[apple/xnu.git] / bsd / netinet6 / ip6_mroute.h

/*
 * Copyright (c) 2008 Apple 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@
 */

/*	$FreeBSD: src/sys/netinet6/ip6_mroute.h,v 1.2.2.2 2001/07/03 11:01:53 ume Exp $	*/
/*	$KAME: ip6_mroute.h,v 1.17 2001/02/10 02:05:52 itojun 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_
#include <sys/appleapiopts.h>

/*
 * Multicast Routing set/getsockopt commands.
 */
#ifdef XNU_KERNEL_PRIVATE
#define MRT6_OINIT		100	/* initialize forwarder (omrt6msg) */
#endif /* XNU_KERNEL_PRIVATE */
#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) */

#ifdef __APPLE__
#define GET_TIME(t)	getmicrotime(&t)
#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)) == 0) ? ((x) / (y)) : (((x) / (y)) + 1))
#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 */
#if 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 XNU_KERNEL_PRIVATE
#if 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_int32_t	    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
#endif /* XNU_KERNEL_PRIVATE */

/*
 * 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(XNU_KERNEL_PRIVATE)
struct sioc_mif_req6_32 {
	mifi_t mifi;
	u_quad_t icount;
	u_quad_t ocount;
	u_quad_t ibytes;
	u_quad_t obytes;
} __attribute__((aligned(4), packed));

struct sioc_mif_req6_64 {
	mifi_t mifi;
	u_quad_t icount __attribute__((aligned(8)));
	u_quad_t ocount;
	u_quad_t ibytes;
	u_quad_t obytes;
} __attribute__((aligned(8)));
#endif /* XNU_KERNEL_PRIVATE */

#ifdef PRIVATE
/*
 * The kernel's multicast-interface structure.
 */
struct mif6 {
        u_char   	m6_flags;     	/* MIFF_ flags defined above         */
	u_int      	m6_rate_limit; 	/* max rate			     */
#if 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 */
#if 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)

#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 */

/*
 * 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 	    */
#if UPCALL_TIMING
    struct timeval	t;		/* Timestamp */
#endif /* UPCALL_TIMING */
    struct rtdetq	*next;
};
#endif /* _NETINET_IP_MROUTE_H_ */

#if MROUTING
#ifdef XNU_KERNEL_PRIVATE
extern struct mrt6stat mrt6stat;

extern int ip6_mrouter_set(struct socket *, struct sockopt *);
extern int ip6_mrouter_get(struct socket *, struct sockopt *);
extern int ip6_mrouter_done(void);
extern int mrt6_ioctl(u_long, caddr_t);
#endif /* XNU_KERNEL_PRIVATE */
#endif /* PRIVATE */
#endif

#endif /* !_NETINET6_IP6_MROUTE_H_ */
Commit	Line	Data
b0d623f7 A	1	/*
	2	* Copyright (c) 2008 Apple Inc. All rights reserved.
	3	*
	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
	5	*
	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
	24	* limitations under the License.
	25	*
	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
	27	*/
	28
9bccf70c A	29	/* $FreeBSD: src/sys/netinet6/ip6_mroute.h,v 1.2.2.2 2001/07/03 11:01:53 ume Exp $ */
9bccf70c A	30	/* $KAME: ip6_mroute.h,v 1.17 2001/02/10 02:05:52 itojun Exp $ */
1c79356b A	31
	32	/*
	33	* Copyright (C) 1998 WIDE Project.
	34	* All rights reserved.
	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. Neither the name of the project nor the names of its contributors
	45	* may be used to endorse or promote products derived from this software
	46	* without specific prior written permission.
	47	*
	48	* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
	49	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	50	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	51	* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
	52	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	53	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	54	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	55	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	56	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	57	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	58	* SUCH DAMAGE.
	59	*/
	60
	61	/* BSDI ip_mroute.h,v 2.5 1996/10/11 16:01:48 pjd Exp */
	62
	63	/*
	64	* Definitions for IP multicast forwarding.
	65	*
	66	* Written by David Waitzman, BBN Labs, August 1988.
	67	* Modified by Steve Deering, Stanford, February 1989.
	68	* Modified by Ajit Thyagarajan, PARC, August 1993.
	69	* Modified by Ajit Thyagarajan, PARC, August 1994.
	70	* Modified by Ahmed Helmy, USC, September 1996.
	71	*
	72	* MROUTING Revision: 1.2
	73	*/
	74
	75	#ifndef _NETINET6_IP6_MROUTE_H_
	76	#define _NETINET6_IP6_MROUTE_H_
9bccf70c	77	#include <sys/appleapiopts.h>
1c79356b A	78
	79	/*
	80	* Multicast Routing set/getsockopt commands.
	81	*/
6d2010ae	82	#ifdef XNU_KERNEL_PRIVATE
9bccf70c	83	#define MRT6_OINIT 100 /* initialize forwarder (omrt6msg) */
6d2010ae	84	#endif /* XNU_KERNEL_PRIVATE */
1c79356b A	85	#define MRT6_DONE 101 /* shut down forwarder */
	86	#define MRT6_ADD_MIF 102 /* add multicast interface */
	87	#define MRT6_DEL_MIF 103 /* delete multicast interface */
	88	#define MRT6_ADD_MFC 104 /* insert forwarding cache entry */
	89	#define MRT6_DEL_MFC 105 /* delete forwarding cache entry */
	90	#define MRT6_PIM 107 /* enable pim code */
9bccf70c	91	#define MRT6_INIT 108 /* initialize forwarder (mrt6msg) */
1c79356b	92
91447636 A	93	#ifdef __APPLE__
91447636 A	94	#define GET_TIME(t) getmicrotime(&t)
1c79356b A	95	#endif
	96
	97	/*
	98	* Types and macros for handling bitmaps with one bit per multicast interface.
	99	*/
	100	typedef u_short mifi_t; /* type of a mif index */
	101	#define MAXMIFS 64
	102
	103	#ifndef IF_SETSIZE
	104	#define IF_SETSIZE 256
	105	#endif
	106
9bccf70c	107	typedef u_int32_t if_mask;
1c79356b A	108	#define NIFBITS (sizeof(if_mask) * NBBY) /* bits per mask */
	109
	110	#ifndef howmany
b0d623f7	111	#define howmany(x, y) ((((x) % (y)) == 0) ? ((x) / (y)) : (((x) / (y)) + 1))
1c79356b A	112	#endif
	113
	114	typedef struct if_set {
9bccf70c	115	if_mask ifs_bits[howmany(IF_SETSIZE, NIFBITS)];
1c79356b A	116	} if_set;
	117
	118	#define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] \|= (1 << ((n) % NIFBITS)))
	119	#define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
	120	#define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
	121	#define IF_COPY(f, t) bcopy(f, t, sizeof(*(f)))
	122	#define IF_ZERO(p) bzero(p, sizeof(*(p)))
	123
	124	/*
	125	* Argument structure for MRT6_ADD_IF.
	126	*/
	127	struct mif6ctl {
	128	mifi_t mif6c_mifi; /* the index of the mif to be added */
	129	u_char mif6c_flags; /* MIFF_ flags defined below */
	130	u_short mif6c_pifi; /* the index of the physical IF */
	131	#if notyet
	132	u_int mif6c_rate_limit; /* max rate */
	133	#endif
	134	};
	135
	136	#define MIFF_REGISTER 0x1 /* mif represents a register end-point */
	137
	138	/*
	139	* Argument structure for MRT6_ADD_MFC and MRT6_DEL_MFC
	140	*/
	141	struct mf6cctl {
	142	struct sockaddr_in6 mf6cc_origin; /* IPv6 origin of mcasts */
	143	struct sockaddr_in6 mf6cc_mcastgrp; /* multicast group associated */
	144	mifi_t mf6cc_parent; /* incoming ifindex */
	145	struct if_set mf6cc_ifset; /* set of forwarding ifs */
	146	};
	147
	148	/*
	149	* The kernel's multicast routing statistics.
	150	*/
	151	struct mrt6stat {
	152	u_quad_t mrt6s_mfc_lookups; /* # forw. cache hash table hits */
	153	u_quad_t mrt6s_mfc_misses; /* # forw. cache hash table misses */
	154	u_quad_t mrt6s_upcalls; /* # calls to mrouted */
	155	u_quad_t mrt6s_no_route; /* no route for packet's origin */
	156	u_quad_t mrt6s_bad_tunnel; /* malformed tunnel options */
	157	u_quad_t mrt6s_cant_tunnel; /* no room for tunnel options */
	158	u_quad_t mrt6s_wrong_if; /* arrived on wrong interface */
	159	u_quad_t mrt6s_upq_ovflw; /* upcall Q overflow */
	160	u_quad_t mrt6s_cache_cleanups; /* # entries with no upcalls */
	161	u_quad_t mrt6s_drop_sel; /* pkts dropped selectively */
	162	u_quad_t mrt6s_q_overflow; /* pkts dropped - Q overflow */
	163	u_quad_t mrt6s_pkt2large; /* pkts dropped - size > BKT SIZE */
	164	u_quad_t mrt6s_upq_sockfull; /* upcalls dropped - socket full */
	165	};
	166
6d2010ae	167	#ifdef XNU_KERNEL_PRIVATE
9bccf70c	168	#if MRT6_OINIT
1c79356b A	169	/*
	170	* Struct used to communicate from kernel to multicast router
	171	* note the convenient similarity to an IPv6 header.
9bccf70c	172	* XXX old version, superseded by mrt6msg.
1c79356b	173	*/
9bccf70c	174	struct omrt6msg {
b0d623f7	175	u_int32_t unused1;
1c79356b	176	u_char im6_msgtype; /* what type of message */
9bccf70c A	177	#if 0
9bccf70c A	178	#define MRT6MSG_NOCACHE 1
1c79356b A	179	#define MRT6MSG_WRONGMIF 2
1c79356b A	180	#define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/
9bccf70c	181	#endif
1c79356b A	182	u_char im6_mbz; /* must be zero */
	183	u_char im6_mif; /* mif rec'd on */
	184	u_char unused2;
	185	struct in6_addr im6_src, im6_dst;
	186	};
9bccf70c	187	#endif
6d2010ae	188	#endif /* XNU_KERNEL_PRIVATE */
9bccf70c A	189
	190	/*
	191	* Structure used to communicate from kernel to multicast router.
	192	* We'll overlay the structure onto an MLD header (not an IPv6 header
	193	* like igmpmsg{} used for IPv4 implementation). This is because this
	194	* structure will be passed via an IPv6 raw socket, on which an application
	195	* will only receive the payload i.e. the data after the IPv6 header and all
	196	* the extension headers. (see Section 3 of draft-ietf-ipngwg-2292bis-01)
	197	*/
	198	struct mrt6msg {
	199	#define MRT6MSG_NOCACHE 1
	200	#define MRT6MSG_WRONGMIF 2
	201	#define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/
	202	u_char im6_mbz; /* must be zero */
	203	u_char im6_msgtype; /* what type of message */
	204	u_int16_t im6_mif; /* mif rec'd on */
	205	u_int32_t im6_pad; /* padding for 64bit arch */
	206	struct in6_addr im6_src, im6_dst;
	207	};
1c79356b A	208
	209	/*
	210	* Argument structure used by multicast routing daemon to get src-grp
	211	* packet counts
	212	*/
	213	struct sioc_sg_req6 {
	214	struct sockaddr_in6 src;
	215	struct sockaddr_in6 grp;
	216	u_quad_t pktcnt;
	217	u_quad_t bytecnt;
	218	u_quad_t wrong_if;
	219	};
	220
	221	/*
	222	* Argument structure used by mrouted to get mif pkt counts
	223	*/
	224	struct sioc_mif_req6 {
	225	mifi_t mifi; /* mif number */
	226	u_quad_t icount; /* Input packet count on mif */
	227	u_quad_t ocount; /* Output packet count on mif */
	228	u_quad_t ibytes; /* Input byte count on mif */
	229	u_quad_t obytes; /* Output byte count on mif */
	230	};
	231
6d2010ae	232	#if defined(XNU_KERNEL_PRIVATE)
b0d623f7 A	233	struct sioc_mif_req6_32 {
	234	mifi_t mifi;
	235	u_quad_t icount;
	236	u_quad_t ocount;
	237	u_quad_t ibytes;
	238	u_quad_t obytes;
	239	} __attribute__((aligned(4), packed));
	240
	241	struct sioc_mif_req6_64 {
	242	mifi_t mifi;
	243	u_quad_t icount __attribute__((aligned(8)));
	244	u_quad_t ocount;
	245	u_quad_t ibytes;
	246	u_quad_t obytes;
	247	} __attribute__((aligned(8)));
6d2010ae	248	#endif /* XNU_KERNEL_PRIVATE */
b0d623f7	249
91447636	250	#ifdef PRIVATE
1c79356b A	251	/*
	252	* The kernel's multicast-interface structure.
	253	*/
	254	struct mif6 {
	255	u_char m6_flags; /* MIFF_ flags defined above */
	256	u_int m6_rate_limit; /* max rate */
	257	#if notyet
	258	struct tbf m6_tbf; / token bucket structure at intf. */
	259	#endif
	260	struct in6_addr m6_lcl_addr; /* local interface address */
	261	struct ifnet m6_ifp; / pointer to interface */
	262	u_quad_t m6_pkt_in; /* # pkts in on interface */
	263	u_quad_t m6_pkt_out; /* # pkts out on interface */
	264	u_quad_t m6_bytes_in; /* # bytes in on interface */
	265	u_quad_t m6_bytes_out; /* # bytes out on interface */
	266	struct route_in6 m6_route;/* cached route if this is a tunnel */
	267	#if notyet
	268	u_int m6_rsvp_on; /* RSVP listening on this vif */
	269	struct socket m6_rsvpd; / RSVP daemon socket */
	270	#endif
	271	};
	272
	273	/*
	274	* The kernel's multicast forwarding cache entry structure
	275	*/
	276	struct mf6c {
	277	struct sockaddr_in6 mf6c_origin; /* IPv6 origin of mcasts */
	278	struct sockaddr_in6 mf6c_mcastgrp; /* multicast group associated*/
	279	mifi_t mf6c_parent; /* incoming IF */
	280	struct if_set mf6c_ifset; /* set of outgoing IFs */
	281
	282	u_quad_t mf6c_pkt_cnt; /* pkt count for src-grp */
	283	u_quad_t mf6c_byte_cnt; /* byte count for src-grp */
	284	u_quad_t mf6c_wrong_if; /* wrong if for src-grp */
	285	int mf6c_expire; /* time to clean entry up */
	286	struct timeval mf6c_last_assert; /* last time I sent an assert*/
	287	struct rtdetq mf6c_stall; / pkts waiting for route */
	288	struct mf6c mf6c_next; / hash table linkage */
	289	};
	290
	291	#define MF6C_INCOMPLETE_PARENT ((mifi_t)-1)
	292
91447636 A	293	#define MF6CTBLSIZ 256
	294	#if (MF6CTBLSIZ & (MF6CTBLSIZ - 1)) == 0 /* from sys:route.h */
	295	#define MF6CHASHMOD(h) ((h) & (MF6CTBLSIZ - 1))
	296	#else
	297	#define MF6CHASHMOD(h) ((h) % MF6CTBLSIZ)
	298	#endif
	299
	300	#define MAX_UPQ6 4 /* max. no of pkts in upcall Q */
	301
1c79356b A	302	/*
	303	* Argument structure used for pkt info. while upcall is made
	304	*/
	305	#ifndef _NETINET_IP_MROUTE_H_
	306	struct rtdetq { /* XXX: rtdetq is also defined in ip_mroute.h */
	307	struct mbuf m; / A copy of the packet */
	308	struct ifnet ifp; / Interface pkt came in on */
	309	#if UPCALL_TIMING
	310	struct timeval t; /* Timestamp */
	311	#endif /* UPCALL_TIMING */
	312	struct rtdetq *next;
	313	};
	314	#endif /* _NETINET_IP_MROUTE_H_ */
	315
b7266188	316	#if MROUTING
6d2010ae	317	#ifdef XNU_KERNEL_PRIVATE
91447636	318	extern struct mrt6stat mrt6stat;
1c79356b	319
b0d623f7 A	320	extern int ip6_mrouter_set(struct socket , struct sockopt );
	321	extern int ip6_mrouter_get(struct socket , struct sockopt );
	322	extern int ip6_mrouter_done(void);
	323	extern int mrt6_ioctl(u_long, caddr_t);
6d2010ae	324	#endif /* XNU_KERNEL_PRIVATE */
91447636	325	#endif /* PRIVATE */
b7266188	326	#endif
1c79356b A	327
1c79356b A	328	#endif /* !_NETINET6_IP6_MROUTE_H_ */