| // Copyright (c) 2022 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. |
| |
| // A Connection ID generator that generates deterministic connection IDs for |
| // QUIC servers. |
| |
| #ifndef QUICHE_QUIC_CORE_CONNECTION_ID_GENERATOR_DETERMINISTIC_H_ |
| #define QUICHE_QUIC_CORE_CONNECTION_ID_GENERATOR_DETERMINISTIC_H_ |
| |
| #include "quiche/quic/core/connection_id_generator.h" |
| |
| namespace quic { |
| |
| // Generates connection IDs deterministically from the provided original |
| // connection ID. |
| class QUIC_EXPORT_PRIVATE DeterministicConnectionIdGenerator |
| : public ConnectionIdGeneratorInterface { |
| public: |
| DeterministicConnectionIdGenerator(uint8_t expected_connection_id_length); |
| |
| // Hashes |original| to create a new connection ID. |
| absl::optional<QuicConnectionId> GenerateNextConnectionId( |
| const QuicConnectionId& original) override; |
| // Replace the connection ID if and only if |original| is not of the expected |
| // length. |
| absl::optional<QuicConnectionId> MaybeReplaceConnectionId( |
| const QuicConnectionId& original, |
| const ParsedQuicVersion& version) override; |
| |
| private: |
| const uint8_t expected_connection_id_length_; |
| }; |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE__CONNECTION_ID_GENERATOR_DETERMINISTIC_H_ |