1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
// Copyright (c) 2017 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.
#ifndef QUICHE_QUIC_CORE_TLS_CLIENT_HANDSHAKER_H_
#define QUICHE_QUIC_CORE_TLS_CLIENT_HANDSHAKER_H_
#include <string>
#include "third_party/boringssl/src/include/openssl/ssl.h"
#include "net/third_party/quiche/src/quic/core/crypto/proof_verifier.h"
#include "net/third_party/quiche/src/quic/core/quic_crypto_client_stream.h"
#include "net/third_party/quiche/src/quic/core/quic_crypto_stream.h"
#include "net/third_party/quiche/src/quic/core/tls_handshaker.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
namespace quic {
// An implementation of QuicCryptoClientStream::HandshakerDelegate which uses
// TLS 1.3 for the crypto handshake protocol.
class QUIC_EXPORT_PRIVATE TlsClientHandshaker
: public QuicCryptoClientStream::HandshakerDelegate,
public TlsHandshaker {
public:
TlsClientHandshaker(QuicCryptoStream* stream,
QuicSession* session,
const QuicServerId& server_id,
ProofVerifier* proof_verifier,
SSL_CTX* ssl_ctx,
std::unique_ptr<ProofVerifyContext> verify_context,
const std::string& user_agent_id);
TlsClientHandshaker(const TlsClientHandshaker&) = delete;
TlsClientHandshaker& operator=(const TlsClientHandshaker&) = delete;
~TlsClientHandshaker() override;
// Creates and configures an SSL_CTX to be used with a TlsClientHandshaker.
// The caller is responsible for ownership of the newly created struct.
static bssl::UniquePtr<SSL_CTX> CreateSslCtx();
// From QuicCryptoClientStream::HandshakerDelegate
bool CryptoConnect() override;
int num_sent_client_hellos() const override;
int num_scup_messages_received() const override;
bool WasChannelIDSent() const override;
bool WasChannelIDSourceCallbackRun() const override;
std::string chlo_hash() const override;
// From QuicCryptoClientStream::HandshakerDelegate and TlsHandshaker
bool encryption_established() const override;
bool handshake_confirmed() const override;
const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
const override;
CryptoMessageParser* crypto_message_parser() override;
private:
// ProofVerifierCallbackImpl handles the result of an asynchronous certificate
// verification operation.
class ProofVerifierCallbackImpl : public ProofVerifierCallback {
public:
explicit ProofVerifierCallbackImpl(TlsClientHandshaker* parent);
~ProofVerifierCallbackImpl() override;
// ProofVerifierCallback interface.
void Run(bool ok,
const std::string& error_details,
std::unique_ptr<ProofVerifyDetails>* details) override;
// If called, Cancel causes the pending callback to be a no-op.
void Cancel();
private:
TlsClientHandshaker* parent_;
};
enum State {
STATE_IDLE,
STATE_HANDSHAKE_RUNNING,
STATE_CERT_VERIFY_PENDING,
STATE_HANDSHAKE_COMPLETE,
STATE_CONNECTION_CLOSED,
} state_ = STATE_IDLE;
bool SetTransportParameters();
bool ProcessTransportParameters(std::string* error_details);
void FinishHandshake();
void AdvanceHandshake() override;
void CloseConnection(QuicErrorCode error,
const std::string& reason_phrase) override;
// Certificate verification functions:
enum ssl_verify_result_t VerifyCert(uint8_t* out_alert);
// Static method to supply to SSL_set_custom_verify.
static enum ssl_verify_result_t VerifyCallback(SSL* ssl, uint8_t* out_alert);
// Takes an SSL* |ssl| and returns a pointer to the TlsClientHandshaker that
// it belongs to. This is a specialization of
// TlsHandshaker::HandshakerFromSsl.
static TlsClientHandshaker* HandshakerFromSsl(SSL* ssl);
QuicServerId server_id_;
// Objects used for verifying the server's certificate chain.
// |proof_verifier_| is owned by the caller of TlsClientHandshaker's
// constructor.
ProofVerifier* proof_verifier_;
std::unique_ptr<ProofVerifyContext> verify_context_;
std::string user_agent_id_;
// ProofVerifierCallback used for async certificate verification. This object
// is owned by |proof_verifier_|.
ProofVerifierCallbackImpl* proof_verify_callback_ = nullptr;
std::unique_ptr<ProofVerifyDetails> verify_details_;
enum ssl_verify_result_t verify_result_ = ssl_verify_retry;
std::string cert_verify_error_details_;
bool encryption_established_ = false;
bool handshake_confirmed_ = false;
QuicReferenceCountedPointer<QuicCryptoNegotiatedParameters>
crypto_negotiated_params_;
};
} // namespace quic
#endif // QUICHE_QUIC_CORE_TLS_CLIENT_HANDSHAKER_H_
|
