blob: 2644d37b1f1bc46da7d8bfaeea17d67e0f3cf3ae [file] [log] [blame]
// 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/quic_crypto_client_stream.h"
#include <memory>
#include "net/quic/crypto/aes_128_gcm_12_encrypter.h"
#include "net/quic/crypto/quic_decrypter.h"
#include "net/quic/crypto/quic_encrypter.h"
#include "net/quic/quic_flags.h"
#include "net/quic/quic_protocol.h"
#include "net/quic/quic_server_id.h"
#include "net/quic/quic_utils.h"
#include "net/quic/test_tools/crypto_test_utils.h"
#include "net/quic/test_tools/quic_test_utils.h"
#include "net/quic/test_tools/simple_quic_framer.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using std::string;
using std::vector;
using testing::_;
namespace net {
namespace test {
namespace {
const char kServerHostname[] = "test.example.com";
const uint16_t kServerPort = 443;
class QuicCryptoClientStreamTest : public ::testing::Test {
public:
QuicCryptoClientStreamTest()
: server_id_(kServerHostname, kServerPort, PRIVACY_MODE_DISABLED),
crypto_config_(CryptoTestUtils::ProofVerifierForTesting()) {
CreateConnection();
}
void CreateConnection() {
connection_ = new PacketSavingConnection(&helper_, &alarm_factory_,
Perspective::IS_CLIENT);
// Advance the time, because timers do not like uninitialized times.
connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1));
session_.reset(new TestQuicSpdyClientSession(
connection_, DefaultQuicConfig(), server_id_, &crypto_config_));
}
void CompleteCryptoHandshake() {
stream()->CryptoConnect();
CryptoTestUtils::HandshakeWithFakeServer(
&helper_, &alarm_factory_, connection_, stream(), server_options_);
}
void ConstructHandshakeMessage() {
CryptoFramer framer;
message_data_.reset(framer.ConstructHandshakeMessage(message_));
}
QuicCryptoClientStream* stream() { return session_->GetCryptoStream(); }
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
PacketSavingConnection* connection_;
std::unique_ptr<TestQuicSpdyClientSession> session_;
QuicServerId server_id_;
CryptoHandshakeMessage message_;
std::unique_ptr<QuicData> message_data_;
QuicCryptoClientConfig crypto_config_;
CryptoTestUtils::FakeServerOptions server_options_;
};
TEST_F(QuicCryptoClientStreamTest, NotInitiallyConected) {
EXPECT_FALSE(stream()->encryption_established());
EXPECT_FALSE(stream()->handshake_confirmed());
}
TEST_F(QuicCryptoClientStreamTest, ConnectedAfterSHLO) {
CompleteCryptoHandshake();
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->handshake_confirmed());
}
TEST_F(QuicCryptoClientStreamTest, MessageAfterHandshake) {
CompleteCryptoHandshake();
EXPECT_CALL(
*connection_,
CloseConnection(QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE, _, _));
message_.set_tag(kCHLO);
ConstructHandshakeMessage();
stream()->OnStreamFrame(QuicStreamFrame(kCryptoStreamId, /*fin=*/false,
/*offset=*/0,
message_data_->AsStringPiece()));
}
TEST_F(QuicCryptoClientStreamTest, BadMessageType) {
stream()->CryptoConnect();
message_.set_tag(kCHLO);
ConstructHandshakeMessage();
EXPECT_CALL(*connection_, CloseConnection(QUIC_INVALID_CRYPTO_MESSAGE_TYPE,
"Expected REJ", _));
stream()->OnStreamFrame(QuicStreamFrame(kCryptoStreamId, /*fin=*/false,
/*offset=*/0,
message_data_->AsStringPiece()));
}
TEST_F(QuicCryptoClientStreamTest, NegotiatedParameters) {
CompleteCryptoHandshake();
const QuicConfig* config = session_->config();
EXPECT_EQ(kMaximumIdleTimeoutSecs,
config->IdleConnectionStateLifetime().ToSeconds());
EXPECT_EQ(kDefaultMaxStreamsPerConnection, config->MaxStreamsPerConnection());
const QuicCryptoNegotiatedParameters& crypto_params(
stream()->crypto_negotiated_params());
EXPECT_EQ(crypto_config_.aead[0], crypto_params.aead);
EXPECT_EQ(crypto_config_.kexs[0], crypto_params.key_exchange);
}
TEST_F(QuicCryptoClientStreamTest, ExpiredServerConfig) {
// Seed the config with a cached server config.
CompleteCryptoHandshake();
// Recreate connection with the new config.
CreateConnection();
// Advance time 5 years to ensure that we pass the expiry time of the cached
// server config.
connection_->AdvanceTime(
QuicTime::Delta::FromSeconds(60 * 60 * 24 * 365 * 5));
stream()->CryptoConnect();
// Check that a client hello was sent.
ASSERT_EQ(1u, connection_->encrypted_packets_.size());
}
TEST_F(QuicCryptoClientStreamTest, InvalidCachedServerConfig) {
// Seed the config with a cached server config.
CompleteCryptoHandshake();
// Recreate connection with the new config.
CreateConnection();
QuicCryptoClientConfig::CachedState* state =
crypto_config_.LookupOrCreate(server_id_);
vector<string> certs = state->certs();
string cert_sct = state->cert_sct();
string signature = state->signature();
string chlo_hash = state->chlo_hash();
state->SetProof(certs, cert_sct, chlo_hash, signature + signature);
stream()->CryptoConnect();
// Check that a client hello was sent.
ASSERT_EQ(1u, connection_->encrypted_packets_.size());
}
TEST_F(QuicCryptoClientStreamTest, ServerConfigUpdate) {
// Test that the crypto client stream can receive server config updates after
// the connection has been established.
CompleteCryptoHandshake();
QuicCryptoClientConfig::CachedState* state =
crypto_config_.LookupOrCreate(server_id_);
// Ensure cached STK is different to what we send in the handshake.
EXPECT_NE("xstk", state->source_address_token());
// Initialize using {...} syntax to avoid trailing \0 if converting from
// string.
unsigned char stk[] = {'x', 's', 't', 'k'};
// Minimum SCFG that passes config validation checks.
unsigned char scfg[] = {// SCFG
0x53, 0x43, 0x46, 0x47,
// num entries
0x01, 0x00,
// padding
0x00, 0x00,
// EXPY
0x45, 0x58, 0x50, 0x59,
// EXPY end offset
0x08, 0x00, 0x00, 0x00,
// Value
'1', '2', '3', '4', '5', '6', '7', '8'};
CryptoHandshakeMessage server_config_update;
server_config_update.set_tag(kSCUP);
server_config_update.SetValue(kSourceAddressTokenTag, stk);
server_config_update.SetValue(kSCFG, scfg);
std::unique_ptr<QuicData> data(
CryptoFramer::ConstructHandshakeMessage(server_config_update));
stream()->OnStreamFrame(QuicStreamFrame(kCryptoStreamId, /*fin=*/false,
/*offset=*/0, data->AsStringPiece()));
// Make sure that the STK and SCFG are cached correctly.
EXPECT_EQ("xstk", state->source_address_token());
string cached_scfg = state->server_config();
test::CompareCharArraysWithHexError(
"scfg", cached_scfg.data(), cached_scfg.length(),
QuicUtils::AsChars(scfg), arraysize(scfg));
}
TEST_F(QuicCryptoClientStreamTest, ServerConfigUpdateBeforeHandshake) {
EXPECT_CALL(
*connection_,
CloseConnection(QUIC_CRYPTO_UPDATE_BEFORE_HANDSHAKE_COMPLETE, _, _));
CryptoHandshakeMessage server_config_update;
server_config_update.set_tag(kSCUP);
std::unique_ptr<QuicData> data(
CryptoFramer::ConstructHandshakeMessage(server_config_update));
stream()->OnStreamFrame(QuicStreamFrame(kCryptoStreamId, /*fin=*/false,
/*offset=*/0, data->AsStringPiece()));
}
TEST_F(QuicCryptoClientStreamTest, TokenBindingNegotiation) {
server_options_.token_binding_enabled = true;
crypto_config_.tb_key_params.push_back(kP256);
CompleteCryptoHandshake();
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->handshake_confirmed());
EXPECT_EQ(kP256,
stream()->crypto_negotiated_params().token_binding_key_param);
}
TEST_F(QuicCryptoClientStreamTest, NoTokenBindingWithoutServerSupport) {
crypto_config_.tb_key_params.push_back(kP256);
CompleteCryptoHandshake();
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->handshake_confirmed());
EXPECT_EQ(0u, stream()->crypto_negotiated_params().token_binding_key_param);
}
TEST_F(QuicCryptoClientStreamTest, NoTokenBindingWithoutClientSupport) {
server_options_.token_binding_enabled = true;
CompleteCryptoHandshake();
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->handshake_confirmed());
EXPECT_EQ(0u, stream()->crypto_negotiated_params().token_binding_key_param);
}
TEST_F(QuicCryptoClientStreamTest, TokenBindingNotNegotiated) {
CompleteCryptoHandshake();
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->handshake_confirmed());
EXPECT_EQ(0u, stream()->crypto_negotiated_params().token_binding_key_param);
}
class QuicCryptoClientStreamStatelessTest : public ::testing::Test {
public:
QuicCryptoClientStreamStatelessTest()
: client_crypto_config_(CryptoTestUtils::ProofVerifierForTesting()),
server_crypto_config_(QuicCryptoServerConfig::TESTING,
QuicRandom::GetInstance(),
CryptoTestUtils::ProofSourceForTesting()),
server_compressed_certs_cache_(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize),
server_id_(kServerHostname, kServerPort, PRIVACY_MODE_DISABLED) {
TestQuicSpdyClientSession* client_session = nullptr;
CreateClientSessionForTest(server_id_,
/* supports_stateless_rejects= */ true,
QuicTime::Delta::FromSeconds(100000),
QuicSupportedVersions(), &helper_,
&alarm_factory_, &client_crypto_config_,
&client_connection_, &client_session);
CHECK(client_session);
client_session_.reset(client_session);
}
QuicCryptoServerStream* server_stream() {
return server_session_->GetCryptoStream();
}
void AdvanceHandshakeWithFakeServer() {
client_session_->GetCryptoStream()->CryptoConnect();
CryptoTestUtils::AdvanceHandshake(client_connection_,
client_session_->GetCryptoStream(), 0,
server_connection_, server_stream(), 0);
}
// Initializes the server_stream_ for stateless rejects.
void InitializeFakeStatelessRejectServer() {
TestQuicSpdyServerSession* server_session = nullptr;
CreateServerSessionForTest(server_id_, QuicTime::Delta::FromSeconds(100000),
QuicSupportedVersions(), &helper_,
&alarm_factory_, &server_crypto_config_,
&server_compressed_certs_cache_,
&server_connection_, &server_session);
CHECK(server_session);
server_session_.reset(server_session);
CryptoTestUtils::FakeServerOptions options;
CryptoTestUtils::SetupCryptoServerConfigForTest(
server_connection_->clock(), server_connection_->random_generator(),
server_session_->config(), &server_crypto_config_, options);
FLAGS_enable_quic_stateless_reject_support = true;
}
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
// Client crypto stream state
PacketSavingConnection* client_connection_;
std::unique_ptr<TestQuicSpdyClientSession> client_session_;
QuicCryptoClientConfig client_crypto_config_;
// Server crypto stream state
PacketSavingConnection* server_connection_;
std::unique_ptr<TestQuicSpdyServerSession> server_session_;
QuicCryptoServerConfig server_crypto_config_;
QuicCompressedCertsCache server_compressed_certs_cache_;
QuicServerId server_id_;
};
TEST_F(QuicCryptoClientStreamStatelessTest, StatelessReject) {
ValueRestore<bool> old_flag(&FLAGS_enable_quic_stateless_reject_support,
true);
QuicCryptoClientConfig::CachedState* client_state =
client_crypto_config_.LookupOrCreate(server_id_);
EXPECT_FALSE(client_state->has_server_designated_connection_id());
EXPECT_CALL(*client_session_, OnProofValid(testing::_));
InitializeFakeStatelessRejectServer();
AdvanceHandshakeWithFakeServer();
EXPECT_EQ(1, server_stream()->NumHandshakeMessages());
EXPECT_EQ(0, server_stream()->NumHandshakeMessagesWithServerNonces());
EXPECT_FALSE(client_session_->GetCryptoStream()->encryption_established());
EXPECT_FALSE(client_session_->GetCryptoStream()->handshake_confirmed());
// Even though the handshake was not complete, the cached client_state is
// complete, and can be used for a subsequent successful handshake.
EXPECT_TRUE(client_state->IsComplete(QuicWallTime::FromUNIXSeconds(0)));
ASSERT_TRUE(client_state->has_server_nonce());
ASSERT_FALSE(client_state->GetNextServerNonce().empty());
ASSERT_TRUE(client_state->has_server_designated_connection_id());
QuicConnectionId server_designated_id =
client_state->GetNextServerDesignatedConnectionId();
QuicConnectionId expected_id =
server_session_->connection()->random_generator()->RandUint64();
EXPECT_EQ(expected_id, server_designated_id);
EXPECT_FALSE(client_state->has_server_designated_connection_id());
}
} // namespace
} // namespace test
} // namespace net