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/*
* Copyright 2024 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.
*/
// @file:JvmName("ActiveLogs")
package com.android.server.bluetooth
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_AIRPLANE_MODE
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_APPLICATION_REQUEST
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_CRASH
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_DISALLOWED
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_FACTORY_RESET
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_RESTARTED
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_RESTORE_USER_SETTING
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_SATELLITE_MODE
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_START_ERROR
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_SYSTEM_BOOT
import android.bluetooth.BluetoothProtoEnums.ENABLE_DISABLE_REASON_USER_SWITCH
import android.os.Binder
import androidx.annotation.VisibleForTesting
import com.android.bluetooth.BluetoothStatsLog
import com.android.bluetooth.BluetoothStatsLog.BLUETOOTH_ENABLED_STATE_CHANGED
import com.android.bluetooth.BluetoothStatsLog.BLUETOOTH_ENABLED_STATE_CHANGED__STATE__DISABLED
import com.android.bluetooth.BluetoothStatsLog.BLUETOOTH_ENABLED_STATE_CHANGED__STATE__ENABLED
import com.android.bluetooth.BluetoothStatsLog.BLUETOOTH_ENABLED_STATE_CHANGED__STATE__UNKNOWN
import java.io.PrintWriter
private const val TAG = "ActiveLogs"
object ActiveLogs {
@VisibleForTesting internal const val MAX_ENTRIES_STORED = 20
@VisibleForTesting
internal val activeLogs: ArrayDeque<ActiveLog> = ArrayDeque(MAX_ENTRIES_STORED)
@JvmStatic
fun dump(writer: PrintWriter) {
if (activeLogs.isEmpty()) {
writer.println("Bluetooth never enabled!")
} else {
writer.println("Enable log:")
activeLogs.forEach { writer.println(" $it") }
}
}
@JvmStatic
fun add(reason: Int, enable: Boolean) {
add(reason, enable, "BluetoothSystemServer", false)
}
@JvmStatic
fun add(reason: Int, enable: Boolean, packageName: String, isBle: Boolean) {
val last = activeLogs.lastOrNull()
if (activeLogs.size == MAX_ENTRIES_STORED) {
activeLogs.removeFirst()
}
activeLogs.addLast(ActiveLog(reason, packageName, enable, isBle))
val state =
if (enable) BLUETOOTH_ENABLED_STATE_CHANGED__STATE__ENABLED
else BLUETOOTH_ENABLED_STATE_CHANGED__STATE__DISABLED
val lastState: Int
val timeSinceLastChanged: Long
if (last != null) {
lastState =
if (last.enable) BLUETOOTH_ENABLED_STATE_CHANGED__STATE__ENABLED
else BLUETOOTH_ENABLED_STATE_CHANGED__STATE__DISABLED
timeSinceLastChanged = System.currentTimeMillis() - last.timestamp
} else {
lastState = BLUETOOTH_ENABLED_STATE_CHANGED__STATE__UNKNOWN
timeSinceLastChanged = 0
}
BluetoothStatsLog.write_non_chained(
BLUETOOTH_ENABLED_STATE_CHANGED,
Binder.getCallingUid(),
null,
state,
reason,
packageName,
lastState,
timeSinceLastChanged,
)
}
}
@VisibleForTesting
internal class ActiveLog(
private val reason: Int,
private val packageName: String,
val enable: Boolean,
private val isBle: Boolean,
) {
val timestamp = System.currentTimeMillis()
init {
Log.d(TAG, this.toString())
}
override fun toString() =
Log.timeToStringWithZone(timestamp) +
" \tPackage [$packageName] requested to [" +
(if (enable) "Enable" else "Disable") +
(if (isBle) "Ble" else "") +
"]. \tReason is " +
getEnableDisableReasonString(reason)
}
private fun getEnableDisableReasonString(reason: Int): String {
return when (reason) {
ENABLE_DISABLE_REASON_APPLICATION_REQUEST -> "APPLICATION_REQUEST"
ENABLE_DISABLE_REASON_AIRPLANE_MODE -> "AIRPLANE_MODE"
ENABLE_DISABLE_REASON_DISALLOWED -> "DISALLOWED"
ENABLE_DISABLE_REASON_RESTARTED -> "RESTARTED"
ENABLE_DISABLE_REASON_START_ERROR -> "START_ERROR"
ENABLE_DISABLE_REASON_SYSTEM_BOOT -> "SYSTEM_BOOT"
ENABLE_DISABLE_REASON_CRASH -> "CRASH"
ENABLE_DISABLE_REASON_USER_SWITCH -> "USER_SWITCH"
ENABLE_DISABLE_REASON_RESTORE_USER_SETTING -> "RESTORE_USER_SETTING"
ENABLE_DISABLE_REASON_FACTORY_RESET -> "FACTORY_RESET"
ENABLE_DISABLE_REASON_SATELLITE_MODE -> "SATELLITE MODE"
else -> "UNKNOWN[$reason]"
}
}
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