class SystemAttributeMagic(pyndata.Struct):
magic = pyndata.bytestring(length=4)
layout = pyndata.uint8()
unknown1 = pyndata.uint8()
unknown2 = pyndata.padding(length=2)
unknown3 = pyndata.bytestring(
length=lambda s, x=None: 8 if s.unknown1 == 8 else 0)
class DNode(Struct):
__ENDIAN__ = 'little'
node_type = uint8(enum=constants.ObjectType)
indirect_blockshift = uint8()
indirect_levels = uint8()
num_blockptrs = uint8()
bonustype = uint8(enum=constants.ObjectType)
checksum_type = uint8(enum=constants.Checksum)
compression_type = uint8(enum=constants.Compression)
_dnode_flags = uint8() # TODO: dnode flag bitfields
used_bytes = BitField(_dnode_flags, 1, 0)
userused = BitField(_dnode_flags, 1, 1)
spill_blkptr = BitField(_dnode_flags, 1, 3)
data_sectors = uint16()
bonuslen = uint16()
_pad = padding(length=4)
max_block_id = uint64()
used = uint64()
_pad2 = padding(length=4 * 8)
blkptr = array(Blockptr(), length=num_blockptrs)
def bonus_length(self, o=None):
if self.bonuslen != 0 and self.node_type != constants.ObjectType.NONE:
return self.bonuslen
elif self.node_type == constants.ObjectType.NONE:
return 320
else:
return self.bonuslen
bonus = bytestring(length=bonus_length) # TODO: finish
_final_pad = padding(length=64)
class ArrayWithFunctionLength(pyndata.Struct):
def __init__(self, *a, **kw):
super(ArrayWithFunctionLength, self).__init__(*a, **kw)
self.real_length = 3
def length(self, length=None):
if length:
self.real_length = length
else:
return self.real_length
a = pyndata.array(pyndata.uint8(), length=length)
class Header(pyndata.Struct):
msg_type = pyndata.uint8()
class padded(pyndata.Struct):
f = pyndata.uint8(default=0xff)
pad = pyndata.padding(3)
class Header(pyndata.Struct):
msg_len = pyndata.uint8()
class Message(pyndata.Struct):
msg_type = pyndata.uint8()
msg_length = pyndata.uint16(endian='big')
payload = pyndata.bytestring(length=msg_length)
class S(pyndata.Struct):
a = pyndata.uint8()
b = pyndata.uint8()
c = pyndata.uint8()
class ArrayWithBitfieldLength(pyndata.Struct):
a = pyndata.uint8()
b = pyndata.BitField(a, 8, 0)
c = pyndata.array(pyndata.uint8(), length=b)
class VariableArray(pyndata.Struct):
l = pyndata.uint8()
a = pyndata.array(pyndata.uint8(), length=l)
class FixedArrayTests(pyndata.Struct):
arr = pyndata.array(pyndata.uint8(), 3)
class S1(pyndata.Struct):
f = pyndata.uint8()
class SubStruct(pyndata.Struct):
x = pyndata.uint8()
class s(pyndata.Struct):
first = pyndata.uint8()
second = pyndata.uint8(default=5)
class S(pyndata.Struct):
_a = pyndata.uint8()
b = pyndata.uint8()
c = pyndata.BitField(b, 1)
_d = pyndata.BitField(b, 1)
class VariableBytestring(pyndata.Struct):
l = pyndata.uint8()
s = pyndata.bytestring(length=l)
