LCOM1920-T02G10

/*        $NetBSD: in6.h,v 1.85 2015/08/07 08:11:33 ozaki-r Exp $        */

/*        $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei Exp $        */

/*

 * 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

 *    documentation and/or other materials provided with the distribution.

 * 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

 *    documentation and/or other materials provided with the distribution.

 * 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_

#include <sys/featuretest.h>

#ifndef __KAME_NETINET_IN_H_INCLUDED_

#error "do not include netinet6/in6.h directly, include netinet/in.h.  see RFC2553"

#endif

#include <sys/socket.h>

/*

 * Identification of the network protocol stack

 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE

 * 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

#define        IPV6PORT_RESERVEDMAX        (IPV6PORT_RESERVED-1)

#endif

/*

 * IPv6 address

 */

struct in6_addr {

        union {

                __uint8_t   __u6_addr8[16];

                __uint16_t  __u6_addr16[8];

                uint32_t  __u6_addr32[4];

        } __u6_addr;                        /* 128-bit IP6 address */

};

#define s6_addr   __u6_addr.__u6_addr8

#ifdef _KERNEL        /* XXX nonstandard */

#define s6_addr8  __u6_addr.__u6_addr8

#define s6_addr16 __u6_addr.__u6_addr16

#define s6_addr32 __u6_addr.__u6_addr32

#endif

#define INET6_ADDRSTRLEN        46

/*

 * Socket address for IPv6

 */

#if defined(_NETBSD_SOURCE)

#define SIN6_LEN

#endif

struct sockaddr_in6 {

        uint8_t                sin6_len;        /* length of this struct(socklen_t)*/

        sa_family_t        sin6_family;        /* AF_INET6 (sa_family_t) */

        in_port_t        sin6_port;        /* Transport layer port */

        uint32_t        sin6_flowinfo;        /* IP6 flow information */

        struct in6_addr        sin6_addr;        /* IP6 address */

        uint32_t        sin6_scope_id;        /* scope zone index */

};

/*

 * 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 }}}

#define IN6MASK32        {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \

                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}

#define IN6MASK64        {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \

                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}

#define IN6MASK96        {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \

                            0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}

#define IN6MASK128        {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \

                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}

#endif

#ifdef _KERNEL

extern const struct sockaddr_in6 sa6_any;

extern const struct in6_addr in6mask0;

extern const struct in6_addr in6mask32;

extern const struct in6_addr in6mask64;

extern const struct in6_addr in6mask96;

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

#elif BYTE_ORDER == LITTLE_ENDIAN

#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;

#define IN6_ARE_ADDR_EQUAL(a, b)                        \

    (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)

/*

 * Unspecified

 */

#define IN6_IS_ADDR_UNSPECIFIED(a)        \

        ((a)->__u6_addr.__u6_addr32[0] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[1] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[2] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[3] == 0)

/*

 * Loopback

 */

#define IN6_IS_ADDR_LOOPBACK(a)                \

        ((a)->__u6_addr.__u6_addr32[0] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[1] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[2] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[3] == ntohl(1))

/*

 * IPv4 compatible

 */

#define IN6_IS_ADDR_V4COMPAT(a)                \

        ((a)->__u6_addr.__u6_addr32[0] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[1] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[2] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[3] != 0 &&        \

         (a)->__u6_addr.__u6_addr32[3] != ntohl(1))

/*

 * Mapped

 */

#define IN6_IS_ADDR_V4MAPPED(a)                      \

        ((a)->__u6_addr.__u6_addr32[0] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[1] == 0 &&        \

         (a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff))

/*

 * 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_ORGLOCAL        0x08        /* just used in this file */

#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_ORGLOCAL        0x08        /* just used in this file */

#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)        \

        (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))

#define IN6_IS_ADDR_SITELOCAL(a)        \

        (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))

/*

 * Multicast

 */

#define IN6_IS_ADDR_MULTICAST(a)        ((a)->s6_addr[0] == 0xff)

#ifdef _KERNEL        /* XXX nonstandard */

#define IPV6_ADDR_MC_SCOPE(a)                ((a)->s6_addr[1] & 0x0f)

#else

#define __IPV6_ADDR_MC_SCOPE(a)                ((a)->s6_addr[1] & 0x0f)

#endif

/*

 * Multicast Scope

 */

#ifdef _KERNEL        /* refers nonstandard items */

#define IN6_IS_ADDR_MC_NODELOCAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&        \

         (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))

#define IN6_IS_ADDR_MC_INTFACELOCAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&        \

         (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))

#define IN6_IS_ADDR_MC_LINKLOCAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&        \

         (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))

#define IN6_IS_ADDR_MC_SITELOCAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&         \

         (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))

#define IN6_IS_ADDR_MC_ORGLOCAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&        \

         (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))

#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) &&        \

         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))

#define IN6_IS_ADDR_MC_LINKLOCAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&        \

         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))

#define IN6_IS_ADDR_MC_SITELOCAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&         \

         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))

#define IN6_IS_ADDR_MC_ORGLOCAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&        \

         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))

#define IN6_IS_ADDR_MC_GLOBAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&        \

         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))

#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)        \

    (IN6_IS_SCOPE_LINKLOCAL(__a) || IN6_IS_ADDR_MC_INTFACELOCAL(__a))

#define IFA6_IS_DEPRECATED(a) \

        ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \

         (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \

         (a)->ia6_lifetime.ia6t_pltime)

#define IFA6_IS_INVALID(a) \

        ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \

         (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \

         (a)->ia6_lifetime.ia6t_vltime)

#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. */

#define IPV6_OPTIONS                1  /* buf/ip6_opts; set/get IP6 options */

#define IPV6_RECVOPTS                5  /* bool; receive all IP6 opts w/dgram */

#define IPV6_RECVRETOPTS        6  /* bool; receive IP6 opts for response */

#define IPV6_RECVDSTADDR        7  /* bool; receive IP6 dst addr w/dgram */

#define IPV6_RETOPTS                8  /* ip6_opts; set/get IP6 options */

#endif

#define IPV6_SOCKOPT_RESERVED1        3  /* reserved for future use */

#define IPV6_UNICAST_HOPS        4  /* int; IP6 hops */

#define IPV6_MULTICAST_IF        9  /* u_int; set/get IP6 multicast i/f  */

#define IPV6_MULTICAST_HOPS        10 /* int; set/get IP6 multicast hops */

#define IPV6_MULTICAST_LOOP        11 /* u_int; set/get IP6 multicast loopback */

/* The join and leave membership option numbers need to match with the v4 ones */

#define IPV6_JOIN_GROUP                12 /* ip6_mreq; join a group membership */

#define IPV6_LEAVE_GROUP        13 /* ip6_mreq; leave a group membership */

#define IPV6_PORTRANGE                14 /* int; range to choose for unspec port */

#if defined(_NETBSD_SOURCE)

#define IPV6_PORTALGO                17 /* int; port selection algo (rfc6056) */

#define ICMP6_FILTER                18 /* icmp6_filter; icmp6 filter */

#endif

/* RFC2292 options */

#ifdef _KERNEL

#define IPV6_2292PKTINFO        19 /* bool; send/recv if, src/dst addr */

#define IPV6_2292HOPLIMIT        20 /* bool; hop limit */

#define IPV6_2292NEXTHOP        21 /* bool; next hop addr */

#define IPV6_2292HOPOPTS        22 /* bool; hop-by-hop option */

#define IPV6_2292DSTOPTS        23 /* bool; destination option */

#define IPV6_2292RTHDR                24 /* bool; routing header */

#define IPV6_2292PKTOPTIONS        25 /* buf/cmsghdr; set/get IPv6 options */

#endif

#define IPV6_CHECKSUM                26 /* int; checksum offset for raw socket */

#define IPV6_V6ONLY                27 /* bool; make AF_INET6 sockets v6 only */

#define IPV6_IPSEC_POLICY        28 /* struct; get/set security policy */

#define IPV6_FAITH                29 /* bool; accept FAITH'ed connections */

/* new socket options introduced in RFC3542 */

#define IPV6_RTHDRDSTOPTS       35 /* ip6_dest; send dst option before rthdr */

#define IPV6_RECVPKTINFO        36 /* bool; recv if, dst addr */

#define IPV6_RECVHOPLIMIT       37 /* bool; recv hop limit */

#define IPV6_RECVRTHDR          38 /* bool; recv routing header */

#define IPV6_RECVHOPOPTS        39 /* bool; recv hop-by-hop option */

#define IPV6_RECVDSTOPTS        40 /* bool; recv dst option after rthdr */

#ifdef _KERNEL

#define IPV6_RECVRTHDRDSTOPTS   41 /* bool; recv dst option before rthdr */

#endif

#define IPV6_USE_MIN_MTU        42 /* bool; send packets at the minimum MTU */

#define IPV6_RECVPATHMTU        43 /* bool; notify an according MTU */

#define IPV6_PATHMTU                44 /* mtuinfo; get the current path MTU (sopt),

                                      4 bytes int; MTU notification (cmsg) */

/* more new socket options introduced in RFC3542 */

#define IPV6_PKTINFO                46 /* in6_pktinfo; send if, src addr */

#define IPV6_HOPLIMIT                47 /* int; send hop limit */

#define IPV6_NEXTHOP                48 /* sockaddr; next hop addr */

#define IPV6_HOPOPTS                49 /* ip6_hbh; send hop-by-hop option */

#define IPV6_DSTOPTS                50 /* ip6_dest; send dst option befor rthdr */

#define IPV6_RTHDR                51 /* ip6_rthdr; send routing header */

#define IPV6_RECVTCLASS                57 /* bool; recv traffic class values */

#ifdef _KERNEL

#define IPV6_OTCLASS                58 /* u_int8_t; send traffic class value */

#endif

#define IPV6_TCLASS                61 /* int; send traffic class value */

#define IPV6_DONTFRAG                62 /* bool; disable IPv6 fragmentation */

#define IPV6_PREFER_TEMPADDR        63 /* int; prefer temporary address as

                                    * the sorce address */

/* 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_STRICT    1 /* this hop must be a neighbor. XXX old spec */

#define IPV6_RTHDR_TYPE_0    0 /* IPv6 routing header type 0 */

/*

 * Defaults and limits for options

 */

#define IPV6_DEFAULT_MULTICAST_HOPS 1        /* normally limit m'casts to 1 hop  */

#define IPV6_DEFAULT_MULTICAST_LOOP 1        /* normally hear sends if a member  */

/*

 * 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 {

        struct in6_addr        ipi6_addr;        /* src/dst IPv6 address */

        unsigned int        ipi6_ifindex;        /* send/recv interface index */

};

/*

 * Control structure for IPV6_RECVPATHMTU socket option.

 */

struct ip6_mtuinfo {

        struct sockaddr_in6 ip6m_addr;        /* or sockaddr_storage? */

        uint32_t ip6m_mtu;

};

/*

 * Argument for IPV6_PORTRANGE:

 * - which range to search when port is unspecified at bind() or connect()

 */

#define        IPV6_PORTRANGE_DEFAULT        0        /* default range */

#define        IPV6_PORTRANGE_HIGH        1        /* "high" - request firewall bypass */

#define        IPV6_PORTRANGE_LOW        2        /* "low" - vouchsafe security */

#if defined(_NETBSD_SOURCE)

/*

 * Definitions for inet6 sysctl operations.

 *

 * Third level is protocol number.

 * Fourth level is desired variable within that protocol.

 */

#define IPV6PROTO_MAXID        (IPPROTO_PIM + 1)        /* don't list to IPV6PROTO_MAX */

#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

 */

#define IPV6CTL_FORWARDING        1        /* act as router */

#define IPV6CTL_SENDREDIRECTS        2        /* may send redirects when forwarding*/

#define IPV6CTL_DEFHLIM                3        /* default Hop-Limit */

#ifdef notyet

#define IPV6CTL_DEFMTU                4        /* default MTU */

#endif

#define IPV6CTL_FORWSRCRT        5        /* forward source-routed dgrams */

#define IPV6CTL_STATS                6        /* stats */

#define IPV6CTL_MRTSTATS        7        /* multicast forwarding stats */

#define IPV6CTL_MRTPROTO        8        /* multicast routing protocol */

#define IPV6CTL_MAXFRAGPACKETS        9        /* max packets reassembly queue */

#define IPV6CTL_SOURCECHECK        10        /* verify source route and intf */

#define IPV6CTL_SOURCECHECK_LOGINT 11        /* minimume logging interval */

#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_GIF_HLIM        19        /* default HLIM for gif encap packet */

#define IPV6CTL_KAME_VERSION        20

#define IPV6CTL_USE_DEPRECATED        21        /* use deprecated addr (RFC2462 5.5.4) */

#define IPV6CTL_RR_PRUNE        22        /* walk timer for router renumbering */

/* 23: reserved */

#define IPV6CTL_V6ONLY                24

/* 25 to 27: reserved */

#define IPV6CTL_ANONPORTMIN        28        /* minimum ephemeral port */

#define IPV6CTL_ANONPORTMAX        29        /* maximum ephemeral port */

#define IPV6CTL_LOWPORTMIN        30        /* minimum reserved port */

#define IPV6CTL_LOWPORTMAX        31        /* maximum reserved port */

/* 32 to 34: reserved */

#define IPV6CTL_AUTO_LINKLOCAL        35        /* automatic link-local addr assign */

/* 36 to 38: reserved */

#define IPV6CTL_USE_DEFAULTZONE        39        /* use default scope zone */

/* 40: reserved */

#define IPV6CTL_MAXFRAGS        41        /* max fragments */

#define IPV6CTL_IFQ                42        /* IPv6 packet input queue */

#define IPV6CTL_RTADV_MAXROUTES 43        /* maximum number of routes */

                                        /* via router advertisement */

#define IPV6CTL_RTADV_NUMROUTES 44        /* current number of routes */

                                        /* via router advertisement */

/* 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                45

#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 }, \

        { "rtadv_maxroutes", CTLTYPE_INT }, \

        { "rtadv_numroutes", CTLTYPE_INT }, \

}

#endif /* _NETBSD_SOURCE */

#ifdef _KERNEL

struct cmsghdr;

/*

 * in6_cksum_phdr:

 *

 *        Compute significant parts of the IPv6 checksum pseudo-header

 *        for use in a delayed TCP/UDP checksum calculation.

 *

 *        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!

 */

static __inline u_int16_t __unused

in6_cksum_phdr(const struct in6_addr *src, const struct in6_addr *dst,

    u_int32_t len, u_int32_t nxt)

{

        u_int32_t sum = 0;

        const u_int16_t *w;

        /*LINTED*/

        w = (const u_int16_t *) src;

        sum += w[0];

        if (!IN6_IS_SCOPE_LINKLOCAL(src))

                sum += w[1];

        sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5];

        sum += w[6]; sum += w[7];

        /*LINTED*/

        w = (const u_int16_t *) dst;

        sum += w[0];

        if (!IN6_IS_SCOPE_LINKLOCAL(dst))

                sum += w[1];

        sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5];

        sum += w[6]; sum += w[7];

        sum += (u_int16_t)(len >> 16) + (u_int16_t)(len /*& 0xffff*/);

        sum += (u_int16_t)(nxt >> 16) + (u_int16_t)(nxt /*& 0xffff*/);

        sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/);

        if (sum > 0xffff)

                sum -= 0xffff;

        return (sum);

}

struct mbuf;

struct ifnet;

int sockaddr_in6_cmp(const struct sockaddr *, const struct sockaddr *);

struct sockaddr *sockaddr_in6_externalize(struct sockaddr *, socklen_t,

    const struct sockaddr *);

int        in6_cksum(struct mbuf *, u_int8_t, u_int32_t, u_int32_t);

void        in6_delayed_cksum(struct mbuf *);

int        in6_localaddr(const struct in6_addr *);

int        in6_addrscope(const struct in6_addr *);

struct        in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);

extern void in6_if_link_up(struct ifnet *);

extern void in6_if_link_down(struct ifnet *);

extern void in6_if_link_state_change(struct ifnet *, int);

extern void in6_if_up(struct ifnet *);

extern void in6_if_down(struct ifnet *);

#ifndef __FreeBSD__

extern int in6_src_sysctl(void *, size_t *, void *, size_t);

#endif

extern void addrsel_policy_init(void);

extern        u_char        ip6_protox[];

#define        satosin6(sa)        ((struct sockaddr_in6 *)(sa))

#define        satocsin6(sa)        ((const struct sockaddr_in6 *)(sa))

#define        sin6tosa(sin6)        ((struct sockaddr *)(sin6))

#define        sin6tocsa(sin6)        ((const struct sockaddr *)(sin6))

#define        ifatoia6(ifa)        ((struct in6_ifaddr *)(ifa))

static inline void

sockaddr_in6_init1(struct sockaddr_in6 *sin6, const struct in6_addr *addr,

    in_port_t port, uint32_t flowinfo, uint32_t scope_id)

{

        sin6->sin6_port = port;

        sin6->sin6_flowinfo = flowinfo;

        sin6->sin6_addr = *addr;

        sin6->sin6_scope_id = scope_id;

}

static inline void

sockaddr_in6_init(struct sockaddr_in6 *sin6, const struct in6_addr *addr,

    in_port_t port, uint32_t flowinfo, uint32_t scope_id)

{

        sin6->sin6_family = AF_INET6;

        sin6->sin6_len = sizeof(*sin6);

        sockaddr_in6_init1(sin6, addr, port, flowinfo, scope_id);

}

static inline struct sockaddr *

sockaddr_in6_alloc(const struct in6_addr *addr, in_port_t port,

    uint32_t flowinfo, uint32_t scope_id, int flags)

{

        struct sockaddr *sa;

        if ((sa = sockaddr_alloc(AF_INET6, sizeof(struct sockaddr_in6),

            flags)) == NULL)

                return NULL;

        sockaddr_in6_init1(satosin6(sa), addr, port, flowinfo, scope_id);

        return sa;

}

#endif /* _KERNEL */

#if defined(_NETBSD_SOURCE)

#include <machine/ansi.h>

#ifdef        _BSD_SIZE_T_

typedef        _BSD_SIZE_T_                size_t;

#define        _SIZE_T

#undef        _BSD_SIZE_T_

#endif

#include <sys/cdefs.h>

__BEGIN_DECLS

struct cmsghdr;

void        in6_sin6_2_sin(struct sockaddr_in *, struct sockaddr_in6 *);

void        in6_sin_2_v4mapsin6(const struct sockaddr_in *, struct sockaddr_in6 *);

void        in6_sin6_2_sin_in_sock(struct sockaddr *);

void        in6_sin_2_v4mapsin6_in_sock(struct sockaddr **);

#define INET6_IS_ADDR_LINKLOCAL                1

#define INET6_IS_ADDR_MC_LINKLOCAL        2

#define INET6_IS_ADDR_SITELOCAL                4

void        inet6_getscopeid(struct sockaddr_in6 *, int);

void        inet6_putscopeid(struct sockaddr_in6 *, int);

extern int inet6_option_space(int);

extern int inet6_option_init(void *, struct cmsghdr **, int);

extern int inet6_option_append(struct cmsghdr *, const uint8_t *,

        int, int);

extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);

extern int inet6_option_next(const struct cmsghdr *, uint8_t **);

extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int);

extern size_t inet6_rthdr_space(int, int);

extern struct cmsghdr *inet6_rthdr_init(void *, int);

extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *,

                unsigned int);

extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);

#if 0 /* not implemented yet */

extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *);

#endif

extern int inet6_rthdr_segments(const struct cmsghdr *);

extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);

extern int inet6_rthdr_getflags(const struct cmsghdr *, int);

extern int inet6_opt_init(void *, socklen_t);

extern int inet6_opt_append(void *, socklen_t, int, uint8_t,

                socklen_t, uint8_t, void **);

extern int inet6_opt_finish(void *, socklen_t, int);

extern int inet6_opt_set_val(void *, int, void *, socklen_t);

extern int inet6_opt_next(void *, socklen_t, int, uint8_t *,

                socklen_t *, void **);

extern int inet6_opt_find(void *, socklen_t, int, uint8_t,

                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);

__END_DECLS

#endif /* _NETBSD_SOURCE */

#if defined(_KERNEL) || defined(_TEST)

int        in6_print(char *, size_t, const struct in6_addr *);

#define IN6_PRINT(b, a) (in6_print((b), sizeof(b), (a)), (b))

int        sin6_print(char *, size_t, const void *);

#endif

#endif /* !_NETINET6_IN6_H_ */