1 /* 2 * 3 * Copyright 2019 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0; 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 #pragma once 19 20 #include <memory> 21 #include <vector> 22 23 #include "hci/address_with_type.h" 24 #include "hci/hci_layer.h" 25 #include "hci/hci_packets.h" 26 #include "hci/security_interface.h" 27 28 namespace bluetooth { 29 namespace security { 30 namespace channel { 31 32 /** 33 * Interface for listening to the channel for SMP commands. 34 */ 35 class ISecurityManagerChannelListener { 36 public: 37 virtual ~ISecurityManagerChannelListener() = default; 38 virtual void OnHciEventReceived(hci::EventPacketView packet) = 0; 39 }; 40 41 /** 42 * Channel for consolidating traffic and making the transport agnostic. 43 */ 44 class SecurityManagerChannel { 45 public: SecurityManagerChannel(os::Handler * handler,hci::HciLayer * hci_layer)46 explicit SecurityManagerChannel(os::Handler* handler, hci::HciLayer* hci_layer) 47 : listener_(nullptr), 48 hci_security_interface_(hci_layer->GetSecurityInterface( 49 common::Bind(&SecurityManagerChannel::OnHciEventReceived, common::Unretained(this)), handler)), 50 handler_(handler) {} 51 52 /** 53 * Send a given SMP command over the SecurityManagerChannel 54 * 55 * @param command smp command to send 56 */ 57 void SendCommand(std::unique_ptr<hci::SecurityCommandBuilder> command); 58 59 /** 60 * Sets the listener to listen for channel events 61 * 62 * @param listener the caller interested in events 63 */ SetChannelListener(ISecurityManagerChannelListener * listener)64 void SetChannelListener(ISecurityManagerChannelListener* listener) { 65 listener_ = listener; 66 } 67 68 /** 69 * Called when an incoming HCI event happens 70 * 71 * @param event_packet 72 */ 73 void OnHciEventReceived(hci::EventPacketView packet); 74 75 /** 76 * Called when an HCI command is completed 77 * 78 * @param on_complete 79 */ 80 void OnCommandComplete(hci::CommandCompleteView packet); 81 82 private: 83 ISecurityManagerChannelListener* listener_; 84 hci::SecurityInterface* hci_security_interface_; 85 os::Handler* handler_; 86 }; 87 88 } // namespace channel 89 } // namespace security 90 } // namespace bluetooth 91