87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
/*
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* Copyright (c) 2017, Inria.
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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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* \addtogroup rpl-lite
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* @{
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*
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* \file
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* Header file for rpl-ext-header
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*
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* \author Simon Duquennoy <simon.duquennoy@inria.fr>
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*/
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#ifndef RPL_EXT_HEADER_H_
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#define RPL_EXT_HEADER_H_
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/********** Public functions **********/
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/**
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* Look for next hop from SRH of current uIP packet.
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*
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* \param ipaddr A pointer to the address where to store the next hop.
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* \return 1 if a next hop was found, 0 otherwise
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*/
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int rpl_ext_header_srh_get_next_hop(uip_ipaddr_t *ipaddr);
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/**
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* Process and update SRH in-place,
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* i.e. internal address swapping as per RFC6554
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* \return 1 if SRH found, 0 otherwise
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*/
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int rpl_ext_header_srh_update(void);
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/**
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* Process and update the RPL extension headers of the current uIP packet.
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*
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* \param uip_ext_opt_offset The offset within the uIP packet where
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* extension headers start
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* \return 1 in case the packet is valid and to be processed further,
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* 0 in case the packet must be dropped.
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*/
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int rpl_ext_header_hbh_update(int uip_ext_opt_offset);
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/**
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* Adds/updates RPL extension headers to current uIP packet.
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*
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* \return 1 in case of success, 0 otherwise
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*/
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int rpl_ext_header_update(void);
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/**
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* Removes all RPL extension headers.
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*/
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void rpl_ext_header_remove(void);
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/** @} */
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#endif /* RPL_EXT_HEADER_H_ */
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