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984263bc MD |
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. | |
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_ | |
69 | #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" | |
70 | #endif | |
71 | ||
72 | #ifndef _NETINET6_IN6_H_ | |
73 | #define _NETINET6_IN6_H_ | |
74 | ||
75 | /* | |
76 | * Identification of the network protocol stack | |
77 | * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE | |
78 | * has the table of implementation/integration differences. | |
79 | */ | |
80 | #define __KAME__ | |
81 | #define __KAME_VERSION "20010528/FreeBSD" | |
82 | ||
23ac31f2 HT |
83 | #ifndef _SOCKLEN_T_DECLARED |
84 | #define _SOCKLEN_T_DECLARED | |
85 | typedef __socklen_t socklen_t; | |
86 | #endif | |
87 | ||
984263bc MD |
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 | */ | |
cca780f8 | 125 | #ifndef _STRUCT_IN6_ADDR_DECLARED |
984263bc MD |
126 | struct in6_addr { |
127 | union { | |
77db7802 JH |
128 | uint8_t __u6_addr8[16]; |
129 | uint16_t __u6_addr16[8]; | |
130 | uint32_t __u6_addr32[4]; | |
984263bc MD |
131 | } __u6_addr; /* 128-bit IP6 address */ |
132 | }; | |
cca780f8 MD |
133 | #define _STRUCT_IN6_ADDR_DECLARED |
134 | #endif | |
984263bc | 135 | |
77db7802 JH |
136 | #define s6_addr __u6_addr.__u6_addr8 |
137 | #define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */ | |
138 | #define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */ | |
8514520e | 139 | #if __BSD_VISIBLE /* XXX nonstandard */ |
77db7802 JH |
140 | #define s6_addr8 __u6_addr.__u6_addr8 |
141 | #define s6_addr16 __u6_addr.__u6_addr16 | |
142 | #define s6_addr32 __u6_addr.__u6_addr32 | |
984263bc MD |
143 | #endif |
144 | ||
145 | #define INET6_ADDRSTRLEN 46 | |
146 | ||
147 | /* | |
148 | * Socket address for IPv6 | |
149 | */ | |
150 | #ifndef _XOPEN_SOURCE | |
151 | #define SIN6_LEN | |
152 | #endif | |
153 | struct sockaddr_in6 { | |
77db7802 | 154 | uint8_t sin6_len; /* length of this struct(sa_family_t)*/ |
1fb34cd6 | 155 | sa_family_t sin6_family; /* AF_INET6 */ |
77db7802 JH |
156 | uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ |
157 | uint32_t sin6_flowinfo; /* IP6 flow information */ | |
984263bc | 158 | struct in6_addr sin6_addr; /* IP6 address */ |
77db7802 | 159 | uint32_t sin6_scope_id; /* scope zone index */ |
984263bc MD |
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 | ||
177 | #ifdef _KERNEL | |
178 | extern const struct sockaddr_in6 sa6_any; | |
179 | ||
180 | extern const struct in6_addr in6mask0; | |
181 | extern const struct in6_addr in6mask32; | |
182 | extern const struct in6_addr in6mask64; | |
183 | extern const struct in6_addr in6mask96; | |
184 | extern const struct in6_addr in6mask128; | |
185 | #endif /* _KERNEL */ | |
186 | ||
187 | /* | |
188 | * Macros started with IPV6_ADDR is KAME local | |
189 | */ | |
ea60b7ba JH |
190 | #if BYTE_ORDER == BIG_ENDIAN |
191 | #define _IPV6_ADDR_INT16_UL_MASK 0xffc0 | |
192 | #define _IPV6_ADDR_INT16_ULL 0xfe80 | |
193 | #define _IPV6_ADDR_INT16_USL 0xfec0 | |
194 | #else | |
195 | #define _IPV6_ADDR_INT16_UL_MASK 0xc0ff | |
196 | #define _IPV6_ADDR_INT16_ULL 0x80fe | |
197 | #define _IPV6_ADDR_INT16_USL 0xc0fe | |
198 | #endif | |
199 | ||
984263bc MD |
200 | #ifdef _KERNEL /* XXX nonstandard */ |
201 | #if BYTE_ORDER == BIG_ENDIAN | |
202 | #define IPV6_ADDR_INT32_ONE 1 | |
203 | #define IPV6_ADDR_INT32_TWO 2 | |
204 | #define IPV6_ADDR_INT32_MNL 0xff010000 | |
205 | #define IPV6_ADDR_INT32_MLL 0xff020000 | |
206 | #define IPV6_ADDR_INT32_SMP 0x0000ffff | |
984263bc MD |
207 | #define IPV6_ADDR_INT16_MLL 0xff02 |
208 | #elif BYTE_ORDER == LITTLE_ENDIAN | |
209 | #define IPV6_ADDR_INT32_ONE 0x01000000 | |
210 | #define IPV6_ADDR_INT32_TWO 0x02000000 | |
211 | #define IPV6_ADDR_INT32_MNL 0x000001ff | |
212 | #define IPV6_ADDR_INT32_MLL 0x000002ff | |
213 | #define IPV6_ADDR_INT32_SMP 0xffff0000 | |
984263bc MD |
214 | #define IPV6_ADDR_INT16_MLL 0x02ff |
215 | #endif | |
ea60b7ba JH |
216 | #define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL |
217 | #define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL | |
984263bc MD |
218 | #endif |
219 | ||
220 | /* | |
221 | * Definition of some useful macros to handle IP6 addresses | |
222 | */ | |
77db7802 JH |
223 | #define IN6ADDR_ANY_INIT \ |
224 | {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ | |
984263bc | 225 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} |
77db7802 JH |
226 | #define IN6ADDR_LOOPBACK_INIT \ |
227 | {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ | |
984263bc | 228 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} |
77db7802 JH |
229 | #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ |
230 | {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ | |
984263bc | 231 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} |
cb3deea5 SZ |
232 | #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ |
233 | {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ | |
234 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} | |
77db7802 JH |
235 | #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ |
236 | {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ | |
984263bc | 237 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} |
77db7802 JH |
238 | #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ |
239 | {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ | |
984263bc | 240 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} |
5821a685 SZ |
241 | #define IN6ADDR_LINKLOCAL_ALLMDNS_INIT \ |
242 | {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ | |
243 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb }}} | |
984263bc | 244 | |
15cc6e06 | 245 | #ifdef _KERNEL |
84204577 MD |
246 | extern const struct in6_addr kin6addr_any; |
247 | extern const struct in6_addr kin6addr_loopback; | |
248 | extern const struct in6_addr kin6addr_nodelocal_allnodes; | |
249 | extern const struct in6_addr kin6addr_linklocal_allnodes; | |
250 | extern const struct in6_addr kin6addr_linklocal_allrouters; | |
15cc6e06 | 251 | #else |
15cc6e06 MD |
252 | extern const struct in6_addr in6addr_any; |
253 | extern const struct in6_addr in6addr_loopback; | |
254 | extern const struct in6_addr in6addr_nodelocal_allnodes; | |
255 | extern const struct in6_addr in6addr_linklocal_allnodes; | |
15cc6e06 MD |
256 | #endif |
257 | ||
77db7802 | 258 | #define IN6_ARE_ADDR_EQUAL(a, b) \ |
984263bc | 259 | (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) |
984263bc MD |
260 | |
261 | #ifdef _KERNEL /* non standard */ | |
262 | /* see if two addresses are equal in a scope-conscious manner. */ | |
263 | #define SA6_ARE_ADDR_EQUAL(a, b) \ | |
77db7802 JH |
264 | (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ |
265 | (a)->sin6_scope_id == (b)->sin6_scope_id) && \ | |
984263bc MD |
266 | (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) |
267 | #endif | |
268 | ||
269 | /* | |
270 | * Unspecified | |
271 | */ | |
77db7802 JH |
272 | #define IN6_IS_ADDR_UNSPECIFIED(a) \ |
273 | ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ | |
274 | (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0) | |
984263bc MD |
275 | |
276 | /* | |
277 | * Loopback | |
278 | */ | |
77db7802 JH |
279 | #define IN6_IS_ADDR_LOOPBACK(a) \ |
280 | ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ | |
281 | (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1)) | |
984263bc MD |
282 | |
283 | /* | |
77db7802 | 284 | * Mapped |
984263bc | 285 | */ |
77db7802 JH |
286 | #define IN6_IS_ADDR_V4MAPPED(a) \ |
287 | ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ | |
288 | (a)->_s6_addr32[2] == ntohl(0x0000ffff)) | |
984263bc MD |
289 | |
290 | /* | |
77db7802 | 291 | * IPv4 compatible. Deprecated by RFC4291. |
984263bc | 292 | */ |
77db7802 JH |
293 | #define IN6_IS_ADDR_V4COMPAT(a) \ |
294 | ((a)->_s6_addr32[0] == 0 && \ | |
295 | (a)->_s6_addr32[1] == 0 && \ | |
296 | (a)->_s6_addr32[2] == 0 && \ | |
297 | (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1)) | |
984263bc MD |
298 | |
299 | /* | |
300 | * KAME Scope Values | |
301 | */ | |
302 | ||
984263bc | 303 | #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 |
cb3deea5 | 304 | #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 |
984263bc MD |
305 | #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 |
306 | #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 | |
307 | #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ | |
308 | #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e | |
77db7802 JH |
309 | |
310 | #ifdef _KERNEL /* XXX nonstandard */ | |
311 | #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 | |
70224baa | 312 | #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 |
77db7802 JH |
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 | |
984263bc MD |
317 | #endif |
318 | ||
319 | /* | |
320 | * Unicast Scope | |
321 | * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). | |
322 | */ | |
77db7802 | 323 | #define IN6_IS_ADDR_LINKLOCAL(a) \ |
ea60b7ba | 324 | (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL) |
77db7802 | 325 | #define IN6_IS_ADDR_SITELOCAL(a) \ |
ea60b7ba | 326 | (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL) |
984263bc MD |
327 | |
328 | /* | |
329 | * Multicast | |
330 | */ | |
331 | #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) | |
984263bc | 332 | #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) |
77db7802 JH |
333 | #ifdef _KERNEL /* XXX nonstandard */ |
334 | #define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a) | |
984263bc MD |
335 | #endif |
336 | ||
337 | /* | |
338 | * Multicast Scope | |
339 | */ | |
77db7802 JH |
340 | #define IN6_IS_ADDR_MC_NODELOCAL(a) \ |
341 | (IN6_IS_ADDR_MULTICAST(a) && \ | |
984263bc | 342 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) |
77db7802 | 343 | |
70224baa JL |
344 | #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ |
345 | (IN6_IS_ADDR_MULTICAST(a) && \ | |
346 | (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) | |
347 | ||
77db7802 JH |
348 | #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ |
349 | (IN6_IS_ADDR_MULTICAST(a) && \ | |
984263bc | 350 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) |
77db7802 JH |
351 | |
352 | #define IN6_IS_ADDR_MC_SITELOCAL(a) \ | |
353 | (IN6_IS_ADDR_MULTICAST(a) && \ | |
984263bc | 354 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) |
77db7802 JH |
355 | |
356 | #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ | |
357 | (IN6_IS_ADDR_MULTICAST(a) && \ | |
984263bc | 358 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) |
77db7802 JH |
359 | |
360 | #define IN6_IS_ADDR_MC_GLOBAL(a) \ | |
361 | (IN6_IS_ADDR_MULTICAST(a) && \ | |
984263bc | 362 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) |
984263bc MD |
363 | |
364 | #ifdef _KERNEL /* nonstandard */ | |
365 | /* | |
366 | * KAME Scope | |
367 | */ | |
77db7802 JH |
368 | #define IN6_IS_SCOPE_LINKLOCAL(a) \ |
369 | (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a)) | |
70224baa JL |
370 | #define IN6_IS_SCOPE_EMBED(a) \ |
371 | ((IN6_IS_ADDR_LINKLOCAL(a)) || \ | |
372 | (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ | |
373 | (IN6_IS_ADDR_MC_INTFACELOCAL(a))) | |
374 | ||
984263bc | 375 | |
77db7802 JH |
376 | #define IFA6_IS_DEPRECATED(a) \ |
377 | ((a)->ia6_lifetime.ia6t_preferred != 0 && \ | |
cec73927 | 378 | (a)->ia6_lifetime.ia6t_preferred < time_uptime) |
77db7802 JH |
379 | |
380 | #define IFA6_IS_INVALID(a) \ | |
381 | ((a)->ia6_lifetime.ia6t_expire != 0 && \ | |
cec73927 | 382 | (a)->ia6_lifetime.ia6t_expire < time_uptime) |
77db7802 | 383 | #endif |
984263bc MD |
384 | |
385 | /* | |
386 | * IP6 route structure | |
387 | */ | |
388 | #ifndef _XOPEN_SOURCE | |
389 | struct route_in6 { | |
77db7802 JH |
390 | struct rtentry *ro_rt; |
391 | struct sockaddr_in6 ro_dst; | |
984263bc MD |
392 | }; |
393 | #endif | |
394 | ||
395 | /* | |
396 | * Options for use with [gs]etsockopt at the IPV6 level. | |
397 | * First word of comment is data type; bool is stored in int. | |
398 | */ | |
399 | /* no hdrincl */ | |
400 | #if 0 /* the followings are relic in IPv4 and hence are disabled */ | |
401 | #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ | |
402 | #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ | |
403 | #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ | |
404 | #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ | |
405 | #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ | |
406 | #endif | |
407 | #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ | |
408 | #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ | |
409 | #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ | |
410 | #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ | |
411 | #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ | |
412 | #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ | |
413 | #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ | |
414 | #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ | |
415 | #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ | |
416 | /* RFC2292 options */ | |
5aa41e7c HT |
417 | #ifdef _KERNEL |
418 | #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ | |
419 | #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ | |
420 | #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ | |
421 | #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ | |
422 | #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ | |
423 | #define IPV6_2292RTHDR 24 /* bool; routing header */ | |
424 | #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ | |
425 | #endif | |
984263bc MD |
426 | |
427 | #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ | |
428 | #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ | |
429 | #ifndef _KERNEL | |
430 | #define IPV6_BINDV6ONLY IPV6_V6ONLY | |
431 | #endif | |
432 | ||
433 | #if 1 /* IPSEC */ | |
434 | #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ | |
435 | #endif | |
436 | #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ | |
437 | ||
438 | #if 1 /* IPV6FIREWALL */ | |
439 | #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ | |
440 | #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ | |
441 | #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ | |
442 | #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ | |
443 | #define IPV6_FW_GET 34 /* get entire firewall rule chain */ | |
444 | #endif | |
445 | ||
5aa41e7c HT |
446 | /* |
447 | * new socket options introduced in RFC3542 | |
448 | */ | |
449 | #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ | |
450 | #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ | |
451 | #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ | |
452 | #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ | |
453 | #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ | |
454 | #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ | |
455 | #ifdef _KERNEL | |
456 | #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ | |
457 | #endif | |
458 | #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ | |
459 | #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ | |
460 | ||
461 | /* mtuinfo; get the current path MTU (sopt), | |
462 | * 4 bytes int; MTU notification (cmsg) | |
463 | */ | |
464 | #define IPV6_PATHMTU 44 | |
465 | #if 0 /*obsoleted during 2292bis -> 3542*/ | |
466 | #define IPV6_REACHCONF 45 /* no data; ND reachability confirm | |
467 | (cmsg only/not in of RFC3542) */ | |
468 | #endif | |
469 | #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ | |
470 | #define IPV6_HOPLIMIT 47 /* int; send hop limit */ | |
471 | #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ | |
472 | #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ | |
473 | #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ | |
474 | #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ | |
475 | #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options, this is obsoleted by RFC3542 */ | |
476 | ||
477 | #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ | |
478 | ||
479 | #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ | |
480 | ||
481 | #define IPV6_TCLASS 61 /* int; send traffic class value */ | |
482 | #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ | |
483 | ||
484 | #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as | |
485 | * the source address. | |
486 | */ | |
487 | /* | |
488 | * The following option is private; do not use it from user applications. | |
489 | * It is deliberately defined to the same value as IP_MSFILTER. | |
490 | */ | |
491 | #define IPV6_MSFILTER 74 /* struct __msfilterreq; | |
492 | * set/get multicast source filter list. | |
493 | */ | |
984263bc MD |
494 | /* to define items, should talk with KAME guys first, for *BSD compatibility */ |
495 | ||
496 | #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ | |
497 | #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ | |
fa690d60 | 498 | #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ |
984263bc MD |
499 | |
500 | /* | |
501 | * Defaults and limits for options | |
502 | */ | |
503 | #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ | |
504 | #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ | |
505 | ||
506 | /* | |
507 | * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. | |
508 | */ | |
509 | struct ipv6_mreq { | |
510 | struct in6_addr ipv6mr_multiaddr; | |
511 | unsigned int ipv6mr_interface; | |
512 | }; | |
513 | ||
514 | /* | |
515 | * IPV6_PKTINFO: Packet information(RFC2292 sec 5) | |
516 | */ | |
517 | struct in6_pktinfo { | |
518 | struct in6_addr ipi6_addr; /* src/dst IPv6 address */ | |
519 | unsigned int ipi6_ifindex; /* send/recv interface index */ | |
520 | }; | |
521 | ||
5aa41e7c HT |
522 | /* |
523 | * New Control structure for IPV6_RECVPATHMTU socket option introduced in RFC3542. | |
524 | */ | |
525 | struct ip6_mtuinfo { | |
526 | struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ | |
527 | uint32_t ip6m_mtu; | |
528 | }; | |
529 | ||
984263bc MD |
530 | /* |
531 | * Argument for IPV6_PORTRANGE: | |
532 | * - which range to search when port is unspecified at bind() or connect() | |
533 | */ | |
534 | #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ | |
535 | #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ | |
536 | #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ | |
537 | ||
538 | #ifndef _XOPEN_SOURCE | |
539 | /* | |
540 | * Definitions for inet6 sysctl operations. | |
541 | * | |
542 | * Third level is protocol number. | |
543 | * Fourth level is desired variable within that protocol. | |
544 | */ | |
545 | #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ | |
546 | ||
984263bc MD |
547 | /* |
548 | * Names for IP sysctl objects | |
549 | */ | |
550 | #define IPV6CTL_FORWARDING 1 /* act as router */ | |
551 | #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ | |
552 | #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ | |
553 | #ifdef notyet | |
554 | #define IPV6CTL_DEFMTU 4 /* default MTU */ | |
555 | #endif | |
556 | #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ | |
557 | #define IPV6CTL_STATS 6 /* stats */ | |
558 | #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ | |
559 | #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ | |
560 | #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ | |
561 | #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ | |
562 | #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ | |
563 | #define IPV6CTL_ACCEPT_RTADV 12 | |
564 | #define IPV6CTL_KEEPFAITH 13 | |
565 | #define IPV6CTL_LOG_INTERVAL 14 | |
566 | #define IPV6CTL_HDRNESTLIMIT 15 | |
567 | #define IPV6CTL_DAD_COUNT 16 | |
568 | #define IPV6CTL_AUTO_FLOWLABEL 17 | |
569 | #define IPV6CTL_DEFMCASTHLIM 18 | |
570 | #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ | |
571 | #define IPV6CTL_KAME_VERSION 20 | |
572 | #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ | |
573 | #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ | |
574 | #if 0 /* obsolete */ | |
575 | #define IPV6CTL_MAPPED_ADDR 23 | |
984263bc | 576 | #define IPV6CTL_V6ONLY 24 |
2fd1df03 | 577 | #endif |
984263bc MD |
578 | #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ |
579 | #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ | |
580 | #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ | |
581 | ||
582 | #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ | |
583 | #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ | |
584 | #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ | |
585 | #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ | |
586 | #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ | |
587 | ||
02809d29 | 588 | #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ |
74ceb998 | 589 | #define IPV6CTL_MINHLIM 39 /* minimum Hop-Limit */ |
02809d29 | 590 | |
f2d599d1 SZ |
591 | #define IPV6CTL_MAXFRAGS 41 /* max fragments */ |
592 | ||
984263bc MD |
593 | /* New entries should be added here from current IPV6CTL_MAXID value. */ |
594 | /* to define items, should talk with KAME guys first, for *BSD compatibility */ | |
984263bc | 595 | |
f5164be2 MD |
596 | #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 |
597 | #define IPV6CTL_MAXID 48 | |
984263bc MD |
598 | #endif /* !_XOPEN_SOURCE */ |
599 | ||
600 | /* | |
601 | * Redefinition of mbuf flags | |
602 | */ | |
603 | #define M_AUTHIPHDR M_PROTO2 | |
604 | #define M_DECRYPTED M_PROTO3 | |
605 | #define M_LOOP M_PROTO4 | |
606 | #define M_AUTHIPDGM M_PROTO5 | |
607 | ||
608 | #ifdef _KERNEL | |
1bd40720 | 609 | |
1bd40720 | 610 | struct ifnet; |
77db7802 | 611 | struct mbuf; |
1bd40720 MD |
612 | struct sockaddr; |
613 | struct sockaddr_in; | |
614 | struct sockaddr_in6; | |
984263bc | 615 | |
77db7802 | 616 | int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t); |
56d702cc RG |
617 | int in6_localaddr (struct in6_addr *); |
618 | int in6_addrscope (struct in6_addr *); | |
cfd79120 | 619 | struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *, struct ucred *); |
56d702cc | 620 | struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *); |
77db7802 | 621 | void in6_if_up (struct ifnet *); |
984263bc | 622 | |
02809d29 | 623 | void addrsel_policy_init (void); |
984263bc MD |
624 | |
625 | #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) | |
626 | #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) | |
627 | #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) | |
628 | ||
77db7802 | 629 | extern int (*faithprefix_p)(struct in6_addr *); |
984263bc MD |
630 | #endif /* _KERNEL */ |
631 | ||
77db7802 JH |
632 | #include <sys/cdefs.h> /* for __BEGIN_DECLS and __END_DECLS */ |
633 | ||
984263bc MD |
634 | __BEGIN_DECLS |
635 | struct cmsghdr; | |
636 | ||
77db7802 JH |
637 | uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int); |
638 | int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int); | |
639 | int inet6_option_find (const struct cmsghdr *, uint8_t **, int); | |
640 | int inet6_option_init (void *, struct cmsghdr **, int); | |
641 | int inet6_option_next (const struct cmsghdr *, uint8_t **); | |
642 | int inet6_option_space (int); | |
643 | ||
9499b2b6 SS |
644 | int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **); |
645 | int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **); | |
23ac31f2 HT |
646 | int inet6_opt_finish (void *, socklen_t, int); |
647 | int inet6_opt_get_val (void *, int, void *, socklen_t); | |
648 | int inet6_opt_init (void *, socklen_t); | |
649 | int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **); | |
650 | int inet6_opt_set_val (void *, int, void *, socklen_t); | |
77db7802 JH |
651 | |
652 | int inet6_rth_add (void *, const struct in6_addr *); | |
653 | struct in6_addr *inet6_rth_getaddr (const void *, int); | |
23ac31f2 | 654 | void *inet6_rth_init (void *, socklen_t, int, int); |
77db7802 JH |
655 | int inet6_rth_reverse (const void *, void *); |
656 | int inet6_rth_segments (const void *); | |
23ac31f2 | 657 | socklen_t inet6_rth_space (int, int); |
77db7802 JH |
658 | |
659 | int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *, | |
660 | unsigned int); | |
661 | struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int); | |
662 | int inet6_rthdr_getflags (const struct cmsghdr *, int); | |
663 | struct cmsghdr *inet6_rthdr_init (void *, int); | |
664 | int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int); | |
665 | #if 0 /* not implemented yet */ | |
666 | int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *); | |
984263bc | 667 | #endif |
77db7802 JH |
668 | int inet6_rthdr_segments (const struct cmsghdr *); |
669 | size_t inet6_rthdr_space (int, int); | |
984263bc MD |
670 | __END_DECLS |
671 | ||
672 | #endif /* !_NETINET6_IN6_H_ */ |