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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 <string> |
8 #include <vector> | 9 #include <vector> |
9 | 10 |
10 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
11 #include "base/logging.h" | 12 #include "base/logging.h" |
12 #include "base/memory/scoped_ptr.h" | 13 #include "base/memory/scoped_ptr.h" |
13 #include "base/strings/string_piece.h" | 14 #include "base/strings/string_piece.h" |
14 #include "net/base/net_export.h" | 15 #include "net/base/net_export.h" |
15 #include "net/quic/quic_protocol.h" | 16 #include "net/quic/quic_protocol.h" |
16 | 17 |
17 namespace net { | 18 namespace net { |
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339 void SetAlternativeDecrypter(QuicDecrypter* decrypter, | 340 void SetAlternativeDecrypter(QuicDecrypter* decrypter, |
340 EncryptionLevel level, | 341 EncryptionLevel level, |
341 bool latch_once_used); | 342 bool latch_once_used); |
342 | 343 |
343 const QuicDecrypter* decrypter() const; | 344 const QuicDecrypter* decrypter() const; |
344 const QuicDecrypter* alternative_decrypter() const; | 345 const QuicDecrypter* alternative_decrypter() const; |
345 | 346 |
346 // Changes the encrypter used for level |level| to |encrypter|. The function | 347 // Changes the encrypter used for level |level| to |encrypter|. The function |
347 // takes ownership of |encrypter|. | 348 // takes ownership of |encrypter|. |
348 void SetEncrypter(EncryptionLevel level, QuicEncrypter* encrypter); | 349 void SetEncrypter(EncryptionLevel level, QuicEncrypter* encrypter); |
349 const QuicEncrypter* encrypter(EncryptionLevel level) const; | |
350 | 350 |
351 // Returns a new encrypted packet, owned by the caller. | 351 // Returns a new encrypted packet, owned by the caller. |
352 QuicEncryptedPacket* EncryptPacket(EncryptionLevel level, | 352 QuicEncryptedPacket* EncryptPacket(EncryptionLevel level, |
353 QuicPacketSequenceNumber sequence_number, | 353 QuicPacketSequenceNumber sequence_number, |
354 const QuicPacket& packet); | 354 const QuicPacket& packet); |
355 | 355 |
356 // Returns the maximum length of plaintext that can be encrypted | 356 // Returns the maximum length of plaintext that can be encrypted |
357 // to ciphertext no larger than |ciphertext_size|. | 357 // to ciphertext no larger than |ciphertext_size|. |
358 size_t GetMaxPlaintextSize(size_t ciphertext_size); | 358 size_t GetMaxPlaintextSize(size_t ciphertext_size); |
359 | 359 |
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453 QuicPacketSequenceNumber packet_sequence_number, | 453 QuicPacketSequenceNumber packet_sequence_number, |
454 QuicDataWriter* writer); | 454 QuicDataWriter* writer); |
455 | 455 |
456 static uint8 GetSequenceNumberFlags( | 456 static uint8 GetSequenceNumberFlags( |
457 QuicSequenceNumberLength sequence_number_length); | 457 QuicSequenceNumberLength sequence_number_length); |
458 | 458 |
459 static AckFrameInfo GetAckFrameInfo(const QuicAckFrame& frame); | 459 static AckFrameInfo GetAckFrameInfo(const QuicAckFrame& frame); |
460 | 460 |
461 // The Append* methods attempt to write the provided header or frame using the | 461 // The Append* methods attempt to write the provided header or frame using the |
462 // |writer|, and return true if successful. | 462 // |writer|, and return true if successful. |
| 463 |
| 464 // If header.public_header.version_flag is set, the version in the |
| 465 // packet will be set -- but it will be set from quic_version_ not |
| 466 // header.public_header.versions. |
463 bool AppendPacketHeader(const QuicPacketHeader& header, | 467 bool AppendPacketHeader(const QuicPacketHeader& header, |
464 QuicDataWriter* writer); | 468 QuicDataWriter* writer); |
465 bool AppendTypeByte(const QuicFrame& frame, | 469 bool AppendTypeByte(const QuicFrame& frame, |
466 bool last_frame_in_packet, | 470 bool last_frame_in_packet, |
467 QuicDataWriter* writer); | 471 QuicDataWriter* writer); |
468 bool AppendStreamFrame(const QuicStreamFrame& frame, | 472 bool AppendStreamFrame(const QuicStreamFrame& frame, |
469 bool last_frame_in_packet, | 473 bool last_frame_in_packet, |
470 QuicDataWriter* builder); | 474 QuicDataWriter* builder); |
471 bool AppendAckFrameAndTypeByte(const QuicPacketHeader& header, | 475 bool AppendAckFrameAndTypeByte(const QuicPacketHeader& header, |
472 const QuicAckFrame& frame, | 476 const QuicAckFrame& frame, |
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538 // The time delta computed for the last timestamp frame. This is relative to | 542 // The time delta computed for the last timestamp frame. This is relative to |
539 // the creation_time. | 543 // the creation_time. |
540 QuicTime::Delta last_timestamp_; | 544 QuicTime::Delta last_timestamp_; |
541 | 545 |
542 DISALLOW_COPY_AND_ASSIGN(QuicFramer); | 546 DISALLOW_COPY_AND_ASSIGN(QuicFramer); |
543 }; | 547 }; |
544 | 548 |
545 } // namespace net | 549 } // namespace net |
546 | 550 |
547 #endif // NET_QUIC_QUIC_FRAMER_H_ | 551 #endif // NET_QUIC_QUIC_FRAMER_H_ |
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