[移动开发]WakeLock 异常管控测试apk-wakeLock攻击者开发

摘要

APP 目的

该APP作用：存在2个wakeLock，旨在触发功耗异常中的wakeLock频繁唤醒的检测

1. 永久不释放wakeLock
2. 定时申请和释放wakeLock

测试方法：

1. H手机和T手机、其他手机进行安装该apk.
2. 所有手机都需要设置应用为白名单。
   H手机：手机管家->应用启动设置：允许自启动、允许关联启动、允许后台启动
   

T手机：手机管家->自启动管理：允许自启动
3. 启动该apk，并看到有消息通知栏出现，则按home键回到桌面，拔USB，灭屏5分钟
4. 灭屏5分钟后，亮屏查看是否有耗电异常被检测出来。例如下图

APP demo

1. 界面

package com.sufadi.blockwakelock

import android.content.Intent
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import com.sufadi.commlib.services.ForegroundService


class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        // 设置进程优先级为前台，基本保活
        startService(Intent(this, ForegroundService::class.java))

        /**
         * 设置多个wakeLock
         * 1. 永远存在一个不释放的锁
         * 2. 定时锁，每隔1分钟申请一次锁
         */
        startService(Intent(this, WakeLockServicer::class.java))
    }
}

1.1 前台进程设置

核心函数：startForeground

package com.sufadi.commlib.services

import android.content.Intent
import android.os.IBinder
import android.app.*
import android.content.Context
import android.util.Log
import com.sufadi.commlib.R

class ForegroundService: Service() {

    val TAG = "ForegroundService"
    val FORGROUND_ID = 0x88

    override fun onCreate() {
        super.onCreate()
        startMyForeground()
    }

    override fun onDestroy() {
        super.onDestroy()
        stopForeground(true)
    }

    override fun onBind(intent: Intent?): IBinder? {
        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
    }

    private fun startMyForeground() {
        Log.d(TAG, "startMyForeground show notification")
        Log.d(TAG, "PhoneDataService startMyForeground sdk :" + android.os.Build.VERSION.SDK_INT)
        val nb = Notification.Builder(this)

        if (android.os.Build.VERSION.SDK_INT >= 26) {
            val CHANNEL_ONE_ID = "channel_id_foreground"
            val CHANNEL_ONE_NAME = "Channel One"
            var notificationChannel: NotificationChannel? = null

            notificationChannel = NotificationChannel(
                CHANNEL_ONE_ID,
                CHANNEL_ONE_NAME, NotificationManager.IMPORTANCE_LOW
            )

            nb.setChannelId(CHANNEL_ONE_ID)

            val manager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
            manager.createNotificationChannel(notificationChannel)
        }

        nb.setSmallIcon(R.mipmap.ic_launcher)
        nb.setContentTitle(getString(R.string.notification_title))
        nb.setContentText(getString(R.string.notification_Content))

        try {
            startForeground(FORGROUND_ID, nb.build())
        } catch (e: Exception) {
            e.printStackTrace()
        }

    }
}

2. WakeLock的申请

设置多个wakeLock

1. 永远存在一个不释放的锁
2. 定时锁，每隔1分钟申请一次锁

上述主要使用wakeLock和Alarm的SDK即可

package com.sufadi.blockwakelock

import android.annotation.SuppressLint
import android.app.AlarmManager
import android.app.Service
import android.content.Context
import android.content.Intent
import android.os.IBinder
import android.os.PowerManager
import android.os.SystemClock
import android.util.Log
import com.sufadi.commlib.utils.AlertWakeLock

/**
 * 设置多个wakeLock
 * 1. 永远存在一个不释放的锁
 * 2. 定时锁，每隔1分钟申请一次锁
 */
class WakeLockServicer: Service() {

    companion object {
        val TAG_NORMAL_WAKELOCK = "tag_normal_wakelock"
        val TAG_NEVER_RELEASE_WAKELOCK = "tag_never_release_wakelock"
    }

    private var count = 0
    private var mNormalWakeLock: PowerManager.WakeLock? = null
    private var mNeverReleaseWakeLock: PowerManager.WakeLock? = null
    private var mAlarm: AlarmManager? = null
    private var mAlarmListener: AlarmManager.OnAlarmListener? = null

    override fun onBind(p0: Intent?): IBinder? {
        return null
    }

    /*
        Flag Value                 CPU        Screen      Keyboard
        PARTIAL_WAKE_LOCK            On           Off         Off 0x00000001 1
        SCREEN_DIM_WAKE_LOCK         On           Dim         Off 0x00000006 6
        SCREEN_BRIGHT_WAKE_LOCK      On           Bright      Off 0x0000000a 10
        FULL_WAKE_LOCK               On           Bright      Bright 0x0000001a 26
    */
    @SuppressLint("InvalidWakeLockTag")
    override fun onCreate() {
        super.onCreate()
        mAlarm = getSystemService(Context.ALARM_SERVICE) as AlarmManager
        val pm = getSystemService(Context.POWER_SERVICE) as PowerManager

        mNormalWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG_NORMAL_WAKELOCK)
        mNeverReleaseWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG_NEVER_RELEASE_WAKELOCK)

        mNormalWakeLock?.acquire()
        mNeverReleaseWakeLock?.acquire()

        setAlarm(60000, "wakelock acquire count:" + count++)
        Log.d("WakelockStats", "NeverReleaseWakeLock.acquire() & NormalWakeLock.acquire()")
    }

    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {



        return super.onStartCommand(intent, flags, startId)

    }

    override fun onDestroy() {
        super.onDestroy()
        mNormalWakeLock?.release()
        mNeverReleaseWakeLock?.release()
        Log.d("WakelockStats", "NeverReleaseWakeLock.onDestroy() & NormalWakeLock.onDestroy()")
    }

    private fun setAlarm(delay: Long, reason: String) {
        val mNextAlarmTime = SystemClock.elapsedRealtime() + delay
        if (mAlarmListener == null) {
            mAlarmListener = AlarmManager.OnAlarmListener {
                mNormalWakeLock?.release()
                mNormalWakeLock?.acquire()
                Log.d("WakelockStats", "NormalWakeLock.release() & NormalWakeLock.acquire()")
            }
        }
        mAlarm?.setWindow(AlarmManager.ELAPSED_REALTIME_WAKEUP, mNextAlarmTime, 0, reason, mAlarmListener, null)
    }

}

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