class DNSRR(InheritOriginDNSStrPacket):
name = "DNS Resource Record"
show_indent = 0
fields_desc = [DNSStrField("rrname", ""),
ShortEnumField("type", 1, dnstypes),
ShortEnumField("rclass", 1, 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
(DNSStrField("rdata", "",
length_from=lambda pkt: pkt.rdlen),
lambda pkt: pkt.type in [2, 3, 4, 5, 12]),
# TEXT
(DNSTextField("rdata", [],
length_from=lambda pkt: pkt.rdlen),
lambda pkt: pkt.type == 16),
],
StrLenField("rdata", "",
length_from=lambda pkt:pkt.rdlen)
)]
class LLTDAttributeIPv4Address(LLTDAttribute):
name = "LLTD Attribute - IPv4 Address"
fields_desc = [
ByteField("len", 4),
IPField("ipv4", "0.0.0.0"),
]