1 /* 2 * Copyright (C) 2016 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 #ifndef WIFICOND_CLIENT_INTERFACE_IMPL_H_ 18 #define WIFICOND_CLIENT_INTERFACE_IMPL_H_ 19 20 #include <string> 21 22 #include <android-base/macros.h> 23 #include <utils/StrongPointer.h> 24 #include <wifi_system/interface_tool.h> 25 26 #include "android/net/wifi/IClientInterface.h" 27 #include "wificond/net/mlme_event_handler.h" 28 #include "wificond/net/netlink_utils.h" 29 #include "wificond/scanning/offload/offload_service_utils.h" 30 #include "wificond/scanning/scanner_impl.h" 31 32 namespace android { 33 namespace wificond { 34 35 class ClientInterfaceBinder; 36 class ClientInterfaceImpl; 37 class ScanUtils; 38 39 class MlmeEventHandlerImpl : public MlmeEventHandler { 40 public: 41 MlmeEventHandlerImpl(ClientInterfaceImpl* client_interface); 42 ~MlmeEventHandlerImpl() override; 43 void OnConnect(std::unique_ptr<MlmeConnectEvent> event) override; 44 void OnRoam(std::unique_ptr<MlmeRoamEvent> event) override; 45 void OnAssociate(std::unique_ptr<MlmeAssociateEvent> event) override; 46 void OnDisconnect(std::unique_ptr<MlmeDisconnectEvent> event) override; 47 void OnDisassociate(std::unique_ptr<MlmeDisassociateEvent> event) override; 48 49 private: 50 ClientInterfaceImpl* client_interface_; 51 }; 52 53 // Holds the guts of how we control network interfaces capable of connecting to 54 // access points via wpa_supplicant. 55 // 56 // Because remote processes may hold on to the corresponding 57 // binder object past the lifetime of the local object, we are forced to 58 // keep this object separate from the binder representation of itself. 59 class ClientInterfaceImpl { 60 public: 61 ClientInterfaceImpl( 62 uint32_t wiphy_index, 63 const std::string& interface_name, 64 uint32_t interface_index, 65 const std::vector<uint8_t>& interface_mac_addr, 66 android::wifi_system::InterfaceTool* if_tool, 67 NetlinkUtils* netlink_utils, 68 ScanUtils* scan_utils); 69 virtual ~ClientInterfaceImpl(); 70 71 // Get a pointer to the binder representing this ClientInterfaceImpl. 72 android::sp<android::net::wifi::IClientInterface> GetBinder() const; 73 74 bool GetPacketCounters(std::vector<int32_t>* out_packet_counters); 75 bool SignalPoll(std::vector<int32_t>* out_signal_poll_results); 76 const std::vector<uint8_t>& GetMacAddress(); GetInterfaceName()77 const std::string& GetInterfaceName() const { return interface_name_; } GetScanner()78 const android::sp<ScannerImpl> GetScanner() { return scanner_; }; 79 bool SetMacAddress(const ::std::vector<uint8_t>& mac); 80 virtual bool IsAssociated() const; 81 void Dump(std::stringstream* ss) const; 82 83 private: 84 bool RefreshAssociateFreq(); 85 86 const uint32_t wiphy_index_; 87 const std::string interface_name_; 88 const uint32_t interface_index_; 89 const std::vector<uint8_t> interface_mac_addr_; 90 android::wifi_system::InterfaceTool* const if_tool_; 91 NetlinkUtils* const netlink_utils_; 92 ScanUtils* const scan_utils_; 93 const std::shared_ptr<OffloadServiceUtils> offload_service_utils_; 94 const std::unique_ptr<MlmeEventHandlerImpl> mlme_event_handler_; 95 const android::sp<ClientInterfaceBinder> binder_; 96 android::sp<ScannerImpl> scanner_; 97 98 // Cached information for this connection. 99 bool is_associated_; 100 std::vector<uint8_t> bssid_; 101 uint32_t associate_freq_; 102 103 // Capability information for this wiphy/interface. 104 BandInfo band_info_; 105 ScanCapabilities scan_capabilities_; 106 WiphyFeatures wiphy_features_; 107 108 DISALLOW_COPY_AND_ASSIGN(ClientInterfaceImpl); 109 friend class MlmeEventHandlerImpl; 110 }; 111 112 } // namespace wificond 113 } // namespace android 114 115 #endif // WIFICOND_CLIENT_INTERFACE_IMPL_H_ 116