/usr/lib/python2.7/dist-packages/impacket/dns.py is in python-impacket 0.9.15-1.
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#
# This software is provided under under a slightly modified version
# of the Apache Software License. See the accompanying LICENSE file
# for more information.
#
# Author:
# Andres Blanco
# Gustavo Moreira
#
# RFCs for the DNS Server service
#
# 1034 - Domain Names -- Concepts and Facilities [http://www.faqs.org/rfcs/rfc1034.html]
# 1035 - Domain Names -- Implementation and Specification [http://www.faqs.org/rfcs/rfc1035.html]
# 1123 - Requirements for Internet Hosts -- Application and Support [http://www.faqs.org/rfcs/rfc1123.html]
# 1886 - DNS Extensions to Support IP Version 6 [http://www.faqs.org/rfcs/rfc1886.html]
# 1995 - Incremental Zone Transfer in DNS [http://www.faqs.org/rfcs/rfc1995.html]
# 1996 - A Mechanism for Prompt Notification of Zone Changes (DNS NOTIFY) [http://www.faqs.org/rfcs/rfc1996.html]
# 2136 - Dynamic Updates in the Domain Name System (DNS UPDATE) [http://www.faqs.org/rfcs/rfc2136.html]
# 2181 - Clarifications to the DNS Specification [http://www.faqs.org/rfcs/rfc2181.html]
# 2308 - Negative Caching of DNS Queries (DNS NCACHE) [http://www.faqs.org/rfcs/rfc2308.html]
# 2535 - Domain Name System Security Extensions (DNSSEC) [http://www.faqs.org/rfcs/rfc2535.html]
# 2671 - Extension Mechanisms for DNS (EDNS0) [http://www.faqs.org/rfcs/rfc2671.html]
# 2782 - A DNS RR for specifying the location of services (DNS SRV) [http://www.faqs.org/rfcs/rfc2782.html]
# 2930 - Secret Key Establishment for DNS (TKEY RR) [http://www.faqs.org/rfcs/rfc2930.html]
# 3645 - Generic Security Service Algorithm for Secret Key Transaction Authentication for DNS (GSS-TSIG) [http://www.faqs.org/rfcs/rfc3645.html]
# 3646 - DNS Configuration options for Dynamic Host Configuration Protocol for IPv6 (DHCPv6) [http://www.faqs.org/rfcs/rfc3646.html]
#
import socket
import struct
from ImpactPacket import ProtocolPacket
class DNSFlags():
'Bitmap with the flags of a dns packet.'
# QR - Query/Response - 1 bit
QR_QUERY = int("0000000000000000", 2)
QR_RESPONSE = int("1000000000000000", 2)
# OP - Opcode - 4 bits
OP_STANDARD_QUERY = int("0000000000000000", 2) # Standard query.
OP_INVERSE_QUERY = int("0100000000000000", 2) # Inverse query.
OP_STATUS_QUERY = int("0010000000000000", 2) # Server status request.
OP_NOTIFY = int("0000100000000000", 2) # Notify.
OP_UPDATE = int("0100100000000000", 2) # Update.
# AA - Authority Answer - 1 bit
AA_NOT_AUTH_ANSWER = int("0000000000000000", 2) # Not authoritative.
AA_AUTH_ANSWER = int("0000010000000000", 2) # Is authoritative.
# TC - Truncated - 1 bit
TC_NOT_TRUNCATED = int("0000000000000000", 2) # Not truncated.
TC_TRUNCATED = int("0000001000000000", 2) # Message truncated.
# RD - Recursion Desired - 1 bit
RD_NOT_RECURSIVE_QUERY = int("0000000000000000", 2) # Recursion not desired.
RD_RECURSIVE_QUERY = int("0000000100000000", 2) # Recursion desired.
# RA - Recursion Available - 1 bit
RA_NOT_AVAILABLE = int("0000000000000000", 2) # Recursive query support not available.
RA_AVAILABLE = int("0000000010000000", 2) # Recursive query support available.
# Z - 3 bits
Z = int("0000000000000000", 2)
# AD - Authenticated Data - 1 bit
AUTHENTICATED_DATA = int("0000000000100000", 2)
# CD - Checking Disabled - 1 bit
CHECKING_DISABLED = int("0000000000010000", 2)
# RCODE - 4 bits
RCODE_NO_ERROR = int("0000000000000000", 2) # The request completed successfully.
RCODE_FORMAT_ERROR = int("0000000000001000", 2) # The name server was unable to interpret the query.
RCODE_SERVER_FAILURE = int("0000000000000100", 2) # The name server was unable to process this query due to a problem with the name server.
RCODE_NAME_ERROR = int("0000000000001100", 2) # Meaningful only for responses from an authoritative name server, this code signifies that the domain name referenced in the query does not exist.
RCODE_NOT_IMPLEMENTED = int("0000000000000010", 2) # Not Implemented. The name server does not support the requested kind of query.
RCODE_REFUSED = int("0000000000001010", 2) # The name server refuses to perform the specified operation for policy reasons.
RCODE_YXDOMAIN = int("0000000000000110", 2) # Name Exists when it should not.
RCODE_YXRRSET = int("0000000000001110", 2) # RR Set Exists when it should not.
RCODE_NXRRSET = int("0000000000000001", 2) # RR Set that should exist does not.
RCODE_NOAUTH = int("0000000000001001", 2) # Server Not Authoritative for zone.
RCODE_NOTZONE = int("0000000000000101", 2) # Name not contained in zone.
class DNSType():
A = 1 # IPv4 address.
NS = 2 # Authoritative name server.
MD = 3 # Mail destination. Obsolete use MX instead.
MF = 4 # Mail forwarder. Obsolete use MX instead.
CNAME = 5 # Canonical name for an alias.
SOA = 6 # Marks the start of a zone of authority.
MB = 7 # Mailbox domain name.
MG = 8 # Mail group member.
MR = 9 # Mail rename domain name.
NULL = 10 # Null resource record.
WKS = 11 # Well known service description.
PTR = 12 # Domain name pointer.
HINFO = 13 # Host information.
MINFO = 14 # Mailbox or mail list information.
MX = 15 # Mail exchange.
TXT = 16 # Text strings.
RP = 17 # Responsible Person.
AFSDB = 18 # AFS Data Base location.
X25 = 19 # X.25 PSDN address.
ISDN = 20 # ISDN address.
RT = 21 # Route Through.
NSAP = 22 # NSAP address. NSAP style A record.
NSAP_PTR = 23 # NSAP pointer.
SIG = 24 # Security signature.
KEY = 25 # Security key.
PX = 26 # X.400 mail mapping information.
GPOS = 27 # Geographical Position.
AAAA = 28 # IPv6 Address.
LOC = 29 # Location Information.
NXT = 30 # Next Domain (obsolete).
EID = 31 # Endpoint Identifier.
NB = 32 # NetBIOS general Name Service.
NBSTAT = 33 # NetBIOS NODE STATUS.
ATMA = 34 # ATM Address.
NAPTR = 35 # Naming Authority Pointer.
KX = 36 # Key Exchanger.
CERT = 37
A6 = 38
DNAME = 39
SINK = 40
OPT = 41
APL = 42
DS = 43 # Delegation Signer.
SSHFP = 44 # SSH Key Fingerprint.
IPSECKEY = 45
RRSIG = 46
NSEC = 47 # NextSECure.
DNSKEY = 48
DHCID = 49 # DHCP identifier.
NSEC3 = 50
NSEC3PARAM = 51
HIP = 55 # Host Identity Protocol.
NINFO = 56
RKEY = 57
SPF = 99 # Sender Policy Framework.
UINFO = 100
UID = 101
GID = 102
UNSPEC = 103
TKEY = 249
TSIG = 250 # Transaction Signature.
IXFR = 251 # Incremental transfer.
AXFR = 252 # A request for a transfer of an entire zone.
MAILB = 253 # A request for mailbox-related records (MB, MG or MR).
MAILA = 254 # A request for mail agent RRs. Obsolete.
ALL = 255 # A request for all records.
DNSSEC = 32768 # Trust Authorities.
DNSSEC = 32769 # DNSSEC Lookaside Validation.
@staticmethod
def getTypeName(type):
for item, value in DNSType.__dict__.items():
if value == type:
return item
class DNSClass():
RESERVED = 0
IN = 1 # Internet.
CH = 3 # Chaos.
HS = 4 # Hesiod.
NONE = 254
ANY = 255 # QCLASS only
@staticmethod
def getClassName(type):
for item, value in DNSClass.__dict__.items():
if value == type:
return item
class DNS(ProtocolPacket):
'''The Message Header is present in all messages. Never empty.
Contains various flags and values which control the transaction.'''
__TYPE_LEN = 2 # Unsigned 16 bit value.
__CLASS_LEN = 2 # Unsigned 16 bit value.
__POINTER_LEN = 2 # A pointer is an unsigned 16-bit value.
__TTL_LEN = 4 # Unsigned 32 bit value. The time in seconds that the record may be cached.
__RDLENGTH_LEN = 2 # Unsigned 16-bit value that defines the length in bytes (octets) of the RDATA record.
__TYPE_A_LEN = 4 # Unsigned 32-bit value representing the IP address.
__SERIAL_LEN = 4 # Serial Number Unsigned 32-bit integer.
__REFRESH_LEN = 4 # Refresh interval Unsigned 32-bit integer.
__RETRY_LEN = 4 # Retry Interval Unsigned 32-bit integer.
__EXPIRATION_LEN = 4 # Expiration Limit Unsigned 32-bit integer.
__MINTTL_LEN = 4 # Minimum TTL Unsigned 32-bit integer.
__PREF_LEN = 2 # Preference Unsigned 16-bit integer.
__IS_POINTER = int("11000000", 2)
__OFFSETMASK = int("00111111", 2)
def __init__(self, aBuffer = None):
self.__HEADER_BASE_SIZE = 12
self.__TAIL_SIZE = 0
ProtocolPacket.__init__(self, self.__HEADER_BASE_SIZE, self.__TAIL_SIZE)
if aBuffer:
self.load_packet(aBuffer)
def get_transaction_id(self):
'Get 16 bit message ID.'
return self.header.get_word(0)
def set_transaction_id(self, value):
'Set 16 bit message ID.'
self.header.set_word(0, value)
def get_transaction_id_tcp(self):
'Get 16 bit message ID.'
return self.header.get_word(2)
def set_transaction_id_tcp(self, value):
'Set 16 bit message ID.'
self.header.set_word(2, value)
def get_flags(self):
'Get 16 bit flags.'
return self.header.get_word(2)
def set_flags(self, value):
'Set 16 bit flags.'
self.header.set_word(2, value)
def get_flags_tcp(self):
'Get 16 bit flags.'
return self.header.get_word(4)
def set_flags_tcp(self, value):
'Set 16 bit flags.'
self.header.set_word(4, value)
def get_qdcount(self):
'Get Unsigned 16 bit integer specifying the number of entries in the question section.'
return self.header.get_word(4)
def set_qdcount(self, value):
'Set Unsigned 16 bit integer specifying the number of entries in the question section.'
self.header.set_word(4, value)
def get_qdcount_tcp(self):
'Get Unsigned 16 bit integer specifying the number of entries in the question section.'
return self.header.get_word(6)
def set_qdcount_tcp(self, value):
'Set Unsigned 16 bit integer specifying the number of entries in the question section.'
self.header.set_word(6, value)
def get_ancount(self):
'Get Unsigned 16 bit integer specifying the number of resource records in the answer section'
return self.header.get_word(6)
def set_ancount(self, value):
'Set Unsigned 16 bit integer specifying the number of resource records in the answer section'
self.header.set_word(6, value)
def get_nscount(self):
'Get Unsigned 16 bit integer specifying the number of name server resource records in the authority section.'
return self.header.get_word(8)
def set_nscount(self, value):
'Set Unsigned 16 bit integer specifying the number of name server resource records in the authority section.'
self.header.set_word(8, value)
def get_arcount(self):
'Get Unsigned 16 bit integer specifying the number of resource records in the additional records section.'
return self.header.get_word(10)
def set_arcount(self, value):
'Set Unsigned 16 bit integer specifying the number of resource records in the additional records section.'
self.header.set_word(10, value)
def get_questions(self):
'Get a list of the DNS Question.'
return self.__get_questions()[0]
def __get_questions(self):
aux = []
offset = 0
qdcount = self.get_qdcount()
data = self.get_body_as_string()
for _ in range(qdcount): # number of questions
offset, qname = self.parseCompressedMessage(data, offset)
qtype = data[offset:offset+self.__TYPE_LEN]
offset += self.__TYPE_LEN
qclass = data[offset:offset+self.__CLASS_LEN]
offset += self.__CLASS_LEN
qtype = struct.unpack("!H", qtype)[0]
qclass = struct.unpack("!H", qclass)[0]
aux.append((qname, qtype, qclass))
return (aux, offset)
def get_questions_tcp(self):
'Get a list of the DNS Question.'
return self.__get_questions_tcp()[0]
def __get_questions_tcp(self):
aux = []
offset = 2
qdcount = self.get_qdcount_tcp()
data = self.get_body_as_string()
for _ in range(qdcount): # number of questions
offset, qname = self.parseCompressedMessage(data, offset)
qtype = data[offset:offset+self.__TYPE_LEN]
offset += self.__TYPE_LEN
qclass = data[offset:offset+self.__CLASS_LEN]
offset += self.__CLASS_LEN
qtype = struct.unpack("!H", qtype)[0]
qclass = struct.unpack("!H", qclass)[0]
aux.append((qname, qtype, qclass))
return (aux, offset)
def parseCompressedMessage(self, buf, offset=0):
'Parse compressed message defined on rfc1035 4.1.4.'
if offset >= len(buf):
raise Exception("No more data to parse. Offset is bigger than length of buffer.")
byte = struct.unpack("B", buf[offset])[0]
# if the first two bits are ones (11000000=0xC0), the next bits are the offset
if byte & 0xC0 == 0xC0:
# It's a pointer
pointer = struct.unpack("!H", buf[offset:offset+2])[0] # network unsigned short
pointer = (pointer & 0x3FFF) - self.__HEADER_BASE_SIZE
offset += 2
name = self.parseCompressedMessage(buf, pointer)[1]
return (offset, name)
else:
# It's a label
if byte == 0x00:
offset += 1
return (offset, '')
offset += 1
name = buf[offset:offset+byte]
offset += byte
offset, unamed = self.parseCompressedMessage(buf, offset)
if not unamed:
return (offset, name)
else:
return (offset, name + "." + unamed)
def get_answers(self):
return self.__get_answers()[0]
def get_authoritative(self):
return self.__get_authoritative()[0]
def get_additionals(self):
return self.__get_additionals()[0]
def __get_answers(self):
offset = self.__get_questions()[1] # get the initial offset
ancount = self.get_ancount()
return self.__process_answer_structure(offset, ancount)
def __get_authoritative(self):
'Get a list of the DNS Authoritative.'
offset = self.__get_answers()[1] # get the initial offset
nscount = self.get_nscount()
return self.__process_answer_structure(offset, nscount)
def __get_additionals(self):
'Get a list of the DNS Additional Records.'
offset = self.__get_authoritative()[1] # get the initial offset
arcount = self.get_arcount()
return self.__process_answer_structure(offset, arcount)
def __process_answer_structure(self, offset, num):
aux = []
data = self.get_body_as_string()
for _ in range(num):
offset, qname = self.parseCompressedMessage(data, offset)
qtype = data[offset:offset+self.__TYPE_LEN]
qtype = struct.unpack("!H", qtype)[0]
offset += self.__TYPE_LEN
qclass = data[offset:offset+self.__CLASS_LEN]
qclass = struct.unpack("!H", qclass)[0]
offset += self.__CLASS_LEN
qttl_raw = data[offset:offset+self.__TTL_LEN]
qttl = struct.unpack("!L", qttl_raw)[0]
offset += self.__TTL_LEN
qrdlength = data[offset:offset+self.__RDLENGTH_LEN]
qrdlength = struct.unpack("!H", qrdlength)[0]
offset += self.__RDLENGTH_LEN
qrdata = {}
if qtype == DNSType.A:
# IP Address Unsigned 32-bit value representing the IP address
qrdata["IPAddress"] = socket.inet_ntoa(data[offset:offset+qrdlength])
offset += self.__TYPE_A_LEN
elif qtype == DNSType.SOA:
# Primary NS Variable length. The name of the Primary Master for the domain. May be a label, pointer or any combination.
offset, primaryNs = self.parseCompressedMessage(data, offset)
qrdata["PrimaryNS"] = primaryNs
# Admin MB Variable length. The administrator's mailbox. May be a label, pointer or any combination.
offset, adminMb = self.parseCompressedMessage(data, offset)
qrdata["AdminMB"] = adminMb
# Serial Number Unsigned 32-bit integer.
qrdata["SerialNumber"] = struct.unpack("!L", data[offset:offset+self.__SERIAL_LEN])[0]
offset += self.__SERIAL_LEN
# Refresh interval Unsigned 32-bit integer.
qrdata["RefreshInterval"] = struct.unpack("!L", data[offset:offset+self.__REFRESH_LEN])[0]
offset += self.__REFRESH_LEN
# Retry Interval Unsigned 32-bit integer.
qrdata["RetryInterval"] = struct.unpack("!L", data[offset:offset+self.__RETRY_LEN])[0]
offset += self.__RETRY_LEN
# Expiration Limit Unsigned 32-bit integer.
qrdata["ExpirationLimit"] = struct.unpack("!L", data[offset:offset+self.__EXPIRATION_LEN])[0]
offset += self.__EXPIRATION_LEN
# Minimum TTL Unsigned 32-bit integer.
qrdata["MinimumTTL"] = struct.unpack("!L", data[offset:offset+self.__MINTTL_LEN])[0]
offset += self.__MINTTL_LEN
elif qtype == DNSType.MX:
# Preference Unsigned 16-bit integer.
qrdata["Preference"] = struct.unpack("!H", data[offset:offset+self.__PREF_LEN])[0]
# Mail Exchanger The name host name that provides the service. May be a label, pointer or any combination.
offset, mailExch = self.parseCompressedMessage(data, offset)
qrdata["MailExchanger"] = mailExch
elif qtype == DNSType.PTR or qtype == DNSType.NS or qtype == DNSType.CNAME:
# Name The host name that represents the supplied IP address (in the case of a PTR) or the NS name for the supplied domain (in the case of NS). May be a label, pointer or any combination.
offset, name = self.parseCompressedMessage(data, offset)
qrdata["Name"] = name
elif qtype == DNSType.OPT:
# rfc2671 4.3
#NAME domain name empty (root domain)
#TYPE u_int16_t OPT
#CLASS u_int16_t sender's UDP payload size
#TTL u_int32_t extended RCODE and flags
#RDLEN u_int16_t describes RDATA
#RDATA octet stream {attribute,value} pairs
#udp_payload = qclass
udp_payload_size = qclass
ext_rcode = struct.unpack("B", qttl_raw[0])[0]
version = struct.unpack("B", qttl_raw[1])[0]
flags = struct.unpack("!H", qttl_raw[2:4])[0]
qrdata["RDATA"] = data[offset:offset+qrdlength]
offset += qrdlength
aux.append((qname, qtype, udp_payload_size, ext_rcode, version, flags, qrdata))
continue
else:
# We don't know how to parse it, just skip it
offset += qrdlength
aux.append((qname, qtype, qclass, qttl, qrdata))
return (aux, offset)
def get_header_size(self):
return self.__HEADER_BASE_SIZE
def __str__(self):
res = ""
id = self.get_transaction_id()
flags = self.get_flags()
qdcount = self.get_qdcount()
ancount = self.get_ancount()
nscount = self.get_nscount()
arcount = self.get_arcount()
res += "DNS "
if flags & DNSFlags.QR_RESPONSE:
res += "RESPONSE\n"
else:
res += "QUERY\n"
res += " - Transaction ID -- [0x%04x] %d\n" % (id, id)
res += " - Flags ----------- [0x%04x] %d\n" % (flags, flags)
res += " - QdCount --------- [0x%04x] %d\n" % (qdcount, qdcount)
res += " - AnCount --------- [0x%04x] %d\n" % (ancount, ancount)
res += " - NsCount --------- [0x%04x] %d\n" % (nscount, nscount)
res += " - ArCount --------- [0x%04x] %d\n" % (arcount, arcount)
if qdcount > 0:
res += " - Questions:\n"
questions = self.get_questions()
questions.reverse()
while(questions):
qname, qtype, qclass = questions.pop()
format = (qname, DNSType.getTypeName(qtype), qtype, DNSClass.getClassName(qclass), qclass)
res += " * Domain: %s - Type: %s [0x%04x] - Class: %s [0x%04x]\n" % format
if ancount > 0:
res += " - Answers:\n"
answers = self.get_answers()
answers.reverse()
while(answers):
qname, qtype, qclass, qttl, qrdata = answers.pop()
format = (qname, DNSType.getTypeName(qtype), qtype, DNSClass.getClassName(qclass), qclass, qttl, repr(qrdata))
res += " * Domain: %s - Type: %s [0x%04x] - Class: %s [0x%04x] - TTL: %d seconds - %s\n" % format
if nscount > 0:
res += " - Authoritative:\n"
authoritative = self.get_authoritative()
authoritative.reverse()
while(authoritative):
qname, qtype, qclass, qttl, qrdata = authoritative.pop()
format = (qname, DNSType.getTypeName(qtype), qtype, DNSClass.getClassName(qclass), qclass, qttl, repr(qrdata))
res += " * Domain: %s - Type: %s [0x%04x] - Class: %s [0x%04x] - TTL: %d seconds - %s\n" % format
if arcount > 0:
res += " - Additionals:\n"
additionals = self.get_additionals()
for additional in additionals:
qtype = additional[1]
if qtype == DNSType.OPT:
qname, qtype, udp_payload_size, ext_rcode, version, flags, qrdata = additional
format = (DNSType.getTypeName(qtype), qtype, udp_payload_size, ext_rcode, version, flags, repr(qrdata['RDATA']))
res += " * Name: <Root> - Type: %s [0x%04x] - udp payload size: [%d] - extended RCODE: [0x%02x] - EDNS0 version: [0x%02x] - Z Flags: [0x%02x] - RDATA: [%s]\n" % format
else:
qname, qtype, qclass, qttl, qrdata = additional
format = (qname, DNSType.getTypeName(qtype), qtype, DNSClass.getClassName(qclass), qclass, qttl, repr(qrdata))
res += " * Domain: %s - Type: %s [0x%04x] - Class: %s [0x%04x] - TTL: %d seconds - %s\n" % format
return res
def __get_questions_raw(self):
if self.get_qdcount() == 0:
return ''
questions_offset = self.__get_questions()[1]
raw_data = self.get_body_as_string()[:questions_offset]
return raw_data
def __get_answers_raw(self):
if self.get_ancount() == 0:
return ''
questions_offset = self.__get_questions()[1]
answers_offset = self.__get_answers()[1]
raw_data = self.get_body_as_string()[questions_offset: answers_offset]
return raw_data
def __get_authoritative_raw(self):
if self.get_nscount() == 0:
return ''
answers_offset = self.__get_answers()[1]
authoritative_offset = self.__get_authoritative()[1]
raw_data = self.get_body_as_string()[answers_offset:authoritative_offset]
return raw_data
def __get_additionals_raw(self):
if self.get_arcount() == 0:
return ''
authoritative_offset = self.__get_authoritative()[1]
raw_data = self.get_body_as_string()[authoritative_offset:]
return raw_data
def add_answer(self, answer_raw):
'''Add a raw answer'''
questions_raw = self.__get_questions_raw()
answers_raw = self.__get_answers_raw()
authoritative_raw = self.__get_authoritative_raw()
additionals_raw = self.__get_additionals_raw()
answers_raw += answer_raw
body = questions_raw + answers_raw + authoritative_raw + additionals_raw
self.load_body(body) # It breaks children hierarchy
# Increment the answer count
cur_answer_count = self.get_ancount()+1
self.set_ancount(cur_answer_count)
def is_edns0(self):
additionals = self.get_additionals()
for item in additionals:
response_type = item[1]
if response_type == DNSType.OPT:
return True
return False
if __name__ == "__main__":
pkts = [
"\x6a\x8c\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x03\x77\x77\x77" \
"\x05\x74\x61\x72\x74\x61\x03\x63\x6f\x6d\x00\x00\x01\x00\x01",
"\x6a\x8c\x81\x80\x00\x01\x00\x02\x00\x02\x00\x00\x03\x77\x77\x77" \
"\x05\x74\x61\x72\x74\x61\x03\x63\x6f\x6d\x00\x00\x01\x00\x01\xc0" \
"\x0c\x00\x05\x00\x01\x00\x00\x07\x08\x00\x02\xc0\x10\xc0\x10\x00" \
"\x01\x00\x01\x00\x00\x07\x08\x00\x04\x45\x59\x1f\xc7\xc0\x10\x00" \
"\x02\x00\x01\x00\x02\xa3\x00\x00\x0f\x03\x6e\x73\x31\x08\x62\x6c" \
"\x75\x65\x68\x6f\x73\x74\xc0\x16\xc0\x10\x00\x02\x00\x01\x00\x02" \
"\xa3\x00\x00\x06\x03\x6e\x73\x32\xc0\x4d",
"\x82\x75\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x03\x77\x77\x77" \
"\x04\x6a\x68\x6f\x6e\x03\x63\x6f\x6d\x00\x00\x01\x00\x01",
"\x82\x75\x81\x80\x00\x01\x00\x01\x00\x02\x00\x02\x03\x77\x77\x77" \
"\x04\x6a\x68\x6f\x6e\x03\x63\x6f\x6d\x00\x00\x01\x00\x01\xc0\x0c" \
"\x00\x01\x00\x01\x00\x00\x00\x05\x00\x04\xd1\x3b\xc3\x14\xc0\x10" \
"\x00\x02\x00\x01\x00\x00\x06\xf8\x00\x0f\x03\x6e\x73\x31\x08\x74" \
"\x72\x61\x66\x66\x69\x63\x7a\xc0\x15\xc0\x10\x00\x02\x00\x01\x00" \
"\x00\x06\xf8\x00\x06\x03\x6e\x73\x32\xc0\x3e\xc0\x3a\x00\x01\x00" \
"\x01\x00\x00\x00\x0d\x00\x04\xd1\x3b\xc2\xf6\xc0\x55\x00\x01\x00" \
"\x01\x00\x00\x00\x85\x00\x04\xd1\x3b\xc3\xf6",
"\xef\x55\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x04\x6d\x61\x69" \
"\x6c\x06\x67\x6f\x6f\x67\x6c\x65\x03\x63\x6f\x6d\x00\x00\x01\x00" \
"\x01",
"\xef\x55\x81\x80\x00\x01\x00\x04\x00\x04\x00\x04\x04\x6d\x61\x69" \
"\x6c\x06\x67\x6f\x6f\x67\x6c\x65\x03\x63\x6f\x6d\x00\x00\x01\x00" \
"\x01\xc0\x0c\x00\x05\x00\x01\x00\x00\x06\x79\x00\x0f\x0a\x67\x6f" \
"\x6f\x67\x6c\x65\x6d\x61\x69\x6c\x01\x6c\xc0\x11\xc0\x2d\x00\x01" \
"\x00\x01\x00\x00\x00\x77\x00\x04\xd1\x55\xc3\x53\xc0\x2d\x00\x01" \
"\x00\x01\x00\x00\x00\x77\x00\x04\xd1\x55\xc3\x12\xc0\x2d\x00\x01" \
"\x00\x01\x00\x00\x00\x77\x00\x04\xd1\x55\xc3\x13\xc0\x11\x00\x02" \
"\x00\x01\x00\x00\x00\x5d\x00\x06\x03\x6e\x73\x33\xc0\x11\xc0\x11" \
"\x00\x02\x00\x01\x00\x00\x00\x5d\x00\x06\x03\x6e\x73\x34\xc0\x11" \
"\xc0\x11\x00\x02\x00\x01\x00\x00\x00\x5d\x00\x06\x03\x6e\x73\x31" \
"\xc0\x11\xc0\x11\x00\x02\x00\x01\x00\x00\x00\x5d\x00\x06\x03\x6e" \
"\x73\x32\xc0\x11\xc0\x9c\x00\x01\x00\x01\x00\x00\x04\x4e\x00\x04" \
"\xd8\xef\x20\x0a\xc0\xae\x00\x01\x00\x01\x00\x00\x06\x64\x00\x04" \
"\xd8\xef\x22\x0a\xc0\x78\x00\x01\x00\x01\x00\x00\x00\x05\x00\x04" \
"\xd8\xef\x24\x0a\xc0\x8a\x00\x01\x00\x01\x00\x00\x00\x08\x00\x04" \
"\xd8\xef\x26\x0a"
]
for pkt in pkts:
d = DNS(pkt)
print d
|