newlib/newlib/libc/sys/linux/include/netinet6/ip6_mroute.h - native_client/nacl-toolchain - Git at Google

 /*	$FreeBSD: src/sys/netinet6/ip6_mroute.h,v 1.5 2002/04/19 04:46:23 suz Exp $	*/
 /*	$KAME: ip6_mroute.h,v 1.19 2001/06/14 06:12:55 suz Exp $	*/

 /*
  * Copyright (C) 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.
  */

 /*	BSDI ip_mroute.h,v 2.5 1996/10/11 16:01:48 pjd Exp	*/

 /*
  * Definitions for IP multicast forwarding.
  *
  * Written by David Waitzman, BBN Labs, August 1988.
  * Modified by Steve Deering, Stanford, February 1989.
  * Modified by Ajit Thyagarajan, PARC, August 1993.
  * Modified by Ajit Thyagarajan, PARC, August 1994.
  * Modified by Ahmed Helmy, USC, September 1996.
  *
  * MROUTING Revision: 1.2
  */

 #ifndef _NETINET6_IP6_MROUTE_H_
 #define _NETINET6_IP6_MROUTE_H_

 /*
  * Multicast Routing set/getsockopt commands.
  */
 #ifdef _KERNEL
 #define MRT6_OINIT		100	/* initialize forwarder (omrt6msg) */
 #endif
 #define MRT6_DONE		101	/* shut down forwarder */
 #define MRT6_ADD_MIF		102	/* add multicast interface */
 #define MRT6_DEL_MIF		103	/* delete multicast interface */
 #define MRT6_ADD_MFC		104	/* insert forwarding cache entry */
 #define MRT6_DEL_MFC		105	/* delete forwarding cache entry */
 #define MRT6_PIM                107     /* enable pim code */
 #define MRT6_INIT		108	/* initialize forwarder (mrt6msg) */

 #if BSD >= 199103
 #define GET_TIME(t)	microtime(&t)
 #elif defined(sun)
 #define GET_TIME(t)	uniqtime(&t)
 #else
 #define GET_TIME(t)	((t) = time)
 #endif

 /*
  * Types and macros for handling bitmaps with one bit per multicast interface.
  */
 typedef u_short mifi_t;		/* type of a mif index */
 #define MAXMIFS		64

 #ifndef	IF_SETSIZE
 #define	IF_SETSIZE	256
 #endif

 typedef	u_int32_t	if_mask;
 #define	NIFBITS	(sizeof(if_mask) * NBBY)	/* bits per mask */

 #ifndef howmany
 #define	howmany(x, y)	(((x) + ((y) - 1)) / (y))
 #endif

 typedef	struct if_set {
 	if_mask	ifs_bits[howmany(IF_SETSIZE, NIFBITS)];
 } if_set;

 #define	IF_SET(n, p)	((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))
 #define	IF_CLR(n, p)	((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
 #define	IF_ISSET(n, p)	((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
 #define	IF_COPY(f, t)	bcopy(f, t, sizeof(*(f)))
 #define	IF_ZERO(p)	bzero(p, sizeof(*(p)))

 /*
  * Argument structure for MRT6_ADD_IF.
  */
 struct mif6ctl {
 	mifi_t	    mif6c_mifi;	    	/* the index of the mif to be added  */
 	u_char	    mif6c_flags;     	/* MIFF_ flags defined below         */
 	u_short	    mif6c_pifi;		/* the index of the physical IF */
 #ifdef notyet
 	u_int	    mif6c_rate_limit;    /* max rate           		     */
 #endif
 };

 #define	MIFF_REGISTER	0x1	/* mif represents a register end-point */

 /*
  * Argument structure for MRT6_ADD_MFC and MRT6_DEL_MFC
  */
 struct mf6cctl {
 	struct sockaddr_in6 mf6cc_origin;	/* IPv6 origin of mcasts */
 	struct sockaddr_in6 mf6cc_mcastgrp; /* multicast group associated */
 	mifi_t		mf6cc_parent;	/* incoming ifindex */
 	struct if_set	mf6cc_ifset;	/* set of forwarding ifs */
 };

 /*
  * The kernel's multicast routing statistics.
  */
 struct mrt6stat {
 	u_quad_t mrt6s_mfc_lookups;	/* # forw. cache hash table hits   */
 	u_quad_t mrt6s_mfc_misses;	/* # forw. cache hash table misses */
 	u_quad_t mrt6s_upcalls;		/* # calls to mrouted              */
 	u_quad_t mrt6s_no_route;	/* no route for packet's origin    */
 	u_quad_t mrt6s_bad_tunnel;	/* malformed tunnel options        */
 	u_quad_t mrt6s_cant_tunnel;	/* no room for tunnel options      */
 	u_quad_t mrt6s_wrong_if;	/* arrived on wrong interface	   */
 	u_quad_t mrt6s_upq_ovflw;	/* upcall Q overflow		   */
 	u_quad_t mrt6s_cache_cleanups;	/* # entries with no upcalls 	   */
 	u_quad_t mrt6s_drop_sel;     	/* pkts dropped selectively        */
 	u_quad_t mrt6s_q_overflow;    	/* pkts dropped - Q overflow       */
 	u_quad_t mrt6s_pkt2large;     	/* pkts dropped - size > BKT SIZE  */
 	u_quad_t mrt6s_upq_sockfull;	/* upcalls dropped - socket full   */
 };

 #ifdef MRT6_OINIT
 /*
  * Struct used to communicate from kernel to multicast router
  * note the convenient similarity to an IPv6 header.
  * XXX old version, superseded by mrt6msg.
  */
 struct omrt6msg {
 	u_long	    unused1;
 	u_char	    im6_msgtype;		/* what type of message	    */
 #if 0
 #define MRT6MSG_NOCACHE	1
 #define MRT6MSG_WRONGMIF	2
 #define MRT6MSG_WHOLEPKT	3		/* used for user level encap*/
 #endif
 	u_char	    im6_mbz;			/* must be zero		    */
 	u_char	    im6_mif;			/* mif rec'd on		    */
 	u_char	    unused2;
 	struct in6_addr  im6_src, im6_dst;
 };
 #endif

 /*
  * Structure used to communicate from kernel to multicast router.
  * We'll overlay the structure onto an MLD header (not an IPv6 header
  * like igmpmsg{} used for IPv4 implementation). This is because this
  * structure will be passed via an IPv6 raw socket, on which an application
  * will only receive the payload i.e. the data after the IPv6 header and all
  * the extension headers. (see Section 3 of draft-ietf-ipngwg-2292bis-01)
  */
 struct mrt6msg {
 #define MRT6MSG_NOCACHE		1
 #define MRT6MSG_WRONGMIF	2
 #define MRT6MSG_WHOLEPKT	3		/* used for user level encap*/
 	u_char	    im6_mbz;			/* must be zero		    */
 	u_char	    im6_msgtype;		/* what type of message	    */
 	u_int16_t   im6_mif;			/* mif rec'd on		    */
 	u_int32_t   im6_pad;			/* padding for 64bit arch   */
 	struct in6_addr  im6_src, im6_dst;
 };

 /*
  * Argument structure used by multicast routing daemon to get src-grp
  * packet counts
  */
 struct sioc_sg_req6 {
 	struct sockaddr_in6 src;
 	struct sockaddr_in6 grp;
 	u_quad_t pktcnt;
 	u_quad_t bytecnt;
 	u_quad_t wrong_if;
 };

 /*
  * Argument structure used by mrouted to get mif pkt counts
  */
 struct sioc_mif_req6 {
 	mifi_t mifi;		/* mif number				*/
 	u_quad_t icount;	/* Input packet count on mif		*/
 	u_quad_t ocount;	/* Output packet count on mif		*/
 	u_quad_t ibytes;	/* Input byte count on mif		*/
 	u_quad_t obytes;	/* Output byte count on mif		*/
 };

 #if defined(_KERNEL) || defined(KERNEL)
 /*
  * The kernel's multicast-interface structure.
  */
 struct mif6 {
         u_char   	m6_flags;     	/* MIFF_ flags defined above         */
 	u_int      	m6_rate_limit; 	/* max rate			     */
 #ifdef notyet
 	struct tbf      *m6_tbf;      	/* token bucket structure at intf.   */
 #endif
 	struct in6_addr	m6_lcl_addr;   	/* local interface address           */
 	struct ifnet    *m6_ifp;     	/* pointer to interface              */
 	u_quad_t	m6_pkt_in;	/* # pkts in on interface            */
 	u_quad_t	m6_pkt_out;	/* # pkts out on interface           */
 	u_quad_t	m6_bytes_in;	/* # bytes in on interface	     */
 	u_quad_t	m6_bytes_out;	/* # bytes out on interface	     */
 	struct route_in6 m6_route;/* cached route if this is a tunnel */
 #ifdef notyet
 	u_int		m6_rsvp_on;	/* RSVP listening on this vif */
 	struct socket   *m6_rsvpd;	/* RSVP daemon socket */
 #endif
 };

 /*
  * The kernel's multicast forwarding cache entry structure
  */
 struct mf6c {
 	struct sockaddr_in6  mf6c_origin;	/* IPv6 origin of mcasts     */
 	struct sockaddr_in6  mf6c_mcastgrp;	/* multicast group associated*/
 	mifi_t	    	 mf6c_parent; 		/* incoming IF               */
 	struct if_set	 mf6c_ifset;		/* set of outgoing IFs */

 	u_quad_t    	mf6c_pkt_cnt;		/* pkt count for src-grp     */
 	u_quad_t    	mf6c_byte_cnt;		/* byte count for src-grp    */
 	u_quad_t    	mf6c_wrong_if;		/* wrong if for src-grp	     */
 	int	    	mf6c_expire;		/* time to clean entry up    */
 	struct timeval  mf6c_last_assert;	/* last time I sent an assert*/
 	struct rtdetq  *mf6c_stall;		/* pkts waiting for route */
 	struct mf6c    *mf6c_next;		/* hash table linkage */
 };

 #define MF6C_INCOMPLETE_PARENT ((mifi_t)-1)

 /*
  * Argument structure used for pkt info. while upcall is made
  */
 #ifndef _NETINET_IP_MROUTE_H_
 struct rtdetq {		/* XXX: rtdetq is also defined in ip_mroute.h */
     struct mbuf 	*m;		/* A copy of the packet	    	    */
     struct ifnet	*ifp;		/* Interface pkt came in on 	    */
 #ifdef UPCALL_TIMING
     struct timeval	t;		/* Timestamp */
 #endif /* UPCALL_TIMING */
     struct rtdetq	*next;
 };
 #endif /* _NETINET_IP_MROUTE_H_ */

 #define MF6CTBLSIZ	256
 #if (MF6CTBLSIZ & (MF6CTBLSIZ - 1)) == 0	  /* from sys:route.h */
 #define MF6CHASHMOD(h)	((h) & (MF6CTBLSIZ - 1))
 #else
 #define MF6CHASHMOD(h)	((h) % MF6CTBLSIZ)
 #endif

 #define MAX_UPQ6	4		/* max. no of pkts in upcall Q */

 int	ip6_mrouter_set __P((struct socket *so, struct sockopt *sopt));
 int	ip6_mrouter_get __P((struct socket *so, struct sockopt *sopt));
 int	ip6_mrouter_done __P((void));
 int	mrt6_ioctl __P((int, caddr_t));
 #endif /* _KERNEL */

 #endif /* !_NETINET6_IP6_MROUTE_H_ */
	/* $FreeBSD: src/sys/netinet6/ip6_mroute.h,v 1.5 2002/04/19 04:46:23 suz Exp $ */
	/* $KAME: ip6_mroute.h,v 1.19 2001/06/14 06:12:55 suz Exp $ */

	/*
	* Copyright (C) 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.
	*/

	/* BSDI ip_mroute.h,v 2.5 1996/10/11 16:01:48 pjd Exp */

	/*
	* Definitions for IP multicast forwarding.
	*
	* Written by David Waitzman, BBN Labs, August 1988.
	* Modified by Steve Deering, Stanford, February 1989.
	* Modified by Ajit Thyagarajan, PARC, August 1993.
	* Modified by Ajit Thyagarajan, PARC, August 1994.
	* Modified by Ahmed Helmy, USC, September 1996.
	*
	* MROUTING Revision: 1.2
	*/

	#ifndef _NETINET6_IP6_MROUTE_H_
	#define _NETINET6_IP6_MROUTE_H_

	/*
	* Multicast Routing set/getsockopt commands.
	*/
	#ifdef _KERNEL
	#define MRT6_OINIT 100 /* initialize forwarder (omrt6msg) */
	#endif
	#define MRT6_DONE 101 /* shut down forwarder */
	#define MRT6_ADD_MIF 102 /* add multicast interface */
	#define MRT6_DEL_MIF 103 /* delete multicast interface */
	#define MRT6_ADD_MFC 104 /* insert forwarding cache entry */
	#define MRT6_DEL_MFC 105 /* delete forwarding cache entry */
	#define MRT6_PIM 107 /* enable pim code */
	#define MRT6_INIT 108 /* initialize forwarder (mrt6msg) */

	#if BSD >= 199103
	#define GET_TIME(t) microtime(&t)
	#elif defined(sun)
	#define GET_TIME(t) uniqtime(&t)
	#else
	#define GET_TIME(t) ((t) = time)
	#endif

	/*
	* Types and macros for handling bitmaps with one bit per multicast interface.
	*/
	typedef u_short mifi_t; /* type of a mif index */
	#define MAXMIFS 64

	#ifndef IF_SETSIZE
	#define IF_SETSIZE 256
	#endif

	typedef u_int32_t if_mask;
	#define NIFBITS (sizeof(if_mask) * NBBY) /* bits per mask */

	#ifndef howmany
	#define howmany(x, y) (((x) + ((y) - 1)) / (y))
	#endif

	typedef struct if_set {
	if_mask ifs_bits[howmany(IF_SETSIZE, NIFBITS)];
	} if_set;

	#define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] \|= (1 << ((n) % NIFBITS)))
	#define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
	#define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
	#define IF_COPY(f, t) bcopy(f, t, sizeof(*(f)))
	#define IF_ZERO(p) bzero(p, sizeof(*(p)))

	/*
	* Argument structure for MRT6_ADD_IF.
	*/
	struct mif6ctl {
	mifi_t mif6c_mifi; /* the index of the mif to be added */
	u_char mif6c_flags; /* MIFF_ flags defined below */
	u_short mif6c_pifi; /* the index of the physical IF */
	#ifdef notyet
	u_int mif6c_rate_limit; /* max rate */
	#endif
	};

	#define MIFF_REGISTER 0x1 /* mif represents a register end-point */

	/*
	* Argument structure for MRT6_ADD_MFC and MRT6_DEL_MFC
	*/
	struct mf6cctl {
	struct sockaddr_in6 mf6cc_origin; /* IPv6 origin of mcasts */
	struct sockaddr_in6 mf6cc_mcastgrp; /* multicast group associated */
	mifi_t mf6cc_parent; /* incoming ifindex */
	struct if_set mf6cc_ifset; /* set of forwarding ifs */
	};

	/*
	* The kernel's multicast routing statistics.
	*/
	struct mrt6stat {
	u_quad_t mrt6s_mfc_lookups; /* # forw. cache hash table hits */
	u_quad_t mrt6s_mfc_misses; /* # forw. cache hash table misses */
	u_quad_t mrt6s_upcalls; /* # calls to mrouted */
	u_quad_t mrt6s_no_route; /* no route for packet's origin */
	u_quad_t mrt6s_bad_tunnel; /* malformed tunnel options */
	u_quad_t mrt6s_cant_tunnel; /* no room for tunnel options */
	u_quad_t mrt6s_wrong_if; /* arrived on wrong interface */
	u_quad_t mrt6s_upq_ovflw; /* upcall Q overflow */
	u_quad_t mrt6s_cache_cleanups; /* # entries with no upcalls */
	u_quad_t mrt6s_drop_sel; /* pkts dropped selectively */
	u_quad_t mrt6s_q_overflow; /* pkts dropped - Q overflow */
	u_quad_t mrt6s_pkt2large; /* pkts dropped - size > BKT SIZE */
	u_quad_t mrt6s_upq_sockfull; /* upcalls dropped - socket full */
	};

	#ifdef MRT6_OINIT
	/*
	* Struct used to communicate from kernel to multicast router
	* note the convenient similarity to an IPv6 header.
	* XXX old version, superseded by mrt6msg.
	*/
	struct omrt6msg {
	u_long unused1;
	u_char im6_msgtype; /* what type of message */
	#if 0
	#define MRT6MSG_NOCACHE 1
	#define MRT6MSG_WRONGMIF 2
	#define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/
	#endif
	u_char im6_mbz; /* must be zero */
	u_char im6_mif; /* mif rec'd on */
	u_char unused2;
	struct in6_addr im6_src, im6_dst;
	};
	#endif

	/*
	* Structure used to communicate from kernel to multicast router.
	* We'll overlay the structure onto an MLD header (not an IPv6 header
	* like igmpmsg{} used for IPv4 implementation). This is because this
	* structure will be passed via an IPv6 raw socket, on which an application
	* will only receive the payload i.e. the data after the IPv6 header and all
	* the extension headers. (see Section 3 of draft-ietf-ipngwg-2292bis-01)
	*/
	struct mrt6msg {
	#define MRT6MSG_NOCACHE 1
	#define MRT6MSG_WRONGMIF 2
	#define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/
	u_char im6_mbz; /* must be zero */
	u_char im6_msgtype; /* what type of message */
	u_int16_t im6_mif; /* mif rec'd on */
	u_int32_t im6_pad; /* padding for 64bit arch */
	struct in6_addr im6_src, im6_dst;
	};

	/*
	* Argument structure used by multicast routing daemon to get src-grp
	* packet counts
	*/
	struct sioc_sg_req6 {
	struct sockaddr_in6 src;
	struct sockaddr_in6 grp;
	u_quad_t pktcnt;
	u_quad_t bytecnt;
	u_quad_t wrong_if;
	};

	/*
	* Argument structure used by mrouted to get mif pkt counts
	*/
	struct sioc_mif_req6 {
	mifi_t mifi; /* mif number */
	u_quad_t icount; /* Input packet count on mif */
	u_quad_t ocount; /* Output packet count on mif */
	u_quad_t ibytes; /* Input byte count on mif */
	u_quad_t obytes; /* Output byte count on mif */
	};

	#if defined(_KERNEL) \|\| defined(KERNEL)
	/*
	* The kernel's multicast-interface structure.
	*/
	struct mif6 {
	u_char m6_flags; /* MIFF_ flags defined above */
	u_int m6_rate_limit; /* max rate */
	#ifdef notyet
	struct tbf m6_tbf; / token bucket structure at intf. */
	#endif
	struct in6_addr m6_lcl_addr; /* local interface address */
	struct ifnet m6_ifp; / pointer to interface */
	u_quad_t m6_pkt_in; /* # pkts in on interface */
	u_quad_t m6_pkt_out; /* # pkts out on interface */
	u_quad_t m6_bytes_in; /* # bytes in on interface */
	u_quad_t m6_bytes_out; /* # bytes out on interface */
	struct route_in6 m6_route;/* cached route if this is a tunnel */
	#ifdef notyet
	u_int m6_rsvp_on; /* RSVP listening on this vif */
	struct socket m6_rsvpd; / RSVP daemon socket */
	#endif
	};

	/*
	* The kernel's multicast forwarding cache entry structure
	*/
	struct mf6c {
	struct sockaddr_in6 mf6c_origin; /* IPv6 origin of mcasts */
	struct sockaddr_in6 mf6c_mcastgrp; /* multicast group associated*/
	mifi_t mf6c_parent; /* incoming IF */
	struct if_set mf6c_ifset; /* set of outgoing IFs */

	u_quad_t mf6c_pkt_cnt; /* pkt count for src-grp */
	u_quad_t mf6c_byte_cnt; /* byte count for src-grp */
	u_quad_t mf6c_wrong_if; /* wrong if for src-grp */
	int mf6c_expire; /* time to clean entry up */
	struct timeval mf6c_last_assert; /* last time I sent an assert*/
	struct rtdetq mf6c_stall; / pkts waiting for route */
	struct mf6c mf6c_next; / hash table linkage */
	};

	#define MF6C_INCOMPLETE_PARENT ((mifi_t)-1)

	/*
	* Argument structure used for pkt info. while upcall is made
	*/
	#ifndef _NETINET_IP_MROUTE_H_
	struct rtdetq { /* XXX: rtdetq is also defined in ip_mroute.h */
	struct mbuf m; / A copy of the packet */
	struct ifnet ifp; / Interface pkt came in on */
	#ifdef UPCALL_TIMING
	struct timeval t; /* Timestamp */
	#endif /* UPCALL_TIMING */
	struct rtdetq *next;
	};
	#endif /* _NETINET_IP_MROUTE_H_ */

	#define MF6CTBLSIZ 256
	#if (MF6CTBLSIZ & (MF6CTBLSIZ - 1)) == 0 /* from sys:route.h */
	#define MF6CHASHMOD(h) ((h) & (MF6CTBLSIZ - 1))
	#else
	#define MF6CHASHMOD(h) ((h) % MF6CTBLSIZ)
	#endif

	#define MAX_UPQ6 4 /* max. no of pkts in upcall Q */

	int ip6_mrouter_set __P((struct socket so, struct sockopt sopt));
	int ip6_mrouter_get __P((struct socket so, struct sockopt sopt));
	int ip6_mrouter_done __P((void));
	int mrt6_ioctl __P((int, caddr_t));
	#endif /* _KERNEL */

	#endif /* !_NETINET6_IP6_MROUTE_H_ */