1 /* $NetBSD: in6_var.h,v 1.74 2015/09/06 06:01:01 dholland Exp $ */
2 /* $KAME: in6_var.h,v 1.81 2002/06/08 11:16:51 itojun Exp $ */
3
4 /*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the project nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 /*
34 * Copyright (c) 1985, 1986, 1993
35 * The Regents of the University of California. All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * 3. Neither the name of the University nor the names of its contributors
46 * may be used to endorse or promote products derived from this software
47 * without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 *
61 * @(#)in_var.h 8.1 (Berkeley) 6/10/93
62 */
63
64 #ifndef _NETINET6_IN6_VAR_H_
65 #define _NETINET6_IN6_VAR_H_
66
67 #include <sys/callout.h>
68 #include <sys/ioccom.h>
69
70 /*
71 * Interface address, Internet version. One of these structures
72 * is allocated for each interface with an Internet address.
73 * The ifaddr structure contains the protocol-independent part
74 * of the structure and is assumed to be first.
75 */
76
77 /*
78 * pltime/vltime are just for future reference (required to implements 2
79 * hour rule for hosts). they should never be modified by nd6_timeout or
80 * anywhere else.
81 * userland -> kernel: accept pltime/vltime
82 * kernel -> userland: throw up everything
83 * in kernel: modify preferred/expire only
84 */
85 struct in6_addrlifetime {
86 time_t ia6t_expire; /* valid lifetime expiration time */
87 time_t ia6t_preferred; /* preferred lifetime expiration time */
88 u_int32_t ia6t_vltime; /* valid lifetime */
89 u_int32_t ia6t_pltime; /* prefix lifetime */
90 };
91
92 struct nd_ifinfo;
93 struct in6_ifextra {
94 struct in6_ifstat *in6_ifstat;
95 struct icmp6_ifstat *icmp6_ifstat;
96 struct nd_ifinfo *nd_ifinfo;
97 struct scope6_id *scope6_id;
98 int nprefixes;
99 int ndefrouters;
100 };
101
102 LIST_HEAD(in6_multihead, in6_multi);
103 struct in6_ifaddr {
104 struct ifaddr ia_ifa; /* protocol-independent info */
105 #define ia_ifp ia_ifa.ifa_ifp
106 #define ia_flags ia_ifa.ifa_flags
107 struct sockaddr_in6 ia_addr; /* interface address */
108 struct sockaddr_in6 ia_net; /* network number of interface */
109 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
110 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
111 u_int32_t ia_plen; /* prefix length */
112 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
113 struct in6_multihead ia6_multiaddrs;
114 /* list of multicast addresses */
115 int ia6_flags;
116
117 struct in6_addrlifetime ia6_lifetime;
118 time_t ia6_createtime; /* the creation time of this address, which is
119 * currently used for temporary addresses only.
120 */
121 time_t ia6_updatetime;
122
123 /* back pointer to the ND prefix (for autoconfigured addresses only) */
124 struct nd_prefix *ia6_ndpr;
125
126 /* multicast addresses joined from the kernel */
127 LIST_HEAD(, in6_multi_mship) ia6_memberships;
128 };
129
130 /* control structure to manage address selection policy */
131 struct in6_addrpolicy {
132 struct sockaddr_in6 addr; /* prefix address */
133 struct sockaddr_in6 addrmask; /* prefix mask */
134 int preced; /* precedence */
135 int label; /* matching label */
136 u_quad_t use; /* statistics */
137 };
138
139 /*
140 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
141 */
142 struct in6_ifstat {
143 u_quad_t ifs6_in_receive; /* # of total input datagram */
144 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
145 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
146 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
147 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
148 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
149 /* NOTE: increment on final dst if */
150 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
151 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
152 /* NOTE: fragment timeout is not here */
153 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
154 /* NOTE: increment on final dst if */
155 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
156 /* NOTE: increment on outgoing if */
157 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
158 /* NOTE: does not include forwrads */
159 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
160 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
161 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
162 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
163 /* NOTE: this is # after fragment */
164 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
165 /* NOTE: increment on final dst if */
166 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
167 /* NOTE: this is # after reass */
168 /* NOTE: increment on final dst if */
169 u_quad_t ifs6_reass_fail; /* # of reass failures */
170 /* NOTE: may not be packet count */
171 /* NOTE: increment on final dst if */
172 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
173 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
174 };
175
176 /*
177 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
178 * XXX: I'm not sure if this file is the right place for this structure...
179 */
180 struct icmp6_ifstat {
181 /*
182 * Input statistics
183 */
184 /* ipv6IfIcmpInMsgs, total # of input messages */
185 u_quad_t ifs6_in_msg;
186 /* ipv6IfIcmpInErrors, # of input error messages */
187 u_quad_t ifs6_in_error;
188 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
189 u_quad_t ifs6_in_dstunreach;
190 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
191 u_quad_t ifs6_in_adminprohib;
192 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
193 u_quad_t ifs6_in_timeexceed;
194 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
195 u_quad_t ifs6_in_paramprob;
196 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
197 u_quad_t ifs6_in_pkttoobig;
198 /* ipv6IfIcmpInEchos, # of input echo requests */
199 u_quad_t ifs6_in_echo;
200 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
201 u_quad_t ifs6_in_echoreply;
202 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
203 u_quad_t ifs6_in_routersolicit;
204 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
205 u_quad_t ifs6_in_routeradvert;
206 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
207 u_quad_t ifs6_in_neighborsolicit;
208 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
209 u_quad_t ifs6_in_neighboradvert;
210 /* ipv6IfIcmpInRedirects, # of input redirects */
211 u_quad_t ifs6_in_redirect;
212 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
213 u_quad_t ifs6_in_mldquery;
214 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
215 u_quad_t ifs6_in_mldreport;
216 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
217 u_quad_t ifs6_in_mlddone;
218
219 /*
220 * Output statistics. We should solve unresolved routing problem...
221 */
222 /* ipv6IfIcmpOutMsgs, total # of output messages */
223 u_quad_t ifs6_out_msg;
224 /* ipv6IfIcmpOutErrors, # of output error messages */
225 u_quad_t ifs6_out_error;
226 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
227 u_quad_t ifs6_out_dstunreach;
228 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
229 u_quad_t ifs6_out_adminprohib;
230 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
231 u_quad_t ifs6_out_timeexceed;
232 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
233 u_quad_t ifs6_out_paramprob;
234 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
235 u_quad_t ifs6_out_pkttoobig;
236 /* ipv6IfIcmpOutEchos, # of output echo requests */
237 u_quad_t ifs6_out_echo;
238 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
239 u_quad_t ifs6_out_echoreply;
240 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
241 u_quad_t ifs6_out_routersolicit;
242 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
243 u_quad_t ifs6_out_routeradvert;
244 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
245 u_quad_t ifs6_out_neighborsolicit;
246 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
247 u_quad_t ifs6_out_neighboradvert;
248 /* ipv6IfIcmpOutRedirects, # of output redirects */
249 u_quad_t ifs6_out_redirect;
250 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
251 u_quad_t ifs6_out_mldquery;
252 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
253 u_quad_t ifs6_out_mldreport;
254 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
255 u_quad_t ifs6_out_mlddone;
256 };
257
258 /*
259 * If you make changes that change the size of in6_ifreq,
260 * make sure you fix compat/netinet6/in6_var.h
261 */
262 struct in6_ifreq {
263 char ifr_name[IFNAMSIZ];
264 union {
265 struct sockaddr_in6 ifru_addr;
266 struct sockaddr_in6 ifru_dstaddr;
267 short ifru_flags;
268 int ifru_flags6;
269 int ifru_metric;
270 void * ifru_data;
271 struct in6_addrlifetime ifru_lifetime;
272 struct in6_ifstat ifru_stat;
273 struct icmp6_ifstat ifru_icmp6stat;
274 } ifr_ifru;
275 };
276
277 struct in6_aliasreq {
278 char ifra_name[IFNAMSIZ];
279 struct sockaddr_in6 ifra_addr;
280 struct sockaddr_in6 ifra_dstaddr;
281 struct sockaddr_in6 ifra_prefixmask;
282 int ifra_flags;
283 struct in6_addrlifetime ifra_lifetime;
284 };
285
286 /* prefix type macro */
287 #define IN6_PREFIX_ND 1
288 #define IN6_PREFIX_RR 2
289
290 /*
291 * prefix related flags passed between kernel(NDP related part) and
292 * user land command(ifconfig) and daemon(rtadvd).
293 * Note: We originally intended to use prf_ra{} only within in6_prflags{}, but
294 * it was (probably unintentionally) used in nd6.h as well. Since C++ does
295 * not allow such a reference, prf_ra{} was then moved outside. In general,
296 * however, this structure should not be used directly.
297 */
298 struct prf_ra {
299 u_int32_t onlink : 1;
300 u_int32_t autonomous : 1;
301 u_int32_t router : 1;
302 u_int32_t reserved : 5;
303 };
304
305 struct in6_prflags {
306 struct prf_ra prf_ra;
307 u_char prf_reserved1;
308 u_short prf_reserved2;
309 /* want to put this on 4byte offset */
310 struct prf_rr {
311 u_int32_t decrvalid : 1;
312 u_int32_t decrprefd : 1;
313 u_int32_t reserved : 6;
314 } prf_rr;
315 u_char prf_reserved3;
316 u_short prf_reserved4;
317 };
318
319 struct in6_prefixreq {
320 char ipr_name[IFNAMSIZ];
321 u_char ipr_origin;
322 u_char ipr_plen;
323 u_int32_t ipr_vltime;
324 u_int32_t ipr_pltime;
325 struct in6_prflags ipr_flags;
326 struct sockaddr_in6 ipr_prefix;
327 };
328
329 #define PR_ORIG_RA 0
330 #define PR_ORIG_RR 1
331 #define PR_ORIG_STATIC 2
332 #define PR_ORIG_KERNEL 3
333
334 #define ipr_raf_onlink ipr_flags.prf_ra.onlink
335 #define ipr_raf_auto ipr_flags.prf_ra.autonomous
336
337 #define ipr_statef_onlink ipr_flags.prf_state.onlink
338
339 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
340 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
341
342 struct in6_rrenumreq {
343 char irr_name[IFNAMSIZ];
344 u_char irr_origin;
345 u_char irr_m_len; /* match len for matchprefix */
346 u_char irr_m_minlen; /* minlen for matching prefix */
347 u_char irr_m_maxlen; /* maxlen for matching prefix */
348 u_char irr_u_uselen; /* uselen for adding prefix */
349 u_char irr_u_keeplen; /* keeplen from matching prefix */
350 struct irr_raflagmask {
351 u_int32_t onlink : 1;
352 u_int32_t autonomous : 1;
353 u_int32_t reserved : 6;
354 } irr_raflagmask;
355 u_int32_t irr_vltime;
356 u_int32_t irr_pltime;
357 struct in6_prflags irr_flags;
358 struct sockaddr_in6 irr_matchprefix;
359 struct sockaddr_in6 irr_useprefix;
360 };
361
362 #define irr_raf_mask_onlink irr_raflagmask.onlink
363 #define irr_raf_mask_auto irr_raflagmask.autonomous
364 #define irr_raf_mask_reserved irr_raflagmask.reserved
365
366 #define irr_raf_onlink irr_flags.prf_ra.onlink
367 #define irr_raf_auto irr_flags.prf_ra.autonomous
368
369 #define irr_statef_onlink irr_flags.prf_state.onlink
370
371 #define irr_rrf irr_flags.prf_rr
372 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
373 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
374
375 /*
376 * Given a pointer to an in6_ifaddr (ifaddr),
377 * return a pointer to the addr as a sockaddr_in6
378 */
379 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
380 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
381 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
382 #define IA6_SIN6(ia) (&((ia)->ia_addr))
383 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
384 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
385 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
386
387 #ifdef _KERNEL
388 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
389 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
390 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
391 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
392 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
393 #endif
394
395 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
396 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
397
398 #ifdef _KERNEL
399 /*
400 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
401 * we do not shift numbers for binary compatibility.
402 */
403 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
404 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
405 #endif
406
407 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
408 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
409
410 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
411 /* 26 was OSIOCAIFADDR_IN6 */
412
413 /* 70 was OSIOCSIFPHYADDR_IN6 */
414 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
415 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
416
417 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
418
419 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
420 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist)
421 #ifdef _KERNEL
422 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
423 #endif
424 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
425 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
426 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
427 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
428 /* 81 was old SIOCGIFALIFETIME_IN6 */
429 #if 0
430 /* withdrawn - do not reuse number 82 */
431 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
432 #endif
433 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
434 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
435
436 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
437 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
438
439 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
440
441 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
442 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
443 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
444 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
445 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
446 struct in6_rrenumreq) /* change */
447 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
448 struct in6_rrenumreq) /* set global */
449 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 106, struct in6_ifreq)
450 #define SIOCAIFADDR_IN6 _IOW('i', 107, struct in6_aliasreq)
451 #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
452 #define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq)
453 #define SIOCSIFPHYADDR_IN6 _IOW('i', 110, struct in6_aliasreq)
454
455
456 /* XXX: Someone decided to switch to 'u' here for unknown reasons! */
457 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
458 struct sioc_sg_req6) /* get s,g pkt cnt */
459 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
460 struct sioc_mif_req6) /* get pkt cnt per if */
461 #define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
462 #define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
463
464 #define IN6_IFF_ANYCAST 0x01 /* anycast address */
465 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */
466 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
467 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
468 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
469 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
470 * (used only at first SIOC* call)
471 */
472 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
473 #define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
474
475 /* do not input/output */
476 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
477
478 #ifdef _KERNEL
479 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
480 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
481 #endif
482
483 #ifdef _KERNEL
484
485 #include <net/pktqueue.h>
486
487 extern pktqueue_t *ip6_pktq;
488
489 MALLOC_DECLARE(M_IP6OPT);
490
491 extern struct in6_ifaddr *in6_ifaddr;
492
493 #define in6_ifstat_inc(ifp, tag) \
494 do { \
495 if (ifp) \
496 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
497 } while (/*CONSTCOND*/ 0)
498
499 extern const struct in6_addr zeroin6_addr;
500 extern const u_char inet6ctlerrmap[];
501 extern unsigned long in6_maxmtu;
502 extern bool in6_present;
503
504 /*
505 * Macro for finding the internet address structure (in6_ifaddr) corresponding
506 * to a given interface (ifnet structure).
507 */
508 static inline struct in6_ifaddr *
ifp_to_ia6(struct ifnet * ifp)509 ifp_to_ia6(struct ifnet *ifp)
510 {
511 struct ifaddr *ifa;
512
513 IFADDR_FOREACH(ifa, ifp) {
514 if (ifa->ifa_addr == NULL)
515 continue;
516 if (ifa->ifa_addr->sa_family == AF_INET6)
517 break;
518 }
519 return (struct in6_ifaddr *)ifa;
520 }
521
522 #define IFP_TO_IA6(__ifp, __ia) \
523 do { \
524 (__ia) = ifp_to_ia6((__ifp)); \
525 } while (/*CONSTCOND*/0)
526
527
528 #endif /* _KERNEL */
529
530 /*
531 * Multi-cast membership entry. One for each group/ifp that a PCB
532 * belongs to.
533 */
534 struct in6_multi_mship {
535 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
536 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
537 };
538
539 struct in6_multi {
540 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
541 struct in6_addr in6m_addr; /* IP6 multicast address */
542 struct ifnet *in6m_ifp; /* back pointer to ifnet */
543 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */
544 u_int in6m_refcount; /* # membership claims by sockets */
545 u_int in6m_state; /* state of the membership */
546 int in6m_timer; /* delay to send the 1st report */
547 struct timeval in6m_timer_expire; /* when the timer expires */
548 callout_t in6m_timer_ch;
549 };
550
551 #define IN6M_TIMER_UNDEF -1
552
553
554 #ifdef _KERNEL
555 /* flags to in6_update_ifa */
556 #define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
557
558 /*
559 * Structure used by macros below to remember position when stepping through
560 * all of the in6_multi records.
561 */
562 struct in6_multistep {
563 struct in6_ifaddr *i_ia;
564 struct in6_multi *i_in6m;
565 };
566
567 /*
568 * Macros for looking up the in6_multi record for a given IP6 multicast
569 * address on a given interface. If no matching record is found, "in6m"
570 * returns NULL.
571 */
572
573 static inline struct in6_multi *
in6_lookup_multi(struct in6_addr * addr,struct ifnet * ifp)574 in6_lookup_multi(struct in6_addr *addr, struct ifnet *ifp)
575 {
576 struct in6_multi *in6m;
577 struct in6_ifaddr *ia;
578
579 if ((ia = ifp_to_ia6(ifp)) == NULL)
580 return NULL;
581 LIST_FOREACH(in6m, &ia->ia6_multiaddrs, in6m_entry) {
582 if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, addr))
583 break;
584 }
585 return in6m;
586 }
587
588 #define IN6_LOOKUP_MULTI(__addr, __ifp, __in6m) \
589 /* struct in6_addr __addr; */ \
590 /* struct ifnet *__ifp; */ \
591 /* struct in6_multi *__in6m; */ \
592 do { \
593 (__in6m) = in6_lookup_multi(&(__addr), (__ifp)); \
594 } while (/*CONSTCOND*/ 0)
595
596 /*
597 * Macro to step through all of the in6_multi records, one at a time.
598 * The current position is remembered in "step", which the caller must
599 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
600 * and get the first record. Both macros return a NULL "in6m" when there
601 * are no remaining records.
602 */
603 static inline struct in6_multi *
in6_next_multi(struct in6_multistep * step)604 in6_next_multi(struct in6_multistep *step)
605 {
606 struct in6_multi *in6m;
607
608 if ((in6m = step->i_in6m) != NULL) {
609 step->i_in6m = LIST_NEXT(in6m, in6m_entry);
610 return in6m;
611 }
612 while (step->i_ia != NULL) {
613 in6m = LIST_FIRST(&step->i_ia->ia6_multiaddrs);
614 step->i_ia = step->i_ia->ia_next;
615 if (in6m != NULL) {
616 step->i_in6m = LIST_NEXT(in6m, in6m_entry);
617 break;
618 }
619 }
620 return in6m;
621 }
622
623 static inline struct in6_multi *
in6_first_multi(struct in6_multistep * step)624 in6_first_multi(struct in6_multistep *step)
625 {
626 step->i_ia = in6_ifaddr;
627 step->i_in6m = NULL;
628 return in6_next_multi(step);
629 }
630
631 #define IN6_NEXT_MULTI(__step, __in6m) \
632 /* struct in6_multistep __step; */ \
633 /* struct in6_multi *__in6m; */ \
634 do { \
635 (__in6m) = in6_next_multi(&(__step)); \
636 } while (/*CONSTCOND*/ 0)
637
638 #define IN6_FIRST_MULTI(__step, __in6m) \
639 /* struct in6_multistep __step; */ \
640 /* struct in6_multi *__in6m */ \
641 do { \
642 (__in6m) = in6_first_multi(&(__step)); \
643 } while (/*CONSTCOND*/ 0)
644
645
646 #if 0
647 /*
648 * Macros for looking up the in6_multi_mship record for a given IP6 multicast
649 * address on a given interface. If no matching record is found, "imm"
650 * returns NULL.
651 */
652 static inline struct in6_multi_mship *
653 in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp,
654 struct ip6_moptions *imop)
655 {
656 struct in6_multi_mship *imm;
657
658 LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) {
659 if (imm->i6mm_maddr->in6m_ifp != ifp)
660 continue;
661 if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr,
662 addr))
663 break;
664 }
665 return imm;
666 }
667
668 #define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \
669 /* struct in6_addr __addr; */ \
670 /* struct ifnet *__ifp; */ \
671 /* struct ip6_moptions *__imop */ \
672 /* struct in6_multi_mship *__imm; */ \
673 do { \
674 (__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \
675 } while (/*CONSTCOND*/ 0)
676 #endif
677
678 struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *,
679 int *, int);
680 void in6_delmulti(struct in6_multi *);
681 struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *,
682 int *, int);
683 int in6_leavegroup(struct in6_multi_mship *);
684 int in6_mask2len(struct in6_addr *, u_char *);
685 int in6_control(struct socket *, u_long, void *, struct ifnet *);
686 int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
687 struct in6_ifaddr *, int);
688 void in6_purgeaddr(struct ifaddr *);
689 void in6_purgeif(struct ifnet *);
690 void in6_savemkludge(struct in6_ifaddr *);
691 void in6_setmaxmtu (void);
692 int in6_if2idlen (struct ifnet *);
693 void *in6_domifattach(struct ifnet *);
694 void in6_domifdetach(struct ifnet *, void *);
695 void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *);
696 void in6_ifremlocal(struct ifaddr *);
697 void in6_ifaddlocal(struct ifaddr *);
698 void in6_createmkludge(struct ifnet *);
699 void in6_purgemkludge(struct ifnet *);
700 struct in6_ifaddr *in6ifa_ifpforlinklocal(const struct ifnet *, int);
701 struct in6_ifaddr *in6ifa_ifpwithaddr(const struct ifnet *,
702 const struct in6_addr *);
703 char *ip6_sprintf(const struct in6_addr *);
704 int in6_matchlen(struct in6_addr *, struct in6_addr *);
705 int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int);
706 void in6_prefixlen2mask(struct in6_addr *, int);
707 void in6_purgeprefix(struct ifnet *);
708
709 int ip6flow_fastforward(struct mbuf **); /* IPv6 fast forward routine */
710
711 int in6_src_ioctl(u_long, void *);
712 int in6_is_addr_deprecated(struct sockaddr_in6 *);
713 struct in6pcb;
714 #endif /* _KERNEL */
715
716 #endif /* !_NETINET6_IN6_VAR_H_ */
717