NetworkStatsFactory.java revision 453dafa66372308fd5200f1749a2ef8e3e1846e9
11059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey/* 21059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * Copyright (C) 2011 The Android Open Source Project 31059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * 41059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * Licensed under the Apache License, Version 2.0 (the "License"); 51059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * you may not use this file except in compliance with the License. 61059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * You may obtain a copy of the License at 71059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * 81059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * http://www.apache.org/licenses/LICENSE-2.0 91059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * 101059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * Unless required by applicable law or agreed to in writing, software 111059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * distributed under the License is distributed on an "AS IS" BASIS, 121059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 131059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * See the License for the specific language governing permissions and 141059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * limitations under the License. 151059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey */ 161059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 171059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeypackage com.android.internal.net; 181059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 191059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport static android.net.NetworkStats.SET_DEFAULT; 201059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport static android.net.NetworkStats.TAG_NONE; 211059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport static android.net.NetworkStats.UID_ALL; 221059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport static com.android.server.NetworkManagementSocketTagger.kernelToTag; 231059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 241059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport android.net.NetworkStats; 25453dafa66372308fd5200f1749a2ef8e3e1846e9Jeff Sharkeyimport android.os.StrictMode; 261059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport android.os.SystemClock; 271059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport android.util.Slog; 281059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 29163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkeyimport com.android.internal.util.ProcFileReader; 301059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport com.google.android.collect.Lists; 311059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport com.google.android.collect.Maps; 321059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport com.google.android.collect.Sets; 331059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 341059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport java.io.BufferedReader; 351059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport java.io.File; 36163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkeyimport java.io.FileInputStream; 371059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport java.io.FileReader; 381059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport java.io.IOException; 391059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport java.util.ArrayList; 401059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport java.util.HashMap; 411059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport java.util.HashSet; 421059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport java.util.StringTokenizer; 431059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 441059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeyimport libcore.io.IoUtils; 451059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 461059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey/** 471059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * Creates {@link NetworkStats} instances by parsing various {@code /proc/} 481059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * files as needed. 491059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey */ 501059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkeypublic class NetworkStatsFactory { 511059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String TAG = "NetworkStatsFactory"; 521059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 531059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey // TODO: consider moving parsing to native code 541059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 551059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** Path to {@code /proc/net/dev}. */ 561059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey @Deprecated 571059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private final File mStatsIface; 581059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** Path to {@code /proc/net/xt_qtaguid/iface_stat}. */ 591059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey @Deprecated 601059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private final File mStatsXtIface; 611059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** Path to {@code /proc/net/xt_qtaguid/iface_stat_all}. */ 621059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private final File mStatsXtIfaceAll; 631059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** Path to {@code /proc/net/xt_qtaguid/stats}. */ 641059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private final File mStatsXtUid; 651059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 661059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** {@link #mStatsXtUid} and {@link #mStatsXtIfaceAll} headers. */ 671059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_IDX = "idx"; 681059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_IFACE = "iface"; 691059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_ACTIVE = "active"; 701059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_UID = "uid_tag_int"; 711059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_COUNTER_SET = "cnt_set"; 721059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_TAG_HEX = "acct_tag_hex"; 731059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_SNAP_RX_BYTES = "snap_rx_bytes"; 741059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_SNAP_RX_PACKETS = "snap_rx_packets"; 751059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_SNAP_TX_BYTES = "snap_tx_bytes"; 761059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_SNAP_TX_PACKETS = "snap_tx_packets"; 771059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_RX_BYTES = "rx_bytes"; 781059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_RX_PACKETS = "rx_packets"; 791059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_TX_BYTES = "tx_bytes"; 801059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static final String KEY_TX_PACKETS = "tx_packets"; 811059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 821059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey public NetworkStatsFactory() { 831059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey this(new File("/proc/")); 841059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 851059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 861059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey // @VisibleForTesting 871059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey public NetworkStatsFactory(File procRoot) { 881059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey mStatsIface = new File(procRoot, "net/dev"); 891059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey mStatsXtUid = new File(procRoot, "net/xt_qtaguid/stats"); 901059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey mStatsXtIface = new File(procRoot, "net/xt_qtaguid/iface_stat"); 911059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey mStatsXtIfaceAll = new File(procRoot, "net/xt_qtaguid/iface_stat_all"); 921059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 931059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 941059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** 951059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * Parse and return interface-level summary {@link NetworkStats}. Values 961059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * monotonically increase since device boot, and may include details about 971059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * inactive interfaces. 981059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * 991059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * @throws IllegalStateException when problem parsing stats. 1001059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey */ 1011059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey public NetworkStats readNetworkStatsSummary() throws IllegalStateException { 1021059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey if (mStatsXtIfaceAll.exists()) { 1031059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return readNetworkStatsSummarySingleFile(); 1041059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } else { 1051059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return readNetworkStatsSummaryMultipleFiles(); 1061059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 1071059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 1081059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1091059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private NetworkStats readNetworkStatsSummarySingleFile() { 110453dafa66372308fd5200f1749a2ef8e3e1846e9Jeff Sharkey final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads(); 111453dafa66372308fd5200f1749a2ef8e3e1846e9Jeff Sharkey 1121059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 6); 1131059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final NetworkStats.Entry entry = new NetworkStats.Entry(); 1141059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 115163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey // TODO: transition to ProcFileReader 1161059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey // TODO: read directly from proc once headers are added 1171059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final ArrayList<String> keys = Lists.newArrayList(KEY_IFACE, KEY_ACTIVE, KEY_SNAP_RX_BYTES, 1181059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey KEY_SNAP_RX_PACKETS, KEY_SNAP_TX_BYTES, KEY_SNAP_TX_PACKETS, KEY_RX_BYTES, 1191059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey KEY_RX_PACKETS, KEY_TX_BYTES, KEY_TX_PACKETS); 1201059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final ArrayList<String> values = Lists.newArrayList(); 1211059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final HashMap<String, String> parsed = Maps.newHashMap(); 1221059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1231059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey BufferedReader reader = null; 1241059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey try { 1251059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey reader = new BufferedReader(new FileReader(mStatsXtIfaceAll)); 1261059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1271059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey String line; 1281059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey while ((line = reader.readLine()) != null) { 1291059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey splitLine(line, values); 1301059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey parseLine(keys, values, parsed); 1311059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1321059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.iface = parsed.get(KEY_IFACE); 1331059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.uid = UID_ALL; 1341059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.set = SET_DEFAULT; 1351059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.tag = TAG_NONE; 1361059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1371059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey // always include snapshot values 1381059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.rxBytes = getParsedLong(parsed, KEY_SNAP_RX_BYTES); 1391059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.rxPackets = getParsedLong(parsed, KEY_SNAP_RX_PACKETS); 1401059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.txBytes = getParsedLong(parsed, KEY_SNAP_TX_BYTES); 1411059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.txPackets = getParsedLong(parsed, KEY_SNAP_TX_PACKETS); 1421059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1431059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey // fold in active numbers, but only when active 1441059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final boolean active = getParsedInt(parsed, KEY_ACTIVE) != 0; 1451059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey if (active) { 1461059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.rxBytes += getParsedLong(parsed, KEY_RX_BYTES); 1471059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.rxPackets += getParsedLong(parsed, KEY_RX_PACKETS); 1481059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.txBytes += getParsedLong(parsed, KEY_TX_BYTES); 1491059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.txPackets += getParsedLong(parsed, KEY_TX_PACKETS); 1501059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 1511059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1521059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey stats.addValues(entry); 1531059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 1541059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (NullPointerException e) { 1551059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey throw new IllegalStateException("problem parsing stats: " + e); 1561059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (NumberFormatException e) { 1571059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey throw new IllegalStateException("problem parsing stats: " + e); 1581059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (IOException e) { 1591059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey throw new IllegalStateException("problem parsing stats: " + e); 1601059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } finally { 1611059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey IoUtils.closeQuietly(reader); 162453dafa66372308fd5200f1749a2ef8e3e1846e9Jeff Sharkey StrictMode.setThreadPolicy(savedPolicy); 1631059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 1641059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return stats; 1651059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 1661059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1671059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** 1681059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * @deprecated remove once {@code iface_stat_all} is merged to all kernels. 1691059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey */ 1701059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey @Deprecated 1711059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private NetworkStats readNetworkStatsSummaryMultipleFiles() { 172453dafa66372308fd5200f1749a2ef8e3e1846e9Jeff Sharkey final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads(); 173453dafa66372308fd5200f1749a2ef8e3e1846e9Jeff Sharkey 1741059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 6); 1751059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final NetworkStats.Entry entry = new NetworkStats.Entry(); 1761059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1771059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final HashSet<String> knownIfaces = Sets.newHashSet(); 1781059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final HashSet<String> activeIfaces = Sets.newHashSet(); 1791059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1801059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey // collect any historical stats and active state 1811059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey for (String iface : fileListWithoutNull(mStatsXtIface)) { 1821059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final File ifacePath = new File(mStatsXtIface, iface); 1831059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1841059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final long active = readSingleLongFromFile(new File(ifacePath, "active")); 1851059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey if (active == 1) { 1861059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey knownIfaces.add(iface); 1871059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey activeIfaces.add(iface); 1881059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } else if (active == 0) { 1891059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey knownIfaces.add(iface); 1901059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } else { 1911059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey continue; 1921059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 1931059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 1941059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.iface = iface; 1951059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.uid = UID_ALL; 1961059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.set = SET_DEFAULT; 1971059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.tag = TAG_NONE; 1981059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.rxBytes = readSingleLongFromFile(new File(ifacePath, "rx_bytes")); 1991059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.rxPackets = readSingleLongFromFile(new File(ifacePath, "rx_packets")); 2001059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.txBytes = readSingleLongFromFile(new File(ifacePath, "tx_bytes")); 2011059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.txPackets = readSingleLongFromFile(new File(ifacePath, "tx_packets")); 2021059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2031059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey stats.addValues(entry); 2041059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 2051059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2061059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final ArrayList<String> values = Lists.newArrayList(); 2071059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2081059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey BufferedReader reader = null; 2091059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey try { 2101059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey reader = new BufferedReader(new FileReader(mStatsIface)); 2111059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2121059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey // skip first two header lines 2131059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey reader.readLine(); 2141059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey reader.readLine(); 2151059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2161059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey // parse remaining lines 2171059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey String line; 2181059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey while ((line = reader.readLine()) != null) { 2191059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey splitLine(line, values); 2201059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2211059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey try { 2221059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.iface = values.get(0); 2231059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.uid = UID_ALL; 2241059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.set = SET_DEFAULT; 2251059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.tag = TAG_NONE; 2261059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.rxBytes = Long.parseLong(values.get(1)); 2271059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.rxPackets = Long.parseLong(values.get(2)); 2281059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.txBytes = Long.parseLong(values.get(9)); 2291059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey entry.txPackets = Long.parseLong(values.get(10)); 2301059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2311059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey if (activeIfaces.contains(entry.iface)) { 2321059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey // combine stats when iface is active 2331059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey stats.combineValues(entry); 2341059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } else if (!knownIfaces.contains(entry.iface)) { 2351059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey // add stats when iface is unknown 2361059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey stats.addValues(entry); 2371059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 2381059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (NumberFormatException e) { 2391059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey Slog.w(TAG, "problem parsing stats row '" + line + "': " + e); 2401059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 2411059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 2421059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (NullPointerException e) { 2431059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey throw new IllegalStateException("problem parsing stats: " + e); 2441059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (NumberFormatException e) { 2451059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey throw new IllegalStateException("problem parsing stats: " + e); 2461059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (IOException e) { 2471059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey throw new IllegalStateException("problem parsing stats: " + e); 2481059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } finally { 2491059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey IoUtils.closeQuietly(reader); 250453dafa66372308fd5200f1749a2ef8e3e1846e9Jeff Sharkey StrictMode.setThreadPolicy(savedPolicy); 2511059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 2521059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2531059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return stats; 2541059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 2551059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2561059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey public NetworkStats readNetworkStatsDetail() { 2571059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return readNetworkStatsDetail(UID_ALL); 2581059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 2591059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2601059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** 2611059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * Parse and return {@link NetworkStats} with UID-level details. Values 2621059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * monotonically increase since device boot. 2631059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * 2641059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * @throws IllegalStateException when problem parsing stats. 2651059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey */ 2661059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey public NetworkStats readNetworkStatsDetail(int limitUid) throws IllegalStateException { 267453dafa66372308fd5200f1749a2ef8e3e1846e9Jeff Sharkey final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads(); 268453dafa66372308fd5200f1749a2ef8e3e1846e9Jeff Sharkey 2691059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 24); 2701059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final NetworkStats.Entry entry = new NetworkStats.Entry(); 2711059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 272163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey int idx = 1; 273163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey int lastIdx = 1; 2741059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 275163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey ProcFileReader reader = null; 2761059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey try { 277163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey // open and consume header line 278163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey reader = new ProcFileReader(new FileInputStream(mStatsXtUid)); 279163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey reader.finishLine(); 2801059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 281163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey while (reader.hasMoreData()) { 282163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey idx = reader.nextInt(); 2831059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey if (idx != lastIdx + 1) { 2841059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey throw new IllegalStateException( 2851059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey "inconsistent idx=" + idx + " after lastIdx=" + lastIdx); 2861059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 2871059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey lastIdx = idx; 2881059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 289163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey entry.iface = reader.nextString(); 290163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey entry.tag = kernelToTag(reader.nextString()); 291163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey entry.uid = reader.nextInt(); 292163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey entry.set = reader.nextInt(); 293163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey entry.rxBytes = reader.nextLong(); 294163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey entry.rxPackets = reader.nextLong(); 295163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey entry.txBytes = reader.nextLong(); 296163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey entry.txPackets = reader.nextLong(); 2971059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 2981059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey if (limitUid == UID_ALL || limitUid == entry.uid) { 2991059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey stats.addValues(entry); 3001059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 301163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey 302163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey reader.finishLine(); 3031059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3041059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (NullPointerException e) { 305163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey throw new IllegalStateException("problem parsing idx " + idx, e); 3061059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (NumberFormatException e) { 307163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey throw new IllegalStateException("problem parsing idx " + idx, e); 3081059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (IOException e) { 309163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey throw new IllegalStateException("problem parsing idx " + idx, e); 3101059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } finally { 3111059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey IoUtils.closeQuietly(reader); 312453dafa66372308fd5200f1749a2ef8e3e1846e9Jeff Sharkey StrictMode.setThreadPolicy(savedPolicy); 3131059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 314163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey 3151059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return stats; 3161059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3171059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 318163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey @Deprecated 3191059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static int getParsedInt(HashMap<String, String> parsed, String key) { 3201059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final String value = parsed.get(key); 3211059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return value != null ? Integer.parseInt(value) : 0; 3221059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3231059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 324163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey @Deprecated 3251059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static long getParsedLong(HashMap<String, String> parsed, String key) { 3261059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final String value = parsed.get(key); 3271059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return value != null ? Long.parseLong(value) : 0; 3281059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3291059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 3301059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** 3311059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * Split given line into {@link ArrayList}. 3321059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey */ 333163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey @Deprecated 3341059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static void splitLine(String line, ArrayList<String> outSplit) { 3351059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey outSplit.clear(); 3361059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 3371059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final StringTokenizer t = new StringTokenizer(line, " \t\n\r\f:"); 3381059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey while (t.hasMoreTokens()) { 3391059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey outSplit.add(t.nextToken()); 3401059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3411059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3421059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 3431059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** 3441059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * Zip the two given {@link ArrayList} as key and value pairs into 3451059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * {@link HashMap}. 3461059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey */ 347163e6443f27884a9bfcb9a48ef606dc635852c23Jeff Sharkey @Deprecated 3481059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static void parseLine( 3491059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey ArrayList<String> keys, ArrayList<String> values, HashMap<String, String> outParsed) { 3501059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey outParsed.clear(); 3511059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 3521059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final int size = Math.min(keys.size(), values.size()); 3531059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey for (int i = 0; i < size; i++) { 3541059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey outParsed.put(keys.get(i), values.get(i)); 3551059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3561059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3571059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 3581059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** 3591059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * Utility method to read a single plain-text {@link Long} from the given 3601059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * {@link File}, usually from a {@code /proc/} filesystem. 3611059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey */ 3621059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static long readSingleLongFromFile(File file) { 3631059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey try { 3641059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final byte[] buffer = IoUtils.readFileAsByteArray(file.toString()); 3651059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return Long.parseLong(new String(buffer).trim()); 3661059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (NumberFormatException e) { 3671059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return -1; 3681059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } catch (IOException e) { 3691059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return -1; 3701059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3711059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3721059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey 3731059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey /** 3741059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * Wrapper for {@link File#list()} that returns empty array instead of 3751059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey * {@code null}. 3761059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey */ 3771059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey private static String[] fileListWithoutNull(File file) { 3781059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey final String[] list = file.list(); 3791059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey return list != null ? list : new String[0]; 3801059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey } 3811059c3c30ad96a15695c1a92ae8896e078a6309fJeff Sharkey} 382