/* IBM_PROLOG_BEGIN_TAG                                                   */
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/* bos720 src/bos/kernext/inet/if_ndp6.h 1.12                             */
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/* COPYRIGHT International Business Machines Corp. 1997,2009              */
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/* IBM_PROLOG_END_TAG                                                     */
/* @(#)70	1.11  src/bos/kernext/inet/if_ndp6.h, sysxinet_ipv6, bos61J 2/17/09 16:36:15 */
/*
 * Copyright (c) 1982, 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:
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 *    notice, this list of conditions and the following disclaimer.
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 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 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
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 * SUCH DAMAGE.
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#ifndef _NETINET_IF_NDP6_H_
#define _NETINET_IF_NDP6_H_

/*
 * Definitions for if_ndtype
 */

#define IFND6_TYPE	0xff000000	/* type of the interface */
#define IFND6_FLAGS	0x00ff0000	/* flags */
#define IFND6_LLOFF	0x0000ff00	/* link-local address offset */
#define IFND6_L2OFF	0x000000ff	/* link-layer address offset */

#define IFND6_UNKNOWN	0x00000000	/* unknown ND type */
#define IFND6_LOOP	0x01000000	/* loopback */
#define IFND6_IEEE	0x02000000	/* IEEE LAN */
#define IFND6_SIT	0x03000000	/* SIT IPv6 over IPv4 */
#define IFND6_TUG	0x04000000	/* TUG IPv6 over IPv6 */
#define IFND6_TUN	0x05000000	/* TUN interface/device */
#define IFND6_PPP	0x06000000	/* PPP serial */
#define IFND6_ATM	0x07000000	/* ATM */
#define	IFND6_VIPA	0x08000000	/* Virtual Interface */
#define IFND6_LLINK	0xff000000	/* link-local pseudo interface */
#define IFND6_IB	0x09000000	/* IP over InfiniBand interface */ 

#define IFND6_IS_LLINK(ifp) \
	(((ifp)->if_ndtype & IFND6_TYPE) == IFND6_LLINK)

#define IFND6_INLL      0x00010000      /* participate to llink */
#define IFND6_ADDRES    0x00020000      /* link layer has physical addrs */
#define IFND6_MTU	0x00040000	/* fancy MTU values */

#define IFND6_LLSET	0x00100000	/* link-local address is set */

#define IPV6_UNDEF_HOPLIMIT 0   /* value of hope limit that is taken to mean undefined or no change*/

#define GETLLADDR(ifp) \
	(struct in6_addr *)((char *)(ifp) + sizeof(struct ifnet) + \
			    (((ifp)->if_ndtype >> 8) & 0xff))

#define GETL2ADDR(ifp) \
	((char *)(ifp) + sizeof(struct ifnet) + ((ifp)->if_ndtype & 0xff))

/* 2bytes for the type and len and 6bytes for the actual nonce */
#define AIX_NONCE	8
typedef struct send_llinfo {
        boolean_t secured;              /* Where the last update to the table
                                         * was secured or unsecured          */
        time_t	RDlast;      		/* Timestamp of last accepted SEND   */
        time_t	TSlast;      		/* Timstamp in last accepted SEND    */
        uint8_t  nonce[AIX_NONCE];	/* Nonce value always a fixes size   */
} send_llinfo_t;

#ifdef _KERNEL
/*
 * IPv6 Neighbor Discovery Protocol.
 *
 * See RFC xxxx for protocol description.
 */

extern long ndpqsize;

struct llinfo_ndp6 {
	struct	rtentry *ln_rt;
	struct	mbuf *ln_hold;		/* last packet until resolved/timeout */
	long	ln_asked;		/* last time we QUERIED for this addr */
	short	ln_state;		/* state */
	short	ln_flags;		/* flags (is_router) */
	struct	mbuf *ln_hold_last;     /* last packet on ln_hold queue */
	int	ln_hold_count;		/* # of mbufs on ln_hold_queue */
	tid_t	ln_sleepword;		/* Unused - rt_ip6sleepword used instead */
	send_llinfo_t send_llinfo;	/* SEND specific information such as timestamp */
/* deletion time in seconds, 0 == locked */
#define ln_timer ln_rt->rt_rmx.rmx_expire
};
#define LLNDP6_PHASEDOUT	0	/* held very old routes */
#define LLNDP6_INCOMPLETE	1	/* no info yet */
#define LLNDP6_PROBING		2	/* usable, NUD probes it */
#define LLNDP6_REACHABLE	3	/* valid */
#define LLNDP6_BUILTIN		4	/* don't fall into probing */

#define LNF_ISROUTER	0x0001
#define LNF_RTNOTIFY	0x0002	/* RFC 4191 */
#define M_NOPROBE		M_BCAST	/* don't trigger NUD probes */

/*
 * Neighbor Discovery specific interface flag.
 */
#define IFA_BOOTING	RTF_XRESOLVE

#endif

#endif