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c@sFeZdZdZeZdZdZdZddd�Z	dd	d
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c@s\eZdZdZeZdZdefdefdfZdZ	dd	d
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c@sNeZdZdZeZdZdZdZdZ	dZ
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    Mailbox or mail list information.

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    @ivar emailbx: A domain-name which specifies a mailbox which is to receive
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c@sFeZdZdZeZdZdZdZddd	�Z	dd
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    A record containing the fingerprint of an SSH key.

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    @type fingerprintType: L{int}
    @ivar fingerprintType: The fingerprint type,
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    @ivar fingerprint: The key's fingerprint, e.g. a 32-byte SHA-256 digest.

    @cvar ALGORITHM_RSA: The algorithm value for C{ssh-rsa} keys.
    @cvar ALGORITHM_DSS: The algorithm value for C{ssh-dss} keys.
    @cvar ALGORITHM_ECDSA: The algorithm value for C{ecdsa-sha2-*} keys.
    @cvar ALGORITHM_Ed25519: The algorithm value for C{ed25519} keys.

    @cvar FINGERPRINT_TYPE_SHA1: The type for SHA-1 fingerprints.
    @cvar FINGERPRINT_TYPE_SHA256: The type for SHA-256 fingerprints.

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    @ivar recDes: See L{__init__}
    @ivar recAv: See L{__init__}
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        @type type: L{int}

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    The I{OPT} records are used to populate certain I{EDNS} specific attributes.

    L{_EDNSMessage.toStr} will add suitable I{OPT} records to the additional
    section to represent the extended EDNS information.

    @see: U{https://tools.ietf.org/html/rfc6891}

    @ivar id: See L{__init__}
    @ivar answer: See L{__init__}
    @ivar opCode: See L{__init__}
    @ivar auth: See L{__init__}
    @ivar trunc: See L{__init__}
    @ivar recDes: See L{__init__}
    @ivar recAv: See L{__init__}
    @ivar rCode: See L{__init__}
    @ivar ednsVersion: See L{__init__}
    @ivar dnssecOK: See L{__init__}
    @ivar authenticData: See L{__init__}
    @ivar checkingDisabled: See L{__init__}
    @ivar maxSize: See L{__init__}

    @ivar queries: See L{__init__}
    @ivar answers: See L{__init__}
    @ivar authority: See L{__init__}
    @ivar additional: See L{__init__}

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        @see: U{RFC1035 section-4.1.1<https://tools.ietf.org/html/rfc1035#section-4.1.1>}
        @see: U{RFC2535 section-6.1<https://tools.ietf.org/html/rfc2535#section-6.1>}
        @see: U{RFC3225 section-3<https://tools.ietf.org/html/rfc3225#section-3>}
        @see: U{RFC6891 section-6.1.3<https://tools.ietf.org/html/rfc6891#section-6.1.3>}

        @param id: A 16 bit identifier assigned by the program that generates
            any kind of query.  This identifier is copied the corresponding
            reply and can be used by the requester to match up replies to
            outstanding queries.
        @type id: L{int}

        @param answer: A one bit field that specifies whether this message is a
            query (0), or a response (1).
        @type answer: L{bool}

        @param opCode: A four bit field that specifies kind of query in this
            message.  This value is set by the originator of a query and copied
            into the response.
        @type opCode: L{int}

        @param auth: Authoritative Answer - this bit is valid in responses, and
            specifies that the responding name server is an authority for the
            domain name in question section.
        @type auth: L{bool}

        @param trunc: Truncation - specifies that this message was truncated due
            to length greater than that permitted on the transmission channel.
        @type trunc: L{bool}

        @param recDes: Recursion Desired - this bit may be set in a query and is
            copied into the response.  If set, it directs the name server to
            pursue the query recursively. Recursive query support is optional.
        @type recDes: L{bool}

        @param recAv: Recursion Available - this bit is set or cleared in a
            response, and denotes whether recursive query support is available
            in the name server.
        @type recAv: L{bool}

        @param rCode: Extended 12-bit RCODE. Derived from the 4 bits defined in
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        @type rCode: L{int}

        @param ednsVersion: Indicates the EDNS implementation level. Set to
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        @type ednsVersion: L{int} or L{None}

        @param dnssecOK: DNSSEC OK bit as defined by
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        @type dnssecOK: L{bool}

        @param authenticData: A flag indicating in a response that all the data
            included in the answer and authority portion of the response has
            been authenticated by the server according to the policies of that
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            See U{RFC2535 section-6.1<https://tools.ietf.org/html/rfc2535#section-6.1>}.
        @type authenticData: L{bool}

        @param checkingDisabled: A flag indicating in a query that pending
            (non-authenticated) data is acceptable to the resolver sending the
            query.
            See U{RFC2535 section-6.1<https://tools.ietf.org/html/rfc2535#section-6.1>}.
        @type authenticData: L{bool}

        @param maxSize: The requestor's UDP payload size is the number of octets
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        @type maxSize: L{int}

        @param queries: The L{list} of L{Query} associated with this message.
        @type queries: L{list} of L{Query}

        @param answers: The L{list} of answers associated with this message.
        @type answers: L{list} of L{RRHeader}

        @param authority: The L{list} of authority records associated with this
            message.
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        The C{extendedRCODE} will be combined with C{message.rCode} and assigned
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