1 /*
2  * Copyright (C) 2021 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 com.android.server.connectivity.mdns;
18 
19 /**
20  * mDNS configuration values.
21  *
22  * TODO: consider making some of these adjustable via flags.
23  */
24 public class MdnsConfigs {
castShellEmulatorMdnsPorts()25     public static String[] castShellEmulatorMdnsPorts() {
26         return new String[0];
27     }
28 
initialTimeBetweenBurstsMs()29     public static long initialTimeBetweenBurstsMs() {
30         return 5000L;
31     }
32 
timeBetweenBurstsMs()33     public static long timeBetweenBurstsMs() {
34         return 20_000L;
35     }
36 
queriesPerBurst()37     public static int queriesPerBurst() {
38         return 3;
39     }
40 
timeBetweenQueriesInBurstMs()41     public static long timeBetweenQueriesInBurstMs() {
42         return 1000L;
43     }
44 
queriesPerBurstPassive()45     public static int queriesPerBurstPassive() {
46         return 1;
47     }
48 
alwaysAskForUnicastResponseInEachBurst()49     public static boolean alwaysAskForUnicastResponseInEachBurst() {
50         return false;
51     }
52 
sleepTimeForSocketThreadMs()53     public static long sleepTimeForSocketThreadMs() {
54         return 20_000L;
55     }
56 
checkMulticastResponse()57     public static boolean checkMulticastResponse() {
58         return false;
59     }
60 
useSeparateSocketToSendUnicastQuery()61     public static boolean useSeparateSocketToSendUnicastQuery() {
62         return false;
63     }
64 
checkMulticastResponseIntervalMs()65     public static long checkMulticastResponseIntervalMs() {
66         return 10_000L;
67     }
68 
clearMdnsPacketQueueAfterDiscoveryStops()69     public static boolean clearMdnsPacketQueueAfterDiscoveryStops() {
70         return true;
71     }
72 
allowAddMdnsPacketAfterDiscoveryStops()73     public static boolean allowAddMdnsPacketAfterDiscoveryStops() {
74         return false;
75     }
76 
mdnsPacketQueueMaxSize()77     public static int mdnsPacketQueueMaxSize() {
78         return Integer.MAX_VALUE;
79     }
80 
preferIpv6()81     public static boolean preferIpv6() {
82         return false;
83     }
84 
removeServiceAfterTtlExpires()85     public static boolean removeServiceAfterTtlExpires() {
86         return false;
87     }
88 
allowNetworkInterfaceIndexPropagation()89     public static boolean allowNetworkInterfaceIndexPropagation() {
90         return true;
91     }
92 
allowMultipleSrvRecordsPerHost()93     public static boolean allowMultipleSrvRecordsPerHost() {
94         return true;
95     }
96 }