ip6_mroute.h revision 1.1.2.2
1 /* 2 * Copyright (C) 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* BSDI ip_mroute.h,v 2.5 1996/10/11 16:01:48 pjd Exp */ 31 32 /* 33 * Definitions for IP multicast forwarding. 34 * 35 * Written by David Waitzman, BBN Labs, August 1988. 36 * Modified by Steve Deering, Stanford, February 1989. 37 * Modified by Ajit Thyagarajan, PARC, August 1993. 38 * Modified by Ajit Thyagarajan, PARC, August 1994. 39 * Modified by Ahmed Helmy, USC, September 1996. 40 * 41 * MROUTING Revision: 1.2 42 */ 43 44 #ifndef _NETINET6_IP6_MROUTE_H_ 45 #define _NETINET6_IP6_MROUTE_H_ 46 47 /* 48 * Multicast Routing set/getsockopt commands. 49 */ 50 #define MRT6_INIT 100 /* initialize forwarder */ 51 #define MRT6_DONE 101 /* shut down forwarder */ 52 #define MRT6_ADD_MIF 102 /* add multicast interface */ 53 #define MRT6_DEL_MIF 103 /* delete multicast interface */ 54 #define MRT6_ADD_MFC 104 /* insert forwarding cache entry */ 55 #define MRT6_DEL_MFC 105 /* delete forwarding cache entry */ 56 #define MRT6_PIM 107 /* enable pim code */ 57 58 #if BSD >= 199103 59 #define GET_TIME(t) microtime(&t) 60 #elif defined(sun) 61 #define GET_TIME(t) uniqtime(&t) 62 #else 63 #define GET_TIME(t) ((t) = time) 64 #endif 65 66 /* 67 * Types and macros for handling bitmaps with one bit per multicast interface. 68 */ 69 typedef u_short mifi_t; /* type of a mif index */ 70 #define MAXMIFS 64 71 72 #ifndef IF_SETSIZE 73 #define IF_SETSIZE 256 74 #endif 75 76 typedef long if_mask; 77 #define NIFBITS (sizeof(if_mask) * NBBY) /* bits per mask */ 78 79 #ifndef howmany 80 #define howmany(x, y) (((x) + ((y) - 1)) / (y)) 81 #endif 82 83 typedef struct if_set { 84 fd_mask ifs_bits[howmany(IF_SETSIZE, NIFBITS)]; 85 } if_set; 86 87 #define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS))) 88 #define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS))) 89 #define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS))) 90 #define IF_COPY(f, t) bcopy(f, t, sizeof(*(f))) 91 #define IF_ZERO(p) bzero(p, sizeof(*(p))) 92 93 /* 94 * Argument structure for MRT6_ADD_IF. 95 */ 96 struct mif6ctl { 97 mifi_t mif6c_mifi; /* the index of the mif to be added */ 98 u_char mif6c_flags; /* MIFF_ flags defined below */ 99 u_short mif6c_pifi; /* the index of the physical IF */ 100 #ifdef notyet 101 u_int mif6c_rate_limit; /* max rate */ 102 #endif 103 }; 104 105 #define MIFF_REGISTER 0x1 /* mif represents a register end-point */ 106 107 /* 108 * Argument structure for MRT6_ADD_MFC and MRT6_DEL_MFC 109 */ 110 struct mf6cctl { 111 struct sockaddr_in6 mf6cc_origin; /* IPv6 origin of mcasts */ 112 struct sockaddr_in6 mf6cc_mcastgrp; /* multicast group associated */ 113 mifi_t mf6cc_parent; /* incoming ifindex */ 114 struct if_set mf6cc_ifset; /* set of forwarding ifs */ 115 }; 116 117 /* 118 * The kernel's multicast routing statistics. 119 */ 120 struct mrt6stat { 121 u_quad_t mrt6s_mfc_lookups; /* # forw. cache hash table hits */ 122 u_quad_t mrt6s_mfc_misses; /* # forw. cache hash table misses */ 123 u_quad_t mrt6s_upcalls; /* # calls to mrouted */ 124 u_quad_t mrt6s_no_route; /* no route for packet's origin */ 125 u_quad_t mrt6s_bad_tunnel; /* malformed tunnel options */ 126 u_quad_t mrt6s_cant_tunnel; /* no room for tunnel options */ 127 u_quad_t mrt6s_wrong_if; /* arrived on wrong interface */ 128 u_quad_t mrt6s_upq_ovflw; /* upcall Q overflow */ 129 u_quad_t mrt6s_cache_cleanups; /* # entries with no upcalls */ 130 u_quad_t mrt6s_drop_sel; /* pkts dropped selectively */ 131 u_quad_t mrt6s_q_overflow; /* pkts dropped - Q overflow */ 132 u_quad_t mrt6s_pkt2large; /* pkts dropped - size > BKT SIZE */ 133 u_quad_t mrt6s_upq_sockfull; /* upcalls dropped - socket full */ 134 }; 135 136 /* 137 * Struct used to communicate from kernel to multicast router 138 * note the convenient similarity to an IPv6 header. 139 */ 140 struct mrt6msg { 141 u_long unused1; 142 u_char im6_msgtype; /* what type of message */ 143 #define MRT6MSG_NOCACHE 1 144 #define MRT6MSG_WRONGMIF 2 145 #define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/ 146 u_char im6_mbz; /* must be zero */ 147 u_char im6_mif; /* mif rec'd on */ 148 u_char unused2; 149 struct in6_addr im6_src, im6_dst; 150 }; 151 152 /* 153 * Argument structure used by mrouted to get src-grp pkt counts 154 */ 155 struct sioc6_sg_req { 156 struct in6_addr src; 157 struct in6_addr grp; 158 u_quad_t pktcnt; 159 u_quad_t bytecnt; 160 u_quad_t wrong_if; 161 }; 162 163 /* 164 * Argument structure used by multicast routing daemon to get src-grp 165 * packet counts 166 */ 167 struct sioc_sg_req6 { 168 struct sockaddr_in6 src; 169 struct sockaddr_in6 grp; 170 u_quad_t pktcnt; 171 u_quad_t bytecnt; 172 u_quad_t wrong_if; 173 }; 174 175 /* 176 * Argument structure used by mrouted to get mif pkt counts 177 */ 178 struct sioc_mif_req6 { 179 mifi_t mifi; /* mif number */ 180 u_quad_t icount; /* Input packet count on mif */ 181 u_quad_t ocount; /* Output packet count on mif */ 182 u_quad_t ibytes; /* Input byte count on mif */ 183 u_quad_t obytes; /* Output byte count on mif */ 184 }; 185 186 #if defined(_KERNEL) || defined(KERNEL) 187 /* 188 * The kernel's multicast-interface structure. 189 */ 190 struct mif6 { 191 u_char m6_flags; /* MIFF_ flags defined above */ 192 u_int m6_rate_limit; /* max rate */ 193 #ifdef notyet 194 struct tbf *m6_tbf; /* token bucket structure at intf. */ 195 #endif 196 struct in6_addr m6_lcl_addr; /* local interface address */ 197 struct ifnet *m6_ifp; /* pointer to interface */ 198 u_quad_t m6_pkt_in; /* # pkts in on interface */ 199 u_quad_t m6_pkt_out; /* # pkts out on interface */ 200 u_quad_t m6_bytes_in; /* # bytes in on interface */ 201 u_quad_t m6_bytes_out; /* # bytes out on interface */ 202 struct route_in6 m6_route;/* cached route if this is a tunnel */ 203 #ifdef notyet 204 u_int m6_rsvp_on; /* RSVP listening on this vif */ 205 struct socket *m6_rsvpd; /* RSVP daemon socket */ 206 #endif 207 }; 208 209 /* 210 * The kernel's multicast forwarding cache entry structure 211 */ 212 struct mf6c { 213 struct sockaddr_in6 mf6c_origin; /* IPv6 origin of mcasts */ 214 struct sockaddr_in6 mf6c_mcastgrp; /* multicast group associated*/ 215 mifi_t mf6c_parent; /* incoming IF */ 216 struct if_set mf6c_ifset; /* set of outgoing IFs */ 217 218 u_quad_t mf6c_pkt_cnt; /* pkt count for src-grp */ 219 u_quad_t mf6c_byte_cnt; /* byte count for src-grp */ 220 u_quad_t mf6c_wrong_if; /* wrong if for src-grp */ 221 int mf6c_expire; /* time to clean entry up */ 222 struct timeval mf6c_last_assert; /* last time I sent an assert*/ 223 struct rtdetq *mf6c_stall; /* pkts waiting for route */ 224 struct mf6c *mf6c_next; /* hash table linkage */ 225 }; 226 227 #define MF6C_INCOMPLETE_PARENT ((mifi_t)-1) 228 229 /* 230 * Argument structure used for pkt info. while upcall is made 231 */ 232 #ifndef _NETINET_IP_MROUTE_H_ 233 struct rtdetq { /* XXX: rtdetq is also defined in ip_mroute.h */ 234 struct mbuf *m; /* A copy of the packet */ 235 struct ifnet *ifp; /* Interface pkt came in on */ 236 #ifdef UPCALL_TIMING 237 struct timeval t; /* Timestamp */ 238 #endif /* UPCALL_TIMING */ 239 struct rtdetq *next; 240 }; 241 #endif /* _NETINET_IP_MROUTE_H_ */ 242 243 #define MF6CTBLSIZ 256 244 #if (MF6CTBLSIZ & (MF6CTBLSIZ - 1)) == 0 /* from sys:route.h */ 245 #define MF6CHASHMOD(h) ((h) & (MF6CTBLSIZ - 1)) 246 #else 247 #define MF6CHASHMOD(h) ((h) % MF6CTBLSIZ) 248 #endif 249 250 #define MAX_UPQ6 4 /* max. no of pkts in upcall Q */ 251 252 #if defined(__FreeBSD__) && __FreeBSD__ >= 3 253 int ip6_mrouter_set __P((struct socket *so, struct sockopt *sopt)); 254 int ip6_mrouter_get __P((struct socket *so, struct sockopt *sopt)); 255 #else 256 int ip6_mrouter_set __P((int, struct socket *, struct mbuf *)); 257 int ip6_mrouter_get __P((int, struct socket *, struct mbuf **)); 258 #endif 259 int ip6_mrouter_done __P((void)); 260 int mrt6_ioctl __P((int, caddr_t)); 261 #endif /* _KERNEL */ 262 263 #endif /* !_NETINET6_IP6_MROUTE_H_ */ 264
Indexes created Sun Oct 19 16:10:00 GMT 2025