projects / thirdparty / pdns.git / blame
| Commit | Line | Data |
|---|---|---|
| b7ed5e7b RG |
1 | #!/usr/bin/env python |
| 2 | import dns | |
| 3 | from dnsdisttests import DNSDistTest | |
| 4 | ||
| 5 | class TestSize(DNSDistTest): | |
| 6 | ||
| 7 | _payloadSize = 49 | |
| 8 | _config_template = """ | |
| 9 | addAction(PayloadSizeRule("smaller", %d), SpoofAction("192.0.2.1")) | |
| 10 | addAction(PayloadSizeRule("greater", %d), SpoofAction("192.0.2.2")) | |
| 11 | addAction(PayloadSizeRule("equal", %d), SpoofAction("192.0.2.3")) | |
| 12 | newServer{address="127.0.0.1:%d"} | |
| 13 | """ | |
| 14 | _config_params = ['_payloadSize', '_payloadSize', '_payloadSize', '_testServerPort'] | |
| 15 | ||
| 16 | def testPayloadSize(self): | |
| 17 | """ | |
| 18 | Size: Check that PayloadSizeRule works | |
| 19 | """ | |
| 20 | name = 'payload.size.tests.powerdns.com.' | |
| 21 | query = dns.message.make_query(name, 'A', 'IN') | |
| 22 | query.flags &= ~dns.flags.RD | |
| 23 | expectedResponse = dns.message.make_response(query) | |
| 24 | rrset = dns.rrset.from_text(name, | |
| 25 | 60, | |
| 26 | dns.rdataclass.IN, | |
| 27 | dns.rdatatype.A, | |
| 28 | '192.0.2.3') | |
| 29 | expectedResponse.answer.append(rrset) | |
| 3e3081b3 | 30 | self.assertEqual(len(query.to_wire()), self._payloadSize) |
| b7ed5e7b RG |
31 | |
| 32 | for method in ("sendUDPQuery", "sendTCPQuery"): | |
| 33 | sender = getattr(self, method) | |
| 34 | (_, receivedResponse) = sender(query, response=None, useQueue=False) | |
| 35 | self.assertTrue(receivedResponse) | |
| 36 | self.assertEqual(receivedResponse, expectedResponse) | |
| 3e3081b3 RG |
37 | |
| 38 | class TestTruncateOversizedResponse(DNSDistTest): | |
| 39 | ||
| 40 | _payloadSize = 512 | |
| 41 | _config_template = """ | |
| 42 | addResponseAction(PayloadSizeRule("greater", %d), TCResponseAction()) | |
| 43 | newServer{address="127.0.0.1:%d"} | |
| 44 | """ | |
| 45 | _config_params = ['_payloadSize', '_testServerPort'] | |
| 46 | ||
| 47 | def testTruncateOversizedResponse(self): | |
| 48 | """ | |
| 49 | Size: Truncate oversized response | |
| 50 | """ | |
| 51 | name = 'truncate-oversized.size.tests.powerdns.com.' | |
| 52 | query = dns.message.make_query(name, 'TXT', 'IN') | |
| 53 | query.flags &= ~dns.flags.RD | |
| 54 | expectedResponse = dns.message.make_response(query) | |
| 55 | expectedResponse.flags |= dns.flags.TC | |
| 56 | ||
| 57 | backendResponse = dns.message.make_response(query) | |
| 58 | content = '' | |
| 59 | for i in range(2): | |
| 60 | if len(content) > 0: | |
| 61 | content = content + ' ' | |
| 62 | content = content + 'A' * 255 | |
| 63 | rrset = dns.rrset.from_text(name, | |
| 64 | 3600, | |
| 65 | dns.rdataclass.IN, | |
| 66 | dns.rdatatype.TXT, | |
| 67 | content) | |
| 68 | backendResponse.answer.append(rrset) | |
| 69 | self.assertGreater(len(backendResponse.to_wire()), self._payloadSize) | |
| 70 | ||
| 71 | (receivedQuery, receivedResponse) = self.sendUDPQuery(query, response=backendResponse) | |
| 72 | self.assertTrue(receivedQuery) | |
| 73 | self.assertTrue(receivedResponse) | |
| 74 | self.assertEqual(receivedResponse, expectedResponse) | |
| 75 | ||
| 76 | (receivedQuery, receivedResponse) = self.sendTCPQuery(query, response=backendResponse) | |
| 77 | self.assertTrue(receivedQuery) | |
| 78 | self.assertTrue(receivedResponse) | |
| 79 | self.assertEqual(receivedResponse, backendResponse) |