Source code for pcapkit.const.ipv4.option_number

# -*- coding: utf-8 -*-
# pylint: disable=line-too-long
"""IP Option Numbers"""

from aenum import IntEnum, extend_enum

__all__ = ['OptionNumber']


class OptionNumber(IntEnum):
    """[OptionNumber] IP Option Numbers"""

    #: EOOL - End of Options List [:rfc:`791`][Jon Postel]
    EOOL = 0

    #: NOP - No Operation [:rfc:`791`][Jon Postel]
    NOP = 1

    #: SEC - Security [:rfc:`1108`]
    SEC = 130

    #: LSR - Loose Source Route [:rfc:`791`][Jon Postel]
    LSR = 131

    #: TS - Time Stamp [:rfc:`791`][Jon Postel]
    TS = 68

    #: E-SEC - Extended Security [:rfc:`1108`]
    E_SEC = 133

    #: CIPSO - Commercial Security [draft-ietf-cipso-ipsecurity-01]
    CIPSO = 134

    #: RR - Record Route [:rfc:`791`][Jon Postel]
    RR = 7

    #: SID - Stream ID [:rfc:`791`][Jon Postel][:rfc:`6814`]
    SID = 136

    #: SSR - Strict Source Route [:rfc:`791`][Jon Postel]
    SSR = 137

    #: ZSU - Experimental Measurement [ZSu]
    ZSU = 10

    #: MTUP - MTU Probe [:rfc:`1063`][:rfc:`1191`]
    MTUP = 11

    #: MTUR - MTU Reply [:rfc:`1063`][:rfc:`1191`]
    MTUR = 12

    #: FINN - Experimental Flow Control [Greg Finn]
    FINN = 205

    #: VISA - Experimental Access Control [Deborah Estrin][:rfc:`6814`]
    VISA = 142

    #: ENCODE [VerSteeg][:rfc:`6814`]
    ENCODE = 15

    #: IMITD - IMI Traffic Descriptor [Lee]
    IMITD = 144

    #: EIP - Extended Internet Protocol [:rfc:`1385`][:rfc:`6814`]
    EIP = 145

    #: TR - Traceroute [:rfc:`1393`][:rfc:`6814`]
    TR = 82

    #: ADDEXT - Address Extension [Ullmann IPv7][:rfc:`6814`]
    ADDEXT = 147

    #: RTRALT - Router Alert [:rfc:`2113`]
    RTRALT = 148

    #: SDB - Selective Directed Broadcast [Charles Bud Graff][:rfc:`6814`]
    SDB = 149

    #: Unassigned (Released 18 October 2005)
    Unassigned_150 = 150

    #: DPS - Dynamic Packet State [Andy Malis][:rfc:`6814`]
    DPS = 151

    #: UMP - Upstream Multicast Pkt. [Dino Farinacci][:rfc:`6814`]
    UMP = 152

    #: QS - Quick-Start [:rfc:`4782`]
    QS = 25

    #: EXP - RFC3692-style Experiment  [:rfc:`4727`]
    EXP_30 = 30

    #: EXP - RFC3692-style Experiment  [:rfc:`4727`]
    EXP_94 = 94

    #: EXP - RFC3692-style Experiment  [:rfc:`4727`]
    EXP_158 = 158

    #: EXP - RFC3692-style Experiment  [:rfc:`4727`]
    EXP_222 = 222

    @staticmethod
    def get(key, default=-1):
        """Backport support for original codes."""
        if isinstance(key, int):
            return OptionNumber(key)
        if key not in OptionNumber._member_map_:  # pylint: disable=no-member
            extend_enum(OptionNumber, key, default)
        return OptionNumber[key]

    @classmethod
    def _missing_(cls, value):
        """Lookup function used when value is not found."""
        if not (isinstance(value, int) and 0 <= value <= 255):
            raise ValueError('%r is not a valid %s' % (value, cls.__name__))
        extend_enum(cls, 'Unassigned_%d' % value, value)
        return cls(value)