| /* |
| * 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 <unordered_map> |
| |
| #include "hci/acl_manager/classic_acl_connection.h" |
| #include "hci/address.h" |
| #include "hci/class_of_device.h" |
| #include "l2cap/classic/dynamic_channel_manager.h" |
| #include "l2cap/classic/fixed_channel_manager.h" |
| #include "l2cap/classic/internal/dynamic_channel_service_manager_impl.h" |
| #include "l2cap/classic/internal/fixed_channel_service_manager_impl.h" |
| #include "l2cap/classic/internal/link.h" |
| #include "l2cap/classic/link_property_listener.h" |
| #include "l2cap/classic/link_security_interface.h" |
| #include "l2cap/internal/parameter_provider.h" |
| #include "l2cap/internal/scheduler.h" |
| #include "os/handler.h" |
| |
| namespace bluetooth { |
| namespace l2cap { |
| namespace classic { |
| namespace internal { |
| |
| class DumpsysHelper; |
| |
| class LinkManager : public hci::acl_manager::ConnectionCallbacks { |
| public: |
| LinkManager(os::Handler* l2cap_handler, hci::AclManager* acl_manager, |
| FixedChannelServiceManagerImpl* fixed_channel_service_manager, |
| DynamicChannelServiceManagerImpl* dynamic_channel_service_manager, |
| l2cap::internal::ParameterProvider* parameter_provider) |
| : l2cap_handler_(l2cap_handler), acl_manager_(acl_manager), |
| fixed_channel_service_manager_(fixed_channel_service_manager), |
| dynamic_channel_service_manager_(dynamic_channel_service_manager), parameter_provider_(parameter_provider) { |
| acl_manager_->RegisterCallbacks(this, l2cap_handler_); |
| } |
| |
| struct PendingFixedChannelConnection { |
| os::Handler* handler_; |
| FixedChannelManager::OnConnectionFailureCallback on_fail_callback_; |
| }; |
| |
| struct PendingLink { |
| std::vector<PendingFixedChannelConnection> pending_fixed_channel_connections_; |
| }; |
| |
| // ACL methods |
| |
| Link* GetLink(hci::Address device); |
| void OnConnectSuccess(std::unique_ptr<hci::acl_manager::ClassicAclConnection> acl_connection) override; |
| void OnConnectFail(hci::Address device, hci::ErrorCode reason) override; |
| |
| void HACK_OnEscoConnectRequest(hci::Address, hci::ClassOfDevice) override; |
| void HACK_OnScoConnectRequest(hci::Address, hci::ClassOfDevice) override; |
| |
| virtual void OnDisconnect(hci::Address device, hci::ErrorCode status); |
| void OnAuthenticationComplete(hci::ErrorCode hci_status, hci::Address device); |
| void OnEncryptionChange(hci::Address device, hci::EncryptionEnabled enabled); |
| void OnReadRemoteVersionInformation( |
| hci::ErrorCode hci_status, |
| hci::Address device, |
| uint8_t lmp_version, |
| uint16_t manufacturer_name, |
| uint16_t sub_version); |
| void OnReadRemoteSupportedFeatures(hci::Address device, uint64_t features); |
| void OnReadRemoteExtendedFeatures( |
| hci::Address device, uint8_t page_number, uint8_t max_page_number, uint64_t features); |
| void OnRoleChange(hci::ErrorCode hci_status, hci::Address remote, hci::Role role); |
| void OnReadClockOffset(hci::Address remote, uint16_t clock_offset); |
| void OnModeChange(hci::ErrorCode hci_status, hci::Address remote, hci::Mode mode, uint16_t interval); |
| void OnSniffSubrating( |
| hci::ErrorCode hci_status, |
| hci::Address remote, |
| uint16_t max_tx_lat, |
| uint16_t max_rx_lat, |
| uint16_t min_remote_timeout, |
| uint16_t min_local_timeout); |
| |
| // FixedChannelManager methods |
| |
| void ConnectFixedChannelServices(hci::Address device, PendingFixedChannelConnection pending_fixed_channel_connection); |
| |
| // DynamicChannelManager methods |
| |
| void ConnectDynamicChannelServices( |
| hci::Address device, Link::PendingDynamicChannelConnection pending_connection, Psm psm); |
| |
| // For SecurityModule to initiate an ACL link |
| void InitiateConnectionForSecurity(hci::Address remote); |
| |
| // LinkManager will handle sending OnLinkConnected() callback and construct a LinkSecurityInterface proxy. |
| void RegisterLinkSecurityInterfaceListener(os::Handler* handler, LinkSecurityInterfaceListener* listener); |
| |
| // For the link to get LinkSecurityInterfaceListener |
| LinkSecurityInterfaceListener* GetLinkSecurityInterfaceListener(); |
| |
| // Registerlink callbacks |
| void RegisterLinkPropertyListener(os::Handler* handler, LinkPropertyListener* listener); |
| |
| // Reported by link to indicate how many pending packets are remaining to be set. |
| // If there is anything outstanding, don't delete link |
| void OnPendingPacketChange(hci::Address remote, int num_packets); |
| |
| private: |
| // Handles requests from LinkSecurityInterface |
| friend class LinkSecurityInterfaceImpl; |
| friend class DumpsysHelper; |
| void handle_link_security_hold(hci::Address remote); |
| void handle_link_security_release(hci::Address remote); |
| void handle_link_security_disconnect(hci::Address remote); |
| void handle_link_security_ensure_authenticated(hci::Address remote); |
| void handle_link_security_ensure_encrypted(hci::Address remote); |
| |
| // Dependencies |
| os::Handler* l2cap_handler_; |
| hci::AclManager* acl_manager_; |
| FixedChannelServiceManagerImpl* fixed_channel_service_manager_; |
| DynamicChannelServiceManagerImpl* dynamic_channel_service_manager_; |
| l2cap::internal::ParameterProvider* parameter_provider_; |
| |
| // Internal states |
| std::unordered_map<hci::Address, PendingLink> pending_links_; |
| std::unordered_map<hci::Address, Link> links_; |
| std::unordered_map<hci::Address, std::list<Psm>> pending_dynamic_channels_; |
| std::unordered_map<hci::Address, std::list<Link::PendingDynamicChannelConnection>> |
| pending_dynamic_channels_callbacks_; |
| os::Handler* link_security_interface_listener_handler_ = nullptr; |
| LinkSecurityInterfaceListener* link_security_interface_listener_ = nullptr; |
| LinkPropertyListener* link_property_listener_ = nullptr; |
| os::Handler* link_property_callback_handler_ = nullptr; |
| std::unordered_set<hci::Address> disconnected_links_; |
| std::unordered_set<hci::Address> links_with_pending_packets_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LinkManager); |
| }; |
| |
| } // namespace internal |
| } // namespace classic |
| } // namespace l2cap |
| } // namespace bluetooth |