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ip6_mroute.h revision 1.3.8.1
      1  1.3.8.1  wrstuden /*	$NetBSD: ip6_mroute.h,v 1.3.8.1 1999/12/27 18:36:25 wrstuden Exp $	*/
      2      1.3   thorpej 
      3      1.2    itojun /*
      4      1.2    itojun  * Copyright (C) 1998 WIDE Project.
      5      1.2    itojun  * All rights reserved.
      6      1.2    itojun  *
      7      1.2    itojun  * Redistribution and use in source and binary forms, with or without
      8      1.2    itojun  * modification, are permitted provided that the following conditions
      9      1.2    itojun  * are met:
     10      1.2    itojun  * 1. Redistributions of source code must retain the above copyright
     11      1.2    itojun  *    notice, this list of conditions and the following disclaimer.
     12      1.2    itojun  * 2. Redistributions in binary form must reproduce the above copyright
     13      1.2    itojun  *    notice, this list of conditions and the following disclaimer in the
     14      1.2    itojun  *    documentation and/or other materials provided with the distribution.
     15      1.2    itojun  * 3. Neither the name of the project nor the names of its contributors
     16      1.2    itojun  *    may be used to endorse or promote products derived from this software
     17      1.2    itojun  *    without specific prior written permission.
     18      1.2    itojun  *
     19      1.2    itojun  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     20      1.2    itojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21      1.2    itojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22      1.2    itojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     23      1.2    itojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24      1.2    itojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25      1.2    itojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26      1.2    itojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27      1.2    itojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28      1.2    itojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29      1.2    itojun  * SUCH DAMAGE.
     30      1.2    itojun  */
     31      1.2    itojun 
     32      1.2    itojun /*	BSDI ip_mroute.h,v 2.5 1996/10/11 16:01:48 pjd Exp	*/
     33      1.2    itojun 
     34      1.2    itojun /*
     35      1.2    itojun  * Definitions for IP multicast forwarding.
     36      1.2    itojun  *
     37      1.2    itojun  * Written by David Waitzman, BBN Labs, August 1988.
     38      1.2    itojun  * Modified by Steve Deering, Stanford, February 1989.
     39      1.2    itojun  * Modified by Ajit Thyagarajan, PARC, August 1993.
     40      1.2    itojun  * Modified by Ajit Thyagarajan, PARC, August 1994.
     41      1.2    itojun  * Modified by Ahmed Helmy, USC, September 1996.
     42      1.2    itojun  *
     43      1.2    itojun  * MROUTING Revision: 1.2
     44      1.2    itojun  */
     45      1.2    itojun 
     46      1.2    itojun #ifndef _NETINET6_IP6_MROUTE_H_
     47      1.2    itojun #define _NETINET6_IP6_MROUTE_H_
     48      1.2    itojun 
     49      1.2    itojun /*
     50      1.2    itojun  * Multicast Routing set/getsockopt commands.
     51      1.2    itojun  */
     52      1.2    itojun #define MRT6_INIT		100	/* initialize forwarder */
     53      1.2    itojun #define MRT6_DONE		101	/* shut down forwarder */
     54      1.2    itojun #define MRT6_ADD_MIF		102	/* add multicast interface */
     55      1.2    itojun #define MRT6_DEL_MIF		103	/* delete multicast interface */
     56      1.2    itojun #define MRT6_ADD_MFC		104	/* insert forwarding cache entry */
     57      1.2    itojun #define MRT6_DEL_MFC		105	/* delete forwarding cache entry */
     58      1.2    itojun #define MRT6_PIM                107     /* enable pim code */
     59      1.2    itojun 
     60      1.2    itojun #if BSD >= 199103
     61      1.2    itojun #define GET_TIME(t)	microtime(&t)
     62      1.2    itojun #elif defined(sun)
     63      1.2    itojun #define GET_TIME(t)	uniqtime(&t)
     64      1.2    itojun #else
     65      1.2    itojun #define GET_TIME(t)	((t) = time)
     66      1.2    itojun #endif
     67      1.2    itojun 
     68      1.2    itojun /*
     69      1.2    itojun  * Types and macros for handling bitmaps with one bit per multicast interface.
     70      1.2    itojun  */
     71      1.2    itojun typedef u_short mifi_t;		/* type of a mif index */
     72      1.2    itojun #define MAXMIFS		64
     73      1.2    itojun 
     74      1.2    itojun #ifndef	IF_SETSIZE
     75      1.2    itojun #define	IF_SETSIZE	256
     76      1.2    itojun #endif
     77      1.2    itojun 
     78      1.2    itojun typedef	long	if_mask;
     79      1.2    itojun #define	NIFBITS	(sizeof(if_mask) * NBBY)	/* bits per mask */
     80      1.2    itojun 
     81      1.2    itojun #ifndef howmany
     82      1.2    itojun #define	howmany(x, y)	(((x) + ((y) - 1)) / (y))
     83      1.2    itojun #endif
     84      1.2    itojun 
     85      1.2    itojun typedef	struct if_set {
     86      1.2    itojun 	fd_mask	ifs_bits[howmany(IF_SETSIZE, NIFBITS)];
     87      1.2    itojun } if_set;
     88      1.2    itojun 
     89      1.2    itojun #define	IF_SET(n, p)	((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))
     90      1.2    itojun #define	IF_CLR(n, p)	((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
     91      1.2    itojun #define	IF_ISSET(n, p)	((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
     92      1.2    itojun #define	IF_COPY(f, t)	bcopy(f, t, sizeof(*(f)))
     93      1.2    itojun #define	IF_ZERO(p)	bzero(p, sizeof(*(p)))
     94      1.2    itojun 
     95      1.2    itojun /*
     96      1.2    itojun  * Argument structure for MRT6_ADD_IF.
     97      1.2    itojun  */
     98      1.2    itojun struct mif6ctl {
     99      1.2    itojun 	mifi_t	    mif6c_mifi;	    	/* the index of the mif to be added  */
    100      1.2    itojun 	u_char	    mif6c_flags;     	/* MIFF_ flags defined below         */
    101      1.2    itojun 	u_short	    mif6c_pifi;		/* the index of the physical IF */
    102      1.2    itojun #ifdef notyet
    103      1.2    itojun 	u_int	    mif6c_rate_limit;    /* max rate           		     */
    104      1.2    itojun #endif
    105      1.2    itojun };
    106      1.2    itojun 
    107      1.2    itojun #define	MIFF_REGISTER	0x1	/* mif represents a register end-point */
    108      1.2    itojun 
    109      1.2    itojun /*
    110      1.2    itojun  * Argument structure for MRT6_ADD_MFC and MRT6_DEL_MFC
    111      1.2    itojun  */
    112      1.2    itojun struct mf6cctl {
    113      1.2    itojun 	struct sockaddr_in6 mf6cc_origin;	/* IPv6 origin of mcasts */
    114      1.2    itojun 	struct sockaddr_in6 mf6cc_mcastgrp; /* multicast group associated */
    115      1.2    itojun 	mifi_t		mf6cc_parent;	/* incoming ifindex */
    116      1.2    itojun 	struct if_set	mf6cc_ifset;	/* set of forwarding ifs */
    117      1.2    itojun };
    118      1.2    itojun 
    119      1.2    itojun /*
    120      1.2    itojun  * The kernel's multicast routing statistics.
    121      1.2    itojun  */
    122      1.2    itojun struct mrt6stat {
    123      1.2    itojun 	u_quad_t mrt6s_mfc_lookups;	/* # forw. cache hash table hits   */
    124      1.2    itojun 	u_quad_t mrt6s_mfc_misses;	/* # forw. cache hash table misses */
    125      1.2    itojun 	u_quad_t mrt6s_upcalls;		/* # calls to mrouted              */
    126      1.2    itojun 	u_quad_t mrt6s_no_route;	/* no route for packet's origin    */
    127      1.2    itojun 	u_quad_t mrt6s_bad_tunnel;	/* malformed tunnel options        */
    128      1.2    itojun 	u_quad_t mrt6s_cant_tunnel;	/* no room for tunnel options      */
    129      1.2    itojun 	u_quad_t mrt6s_wrong_if;	/* arrived on wrong interface	   */
    130      1.2    itojun 	u_quad_t mrt6s_upq_ovflw;	/* upcall Q overflow		   */
    131      1.2    itojun 	u_quad_t mrt6s_cache_cleanups;	/* # entries with no upcalls 	   */
    132      1.2    itojun 	u_quad_t mrt6s_drop_sel;     	/* pkts dropped selectively        */
    133      1.2    itojun 	u_quad_t mrt6s_q_overflow;    	/* pkts dropped - Q overflow       */
    134      1.2    itojun 	u_quad_t mrt6s_pkt2large;     	/* pkts dropped - size > BKT SIZE  */
    135      1.2    itojun 	u_quad_t mrt6s_upq_sockfull;	/* upcalls dropped - socket full   */
    136      1.2    itojun };
    137      1.2    itojun 
    138      1.2    itojun /*
    139      1.2    itojun  * Struct used to communicate from kernel to multicast router
    140      1.2    itojun  * note the convenient similarity to an IPv6 header.
    141      1.2    itojun  */
    142      1.2    itojun struct mrt6msg {
    143      1.2    itojun 	u_long	    unused1;
    144      1.2    itojun 	u_char	    im6_msgtype;		/* what type of message	    */
    145      1.2    itojun #define MRT6MSG_NOCACHE		1
    146      1.2    itojun #define MRT6MSG_WRONGMIF	2
    147      1.2    itojun #define MRT6MSG_WHOLEPKT	3		/* used for user level encap*/
    148      1.2    itojun 	u_char	    im6_mbz;			/* must be zero		    */
    149      1.2    itojun 	u_char	    im6_mif;			/* mif rec'd on		    */
    150      1.2    itojun 	u_char	    unused2;
    151      1.2    itojun 	struct in6_addr  im6_src, im6_dst;
    152      1.2    itojun };
    153      1.2    itojun 
    154      1.2    itojun /*
    155      1.2    itojun  * Argument structure used by multicast routing daemon to get src-grp
    156      1.2    itojun  * packet counts
    157      1.2    itojun  */
    158      1.2    itojun struct sioc_sg_req6 {
    159      1.2    itojun 	struct sockaddr_in6 src;
    160      1.2    itojun 	struct sockaddr_in6 grp;
    161  1.3.8.1  wrstuden 	u_quad_t pktcnt;
    162  1.3.8.1  wrstuden 	u_quad_t bytecnt;
    163  1.3.8.1  wrstuden 	u_quad_t wrong_if;
    164      1.2    itojun };
    165      1.2    itojun 
    166      1.2    itojun /*
    167      1.2    itojun  * Argument structure used by mrouted to get mif pkt counts
    168      1.2    itojun  */
    169      1.2    itojun struct sioc_mif_req6 {
    170      1.2    itojun 	mifi_t mifi;		/* mif number				*/
    171  1.3.8.1  wrstuden 	u_quad_t icount;	/* Input packet count on mif		*/
    172  1.3.8.1  wrstuden 	u_quad_t ocount;	/* Output packet count on mif		*/
    173  1.3.8.1  wrstuden 	u_quad_t ibytes;	/* Input byte count on mif		*/
    174  1.3.8.1  wrstuden 	u_quad_t obytes;	/* Output byte count on mif		*/
    175      1.2    itojun };
    176      1.2    itojun 
    177  1.3.8.1  wrstuden #ifdef _KERNEL
    178      1.2    itojun /*
    179      1.2    itojun  * The kernel's multicast-interface structure.
    180      1.2    itojun  */
    181      1.2    itojun struct mif6 {
    182      1.2    itojun         u_char   	m6_flags;     	/* MIFF_ flags defined above         */
    183      1.2    itojun 	u_int      	m6_rate_limit; 	/* max rate			     */
    184      1.2    itojun #ifdef notyet
    185      1.2    itojun 	struct tbf      *m6_tbf;      	/* token bucket structure at intf.   */
    186      1.2    itojun #endif
    187      1.2    itojun 	struct in6_addr	m6_lcl_addr;   	/* local interface address           */
    188      1.2    itojun 	struct ifnet    *m6_ifp;     	/* pointer to interface              */
    189  1.3.8.1  wrstuden 	u_quad_t	m6_pkt_in;	/* # pkts in on interface            */
    190  1.3.8.1  wrstuden 	u_quad_t	m6_pkt_out;	/* # pkts out on interface           */
    191  1.3.8.1  wrstuden 	u_quad_t	m6_bytes_in;	/* # bytes in on interface	     */
    192  1.3.8.1  wrstuden 	u_quad_t	m6_bytes_out;	/* # bytes out on interface	     */
    193      1.2    itojun 	struct route_in6 m6_route;/* cached route if this is a tunnel */
    194      1.2    itojun #ifdef notyet
    195      1.2    itojun 	u_int		m6_rsvp_on;	/* RSVP listening on this vif */
    196      1.2    itojun 	struct socket   *m6_rsvpd;	/* RSVP daemon socket */
    197      1.2    itojun #endif
    198      1.2    itojun };
    199      1.2    itojun 
    200      1.2    itojun /*
    201      1.2    itojun  * The kernel's multicast forwarding cache entry structure
    202      1.2    itojun  */
    203      1.2    itojun struct mf6c {
    204      1.2    itojun 	struct sockaddr_in6  mf6c_origin;	/* IPv6 origin of mcasts     */
    205      1.2    itojun 	struct sockaddr_in6  mf6c_mcastgrp;	/* multicast group associated*/
    206      1.2    itojun 	mifi_t	    	 mf6c_parent; 		/* incoming IF               */
    207      1.2    itojun 	struct if_set	 mf6c_ifset;		/* set of outgoing IFs */
    208      1.2    itojun 
    209  1.3.8.1  wrstuden 	u_quad_t    	mf6c_pkt_cnt;		/* pkt count for src-grp     */
    210  1.3.8.1  wrstuden 	u_quad_t    	mf6c_byte_cnt;		/* byte count for src-grp    */
    211  1.3.8.1  wrstuden 	u_quad_t    	mf6c_wrong_if;		/* wrong if for src-grp	     */
    212      1.2    itojun 	int	    	mf6c_expire;		/* time to clean entry up    */
    213      1.2    itojun 	struct timeval  mf6c_last_assert;	/* last time I sent an assert*/
    214      1.2    itojun 	struct rtdetq  *mf6c_stall;		/* pkts waiting for route */
    215      1.2    itojun 	struct mf6c    *mf6c_next;		/* hash table linkage */
    216      1.2    itojun };
    217      1.2    itojun 
    218      1.2    itojun #define MF6C_INCOMPLETE_PARENT ((mifi_t)-1)
    219      1.2    itojun 
    220      1.2    itojun /*
    221      1.2    itojun  * Argument structure used for pkt info. while upcall is made
    222      1.2    itojun  */
    223      1.2    itojun #ifndef _NETINET_IP_MROUTE_H_
    224      1.2    itojun struct rtdetq {		/* XXX: rtdetq is also defined in ip_mroute.h */
    225      1.2    itojun     struct mbuf 	*m;		/* A copy of the packet	    	    */
    226      1.2    itojun     struct ifnet	*ifp;		/* Interface pkt came in on 	    */
    227      1.2    itojun #ifdef UPCALL_TIMING
    228      1.2    itojun     struct timeval	t;		/* Timestamp */
    229      1.2    itojun #endif /* UPCALL_TIMING */
    230      1.2    itojun     struct rtdetq	*next;
    231      1.2    itojun };
    232      1.2    itojun #endif /* _NETINET_IP_MROUTE_H_ */
    233      1.2    itojun 
    234      1.2    itojun #define MF6CTBLSIZ	256
    235      1.2    itojun #if (MF6CTBLSIZ & (MF6CTBLSIZ - 1)) == 0	  /* from sys:route.h */
    236      1.2    itojun #define MF6CHASHMOD(h)	((h) & (MF6CTBLSIZ - 1))
    237      1.2    itojun #else
    238      1.2    itojun #define MF6CHASHMOD(h)	((h) % MF6CTBLSIZ)
    239      1.2    itojun #endif
    240      1.2    itojun 
    241      1.2    itojun #define MAX_UPQ6	4		/* max. no of pkts in upcall Q */
    242      1.2    itojun 
    243      1.2    itojun int	ip6_mrouter_set __P((int, struct socket *, struct mbuf *));
    244      1.2    itojun int	ip6_mrouter_get __P((int, struct socket *, struct mbuf **));
    245      1.2    itojun int	ip6_mrouter_done __P((void));
    246      1.2    itojun int	mrt6_ioctl __P((int, caddr_t));
    247  1.3.8.1  wrstuden #endif /* _KERNEL */
    248      1.2    itojun 
    249      1.2    itojun #endif /* !_NETINET6_IP6_MROUTE_H_ */
    250