1 /* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.7 2002/08/01 19:38:50 ume Exp $ */
2 /* $DragonFly: src/sys/netinet6/in6.h,v 1.5 2006/09/03 18:29:17 dillon Exp $ */
3 /* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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13 * notice, this list of conditions and the following disclaimer.
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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.
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
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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
35 * Copyright (c) 1982, 1986, 1990, 1993
36 * The Regents of the University of California. All rights reserved.
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39 * modification, are permitted provided that the following conditions
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51 * may be used to endorse or promote products derived from this software
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56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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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
66 * @(#)in.h 8.3 (Berkeley) 1/3/94
69 #ifndef __KAME_NETINET_IN_H_INCLUDED_
70 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
73 #ifndef _NETINET6_IN6_H_
74 #define _NETINET6_IN6_H_
77 #include <sys/types.h>
81 * Identification of the network protocol stack
82 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
83 * has the table of implementation/integration differences.
86 #define __KAME_VERSION "20010528/FreeBSD"
89 * Local port number conventions:
91 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
92 * unless a kernel is compiled with IPNOPRIVPORTS defined.
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.
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.
101 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
102 * default assignment range.
104 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
106 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
107 * and exists only for FreeBSD compatibility purposes.
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.
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)
127 u_int8_t __u6_addr8[16];
128 u_int16_t __u6_addr16[8];
129 u_int32_t __u6_addr32[4];
130 } __u6_addr; /* 128-bit IP6 address */
133 #define s6_addr __u6_addr.__u6_addr8
134 #ifdef _KERNEL /* XXX nonstandard */
135 #define s6_addr8 __u6_addr.__u6_addr8
136 #define s6_addr16 __u6_addr.__u6_addr16
137 #define s6_addr32 __u6_addr.__u6_addr32
140 #define INET6_ADDRSTRLEN 46
143 * Socket address for IPv6
145 #ifndef _XOPEN_SOURCE
148 struct sockaddr_in6 {
149 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/
150 u_int8_t sin6_family; /* AF_INET6 (sa_family_t) */
151 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/
152 u_int32_t sin6_flowinfo; /* IP6 flow information */
153 struct in6_addr sin6_addr; /* IP6 address */
154 u_int32_t sin6_scope_id; /* scope zone index */
158 * Local definition for masks
160 #ifdef _KERNEL /* XXX nonstandard */
161 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
162 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
163 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
164 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
165 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
166 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
167 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
168 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
169 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
173 extern const struct sockaddr_in6 sa6_any;
175 extern const struct in6_addr in6mask0;
176 extern const struct in6_addr in6mask32;
177 extern const struct in6_addr in6mask64;
178 extern const struct in6_addr in6mask96;
179 extern const struct in6_addr in6mask128;
183 * Macros started with IPV6_ADDR is KAME local
185 #ifdef _KERNEL /* XXX nonstandard */
186 #if BYTE_ORDER == BIG_ENDIAN
187 #define IPV6_ADDR_INT32_ONE 1
188 #define IPV6_ADDR_INT32_TWO 2
189 #define IPV6_ADDR_INT32_MNL 0xff010000
190 #define IPV6_ADDR_INT32_MLL 0xff020000
191 #define IPV6_ADDR_INT32_SMP 0x0000ffff
192 #define IPV6_ADDR_INT16_ULL 0xfe80
193 #define IPV6_ADDR_INT16_USL 0xfec0
194 #define IPV6_ADDR_INT16_MLL 0xff02
195 #elif BYTE_ORDER == LITTLE_ENDIAN
196 #define IPV6_ADDR_INT32_ONE 0x01000000
197 #define IPV6_ADDR_INT32_TWO 0x02000000
198 #define IPV6_ADDR_INT32_MNL 0x000001ff
199 #define IPV6_ADDR_INT32_MLL 0x000002ff
200 #define IPV6_ADDR_INT32_SMP 0xffff0000
201 #define IPV6_ADDR_INT16_ULL 0x80fe
202 #define IPV6_ADDR_INT16_USL 0xc0fe
203 #define IPV6_ADDR_INT16_MLL 0x02ff
208 * Definition of some useful macros to handle IP6 addresses
210 #define IN6ADDR_ANY_INIT \
211 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
212 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
213 #define IN6ADDR_LOOPBACK_INIT \
214 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
215 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
216 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \
217 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
218 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
219 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
220 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
221 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
222 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
223 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
224 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
226 extern const struct in6_addr kin6addr_any;
227 extern const struct in6_addr kin6addr_loopback;
228 extern const struct in6_addr kin6addr_nodelocal_allnodes;
229 extern const struct in6_addr kin6addr_linklocal_allnodes;
230 extern const struct in6_addr kin6addr_linklocal_allrouters;
234 * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
235 * does not supply memcmp(). For userland memcmp() is preferred as it is
239 #define IN6_ARE_ADDR_EQUAL(a, b) \
240 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
242 #define IN6_ARE_ADDR_EQUAL(a, b) \
243 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
246 #ifdef _KERNEL /* non standard */
247 /* see if two addresses are equal in a scope-conscious manner. */
248 #define SA6_ARE_ADDR_EQUAL(a, b) \
249 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
250 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \
251 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0))
257 #define IN6_IS_ADDR_UNSPECIFIED(a) \
258 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
259 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
260 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
261 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
266 #define IN6_IS_ADDR_LOOPBACK(a) \
267 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
268 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
269 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
270 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
275 #define IN6_IS_ADDR_V4COMPAT(a) \
276 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
277 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
278 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
279 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
280 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
285 #define IN6_IS_ADDR_V4MAPPED(a) \
286 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
287 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
288 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
294 #ifdef _KERNEL /* XXX nonstandard */
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
301 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
302 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
303 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
304 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
305 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
310 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
312 #define IN6_IS_ADDR_LINKLOCAL(a) \
313 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
314 #define IN6_IS_ADDR_SITELOCAL(a) \
315 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
320 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
322 #ifdef _KERNEL /* XXX nonstandard */
323 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
325 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
331 #ifdef _KERNEL /* refers nonstandard items */
332 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
333 (IN6_IS_ADDR_MULTICAST(a) && \
334 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
335 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
336 (IN6_IS_ADDR_MULTICAST(a) && \
337 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
338 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
339 (IN6_IS_ADDR_MULTICAST(a) && \
340 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
341 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
342 (IN6_IS_ADDR_MULTICAST(a) && \
343 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
344 #define IN6_IS_ADDR_MC_GLOBAL(a) \
345 (IN6_IS_ADDR_MULTICAST(a) && \
346 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
348 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
349 (IN6_IS_ADDR_MULTICAST(a) && \
350 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
351 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
352 (IN6_IS_ADDR_MULTICAST(a) && \
353 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
354 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
355 (IN6_IS_ADDR_MULTICAST(a) && \
356 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
357 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
358 (IN6_IS_ADDR_MULTICAST(a) && \
359 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
360 #define IN6_IS_ADDR_MC_GLOBAL(a) \
361 (IN6_IS_ADDR_MULTICAST(a) && \
362 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
365 #ifdef _KERNEL /* nonstandard */
369 #define IN6_IS_SCOPE_LINKLOCAL(a) \
370 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
371 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
373 #define IFA6_IS_DEPRECATED(a) \
374 ((a)->ia6_lifetime.ia6t_preferred != 0 && \
375 (a)->ia6_lifetime.ia6t_preferred < time_second)
376 #define IFA6_IS_INVALID(a) \
377 ((a)->ia6_lifetime.ia6t_expire != 0 && \
378 (a)->ia6_lifetime.ia6t_expire < time_second)
382 * IP6 route structure
384 #ifndef _XOPEN_SOURCE
386 struct rtentry *ro_rt;
387 struct sockaddr_in6 ro_dst;
392 * Options for use with [gs]etsockopt at the IPV6 level.
393 * First word of comment is data type; bool is stored in int.
396 #if 0 /* the followings are relic in IPv4 and hence are disabled */
397 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
398 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
399 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
400 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
401 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
403 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
404 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
405 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */
406 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */
407 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */
408 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
409 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
410 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
411 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
412 /* RFC2292 options */
413 #define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */
414 #define IPV6_HOPLIMIT 20 /* bool; hop limit */
415 #define IPV6_NEXTHOP 21 /* bool; next hop addr */
416 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */
417 #define IPV6_DSTOPTS 23 /* bool; destination option */
418 #define IPV6_RTHDR 24 /* bool; routing header */
419 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
421 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
422 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
424 #define IPV6_BINDV6ONLY IPV6_V6ONLY
428 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
430 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */
432 #if 1 /* IPV6FIREWALL */
433 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */
434 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
435 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
436 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
437 #define IPV6_FW_GET 34 /* get entire firewall rule chain */
440 /* to define items, should talk with KAME guys first, for *BSD compatibility */
442 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
443 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
444 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
447 * Defaults and limits for options
449 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
450 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
453 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
456 struct in6_addr ipv6mr_multiaddr;
457 unsigned int ipv6mr_interface;
461 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
464 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
465 unsigned int ipi6_ifindex; /* send/recv interface index */
469 * Argument for IPV6_PORTRANGE:
470 * - which range to search when port is unspecified at bind() or connect()
472 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */
473 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
474 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
476 #ifndef _XOPEN_SOURCE
478 * Definitions for inet6 sysctl operations.
480 * Third level is protocol number.
481 * Fourth level is desired variable within that protocol.
483 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
485 #define CTL_IPV6PROTO_NAMES { \
486 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
488 { "tcp6", CTLTYPE_NODE }, \
492 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
495 { "udp6", CTLTYPE_NODE }, \
498 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
499 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
500 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
501 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
503 { "ip6", CTLTYPE_NODE }, \
507 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
509 { "ipsec6", CTLTYPE_NODE }, \
516 { "icmp6", CTLTYPE_NODE }, \
518 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
519 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
520 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
521 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 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 }, \
529 { "pim6", CTLTYPE_NODE }, \
533 * Names for IP sysctl objects
535 #define IPV6CTL_FORWARDING 1 /* act as router */
536 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
537 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
539 #define IPV6CTL_DEFMTU 4 /* default MTU */
541 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
542 #define IPV6CTL_STATS 6 /* stats */
543 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
544 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
545 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
546 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
547 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
548 #define IPV6CTL_ACCEPT_RTADV 12
549 #define IPV6CTL_KEEPFAITH 13
550 #define IPV6CTL_LOG_INTERVAL 14
551 #define IPV6CTL_HDRNESTLIMIT 15
552 #define IPV6CTL_DAD_COUNT 16
553 #define IPV6CTL_AUTO_FLOWLABEL 17
554 #define IPV6CTL_DEFMCASTHLIM 18
555 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
556 #define IPV6CTL_KAME_VERSION 20
557 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
558 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
560 #define IPV6CTL_MAPPED_ADDR 23
562 #define IPV6CTL_V6ONLY 24
563 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
564 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
565 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
567 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */
568 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
569 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
570 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
571 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
573 /* New entries should be added here from current IPV6CTL_MAXID value. */
574 /* to define items, should talk with KAME guys first, for *BSD compatibility */
575 #define IPV6CTL_MAXID 37
577 #endif /* !_XOPEN_SOURCE */
580 * Redefinition of mbuf flags
582 #define M_AUTHIPHDR M_PROTO2
583 #define M_DECRYPTED M_PROTO3
584 #define M_LOOP M_PROTO4
585 #define M_AUTHIPDGM M_PROTO5
596 int in6_cksum (struct mbuf *, u_int8_t, u_int32_t, u_int32_t);
597 int in6_localaddr (struct in6_addr *);
598 int in6_addrscope (struct in6_addr *);
599 struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *);
600 struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *);
601 extern void in6_if_up (struct ifnet *);
604 void in6_sin6_2_sin (struct sockaddr_in *sin,
605 struct sockaddr_in6 *sin6);
606 void in6_sin_2_v4mapsin6 (struct sockaddr_in *sin,
607 struct sockaddr_in6 *sin6);
608 void in6_sin6_2_sin_in_sock (struct sockaddr *nam);
609 void in6_sin_2_v4mapsin6_in_sock (struct sockaddr **nam);
611 #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
612 #define sin6tosa(sin6) ((struct sockaddr *)(sin6))
613 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
615 extern int (*faithprefix_p)(struct in6_addr *);
621 extern int inet6_option_space (int);
622 extern int inet6_option_init (void *, struct cmsghdr **, int);
623 extern int inet6_option_append (struct cmsghdr *, const u_int8_t *,
625 extern u_int8_t *inet6_option_alloc (struct cmsghdr *, int, int, int);
626 extern int inet6_option_next (const struct cmsghdr *, u_int8_t **);
627 extern int inet6_option_find (const struct cmsghdr *, u_int8_t **, int);
629 extern size_t inet6_rthdr_space (int, int);
630 extern struct cmsghdr *inet6_rthdr_init (void *, int);
631 extern int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *,
633 extern int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int);
634 #if 0 /* not implemented yet */
635 extern int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *);
637 extern int inet6_rthdr_segments (const struct cmsghdr *);
638 extern struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int);
639 extern int inet6_rthdr_getflags (const struct cmsghdr *, int);
641 extern int inet6_opt_init (void *, size_t);
642 extern int inet6_opt_append (void *, size_t, int, u_int8_t,
643 size_t, u_int8_t, void **);
644 extern int inet6_opt_finish (void *, size_t, int);
645 extern int inet6_opt_set_val (void *, size_t, void *, int);
647 extern int inet6_opt_next (void *, size_t, int, u_int8_t *,
649 extern int inet6_opt_find (void *, size_t, int, u_int8_t,
651 extern int inet6_opt_get_val (void *, size_t, void *, int);
652 extern size_t inet6_rth_space (int, int);
653 extern void *inet6_rth_init (void *, int, int, int);
654 extern int inet6_rth_add (void *, const struct in6_addr *);
655 extern int inet6_rth_reverse (const void *, void *);
656 extern int inet6_rth_segments (const void *);
657 extern struct in6_addr *inet6_rth_getaddr (const void *, int);
660 #endif /* !_NETINET6_IN6_H_ */