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Diffstat (limited to 'lib/lwres/include/lwres/ipv6.h')
| -rw-r--r-- | lib/lwres/include/lwres/ipv6.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/lib/lwres/include/lwres/ipv6.h b/lib/lwres/include/lwres/ipv6.h new file mode 100644 index 0000000..5d54b29 --- /dev/null +++ b/lib/lwres/include/lwres/ipv6.h @@ -0,0 +1,124 @@ +/* + * Copyright (C) 2004-2007 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 2000, 2001 Internet Software Consortium. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, + * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +/* $Id: ipv6.h,v 1.16 2007/06/19 23:47:23 tbox Exp $ */ + +#ifndef LWRES_IPV6_H +#define LWRES_IPV6_H 1 + +/***** + ***** Module Info + *****/ + +/*! \file lwres/ipv6.h + * IPv6 definitions for systems which do not support IPv6. + */ + +/*** + *** Imports. + ***/ + +#include <lwres/int.h> +#include <lwres/platform.h> + +/*** + *** Types. + ***/ + +/*% in6_addr structure */ +struct in6_addr { + union { + lwres_uint8_t _S6_u8[16]; + lwres_uint16_t _S6_u16[8]; + lwres_uint32_t _S6_u32[4]; + } _S6_un; +}; +/*@{*/ +/*% IP v6 types */ +#define s6_addr _S6_un._S6_u8 +#define s6_addr8 _S6_un._S6_u8 +#define s6_addr16 _S6_un._S6_u16 +#define s6_addr32 _S6_un._S6_u32 +/*@}*/ + +#define IN6ADDR_ANY_INIT {{{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}} +#define IN6ADDR_LOOPBACK_INIT {{{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }}} + +LIBLWRES_EXTERNAL_DATA extern const struct in6_addr in6addr_any; +LIBLWRES_EXTERNAL_DATA extern const struct in6_addr in6addr_loopback; + +/*% used in getaddrinfo.c and getnameinfo.c */ +struct sockaddr_in6 { +#ifdef LWRES_PLATFORM_HAVESALEN + lwres_uint8_t sin6_len; + lwres_uint8_t sin6_family; +#else + lwres_uint16_t sin6_family; +#endif + lwres_uint16_t sin6_port; + lwres_uint32_t sin6_flowinfo; + struct in6_addr sin6_addr; + lwres_uint32_t sin6_scope_id; +}; + +#ifdef LWRES_PLATFORM_HAVESALEN +#define SIN6_LEN 1 +#endif + +/*% in6_pktinfo structure */ +struct in6_pktinfo { + struct in6_addr ipi6_addr; /*%< src/dst IPv6 address */ + unsigned int ipi6_ifindex; /*%< send/recv interface index */ +}; + +/*! + * Unspecified IPv6 address + */ +#define IN6_IS_ADDR_UNSPECIFIED(a) \ + (((a)->s6_addr32[0] == 0) && \ + ((a)->s6_addr32[1] == 0) && \ + ((a)->s6_addr32[2] == 0) && \ + ((a)->s6_addr32[3] == 0)) + +/* + * Loopback + */ +#define IN6_IS_ADDR_LOOPBACK(a) \ + (((a)->s6_addr32[0] == 0) && \ + ((a)->s6_addr32[1] == 0) && \ + ((a)->s6_addr32[2] == 0) && \ + ((a)->s6_addr32[3] == htonl(1))) + +/* + * IPv4 compatible + */ +#define IN6_IS_ADDR_V4COMPAT(a) \ + (((a)->s6_addr32[0] == 0) && \ + ((a)->s6_addr32[1] == 0) && \ + ((a)->s6_addr32[2] == 0) && \ + ((a)->s6_addr32[3] != 0) && \ + ((a)->s6_addr32[3] != htonl(1))) + +/* + * Mapped + */ +#define IN6_IS_ADDR_V4MAPPED(a) \ + (((a)->s6_addr32[0] == 0) && \ + ((a)->s6_addr32[1] == 0) && \ + ((a)->s6_addr32[2] == htonl(0x0000ffff))) + +#endif /* LWRES_IPV6_H */ |