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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 "net/quic/quic_crypto_client_stream.h"
#include "net/quic/test_tools/quic_test_utils.h"
using base::StringPiece;
using std::vector;
namespace net {
namespace test {
namespace {
const char kServerHostname[] = "localhost";
class TestQuicVisitor : public NoOpFramerVisitor {
public:
TestQuicVisitor() {}
// NoOpFramerVisitor
virtual void OnStreamFrame(const QuicStreamFrame& frame) {
frame_ = frame;
}
QuicStreamFrame* frame() { return &frame_; }
private:
QuicStreamFrame frame_;
DISALLOW_COPY_AND_ASSIGN(TestQuicVisitor);
};
class TestCryptoVisitor : public CryptoFramerVisitorInterface {
public:
TestCryptoVisitor()
: error_count_(0) {
}
virtual void OnError(CryptoFramer* framer) {
DLOG(ERROR) << "CryptoFramer Error: " << framer->error();
++error_count_;
}
virtual void OnHandshakeMessage(const CryptoHandshakeMessage& message) {
messages_.push_back(message);
}
// Counters from the visitor callbacks.
int error_count_;
vector<CryptoHandshakeMessage> messages_;
};
// The same as MockHelper, except that WritePacketToWire() checks whether
// the packet has the expected contents.
class TestMockHelper : public MockHelper {
public:
TestMockHelper() : packet_count_(0) {}
virtual ~TestMockHelper() {}
virtual int WritePacketToWire(const QuicEncryptedPacket& packet,
int* error) {
packet_count_++;
// The first packet should be ClientHello.
if (packet_count_ == 1) {
CheckClientHelloPacket(packet);
}
return MockHelper::WritePacketToWire(packet, error);
}
private:
void CheckClientHelloPacket(const QuicEncryptedPacket& packet);
int packet_count_;
};
void TestMockHelper::CheckClientHelloPacket(
const QuicEncryptedPacket& packet) {
QuicFramer quic_framer(QuicDecrypter::Create(kNULL),
QuicEncrypter::Create(kNULL));
TestQuicVisitor quic_visitor;
quic_framer.set_visitor(&quic_visitor);
ASSERT_TRUE(quic_framer.ProcessPacket(packet));
EXPECT_EQ(kCryptoStreamId, quic_visitor.frame()->stream_id);
EXPECT_FALSE(quic_visitor.frame()->fin);
EXPECT_EQ(0u, quic_visitor.frame()->offset);
// Check quic_visitor.frame()->data.
TestCryptoVisitor crypto_visitor;
CryptoFramer crypto_framer;
crypto_framer.set_visitor(&crypto_visitor);
ASSERT_TRUE(crypto_framer.ProcessInput(quic_visitor.frame()->data));
ASSERT_EQ(0u, crypto_framer.InputBytesRemaining());
ASSERT_EQ(1u, crypto_visitor.messages_.size());
EXPECT_EQ(kCHLO, crypto_visitor.messages_[0].tag);
CryptoTagValueMap& tag_value_map =
crypto_visitor.messages_[0].tag_value_map;
ASSERT_EQ(8u, tag_value_map.size());
// kSNI
EXPECT_EQ(kServerHostname, tag_value_map[kSNI]);
// kNONC
// TODO(wtc): check the nonce.
ASSERT_EQ(32u, tag_value_map[kNONC].size());
// kAEAD
ASSERT_EQ(8u, tag_value_map[kAEAD].size());
CryptoTag cipher[2];
memcpy(&cipher[0], &tag_value_map[kAEAD][0], 4);
memcpy(&cipher[1], &tag_value_map[kAEAD][4], 4);
EXPECT_EQ(kAESG, cipher[0]);
EXPECT_EQ(kAESH, cipher[1]);
// kICSL
ASSERT_EQ(4u, tag_value_map[kICSL].size());
uint32 idle_lifetime;
memcpy(&idle_lifetime, tag_value_map[kICSL].data(), 4);
EXPECT_EQ(300u, idle_lifetime);
// kKATO
ASSERT_EQ(4u, tag_value_map[kKATO].size());
uint32 keepalive_timeout;
memcpy(&keepalive_timeout, tag_value_map[kKATO].data(), 4);
EXPECT_EQ(0u, keepalive_timeout);
// kVERS
ASSERT_EQ(2u, tag_value_map[kVERS].size());
uint16 version;
memcpy(&version, tag_value_map[kVERS].data(), 2);
EXPECT_EQ(0u, version);
// kKEXS
ASSERT_EQ(8u, tag_value_map[kKEXS].size());
CryptoTag key_exchange[2];
memcpy(&key_exchange[0], &tag_value_map[kKEXS][0], 4);
memcpy(&key_exchange[1], &tag_value_map[kKEXS][4], 4);
EXPECT_EQ(kC255, key_exchange[0]);
EXPECT_EQ(kP256, key_exchange[1]);
// kCGST
ASSERT_EQ(4u, tag_value_map[kCGST].size());
CryptoTag congestion[1];
memcpy(&congestion[0], &tag_value_map[kCGST][0], 4);
EXPECT_EQ(kQBIC, congestion[0]);
}
// The same as MockSession, except that WriteData() is not mocked.
class TestMockSession : public MockSession {
public:
TestMockSession(QuicConnection* connection, bool is_server)
: MockSession(connection, is_server) {
}
virtual ~TestMockSession() {}
virtual QuicConsumedData WriteData(QuicStreamId id, StringPiece data,
QuicStreamOffset offset, bool fin) {
return QuicSession::WriteData(id, data, offset, fin);
}
};
class QuicCryptoClientStreamTest : public ::testing::Test {
public:
QuicCryptoClientStreamTest()
: connection_(new MockConnection(1, addr_, new TestMockHelper())),
session_(connection_, true),
stream_(&session_, kServerHostname) {
message_.tag = kSHLO;
message_.tag_value_map[1] = "abc";
message_.tag_value_map[2] = "def";
ConstructHandshakeMessage();
}
void ConstructHandshakeMessage() {
CryptoFramer framer;
message_data_.reset(framer.ConstructHandshakeMessage(message_));
}
IPEndPoint addr_;
MockConnection* connection_;
TestMockSession session_;
QuicCryptoClientStream stream_;
CryptoHandshakeMessage message_;
scoped_ptr<QuicData> message_data_;
};
TEST_F(QuicCryptoClientStreamTest, NotInitiallyConected) {
EXPECT_FALSE(stream_.handshake_complete());
}
TEST_F(QuicCryptoClientStreamTest, ConnectedAfterSHLO) {
stream_.ProcessData(message_data_->data(), message_data_->length());
EXPECT_TRUE(stream_.handshake_complete());
}
TEST_F(QuicCryptoClientStreamTest, MessageAfterHandshake) {
stream_.ProcessData(message_data_->data(), message_data_->length());
EXPECT_CALL(*connection_, SendConnectionClose(
QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE));
stream_.ProcessData(message_data_->data(), message_data_->length());
}
TEST_F(QuicCryptoClientStreamTest, BadMessageType) {
message_.tag = kCHLO;
ConstructHandshakeMessage();
EXPECT_CALL(*connection_,
SendConnectionClose(QUIC_INVALID_CRYPTO_MESSAGE_TYPE));
stream_.ProcessData(message_data_->data(), message_data_->length());
}
TEST_F(QuicCryptoClientStreamTest, CryptoConnect) {
EXPECT_TRUE(stream_.CryptoConnect());
}
} // namespace
} // namespace test
} // namespace net
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