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_SCANNER_IMPL_H_ 18 #define WIFICOND_SCANNER_IMPL_H_ 19 20 #include <vector> 21 22 #include <android-base/macros.h> 23 #include <binder/Status.h> 24 25 #include "android/net/wifi/BnWifiScannerImpl.h" 26 #include "wificond/net/netlink_utils.h" 27 28 namespace android { 29 namespace wificond { 30 31 class ClientInterfaceImpl; 32 class ScanUtils; 33 34 class ScannerImpl : public android::net::wifi::BnWifiScannerImpl { 35 public: 36 ScannerImpl(uint32_t wiphy_index, 37 uint32_t interface_index, 38 const ScanCapabilities& scan_capabilities, 39 const WiphyFeatures& wiphy_features, 40 ClientInterfaceImpl* client_interface, 41 NetlinkUtils* netlink_utils, 42 ScanUtils* scan_utils); 43 ~ScannerImpl(); 44 // Returns a vector of available frequencies for 2.4GHz channels. 45 ::android::binder::Status getAvailable2gChannels( 46 ::std::unique_ptr<::std::vector<int32_t>>* out_frequencies) override; 47 // Returns a vector of available frequencies for 5GHz non-DFS channels. 48 ::android::binder::Status getAvailable5gNonDFSChannels( 49 ::std::unique_ptr<::std::vector<int32_t>>* out_frequencies) override; 50 // Returns a vector of available frequencies for DFS channels. 51 ::android::binder::Status getAvailableDFSChannels( 52 ::std::unique_ptr<::std::vector<int32_t>>* out_frequencies) override; 53 // Get the latest scan results from kernel. 54 ::android::binder::Status getScanResults( 55 std::vector<com::android::server::wifi::wificond::NativeScanResult>* 56 out_scan_results) override; 57 ::android::binder::Status scan( 58 const ::com::android::server::wifi::wificond::SingleScanSettings& 59 scan_settings, 60 bool* out_success) override; 61 ::android::binder::Status startPnoScan( 62 const ::com::android::server::wifi::wificond::PnoSettings& pno_settings, 63 bool* out_success) override; 64 ::android::binder::Status stopPnoScan(bool* out_success) override; 65 ::android::binder::Status abortScan() override; 66 67 ::android::binder::Status subscribeScanEvents( 68 const ::android::sp<::android::net::wifi::IScanEvent>& handler) override; 69 ::android::binder::Status unsubscribeScanEvents() override; 70 ::android::binder::Status subscribePnoScanEvents( 71 const ::android::sp<::android::net::wifi::IPnoScanEvent>& handler) override; 72 ::android::binder::Status unsubscribePnoScanEvents() override; 73 void Invalidate(); 74 75 private: 76 bool CheckIsValid(); 77 void OnScanResultsReady( 78 uint32_t interface_index, 79 bool aborted, 80 std::vector<std::vector<uint8_t>>& ssids, 81 std::vector<uint32_t>& frequencies); 82 void OnSchedScanResultsReady(uint32_t interface_index, bool scan_stopped); 83 void LogSsidList(std::vector<std::vector<uint8_t>>& ssid_list, 84 std::string prefix); 85 86 // Boolean variables describing current scanner status. 87 bool valid_; 88 bool scan_started_; 89 bool pno_scan_started_; 90 91 const uint32_t wiphy_index_; 92 const uint32_t interface_index_; 93 94 // Scanning relevant capability information for this wiphy/interface. 95 ScanCapabilities scan_capabilities_; 96 WiphyFeatures wiphy_features_; 97 98 ClientInterfaceImpl* client_interface_; 99 NetlinkUtils* const netlink_utils_; 100 ScanUtils* const scan_utils_; 101 ::android::sp<::android::net::wifi::IPnoScanEvent> pno_scan_event_handler_; 102 ::android::sp<::android::net::wifi::IScanEvent> scan_event_handler_; 103 104 DISALLOW_COPY_AND_ASSIGN(ScannerImpl); 105 }; 106 107 } // namespace wificond 108 } // namespace android 109 110 #endif // WIFICOND_SCANNER_IMPL_H_ 111