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 1.3 2003/08/23 11:02:45 rob 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
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * Copyright (c) 1982, 1986, 1990, 1993
36 * The Regents of the University of California. All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * Identification of the network protocol stack
78 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
79 * has the table of implementation/integration differences.
82 #define __KAME_VERSION "20010528/FreeBSD"
85 * Local port number conventions:
87 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
88 * unless a kernel is compiled with IPNOPRIVPORTS defined.
90 * When a user does a bind(2) or connect(2) with a port number of zero,
91 * a non-conflicting local port address is chosen.
93 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
94 * that is settable by sysctl(3); net.inet.ip.anonportmin and
95 * net.inet.ip.anonportmax respectively.
97 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
98 * default assignment range.
100 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
102 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
103 * and exists only for FreeBSD compatibility purposes.
105 * The value IP_PORTRANGE_LOW changes the range to the "low" are
106 * that is (by convention) restricted to privileged processes.
107 * This convention is based on "vouchsafe" principles only.
108 * It is only secure if you trust the remote host to restrict these ports.
109 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
112 #define IPV6PORT_RESERVED 1024
113 #define IPV6PORT_ANONMIN 49152
114 #define IPV6PORT_ANONMAX 65535
115 #define IPV6PORT_RESERVEDMIN 600
116 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
123 u_int8_t __u6_addr8[16];
124 u_int16_t __u6_addr16[8];
125 u_int32_t __u6_addr32[4];
126 } __u6_addr; /* 128-bit IP6 address */
129 #define s6_addr __u6_addr.__u6_addr8
130 #ifdef _KERNEL /* XXX nonstandard */
131 #define s6_addr8 __u6_addr.__u6_addr8
132 #define s6_addr16 __u6_addr.__u6_addr16
133 #define s6_addr32 __u6_addr.__u6_addr32
136 #define INET6_ADDRSTRLEN 46
139 * Socket address for IPv6
141 #ifndef _XOPEN_SOURCE
144 struct sockaddr_in6 {
145 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/
146 u_int8_t sin6_family; /* AF_INET6 (sa_family_t) */
147 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/
148 u_int32_t sin6_flowinfo; /* IP6 flow information */
149 struct in6_addr sin6_addr; /* IP6 address */
150 u_int32_t sin6_scope_id; /* scope zone index */
154 * Local definition for masks
156 #ifdef _KERNEL /* XXX nonstandard */
157 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
158 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
159 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
160 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
161 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
162 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
163 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
164 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
165 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
169 extern const struct sockaddr_in6 sa6_any;
171 extern const struct in6_addr in6mask0;
172 extern const struct in6_addr in6mask32;
173 extern const struct in6_addr in6mask64;
174 extern const struct in6_addr in6mask96;
175 extern const struct in6_addr in6mask128;
179 * Macros started with IPV6_ADDR is KAME local
181 #ifdef _KERNEL /* XXX nonstandard */
182 #if BYTE_ORDER == BIG_ENDIAN
183 #define IPV6_ADDR_INT32_ONE 1
184 #define IPV6_ADDR_INT32_TWO 2
185 #define IPV6_ADDR_INT32_MNL 0xff010000
186 #define IPV6_ADDR_INT32_MLL 0xff020000
187 #define IPV6_ADDR_INT32_SMP 0x0000ffff
188 #define IPV6_ADDR_INT16_ULL 0xfe80
189 #define IPV6_ADDR_INT16_USL 0xfec0
190 #define IPV6_ADDR_INT16_MLL 0xff02
191 #elif BYTE_ORDER == LITTLE_ENDIAN
192 #define IPV6_ADDR_INT32_ONE 0x01000000
193 #define IPV6_ADDR_INT32_TWO 0x02000000
194 #define IPV6_ADDR_INT32_MNL 0x000001ff
195 #define IPV6_ADDR_INT32_MLL 0x000002ff
196 #define IPV6_ADDR_INT32_SMP 0xffff0000
197 #define IPV6_ADDR_INT16_ULL 0x80fe
198 #define IPV6_ADDR_INT16_USL 0xc0fe
199 #define IPV6_ADDR_INT16_MLL 0x02ff
204 * Definition of some useful macros to handle IP6 addresses
206 #define IN6ADDR_ANY_INIT \
207 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
208 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
209 #define IN6ADDR_LOOPBACK_INIT \
210 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
211 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
212 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \
213 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
214 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
215 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
216 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
217 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
218 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
219 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
220 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
222 extern const struct in6_addr in6addr_any;
223 extern const struct in6_addr in6addr_loopback;
224 extern const struct in6_addr in6addr_nodelocal_allnodes;
225 extern const struct in6_addr in6addr_linklocal_allnodes;
226 extern const struct in6_addr in6addr_linklocal_allrouters;
230 * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
231 * does not supply memcmp(). For userland memcmp() is preferred as it is
235 #define IN6_ARE_ADDR_EQUAL(a, b) \
236 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
238 #define IN6_ARE_ADDR_EQUAL(a, b) \
239 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
242 #ifdef _KERNEL /* non standard */
243 /* see if two addresses are equal in a scope-conscious manner. */
244 #define SA6_ARE_ADDR_EQUAL(a, b) \
245 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
246 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \
247 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0))
253 #define IN6_IS_ADDR_UNSPECIFIED(a) \
254 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
255 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
256 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
257 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
262 #define IN6_IS_ADDR_LOOPBACK(a) \
263 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
264 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
265 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
266 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
271 #define IN6_IS_ADDR_V4COMPAT(a) \
272 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
273 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
274 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
275 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
276 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
281 #define IN6_IS_ADDR_V4MAPPED(a) \
282 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
283 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
284 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
290 #ifdef _KERNEL /* XXX nonstandard */
291 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01
292 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
293 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05
294 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
295 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e
297 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
298 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
299 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
300 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
301 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
306 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
308 #define IN6_IS_ADDR_LINKLOCAL(a) \
309 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
310 #define IN6_IS_ADDR_SITELOCAL(a) \
311 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
316 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
318 #ifdef _KERNEL /* XXX nonstandard */
319 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
321 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
327 #ifdef _KERNEL /* refers nonstandard items */
328 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
329 (IN6_IS_ADDR_MULTICAST(a) && \
330 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
331 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
332 (IN6_IS_ADDR_MULTICAST(a) && \
333 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
334 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
335 (IN6_IS_ADDR_MULTICAST(a) && \
336 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
337 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
338 (IN6_IS_ADDR_MULTICAST(a) && \
339 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
340 #define IN6_IS_ADDR_MC_GLOBAL(a) \
341 (IN6_IS_ADDR_MULTICAST(a) && \
342 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
344 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
345 (IN6_IS_ADDR_MULTICAST(a) && \
346 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
347 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
348 (IN6_IS_ADDR_MULTICAST(a) && \
349 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
350 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
351 (IN6_IS_ADDR_MULTICAST(a) && \
352 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
353 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
354 (IN6_IS_ADDR_MULTICAST(a) && \
355 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
356 #define IN6_IS_ADDR_MC_GLOBAL(a) \
357 (IN6_IS_ADDR_MULTICAST(a) && \
358 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
361 #ifdef _KERNEL /* nonstandard */
365 #define IN6_IS_SCOPE_LINKLOCAL(a) \
366 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
367 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
369 #define IFA6_IS_DEPRECATED(a) \
370 ((a)->ia6_lifetime.ia6t_preferred != 0 && \
371 (a)->ia6_lifetime.ia6t_preferred < time_second)
372 #define IFA6_IS_INVALID(a) \
373 ((a)->ia6_lifetime.ia6t_expire != 0 && \
374 (a)->ia6_lifetime.ia6t_expire < time_second)
378 * IP6 route structure
380 #ifndef _XOPEN_SOURCE
382 struct rtentry *ro_rt;
383 struct sockaddr_in6 ro_dst;
388 * Options for use with [gs]etsockopt at the IPV6 level.
389 * First word of comment is data type; bool is stored in int.
392 #if 0 /* the followings are relic in IPv4 and hence are disabled */
393 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
394 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
395 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
396 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
397 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
399 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
400 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
401 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */
402 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */
403 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */
404 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
405 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
406 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
407 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
408 /* RFC2292 options */
409 #define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */
410 #define IPV6_HOPLIMIT 20 /* bool; hop limit */
411 #define IPV6_NEXTHOP 21 /* bool; next hop addr */
412 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */
413 #define IPV6_DSTOPTS 23 /* bool; destination option */
414 #define IPV6_RTHDR 24 /* bool; routing header */
415 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
417 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
418 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
420 #define IPV6_BINDV6ONLY IPV6_V6ONLY
424 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
426 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */
428 #if 1 /* IPV6FIREWALL */
429 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */
430 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
431 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
432 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
433 #define IPV6_FW_GET 34 /* get entire firewall rule chain */
436 /* to define items, should talk with KAME guys first, for *BSD compatibility */
438 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
439 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
440 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
443 * Defaults and limits for options
445 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
446 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
449 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
452 struct in6_addr ipv6mr_multiaddr;
453 unsigned int ipv6mr_interface;
457 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
460 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
461 unsigned int ipi6_ifindex; /* send/recv interface index */
465 * Argument for IPV6_PORTRANGE:
466 * - which range to search when port is unspecified at bind() or connect()
468 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */
469 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
470 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
472 #ifndef _XOPEN_SOURCE
474 * Definitions for inet6 sysctl operations.
476 * Third level is protocol number.
477 * Fourth level is desired variable within that protocol.
479 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
481 #define CTL_IPV6PROTO_NAMES { \
482 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
484 { "tcp6", CTLTYPE_NODE }, \
488 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
491 { "udp6", CTLTYPE_NODE }, \
494 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
495 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
496 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
497 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
499 { "ip6", CTLTYPE_NODE }, \
503 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
505 { "ipsec6", CTLTYPE_NODE }, \
512 { "icmp6", CTLTYPE_NODE }, \
514 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
515 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
516 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
517 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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 }, \
525 { "pim6", CTLTYPE_NODE }, \
529 * Names for IP sysctl objects
531 #define IPV6CTL_FORWARDING 1 /* act as router */
532 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
533 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
535 #define IPV6CTL_DEFMTU 4 /* default MTU */
537 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
538 #define IPV6CTL_STATS 6 /* stats */
539 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
540 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
541 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
542 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
543 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
544 #define IPV6CTL_ACCEPT_RTADV 12
545 #define IPV6CTL_KEEPFAITH 13
546 #define IPV6CTL_LOG_INTERVAL 14
547 #define IPV6CTL_HDRNESTLIMIT 15
548 #define IPV6CTL_DAD_COUNT 16
549 #define IPV6CTL_AUTO_FLOWLABEL 17
550 #define IPV6CTL_DEFMCASTHLIM 18
551 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
552 #define IPV6CTL_KAME_VERSION 20
553 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
554 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
556 #define IPV6CTL_MAPPED_ADDR 23
558 #define IPV6CTL_V6ONLY 24
559 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
560 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
561 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
563 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */
564 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
565 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
566 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
567 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
569 /* New entries should be added here from current IPV6CTL_MAXID value. */
570 /* to define items, should talk with KAME guys first, for *BSD compatibility */
571 #define IPV6CTL_MAXID 37
573 #endif /* !_XOPEN_SOURCE */
576 * Redefinition of mbuf flags
578 #define M_AUTHIPHDR M_PROTO2
579 #define M_DECRYPTED M_PROTO3
580 #define M_LOOP M_PROTO4
581 #define M_AUTHIPDGM M_PROTO5
586 int in6_cksum (struct mbuf *, u_int8_t, u_int32_t, u_int32_t);
587 int in6_localaddr (struct in6_addr *);
588 int in6_addrscope (struct in6_addr *);
589 struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *);
590 struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *);
591 extern void in6_if_up (struct ifnet *);
594 void in6_sin6_2_sin (struct sockaddr_in *sin,
595 struct sockaddr_in6 *sin6);
596 void in6_sin_2_v4mapsin6 (struct sockaddr_in *sin,
597 struct sockaddr_in6 *sin6);
598 void in6_sin6_2_sin_in_sock (struct sockaddr *nam);
599 void in6_sin_2_v4mapsin6_in_sock (struct sockaddr **nam);
601 #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
602 #define sin6tosa(sin6) ((struct sockaddr *)(sin6))
603 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
605 extern int (*faithprefix_p)(struct in6_addr *);
611 extern int inet6_option_space (int);
612 extern int inet6_option_init (void *, struct cmsghdr **, int);
613 extern int inet6_option_append (struct cmsghdr *, const u_int8_t *,
615 extern u_int8_t *inet6_option_alloc (struct cmsghdr *, int, int, int);
616 extern int inet6_option_next (const struct cmsghdr *, u_int8_t **);
617 extern int inet6_option_find (const struct cmsghdr *, u_int8_t **, int);
619 extern size_t inet6_rthdr_space (int, int);
620 extern struct cmsghdr *inet6_rthdr_init (void *, int);
621 extern int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *,
623 extern int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int);
624 #if 0 /* not implemented yet */
625 extern int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *);
627 extern int inet6_rthdr_segments (const struct cmsghdr *);
628 extern struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int);
629 extern int inet6_rthdr_getflags (const struct cmsghdr *, int);
631 extern int inet6_opt_init (void *, size_t);
632 extern int inet6_opt_append (void *, size_t, int, u_int8_t,
633 size_t, u_int8_t, void **);
634 extern int inet6_opt_finish (void *, size_t, int);
635 extern int inet6_opt_set_val (void *, size_t, void *, int);
637 extern int inet6_opt_next (void *, size_t, int, u_int8_t *,
639 extern int inet6_opt_find (void *, size_t, int, u_int8_t,
641 extern int inet6_opt_get_val (void *, size_t, void *, int);
642 extern size_t inet6_rth_space (int, int);
643 extern void *inet6_rth_init (void *, int, int, int);
644 extern int inet6_rth_add (void *, const struct in6_addr *);
645 extern int inet6_rth_reverse (const void *, void *);
646 extern int inet6_rth_segments (const void *);
647 extern struct in6_addr *inet6_rth_getaddr (const void *, int);
650 #endif /* !_NETINET6_IN6_H_ */