1/* $NetBSD: in6_var.h,v 1.100 2018/05/29 04:38:29 ozaki-r Exp $ */
2/* $KAME: in6_var.h,v 1.81 2002/06/08 11:16:51 itojun Exp $ */
3
4/*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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
14 * notice, this list of conditions and the following disclaimer in the
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
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33/*
34 * Copyright (c) 1985, 1986, 1993
35 * The Regents of the University of California. All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * 3. Neither the name of the University nor the names of its contributors
46 * may be used to endorse or promote products derived from this software
47 * without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 *
61 * @(#)in_var.h 8.1 (Berkeley) 6/10/93
62 */
63
64#ifndef _NETINET6_IN6_VAR_H_
65#define _NETINET6_IN6_VAR_H_
66
67#include <sys/callout.h>
68#include <sys/ioccom.h>
69
70/*
71 * Interface address, Internet version. One of these structures
72 * is allocated for each interface with an Internet address.
73 * The ifaddr structure contains the protocol-independent part
74 * of the structure and is assumed to be first.
75 */
76
77/*
78 * pltime/vltime are just for future reference (required to implements 2
79 * hour rule for hosts). they should never be modified by nd6_timeout or
80 * anywhere else.
81 * userland -> kernel: accept pltime/vltime
82 * kernel -> userland: throw up everything
83 * in kernel: modify preferred/expire only
84 */
85struct in6_addrlifetime {
86 time_t ia6t_expire; /* valid lifetime expiration time */
87 time_t ia6t_preferred; /* preferred lifetime expiration time */
88 u_int32_t ia6t_vltime; /* valid lifetime */
89 u_int32_t ia6t_pltime; /* prefix lifetime */
90};
91
92struct lltable;
93struct nd_ifinfo;
94struct in6_ifextra {
95 struct in6_ifstat *in6_ifstat;
96 struct icmp6_ifstat *icmp6_ifstat;
97 struct nd_ifinfo *nd_ifinfo;
98 struct scope6_id *scope6_id;
99 int nprefixes;
100 int ndefrouters;
101 struct lltable *lltable;
102};
103
104LIST_HEAD(in6_multihead, in6_multi);
105struct in6_ifaddr {
106 struct ifaddr ia_ifa; /* protocol-independent info */
107#define ia_ifp ia_ifa.ifa_ifp
108#define ia_flags ia_ifa.ifa_flags
109 struct sockaddr_in6 ia_addr; /* interface address */
110 struct sockaddr_in6 ia_net; /* network number of interface */
111 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
112 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
113 u_int32_t ia_plen; /* prefix length */
114 /* DEPRECATED. Keep it to avoid breaking kvm(3) users */
115 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
116 /* DEPRECATED. Keep it to avoid breaking kvm(3) users */
117 struct in6_multihead _ia6_multiaddrs;
118 /* list of multicast addresses */
119 int ia6_flags;
120
121 struct in6_addrlifetime ia6_lifetime;
122 time_t ia6_createtime; /* the creation time of this address, which is
123 * currently used for temporary addresses only.
124 */
125 time_t ia6_updatetime;
126
127 /* back pointer to the ND prefix (for autoconfigured addresses only) */
128 struct nd_prefix *ia6_ndpr;
129
130 /* multicast addresses joined from the kernel */
131 LIST_HEAD(, in6_multi_mship) ia6_memberships;
132
133#ifdef _KERNEL
134 struct pslist_entry ia6_pslist_entry;
135#endif
136};
137
138#ifdef _KERNEL
139static __inline void
140ia6_acquire(struct in6_ifaddr *ia, struct psref *psref)
141{
142
143 KASSERT(ia != NULL);
144 ifa_acquire(&ia->ia_ifa, psref);
145}
146
147static __inline void
148ia6_release(struct in6_ifaddr *ia, struct psref *psref)
149{
150
151 if (ia == NULL)
152 return;
153 ifa_release(&ia->ia_ifa, psref);
154}
155#endif
156
157/* control structure to manage address selection policy */
158struct in6_addrpolicy {
159 struct sockaddr_in6 addr; /* prefix address */
160 struct sockaddr_in6 addrmask; /* prefix mask */
161 int preced; /* precedence */
162 int label; /* matching label */
163 u_quad_t use; /* statistics */
164};
165
166/*
167 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
168 */
169struct in6_ifstat {
170 u_quad_t ifs6_in_receive; /* # of total input datagram */
171 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
172 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
173 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
174 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
175 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
176 /* NOTE: increment on final dst if */
177 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
178 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
179 /* NOTE: fragment timeout is not here */
180 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
181 /* NOTE: increment on final dst if */
182 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
183 /* NOTE: increment on outgoing if */
184 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
185 /* NOTE: does not include forwrads */
186 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
187 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
188 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
189 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
190 /* NOTE: this is # after fragment */
191 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
192 /* NOTE: increment on final dst if */
193 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
194 /* NOTE: this is # after reass */
195 /* NOTE: increment on final dst if */
196 u_quad_t ifs6_reass_fail; /* # of reass failures */
197 /* NOTE: may not be packet count */
198 /* NOTE: increment on final dst if */
199 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
200 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
201};
202
203/*
204 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
205 * XXX: I'm not sure if this file is the right place for this structure...
206 */
207struct icmp6_ifstat {
208 /*
209 * Input statistics
210 */
211 /* ipv6IfIcmpInMsgs, total # of input messages */
212 u_quad_t ifs6_in_msg;
213 /* ipv6IfIcmpInErrors, # of input error messages */
214 u_quad_t ifs6_in_error;
215 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
216 u_quad_t ifs6_in_dstunreach;
217 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
218 u_quad_t ifs6_in_adminprohib;
219 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
220 u_quad_t ifs6_in_timeexceed;
221 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
222 u_quad_t ifs6_in_paramprob;
223 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
224 u_quad_t ifs6_in_pkttoobig;
225 /* ipv6IfIcmpInEchos, # of input echo requests */
226 u_quad_t ifs6_in_echo;
227 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
228 u_quad_t ifs6_in_echoreply;
229 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
230 u_quad_t ifs6_in_routersolicit;
231 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
232 u_quad_t ifs6_in_routeradvert;
233 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
234 u_quad_t ifs6_in_neighborsolicit;
235 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
236 u_quad_t ifs6_in_neighboradvert;
237 /* ipv6IfIcmpInRedirects, # of input redirects */
238 u_quad_t ifs6_in_redirect;
239 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
240 u_quad_t ifs6_in_mldquery;
241 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
242 u_quad_t ifs6_in_mldreport;
243 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
244 u_quad_t ifs6_in_mlddone;
245
246 /*
247 * Output statistics. We should solve unresolved routing problem...
248 */
249 /* ipv6IfIcmpOutMsgs, total # of output messages */
250 u_quad_t ifs6_out_msg;
251 /* ipv6IfIcmpOutErrors, # of output error messages */
252 u_quad_t ifs6_out_error;
253 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
254 u_quad_t ifs6_out_dstunreach;
255 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
256 u_quad_t ifs6_out_adminprohib;
257 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
258 u_quad_t ifs6_out_timeexceed;
259 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
260 u_quad_t ifs6_out_paramprob;
261 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
262 u_quad_t ifs6_out_pkttoobig;
263 /* ipv6IfIcmpOutEchos, # of output echo requests */
264 u_quad_t ifs6_out_echo;
265 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
266 u_quad_t ifs6_out_echoreply;
267 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
268 u_quad_t ifs6_out_routersolicit;
269 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
270 u_quad_t ifs6_out_routeradvert;
271 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
272 u_quad_t ifs6_out_neighborsolicit;
273 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
274 u_quad_t ifs6_out_neighboradvert;
275 /* ipv6IfIcmpOutRedirects, # of output redirects */
276 u_quad_t ifs6_out_redirect;
277 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
278 u_quad_t ifs6_out_mldquery;
279 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
280 u_quad_t ifs6_out_mldreport;
281 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
282 u_quad_t ifs6_out_mlddone;
283};
284
285/*
286 * If you make changes that change the size of in6_ifreq,
287 * make sure you fix compat/netinet6/in6_var.h
288 */
289struct in6_ifreq {
290 char ifr_name[IFNAMSIZ];
291 union {
292 struct sockaddr_in6 ifru_addr;
293 struct sockaddr_in6 ifru_dstaddr;
294 short ifru_flags;
295 int ifru_flags6;
296 int ifru_metric;
297 void * ifru_data;
298 struct in6_addrlifetime ifru_lifetime;
299 struct in6_ifstat ifru_stat;
300 struct icmp6_ifstat ifru_icmp6stat;
301 } ifr_ifru;
302};
303
304struct in6_aliasreq {
305 char ifra_name[IFNAMSIZ];
306 struct sockaddr_in6 ifra_addr;
307 struct sockaddr_in6 ifra_dstaddr;
308 struct sockaddr_in6 ifra_prefixmask;
309 int ifra_flags;
310 struct in6_addrlifetime ifra_lifetime;
311};
312
313/* prefix type macro */
314#define IN6_PREFIX_ND 1
315#define IN6_PREFIX_RR 2
316
317/*
318 * prefix related flags passed between kernel(NDP related part) and
319 * user land command(ifconfig) and daemon(rtadvd).
320 * Note: We originally intended to use prf_ra{} only within in6_prflags{}, but
321 * it was (probably unintentionally) used in nd6.h as well. Since C++ does
322 * not allow such a reference, prf_ra{} was then moved outside. In general,
323 * however, this structure should not be used directly.
324 */
325struct prf_ra {
326 u_int32_t onlink : 1;
327 u_int32_t autonomous : 1;
328 u_int32_t router : 1;
329 u_int32_t reserved : 5;
330};
331
332struct in6_prflags {
333 struct prf_ra prf_ra;
334 u_char prf_reserved1;
335 u_short prf_reserved2;
336 /* want to put this on 4byte offset */
337 struct prf_rr {
338 u_int32_t decrvalid : 1;
339 u_int32_t decrprefd : 1;
340 u_int32_t reserved : 6;
341 } prf_rr;
342 u_char prf_reserved3;
343 u_short prf_reserved4;
344};
345
346struct in6_prefixreq {
347 char ipr_name[IFNAMSIZ];
348 u_char ipr_origin;
349 u_char ipr_plen;
350 u_int32_t ipr_vltime;
351 u_int32_t ipr_pltime;
352 struct in6_prflags ipr_flags;
353 struct sockaddr_in6 ipr_prefix;
354};
355
356#define PR_ORIG_RA 0
357#define PR_ORIG_RR 1
358#define PR_ORIG_STATIC 2
359#define PR_ORIG_KERNEL 3
360
361#define ipr_raf_onlink ipr_flags.prf_ra.onlink
362#define ipr_raf_auto ipr_flags.prf_ra.autonomous
363
364#define ipr_statef_onlink ipr_flags.prf_state.onlink
365
366#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
367#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
368
369struct in6_rrenumreq {
370 char irr_name[IFNAMSIZ];
371 u_char irr_origin;
372 u_char irr_m_len; /* match len for matchprefix */
373 u_char irr_m_minlen; /* minlen for matching prefix */
374 u_char irr_m_maxlen; /* maxlen for matching prefix */
375 u_char irr_u_uselen; /* uselen for adding prefix */
376 u_char irr_u_keeplen; /* keeplen from matching prefix */
377 struct irr_raflagmask {
378 u_int32_t onlink : 1;
379 u_int32_t autonomous : 1;
380 u_int32_t reserved : 6;
381 } irr_raflagmask;
382 u_int32_t irr_vltime;
383 u_int32_t irr_pltime;
384 struct in6_prflags irr_flags;
385 struct sockaddr_in6 irr_matchprefix;
386 struct sockaddr_in6 irr_useprefix;
387};
388
389#define irr_raf_mask_onlink irr_raflagmask.onlink
390#define irr_raf_mask_auto irr_raflagmask.autonomous
391#define irr_raf_mask_reserved irr_raflagmask.reserved
392
393#define irr_raf_onlink irr_flags.prf_ra.onlink
394#define irr_raf_auto irr_flags.prf_ra.autonomous
395
396#define irr_statef_onlink irr_flags.prf_state.onlink
397
398#define irr_rrf irr_flags.prf_rr
399#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
400#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
401
402/*
403 * Given a pointer to an in6_ifaddr (ifaddr),
404 * return a pointer to the addr as a sockaddr_in6
405 */
406#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
407#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
408#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
409#define IA6_SIN6(ia) (&((ia)->ia_addr))
410#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
411#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
412#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
413
414#ifdef _KERNEL
415#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
416 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
417 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
418 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
419 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
420#endif
421
422#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
423#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
424
425#ifdef _KERNEL
426/*
427 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
428 * we do not shift numbers for binary compatibility.
429 */
430#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
431#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
432#endif
433
434#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
435#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
436
437#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
438/* 26 was OSIOCAIFADDR_IN6 */
439
440/* 70 was OSIOCSIFPHYADDR_IN6 */
441#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
442#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
443
444#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
445
446#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
447#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist)
448#ifdef _KERNEL
449#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
450#endif
451#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
452#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
453#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
454#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
455/* 81 was old SIOCGIFALIFETIME_IN6 */
456#if 0
457/* withdrawn - do not reuse number 82 */
458#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
459#endif
460#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
461#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
462
463#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
464#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
465
466#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
467
468#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
469#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
470#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
471#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
472#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
473 struct in6_rrenumreq) /* change */
474#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
475 struct in6_rrenumreq) /* set global */
476#define SIOCGIFALIFETIME_IN6 _IOWR('i', 106, struct in6_ifreq)
477#define SIOCAIFADDR_IN6 _IOW('i', 107, struct in6_aliasreq)
478#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
479#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq)
480#define SIOCSIFPHYADDR_IN6 _IOW('i', 110, struct in6_aliasreq)
481
482
483/* XXX: Someone decided to switch to 'u' here for unknown reasons! */
484#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
485 struct sioc_sg_req6) /* get s,g pkt cnt */
486#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
487 struct sioc_mif_req6) /* get pkt cnt per if */
488#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
489#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
490
491#define IN6_IFF_ANYCAST 0x01 /* anycast address */
492#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
493#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
494#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
495#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
496#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
497 * (used only at first SIOC* call)
498 */
499#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
500#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
501
502#define IN6_IFFBITS \
503 "\020\1ANYCAST\2TENTATIVE\3DUPLICATED\4DETACHED\5DEPRECATED\6NODAD" \
504 "\7AUTOCONF\10TEMPORARY"
505
506
507/* do not input/output */
508#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
509
510#ifdef _KERNEL
511#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
512#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
513#endif
514
515#ifdef _KERNEL
516
517#include <sys/mutex.h>
518#include <sys/pserialize.h>
519
520#include <net/pktqueue.h>
521
522extern pktqueue_t *ip6_pktq;
523
524MALLOC_DECLARE(M_IP6OPT);
525
526extern struct pslist_head in6_ifaddr_list;
527extern kmutex_t in6_ifaddr_lock;
528
529#define IN6_ADDRLIST_ENTRY_INIT(__ia) \
530 PSLIST_ENTRY_INIT((__ia), ia6_pslist_entry)
531#define IN6_ADDRLIST_ENTRY_DESTROY(__ia) \
532 PSLIST_ENTRY_DESTROY((__ia), ia6_pslist_entry)
533#define IN6_ADDRLIST_READER_EMPTY() \
534 (PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
535 ia6_pslist_entry) == NULL)
536#define IN6_ADDRLIST_READER_FIRST() \
537 PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
538 ia6_pslist_entry)
539#define IN6_ADDRLIST_READER_NEXT(__ia) \
540 PSLIST_READER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry)
541#define IN6_ADDRLIST_READER_FOREACH(__ia) \
542 PSLIST_READER_FOREACH((__ia), &in6_ifaddr_list, \
543 struct in6_ifaddr, ia6_pslist_entry)
544#define IN6_ADDRLIST_WRITER_INSERT_HEAD(__ia) \
545 PSLIST_WRITER_INSERT_HEAD(&in6_ifaddr_list, (__ia), ia6_pslist_entry)
546#define IN6_ADDRLIST_WRITER_REMOVE(__ia) \
547 PSLIST_WRITER_REMOVE((__ia), ia6_pslist_entry)
548#define IN6_ADDRLIST_WRITER_FOREACH(__ia) \
549 PSLIST_WRITER_FOREACH((__ia), &in6_ifaddr_list, struct in6_ifaddr, \
550 ia6_pslist_entry)
551#define IN6_ADDRLIST_WRITER_FIRST() \
552 PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
553 ia6_pslist_entry)
554#define IN6_ADDRLIST_WRITER_NEXT(__ia) \
555 PSLIST_WRITER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry)
556#define IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia, __new) \
557 PSLIST_WRITER_INSERT_AFTER((__ia), (__new), ia6_pslist_entry)
558#define IN6_ADDRLIST_WRITER_EMPTY() \
559 (PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
560 ia6_pslist_entry) == NULL)
561#define IN6_ADDRLIST_WRITER_INSERT_TAIL(__new) \
562 do { \
563 if (IN6_ADDRLIST_WRITER_EMPTY()) { \
564 IN6_ADDRLIST_WRITER_INSERT_HEAD((__new)); \
565 } else { \
566 struct in6_ifaddr *__ia; \
567 IN6_ADDRLIST_WRITER_FOREACH(__ia) { \
568 if (IN6_ADDRLIST_WRITER_NEXT(__ia) == NULL) { \
569 IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia,\
570 (__new)); \
571 break; \
572 } \
573 } \
574 } \
575 } while (0)
576
577#define in6_ifstat_inc(ifp, tag) \
578do { \
579 if (ifp) \
580 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
581} while (/*CONSTCOND*/ 0)
582
583extern const struct in6_addr zeroin6_addr;
584extern const u_char inet6ctlerrmap[];
585extern unsigned long in6_maxmtu;
586extern bool in6_present;
587extern callout_t in6_tmpaddrtimer_ch;
588
589/*
590 * Macro for finding the internet address structure (in6_ifaddr) corresponding
591 * to a given interface (ifnet structure).
592 */
593static __inline struct in6_ifaddr *
594in6_get_ia_from_ifp(struct ifnet *ifp)
595{
596 struct ifaddr *ifa;
597
598 IFADDR_READER_FOREACH(ifa, ifp) {
599 if (ifa->ifa_addr->sa_family == AF_INET6)
600 break;
601 }
602 return (struct in6_ifaddr *)ifa;
603}
604
605static __inline struct in6_ifaddr *
606in6_get_ia_from_ifp_psref(struct ifnet *ifp, struct psref *psref)
607{
608 struct in6_ifaddr *ia;
609 int s;
610
611 s = pserialize_read_enter();
612 ia = in6_get_ia_from_ifp(ifp);
613 if (ia != NULL)
614 ia6_acquire(ia, psref);
615 pserialize_read_exit(s);
616
617 return ia;
618}
619#endif /* _KERNEL */
620
621/*
622 * Multi-cast membership entry. One for each group/ifp that a PCB
623 * belongs to.
624 */
625struct in6_multi_mship {
626 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
627 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
628};
629
630struct in6_multi {
631 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
632 struct in6_addr in6m_addr; /* IP6 multicast address */
633 struct ifnet *in6m_ifp; /* back pointer to ifnet */
634 /* DEPRECATED. Keep it to avoid breaking kvm(3) users */
635 struct in6_ifaddr *_in6m_ia; /* back pointer to in6_ifaddr */
636 u_int in6m_refcount; /* # membership claims by sockets */
637 u_int in6m_state; /* state of the membership */
638 int in6m_timer; /* delay to send the 1st report */
639 struct timeval in6m_timer_expire; /* when the timer expires */
640 callout_t in6m_timer_ch;
641};
642
643#define IN6M_TIMER_UNDEF -1
644
645
646#ifdef _KERNEL
647/* flags to in6_update_ifa */
648#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
649
650#if 0
651/*
652 * Macros for looking up the in6_multi_mship record for a given IP6 multicast
653 * address on a given interface. If no matching record is found, "imm"
654 * returns NULL.
655 */
656static __inline struct in6_multi_mship *
657in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp,
658 struct ip6_moptions *imop)
659{
660 struct in6_multi_mship *imm;
661
662 LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) {
663 if (imm->i6mm_maddr->in6m_ifp != ifp)
664 continue;
665 if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr,
666 addr))
667 break;
668 }
669 return imm;
670}
671
672#define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \
673/* struct in6_addr __addr; */ \
674/* struct ifnet *__ifp; */ \
675/* struct ip6_moptions *__imop */ \
676/* struct in6_multi_mship *__imm; */ \
677do { \
678 (__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \
679} while (/*CONSTCOND*/ 0)
680#endif
681
682void in6_init(void);
683
684void in6_multi_lock(int);
685void in6_multi_unlock(void);
686bool in6_multi_locked(int);
687struct in6_multi *
688 in6_lookup_multi(const struct in6_addr *, const struct ifnet *);
689bool in6_multi_group(const struct in6_addr *, const struct ifnet *);
690void in6_purge_multi(struct ifnet *);
691struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *,
692 int *, int);
693void in6_delmulti(struct in6_multi *);
694void in6_delmulti_locked(struct in6_multi *);
695void in6_lookup_and_delete_multi(const struct in6_addr *,
696 const struct ifnet *);
697struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *,
698 int *, int);
699int in6_leavegroup(struct in6_multi_mship *);
700int in6_mask2len(struct in6_addr *, u_char *);
701int in6_control(struct socket *, u_long, void *, struct ifnet *);
702int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, int);
703void in6_purgeaddr(struct ifaddr *);
704void in6_purgeif(struct ifnet *);
705void in6_setmaxmtu (void);
706int in6_if2idlen (struct ifnet *);
707void *in6_domifattach(struct ifnet *);
708void in6_domifdetach(struct ifnet *, void *);
709void in6_ifremlocal(struct ifaddr *);
710void in6_ifaddlocal(struct ifaddr *);
711struct in6_ifaddr *
712 in6ifa_ifpforlinklocal(const struct ifnet *, int);
713struct in6_ifaddr *
714 in6ifa_ifpforlinklocal_psref(const struct ifnet *, int, struct psref *);
715struct in6_ifaddr *
716 in6ifa_ifpwithaddr(const struct ifnet *, const struct in6_addr *);
717struct in6_ifaddr *
718 in6ifa_ifpwithaddr_psref(const struct ifnet *, const struct in6_addr *,
719 struct psref *);
720struct in6_ifaddr *in6ifa_ifwithaddr(const struct in6_addr *, uint32_t);
721int in6_matchlen(struct in6_addr *, struct in6_addr *);
722int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int);
723void in6_prefixlen2mask(struct in6_addr *, int);
724void in6_purgeprefix(struct ifnet *);
725void in6_purge_mcast_references(struct in6_multi *);
726
727int ip6flow_fastforward(struct mbuf **); /* IPv6 fast forward routine */
728
729int in6_src_ioctl(u_long, void *);
730int in6_is_addr_deprecated(struct sockaddr_in6 *);
731struct in6pcb;
732
733#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable)
734
735void in6_sysctl_multicast_setup(struct sysctllog **);
736
737#endif /* _KERNEL */
738
739#endif /* !_NETINET6_IN6_VAR_H_ */
740