net/quic/crypto/quic_crypto_server_config_test.cc

   1 // Copyright 2013 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 #include "net/quic/crypto/quic_crypto_server_config.h"
   6
   7 #include <stdarg.h>
   8
   9 #include "base/stl_util.h"
  10 #include "net/quic/crypto/aes_128_gcm_12_encrypter.h"
  11 #include "net/quic/crypto/crypto_handshake_message.h"
  12 #include "net/quic/crypto/crypto_secret_boxer.h"
  13 #include "net/quic/crypto/crypto_server_config_protobuf.h"
  14 #include "net/quic/crypto/quic_random.h"
  15 #include "net/quic/crypto/strike_register_client.h"
  16 #include "net/quic/quic_flags.h"
  17 #include "net/quic/quic_time.h"
  18 #include "net/quic/test_tools/mock_clock.h"
  19 #include "net/quic/test_tools/quic_test_utils.h"
  20 #include "testing/gmock/include/gmock/gmock.h"
  21 #include "testing/gtest/include/gtest/gtest.h"
  22
  23 using base::StringPiece;
  24 using std::map;
  25 using std::pair;
  26 using std::string;
  27 using std::vector;
  28
  29 namespace net {
  30 namespace test {
  31
  32 class QuicCryptoServerConfigPeer {
  33  public:
  34   explicit QuicCryptoServerConfigPeer(QuicCryptoServerConfig* server_config)
  35       : server_config_(server_config) {}
  36
  37   scoped_refptr<QuicCryptoServerConfig::Config> GetConfig(string config_id) {
  38     base::AutoLock locked(server_config_->configs_lock_);
  39     if (config_id == "<primary>") {
  40       return scoped_refptr<QuicCryptoServerConfig::Config>(
  41           server_config_->primary_config_);
  42     } else {
  43       return server_config_->GetConfigWithScid(config_id);
  44     }
  45   }
  46
  47   bool ConfigHasDefaultSourceAddressTokenBoxer(string config_id) {
  48     scoped_refptr<QuicCryptoServerConfig::Config> config = GetConfig(config_id);
  49     return config->source_address_token_boxer ==
  50         &(server_config_->default_source_address_token_boxer_);
  51   }
  52
  53   string NewSourceAddressToken(string config_id,
  54                                SourceAddressTokens previous_tokens,
  55                                const IPAddressNumber& ip,
  56                                QuicRandom* rand,
  57                                QuicWallTime now,
  58                                CachedNetworkParameters* cached_network_params) {
  59     return server_config_->NewSourceAddressToken(*GetConfig(config_id),
  60                                                  previous_tokens, ip, rand, now,
  61                                                  cached_network_params);
  62   }
  63
  64   HandshakeFailureReason ValidateSourceAddressToken(string config_id,
  65                                                     StringPiece srct,
  66                                                     const IPAddressNumber& ip,
  67                                                     QuicWallTime now) {
  68     return ValidateSourceAddressToken(config_id, srct, ip, now, NULL);
  69   }
  70
  71   HandshakeFailureReason ValidateSourceAddressToken(
  72       string config_id,
  73       StringPiece srct,
  74       const IPAddressNumber& ip,
  75       QuicWallTime now,
  76       CachedNetworkParameters* cached_network_params) {
  77     return server_config_->ValidateSourceAddressToken(
  78         *GetConfig(config_id), srct, ip, now, cached_network_params);
  79   }
  80
  81   HandshakeFailureReason ValidateSourceAddressTokens(string config_id,
  82                                                      StringPiece srct,
  83                                                      const IPAddressNumber ip,
  84                                                      QuicWallTime now) {
  85     return ValidateSourceAddressTokens(config_id, srct, ip, now, NULL);
  86   }
  87
  88   HandshakeFailureReason ValidateSourceAddressTokens(
  89       string config_id,
  90       StringPiece srct,
  91       const IPAddressNumber& ip,
  92       QuicWallTime now,
  93       CachedNetworkParameters* cached_network_params) {
  94     SourceAddressTokens tokens;
  95     HandshakeFailureReason reason = server_config_->ParseSourceAddressToken(
  96         *GetConfig(config_id), srct, &tokens);
  97     if (reason != HANDSHAKE_OK) {
  98       return reason;
  99     }
 100
 101     return server_config_->ValidateSourceAddressTokens(tokens, ip, now,
 102                                                        cached_network_params);
 103   }
 104
 105   string NewServerNonce(QuicRandom* rand, QuicWallTime now) const {
 106     return server_config_->NewServerNonce(rand, now);
 107   }
 108
 109   HandshakeFailureReason ValidateServerNonce(StringPiece token,
 110                                              QuicWallTime now) {
 111     return server_config_->ValidateServerNonce(token, now);
 112   }
 113
 114   base::Lock* GetStrikeRegisterClientLock() {
 115     return &server_config_->strike_register_client_lock_;
 116   }
 117
 118   // CheckConfigs compares the state of the Configs in |server_config_| to the
 119   // description given as arguments. The arguments are given as
 120   // nullptr-terminated pairs. The first of each pair is the server config ID of
 121   // a Config. The second is a boolean describing whether the config is the
 122   // primary. For example:
 123   //   CheckConfigs(nullptr);  // checks that no Configs are loaded.
 124   //
 125   //   // Checks that exactly three Configs are loaded with the given IDs and
 126   //   // status.
 127   //   CheckConfigs(
 128   //     "id1", false,
 129   //     "id2", true,
 130   //     "id3", false,
 131   //     nullptr);
 132   void CheckConfigs(const char* server_config_id1, ...) {
 133     va_list ap;
 134     va_start(ap, server_config_id1);
 135
 136     vector<pair<ServerConfigID, bool> > expected;
 137     bool first = true;
 138     for (;;) {
 139       const char* server_config_id;
 140       if (first) {
 141         server_config_id = server_config_id1;
 142         first = false;
 143       } else {
 144         server_config_id = va_arg(ap, const char*);
 145       }
 146
 147       if (!server_config_id) {
 148         break;
 149       }
 150
 151       // varargs will promote the value to an int so we have to read that from
 152       // the stack and cast down.
 153       const bool is_primary = static_cast<bool>(va_arg(ap, int));
 154       expected.push_back(std::make_pair(server_config_id, is_primary));
 155     }
 156
 157     va_end(ap);
 158
 159     base::AutoLock locked(server_config_->configs_lock_);
 160
 161     ASSERT_EQ(expected.size(), server_config_->configs_.size())
 162         << ConfigsDebug();
 163
 164     for (QuicCryptoServerConfig::ConfigMap::const_iterator
 165              i = server_config_->configs_.begin();
 166          i != server_config_->configs_.end(); ++i) {
 167       bool found = false;
 168       for (vector<pair<ServerConfigID, bool> >::iterator j = expected.begin();
 169            j != expected.end(); ++j) {
 170         if (i->first == j->first && i->second->is_primary == j->second) {
 171           found = true;
 172           j->first.clear();
 173           break;
 174         }
 175       }
 176
 177       ASSERT_TRUE(found) << "Failed to find match for " << i->first
 178                          << " in configs:\n" << ConfigsDebug();
 179     }
 180   }
 181
 182   // ConfigsDebug returns a string that contains debugging information about
 183   // the set of Configs loaded in |server_config_| and their status.
 184   // ConfigsDebug() should be called after acquiring
 185   // server_config_->configs_lock_.
 186   string ConfigsDebug() {
 187     if (server_config_->configs_.empty()) {
 188       return "No Configs in QuicCryptoServerConfig";
 189     }
 190
 191     string s;
 192
 193     for (QuicCryptoServerConfig::ConfigMap::const_iterator
 194              i = server_config_->configs_.begin();
 195          i != server_config_->configs_.end(); ++i) {
 196       const scoped_refptr<QuicCryptoServerConfig::Config> config = i->second;
 197       if (config->is_primary) {
 198         s += "(primary) ";
 199       } else {
 200         s += "          ";
 201       }
 202       s += config->id;
 203       s += "\n";
 204     }
 205
 206     return s;
 207   }
 208
 209   void SelectNewPrimaryConfig(int seconds) {
 210     base::AutoLock locked(server_config_->configs_lock_);
 211     server_config_->SelectNewPrimaryConfig(
 212         QuicWallTime::FromUNIXSeconds(seconds));
 213   }
 214
 215  private:
 216   const QuicCryptoServerConfig* server_config_;
 217 };
 218
 219 class TestStrikeRegisterClient : public StrikeRegisterClient {
 220  public:
 221   explicit TestStrikeRegisterClient(QuicCryptoServerConfig* config)
 222       : config_(config),
 223         is_known_orbit_called_(false) {
 224   }
 225
 226   bool IsKnownOrbit(StringPiece orbit) const override {
 227     // Ensure that the strike register client lock is not held.
 228     QuicCryptoServerConfigPeer peer(config_);
 229     base::Lock* m = peer.GetStrikeRegisterClientLock();
 230     // In Chromium, we will dead lock if the lock is held by the current thread.
 231     // Chromium doesn't have AssertNotHeld API call.
 232     // m->AssertNotHeld();
 233     base::AutoLock lock(*m);
 234
 235     is_known_orbit_called_ = true;
 236     return true;
 237   }
 238
 239   void VerifyNonceIsValidAndUnique(StringPiece nonce,
 240                                    QuicWallTime now,
 241                                    ResultCallback* cb) override {
 242     LOG(FATAL) << "Not implemented";
 243   }
 244
 245   bool is_known_orbit_called() { return is_known_orbit_called_; }
 246
 247  private:
 248   QuicCryptoServerConfig* config_;
 249   mutable bool is_known_orbit_called_;
 250 };
 251
 252 TEST(QuicCryptoServerConfigTest, ServerConfig) {
 253   QuicRandom* rand = QuicRandom::GetInstance();
 254   QuicCryptoServerConfig server(QuicCryptoServerConfig::TESTING, rand);
 255   MockClock clock;
 256
 257   scoped_ptr<CryptoHandshakeMessage>(
 258       server.AddDefaultConfig(rand, &clock,
 259                               QuicCryptoServerConfig::ConfigOptions()));
 260 }
 261
 262 TEST(QuicCryptoServerConfigTest, GetOrbitIsCalledWithoutTheStrikeRegisterLock) {
 263   QuicRandom* rand = QuicRandom::GetInstance();
 264   QuicCryptoServerConfig server(QuicCryptoServerConfig::TESTING, rand);
 265   MockClock clock;
 266
 267   TestStrikeRegisterClient* strike_register =
 268       new TestStrikeRegisterClient(&server);
 269   server.SetStrikeRegisterClient(strike_register);
 270
 271   QuicCryptoServerConfig::ConfigOptions options;
 272   scoped_ptr<CryptoHandshakeMessage>(
 273       server.AddDefaultConfig(rand, &clock, options));
 274   EXPECT_TRUE(strike_register->is_known_orbit_called());
 275 }
 276
 277 class SourceAddressTokenTest : public ::testing::Test {
 278  public:
 279   SourceAddressTokenTest()
 280       : ip4_(Loopback4()),
 281         ip4_dual_(ConvertIPv4NumberToIPv6Number(ip4_)),
 282         ip6_(Loopback6()),
 283         original_time_(QuicWallTime::Zero()),
 284         rand_(QuicRandom::GetInstance()),
 285         server_(QuicCryptoServerConfig::TESTING, rand_),
 286         peer_(&server_) {
 287     // Advance the clock to some non-zero time.
 288     clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1000000));
 289     original_time_ = clock_.WallNow();
 290
 291     primary_config_.reset(server_.AddDefaultConfig(
 292         rand_, &clock_, QuicCryptoServerConfig::ConfigOptions()));
 293
 294     // Add a config that overrides the default boxer.
 295     QuicCryptoServerConfig::ConfigOptions options;
 296     options.id = kOverride;
 297     override_config_protobuf_.reset(
 298         QuicCryptoServerConfig::GenerateConfig(rand_, &clock_, options));
 299     override_config_protobuf_->set_source_address_token_secret_override(
 300         "a secret key");
 301     // Lower priority than the default config.
 302     override_config_protobuf_->set_priority(1);
 303     override_config_.reset(
 304         server_.AddConfig(override_config_protobuf_.get(), original_time_));
 305   }
 306
 307   string NewSourceAddressToken(string config_id, const IPAddressNumber& ip) {
 308     return NewSourceAddressToken(config_id, ip, NULL);
 309   }
 310
 311   string NewSourceAddressToken(string config_id,
 312                                const IPAddressNumber& ip,
 313                                const SourceAddressTokens& previous_tokens) {
 314     return peer_.NewSourceAddressToken(config_id, previous_tokens, ip, rand_,
 315                                        clock_.WallNow(), NULL);
 316   }
 317
 318   string NewSourceAddressToken(string config_id,
 319                                const IPAddressNumber& ip,
 320                                CachedNetworkParameters* cached_network_params) {
 321     SourceAddressTokens previous_tokens;
 322     return peer_.NewSourceAddressToken(config_id, previous_tokens, ip, rand_,
 323                                        clock_.WallNow(), cached_network_params);
 324   }
 325
 326   HandshakeFailureReason ValidateSourceAddressToken(string config_id,
 327                                                     StringPiece srct,
 328                                                     const IPAddressNumber& ip) {
 329     return ValidateSourceAddressToken(config_id, srct, ip, NULL);
 330   }
 331
 332   HandshakeFailureReason ValidateSourceAddressToken(
 333       string config_id,
 334       StringPiece srct,
 335       const IPAddressNumber& ip,
 336       CachedNetworkParameters* cached_network_params) {
 337     return peer_.ValidateSourceAddressToken(
 338         config_id, srct, ip, clock_.WallNow(), cached_network_params);
 339   }
 340
 341   HandshakeFailureReason ValidateSourceAddressTokens(
 342       string config_id,
 343       StringPiece srct,
 344       const IPAddressNumber& ip) {
 345     return ValidateSourceAddressTokens(config_id, srct, ip, NULL);
 346   }
 347
 348   HandshakeFailureReason ValidateSourceAddressTokens(
 349       string config_id,
 350       StringPiece srct,
 351       const IPAddressNumber& ip,
 352       CachedNetworkParameters* cached_network_params) {
 353     return peer_.ValidateSourceAddressTokens(
 354         config_id, srct, ip, clock_.WallNow(), cached_network_params);
 355   }
 356
 357   const string kPrimary = "<primary>";
 358   const string kOverride = "Config with custom source address token key";
 359
 360   IPAddressNumber ip4_;
 361   IPAddressNumber ip4_dual_;
 362   IPAddressNumber ip6_;
 363
 364   MockClock clock_;
 365   QuicWallTime original_time_;
 366   QuicRandom* rand_ = QuicRandom::GetInstance();
 367   QuicCryptoServerConfig server_;
 368   QuicCryptoServerConfigPeer peer_;
 369   // Stores the primary config.
 370   scoped_ptr<CryptoHandshakeMessage> primary_config_;
 371   scoped_ptr<QuicServerConfigProtobuf> override_config_protobuf_;
 372   scoped_ptr<CryptoHandshakeMessage> override_config_;
 373 };
 374
 375 TEST_F(SourceAddressTokenTest, SourceAddressToken) {
 376   ValueRestore<bool> old_flag(&FLAGS_quic_use_multiple_address_in_source_tokens,
 377                               false);
 378
 379   EXPECT_TRUE(peer_.ConfigHasDefaultSourceAddressTokenBoxer(kPrimary));
 380   EXPECT_FALSE(peer_.ConfigHasDefaultSourceAddressTokenBoxer(kOverride));
 381
 382   // Primary config generates configs that validate successfully.
 383   const string token4 = NewSourceAddressToken(kPrimary, ip4_);
 384   const string token4d = NewSourceAddressToken(kPrimary, ip4_dual_);
 385   const string token6 = NewSourceAddressToken(kPrimary, ip6_);
 386   EXPECT_EQ(HANDSHAKE_OK, ValidateSourceAddressToken(kPrimary, token4, ip4_));
 387   ASSERT_EQ(HANDSHAKE_OK,
 388             ValidateSourceAddressToken(kPrimary, token4, ip4_dual_));
 389   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DIFFERENT_IP_ADDRESS_FAILURE,
 390             ValidateSourceAddressToken(kPrimary, token4, ip6_));
 391   ASSERT_EQ(HANDSHAKE_OK, ValidateSourceAddressToken(kPrimary, token4d, ip4_));
 392   ASSERT_EQ(HANDSHAKE_OK,
 393             ValidateSourceAddressToken(kPrimary, token4d, ip4_dual_));
 394   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DIFFERENT_IP_ADDRESS_FAILURE,
 395             ValidateSourceAddressToken(kPrimary, token4d, ip6_));
 396   ASSERT_EQ(HANDSHAKE_OK, ValidateSourceAddressToken(kPrimary, token6, ip6_));
 397
 398   // Override config generates configs that validate successfully.
 399   const string override_token4 = NewSourceAddressToken(kOverride, ip4_);
 400   const string override_token6 = NewSourceAddressToken(kOverride, ip6_);
 401   ASSERT_EQ(HANDSHAKE_OK,
 402             ValidateSourceAddressToken(kOverride, override_token4, ip4_));
 403   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DIFFERENT_IP_ADDRESS_FAILURE,
 404             ValidateSourceAddressToken(kOverride, override_token4, ip6_));
 405   ASSERT_EQ(HANDSHAKE_OK,
 406             ValidateSourceAddressToken(kOverride, override_token6, ip6_));
 407
 408   // Tokens generated by the primary config do not validate
 409   // successfully against the override config, and vice versa.
 410   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE,
 411             ValidateSourceAddressToken(kOverride, token4, ip4_));
 412   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE,
 413             ValidateSourceAddressToken(kOverride, token6, ip6_));
 414   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE,
 415             ValidateSourceAddressToken(kPrimary, override_token4, ip4_));
 416   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE,
 417             ValidateSourceAddressToken(kPrimary, override_token6, ip6_));
 418 }
 419
 420 TEST_F(SourceAddressTokenTest, SourceAddressTokenExpiration) {
 421   ValueRestore<bool> old_flag(&FLAGS_quic_use_multiple_address_in_source_tokens,
 422                               false);
 423
 424   const string token = NewSourceAddressToken(kPrimary, ip4_);
 425
 426   // Validation fails if the token is from the future.
 427   clock_.AdvanceTime(QuicTime::Delta::FromSeconds(-3600 * 2));
 428   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_CLOCK_SKEW_FAILURE,
 429             ValidateSourceAddressToken(kPrimary, token, ip4_));
 430
 431   // Validation fails after tokens expire.
 432   clock_.AdvanceTime(QuicTime::Delta::FromSeconds(86400 * 7));
 433   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_EXPIRED_FAILURE,
 434             ValidateSourceAddressToken(kPrimary, token, ip4_));
 435 }
 436
 437 TEST_F(SourceAddressTokenTest, SourceAddressTokenWithNetworkParams) {
 438   ValueRestore<bool> old_flag(&FLAGS_quic_use_multiple_address_in_source_tokens,
 439                               false);
 440
 441   // Make sure that if the source address token contains CachedNetworkParameters
 442   // that this gets written to ValidateSourceAddressToken output argument.
 443   CachedNetworkParameters cached_network_params_input;
 444   cached_network_params_input.set_bandwidth_estimate_bytes_per_second(1234);
 445   const string token4_with_cached_network_params =
 446       NewSourceAddressToken(kPrimary, ip4_, &cached_network_params_input);
 447
 448   CachedNetworkParameters cached_network_params_output;
 449 #if 0
 450   // TODO(rtenneti): For server, enable the following check after serialization
 451   // of optional CachedNetworkParameters is implemented.
 452   EXPECT_NE(cached_network_params_output.DebugString(),
 453             cached_network_params_input.DebugString());
 454 #endif
 455   ValidateSourceAddressToken(kPrimary, token4_with_cached_network_params, ip4_,
 456                              &cached_network_params_output);
 457 #if 0
 458   // TODO(rtenneti): For server, enable the following check after serialization
 459   // of optional CachedNetworkParameters is implemented.
 460   EXPECT_EQ(cached_network_params_output.DebugString(),
 461             cached_network_params_input.DebugString());
 462 #endif
 463 }
 464
 465 // Test basic behavior of source address tokens including being specific
 466 // to a single IP address and server config.
 467 //
 468 // TODO(rtenneti): For server, enable the following test after serialization of
 469 // SourceAddressTokens is implemented.
 470 TEST_F(SourceAddressTokenTest, DISABLED_NewSourceAddressToken) {
 471   ValueRestore<bool> old_flag(&FLAGS_quic_use_multiple_address_in_source_tokens,
 472                               true);
 473
 474   // Primary config generates configs that validate successfully.
 475   const string token4 = NewSourceAddressToken(kPrimary, ip4_);
 476   const string token4d = NewSourceAddressToken(kPrimary, ip4_dual_);
 477   const string token6 = NewSourceAddressToken(kPrimary, ip6_);
 478   EXPECT_EQ(HANDSHAKE_OK, ValidateSourceAddressTokens(kPrimary, token4, ip4_));
 479   ASSERT_EQ(HANDSHAKE_OK,
 480             ValidateSourceAddressTokens(kPrimary, token4, ip4_dual_));
 481   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DIFFERENT_IP_ADDRESS_FAILURE,
 482             ValidateSourceAddressTokens(kPrimary, token4, ip6_));
 483   ASSERT_EQ(HANDSHAKE_OK, ValidateSourceAddressTokens(kPrimary, token4d, ip4_));
 484   ASSERT_EQ(HANDSHAKE_OK,
 485             ValidateSourceAddressTokens(kPrimary, token4d, ip4_dual_));
 486   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DIFFERENT_IP_ADDRESS_FAILURE,
 487             ValidateSourceAddressTokens(kPrimary, token4d, ip6_));
 488   ASSERT_EQ(HANDSHAKE_OK, ValidateSourceAddressTokens(kPrimary, token6, ip6_));
 489
 490   // Override config generates configs that validate successfully.
 491   const string override_token4 = NewSourceAddressToken(kOverride, ip4_);
 492   const string override_token6 = NewSourceAddressToken(kOverride, ip6_);
 493   ASSERT_EQ(HANDSHAKE_OK,
 494             ValidateSourceAddressTokens(kOverride, override_token4, ip4_));
 495   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DIFFERENT_IP_ADDRESS_FAILURE,
 496             ValidateSourceAddressTokens(kOverride, override_token4, ip6_));
 497   ASSERT_EQ(HANDSHAKE_OK,
 498             ValidateSourceAddressTokens(kOverride, override_token6, ip6_));
 499
 500   // Tokens generated by the primary config do not validate
 501   // successfully against the override config, and vice versa.
 502   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE,
 503             ValidateSourceAddressTokens(kOverride, token4, ip4_));
 504   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE,
 505             ValidateSourceAddressTokens(kOverride, token6, ip6_));
 506   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE,
 507             ValidateSourceAddressTokens(kPrimary, override_token4, ip4_));
 508   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE,
 509             ValidateSourceAddressTokens(kPrimary, override_token6, ip6_));
 510 }
 511
 512 // TODO(rtenneti): For server, enable the following test after serialization of
 513 // SourceAddressTokens is implemented.
 514 TEST_F(SourceAddressTokenTest, DISABLED_NewSourceAddressTokenExpiration) {
 515   ValueRestore<bool> old_flag(&FLAGS_quic_use_multiple_address_in_source_tokens,
 516                               true);
 517
 518   const string token = NewSourceAddressToken(kPrimary, ip4_);
 519
 520   // Validation fails if the token is from the future.
 521   clock_.AdvanceTime(QuicTime::Delta::FromSeconds(-3600 * 2));
 522   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_CLOCK_SKEW_FAILURE,
 523             ValidateSourceAddressTokens(kPrimary, token, ip4_));
 524
 525   // Validation fails after tokens expire.
 526   clock_.AdvanceTime(QuicTime::Delta::FromSeconds(86400 * 7));
 527   ASSERT_EQ(SOURCE_ADDRESS_TOKEN_EXPIRED_FAILURE,
 528             ValidateSourceAddressTokens(kPrimary, token, ip4_));
 529 }
 530
 531 TEST_F(SourceAddressTokenTest, NewSourceAddressTokenWithNetworkParams) {
 532   ValueRestore<bool> old_flag(&FLAGS_quic_use_multiple_address_in_source_tokens,
 533                               true);
 534
 535   // Make sure that if the source address token contains CachedNetworkParameters
 536   // that this gets written to ValidateSourceAddressToken output argument.
 537   CachedNetworkParameters cached_network_params_input;
 538   cached_network_params_input.set_bandwidth_estimate_bytes_per_second(1234);
 539   const string token4_with_cached_network_params =
 540       NewSourceAddressToken(kPrimary, ip4_, &cached_network_params_input);
 541
 542   CachedNetworkParameters cached_network_params_output;
 543 #if 0
 544   // TODO(rtenneti): For server, enable the following check after serialization
 545   // of optional CachedNetworkParameters is implemented.
 546   EXPECT_NE(cached_network_params_output.DebugString(),
 547             cached_network_params_input.DebugString());
 548 #endif
 549   ValidateSourceAddressTokens(kPrimary, token4_with_cached_network_params, ip4_,
 550                               &cached_network_params_output);
 551 #if 0
 552   // TODO(rtenneti): For server, enable the following check after serialization
 553   // of optional CachedNetworkParameters is implemented.
 554   EXPECT_EQ(cached_network_params_output.DebugString(),
 555             cached_network_params_input.DebugString());
 556 #endif
 557 }
 558
 559 // Test the ability for a source address token to be valid for multiple
 560 // addresses.
 561 //
 562 // TODO(rtenneti): For server, enable the following test after serialization of
 563 // SourceAddressTokens is implemented.
 564 TEST_F(SourceAddressTokenTest, DISABLED_SourceAddressTokenMultipleAddresses) {
 565   ValueRestore<bool> old_flag(&FLAGS_quic_use_multiple_address_in_source_tokens,
 566                               true);
 567
 568   QuicWallTime now = clock_.WallNow();
 569
 570   // Now create a token which is usable for both addresses.
 571   SourceAddressToken previous_token;
 572   IPAddressNumber ip_address = ip6_;
 573   if (ip6_.size() == kIPv4AddressSize) {
 574     ip_address = ConvertIPv4NumberToIPv6Number(ip_address);
 575   }
 576   previous_token.set_ip(IPAddressToPackedString(ip_address));
 577   previous_token.set_timestamp(now.ToUNIXSeconds());
 578   SourceAddressTokens previous_tokens;
 579   (*previous_tokens.add_tokens()) = previous_token;
 580   const string token4or6 =
 581       NewSourceAddressToken(kPrimary, ip4_, previous_tokens);
 582
 583   EXPECT_EQ(HANDSHAKE_OK,
 584             ValidateSourceAddressTokens(kPrimary, token4or6, ip4_));
 585   ASSERT_EQ(HANDSHAKE_OK,
 586             ValidateSourceAddressTokens(kPrimary, token4or6, ip6_));
 587 }
 588
 589 TEST(QuicCryptoServerConfigTest, ValidateServerNonce) {
 590   QuicRandom* rand = QuicRandom::GetInstance();
 591   QuicCryptoServerConfig server(QuicCryptoServerConfig::TESTING, rand);
 592   QuicCryptoServerConfigPeer peer(&server);
 593
 594   StringPiece message("hello world");
 595   const size_t key_size = CryptoSecretBoxer::GetKeySize();
 596   scoped_ptr<uint8[]> key(new uint8[key_size]);
 597   memset(key.get(), 0x11, key_size);
 598
 599   CryptoSecretBoxer boxer;
 600   boxer.SetKey(StringPiece(reinterpret_cast<char*>(key.get()), key_size));
 601   const string box = boxer.Box(rand, message);
 602   MockClock clock;
 603   QuicWallTime now = clock.WallNow();
 604   const QuicWallTime original_time = now;
 605   EXPECT_EQ(SERVER_NONCE_DECRYPTION_FAILURE,
 606             peer.ValidateServerNonce(box, now));
 607
 608   string server_nonce = peer.NewServerNonce(rand, now);
 609   EXPECT_EQ(HANDSHAKE_OK, peer.ValidateServerNonce(server_nonce, now));
 610   EXPECT_EQ(SERVER_NONCE_NOT_UNIQUE_FAILURE,
 611             peer.ValidateServerNonce(server_nonce, now));
 612
 613   now = original_time.Add(QuicTime::Delta::FromSeconds(1000 * 7));
 614   server_nonce = peer.NewServerNonce(rand, now);
 615   EXPECT_EQ(HANDSHAKE_OK, peer.ValidateServerNonce(server_nonce, now));
 616 }
 617
 618 class CryptoServerConfigsTest : public ::testing::Test {
 619  public:
 620   CryptoServerConfigsTest()
 621       : rand_(QuicRandom::GetInstance()),
 622         config_(QuicCryptoServerConfig::TESTING, rand_),
 623         test_peer_(&config_) {}
 624
 625   void SetUp() override {
 626     clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1000));
 627   }
 628
 629   // SetConfigs constructs suitable config protobufs and calls SetConfigs on
 630   // |config_|. The arguments are given as nullptr-terminated pairs. The first
 631   // of each pair is the server config ID of a Config. The second is the
 632   // |primary_time| of that Config, given in epoch seconds. (Although note that,
 633   // in these tests, time is set to 1000 seconds since the epoch.) For example:
 634   //   SetConfigs(nullptr);  // calls |config_.SetConfigs| with no protobufs.
 635   //
 636   //   // Calls |config_.SetConfigs| with two protobufs: one for a Config with
 637   //   // a |primary_time| of 900 and priority 1, and another with
 638   //   // a |primary_time| of 1000 and priority 2.
 639
 640   //   CheckConfigs(
 641   //     "id1", 900, 1,
 642   //     "id2", 1000, 2,
 643   //     nullptr);
 644   //
 645   // If the server config id starts with "INVALID" then the generated protobuf
 646   // will be invalid.
 647   void SetConfigs(const char* server_config_id1, ...) {
 648     const char kOrbit[] = "12345678";
 649
 650     va_list ap;
 651     va_start(ap, server_config_id1);
 652     bool has_invalid = false;
 653     bool is_empty = true;
 654
 655     vector<QuicServerConfigProtobuf*> protobufs;
 656     bool first = true;
 657     for (;;) {
 658       const char* server_config_id;
 659       if (first) {
 660         server_config_id = server_config_id1;
 661         first = false;
 662       } else {
 663         server_config_id = va_arg(ap, const char*);
 664       }
 665
 666       if (!server_config_id) {
 667         break;
 668       }
 669
 670       is_empty = false;
 671       int primary_time = va_arg(ap, int);
 672       int priority = va_arg(ap, int);
 673
 674       QuicCryptoServerConfig::ConfigOptions options;
 675       options.id = server_config_id;
 676       options.orbit = kOrbit;
 677       QuicServerConfigProtobuf* protobuf(
 678           QuicCryptoServerConfig::GenerateConfig(rand_, &clock_, options));
 679       protobuf->set_primary_time(primary_time);
 680       protobuf->set_priority(priority);
 681       if (string(server_config_id).find("INVALID") == 0) {
 682         protobuf->clear_key();
 683         has_invalid = true;
 684       }
 685       protobufs.push_back(protobuf);
 686     }
 687
 688     ASSERT_EQ(!has_invalid && !is_empty,
 689               config_.SetConfigs(protobufs, clock_.WallNow()));
 690     STLDeleteElements(&protobufs);
 691   }
 692
 693  protected:
 694   QuicRandom* const rand_;
 695   MockClock clock_;
 696   QuicCryptoServerConfig config_;
 697   QuicCryptoServerConfigPeer test_peer_;
 698 };
 699
 700 TEST_F(CryptoServerConfigsTest, NoConfigs) {
 701   test_peer_.CheckConfigs(nullptr);
 702 }
 703
 704 TEST_F(CryptoServerConfigsTest, MakePrimaryFirst) {
 705   // Make sure that "b" is primary even though "a" comes first.
 706   SetConfigs("a", 1100, 1,
 707              "b", 900, 1,
 708              nullptr);
 709   test_peer_.CheckConfigs(
 710       "a", false,
 711       "b", true,
 712       nullptr);
 713 }
 714
 715 TEST_F(CryptoServerConfigsTest, MakePrimarySecond) {
 716   // Make sure that a remains primary after b is added.
 717   SetConfigs("a", 900, 1,
 718              "b", 1100, 1,
 719              nullptr);
 720   test_peer_.CheckConfigs(
 721       "a", true,
 722       "b", false,
 723       nullptr);
 724 }
 725
 726 TEST_F(CryptoServerConfigsTest, Delete) {
 727   // Ensure that configs get deleted when removed.
 728   SetConfigs("a", 800, 1,
 729              "b", 900, 1,
 730              "c", 1100, 1,
 731              nullptr);
 732   test_peer_.CheckConfigs(
 733       "a", false,
 734       "b", true,
 735       "c", false,
 736       nullptr);
 737   SetConfigs("b", 900, 1,
 738              "c", 1100, 1,
 739              nullptr);
 740   test_peer_.CheckConfigs(
 741       "b", true,
 742       "c", false,
 743       nullptr);
 744 }
 745
 746 TEST_F(CryptoServerConfigsTest, DeletePrimary) {
 747   // Ensure that deleting the primary config works.
 748   SetConfigs("a", 800, 1,
 749              "b", 900, 1,
 750              "c", 1100, 1,
 751              nullptr);
 752   test_peer_.CheckConfigs(
 753       "a", false,
 754       "b", true,
 755       "c", false,
 756       nullptr);
 757   SetConfigs("a", 800, 1,
 758              "c", 1100, 1,
 759              nullptr);
 760   test_peer_.CheckConfigs(
 761       "a", true,
 762       "c", false,
 763       nullptr);
 764 }
 765
 766 TEST_F(CryptoServerConfigsTest, FailIfDeletingAllConfigs) {
 767   // Ensure that configs get deleted when removed.
 768   SetConfigs("a", 800, 1,
 769              "b", 900, 1,
 770              nullptr);
 771   test_peer_.CheckConfigs(
 772       "a", false,
 773       "b", true,
 774       nullptr);
 775   SetConfigs(nullptr);
 776   // Config change is rejected, still using old configs.
 777   test_peer_.CheckConfigs(
 778       "a", false,
 779       "b", true,
 780       nullptr);
 781 }
 782
 783 TEST_F(CryptoServerConfigsTest, ChangePrimaryTime) {
 784   // Check that updates to primary time get picked up.
 785   SetConfigs("a", 400, 1,
 786              "b", 800, 1,
 787              "c", 1200, 1,
 788              nullptr);
 789   test_peer_.SelectNewPrimaryConfig(500);
 790   test_peer_.CheckConfigs(
 791       "a", true,
 792       "b", false,
 793       "c", false,
 794       nullptr);
 795   SetConfigs("a", 1200, 1,
 796              "b", 800, 1,
 797              "c", 400, 1,
 798              nullptr);
 799   test_peer_.SelectNewPrimaryConfig(500);
 800   test_peer_.CheckConfigs(
 801       "a", false,
 802       "b", false,
 803       "c", true,
 804       nullptr);
 805 }
 806
 807 TEST_F(CryptoServerConfigsTest, AllConfigsInThePast) {
 808   // Check that the most recent config is selected.
 809   SetConfigs("a", 400, 1,
 810              "b", 800, 1,
 811              "c", 1200, 1,
 812              nullptr);
 813   test_peer_.SelectNewPrimaryConfig(1500);
 814   test_peer_.CheckConfigs(
 815       "a", false,
 816       "b", false,
 817       "c", true,
 818       nullptr);
 819 }
 820
 821 TEST_F(CryptoServerConfigsTest, AllConfigsInTheFuture) {
 822   // Check that the first config is selected.
 823   SetConfigs("a", 400, 1,
 824              "b", 800, 1,
 825              "c", 1200, 1,
 826              nullptr);
 827   test_peer_.SelectNewPrimaryConfig(100);
 828   test_peer_.CheckConfigs(
 829       "a", true,
 830       "b", false,
 831       "c", false,
 832       nullptr);
 833 }
 834
 835 TEST_F(CryptoServerConfigsTest, SortByPriority) {
 836   // Check that priority is used to decide on a primary config when
 837   // configs have the same primary time.
 838   SetConfigs("a", 900, 1,
 839              "b", 900, 2,
 840              "c", 900, 3,
 841              nullptr);
 842   test_peer_.CheckConfigs(
 843       "a", true,
 844       "b", false,
 845       "c", false,
 846       nullptr);
 847   test_peer_.SelectNewPrimaryConfig(800);
 848   test_peer_.CheckConfigs(
 849       "a", true,
 850       "b", false,
 851       "c", false,
 852       nullptr);
 853   test_peer_.SelectNewPrimaryConfig(1000);
 854   test_peer_.CheckConfigs(
 855       "a", true,
 856       "b", false,
 857       "c", false,
 858       nullptr);
 859
 860   // Change priorities and expect sort order to change.
 861   SetConfigs("a", 900, 2,
 862              "b", 900, 1,
 863              "c", 900, 0,
 864              nullptr);
 865   test_peer_.CheckConfigs(
 866       "a", false,
 867       "b", false,
 868       "c", true,
 869       nullptr);
 870   test_peer_.SelectNewPrimaryConfig(800);
 871   test_peer_.CheckConfigs(
 872       "a", false,
 873       "b", false,
 874       "c", true,
 875       nullptr);
 876   test_peer_.SelectNewPrimaryConfig(1000);
 877   test_peer_.CheckConfigs(
 878       "a", false,
 879       "b", false,
 880       "c", true,
 881       nullptr);
 882 }
 883
 884 TEST_F(CryptoServerConfigsTest, AdvancePrimary) {
 885   // Check that a new primary config is enabled at the right time.
 886   SetConfigs("a", 900, 1,
 887              "b", 1100, 1,
 888              nullptr);
 889   test_peer_.SelectNewPrimaryConfig(1000);
 890   test_peer_.CheckConfigs(
 891       "a", true,
 892       "b", false,
 893       nullptr);
 894   test_peer_.SelectNewPrimaryConfig(1101);
 895   test_peer_.CheckConfigs(
 896       "a", false,
 897       "b", true,
 898       nullptr);
 899 }
 900
 901 TEST_F(CryptoServerConfigsTest, InvalidConfigs) {
 902   // Ensure that invalid configs don't change anything.
 903   SetConfigs("a", 800, 1,
 904              "b", 900, 1,
 905              "c", 1100, 1,
 906              nullptr);
 907   test_peer_.CheckConfigs(
 908       "a", false,
 909       "b", true,
 910       "c", false,
 911       nullptr);
 912   SetConfigs("a", 800, 1,
 913              "c", 1100, 1,
 914              "INVALID1", 1000, 1,
 915              nullptr);
 916   test_peer_.CheckConfigs(
 917       "a", false,
 918       "b", true,
 919       "c", false,
 920       nullptr);
 921 }
 922
 923 }  // namespace test
 924 }  // namespace net