Fix size types.
[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 $ */
9499b2b6 2/* $DragonFly: src/sys/netinet6/in6.h,v 1.10 2007/08/21 20:03:20 corecode 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
76/*
77 * Identification of the network protocol stack
78 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
79 * has the table of implementation/integration differences.
80 */
81#define __KAME__
82#define __KAME_VERSION "20010528/FreeBSD"
83
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84#ifndef _SOCKLEN_T_DECLARED
85#define _SOCKLEN_T_DECLARED
86typedef __socklen_t socklen_t;
87#endif
88
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89/*
90 * Local port number conventions:
91 *
92 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
93 * unless a kernel is compiled with IPNOPRIVPORTS defined.
94 *
95 * When a user does a bind(2) or connect(2) with a port number of zero,
96 * a non-conflicting local port address is chosen.
97 *
98 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
99 * that is settable by sysctl(3); net.inet.ip.anonportmin and
100 * net.inet.ip.anonportmax respectively.
101 *
102 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
103 * default assignment range.
104 *
105 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
106 *
107 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
108 * and exists only for FreeBSD compatibility purposes.
109 *
110 * The value IP_PORTRANGE_LOW changes the range to the "low" are
111 * that is (by convention) restricted to privileged processes.
112 * This convention is based on "vouchsafe" principles only.
113 * It is only secure if you trust the remote host to restrict these ports.
114 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
115 */
116
117#define IPV6PORT_RESERVED 1024
118#define IPV6PORT_ANONMIN 49152
119#define IPV6PORT_ANONMAX 65535
120#define IPV6PORT_RESERVEDMIN 600
121#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
122
123/*
124 * IPv6 address
125 */
126struct in6_addr {
127 union {
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128 uint8_t __u6_addr8[16];
129 uint16_t __u6_addr16[8];
130 uint32_t __u6_addr32[4];
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131 } __u6_addr; /* 128-bit IP6 address */
132};
133
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134#define s6_addr __u6_addr.__u6_addr8
135#define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */
136#define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */
137#ifdef _KERNEL /* XXX nonstandard */
138#define s6_addr8 __u6_addr.__u6_addr8
139#define s6_addr16 __u6_addr.__u6_addr16
140#define s6_addr32 __u6_addr.__u6_addr32
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141#endif
142
143#define INET6_ADDRSTRLEN 46
144
145/*
146 * Socket address for IPv6
147 */
148#ifndef _XOPEN_SOURCE
149#define SIN6_LEN
150#endif
151struct sockaddr_in6 {
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152 uint8_t sin6_len; /* length of this struct(sa_family_t)*/
153 uint8_t sin6_family; /* AF_INET6 (sa_family_t) */
154 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/
155 uint32_t sin6_flowinfo; /* IP6 flow information */
984263bc 156 struct in6_addr sin6_addr; /* IP6 address */
77db7802 157 uint32_t sin6_scope_id; /* scope zone index */
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158};
159
160/*
161 * Local definition for masks
162 */
163#ifdef _KERNEL /* XXX nonstandard */
164#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
165#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
166 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
167#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
168 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
169#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
170 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
171#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
172 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
173#endif
174
175#ifdef _KERNEL
176extern const struct sockaddr_in6 sa6_any;
177
178extern const struct in6_addr in6mask0;
179extern const struct in6_addr in6mask32;
180extern const struct in6_addr in6mask64;
181extern const struct in6_addr in6mask96;
182extern const struct in6_addr in6mask128;
183#endif /* _KERNEL */
184
185/*
186 * Macros started with IPV6_ADDR is KAME local
187 */
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188#if BYTE_ORDER == BIG_ENDIAN
189#define _IPV6_ADDR_INT16_UL_MASK 0xffc0
190#define _IPV6_ADDR_INT16_ULL 0xfe80
191#define _IPV6_ADDR_INT16_USL 0xfec0
192#else
193#define _IPV6_ADDR_INT16_UL_MASK 0xc0ff
194#define _IPV6_ADDR_INT16_ULL 0x80fe
195#define _IPV6_ADDR_INT16_USL 0xc0fe
196#endif
197
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198#ifdef _KERNEL /* XXX nonstandard */
199#if BYTE_ORDER == BIG_ENDIAN
200#define IPV6_ADDR_INT32_ONE 1
201#define IPV6_ADDR_INT32_TWO 2
202#define IPV6_ADDR_INT32_MNL 0xff010000
203#define IPV6_ADDR_INT32_MLL 0xff020000
204#define IPV6_ADDR_INT32_SMP 0x0000ffff
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205#define IPV6_ADDR_INT16_MLL 0xff02
206#elif BYTE_ORDER == LITTLE_ENDIAN
207#define IPV6_ADDR_INT32_ONE 0x01000000
208#define IPV6_ADDR_INT32_TWO 0x02000000
209#define IPV6_ADDR_INT32_MNL 0x000001ff
210#define IPV6_ADDR_INT32_MLL 0x000002ff
211#define IPV6_ADDR_INT32_SMP 0xffff0000
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212#define IPV6_ADDR_INT16_MLL 0x02ff
213#endif
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214#define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL
215#define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL
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216#endif
217
218/*
219 * Definition of some useful macros to handle IP6 addresses
220 */
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221#define IN6ADDR_ANY_INIT \
222 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
984263bc 223 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
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224#define IN6ADDR_LOOPBACK_INIT \
225 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
984263bc 226 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
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227#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
228 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
984263bc 229 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
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230#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
231 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
984263bc 232 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
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233#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
234 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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235 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
236
15cc6e06 237#ifdef _KERNEL
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238extern const struct in6_addr kin6addr_any;
239extern const struct in6_addr kin6addr_loopback;
240extern const struct in6_addr kin6addr_nodelocal_allnodes;
241extern const struct in6_addr kin6addr_linklocal_allnodes;
242extern const struct in6_addr kin6addr_linklocal_allrouters;
15cc6e06 243#else
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244extern const struct in6_addr in6addr_any;
245extern const struct in6_addr in6addr_loopback;
246extern const struct in6_addr in6addr_nodelocal_allnodes;
247extern const struct in6_addr in6addr_linklocal_allnodes;
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248#endif
249
77db7802 250#define IN6_ARE_ADDR_EQUAL(a, b) \
984263bc 251 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
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252
253#ifdef _KERNEL /* non standard */
254/* see if two addresses are equal in a scope-conscious manner. */
255#define SA6_ARE_ADDR_EQUAL(a, b) \
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256 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
257 (a)->sin6_scope_id == (b)->sin6_scope_id) && \
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258 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0))
259#endif
260
261/*
262 * Unspecified
263 */
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264#define IN6_IS_ADDR_UNSPECIFIED(a) \
265 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \
266 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0)
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267
268/*
269 * Loopback
270 */
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271#define IN6_IS_ADDR_LOOPBACK(a) \
272 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \
273 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1))
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274
275/*
77db7802 276 * Mapped
984263bc 277 */
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278#define IN6_IS_ADDR_V4MAPPED(a) \
279 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \
280 (a)->_s6_addr32[2] == ntohl(0x0000ffff))
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281
282/*
77db7802 283 * IPv4 compatible. Deprecated by RFC4291.
984263bc 284 */
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285#define IN6_IS_ADDR_V4COMPAT(a) \
286 ((a)->_s6_addr32[0] == 0 && \
287 (a)->_s6_addr32[1] == 0 && \
288 (a)->_s6_addr32[2] == 0 && \
289 (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1))
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290
291/*
292 * KAME Scope Values
293 */
294
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295#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
296#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
297#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
298#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
299#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
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300
301#ifdef _KERNEL /* XXX nonstandard */
302#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
303#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
304#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
305#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
306#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
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307#endif
308
309/*
310 * Unicast Scope
311 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
312 */
77db7802 313#define IN6_IS_ADDR_LINKLOCAL(a) \
ea60b7ba 314 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL)
77db7802 315#define IN6_IS_ADDR_SITELOCAL(a) \
ea60b7ba 316 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL)
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317
318/*
319 * Multicast
320 */
321#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
984263bc 322#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
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323#ifdef _KERNEL /* XXX nonstandard */
324#define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a)
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325#endif
326
327/*
328 * Multicast Scope
329 */
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330#define IN6_IS_ADDR_MC_NODELOCAL(a) \
331 (IN6_IS_ADDR_MULTICAST(a) && \
984263bc 332 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
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333
334#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
335 (IN6_IS_ADDR_MULTICAST(a) && \
984263bc 336 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
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337
338#define IN6_IS_ADDR_MC_SITELOCAL(a) \
339 (IN6_IS_ADDR_MULTICAST(a) && \
984263bc 340 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
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341
342#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
343 (IN6_IS_ADDR_MULTICAST(a) && \
984263bc 344 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
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345
346#define IN6_IS_ADDR_MC_GLOBAL(a) \
347 (IN6_IS_ADDR_MULTICAST(a) && \
984263bc 348 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
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349
350#ifdef _KERNEL /* nonstandard */
351/*
352 * KAME Scope
353 */
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354#define IN6_IS_SCOPE_LINKLOCAL(a) \
355 (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a))
984263bc 356
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357#define IFA6_IS_DEPRECATED(a) \
358 ((a)->ia6_lifetime.ia6t_preferred != 0 && \
984263bc 359 (a)->ia6_lifetime.ia6t_preferred < time_second)
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360
361#define IFA6_IS_INVALID(a) \
362 ((a)->ia6_lifetime.ia6t_expire != 0 && \
984263bc 363 (a)->ia6_lifetime.ia6t_expire < time_second)
77db7802 364#endif
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365
366/*
367 * IP6 route structure
368 */
369#ifndef _XOPEN_SOURCE
370struct route_in6 {
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371 struct rtentry *ro_rt;
372 struct sockaddr_in6 ro_dst;
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373};
374#endif
375
376/*
377 * Options for use with [gs]etsockopt at the IPV6 level.
378 * First word of comment is data type; bool is stored in int.
379 */
380/* no hdrincl */
381#if 0 /* the followings are relic in IPv4 and hence are disabled */
382#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
383#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
384#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
385#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
386#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
387#endif
388#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
389#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
390#define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */
391#define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */
392#define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */
393#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
394#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
395#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
396#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
397/* RFC2292 options */
398#define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */
399#define IPV6_HOPLIMIT 20 /* bool; hop limit */
400#define IPV6_NEXTHOP 21 /* bool; next hop addr */
401#define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */
402#define IPV6_DSTOPTS 23 /* bool; destination option */
403#define IPV6_RTHDR 24 /* bool; routing header */
404#define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
405
406#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
407#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
408#ifndef _KERNEL
409#define IPV6_BINDV6ONLY IPV6_V6ONLY
410#endif
411
412#if 1 /* IPSEC */
413#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
414#endif
415#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */
416
417#if 1 /* IPV6FIREWALL */
418#define IPV6_FW_ADD 30 /* add a firewall rule to chain */
419#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
420#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
421#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
422#define IPV6_FW_GET 34 /* get entire firewall rule chain */
423#endif
424
425/* to define items, should talk with KAME guys first, for *BSD compatibility */
426
427#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
428#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
429#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
430
431/*
432 * Defaults and limits for options
433 */
434#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
435#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
436
437/*
438 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
439 */
440struct ipv6_mreq {
441 struct in6_addr ipv6mr_multiaddr;
442 unsigned int ipv6mr_interface;
443};
444
445/*
446 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
447 */
448struct in6_pktinfo {
449 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
450 unsigned int ipi6_ifindex; /* send/recv interface index */
451};
452
453/*
454 * Argument for IPV6_PORTRANGE:
455 * - which range to search when port is unspecified at bind() or connect()
456 */
457#define IPV6_PORTRANGE_DEFAULT 0 /* default range */
458#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
459#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
460
461#ifndef _XOPEN_SOURCE
462/*
463 * Definitions for inet6 sysctl operations.
464 *
465 * Third level is protocol number.
466 * Fourth level is desired variable within that protocol.
467 */
468#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
469
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470#define CTL_IPV6PROTO_NAMES { \
471 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
472 { 0, 0 }, \
473 { "tcp6", CTLTYPE_NODE }, \
474 { 0, 0 }, \
475 { 0, 0 }, \
476 { 0, 0 }, \
477 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
478 { 0, 0 }, \
479 { 0, 0 }, \
480 { "udp6", CTLTYPE_NODE }, \
481 { 0, 0 }, \
482 { 0, 0 }, \
483 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
484 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
485 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
486 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
487 { 0, 0 }, \
488 { "ip6", CTLTYPE_NODE }, \
489 { 0, 0 }, \
490 { 0, 0 }, \
491 { 0, 0 }, \
492 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
493 { 0, 0 }, \
494 { "ipsec6", CTLTYPE_NODE }, \
495 { 0, 0 }, \
496 { 0, 0 }, \
497 { 0, 0 }, \
498 { 0, 0 }, \
499 { 0, 0 }, \
500 { 0, 0 }, \
501 { "icmp6", CTLTYPE_NODE }, \
502 { 0, 0 }, \
503 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
504 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
505 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
506 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
507 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
508 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 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 }, \
512 { 0, 0 }, \
513 { 0, 0 }, \
514 { "pim6", CTLTYPE_NODE }, \
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515}
516
517/*
518 * Names for IP sysctl objects
519 */
520#define IPV6CTL_FORWARDING 1 /* act as router */
521#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
522#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
523#ifdef notyet
524#define IPV6CTL_DEFMTU 4 /* default MTU */
525#endif
526#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
527#define IPV6CTL_STATS 6 /* stats */
528#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
529#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
530#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
531#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
532#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
533#define IPV6CTL_ACCEPT_RTADV 12
534#define IPV6CTL_KEEPFAITH 13
535#define IPV6CTL_LOG_INTERVAL 14
536#define IPV6CTL_HDRNESTLIMIT 15
537#define IPV6CTL_DAD_COUNT 16
538#define IPV6CTL_AUTO_FLOWLABEL 17
539#define IPV6CTL_DEFMCASTHLIM 18
540#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
541#define IPV6CTL_KAME_VERSION 20
542#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
543#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
544#if 0 /* obsolete */
545#define IPV6CTL_MAPPED_ADDR 23
546#endif
547#define IPV6CTL_V6ONLY 24
548#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
549#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
550#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
551
552#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */
553#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
554#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
555#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
556#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
557
558/* New entries should be added here from current IPV6CTL_MAXID value. */
559/* to define items, should talk with KAME guys first, for *BSD compatibility */
560#define IPV6CTL_MAXID 37
561
562#endif /* !_XOPEN_SOURCE */
563
564/*
565 * Redefinition of mbuf flags
566 */
567#define M_AUTHIPHDR M_PROTO2
568#define M_DECRYPTED M_PROTO3
569#define M_LOOP M_PROTO4
570#define M_AUTHIPDGM M_PROTO5
571
572#ifdef _KERNEL
1bd40720 573
1bd40720 574struct ifnet;
77db7802 575struct mbuf;
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576struct sockaddr;
577struct sockaddr_in;
578struct sockaddr_in6;
984263bc 579
77db7802 580int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t);
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581int in6_localaddr (struct in6_addr *);
582int in6_addrscope (struct in6_addr *);
583struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *);
584struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *);
77db7802 585void in6_if_up (struct ifnet *);
984263bc 586
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587void in6_sin6_2_sin (struct sockaddr_in *sin, struct sockaddr_in6 *sin6);
588void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, struct sockaddr_in6 *sin6);
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589void in6_sin6_2_sin_in_sock (struct sockaddr *nam);
590void in6_sin_2_v4mapsin6_in_sock (struct sockaddr **nam);
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591
592#define satosin6(sa) ((struct sockaddr_in6 *)(sa))
593#define sin6tosa(sin6) ((struct sockaddr *)(sin6))
594#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
595
77db7802 596extern int (*faithprefix_p)(struct in6_addr *);
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597#endif /* _KERNEL */
598
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599#include <sys/cdefs.h> /* for __BEGIN_DECLS and __END_DECLS */
600
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601__BEGIN_DECLS
602struct cmsghdr;
603
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604uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int);
605int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int);
606int inet6_option_find (const struct cmsghdr *, uint8_t **, int);
607int inet6_option_init (void *, struct cmsghdr **, int);
608int inet6_option_next (const struct cmsghdr *, uint8_t **);
609int inet6_option_space (int);
610
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611int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **);
612int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **);
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613int inet6_opt_finish (void *, socklen_t, int);
614int inet6_opt_get_val (void *, int, void *, socklen_t);
615int inet6_opt_init (void *, socklen_t);
616int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **);
617int inet6_opt_set_val (void *, int, void *, socklen_t);
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618
619int inet6_rth_add (void *, const struct in6_addr *);
620struct in6_addr *inet6_rth_getaddr (const void *, int);
23ac31f2 621void *inet6_rth_init (void *, socklen_t, int, int);
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622int inet6_rth_reverse (const void *, void *);
623int inet6_rth_segments (const void *);
23ac31f2 624socklen_t inet6_rth_space (int, int);
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625
626int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *,
627 unsigned int);
628struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int);
629int inet6_rthdr_getflags (const struct cmsghdr *, int);
630struct cmsghdr *inet6_rthdr_init (void *, int);
631int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int);
632#if 0 /* not implemented yet */
633int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *);
984263bc 634#endif
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635int inet6_rthdr_segments (const struct cmsghdr *);
636size_t inet6_rthdr_space (int, int);
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637__END_DECLS
638
639#endif /* !_NETINET6_IN6_H_ */