1 /* 2 * Copyright (C) 2017 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 #include <algorithm> 18 19 #include "chre/apps/wifi_offload/chre_scan_params_safe.h" 20 #include "chre/apps/wifi_offload/utility.h" 21 22 namespace wifi_offload { 23 24 ChreScanParamsSafe::ChreScanParamsSafe(const ScanParams &scan_params) { 25 // point chre_scan_params_ pointers to allocated buffers 26 chre_scan_params_.frequencyList = chre_scan_params_frequencies_; 27 chre_scan_params_.ssidList = chre_scan_params_ssids_; 28 29 UpdateFromScanParams(scan_params); 30 } 31 32 const chreWifiScanParams *ChreScanParamsSafe::GetChreWifiScanParams() { 33 return &chre_scan_params_; 34 } 35 36 void ChreScanParamsSafe::Log() const { 37 LOGI("chreWifiScanParams:"); 38 LOGI(" scan type: %" PRIu8, chre_scan_params_.scanType); 39 LOGI(" max scan age (ms): %" PRIu32, chre_scan_params_.maxScanAgeMs); 40 LOGI(" frequency list length: %" PRIu16, chre_scan_params_.frequencyListLen); 41 for (size_t i = 0; i < chre_scan_params_.frequencyListLen; i++) { 42 LOGI(" frequency: %" PRIu32, chre_scan_params_.frequencyList[i]); 43 } 44 LOGI(" ssid list length: %" PRIu8, chre_scan_params_.ssidListLen); 45 for (size_t i = 0; i < chre_scan_params_.ssidListLen; i++) { 46 utility::LogSsid(chre_scan_params_.ssidList[i].ssid, 47 chre_scan_params_.ssidList[i].ssidLen); 48 } 49 } 50 51 void ChreScanParamsSafe::UpdateFromScanParams(const ScanParams &scan_params) { 52 chre_scan_params_.scanType = CHRE_WIFI_SCAN_TYPE_ACTIVE_PLUS_PASSIVE_DFS; 53 chre_scan_params_.maxScanAgeMs = 0; 54 55 chre_scan_params_.frequencyListLen = std::min( 56 static_cast<uint16_t>(scan_params.frequencies_to_scan_mhz_.size()), 57 static_cast<uint16_t>(CHRE_WIFI_FREQUENCY_LIST_MAX_LEN)); 58 if (chre_scan_params_.frequencyListLen < 59 scan_params.frequencies_to_scan_mhz_.size()) { 60 LOGW("Too many ScanParams frequencies %zu truncated to max %" PRIu16, 61 scan_params.frequencies_to_scan_mhz_.size(), 62 chre_scan_params_.frequencyListLen); 63 } 64 65 std::copy(scan_params.frequencies_to_scan_mhz_.begin(), 66 scan_params.frequencies_to_scan_mhz_.begin() + 67 chre_scan_params_.frequencyListLen, 68 chre_scan_params_frequencies_); 69 70 chre_scan_params_.ssidListLen = 71 std::min(static_cast<uint8_t>(scan_params.ssids_to_scan_.size()), 72 static_cast<uint8_t>(CHRE_WIFI_SSID_LIST_MAX_LEN)); 73 if (chre_scan_params_.ssidListLen < scan_params.ssids_to_scan_.size()) { 74 LOGW("Too many ScanParams ssids %zu truncated to max %" PRIu8, 75 scan_params.ssids_to_scan_.size(), chre_scan_params_.ssidListLen); 76 } 77 78 for (size_t i = 0; i < chre_scan_params_.ssidListLen; i++) { 79 scan_params.ssids_to_scan_[i].ToChreWifiSsidListItem( 80 &chre_scan_params_ssids_[i]); 81 } 82 } 83 84 } // namespace wifi_offload 85
