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// 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 "quic/test_tools/crypto_test_utils.h"
#include <utility>
#include "absl/strings/escaping.h"
#include "absl/strings/string_view.h"
#include "quic/core/proto/crypto_server_config_proto.h"
#include "quic/core/quic_utils.h"
#include "quic/platform/api/quic_test.h"
#include "quic/test_tools/mock_clock.h"
#include "common/platform/api/quiche_text_utils.h"
namespace quic {
namespace test {
class ShloVerifier {
public:
ShloVerifier(
QuicCryptoServerConfig* crypto_config,
QuicSocketAddress server_addr,
QuicSocketAddress client_addr,
const QuicClock* clock,
QuicReferenceCountedPointer<QuicSignedServerConfig> signed_config,
QuicCompressedCertsCache* compressed_certs_cache,
ParsedQuicVersion version)
: crypto_config_(crypto_config),
server_addr_(server_addr),
client_addr_(client_addr),
clock_(clock),
signed_config_(signed_config),
compressed_certs_cache_(compressed_certs_cache),
params_(new QuicCryptoNegotiatedParameters),
version_(version) {}
class ValidateClientHelloCallback : public ValidateClientHelloResultCallback {
public:
explicit ValidateClientHelloCallback(ShloVerifier* shlo_verifier)
: shlo_verifier_(shlo_verifier) {}
void Run(QuicReferenceCountedPointer<
ValidateClientHelloResultCallback::Result> result,
std::unique_ptr<ProofSource::Details> /* details */) override {
shlo_verifier_->ValidateClientHelloDone(result);
}
private:
ShloVerifier* shlo_verifier_;
};
std::unique_ptr<ValidateClientHelloCallback>
GetValidateClientHelloCallback() {
return std::make_unique<ValidateClientHelloCallback>(this);
}
private:
void ValidateClientHelloDone(
const QuicReferenceCountedPointer<
ValidateClientHelloResultCallback::Result>& result) {
result_ = result;
crypto_config_->ProcessClientHello(
result_, /*reject_only=*/false,
/*connection_id=*/TestConnectionId(1), server_addr_, client_addr_,
version_, AllSupportedVersions(), clock_, QuicRandom::GetInstance(),
compressed_certs_cache_, params_, signed_config_,
/*total_framing_overhead=*/50, kDefaultMaxPacketSize,
GetProcessClientHelloCallback());
}
class ProcessClientHelloCallback : public ProcessClientHelloResultCallback {
public:
explicit ProcessClientHelloCallback(ShloVerifier* shlo_verifier)
: shlo_verifier_(shlo_verifier) {}
void Run(QuicErrorCode /*error*/,
const std::string& /*error_details*/,
std::unique_ptr<CryptoHandshakeMessage> message,
std::unique_ptr<DiversificationNonce> /*diversification_nonce*/,
std::unique_ptr<ProofSource::Details> /*proof_source_details*/)
override {
shlo_verifier_->ProcessClientHelloDone(std::move(message));
}
private:
ShloVerifier* shlo_verifier_;
};
std::unique_ptr<ProcessClientHelloCallback> GetProcessClientHelloCallback() {
return std::make_unique<ProcessClientHelloCallback>(this);
}
void ProcessClientHelloDone(std::unique_ptr<CryptoHandshakeMessage> message) {
// Verify output is a SHLO.
EXPECT_EQ(message->tag(), kSHLO)
<< "Fail to pass validation. Get " << message->DebugString();
}
QuicCryptoServerConfig* crypto_config_;
QuicSocketAddress server_addr_;
QuicSocketAddress client_addr_;
const QuicClock* clock_;
QuicReferenceCountedPointer<QuicSignedServerConfig> signed_config_;
QuicCompressedCertsCache* compressed_certs_cache_;
QuicReferenceCountedPointer<QuicCryptoNegotiatedParameters> params_;
QuicReferenceCountedPointer<ValidateClientHelloResultCallback::Result>
result_;
const ParsedQuicVersion version_;
};
class CryptoTestUtilsTest : public QuicTest {};
TEST_F(CryptoTestUtilsTest, TestGenerateFullCHLO) {
MockClock clock;
QuicCryptoServerConfig crypto_config(
QuicCryptoServerConfig::TESTING, QuicRandom::GetInstance(),
crypto_test_utils::ProofSourceForTesting(), KeyExchangeSource::Default());
QuicSocketAddress server_addr(QuicIpAddress::Any4(), 5);
QuicSocketAddress client_addr(QuicIpAddress::Loopback4(), 1);
QuicReferenceCountedPointer<QuicSignedServerConfig> signed_config(
new QuicSignedServerConfig);
QuicCompressedCertsCache compressed_certs_cache(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize);
CryptoHandshakeMessage full_chlo;
QuicCryptoServerConfig::ConfigOptions old_config_options;
old_config_options.id = "old-config-id";
crypto_config.AddDefaultConfig(QuicRandom::GetInstance(), &clock,
old_config_options);
QuicCryptoServerConfig::ConfigOptions new_config_options;
QuicServerConfigProtobuf primary_config = crypto_config.GenerateConfig(
QuicRandom::GetInstance(), &clock, new_config_options);
primary_config.set_primary_time(clock.WallNow().ToUNIXSeconds());
std::unique_ptr<CryptoHandshakeMessage> msg =
crypto_config.AddConfig(primary_config, clock.WallNow());
absl::string_view orbit;
ASSERT_TRUE(msg->GetStringPiece(kORBT, &orbit));
std::string nonce;
CryptoUtils::GenerateNonce(clock.WallNow(), QuicRandom::GetInstance(), orbit,
&nonce);
std::string nonce_hex = "#" + absl::BytesToHexString(nonce);
char public_value[32];
memset(public_value, 42, sizeof(public_value));
std::string pub_hex = "#" + absl::BytesToHexString(absl::string_view(
public_value, sizeof(public_value)));
// The methods below use a PROTOCOL_QUIC_CRYPTO version so we pick the
// first one from the list of supported versions.
QuicTransportVersion transport_version = QUIC_VERSION_UNSUPPORTED;
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
if (version.handshake_protocol == PROTOCOL_QUIC_CRYPTO) {
transport_version = version.transport_version;
break;
}
}
ASSERT_NE(QUIC_VERSION_UNSUPPORTED, transport_version);
CryptoHandshakeMessage inchoate_chlo = crypto_test_utils::CreateCHLO(
{{"PDMD", "X509"},
{"AEAD", "AESG"},
{"KEXS", "C255"},
{"COPT", "SREJ"},
{"PUBS", pub_hex},
{"NONC", nonce_hex},
{"VER\0",
QuicVersionLabelToString(CreateQuicVersionLabel(
ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, transport_version)))}},
kClientHelloMinimumSize);
crypto_test_utils::GenerateFullCHLO(inchoate_chlo, &crypto_config,
server_addr, client_addr,
transport_version, &clock, signed_config,
&compressed_certs_cache, &full_chlo);
// Verify that full_chlo can pass crypto_config's verification.
ShloVerifier shlo_verifier(
&crypto_config, server_addr, client_addr, &clock, signed_config,
&compressed_certs_cache,
ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, transport_version));
crypto_config.ValidateClientHello(
full_chlo, client_addr, server_addr, transport_version, &clock,
signed_config, shlo_verifier.GetValidateClientHelloCallback());
}
} // namespace test
} // namespace quic
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