Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #pragma once |
| 18 | |
| 19 | #include <cstdint> |
| 20 | #include <queue> |
Hansong Zhang | c83e120 | 2019-10-16 13:31:52 -0700 | [diff] [blame] | 21 | #include <vector> |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 22 | |
| 23 | #include "l2cap/cid.h" |
Hansong Zhang | f0a1692 | 2019-11-22 21:27:08 -0800 | [diff] [blame] | 24 | #include "l2cap/classic/internal/channel_configuration_state.h" |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 25 | #include "l2cap/classic/internal/dynamic_channel_service_manager_impl.h" |
| 26 | #include "l2cap/classic/internal/fixed_channel_impl.h" |
| 27 | #include "l2cap/classic/internal/fixed_channel_service_manager_impl.h" |
Hansong Zhang | f0a1692 | 2019-11-22 21:27:08 -0800 | [diff] [blame] | 28 | #include "l2cap/internal/data_pipeline_manager.h" |
Hansong Zhang | 47dec64 | 2019-11-25 12:01:15 -0800 | [diff] [blame^] | 29 | #include "l2cap/internal/dynamic_channel_allocator.h" |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 30 | #include "l2cap/l2cap_packets.h" |
| 31 | #include "l2cap/psm.h" |
| 32 | #include "l2cap/signal_id.h" |
| 33 | #include "os/alarm.h" |
| 34 | #include "os/handler.h" |
| 35 | #include "os/queue.h" |
| 36 | #include "packet/raw_builder.h" |
| 37 | |
| 38 | namespace bluetooth { |
| 39 | namespace l2cap { |
| 40 | namespace classic { |
| 41 | namespace internal { |
| 42 | |
| 43 | struct PendingCommand { |
| 44 | SignalId signal_id_; |
| 45 | CommandCode command_code_; |
| 46 | Psm psm_; |
| 47 | Cid source_cid_; |
| 48 | Cid destination_cid_; |
| 49 | InformationRequestInfoType info_type_; |
Hansong Zhang | c83e120 | 2019-10-16 13:31:52 -0700 | [diff] [blame] | 50 | std::vector<std::unique_ptr<ConfigurationOption>> config_; |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 51 | }; |
| 52 | |
| 53 | class Link; |
| 54 | |
| 55 | class ClassicSignallingManager { |
| 56 | public: |
| 57 | ClassicSignallingManager(os::Handler* handler, Link* link, |
Hansong Zhang | f0a1692 | 2019-11-22 21:27:08 -0800 | [diff] [blame] | 58 | l2cap::internal::DataPipelineManager* data_pipeline_manager, |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 59 | classic::internal::DynamicChannelServiceManagerImpl* dynamic_service_manager, |
Hansong Zhang | 47dec64 | 2019-11-25 12:01:15 -0800 | [diff] [blame^] | 60 | l2cap::internal::DynamicChannelAllocator* channel_allocator, |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 61 | classic::internal::FixedChannelServiceManagerImpl* fixed_service_manager); |
| 62 | |
| 63 | virtual ~ClassicSignallingManager(); |
| 64 | |
| 65 | void OnCommandReject(CommandRejectView command_reject_view); |
| 66 | |
| 67 | void SendConnectionRequest(Psm psm, Cid local_cid); |
| 68 | |
Hansong Zhang | c83e120 | 2019-10-16 13:31:52 -0700 | [diff] [blame] | 69 | void SendConfigurationRequest(Cid remote_cid, std::vector<std::unique_ptr<ConfigurationOption>> config); |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 70 | |
| 71 | void SendDisconnectionRequest(Cid local_cid, Cid remote_cid); |
| 72 | |
| 73 | void SendInformationRequest(InformationRequestInfoType type); |
| 74 | |
| 75 | void SendEchoRequest(std::unique_ptr<packet::RawBuilder> payload); |
| 76 | |
| 77 | void OnConnectionRequest(SignalId signal_id, Psm psm, Cid remote_cid); |
| 78 | |
Chris Manton | 976f62c | 2019-10-31 16:19:14 -0700 | [diff] [blame] | 79 | void OnConnectionResponse(SignalId signal_id, Cid remote_cid, Cid cid, ConnectionResponseResult result, |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 80 | ConnectionResponseStatus status); |
| 81 | |
| 82 | void OnDisconnectionRequest(SignalId signal_id, Cid cid, Cid remote_cid); |
| 83 | |
| 84 | void OnDisconnectionResponse(SignalId signal_id, Cid cid, Cid remote_cid); |
| 85 | |
| 86 | void OnConfigurationRequest(SignalId signal_id, Cid cid, Continuation is_continuation, |
| 87 | std::vector<std::unique_ptr<ConfigurationOption>>); |
| 88 | |
| 89 | void OnConfigurationResponse(SignalId signal_id, Cid cid, Continuation is_continuation, |
| 90 | ConfigurationResponseResult result, std::vector<std::unique_ptr<ConfigurationOption>>); |
| 91 | |
| 92 | void OnEchoRequest(SignalId signal_id, const PacketView<kLittleEndian>& packet); |
| 93 | |
| 94 | void OnEchoResponse(SignalId signal_id, const PacketView<kLittleEndian>& packet); |
| 95 | |
| 96 | void OnInformationRequest(SignalId signal_id, InformationRequestInfoType type); |
| 97 | |
Hansong Zhang | 70fb464 | 2019-11-20 17:33:06 -0800 | [diff] [blame] | 98 | void OnInformationResponse(SignalId signal_id, const InformationResponseView& response); |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 99 | |
| 100 | private: |
| 101 | void on_incoming_packet(); |
| 102 | void send_connection_response(SignalId signal_id, Cid remote_cid, Cid local_cid, ConnectionResponseResult result, |
| 103 | ConnectionResponseStatus status); |
| 104 | void on_command_timeout(); |
| 105 | void handle_send_next_command(); |
| 106 | |
| 107 | os::Handler* handler_; |
| 108 | Link* link_; |
Hansong Zhang | f0a1692 | 2019-11-22 21:27:08 -0800 | [diff] [blame] | 109 | [[maybe_unused]] l2cap::internal::DataPipelineManager* data_pipeline_manager_; |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 110 | std::shared_ptr<classic::internal::FixedChannelImpl> signalling_channel_; |
| 111 | DynamicChannelServiceManagerImpl* dynamic_service_manager_; |
Hansong Zhang | 47dec64 | 2019-11-25 12:01:15 -0800 | [diff] [blame^] | 112 | l2cap::internal::DynamicChannelAllocator* channel_allocator_; |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 113 | FixedChannelServiceManagerImpl* fixed_service_manager_; |
| 114 | std::unique_ptr<os::EnqueueBuffer<packet::BasePacketBuilder>> enqueue_buffer_; |
Hansong Zhang | ad57a6e | 2019-10-24 17:23:18 -0700 | [diff] [blame] | 115 | PendingCommand last_sent_command_; |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 116 | std::queue<PendingCommand> pending_commands_; |
| 117 | os::Alarm alarm_; |
Chris Manton | 7bad4d2 | 2019-10-30 11:14:09 -0700 | [diff] [blame] | 118 | SignalId next_signal_id_ = kInitialSignalId; |
Hansong Zhang | f0a1692 | 2019-11-22 21:27:08 -0800 | [diff] [blame] | 119 | std::unordered_map<Cid, ChannelConfigurationState> channel_configuration_; |
Hansong Zhang | cd0c319 | 2019-09-20 15:50:42 -0700 | [diff] [blame] | 120 | }; |
| 121 | |
| 122 | } // namespace internal |
| 123 | } // namespace classic |
| 124 | } // namespace l2cap |
| 125 | } // namespace bluetooth |