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/border_router.h"
39 #include "config/border_routing.h"
40 #include "config/srp_server.h"
41 
42 /**
43  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_ENABLE
44  *
45  * Define to 1 to enable Network Data Publisher.
46  *
47  * Network Data Publisher provides mechanisms to limit the number of similar Service and/or Prefix (on-mesh prefix
48  * or external route) entries in the Thread Network Data by monitoring the Network Data and managing if or when to add
49  * or remove entries.
50  *
51  */
52 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_ENABLE
53 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_ENABLE \
54     (OPENTHREAD_CONFIG_SRP_SERVER_ENABLE || OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE)
55 #endif
56 
57 /**
58  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_ADD
59  *
60  * Specifies the maximum value (in milliseconds) of the random delay used before adding an entry in the Thread Network
61  * Data.
62  *
63  */
64 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_ADD
65 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_ADD 3500
66 #endif
67 
68 /**
69  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE
70  *
71  * Specifies the maximum value (in milliseconds) of the random wait time used before removing an entry from the Thread
72  * Network Data.
73  *
74  */
75 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE
76 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE 15000
77 #endif
78 
79 /**
80  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED
81  *
82  * Specifies the extra wait time (in milliseconds) used when removing a preferred entry.
83  *
84  * When removing entries, certain entries are preferred over others. How the preference is determined depends on the
85  * entry type (e.g., (for DNS/SRP service entries associated with smaller RLOC16 or smaller IPv6 address are preferred).
86  * If the `Publisher` determines that its own entry is a preferred one, it adds the above extra wait time in addition
87  * to the random wait selected based on `OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE` before removing
88  * its entry. This gives higher chance for a non-preferred entry from another device to be removed before removing a
89  * preferred entry which helps towards quicker convergence of the process to the desired number of entries.
90  *
91  * It is recommended that `OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED` to be set to a
92  * value larger than `OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE` to ensure that non-preferred entries
93  * are removed first.
94  *
95  */
96 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED
97 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED 16000
98 #endif
99 
100 /**
101  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ANYCAST_DNS_SRP_SERVICE_ENTRIES
102  *
103  * Specifies the desired number of "DNS/SRP Service Anycast Address" entries in the Thread Network Data.
104  *
105  * Publisher attempts to limit the number of such entries to this value.
106  *
107  */
108 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ANYCAST_DNS_SRP_SERVICE_ENTRIES
109 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ANYCAST_DNS_SRP_SERVICE_ENTRIES 8
110 #endif
111 
112 /**
113  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_UNICAST_DNS_SRP_SERVICE_ENTRIES
114  *
115  * Specifies the desired number of "DNS/SRP Service Anycast Address" entries in the Thread Network Data.
116  *
117  * Publisher attempts to limit the number of such entries to this value.
118  *
119  */
120 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_UNICAST_DNS_SRP_SERVICE_ENTRIES
121 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_UNICAST_DNS_SRP_SERVICE_ENTRIES 2
122 #endif
123 
124 /**
125  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ON_MESH_PREFIX_ENTRIES
126  *
127  * Specifies the desired number of matching On-mesh Prefix entries in the Thread Network Data.
128  *
129  * Publisher attempts to limit the number of matching entries to this value.
130  *
131  */
132 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ON_MESH_PREFIX_ENTRIES
133 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ON_MESH_PREFIX_ENTRIES 3
134 #endif
135 
136 /**
137  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_EXTERNAL_ROUTE_ENTRIES
138  *
139  * Specifies the desired number of matching External Route entries in the Thread Network Data.
140  *
141  * Publisher attempts to limit the number of matching entries to this value.
142  *
143  */
144 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_EXTERNAL_ROUTE_ENTRIES
145 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_EXTERNAL_ROUTE_ENTRIES 10
146 #endif
147 
148 /**
149  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_PREFIX_ENTRIES
150  *
151  * Specifies maximum number of prefix (on-mesh prefix or external route) entries reserved by Publisher for use by
152  * user (through OT public APIs).
153  *
154  */
155 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_PREFIX_ENTRIES
156 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_PREFIX_ENTRIES 3
157 #endif
158 
159 #endif // CONFIG_NETDATA_PUBLISHER_H_
160