Contiki-NG
node-id.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
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19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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28  *
29  * This file is part of the Contiki operating system.
30  *
31  */
32 
33 /**
34  * \file
35  * Node-id management
36  * \author
37  * Simon Duquennoy <simon.duquennoy@ri.se>
38  */
39 
40 #include "contiki.h"
41 #include "sys/node-id.h"
42 #include "net/linkaddr.h"
44 
45 uint16_t node_id = 0;
46 
47 void
48 node_id_init(void) {
49 #if BUILD_WITH_DEPLOYMENT
51 #else /* BUILD_WITH_DEPLOYMENT */
52  /* Initialize with a default value derived from linkaddr */
53  node_id = linkaddr_node_addr.u8[LINKADDR_SIZE - 1]
54  + (linkaddr_node_addr.u8[LINKADDR_SIZE - 2] << 8);
55 #endif /* BUILD_WITH_DEPLOYMENT */
56 }
Header file for the link-layer address representation
Node-id (simple 16-bit identifiers) handling.
linkaddr_t linkaddr_node_addr
The link-layer address of the node.
Definition: linkaddr.c:48
void node_id_init(void)
Initialize the node ID.
Definition: node-id.c:48
void deployment_init(void)
DEPLOYMENT_MAPPING: A table of struct id_mac that provides ID-MAC mapping for a deployment.
Definition: deployment.c:62
Per-deployment MAC <-> nodeid mapping.