Split extern in6* declarations for libc vs the kernel.
[dragonfly.git] / sys / netinet6 / in6.h
CommitLineData
984263bc 1/* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.7 2002/08/01 19:38:50 ume Exp $ */
15cc6e06 2/* $DragonFly: src/sys/netinet6/in6.h,v 1.6 2006/09/04 18:53:36 dillon Exp $ */
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3/* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */
4
5/*
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34/*
35 * Copyright (c) 1982, 1986, 1990, 1993
36 * The Regents of the University of California. All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 * SUCH DAMAGE.
65 *
66 * @(#)in.h 8.3 (Berkeley) 1/3/94
67 */
68
69#ifndef __KAME_NETINET_IN_H_INCLUDED_
70#error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
71#endif
72
73#ifndef _NETINET6_IN6_H_
74#define _NETINET6_IN6_H_
75
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76#ifndef _SYS_TYPES_H_
77#include <sys/types.h>
78#endif
79
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80/*
81 * Identification of the network protocol stack
82 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
83 * has the table of implementation/integration differences.
84 */
85#define __KAME__
86#define __KAME_VERSION "20010528/FreeBSD"
87
88/*
89 * Local port number conventions:
90 *
91 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
92 * unless a kernel is compiled with IPNOPRIVPORTS defined.
93 *
94 * When a user does a bind(2) or connect(2) with a port number of zero,
95 * a non-conflicting local port address is chosen.
96 *
97 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
98 * that is settable by sysctl(3); net.inet.ip.anonportmin and
99 * net.inet.ip.anonportmax respectively.
100 *
101 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
102 * default assignment range.
103 *
104 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
105 *
106 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
107 * and exists only for FreeBSD compatibility purposes.
108 *
109 * The value IP_PORTRANGE_LOW changes the range to the "low" are
110 * that is (by convention) restricted to privileged processes.
111 * This convention is based on "vouchsafe" principles only.
112 * It is only secure if you trust the remote host to restrict these ports.
113 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
114 */
115
116#define IPV6PORT_RESERVED 1024
117#define IPV6PORT_ANONMIN 49152
118#define IPV6PORT_ANONMAX 65535
119#define IPV6PORT_RESERVEDMIN 600
120#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
121
122/*
123 * IPv6 address
124 */
125struct in6_addr {
126 union {
127 u_int8_t __u6_addr8[16];
128 u_int16_t __u6_addr16[8];
129 u_int32_t __u6_addr32[4];
130 } __u6_addr; /* 128-bit IP6 address */
131};
132
133#define s6_addr __u6_addr.__u6_addr8
134#ifdef _KERNEL /* XXX nonstandard */
135#define s6_addr8 __u6_addr.__u6_addr8
136#define s6_addr16 __u6_addr.__u6_addr16
137#define s6_addr32 __u6_addr.__u6_addr32
138#endif
139
140#define INET6_ADDRSTRLEN 46
141
142/*
143 * Socket address for IPv6
144 */
145#ifndef _XOPEN_SOURCE
146#define SIN6_LEN
147#endif
148struct sockaddr_in6 {
149 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/
150 u_int8_t sin6_family; /* AF_INET6 (sa_family_t) */
151 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/
152 u_int32_t sin6_flowinfo; /* IP6 flow information */
153 struct in6_addr sin6_addr; /* IP6 address */
154 u_int32_t sin6_scope_id; /* scope zone index */
155};
156
157/*
158 * Local definition for masks
159 */
160#ifdef _KERNEL /* XXX nonstandard */
161#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
162#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
163 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
164#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
165 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
166#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
167 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
168#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
169 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
170#endif
171
172#ifdef _KERNEL
173extern const struct sockaddr_in6 sa6_any;
174
175extern const struct in6_addr in6mask0;
176extern const struct in6_addr in6mask32;
177extern const struct in6_addr in6mask64;
178extern const struct in6_addr in6mask96;
179extern const struct in6_addr in6mask128;
180#endif /* _KERNEL */
181
182/*
183 * Macros started with IPV6_ADDR is KAME local
184 */
185#ifdef _KERNEL /* XXX nonstandard */
186#if BYTE_ORDER == BIG_ENDIAN
187#define IPV6_ADDR_INT32_ONE 1
188#define IPV6_ADDR_INT32_TWO 2
189#define IPV6_ADDR_INT32_MNL 0xff010000
190#define IPV6_ADDR_INT32_MLL 0xff020000
191#define IPV6_ADDR_INT32_SMP 0x0000ffff
192#define IPV6_ADDR_INT16_ULL 0xfe80
193#define IPV6_ADDR_INT16_USL 0xfec0
194#define IPV6_ADDR_INT16_MLL 0xff02
195#elif BYTE_ORDER == LITTLE_ENDIAN
196#define IPV6_ADDR_INT32_ONE 0x01000000
197#define IPV6_ADDR_INT32_TWO 0x02000000
198#define IPV6_ADDR_INT32_MNL 0x000001ff
199#define IPV6_ADDR_INT32_MLL 0x000002ff
200#define IPV6_ADDR_INT32_SMP 0xffff0000
201#define IPV6_ADDR_INT16_ULL 0x80fe
202#define IPV6_ADDR_INT16_USL 0xc0fe
203#define IPV6_ADDR_INT16_MLL 0x02ff
204#endif
205#endif
206
207/*
208 * Definition of some useful macros to handle IP6 addresses
209 */
210#define IN6ADDR_ANY_INIT \
211 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
212 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
213#define IN6ADDR_LOOPBACK_INIT \
214 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
215 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
216#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
217 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
218 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
219#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
220 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
221 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
222#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
223 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
224 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
225
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226#ifdef _KERNEL
227
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228extern const struct in6_addr kin6addr_any;
229extern const struct in6_addr kin6addr_loopback;
230extern const struct in6_addr kin6addr_nodelocal_allnodes;
231extern const struct in6_addr kin6addr_linklocal_allnodes;
232extern const struct in6_addr kin6addr_linklocal_allrouters;
984263bc 233
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234#else
235
236extern const struct in6_addr in6addr_any;
237extern const struct in6_addr in6addr_loopback;
238extern const struct in6_addr in6addr_nodelocal_allnodes;
239extern const struct in6_addr in6addr_linklocal_allnodes;
240
241#endif
242
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243/*
244 * Equality
245 * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
246 * does not supply memcmp(). For userland memcmp() is preferred as it is
247 * in ANSI standard.
248 */
249#ifdef _KERNEL
250#define IN6_ARE_ADDR_EQUAL(a, b) \
251 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
252#else
253#define IN6_ARE_ADDR_EQUAL(a, b) \
254 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
255#endif
256
257#ifdef _KERNEL /* non standard */
258/* see if two addresses are equal in a scope-conscious manner. */
259#define SA6_ARE_ADDR_EQUAL(a, b) \
260 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
261 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \
262 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0))
263#endif
264
265/*
266 * Unspecified
267 */
268#define IN6_IS_ADDR_UNSPECIFIED(a) \
269 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
270 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
271 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
272 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
273
274/*
275 * Loopback
276 */
277#define IN6_IS_ADDR_LOOPBACK(a) \
278 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
279 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
280 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
281 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
282
283/*
284 * IPv4 compatible
285 */
286#define IN6_IS_ADDR_V4COMPAT(a) \
287 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
288 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
289 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
290 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
291 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
292
293/*
294 * Mapped
295 */
296#define IN6_IS_ADDR_V4MAPPED(a) \
297 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
298 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
299 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
300
301/*
302 * KAME Scope Values
303 */
304
305#ifdef _KERNEL /* XXX nonstandard */
306#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
307#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
308#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
309#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
310#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
311#else
312#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
313#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
314#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
315#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
316#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
317#endif
318
319/*
320 * Unicast Scope
321 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
322 */
323#define IN6_IS_ADDR_LINKLOCAL(a) \
324 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
325#define IN6_IS_ADDR_SITELOCAL(a) \
326 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
327
328/*
329 * Multicast
330 */
331#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
332
333#ifdef _KERNEL /* XXX nonstandard */
334#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
335#else
336#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
337#endif
338
339/*
340 * Multicast Scope
341 */
342#ifdef _KERNEL /* refers nonstandard items */
343#define IN6_IS_ADDR_MC_NODELOCAL(a) \
344 (IN6_IS_ADDR_MULTICAST(a) && \
345 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
346#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
347 (IN6_IS_ADDR_MULTICAST(a) && \
348 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
349#define IN6_IS_ADDR_MC_SITELOCAL(a) \
350 (IN6_IS_ADDR_MULTICAST(a) && \
351 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
352#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
353 (IN6_IS_ADDR_MULTICAST(a) && \
354 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
355#define IN6_IS_ADDR_MC_GLOBAL(a) \
356 (IN6_IS_ADDR_MULTICAST(a) && \
357 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
358#else
359#define IN6_IS_ADDR_MC_NODELOCAL(a) \
360 (IN6_IS_ADDR_MULTICAST(a) && \
361 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
362#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
363 (IN6_IS_ADDR_MULTICAST(a) && \
364 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
365#define IN6_IS_ADDR_MC_SITELOCAL(a) \
366 (IN6_IS_ADDR_MULTICAST(a) && \
367 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
368#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
369 (IN6_IS_ADDR_MULTICAST(a) && \
370 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
371#define IN6_IS_ADDR_MC_GLOBAL(a) \
372 (IN6_IS_ADDR_MULTICAST(a) && \
373 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
374#endif
375
376#ifdef _KERNEL /* nonstandard */
377/*
378 * KAME Scope
379 */
380#define IN6_IS_SCOPE_LINKLOCAL(a) \
381 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
382 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
383
384#define IFA6_IS_DEPRECATED(a) \
385 ((a)->ia6_lifetime.ia6t_preferred != 0 && \
386 (a)->ia6_lifetime.ia6t_preferred < time_second)
387#define IFA6_IS_INVALID(a) \
388 ((a)->ia6_lifetime.ia6t_expire != 0 && \
389 (a)->ia6_lifetime.ia6t_expire < time_second)
390#endif /* _KERNEL */
391
392/*
393 * IP6 route structure
394 */
395#ifndef _XOPEN_SOURCE
396struct route_in6 {
397 struct rtentry *ro_rt;
398 struct sockaddr_in6 ro_dst;
399};
400#endif
401
402/*
403 * Options for use with [gs]etsockopt at the IPV6 level.
404 * First word of comment is data type; bool is stored in int.
405 */
406/* no hdrincl */
407#if 0 /* the followings are relic in IPv4 and hence are disabled */
408#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
409#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
410#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
411#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
412#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
413#endif
414#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
415#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
416#define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */
417#define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */
418#define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */
419#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
420#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
421#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
422#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
423/* RFC2292 options */
424#define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */
425#define IPV6_HOPLIMIT 20 /* bool; hop limit */
426#define IPV6_NEXTHOP 21 /* bool; next hop addr */
427#define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */
428#define IPV6_DSTOPTS 23 /* bool; destination option */
429#define IPV6_RTHDR 24 /* bool; routing header */
430#define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
431
432#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
433#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
434#ifndef _KERNEL
435#define IPV6_BINDV6ONLY IPV6_V6ONLY
436#endif
437
438#if 1 /* IPSEC */
439#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
440#endif
441#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */
442
443#if 1 /* IPV6FIREWALL */
444#define IPV6_FW_ADD 30 /* add a firewall rule to chain */
445#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
446#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
447#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
448#define IPV6_FW_GET 34 /* get entire firewall rule chain */
449#endif
450
451/* to define items, should talk with KAME guys first, for *BSD compatibility */
452
453#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
454#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
455#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
456
457/*
458 * Defaults and limits for options
459 */
460#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
461#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
462
463/*
464 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
465 */
466struct ipv6_mreq {
467 struct in6_addr ipv6mr_multiaddr;
468 unsigned int ipv6mr_interface;
469};
470
471/*
472 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
473 */
474struct in6_pktinfo {
475 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
476 unsigned int ipi6_ifindex; /* send/recv interface index */
477};
478
479/*
480 * Argument for IPV6_PORTRANGE:
481 * - which range to search when port is unspecified at bind() or connect()
482 */
483#define IPV6_PORTRANGE_DEFAULT 0 /* default range */
484#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
485#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
486
487#ifndef _XOPEN_SOURCE
488/*
489 * Definitions for inet6 sysctl operations.
490 *
491 * Third level is protocol number.
492 * Fourth level is desired variable within that protocol.
493 */
494#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
495
496#define CTL_IPV6PROTO_NAMES { \
497 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
498 { 0, 0 }, \
499 { "tcp6", CTLTYPE_NODE }, \
500 { 0, 0 }, \
501 { 0, 0 }, \
502 { 0, 0 }, \
503 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
504 { 0, 0 }, \
505 { 0, 0 }, \
506 { "udp6", CTLTYPE_NODE }, \
507 { 0, 0 }, \
508 { 0, 0 }, \
509 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
510 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
511 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
512 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
513 { 0, 0 }, \
514 { "ip6", CTLTYPE_NODE }, \
515 { 0, 0 }, \
516 { 0, 0 }, \
517 { 0, 0 }, \
518 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
519 { 0, 0 }, \
520 { "ipsec6", CTLTYPE_NODE }, \
521 { 0, 0 }, \
522 { 0, 0 }, \
523 { 0, 0 }, \
524 { 0, 0 }, \
525 { 0, 0 }, \
526 { 0, 0 }, \
527 { "icmp6", CTLTYPE_NODE }, \
528 { 0, 0 }, \
529 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
530 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
531 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
532 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
533 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
534 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
535 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
536 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
537 { 0, 0 }, \
538 { 0, 0 }, \
539 { 0, 0 }, \
540 { "pim6", CTLTYPE_NODE }, \
541}
542
543/*
544 * Names for IP sysctl objects
545 */
546#define IPV6CTL_FORWARDING 1 /* act as router */
547#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
548#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
549#ifdef notyet
550#define IPV6CTL_DEFMTU 4 /* default MTU */
551#endif
552#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
553#define IPV6CTL_STATS 6 /* stats */
554#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
555#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
556#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
557#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
558#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
559#define IPV6CTL_ACCEPT_RTADV 12
560#define IPV6CTL_KEEPFAITH 13
561#define IPV6CTL_LOG_INTERVAL 14
562#define IPV6CTL_HDRNESTLIMIT 15
563#define IPV6CTL_DAD_COUNT 16
564#define IPV6CTL_AUTO_FLOWLABEL 17
565#define IPV6CTL_DEFMCASTHLIM 18
566#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
567#define IPV6CTL_KAME_VERSION 20
568#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
569#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
570#if 0 /* obsolete */
571#define IPV6CTL_MAPPED_ADDR 23
572#endif
573#define IPV6CTL_V6ONLY 24
574#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
575#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
576#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
577
578#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */
579#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
580#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
581#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
582#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
583
584/* New entries should be added here from current IPV6CTL_MAXID value. */
585/* to define items, should talk with KAME guys first, for *BSD compatibility */
586#define IPV6CTL_MAXID 37
587
588#endif /* !_XOPEN_SOURCE */
589
590/*
591 * Redefinition of mbuf flags
592 */
593#define M_AUTHIPHDR M_PROTO2
594#define M_DECRYPTED M_PROTO3
595#define M_LOOP M_PROTO4
596#define M_AUTHIPDGM M_PROTO5
597
598#ifdef _KERNEL
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599
600struct mbuf;
601struct ifnet;
984263bc 602struct cmsghdr;
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603struct sockaddr;
604struct sockaddr_in;
605struct sockaddr_in6;
984263bc 606
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607int in6_cksum (struct mbuf *, u_int8_t, u_int32_t, u_int32_t);
608int in6_localaddr (struct in6_addr *);
609int in6_addrscope (struct in6_addr *);
610struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *);
611struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *);
612extern void in6_if_up (struct ifnet *);
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613struct sockaddr;
614
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615void in6_sin6_2_sin (struct sockaddr_in *sin,
616 struct sockaddr_in6 *sin6);
617void in6_sin_2_v4mapsin6 (struct sockaddr_in *sin,
618 struct sockaddr_in6 *sin6);
619void in6_sin6_2_sin_in_sock (struct sockaddr *nam);
620void in6_sin_2_v4mapsin6_in_sock (struct sockaddr **nam);
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621
622#define satosin6(sa) ((struct sockaddr_in6 *)(sa))
623#define sin6tosa(sin6) ((struct sockaddr *)(sin6))
624#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
625
626extern int (*faithprefix_p)(struct in6_addr *);
627#endif /* _KERNEL */
628
629__BEGIN_DECLS
630struct cmsghdr;
631
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632extern int inet6_option_space (int);
633extern int inet6_option_init (void *, struct cmsghdr **, int);
634extern int inet6_option_append (struct cmsghdr *, const u_int8_t *,
635 int, int);
636extern u_int8_t *inet6_option_alloc (struct cmsghdr *, int, int, int);
637extern int inet6_option_next (const struct cmsghdr *, u_int8_t **);
638extern int inet6_option_find (const struct cmsghdr *, u_int8_t **, int);
639
640extern size_t inet6_rthdr_space (int, int);
641extern struct cmsghdr *inet6_rthdr_init (void *, int);
642extern int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *,
643 unsigned int);
644extern int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int);
984263bc 645#if 0 /* not implemented yet */
56d702cc 646extern int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *);
984263bc 647#endif
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648extern int inet6_rthdr_segments (const struct cmsghdr *);
649extern struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int);
650extern int inet6_rthdr_getflags (const struct cmsghdr *, int);
651
652extern int inet6_opt_init (void *, size_t);
653extern int inet6_opt_append (void *, size_t, int, u_int8_t,
654 size_t, u_int8_t, void **);
655extern int inet6_opt_finish (void *, size_t, int);
656extern int inet6_opt_set_val (void *, size_t, void *, int);
657
658extern int inet6_opt_next (void *, size_t, int, u_int8_t *,
659 size_t *, void **);
660extern int inet6_opt_find (void *, size_t, int, u_int8_t,
661 size_t *, void **);
662extern int inet6_opt_get_val (void *, size_t, void *, int);
663extern size_t inet6_rth_space (int, int);
664extern void *inet6_rth_init (void *, int, int, int);
665extern int inet6_rth_add (void *, const struct in6_addr *);
666extern int inet6_rth_reverse (const void *, void *);
667extern int inet6_rth_segments (const void *);
668extern struct in6_addr *inet6_rth_getaddr (const void *, int);
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669__END_DECLS
670
671#endif /* !_NETINET6_IN6_H_ */