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76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
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// Copyright (c) 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_QUIC_CORE_TLS_HANDSHAKER_H_
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#define NET_QUIC_CORE_TLS_HANDSHAKER_H_
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#include "net/quic/core/crypto/crypto_handshake.h"
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#include "net/quic/core/crypto/quic_tls_adapter.h"
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#include "net/quic/platform/api/quic_export.h"
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#include "third_party/boringssl/src/include/openssl/base.h"
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namespace net {
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class QuicCryptoStream;
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class QuicSession;
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// Base class for TlsClientHandshaker and TlsServerHandshaker. TlsHandshaker
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// provides functionality common to both the client and server, such as moving
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// messages between the TLS stack and the QUIC crypto stream, and handling
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// derivation of secrets.
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class QUIC_EXPORT_PRIVATE TlsHandshaker : public QuicTlsAdapter::Visitor {
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public:
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// TlsHandshaker does not take ownership of any of its arguments; they must
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// outlive the TlsHandshaker.
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TlsHandshaker(QuicCryptoStream* stream,
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QuicSession* session,
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SSL_CTX* ssl_ctx);
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~TlsHandshaker() override;
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// Computes the 1-RTT secrets client_pp_secret_0 and server_pp_secret_0 from
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// which the packet protection keys are derived, as defined in
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// draft-ietf-quic-tls section 5.2.2. Returns true on success and false if
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// |ssl| is not in a state to export secrets.
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static bool DeriveSecrets(SSL* ssl,
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std::vector<uint8_t>* client_secret_out,
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std::vector<uint8_t>* server_secret_out);
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// From QuicTlsAdapter::Visitor
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void OnDataAvailableForBIO() override;
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void OnDataReceivedFromBIO(const QuicStringPiece& data) override;
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// From QuicCryptoStream
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virtual bool encryption_established() const = 0;
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virtual bool handshake_confirmed() const = 0;
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virtual const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
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const = 0;
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virtual CryptoMessageParser* crypto_message_parser();
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protected:
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virtual void AdvanceHandshake() = 0;
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// From a given SSL* |ssl|, returns a pointer to the TlsHandshaker that it
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// belongs to. This is a helper method for implementing callbacks set on an
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// SSL, as it allows the callback function to find the TlsHandshaker instance
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// and call an instance method.
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static TlsHandshaker* HandshakerFromSsl(const SSL* ssl);
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SSL* ssl() { return ssl_.get(); }
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QuicCryptoStream* stream() { return stream_; }
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QuicSession* session() { return session_; }
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private:
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QuicCryptoStream* stream_;
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QuicSession* session_;
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QuicTlsAdapter bio_adapter_;
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bssl::UniquePtr<SSL> ssl_;
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DISALLOW_COPY_AND_ASSIGN(TlsHandshaker);
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};
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} // namespace net
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#endif // NET_QUIC_CORE_TLS_HANDSHAKER_H_
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