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9bccf70c
A		 1/* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.4 2001/07/04 09:45:23 ume Exp $ */
2/* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */
1c79356b
A		 3
4/*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the project nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33/*
34 * Copyright (c) 1982, 1986, 1990, 1993
35 * The Regents of the University of California. All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * 3. All advertising materials mentioning features or use of this software
46 * must display the following acknowledgement:
47 * This product includes software developed by the University of
48 * California, Berkeley and its contributors.
49 * 4. Neither the name of the University nor the names of its contributors
50 * may be used to endorse or promote products derived from this software
51 * without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63 * SUCH DAMAGE.
64 *
65 * @(#)in.h 8.3 (Berkeley) 1/3/94
66 */
67
68#ifndef __KAME_NETINET_IN_H_INCLUDED_
9bccf70c 69#error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
1c79356b
A		 70#endif
71
72#ifndef _NETINET6_IN6_H_
73#define _NETINET6_IN6_H_
9bccf70c 74#include <sys/appleapiopts.h>
91447636
A		 75#include <sys/_types.h>
76
77
78#ifndef _SA_FAMILY_T
79#define _SA_FAMILY_T
80typedef __uint8_t sa_family_t;
81#endif
1c79356b
A		 82
83/*
84 * Identification of the network protocol stack
9bccf70c
A		 85 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
86 * has the table of implementation/integration differences.
1c79356b
A		 87 */
88#define __KAME__
9bccf70c 89#define __KAME_VERSION "20010528/apple-darwin"
1c79356b 90
91447636 91#ifndef _POSIX_C_SOURCE
1c79356b
A		 92/*
93 * Local port number conventions:
94 *
95 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
96 * unless a kernel is compiled with IPNOPRIVPORTS defined.
97 *
98 * When a user does a bind(2) or connect(2) with a port number of zero,
99 * a non-conflicting local port address is chosen.
100 *
9bccf70c 101 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
1c79356b
A		 102 * that is settable by sysctl(3); net.inet.ip.anonportmin and
103 * net.inet.ip.anonportmax respectively.
104 *
105 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
106 * default assignment range.
107 *
108 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
109 *
110 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
111 * and exists only for FreeBSD compatibility purposes.
112 *
113 * The value IP_PORTRANGE_LOW changes the range to the "low" are
114 * that is (by convention) restricted to privileged processes.
115 * This convention is based on "vouchsafe" principles only.
116 * It is only secure if you trust the remote host to restrict these ports.
117 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
118 */
119
120#define IPV6PORT_RESERVED 1024
121#define IPV6PORT_ANONMIN 49152
122#define IPV6PORT_ANONMAX 65535
123#define IPV6PORT_RESERVEDMIN 600
124#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
91447636 125#endif /* _POSIX_C_SOURCE */
1c79356b
A		 126
127/*
128 * IPv6 address
129 */
130struct in6_addr {
131 union {
91447636
A		 132 __uint8_t __u6_addr8[16];
133 __uint16_t __u6_addr16[8];
134 __uint32_t __u6_addr32[4];
1c79356b
A		 135 } __u6_addr; /* 128-bit IP6 address */
136};
137
138#define s6_addr __u6_addr.__u6_addr8
139#ifdef KERNEL /*XXX nonstandard*/
140#define s6_addr8 __u6_addr.__u6_addr8
141#define s6_addr16 __u6_addr.__u6_addr16
142#define s6_addr32 __u6_addr.__u6_addr32
143#endif
144
145#define INET6_ADDRSTRLEN 46
146
147/*
148 * Socket address for IPv6
149 */
91447636 150#ifndef _POSIX_C_SOURCE
1c79356b 151#define SIN6_LEN
91447636 152#endif /* _POSIX_C_SOURCE */
1c79356b 153struct sockaddr_in6 {
91447636
A		 154 __uint8_t sin6_len; /* length of this struct(sa_family_t)*/
155 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */
156 in_port_t sin6_port; /* Transport layer port # (in_port_t)*/
157 __uint32_t sin6_flowinfo; /* IP6 flow information */
1c79356b 158 struct in6_addr sin6_addr; /* IP6 address */
91447636 159 __uint32_t sin6_scope_id; /* scope zone index */
1c79356b
A		 160};
161
162/*
163 * Local definition for masks
164 */
165#ifdef KERNEL /*XXX nonstandard*/
166#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
167#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
168 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
169#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
170 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
171#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
172 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
173#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
174 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
175#endif
176
91447636 177#ifdef KERNEL_PRIVATE
9bccf70c
A		 178extern const struct sockaddr_in6 sa6_any;
179
1c79356b
A		 180extern const struct in6_addr in6mask0;
181extern const struct in6_addr in6mask32;
182extern const struct in6_addr in6mask64;
183extern const struct in6_addr in6mask96;
184extern const struct in6_addr in6mask128;
5d5c5d0d
A		 185#endif /* KERNEL_PRIVATE */
186
1c79356b
A		 187
188/*
189 * Macros started with IPV6_ADDR is KAME local
190 */
191#ifdef KERNEL /*XXX nonstandard*/
192#if BYTE_ORDER == BIG_ENDIAN
193#define IPV6_ADDR_INT32_ONE 1
194#define IPV6_ADDR_INT32_TWO 2
195#define IPV6_ADDR_INT32_MNL 0xff010000
196#define IPV6_ADDR_INT32_MLL 0xff020000
197#define IPV6_ADDR_INT32_SMP 0x0000ffff
198#define IPV6_ADDR_INT16_ULL 0xfe80
199#define IPV6_ADDR_INT16_USL 0xfec0
200#define IPV6_ADDR_INT16_MLL 0xff02
201#elif BYTE_ORDER == LITTLE_ENDIAN
202#define IPV6_ADDR_INT32_ONE 0x01000000
203#define IPV6_ADDR_INT32_TWO 0x02000000
204#define IPV6_ADDR_INT32_MNL 0x000001ff
205#define IPV6_ADDR_INT32_MLL 0x000002ff
206#define IPV6_ADDR_INT32_SMP 0xffff0000
207#define IPV6_ADDR_INT16_ULL 0x80fe
208#define IPV6_ADDR_INT16_USL 0xc0fe
209#define IPV6_ADDR_INT16_MLL 0x02ff
210#endif
211#endif
212
213/*
214 * Definition of some useful macros to handle IP6 addresses
215 */
216#define IN6ADDR_ANY_INIT \
217 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
218 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
219#define IN6ADDR_LOOPBACK_INIT \
220 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
221 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
91447636 222#ifndef _POSIX_C_SOURCE
1c79356b
A		 223#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
224 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
225 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
226#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
227 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
228 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
229#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
230 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
231 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
91447636 232#endif /* _POSIX_C_SOURCE */
1c79356b 233
1c79356b
A		 234extern const struct in6_addr in6addr_any;
235extern const struct in6_addr in6addr_loopback;
91447636 236#ifndef _POSIX_C_SOURCE
1c79356b
A		 237extern const struct in6_addr in6addr_nodelocal_allnodes;
238extern const struct in6_addr in6addr_linklocal_allnodes;
239extern const struct in6_addr in6addr_linklocal_allrouters;
91447636 240#endif /* _POSIX_C_SOURCE */
1c79356b
A		 241
242/*
243 * Equality
244 * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
245 * does not supply memcmp(). For userland memcmp() is preferred as it is
246 * in ANSI standard.
247 */
248#ifdef KERNEL
249#define IN6_ARE_ADDR_EQUAL(a, b) \
9bccf70c 250 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
1c79356b 251#else
91447636 252#ifndef _POSIX_C_SOURCE
1c79356b 253#define IN6_ARE_ADDR_EQUAL(a, b) \
9bccf70c 254 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
91447636 255#endif /* _POSIX_C_SOURCE */
9bccf70c
A		 256#endif
257
258#ifdef KERNEL /* non standard */
259/* see if two addresses are equal in a scope-conscious manner. */
260#define SA6_ARE_ADDR_EQUAL(a, b) \
261 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
262 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \
263 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0))
1c79356b
A		 264#endif
265
266/*
267 * Unspecified
268 */
269#define IN6_IS_ADDR_UNSPECIFIED(a) \
91447636
A		 270 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
271 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
272 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
273 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
1c79356b
A		 274
275/*
276 * Loopback
277 */
278#define IN6_IS_ADDR_LOOPBACK(a) \
91447636
A		 279 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
280 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
281 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
282 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
1c79356b
A		 283
284/*
285 * IPv4 compatible
286 */
287#define IN6_IS_ADDR_V4COMPAT(a) \
91447636
A		 288 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
289 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
290 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
291 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
292 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
1c79356b
A		 293
294/*
295 * Mapped
296 */
297#define IN6_IS_ADDR_V4MAPPED(a) \
91447636
A		 298 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
299 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
300 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
1c79356b
A		 301
302/*
303 * KAME Scope Values
304 */
305
306#ifdef KERNEL /*XXX nonstandard*/
307#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
308#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
309#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
310#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
311#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
312#else
313#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
314#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
315#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
316#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
317#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
318#endif
319
320/*
321 * Unicast Scope
322 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
323 */
324#define IN6_IS_ADDR_LINKLOCAL(a) \
325 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
326#define IN6_IS_ADDR_SITELOCAL(a) \
327 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
328
329/*
330 * Multicast
331 */
332#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
333
334#ifdef KERNEL /*XXX nonstandard*/
335#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
336#else
337#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
338#endif
339
340/*
341 * Multicast Scope
342 */
343#ifdef KERNEL /*refers nonstandard items */
344#define IN6_IS_ADDR_MC_NODELOCAL(a) \
345 (IN6_IS_ADDR_MULTICAST(a) && \
346 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
347#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
348 (IN6_IS_ADDR_MULTICAST(a) && \
349 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
350#define IN6_IS_ADDR_MC_SITELOCAL(a) \
351 (IN6_IS_ADDR_MULTICAST(a) && \
352 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
353#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
354 (IN6_IS_ADDR_MULTICAST(a) && \
355 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
356#define IN6_IS_ADDR_MC_GLOBAL(a) \
357 (IN6_IS_ADDR_MULTICAST(a) && \
358 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
359#else
360#define IN6_IS_ADDR_MC_NODELOCAL(a) \
361 (IN6_IS_ADDR_MULTICAST(a) && \
362 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
363#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
364 (IN6_IS_ADDR_MULTICAST(a) && \
365 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
366#define IN6_IS_ADDR_MC_SITELOCAL(a) \
367 (IN6_IS_ADDR_MULTICAST(a) && \
368 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
369#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
370 (IN6_IS_ADDR_MULTICAST(a) && \
371 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
372#define IN6_IS_ADDR_MC_GLOBAL(a) \
373 (IN6_IS_ADDR_MULTICAST(a) && \
374 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
375#endif
376
9bccf70c 377#ifdef KERNEL /*nonstandard*/
1c79356b
A		 378/*
379 * KAME Scope
380 */
1c79356b
A		 381#define IN6_IS_SCOPE_LINKLOCAL(a) \
382 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
383 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
9bccf70c
A		 384
385#define IFA6_IS_DEPRECATED(a) \
386 ((a)->ia6_lifetime.ia6t_preferred != 0 && \
91447636 387 (a)->ia6_lifetime.ia6t_preferred < timenow.tv_sec)
9bccf70c
A		 388#define IFA6_IS_INVALID(a) \
389 ((a)->ia6_lifetime.ia6t_expire != 0 && \
91447636
A		 390 (a)->ia6_lifetime.ia6t_expire < timenow.tv_sec)
391#endif /* KERNEL */
1c79356b
A		 392
393/*
394 * IP6 route structure
395 */
91447636
A		 396#ifndef _POSIX_C_SOURCE
397#ifdef PRIVATE
1c79356b
A		 398struct route_in6 {
399 struct rtentry *ro_rt;
400 struct sockaddr_in6 ro_dst;
401};
91447636
A		 402#endif /* PRIVATE */
403#endif /* _POSIX_C_SOURCE */
1c79356b
A		 404
405/*
406 * Options for use with [gs]etsockopt at the IPV6 level.
407 * First word of comment is data type; bool is stored in int.
408 */
409/* no hdrincl */
91447636 410#ifndef _POSIX_C_SOURCE
1c79356b
A		 411#if 0 /* the followings are relic in IPv4 and hence are disabled */
412#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
413#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
414#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
415#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
416#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
5d5c5d0d 417#endif /* 0 */
1c79356b 418#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
91447636 419#endif /* _POSIX_C_SOURCE */
1c79356b 420#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
91447636
A		 421#define IPV6_MULTICAST_IF 9 /* __uint8_t; set/get IP6 multicast i/f */
422#define IPV6_MULTICAST_HOPS 10 /* __uint8_t; set/get IP6 multicast hops */
423#define IPV6_MULTICAST_LOOP 11 /* __uint8_t; set/get IP6 mcast loopback */
1c79356b
A		 424#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
425#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
91447636
A		 426
427#ifndef _POSIX_C_SOURCE
1c79356b
A		 428#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
429#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
9bccf70c
A		 430/* RFC2292 options */
431#define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */
432#define IPV6_HOPLIMIT 20 /* bool; hop limit */
433#define IPV6_NEXTHOP 21 /* bool; next hop addr */
434#define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */
435#define IPV6_DSTOPTS 23 /* bool; destination option */
436#define IPV6_RTHDR 24 /* bool; routing header */
1c79356b 437#define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
9bccf70c 438
1c79356b 439#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
91447636 440#endif /* _POSIX_C_SOURCE */
9bccf70c 441#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
91447636 442#ifndef _POSIX_C_SOURCE
55e303ae 443#ifndef KERNEL
9bccf70c 444#define IPV6_BINDV6ONLY IPV6_V6ONLY
5d5c5d0d 445#endif /* KERNEL */
1c79356b 446
55e303ae 447
1c79356b
A		 448#if 1 /*IPSEC*/
449#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
5d5c5d0d 450#endif /* 1 */
1c79356b
A		 451#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */
452
453#if 1 /*IPV6FIREWALL*/
454#define IPV6_FW_ADD 30 /* add a firewall rule to chain */
455#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
456#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
457#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
458#define IPV6_FW_GET 34 /* get entire firewall rule chain */
5d5c5d0d 459#endif /* 1 */
1c79356b 460
9bccf70c 461/* to define items, should talk with KAME guys first, for *BSD compatibility */
1c79356b
A		 462
463#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
464#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
465#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
466
467/*
468 * Defaults and limits for options
469 */
470#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
471#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
472
473/*
474 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
475 */
476struct ipv6_mreq {
477 struct in6_addr ipv6mr_multiaddr;
9bccf70c 478 unsigned int ipv6mr_interface;
1c79356b
A		 479};
480
481/*
482 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
483 */
484struct in6_pktinfo {
9bccf70c
A		 485 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
486 unsigned int ipi6_ifindex; /* send/recv interface index */
1c79356b
A		 487};
488
489/*
490 * Argument for IPV6_PORTRANGE:
491 * - which range to search when port is unspecified at bind() or connect()
492 */
493#define IPV6_PORTRANGE_DEFAULT 0 /* default range */
494#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
495#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
496
1c79356b
A		 497/*
498 * Definitions for inet6 sysctl operations.
499 *
500 * Third level is protocol number.
501 * Fourth level is desired variable within that protocol.
502 */
503#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
504
91447636
A		 505/*
506 * Names for IP sysctl objects
507 */
508#define IPV6CTL_FORWARDING 1 /* act as router */
509#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
510#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
511#ifdef notyet
512#define IPV6CTL_DEFMTU 4 /* default MTU */
513#endif
514#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
515#define IPV6CTL_STATS 6 /* stats */
516#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
517#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
518#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
519#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
520#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
521#define IPV6CTL_ACCEPT_RTADV 12
522#define IPV6CTL_KEEPFAITH 13
523#define IPV6CTL_LOG_INTERVAL 14
524#define IPV6CTL_HDRNESTLIMIT 15
525#define IPV6CTL_DAD_COUNT 16
526#define IPV6CTL_AUTO_FLOWLABEL 17
527#define IPV6CTL_DEFMCASTHLIM 18
528#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
529#define IPV6CTL_KAME_VERSION 20
530#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
531#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
532#if 0 /*obsolete*/
533#define IPV6CTL_MAPPED_ADDR 23
534#endif
535#define IPV6CTL_V6ONLY 24
536#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
537#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
538#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
539
540#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */
541#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
542#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
543#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
544#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
545
546#define IPV6CTL_MAXFRAGS 41 /* max fragments */
547
548/* New entries should be added here from current IPV6CTL_MAXID value. */
549/* to define items, should talk with KAME guys first, for *BSD compatibility */
550#define IPV6CTL_MAXID 42
551
552#ifdef KERNEL_PRIVATE
1c79356b
A		 553#define CTL_IPV6PROTO_NAMES { \
554 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
555 { 0, 0 }, \
556 { "tcp6", CTLTYPE_NODE }, \
557 { 0, 0 }, \
558 { 0, 0 }, \
559 { 0, 0 }, \
560 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
561 { 0, 0 }, \
562 { 0, 0 }, \
563 { "udp6", CTLTYPE_NODE }, \
564 { 0, 0 }, \
565 { 0, 0 }, \
566 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
567 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
568 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
569 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
570 { 0, 0 }, \
571 { "ip6", CTLTYPE_NODE }, \
572 { 0, 0 }, \
573 { 0, 0 }, \
574 { 0, 0 }, \
575 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
576 { 0, 0 }, \
577 { "ipsec6", CTLTYPE_NODE }, \
578 { 0, 0 }, \
579 { 0, 0 }, \
580 { 0, 0 }, \
581 { 0, 0 }, \
582 { 0, 0 }, \
583 { 0, 0 }, \
584 { "icmp6", CTLTYPE_NODE }, \
585 { 0, 0 }, \
586 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
587 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
588 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
589 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
590 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
591 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
592 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
593 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
594 { 0, 0 }, \
595 { 0, 0 }, \
596 { 0, 0 }, \
597 { "pim6", CTLTYPE_NODE }, \
598}
9bccf70c
A		 599/*
600 * Redefinition of mbuf flags
601 */
602#define M_AUTHIPHDR M_PROTO2
603#define M_DECRYPTED M_PROTO3
604#define M_LOOP M_PROTO4
605#define M_AUTHIPDGM M_PROTO5
606
1c79356b 607struct cmsghdr;
9bccf70c
A		 608struct mbuf;
609struct ifnet;
55e303ae 610struct in6_aliasreq;
1c79356b 611
91447636
A		 612int in6_cksum(struct mbuf *, __uint8_t, __uint32_t, __uint32_t);
613int in6_localaddr(struct in6_addr *);
614int in6_addrscope(struct in6_addr *);
615struct in6_ifaddr *in6_ifawithscope(struct ifnet *, struct in6_addr *);
616struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);
617extern void in6_if_up(struct ifnet *, struct in6_aliasreq *);
1c79356b
A		 618struct sockaddr;
619
91447636
A		 620void in6_sin6_2_sin(struct sockaddr_in *sin,
621 struct sockaddr_in6 *sin6);
622void in6_sin_2_v4mapsin6(struct sockaddr_in *sin,
623 struct sockaddr_in6 *sin6);
624void in6_sin6_2_sin_in_sock(struct sockaddr *nam);
625void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam);
1c79356b
A		 626
627#define satosin6(sa) ((struct sockaddr_in6 *)(sa))
628#define sin6tosa(sin6) ((struct sockaddr *)(sin6))
629#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
5d5c5d0d 630#endif /* KERNEL_PRIVATE */
1c79356b 631
91447636 632#ifndef KERNEL
1c79356b
A		 633__BEGIN_DECLS
634struct cmsghdr;
635
91447636
A		 636extern int inet6_option_space(int);
637extern int inet6_option_init(void *, struct cmsghdr **, int);
638extern int inet6_option_append(struct cmsghdr *, const __uint8_t *,
639 int, int);
640extern __uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
641extern int inet6_option_next(const struct cmsghdr *, __uint8_t **);
642extern int inet6_option_find(const struct cmsghdr *, __uint8_t **, int);
643
644extern size_t inet6_rthdr_space(int, int);
645extern struct cmsghdr *inet6_rthdr_init(void *, int);
646extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *,
647 unsigned int);
648extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);
1c79356b 649#if 0 /* not implemented yet */
91447636 650extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *);
1c79356b 651#endif
91447636
A		 652extern int inet6_rthdr_segments(const struct cmsghdr *);
653extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);
654extern int inet6_rthdr_getflags(const struct cmsghdr *, int);
655
656extern int inet6_opt_init(void *, size_t);
657extern int inet6_opt_append(void *, size_t, int, __uint8_t,
658 size_t, __uint8_t, void **);
659extern int inet6_opt_finish(void *, size_t, int);
660extern int inet6_opt_set_val(void *, size_t, void *, int);
661
662extern int inet6_opt_next(void *, size_t, int, __uint8_t *,
663 size_t *, void **);
664extern int inet6_opt_find(void *, size_t, int, __uint8_t,
665 size_t *, void **);
666extern int inet6_opt_get_val(void *, size_t, void *, int);
667extern size_t inet6_rth_space(int, int);
668extern void *inet6_rth_init(void *, int, int, int);
669extern int inet6_rth_add(void *, const struct in6_addr *);
670extern int inet6_rth_reverse(const void *, void *);
671extern int inet6_rth_segments(const void *);
672extern struct in6_addr *inet6_rth_getaddr(const void *, int);
1c79356b 673__END_DECLS
5d5c5d0d 674#endif /* !KERNEL */
91447636 675#endif /* _POSIX_C_SOURCE */
1c79356b 676#endif /* !_NETINET6_IN6_H_ */
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