1 /* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.7 2002/08/01 19:38:50 ume Exp $ */
2 /* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
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15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the project nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
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26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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34 * Copyright (c) 1982, 1986, 1990, 1993
35 * The Regents of the University of California. All rights reserved.
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38 * modification, are permitted provided that the following conditions
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
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44 * documentation and/or other materials provided with the distribution.
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46 * may be used to endorse or promote products derived from this software
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51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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61 * @(#)in.h 8.3 (Berkeley) 1/3/94
64 #ifndef __KAME_NETINET_IN_H_INCLUDED_
65 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
68 #ifndef _NETINET6_IN6_H_
69 #define _NETINET6_IN6_H_
72 * Identification of the network protocol stack
73 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
74 * has the table of implementation/integration differences.
77 #define __KAME_VERSION "20010528/FreeBSD"
79 #ifndef _SA_FAMILY_T_DECLARED
80 typedef __uint8_t sa_family_t;
81 #define _SA_FAMILY_T_DECLARED
84 #ifndef _SIZE_T_DECLARED
85 typedef __size_t size_t;
86 #define _SIZE_T_DECLARED
89 #ifndef _SOCKLEN_T_DECLARED
90 #define _SOCKLEN_T_DECLARED
91 typedef __socklen_t socklen_t;
94 #ifndef _UINT8_T_DECLARED
95 typedef __uint8_t uint8_t;
96 #define _UINT8_T_DECLARED
98 #ifndef _UINT16_T_DECLARED
99 typedef __uint16_t uint16_t;
100 #define _UINT16_T_DECLARED
102 #ifndef _UINT32_T_DECLARED
103 typedef __uint32_t uint32_t;
104 #define _UINT32_T_DECLARED
108 * Local port number conventions:
110 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
111 * unless a kernel is compiled with IPNOPRIVPORTS defined.
113 * When a user does a bind(2) or connect(2) with a port number of zero,
114 * a non-conflicting local port address is chosen.
116 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
117 * that is settable by sysctl(3); net.inet.ip.anonportmin and
118 * net.inet.ip.anonportmax respectively.
120 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
121 * default assignment range.
123 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
125 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
126 * and exists only for FreeBSD compatibility purposes.
128 * The value IP_PORTRANGE_LOW changes the range to the "low" are
129 * that is (by convention) restricted to privileged processes.
130 * This convention is based on "vouchsafe" principles only.
131 * It is only secure if you trust the remote host to restrict these ports.
132 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
135 #define IPV6PORT_RESERVED 1024
136 #define IPV6PORT_ANONMIN 49152
137 #define IPV6PORT_ANONMAX 65535
138 #define IPV6PORT_RESERVEDMIN 600
139 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
144 #ifndef _STRUCT_IN6_ADDR_DECLARED
147 uint8_t __u6_addr8[16];
148 uint16_t __u6_addr16[8];
149 uint32_t __u6_addr32[4];
150 } __u6_addr; /* 128-bit IP6 address */
152 #define _STRUCT_IN6_ADDR_DECLARED
155 #define s6_addr __u6_addr.__u6_addr8
156 #define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */
157 #define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */
158 #if __BSD_VISIBLE /* XXX nonstandard */
159 #define s6_addr8 __u6_addr.__u6_addr8
160 #define s6_addr16 __u6_addr.__u6_addr16
161 #define s6_addr32 __u6_addr.__u6_addr32
164 #define INET6_ADDRSTRLEN 46
167 * Socket address for IPv6
169 #ifndef _XOPEN_SOURCE
172 struct sockaddr_in6 {
173 uint8_t sin6_len; /* length of this struct(sa_family_t)*/
174 sa_family_t sin6_family; /* AF_INET6 */
175 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/
176 uint32_t sin6_flowinfo; /* IP6 flow information */
177 struct in6_addr sin6_addr; /* IP6 address */
178 uint32_t sin6_scope_id; /* scope zone index */
182 * Local definition for masks
184 #ifdef _KERNEL /* XXX nonstandard */
185 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
186 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
187 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
188 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
189 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
190 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
191 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
192 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
193 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
197 extern const struct sockaddr_in6 sa6_any;
199 extern const struct in6_addr in6mask0;
200 extern const struct in6_addr in6mask32;
201 extern const struct in6_addr in6mask64;
202 extern const struct in6_addr in6mask96;
203 extern const struct in6_addr in6mask128;
207 * Macros started with IPV6_ADDR is KAME local
209 #if BYTE_ORDER == BIG_ENDIAN
210 #define _IPV6_ADDR_INT16_UL_MASK 0xffc0
211 #define _IPV6_ADDR_INT16_ULL 0xfe80
212 #define _IPV6_ADDR_INT16_USL 0xfec0
214 #define _IPV6_ADDR_INT16_UL_MASK 0xc0ff
215 #define _IPV6_ADDR_INT16_ULL 0x80fe
216 #define _IPV6_ADDR_INT16_USL 0xc0fe
219 #ifdef _KERNEL /* XXX nonstandard */
220 #if BYTE_ORDER == BIG_ENDIAN
221 #define IPV6_ADDR_INT32_ONE 1
222 #define IPV6_ADDR_INT32_TWO 2
223 #define IPV6_ADDR_INT32_MNL 0xff010000
224 #define IPV6_ADDR_INT32_MLL 0xff020000
225 #define IPV6_ADDR_INT32_SMP 0x0000ffff
226 #define IPV6_ADDR_INT16_MLL 0xff02
227 #elif BYTE_ORDER == LITTLE_ENDIAN
228 #define IPV6_ADDR_INT32_ONE 0x01000000
229 #define IPV6_ADDR_INT32_TWO 0x02000000
230 #define IPV6_ADDR_INT32_MNL 0x000001ff
231 #define IPV6_ADDR_INT32_MLL 0x000002ff
232 #define IPV6_ADDR_INT32_SMP 0xffff0000
233 #define IPV6_ADDR_INT16_MLL 0x02ff
235 #define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL
236 #define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL
240 * Definition of some useful macros to handle IP6 addresses
242 #define IN6ADDR_ANY_INIT \
243 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
244 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
245 #define IN6ADDR_LOOPBACK_INIT \
246 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
247 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
248 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \
249 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
250 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
251 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \
252 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
253 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
254 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
255 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
256 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
257 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
258 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
259 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
260 #define IN6ADDR_LINKLOCAL_ALLMDNS_INIT \
261 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
262 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb }}}
265 extern const struct in6_addr kin6addr_any;
266 extern const struct in6_addr kin6addr_loopback;
267 extern const struct in6_addr kin6addr_nodelocal_allnodes;
268 extern const struct in6_addr kin6addr_linklocal_allnodes;
269 extern const struct in6_addr kin6addr_linklocal_allrouters;
271 extern const struct in6_addr in6addr_any;
272 extern const struct in6_addr in6addr_loopback;
273 extern const struct in6_addr in6addr_nodelocal_allnodes;
274 extern const struct in6_addr in6addr_linklocal_allnodes;
277 #define IN6_ARE_ADDR_EQUAL(a, b) \
278 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
280 #ifdef _KERNEL /* non standard */
281 /* see if two addresses are equal in a scope-conscious manner. */
282 #define SA6_ARE_ADDR_EQUAL(a, b) \
283 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
284 (a)->sin6_scope_id == (b)->sin6_scope_id) && \
285 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0))
291 #define IN6_IS_ADDR_UNSPECIFIED(a) \
292 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \
293 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0)
298 #define IN6_IS_ADDR_LOOPBACK(a) \
299 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \
300 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1))
305 #define IN6_IS_ADDR_V4MAPPED(a) \
306 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \
307 (a)->_s6_addr32[2] == ntohl(0x0000ffff))
310 * IPv4 compatible. Deprecated by RFC4291.
312 #define IN6_IS_ADDR_V4COMPAT(a) \
313 ((a)->_s6_addr32[0] == 0 && \
314 (a)->_s6_addr32[1] == 0 && \
315 (a)->_s6_addr32[2] == 0 && \
316 (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1))
322 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
323 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
324 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
325 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
326 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
327 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
329 #ifdef _KERNEL /* XXX nonstandard */
330 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01
331 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
332 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
333 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05
334 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
335 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e
340 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
342 #define IN6_IS_ADDR_LINKLOCAL(a) \
343 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL)
344 #define IN6_IS_ADDR_SITELOCAL(a) \
345 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL)
350 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
351 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
352 #ifdef _KERNEL /* XXX nonstandard */
353 #define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a)
359 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
360 (IN6_IS_ADDR_MULTICAST(a) && \
361 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
363 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
364 (IN6_IS_ADDR_MULTICAST(a) && \
365 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
367 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
368 (IN6_IS_ADDR_MULTICAST(a) && \
369 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
371 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
372 (IN6_IS_ADDR_MULTICAST(a) && \
373 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
375 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
376 (IN6_IS_ADDR_MULTICAST(a) && \
377 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
379 #define IN6_IS_ADDR_MC_GLOBAL(a) \
380 (IN6_IS_ADDR_MULTICAST(a) && \
381 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
383 #ifdef _KERNEL /* nonstandard */
387 #define IN6_IS_SCOPE_LINKLOCAL(a) \
388 (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a))
389 #define IN6_IS_SCOPE_EMBED(a) \
390 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
391 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
392 (IN6_IS_ADDR_MC_INTFACELOCAL(a)))
395 #define IFA6_IS_DEPRECATED(a) \
396 ((a)->ia6_lifetime.ia6t_preferred != 0 && \
397 (a)->ia6_lifetime.ia6t_preferred < time_uptime)
399 #define IFA6_IS_INVALID(a) \
400 ((a)->ia6_lifetime.ia6t_expire != 0 && \
401 (a)->ia6_lifetime.ia6t_expire < time_uptime)
405 * IP6 route structure
407 #ifndef _XOPEN_SOURCE
409 struct rtentry *ro_rt;
410 struct sockaddr_in6 ro_dst;
415 * Options for use with [gs]etsockopt at the IPV6 level.
416 * First word of comment is data type; bool is stored in int.
419 #if 0 /* the followings are relic in IPv4 and hence are disabled */
420 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
421 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
422 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
423 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
424 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
426 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
427 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
428 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */
429 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */
430 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */
431 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
432 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
433 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
434 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
435 /* RFC2292 options */
437 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */
438 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
439 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
440 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
441 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */
442 #define IPV6_2292RTHDR 24 /* bool; routing header */
443 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
446 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
447 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
449 #define IPV6_BINDV6ONLY IPV6_V6ONLY
452 #if 1 /* IPV6FIREWALL */
453 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */
454 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
455 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
456 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
457 #define IPV6_FW_GET 34 /* get entire firewall rule chain */
461 * new socket options introduced in RFC3542
463 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */
464 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */
465 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */
466 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */
467 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */
468 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */
470 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
472 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */
473 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */
475 /* mtuinfo; get the current path MTU (sopt),
476 * 4 bytes int; MTU notification (cmsg)
478 #define IPV6_PATHMTU 44
479 #if 0 /*obsoleted during 2292bis -> 3542*/
480 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm
481 (cmsg only/not in of RFC3542) */
483 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */
484 #define IPV6_HOPLIMIT 47 /* int; send hop limit */
485 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */
486 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
487 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
488 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */
489 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options, this is obsoleted by RFC3542 */
491 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */
493 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */
495 #define IPV6_TCLASS 61 /* int; send traffic class value */
496 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
498 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as
499 * the source address.
502 * The following option is private; do not use it from user applications.
503 * It is deliberately defined to the same value as IP_MSFILTER.
505 #define IPV6_MSFILTER 74 /* struct __msfilterreq;
506 * set/get multicast source filter list.
508 /* to define items, should talk with KAME guys first, for *BSD compatibility */
510 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
511 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
512 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
515 * Defaults and limits for options
517 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
518 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
521 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
524 struct in6_addr ipv6mr_multiaddr;
525 unsigned int ipv6mr_interface;
529 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
532 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
533 unsigned int ipi6_ifindex; /* send/recv interface index */
537 * New Control structure for IPV6_RECVPATHMTU socket option introduced in RFC3542.
540 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */
545 * Argument for IPV6_PORTRANGE:
546 * - which range to search when port is unspecified at bind() or connect()
548 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */
549 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
550 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
552 #ifndef _XOPEN_SOURCE
554 * Definitions for inet6 sysctl operations.
556 * Third level is protocol number.
557 * Fourth level is desired variable within that protocol.
559 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
562 * Names for IP sysctl objects
564 #define IPV6CTL_FORWARDING 1 /* act as router */
565 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
566 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
568 #define IPV6CTL_DEFMTU 4 /* default MTU */
570 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
571 #define IPV6CTL_STATS 6 /* stats */
572 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
573 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
574 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
575 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
576 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
577 #define IPV6CTL_ACCEPT_RTADV 12
578 #define IPV6CTL_LOG_INTERVAL 14
579 #define IPV6CTL_HDRNESTLIMIT 15
580 #define IPV6CTL_DAD_COUNT 16
581 #define IPV6CTL_AUTO_FLOWLABEL 17
582 #define IPV6CTL_DEFMCASTHLIM 18
583 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
584 #define IPV6CTL_KAME_VERSION 20
585 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
586 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
588 #define IPV6CTL_MAPPED_ADDR 23
589 #define IPV6CTL_V6ONLY 24
591 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
592 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
593 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
595 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */
596 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
597 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
598 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
599 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
601 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */
602 #define IPV6CTL_MINHLIM 39 /* minimum Hop-Limit */
604 #define IPV6CTL_MAXFRAGS 41 /* max fragments */
606 /* New entries should be added here from current IPV6CTL_MAXID value. */
607 /* to define items, should talk with KAME guys first, for *BSD compatibility */
609 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47
610 #define IPV6CTL_MAXID 48
611 #endif /* !_XOPEN_SOURCE */
614 * Redefinition of mbuf flags
616 #define M_AUTHIPHDR M_PROTO2
617 #define M_DECRYPTED M_PROTO3
618 #define M_LOOP M_PROTO4
619 #define M_AUTHIPDGM M_PROTO5
629 int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t);
630 int in6_localaddr (struct in6_addr *);
631 int in6_addrscope (struct in6_addr *);
632 struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *, struct ucred *);
633 struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *);
635 void addrsel_policy_init (void);
637 #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
638 #define sin6tosa(sin6) ((struct sockaddr *)(sin6))
639 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
642 #include <sys/cdefs.h> /* for __BEGIN_DECLS and __END_DECLS */
647 uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int);
648 int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int);
649 int inet6_option_find (const struct cmsghdr *, uint8_t **, int);
650 int inet6_option_init (void *, struct cmsghdr **, int);
651 int inet6_option_next (const struct cmsghdr *, uint8_t **);
652 int inet6_option_space (int);
654 int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **);
655 int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **);
656 int inet6_opt_finish (void *, socklen_t, int);
657 int inet6_opt_get_val (void *, int, void *, socklen_t);
658 int inet6_opt_init (void *, socklen_t);
659 int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **);
660 int inet6_opt_set_val (void *, int, void *, socklen_t);
662 int inet6_rth_add (void *, const struct in6_addr *);
663 struct in6_addr *inet6_rth_getaddr (const void *, int);
664 void *inet6_rth_init (void *, socklen_t, int, int);
665 int inet6_rth_reverse (const void *, void *);
666 int inet6_rth_segments (const void *);
667 socklen_t inet6_rth_space (int, int);
669 int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *,
671 struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int);
672 int inet6_rthdr_getflags (const struct cmsghdr *, int);
673 struct cmsghdr *inet6_rthdr_init (void *, int);
674 int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int);
675 int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *);
676 int inet6_rthdr_segments (const struct cmsghdr *);
677 size_t inet6_rthdr_space (int, int);
680 #endif /* !_NETINET6_IN6_H_ */