def _mzap(self, data):
self.salt = StreamUnpacker(data[8:16]).uint64()
self.entries = OODict()
for ent in split_records(data[64:], MZAP_ENT_LEN):
value = StreamUnpacker(ent[:8]).uint64()
name = ent[14:MZAP_NAME_LEN].strip('\00')
if name:
self.entries[name] = value
debug('mzap entries: %s' % self.entries)
def __init__(self, objset, obj_index):
self.objset = objset
self.dnode = objset.get_object(obj_index)
data = self.dnode.bonus
f = StreamUnpacker(data)
self.ds_dir_obj, self.ds_prev_snap_obj, self.ds_prev_snap_txg, self.ds_next_snap_obj, \
self.ds_snapnames_zapobj, self.ds_num_children, self.ds_creation_time, self.ds_creation_txg, \
self.ds_deadlist_obj, self.ds_used_bytes, self.ds_compressed_bytes, self.ds_uncompressed_bytes, \
self.ds_unique_bytes, self.ds_fsid_guid, self.ds_guid, self.ds_flags = f.repeat('uint64', 16)
self.ds_bp = BlockPtr(data[128:])
self._load()
def __init__(self, objset, obj_index):
self.objset = objset
self.dnode = objset.get_object(obj_index)
data = self.dnode.bonus
f = StreamUnpacker(data)
self.ds_dir_obj, self.ds_prev_snap_obj, self.ds_prev_snap_txg, self.ds_next_snap_obj, \
self.ds_snapnames_zapobj, self.ds_num_children, self.ds_creation_time, self.ds_creation_txg, \
self.ds_deadlist_obj, self.ds_used_bytes, self.ds_compressed_bytes, self.ds_uncompressed_bytes, \
self.ds_unique_bytes, self.ds_fsid_guid, self.ds_guid, self.ds_flags = f.repeat('uint64', 16)
self.ds_bp = BlockPtr(data[128:])
self._load()
def _parse_dva(self, data):
dva = OODict()
su = StreamUnpacker(data)
i = su.uint64()
dva.asize = get_bits(i, 0, 24) << SPA_MINBLOCKSHIFT
dva.grid = get_bits(i, 24, 8)
dva.vdev = get_bits(i, 32, 32)
i = su.uint64()
dva.offset = get_bits(i, 0, 63) << SPA_MINBLOCKSHIFT
if get_bits(i, 63, 1):
dva.G = True
else:
dva.G = False
return dva
def _parse_dva(self, data):
dva = OODict()
su = StreamUnpacker(data)
i = su.uint64()
dva.asize = get_bits(i, 0, 24) << SPA_MINBLOCKSHIFT
dva.grid = get_bits(i, 24, 8)
dva.vdev = get_bits(i, 32, 32)
i = su.uint64()
dva.offset = get_bits(i, 0, 63) << SPA_MINBLOCKSHIFT
if get_bits(i, 63, 1):
dva.G = True
else:
dva.G = False
return dva
def __init__(self, objset, obj_index):
self.objset = objset
self.dnode = objset.get_object(obj_index) # dnode of this object
# Fixme, we'd better to check the type of dnode before any further parsing begins
# dsl_dir and dsl_dataset are in the bonus buffer of a dnode
data = self.dnode.bonus
f = StreamUnpacker(data)
self.dd_creation_time, self.dd_head_dataset_obj, self.dd_parent_obj, \
self.dd_origin_obj, self.dd_child_dir_zapobj, \
self.dd_used_bytes, self.dd_compressed_bytes, self.dd_uncompressed_bytes, \
self.dd_quota, self.dd_reserved, self.dd_props_zapobj, self.dd_deleg_zapobj = f.repeat('uint64', 12)
self._load()
def __init__(self, data=None):
if data:
self.dva = []
dva_size = 16
for dva in split_records(data[0:dva_size * 3], dva_size):
self.dva.append(self._parse_dva(dva))
su = StreamUnpacker(data[dva_size * 3:])
i = su.uint64()
#see lib/libzfscommon/include/sys/spa.h
self.lsize = (get_bits(i, 0, 16) + 1) << SPA_MINBLOCKSHIFT
self.psize = (get_bits(i, 16, 16) + 1) << SPA_MINBLOCKSHIFT
self.comp = get_bits(i, 32, 8)
self.cksum = get_bits(i, 40, 8)
self.type = get_bits(i, 48, 8)
self.level = get_bits(i, 56, 5)
if get_bits(i, 63, 1):
self.endian = '<' # little endian
else:
self.endian = '>' # big
self.cksum = [
'unknown', 'on', 'off', 'label', 'gang header', 'zilog',
'fletcher2', 'fletcher4', 'SHA-256'
][self.cksum]
self.comp = ['unknown', 'on', 'off', 'lzjb'][self.comp]
self.type = self.type
su.rewind(-24) # skip 24b paddings
self.birth_txg, self.fill_count = su.repeat('uint64', 2)
self.checksum = []
for i in range(4):
self.checksum.append(su.uint64())
def __init__(self, data):
self.type = StreamUnpacker(data[:8]).uint64()
if self.type == ZBT_MICRO:
debug('mzap init')
self._mzap(data)
else:
# fat zap here
print 'type=%x zap found' % self.type
hexprint(data)
pass
def __init__(self, vdev, data):
self.vdev = vdev
self.meta_dnode = DNode(self.vdev, data[0:DNODE_SIZE])
if self.meta_dnode.type != 'DMU_OT_DNODE':
print 'currupted objset'
return None
zil_header_end = DNODE_SIZE + ZIL_HEADER_SIZE
self.zil_header = data[DNODE_SIZE:zil_header_end]
self.os_type = DMU_OBJSET_TYPE[StreamUnpacker(
data[zil_header_end:zil_header_end + 8]).uint64()]
def __init__(self, data = None):
if data:
self.dva = []
dva_size = 16
for dva in split_records(data[0 : dva_size * 3], dva_size):
self.dva.append(self._parse_dva(dva))
su = StreamUnpacker(data[dva_size * 3 :])
i = su.uint64()
#see lib/libzfscommon/include/sys/spa.h
self.lsize = (get_bits(i, 0, 16) + 1) << SPA_MINBLOCKSHIFT
self.psize = (get_bits(i, 16, 16) + 1) << SPA_MINBLOCKSHIFT
self.comp = get_bits(i, 32, 8)
self.cksum = get_bits(i, 40, 8)
self.type = get_bits(i, 48, 8)
self.level = get_bits(i, 56, 5)
if get_bits(i, 63, 1):
self.endian = '<' # little endian
else:
self.endian = '>' # big
self.cksum = ['unknown', 'on', 'off', 'label', 'gang header', 'zilog', 'fletcher2', 'fletcher4', 'SHA-256'][self.cksum]
self.comp = ['unknown', 'on', 'off', 'lzjb'][self.comp]
self.type = self.type
su.rewind(-24) # skip 24b paddings
self.birth_txg, self.fill_count = su.repeat('uint64', 2)
self.checksum = []
for i in range(4):
self.checksum.append(su.uint64())
def __init__(self, objset, obj_index):
self.objset = objset
self.dnode = objset.get_object(obj_index) # dnode of this object
# Fixme, we'd better to check the type of dnode before any further parsing begins
# dsl_dir and dsl_dataset are in the bonus buffer of a dnode
data = self.dnode.bonus
f = StreamUnpacker(data)
self.dd_creation_time, self.dd_head_dataset_obj, self.dd_parent_obj, \
self.dd_origin_obj, self.dd_child_dir_zapobj, \
self.dd_used_bytes, self.dd_compressed_bytes, self.dd_uncompressed_bytes, \
self.dd_quota, self.dd_reserved, self.dd_props_zapobj, self.dd_deleg_zapobj = f.repeat('uint64', 12)
self._load()
def __init__(self, vdev, data):
if not data:
return
self.vdev = vdev
su = StreamUnpacker(data)
self.type, self.indblkshift, self.nlevels, self.nblkptr, self.bonustype, \
self.checksum, self.compress, pad = su.repeat('uint8', 8)
self.type = DMU_OBJTYPE[self.type]
self.datablkszsec, self.bonuslen = su.repeat('uint16', 2)
su.rewind(-4)
self.maxblkid, self.secphys, pad = su.repeat('uint64', 3)
bonus_offset = DNODE_CORE_SIZE + BlockPtr_SIZE * self.nblkptr
self.blkptr = []
for blk in split_records(data[DNODE_CORE_SIZE:bonus_offset],
BlockPtr_SIZE):
bp = BlockPtr(blk)
if not bp.is_hole():
self.blkptr.append(bp)
self.bonus = data[bonus_offset:bonus_offset + self.bonuslen]
debug('dnode type=%s nlevels=%s nblkptr=%s bonustype=%s maxblkid=%s' % \
(self.type, self.nlevels, self.nblkptr, self.bonustype, self.maxblkid))
def __init__(self, vdev, data):
if not data:
return
self.vdev = vdev
su = StreamUnpacker(data)
self.type, self.indblkshift, self.nlevels, self.nblkptr, self.bonustype, \
self.checksum, self.compress, pad = su.repeat('uint8', 8)
self.type = DMU_OBJTYPE[self.type]
self.datablkszsec, self.bonuslen = su.repeat('uint16', 2)
su.rewind(-4)
self.maxblkid, self.secphys, pad = su.repeat('uint64', 3)
bonus_offset = DNODE_CORE_SIZE + BlockPtr_SIZE * self.nblkptr
self.blkptr = []
for blk in split_records(data[DNODE_CORE_SIZE : bonus_offset], BlockPtr_SIZE):
bp = BlockPtr(blk)
if not bp.is_hole():
self.blkptr.append(bp)
self.bonus = data[bonus_offset : bonus_offset + self.bonuslen]
debug('dnode type=%s nlevels=%s nblkptr=%s bonustype=%s maxblkid=%s' % \
(self.type, self.nlevels, self.nblkptr, self.bonustype, self.maxblkid))
def __init__(self, data):
if data:
su = StreamUnpacker(data)
self.ub_magic, self.ub_version, self.ub_txg, self.ub_guid_sum, self.ub_timestamp = su.repeat('uint64', 5)
def __init__(self, data):
if data:
su = StreamUnpacker(data)
self.ub_magic, self.ub_version, self.ub_txg, self.ub_guid_sum, self.ub_timestamp = su.repeat(
'uint64', 5)
