1 /* $OpenBSD: in6_var.h,v 1.28 2006/07/06 02:56:58 brad Exp $ */
2 /* $KAME: in6_var.h,v 1.55 2001/02/16 12:49:45 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 /*
68 * Interface address, Internet version. One of these structures
69 * is allocated for each interface with an Internet address.
70 * The ifaddr structure contains the protocol-independent part
71 * of the structure and is assumed to be first.
72 */
73
74 /*
75 * pltime/vltime are just for future reference (required to implements 2
76 * hour rule for hosts). they should never be modified by nd6_timeout or
77 * anywhere else.
78 * userland -> kernel: accept pltime/vltime
79 * kernel -> userland: throw up everything
80 * in kernel: modify preferred/expire only
81 */
82 struct in6_addrlifetime {
83 time_t ia6t_expire; /* valid lifetime expiration time */
84 time_t ia6t_preferred; /* preferred lifetime expiration time */
85 u_int32_t ia6t_vltime; /* valid lifetime */
86 u_int32_t ia6t_pltime; /* prefix lifetime */
87 };
88
89 struct nd_ifinfo;
90 struct in6_ifextra {
91 struct in6_ifstat *in6_ifstat;
92 struct icmp6_ifstat *icmp6_ifstat;
93 struct nd_ifinfo *nd_ifinfo;
94 };
95
96 struct in6_ifaddr {
97 struct ifaddr ia_ifa; /* protocol-independent info */
98 #define ia_ifp ia_ifa.ifa_ifp
99 #define ia_flags ia_ifa.ifa_flags
100 struct sockaddr_in6 ia_addr; /* interface address */
101 struct sockaddr_in6 ia_net; /* network number of interface */
102 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
103 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
104 u_int32_t ia_plen; /* prefix length */
105 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
106 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs;
107 /* list of multicast addresses */
108 int ia6_flags;
109
110 struct in6_addrlifetime ia6_lifetime;
111 time_t ia6_createtime; /* the creation time of this address, which is
112 * currently used for temporary addresses only.
113 */
114 time_t ia6_updatetime;
115
116 /* back pointer to the ND prefix (for autoconfigured addresses only) */
117 struct nd_prefix *ia6_ndpr;
118
119 /* multicast addresses joined from the kernel */
120 LIST_HEAD(, in6_multi_mship) ia6_memberships;
121 };
122
123 /*
124 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
125 */
126 struct in6_ifstat {
127 u_int64_t ifs6_in_receive; /* # of total input datagram */
128 u_int64_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
129 u_int64_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
130 u_int64_t ifs6_in_noroute; /* # of datagrams with no route */
131 u_int64_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
132 u_int64_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
133 /* NOTE: increment on final dst if */
134 u_int64_t ifs6_in_truncated; /* # of truncated datagrams */
135 u_int64_t ifs6_in_discard; /* # of discarded datagrams */
136 /* NOTE: fragment timeout is not here */
137 u_int64_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
138 /* NOTE: increment on final dst if */
139 u_int64_t ifs6_out_forward; /* # of datagrams forwarded */
140 /* NOTE: increment on outgoing if */
141 u_int64_t ifs6_out_request; /* # of outgoing datagrams from ULP */
142 /* NOTE: does not include forwrads */
143 u_int64_t ifs6_out_discard; /* # of discarded datagrams */
144 u_int64_t ifs6_out_fragok; /* # of datagrams fragmented */
145 u_int64_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
146 u_int64_t ifs6_out_fragcreat; /* # of fragment datagrams */
147 /* NOTE: this is # after fragment */
148 u_int64_t ifs6_reass_reqd; /* # of incoming fragmented packets */
149 /* NOTE: increment on final dst if */
150 u_int64_t ifs6_reass_ok; /* # of reassembled packets */
151 /* NOTE: this is # after reass */
152 /* NOTE: increment on final dst if */
153 u_int64_t ifs6_reass_fail; /* # of reass failures */
154 /* NOTE: may not be packet count */
155 /* NOTE: increment on final dst if */
156 u_int64_t ifs6_in_mcast; /* # of inbound multicast datagrams */
157 u_int64_t ifs6_out_mcast; /* # of outbound multicast datagrams */
158 };
159
160 /*
161 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
162 * XXX: I'm not sure if this file is the right place for this structure...
163 */
164 struct icmp6_ifstat {
165 /*
166 * Input statistics
167 */
168 /* ipv6IfIcmpInMsgs, total # of input messages */
169 u_int64_t ifs6_in_msg;
170 /* ipv6IfIcmpInErrors, # of input error messages */
171 u_int64_t ifs6_in_error;
172 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
173 u_int64_t ifs6_in_dstunreach;
174 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
175 u_int64_t ifs6_in_adminprohib;
176 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
177 u_int64_t ifs6_in_timeexceed;
178 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
179 u_int64_t ifs6_in_paramprob;
180 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
181 u_int64_t ifs6_in_pkttoobig;
182 /* ipv6IfIcmpInEchos, # of input echo requests */
183 u_int64_t ifs6_in_echo;
184 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
185 u_int64_t ifs6_in_echoreply;
186 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
187 u_int64_t ifs6_in_routersolicit;
188 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
189 u_int64_t ifs6_in_routeradvert;
190 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
191 u_int64_t ifs6_in_neighborsolicit;
192 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
193 u_int64_t ifs6_in_neighboradvert;
194 /* ipv6IfIcmpInRedirects, # of input redirects */
195 u_int64_t ifs6_in_redirect;
196 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
197 u_int64_t ifs6_in_mldquery;
198 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
199 u_int64_t ifs6_in_mldreport;
200 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
201 u_int64_t ifs6_in_mlddone;
202
203 /*
204 * Output statistics. We should solve unresolved routing problem...
205 */
206 /* ipv6IfIcmpOutMsgs, total # of output messages */
207 u_int64_t ifs6_out_msg;
208 /* ipv6IfIcmpOutErrors, # of output error messages */
209 u_int64_t ifs6_out_error;
210 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
211 u_int64_t ifs6_out_dstunreach;
212 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
213 u_int64_t ifs6_out_adminprohib;
214 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
215 u_int64_t ifs6_out_timeexceed;
216 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
217 u_int64_t ifs6_out_paramprob;
218 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
219 u_int64_t ifs6_out_pkttoobig;
220 /* ipv6IfIcmpOutEchos, # of output echo requests */
221 u_int64_t ifs6_out_echo;
222 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
223 u_int64_t ifs6_out_echoreply;
224 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
225 u_int64_t ifs6_out_routersolicit;
226 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
227 u_int64_t ifs6_out_routeradvert;
228 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
229 u_int64_t ifs6_out_neighborsolicit;
230 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
231 u_int64_t ifs6_out_neighboradvert;
232 /* ipv6IfIcmpOutRedirects, # of output redirects */
233 u_int64_t ifs6_out_redirect;
234 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
235 u_int64_t ifs6_out_mldquery;
236 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
237 u_int64_t ifs6_out_mldreport;
238 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
239 u_int64_t ifs6_out_mlddone;
240 };
241
242 struct in6_ifreq {
243 char ifr_name[IFNAMSIZ];
244 union {
245 struct sockaddr_in6 ifru_addr;
246 struct sockaddr_in6 ifru_dstaddr;
247 short ifru_flags;
248 int ifru_flags6;
249 int ifru_metric;
250 caddr_t ifru_data;
251 struct in6_addrlifetime ifru_lifetime;
252 struct in6_ifstat ifru_stat;
253 struct icmp6_ifstat ifru_icmp6stat;
254 } ifr_ifru;
255 };
256
257 struct in6_aliasreq {
258 char ifra_name[IFNAMSIZ];
259 struct sockaddr_in6 ifra_addr;
260 struct sockaddr_in6 ifra_dstaddr;
261 struct sockaddr_in6 ifra_prefixmask;
262 int ifra_flags;
263 struct in6_addrlifetime ifra_lifetime;
264 };
265
266 /* prefix type macro */
267 #define IN6_PREFIX_ND 1
268 #define IN6_PREFIX_RR 2
269
270 /*
271 * prefix related flags passed between kernel(NDP related part) and
272 * user land command(ifconfig) and daemon(rtadvd).
273 */
274 struct prf_ra {
275 u_int onlink : 1;
276 u_int autonomous : 1;
277 u_int router : 1;
278 u_int reserved : 5;
279 };
280
281 struct in6_prflags {
282 struct prf_ra prf_ra;
283 u_char prf_reserved1;
284 u_short prf_reserved2;
285 /* want to put this on 4byte offset */
286 struct prf_rr {
287 u_int decrvalid : 1;
288 u_int decrprefd : 1;
289 u_int reserved : 6;
290 } prf_rr;
291 u_char prf_reserved3;
292 u_short prf_reserved4;
293 };
294
295 struct in6_prefixreq {
296 char ipr_name[IFNAMSIZ];
297 u_char ipr_origin;
298 u_char ipr_plen;
299 u_int32_t ipr_vltime;
300 u_int32_t ipr_pltime;
301 struct in6_prflags ipr_flags;
302 struct sockaddr_in6 ipr_prefix;
303 };
304
305 #define PR_ORIG_RA 0
306 #define PR_ORIG_RR 1
307 #define PR_ORIG_STATIC 2
308 #define PR_ORIG_KERNEL 3
309
310 #define ipr_raf_onlink ipr_flags.prf_ra.onlink
311 #define ipr_raf_auto ipr_flags.prf_ra.autonomous
312
313 #define ipr_statef_onlink ipr_flags.prf_state.onlink
314
315 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
316 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
317
318 struct in6_rrenumreq {
319 char irr_name[IFNAMSIZ];
320 u_char irr_origin;
321 u_char irr_m_len; /* match len for matchprefix */
322 u_char irr_m_minlen; /* minlen for matching prefix */
323 u_char irr_m_maxlen; /* maxlen for matching prefix */
324 u_char irr_u_uselen; /* uselen for adding prefix */
325 u_char irr_u_keeplen; /* keeplen from matching prefix */
326 struct irr_raflagmask {
327 u_int onlink : 1;
328 u_int autonomous : 1;
329 u_int reserved : 6;
330 } irr_raflagmask;
331 u_int32_t irr_vltime;
332 u_int32_t irr_pltime;
333 struct in6_prflags irr_flags;
334 struct sockaddr_in6 irr_matchprefix;
335 struct sockaddr_in6 irr_useprefix;
336 };
337
338 #define irr_raf_mask_onlink irr_raflagmask.onlink
339 #define irr_raf_mask_auto irr_raflagmask.autonomous
340 #define irr_raf_mask_reserved irr_raflagmask.reserved
341
342 #define irr_raf_onlink irr_flags.prf_ra.onlink
343 #define irr_raf_auto irr_flags.prf_ra.autonomous
344
345 #define irr_statef_onlink irr_flags.prf_state.onlink
346
347 #define irr_rrf irr_flags.prf_rr
348 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
349 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
350
351 /*
352 * Given a pointer to an in6_ifaddr (ifaddr),
353 * return a pointer to the addr as a sockaddr_in6
354 */
355 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
356 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
357 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
358 #define IA6_SIN6(ia) (&((ia)->ia_addr))
359 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
360 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
361 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
362
363 #ifdef _KERNEL
364 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
365 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
366 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
367 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
368 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
369 #endif
370
371 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
372 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
373
374 #ifdef _KERNEL
375 /*
376 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
377 * we do not shift numbers for binary compatibility.
378 */
379 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
380 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
381 #endif
382
383 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
384 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
385
386 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
387 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
388
389 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
390 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
391 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
392
393 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
394
395 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
396 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist)
397 #ifdef _KERNEL
398 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
399 #endif
400 #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
401 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
402 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
403 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
404 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
405
406 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
407 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
408 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
409 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
410
411 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
412 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
413
414 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
415
416 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
417 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
418 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
419 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
420 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
421 struct in6_rrenumreq) /* change */
422 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
423 struct in6_rrenumreq) /* set global */
424
425 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
426 struct sioc_sg_req6) /* get s,g pkt cnt */
427 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
428 struct sioc_mif_req6) /* get pkt cnt per if */
429
430 #define IN6_IFF_ANYCAST 0x01 /* anycast address */
431 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */
432 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
433 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
434 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
435 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
436 * (used only at first SIOC* call)
437 */
438 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
439
440 /* do not input/output */
441 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
442
443 #ifdef _KERNEL
444 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
445 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
446 #endif
447
448 #ifdef _KERNEL
449 extern struct in6_ifaddr *in6_ifaddr;
450
451 extern struct icmp6stat icmp6stat;
452 #define in6_ifstat_inc(ifp, tag) \
453 do { \
454 if (ifp) \
455 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
456 } while (0)
457
458 extern struct ifqueue ip6intrq; /* IP6 packet input queue */
459 extern struct in6_addr zeroin6_addr;
460 extern u_char inet6ctlerrmap[];
461 extern unsigned long in6_maxmtu;
462
463 /*
464 * Macro for finding the internet address structure (in6_ifaddr) corresponding
465 * to a given interface (ifnet structure).
466 */
467 #define IFP_TO_IA6(ifp, ia) \
468 /* struct ifnet *ifp; */ \
469 /* struct in6_ifaddr *ia; */ \
470 do { \
471 struct ifaddr *ifa; \
472 TAILQ_FOREACH(ifa, &(ifp)->if_addrlist, ifa_list) { \
473 if (!ifa->ifa_addr) \
474 continue; \
475 if (ifa->ifa_addr->sa_family == AF_INET6) \
476 break; \
477 } \
478 (ia) = (struct in6_ifaddr *)ifa; \
479 } while (0)
480 #endif /* _KERNEL */
481
482 /*
483 * Multi-cast membership entry. One for each group/ifp that a PCB
484 * belongs to.
485 */
486 struct in6_multi_mship {
487 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
488 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
489 };
490
491 struct in6_multi {
492 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
493 struct in6_addr in6m_addr; /* IP6 multicast address */
494 struct ifnet *in6m_ifp; /* back pointer to ifnet */
495 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */
496 u_int in6m_refcount; /* # membership claims by sockets */
497 u_int in6m_state; /* state of the membership */
498 u_int in6m_timer; /* MLD6 listener report timer */
499 };
500
501 #ifdef _KERNEL
502 /*
503 * Structure used by macros below to remember position when stepping through
504 * all of the in6_multi records.
505 */
506 struct in6_multistep {
507 struct in6_ifaddr *i_ia;
508 struct in6_multi *i_in6m;
509 };
510
511 /*
512 * Macros for looking up the in6_multi record for a given IP6 multicast
513 * address on a given interface. If no matching record is found, "in6m"
514 * returns NLL.
515 */
516
517 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
518 /* struct in6_addr addr; */ \
519 /* struct ifnet *ifp; */ \
520 /* struct in6_multi *in6m; */ \
521 do { \
522 struct in6_ifaddr *ia; \
523 \
524 IFP_TO_IA6((ifp), ia); \
525 if (ia == NULL) \
526 (in6m) = NULL; \
527 else \
528 for ((in6m) = LIST_FIRST(&ia->ia6_multiaddrs); \
529 (in6m) != LIST_END(&ia->ia6_multiaddrs) && \
530 !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \
531 (in6m) = LIST_NEXT((in6m), in6m_entry)) \
532 continue; \
533 } while (0)
534
535 /*
536 * Macro to step through all of the in6_multi records, one at a time.
537 * The current position is remembered in "step", which the caller must
538 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
539 * and get the first record. Both macros return a NULL "in6m" when there
540 * are no remaining records.
541 */
542 #define IN6_NEXT_MULTI(step, in6m) \
543 /* struct in6_multistep step; */ \
544 /* struct in6_multi *in6m; */ \
545 do { \
546 if (((in6m) = (step).i_in6m) != NULL) \
547 (step).i_in6m = LIST_NEXT((in6m), in6m_entry); \
548 else \
549 while ((step).i_ia != NULL) { \
550 (in6m) = LIST_FIRST(&(step).i_ia->ia6_multiaddrs); \
551 (step).i_ia = (step).i_ia->ia_next; \
552 if ((in6m) != NULL) { \
553 (step).i_in6m = LIST_NEXT((in6m), in6m_entry); \
554 break; \
555 } \
556 } \
557 } while (0)
558
559 #define IN6_FIRST_MULTI(step, in6m) \
560 /* struct in6_multistep step; */ \
561 /* struct in6_multi *in6m */ \
562 do { \
563 (step).i_ia = in6_ifaddr; \
564 (step).i_in6m = NULL; \
565 IN6_NEXT_MULTI((step), (in6m)); \
566 } while (0)
567
568 struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, int *);
569 void in6_delmulti(struct in6_multi *);
570 struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *);
571 int in6_leavegroup(struct in6_multi_mship *);
572 int in6_mask2len(struct in6_addr *, u_char *);
573 int in6_control(struct socket *, u_long, caddr_t, struct ifnet *,
574 struct proc *);
575 int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
576 struct in6_ifaddr *);
577 void in6_purgeaddr(struct ifaddr *);
578 int in6if_do_dad(struct ifnet *);
579 void in6_purgeif(struct ifnet *);
580 void in6_savemkludge(struct in6_ifaddr *);
581 void in6_setmaxmtu(void);
582 void *in6_domifattach(struct ifnet *);
583 void in6_domifdetach(struct ifnet *, void *);
584 void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *);
585 void in6_createmkludge(struct ifnet *);
586 void in6_purgemkludge(struct ifnet *);
587 struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int);
588 struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, struct in6_addr *);
589 char *ip6_sprintf(struct in6_addr *);
590 int in6_addr2scopeid(struct ifnet *, struct in6_addr *);
591 int in6_matchlen(struct in6_addr *, struct in6_addr *);
592 int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int);
593 void in6_prefixlen2mask(struct in6_addr *, int);
594 void in6_purgeprefix(struct ifnet *);
595 void in6_ifaddloop(struct ifaddr *);
596 void in6_ifremloop(struct ifaddr *);
597
598 int in6_is_addr_deprecated(struct sockaddr_in6 *);
599 struct inpcb;
600 int in6_embedscope(struct in6_addr *, const struct sockaddr_in6 *,
601 struct inpcb *, struct ifnet **);
602 int in6_recoverscope(struct sockaddr_in6 *, const struct in6_addr *,
603 struct ifnet *);
604 void in6_clearscope(struct in6_addr *);
605 #endif /* _KERNEL */
606
607 #endif /* _NETINET6_IN6_VAR_H_ */