net/dns/dns_test_util.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef NET_DNS_DNS_TEST_UTIL_H_
   6 #define NET_DNS_DNS_TEST_UTIL_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "net/dns/dns_client.h"
  14 #include "net/dns/dns_config_service.h"
  15 #include "net/dns/dns_protocol.h"
  16
  17 namespace net {
  18
  19 //-----------------------------------------------------------------------------
  20 // Query/response set for www.google.com, ID is fixed to 0.
  21 static const char kT0HostName[] = "www.google.com";
  22 static const uint16 kT0Qtype = dns_protocol::kTypeA;
  23 static const char kT0DnsName[] = {
  24   0x03, 'w', 'w', 'w',
  25   0x06, 'g', 'o', 'o', 'g', 'l', 'e',
  26   0x03, 'c', 'o', 'm',
  27   0x00
  28 };
  29 static const size_t kT0QuerySize = 32;
  30 static const uint8 kT0ResponseDatagram[] = {
  31   // response contains one CNAME for www.l.google.com and the following
  32   // IP addresses: 74.125.226.{179,180,176,177,178}
  33   0x00, 0x00, 0x81, 0x80, 0x00, 0x01, 0x00, 0x06,
  34   0x00, 0x00, 0x00, 0x00, 0x03, 0x77, 0x77, 0x77,
  35   0x06, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x03,
  36   0x63, 0x6f, 0x6d, 0x00, 0x00, 0x01, 0x00, 0x01,
  37   0xc0, 0x0c, 0x00, 0x05, 0x00, 0x01, 0x00, 0x01,
  38   0x4d, 0x13, 0x00, 0x08, 0x03, 0x77, 0x77, 0x77,
  39   0x01, 0x6c, 0xc0, 0x10, 0xc0, 0x2c, 0x00, 0x01,
  40   0x00, 0x01, 0x00, 0x00, 0x00, 0xe4, 0x00, 0x04,
  41   0x4a, 0x7d, 0xe2, 0xb3, 0xc0, 0x2c, 0x00, 0x01,
  42   0x00, 0x01, 0x00, 0x00, 0x00, 0xe4, 0x00, 0x04,
  43   0x4a, 0x7d, 0xe2, 0xb4, 0xc0, 0x2c, 0x00, 0x01,
  44   0x00, 0x01, 0x00, 0x00, 0x00, 0xe4, 0x00, 0x04,
  45   0x4a, 0x7d, 0xe2, 0xb0, 0xc0, 0x2c, 0x00, 0x01,
  46   0x00, 0x01, 0x00, 0x00, 0x00, 0xe4, 0x00, 0x04,
  47   0x4a, 0x7d, 0xe2, 0xb1, 0xc0, 0x2c, 0x00, 0x01,
  48   0x00, 0x01, 0x00, 0x00, 0x00, 0xe4, 0x00, 0x04,
  49   0x4a, 0x7d, 0xe2, 0xb2
  50 };
  51 static const char* const kT0IpAddresses[] = {
  52   "74.125.226.179", "74.125.226.180", "74.125.226.176",
  53   "74.125.226.177", "74.125.226.178"
  54 };
  55 static const char kT0CanonName[] = "www.l.google.com";
  56 static const int kT0TTL = 0x000000e4;
  57 // +1 for the CNAME record.
  58 static const unsigned kT0RecordCount = arraysize(kT0IpAddresses) + 1;
  59
  60 //-----------------------------------------------------------------------------
  61 // Query/response set for codereview.chromium.org, ID is fixed to 1.
  62 static const char kT1HostName[] = "codereview.chromium.org";
  63 static const uint16 kT1Qtype = dns_protocol::kTypeA;
  64 static const char kT1DnsName[] = {
  65   0x0a, 'c', 'o', 'd', 'e', 'r', 'e', 'v', 'i', 'e', 'w',
  66   0x08, 'c', 'h', 'r', 'o', 'm', 'i', 'u', 'm',
  67   0x03, 'o', 'r', 'g',
  68   0x00
  69 };
  70 static const size_t kT1QuerySize = 41;
  71 static const uint8 kT1ResponseDatagram[] = {
  72   // response contains one CNAME for ghs.l.google.com and the following
  73   // IP address: 64.233.169.121
  74   0x00, 0x01, 0x81, 0x80, 0x00, 0x01, 0x00, 0x02,
  75   0x00, 0x00, 0x00, 0x00, 0x0a, 0x63, 0x6f, 0x64,
  76   0x65, 0x72, 0x65, 0x76, 0x69, 0x65, 0x77, 0x08,
  77   0x63, 0x68, 0x72, 0x6f, 0x6d, 0x69, 0x75, 0x6d,
  78   0x03, 0x6f, 0x72, 0x67, 0x00, 0x00, 0x01, 0x00,
  79   0x01, 0xc0, 0x0c, 0x00, 0x05, 0x00, 0x01, 0x00,
  80   0x01, 0x41, 0x75, 0x00, 0x12, 0x03, 0x67, 0x68,
  81   0x73, 0x01, 0x6c, 0x06, 0x67, 0x6f, 0x6f, 0x67,
  82   0x6c, 0x65, 0x03, 0x63, 0x6f, 0x6d, 0x00, 0xc0,
  83   0x35, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x01,
  84   0x0b, 0x00, 0x04, 0x40, 0xe9, 0xa9, 0x79
  85 };
  86 static const char* const kT1IpAddresses[] = {
  87   "64.233.169.121"
  88 };
  89 static const char kT1CanonName[] = "ghs.l.google.com";
  90 static const int kT1TTL = 0x0000010b;
  91 // +1 for the CNAME record.
  92 static const unsigned kT1RecordCount = arraysize(kT1IpAddresses) + 1;
  93
  94 //-----------------------------------------------------------------------------
  95 // Query/response set for www.ccs.neu.edu, ID is fixed to 2.
  96 static const char kT2HostName[] = "www.ccs.neu.edu";
  97 static const uint16 kT2Qtype = dns_protocol::kTypeA;
  98 static const char kT2DnsName[] = {
  99   0x03, 'w', 'w', 'w',
 100   0x03, 'c', 'c', 's',
 101   0x03, 'n', 'e', 'u',
 102   0x03, 'e', 'd', 'u',
 103   0x00
 104 };
 105 static const size_t kT2QuerySize = 33;
 106 static const uint8 kT2ResponseDatagram[] = {
 107   // response contains one CNAME for vulcan.ccs.neu.edu and the following
 108   // IP address: 129.10.116.81
 109   0x00, 0x02, 0x81, 0x80, 0x00, 0x01, 0x00, 0x02,
 110   0x00, 0x00, 0x00, 0x00, 0x03, 0x77, 0x77, 0x77,
 111   0x03, 0x63, 0x63, 0x73, 0x03, 0x6e, 0x65, 0x75,
 112   0x03, 0x65, 0x64, 0x75, 0x00, 0x00, 0x01, 0x00,
 113   0x01, 0xc0, 0x0c, 0x00, 0x05, 0x00, 0x01, 0x00,
 114   0x00, 0x01, 0x2c, 0x00, 0x09, 0x06, 0x76, 0x75,
 115   0x6c, 0x63, 0x61, 0x6e, 0xc0, 0x10, 0xc0, 0x2d,
 116   0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x01, 0x2c,
 117   0x00, 0x04, 0x81, 0x0a, 0x74, 0x51
 118 };
 119 static const char* const kT2IpAddresses[] = {
 120   "129.10.116.81"
 121 };
 122 static const char kT2CanonName[] = "vulcan.ccs.neu.edu";
 123 static const int kT2TTL = 0x0000012c;
 124 // +1 for the CNAME record.
 125 static const unsigned kT2RecordCount = arraysize(kT2IpAddresses) + 1;
 126
 127 //-----------------------------------------------------------------------------
 128 // Query/response set for www.google.az, ID is fixed to 3.
 129 static const char kT3HostName[] = "www.google.az";
 130 static const uint16 kT3Qtype = dns_protocol::kTypeA;
 131 static const char kT3DnsName[] = {
 132   0x03, 'w', 'w', 'w',
 133   0x06, 'g', 'o', 'o', 'g', 'l', 'e',
 134   0x02, 'a', 'z',
 135   0x00
 136 };
 137 static const size_t kT3QuerySize = 31;
 138 static const uint8 kT3ResponseDatagram[] = {
 139   // response contains www.google.com as CNAME for www.google.az and
 140   // www.l.google.com as CNAME for www.google.com and the following
 141   // IP addresses: 74.125.226.{178,179,180,176,177}
 142   // The TTLs on the records are: 0x00015099, 0x00025099, 0x00000415,
 143   // 0x00003015, 0x00002015, 0x00000015, 0x00001015.
 144   // The last record is an imaginary TXT record for t.google.com.
 145   0x00, 0x03, 0x81, 0x80, 0x00, 0x01, 0x00, 0x08,
 146   0x00, 0x00, 0x00, 0x00, 0x03, 0x77, 0x77, 0x77,
 147   0x06, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x02,
 148   0x61, 0x7a, 0x00, 0x00, 0x01, 0x00, 0x01, 0xc0,
 149   0x0c, 0x00, 0x05, 0x00, 0x01, 0x00, 0x01, 0x50,
 150   0x99, 0x00, 0x10, 0x03, 0x77, 0x77, 0x77, 0x06,
 151   0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x03, 0x63,
 152   0x6f, 0x6d, 0x00, 0xc0, 0x2b, 0x00, 0x05, 0x00,
 153   0x01, 0x00, 0x02, 0x50, 0x99, 0x00, 0x08, 0x03,
 154   0x77, 0x77, 0x77, 0x01, 0x6c, 0xc0, 0x2f, 0xc0,
 155   0x47, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x04,
 156   0x15, 0x00, 0x04, 0x4a, 0x7d, 0xe2, 0xb2, 0xc0,
 157   0x47, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x30,
 158   0x15, 0x00, 0x04, 0x4a, 0x7d, 0xe2, 0xb3, 0xc0,
 159   0x47, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x20,
 160   0x15, 0x00, 0x04, 0x4a, 0x7d, 0xe2, 0xb4, 0xc0,
 161   0x47, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00,
 162   0x15, 0x00, 0x04, 0x4a, 0x7d, 0xe2, 0xb0, 0xc0,
 163   0x47, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x10,
 164   0x15, 0x00, 0x04, 0x4a, 0x7d, 0xe2, 0xb1, 0x01,
 165   0x74, 0xc0, 0x2f, 0x00, 0x10, 0x00, 0x01, 0x00,
 166   0x00, 0x00, 0x01, 0x00, 0x04, 0xde, 0xad, 0xfe,
 167   0xed
 168 };
 169 static const char* const kT3IpAddresses[] = {
 170   "74.125.226.178", "74.125.226.179", "74.125.226.180",
 171   "74.125.226.176", "74.125.226.177"
 172 };
 173 static const char kT3CanonName[] = "www.l.google.com";
 174 static const int kT3TTL = 0x00000015;
 175 // +2 for the CNAME records, +1 for TXT record.
 176 static const unsigned kT3RecordCount = arraysize(kT3IpAddresses) + 3;
 177
 178 class AddressSorter;
 179 class DnsClient;
 180 class MockTransactionFactory;
 181
 182 struct MockDnsClientRule {
 183   enum Result {
 184     FAIL,     // Fail asynchronously with ERR_NAME_NOT_RESOLVED.
 185     TIMEOUT,  // Fail asynchronously with ERR_DNS_TIMEOUT.
 186     EMPTY,    // Return an empty response.
 187     OK,       // Return a response with loopback address.
 188   };
 189
 190   // If |delay| is true, matching transactions will be delayed until triggered
 191   // by the consumer.
 192   MockDnsClientRule(const std::string& prefix_arg,
 193                     uint16 qtype_arg,
 194                     Result result_arg,
 195                     bool delay)
 196       : result(result_arg), prefix(prefix_arg), qtype(qtype_arg),
 197         delay(delay) {}
 198
 199   Result result;
 200   std::string prefix;
 201   uint16 qtype;
 202   bool delay;
 203 };
 204
 205 typedef std::vector<MockDnsClientRule> MockDnsClientRuleList;
 206
 207 // MockDnsClient provides MockTransactionFactory.
 208 class MockDnsClient : public DnsClient {
 209  public:
 210   MockDnsClient(const DnsConfig& config, const MockDnsClientRuleList& rules);
 211   ~MockDnsClient() override;
 212
 213   // DnsClient interface:
 214   void SetConfig(const DnsConfig& config) override;
 215   const DnsConfig* GetConfig() const override;
 216   DnsTransactionFactory* GetTransactionFactory() override;
 217   AddressSorter* GetAddressSorter() override;
 218
 219   // Completes all DnsTransactions that were delayed by a rule.
 220   void CompleteDelayedTransactions();
 221
 222  private:
 223   DnsConfig config_;
 224   scoped_ptr<MockTransactionFactory> factory_;
 225   scoped_ptr<AddressSorter> address_sorter_;
 226 };
 227
 228 }  // namespace net
 229
 230 #endif  // NET_DNS_DNS_TEST_UTIL_H_