Contiki-NG
deployment.c
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1/*
2 * Copyright (c) 2018, RISE SICS.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the Institute nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 */
30
31/**
32* \addtogroup deployment
33* @{
34*/
35
36/**
37 * \file
38 * Code managing id<->mac address<->IPv6 address mapping, and doing this
39 * for different deployment scenarios: Cooja, Nodes, Indriya or Twist testbeds
40 *
41 * \author Simon Duquennoy <simonduq@sics.se>
42 */
43
44#include "contiki.h"
45#include "contiki-net.h"
46#include "deployment.h"
47#include "sys/node-id.h"
48#include <string.h>
49#include <stdio.h>
50
51/**
52 * \brief List of ID<->MAC mapping used for different deployments
53 */
54extern const struct id_mac DEPLOYMENT_MAPPING[];
55/**
56 * \brief The number of nodes in the deployment
57 */
58static int node_count = 0;
59
60/*---------------------------------------------------------------------------*/
61void
63{
64 const struct id_mac *curr = DEPLOYMENT_MAPPING;
65 /* Initialize node_id */
66 node_id = deployment_id_from_lladdr((const linkaddr_t *)&linkaddr_node_addr);
67 /* Count nodes */
68 node_count = 0;
69 while(curr->id != 0) {
70 node_count++;
71 curr++;
72 }
73}
74/*---------------------------------------------------------------------------*/
75int
77{
78 return node_count;
79}
80/*---------------------------------------------------------------------------*/
81uint16_t
82deployment_id_from_lladdr(const linkaddr_t *lladdr)
83{
84 const struct id_mac *curr = DEPLOYMENT_MAPPING;
85 if(lladdr == NULL) {
86 return 0;
87 }
88 while(curr->id != 0) {
89 /* Assume network-wide unique 16-bit MAC addresses */
90 if(linkaddr_cmp(lladdr, &curr->mac)) {
91 return curr->id;
92 }
93 curr++;
94 }
95 return 0;
96}
97/*---------------------------------------------------------------------------*/
98void
99deployment_lladdr_from_id(linkaddr_t *lladdr, uint16_t id)
100{
101 const struct id_mac *curr = DEPLOYMENT_MAPPING;
102 if(id == 0 || lladdr == NULL) {
103 return;
104 }
105 while(curr->id != 0) {
106 if(curr->id == id) {
107 linkaddr_copy(lladdr, &curr->mac);
108 return;
109 }
110 curr++;
111 }
112}
113/*---------------------------------------------------------------------------*/
114uint16_t
115deployment_id_from_iid(const uip_ipaddr_t *ipaddr)
116{
117 const linkaddr_t lladdr;
118 uip_ds6_set_lladdr_from_iid((uip_lladdr_t *)&lladdr, ipaddr);
119 return deployment_id_from_lladdr(&lladdr);
120}
121/*---------------------------------------------------------------------------*/
122void
123deployment_iid_from_id(uip_ipaddr_t *ipaddr, uint16_t id)
124{
125 linkaddr_t lladdr;
126 deployment_lladdr_from_id(&lladdr, id);
127 uip_ds6_set_addr_iid(ipaddr, (uip_lladdr_t *)&lladdr);
128}
129/*---------------------------------------------------------------------------*/
130uint16_t
132{
133 if(index < deployment_node_count()) {
134 return DEPLOYMENT_MAPPING[index].id;
135 } else {
136 return 0;
137 }
138}
139/*---------------------------------------------------------------------------*/
140
141/** @} */
Per-deployment MAC <-> nodeid mapping.
uint16_t deployment_id_from_index(uint16_t index)
Get node ID from index in mapping table.
Definition: deployment.c:131
int deployment_node_count(void)
Get the number of nodes for the deployment (length of mapping table)
Definition: deployment.c:76
uint16_t deployment_id_from_iid(const uip_ipaddr_t *ipaddr)
Get node ID from the IID of an IPv6 address.
Definition: deployment.c:115
void deployment_init(void)
DEPLOYMENT_MAPPING: A table of struct id_mac that provides ID-MAC mapping for a deployment.
Definition: deployment.c:62
void deployment_iid_from_id(uip_ipaddr_t *ipaddr, uint16_t id)
Get IPv6 IID from node IDs.
Definition: deployment.c:123
static int node_count
The number of nodes in the deployment.
Definition: deployment.c:58
void deployment_lladdr_from_id(linkaddr_t *lladdr, uint16_t id)
Get node link-layer address from a node ID, from the deployment mapping table.
Definition: deployment.c:99
uint16_t deployment_id_from_lladdr(const linkaddr_t *lladdr)
Get node ID from a link-layer address, from the deployment mapping table.
Definition: deployment.c:82
const struct id_mac DEPLOYMENT_MAPPING[]
List of ID<->MAC mapping used for different deployments.
linkaddr_t linkaddr_node_addr
The link-layer address of the node.
Definition: linkaddr.c:48
void linkaddr_copy(linkaddr_t *dest, const linkaddr_t *src)
Copy a link-layer address.
Definition: linkaddr.c:63
bool linkaddr_cmp(const linkaddr_t *addr1, const linkaddr_t *addr2)
Compare two link-layer addresses.
Definition: linkaddr.c:69
void uip_ds6_set_addr_iid(uip_ipaddr_t *ipaddr, const uip_lladdr_t *lladdr)
set the last 64 bits of an IP address based on the MAC address
Definition: uip-ds6.c:576
void uip_ds6_set_lladdr_from_iid(uip_lladdr_t *lladdr, const uip_ipaddr_t *ipaddr)
Build a link-layer address from an IPv6 address based on its UUID64.
Definition: uip-ds6.c:597
Node-id (simple 16-bit identifiers) handling.
ID<->MAC address mapping structure.
Definition: deployment.h:54
static uip_ipaddr_t ipaddr
Pointer to prefix information option in uip_buf.
Definition: uip-nd6.c:116