| /* |
| * Copyright (C) 2015 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. |
| */ |
| |
| package com.android.server.wifi; |
| |
| import android.net.wifi.AnqpInformationElement; |
| import android.net.wifi.ScanResult; |
| import android.net.wifi.WifiSsid; |
| |
| import com.android.server.wifi.hotspot2.NetworkDetail; |
| import com.android.server.wifi.hotspot2.Utils; |
| import com.android.server.wifi.hotspot2.anqp.ANQPElement; |
| import com.android.server.wifi.hotspot2.anqp.Constants; |
| import com.android.server.wifi.hotspot2.anqp.HSFriendlyNameElement; |
| import com.android.server.wifi.hotspot2.anqp.RawByteElement; |
| import com.android.server.wifi.hotspot2.anqp.VenueNameElement; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Wifi scan result details. |
| */ |
| public class ScanDetail { |
| private final ScanResult mScanResult; |
| private volatile NetworkDetail mNetworkDetail; |
| private long mSeen = 0; |
| private byte[] mInformationElementRawData; |
| |
| public ScanDetail(NetworkDetail networkDetail, WifiSsid wifiSsid, String bssid, |
| String caps, int level, int frequency, long tsf, |
| ScanResult.InformationElement[] informationElements, List<String> anqpLines, |
| byte[] informationElementRawData) { |
| mNetworkDetail = networkDetail; |
| mScanResult = new ScanResult(wifiSsid, bssid, networkDetail.getHESSID(), |
| networkDetail.getAnqpDomainID(), networkDetail.getOsuProviders(), |
| caps, level, frequency, tsf); |
| mSeen = System.currentTimeMillis(); |
| mScanResult.seen = mSeen; |
| mScanResult.channelWidth = networkDetail.getChannelWidth(); |
| mScanResult.centerFreq0 = networkDetail.getCenterfreq0(); |
| mScanResult.centerFreq1 = networkDetail.getCenterfreq1(); |
| mScanResult.informationElements = informationElements; |
| mScanResult.anqpLines = anqpLines; |
| if (networkDetail.is80211McResponderSupport()) { |
| mScanResult.setFlag(ScanResult.FLAG_80211mc_RESPONDER); |
| } |
| if (networkDetail.isInterworking() && networkDetail.getHSRelease() != null) { |
| mScanResult.setFlag(ScanResult.FLAG_PASSPOINT_NETWORK); |
| } |
| mInformationElementRawData = informationElementRawData; |
| } |
| |
| public ScanDetail(WifiSsid wifiSsid, String bssid, String caps, int level, int frequency, |
| long tsf, long seen) { |
| mNetworkDetail = null; |
| mScanResult = new ScanResult(wifiSsid, bssid, 0L, -1, null, caps, level, frequency, tsf); |
| mSeen = seen; |
| mScanResult.seen = mSeen; |
| mScanResult.channelWidth = 0; |
| mScanResult.centerFreq0 = 0; |
| mScanResult.centerFreq1 = 0; |
| mScanResult.flags = 0; |
| } |
| |
| public ScanDetail(ScanResult scanResult, NetworkDetail networkDetail) { |
| mScanResult = scanResult; |
| mNetworkDetail = networkDetail; |
| // Only inherit |mScanResult.seen| if it was previously set. This ensures that |mSeen| |
| // will always contain a valid timestamp. |
| mSeen = (mScanResult.seen == 0) ? System.currentTimeMillis() : mScanResult.seen; |
| } |
| |
| /** |
| * Store ANQ element information |
| * |
| * @param anqpElements Map<Constants.ANQPElementType, ANQPElement> |
| */ |
| public void propagateANQPInfo(Map<Constants.ANQPElementType, ANQPElement> anqpElements) { |
| if (anqpElements.isEmpty()) { |
| return; |
| } |
| mNetworkDetail = mNetworkDetail.complete(anqpElements); |
| HSFriendlyNameElement fne = (HSFriendlyNameElement) anqpElements.get( |
| Constants.ANQPElementType.HSFriendlyName); |
| // !!! Match with language |
| if (fne != null && !fne.getNames().isEmpty()) { |
| mScanResult.venueName = fne.getNames().get(0).getText(); |
| } else { |
| VenueNameElement vne = |
| (((VenueNameElement) anqpElements.get( |
| Constants.ANQPElementType.ANQPVenueName))); |
| if (vne != null && !vne.getNames().isEmpty()) { |
| mScanResult.venueName = vne.getNames().get(0).getText(); |
| } |
| } |
| RawByteElement osuProviders = (RawByteElement) anqpElements |
| .get(Constants.ANQPElementType.HSOSUProviders); |
| if (osuProviders != null) { |
| mScanResult.anqpElements = new AnqpInformationElement[1]; |
| mScanResult.anqpElements[0] = |
| new AnqpInformationElement(AnqpInformationElement.HOTSPOT20_VENDOR_ID, |
| AnqpInformationElement.HS_OSU_PROVIDERS, osuProviders.getPayload()); |
| } |
| } |
| |
| public ScanResult getScanResult() { |
| return mScanResult; |
| } |
| |
| public NetworkDetail getNetworkDetail() { |
| return mNetworkDetail; |
| } |
| |
| public String getSSID() { |
| return mNetworkDetail == null ? mScanResult.SSID : mNetworkDetail.getSSID(); |
| } |
| |
| public String getBSSIDString() { |
| return mNetworkDetail == null ? mScanResult.BSSID : mNetworkDetail.getBSSIDString(); |
| } |
| |
| /** |
| * Return the network detail key string. |
| */ |
| public String toKeyString() { |
| NetworkDetail networkDetail = mNetworkDetail; |
| if (networkDetail != null) { |
| return networkDetail.toKeyString(); |
| } else { |
| return String.format("'%s':%012x", |
| mScanResult.BSSID, |
| Utils.parseMac(mScanResult.BSSID)); |
| } |
| } |
| |
| /** |
| * Return the time this network was last seen. |
| */ |
| public long getSeen() { |
| return mSeen; |
| } |
| |
| /** |
| * Update the time this network was last seen to the current system time. |
| */ |
| public long setSeen() { |
| mSeen = System.currentTimeMillis(); |
| mScanResult.seen = mSeen; |
| return mSeen; |
| } |
| |
| /** |
| * Return the network information element raw data. |
| */ |
| public byte[] getInformationElementRawData() { |
| return mInformationElementRawData; |
| } |
| |
| @Override |
| public String toString() { |
| try { |
| return String.format("'%s'/%012x", |
| mScanResult.SSID, |
| Utils.parseMac(mScanResult.BSSID)); |
| } catch (IllegalArgumentException iae) { |
| return String.format("'%s'/----", mScanResult.BSSID); |
| } |
| } |
| } |