1DNS(3)                              dns 1.0                             DNS(3)
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NAME

6       packet.application.dns - DNS module
7

DESCRIPTION

9       Decode DNS layer.
10
11       RFC  1035  Domain  Names  -  Implementation  and Specification RFC 2671
12       Extension Mechanisms for DNS (EDNS0) RFC 4034 Resource Records for  the
13       DNS  Security  Extensions  RFC  4035 Protocol Modifications for the DNS
14       Security Extensions RFC 4255 Using DNS to Securely Publish Secure Shell
15       (SSH) Key Fingerprints
16

CLASSES

18   class DNS(baseobj.BaseObj)
19       DNS object
20
21       Usage:
22           from packet.application.dns import DNS
23
24           # Decode DNS layer
25           x = DNS(pktt, proto)
26
27       Object definition:
28
29       DNS(
30           id          = int,  # Query Identifier
31           QR          = int,  # Packet Type (QUERY or REPLY)
32           opcode      = int,  # Query Type
33           AA          = int,  # Authoritative Answer
34           TC          = int,  # Truncated Response
35           RD          = int,  # Recursion Desired
36           RA          = int,  # Recursion Available
37           AD          = int,  # Authentic Data
38           CD          = int,  # Checking Disabled
39           rcode       = int,  # Response Code
40           version     = int,  # Version (EDNS0)
41           udpsize     = int,  # UDP Payload Size (EDNS0)
42           options     = list, # Options (EDNS0)
43           qdcount     = int,  # Number of Queries
44           ancount     = int,  # Number of Answers
45           nscount     = int,  # Number of Authority Records
46           arcount     = int,  # Number of Additional Records
47           queries     = list, # List of Queries
48           answers     = list, # List of Answers
49           authorities = list, # List of Authority Records
50           additional  = list, # List of Additional Records
51       )
52
53
54       Methods defined here:
55       ---------------------
56
57       __init__(self, pktt, proto)
58       Constructor
59
60       Initialize object's private data.
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62
63              pktt:  Packet trace object (packet.pktt.Pktt) so this layer has
64                     access to the parent layers.
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66              proto: Transport layer protocol.
67
68       __nonzero__(self)
69       Truth value testing for the built-in operation bool()
70
71   class Option(baseobj.BaseObj)
72       Option object
73
74
75   class Query(baseobj.BaseObj)
76       Query object
77
78
79   class Resource(baseobj.BaseObj)
80       Resource object
81
82
83   class dns_algorithm(packet.utils.Enum)
84       enum dns_algorithm
85
86
87   class dns_class(packet.utils.Enum)
88       enum dns_class
89
90
91   class dns_fptype(packet.utils.Enum)
92       enum dns_fptype
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94
95   class dns_opcode(packet.utils.Enum)
96       enum dns_opcode
97
98
99   class dns_query(packet.utils.Enum)
100       enum dns_query
101
102
103   class dns_rcode(packet.utils.Enum)
104       enum dns_rcode
105
106
107   class dns_type(packet.utils.Enum)
108       enum dns_type
109
110

SEE ALSO

112       baseobj(3),        packet.internet.ipv6addr(3),       packet.unpack(3),
113       packet.utils(3)
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115

BUGS

117       No known bugs.
118

AUTHOR

120       Jorge Mora (mora@netapp.com)
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124NFStest 2.1.5                  14 February 2017                         DNS(3)