Source code for pcapkit.const.tcp.mp_tcp_option
# -*- coding: utf-8 -*-
# pylint: disable=line-too-long,consider-using-f-string
"""Multipath TCP options
===========================
.. module:: pcapkit.const.tcp.mp_tcp_option
This module contains the constant enumeration for **Multipath TCP options**,
which is automatically generated from :class:`pcapkit.vendor.tcp.mp_tcp_option.MPTCPOption`.
"""
from aenum import IntEnum, extend_enum
__all__ = ['MPTCPOption']
[docs]
class MPTCPOption(IntEnum):
"""[MPTCPOption] Multipath TCP options [:rfc:`6824`]"""
#: Multipath Capable [:rfc:`8684#3.1`]
MP_CAPABLE = 0x0
#: Join Connection [:rfc:`8684#3.2`]
MP_JOIN = 0x1
#: Data Sequence Signal (Data ACK and Data Sequence Mapping) [:rfc:`8684#3.3`]
DSS = 0x2
#: Add Address [:rfc:`8684#3.4.1`]
ADD_ADDR = 0x3
#: Remove Address [:rfc:`8684#3.4.2`]
REMOVE_ADDR = 0x4
#: Change Subflow Priority [:rfc:`8684#3.3.8`]
MP_PRIO = 0x5
#: Fallback [:rfc:`8684#3.7`]
MP_FAIL = 0x6
#: Fast Close [:rfc:`8684#3.5`]
MP_FASTCLOSE = 0x7
#: Subflow Reset [:rfc:`8684#3.6`]
MP_TCPRST = 0x8
#: [:rfc:`8684`]
Reserved_for_Private_Use = 0xf
@staticmethod
def get(key: 'int | str', default: 'int' = -1) -> 'MPTCPOption':
"""Backport support for original codes.
Args:
key: Key to get enum item.
default: Default value if not found.
:meta private:
"""
if isinstance(key, int):
return MPTCPOption(key)
if key not in MPTCPOption._member_map_: # pylint: disable=no-member
return extend_enum(MPTCPOption, key, default)
return MPTCPOption[key] # type: ignore[misc]
[docs]
@classmethod
def _missing_(cls, value: 'int') -> 'MPTCPOption':
"""Lookup function used when value is not found.
Args:
value: Value to get enum item.
"""
if not (isinstance(value, int) and 0 <= value <= 255):
raise ValueError('%r is not a valid %s' % (value, cls.__name__))
if 0x9 <= value <= 0xe:
#:
return extend_enum(cls, 'Unassigned_%d' % value, value)
return super()._missing_(value)