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/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
*
* 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 OWNER 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 _NETINET_IN6_H
#define _NETINET_IN6_H
#include <linux/in6.h>
#define IN6_IS_ADDR_UNSPECIFIED(a) \
((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
#define IN6_IS_ADDR_LOOPBACK(a) \
((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
#define IN6_IS_ADDR_V4COMPAT(a) \
((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
#define IN6_IS_ADDR_V4MAPPED(a) \
((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
#define IN6_IS_ADDR_LINKLOCAL(a) \
(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
#define IN6_IS_ADDR_SITELOCAL(a) \
(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
/* RFC 4193. */
#define IN6_IS_ADDR_ULA(a) \
(((a)->s6_addr[0] & 0xfe) == 0xfc)
#define IN6_IS_ADDR_MULTICAST(a) \
(((__const uint8_t *) (a))[0] == 0xff)
#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08
#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
#define IPV6_ADDR_MC_SCOPE(a) \
((a)->s6_addr[1] & 0x0f)
#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
#define IN6_IS_ADDR_MC_SITELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
#define IN6_ARE_ADDR_EQUAL(a, b) \
(memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
#define INET6_ADDRSTRLEN 46
#define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
#define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP
#define IN6ADDR_ANY_INIT {{{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}}}
#define ipv6mr_interface ipv6mr_ifindex
#endif /* _NETINET_IN6_H */
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