1 /* $NetBSD: in6.h,v 1.57 2006/10/31 00:29:30 cbiere Exp $ */
2 /* $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei Exp $ */
3
4 /*
5 Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
6 This program and the accompanying materials are licensed and made available under
7 the terms and conditions of the BSD License that accompanies this distribution.
8 The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.
10
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
13 */
14
15 /*
16 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
17 * All rights reserved.
18 *
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
21 * are met:
22 * 1. Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
27 * 3. Neither the name of the project nor the names of its contributors
28 * may be used to endorse or promote products derived from this software
29 * without specific prior written permission.
30 *
31 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
34 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 * SUCH DAMAGE.
42 */
43
44 /*
45 * Copyright (c) 1982, 1986, 1990, 1993
46 * The Regents of the University of California. All rights reserved.
47 *
48 * Redistribution and use in source and binary forms, with or without
49 * modification, are permitted provided that the following conditions
50 * are met:
51 * 1. Redistributions of source code must retain the above copyright
52 * notice, this list of conditions and the following disclaimer.
53 * 2. Redistributions in binary form must reproduce the above copyright
54 * notice, this list of conditions and the following disclaimer in the
55 * documentation and/or other materials provided with the distribution.
56 * 3. Neither the name of the University nor the names of its contributors
57 * may be used to endorse or promote products derived from this software
58 * without specific prior written permission.
59 *
60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
70 * SUCH DAMAGE.
71 *
72 * @(#)in.h 8.3 (Berkeley) 1/3/94
73 */
74
75 #ifndef _NETINET6_IN6_H_
76 #define _NETINET6_IN6_H_
77
78 #ifndef __KAME_NETINET_IN_H_INCLUDED_
79 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
80 #endif
81
82 #include <sys/socket.h>
83
84 /*
85 * Identification of the network protocol stack
86 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
87 * has the table of implementation/integration differences.
88 */
89 #define __KAME__
90 #define __KAME_VERSION "NetBSD-current"
91
92 /*
93 * Local port number conventions:
94 *
95 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
96 * unless a kernel is compiled with IPNOPRIVPORTS defined.
97 *
98 * When a user does a bind(2) or connect(2) with a port number of zero,
99 * a non-conflicting local port address is chosen.
100 *
101 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
102 * that is settable by sysctl(3); net.inet.ip.anonportmin and
103 * net.inet.ip.anonportmax respectively.
104 *
105 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
106 * default assignment range.
107 *
108 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
109 *
110 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
111 * and exists only for FreeBSD compatibility purposes.
112 *
113 * The value IP_PORTRANGE_LOW changes the range to the "low" are
114 * that is (by convention) restricted to privileged processes.
115 * This convention is based on "vouchsafe" principles only.
116 * It is only secure if you trust the remote host to restrict these ports.
117 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
118 */
119
120 #if defined(_NETBSD_SOURCE)
121 #define IPV6PORT_RESERVED 1024
122 #define IPV6PORT_ANONMIN 49152
123 #define IPV6PORT_ANONMAX 65535
124 #define IPV6PORT_RESERVEDMIN 600
125 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
126 #endif
127
128 /*
129 * IPv6 address
130 */
131 struct in6_addr {
132 union {
133 __uint8_t __u6_addr8[16];
134 __uint16_t __u6_addr16[8];
135 uint32_t __u6_addr32[4];
136 } __u6_addr; /* 128-bit IP6 address */
137 };
138
139 #define s6_addr __u6_addr.__u6_addr8
140 #ifdef _KERNEL /* XXX nonstandard */
141 #define s6_addr8 __u6_addr.__u6_addr8
142 #define s6_addr16 __u6_addr.__u6_addr16
143 #define s6_addr32 __u6_addr.__u6_addr32
144 #endif
145
146 #define INET6_ADDRSTRLEN 46
147
148 /*
149 * Socket address for IPv6
150 */
151 #if defined(_NETBSD_SOURCE)
152 #define SIN6_LEN
153 #endif
154 struct sockaddr_in6 {
155 uint8_t sin6_len; /* length of this struct(socklen_t)*/
156 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */
157 in_port_t sin6_port; /* Transport layer port */
158 uint32_t sin6_flowinfo; /* IP6 flow information */
159 struct in6_addr sin6_addr; /* IP6 address */
160 uint32_t sin6_scope_id; /* scope zone index */
161 };
162
163 /*
164 * Local definition for masks
165 */
166 #ifdef _KERNEL /* XXX nonstandard */
167 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
168 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
169 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
170 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
171 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
172 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
173 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
174 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
175 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
176 #endif
177
178 #ifdef _KERNEL
179 extern const struct sockaddr_in6 sa6_any;
180
181 extern const struct in6_addr in6mask0;
182 extern const struct in6_addr in6mask32;
183 extern const struct in6_addr in6mask64;
184 extern const struct in6_addr in6mask96;
185 extern const struct in6_addr in6mask128;
186 #endif /* _KERNEL */
187
188 /*
189 * Macros started with IPV6_ADDR is KAME local
190 */
191 #ifdef _KERNEL /* XXX nonstandard */
192 #if BYTE_ORDER == BIG_ENDIAN
193 #define IPV6_ADDR_INT32_ONE 1
194 #define IPV6_ADDR_INT32_TWO 2
195 #define IPV6_ADDR_INT32_MNL 0xff010000
196 #define IPV6_ADDR_INT32_MLL 0xff020000
197 #define IPV6_ADDR_INT32_SMP 0x0000ffff
198 #define IPV6_ADDR_INT16_ULL 0xfe80
199 #define IPV6_ADDR_INT16_USL 0xfec0
200 #define IPV6_ADDR_INT16_MLL 0xff02
201 #elif BYTE_ORDER == LITTLE_ENDIAN
202 #define IPV6_ADDR_INT32_ONE 0x01000000
203 #define IPV6_ADDR_INT32_TWO 0x02000000
204 #define IPV6_ADDR_INT32_MNL 0x000001ff
205 #define IPV6_ADDR_INT32_MLL 0x000002ff
206 #define IPV6_ADDR_INT32_SMP 0xffff0000
207 #define IPV6_ADDR_INT16_ULL 0x80fe
208 #define IPV6_ADDR_INT16_USL 0xc0fe
209 #define IPV6_ADDR_INT16_MLL 0x02ff
210 #endif
211 #endif
212
213 /*
214 * Definition of some useful macros to handle IP6 addresses
215 */
216 #define IN6ADDR_ANY_INIT \
217 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
218 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
219 #define IN6ADDR_LOOPBACK_INIT \
220 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
221 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
222 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \
223 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
224 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
225 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
226 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
227 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
228 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
229 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
230 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
231
232 extern const struct in6_addr in6addr_any;
233 extern const struct in6_addr in6addr_loopback;
234 extern const struct in6_addr in6addr_nodelocal_allnodes;
235 extern const struct in6_addr in6addr_linklocal_allnodes;
236 extern const struct in6_addr in6addr_linklocal_allrouters;
237
238 /*
239 * Equality
240 * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
241 * does not supply memcmp(). For userland memcmp() is preferred as it is
242 * in ANSI standard.
243 */
244 #ifdef _KERNEL
245 #define IN6_ARE_ADDR_EQUAL(a, b) \
246 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
247 #else
248 #define IN6_ARE_ADDR_EQUAL(a, b) \
249 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
250 #endif
251
252 /*
253 * Unspecified
254 */
255 #define IN6_IS_ADDR_UNSPECIFIED(a) \
256 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
257 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
258 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
259 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
260
261 /*
262 * Loopback
263 */
264 #define IN6_IS_ADDR_LOOPBACK(a) \
265 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
266 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
267 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
268 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
269
270 /*
271 * IPv4 compatible
272 */
273 #define IN6_IS_ADDR_V4COMPAT(a) \
274 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
275 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
276 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
277 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
278 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
279
280 /*
281 * Mapped
282 */
283 #define IN6_IS_ADDR_V4MAPPED(a) \
284 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
285 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
286 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
287
288 /*
289 * KAME Scope Values
290 */
291
292 #ifdef _KERNEL /* XXX nonstandard */
293 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01
294 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
295 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
296 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05
297 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
298 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e
299 #else
300 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
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
305 #endif
306
307 /*
308 * Unicast Scope
309 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
310 */
311 #define IN6_IS_ADDR_LINKLOCAL(a) \
312 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
313 #define IN6_IS_ADDR_SITELOCAL(a) \
314 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
315
316 /*
317 * Multicast
318 */
319 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
320
321 #ifdef _KERNEL /* XXX nonstandard */
322 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
323 #else
324 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
325 #endif
326
327 /*
328 * Multicast Scope
329 */
330 #ifdef _KERNEL /* refers nonstandard items */
331 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
332 (IN6_IS_ADDR_MULTICAST(a) && \
333 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
334 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
335 (IN6_IS_ADDR_MULTICAST(a) && \
336 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
337 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
338 (IN6_IS_ADDR_MULTICAST(a) && \
339 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
340 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
341 (IN6_IS_ADDR_MULTICAST(a) && \
342 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
343 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
344 (IN6_IS_ADDR_MULTICAST(a) && \
345 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
346 #define IN6_IS_ADDR_MC_GLOBAL(a) \
347 (IN6_IS_ADDR_MULTICAST(a) && \
348 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
349 #else
350 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
351 (IN6_IS_ADDR_MULTICAST(a) && \
352 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
353 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
354 (IN6_IS_ADDR_MULTICAST(a) && \
355 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
356 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
357 (IN6_IS_ADDR_MULTICAST(a) && \
358 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
359 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
360 (IN6_IS_ADDR_MULTICAST(a) && \
361 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
362 #define IN6_IS_ADDR_MC_GLOBAL(a) \
363 (IN6_IS_ADDR_MULTICAST(a) && \
364 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
365 #endif
366
367 #ifdef _KERNEL /* nonstandard */
368 /*
369 * KAME Scope
370 */
371 #define IN6_IS_SCOPE_LINKLOCAL(a) \
372 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
373 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
374
375 #define IN6_IS_SCOPE_EMBEDDABLE(__a) \
376 (IN6_IS_SCOPE_LINKLOCAL(__a) || IN6_IS_ADDR_MC_INTFACELOCAL(__a))
377
378 #define IFA6_IS_DEPRECATED(a) \
379 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \
380 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \
381 (a)->ia6_lifetime.ia6t_pltime)
382 #define IFA6_IS_INVALID(a) \
383 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \
384 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \
385 (a)->ia6_lifetime.ia6t_vltime)
386 #endif
387
388 /*
389 * IP6 route structure
390 */
391 #if defined(_NETBSD_SOURCE)
392 struct route_in6 {
393 struct rtentry *ro_rt;
394 struct sockaddr_in6 ro_dst;
395 };
396 #endif
397
398 /*
399 * Options for use with [gs]etsockopt at the IPV6 level.
400 * First word of comment is data type; bool is stored in int.
401 */
402 /* no hdrincl */
403 #if 0
404 /* These are deprecated non-standard options which are no longer supported. */
405 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
406 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
407 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
408 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
409 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
410 #endif
411 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
412 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
413 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */
414 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */
415 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */
416 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
417 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
418 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
419 #if defined(_NETBSD_SOURCE)
420 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
421 #endif
422 /* RFC2292 options */
423 #ifdef _KERNEL
424 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */
425 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
426 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
427 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
428 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */
429 #define IPV6_2292RTHDR 24 /* bool; routing header */
430 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
431 #endif
432 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
433 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */
434
435 #if 1 /* IPSEC */
436 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
437 #endif
438 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */
439
440 /* new socket options introduced in RFC3542 */
441 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */
442
443 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */
444 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */
445 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */
446 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */
447 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */
448 #ifdef _KERNEL
449 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
450 #endif
451 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */
452 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */
453 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt),
454 4 bytes int; MTU notification (cmsg) */
455
456 /* more new socket options introduced in RFC3542 */
457 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */
458 #define IPV6_HOPLIMIT 47 /* int; send hop limit */
459 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */
460 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
461 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
462 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */
463
464 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */
465 #ifdef _KERNEL
466 #define IPV6_OTCLASS 58 /* u_int8_t; send traffic class value */
467 #endif
468
469 #define IPV6_TCLASS 61 /* int; send traffic class value */
470 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
471 /* to define items, should talk with KAME guys first, for *BSD compatibility */
472
473 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
474 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
475 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
476
477 /*
478 * Defaults and limits for options
479 */
480 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
481 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
482
483 /*
484 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
485 */
486 struct ipv6_mreq {
487 struct in6_addr ipv6mr_multiaddr;
488 unsigned int ipv6mr_interface;
489 };
490
491 /*
492 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
493 */
494 struct in6_pktinfo {
495 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
496 unsigned int ipi6_ifindex; /* send/recv interface index */
497 };
498
499 /*
500 * Control structure for IPV6_RECVPATHMTU socket option.
501 */
502 struct ip6_mtuinfo {
503 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */
504 uint32_t ip6m_mtu;
505 };
506
507 /*
508 * Argument for IPV6_PORTRANGE:
509 * - which range to search when port is unspecified at bind() or connect()
510 */
511 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */
512 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
513 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
514
515 #if defined(_NETBSD_SOURCE)
516 /*
517 * Definitions for inet6 sysctl operations.
518 *
519 * Third level is protocol number.
520 * Fourth level is desired variable within that protocol.
521 */
522 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
523
524 #define CTL_IPV6PROTO_NAMES { \
525 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
526 { 0, 0 }, \
527 { "tcp6", CTLTYPE_NODE }, \
528 { 0, 0 }, \
529 { 0, 0 }, \
530 { 0, 0 }, \
531 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
532 { 0, 0 }, \
533 { 0, 0 }, \
534 { "udp6", CTLTYPE_NODE }, \
535 { 0, 0 }, \
536 { 0, 0 }, \
537 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
538 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
539 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
540 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
541 { 0, 0 }, \
542 { "ip6", CTLTYPE_NODE }, \
543 { 0, 0 }, \
544 { 0, 0 }, \
545 { 0, 0 }, \
546 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
547 { 0, 0 }, \
548 { "ipsec6", CTLTYPE_NODE }, \
549 { 0, 0 }, \
550 { 0, 0 }, \
551 { 0, 0 }, \
552 { 0, 0 }, \
553 { 0, 0 }, \
554 { 0, 0 }, \
555 { "icmp6", CTLTYPE_NODE }, \
556 { 0, 0 }, \
557 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
558 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
559 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
560 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
561 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
562 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
563 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
564 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
565 { 0, 0 }, \
566 { 0, 0 }, \
567 { 0, 0 }, \
568 { "pim6", CTLTYPE_NODE }, \
569 }
570
571 /*
572 * Names for IP sysctl objects
573 */
574 #define IPV6CTL_FORWARDING 1 /* act as router */
575 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
576 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
577 #ifdef notyet
578 #define IPV6CTL_DEFMTU 4 /* default MTU */
579 #endif
580 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
581 #define IPV6CTL_STATS 6 /* stats */
582 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
583 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
584 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
585 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
586 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
587 #define IPV6CTL_ACCEPT_RTADV 12
588 #define IPV6CTL_KEEPFAITH 13
589 #define IPV6CTL_LOG_INTERVAL 14
590 #define IPV6CTL_HDRNESTLIMIT 15
591 #define IPV6CTL_DAD_COUNT 16
592 #define IPV6CTL_AUTO_FLOWLABEL 17
593 #define IPV6CTL_DEFMCASTHLIM 18
594 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
595 #define IPV6CTL_KAME_VERSION 20
596 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
597 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
598 /* 23: reserved */
599 #define IPV6CTL_V6ONLY 24
600 /* 25 to 27: reserved */
601 #define IPV6CTL_ANONPORTMIN 28 /* minimum ephemeral port */
602 #define IPV6CTL_ANONPORTMAX 29 /* maximum ephemeral port */
603 #define IPV6CTL_LOWPORTMIN 30 /* minimum reserved port */
604 #define IPV6CTL_LOWPORTMAX 31 /* maximum reserved port */
605 /* 32 to 38: reserved */
606 #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */
607 /* 40: reserved */
608 #define IPV6CTL_MAXFRAGS 41 /* max fragments */
609 #define IPV6CTL_IFQ 42 /* ip6intrq node */
610 /* New entries should be added here from current IPV6CTL_MAXID value. */
611 /* to define items, should talk with KAME guys first, for *BSD compatibility */
612 #define IPV6CTL_MAXID 43
613
614 #define IPV6CTL_NAMES { \
615 { 0, 0 }, \
616 { "forwarding", CTLTYPE_INT }, \
617 { "redirect", CTLTYPE_INT }, \
618 { "hlim", CTLTYPE_INT }, \
619 { "mtu", CTLTYPE_INT }, \
620 { "forwsrcrt", CTLTYPE_INT }, \
621 { "stats", CTLTYPE_STRUCT }, \
622 { 0, 0 }, \
623 { "mrtproto", CTLTYPE_INT }, \
624 { "maxfragpackets", CTLTYPE_INT }, \
625 { "sourcecheck", CTLTYPE_INT }, \
626 { "sourcecheck_logint", CTLTYPE_INT }, \
627 { "accept_rtadv", CTLTYPE_INT }, \
628 { "keepfaith", CTLTYPE_INT }, \
629 { "log_interval", CTLTYPE_INT }, \
630 { "hdrnestlimit", CTLTYPE_INT }, \
631 { "dad_count", CTLTYPE_INT }, \
632 { "auto_flowlabel", CTLTYPE_INT }, \
633 { "defmcasthlim", CTLTYPE_INT }, \
634 { "gifhlim", CTLTYPE_INT }, \
635 { "kame_version", CTLTYPE_STRING }, \
636 { "use_deprecated", CTLTYPE_INT }, \
637 { "rr_prune", CTLTYPE_INT }, \
638 { 0, 0 }, \
639 { "v6only", CTLTYPE_INT }, \
640 { 0, 0 }, \
641 { 0, 0 }, \
642 { 0, 0 }, \
643 { "anonportmin", CTLTYPE_INT }, \
644 { "anonportmax", CTLTYPE_INT }, \
645 { "lowportmin", CTLTYPE_INT }, \
646 { "lowportmax", CTLTYPE_INT }, \
647 { 0, 0 }, \
648 { 0, 0 }, \
649 { 0, 0 }, \
650 { 0, 0 }, \
651 { 0, 0 }, \
652 { 0, 0 }, \
653 { 0, 0 }, \
654 { 0, 0 }, \
655 { 0, 0 }, \
656 { "maxfrags", CTLTYPE_INT }, \
657 { "ifq", CTLTYPE_NODE }, \
658 }
659
660 #endif /* _NETBSD_SOURCE */
661
662 #ifdef _KERNEL
663 struct cmsghdr;
664
665 /*
666 * in6_cksum_phdr:
667 *
668 * Compute significant parts of the IPv6 checksum pseudo-header
669 * for use in a delayed TCP/UDP checksum calculation.
670 *
671 * Args:
672 *
673 * src Source IPv6 address
674 * dst Destination IPv6 address
675 * len htonl(proto-hdr-len)
676 * nxt htonl(next-proto-number)
677 *
678 * NOTE: We expect the src and dst addresses to be 16-bit
679 * aligned!
680 */
681 static __inline u_int16_t __attribute__((__unused__))
in6_cksum_phdr(const struct in6_addr * src,const struct in6_addr * dst,u_int32_t len,u_int32_t nxt)682 in6_cksum_phdr(const struct in6_addr *src, const struct in6_addr *dst,
683 u_int32_t len, u_int32_t nxt)
684 {
685 u_int32_t sum = 0;
686 const u_int16_t *w;
687
688 /*LINTED*/
689 w = (const u_int16_t *) src;
690 sum += w[0];
691 if (!IN6_IS_SCOPE_LINKLOCAL(src))
692 sum += w[1];
693 sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5];
694 sum += w[6]; sum += w[7];
695
696 /*LINTED*/
697 w = (const u_int16_t *) dst;
698 sum += w[0];
699 if (!IN6_IS_SCOPE_LINKLOCAL(dst))
700 sum += w[1];
701 sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5];
702 sum += w[6]; sum += w[7];
703
704 sum += (u_int16_t)(len >> 16) + (u_int16_t)(len /*& 0xffff*/);
705
706 sum += (u_int16_t)(nxt >> 16) + (u_int16_t)(nxt /*& 0xffff*/);
707
708 sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/);
709
710 if (sum > 0xffff)
711 sum -= 0xffff;
712
713 return (sum);
714 }
715
716 struct mbuf;
717 struct ifnet;
718 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t));
719 void in6_delayed_cksum __P((struct mbuf *));
720 int in6_localaddr __P((struct in6_addr *));
721 int in6_addrscope __P((struct in6_addr *));
722 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *));
723 extern void in6_if_up __P((struct ifnet *));
724 #ifndef __FreeBSD__
725 extern int in6_src_sysctl __P((void *, size_t *, void *, size_t));
726 #endif
727 extern void addrsel_policy_init __P((void));
728 extern u_char ip6_protox[];
729
730 #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
731 #define sin6tosa(sin6) ((struct sockaddr *)(sin6))
732 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
733 #endif /* _KERNEL */
734
735 #if defined(_NETBSD_SOURCE)
736
737 #include <machine/ansi.h>
738
739 #ifdef _EFI_SIZE_T_
740 typedef _EFI_SIZE_T_ size_t;
741 #define _SIZE_T
742 #undef _EFI_SIZE_T_
743 #undef _BSD_SIZE_T_
744 #endif
745
746 #include <sys/EfiCdefs.h>
747
748 __BEGIN_DECLS
749 struct cmsghdr;
750
751 extern int inet6_option_space (int);
752 extern int inet6_option_init (void *, struct cmsghdr **, int);
753 extern int inet6_option_append (struct cmsghdr *, const uint8_t *,
754 int, int);
755 extern uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int);
756 extern int inet6_option_next (const struct cmsghdr *, uint8_t **);
757 extern int inet6_option_find (const struct cmsghdr *, uint8_t **, int);
758
759 extern size_t inet6_rthdr_space (int, int);
760 extern struct cmsghdr *inet6_rthdr_init (void *, int);
761 extern int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *,
762 unsigned int);
763 extern int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int);
764 #if 0 /* not implemented yet */
765 extern int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *);
766 #endif
767 extern int inet6_rthdr_segments (const struct cmsghdr *);
768 extern struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int);
769 extern int inet6_rthdr_getflags (const struct cmsghdr *, int);
770
771 extern int inet6_opt_init (void *, socklen_t);
772 extern int inet6_opt_append (void *, socklen_t, int, uint8_t,
773 socklen_t, uint8_t, void **);
774 extern int inet6_opt_finish (void *, socklen_t, int);
775 extern int inet6_opt_set_val (void *, int, void *, socklen_t);
776
777 extern int inet6_opt_next (void *, socklen_t, int, uint8_t *,
778 socklen_t *, void **);
779 extern int inet6_opt_find (void *, socklen_t, int, uint8_t,
780 socklen_t *, void **);
781 extern int inet6_opt_get_val (void *, int, void *, socklen_t);
782 extern socklen_t inet6_rth_space (int, int);
783 extern void *inet6_rth_init (void *, socklen_t, int, int);
784 extern int inet6_rth_add (void *, const struct in6_addr *);
785 extern int inet6_rth_reverse (const void *, void *);
786 extern int inet6_rth_segments (const void *);
787 extern struct in6_addr *inet6_rth_getaddr (const void *, int);
788 __END_DECLS
789 #endif /* _NETBSD_SOURCE */
790
791 #endif /* !_NETINET6_IN6_H_ */
792