| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "net/quic/core/quic_crypto_server_stream.h" |
| |
| #include <map> |
| #include <memory> |
| #include <vector> |
| |
| #include "base/memory/ptr_util.h" |
| #include "net/quic/core/crypto/aes_128_gcm_12_encrypter.h" |
| #include "net/quic/core/crypto/crypto_framer.h" |
| #include "net/quic/core/crypto/crypto_handshake.h" |
| #include "net/quic/core/crypto/crypto_protocol.h" |
| #include "net/quic/core/crypto/crypto_utils.h" |
| #include "net/quic/core/crypto/quic_crypto_server_config.h" |
| #include "net/quic/core/crypto/quic_decrypter.h" |
| #include "net/quic/core/crypto/quic_encrypter.h" |
| #include "net/quic/core/crypto/quic_random.h" |
| #include "net/quic/core/quic_crypto_client_stream.h" |
| #include "net/quic/core/quic_flags.h" |
| #include "net/quic/core/quic_packets.h" |
| #include "net/quic/core/quic_session.h" |
| #include "net/quic/platform/api/quic_socket_address.h" |
| #include "net/quic/test_tools/crypto_test_utils.h" |
| #include "net/quic/test_tools/quic_crypto_server_config_peer.h" |
| #include "net/quic/test_tools/quic_test_utils.h" |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace net { |
| class QuicConnection; |
| class QuicStream; |
| } // namespace net |
| |
| using std::string; |
| using testing::_; |
| |
| namespace net { |
| namespace test { |
| |
| class QuicCryptoServerStreamPeer { |
| public: |
| static bool DoesPeerSupportStatelessRejects( |
| const CryptoHandshakeMessage& message) { |
| return net::QuicCryptoServerStream::DoesPeerSupportStatelessRejects( |
| message); |
| } |
| }; |
| |
| namespace { |
| |
| const char kServerHostname[] = "test.example.com"; |
| const uint16_t kServerPort = 443; |
| |
| class QuicCryptoServerStreamTest : public ::testing::TestWithParam<bool> { |
| public: |
| QuicCryptoServerStreamTest() |
| : QuicCryptoServerStreamTest(CryptoTestUtils::ProofSourceForTesting()) {} |
| |
| explicit QuicCryptoServerStreamTest(std::unique_ptr<ProofSource> proof_source) |
| : server_crypto_config_(QuicCryptoServerConfig::TESTING, |
| QuicRandom::GetInstance(), |
| std::move(proof_source)), |
| server_compressed_certs_cache_( |
| QuicCompressedCertsCache::kQuicCompressedCertsCacheSize), |
| server_id_(kServerHostname, kServerPort, PRIVACY_MODE_DISABLED), |
| client_crypto_config_(CryptoTestUtils::ProofVerifierForTesting()) { |
| FLAGS_enable_quic_stateless_reject_support = false; |
| } |
| |
| void Initialize() { InitializeServer(); } |
| |
| ~QuicCryptoServerStreamTest() override { |
| // Ensure that anything that might reference |helpers_| is destroyed before |
| // |helpers_| is destroyed. |
| server_session_.reset(); |
| client_session_.reset(); |
| helpers_.clear(); |
| alarm_factories_.clear(); |
| } |
| |
| // Initializes the crypto server stream state for testing. May be |
| // called multiple times. |
| void InitializeServer() { |
| TestQuicSpdyServerSession* server_session = nullptr; |
| helpers_.push_back(base::MakeUnique<MockQuicConnectionHelper>()); |
| alarm_factories_.push_back(base::MakeUnique<MockAlarmFactory>()); |
| CreateServerSessionForTest( |
| server_id_, QuicTime::Delta::FromSeconds(100000), supported_versions_, |
| helpers_.back().get(), alarm_factories_.back().get(), |
| &server_crypto_config_, &server_compressed_certs_cache_, |
| &server_connection_, &server_session); |
| CHECK(server_session); |
| server_session_.reset(server_session); |
| CryptoTestUtils::FakeServerOptions options; |
| options.token_binding_params = QuicTagVector{kTB10}; |
| CryptoTestUtils::SetupCryptoServerConfigForTest( |
| server_connection_->clock(), server_connection_->random_generator(), |
| &server_crypto_config_, options); |
| } |
| |
| QuicCryptoServerStream* server_stream() { |
| return server_session_->GetCryptoStream(); |
| } |
| |
| QuicCryptoClientStream* client_stream() { |
| return client_session_->GetCryptoStream(); |
| } |
| |
| // Initializes a fake client, and all its associated state, for |
| // testing. May be called multiple times. |
| void InitializeFakeClient(bool supports_stateless_rejects) { |
| TestQuicSpdyClientSession* client_session = nullptr; |
| helpers_.push_back(base::MakeUnique<MockQuicConnectionHelper>()); |
| alarm_factories_.push_back(base::MakeUnique<MockAlarmFactory>()); |
| CreateClientSessionForTest( |
| server_id_, supports_stateless_rejects, |
| QuicTime::Delta::FromSeconds(100000), supported_versions_, |
| helpers_.back().get(), alarm_factories_.back().get(), |
| &client_crypto_config_, &client_connection_, &client_session); |
| CHECK(client_session); |
| client_session_.reset(client_session); |
| } |
| |
| void ConstructHandshakeMessage() { |
| CryptoFramer framer; |
| message_data_.reset(framer.ConstructHandshakeMessage(message_)); |
| } |
| |
| int CompleteCryptoHandshake() { |
| CHECK(server_connection_); |
| CHECK(server_session_ != nullptr); |
| return CryptoTestUtils::HandshakeWithFakeClient( |
| helpers_.back().get(), alarm_factories_.back().get(), |
| server_connection_, server_stream(), server_id_, client_options_); |
| } |
| |
| // Performs a single round of handshake message-exchange between the |
| // client and server. |
| void AdvanceHandshakeWithFakeClient() { |
| CHECK(server_connection_); |
| CHECK(client_session_ != nullptr); |
| |
| EXPECT_CALL(*client_session_, OnProofValid(_)).Times(testing::AnyNumber()); |
| client_stream()->CryptoConnect(); |
| CryptoTestUtils::AdvanceHandshake(client_connection_, client_stream(), 0, |
| server_connection_, server_stream(), 0); |
| } |
| |
| protected: |
| QuicFlagSaver flags_; // Save/restore all QUIC flag values. |
| |
| // Every connection gets its own MockQuicConnectionHelper and |
| // MockAlarmFactory, tracked separately from the server and client state so |
| // their lifetimes persist through the whole test. |
| std::vector<std::unique_ptr<MockQuicConnectionHelper>> helpers_; |
| std::vector<std::unique_ptr<MockAlarmFactory>> alarm_factories_; |
| |
| // Server state. |
| PacketSavingConnection* server_connection_; |
| std::unique_ptr<TestQuicSpdyServerSession> server_session_; |
| QuicCryptoServerConfig server_crypto_config_; |
| QuicCompressedCertsCache server_compressed_certs_cache_; |
| QuicServerId server_id_; |
| |
| // Client state. |
| PacketSavingConnection* client_connection_; |
| QuicCryptoClientConfig client_crypto_config_; |
| std::unique_ptr<TestQuicSpdyClientSession> client_session_; |
| |
| CryptoHandshakeMessage message_; |
| std::unique_ptr<QuicData> message_data_; |
| CryptoTestUtils::FakeClientOptions client_options_; |
| |
| // Which QUIC versions the client and server support. |
| QuicVersionVector supported_versions_ = AllSupportedVersions(); |
| }; |
| |
| INSTANTIATE_TEST_CASE_P(Tests, QuicCryptoServerStreamTest, testing::Bool()); |
| |
| TEST_P(QuicCryptoServerStreamTest, NotInitiallyConected) { |
| Initialize(); |
| EXPECT_FALSE(server_stream()->encryption_established()); |
| EXPECT_FALSE(server_stream()->handshake_confirmed()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, NotInitiallySendingStatelessRejects) { |
| Initialize(); |
| EXPECT_FALSE(server_stream()->UseStatelessRejectsIfPeerSupported()); |
| EXPECT_FALSE(server_stream()->PeerSupportsStatelessRejects()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, ConnectedAfterCHLO) { |
| // CompleteCryptoHandshake returns the number of client hellos sent. This |
| // test should send: |
| // * One to get a source-address token and certificates. |
| // * One to complete the handshake. |
| Initialize(); |
| EXPECT_EQ(2, CompleteCryptoHandshake()); |
| EXPECT_TRUE(server_stream()->encryption_established()); |
| EXPECT_TRUE(server_stream()->handshake_confirmed()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, ForwardSecureAfterCHLO) { |
| Initialize(); |
| InitializeFakeClient(/* supports_stateless_rejects= */ false); |
| |
| // Do a first handshake in order to prime the client config with the server's |
| // information. |
| AdvanceHandshakeWithFakeClient(); |
| EXPECT_FALSE(server_stream()->encryption_established()); |
| EXPECT_FALSE(server_stream()->handshake_confirmed()); |
| |
| // Now do another handshake, with the blocking SHLO connection option. |
| InitializeServer(); |
| InitializeFakeClient(/* supports_stateless_rejects= */ false); |
| |
| AdvanceHandshakeWithFakeClient(); |
| EXPECT_TRUE(server_stream()->encryption_established()); |
| EXPECT_TRUE(server_stream()->handshake_confirmed()); |
| EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, |
| server_session_->connection()->encryption_level()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, StatelessRejectAfterCHLO) { |
| FLAGS_enable_quic_stateless_reject_support = true; |
| |
| Initialize(); |
| |
| EXPECT_CALL(*server_connection_, |
| CloseConnection(QUIC_CRYPTO_HANDSHAKE_STATELESS_REJECT, _, _)); |
| |
| InitializeFakeClient(/* supports_stateless_rejects= */ true); |
| AdvanceHandshakeWithFakeClient(); |
| |
| // Check the server to make the sure the handshake did not succeed. |
| EXPECT_FALSE(server_stream()->encryption_established()); |
| EXPECT_FALSE(server_stream()->handshake_confirmed()); |
| |
| // Check the client state to make sure that it received a server-designated |
| // connection id. |
| QuicCryptoClientConfig::CachedState* client_state = |
| client_crypto_config_.LookupOrCreate(server_id_); |
| |
| ASSERT_TRUE(client_state->has_server_nonce()); |
| ASSERT_FALSE(client_state->GetNextServerNonce().empty()); |
| ASSERT_FALSE(client_state->has_server_nonce()); |
| |
| ASSERT_TRUE(client_state->has_server_designated_connection_id()); |
| const QuicConnectionId server_designated_connection_id = |
| client_state->GetNextServerDesignatedConnectionId(); |
| const QuicConnectionId expected_id = |
| server_connection_->random_generator()->RandUint64(); |
| EXPECT_EQ(expected_id, server_designated_connection_id); |
| EXPECT_FALSE(client_state->has_server_designated_connection_id()); |
| ASSERT_TRUE(client_state->IsComplete(QuicWallTime::FromUNIXSeconds(0))); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, ConnectedAfterStatelessHandshake) { |
| FLAGS_enable_quic_stateless_reject_support = true; |
| |
| Initialize(); |
| |
| InitializeFakeClient(/* supports_stateless_rejects= */ true); |
| AdvanceHandshakeWithFakeClient(); |
| |
| // On the first round, encryption will not be established. |
| EXPECT_FALSE(server_stream()->encryption_established()); |
| EXPECT_FALSE(server_stream()->handshake_confirmed()); |
| EXPECT_EQ(1, server_stream()->NumHandshakeMessages()); |
| EXPECT_EQ(0, server_stream()->NumHandshakeMessagesWithServerNonces()); |
| |
| // Now check the client state. |
| QuicCryptoClientConfig::CachedState* client_state = |
| client_crypto_config_.LookupOrCreate(server_id_); |
| |
| ASSERT_TRUE(client_state->has_server_designated_connection_id()); |
| const QuicConnectionId server_designated_connection_id = |
| client_state->GetNextServerDesignatedConnectionId(); |
| const QuicConnectionId expected_id = |
| server_connection_->random_generator()->RandUint64(); |
| EXPECT_EQ(expected_id, server_designated_connection_id); |
| EXPECT_FALSE(client_state->has_server_designated_connection_id()); |
| ASSERT_TRUE(client_state->IsComplete(QuicWallTime::FromUNIXSeconds(0))); |
| |
| // Now create new client and server streams with the existing config |
| // and try the handshake again (0-RTT handshake). |
| InitializeServer(); |
| |
| InitializeFakeClient(/* supports_stateless_rejects= */ true); |
| // In the stateless case, the second handshake contains a server-nonce, so the |
| // AsyncStrikeRegisterVerification() case will still succeed (unlike a 0-RTT |
| // handshake). |
| AdvanceHandshakeWithFakeClient(); |
| |
| // On the second round, encryption will be established. |
| EXPECT_TRUE(server_stream()->encryption_established()); |
| EXPECT_TRUE(server_stream()->handshake_confirmed()); |
| EXPECT_EQ(1, server_stream()->NumHandshakeMessages()); |
| EXPECT_EQ(1, server_stream()->NumHandshakeMessagesWithServerNonces()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, NoStatelessRejectIfNoClientSupport) { |
| FLAGS_enable_quic_stateless_reject_support = true; |
| |
| Initialize(); |
| |
| // The server is configured to use stateless rejects, but the client does not |
| // support it. |
| InitializeFakeClient(/* supports_stateless_rejects= */ false); |
| AdvanceHandshakeWithFakeClient(); |
| |
| // Check the server to make the sure the handshake did not succeed. |
| EXPECT_FALSE(server_stream()->encryption_established()); |
| EXPECT_FALSE(server_stream()->handshake_confirmed()); |
| |
| // Check the client state to make sure that it did not receive a |
| // server-designated connection id. |
| QuicCryptoClientConfig::CachedState* client_state = |
| client_crypto_config_.LookupOrCreate(server_id_); |
| |
| ASSERT_FALSE(client_state->has_server_designated_connection_id()); |
| ASSERT_TRUE(client_state->IsComplete(QuicWallTime::FromUNIXSeconds(0))); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, ZeroRTT) { |
| Initialize(); |
| InitializeFakeClient(/* supports_stateless_rejects= */ false); |
| |
| // Do a first handshake in order to prime the client config with the server's |
| // information. |
| AdvanceHandshakeWithFakeClient(); |
| |
| // Now do another handshake, hopefully in 0-RTT. |
| DVLOG(1) << "Resetting for 0-RTT handshake attempt"; |
| InitializeFakeClient(/* supports_stateless_rejects= */ false); |
| InitializeServer(); |
| |
| client_stream()->CryptoConnect(); |
| |
| CryptoTestUtils::CommunicateHandshakeMessages( |
| client_connection_, client_stream(), server_connection_, server_stream()); |
| |
| EXPECT_EQ(1, client_stream()->num_sent_client_hellos()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, FailByPolicy) { |
| Initialize(); |
| InitializeFakeClient(/* supports_stateless_rejects= */ false); |
| |
| EXPECT_CALL(*server_session_->helper(), CanAcceptClientHello(_, _, _)) |
| .WillOnce(testing::Return(false)); |
| EXPECT_CALL(*server_connection_, |
| CloseConnection(QUIC_HANDSHAKE_FAILED, _, _)); |
| |
| AdvanceHandshakeWithFakeClient(); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, MessageAfterHandshake) { |
| Initialize(); |
| CompleteCryptoHandshake(); |
| EXPECT_CALL( |
| *server_connection_, |
| CloseConnection(QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE, _, _)); |
| message_.set_tag(kCHLO); |
| ConstructHandshakeMessage(); |
| server_stream()->OnStreamFrame( |
| QuicStreamFrame(kCryptoStreamId, /*fin=*/false, /*offset=*/0, |
| message_data_->AsStringPiece())); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, BadMessageType) { |
| Initialize(); |
| |
| message_.set_tag(kSHLO); |
| ConstructHandshakeMessage(); |
| EXPECT_CALL(*server_connection_, |
| CloseConnection(QUIC_INVALID_CRYPTO_MESSAGE_TYPE, _, _)); |
| server_stream()->OnStreamFrame( |
| QuicStreamFrame(kCryptoStreamId, /*fin=*/false, /*offset=*/0, |
| message_data_->AsStringPiece())); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, ChannelID) { |
| Initialize(); |
| |
| client_options_.channel_id_enabled = true; |
| client_options_.channel_id_source_async = false; |
| // CompleteCryptoHandshake verifies |
| // server_stream()->crypto_negotiated_params().channel_id is correct. |
| EXPECT_EQ(2, CompleteCryptoHandshake()); |
| EXPECT_TRUE(server_stream()->encryption_established()); |
| EXPECT_TRUE(server_stream()->handshake_confirmed()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, ChannelIDAsync) { |
| Initialize(); |
| |
| client_options_.channel_id_enabled = true; |
| client_options_.channel_id_source_async = true; |
| // CompleteCryptoHandshake verifies |
| // server_stream()->crypto_negotiated_params().channel_id is correct. |
| EXPECT_EQ(2, CompleteCryptoHandshake()); |
| EXPECT_TRUE(server_stream()->encryption_established()); |
| EXPECT_TRUE(server_stream()->handshake_confirmed()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, OnlySendSCUPAfterHandshakeComplete) { |
| // An attempt to send a SCUP before completing handshake should fail. |
| Initialize(); |
| |
| server_stream()->SendServerConfigUpdate(nullptr); |
| EXPECT_EQ(0, server_stream()->NumServerConfigUpdateMessagesSent()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, SendSCUPAfterHandshakeComplete) { |
| // Do not send MAX_HEADER_LIST_SIZE SETTING frame. |
| // TODO(fayang): This SETTING frame cannot be decrypted and |
| // CryptoTestUtils::MovePackets stops processing parsing following packets. |
| // Actually, crypto stream test should use QuicSession instead of |
| // QuicSpdySession (b/32366134). |
| FLAGS_quic_send_max_header_list_size = false; |
| Initialize(); |
| |
| InitializeFakeClient(/* supports_stateless_rejects= */ false); |
| |
| // Do a first handshake in order to prime the client config with the server's |
| // information. |
| AdvanceHandshakeWithFakeClient(); |
| |
| // Now do another handshake, with the blocking SHLO connection option. |
| InitializeServer(); |
| InitializeFakeClient(/* supports_stateless_rejects= */ false); |
| AdvanceHandshakeWithFakeClient(); |
| |
| // Send a SCUP message and ensure that the client was able to verify it. |
| EXPECT_CALL(*client_connection_, CloseConnection(_, _, _)).Times(0); |
| server_stream()->SendServerConfigUpdate(nullptr); |
| CryptoTestUtils::AdvanceHandshake(client_connection_, client_stream(), 1, |
| server_connection_, server_stream(), 1); |
| |
| EXPECT_EQ(1, server_stream()->NumServerConfigUpdateMessagesSent()); |
| EXPECT_EQ(1, client_stream()->num_scup_messages_received()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, DoesPeerSupportStatelessRejects) { |
| Initialize(); |
| |
| ConstructHandshakeMessage(); |
| QuicConfig stateless_reject_config = DefaultQuicConfigStatelessRejects(); |
| stateless_reject_config.ToHandshakeMessage(&message_); |
| EXPECT_TRUE( |
| QuicCryptoServerStreamPeer::DoesPeerSupportStatelessRejects(message_)); |
| |
| message_.Clear(); |
| QuicConfig stateful_reject_config = DefaultQuicConfig(); |
| stateful_reject_config.ToHandshakeMessage(&message_); |
| EXPECT_FALSE( |
| QuicCryptoServerStreamPeer::DoesPeerSupportStatelessRejects(message_)); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, TokenBindingNegotiated) { |
| Initialize(); |
| |
| client_options_.token_binding_params = QuicTagVector{kTB10, kP256}; |
| CompleteCryptoHandshake(); |
| EXPECT_EQ( |
| kTB10, |
| server_stream()->crypto_negotiated_params().token_binding_key_param); |
| EXPECT_TRUE(server_stream()->encryption_established()); |
| EXPECT_TRUE(server_stream()->handshake_confirmed()); |
| } |
| |
| TEST_P(QuicCryptoServerStreamTest, NoTokenBindingWithoutClientSupport) { |
| Initialize(); |
| |
| CompleteCryptoHandshake(); |
| EXPECT_EQ( |
| 0u, server_stream()->crypto_negotiated_params().token_binding_key_param); |
| EXPECT_TRUE(server_stream()->encryption_established()); |
| EXPECT_TRUE(server_stream()->handshake_confirmed()); |
| } |
| |
| class FailingProofSource : public ProofSource { |
| public: |
| bool GetProof(const QuicSocketAddress& server_address, |
| const string& hostname, |
| const string& server_config, |
| QuicVersion quic_version, |
| StringPiece chlo_hash, |
| const QuicTagVector& connection_options, |
| scoped_refptr<ProofSource::Chain>* out_chain, |
| QuicCryptoProof* out_proof) override { |
| return false; |
| } |
| |
| void GetProof(const QuicSocketAddress& server_address, |
| const string& hostname, |
| const string& server_config, |
| QuicVersion quic_version, |
| StringPiece chlo_hash, |
| const QuicTagVector& connection_options, |
| std::unique_ptr<Callback> callback) override { |
| callback->Run(false, nullptr, QuicCryptoProof(), nullptr); |
| } |
| }; |
| |
| class QuicCryptoServerStreamTestWithFailingProofSource |
| : public QuicCryptoServerStreamTest { |
| public: |
| QuicCryptoServerStreamTestWithFailingProofSource() |
| : QuicCryptoServerStreamTest( |
| std::unique_ptr<FailingProofSource>(new FailingProofSource)) {} |
| }; |
| |
| INSTANTIATE_TEST_CASE_P(MoreTests, |
| QuicCryptoServerStreamTestWithFailingProofSource, |
| testing::Bool()); |
| |
| TEST_P(QuicCryptoServerStreamTestWithFailingProofSource, Test) { |
| Initialize(); |
| InitializeFakeClient(/* supports_stateless_rejects= */ false); |
| |
| // Regression test for b/31521252, in which a crash would happen here. |
| AdvanceHandshakeWithFakeClient(); |
| EXPECT_FALSE(server_stream()->encryption_established()); |
| EXPECT_FALSE(server_stream()->handshake_confirmed()); |
| } |
| |
| } // namespace |
| |
| } // namespace test |
| } // namespace net |