sys/net: Call in6_if_up from the domain rather than directly
[dragonfly.git] / sys / netinet6 / in6.h
CommitLineData
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1/* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.7 2002/08/01 19:38:50 ume Exp $ */
2/* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */
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.
2c64e990 45 * 3. Neither the name of the University nor the names of its contributors
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46 * may be used to endorse or promote products derived from this software
47 * without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 *
61 * @(#)in.h 8.3 (Berkeley) 1/3/94
62 */
63
64#ifndef __KAME_NETINET_IN_H_INCLUDED_
65#error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
66#endif
67
68#ifndef _NETINET6_IN6_H_
69#define _NETINET6_IN6_H_
70
71/*
72 * Identification of the network protocol stack
73 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
74 * has the table of implementation/integration differences.
75 */
76#define __KAME__
77#define __KAME_VERSION "20010528/FreeBSD"
78
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79#ifndef _SOCKLEN_T_DECLARED
80#define _SOCKLEN_T_DECLARED
81typedef __socklen_t socklen_t;
82#endif
83
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84/*
85 * Local port number conventions:
86 *
87 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
88 * unless a kernel is compiled with IPNOPRIVPORTS defined.
89 *
90 * When a user does a bind(2) or connect(2) with a port number of zero,
91 * a non-conflicting local port address is chosen.
92 *
93 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
94 * that is settable by sysctl(3); net.inet.ip.anonportmin and
95 * net.inet.ip.anonportmax respectively.
96 *
97 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
98 * default assignment range.
99 *
100 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
101 *
102 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
103 * and exists only for FreeBSD compatibility purposes.
104 *
105 * The value IP_PORTRANGE_LOW changes the range to the "low" are
106 * that is (by convention) restricted to privileged processes.
107 * This convention is based on "vouchsafe" principles only.
108 * It is only secure if you trust the remote host to restrict these ports.
109 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
110 */
111
112#define IPV6PORT_RESERVED 1024
113#define IPV6PORT_ANONMIN 49152
114#define IPV6PORT_ANONMAX 65535
115#define IPV6PORT_RESERVEDMIN 600
116#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
117
118/*
119 * IPv6 address
120 */
cca780f8 121#ifndef _STRUCT_IN6_ADDR_DECLARED
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122struct in6_addr {
123 union {
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124 uint8_t __u6_addr8[16];
125 uint16_t __u6_addr16[8];
126 uint32_t __u6_addr32[4];
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127 } __u6_addr; /* 128-bit IP6 address */
128};
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129#define _STRUCT_IN6_ADDR_DECLARED
130#endif
984263bc 131
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132#define s6_addr __u6_addr.__u6_addr8
133#define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */
134#define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */
8514520e 135#if __BSD_VISIBLE /* XXX nonstandard */
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136#define s6_addr8 __u6_addr.__u6_addr8
137#define s6_addr16 __u6_addr.__u6_addr16
138#define s6_addr32 __u6_addr.__u6_addr32
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139#endif
140
141#define INET6_ADDRSTRLEN 46
142
143/*
144 * Socket address for IPv6
145 */
146#ifndef _XOPEN_SOURCE
147#define SIN6_LEN
148#endif
149struct sockaddr_in6 {
77db7802 150 uint8_t sin6_len; /* length of this struct(sa_family_t)*/
1fb34cd6 151 sa_family_t sin6_family; /* AF_INET6 */
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152 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/
153 uint32_t sin6_flowinfo; /* IP6 flow information */
984263bc 154 struct in6_addr sin6_addr; /* IP6 address */
77db7802 155 uint32_t sin6_scope_id; /* scope zone index */
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156};
157
158/*
159 * Local definition for masks
160 */
161#ifdef _KERNEL /* XXX nonstandard */
162#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
163#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
164 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
165#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
166 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
167#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
168 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
169#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
170 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
171#endif
172
173#ifdef _KERNEL
174extern const struct sockaddr_in6 sa6_any;
175
176extern const struct in6_addr in6mask0;
177extern const struct in6_addr in6mask32;
178extern const struct in6_addr in6mask64;
179extern const struct in6_addr in6mask96;
180extern const struct in6_addr in6mask128;
181#endif /* _KERNEL */
182
183/*
184 * Macros started with IPV6_ADDR is KAME local
185 */
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186#if BYTE_ORDER == BIG_ENDIAN
187#define _IPV6_ADDR_INT16_UL_MASK 0xffc0
188#define _IPV6_ADDR_INT16_ULL 0xfe80
189#define _IPV6_ADDR_INT16_USL 0xfec0
190#else
191#define _IPV6_ADDR_INT16_UL_MASK 0xc0ff
192#define _IPV6_ADDR_INT16_ULL 0x80fe
193#define _IPV6_ADDR_INT16_USL 0xc0fe
194#endif
195
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196#ifdef _KERNEL /* XXX nonstandard */
197#if BYTE_ORDER == BIG_ENDIAN
198#define IPV6_ADDR_INT32_ONE 1
199#define IPV6_ADDR_INT32_TWO 2
200#define IPV6_ADDR_INT32_MNL 0xff010000
201#define IPV6_ADDR_INT32_MLL 0xff020000
202#define IPV6_ADDR_INT32_SMP 0x0000ffff
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203#define IPV6_ADDR_INT16_MLL 0xff02
204#elif BYTE_ORDER == LITTLE_ENDIAN
205#define IPV6_ADDR_INT32_ONE 0x01000000
206#define IPV6_ADDR_INT32_TWO 0x02000000
207#define IPV6_ADDR_INT32_MNL 0x000001ff
208#define IPV6_ADDR_INT32_MLL 0x000002ff
209#define IPV6_ADDR_INT32_SMP 0xffff0000
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210#define IPV6_ADDR_INT16_MLL 0x02ff
211#endif
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212#define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL
213#define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL
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214#endif
215
216/*
217 * Definition of some useful macros to handle IP6 addresses
218 */
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219#define IN6ADDR_ANY_INIT \
220 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
984263bc 221 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
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222#define IN6ADDR_LOOPBACK_INIT \
223 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
984263bc 224 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
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225#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
226 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
984263bc 227 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
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228#define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \
229 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
230 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
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231#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
232 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
984263bc 233 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
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234#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
235 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
984263bc 236 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
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237#define IN6ADDR_LINKLOCAL_ALLMDNS_INIT \
238 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
239 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb }}}
984263bc 240
15cc6e06 241#ifdef _KERNEL
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242extern const struct in6_addr kin6addr_any;
243extern const struct in6_addr kin6addr_loopback;
244extern const struct in6_addr kin6addr_nodelocal_allnodes;
245extern const struct in6_addr kin6addr_linklocal_allnodes;
246extern const struct in6_addr kin6addr_linklocal_allrouters;
15cc6e06 247#else
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248extern const struct in6_addr in6addr_any;
249extern const struct in6_addr in6addr_loopback;
250extern const struct in6_addr in6addr_nodelocal_allnodes;
251extern const struct in6_addr in6addr_linklocal_allnodes;
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252#endif
253
77db7802 254#define IN6_ARE_ADDR_EQUAL(a, b) \
984263bc 255 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
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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) \
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260 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
261 (a)->sin6_scope_id == (b)->sin6_scope_id) && \
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262 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0))
263#endif
264
265/*
266 * Unspecified
267 */
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268#define IN6_IS_ADDR_UNSPECIFIED(a) \
269 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \
270 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0)
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271
272/*
273 * Loopback
274 */
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275#define IN6_IS_ADDR_LOOPBACK(a) \
276 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \
277 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1))
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278
279/*
77db7802 280 * Mapped
984263bc 281 */
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282#define IN6_IS_ADDR_V4MAPPED(a) \
283 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \
284 (a)->_s6_addr32[2] == ntohl(0x0000ffff))
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285
286/*
77db7802 287 * IPv4 compatible. Deprecated by RFC4291.
984263bc 288 */
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289#define IN6_IS_ADDR_V4COMPAT(a) \
290 ((a)->_s6_addr32[0] == 0 && \
291 (a)->_s6_addr32[1] == 0 && \
292 (a)->_s6_addr32[2] == 0 && \
293 (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1))
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294
295/*
296 * KAME Scope Values
297 */
298
984263bc 299#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
cb3deea5 300#define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
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301#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
302#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
303#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
304#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
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305
306#ifdef _KERNEL /* XXX nonstandard */
307#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
70224baa 308#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
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309#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
310#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
311#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
312#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
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313#endif
314
315/*
316 * Unicast Scope
317 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
318 */
77db7802 319#define IN6_IS_ADDR_LINKLOCAL(a) \
ea60b7ba 320 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL)
77db7802 321#define IN6_IS_ADDR_SITELOCAL(a) \
ea60b7ba 322 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL)
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323
324/*
325 * Multicast
326 */
327#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
984263bc 328#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
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329#ifdef _KERNEL /* XXX nonstandard */
330#define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a)
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331#endif
332
333/*
334 * Multicast Scope
335 */
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336#define IN6_IS_ADDR_MC_NODELOCAL(a) \
337 (IN6_IS_ADDR_MULTICAST(a) && \
984263bc 338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
77db7802 339
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340#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
341 (IN6_IS_ADDR_MULTICAST(a) && \
342 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
343
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344#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
345 (IN6_IS_ADDR_MULTICAST(a) && \
984263bc 346 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
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347
348#define IN6_IS_ADDR_MC_SITELOCAL(a) \
349 (IN6_IS_ADDR_MULTICAST(a) && \
984263bc 350 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
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351
352#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
353 (IN6_IS_ADDR_MULTICAST(a) && \
984263bc 354 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
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355
356#define IN6_IS_ADDR_MC_GLOBAL(a) \
357 (IN6_IS_ADDR_MULTICAST(a) && \
984263bc 358 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
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359
360#ifdef _KERNEL /* nonstandard */
361/*
362 * KAME Scope
363 */
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364#define IN6_IS_SCOPE_LINKLOCAL(a) \
365 (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a))
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366#define IN6_IS_SCOPE_EMBED(a) \
367 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
368 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
369 (IN6_IS_ADDR_MC_INTFACELOCAL(a)))
370
984263bc 371
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372#define IFA6_IS_DEPRECATED(a) \
373 ((a)->ia6_lifetime.ia6t_preferred != 0 && \
cec73927 374 (a)->ia6_lifetime.ia6t_preferred < time_uptime)
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375
376#define IFA6_IS_INVALID(a) \
377 ((a)->ia6_lifetime.ia6t_expire != 0 && \
cec73927 378 (a)->ia6_lifetime.ia6t_expire < time_uptime)
77db7802 379#endif
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380
381/*
382 * IP6 route structure
383 */
384#ifndef _XOPEN_SOURCE
385struct route_in6 {
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386 struct rtentry *ro_rt;
387 struct sockaddr_in6 ro_dst;
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388};
389#endif
390
391/*
392 * Options for use with [gs]etsockopt at the IPV6 level.
393 * First word of comment is data type; bool is stored in int.
394 */
395/* no hdrincl */
396#if 0 /* the followings are relic in IPv4 and hence are disabled */
397#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
398#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
399#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
400#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
401#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
402#endif
403#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
404#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
405#define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */
406#define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */
407#define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */
408#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
409#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
410#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
411#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
412/* RFC2292 options */
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413#ifdef _KERNEL
414#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */
415#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
416#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
417#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
418#define IPV6_2292DSTOPTS 23 /* bool; destinaion option */
419#define IPV6_2292RTHDR 24 /* bool; routing header */
420#define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
421#endif
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422
423#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
424#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
425#ifndef _KERNEL
426#define IPV6_BINDV6ONLY IPV6_V6ONLY
427#endif
428
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429#if 1 /* IPV6FIREWALL */
430#define IPV6_FW_ADD 30 /* add a firewall rule to chain */
431#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
432#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
433#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
434#define IPV6_FW_GET 34 /* get entire firewall rule chain */
435#endif
436
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437/*
438 * new socket options introduced in RFC3542
439 */
440#define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */
441#define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */
442#define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */
443#define IPV6_RECVRTHDR 38 /* bool; recv routing header */
444#define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */
445#define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */
446#ifdef _KERNEL
447#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
448#endif
449#define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */
450#define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */
451
452/* mtuinfo; get the current path MTU (sopt),
453 * 4 bytes int; MTU notification (cmsg)
454 */
455#define IPV6_PATHMTU 44
456#if 0 /*obsoleted during 2292bis -> 3542*/
457#define IPV6_REACHCONF 45 /* no data; ND reachability confirm
458 (cmsg only/not in of RFC3542) */
459#endif
460#define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */
461#define IPV6_HOPLIMIT 47 /* int; send hop limit */
462#define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */
463#define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
464#define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
465#define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */
466#define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options, this is obsoleted by RFC3542 */
467
468#define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */
469
470#define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */
471
472#define IPV6_TCLASS 61 /* int; send traffic class value */
473#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
474
475#define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as
476 * the source address.
477 */
478/*
479 * The following option is private; do not use it from user applications.
480 * It is deliberately defined to the same value as IP_MSFILTER.
481 */
482#define IPV6_MSFILTER 74 /* struct __msfilterreq;
483 * set/get multicast source filter list.
484 */
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485/* to define items, should talk with KAME guys first, for *BSD compatibility */
486
487#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
488#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
fa690d60 489#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
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490
491/*
492 * Defaults and limits for options
493 */
494#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
495#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
496
497/*
498 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
499 */
500struct ipv6_mreq {
501 struct in6_addr ipv6mr_multiaddr;
502 unsigned int ipv6mr_interface;
503};
504
505/*
506 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
507 */
508struct in6_pktinfo {
509 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
510 unsigned int ipi6_ifindex; /* send/recv interface index */
511};
512
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513/*
514 * New Control structure for IPV6_RECVPATHMTU socket option introduced in RFC3542.
515 */
516struct ip6_mtuinfo {
517 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */
518 uint32_t ip6m_mtu;
519};
520
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521/*
522 * Argument for IPV6_PORTRANGE:
523 * - which range to search when port is unspecified at bind() or connect()
524 */
525#define IPV6_PORTRANGE_DEFAULT 0 /* default range */
526#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
527#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
528
529#ifndef _XOPEN_SOURCE
530/*
531 * Definitions for inet6 sysctl operations.
532 *
533 * Third level is protocol number.
534 * Fourth level is desired variable within that protocol.
535 */
536#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
537
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538/*
539 * Names for IP sysctl objects
540 */
541#define IPV6CTL_FORWARDING 1 /* act as router */
542#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
543#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
544#ifdef notyet
545#define IPV6CTL_DEFMTU 4 /* default MTU */
546#endif
547#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
548#define IPV6CTL_STATS 6 /* stats */
549#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
550#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
551#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
552#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
553#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
554#define IPV6CTL_ACCEPT_RTADV 12
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555#define IPV6CTL_LOG_INTERVAL 14
556#define IPV6CTL_HDRNESTLIMIT 15
557#define IPV6CTL_DAD_COUNT 16
558#define IPV6CTL_AUTO_FLOWLABEL 17
559#define IPV6CTL_DEFMCASTHLIM 18
560#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
561#define IPV6CTL_KAME_VERSION 20
562#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
563#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
564#if 0 /* obsolete */
565#define IPV6CTL_MAPPED_ADDR 23
984263bc 566#define IPV6CTL_V6ONLY 24
2fd1df03 567#endif
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568#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
569#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
570#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
571
572#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */
573#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
574#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
575#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
576#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
577
02809d29 578#define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */
74ceb998 579#define IPV6CTL_MINHLIM 39 /* minimum Hop-Limit */
02809d29 580
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581#define IPV6CTL_MAXFRAGS 41 /* max fragments */
582
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583/* New entries should be added here from current IPV6CTL_MAXID value. */
584/* to define items, should talk with KAME guys first, for *BSD compatibility */
984263bc 585
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586#define ICMPV6CTL_ND6_ONLINKNSRFC4861 47
587#define IPV6CTL_MAXID 48
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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
1bd40720 599
1bd40720 600struct ifnet;
77db7802 601struct mbuf;
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602struct sockaddr;
603struct sockaddr_in;
604struct sockaddr_in6;
984263bc 605
77db7802 606int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t);
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607int in6_localaddr (struct in6_addr *);
608int in6_addrscope (struct in6_addr *);
cfd79120 609struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *, struct ucred *);
56d702cc 610struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *);
984263bc 611
02809d29 612void addrsel_policy_init (void);
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613
614#define satosin6(sa) ((struct sockaddr_in6 *)(sa))
615#define sin6tosa(sin6) ((struct sockaddr *)(sin6))
616#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
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617#endif /* _KERNEL */
618
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619#include <sys/cdefs.h> /* for __BEGIN_DECLS and __END_DECLS */
620
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621__BEGIN_DECLS
622struct cmsghdr;
623
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624uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int);
625int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int);
626int inet6_option_find (const struct cmsghdr *, uint8_t **, int);
627int inet6_option_init (void *, struct cmsghdr **, int);
628int inet6_option_next (const struct cmsghdr *, uint8_t **);
629int inet6_option_space (int);
630
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631int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **);
632int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **);
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633int inet6_opt_finish (void *, socklen_t, int);
634int inet6_opt_get_val (void *, int, void *, socklen_t);
635int inet6_opt_init (void *, socklen_t);
636int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **);
637int inet6_opt_set_val (void *, int, void *, socklen_t);
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638
639int inet6_rth_add (void *, const struct in6_addr *);
640struct in6_addr *inet6_rth_getaddr (const void *, int);
23ac31f2 641void *inet6_rth_init (void *, socklen_t, int, int);
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642int inet6_rth_reverse (const void *, void *);
643int inet6_rth_segments (const void *);
23ac31f2 644socklen_t inet6_rth_space (int, int);
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645
646int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *,
647 unsigned int);
648struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int);
649int inet6_rthdr_getflags (const struct cmsghdr *, int);
650struct cmsghdr *inet6_rthdr_init (void *, int);
651int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int);
77db7802 652int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *);
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653int inet6_rthdr_segments (const struct cmsghdr *);
654size_t inet6_rthdr_space (int, int);
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655__END_DECLS
656
657#endif /* !_NETINET6_IN6_H_ */