Source code for pcapkit.const.mh.cga_extension
# -*- coding: utf-8 -*-
# pylint: disable=line-too-long,consider-using-f-string
"""CGA Extension Type Values
===============================
.. module:: pcapkit.const.mh.cga_extension
This module contains the constant enumeration for **CGA Extension Type Values**,
which is automatically generated from :class:`pcapkit.vendor.mh.cga_extension.CGAExtension`.
"""
from aenum import IntEnum, extend_enum
__all__ = ['CGAExtension']
[docs]
class CGAExtension(IntEnum):
"""[CGAExtension] CGA Extension Type Values"""
#: Multi-Prefix [:rfc:`5535`]
Multi_Prefix = 0x0012
#: Exp_FFFD (experimental) [:rfc:`4581`]
Exp_FFFD = 0xFFFD
#: Exp_FFFE (experimental) [:rfc:`4581`]
Exp_FFFE = 0xFFFE
#: Exp_FFFF (experimental) [:rfc:`4581`]
Exp_FFFF = 0xFFFF
@staticmethod
def get(key: 'int | str', default: 'int' = -1) -> 'CGAExtension':
"""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 CGAExtension(key)
if key not in CGAExtension._member_map_: # pylint: disable=no-member
return extend_enum(CGAExtension, key, default)
return CGAExtension[key] # type: ignore[misc]
[docs]
@classmethod
def _missing_(cls, value: 'int') -> 'CGAExtension':
"""Lookup function used when value is not found.
Args:
value: Value to get enum item.
"""
if not (isinstance(value, int) and 0 <= value <= 0xFFFF):
raise ValueError('%r is not a valid %s' % (value, cls.__name__))
if 0x0000 <= value <= 0x0011:
#: Unassigned
return extend_enum(cls, 'Unassigned_%04x' % value, value)
if 0x0013 <= value <= 0xFFFC:
#: Unassigned
return extend_enum(cls, 'Unassigned_%04x' % value, value)
#: Unspecified in the IANA registry
return extend_enum(cls, 'Unassigned_%04x' % value, value)