2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $
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. Neither the name of the University 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.
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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
62 * @(#)in.h 8.3 (Berkeley) 1/3/94
65 #ifndef __KAME_NETINET_IN_H_INCLUDED_
66 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
69 #ifndef _NETINET6_IN6_H_
70 #define _NETINET6_IN6_H_
73 * Identification of the network protocol stack
74 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
75 * has the table of implementation/integration differences.
78 #define __KAME_VERSION "FreeBSD"
81 * IPv6 port allocation rules should mirror the IPv4 rules and are controlled
82 * by the net.inet.ip.portrange sysctl tree. The following defines exist
83 * for compatibility with userland applications that need them.
86 #define IPV6PORT_RESERVED 1024
87 #define IPV6PORT_ANONMIN 49152
88 #define IPV6PORT_ANONMAX 65535
89 #define IPV6PORT_RESERVEDMIN 600
90 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
98 uint8_t __u6_addr8[16];
99 uint16_t __u6_addr16[8];
100 uint32_t __u6_addr32[4];
101 } __u6_addr; /* 128-bit IP6 address */
104 #define s6_addr __u6_addr.__u6_addr8
105 #if defined(_KERNEL) || defined(_STANDALONE) /* XXX nonstandard */
106 #define s6_addr8 __u6_addr.__u6_addr8
107 #define s6_addr16 __u6_addr.__u6_addr16
108 #define s6_addr32 __u6_addr.__u6_addr32
111 #define INET6_ADDRSTRLEN 46
114 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6.
118 * Socket address for IPv6
124 struct sockaddr_in6 {
125 uint8_t sin6_len; /* length of this struct */
126 sa_family_t sin6_family; /* AF_INET6 */
127 in_port_t sin6_port; /* Transport layer port # */
128 uint32_t sin6_flowinfo; /* IP6 flow information */
129 struct in6_addr sin6_addr; /* IP6 address */
130 uint32_t sin6_scope_id; /* scope zone index */
134 * Local definition for masks
136 #ifdef _KERNEL /* XXX nonstandard */
137 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
138 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
139 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
140 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
141 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
142 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
143 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
144 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
145 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
149 extern const struct sockaddr_in6 sa6_any;
151 extern const struct in6_addr in6mask0;
152 extern const struct in6_addr in6mask32;
153 extern const struct in6_addr in6mask64;
154 extern const struct in6_addr in6mask96;
155 extern const struct in6_addr in6mask128;
159 * Macros started with IPV6_ADDR is KAME local
161 #ifdef _KERNEL /* XXX nonstandard */
162 #if _BYTE_ORDER == _BIG_ENDIAN
163 #define IPV6_ADDR_INT32_ONE 1
164 #define IPV6_ADDR_INT32_TWO 2
165 #define IPV6_ADDR_INT32_MNL 0xff010000
166 #define IPV6_ADDR_INT32_MLL 0xff020000
167 #define IPV6_ADDR_INT32_SMP 0x0000ffff
168 #define IPV6_ADDR_INT16_ULL 0xfe80
169 #define IPV6_ADDR_INT16_USL 0xfec0
170 #define IPV6_ADDR_INT16_MLL 0xff02
171 #elif _BYTE_ORDER == _LITTLE_ENDIAN
172 #define IPV6_ADDR_INT32_ONE 0x01000000
173 #define IPV6_ADDR_INT32_TWO 0x02000000
174 #define IPV6_ADDR_INT32_MNL 0x000001ff
175 #define IPV6_ADDR_INT32_MLL 0x000002ff
176 #define IPV6_ADDR_INT32_SMP 0xffff0000
177 #define IPV6_ADDR_INT16_ULL 0x80fe
178 #define IPV6_ADDR_INT16_USL 0xc0fe
179 #define IPV6_ADDR_INT16_MLL 0x02ff
184 * Definition of some useful macros to handle IP6 addresses
187 #define IN6ADDR_ANY_INIT \
188 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
189 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
190 #define IN6ADDR_LOOPBACK_INIT \
191 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
192 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
193 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \
194 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
195 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
196 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \
197 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
198 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
199 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
200 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
201 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
202 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
203 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
204 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
205 #define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \
206 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
207 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}}
210 extern const struct in6_addr in6addr_any;
211 extern const struct in6_addr in6addr_loopback;
213 extern const struct in6_addr in6addr_nodelocal_allnodes;
214 extern const struct in6_addr in6addr_linklocal_allnodes;
215 extern const struct in6_addr in6addr_linklocal_allrouters;
216 extern const struct in6_addr in6addr_linklocal_allv2routers;
223 #define IN6_ARE_ADDR_EQUAL(a, b) \
224 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
230 #define IN6_IS_ADDR_UNSPECIFIED(a) \
231 ((a)->__u6_addr.__u6_addr32[0] == 0 && \
232 (a)->__u6_addr.__u6_addr32[1] == 0 && \
233 (a)->__u6_addr.__u6_addr32[2] == 0 && \
234 (a)->__u6_addr.__u6_addr32[3] == 0)
239 #define IN6_IS_ADDR_LOOPBACK(a) \
240 ((a)->__u6_addr.__u6_addr32[0] == 0 && \
241 (a)->__u6_addr.__u6_addr32[1] == 0 && \
242 (a)->__u6_addr.__u6_addr32[2] == 0 && \
243 (a)->__u6_addr.__u6_addr32[3] == ntohl(1))
248 #define IN6_IS_ADDR_V4COMPAT(a) \
249 ((a)->__u6_addr.__u6_addr32[0] == 0 && \
250 (a)->__u6_addr.__u6_addr32[1] == 0 && \
251 (a)->__u6_addr.__u6_addr32[2] == 0 && \
252 (a)->__u6_addr.__u6_addr32[3] != 0 && \
253 (a)->__u6_addr.__u6_addr32[3] != ntohl(1))
258 #define IN6_IS_ADDR_V4MAPPED(a) \
259 ((a)->__u6_addr.__u6_addr32[0] == 0 && \
260 (a)->__u6_addr.__u6_addr32[1] == 0 && \
261 (a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff))
267 #ifdef _KERNEL /* XXX nonstandard */
268 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01
269 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
270 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
271 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05
272 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
273 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e
275 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
276 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
277 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
278 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
279 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
280 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
285 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
287 #define IN6_IS_ADDR_LINKLOCAL(a) \
288 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
289 #define IN6_IS_ADDR_SITELOCAL(a) \
290 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
295 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
297 #ifdef _KERNEL /* XXX nonstandard */
298 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
300 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
306 #ifdef _KERNEL /* refers nonstandard items */
307 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
308 (IN6_IS_ADDR_MULTICAST(a) && \
309 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
310 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
311 (IN6_IS_ADDR_MULTICAST(a) && \
312 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
313 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
314 (IN6_IS_ADDR_MULTICAST(a) && \
315 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
316 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
317 (IN6_IS_ADDR_MULTICAST(a) && \
318 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
319 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
320 (IN6_IS_ADDR_MULTICAST(a) && \
321 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
322 #define IN6_IS_ADDR_MC_GLOBAL(a) \
323 (IN6_IS_ADDR_MULTICAST(a) && \
324 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
326 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
327 (IN6_IS_ADDR_MULTICAST(a) && \
328 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
329 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
330 (IN6_IS_ADDR_MULTICAST(a) && \
331 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
332 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
333 (IN6_IS_ADDR_MULTICAST(a) && \
334 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
335 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
336 (IN6_IS_ADDR_MULTICAST(a) && \
337 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
338 #define IN6_IS_ADDR_MC_GLOBAL(a) \
339 (IN6_IS_ADDR_MULTICAST(a) && \
340 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
343 #ifdef _KERNEL /* nonstandard */
347 #define IN6_IS_SCOPE_LINKLOCAL(a) \
348 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
349 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
350 #define IN6_IS_SCOPE_EMBED(a) \
351 ((IN6_IS_ADDR_LINKLOCAL(a)) || \
352 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
353 (IN6_IS_ADDR_MC_INTFACELOCAL(a)))
355 #define IFA6_IS_DEPRECATED(a) \
356 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \
357 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \
358 (a)->ia6_lifetime.ia6t_pltime)
359 #define IFA6_IS_INVALID(a) \
360 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \
361 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \
362 (a)->ia6_lifetime.ia6t_vltime)
366 * IP6 route structure
371 struct nhop_object *ro_nh;
372 struct llentry *ro_lle;
374 * ro_prepend and ro_plen are only used for bpf to pass in a
375 * preformed header. They are not cacheable.
380 uint16_t ro_mtu; /* saved ro_rt mtu */
382 struct sockaddr_in6 ro_dst;
387 #define MTAG_ABI_IPV6 1444287380 /* IPv6 ABI */
388 #define IPV6_TAG_DIRECT 0 /* direct-dispatch IPv6 */
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 /* ipv6_mreq; join a group membership */
409 #define IPV6_LEAVE_GROUP 13 /* ipv6_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 */
414 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */
415 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
416 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
417 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
418 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */
419 #define IPV6_2292RTHDR 24 /* bool; routing header */
420 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
423 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
424 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */
426 #define IPV6_BINDV6ONLY IPV6_V6ONLY
429 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
430 /* 29; unused; was IPV6_FAITH */
431 #if 1 /* IPV6FIREWALL */
432 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */
433 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
434 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
435 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
436 #define IPV6_FW_GET 34 /* get entire firewall rule chain */
439 /* new socket options introduced in RFC3542 */
440 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */
442 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */
443 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */
444 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */
445 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */
446 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */
448 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
451 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */
452 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */
454 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt),
455 4 bytes int; MTU notification (cmsg) */
456 #if 0 /*obsoleted during 2292bis -> 3542*/
457 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm
458 (cmsg only/not in of RFC3542) */
461 /* more new socket options introduced in RFC3542 */
462 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */
463 #define IPV6_HOPLIMIT 47 /* int; send hop limit */
464 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */
465 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
466 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
467 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */
469 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */
470 /* obsoleted by RFC3542 */
473 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */
475 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */
477 #define IPV6_TCLASS 61 /* int; send traffic class value */
478 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
480 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as
481 * the source address.
484 #define IPV6_BINDANY 64 /* bool: allow bind to any address */
485 /* unused; was IPV6_BIND_MULTI */
486 /* unused; was IPV6_RSS_LISTEN_BUCKET */
487 #define IPV6_FLOWID 67 /* int; flowid of given socket */
488 #define IPV6_FLOWTYPE 68 /* int; flowtype of given socket */
489 #define IPV6_RSSBUCKETID 69 /* int; RSS bucket ID of given socket */
490 #define IPV6_RECVFLOWID 70 /* bool; receive IP6 flowid/flowtype w/ datagram */
491 #define IPV6_RECVRSSBUCKETID 71 /* bool; receive IP6 RSS bucket id w/ datagram */
493 #define IPV6_ORIGDSTADDR 72 /* bool: allow getting dstaddr /port info */
494 #define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR
497 * The following option is private; do not use it from user applications.
498 * It is deliberately defined to the same value as IP_MSFILTER.
500 #define IPV6_MSFILTER 74 /* struct __msfilterreq;
501 * set/get multicast source filter list.
504 /* The following option deals with the 802.1Q Ethernet Priority Code Point */
505 #define IPV6_VLAN_PCP 75 /* int; set/get PCP used for packet, */
506 /* -1 use interface default */
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 * Limit for IPv6 multicast memberships
523 #define IPV6_MAX_MEMBERSHIPS 4095
526 * Default resource limits for IPv6 multicast source filtering.
527 * These may be modified by sysctl.
529 #define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */
530 #define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */
533 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
536 struct in6_addr ipv6mr_multiaddr;
537 unsigned int ipv6mr_interface;
541 * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
544 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
545 unsigned int ipi6_ifindex; /* send/recv interface index */
549 * Control structure for IPV6_RECVPATHMTU socket option.
552 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */
557 * Argument for IPV6_PORTRANGE:
558 * - which range to search when port is unspecified at bind() or connect()
560 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */
561 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
562 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
566 * Definitions for inet6 sysctl operations.
568 * Third level is protocol number.
569 * Fourth level is desired variable within that protocol.
571 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
574 * Names for IP sysctl objects
576 #define IPV6CTL_FORWARDING 1 /* act as router */
577 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
578 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
580 #define IPV6CTL_DEFMTU 4 /* default MTU */
582 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
583 #define IPV6CTL_STATS 6 /* stats */
584 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
585 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
586 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
587 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
588 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
589 #define IPV6CTL_ACCEPT_RTADV 12
590 /* 13; unused; was: IPV6CTL_KEEPFAITH */
591 #define IPV6CTL_LOG_INTERVAL 14
592 #define IPV6CTL_HDRNESTLIMIT 15
593 #define IPV6CTL_DAD_COUNT 16
594 #define IPV6CTL_AUTO_FLOWLABEL 17
595 #define IPV6CTL_DEFMCASTHLIM 18
596 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
597 #define IPV6CTL_KAME_VERSION 20
598 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
599 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
601 #define IPV6CTL_MAPPED_ADDR 23
603 #define IPV6CTL_V6ONLY 24
604 /* IPV6CTL_RTEXPIRE 25 deprecated */
605 /* IPV6CTL_RTMINEXPIRE 26 deprecated */
606 /* IPV6CTL_RTMAXCACHE 27 deprecated */
608 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */
609 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
610 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
611 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
612 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
613 #define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */
614 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */
615 #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */
617 #define IPV6CTL_MAXFRAGS 41 /* max fragments */
619 #define IPV6CTL_IFQ 42 /* ip6intrq node */
620 #define IPV6CTL_ISATAPRTR 43 /* isatap router */
622 #define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */
624 /* New entries should be added here from current IPV6CTL_MAXID value. */
625 /* to define items, should talk with KAME guys first, for *BSD compatibility */
626 #define IPV6CTL_STEALTH 45
628 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47
629 #define IPV6CTL_NO_RADR 48 /* No defroute from RA */
630 #define IPV6CTL_NORBIT_RAIF 49 /* Disable R-bit in NA on RA
632 #define IPV6CTL_RFC6204W3 50 /* Accept defroute even when forwarding
634 #define IPV6CTL_INTRQMAXLEN 51 /* max length of IPv6 netisr queue */
635 #define IPV6CTL_INTRDQMAXLEN 52 /* max length of direct IPv6 netisr
637 #define IPV6CTL_MAXFRAGSPERPACKET 53 /* Max fragments per packet */
638 #define IPV6CTL_MAXFRAGBUCKETSIZE 54 /* Max reassembly queues per bucket */
639 #define IPV6CTL_MAXID 55
640 #endif /* __BSD_VISIBLE */
643 * Since both netinet/ and netinet6/ call into netipsec/ and netpfil/,
644 * the protocol specific mbuf flags are shared between them.
646 #define M_FASTFWD_OURS M_PROTO1 /* changed dst to local */
647 #define M_IP6_NEXTHOP M_PROTO2 /* explicit ip nexthop */
648 #define M_IP_NEXTHOP M_PROTO2 /* explicit ip nexthop */
649 #define M_SKIP_FIREWALL M_PROTO3 /* skip firewall processing */
650 #define M_AUTHIPHDR M_PROTO4
651 #define M_DECRYPTED M_PROTO5
652 #define M_LOOP M_PROTO6
653 #define M_AUTHIPDGM M_PROTO7
654 #define M_RTALERT_MLD M_PROTO8
655 #define M_FRAGMENTED M_PROTO9 /* contained fragment header */
661 int in6_cksum(struct mbuf *, uint8_t, uint32_t, uint32_t);
662 int in6_cksum_partial(struct mbuf *, uint8_t, uint32_t, uint32_t, uint32_t);
663 int in6_cksum_pseudo(struct ip6_hdr *, uint32_t, uint8_t, uint16_t);
665 int in6_localaddr(struct in6_addr *);
666 int in6_localip(struct in6_addr *);
667 bool in6_localip_fib(struct in6_addr *, uint16_t);
668 int in6_ifhasaddr(struct ifnet *, struct in6_addr *);
669 int in6_addrscope(const struct in6_addr *);
670 char *ip6_sprintf(char *, const struct in6_addr *);
671 struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);
672 extern void in6_if_up(struct ifnet *);
675 void in6_sin6_2_sin(struct sockaddr_in *sin,
676 struct sockaddr_in6 *sin6);
677 void in6_sin_2_v4mapsin6(struct sockaddr_in *sin,
678 struct sockaddr_in6 *sin6);
679 void in6_sin6_2_sin_in_sock(struct sockaddr *nam);
680 void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam);
681 extern void addrsel_policy_init(void);
683 #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
684 #define sin6tosa(sin6) ((struct sockaddr *)(sin6))
685 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
689 #ifndef _SIZE_T_DECLARED
690 typedef __size_t size_t;
691 #define _SIZE_T_DECLARED
694 #ifndef _SOCKLEN_T_DECLARED
695 typedef __socklen_t socklen_t;
696 #define _SOCKLEN_T_DECLARED
704 extern int inet6_option_space(int);
705 extern int inet6_option_init(void *, struct cmsghdr **, int);
706 extern int inet6_option_append(struct cmsghdr *, const uint8_t *,
708 extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
709 extern int inet6_option_next(const struct cmsghdr *, uint8_t **);
710 extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int);
712 extern size_t inet6_rthdr_space(int, int);
713 extern struct cmsghdr *inet6_rthdr_init(void *, int);
714 extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *,
716 extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);
717 #if 0 /* not implemented yet */
718 extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *);
720 extern int inet6_rthdr_segments(const struct cmsghdr *);
721 extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);
722 extern int inet6_rthdr_getflags(const struct cmsghdr *, int);
724 extern int inet6_opt_init(void *, socklen_t);
725 extern int inet6_opt_append(void *, socklen_t, int, uint8_t, socklen_t,
727 extern int inet6_opt_finish(void *, socklen_t, int);
728 extern int inet6_opt_set_val(void *, int, void *, socklen_t);
730 extern int inet6_opt_next(void *, socklen_t, int, uint8_t *, socklen_t *,
732 extern int inet6_opt_find(void *, socklen_t, int, uint8_t, socklen_t *,
734 extern int inet6_opt_get_val(void *, int, void *, socklen_t);
735 extern socklen_t inet6_rth_space(int, int);
736 extern void *inet6_rth_init(void *, socklen_t, int, int);
737 extern int inet6_rth_add(void *, const struct in6_addr *);
738 extern int inet6_rth_reverse(const void *, void *);
739 extern int inet6_rth_segments(const void *);
740 extern struct in6_addr *inet6_rth_getaddr(const void *, int);
743 #endif /* __BSD_VISIBLE */
745 #endif /* !_NETINET6_IN6_H_ */