1 /* 2 * Copyright 2020 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 <future> 20 #include <memory> 21 22 #include "hci/acl_manager/connection_callbacks.h" 23 #include "hci/acl_manager/le_connection_callbacks.h" 24 #include "hci/address.h" 25 #include "hci/address_with_type.h" 26 #include "hci/class_of_device.h" 27 #include "main/shim/acl_interface.h" 28 #include "main/shim/link_connection_interface.h" 29 #include "os/handler.h" 30 #include "packet/raw_builder.h" 31 #include "types/raw_address.h" 32 33 namespace bluetooth { 34 namespace shim { 35 36 class Acl : public hci::acl_manager::ConnectionCallbacks, 37 public hci::acl_manager::LeConnectionCallbacks, 38 public LinkConnectionInterface { 39 public: 40 Acl(os::Handler* handler, const acl_interface_t& acl_interface, uint8_t max_acceptlist_size, 41 uint8_t max_address_resolution_size); 42 43 Acl(const Acl&) = delete; 44 Acl& operator=(const Acl&) = delete; 45 46 ~Acl(); 47 48 // hci::acl_manager::ConnectionCallbacks 49 void OnConnectSuccess(std::unique_ptr<hci::acl_manager::ClassicAclConnection>) override; 50 void OnConnectRequest(hci::Address, hci::ClassOfDevice) override; 51 void OnConnectFail(hci::Address, hci::ErrorCode reason, bool locally_initiated) override; 52 53 void OnClassicLinkDisconnected(uint16_t handle, hci::ErrorCode reason); 54 55 // hci::acl_manager::LeConnectionCallbacks 56 void OnLeConnectSuccess(hci::AddressWithType, 57 std::unique_ptr<hci::acl_manager::LeAclConnection>) override; 58 void OnLeConnectFail(hci::AddressWithType, hci::ErrorCode reason) override; 59 void OnLeLinkDisconnected(uint16_t handle, hci::ErrorCode reason); 60 void GetConnectionLocalAddress(uint16_t handle, bool ota_address, 61 std::promise<bluetooth::hci::AddressWithType> promise); 62 void GetConnectionPeerAddress(uint16_t handle, bool ota_address, 63 std::promise<bluetooth::hci::AddressWithType> promise); 64 void GetAdvertisingSetConnectedTo(const RawAddress& remote_bda, 65 std::promise<std::optional<uint8_t>> promise); 66 67 // LinkConnectionInterface 68 void CreateClassicConnection(const hci::Address& address) override; 69 void CancelClassicConnection(const hci::Address& address) override; 70 void AcceptLeConnectionFrom(const hci::AddressWithType& address_with_type, bool is_direct, 71 std::promise<bool> promise) override; 72 void IgnoreLeConnectionFrom(const hci::AddressWithType& address_with_type) override; 73 void DisconnectClassic(uint16_t handle, tHCI_REASON reason, std::string comment) override; 74 void DisconnectLe(uint16_t handle, tHCI_REASON reason, std::string comment) override; 75 void UpdateConnectionParameters(uint16_t handle, uint16_t conn_int_min, uint16_t conn_int_max, 76 uint16_t conn_latency, uint16_t conn_timeout, uint16_t min_ce_len, 77 uint16_t max_ce_len) override; 78 79 // Address Resolution List 80 void AddToAddressResolution(const hci::AddressWithType& address_with_type, 81 const std::array<uint8_t, 16>& peer_irk, 82 const std::array<uint8_t, 16>& local_irk); 83 void RemoveFromAddressResolution(const hci::AddressWithType& address_with_type); 84 void ClearAddressResolution(); 85 86 void LeSetDefaultSubrate(uint16_t subrate_min, uint16_t subrate_max, uint16_t max_latency, 87 uint16_t cont_num, uint16_t sup_tout); 88 void LeSubrateRequest(uint16_t hci_handle, uint16_t subrate_min, uint16_t subrate_max, 89 uint16_t max_latency, uint16_t cont_num, uint16_t sup_tout); 90 91 void WriteData(uint16_t hci_handle, std::unique_ptr<packet::RawBuilder> packet); 92 93 void Flush(uint16_t hci_handle); 94 95 void Dump(int fd) const; 96 void DumpConnectionHistory(int fd) const; 97 98 void Shutdown(); 99 void FinalShutdown(); 100 101 void ClearFilterAcceptList(); 102 void DisconnectAllForSuspend(); 103 void SetSystemSuspendState(bool suspended); 104 105 protected: 106 void on_incoming_acl_credits(uint16_t handle, uint16_t credits); 107 void write_data_sync(uint16_t hci_handle, std::unique_ptr<packet::RawBuilder> packet); 108 void flush(uint16_t hci_handle); 109 110 private: 111 os::Handler* handler_; 112 const acl_interface_t acl_interface_; 113 114 bool CheckForOrphanedAclConnections() const; 115 116 struct impl; 117 std::unique_ptr<impl> pimpl_; 118 }; 119 120 } // namespace shim 121 } // namespace bluetooth 122