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1 27 unneback 
//==========================================================================
2 
//
3 
//      include/netinet6_in6.h
4 
//
5 
//
6 
//
7 
//==========================================================================
8 
//####BSDCOPYRIGHTBEGIN####
9 
//
10 
// -------------------------------------------
11 
//
12 
// Portions of this software may have been derived from OpenBSD or other sources,
13 
// and are covered by the appropriate copyright disclaimers included herein.
14 
//
15 
// -------------------------------------------
16 
//
17 
//####BSDCOPYRIGHTEND####
18 
//==========================================================================
19 
//#####DESCRIPTIONBEGIN####
20 
//
21 
// Author(s):    gthomas
22 
// Contributors: gthomas
23 
// Date:         2000-01-10
24 
// Purpose:
25 
// Description:
26 
//
27 
//
28 
//####DESCRIPTIONEND####
29 
//
30 
//==========================================================================
31 
 
32 
 
33 
/* $OpenBSD: in6.h,v 1.9 1999/12/10 08:53:17 angelos Exp $ */
34 
/*
35 
 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
36 
 * 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. Neither the name of the project nor the names of its contributors
47 
 *    may be used to endorse or promote products derived from this software
48 
 *    without specific prior written permission.
49 
 *
50 
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
51 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
54 
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60 
 * SUCH DAMAGE.
61 
 */
62 
 
63 
/*
64 
 * Copyright (c) 1982, 1986, 1990, 1993
65 
 *      The Regents of the University of California.  All rights reserved.
66 
 *
67 
 * Redistribution and use in source and binary forms, with or without
68 
 * modification, are permitted provided that the following conditions
69 
 * are met:
70 
 * 1. Redistributions of source code must retain the above copyright
71 
 *    notice, this list of conditions and the following disclaimer.
72 
 * 2. Redistributions in binary form must reproduce the above copyright
73 
 *    notice, this list of conditions and the following disclaimer in the
74 
 *    documentation and/or other materials provided with the distribution.
75 
 * 3. All advertising materials mentioning features or use of this software
76 
 *    must display the following acknowledgement:
77 
 *      This product includes software developed by the University of
78 
 *      California, Berkeley and its contributors.
79 
 * 4. Neither the name of the University nor the names of its contributors
80 
 *    may be used to endorse or promote products derived from this software
81 
 *    without specific prior written permission.
82 
 *
83 
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
84 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
85 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
86 
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
87 
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
88 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
89 
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
90 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
91 
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
92 
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
93 
 * SUCH DAMAGE.
94 
 *
95 
 *      @(#)in.h        8.3 (Berkeley) 1/3/94
96 
 */
97 
 
98 
#ifndef _NETINET6_IN6_H_
99 
#define _NETINET6_IN6_H_
100 
 
101 
#if !defined(_XOPEN_SOURCE)
102 
#include <sys/queue.h>
103 
#endif
104 
 
105 
/*
106 
 * Identification of the network protocol stack
107 
 */
108 
#define __KAME__
109 
#define __KAME_VERSION          "19991208/OpenBSD-current"
110 
 
111 
/*
112 
 * Local port number conventions:
113 
 *
114 
 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
115 
 * unless a kernel is compiled with IPNOPRIVPORTS defined.
116 
 *
117 
 * When a user does a bind(2) or connect(2) with a port number of zero,
118 
 * a non-conflicting local port address is chosen.
119 
 *
120 
 * The default range is IPPORT_ANONMIX to IPPORT_ANONMAX, although
121 
 * that is settable by sysctl(3); net.inet.ip.anonportmin and
122 
 * net.inet.ip.anonportmax respectively.
123 
 *
124 
 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
125 
 * default assignment range.
126 
 *
127 
 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
128 
 *
129 
 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
130 
 * and exists only for FreeBSD compatibility purposes.
131 
 *
132 
 * The value IP_PORTRANGE_LOW changes the range to the "low" are
133 
 * that is (by convention) restricted to privileged processes.
134 
 * This convention is based on "vouchsafe" principles only.
135 
 * It is only secure if you trust the remote host to restrict these ports.
136 
 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
137 
 */
138 
 
139 
#define IPV6PORT_RESERVED       1024
140 
#define IPV6PORT_ANONMIN        49152
141 
#define IPV6PORT_ANONMAX        65535
142 
#define IPV6PORT_RESERVEDMIN    600
143 
#define IPV6PORT_RESERVEDMAX    (IPV6PORT_RESERVED-1)
144 
 
145 
/*
146 
 * IPv6 address
147 
 */
148 
struct in6_addr {
149 
        union {
150 
                u_int8_t   __u6_addr8[16];
151 
                u_int16_t  __u6_addr16[8];
152 
                u_int32_t  __u6_addr32[4];
153 
        } __u6_addr;                    /* 128-bit IP6 address */
154 
};
155 
 
156 
#define s6_addr   __u6_addr.__u6_addr8
157 
#ifdef _KERNEL  /*XXX nonstandard*/
158 
#define s6_addr8  __u6_addr.__u6_addr8
159 
#define s6_addr16 __u6_addr.__u6_addr16
160 
#define s6_addr32 __u6_addr.__u6_addr32
161 
#endif
162 
 
163 
#define INET6_ADDRSTRLEN        46
164 
 
165 
/*
166 
 * Socket address for IPv6
167 
 */
168 
#if !defined(_XOPEN_SOURCE)
169 
#define SIN6_LEN
170 
#endif
171 
struct sockaddr_in6 {
172 
        u_char          sin6_len;       /* length of this struct(sa_family_t)*/
173 
        u_char          sin6_family;    /* AF_INET6 (sa_family_t) */
174 
        u_int16_t       sin6_port;      /* Transport layer port # (in_port_t)*/
175 
        u_int32_t       sin6_flowinfo;  /* IP6 flow information */
176 
        struct in6_addr sin6_addr;      /* IP6 address */
177 
        u_int32_t       sin6_scope_id;  /* intface scope id */
178 
};
179 
 
180 
/*
181 
 * Local definition for masks
182 
 */
183 
#ifdef _KERNEL  /*XXX nonstandard*/
184 
#define IN6MASK0        {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
185 
#define IN6MASK32       {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
186 
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
187 
#define IN6MASK64       {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
188 
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
189 
#define IN6MASK96       {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
190 
                            0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
191 
#define IN6MASK128      {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
192 
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
193 
#endif
194 
 
195 
#ifdef _KERNEL
196 
extern const struct in6_addr in6mask0;
197 
extern const struct in6_addr in6mask32;
198 
extern const struct in6_addr in6mask64;
199 
extern const struct in6_addr in6mask96;
200 
extern const struct in6_addr in6mask128;
201 
#endif /* _KERNEL */
202 
 
203 
/*
204 
 * Macros started with IPV6_ADDR is KAME local
205 
 */
206 
#ifdef _KERNEL  /*XXX nonstandard*/
207 
#if BYTE_ORDER == BIG_ENDIAN
208 
#define IPV6_ADDR_INT32_ONE     1
209 
#define IPV6_ADDR_INT32_TWO     2
210 
#define IPV6_ADDR_INT32_MNL     0xff010000
211 
#define IPV6_ADDR_INT32_MLL     0xff020000
212 
#define IPV6_ADDR_INT32_SMP     0x0000ffff
213 
#define IPV6_ADDR_INT16_ULL     0xfe80
214 
#define IPV6_ADDR_INT16_USL     0xfec0
215 
#define IPV6_ADDR_INT16_MLL     0xff02
216 
#elif BYTE_ORDER == LITTLE_ENDIAN
217 
#define IPV6_ADDR_INT32_ONE     0x01000000
218 
#define IPV6_ADDR_INT32_TWO     0x02000000
219 
#define IPV6_ADDR_INT32_MNL     0x000001ff
220 
#define IPV6_ADDR_INT32_MLL     0x000002ff
221 
#define IPV6_ADDR_INT32_SMP     0xffff0000
222 
#define IPV6_ADDR_INT16_ULL     0x80fe
223 
#define IPV6_ADDR_INT16_USL     0xc0fe
224 
#define IPV6_ADDR_INT16_MLL     0x02ff
225 
#endif
226 
#endif
227 
 
228 
/*
229 
 * Definition of some useful macros to handle IP6 addresses
230 
 */
231 
#define IN6ADDR_ANY_INIT \
232 
        {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
233 
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
234 
#define IN6ADDR_LOOPBACK_INIT \
235 
        {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
236 
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
237 
#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
238 
        {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
239 
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
240 
#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
241 
        {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
242 
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
243 
#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
244 
        {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
245 
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
246 
 
247 
extern const struct in6_addr in6addr_any;
248 
extern const struct in6_addr in6addr_loopback;
249 
extern const struct in6_addr in6addr_nodelocal_allnodes;
250 
extern const struct in6_addr in6addr_linklocal_allnodes;
251 
extern const struct in6_addr in6addr_linklocal_allrouters;
252 
 
253 
/*
254 
 * Equality
255 
 * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
256 
 * does not supply memcmp().  For userland memcmp() is preferred as it is
257 
 * in ANSI standard.
258 
 */
259 
#ifdef _KERNEL
260 
#define IN6_ARE_ADDR_EQUAL(a, b)                        \
261 
        (bcmp((a), (b), sizeof(struct in6_addr)) == 0)
262 
#else
263 
#define IN6_ARE_ADDR_EQUAL(a, b)                        \
264 
        (memcmp((a), (b), sizeof(struct in6_addr)) == 0)
265 
#endif
266 
 
267 
/*
268 
 * Unspecified
269 
 */
270 
#define IN6_IS_ADDR_UNSPECIFIED(a)      \
271 
        ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) &&       \
272 
         (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) &&      \
273 
         (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) &&      \
274 
         (*(u_int32_t *)(&(a)->s6_addr[12]) == 0))
275 
 
276 
/*
277 
 * Loopback
278 
 */
279 
#define IN6_IS_ADDR_LOOPBACK(a)         \
280 
        ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) &&       \
281 
         (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) &&      \
282 
         (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) &&      \
283 
         (*(u_int32_t *)(&(a)->s6_addr[12]) == ntohl(1)))
284 
 
285 
/*
286 
 * IPv4 compatible
287 
 */
288 
#define IN6_IS_ADDR_V4COMPAT(a)         \
289 
        ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) &&       \
290 
         (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) &&      \
291 
         (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) &&      \
292 
         (*(u_int32_t *)(&(a)->s6_addr[12]) != 0) &&     \
293 
         (*(u_int32_t *)(&(a)->s6_addr[12]) != ntohl(1)))
294 
 
295 
/*
296 
 * Mapped
297 
 */
298 
#define IN6_IS_ADDR_V4MAPPED(a)               \
299 
        ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) &&       \
300 
         (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) &&      \
301 
         (*(u_int32_t *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
302 
 
303 
/*
304 
 * KAME Scope Values
305 
 */
306 
 
307 
#ifdef _KERNEL  /*XXX nonstandard*/
308 
#define IPV6_ADDR_SCOPE_NODELOCAL       0x01
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
313 
#else
314 
#define __IPV6_ADDR_SCOPE_NODELOCAL     0x01
315 
#define __IPV6_ADDR_SCOPE_LINKLOCAL     0x02
316 
#define __IPV6_ADDR_SCOPE_SITELOCAL     0x05
317 
#define __IPV6_ADDR_SCOPE_ORGLOCAL      0x08    /* just used in this file */
318 
#define __IPV6_ADDR_SCOPE_GLOBAL        0x0e
319 
#endif
320 
 
321 
/*
322 
 * Unicast Scope
323 
 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
324 
 */
325 
#define IN6_IS_ADDR_LINKLOCAL(a)        \
326 
        (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
327 
#define IN6_IS_ADDR_SITELOCAL(a)        \
328 
        (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
329 
 
330 
/*
331 
 * Multicast
332 
 */
333 
#define IN6_IS_ADDR_MULTICAST(a)        ((a)->s6_addr[0] == 0xff)
334 
 
335 
#ifdef _KERNEL  /*XXX nonstandard*/
336 
#define IPV6_ADDR_MC_SCOPE(a)           ((a)->s6_addr[1] & 0x0f)
337 
#else
338 
#define __IPV6_ADDR_MC_SCOPE(a)         ((a)->s6_addr[1] & 0x0f)
339 
#endif
340 
 
341 
/*
342 
 * Multicast Scope
343 
 */
344 
#ifdef _KERNEL  /*refers nonstandard items */
345 
#define IN6_IS_ADDR_MC_NODELOCAL(a)     \
346 
        (IN6_IS_ADDR_MULTICAST(a) &&    \
347 
         (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
348 
#define IN6_IS_ADDR_MC_LINKLOCAL(a)     \
349 
        (IN6_IS_ADDR_MULTICAST(a) &&    \
350 
         (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
351 
#define IN6_IS_ADDR_MC_SITELOCAL(a)     \
352 
        (IN6_IS_ADDR_MULTICAST(a) &&    \
353 
         (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
354 
#define IN6_IS_ADDR_MC_ORGLOCAL(a)      \
355 
        (IN6_IS_ADDR_MULTICAST(a) &&    \
356 
         (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
357 
#define IN6_IS_ADDR_MC_GLOBAL(a)        \
358 
        (IN6_IS_ADDR_MULTICAST(a) &&    \
359 
         (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
360 
#else
361 
#define IN6_IS_ADDR_MC_NODELOCAL(a)     \
362 
        (IN6_IS_ADDR_MULTICAST(a) &&    \
363 
         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
364 
#define IN6_IS_ADDR_MC_LINKLOCAL(a)     \
365 
        (IN6_IS_ADDR_MULTICAST(a) &&    \
366 
         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
367 
#define IN6_IS_ADDR_MC_SITELOCAL(a)     \
368 
        (IN6_IS_ADDR_MULTICAST(a) &&    \
369 
         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
370 
#define IN6_IS_ADDR_MC_ORGLOCAL(a)      \
371 
        (IN6_IS_ADDR_MULTICAST(a) &&    \
372 
         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
373 
#define IN6_IS_ADDR_MC_GLOBAL(a)        \
374 
        (IN6_IS_ADDR_MULTICAST(a) &&    \
375 
         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
376 
#endif
377 
 
378 
/*
379 
 * Wildcard Socket
380 
 */
381 
#if 0   /*pre-RFC2553*/
382 
#define IN6_IS_ADDR_ANY(a)      IN6_IS_ADDR_UNSPECIFIED(a)
383 
#endif
384 
 
385 
/*
386 
 * KAME Scope
387 
 */
388 
#ifdef _KERNEL  /*nonstandard*/
389 
#define IN6_IS_SCOPE_LINKLOCAL(a)       \
390 
        ((IN6_IS_ADDR_LINKLOCAL(a)) ||  \
391 
         (IN6_IS_ADDR_MC_LINKLOCAL(a)))
392 
#endif
393 
 
394 
/*
395 
 * IP6 route structure
396 
 */
397 
#if !defined(_XOPEN_SOURCE)
398 
struct route_in6 {
399 
        struct  rtentry *ro_rt;
400 
        struct  sockaddr_in6 ro_dst;
401 
};
402 
#endif
403 
 
404 
/*
405 
 * Options for use with [gs]etsockopt at the IPV6 level.
406 
 * First word of comment is data type; bool is stored in int.
407 
 */
408 
#define IPV6_OPTIONS            1  /* buf/ip6_opts; set/get IP6 options */
409 
/* no hdrincl */
410 
#define IPV6_SOCKOPT_RESERVED1  3  /* reserved for future use */
411 
#define IPV6_UNICAST_HOPS       4  /* int; IP6 hops */
412 
#define IPV6_RECVOPTS           5  /* bool; receive all IP6 opts w/dgram */
413 
#define IPV6_RECVRETOPTS        6  /* bool; receive IP6 opts for response */
414 
#define IPV6_RECVDSTADDR        7  /* bool; receive IP6 dst addr w/dgram */
415 
#define IPV6_RETOPTS            8  /* ip6_opts; set/get IP6 options */
416 
#define IPV6_MULTICAST_IF       9  /* u_char; set/get IP6 multicast i/f  */
417 
#define IPV6_MULTICAST_HOPS     10 /* u_char; set/get IP6 multicast hops */
418 
#define IPV6_MULTICAST_LOOP     11 /* u_char; set/get IP6 multicast loopback */
419 
#define IPV6_JOIN_GROUP         12 /* ip6_mreq; join a group membership */
420 
#define IPV6_LEAVE_GROUP        13 /* ip6_mreq; leave a group membership */
421 
#define IPV6_PORTRANGE          14 /* int; range to choose for unspec port */
422 
#define ICMP6_FILTER            18 /* icmp6_filter; icmp6 filter */
423 
#define IPV6_PKTINFO            19 /* bool; send/rcv if, src/dst addr */
424 
#define IPV6_HOPLIMIT           20 /* bool; hop limit */
425 
#define IPV6_NEXTHOP            21 /* bool; next hop addr */
426 
#define IPV6_HOPOPTS            22 /* bool; hop-by-hop option */
427 
#define IPV6_DSTOPTS            23 /* bool; destination option */
428 
#define IPV6_RTHDR              24 /* bool; routing header */
429 
#define IPV6_PKTOPTIONS         25 /* buf/cmsghdr; set/get IPv6 options */
430 
#define IPV6_CHECKSUM           26 /* int; checksum offset for raw socket */
431 
#define IPV6_BINDV6ONLY         27 /* bool; only bind INET6 at null bind */
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 
 
446 
#define IPV6_RTHDR_LOOSE     0 /* this hop need not be a neighbor. XXX old spec */
447 
#define IPV6_RTHDR_STRICT    1 /* this hop must be a neighbor. XXX old spec */
448 
#define IPV6_RTHDR_TYPE_0    0 /* IPv6 routing header type 0 */
449 
 
450 
/*
451 
 * Defaults and limits for options
452 
 */
453 
#define IPV6_DEFAULT_MULTICAST_HOPS 1   /* normally limit m'casts to 1 hop  */
454 
#define IPV6_DEFAULT_MULTICAST_LOOP 1   /* normally hear sends if a member  */
455 
 
456 
/*
457 
 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
458 
 */
459 
struct ipv6_mreq {
460 
        struct in6_addr ipv6mr_multiaddr;
461 
        u_int           ipv6mr_interface;
462 
};
463 
 
464 
/*
465 
 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
466 
 */
467 
struct in6_pktinfo {
468 
        struct in6_addr ipi6_addr;      /* src/dst IPv6 address */
469 
        u_int ipi6_ifindex;             /* send/recv interface index */
470 
};
471 
 
472 
/*
473 
 * Argument for IPV6_PORTRANGE:
474 
 * - which range to search when port is unspecified at bind() or connect()
475 
 */
476 
#define IPV6_PORTRANGE_DEFAULT  0        /* default range */
477 
#define IPV6_PORTRANGE_HIGH     1       /* "high" - request firewall bypass */
478 
#define IPV6_PORTRANGE_LOW      2       /* "low" - vouchsafe security */
479 
 
480 
#if !defined(_XOPEN_SOURCE)
481 
/*
482 
 * Definitions for inet6 sysctl operations.
483 
 *
484 
 * Third level is protocol number.
485 
 * Fourth level is desired variable within that protocol.
486 
 */
487 
#define IPV6PROTO_MAXID (IPPROTO_PIM + 1)       /* don't list to IPV6PROTO_MAX */
488 
 
489 
#define CTL_IPV6PROTO_NAMES { \
490 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
491 
        { 0, 0 }, \
492 
        { "tcp6", CTLTYPE_NODE }, \
493 
        { 0, 0 }, \
494 
        { 0, 0 }, \
495 
        { 0, 0 }, \
496 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
497 
        { 0, 0 }, \
498 
        { 0, 0 }, \
499 
        { "udp6", CTLTYPE_NODE }, \
500 
        { 0, 0 }, \
501 
        { 0, 0 }, \
502 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 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 }, \
507 
        { "ip6", CTLTYPE_NODE }, \
508 
        { 0, 0 }, \
509 
        { 0, 0 }, \
510 
        { 0, 0 }, \
511 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
512 
        { 0, 0 }, \
513 
        { "ipsec6", CTLTYPE_NODE }, \
514 
        { 0, 0 }, \
515 
        { 0, 0 }, \
516 
        { 0, 0 }, \
517 
        { 0, 0 }, \
518 
        { 0, 0 }, \
519 
        { 0, 0 }, \
520 
        { "icmp6", CTLTYPE_NODE }, \
521 
        { 0, 0 }, \
522 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
523 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
524 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
525 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
526 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
527 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
528 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
529 
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
530 
        { 0, 0 }, \
531 
        { 0, 0 }, \
532 
        { 0, 0 }, \
533 
        { "pim6", CTLTYPE_NODE }, \
534 
}
535 
 
536 
/*
537 
 * Names for IP sysctl objects
538 
 */
539 
#define IPV6CTL_FORWARDING      1       /* act as router */
540 
#define IPV6CTL_SENDREDIRECTS   2       /* may send redirects when forwarding*/
541 
#define IPV6CTL_DEFHLIM         3       /* default Hop-Limit */
542 
#ifdef notyet
543 
#define IPV6CTL_DEFMTU          4       /* default MTU */
544 
#endif
545 
#define IPV6CTL_FORWSRCRT       5       /* forward source-routed dgrams */
546 
#define IPV6CTL_STATS           6       /* stats */
547 
#define IPV6CTL_MRTSTATS        7       /* multicast forwarding stats */
548 
#define IPV6CTL_MRTPROTO        8       /* multicast routing protocol */
549 
#define IPV6CTL_MAXFRAGPACKETS  9       /* max packets reassembly queue */
550 
#define IPV6CTL_SOURCECHECK     10      /* verify source route and intf */
551 
#define IPV6CTL_SOURCECHECK_LOGINT 11   /* minimume logging interval */
552 
#define IPV6CTL_ACCEPT_RTADV    12
553 
#define IPV6CTL_KEEPFAITH       13
554 
#define IPV6CTL_LOG_INTERVAL    14
555 
#define IPV6CTL_HDRNESTLIMIT    15
556 
#define IPV6CTL_DAD_COUNT       16
557 
#define IPV6CTL_AUTO_FLOWLABEL  17
558 
#define IPV6CTL_DEFMCASTHLIM    18
559 
#define IPV6CTL_GIF_HLIM        19      /* default HLIM for gif encap packet */
560 
#define IPV6CTL_KAME_VERSION    20
561 
#define IPV6CTL_USE_DEPRECATED  21      /* use deprecated addr (RFC2462 5.5.4) */
562 
#define IPV6CTL_RR_PRUNE        22      /* walk timer for router renumbering */
563 
#ifdef MAPPED_ADDR_ENABLED
564 
#define IPV6CTL_MAPPED_ADDR     23
565 
#endif /* MAPPED_ADDR_ENABLED */
566 
/* New entries should be added here from current IPV6CTL_MAXID value. */
567 
#define IPV6CTL_MAXID           24
568 
 
569 
#ifdef MAPPED_ADDR_ENABLED
570 
#define IPV6CTL_NAMES_MAPPED_ADDR       "mapped_addr"
571 
#define IPV6CTL_TYPE_MAPPED_ADDR        CTLTYPE_INT
572 
#define IPV6CTL_VARS_MAPPED_ADDR        &ip6_mapped_addr_on
573 
#else  /* MAPPED_ADDR_ENABLED */
574 
#define IPV6CTL_NAMES_MAPPED_ADDR       0
575 
#define IPV6CTL_TYPE_MAPPED_ADDR        0
576 
#define IPV6CTL_VARS_MAPPED_ADDR        0
577 
#endif /* MAPPED_ADDR_ENABLED */
578 
 
579 
#define IPV6CTL_NAMES { \
580 
        { 0, 0 }, \
581 
        { "forwarding", CTLTYPE_INT }, \
582 
        { "redirect", CTLTYPE_INT }, \
583 
        { "hlim", CTLTYPE_INT }, \
584 
        { "mtu", CTLTYPE_INT }, \
585 
        { "forwsrcrt", CTLTYPE_INT }, \
586 
        { 0, 0 }, \
587 
        { 0, 0 }, \
588 
        { "mrtproto", CTLTYPE_INT }, \
589 
        { "maxfragpackets", CTLTYPE_INT }, \
590 
        { "sourcecheck", CTLTYPE_INT }, \
591 
        { "sourcecheck_logint", CTLTYPE_INT }, \
592 
        { "accept_rtadv", CTLTYPE_INT }, \
593 
        { "keepfaith", CTLTYPE_INT }, \
594 
        { "log_interval", CTLTYPE_INT }, \
595 
        { "hdrnestlimit", CTLTYPE_INT }, \
596 
        { "dad_count", CTLTYPE_INT }, \
597 
        { "auto_flowlabel", CTLTYPE_INT }, \
598 
        { "defmcasthlim", CTLTYPE_INT }, \
599 
        { "gifhlim", CTLTYPE_INT }, \
600 
        { "kame_version", CTLTYPE_STRING }, \
601 
        { "use_deprecated", CTLTYPE_INT }, \
602 
        { "rr_prune", CTLTYPE_INT }, \
603 
        { IPV6CTL_NAMES_MAPPED_ADDR, IPV6CTL_TYPE_MAPPED_ADDR }, \
604 
}
605 
 
606 
#define IPV6CTL_VARS { \
607 
        0, \
608 
        &ip6_forwarding, \
609 
        &ip6_sendredirects, \
610 
        &ip6_defhlim, \
611 
        0, \
612 
        &ip6_forward_srcrt, \
613 
        0, \
614 
        0, \
615 
        0, \
616 
        &ip6_maxfragpackets, \
617 
        &ip6_sourcecheck, \
618 
        &ip6_sourcecheck_interval, \
619 
        &ip6_accept_rtadv, \
620 
        &ip6_keepfaith, \
621 
        &ip6_log_interval, \
622 
        &ip6_hdrnestlimit, \
623 
        &ip6_dad_count, \
624 
        &ip6_auto_flowlabel, \
625 
        &ip6_defmcasthlim, \
626 
        &ip6_gif_hlim, \
627 
        0, \
628 
        &ip6_use_deprecated, \
629 
        &ip6_rr_prune, \
630 
        IPV6CTL_VARS_MAPPED_ADDR, \
631 
}
632 
#endif /* !_XOPEN_SOURCE */
633 
 
634 
#ifdef _KERNEL
635 
struct cmsghdr;
636 
struct mbuf;
637 
struct ifnet;
638 
 
639 
int     in6_canforward __P((struct in6_addr *, struct in6_addr *));
640 
int     in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t));
641 
int     in6_localaddr __P((struct in6_addr *));
642 
int     in6_addrscope __P((struct in6_addr *));
643 
struct  in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *));
644 
struct  in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *));
645 
extern void in6_if_up __P((struct ifnet *));
646 
#ifdef MAPPED_ADDR_ENABLED
647 
struct sockaddr;
648 
 
649 
void    in6_sin6_2_sin __P((struct sockaddr_in *sin,
650 
                            struct sockaddr_in6 *sin6));
651 
void    in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin,
652 
                                 struct sockaddr_in6 *sin6));
653 
void    in6_sin6_2_sin_in_sock __P((struct sockaddr *nam));
654 
void    in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam));
655 
#endif /* MAPPED_ADDR_ENABLED */
656 
 
657 
#define satosin6(sa)    ((struct sockaddr_in6 *)(sa))
658 
#define sin6tosa(sin6)  ((struct sockaddr *)(sin6))
659 
#define ifatoia6(ifa)   ((struct in6_ifaddr *)(ifa))
660 
#endif /* _KERNEL */
661 
 
662 
__BEGIN_DECLS
663 
struct cmsghdr;
664 
 
665 
extern int inet6_option_space(int);
666 
extern int inet6_option_init(void *, struct cmsghdr **, int);
667 
extern int inet6_option_append(struct cmsghdr *, const u_int8_t *, int, int);
668 
extern u_int8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
669 
extern int inet6_option_next(const struct cmsghdr *, u_int8_t **);
670 
extern int inet6_option_find(const struct cmsghdr *, u_int8_t **, int);
671 
 
672 
extern size_t inet6_rthdr_space __P((int, int));
673 
extern struct cmsghdr *inet6_rthdr_init __P((void *, int));
674 
extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *,
675 
                unsigned int));
676 
extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int));
677 
#if 0 /* not implemented yet */
678 
extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *));
679 
#endif
680 
extern int inet6_rthdr_segments __P((const struct cmsghdr *));
681 
extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int));
682 
extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int));
683 
__END_DECLS
684 
 
685 
#endif /* !_NETINET6_IN6_H_ */

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