| // Copyright (c) 2018 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_FRAMES_QUIC_CRYPTO_FRAME_H_ |
| #define QUICHE_QUIC_CORE_FRAMES_QUIC_CRYPTO_FRAME_H_ |
| |
| #include <memory> |
| #include <ostream> |
| |
| #include "absl/strings/string_view.h" |
| #include "quic/core/quic_buffer_allocator.h" |
| #include "quic/core/quic_types.h" |
| #include "quic/platform/api/quic_export.h" |
| |
| namespace quic { |
| |
| struct QUIC_EXPORT_PRIVATE QuicCryptoFrame { |
| QuicCryptoFrame() = default; |
| QuicCryptoFrame(EncryptionLevel level, |
| QuicStreamOffset offset, |
| QuicPacketLength data_length); |
| QuicCryptoFrame(EncryptionLevel level, |
| QuicStreamOffset offset, |
| absl::string_view data); |
| ~QuicCryptoFrame(); |
| |
| friend QUIC_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os, |
| const QuicCryptoFrame& s); |
| |
| // When writing a crypto frame to a packet, the packet must be encrypted at |
| // |level|. When a crypto frame is read, the encryption level of the packet it |
| // was received in is put in |level|. |
| EncryptionLevel level = ENCRYPTION_INITIAL; |
| QuicPacketLength data_length = 0; |
| // When reading, |data_buffer| points to the data that was received in the |
| // frame. |data_buffer| is not used when writing. |
| const char* data_buffer = nullptr; |
| QuicStreamOffset offset = 0; // Location of this data in the stream. |
| |
| QuicCryptoFrame(EncryptionLevel level, |
| QuicStreamOffset offset, |
| const char* data_buffer, |
| QuicPacketLength data_length); |
| }; |
| static_assert(sizeof(QuicCryptoFrame) <= 64, |
| "Keep the QuicCryptoFrame size to a cacheline."); |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE_FRAMES_QUIC_CRYPTO_FRAME_H_ |