1 /* $NetBSD: in6_var.h,v 1.47.2.1 2008/10/03 10:31:59 jdc 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 /*
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 struct scope6_id *scope6_id;
95 };
96
97 struct in6_ifaddr {
98 struct ifaddr ia_ifa; /* protocol-independent info */
99 #define ia_ifp ia_ifa.ifa_ifp
100 #define ia_flags ia_ifa.ifa_flags
101 struct sockaddr_in6 ia_addr; /* interface address */
102 struct sockaddr_in6 ia_net; /* network number of interface */
103 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
104 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
105 u_int32_t ia_plen; /* prefix length */
106 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
107 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs;
108 /* list of multicast addresses */
109 int ia6_flags;
110
111 struct in6_addrlifetime ia6_lifetime;
112 time_t ia6_createtime; /* the creation time of this address, which is
113 * currently used for temporary addresses only.
114 */
115 time_t ia6_updatetime;
116
117 /* back pointer to the ND prefix (for autoconfigured addresses only) */
118 struct nd_prefix *ia6_ndpr;
119
120 /* multicast addresses joined from the kernel */
121 LIST_HEAD(, in6_multi_mship) ia6_memberships;
122 };
123
124 /* control structure to manage address selection policy */
125 struct in6_addrpolicy {
126 struct sockaddr_in6 addr; /* prefix address */
127 struct sockaddr_in6 addrmask; /* prefix mask */
128 int preced; /* precedence */
129 int label; /* matching label */
130 u_quad_t use; /* statistics */
131 };
132
133 /*
134 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
135 */
136 struct in6_ifstat {
137 u_quad_t ifs6_in_receive; /* # of total input datagram */
138 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
139 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
140 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
141 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
142 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
143 /* NOTE: increment on final dst if */
144 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
145 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
146 /* NOTE: fragment timeout is not here */
147 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
148 /* NOTE: increment on final dst if */
149 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
150 /* NOTE: increment on outgoing if */
151 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
152 /* NOTE: does not include forwrads */
153 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
154 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
155 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
156 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
157 /* NOTE: this is # after fragment */
158 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
159 /* NOTE: increment on final dst if */
160 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
161 /* NOTE: this is # after reass */
162 /* NOTE: increment on final dst if */
163 u_quad_t ifs6_reass_fail; /* # of reass failures */
164 /* NOTE: may not be packet count */
165 /* NOTE: increment on final dst if */
166 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
167 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
168 };
169
170 /*
171 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
172 * XXX: I'm not sure if this file is the right place for this structure...
173 */
174 struct icmp6_ifstat {
175 /*
176 * Input statistics
177 */
178 /* ipv6IfIcmpInMsgs, total # of input messages */
179 u_quad_t ifs6_in_msg;
180 /* ipv6IfIcmpInErrors, # of input error messages */
181 u_quad_t ifs6_in_error;
182 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
183 u_quad_t ifs6_in_dstunreach;
184 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
185 u_quad_t ifs6_in_adminprohib;
186 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
187 u_quad_t ifs6_in_timeexceed;
188 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
189 u_quad_t ifs6_in_paramprob;
190 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
191 u_quad_t ifs6_in_pkttoobig;
192 /* ipv6IfIcmpInEchos, # of input echo requests */
193 u_quad_t ifs6_in_echo;
194 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
195 u_quad_t ifs6_in_echoreply;
196 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
197 u_quad_t ifs6_in_routersolicit;
198 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
199 u_quad_t ifs6_in_routeradvert;
200 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
201 u_quad_t ifs6_in_neighborsolicit;
202 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
203 u_quad_t ifs6_in_neighboradvert;
204 /* ipv6IfIcmpInRedirects, # of input redirects */
205 u_quad_t ifs6_in_redirect;
206 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
207 u_quad_t ifs6_in_mldquery;
208 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
209 u_quad_t ifs6_in_mldreport;
210 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
211 u_quad_t ifs6_in_mlddone;
212
213 /*
214 * Output statistics. We should solve unresolved routing problem...
215 */
216 /* ipv6IfIcmpOutMsgs, total # of output messages */
217 u_quad_t ifs6_out_msg;
218 /* ipv6IfIcmpOutErrors, # of output error messages */
219 u_quad_t ifs6_out_error;
220 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
221 u_quad_t ifs6_out_dstunreach;
222 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
223 u_quad_t ifs6_out_adminprohib;
224 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
225 u_quad_t ifs6_out_timeexceed;
226 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
227 u_quad_t ifs6_out_paramprob;
228 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
229 u_quad_t ifs6_out_pkttoobig;
230 /* ipv6IfIcmpOutEchos, # of output echo requests */
231 u_quad_t ifs6_out_echo;
232 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
233 u_quad_t ifs6_out_echoreply;
234 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
235 u_quad_t ifs6_out_routersolicit;
236 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
237 u_quad_t ifs6_out_routeradvert;
238 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
239 u_quad_t ifs6_out_neighborsolicit;
240 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
241 u_quad_t ifs6_out_neighboradvert;
242 /* ipv6IfIcmpOutRedirects, # of output redirects */
243 u_quad_t ifs6_out_redirect;
244 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
245 u_quad_t ifs6_out_mldquery;
246 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
247 u_quad_t ifs6_out_mldreport;
248 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
249 u_quad_t ifs6_out_mlddone;
250 };
251
252 struct in6_ifreq {
253 char ifr_name[IFNAMSIZ];
254 union {
255 struct sockaddr_in6 ifru_addr;
256 struct sockaddr_in6 ifru_dstaddr;
257 short ifru_flags;
258 int ifru_flags6;
259 int ifru_metric;
260 caddr_t ifru_data;
261 struct in6_addrlifetime ifru_lifetime;
262 struct in6_ifstat ifru_stat;
263 struct icmp6_ifstat ifru_icmp6stat;
264 } ifr_ifru;
265 };
266
267 struct in6_aliasreq {
268 char ifra_name[IFNAMSIZ];
269 struct sockaddr_in6 ifra_addr;
270 struct sockaddr_in6 ifra_dstaddr;
271 struct sockaddr_in6 ifra_prefixmask;
272 int ifra_flags;
273 struct in6_addrlifetime ifra_lifetime;
274 };
275
276 /* prefix type macro */
277 #define IN6_PREFIX_ND 1
278 #define IN6_PREFIX_RR 2
279
280 /*
281 * prefix related flags passed between kernel(NDP related part) and
282 * user land command(ifconfig) and daemon(rtadvd).
283 * Note: We originally intended to use prf_ra{} only within in6_prflags{}, but
284 * it was (probably unintentionally) used in nd6.h as well. Since C++ does
285 * not allow such a reference, prf_ra{} was then moved outside. In general,
286 * however, this structure should not be used directly.
287 */
288 struct prf_ra {
289 u_int32_t onlink : 1;
290 u_int32_t autonomous : 1;
291 u_int32_t router : 1;
292 u_int32_t reserved : 5;
293 };
294
295 struct in6_prflags {
296 struct prf_ra prf_ra;
297 u_char prf_reserved1;
298 u_short prf_reserved2;
299 /* want to put this on 4byte offset */
300 struct prf_rr {
301 u_int32_t decrvalid : 1;
302 u_int32_t decrprefd : 1;
303 u_int32_t reserved : 6;
304 } prf_rr;
305 u_char prf_reserved3;
306 u_short prf_reserved4;
307 };
308
309 struct in6_prefixreq {
310 char ipr_name[IFNAMSIZ];
311 u_char ipr_origin;
312 u_char ipr_plen;
313 u_int32_t ipr_vltime;
314 u_int32_t ipr_pltime;
315 struct in6_prflags ipr_flags;
316 struct sockaddr_in6 ipr_prefix;
317 };
318
319 #define PR_ORIG_RA 0
320 #define PR_ORIG_RR 1
321 #define PR_ORIG_STATIC 2
322 #define PR_ORIG_KERNEL 3
323
324 #define ipr_raf_onlink ipr_flags.prf_ra.onlink
325 #define ipr_raf_auto ipr_flags.prf_ra.autonomous
326
327 #define ipr_statef_onlink ipr_flags.prf_state.onlink
328
329 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
330 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
331
332 struct in6_rrenumreq {
333 char irr_name[IFNAMSIZ];
334 u_char irr_origin;
335 u_char irr_m_len; /* match len for matchprefix */
336 u_char irr_m_minlen; /* minlen for matching prefix */
337 u_char irr_m_maxlen; /* maxlen for matching prefix */
338 u_char irr_u_uselen; /* uselen for adding prefix */
339 u_char irr_u_keeplen; /* keeplen from matching prefix */
340 struct irr_raflagmask {
341 u_int32_t onlink : 1;
342 u_int32_t autonomous : 1;
343 u_int32_t reserved : 6;
344 } irr_raflagmask;
345 u_int32_t irr_vltime;
346 u_int32_t irr_pltime;
347 struct in6_prflags irr_flags;
348 struct sockaddr_in6 irr_matchprefix;
349 struct sockaddr_in6 irr_useprefix;
350 };
351
352 #define irr_raf_mask_onlink irr_raflagmask.onlink
353 #define irr_raf_mask_auto irr_raflagmask.autonomous
354 #define irr_raf_mask_reserved irr_raflagmask.reserved
355
356 #define irr_raf_onlink irr_flags.prf_ra.onlink
357 #define irr_raf_auto irr_flags.prf_ra.autonomous
358
359 #define irr_statef_onlink irr_flags.prf_state.onlink
360
361 #define irr_rrf irr_flags.prf_rr
362 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
363 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
364
365 /*
366 * Given a pointer to an in6_ifaddr (ifaddr),
367 * return a pointer to the addr as a sockaddr_in6
368 */
369 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
370 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
371 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
372 #define IA6_SIN6(ia) (&((ia)->ia_addr))
373 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
374 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
375 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
376
377 #ifdef _KERNEL
378 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
379 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
380 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
381 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
382 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
383 #endif
384
385 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
386 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
387
388 #ifdef _KERNEL
389 /*
390 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
391 * we do not shift numbers for binary compatibility.
392 */
393 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
394 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
395 #endif
396
397 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
398 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
399
400 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
401 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
402
403 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
404 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
405 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
406
407 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
408
409 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
410 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist)
411 #ifdef _KERNEL
412 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
413 #endif
414 #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
415 #define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq)
416 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
417 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
418 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
419 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
420
421 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
422 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
423 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
424 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
425
426 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
427 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
428
429 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
430
431 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
432 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
433 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
434 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
435 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
436 struct in6_rrenumreq) /* change */
437 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
438 struct in6_rrenumreq) /* set global */
439
440 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
441 struct sioc_sg_req6) /* get s,g pkt cnt */
442 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
443 struct sioc_mif_req6) /* get pkt cnt per if */
444 #define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
445 #define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
446
447 #define IN6_IFF_ANYCAST 0x01 /* anycast address */
448 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */
449 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
450 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
451 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
452 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
453 * (used only at first SIOC* call)
454 */
455 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
456 #define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
457
458 /* do not input/output */
459 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
460
461 #ifdef _KERNEL
462 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
463 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
464 #endif
465
466 #ifdef _KERNEL
467 MALLOC_DECLARE(M_IP6OPT);
468
469 extern struct in6_ifaddr *in6_ifaddr;
470
471 extern struct icmp6stat icmp6stat;
472 #define in6_ifstat_inc(ifp, tag) \
473 do { \
474 if (ifp) \
475 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
476 } while (/*CONSTCOND*/ 0)
477
478 extern struct ifqueue ip6intrq; /* IP6 packet input queue */
479 extern struct in6_addr zeroin6_addr;
480 extern u_char inet6ctlerrmap[];
481 extern unsigned long in6_maxmtu;
482
483 /*
484 * Macro for finding the internet address structure (in6_ifaddr) corresponding
485 * to a given interface (ifnet structure).
486 */
487
488 #define IFP_TO_IA6(ifp, ia) \
489 /* struct ifnet *ifp; */ \
490 /* struct in6_ifaddr *ia; */ \
491 do { \
492 struct ifaddr *_ifa; \
493 TAILQ_FOREACH(_ifa, &(ifp)->if_addrlist, ifa_list) { \
494 if (!_ifa->ifa_addr) \
495 continue; \
496 if (_ifa->ifa_addr->sa_family == AF_INET6) \
497 break; \
498 } \
499 (ia) = (struct in6_ifaddr *)_ifa; \
500 } while (/*CONSTCOND*/ 0)
501
502 #endif /* _KERNEL */
503
504 /*
505 * Multi-cast membership entry. One for each group/ifp that a PCB
506 * belongs to.
507 */
508 struct in6_multi_mship {
509 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
510 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
511 };
512
513 struct in6_multi {
514 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
515 struct in6_addr in6m_addr; /* IP6 multicast address */
516 struct ifnet *in6m_ifp; /* back pointer to ifnet */
517 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */
518 u_int in6m_refcount; /* # membership claims by sockets */
519 u_int in6m_state; /* state of the membership */
520 int in6m_timer; /* delay to send the 1st report */
521 struct timeval in6m_timer_expire; /* when the timer expires */
522 struct callout *in6m_timer_ch;
523 };
524
525 #define IN6M_TIMER_UNDEF -1
526
527
528 #ifdef _KERNEL
529 /* flags to in6_update_ifa */
530 #define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
531
532 /*
533 * Structure used by macros below to remember position when stepping through
534 * all of the in6_multi records.
535 */
536 struct in6_multistep {
537 struct in6_ifaddr *i_ia;
538 struct in6_multi *i_in6m;
539 };
540
541 /*
542 * Macros for looking up the in6_multi record for a given IP6 multicast
543 * address on a given interface. If no matching record is found, "in6m"
544 * returns NULL.
545 */
546
547 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
548 /* struct in6_addr addr; */ \
549 /* struct ifnet *ifp; */ \
550 /* struct in6_multi *in6m; */ \
551 do { \
552 struct in6_ifaddr *_ia; \
553 \
554 IFP_TO_IA6((ifp), _ia); \
555 if (_ia == NULL) \
556 (in6m) = NULL; \
557 else \
558 for ((in6m) = _ia->ia6_multiaddrs.lh_first; \
559 (in6m) != NULL && \
560 !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \
561 (in6m) = (in6m)->in6m_entry.le_next) \
562 continue; \
563 } while (/*CONSTCOND*/ 0)
564
565 /*
566 * Macro to step through all of the in6_multi records, one at a time.
567 * The current position is remembered in "step", which the caller must
568 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
569 * and get the first record. Both macros return a NULL "in6m" when there
570 * are no remaining records.
571 */
572 #define IN6_NEXT_MULTI(step, in6m) \
573 /* struct in6_multistep step; */ \
574 /* struct in6_multi *in6m; */ \
575 do { \
576 if (((in6m) = (step).i_in6m) != NULL) \
577 (step).i_in6m = (in6m)->in6m_entry.le_next; \
578 else \
579 while ((step).i_ia != NULL) { \
580 (in6m) = (step).i_ia->ia6_multiaddrs.lh_first; \
581 (step).i_ia = (step).i_ia->ia_next; \
582 if ((in6m) != NULL) { \
583 (step).i_in6m = (in6m)->in6m_entry.le_next; \
584 break; \
585 } \
586 } \
587 } while (/*CONSTCOND*/ 0)
588
589 #define IN6_FIRST_MULTI(step, in6m) \
590 /* struct in6_multistep step; */ \
591 /* struct in6_multi *in6m */ \
592 do { \
593 (step).i_ia = in6_ifaddr; \
594 (step).i_in6m = NULL; \
595 IN6_NEXT_MULTI((step), (in6m)); \
596 } while (/*CONSTCOND*/ 0)
597
598
599 /*
600 * Macros for looking up the in6_multi_mship record for a given IP6 multicast
601 * address on a given interface. If no matching record is found, "imm"
602 * returns NULL.
603 */
604 #define IN6_LOOKUP_MSHIP(addr, ifp, imop, imm) \
605 /* struct in6_addr addr; */ \
606 /* struct ifnet *ifp; */ \
607 /* struct ip6_moptions *imop */ \
608 /* struct in6_multi_mship *imm; */ \
609 do { \
610 for ((imm) = (imop)->im6o_memberships.lh_first; \
611 (imm) != NULL; (imm) = (imm)->i6mm_chain.le_next) { \
612 if ((imm)->i6mm_maddr->in6m_ifp != (ifp)) \
613 continue; \
614 if (!IN6_ARE_ADDR_EQUAL(&(imm)->i6mm_maddr->in6m_addr, \
615 &(addr))) \
616 continue; \
617 break; \
618 } \
619 } while (/*CONSTCOND*/ 0)
620
621 struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *,
622 int *, int));
623 void in6_delmulti __P((struct in6_multi *));
624 struct in6_multi_mship *in6_joingroup __P((struct ifnet *, struct in6_addr *,
625 int *, int));
626 int in6_leavegroup __P((struct in6_multi_mship *));
627 int in6_mask2len __P((struct in6_addr *, u_char *));
628 int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *,
629 struct lwp *));
630 int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *,
631 struct in6_ifaddr *, int));
632 void in6_purgeaddr __P((struct ifaddr *));
633 int in6if_do_dad __P((struct ifnet *));
634 void in6_purgeif __P((struct ifnet *));
635 void in6_savemkludge __P((struct in6_ifaddr *));
636 void in6_setmaxmtu __P((void));
637 int in6_if2idlen __P((struct ifnet *));
638 void *in6_domifattach __P((struct ifnet *));
639 void in6_domifdetach __P((struct ifnet *, void *));
640 void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *));
641 void in6_ifremloop(struct ifaddr *);
642 void in6_ifaddloop(struct ifaddr *);
643 void in6_createmkludge __P((struct ifnet *));
644 void in6_purgemkludge __P((struct ifnet *));
645 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int));
646 struct in6_ifaddr *in6ifa_ifplocaladdr __P((const struct ifnet *,
647 const struct in6_addr *));
648 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *));
649 char *ip6_sprintf __P((const struct in6_addr *));
650 int in6_matchlen __P((struct in6_addr *, struct in6_addr *));
651 int in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int));
652 void in6_prefixlen2mask __P((struct in6_addr *, int));
653 void in6_purgeprefix __P((struct ifnet *));
654
655 int in6_src_ioctl __P((u_long, caddr_t));
656 int in6_is_addr_deprecated __P((struct sockaddr_in6 *));
657 struct in6pcb;
658 #endif /* _KERNEL */
659
660 #endif /* !_NETINET6_IN6_VAR_H_ */
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