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)