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141 lines
5.1 KiB
141 lines
5.1 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "wificond/scanning/scan_result.h"
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#include <algorithm>
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#include <android-base/logging.h>
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#include "wificond/logging_utils.h"
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#include "wificond/parcelable_utils.h"
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using android::status_t;
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using android::OK;
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using std::string;
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namespace android {
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namespace net {
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namespace wifi {
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namespace nl80211 {
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NativeScanResult::NativeScanResult(std::vector<uint8_t>& ssid_,
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std::array<uint8_t, ETH_ALEN>& bssid_,
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std::vector<uint8_t>& info_element_,
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uint32_t frequency_,
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int32_t signal_mbm_,
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uint64_t tsf_,
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uint16_t capability_,
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bool associated_,
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std::vector<RadioChainInfo>& radio_chain_infos_)
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: ssid(ssid_),
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bssid(bssid_),
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info_element(info_element_),
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frequency(frequency_),
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signal_mbm(signal_mbm_),
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tsf(tsf_),
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capability(capability_),
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associated(associated_),
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radio_chain_infos(radio_chain_infos_) {
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}
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status_t NativeScanResult::writeToParcel(::android::Parcel* parcel) const {
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RETURN_IF_FAILED(parcel->writeByteVector(ssid));
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RETURN_IF_FAILED(parcel->writeByteVector(
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std::vector<uint8_t>(bssid.begin(), bssid.end())));
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RETURN_IF_FAILED(parcel->writeByteVector(info_element));
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RETURN_IF_FAILED(parcel->writeUint32(frequency));
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RETURN_IF_FAILED(parcel->writeInt32(signal_mbm));
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RETURN_IF_FAILED(parcel->writeUint64(tsf));
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// There is no writeUint16() available.
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// Use writeUint32() instead.
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RETURN_IF_FAILED(parcel->writeUint32(capability));
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RETURN_IF_FAILED(parcel->writeInt32(associated ? 1 : 0));
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RETURN_IF_FAILED(parcel->writeInt32(radio_chain_infos.size()));
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for (const auto& radio_chain_info : radio_chain_infos) {
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// For Java readTypedList():
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// A leading number 1 means this object is not null.
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RETURN_IF_FAILED(parcel->writeInt32(1));
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RETURN_IF_FAILED(radio_chain_info.writeToParcel(parcel));
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}
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return ::android::OK;
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}
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status_t NativeScanResult::readFromParcel(const ::android::Parcel* parcel) {
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RETURN_IF_FAILED(parcel->readByteVector(&ssid));
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{
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std::vector<uint8_t> bssid_vec;
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RETURN_IF_FAILED(parcel->readByteVector(&bssid_vec));
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if (bssid_vec.size() != ETH_ALEN) {
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LOG(ERROR) << "bssid length expected " << ETH_ALEN << " bytes, but got "
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<< bssid_vec.size() << " bytes";
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return ::android::BAD_VALUE;
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}
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std::copy_n(bssid_vec.begin(), ETH_ALEN, bssid.begin());
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}
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RETURN_IF_FAILED(parcel->readByteVector(&info_element));
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RETURN_IF_FAILED(parcel->readUint32(&frequency));
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RETURN_IF_FAILED(parcel->readInt32(&signal_mbm));
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RETURN_IF_FAILED(parcel->readUint64(&tsf));
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// There is no readUint16() available.
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// Use readUint32() instead.
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capability = static_cast<uint16_t>(parcel->readUint32());
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associated = (parcel->readInt32() != 0);
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int32_t num_radio_chain_infos = 0;
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RETURN_IF_FAILED(parcel->readInt32(&num_radio_chain_infos));
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for (int i = 0; i < num_radio_chain_infos; i++) {
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RadioChainInfo radio_chain_info;
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// From Java writeTypedList():
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// A leading number 1 means this object is not null.
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// We never expect a 0 or other values here.
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int32_t leading_number = 0;
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RETURN_IF_FAILED(parcel->readInt32(&leading_number));
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if (leading_number != 1) {
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LOG(ERROR) << "Unexpected leading number before an object: "
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<< leading_number;
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return ::android::BAD_VALUE;
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}
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RETURN_IF_FAILED(radio_chain_info.readFromParcel(parcel));
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radio_chain_infos.push_back(radio_chain_info);
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}
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return ::android::OK;
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}
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void NativeScanResult::DebugLog() {
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LOG(INFO) << "Scan result:";
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// |ssid| might be an encoded array but we just print it as ASCII here.
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string ssid_str(ssid.data(), ssid.data() + ssid.size());
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LOG(INFO) << "SSID: " << ssid_str;
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LOG(INFO) << "BSSID: "
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<< ::android::wificond::LoggingUtils::GetMacString(bssid);
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LOG(INFO) << "FREQUENCY: " << frequency;
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LOG(INFO) << "SIGNAL: " << signal_mbm/100 << "dBm";
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LOG(INFO) << "TSF: " << tsf;
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LOG(INFO) << "CAPABILITY: " << capability;
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LOG(INFO) << "ASSOCIATED: " << associated;
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for (const auto& radio_chain_info : radio_chain_infos) {
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LOG(INFO) << "RADIO CHAIN ID: " << radio_chain_info.chain_id;
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LOG(INFO) << "RADIO CHAIN LEVEL: " << radio_chain_info.level;
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}
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}
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} // namespace nl80211
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} // namespace wifi
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} // namespace net
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} // namespace android
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