1/*
2 * Copyright (c) 2008-2018 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29/*
30 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
31 * All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. Neither the name of the project nor the names of its contributors
42 * may be used to endorse or promote products derived from this software
43 * without specific prior written permission.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * SUCH DAMAGE.
56 */
57
58/*
59 * Copyright (c) 1982, 1986, 1990, 1993
60 * The Regents of the University of California. All rights reserved.
61 *
62 * Redistribution and use in source and binary forms, with or without
63 * modification, are permitted provided that the following conditions
64 * are met:
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in the
69 * documentation and/or other materials provided with the distribution.
70 * 3. All advertising materials mentioning features or use of this software
71 * must display the following acknowledgement:
72 * This product includes software developed by the University of
73 * California, Berkeley and its contributors.
74 * 4. Neither the name of the University nor the names of its contributors
75 * may be used to endorse or promote products derived from this software
76 * without specific prior written permission.
77 *
78 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
79 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
80 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
81 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
82 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
83 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
84 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
85 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
86 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
87 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
88 * SUCH DAMAGE.
89 *
90 * @(#)in.h 8.3 (Berkeley) 1/3/94
91 */
92
93#ifndef __KAME_NETINET_IN_H_INCLUDED_
94#error "do not include netinet6/in6.h directly, include netinet/in.h. " \
95 " see RFC2553"
96#endif
97
98#ifndef _NETINET6_IN6_H_
99#define _NETINET6_IN6_H_
100#include <sys/appleapiopts.h>
101#include <sys/_types.h>
102#include <sys/_types/_sa_family_t.h>
103
104/*
105 * Identification of the network protocol stack
106 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
107 * has the table of implementation/integration differences.
108 */
109#define __KAME__
110#define __KAME_VERSION "2009/apple-darwin"
111
112#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
113/*
114 * Local port number conventions:
115 *
116 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
117 * unless a kernel is compiled with IPNOPRIVPORTS defined.
118 *
119 * When a user does a bind(2) or connect(2) with a port number of zero,
120 * a non-conflicting local port address is chosen.
121 *
122 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
123 * that is settable by sysctl(3); net.inet.ip.anonportmin and
124 * net.inet.ip.anonportmax respectively.
125 *
126 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
127 * default assignment range.
128 *
129 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
130 *
131 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
132 * and exists only for FreeBSD compatibility purposes.
133 *
134 * The value IP_PORTRANGE_LOW changes the range to the "low" are
135 * that is (by convention) restricted to privileged processes.
136 * This convention is based on "vouchsafe" principles only.
137 * It is only secure if you trust the remote host to restrict these ports.
138 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
139 */
140
141#define IPV6PORT_RESERVED 1024
142#define IPV6PORT_ANONMIN 49152
143#define IPV6PORT_ANONMAX 65535
144#define IPV6PORT_RESERVEDMIN 600
145#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
146#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
147
148/*
149 * IPv6 address
150 */
151typedef struct in6_addr {
152 union {
153 __uint8_t __u6_addr8[16];
154 __uint16_t __u6_addr16[8];
155 __uint32_t __u6_addr32[4];
156 } __u6_addr; /* 128-bit IP6 address */
157} in6_addr_t;
158
159#define s6_addr __u6_addr.__u6_addr8
160#ifdef KERNEL /* XXX nonstandard */
161#define s6_addr8 __u6_addr.__u6_addr8
162#define s6_addr16 __u6_addr.__u6_addr16
163#define s6_addr32 __u6_addr.__u6_addr32
164#endif
165
166#define INET6_ADDRSTRLEN 46
167
168/*
169 * Socket address for IPv6
170 */
171#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
172#define SIN6_LEN
173#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
174struct sockaddr_in6 {
175 __uint8_t sin6_len; /* length of this struct(sa_family_t) */
176 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */
177 in_port_t sin6_port; /* Transport layer port # (in_port_t) */
178 __uint32_t sin6_flowinfo; /* IP6 flow information */
179 struct in6_addr sin6_addr; /* IP6 address */
180 __uint32_t sin6_scope_id; /* scope zone index */
181};
182
183#ifdef KERNEL /* XXX nonstandard */
184/*
185 * Local definition for masks
186 */
187#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
188#define IN6MASK7 {{{ 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
189 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
190#define IN6MASK16 {{{ 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
191 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
192#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
193 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
194#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
195 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
196#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
197 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
198#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
199 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
200#endif
201
202#ifdef KERNEL_PRIVATE
203extern const struct sockaddr_in6 sa6_any;
204
205extern const struct in6_addr in6mask0;
206extern const struct in6_addr in6mask7;
207extern const struct in6_addr in6mask16;
208extern const struct in6_addr in6mask32;
209extern const struct in6_addr in6mask64;
210extern const struct in6_addr in6mask96;
211extern const struct in6_addr in6mask128;
212
213#define SIN6(s) ((struct sockaddr_in6 *)(void *)s)
214#define satosin6(sa) SIN6(sa)
215#define sin6tosa(sin6) ((struct sockaddr *)(void *)(sin6))
216#define SIN6IFSCOPE(s) SIN6(s)
217#endif /* KERNEL_PRIVATE */
218
219#ifdef KERNEL /* XXX nonstandard */
220/*
221 * Macros started with IPV6_ADDR is KAME local
222 */
223#if BYTE_ORDER == BIG_ENDIAN
224#define IPV6_ADDR_INT32_ONE 1
225#define IPV6_ADDR_INT32_TWO 2
226#define IPV6_ADDR_INT32_MNL 0xff010000
227#define IPV6_ADDR_INT32_MLL 0xff020000
228#define IPV6_ADDR_INT32_SMP 0x0000ffff
229#define IPV6_ADDR_INT16_ULL 0xfe80
230#define IPV6_ADDR_INT16_USL 0xfec0
231#define IPV6_ADDR_INT16_MLL 0xff02
232#elif BYTE_ORDER == LITTLE_ENDIAN
233#define IPV6_ADDR_INT32_ONE 0x01000000
234#define IPV6_ADDR_INT32_TWO 0x02000000
235#define IPV6_ADDR_INT32_MNL 0x000001ff
236#define IPV6_ADDR_INT32_MLL 0x000002ff
237#define IPV6_ADDR_INT32_SMP 0xffff0000
238#define IPV6_ADDR_INT16_ULL 0x80fe
239#define IPV6_ADDR_INT16_USL 0xc0fe
240#define IPV6_ADDR_INT16_MLL 0x02ff
241#endif
242#endif
243
244/*
245 * Definition of some useful macros to handle IP6 addresses
246 */
247#define IN6ADDR_ANY_INIT \
248 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
249 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
250#define IN6ADDR_LOOPBACK_INIT \
251 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
252 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
253#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
254#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
255 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
256 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
257#define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \
258 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
259 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
260#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
261 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
262 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
263#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
264 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
265 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
266#define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \
267 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
268 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}}
269#define IN6ADDR_V4MAPPED_INIT \
270 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
271 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
272#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
273
274extern const struct in6_addr in6addr_any;
275extern const struct in6_addr in6addr_loopback;
276#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
277extern const struct in6_addr in6addr_nodelocal_allnodes;
278extern const struct in6_addr in6addr_linklocal_allnodes;
279extern const struct in6_addr in6addr_linklocal_allrouters;
280extern const struct in6_addr in6addr_linklocal_allv2routers;
281#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
282
283/*
284 * Equality
285 * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
286 * does not supply memcmp(). For userland memcmp() is preferred as it is
287 * in ANSI standard.
288 */
289#ifdef KERNEL
290#define IN6_ARE_ADDR_EQUAL(a, b) \
291 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], \
292 sizeof (struct in6_addr)) == 0)
293#else
294#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
295#define IN6_ARE_ADDR_EQUAL(a, b) \
296 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof (struct in6_addr)) \
297 == 0)
298#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
299#endif
300
301#ifdef KERNEL /* non standard */
302/* see if two addresses are equal in a scope-conscious manner. */
303#define SA6_ARE_ADDR_EQUAL(a, b) \
304 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
305 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \
306 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof (struct in6_addr)) == 0))
307#endif
308
309/*
310 * Unspecified
311 */
312#define IN6_IS_ADDR_UNSPECIFIED(a) \
313 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
314 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
315 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
316 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
317
318/*
319 * Loopback
320 */
321#define IN6_IS_ADDR_LOOPBACK(a) \
322 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
323 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
324 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
325 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
326
327/*
328 * IPv4 compatible
329 */
330#define IN6_IS_ADDR_V4COMPAT(a) \
331 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
332 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
333 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
334 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
335 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
336
337/*
338 * Mapped
339 */
340#define IN6_IS_ADDR_V4MAPPED(a) \
341 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
342 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
343 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == \
344 ntohl(0x0000ffff)))
345
346/*
347 * 6to4
348 */
349#define IN6_IS_ADDR_6TO4(x) (ntohs((x)->s6_addr16[0]) == 0x2002)
350
351/*
352 * KAME Scope Values
353 */
354
355#ifdef KERNEL /* XXX nonstandard */
356#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
357#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
358#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
359#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
360#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
361#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
362#else
363#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
364#define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
365#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
366#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
367#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
368#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
369#endif
370
371/*
372 * Unicast Scope
373 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
374 */
375#define IN6_IS_ADDR_LINKLOCAL(a) \
376 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
377#define IN6_IS_ADDR_SITELOCAL(a) \
378 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
379
380/*
381 * Multicast
382 */
383#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
384
385/*
386 * Unique Local IPv6 Unicast Addresses (per RFC 4193)
387 */
388#define IN6_IS_ADDR_UNIQUE_LOCAL(a) \
389 (((a)->s6_addr[0] == 0xfc) || ((a)->s6_addr[0] == 0xfd))
390
391#ifdef KERNEL /* XXX nonstandard */
392#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
393#else
394#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
395#endif
396
397/*
398 * Multicast Scope
399 */
400#ifdef KERNEL /* refers nonstandard items */
401#define IN6_IS_ADDR_MC_NODELOCAL(a) \
402 (IN6_IS_ADDR_MULTICAST(a) && \
403 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
404#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
405 (IN6_IS_ADDR_MULTICAST(a) && \
406 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
407#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
408 (IN6_IS_ADDR_MULTICAST(a) && \
409 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
410#define IN6_IS_ADDR_MC_SITELOCAL(a) \
411 (IN6_IS_ADDR_MULTICAST(a) && \
412 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
413#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
414 (IN6_IS_ADDR_MULTICAST(a) && \
415 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
416#define IN6_IS_ADDR_MC_GLOBAL(a) \
417 (IN6_IS_ADDR_MULTICAST(a) && \
418 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
419#else
420#define IN6_IS_ADDR_MC_NODELOCAL(a) \
421 (IN6_IS_ADDR_MULTICAST(a) && \
422 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
423#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
424 (IN6_IS_ADDR_MULTICAST(a) && \
425 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
426#define IN6_IS_ADDR_MC_SITELOCAL(a) \
427 (IN6_IS_ADDR_MULTICAST(a) && \
428 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
429#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
430 (IN6_IS_ADDR_MULTICAST(a) && \
431 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
432#define IN6_IS_ADDR_MC_GLOBAL(a) \
433 (IN6_IS_ADDR_MULTICAST(a) && \
434 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
435#endif
436
437#ifdef KERNEL /* nonstandard */
438/*
439 * KAME Scope
440 */
441#define IN6_IS_SCOPE_LINKLOCAL(a) \
442 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
443 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
444
445#define IN6_IS_SCOPE_EMBED(a) \
446 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
447 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
448 (IN6_IS_ADDR_MC_INTFACELOCAL(a)))
449
450#define IFA6_IS_DEPRECATED(a, t) \
451 ((a)->ia6_lifetime.ia6ti_preferred != 0 && \
452 (a)->ia6_lifetime.ia6ti_preferred < (t))
453#define IFA6_IS_INVALID(a, t) \
454 ((a)->ia6_lifetime.ia6ti_expire != 0 && \
455 (a)->ia6_lifetime.ia6ti_expire < (t))
456#endif /* KERNEL */
457
458#ifdef PRIVATE
459struct route_in6_old {
460 void *ro_rt;
461 uint32_t ro_flags;
462 struct sockaddr_in6 ro_dst;
463};
464#endif /* PRIVATE */
465
466#ifdef BSD_KERNEL_PRIVATE
467#include <net/if_llatbl.h>
468#include <sys/eventhandler.h>
469
470/*
471 * IP6 route structure
472 *
473 * A route consists of a destination address and a reference
474 * to a routing entry. These are often held by protocols
475 * in their control blocks, e.g. inpcb.
476 */
477struct route_in6 {
478 /*
479 * N.B: struct route_in6 must begin with ro_{rt,srcia,flags}
480 * because the code does some casts of a 'struct route_in6 *'
481 * to a 'struct route *'.
482 */
483 struct rtentry *ro_rt;
484 struct llentry *ro_lle;
485
486 struct ifaddr *ro_srcia;
487 uint32_t ro_flags; /* route flags */
488 struct sockaddr_in6 ro_dst;
489};
490#endif /* BSD_KERNEL_PRIVATE */
491
492/*
493 * Options for use with [gs]etsockopt at the IPV6 level.
494 * First word of comment is data type; bool is stored in int.
495 */
496/* no hdrincl */
497#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
498/*
499 * RFC 3542 define the following socket options in a manner incompatible
500 * with RFC 2292:
501 * IPV6_PKTINFO
502 * IPV6_HOPLIMIT
503 * IPV6_NEXTHOP
504 * IPV6_HOPOPTS
505 * IPV6_DSTOPTS
506 * IPV6_RTHDR
507 *
508 * To use the new IPv6 Sockets options introduced by RFC 3542
509 * the constant __APPLE_USE_RFC_3542 must be defined before
510 * including <netinet/in.h>
511 *
512 * To use the old IPv6 Sockets options from RFC 2292
513 * the constant __APPLE_USE_RFC_2292 must be defined before
514 * including <netinet/in.h>
515 *
516 * Note that eventually RFC 3542 is going to be the
517 * default and RFC 2292 will be obsolete.
518 */
519#ifdef BSD_KERNEL_PRIVATE
520#define __APPLE_USE_RFC_3542 1
521#endif /* BSD_KERNEL_PRIVATE */
522
523#if defined(__APPLE_USE_RFC_3542) && defined(__APPLE_USE_RFC_2292)
524#error "__APPLE_USE_RFC_3542 and __APPLE_USE_RFC_2292 cannot be both defined"
525#endif
526
527#if 0 /* the followings are relic in IPv4 and hence are disabled */
528#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
529#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
530#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
531#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
532#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
533#endif /* 0 */
534#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
535#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
536#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
537#define IPV6_MULTICAST_IF 9 /* __uint8_t; set/get IP6 multicast i/f */
538#define IPV6_MULTICAST_HOPS 10 /* __uint8_t; set/get IP6 multicast hops */
539#define IPV6_MULTICAST_LOOP 11 /* __uint8_t; set/get IP6 mcast loopback */
540#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
541#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
542
543#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
544#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
545#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
546#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */
547#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
548#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
549#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
550#define IPV6_2292DSTOPTS 23 /* bool; destinaion option */
551#define IPV6_2292RTHDR 24 /* ip6_rthdr: routing header */
552
553/* buf/cmsghdr; set/get IPv6 options [obsoleted by RFC3542] */
554#define IPV6_2292PKTOPTIONS 25
555
556#ifdef __APPLE_USE_RFC_2292
557#define IPV6_PKTINFO IPV6_2292PKTINFO
558#define IPV6_HOPLIMIT IPV6_2292HOPLIMIT
559#define IPV6_NEXTHOP IPV6_2292NEXTHOP
560#define IPV6_HOPOPTS IPV6_2292HOPOPTS
561#define IPV6_DSTOPTS IPV6_2292DSTOPTS
562#define IPV6_RTHDR IPV6_2292RTHDR
563#define IPV6_PKTOPTIONS IPV6_2292PKTOPTIONS
564#endif /* __APPLE_USE_RFC_2292 */
565
566#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
567#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
568#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
569#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
570#ifndef KERNEL
571#define IPV6_BINDV6ONLY IPV6_V6ONLY
572#endif /* KERNEL */
573
574
575#if 1 /* IPSEC */
576#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
577#endif /* 1 */
578#define IPV6_FAITH 29 /* deprecated */
579
580#if 1 /* IPV6FIREWALL */
581#define IPV6_FW_ADD 30 /* add a firewall rule to chain */
582#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
583#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
584#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
585#define IPV6_FW_GET 34 /* get entire firewall rule chain */
586#endif /* 1 */
587
588/*
589 * APPLE: NOTE the value of those 2 options is kept unchanged from
590 * previous version of darwin/OS X for binary compatibility reasons
591 * and differ from FreeBSD (values 57 and 61). See below.
592 */
593#define IPV6_RECVTCLASS 35 /* bool; recv traffic class values */
594#define IPV6_TCLASS 36 /* int; send traffic class value */
595
596#ifdef __APPLE_USE_RFC_3542
597/* new socket options introduced in RFC3542 */
598/*
599 * ip6_dest; send dst option before rthdr
600 * APPLE: Value purposely different than FreeBSD (35) to avoid
601 * collision with definition of IPV6_RECVTCLASS in previous
602 * darwin implementations
603 */
604#define IPV6_RTHDRDSTOPTS 57
605
606/*
607 * bool; recv if, dst addr
608 * APPLE: Value purposely different than FreeBSD(36) to avoid
609 * collision with definition of IPV6_TCLASS in previous
610 * darwin implementations
611 */
612#define IPV6_RECVPKTINFO 61
613
614#define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */
615#define IPV6_RECVRTHDR 38 /* bool; recv routing header */
616#define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */
617#define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */
618#ifdef KERNEL
619#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
620#endif
621
622#define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */
623#define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */
624
625/*
626 * mtuinfo; get the current path MTU (sopt), 4 bytes int;
627 * MTU notification (cmsg)
628 */
629#define IPV6_PATHMTU 44
630
631#if 0 /* obsoleted during 2292bis -> 3542 */
632/* no data; ND reachability confirm (cmsg only/not in of RFC3542) */
633#define IPV6_REACHCONF 45
634#endif
635/* more new socket options introduced in RFC3542 */
636#define IPV6_3542PKTINFO 46 /* in6_pktinfo; send if, src addr */
637#define IPV6_3542HOPLIMIT 47 /* int; send hop limit */
638#define IPV6_3542NEXTHOP 48 /* sockaddr; next hop addr */
639#define IPV6_3542HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
640#define IPV6_3542DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
641#define IPV6_3542RTHDR 51 /* ip6_rthdr; send routing header */
642
643#define IPV6_PKTINFO IPV6_3542PKTINFO
644#define IPV6_HOPLIMIT IPV6_3542HOPLIMIT
645#define IPV6_NEXTHOP IPV6_3542NEXTHOP
646#define IPV6_HOPOPTS IPV6_3542HOPOPTS
647#define IPV6_DSTOPTS IPV6_3542DSTOPTS
648#define IPV6_RTHDR IPV6_3542RTHDR
649
650#define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */
651
652#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
653
654/* int; prefer temporary addresses as the source address. */
655#define IPV6_PREFER_TEMPADDR 63
656
657/*
658 * The following option is private; do not use it from user applications.
659 * It is deliberately defined to the same value as IP_MSFILTER.
660 */
661#define IPV6_MSFILTER 74 /* struct __msfilterreq; */
662#endif /* __APPLE_USE_RFC_3542 */
663
664#define IPV6_BOUND_IF 125 /* int; set/get bound interface */
665
666#ifdef PRIVATE
667#define IPV6_NO_IFT_CELLULAR 6969 /* for internal use only */
668#define IPV6_OUT_IF 9696 /* for internal use only */
669#endif /* PRIVATE */
670
671/* to define items, should talk with KAME guys first, for *BSD compatibility */
672
673#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. */
674#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. */
675#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
676
677/*
678 * Defaults and limits for options
679 */
680#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
681#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
682
683/*
684 * The im6o_membership vector for each socket is now dynamically allocated at
685 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized
686 * according to a power-of-two increment.
687 */
688#define IPV6_MIN_MEMBERSHIPS 31
689#define IPV6_MAX_MEMBERSHIPS 4095
690
691/*
692 * Default resource limits for IPv6 multicast source filtering.
693 * These may be modified by sysctl.
694 */
695#define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */
696#define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */
697
698/*
699 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
700 */
701struct ipv6_mreq {
702 struct in6_addr ipv6mr_multiaddr;
703 unsigned int ipv6mr_interface;
704};
705
706/*
707 * IPV6_2292PKTINFO: Packet information(RFC2292 sec 5)
708 */
709struct in6_pktinfo {
710 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
711 unsigned int ipi6_ifindex; /* send/recv interface index */
712};
713
714/*
715 * Control structure for IPV6_RECVPATHMTU socket option.
716 */
717struct ip6_mtuinfo {
718 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */
719 uint32_t ip6m_mtu;
720};
721
722/*
723 * Argument for IPV6_PORTRANGE:
724 * - which range to search when port is unspecified at bind() or connect()
725 */
726#define IPV6_PORTRANGE_DEFAULT 0 /* default range */
727#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
728#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
729
730/*
731 * Definitions for inet6 sysctl operations.
732 *
733 * Third level is protocol number.
734 * Fourth level is desired variable within that protocol.
735 */
736#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
737
738/*
739 * Names for IP sysctl objects
740 */
741#define IPV6CTL_FORWARDING 1 /* act as router */
742#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
743#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
744#ifdef notyet
745#define IPV6CTL_DEFMTU 4 /* default MTU */
746#endif
747#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
748#define IPV6CTL_STATS 6 /* stats */
749#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
750#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
751#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
752#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
753#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
754#define IPV6CTL_ACCEPT_RTADV 12
755#define IPV6CTL_KEEPFAITH 13 /* deprecated */
756#define IPV6CTL_LOG_INTERVAL 14
757#define IPV6CTL_HDRNESTLIMIT 15
758#define IPV6CTL_DAD_COUNT 16
759#define IPV6CTL_AUTO_FLOWLABEL 17
760#define IPV6CTL_DEFMCASTHLIM 18
761#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
762#define IPV6CTL_KAME_VERSION 20
763#define IPV6CTL_USE_DEPRECATED 21 /* use deprec addr (RFC2462 5.5.4) */
764#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
765#if 0 /* obsolete */
766#define IPV6CTL_MAPPED_ADDR 23
767#endif
768#define IPV6CTL_V6ONLY 24
769#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
770#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
771#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
772
773#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses [RFC 4941] */
774#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
775#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
776#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
777#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
778#define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */
779#define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */
780#define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */
781
782#define IPV6CTL_MAXFRAGS 41 /* max fragments */
783#define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for mcast? */
784
785#define IPV6CTL_NEIGHBORGCTHRESH 46
786#define IPV6CTL_MAXIFPREFIXES 47
787#define IPV6CTL_MAXIFDEFROUTERS 48
788#define IPV6CTL_MAXDYNROUTES 49
789#define ICMPV6CTL_ND6_ONLINKNSRFC4861 50
790
791/* New entries should be added here from current IPV6CTL_MAXID value. */
792/* to define items, should talk with KAME guys first, for *BSD compatibility */
793#define IPV6CTL_MAXID 51
794
795#ifdef BSD_KERNEL_PRIVATE
796#define CTL_IPV6PROTO_NAMES { \
797 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
798 { 0, 0 }, \
799 { "tcp6", CTLTYPE_NODE }, \
800 { 0, 0 }, \
801 { 0, 0 }, \
802 { 0, 0 }, \
803 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
804 { 0, 0 }, \
805 { 0, 0 }, \
806 { "udp6", CTLTYPE_NODE }, \
807 { 0, 0 }, \
808 { 0, 0 }, \
809 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
810 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
811 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
812 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
813 { 0, 0 }, \
814 { "ip6", CTLTYPE_NODE }, \
815 { 0, 0 }, \
816 { 0, 0 }, \
817 { 0, 0 }, \
818 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
819 { 0, 0 }, \
820 { "ipsec6", CTLTYPE_NODE }, \
821 { 0, 0 }, \
822 { 0, 0 }, \
823 { 0, 0 }, \
824 { 0, 0 }, \
825 { 0, 0 }, \
826 { 0, 0 }, \
827 { "icmp6", CTLTYPE_NODE }, \
828 { 0, 0 }, \
829 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
830 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
831 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
832 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
833 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
834 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
835 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
836 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
837 { 0, 0 }, \
838 { 0, 0 }, \
839 { 0, 0 }, \
840 { 0, 0 }, \
841}
842/*
843 * Redefinition of mbuf flags
844 */
845#define M_AUTHIPHDR M_PROTO2
846#define M_DECRYPTED M_PROTO3
847#define M_AUTHIPDGM M_PROTO5
848
849struct cmsghdr;
850struct mbuf;
851struct ifnet;
852struct in6_aliasreq;
853struct lltable;
854
855extern struct lltable * in6_lltattach(struct ifnet *ifp);
856extern uint16_t in6_pseudo(const struct in6_addr *, const struct in6_addr *,
857 uint32_t);
858extern u_int16_t inet6_cksum(struct mbuf *, uint32_t, uint32_t, uint32_t);
859extern u_int16_t inet6_cksum_buffer(const uint8_t *, uint32_t, uint32_t,
860 uint32_t);
861
862#define in6_cksum(_m, _n, _o, _l) \
863 inet6_cksum(_m, _n, _o, _l)
864#define in6_cksum_buffer(_b, _n, _o, _l) \
865 inet6_cksum_buffer(_b, _n, _o, _l)
866
867extern int in6_addrscope(struct in6_addr *);
868extern struct in6_ifaddr *in6_ifawithscope(struct ifnet *, struct in6_addr *);
869extern struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);
870
871struct sockaddr;
872
873extern void in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6);
874extern void in6_sin_2_v4mapsin6(struct sockaddr_in *sin,
875 struct sockaddr_in6 *sin6);
876extern void in6_sin6_2_sin_in_sock(struct sockaddr *nam);
877extern int in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam);
878
879extern uint32_t in6_finalize_cksum(struct mbuf *, uint32_t, int32_t,
880 int32_t, uint32_t);
881
882#define in6_delayed_cksum(_m) \
883 ((void) in6_finalize_cksum(_m, 0, 0, -1, CSUM_DELAY_IPV6_DATA))
884#define in6_delayed_cksum_offset(_m, _o, _s, _p) \
885 ((void) in6_finalize_cksum(_m, _o, _s, _p, CSUM_DELAY_IPV6_DATA))
886
887/* IPv6 protocol events */
888extern struct eventhandler_lists_ctxt in6_evhdlr_ctxt;
889/*
890 * XXX Avoid reordering the enum values below.
891 * If the order is changed, please make sure
892 * in6_event2kev_array is also changed to reflect the
893 * change in order of the enums
894 */
895typedef enum {
896 /* Address events */
897 /*
898 * XXX To avoid duplicacy and also for correctness
899 * only report these for link local and stable addresses
900 * NOTE: Link local address can never be marked detached
901 * or duplicated.
902 */
903 IN6_ADDR_MARKED_DUPLICATED,
904 IN6_ADDR_MARKED_DETACHED,
905 IN6_ADDR_MARKED_DEPRECATED,
906
907 /* Expiry events */
908 IN6_NDP_RTR_EXPIRY,
909 IN6_NDP_PFX_EXPIRY,
910 IN6_NDP_ADDR_EXPIRY,
911
912 /* XXX DNS expiry needs to be handled by user-space */
913 /* MAX */
914 IN6_EVENT_MAX,
915} in6_evhdlr_code_t;
916
917struct in6_event2kev {
918 in6_evhdlr_code_t in6_event_code;
919 uint32_t in6_event_kev_subclass;
920 uint32_t in6_event_kev_code;
921 const char *in6_event_str;
922};
923extern struct in6_event2kev in6_event2kev_array[];
924extern void in6_eventhdlr_callback(struct eventhandler_entry_arg, in6_evhdlr_code_t,
925 struct ifnet *, struct in6_addr *, uint32_t);
926extern void in6_event_enqueue_nwk_wq_entry(in6_evhdlr_code_t,
927 struct ifnet *, struct in6_addr *, uint32_t);
928
929typedef void (*in6_event_fn) (struct eventhandler_entry_arg, in6_evhdlr_code_t,
930 struct ifnet *, struct in6_addr *, uint32_t);
931EVENTHANDLER_DECLARE(in6_event, in6_event_fn);
932#endif /* BSD_KERNEL_PRIVATE */
933
934#ifdef PRIVATE
935/* CLAT46 events */
936typedef enum in6_clat46_evhdlr_code_t {
937 IN6_CLAT46_EVENT_V4_FLOW,
938 IN6_CLAT46_EVENT_V6_ADDR_CONFFAIL,
939} in6_clat46_evhdlr_code_t;
940
941struct kev_netevent_clat46_data {
942 in6_clat46_evhdlr_code_t clat46_event_code;
943 pid_t epid;
944 uuid_t euuid;
945};
946#endif /* PRIVATE */
947
948#ifdef BSD_KERNEL_PRIVATE
949/* CLAT46 events */
950extern struct eventhandler_lists_ctxt in6_clat46_evhdlr_ctxt;
951extern void in6_clat46_eventhdlr_callback(struct eventhandler_entry_arg,
952 in6_clat46_evhdlr_code_t, pid_t, uuid_t);
953extern void in6_clat46_event_enqueue_nwk_wq_entry(in6_clat46_evhdlr_code_t,
954 pid_t, uuid_t);
955
956typedef void (*in6_clat46_event_fn) (struct eventhandler_entry_arg, in6_clat46_evhdlr_code_t,
957 pid_t, uuid_t);
958EVENTHANDLER_DECLARE(in6_clat46_event, in6_clat46_event_fn);
959#endif /* BSD_KERNEL_PRIVATE */
960
961#ifdef KERNEL_PRIVATE
962/* exporte for ApplicationFirewall */
963extern int in6_localaddr(struct in6_addr *);
964extern int in6addr_local(struct in6_addr *);
965#endif /* KERNEL_PRIVATE */
966
967#ifndef KERNEL
968__BEGIN_DECLS
969struct cmsghdr;
970
971extern int inet6_option_space(int);
972extern int inet6_option_init(void *, struct cmsghdr **, int);
973extern int inet6_option_append(struct cmsghdr *, const __uint8_t *, int, int);
974extern __uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
975extern int inet6_option_next(const struct cmsghdr *, __uint8_t **);
976extern int inet6_option_find(const struct cmsghdr *, __uint8_t **, int);
977
978extern size_t inet6_rthdr_space(int, int);
979extern struct cmsghdr *inet6_rthdr_init(void *, int);
980extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *,
981 unsigned int);
982extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);
983#if 0 /* not implemented yet */
984extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *);
985#endif
986extern int inet6_rthdr_segments(const struct cmsghdr *);
987extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);
988extern int inet6_rthdr_getflags(const struct cmsghdr *, int);
989
990extern int inet6_opt_init(void *, socklen_t);
991extern int inet6_opt_append(void *, socklen_t, int, __uint8_t, socklen_t,
992 __uint8_t, void **);
993extern int inet6_opt_finish(void *, socklen_t, int);
994extern int inet6_opt_set_val(void *, int, void *, socklen_t);
995
996extern int inet6_opt_next(void *, socklen_t, int, __uint8_t *, socklen_t *,
997 void **);
998extern int inet6_opt_find(void *, socklen_t, int, __uint8_t, socklen_t *,
999 void **);
1000extern int inet6_opt_get_val(void *, int, void *, socklen_t);
1001extern socklen_t inet6_rth_space(int, int);
1002extern void *inet6_rth_init(void *, socklen_t, int, int);
1003extern int inet6_rth_add(void *, const struct in6_addr *);
1004extern int inet6_rth_reverse(const void *, void *);
1005extern int inet6_rth_segments(const void *);
1006extern struct in6_addr *inet6_rth_getaddr(const void *, int);
1007extern void addrsel_policy_init(void);
1008
1009__END_DECLS
1010#endif /* !KERNEL */
1011#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
1012#endif /* !_NETINET6_IN6_H_ */
1013