nes-proj/os/net/ipv6/ip64-addr.h

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/*
* Copyright (c) 2012, Thingsquare, http://www.thingsquare.com/.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef IP64_ADDR_H
#define IP64_ADDR_H
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#include "net/ipv6/uip.h"
/**
* \brief Is IPv4-mapped Address
*
* See https://tools.ietf.org/html/rfc6890#page-14
*/
#define ip64_addr_is_ipv4_mapped_addr(a) \
((((a)->u16[0]) == 0) && \
(((a)->u16[1]) == 0) && \
(((a)->u16[2]) == 0) && \
(((a)->u16[3]) == 0) && \
(((a)->u16[4]) == 0) && \
(((a)->u16[5]) == 0xFFFF))
void ip64_addr_copy4(uip_ip4addr_t *dest, const uip_ip4addr_t *src);
void ip64_addr_copy6(uip_ip6addr_t *dest, const uip_ip6addr_t *src);
int ip64_addr_6to4(const uip_ip6addr_t *ipv6addr,
uip_ip4addr_t *ipv4addr);
int ip64_addr_4to6(const uip_ip4addr_t *ipv4addr,
uip_ip6addr_t *ipv6addr);
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int ip64_addr_is_ip64(const uip_ip6addr_t *ipv6addr);
void ip64_addr_set_prefix(const uip_ip6addr_t *prefix, uint8_t prefix_len);
#endif /* IP64_ADDR_H */