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=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, 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))
