Class DNSRR

scapy/layers/dns.py:1166–1197

class DNSRR(Packet):
    name = "DNS Resource Record"
    show_indent = 0
    fields_desc = [DNSStrField("rrname", ""),
                   ShortEnumField("type", 1, dnstypes),
                   BitField("cacheflush", 0, 1),  # mDNS RFC 6762
                   BitEnumField("rclass", 1, 15, dnsclasses),
                   IntField("ttl", 0),
                   FieldLenField("rdlen", None, length_of="rdata", fmt="H"),
                   MultipleTypeField(
                       [
                           # A
                           (IPField("rdata", "0.0.0.0"),
                               lambda pkt: pkt.type == 1),
                           # AAAA
                           (IP6Field("rdata", "::"),
                               lambda pkt: pkt.type == 28),
                           # NS, MD, MF, CNAME, PTR, DNAME
                           (DNSStrField("rdata", "",
                                        length_from=lambda pkt: pkt.rdlen),
                               lambda pkt: pkt.type in [2, 3, 4, 5, 12, 39]),
                           # TEXT
                           (DNSTextField("rdata", [""],
                                         length_from=lambda pkt: pkt.rdlen),
                               lambda pkt: pkt.type == 16),
                       ],
                       StrLenField("rdata", "",
                                   length_from=lambda pkt:pkt.rdlen)
    )]

    def default_payload_class(self, payload):
        return conf.padding_layer


def _DNSRR(s, **kwargs):