nes-proj/os/net/routing/rpl-lite/rpl-conf.h
2018-09-29 09:26:29 +02:00

402 lines
14 KiB
C

/*
* Copyright (c) 2010, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \addtogroup rpl-lite
* @{
*
* \file
* Public configuration and API declarations for ContikiRPL.
* \author
* Joakim Eriksson <joakime@sics.se>, Nicolas Tsiftes <nvt@sics.se>,
* Simon DUquennoy <simon.duquennoy@inria.fr>
*
*/
#ifndef RPL_CONF_H
#define RPL_CONF_H
#include "contiki.h"
/******************************************************************************/
/*********************** Enabling/disabling features **************************/
/******************************************************************************/
/* RPL Mode of operation */
#ifdef RPL_CONF_MOP
#define RPL_MOP_DEFAULT RPL_CONF_MOP
#else /* RPL_CONF_MOP */
#define RPL_MOP_DEFAULT RPL_MOP_NON_STORING
#endif /* RPL_CONF_MOP */
/*
* We only support non-storing mode
*/
#define RPL_WITH_STORING 0
/*
* Embed support for non-storing mode
*/
#ifdef RPL_CONF_WITH_NON_STORING
#define RPL_WITH_NON_STORING RPL_CONF_WITH_NON_STORING
#else /* RPL_CONF_WITH_NON_STORING */
/* By default: embed support for non-storing if and only if the configured MOP is non-storing */
#define RPL_WITH_NON_STORING (RPL_MOP_DEFAULT == RPL_MOP_NON_STORING)
#endif /* RPL_CONF_WITH_NON_STORING */
/*
* The objective function (OF) used by a RPL root is configurable through
* the RPL_CONF_OF_OCP parameter. This is defined as the objective code
* point (OCP) of the OF, RPL_OCP_OF0 or RPL_OCP_MRHOF. This flag is of
* no relevance to non-root nodes, which run the OF advertised in the
* instance they join.
* Make sure the selected of is inRPL_SUPPORTED_OFS.
*/
#ifdef RPL_CONF_OF_OCP
#define RPL_OF_OCP RPL_CONF_OF_OCP
#else /* RPL_CONF_OF_OCP */
#define RPL_OF_OCP RPL_OCP_MRHOF
#endif /* RPL_CONF_OF_OCP */
/*
* The set of objective functions supported at runtime. Nodes are only
* able to join instances that advertise an OF in this set. To include
* both OF0 and MRHOF, use {&rpl_of0, &rpl_mrhof}.
*/
#ifdef RPL_CONF_SUPPORTED_OFS
#define RPL_SUPPORTED_OFS RPL_CONF_SUPPORTED_OFS
#else /* RPL_CONF_SUPPORTED_OFS */
#define RPL_SUPPORTED_OFS {&rpl_mrhof}
#endif /* RPL_CONF_SUPPORTED_OFS */
/*
* Enable/disable RPL Metric Containers (MC). The actual MC in use
* for a given DODAG is decided at runtime, when joining. Note that
* OF0 (RFC6552) operates without MC, and so does MRHOF (RFC6719) when
* used with ETX as a metric (the rank is the metric). We disable MC
* by default, but note it must be enabled to support joining a DODAG
* that requires MC (e.g., MRHOF with a metric other than ETX).
*/
#ifdef RPL_CONF_WITH_MC
#define RPL_WITH_MC RPL_CONF_WITH_MC
#else /* RPL_CONF_WITH_MC */
#define RPL_WITH_MC 0
#endif /* RPL_CONF_WITH_MC */
/* The MC advertised in DIOs and propagating from the root */
#ifdef RPL_CONF_DAG_MC
#define RPL_DAG_MC RPL_CONF_DAG_MC
#else
#define RPL_DAG_MC RPL_DAG_MC_NONE
#endif /* RPL_CONF_DAG_MC */
/*
* RPL DAO-ACK support. When enabled, DAO-ACK will be sent and requested.
* This will also enable retransmission of DAO when no ack is received.
* */
#ifdef RPL_CONF_WITH_DAO_ACK
#define RPL_WITH_DAO_ACK RPL_CONF_WITH_DAO_ACK
#else
#define RPL_WITH_DAO_ACK 1
#endif /* RPL_CONF_WITH_DAO_ACK */
/*
* Setting the RPL_TRICKLE_REFRESH_DAO_ROUTES will make the RPL root
* increase the DTSN (Destination Advertisement Trigger Sequence Number)
* from the DIO trickle timer. If set to 4, DTSN will be increased every 4th
* iteration. This is to get all children to re-register their DAO route.
* This is needed when DAO-ACK is not enabled to
* add reliability to route maintenance.
* */
#ifdef RPL_CONF_TRICKLE_REFRESH_DAO_ROUTES
#define RPL_TRICKLE_REFRESH_DAO_ROUTES RPL_CONF_TRICKLE_REFRESH_DAO_ROUTES
#else
#if RPL_WITH_DAO_ACK
#define RPL_TRICKLE_REFRESH_DAO_ROUTES 0
#else
#define RPL_TRICKLE_REFRESH_DAO_ROUTES 4
#endif
#endif /* RPL_CONF_TRICKLE_REFRESH_DAO_ROUTES */
/*
* RPL probing. When enabled, probes will be sent periodically to keep
* neighbor link estimates up to date. Further configurable
* via RPL_CONF_PROBING_* flags
*/
#ifdef RPL_CONF_WITH_PROBING
#define RPL_WITH_PROBING RPL_CONF_WITH_PROBING
#else
#define RPL_WITH_PROBING 1
#endif
/*
* Function used to select the next neighbor to be probed.
*/
#ifdef RPL_CONF_PROBING_SELECT_FUNC
#define RPL_PROBING_SELECT_FUNC RPL_CONF_PROBING_SELECT_FUNC
#else
#define RPL_PROBING_SELECT_FUNC get_probing_target
#endif
/*
* Function used to send RPL probes.
* To probe with DIO, use:
* #define RPL_CONF_PROBING_SEND_FUNC(addr) rpl_icmp6_dio_output((addr))
* To probe with DIS, use:
* #define RPL_CONF_PROBING_SEND_FUNC(addr) rpl_icmp6_dis_output((addr))
* Any other custom probing function is also acceptable.
*/
#ifdef RPL_CONF_PROBING_SEND_FUNC
#define RPL_PROBING_SEND_FUNC RPL_CONF_PROBING_SEND_FUNC
#else
#define RPL_PROBING_SEND_FUNC(addr) rpl_icmp6_dio_output((addr))
#endif
/*
* This value decides if this node must stay as a leaf or not
* as allowed by draft-ietf-roll-rpl-19#section-8.5
*/
#ifdef RPL_CONF_DEFAULT_LEAF_ONLY
#define RPL_DEFAULT_LEAF_ONLY RPL_CONF_DEFAULT_LEAF_ONLY
#else
#define RPL_DEFAULT_LEAF_ONLY 0
#endif
/*
* Function used to validate dio before using it to init dag
*/
#ifdef RPL_CONF_VALIDATE_DIO_FUNC
#define RPL_VALIDATE_DIO_FUNC RPL_CONF_VALIDATE_DIO_FUNC
#endif
/******************************************************************************/
/********************************** Timing ************************************/
/******************************************************************************/
/*
* The DIO interval (n) represents 2^n ms.
*
* According to the specification, the default value is 3 which
* means 8 milliseconds. That is far too low when using duty cycling
* with wake-up intervals that are typically hundreds of milliseconds.
* ContikiRPL thus sets the default to 2^12 ms = 4.096 s.
*/
#ifdef RPL_CONF_DIO_INTERVAL_MIN
#define RPL_DIO_INTERVAL_MIN RPL_CONF_DIO_INTERVAL_MIN
#else
#define RPL_DIO_INTERVAL_MIN 12
#endif
/*
* Maximum amount of timer doublings.
*
* The maximum interval will by default be 2^(12+8) ms = 1048.576 s.
* RFC 6550 suggests a default value of 20, which of course would be
* unsuitable when we start with a minimum interval of 2^12.
*/
#ifdef RPL_CONF_DIO_INTERVAL_DOUBLINGS
#define RPL_DIO_INTERVAL_DOUBLINGS RPL_CONF_DIO_INTERVAL_DOUBLINGS
#else
#define RPL_DIO_INTERVAL_DOUBLINGS 8
#endif
/*
* DIO redundancy. To learn more about this, see RFC 6206.
*
* RFC 6550 suggests a default value of 10. We disable this mechanism by
* default, using a value of 0. This is to enable reliable DTSN increment
* propagation, and periodic rank dissemination without the need to increment
* version. Note that Trickle was originally designed for CTP, aiming to
* reduce broadcast traffic, which was particularly expensive done over an
* LPL MAC. In MAC layers such as non-beacon enabled or TSCH, broadcast is no
* more costly than unicast. Further, in this RPL implementation, DIOs are
* responsible for only a portion of the control traffic, compared to Link
* probing which is done at a period of minutes (RPL_PROBING_INTERVAL)
* for reliable parent selection.
*/
#ifdef RPL_CONF_DIO_REDUNDANCY
#define RPL_DIO_REDUNDANCY RPL_CONF_DIO_REDUNDANCY
#else
#define RPL_DIO_REDUNDANCY 0
#endif
/*
* Default route lifetime unit. This is the granularity of time
* used in RPL lifetime values, in seconds.
*/
#ifndef RPL_CONF_DEFAULT_LIFETIME_UNIT
#define RPL_DEFAULT_LIFETIME_UNIT 60
#else
#define RPL_DEFAULT_LIFETIME_UNIT RPL_CONF_DEFAULT_LIFETIME_UNIT
#endif
/*
* Default route lifetime as a multiple of the lifetime unit.
*/
#ifndef RPL_CONF_DEFAULT_LIFETIME
#define RPL_DEFAULT_LIFETIME 30
#else
#define RPL_DEFAULT_LIFETIME RPL_CONF_DEFAULT_LIFETIME
#endif
/* Maximum lifetime of a DAG as a multiple of the lifetime unit. */
#ifdef RPL_CONF_DAG_LIFETIME
#define RPL_DAG_LIFETIME RPL_CONF_DAG_LIFETIME
#else
#define RPL_DAG_LIFETIME (8 * 60) /* 8 hours */
#endif /* RPL_CONF_DAG_LIFETIME */
/*
* RPL probing interval.
*/
#ifdef RPL_CONF_PROBING_INTERVAL
#define RPL_PROBING_INTERVAL RPL_CONF_PROBING_INTERVAL
#else
#define RPL_PROBING_INTERVAL (90 * CLOCK_SECOND)
#endif
/*
* Function used to calculate next RPL probing interval
*/
#ifdef RPL_CONF_PROBING_DELAY_FUNC
#define RPL_PROBING_DELAY_FUNC RPL_CONF_PROBING_DELAY_FUNC
#else
#define RPL_PROBING_DELAY_FUNC get_probing_delay
#endif
/* Poisoining duration, before leaving the DAG */
#ifdef RPL_CONF_DELAY_BEFORE_LEAVING
#define RPL_DELAY_BEFORE_LEAVING RPL_CONF_DELAY_BEFORE_LEAVING
#else
#define RPL_DELAY_BEFORE_LEAVING (5 * 60 * CLOCK_SECOND)
#endif
/* Interval of DIS transmission */
#ifdef RPL_CONF_DIS_INTERVAL
#define RPL_DIS_INTERVAL RPL_CONF_DIS_INTERVAL
#else
#define RPL_DIS_INTERVAL (30 * CLOCK_SECOND)
#endif
/* DAO transmissions are always delayed by RPL_DAO_DELAY +/- RPL_DAO_DELAY/2 */
#ifdef RPL_CONF_DAO_DELAY
#define RPL_DAO_DELAY RPL_CONF_DAO_DELAY
#else /* RPL_CONF_DAO_DELAY */
#define RPL_DAO_DELAY (CLOCK_SECOND * 4)
#endif /* RPL_CONF_DAO_DELAY */
#ifdef RPL_CONF_DAO_MAX_RETRANSMISSIONS
#define RPL_DAO_MAX_RETRANSMISSIONS RPL_CONF_DAO_MAX_RETRANSMISSIONS
#else
#define RPL_DAO_MAX_RETRANSMISSIONS 5
#endif /* RPL_CONF_DAO_MAX_RETRANSMISSIONS */
#ifdef RPL_CONF_DAO_RETRANSMISSION_TIMEOUT
#define RPL_DAO_RETRANSMISSION_TIMEOUT RPL_CONF_DAO_RETRANSMISSION_TIMEOUT
#else
#define RPL_DAO_RETRANSMISSION_TIMEOUT (5 * CLOCK_SECOND)
#endif /* RPL_CONF_DAO_RETRANSMISSION_TIMEOUT */
/******************************************************************************/
/************************** More parameterization *****************************/
/******************************************************************************/
#ifndef RPL_CONF_MIN_HOPRANKINC
/* RFC6550 defines the default MIN_HOPRANKINC as 256.
* However, we use MRHOF as a default Objective Function (RFC6719),
* which recommends setting MIN_HOPRANKINC with care, in particular
* when used with ETX as a metric. ETX is computed as a fixed point
* real with a divisor of 128 (RFC6719, RFC6551). We choose to also
* use 128 for RPL_MIN_HOPRANKINC, resulting in a rank equal to the
* ETX path cost. Larger values may also be desirable, as discussed
* in section 6.1 of RFC6719. */
#if RPL_OF_OCP == RPL_OCP_MRHOF
#define RPL_MIN_HOPRANKINC 128
#else /* RPL_OF_OCP == RPL_OCP_MRHOF */
#define RPL_MIN_HOPRANKINC 256
#endif /* RPL_OF_OCP == RPL_OCP_MRHOF */
#else /* RPL_CONF_MIN_HOPRANKINC */
#define RPL_MIN_HOPRANKINC RPL_CONF_MIN_HOPRANKINC
#endif /* RPL_CONF_MIN_HOPRANKINC */
#ifndef RPL_CONF_MAX_RANKINC
#define RPL_MAX_RANKINC (8 * RPL_MIN_HOPRANKINC)
#else /* RPL_CONF_MAX_RANKINC */
#define RPL_MAX_RANKINC RPL_CONF_MAX_RANKINC
#endif /* RPL_CONF_MAX_RANKINC */
#ifndef RPL_CONF_SIGNIFICANT_CHANGE_THRESHOLD
#define RPL_SIGNIFICANT_CHANGE_THRESHOLD (4 * RPL_MIN_HOPRANKINC)
#else /* RPL_CONF_SIGNIFICANT_CHANGE_THRESHOLD */
#define RPL_SIGNIFICANT_CHANGE_THRESHOLD RPL_CONF_SIGNIFICANT_CHANGE_THRESHOLD
#endif /* RPL_CONF_SIGNIFICANT_CHANGE_THRESHOLD */
/* This value decides which DAG instance we should participate in by default. */
#ifdef RPL_CONF_DEFAULT_INSTANCE
#define RPL_DEFAULT_INSTANCE RPL_CONF_DEFAULT_INSTANCE
#else
#define RPL_DEFAULT_INSTANCE 0 /* Default of 0 for compression */
#endif /* RPL_CONF_DEFAULT_INSTANCE */
/* Set to have the root advertise a grounded DAG */
#ifndef RPL_CONF_GROUNDED
#define RPL_GROUNDED 0
#else
#define RPL_GROUNDED RPL_CONF_GROUNDED
#endif /* !RPL_CONF_GROUNDED */
/*
* DAG preference field
*/
#ifdef RPL_CONF_PREFERENCE
#define RPL_PREFERENCE RPL_CONF_PREFERENCE
#else
#define RPL_PREFERENCE 0
#endif
/* RPL callbacks when TSCH is enabled */
#if MAC_CONF_WITH_TSCH
#ifndef RPL_CALLBACK_PARENT_SWITCH
#define RPL_CALLBACK_PARENT_SWITCH tsch_rpl_callback_parent_switch
#endif /* RPL_CALLBACK_PARENT_SWITCH */
#ifndef RPL_CALLBACK_NEW_DIO_INTERVAL
#define RPL_CALLBACK_NEW_DIO_INTERVAL tsch_rpl_callback_new_dio_interval
#endif /* RPL_CALLBACK_NEW_DIO_INTERVAL */
#endif /* MAC_CONF_WITH_TSCH */
/** @} */
#endif /* RPL_CONF_H */