/*	$FreeBSD: src/sys/netinet6/in6_var.h,v 1.21.2.1 2005/08/24 15:18:38 rwatson Exp $	*/

 /*	$KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $	*/

 /*-

  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.

  * All rights reserved.

 * © Portions copyright (c) 2007 Symbian Software Ltd. 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) 1985, 1986, 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.

  * 4. 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_var.h	8.1 (Berkeley) 6/10/93

  */

 #ifndef _NETINET6_IN6_VAR_H_

 #define _NETINET6_IN6_VAR_H_

 /*

  * Interface address, Internet version.  One of these structures

  * is allocated for each interface with an Internet address.

  * The ifaddr structure contains the protocol-independent part

  * of the structure and is assumed to be first.

  */

 /*

  * pltime/vltime are just for future reference (required to implements 2

  * hour rule for hosts).  they should never be modified by nd6_timeout or

  * anywhere else.

  *	userland -> kernel: accept pltime/vltime

  *	kernel -> userland: throw up everything

  *	in kernel: modify preferred/expire only

  */

 struct in6_addrlifetime {

 	time_t ia6t_expire;	/* valid lifetime expiration time */

 	time_t ia6t_preferred;	/* preferred lifetime expiration time */

 	u_int32_t ia6t_vltime;	/* valid lifetime */

 	u_int32_t ia6t_pltime;	/* prefix lifetime */

 };

 struct nd_ifinfo;

 struct scope6_id;

 struct in6_ifextra {

 	struct in6_ifstat *in6_ifstat;

 	struct icmp6_ifstat *icmp6_ifstat;

 	struct nd_ifinfo *nd_ifinfo;

 	struct scope6_id *scope6_id;

 };

 #ifndef __SYMBIAN32__

 /*

  * XXX: removing dependency on ifaddr for getaddrinfo()

  */

 struct	in6_ifaddr {

 	struct	ifaddr ia_ifa;		/* protocol-independent info */

 #define	ia_ifp		ia_ifa.ifa_ifp

 #define ia_flags	ia_ifa.ifa_flags

 	struct	sockaddr_in6 ia_addr;	/* interface address */

 	struct	sockaddr_in6 ia_net;	/* network number of interface */

 	struct	sockaddr_in6 ia_dstaddr; /* space for destination addr */

 	struct	sockaddr_in6 ia_prefixmask; /* prefix mask */

 	u_int32_t ia_plen;		/* prefix length */

 	struct	in6_ifaddr *ia_next;	/* next in6 list of IP6 addresses */

 	int	ia6_flags;

 	struct in6_addrlifetime ia6_lifetime;

 	struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */

 	/* back pointer to the ND prefix (for autoconfigured addresses only) */

 	struct nd_prefix *ia6_ndpr;

 };

 #endif //__SYMBIAN32__

 /* control structure to manage address selection policy */

 struct in6_addrpolicy {

 	struct sockaddr_in6 addr; /* prefix address */

 	struct sockaddr_in6 addrmask; /* prefix mask */

 	int preced;		/* precedence */

 	int label;		/* matching label */

 	u_quad_t use;		/* statistics */

 };

 /*

  * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).

  */

 struct in6_ifstat {

 	u_quad_t ifs6_in_receive;	/* # of total input datagram */

 	u_quad_t ifs6_in_hdrerr;	/* # of datagrams with invalid hdr */

 	u_quad_t ifs6_in_toobig;	/* # of datagrams exceeded MTU */

 	u_quad_t ifs6_in_noroute;	/* # of datagrams with no route */

 	u_quad_t ifs6_in_addrerr;	/* # of datagrams with invalid dst */

 	u_quad_t ifs6_in_protounknown;	/* # of datagrams with unknown proto */

 					/* NOTE: increment on final dst if */

 	u_quad_t ifs6_in_truncated;	/* # of truncated datagrams */

 	u_quad_t ifs6_in_discard;	/* # of discarded datagrams */

 					/* NOTE: fragment timeout is not here */

 	u_quad_t ifs6_in_deliver;	/* # of datagrams delivered to ULP */

 					/* NOTE: increment on final dst if */

 	u_quad_t ifs6_out_forward;	/* # of datagrams forwarded */

 					/* NOTE: increment on outgoing if */

 	u_quad_t ifs6_out_request;	/* # of outgoing datagrams from ULP */

 					/* NOTE: does not include forwrads */

 	u_quad_t ifs6_out_discard;	/* # of discarded datagrams */

 	u_quad_t ifs6_out_fragok;	/* # of datagrams fragmented */

 	u_quad_t ifs6_out_fragfail;	/* # of datagrams failed on fragment */

 	u_quad_t ifs6_out_fragcreat;	/* # of fragment datagrams */

 					/* NOTE: this is # after fragment */

 	u_quad_t ifs6_reass_reqd;	/* # of incoming fragmented packets */

 					/* NOTE: increment on final dst if */

 	u_quad_t ifs6_reass_ok;		/* # of reassembled packets */

 					/* NOTE: this is # after reass */

 					/* NOTE: increment on final dst if */

 	u_quad_t ifs6_reass_fail;	/* # of reass failures */

 					/* NOTE: may not be packet count */

 					/* NOTE: increment on final dst if */

 	u_quad_t ifs6_in_mcast;		/* # of inbound multicast datagrams */

 	u_quad_t ifs6_out_mcast;	/* # of outbound multicast datagrams */

 };

 /*

  * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.

  * XXX: I'm not sure if this file is the right place for this structure...

  */

 struct icmp6_ifstat {

 	/*

 	 * Input statistics

 	 */

 	/* ipv6IfIcmpInMsgs, total # of input messages */

 	u_quad_t ifs6_in_msg;

 	/* ipv6IfIcmpInErrors, # of input error messages */

 	u_quad_t ifs6_in_error;

 	/* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */

 	u_quad_t ifs6_in_dstunreach;

 	/* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */

 	u_quad_t ifs6_in_adminprohib;

 	/* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */

 	u_quad_t ifs6_in_timeexceed;

 	/* ipv6IfIcmpInParmProblems, # of input parameter problem errors */

 	u_quad_t ifs6_in_paramprob;

 	/* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */

 	u_quad_t ifs6_in_pkttoobig;

 	/* ipv6IfIcmpInEchos, # of input echo requests */

 	u_quad_t ifs6_in_echo;

 	/* ipv6IfIcmpInEchoReplies, # of input echo replies */

 	u_quad_t ifs6_in_echoreply;

 	/* ipv6IfIcmpInRouterSolicits, # of input router solicitations */

 	u_quad_t ifs6_in_routersolicit;

 	/* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */

 	u_quad_t ifs6_in_routeradvert;

 	/* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */

 	u_quad_t ifs6_in_neighborsolicit;

 	/* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */

 	u_quad_t ifs6_in_neighboradvert;

 	/* ipv6IfIcmpInRedirects, # of input redirects */

 	u_quad_t ifs6_in_redirect;

 	/* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */

 	u_quad_t ifs6_in_mldquery;

 	/* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */

 	u_quad_t ifs6_in_mldreport;

 	/* ipv6IfIcmpInGroupMembReductions, # of input MLD done */

 	u_quad_t ifs6_in_mlddone;

 	/*

 	 * Output statistics. We should solve unresolved routing problem...

 	 */

 	/* ipv6IfIcmpOutMsgs, total # of output messages */

 	u_quad_t ifs6_out_msg;

 	/* ipv6IfIcmpOutErrors, # of output error messages */

 	u_quad_t ifs6_out_error;

 	/* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */

 	u_quad_t ifs6_out_dstunreach;

 	/* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */

 	u_quad_t ifs6_out_adminprohib;

 	/* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */

 	u_quad_t ifs6_out_timeexceed;

 	/* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */

 	u_quad_t ifs6_out_paramprob;

 	/* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */

 	u_quad_t ifs6_out_pkttoobig;

 	/* ipv6IfIcmpOutEchos, # of output echo requests */

 	u_quad_t ifs6_out_echo;

 	/* ipv6IfIcmpOutEchoReplies, # of output echo replies */

 	u_quad_t ifs6_out_echoreply;

 	/* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */

 	u_quad_t ifs6_out_routersolicit;

 	/* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */

 	u_quad_t ifs6_out_routeradvert;

 	/* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */

 	u_quad_t ifs6_out_neighborsolicit;

 	/* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */

 	u_quad_t ifs6_out_neighboradvert;

 	/* ipv6IfIcmpOutRedirects, # of output redirects */

 	u_quad_t ifs6_out_redirect;

 	/* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */

 	u_quad_t ifs6_out_mldquery;

 	/* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */

 	u_quad_t ifs6_out_mldreport;

 	/* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */

 	u_quad_t ifs6_out_mlddone;

 };

 struct	in6_ifreq {

 	char	ifr_name[IFNAMSIZ];

 	union {

 		struct	sockaddr_in6 ifru_addr;

 		struct	sockaddr_in6 ifru_dstaddr;

 		int	ifru_flags;

 		int	ifru_flags6;

 		int	ifru_metric;

 		caddr_t	ifru_data;

 		struct in6_addrlifetime ifru_lifetime;

 		struct in6_ifstat ifru_stat;

 		struct icmp6_ifstat ifru_icmp6stat;

 		u_int32_t ifru_scope_id[16];

 	} ifr_ifru;

 };

 struct	in6_aliasreq {

 	char	ifra_name[IFNAMSIZ];

 	struct	sockaddr_in6 ifra_addr;

 	struct	sockaddr_in6 ifra_dstaddr;

 	struct	sockaddr_in6 ifra_prefixmask;

 	int	ifra_flags;

 	struct in6_addrlifetime ifra_lifetime;

 };

 /* prefix type macro */

 #define IN6_PREFIX_ND	1

 #define IN6_PREFIX_RR	2

 /*

  * prefix related flags passed between kernel(NDP related part) and

  * user land command(ifconfig) and daemon(rtadvd).

  */

 struct in6_prflags {

 	struct prf_ra {

 		u_char onlink : 1;

 		u_char autonomous : 1;

 		u_char reserved : 6;

 	} prf_ra;

 	u_char prf_reserved1;

 	u_short prf_reserved2;

 	/* want to put this on 4byte offset */

 	struct prf_rr {

 		u_char decrvalid : 1;

 		u_char decrprefd : 1;

 		u_char reserved : 6;

 	} prf_rr;

 	u_char prf_reserved3;

 	u_short prf_reserved4;

 };

 struct  in6_prefixreq {

 	char	ipr_name[IFNAMSIZ];

 	u_char	ipr_origin;

 	u_char	ipr_plen;

 	u_int32_t ipr_vltime;

 	u_int32_t ipr_pltime;

 	struct in6_prflags ipr_flags;

 	struct	sockaddr_in6 ipr_prefix;

 };

 #define PR_ORIG_RA	0

 #define PR_ORIG_RR	1

 #define PR_ORIG_STATIC	2

 #define PR_ORIG_KERNEL	3

 #define ipr_raf_onlink		ipr_flags.prf_ra.onlink

 #define ipr_raf_auto		ipr_flags.prf_ra.autonomous

 #define ipr_statef_onlink	ipr_flags.prf_state.onlink

 #define ipr_rrf_decrvalid	ipr_flags.prf_rr.decrvalid

 #define ipr_rrf_decrprefd	ipr_flags.prf_rr.decrprefd

 struct	in6_rrenumreq {

 	char	irr_name[IFNAMSIZ];

 	u_char	irr_origin;

 	u_char	irr_m_len;	/* match len for matchprefix */

 	u_char	irr_m_minlen;	/* minlen for matching prefix */

 	u_char	irr_m_maxlen;	/* maxlen for matching prefix */

 	u_char	irr_u_uselen;	/* uselen for adding prefix */

 	u_char	irr_u_keeplen;	/* keeplen from matching prefix */

 	struct irr_raflagmask {

 		u_char onlink : 1;

 		u_char autonomous : 1;

 		u_char reserved : 6;

 	} irr_raflagmask;

 	u_int32_t irr_vltime;

 	u_int32_t irr_pltime;

 	struct in6_prflags irr_flags;

 	struct	sockaddr_in6 irr_matchprefix;

 	struct	sockaddr_in6 irr_useprefix;

 };

 #define irr_raf_mask_onlink	irr_raflagmask.onlink

 #define irr_raf_mask_auto	irr_raflagmask.autonomous

 #define irr_raf_mask_reserved	irr_raflagmask.reserved

 #define irr_raf_onlink		irr_flags.prf_ra.onlink

 #define irr_raf_auto		irr_flags.prf_ra.autonomous

 #define irr_statef_onlink	irr_flags.prf_state.onlink

 #define irr_rrf			irr_flags.prf_rr

 #define irr_rrf_decrvalid	irr_flags.prf_rr.decrvalid

 #define irr_rrf_decrprefd	irr_flags.prf_rr.decrprefd

 /*

  * Given a pointer to an in6_ifaddr (ifaddr),

  * return a pointer to the addr as a sockaddr_in6

  */

 #define IA6_IN6(ia)	(&((ia)->ia_addr.sin6_addr))

 #define IA6_DSTIN6(ia)	(&((ia)->ia_dstaddr.sin6_addr))

 #define IA6_MASKIN6(ia)	(&((ia)->ia_prefixmask.sin6_addr))

 #define IA6_SIN6(ia)	(&((ia)->ia_addr))

 #define IA6_DSTSIN6(ia)	(&((ia)->ia_dstaddr))

 #define IFA_IN6(x)	(&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)

 #define IFA_DSTIN6(x)	(&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)

 #define IFPR_IN6(x)	(&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)

 #ifdef _KERNEL

 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m)	(	\

 	(((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \

 	(((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \

 	(((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \

 	(((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )

 #endif

 #define SIOCSIFADDR_IN6		 _IOW('i', 12, struct in6_ifreq)

 #define SIOCGIFADDR_IN6		_IOWR('i', 33, struct in6_ifreq)

 #ifdef _KERNEL

 /*

  * SIOCSxxx ioctls should be unused (see comments in in6.c), but

  * we do not shift numbers for binary compatibility.

  */

 #define SIOCSIFDSTADDR_IN6	 _IOW('i', 14, struct in6_ifreq)

 #define SIOCSIFNETMASK_IN6	 _IOW('i', 22, struct in6_ifreq)

 #endif

 #define SIOCGIFDSTADDR_IN6	_IOWR('i', 34, struct in6_ifreq)

 #define SIOCGIFNETMASK_IN6	_IOWR('i', 37, struct in6_ifreq)

 #define SIOCDIFADDR_IN6		 _IOW('i', 25, struct in6_ifreq)

 #define SIOCAIFADDR_IN6		 _IOW('i', 26, struct in6_aliasreq)

 #define SIOCSIFPHYADDR_IN6       _IOW('i', 70, struct in6_aliasreq)

 #define	SIOCGIFPSRCADDR_IN6	_IOWR('i', 71, struct in6_ifreq)

 #define	SIOCGIFPDSTADDR_IN6	_IOWR('i', 72, struct in6_ifreq)

 #define SIOCGIFAFLAG_IN6	_IOWR('i', 73, struct in6_ifreq)

 #define SIOCGDRLST_IN6		_IOWR('i', 74, struct in6_drlist)

 #ifdef _KERNEL

 /* XXX: SIOCGPRLST_IN6 is exposed in KAME but in6_oprlist is not. */

 #define SIOCGPRLST_IN6		_IOWR('i', 75, struct in6_oprlist)

 #endif

 #ifdef _KERNEL

 #define OSIOCGIFINFO_IN6	_IOWR('i', 76, struct in6_ondireq)

 #endif

 #define SIOCGIFINFO_IN6		_IOWR('i', 108, struct in6_ndireq)

 #define SIOCSNDFLUSH_IN6	_IOWR('i', 77, struct in6_ifreq)

 #define SIOCGNBRINFO_IN6	_IOWR('i', 78, struct in6_nbrinfo)

 #define SIOCSPFXFLUSH_IN6	_IOWR('i', 79, struct in6_ifreq)

 #define SIOCSRTRFLUSH_IN6	_IOWR('i', 80, struct in6_ifreq)

 #define SIOCGIFALIFETIME_IN6	_IOWR('i', 81, struct in6_ifreq)

 #define SIOCSIFALIFETIME_IN6	_IOWR('i', 82, struct in6_ifreq)

 #define SIOCGIFSTAT_IN6		_IOWR('i', 83, struct in6_ifreq)

 #define SIOCGIFSTAT_ICMP6	_IOWR('i', 84, struct in6_ifreq)

 #define SIOCSDEFIFACE_IN6	_IOWR('i', 85, struct in6_ndifreq)

 #define SIOCGDEFIFACE_IN6	_IOWR('i', 86, struct in6_ndifreq)

 #define SIOCSIFINFO_FLAGS	_IOWR('i', 87, struct in6_ndireq) /* XXX */

 #define SIOCSSCOPE6		_IOW('i', 88, struct in6_ifreq)

 #define SIOCGSCOPE6		_IOWR('i', 89, struct in6_ifreq)

 #define SIOCGSCOPE6DEF		_IOWR('i', 90, struct in6_ifreq)

 #define SIOCSIFPREFIX_IN6	_IOW('i', 100, struct in6_prefixreq) /* set */

 #define SIOCGIFPREFIX_IN6	_IOWR('i', 101, struct in6_prefixreq) /* get */

 #define SIOCDIFPREFIX_IN6	_IOW('i', 102, struct in6_prefixreq) /* del */

 #define SIOCAIFPREFIX_IN6	_IOW('i', 103, struct in6_rrenumreq) /* add */

 #define SIOCCIFPREFIX_IN6	_IOW('i', 104, \

 				     struct in6_rrenumreq) /* change */

 #define SIOCSGIFPREFIX_IN6	_IOW('i', 105, \

 				     struct in6_rrenumreq) /* set global */

 #define SIOCGETSGCNT_IN6	_IOWR('u', 106, \

 				      struct sioc_sg_req6) /* get s,g pkt cnt */

 #define SIOCGETMIFCNT_IN6	_IOWR('u', 107, \

 				      struct sioc_mif_req6) /* get pkt cnt per if */

 #define SIOCAADDRCTL_POLICY	_IOW('u', 108, struct in6_addrpolicy)

 #define SIOCDADDRCTL_POLICY	_IOW('u', 109, struct in6_addrpolicy)

 #define IN6_IFF_ANYCAST		0x01	/* anycast address */

 #define IN6_IFF_TENTATIVE	0x02	/* tentative address */

 #define IN6_IFF_DUPLICATED	0x04	/* DAD detected duplicate */

 #define IN6_IFF_DETACHED	0x08	/* may be detached from the link */

 #define IN6_IFF_DEPRECATED	0x10	/* deprecated address */

 #define IN6_IFF_NODAD		0x20	/* don't perform DAD on this address

 					 * (used only at first SIOC* call)

 					 */

 #define IN6_IFF_AUTOCONF	0x40	/* autoconfigurable address. */

 #define IN6_IFF_TEMPORARY	0x80	/* temporary (anonymous) address. */

 #define IN6_IFF_NOPFX		0x8000	/* skip kernel prefix management.

 					 * XXX: this should be temporary.

 					 */

 /* do not input/output */

 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)

 #ifdef _KERNEL

 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))

 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))

 #endif

 #ifdef _KERNEL

 extern struct in6_ifaddr *in6_ifaddr;

 extern struct icmp6stat icmp6stat;

 #define in6_ifstat_inc(ifp, tag) \

 do {								\

 	if (ifp)						\

 		((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \

 } while (/*CONSTCOND*/ 0)

 extern struct in6_addr zeroin6_addr;

 extern u_char inet6ctlerrmap[];

 extern unsigned long in6_maxmtu;

 #ifdef MALLOC_DECLARE

 MALLOC_DECLARE(M_IPMADDR);

 #endif /* MALLOC_DECLARE */

 /*

  * Macro for finding the internet address structure (in6_ifaddr) corresponding

  * to a given interface (ifnet structure).

  */

 #define IFP_TO_IA6(ifp, ia)				\

 /* struct ifnet *ifp; */				\

 /* struct in6_ifaddr *ia; */				\

 do {									\

 	struct ifaddr *ifa;						\

 	for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) {	\

 		if (!ifa->ifa_addr)					\

 			continue;					\

 		if (ifa->ifa_addr->sa_family == AF_INET6)		\

 			break;						\

 	}								\

 	(ia) = (struct in6_ifaddr *)ifa;				\

 } while (/*CONSTCOND*/ 0)

 #endif /* _KERNEL */

 /*

  * Multi-cast membership entry.  One for each group/ifp that a PCB

  * belongs to.

  */

 struct in6_multi_mship {

 	struct	in6_multi *i6mm_maddr;	/* Multicast address pointer */

 	LIST_ENTRY(in6_multi_mship) i6mm_chain;  /* multicast options chain */

 };

 struct	in6_multi {

 	LIST_ENTRY(in6_multi) in6m_entry; /* list glue */

 	struct	in6_addr in6m_addr;	/* IP6 multicast address */

 	struct	ifnet *in6m_ifp;	/* back pointer to ifnet */

 	struct	ifmultiaddr *in6m_ifma;	/* back pointer to ifmultiaddr */

 	u_int	in6m_refcount;		/* # membership claims by sockets */

 	u_int	in6m_state;		/* state of the membership */

 	u_int	in6m_timer;		/* MLD6 listener report timer */

 };

 #ifdef _KERNEL

 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;

 /*

  * Structure used by macros below to remember position when stepping through

  * all of the in6_multi records.

  */

 struct	in6_multistep {

 	struct	in6_ifaddr *i_ia;

 	struct	in6_multi *i_in6m;

 };

 /*

  * Macros for looking up the in6_multi record for a given IP6 multicast

  * address on a given interface. If no matching record is found, "in6m"

  * returns NLL.

  */

 #define IN6_LOOKUP_MULTI(addr, ifp, in6m)			\

 /* struct in6_addr addr; */					\

 /* struct ifnet *ifp; */					\

 /* struct in6_multi *in6m; */					\

 do { \

 	struct ifmultiaddr *ifma; \

 	IF_ADDR_LOCK(ifp); \

 	TAILQ_FOREACH(ifma, &(ifp)->if_multiaddrs, ifma_link) { \

 		if (ifma->ifma_addr->sa_family == AF_INET6 \

 		    && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \

 					  &(addr))) \

 			break; \

 	} \

 	(in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \

 	IF_ADDR_UNLOCK(ifp); \

 } while(0)

 /*

  * Macro to step through all of the in6_multi records, one at a time.

  * The current position is remembered in "step", which the caller must

  * provide.  IN6_FIRST_MULTI(), below, must be called to initialize "step"

  * and get the first record.  Both macros return a NULL "in6m" when there

  * are no remaining records.

  */

 #define IN6_NEXT_MULTI(step, in6m)					\

 /* struct in6_multistep step; */					\

 /* struct in6_multi *in6m; */						\

 do { \

 	if (((in6m) = (step).i_in6m) != NULL) \

 		(step).i_in6m = (step).i_in6m->in6m_entry.le_next; \

 } while(0)

 #define IN6_FIRST_MULTI(step, in6m)		\

 /* struct in6_multistep step; */		\

 /* struct in6_multi *in6m */			\

 do { \

 	(step).i_in6m = in6_multihead.lh_first; \

 		IN6_NEXT_MULTI((step), (in6m)); \

 } while(0)

 struct	in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *,

 	int *));

 void	in6_delmulti __P((struct in6_multi *));

 struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *);

 int	in6_leavegroup(struct in6_multi_mship *);

 int	in6_mask2len __P((struct in6_addr *, u_char *));

 int	in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *,

 	struct thread *));

 int	in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *,

 	struct in6_ifaddr *));

 void	in6_purgeaddr __P((struct ifaddr *));

 int	in6if_do_dad __P((struct ifnet *));

 void	in6_purgeif __P((struct ifnet *));

 void	in6_savemkludge __P((struct in6_ifaddr *));

 void	*in6_domifattach __P((struct ifnet *));

 void	in6_domifdetach __P((struct ifnet *, void *));

 void	in6_setmaxmtu   __P((void));

 void	in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *));

 void	in6_purgemkludge __P((struct ifnet *));

 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int));

 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *));

 char	*ip6_sprintf __P((const struct in6_addr *));

 int	in6_addr2zoneid __P((struct ifnet *, struct in6_addr *, u_int32_t *));

 int	in6_matchlen __P((struct in6_addr *, struct in6_addr *));

 int	in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int));

 void	in6_prefixlen2mask __P((struct in6_addr *, int));

 int	in6_prefix_ioctl __P((struct socket *, u_long, caddr_t,

 	struct ifnet *));

 int	in6_prefix_add_ifid __P((int, struct in6_ifaddr *));

 void	in6_prefix_remove_ifid __P((int, struct in6_ifaddr *));

 void	in6_purgeprefix __P((struct ifnet *));

 void	in6_ifremloop(struct ifaddr *);

 void	in6_ifaddloop(struct ifaddr *);

 int	in6_is_addr_deprecated __P((struct sockaddr_in6 *));

 struct inpcb;

 int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *,

 	struct inpcb *, struct ifnet **));

 int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *,

 	struct ifnet *));

 void in6_clearscope __P((struct in6_addr *));

 int in6_src_ioctl __P((u_long, caddr_t));

 #endif /* _KERNEL */

 #endif /* _NETINET6_IN6_VAR_H_ */