| /** @file |
| |
| A brief file description |
| |
| @section license License |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include "tscore/ink_platform.h" |
| #include "P_Connection.h" |
| #include "P_NetAccept.h" |
| #include "quic/QUICTypes.h" |
| #include "quic/QUICConnectionTable.h" |
| #include "quic/QUICResetTokenTable.h" |
| |
| class QUICClosedConCollector; |
| class QUICNetVConnection; |
| class QUICPacket; |
| class QUICPacketHeaderProtector; |
| |
| class QUICPacketHandler |
| { |
| public: |
| QUICPacketHandler(QUICResetTokenTable &rtable); |
| ~QUICPacketHandler(); |
| |
| void send_packet(const QUICPacket &packet, QUICNetVConnection *vc, const QUICPacketHeaderProtector &pn_protector); |
| void send_packet(QUICNetVConnection *vc, Ptr<IOBufferBlock> udp_payload); |
| |
| void close_connection(QUICNetVConnection *conn); |
| |
| protected: |
| void _send_packet(const QUICPacket &packet, UDPConnection *udp_con, IpEndpoint &addr, uint32_t pmtu, |
| const QUICPacketHeaderProtector *ph_protector, int dcil); |
| void _send_packet(UDPConnection *udp_con, IpEndpoint &addr, Ptr<IOBufferBlock> udp_payload); |
| QUICConnection *_check_stateless_reset(const uint8_t *buf, size_t buf_len); |
| |
| // FIXME Remove this |
| // QUICPacketHandler could be a continuation, but NetAccept is a continuation too. |
| virtual Continuation *_get_continuation() = 0; |
| |
| Event *_collector_event = nullptr; |
| QUICClosedConCollector *_closed_con_collector = nullptr; |
| |
| virtual void _recv_packet(int event, UDPPacket *udpPacket) = 0; |
| |
| QUICResetTokenTable &_rtable; |
| }; |
| |
| /* |
| * @class QUICPacketHandlerIn |
| * @brief QUIC Packet Handler for incoming connections |
| */ |
| class QUICPacketHandlerIn : public NetAccept, public QUICPacketHandler |
| { |
| public: |
| QUICPacketHandlerIn(const NetProcessor::AcceptOptions &opt, QUICConnectionTable &ctable, QUICResetTokenTable &rtable); |
| ~QUICPacketHandlerIn(); |
| |
| // NetAccept |
| virtual NetProcessor *getNetProcessor() const override; |
| virtual NetAccept *clone() const override; |
| virtual int acceptEvent(int event, void *e) override; |
| void init_accept(EThread *t) override; |
| |
| protected: |
| // QUICPacketHandler |
| Continuation *_get_continuation() override; |
| |
| private: |
| void _recv_packet(int event, UDPPacket *udp_packet) override; |
| int _stateless_retry(const uint8_t *buf, uint64_t buf_len, UDPConnection *connection, IpEndpoint from, QUICConnectionId dcid, |
| QUICConnectionId scid, QUICConnectionId *original_cid); |
| bool _send_stateless_reset(QUICConnectionId dcid, uint32_t instance_id, UDPConnection *udp_con, IpEndpoint &addr, |
| size_t maximum_size); |
| void _send_invalid_token_error(const uint8_t *initial_packet, uint64_t initial_packet_len, UDPConnection *connection, |
| IpEndpoint from); |
| |
| QUICConnectionTable &_ctable; |
| }; |
| |
| /* |
| * @class QUICPacketHandlerOut |
| * @brief QUIC Packet Handler for outgoing connections |
| */ |
| class QUICPacketHandlerOut : public Continuation, public QUICPacketHandler |
| { |
| public: |
| QUICPacketHandlerOut(QUICResetTokenTable &rtable); |
| ~QUICPacketHandlerOut(){}; |
| |
| void init(QUICNetVConnection *vc); |
| int event_handler(int event, Event *data); |
| |
| protected: |
| // QUICPacketHandler |
| Continuation *_get_continuation() override; |
| |
| private: |
| void _recv_packet(int event, UDPPacket *udp_packet) override; |
| |
| QUICNetVConnection *_vc = nullptr; |
| }; |