[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

#ifndef CONFIG_MAXVIFS
#define CONFIG_MAXVIFS 32  /* 4635538 temp workaround */
#endif

#ifndef CONFIG_MFCTBLSIZ
#define CONFIG_MFCTBLSIZ 256  /* 4635538 temp workaround */
#endif

/*
 * Types and macros for handling bitmaps with one bit per virtual interface.
 */
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[CONFIG_MAXVIFS];	/* forwarding ttls on vifs   */
};

/*
 * The kernel's multicast routing statistics.
 */
struct mrtstat {
    u_int32_t	mrts_mfc_lookups;	/* # forw. cache hash table hits   */
    u_int32_t	mrts_mfc_misses;	/* # forw. cache hash table misses */
    u_int32_t	mrts_upcalls;		/* # calls to mrouted              */
    u_int32_t	mrts_no_route;		/* no route for packet's origin    */
    u_int32_t	mrts_bad_tunnel;	/* malformed tunnel options        */
    u_int32_t	mrts_cant_tunnel;	/* no room for tunnel options      */
    u_int32_t	mrts_wrong_if;		/* arrived on wrong interface      */
    u_int32_t	mrts_upq_ovflw;		/* upcall Q overflow               */
    u_int32_t	mrts_cache_cleanups;	/* # entries with no upcalls       */
    u_int32_t	mrts_drop_sel;		/* pkts dropped selectively        */
    u_int32_t	mrts_q_overflow;	/* pkts dropped - Q overflow       */
    u_int32_t	mrts_pkt2large;		/* pkts dropped - size > BKT SIZE  */
    u_int32_t	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_int32_t		pktcnt;
    u_int32_t		bytecnt;
    u_int32_t		wrong_if;
};

/*
 * Argument structure used by mrouted to get vif pkt counts
 */
struct sioc_vif_req {
    vifi_t		vifi;		/* vif number			*/
    u_int32_t		icount;		/* Input packet count on vif	*/
    u_int32_t		ocount;		/* Output packet count on vif	*/
    u_int32_t		ibytes;		/* Input byte count on vif	*/
    u_int32_t		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[CONFIG_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_int32_t	    unused1;
    u_int32_t	    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       CONFIG_MFCTBLSIZ

#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 (CONFIG_MFCTBLSIZ & (CONFIG_MFCTBLSIZ - 1)) == 0	  /* from sys:route.h */
#define MFCHASHMOD(h)	((h) & (CONFIG_MFCTBLSIZ - 1))
#else
#define MFCHASHMOD(h)	((h) % CONFIG_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	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 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.
8f6c56a5	14	*
2d21ac55 A	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
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	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	99
2d21ac55 A	100	#ifndef CONFIG_MAXVIFS
	101	#define CONFIG_MAXVIFS 32 /* 4635538 temp workaround */
	102	#endif
	103
	104	#ifndef CONFIG_MFCTBLSIZ
	105	#define CONFIG_MFCTBLSIZ 256 /* 4635538 temp workaround */
	106	#endif
	107
1c79356b A	108	/*
	109	* Types and macros for handling bitmaps with one bit per virtual interface.
	110	*/
1c79356b A	111	typedef u_long vifbitmap_t;
	112	typedef u_short vifi_t; /* type of a vif index */
	113	#define ALL_VIFS (vifi_t)-1
	114
	115	#define VIFM_SET(n, m) ((m) \|= (1 << (n)))
	116	#define VIFM_CLR(n, m) ((m) &= ~(1 << (n)))
	117	#define VIFM_ISSET(n, m) ((m) & (1 << (n)))
	118	#define VIFM_CLRALL(m) ((m) = 0x00000000)
	119	#define VIFM_COPY(mfrom, mto) ((mto) = (mfrom))
	120	#define VIFM_SAME(m1, m2) ((m1) == (m2))
	121
	122
	123	/*
	124	* Argument structure for MRT_ADD_VIF.
	125	* (MRT_DEL_VIF takes a single vifi_t argument.)
	126	*/
	127	struct vifctl {
2d21ac55 A	128	vifi_t vifc_vifi; /* the index of the vif to be added */
	129	u_char vifc_flags; /* VIFF_ flags defined below */
	130	u_char vifc_threshold; /* min ttl required to forward on vif */
	131	u_int vifc_rate_limit; /* max rate */
	132	struct in_addr vifc_lcl_addr; /* local interface address */
	133	struct in_addr vifc_rmt_addr; /* remote address (tunnels only) */
1c79356b A	134	};
	135
	136	#define VIFF_TUNNEL 0x1 /* vif represents a tunnel end-point */
	137	#define VIFF_SRCRT 0x2 /* tunnel uses IP source routing */
	138
	139	/*
	140	* Argument structure for MRT_ADD_MFC and MRT_DEL_MFC
	141	* (mfcc_tos to be added at a future point)
	142	*/
	143	struct mfcctl {
2d21ac55 A	144	struct in_addr mfcc_origin; /* ip origin of mcasts */
	145	struct in_addr mfcc_mcastgrp; /* multicast group associated*/
	146	vifi_t mfcc_parent; /* incoming vif */
	147	u_char mfcc_ttls[CONFIG_MAXVIFS]; /* forwarding ttls on vifs */
1c79356b A	148	};
	149
	150	/*
	151	* The kernel's multicast routing statistics.
	152	*/
	153	struct mrtstat {
2d21ac55 A	154	u_int32_t mrts_mfc_lookups; /* # forw. cache hash table hits */
	155	u_int32_t mrts_mfc_misses; /* # forw. cache hash table misses */
	156	u_int32_t mrts_upcalls; /* # calls to mrouted */
	157	u_int32_t mrts_no_route; /* no route for packet's origin */
	158	u_int32_t mrts_bad_tunnel; /* malformed tunnel options */
	159	u_int32_t mrts_cant_tunnel; /* no room for tunnel options */
	160	u_int32_t mrts_wrong_if; /* arrived on wrong interface */
	161	u_int32_t mrts_upq_ovflw; /* upcall Q overflow */
	162	u_int32_t mrts_cache_cleanups; /* # entries with no upcalls */
	163	u_int32_t mrts_drop_sel; /* pkts dropped selectively */
	164	u_int32_t mrts_q_overflow; /* pkts dropped - Q overflow */
	165	u_int32_t mrts_pkt2large; /* pkts dropped - size > BKT SIZE */
	166	u_int32_t mrts_upq_sockfull; /* upcalls dropped - socket full */
1c79356b A	167	};
	168
	169	/*
	170	* Argument structure used by mrouted to get src-grp pkt counts
	171	*/
	172	struct sioc_sg_req {
2d21ac55 A	173	struct in_addr src;
	174	struct in_addr grp;
	175	u_int32_t pktcnt;
	176	u_int32_t bytecnt;
	177	u_int32_t wrong_if;
1c79356b A	178	};
	179
	180	/*
	181	* Argument structure used by mrouted to get vif pkt counts
	182	*/
	183	struct sioc_vif_req {
2d21ac55 A	184	vifi_t vifi; /* vif number */
	185	u_int32_t icount; /* Input packet count on vif */
	186	u_int32_t ocount; /* Output packet count on vif */
	187	u_int32_t ibytes; /* Input byte count on vif */
	188	u_int32_t obytes; /* Output byte count on vif */
1c79356b	189	};
1c79356b	190
91447636	191	#ifdef PRIVATE
1c79356b A	192	/*
	193	* The kernel's virtual-interface structure.
	194	*/
91447636 A	195	struct tbf;
	196	struct ifnet;
	197	struct socket;
1c79356b A	198	struct vif {
	199	u_char v_flags; /* VIFF_ flags defined above */
	200	u_char v_threshold; /* min ttl required to forward on vif*/
	201	u_int v_rate_limit; /* max rate */
	202	struct tbf v_tbf; / token bucket structure at intf. */
	203	struct in_addr v_lcl_addr; /* local interface address */
	204	struct in_addr v_rmt_addr; /* remote address (tunnels only) */
	205	struct ifnet v_ifp; / pointer to interface */
	206	u_long v_pkt_in; /* # pkts in on interface */
	207	u_long v_pkt_out; /* # pkts out on interface */
	208	u_long v_bytes_in; /* # bytes in on interface */
	209	u_long v_bytes_out; /* # bytes out on interface */
	210	struct route v_route; /* cached route if this is a tunnel */
	211	u_int v_rsvp_on; /* RSVP listening on this vif */
	212	struct socket v_rsvpd; / RSVP daemon socket */
	213	};
91447636	214	#endif
1c79356b A	215
	216	/*
	217	* The kernel's multicast forwarding cache entry structure
	218	* (A field for the type of service (mfc_tos) is to be added
	219	* at a future point)
	220	*/
	221	struct mfc {
	222	struct in_addr mfc_origin; /* IP origin of mcasts */
	223	struct in_addr mfc_mcastgrp; /* multicast group associated*/
	224	vifi_t mfc_parent; /* incoming vif */
2d21ac55	225	u_char mfc_ttls[CONFIG_MAXVIFS]; /* forwarding ttls on vifs */
1c79356b A	226	u_long mfc_pkt_cnt; /* pkt count for src-grp */
	227	u_long mfc_byte_cnt; /* byte count for src-grp */
	228	u_long mfc_wrong_if; /* wrong if for src-grp */
	229	int mfc_expire; /* time to clean entry up */
	230	struct timeval mfc_last_assert; /* last time I sent an assert*/
	231	struct rtdetq mfc_stall; / q of packets awaiting mfc */
	232	struct mfc mfc_next; / next mfc entry */
	233	};
	234
	235	/*
	236	* Struct used to communicate from kernel to multicast router
	237	* note the convenient similarity to an IP packet
	238	*/
	239	struct igmpmsg {
2d21ac55 A	240	u_int32_t unused1;
2d21ac55 A	241	u_int32_t unused2;
1c79356b A	242	u_char im_msgtype; /* what type of message */
	243	#define IGMPMSG_NOCACHE 1
	244	#define IGMPMSG_WRONGVIF 2
	245	u_char im_mbz; /* must be zero */
	246	u_char im_vif; /* vif rec'd on */
	247	u_char unused3;
	248	struct in_addr im_src, im_dst;
	249	};
2d21ac55 A	250
2d21ac55 A	251	#define MFCTBLSIZ CONFIG_MFCTBLSIZ
1c79356b	252
91447636	253	#ifdef KERNEL_PRIVATE
1c79356b A	254	/*
	255	* Argument structure used for pkt info. while upcall is made
	256	*/
	257	struct rtdetq {
	258	struct mbuf m; / A copy of the packet */
	259	struct ifnet ifp; / Interface pkt came in on */
	260	vifi_t xmt_vif; /* Saved copy of imo_multicast_vif */
	261	#if UPCALL_TIMING
	262	struct timeval t; /* Timestamp */
	263	#endif /* UPCALL_TIMING */
	264	struct rtdetq next; / Next in list of packets */
	265	};
	266
2d21ac55 A	267	#if (CONFIG_MFCTBLSIZ & (CONFIG_MFCTBLSIZ - 1)) == 0 /* from sys:route.h */
2d21ac55 A	268	#define MFCHASHMOD(h) ((h) & (CONFIG_MFCTBLSIZ - 1))
1c79356b	269	#else
2d21ac55	270	#define MFCHASHMOD(h) ((h) % CONFIG_MFCTBLSIZ)
1c79356b A	271	#endif
	272
	273	#define MAX_UPQ 4 /* max. no of pkts in upcall Q */
	274
	275	/*
	276	* Token Bucket filter code
	277	*/
	278	#define MAX_BKT_SIZE 10000 /* 10K bytes size */
	279	#define MAXQSIZE 10 /* max # of pkts in queue */
	280
	281	/*
	282	* the token bucket filter at each vif
	283	*/
	284	struct tbf
	285	{
	286	struct timeval tbf_last_pkt_t; /* arr. time of last pkt */
	287	u_long tbf_n_tok; /* no of tokens in bucket */
	288	u_long tbf_q_len; /* length of queue at this vif */
	289	u_long tbf_max_q_len; /* max. queue length */
	290	struct mbuf tbf_q; / Packet queue */
	291	struct mbuf tbf_t; / tail-insertion pointer */
	292	};
	293
1c79356b A	294
	295	struct sockopt;
	296
91447636 A	297	extern int (ip_mrouter_set)(struct socket , struct sockopt *);
	298	extern int (ip_mrouter_get)(struct socket , struct sockopt *);
	299	extern int (*ip_mrouter_done)(void);
1c79356b	300	#if MROUTING
91447636	301	extern int (*mrt_ioctl)(int, caddr_t);
1c79356b	302	#else
91447636	303	extern int (mrt_ioctl)(int, caddr_t, struct proc );
1c79356b A	304	#endif
1c79356b A	305
91447636	306	#endif KERNEL_PRIVATE
0c530ab8	307	#endif /* _NETINET_IP_MROUTE_H_ */