86 lines
3.2 KiB
C
86 lines
3.2 KiB
C
/*
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* Copyright (c) 2013, Hasso-Plattner-Institut.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \addtogroup link-layer
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* \defgroup llsec802154 Link-Layer security common functionality
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*
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* Macros related to 802.15.4 link-layer security.
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*
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* @{
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*/
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/**
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* \file
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* Common functionality of 802.15.4-compliant llsec_drivers.
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* \author
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* Konrad Krentz <konrad.krentz@gmail.com>
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*/
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#ifndef LLSEC802154_H_
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#define LLSEC802154_H_
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#include "net/mac/framer/frame802154.h"
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#include "net/ipv6/uip.h"
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#ifdef LLSEC802154_CONF_ENABLED
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#define LLSEC802154_ENABLED LLSEC802154_CONF_ENABLED
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#else /* LLSEC802154_CONF_ENABLED */
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#define LLSEC802154_ENABLED 0
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#endif /* LLSEC802154_CONF_ENABLED */
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#define LLSEC802154_MIC_LEN(sec_lvl) (2 << (sec_lvl & 3))
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#ifdef LLSEC802154_CONF_USES_EXPLICIT_KEYS
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#define LLSEC802154_USES_EXPLICIT_KEYS LLSEC802154_CONF_USES_EXPLICIT_KEYS
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#else /* LLSEC802154_CONF_USES_EXPLICIT_KEYS */
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#define LLSEC802154_USES_EXPLICIT_KEYS LLSEC802154_ENABLED
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#endif /* LLSEC802154_CONF_USES_EXPLICIT_KEYS */
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#ifdef LLSEC802154_CONF_USES_AUX_HEADER
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#define LLSEC802154_USES_AUX_HEADER LLSEC802154_CONF_USES_AUX_HEADER
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#else /* LLSEC802154_CONF_USES_AUX_HEADER */
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#define LLSEC802154_USES_AUX_HEADER LLSEC802154_ENABLED
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#endif /* LLSEC802154_CONF_USES_AUX_HEADER */
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#if UIP_BYTE_ORDER == UIP_LITTLE_ENDIAN
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#define LLSEC802154_HTONS(n) (n)
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#define LLSEC802154_HTONL(n) (n)
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#else /* UIP_CONF_BYTE_ORDER == UIP_LITTLE_ENDIAN */
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#define LLSEC802154_HTONS(n) (uint16_t)((((uint16_t) (n)) << 8) | (((uint16_t) (n)) >> 8))
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#define LLSEC802154_HTONL(n) (((uint32_t)UIP_HTONS(n) << 16) | UIP_HTONS((uint32_t)(n) >> 16))
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#endif /* UIP_CONF_BYTE_ORDER == UIP_LITTLE_ENDIAN */
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#endif /* LLSEC802154_H_ */
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/** @} */
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