81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
/*
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* Copyright (c) 2014, 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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* \file
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* Interface to anti-replay mechanisms.
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* \author
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* Konrad Krentz <konrad.krentz@gmail.com>
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*/
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/**
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* \addtogroup llsec802154
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* @{
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*/
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#ifndef ANTI_REPLAY_H
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#define ANTI_REPLAY_H
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#include "contiki.h"
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struct anti_replay_info {
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uint32_t last_broadcast_counter;
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uint32_t last_unicast_counter;
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};
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/**
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* \brief Sets the frame counter packetbuf attributes.
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*/
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void anti_replay_set_counter(void);
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/**
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* \brief Gets the frame counter from packetbuf.
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*/
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uint32_t anti_replay_get_counter(void);
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/**
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* \brief Initializes the anti-replay information about the sender
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* \param info Anti-replay information about the sender
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*/
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void anti_replay_init_info(struct anti_replay_info *info);
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/**
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* \brief Checks if received frame was replayed
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* \param info Anti-replay information about the sender
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* \retval 0 <-> received frame was not replayed
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*/
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int anti_replay_was_replayed(struct anti_replay_info *info);
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#endif /* ANTI_REPLAY_H */
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/** @} */
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