DNS(3)

NAME
packet.application.dns - DNS module

DESCRIPTION

Decode DNS layer.

RFC 1035 Domain Names - Implementation and Specification RFC 2671 Extension Mechanisms for DNS (EDNS0) RFC 4034 Resource Records for the DNS Security Extensions RFC 4035 Protocol Modifications for the DNS Security Extensions RFC 4255 Using DNS to Securely Publish Secure Shell (SSH) Key Fingerprints

CLASSES

  class DNS(baseobj.BaseObj)
DNS object

Usage:
    from packet.application.dns import DNS

    # Decode DNS layer
    x = DNS(pktt, proto)

Object definition:

DNS(
    id          = int,  # Query Identifier
    QR          = int,  # Packet Type (QUERY or REPLY)
    opcode      = int,  # Query Type
    AA          = int,  # Authoritative Answer
    TC          = int,  # Truncated Response
    RD          = int,  # Recursion Desired
    RA          = int,  # Recursion Available
    AD          = int,  # Authentic Data
    CD          = int,  # Checking Disabled
    rcode       = int,  # Response Code
    version     = int,  # Version (EDNS0)
    udpsize     = int,  # UDP Payload Size (EDNS0)
    options     = list, # Options (EDNS0)
    qdcount     = int,  # Number of Queries
    ancount     = int,  # Number of Answers
    nscount     = int,  # Number of Authority Records
    arcount     = int,  # Number of Additional Records
    queries     = list, # List of Queries
    answers     = list, # List of Answers
    authorities = list, # List of Authority Records
    additional  = list, # List of Additional Records
)

Methods defined here:
---------------------

__bool__(self)
Truth value testing for the built-in operation bool()

__init__(self, pktt, proto)
Constructor

Initialize object's private data.

    pktt:
        Packet trace object (packet.pktt.Pktt) so this layer has
        access to the parent layers.

    proto:
        Transport layer protocol.

  class Option(baseobj.BaseObj)
Option object

  class Query(baseobj.BaseObj)
Query object

  class Resource(baseobj.BaseObj)
Resource object

  class dns_algorithm(packet.utils.Enum)
enum dns_algorithm

  class dns_class(packet.utils.Enum)
enum dns_class

  class dns_fptype(packet.utils.Enum)
enum dns_fptype

  class dns_opcode(packet.utils.Enum)
enum dns_opcode

  class dns_query(packet.utils.Enum)
enum dns_query

  class dns_rcode(packet.utils.Enum)
enum dns_rcode

  class dns_type(packet.utils.Enum)
enum dns_type

SEE ALSO
baseobj(3), packet.application.dns_const(3), packet.internet.ipv6addr(3), packet.unpack(3), packet.utils(3)

BUGS
No known bugs.

AUTHOR
Jorge Mora (mora@netapp.com)