ipv6.h revision ab023a65562e62b85a824509d829b6fad87e00b1
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley/*
dafcb997e390efa4423883dafd100c975c4095d6Mark Andrews * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
dafcb997e390efa4423883dafd100c975c4095d6Mark Andrews * Copyright (C) 1999-2002 Internet Software Consortium.
40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence *
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.
40f53fa8d9c6a4fc38c0014495e7a42b08f52481David Lawrence *
dafcb997e390efa4423883dafd100c975c4095d6Mark Andrews * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
dafcb997e390efa4423883dafd100c975c4095d6Mark Andrews * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
dafcb997e390efa4423883dafd100c975c4095d6Mark Andrews * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
dafcb997e390efa4423883dafd100c975c4095d6Mark Andrews * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
dafcb997e390efa4423883dafd100c975c4095d6Mark Andrews * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
dafcb997e390efa4423883dafd100c975c4095d6Mark Andrews * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
dafcb997e390efa4423883dafd100c975c4095d6Mark Andrews * PERFORMANCE OF THIS SOFTWARE.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley */
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein/* $Id: ipv6.h,v 1.21 2005/04/27 04:57:18 sra Exp $ */
9c3531d72aeaad6c5f01efe6a1c82023e1379e4dDavid Lawrence
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#ifndef ISC_IPV6_H
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#define ISC_IPV6_H 1
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein/*!
de8e189332e884db065b921f84e3ee4922ad10e3David Lawrence * Also define LWRES_IPV6_H to keep it from being included if liblwres is
de8e189332e884db065b921f84e3ee4922ad10e3David Lawrence * being used, or redefinition errors will occur.
de8e189332e884db065b921f84e3ee4922ad10e3David Lawrence */
de8e189332e884db065b921f84e3ee4922ad10e3David Lawrence#define LWRES_IPV6_H 1
de8e189332e884db065b921f84e3ee4922ad10e3David Lawrence
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley/*****
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley ***** Module Info
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *****/
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein/*! \file isc/ipv6.h
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein * \brief IPv6 definitions for systems which do not support IPv6.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein * \li MP:
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * No impact.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein * \li Reliability:
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * No anticipated impact.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein * \li Resources:
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * N/A.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein * \li Security:
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley * No anticipated impact.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein * \li Standards:
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein * RFC2553.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley */
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley/***
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley *** Imports.
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley ***/
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#include <isc/int.h>
738922ba7bb10b206f6f54931aed068e3dcb950dDavid Lawrence#include <isc/platform.h>
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];
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
e61793f0865117ad87a19d6e245bea8f3b712d1bDanny MayerLIBISC_EXTERNAL_DATA extern const struct in6_addr in6addr_any;
e61793f0865117ad87a19d6e245bea8f3b712d1bDanny MayerLIBISC_EXTERNAL_DATA extern 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
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein/*%
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
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein/*%
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
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein/*%
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
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein/*%
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
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein/*%
d80da258e377f02f0dcd703b89a1044cc58e949fMichael Graff * Multicast
d80da258e377f02f0dcd703b89a1044cc58e949fMichael Graff */
d80da258e377f02f0dcd703b89a1044cc58e949fMichael Graff#define IN6_IS_ADDR_MULTICAST(a) \
d80da258e377f02f0dcd703b89a1044cc58e949fMichael Graff ((a)->s6_addr8[0] == 0xffU)
d80da258e377f02f0dcd703b89a1044cc58e949fMichael Graff
ab023a65562e62b85a824509d829b6fad87e00b1Rob Austein/*%
79a6a33184abff1999ba13b10922ccb34a2758a5Mark Andrews * Unicast link / site local.
79a6a33184abff1999ba13b10922ccb34a2758a5Mark Andrews */
79a6a33184abff1999ba13b10922ccb34a2758a5Mark Andrews#define IN6_IS_ADDR_LINKLOCAL(a) \
79a6a33184abff1999ba13b10922ccb34a2758a5Mark Andrews (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
79a6a33184abff1999ba13b10922ccb34a2758a5Mark Andrews#define IN6_IS_ADDR_SITELOCAL(a) \
79a6a33184abff1999ba13b10922ccb34a2758a5Mark Andrews (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
79a6a33184abff1999ba13b10922ccb34a2758a5Mark Andrews
9679032ec8ea97edcc993deb3d3dfcf54655cb52Bob Halley#endif /* ISC_IPV6_H */