94 lines
3.8 KiB
C
94 lines
3.8 KiB
C
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/*
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* Copyright (C) 2008 The Android Open Source Project
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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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* * 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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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* 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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#ifndef _NETINET_IN6_H
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#define _NETINET_IN6_H
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#include <linux/in6.h>
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#define IN6_IS_ADDR_UNSPECIFIED(a) \
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((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
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#define IN6_IS_ADDR_LOOPBACK(a) \
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((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
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#define IN6_IS_ADDR_V4COMPAT(a) \
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((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
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#define IN6_IS_ADDR_V4MAPPED(a) \
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((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
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#define IN6_IS_ADDR_LINKLOCAL(a) \
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(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
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#define IN6_IS_ADDR_SITELOCAL(a) \
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(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
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#define IN6_IS_ADDR_MULTICAST(a) \
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(((__const uint8_t *) (a))[0] == 0xff)
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#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
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#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
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#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
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#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
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#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08
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#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
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#define IPV6_ADDR_MC_SCOPE(a) \
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((a)->s6_addr[1] & 0x0f)
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#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
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#define IN6_IS_ADDR_MC_SITELOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
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#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
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#define IN6_ARE_ADDR_EQUAL(a, b) \
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(memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
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#define INET6_ADDRSTRLEN 46
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#endif /* _NETINET_IN6_H */
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