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 MicroZAPCommon(Struct):
__ENDIAN__ = 'little'
_pad = uint16()
collision = uint32()
name = nullstring(padded=True, max_length=50)
class BPObjHeader(Struct):
__ENDIAN__ = 'little'
length = uint64()
unknown = array(uint16(), length=20)
class Message(pyndata.Struct):
msg_type = pyndata.uint8()
msg_length = pyndata.uint16(endian='big')
payload = pyndata.bytestring(length=msg_length)
class BitFieldTests(pyndata.Struct):
real = pyndata.uint16()
bit1 = pyndata.BitField(real, 4, shift=0)
bit2 = pyndata.BitField(real, 1, shift=4)
bit3 = pyndata.BitField(real, 3, shift=5)
bit4 = pyndata.BitField(real, 8, shift=8)
class BitField2Tests(pyndata.Struct):
real = pyndata.uint16()
bit1 = pyndata.BitField(real, 4)
bit2 = pyndata.BitField(real, 1)
bit3 = pyndata.BitField(real, 3)
bit4 = pyndata.BitField(real, 8)
class ZNodeACL(pyndata.Struct):
external_object = pyndata.uint64()
count = pyndata.uint32()
version = pyndata.uint16()
_padding = pyndata.padding(length=2)
aces = pyndata.array(ZNodeACE, length=count)
class ZNodeACE(pyndata.Struct):
who = pyndata.uint32()
access_mask = pyndata.uint32()
flags = pyndata.uint16()
type = pyndata.uint16()
class e(pyndata.Struct):
__ENDIAN__ = 'big'
normal = pyndata.uint16()
little = pyndata.uint16(endian='little')
big = pyndata.uint16(endian='big')