| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed 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 <memory> |
| |
| #include "common/bidi_queue.h" |
| #include "common/callback.h" |
| #include "hci/address.h" |
| #include "hci/address_with_type.h" |
| #include "hci/hci_layer.h" |
| #include "hci/hci_packets.h" |
| #include "module.h" |
| #include "os/handler.h" |
| |
| namespace bluetooth { |
| namespace hci { |
| |
| class AclManager; |
| |
| class ConnectionManagementCallbacks { |
| public: |
| virtual ~ConnectionManagementCallbacks() = default; |
| // Invoked when controller sends Connection Packet Type Changed event with Success error code |
| virtual void OnConnectionPacketTypeChanged(uint16_t packet_type) = 0; |
| // Invoked when controller sends Authentication Complete event with Success error code |
| virtual void OnAuthenticationComplete() = 0; |
| // Invoked when controller sends Encryption Change event with Success error code |
| virtual void OnEncryptionChange(EncryptionEnabled enabled) = 0; |
| // Invoked when controller sends Change Connection Link Key Complete event with Success error code |
| virtual void OnChangeConnectionLinkKeyComplete() = 0; |
| // Invoked when controller sends Read Clock Offset Complete event with Success error code |
| virtual void OnReadClockOffsetComplete(uint16_t clock_offset) = 0; |
| // Invoked when controller sends Mode Change event with Success error code |
| virtual void OnModeChange(Mode current_mode, uint16_t interval) = 0; |
| // Invoked when controller sends QoS Setup Complete event with Success error code |
| virtual void OnQosSetupComplete(ServiceType service_type, uint32_t token_rate, uint32_t peak_bandwidth, |
| uint32_t latency, uint32_t delay_variation) = 0; |
| // Invoked when controller sends Flow Specification Complete event with Success error code |
| virtual void OnFlowSpecificationComplete(FlowDirection flow_direction, ServiceType service_type, uint32_t token_rate, |
| uint32_t token_bucket_size, uint32_t peak_bandwidth, |
| uint32_t access_latency) = 0; |
| // Invoked when controller sends Flush Occurred event |
| virtual void OnFlushOccurred() = 0; |
| // Invoked when controller sends Command Complete event for Role Discovery command with Success error code |
| virtual void OnRoleDiscoveryComplete(Role current_role) = 0; |
| // Invoked when controller sends Command Complete event for Read Link Policy Settings command with Success error code |
| virtual void OnReadLinkPolicySettingsComplete(uint16_t link_policy_settings) = 0; |
| // Invoked when controller sends Command Complete event for Read Automatic Flush Timeout command with Success error |
| // code |
| virtual void OnReadAutomaticFlushTimeoutComplete(uint16_t flush_timeout) = 0; |
| // Invoked when controller sends Command Complete event for Read Transmit Power Level command with Success error code |
| virtual void OnReadTransmitPowerLevelComplete(uint8_t transmit_power_level) = 0; |
| // Invoked when controller sends Command Complete event for Read Link Supervision Time out command with Success error |
| // code |
| virtual void OnReadLinkSupervisionTimeoutComplete(uint16_t link_supervision_timeout) = 0; |
| // Invoked when controller sends Command Complete event for Read Failed Contact Counter command with Success error |
| // code |
| virtual void OnReadFailedContactCounterComplete(uint16_t failed_contact_counter) = 0; |
| // Invoked when controller sends Command Complete event for Read Link Quality command with Success error code |
| virtual void OnReadLinkQualityComplete(uint8_t link_quality) = 0; |
| // Invoked when controller sends Command Complete event for Read AFH Channel Map command with Success error code |
| virtual void OnReadAfhChannelMapComplete(AfhMode afh_mode, std::array<uint8_t, 10> afh_channel_map) = 0; |
| // Invoked when controller sends Command Complete event for Read RSSI command with Success error code |
| virtual void OnReadRssiComplete(uint8_t rssi) = 0; |
| // Invoked when controller sends Command Complete event for Read Clock command with Success error code |
| virtual void OnReadClockComplete(uint32_t clock, uint16_t accuracy) = 0; |
| }; |
| |
| class AclConnection { |
| public: |
| AclConnection() |
| : manager_(nullptr), handle_(0), address_(Address::kEmpty), address_type_(AddressType::PUBLIC_DEVICE_ADDRESS){}; |
| virtual ~AclConnection() = default; |
| |
| virtual Address GetAddress() const { |
| return address_; |
| } |
| |
| virtual AddressType GetAddressType() const { |
| return address_type_; |
| } |
| |
| uint16_t GetHandle() const { |
| return handle_; |
| } |
| |
| /* This return role for LE devices only, for Classic, please see |RoleDiscovery| method. |
| * TODO: split AclConnection for LE and Classic |
| */ |
| Role GetRole() const { |
| return role_; |
| } |
| |
| using Queue = common::BidiQueue<PacketView<kLittleEndian>, BasePacketBuilder>; |
| using QueueUpEnd = common::BidiQueueEnd<BasePacketBuilder, PacketView<kLittleEndian>>; |
| using QueueDownEnd = common::BidiQueueEnd<PacketView<kLittleEndian>, BasePacketBuilder>; |
| virtual QueueUpEnd* GetAclQueueEnd() const; |
| virtual void RegisterCallbacks(ConnectionManagementCallbacks* callbacks, os::Handler* handler); |
| virtual void RegisterDisconnectCallback(common::OnceCallback<void(ErrorCode)> on_disconnect, os::Handler* handler); |
| virtual bool Disconnect(DisconnectReason reason); |
| virtual bool ChangeConnectionPacketType(uint16_t packet_type); |
| virtual bool AuthenticationRequested(); |
| virtual bool SetConnectionEncryption(Enable enable); |
| virtual bool ChangeConnectionLinkKey(); |
| virtual bool ReadClockOffset(); |
| virtual bool HoldMode(uint16_t max_interval, uint16_t min_interval); |
| virtual bool SniffMode(uint16_t max_interval, uint16_t min_interval, uint16_t attempt, uint16_t timeout); |
| virtual bool ExitSniffMode(); |
| virtual bool QosSetup(ServiceType service_type, uint32_t token_rate, uint32_t peak_bandwidth, uint32_t latency, |
| uint32_t delay_variation); |
| virtual bool RoleDiscovery(); |
| virtual bool ReadLinkPolicySettings(); |
| virtual bool WriteLinkPolicySettings(uint16_t link_policy_settings); |
| virtual bool FlowSpecification(FlowDirection flow_direction, ServiceType service_type, uint32_t token_rate, |
| uint32_t token_bucket_size, uint32_t peak_bandwidth, uint32_t access_latency); |
| virtual bool SniffSubrating(uint16_t maximum_latency, uint16_t minimum_remote_timeout, |
| uint16_t minimum_local_timeout); |
| virtual bool Flush(); |
| virtual bool ReadAutomaticFlushTimeout(); |
| virtual bool WriteAutomaticFlushTimeout(uint16_t flush_timeout); |
| virtual bool ReadTransmitPowerLevel(TransmitPowerLevelType type); |
| virtual bool ReadLinkSupervisionTimeout(); |
| virtual bool WriteLinkSupervisionTimeout(uint16_t link_supervision_timeout); |
| virtual bool ReadFailedContactCounter(); |
| virtual bool ResetFailedContactCounter(); |
| virtual bool ReadLinkQuality(); |
| virtual bool ReadAfhChannelMap(); |
| virtual bool ReadRssi(); |
| virtual bool ReadClock(WhichClock which_clock); |
| |
| // Ask AclManager to clean me up. Must invoke after on_disconnect is called |
| virtual void Finish(); |
| |
| // TODO: API to change link settings ... ? |
| |
| private: |
| friend AclManager; |
| AclConnection(const AclManager* manager, uint16_t handle, Address address) |
| : manager_(manager), handle_(handle), address_(address) {} |
| AclConnection(const AclManager* manager, uint16_t handle, Address address, AddressType address_type, Role role) |
| : manager_(manager), handle_(handle), address_(address), address_type_(address_type), role_(role) {} |
| const AclManager* manager_; |
| uint16_t handle_; |
| Address address_; |
| AddressType address_type_; |
| Role role_; |
| DISALLOW_COPY_AND_ASSIGN(AclConnection); |
| }; |
| |
| class ConnectionCallbacks { |
| public: |
| virtual ~ConnectionCallbacks() = default; |
| // Invoked when controller sends Connection Complete event with Success error code |
| virtual void OnConnectSuccess(std::unique_ptr<AclConnection> /* , initiated_by_local ? */) = 0; |
| // Invoked when controller sends Connection Complete event with non-Success error code |
| virtual void OnConnectFail(Address, ErrorCode reason) = 0; |
| }; |
| |
| class LeConnectionCallbacks { |
| public: |
| virtual ~LeConnectionCallbacks() = default; |
| // Invoked when controller sends Connection Complete event with Success error code |
| // AddressWithType is always equal to the object used in AclManager#CreateLeConnection |
| virtual void OnLeConnectSuccess(AddressWithType, std::unique_ptr<AclConnection> /* , initiated_by_local ? */) = 0; |
| // Invoked when controller sends Connection Complete event with non-Success error code |
| virtual void OnLeConnectFail(AddressWithType, ErrorCode reason) = 0; |
| }; |
| |
| class AclManagerCallbacks { |
| public: |
| virtual ~AclManagerCallbacks() = default; |
| // Invoked when controller sends Master Link Key Complete event with Success error code |
| virtual void OnMasterLinkKeyComplete(uint16_t connection_handle, KeyFlag key_flag) = 0; |
| // Invoked when controller sends Role Change event with Success error code |
| virtual void OnRoleChange(Address bd_addr, Role new_role) = 0; |
| // Invoked when controller sends Command Complete event for Read Default Link Policy Settings command with Success |
| // error code |
| virtual void OnReadDefaultLinkPolicySettingsComplete(uint16_t default_link_policy_settings) = 0; |
| }; |
| |
| class AclManager : public Module { |
| public: |
| AclManager(); |
| // NOTE: It is necessary to forward declare a default destructor that overrides the base class one, because |
| // "struct impl" is forwarded declared in .cc and compiler needs a concrete definition of "struct impl" when |
| // compiling AclManager's destructor. Hence we need to forward declare the destructor for AclManager to delay |
| // compiling AclManager's destructor until it starts linking the .cc file. |
| ~AclManager() override; |
| |
| // Should register only once when user module starts. |
| // Generates OnConnectSuccess when an incoming connection is established. |
| virtual void RegisterCallbacks(ConnectionCallbacks* callbacks, os::Handler* handler); |
| |
| // Should register only once when user module starts. |
| virtual void RegisterLeCallbacks(LeConnectionCallbacks* callbacks, os::Handler* handler); |
| |
| // Should register only once when user module starts. |
| virtual void RegisterAclManagerCallbacks(AclManagerCallbacks* callbacks, os::Handler* handler); |
| |
| // Generates OnConnectSuccess if connected, or OnConnectFail otherwise |
| virtual void CreateConnection(Address address); |
| |
| // Generates OnLeConnectSuccess if connected, or OnLeConnectFail otherwise |
| virtual void CreateLeConnection(AddressWithType address_with_type); |
| |
| // Generates OnConnectFail with error code "terminated by local host 0x16" if cancelled, or OnConnectSuccess if not |
| // successfully cancelled and already connected |
| virtual void CancelConnect(Address address); |
| |
| virtual void MasterLinkKey(KeyFlag key_flag); |
| virtual void SwitchRole(Address address, Role role); |
| virtual void ReadDefaultLinkPolicySettings(); |
| virtual void WriteDefaultLinkPolicySettings(uint16_t default_link_policy_settings); |
| |
| static const ModuleFactory Factory; |
| |
| protected: |
| void ListDependencies(ModuleList* list) override; |
| |
| void Start() override; |
| |
| void Stop() override; |
| |
| std::string ToString() const override; |
| |
| private: |
| friend AclConnection; |
| |
| struct impl; |
| std::unique_ptr<impl> pimpl_; |
| |
| struct acl_connection; |
| DISALLOW_COPY_AND_ASSIGN(AclManager); |
| }; |
| |
| } // namespace hci |
| } // namespace bluetooth |