| /* |
| * Copyright (C) 2011 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 android.net; |
| |
| import static android.net.ConnectivityManager.TYPE_BLUETOOTH; |
| import static android.net.ConnectivityManager.TYPE_ETHERNET; |
| import static android.net.ConnectivityManager.TYPE_PROXY; |
| import static android.net.ConnectivityManager.TYPE_WIFI; |
| import static android.net.ConnectivityManager.TYPE_WIFI_P2P; |
| import static android.net.ConnectivityManager.TYPE_WIMAX; |
| import static android.net.NetworkIdentity.COMBINE_SUBTYPE_ENABLED; |
| import static android.net.wifi.WifiInfo.removeDoubleQuotes; |
| import static android.telephony.TelephonyManager.NETWORK_CLASS_2_G; |
| import static android.telephony.TelephonyManager.NETWORK_CLASS_3_G; |
| import static android.telephony.TelephonyManager.NETWORK_CLASS_4_G; |
| import static android.telephony.TelephonyManager.NETWORK_CLASS_UNKNOWN; |
| import static android.telephony.TelephonyManager.getNetworkClass; |
| |
| import static com.android.internal.util.ArrayUtils.contains; |
| |
| import android.content.res.Resources; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.util.BackupUtils; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.ArrayUtils; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataInputStream; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Objects; |
| |
| /** |
| * Template definition used to generically match {@link NetworkIdentity}, |
| * usually when collecting statistics. |
| * |
| * @hide |
| */ |
| public class NetworkTemplate implements Parcelable { |
| /** |
| * Current Version of the Backup Serializer. |
| */ |
| private static final int BACKUP_VERSION = 1; |
| |
| public static final int MATCH_MOBILE_ALL = 1; |
| @Deprecated |
| public static final int MATCH_MOBILE_3G_LOWER = 2; |
| @Deprecated |
| public static final int MATCH_MOBILE_4G = 3; |
| public static final int MATCH_WIFI = 4; |
| public static final int MATCH_ETHERNET = 5; |
| public static final int MATCH_MOBILE_WILDCARD = 6; |
| public static final int MATCH_WIFI_WILDCARD = 7; |
| public static final int MATCH_BLUETOOTH = 8; |
| public static final int MATCH_PROXY = 9; |
| |
| /** |
| * Set of {@link NetworkInfo#getType()} that reflect data usage. |
| */ |
| private static final int[] DATA_USAGE_NETWORK_TYPES; |
| |
| static { |
| DATA_USAGE_NETWORK_TYPES = Resources.getSystem().getIntArray( |
| com.android.internal.R.array.config_data_usage_network_types); |
| } |
| |
| private static boolean sForceAllNetworkTypes = false; |
| |
| @VisibleForTesting |
| public static void forceAllNetworkTypes() { |
| sForceAllNetworkTypes = true; |
| } |
| |
| /** |
| * Template to match {@link ConnectivityManager#TYPE_MOBILE} networks with |
| * the given IMSI. |
| */ |
| public static NetworkTemplate buildTemplateMobileAll(String subscriberId) { |
| return new NetworkTemplate(MATCH_MOBILE_ALL, subscriberId, null); |
| } |
| |
| /** |
| * Template to match {@link ConnectivityManager#TYPE_MOBILE} networks with |
| * the given IMSI that roughly meet a "3G" definition, or lower. |
| */ |
| @Deprecated |
| public static NetworkTemplate buildTemplateMobile3gLower(String subscriberId) { |
| return new NetworkTemplate(MATCH_MOBILE_3G_LOWER, subscriberId, null); |
| } |
| |
| /** |
| * Template to match {@link ConnectivityManager#TYPE_MOBILE} networks with |
| * the given IMSI that roughly meet a "4G" definition. |
| */ |
| @Deprecated |
| public static NetworkTemplate buildTemplateMobile4g(String subscriberId) { |
| return new NetworkTemplate(MATCH_MOBILE_4G, subscriberId, null); |
| } |
| |
| /** |
| * Template to match {@link ConnectivityManager#TYPE_MOBILE} networks, |
| * regardless of IMSI. |
| */ |
| public static NetworkTemplate buildTemplateMobileWildcard() { |
| return new NetworkTemplate(MATCH_MOBILE_WILDCARD, null, null); |
| } |
| |
| /** |
| * Template to match all {@link ConnectivityManager#TYPE_WIFI} networks, |
| * regardless of SSID. |
| */ |
| public static NetworkTemplate buildTemplateWifiWildcard() { |
| return new NetworkTemplate(MATCH_WIFI_WILDCARD, null, null); |
| } |
| |
| @Deprecated |
| public static NetworkTemplate buildTemplateWifi() { |
| return buildTemplateWifiWildcard(); |
| } |
| |
| /** |
| * Template to match {@link ConnectivityManager#TYPE_WIFI} networks with the |
| * given SSID. |
| */ |
| public static NetworkTemplate buildTemplateWifi(String networkId) { |
| return new NetworkTemplate(MATCH_WIFI, null, networkId); |
| } |
| |
| /** |
| * Template to combine all {@link ConnectivityManager#TYPE_ETHERNET} style |
| * networks together. |
| */ |
| public static NetworkTemplate buildTemplateEthernet() { |
| return new NetworkTemplate(MATCH_ETHERNET, null, null); |
| } |
| |
| /** |
| * Template to combine all {@link ConnectivityManager#TYPE_BLUETOOTH} style |
| * networks together. |
| */ |
| public static NetworkTemplate buildTemplateBluetooth() { |
| return new NetworkTemplate(MATCH_BLUETOOTH, null, null); |
| } |
| |
| /** |
| * Template to combine all {@link ConnectivityManager#TYPE_PROXY} style |
| * networks together. |
| */ |
| public static NetworkTemplate buildTemplateProxy() { |
| return new NetworkTemplate(MATCH_PROXY, null, null); |
| } |
| |
| private final int mMatchRule; |
| private final String mSubscriberId; |
| |
| /** |
| * Ugh, templates are designed to target a single subscriber, but we might |
| * need to match several "merged" subscribers. These are the subscribers |
| * that should be considered to match this template. |
| * <p> |
| * Since the merge set is dynamic, it should <em>not</em> be persisted or |
| * used for determining equality. |
| */ |
| private final String[] mMatchSubscriberIds; |
| |
| private final String mNetworkId; |
| |
| public NetworkTemplate(int matchRule, String subscriberId, String networkId) { |
| this(matchRule, subscriberId, new String[] { subscriberId }, networkId); |
| } |
| |
| public NetworkTemplate(int matchRule, String subscriberId, String[] matchSubscriberIds, |
| String networkId) { |
| mMatchRule = matchRule; |
| mSubscriberId = subscriberId; |
| mMatchSubscriberIds = matchSubscriberIds; |
| mNetworkId = networkId; |
| } |
| |
| private NetworkTemplate(Parcel in) { |
| mMatchRule = in.readInt(); |
| mSubscriberId = in.readString(); |
| mMatchSubscriberIds = in.createStringArray(); |
| mNetworkId = in.readString(); |
| } |
| |
| @Override |
| public void writeToParcel(Parcel dest, int flags) { |
| dest.writeInt(mMatchRule); |
| dest.writeString(mSubscriberId); |
| dest.writeStringArray(mMatchSubscriberIds); |
| dest.writeString(mNetworkId); |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public String toString() { |
| final StringBuilder builder = new StringBuilder("NetworkTemplate: "); |
| builder.append("matchRule=").append(getMatchRuleName(mMatchRule)); |
| if (mSubscriberId != null) { |
| builder.append(", subscriberId=").append( |
| NetworkIdentity.scrubSubscriberId(mSubscriberId)); |
| } |
| if (mMatchSubscriberIds != null) { |
| builder.append(", matchSubscriberIds=").append( |
| Arrays.toString(NetworkIdentity.scrubSubscriberId(mMatchSubscriberIds))); |
| } |
| if (mNetworkId != null) { |
| builder.append(", networkId=").append(mNetworkId); |
| } |
| return builder.toString(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(mMatchRule, mSubscriberId, mNetworkId); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof NetworkTemplate) { |
| final NetworkTemplate other = (NetworkTemplate) obj; |
| return mMatchRule == other.mMatchRule |
| && Objects.equals(mSubscriberId, other.mSubscriberId) |
| && Objects.equals(mNetworkId, other.mNetworkId); |
| } |
| return false; |
| } |
| |
| public boolean isMatchRuleMobile() { |
| switch (mMatchRule) { |
| case MATCH_MOBILE_3G_LOWER: |
| case MATCH_MOBILE_4G: |
| case MATCH_MOBILE_ALL: |
| case MATCH_MOBILE_WILDCARD: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| public boolean isPersistable() { |
| switch (mMatchRule) { |
| case MATCH_MOBILE_WILDCARD: |
| case MATCH_WIFI_WILDCARD: |
| return false; |
| default: |
| return true; |
| } |
| } |
| |
| public int getMatchRule() { |
| return mMatchRule; |
| } |
| |
| public String getSubscriberId() { |
| return mSubscriberId; |
| } |
| |
| public String getNetworkId() { |
| return mNetworkId; |
| } |
| |
| /** |
| * Test if given {@link NetworkIdentity} matches this template. |
| */ |
| public boolean matches(NetworkIdentity ident) { |
| switch (mMatchRule) { |
| case MATCH_MOBILE_ALL: |
| return matchesMobile(ident); |
| case MATCH_MOBILE_3G_LOWER: |
| return matchesMobile3gLower(ident); |
| case MATCH_MOBILE_4G: |
| return matchesMobile4g(ident); |
| case MATCH_WIFI: |
| return matchesWifi(ident); |
| case MATCH_ETHERNET: |
| return matchesEthernet(ident); |
| case MATCH_MOBILE_WILDCARD: |
| return matchesMobileWildcard(ident); |
| case MATCH_WIFI_WILDCARD: |
| return matchesWifiWildcard(ident); |
| case MATCH_BLUETOOTH: |
| return matchesBluetooth(ident); |
| case MATCH_PROXY: |
| return matchesProxy(ident); |
| default: |
| throw new IllegalArgumentException("unknown network template"); |
| } |
| } |
| |
| /** |
| * Check if mobile network with matching IMSI. |
| */ |
| private boolean matchesMobile(NetworkIdentity ident) { |
| if (ident.mType == TYPE_WIMAX) { |
| // TODO: consider matching against WiMAX subscriber identity |
| return true; |
| } else { |
| final boolean matchesType = (sForceAllNetworkTypes |
| || contains(DATA_USAGE_NETWORK_TYPES, ident.mType)); |
| return matchesType && !ArrayUtils.isEmpty(mMatchSubscriberIds) |
| && ArrayUtils.contains(mMatchSubscriberIds, ident.mSubscriberId); |
| } |
| } |
| |
| /** |
| * Check if mobile network classified 3G or lower with matching IMSI. |
| */ |
| @Deprecated |
| private boolean matchesMobile3gLower(NetworkIdentity ident) { |
| ensureSubtypeAvailable(); |
| if (ident.mType == TYPE_WIMAX) { |
| return false; |
| } else if (matchesMobile(ident)) { |
| switch (getNetworkClass(ident.mSubType)) { |
| case NETWORK_CLASS_UNKNOWN: |
| case NETWORK_CLASS_2_G: |
| case NETWORK_CLASS_3_G: |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Check if mobile network classified 4G with matching IMSI. |
| */ |
| @Deprecated |
| private boolean matchesMobile4g(NetworkIdentity ident) { |
| ensureSubtypeAvailable(); |
| if (ident.mType == TYPE_WIMAX) { |
| // TODO: consider matching against WiMAX subscriber identity |
| return true; |
| } else if (matchesMobile(ident)) { |
| switch (getNetworkClass(ident.mSubType)) { |
| case NETWORK_CLASS_4_G: |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Check if matches Wi-Fi network template. |
| */ |
| private boolean matchesWifi(NetworkIdentity ident) { |
| switch (ident.mType) { |
| case TYPE_WIFI: |
| return Objects.equals( |
| removeDoubleQuotes(mNetworkId), removeDoubleQuotes(ident.mNetworkId)); |
| default: |
| return false; |
| } |
| } |
| |
| /** |
| * Check if matches Ethernet network template. |
| */ |
| private boolean matchesEthernet(NetworkIdentity ident) { |
| if (ident.mType == TYPE_ETHERNET) { |
| return true; |
| } |
| return false; |
| } |
| |
| private boolean matchesMobileWildcard(NetworkIdentity ident) { |
| if (ident.mType == TYPE_WIMAX) { |
| return true; |
| } else { |
| return sForceAllNetworkTypes || contains(DATA_USAGE_NETWORK_TYPES, ident.mType); |
| } |
| } |
| |
| private boolean matchesWifiWildcard(NetworkIdentity ident) { |
| switch (ident.mType) { |
| case TYPE_WIFI: |
| case TYPE_WIFI_P2P: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| /** |
| * Check if matches Bluetooth network template. |
| */ |
| private boolean matchesBluetooth(NetworkIdentity ident) { |
| if (ident.mType == TYPE_BLUETOOTH) { |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Check if matches Proxy network template. |
| */ |
| private boolean matchesProxy(NetworkIdentity ident) { |
| return ident.mType == TYPE_PROXY; |
| } |
| |
| private static String getMatchRuleName(int matchRule) { |
| switch (matchRule) { |
| case MATCH_MOBILE_3G_LOWER: |
| return "MOBILE_3G_LOWER"; |
| case MATCH_MOBILE_4G: |
| return "MOBILE_4G"; |
| case MATCH_MOBILE_ALL: |
| return "MOBILE_ALL"; |
| case MATCH_WIFI: |
| return "WIFI"; |
| case MATCH_ETHERNET: |
| return "ETHERNET"; |
| case MATCH_MOBILE_WILDCARD: |
| return "MOBILE_WILDCARD"; |
| case MATCH_WIFI_WILDCARD: |
| return "WIFI_WILDCARD"; |
| case MATCH_BLUETOOTH: |
| return "BLUETOOTH"; |
| case MATCH_PROXY: |
| return "PROXY"; |
| default: |
| return "UNKNOWN"; |
| } |
| } |
| |
| private static void ensureSubtypeAvailable() { |
| if (COMBINE_SUBTYPE_ENABLED) { |
| throw new IllegalArgumentException( |
| "Unable to enforce 3G_LOWER template on combined data."); |
| } |
| } |
| |
| /** |
| * Examine the given template and normalize if it refers to a "merged" |
| * mobile subscriber. We pick the "lowest" merged subscriber as the primary |
| * for key purposes, and expand the template to match all other merged |
| * subscribers. |
| * <p> |
| * For example, given an incoming template matching B, and the currently |
| * active merge set [A,B], we'd return a new template that primarily matches |
| * A, but also matches B. |
| */ |
| public static NetworkTemplate normalize(NetworkTemplate template, String[] merged) { |
| if (template.isMatchRuleMobile() && ArrayUtils.contains(merged, template.mSubscriberId)) { |
| // Requested template subscriber is part of the merge group; return |
| // a template that matches all merged subscribers. |
| return new NetworkTemplate(template.mMatchRule, merged[0], merged, |
| template.mNetworkId); |
| } else { |
| return template; |
| } |
| } |
| |
| public static final Creator<NetworkTemplate> CREATOR = new Creator<NetworkTemplate>() { |
| @Override |
| public NetworkTemplate createFromParcel(Parcel in) { |
| return new NetworkTemplate(in); |
| } |
| |
| @Override |
| public NetworkTemplate[] newArray(int size) { |
| return new NetworkTemplate[size]; |
| } |
| }; |
| |
| public byte[] getBytesForBackup() throws IOException { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| DataOutputStream out = new DataOutputStream(baos); |
| |
| out.writeInt(BACKUP_VERSION); |
| |
| out.writeInt(mMatchRule); |
| BackupUtils.writeString(out, mSubscriberId); |
| BackupUtils.writeString(out, mNetworkId); |
| |
| return baos.toByteArray(); |
| } |
| |
| public static NetworkTemplate getNetworkTemplateFromBackup(DataInputStream in) |
| throws IOException, BackupUtils.BadVersionException { |
| int version = in.readInt(); |
| if (version < 1 || version > BACKUP_VERSION) { |
| throw new BackupUtils.BadVersionException("Unknown Backup Serialization Version"); |
| } |
| |
| int matchRule = in.readInt(); |
| String subscriberId = BackupUtils.readString(in); |
| String networkId = BackupUtils.readString(in); |
| |
| return new NetworkTemplate(matchRule, subscriberId, networkId); |
| } |
| } |