projects / thirdparty / pdns.git / blame
| Commit | Line | Data |
|---|---|---|
| b8db58a2 | 1 | #!/usr/bin/env python |
| b8db58a2 | 2 | import time |
| b1bec9f0 RG |
3 | import dns |
| 4 | import dns.message | |
| b8db58a2 RG |
5 | from dnsdisttests import DNSDistTest |
| 6 | import dnscrypt | |
| 7 | ||
| 8 | class TestDNSCrypt(DNSDistTest): | |
| 9 | """ | |
| 10 | dnsdist is configured to accept DNSCrypt queries on 127.0.0.1:_dnsDistPortDNSCrypt. | |
| 11 | The provider's keys have been generated with: | |
| 12 | generateDNSCryptProviderKeys("DNSCryptProviderPublic.key", "DNSCryptProviderPrivate.key") | |
| 13 | Be careful to change the _providerFingerprint below if you want to regenerate the keys. | |
| 14 | """ | |
| 15 | ||
| 16 | _dnsDistPort = 5340 | |
| 17 | _dnsDistPortDNSCrypt = 8443 | |
| 18 | _config_template = """ | |
| bd64cc44 | 19 | generateDNSCryptCertificate("DNSCryptProviderPrivate.key", "DNSCryptResolver.cert", "DNSCryptResolver.key", %d, %d, %d) |
| b8db58a2 RG |
20 | addDNSCryptBind("127.0.0.1:%d", "%s", "DNSCryptResolver.cert", "DNSCryptResolver.key") |
| 21 | newServer{address="127.0.0.1:%s"} | |
| 22 | """ | |
| 23 | ||
| b8db58a2 RG |
24 | _providerFingerprint = 'E1D7:2108:9A59:BF8D:F101:16FA:ED5E:EA6A:9F6C:C78F:7F91:AF6B:027E:62F4:69C3:B1AA' |
| 25 | _providerName = "2.provider.name" | |
| bd64cc44 RG |
26 | _resolverCertificateSerial = 42 |
| 27 | # valid from 60s ago until 2h from now | |
| 28 | _resolverCertificateValidFrom = time.time() - 60 | |
| 29 | _resolverCertificateValidUntil = time.time() + 7200 | |
| 30 | _config_params = ['_resolverCertificateSerial', '_resolverCertificateValidFrom', '_resolverCertificateValidUntil', '_dnsDistPortDNSCrypt', '_providerName', '_testServerPort'] | |
| 617dfe22 | 31 | _dnsdistStartupDelay = 10 |
| b8db58a2 RG |
32 | |
| 33 | def testSimpleA(self): | |
| 34 | """ | |
| 617dfe22 | 35 | DNSCrypt: encrypted A query |
| b8db58a2 RG |
36 | """ |
| 37 | client = dnscrypt.DNSCryptClient(self._providerName, self._providerFingerprint, "127.0.0.1", 8443) | |
| 38 | name = 'a.dnscrypt.tests.powerdns.com.' | |
| 39 | query = dns.message.make_query(name, 'A', 'IN') | |
| 40 | response = dns.message.make_response(query) | |
| 41 | rrset = dns.rrset.from_text(name, | |
| 42 | 3600, | |
| 43 | dns.rdataclass.IN, | |
| 44 | dns.rdatatype.A, | |
| fcffc585 | 45 | '192.2.0.1') |
| b8db58a2 RG |
46 | response.answer.append(rrset) |
| 47 | ||
| 48 | self._toResponderQueue.put(response) | |
| 49 | data = client.query(query.to_wire()) | |
| 50 | receivedResponse = dns.message.from_wire(data) | |
| 51 | receivedQuery = None | |
| 52 | if not self._fromResponderQueue.empty(): | |
| 53 | receivedQuery = self._fromResponderQueue.get(query) | |
| 54 | ||
| 55 | self.assertTrue(receivedQuery) | |
| 56 | self.assertTrue(receivedResponse) | |
| 57 | receivedQuery.id = query.id | |
| b8db58a2 RG |
58 | self.assertEquals(query, receivedQuery) |
| 59 | self.assertEquals(response, receivedResponse) | |
| 60 | ||
| fcffc585 RG |
61 | self._toResponderQueue.put(response) |
| 62 | data = client.query(query.to_wire(), tcp=True) | |
| 63 | receivedResponse = dns.message.from_wire(data) | |
| 64 | receivedQuery = None | |
| 65 | if not self._fromResponderQueue.empty(): | |
| 66 | receivedQuery = self._fromResponderQueue.get(query) | |
| 67 | ||
| 68 | self.assertTrue(receivedQuery) | |
| 69 | self.assertTrue(receivedResponse) | |
| 70 | receivedQuery.id = query.id | |
| 71 | self.assertEquals(query, receivedQuery) | |
| 72 | self.assertEquals(response, receivedResponse) | |
| 73 | ||
| bd64cc44 RG |
74 | def testResponseLargerThanPaddedQuery(self): |
| 75 | """ | |
| 617dfe22 RG |
76 | DNSCrypt: response larger than query |
| 77 | ||
| bd64cc44 RG |
78 | Send a small encrypted query (don't forget to take |
| 79 | the padding into account) and check that the response | |
| 80 | is truncated. | |
| 81 | """ | |
| 82 | client = dnscrypt.DNSCryptClient(self._providerName, self._providerFingerprint, "127.0.0.1", 8443) | |
| 83 | name = 'smallquerylargeresponse.dnscrypt.tests.powerdns.com.' | |
| 84 | query = dns.message.make_query(name, 'TXT', 'IN', use_edns=True, payload=4096) | |
| 85 | response = dns.message.make_response(query) | |
| 86 | rrset = dns.rrset.from_text(name, | |
| 87 | 3600, | |
| 88 | dns.rdataclass.IN, | |
| 89 | dns.rdatatype.TXT, | |
| 90 | 'A'*255) | |
| 91 | response.answer.append(rrset) | |
| 92 | ||
| 93 | self._toResponderQueue.put(response) | |
| 94 | data = client.query(query.to_wire()) | |
| 95 | receivedQuery = None | |
| 96 | if not self._fromResponderQueue.empty(): | |
| 97 | receivedQuery = self._fromResponderQueue.get(query) | |
| 98 | ||
| 99 | receivedResponse = dns.message.from_wire(data) | |
| 100 | ||
| 101 | self.assertTrue(receivedQuery) | |
| 102 | receivedQuery.id = query.id | |
| 103 | self.assertEquals(query, receivedQuery) | |
| 104 | self.assertEquals(receivedResponse.question, response.question) | |
| 105 | self.assertTrue(receivedResponse.flags & ~dns.flags.TC) | |
| 106 | self.assertTrue(len(receivedResponse.answer) == 0) | |
| 107 | self.assertTrue(len(receivedResponse.authority) == 0) | |
| 108 | self.assertTrue(len(receivedResponse.additional) == 0) | |
| 109 | ||
| fcffc585 RG |
110 | class TestDNSCryptWithCache(DNSDistTest): |
| 111 | _dnsDistPortDNSCrypt = 8443 | |
| 112 | _providerFingerprint = 'E1D7:2108:9A59:BF8D:F101:16FA:ED5E:EA6A:9F6C:C78F:7F91:AF6B:027E:62F4:69C3:B1AA' | |
| 113 | _providerName = "2.provider.name" | |
| 114 | _resolverCertificateSerial = 42 | |
| 115 | # valid from 60s ago until 2h from now | |
| 116 | _resolverCertificateValidFrom = time.time() - 60 | |
| 117 | _resolverCertificateValidUntil = time.time() + 7200 | |
| 118 | _config_params = ['_resolverCertificateSerial', '_resolverCertificateValidFrom', '_resolverCertificateValidUntil', '_dnsDistPortDNSCrypt', '_providerName', '_testServerPort'] | |
| 119 | _config_template = """ | |
| 120 | generateDNSCryptCertificate("DNSCryptProviderPrivate.key", "DNSCryptResolver.cert", "DNSCryptResolver.key", %d, %d, %d) | |
| 121 | addDNSCryptBind("127.0.0.1:%d", "%s", "DNSCryptResolver.cert", "DNSCryptResolver.key") | |
| 122 | pc = newPacketCache(5, 86400, 1) | |
| 123 | getPool(""):setCache(pc) | |
| 124 | newServer{address="127.0.0.1:%s"} | |
| 125 | """ | |
| 126 | ||
| 127 | def testCachedSimpleA(self): | |
| 128 | """ | |
| 129 | DNSCrypt: encrypted A query served from cache | |
| 130 | """ | |
| 131 | client = dnscrypt.DNSCryptClient(self._providerName, self._providerFingerprint, "127.0.0.1", 8443) | |
| 132 | name = 'cacheda.dnscrypt.tests.powerdns.com.' | |
| 133 | query = dns.message.make_query(name, 'A', 'IN') | |
| 134 | response = dns.message.make_response(query) | |
| 135 | rrset = dns.rrset.from_text(name, | |
| 136 | 3600, | |
| 137 | dns.rdataclass.IN, | |
| 138 | dns.rdatatype.A, | |
| 139 | '192.2.0.1') | |
| 140 | response.answer.append(rrset) | |
| 141 | ||
| 142 | # first query to fill the cache | |
| 143 | self._toResponderQueue.put(response) | |
| 144 | data = client.query(query.to_wire()) | |
| 145 | receivedResponse = dns.message.from_wire(data) | |
| 146 | receivedQuery = None | |
| 147 | if not self._fromResponderQueue.empty(): | |
| 148 | receivedQuery = self._fromResponderQueue.get(query) | |
| 149 | ||
| 150 | self.assertTrue(receivedQuery) | |
| 151 | self.assertTrue(receivedResponse) | |
| 152 | receivedQuery.id = query.id | |
| 153 | self.assertEquals(query, receivedQuery) | |
| 154 | self.assertEquals(response, receivedResponse) | |
| 155 | ||
| 156 | # second query should get a cached response | |
| 157 | data = client.query(query.to_wire()) | |
| 158 | receivedResponse = dns.message.from_wire(data) | |
| 159 | receivedQuery = None | |
| 160 | if not self._fromResponderQueue.empty(): | |
| 161 | receivedQuery = self._fromResponderQueue.get(query) | |
| 162 | ||
| 163 | self.assertEquals(receivedQuery, None) | |
| 164 | self.assertTrue(receivedResponse) | |
| 165 | self.assertEquals(response, receivedResponse) |