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

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This 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 OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_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_

/*
 * 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 */


#define GET_TIME(t)	microtime(&t)

/*
 * 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		*/
};
    

/*
 * The kernel's virtual-interface structure.
 */
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 */
};

/*
 * 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;
};

/*
 * 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          */
};

#define MFCTBLSIZ	256
#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	*/
};

#ifdef KERNEL

struct sockopt;

extern int	(*ip_mrouter_set) __P((struct socket *, struct sockopt *));
extern int	(*ip_mrouter_get) __P((struct socket *, struct sockopt *));
extern int	(*ip_mrouter_done) __P((void));

#if MROUTING
extern int	(*mrt_ioctl) __P((int, caddr_t));
#else
extern int	(*mrt_ioctl) __P((int, caddr_t, struct proc *));
#endif

#endif /* KERNEL */

#endif /* _NETINET_IP_MROUTE_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* Copyright (c) 1989 Stephen Deering.
	24	* Copyright (c) 1992, 1993
	25	* The Regents of the University of California. All rights reserved.
	26	*
	27	* This code is derived from software contributed to Berkeley by
	28	* Stephen Deering of Stanford University.
	29	*
	30	* Redistribution and use in source and binary forms, with or without
	31	* modification, are permitted provided that the following conditions
	32	* are met:
	33	* 1. Redistributions of source code must retain the above copyright
	34	* notice, this list of conditions and the following disclaimer.
	35	* 2. Redistributions in binary form must reproduce the above copyright
	36	* notice, this list of conditions and the following disclaimer in the
	37	* documentation and/or other materials provided with the distribution.
	38	* 3. All advertising materials mentioning features or use of this software
	39	* must display the following acknowledgement:
	40	* This product includes software developed by the University of
	41	* California, Berkeley and its contributors.
	42	* 4. Neither the name of the University nor the names of its contributors
	43	* may be used to endorse or promote products derived from this software
	44	* without specific prior written permission.
	45	*
	46	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	47	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	48	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	49	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	50	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	51	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	52	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	53	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	54	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	55	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	56	* SUCH DAMAGE.
	57	*
	58	* @(#)ip_mroute.h 8.1 (Berkeley) 6/10/93
	59	*/
	60
	61	#ifndef _NETINET_IP_MROUTE_H_
	62	#define _NETINET_IP_MROUTE_H_
	63
	64	/*
65	* Definitions for IP multicast forwarding.
66	*
67	* Written by David Waitzman, BBN Labs, August 1988.
68	* Modified by Steve Deering, Stanford, February 1989.
69	* Modified by Ajit Thyagarajan, PARC, August 1993.
70	* Modified by Ajit Thyagarajan, PARC, August 1994.
71	*
72	* MROUTING Revision: 3.3.1.3
73	*/
74
75
76	/*
77	* Multicast Routing set/getsockopt commands.
78	*/
79	#define MRT_INIT 100 /* initialize forwarder */
80	#define MRT_DONE 101 /* shut down forwarder */
81	#define MRT_ADD_VIF 102 /* create virtual interface */
82	#define MRT_DEL_VIF 103 /* delete virtual interface */
83	#define MRT_ADD_MFC 104 /* insert forwarding cache entry */
84	#define MRT_DEL_MFC 105 /* delete forwarding cache entry */
85	#define MRT_VERSION 106 /* get kernel version number */
86	#define MRT_ASSERT 107 /* enable PIM assert processing */
87
88
89	#define GET_TIME(t) microtime(&t)
90
91	/*
92	* Types and macros for handling bitmaps with one bit per virtual interface.
93	*/
94	#define MAXVIFS 32
95	typedef u_long vifbitmap_t;
96	typedef u_short vifi_t; /* type of a vif index */
97	#define ALL_VIFS (vifi_t)-1
98
99	#define VIFM_SET(n, m) ((m) \|= (1 << (n)))
100	#define VIFM_CLR(n, m) ((m) &= ~(1 << (n)))
101	#define VIFM_ISSET(n, m) ((m) & (1 << (n)))
102	#define VIFM_CLRALL(m) ((m) = 0x00000000)
103	#define VIFM_COPY(mfrom, mto) ((mto) = (mfrom))
104	#define VIFM_SAME(m1, m2) ((m1) == (m2))
105
106
107	/*
108	* Argument structure for MRT_ADD_VIF.
109	* (MRT_DEL_VIF takes a single vifi_t argument.)
110	*/
111	struct vifctl {
112	vifi_t vifc_vifi; /* the index of the vif to be added */
113	u_char vifc_flags; /* VIFF_ flags defined below */
114	u_char vifc_threshold; /* min ttl required to forward on vif */
115	u_int vifc_rate_limit; /* max rate */
116	struct in_addr vifc_lcl_addr; /* local interface address */
117	struct in_addr vifc_rmt_addr; /* remote address (tunnels only) */
118	};
119
120	#define VIFF_TUNNEL 0x1 /* vif represents a tunnel end-point */
121	#define VIFF_SRCRT 0x2 /* tunnel uses IP source routing */
122
123	/*
124	* Argument structure for MRT_ADD_MFC and MRT_DEL_MFC
125	* (mfcc_tos to be added at a future point)
126	*/
127	struct mfcctl {
128	struct in_addr mfcc_origin; /* ip origin of mcasts */
129	struct in_addr mfcc_mcastgrp; /* multicast group associated*/
130	vifi_t mfcc_parent; /* incoming vif */
131	u_char mfcc_ttls[MAXVIFS]; /* forwarding ttls on vifs */
132	};
133
134	/*
135	* The kernel's multicast routing statistics.
136	*/
137	struct mrtstat {
138	u_long mrts_mfc_lookups; /* # forw. cache hash table hits */
139	u_long mrts_mfc_misses; /* # forw. cache hash table misses */
140	u_long mrts_upcalls; /* # calls to mrouted */
141	u_long mrts_no_route; /* no route for packet's origin */
142	u_long mrts_bad_tunnel; /* malformed tunnel options */
143	u_long mrts_cant_tunnel; /* no room for tunnel options */
144	u_long mrts_wrong_if; /* arrived on wrong interface */
145	u_long mrts_upq_ovflw; /* upcall Q overflow */
146	u_long mrts_cache_cleanups; /* # entries with no upcalls */
147	u_long mrts_drop_sel; /* pkts dropped selectively */
148	u_long mrts_q_overflow; /* pkts dropped - Q overflow */
149	u_long mrts_pkt2large; /* pkts dropped - size > BKT SIZE */
150	u_long mrts_upq_sockfull; /* upcalls dropped - socket full */
151	};
152
153	/*
154	* Argument structure used by mrouted to get src-grp pkt counts
155	*/
156	struct sioc_sg_req {
157	struct in_addr src;
158	struct in_addr grp;
159	u_long pktcnt;
160	u_long bytecnt;
161	u_long wrong_if;
162	};
163
164	/*
165	* Argument structure used by mrouted to get vif pkt counts
166	*/
167	struct sioc_vif_req {
168	vifi_t vifi; /* vif number */
169	u_long icount; /* Input packet count on vif */
170	u_long ocount; /* Output packet count on vif */
171	u_long ibytes; /* Input byte count on vif */
172	u_long obytes; /* Output byte count on vif */
173	};
174
175
176	/*
177	* The kernel's virtual-interface structure.
178	*/
179	struct vif {
180	u_char v_flags; /* VIFF_ flags defined above */
181	u_char v_threshold; /* min ttl required to forward on vif*/
182	u_int v_rate_limit; /* max rate */
183	struct tbf v_tbf; / token bucket structure at intf. */
184	struct in_addr v_lcl_addr; /* local interface address */
185	struct in_addr v_rmt_addr; /* remote address (tunnels only) */
186	struct ifnet v_ifp; / pointer to interface */
187	u_long v_pkt_in; /* # pkts in on interface */
188	u_long v_pkt_out; /* # pkts out on interface */
189	u_long v_bytes_in; /* # bytes in on interface */
190	u_long v_bytes_out; /* # bytes out on interface */
191	struct route v_route; /* cached route if this is a tunnel */
192	u_int v_rsvp_on; /* RSVP listening on this vif */
193	struct socket v_rsvpd; / RSVP daemon socket */
194	};
195
196	/*
197	* The kernel's multicast forwarding cache entry structure
198	* (A field for the type of service (mfc_tos) is to be added
199	* at a future point)
200	*/
201	struct mfc {
202	struct in_addr mfc_origin; /* IP origin of mcasts */
203	struct in_addr mfc_mcastgrp; /* multicast group associated*/
204	vifi_t mfc_parent; /* incoming vif */
205	u_char mfc_ttls[MAXVIFS]; /* forwarding ttls on vifs */
206	u_long mfc_pkt_cnt; /* pkt count for src-grp */
207	u_long mfc_byte_cnt; /* byte count for src-grp */
208	u_long mfc_wrong_if; /* wrong if for src-grp */
209	int mfc_expire; /* time to clean entry up */
210	struct timeval mfc_last_assert; /* last time I sent an assert*/
211	struct rtdetq mfc_stall; / q of packets awaiting mfc */
212	struct mfc mfc_next; / next mfc entry */
213	};
214
215	/*
216	* Struct used to communicate from kernel to multicast router
217	* note the convenient similarity to an IP packet
218	*/
219	struct igmpmsg {
220	u_long unused1;
221	u_long unused2;
222	u_char im_msgtype; /* what type of message */
223	#define IGMPMSG_NOCACHE 1
224	#define IGMPMSG_WRONGVIF 2
225	u_char im_mbz; /* must be zero */
226	u_char im_vif; /* vif rec'd on */
227	u_char unused3;
228	struct in_addr im_src, im_dst;
229	};
230
231	/*
232	* Argument structure used for pkt info. while upcall is made
233	*/
234	struct rtdetq {
235	struct mbuf m; / A copy of the packet */
236	struct ifnet ifp; / Interface pkt came in on */
237	vifi_t xmt_vif; /* Saved copy of imo_multicast_vif */
238	#if UPCALL_TIMING
239	struct timeval t; /* Timestamp */
240	#endif /* UPCALL_TIMING */
241	struct rtdetq next; / Next in list of packets */
242	};
243
244	#define MFCTBLSIZ 256
245	#if (MFCTBLSIZ & (MFCTBLSIZ - 1)) == 0 /* from sys:route.h */
246	#define MFCHASHMOD(h) ((h) & (MFCTBLSIZ - 1))
247	#else
248	#define MFCHASHMOD(h) ((h) % MFCTBLSIZ)
249	#endif
250
251	#define MAX_UPQ 4 /* max. no of pkts in upcall Q */
252
253	/*
254	* Token Bucket filter code
255	*/
256	#define MAX_BKT_SIZE 10000 /* 10K bytes size */
257	#define MAXQSIZE 10 /* max # of pkts in queue */
258
259	/*
260	* the token bucket filter at each vif
261	*/
262	struct tbf
263	{
264	struct timeval tbf_last_pkt_t; /* arr. time of last pkt */
265	u_long tbf_n_tok; /* no of tokens in bucket */
266	u_long tbf_q_len; /* length of queue at this vif */
267	u_long tbf_max_q_len; /* max. queue length */
268	struct mbuf tbf_q; / Packet queue */
269	struct mbuf tbf_t; / tail-insertion pointer */
270	};
271
272	#ifdef KERNEL
273
274	struct sockopt;
275
276	extern int (ip_mrouter_set) __P((struct socket , struct sockopt *));
277	extern int (ip_mrouter_get) __P((struct socket , struct sockopt *));
278	extern int (*ip_mrouter_done) __P((void));
279
280	#if MROUTING
281	extern int (*mrt_ioctl) __P((int, caddr_t));
282	#else
283	extern int (mrt_ioctl) __P((int, caddr_t, struct proc ));
284	#endif
285
286	#endif /* KERNEL */
287
288	#endif /* _NETINET_IP_MROUTE_H_ */