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#include <sys/counter.h>
69
70#ifdef _KERNEL
71#include <sys/fnv_hash.h>
72#include <sys/libkern.h>
73#endif
74
75/*
76 * Interface address, Internet version. One of these structures
77 * is allocated for each interface with an Internet address.
78 * The ifaddr structure contains the protocol-independent part
79 * of the structure and is assumed to be first.
80 */
81
82/*
83 * pltime/vltime are just for future reference (required to implements 2
84 * hour rule for hosts). they should never be modified by nd6_timeout or
85 * anywhere else.
86 * userland -> kernel: accept pltime/vltime
87 * kernel -> userland: throw up everything
88 * in kernel: modify preferred/expire only
89 */
90struct in6_addrlifetime {
91 time_t ia6t_expire; /* valid lifetime expiration time */
92 time_t ia6t_preferred; /* preferred lifetime expiration time */
93 u_int32_t ia6t_vltime; /* valid lifetime */
94 u_int32_t ia6t_pltime; /* prefix lifetime */
95};
96
97struct nd_ifinfo;
98struct scope6_id;
99struct lltable;
100struct mld_ifinfo;
101
102struct in6_ifextra {
103 counter_u64_t *in6_ifstat;
104 counter_u64_t *icmp6_ifstat;
105 struct nd_ifinfo *nd_ifinfo;
106 struct scope6_id *scope6_id;
107 struct lltable *lltable;
108 struct mld_ifinfo *mld_ifinfo;
109};
110
111#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable)
112
113#if defined(_KERNEL) || defined(_WANT_IFADDR)
114struct in6_ifaddr {
115 struct ifaddr ia_ifa; /* protocol-independent info */
116#define ia_ifp ia_ifa.ifa_ifp
117#define ia_flags ia_ifa.ifa_flags
118 struct sockaddr_in6 ia_addr; /* interface address */
119 struct sockaddr_in6 ia_net; /* network number of interface */
120 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
121 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
122 u_int32_t ia_plen; /* prefix length */
123 TAILQ_ENTRY(in6_ifaddr) ia_link; /* list of IPv6 addresses */
124 int ia6_flags;
125
126 struct in6_addrlifetime ia6_lifetime;
127 time_t ia6_createtime; /* the creation time of this address, which is
128 * currently used for temporary addresses only.
129 */
130 time_t ia6_updatetime;
131
132 /* back pointer to the ND prefix (for autoconfigured addresses only) */
133 struct nd_prefix *ia6_ndpr;
134
135 /* multicast addresses joined from the kernel */
136 LIST_HEAD(, in6_multi_mship) ia6_memberships;
137 /* entry in bucket of inet6 addresses */
138 LIST_ENTRY(in6_ifaddr) ia6_hash;
139};
140
141/* List of in6_ifaddr's. */
142TAILQ_HEAD(in6_ifaddrhead, in6_ifaddr);
143LIST_HEAD(in6_ifaddrlisthead, in6_ifaddr);
144#endif
145
146/* control structure to manage address selection policy */
147struct in6_addrpolicy {
148 struct sockaddr_in6 addr; /* prefix address */
149 struct sockaddr_in6 addrmask; /* prefix mask */
150 int preced; /* precedence */
151 int label; /* matching label */
152 u_quad_t use; /* statistics */
153};
154
155/*
156 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
157 */
158struct in6_ifstat {
159 uint64_t ifs6_in_receive; /* # of total input datagram */
160 uint64_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
161 uint64_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
162 uint64_t ifs6_in_noroute; /* # of datagrams with no route */
163 uint64_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
164 uint64_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
165 /* NOTE: increment on final dst if */
166 uint64_t ifs6_in_truncated; /* # of truncated datagrams */
167 uint64_t ifs6_in_discard; /* # of discarded datagrams */
168 /* NOTE: fragment timeout is not here */
169 uint64_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
170 /* NOTE: increment on final dst if */
171 uint64_t ifs6_out_forward; /* # of datagrams forwarded */
172 /* NOTE: increment on outgoing if */
173 uint64_t ifs6_out_request; /* # of outgoing datagrams from ULP */
174 /* NOTE: does not include forwrads */
175 uint64_t ifs6_out_discard; /* # of discarded datagrams */
176 uint64_t ifs6_out_fragok; /* # of datagrams fragmented */
177 uint64_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
178 uint64_t ifs6_out_fragcreat; /* # of fragment datagrams */
179 /* NOTE: this is # after fragment */
180 uint64_t ifs6_reass_reqd; /* # of incoming fragmented packets */
181 /* NOTE: increment on final dst if */
182 uint64_t ifs6_reass_ok; /* # of reassembled packets */
183 /* NOTE: this is # after reass */
184 /* NOTE: increment on final dst if */
185 uint64_t ifs6_reass_fail; /* # of reass failures */
186 /* NOTE: may not be packet count */
187 /* NOTE: increment on final dst if */
188 uint64_t ifs6_in_mcast; /* # of inbound multicast datagrams */
189 uint64_t ifs6_out_mcast; /* # of outbound multicast datagrams */
190};
191
192/*
193 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
194 * XXX: I'm not sure if this file is the right place for this structure...
195 */
196struct icmp6_ifstat {
197 /*
198 * Input statistics
199 */
200 /* ipv6IfIcmpInMsgs, total # of input messages */
201 uint64_t ifs6_in_msg;
202 /* ipv6IfIcmpInErrors, # of input error messages */
203 uint64_t ifs6_in_error;
204 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
205 uint64_t ifs6_in_dstunreach;
206 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
207 uint64_t ifs6_in_adminprohib;
208 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
209 uint64_t ifs6_in_timeexceed;
210 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
211 uint64_t ifs6_in_paramprob;
212 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
213 uint64_t ifs6_in_pkttoobig;
214 /* ipv6IfIcmpInEchos, # of input echo requests */
215 uint64_t ifs6_in_echo;
216 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
217 uint64_t ifs6_in_echoreply;
218 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
219 uint64_t ifs6_in_routersolicit;
220 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
221 uint64_t ifs6_in_routeradvert;
222 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
223 uint64_t ifs6_in_neighborsolicit;
224 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
225 uint64_t ifs6_in_neighboradvert;
226 /* ipv6IfIcmpInRedirects, # of input redirects */
227 uint64_t ifs6_in_redirect;
228 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
229 uint64_t ifs6_in_mldquery;
230 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
231 uint64_t ifs6_in_mldreport;
232 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
233 uint64_t ifs6_in_mlddone;
234
235 /*
236 * Output statistics. We should solve unresolved routing problem...
237 */
238 /* ipv6IfIcmpOutMsgs, total # of output messages */
239 uint64_t ifs6_out_msg;
240 /* ipv6IfIcmpOutErrors, # of output error messages */
241 uint64_t ifs6_out_error;
242 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
243 uint64_t ifs6_out_dstunreach;
244 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
245 uint64_t ifs6_out_adminprohib;
246 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
247 uint64_t ifs6_out_timeexceed;
248 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
249 uint64_t ifs6_out_paramprob;
250 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
251 uint64_t ifs6_out_pkttoobig;
252 /* ipv6IfIcmpOutEchos, # of output echo requests */
253 uint64_t ifs6_out_echo;
254 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
255 uint64_t ifs6_out_echoreply;
256 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
257 uint64_t ifs6_out_routersolicit;
258 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
259 uint64_t ifs6_out_routeradvert;
260 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
261 uint64_t ifs6_out_neighborsolicit;
262 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
263 uint64_t ifs6_out_neighboradvert;
264 /* ipv6IfIcmpOutRedirects, # of output redirects */
265 uint64_t ifs6_out_redirect;
266 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
267 uint64_t ifs6_out_mldquery;
268 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
269 uint64_t ifs6_out_mldreport;
270 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
271 uint64_t ifs6_out_mlddone;
272};
273
274struct in6_ifreq {
275 char ifr_name[IFNAMSIZ];
276 union {
277 struct sockaddr_in6 ifru_addr;
278 struct sockaddr_in6 ifru_dstaddr;
279 int ifru_flags;
280 int ifru_flags6;
281 int ifru_metric;
282 caddr_t ifru_data;
283 struct in6_addrlifetime ifru_lifetime;
284 struct in6_ifstat ifru_stat;
285 struct icmp6_ifstat ifru_icmp6stat;
286 u_int32_t ifru_scope_id[16];
287 } ifr_ifru;
288};
289
290struct in6_aliasreq {
291 char ifra_name[IFNAMSIZ];
292 struct sockaddr_in6 ifra_addr;
293 struct sockaddr_in6 ifra_dstaddr;
294 struct sockaddr_in6 ifra_prefixmask;
295 int ifra_flags;
296 struct in6_addrlifetime ifra_lifetime;
297 int ifra_vhid;
298};
299
300/* pre-10.x compat */
301struct oin6_aliasreq {
302 char ifra_name[IFNAMSIZ];
303 struct sockaddr_in6 ifra_addr;
304 struct sockaddr_in6 ifra_dstaddr;
305 struct sockaddr_in6 ifra_prefixmask;
306 int ifra_flags;
307 struct in6_addrlifetime ifra_lifetime;
308};
309
310/* prefix type macro */
311#define IN6_PREFIX_ND 1
312#define IN6_PREFIX_RR 2
313
314/*
315 * prefix related flags passed between kernel(NDP related part) and
316 * user land command(ifconfig) and daemon(rtadvd).
317 */
318struct in6_prflags {
319 struct prf_ra {
320 u_char onlink : 1;
321 u_char autonomous : 1;
322 u_char reserved : 6;
323 } prf_ra;
324 u_char prf_reserved1;
325 u_short prf_reserved2;
326 /* want to put this on 4byte offset */
327 struct prf_rr {
328 u_char decrvalid : 1;
329 u_char decrprefd : 1;
330 u_char reserved : 6;
331 } prf_rr;
332 u_char prf_reserved3;
333 u_short prf_reserved4;
334};
335
336struct in6_prefixreq {
337 char ipr_name[IFNAMSIZ];
338 u_char ipr_origin;
339 u_char ipr_plen;
340 u_int32_t ipr_vltime;
341 u_int32_t ipr_pltime;
342 struct in6_prflags ipr_flags;
343 struct sockaddr_in6 ipr_prefix;
344};
345
346#define PR_ORIG_RA 0
347#define PR_ORIG_RR 1
348#define PR_ORIG_STATIC 2
349#define PR_ORIG_KERNEL 3
350
351#define ipr_raf_onlink ipr_flags.prf_ra.onlink
352#define ipr_raf_auto ipr_flags.prf_ra.autonomous
353
354#define ipr_statef_onlink ipr_flags.prf_state.onlink
355
356#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
357#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
358
359struct in6_rrenumreq {
360 char irr_name[IFNAMSIZ];
361 u_char irr_origin;
362 u_char irr_m_len; /* match len for matchprefix */
363 u_char irr_m_minlen; /* minlen for matching prefix */
364 u_char irr_m_maxlen; /* maxlen for matching prefix */
365 u_char irr_u_uselen; /* uselen for adding prefix */
366 u_char irr_u_keeplen; /* keeplen from matching prefix */
367 struct irr_raflagmask {
368 u_char onlink : 1;
369 u_char autonomous : 1;
370 u_char reserved : 6;
371 } irr_raflagmask;
372 u_int32_t irr_vltime;
373 u_int32_t irr_pltime;
374 struct in6_prflags irr_flags;
375 struct sockaddr_in6 irr_matchprefix;
376 struct sockaddr_in6 irr_useprefix;
377};
378
379#define irr_raf_mask_onlink irr_raflagmask.onlink
380#define irr_raf_mask_auto irr_raflagmask.autonomous
381#define irr_raf_mask_reserved irr_raflagmask.reserved
382
383#define irr_raf_onlink irr_flags.prf_ra.onlink
384#define irr_raf_auto irr_flags.prf_ra.autonomous
385
386#define irr_statef_onlink irr_flags.prf_state.onlink
387
388#define irr_rrf irr_flags.prf_rr
389#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
390#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
391
392/*
393 * Given a pointer to an in6_ifaddr (ifaddr),
394 * return a pointer to the addr as a sockaddr_in6
395 */
396#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
397#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
398#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
399#define IA6_SIN6(ia) (&((ia)->ia_addr))
400#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
401#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
402#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
403
404#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
405
406#ifdef _KERNEL
407#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
408 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
409 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
410 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
411 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
412#define IN6_MASK_ADDR(a, m) do { \
413 (a)->s6_addr32[0] &= (m)->s6_addr32[0]; \
414 (a)->s6_addr32[1] &= (m)->s6_addr32[1]; \
415 (a)->s6_addr32[2] &= (m)->s6_addr32[2]; \
416 (a)->s6_addr32[3] &= (m)->s6_addr32[3]; \
417} while (0)
418#endif
419
420#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
421#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
422
423#ifdef _KERNEL
424/*
425 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
426 * we do not shift numbers for binary compatibility.
427 */
428#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
429#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
430#endif
431
432#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
433#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
434
435#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
436#define OSIOCAIFADDR_IN6 _IOW('i', 26, struct oin6_aliasreq)
437#define SIOCAIFADDR_IN6 _IOW('i', 27, struct in6_aliasreq)
438
439#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
440#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
441#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
442
443#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
444
445#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
446#ifdef _KERNEL
447/* XXX: SIOCGPRLST_IN6 is exposed in KAME but in6_oprlist is not. */
448#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist)
449#endif
450#ifdef _KERNEL
451#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
452#endif
453#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
454#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq)
455#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
456#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
457#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
458#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
459
460#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
461#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
462#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
463#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
464
465#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
466#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
467
468#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
469
470#define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
471#define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
472#define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
473
474#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
475#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
476#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
477#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
478#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
479 struct in6_rrenumreq) /* change */
480#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
481 struct in6_rrenumreq) /* set global */
482
483#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
484 struct sioc_sg_req6) /* get s,g pkt cnt */
485#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
486 struct sioc_mif_req6) /* get pkt cnt per if */
487
488#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
489#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
490
491#define IN6_IFF_ANYCAST 0x01 /* anycast address */
492#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
493#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
494#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
495#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
496#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
497 * (used only at first SIOC* call)
498 */
499#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
500#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
501#define IN6_IFF_PREFER_SOURCE 0x0100 /* preferred address for SAS */
502#define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management.
503 * XXX: this should be temporary.
504 */
505
506/* do not input/output */
507#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
508
509#ifdef _KERNEL
510#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
511#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
512#endif
513
514#ifdef _KERNEL
515VNET_DECLARE(struct in6_ifaddrhead, in6_ifaddrhead);
516VNET_DECLARE(struct in6_ifaddrlisthead *, in6_ifaddrhashtbl);
517VNET_DECLARE(u_long, in6_ifaddrhmask);
518#define V_in6_ifaddrhead VNET(in6_ifaddrhead)
519#define V_in6_ifaddrhashtbl VNET(in6_ifaddrhashtbl)
520#define V_in6_ifaddrhmask VNET(in6_ifaddrhmask)
521
522#define IN6ADDR_NHASH_LOG2 8
523#define IN6ADDR_NHASH (1 << IN6ADDR_NHASH_LOG2)
524#define IN6ADDR_HASHVAL(x) (in6_addrhash(x))
525#define IN6ADDR_HASH(x) \
526 (&V_in6_ifaddrhashtbl[IN6ADDR_HASHVAL(x) & V_in6_ifaddrhmask])
527
528static __inline uint32_t
529in6_addrhash(const struct in6_addr *in6)
530{
531 uint32_t x;
532
533 x = in6->s6_addr32[0] ^ in6->s6_addr32[1] ^ in6->s6_addr32[2] ^
534 in6->s6_addr32[3];
535 return (fnv_32_buf(&x, sizeof(x), FNV1_32_INIT));
536}
537
538extern struct rwlock in6_ifaddr_lock;
539#define IN6_IFADDR_LOCK_ASSERT( ) rw_assert(&in6_ifaddr_lock, RA_LOCKED)
540#define IN6_IFADDR_RLOCK() rw_rlock(&in6_ifaddr_lock)
541#define IN6_IFADDR_RLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_RLOCKED)
542#define IN6_IFADDR_RUNLOCK() rw_runlock(&in6_ifaddr_lock)
543#define IN6_IFADDR_WLOCK() rw_wlock(&in6_ifaddr_lock)
544#define IN6_IFADDR_WLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_WLOCKED)
545#define IN6_IFADDR_WUNLOCK() rw_wunlock(&in6_ifaddr_lock)
546
547#define in6_ifstat_inc(ifp, tag) \
548do { \
549 if (ifp) \
550 counter_u64_add(((struct in6_ifextra *) \
551 ((ifp)->if_afdata[AF_INET6]))->in6_ifstat[ \
552 offsetof(struct in6_ifstat, tag) / sizeof(uint64_t)], 1);\
553} while (/*CONSTCOND*/ 0)
554
555extern u_char inet6ctlerrmap[];
556VNET_DECLARE(unsigned long, in6_maxmtu);
557#define V_in6_maxmtu VNET(in6_maxmtu)
558#endif /* _KERNEL */
559
560/*
561 * IPv6 multicast MLD-layer source entry.
562 */
563struct ip6_msource {
564 RB_ENTRY(ip6_msource) im6s_link; /* RB tree links */
565 struct in6_addr im6s_addr;
566 struct im6s_st {
567 uint16_t ex; /* # of exclusive members */
568 uint16_t in; /* # of inclusive members */
569 } im6s_st[2]; /* state at t0, t1 */
570 uint8_t im6s_stp; /* pending query */
571};
572RB_HEAD(ip6_msource_tree, ip6_msource);
573
574/*
575 * IPv6 multicast PCB-layer source entry.
576 *
577 * NOTE: overlapping use of struct ip6_msource fields at start.
578 */
579struct in6_msource {
580 RB_ENTRY(ip6_msource) im6s_link; /* Common field */
581 struct in6_addr im6s_addr; /* Common field */
582 uint8_t im6sl_st[2]; /* state before/at commit */
583};
584
585#ifdef _KERNEL
586/*
587 * IPv6 source tree comparison function.
588 *
589 * An ordered predicate is necessary; bcmp() is not documented to return
590 * an indication of order, memcmp() is, and is an ISO C99 requirement.
591 */
592static __inline int
593ip6_msource_cmp(const struct ip6_msource *a, const struct ip6_msource *b)
594{
595
596 return (memcmp(&a->im6s_addr, &b->im6s_addr, sizeof(struct in6_addr)));
597}
598RB_PROTOTYPE(ip6_msource_tree, ip6_msource, im6s_link, ip6_msource_cmp);
599#endif /* _KERNEL */
600
601/*
602 * IPv6 multicast PCB-layer group filter descriptor.
603 */
604struct in6_mfilter {
605 struct ip6_msource_tree im6f_sources; /* source list for (S,G) */
606 u_long im6f_nsrc; /* # of source entries */
607 uint8_t im6f_st[2]; /* state before/at commit */
608};
609
610/*
611 * Legacy KAME IPv6 multicast membership descriptor.
612 */
613struct in6_multi_mship {
614 struct in6_multi *i6mm_maddr;
615 LIST_ENTRY(in6_multi_mship) i6mm_chain;
616};
617
618/*
619 * IPv6 group descriptor.
620 *
621 * For every entry on an ifnet's if_multiaddrs list which represents
622 * an IP multicast group, there is one of these structures.
623 *
624 * If any source filters are present, then a node will exist in the RB-tree
625 * to permit fast lookup by source whenever an operation takes place.
626 * This permits pre-order traversal when we issue reports.
627 * Source filter trees are kept separately from the socket layer to
628 * greatly simplify locking.
629 *
630 * When MLDv2 is active, in6m_timer is the response to group query timer.
631 * The state-change timer in6m_sctimer is separate; whenever state changes
632 * for the group the state change record is generated and transmitted,
633 * and kept if retransmissions are necessary.
634 *
635 * FUTURE: in6m_link is now only used when groups are being purged
636 * on a detaching ifnet. It could be demoted to a SLIST_ENTRY, but
637 * because it is at the very start of the struct, we can't do this
638 * w/o breaking the ABI for ifmcstat.
639 */
640struct in6_multi {
641 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
642 struct in6_addr in6m_addr; /* IPv6 multicast address */
643 struct ifnet *in6m_ifp; /* back pointer to ifnet */
644 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
645 u_int in6m_refcount; /* reference count */
646 u_int in6m_state; /* state of the membership */
647 u_int in6m_timer; /* MLD6 listener report timer */
648
649 /* New fields for MLDv2 follow. */
650 struct mld_ifinfo *in6m_mli; /* MLD info */
651 SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */
652 struct ip6_msource_tree in6m_srcs; /* tree of sources */
653 u_long in6m_nsrc; /* # of tree entries */
654
655 struct ifqueue in6m_scq; /* queue of pending
656 * state-change packets */
657 struct timeval in6m_lastgsrtv; /* last G-S-R query */
658 uint16_t in6m_sctimer; /* state-change timer */
659 uint16_t in6m_scrv; /* state-change rexmit count */
660
661 /*
662 * SSM state counters which track state at T0 (the time the last
663 * state-change report's RV timer went to zero) and T1
664 * (time of pending report, i.e. now).
665 * Used for computing MLDv2 state-change reports. Several refcounts
666 * are maintained here to optimize for common use-cases.
667 */
668 struct in6m_st {
669 uint16_t iss_fmode; /* MLD filter mode */
670 uint16_t iss_asm; /* # of ASM listeners */
671 uint16_t iss_ex; /* # of exclusive members */
672 uint16_t iss_in; /* # of inclusive members */
673 uint16_t iss_rec; /* # of recorded sources */
674 } in6m_st[2]; /* state at t0, t1 */
675};
676
677/*
678 * Helper function to derive the filter mode on a source entry
679 * from its internal counters. Predicates are:
680 * A source is only excluded if all listeners exclude it.
681 * A source is only included if no listeners exclude it,
682 * and at least one listener includes it.
683 * May be used by ifmcstat(8).
684 */
685static __inline uint8_t
686im6s_get_mode(const struct in6_multi *inm, const struct ip6_msource *ims,
687 uint8_t t)
688{
689
690 t = !!t;
691 if (inm->in6m_st[t].iss_ex > 0 &&
692 inm->in6m_st[t].iss_ex == ims->im6s_st[t].ex)
693 return (MCAST_EXCLUDE);
694 else if (ims->im6s_st[t].in > 0 && ims->im6s_st[t].ex == 0)
695 return (MCAST_INCLUDE);
696 return (MCAST_UNDEFINED);
697}
698
699#ifdef _KERNEL
700
701/*
702 * Lock macros for IPv6 layer multicast address lists. IPv6 lock goes
703 * before link layer multicast locks in the lock order. In most cases,
704 * consumers of IN_*_MULTI() macros should acquire the locks before
705 * calling them; users of the in_{add,del}multi() functions should not.
706 */
707extern struct mtx in6_multi_mtx;
708#define IN6_MULTI_LOCK() mtx_lock(&in6_multi_mtx)
709#define IN6_MULTI_UNLOCK() mtx_unlock(&in6_multi_mtx)
710#define IN6_MULTI_LOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_OWNED)
711#define IN6_MULTI_UNLOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_NOTOWNED)
712
713/*
714 * Look up an in6_multi record for an IPv6 multicast address
715 * on the interface ifp.
716 * If no record found, return NULL.
717 *
718 * SMPng: The IN6_MULTI_LOCK and IF_ADDR_LOCK on ifp must be held.
719 */
720static __inline struct in6_multi *
721in6m_lookup_locked(struct ifnet *ifp, const struct in6_addr *mcaddr)
722{
723 struct ifmultiaddr *ifma;
724 struct in6_multi *inm;
725
726 IN6_MULTI_LOCK_ASSERT();
727 IF_ADDR_LOCK_ASSERT(ifp);
728
729 inm = NULL;
730 TAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) {
731 if (ifma->ifma_addr->sa_family == AF_INET6) {
732 inm = (struct in6_multi *)ifma->ifma_protospec;
733 if (IN6_ARE_ADDR_EQUAL(&inm->in6m_addr, mcaddr))
734 break;
735 inm = NULL;
736 }
737 }
738 return (inm);
739}
740
741/*
742 * Wrapper for in6m_lookup_locked().
743 *
744 * SMPng: Assumes that neithr the IN6_MULTI_LOCK() or IF_ADDR_LOCK() are held.
745 */
746static __inline struct in6_multi *
747in6m_lookup(struct ifnet *ifp, const struct in6_addr *mcaddr)
748{
749 struct in6_multi *inm;
750
751 IN6_MULTI_LOCK();
752 IF_ADDR_RLOCK(ifp);
753 inm = in6m_lookup_locked(ifp, mcaddr);
754 IF_ADDR_RUNLOCK(ifp);
755 IN6_MULTI_UNLOCK();
756
757 return (inm);
758}
759
760/* Acquire an in6_multi record. */
761static __inline void
762in6m_acquire_locked(struct in6_multi *inm)
763{
764
765 IN6_MULTI_LOCK_ASSERT();
766 ++inm->in6m_refcount;
767}
768
769struct ip6_moptions;
770struct sockopt;
771
772/* Multicast KPIs. */
773int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *,
774 const struct sockaddr *, const struct sockaddr *);
775int in6_mc_join(struct ifnet *, const struct in6_addr *,
776 struct in6_mfilter *, struct in6_multi **, int);
777int in6_mc_join_locked(struct ifnet *, const struct in6_addr *,
778 struct in6_mfilter *, struct in6_multi **, int);
779int in6_mc_leave(struct in6_multi *, struct in6_mfilter *);
780int in6_mc_leave_locked(struct in6_multi *, struct in6_mfilter *);
781void in6m_clear_recorded(struct in6_multi *);
782void in6m_commit(struct in6_multi *);
783void in6m_print(const struct in6_multi *);
784int in6m_record_source(struct in6_multi *, const struct in6_addr *);
785void in6m_release_locked(struct in6_multi *);
786void ip6_freemoptions(struct ip6_moptions *);
787int ip6_getmoptions(struct inpcb *, struct sockopt *);
788int ip6_setmoptions(struct inpcb *, struct sockopt *);
789
790/* Legacy KAME multicast KPIs. */
791struct in6_multi_mship *
792 in6_joingroup(struct ifnet *, struct in6_addr *, int *, int);
793int in6_leavegroup(struct in6_multi_mship *);
794
795/* flags to in6_update_ifa */
796#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
797
798int in6_mask2len(struct in6_addr *, u_char *);
799int in6_control(struct socket *, u_long, caddr_t, struct ifnet *,
800 struct thread *);
801int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
802 struct in6_ifaddr *, int);
803void in6_prepare_ifra(struct in6_aliasreq *, const struct in6_addr *,
804 const struct in6_addr *);
805void in6_purgeaddr(struct ifaddr *);
806int in6if_do_dad(struct ifnet *);
807void in6_savemkludge(struct in6_ifaddr *);
808void *in6_domifattach(struct ifnet *);
809void in6_domifdetach(struct ifnet *, void *);
| 62 */
63
64#ifndef _NETINET6_IN6_VAR_H_
65#define _NETINET6_IN6_VAR_H_
66
67#include <sys/tree.h>
68#include <sys/counter.h>
69
70#ifdef _KERNEL
71#include <sys/fnv_hash.h>
72#include <sys/libkern.h>
73#endif
74
75/*
76 * Interface address, Internet version. One of these structures
77 * is allocated for each interface with an Internet address.
78 * The ifaddr structure contains the protocol-independent part
79 * of the structure and is assumed to be first.
80 */
81
82/*
83 * pltime/vltime are just for future reference (required to implements 2
84 * hour rule for hosts). they should never be modified by nd6_timeout or
85 * anywhere else.
86 * userland -> kernel: accept pltime/vltime
87 * kernel -> userland: throw up everything
88 * in kernel: modify preferred/expire only
89 */
90struct in6_addrlifetime {
91 time_t ia6t_expire; /* valid lifetime expiration time */
92 time_t ia6t_preferred; /* preferred lifetime expiration time */
93 u_int32_t ia6t_vltime; /* valid lifetime */
94 u_int32_t ia6t_pltime; /* prefix lifetime */
95};
96
97struct nd_ifinfo;
98struct scope6_id;
99struct lltable;
100struct mld_ifinfo;
101
102struct in6_ifextra {
103 counter_u64_t *in6_ifstat;
104 counter_u64_t *icmp6_ifstat;
105 struct nd_ifinfo *nd_ifinfo;
106 struct scope6_id *scope6_id;
107 struct lltable *lltable;
108 struct mld_ifinfo *mld_ifinfo;
109};
110
111#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable)
112
113#if defined(_KERNEL) || defined(_WANT_IFADDR)
114struct in6_ifaddr {
115 struct ifaddr ia_ifa; /* protocol-independent info */
116#define ia_ifp ia_ifa.ifa_ifp
117#define ia_flags ia_ifa.ifa_flags
118 struct sockaddr_in6 ia_addr; /* interface address */
119 struct sockaddr_in6 ia_net; /* network number of interface */
120 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
121 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
122 u_int32_t ia_plen; /* prefix length */
123 TAILQ_ENTRY(in6_ifaddr) ia_link; /* list of IPv6 addresses */
124 int ia6_flags;
125
126 struct in6_addrlifetime ia6_lifetime;
127 time_t ia6_createtime; /* the creation time of this address, which is
128 * currently used for temporary addresses only.
129 */
130 time_t ia6_updatetime;
131
132 /* back pointer to the ND prefix (for autoconfigured addresses only) */
133 struct nd_prefix *ia6_ndpr;
134
135 /* multicast addresses joined from the kernel */
136 LIST_HEAD(, in6_multi_mship) ia6_memberships;
137 /* entry in bucket of inet6 addresses */
138 LIST_ENTRY(in6_ifaddr) ia6_hash;
139};
140
141/* List of in6_ifaddr's. */
142TAILQ_HEAD(in6_ifaddrhead, in6_ifaddr);
143LIST_HEAD(in6_ifaddrlisthead, in6_ifaddr);
144#endif
145
146/* control structure to manage address selection policy */
147struct in6_addrpolicy {
148 struct sockaddr_in6 addr; /* prefix address */
149 struct sockaddr_in6 addrmask; /* prefix mask */
150 int preced; /* precedence */
151 int label; /* matching label */
152 u_quad_t use; /* statistics */
153};
154
155/*
156 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
157 */
158struct in6_ifstat {
159 uint64_t ifs6_in_receive; /* # of total input datagram */
160 uint64_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
161 uint64_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
162 uint64_t ifs6_in_noroute; /* # of datagrams with no route */
163 uint64_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
164 uint64_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
165 /* NOTE: increment on final dst if */
166 uint64_t ifs6_in_truncated; /* # of truncated datagrams */
167 uint64_t ifs6_in_discard; /* # of discarded datagrams */
168 /* NOTE: fragment timeout is not here */
169 uint64_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
170 /* NOTE: increment on final dst if */
171 uint64_t ifs6_out_forward; /* # of datagrams forwarded */
172 /* NOTE: increment on outgoing if */
173 uint64_t ifs6_out_request; /* # of outgoing datagrams from ULP */
174 /* NOTE: does not include forwrads */
175 uint64_t ifs6_out_discard; /* # of discarded datagrams */
176 uint64_t ifs6_out_fragok; /* # of datagrams fragmented */
177 uint64_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
178 uint64_t ifs6_out_fragcreat; /* # of fragment datagrams */
179 /* NOTE: this is # after fragment */
180 uint64_t ifs6_reass_reqd; /* # of incoming fragmented packets */
181 /* NOTE: increment on final dst if */
182 uint64_t ifs6_reass_ok; /* # of reassembled packets */
183 /* NOTE: this is # after reass */
184 /* NOTE: increment on final dst if */
185 uint64_t ifs6_reass_fail; /* # of reass failures */
186 /* NOTE: may not be packet count */
187 /* NOTE: increment on final dst if */
188 uint64_t ifs6_in_mcast; /* # of inbound multicast datagrams */
189 uint64_t ifs6_out_mcast; /* # of outbound multicast datagrams */
190};
191
192/*
193 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
194 * XXX: I'm not sure if this file is the right place for this structure...
195 */
196struct icmp6_ifstat {
197 /*
198 * Input statistics
199 */
200 /* ipv6IfIcmpInMsgs, total # of input messages */
201 uint64_t ifs6_in_msg;
202 /* ipv6IfIcmpInErrors, # of input error messages */
203 uint64_t ifs6_in_error;
204 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
205 uint64_t ifs6_in_dstunreach;
206 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
207 uint64_t ifs6_in_adminprohib;
208 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
209 uint64_t ifs6_in_timeexceed;
210 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
211 uint64_t ifs6_in_paramprob;
212 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
213 uint64_t ifs6_in_pkttoobig;
214 /* ipv6IfIcmpInEchos, # of input echo requests */
215 uint64_t ifs6_in_echo;
216 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
217 uint64_t ifs6_in_echoreply;
218 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
219 uint64_t ifs6_in_routersolicit;
220 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
221 uint64_t ifs6_in_routeradvert;
222 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
223 uint64_t ifs6_in_neighborsolicit;
224 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
225 uint64_t ifs6_in_neighboradvert;
226 /* ipv6IfIcmpInRedirects, # of input redirects */
227 uint64_t ifs6_in_redirect;
228 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
229 uint64_t ifs6_in_mldquery;
230 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
231 uint64_t ifs6_in_mldreport;
232 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
233 uint64_t ifs6_in_mlddone;
234
235 /*
236 * Output statistics. We should solve unresolved routing problem...
237 */
238 /* ipv6IfIcmpOutMsgs, total # of output messages */
239 uint64_t ifs6_out_msg;
240 /* ipv6IfIcmpOutErrors, # of output error messages */
241 uint64_t ifs6_out_error;
242 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
243 uint64_t ifs6_out_dstunreach;
244 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
245 uint64_t ifs6_out_adminprohib;
246 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
247 uint64_t ifs6_out_timeexceed;
248 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
249 uint64_t ifs6_out_paramprob;
250 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
251 uint64_t ifs6_out_pkttoobig;
252 /* ipv6IfIcmpOutEchos, # of output echo requests */
253 uint64_t ifs6_out_echo;
254 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
255 uint64_t ifs6_out_echoreply;
256 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
257 uint64_t ifs6_out_routersolicit;
258 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
259 uint64_t ifs6_out_routeradvert;
260 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
261 uint64_t ifs6_out_neighborsolicit;
262 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
263 uint64_t ifs6_out_neighboradvert;
264 /* ipv6IfIcmpOutRedirects, # of output redirects */
265 uint64_t ifs6_out_redirect;
266 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
267 uint64_t ifs6_out_mldquery;
268 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
269 uint64_t ifs6_out_mldreport;
270 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
271 uint64_t ifs6_out_mlddone;
272};
273
274struct in6_ifreq {
275 char ifr_name[IFNAMSIZ];
276 union {
277 struct sockaddr_in6 ifru_addr;
278 struct sockaddr_in6 ifru_dstaddr;
279 int ifru_flags;
280 int ifru_flags6;
281 int ifru_metric;
282 caddr_t ifru_data;
283 struct in6_addrlifetime ifru_lifetime;
284 struct in6_ifstat ifru_stat;
285 struct icmp6_ifstat ifru_icmp6stat;
286 u_int32_t ifru_scope_id[16];
287 } ifr_ifru;
288};
289
290struct in6_aliasreq {
291 char ifra_name[IFNAMSIZ];
292 struct sockaddr_in6 ifra_addr;
293 struct sockaddr_in6 ifra_dstaddr;
294 struct sockaddr_in6 ifra_prefixmask;
295 int ifra_flags;
296 struct in6_addrlifetime ifra_lifetime;
297 int ifra_vhid;
298};
299
300/* pre-10.x compat */
301struct oin6_aliasreq {
302 char ifra_name[IFNAMSIZ];
303 struct sockaddr_in6 ifra_addr;
304 struct sockaddr_in6 ifra_dstaddr;
305 struct sockaddr_in6 ifra_prefixmask;
306 int ifra_flags;
307 struct in6_addrlifetime ifra_lifetime;
308};
309
310/* prefix type macro */
311#define IN6_PREFIX_ND 1
312#define IN6_PREFIX_RR 2
313
314/*
315 * prefix related flags passed between kernel(NDP related part) and
316 * user land command(ifconfig) and daemon(rtadvd).
317 */
318struct in6_prflags {
319 struct prf_ra {
320 u_char onlink : 1;
321 u_char autonomous : 1;
322 u_char reserved : 6;
323 } prf_ra;
324 u_char prf_reserved1;
325 u_short prf_reserved2;
326 /* want to put this on 4byte offset */
327 struct prf_rr {
328 u_char decrvalid : 1;
329 u_char decrprefd : 1;
330 u_char reserved : 6;
331 } prf_rr;
332 u_char prf_reserved3;
333 u_short prf_reserved4;
334};
335
336struct in6_prefixreq {
337 char ipr_name[IFNAMSIZ];
338 u_char ipr_origin;
339 u_char ipr_plen;
340 u_int32_t ipr_vltime;
341 u_int32_t ipr_pltime;
342 struct in6_prflags ipr_flags;
343 struct sockaddr_in6 ipr_prefix;
344};
345
346#define PR_ORIG_RA 0
347#define PR_ORIG_RR 1
348#define PR_ORIG_STATIC 2
349#define PR_ORIG_KERNEL 3
350
351#define ipr_raf_onlink ipr_flags.prf_ra.onlink
352#define ipr_raf_auto ipr_flags.prf_ra.autonomous
353
354#define ipr_statef_onlink ipr_flags.prf_state.onlink
355
356#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
357#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
358
359struct in6_rrenumreq {
360 char irr_name[IFNAMSIZ];
361 u_char irr_origin;
362 u_char irr_m_len; /* match len for matchprefix */
363 u_char irr_m_minlen; /* minlen for matching prefix */
364 u_char irr_m_maxlen; /* maxlen for matching prefix */
365 u_char irr_u_uselen; /* uselen for adding prefix */
366 u_char irr_u_keeplen; /* keeplen from matching prefix */
367 struct irr_raflagmask {
368 u_char onlink : 1;
369 u_char autonomous : 1;
370 u_char reserved : 6;
371 } irr_raflagmask;
372 u_int32_t irr_vltime;
373 u_int32_t irr_pltime;
374 struct in6_prflags irr_flags;
375 struct sockaddr_in6 irr_matchprefix;
376 struct sockaddr_in6 irr_useprefix;
377};
378
379#define irr_raf_mask_onlink irr_raflagmask.onlink
380#define irr_raf_mask_auto irr_raflagmask.autonomous
381#define irr_raf_mask_reserved irr_raflagmask.reserved
382
383#define irr_raf_onlink irr_flags.prf_ra.onlink
384#define irr_raf_auto irr_flags.prf_ra.autonomous
385
386#define irr_statef_onlink irr_flags.prf_state.onlink
387
388#define irr_rrf irr_flags.prf_rr
389#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
390#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
391
392/*
393 * Given a pointer to an in6_ifaddr (ifaddr),
394 * return a pointer to the addr as a sockaddr_in6
395 */
396#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
397#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
398#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
399#define IA6_SIN6(ia) (&((ia)->ia_addr))
400#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
401#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
402#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
403
404#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
405
406#ifdef _KERNEL
407#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
408 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
409 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
410 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
411 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
412#define IN6_MASK_ADDR(a, m) do { \
413 (a)->s6_addr32[0] &= (m)->s6_addr32[0]; \
414 (a)->s6_addr32[1] &= (m)->s6_addr32[1]; \
415 (a)->s6_addr32[2] &= (m)->s6_addr32[2]; \
416 (a)->s6_addr32[3] &= (m)->s6_addr32[3]; \
417} while (0)
418#endif
419
420#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
421#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
422
423#ifdef _KERNEL
424/*
425 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
426 * we do not shift numbers for binary compatibility.
427 */
428#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
429#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
430#endif
431
432#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
433#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
434
435#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
436#define OSIOCAIFADDR_IN6 _IOW('i', 26, struct oin6_aliasreq)
437#define SIOCAIFADDR_IN6 _IOW('i', 27, struct in6_aliasreq)
438
439#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
440#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
441#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
442
443#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
444
445#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
446#ifdef _KERNEL
447/* XXX: SIOCGPRLST_IN6 is exposed in KAME but in6_oprlist is not. */
448#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist)
449#endif
450#ifdef _KERNEL
451#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
452#endif
453#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
454#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq)
455#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
456#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
457#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
458#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
459
460#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
461#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
462#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
463#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
464
465#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
466#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
467
468#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
469
470#define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
471#define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
472#define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
473
474#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
475#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
476#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
477#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
478#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
479 struct in6_rrenumreq) /* change */
480#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
481 struct in6_rrenumreq) /* set global */
482
483#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
484 struct sioc_sg_req6) /* get s,g pkt cnt */
485#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
486 struct sioc_mif_req6) /* get pkt cnt per if */
487
488#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
489#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
490
491#define IN6_IFF_ANYCAST 0x01 /* anycast address */
492#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
493#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
494#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
495#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
496#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
497 * (used only at first SIOC* call)
498 */
499#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
500#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
501#define IN6_IFF_PREFER_SOURCE 0x0100 /* preferred address for SAS */
502#define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management.
503 * XXX: this should be temporary.
504 */
505
506/* do not input/output */
507#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
508
509#ifdef _KERNEL
510#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
511#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
512#endif
513
514#ifdef _KERNEL
515VNET_DECLARE(struct in6_ifaddrhead, in6_ifaddrhead);
516VNET_DECLARE(struct in6_ifaddrlisthead *, in6_ifaddrhashtbl);
517VNET_DECLARE(u_long, in6_ifaddrhmask);
518#define V_in6_ifaddrhead VNET(in6_ifaddrhead)
519#define V_in6_ifaddrhashtbl VNET(in6_ifaddrhashtbl)
520#define V_in6_ifaddrhmask VNET(in6_ifaddrhmask)
521
522#define IN6ADDR_NHASH_LOG2 8
523#define IN6ADDR_NHASH (1 << IN6ADDR_NHASH_LOG2)
524#define IN6ADDR_HASHVAL(x) (in6_addrhash(x))
525#define IN6ADDR_HASH(x) \
526 (&V_in6_ifaddrhashtbl[IN6ADDR_HASHVAL(x) & V_in6_ifaddrhmask])
527
528static __inline uint32_t
529in6_addrhash(const struct in6_addr *in6)
530{
531 uint32_t x;
532
533 x = in6->s6_addr32[0] ^ in6->s6_addr32[1] ^ in6->s6_addr32[2] ^
534 in6->s6_addr32[3];
535 return (fnv_32_buf(&x, sizeof(x), FNV1_32_INIT));
536}
537
538extern struct rwlock in6_ifaddr_lock;
539#define IN6_IFADDR_LOCK_ASSERT( ) rw_assert(&in6_ifaddr_lock, RA_LOCKED)
540#define IN6_IFADDR_RLOCK() rw_rlock(&in6_ifaddr_lock)
541#define IN6_IFADDR_RLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_RLOCKED)
542#define IN6_IFADDR_RUNLOCK() rw_runlock(&in6_ifaddr_lock)
543#define IN6_IFADDR_WLOCK() rw_wlock(&in6_ifaddr_lock)
544#define IN6_IFADDR_WLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_WLOCKED)
545#define IN6_IFADDR_WUNLOCK() rw_wunlock(&in6_ifaddr_lock)
546
547#define in6_ifstat_inc(ifp, tag) \
548do { \
549 if (ifp) \
550 counter_u64_add(((struct in6_ifextra *) \
551 ((ifp)->if_afdata[AF_INET6]))->in6_ifstat[ \
552 offsetof(struct in6_ifstat, tag) / sizeof(uint64_t)], 1);\
553} while (/*CONSTCOND*/ 0)
554
555extern u_char inet6ctlerrmap[];
556VNET_DECLARE(unsigned long, in6_maxmtu);
557#define V_in6_maxmtu VNET(in6_maxmtu)
558#endif /* _KERNEL */
559
560/*
561 * IPv6 multicast MLD-layer source entry.
562 */
563struct ip6_msource {
564 RB_ENTRY(ip6_msource) im6s_link; /* RB tree links */
565 struct in6_addr im6s_addr;
566 struct im6s_st {
567 uint16_t ex; /* # of exclusive members */
568 uint16_t in; /* # of inclusive members */
569 } im6s_st[2]; /* state at t0, t1 */
570 uint8_t im6s_stp; /* pending query */
571};
572RB_HEAD(ip6_msource_tree, ip6_msource);
573
574/*
575 * IPv6 multicast PCB-layer source entry.
576 *
577 * NOTE: overlapping use of struct ip6_msource fields at start.
578 */
579struct in6_msource {
580 RB_ENTRY(ip6_msource) im6s_link; /* Common field */
581 struct in6_addr im6s_addr; /* Common field */
582 uint8_t im6sl_st[2]; /* state before/at commit */
583};
584
585#ifdef _KERNEL
586/*
587 * IPv6 source tree comparison function.
588 *
589 * An ordered predicate is necessary; bcmp() is not documented to return
590 * an indication of order, memcmp() is, and is an ISO C99 requirement.
591 */
592static __inline int
593ip6_msource_cmp(const struct ip6_msource *a, const struct ip6_msource *b)
594{
595
596 return (memcmp(&a->im6s_addr, &b->im6s_addr, sizeof(struct in6_addr)));
597}
598RB_PROTOTYPE(ip6_msource_tree, ip6_msource, im6s_link, ip6_msource_cmp);
599#endif /* _KERNEL */
600
601/*
602 * IPv6 multicast PCB-layer group filter descriptor.
603 */
604struct in6_mfilter {
605 struct ip6_msource_tree im6f_sources; /* source list for (S,G) */
606 u_long im6f_nsrc; /* # of source entries */
607 uint8_t im6f_st[2]; /* state before/at commit */
608};
609
610/*
611 * Legacy KAME IPv6 multicast membership descriptor.
612 */
613struct in6_multi_mship {
614 struct in6_multi *i6mm_maddr;
615 LIST_ENTRY(in6_multi_mship) i6mm_chain;
616};
617
618/*
619 * IPv6 group descriptor.
620 *
621 * For every entry on an ifnet's if_multiaddrs list which represents
622 * an IP multicast group, there is one of these structures.
623 *
624 * If any source filters are present, then a node will exist in the RB-tree
625 * to permit fast lookup by source whenever an operation takes place.
626 * This permits pre-order traversal when we issue reports.
627 * Source filter trees are kept separately from the socket layer to
628 * greatly simplify locking.
629 *
630 * When MLDv2 is active, in6m_timer is the response to group query timer.
631 * The state-change timer in6m_sctimer is separate; whenever state changes
632 * for the group the state change record is generated and transmitted,
633 * and kept if retransmissions are necessary.
634 *
635 * FUTURE: in6m_link is now only used when groups are being purged
636 * on a detaching ifnet. It could be demoted to a SLIST_ENTRY, but
637 * because it is at the very start of the struct, we can't do this
638 * w/o breaking the ABI for ifmcstat.
639 */
640struct in6_multi {
641 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
642 struct in6_addr in6m_addr; /* IPv6 multicast address */
643 struct ifnet *in6m_ifp; /* back pointer to ifnet */
644 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
645 u_int in6m_refcount; /* reference count */
646 u_int in6m_state; /* state of the membership */
647 u_int in6m_timer; /* MLD6 listener report timer */
648
649 /* New fields for MLDv2 follow. */
650 struct mld_ifinfo *in6m_mli; /* MLD info */
651 SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */
652 struct ip6_msource_tree in6m_srcs; /* tree of sources */
653 u_long in6m_nsrc; /* # of tree entries */
654
655 struct ifqueue in6m_scq; /* queue of pending
656 * state-change packets */
657 struct timeval in6m_lastgsrtv; /* last G-S-R query */
658 uint16_t in6m_sctimer; /* state-change timer */
659 uint16_t in6m_scrv; /* state-change rexmit count */
660
661 /*
662 * SSM state counters which track state at T0 (the time the last
663 * state-change report's RV timer went to zero) and T1
664 * (time of pending report, i.e. now).
665 * Used for computing MLDv2 state-change reports. Several refcounts
666 * are maintained here to optimize for common use-cases.
667 */
668 struct in6m_st {
669 uint16_t iss_fmode; /* MLD filter mode */
670 uint16_t iss_asm; /* # of ASM listeners */
671 uint16_t iss_ex; /* # of exclusive members */
672 uint16_t iss_in; /* # of inclusive members */
673 uint16_t iss_rec; /* # of recorded sources */
674 } in6m_st[2]; /* state at t0, t1 */
675};
676
677/*
678 * Helper function to derive the filter mode on a source entry
679 * from its internal counters. Predicates are:
680 * A source is only excluded if all listeners exclude it.
681 * A source is only included if no listeners exclude it,
682 * and at least one listener includes it.
683 * May be used by ifmcstat(8).
684 */
685static __inline uint8_t
686im6s_get_mode(const struct in6_multi *inm, const struct ip6_msource *ims,
687 uint8_t t)
688{
689
690 t = !!t;
691 if (inm->in6m_st[t].iss_ex > 0 &&
692 inm->in6m_st[t].iss_ex == ims->im6s_st[t].ex)
693 return (MCAST_EXCLUDE);
694 else if (ims->im6s_st[t].in > 0 && ims->im6s_st[t].ex == 0)
695 return (MCAST_INCLUDE);
696 return (MCAST_UNDEFINED);
697}
698
699#ifdef _KERNEL
700
701/*
702 * Lock macros for IPv6 layer multicast address lists. IPv6 lock goes
703 * before link layer multicast locks in the lock order. In most cases,
704 * consumers of IN_*_MULTI() macros should acquire the locks before
705 * calling them; users of the in_{add,del}multi() functions should not.
706 */
707extern struct mtx in6_multi_mtx;
708#define IN6_MULTI_LOCK() mtx_lock(&in6_multi_mtx)
709#define IN6_MULTI_UNLOCK() mtx_unlock(&in6_multi_mtx)
710#define IN6_MULTI_LOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_OWNED)
711#define IN6_MULTI_UNLOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_NOTOWNED)
712
713/*
714 * Look up an in6_multi record for an IPv6 multicast address
715 * on the interface ifp.
716 * If no record found, return NULL.
717 *
718 * SMPng: The IN6_MULTI_LOCK and IF_ADDR_LOCK on ifp must be held.
719 */
720static __inline struct in6_multi *
721in6m_lookup_locked(struct ifnet *ifp, const struct in6_addr *mcaddr)
722{
723 struct ifmultiaddr *ifma;
724 struct in6_multi *inm;
725
726 IN6_MULTI_LOCK_ASSERT();
727 IF_ADDR_LOCK_ASSERT(ifp);
728
729 inm = NULL;
730 TAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) {
731 if (ifma->ifma_addr->sa_family == AF_INET6) {
732 inm = (struct in6_multi *)ifma->ifma_protospec;
733 if (IN6_ARE_ADDR_EQUAL(&inm->in6m_addr, mcaddr))
734 break;
735 inm = NULL;
736 }
737 }
738 return (inm);
739}
740
741/*
742 * Wrapper for in6m_lookup_locked().
743 *
744 * SMPng: Assumes that neithr the IN6_MULTI_LOCK() or IF_ADDR_LOCK() are held.
745 */
746static __inline struct in6_multi *
747in6m_lookup(struct ifnet *ifp, const struct in6_addr *mcaddr)
748{
749 struct in6_multi *inm;
750
751 IN6_MULTI_LOCK();
752 IF_ADDR_RLOCK(ifp);
753 inm = in6m_lookup_locked(ifp, mcaddr);
754 IF_ADDR_RUNLOCK(ifp);
755 IN6_MULTI_UNLOCK();
756
757 return (inm);
758}
759
760/* Acquire an in6_multi record. */
761static __inline void
762in6m_acquire_locked(struct in6_multi *inm)
763{
764
765 IN6_MULTI_LOCK_ASSERT();
766 ++inm->in6m_refcount;
767}
768
769struct ip6_moptions;
770struct sockopt;
771
772/* Multicast KPIs. */
773int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *,
774 const struct sockaddr *, const struct sockaddr *);
775int in6_mc_join(struct ifnet *, const struct in6_addr *,
776 struct in6_mfilter *, struct in6_multi **, int);
777int in6_mc_join_locked(struct ifnet *, const struct in6_addr *,
778 struct in6_mfilter *, struct in6_multi **, int);
779int in6_mc_leave(struct in6_multi *, struct in6_mfilter *);
780int in6_mc_leave_locked(struct in6_multi *, struct in6_mfilter *);
781void in6m_clear_recorded(struct in6_multi *);
782void in6m_commit(struct in6_multi *);
783void in6m_print(const struct in6_multi *);
784int in6m_record_source(struct in6_multi *, const struct in6_addr *);
785void in6m_release_locked(struct in6_multi *);
786void ip6_freemoptions(struct ip6_moptions *);
787int ip6_getmoptions(struct inpcb *, struct sockopt *);
788int ip6_setmoptions(struct inpcb *, struct sockopt *);
789
790/* Legacy KAME multicast KPIs. */
791struct in6_multi_mship *
792 in6_joingroup(struct ifnet *, struct in6_addr *, int *, int);
793int in6_leavegroup(struct in6_multi_mship *);
794
795/* flags to in6_update_ifa */
796#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
797
798int in6_mask2len(struct in6_addr *, u_char *);
799int in6_control(struct socket *, u_long, caddr_t, struct ifnet *,
800 struct thread *);
801int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
802 struct in6_ifaddr *, int);
803void in6_prepare_ifra(struct in6_aliasreq *, const struct in6_addr *,
804 const struct in6_addr *);
805void in6_purgeaddr(struct ifaddr *);
806int in6if_do_dad(struct ifnet *);
807void in6_savemkludge(struct in6_ifaddr *);
808void *in6_domifattach(struct ifnet *);
809void in6_domifdetach(struct ifnet *, void *);
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