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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [linux/] [include/] [netinet6/] [ip6_mroute.h] - Blame information for rev 207

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1 207 jeremybenn
/*      $FreeBSD: src/sys/netinet6/ip6_mroute.h,v 1.5 2002/04/19 04:46:23 suz Exp $     */
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/*      $KAME: ip6_mroute.h,v 1.19 2001/06/14 06:12:55 suz Exp $        */
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/*
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 * Copyright (C) 1998 WIDE Project.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the project nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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/*      BSDI ip_mroute.h,v 2.5 1996/10/11 16:01:48 pjd Exp      */
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/*
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 * Definitions for IP multicast forwarding.
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 *
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 * Written by David Waitzman, BBN Labs, August 1988.
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 * Modified by Steve Deering, Stanford, February 1989.
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 * Modified by Ajit Thyagarajan, PARC, August 1993.
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 * Modified by Ajit Thyagarajan, PARC, August 1994.
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 * Modified by Ahmed Helmy, USC, September 1996.
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 *
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 * MROUTING Revision: 1.2
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 */
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#ifndef _NETINET6_IP6_MROUTE_H_
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#define _NETINET6_IP6_MROUTE_H_
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/*
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 * Multicast Routing set/getsockopt commands.
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 */
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#ifdef _KERNEL
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#define MRT6_OINIT              100     /* initialize forwarder (omrt6msg) */
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#endif
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#define MRT6_DONE               101     /* shut down forwarder */
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#define MRT6_ADD_MIF            102     /* add multicast interface */
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#define MRT6_DEL_MIF            103     /* delete multicast interface */
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#define MRT6_ADD_MFC            104     /* insert forwarding cache entry */
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#define MRT6_DEL_MFC            105     /* delete forwarding cache entry */
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#define MRT6_PIM                107     /* enable pim code */
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#define MRT6_INIT               108     /* initialize forwarder (mrt6msg) */
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#if BSD >= 199103
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#define GET_TIME(t)     microtime(&t)
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#elif defined(sun)
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#define GET_TIME(t)     uniqtime(&t)
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#else
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#define GET_TIME(t)     ((t) = time)
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#endif
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/*
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 * Types and macros for handling bitmaps with one bit per multicast interface.
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 */
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typedef u_short mifi_t;         /* type of a mif index */
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#define MAXMIFS         64
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#ifndef IF_SETSIZE
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#define IF_SETSIZE      256
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#endif
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typedef u_int32_t       if_mask;
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#define NIFBITS (sizeof(if_mask) * NBBY)        /* bits per mask */
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#ifndef howmany
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#define howmany(x, y)   (((x) + ((y) - 1)) / (y))
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#endif
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typedef struct if_set {
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        if_mask ifs_bits[howmany(IF_SETSIZE, NIFBITS)];
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} if_set;
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#define IF_SET(n, p)    ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))
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#define IF_CLR(n, p)    ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
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#define IF_ISSET(n, p)  ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
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#define IF_COPY(f, t)   bcopy(f, t, sizeof(*(f)))
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#define IF_ZERO(p)      bzero(p, sizeof(*(p)))
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/*
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 * Argument structure for MRT6_ADD_IF.
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 */
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struct mif6ctl {
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        mifi_t      mif6c_mifi;         /* the index of the mif to be added  */
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        u_char      mif6c_flags;        /* MIFF_ flags defined below         */
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        u_short     mif6c_pifi;         /* the index of the physical IF */
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#ifdef notyet
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        u_int       mif6c_rate_limit;    /* max rate                         */
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#endif
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};
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#define MIFF_REGISTER   0x1     /* mif represents a register end-point */
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/*
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 * Argument structure for MRT6_ADD_MFC and MRT6_DEL_MFC
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 */
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struct mf6cctl {
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        struct sockaddr_in6 mf6cc_origin;       /* IPv6 origin of mcasts */
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        struct sockaddr_in6 mf6cc_mcastgrp; /* multicast group associated */
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        mifi_t          mf6cc_parent;   /* incoming ifindex */
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        struct if_set   mf6cc_ifset;    /* set of forwarding ifs */
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};
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/*
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 * The kernel's multicast routing statistics.
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 */
126
struct mrt6stat {
127
        u_quad_t mrt6s_mfc_lookups;     /* # forw. cache hash table hits   */
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        u_quad_t mrt6s_mfc_misses;      /* # forw. cache hash table misses */
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        u_quad_t mrt6s_upcalls;         /* # calls to mrouted              */
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        u_quad_t mrt6s_no_route;        /* no route for packet's origin    */
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        u_quad_t mrt6s_bad_tunnel;      /* malformed tunnel options        */
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        u_quad_t mrt6s_cant_tunnel;     /* no room for tunnel options      */
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        u_quad_t mrt6s_wrong_if;        /* arrived on wrong interface      */
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        u_quad_t mrt6s_upq_ovflw;       /* upcall Q overflow               */
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        u_quad_t mrt6s_cache_cleanups;  /* # entries with no upcalls       */
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        u_quad_t mrt6s_drop_sel;        /* pkts dropped selectively        */
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        u_quad_t mrt6s_q_overflow;      /* pkts dropped - Q overflow       */
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        u_quad_t mrt6s_pkt2large;       /* pkts dropped - size > BKT SIZE  */
139
        u_quad_t mrt6s_upq_sockfull;    /* upcalls dropped - socket full   */
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};
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142
#ifdef MRT6_OINIT
143
/*
144
 * Struct used to communicate from kernel to multicast router
145
 * note the convenient similarity to an IPv6 header.
146
 * XXX old version, superseded by mrt6msg.
147
 */
148
struct omrt6msg {
149
        u_long      unused1;
150
        u_char      im6_msgtype;                /* what type of message     */
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#if 0
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#define MRT6MSG_NOCACHE 1
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#define MRT6MSG_WRONGMIF        2
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#define MRT6MSG_WHOLEPKT        3               /* used for user level encap*/
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#endif
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        u_char      im6_mbz;                    /* must be zero             */
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        u_char      im6_mif;                    /* mif rec'd on             */
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        u_char      unused2;
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        struct in6_addr  im6_src, im6_dst;
160
};
161
#endif
162
 
163
/*
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 * Structure used to communicate from kernel to multicast router.
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 * We'll overlay the structure onto an MLD header (not an IPv6 header
166
 * like igmpmsg{} used for IPv4 implementation). This is because this
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 * structure will be passed via an IPv6 raw socket, on which an application
168
 * will only receive the payload i.e. the data after the IPv6 header and all
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 * the extension headers. (see Section 3 of draft-ietf-ipngwg-2292bis-01)
170
 */
171
struct mrt6msg {
172
#define MRT6MSG_NOCACHE         1
173
#define MRT6MSG_WRONGMIF        2
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#define MRT6MSG_WHOLEPKT        3               /* used for user level encap*/
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        u_char      im6_mbz;                    /* must be zero             */
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        u_char      im6_msgtype;                /* what type of message     */
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        u_int16_t   im6_mif;                    /* mif rec'd on             */
178
        u_int32_t   im6_pad;                    /* padding for 64bit arch   */
179
        struct in6_addr  im6_src, im6_dst;
180
};
181
 
182
/*
183
 * Argument structure used by multicast routing daemon to get src-grp
184
 * packet counts
185
 */
186
struct sioc_sg_req6 {
187
        struct sockaddr_in6 src;
188
        struct sockaddr_in6 grp;
189
        u_quad_t pktcnt;
190
        u_quad_t bytecnt;
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        u_quad_t wrong_if;
192
};
193
 
194
/*
195
 * Argument structure used by mrouted to get mif pkt counts
196
 */
197
struct sioc_mif_req6 {
198
        mifi_t mifi;            /* mif number                           */
199
        u_quad_t icount;        /* Input packet count on mif            */
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        u_quad_t ocount;        /* Output packet count on mif           */
201
        u_quad_t ibytes;        /* Input byte count on mif              */
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        u_quad_t obytes;        /* Output byte count on mif             */
203
};
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205
#if defined(_KERNEL) || defined(KERNEL)
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/*
207
 * The kernel's multicast-interface structure.
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 */
209
struct mif6 {
210
        u_char          m6_flags;       /* MIFF_ flags defined above         */
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        u_int           m6_rate_limit;  /* max rate                          */
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#ifdef notyet
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        struct tbf      *m6_tbf;        /* token bucket structure at intf.   */
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#endif
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        struct in6_addr m6_lcl_addr;    /* local interface address           */
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        struct ifnet    *m6_ifp;        /* pointer to interface              */
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        u_quad_t        m6_pkt_in;      /* # pkts in on interface            */
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        u_quad_t        m6_pkt_out;     /* # pkts out on interface           */
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        u_quad_t        m6_bytes_in;    /* # bytes in on interface           */
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        u_quad_t        m6_bytes_out;   /* # bytes out on interface          */
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        struct route_in6 m6_route;/* cached route if this is a tunnel */
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#ifdef notyet
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        u_int           m6_rsvp_on;     /* RSVP listening on this vif */
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        struct socket   *m6_rsvpd;      /* RSVP daemon socket */
225
#endif
226
};
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/*
229
 * The kernel's multicast forwarding cache entry structure
230
 */
231
struct mf6c {
232
        struct sockaddr_in6  mf6c_origin;       /* IPv6 origin of mcasts     */
233
        struct sockaddr_in6  mf6c_mcastgrp;     /* multicast group associated*/
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        mifi_t           mf6c_parent;           /* incoming IF               */
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        struct if_set    mf6c_ifset;            /* set of outgoing IFs */
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        u_quad_t        mf6c_pkt_cnt;           /* pkt count for src-grp     */
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        u_quad_t        mf6c_byte_cnt;          /* byte count for src-grp    */
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        u_quad_t        mf6c_wrong_if;          /* wrong if for src-grp      */
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        int             mf6c_expire;            /* time to clean entry up    */
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        struct timeval  mf6c_last_assert;       /* last time I sent an assert*/
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        struct rtdetq  *mf6c_stall;             /* pkts waiting for route */
243
        struct mf6c    *mf6c_next;              /* hash table linkage */
244
};
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246
#define MF6C_INCOMPLETE_PARENT ((mifi_t)-1)
247
 
248
/*
249
 * Argument structure used for pkt info. while upcall is made
250
 */
251
#ifndef _NETINET_IP_MROUTE_H_
252
struct rtdetq {         /* XXX: rtdetq is also defined in ip_mroute.h */
253
    struct mbuf         *m;             /* A copy of the packet             */
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    struct ifnet        *ifp;           /* Interface pkt came in on         */
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#ifdef UPCALL_TIMING
256
    struct timeval      t;              /* Timestamp */
257
#endif /* UPCALL_TIMING */
258
    struct rtdetq       *next;
259
};
260
#endif /* _NETINET_IP_MROUTE_H_ */
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262
#define MF6CTBLSIZ      256
263
#if (MF6CTBLSIZ & (MF6CTBLSIZ - 1)) == 0          /* from sys:route.h */
264
#define MF6CHASHMOD(h)  ((h) & (MF6CTBLSIZ - 1))
265
#else
266
#define MF6CHASHMOD(h)  ((h) % MF6CTBLSIZ)
267
#endif
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269
#define MAX_UPQ6        4               /* max. no of pkts in upcall Q */
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271
int     ip6_mrouter_set __P((struct socket *so, struct sockopt *sopt));
272
int     ip6_mrouter_get __P((struct socket *so, struct sockopt *sopt));
273
int     ip6_mrouter_done __P((void));
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int     mrt6_ioctl __P((int, caddr_t));
275
#endif /* _KERNEL */
276
 
277
#endif /* !_NETINET6_IP6_MROUTE_H_ */

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