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 #include <wifi_system/supplicant_manager.h> 26 27 #include "android/net/wifi/IClientInterface.h" 28 #include "wificond/net/mlme_event_handler.h" 29 #include "wificond/net/netlink_utils.h" 30 #include "wificond/scanning/offload/offload_service_utils.h" 31 #include "wificond/scanning/scanner_impl.h" 32 33 namespace android { 34 namespace wificond { 35 36 class ClientInterfaceBinder; 37 class ClientInterfaceImpl; 38 class ScanUtils; 39 40 class MlmeEventHandlerImpl : public MlmeEventHandler { 41 public: 42 MlmeEventHandlerImpl(ClientInterfaceImpl* client_interface); 43 ~MlmeEventHandlerImpl() override; 44 void OnConnect(std::unique_ptr<MlmeConnectEvent> event) override; 45 void OnRoam(std::unique_ptr<MlmeRoamEvent> event) override; 46 void OnAssociate(std::unique_ptr<MlmeAssociateEvent> event) override; 47 void OnDisconnect(std::unique_ptr<MlmeDisconnectEvent> event) override; 48 void OnDisassociate(std::unique_ptr<MlmeDisassociateEvent> event) override; 49 50 private: 51 ClientInterfaceImpl* client_interface_; 52 }; 53 54 // Holds the guts of how we control network interfaces capable of connecting to 55 // access points via wpa_supplicant. 56 // 57 // Because remote processes may hold on to the corresponding 58 // binder object past the lifetime of the local object, we are forced to 59 // keep this object separate from the binder representation of itself. 60 class ClientInterfaceImpl { 61 public: 62 ClientInterfaceImpl( 63 uint32_t wiphy_index, 64 const std::string& interface_name, 65 uint32_t interface_index, 66 const std::vector<uint8_t>& interface_mac_addr, 67 android::wifi_system::InterfaceTool* if_tool, 68 android::wifi_system::SupplicantManager* supplicant_manager, 69 NetlinkUtils* netlink_utils, 70 ScanUtils* scan_utils); 71 virtual ~ClientInterfaceImpl(); 72 73 // Get a pointer to the binder representing this ClientInterfaceImpl. 74 android::sp<android::net::wifi::IClientInterface> GetBinder() const; 75 76 bool EnableSupplicant(); 77 bool DisableSupplicant(); 78 bool GetPacketCounters(std::vector<int32_t>* out_packet_counters); 79 bool SignalPoll(std::vector<int32_t>* out_signal_poll_results); 80 const std::vector<uint8_t>& GetMacAddress(); 81 const std::string& GetInterfaceName() const { return interface_name_; } 82 const android::sp<ScannerImpl> GetScanner() { return scanner_; }; 83 bool requestANQP( 84 const ::std::vector<uint8_t>& bssid, 85 const ::android::sp<::android::net::wifi::IANQPDoneCallback>& callback); 86 virtual bool IsAssociated() const; 87 void Dump(std::stringstream* ss) const; 88 89 private: 90 bool RefreshAssociateFreq(); 91 92 const uint32_t wiphy_index_; 93 const std::string interface_name_; 94 const uint32_t interface_index_; 95 const std::vector<uint8_t> interface_mac_addr_; 96 android::wifi_system::InterfaceTool* const if_tool_; 97 android::wifi_system::SupplicantManager* const supplicant_manager_; 98 NetlinkUtils* const netlink_utils_; 99 ScanUtils* const scan_utils_; 100 const std::shared_ptr<OffloadServiceUtils> offload_service_utils_; 101 const std::unique_ptr<MlmeEventHandlerImpl> mlme_event_handler_; 102 const android::sp<ClientInterfaceBinder> binder_; 103 android::sp<ScannerImpl> scanner_; 104 105 // Cached information for this connection. 106 bool is_associated_; 107 std::vector<uint8_t> bssid_; 108 uint32_t associate_freq_; 109 110 // Capability information for this wiphy/interface. 111 BandInfo band_info_; 112 ScanCapabilities scan_capabilities_; 113 WiphyFeatures wiphy_features_; 114 115 DISALLOW_COPY_AND_ASSIGN(ClientInterfaceImpl); 116 friend class MlmeEventHandlerImpl; 117 }; 118 119 } // namespace wificond 120 } // namespace android 121 122 #endif // WIFICOND_CLIENT_INTERFACE_IMPL_H_ 123