| // 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 NET_THIRD_PARTY_QUIC_CORE_TLS_HANDSHAKER_H_ |
| #define NET_THIRD_PARTY_QUIC_CORE_TLS_HANDSHAKER_H_ |
| |
| #include "net/third_party/quic/core/crypto/crypto_handshake.h" |
| #include "net/third_party/quic/core/crypto/quic_decrypter.h" |
| #include "net/third_party/quic/core/crypto/quic_encrypter.h" |
| #include "net/third_party/quic/core/crypto/quic_tls_adapter.h" |
| #include "net/third_party/quic/platform/api/quic_export.h" |
| #include "third_party/boringssl/src/include/openssl/base.h" |
| |
| namespace quic { |
| |
| class QuicCryptoStream; |
| class QuicSession; |
| |
| // Base class for TlsClientHandshaker and TlsServerHandshaker. TlsHandshaker |
| // provides functionality common to both the client and server, such as moving |
| // messages between the TLS stack and the QUIC crypto stream, and handling |
| // derivation of secrets. |
| class QUIC_EXPORT_PRIVATE TlsHandshaker : public QuicTlsAdapter::Visitor { |
| public: |
| // TlsHandshaker does not take ownership of any of its arguments; they must |
| // outlive the TlsHandshaker. |
| TlsHandshaker(QuicCryptoStream* stream, |
| QuicSession* session, |
| SSL_CTX* ssl_ctx); |
| TlsHandshaker(const TlsHandshaker&) = delete; |
| TlsHandshaker& operator=(const TlsHandshaker&) = delete; |
| |
| ~TlsHandshaker() override; |
| |
| // From QuicTlsAdapter::Visitor |
| void OnDataAvailableForBIO() override; |
| void OnDataReceivedFromBIO(const QuicStringPiece& data) override; |
| |
| // From QuicCryptoStream |
| virtual QuicLongHeaderType GetLongHeaderType( |
| QuicStreamOffset offset) const = 0; |
| virtual bool encryption_established() const = 0; |
| virtual bool handshake_confirmed() const = 0; |
| virtual const QuicCryptoNegotiatedParameters& crypto_negotiated_params() |
| const = 0; |
| virtual CryptoMessageParser* crypto_message_parser(); |
| |
| protected: |
| virtual void AdvanceHandshake() = 0; |
| |
| // Creates an SSL_CTX and configures it with the options that are appropriate |
| // for both client and server. The caller is responsible for ownership of the |
| // newly created struct. |
| static bssl::UniquePtr<SSL_CTX> CreateSslCtx(); |
| |
| // From a given SSL* |ssl|, returns a pointer to the TlsHandshaker that it |
| // belongs to. This is a helper method for implementing callbacks set on an |
| // SSL, as it allows the callback function to find the TlsHandshaker instance |
| // and call an instance method. |
| static TlsHandshaker* HandshakerFromSsl(const SSL* ssl); |
| |
| // Returns the PRF used by the cipher suite negotiated in the TLS handshake. |
| const EVP_MD* Prf(); |
| |
| // Computes the 1-RTT secrets client_pp_secret_0 and server_pp_secret_0 from |
| // which the packet protection keys are derived, as defined in |
| // draft-ietf-quic-tls section 5.2.2. |
| bool DeriveSecrets(std::vector<uint8_t>* client_secret_out, |
| std::vector<uint8_t>* server_secret_out); |
| |
| std::unique_ptr<QuicEncrypter> CreateEncrypter( |
| const std::vector<uint8_t>& pp_secret); |
| std::unique_ptr<QuicDecrypter> CreateDecrypter( |
| const std::vector<uint8_t>& pp_secret); |
| |
| SSL* ssl() { return ssl_.get(); } |
| QuicCryptoStream* stream() { return stream_; } |
| QuicSession* session() { return session_; } |
| |
| private: |
| QuicCryptoStream* stream_; |
| QuicSession* session_; |
| QuicTlsAdapter bio_adapter_; |
| bssl::UniquePtr<SSL> ssl_; |
| }; |
| |
| } // namespace quic |
| |
| #endif // NET_THIRD_PARTY_QUIC_CORE_TLS_HANDSHAKER_H_ |