1 /* $NetBSD: in6_var.h,v 1.60 2008/08/20 18:35:20 matt 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
69 /*
70 * Interface address, Internet version. One of these structures
71 * is allocated for each interface with an Internet address.
72 * The ifaddr structure contains the protocol-independent part
73 * of the structure and is assumed to be first.
74 */
75
76 /*
77 * pltime/vltime are just for future reference (required to implements 2
78 * hour rule for hosts). they should never be modified by nd6_timeout or
79 * anywhere else.
80 * userland -> kernel: accept pltime/vltime
81 * kernel -> userland: throw up everything
82 * in kernel: modify preferred/expire only
83 */
84 struct in6_addrlifetime {
85 time_t ia6t_expire; /* valid lifetime expiration time */
86 time_t ia6t_preferred; /* preferred lifetime expiration time */
87 u_int32_t ia6t_vltime; /* valid lifetime */
88 u_int32_t ia6t_pltime; /* prefix lifetime */
89 };
90
91 struct nd_ifinfo;
92 struct in6_ifextra {
93 struct in6_ifstat *in6_ifstat;
94 struct icmp6_ifstat *icmp6_ifstat;
95 struct nd_ifinfo *nd_ifinfo;
96 struct scope6_id *scope6_id;
97 };
98
99 struct in6_ifaddr {
100 struct ifaddr ia_ifa; /* protocol-independent info */
101 #define ia_ifp ia_ifa.ifa_ifp
102 #define ia_flags ia_ifa.ifa_flags
103 struct sockaddr_in6 ia_addr; /* interface address */
104 struct sockaddr_in6 ia_net; /* network number of interface */
105 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
106 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
107 u_int32_t ia_plen; /* prefix length */
108 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
109 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs;
110 /* list of multicast addresses */
111 int ia6_flags;
112
113 struct in6_addrlifetime ia6_lifetime;
114 time_t ia6_createtime; /* the creation time of this address, which is
115 * currently used for temporary addresses only.
116 */
117 time_t ia6_updatetime;
118
119 /* back pointer to the ND prefix (for autoconfigured addresses only) */
120 struct nd_prefix *ia6_ndpr;
121
122 /* multicast addresses joined from the kernel */
123 LIST_HEAD(, in6_multi_mship) ia6_memberships;
124 };
125
126 /* control structure to manage address selection policy */
127 struct in6_addrpolicy {
128 struct sockaddr_in6 addr; /* prefix address */
129 struct sockaddr_in6 addrmask; /* prefix mask */
130 int preced; /* precedence */
131 int label; /* matching label */
132 u_quad_t use; /* statistics */
133 };
134
135 /*
136 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
137 */
138 struct in6_ifstat {
139 u_quad_t ifs6_in_receive; /* # of total input datagram */
140 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
141 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
142 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
143 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
144 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
145 /* NOTE: increment on final dst if */
146 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
147 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
148 /* NOTE: fragment timeout is not here */
149 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
150 /* NOTE: increment on final dst if */
151 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
152 /* NOTE: increment on outgoing if */
153 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
154 /* NOTE: does not include forwrads */
155 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
156 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
157 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
158 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
159 /* NOTE: this is # after fragment */
160 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
161 /* NOTE: increment on final dst if */
162 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
163 /* NOTE: this is # after reass */
164 /* NOTE: increment on final dst if */
165 u_quad_t ifs6_reass_fail; /* # of reass failures */
166 /* NOTE: may not be packet count */
167 /* NOTE: increment on final dst if */
168 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
169 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
170 };
171
172 /*
173 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
174 * XXX: I'm not sure if this file is the right place for this structure...
175 */
176 struct icmp6_ifstat {
177 /*
178 * Input statistics
179 */
180 /* ipv6IfIcmpInMsgs, total # of input messages */
181 u_quad_t ifs6_in_msg;
182 /* ipv6IfIcmpInErrors, # of input error messages */
183 u_quad_t ifs6_in_error;
184 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
185 u_quad_t ifs6_in_dstunreach;
186 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
187 u_quad_t ifs6_in_adminprohib;
188 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
189 u_quad_t ifs6_in_timeexceed;
190 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
191 u_quad_t ifs6_in_paramprob;
192 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
193 u_quad_t ifs6_in_pkttoobig;
194 /* ipv6IfIcmpInEchos, # of input echo requests */
195 u_quad_t ifs6_in_echo;
196 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
197 u_quad_t ifs6_in_echoreply;
198 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
199 u_quad_t ifs6_in_routersolicit;
200 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
201 u_quad_t ifs6_in_routeradvert;
202 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
203 u_quad_t ifs6_in_neighborsolicit;
204 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
205 u_quad_t ifs6_in_neighboradvert;
206 /* ipv6IfIcmpInRedirects, # of input redirects */
207 u_quad_t ifs6_in_redirect;
208 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
209 u_quad_t ifs6_in_mldquery;
210 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
211 u_quad_t ifs6_in_mldreport;
212 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
213 u_quad_t ifs6_in_mlddone;
214
215 /*
216 * Output statistics. We should solve unresolved routing problem...
217 */
218 /* ipv6IfIcmpOutMsgs, total # of output messages */
219 u_quad_t ifs6_out_msg;
220 /* ipv6IfIcmpOutErrors, # of output error messages */
221 u_quad_t ifs6_out_error;
222 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
223 u_quad_t ifs6_out_dstunreach;
224 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
225 u_quad_t ifs6_out_adminprohib;
226 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
227 u_quad_t ifs6_out_timeexceed;
228 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
229 u_quad_t ifs6_out_paramprob;
230 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
231 u_quad_t ifs6_out_pkttoobig;
232 /* ipv6IfIcmpOutEchos, # of output echo requests */
233 u_quad_t ifs6_out_echo;
234 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
235 u_quad_t ifs6_out_echoreply;
236 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
237 u_quad_t ifs6_out_routersolicit;
238 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
239 u_quad_t ifs6_out_routeradvert;
240 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
241 u_quad_t ifs6_out_neighborsolicit;
242 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
243 u_quad_t ifs6_out_neighboradvert;
244 /* ipv6IfIcmpOutRedirects, # of output redirects */
245 u_quad_t ifs6_out_redirect;
246 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
247 u_quad_t ifs6_out_mldquery;
248 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
249 u_quad_t ifs6_out_mldreport;
250 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
251 u_quad_t ifs6_out_mlddone;
252 };
253
254 struct in6_ifreq {
255 char ifr_name[IFNAMSIZ];
256 union {
257 struct sockaddr_in6 ifru_addr;
258 struct sockaddr_in6 ifru_dstaddr;
259 short ifru_flags;
260 int ifru_flags6;
261 int ifru_metric;
262 void * ifru_data;
263 struct in6_addrlifetime ifru_lifetime;
264 struct in6_ifstat ifru_stat;
265 struct icmp6_ifstat ifru_icmp6stat;
266 } ifr_ifru;
267 };
268
269 struct in6_aliasreq {
270 char ifra_name[IFNAMSIZ];
271 struct sockaddr_in6 ifra_addr;
272 struct sockaddr_in6 ifra_dstaddr;
273 struct sockaddr_in6 ifra_prefixmask;
274 int ifra_flags;
275 struct in6_addrlifetime ifra_lifetime;
276 };
277
278 /* prefix type macro */
279 #define IN6_PREFIX_ND 1
280 #define IN6_PREFIX_RR 2
281
282 /*
283 * prefix related flags passed between kernel(NDP related part) and
284 * user land command(ifconfig) and daemon(rtadvd).
285 * Note: We originally intended to use prf_ra{} only within in6_prflags{}, but
286 * it was (probably unintentionally) used in nd6.h as well. Since C++ does
287 * not allow such a reference, prf_ra{} was then moved outside. In general,
288 * however, this structure should not be used directly.
289 */
290 struct prf_ra {
291 u_int32_t onlink : 1;
292 u_int32_t autonomous : 1;
293 u_int32_t router : 1;
294 u_int32_t reserved : 5;
295 };
296
297 struct in6_prflags {
298 struct prf_ra prf_ra;
299 u_char prf_reserved1;
300 u_short prf_reserved2;
301 /* want to put this on 4byte offset */
302 struct prf_rr {
303 u_int32_t decrvalid : 1;
304 u_int32_t decrprefd : 1;
305 u_int32_t reserved : 6;
306 } prf_rr;
307 u_char prf_reserved3;
308 u_short prf_reserved4;
309 };
310
311 struct in6_prefixreq {
312 char ipr_name[IFNAMSIZ];
313 u_char ipr_origin;
314 u_char ipr_plen;
315 u_int32_t ipr_vltime;
316 u_int32_t ipr_pltime;
317 struct in6_prflags ipr_flags;
318 struct sockaddr_in6 ipr_prefix;
319 };
320
321 #define PR_ORIG_RA 0
322 #define PR_ORIG_RR 1
323 #define PR_ORIG_STATIC 2
324 #define PR_ORIG_KERNEL 3
325
326 #define ipr_raf_onlink ipr_flags.prf_ra.onlink
327 #define ipr_raf_auto ipr_flags.prf_ra.autonomous
328
329 #define ipr_statef_onlink ipr_flags.prf_state.onlink
330
331 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
332 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
333
334 struct in6_rrenumreq {
335 char irr_name[IFNAMSIZ];
336 u_char irr_origin;
337 u_char irr_m_len; /* match len for matchprefix */
338 u_char irr_m_minlen; /* minlen for matching prefix */
339 u_char irr_m_maxlen; /* maxlen for matching prefix */
340 u_char irr_u_uselen; /* uselen for adding prefix */
341 u_char irr_u_keeplen; /* keeplen from matching prefix */
342 struct irr_raflagmask {
343 u_int32_t onlink : 1;
344 u_int32_t autonomous : 1;
345 u_int32_t reserved : 6;
346 } irr_raflagmask;
347 u_int32_t irr_vltime;
348 u_int32_t irr_pltime;
349 struct in6_prflags irr_flags;
350 struct sockaddr_in6 irr_matchprefix;
351 struct sockaddr_in6 irr_useprefix;
352 };
353
354 #define irr_raf_mask_onlink irr_raflagmask.onlink
355 #define irr_raf_mask_auto irr_raflagmask.autonomous
356 #define irr_raf_mask_reserved irr_raflagmask.reserved
357
358 #define irr_raf_onlink irr_flags.prf_ra.onlink
359 #define irr_raf_auto irr_flags.prf_ra.autonomous
360
361 #define irr_statef_onlink irr_flags.prf_state.onlink
362
363 #define irr_rrf irr_flags.prf_rr
364 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
365 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
366
367 /*
368 * Given a pointer to an in6_ifaddr (ifaddr),
369 * return a pointer to the addr as a sockaddr_in6
370 */
371 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
372 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
373 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
374 #define IA6_SIN6(ia) (&((ia)->ia_addr))
375 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
376 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
377 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
378
379 #ifdef _KERNEL
380 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
381 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
382 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
383 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
384 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
385 #endif
386
387 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
388 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
389
390 #ifdef _KERNEL
391 /*
392 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
393 * we do not shift numbers for binary compatibility.
394 */
395 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
396 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
397 #endif
398
399 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
400 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
401
402 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
403 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
404
405 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
406 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
407 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
408
409 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
410
411 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
412 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist)
413 #ifdef _KERNEL
414 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
415 #endif
416 #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
417 #define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq)
418 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
419 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
420 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
421 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
422
423 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
424 #if 0
425 /* withdrawn - do not reuse number 82 */
426 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
427 #endif
428 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
429 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
430
431 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
432 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
433
434 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
435
436 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
437 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
438 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
439 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
440 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
441 struct in6_rrenumreq) /* change */
442 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
443 struct in6_rrenumreq) /* set global */
444
445 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
446 struct sioc_sg_req6) /* get s,g pkt cnt */
447 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
448 struct sioc_mif_req6) /* get pkt cnt per if */
449 #define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
450 #define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
451
452 #define IN6_IFF_ANYCAST 0x01 /* anycast address */
453 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */
454 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
455 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
456 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
457 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
458 * (used only at first SIOC* call)
459 */
460 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
461 #define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
462
463 /* do not input/output */
464 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
465
466 #ifdef _KERNEL
467 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
468 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
469 #endif
470
471 #ifdef _KERNEL
472 MALLOC_DECLARE(M_IP6OPT);
473
474 extern struct in6_ifaddr *in6_ifaddr;
475
476 #define in6_ifstat_inc(ifp, tag) \
477 do { \
478 if (ifp) \
479 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
480 } while (/*CONSTCOND*/ 0)
481
482 extern struct ifqueue ip6intrq; /* IP6 packet input queue */
483 extern const struct in6_addr zeroin6_addr;
484 extern const u_char inet6ctlerrmap[];
485 extern unsigned long in6_maxmtu;
486
487 /*
488 * Macro for finding the internet address structure (in6_ifaddr) corresponding
489 * to a given interface (ifnet structure).
490 */
491 static inline struct in6_ifaddr *
492 ifp_to_ia6(struct ifnet *ifp)
493 {
494 struct ifaddr *ifa;
495
496 IFADDR_FOREACH(ifa, ifp) {
497 if (ifa->ifa_addr == NULL)
498 continue;
499 if (ifa->ifa_addr->sa_family == AF_INET6)
500 break;
501 }
502 return (struct in6_ifaddr *)ifa;
503 }
504
505 #define IFP_TO_IA6(__ifp, __ia) \
506 do { \
507 (__ia) = ifp_to_ia6((__ifp)); \
508 } while (/*CONSTCOND*/0)
509
510
511 #endif /* _KERNEL */
512
513 /*
514 * Multi-cast membership entry. One for each group/ifp that a PCB
515 * belongs to.
516 */
517 struct in6_multi_mship {
518 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
519 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
520 };
521
522 struct in6_multi {
523 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
524 struct in6_addr in6m_addr; /* IP6 multicast address */
525 struct ifnet *in6m_ifp; /* back pointer to ifnet */
526 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */
527 u_int in6m_refcount; /* # membership claims by sockets */
528 u_int in6m_state; /* state of the membership */
529 int in6m_timer; /* delay to send the 1st report */
530 struct timeval in6m_timer_expire; /* when the timer expires */
531 callout_t in6m_timer_ch;
532 };
533
534 #define IN6M_TIMER_UNDEF -1
535
536
537 #ifdef _KERNEL
538 /* flags to in6_update_ifa */
539 #define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
540
541 /*
542 * Structure used by macros below to remember position when stepping through
543 * all of the in6_multi records.
544 */
545 struct in6_multistep {
546 struct in6_ifaddr *i_ia;
547 struct in6_multi *i_in6m;
548 };
549
550 /*
551 * Macros for looking up the in6_multi record for a given IP6 multicast
552 * address on a given interface. If no matching record is found, "in6m"
553 * returns NULL.
554 */
555
556 static inline struct in6_multi *
557 in6_lookup_multi(struct in6_addr *addr, struct ifnet *ifp)
558 {
559 struct in6_multi *in6m;
560 struct in6_ifaddr *ia;
561
562 if ((ia = ifp_to_ia6(ifp)) == NULL)
563 return NULL;
564 LIST_FOREACH(in6m, &ia->ia6_multiaddrs, in6m_entry) {
565 if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, addr))
566 break;
567 }
568 return in6m;
569 }
570
571 #define IN6_LOOKUP_MULTI(__addr, __ifp, __in6m) \
572 /* struct in6_addr __addr; */ \
573 /* struct ifnet *__ifp; */ \
574 /* struct in6_multi *__in6m; */ \
575 do { \
576 (__in6m) = in6_lookup_multi(&(__addr), (__ifp)); \
577 } while (/*CONSTCOND*/ 0)
578
579 /*
580 * Macro to step through all of the in6_multi records, one at a time.
581 * The current position is remembered in "step", which the caller must
582 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
583 * and get the first record. Both macros return a NULL "in6m" when there
584 * are no remaining records.
585 */
586 static inline struct in6_multi *
587 in6_next_multi(struct in6_multistep *step)
588 {
589 struct in6_multi *in6m;
590
591 if ((in6m = step->i_in6m) != NULL) {
592 step->i_in6m = LIST_NEXT(in6m, in6m_entry);
593 return in6m;
594 }
595 while (step->i_ia != NULL) {
596 in6m = LIST_FIRST(&step->i_ia->ia6_multiaddrs);
597 step->i_ia = step->i_ia->ia_next;
598 if (in6m != NULL) {
599 step->i_in6m = LIST_NEXT(in6m, in6m_entry);
600 break;
601 }
602 }
603 return in6m;
604 }
605
606 static inline struct in6_multi *
607 in6_first_multi(struct in6_multistep *step)
608 {
609 step->i_ia = in6_ifaddr;
610 step->i_in6m = NULL;
611 return in6_next_multi(step);
612 }
613
614 #define IN6_NEXT_MULTI(__step, __in6m) \
615 /* struct in6_multistep __step; */ \
616 /* struct in6_multi *__in6m; */ \
617 do { \
618 (__in6m) = in6_next_multi(&(__step)); \
619 } while (/*CONSTCOND*/ 0)
620
621 #define IN6_FIRST_MULTI(__step, __in6m) \
622 /* struct in6_multistep __step; */ \
623 /* struct in6_multi *__in6m */ \
624 do { \
625 (__in6m) = in6_first_multi(&(__step)); \
626 } while (/*CONSTCOND*/ 0)
627
628
629 #if 0
630 /*
631 * Macros for looking up the in6_multi_mship record for a given IP6 multicast
632 * address on a given interface. If no matching record is found, "imm"
633 * returns NULL.
634 */
635 static inline struct in6_multi_mship *
636 in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp,
637 struct ip6_moptions *imop)
638 {
639 struct in6_multi_mship *imm;
640
641 LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) {
642 if (imm->i6mm_maddr->in6m_ifp != ifp)
643 continue;
644 if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr,
645 addr))
646 break;
647 }
648 return imm;
649 }
650
651 #define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \
652 /* struct in6_addr __addr; */ \
653 /* struct ifnet *__ifp; */ \
654 /* struct ip6_moptions *__imop */ \
655 /* struct in6_multi_mship *__imm; */ \
656 do { \
657 (__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \
658 } while (/*CONSTCOND*/ 0)
659 #endif
660
661 struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *,
662 int *, int);
663 void in6_delmulti(struct in6_multi *);
664 struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *,
665 int *, int);
666 int in6_leavegroup(struct in6_multi_mship *);
667 int in6_mask2len(struct in6_addr *, u_char *);
668 int in6_control(struct socket *, u_long, void *, struct ifnet *,
669 struct lwp *);
670 int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
671 struct in6_ifaddr *, int);
672 void in6_purgeaddr(struct ifaddr *);
673 int in6if_do_dad(struct ifnet *);
674 void in6_purgeif(struct ifnet *);
675 void in6_savemkludge(struct in6_ifaddr *);
676 void in6_setmaxmtu (void);
677 int in6_if2idlen (struct ifnet *);
678 void *in6_domifattach(struct ifnet *);
679 void in6_domifdetach(struct ifnet *, void *);
680 void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *);
681 void in6_ifremloop(struct ifaddr *);
682 void in6_ifaddloop(struct ifaddr *);
683 void in6_createmkludge(struct ifnet *);
684 void in6_purgemkludge(struct ifnet *);
685 struct in6_ifaddr *in6ifa_ifpforlinklocal(const struct ifnet *, int);
686 struct in6_ifaddr *in6ifa_ifplocaladdr(const struct ifnet *,
687 const struct in6_addr *);
688 struct in6_ifaddr *in6ifa_ifpwithaddr(const struct ifnet *,
689 const struct in6_addr *);
690 char *ip6_sprintf(const struct in6_addr *);
691 int in6_matchlen(struct in6_addr *, struct in6_addr *);
692 int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int);
693 void in6_prefixlen2mask(struct in6_addr *, int);
694 void in6_purgeprefix(struct ifnet *);
695
696 int ip6flow_fastforward(struct mbuf *); /* IPv6 fast forward routine */
697
698 int in6_src_ioctl(u_long, void *);
699 int in6_is_addr_deprecated(struct sockaddr_in6 *);
700 struct in6pcb;
701 #endif /* _KERNEL */
702
703 #endif /* !_NETINET6_IN6_VAR_H_ */
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