1/*
2 * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29/*
30 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
31 * All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. Neither the name of the project nor the names of its contributors
42 * may be used to endorse or promote products derived from this software
43 * without specific prior written permission.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * SUCH DAMAGE.
56 */
57
58/*
59 * Copyright (c) 1985, 1986, 1993
60 * The Regents of the University of California. All rights reserved.
61 *
62 * Redistribution and use in source and binary forms, with or without
63 * modification, are permitted provided that the following conditions
64 * are met:
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in the
69 * documentation and/or other materials provided with the distribution.
70 * 3. All advertising materials mentioning features or use of this software
71 * must display the following acknowledgement:
72 * This product includes software developed by the University of
73 * California, Berkeley and its contributors.
74 * 4. Neither the name of the University nor the names of its contributors
75 * may be used to endorse or promote products derived from this software
76 * without specific prior written permission.
77 *
78 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
79 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
80 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
81 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
82 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
83 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
84 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
85 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
86 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
87 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
88 * SUCH DAMAGE.
89 *
90 * @(#)in_var.h 8.1 (Berkeley) 6/10/93
91 */
92
93#ifndef _NETINET6_IN6_VAR_H_
94#define _NETINET6_IN6_VAR_H_
95#include <sys/appleapiopts.h>
96#include <net/net_kev.h>
97
98#ifdef BSD_KERNEL_PRIVATE
99#include <sys/tree.h>
100#include <sys/mcache.h>
101#endif /* BSD_KERNEL_PRIVATE */
102#include <netinet6/scope6_var.h>
103#include <sys/kern_event.h>
104#include <net/ethernet.h>
105
106/*
107 * pltime/vltime are just for future reference (required to implements 2
108 * hour rule for hosts). they should never be modified by nd6_timeout or
109 * anywhere else.
110 * userland -> kernel: accept pltime/vltime
111 * kernel -> userland: throw up everything
112 * in kernel: modify preferred/expire only
113 */
114struct in6_addrlifetime {
115 time_t ia6t_expire; /* valid lifetime expiration time */
116 time_t ia6t_preferred; /* preferred lifetime expiration time */
117 u_int32_t ia6t_vltime; /* valid lifetime */
118 u_int32_t ia6t_pltime; /* prefix lifetime */
119};
120
121#ifdef BSD_KERNEL_PRIVATE
122struct in6_addrlifetime_32 {
123 u_int32_t ia6t_expire;
124 u_int32_t ia6t_preferred;
125 u_int32_t ia6t_vltime;
126 u_int32_t ia6t_pltime;
127};
128
129struct in6_addrlifetime_64 {
130 u_int64_t ia6t_expire;
131 u_int64_t ia6t_preferred;
132 u_int32_t ia6t_vltime;
133 u_int32_t ia6t_pltime;
134};
135
136/*
137 * Internal representation of ia6_lifetime (expiration in uptime unit)
138 */
139struct in6_addrlifetime_i {
140 u_int64_t ia6ti_expire; /* valid lifetime expiration time */
141 u_int64_t ia6ti_preferred; /* preferred lifetime expiration time */
142 u_int32_t ia6ti_vltime; /* valid lifetime */
143 u_int32_t ia6ti_pltime; /* prefix lifetime */
144 u_int64_t ia6ti_base_calendartime; /* calendar time at creation */
145 u_int64_t ia6ti_base_uptime; /* uptime at creation */
146};
147
148/*
149 * Interface address, IPv6 version. One of these structures
150 * is allocated for each interface with an IPv6 address.
151 * The ifaddr structure contains the protocol-independent part
152 * of the structure and is assumed to be first.
153 */
154
155struct in6_ifaddr {
156 struct ifaddr ia_ifa; /* protocol-independent info */
157#define ia_ifp ia_ifa.ifa_ifp
158#define ia_flags ia_ifa.ifa_flags
159 struct sockaddr_in6 ia_addr; /* interface address */
160 struct sockaddr_in6 ia_net; /* network number of interface */
161 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
162 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
163 u_int32_t ia_plen; /* prefix length */
164 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
165 int ia6_flags;
166
167 struct in6_addrlifetime_i ia6_lifetime;
168 /*
169 * the creation time of this address, which is
170 * currently used for temporary addresses only.
171 */
172 u_int64_t ia6_createtime;
173 u_int64_t ia6_updatetime;
174
175 /* back pointer to the ND prefix */
176 struct nd_prefix *ia6_ndpr;
177
178 /* multicast addresses joined from the kernel */
179 LIST_HEAD(, in6_multi_mship) ia6_memberships;
180};
181
182#define ifatoia6(ifa) ((struct in6_ifaddr *)(void *)(ifa))
183#endif /* BSD_KERNEL_PRIVATE */
184
185/* control structure to manage address selection policy */
186struct in6_addrpolicy {
187 struct sockaddr_in6 addr; /* prefix address */
188 struct sockaddr_in6 addrmask; /* prefix mask */
189 int preced; /* precedence */
190 int label; /* matching label */
191 u_quad_t use; /* statistics */
192};
193
194/*
195 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
196 */
197struct in6_ifstat {
198 u_quad_t ifs6_in_receive; /* # of total input datagram */
199 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
200 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
201 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
202 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
203 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
204 /* NOTE: increment on final dst if */
205 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
206 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
207 /* NOTE: fragment timeout is not here */
208 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
209 /* NOTE: increment on final dst if */
210 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
211 /* NOTE: increment on outgoing if */
212 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
213 /* NOTE: does not include forwrads */
214 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
215 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
216 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
217 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
218 /* NOTE: this is # after fragment */
219 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
220 /* NOTE: increment on final dst if */
221 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
222 /* NOTE: this is # after reass */
223 /* NOTE: increment on final dst if */
224 u_quad_t ifs6_atmfrag_rcvd; /* # of atomic fragments received */
225 u_quad_t ifs6_reass_fail; /* # of reass failures */
226 /* NOTE: may not be packet count */
227 /* NOTE: increment on final dst if */
228 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
229 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
230
231 u_quad_t ifs6_cantfoward_icmp6; /* # of ICMPv6 packets received for unreachable dest */
232 u_quad_t ifs6_addr_expiry_cnt; /* # of address expiry events (excluding privacy addresses) */
233 u_quad_t ifs6_pfx_expiry_cnt; /* # of prefix expiry events */
234 u_quad_t ifs6_defrtr_expiry_cnt; /* # of default router expiry events */
235};
236
237/*
238 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
239 * XXX: I'm not sure if this file is the right place for this structure...
240 */
241struct icmp6_ifstat {
242 /*
243 * Input statistics
244 */
245 /* ipv6IfIcmpInMsgs, total # of input messages */
246 u_quad_t ifs6_in_msg;
247 /* ipv6IfIcmpInErrors, # of input error messages */
248 u_quad_t ifs6_in_error;
249 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
250 u_quad_t ifs6_in_dstunreach;
251 /* ipv6IfIcmpInAdminProhibs, # of input admin. prohibited errs */
252 u_quad_t ifs6_in_adminprohib;
253 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
254 u_quad_t ifs6_in_timeexceed;
255 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
256 u_quad_t ifs6_in_paramprob;
257 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
258 u_quad_t ifs6_in_pkttoobig;
259 /* ipv6IfIcmpInEchos, # of input echo requests */
260 u_quad_t ifs6_in_echo;
261 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
262 u_quad_t ifs6_in_echoreply;
263 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
264 u_quad_t ifs6_in_routersolicit;
265 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
266 u_quad_t ifs6_in_routeradvert;
267 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
268 u_quad_t ifs6_in_neighborsolicit;
269 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advs. */
270 u_quad_t ifs6_in_neighboradvert;
271 /* ipv6IfIcmpInRedirects, # of input redirects */
272 u_quad_t ifs6_in_redirect;
273 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
274 u_quad_t ifs6_in_mldquery;
275 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
276 u_quad_t ifs6_in_mldreport;
277 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
278 u_quad_t ifs6_in_mlddone;
279
280 /*
281 * Output statistics. We should solve unresolved routing problem...
282 */
283 /* ipv6IfIcmpOutMsgs, total # of output messages */
284 u_quad_t ifs6_out_msg;
285 /* ipv6IfIcmpOutErrors, # of output error messages */
286 u_quad_t ifs6_out_error;
287 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
288 u_quad_t ifs6_out_dstunreach;
289 /* ipv6IfIcmpOutAdminProhibs, # of output admin. prohibited errs */
290 u_quad_t ifs6_out_adminprohib;
291 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
292 u_quad_t ifs6_out_timeexceed;
293 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
294 u_quad_t ifs6_out_paramprob;
295 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
296 u_quad_t ifs6_out_pkttoobig;
297 /* ipv6IfIcmpOutEchos, # of output echo requests */
298 u_quad_t ifs6_out_echo;
299 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
300 u_quad_t ifs6_out_echoreply;
301 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
302 u_quad_t ifs6_out_routersolicit;
303 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advs. */
304 u_quad_t ifs6_out_routeradvert;
305 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
306 u_quad_t ifs6_out_neighborsolicit;
307 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advs. */
308 u_quad_t ifs6_out_neighboradvert;
309 /* ipv6IfIcmpOutRedirects, # of output redirects */
310 u_quad_t ifs6_out_redirect;
311 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
312 u_quad_t ifs6_out_mldquery;
313 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
314 u_quad_t ifs6_out_mldreport;
315 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
316 u_quad_t ifs6_out_mlddone;
317};
318
319struct in6_ifreq {
320 char ifr_name[IFNAMSIZ];
321 union {
322 struct sockaddr_in6 ifru_addr;
323 struct sockaddr_in6 ifru_dstaddr;
324 int ifru_flags;
325 int ifru_flags6;
326 int ifru_metric;
327 int ifru_intval;
328 caddr_t ifru_data;
329 struct in6_addrlifetime ifru_lifetime;
330 struct in6_ifstat ifru_stat;
331 struct icmp6_ifstat ifru_icmp6stat;
332 u_int32_t ifru_scope_id[SCOPE6_ID_MAX];
333 } ifr_ifru;
334};
335
336struct in6_aliasreq {
337 char ifra_name[IFNAMSIZ];
338 struct sockaddr_in6 ifra_addr;
339 struct sockaddr_in6 ifra_dstaddr;
340 struct sockaddr_in6 ifra_prefixmask;
341 int ifra_flags;
342 struct in6_addrlifetime ifra_lifetime;
343};
344
345#ifdef PRIVATE
346#define IN6_CGA_MODIFIER_LENGTH 16
347
348struct in6_cga_modifier {
349 u_int8_t octets[IN6_CGA_MODIFIER_LENGTH];
350};
351
352struct in6_cga_prepare {
353 struct in6_cga_modifier cga_modifier;
354 u_int8_t cga_security_level;
355 u_int8_t reserved_A[15];
356};
357
358#define IN6_CGA_KEY_MAXSIZE 2048 /* octets */
359
360struct in6_cga_nodecfg {
361 struct iovec cga_privkey;
362 struct iovec cga_pubkey;
363 struct in6_cga_prepare cga_prepare;
364};
365
366/*
367 * XXX in6_llstartreq will be removed once
368 * configd adopts the more generically named
369 * in6_cgareq structure.
370 */
371struct in6_llstartreq {
372 char llsr_name[IFNAMSIZ];
373 int llsr_flags;
374 struct in6_cga_prepare llsr_cgaprep;
375 struct in6_addrlifetime llsr_lifetime;
376};
377
378struct in6_cgareq {
379 char cgar_name[IFNAMSIZ];
380 int cgar_flags;
381 struct in6_cga_prepare cgar_cgaprep;
382 struct in6_addrlifetime cgar_lifetime;
383};
384
385#ifdef BSD_KERNEL_PRIVATE
386/*
387 * XXX Corresponding versions of in6_llstartreq
388 * will be removed after the new in6_cgareq is
389 * adopted by configd
390 */
391struct in6_llstartreq_32 {
392 char llsr_name[IFNAMSIZ];
393 int llsr_flags;
394 struct in6_cga_prepare llsr_cgaprep;
395 struct in6_addrlifetime_32 llsr_lifetime;
396};
397
398struct in6_llstartreq_64 {
399 char llsr_name[IFNAMSIZ];
400 int llsr_flags;
401 struct in6_cga_prepare llsr_cgaprep;
402 struct in6_addrlifetime_64 llsr_lifetime;
403};
404
405struct in6_cgareq_32 {
406 char cgar_name[IFNAMSIZ];
407 int cgar_flags;
408 struct in6_cga_prepare cgar_cgaprep;
409 struct in6_addrlifetime_32 cgar_lifetime;
410};
411
412struct in6_cgareq_64 {
413 char cgar_name[IFNAMSIZ];
414 int cgar_flags;
415 struct in6_cga_prepare cgar_cgaprep;
416 struct in6_addrlifetime_64 cgar_lifetime;
417};
418
419#endif /* !BSD_KERNEL_PRIVATE */
420#endif /* PRIVATE */
421
422#ifdef BSD_KERNEL_PRIVATE
423struct in6_aliasreq_32 {
424 char ifra_name[IFNAMSIZ];
425 struct sockaddr_in6 ifra_addr;
426 struct sockaddr_in6 ifra_dstaddr;
427 struct sockaddr_in6 ifra_prefixmask;
428 int ifra_flags;
429 struct in6_addrlifetime_32 ifra_lifetime;
430};
431
432struct in6_aliasreq_64 {
433 char ifra_name[IFNAMSIZ];
434 struct sockaddr_in6 ifra_addr;
435 struct sockaddr_in6 ifra_dstaddr;
436 struct sockaddr_in6 ifra_prefixmask;
437 int ifra_flags;
438 struct in6_addrlifetime_64 ifra_lifetime;
439};
440#endif /* BSD_KERNEL_PRIVATE */
441
442/* prefix type macro */
443#define IN6_PREFIX_ND 1
444#define IN6_PREFIX_RR 2
445
446/*
447 * prefix related flags passed between kernel(NDP related part) and
448 * user land command(ifconfig) and daemon(rtadvd).
449 */
450struct in6_prflags {
451 struct prf_ra {
452 u_char onlink : 1;
453 u_char autonomous : 1;
454 u_char reserved : 6;
455 } prf_ra;
456 u_char prf_reserved1;
457 u_short prf_reserved2;
458 /* want to put this on 4byte offset */
459 struct prf_rr {
460 u_char decrvalid : 1;
461 u_char decrprefd : 1;
462 u_char reserved : 6;
463 } prf_rr;
464 u_char prf_reserved3;
465 u_short prf_reserved4;
466};
467
468struct in6_prefixreq {
469 char ipr_name[IFNAMSIZ];
470 u_char ipr_origin;
471 u_char ipr_plen;
472 u_int32_t ipr_vltime;
473 u_int32_t ipr_pltime;
474 struct in6_prflags ipr_flags;
475 struct sockaddr_in6 ipr_prefix;
476};
477
478#define PR_ORIG_RA 0
479#define PR_ORIG_RR 1
480#define PR_ORIG_STATIC 2
481#define PR_ORIG_KERNEL 3
482
483#define ipr_raf_onlink ipr_flags.prf_ra.onlink
484#define ipr_raf_auto ipr_flags.prf_ra.autonomous
485
486#define ipr_statef_onlink ipr_flags.prf_state.onlink
487
488#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
489#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
490
491struct in6_rrenumreq {
492 char irr_name[IFNAMSIZ];
493 u_char irr_origin;
494 u_char irr_m_len; /* match len for matchprefix */
495 u_char irr_m_minlen; /* minlen for matching prefix */
496 u_char irr_m_maxlen; /* maxlen for matching prefix */
497 u_char irr_u_uselen; /* uselen for adding prefix */
498 u_char irr_u_keeplen; /* keeplen from matching prefix */
499 struct irr_raflagmask {
500 u_char onlink : 1;
501 u_char autonomous : 1;
502 u_char reserved : 6;
503 } irr_raflagmask;
504 u_int32_t irr_vltime;
505 u_int32_t irr_pltime;
506 struct in6_prflags irr_flags;
507 struct sockaddr_in6 irr_matchprefix;
508 struct sockaddr_in6 irr_useprefix;
509};
510
511#define irr_raf_mask_onlink irr_raflagmask.onlink
512#define irr_raf_mask_auto irr_raflagmask.autonomous
513#define irr_raf_mask_reserved irr_raflagmask.reserved
514
515#define irr_raf_onlink irr_flags.prf_ra.onlink
516#define irr_raf_auto irr_flags.prf_ra.autonomous
517
518#define irr_statef_onlink irr_flags.prf_state.onlink
519
520#define irr_rrf irr_flags.prf_rr
521#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
522#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
523
524/*
525 * Event data, inet6 style.
526 */
527struct kev_in6_addrlifetime {
528 u_int32_t ia6t_expire;
529 u_int32_t ia6t_preferred;
530 u_int32_t ia6t_vltime;
531 u_int32_t ia6t_pltime;
532};
533
534struct kev_in6_data {
535 struct net_event_data link_data;
536 struct sockaddr_in6 ia_addr; /* interface address */
537 struct sockaddr_in6 ia_net; /* network number of interface */
538 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
539 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
540 u_int32_t ia_plen; /* prefix length */
541 u_int32_t ia6_flags; /* address flags from in6_ifaddr */
542 struct kev_in6_addrlifetime ia_lifetime; /* address life info */
543 uint8_t ia_mac[ETHER_ADDR_LEN];
544};
545
546#ifdef BSD_KERNEL_PRIVATE
547/* Utility function used inside netinet6 kernel code for generating events */
548void in6_post_msg(struct ifnet *, u_int32_t, struct in6_ifaddr *, uint8_t *mac);
549
550#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
551 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
552 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
553 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
554 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0)
555
556/*
557 * Given a pointer to an in6_ifaddr (ifaddr),
558 * return a pointer to the addr as a sockaddr_in6
559 */
560#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
561#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
562#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
563#define IA6_SIN6(ia) (&((ia)->ia_addr))
564#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
565#define IFA_IN6(x) \
566 (&((struct sockaddr_in6 *)(void *)((x)->ifa_addr))->sin6_addr)
567#define IFA_DSTIN6(x) \
568 (&((struct sockaddr_in6 *)(void *)((x)->ifa_dstaddr))->sin6_addr)
569#define IFPR_IN6(x) \
570 (&((struct sockaddr_in6 *)(void *)((x)->ifpr_prefix))->sin6_addr)
571#endif /* BSD_KERNEL_PRIVATE */
572
573#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
574#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
575
576/*
577 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
578 * we do not shift numbers for binary compatibility.
579 */
580#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
581#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
582
583#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
584#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
585
586#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
587#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
588#ifdef BSD_KERNEL_PRIVATE
589#define SIOCAIFADDR_IN6_32 _IOW('i', 26, struct in6_aliasreq_32)
590#define SIOCAIFADDR_IN6_64 _IOW('i', 26, struct in6_aliasreq_64)
591#endif /* BSD_KERNEL_PRIVATE */
592
593#define SIOCSIFPHYADDR_IN6 _IOW('i', 62, struct in6_aliasreq)
594#ifdef BSD_KERNEL_PRIVATE
595#define SIOCSIFPHYADDR_IN6_32 _IOW('i', 62, struct in6_aliasreq_32)
596#define SIOCSIFPHYADDR_IN6_64 _IOW('i', 62, struct in6_aliasreq_64)
597#endif /* BSD_KERNEL_PRIVATE */
598#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 63, struct in6_ifreq)
599#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 64, struct in6_ifreq)
600#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
601
602#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
603#ifdef BSD_KERNEL_PRIVATE
604#define SIOCGDRLST_IN6_32 _IOWR('i', 74, struct in6_drlist_32)
605#define SIOCGDRLST_IN6_64 _IOWR('i', 74, struct in6_drlist_64)
606#endif /* BSD_KERNEL_PRIVATE */
607
608#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist)
609#ifdef BSD_KERNEL_PRIVATE
610#define SIOCGPRLST_IN6_32 _IOWR('i', 75, struct in6_prlist_32)
611#define SIOCGPRLST_IN6_64 _IOWR('i', 75, struct in6_prlist_64)
612#endif /* BSD_KERNEL_PRIVATE */
613
614#define OSIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ondireq)
615#define SIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
616#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
617
618#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
619#ifdef BSD_KERNEL_PRIVATE
620#define SIOCGNBRINFO_IN6_32 _IOWR('i', 78, struct in6_nbrinfo_32)
621#define SIOCGNBRINFO_IN6_64 _IOWR('i', 78, struct in6_nbrinfo_64)
622#endif /* BSD_KERNEL_PRIVATE */
623
624#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
625#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
626
627#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
628#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
629#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
630#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
631
632#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
633#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
634#ifdef BSD_KERNEL_PRIVATE
635#define SIOCSDEFIFACE_IN6_32 _IOWR('i', 85, struct in6_ndifreq_32)
636#define SIOCSDEFIFACE_IN6_64 _IOWR('i', 85, struct in6_ndifreq_64)
637#define SIOCGDEFIFACE_IN6_32 _IOWR('i', 86, struct in6_ndifreq_32)
638#define SIOCGDEFIFACE_IN6_64 _IOWR('i', 86, struct in6_ndifreq_64)
639#endif /* BSD_KERNEL_PRIVATE */
640
641#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
642
643/* N.B.: These 3 ioctls are deprecated and won't work */
644#define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
645#define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
646#define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
647
648#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
649#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
650#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
651#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
652
653/* change */
654#define SIOCCIFPREFIX_IN6 _IOW('i', 104, struct in6_rrenumreq)
655
656/* set global */
657#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, struct in6_rrenumreq)
658
659/*
660 * multicast routing, get s/g pkt cnt, pkt cnt per interface.
661 */
662#define SIOCGETSGCNT_IN6 _IOWR('u', 28, struct sioc_sg_req6)
663#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, struct sioc_mif_req6)
664#ifdef BSD_KERNEL_PRIVATE
665#define SIOCGETMIFCNT_IN6_32 _IOWR('u', 107, struct sioc_mif_req6_32)
666#define SIOCGETMIFCNT_IN6_64 _IOWR('u', 107, struct sioc_mif_req6_64)
667#endif /* BSD_KERNEL_PRIVATE */
668
669#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
670#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
671
672#ifdef PRIVATE
673/*
674 * temporary control calls to attach/detach IPv6 to/from an interface.
675 */
676#define SIOCPROTOATTACH_IN6 _IOWR('i', 110, struct in6_aliasreq)
677#ifdef BSD_KERNEL_PRIVATE
678#define SIOCPROTOATTACH_IN6_32 _IOWR('i', 110, struct in6_aliasreq_32)
679#define SIOCPROTOATTACH_IN6_64 _IOWR('i', 110, struct in6_aliasreq_64)
680#endif /* BSD_KERNEL_PRIVATE */
681#define SIOCPROTODETACH_IN6 _IOWR('i', 111, struct in6_ifreq)
682
683/*
684 * start/stop aquiring linklocal on interface
685 */
686#define SIOCLL_START _IOWR('i', 130, struct in6_aliasreq)
687#ifdef BSD_KERNEL_PRIVATE
688#define SIOCLL_START_32 _IOWR('i', 130, struct in6_aliasreq_32)
689#define SIOCLL_START_64 _IOWR('i', 130, struct in6_aliasreq_64)
690#endif /* BSD_KERNEL_PRIVATE */
691#define SIOCLL_STOP _IOWR('i', 131, struct in6_ifreq)
692
693/*
694 * accept rtadvd (and stop accepting) on this interface.
695 */
696#define SIOCAUTOCONF_START _IOWR('i', 132, struct in6_ifreq)
697#define SIOCAUTOCONF_STOP _IOWR('i', 133, struct in6_ifreq)
698
699/*
700 * add/remove default IPv6 router.
701 */
702#define SIOCDRADD_IN6 _IOWR('u', 134, struct in6_defrouter)
703#ifdef BSD_KERNEL_PRIVATE
704#define SIOCDRADD_IN6_32 _IOWR('u', 134, struct in6_defrouter_32)
705#define SIOCDRADD_IN6_64 _IOWR('u', 134, struct in6_defrouter_64)
706#endif /* BSD_KERNEL_PRIVATE */
707#define SIOCDRDEL_IN6 _IOWR('u', 135, struct in6_defrouter)
708#ifdef BSD_KERNEL_PRIVATE
709#define SIOCDRDEL_IN6_32 _IOWR('u', 135, struct in6_defrouter_32)
710#define SIOCDRDEL_IN6_64 _IOWR('u', 135, struct in6_defrouter_64)
711#endif /* BSD_KERNEL_PRIVATE */
712
713/*
714 * enable/disable IPv6 router mode on interface.
715 */
716#define SIOCSETROUTERMODE_IN6 _IOWR('i', 136, struct in6_ifreq)
717
718/*
719 * start secure link-local interface addresses
720 */
721#define SIOCLL_CGASTART _IOW('i', 160, struct in6_cgareq)
722#ifdef BSD_KERNEL_PRIVATE
723#define SIOCLL_CGASTART_32 _IOW('i', 160, struct in6_cgareq_32)
724#define SIOCLL_CGASTART_64 _IOW('i', 160, struct in6_cgareq_64)
725#endif
726
727#define SIOCGIFCGAPREP_IN6 _IOWR('i', 187, struct in6_cgareq)
728#define SIOCSIFCGAPREP_IN6 _IOWR('i', 188, struct in6_cgareq)
729
730#define SIOCCLAT46_START _IOWR('i', 189, struct in6_ifreq)
731#define SIOCCLAT46_STOP _IOWR('i', 190, struct in6_ifreq)
732#endif /* PRIVATE */
733
734#ifdef BSD_KERNEL_PRIVATE
735/*
736 * XXX: Do not extend IN6_IFF values beyond 16-bit. We currently copy the
737 * values from ia6_flags as is into m_pkthdr.{src,dst}_iff which are
738 * defined as 16-bit variables. We can relax this once we define a
739 * unified set of interface flags for {ia,ia6}_flags and perform
740 * translation between those and the publicly-defined ones below.
741 */
742#endif /* BSD_KERNEL_PRIVATE */
743#define IN6_IFF_ANYCAST 0x0001 /* anycast address */
744#define IN6_IFF_TENTATIVE 0x0002 /* tentative address */
745#define IN6_IFF_DUPLICATED 0x0004 /* DAD detected duplicate */
746#define IN6_IFF_DETACHED 0x0008 /* may be detached from the link */
747#define IN6_IFF_DEPRECATED 0x0010 /* deprecated address */
748
749/* don't perform DAD on this address (used only at first SIOC* call) */
750#define IN6_IFF_NODAD 0x0020
751
752#define IN6_IFF_AUTOCONF 0x0040 /* autoconfigurable address. */
753#define IN6_IFF_TEMPORARY 0x0080 /* temporary (anonymous) address. */
754#define IN6_IFF_DYNAMIC 0x0100 /* assigned by DHCPv6 service */
755#define IN6_IFF_OPTIMISTIC 0x0200 /* optimistic DAD, i.e. RFC 4429 */
756#define IN6_IFF_SECURED 0x0400 /* cryptographically generated */
757#ifdef PRIVATE
758#define IN6_IFF_SWIFTDAD 0x0800 /* DAD with no delay */
759#endif
760#define IN6_IFF_CLAT46 0x1000 /* Address reserved for CLAT46 */
761#define IN6_IFF_NOPFX 0x8000 /* Depreciated. Don't use. */
762
763/* Duplicate Address Detection [DAD] in progress. */
764#define IN6_IFF_DADPROGRESS (IN6_IFF_TENTATIVE|IN6_IFF_OPTIMISTIC)
765
766/* do not input/output */
767#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
768
769/* SLAAC/DHCPv6 address */
770#define IN6_IFF_NOTMANUAL (IN6_IFF_AUTOCONF|IN6_IFF_DYNAMIC)
771
772#ifdef KERNEL
773#define IN6_ARE_SCOPE_CMP(a, b) ((a) - (b))
774#define IN6_ARE_SCOPE_EQUAL(a, b) ((a) == (b))
775#endif /* KERNEL */
776
777#ifdef BSD_KERNEL_PRIVATE
778extern struct in6_ifaddr *in6_ifaddrs;
779
780extern struct icmp6stat icmp6stat;
781extern lck_rw_t in6_ifaddr_rwlock;
782extern lck_mtx_t proxy6_lock;
783extern u_char inet6ctlerrmap[];
784extern u_int32_t in6_maxmtu;
785
786/* N.B.: if_inet6data is never freed once set, so we don't need to lock */
787#define in6_ifstat_inc_common(_ifp, _tag, _atomic) do { \
788 if (_ifp != NULL && IN6_IFEXTRA(_ifp) != NULL) { \
789 if (_atomic) \
790 atomic_add_64( \
791 &IN6_IFEXTRA(_ifp)->in6_ifstat._tag, 1); \
792 else \
793 IN6_IFEXTRA(_ifp)->in6_ifstat._tag++; \
794 } \
795} while (0)
796
797/* atomic version */
798#define in6_ifstat_inc(_ifp, _tag) \
799 in6_ifstat_inc_common(_ifp, _tag, TRUE)
800
801/* non-atomic version (for fast paths) */
802#define in6_ifstat_inc_na(_ifp, _tag) \
803 in6_ifstat_inc_common(_ifp, _tag, FALSE)
804
805/*
806 * Macro for finding the internet address structure (in6_ifaddr) corresponding
807 * to a given interface (ifnet structure).
808 */
809
810#define IFP_TO_IA6(ifp, ia) \
811 /* struct ifnet *ifp; */ \
812 /* struct in6_ifaddr *ia; */ \
813do { \
814 struct ifaddr *_ifa; \
815 ifnet_lock_assert(ifp, LCK_RW_ASSERT_HELD); \
816 for (_ifa = (ifp)->if_addrlist.tqh_first; _ifa != NULL; \
817 _ifa = _ifa->ifa_list.tqe_next) { \
818 IFA_LOCK(_ifa); \
819 if (_ifa->ifa_addr->sa_family == AF_INET6) { \
820 IFA_ADDREF_LOCKED(_ifa); \
821 IFA_UNLOCK(_ifa); \
822 break; \
823 } \
824 IFA_UNLOCK(_ifa); \
825 } \
826 (ia) = (struct in6_ifaddr *)_ifa; \
827} while (0)
828
829/*
830 * IPv6 multicast MLD-layer source entry.
831 */
832struct ip6_msource {
833 RB_ENTRY(ip6_msource) im6s_link; /* RB tree links */
834 struct in6_addr im6s_addr;
835 struct im6s_st {
836 uint16_t ex; /* # of exclusive members */
837 uint16_t in; /* # of inclusive members */
838 } im6s_st[2]; /* state at t0, t1 */
839 uint8_t im6s_stp; /* pending query */
840};
841
842RB_HEAD(ip6_msource_tree, ip6_msource);
843
844RB_PROTOTYPE_SC_PREV(__private_extern__, ip6_msource_tree, ip6_msource,
845 im6s_link, ip6_msource_cmp);
846
847/*
848 * IPv6 multicast PCB-layer source entry.
849 *
850 * NOTE: overlapping use of struct ip6_msource fields at start.
851 */
852struct in6_msource {
853 RB_ENTRY(ip6_msource) im6s_link; /* Common field */
854 struct in6_addr im6s_addr; /* Common field */
855 uint8_t im6sl_st[2]; /* state before/at commit */
856};
857
858/*
859 * IPv6 multicast PCB-layer group filter descriptor.
860 */
861struct in6_mfilter {
862 struct ip6_msource_tree im6f_sources; /* source list for (S,G) */
863 u_long im6f_nsrc; /* # of source entries */
864 uint8_t im6f_st[2]; /* state before/at commit */
865};
866
867/*
868 * Legacy KAME IPv6 multicast membership descriptor.
869 */
870struct in6_multi_mship {
871 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
872 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
873};
874
875#ifdef BSD_KERNEL_PRIVATE
876#include <netinet6/nd6_var.h>
877#include <net/if_llatbl.h>
878
879/*
880 * Per-interface IPv6 structures.
881 */
882struct in6_ifextra {
883 struct scope6_id scope6_id;
884 struct in6_ifstat in6_ifstat;
885 struct icmp6_ifstat icmp6_ifstat;
886 struct nd_ifinfo nd_ifinfo;
887 uint32_t netsig_len;
888 u_int8_t netsig[IFNET_SIGNATURELEN];
889 struct ipv6_prefix nat64_prefixes[NAT64_MAX_NUM_PREFIXES];
890 struct lltable *ii_llt; /* NDP state */
891};
892#define IN6_IFEXTRA(_ifp) ((struct in6_ifextra *)(_ifp->if_inet6data))
893#define LLTABLE6(ifp) ((IN6_IFEXTRA(ifp) == NULL) ? NULL : IN6_IFEXTRA(ifp)->ii_llt)
894#endif /* BSD_KERNEL_PRIVATE */
895
896struct mld_ifinfo;
897
898/*
899 * IPv6 group descriptor.
900 *
901 * For every entry on an ifnet's if_multiaddrs list which represents
902 * an IP multicast group, there is one of these structures.
903 *
904 * If any source filters are present, then a node will exist in the RB-tree
905 * to permit fast lookup by source whenever an operation takes place.
906 * This permits pre-order traversal when we issue reports.
907 * Source filter trees are kept separately from the socket layer to
908 * greatly simplify locking.
909 *
910 * When MLDv2 is active, in6m_timer is the response to group query timer.
911 * The state-change timer in6m_sctimer is separate; whenever state changes
912 * for the group the state change record is generated and transmitted,
913 * and kept if retransmissions are necessary.
914 *
915 * The request count here is a count of requests for this address, not a
916 * count of pointers to this structure.
917 *
918 * FUTURE: in6m_entry is now only used when groups are being purged
919 * on a detaching ifnet. It could be demoted to a SLIST_ENTRY.
920 */
921struct in6_multi {
922 decl_lck_mtx_data(, in6m_lock);
923 u_int32_t in6m_refcount; /* reference count */
924 u_int32_t in6m_reqcnt; /* request count for this address */
925 u_int32_t in6m_debug; /* see ifa_debug flags */
926 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
927 struct in6_addr in6m_addr; /* IP6 multicast address */
928 struct ifnet *in6m_ifp; /* back pointer to ifnet */
929 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
930 u_int in6m_state; /* state of the membership */
931 u_int in6m_timer; /* MLD6 listener report timer */
932
933 /* New fields for MLDv2 follow. */
934 struct mld_ifinfo *in6m_mli; /* MLD info */
935 SLIST_ENTRY(in6_multi) in6m_dtle; /* detached waiting for rele */
936 SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */
937 u_int32_t in6m_nrelecnt; /* deferred release count */
938 struct ip6_msource_tree in6m_srcs; /* tree of sources */
939 u_long in6m_nsrc; /* # of tree entries */
940
941 struct ifqueue in6m_scq; /* pending state-change packets */
942 struct timeval in6m_lastgsrtv; /* last G-S-R query */
943 uint16_t in6m_sctimer; /* state-change timer */
944 uint16_t in6m_scrv; /* state-change rexmit count */
945
946 /*
947 * SSM state counters which track state at T0 (the time the last
948 * state-change report's RV timer went to zero) and T1
949 * (time of pending report, i.e. now).
950 * Used for computing MLDv2 state-change reports. Several refcounts
951 * are maintained here to optimize for common use-cases.
952 */
953 struct in6m_st {
954 uint16_t iss_fmode; /* MLD filter mode */
955 uint16_t iss_asm; /* # of ASM listeners */
956 uint16_t iss_ex; /* # of exclusive members */
957 uint16_t iss_in; /* # of inclusive members */
958 uint16_t iss_rec; /* # of recorded sources */
959 } in6m_st[2]; /* state at t0, t1 */
960
961 void (*in6m_trace) /* callback fn for tracing refs */
962 (struct in6_multi *, int);
963};
964
965#define IN6M_LOCK_ASSERT_HELD(_in6m) \
966 LCK_MTX_ASSERT(&(_in6m)->in6m_lock, LCK_MTX_ASSERT_OWNED)
967
968#define IN6M_LOCK_ASSERT_NOTHELD(_in6m) \
969 LCK_MTX_ASSERT(&(_in6m)->in6m_lock, LCK_MTX_ASSERT_NOTOWNED)
970
971#define IN6M_LOCK(_in6m) \
972 lck_mtx_lock(&(_in6m)->in6m_lock)
973
974#define IN6M_LOCK_SPIN(_in6m) \
975 lck_mtx_lock_spin(&(_in6m)->in6m_lock)
976
977#define IN6M_CONVERT_LOCK(_in6m) do { \
978 IN6M_LOCK_ASSERT_HELD(_in6m); \
979 lck_mtx_convert_spin(&(_in6m)->in6m_lock); \
980} while (0)
981
982#define IN6M_UNLOCK(_in6m) \
983 lck_mtx_unlock(&(_in6m)->in6m_lock)
984
985#define IN6M_ADDREF(_in6m) \
986 in6m_addref(_in6m, 0)
987
988#define IN6M_ADDREF_LOCKED(_in6m) \
989 in6m_addref(_in6m, 1)
990
991#define IN6M_REMREF(_in6m) \
992 in6m_remref(_in6m, 0)
993
994#define IN6M_REMREF_LOCKED(_in6m) \
995 in6m_remref(_in6m, 1)
996
997/* flags to in6_update_ifa */
998#define IN6_IFAUPDATE_NOWAIT 0x1 /* don't block allocating memory */
999#define IN6_IFAUPDATE_1STADDR 0x2 /* first address on interface */
1000#define IN6_IFAUPDATE_NEWADDR 0x4 /* new address on interface */
1001#define IN6_IFAUPDATE_DADDELAY 0x8 /* must delay initial DAD probe */
1002
1003struct ip6_moptions;
1004struct sockopt;
1005struct inpcb;
1006
1007extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
1008
1009/*
1010 * Structure used by macros below to remember position when stepping through
1011 * all of the in6_multi records.
1012 */
1013struct in6_multistep {
1014 struct in6_ifaddr *i_ia;
1015 struct in6_multi *i_in6m;
1016};
1017
1018/*
1019 * Macros for looking up the in6_multi record for a given IP6 multicast
1020 * address on a given interface. If no matching record is found, "in6m"
1021 * returns NULL.
1022 *
1023 * We do this differently compared other BSD implementations; instead of
1024 * walking the if_multiaddrs list at the interface and returning the
1025 * ifma_protospec value of a matching entry, we search the global list
1026 * of in6_multi records and find it that way. Otherwise either the two
1027 * structures (in6_multi, ifmultiaddr) need to be ref counted both ways,
1028 * which will make things too complicated, or they need to reside in the
1029 * same protected domain, which they aren't.
1030 *
1031 * Must be called with in6_multihead_lock held.
1032 */
1033#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
1034 /* struct in6_addr *addr; */ \
1035 /* struct ifnet *ifp; */ \
1036 /* struct in6_multi *in6m; */ \
1037do { \
1038 struct in6_multistep _step; \
1039 IN6_FIRST_MULTI(_step, in6m); \
1040 while ((in6m) != NULL) { \
1041 IN6M_LOCK_SPIN(in6m); \
1042 if ((in6m)->in6m_ifp == (ifp) && \
1043 IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, (addr))) { \
1044 IN6M_ADDREF_LOCKED(in6m); \
1045 IN6M_UNLOCK(in6m); \
1046 break; \
1047 } \
1048 IN6M_UNLOCK(in6m); \
1049 IN6_NEXT_MULTI(_step, in6m); \
1050 } \
1051} while (0)
1052
1053/*
1054 * Macro to step through all of the in6_multi records, one at a time.
1055 * The current position is remembered in "step", which the caller must
1056 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
1057 * and get the first record. Both macros return a NULL "in6m" when there
1058 * are no remaining records.
1059 *
1060 * Must be called with in6_multihead_lock held.
1061 */
1062#define IN6_NEXT_MULTI(step, in6m) \
1063 /* struct in6_multistep step; */ \
1064 /* struct in6_multi *in6m; */ \
1065do { \
1066 in6_multihead_lock_assert(LCK_RW_ASSERT_HELD); \
1067 if (((in6m) = (step).i_in6m) != NULL) \
1068 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
1069} while (0)
1070
1071#define IN6_FIRST_MULTI(step, in6m) \
1072 /* struct in6_multistep step; */ \
1073 /* struct in6_multi *in6m */ \
1074do { \
1075 in6_multihead_lock_assert(LCK_RW_ASSERT_HELD); \
1076 (step).i_in6m = in6_multihead.lh_first; \
1077 IN6_NEXT_MULTI((step), (in6m)); \
1078} while (0)
1079
1080extern lck_mtx_t *inet6_domain_mutex;
1081extern struct domain *inet6domain;
1082
1083struct ip6_pktopts;
1084
1085/* Multicast private KPIs. */
1086extern int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *,
1087 const struct sockaddr_in6 *, const struct sockaddr_in6 *);
1088extern int in6_mc_join(struct ifnet *, const struct in6_addr *,
1089 struct in6_mfilter *, struct in6_multi **, int);
1090extern int in6_mc_leave(struct in6_multi *, struct in6_mfilter *);
1091extern void in6m_clear_recorded(struct in6_multi *);
1092extern void in6m_commit(struct in6_multi *);
1093extern void in6m_purge(struct in6_multi *);
1094extern void in6m_print(const struct in6_multi *);
1095extern int in6m_record_source(struct in6_multi *, const struct in6_addr *);
1096extern int ip6_getmoptions(struct inpcb *, struct sockopt *);
1097extern int ip6_setmoptions(struct inpcb *, struct sockopt *);
1098/* Legacy KAME multicast private KPIs. */
1099extern struct in6_multi_mship *in6_joingroup(struct ifnet *,
1100 struct in6_addr *, int *, int);
1101extern int in6_leavegroup(struct in6_multi_mship *);
1102extern void in6_multi_init(void);
1103extern void in6m_addref(struct in6_multi *, int);
1104extern void in6m_remref(struct in6_multi *, int);
1105extern int in6_multi_detach(struct in6_multi *);
1106extern int in6_ifindex2scopeid(int);
1107extern int in6_mask2len(struct in6_addr *, u_char *);
1108extern void in6_len2mask(struct in6_addr *, int);
1109extern int in6_control(struct socket *, u_long, caddr_t, struct ifnet *,
1110 struct proc *);
1111extern int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, int,
1112 struct in6_ifaddr **);
1113extern void in6_purgeaddr(struct ifaddr *);
1114extern int in6if_do_dad(struct ifnet *);
1115extern void in6_purgeif(struct ifnet *);
1116extern void in6_savemkludge(struct in6_ifaddr *);
1117extern void in6_setmaxmtu(void);
1118extern void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *);
1119extern void in6_purgemkludge(struct ifnet *);
1120extern struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int);
1121extern struct in6_ifaddr *in6ifa_ifpwithflag(struct ifnet *, int);
1122extern struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, struct in6_addr *);
1123extern struct in6_ifaddr *in6ifa_prproxyaddr(struct in6_addr *);
1124extern void in6ifa_getlifetime(struct in6_ifaddr *,
1125 struct in6_addrlifetime *, int);
1126extern void in6ifa_setlifetime(struct in6_ifaddr *, struct in6_addrlifetime *);
1127extern char *ip6_sprintf(const struct in6_addr *);
1128extern int in6_addr2scopeid(struct ifnet *, struct in6_addr *);
1129extern int in6_matchlen(struct in6_addr *, struct in6_addr *);
1130extern int in6_are_prefix_equal(struct in6_addr *p1, struct in6_addr *p2,
1131 int len);
1132extern void in6_prefixlen2mask(struct in6_addr *maskp, int len);
1133extern int in6_prefix_add_ifid(int iilen, struct in6_ifaddr *ia);
1134extern void in6_prefix_remove_ifid(int iilen, struct in6_ifaddr *ia);
1135extern void in6_purgeprefix(struct ifnet *);
1136extern void in6_purgeaddrs(struct ifnet *);
1137extern uint8_t im6s_get_mode(const struct in6_multi *,
1138 const struct ip6_msource *, uint8_t);
1139extern void im6f_leave(struct in6_mfilter *);
1140extern void im6f_purge(struct in6_mfilter *);
1141extern int in6_embedscope(struct in6_addr *, const struct sockaddr_in6 *,
1142 struct inpcb *, struct ifnet **, struct ip6_pktopts *);
1143extern int in6_recoverscope(struct sockaddr_in6 *, const struct in6_addr *,
1144 struct ifnet *);
1145extern void in6_aliasreq_64_to_32(struct in6_aliasreq_64 *,
1146 struct in6_aliasreq_32 *);
1147extern void in6_aliasreq_32_to_64(struct in6_aliasreq_32 *,
1148 struct in6_aliasreq_64 *);
1149extern void in6_ifaddr_init(void);
1150extern int in6_inithead(void **, int);
1151extern void in6_rtqdrain(void);
1152extern struct radix_node *in6_validate(struct radix_node *);
1153extern int in6_if2idlen(struct ifnet *);
1154extern int in6_src_ioctl(u_long, caddr_t);
1155extern void in6_multihead_lock_exclusive(void);
1156extern void in6_multihead_lock_shared(void);
1157extern void in6_multihead_lock_assert(int);
1158extern void in6_multihead_lock_done(void);
1159
1160extern void in6_cga_init(void);
1161extern void in6_cga_node_lock(void);
1162extern void in6_cga_node_unlock(void);
1163extern void in6_cga_query(struct in6_cga_nodecfg *);
1164extern int in6_cga_start(const struct in6_cga_nodecfg *);
1165extern int in6_cga_stop(void);
1166extern ssize_t in6_cga_parameters_prepare(void *, size_t,
1167 const struct in6_addr *, u_int8_t, const struct in6_cga_modifier *);
1168extern int in6_cga_generate(struct in6_cga_prepare *, u_int8_t,
1169 struct in6_addr *);
1170extern int in6_getconninfo(struct socket *, sae_connid_t, uint32_t *,
1171 uint32_t *, int32_t *, user_addr_t, socklen_t *,
1172 user_addr_t, socklen_t *, uint32_t *, user_addr_t, uint32_t *);
1173extern void in6_ip6_to_sockaddr(const struct in6_addr *ip6, u_int16_t port,
1174 struct sockaddr_in6 *sin6, u_int32_t maxlen);
1175
1176#endif /* BSD_KERNEL_PRIVATE */
1177#endif /* _NETINET6_IN6_VAR_H_ */
1178