in6.h revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
/* $NetBSD: in6.h,v 1.57 2006/10/31 00:29:30 cbiere Exp $ */
/* $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei Exp $ */
/*
Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
*/
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)in.h 8.3 (Berkeley) 1/3/94
*/
#ifndef _NETINET6_IN6_H_
#define _NETINET6_IN6_H_
#ifndef __KAME_NETINET_IN_H_INCLUDED_
#endif
/*
* Identification of the network protocol stack
* has the table of implementation/integration differences.
*/
#define __KAME__
#define __KAME_VERSION "NetBSD-current"
/*
* Local port number conventions:
*
* Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
* unless a kernel is compiled with IPNOPRIVPORTS defined.
*
* When a user does a bind(2) or connect(2) with a port number of zero,
* a non-conflicting local port address is chosen.
*
* The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
* that is settable by sysctl(3); net.inet.ip.anonportmin and
* net.inet.ip.anonportmax respectively.
*
* A user may set the IPPROTO_IP option IP_PORTRANGE to change this
* default assignment range.
*
* The value IP_PORTRANGE_DEFAULT causes the default behavior.
*
* The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
* and exists only for FreeBSD compatibility purposes.
*
* The value IP_PORTRANGE_LOW changes the range to the "low" are
* that is (by convention) restricted to privileged processes.
* This convention is based on "vouchsafe" principles only.
* It is only secure if you trust the remote host to restrict these ports.
* The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
*/
#if defined(_NETBSD_SOURCE)
#define IPV6PORT_RESERVED 1024
#define IPV6PORT_ANONMIN 49152
#define IPV6PORT_ANONMAX 65535
#define IPV6PORT_RESERVEDMIN 600
#endif
/*
* IPv6 address
*/
struct in6_addr {
union {
} __u6_addr; /* 128-bit IP6 address */
};
#ifdef _KERNEL /* XXX nonstandard */
#endif
#define INET6_ADDRSTRLEN 46
/*
* Socket address for IPv6
*/
#if defined(_NETBSD_SOURCE)
#define SIN6_LEN
#endif
struct sockaddr_in6 {
};
/*
* Local definition for masks
*/
#ifdef _KERNEL /* XXX nonstandard */
#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
#endif
#ifdef _KERNEL
extern const struct sockaddr_in6 sa6_any;
extern const struct in6_addr in6mask128;
#endif /* _KERNEL */
/*
* Macros started with IPV6_ADDR is KAME local
*/
#ifdef _KERNEL /* XXX nonstandard */
#if BYTE_ORDER == BIG_ENDIAN
#define IPV6_ADDR_INT32_ONE 1
#define IPV6_ADDR_INT32_TWO 2
#define IPV6_ADDR_INT32_MNL 0xff010000
#define IPV6_ADDR_INT32_MLL 0xff020000
#define IPV6_ADDR_INT32_SMP 0x0000ffff
#define IPV6_ADDR_INT16_ULL 0xfe80
#define IPV6_ADDR_INT16_USL 0xfec0
#define IPV6_ADDR_INT16_MLL 0xff02
#define IPV6_ADDR_INT32_ONE 0x01000000
#define IPV6_ADDR_INT32_TWO 0x02000000
#define IPV6_ADDR_INT32_MNL 0x000001ff
#define IPV6_ADDR_INT32_MLL 0x000002ff
#define IPV6_ADDR_INT32_SMP 0xffff0000
#define IPV6_ADDR_INT16_ULL 0x80fe
#define IPV6_ADDR_INT16_USL 0xc0fe
#define IPV6_ADDR_INT16_MLL 0x02ff
#endif
#endif
/*
* Definition of some useful macros to handle IP6 addresses
*/
#define IN6ADDR_ANY_INIT \
{{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
#define IN6ADDR_LOOPBACK_INIT \
{{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
{{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
{{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
{{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
extern const struct in6_addr in6addr_any;
extern const struct in6_addr in6addr_loopback;
extern const struct in6_addr in6addr_nodelocal_allnodes;
extern const struct in6_addr in6addr_linklocal_allnodes;
extern const struct in6_addr in6addr_linklocal_allrouters;
/*
* Equality
* does not supply memcmp(). For userland memcmp() is preferred as it is
* in ANSI standard.
*/
#ifdef _KERNEL
#define IN6_ARE_ADDR_EQUAL(a, b) \
#else
#define IN6_ARE_ADDR_EQUAL(a, b) \
#endif
/*
* Unspecified
*/
#define IN6_IS_ADDR_UNSPECIFIED(a) \
/*
* Loopback
*/
#define IN6_IS_ADDR_LOOPBACK(a) \
/*
* IPv4 compatible
*/
#define IN6_IS_ADDR_V4COMPAT(a) \
/*
* Mapped
*/
#define IN6_IS_ADDR_V4MAPPED(a) \
/*
* KAME Scope Values
*/
#ifdef _KERNEL /* XXX nonstandard */
#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
#else
#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
#endif
/*
* Unicast Scope
* Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
*/
#define IN6_IS_ADDR_LINKLOCAL(a) \
#define IN6_IS_ADDR_SITELOCAL(a) \
/*
* Multicast
*/
#ifdef _KERNEL /* XXX nonstandard */
#else
#endif
/*
* Multicast Scope
*/
#ifdef _KERNEL /* refers nonstandard items */
#define IN6_IS_ADDR_MC_NODELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
#define IN6_IS_ADDR_MC_SITELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
#define IN6_IS_ADDR_MC_GLOBAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
#else
#define IN6_IS_ADDR_MC_NODELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
#define IN6_IS_ADDR_MC_SITELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
#define IN6_IS_ADDR_MC_GLOBAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
#endif
#ifdef _KERNEL /* nonstandard */
/*
* KAME Scope
*/
#define IN6_IS_SCOPE_LINKLOCAL(a) \
((IN6_IS_ADDR_LINKLOCAL(a)) || \
(IN6_IS_ADDR_MC_LINKLOCAL(a)))
#define IN6_IS_SCOPE_EMBEDDABLE(__a) \
#define IFA6_IS_DEPRECATED(a) \
(a)->ia6_lifetime.ia6t_pltime)
#define IFA6_IS_INVALID(a) \
(a)->ia6_lifetime.ia6t_vltime)
#endif
/*
* IP6 route structure
*/
#if defined(_NETBSD_SOURCE)
struct route_in6 {
struct sockaddr_in6 ro_dst;
};
#endif
/*
* Options for use with [gs]etsockopt at the IPV6 level.
* First word of comment is data type; bool is stored in int.
*/
/* no hdrincl */
#if 0
/* These are deprecated non-standard options which are no longer supported. */
#endif
#if defined(_NETBSD_SOURCE)
#endif
/* RFC2292 options */
#ifdef _KERNEL
#endif
#if 1 /* IPSEC */
#endif
/* new socket options introduced in RFC3542 */
#ifdef _KERNEL
#endif
4 bytes int; MTU notification (cmsg) */
/* more new socket options introduced in RFC3542 */
#ifdef _KERNEL
#endif
/* to define items, should talk with KAME guys first, for *BSD compatibility */
#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
/*
* Defaults and limits for options
*/
/*
* Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
*/
struct ipv6_mreq {
struct in6_addr ipv6mr_multiaddr;
unsigned int ipv6mr_interface;
};
/*
* IPV6_PKTINFO: Packet information(RFC2292 sec 5)
*/
struct in6_pktinfo {
unsigned int ipi6_ifindex; /* send/recv interface index */
};
/*
* Control structure for IPV6_RECVPATHMTU socket option.
*/
struct ip6_mtuinfo {
};
/*
* Argument for IPV6_PORTRANGE:
* - which range to search when port is unspecified at bind() or connect()
*/
#define IPV6_PORTRANGE_DEFAULT 0 /* default range */
#if defined(_NETBSD_SOURCE)
/*
* Definitions for inet6 sysctl operations.
*
* Third level is protocol number.
* Fourth level is desired variable within that protocol.
*/
#define CTL_IPV6PROTO_NAMES { \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, \
{ "tcp6", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "udp6", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, \
{ "ip6", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, \
{ "ipsec6", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "icmp6", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "pim6", CTLTYPE_NODE }, \
}
/*
* Names for IP sysctl objects
*/
#ifdef notyet
#endif
#define IPV6CTL_ACCEPT_RTADV 12
#define IPV6CTL_KEEPFAITH 13
#define IPV6CTL_LOG_INTERVAL 14
#define IPV6CTL_HDRNESTLIMIT 15
#define IPV6CTL_DAD_COUNT 16
#define IPV6CTL_AUTO_FLOWLABEL 17
#define IPV6CTL_DEFMCASTHLIM 18
#define IPV6CTL_KAME_VERSION 20
/* 23: reserved */
#define IPV6CTL_V6ONLY 24
/* 25 to 27: reserved */
/* 32 to 38: reserved */
/* 40: reserved */
/* New entries should be added here from current IPV6CTL_MAXID value. */
/* to define items, should talk with KAME guys first, for *BSD compatibility */
#define IPV6CTL_MAXID 43
#define IPV6CTL_NAMES { \
{ 0, 0 }, \
{ "forwarding", CTLTYPE_INT }, \
{ "redirect", CTLTYPE_INT }, \
{ "hlim", CTLTYPE_INT }, \
{ "mtu", CTLTYPE_INT }, \
{ "forwsrcrt", CTLTYPE_INT }, \
{ "stats", CTLTYPE_STRUCT }, \
{ 0, 0 }, \
{ "mrtproto", CTLTYPE_INT }, \
{ "maxfragpackets", CTLTYPE_INT }, \
{ "sourcecheck", CTLTYPE_INT }, \
{ "sourcecheck_logint", CTLTYPE_INT }, \
{ "accept_rtadv", CTLTYPE_INT }, \
{ "keepfaith", CTLTYPE_INT }, \
{ "log_interval", CTLTYPE_INT }, \
{ "hdrnestlimit", CTLTYPE_INT }, \
{ "dad_count", CTLTYPE_INT }, \
{ "auto_flowlabel", CTLTYPE_INT }, \
{ "defmcasthlim", CTLTYPE_INT }, \
{ "gifhlim", CTLTYPE_INT }, \
{ "kame_version", CTLTYPE_STRING }, \
{ "use_deprecated", CTLTYPE_INT }, \
{ "rr_prune", CTLTYPE_INT }, \
{ 0, 0 }, \
{ "v6only", CTLTYPE_INT }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "anonportmin", CTLTYPE_INT }, \
{ "anonportmax", CTLTYPE_INT }, \
{ "lowportmin", CTLTYPE_INT }, \
{ "lowportmax", CTLTYPE_INT }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "maxfrags", CTLTYPE_INT }, \
{ "ifq", CTLTYPE_NODE }, \
}
#endif /* _NETBSD_SOURCE */
#ifdef _KERNEL
struct cmsghdr;
/*
* in6_cksum_phdr:
*
* Compute significant parts of the IPv6 checksum pseudo-header
*
* Args:
*
* src Source IPv6 address
* dst Destination IPv6 address
* len htonl(proto-hdr-len)
* nxt htonl(next-proto-number)
*
* NOTE: We expect the src and dst addresses to be 16-bit
* aligned!
*/
{
const u_int16_t *w;
/*LINTED*/
sum += w[0];
if (!IN6_IS_SCOPE_LINKLOCAL(src))
sum += w[1];
/*LINTED*/
sum += w[0];
if (!IN6_IS_SCOPE_LINKLOCAL(dst))
sum += w[1];
if (sum > 0xffff)
sum -= 0xffff;
return (sum);
}
struct mbuf;
struct ifnet;
#ifndef __FreeBSD__
#endif
extern void addrsel_policy_init __P((void));
extern u_char ip6_protox[];
#endif /* _KERNEL */
#if defined(_NETBSD_SOURCE)
#ifdef _EFI_SIZE_T_
typedef _EFI_SIZE_T_ size_t;
#define _SIZE_T
#endif
#include <sys/EfiCdefs.h>
struct cmsghdr;
extern int inet6_option_space (int);
extern int inet6_option_init (void *, struct cmsghdr **, int);
int, int);
extern size_t inet6_rthdr_space (int, int);
extern struct cmsghdr *inet6_rthdr_init (void *, int);
unsigned int);
extern int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int);
#if 0 /* not implemented yet */
#endif
extern int inet6_rthdr_segments (const struct cmsghdr *);
extern int inet6_rthdr_getflags (const struct cmsghdr *, int);
extern int inet6_opt_init (void *, socklen_t);
extern int inet6_opt_finish (void *, socklen_t, int);
extern int inet6_opt_set_val (void *, int, void *, socklen_t);
socklen_t *, void **);
socklen_t *, void **);
extern int inet6_opt_get_val (void *, int, void *, socklen_t);
extern socklen_t inet6_rth_space (int, int);
extern void *inet6_rth_init (void *, socklen_t, int, int);
extern int inet6_rth_add (void *, const struct in6_addr *);
extern int inet6_rth_reverse (const void *, void *);
extern int inet6_rth_segments (const void *);
extern struct in6_addr *inet6_rth_getaddr (const void *, int);
#endif /* _NETBSD_SOURCE */
#endif /* !_NETINET6_IN6_H_ */