1 /* 2 * Copyright (C) 2019 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 <wifi_system/interface_tool.h> 21 22 #include <android/hardware/wifi/1.0/IWifi.h> 23 24 #include "wifi_legacy_hal.h" 25 26 namespace android { 27 namespace hardware { 28 namespace wifi { 29 namespace V1_6 { 30 namespace implementation { 31 namespace iface_util { 32 33 // Iface event handlers. 34 struct IfaceEventHandlers { 35 // Callback to be invoked when the iface is set down & up for MAC address 36 // change. 37 std::function<void(const std::string& iface_name)> on_state_toggle_off_on; 38 }; 39 40 /** 41 * Util class for common iface operations. 42 */ 43 class WifiIfaceUtil { 44 public: 45 WifiIfaceUtil(const std::weak_ptr<wifi_system::InterfaceTool> iface_tool, 46 const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal); 47 virtual ~WifiIfaceUtil() = default; 48 49 virtual std::array<uint8_t, 6> getFactoryMacAddress(const std::string& iface_name); 50 virtual bool setMacAddress(const std::string& iface_name, const std::array<uint8_t, 6>& mac); 51 // Get or create a random MAC address. The MAC address returned from 52 // this method will remain the same throughout the lifetime of the HAL 53 // daemon. (So, changes on every reboot) 54 virtual std::array<uint8_t, 6> getOrCreateRandomMacAddress(); 55 56 // Register for any iface event callbacks for the provided interface. 57 virtual void registerIfaceEventHandlers(const std::string& iface_name, 58 IfaceEventHandlers handlers); 59 virtual void unregisterIfaceEventHandlers(const std::string& iface_name); 60 virtual bool setUpState(const std::string& iface_name, bool request_up); 61 virtual unsigned ifNameToIndex(const std::string& iface_name); 62 63 virtual bool createBridge(const std::string& br_name); 64 65 virtual bool deleteBridge(const std::string& br_name); 66 67 virtual bool addIfaceToBridge(const std::string& br_name, const std::string& if_name); 68 69 virtual bool removeIfaceFromBridge(const std::string& br_name, const std::string& if_name); 70 // Get a random MAC address. 71 virtual std::array<uint8_t, 6> createRandomMacAddress(); 72 73 private: 74 std::weak_ptr<wifi_system::InterfaceTool> iface_tool_; 75 std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_; 76 std::unique_ptr<std::array<uint8_t, 6>> random_mac_address_; 77 std::map<std::string, IfaceEventHandlers> event_handlers_map_; 78 }; 79 80 } // namespace iface_util 81 } // namespace implementation 82 } // namespace V1_6 83 } // namespace wifi 84 } // namespace hardware 85 } // namespace android 86 87 #endif // WIFI_IFACE_UTIL_H_ 88