Merge "Move NetworkStatsFactory into service directory"
This commit is contained in:
Treehugger Robot
@@ -0,0 +1,409 @@
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/*
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* Copyright (C) 2011 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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package com.android.server.net;
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import static android.net.NetworkStats.SET_ALL;
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import static android.net.NetworkStats.TAG_ALL;
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import static android.net.NetworkStats.TAG_NONE;
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import static android.net.NetworkStats.UID_ALL;
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import static com.android.server.NetworkManagementSocketTagger.kernelToTag;
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import android.annotation.Nullable;
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import android.net.NetworkStats;
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import android.os.StrictMode;
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import android.os.SystemClock;
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import com.android.internal.annotations.VisibleForTesting;
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import com.android.internal.util.ArrayUtils;
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import com.android.internal.util.ProcFileReader;
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import libcore.io.IoUtils;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.net.ProtocolException;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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/**
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* Creates {@link NetworkStats} instances by parsing various {@code /proc/}
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* files as needed.
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*
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* @hide
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*/
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public class NetworkStatsFactory {
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private static final String TAG = "NetworkStatsFactory";
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private static final boolean USE_NATIVE_PARSING = true;
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private static final boolean SANITY_CHECK_NATIVE = false;
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/** Path to {@code /proc/net/xt_qtaguid/iface_stat_all}. */
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private final File mStatsXtIfaceAll;
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/** Path to {@code /proc/net/xt_qtaguid/iface_stat_fmt}. */
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private final File mStatsXtIfaceFmt;
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/** Path to {@code /proc/net/xt_qtaguid/stats}. */
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private final File mStatsXtUid;
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private boolean mUseBpfStats;
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// A persistent Snapshot since device start for eBPF stats
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private final NetworkStats mPersistSnapshot;
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// TODO: only do adjustments in NetworkStatsService and remove this.
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/**
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* (Stacked interface) -> (base interface) association for all connected ifaces since boot.
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*
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* Because counters must never roll backwards, once a given interface is stacked on top of an
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* underlying interface, the stacked interface can never be stacked on top of
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* another interface. */
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private static final ConcurrentHashMap<String, String> sStackedIfaces
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= new ConcurrentHashMap<>();
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public static void noteStackedIface(String stackedIface, String baseIface) {
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if (stackedIface != null && baseIface != null) {
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sStackedIfaces.put(stackedIface, baseIface);
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}
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}
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/**
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* Get a set of interfaces containing specified ifaces and stacked interfaces.
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*
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* <p>The added stacked interfaces are ifaces stacked on top of the specified ones, or ifaces
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* on which the specified ones are stacked. Stacked interfaces are those noted with
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* {@link #noteStackedIface(String, String)}, but only interfaces noted before this method
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* is called are guaranteed to be included.
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*/
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public static String[] augmentWithStackedInterfaces(@Nullable String[] requiredIfaces) {
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if (requiredIfaces == NetworkStats.INTERFACES_ALL) {
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return null;
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}
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HashSet<String> relatedIfaces = new HashSet<>(Arrays.asList(requiredIfaces));
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// ConcurrentHashMap's EntrySet iterators are "guaranteed to traverse
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// elements as they existed upon construction exactly once, and may
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// (but are not guaranteed to) reflect any modifications subsequent to construction".
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// This is enough here.
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for (Map.Entry<String, String> entry : sStackedIfaces.entrySet()) {
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if (relatedIfaces.contains(entry.getKey())) {
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relatedIfaces.add(entry.getValue());
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} else if (relatedIfaces.contains(entry.getValue())) {
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relatedIfaces.add(entry.getKey());
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}
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}
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String[] outArray = new String[relatedIfaces.size()];
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return relatedIfaces.toArray(outArray);
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}
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/**
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* Applies 464xlat adjustments with ifaces noted with {@link #noteStackedIface(String, String)}.
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* @see NetworkStats#apply464xlatAdjustments(NetworkStats, NetworkStats, Map, boolean)
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*/
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public static void apply464xlatAdjustments(NetworkStats baseTraffic,
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NetworkStats stackedTraffic, boolean useBpfStats) {
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NetworkStats.apply464xlatAdjustments(baseTraffic, stackedTraffic, sStackedIfaces,
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useBpfStats);
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}
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@VisibleForTesting
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public static void clearStackedIfaces() {
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sStackedIfaces.clear();
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}
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public NetworkStatsFactory() {
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this(new File("/proc/"), new File("/sys/fs/bpf/map_netd_app_uid_stats_map").exists());
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}
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@VisibleForTesting
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public NetworkStatsFactory(File procRoot, boolean useBpfStats) {
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mStatsXtIfaceAll = new File(procRoot, "net/xt_qtaguid/iface_stat_all");
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mStatsXtIfaceFmt = new File(procRoot, "net/xt_qtaguid/iface_stat_fmt");
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mStatsXtUid = new File(procRoot, "net/xt_qtaguid/stats");
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mUseBpfStats = useBpfStats;
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mPersistSnapshot = new NetworkStats(SystemClock.elapsedRealtime(), -1);
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}
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public NetworkStats readBpfNetworkStatsDev() throws IOException {
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final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 6);
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if (nativeReadNetworkStatsDev(stats) != 0) {
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throw new IOException("Failed to parse bpf iface stats");
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}
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return stats;
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}
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/**
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* Parse and return interface-level summary {@link NetworkStats} measured
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* using {@code /proc/net/dev} style hooks, which may include non IP layer
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* traffic. Values monotonically increase since device boot, and may include
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* details about inactive interfaces.
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*
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* @throws IllegalStateException when problem parsing stats.
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*/
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public NetworkStats readNetworkStatsSummaryDev() throws IOException {
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// Return xt_bpf stats if switched to bpf module.
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if (mUseBpfStats)
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return readBpfNetworkStatsDev();
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final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads();
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final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 6);
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final NetworkStats.Entry entry = new NetworkStats.Entry();
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ProcFileReader reader = null;
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try {
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reader = new ProcFileReader(new FileInputStream(mStatsXtIfaceAll));
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while (reader.hasMoreData()) {
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entry.iface = reader.nextString();
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entry.uid = UID_ALL;
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entry.set = SET_ALL;
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entry.tag = TAG_NONE;
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final boolean active = reader.nextInt() != 0;
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// always include snapshot values
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entry.rxBytes = reader.nextLong();
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entry.rxPackets = reader.nextLong();
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entry.txBytes = reader.nextLong();
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entry.txPackets = reader.nextLong();
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// fold in active numbers, but only when active
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if (active) {
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entry.rxBytes += reader.nextLong();
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entry.rxPackets += reader.nextLong();
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entry.txBytes += reader.nextLong();
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entry.txPackets += reader.nextLong();
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}
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stats.addValues(entry);
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reader.finishLine();
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}
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} catch (NullPointerException|NumberFormatException e) {
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throw protocolExceptionWithCause("problem parsing stats", e);
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} finally {
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IoUtils.closeQuietly(reader);
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StrictMode.setThreadPolicy(savedPolicy);
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}
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return stats;
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}
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/**
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* Parse and return interface-level summary {@link NetworkStats}. Designed
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* to return only IP layer traffic. Values monotonically increase since
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* device boot, and may include details about inactive interfaces.
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*
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* @throws IllegalStateException when problem parsing stats.
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*/
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public NetworkStats readNetworkStatsSummaryXt() throws IOException {
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// Return xt_bpf stats if qtaguid module is replaced.
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if (mUseBpfStats)
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return readBpfNetworkStatsDev();
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final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads();
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// return null when kernel doesn't support
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if (!mStatsXtIfaceFmt.exists()) return null;
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final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 6);
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final NetworkStats.Entry entry = new NetworkStats.Entry();
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ProcFileReader reader = null;
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try {
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// open and consume header line
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reader = new ProcFileReader(new FileInputStream(mStatsXtIfaceFmt));
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reader.finishLine();
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while (reader.hasMoreData()) {
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entry.iface = reader.nextString();
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entry.uid = UID_ALL;
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entry.set = SET_ALL;
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entry.tag = TAG_NONE;
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entry.rxBytes = reader.nextLong();
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entry.rxPackets = reader.nextLong();
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entry.txBytes = reader.nextLong();
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entry.txPackets = reader.nextLong();
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stats.addValues(entry);
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reader.finishLine();
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}
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} catch (NullPointerException|NumberFormatException e) {
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throw protocolExceptionWithCause("problem parsing stats", e);
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} finally {
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IoUtils.closeQuietly(reader);
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StrictMode.setThreadPolicy(savedPolicy);
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}
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return stats;
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}
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/**
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* @deprecated Use NetworkStatsService#getDetailedUidStats which also accounts for
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* VPN traffic
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*/
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@Deprecated
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public NetworkStats readNetworkStatsDetail() throws IOException {
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return readNetworkStatsDetail(UID_ALL, null, TAG_ALL, null);
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}
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public NetworkStats readNetworkStatsDetail(int limitUid, String[] limitIfaces, int limitTag,
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NetworkStats lastStats) throws IOException {
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final NetworkStats stats =
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readNetworkStatsDetailInternal(limitUid, limitIfaces, limitTag, lastStats);
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// No locking here: apply464xlatAdjustments behaves fine with an add-only ConcurrentHashMap.
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// TODO: remove this and only apply adjustments in NetworkStatsService.
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stats.apply464xlatAdjustments(sStackedIfaces, mUseBpfStats);
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return stats;
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}
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// TODO: delete the lastStats parameter
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private NetworkStats readNetworkStatsDetailInternal(int limitUid, String[] limitIfaces,
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int limitTag, NetworkStats lastStats) throws IOException {
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if (USE_NATIVE_PARSING) {
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final NetworkStats stats;
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if (lastStats != null) {
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stats = lastStats;
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stats.setElapsedRealtime(SystemClock.elapsedRealtime());
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} else {
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stats = new NetworkStats(SystemClock.elapsedRealtime(), -1);
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}
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if (mUseBpfStats) {
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if (nativeReadNetworkStatsDetail(stats, mStatsXtUid.getAbsolutePath(), UID_ALL,
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null, TAG_ALL, mUseBpfStats) != 0) {
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throw new IOException("Failed to parse network stats");
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}
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mPersistSnapshot.setElapsedRealtime(stats.getElapsedRealtime());
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mPersistSnapshot.combineAllValues(stats);
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NetworkStats result = mPersistSnapshot.clone();
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result.filter(limitUid, limitIfaces, limitTag);
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return result;
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} else {
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if (nativeReadNetworkStatsDetail(stats, mStatsXtUid.getAbsolutePath(), limitUid,
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limitIfaces, limitTag, mUseBpfStats) != 0) {
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throw new IOException("Failed to parse network stats");
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}
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if (SANITY_CHECK_NATIVE) {
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final NetworkStats javaStats = javaReadNetworkStatsDetail(mStatsXtUid, limitUid,
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limitIfaces, limitTag);
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assertEquals(javaStats, stats);
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}
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return stats;
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}
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} else {
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return javaReadNetworkStatsDetail(mStatsXtUid, limitUid, limitIfaces, limitTag);
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}
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}
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/**
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* Parse and return {@link NetworkStats} with UID-level details. Values are
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* expected to monotonically increase since device boot.
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*/
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@VisibleForTesting
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public static NetworkStats javaReadNetworkStatsDetail(File detailPath, int limitUid,
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String[] limitIfaces, int limitTag)
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throws IOException {
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final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads();
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final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 24);
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final NetworkStats.Entry entry = new NetworkStats.Entry();
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int idx = 1;
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int lastIdx = 1;
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ProcFileReader reader = null;
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try {
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// open and consume header line
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reader = new ProcFileReader(new FileInputStream(detailPath));
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reader.finishLine();
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while (reader.hasMoreData()) {
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idx = reader.nextInt();
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if (idx != lastIdx + 1) {
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throw new ProtocolException(
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"inconsistent idx=" + idx + " after lastIdx=" + lastIdx);
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}
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lastIdx = idx;
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entry.iface = reader.nextString();
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entry.tag = kernelToTag(reader.nextString());
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entry.uid = reader.nextInt();
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entry.set = reader.nextInt();
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entry.rxBytes = reader.nextLong();
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entry.rxPackets = reader.nextLong();
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entry.txBytes = reader.nextLong();
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entry.txPackets = reader.nextLong();
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if ((limitIfaces == null || ArrayUtils.contains(limitIfaces, entry.iface))
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&& (limitUid == UID_ALL || limitUid == entry.uid)
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&& (limitTag == TAG_ALL || limitTag == entry.tag)) {
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stats.addValues(entry);
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}
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reader.finishLine();
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}
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} catch (NullPointerException|NumberFormatException e) {
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throw protocolExceptionWithCause("problem parsing idx " + idx, e);
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} finally {
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IoUtils.closeQuietly(reader);
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StrictMode.setThreadPolicy(savedPolicy);
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}
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return stats;
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}
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public void assertEquals(NetworkStats expected, NetworkStats actual) {
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if (expected.size() != actual.size()) {
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throw new AssertionError(
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"Expected size " + expected.size() + ", actual size " + actual.size());
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}
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NetworkStats.Entry expectedRow = null;
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NetworkStats.Entry actualRow = null;
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for (int i = 0; i < expected.size(); i++) {
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expectedRow = expected.getValues(i, expectedRow);
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actualRow = actual.getValues(i, actualRow);
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if (!expectedRow.equals(actualRow)) {
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throw new AssertionError(
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"Expected row " + i + ": " + expectedRow + ", actual row " + actualRow);
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}
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}
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}
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/**
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* Parse statistics from file into given {@link NetworkStats} object. Values
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* are expected to monotonically increase since device boot.
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*/
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@VisibleForTesting
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public static native int nativeReadNetworkStatsDetail(NetworkStats stats, String path,
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int limitUid, String[] limitIfaces, int limitTag, boolean useBpfStats);
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@VisibleForTesting
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public static native int nativeReadNetworkStatsDev(NetworkStats stats);
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private static ProtocolException protocolExceptionWithCause(String message, Throwable cause) {
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ProtocolException pe = new ProtocolException(message);
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pe.initCause(cause);
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return pe;
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}
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}
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@@ -129,7 +129,6 @@ import android.util.proto.ProtoOutputStream;
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import com.android.internal.annotations.GuardedBy;
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import com.android.internal.annotations.VisibleForTesting;
|
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import com.android.internal.net.NetworkStatsFactory;
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import com.android.internal.net.VpnInfo;
|
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import com.android.internal.util.ArrayUtils;
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import com.android.internal.util.DumpUtils;
|
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|
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361
services/core/jni/com_android_server_net_NetworkStatsFactory.cpp
Normal file
361
services/core/jni/com_android_server_net_NetworkStatsFactory.cpp
Normal file
@@ -0,0 +1,361 @@
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/*
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||||
* Copyright (C) 2013 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.
|
||||
*/
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||||
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||||
#define LOG_TAG "NetworkStats"
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||||
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||||
#include <errno.h>
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#include <inttypes.h>
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#include <sys/stat.h>
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||||
#include <sys/types.h>
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|
||||
#include <jni.h>
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||||
|
||||
#include <nativehelper/JNIHelp.h>
|
||||
#include <nativehelper/ScopedUtfChars.h>
|
||||
#include <nativehelper/ScopedLocalRef.h>
|
||||
#include <nativehelper/ScopedPrimitiveArray.h>
|
||||
|
||||
#include <utils/Log.h>
|
||||
#include <utils/misc.h>
|
||||
|
||||
#include "android-base/unique_fd.h"
|
||||
#include "bpf/BpfUtils.h"
|
||||
#include "netdbpf/BpfNetworkStats.h"
|
||||
|
||||
using android::bpf::parseBpfNetworkStatsDetail;
|
||||
using android::bpf::stats_line;
|
||||
|
||||
namespace android {
|
||||
|
||||
static jclass gStringClass;
|
||||
|
||||
static struct {
|
||||
jfieldID size;
|
||||
jfieldID capacity;
|
||||
jfieldID iface;
|
||||
jfieldID uid;
|
||||
jfieldID set;
|
||||
jfieldID tag;
|
||||
jfieldID metered;
|
||||
jfieldID roaming;
|
||||
jfieldID defaultNetwork;
|
||||
jfieldID rxBytes;
|
||||
jfieldID rxPackets;
|
||||
jfieldID txBytes;
|
||||
jfieldID txPackets;
|
||||
jfieldID operations;
|
||||
} gNetworkStatsClassInfo;
|
||||
|
||||
static jobjectArray get_string_array(JNIEnv* env, jobject obj, jfieldID field, int size, bool grow)
|
||||
{
|
||||
if (!grow) {
|
||||
jobjectArray array = (jobjectArray)env->GetObjectField(obj, field);
|
||||
if (array != NULL) {
|
||||
return array;
|
||||
}
|
||||
}
|
||||
return env->NewObjectArray(size, gStringClass, NULL);
|
||||
}
|
||||
|
||||
static jintArray get_int_array(JNIEnv* env, jobject obj, jfieldID field, int size, bool grow)
|
||||
{
|
||||
if (!grow) {
|
||||
jintArray array = (jintArray)env->GetObjectField(obj, field);
|
||||
if (array != NULL) {
|
||||
return array;
|
||||
}
|
||||
}
|
||||
return env->NewIntArray(size);
|
||||
}
|
||||
|
||||
static jlongArray get_long_array(JNIEnv* env, jobject obj, jfieldID field, int size, bool grow)
|
||||
{
|
||||
if (!grow) {
|
||||
jlongArray array = (jlongArray)env->GetObjectField(obj, field);
|
||||
if (array != NULL) {
|
||||
return array;
|
||||
}
|
||||
}
|
||||
return env->NewLongArray(size);
|
||||
}
|
||||
|
||||
static int legacyReadNetworkStatsDetail(std::vector<stats_line>* lines,
|
||||
const std::vector<std::string>& limitIfaces,
|
||||
int limitTag, int limitUid, const char* path) {
|
||||
FILE* fp = fopen(path, "re");
|
||||
if (fp == NULL) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
int lastIdx = 1;
|
||||
int idx;
|
||||
char buffer[384];
|
||||
while (fgets(buffer, sizeof(buffer), fp) != NULL) {
|
||||
stats_line s;
|
||||
int64_t rawTag;
|
||||
char* pos = buffer;
|
||||
char* endPos;
|
||||
// First field is the index.
|
||||
idx = (int)strtol(pos, &endPos, 10);
|
||||
//ALOGI("Index #%d: %s", idx, buffer);
|
||||
if (pos == endPos) {
|
||||
// Skip lines that don't start with in index. In particular,
|
||||
// this will skip the initial header line.
|
||||
continue;
|
||||
}
|
||||
if (idx != lastIdx + 1) {
|
||||
ALOGE("inconsistent idx=%d after lastIdx=%d: %s", idx, lastIdx, buffer);
|
||||
fclose(fp);
|
||||
return -1;
|
||||
}
|
||||
lastIdx = idx;
|
||||
pos = endPos;
|
||||
// Skip whitespace.
|
||||
while (*pos == ' ') {
|
||||
pos++;
|
||||
}
|
||||
// Next field is iface.
|
||||
int ifaceIdx = 0;
|
||||
while (*pos != ' ' && *pos != 0 && ifaceIdx < (int)(sizeof(s.iface)-1)) {
|
||||
s.iface[ifaceIdx] = *pos;
|
||||
ifaceIdx++;
|
||||
pos++;
|
||||
}
|
||||
if (*pos != ' ') {
|
||||
ALOGE("bad iface: %s", buffer);
|
||||
fclose(fp);
|
||||
return -1;
|
||||
}
|
||||
s.iface[ifaceIdx] = 0;
|
||||
if (limitIfaces.size() > 0) {
|
||||
// Is this an iface the caller is interested in?
|
||||
int i = 0;
|
||||
while (i < (int)limitIfaces.size()) {
|
||||
if (limitIfaces[i] == s.iface) {
|
||||
break;
|
||||
}
|
||||
i++;
|
||||
}
|
||||
if (i >= (int)limitIfaces.size()) {
|
||||
// Nothing matched; skip this line.
|
||||
//ALOGI("skipping due to iface: %s", buffer);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
// Ignore whitespace
|
||||
while (*pos == ' ') pos++;
|
||||
|
||||
// Find end of tag field
|
||||
endPos = pos;
|
||||
while (*endPos != ' ') endPos++;
|
||||
|
||||
// Three digit field is always 0x0, otherwise parse
|
||||
if (endPos - pos == 3) {
|
||||
rawTag = 0;
|
||||
} else {
|
||||
if (sscanf(pos, "%" PRIx64, &rawTag) != 1) {
|
||||
ALOGE("bad tag: %s", pos);
|
||||
fclose(fp);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
s.tag = rawTag >> 32;
|
||||
if (limitTag != -1 && s.tag != static_cast<uint32_t>(limitTag)) {
|
||||
//ALOGI("skipping due to tag: %s", buffer);
|
||||
continue;
|
||||
}
|
||||
pos = endPos;
|
||||
|
||||
// Ignore whitespace
|
||||
while (*pos == ' ') pos++;
|
||||
|
||||
// Parse remaining fields.
|
||||
if (sscanf(pos, "%u %u %" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64,
|
||||
&s.uid, &s.set, &s.rxBytes, &s.rxPackets,
|
||||
&s.txBytes, &s.txPackets) == 6) {
|
||||
if (limitUid != -1 && static_cast<uint32_t>(limitUid) != s.uid) {
|
||||
//ALOGI("skipping due to uid: %s", buffer);
|
||||
continue;
|
||||
}
|
||||
lines->push_back(s);
|
||||
} else {
|
||||
//ALOGI("skipping due to bad remaining fields: %s", pos);
|
||||
}
|
||||
}
|
||||
|
||||
if (fclose(fp) != 0) {
|
||||
ALOGE("Failed to close netstats file");
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int statsLinesToNetworkStats(JNIEnv* env, jclass clazz, jobject stats,
|
||||
std::vector<stats_line>& lines) {
|
||||
int size = lines.size();
|
||||
|
||||
bool grow = size > env->GetIntField(stats, gNetworkStatsClassInfo.capacity);
|
||||
|
||||
ScopedLocalRef<jobjectArray> iface(env, get_string_array(env, stats,
|
||||
gNetworkStatsClassInfo.iface, size, grow));
|
||||
if (iface.get() == NULL) return -1;
|
||||
ScopedIntArrayRW uid(env, get_int_array(env, stats,
|
||||
gNetworkStatsClassInfo.uid, size, grow));
|
||||
if (uid.get() == NULL) return -1;
|
||||
ScopedIntArrayRW set(env, get_int_array(env, stats,
|
||||
gNetworkStatsClassInfo.set, size, grow));
|
||||
if (set.get() == NULL) return -1;
|
||||
ScopedIntArrayRW tag(env, get_int_array(env, stats,
|
||||
gNetworkStatsClassInfo.tag, size, grow));
|
||||
if (tag.get() == NULL) return -1;
|
||||
ScopedIntArrayRW metered(env, get_int_array(env, stats,
|
||||
gNetworkStatsClassInfo.metered, size, grow));
|
||||
if (metered.get() == NULL) return -1;
|
||||
ScopedIntArrayRW roaming(env, get_int_array(env, stats,
|
||||
gNetworkStatsClassInfo.roaming, size, grow));
|
||||
if (roaming.get() == NULL) return -1;
|
||||
ScopedIntArrayRW defaultNetwork(env, get_int_array(env, stats,
|
||||
gNetworkStatsClassInfo.defaultNetwork, size, grow));
|
||||
if (defaultNetwork.get() == NULL) return -1;
|
||||
ScopedLongArrayRW rxBytes(env, get_long_array(env, stats,
|
||||
gNetworkStatsClassInfo.rxBytes, size, grow));
|
||||
if (rxBytes.get() == NULL) return -1;
|
||||
ScopedLongArrayRW rxPackets(env, get_long_array(env, stats,
|
||||
gNetworkStatsClassInfo.rxPackets, size, grow));
|
||||
if (rxPackets.get() == NULL) return -1;
|
||||
ScopedLongArrayRW txBytes(env, get_long_array(env, stats,
|
||||
gNetworkStatsClassInfo.txBytes, size, grow));
|
||||
if (txBytes.get() == NULL) return -1;
|
||||
ScopedLongArrayRW txPackets(env, get_long_array(env, stats,
|
||||
gNetworkStatsClassInfo.txPackets, size, grow));
|
||||
if (txPackets.get() == NULL) return -1;
|
||||
ScopedLongArrayRW operations(env, get_long_array(env, stats,
|
||||
gNetworkStatsClassInfo.operations, size, grow));
|
||||
if (operations.get() == NULL) return -1;
|
||||
|
||||
for (int i = 0; i < size; i++) {
|
||||
ScopedLocalRef<jstring> ifaceString(env, env->NewStringUTF(lines[i].iface));
|
||||
env->SetObjectArrayElement(iface.get(), i, ifaceString.get());
|
||||
|
||||
uid[i] = lines[i].uid;
|
||||
set[i] = lines[i].set;
|
||||
tag[i] = lines[i].tag;
|
||||
// Metered, roaming and defaultNetwork are populated in Java-land.
|
||||
rxBytes[i] = lines[i].rxBytes;
|
||||
rxPackets[i] = lines[i].rxPackets;
|
||||
txBytes[i] = lines[i].txBytes;
|
||||
txPackets[i] = lines[i].txPackets;
|
||||
}
|
||||
|
||||
env->SetIntField(stats, gNetworkStatsClassInfo.size, size);
|
||||
if (grow) {
|
||||
env->SetIntField(stats, gNetworkStatsClassInfo.capacity, size);
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.iface, iface.get());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.uid, uid.getJavaArray());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.set, set.getJavaArray());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.tag, tag.getJavaArray());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.metered, metered.getJavaArray());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.roaming, roaming.getJavaArray());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.defaultNetwork,
|
||||
defaultNetwork.getJavaArray());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.rxBytes, rxBytes.getJavaArray());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.rxPackets, rxPackets.getJavaArray());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.txBytes, txBytes.getJavaArray());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.txPackets, txPackets.getJavaArray());
|
||||
env->SetObjectField(stats, gNetworkStatsClassInfo.operations, operations.getJavaArray());
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int readNetworkStatsDetail(JNIEnv* env, jclass clazz, jobject stats, jstring path,
|
||||
jint limitUid, jobjectArray limitIfacesObj, jint limitTag,
|
||||
jboolean useBpfStats) {
|
||||
|
||||
std::vector<std::string> limitIfaces;
|
||||
if (limitIfacesObj != NULL && env->GetArrayLength(limitIfacesObj) > 0) {
|
||||
int num = env->GetArrayLength(limitIfacesObj);
|
||||
for (int i = 0; i < num; i++) {
|
||||
jstring string = (jstring)env->GetObjectArrayElement(limitIfacesObj, i);
|
||||
ScopedUtfChars string8(env, string);
|
||||
if (string8.c_str() != NULL) {
|
||||
limitIfaces.push_back(std::string(string8.c_str()));
|
||||
}
|
||||
}
|
||||
}
|
||||
std::vector<stats_line> lines;
|
||||
|
||||
|
||||
if (useBpfStats) {
|
||||
if (parseBpfNetworkStatsDetail(&lines, limitIfaces, limitTag, limitUid) < 0)
|
||||
return -1;
|
||||
} else {
|
||||
ScopedUtfChars path8(env, path);
|
||||
if (path8.c_str() == NULL) {
|
||||
ALOGE("the qtaguid legacy path is invalid: %s", path8.c_str());
|
||||
return -1;
|
||||
}
|
||||
if (legacyReadNetworkStatsDetail(&lines, limitIfaces, limitTag,
|
||||
limitUid, path8.c_str()) < 0)
|
||||
return -1;
|
||||
}
|
||||
|
||||
return statsLinesToNetworkStats(env, clazz, stats, lines);
|
||||
}
|
||||
|
||||
static int readNetworkStatsDev(JNIEnv* env, jclass clazz, jobject stats) {
|
||||
std::vector<stats_line> lines;
|
||||
|
||||
if (parseBpfNetworkStatsDev(&lines) < 0)
|
||||
return -1;
|
||||
|
||||
return statsLinesToNetworkStats(env, clazz, stats, lines);
|
||||
}
|
||||
|
||||
static const JNINativeMethod gMethods[] = {
|
||||
{ "nativeReadNetworkStatsDetail",
|
||||
"(Landroid/net/NetworkStats;Ljava/lang/String;I[Ljava/lang/String;IZ)I",
|
||||
(void*) readNetworkStatsDetail },
|
||||
{ "nativeReadNetworkStatsDev", "(Landroid/net/NetworkStats;)I",
|
||||
(void*) readNetworkStatsDev },
|
||||
};
|
||||
|
||||
int register_android_server_net_NetworkStatsFactory(JNIEnv* env) {
|
||||
int err = jniRegisterNativeMethods(env, "com/android/server/net/NetworkStatsFactory", gMethods,
|
||||
NELEM(gMethods));
|
||||
gStringClass = env->FindClass("java/lang/String");
|
||||
gStringClass = static_cast<jclass>(env->NewGlobalRef(gStringClass));
|
||||
|
||||
jclass clazz = env->FindClass("android/net/NetworkStats");
|
||||
gNetworkStatsClassInfo.size = env->GetFieldID(clazz, "size", "I");
|
||||
gNetworkStatsClassInfo.capacity = env->GetFieldID(clazz, "capacity", "I");
|
||||
gNetworkStatsClassInfo.iface = env->GetFieldID(clazz, "iface", "[Ljava/lang/String;");
|
||||
gNetworkStatsClassInfo.uid = env->GetFieldID(clazz, "uid", "[I");
|
||||
gNetworkStatsClassInfo.set = env->GetFieldID(clazz, "set", "[I");
|
||||
gNetworkStatsClassInfo.tag = env->GetFieldID(clazz, "tag", "[I");
|
||||
gNetworkStatsClassInfo.metered = env->GetFieldID(clazz, "metered", "[I");
|
||||
gNetworkStatsClassInfo.roaming = env->GetFieldID(clazz, "roaming", "[I");
|
||||
gNetworkStatsClassInfo.defaultNetwork = env->GetFieldID(clazz, "defaultNetwork", "[I");
|
||||
gNetworkStatsClassInfo.rxBytes = env->GetFieldID(clazz, "rxBytes", "[J");
|
||||
gNetworkStatsClassInfo.rxPackets = env->GetFieldID(clazz, "rxPackets", "[J");
|
||||
gNetworkStatsClassInfo.txBytes = env->GetFieldID(clazz, "txBytes", "[J");
|
||||
gNetworkStatsClassInfo.txPackets = env->GetFieldID(clazz, "txPackets", "[J");
|
||||
gNetworkStatsClassInfo.operations = env->GetFieldID(clazz, "operations", "[J");
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user