| 1 | /* Modified for gcc/os2 by bird 2003
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| 2 | *
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| 3 | * Copyright (c) 1989 Stephen Deering.
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| 4 | * Copyright (c) 1992, 1993
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| 5 | * The Regents of the University of California. All rights reserved.
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| 6 | *
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| 7 | * This code is derived from software contributed to Berkeley by
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| 8 | * Stephen Deering of Stanford University.
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| 9 | *
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| 10 | * Redistribution and use in source and binary forms, with or without
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| 11 | * modification, are permitted provided that the following conditions
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| 12 | * are met:
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| 13 | * 1. Redistributions of source code must retain the above copyright
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| 14 | * notice, this list of conditions and the following disclaimer.
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright
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| 16 | * notice, this list of conditions and the following disclaimer in the
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| 17 | * documentation and/or other materials provided with the distribution.
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| 18 | * 3. All advertising materials mentioning features or use of this software
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| 19 | * must display the following acknowledgement:
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| 20 | * This product includes software developed by the University of
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| 21 | * California, Berkeley and its contributors.
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| 22 | * 4. Neither the name of the University nor the names of its contributors
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| 23 | * may be used to endorse or promote products derived from this software
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| 24 | * without specific prior written permission.
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| 25 | *
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| 26 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 29 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 30 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 36 | * SUCH DAMAGE.
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| 37 | *
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| 38 | * @(#)ip_mroute.h 8.1 (Berkeley) 6/10/93
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| 39 | * $FreeBSD: src/sys/netinet/ip_mroute.h,v 1.17.2.2 2002/11/20 23:20:55 luigi Exp $
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| 40 | */
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| 41 |
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| 42 | #ifndef _NETINET_IP_MROUTE_H_
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| 43 | #define _NETINET_IP_MROUTE_H_
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| 44 | #ifndef TCPV40HDRS
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| 45 |
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| 46 | /*
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| 47 | * Definitions for IP multicast forwarding.
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| 48 | *
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| 49 | * Written by David Waitzman, BBN Labs, August 1988.
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| 50 | * Modified by Steve Deering, Stanford, February 1989.
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| 51 | * Modified by Ajit Thyagarajan, PARC, August 1993.
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| 52 | * Modified by Ajit Thyagarajan, PARC, August 1994.
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| 53 | *
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| 54 | * MROUTING Revision: 3.3.1.3
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| 55 | */
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| 56 |
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| 57 |
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| 58 | /*
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| 59 | * Multicast Routing set/getsockopt commands.
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| 60 | */
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| 61 | #if 1 /* not on OS/2 - but let's include it anyway. */
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| 62 | #define MRT_INIT 100 /* initialize forwarder */
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| 63 | #define MRT_DONE 101 /* shut down forwarder */
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| 64 | #define MRT_ADD_VIF 102 /* create virtual interface */
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| 65 | #define MRT_DEL_VIF 103 /* delete virtual interface */
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| 66 | #define MRT_ADD_MFC 104 /* insert forwarding cache entry */
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| 67 | #define MRT_DEL_MFC 105 /* delete forwarding cache entry */
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| 68 | #define MRT_VERSION 106 /* get kernel version number */
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| 69 | #define MRT_ASSERT 107 /* enable PIM assert processing */
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| 70 | #if 0
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| 71 | #define GET_TIME(t) microtime(&t)
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| 72 | #endif
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| 73 | #endif
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| 74 |
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| 75 |
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| 76 | #if 1 /* OS2 only? It's aliases of the above defs it seems... */
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| 77 | /*
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| 78 | * DVMRP-specific setsockopt commands.
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| 79 | */
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| 80 | #define DVMRP_INIT 100
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| 81 | #define DVMRP_DONE 101
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| 82 | #define DVMRP_ADD_VIF 102
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| 83 | #define DVMRP_DEL_VIF 103
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| 84 | #define DVMRP_ADD_LGRP 104
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| 85 | #define DVMRP_DEL_LGRP 105
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| 86 | #define DVMRP_ADD_MRT 106
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| 87 | #define DVMRP_DEL_MRT 107
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| 88 | #endif
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| 89 |
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| 90 |
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| 91 |
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| 92 | /*
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| 93 | * Types and macros for handling bitmaps with one bit per virtual interface.
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| 94 | */
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| 95 | #define MAXVIFS 32
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| 96 | typedef u_long vifbitmap_t;
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| 97 | typedef u_short vifi_t; /* type of a vif index */
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| 98 | #if 0 /* no on OS2 */
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| 99 | #define ALL_VIFS (vifi_t)-1
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| 100 | #endif
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| 101 |
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| 102 | #define VIFM_SET(n, m) ((m) |= (1 << (n)))
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| 103 | #define VIFM_CLR(n, m) ((m) &= ~(1 << (n)))
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| 104 | #define VIFM_ISSET(n, m) ((m) & (1 << (n)))
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| 105 | #define VIFM_CLRALL(m) ((m) = 0x00000000)
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| 106 | #define VIFM_COPY(mfrom, mto) ((mto) = (mfrom))
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| 107 | #define VIFM_SAME(m1, m2) ((m1) == (m2))
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| 108 |
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| 109 |
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| 110 | /*
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| 111 | * Argument structure for MRT_ADD_VIF.
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| 112 | * (MRT_DEL_VIF takes a single vifi_t argument.)
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| 113 | */
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| 114 | #pragma pack(1) /* OS2 paranoia */
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| 115 | struct vifctl {
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| 116 | vifi_t vifc_vifi; /* the index of the vif to be added */
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| 117 | u_char vifc_flags; /* VIFF_ flags defined below */
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| 118 | u_char vifc_threshold; /* min ttl required to forward on vif */
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| 119 | #if 0 /* not on OS/2 */
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| 120 | u_int vifc_rate_limit; /* max rate */
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| 121 | #endif
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| 122 | struct in_addr vifc_lcl_addr; /* local interface address */
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| 123 | struct in_addr vifc_rmt_addr; /* remote address (tunnels only) */
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| 124 | };
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| 125 | #pragma pack()
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| 126 |
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| 127 | #define VIFF_TUNNEL 0x1 /* vif represents a tunnel end-point */
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| 128 | #if 0 /* no on OS/2 */
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| 129 | #define VIFF_SRCRT 0x2 /* tunnel uses IP source routing */
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| 130 |
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| 131 | /*
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| 132 | * Argument structure for MRT_ADD_MFC and MRT_DEL_MFC
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| 133 | * (mfcc_tos to be added at a future point)
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| 134 | */
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| 135 | struct mfcctl {
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| 136 | struct in_addr mfcc_origin; /* ip origin of mcasts */
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| 137 | struct in_addr mfcc_mcastgrp; /* multicast group associated*/
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| 138 | vifi_t mfcc_parent; /* incoming vif */
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| 139 | u_char mfcc_ttls[MAXVIFS]; /* forwarding ttls on vifs */
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| 140 | };
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| 141 |
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| 142 | /*
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| 143 | * The kernel's multicast routing statistics.
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| 144 | */
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| 145 | struct mrtstat {
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| 146 | u_long mrts_mfc_lookups; /* # forw. cache hash table hits */
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| 147 | u_long mrts_mfc_misses; /* # forw. cache hash table misses */
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| 148 | u_long mrts_upcalls; /* # calls to mrouted */
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| 149 | u_long mrts_no_route; /* no route for packet's origin */
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| 150 | u_long mrts_bad_tunnel; /* malformed tunnel options */
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| 151 | u_long mrts_cant_tunnel; /* no room for tunnel options */
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| 152 | u_long mrts_wrong_if; /* arrived on wrong interface */
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| 153 | u_long mrts_upq_ovflw; /* upcall Q overflow */
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| 154 | u_long mrts_cache_cleanups; /* # entries with no upcalls */
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| 155 | u_long mrts_drop_sel; /* pkts dropped selectively */
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| 156 | u_long mrts_q_overflow; /* pkts dropped - Q overflow */
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| 157 | u_long mrts_pkt2large; /* pkts dropped - size > BKT SIZE */
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| 158 | u_long mrts_upq_sockfull; /* upcalls dropped - socket full */
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| 159 | };
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| 160 |
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| 161 | /*
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| 162 | * Argument structure used by mrouted to get src-grp pkt counts
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| 163 | */
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| 164 | struct sioc_sg_req {
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| 165 | struct in_addr src;
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| 166 | struct in_addr grp;
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| 167 | u_long pktcnt;
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| 168 | u_long bytecnt;
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| 169 | u_long wrong_if;
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| 170 | };
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| 171 |
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| 172 | /*
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| 173 | * Argument structure used by mrouted to get vif pkt counts
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| 174 | */
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| 175 | struct sioc_vif_req {
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| 176 | vifi_t vifi; /* vif number */
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| 177 | u_long icount; /* Input packet count on vif */
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| 178 | u_long ocount; /* Output packet count on vif */
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| 179 | u_long ibytes; /* Input byte count on vif */
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| 180 | u_long obytes; /* Output byte count on vif */
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| 181 | };
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| 182 |
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| 183 |
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| 184 | /*
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| 185 | * The kernel's virtual-interface structure.
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| 186 | */
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| 187 | struct vif {
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| 188 | u_char v_flags; /* VIFF_ flags defined above */
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| 189 | u_char v_threshold; /* min ttl required to forward on vif*/
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| 190 | u_int v_rate_limit; /* max rate */
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| 191 | struct tbf *v_tbf; /* token bucket structure at intf. */
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| 192 | struct in_addr v_lcl_addr; /* local interface address */
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| 193 | struct in_addr v_rmt_addr; /* remote address (tunnels only) */
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| 194 | struct ifnet *v_ifp; /* pointer to interface */
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| 195 | u_long v_pkt_in; /* # pkts in on interface */
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| 196 | u_long v_pkt_out; /* # pkts out on interface */
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| 197 | u_long v_bytes_in; /* # bytes in on interface */
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| 198 | u_long v_bytes_out; /* # bytes out on interface */
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| 199 | struct route v_route; /* cached route if this is a tunnel */
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| 200 | u_int v_rsvp_on; /* RSVP listening on this vif */
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| 201 | struct socket *v_rsvpd; /* RSVP daemon socket */
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| 202 | };
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| 203 |
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| 204 | /*
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| 205 | * The kernel's multicast forwarding cache entry structure
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| 206 | * (A field for the type of service (mfc_tos) is to be added
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| 207 | * at a future point)
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| 208 | */
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| 209 | struct mfc {
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| 210 | struct in_addr mfc_origin; /* IP origin of mcasts */
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| 211 | struct in_addr mfc_mcastgrp; /* multicast group associated*/
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| 212 | vifi_t mfc_parent; /* incoming vif */
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| 213 | u_char mfc_ttls[MAXVIFS]; /* forwarding ttls on vifs */
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| 214 | u_long mfc_pkt_cnt; /* pkt count for src-grp */
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| 215 | u_long mfc_byte_cnt; /* byte count for src-grp */
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| 216 | u_long mfc_wrong_if; /* wrong if for src-grp */
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| 217 | int mfc_expire; /* time to clean entry up */
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| 218 | struct timeval mfc_last_assert; /* last time I sent an assert*/
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| 219 | struct rtdetq *mfc_stall; /* q of packets awaiting mfc */
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| 220 | struct mfc *mfc_next; /* next mfc entry */
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| 221 | };
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| 222 |
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| 223 | /*
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| 224 | * Struct used to communicate from kernel to multicast router
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| 225 | * note the convenient similarity to an IP packet
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| 226 | */
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