| /* |
| * Copyright (C) 2016 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.connectivity; |
| |
| import static android.net.NetworkCapabilities.MAX_TRANSPORT; |
| import static android.net.NetworkCapabilities.TRANSPORT_BLUETOOTH; |
| import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR; |
| import static android.net.NetworkCapabilities.TRANSPORT_ETHERNET; |
| import static android.net.NetworkCapabilities.TRANSPORT_LOWPAN; |
| import static android.net.NetworkCapabilities.TRANSPORT_VPN; |
| import static android.net.NetworkCapabilities.TRANSPORT_WIFI; |
| import static android.net.NetworkCapabilities.TRANSPORT_WIFI_AWARE; |
| |
| import android.net.ConnectivityManager; |
| import android.net.ConnectivityMetricsEvent; |
| import android.net.metrics.ApfProgramEvent; |
| import android.net.metrics.ApfStats; |
| import android.net.metrics.DefaultNetworkEvent; |
| import android.net.metrics.DhcpClientEvent; |
| import android.net.metrics.DhcpErrorEvent; |
| import android.net.metrics.DnsEvent; |
| import android.net.metrics.ConnectStats; |
| import android.net.metrics.IpManagerEvent; |
| import android.net.metrics.IpReachabilityEvent; |
| import android.net.metrics.NetworkEvent; |
| import android.net.metrics.RaEvent; |
| import android.net.metrics.ValidationProbeEvent; |
| import android.net.metrics.WakeupStats; |
| import android.os.Parcelable; |
| import android.util.SparseArray; |
| import android.util.SparseIntArray; |
| import com.android.server.connectivity.metrics.nano.IpConnectivityLogClass; |
| import com.android.server.connectivity.metrics.nano.IpConnectivityLogClass.IpConnectivityEvent; |
| import com.android.server.connectivity.metrics.nano.IpConnectivityLogClass.IpConnectivityLog; |
| import com.android.server.connectivity.metrics.nano.IpConnectivityLogClass.Pair; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| |
| /** {@hide} */ |
| final public class IpConnectivityEventBuilder { |
| private IpConnectivityEventBuilder() { |
| } |
| |
| public static byte[] serialize(int dropped, List<IpConnectivityEvent> events) |
| throws IOException { |
| final IpConnectivityLog log = new IpConnectivityLog(); |
| log.events = events.toArray(new IpConnectivityEvent[events.size()]); |
| log.droppedEvents = dropped; |
| if ((log.events.length > 0) || (dropped > 0)) { |
| // Only write version number if log has some information at all. |
| log.version = IpConnectivityMetrics.VERSION; |
| } |
| return IpConnectivityLog.toByteArray(log); |
| } |
| |
| public static List<IpConnectivityEvent> toProto(List<ConnectivityMetricsEvent> eventsIn) { |
| final ArrayList<IpConnectivityEvent> eventsOut = new ArrayList<>(eventsIn.size()); |
| for (ConnectivityMetricsEvent in : eventsIn) { |
| final IpConnectivityEvent out = toProto(in); |
| if (out == null) { |
| continue; |
| } |
| eventsOut.add(out); |
| } |
| return eventsOut; |
| } |
| |
| public static IpConnectivityEvent toProto(ConnectivityMetricsEvent ev) { |
| final IpConnectivityEvent out = buildEvent(ev.netId, ev.transports, ev.ifname); |
| out.timeMs = ev.timestamp; |
| if (!setEvent(out, ev.data)) { |
| return null; |
| } |
| return out; |
| } |
| |
| public static IpConnectivityEvent toProto(ConnectStats in) { |
| IpConnectivityLogClass.ConnectStatistics stats = |
| new IpConnectivityLogClass.ConnectStatistics(); |
| stats.connectCount = in.connectCount; |
| stats.connectBlockingCount = in.connectBlockingCount; |
| stats.ipv6AddrCount = in.ipv6ConnectCount; |
| stats.latenciesMs = in.latencies.toArray(); |
| stats.errnosCounters = toPairArray(in.errnos); |
| final IpConnectivityEvent out = buildEvent(in.netId, in.transports, null); |
| out.setConnectStatistics(stats); |
| return out; |
| } |
| |
| |
| public static IpConnectivityEvent toProto(DnsEvent in) { |
| IpConnectivityLogClass.DNSLookupBatch dnsLookupBatch = |
| new IpConnectivityLogClass.DNSLookupBatch(); |
| in.resize(in.eventCount); |
| dnsLookupBatch.eventTypes = bytesToInts(in.eventTypes); |
| dnsLookupBatch.returnCodes = bytesToInts(in.returnCodes); |
| dnsLookupBatch.latenciesMs = in.latenciesMs; |
| final IpConnectivityEvent out = buildEvent(in.netId, in.transports, null); |
| out.setDnsLookupBatch(dnsLookupBatch); |
| return out; |
| } |
| |
| public static IpConnectivityEvent toProto(WakeupStats in) { |
| IpConnectivityLogClass.WakeupStats wakeupStats = |
| new IpConnectivityLogClass.WakeupStats(); |
| in.updateDuration(); |
| wakeupStats.durationSec = in.durationSec; |
| wakeupStats.totalWakeups = in.totalWakeups; |
| wakeupStats.rootWakeups = in.rootWakeups; |
| wakeupStats.systemWakeups = in.systemWakeups; |
| wakeupStats.nonApplicationWakeups = in.nonApplicationWakeups; |
| wakeupStats.applicationWakeups = in.applicationWakeups; |
| wakeupStats.noUidWakeups = in.noUidWakeups; |
| wakeupStats.l2UnicastCount = in.l2UnicastCount; |
| wakeupStats.l2MulticastCount = in.l2MulticastCount; |
| wakeupStats.l2BroadcastCount = in.l2BroadcastCount; |
| wakeupStats.ethertypeCounts = toPairArray(in.ethertypes); |
| wakeupStats.ipNextHeaderCounts = toPairArray(in.ipNextHeaders); |
| final IpConnectivityEvent out = buildEvent(0, 0, in.iface); |
| out.setWakeupStats(wakeupStats); |
| return out; |
| } |
| |
| public static IpConnectivityEvent toProto(DefaultNetworkEvent in) { |
| IpConnectivityLogClass.DefaultNetworkEvent ev = |
| new IpConnectivityLogClass.DefaultNetworkEvent(); |
| ev.finalScore = in.finalScore; |
| ev.initialScore = in.initialScore; |
| ev.ipSupport = ipSupportOf(in); |
| ev.defaultNetworkDurationMs = in.durationMs; |
| ev.validationDurationMs = in.validatedMs; |
| ev.previousDefaultNetworkLinkLayer = transportsToLinkLayer(in.previousTransports); |
| final IpConnectivityEvent out = buildEvent(in.netId, in.transports, null); |
| if (in.transports == 0) { |
| // Set link layer to NONE for events representing the absence of a default network. |
| out.linkLayer = IpConnectivityLogClass.NONE; |
| } |
| out.setDefaultNetworkEvent(ev); |
| return out; |
| } |
| |
| private static IpConnectivityEvent buildEvent(int netId, long transports, String ifname) { |
| final IpConnectivityEvent ev = new IpConnectivityEvent(); |
| ev.networkId = netId; |
| ev.transports = transports; |
| if (ifname != null) { |
| ev.ifName = ifname; |
| } |
| inferLinkLayer(ev); |
| return ev; |
| } |
| |
| private static boolean setEvent(IpConnectivityEvent out, Parcelable in) { |
| if (in instanceof DhcpErrorEvent) { |
| setDhcpErrorEvent(out, (DhcpErrorEvent) in); |
| return true; |
| } |
| |
| if (in instanceof DhcpClientEvent) { |
| setDhcpClientEvent(out, (DhcpClientEvent) in); |
| return true; |
| } |
| |
| if (in instanceof IpManagerEvent) { |
| setIpManagerEvent(out, (IpManagerEvent) in); |
| return true; |
| } |
| |
| if (in instanceof IpReachabilityEvent) { |
| setIpReachabilityEvent(out, (IpReachabilityEvent) in); |
| return true; |
| } |
| |
| if (in instanceof NetworkEvent) { |
| setNetworkEvent(out, (NetworkEvent) in); |
| return true; |
| } |
| |
| if (in instanceof ValidationProbeEvent) { |
| setValidationProbeEvent(out, (ValidationProbeEvent) in); |
| return true; |
| } |
| |
| if (in instanceof ApfProgramEvent) { |
| setApfProgramEvent(out, (ApfProgramEvent) in); |
| return true; |
| } |
| |
| if (in instanceof ApfStats) { |
| setApfStats(out, (ApfStats) in); |
| return true; |
| } |
| |
| if (in instanceof RaEvent) { |
| setRaEvent(out, (RaEvent) in); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| private static void setDhcpErrorEvent(IpConnectivityEvent out, DhcpErrorEvent in) { |
| IpConnectivityLogClass.DHCPEvent dhcpEvent = new IpConnectivityLogClass.DHCPEvent(); |
| dhcpEvent.setErrorCode(in.errorCode); |
| out.setDhcpEvent(dhcpEvent); |
| } |
| |
| private static void setDhcpClientEvent(IpConnectivityEvent out, DhcpClientEvent in) { |
| IpConnectivityLogClass.DHCPEvent dhcpEvent = new IpConnectivityLogClass.DHCPEvent(); |
| dhcpEvent.setStateTransition(in.msg); |
| dhcpEvent.durationMs = in.durationMs; |
| out.setDhcpEvent(dhcpEvent); |
| } |
| |
| private static void setIpManagerEvent(IpConnectivityEvent out, IpManagerEvent in) { |
| IpConnectivityLogClass.IpProvisioningEvent ipProvisioningEvent = |
| new IpConnectivityLogClass.IpProvisioningEvent(); |
| ipProvisioningEvent.eventType = in.eventType; |
| ipProvisioningEvent.latencyMs = (int) in.durationMs; |
| out.setIpProvisioningEvent(ipProvisioningEvent); |
| } |
| |
| private static void setIpReachabilityEvent(IpConnectivityEvent out, IpReachabilityEvent in) { |
| IpConnectivityLogClass.IpReachabilityEvent ipReachabilityEvent = |
| new IpConnectivityLogClass.IpReachabilityEvent(); |
| ipReachabilityEvent.eventType = in.eventType; |
| out.setIpReachabilityEvent(ipReachabilityEvent); |
| } |
| |
| private static void setNetworkEvent(IpConnectivityEvent out, NetworkEvent in) { |
| IpConnectivityLogClass.NetworkEvent networkEvent = |
| new IpConnectivityLogClass.NetworkEvent(); |
| networkEvent.eventType = in.eventType; |
| networkEvent.latencyMs = (int) in.durationMs; |
| out.setNetworkEvent(networkEvent); |
| } |
| |
| private static void setValidationProbeEvent(IpConnectivityEvent out, ValidationProbeEvent in) { |
| IpConnectivityLogClass.ValidationProbeEvent validationProbeEvent = |
| new IpConnectivityLogClass.ValidationProbeEvent(); |
| validationProbeEvent.latencyMs = (int) in.durationMs; |
| validationProbeEvent.probeType = in.probeType; |
| validationProbeEvent.probeResult = in.returnCode; |
| out.setValidationProbeEvent(validationProbeEvent); |
| } |
| |
| private static void setApfProgramEvent(IpConnectivityEvent out, ApfProgramEvent in) { |
| IpConnectivityLogClass.ApfProgramEvent apfProgramEvent = |
| new IpConnectivityLogClass.ApfProgramEvent(); |
| apfProgramEvent.lifetime = in.lifetime; |
| apfProgramEvent.effectiveLifetime = in.actualLifetime; |
| apfProgramEvent.filteredRas = in.filteredRas; |
| apfProgramEvent.currentRas = in.currentRas; |
| apfProgramEvent.programLength = in.programLength; |
| if (isBitSet(in.flags, ApfProgramEvent.FLAG_MULTICAST_FILTER_ON)) { |
| apfProgramEvent.dropMulticast = true; |
| } |
| if (isBitSet(in.flags, ApfProgramEvent.FLAG_HAS_IPV4_ADDRESS)) { |
| apfProgramEvent.hasIpv4Addr = true; |
| } |
| out.setApfProgramEvent(apfProgramEvent); |
| } |
| |
| private static void setApfStats(IpConnectivityEvent out, ApfStats in) { |
| IpConnectivityLogClass.ApfStatistics apfStatistics = |
| new IpConnectivityLogClass.ApfStatistics(); |
| apfStatistics.durationMs = in.durationMs; |
| apfStatistics.receivedRas = in.receivedRas; |
| apfStatistics.matchingRas = in.matchingRas; |
| apfStatistics.droppedRas = in.droppedRas; |
| apfStatistics.zeroLifetimeRas = in.zeroLifetimeRas; |
| apfStatistics.parseErrors = in.parseErrors; |
| apfStatistics.programUpdates = in.programUpdates; |
| apfStatistics.programUpdatesAll = in.programUpdatesAll; |
| apfStatistics.programUpdatesAllowingMulticast = in.programUpdatesAllowingMulticast; |
| apfStatistics.maxProgramSize = in.maxProgramSize; |
| out.setApfStatistics(apfStatistics); |
| } |
| |
| private static void setRaEvent(IpConnectivityEvent out, RaEvent in) { |
| IpConnectivityLogClass.RaEvent raEvent = new IpConnectivityLogClass.RaEvent(); |
| raEvent.routerLifetime = in.routerLifetime; |
| raEvent.prefixValidLifetime = in.prefixValidLifetime; |
| raEvent.prefixPreferredLifetime = in.prefixPreferredLifetime; |
| raEvent.routeInfoLifetime = in.routeInfoLifetime; |
| raEvent.rdnssLifetime = in.rdnssLifetime; |
| raEvent.dnsslLifetime = in.dnsslLifetime; |
| out.setRaEvent(raEvent); |
| } |
| |
| private static int[] bytesToInts(byte[] in) { |
| final int[] out = new int[in.length]; |
| for (int i = 0; i < in.length; i++) { |
| out[i] = in[i] & 0xFF; |
| } |
| return out; |
| } |
| |
| private static Pair[] toPairArray(SparseIntArray counts) { |
| final int s = counts.size(); |
| Pair[] pairs = new Pair[s]; |
| for (int i = 0; i < s; i++) { |
| Pair p = new Pair(); |
| p.key = counts.keyAt(i); |
| p.value = counts.valueAt(i); |
| pairs[i] = p; |
| } |
| return pairs; |
| } |
| |
| private static int ipSupportOf(DefaultNetworkEvent in) { |
| if (in.ipv4 && in.ipv6) { |
| return IpConnectivityLogClass.DefaultNetworkEvent.DUAL; |
| } |
| if (in.ipv6) { |
| return IpConnectivityLogClass.DefaultNetworkEvent.IPV6; |
| } |
| if (in.ipv4) { |
| return IpConnectivityLogClass.DefaultNetworkEvent.IPV4; |
| } |
| return IpConnectivityLogClass.DefaultNetworkEvent.NONE; |
| } |
| |
| private static boolean isBitSet(int flags, int bit) { |
| return (flags & (1 << bit)) != 0; |
| } |
| |
| private static void inferLinkLayer(IpConnectivityEvent ev) { |
| int linkLayer = IpConnectivityLogClass.UNKNOWN; |
| if (ev.transports != 0) { |
| linkLayer = transportsToLinkLayer(ev.transports); |
| } else if (ev.ifName != null) { |
| linkLayer = ifnameToLinkLayer(ev.ifName); |
| } |
| if (linkLayer == IpConnectivityLogClass.UNKNOWN) { |
| return; |
| } |
| ev.linkLayer = linkLayer; |
| ev.ifName = ""; |
| } |
| |
| private static int transportsToLinkLayer(long transports) { |
| switch (Long.bitCount(transports)) { |
| case 0: |
| return IpConnectivityLogClass.UNKNOWN; |
| case 1: |
| int t = Long.numberOfTrailingZeros(transports); |
| return transportToLinkLayer(t); |
| default: |
| return IpConnectivityLogClass.MULTIPLE; |
| } |
| } |
| |
| private static int transportToLinkLayer(int transport) { |
| if (0 <= transport && transport < TRANSPORT_LINKLAYER_MAP.length) { |
| return TRANSPORT_LINKLAYER_MAP[transport]; |
| } |
| return IpConnectivityLogClass.UNKNOWN; |
| } |
| |
| private static final int[] TRANSPORT_LINKLAYER_MAP = new int[MAX_TRANSPORT + 1]; |
| static { |
| TRANSPORT_LINKLAYER_MAP[TRANSPORT_CELLULAR] = IpConnectivityLogClass.CELLULAR; |
| TRANSPORT_LINKLAYER_MAP[TRANSPORT_WIFI] = IpConnectivityLogClass.WIFI; |
| TRANSPORT_LINKLAYER_MAP[TRANSPORT_BLUETOOTH] = IpConnectivityLogClass.BLUETOOTH; |
| TRANSPORT_LINKLAYER_MAP[TRANSPORT_ETHERNET] = IpConnectivityLogClass.ETHERNET; |
| TRANSPORT_LINKLAYER_MAP[TRANSPORT_VPN] = IpConnectivityLogClass.UNKNOWN; |
| TRANSPORT_LINKLAYER_MAP[TRANSPORT_WIFI_AWARE] = IpConnectivityLogClass.WIFI_NAN; |
| TRANSPORT_LINKLAYER_MAP[TRANSPORT_LOWPAN] = IpConnectivityLogClass.LOWPAN; |
| }; |
| |
| private static int ifnameToLinkLayer(String ifname) { |
| // Do not try to catch all interface names with regexes, instead only catch patterns that |
| // are cheap to check, and otherwise fallback on postprocessing in aggregation layer. |
| for (int i = 0; i < KNOWN_PREFIX; i++) { |
| String pattern = IFNAME_PREFIXES[i]; |
| if (ifname.startsWith(pattern)) { |
| return IFNAME_LINKLAYERS[i]; |
| } |
| } |
| return IpConnectivityLogClass.UNKNOWN; |
| } |
| |
| private static final int KNOWN_PREFIX = 7; |
| private static final String[] IFNAME_PREFIXES = new String[KNOWN_PREFIX]; |
| private static final int[] IFNAME_LINKLAYERS = new int[KNOWN_PREFIX]; |
| static { |
| // Ordered from most likely link layer to least likely. |
| IFNAME_PREFIXES[0] = "rmnet"; |
| IFNAME_LINKLAYERS[0] = IpConnectivityLogClass.CELLULAR; |
| |
| IFNAME_PREFIXES[1] = "wlan"; |
| IFNAME_LINKLAYERS[1] = IpConnectivityLogClass.WIFI; |
| |
| IFNAME_PREFIXES[2] = "bt-pan"; |
| IFNAME_LINKLAYERS[2] = IpConnectivityLogClass.BLUETOOTH; |
| |
| IFNAME_PREFIXES[3] = "p2p"; |
| IFNAME_LINKLAYERS[3] = IpConnectivityLogClass.WIFI_P2P; |
| |
| IFNAME_PREFIXES[4] = "aware"; |
| IFNAME_LINKLAYERS[4] = IpConnectivityLogClass.WIFI_NAN; |
| |
| IFNAME_PREFIXES[5] = "eth"; |
| IFNAME_LINKLAYERS[5] = IpConnectivityLogClass.ETHERNET; |
| |
| IFNAME_PREFIXES[6] = "wpan"; |
| IFNAME_LINKLAYERS[6] = IpConnectivityLogClass.LOWPAN; |
| } |
| } |
