Contiki-NG
llsec802154.h
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1/*
2 * Copyright (c) 2013, Hasso-Plattner-Institut.
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 * This file is part of the Contiki operating system.
30 *
31 */
32
33 /**
34 * \addtogroup link-layer
35 * @{
36 *
37 * \defgroup llsec802154 Link-layer security common functionality
38 *
39 * Macros related to 802.15.4 link-layer security.
40 *
41 * @{
42 */
43
44/**
45 * \file
46 * Common functionality of 802.15.4-compliant llsec_drivers.
47 * \author
48 * Konrad Krentz <konrad.krentz@gmail.com>
49 */
50
51#ifndef LLSEC802154_H_
52#define LLSEC802154_H_
53
55#include "net/ipv6/uip.h"
56
57#ifdef LLSEC802154_CONF_ENABLED
58#define LLSEC802154_ENABLED LLSEC802154_CONF_ENABLED
59#else /* LLSEC802154_CONF_ENABLED */
60#define LLSEC802154_ENABLED 0
61#endif /* LLSEC802154_CONF_ENABLED */
62
63#ifdef LLSEC802154_CONF_USES_EXPLICIT_KEYS
64#define LLSEC802154_USES_EXPLICIT_KEYS LLSEC802154_CONF_USES_EXPLICIT_KEYS
65#else /* LLSEC802154_CONF_USES_EXPLICIT_KEYS */
66#define LLSEC802154_USES_EXPLICIT_KEYS LLSEC802154_ENABLED
67#endif /* LLSEC802154_CONF_USES_EXPLICIT_KEYS */
68
69#ifdef LLSEC802154_CONF_USES_AUX_HEADER
70#define LLSEC802154_USES_AUX_HEADER LLSEC802154_CONF_USES_AUX_HEADER
71#else /* LLSEC802154_CONF_USES_AUX_HEADER */
72#define LLSEC802154_USES_AUX_HEADER LLSEC802154_ENABLED
73#endif /* LLSEC802154_CONF_USES_AUX_HEADER */
74
75#ifdef LLSEC802154_CONF_USES_FRAME_COUNTER
76#define LLSEC802154_USES_FRAME_COUNTER LLSEC802154_CONF_USES_FRAME_COUNTER
77#else
78#define LLSEC802154_USES_FRAME_COUNTER LLSEC802154_ENABLED
79#endif /* LLSEC802154_CONF_USES_FRAME_COUNTER */
80
81#if UIP_BYTE_ORDER == UIP_LITTLE_ENDIAN
82#define LLSEC802154_HTONS(n) (n)
83#define LLSEC802154_HTONL(n) (n)
84#else /* UIP_CONF_BYTE_ORDER == UIP_LITTLE_ENDIAN */
85#define LLSEC802154_HTONS(n) (uint16_t)((((uint16_t) (n)) << 8) | (((uint16_t) (n)) >> 8))
86#define LLSEC802154_HTONL(n) (((uint32_t)UIP_HTONS(n) << 16) | UIP_HTONS((uint32_t)(n) >> 16))
87#endif /* UIP_CONF_BYTE_ORDER == UIP_LITTLE_ENDIAN */
88
89#define LLSEC802154_MIC_LEN(sec_lvl) (2 << (sec_lvl & 3))
90
91#if LLSEC802154_USES_AUX_HEADER
92#define LLSEC802154_PACKETBUF_MIC_LEN() LLSEC802154_MIC_LEN(packetbuf_attr(PACKETBUF_ATTR_SECURITY_LEVEL))
93#else
94#define LLSEC802154_PACKETBUF_MIC_LEN() 0
95#endif
96
97#endif /* LLSEC802154_H_ */
98
99/** @} */
100/** @} */
802.15.4 frame creation and parsing functions
Header file for the uIP TCP/IP stack.