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| 1 // Copyright (c) 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 <ostream> | |
| 6 #include <vector> | |
| 7 | |
| 8 #include "base/basictypes.h" | |
| 9 #include "base/strings/string_number_conversions.h" | |
| 10 #include "crypto/secure_hash.h" | |
| 11 #include "net/quic/crypto/crypto_utils.h" | |
| 12 #include "net/quic/crypto/quic_crypto_server_config.h" | |
| 13 #include "net/quic/crypto/quic_random.h" | |
| 14 #include "net/quic/quic_flags.h" | |
| 15 #include "net/quic/quic_socket_address_coder.h" | |
| 16 #include "net/quic/quic_utils.h" | |
| 17 #include "net/quic/test_tools/crypto_test_utils.h" | |
| 18 #include "net/quic/test_tools/delayed_verify_strike_register_client.h" | |
| 19 #include "net/quic/test_tools/mock_clock.h" | |
| 20 #include "net/quic/test_tools/mock_random.h" | |
| 21 #include "net/quic/test_tools/quic_test_utils.h" | |
| 22 #include "testing/gtest/include/gtest/gtest.h" | |
| 23 | |
| 24 using base::StringPiece; | |
| 25 using std::ostream; | |
| 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 base::Lock* GetStrikeRegisterClientLock() { | |
| 38 return &server_config_->strike_register_client_lock_; | |
| 39 } | |
| 40 | |
| 41 private: | |
| 42 QuicCryptoServerConfig* server_config_; | |
| 43 }; | |
| 44 | |
| 45 // Run tests with both parities of | |
| 46 // FLAGS_use_early_return_when_verifying_chlo. | |
| 47 struct TestParams { | |
| 48 explicit TestParams(bool use_early_return_when_verifying_chlo) | |
| 49 : use_early_return_when_verifying_chlo( | |
| 50 use_early_return_when_verifying_chlo) {} | |
| 51 | |
| 52 friend ostream& operator<<(ostream& os, const TestParams& p) { | |
| 53 os << "{ use_early_return_when_verifying_chlo: " | |
| 54 << p.use_early_return_when_verifying_chlo << " }"; | |
| 55 return os; | |
| 56 } | |
| 57 | |
| 58 bool use_early_return_when_verifying_chlo; | |
| 59 }; | |
| 60 | |
| 61 // Constructs various test permutations. | |
| 62 vector<TestParams> GetTestParams() { | |
| 63 vector<TestParams> params; | |
| 64 params.push_back(TestParams(false)); | |
| 65 params.push_back(TestParams(true)); | |
| 66 return params; | |
| 67 } | |
| 68 | |
| 69 class CryptoServerTest : public ::testing::TestWithParam<TestParams> { | |
| 70 public: | |
| 71 CryptoServerTest() | |
| 72 : rand_(QuicRandom::GetInstance()), | |
| 73 client_address_(Loopback4(), 1234), | |
| 74 config_(QuicCryptoServerConfig::TESTING, rand_) { | |
| 75 config_.SetProofSource(CryptoTestUtils::ProofSourceForTesting()); | |
| 76 supported_versions_ = QuicSupportedVersions(); | |
| 77 client_version_ = QuicUtils::TagToString( | |
| 78 QuicVersionToQuicTag(supported_versions_.front())); | |
| 79 | |
| 80 FLAGS_use_early_return_when_verifying_chlo = | |
| 81 GetParam().use_early_return_when_verifying_chlo; | |
| 82 } | |
| 83 | |
| 84 void SetUp() override { | |
| 85 scoped_ptr<CryptoHandshakeMessage> msg( | |
| 86 config_.AddDefaultConfig(rand_, &clock_, | |
| 87 config_options_)); | |
| 88 | |
| 89 StringPiece orbit; | |
| 90 CHECK(msg->GetStringPiece(kORBT, &orbit)); | |
| 91 CHECK_EQ(sizeof(orbit_), orbit.size()); | |
| 92 memcpy(orbit_, orbit.data(), orbit.size()); | |
| 93 | |
| 94 char public_value[32]; | |
| 95 memset(public_value, 42, sizeof(public_value)); | |
| 96 | |
| 97 const string nonce_str = GenerateNonce(); | |
| 98 nonce_hex_ = "#" + base::HexEncode(nonce_str.data(), nonce_str.size()); | |
| 99 pub_hex_ = "#" + base::HexEncode(public_value, sizeof(public_value)); | |
| 100 | |
| 101 CryptoHandshakeMessage client_hello = CryptoTestUtils::Message( | |
| 102 "CHLO", | |
| 103 "AEAD", "AESG", | |
| 104 "KEXS", "C255", | |
| 105 "PUBS", pub_hex_.c_str(), | |
| 106 "NONC", nonce_hex_.c_str(), | |
| 107 "VER\0", client_version_.data(), | |
| 108 "$padding", static_cast<int>(kClientHelloMinimumSize), | |
| 109 nullptr); | |
| 110 ShouldSucceed(client_hello); | |
| 111 // The message should be rejected because the source-address token is | |
| 112 // missing. | |
| 113 ASSERT_EQ(kREJ, out_.tag()); | |
| 114 const HandshakeFailureReason kRejectReasons[] = { | |
| 115 SERVER_CONFIG_INCHOATE_HELLO_FAILURE | |
| 116 }; | |
| 117 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 118 | |
| 119 StringPiece srct; | |
| 120 ASSERT_TRUE(out_.GetStringPiece(kSourceAddressTokenTag, &srct)); | |
| 121 srct_hex_ = "#" + base::HexEncode(srct.data(), srct.size()); | |
| 122 | |
| 123 StringPiece scfg; | |
| 124 ASSERT_TRUE(out_.GetStringPiece(kSCFG, &scfg)); | |
| 125 server_config_.reset(CryptoFramer::ParseMessage(scfg)); | |
| 126 | |
| 127 StringPiece scid; | |
| 128 ASSERT_TRUE(server_config_->GetStringPiece(kSCID, &scid)); | |
| 129 scid_hex_ = "#" + base::HexEncode(scid.data(), scid.size()); | |
| 130 } | |
| 131 | |
| 132 // Helper used to accept the result of ValidateClientHello and pass | |
| 133 // it on to ProcessClientHello. | |
| 134 class ValidateCallback : public ValidateClientHelloResultCallback { | |
| 135 public: | |
| 136 ValidateCallback(CryptoServerTest* test, | |
| 137 bool should_succeed, | |
| 138 const char* error_substr, | |
| 139 bool* called) | |
| 140 : test_(test), | |
| 141 should_succeed_(should_succeed), | |
| 142 error_substr_(error_substr), | |
| 143 called_(called) { | |
| 144 *called_ = false; | |
| 145 } | |
| 146 | |
| 147 void RunImpl(const CryptoHandshakeMessage& client_hello, | |
| 148 const Result& result) override { | |
| 149 { | |
| 150 // Ensure that the strike register client lock is not held. | |
| 151 QuicCryptoServerConfigPeer peer(&test_->config_); | |
| 152 base::Lock* m = peer.GetStrikeRegisterClientLock(); | |
| 153 // In Chromium, we will dead lock if the lock is held by the current | |
| 154 // thread. Chromium doesn't have AssertNotHeld API call. | |
| 155 // m->AssertNotHeld(); | |
| 156 base::AutoLock lock(*m); | |
| 157 } | |
| 158 ASSERT_FALSE(*called_); | |
| 159 test_->ProcessValidationResult( | |
| 160 client_hello, result, should_succeed_, error_substr_); | |
| 161 *called_ = true; | |
| 162 } | |
| 163 | |
| 164 private: | |
| 165 CryptoServerTest* test_; | |
| 166 bool should_succeed_; | |
| 167 const char* error_substr_; | |
| 168 bool* called_; | |
| 169 }; | |
| 170 | |
| 171 void CheckServerHello(const CryptoHandshakeMessage& server_hello) { | |
| 172 const QuicTag* versions; | |
| 173 size_t num_versions; | |
| 174 server_hello.GetTaglist(kVER, &versions, &num_versions); | |
| 175 ASSERT_EQ(QuicSupportedVersions().size(), num_versions); | |
| 176 for (size_t i = 0; i < num_versions; ++i) { | |
| 177 EXPECT_EQ(QuicVersionToQuicTag(QuicSupportedVersions()[i]), versions[i]); | |
| 178 } | |
| 179 | |
| 180 StringPiece address; | |
| 181 ASSERT_TRUE(server_hello.GetStringPiece(kCADR, &address)); | |
| 182 QuicSocketAddressCoder decoder; | |
| 183 ASSERT_TRUE(decoder.Decode(address.data(), address.size())); | |
| 184 EXPECT_EQ(client_address_.address(), decoder.ip()); | |
| 185 EXPECT_EQ(client_address_.port(), decoder.port()); | |
| 186 } | |
| 187 | |
| 188 void ShouldSucceed(const CryptoHandshakeMessage& message) { | |
| 189 bool called = false; | |
| 190 RunValidate(message, new ValidateCallback(this, true, "", &called)); | |
| 191 EXPECT_TRUE(called); | |
| 192 } | |
| 193 | |
| 194 void RunValidate( | |
| 195 const CryptoHandshakeMessage& message, | |
| 196 ValidateClientHelloResultCallback* cb) { | |
| 197 config_.ValidateClientHello(message, client_address_, &clock_, cb); | |
| 198 } | |
| 199 | |
| 200 void ShouldFailMentioning(const char* error_substr, | |
| 201 const CryptoHandshakeMessage& message) { | |
| 202 bool called = false; | |
| 203 ShouldFailMentioning(error_substr, message, &called); | |
| 204 EXPECT_TRUE(called); | |
| 205 } | |
| 206 | |
| 207 void ShouldFailMentioning(const char* error_substr, | |
| 208 const CryptoHandshakeMessage& message, | |
| 209 bool* called) { | |
| 210 config_.ValidateClientHello( | |
| 211 message, client_address_, &clock_, | |
| 212 new ValidateCallback(this, false, error_substr, called)); | |
| 213 } | |
| 214 | |
| 215 void ProcessValidationResult(const CryptoHandshakeMessage& message, | |
| 216 const ValidateCallback::Result& result, | |
| 217 bool should_succeed, | |
| 218 const char* error_substr) { | |
| 219 IPEndPoint server_ip; | |
| 220 string error_details; | |
| 221 QuicErrorCode error = config_.ProcessClientHello( | |
| 222 result, 1 /* ConnectionId */, server_ip, client_address_, | |
| 223 supported_versions_.front(), supported_versions_, &clock_, rand_, | |
| 224 ¶ms_, &out_, &error_details); | |
| 225 | |
| 226 if (should_succeed) { | |
| 227 ASSERT_EQ(error, QUIC_NO_ERROR) | |
| 228 << "Message failed with error " << error_details << ": " | |
| 229 << message.DebugString(); | |
| 230 } else { | |
| 231 ASSERT_NE(error, QUIC_NO_ERROR) | |
| 232 << "Message didn't fail: " << message.DebugString(); | |
| 233 | |
| 234 EXPECT_TRUE(error_details.find(error_substr) != string::npos) | |
| 235 << error_substr << " not in " << error_details; | |
| 236 } | |
| 237 } | |
| 238 | |
| 239 CryptoHandshakeMessage InchoateClientHello(const char* message_tag, ...) { | |
| 240 va_list ap; | |
| 241 va_start(ap, message_tag); | |
| 242 | |
| 243 CryptoHandshakeMessage message = | |
| 244 CryptoTestUtils::BuildMessage(message_tag, ap); | |
| 245 va_end(ap); | |
| 246 | |
| 247 message.SetStringPiece(kPAD, string(kClientHelloMinimumSize, '-')); | |
| 248 return message; | |
| 249 } | |
| 250 | |
| 251 string GenerateNonce() { | |
| 252 string nonce; | |
| 253 CryptoUtils::GenerateNonce( | |
| 254 clock_.WallNow(), rand_, | |
| 255 StringPiece(reinterpret_cast<const char*>(orbit_), sizeof(orbit_)), | |
| 256 &nonce); | |
| 257 return nonce; | |
| 258 } | |
| 259 | |
| 260 void CheckRejectReasons( | |
| 261 const HandshakeFailureReason* expected_handshake_failures, | |
| 262 size_t expected_count) { | |
| 263 const uint32* reject_reasons; | |
| 264 size_t num_reject_reasons; | |
| 265 static_assert(sizeof(QuicTag) == sizeof(uint32), "header out of sync"); | |
| 266 QuicErrorCode error_code = out_.GetTaglist(kRREJ, &reject_reasons, | |
| 267 &num_reject_reasons); | |
| 268 ASSERT_EQ(QUIC_NO_ERROR, error_code); | |
| 269 | |
| 270 if (FLAGS_use_early_return_when_verifying_chlo) { | |
| 271 EXPECT_EQ(1u, num_reject_reasons); | |
| 272 } else { | |
| 273 EXPECT_EQ(expected_count, num_reject_reasons); | |
| 274 } | |
| 275 for (size_t i = 0; i < num_reject_reasons; ++i) { | |
| 276 EXPECT_EQ(expected_handshake_failures[i], reject_reasons[i]); | |
| 277 } | |
| 278 } | |
| 279 | |
| 280 protected: | |
| 281 QuicRandom* const rand_; | |
| 282 MockClock clock_; | |
| 283 const IPEndPoint client_address_; | |
| 284 QuicVersionVector supported_versions_; | |
| 285 string client_version_; | |
| 286 QuicCryptoServerConfig config_; | |
| 287 QuicCryptoServerConfig::ConfigOptions config_options_; | |
| 288 QuicCryptoNegotiatedParameters params_; | |
| 289 CryptoHandshakeMessage out_; | |
| 290 uint8 orbit_[kOrbitSize]; | |
| 291 | |
| 292 // These strings contain hex escaped values from the server suitable for | |
| 293 // passing to |InchoateClientHello| when constructing client hello messages. | |
| 294 string nonce_hex_, pub_hex_, srct_hex_, scid_hex_; | |
| 295 scoped_ptr<CryptoHandshakeMessage> server_config_; | |
| 296 }; | |
| 297 | |
| 298 // Run all CryptoServerTest with both values of | |
| 299 // FLAGS_use_early_return_when_verifying_chlo | |
| 300 INSTANTIATE_TEST_CASE_P(CryptoServerTests, | |
| 301 CryptoServerTest, | |
| 302 ::testing::ValuesIn(GetTestParams())); | |
| 303 | |
| 304 TEST_P(CryptoServerTest, BadSNI) { | |
| 305 static const char* const kBadSNIs[] = { | |
| 306 "", | |
| 307 "foo", | |
| 308 "#00", | |
| 309 "#ff00", | |
| 310 "127.0.0.1", | |
| 311 "ffee::1", | |
| 312 }; | |
| 313 | |
| 314 string client_version = QuicUtils::TagToString( | |
| 315 QuicVersionToQuicTag(supported_versions_.front())); | |
| 316 | |
| 317 for (size_t i = 0; i < arraysize(kBadSNIs); i++) { | |
| 318 ShouldFailMentioning("SNI", InchoateClientHello( | |
| 319 "CHLO", | |
| 320 "SNI", kBadSNIs[i], | |
| 321 "VER\0", client_version.data(), | |
| 322 nullptr)); | |
| 323 const HandshakeFailureReason kRejectReasons[] = { | |
| 324 SERVER_CONFIG_INCHOATE_HELLO_FAILURE | |
| 325 }; | |
| 326 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 327 } | |
| 328 } | |
| 329 | |
| 330 // TODO(rtenneti): Enable the DefaultCert test after implementing ProofSource. | |
| 331 TEST_F(CryptoServerTest, DISABLED_DefaultCert) { | |
| 332 // Check that the server replies with a default certificate when no SNI is | |
| 333 // specified. | |
| 334 ShouldSucceed(InchoateClientHello( | |
| 335 "CHLO", | |
| 336 "AEAD", "AESG", | |
| 337 "KEXS", "C255", | |
| 338 "SCID", scid_hex_.c_str(), | |
| 339 "#004b5453", srct_hex_.c_str(), | |
| 340 "PUBS", pub_hex_.c_str(), | |
| 341 "NONC", nonce_hex_.c_str(), | |
| 342 "$padding", static_cast<int>(kClientHelloMinimumSize), | |
| 343 "PDMD", "X509", | |
| 344 "VER\0", client_version_.data(), | |
| 345 nullptr)); | |
| 346 | |
| 347 StringPiece cert, proof; | |
| 348 EXPECT_TRUE(out_.GetStringPiece(kCertificateTag, &cert)); | |
| 349 EXPECT_TRUE(out_.GetStringPiece(kPROF, &proof)); | |
| 350 EXPECT_NE(0u, cert.size()); | |
| 351 EXPECT_NE(0u, proof.size()); | |
| 352 const HandshakeFailureReason kRejectReasons[] = { | |
| 353 CLIENT_NONCE_INVALID_TIME_FAILURE | |
| 354 }; | |
| 355 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 356 } | |
| 357 | |
| 358 TEST_P(CryptoServerTest, TooSmall) { | |
| 359 ShouldFailMentioning("too small", CryptoTestUtils::Message( | |
| 360 "CHLO", | |
| 361 "VER\0", client_version_.data(), | |
| 362 nullptr)); | |
| 363 const HandshakeFailureReason kRejectReasons[] = { | |
| 364 SERVER_CONFIG_INCHOATE_HELLO_FAILURE | |
| 365 }; | |
| 366 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 367 } | |
| 368 | |
| 369 TEST_P(CryptoServerTest, BadSourceAddressToken) { | |
| 370 // Invalid source-address tokens should be ignored. | |
| 371 static const char* const kBadSourceAddressTokens[] = { | |
| 372 "", | |
| 373 "foo", | |
| 374 "#0000", | |
| 375 "#0000000000000000000000000000000000000000", | |
| 376 }; | |
| 377 | |
| 378 for (size_t i = 0; i < arraysize(kBadSourceAddressTokens); i++) { | |
| 379 ShouldSucceed(InchoateClientHello( | |
| 380 "CHLO", | |
| 381 "STK", kBadSourceAddressTokens[i], | |
| 382 "VER\0", client_version_.data(), | |
| 383 nullptr)); | |
| 384 const HandshakeFailureReason kRejectReasons[] = { | |
| 385 SERVER_CONFIG_INCHOATE_HELLO_FAILURE | |
| 386 }; | |
| 387 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 388 } | |
| 389 } | |
| 390 | |
| 391 TEST_P(CryptoServerTest, BadClientNonce) { | |
| 392 // Invalid nonces should be ignored. | |
| 393 static const char* const kBadNonces[] = { | |
| 394 "", | |
| 395 "#0000", | |
| 396 "#0000000000000000000000000000000000000000", | |
| 397 }; | |
| 398 | |
| 399 for (size_t i = 0; i < arraysize(kBadNonces); i++) { | |
| 400 ShouldSucceed(InchoateClientHello( | |
| 401 "CHLO", | |
| 402 "NONC", kBadNonces[i], | |
| 403 "VER\0", client_version_.data(), | |
| 404 nullptr)); | |
| 405 const HandshakeFailureReason kRejectReasons[] = { | |
| 406 SERVER_CONFIG_INCHOATE_HELLO_FAILURE | |
| 407 }; | |
| 408 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 409 } | |
| 410 } | |
| 411 | |
| 412 TEST_P(CryptoServerTest, DowngradeAttack) { | |
| 413 if (supported_versions_.size() == 1) { | |
| 414 // No downgrade attack is possible if the server only supports one version. | |
| 415 return; | |
| 416 } | |
| 417 // Set the client's preferred version to a supported version that | |
| 418 // is not the "current" version (supported_versions_.front()). | |
| 419 string bad_version = QuicUtils::TagToString( | |
| 420 QuicVersionToQuicTag(supported_versions_.back())); | |
| 421 | |
| 422 ShouldFailMentioning("Downgrade", InchoateClientHello( | |
| 423 "CHLO", | |
| 424 "VER\0", bad_version.data(), | |
| 425 nullptr)); | |
| 426 const HandshakeFailureReason kRejectReasons[] = { | |
| 427 SERVER_CONFIG_INCHOATE_HELLO_FAILURE | |
| 428 }; | |
| 429 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 430 } | |
| 431 | |
| 432 TEST_P(CryptoServerTest, CorruptServerConfig) { | |
| 433 // This tests corrupted server config. | |
| 434 CryptoHandshakeMessage msg = CryptoTestUtils::Message( | |
| 435 "CHLO", | |
| 436 "AEAD", "AESG", | |
| 437 "KEXS", "C255", | |
| 438 "SCID", (string(1, 'X') + scid_hex_).c_str(), | |
| 439 "#004b5453", srct_hex_.c_str(), | |
| 440 "PUBS", pub_hex_.c_str(), | |
| 441 "NONC", nonce_hex_.c_str(), | |
| 442 "VER\0", client_version_.data(), | |
| 443 "$padding", static_cast<int>(kClientHelloMinimumSize), | |
| 444 nullptr); | |
| 445 ShouldSucceed(msg); | |
| 446 ASSERT_EQ(kREJ, out_.tag()); | |
| 447 const HandshakeFailureReason kRejectReasons[] = { | |
| 448 SERVER_CONFIG_UNKNOWN_CONFIG_FAILURE | |
| 449 }; | |
| 450 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 451 } | |
| 452 | |
| 453 TEST_P(CryptoServerTest, CorruptSourceAddressToken) { | |
| 454 // This tests corrupted source address token. | |
| 455 CryptoHandshakeMessage msg = CryptoTestUtils::Message( | |
| 456 "CHLO", | |
| 457 "AEAD", "AESG", | |
| 458 "KEXS", "C255", | |
| 459 "SCID", scid_hex_.c_str(), | |
| 460 "#004b5453", (string(1, 'X') + srct_hex_).c_str(), | |
| 461 "PUBS", pub_hex_.c_str(), | |
| 462 "NONC", nonce_hex_.c_str(), | |
| 463 "VER\0", client_version_.data(), | |
| 464 "$padding", static_cast<int>(kClientHelloMinimumSize), | |
| 465 nullptr); | |
| 466 ShouldSucceed(msg); | |
| 467 ASSERT_EQ(kREJ, out_.tag()); | |
| 468 const HandshakeFailureReason kRejectReasons[] = { | |
| 469 SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE | |
| 470 }; | |
| 471 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 472 } | |
| 473 | |
| 474 TEST_P(CryptoServerTest, CorruptClientNonceAndSourceAddressToken) { | |
| 475 // This test corrupts client nonce and source address token. | |
| 476 CryptoHandshakeMessage msg = CryptoTestUtils::Message( | |
| 477 "CHLO", | |
| 478 "AEAD", "AESG", | |
| 479 "KEXS", "C255", | |
| 480 "SCID", scid_hex_.c_str(), | |
| 481 "#004b5453", (string(1, 'X') + srct_hex_).c_str(), | |
| 482 "PUBS", pub_hex_.c_str(), | |
| 483 "NONC", (string(1, 'X') + nonce_hex_).c_str(), | |
| 484 "VER\0", client_version_.data(), | |
| 485 "$padding", static_cast<int>(kClientHelloMinimumSize), | |
| 486 nullptr); | |
| 487 ShouldSucceed(msg); | |
| 488 ASSERT_EQ(kREJ, out_.tag()); | |
| 489 const HandshakeFailureReason kRejectReasons[] = { | |
| 490 SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE, | |
| 491 CLIENT_NONCE_INVALID_FAILURE | |
| 492 }; | |
| 493 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 494 } | |
| 495 | |
| 496 TEST_P(CryptoServerTest, CorruptMultipleTags) { | |
| 497 // This test corrupts client nonce, server nonce and source address token. | |
| 498 CryptoHandshakeMessage msg = CryptoTestUtils::Message( | |
| 499 "CHLO", | |
| 500 "AEAD", "AESG", | |
| 501 "KEXS", "C255", | |
| 502 "SCID", scid_hex_.c_str(), | |
| 503 "#004b5453", (string(1, 'X') + srct_hex_).c_str(), | |
| 504 "PUBS", pub_hex_.c_str(), | |
| 505 "NONC", (string(1, 'X') + nonce_hex_).c_str(), | |
| 506 "SNO\0", (string(1, 'X') + nonce_hex_).c_str(), | |
| 507 "VER\0", client_version_.data(), | |
| 508 "$padding", static_cast<int>(kClientHelloMinimumSize), | |
| 509 nullptr); | |
| 510 ShouldSucceed(msg); | |
| 511 ASSERT_EQ(kREJ, out_.tag()); | |
| 512 const HandshakeFailureReason kRejectReasons[] = { | |
| 513 SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE, | |
| 514 CLIENT_NONCE_INVALID_FAILURE, | |
| 515 SERVER_NONCE_DECRYPTION_FAILURE, | |
| 516 }; | |
| 517 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 518 } | |
| 519 | |
| 520 TEST_P(CryptoServerTest, ReplayProtection) { | |
| 521 // This tests that disabling replay protection works. | |
| 522 CryptoHandshakeMessage msg = CryptoTestUtils::Message( | |
| 523 "CHLO", | |
| 524 "AEAD", "AESG", | |
| 525 "KEXS", "C255", | |
| 526 "SCID", scid_hex_.c_str(), | |
| 527 "#004b5453", srct_hex_.c_str(), | |
| 528 "PUBS", pub_hex_.c_str(), | |
| 529 "NONC", nonce_hex_.c_str(), | |
| 530 "VER\0", client_version_.data(), | |
| 531 "$padding", static_cast<int>(kClientHelloMinimumSize), | |
| 532 nullptr); | |
| 533 ShouldSucceed(msg); | |
| 534 // The message should be rejected because the strike-register is still | |
| 535 // quiescent. | |
| 536 ASSERT_EQ(kREJ, out_.tag()); | |
| 537 | |
| 538 const HandshakeFailureReason kRejectReasons[] = { | |
| 539 CLIENT_NONCE_INVALID_TIME_FAILURE | |
| 540 }; | |
| 541 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 542 | |
| 543 config_.set_replay_protection(false); | |
| 544 | |
| 545 ShouldSucceed(msg); | |
| 546 // The message should be accepted now. | |
| 547 ASSERT_EQ(kSHLO, out_.tag()); | |
| 548 CheckServerHello(out_); | |
| 549 | |
| 550 ShouldSucceed(msg); | |
| 551 // The message should accepted twice when replay protection is off. | |
| 552 ASSERT_EQ(kSHLO, out_.tag()); | |
| 553 CheckServerHello(out_); | |
| 554 } | |
| 555 | |
| 556 TEST(CryptoServerConfigGenerationTest, Determinism) { | |
| 557 // Test that using a deterministic PRNG causes the server-config to be | |
| 558 // deterministic. | |
| 559 | |
| 560 MockRandom rand_a, rand_b; | |
| 561 const QuicCryptoServerConfig::ConfigOptions options; | |
| 562 MockClock clock; | |
| 563 | |
| 564 QuicCryptoServerConfig a(QuicCryptoServerConfig::TESTING, &rand_a); | |
| 565 QuicCryptoServerConfig b(QuicCryptoServerConfig::TESTING, &rand_b); | |
| 566 scoped_ptr<CryptoHandshakeMessage> scfg_a( | |
| 567 a.AddDefaultConfig(&rand_a, &clock, options)); | |
| 568 scoped_ptr<CryptoHandshakeMessage> scfg_b( | |
| 569 b.AddDefaultConfig(&rand_b, &clock, options)); | |
| 570 | |
| 571 ASSERT_EQ(scfg_a->DebugString(), scfg_b->DebugString()); | |
| 572 } | |
| 573 | |
| 574 TEST(CryptoServerConfigGenerationTest, SCIDVaries) { | |
| 575 // This test ensures that the server config ID varies for different server | |
| 576 // configs. | |
| 577 | |
| 578 MockRandom rand_a, rand_b; | |
| 579 const QuicCryptoServerConfig::ConfigOptions options; | |
| 580 MockClock clock; | |
| 581 | |
| 582 QuicCryptoServerConfig a(QuicCryptoServerConfig::TESTING, &rand_a); | |
| 583 rand_b.ChangeValue(); | |
| 584 QuicCryptoServerConfig b(QuicCryptoServerConfig::TESTING, &rand_b); | |
| 585 scoped_ptr<CryptoHandshakeMessage> scfg_a( | |
| 586 a.AddDefaultConfig(&rand_a, &clock, options)); | |
| 587 scoped_ptr<CryptoHandshakeMessage> scfg_b( | |
| 588 b.AddDefaultConfig(&rand_b, &clock, options)); | |
| 589 | |
| 590 StringPiece scid_a, scid_b; | |
| 591 EXPECT_TRUE(scfg_a->GetStringPiece(kSCID, &scid_a)); | |
| 592 EXPECT_TRUE(scfg_b->GetStringPiece(kSCID, &scid_b)); | |
| 593 | |
| 594 EXPECT_NE(scid_a, scid_b); | |
| 595 } | |
| 596 | |
| 597 | |
| 598 TEST(CryptoServerConfigGenerationTest, SCIDIsHashOfServerConfig) { | |
| 599 MockRandom rand_a; | |
| 600 const QuicCryptoServerConfig::ConfigOptions options; | |
| 601 MockClock clock; | |
| 602 | |
| 603 QuicCryptoServerConfig a(QuicCryptoServerConfig::TESTING, &rand_a); | |
| 604 scoped_ptr<CryptoHandshakeMessage> scfg( | |
| 605 a.AddDefaultConfig(&rand_a, &clock, options)); | |
| 606 | |
| 607 StringPiece scid; | |
| 608 EXPECT_TRUE(scfg->GetStringPiece(kSCID, &scid)); | |
| 609 // Need to take a copy of |scid| has we're about to call |Erase|. | |
| 610 const string scid_str(scid.as_string()); | |
| 611 | |
| 612 scfg->Erase(kSCID); | |
| 613 scfg->MarkDirty(); | |
| 614 const QuicData& serialized(scfg->GetSerialized()); | |
| 615 | |
| 616 scoped_ptr<crypto::SecureHash> hash( | |
| 617 crypto::SecureHash::Create(crypto::SecureHash::SHA256)); | |
| 618 hash->Update(serialized.data(), serialized.length()); | |
| 619 uint8 digest[16]; | |
| 620 hash->Finish(digest, sizeof(digest)); | |
| 621 | |
| 622 ASSERT_EQ(scid.size(), sizeof(digest)); | |
| 623 EXPECT_EQ(0, memcmp(digest, scid_str.data(), sizeof(digest))); | |
| 624 } | |
| 625 | |
| 626 class CryptoServerTestNoConfig : public CryptoServerTest { | |
| 627 public: | |
| 628 void SetUp() override { | |
| 629 // Deliberately don't add a config so that we can test this situation. | |
| 630 } | |
| 631 }; | |
| 632 | |
| 633 TEST_P(CryptoServerTestNoConfig, DontCrash) { | |
| 634 ShouldFailMentioning("No config", InchoateClientHello( | |
| 635 "CHLO", | |
| 636 "VER\0", client_version_.data(), | |
| 637 nullptr)); | |
| 638 | |
| 639 const HandshakeFailureReason kRejectReasons[] = { | |
| 640 SERVER_CONFIG_INCHOATE_HELLO_FAILURE | |
| 641 }; | |
| 642 CheckRejectReasons(kRejectReasons, arraysize(kRejectReasons)); | |
| 643 } | |
| 644 | |
| 645 class AsyncStrikeServerVerificationTest : public CryptoServerTest { | |
| 646 protected: | |
| 647 AsyncStrikeServerVerificationTest() { | |
| 648 } | |
| 649 | |
| 650 void SetUp() override { | |
| 651 const string kOrbit = "12345678"; | |
| 652 config_options_.orbit = kOrbit; | |
| 653 strike_register_client_ = new DelayedVerifyStrikeRegisterClient( | |
| 654 10000, // strike_register_max_entries | |
| 655 static_cast<uint32>(clock_.WallNow().ToUNIXSeconds()), | |
| 656 60, // strike_register_window_secs | |
| 657 reinterpret_cast<const uint8 *>(kOrbit.data()), | |
| 658 StrikeRegister::NO_STARTUP_PERIOD_NEEDED); | |
| 659 config_.SetStrikeRegisterClient(strike_register_client_); | |
| 660 CryptoServerTest::SetUp(); | |
| 661 strike_register_client_->StartDelayingVerification(); | |
| 662 } | |
| 663 | |
| 664 DelayedVerifyStrikeRegisterClient* strike_register_client_; | |
| 665 }; | |
| 666 | |
| 667 TEST_P(AsyncStrikeServerVerificationTest, AsyncReplayProtection) { | |
| 668 // This tests async validation with a strike register works. | |
| 669 CryptoHandshakeMessage msg = CryptoTestUtils::Message( | |
| 670 "CHLO", | |
| 671 "AEAD", "AESG", | |
| 672 "KEXS", "C255", | |
| 673 "SCID", scid_hex_.c_str(), | |
| 674 "#004b5453", srct_hex_.c_str(), | |
| 675 "PUBS", pub_hex_.c_str(), | |
| 676 "NONC", nonce_hex_.c_str(), | |
| 677 "VER\0", client_version_.data(), | |
| 678 "$padding", static_cast<int>(kClientHelloMinimumSize), | |
| 679 nullptr); | |
| 680 | |
| 681 // Clear the message tag. | |
| 682 out_.set_tag(0); | |
| 683 | |
| 684 bool called = false; | |
| 685 RunValidate(msg, new ValidateCallback(this, true, "", &called)); | |
| 686 // The verification request was queued. | |
| 687 ASSERT_FALSE(called); | |
| 688 EXPECT_EQ(0u, out_.tag()); | |
| 689 EXPECT_EQ(1, strike_register_client_->PendingVerifications()); | |
| 690 | |
| 691 // Continue processing the verification request. | |
| 692 strike_register_client_->RunPendingVerifications(); | |
| 693 ASSERT_TRUE(called); | |
| 694 EXPECT_EQ(0, strike_register_client_->PendingVerifications()); | |
| 695 // The message should be accepted now. | |
| 696 EXPECT_EQ(kSHLO, out_.tag()); | |
| 697 | |
| 698 // Rejected if replayed. | |
| 699 RunValidate(msg, new ValidateCallback(this, true, "", &called)); | |
| 700 // The verification request was queued. | |
| 701 ASSERT_FALSE(called); | |
| 702 EXPECT_EQ(1, strike_register_client_->PendingVerifications()); | |
| 703 | |
| 704 strike_register_client_->RunPendingVerifications(); | |
| 705 ASSERT_TRUE(called); | |
| 706 EXPECT_EQ(0, strike_register_client_->PendingVerifications()); | |
| 707 // The message should be rejected now. | |
| 708 EXPECT_EQ(kREJ, out_.tag()); | |
| 709 } | |
| 710 | |
| 711 } // namespace test | |
| 712 } // namespace net | |
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