1 /* 2 * Copyright (c) 2019, 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 Child Supervision. 32 * 33 */ 34 35 #ifndef CONFIG_CHILD_SUPERVISION_H_ 36 #define CONFIG_CHILD_SUPERVISION_H_ 37 38 /** 39 * @def OPENTHREAD_CONFIG_CHILD_SUPERVISION_INTERVAL 40 * 41 * The default supervision interval in seconds to use when in child state. Zero indicates no supervision needed. 42 * 43 * The current supervision interval can be changed using `otChildSupervisionSetInterval()`. 44 * 45 * Child supervision feature provides a mechanism for parent to ensure that a message is sent to each sleepy child 46 * within the supervision interval. If there is no transmission to the child within the supervision interval, child 47 * supervisor will enqueue and send a supervision message (a data message with empty payload) to the child. 48 * 49 */ 50 #ifndef OPENTHREAD_CONFIG_CHILD_SUPERVISION_INTERVAL 51 #define OPENTHREAD_CONFIG_CHILD_SUPERVISION_INTERVAL 129 52 #endif 53 54 /** 55 * @def OPENTHREAD_CONFIG_CHILD_SUPERVISION_CHECK_TIMEOUT 56 * 57 * The default supervision check timeout interval (in seconds) used by a device in child state. Set to zero to disable 58 * the supervision check process on the child. 59 * 60 * The check timeout interval can be changed using `otChildSupervisionSetCheckTimeout()`. 61 * 62 * If the sleepy child does not hear from its parent within the specified timeout interval, it initiates the re-attach 63 * process (MLE Child Update Request/Response exchange with its parent). 64 * 65 */ 66 #ifndef OPENTHREAD_CONFIG_CHILD_SUPERVISION_CHECK_TIMEOUT 67 #define OPENTHREAD_CONFIG_CHILD_SUPERVISION_CHECK_TIMEOUT 190 68 #endif 69 70 /** 71 * @def OPENTHREAD_CONFIG_CHILD_SUPERVISION_OLDER_VERSION_CHILD_DEFAULT_INTERVAL 72 * 73 * Specifies the default supervision interval to use on parent for children that do not explicitly indicate their 74 * desired supervision internal (do not include a "Supervision Interval TLV") and are running older Thread versions 75 * (version <= 1.3.0). 76 * 77 * This config is added to allow backward compatibility on parent with SED children that used Child Supervision 78 * feature in OT stack before adoption of it by Thread specification and addition of the "Supervision Interval TLV" as 79 * the mechanism for child to inform the parent of its desired supervision interval. 80 * 81 * The config can be set to zero to effectively disable it, i.e., if a child does not provide "Supervision Interval TLV" 82 * it indicates that it does not want to be supervised and then parent will use zero interval for the child. 83 * 84 */ 85 #ifndef OPENTHREAD_CONFIG_CHILD_SUPERVISION_OLDER_VERSION_CHILD_DEFAULT_INTERVAL 86 #define OPENTHREAD_CONFIG_CHILD_SUPERVISION_OLDER_VERSION_CHILD_DEFAULT_INTERVAL 129 87 #endif 88 89 #endif // CONFIG_CHILD_SUPERVISION_H_ 90
