1 /*
2  *  Copyright (c) 2021, The OpenThread Authors.
3  *  All rights reserved.
4  *
5  *  Redistribution and use in source and binary forms, with or without
6  *  modification, are permitted provided that the following conditions are met:
7  *  1. Redistributions of source code must retain the above copyright
8  *     notice, this list of conditions and the following disclaimer.
9  *  2. Redistributions in binary form must reproduce the above copyright
10  *     notice, this list of conditions and the following disclaimer in the
11  *     documentation and/or other materials provided with the distribution.
12  *  3. Neither the name of the copyright holder nor the
13  *     names of its contributors may be used to endorse or promote products
14  *     derived from this software without specific prior written permission.
15  *
16  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  *  POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 /**
30  * @file
31  *   This file includes compile-time configurations for Network Data Publisher.
32  *
33  */
34 
35 #ifndef CONFIG_NETDATA_PUBLISHER_H_
36 #define CONFIG_NETDATA_PUBLISHER_H_
37 
38 #include "config/srp_server.h"
39 
40 /**
41  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_ENABLE
42  *
43  * Define to 1 to enable Network Data Publisher.
44  *
45  * Network Data Publisher provides mechanisms to limit the number of similar Service and/or Prefix (on-mesh prefix
46  * or external route) entries in the Thread Network Data by monitoring the Network Data and managing if or when to add
47  * or remove entries.
48  *
49  */
50 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_ENABLE
51 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_ENABLE OPENTHREAD_CONFIG_SRP_SERVER_ENABLE
52 #endif
53 
54 /**
55  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_ADD
56  *
57  * Specifies the maximum value (in milliseconds) of the random delay used before adding an entry in the Thread Network
58  * Data.
59  *
60  */
61 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_ADD
62 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_ADD 3500
63 #endif
64 
65 /**
66  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE
67  *
68  * Specifies the maximum value (in milliseconds) of the random wait time used before removing an entry from the Thread
69  * Network Data.
70  *
71  */
72 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE
73 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE 15000
74 #endif
75 
76 /**
77  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED
78  *
79  * Specifies the extra wait time (in milliseconds) used when removing a preferred entry.
80  *
81  * When removing entries, certain entries are preferred over others. How the preference is determined depends on the
82  * entry type (e.g., (for DNS/SRP service entries associated with smaller RLOC16 or smaller IPv6 address are preferred).
83  * If the `Publisher` determines that its own entry is a preferred one, it adds the above extra wait time in addition
84  * to the random wait selected based on `OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE` before removing
85  * its entry. This gives higher chance for a non-preferred entry from another device to be removed before removing a
86  * preferred entry which helps towards quicker convergence of the process to the desired number of entries.
87  *
88  * It is recommended that `OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED` to be set to a
89  * value larger than `OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE` to ensure that non-preferred entries
90  * are removed first.
91  *
92  */
93 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED
94 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED 16000
95 #endif
96 
97 /**
98  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ANYCAST_DNS_SRP_SERVICE_ENTRIES
99  *
100  * Specifies the desired number of "DNS/SRP Service Anycast Address" entries in the Thread Network Data.
101  *
102  * Publisher attempts to limit the number of such entries to this value.
103  *
104  */
105 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ANYCAST_DNS_SRP_SERVICE_ENTRIES
106 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ANYCAST_DNS_SRP_SERVICE_ENTRIES 8
107 #endif
108 
109 /**
110  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_UNICAST_DNS_SRP_SERVICE_ENTRIES
111  *
112  * Specifies the desired number of "DNS/SRP Service Anycast Address" entries in the Thread Network Data.
113  *
114  * Publisher attempts to limit the number of such entries to this value.
115  *
116  */
117 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_UNICAST_DNS_SRP_SERVICE_ENTRIES
118 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_UNICAST_DNS_SRP_SERVICE_ENTRIES 2
119 #endif
120 
121 /**
122  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ON_MESH_PREFIX_ENTRIES
123  *
124  * Specifies the desired number of matching On-mesh Prefix entries in the Thread Network Data.
125  *
126  * Publisher attempts to limit the number of matching entries to this value.
127  *
128  */
129 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ON_MESH_PREFIX_ENTRIES
130 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ON_MESH_PREFIX_ENTRIES 3
131 #endif
132 
133 /**
134  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_EXTERNAL_ROUTE_ENTRIES
135  *
136  * Specifies the desired number of matching External Route entries in the Thread Network Data.
137  *
138  * Publisher attempts to limit the number of matching entries to this value.
139  *
140  */
141 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_EXTERNAL_ROUTE_ENTRIES
142 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_EXTERNAL_ROUTE_ENTRIES 10
143 #endif
144 
145 /**
146  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_PREFIX_ENTRIES
147  *
148  * Specifies maximum number of prefix (on-mesh prefix or external route) entries supported by Publisher.
149  *
150  */
151 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_PREFIX_ENTRIES
152 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_PREFIX_ENTRIES 3
153 #endif
154 
155 #endif // CONFIG_NETDATA_PUBLISHER_H_
156