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// Copyright 2013 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/third_party/quiche/src/quic/core/crypto/quic_crypto_server_config.h"
#include <stdarg.h>
#include <memory>
#include <string>
#include "net/third_party/quiche/src/quic/core/crypto/cert_compressor.h"
#include "net/third_party/quiche/src/quic/core/crypto/chacha20_poly1305_encrypter.h"
#include "net/third_party/quiche/src/quic/core/crypto/crypto_handshake_message.h"
#include "net/third_party/quiche/src/quic/core/crypto/crypto_secret_boxer.h"
#include "net/third_party/quiche/src/quic/core/crypto/quic_random.h"
#include "net/third_party/quiche/src/quic/core/proto/crypto_server_config_proto.h"
#include "net/third_party/quiche/src/quic/core/quic_time.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_socket_address.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_test.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_text_utils.h"
#include "net/third_party/quiche/src/quic/test_tools/crypto_test_utils.h"
#include "net/third_party/quiche/src/quic/test_tools/mock_clock.h"
#include "net/third_party/quiche/src/quic/test_tools/quic_crypto_server_config_peer.h"
namespace quic {
namespace test {
using ::testing::Not;
// NOTE: This matcher depends on the wire format of serialzied protocol buffers,
// which may change in the future.
// Switch to ::testing::EqualsProto once it is available in Chromium.
MATCHER_P(SerializedProtoEquals, message, "") {
std::string expected_serialized, actual_serialized;
message.SerializeToString(&expected_serialized);
arg.SerializeToString(&actual_serialized);
return expected_serialized == actual_serialized;
}
class QuicCryptoServerConfigTest : public QuicTest {};
TEST_F(QuicCryptoServerConfigTest, ServerConfig) {
QuicRandom* rand = QuicRandom::GetInstance();
QuicCryptoServerConfig server(QuicCryptoServerConfig::TESTING, rand,
crypto_test_utils::ProofSourceForTesting(),
KeyExchangeSource::Default());
MockClock clock;
std::unique_ptr<CryptoHandshakeMessage> message(server.AddDefaultConfig(
rand, &clock, QuicCryptoServerConfig::ConfigOptions()));
// The default configuration should have AES-GCM and at least one ChaCha20
// cipher.
QuicTagVector aead;
ASSERT_EQ(QUIC_NO_ERROR, message->GetTaglist(kAEAD, &aead));
EXPECT_THAT(aead, ::testing::Contains(kAESG));
EXPECT_LE(1u, aead.size());
}
TEST_F(QuicCryptoServerConfigTest, CompressCerts) {
QuicCompressedCertsCache compressed_certs_cache(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize);
QuicRandom* rand = QuicRandom::GetInstance();
QuicCryptoServerConfig server(QuicCryptoServerConfig::TESTING, rand,
crypto_test_utils::ProofSourceForTesting(),
KeyExchangeSource::Default());
QuicCryptoServerConfigPeer peer(&server);
std::vector<std::string> certs = {"testcert"};
QuicReferenceCountedPointer<ProofSource::Chain> chain(
new ProofSource::Chain(certs));
std::string compressed = QuicCryptoServerConfigPeer::CompressChain(
&compressed_certs_cache, chain, "", "", nullptr);
EXPECT_EQ(compressed_certs_cache.Size(), 1u);
}
TEST_F(QuicCryptoServerConfigTest, CompressSameCertsTwice) {
QuicCompressedCertsCache compressed_certs_cache(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize);
QuicRandom* rand = QuicRandom::GetInstance();
QuicCryptoServerConfig server(QuicCryptoServerConfig::TESTING, rand,
crypto_test_utils::ProofSourceForTesting(),
KeyExchangeSource::Default());
QuicCryptoServerConfigPeer peer(&server);
// Compress the certs for the first time.
std::vector<std::string> certs = {"testcert"};
QuicReferenceCountedPointer<ProofSource::Chain> chain(
new ProofSource::Chain(certs));
std::string common_certs = "";
std::string cached_certs = "";
std::string compressed = QuicCryptoServerConfigPeer::CompressChain(
&compressed_certs_cache, chain, common_certs, cached_certs, nullptr);
EXPECT_EQ(compressed_certs_cache.Size(), 1u);
// Compress the same certs, should use cache if available.
std::string compressed2 = QuicCryptoServerConfigPeer::CompressChain(
&compressed_certs_cache, chain, common_certs, cached_certs, nullptr);
EXPECT_EQ(compressed, compressed2);
EXPECT_EQ(compressed_certs_cache.Size(), 1u);
}
TEST_F(QuicCryptoServerConfigTest, CompressDifferentCerts) {
// This test compresses a set of similar but not identical certs. Cache if
// used should return cache miss and add all the compressed certs.
QuicCompressedCertsCache compressed_certs_cache(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize);
QuicRandom* rand = QuicRandom::GetInstance();
QuicCryptoServerConfig server(QuicCryptoServerConfig::TESTING, rand,
crypto_test_utils::ProofSourceForTesting(),
KeyExchangeSource::Default());
QuicCryptoServerConfigPeer peer(&server);
std::vector<std::string> certs = {"testcert"};
QuicReferenceCountedPointer<ProofSource::Chain> chain(
new ProofSource::Chain(certs));
std::string common_certs = "";
std::string cached_certs = "";
std::string compressed = QuicCryptoServerConfigPeer::CompressChain(
&compressed_certs_cache, chain, common_certs, cached_certs, nullptr);
EXPECT_EQ(compressed_certs_cache.Size(), 1u);
// Compress a similar certs which only differs in the chain.
QuicReferenceCountedPointer<ProofSource::Chain> chain2(
new ProofSource::Chain(certs));
std::string compressed2 = QuicCryptoServerConfigPeer::CompressChain(
&compressed_certs_cache, chain2, common_certs, cached_certs, nullptr);
EXPECT_EQ(compressed_certs_cache.Size(), 2u);
// Compress a similar certs which only differs in common certs field.
static const uint64_t set_hash = 42;
std::unique_ptr<CommonCertSets> common_sets(
crypto_test_utils::MockCommonCertSets(certs[0], set_hash, 1));
QuicStringPiece different_common_certs(
reinterpret_cast<const char*>(&set_hash), sizeof(set_hash));
std::string compressed3 = QuicCryptoServerConfigPeer::CompressChain(
&compressed_certs_cache, chain, std::string(different_common_certs),
cached_certs, common_sets.get());
EXPECT_EQ(compressed_certs_cache.Size(), 3u);
}
class SourceAddressTokenTest : public QuicTest {
public:
SourceAddressTokenTest()
: ip4_(QuicIpAddress::Loopback4()),
ip4_dual_(ip4_.DualStacked()),
ip6_(QuicIpAddress::Loopback6()),
original_time_(QuicWallTime::Zero()),
rand_(QuicRandom::GetInstance()),
server_(QuicCryptoServerConfig::TESTING,
rand_,
crypto_test_utils::ProofSourceForTesting(),
KeyExchangeSource::Default()),
peer_(&server_) {
// Advance the clock to some non-zero time.
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1000000));
original_time_ = clock_.WallNow();
primary_config_ = server_.AddDefaultConfig(
rand_, &clock_, QuicCryptoServerConfig::ConfigOptions());
}
std::string NewSourceAddressToken(std::string config_id,
const QuicIpAddress& ip) {
return NewSourceAddressToken(config_id, ip, nullptr);
}
std::string NewSourceAddressToken(
std::string config_id,
const QuicIpAddress& ip,
const SourceAddressTokens& previous_tokens) {
return peer_.NewSourceAddressToken(config_id, previous_tokens, ip, rand_,
clock_.WallNow(), nullptr);
}
std::string NewSourceAddressToken(
std::string config_id,
const QuicIpAddress& ip,
CachedNetworkParameters* cached_network_params) {
SourceAddressTokens previous_tokens;
return peer_.NewSourceAddressToken(config_id, previous_tokens, ip, rand_,
clock_.WallNow(), cached_network_params);
}
HandshakeFailureReason ValidateSourceAddressTokens(std::string config_id,
QuicStringPiece srct,
const QuicIpAddress& ip) {
return ValidateSourceAddressTokens(config_id, srct, ip, nullptr);
}
HandshakeFailureReason ValidateSourceAddressTokens(
std::string config_id,
QuicStringPiece srct,
const QuicIpAddress& ip,
CachedNetworkParameters* cached_network_params) {
return peer_.ValidateSourceAddressTokens(
config_id, srct, ip, clock_.WallNow(), cached_network_params);
}
const std::string kPrimary = "<primary>";
const std::string kOverride = "Config with custom source address token key";
QuicIpAddress ip4_;
QuicIpAddress ip4_dual_;
QuicIpAddress ip6_;
MockClock clock_;
QuicWallTime original_time_;
QuicRandom* rand_ = QuicRandom::GetInstance();
QuicCryptoServerConfig server_;
QuicCryptoServerConfigPeer peer_;
// Stores the primary config.
std::unique_ptr<CryptoHandshakeMessage> primary_config_;
std::unique_ptr<QuicServerConfigProtobuf> override_config_protobuf_;
};
// Test basic behavior of source address tokens including being specific
// to a single IP address and server config.
TEST_F(SourceAddressTokenTest, SourceAddressToken) {
// Primary config generates configs that validate successfully.
const std::string token4 = NewSourceAddressToken(kPrimary, ip4_);
const std::string token4d = NewSourceAddressToken(kPrimary, ip4_dual_);
const std::string token6 = NewSourceAddressToken(kPrimary, ip6_);
EXPECT_EQ(HANDSHAKE_OK, ValidateSourceAddressTokens(kPrimary, token4, ip4_));
ASSERT_EQ(HANDSHAKE_OK,
ValidateSourceAddressTokens(kPrimary, token4, ip4_dual_));
ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DIFFERENT_IP_ADDRESS_FAILURE,
ValidateSourceAddressTokens(kPrimary, token4, ip6_));
ASSERT_EQ(HANDSHAKE_OK, ValidateSourceAddressTokens(kPrimary, token4d, ip4_));
ASSERT_EQ(HANDSHAKE_OK,
ValidateSourceAddressTokens(kPrimary, token4d, ip4_dual_));
ASSERT_EQ(SOURCE_ADDRESS_TOKEN_DIFFERENT_IP_ADDRESS_FAILURE,
ValidateSourceAddressTokens(kPrimary, token4d, ip6_));
ASSERT_EQ(HANDSHAKE_OK, ValidateSourceAddressTokens(kPrimary, token6, ip6_));
}
TEST_F(SourceAddressTokenTest, SourceAddressTokenExpiration) {
const std::string token = NewSourceAddressToken(kPrimary, ip4_);
// Validation fails if the token is from the future.
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(-3600 * 2));
ASSERT_EQ(SOURCE_ADDRESS_TOKEN_CLOCK_SKEW_FAILURE,
ValidateSourceAddressTokens(kPrimary, token, ip4_));
// Validation fails after tokens expire.
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(86400 * 7));
ASSERT_EQ(SOURCE_ADDRESS_TOKEN_EXPIRED_FAILURE,
ValidateSourceAddressTokens(kPrimary, token, ip4_));
}
TEST_F(SourceAddressTokenTest, SourceAddressTokenWithNetworkParams) {
// Make sure that if the source address token contains CachedNetworkParameters
// that this gets written to ValidateSourceAddressToken output argument.
CachedNetworkParameters cached_network_params_input;
cached_network_params_input.set_bandwidth_estimate_bytes_per_second(1234);
const std::string token4_with_cached_network_params =
NewSourceAddressToken(kPrimary, ip4_, &cached_network_params_input);
CachedNetworkParameters cached_network_params_output;
EXPECT_THAT(cached_network_params_output,
Not(SerializedProtoEquals(cached_network_params_input)));
ValidateSourceAddressTokens(kPrimary, token4_with_cached_network_params, ip4_,
&cached_network_params_output);
EXPECT_THAT(cached_network_params_output,
SerializedProtoEquals(cached_network_params_input));
}
// Test the ability for a source address token to be valid for multiple
// addresses.
TEST_F(SourceAddressTokenTest, SourceAddressTokenMultipleAddresses) {
QuicWallTime now = clock_.WallNow();
// Now create a token which is usable for both addresses.
SourceAddressToken previous_token;
previous_token.set_ip(ip6_.DualStacked().ToPackedString());
previous_token.set_timestamp(now.ToUNIXSeconds());
SourceAddressTokens previous_tokens;
(*previous_tokens.add_tokens()) = previous_token;
const std::string token4or6 =
NewSourceAddressToken(kPrimary, ip4_, previous_tokens);
EXPECT_EQ(HANDSHAKE_OK,
ValidateSourceAddressTokens(kPrimary, token4or6, ip4_));
ASSERT_EQ(HANDSHAKE_OK,
ValidateSourceAddressTokens(kPrimary, token4or6, ip6_));
}
class CryptoServerConfigsTest : public QuicTest {
public:
CryptoServerConfigsTest()
: rand_(QuicRandom::GetInstance()),
config_(QuicCryptoServerConfig::TESTING,
rand_,
crypto_test_utils::ProofSourceForTesting(),
KeyExchangeSource::Default()),
test_peer_(&config_) {}
void SetUp() override {
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1000));
}
// SetConfigs constructs suitable config protobufs and calls SetConfigs on
// |config_|.
// Each struct in the input vector contains 3 elements.
// The first is the server config ID of a Config. The second is
// the |primary_time| of that Config, given in epoch seconds. (Although note
// that, in these tests, time is set to 1000 seconds since the epoch.).
// The third is the priority.
//
// For example:
// SetConfigs(std::vector<ServerConfigIDWithTimeAndPriority>()); // calls
// |config_.SetConfigs| with no protobufs.
//
// // Calls |config_.SetConfigs| with two protobufs: one for a Config with
// // a |primary_time| of 900 and priority 1, and another with
// // a |primary_time| of 1000 and priority 2.
// CheckConfigs(
// {{"id1", 900, 1},
// {"id2", 1000, 2}});
//
// If the server config id starts with "INVALID" then the generated protobuf
// will be invalid.
struct ServerConfigIDWithTimeAndPriority {
ServerConfigID server_config_id;
int primary_time;
int priority;
};
void SetConfigs(std::vector<ServerConfigIDWithTimeAndPriority> configs) {
const char kOrbit[] = "12345678";
bool has_invalid = false;
std::vector<QuicServerConfigProtobuf> protobufs;
for (const auto& config : configs) {
const ServerConfigID& server_config_id = config.server_config_id;
const int primary_time = config.primary_time;
const int priority = config.priority;
QuicCryptoServerConfig::ConfigOptions options;
options.id = server_config_id;
options.orbit = kOrbit;
QuicServerConfigProtobuf protobuf =
QuicCryptoServerConfig::GenerateConfig(rand_, &clock_, options);
protobuf.set_primary_time(primary_time);
protobuf.set_priority(priority);
if (QuicTextUtils::StartsWith(std::string(server_config_id), "INVALID")) {
protobuf.clear_key();
has_invalid = true;
}
protobufs.push_back(std::move(protobuf));
}
ASSERT_EQ(!has_invalid && !configs.empty(),
config_.SetConfigs(protobufs, /* fallback_protobuf = */ nullptr,
clock_.WallNow()));
}
protected:
QuicRandom* const rand_;
MockClock clock_;
QuicCryptoServerConfig config_;
QuicCryptoServerConfigPeer test_peer_;
};
TEST_F(CryptoServerConfigsTest, NoConfigs) {
test_peer_.CheckConfigs(std::vector<std::pair<std::string, bool>>());
}
TEST_F(CryptoServerConfigsTest, MakePrimaryFirst) {
// Make sure that "b" is primary even though "a" comes first.
SetConfigs({{"a", 1100, 1}, {"b", 900, 1}});
test_peer_.CheckConfigs({{"a", false}, {"b", true}});
}
TEST_F(CryptoServerConfigsTest, MakePrimarySecond) {
// Make sure that a remains primary after b is added.
SetConfigs({{"a", 900, 1}, {"b", 1100, 1}});
test_peer_.CheckConfigs({{"a", true}, {"b", false}});
}
TEST_F(CryptoServerConfigsTest, Delete) {
// Ensure that configs get deleted when removed.
SetConfigs({{"a", 800, 1}, {"b", 900, 1}, {"c", 1100, 1}});
test_peer_.CheckConfigs({{"a", false}, {"b", true}, {"c", false}});
SetConfigs({{"b", 900, 1}, {"c", 1100, 1}});
test_peer_.CheckConfigs({{"b", true}, {"c", false}});
}
TEST_F(CryptoServerConfigsTest, DeletePrimary) {
// Ensure that deleting the primary config works.
SetConfigs({{"a", 800, 1}, {"b", 900, 1}, {"c", 1100, 1}});
test_peer_.CheckConfigs({{"a", false}, {"b", true}, {"c", false}});
SetConfigs({{"a", 800, 1}, {"c", 1100, 1}});
test_peer_.CheckConfigs({{"a", true}, {"c", false}});
}
TEST_F(CryptoServerConfigsTest, FailIfDeletingAllConfigs) {
// Ensure that configs get deleted when removed.
SetConfigs({{"a", 800, 1}, {"b", 900, 1}});
test_peer_.CheckConfigs({{"a", false}, {"b", true}});
SetConfigs(std::vector<ServerConfigIDWithTimeAndPriority>());
// Config change is rejected, still using old configs.
test_peer_.CheckConfigs({{"a", false}, {"b", true}});
}
TEST_F(CryptoServerConfigsTest, ChangePrimaryTime) {
// Check that updates to primary time get picked up.
SetConfigs({{"a", 400, 1}, {"b", 800, 1}, {"c", 1200, 1}});
test_peer_.SelectNewPrimaryConfig(500);
test_peer_.CheckConfigs({{"a", true}, {"b", false}, {"c", false}});
SetConfigs({{"a", 1200, 1}, {"b", 800, 1}, {"c", 400, 1}});
test_peer_.SelectNewPrimaryConfig(500);
test_peer_.CheckConfigs({{"a", false}, {"b", false}, {"c", true}});
}
TEST_F(CryptoServerConfigsTest, AllConfigsInThePast) {
// Check that the most recent config is selected.
SetConfigs({{"a", 400, 1}, {"b", 800, 1}, {"c", 1200, 1}});
test_peer_.SelectNewPrimaryConfig(1500);
test_peer_.CheckConfigs({{"a", false}, {"b", false}, {"c", true}});
}
TEST_F(CryptoServerConfigsTest, AllConfigsInTheFuture) {
// Check that the first config is selected.
SetConfigs({{"a", 400, 1}, {"b", 800, 1}, {"c", 1200, 1}});
test_peer_.SelectNewPrimaryConfig(100);
test_peer_.CheckConfigs({{"a", true}, {"b", false}, {"c", false}});
}
TEST_F(CryptoServerConfigsTest, SortByPriority) {
// Check that priority is used to decide on a primary config when
// configs have the same primary time.
SetConfigs({{"a", 900, 1}, {"b", 900, 2}, {"c", 900, 3}});
test_peer_.CheckConfigs({{"a", true}, {"b", false}, {"c", false}});
test_peer_.SelectNewPrimaryConfig(800);
test_peer_.CheckConfigs({{"a", true}, {"b", false}, {"c", false}});
test_peer_.SelectNewPrimaryConfig(1000);
test_peer_.CheckConfigs({{"a", true}, {"b", false}, {"c", false}});
// Change priorities and expect sort order to change.
SetConfigs({{"a", 900, 2}, {"b", 900, 1}, {"c", 900, 0}});
test_peer_.CheckConfigs({{"a", false}, {"b", false}, {"c", true}});
test_peer_.SelectNewPrimaryConfig(800);
test_peer_.CheckConfigs({{"a", false}, {"b", false}, {"c", true}});
test_peer_.SelectNewPrimaryConfig(1000);
test_peer_.CheckConfigs({{"a", false}, {"b", false}, {"c", true}});
}
TEST_F(CryptoServerConfigsTest, AdvancePrimary) {
// Check that a new primary config is enabled at the right time.
SetConfigs({{"a", 900, 1}, {"b", 1100, 1}});
test_peer_.SelectNewPrimaryConfig(1000);
test_peer_.CheckConfigs({{"a", true}, {"b", false}});
test_peer_.SelectNewPrimaryConfig(1101);
test_peer_.CheckConfigs({{"a", false}, {"b", true}});
}
class ValidateCallback : public ValidateClientHelloResultCallback {
public:
void Run(QuicReferenceCountedPointer<Result> /*result*/,
std::unique_ptr<ProofSource::Details> /*details*/) override {}
};
TEST_F(CryptoServerConfigsTest, AdvancePrimaryViaValidate) {
// Check that a new primary config is enabled at the right time.
SetConfigs({{"a", 900, 1}, {"b", 1100, 1}});
test_peer_.SelectNewPrimaryConfig(1000);
test_peer_.CheckConfigs({{"a", true}, {"b", false}});
CryptoHandshakeMessage client_hello;
QuicIpAddress client_ip;
QuicSocketAddress server_address;
QuicTransportVersion version = QUIC_VERSION_99;
MockClock clock;
QuicReferenceCountedPointer<QuicSignedServerConfig> signed_config(
new QuicSignedServerConfig);
std::unique_ptr<ValidateClientHelloResultCallback> done_cb(
new ValidateCallback);
clock.AdvanceTime(QuicTime::Delta::FromSeconds(1100));
config_.ValidateClientHello(client_hello, client_ip, server_address, version,
&clock, signed_config, std::move(done_cb));
test_peer_.CheckConfigs({{"a", false}, {"b", true}});
}
TEST_F(CryptoServerConfigsTest, InvalidConfigs) {
// Ensure that invalid configs don't change anything.
SetConfigs({{"a", 800, 1}, {"b", 900, 1}, {"c", 1100, 1}});
test_peer_.CheckConfigs({{"a", false}, {"b", true}, {"c", false}});
SetConfigs({{"a", 800, 1}, {"c", 1100, 1}, {"INVALID1", 1000, 1}});
test_peer_.CheckConfigs({{"a", false}, {"b", true}, {"c", false}});
}
} // namespace test
} // namespace quic
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