| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "chre/util/nanoapp/wifi.h" |
| |
| #ifdef CHRE_IS_NANOAPP_BUILD |
| #include "chre/util/nanoapp/log.h" |
| #else |
| #include "chre/platform/log.h" |
| #endif // CHRE_IS_NANOAPP_BUILD |
| |
| #include <cctype> |
| #include <cinttypes> |
| #include <cstdio> |
| #include <cstring> |
| |
| namespace chre { |
| |
| void logChreWifiResult(const chreWifiScanResult &result, bool logSsidOnly) { |
| const char *ssidStr = "<non-printable>"; |
| char ssidBuffer[kMaxSsidStrLen]; |
| if (result.ssidLen == 0) { |
| ssidStr = "<empty>"; |
| } else if (parseSsidToStr(ssidBuffer, sizeof(ssidBuffer), result.ssid, |
| result.ssidLen)) { |
| ssidStr = ssidBuffer; |
| } |
| |
| LOGI("Found network with SSID: %s", ssidStr); |
| if (!logSsidOnly) { |
| const char *bssidStr = "<non-printable>"; |
| char bssidBuffer[kBssidStrLen]; |
| if (parseBssidToStr(result.bssid, bssidBuffer, sizeof(bssidBuffer))) { |
| bssidStr = bssidBuffer; |
| } |
| |
| LOGI(" age (ms): %" PRIu32, result.ageMs); |
| LOGI(" capability info: %" PRIx16, result.capabilityInfo); |
| LOGI(" bssid: %s", bssidStr); |
| LOGI(" flags: %" PRIx8, result.flags); |
| LOGI(" rssi: %" PRId8 "dBm", result.rssi); |
| LOGI(" band: %s (%" PRIu8 ")", parseChreWifiBand(result.band), |
| result.band); |
| LOGI(" primary channel: %" PRIu32, result.primaryChannel); |
| LOGI(" center frequency primary: %" PRIu32, result.centerFreqPrimary); |
| LOGI(" center frequency secondary: %" PRIu32, result.centerFreqSecondary); |
| LOGI(" channel width: %" PRIu8, result.channelWidth); |
| LOGI(" security mode: %" PRIx8, result.securityMode); |
| } |
| } |
| |
| bool parseSsidToStr(char *buffer, size_t bufferLen, const uint8_t *ssid, |
| uint8_t ssidLen) { |
| // Ensure that there is enough space in the buffer to copy the SSID and |
| // null-terminate it. |
| bool success = (bufferLen >= static_cast<size_t>(ssidLen + 1)); |
| |
| if (success) { |
| // Verify that the ssid is entirely printable characters and ASCII spaces. |
| for (uint8_t i = 0; i < ssidLen; i++) { |
| if (!isgraph(ssid[i]) && ssid[i] != ' ') { |
| success = false; |
| break; |
| } |
| } |
| } |
| |
| if (success) { |
| // Copy the SSID to the buffer and null-terminate. |
| memcpy(buffer, ssid, ssidLen + 1); |
| buffer[ssidLen] = '\0'; |
| } |
| |
| return success; |
| } |
| |
| bool parseBssidToStr(const uint8_t bssid[CHRE_WIFI_BSSID_LEN], char *buffer, |
| size_t bufferLen) { |
| const char *kFormat = "%02" PRIx8 ":%02" PRIx8 ":%02" PRIx8 ":%02" PRIx8 |
| ":%02" PRIx8 ":%02" PRIx8; |
| |
| bool success = false; |
| if (bufferLen >= kBssidStrLen) { |
| success = true; |
| snprintf(buffer, bufferLen, kFormat, bssid[0], bssid[1], bssid[2], bssid[3], |
| bssid[4], bssid[5]); |
| } |
| |
| return success; |
| } |
| |
| const char *parseChreWifiBand(uint8_t band) { |
| switch (band) { |
| case CHRE_WIFI_BAND_2_4_GHZ: |
| return "2.4GHz"; |
| case CHRE_WIFI_BAND_MASK_5_GHZ: |
| return "5GHz"; |
| default: |
| return "<invalid>"; |
| } |
| } |
| |
| } // namespace chre |