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# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
from pkg_resources import parse_version
from .kaitaistruct import __version__ as ks_version, KaitaiStruct, KaitaiStream, BytesIO
from enum import Enum
import collections
if parse_version(ks_version) < parse_version('0.7'):
raise Exception("Incompatible Kaitai Struct Python API: 0.7 or later is required, but you have %s" % (ks_version))
class SystemdJournal(KaitaiStruct):
"""systemd, a popular user-space system/service management suite on Linux,
offers logging functionality, storing incoming logs in a binary journal
format.
On live Linux system running systemd, these journals are typically located at:
* /run/log/journal/machine-id/*.journal (volatile, lost after reboot)
* /var/log/journal/machine-id/*.journal (persistent, but disabled by default on Debian / Ubuntu)
.. seealso::
Source - https://www.freedesktop.org/wiki/Software/systemd/journal-files/
"""
class State(Enum):
offline = 0
online = 1
archived = 2
SEQ_FIELDS = ["header", "objects"]
def __init__(self, _io, _parent=None, _root=None):
self._io = _io
self._parent = _parent
self._root = _root if _root else self
self._debug = collections.defaultdict(dict)
def _read(self):
self._debug['header']['start'] = self._io.pos()
self._raw_header = self._io.read_bytes(self.len_header)
io = KaitaiStream(BytesIO(self._raw_header))
self.header = self._root.Header(io, self, self._root)
self.header._read()
self._debug['header']['end'] = self._io.pos()
self._debug['objects']['start'] = self._io.pos()
self.objects = [None] * (self.header.num_objects)
for i in range(self.header.num_objects):
if not 'arr' in self._debug['objects']:
self._debug['objects']['arr'] = []
self._debug['objects']['arr'].append({'start': self._io.pos()})
_t_objects = self._root.JournalObject(self._io, self, self._root)
_t_objects._read()
self.objects[i] = _t_objects
self._debug['objects']['arr'][i]['end'] = self._io.pos()
self._debug['objects']['end'] = self._io.pos()
class Header(KaitaiStruct):
SEQ_FIELDS = ["signature", "compatible_flags", "incompatible_flags", "state", "reserved", "file_id", "machine_id", "boot_id", "seqnum_id", "len_header", "len_arena", "ofs_data_hash_table", "len_data_hash_table", "ofs_field_hash_table", "len_field_hash_table", "ofs_tail_object", "num_objects", "num_entries", "tail_entry_seqnum", "head_entry_seqnum", "ofs_entry_array", "head_entry_realtime", "tail_entry_realtime", "tail_entry_monotonic", "num_data", "num_fields", "num_tags", "num_entry_arrays"]
def __init__(self, _io, _parent=None, _root=None):
self._io = _io
self._parent = _parent
self._root = _root if _root else self
self._debug = collections.defaultdict(dict)
def _read(self):
self._debug['signature']['start'] = self._io.pos()
self.signature = self._io.ensure_fixed_contents(b"\x4C\x50\x4B\x53\x48\x48\x52\x48")
self._debug['signature']['end'] = self._io.pos()
self._debug['compatible_flags']['start'] = self._io.pos()
self.compatible_flags = self._io.read_u4le()
self._debug['compatible_flags']['end'] = self._io.pos()
self._debug['incompatible_flags']['start'] = self._io.pos()
self.incompatible_flags = self._io.read_u4le()
self._debug['incompatible_flags']['end'] = self._io.pos()
self._debug['state']['start'] = self._io.pos()
self.state = KaitaiStream.resolve_enum(self._root.State, self._io.read_u1())
self._debug['state']['end'] = self._io.pos()
self._debug['reserved']['start'] = self._io.pos()
self.reserved = self._io.read_bytes(7)
self._debug['reserved']['end'] = self._io.pos()
self._debug['file_id']['start'] = self._io.pos()
self.file_id = self._io.read_bytes(16)
self._debug['file_id']['end'] = self._io.pos()
self._debug['machine_id']['start'] = self._io.pos()
self.machine_id = self._io.read_bytes(16)
self._debug['machine_id']['end'] = self._io.pos()
self._debug['boot_id']['start'] = self._io.pos()
self.boot_id = self._io.read_bytes(16)
self._debug['boot_id']['end'] = self._io.pos()
self._debug['seqnum_id']['start'] = self._io.pos()
self.seqnum_id = self._io.read_bytes(16)
self._debug['seqnum_id']['end'] = self._io.pos()
self._debug['len_header']['start'] = self._io.pos()
self.len_header = self._io.read_u8le()
self._debug['len_header']['end'] = self._io.pos()
self._debug['len_arena']['start'] = self._io.pos()
self.len_arena = self._io.read_u8le()
self._debug['len_arena']['end'] = self._io.pos()
self._debug['ofs_data_hash_table']['start'] = self._io.pos()
self.ofs_data_hash_table = self._io.read_u8le()
self._debug['ofs_data_hash_table']['end'] = self._io.pos()
self._debug['len_data_hash_table']['start'] = self._io.pos()
self.len_data_hash_table = self._io.read_u8le()
self._debug['len_data_hash_table']['end'] = self._io.pos()
self._debug['ofs_field_hash_table']['start'] = self._io.pos()
self.ofs_field_hash_table = self._io.read_u8le()
self._debug['ofs_field_hash_table']['end'] = self._io.pos()
self._debug['len_field_hash_table']['start'] = self._io.pos()
self.len_field_hash_table = self._io.read_u8le()
self._debug['len_field_hash_table']['end'] = self._io.pos()
self._debug['ofs_tail_object']['start'] = self._io.pos()
self.ofs_tail_object = self._io.read_u8le()
self._debug['ofs_tail_object']['end'] = self._io.pos()
self._debug['num_objects']['start'] = self._io.pos()
self.num_objects = self._io.read_u8le()
self._debug['num_objects']['end'] = self._io.pos()
self._debug['num_entries']['start'] = self._io.pos()
self.num_entries = self._io.read_u8le()
self._debug['num_entries']['end'] = self._io.pos()
self._debug['tail_entry_seqnum']['start'] = self._io.pos()
self.tail_entry_seqnum = self._io.read_u8le()
self._debug['tail_entry_seqnum']['end'] = self._io.pos()
self._debug['head_entry_seqnum']['start'] = self._io.pos()
self.head_entry_seqnum = self._io.read_u8le()
self._debug['head_entry_seqnum']['end'] = self._io.pos()
self._debug['ofs_entry_array']['start'] = self._io.pos()
self.ofs_entry_array = self._io.read_u8le()
self._debug['ofs_entry_array']['end'] = self._io.pos()
self._debug['head_entry_realtime']['start'] = self._io.pos()
self.head_entry_realtime = self._io.read_u8le()
self._debug['head_entry_realtime']['end'] = self._io.pos()
self._debug['tail_entry_realtime']['start'] = self._io.pos()
self.tail_entry_realtime = self._io.read_u8le()
self._debug['tail_entry_realtime']['end'] = self._io.pos()
self._debug['tail_entry_monotonic']['start'] = self._io.pos()
self.tail_entry_monotonic = self._io.read_u8le()
self._debug['tail_entry_monotonic']['end'] = self._io.pos()
if not (self._io.is_eof()):
self._debug['num_data']['start'] = self._io.pos()
self.num_data = self._io.read_u8le()
self._debug['num_data']['end'] = self._io.pos()
if not (self._io.is_eof()):
self._debug['num_fields']['start'] = self._io.pos()
self.num_fields = self._io.read_u8le()
self._debug['num_fields']['end'] = self._io.pos()
if not (self._io.is_eof()):
self._debug['num_tags']['start'] = self._io.pos()
self.num_tags = self._io.read_u8le()
self._debug['num_tags']['end'] = self._io.pos()
if not (self._io.is_eof()):
self._debug['num_entry_arrays']['start'] = self._io.pos()
self.num_entry_arrays = self._io.read_u8le()
self._debug['num_entry_arrays']['end'] = self._io.pos()
class JournalObject(KaitaiStruct):
"""
.. seealso::
Source - https://www.freedesktop.org/wiki/Software/systemd/journal-files/#objects
"""
class ObjectTypes(Enum):
unused = 0
data = 1
field = 2
entry = 3
data_hash_table = 4
field_hash_table = 5
entry_array = 6
tag = 7
SEQ_FIELDS = ["padding", "object_type", "flags", "reserved", "len_object", "payload"]
def __init__(self, _io, _parent=None, _root=None):
self._io = _io
self._parent = _parent
self._root = _root if _root else self
self._debug = collections.defaultdict(dict)
def _read(self):
self._debug['padding']['start'] = self._io.pos()
self.padding = self._io.read_bytes(((8 - self._io.pos()) % 8))
self._debug['padding']['end'] = self._io.pos()
self._debug['object_type']['start'] = self._io.pos()
self.object_type = KaitaiStream.resolve_enum(self._root.JournalObject.ObjectTypes, self._io.read_u1())
self._debug['object_type']['end'] = self._io.pos()
self._debug['flags']['start'] = self._io.pos()
self.flags = self._io.read_u1()
self._debug['flags']['end'] = self._io.pos()
self._debug['reserved']['start'] = self._io.pos()
self.reserved = self._io.read_bytes(6)
self._debug['reserved']['end'] = self._io.pos()
self._debug['len_object']['start'] = self._io.pos()
self.len_object = self._io.read_u8le()
self._debug['len_object']['end'] = self._io.pos()
self._debug['payload']['start'] = self._io.pos()
_on = self.object_type
if _on == self._root.JournalObject.ObjectTypes.data:
self._raw_payload = self._io.read_bytes((self.len_object - 16))
io = KaitaiStream(BytesIO(self._raw_payload))
self.payload = self._root.DataObject(io, self, self._root)
self.payload._read()
else:
self.payload = self._io.read_bytes((self.len_object - 16))
self._debug['payload']['end'] = self._io.pos()
class DataObject(KaitaiStruct):
"""Data objects are designed to carry log payload, typically in
form of a "key=value" string in `payload` attribute.
.. seealso::
Source - https://www.freedesktop.org/wiki/Software/systemd/journal-files/#dataobjects
"""
SEQ_FIELDS = ["hash", "ofs_next_hash", "ofs_head_field", "ofs_entry", "ofs_entry_array", "num_entries", "payload"]
def __init__(self, _io, _parent=None, _root=None):
self._io = _io
self._parent = _parent
self._root = _root if _root else self
self._debug = collections.defaultdict(dict)
def _read(self):
self._debug['hash']['start'] = self._io.pos()
self.hash = self._io.read_u8le()
self._debug['hash']['end'] = self._io.pos()
self._debug['ofs_next_hash']['start'] = self._io.pos()
self.ofs_next_hash = self._io.read_u8le()
self._debug['ofs_next_hash']['end'] = self._io.pos()
self._debug['ofs_head_field']['start'] = self._io.pos()
self.ofs_head_field = self._io.read_u8le()
self._debug['ofs_head_field']['end'] = self._io.pos()
self._debug['ofs_entry']['start'] = self._io.pos()
self.ofs_entry = self._io.read_u8le()
self._debug['ofs_entry']['end'] = self._io.pos()
self._debug['ofs_entry_array']['start'] = self._io.pos()
self.ofs_entry_array = self._io.read_u8le()
self._debug['ofs_entry_array']['end'] = self._io.pos()
self._debug['num_entries']['start'] = self._io.pos()
self.num_entries = self._io.read_u8le()
self._debug['num_entries']['end'] = self._io.pos()
self._debug['payload']['start'] = self._io.pos()
self.payload = self._io.read_bytes_full()
self._debug['payload']['end'] = self._io.pos()
@property
def next_hash(self):
if hasattr(self, '_m_next_hash'):
return self._m_next_hash if hasattr(self, '_m_next_hash') else None
if self.ofs_next_hash != 0:
io = self._root._io
_pos = io.pos()
io.seek(self.ofs_next_hash)
self._debug['_m_next_hash']['start'] = io.pos()
self._m_next_hash = self._root.JournalObject(io, self, self._root)
self._m_next_hash._read()
self._debug['_m_next_hash']['end'] = io.pos()
io.seek(_pos)
return self._m_next_hash if hasattr(self, '_m_next_hash') else None
@property
def head_field(self):
if hasattr(self, '_m_head_field'):
return self._m_head_field if hasattr(self, '_m_head_field') else None
if self.ofs_head_field != 0:
io = self._root._io
_pos = io.pos()
io.seek(self.ofs_head_field)
self._debug['_m_head_field']['start'] = io.pos()
self._m_head_field = self._root.JournalObject(io, self, self._root)
self._m_head_field._read()
self._debug['_m_head_field']['end'] = io.pos()
io.seek(_pos)
return self._m_head_field if hasattr(self, '_m_head_field') else None
@property
def entry(self):
if hasattr(self, '_m_entry'):
return self._m_entry if hasattr(self, '_m_entry') else None
if self.ofs_entry != 0:
io = self._root._io
_pos = io.pos()
io.seek(self.ofs_entry)
self._debug['_m_entry']['start'] = io.pos()
self._m_entry = self._root.JournalObject(io, self, self._root)
self._m_entry._read()
self._debug['_m_entry']['end'] = io.pos()
io.seek(_pos)
return self._m_entry if hasattr(self, '_m_entry') else None
@property
def entry_array(self):
if hasattr(self, '_m_entry_array'):
return self._m_entry_array if hasattr(self, '_m_entry_array') else None
if self.ofs_entry_array != 0:
io = self._root._io
_pos = io.pos()
io.seek(self.ofs_entry_array)
self._debug['_m_entry_array']['start'] = io.pos()
self._m_entry_array = self._root.JournalObject(io, self, self._root)
self._m_entry_array._read()
self._debug['_m_entry_array']['end'] = io.pos()
io.seek(_pos)
return self._m_entry_array if hasattr(self, '_m_entry_array') else None
@property
def len_header(self):
"""Header length is used to set substream size, as it thus required
prior to declaration of header.
"""
if hasattr(self, '_m_len_header'):
return self._m_len_header if hasattr(self, '_m_len_header') else None
_pos = self._io.pos()
self._io.seek(88)
self._debug['_m_len_header']['start'] = self._io.pos()
self._m_len_header = self._io.read_u8le()
self._debug['_m_len_header']['end'] = self._io.pos()
self._io.seek(_pos)
return self._m_len_header if hasattr(self, '_m_len_header') else None
@property
def data_hash_table(self):
if hasattr(self, '_m_data_hash_table'):
return self._m_data_hash_table if hasattr(self, '_m_data_hash_table') else None
_pos = self._io.pos()
self._io.seek(self.header.ofs_data_hash_table)
self._debug['_m_data_hash_table']['start'] = self._io.pos()
self._m_data_hash_table = self._io.read_bytes(self.header.len_data_hash_table)
self._debug['_m_data_hash_table']['end'] = self._io.pos()
self._io.seek(_pos)
return self._m_data_hash_table if hasattr(self, '_m_data_hash_table') else None
@property
def field_hash_table(self):
if hasattr(self, '_m_field_hash_table'):
return self._m_field_hash_table if hasattr(self, '_m_field_hash_table') else None
_pos = self._io.pos()
self._io.seek(self.header.ofs_field_hash_table)
self._debug['_m_field_hash_table']['start'] = self._io.pos()
self._m_field_hash_table = self._io.read_bytes(self.header.len_field_hash_table)
self._debug['_m_field_hash_table']['end'] = self._io.pos()
self._io.seek(_pos)
return self._m_field_hash_table if hasattr(self, '_m_field_hash_table') else None
|
