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DNS: follow the "default values that work" logic 

- recursion desired (DNS.rd) defaults to 1
  - question defaults to IN A for www.example.com (DNSQR.qname)
This commit is contained in:
Pierre LALET 2016-05-18 11:28:47 +02:00
parent 9fce9b9647
commit 5277d26cc8
1 changed files with 4 additions and 4 deletions
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8
scapy/layers/dns.py
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@ -239,7 +239,7 @@ class DNS(Packet):
BitEnumField("opcode", 0, 4, {0:"QUERY",1:"IQUERY",2:"STATUS"}),
BitField("aa", 0, 1),
BitField("tc", 0, 1),
BitField("rd", 0, 1),
BitField("rd", 1, 1),
BitField("ra", 0, 1),
BitField("z", 0, 1),
# AD and CD bits are defined in RFC 2535
@ -288,9 +288,9 @@ dnsclasses = {1: 'IN', 2: 'CS', 3: 'CH', 4: 'HS', 255: 'ANY'}
class DNSQR(Packet):
name = "DNS Question Record"
show_indent=0
fields_desc = [ DNSStrField("qname",""),
ShortEnumField("qtype", 1, dnsqtypes),
ShortEnumField("qclass", 1, dnsclasses) ]
fields_desc = [DNSStrField("qname", "www.example.com"),
ShortEnumField("qtype", 1, dnsqtypes),
ShortEnumField("qclass", 1, dnsclasses)]