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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef NET_QUIC_QUIC_FRAMER_H_ | 5 #ifndef NET_QUIC_QUIC_FRAMER_H_ |
| 6 #define NET_QUIC_QUIC_FRAMER_H_ | 6 #define NET_QUIC_QUIC_FRAMER_H_ |
| 7 | 7 |
| 8 #include <vector> | 8 #include <vector> |
| 9 | 9 |
| 10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
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| 122 // Pass a data packet that was revived from FEC data into the framer | 122 // Pass a data packet that was revived from FEC data into the framer |
| 123 // for parsing. | 123 // for parsing. |
| 124 // Return true if the packet was processed succesfully. |payload| must be | 124 // Return true if the packet was processed succesfully. |payload| must be |
| 125 // the complete DECRYPTED payload of the revived packet. | 125 // the complete DECRYPTED payload of the revived packet. |
| 126 bool ProcessRevivedPacket(const QuicPacketHeader& header, | 126 bool ProcessRevivedPacket(const QuicPacketHeader& header, |
| 127 base::StringPiece payload); | 127 base::StringPiece payload); |
| 128 | 128 |
| 129 // Creates a new QuicPacket populated with the fields in |header| and | 129 // Creates a new QuicPacket populated with the fields in |header| and |
| 130 // |frames|. Assigns |*packet| to the address of the new object. | 130 // |frames|. Assigns |*packet| to the address of the new object. |
| 131 // Returns true upon success. | 131 // Returns true upon success. |
| 132 bool ConstructFragementDataPacket(const QuicPacketHeader& header, | 132 bool ConstructFrameDataPacket(const QuicPacketHeader& header, |
| 133 const QuicFrames& frames, | 133 const QuicFrames& frames, |
| 134 QuicPacket** packet); | 134 QuicPacket** packet); |
| 135 | 135 |
| 136 // Creates a new QuicPacket populated with the fields in |header| and | 136 // Creates a new QuicPacket populated with the fields in |header| and |
| 137 // |fec|. Assigns |*packet| to the address of the new object. | 137 // |fec|. Assigns |*packet| to the address of the new object. |
| 138 // Returns true upon success. | 138 // Returns true upon success. |
| 139 bool ConstructFecPacket(const QuicPacketHeader& header, | 139 bool ConstructFecPacket(const QuicPacketHeader& header, |
| 140 const QuicFecData& fec, | 140 const QuicFecData& fec, |
| 141 QuicPacket** packet); | 141 QuicPacket** packet); |
| 142 | 142 |
| 143 // Increments the retransmission count by one, and updates the authentication | 143 void WriteTransmissionTime(QuicTransmissionTime time, QuicPacket* packet); |
| 144 // hash accordingly. | |
| 145 void IncrementRetransmitCount(QuicPacket* packet); | |
| 146 | 144 |
| 147 uint8 GetRetransmitCount(QuicPacket* packet); | 145 void WriteSequenceNumber(QuicPacketSequenceNumber sequence_number, |
| 146 QuicPacket* packet); |
| 148 | 147 |
| 149 void WriteTransmissionTime(QuicTransmissionTime time, QuicPacket* packet); | 148 void WriteFecGroup(QuicFecGroupNumber fec_group, QuicPacket* packet); |
| 150 | 149 |
| 151 // Returns a new encrypted packet, owned by the caller. | 150 // Returns a new encrypted packet, owned by the caller. |
| 152 QuicEncryptedPacket* EncryptPacket(const QuicPacket& packet); | 151 QuicEncryptedPacket* EncryptPacket(const QuicPacket& packet); |
| 153 | 152 |
| 154 // Returns the maximum length of plaintext that can be encrypted | 153 // Returns the maximum length of plaintext that can be encrypted |
| 155 // to ciphertext no larger than |ciphertext_size|. | 154 // to ciphertext no larger than |ciphertext_size|. |
| 156 size_t GetMaxPlaintextSize(size_t ciphertext_size); | 155 size_t GetMaxPlaintextSize(size_t ciphertext_size); |
| 157 | 156 |
| 158 const std::string& detailed_error() { return detailed_error_; } | 157 const std::string& detailed_error() { return detailed_error_; } |
| 159 | 158 |
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| 206 scoped_ptr<QuicDecrypter> decrypter_; | 205 scoped_ptr<QuicDecrypter> decrypter_; |
| 207 // Encrypter used to encrypt packets via EncryptPacket(). | 206 // Encrypter used to encrypt packets via EncryptPacket(). |
| 208 scoped_ptr<QuicEncrypter> encrypter_; | 207 scoped_ptr<QuicEncrypter> encrypter_; |
| 209 | 208 |
| 210 DISALLOW_COPY_AND_ASSIGN(QuicFramer); | 209 DISALLOW_COPY_AND_ASSIGN(QuicFramer); |
| 211 }; | 210 }; |
| 212 | 211 |
| 213 } // namespace net | 212 } // namespace net |
| 214 | 213 |
| 215 #endif // NET_QUIC_QUIC_FRAMER_H_ | 214 #endif // NET_QUIC_QUIC_FRAMER_H_ |
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