1/* $NetBSD: in6_var.h,v 1.87 2016/09/14 16:17:17 christos 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 struct in6_multihead ia6_multiaddrs;
117 /* list of multicast addresses */
118 int ia6_flags;
119
120 struct in6_addrlifetime ia6_lifetime;
121 time_t ia6_createtime; /* the creation time of this address, which is
122 * currently used for temporary addresses only.
123 */
124 time_t ia6_updatetime;
125
126 /* back pointer to the ND prefix (for autoconfigured addresses only) */
127 struct nd_prefix *ia6_ndpr;
128
129 /* multicast addresses joined from the kernel */
130 LIST_HEAD(, in6_multi_mship) ia6_memberships;
131
132#ifdef _KERNEL
133 struct pslist_entry ia6_pslist_entry;
134#endif
135};
136
137#ifdef _KERNEL
138static inline void
139ia6_acquire(struct in6_ifaddr *ia, struct psref *psref)
140{
141
142 KASSERT(ia != NULL);
143 ifa_acquire(&ia->ia_ifa, psref);
144}
145
146static inline void
147ia6_release(struct in6_ifaddr *ia, struct psref *psref)
148{
149
150 if (ia == NULL)
151 return;
152 ifa_release(&ia->ia_ifa, psref);
153}
154#endif
155
156/* control structure to manage address selection policy */
157struct in6_addrpolicy {
158 struct sockaddr_in6 addr; /* prefix address */
159 struct sockaddr_in6 addrmask; /* prefix mask */
160 int preced; /* precedence */
161 int label; /* matching label */
162 u_quad_t use; /* statistics */
163};
164
165/*
166 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
167 */
168struct in6_ifstat {
169 u_quad_t ifs6_in_receive; /* # of total input datagram */
170 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
171 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
172 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
173 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
174 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
175 /* NOTE: increment on final dst if */
176 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
177 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
178 /* NOTE: fragment timeout is not here */
179 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
180 /* NOTE: increment on final dst if */
181 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
182 /* NOTE: increment on outgoing if */
183 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
184 /* NOTE: does not include forwrads */
185 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
186 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
187 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
188 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
189 /* NOTE: this is # after fragment */
190 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
191 /* NOTE: increment on final dst if */
192 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
193 /* NOTE: this is # after reass */
194 /* NOTE: increment on final dst if */
195 u_quad_t ifs6_reass_fail; /* # of reass failures */
196 /* NOTE: may not be packet count */
197 /* NOTE: increment on final dst if */
198 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
199 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
200};
201
202/*
203 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
204 * XXX: I'm not sure if this file is the right place for this structure...
205 */
206struct icmp6_ifstat {
207 /*
208 * Input statistics
209 */
210 /* ipv6IfIcmpInMsgs, total # of input messages */
211 u_quad_t ifs6_in_msg;
212 /* ipv6IfIcmpInErrors, # of input error messages */
213 u_quad_t ifs6_in_error;
214 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
215 u_quad_t ifs6_in_dstunreach;
216 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
217 u_quad_t ifs6_in_adminprohib;
218 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
219 u_quad_t ifs6_in_timeexceed;
220 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
221 u_quad_t ifs6_in_paramprob;
222 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
223 u_quad_t ifs6_in_pkttoobig;
224 /* ipv6IfIcmpInEchos, # of input echo requests */
225 u_quad_t ifs6_in_echo;
226 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
227 u_quad_t ifs6_in_echoreply;
228 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
229 u_quad_t ifs6_in_routersolicit;
230 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
231 u_quad_t ifs6_in_routeradvert;
232 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
233 u_quad_t ifs6_in_neighborsolicit;
234 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
235 u_quad_t ifs6_in_neighboradvert;
236 /* ipv6IfIcmpInRedirects, # of input redirects */
237 u_quad_t ifs6_in_redirect;
238 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
239 u_quad_t ifs6_in_mldquery;
240 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
241 u_quad_t ifs6_in_mldreport;
242 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
243 u_quad_t ifs6_in_mlddone;
244
245 /*
246 * Output statistics. We should solve unresolved routing problem...
247 */
248 /* ipv6IfIcmpOutMsgs, total # of output messages */
249 u_quad_t ifs6_out_msg;
250 /* ipv6IfIcmpOutErrors, # of output error messages */
251 u_quad_t ifs6_out_error;
252 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
253 u_quad_t ifs6_out_dstunreach;
254 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
255 u_quad_t ifs6_out_adminprohib;
256 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
257 u_quad_t ifs6_out_timeexceed;
258 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
259 u_quad_t ifs6_out_paramprob;
260 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
261 u_quad_t ifs6_out_pkttoobig;
262 /* ipv6IfIcmpOutEchos, # of output echo requests */
263 u_quad_t ifs6_out_echo;
264 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
265 u_quad_t ifs6_out_echoreply;
266 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
267 u_quad_t ifs6_out_routersolicit;
268 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
269 u_quad_t ifs6_out_routeradvert;
270 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
271 u_quad_t ifs6_out_neighborsolicit;
272 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
273 u_quad_t ifs6_out_neighboradvert;
274 /* ipv6IfIcmpOutRedirects, # of output redirects */
275 u_quad_t ifs6_out_redirect;
276 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
277 u_quad_t ifs6_out_mldquery;
278 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
279 u_quad_t ifs6_out_mldreport;
280 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
281 u_quad_t ifs6_out_mlddone;
282};
283
284/*
285 * If you make changes that change the size of in6_ifreq,
286 * make sure you fix compat/netinet6/in6_var.h
287 */
288struct in6_ifreq {
289 char ifr_name[IFNAMSIZ];
290 union {
291 struct sockaddr_in6 ifru_addr;
292 struct sockaddr_in6 ifru_dstaddr;
293 short ifru_flags;
294 int ifru_flags6;
295 int ifru_metric;
296 void * ifru_data;
297 struct in6_addrlifetime ifru_lifetime;
298 struct in6_ifstat ifru_stat;
299 struct icmp6_ifstat ifru_icmp6stat;
300 } ifr_ifru;
301};
302
303struct in6_aliasreq {
304 char ifra_name[IFNAMSIZ];
305 struct sockaddr_in6 ifra_addr;
306 struct sockaddr_in6 ifra_dstaddr;
307 struct sockaddr_in6 ifra_prefixmask;
308 int ifra_flags;
309 struct in6_addrlifetime ifra_lifetime;
310};
311
312/* prefix type macro */
313#define IN6_PREFIX_ND 1
314#define IN6_PREFIX_RR 2
315
316/*
317 * prefix related flags passed between kernel(NDP related part) and
318 * user land command(ifconfig) and daemon(rtadvd).
319 * Note: We originally intended to use prf_ra{} only within in6_prflags{}, but
320 * it was (probably unintentionally) used in nd6.h as well. Since C++ does
321 * not allow such a reference, prf_ra{} was then moved outside. In general,
322 * however, this structure should not be used directly.
323 */
324struct prf_ra {
325 u_int32_t onlink : 1;
326 u_int32_t autonomous : 1;
327 u_int32_t router : 1;
328 u_int32_t reserved : 5;
329};
330
331struct in6_prflags {
332 struct prf_ra prf_ra;
333 u_char prf_reserved1;
334 u_short prf_reserved2;
335 /* want to put this on 4byte offset */
336 struct prf_rr {
337 u_int32_t decrvalid : 1;
338 u_int32_t decrprefd : 1;
339 u_int32_t reserved : 6;
340 } prf_rr;
341 u_char prf_reserved3;
342 u_short prf_reserved4;
343};
344
345struct in6_prefixreq {
346 char ipr_name[IFNAMSIZ];
347 u_char ipr_origin;
348 u_char ipr_plen;
349 u_int32_t ipr_vltime;
350 u_int32_t ipr_pltime;
351 struct in6_prflags ipr_flags;
352 struct sockaddr_in6 ipr_prefix;
353};
354
355#define PR_ORIG_RA 0
356#define PR_ORIG_RR 1
357#define PR_ORIG_STATIC 2
358#define PR_ORIG_KERNEL 3
359
360#define ipr_raf_onlink ipr_flags.prf_ra.onlink
361#define ipr_raf_auto ipr_flags.prf_ra.autonomous
362
363#define ipr_statef_onlink ipr_flags.prf_state.onlink
364
365#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
366#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
367
368struct in6_rrenumreq {
369 char irr_name[IFNAMSIZ];
370 u_char irr_origin;
371 u_char irr_m_len; /* match len for matchprefix */
372 u_char irr_m_minlen; /* minlen for matching prefix */
373 u_char irr_m_maxlen; /* maxlen for matching prefix */
374 u_char irr_u_uselen; /* uselen for adding prefix */
375 u_char irr_u_keeplen; /* keeplen from matching prefix */
376 struct irr_raflagmask {
377 u_int32_t onlink : 1;
378 u_int32_t autonomous : 1;
379 u_int32_t reserved : 6;
380 } irr_raflagmask;
381 u_int32_t irr_vltime;
382 u_int32_t irr_pltime;
383 struct in6_prflags irr_flags;
384 struct sockaddr_in6 irr_matchprefix;
385 struct sockaddr_in6 irr_useprefix;
386};
387
388#define irr_raf_mask_onlink irr_raflagmask.onlink
389#define irr_raf_mask_auto irr_raflagmask.autonomous
390#define irr_raf_mask_reserved irr_raflagmask.reserved
391
392#define irr_raf_onlink irr_flags.prf_ra.onlink
393#define irr_raf_auto irr_flags.prf_ra.autonomous
394
395#define irr_statef_onlink irr_flags.prf_state.onlink
396
397#define irr_rrf irr_flags.prf_rr
398#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
399#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
400
401/*
402 * Given a pointer to an in6_ifaddr (ifaddr),
403 * return a pointer to the addr as a sockaddr_in6
404 */
405#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
406#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
407#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
408#define IA6_SIN6(ia) (&((ia)->ia_addr))
409#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
410#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
411#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
412
413#ifdef _KERNEL
414#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
415 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
416 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
417 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
418 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
419#endif
420
421#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
422#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
423
424#ifdef _KERNEL
425/*
426 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
427 * we do not shift numbers for binary compatibility.
428 */
429#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
430#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
431#endif
432
433#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
434#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
435
436#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
437/* 26 was OSIOCAIFADDR_IN6 */
438
439/* 70 was OSIOCSIFPHYADDR_IN6 */
440#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
441#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
442
443#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
444
445#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
446#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist)
447#ifdef _KERNEL
448#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
449#endif
450#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
451#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
452#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
453#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
454/* 81 was old SIOCGIFALIFETIME_IN6 */
455#if 0
456/* withdrawn - do not reuse number 82 */
457#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
458#endif
459#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
460#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
461
462#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
463#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
464
465#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
466
467#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
468#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
469#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
470#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
471#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
472 struct in6_rrenumreq) /* change */
473#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
474 struct in6_rrenumreq) /* set global */
475#define SIOCGIFALIFETIME_IN6 _IOWR('i', 106, struct in6_ifreq)
476#define SIOCAIFADDR_IN6 _IOW('i', 107, struct in6_aliasreq)
477#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
478#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq)
479#define SIOCSIFPHYADDR_IN6 _IOW('i', 110, struct in6_aliasreq)
480
481
482/* XXX: Someone decided to switch to 'u' here for unknown reasons! */
483#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
484 struct sioc_sg_req6) /* get s,g pkt cnt */
485#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
486 struct sioc_mif_req6) /* get pkt cnt per if */
487#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
488#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
489
490#define IN6_IFF_ANYCAST 0x01 /* anycast address */
491#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
492#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
493#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
494#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
495#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
496 * (used only at first SIOC* call)
497 */
498#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
499#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
500
501#define IN6_IFFBITS \
502 "\020\1ANYCAST\2TENTATIVE\3DUPLICATED\4DETACHED\5DEPRECATED\6NODAD" \
503 "\7AUTOCONF\10TEMPORARY"
504
505
506/* do not input/output */
507#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
508
509#ifdef _KERNEL
510#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
511#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
512#endif
513
514#ifdef _KERNEL
515
516#include <sys/mutex.h>
517#include <sys/pserialize.h>
518
519#include <net/pktqueue.h>
520
521extern pktqueue_t *ip6_pktq;
522
523MALLOC_DECLARE(M_IP6OPT);
524
525extern struct pslist_head in6_ifaddr_list;
526extern kmutex_t in6_ifaddr_lock;
527
528#define IN6_ADDRLIST_ENTRY_INIT(__ia) \
529 PSLIST_ENTRY_INIT((__ia), ia6_pslist_entry)
530#define IN6_ADDRLIST_ENTRY_DESTROY(__ia) \
531 PSLIST_ENTRY_DESTROY((__ia), ia6_pslist_entry)
532#define IN6_ADDRLIST_READER_EMPTY() \
533 (PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
534 ia6_pslist_entry) == NULL)
535#define IN6_ADDRLIST_READER_FIRST() \
536 PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
537 ia6_pslist_entry)
538#define IN6_ADDRLIST_READER_NEXT(__ia) \
539 PSLIST_READER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry)
540#define IN6_ADDRLIST_READER_FOREACH(__ia) \
541 PSLIST_READER_FOREACH((__ia), &in6_ifaddr_list, \
542 struct in6_ifaddr, ia6_pslist_entry)
543#define IN6_ADDRLIST_WRITER_INSERT_HEAD(__ia) \
544 PSLIST_WRITER_INSERT_HEAD(&in6_ifaddr_list, (__ia), ia6_pslist_entry)
545#define IN6_ADDRLIST_WRITER_REMOVE(__ia) \
546 PSLIST_WRITER_REMOVE((__ia), ia6_pslist_entry)
547#define IN6_ADDRLIST_WRITER_FOREACH(__ia) \
548 PSLIST_WRITER_FOREACH((__ia), &in6_ifaddr_list, struct in6_ifaddr, \
549 ia6_pslist_entry)
550#define IN6_ADDRLIST_WRITER_FIRST() \
551 PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
552 ia6_pslist_entry)
553#define IN6_ADDRLIST_WRITER_NEXT(__ia) \
554 PSLIST_WRITER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry)
555#define IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia, __new) \
556 PSLIST_WRITER_INSERT_AFTER((__ia), (__new), ia6_pslist_entry)
557#define IN6_ADDRLIST_WRITER_EMPTY() \
558 (PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
559 ia6_pslist_entry) == NULL)
560#define IN6_ADDRLIST_WRITER_INSERT_TAIL(__new) \
561 do { \
562 if (IN6_ADDRLIST_WRITER_EMPTY()) { \
563 IN6_ADDRLIST_WRITER_INSERT_HEAD((__new)); \
564 } else { \
565 struct in6_ifaddr *__ia; \
566 IN6_ADDRLIST_WRITER_FOREACH(__ia) { \
567 if (IN6_ADDRLIST_WRITER_NEXT(__ia) == NULL) { \
568 IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia,\
569 (__new)); \
570 break; \
571 } \
572 } \
573 } \
574 } while (0)
575
576#define in6_ifstat_inc(ifp, tag) \
577do { \
578 if (ifp) \
579 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
580} while (/*CONSTCOND*/ 0)
581
582extern const struct in6_addr zeroin6_addr;
583extern const u_char inet6ctlerrmap[];
584extern unsigned long in6_maxmtu;
585extern bool in6_present;
586extern callout_t in6_tmpaddrtimer_ch;
587
588/*
589 * Macro for finding the internet address structure (in6_ifaddr) corresponding
590 * to a given interface (ifnet structure).
591 */
592static inline struct in6_ifaddr *
593in6_get_ia_from_ifp(struct ifnet *ifp)
594{
595 struct ifaddr *ifa;
596
597 IFADDR_READER_FOREACH(ifa, ifp) {
598 if (ifa->ifa_addr->sa_family == AF_INET6)
599 break;
600 }
601 return (struct in6_ifaddr *)ifa;
602}
603
604static inline struct in6_ifaddr *
605in6_get_ia_from_ifp_psref(struct ifnet *ifp, struct psref *psref)
606{
607 struct in6_ifaddr *ia;
608 int s;
609
610 s = pserialize_read_enter();
611 ia = in6_get_ia_from_ifp(ifp);
612 if (ia != NULL)
613 ia6_acquire(ia, psref);
614 pserialize_read_exit(s);
615
616 return ia;
617}
618#endif /* _KERNEL */
619
620/*
621 * Multi-cast membership entry. One for each group/ifp that a PCB
622 * belongs to.
623 */
624struct in6_multi_mship {
625 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
626 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
627};
628
629struct in6_multi {
630 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
631 struct in6_addr in6m_addr; /* IP6 multicast address */
632 struct ifnet *in6m_ifp; /* back pointer to ifnet */
633 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */
634 u_int in6m_refcount; /* # membership claims by sockets */
635 u_int in6m_state; /* state of the membership */
636 int in6m_timer; /* delay to send the 1st report */
637 struct timeval in6m_timer_expire; /* when the timer expires */
638 callout_t in6m_timer_ch;
639};
640
641#define IN6M_TIMER_UNDEF -1
642
643
644#ifdef _KERNEL
645/* flags to in6_update_ifa */
646#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
647
648/*
649 * Structure used by macros below to remember position when stepping through
650 * all of the in6_multi records.
651 */
652struct in6_multistep {
653 struct in6_ifaddr *i_ia;
654 struct in6_multi *i_in6m;
655};
656
657/*
658 * Macros for looking up the in6_multi record for a given IP6 multicast
659 * address on a given interface. If no matching record is found, "in6m"
660 * returns NULL.
661 */
662
663static inline struct in6_multi *
664in6_lookup_multi(struct in6_addr *addr, struct ifnet *ifp)
665{
666 struct in6_multi *in6m;
667 struct in6_ifaddr *ia;
668 int s;
669
670 s = pserialize_read_enter();
671 if ((ia = in6_get_ia_from_ifp(ifp)) == NULL) {
672 pserialize_read_exit(s);
673 return NULL;
674 }
675 LIST_FOREACH(in6m, &ia->ia6_multiaddrs, in6m_entry) {
676 if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, addr))
677 break;
678 }
679 pserialize_read_exit(s);
680 return in6m;
681}
682
683#define IN6_LOOKUP_MULTI(__addr, __ifp, __in6m) \
684/* struct in6_addr __addr; */ \
685/* struct ifnet *__ifp; */ \
686/* struct in6_multi *__in6m; */ \
687do { \
688 (__in6m) = in6_lookup_multi(&(__addr), (__ifp)); \
689} while (/*CONSTCOND*/ 0)
690
691/*
692 * Macro to step through all of the in6_multi records, one at a time.
693 * The current position is remembered in "step", which the caller must
694 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
695 * and get the first record. Both macros return a NULL "in6m" when there
696 * are no remaining records.
697 */
698static inline struct in6_multi *
699in6_next_multi(struct in6_multistep *step)
700{
701 struct in6_multi *in6m;
702
703 if ((in6m = step->i_in6m) != NULL) {
704 step->i_in6m = LIST_NEXT(in6m, in6m_entry);
705 return in6m;
706 }
707 while (step->i_ia != NULL) {
708 in6m = LIST_FIRST(&step->i_ia->ia6_multiaddrs);
709 /* FIXME NOMPSAFE */
710 step->i_ia = IN6_ADDRLIST_READER_NEXT(step->i_ia);
711 if (in6m != NULL) {
712 step->i_in6m = LIST_NEXT(in6m, in6m_entry);
713 break;
714 }
715 }
716 return in6m;
717}
718
719static inline struct in6_multi *
720in6_first_multi(struct in6_multistep *step)
721{
722
723 /* FIXME NOMPSAFE */
724 step->i_ia = IN6_ADDRLIST_READER_FIRST();
725 step->i_in6m = NULL;
726 return in6_next_multi(step);
727}
728
729#define IN6_NEXT_MULTI(__step, __in6m) \
730/* struct in6_multistep __step; */ \
731/* struct in6_multi *__in6m; */ \
732do { \
733 (__in6m) = in6_next_multi(&(__step)); \
734} while (/*CONSTCOND*/ 0)
735
736#define IN6_FIRST_MULTI(__step, __in6m) \
737/* struct in6_multistep __step; */ \
738/* struct in6_multi *__in6m */ \
739do { \
740 (__in6m) = in6_first_multi(&(__step)); \
741} while (/*CONSTCOND*/ 0)
742
743
744#if 0
745/*
746 * Macros for looking up the in6_multi_mship record for a given IP6 multicast
747 * address on a given interface. If no matching record is found, "imm"
748 * returns NULL.
749 */
750static inline struct in6_multi_mship *
751in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp,
752 struct ip6_moptions *imop)
753{
754 struct in6_multi_mship *imm;
755
756 LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) {
757 if (imm->i6mm_maddr->in6m_ifp != ifp)
758 continue;
759 if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr,
760 addr))
761 break;
762 }
763 return imm;
764}
765
766#define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \
767/* struct in6_addr __addr; */ \
768/* struct ifnet *__ifp; */ \
769/* struct ip6_moptions *__imop */ \
770/* struct in6_multi_mship *__imm; */ \
771do { \
772 (__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \
773} while (/*CONSTCOND*/ 0)
774#endif
775
776void in6_init(void);
777
778struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *,
779 int *, int);
780void in6_delmulti(struct in6_multi *);
781struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *,
782 int *, int);
783int in6_leavegroup(struct in6_multi_mship *);
784int in6_mask2len(struct in6_addr *, u_char *);
785int in6_control(struct socket *, u_long, void *, struct ifnet *);
786int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
787 struct in6_ifaddr *, int);
788void in6_purgeaddr(struct ifaddr *);
789void in6_purgeif(struct ifnet *);
790void in6_savemkludge(struct in6_ifaddr *);
791void in6_setmaxmtu (void);
792int in6_if2idlen (struct ifnet *);
793void *in6_domifattach(struct ifnet *);
794void in6_domifdetach(struct ifnet *, void *);
795void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *);
796void in6_ifremlocal(struct ifaddr *);
797void in6_ifaddlocal(struct ifaddr *);
798void in6_createmkludge(struct ifnet *);
799void in6_purgemkludge(struct ifnet *);
800struct in6_ifaddr *
801 in6ifa_ifpforlinklocal(const struct ifnet *, int);
802struct in6_ifaddr *
803 in6ifa_ifpforlinklocal_psref(const struct ifnet *, int, struct psref *);
804struct in6_ifaddr *
805 in6ifa_ifpwithaddr(const struct ifnet *, const struct in6_addr *);
806struct in6_ifaddr *
807 in6ifa_ifpwithaddr_psref(const struct ifnet *, const struct in6_addr *,
808 struct psref *);
809struct in6_ifaddr *in6ifa_ifwithaddr(const struct in6_addr *, uint32_t);
810char *ip6_sprintf(const struct in6_addr *);
811int in6_matchlen(struct in6_addr *, struct in6_addr *);
812int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int);
813void in6_prefixlen2mask(struct in6_addr *, int);
814void in6_purgeprefix(struct ifnet *);
815
816int ip6flow_fastforward(struct mbuf **); /* IPv6 fast forward routine */
817
818int in6_src_ioctl(u_long, void *);
819int in6_is_addr_deprecated(struct sockaddr_in6 *);
820struct in6pcb;
821
822#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable)
823
824#endif /* _KERNEL */
825
826#endif /* !_NETINET6_IN6_VAR_H_ */
827