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 #define LLSEC802154_MIC_LEN(sec_lvl) (2 << (sec_lvl & 3))
64 
65 #ifdef LLSEC802154_CONF_USES_EXPLICIT_KEYS
66 #define LLSEC802154_USES_EXPLICIT_KEYS LLSEC802154_CONF_USES_EXPLICIT_KEYS
67 #else /* LLSEC802154_CONF_USES_EXPLICIT_KEYS */
68 #define LLSEC802154_USES_EXPLICIT_KEYS LLSEC802154_ENABLED
69 #endif /* LLSEC802154_CONF_USES_EXPLICIT_KEYS */
70 
71 #ifdef LLSEC802154_CONF_USES_AUX_HEADER
72 #define LLSEC802154_USES_AUX_HEADER LLSEC802154_CONF_USES_AUX_HEADER
73 #else /* LLSEC802154_CONF_USES_AUX_HEADER */
74 #define LLSEC802154_USES_AUX_HEADER LLSEC802154_ENABLED
75 #endif /* LLSEC802154_CONF_USES_AUX_HEADER */
76 
77 #ifdef LLSEC802154_CONF_USES_FRAME_COUNTER
78 #define LLSEC802154_USES_FRAME_COUNTER LLSEC802154_CONF_USES_FRAME_COUNTER
79 #else
80 #define LLSEC802154_USES_FRAME_COUNTER LLSEC802154_ENABLED
81 #endif /* LLSEC802154_CONF_USES_FRAME_COUNTER */
82 
83 #if UIP_BYTE_ORDER == UIP_LITTLE_ENDIAN
84 #define LLSEC802154_HTONS(n) (n)
85 #define LLSEC802154_HTONL(n) (n)
86 #else /* UIP_CONF_BYTE_ORDER == UIP_LITTLE_ENDIAN */
87 #define LLSEC802154_HTONS(n) (uint16_t)((((uint16_t) (n)) << 8) | (((uint16_t) (n)) >> 8))
88 #define LLSEC802154_HTONL(n) (((uint32_t)UIP_HTONS(n) << 16) | UIP_HTONS((uint32_t)(n) >> 16))
89 #endif /* UIP_CONF_BYTE_ORDER == UIP_LITTLE_ENDIAN */
90 
91 #endif /* LLSEC802154_H_ */
92 
93 /** @} */
94 /** @} */
802.15.4 frame creation and parsing functions
Header file for the uIP TCP/IP stack.