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b0d623f7 1/*
316670eb 2 * Copyright (c) 2008-2012 Apple Inc. All rights reserved.
b0d623f7
A		 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
9bccf70c
A		 29/* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.4 2001/07/04 09:45:23 ume Exp $ */
30/* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */
1c79356b
A		 31
32/*
33 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
34 * 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 * 3. Neither the name of the project 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 PROJECT 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 PROJECT 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
61/*
62 * Copyright (c) 1982, 1986, 1990, 1993
63 * The Regents of the University of California. All rights reserved.
64 *
65 * Redistribution and use in source and binary forms, with or without
66 * modification, are permitted provided that the following conditions
67 * are met:
68 * 1. Redistributions of source code must retain the above copyright
69 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in the
72 * documentation and/or other materials provided with the distribution.
73 * 3. All advertising materials mentioning features or use of this software
74 * must display the following acknowledgement:
75 * This product includes software developed by the University of
76 * California, Berkeley and its contributors.
77 * 4. Neither the name of the University nor the names of its contributors
78 * may be used to endorse or promote products derived from this software
79 * without specific prior written permission.
80 *
81 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
82 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
83 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
84 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
85 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
86 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
87 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
88 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
89 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
90 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
91 * SUCH DAMAGE.
92 *
93 * @(#)in.h 8.3 (Berkeley) 1/3/94
94 */
95
96#ifndef __KAME_NETINET_IN_H_INCLUDED_
9bccf70c 97#error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
1c79356b
A		 98#endif
99
100#ifndef _NETINET6_IN6_H_
101#define _NETINET6_IN6_H_
9bccf70c 102#include <sys/appleapiopts.h>
91447636
A		 103#include <sys/_types.h>
104
105
106#ifndef _SA_FAMILY_T
107#define _SA_FAMILY_T
108typedef __uint8_t sa_family_t;
109#endif
1c79356b
A		 110
111/*
112 * Identification of the network protocol stack
9bccf70c
A		 113 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
114 * has the table of implementation/integration differences.
1c79356b
A		 115 */
116#define __KAME__
6d2010ae 117#define __KAME_VERSION "2009/apple-darwin"
1c79356b 118
2d21ac55 119#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
1c79356b
A		 120/*
121 * Local port number conventions:
122 *
123 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
124 * unless a kernel is compiled with IPNOPRIVPORTS defined.
125 *
126 * When a user does a bind(2) or connect(2) with a port number of zero,
127 * a non-conflicting local port address is chosen.
128 *
9bccf70c 129 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
1c79356b
A		 130 * that is settable by sysctl(3); net.inet.ip.anonportmin and
131 * net.inet.ip.anonportmax respectively.
132 *
133 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
134 * default assignment range.
135 *
136 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
137 *
138 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
139 * and exists only for FreeBSD compatibility purposes.
140 *
141 * The value IP_PORTRANGE_LOW changes the range to the "low" are
142 * that is (by convention) restricted to privileged processes.
143 * This convention is based on "vouchsafe" principles only.
144 * It is only secure if you trust the remote host to restrict these ports.
145 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
146 */
147
148#define IPV6PORT_RESERVED 1024
149#define IPV6PORT_ANONMIN 49152
150#define IPV6PORT_ANONMAX 65535
151#define IPV6PORT_RESERVEDMIN 600
152#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
2d21ac55 153#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
1c79356b
A		 154
155/*
156 * IPv6 address
157 */
158struct in6_addr {
159 union {
91447636
A		 160 __uint8_t __u6_addr8[16];
161 __uint16_t __u6_addr16[8];
162 __uint32_t __u6_addr32[4];
1c79356b
A		 163 } __u6_addr; /* 128-bit IP6 address */
164};
165
166#define s6_addr __u6_addr.__u6_addr8
167#ifdef KERNEL /*XXX nonstandard*/
168#define s6_addr8 __u6_addr.__u6_addr8
169#define s6_addr16 __u6_addr.__u6_addr16
170#define s6_addr32 __u6_addr.__u6_addr32
171#endif
172
173#define INET6_ADDRSTRLEN 46
174
175/*
176 * Socket address for IPv6
177 */
2d21ac55 178#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
1c79356b 179#define SIN6_LEN
2d21ac55 180#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
1c79356b 181struct sockaddr_in6 {
91447636
A		 182 __uint8_t sin6_len; /* length of this struct(sa_family_t)*/
183 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */
184 in_port_t sin6_port; /* Transport layer port # (in_port_t)*/
185 __uint32_t sin6_flowinfo; /* IP6 flow information */
1c79356b 186 struct in6_addr sin6_addr; /* IP6 address */
91447636 187 __uint32_t sin6_scope_id; /* scope zone index */
1c79356b
A		 188};
189
b0d623f7 190#ifdef KERNEL /*XXX nonstandard*/
1c79356b
A		 191/*
192 * Local definition for masks
193 */
1c79356b 194#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
6d2010ae
A		 195#define IN6MASK7 {{{ 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
196 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
197#define IN6MASK16 {{{ 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
198 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
1c79356b
A		 199#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
200 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
201#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
202 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
203#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
204 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
205#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
206 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
207#endif
208
91447636 209#ifdef KERNEL_PRIVATE
9bccf70c
A		 210extern const struct sockaddr_in6 sa6_any;
211
1c79356b 212extern const struct in6_addr in6mask0;
6d2010ae
A		 213extern const struct in6_addr in6mask7;
214extern const struct in6_addr in6mask16;
1c79356b
A		 215extern const struct in6_addr in6mask32;
216extern const struct in6_addr in6mask64;
217extern const struct in6_addr in6mask96;
218extern const struct in6_addr in6mask128;
316670eb
A		 219
220#define SIN6(s) ((struct sockaddr_in6 *)(void *)s)
221#define satosin6(sa) SIN6(sa)
222#define sin6tosa(sin6) ((struct sockaddr *)(void *)(sin6))
0c530ab8
A		 223#endif /* KERNEL_PRIVATE */
224
b0d623f7 225#ifdef KERNEL /*XXX nonstandard*/
1c79356b
A		 226/*
227 * Macros started with IPV6_ADDR is KAME local
228 */
1c79356b
A		 229#if BYTE_ORDER == BIG_ENDIAN
230#define IPV6_ADDR_INT32_ONE 1
231#define IPV6_ADDR_INT32_TWO 2
232#define IPV6_ADDR_INT32_MNL 0xff010000
233#define IPV6_ADDR_INT32_MLL 0xff020000
234#define IPV6_ADDR_INT32_SMP 0x0000ffff
235#define IPV6_ADDR_INT16_ULL 0xfe80
236#define IPV6_ADDR_INT16_USL 0xfec0
237#define IPV6_ADDR_INT16_MLL 0xff02
238#elif BYTE_ORDER == LITTLE_ENDIAN
239#define IPV6_ADDR_INT32_ONE 0x01000000
240#define IPV6_ADDR_INT32_TWO 0x02000000
241#define IPV6_ADDR_INT32_MNL 0x000001ff
242#define IPV6_ADDR_INT32_MLL 0x000002ff
243#define IPV6_ADDR_INT32_SMP 0xffff0000
244#define IPV6_ADDR_INT16_ULL 0x80fe
245#define IPV6_ADDR_INT16_USL 0xc0fe
246#define IPV6_ADDR_INT16_MLL 0x02ff
247#endif
248#endif
249
250/*
251 * Definition of some useful macros to handle IP6 addresses
252 */
253#define IN6ADDR_ANY_INIT \
254 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
255 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
256#define IN6ADDR_LOOPBACK_INIT \
257 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
258 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
2d21ac55 259#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
1c79356b
A		 260#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
261 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
262 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
6d2010ae
A		 263#define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \
264 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
265 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
1c79356b
A		 266#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
267 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
268 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
269#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
270 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
271 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
6d2010ae
A		 272#define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \
273 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
274 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}}
275#define IN6ADDR_V4MAPPED_INIT \
276 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
277 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
2d21ac55 278#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
1c79356b 279
1c79356b
A		 280extern const struct in6_addr in6addr_any;
281extern const struct in6_addr in6addr_loopback;
2d21ac55 282#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
1c79356b
A		 283extern const struct in6_addr in6addr_nodelocal_allnodes;
284extern const struct in6_addr in6addr_linklocal_allnodes;
285extern const struct in6_addr in6addr_linklocal_allrouters;
6d2010ae 286extern const struct in6_addr in6addr_linklocal_allv2routers;
2d21ac55 287#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
1c79356b
A		 288
289/*
290 * Equality
291 * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
292 * does not supply memcmp(). For userland memcmp() is preferred as it is
293 * in ANSI standard.
294 */
295#ifdef KERNEL
296#define IN6_ARE_ADDR_EQUAL(a, b) \
9bccf70c 297 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
1c79356b 298#else
2d21ac55 299#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
1c79356b 300#define IN6_ARE_ADDR_EQUAL(a, b) \
9bccf70c 301 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
2d21ac55 302#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
9bccf70c
A		 303#endif
304
305#ifdef KERNEL /* non standard */
306/* see if two addresses are equal in a scope-conscious manner. */
307#define SA6_ARE_ADDR_EQUAL(a, b) \
308 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
309 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \
310 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0))
1c79356b
A		 311#endif
312
313/*
314 * Unspecified
315 */
316#define IN6_IS_ADDR_UNSPECIFIED(a) \
91447636
A		 317 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
318 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
319 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
320 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
1c79356b
A		 321
322/*
323 * Loopback
324 */
325#define IN6_IS_ADDR_LOOPBACK(a) \
91447636
A		 326 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
327 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
328 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
329 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
1c79356b
A		 330
331/*
332 * IPv4 compatible
333 */
334#define IN6_IS_ADDR_V4COMPAT(a) \
91447636
A		 335 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
336 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
337 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
338 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
339 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
1c79356b
A		 340
341/*
342 * Mapped
343 */
344#define IN6_IS_ADDR_V4MAPPED(a) \
91447636
A		 345 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
346 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
347 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
1c79356b 348
6d2010ae
A		 349/*
350 * 6to4
351 */
352#define IN6_IS_ADDR_6TO4(x) (ntohs((x)->s6_addr16[0]) == 0x2002)
353
1c79356b
A		 354/*
355 * KAME Scope Values
356 */
357
358#ifdef KERNEL /*XXX nonstandard*/
359#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
b0d623f7 360#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
1c79356b
A		 361#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
362#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
363#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
364#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
365#else
366#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
6d2010ae 367#define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
1c79356b
A		 368#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
369#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
370#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
371#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
372#endif
373
374/*
375 * Unicast Scope
376 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
377 */
378#define IN6_IS_ADDR_LINKLOCAL(a) \
379 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
380#define IN6_IS_ADDR_SITELOCAL(a) \
381 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
382
383/*
384 * Multicast
385 */
386#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
387
6d2010ae
A		 388/*
389 * Unique Local IPv6 Unicast Addresses (per RFC 4193)
390 */
391#define IN6_IS_ADDR_UNIQUE_LOCAL(a) (((a)->s6_addr[0] == 0xfc) || ((a)->s6_addr[0] == 0xfd))
392
1c79356b
A		 393#ifdef KERNEL /*XXX nonstandard*/
394#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
395#else
396#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
397#endif
398
399/*
400 * Multicast Scope
401 */
402#ifdef KERNEL /*refers nonstandard items */
403#define IN6_IS_ADDR_MC_NODELOCAL(a) \
404 (IN6_IS_ADDR_MULTICAST(a) && \
405 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
b0d623f7
A		 406#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
407 (IN6_IS_ADDR_MULTICAST(a) && \
408 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
1c79356b
A		 409#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
410 (IN6_IS_ADDR_MULTICAST(a) && \
411 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
412#define IN6_IS_ADDR_MC_SITELOCAL(a) \
413 (IN6_IS_ADDR_MULTICAST(a) && \
414 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
415#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
416 (IN6_IS_ADDR_MULTICAST(a) && \
417 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
418#define IN6_IS_ADDR_MC_GLOBAL(a) \
419 (IN6_IS_ADDR_MULTICAST(a) && \
420 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
421#else
422#define IN6_IS_ADDR_MC_NODELOCAL(a) \
423 (IN6_IS_ADDR_MULTICAST(a) && \
424 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
425#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
426 (IN6_IS_ADDR_MULTICAST(a) && \
427 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
428#define IN6_IS_ADDR_MC_SITELOCAL(a) \
429 (IN6_IS_ADDR_MULTICAST(a) && \
430 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
431#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
432 (IN6_IS_ADDR_MULTICAST(a) && \
433 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
434#define IN6_IS_ADDR_MC_GLOBAL(a) \
435 (IN6_IS_ADDR_MULTICAST(a) && \
436 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
437#endif
438
9bccf70c 439#ifdef KERNEL /*nonstandard*/
1c79356b
A		 440/*
441 * KAME Scope
442 */
1c79356b
A		 443#define IN6_IS_SCOPE_LINKLOCAL(a) \
444 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
445 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
9bccf70c 446
b0d623f7
A		 447#define IN6_IS_SCOPE_EMBED(a) \
448 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
449 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
450 (IN6_IS_ADDR_MC_INTFACELOCAL(a)))
451
9bccf70c
A		 452#define IFA6_IS_DEPRECATED(a) \
453 ((a)->ia6_lifetime.ia6t_preferred != 0 && \
91447636 454 (a)->ia6_lifetime.ia6t_preferred < timenow.tv_sec)
9bccf70c
A		 455#define IFA6_IS_INVALID(a) \
456 ((a)->ia6_lifetime.ia6t_expire != 0 && \
91447636
A		 457 (a)->ia6_lifetime.ia6t_expire < timenow.tv_sec)
458#endif /* KERNEL */
1c79356b
A		 459
460/*
461 * IP6 route structure
462 */
2d21ac55 463#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
91447636 464#ifdef PRIVATE
1c79356b 465struct route_in6 {
b0d623f7
A		 466 /*
467 * N.B: struct route_in6 must begin with ro_rt and ro_flags
468 * because the code does some casts of a 'struct route_in6 *'
469 * to a 'struct route *'.
470 */
471 struct rtentry *ro_rt;
472 __uint32_t ro_flags; /* route flags */
473 struct sockaddr_in6 ro_dst;
1c79356b 474};
91447636 475#endif /* PRIVATE */
2d21ac55 476#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
1c79356b
A		 477
478/*
479 * Options for use with [gs]etsockopt at the IPV6 level.
480 * First word of comment is data type; bool is stored in int.
481 */
482/* no hdrincl */
2d21ac55 483#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
6d2010ae
A		 484/*
485 * RFC 3542 define the following socket options in a manner incompatible
486 * with RFC 2292:
487 * IPV6_PKTINFO
488 * IPV6_HOPLIMIT
489 * IPV6_NEXTHOP
490 * IPV6_HOPOPTS
491 * IPV6_DSTOPTS
492 * IPV6_RTHDR
493 *
494 * To use the new IPv6 Sockets options introduced by RFC 3542
495 * the constant __APPLE_USE_RFC_3542 must be defined before
496 * including <netinet/in.h>
497 *
498 * To use the old IPv6 Sockets options from RFC 2292
499 * the constant __APPLE_USE_RFC_2292 must be defined before
500 * including <netinet/in.h>
501 *
502 * Note that eventually RFC 3542 is going to be the
503 * default and RFC 2292 will be obsolete.
504 */
505#ifdef XNU_KERNEL_PRIVATE
506#define __APPLE_USE_RFC_3542 1
507#endif /* XNU_KERNEL_PRIVATE */
508
509#if defined(__APPLE_USE_RFC_3542) && defined(__APPLE_USE_RFC_2292)
510#error "__APPLE_USE_RFC_3542 and __APPLE_USE_RFC_2292 cannot be both defined"
511#endif
512
1c79356b
A		 513#if 0 /* the followings are relic in IPv4 and hence are disabled */
514#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
515#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
516#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
517#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
518#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
0c530ab8 519#endif /* 0 */
1c79356b 520#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
2d21ac55 521#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
1c79356b 522#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
91447636
A		 523#define IPV6_MULTICAST_IF 9 /* __uint8_t; set/get IP6 multicast i/f */
524#define IPV6_MULTICAST_HOPS 10 /* __uint8_t; set/get IP6 multicast hops */
525#define IPV6_MULTICAST_LOOP 11 /* __uint8_t; set/get IP6 mcast loopback */
1c79356b
A		 526#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
527#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
91447636 528
2d21ac55 529#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
1c79356b
A		 530#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
531#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
6d2010ae
A		 532#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */
533#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
534#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
535#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
536#define IPV6_2292DSTOPTS 23 /* bool; destinaion option */
537#define IPV6_2292RTHDR 24 /* ip6_rthdr: routing header */
538#define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
539 /* obsoleted by RFC3542 */
540
541#ifdef __APPLE_USE_RFC_2292
542#define IPV6_PKTINFO IPV6_2292PKTINFO
543#define IPV6_HOPLIMIT IPV6_2292HOPLIMIT
544#define IPV6_NEXTHOP IPV6_2292NEXTHOP
545#define IPV6_HOPOPTS IPV6_2292HOPOPTS
546#define IPV6_DSTOPTS IPV6_2292DSTOPTS
547#define IPV6_RTHDR IPV6_2292RTHDR
548#define IPV6_PKTOPTIONS IPV6_2292PKTOPTIONS
549#endif /* __APPLE_USE_RFC_2292 */
9bccf70c 550
1c79356b 551#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
2d21ac55 552#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
9bccf70c 553#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
2d21ac55 554#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
55e303ae 555#ifndef KERNEL
9bccf70c 556#define IPV6_BINDV6ONLY IPV6_V6ONLY
0c530ab8 557#endif /* KERNEL */
1c79356b 558
55e303ae 559
1c79356b
A		 560#if 1 /*IPSEC*/
561#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
0c530ab8 562#endif /* 1 */
316670eb 563#define IPV6_FAITH 29 /* deprecated */
1c79356b
A		 564
565#if 1 /*IPV6FIREWALL*/
566#define IPV6_FW_ADD 30 /* add a firewall rule to chain */
567#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
568#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
569#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
570#define IPV6_FW_GET 34 /* get entire firewall rule chain */
0c530ab8 571#endif /* 1 */
1c79356b 572
6d2010ae
A		 573/* APPLE: NOTE the value of those 2 options is kept unchanged from
574 * previous version of darwin/OS X for binary compatibility reasons
575 * and differ from FreeBSD (values 57 and 61). See below.
576 */
577#define IPV6_RECVTCLASS 35 /* bool; recv traffic class values */
578#define IPV6_TCLASS 36 /* int; send traffic class value */
579
580#ifdef __APPLE_USE_RFC_3542
581/* new socket options introduced in RFC3542 */
582#define IPV6_RTHDRDSTOPTS 57 /* ip6_dest; send dst option before rthdr
583 * APPLE: Value purposely different than FreeBSD (35) to avoid
584 * collision with definition of IPV6_RECVTCLASS in previous
585 * darwin implementations */
586
587#define IPV6_RECVPKTINFO 61 /* bool; recv if, dst addr
588 * APPLE: Value purposely different than FreeBSD (36) to avoid
589 * collision with definition of IPV6_TCLASS in previous
590 * darwin implementations */
591
592#define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */
593#define IPV6_RECVRTHDR 38 /* bool; recv routing header */
594#define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */
595#define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */
596#ifdef KERNEL
597#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
598#endif
599
600#define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */
601#define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */
602
603#define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt),
604 4 bytes int; MTU notification (cmsg) */
605#if 0 /*obsoleted during 2292bis -> 3542*/
606#define IPV6_REACHCONF 45 /* no data; ND reachability confirm
607 (cmsg only/not in of RFC3542) */
608#endif
609/* more new socket options introduced in RFC3542 */
610#define IPV6_3542PKTINFO 46 /* in6_pktinfo; send if, src addr */
611#define IPV6_3542HOPLIMIT 47 /* int; send hop limit */
612#define IPV6_3542NEXTHOP 48 /* sockaddr; next hop addr */
613#define IPV6_3542HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
614#define IPV6_3542DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
615#define IPV6_3542RTHDR 51 /* ip6_rthdr; send routing header */
616
617#define IPV6_PKTINFO IPV6_3542PKTINFO
618#define IPV6_HOPLIMIT IPV6_3542HOPLIMIT
619#define IPV6_NEXTHOP IPV6_3542NEXTHOP
620#define IPV6_HOPOPTS IPV6_3542HOPOPTS
621#define IPV6_DSTOPTS IPV6_3542DSTOPTS
622#define IPV6_RTHDR IPV6_3542RTHDR
623
624#define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */
625
626#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
627
628#define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as
629 * the source address.
630 */
631
632/*
633 * The following option is private; do not use it from user applications.
634 * It is deliberately defined to the same value as IP_MSFILTER.
635 */
636#define IPV6_MSFILTER 74 /* struct __msfilterreq;
637 * set/get multicast source filter list.
638 */
639#endif /* __APPLE_USE_RFC_3542 */
640
641#define IPV6_BOUND_IF 125 /* int; set/get bound interface */
642
643#ifdef PRIVATE
644#define IPV6_NO_IFT_CELLULAR 6969 /* for internal use only */
645#define IPV6_OUT_IF 9696 /* for internal use only */
646#endif /* PRIVATE */
b0d623f7 647
9bccf70c 648/* to define items, should talk with KAME guys first, for *BSD compatibility */
1c79356b
A		 649
650#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
651#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
652#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
653
654/*
655 * Defaults and limits for options
656 */
657#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
658#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
659
6d2010ae
A		 660/*
661 * The im6o_membership vector for each socket is now dynamically allocated at
662 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized
663 * according to a power-of-two increment.
664 */
665#define IPV6_MIN_MEMBERSHIPS 31
666#define IPV6_MAX_MEMBERSHIPS 4095
667
668/*
669 * Default resource limits for IPv6 multicast source filtering.
670 * These may be modified by sysctl.
671 */
672#define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */
673#define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */
674
1c79356b
A		 675/*
676 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
677 */
678struct ipv6_mreq {
679 struct in6_addr ipv6mr_multiaddr;
9bccf70c 680 unsigned int ipv6mr_interface;
1c79356b
A		 681};
682
683/*
6d2010ae 684 * IPV6_2292PKTINFO: Packet information(RFC2292 sec 5)
1c79356b
A		 685 */
686struct in6_pktinfo {
9bccf70c
A		 687 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
688 unsigned int ipi6_ifindex; /* send/recv interface index */
1c79356b
A		 689};
690
6d2010ae
A		 691/*
692 * Control structure for IPV6_RECVPATHMTU socket option.
693 */
694struct ip6_mtuinfo {
695 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */
696 uint32_t ip6m_mtu;
697};
698
1c79356b
A		 699/*
700 * Argument for IPV6_PORTRANGE:
701 * - which range to search when port is unspecified at bind() or connect()
702 */
703#define IPV6_PORTRANGE_DEFAULT 0 /* default range */
704#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
705#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
706
1c79356b
A		 707/*
708 * Definitions for inet6 sysctl operations.
709 *
710 * Third level is protocol number.
711 * Fourth level is desired variable within that protocol.
712 */
713#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
714
91447636
A		 715/*
716 * Names for IP sysctl objects
717 */
718#define IPV6CTL_FORWARDING 1 /* act as router */
719#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
720#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
721#ifdef notyet
722#define IPV6CTL_DEFMTU 4 /* default MTU */
723#endif
724#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
725#define IPV6CTL_STATS 6 /* stats */
726#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
727#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
728#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
729#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
730#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
731#define IPV6CTL_ACCEPT_RTADV 12
316670eb 732#define IPV6CTL_KEEPFAITH 13 /* deprecated */
91447636
A		 733#define IPV6CTL_LOG_INTERVAL 14
734#define IPV6CTL_HDRNESTLIMIT 15
735#define IPV6CTL_DAD_COUNT 16
736#define IPV6CTL_AUTO_FLOWLABEL 17
737#define IPV6CTL_DEFMCASTHLIM 18
738#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
739#define IPV6CTL_KAME_VERSION 20
740#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
741#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
742#if 0 /*obsolete*/
743#define IPV6CTL_MAPPED_ADDR 23
744#endif
745#define IPV6CTL_V6ONLY 24
746#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
747#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
748#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
749
6d2010ae 750#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses [RFC 4941] */
91447636
A		 751#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
752#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
753#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
754#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
6d2010ae
A		 755#define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */
756#define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */
757#define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */
91447636 758
6d2010ae
A		 759#define IPV6CTL_MAXFRAGS 41 /* max fragments */
760#define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */
91447636 761
e2fac8b1
A		 762#define IPV6CTL_NEIGHBORGCTHRESH 46
763#define IPV6CTL_MAXIFPREFIXES 47
764#define IPV6CTL_MAXIFDEFROUTERS 48
765#define IPV6CTL_MAXDYNROUTES 49
6d2010ae 766#define ICMPV6CTL_ND6_ONLINKNSRFC4861 50
e2fac8b1 767
91447636
A		 768/* New entries should be added here from current IPV6CTL_MAXID value. */
769/* to define items, should talk with KAME guys first, for *BSD compatibility */
6d2010ae 770#define IPV6CTL_MAXID 51
91447636
A		 771
772#ifdef KERNEL_PRIVATE
1c79356b
A		 773#define CTL_IPV6PROTO_NAMES { \
774 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
775 { 0, 0 }, \
776 { "tcp6", CTLTYPE_NODE }, \
777 { 0, 0 }, \
778 { 0, 0 }, \
779 { 0, 0 }, \
780 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
781 { 0, 0 }, \
782 { 0, 0 }, \
783 { "udp6", CTLTYPE_NODE }, \
784 { 0, 0 }, \
785 { 0, 0 }, \
786 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
787 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
788 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
789 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
790 { 0, 0 }, \
791 { "ip6", CTLTYPE_NODE }, \
792 { 0, 0 }, \
793 { 0, 0 }, \
794 { 0, 0 }, \
795 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
796 { 0, 0 }, \
797 { "ipsec6", CTLTYPE_NODE }, \
798 { 0, 0 }, \
799 { 0, 0 }, \
800 { 0, 0 }, \
801 { 0, 0 }, \
802 { 0, 0 }, \
803 { 0, 0 }, \
804 { "icmp6", CTLTYPE_NODE }, \
805 { 0, 0 }, \
806 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
807 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
808 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
814 { 0, 0 }, \
815 { 0, 0 }, \
816 { 0, 0 }, \
817 { "pim6", CTLTYPE_NODE }, \
818}
9bccf70c
A		 819/*
820 * Redefinition of mbuf flags
821 */
822#define M_AUTHIPHDR M_PROTO2
823#define M_DECRYPTED M_PROTO3
9bccf70c
A		 824#define M_AUTHIPDGM M_PROTO5
825
1c79356b 826struct cmsghdr;
9bccf70c
A		 827struct mbuf;
828struct ifnet;
55e303ae 829struct in6_aliasreq;
1c79356b 830
2d21ac55
A		 831#define in6_cksum(m, n, o, l) inet6_cksum(m, n, o, l)
832
833extern u_int16_t inet6_cksum(struct mbuf *m, unsigned int proto,
834 unsigned int offset, unsigned int transport_len);
835
836extern int in6_localaddr(struct in6_addr *);
837extern int in6_addrscope(struct in6_addr *);
838extern struct in6_ifaddr *in6_ifawithscope(struct ifnet *, struct in6_addr *);
839extern struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);
b0d623f7 840extern int in6_if_up(struct ifnet *, struct in6_aliasreq *);
1c79356b
A		 841struct sockaddr;
842
2d21ac55
A		 843extern void in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6);
844extern void in6_sin_2_v4mapsin6(struct sockaddr_in *sin,
845 struct sockaddr_in6 *sin6);
846extern void in6_sin6_2_sin_in_sock(struct sockaddr *nam);
b0d623f7 847extern int in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam);
6d2010ae 848extern void in6_delayed_cksum(struct mbuf *, u_int16_t);
2d21ac55 849extern int in6addr_local(struct in6_addr *);
6d2010ae
A		 850
851#define DEBUG_HWCKSUM 1 /* IPv6 Hardware checksum on/off */
852/*
853 * in6_cksum_phdr:
854 *
855 * Compute significant parts of the IPv6 checksum pseudo-header
856 * for use in a delayed TCP/UDP checksum calculation.
857 *
858 * Args:
859 *
860 * src Source IPv6 address
861 * dst Destination IPv6 address
862 * len htonl(proto-hdr-len)
863 * nxt htonl(next-proto-number)
864 *
865 * NOTE: We expect the src and dst addresses to be 16-bit
866 * aligned!
867 */
868static __inline u_int16_t __unused
869in6_cksum_phdr(const struct in6_addr *src, const struct in6_addr *dst,
870 u_int32_t len, u_int32_t nxt)
871{
872 u_int32_t sum = 0;
873 const u_int16_t *w;
874
875 /*LINTED*/
876 w = (const u_int16_t *) src;
877 sum += w[0];
878 if (!IN6_IS_SCOPE_LINKLOCAL(src))
879 sum += w[1];
880 sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5];
881 sum += w[6]; sum += w[7];
882
883 /*LINTED*/
884 w = (const u_int16_t *) dst;
885 sum += w[0];
886 if (!IN6_IS_SCOPE_LINKLOCAL(dst))
887 sum += w[1];
888 sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5];
889 sum += w[6]; sum += w[7];
890
891 sum += (u_int16_t)(len >> 16) + (u_int16_t)(len /*& 0xffff*/);
892
893 sum += (u_int16_t)(nxt >> 16) + (u_int16_t)(nxt /*& 0xffff*/);
894
895 sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/);
896
897 if (sum > 0xffff)
898 sum -= 0xffff;
899
900 return (sum);
901}
0c530ab8 902#endif /* KERNEL_PRIVATE */
1c79356b 903
91447636 904#ifndef KERNEL
1c79356b
A		 905__BEGIN_DECLS
906struct cmsghdr;
907
91447636
A		 908extern int inet6_option_space(int);
909extern int inet6_option_init(void *, struct cmsghdr **, int);
910extern int inet6_option_append(struct cmsghdr *, const __uint8_t *,
911 int, int);
912extern __uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
913extern int inet6_option_next(const struct cmsghdr *, __uint8_t **);
914extern int inet6_option_find(const struct cmsghdr *, __uint8_t **, int);
915
916extern size_t inet6_rthdr_space(int, int);
917extern struct cmsghdr *inet6_rthdr_init(void *, int);
918extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *,
919 unsigned int);
920extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);
1c79356b 921#if 0 /* not implemented yet */
91447636 922extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *);
1c79356b 923#endif
91447636
A		 924extern int inet6_rthdr_segments(const struct cmsghdr *);
925extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);
926extern int inet6_rthdr_getflags(const struct cmsghdr *, int);
927
6d2010ae
A		 928extern int inet6_opt_init(void *, socklen_t);
929extern int inet6_opt_append(void *, socklen_t, int, __uint8_t,
930 socklen_t, __uint8_t, void **);
931extern int inet6_opt_finish(void *, socklen_t, int);
932extern int inet6_opt_set_val(void *, int, void *, socklen_t);
933
934extern int inet6_opt_next(void *, socklen_t, int, __uint8_t *,
935 socklen_t *, void **);
936extern int inet6_opt_find(void *, socklen_t, int, __uint8_t,
937 socklen_t *, void **);
938extern int inet6_opt_get_val(void *, int, void *, socklen_t);
939extern socklen_t inet6_rth_space(int, int);
940extern void *inet6_rth_init(void *, socklen_t, int, int);
91447636
A		 941extern int inet6_rth_add(void *, const struct in6_addr *);
942extern int inet6_rth_reverse(const void *, void *);
943extern int inet6_rth_segments(const void *);
944extern struct in6_addr *inet6_rth_getaddr(const void *, int);
6d2010ae 945extern void addrsel_policy_init(void);
1c79356b 946__END_DECLS
0c530ab8 947#endif /* !KERNEL */
2d21ac55 948#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
1c79356b 949#endif /* !_NETINET6_IN6_H_ */
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