| /* |
| * Copyright (C) 2007 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; |
| |
| import static android.Manifest.permission.ACCESS_NETWORK_STATE; |
| import static android.Manifest.permission.CHANGE_NETWORK_STATE; |
| import static android.Manifest.permission.DUMP; |
| import static android.Manifest.permission.MANAGE_NETWORK_POLICY; |
| import static android.net.NetworkStats.SET_DEFAULT; |
| import static android.net.NetworkStats.TAG_NONE; |
| import static android.net.NetworkStats.UID_ALL; |
| import static android.net.TrafficStats.UID_TETHERING; |
| import static android.provider.Settings.Secure.NETSTATS_ENABLED; |
| import static com.android.server.NetworkManagementSocketTagger.PROP_QTAGUID_ENABLED; |
| |
| import android.content.Context; |
| import android.content.pm.PackageManager; |
| import android.net.INetworkManagementEventObserver; |
| import android.net.InterfaceConfiguration; |
| import android.net.LinkAddress; |
| import android.net.NetworkStats; |
| import android.net.NetworkUtils; |
| import android.net.RouteInfo; |
| import android.net.wifi.WifiConfiguration; |
| import android.net.wifi.WifiConfiguration.KeyMgmt; |
| import android.os.Binder; |
| import android.os.INetworkManagementService; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.provider.Settings; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.util.SparseBooleanArray; |
| |
| import com.android.internal.net.NetworkStatsFactory; |
| import com.google.android.collect.Sets; |
| |
| import java.io.BufferedReader; |
| import java.io.DataInputStream; |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.PrintWriter; |
| import java.net.Inet4Address; |
| import java.net.InetAddress; |
| import java.net.InterfaceAddress; |
| import java.net.NetworkInterface; |
| import java.net.SocketException; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.NoSuchElementException; |
| import java.util.StringTokenizer; |
| import java.util.concurrent.CountDownLatch; |
| |
| /** |
| * @hide |
| */ |
| public class NetworkManagementService extends INetworkManagementService.Stub |
| implements Watchdog.Monitor { |
| private static final String TAG = "NetworkManagementService"; |
| private static final boolean DBG = false; |
| private static final String NETD_TAG = "NetdConnector"; |
| |
| private static final int ADD = 1; |
| private static final int REMOVE = 2; |
| |
| private static final String DEFAULT = "default"; |
| private static final String SECONDARY = "secondary"; |
| |
| /** |
| * Name representing {@link #setGlobalAlert(long)} limit when delivered to |
| * {@link INetworkManagementEventObserver#limitReached(String, String)}. |
| */ |
| public static final String LIMIT_GLOBAL_ALERT = "globalAlert"; |
| |
| class NetdResponseCode { |
| /* Keep in sync with system/netd/ResponseCode.h */ |
| public static final int InterfaceListResult = 110; |
| public static final int TetherInterfaceListResult = 111; |
| public static final int TetherDnsFwdTgtListResult = 112; |
| public static final int TtyListResult = 113; |
| |
| public static final int TetherStatusResult = 210; |
| public static final int IpFwdStatusResult = 211; |
| public static final int InterfaceGetCfgResult = 213; |
| public static final int SoftapStatusResult = 214; |
| public static final int InterfaceRxCounterResult = 216; |
| public static final int InterfaceTxCounterResult = 217; |
| public static final int InterfaceRxThrottleResult = 218; |
| public static final int InterfaceTxThrottleResult = 219; |
| public static final int QuotaCounterResult = 220; |
| public static final int TetheringStatsResult = 221; |
| |
| public static final int InterfaceChange = 600; |
| public static final int BandwidthControl = 601; |
| } |
| |
| /** |
| * Binder context for this service |
| */ |
| private Context mContext; |
| |
| /** |
| * connector object for communicating with netd |
| */ |
| private NativeDaemonConnector mConnector; |
| |
| private Thread mThread; |
| private final CountDownLatch mConnectedSignal = new CountDownLatch(1); |
| |
| // TODO: replace with RemoteCallbackList |
| private ArrayList<INetworkManagementEventObserver> mObservers; |
| |
| private final NetworkStatsFactory mStatsFactory = new NetworkStatsFactory(); |
| |
| private Object mQuotaLock = new Object(); |
| /** Set of interfaces with active quotas. */ |
| private HashSet<String> mActiveQuotaIfaces = Sets.newHashSet(); |
| /** Set of interfaces with active alerts. */ |
| private HashSet<String> mActiveAlertIfaces = Sets.newHashSet(); |
| /** Set of UIDs with active reject rules. */ |
| private SparseBooleanArray mUidRejectOnQuota = new SparseBooleanArray(); |
| |
| private volatile boolean mBandwidthControlEnabled; |
| |
| /** |
| * Constructs a new NetworkManagementService instance |
| * |
| * @param context Binder context for this service |
| */ |
| private NetworkManagementService(Context context) { |
| mContext = context; |
| mObservers = new ArrayList<INetworkManagementEventObserver>(); |
| |
| if ("simulator".equals(SystemProperties.get("ro.product.device"))) { |
| return; |
| } |
| |
| mConnector = new NativeDaemonConnector( |
| new NetdCallbackReceiver(), "netd", 10, NETD_TAG); |
| mThread = new Thread(mConnector, NETD_TAG); |
| |
| // Add ourself to the Watchdog monitors. |
| Watchdog.getInstance().addMonitor(this); |
| } |
| |
| public static NetworkManagementService create(Context context) throws InterruptedException { |
| NetworkManagementService service = new NetworkManagementService(context); |
| if (DBG) Slog.d(TAG, "Creating NetworkManagementService"); |
| service.mThread.start(); |
| if (DBG) Slog.d(TAG, "Awaiting socket connection"); |
| service.mConnectedSignal.await(); |
| if (DBG) Slog.d(TAG, "Connected"); |
| return service; |
| } |
| |
| public void systemReady() { |
| // only enable bandwidth control when support exists, and requested by |
| // system setting. |
| final boolean hasKernelSupport = new File("/proc/net/xt_qtaguid/ctrl").exists(); |
| final boolean shouldEnable = |
| Settings.Secure.getInt(mContext.getContentResolver(), NETSTATS_ENABLED, 1) != 0; |
| |
| if (hasKernelSupport && shouldEnable) { |
| Slog.d(TAG, "enabling bandwidth control"); |
| try { |
| mConnector.doCommand("bandwidth enable"); |
| mBandwidthControlEnabled = true; |
| } catch (NativeDaemonConnectorException e) { |
| Log.wtf(TAG, "problem enabling bandwidth controls", e); |
| } |
| } else { |
| Slog.d(TAG, "not enabling bandwidth control"); |
| } |
| |
| SystemProperties.set(PROP_QTAGUID_ENABLED, mBandwidthControlEnabled ? "1" : "0"); |
| } |
| |
| public void registerObserver(INetworkManagementEventObserver obs) { |
| Slog.d(TAG, "Registering observer"); |
| mObservers.add(obs); |
| } |
| |
| public void unregisterObserver(INetworkManagementEventObserver obs) { |
| Slog.d(TAG, "Unregistering observer"); |
| mObservers.remove(mObservers.indexOf(obs)); |
| } |
| |
| /** |
| * Notify our observers of an interface status change |
| */ |
| private void notifyInterfaceStatusChanged(String iface, boolean up) { |
| for (INetworkManagementEventObserver obs : mObservers) { |
| try { |
| obs.interfaceStatusChanged(iface, up); |
| } catch (Exception ex) { |
| Slog.w(TAG, "Observer notifier failed", ex); |
| } |
| } |
| } |
| |
| /** |
| * Notify our observers of an interface link state change |
| * (typically, an Ethernet cable has been plugged-in or unplugged). |
| */ |
| private void notifyInterfaceLinkStateChanged(String iface, boolean up) { |
| for (INetworkManagementEventObserver obs : mObservers) { |
| try { |
| obs.interfaceLinkStateChanged(iface, up); |
| } catch (Exception ex) { |
| Slog.w(TAG, "Observer notifier failed", ex); |
| } |
| } |
| } |
| |
| /** |
| * Notify our observers of an interface addition. |
| */ |
| private void notifyInterfaceAdded(String iface) { |
| for (INetworkManagementEventObserver obs : mObservers) { |
| try { |
| obs.interfaceAdded(iface); |
| } catch (Exception ex) { |
| Slog.w(TAG, "Observer notifier failed", ex); |
| } |
| } |
| } |
| |
| /** |
| * Notify our observers of an interface removal. |
| */ |
| private void notifyInterfaceRemoved(String iface) { |
| // netd already clears out quota and alerts for removed ifaces; update |
| // our sanity-checking state. |
| mActiveAlertIfaces.remove(iface); |
| mActiveQuotaIfaces.remove(iface); |
| |
| for (INetworkManagementEventObserver obs : mObservers) { |
| try { |
| obs.interfaceRemoved(iface); |
| } catch (Exception ex) { |
| Slog.w(TAG, "Observer notifier failed", ex); |
| } |
| } |
| } |
| |
| /** |
| * Notify our observers of a limit reached. |
| */ |
| private void notifyLimitReached(String limitName, String iface) { |
| for (INetworkManagementEventObserver obs : mObservers) { |
| try { |
| obs.limitReached(limitName, iface); |
| } catch (Exception ex) { |
| Slog.w(TAG, "Observer notifier failed", ex); |
| } |
| } |
| } |
| |
| /** |
| * Let us know the daemon is connected |
| */ |
| protected void onDaemonConnected() { |
| if (DBG) Slog.d(TAG, "onConnected"); |
| mConnectedSignal.countDown(); |
| } |
| |
| |
| // |
| // Netd Callback handling |
| // |
| |
| class NetdCallbackReceiver implements INativeDaemonConnectorCallbacks { |
| /** {@inheritDoc} */ |
| public void onDaemonConnected() { |
| NetworkManagementService.this.onDaemonConnected(); |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean onEvent(int code, String raw, String[] cooked) { |
| switch (code) { |
| case NetdResponseCode.InterfaceChange: |
| /* |
| * a network interface change occured |
| * Format: "NNN Iface added <name>" |
| * "NNN Iface removed <name>" |
| * "NNN Iface changed <name> <up/down>" |
| * "NNN Iface linkstatus <name> <up/down>" |
| */ |
| if (cooked.length < 4 || !cooked[1].equals("Iface")) { |
| throw new IllegalStateException( |
| String.format("Invalid event from daemon (%s)", raw)); |
| } |
| if (cooked[2].equals("added")) { |
| notifyInterfaceAdded(cooked[3]); |
| return true; |
| } else if (cooked[2].equals("removed")) { |
| notifyInterfaceRemoved(cooked[3]); |
| return true; |
| } else if (cooked[2].equals("changed") && cooked.length == 5) { |
| notifyInterfaceStatusChanged(cooked[3], cooked[4].equals("up")); |
| return true; |
| } else if (cooked[2].equals("linkstate") && cooked.length == 5) { |
| notifyInterfaceLinkStateChanged(cooked[3], cooked[4].equals("up")); |
| return true; |
| } |
| throw new IllegalStateException( |
| String.format("Invalid event from daemon (%s)", raw)); |
| // break; |
| case NetdResponseCode.BandwidthControl: |
| /* |
| * Bandwidth control needs some attention |
| * Format: "NNN limit alert <alertName> <ifaceName>" |
| */ |
| if (cooked.length < 5 || !cooked[1].equals("limit")) { |
| throw new IllegalStateException( |
| String.format("Invalid event from daemon (%s)", raw)); |
| } |
| if (cooked[2].equals("alert")) { |
| notifyLimitReached(cooked[3], cooked[4]); |
| return true; |
| } |
| throw new IllegalStateException( |
| String.format("Invalid event from daemon (%s)", raw)); |
| // break; |
| default: break; |
| } |
| return false; |
| } |
| } |
| |
| |
| // |
| // INetworkManagementService members |
| // |
| |
| public String[] listInterfaces() throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| |
| try { |
| return mConnector.doListCommand("interface list", NetdResponseCode.InterfaceListResult); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Cannot communicate with native daemon to list interfaces"); |
| } |
| } |
| |
| public InterfaceConfiguration getInterfaceConfig(String iface) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission(ACCESS_NETWORK_STATE, TAG); |
| String rsp; |
| try { |
| rsp = mConnector.doCommand("interface getcfg " + iface).get(0); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Cannot communicate with native daemon to get interface config"); |
| } |
| Slog.d(TAG, String.format("rsp <%s>", rsp)); |
| |
| // Rsp: 213 xx:xx:xx:xx:xx:xx yyy.yyy.yyy.yyy zzz [flag1 flag2 flag3] |
| StringTokenizer st = new StringTokenizer(rsp); |
| |
| InterfaceConfiguration cfg; |
| try { |
| try { |
| int code = Integer.parseInt(st.nextToken(" ")); |
| if (code != NetdResponseCode.InterfaceGetCfgResult) { |
| throw new IllegalStateException( |
| String.format("Expected code %d, but got %d", |
| NetdResponseCode.InterfaceGetCfgResult, code)); |
| } |
| } catch (NumberFormatException nfe) { |
| throw new IllegalStateException( |
| String.format("Invalid response from daemon (%s)", rsp)); |
| } |
| |
| cfg = new InterfaceConfiguration(); |
| cfg.hwAddr = st.nextToken(" "); |
| InetAddress addr = null; |
| int prefixLength = 0; |
| try { |
| addr = NetworkUtils.numericToInetAddress(st.nextToken(" ")); |
| } catch (IllegalArgumentException iae) { |
| Slog.e(TAG, "Failed to parse ipaddr", iae); |
| } |
| |
| try { |
| prefixLength = Integer.parseInt(st.nextToken(" ")); |
| } catch (NumberFormatException nfe) { |
| Slog.e(TAG, "Failed to parse prefixLength", nfe); |
| } |
| |
| cfg.addr = new LinkAddress(addr, prefixLength); |
| cfg.interfaceFlags = st.nextToken("]").trim() +"]"; |
| } catch (NoSuchElementException nsee) { |
| throw new IllegalStateException( |
| String.format("Invalid response from daemon (%s)", rsp)); |
| } |
| Slog.d(TAG, String.format("flags <%s>", cfg.interfaceFlags)); |
| return cfg; |
| } |
| |
| public void setInterfaceConfig( |
| String iface, InterfaceConfiguration cfg) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission(CHANGE_NETWORK_STATE, TAG); |
| LinkAddress linkAddr = cfg.addr; |
| if (linkAddr == null || linkAddr.getAddress() == null) { |
| throw new IllegalStateException("Null LinkAddress given"); |
| } |
| String cmd = String.format("interface setcfg %s %s %d %s", iface, |
| linkAddr.getAddress().getHostAddress(), |
| linkAddr.getNetworkPrefixLength(), |
| cfg.interfaceFlags); |
| try { |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate with native daemon to interface setcfg - " + e); |
| } |
| } |
| |
| public void setInterfaceDown(String iface) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission(CHANGE_NETWORK_STATE, TAG); |
| try { |
| InterfaceConfiguration ifcg = getInterfaceConfig(iface); |
| ifcg.interfaceFlags = ifcg.interfaceFlags.replace("up", "down"); |
| setInterfaceConfig(iface, ifcg); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate with native daemon for interface down - " + e); |
| } |
| } |
| |
| public void setInterfaceUp(String iface) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission(CHANGE_NETWORK_STATE, TAG); |
| try { |
| InterfaceConfiguration ifcg = getInterfaceConfig(iface); |
| ifcg.interfaceFlags = ifcg.interfaceFlags.replace("down", "up"); |
| setInterfaceConfig(iface, ifcg); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate with native daemon for interface up - " + e); |
| } |
| } |
| |
| public void setInterfaceIpv6PrivacyExtensions(String iface, boolean enable) |
| throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission(CHANGE_NETWORK_STATE, TAG); |
| String cmd = String.format("interface ipv6privacyextensions %s %s", iface, |
| enable ? "enable" : "disable"); |
| try { |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate with native daemon to set ipv6privacyextensions - " + e); |
| } |
| } |
| |
| |
| |
| /* TODO: This is right now a IPv4 only function. Works for wifi which loses its |
| IPv6 addresses on interface down, but we need to do full clean up here */ |
| public void clearInterfaceAddresses(String iface) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission(CHANGE_NETWORK_STATE, TAG); |
| String cmd = String.format("interface clearaddrs %s", iface); |
| try { |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate with native daemon to interface clearallips - " + e); |
| } |
| } |
| |
| public void enableIpv6(String iface) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| mConnector.doCommand(String.format("interface ipv6 %s enable", iface)); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon for enabling ipv6"); |
| } |
| } |
| |
| public void disableIpv6(String iface) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| mConnector.doCommand(String.format("interface ipv6 %s disable", iface)); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon for disabling ipv6"); |
| } |
| } |
| |
| public void addRoute(String interfaceName, RouteInfo route) { |
| mContext.enforceCallingOrSelfPermission(CHANGE_NETWORK_STATE, TAG); |
| modifyRoute(interfaceName, ADD, route, DEFAULT); |
| } |
| |
| public void removeRoute(String interfaceName, RouteInfo route) { |
| mContext.enforceCallingOrSelfPermission(CHANGE_NETWORK_STATE, TAG); |
| modifyRoute(interfaceName, REMOVE, route, DEFAULT); |
| } |
| |
| public void addSecondaryRoute(String interfaceName, RouteInfo route) { |
| mContext.enforceCallingOrSelfPermission(CHANGE_NETWORK_STATE, TAG); |
| modifyRoute(interfaceName, ADD, route, SECONDARY); |
| } |
| |
| public void removeSecondaryRoute(String interfaceName, RouteInfo route) { |
| mContext.enforceCallingOrSelfPermission(CHANGE_NETWORK_STATE, TAG); |
| modifyRoute(interfaceName, REMOVE, route, SECONDARY); |
| } |
| |
| private void modifyRoute(String interfaceName, int action, RouteInfo route, String type) { |
| ArrayList<String> rsp; |
| |
| StringBuilder cmd; |
| |
| switch (action) { |
| case ADD: |
| { |
| cmd = new StringBuilder("interface route add " + interfaceName + " " + type); |
| break; |
| } |
| case REMOVE: |
| { |
| cmd = new StringBuilder("interface route remove " + interfaceName + " " + type); |
| break; |
| } |
| default: |
| throw new IllegalStateException("Unknown action type " + action); |
| } |
| |
| // create triplet: dest-ip-addr prefixlength gateway-ip-addr |
| LinkAddress la = route.getDestination(); |
| cmd.append(' '); |
| cmd.append(la.getAddress().getHostAddress()); |
| cmd.append(' '); |
| cmd.append(la.getNetworkPrefixLength()); |
| cmd.append(' '); |
| if (route.getGateway() == null) { |
| if (la.getAddress() instanceof Inet4Address) { |
| cmd.append("0.0.0.0"); |
| } else { |
| cmd.append ("::0"); |
| } |
| } else { |
| cmd.append(route.getGateway().getHostAddress()); |
| } |
| try { |
| rsp = mConnector.doCommand(cmd.toString()); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate with native dameon to add routes - " |
| + e); |
| } |
| |
| if (DBG) { |
| for (String line : rsp) { |
| Log.v(TAG, "add route response is " + line); |
| } |
| } |
| } |
| |
| private ArrayList<String> readRouteList(String filename) { |
| FileInputStream fstream = null; |
| ArrayList<String> list = new ArrayList<String>(); |
| |
| try { |
| fstream = new FileInputStream(filename); |
| DataInputStream in = new DataInputStream(fstream); |
| BufferedReader br = new BufferedReader(new InputStreamReader(in)); |
| String s; |
| |
| // throw away the title line |
| |
| while (((s = br.readLine()) != null) && (s.length() != 0)) { |
| list.add(s); |
| } |
| } catch (IOException ex) { |
| // return current list, possibly empty |
| } finally { |
| if (fstream != null) { |
| try { |
| fstream.close(); |
| } catch (IOException ex) {} |
| } |
| } |
| |
| return list; |
| } |
| |
| public RouteInfo[] getRoutes(String interfaceName) { |
| mContext.enforceCallingOrSelfPermission(ACCESS_NETWORK_STATE, TAG); |
| ArrayList<RouteInfo> routes = new ArrayList<RouteInfo>(); |
| |
| // v4 routes listed as: |
| // iface dest-addr gateway-addr flags refcnt use metric netmask mtu window IRTT |
| for (String s : readRouteList("/proc/net/route")) { |
| String[] fields = s.split("\t"); |
| |
| if (fields.length > 7) { |
| String iface = fields[0]; |
| |
| if (interfaceName.equals(iface)) { |
| String dest = fields[1]; |
| String gate = fields[2]; |
| String flags = fields[3]; // future use? |
| String mask = fields[7]; |
| try { |
| // address stored as a hex string, ex: 0014A8C0 |
| InetAddress destAddr = |
| NetworkUtils.intToInetAddress((int)Long.parseLong(dest, 16)); |
| int prefixLength = |
| NetworkUtils.netmaskIntToPrefixLength( |
| (int)Long.parseLong(mask, 16)); |
| LinkAddress linkAddress = new LinkAddress(destAddr, prefixLength); |
| |
| // address stored as a hex string, ex 0014A8C0 |
| InetAddress gatewayAddr = |
| NetworkUtils.intToInetAddress((int)Long.parseLong(gate, 16)); |
| |
| RouteInfo route = new RouteInfo(linkAddress, gatewayAddr); |
| routes.add(route); |
| } catch (Exception e) { |
| Log.e(TAG, "Error parsing route " + s + " : " + e); |
| continue; |
| } |
| } |
| } |
| } |
| |
| // v6 routes listed as: |
| // dest-addr prefixlength ?? ?? gateway-addr ?? ?? ?? ?? iface |
| for (String s : readRouteList("/proc/net/ipv6_route")) { |
| String[]fields = s.split("\\s+"); |
| if (fields.length > 9) { |
| String iface = fields[9].trim(); |
| if (interfaceName.equals(iface)) { |
| String dest = fields[0]; |
| String prefix = fields[1]; |
| String gate = fields[4]; |
| |
| try { |
| // prefix length stored as a hex string, ex 40 |
| int prefixLength = Integer.parseInt(prefix, 16); |
| |
| // address stored as a 32 char hex string |
| // ex fe800000000000000000000000000000 |
| InetAddress destAddr = NetworkUtils.hexToInet6Address(dest); |
| LinkAddress linkAddress = new LinkAddress(destAddr, prefixLength); |
| |
| InetAddress gateAddr = NetworkUtils.hexToInet6Address(gate); |
| |
| RouteInfo route = new RouteInfo(linkAddress, gateAddr); |
| routes.add(route); |
| } catch (Exception e) { |
| Log.e(TAG, "Error parsing route " + s + " : " + e); |
| continue; |
| } |
| } |
| } |
| } |
| return (RouteInfo[]) routes.toArray(new RouteInfo[0]); |
| } |
| |
| public void shutdown() { |
| if (mContext.checkCallingOrSelfPermission( |
| android.Manifest.permission.SHUTDOWN) |
| != PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException("Requires SHUTDOWN permission"); |
| } |
| |
| Slog.d(TAG, "Shutting down"); |
| } |
| |
| public boolean getIpForwardingEnabled() throws IllegalStateException{ |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| |
| ArrayList<String> rsp; |
| try { |
| rsp = mConnector.doCommand("ipfwd status"); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate with native daemon to ipfwd status"); |
| } |
| |
| for (String line : rsp) { |
| String[] tok = line.split(" "); |
| if (tok.length < 3) { |
| Slog.e(TAG, "Malformed response from native daemon: " + line); |
| return false; |
| } |
| |
| int code = Integer.parseInt(tok[0]); |
| if (code == NetdResponseCode.IpFwdStatusResult) { |
| // 211 Forwarding <enabled/disabled> |
| return "enabled".equals(tok[2]); |
| } else { |
| throw new IllegalStateException(String.format("Unexpected response code %d", code)); |
| } |
| } |
| throw new IllegalStateException("Got an empty response"); |
| } |
| |
| public void setIpForwardingEnabled(boolean enable) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| mConnector.doCommand(String.format("ipfwd %sable", (enable ? "en" : "dis"))); |
| } |
| |
| public void startTethering(String[] dhcpRange) |
| throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| // cmd is "tether start first_start first_stop second_start second_stop ..." |
| // an odd number of addrs will fail |
| String cmd = "tether start"; |
| for (String d : dhcpRange) { |
| cmd += " " + d; |
| } |
| |
| try { |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Unable to communicate to native daemon"); |
| } |
| } |
| |
| public void stopTethering() throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| mConnector.doCommand("tether stop"); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Unable to communicate to native daemon to stop tether"); |
| } |
| } |
| |
| public boolean isTetheringStarted() throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| |
| ArrayList<String> rsp; |
| try { |
| rsp = mConnector.doCommand("tether status"); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon to get tether status"); |
| } |
| |
| for (String line : rsp) { |
| String[] tok = line.split(" "); |
| if (tok.length < 3) { |
| throw new IllegalStateException("Malformed response for tether status: " + line); |
| } |
| int code = Integer.parseInt(tok[0]); |
| if (code == NetdResponseCode.TetherStatusResult) { |
| // XXX: Tethering services <started/stopped> <TBD>... |
| return "started".equals(tok[2]); |
| } else { |
| throw new IllegalStateException(String.format("Unexpected response code %d", code)); |
| } |
| } |
| throw new IllegalStateException("Got an empty response"); |
| } |
| |
| public void tetherInterface(String iface) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| mConnector.doCommand("tether interface add " + iface); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon for adding tether interface"); |
| } |
| } |
| |
| public void untetherInterface(String iface) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| mConnector.doCommand("tether interface remove " + iface); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon for removing tether interface"); |
| } |
| } |
| |
| public String[] listTetheredInterfaces() throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| return mConnector.doListCommand( |
| "tether interface list", NetdResponseCode.TetherInterfaceListResult); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon for listing tether interfaces"); |
| } |
| } |
| |
| public void setDnsForwarders(String[] dns) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| String cmd = "tether dns set"; |
| for (String s : dns) { |
| cmd += " " + NetworkUtils.numericToInetAddress(s).getHostAddress(); |
| } |
| try { |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon for setting tether dns"); |
| } |
| } catch (IllegalArgumentException e) { |
| throw new IllegalStateException("Error resolving dns name", e); |
| } |
| } |
| |
| public String[] getDnsForwarders() throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| return mConnector.doListCommand( |
| "tether dns list", NetdResponseCode.TetherDnsFwdTgtListResult); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon for listing tether dns"); |
| } |
| } |
| |
| private void modifyNat(String cmd, String internalInterface, String externalInterface) |
| throws SocketException { |
| cmd = String.format("nat %s %s %s", cmd, internalInterface, externalInterface); |
| |
| NetworkInterface internalNetworkInterface = |
| NetworkInterface.getByName(internalInterface); |
| if (internalNetworkInterface == null) { |
| cmd += " 0"; |
| } else { |
| Collection<InterfaceAddress>interfaceAddresses = |
| internalNetworkInterface.getInterfaceAddresses(); |
| cmd += " " + interfaceAddresses.size(); |
| for (InterfaceAddress ia : interfaceAddresses) { |
| InetAddress addr = NetworkUtils.getNetworkPart(ia.getAddress(), |
| ia.getNetworkPrefixLength()); |
| cmd = cmd + " " + addr.getHostAddress() + "/" + ia.getNetworkPrefixLength(); |
| } |
| } |
| |
| mConnector.doCommand(cmd); |
| } |
| |
| public void enableNat(String internalInterface, String externalInterface) |
| throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| if (DBG) Log.d(TAG, "enableNat(" + internalInterface + ", " + externalInterface + ")"); |
| try { |
| modifyNat("enable", internalInterface, externalInterface); |
| } catch (Exception e) { |
| Log.e(TAG, "enableNat got Exception " + e.toString()); |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon for enabling NAT interface"); |
| } |
| } |
| |
| public void disableNat(String internalInterface, String externalInterface) |
| throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| if (DBG) Log.d(TAG, "disableNat(" + internalInterface + ", " + externalInterface + ")"); |
| try { |
| modifyNat("disable", internalInterface, externalInterface); |
| } catch (Exception e) { |
| Log.e(TAG, "disableNat got Exception " + e.toString()); |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon for disabling NAT interface"); |
| } |
| } |
| |
| public String[] listTtys() throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| return mConnector.doListCommand("list_ttys", NetdResponseCode.TtyListResult); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Unable to communicate to native daemon for listing TTYs"); |
| } |
| } |
| |
| public void attachPppd(String tty, String localAddr, String remoteAddr, String dns1Addr, |
| String dns2Addr) throws IllegalStateException { |
| try { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| mConnector.doCommand(String.format("pppd attach %s %s %s %s %s", tty, |
| NetworkUtils.numericToInetAddress(localAddr).getHostAddress(), |
| NetworkUtils.numericToInetAddress(remoteAddr).getHostAddress(), |
| NetworkUtils.numericToInetAddress(dns1Addr).getHostAddress(), |
| NetworkUtils.numericToInetAddress(dns2Addr).getHostAddress())); |
| } catch (IllegalArgumentException e) { |
| throw new IllegalStateException("Error resolving addr", e); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon to attach pppd", e); |
| } |
| } |
| |
| public void detachPppd(String tty) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| mConnector.doCommand(String.format("pppd detach %s", tty)); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon to detach pppd", e); |
| } |
| } |
| |
| public void startAccessPoint(WifiConfiguration wifiConfig, String wlanIface, String softapIface) |
| throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_WIFI_STATE, "NetworkManagementService"); |
| try { |
| wifiFirmwareReload(wlanIface, "AP"); |
| mConnector.doCommand(String.format("softap start " + wlanIface)); |
| if (wifiConfig == null) { |
| mConnector.doCommand(String.format("softap set " + wlanIface + " " + softapIface)); |
| } else { |
| /** |
| * softap set arg1 arg2 arg3 [arg4 arg5 arg6 arg7 arg8] |
| * argv1 - wlan interface |
| * argv2 - softap interface |
| * argv3 - SSID |
| * argv4 - Security |
| * argv5 - Key |
| * argv6 - Channel |
| * argv7 - Preamble |
| * argv8 - Max SCB |
| */ |
| String str = String.format("softap set " + wlanIface + " " + softapIface + |
| " %s %s %s", convertQuotedString(wifiConfig.SSID), |
| getSecurityType(wifiConfig), |
| convertQuotedString(wifiConfig.preSharedKey)); |
| mConnector.doCommand(str); |
| } |
| mConnector.doCommand(String.format("softap startap")); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon to start softap", e); |
| } |
| } |
| |
| private String convertQuotedString(String s) { |
| if (s == null) { |
| return s; |
| } |
| /* Replace \ with \\, then " with \" and add quotes at end */ |
| return '"' + s.replaceAll("\\\\","\\\\\\\\").replaceAll("\"","\\\\\"") + '"'; |
| } |
| |
| private String getSecurityType(WifiConfiguration wifiConfig) { |
| switch (wifiConfig.getAuthType()) { |
| case KeyMgmt.WPA_PSK: |
| return "wpa-psk"; |
| case KeyMgmt.WPA2_PSK: |
| return "wpa2-psk"; |
| default: |
| return "open"; |
| } |
| } |
| |
| /* @param mode can be "AP", "STA" or "P2P" */ |
| public void wifiFirmwareReload(String wlanIface, String mode) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_WIFI_STATE, "NetworkManagementService"); |
| |
| try { |
| mConnector.doCommand(String.format("softap fwreload " + wlanIface + " " + mode)); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon ", e); |
| } |
| } |
| |
| public void stopAccessPoint(String wlanIface) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_WIFI_STATE, "NetworkManagementService"); |
| try { |
| mConnector.doCommand("softap stopap"); |
| mConnector.doCommand("softap stop " + wlanIface); |
| wifiFirmwareReload(wlanIface, "STA"); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon to stop soft AP", |
| e); |
| } |
| } |
| |
| public void setAccessPoint(WifiConfiguration wifiConfig, String wlanIface, String softapIface) |
| throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_WIFI_STATE, "NetworkManagementService"); |
| try { |
| if (wifiConfig == null) { |
| mConnector.doCommand(String.format("softap set " + wlanIface + " " + softapIface)); |
| } else { |
| String str = String.format("softap set " + wlanIface + " " + softapIface |
| + " %s %s %s", convertQuotedString(wifiConfig.SSID), |
| getSecurityType(wifiConfig), |
| convertQuotedString(wifiConfig.preSharedKey)); |
| mConnector.doCommand(str); |
| } |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon to set soft AP", |
| e); |
| } |
| } |
| |
| private long getInterfaceCounter(String iface, boolean rx) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| String rsp; |
| try { |
| rsp = mConnector.doCommand( |
| String.format("interface read%scounter %s", (rx ? "rx" : "tx"), iface)).get(0); |
| } catch (NativeDaemonConnectorException e1) { |
| Slog.e(TAG, "Error communicating with native daemon", e1); |
| return -1; |
| } |
| |
| String[] tok = rsp.split(" "); |
| if (tok.length < 2) { |
| Slog.e(TAG, String.format("Malformed response for reading %s interface", |
| (rx ? "rx" : "tx"))); |
| return -1; |
| } |
| |
| int code; |
| try { |
| code = Integer.parseInt(tok[0]); |
| } catch (NumberFormatException nfe) { |
| Slog.e(TAG, String.format("Error parsing code %s", tok[0])); |
| return -1; |
| } |
| if ((rx && code != NetdResponseCode.InterfaceRxCounterResult) || ( |
| !rx && code != NetdResponseCode.InterfaceTxCounterResult)) { |
| Slog.e(TAG, String.format("Unexpected response code %d", code)); |
| return -1; |
| } |
| return Long.parseLong(tok[1]); |
| } catch (Exception e) { |
| Slog.e(TAG, String.format( |
| "Failed to read interface %s counters", (rx ? "rx" : "tx")), e); |
| } |
| return -1; |
| } |
| |
| @Override |
| public NetworkStats getNetworkStatsSummary() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| return mStatsFactory.readNetworkStatsSummary(); |
| } |
| |
| @Override |
| public NetworkStats getNetworkStatsDetail() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| return mStatsFactory.readNetworkStatsDetail(UID_ALL); |
| } |
| |
| @Override |
| public void setInterfaceQuota(String iface, long quotaBytes) { |
| mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); |
| |
| // silently discard when control disabled |
| // TODO: eventually migrate to be always enabled |
| if (!mBandwidthControlEnabled) return; |
| |
| synchronized (mQuotaLock) { |
| if (mActiveQuotaIfaces.contains(iface)) { |
| throw new IllegalStateException("iface " + iface + " already has quota"); |
| } |
| |
| final StringBuilder command = new StringBuilder(); |
| command.append("bandwidth setiquota ").append(iface).append(" ").append(quotaBytes); |
| |
| try { |
| // TODO: support quota shared across interfaces |
| mConnector.doCommand(command.toString()); |
| mActiveQuotaIfaces.add(iface); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon", e); |
| } |
| } |
| } |
| |
| @Override |
| public void removeInterfaceQuota(String iface) { |
| mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); |
| |
| // silently discard when control disabled |
| // TODO: eventually migrate to be always enabled |
| if (!mBandwidthControlEnabled) return; |
| |
| synchronized (mQuotaLock) { |
| if (!mActiveQuotaIfaces.contains(iface)) { |
| // TODO: eventually consider throwing |
| return; |
| } |
| |
| final StringBuilder command = new StringBuilder(); |
| command.append("bandwidth removeiquota ").append(iface); |
| |
| mActiveQuotaIfaces.remove(iface); |
| mActiveAlertIfaces.remove(iface); |
| |
| try { |
| // TODO: support quota shared across interfaces |
| mConnector.doCommand(command.toString()); |
| } catch (NativeDaemonConnectorException e) { |
| // TODO: include current iptables state |
| throw new IllegalStateException("Error communicating to native daemon", e); |
| } |
| } |
| } |
| |
| @Override |
| public void setInterfaceAlert(String iface, long alertBytes) { |
| mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); |
| |
| // silently discard when control disabled |
| // TODO: eventually migrate to be always enabled |
| if (!mBandwidthControlEnabled) return; |
| |
| // quick sanity check |
| if (!mActiveQuotaIfaces.contains(iface)) { |
| throw new IllegalStateException("setting alert requires existing quota on iface"); |
| } |
| |
| synchronized (mQuotaLock) { |
| if (mActiveAlertIfaces.contains(iface)) { |
| throw new IllegalStateException("iface " + iface + " already has alert"); |
| } |
| |
| final StringBuilder command = new StringBuilder(); |
| command.append("bandwidth setinterfacealert ").append(iface).append(" ").append( |
| alertBytes); |
| |
| try { |
| // TODO: support alert shared across interfaces |
| mConnector.doCommand(command.toString()); |
| mActiveAlertIfaces.add(iface); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon", e); |
| } |
| } |
| } |
| |
| @Override |
| public void removeInterfaceAlert(String iface) { |
| mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); |
| |
| // silently discard when control disabled |
| // TODO: eventually migrate to be always enabled |
| if (!mBandwidthControlEnabled) return; |
| |
| synchronized (mQuotaLock) { |
| if (!mActiveAlertIfaces.contains(iface)) { |
| // TODO: eventually consider throwing |
| return; |
| } |
| |
| final StringBuilder command = new StringBuilder(); |
| command.append("bandwidth removeinterfacealert ").append(iface); |
| |
| try { |
| // TODO: support alert shared across interfaces |
| mConnector.doCommand(command.toString()); |
| mActiveAlertIfaces.remove(iface); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon", e); |
| } |
| } |
| } |
| |
| @Override |
| public void setGlobalAlert(long alertBytes) { |
| mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); |
| |
| // silently discard when control disabled |
| // TODO: eventually migrate to be always enabled |
| if (!mBandwidthControlEnabled) return; |
| |
| final StringBuilder command = new StringBuilder(); |
| command.append("bandwidth setglobalalert ").append(alertBytes); |
| |
| try { |
| mConnector.doCommand(command.toString()); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon", e); |
| } |
| } |
| |
| @Override |
| public void setUidNetworkRules(int uid, boolean rejectOnQuotaInterfaces) { |
| mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); |
| |
| // silently discard when control disabled |
| // TODO: eventually migrate to be always enabled |
| if (!mBandwidthControlEnabled) return; |
| |
| synchronized (mUidRejectOnQuota) { |
| final boolean oldRejectOnQuota = mUidRejectOnQuota.get(uid, false); |
| if (oldRejectOnQuota == rejectOnQuotaInterfaces) { |
| // TODO: eventually consider throwing |
| return; |
| } |
| |
| final StringBuilder command = new StringBuilder(); |
| command.append("bandwidth"); |
| if (rejectOnQuotaInterfaces) { |
| command.append(" addnaughtyapps"); |
| } else { |
| command.append(" removenaughtyapps"); |
| } |
| command.append(" ").append(uid); |
| |
| try { |
| mConnector.doCommand(command.toString()); |
| if (rejectOnQuotaInterfaces) { |
| mUidRejectOnQuota.put(uid, true); |
| } else { |
| mUidRejectOnQuota.delete(uid); |
| } |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon", e); |
| } |
| } |
| } |
| |
| @Override |
| public boolean isBandwidthControlEnabled() { |
| mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); |
| return mBandwidthControlEnabled; |
| } |
| |
| @Override |
| public NetworkStats getNetworkStatsUidDetail(int uid) { |
| if (Binder.getCallingUid() != uid) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| } |
| return mStatsFactory.readNetworkStatsDetail(uid); |
| } |
| |
| @Override |
| public NetworkStats getNetworkStatsTethering(String[] ifacePairs) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| |
| if (ifacePairs.length % 2 != 0) { |
| throw new IllegalArgumentException( |
| "unexpected ifacePairs; length=" + ifacePairs.length); |
| } |
| |
| final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 1); |
| for (int i = 0; i < ifacePairs.length; i += 2) { |
| final String ifaceIn = ifacePairs[i]; |
| final String ifaceOut = ifacePairs[i + 1]; |
| if (ifaceIn != null && ifaceOut != null) { |
| stats.combineValues(getNetworkStatsTethering(ifaceIn, ifaceOut)); |
| } |
| } |
| return stats; |
| } |
| |
| private NetworkStats.Entry getNetworkStatsTethering(String ifaceIn, String ifaceOut) { |
| final StringBuilder command = new StringBuilder(); |
| command.append("bandwidth gettetherstats ").append(ifaceIn).append(" ").append(ifaceOut); |
| |
| final String rsp; |
| try { |
| rsp = mConnector.doCommand(command.toString()).get(0); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException("Error communicating to native daemon", e); |
| } |
| |
| final String[] tok = rsp.split(" "); |
| /* Expecting: "code ifaceIn ifaceOut rx_bytes rx_packets tx_bytes tx_packets" */ |
| if (tok.length != 7) { |
| throw new IllegalStateException("Native daemon returned unexpected result: " + rsp); |
| } |
| |
| final int code; |
| try { |
| code = Integer.parseInt(tok[0]); |
| } catch (NumberFormatException e) { |
| throw new IllegalStateException( |
| "Failed to parse native daemon return code for " + ifaceIn + " " + ifaceOut); |
| } |
| if (code != NetdResponseCode.TetheringStatsResult) { |
| throw new IllegalStateException( |
| "Unexpected return code from native daemon for " + ifaceIn + " " + ifaceOut); |
| } |
| |
| try { |
| final NetworkStats.Entry entry = new NetworkStats.Entry(); |
| entry.iface = ifaceIn; |
| entry.uid = UID_TETHERING; |
| entry.set = SET_DEFAULT; |
| entry.tag = TAG_NONE; |
| entry.rxBytes = Long.parseLong(tok[3]); |
| entry.rxPackets = Long.parseLong(tok[4]); |
| entry.txBytes = Long.parseLong(tok[5]); |
| entry.txPackets = Long.parseLong(tok[6]); |
| return entry; |
| } catch (NumberFormatException e) { |
| throw new IllegalStateException( |
| "problem parsing tethering stats for " + ifaceIn + " " + ifaceOut + ": " + e); |
| } |
| } |
| |
| public void setInterfaceThrottle(String iface, int rxKbps, int txKbps) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| mConnector.doCommand(String.format( |
| "interface setthrottle %s %d %d", iface, rxKbps, txKbps)); |
| } catch (NativeDaemonConnectorException e) { |
| Slog.e(TAG, "Error communicating with native daemon to set throttle", e); |
| } |
| } |
| |
| private int getInterfaceThrottle(String iface, boolean rx) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| String rsp; |
| try { |
| rsp = mConnector.doCommand( |
| String.format("interface getthrottle %s %s", iface, |
| (rx ? "rx" : "tx"))).get(0); |
| } catch (NativeDaemonConnectorException e) { |
| Slog.e(TAG, "Error communicating with native daemon to getthrottle", e); |
| return -1; |
| } |
| |
| String[] tok = rsp.split(" "); |
| if (tok.length < 2) { |
| Slog.e(TAG, "Malformed response to getthrottle command"); |
| return -1; |
| } |
| |
| int code; |
| try { |
| code = Integer.parseInt(tok[0]); |
| } catch (NumberFormatException nfe) { |
| Slog.e(TAG, String.format("Error parsing code %s", tok[0])); |
| return -1; |
| } |
| if ((rx && code != NetdResponseCode.InterfaceRxThrottleResult) || ( |
| !rx && code != NetdResponseCode.InterfaceTxThrottleResult)) { |
| Slog.e(TAG, String.format("Unexpected response code %d", code)); |
| return -1; |
| } |
| return Integer.parseInt(tok[1]); |
| } catch (Exception e) { |
| Slog.e(TAG, String.format( |
| "Failed to read interface %s throttle value", (rx ? "rx" : "tx")), e); |
| } |
| return -1; |
| } |
| |
| public int getInterfaceRxThrottle(String iface) { |
| return getInterfaceThrottle(iface, true); |
| } |
| |
| public int getInterfaceTxThrottle(String iface) { |
| return getInterfaceThrottle(iface, false); |
| } |
| |
| public void setDefaultInterfaceForDns(String iface) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| String cmd = "resolver setdefaultif " + iface; |
| |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Error communicating with native daemon to set default interface", e); |
| } |
| } |
| |
| public void setDnsServersForInterface(String iface, String[] servers) |
| throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.CHANGE_NETWORK_STATE, |
| "NetworkManagementService"); |
| try { |
| String cmd = "resolver setifdns " + iface; |
| for (String s : servers) { |
| InetAddress a = NetworkUtils.numericToInetAddress(s); |
| if (a.isAnyLocalAddress() == false) { |
| cmd += " " + a.getHostAddress(); |
| } |
| } |
| mConnector.doCommand(cmd); |
| } catch (IllegalArgumentException e) { |
| throw new IllegalStateException("Error setting dnsn for interface", e); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Error communicating with native daemon to set dns for interface", e); |
| } |
| } |
| |
| public void flushDefaultDnsCache() throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| String cmd = "resolver flushdefaultif"; |
| |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Error communicating with native deamon to flush default interface", e); |
| } |
| } |
| |
| public void flushInterfaceDnsCache(String iface) throws IllegalStateException { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService"); |
| try { |
| String cmd = "resolver flushif " + iface; |
| |
| mConnector.doCommand(cmd); |
| } catch (NativeDaemonConnectorException e) { |
| throw new IllegalStateException( |
| "Error communicating with native daemon to flush interface " + iface, e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| public void monitor() { |
| if (mConnector != null) { |
| mConnector.monitor(); |
| } |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| mContext.enforceCallingOrSelfPermission(DUMP, TAG); |
| |
| pw.print("Bandwidth control enabled: "); pw.println(mBandwidthControlEnabled); |
| |
| synchronized (mQuotaLock) { |
| pw.print("Active quota ifaces: "); pw.println(mActiveQuotaIfaces.toString()); |
| pw.print("Active alert ifaces: "); pw.println(mActiveAlertIfaces.toString()); |
| } |
| |
| synchronized (mUidRejectOnQuota) { |
| pw.print("UID reject on quota ifaces: ["); |
| final int size = mUidRejectOnQuota.size(); |
| for (int i = 0; i < size; i++) { |
| pw.print(mUidRejectOnQuota.keyAt(i)); |
| if (i < size - 1) pw.print(","); |
| } |
| pw.println("]"); |
| } |
| } |
| } |
