def getBytes(self, trimmed=False):
"""TODO"""
ret = self.header.getBytes() + self.rheader.getBytes()
ret += struct.pack('!B', self.reason)
if trimmed is True:
return ret
else:
return FixedLenCell.padCellBytes(ret, self.header.link_version)
def getBytes(self, trimmed=False):
'''Construct and return the byte string represented by this cell.
:param bool trimmed: If **True**, return the non-padded payload.
Otherwise pad the payload with null bytes to the fixed-size
length in use according to the Link Protocol version.
:returns: **str** byte string represented by this cell
'''
ret = self.header.getBytes() + self.rheader.getBytes() + self.rpayload
return FixedLenCell.padCellBytes(ret, self.header.link_version)
def getBytes(self, trimmed=False):
'''Build and return the raw byte string this cell represents.
:param bool trimmed: if **True**, do not pad payload bytes
:returns: **str** raw bytes this cell represents
'''
ret = self.header.getBytes() + self.rheader.getBytes()
ret += struct.pack('!B', self.reason)
if trimmed is True:
return ret
else:
return FixedLenCell.padCellBytes(ret, self.header.link_version)
def getBytes(self, trimmed=False):
'''Build and return the raw byte string this cell represents.
:param bool trimmed: If **True**, do not pad this cell's payload.
:returns: **str** raw byte string represented by this cell
'''
ret = self.header.getBytes() + self.rheader.getBytes()
ret += self.addr
ret += self.flags
if trimmed is True:
return ret
else:
return FixedLenCell.padCellBytes(ret, self.header.link_version)
def getBytes(self, trimmed=False):
'''Build and return the raw byte string this cell represents.
:param bool trimmed: if **True**, do not pad payload bytes
:returns: **str** raw byte string this cell represents
'''
ret = self.header.getBytes() + self.rheader.getBytes()
ret += struct.pack('!B', self.reason)
ret += self.reason_data
if trimmed is True:
return ret
else:
return FixedLenCell.padCellBytes(ret, self.header.link_version)
def getBytes(self, trimmed=False):
'''Build and return the raw byte string this cell represents.
:param bool trimmed: If **True**, do not pad this cell's payload.
:returns: **str** raw byte string represented by this cell
'''
ret = self.header.getBytes() + self.rheader.getBytes()
ret += self.addr
ret += self.flags
if trimmed is True:
return ret
else:
return FixedLenCell.padCellBytes(ret, self.header.link_version)
CIRC_ID = 1
# Unit tests and constants for Create2Cell
CREATE2_CMD = 10
CREATE2_NTOR_HTYPE = 2
CREATE2_NTOR_HLEN = 84
CREATE2_NTOR_HDATA_DUMMY = "\x00" * CREATE2_NTOR_HLEN
create2_bytes_good = struct.pack(
"!HBHH{}s".format(CREATE2_NTOR_HLEN),
CIRC_ID, CREATE2_CMD,
CREATE2_NTOR_HTYPE, CREATE2_NTOR_HLEN, CREATE2_NTOR_HDATA_DUMMY,
)
create2_bytes_good_padded = FixedLenCell.padCellBytes(create2_bytes_good)
assert len(create2_bytes_good_padded) == 512
create2_parse_bad_htype = struct.pack(
"!HBHH{}s".format(CREATE2_NTOR_HLEN),
CIRC_ID, CREATE2_CMD,
# ntor should be 2
1, CREATE2_NTOR_HLEN, CREATE2_NTOR_HDATA_DUMMY,
)
create2_parse_bad_htype = FixedLenCell.padCellBytes(create2_parse_bad_htype)
assert len(create2_parse_bad_htype) == 512
create2_parse_bad_hlen = struct.pack(
"!HBHH{}s".format(CREATE2_NTOR_HLEN),
CIRC_ID, CREATE2_CMD,
# hlen should be 84 for ntor