1 /* 2 * Copyright (C) 2022 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 WIFI_IFACE_UTIL_H_ 18 #define WIFI_IFACE_UTIL_H_ 19 20 #include <aidl/android/hardware/wifi/IWifi.h> 21 #include <wifi_system/interface_tool.h> 22 23 #include "wifi_legacy_hal.h" 24 25 namespace aidl { 26 namespace android { 27 namespace hardware { 28 namespace wifi { 29 namespace iface_util { 30 31 // Iface event handlers. 32 struct IfaceEventHandlers { 33 // Callback to be invoked when the iface is set down & up for MAC address 34 // change. 35 std::function<void(const std::string& iface_name)> on_state_toggle_off_on; 36 }; 37 38 /** 39 * Util class for common iface operations. 40 */ 41 class WifiIfaceUtil { 42 public: 43 WifiIfaceUtil(const std::weak_ptr<::android::wifi_system::InterfaceTool> iface_tool, 44 const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal); 45 virtual ~WifiIfaceUtil() = default; 46 47 virtual std::array<uint8_t, 6> getFactoryMacAddress(const std::string& iface_name); 48 virtual bool setMacAddress(const std::string& iface_name, const std::array<uint8_t, 6>& mac); 49 // Get or create a random MAC address. The MAC address returned from 50 // this method will remain the same throughout the lifetime of the HAL 51 // daemon. (So, changes on every reboot) 52 virtual std::array<uint8_t, 6> getOrCreateRandomMacAddress(); 53 54 // Register for any iface event callbacks for the provided interface. 55 virtual void registerIfaceEventHandlers(const std::string& iface_name, 56 IfaceEventHandlers handlers); 57 virtual void unregisterIfaceEventHandlers(const std::string& iface_name); 58 virtual bool setUpState(const std::string& iface_name, bool request_up); 59 virtual unsigned ifNameToIndex(const std::string& iface_name); 60 61 virtual bool createBridge(const std::string& br_name); 62 63 virtual bool deleteBridge(const std::string& br_name); 64 65 virtual bool addIfaceToBridge(const std::string& br_name, const std::string& if_name); 66 67 virtual bool removeIfaceFromBridge(const std::string& br_name, const std::string& if_name); 68 // Get a random MAC address. 69 virtual std::array<uint8_t, 6> createRandomMacAddress(); 70 71 private: 72 std::weak_ptr<::android::wifi_system::InterfaceTool> iface_tool_; 73 std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_; 74 std::unique_ptr<std::array<uint8_t, 6>> random_mac_address_; 75 std::map<std::string, IfaceEventHandlers> event_handlers_map_; 76 }; 77 78 } // namespace iface_util 79 } // namespace wifi 80 } // namespace hardware 81 } // namespace android 82 } // namespace aidl 83 84 #endif // WIFI_IFACE_UTIL_H_ 85