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_SERVER_H_ 18 #define WIFICOND_SERVER_H_ 19 20 #include <memory> 21 #include <string> 22 #include <vector> 23 24 #include <android-base/macros.h> 25 #include <wifi_system/interface_tool.h> 26 #include <wifi_system/supplicant_manager.h> 27 28 #include "android/net/wifi/BnWificond.h" 29 #include "android/net/wifi/IApInterface.h" 30 #include "android/net/wifi/IClientInterface.h" 31 #include "android/net/wifi/IInterfaceEventCallback.h" 32 33 #include "wificond/ap_interface_impl.h" 34 #include "wificond/client_interface_impl.h" 35 36 namespace android { 37 namespace wificond { 38 39 class NL80211Packet; 40 class NetlinkUtils; 41 class ScanUtils; 42 43 struct InterfaceInfo; 44 45 class Server : public android::net::wifi::BnWificond { 46 public: 47 Server(std::unique_ptr<wifi_system::InterfaceTool> if_tool, 48 std::unique_ptr<wifi_system::SupplicantManager> supplicant_man, 49 std::unique_ptr<wifi_system::HostapdManager> hostapd_man, 50 NetlinkUtils* netlink_utils, 51 ScanUtils* scan_utils); 52 ~Server() override = default; 53 54 android::binder::Status RegisterCallback( 55 const android::sp<android::net::wifi::IInterfaceEventCallback>& 56 callback) override; 57 android::binder::Status UnregisterCallback( 58 const android::sp<android::net::wifi::IInterfaceEventCallback>& 59 callback) override; 60 // Returns a vector of available frequencies for 2.4GHz channels. 61 android::binder::Status getAvailable2gChannels( 62 ::std::unique_ptr<::std::vector<int32_t>>* out_frequencies) override; 63 // Returns a vector of available frequencies for 5GHz non-DFS channels. 64 android::binder::Status getAvailable5gNonDFSChannels( 65 ::std::unique_ptr<::std::vector<int32_t>>* out_frequencies) override; 66 // Returns a vector of available frequencies for DFS channels. 67 android::binder::Status getAvailableDFSChannels( 68 ::std::unique_ptr<::std::vector<int32_t>>* out_frequencies) override; 69 70 android::binder::Status createApInterface( 71 const std::string& iface_name, 72 android::sp<android::net::wifi::IApInterface>* 73 created_interface) override; 74 75 android::binder::Status createClientInterface( 76 const std::string& iface_name, 77 android::sp<android::net::wifi::IClientInterface>* 78 created_interface) override; 79 80 android::binder::Status tearDownApInterface( 81 const std::string& iface_name, 82 bool* out_success) override; 83 84 android::binder::Status tearDownClientInterface( 85 const std::string& iface_name, 86 bool* out_success) override; 87 88 android::binder::Status tearDownInterfaces() override; 89 android::binder::Status enableSupplicant(bool* success) override; 90 android::binder::Status disableSupplicant(bool* success) override; 91 92 android::binder::Status GetClientInterfaces( 93 std::vector<android::sp<android::IBinder>>* out_client_ifs) override; 94 android::binder::Status GetApInterfaces( 95 std::vector<android::sp<android::IBinder>>* out_ap_ifs) override; 96 status_t dump(int fd, const Vector<String16>& args) override; 97 98 private: 99 // Request interface information from kernel and setup local interface object. 100 // This assumes that interface should be in STATION mode. Even if we setup 101 // interface on behalf of createApInterace(), it is Hostapd that configure 102 // the interface to Ap mode later. 103 // Returns true on success, false otherwise. 104 bool SetupInterface(const std::string& iface_name, InterfaceInfo* interface); 105 bool RefreshWiphyIndex(); 106 void LogSupportedBands(); 107 void OnRegDomainChanged(std::string& country_code); 108 void BroadcastClientInterfaceReady( 109 android::sp<android::net::wifi::IClientInterface> network_interface); 110 void BroadcastApInterfaceReady( 111 android::sp<android::net::wifi::IApInterface> network_interface); 112 void BroadcastClientInterfaceTornDown( 113 android::sp<android::net::wifi::IClientInterface> network_interface); 114 void BroadcastApInterfaceTornDown( 115 android::sp<android::net::wifi::IApInterface> network_interface); 116 void MarkDownAllInterfaces(); 117 118 const std::unique_ptr<wifi_system::InterfaceTool> if_tool_; 119 const std::unique_ptr<wifi_system::SupplicantManager> supplicant_manager_; 120 const std::unique_ptr<wifi_system::HostapdManager> hostapd_manager_; 121 NetlinkUtils* const netlink_utils_; 122 ScanUtils* const scan_utils_; 123 124 uint32_t wiphy_index_; 125 std::map<std::string, std::unique_ptr<ApInterfaceImpl>> ap_interfaces_; 126 std::map<std::string, std::unique_ptr<ClientInterfaceImpl>> client_interfaces_; 127 std::vector<android::sp<android::net::wifi::IInterfaceEventCallback>> 128 interface_event_callbacks_; 129 130 // Cached interface list from kernel. 131 std::vector<InterfaceInfo> interfaces_; 132 133 DISALLOW_COPY_AND_ASSIGN(Server); 134 }; 135 136 } // namespace wificond 137 } // namespace android 138 139 #endif // WIFICOND_SERVER_H_ 140