def test_answer_2(self):
#prepare the packet
a_packet = DnsPacket(False)
a_packet.id = 38784
a_packet.RA = True
a_packet.OpCode = OpCode.NOTIFY
a_packet.RCODE = RCode.REFUSED
a_packet.question_records.append(
DnsQRecord('test.local.', DnsType.A, DnsClass.IN))
a_packet.question_records.append(
DnsQRecord('_service.test.local.', DnsType.ANY, DnsClass.ANY))
a_packet.answer_records.append(
DnsRRecordNotImplemented('test._tcp.local.', DnsType.TXT,
DnsClass.CS, 120, 8, b'test1234'))
a_packet.answer_records.append(
DnsRRecordA('test.local.', 60, '127.0.0.2'))
a_packet.answer_records.append(
DnsRRecordA('test.local.', 240, '127.0.0.3'))
a_packet.authority_records.append(
DnsRRecordNotImplemented('test.local.', DnsType.NS, DnsClass.IN,
1000, 18, b'test1.test2.local.'))
a_packet.additional_records.append(
DnsRRecordAAAA('test.local.', 120, '1::4'))
a_packet.additional_records.append(
DnsRRecordNotImplemented(
'_service.test.local.', DnsType.SRV, DnsClass.IN, 4500, 18,
b'\x00\x00\x00\x00\x00\x15\x09_service1\xc0\x0c'))
#test encoding
self.assertEqual(
a_packet.encode(),
b'\x97\x80\xa0\x85\x00\x02\x00\x03\x00\x01\x00\x02\x04test\x05local\x00\x00\x01\x00\x01\x08_service\xc0\x0c\x00\xff\x00\xff\x04test\x04_tcp\xc0\x11\x00\x10\x00\x02\x00\x00\x00x\x00\x08test1234\xc0\x0c\x00\x01\x00\x01\x00\x00\x00<\x00\x04\x7f\x00\x00\x02\xc0\x0c\x00\x01\x00\x01\x00\x00\x00\xf0\x00\x04\x7f\x00\x00\x03\xc0\x0c\x00\x02\x00\x01\x00\x00\x03\xe8\x00\x12test1.test2.local.\xc0\x0c\x00\x1c\x00\x01\x00\x00\x00x\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\xc0\x1c\x00!\x00\x01\x00\x00\x11\x94\x00\x12\x00\x00\x00\x00\x00\x15\t_service1\xc0\x0c'
)
def test_query_1(self):
#prepare the packet
q_packet = DnsPacket(True)
q_packet.id = 0
q_packet.AA = True
q_packet.RD = True
q_packet.question_records.append(
DnsQRecord('test.local.', DnsType.A, DnsClass.IN))
q_packet.question_records.append(
DnsQRecord('_service.test.local.', DnsType.ANY, DnsClass.IN))
q_packet.question_records.append(
DnsQRecord('test._tcp.local.', DnsType.TXT, DnsClass.IN))
#test encoding
self.assertEqual(
q_packet.encode(),
b'\x00\x00\x05\x00\x00\x03\x00\x00\x00\x00\x00\x00\x04test\x05local\x00\x00\x01\x00\x01\x08_service\xc0\x0c\x00\xff\x00\x01\x04test\x04_tcp\xc0\x11\x00\x10\x00\x01'
)
def test_IPv6_address_query_1(self):
query = DnsPacket(True)
question = DnsQRecord('test.local.', DnsType.AAAA, DnsClass.IN)
#we cannot use multicast on localhost, so force unicast reply
question.prefer_unicast = True
query.question_records.append(question)
self.__sock.sendto(query.encode(), self.__mdns_address)
data = self.__sock.recv(8192)
reply = DnsPacket.decode(data)
self.assertEqual(query.question_records[0], reply.question_records[0])
#answer record
self.assertEqual(reply.answer_records[0].name, 'test.local.')
self.assertEqual(reply.answer_records[0].record_type, DnsType.AAAA)
self.assertEqual(reply.answer_records[0].record_class, DnsClass.IN)
self.assertEqual(reply.answer_records[0].ttl, 120)
self.assertEqual(reply.answer_records[0].address, '::1')
#additional record
self.assertEqual(reply.additional_records[0].name, 'test.local.')
self.assertEqual(reply.additional_records[0].record_type, DnsType.A)
self.assertEqual(reply.additional_records[0].record_class, DnsClass.IN)
self.assertEqual(reply.additional_records[0].ttl, 120)
self.assertEqual(reply.additional_records[0].address, '127.0.0.1')
def test_query_2(self):
#prepare the packet
q_packet = DnsPacket(True)
q_packet.id = 38784
q = DnsQRecord('test.local.', DnsType.A, DnsClass.IN)
q.prefer_unicast = True
q_packet.question_records.append(q)
q = DnsQRecord('_service.test.local.', DnsType.ANY, DnsClass.ANY)
q.prefer_unicast = True
q_packet.question_records.append(q)
#test encoding
self.assertEqual(
q_packet.encode(False),
b'\x97\x80\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x04test\x05local\x00\x00\x01\x80\x01\x08_service\x04test\x05local\x00\x00\xff\x80\xff'
)