nes-proj/os/services/deployment/deployment.c
2018-06-06 15:38:26 +02:00

142 lines
4.3 KiB
C

/*
* Copyright (c) 2018, RISE SICS.
* 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.
*
*/
/**
* \addtogroup deployment
* @{
*/
/**
* \file
* Code managing id<->mac address<->IPv6 address mapping, and doing this
* for different deployment scenarios: Cooja, Nodes, Indriya or Twist testbeds
*
* \author Simon Duquennoy <simonduq@sics.se>
*/
#include "contiki.h"
#include "contiki-net.h"
#include "deployment.h"
#include "sys/node-id.h"
#include <string.h>
#include <stdio.h>
/**
* \brief List of ID<->MAC mapping used for different deployments
*/
extern const struct id_mac DEPLOYMENT_MAPPING[];
/**
* \brief The number of nodes in the deployment
*/
static int node_count = 0;
/*---------------------------------------------------------------------------*/
void
deployment_init(void)
{
const struct id_mac *curr = DEPLOYMENT_MAPPING;
/* Initialize node_id */
node_id = deployment_id_from_lladdr((const linkaddr_t *)&linkaddr_node_addr);
/* Count nodes */
node_count = 0;
while(curr->id != 0) {
node_count++;
curr++;
}
}
/*---------------------------------------------------------------------------*/
int
deployment_node_count(void)
{
return node_count;
}
/*---------------------------------------------------------------------------*/
uint16_t
deployment_id_from_lladdr(const linkaddr_t *lladdr)
{
const struct id_mac *curr = DEPLOYMENT_MAPPING;
if(lladdr == NULL) {
return 0;
}
while(curr->id != 0) {
/* Assume network-wide unique 16-bit MAC addresses */
if(linkaddr_cmp(lladdr, &curr->mac)) {
return curr->id;
}
curr++;
}
return 0;
}
/*---------------------------------------------------------------------------*/
void
deployment_lladdr_from_id(linkaddr_t *lladdr, uint16_t id)
{
const struct id_mac *curr = DEPLOYMENT_MAPPING;
if(id == 0 || lladdr == NULL) {
return;
}
while(curr->id != 0) {
if(curr->id == id) {
linkaddr_copy(lladdr, &curr->mac);
return;
}
curr++;
}
}
/*---------------------------------------------------------------------------*/
uint16_t
deployment_id_from_iid(const uip_ipaddr_t *ipaddr)
{
const linkaddr_t lladdr;
uip_ds6_set_lladdr_from_iid((uip_lladdr_t *)&lladdr, ipaddr);
return deployment_id_from_lladdr(&lladdr);
}
/*---------------------------------------------------------------------------*/
void
deployment_iid_from_id(uip_ipaddr_t *ipaddr, uint16_t id)
{
linkaddr_t lladdr;
deployment_lladdr_from_id(&lladdr, id);
uip_ds6_set_addr_iid(ipaddr, (uip_lladdr_t *)&lladdr);
}
/*---------------------------------------------------------------------------*/
uint16_t
deployment_id_from_index(uint16_t index)
{
if(index < deployment_node_count()) {
return DEPLOYMENT_MAPPING[index].id;
} else {
return 0;
}
}
/*---------------------------------------------------------------------------*/
/** @} */