contiki/core/net/rpl/rpl-conf.h

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/*
* 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.
*
* \file
* Public configuration and API declarations for ContikiRPL.
* \author
* Joakim Eriksson <joakime@sics.se> & Nicolas Tsiftes <nvt@sics.se>
*
*/
#ifndef RPL_CONF_H
#define RPL_CONF_H
#include "contiki-conf.h"
/* Set to 1 to enable RPL statistics */
#ifndef RPL_CONF_STATS
#define RPL_CONF_STATS 0
#endif /* RPL_CONF_STATS */
/*
* Select routing metric supported at runtime. This must be a valid
* DAG Metric Container Object Type (see below). Currently, we only
* support RPL_DAG_MC_ETX and RPL_DAG_MC_ENERGY.
* When MRHOF (RFC6719) is used with ETX, no metric container must
* be used; instead the rank carries ETX directly.
*/
#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 */
/*
* The objective function used by RPL is configurable through the
* RPL_CONF_OF parameter. This should be defined to be the name of an
* rpl_of object linked into the system image, e.g., rpl_of0.
*/
#ifdef RPL_CONF_OF
#define RPL_OF RPL_CONF_OF
#else
/* ETX is the default objective function. */
#define RPL_OF rpl_mrhof
#endif /* RPL_CONF_OF */
/* 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 0x1e
#endif /* RPL_CONF_DEFAULT_INSTANCE */
/*
* 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_LEAF_ONLY
#define RPL_LEAF_ONLY RPL_CONF_LEAF_ONLY
#else
#define RPL_LEAF_ONLY 0
#endif
/*
* Maximum of concurent RPL instances.
*/
#ifdef RPL_CONF_MAX_INSTANCES
#define RPL_MAX_INSTANCES RPL_CONF_MAX_INSTANCES
#else
#define RPL_MAX_INSTANCES 1
#endif /* RPL_CONF_MAX_INSTANCES */
/*
* Maximum number of DAGs within an instance.
*/
#ifdef RPL_CONF_MAX_DAG_PER_INSTANCE
#define RPL_MAX_DAG_PER_INSTANCE RPL_CONF_MAX_DAG_PER_INSTANCE
#else
#define RPL_MAX_DAG_PER_INSTANCE 2
#endif /* RPL_CONF_MAX_DAG_PER_INSTANCE */
/*
* RPL Default route lifetime
* The RPL route lifetime is used for the downward routes and for the default
* route. In a high density network with DIO suppression activated it may happen
* that a node will never send a DIO once the DIO interval becomes high as it
* has heard DIO from many neighbors already. As the default route to the
* preferred parent has a lifetime reset by receiving DIO from the parent, it
* means that the default route can be destroyed after a while. Setting the
* default route with infinite lifetime secures the upstream route.
*/
#ifdef RPL_CONF_DEFAULT_ROUTE_INFINITE_LIFETIME
#define RPL_DEFAULT_ROUTE_INFINITE_LIFETIME RPL_CONF_DEFAULT_ROUTE_INFINITE_LIFETIME
#else
#define RPL_DEFAULT_ROUTE_INFINITE_LIFETIME 0
#endif /* RPL_CONF_DEFAULT_ROUTE_INFINITE_LIFETIME */
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/*
* Maximum lifetime of a DAG
* When a DODAG is not updated since RPL_CONF_DAG_LIFETIME times the DODAG
* maximum DIO interval the DODAG is removed from the list of DODAGS of the
* related instance, except if it is the currently joined DODAG.
*/
#ifdef RPL_CONF_DAG_LIFETIME
#define RPL_DAG_LIFETIME RPL_CONF_DAG_LIFETIME
#else
#define RPL_DAG_LIFETIME 3
#endif /* RPL_CONF_DAG_LIFETIME */
/*
*
*/
#ifndef RPL_CONF_DAO_SPECIFY_DAG
#if RPL_MAX_DAG_PER_INSTANCE > 1
#define RPL_DAO_SPECIFY_DAG 1
#else
#define RPL_DAO_SPECIFY_DAG 0
#endif /* RPL_MAX_DAG_PER_INSTANCE > 1 */
#else
#define RPL_DAO_SPECIFY_DAG RPL_CONF_DAO_SPECIFY_DAG
#endif /* RPL_CONF_DAO_SPECIFY_DAG */
/*
* 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. It is unclear what the basis
* of this suggestion is. Network operators might attain more efficient
* operation by tuning this parameter for specific deployments.
*/
#ifdef RPL_CONF_DIO_REDUNDANCY
#define RPL_DIO_REDUNDANCY RPL_CONF_DIO_REDUNDANCY
#else
#define RPL_DIO_REDUNDANCY 10
#endif
/*
* Initial metric attributed to a link when the ETX is unknown
*/
#ifndef RPL_CONF_INIT_LINK_METRIC
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#define RPL_INIT_LINK_METRIC 2
#else
#define RPL_INIT_LINK_METRIC RPL_CONF_INIT_LINK_METRIC
#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 0xffff
#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 0xff
#else
#define RPL_DEFAULT_LIFETIME RPL_CONF_DEFAULT_LIFETIME
#endif
/*
* DAG preference field
*/
#ifdef RPL_CONF_PREFERENCE
#define RPL_PREFERENCE RPL_CONF_PREFERENCE
#else
#define RPL_PREFERENCE 0
#endif
/*
* Hop-by-hop option
* This option control the insertion of the RPL Hop-by-Hop extension header
* into packets originating from this node. Incoming Hop-by-hop extension
* header are still processed and forwarded.
*/
#ifdef RPL_CONF_INSERT_HBH_OPTION
#define RPL_INSERT_HBH_OPTION RPL_CONF_INSERT_HBH_OPTION
#else
#define RPL_INSERT_HBH_OPTION 1
#endif
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/*
* RPL probing. When enabled, probes will be sent periodically to keep
* parent link estimates up to date.
* */
#ifdef RPL_CONF_WITH_PROBING
#define RPL_WITH_PROBING RPL_CONF_WITH_PROBING
#else
#define RPL_WITH_PROBING 1
#endif
/*
* RPL probing interval.
* */
#ifdef RPL_CONF_PROBING_INTERVAL
#define RPL_PROBING_INTERVAL RPL_CONF_PROBING_INTERVAL
#else
#define RPL_PROBING_INTERVAL (120 * CLOCK_SECOND)
#endif
/*
* RPL probing expiration time.
* */
#ifdef RPL_CONF_PROBING_EXPIRATION_TIME
#define RPL_PROBING_EXPIRATION_TIME RPL_CONF_PROBING_EXPIRATION_TIME
#else
#define RPL_PROBING_EXPIRATION_TIME (10 * 60 * CLOCK_SECOND)
#endif
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/*
* Function used to select the next parent 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(dag) get_probing_target((dag))
#endif
/*
* Function used to send RPL probes.
* To probe with DIO, use:
* #define RPL_CONF_PROBING_SEND_FUNC(instance, addr) dio_output((instance), (addr))
* To probe with DIS, use:
* #define RPL_CONF_PROBING_SEND_FUNC(instance, addr) 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(instance, addr) dio_output((instance), (addr))
#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() ((RPL_PROBING_INTERVAL / 2) \
+ random_rand() % (RPL_PROBING_INTERVAL))
#endif
#endif /* RPL_CONF_H */