ndp_misc.h

00001 /**
00002  * @file ndp_misc.h
00003  * @brief Helper functions for NDP (Neighbor Discovery Protocol)
00004  *
00005  * @section License
00006  *
00007  * Copyright (C) 2010-2017 Oryx Embedded SARL. All rights reserved.
00008  *
00009  * This file is part of CycloneTCP Open.
00010  *
00011  * This program is free software; you can redistribute it and/or
00012  * modify it under the terms of the GNU General Public License
00013  * as published by the Free Software Foundation; either version 2
00014  * of the License, or (at your option) any later version.
00015  *
00016  * This program is distributed in the hope that it will be useful,
00017  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  * GNU General Public License for more details.
00020  *
00021  * You should have received a copy of the GNU General Public License
00022  * along with this program; if not, write to the Free Software Foundation,
00023  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00024  *
00025  * @author Oryx Embedded SARL (www.oryx-embedded.com)
00026  * @version 1.7.6
00027  **/
00028 
00029 #ifndef _NDP_MISC_H
00030 #define _NDP_MISC_H
00031 
00032 //Dependencies
00033 #include "core/net.h"
00034 #include "ipv6/ndp.h"
00035 
00036 //NDP related functions
00037 void ndpParsePrefixInfoOption(NetInterface *interface, NdpPrefixInfoOption *option);
00038 
00039 void ndpUpdateAddrList(NetInterface *interface);
00040 void ndpUpdatePrefixList(NetInterface *interface);
00041 void ndpUpdateDefaultRouterList(NetInterface *interface);
00042 
00043 error_t ndpSelectDefaultRouter(NetInterface *interface,
00044    const Ipv6Addr *unreachableAddr, Ipv6Addr *addr);
00045 
00046 bool_t ndpIsFirstHopRouter(NetInterface *interface,
00047    const Ipv6Addr *destAddr, const Ipv6Addr *nextHop);
00048 
00049 error_t ndpSelectNextHop(NetInterface *interface, const Ipv6Addr *destAddr,
00050    const Ipv6Addr *unreachableNextHop, Ipv6Addr *nextHop);
00051 
00052 void ndpUpdateNextHop(NetInterface *interface, const Ipv6Addr *nextHop);
00053 
00054 void ndpAddOption(void *message, size_t *messageLength,
00055    uint8_t type, const void *value, size_t length);
00056 
00057 void *ndpGetOption(uint8_t *options, size_t length, uint8_t type);
00058 
00059 error_t ndpCheckOptions(const uint8_t *options, size_t length);
00060 
00061 #endif
00062