383 lines
13 KiB
C
383 lines
13 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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* Simon DUquennoy <simon.duquennoy@inria.fr>
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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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/******************************************************************************/
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/*********************** Enabling/disabling features **************************/
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/******************************************************************************/
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/* RPL Mode of operation */
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#ifdef RPL_CONF_MOP
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#define RPL_MOP_DEFAULT RPL_CONF_MOP
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#else /* RPL_CONF_MOP */
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#define RPL_MOP_DEFAULT RPL_MOP_NON_STORING
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#endif /* RPL_CONF_MOP */
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/*
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* We only support non-storing mode
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*/
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#define RPL_WITH_STORING 0
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#define RPL_WITH_NON_STORING (RPL_MOP_DEFAULT == RPL_MOP_NON_STORING)
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/* The number of non-storing nodes, i.e. the maximum netwrok size at the root */
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#ifdef RPL_NS_CONF_LINK_NUM
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#define RPL_NS_LINK_NUM RPL_NS_CONF_LINK_NUM
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#else /* RPL_NS_CONF_LINK_NUM */
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#if RPL_WITH_NON_STORING
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#define RPL_NS_LINK_NUM NETSTACK_MAX_ROUTE_ENTRIES
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#else
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#define RPL_NS_LINK_NUM 0
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#endif
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#endif /* RPL_NS_CONF_LINK_NUM */
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/*
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* The objective function (OF) used by a RPL root is configurable through
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* the RPL_CONF_OF_OCP parameter. This is defined as the objective code
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* point (OCP) of the OF, RPL_OCP_OF0 or RPL_OCP_MRHOF. This flag is of
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* no relevance to non-root nodes, which run the OF advertised in the
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* instance they join.
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* Make sure the selected of is inRPL_SUPPORTED_OFS.
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*/
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#ifdef RPL_CONF_OF_OCP
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#define RPL_OF_OCP RPL_CONF_OF_OCP
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#else /* RPL_CONF_OF_OCP */
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#define RPL_OF_OCP RPL_OCP_MRHOF
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#endif /* RPL_CONF_OF_OCP */
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/*
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* The set of objective functions supported at runtime. Nodes are only
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* able to join instances that advertise an OF in this set. To include
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* both OF0 and MRHOF, use {&rpl_of0, &rpl_mrhof}.
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*/
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#ifdef RPL_CONF_SUPPORTED_OFS
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#define RPL_SUPPORTED_OFS RPL_CONF_SUPPORTED_OFS
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#else /* RPL_CONF_SUPPORTED_OFS */
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#define RPL_SUPPORTED_OFS {&rpl_mrhof}
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#endif /* RPL_CONF_SUPPORTED_OFS */
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/*
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* Enable/disable RPL Metric Containers (MC). The actual MC in use
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* for a given DODAG is decided at runtime, when joining. Note that
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* OF0 (RFC6552) operates without MC, and so does MRHOF (RFC6719) when
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* used with ETX as a metric (the rank is the metric). We disable MC
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* by default, but note it must be enabled to support joining a DODAG
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* that requires MC (e.g., MRHOF with a metric other than ETX).
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*/
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#ifdef RPL_CONF_WITH_MC
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#define RPL_WITH_MC RPL_CONF_WITH_MC
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#else /* RPL_CONF_WITH_MC */
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#define RPL_WITH_MC 0
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#endif /* RPL_CONF_WITH_MC */
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/* The MC advertised in DIOs and propagating from the root */
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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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* RPL DAO-ACK support. When enabled, DAO-ACK will be sent and requested.
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* This will also enable retransmission of DAO when no ack is received.
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* */
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#ifdef RPL_CONF_WITH_DAO_ACK
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#define RPL_WITH_DAO_ACK RPL_CONF_WITH_DAO_ACK
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#else
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#define RPL_WITH_DAO_ACK 1
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#endif /* RPL_CONF_WITH_DAO_ACK */
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/*
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* Setting the RPL_TRICKLE_REFRESH_DAO_ROUTES will make the RPL root
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* increase the DTSN (Destination Advertisement Trigger Sequence Number)
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* from the DIO trickle timer. If set to 4, DTSN will be increased every 4th
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* iteration. This is to get all children to re-register their DAO route.
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* This is needed when DAO-ACK is not enabled to
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* add reliability to route maintenance.
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* */
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#ifdef RPL_CONF_TRICKLE_REFRESH_DAO_ROUTES
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#define RPL_TRICKLE_REFRESH_DAO_ROUTES RPL_CONF_TRICKLE_REFRESH_DAO_ROUTES
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#else
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#if RPL_WITH_DAO_ACK
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#define RPL_TRICKLE_REFRESH_DAO_ROUTES 0
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#else
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#define RPL_TRICKLE_REFRESH_DAO_ROUTES 4
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#endif
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#endif /* RPL_CONF_TRICKLE_REFRESH_DAO_ROUTES */
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/*
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* RPL probing. When enabled, probes will be sent periodically to keep
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* neighbor link estimates up to date. Further configurable
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* via RPL_CONF_PROBING_* flags
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*/
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#ifdef RPL_CONF_WITH_PROBING
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#define RPL_WITH_PROBING RPL_CONF_WITH_PROBING
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#else
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#define RPL_WITH_PROBING 1
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#endif
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/*
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* Function used to select the next neighbor to be probed.
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*/
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#ifdef RPL_CONF_PROBING_SELECT_FUNC
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#define RPL_PROBING_SELECT_FUNC RPL_CONF_PROBING_SELECT_FUNC
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#else
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#define RPL_PROBING_SELECT_FUNC get_probing_target
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#endif
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/*
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* Function used to send RPL probes.
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* To probe with DIO, use:
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* #define RPL_CONF_PROBING_SEND_FUNC(addr) rpl_icmp6_dio_output((addr))
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* To probe with DIS, use:
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* #define RPL_CONF_PROBING_SEND_FUNC(addr) rpl_icmp6_dis_output((addr))
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* Any other custom probing function is also acceptable.
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*/
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#ifdef RPL_CONF_PROBING_SEND_FUNC
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#define RPL_PROBING_SEND_FUNC RPL_CONF_PROBING_SEND_FUNC
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#else
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#define RPL_PROBING_SEND_FUNC(addr) rpl_icmp6_dio_output((addr))
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#endif
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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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/********************************** Timing ************************************/
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/******************************************************************************/
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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. We disable this mechanism by
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* default, using a value of 0. This is to enable reliable DTSN increment
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* propagation, and periodic rank dissemination without the need to increment
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* version. Note that Trickle was originally designed for CTP, aiming to
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* reduce broadcast traffic, which was particularly expensive done over an
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* LPL MAC. In MAC layers such as non-beacon enabled or TSCH, broadcast is no
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* more costly than unicast. Further, in this RPL implementation, DIOs are
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* responsible for only a portion of the control traffic, compared to Link
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* probing which is done at a period of minutes (RPL_PROBING_INTERVAL)
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* for reliable parent selection.
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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 0
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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 60
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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 30
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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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/* Maximum lifetime of a DAG as a multiple of the lifetime unit. */
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#ifdef RPL_CONF_DAG_LIFETIME
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#define RPL_DAG_LIFETIME RPL_CONF_DAG_LIFETIME
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#else
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#define RPL_DAG_LIFETIME (60 * 60) /* one hour */
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#endif /* RPL_CONF_DAG_LIFETIME */
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/*
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* RPL probing interval.
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*/
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#ifdef RPL_CONF_PROBING_INTERVAL
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#define RPL_PROBING_INTERVAL RPL_CONF_PROBING_INTERVAL
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#else
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#define RPL_PROBING_INTERVAL (90 * CLOCK_SECOND)
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#endif
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/*
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* Function used to calculate next RPL probing interval
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*/
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#ifdef RPL_CONF_PROBING_DELAY_FUNC
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#define RPL_PROBING_DELAY_FUNC RPL_CONF_PROBING_DELAY_FUNC
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#else
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#define RPL_PROBING_DELAY_FUNC get_probing_delay
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#endif
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/* Poisoining duration, before leaving the DAG */
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#ifdef RPL_CONF_DELAY_BEFORE_LEAVING
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#define RPL_DELAY_BEFORE_LEAVING RPL_CONF_DELAY_BEFORE_LEAVING
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#else
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#define RPL_DELAY_BEFORE_LEAVING (5 * 60 * CLOCK_SECOND)
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#endif
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/* Interval of DIS transmission */
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#ifdef RPL_CONF_DIS_INTERVAL
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#define RPL_DIS_INTERVAL RPL_CONF_DIS_INTERVAL
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#else
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#define RPL_DIS_INTERVAL (30 * CLOCK_SECOND)
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#endif
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/* DAO transmissions are always delayed by RPL_DAO_DELAY +/- RPL_DAO_DELAY/2 */
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#ifdef RPL_CONF_DAO_DELAY
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#define RPL_DAO_DELAY RPL_CONF_DAO_DELAY
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#else /* RPL_CONF_DAO_DELAY */
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#define RPL_DAO_DELAY (CLOCK_SECOND * 4)
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#endif /* RPL_CONF_DAO_DELAY */
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/* Delay between reception of a no-path DAO and actual route removal */
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#ifdef RPL_CONF_NOPATH_REMOVAL_DELAY
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#define RPL_NOPATH_REMOVAL_DELAY RPL_CONF_NOPATH_REMOVAL_DELAY
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#else /* RPL_CONF_NOPATH_REMOVAL_DELAY */
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#define RPL_NOPATH_REMOVAL_DELAY 60
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#endif /* RPL_CONF_NOPATH_REMOVAL_DELAY */
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#ifdef RPL_CONF_DAO_MAX_RETRANSMISSIONS
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#define RPL_DAO_MAX_RETRANSMISSIONS RPL_CONF_DAO_MAX_RETRANSMISSIONS
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#else
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#define RPL_DAO_MAX_RETRANSMISSIONS 5
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#endif /* RPL_CONF_DAO_MAX_RETRANSMISSIONS */
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#ifdef RPL_CONF_DAO_RETRANSMISSION_TIMEOUT
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#define RPL_DAO_RETRANSMISSION_TIMEOUT RPL_CONF_DAO_RETRANSMISSION_TIMEOUT
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#else
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#define RPL_DAO_RETRANSMISSION_TIMEOUT (5 * CLOCK_SECOND)
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#endif /* RPL_CONF_DAO_RETRANSMISSION_TIMEOUT */
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/******************************************************************************/
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/************************** More parameterization *****************************/
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/******************************************************************************/
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#ifndef RPL_CONF_MIN_HOPRANKINC
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/* RFC6550 defines the default MIN_HOPRANKINC as 256.
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* However, we use MRHOF as a default Objective Function (RFC6719),
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* which recommends setting MIN_HOPRANKINC with care, in particular
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* when used with ETX as a metric. ETX is computed as a fixed point
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* real with a divisor of 128 (RFC6719, RFC6551). We choose to also
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* use 128 for RPL_MIN_HOPRANKINC, resulting in a rank equal to the
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* ETX path cost. Larger values may also be desirable, as discussed
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* in section 6.1 of RFC6719. */
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#if RPL_OF_OCP == RPL_OCP_MRHOF
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#define RPL_MIN_HOPRANKINC 128
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#else /* RPL_OF_OCP == RPL_OCP_MRHOF */
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#define RPL_MIN_HOPRANKINC 256
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#endif /* RPL_OF_OCP == RPL_OCP_MRHOF */
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#else /* RPL_CONF_MIN_HOPRANKINC */
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#define RPL_MIN_HOPRANKINC RPL_CONF_MIN_HOPRANKINC
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#endif /* RPL_CONF_MIN_HOPRANKINC */
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#ifndef RPL_CONF_MAX_RANKINC
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#define RPL_MAX_RANKINC (8 * RPL_MIN_HOPRANKINC)
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#else /* RPL_CONF_MAX_RANKINC */
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#define RPL_MAX_RANKINC RPL_CONF_MAX_RANKINC
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#endif /* RPL_CONF_MAX_RANKINC */
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#ifndef RPL_CONF_SIGNIFICANT_CHANGE_THRESHOLD
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#define RPL_SIGNIFICANT_CHANGE_THRESHOLD (4 * RPL_MIN_HOPRANKINC)
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#else /* RPL_CONF_SIGNIFICANT_CHANGE_THRESHOLD */
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#define RPL_SIGNIFICANT_CHANGE_THRESHOLD RPL_CONF_SIGNIFICANT_CHANGE_THRESHOLD
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#endif /* RPL_CONF_SIGNIFICANT_CHANGE_THRESHOLD */
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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 0 /* Default of 0 for compression */
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#endif /* RPL_CONF_DEFAULT_INSTANCE */
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/* Set to have the root advertise a grounded DAG */
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#ifndef RPL_CONF_GROUNDED
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#define RPL_GROUNDED 0
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#else
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#define RPL_GROUNDED RPL_CONF_GROUNDED
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#endif /* !RPL_CONF_GROUNDED */
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/*
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* DAG preference field
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*/
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#ifdef RPL_CONF_PREFERENCE
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#define RPL_PREFERENCE RPL_CONF_PREFERENCE
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#else
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#define RPL_PREFERENCE 0
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#endif
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#endif /* RPL_CONF_H */
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