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9bccf70c A |
1 | /* $FreeBSD: src/sys/netinet6/ip6_mroute.h,v 1.2.2.2 2001/07/03 11:01:53 ume Exp $ */ |
2 | /* $KAME: ip6_mroute.h,v 1.17 2001/02/10 02:05:52 itojun Exp $ */ | |
1c79356b A |
3 | |
4 | /* | |
5 | * Copyright (C) 1998 WIDE Project. | |
6 | * All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 3. Neither the name of the project nor the names of its contributors | |
17 | * may be used to endorse or promote products derived from this software | |
18 | * without specific prior written permission. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND | |
21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE | |
24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
30 | * SUCH DAMAGE. | |
31 | */ | |
32 | ||
33 | /* BSDI ip_mroute.h,v 2.5 1996/10/11 16:01:48 pjd Exp */ | |
34 | ||
35 | /* | |
36 | * Definitions for IP multicast forwarding. | |
37 | * | |
38 | * Written by David Waitzman, BBN Labs, August 1988. | |
39 | * Modified by Steve Deering, Stanford, February 1989. | |
40 | * Modified by Ajit Thyagarajan, PARC, August 1993. | |
41 | * Modified by Ajit Thyagarajan, PARC, August 1994. | |
42 | * Modified by Ahmed Helmy, USC, September 1996. | |
43 | * | |
44 | * MROUTING Revision: 1.2 | |
45 | */ | |
46 | ||
47 | #ifndef _NETINET6_IP6_MROUTE_H_ | |
48 | #define _NETINET6_IP6_MROUTE_H_ | |
9bccf70c | 49 | #include <sys/appleapiopts.h> |
1c79356b A |
50 | |
51 | /* | |
52 | * Multicast Routing set/getsockopt commands. | |
53 | */ | |
9bccf70c A |
54 | #ifdef KERNEL |
55 | #define MRT6_OINIT 100 /* initialize forwarder (omrt6msg) */ | |
56 | #endif | |
1c79356b A |
57 | #define MRT6_DONE 101 /* shut down forwarder */ |
58 | #define MRT6_ADD_MIF 102 /* add multicast interface */ | |
59 | #define MRT6_DEL_MIF 103 /* delete multicast interface */ | |
60 | #define MRT6_ADD_MFC 104 /* insert forwarding cache entry */ | |
61 | #define MRT6_DEL_MFC 105 /* delete forwarding cache entry */ | |
62 | #define MRT6_PIM 107 /* enable pim code */ | |
9bccf70c | 63 | #define MRT6_INIT 108 /* initialize forwarder (mrt6msg) */ |
1c79356b A |
64 | |
65 | #if BSD >= 199103 | |
66 | #define GET_TIME(t) microtime(&t) | |
67 | #elif defined(sun) | |
68 | #define GET_TIME(t) uniqtime(&t) | |
69 | #else | |
70 | #define GET_TIME(t) ((t) = time) | |
71 | #endif | |
72 | ||
73 | /* | |
74 | * Types and macros for handling bitmaps with one bit per multicast interface. | |
75 | */ | |
76 | typedef u_short mifi_t; /* type of a mif index */ | |
77 | #define MAXMIFS 64 | |
78 | ||
79 | #ifndef IF_SETSIZE | |
80 | #define IF_SETSIZE 256 | |
81 | #endif | |
82 | ||
9bccf70c | 83 | typedef u_int32_t if_mask; |
1c79356b A |
84 | #define NIFBITS (sizeof(if_mask) * NBBY) /* bits per mask */ |
85 | ||
86 | #ifndef howmany | |
87 | #define howmany(x, y) (((x) + ((y) - 1)) / (y)) | |
88 | #endif | |
89 | ||
90 | typedef struct if_set { | |
9bccf70c | 91 | if_mask ifs_bits[howmany(IF_SETSIZE, NIFBITS)]; |
1c79356b A |
92 | } if_set; |
93 | ||
94 | #define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS))) | |
95 | #define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS))) | |
96 | #define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS))) | |
97 | #define IF_COPY(f, t) bcopy(f, t, sizeof(*(f))) | |
98 | #define IF_ZERO(p) bzero(p, sizeof(*(p))) | |
99 | ||
100 | /* | |
101 | * Argument structure for MRT6_ADD_IF. | |
102 | */ | |
103 | struct mif6ctl { | |
104 | mifi_t mif6c_mifi; /* the index of the mif to be added */ | |
105 | u_char mif6c_flags; /* MIFF_ flags defined below */ | |
106 | u_short mif6c_pifi; /* the index of the physical IF */ | |
107 | #if notyet | |
108 | u_int mif6c_rate_limit; /* max rate */ | |
109 | #endif | |
110 | }; | |
111 | ||
112 | #define MIFF_REGISTER 0x1 /* mif represents a register end-point */ | |
113 | ||
114 | /* | |
115 | * Argument structure for MRT6_ADD_MFC and MRT6_DEL_MFC | |
116 | */ | |
117 | struct mf6cctl { | |
118 | struct sockaddr_in6 mf6cc_origin; /* IPv6 origin of mcasts */ | |
119 | struct sockaddr_in6 mf6cc_mcastgrp; /* multicast group associated */ | |
120 | mifi_t mf6cc_parent; /* incoming ifindex */ | |
121 | struct if_set mf6cc_ifset; /* set of forwarding ifs */ | |
122 | }; | |
123 | ||
124 | /* | |
125 | * The kernel's multicast routing statistics. | |
126 | */ | |
127 | struct mrt6stat { | |
128 | u_quad_t mrt6s_mfc_lookups; /* # forw. cache hash table hits */ | |
129 | u_quad_t mrt6s_mfc_misses; /* # forw. cache hash table misses */ | |
130 | u_quad_t mrt6s_upcalls; /* # calls to mrouted */ | |
131 | u_quad_t mrt6s_no_route; /* no route for packet's origin */ | |
132 | u_quad_t mrt6s_bad_tunnel; /* malformed tunnel options */ | |
133 | u_quad_t mrt6s_cant_tunnel; /* no room for tunnel options */ | |
134 | u_quad_t mrt6s_wrong_if; /* arrived on wrong interface */ | |
135 | u_quad_t mrt6s_upq_ovflw; /* upcall Q overflow */ | |
136 | u_quad_t mrt6s_cache_cleanups; /* # entries with no upcalls */ | |
137 | u_quad_t mrt6s_drop_sel; /* pkts dropped selectively */ | |
138 | u_quad_t mrt6s_q_overflow; /* pkts dropped - Q overflow */ | |
139 | u_quad_t mrt6s_pkt2large; /* pkts dropped - size > BKT SIZE */ | |
140 | u_quad_t mrt6s_upq_sockfull; /* upcalls dropped - socket full */ | |
141 | }; | |
142 | ||
9bccf70c | 143 | #if MRT6_OINIT |
1c79356b A |
144 | /* |
145 | * Struct used to communicate from kernel to multicast router | |
146 | * note the convenient similarity to an IPv6 header. | |
9bccf70c | 147 | * XXX old version, superseded by mrt6msg. |
1c79356b | 148 | */ |
9bccf70c | 149 | struct omrt6msg { |
1c79356b A |
150 | u_long unused1; |
151 | u_char im6_msgtype; /* what type of message */ | |
9bccf70c A |
152 | #if 0 |
153 | #define MRT6MSG_NOCACHE 1 | |
1c79356b A |
154 | #define MRT6MSG_WRONGMIF 2 |
155 | #define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/ | |
9bccf70c | 156 | #endif |
1c79356b A |
157 | u_char im6_mbz; /* must be zero */ |
158 | u_char im6_mif; /* mif rec'd on */ | |
159 | u_char unused2; | |
160 | struct in6_addr im6_src, im6_dst; | |
161 | }; | |
9bccf70c A |
162 | #endif |
163 | ||
164 | /* | |
165 | * Structure used to communicate from kernel to multicast router. | |
166 | * We'll overlay the structure onto an MLD header (not an IPv6 header | |
167 | * like igmpmsg{} used for IPv4 implementation). This is because this | |
168 | * structure will be passed via an IPv6 raw socket, on which an application | |
169 | * will only receive the payload i.e. the data after the IPv6 header and all | |
170 | * the extension headers. (see Section 3 of draft-ietf-ipngwg-2292bis-01) | |
171 | */ | |
172 | struct mrt6msg { | |
173 | #define MRT6MSG_NOCACHE 1 | |
174 | #define MRT6MSG_WRONGMIF 2 | |
175 | #define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/ | |
176 | u_char im6_mbz; /* must be zero */ | |
177 | u_char im6_msgtype; /* what type of message */ | |
178 | u_int16_t im6_mif; /* mif rec'd on */ | |
179 | u_int32_t im6_pad; /* padding for 64bit arch */ | |
180 | struct in6_addr im6_src, im6_dst; | |
181 | }; | |
1c79356b A |
182 | |
183 | /* | |
184 | * Argument structure used by multicast routing daemon to get src-grp | |
185 | * packet counts | |
186 | */ | |
187 | struct sioc_sg_req6 { | |
188 | struct sockaddr_in6 src; | |
189 | struct sockaddr_in6 grp; | |
190 | u_quad_t pktcnt; | |
191 | u_quad_t bytecnt; | |
192 | u_quad_t wrong_if; | |
193 | }; | |
194 | ||
195 | /* | |
196 | * Argument structure used by mrouted to get mif pkt counts | |
197 | */ | |
198 | struct sioc_mif_req6 { | |
199 | mifi_t mifi; /* mif number */ | |
200 | u_quad_t icount; /* Input packet count on mif */ | |
201 | u_quad_t ocount; /* Output packet count on mif */ | |
202 | u_quad_t ibytes; /* Input byte count on mif */ | |
203 | u_quad_t obytes; /* Output byte count on mif */ | |
204 | }; | |
205 | ||
9bccf70c A |
206 | #ifdef KERNEL |
207 | #ifdef __APPLE_API_PRIVATE | |
1c79356b A |
208 | /* |
209 | * The kernel's multicast-interface structure. | |
210 | */ | |
211 | struct mif6 { | |
212 | u_char m6_flags; /* MIFF_ flags defined above */ | |
213 | u_int m6_rate_limit; /* max rate */ | |
214 | #if notyet | |
215 | struct tbf *m6_tbf; /* token bucket structure at intf. */ | |
216 | #endif | |
217 | struct in6_addr m6_lcl_addr; /* local interface address */ | |
218 | struct ifnet *m6_ifp; /* pointer to interface */ | |
219 | u_quad_t m6_pkt_in; /* # pkts in on interface */ | |
220 | u_quad_t m6_pkt_out; /* # pkts out on interface */ | |
221 | u_quad_t m6_bytes_in; /* # bytes in on interface */ | |
222 | u_quad_t m6_bytes_out; /* # bytes out on interface */ | |
223 | struct route_in6 m6_route;/* cached route if this is a tunnel */ | |
224 | #if notyet | |
225 | u_int m6_rsvp_on; /* RSVP listening on this vif */ | |
226 | struct socket *m6_rsvpd; /* RSVP daemon socket */ | |
227 | #endif | |
228 | }; | |
229 | ||
230 | /* | |
231 | * The kernel's multicast forwarding cache entry structure | |
232 | */ | |
233 | struct mf6c { | |
234 | struct sockaddr_in6 mf6c_origin; /* IPv6 origin of mcasts */ | |
235 | struct sockaddr_in6 mf6c_mcastgrp; /* multicast group associated*/ | |
236 | mifi_t mf6c_parent; /* incoming IF */ | |
237 | struct if_set mf6c_ifset; /* set of outgoing IFs */ | |
238 | ||
239 | u_quad_t mf6c_pkt_cnt; /* pkt count for src-grp */ | |
240 | u_quad_t mf6c_byte_cnt; /* byte count for src-grp */ | |
241 | u_quad_t mf6c_wrong_if; /* wrong if for src-grp */ | |
242 | int mf6c_expire; /* time to clean entry up */ | |
243 | struct timeval mf6c_last_assert; /* last time I sent an assert*/ | |
244 | struct rtdetq *mf6c_stall; /* pkts waiting for route */ | |
245 | struct mf6c *mf6c_next; /* hash table linkage */ | |
246 | }; | |
247 | ||
248 | #define MF6C_INCOMPLETE_PARENT ((mifi_t)-1) | |
249 | ||
250 | /* | |
251 | * Argument structure used for pkt info. while upcall is made | |
252 | */ | |
253 | #ifndef _NETINET_IP_MROUTE_H_ | |
254 | struct rtdetq { /* XXX: rtdetq is also defined in ip_mroute.h */ | |
255 | struct mbuf *m; /* A copy of the packet */ | |
256 | struct ifnet *ifp; /* Interface pkt came in on */ | |
257 | #if UPCALL_TIMING | |
258 | struct timeval t; /* Timestamp */ | |
259 | #endif /* UPCALL_TIMING */ | |
260 | struct rtdetq *next; | |
261 | }; | |
262 | #endif /* _NETINET_IP_MROUTE_H_ */ | |
263 | ||
264 | #define MF6CTBLSIZ 256 | |
265 | #if (MF6CTBLSIZ & (MF6CTBLSIZ - 1)) == 0 /* from sys:route.h */ | |
266 | #define MF6CHASHMOD(h) ((h) & (MF6CTBLSIZ - 1)) | |
267 | #else | |
268 | #define MF6CHASHMOD(h) ((h) % MF6CTBLSIZ) | |
269 | #endif | |
270 | ||
271 | #define MAX_UPQ6 4 /* max. no of pkts in upcall Q */ | |
272 | ||
273 | int ip6_mrouter_set __P((struct socket *so, struct sockopt *sopt)); | |
274 | int ip6_mrouter_get __P((struct socket *so, struct sockopt *sopt)); | |
275 | int ip6_mrouter_done __P((void)); | |
276 | int mrt6_ioctl __P((int, caddr_t)); | |
9bccf70c | 277 | #endif /* __APPLE_API_PRIVATE */ |
1c79356b A |
278 | #endif /* KERNEL */ |
279 | ||
280 | #endif /* !_NETINET6_IP6_MROUTE_H_ */ |