Bring CARP into the tree. CARP = Common Address Redundancy Protocol, which
[dragonfly.git] / sys / netinet6 / in6_var.h
CommitLineData
984263bc 1/* $FreeBSD: src/sys/netinet6/in6_var.h,v 1.3.2.3 2002/04/28 05:40:27 suz Exp $ */
0d16ba1d 2/* $DragonFly: src/sys/netinet6/in6_var.h,v 1.8 2007/08/16 20:03:58 dillon Exp $ */
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3/* $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $ */
4
5/*
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34/*
35 * Copyright (c) 1985, 1986, 1993
36 * The Regents of the University of California. All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 * SUCH DAMAGE.
65 *
66 * @(#)in_var.h 8.1 (Berkeley) 6/10/93
67 */
68
69#ifndef _NETINET6_IN6_VAR_H_
70#define _NETINET6_IN6_VAR_H_
71
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72#ifndef _SYS_TYPES_H_
73#include <sys/types.h>
74#endif
75#ifndef _SYS_TIME_H_
76#include <sys/time.h>
77#endif
78#ifndef _NET_IF_VAR_H_
79#include <net/if_var.h>
80#endif
81#ifndef _NETINET_IN_H_
82#include <netinet/in.h>
83#endif
84
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85/*
86 * Interface address, Internet version. One of these structures
87 * is allocated for each interface with an Internet address.
88 * The ifaddr structure contains the protocol-independent part
89 * of the structure and is assumed to be first.
90 */
91
92/*
93 * pltime/vltime are just for future reference (required to implements 2
94 * hour rule for hosts). they should never be modified by nd6_timeout or
95 * anywhere else.
96 * userland -> kernel: accept pltime/vltime
97 * kernel -> userland: throw up everything
98 * in kernel: modify preferred/expire only
99 */
100struct in6_addrlifetime {
101 time_t ia6t_expire; /* valid lifetime expiration time */
102 time_t ia6t_preferred; /* preferred lifetime expiration time */
103 u_int32_t ia6t_vltime; /* valid lifetime */
104 u_int32_t ia6t_pltime; /* prefix lifetime */
105};
106
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107struct nd_ifinfo;
108struct scope6_id;
1bd40720 109
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110struct in6_ifextra {
111 struct in6_ifstat *in6_ifstat;
112 struct icmp6_ifstat *icmp6_ifstat;
113 struct nd_ifinfo *nd_ifinfo;
114 struct scope6_id *scope6_id;
115};
116
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117struct in6_ifaddr {
118 struct ifaddr ia_ifa; /* protocol-independent info */
119#define ia_ifp ia_ifa.ifa_ifp
120#define ia_flags ia_ifa.ifa_flags
121 struct sockaddr_in6 ia_addr; /* interface address */
122 struct sockaddr_in6 ia_net; /* network number of interface */
123 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
124 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
125 u_int32_t ia_plen; /* prefix length */
126 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
127 int ia6_flags;
128
129 struct in6_addrlifetime ia6_lifetime;
130 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */
131
132 struct nd_prefix *ia6_ndpr; /* back pointer to the ND prefix
133 * (for autoconfigured addresses only)
134 */
135};
136
137/*
138 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
139 */
140struct in6_ifstat {
141 u_quad_t ifs6_in_receive; /* # of total input datagram */
142 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
143 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
144 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
145 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
146 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
147 /* NOTE: increment on final dst if */
148 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
149 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
150 /* NOTE: fragment timeout is not here */
151 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
152 /* NOTE: increment on final dst if */
153 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
154 /* NOTE: increment on outgoing if */
155 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
156 /* NOTE: does not include forwrads */
157 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
158 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
159 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
160 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
161 /* NOTE: this is # after fragment */
162 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
163 /* NOTE: increment on final dst if */
164 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
165 /* NOTE: this is # after reass */
166 /* NOTE: increment on final dst if */
167 u_quad_t ifs6_reass_fail; /* # of reass failures */
168 /* NOTE: may not be packet count */
169 /* NOTE: increment on final dst if */
170 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
171 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
172};
173
174/*
175 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
176 * XXX: I'm not sure if this file is the right place for this structure...
177 */
178struct icmp6_ifstat {
179 /*
180 * Input statistics
181 */
182 /* ipv6IfIcmpInMsgs, total # of input messages */
183 u_quad_t ifs6_in_msg;
184 /* ipv6IfIcmpInErrors, # of input error messages */
185 u_quad_t ifs6_in_error;
186 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
187 u_quad_t ifs6_in_dstunreach;
188 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
189 u_quad_t ifs6_in_adminprohib;
190 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
191 u_quad_t ifs6_in_timeexceed;
192 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
193 u_quad_t ifs6_in_paramprob;
194 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
195 u_quad_t ifs6_in_pkttoobig;
196 /* ipv6IfIcmpInEchos, # of input echo requests */
197 u_quad_t ifs6_in_echo;
198 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
199 u_quad_t ifs6_in_echoreply;
200 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
201 u_quad_t ifs6_in_routersolicit;
202 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
203 u_quad_t ifs6_in_routeradvert;
204 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
205 u_quad_t ifs6_in_neighborsolicit;
206 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
207 u_quad_t ifs6_in_neighboradvert;
208 /* ipv6IfIcmpInRedirects, # of input redirects */
209 u_quad_t ifs6_in_redirect;
210 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
211 u_quad_t ifs6_in_mldquery;
212 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
213 u_quad_t ifs6_in_mldreport;
214 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
215 u_quad_t ifs6_in_mlddone;
216
217 /*
218 * Output statistics. We should solve unresolved routing problem...
219 */
220 /* ipv6IfIcmpOutMsgs, total # of output messages */
221 u_quad_t ifs6_out_msg;
222 /* ipv6IfIcmpOutErrors, # of output error messages */
223 u_quad_t ifs6_out_error;
224 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
225 u_quad_t ifs6_out_dstunreach;
226 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
227 u_quad_t ifs6_out_adminprohib;
228 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
229 u_quad_t ifs6_out_timeexceed;
230 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
231 u_quad_t ifs6_out_paramprob;
232 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
233 u_quad_t ifs6_out_pkttoobig;
234 /* ipv6IfIcmpOutEchos, # of output echo requests */
235 u_quad_t ifs6_out_echo;
236 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
237 u_quad_t ifs6_out_echoreply;
238 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
239 u_quad_t ifs6_out_routersolicit;
240 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
241 u_quad_t ifs6_out_routeradvert;
242 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
243 u_quad_t ifs6_out_neighborsolicit;
244 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
245 u_quad_t ifs6_out_neighboradvert;
246 /* ipv6IfIcmpOutRedirects, # of output redirects */
247 u_quad_t ifs6_out_redirect;
248 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
249 u_quad_t ifs6_out_mldquery;
250 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
251 u_quad_t ifs6_out_mldreport;
252 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
253 u_quad_t ifs6_out_mlddone;
254};
255
256struct in6_ifreq {
257 char ifr_name[IFNAMSIZ];
258 union {
259 struct sockaddr_in6 ifru_addr;
260 struct sockaddr_in6 ifru_dstaddr;
261 short ifru_flags;
262 int ifru_flags6;
263 int ifru_metric;
264 caddr_t ifru_data;
265 struct in6_addrlifetime ifru_lifetime;
266 struct in6_ifstat ifru_stat;
267 struct icmp6_ifstat ifru_icmp6stat;
268 u_int32_t ifru_scope_id[16];
269 } ifr_ifru;
270};
271
272struct in6_aliasreq {
273 char ifra_name[IFNAMSIZ];
274 struct sockaddr_in6 ifra_addr;
275 struct sockaddr_in6 ifra_dstaddr;
276 struct sockaddr_in6 ifra_prefixmask;
277 int ifra_flags;
278 struct in6_addrlifetime ifra_lifetime;
279};
280
281/* prefix type macro */
282#define IN6_PREFIX_ND 1
283#define IN6_PREFIX_RR 2
284
285/*
286 * prefix related flags passed between kernel(NDP related part) and
287 * user land command(ifconfig) and daemon(rtadvd).
288 */
289struct in6_prflags {
290 struct prf_ra {
291 u_char onlink : 1;
292 u_char autonomous : 1;
293 u_char reserved : 6;
294 } prf_ra;
295 u_char prf_reserved1;
296 u_short prf_reserved2;
297 /* want to put this on 4byte offset */
298 struct prf_rr {
299 u_char decrvalid : 1;
300 u_char decrprefd : 1;
301 u_char reserved : 6;
302 } prf_rr;
303 u_char prf_reserved3;
304 u_short prf_reserved4;
305};
306
307struct in6_prefixreq {
308 char ipr_name[IFNAMSIZ];
309 u_char ipr_origin;
310 u_char ipr_plen;
311 u_int32_t ipr_vltime;
312 u_int32_t ipr_pltime;
313 struct in6_prflags ipr_flags;
314 struct sockaddr_in6 ipr_prefix;
315};
316
317#define PR_ORIG_RA 0
318#define PR_ORIG_RR 1
319#define PR_ORIG_STATIC 2
320#define PR_ORIG_KERNEL 3
321
322#define ipr_raf_onlink ipr_flags.prf_ra.onlink
323#define ipr_raf_auto ipr_flags.prf_ra.autonomous
324
325#define ipr_statef_onlink ipr_flags.prf_state.onlink
326
327#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
328#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
329
330struct in6_rrenumreq {
331 char irr_name[IFNAMSIZ];
332 u_char irr_origin;
333 u_char irr_m_len; /* match len for matchprefix */
334 u_char irr_m_minlen; /* minlen for matching prefix */
335 u_char irr_m_maxlen; /* maxlen for matching prefix */
336 u_char irr_u_uselen; /* uselen for adding prefix */
337 u_char irr_u_keeplen; /* keeplen from matching prefix */
338 struct irr_raflagmask {
339 u_char onlink : 1;
340 u_char autonomous : 1;
341 u_char reserved : 6;
342 } irr_raflagmask;
343 u_int32_t irr_vltime;
344 u_int32_t irr_pltime;
345 struct in6_prflags irr_flags;
346 struct sockaddr_in6 irr_matchprefix;
347 struct sockaddr_in6 irr_useprefix;
348};
349
350#define irr_raf_mask_onlink irr_raflagmask.onlink
351#define irr_raf_mask_auto irr_raflagmask.autonomous
352#define irr_raf_mask_reserved irr_raflagmask.reserved
353
354#define irr_raf_onlink irr_flags.prf_ra.onlink
355#define irr_raf_auto irr_flags.prf_ra.autonomous
356
357#define irr_statef_onlink irr_flags.prf_state.onlink
358
359#define irr_rrf irr_flags.prf_rr
360#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
361#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
362
363/*
364 * Given a pointer to an in6_ifaddr (ifaddr),
365 * return a pointer to the addr as a sockaddr_in6
366 */
367#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
368#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
369#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
370#define IA6_SIN6(ia) (&((ia)->ia_addr))
371#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
372#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
373#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
374
375#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
376
377#ifdef _KERNEL
378#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
379 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
380 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
381 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
382 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
383#endif
384
385#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
386#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
387
388#ifdef _KERNEL
389/*
390 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
391 * we do not shift numbers for binary compatibility.
392 */
393#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
394#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
395#endif
396
397#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
398#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
399
400#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
401#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
402
403#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
404#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
405#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
406
407#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
408
409#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
410#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist)
411#ifdef _KERNEL
412#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
413#endif
414#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
415#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
416#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
417#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
418#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
419
420#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
421#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
422#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
423#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
424
425#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
426#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
427
428#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
429
430#define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
431#define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
432#define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
433
434#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
435#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
436#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
437#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
438#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
439 struct in6_rrenumreq) /* change */
440#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
441 struct in6_rrenumreq) /* set global */
442
443#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
444 struct sioc_sg_req6) /* get s,g pkt cnt */
445#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
446 struct sioc_mif_req6) /* get pkt cnt per if */
447
448#define IN6_IFF_ANYCAST 0x01 /* anycast address */
449#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
450#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
451#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
452#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
453#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
454 * (used only at first SIOC* call)
455 */
456#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
457#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
458#define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management.
459 * XXX: this should be temporary.
460 */
461
462/* do not input/output */
463#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
464
465#ifdef _KERNEL
466#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
467#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
468#endif
469
470#ifdef _KERNEL
471extern struct in6_ifaddr *in6_ifaddr;
472
984263bc 473extern struct icmp6stat icmp6stat;
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474#define in6_ifstat_inc(ifp, tag) \
475do { \
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476 if (ifp) \
477 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
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478} while (0)
479
480extern struct ifqueue ip6intrq; /* IP6 packet input queue */
481extern struct in6_addr zeroin6_addr;
482extern u_char inet6ctlerrmap[];
483extern unsigned long in6_maxmtu;
484#ifdef MALLOC_DECLARE
485MALLOC_DECLARE(M_IPMADDR);
486#endif
487
488/*
489 * Macro for finding the internet address structure (in6_ifaddr) corresponding
490 * to a given interface (ifnet structure).
491 */
492
493#define IFP_TO_IA6(ifp, ia) \
494/* struct ifnet *ifp; */ \
495/* struct in6_ifaddr *ia; */ \
496do { \
497 struct ifaddr *ifa; \
ecd80f47 498 TAILQ_FOREACH(ifa, &(ifp)->if_addrhead, ifa_list) { \
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499 if (!ifa->ifa_addr) \
500 continue; \
501 if (ifa->ifa_addr->sa_family == AF_INET6) \
502 break; \
503 } \
504 (ia) = (struct in6_ifaddr *)ifa; \
505} while (0)
506
507#endif /* _KERNEL */
508
509/*
510 * Multi-cast membership entry. One for each group/ifp that a PCB
511 * belongs to.
512 */
513struct in6_multi_mship {
514 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
515 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
516};
517
518struct in6_multi {
519 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
520 struct in6_addr in6m_addr; /* IP6 multicast address */
521 struct ifnet *in6m_ifp; /* back pointer to ifnet */
522 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
523 u_int in6m_refcount; /* # membership claims by sockets */
524 u_int in6m_state; /* state of the membership */
525 u_int in6m_timer; /* MLD6 listener report timer */
526};
527
528#ifdef _KERNEL
529extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
530
531/*
532 * Structure used by macros below to remember position when stepping through
533 * all of the in6_multi records.
534 */
535struct in6_multistep {
536 struct in6_ifaddr *i_ia;
537 struct in6_multi *i_in6m;
538};
539
540/*
541 * Macros for looking up the in6_multi record for a given IP6 multicast
542 * address on a given interface. If no matching record is found, "in6m"
543 * returns NLL.
544 */
545
546#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
547/* struct in6_addr addr; */ \
548/* struct ifnet *ifp; */ \
549/* struct in6_multi *in6m; */ \
550do { \
551 struct ifmultiaddr *ifma; \
552 for (ifma = (ifp)->if_multiaddrs.lh_first; ifma; \
553 ifma = ifma->ifma_link.le_next) { \
554 if (ifma->ifma_addr->sa_family == AF_INET6 \
555 && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \
556 &(addr))) \
557 break; \
558 } \
559 (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \
560} while(0)
561
562/*
563 * Macro to step through all of the in6_multi records, one at a time.
564 * The current position is remembered in "step", which the caller must
565 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
566 * and get the first record. Both macros return a NULL "in6m" when there
567 * are no remaining records.
568 */
569#define IN6_NEXT_MULTI(step, in6m) \
570/* struct in6_multistep step; */ \
571/* struct in6_multi *in6m; */ \
572do { \
573 if (((in6m) = (step).i_in6m) != NULL) \
574 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
575} while(0)
576
577#define IN6_FIRST_MULTI(step, in6m) \
578/* struct in6_multistep step; */ \
579/* struct in6_multi *in6m */ \
580do { \
581 (step).i_in6m = in6_multihead.lh_first; \
582 IN6_NEXT_MULTI((step), (in6m)); \
583} while(0)
584
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585struct in6_multi *in6_addmulti (struct in6_addr *, struct ifnet *,
586 int *);
587void in6_delmulti (struct in6_multi *);
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588struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *);
589int in6_leavegroup(struct in6_multi_mship *);
590
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591extern int in6_ifindex2scopeid (int);
592extern int in6_mask2len (struct in6_addr *, u_char *);
593extern void in6_len2mask (struct in6_addr *, int);
594int in6_control (struct socket *,
595 u_long, caddr_t, struct ifnet *, struct thread *);
596int in6_update_ifa (struct ifnet *, struct in6_aliasreq *,
597 struct in6_ifaddr *);
598void in6_purgeaddr (struct ifaddr *);
599int in6if_do_dad (struct ifnet *);
600void in6_purgeif (struct ifnet *);
601void in6_savemkludge (struct in6_ifaddr *);
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602void *in6_domifattach (struct ifnet *);
603void in6_domifdetach (struct ifnet *, void *);
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604void in6_setmaxmtu (void);
605void in6_restoremkludge (struct in6_ifaddr *, struct ifnet *);
606void in6_purgemkludge (struct ifnet *);
607struct in6_ifaddr *in6ifa_ifpforlinklocal (struct ifnet *, int);
608struct in6_ifaddr *in6ifa_ifpwithaddr (struct ifnet *,
609 struct in6_addr *);
610char *ip6_sprintf (const struct in6_addr *);
611int in6_addr2scopeid (struct ifnet *, struct in6_addr *);
612int in6_matchlen (struct in6_addr *, struct in6_addr *);
613int in6_are_prefix_equal (struct in6_addr *p1, struct in6_addr *p2,
614 int len);
615void in6_prefixlen2mask (struct in6_addr *maskp, int len);
616int in6_prefix_ioctl (struct socket *so, u_long cmd, caddr_t data,
617 struct ifnet *ifp);
618int in6_prefix_add_ifid (int iilen, struct in6_ifaddr *ia);
619void in6_prefix_remove_ifid (int iilen, struct in6_ifaddr *ia);
620void in6_purgeprefix (struct ifnet *);
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621void in6_ifremloop(struct ifaddr *);
622void in6_ifaddloop(struct ifaddr *);
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623
624int in6_is_addr_deprecated (struct sockaddr_in6 *);
984263bc 625struct inpcb;
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626int in6_embedscope (struct in6_addr *, const struct sockaddr_in6 *,
627 struct inpcb *, struct ifnet **);
628int in6_recoverscope (struct sockaddr_in6 *, const struct in6_addr *,
629 struct ifnet *);
630void in6_clearscope (struct in6_addr *);
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631#endif /* _KERNEL */
632
633#endif /* _NETINET6_IN6_VAR_H_ */