Hugo Benichi | 25bf8f5 | 2016-04-19 09:52:39 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.net.metrics; |
| 18 | |
| 19 | import android.annotation.SystemApi; |
| 20 | import android.os.Parcel; |
| 21 | import android.os.Parcelable; |
| 22 | |
| 23 | /** |
| 24 | * {@hide} |
| 25 | */ |
| 26 | @SystemApi |
| 27 | public final class IpReachabilityEvent extends IpConnectivityEvent implements Parcelable { |
| 28 | |
| 29 | public static final int PROBE = 1 << 8; |
| 30 | public static final int NUD_FAILED = 2 << 8; |
| 31 | public static final int PROVISIONING_LOST = 3 << 8; |
| 32 | |
| 33 | public final String ifName; |
| 34 | // eventType byte format (MSB to LSB): |
| 35 | // byte 0: unused |
| 36 | // byte 1: unused |
| 37 | // byte 2: type of event: PROBE, NUD_FAILED, PROVISIONING_LOST |
| 38 | // byte 3: kernel errno from RTNetlink or IpReachabilityMonitor |
| 39 | public final int eventType; |
| 40 | |
| 41 | private IpReachabilityEvent(String ifName, int eventType) { |
| 42 | this.ifName = ifName; |
| 43 | this.eventType = eventType; |
| 44 | } |
| 45 | |
| 46 | private IpReachabilityEvent(Parcel in) { |
| 47 | this.ifName = in.readString(); |
| 48 | this.eventType = in.readInt(); |
| 49 | } |
| 50 | |
| 51 | public void writeToParcel(Parcel out, int flags) { |
| 52 | out.writeString(ifName); |
| 53 | out.writeInt(eventType); |
| 54 | } |
| 55 | |
| 56 | public int describeContents() { |
| 57 | return 0; |
| 58 | } |
| 59 | |
| 60 | public static final Parcelable.Creator<IpReachabilityEvent> CREATOR |
| 61 | = new Parcelable.Creator<IpReachabilityEvent>() { |
| 62 | public IpReachabilityEvent createFromParcel(Parcel in) { |
| 63 | return new IpReachabilityEvent(in); |
| 64 | } |
| 65 | |
| 66 | public IpReachabilityEvent[] newArray(int size) { |
| 67 | return new IpReachabilityEvent[size]; |
| 68 | } |
| 69 | }; |
| 70 | |
| 71 | public static void logProbeEvent(String ifName, int nlErrorCode) { |
| 72 | final int tag = (nlErrorCode == 0) ? IPCE_IPRM_PROBE_STARTED : IPCE_IPRM_PROBE_FAILURE; |
| 73 | final int eventType = PROBE | (nlErrorCode & 0xFF); |
| 74 | logEvent(tag, new IpReachabilityEvent(ifName, eventType)); |
| 75 | } |
| 76 | |
| 77 | public static void logNudFailed(String ifName) { |
| 78 | logEvent(IPCE_IPRM_NUD_FAILED, new IpReachabilityEvent(ifName, NUD_FAILED)); |
| 79 | } |
| 80 | |
| 81 | public static void logProvisioningLost(String ifName) { |
| 82 | logEvent(IPCE_IPRM_PROVISIONING_LOST, new IpReachabilityEvent(ifName, PROVISIONING_LOST)); |
| 83 | } |
| 84 | }; |