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 #ifndef CONFIG_NETDATA_PUBLISHER_H_
35 #define CONFIG_NETDATA_PUBLISHER_H_
36 
37 /**
38  * @addtogroup config-netdata-publisher
39  *
40  * @brief
41  *   This module includes configuration variables for Network Data Publisher.
42  *
43  * @{
44  */
45 
46 #include "config/border_router.h"
47 #include "config/border_routing.h"
48 #include "config/srp_server.h"
49 
50 /**
51  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_ENABLE
52  *
53  * Define to 1 to enable Network Data Publisher.
54  *
55  * Network Data Publisher provides mechanisms to limit the number of similar Service and/or Prefix (on-mesh prefix
56  * or external route) entries in the Thread Network Data by monitoring the Network Data and managing if or when to add
57  * or remove entries.
58  */
59 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_ENABLE
60 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_ENABLE \
61     (OPENTHREAD_CONFIG_SRP_SERVER_ENABLE || OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE)
62 #endif
63 
64 /**
65  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_ADD
66  *
67  * Specifies the maximum value (in milliseconds) of the random delay used before adding an entry in the Thread Network
68  * Data.
69  */
70 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_ADD
71 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_ADD 3500
72 #endif
73 
74 /**
75  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE
76  *
77  * Specifies the maximum value (in milliseconds) of the random wait time used before removing an entry from the Thread
78  * Network Data.
79  */
80 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE
81 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE 15000
82 #endif
83 
84 /**
85  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED
86  *
87  * Specifies the extra wait time (in milliseconds) used when removing a preferred entry.
88  *
89  * When removing entries, certain entries are preferred over others. How the preference is determined depends on the
90  * entry type (e.g., (for DNS/SRP service entries associated with smaller RLOC16 or smaller IPv6 address are preferred).
91  * If the `Publisher` determines that its own entry is a preferred one, it adds the above extra wait time in addition
92  * to the random wait selected based on `OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE` before removing
93  * its entry. This gives higher chance for a non-preferred entry from another device to be removed before removing a
94  * preferred entry which helps towards quicker convergence of the process to the desired number of entries.
95  *
96  * It is recommended that `OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED` to be set to a
97  * value larger than `OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_DELAY_TO_REMOVE` to ensure that non-preferred entries
98  * are removed first.
99  */
100 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED
101 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_EXTRA_DELAY_TIME_TO_REMOVE_PREFERRED 16000
102 #endif
103 
104 /**
105  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ANYCAST_DNS_SRP_SERVICE_ENTRIES
106  *
107  * Specifies the desired number of "DNS/SRP Service Anycast Address" entries in the Thread Network Data.
108  *
109  * Publisher attempts to limit the number of such entries to this value.
110  */
111 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ANYCAST_DNS_SRP_SERVICE_ENTRIES
112 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ANYCAST_DNS_SRP_SERVICE_ENTRIES 8
113 #endif
114 
115 /**
116  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_UNICAST_DNS_SRP_SERVICE_ENTRIES
117  *
118  * Specifies the desired number of "DNS/SRP Service Anycast Address" entries in the Thread Network Data.
119  *
120  * Publisher attempts to limit the number of such entries to this value.
121  */
122 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_UNICAST_DNS_SRP_SERVICE_ENTRIES
123 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_UNICAST_DNS_SRP_SERVICE_ENTRIES 2
124 #endif
125 
126 /**
127  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ON_MESH_PREFIX_ENTRIES
128  *
129  * Specifies the desired number of matching On-mesh Prefix entries in the Thread Network Data.
130  *
131  * Publisher attempts to limit the number of matching entries to this value.
132  */
133 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ON_MESH_PREFIX_ENTRIES
134 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_ON_MESH_PREFIX_ENTRIES 3
135 #endif
136 
137 /**
138  * @def OPENTHREAD_CONFIG_NETDATA_PUBLISHER_DESIRED_NUM_EXTERNAL_ROUTE_ENTRIES
139  *
140  * Specifies the desired number of matching External Route entries in the Thread Network Data.
141  *
142  * Publisher attempts to limit the number of matching entries to this value.
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 #ifndef OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_PREFIX_ENTRIES
155 #define OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_PREFIX_ENTRIES 3
156 #endif
157 
158 /**
159  * @}
160  */
161 
162 #endif // CONFIG_NETDATA_PUBLISHER_H_
163