(self):
pass
self.primary_geometry._fetch_instances()
self.backup_geometry._fetch_instances()
for i in range(len(self.primary_metadata)):
pass
self.primary_metadata[i]._fetch_instances()
for i in range(len(self.backup_metadata)):
pass
self.backup_metadata[i]._fetch_instances()
def _write__seq(self, io=None):
super(AndroidSuper.Root, self)._write__seq(io)
_io__raw_primary_geometry = KaitaiStream(BytesIO(bytearray(4096)))
self._io.add_child_stream(_io__raw_primary_geometry)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (4096))
def handler(parent, _io__raw_primary_geometry=_io__raw_primary_geometry):
self._raw_primary_geometry = _io__raw_primary_geometry.to_byte_array()
if len(self._raw_primary_geometry) != 4096:
raise kaitaistruct.ConsistencyError(u"raw(primary_geometry)", 4096, len(self._raw_primary_geometry))
parent.write_bytes(self._raw_primary_geometry)
_io__raw_primary_geometry.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self.primary_geometry._write__seq(_io__raw_primary_geometry)
_io__raw_backup_geometry = KaitaiStream(BytesIO(bytearray(4096)))
self._io.add_child_stream(_io__raw_backup_geometry)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (4096))
def handler(parent, _io__raw_backup_geometry=_io__raw_backup_geometry):
self._raw_backup_geometry = _io__raw_backup_geometry.to_byte_array()
if len(self._raw_backup_geometry) != 4096:
raise kaitaistruct.ConsistencyError(u"raw(backup_geometry)", 4096, len(self._raw_backup_geometry))
parent.write_bytes(self._raw_backup_geometry)
_io__raw_backup_geometry.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self.backup_geometry._write__seq(_io__raw_backup_geometry)
self._raw_primary_metadata = []
for i in range(len(self.primary_metadata)):
pass
_io__raw_primary_metadata = KaitaiStream(BytesIO(bytearray(self.primary_geometry.metadata_max_size)))
self._io.add_child_stream(_io__raw_primary_metadata)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (self.primary_geometry.metadata_max_size))
def handler(parent, _io__raw_primary_metadata=_io__raw_primary_metadata, i=i):
self._raw_primary_metadata.append(_io__raw_primary_metadata.to_byte_array())
if len(self._raw_primary_metadata[i]) != self.primary_geometry.metadata_max_size:
raise kaitaistruct.ConsistencyError(u"raw(primary_metadata)", self.primary_geometry.metadata_max_size, len(self._raw_primary_metadata[i]))
parent.write_bytes(self._raw_primary_metadata[i])
_io__raw_primary_metadata.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self.primary_metadata[i]._write__seq(_io__raw_primary_metadata)
self._raw_backup_metadata = []
for i in range(len(self.backup_metadata)):
pass
_io__raw_backup_metadata = KaitaiStream(BytesIO(bytearray(self.primary_geometry.metadata_max_size)))
self._io.add_child_stream(_io__raw_backup_metadata)
_pos2 = self._io.pos()
self._io.seek(self._io.pos() + (self.primary_geometry.metadata_max_size))
def handler(parent, _io__raw_backup_metadata=_io__raw_backup_metadata, i=i):
self._raw_backup_metadata.append(_io__raw_backup_metadata.to_byte_array())
if len(self._raw_backup_metadata[i]) != self.primary_geometry.metadata_max_size:
raise kaitaistruct.ConsistencyError(u"raw(backup_metadata)", self.primary_geometry.metadata_max_size, len(self._raw_backup_metadata[i]))
parent.write_bytes(self._raw_backup_metadata[i])
_io__raw_backup_metadata.write_back_handler = KaitaiStream.WriteBackHandler(_pos2, handler)
self.backup_metadata[i]._write__seq(_io__raw_backup_metadata)
def _check(self):
if self.primary_geometry._root != self._root:
raise kaitaistruct.ConsistencyError(u"primary_geometry", self._root, self.primary_geometry._root)
if self.primary_geometry._parent != self:
raise kaitaistruct.ConsistencyError(u"primary_geometry", self, self.primary_geometry._parent)
if self.backup_geometry._root != self._root:
raise kaitaistruct.ConsistencyError(u"backup_geometry", self._root, self.backup_geometry._root)
if self.backup_geometry._parent != self:
raise kaitaistruct.ConsistencyError(u"backup_geometry", self, self.backup_geometry._parent)
if len(self.primary_metadata) != self.primary_geometry.metadata_slot_count:
raise kaitaistruct.ConsistencyError(u"primary_metadata", self.primary_geometry.metadata_slot_count, len(self.primary_metadata))
for i in range(len(self.primary_metadata)):
pass
if self.primary_metadata[i]._root != self._root:
raise kaitaistruct.ConsistencyError(u"primary_metadata", self._root, self.primary_metadata[i]._root)
if self.primary_metadata[i]._parent != self:
raise kaitaistruct.ConsistencyError(u"primary_metadata", self, self.primary_metadata[i]._parent)
if len(self.backup_metadata) != self.primary_geometry.metadata_slot_count:
raise kaitaistruct.ConsistencyError(u"backup_metadata", self.primary_geometry.metadata_slot_count, len(self.backup_metadata))
for i in range(len(self.backup_metadata)):
pass
if self.backup_metadata[i]._root != self._root:
raise kaitaistruct.ConsistencyError(u"backup_metadata", self._root, self.backup_metadata[i]._root)
if self.backup_metadata[i]._parent != self:
raise kaitaistruct.ConsistencyError(u"backup_metadata", self, self.backup_metadata[i]._parent)
self._dirty = False
@property
def root(self):
if self._should_write_root:
self._write_root()
if hasattr(self, '_m_root'):
return self._m_root
if not self.root__enabled:
return None
_pos = self._io.pos()
self._io.seek(4096)
self._m_root = AndroidSuper.Root(self._io, self, self._root)
self._m_root._read()
self._io.seek(_pos)
return getattr(self, '_m_root', None)
@root.setter
def root(self, v):
self._dirty = True
self._m_root = v
def _write_root(self):
self._should_write_root = False
_pos = self._io.pos()
self._io.seek(4096)
self._m_root._write__seq(self._io)
self._io.seek(_pos)