1135446Strhodes/* 2193149Sdougb * Copyright (C) 2004-2007 Internet Systems Consortium, Inc. ("ISC") 3135446Strhodes * Copyright (C) 2000, 2001 Internet Software Consortium. 4135446Strhodes * 5193149Sdougb * Permission to use, copy, modify, and/or distribute this software for any 6135446Strhodes * purpose with or without fee is hereby granted, provided that the above 7135446Strhodes * copyright notice and this permission notice appear in all copies. 8135446Strhodes * 9135446Strhodes * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10135446Strhodes * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11135446Strhodes * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12135446Strhodes * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13135446Strhodes * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14135446Strhodes * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15135446Strhodes * PERFORMANCE OF THIS SOFTWARE. 16135446Strhodes */ 17135446Strhodes 18234010Sdougb/* $Id: ipv6.h,v 1.16 2007/06/19 23:47:23 tbox Exp $ */ 19135446Strhodes 20135446Strhodes#ifndef LWRES_IPV6_H 21135446Strhodes#define LWRES_IPV6_H 1 22135446Strhodes 23135446Strhodes/***** 24135446Strhodes ***** Module Info 25135446Strhodes *****/ 26135446Strhodes 27193149Sdougb/*! \file lwres/ipv6.h 28135446Strhodes * IPv6 definitions for systems which do not support IPv6. 29135446Strhodes */ 30135446Strhodes 31135446Strhodes/*** 32135446Strhodes *** Imports. 33135446Strhodes ***/ 34135446Strhodes 35135446Strhodes#include <lwres/int.h> 36135446Strhodes#include <lwres/platform.h> 37135446Strhodes 38135446Strhodes/*** 39135446Strhodes *** Types. 40135446Strhodes ***/ 41135446Strhodes 42170222Sdougb/*% in6_addr structure */ 43135446Strhodesstruct in6_addr { 44135446Strhodes union { 45135446Strhodes lwres_uint8_t _S6_u8[16]; 46135446Strhodes lwres_uint16_t _S6_u16[8]; 47135446Strhodes lwres_uint32_t _S6_u32[4]; 48135446Strhodes } _S6_un; 49135446Strhodes}; 50170222Sdougb/*@{*/ 51170222Sdougb/*% IP v6 types */ 52135446Strhodes#define s6_addr _S6_un._S6_u8 53135446Strhodes#define s6_addr8 _S6_un._S6_u8 54135446Strhodes#define s6_addr16 _S6_un._S6_u16 55135446Strhodes#define s6_addr32 _S6_un._S6_u32 56170222Sdougb/*@}*/ 57135446Strhodes 58135446Strhodes#define IN6ADDR_ANY_INIT {{{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}} 59135446Strhodes#define IN6ADDR_LOOPBACK_INIT {{{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }}} 60135446Strhodes 61135446StrhodesLIBLWRES_EXTERNAL_DATA extern const struct in6_addr in6addr_any; 62135446StrhodesLIBLWRES_EXTERNAL_DATA extern const struct in6_addr in6addr_loopback; 63135446Strhodes 64170222Sdougb/*% used in getaddrinfo.c and getnameinfo.c */ 65135446Strhodesstruct sockaddr_in6 { 66135446Strhodes#ifdef LWRES_PLATFORM_HAVESALEN 67135446Strhodes lwres_uint8_t sin6_len; 68135446Strhodes lwres_uint8_t sin6_family; 69135446Strhodes#else 70135446Strhodes lwres_uint16_t sin6_family; 71135446Strhodes#endif 72135446Strhodes lwres_uint16_t sin6_port; 73135446Strhodes lwres_uint32_t sin6_flowinfo; 74135446Strhodes struct in6_addr sin6_addr; 75135446Strhodes lwres_uint32_t sin6_scope_id; 76135446Strhodes}; 77135446Strhodes 78135446Strhodes#ifdef LWRES_PLATFORM_HAVESALEN 79135446Strhodes#define SIN6_LEN 1 80135446Strhodes#endif 81135446Strhodes 82170222Sdougb/*% in6_pktinfo structure */ 83135446Strhodesstruct in6_pktinfo { 84170222Sdougb struct in6_addr ipi6_addr; /*%< src/dst IPv6 address */ 85170222Sdougb unsigned int ipi6_ifindex; /*%< send/recv interface index */ 86135446Strhodes}; 87135446Strhodes 88170222Sdougb/*! 89170222Sdougb * Unspecified IPv6 address 90135446Strhodes */ 91135446Strhodes#define IN6_IS_ADDR_UNSPECIFIED(a) \ 92135446Strhodes (((a)->s6_addr32[0] == 0) && \ 93135446Strhodes ((a)->s6_addr32[1] == 0) && \ 94135446Strhodes ((a)->s6_addr32[2] == 0) && \ 95135446Strhodes ((a)->s6_addr32[3] == 0)) 96135446Strhodes 97135446Strhodes/* 98135446Strhodes * Loopback 99135446Strhodes */ 100135446Strhodes#define IN6_IS_ADDR_LOOPBACK(a) \ 101135446Strhodes (((a)->s6_addr32[0] == 0) && \ 102135446Strhodes ((a)->s6_addr32[1] == 0) && \ 103135446Strhodes ((a)->s6_addr32[2] == 0) && \ 104135446Strhodes ((a)->s6_addr32[3] == htonl(1))) 105135446Strhodes 106135446Strhodes/* 107135446Strhodes * IPv4 compatible 108135446Strhodes */ 109135446Strhodes#define IN6_IS_ADDR_V4COMPAT(a) \ 110135446Strhodes (((a)->s6_addr32[0] == 0) && \ 111135446Strhodes ((a)->s6_addr32[1] == 0) && \ 112135446Strhodes ((a)->s6_addr32[2] == 0) && \ 113135446Strhodes ((a)->s6_addr32[3] != 0) && \ 114135446Strhodes ((a)->s6_addr32[3] != htonl(1))) 115135446Strhodes 116135446Strhodes/* 117135446Strhodes * Mapped 118135446Strhodes */ 119135446Strhodes#define IN6_IS_ADDR_V4MAPPED(a) \ 120135446Strhodes (((a)->s6_addr32[0] == 0) && \ 121135446Strhodes ((a)->s6_addr32[1] == 0) && \ 122135446Strhodes ((a)->s6_addr32[2] == htonl(0x0000ffff))) 123135446Strhodes 124135446Strhodes#endif /* LWRES_IPV6_H */ 125