include/isc/ipv6.h

	ipv6.h revision f6f4ceece41f040cc43722afa9a5cd1f54a576b6
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley/*
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * Copyright (C) 1999  Internet Software Consortium.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * Permission to use, copy, modify, and distribute this software for any
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * purpose with or without fee is hereby granted, provided that the above
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * copyright notice and this permission notice appear in all copies.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * SOFTWARE.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley */
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#ifndef ISC_IPV6_H
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#define ISC_IPV6_H 1
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley/*****
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley ***** Module Info
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *****/
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley/*
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * IPv6 definitions for systems which do not support IPv6.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * MP:
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *  No impact.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * Reliability:
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *  No anticipated impact.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * Resources:
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *  N/A.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * Security:
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *  No anticipated impact.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * Standards:
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *  RFC 2553.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley */
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley/***
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *** Imports.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley ***/
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#include <isc/lang.h>
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#include <isc/int.h>
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob HalleyISC_LANG_BEGINDECLS
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley/***
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *** Types.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley ***/
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halleystruct in6_addr {
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley        union {
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley        isc_uint8_t _S6_u8[16];
f6f4ceece41f040cc43722afa9a5cd1f54a576b6Michael Graff        isc_uint16_t    _S6_u16[8];
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley        isc_uint32_t    _S6_u32[4];
f6f4ceece41f040cc43722afa9a5cd1f54a576b6Michael Graff#if 0 /* Is this really part of the standard? */
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley        isc_uint64_t    _S6_u64[2];
f6f4ceece41f040cc43722afa9a5cd1f54a576b6Michael Graff#endif
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley        } _S6_un;
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley};
f6f4ceece41f040cc43722afa9a5cd1f54a576b6Michael Graff#define s6_addr     _S6_un._S6_u8
f6f4ceece41f040cc43722afa9a5cd1f54a576b6Michael Graff#define s6_addr8    _S6_un._S6_u8
f6f4ceece41f040cc43722afa9a5cd1f54a576b6Michael Graff#define s6_addr16   _S6_un._S6_u16
f6f4ceece41f040cc43722afa9a5cd1f54a576b6Michael Graff#define s6_addr32   _S6_un._S6_u32
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
705a1d752e32d89efc787e1f25d51777565afbc4Bob Halley#define IN6ADDR_ANY_INIT    {{{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}}
705a1d752e32d89efc787e1f25d51777565afbc4Bob Halley#define IN6ADDR_LOOPBACK_INIT   {{{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }}}
705a1d752e32d89efc787e1f25d51777565afbc4Bob Halley
42c479991fd6ae1a3189ca24fb1773ea27f30aa1Mark Andrewsextern const struct in6_addr in6addr_any;
42c479991fd6ae1a3189ca24fb1773ea27f30aa1Mark Andrewsextern const struct in6_addr in6addr_loopback;
705a1d752e32d89efc787e1f25d51777565afbc4Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halleystruct sockaddr_in6 {
5f42ef032d72001370d8bd5cd9ea3a5d032a67c8James Brister#ifdef ISC_PLATFORM_HAVESALEN
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley    isc_uint8_t     sin6_len;
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley    isc_uint8_t     sin6_family;
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#else
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley    isc_uint16_t        sin6_family;
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#endif
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley    isc_uint16_t        sin6_port;
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley    isc_uint32_t        sin6_flowinfo;
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley    struct in6_addr     sin6_addr;
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley    isc_uint32_t        sin6_scope_id;
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley};
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
5f42ef032d72001370d8bd5cd9ea3a5d032a67c8James Brister#ifdef ISC_PLATFORM_HAVESALEN
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#define SIN6_LEN 1
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#endif
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
443ad8c09c31634a21ef73794aca32594543829dMichael Graff/*
443ad8c09c31634a21ef73794aca32594543829dMichael Graff * Unspecified
443ad8c09c31634a21ef73794aca32594543829dMichael Graff */
443ad8c09c31634a21ef73794aca32594543829dMichael Graff#define IN6_IS_ADDR_UNSPECIFIED(a)      \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff        (((a)->s6_addr32[0] == 0) &&    \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[1] == 0) &&    \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[2] == 0) &&    \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[3] == 0))
443ad8c09c31634a21ef73794aca32594543829dMichael Graff
443ad8c09c31634a21ef73794aca32594543829dMichael Graff/*
443ad8c09c31634a21ef73794aca32594543829dMichael Graff * Loopback
443ad8c09c31634a21ef73794aca32594543829dMichael Graff */
443ad8c09c31634a21ef73794aca32594543829dMichael Graff#define IN6_IS_ADDR_LOOPBACK(a)         \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff        (((a)->s6_addr32[0] == 0) &&    \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[1] == 0) &&    \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[2] == 0) &&    \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[3] == htonl(1)))
443ad8c09c31634a21ef73794aca32594543829dMichael Graff
443ad8c09c31634a21ef73794aca32594543829dMichael Graff/*
443ad8c09c31634a21ef73794aca32594543829dMichael Graff * IPv4 compatible
443ad8c09c31634a21ef73794aca32594543829dMichael Graff */
443ad8c09c31634a21ef73794aca32594543829dMichael Graff#define IN6_IS_ADDR_V4COMPAT(a)         \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff        (((a)->s6_addr32[0] == 0) &&    \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[1] == 0) &&    \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[2] == 0) &&    \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[3] != 0) &&    \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[3] != htonl(1)))
443ad8c09c31634a21ef73794aca32594543829dMichael Graff
443ad8c09c31634a21ef73794aca32594543829dMichael Graff/*
443ad8c09c31634a21ef73794aca32594543829dMichael Graff * Mapped
443ad8c09c31634a21ef73794aca32594543829dMichael Graff */
443ad8c09c31634a21ef73794aca32594543829dMichael Graff#define IN6_IS_ADDR_V4MAPPED(a)               \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff        (((a)->s6_addr32[0] == 0) &&          \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[1] == 0) &&          \
443ad8c09c31634a21ef73794aca32594543829dMichael Graff         ((a)->s6_addr32[2] == htonl(0x0000ffff)))
443ad8c09c31634a21ef73794aca32594543829dMichael Graff
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob HalleyISC_LANG_ENDDECLS
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#endif /* ISC_IPV6_H */