mirror of
https://github.com/oliverschmidt/contiki.git
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43b5425493
Fixed a wrapping problem in the ETX EWMA calculation. Corrected the multiplier of the link metric, and simplified the configuration so that the user does not need to specify the multiplier.
190 lines
5.9 KiB
C
190 lines
5.9 KiB
C
/*
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* Copyright (c) 2010, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* \file
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* Public configuration and API declarations for ContikiRPL.
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* \author
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* Joakim Eriksson <joakime@sics.se> & Nicolas Tsiftes <nvt@sics.se>
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*
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*/
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#ifndef RPL_CONF_H
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#define RPL_CONF_H
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#include "contiki-conf.h"
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/* Set to 1 to enable RPL statistics */
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#ifndef RPL_CONF_STATS
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#define RPL_CONF_STATS 0
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#endif /* RPL_CONF_STATS */
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/*
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* Select routing metric supported at runtime. This must be a valid
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* DAG Metric Container Object Type (see below). Currently, we only
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* support RPL_DAG_MC_ETX and RPL_DAG_MC_ENERGY.
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* When MRHOF (RFC6719) is used with ETX, no metric container must
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* be used; instead the rank carries ETX directly.
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*/
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#ifdef RPL_CONF_DAG_MC
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#define RPL_DAG_MC RPL_CONF_DAG_MC
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#else
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#define RPL_DAG_MC RPL_DAG_MC_NONE
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#endif /* RPL_CONF_DAG_MC */
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/*
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* The objective function used by RPL is configurable through the
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* RPL_CONF_OF parameter. This should be defined to be the name of an
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* rpl_of object linked into the system image, e.g., rpl_of0.
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*/
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#ifdef RPL_CONF_OF
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#define RPL_OF RPL_CONF_OF
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#else
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/* ETX is the default objective function. */
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#define RPL_OF rpl_mrhof
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#endif /* RPL_CONF_OF */
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/* This value decides which DAG instance we should participate in by default. */
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#ifdef RPL_CONF_DEFAULT_INSTANCE
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#define RPL_DEFAULT_INSTANCE RPL_CONF_DEFAULT_INSTANCE
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#else
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#define RPL_DEFAULT_INSTANCE 0x1e
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#endif /* RPL_CONF_DEFAULT_INSTANCE */
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/*
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* This value decides if this node must stay as a leaf or not
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* as allowed by draft-ietf-roll-rpl-19#section-8.5
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*/
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#ifdef RPL_CONF_LEAF_ONLY
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#define RPL_LEAF_ONLY RPL_CONF_LEAF_ONLY
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#else
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#define RPL_LEAF_ONLY 0
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#endif
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/*
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* Maximum of concurent RPL instances.
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*/
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#ifdef RPL_CONF_MAX_INSTANCES
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#define RPL_MAX_INSTANCES RPL_CONF_MAX_INSTANCES
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#else
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#define RPL_MAX_INSTANCES 1
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#endif /* RPL_CONF_MAX_INSTANCES */
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/*
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* Maximum number of DAGs within an instance.
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*/
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#ifdef RPL_CONF_MAX_DAG_PER_INSTANCE
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#define RPL_MAX_DAG_PER_INSTANCE RPL_CONF_MAX_DAG_PER_INSTANCE
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#else
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#define RPL_MAX_DAG_PER_INSTANCE 2
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#endif /* RPL_CONF_MAX_DAG_PER_INSTANCE */
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/*
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*
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*/
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#ifndef RPL_CONF_DAO_SPECIFY_DAG
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#if RPL_MAX_DAG_PER_INSTANCE > 1
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#define RPL_DAO_SPECIFY_DAG 1
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#else
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#define RPL_DAO_SPECIFY_DAG 0
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#endif /* RPL_MAX_DAG_PER_INSTANCE > 1 */
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#else
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#define RPL_DAO_SPECIFY_DAG RPL_CONF_DAO_SPECIFY_DAG
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#endif /* RPL_CONF_DAO_SPECIFY_DAG */
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/*
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* The DIO interval (n) represents 2^n ms.
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*
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* According to the specification, the default value is 3 which
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* means 8 milliseconds. That is far too low when using duty cycling
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* with wake-up intervals that are typically hundreds of milliseconds.
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* ContikiRPL thus sets the default to 2^12 ms = 4.096 s.
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*/
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#ifdef RPL_CONF_DIO_INTERVAL_MIN
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#define RPL_DIO_INTERVAL_MIN RPL_CONF_DIO_INTERVAL_MIN
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#else
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#define RPL_DIO_INTERVAL_MIN 12
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#endif
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/*
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* Maximum amount of timer doublings.
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*
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* The maximum interval will by default be 2^(12+8) ms = 1048.576 s.
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* RFC 6550 suggests a default value of 20, which of course would be
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* unsuitable when we start with a minimum interval of 2^12.
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*/
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#ifdef RPL_CONF_DIO_INTERVAL_DOUBLINGS
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#define RPL_DIO_INTERVAL_DOUBLINGS RPL_CONF_DIO_INTERVAL_DOUBLINGS
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#else
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#define RPL_DIO_INTERVAL_DOUBLINGS 8
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#endif
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/*
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* DIO redundancy. To learn more about this, see RFC 6206.
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*
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* RFC 6550 suggests a default value of 10. It is unclear what the basis
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* of this suggestion is. Network operators might attain more efficient
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* operation by tuning this parameter for specific deployments.
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*/
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#ifdef RPL_CONF_DIO_REDUNDANCY
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#define RPL_DIO_REDUNDANCY RPL_CONF_DIO_REDUNDANCY
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#else
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#define RPL_DIO_REDUNDANCY 10
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#endif
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/*
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* Initial metric attributed to a link when the ETX is unknown
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*/
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#ifndef RPL_CONF_INIT_LINK_METRIC
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#define RPL_INIT_LINK_METRIC 5
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#else
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#define RPL_INIT_LINK_METRIC RPL_CONF_INIT_LINK_METRIC
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#endif
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/*
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* Default route lifetime unit. This is the granularity of time
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* used in RPL lifetime values, in seconds.
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*/
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#ifndef RPL_CONF_DEFAULT_LIFETIME_UNIT
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#define RPL_DEFAULT_LIFETIME_UNIT 0xffff
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#else
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#define RPL_DEFAULT_LIFETIME_UNIT RPL_CONF_DEFAULT_LIFETIME_UNIT
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#endif
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/*
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* Default route lifetime as a multiple of the lifetime unit.
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*/
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#ifndef RPL_CONF_DEFAULT_LIFETIME
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#define RPL_DEFAULT_LIFETIME 0xff
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#else
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#define RPL_DEFAULT_LIFETIME RPL_CONF_DEFAULT_LIFETIME
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#endif
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#endif /* RPL_CONF_H */
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