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8322 nl: misleading-indentation
[unleashed/tickless.git] / usr / src / boot / include / netinet6 / in6.h
blob81d8d318cdc4ae83b3455a120a1e39f58d7c88d6
1 /*-
2 * Copyright (C) 1995, 1996, 1997, and 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 * $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $
30 */
31
32 /*-
33 * Copyright (c) 1982, 1986, 1990, 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 4. Neither the name of the University nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 * @(#)in.h 8.3 (Berkeley) 1/3/94
61 * $FreeBSD$
62 */
63
64 #ifndef __KAME_NETINET_IN_H_INCLUDED_
65 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
66 #endif
67
68 #ifndef _NETINET6_IN6_H_
69 #define _NETINET6_IN6_H_
70
71 /*
72 * Identification of the network protocol stack
73 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
74 * has the table of implementation/integration differences.
75 */
76 #define __KAME__
77 #define __KAME_VERSION "FreeBSD"
78
79 /*
80 * IPv6 port allocation rules should mirror the IPv4 rules and are controlled
81 * by the net.inet.ip.portrange sysctl tree. The following defines exist
82 * for compatibility with userland applications that need them.
83 */
84 #if __BSD_VISIBLE
85 #define IPV6PORT_RESERVED 1024
86 #define IPV6PORT_ANONMIN 49152
87 #define IPV6PORT_ANONMAX 65535
88 #define IPV6PORT_RESERVEDMIN 600
89 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
90 #endif
91
92 /*
93 * IPv6 address
94 */
95 struct in6_addr {
96 union {
97 uint8_t __u6_addr8[16];
98 uint16_t __u6_addr16[8];
99 uint32_t __u6_addr32[4];
100 } __u6_addr; /* 128-bit IP6 address */
101 };
102
103 #define s6_addr __u6_addr.__u6_addr8
104 #ifdef _KERNEL /* XXX nonstandard */
105 #define s6_addr8 __u6_addr.__u6_addr8
106 #define s6_addr16 __u6_addr.__u6_addr16
107 #define s6_addr32 __u6_addr.__u6_addr32
108 #endif
109
110 #define INET6_ADDRSTRLEN 46
111
112 /*
113 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6.
114 */
115
116 /*
117 * Socket address for IPv6
118 */
119 #if __BSD_VISIBLE
120 #define SIN6_LEN
121 #endif
122
123 struct sockaddr_in6 {
124 uint8_t sin6_len; /* length of this struct */
125 sa_family_t sin6_family; /* AF_INET6 */
126 in_port_t sin6_port; /* Transport layer port # */
127 uint32_t sin6_flowinfo; /* IP6 flow information */
128 struct in6_addr sin6_addr; /* IP6 address */
129 uint32_t sin6_scope_id; /* scope zone index */
130 };
131
132 /*
133 * Local definition for masks
134 */
135 #ifdef _KERNEL /* XXX nonstandard */
136 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
137 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
138 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
139 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
140 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
141 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
142 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
143 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
144 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
145 #endif
146
147 #ifdef _KERNEL
148 extern const struct sockaddr_in6 sa6_any;
149
150 extern const struct in6_addr in6mask0;
151 extern const struct in6_addr in6mask32;
152 extern const struct in6_addr in6mask64;
153 extern const struct in6_addr in6mask96;
154 extern const struct in6_addr in6mask128;
155 #endif /* _KERNEL */
156
157 /*
158 * Macros started with IPV6_ADDR is KAME local
159 */
160 #ifdef _KERNEL /* XXX nonstandard */
161 #if _BYTE_ORDER == _BIG_ENDIAN
162 #define IPV6_ADDR_INT32_ONE 1
163 #define IPV6_ADDR_INT32_TWO 2
164 #define IPV6_ADDR_INT32_MNL 0xff010000
165 #define IPV6_ADDR_INT32_MLL 0xff020000
166 #define IPV6_ADDR_INT32_SMP 0x0000ffff
167 #define IPV6_ADDR_INT16_ULL 0xfe80
168 #define IPV6_ADDR_INT16_USL 0xfec0
169 #define IPV6_ADDR_INT16_MLL 0xff02
170 #elif _BYTE_ORDER == _LITTLE_ENDIAN
171 #define IPV6_ADDR_INT32_ONE 0x01000000
172 #define IPV6_ADDR_INT32_TWO 0x02000000
173 #define IPV6_ADDR_INT32_MNL 0x000001ff
174 #define IPV6_ADDR_INT32_MLL 0x000002ff
175 #define IPV6_ADDR_INT32_SMP 0xffff0000
176 #define IPV6_ADDR_INT16_ULL 0x80fe
177 #define IPV6_ADDR_INT16_USL 0xc0fe
178 #define IPV6_ADDR_INT16_MLL 0x02ff
179 #endif
180 #endif
181
182 /*
183 * Definition of some useful macros to handle IP6 addresses
184 */
185 #if __BSD_VISIBLE
186 #define IN6ADDR_ANY_INIT \
187 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
188 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
189 #define IN6ADDR_LOOPBACK_INIT \
190 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
191 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
192 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \
193 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
194 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
195 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \
196 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
197 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
198 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
199 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
200 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
201 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
202 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
203 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
204 #define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \
205 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
206 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}}
207 #endif
208
209 extern const struct in6_addr in6addr_any;
210 extern const struct in6_addr in6addr_loopback;
211 #if __BSD_VISIBLE
212 extern const struct in6_addr in6addr_nodelocal_allnodes;
213 extern const struct in6_addr in6addr_linklocal_allnodes;
214 extern const struct in6_addr in6addr_linklocal_allrouters;
215 extern const struct in6_addr in6addr_linklocal_allv2routers;
216 #endif
217
218 /*
219 * Equality
220 * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
221 * does not supply memcmp(). For userland memcmp() is preferred as it is
222 * in ANSI standard.
223 */
224 #ifdef _KERNEL
225 #define IN6_ARE_ADDR_EQUAL(a, b) \
226 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
227 #else
228 #if __BSD_VISIBLE
229 #define IN6_ARE_ADDR_EQUAL(a, b) \
230 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
231 #endif
232 #endif
233
234 /*
235 * Unspecified
236 */
237 #define IN6_IS_ADDR_UNSPECIFIED(a) \
238 ((a)->__u6_addr.__u6_addr32[0] == 0 && \
239 (a)->__u6_addr.__u6_addr32[1] == 0 && \
240 (a)->__u6_addr.__u6_addr32[2] == 0 && \
241 (a)->__u6_addr.__u6_addr32[3] == 0)
242
243 /*
244 * Loopback
245 */
246 #define IN6_IS_ADDR_LOOPBACK(a) \
247 ((a)->__u6_addr.__u6_addr32[0] == 0 && \
248 (a)->__u6_addr.__u6_addr32[1] == 0 && \
249 (a)->__u6_addr.__u6_addr32[2] == 0 && \
250 (a)->__u6_addr.__u6_addr32[3] == ntohl(1))
251
252 /*
253 * IPv4 compatible
254 */
255 #define IN6_IS_ADDR_V4COMPAT(a) \
256 ((a)->__u6_addr.__u6_addr32[0] == 0 && \
257 (a)->__u6_addr.__u6_addr32[1] == 0 && \
258 (a)->__u6_addr.__u6_addr32[2] == 0 && \
259 (a)->__u6_addr.__u6_addr32[3] != 0 && \
260 (a)->__u6_addr.__u6_addr32[3] != ntohl(1))
261
262 /*
263 * Mapped
264 */
265 #define IN6_IS_ADDR_V4MAPPED(a) \
266 ((a)->__u6_addr.__u6_addr32[0] == 0 && \
267 (a)->__u6_addr.__u6_addr32[1] == 0 && \
268 (a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff))
269
270 /*
271 * KAME Scope Values
272 */
273
274 #ifdef _KERNEL /* XXX nonstandard */
275 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01
276 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
277 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
278 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05
279 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
280 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e
281 #else
282 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
283 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
284 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
285 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
286 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
287 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
288 #endif
289
290 /*
291 * Unicast Scope
292 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
293 */
294 #define IN6_IS_ADDR_LINKLOCAL(a) \
295 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
296 #define IN6_IS_ADDR_SITELOCAL(a) \
297 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
298
299 /*
300 * Multicast
301 */
302 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
303
304 #ifdef _KERNEL /* XXX nonstandard */
305 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
306 #else
307 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
308 #endif
309
310 /*
311 * Multicast Scope
312 */
313 #ifdef _KERNEL /* refers nonstandard items */
314 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
315 (IN6_IS_ADDR_MULTICAST(a) && \
316 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
317 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
318 (IN6_IS_ADDR_MULTICAST(a) && \
319 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
320 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
321 (IN6_IS_ADDR_MULTICAST(a) && \
322 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
323 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
324 (IN6_IS_ADDR_MULTICAST(a) && \
325 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
326 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
327 (IN6_IS_ADDR_MULTICAST(a) && \
328 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
329 #define IN6_IS_ADDR_MC_GLOBAL(a) \
330 (IN6_IS_ADDR_MULTICAST(a) && \
331 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
332 #else
333 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
334 (IN6_IS_ADDR_MULTICAST(a) && \
335 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
336 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
337 (IN6_IS_ADDR_MULTICAST(a) && \
338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
339 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
340 (IN6_IS_ADDR_MULTICAST(a) && \
341 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
342 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
343 (IN6_IS_ADDR_MULTICAST(a) && \
344 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
345 #define IN6_IS_ADDR_MC_GLOBAL(a) \
346 (IN6_IS_ADDR_MULTICAST(a) && \
347 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
348 #endif
349
350 #ifdef _KERNEL /* nonstandard */
351 /*
352 * KAME Scope
353 */
354 #define IN6_IS_SCOPE_LINKLOCAL(a) \
355 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
356 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
357 #define IN6_IS_SCOPE_EMBED(a) \
358 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
359 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
360 (IN6_IS_ADDR_MC_INTFACELOCAL(a)))
361
362 #define IFA6_IS_DEPRECATED(a) \
363 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \
364 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \
365 (a)->ia6_lifetime.ia6t_pltime)
366 #define IFA6_IS_INVALID(a) \
367 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \
368 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \
369 (a)->ia6_lifetime.ia6t_vltime)
370 #endif /* _KERNEL */
371
372 /*
373 * IP6 route structure
374 */
375 #if __BSD_VISIBLE
376 struct route_in6 {
377 struct rtentry *ro_rt;
378 struct llentry *ro_lle;
379 struct in6_addr *ro_ia6;
380 int ro_flags;
381 struct sockaddr_in6 ro_dst;
382 };
383 #endif
384
385 /*
386 * Options for use with [gs]etsockopt at the IPV6 level.
387 * First word of comment is data type; bool is stored in int.
388 */
389 /* no hdrincl */
390 #if 0 /* the followings are relic in IPv4 and hence are disabled */
391 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
392 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
393 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
394 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
395 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
396 #endif
397 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
398 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
399 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */
400 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */
401 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */
402 #define IPV6_JOIN_GROUP 12 /* ipv6_mreq; join a group membership */
403 #define IPV6_LEAVE_GROUP 13 /* ipv6_mreq; leave a group membership */
404 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
405 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
406 /* RFC2292 options */
407 #ifdef _KERNEL
408 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */
409 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
410 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
411 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
412 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */
413 #define IPV6_2292RTHDR 24 /* bool; routing header */
414 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
415 #endif
416
417 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
418 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */
419 #ifndef _KERNEL
420 #define IPV6_BINDV6ONLY IPV6_V6ONLY
421 #endif
422
423 #if 1 /* IPSEC */
424 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
425 #endif /* IPSEC */
426
427 /* 29; unused; was IPV6_FAITH */
428 #if 1 /* IPV6FIREWALL */
429 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */
430 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
431 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
432 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
433 #define IPV6_FW_GET 34 /* get entire firewall rule chain */
434 #endif
435
436 /* new socket options introduced in RFC3542 */
437 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */
438
439 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */
440 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */
441 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */
442 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */
443 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */
444 #ifdef _KERNEL
445 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
446 #endif
447
448 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */
449 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */
450
451 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt),
452 4 bytes int; MTU notification (cmsg) */
453 #if 0 /*obsoleted during 2292bis -> 3542*/
454 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm
455 (cmsg only/not in of RFC3542) */
456 #endif
457
458 /* more new socket options introduced in RFC3542 */
459 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */
460 #define IPV6_HOPLIMIT 47 /* int; send hop limit */
461 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */
462 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
463 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
464 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */
465 #if 0
466 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */
467 /* obsoleted by RFC3542 */
468 #endif
469
470 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */
471
472 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */
473
474 #define IPV6_TCLASS 61 /* int; send traffic class value */
475 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
476
477 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as
478 * the source address.
479 */
480
481 #define IPV6_BINDANY 64 /* bool: allow bind to any address */
482
483 #define IPV6_BINDMULTI 65 /* bool; allow multibind to same addr/port */
484 #define IPV6_RSS_LISTEN_BUCKET 66 /* int; set RSS listen bucket */
485 #define IPV6_FLOWID 67 /* int; flowid of given socket */
486 #define IPV6_FLOWTYPE 68 /* int; flowtype of given socket */
487 #define IPV6_RSSBUCKETID 69 /* int; RSS bucket ID of given socket */
488 #define IPV6_RECVFLOWID 70 /* bool; receive IP6 flowid/flowtype w/ datagram */
489 #define IPV6_RECVRSSBUCKETID 71 /* bool; receive IP6 RSS bucket id w/ datagram */
490
491 /*
492 * The following option is private; do not use it from user applications.
493 * It is deliberately defined to the same value as IP_MSFILTER.
494 */
495 #define IPV6_MSFILTER 74 /* struct __msfilterreq;
496 * set/get multicast source filter list.
497 */
498
499 /* to define items, should talk with KAME guys first, for *BSD compatibility */
500
501 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
502 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
503 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
504
505 /*
506 * Defaults and limits for options
507 */
508 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
509 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
510
511 /*
512 * The im6o_membership vector for each socket is now dynamically allocated at
513 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized
514 * according to a power-of-two increment.
515 */
516 #define IPV6_MIN_MEMBERSHIPS 31
517 #define IPV6_MAX_MEMBERSHIPS 4095
518
519 /*
520 * Default resource limits for IPv6 multicast source filtering.
521 * These may be modified by sysctl.
522 */
523 #define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */
524 #define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */
525
526 /*
527 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
528 */
529 struct ipv6_mreq {
530 struct in6_addr ipv6mr_multiaddr;
531 unsigned int ipv6mr_interface;
532 };
533
534 /*
535 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
536 */
537 struct in6_pktinfo {
538 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
539 unsigned int ipi6_ifindex; /* send/recv interface index */
540 };
541
542 /*
543 * Control structure for IPV6_RECVPATHMTU socket option.
544 */
545 struct ip6_mtuinfo {
546 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */
547 uint32_t ip6m_mtu;
548 };
549
550 /*
551 * Argument for IPV6_PORTRANGE:
552 * - which range to search when port is unspecified at bind() or connect()
553 */
554 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */
555 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
556 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
557
558 #if __BSD_VISIBLE
559 /*
560 * Definitions for inet6 sysctl operations.
561 *
562 * Third level is protocol number.
563 * Fourth level is desired variable within that protocol.
564 */
565 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
566
567 /*
568 * Names for IP sysctl objects
569 */
570 #define IPV6CTL_FORWARDING 1 /* act as router */
571 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
572 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
573 #ifdef notyet
574 #define IPV6CTL_DEFMTU 4 /* default MTU */
575 #endif
576 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
577 #define IPV6CTL_STATS 6 /* stats */
578 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
579 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
580 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
581 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
582 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
583 #define IPV6CTL_ACCEPT_RTADV 12
584 /* 13; unused; was: IPV6CTL_KEEPFAITH */
585 #define IPV6CTL_LOG_INTERVAL 14
586 #define IPV6CTL_HDRNESTLIMIT 15
587 #define IPV6CTL_DAD_COUNT 16
588 #define IPV6CTL_AUTO_FLOWLABEL 17
589 #define IPV6CTL_DEFMCASTHLIM 18
590 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
591 #define IPV6CTL_KAME_VERSION 20
592 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
593 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
594 #if 0 /* obsolete */
595 #define IPV6CTL_MAPPED_ADDR 23
596 #endif
597 #define IPV6CTL_V6ONLY 24
598 /* IPV6CTL_RTEXPIRE 25 deprecated */
599 /* IPV6CTL_RTMINEXPIRE 26 deprecated */
600 /* IPV6CTL_RTMAXCACHE 27 deprecated */
601
602 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */
603 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
604 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
605 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
606 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
607 #define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */
608 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */
609 #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */
610
611 #define IPV6CTL_MAXFRAGS 41 /* max fragments */
612 #if 0
613 #define IPV6CTL_IFQ 42 /* ip6intrq node */
614 #define IPV6CTL_ISATAPRTR 43 /* isatap router */
615 #endif
616 #define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */
617
618 /* New entries should be added here from current IPV6CTL_MAXID value. */
619 /* to define items, should talk with KAME guys first, for *BSD compatibility */
620 #define IPV6CTL_STEALTH 45
621
622 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47
623 #define IPV6CTL_NO_RADR 48 /* No defroute from RA */
624 #define IPV6CTL_NORBIT_RAIF 49 /* Disable R-bit in NA on RA
625 * receiving IF. */
626 #define IPV6CTL_RFC6204W3 50 /* Accept defroute even when forwarding
627 enabled */
628 #define IPV6CTL_MAXID 51
629 #endif /* __BSD_VISIBLE */
630
631 /*
632 * Since both netinet/ and netinet6/ call into netipsec/ and netpfil/,
633 * the protocol specific mbuf flags are shared between them.
634 */
635 #define M_FASTFWD_OURS M_PROTO1 /* changed dst to local */
636 #define M_IP6_NEXTHOP M_PROTO2 /* explicit ip nexthop */
637 #define M_IP_NEXTHOP M_PROTO2 /* explicit ip nexthop */
638 #define M_SKIP_FIREWALL M_PROTO3 /* skip firewall processing */
639 #define M_AUTHIPHDR M_PROTO4
640 #define M_DECRYPTED M_PROTO5
641 #define M_LOOP M_PROTO6
642 #define M_AUTHIPDGM M_PROTO7
643 #define M_RTALERT_MLD M_PROTO8
644
645 #ifdef _KERNEL
646 struct cmsghdr;
647 struct ip6_hdr;
648
649 int in6_cksum_pseudo(struct ip6_hdr *, uint32_t, uint8_t, uint16_t);
650 int in6_cksum(struct mbuf *, u_int8_t, u_int32_t, u_int32_t);
651 int in6_cksum_partial(struct mbuf *, u_int8_t, u_int32_t, u_int32_t,
652 u_int32_t);
653 int in6_localaddr(struct in6_addr *);
654 int in6_localip(struct in6_addr *);
655 int in6_ifhasaddr(struct ifnet *, struct in6_addr *);
656 int in6_addrscope(const struct in6_addr *);
657 char *ip6_sprintf(char *, const struct in6_addr *);
658 struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);
659 extern void in6_if_up(struct ifnet *);
660 struct sockaddr;
661 extern u_char ip6_protox[];
662
663 void in6_sin6_2_sin(struct sockaddr_in *sin,
664 struct sockaddr_in6 *sin6);
665 void in6_sin_2_v4mapsin6(struct sockaddr_in *sin,
666 struct sockaddr_in6 *sin6);
667 void in6_sin6_2_sin_in_sock(struct sockaddr *nam);
668 void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam);
669 extern void addrsel_policy_init(void);
670
671 #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
672 #define sin6tosa(sin6) ((struct sockaddr *)(sin6))
673 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
674
675 #endif /* _KERNEL */
676
677 #ifndef _SIZE_T_DECLARED
678 typedef __size_t size_t;
679 #define _SIZE_T_DECLARED
680 #endif
681
682 #ifndef _SOCKLEN_T_DECLARED
683 typedef __socklen_t socklen_t;
684 #define _SOCKLEN_T_DECLARED
685 #endif
686
687 #if __BSD_VISIBLE
688
689 __BEGIN_DECLS
690 struct cmsghdr;
691
692 extern int inet6_option_space(int);
693 extern int inet6_option_init(void *, struct cmsghdr **, int);
694 extern int inet6_option_append(struct cmsghdr *, const uint8_t *,
695 int, int);
696 extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
697 extern int inet6_option_next(const struct cmsghdr *, uint8_t **);
698 extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int);
699
700 extern size_t inet6_rthdr_space(int, int);
701 extern struct cmsghdr *inet6_rthdr_init(void *, int);
702 extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *,
703 unsigned int);
704 extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);
705 #if 0 /* not implemented yet */
706 extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *);
707 #endif
708 extern int inet6_rthdr_segments(const struct cmsghdr *);
709 extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);
710 extern int inet6_rthdr_getflags(const struct cmsghdr *, int);
711
712 extern int inet6_opt_init(void *, socklen_t);
713 extern int inet6_opt_append(void *, socklen_t, int, uint8_t, socklen_t,
714 uint8_t, void **);
715 extern int inet6_opt_finish(void *, socklen_t, int);
716 extern int inet6_opt_set_val(void *, int, void *, socklen_t);
717
718 extern int inet6_opt_next(void *, socklen_t, int, uint8_t *, socklen_t *,
719 void **);
720 extern int inet6_opt_find(void *, socklen_t, int, uint8_t, socklen_t *,
721 void **);
722 extern int inet6_opt_get_val(void *, int, void *, socklen_t);
723 extern socklen_t inet6_rth_space(int, int);
724 extern void *inet6_rth_init(void *, socklen_t, int, int);
725 extern int inet6_rth_add(void *, const struct in6_addr *);
726 extern int inet6_rth_reverse(const void *, void *);
727 extern int inet6_rth_segments(const void *);
728 extern struct in6_addr *inet6_rth_getaddr(const void *, int);
729 __END_DECLS
730
731 #endif /* __BSD_VISIBLE */
732
733 #endif /* !_NETINET6_IN6_H_ */
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