content: /*
   * Copyright (C) 2019 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.internal.util;
  
  /**
   * Constants for traffic stats.
   * @hide
   */
  public class TrafficStatsConstants {
      // These tags are used by the network stack to do traffic for its own purposes. Traffic
      // tagged with these will be counted toward the network stack and must stay inside the
      // range defined by
      // {@link android.net.TrafficStats#TAG_NETWORK_STACK_RANGE_START} and
      // {@link android.net.TrafficStats#TAG_NETWORK_STACK_RANGE_END}.
      public static final int TAG_SYSTEM_DHCP = 0xFFFFFE01;
      public static final int TAG_SYSTEM_NEIGHBOR = 0xFFFFFE02;
      public static final int TAG_SYSTEM_DHCP_SERVER = 0xFFFFFE03;
  
      public static final int TAG_SYSTEM_NTP = 0xFFFFFF41;
      public static final int TAG_SYSTEM_GPS = 0xFFFFFF44;
      public static final int TAG_SYSTEM_PAC = 0xFFFFFF45;
  
      // These tags are used by the network stack to do traffic on behalf of apps. Traffic
      // tagged with these will be counted toward the app on behalf of which the network
      // stack is doing this traffic. These values must stay inside the range defined by
      // {@link android.net.TrafficStats#TAG_NETWORK_STACK_IMPERSONATION_RANGE_START} and
      // {@link android.net.TrafficStats#TAG_NETWORK_STACK_IMPERSONATION_RANGE_END}.
      public static final int TAG_SYSTEM_PROBE = 0xFFFFFF81;
  }
  