deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

added ContikiRPL - an implementation of IETF ROLL RPL

Browse source
This commit is contained in:
joxe 2010-04-30 13:43:53 +00:00
parent 167b0d636e
commit 168a65d989
8 changed files with 1926 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

97
core/net/rpl/rpl-of0.c Normal file
View file

@ -0,0 +1,97 @@
/**
* \addtogroup uip6
* @{
*/
/*
* 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.
*
* $Id: rpl-of0.c,v 1.1 2010/04/30 13:43:53 joxe Exp $
*/
/**
* \file
* An implementation of RPL's objective function 0.
*
* \author Joakim Eriksson <joakime@sics.se>, Nicolas Tsiftes <nvt@sics.se>
*/
#include "net/rpl/rpl.h"
#define DEBUG DEBUG_ANNOTATE
#include "net/uip-debug.h"
static rpl_neighbor_t *best_parent(rpl_neighbor_t *, rpl_neighbor_t *);
static rpl_rank_t increment_rank(rpl_rank_t, rpl_neighbor_t *);
rpl_of_t rpl_of0 = {
best_parent,
increment_rank,
0
};
#define DEFAULT_RANK_INCREMENT 4
#define MINIMUM_RANK_INCREMENT 1
#define MAXIMUM_RANK_INCREMENT 16
#define MAXIMUM_RANK_STRETCH 4
static rpl_rank_t
increment_rank(rpl_rank_t rank, rpl_neighbor_t *parent)
{
if((rpl_rank_t)(rank + DEFAULT_RANK_INCREMENT) < rank) {
PRINTF("RPL: OF0 rank %d incremented to infinite rank due to wrapping\n",
rank);
return INFINITE_RANK;
}
return rank + DEFAULT_RANK_INCREMENT;
}
static rpl_neighbor_t *
best_parent(rpl_neighbor_t *p1, rpl_neighbor_t *p2)
{
PRINTF("RPL: Comparing parent ");
PRINT6ADDR(&p1->addr);
PRINTF(" (confidence %d, rank %d) with parent ",
p1->local_confidence, p1->rank);
PRINT6ADDR(&p2->addr);
PRINTF(" (confidence %d, rank %d)\n",
p2->local_confidence, p2->rank);
/* TODO: Add other rules. */
if(p1->local_confidence > p2->local_confidence) {
return p1;
} else if(p2->local_confidence > p1->local_confidence) {
return p2;
}
if(p1->rank < p2->rank) {
return p1;
}
return p2;
}