[apple/xnu.git] / bsd / netinet / ip_mroute.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 1989 Stephen Deering.
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Stephen Deering of Stanford University.
 *
 * 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. 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
 * 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.
 *
 *	@(#)ip_mroute.h	8.1 (Berkeley) 6/10/93
 */

#ifndef _NETINET_IP_MROUTE_H_
#define _NETINET_IP_MROUTE_H_
#include <sys/appleapiopts.h>

/*
 * 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.
 *
 * MROUTING Revision: 3.3.1.3
 */


/*
 * Multicast Routing set/getsockopt commands.
 */
#define	MRT_INIT	100	/* initialize forwarder */
#define	MRT_DONE	101	/* shut down forwarder */
#define	MRT_ADD_VIF	102	/* create virtual interface */
#define	MRT_DEL_VIF	103	/* delete virtual interface */
#define MRT_ADD_MFC	104	/* insert forwarding cache entry */
#define MRT_DEL_MFC	105	/* delete forwarding cache entry */
#define MRT_VERSION	106	/* get kernel version number */
#define MRT_ASSERT      107     /* enable PIM assert processing */


#ifdef KERNEL_PRIVATE
#define GET_TIME(t)	microtime(&t)
#endif KERNEL_PRIVATE

/*
 * Types and macros for handling bitmaps with one bit per virtual interface.
 */
#define	MAXVIFS 32
typedef u_long vifbitmap_t;
typedef u_short vifi_t;		/* type of a vif index */
#define ALL_VIFS (vifi_t)-1

#define	VIFM_SET(n, m)		((m) |= (1 << (n)))
#define	VIFM_CLR(n, m)		((m) &= ~(1 << (n)))
#define	VIFM_ISSET(n, m)	((m) & (1 << (n)))
#define	VIFM_CLRALL(m)		((m) = 0x00000000)
#define	VIFM_COPY(mfrom, mto)	((mto) = (mfrom))
#define	VIFM_SAME(m1, m2)	((m1) == (m2))


/*
 * Argument structure for MRT_ADD_VIF.
 * (MRT_DEL_VIF takes a single vifi_t argument.)
 */
struct vifctl {
	vifi_t	vifc_vifi;	    	/* the index of the vif to be added */
	u_char	vifc_flags;     	/* VIFF_ flags defined below */
	u_char	vifc_threshold; 	/* min ttl required to forward on vif */
	u_int	vifc_rate_limit;	/* max rate */
	struct	in_addr vifc_lcl_addr;	/* local interface address */
	struct	in_addr vifc_rmt_addr;	/* remote address (tunnels only) */
};

#define	VIFF_TUNNEL	0x1		/* vif represents a tunnel end-point */
#define VIFF_SRCRT	0x2		/* tunnel uses IP source routing */

/*
 * Argument structure for MRT_ADD_MFC and MRT_DEL_MFC
 * (mfcc_tos to be added at a future point)
 */
struct mfcctl {
    struct in_addr  mfcc_origin;		/* ip origin of mcasts       */
    struct in_addr  mfcc_mcastgrp; 		/* multicast group associated*/
    vifi_t	    mfcc_parent;   		/* incoming vif              */
    u_char	    mfcc_ttls[MAXVIFS]; 	/* forwarding ttls on vifs   */
};

/*
 * The kernel's multicast routing statistics.
 */
struct mrtstat {
    u_long	mrts_mfc_lookups;	/* # forw. cache hash table hits   */
    u_long	mrts_mfc_misses;	/* # forw. cache hash table misses */
    u_long	mrts_upcalls;		/* # calls to mrouted              */
    u_long	mrts_no_route;		/* no route for packet's origin    */
    u_long	mrts_bad_tunnel;	/* malformed tunnel options        */
    u_long	mrts_cant_tunnel;	/* no room for tunnel options      */
    u_long	mrts_wrong_if;		/* arrived on wrong interface	   */
    u_long	mrts_upq_ovflw;		/* upcall Q overflow		   */
    u_long	mrts_cache_cleanups;	/* # entries with no upcalls 	   */
    u_long  	mrts_drop_sel;     	/* pkts dropped selectively        */
    u_long  	mrts_q_overflow;    	/* pkts dropped - Q overflow       */
    u_long  	mrts_pkt2large;     	/* pkts dropped - size > BKT SIZE  */
    u_long	mrts_upq_sockfull;	/* upcalls dropped - socket full */
};

/*
 * Argument structure used by mrouted to get src-grp pkt counts
 */
struct sioc_sg_req {
    struct in_addr src;
    struct in_addr grp;
    u_long pktcnt;
    u_long bytecnt;
    u_long wrong_if;
};

/*
 * Argument structure used by mrouted to get vif pkt counts
 */
struct sioc_vif_req {
    vifi_t vifi;		/* vif number				*/
    u_long icount;		/* Input packet count on vif		*/
    u_long ocount;		/* Output packet count on vif		*/
    u_long ibytes;		/* Input byte count on vif		*/
    u_long obytes;		/* Output byte count on vif		*/
};

#ifdef PRIVATE
/*
 * The kernel's virtual-interface structure.
 */
struct tbf;
struct ifnet;
struct socket;
struct vif {
    u_char   		v_flags;     	/* VIFF_ flags defined above         */
    u_char   		v_threshold;	/* min ttl required to forward on vif*/
    u_int      		v_rate_limit; 	/* max rate			     */
    struct tbf 	       *v_tbf;       	/* token bucket structure at intf.   */
    struct in_addr 	v_lcl_addr;   	/* local interface address           */
    struct in_addr 	v_rmt_addr;   	/* remote address (tunnels only)     */
    struct ifnet       *v_ifp;	     	/* pointer to interface              */
    u_long		v_pkt_in;	/* # pkts in on interface            */
    u_long		v_pkt_out;	/* # pkts out on interface           */
    u_long		v_bytes_in;	/* # bytes in on interface	     */
    u_long		v_bytes_out;	/* # bytes out on interface	     */
    struct route	v_route;	/* cached route if this is a tunnel */
    u_int		v_rsvp_on;	/* RSVP listening on this vif */
    struct socket      *v_rsvpd;	/* RSVP daemon socket */
};
#endif

/*
 * The kernel's multicast forwarding cache entry structure 
 * (A field for the type of service (mfc_tos) is to be added 
 * at a future point)
 */
struct mfc {
    struct in_addr  mfc_origin;	 		/* IP origin of mcasts   */
    struct in_addr  mfc_mcastgrp;  		/* multicast group associated*/
    vifi_t	    mfc_parent; 		/* incoming vif              */
    u_char	    mfc_ttls[MAXVIFS]; 		/* forwarding ttls on vifs   */
    u_long	    mfc_pkt_cnt;		/* pkt count for src-grp     */
    u_long	    mfc_byte_cnt;		/* byte count for src-grp    */
    u_long	    mfc_wrong_if;		/* wrong if for src-grp	     */
    int		    mfc_expire;			/* time to clean entry up    */
    struct timeval  mfc_last_assert;		/* last time I sent an assert*/
    struct rtdetq  *mfc_stall;			/* q of packets awaiting mfc */
    struct mfc     *mfc_next;			/* next mfc entry            */
};

/*
 * Struct used to communicate from kernel to multicast router
 * note the convenient similarity to an IP packet
 */
struct igmpmsg {
    u_long	    unused1;
    u_long	    unused2;
    u_char	    im_msgtype;			/* what type of message	    */
#define IGMPMSG_NOCACHE		1
#define IGMPMSG_WRONGVIF	2
    u_char	    im_mbz;			/* must be zero		    */
    u_char	    im_vif;			/* vif rec'd on		    */
    u_char	    unused3;
    struct in_addr  im_src, im_dst;
};
#define MFCTBLSIZ       256

#ifdef KERNEL_PRIVATE
/*
 * Argument structure used for pkt info. while upcall is made
 */
struct rtdetq {
    struct mbuf 	*m;		/* A copy of the packet		    */
    struct ifnet	*ifp;		/* Interface pkt came in on	    */
    vifi_t		xmt_vif;	/* Saved copy of imo_multicast_vif  */
#if UPCALL_TIMING
    struct timeval	t;		/* Timestamp */
#endif /* UPCALL_TIMING */
    struct rtdetq	*next;		/* Next in list of packets          */
};

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

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

/*
 * Token Bucket filter code 
 */
#define MAX_BKT_SIZE    10000             /* 10K bytes size 		*/
#define MAXQSIZE        10                /* max # of pkts in queue 	*/

/*
 * the token bucket filter at each vif
 */
struct tbf
{
    struct timeval tbf_last_pkt_t; /* arr. time of last pkt 	*/
    u_long tbf_n_tok;      	/* no of tokens in bucket 	*/
    u_long tbf_q_len;    	/* length of queue at this vif	*/
    u_long tbf_max_q_len;	/* max. queue length		*/
    struct mbuf *tbf_q;		/* Packet queue			*/
    struct mbuf *tbf_t;		/* tail-insertion pointer	*/
};


struct sockopt;

extern int	(*ip_mrouter_set)(struct socket *, struct sockopt *);
extern int	(*ip_mrouter_get)(struct socket *, struct sockopt *);
extern int	(*ip_mrouter_done)(void);
#if MROUTING
extern int	(*mrt_ioctl)(int, caddr_t);
#else
extern int	(*mrt_ioctl)(int, caddr_t, struct proc *);
#endif

#endif KERNEL_PRIVATE
#endif /* _NETINET_IP_MROUTE_H_ */
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
5d5c5d0d A	3	*
8f6c56a5	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
8f6c56a5 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
8ad349bb	24	* limitations under the License.
8f6c56a5 A	25	*
8f6c56a5 A	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/*
	29	* Copyright (c) 1989 Stephen Deering.
	30	* Copyright (c) 1992, 1993
	31	* The Regents of the University of California. All rights reserved.
	32	*
	33	* This code is derived from software contributed to Berkeley by
	34	* Stephen Deering of Stanford University.
	35	*
	36	* Redistribution and use in source and binary forms, with or without
	37	* modification, are permitted provided that the following conditions
	38	* are met:
	39	* 1. Redistributions of source code must retain the above copyright
	40	* notice, this list of conditions and the following disclaimer.
	41	* 2. Redistributions in binary form must reproduce the above copyright
	42	* notice, this list of conditions and the following disclaimer in the
	43	* documentation and/or other materials provided with the distribution.
	44	* 3. All advertising materials mentioning features or use of this software
	45	* must display the following acknowledgement:
	46	* This product includes software developed by the University of
	47	* California, Berkeley and its contributors.
	48	* 4. Neither the name of the University nor the names of its contributors
	49	* may be used to endorse or promote products derived from this software
	50	* without specific prior written permission.
	51	*
	52	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	53	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	54	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	55	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	56	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	57	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	58	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	59	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	60	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	61	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	62	* SUCH DAMAGE.
	63	*
	64	* @(#)ip_mroute.h 8.1 (Berkeley) 6/10/93
	65	*/
	66
	67	#ifndef _NETINET_IP_MROUTE_H_
	68	#define _NETINET_IP_MROUTE_H_
9bccf70c	69	#include <sys/appleapiopts.h>
1c79356b A	70
	71	/*
	72	* Definitions for IP multicast forwarding.
	73	*
	74	* Written by David Waitzman, BBN Labs, August 1988.
	75	* Modified by Steve Deering, Stanford, February 1989.
	76	* Modified by Ajit Thyagarajan, PARC, August 1993.
	77	* Modified by Ajit Thyagarajan, PARC, August 1994.
	78	*
	79	* MROUTING Revision: 3.3.1.3
	80	*/
	81
	82
	83	/*
	84	* Multicast Routing set/getsockopt commands.
	85	*/
	86	#define MRT_INIT 100 /* initialize forwarder */
	87	#define MRT_DONE 101 /* shut down forwarder */
	88	#define MRT_ADD_VIF 102 /* create virtual interface */
	89	#define MRT_DEL_VIF 103 /* delete virtual interface */
	90	#define MRT_ADD_MFC 104 /* insert forwarding cache entry */
	91	#define MRT_DEL_MFC 105 /* delete forwarding cache entry */
	92	#define MRT_VERSION 106 /* get kernel version number */
	93	#define MRT_ASSERT 107 /* enable PIM assert processing */
	94
	95
91447636	96	#ifdef KERNEL_PRIVATE
1c79356b	97	#define GET_TIME(t) microtime(&t)
91447636	98	#endif KERNEL_PRIVATE
1c79356b A	99
	100	/*
	101	* Types and macros for handling bitmaps with one bit per virtual interface.
	102	*/
	103	#define MAXVIFS 32
	104	typedef u_long vifbitmap_t;
	105	typedef u_short vifi_t; /* type of a vif index */
	106	#define ALL_VIFS (vifi_t)-1
	107
	108	#define VIFM_SET(n, m) ((m) \|= (1 << (n)))
	109	#define VIFM_CLR(n, m) ((m) &= ~(1 << (n)))
	110	#define VIFM_ISSET(n, m) ((m) & (1 << (n)))
	111	#define VIFM_CLRALL(m) ((m) = 0x00000000)
	112	#define VIFM_COPY(mfrom, mto) ((mto) = (mfrom))
	113	#define VIFM_SAME(m1, m2) ((m1) == (m2))
	114
	115
	116	/*
	117	* Argument structure for MRT_ADD_VIF.
	118	* (MRT_DEL_VIF takes a single vifi_t argument.)
	119	*/
	120	struct vifctl {
	121	vifi_t vifc_vifi; /* the index of the vif to be added */
	122	u_char vifc_flags; /* VIFF_ flags defined below */
	123	u_char vifc_threshold; /* min ttl required to forward on vif */
	124	u_int vifc_rate_limit; /* max rate */
	125	struct in_addr vifc_lcl_addr; /* local interface address */
	126	struct in_addr vifc_rmt_addr; /* remote address (tunnels only) */
	127	};
	128
	129	#define VIFF_TUNNEL 0x1 /* vif represents a tunnel end-point */
	130	#define VIFF_SRCRT 0x2 /* tunnel uses IP source routing */
	131
	132	/*
	133	* Argument structure for MRT_ADD_MFC and MRT_DEL_MFC
	134	* (mfcc_tos to be added at a future point)
	135	*/
	136	struct mfcctl {
	137	struct in_addr mfcc_origin; /* ip origin of mcasts */
	138	struct in_addr mfcc_mcastgrp; /* multicast group associated*/
	139	vifi_t mfcc_parent; /* incoming vif */
	140	u_char mfcc_ttls[MAXVIFS]; /* forwarding ttls on vifs */
	141	};
	142
	143	/*
	144	* The kernel's multicast routing statistics.
	145	*/
	146	struct mrtstat {
	147	u_long mrts_mfc_lookups; /* # forw. cache hash table hits */
	148	u_long mrts_mfc_misses; /* # forw. cache hash table misses */
	149	u_long mrts_upcalls; /* # calls to mrouted */
	150	u_long mrts_no_route; /* no route for packet's origin */
	151	u_long mrts_bad_tunnel; /* malformed tunnel options */
	152	u_long mrts_cant_tunnel; /* no room for tunnel options */
	153	u_long mrts_wrong_if; /* arrived on wrong interface */
	154	u_long mrts_upq_ovflw; /* upcall Q overflow */
	155	u_long mrts_cache_cleanups; /* # entries with no upcalls */
	156	u_long mrts_drop_sel; /* pkts dropped selectively */
	157	u_long mrts_q_overflow; /* pkts dropped - Q overflow */
	158	u_long mrts_pkt2large; /* pkts dropped - size > BKT SIZE */
	159	u_long mrts_upq_sockfull; /* upcalls dropped - socket full */
	160	};
	161
	162	/*
163	* Argument structure used by mrouted to get src-grp pkt counts
164	*/
165	struct sioc_sg_req {
166	struct in_addr src;
167	struct in_addr grp;
168	u_long pktcnt;
169	u_long bytecnt;
170	u_long wrong_if;
171	};
172
173	/*
174	* Argument structure used by mrouted to get vif pkt counts
175	*/
176	struct sioc_vif_req {
177	vifi_t vifi; /* vif number */
178	u_long icount; /* Input packet count on vif */
179	u_long ocount; /* Output packet count on vif */
180	u_long ibytes; /* Input byte count on vif */
181	u_long obytes; /* Output byte count on vif */
182	};
1c79356b	183
91447636	184	#ifdef PRIVATE
1c79356b A	185	/*
	186	* The kernel's virtual-interface structure.
	187	*/
91447636 A	188	struct tbf;
	189	struct ifnet;
	190	struct socket;
1c79356b A	191	struct vif {
	192	u_char v_flags; /* VIFF_ flags defined above */
	193	u_char v_threshold; /* min ttl required to forward on vif*/
	194	u_int v_rate_limit; /* max rate */
	195	struct tbf v_tbf; / token bucket structure at intf. */
	196	struct in_addr v_lcl_addr; /* local interface address */
	197	struct in_addr v_rmt_addr; /* remote address (tunnels only) */
	198	struct ifnet v_ifp; / pointer to interface */
	199	u_long v_pkt_in; /* # pkts in on interface */
	200	u_long v_pkt_out; /* # pkts out on interface */
	201	u_long v_bytes_in; /* # bytes in on interface */
	202	u_long v_bytes_out; /* # bytes out on interface */
	203	struct route v_route; /* cached route if this is a tunnel */
	204	u_int v_rsvp_on; /* RSVP listening on this vif */
	205	struct socket v_rsvpd; / RSVP daemon socket */
	206	};
91447636	207	#endif
1c79356b A	208
	209	/*
	210	* The kernel's multicast forwarding cache entry structure
	211	* (A field for the type of service (mfc_tos) is to be added
	212	* at a future point)
	213	*/
	214	struct mfc {
	215	struct in_addr mfc_origin; /* IP origin of mcasts */
	216	struct in_addr mfc_mcastgrp; /* multicast group associated*/
	217	vifi_t mfc_parent; /* incoming vif */
	218	u_char mfc_ttls[MAXVIFS]; /* forwarding ttls on vifs */
	219	u_long mfc_pkt_cnt; /* pkt count for src-grp */
	220	u_long mfc_byte_cnt; /* byte count for src-grp */
	221	u_long mfc_wrong_if; /* wrong if for src-grp */
	222	int mfc_expire; /* time to clean entry up */
	223	struct timeval mfc_last_assert; /* last time I sent an assert*/
	224	struct rtdetq mfc_stall; / q of packets awaiting mfc */
	225	struct mfc mfc_next; / next mfc entry */
	226	};
	227
	228	/*
	229	* Struct used to communicate from kernel to multicast router
	230	* note the convenient similarity to an IP packet
	231	*/
	232	struct igmpmsg {
	233	u_long unused1;
	234	u_long unused2;
	235	u_char im_msgtype; /* what type of message */
	236	#define IGMPMSG_NOCACHE 1
	237	#define IGMPMSG_WRONGVIF 2
	238	u_char im_mbz; /* must be zero */
	239	u_char im_vif; /* vif rec'd on */
	240	u_char unused3;
	241	struct in_addr im_src, im_dst;
	242	};
91447636	243	#define MFCTBLSIZ 256
1c79356b	244
91447636	245	#ifdef KERNEL_PRIVATE
1c79356b A	246	/*
	247	* Argument structure used for pkt info. while upcall is made
	248	*/
	249	struct rtdetq {
	250	struct mbuf m; / A copy of the packet */
	251	struct ifnet ifp; / Interface pkt came in on */
	252	vifi_t xmt_vif; /* Saved copy of imo_multicast_vif */
	253	#if UPCALL_TIMING
	254	struct timeval t; /* Timestamp */
	255	#endif /* UPCALL_TIMING */
	256	struct rtdetq next; / Next in list of packets */
	257	};
	258
1c79356b A	259	#if (MFCTBLSIZ & (MFCTBLSIZ - 1)) == 0 /* from sys:route.h */
	260	#define MFCHASHMOD(h) ((h) & (MFCTBLSIZ - 1))
	261	#else
	262	#define MFCHASHMOD(h) ((h) % MFCTBLSIZ)
	263	#endif
	264
	265	#define MAX_UPQ 4 /* max. no of pkts in upcall Q */
	266
	267	/*
	268	* Token Bucket filter code
	269	*/
	270	#define MAX_BKT_SIZE 10000 /* 10K bytes size */
	271	#define MAXQSIZE 10 /* max # of pkts in queue */
	272
	273	/*
	274	* the token bucket filter at each vif
	275	*/
	276	struct tbf
	277	{
	278	struct timeval tbf_last_pkt_t; /* arr. time of last pkt */
	279	u_long tbf_n_tok; /* no of tokens in bucket */
	280	u_long tbf_q_len; /* length of queue at this vif */
	281	u_long tbf_max_q_len; /* max. queue length */
	282	struct mbuf tbf_q; / Packet queue */
	283	struct mbuf tbf_t; / tail-insertion pointer */
	284	};
	285
1c79356b A	286
	287	struct sockopt;
	288
91447636 A	289	extern int (ip_mrouter_set)(struct socket , struct sockopt *);
	290	extern int (ip_mrouter_get)(struct socket , struct sockopt *);
	291	extern int (*ip_mrouter_done)(void);
1c79356b	292	#if MROUTING
91447636	293	extern int (*mrt_ioctl)(int, caddr_t);
1c79356b	294	#else
91447636	295	extern int (mrt_ioctl)(int, caddr_t, struct proc );
1c79356b A	296	#endif
1c79356b A	297
91447636	298	#endif KERNEL_PRIVATE
89b3af67	299	#endif /* _NETINET_IP_MROUTE_H_ */