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142 lines
4.2 KiB
142 lines
4.2 KiB
/*
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*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0;
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#pragma once
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#include <memory>
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#include <unordered_map>
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#include <vector>
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#include "common/contextual_callback.h"
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#include "hci/address_with_type.h"
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#include "hci/hci_layer.h"
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#include "hci/hci_packets.h"
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#include "hci/security_interface.h"
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#include "l2cap/classic/l2cap_classic_module.h"
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#include "l2cap/classic/link_security_interface.h"
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namespace bluetooth {
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namespace security {
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namespace channel {
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using SecurityCommandStatusCallback = common::ContextualOnceCallback<void(hci::CommandCompleteView)>;
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/**
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* Interface for listening to the channel for SMP commands.
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*/
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class ISecurityManagerChannelListener {
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public:
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virtual ~ISecurityManagerChannelListener() = default;
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virtual void OnHciEventReceived(hci::EventView packet) = 0;
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virtual void OnConnectionClosed(hci::Address) = 0;
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};
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/**
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* Channel for consolidating traffic and making the transport agnostic.
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*/
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class SecurityManagerChannel : public l2cap::classic::LinkSecurityInterfaceListener {
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public:
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SecurityManagerChannel(os::Handler* handler, hci::HciLayer* hci_layer);
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virtual ~SecurityManagerChannel();
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/**
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* Creates a connection to the device which triggers pairing
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*
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* @param address remote address of device to pair with
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*/
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void Connect(hci::Address address);
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/**
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* Releases link hold so it can disconnect as normally
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*
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* i.e. signals we no longer need this if acl manager wants to clean it up
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*
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* @param address remote address to disconnect
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*/
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void Release(hci::Address address);
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/**
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* Immediately disconnects currently connected channel
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*
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* i.e. force disconnect
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*
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* @param address remote address to disconnect
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*/
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void Disconnect(hci::Address address);
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/**
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* Send a given SMP command over the SecurityManagerChannel
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*
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* @param command smp command to send
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*/
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void SendCommand(std::unique_ptr<hci::SecurityCommandBuilder> command);
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/**
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* Send a given SMP command over the SecurityManagerChannel
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*
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* @param command smp command to send
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* @param callback listener to call when command status complete
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*/
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void SendCommand(std::unique_ptr<hci::SecurityCommandBuilder> command, SecurityCommandStatusCallback callback);
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/**
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* Sets the listener to listen for channel events
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*
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* @param listener the caller interested in events
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*/
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void SetChannelListener(ISecurityManagerChannelListener* listener) {
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listener_ = listener;
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}
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void SetSecurityInterface(l2cap::classic::SecurityInterface* security_interface) {
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l2cap_security_interface_ = security_interface;
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}
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/**
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* Called when an incoming HCI event happens
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*
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* @param event_packet
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*/
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void OnHciEventReceived(hci::EventView packet);
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/**
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* Called when an HCI command is completed
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*
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* @param on_complete
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*/
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void OnCommandComplete(hci::CommandCompleteView packet);
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// Interface overrides
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void OnLinkConnected(std::unique_ptr<l2cap::classic::LinkSecurityInterface> link) override;
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void OnLinkDisconnected(hci::Address address) override;
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void OnAuthenticationComplete(hci::ErrorCode hci_status, hci::Address remote) override;
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void OnEncryptionChange(hci::Address, bool encrypted) override;
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private:
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ISecurityManagerChannelListener* listener_{nullptr};
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hci::SecurityInterface* hci_security_interface_{nullptr};
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os::Handler* handler_{nullptr};
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l2cap::classic::SecurityInterface* l2cap_security_interface_{nullptr};
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std::unordered_map<hci::Address, std::unique_ptr<l2cap::classic::LinkSecurityInterface>> link_map_;
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std::set<hci::Address> outgoing_pairing_remote_devices_;
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};
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} // namespace channel
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} // namespace security
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} // namespace bluetooth
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