Merge "Delete NetworkManagementSocketTagger."

This commit is contained in:
Treehugger Robot
2022-02-01 12:32:04 +00:00
committed by Gerrit Code Review

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@@ -1,116 +0,0 @@
/*
* 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 com.android.server;
import android.os.StrictMode;
import android.util.Log;
import dalvik.system.SocketTagger;
import java.io.FileDescriptor;
import java.net.SocketException;
/**
* Assigns tags to sockets for traffic stats.
* @hide
*/
public final class NetworkManagementSocketTagger extends SocketTagger {
private static final String TAG = "NetworkManagementSocketTagger";
private static final boolean LOGD = false;
private static ThreadLocal<SocketTags> threadSocketTags = new ThreadLocal<SocketTags>() {
@Override
protected SocketTags initialValue() {
return new SocketTags();
}
};
public static void install() {
SocketTagger.set(new NetworkManagementSocketTagger());
}
public static int setThreadSocketStatsTag(int tag) {
final int old = threadSocketTags.get().statsTag;
threadSocketTags.get().statsTag = tag;
return old;
}
public static int getThreadSocketStatsTag() {
return threadSocketTags.get().statsTag;
}
public static int setThreadSocketStatsUid(int uid) {
final int old = threadSocketTags.get().statsUid;
threadSocketTags.get().statsUid = uid;
return old;
}
public static int getThreadSocketStatsUid() {
return threadSocketTags.get().statsUid;
}
@Override
public void tag(FileDescriptor fd) throws SocketException {
final SocketTags options = threadSocketTags.get();
if (LOGD) {
Log.d(TAG, "tagSocket(" + fd.getInt$() + ") with statsTag=0x"
+ Integer.toHexString(options.statsTag) + ", statsUid=" + options.statsUid);
}
if (options.statsTag == -1) {
StrictMode.noteUntaggedSocket();
}
// TODO: skip tagging when options would be no-op
tagSocketFd(fd, options.statsTag, options.statsUid);
}
private void tagSocketFd(FileDescriptor fd, int tag, int uid) {
if (tag == -1 && uid == -1) return;
final int errno = native_tagSocketFd(fd, tag, uid);
if (errno < 0) {
Log.i(TAG, "tagSocketFd(" + fd.getInt$() + ", "
+ tag + ", "
+ uid + ") failed with errno" + errno);
}
}
@Override
public void untag(FileDescriptor fd) throws SocketException {
if (LOGD) {
Log.i(TAG, "untagSocket(" + fd.getInt$() + ")");
}
unTagSocketFd(fd);
}
private void unTagSocketFd(FileDescriptor fd) {
final SocketTags options = threadSocketTags.get();
if (options.statsTag == -1 && options.statsUid == -1) return;
final int errno = native_untagSocketFd(fd);
if (errno < 0) {
Log.w(TAG, "untagSocket(" + fd.getInt$() + ") failed with errno " + errno);
}
}
public static class SocketTags {
public int statsTag = -1;
public int statsUid = -1;
}
private static native int native_tagSocketFd(FileDescriptor fd, int tag, int uid);
private static native int native_untagSocketFd(FileDescriptor fd);
}