1 /* $FreeBSD$ */
2 /* $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 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 * 4. 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 scope6_id;
91 struct in6_ifextra {
92 struct in6_ifstat *in6_ifstat;
93 struct icmp6_ifstat *icmp6_ifstat;
94 struct nd_ifinfo *nd_ifinfo;
95 struct scope6_id *scope6_id;
96 };
97
98 struct in6_ifaddr {
99 struct ifaddr ia_ifa; /* protocol-independent info */
100 #define ia_ifp ia_ifa.ifa_ifp
101 #define ia_flags ia_ifa.ifa_flags
102 struct sockaddr_in6 ia_addr; /* interface address */
103 struct sockaddr_in6 ia_net; /* network number of interface */
104 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
105 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
106 u_int32_t ia_plen; /* prefix length */
107 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
108 int ia6_flags;
109
110 struct in6_addrlifetime ia6_lifetime;
111 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */
112
113 /* back pointer to the ND prefix (for autoconfigured addresses only) */
114 struct nd_prefix *ia6_ndpr;
115
116 /* multicast addresses joined from the kernel */
117 LIST_HEAD(, in6_multi_mship) ia6_memberships;
118 };
119
120 /* control structure to manage address selection policy */
121 struct in6_addrpolicy {
122 struct sockaddr_in6 addr; /* prefix address */
123 struct sockaddr_in6 addrmask; /* prefix mask */
124 int preced; /* precedence */
125 int label; /* matching label */
126 u_quad_t use; /* statistics */
127 };
128
129 /*
130 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
131 */
132 struct in6_ifstat {
133 u_quad_t ifs6_in_receive; /* # of total input datagram */
134 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
135 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
136 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
137 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
138 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
139 /* NOTE: increment on final dst if */
140 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
141 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
142 /* NOTE: fragment timeout is not here */
143 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
144 /* NOTE: increment on final dst if */
145 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
146 /* NOTE: increment on outgoing if */
147 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
148 /* NOTE: does not include forwrads */
149 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
150 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
151 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
152 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
153 /* NOTE: this is # after fragment */
154 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
155 /* NOTE: increment on final dst if */
156 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
157 /* NOTE: this is # after reass */
158 /* NOTE: increment on final dst if */
159 u_quad_t ifs6_reass_fail; /* # of reass failures */
160 /* NOTE: may not be packet count */
161 /* NOTE: increment on final dst if */
162 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
163 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
164 };
165
166 /*
167 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
168 * XXX: I'm not sure if this file is the right place for this structure...
169 */
170 struct icmp6_ifstat {
171 /*
172 * Input statistics
173 */
174 /* ipv6IfIcmpInMsgs, total # of input messages */
175 u_quad_t ifs6_in_msg;
176 /* ipv6IfIcmpInErrors, # of input error messages */
177 u_quad_t ifs6_in_error;
178 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
179 u_quad_t ifs6_in_dstunreach;
180 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
181 u_quad_t ifs6_in_adminprohib;
182 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
183 u_quad_t ifs6_in_timeexceed;
184 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
185 u_quad_t ifs6_in_paramprob;
186 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
187 u_quad_t ifs6_in_pkttoobig;
188 /* ipv6IfIcmpInEchos, # of input echo requests */
189 u_quad_t ifs6_in_echo;
190 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
191 u_quad_t ifs6_in_echoreply;
192 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
193 u_quad_t ifs6_in_routersolicit;
194 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
195 u_quad_t ifs6_in_routeradvert;
196 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
197 u_quad_t ifs6_in_neighborsolicit;
198 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
199 u_quad_t ifs6_in_neighboradvert;
200 /* ipv6IfIcmpInRedirects, # of input redirects */
201 u_quad_t ifs6_in_redirect;
202 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
203 u_quad_t ifs6_in_mldquery;
204 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
205 u_quad_t ifs6_in_mldreport;
206 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
207 u_quad_t ifs6_in_mlddone;
208
209 /*
210 * Output statistics. We should solve unresolved routing problem...
211 */
212 /* ipv6IfIcmpOutMsgs, total # of output messages */
213 u_quad_t ifs6_out_msg;
214 /* ipv6IfIcmpOutErrors, # of output error messages */
215 u_quad_t ifs6_out_error;
216 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
217 u_quad_t ifs6_out_dstunreach;
218 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
219 u_quad_t ifs6_out_adminprohib;
220 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
221 u_quad_t ifs6_out_timeexceed;
222 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
223 u_quad_t ifs6_out_paramprob;
224 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
225 u_quad_t ifs6_out_pkttoobig;
226 /* ipv6IfIcmpOutEchos, # of output echo requests */
227 u_quad_t ifs6_out_echo;
228 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
229 u_quad_t ifs6_out_echoreply;
230 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
231 u_quad_t ifs6_out_routersolicit;
232 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
233 u_quad_t ifs6_out_routeradvert;
234 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
235 u_quad_t ifs6_out_neighborsolicit;
236 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
237 u_quad_t ifs6_out_neighboradvert;
238 /* ipv6IfIcmpOutRedirects, # of output redirects */
239 u_quad_t ifs6_out_redirect;
240 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
241 u_quad_t ifs6_out_mldquery;
242 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
243 u_quad_t ifs6_out_mldreport;
244 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
245 u_quad_t ifs6_out_mlddone;
246 };
247
248 struct in6_ifreq {
249 char ifr_name[IFNAMSIZ];
250 union {
251 struct sockaddr_in6 ifru_addr;
252 struct sockaddr_in6 ifru_dstaddr;
253 int ifru_flags;
254 int ifru_flags6;
255 int ifru_metric;
256 caddr_t ifru_data;
257 struct in6_addrlifetime ifru_lifetime;
258 struct in6_ifstat ifru_stat;
259 struct icmp6_ifstat ifru_icmp6stat;
260 u_int32_t ifru_scope_id[16];
261 } ifr_ifru;
262 };
263
264 struct in6_aliasreq {
265 char ifra_name[IFNAMSIZ];
266 struct sockaddr_in6 ifra_addr;
267 struct sockaddr_in6 ifra_dstaddr;
268 struct sockaddr_in6 ifra_prefixmask;
269 int ifra_flags;
270 struct in6_addrlifetime ifra_lifetime;
271 };
272
273 /* prefix type macro */
274 #define IN6_PREFIX_ND 1
275 #define IN6_PREFIX_RR 2
276
277 /*
278 * prefix related flags passed between kernel(NDP related part) and
279 * user land command(ifconfig) and daemon(rtadvd).
280 */
281 struct in6_prflags {
282 struct prf_ra {
283 u_char onlink : 1;
284 u_char autonomous : 1;
285 u_char reserved : 6;
286 } prf_ra;
287 u_char prf_reserved1;
288 u_short prf_reserved2;
289 /* want to put this on 4byte offset */
290 struct prf_rr {
291 u_char decrvalid : 1;
292 u_char decrprefd : 1;
293 u_char reserved : 6;
294 } prf_rr;
295 u_char prf_reserved3;
296 u_short prf_reserved4;
297 };
298
299 struct in6_prefixreq {
300 char ipr_name[IFNAMSIZ];
301 u_char ipr_origin;
302 u_char ipr_plen;
303 u_int32_t ipr_vltime;
304 u_int32_t ipr_pltime;
305 struct in6_prflags ipr_flags;
306 struct sockaddr_in6 ipr_prefix;
307 };
308
309 #define PR_ORIG_RA 0
310 #define PR_ORIG_RR 1
311 #define PR_ORIG_STATIC 2
312 #define PR_ORIG_KERNEL 3
313
314 #define ipr_raf_onlink ipr_flags.prf_ra.onlink
315 #define ipr_raf_auto ipr_flags.prf_ra.autonomous
316
317 #define ipr_statef_onlink ipr_flags.prf_state.onlink
318
319 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
320 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
321
322 struct in6_rrenumreq {
323 char irr_name[IFNAMSIZ];
324 u_char irr_origin;
325 u_char irr_m_len; /* match len for matchprefix */
326 u_char irr_m_minlen; /* minlen for matching prefix */
327 u_char irr_m_maxlen; /* maxlen for matching prefix */
328 u_char irr_u_uselen; /* uselen for adding prefix */
329 u_char irr_u_keeplen; /* keeplen from matching prefix */
330 struct irr_raflagmask {
331 u_char onlink : 1;
332 u_char autonomous : 1;
333 u_char reserved : 6;
334 } irr_raflagmask;
335 u_int32_t irr_vltime;
336 u_int32_t irr_pltime;
337 struct in6_prflags irr_flags;
338 struct sockaddr_in6 irr_matchprefix;
339 struct sockaddr_in6 irr_useprefix;
340 };
341
342 #define irr_raf_mask_onlink irr_raflagmask.onlink
343 #define irr_raf_mask_auto irr_raflagmask.autonomous
344 #define irr_raf_mask_reserved irr_raflagmask.reserved
345
346 #define irr_raf_onlink irr_flags.prf_ra.onlink
347 #define irr_raf_auto irr_flags.prf_ra.autonomous
348
349 #define irr_statef_onlink irr_flags.prf_state.onlink
350
351 #define irr_rrf irr_flags.prf_rr
352 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
353 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
354
355 /*
356 * Given a pointer to an in6_ifaddr (ifaddr),
357 * return a pointer to the addr as a sockaddr_in6
358 */
359 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
360 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
361 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
362 #define IA6_SIN6(ia) (&((ia)->ia_addr))
363 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
364 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
365 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
366
367 #define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
368
369 #ifdef _KERNEL
370 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
371 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
372 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
373 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
374 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
375 #endif
376
377 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
378 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
379
380 #ifdef _KERNEL
381 /*
382 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
383 * we do not shift numbers for binary compatibility.
384 */
385 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
386 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
387 #endif
388
389 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
390 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
391
392 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
393 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
394
395 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
396 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
397 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
398
399 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
400
401 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
402 #ifdef _KERNEL
403 /* XXX: SIOCGPRLST_IN6 is exposed in KAME but in6_oprlist is not. */
404 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist)
405 #endif
406 #ifdef _KERNEL
407 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
408 #endif
409 #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
410 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
411 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
412 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
413 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
414
415 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
416 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
417 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
418 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
419
420 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
421 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
422
423 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
424
425 #define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
426 #define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
427 #define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
428
429 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
430 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
431 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
432 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
433 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
434 struct in6_rrenumreq) /* change */
435 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
436 struct in6_rrenumreq) /* set global */
437
438 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
439 struct sioc_sg_req6) /* get s,g pkt cnt */
440 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
441 struct sioc_mif_req6) /* get pkt cnt per if */
442
443 #define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
444 #define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
445
446 #define IN6_IFF_ANYCAST 0x01 /* anycast address */
447 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */
448 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
449 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
450 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
451 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
452 * (used only at first SIOC* call)
453 */
454 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
455 #define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
456 #define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management.
457 * XXX: this should be temporary.
458 */
459
460 /* do not input/output */
461 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
462
463 #ifdef _KERNEL
464 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
465 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
466 #endif
467
468 #ifdef _KERNEL
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 in6_addr zeroin6_addr;
479 extern u_char inet6ctlerrmap[];
480 extern unsigned long in6_maxmtu;
481 #ifdef MALLOC_DECLARE
482 MALLOC_DECLARE(M_IPMADDR);
483 #endif /* MALLOC_DECLARE */
484
485 /*
486 * Macro for finding the internet address structure (in6_ifaddr) corresponding
487 * to a given interface (ifnet structure).
488 */
489
490 #define IFP_TO_IA6(ifp, ia) \
491 /* struct ifnet *ifp; */ \
492 /* struct in6_ifaddr *ia; */ \
493 do { \
494 struct ifaddr *ifa; \
495 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \
496 if (!ifa->ifa_addr) \
497 continue; \
498 if (ifa->ifa_addr->sa_family == AF_INET6) \
499 break; \
500 } \
501 (ia) = (struct in6_ifaddr *)ifa; \
502 } while (/*CONSTCOND*/ 0)
503
504 #endif /* _KERNEL */
505
506 /*
507 * Multi-cast membership entry. One for each group/ifp that a PCB
508 * belongs to.
509 */
510 struct in6_multi_mship {
511 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
512 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
513 };
514
515 struct in6_multi {
516 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
517 struct in6_addr in6m_addr; /* IP6 multicast address */
518 struct ifnet *in6m_ifp; /* back pointer to ifnet */
519 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
520 u_int in6m_refcount; /* # membership claims by sockets */
521 u_int in6m_state; /* state of the membership */
522 u_int in6m_timer; /* MLD6 listener report timer */
523 };
524
525 #ifdef _KERNEL
526 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
527
528 /*
529 * Structure used by macros below to remember position when stepping through
530 * all of the in6_multi records.
531 */
532 struct in6_multistep {
533 struct in6_ifaddr *i_ia;
534 struct in6_multi *i_in6m;
535 };
536
537 /*
538 * Macros for looking up the in6_multi record for a given IP6 multicast
539 * address on a given interface. If no matching record is found, "in6m"
540 * returns NLL.
541 */
542
543 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
544 /* struct in6_addr addr; */ \
545 /* struct ifnet *ifp; */ \
546 /* struct in6_multi *in6m; */ \
547 do { \
548 struct ifmultiaddr *ifma; \
549 IF_ADDR_LOCK(ifp); \
550 TAILQ_FOREACH(ifma, &(ifp)->if_multiaddrs, ifma_link) { \
551 if (ifma->ifma_addr->sa_family == AF_INET6 \
552 && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \
553 &(addr))) \
554 break; \
555 } \
556 (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \
557 IF_ADDR_UNLOCK(ifp); \
558 } while(0)
559
560 /*
561 * Macro to step through all of the in6_multi records, one at a time.
562 * The current position is remembered in "step", which the caller must
563 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
564 * and get the first record. Both macros return a NULL "in6m" when there
565 * are no remaining records.
566 */
567 #define IN6_NEXT_MULTI(step, in6m) \
568 /* struct in6_multistep step; */ \
569 /* struct in6_multi *in6m; */ \
570 do { \
571 if (((in6m) = (step).i_in6m) != NULL) \
572 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
573 } while(0)
574
575 #define IN6_FIRST_MULTI(step, in6m) \
576 /* struct in6_multistep step; */ \
577 /* struct in6_multi *in6m */ \
578 do { \
579 (step).i_in6m = in6_multihead.lh_first; \
580 IN6_NEXT_MULTI((step), (in6m)); \
581 } while(0)
582
583 struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *,
584 int *));
585 void in6_delmulti __P((struct in6_multi *));
586 struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *);
587 int in6_leavegroup(struct in6_multi_mship *);
588 int in6_mask2len __P((struct in6_addr *, u_char *));
589 int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *,
590 struct thread *));
591 int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *,
592 struct in6_ifaddr *));
593 void in6_purgeaddr __P((struct ifaddr *));
594 int in6if_do_dad __P((struct ifnet *));
595 void in6_purgeif __P((struct ifnet *));
596 void in6_savemkludge __P((struct in6_ifaddr *));
597 void *in6_domifattach __P((struct ifnet *));
598 void in6_domifdetach __P((struct ifnet *, void *));
599 void in6_setmaxmtu __P((void));
600 void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *));
601 void in6_purgemkludge __P((struct ifnet *));
602 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int));
603 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *));
604 char *ip6_sprintf __P((const struct in6_addr *));
605 int in6_addr2zoneid __P((struct ifnet *, struct in6_addr *, u_int32_t *));
606 int in6_matchlen __P((struct in6_addr *, struct in6_addr *));
607 int in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int));
608 void in6_prefixlen2mask __P((struct in6_addr *, int));
609 int in6_prefix_ioctl __P((struct socket *, u_long, caddr_t,
610 struct ifnet *));
611 int in6_prefix_add_ifid __P((int, struct in6_ifaddr *));
612 void in6_prefix_remove_ifid __P((int, struct in6_ifaddr *));
613 void in6_purgeprefix __P((struct ifnet *));
614 void in6_ifremloop(struct ifaddr *);
615 void in6_ifaddloop(struct ifaddr *);
616
617 int in6_is_addr_deprecated __P((struct sockaddr_in6 *));
618 struct inpcb;
619 int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *,
620 struct inpcb *, struct ifnet **));
621 int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *,
622 struct ifnet *));
623 void in6_clearscope __P((struct in6_addr *));
624 int in6_src_ioctl __P((u_long, caddr_t));
625 #endif /* _KERNEL */
626
627 #endif /* _NETINET6_IN6_VAR_H_ */
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