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/*
*Copyright (c) 2015, The Linux Foundation. All rights reserved.
*
*Redistribution and use in source and binary forms, with or without
*modification, are permitted provided that the following conditions are
*met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
*THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
*WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
*MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
*ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
*BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
*CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
*SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
*BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
*WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
*OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
*IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.android.server;
import dalvik.system.PathClassLoader;
import android.util.Slog;
import android.net.Network;
import android.net.NetworkStats;
import android.util.Log;
public class NetPluginDelegate {
private static final String TAG = "ConnectivityExtension";
private static final boolean LOGV = false;
private static Class tetherExtensionClass = null;
private static Object tetherExtensionObj = null;
private static boolean extensionFailed;
public static void getTetherStats(NetworkStats uidStats, NetworkStats devStats,
NetworkStats xtStats) {
if (!loadTetherExtJar()) {
return;
}
try {
tetherExtensionClass.getMethod("getTetherStats", NetworkStats.class,
NetworkStats.class, NetworkStats.class).invoke(tetherExtensionObj, uidStats,
devStats, xtStats);
} catch (Exception e) {
e.printStackTrace();
Log.w(TAG, "error in invoke method");
}
if (LOGV) Slog.v(TAG, "getTetherStats() X");
}
public static void setQuota(String iface, long quota) {
if (!loadTetherExtJar()) {
return;
}
try {
tetherExtensionClass.getMethod("setQuota", String.class, long.class).invoke(
tetherExtensionObj, iface, quota);
} catch (Exception ex) {
Log.w(TAG, "Error calling setQuota Method on extension jar");
}
if (LOGV) Slog.v(TAG, "setQuota(" + iface + ", " + quota + ") X");
}
public static void setUpstream(Network net) {
if (LOGV) Slog.v(TAG, "setUpstream(" + net + ") E");
loadTetherExtJar();
try {
tetherExtensionClass.getMethod("setUpstream", Network.class).invoke(
tetherExtensionObj, net);
} catch (Exception ex) {
Log.w(TAG, "Error calling setUpstream Method on extension jar");
}
if (LOGV) Slog.v(TAG, "setUpstream(" + net + ") E");
}
private static boolean loadTetherExtJar() {
final String realProvider = "com.qualcomm.qti.tetherstatsextension.TetherStatsReporting";
final String realProviderPath = "/system/framework/ConnectivityExt.jar";
if (!extensionFailed && tetherExtensionClass == null && tetherExtensionObj == null) {
if (LOGV) Slog.v(TAG, "loading ConnectivityExt jar");
try {
PathClassLoader classLoader = new PathClassLoader(realProviderPath,
ClassLoader.getSystemClassLoader());
tetherExtensionClass = classLoader.loadClass(realProvider);
tetherExtensionObj = tetherExtensionClass.newInstance();
if (LOGV)
Slog.v(TAG, "ConnectivityExt jar loaded");
extensionFailed = false;
} catch (Exception e) {
Log.w(TAG, "Connectivity extension is not available");
extensionFailed = true;
}
}
return !extensionFailed;
}
}
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