1/*-
2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $
30 */
31
32/*-
33 * Copyright (c) 1985, 1986, 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 4. Neither the name of the University nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 * @(#)in_var.h 8.1 (Berkeley) 6/10/93
| 1/*-
2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $
30 */
31
32/*-
33 * Copyright (c) 1985, 1986, 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 4. Neither the name of the University nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 * @(#)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/tree.h>
68
69#ifdef _KERNEL
70#include <sys/libkern.h>
71#endif
72
73/*
74 * Interface address, Internet version. One of these structures
75 * is allocated for each interface with an Internet address.
76 * The ifaddr structure contains the protocol-independent part
77 * of the structure and is assumed to be first.
78 */
79
80/*
81 * pltime/vltime are just for future reference (required to implements 2
82 * hour rule for hosts). they should never be modified by nd6_timeout or
83 * anywhere else.
84 * userland -> kernel: accept pltime/vltime
85 * kernel -> userland: throw up everything
86 * in kernel: modify preferred/expire only
87 */
88struct in6_addrlifetime {
89 time_t ia6t_expire; /* valid lifetime expiration time */
90 time_t ia6t_preferred; /* preferred lifetime expiration time */
91 u_int32_t ia6t_vltime; /* valid lifetime */
92 u_int32_t ia6t_pltime; /* prefix lifetime */
93};
94
95struct nd_ifinfo;
96struct scope6_id;
97struct lltable;
98struct mld_ifinfo;
99
100struct in6_ifextra {
101 struct in6_ifstat *in6_ifstat;
102 struct icmp6_ifstat *icmp6_ifstat;
103 struct nd_ifinfo *nd_ifinfo;
104 struct scope6_id *scope6_id;
105 struct lltable *lltable;
106 struct mld_ifinfo *mld_ifinfo;
107};
108
109#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable)
110
111struct in6_ifaddr {
112 struct ifaddr ia_ifa; /* protocol-independent info */
113#define ia_ifp ia_ifa.ifa_ifp
114#define ia_flags ia_ifa.ifa_flags
115 struct sockaddr_in6 ia_addr; /* interface address */
116 struct sockaddr_in6 ia_net; /* network number of interface */
117 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
118 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
119 u_int32_t ia_plen; /* prefix length */
120 TAILQ_ENTRY(in6_ifaddr) ia_link; /* list of IPv6 addresses */
121 int ia6_flags;
122
123 struct in6_addrlifetime ia6_lifetime;
124 time_t ia6_createtime; /* the creation time of this address, which is
125 * currently used for temporary addresses only.
126 */
127 time_t ia6_updatetime;
128
129 /* back pointer to the ND prefix (for autoconfigured addresses only) */
130 struct nd_prefix *ia6_ndpr;
131
132 /* multicast addresses joined from the kernel */
133 LIST_HEAD(, in6_multi_mship) ia6_memberships;
134};
135
136/* List of in6_ifaddr's. */
137TAILQ_HEAD(in6_ifaddrhead, in6_ifaddr);
138
139/* control structure to manage address selection policy */
140struct in6_addrpolicy {
141 struct sockaddr_in6 addr; /* prefix address */
142 struct sockaddr_in6 addrmask; /* prefix mask */
143 int preced; /* precedence */
144 int label; /* matching label */
145 u_quad_t use; /* statistics */
146};
147
148/*
149 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
150 */
151struct in6_ifstat {
152 u_quad_t ifs6_in_receive; /* # of total input datagram */
153 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
154 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
155 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
156 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
157 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
158 /* NOTE: increment on final dst if */
159 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
160 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
161 /* NOTE: fragment timeout is not here */
162 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
163 /* NOTE: increment on final dst if */
164 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
165 /* NOTE: increment on outgoing if */
166 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
167 /* NOTE: does not include forwrads */
168 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
169 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
170 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
171 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
172 /* NOTE: this is # after fragment */
173 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
174 /* NOTE: increment on final dst if */
175 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
176 /* NOTE: this is # after reass */
177 /* NOTE: increment on final dst if */
178 u_quad_t ifs6_reass_fail; /* # of reass failures */
179 /* NOTE: may not be packet count */
180 /* NOTE: increment on final dst if */
181 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
182 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
183};
184
185/*
186 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
187 * XXX: I'm not sure if this file is the right place for this structure...
188 */
189struct icmp6_ifstat {
190 /*
191 * Input statistics
192 */
193 /* ipv6IfIcmpInMsgs, total # of input messages */
194 u_quad_t ifs6_in_msg;
195 /* ipv6IfIcmpInErrors, # of input error messages */
196 u_quad_t ifs6_in_error;
197 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
198 u_quad_t ifs6_in_dstunreach;
199 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
200 u_quad_t ifs6_in_adminprohib;
201 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
202 u_quad_t ifs6_in_timeexceed;
203 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
204 u_quad_t ifs6_in_paramprob;
205 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
206 u_quad_t ifs6_in_pkttoobig;
207 /* ipv6IfIcmpInEchos, # of input echo requests */
208 u_quad_t ifs6_in_echo;
209 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
210 u_quad_t ifs6_in_echoreply;
211 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
212 u_quad_t ifs6_in_routersolicit;
213 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
214 u_quad_t ifs6_in_routeradvert;
215 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
216 u_quad_t ifs6_in_neighborsolicit;
217 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
218 u_quad_t ifs6_in_neighboradvert;
219 /* ipv6IfIcmpInRedirects, # of input redirects */
220 u_quad_t ifs6_in_redirect;
221 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
222 u_quad_t ifs6_in_mldquery;
223 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
224 u_quad_t ifs6_in_mldreport;
225 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
226 u_quad_t ifs6_in_mlddone;
227
228 /*
229 * Output statistics. We should solve unresolved routing problem...
230 */
231 /* ipv6IfIcmpOutMsgs, total # of output messages */
232 u_quad_t ifs6_out_msg;
233 /* ipv6IfIcmpOutErrors, # of output error messages */
234 u_quad_t ifs6_out_error;
235 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
236 u_quad_t ifs6_out_dstunreach;
237 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
238 u_quad_t ifs6_out_adminprohib;
239 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
240 u_quad_t ifs6_out_timeexceed;
241 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
242 u_quad_t ifs6_out_paramprob;
243 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
244 u_quad_t ifs6_out_pkttoobig;
245 /* ipv6IfIcmpOutEchos, # of output echo requests */
246 u_quad_t ifs6_out_echo;
247 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
248 u_quad_t ifs6_out_echoreply;
249 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
250 u_quad_t ifs6_out_routersolicit;
251 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
252 u_quad_t ifs6_out_routeradvert;
253 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
254 u_quad_t ifs6_out_neighborsolicit;
255 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
256 u_quad_t ifs6_out_neighboradvert;
257 /* ipv6IfIcmpOutRedirects, # of output redirects */
258 u_quad_t ifs6_out_redirect;
259 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
260 u_quad_t ifs6_out_mldquery;
261 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
262 u_quad_t ifs6_out_mldreport;
263 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
264 u_quad_t ifs6_out_mlddone;
265};
266
267struct in6_ifreq {
268 char ifr_name[IFNAMSIZ];
269 union {
270 struct sockaddr_in6 ifru_addr;
271 struct sockaddr_in6 ifru_dstaddr;
272 int ifru_flags;
273 int ifru_flags6;
274 int ifru_metric;
275 caddr_t ifru_data;
276 struct in6_addrlifetime ifru_lifetime;
277 struct in6_ifstat ifru_stat;
278 struct icmp6_ifstat ifru_icmp6stat;
279 u_int32_t ifru_scope_id[16];
280 } ifr_ifru;
281};
282
283struct in6_aliasreq {
284 char ifra_name[IFNAMSIZ];
285 struct sockaddr_in6 ifra_addr;
286 struct sockaddr_in6 ifra_dstaddr;
287 struct sockaddr_in6 ifra_prefixmask;
288 int ifra_flags;
289 struct in6_addrlifetime ifra_lifetime;
290 int ifra_vhid;
291};
292
293/* pre-10.x compat */
294struct oin6_aliasreq {
295 char ifra_name[IFNAMSIZ];
296 struct sockaddr_in6 ifra_addr;
297 struct sockaddr_in6 ifra_dstaddr;
298 struct sockaddr_in6 ifra_prefixmask;
299 int ifra_flags;
300 struct in6_addrlifetime ifra_lifetime;
301};
302
303/* prefix type macro */
304#define IN6_PREFIX_ND 1
305#define IN6_PREFIX_RR 2
306
307/*
308 * prefix related flags passed between kernel(NDP related part) and
309 * user land command(ifconfig) and daemon(rtadvd).
310 */
311struct in6_prflags {
312 struct prf_ra {
313 u_char onlink : 1;
314 u_char autonomous : 1;
315 u_char reserved : 6;
316 } prf_ra;
317 u_char prf_reserved1;
318 u_short prf_reserved2;
319 /* want to put this on 4byte offset */
320 struct prf_rr {
321 u_char decrvalid : 1;
322 u_char decrprefd : 1;
323 u_char reserved : 6;
324 } prf_rr;
325 u_char prf_reserved3;
326 u_short prf_reserved4;
327};
328
329struct in6_prefixreq {
330 char ipr_name[IFNAMSIZ];
331 u_char ipr_origin;
332 u_char ipr_plen;
333 u_int32_t ipr_vltime;
334 u_int32_t ipr_pltime;
335 struct in6_prflags ipr_flags;
336 struct sockaddr_in6 ipr_prefix;
337};
338
339#define PR_ORIG_RA 0
340#define PR_ORIG_RR 1
341#define PR_ORIG_STATIC 2
342#define PR_ORIG_KERNEL 3
343
344#define ipr_raf_onlink ipr_flags.prf_ra.onlink
345#define ipr_raf_auto ipr_flags.prf_ra.autonomous
346
347#define ipr_statef_onlink ipr_flags.prf_state.onlink
348
349#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
350#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
351
352struct in6_rrenumreq {
353 char irr_name[IFNAMSIZ];
354 u_char irr_origin;
355 u_char irr_m_len; /* match len for matchprefix */
356 u_char irr_m_minlen; /* minlen for matching prefix */
357 u_char irr_m_maxlen; /* maxlen for matching prefix */
358 u_char irr_u_uselen; /* uselen for adding prefix */
359 u_char irr_u_keeplen; /* keeplen from matching prefix */
360 struct irr_raflagmask {
361 u_char onlink : 1;
362 u_char autonomous : 1;
363 u_char reserved : 6;
364 } irr_raflagmask;
365 u_int32_t irr_vltime;
366 u_int32_t irr_pltime;
367 struct in6_prflags irr_flags;
368 struct sockaddr_in6 irr_matchprefix;
369 struct sockaddr_in6 irr_useprefix;
370};
371
372#define irr_raf_mask_onlink irr_raflagmask.onlink
373#define irr_raf_mask_auto irr_raflagmask.autonomous
374#define irr_raf_mask_reserved irr_raflagmask.reserved
375
376#define irr_raf_onlink irr_flags.prf_ra.onlink
377#define irr_raf_auto irr_flags.prf_ra.autonomous
378
379#define irr_statef_onlink irr_flags.prf_state.onlink
380
381#define irr_rrf irr_flags.prf_rr
382#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
383#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
384
385/*
386 * Given a pointer to an in6_ifaddr (ifaddr),
387 * return a pointer to the addr as a sockaddr_in6
388 */
389#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
390#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
391#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
392#define IA6_SIN6(ia) (&((ia)->ia_addr))
393#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
394#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
395#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
396
397#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
398
399#ifdef _KERNEL
400#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
401 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
402 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
403 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
404 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
405#endif
406
407#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
408#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
409
410#ifdef _KERNEL
411/*
412 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
413 * we do not shift numbers for binary compatibility.
414 */
415#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
416#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
417#endif
418
419#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
420#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
421
422#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
423#define OSIOCAIFADDR_IN6 _IOW('i', 26, struct oin6_aliasreq)
424#define SIOCAIFADDR_IN6 _IOW('i', 27, struct in6_aliasreq)
425
426#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
427#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
428#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
429
430#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
431
432#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
433#ifdef _KERNEL
434/* XXX: SIOCGPRLST_IN6 is exposed in KAME but in6_oprlist is not. */
435#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist)
436#endif
437#ifdef _KERNEL
438#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
439#endif
440#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
441#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq)
442#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
443#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
444#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
445#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
446
447#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
448#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
449#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
450#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
451
452#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
453#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
454
455#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
456
457#define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
458#define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
459#define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
460
461#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
462#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
463#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
464#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
465#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
466 struct in6_rrenumreq) /* change */
467#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
468 struct in6_rrenumreq) /* set global */
469
470#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
471 struct sioc_sg_req6) /* get s,g pkt cnt */
472#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
473 struct sioc_mif_req6) /* get pkt cnt per if */
474
475#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
476#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
477
478#define IN6_IFF_ANYCAST 0x01 /* anycast address */
479#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
480#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
481#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
482#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
483#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
484 * (used only at first SIOC* call)
485 */
486#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
487#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
488#define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management.
489 * XXX: this should be temporary.
490 */
491
492/* do not input/output */
493#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
494
495#ifdef _KERNEL
496#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
497#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
498#endif
499
500#ifdef _KERNEL
501VNET_DECLARE(struct in6_ifaddrhead, in6_ifaddrhead);
502#define V_in6_ifaddrhead VNET(in6_ifaddrhead)
503
504extern struct rwlock in6_ifaddr_lock;
505#define IN6_IFADDR_LOCK_ASSERT( ) rw_assert(&in6_ifaddr_lock, RA_LOCKED)
506#define IN6_IFADDR_RLOCK() rw_rlock(&in6_ifaddr_lock)
507#define IN6_IFADDR_RLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_RLOCKED)
508#define IN6_IFADDR_RUNLOCK() rw_runlock(&in6_ifaddr_lock)
509#define IN6_IFADDR_WLOCK() rw_wlock(&in6_ifaddr_lock)
510#define IN6_IFADDR_WLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_WLOCKED)
511#define IN6_IFADDR_WUNLOCK() rw_wunlock(&in6_ifaddr_lock)
512
513VNET_DECLARE(struct icmp6stat, icmp6stat);
514#define V_icmp6stat VNET(icmp6stat)
515#define in6_ifstat_inc(ifp, tag) \
516do { \
517 if (ifp) \
518 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
519} while (/*CONSTCOND*/ 0)
520
521extern struct in6_addr zeroin6_addr;
522extern u_char inet6ctlerrmap[];
523VNET_DECLARE(unsigned long, in6_maxmtu);
524#define V_in6_maxmtu VNET(in6_maxmtu)
525#endif /* _KERNEL */
526
527/*
528 * IPv6 multicast MLD-layer source entry.
529 */
530struct ip6_msource {
531 RB_ENTRY(ip6_msource) im6s_link; /* RB tree links */
532 struct in6_addr im6s_addr;
533 struct im6s_st {
534 uint16_t ex; /* # of exclusive members */
535 uint16_t in; /* # of inclusive members */
536 } im6s_st[2]; /* state at t0, t1 */
537 uint8_t im6s_stp; /* pending query */
538};
539RB_HEAD(ip6_msource_tree, ip6_msource);
540
541/*
542 * IPv6 multicast PCB-layer source entry.
543 *
544 * NOTE: overlapping use of struct ip6_msource fields at start.
545 */
546struct in6_msource {
547 RB_ENTRY(ip6_msource) im6s_link; /* Common field */
548 struct in6_addr im6s_addr; /* Common field */
549 uint8_t im6sl_st[2]; /* state before/at commit */
550};
551
552#ifdef _KERNEL
553/*
554 * IPv6 source tree comparison function.
555 *
556 * An ordered predicate is necessary; bcmp() is not documented to return
557 * an indication of order, memcmp() is, and is an ISO C99 requirement.
558 */
559static __inline int
560ip6_msource_cmp(const struct ip6_msource *a, const struct ip6_msource *b)
561{
562
563 return (memcmp(&a->im6s_addr, &b->im6s_addr, sizeof(struct in6_addr)));
564}
565RB_PROTOTYPE(ip6_msource_tree, ip6_msource, im6s_link, ip6_msource_cmp);
566#endif /* _KERNEL */
567
568/*
569 * IPv6 multicast PCB-layer group filter descriptor.
570 */
571struct in6_mfilter {
572 struct ip6_msource_tree im6f_sources; /* source list for (S,G) */
573 u_long im6f_nsrc; /* # of source entries */
574 uint8_t im6f_st[2]; /* state before/at commit */
575};
576
577/*
578 * Legacy KAME IPv6 multicast membership descriptor.
579 */
580struct in6_multi_mship {
581 struct in6_multi *i6mm_maddr;
582 LIST_ENTRY(in6_multi_mship) i6mm_chain;
583};
584
585/*
586 * IPv6 group descriptor.
587 *
588 * For every entry on an ifnet's if_multiaddrs list which represents
589 * an IP multicast group, there is one of these structures.
590 *
591 * If any source filters are present, then a node will exist in the RB-tree
592 * to permit fast lookup by source whenever an operation takes place.
593 * This permits pre-order traversal when we issue reports.
594 * Source filter trees are kept separately from the socket layer to
595 * greatly simplify locking.
596 *
597 * When MLDv2 is active, in6m_timer is the response to group query timer.
598 * The state-change timer in6m_sctimer is separate; whenever state changes
599 * for the group the state change record is generated and transmitted,
600 * and kept if retransmissions are necessary.
601 *
602 * FUTURE: in6m_link is now only used when groups are being purged
603 * on a detaching ifnet. It could be demoted to a SLIST_ENTRY, but
604 * because it is at the very start of the struct, we can't do this
605 * w/o breaking the ABI for ifmcstat.
606 */
607struct in6_multi {
608 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
609 struct in6_addr in6m_addr; /* IPv6 multicast address */
610 struct ifnet *in6m_ifp; /* back pointer to ifnet */
611 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
612 u_int in6m_refcount; /* reference count */
613 u_int in6m_state; /* state of the membership */
614 u_int in6m_timer; /* MLD6 listener report timer */
615
616 /* New fields for MLDv2 follow. */
617 struct mld_ifinfo *in6m_mli; /* MLD info */
618 SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */
619 struct ip6_msource_tree in6m_srcs; /* tree of sources */
620 u_long in6m_nsrc; /* # of tree entries */
621
622 struct ifqueue in6m_scq; /* queue of pending
623 * state-change packets */
624 struct timeval in6m_lastgsrtv; /* last G-S-R query */
625 uint16_t in6m_sctimer; /* state-change timer */
626 uint16_t in6m_scrv; /* state-change rexmit count */
627
628 /*
629 * SSM state counters which track state at T0 (the time the last
630 * state-change report's RV timer went to zero) and T1
631 * (time of pending report, i.e. now).
632 * Used for computing MLDv2 state-change reports. Several refcounts
633 * are maintained here to optimize for common use-cases.
634 */
635 struct in6m_st {
636 uint16_t iss_fmode; /* MLD filter mode */
637 uint16_t iss_asm; /* # of ASM listeners */
638 uint16_t iss_ex; /* # of exclusive members */
639 uint16_t iss_in; /* # of inclusive members */
640 uint16_t iss_rec; /* # of recorded sources */
641 } in6m_st[2]; /* state at t0, t1 */
642};
643
644/*
645 * Helper function to derive the filter mode on a source entry
646 * from its internal counters. Predicates are:
647 * A source is only excluded if all listeners exclude it.
648 * A source is only included if no listeners exclude it,
649 * and at least one listener includes it.
650 * May be used by ifmcstat(8).
651 */
652static __inline uint8_t
653im6s_get_mode(const struct in6_multi *inm, const struct ip6_msource *ims,
654 uint8_t t)
655{
656
657 t = !!t;
658 if (inm->in6m_st[t].iss_ex > 0 &&
659 inm->in6m_st[t].iss_ex == ims->im6s_st[t].ex)
660 return (MCAST_EXCLUDE);
661 else if (ims->im6s_st[t].in > 0 && ims->im6s_st[t].ex == 0)
662 return (MCAST_INCLUDE);
663 return (MCAST_UNDEFINED);
664}
665
666#ifdef _KERNEL
667
668/*
669 * Lock macros for IPv6 layer multicast address lists. IPv6 lock goes
670 * before link layer multicast locks in the lock order. In most cases,
671 * consumers of IN_*_MULTI() macros should acquire the locks before
672 * calling them; users of the in_{add,del}multi() functions should not.
673 */
674extern struct mtx in6_multi_mtx;
675#define IN6_MULTI_LOCK() mtx_lock(&in6_multi_mtx)
676#define IN6_MULTI_UNLOCK() mtx_unlock(&in6_multi_mtx)
677#define IN6_MULTI_LOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_OWNED)
678#define IN6_MULTI_UNLOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_NOTOWNED)
679
680/*
681 * Look up an in6_multi record for an IPv6 multicast address
682 * on the interface ifp.
683 * If no record found, return NULL.
684 *
685 * SMPng: The IN6_MULTI_LOCK and IF_ADDR_LOCK on ifp must be held.
686 */
687static __inline struct in6_multi *
688in6m_lookup_locked(struct ifnet *ifp, const struct in6_addr *mcaddr)
689{
690 struct ifmultiaddr *ifma;
691 struct in6_multi *inm;
692
693 IN6_MULTI_LOCK_ASSERT();
694 IF_ADDR_LOCK_ASSERT(ifp);
695
696 inm = NULL;
697 TAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) {
698 if (ifma->ifma_addr->sa_family == AF_INET6) {
699 inm = (struct in6_multi *)ifma->ifma_protospec;
700 if (IN6_ARE_ADDR_EQUAL(&inm->in6m_addr, mcaddr))
701 break;
702 inm = NULL;
703 }
704 }
705 return (inm);
706}
707
708/*
709 * Wrapper for in6m_lookup_locked().
710 *
711 * SMPng: Assumes that neithr the IN6_MULTI_LOCK() or IF_ADDR_LOCK() are held.
712 */
713static __inline struct in6_multi *
714in6m_lookup(struct ifnet *ifp, const struct in6_addr *mcaddr)
715{
716 struct in6_multi *inm;
717
718 IN6_MULTI_LOCK();
719 IF_ADDR_RLOCK(ifp);
720 inm = in6m_lookup_locked(ifp, mcaddr);
721 IF_ADDR_RUNLOCK(ifp);
722 IN6_MULTI_UNLOCK();
723
724 return (inm);
725}
726
727/* Acquire an in6_multi record. */
728static __inline void
729in6m_acquire_locked(struct in6_multi *inm)
730{
731
732 IN6_MULTI_LOCK_ASSERT();
733 ++inm->in6m_refcount;
734}
735
736struct ip6_moptions;
737struct sockopt;
738
739/* Multicast KPIs. */
740int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *,
741 const struct sockaddr *, const struct sockaddr *);
742int in6_mc_join(struct ifnet *, const struct in6_addr *,
743 struct in6_mfilter *, struct in6_multi **, int);
744int in6_mc_join_locked(struct ifnet *, const struct in6_addr *,
745 struct in6_mfilter *, struct in6_multi **, int);
746int in6_mc_leave(struct in6_multi *, struct in6_mfilter *);
747int in6_mc_leave_locked(struct in6_multi *, struct in6_mfilter *);
748void in6m_clear_recorded(struct in6_multi *);
749void in6m_commit(struct in6_multi *);
750void in6m_print(const struct in6_multi *);
751int in6m_record_source(struct in6_multi *, const struct in6_addr *);
752void in6m_release_locked(struct in6_multi *);
753void ip6_freemoptions(struct ip6_moptions *);
754int ip6_getmoptions(struct inpcb *, struct sockopt *);
755int ip6_setmoptions(struct inpcb *, struct sockopt *);
756
757/* Legacy KAME multicast KPIs. */
758struct in6_multi_mship *
759 in6_joingroup(struct ifnet *, struct in6_addr *, int *, int);
760int in6_leavegroup(struct in6_multi_mship *);
761
762/* flags to in6_update_ifa */
763#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
764
| 62 */
63
64#ifndef _NETINET6_IN6_VAR_H_
65#define _NETINET6_IN6_VAR_H_
66
67#include <sys/tree.h>
68
69#ifdef _KERNEL
70#include <sys/libkern.h>
71#endif
72
73/*
74 * Interface address, Internet version. One of these structures
75 * is allocated for each interface with an Internet address.
76 * The ifaddr structure contains the protocol-independent part
77 * of the structure and is assumed to be first.
78 */
79
80/*
81 * pltime/vltime are just for future reference (required to implements 2
82 * hour rule for hosts). they should never be modified by nd6_timeout or
83 * anywhere else.
84 * userland -> kernel: accept pltime/vltime
85 * kernel -> userland: throw up everything
86 * in kernel: modify preferred/expire only
87 */
88struct in6_addrlifetime {
89 time_t ia6t_expire; /* valid lifetime expiration time */
90 time_t ia6t_preferred; /* preferred lifetime expiration time */
91 u_int32_t ia6t_vltime; /* valid lifetime */
92 u_int32_t ia6t_pltime; /* prefix lifetime */
93};
94
95struct nd_ifinfo;
96struct scope6_id;
97struct lltable;
98struct mld_ifinfo;
99
100struct in6_ifextra {
101 struct in6_ifstat *in6_ifstat;
102 struct icmp6_ifstat *icmp6_ifstat;
103 struct nd_ifinfo *nd_ifinfo;
104 struct scope6_id *scope6_id;
105 struct lltable *lltable;
106 struct mld_ifinfo *mld_ifinfo;
107};
108
109#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable)
110
111struct in6_ifaddr {
112 struct ifaddr ia_ifa; /* protocol-independent info */
113#define ia_ifp ia_ifa.ifa_ifp
114#define ia_flags ia_ifa.ifa_flags
115 struct sockaddr_in6 ia_addr; /* interface address */
116 struct sockaddr_in6 ia_net; /* network number of interface */
117 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
118 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
119 u_int32_t ia_plen; /* prefix length */
120 TAILQ_ENTRY(in6_ifaddr) ia_link; /* list of IPv6 addresses */
121 int ia6_flags;
122
123 struct in6_addrlifetime ia6_lifetime;
124 time_t ia6_createtime; /* the creation time of this address, which is
125 * currently used for temporary addresses only.
126 */
127 time_t ia6_updatetime;
128
129 /* back pointer to the ND prefix (for autoconfigured addresses only) */
130 struct nd_prefix *ia6_ndpr;
131
132 /* multicast addresses joined from the kernel */
133 LIST_HEAD(, in6_multi_mship) ia6_memberships;
134};
135
136/* List of in6_ifaddr's. */
137TAILQ_HEAD(in6_ifaddrhead, in6_ifaddr);
138
139/* control structure to manage address selection policy */
140struct in6_addrpolicy {
141 struct sockaddr_in6 addr; /* prefix address */
142 struct sockaddr_in6 addrmask; /* prefix mask */
143 int preced; /* precedence */
144 int label; /* matching label */
145 u_quad_t use; /* statistics */
146};
147
148/*
149 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
150 */
151struct in6_ifstat {
152 u_quad_t ifs6_in_receive; /* # of total input datagram */
153 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
154 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
155 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
156 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
157 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
158 /* NOTE: increment on final dst if */
159 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
160 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
161 /* NOTE: fragment timeout is not here */
162 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
163 /* NOTE: increment on final dst if */
164 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
165 /* NOTE: increment on outgoing if */
166 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
167 /* NOTE: does not include forwrads */
168 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
169 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
170 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
171 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
172 /* NOTE: this is # after fragment */
173 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
174 /* NOTE: increment on final dst if */
175 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
176 /* NOTE: this is # after reass */
177 /* NOTE: increment on final dst if */
178 u_quad_t ifs6_reass_fail; /* # of reass failures */
179 /* NOTE: may not be packet count */
180 /* NOTE: increment on final dst if */
181 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
182 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
183};
184
185/*
186 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
187 * XXX: I'm not sure if this file is the right place for this structure...
188 */
189struct icmp6_ifstat {
190 /*
191 * Input statistics
192 */
193 /* ipv6IfIcmpInMsgs, total # of input messages */
194 u_quad_t ifs6_in_msg;
195 /* ipv6IfIcmpInErrors, # of input error messages */
196 u_quad_t ifs6_in_error;
197 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
198 u_quad_t ifs6_in_dstunreach;
199 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
200 u_quad_t ifs6_in_adminprohib;
201 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
202 u_quad_t ifs6_in_timeexceed;
203 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
204 u_quad_t ifs6_in_paramprob;
205 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
206 u_quad_t ifs6_in_pkttoobig;
207 /* ipv6IfIcmpInEchos, # of input echo requests */
208 u_quad_t ifs6_in_echo;
209 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
210 u_quad_t ifs6_in_echoreply;
211 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
212 u_quad_t ifs6_in_routersolicit;
213 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
214 u_quad_t ifs6_in_routeradvert;
215 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
216 u_quad_t ifs6_in_neighborsolicit;
217 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
218 u_quad_t ifs6_in_neighboradvert;
219 /* ipv6IfIcmpInRedirects, # of input redirects */
220 u_quad_t ifs6_in_redirect;
221 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
222 u_quad_t ifs6_in_mldquery;
223 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
224 u_quad_t ifs6_in_mldreport;
225 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
226 u_quad_t ifs6_in_mlddone;
227
228 /*
229 * Output statistics. We should solve unresolved routing problem...
230 */
231 /* ipv6IfIcmpOutMsgs, total # of output messages */
232 u_quad_t ifs6_out_msg;
233 /* ipv6IfIcmpOutErrors, # of output error messages */
234 u_quad_t ifs6_out_error;
235 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
236 u_quad_t ifs6_out_dstunreach;
237 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
238 u_quad_t ifs6_out_adminprohib;
239 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
240 u_quad_t ifs6_out_timeexceed;
241 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
242 u_quad_t ifs6_out_paramprob;
243 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
244 u_quad_t ifs6_out_pkttoobig;
245 /* ipv6IfIcmpOutEchos, # of output echo requests */
246 u_quad_t ifs6_out_echo;
247 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
248 u_quad_t ifs6_out_echoreply;
249 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
250 u_quad_t ifs6_out_routersolicit;
251 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
252 u_quad_t ifs6_out_routeradvert;
253 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
254 u_quad_t ifs6_out_neighborsolicit;
255 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
256 u_quad_t ifs6_out_neighboradvert;
257 /* ipv6IfIcmpOutRedirects, # of output redirects */
258 u_quad_t ifs6_out_redirect;
259 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
260 u_quad_t ifs6_out_mldquery;
261 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
262 u_quad_t ifs6_out_mldreport;
263 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
264 u_quad_t ifs6_out_mlddone;
265};
266
267struct in6_ifreq {
268 char ifr_name[IFNAMSIZ];
269 union {
270 struct sockaddr_in6 ifru_addr;
271 struct sockaddr_in6 ifru_dstaddr;
272 int ifru_flags;
273 int ifru_flags6;
274 int ifru_metric;
275 caddr_t ifru_data;
276 struct in6_addrlifetime ifru_lifetime;
277 struct in6_ifstat ifru_stat;
278 struct icmp6_ifstat ifru_icmp6stat;
279 u_int32_t ifru_scope_id[16];
280 } ifr_ifru;
281};
282
283struct in6_aliasreq {
284 char ifra_name[IFNAMSIZ];
285 struct sockaddr_in6 ifra_addr;
286 struct sockaddr_in6 ifra_dstaddr;
287 struct sockaddr_in6 ifra_prefixmask;
288 int ifra_flags;
289 struct in6_addrlifetime ifra_lifetime;
290 int ifra_vhid;
291};
292
293/* pre-10.x compat */
294struct oin6_aliasreq {
295 char ifra_name[IFNAMSIZ];
296 struct sockaddr_in6 ifra_addr;
297 struct sockaddr_in6 ifra_dstaddr;
298 struct sockaddr_in6 ifra_prefixmask;
299 int ifra_flags;
300 struct in6_addrlifetime ifra_lifetime;
301};
302
303/* prefix type macro */
304#define IN6_PREFIX_ND 1
305#define IN6_PREFIX_RR 2
306
307/*
308 * prefix related flags passed between kernel(NDP related part) and
309 * user land command(ifconfig) and daemon(rtadvd).
310 */
311struct in6_prflags {
312 struct prf_ra {
313 u_char onlink : 1;
314 u_char autonomous : 1;
315 u_char reserved : 6;
316 } prf_ra;
317 u_char prf_reserved1;
318 u_short prf_reserved2;
319 /* want to put this on 4byte offset */
320 struct prf_rr {
321 u_char decrvalid : 1;
322 u_char decrprefd : 1;
323 u_char reserved : 6;
324 } prf_rr;
325 u_char prf_reserved3;
326 u_short prf_reserved4;
327};
328
329struct in6_prefixreq {
330 char ipr_name[IFNAMSIZ];
331 u_char ipr_origin;
332 u_char ipr_plen;
333 u_int32_t ipr_vltime;
334 u_int32_t ipr_pltime;
335 struct in6_prflags ipr_flags;
336 struct sockaddr_in6 ipr_prefix;
337};
338
339#define PR_ORIG_RA 0
340#define PR_ORIG_RR 1
341#define PR_ORIG_STATIC 2
342#define PR_ORIG_KERNEL 3
343
344#define ipr_raf_onlink ipr_flags.prf_ra.onlink
345#define ipr_raf_auto ipr_flags.prf_ra.autonomous
346
347#define ipr_statef_onlink ipr_flags.prf_state.onlink
348
349#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
350#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
351
352struct in6_rrenumreq {
353 char irr_name[IFNAMSIZ];
354 u_char irr_origin;
355 u_char irr_m_len; /* match len for matchprefix */
356 u_char irr_m_minlen; /* minlen for matching prefix */
357 u_char irr_m_maxlen; /* maxlen for matching prefix */
358 u_char irr_u_uselen; /* uselen for adding prefix */
359 u_char irr_u_keeplen; /* keeplen from matching prefix */
360 struct irr_raflagmask {
361 u_char onlink : 1;
362 u_char autonomous : 1;
363 u_char reserved : 6;
364 } irr_raflagmask;
365 u_int32_t irr_vltime;
366 u_int32_t irr_pltime;
367 struct in6_prflags irr_flags;
368 struct sockaddr_in6 irr_matchprefix;
369 struct sockaddr_in6 irr_useprefix;
370};
371
372#define irr_raf_mask_onlink irr_raflagmask.onlink
373#define irr_raf_mask_auto irr_raflagmask.autonomous
374#define irr_raf_mask_reserved irr_raflagmask.reserved
375
376#define irr_raf_onlink irr_flags.prf_ra.onlink
377#define irr_raf_auto irr_flags.prf_ra.autonomous
378
379#define irr_statef_onlink irr_flags.prf_state.onlink
380
381#define irr_rrf irr_flags.prf_rr
382#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
383#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
384
385/*
386 * Given a pointer to an in6_ifaddr (ifaddr),
387 * return a pointer to the addr as a sockaddr_in6
388 */
389#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
390#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
391#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
392#define IA6_SIN6(ia) (&((ia)->ia_addr))
393#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
394#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
395#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
396
397#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
398
399#ifdef _KERNEL
400#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
401 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
402 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
403 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
404 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
405#endif
406
407#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
408#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
409
410#ifdef _KERNEL
411/*
412 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
413 * we do not shift numbers for binary compatibility.
414 */
415#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
416#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
417#endif
418
419#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
420#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
421
422#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
423#define OSIOCAIFADDR_IN6 _IOW('i', 26, struct oin6_aliasreq)
424#define SIOCAIFADDR_IN6 _IOW('i', 27, struct in6_aliasreq)
425
426#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
427#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
428#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
429
430#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
431
432#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
433#ifdef _KERNEL
434/* XXX: SIOCGPRLST_IN6 is exposed in KAME but in6_oprlist is not. */
435#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist)
436#endif
437#ifdef _KERNEL
438#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
439#endif
440#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
441#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq)
442#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
443#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
444#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
445#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
446
447#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
448#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
449#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
450#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
451
452#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
453#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
454
455#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
456
457#define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
458#define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
459#define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
460
461#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
462#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
463#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
464#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
465#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
466 struct in6_rrenumreq) /* change */
467#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
468 struct in6_rrenumreq) /* set global */
469
470#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
471 struct sioc_sg_req6) /* get s,g pkt cnt */
472#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
473 struct sioc_mif_req6) /* get pkt cnt per if */
474
475#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
476#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
477
478#define IN6_IFF_ANYCAST 0x01 /* anycast address */
479#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
480#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
481#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
482#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
483#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
484 * (used only at first SIOC* call)
485 */
486#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
487#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
488#define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management.
489 * XXX: this should be temporary.
490 */
491
492/* do not input/output */
493#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
494
495#ifdef _KERNEL
496#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
497#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
498#endif
499
500#ifdef _KERNEL
501VNET_DECLARE(struct in6_ifaddrhead, in6_ifaddrhead);
502#define V_in6_ifaddrhead VNET(in6_ifaddrhead)
503
504extern struct rwlock in6_ifaddr_lock;
505#define IN6_IFADDR_LOCK_ASSERT( ) rw_assert(&in6_ifaddr_lock, RA_LOCKED)
506#define IN6_IFADDR_RLOCK() rw_rlock(&in6_ifaddr_lock)
507#define IN6_IFADDR_RLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_RLOCKED)
508#define IN6_IFADDR_RUNLOCK() rw_runlock(&in6_ifaddr_lock)
509#define IN6_IFADDR_WLOCK() rw_wlock(&in6_ifaddr_lock)
510#define IN6_IFADDR_WLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_WLOCKED)
511#define IN6_IFADDR_WUNLOCK() rw_wunlock(&in6_ifaddr_lock)
512
513VNET_DECLARE(struct icmp6stat, icmp6stat);
514#define V_icmp6stat VNET(icmp6stat)
515#define in6_ifstat_inc(ifp, tag) \
516do { \
517 if (ifp) \
518 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
519} while (/*CONSTCOND*/ 0)
520
521extern struct in6_addr zeroin6_addr;
522extern u_char inet6ctlerrmap[];
523VNET_DECLARE(unsigned long, in6_maxmtu);
524#define V_in6_maxmtu VNET(in6_maxmtu)
525#endif /* _KERNEL */
526
527/*
528 * IPv6 multicast MLD-layer source entry.
529 */
530struct ip6_msource {
531 RB_ENTRY(ip6_msource) im6s_link; /* RB tree links */
532 struct in6_addr im6s_addr;
533 struct im6s_st {
534 uint16_t ex; /* # of exclusive members */
535 uint16_t in; /* # of inclusive members */
536 } im6s_st[2]; /* state at t0, t1 */
537 uint8_t im6s_stp; /* pending query */
538};
539RB_HEAD(ip6_msource_tree, ip6_msource);
540
541/*
542 * IPv6 multicast PCB-layer source entry.
543 *
544 * NOTE: overlapping use of struct ip6_msource fields at start.
545 */
546struct in6_msource {
547 RB_ENTRY(ip6_msource) im6s_link; /* Common field */
548 struct in6_addr im6s_addr; /* Common field */
549 uint8_t im6sl_st[2]; /* state before/at commit */
550};
551
552#ifdef _KERNEL
553/*
554 * IPv6 source tree comparison function.
555 *
556 * An ordered predicate is necessary; bcmp() is not documented to return
557 * an indication of order, memcmp() is, and is an ISO C99 requirement.
558 */
559static __inline int
560ip6_msource_cmp(const struct ip6_msource *a, const struct ip6_msource *b)
561{
562
563 return (memcmp(&a->im6s_addr, &b->im6s_addr, sizeof(struct in6_addr)));
564}
565RB_PROTOTYPE(ip6_msource_tree, ip6_msource, im6s_link, ip6_msource_cmp);
566#endif /* _KERNEL */
567
568/*
569 * IPv6 multicast PCB-layer group filter descriptor.
570 */
571struct in6_mfilter {
572 struct ip6_msource_tree im6f_sources; /* source list for (S,G) */
573 u_long im6f_nsrc; /* # of source entries */
574 uint8_t im6f_st[2]; /* state before/at commit */
575};
576
577/*
578 * Legacy KAME IPv6 multicast membership descriptor.
579 */
580struct in6_multi_mship {
581 struct in6_multi *i6mm_maddr;
582 LIST_ENTRY(in6_multi_mship) i6mm_chain;
583};
584
585/*
586 * IPv6 group descriptor.
587 *
588 * For every entry on an ifnet's if_multiaddrs list which represents
589 * an IP multicast group, there is one of these structures.
590 *
591 * If any source filters are present, then a node will exist in the RB-tree
592 * to permit fast lookup by source whenever an operation takes place.
593 * This permits pre-order traversal when we issue reports.
594 * Source filter trees are kept separately from the socket layer to
595 * greatly simplify locking.
596 *
597 * When MLDv2 is active, in6m_timer is the response to group query timer.
598 * The state-change timer in6m_sctimer is separate; whenever state changes
599 * for the group the state change record is generated and transmitted,
600 * and kept if retransmissions are necessary.
601 *
602 * FUTURE: in6m_link is now only used when groups are being purged
603 * on a detaching ifnet. It could be demoted to a SLIST_ENTRY, but
604 * because it is at the very start of the struct, we can't do this
605 * w/o breaking the ABI for ifmcstat.
606 */
607struct in6_multi {
608 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
609 struct in6_addr in6m_addr; /* IPv6 multicast address */
610 struct ifnet *in6m_ifp; /* back pointer to ifnet */
611 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
612 u_int in6m_refcount; /* reference count */
613 u_int in6m_state; /* state of the membership */
614 u_int in6m_timer; /* MLD6 listener report timer */
615
616 /* New fields for MLDv2 follow. */
617 struct mld_ifinfo *in6m_mli; /* MLD info */
618 SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */
619 struct ip6_msource_tree in6m_srcs; /* tree of sources */
620 u_long in6m_nsrc; /* # of tree entries */
621
622 struct ifqueue in6m_scq; /* queue of pending
623 * state-change packets */
624 struct timeval in6m_lastgsrtv; /* last G-S-R query */
625 uint16_t in6m_sctimer; /* state-change timer */
626 uint16_t in6m_scrv; /* state-change rexmit count */
627
628 /*
629 * SSM state counters which track state at T0 (the time the last
630 * state-change report's RV timer went to zero) and T1
631 * (time of pending report, i.e. now).
632 * Used for computing MLDv2 state-change reports. Several refcounts
633 * are maintained here to optimize for common use-cases.
634 */
635 struct in6m_st {
636 uint16_t iss_fmode; /* MLD filter mode */
637 uint16_t iss_asm; /* # of ASM listeners */
638 uint16_t iss_ex; /* # of exclusive members */
639 uint16_t iss_in; /* # of inclusive members */
640 uint16_t iss_rec; /* # of recorded sources */
641 } in6m_st[2]; /* state at t0, t1 */
642};
643
644/*
645 * Helper function to derive the filter mode on a source entry
646 * from its internal counters. Predicates are:
647 * A source is only excluded if all listeners exclude it.
648 * A source is only included if no listeners exclude it,
649 * and at least one listener includes it.
650 * May be used by ifmcstat(8).
651 */
652static __inline uint8_t
653im6s_get_mode(const struct in6_multi *inm, const struct ip6_msource *ims,
654 uint8_t t)
655{
656
657 t = !!t;
658 if (inm->in6m_st[t].iss_ex > 0 &&
659 inm->in6m_st[t].iss_ex == ims->im6s_st[t].ex)
660 return (MCAST_EXCLUDE);
661 else if (ims->im6s_st[t].in > 0 && ims->im6s_st[t].ex == 0)
662 return (MCAST_INCLUDE);
663 return (MCAST_UNDEFINED);
664}
665
666#ifdef _KERNEL
667
668/*
669 * Lock macros for IPv6 layer multicast address lists. IPv6 lock goes
670 * before link layer multicast locks in the lock order. In most cases,
671 * consumers of IN_*_MULTI() macros should acquire the locks before
672 * calling them; users of the in_{add,del}multi() functions should not.
673 */
674extern struct mtx in6_multi_mtx;
675#define IN6_MULTI_LOCK() mtx_lock(&in6_multi_mtx)
676#define IN6_MULTI_UNLOCK() mtx_unlock(&in6_multi_mtx)
677#define IN6_MULTI_LOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_OWNED)
678#define IN6_MULTI_UNLOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_NOTOWNED)
679
680/*
681 * Look up an in6_multi record for an IPv6 multicast address
682 * on the interface ifp.
683 * If no record found, return NULL.
684 *
685 * SMPng: The IN6_MULTI_LOCK and IF_ADDR_LOCK on ifp must be held.
686 */
687static __inline struct in6_multi *
688in6m_lookup_locked(struct ifnet *ifp, const struct in6_addr *mcaddr)
689{
690 struct ifmultiaddr *ifma;
691 struct in6_multi *inm;
692
693 IN6_MULTI_LOCK_ASSERT();
694 IF_ADDR_LOCK_ASSERT(ifp);
695
696 inm = NULL;
697 TAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) {
698 if (ifma->ifma_addr->sa_family == AF_INET6) {
699 inm = (struct in6_multi *)ifma->ifma_protospec;
700 if (IN6_ARE_ADDR_EQUAL(&inm->in6m_addr, mcaddr))
701 break;
702 inm = NULL;
703 }
704 }
705 return (inm);
706}
707
708/*
709 * Wrapper for in6m_lookup_locked().
710 *
711 * SMPng: Assumes that neithr the IN6_MULTI_LOCK() or IF_ADDR_LOCK() are held.
712 */
713static __inline struct in6_multi *
714in6m_lookup(struct ifnet *ifp, const struct in6_addr *mcaddr)
715{
716 struct in6_multi *inm;
717
718 IN6_MULTI_LOCK();
719 IF_ADDR_RLOCK(ifp);
720 inm = in6m_lookup_locked(ifp, mcaddr);
721 IF_ADDR_RUNLOCK(ifp);
722 IN6_MULTI_UNLOCK();
723
724 return (inm);
725}
726
727/* Acquire an in6_multi record. */
728static __inline void
729in6m_acquire_locked(struct in6_multi *inm)
730{
731
732 IN6_MULTI_LOCK_ASSERT();
733 ++inm->in6m_refcount;
734}
735
736struct ip6_moptions;
737struct sockopt;
738
739/* Multicast KPIs. */
740int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *,
741 const struct sockaddr *, const struct sockaddr *);
742int in6_mc_join(struct ifnet *, const struct in6_addr *,
743 struct in6_mfilter *, struct in6_multi **, int);
744int in6_mc_join_locked(struct ifnet *, const struct in6_addr *,
745 struct in6_mfilter *, struct in6_multi **, int);
746int in6_mc_leave(struct in6_multi *, struct in6_mfilter *);
747int in6_mc_leave_locked(struct in6_multi *, struct in6_mfilter *);
748void in6m_clear_recorded(struct in6_multi *);
749void in6m_commit(struct in6_multi *);
750void in6m_print(const struct in6_multi *);
751int in6m_record_source(struct in6_multi *, const struct in6_addr *);
752void in6m_release_locked(struct in6_multi *);
753void ip6_freemoptions(struct ip6_moptions *);
754int ip6_getmoptions(struct inpcb *, struct sockopt *);
755int ip6_setmoptions(struct inpcb *, struct sockopt *);
756
757/* Legacy KAME multicast KPIs. */
758struct in6_multi_mship *
759 in6_joingroup(struct ifnet *, struct in6_addr *, int *, int);
760int in6_leavegroup(struct in6_multi_mship *);
761
762/* flags to in6_update_ifa */
763#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
764
|