Watt-32 tcp/ip  2.2 dev-rel.10
in6_var.h
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1 
5 /* $FreeBSD: src/sys/netinet6/in6_var.h,v 1.10 2002/04/19 04:46:22 suz Exp $ */
6 /* $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $ */
7 
8 /*
9  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
10  * All rights reserved.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  * notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  * notice, this list of conditions and the following disclaimer in the
19  * documentation and/or other materials provided with the distribution.
20  * 3. Neither the name of the project nor the names of its contributors
21  * may be used to endorse or promote products derived from this software
22  * without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  */
36 
37 /*
38  * Copyright (c) 1985, 1986, 1993
39  * The Regents of the University of California. All rights reserved.
40  *
41  * Redistribution and use in source and binary forms, with or without
42  * modification, are permitted provided that the following conditions
43  * are met:
44  * 1. Redistributions of source code must retain the above copyright
45  * notice, this list of conditions and the following disclaimer.
46  * 2. Redistributions in binary form must reproduce the above copyright
47  * notice, this list of conditions and the following disclaimer in the
48  * documentation and/or other materials provided with the distribution.
49  * 3. All advertising materials mentioning features or use of this software
50  * must display the following acknowledgement:
51  * This product includes software developed by the University of
52  * California, Berkeley and its contributors.
53  * 4. Neither the name of the University nor the names of its contributors
54  * may be used to endorse or promote products derived from this software
55  * without specific prior written permission.
56  *
57  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
58  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
59  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
60  * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
61  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
62  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
63  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
64  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
65  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
66  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
67  * SUCH DAMAGE.
68  *
69  * @(#)in_var.h 8.1 (Berkeley) 6/10/93
70  */
71 
72 #ifndef _NETINET6_IN6_VAR_H_
73 #define _NETINET6_IN6_VAR_H_
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  */
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 
97 struct in6_ifaddr {
98  struct ifaddr ia_ifa; /* protocol-independent info */
99 #define ia_ifp ia_ifa.ifa_ifp
100 #define ia_flags ia_ifa.ifa_flags
101  struct sockaddr_in6 ia_addr; /* interface address */
102  struct sockaddr_in6 ia_net; /* network number of interface */
103  struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
104  struct sockaddr_in6 ia_prefixmask; /* prefix mask */
105  u_int32_t ia_plen; /* prefix length */
106  struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
107  int ia6_flags;
108 
109  struct in6_addrlifetime ia6_lifetime;
110  struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */
111 
112  struct nd_prefix *ia6_ndpr; /* back pointer to the ND prefix
113  * (for autoconfigured addresses only)
114  */
115 };
116 
117 /*
118  * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
119  */
120 struct in6_ifstat {
121  u_quad_t ifs6_in_receive; /* # of total input datagram */
122  u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
123  u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
124  u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
125  u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
126  u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
127  /* NOTE: increment on final dst if */
128  u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
129  u_quad_t ifs6_in_discard; /* # of discarded datagrams */
130  /* NOTE: fragment timeout is not here */
131  u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
132  /* NOTE: increment on final dst if */
133  u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
134  /* NOTE: increment on outgoing if */
135  u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
136  /* NOTE: does not include forwrads */
137  u_quad_t ifs6_out_discard; /* # of discarded datagrams */
138  u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
139  u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
140  u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
141  /* NOTE: this is # after fragment */
142  u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
143  /* NOTE: increment on final dst if */
144  u_quad_t ifs6_reass_ok; /* # of reassembled packets */
145  /* NOTE: this is # after reass */
146  /* NOTE: increment on final dst if */
147  u_quad_t ifs6_reass_fail; /* # of reass failures */
148  /* NOTE: may not be packet count */
149  /* NOTE: increment on final dst if */
150  u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
151  u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
152 };
153 
154 /*
155  * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
156  * XXX: I'm not sure if this file is the right place for this structure...
157  */
158 struct icmp6_ifstat {
159  /*
160  * Input statistics
161  */
162  /* ipv6IfIcmpInMsgs, total # of input messages */
163  u_quad_t ifs6_in_msg;
164  /* ipv6IfIcmpInErrors, # of input error messages */
165  u_quad_t ifs6_in_error;
166  /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
167  u_quad_t ifs6_in_dstunreach;
168  /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
169  u_quad_t ifs6_in_adminprohib;
170  /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
171  u_quad_t ifs6_in_timeexceed;
172  /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
173  u_quad_t ifs6_in_paramprob;
174  /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
175  u_quad_t ifs6_in_pkttoobig;
176  /* ipv6IfIcmpInEchos, # of input echo requests */
177  u_quad_t ifs6_in_echo;
178  /* ipv6IfIcmpInEchoReplies, # of input echo replies */
179  u_quad_t ifs6_in_echoreply;
180  /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
181  u_quad_t ifs6_in_routersolicit;
182  /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
183  u_quad_t ifs6_in_routeradvert;
184  /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
185  u_quad_t ifs6_in_neighborsolicit;
186  /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
187  u_quad_t ifs6_in_neighboradvert;
188  /* ipv6IfIcmpInRedirects, # of input redirects */
189  u_quad_t ifs6_in_redirect;
190  /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
191  u_quad_t ifs6_in_mldquery;
192  /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
193  u_quad_t ifs6_in_mldreport;
194  /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
195  u_quad_t ifs6_in_mlddone;
196 
197  /*
198  * Output statistics. We should solve unresolved routing problem...
199  */
200  /* ipv6IfIcmpOutMsgs, total # of output messages */
201  u_quad_t ifs6_out_msg;
202  /* ipv6IfIcmpOutErrors, # of output error messages */
203  u_quad_t ifs6_out_error;
204  /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
205  u_quad_t ifs6_out_dstunreach;
206  /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
207  u_quad_t ifs6_out_adminprohib;
208  /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
209  u_quad_t ifs6_out_timeexceed;
210  /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
211  u_quad_t ifs6_out_paramprob;
212  /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
213  u_quad_t ifs6_out_pkttoobig;
214  /* ipv6IfIcmpOutEchos, # of output echo requests */
215  u_quad_t ifs6_out_echo;
216  /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
217  u_quad_t ifs6_out_echoreply;
218  /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
219  u_quad_t ifs6_out_routersolicit;
220  /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
221  u_quad_t ifs6_out_routeradvert;
222  /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
223  u_quad_t ifs6_out_neighborsolicit;
224  /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
225  u_quad_t ifs6_out_neighboradvert;
226  /* ipv6IfIcmpOutRedirects, # of output redirects */
227  u_quad_t ifs6_out_redirect;
228  /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
229  u_quad_t ifs6_out_mldquery;
230  /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
231  u_quad_t ifs6_out_mldreport;
232  /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
233  u_quad_t ifs6_out_mlddone;
234 };
235 
236 struct in6_ifreq {
237  char ifr_name[IFNAMSIZ];
238  union {
239  struct sockaddr_in6 ifru_addr;
240  struct sockaddr_in6 ifru_dstaddr;
241  short ifru_flags;
242  int ifru_flags6;
243  int ifru_metric;
244  caddr_t ifru_data;
245  struct in6_addrlifetime ifru_lifetime;
246  struct in6_ifstat ifru_stat;
247  struct icmp6_ifstat ifru_icmp6stat;
248  u_int32_t ifru_scope_id[16];
249  } ifr_ifru;
250 };
251 
252 struct in6_aliasreq {
253  char ifra_name[IFNAMSIZ];
254  struct sockaddr_in6 ifra_addr;
255  struct sockaddr_in6 ifra_dstaddr;
256  struct sockaddr_in6 ifra_prefixmask;
257  int ifra_flags;
258  struct in6_addrlifetime ifra_lifetime;
259 };
260 
261 /* prefix type macro */
262 #define IN6_PREFIX_ND 1
263 #define IN6_PREFIX_RR 2
264 
265 /*
266  * prefix related flags passed between kernel(NDP related part) and
267  * user land command(ifconfig) and daemon(rtadvd).
268  */
269 struct in6_prflags {
270  struct prf_ra {
271  u_char onlink : 1;
272  u_char autonomous : 1;
273  u_char reserved : 6;
274  } prf_ra;
275  u_char prf_reserved1;
276  u_short prf_reserved2;
277  /* want to put this on 4byte offset */
278  struct prf_rr {
279  u_char decrvalid : 1;
280  u_char decrprefd : 1;
281  u_char reserved : 6;
282  } prf_rr;
283  u_char prf_reserved3;
284  u_short prf_reserved4;
285 };
286 
288  char ipr_name[IFNAMSIZ];
289  u_char ipr_origin;
290  u_char ipr_plen;
291  u_int32_t ipr_vltime;
292  u_int32_t ipr_pltime;
293  struct in6_prflags ipr_flags;
294  struct sockaddr_in6 ipr_prefix;
295 };
296 
297 #define PR_ORIG_RA 0
298 #define PR_ORIG_RR 1
299 #define PR_ORIG_STATIC 2
300 #define PR_ORIG_KERNEL 3
301 
302 #define ipr_raf_onlink ipr_flags.prf_ra.onlink
303 #define ipr_raf_auto ipr_flags.prf_ra.autonomous
304 
305 #define ipr_statef_onlink ipr_flags.prf_state.onlink
306 
307 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
308 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
309 
311  char irr_name[IFNAMSIZ];
312  u_char irr_origin;
313  u_char irr_m_len; /* match len for matchprefix */
314  u_char irr_m_minlen; /* minlen for matching prefix */
315  u_char irr_m_maxlen; /* maxlen for matching prefix */
316  u_char irr_u_uselen; /* uselen for adding prefix */
317  u_char irr_u_keeplen; /* keeplen from matching prefix */
318  struct irr_raflagmask {
319  u_char onlink : 1;
320  u_char autonomous : 1;
321  u_char reserved : 6;
322  } irr_raflagmask;
323  u_int32_t irr_vltime;
324  u_int32_t irr_pltime;
325  struct in6_prflags irr_flags;
326  struct sockaddr_in6 irr_matchprefix;
327  struct sockaddr_in6 irr_useprefix;
328 };
329 
330 #define irr_raf_mask_onlink irr_raflagmask.onlink
331 #define irr_raf_mask_auto irr_raflagmask.autonomous
332 #define irr_raf_mask_reserved irr_raflagmask.reserved
333 
334 #define irr_raf_onlink irr_flags.prf_ra.onlink
335 #define irr_raf_auto irr_flags.prf_ra.autonomous
336 
337 #define irr_statef_onlink irr_flags.prf_state.onlink
338 
339 #define irr_rrf irr_flags.prf_rr
340 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
341 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
342 
343 /*
344  * Given a pointer to an in6_ifaddr (ifaddr),
345  * return a pointer to the addr as a sockaddr_in6
346  */
347 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
348 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
349 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
350 #define IA6_SIN6(ia) (&((ia)->ia_addr))
351 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
352 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
353 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
354 
355 #define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
356 
357 #ifdef _KERNEL
358 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
359  (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
360  (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
361  (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
362  (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
363 #endif
364 
365 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
366 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
367 
368 #ifdef _KERNEL
369 /*
370  * SIOCSxxx ioctls should be unused (see comments in in6.c), but
371  * we do not shift numbers for binary compatibility.
372  */
373 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
374 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
375 #endif
376 
377 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
378 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
379 
380 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
381 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
382 
383 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
384 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
385 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
386 
387 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
388 
389 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
390 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist)
391 #ifdef _KERNEL
392 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
393 #endif
394 #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
395 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
396 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
397 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
398 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
399 
400 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
401 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
402 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
403 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
404 
405 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
406 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
407 
408 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
409 
410 #define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
411 #define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
412 #define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
413 
414 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
415 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
416 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
417 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
418 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
419  struct in6_rrenumreq) /* change */
420 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
421  struct in6_rrenumreq) /* set global */
422 
423 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
424  struct sioc_sg_req6) /* get s,g pkt cnt */
425 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
426  struct sioc_mif_req6) /* get pkt cnt per if */
427 
428 #define IN6_IFF_ANYCAST 0x01 /* anycast address */
429 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */
430 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
431 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
432 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
433 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
434  * (used only at first SIOC* call)
435  */
436 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
437 #define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
438 #define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management.
439  * XXX: this should be temporary.
440  */
441 
442 /* do not input/output */
443 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
444 
445 #ifdef _KERNEL
446 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
447 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
448 #endif
449 
450 #ifdef _KERNEL
451 extern struct in6_ifaddr *in6_ifaddr;
452 
453 extern struct in6_ifstat **in6_ifstat;
454 extern size_t in6_ifstatmax;
455 extern struct icmp6stat icmp6stat;
456 extern struct icmp6_ifstat **icmp6_ifstat;
457 extern size_t icmp6_ifstatmax;
458 #define in6_ifstat_inc(ifp, tag) \
459 do { \
460  if ((ifp) && (ifp)->if_index <= if_index \
461  && (ifp)->if_index < in6_ifstatmax \
462  && in6_ifstat && in6_ifstat[(ifp)->if_index]) { \
463  in6_ifstat[(ifp)->if_index]->tag++; \
464  } \
465 } while (0)
466 
467 extern struct ifqueue ip6intrq; /* IP6 packet input queue */
468 extern struct in6_addr zeroin6_addr;
469 extern u_char inet6ctlerrmap[];
470 extern unsigned long in6_maxmtu;
471 #ifdef MALLOC_DECLARE
472 MALLOC_DECLARE(M_IPMADDR);
473 #endif
474 
475 /*
476  * Macro for finding the internet address structure (in6_ifaddr) corresponding
477  * to a given interface (ifnet structure).
478  */
479 
480 #define IFP_TO_IA6(ifp, ia) \
481 /* struct ifnet *ifp; */ \
482 /* struct in6_ifaddr *ia; */ \
483 do { \
484  struct ifaddr *ifa; \
485  for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \
486  if (!ifa->ifa_addr) \
487  continue; \
488  if (ifa->ifa_addr->sa_family == AF_INET6) \
489  break; \
490  } \
491  (ia) = (struct in6_ifaddr *)ifa; \
492 } while (0)
493 
494 #endif /* _KERNEL */
495 
496 /*
497  * Multi-cast membership entry. One for each group/ifp that a PCB
498  * belongs to.
499  */
501  struct in6_multi *i6mm_maddr; /* Multicast address pointer */
502  LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
503 };
504 
505 struct in6_multi {
506  LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
507  struct in6_addr in6m_addr; /* IP6 multicast address */
508  struct ifnet *in6m_ifp; /* back pointer to ifnet */
509  struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
510  u_int in6m_refcount; /* # membership claims by sockets */
511  u_int in6m_state; /* state of the membership */
512  u_int in6m_timer; /* MLD6 listener report timer */
513 };
514 
515 #ifdef _KERNEL
516 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
517 
518 /*
519  * Structure used by macros below to remember position when stepping through
520  * all of the in6_multi records.
521  */
523  struct in6_ifaddr *i_ia;
524  struct in6_multi *i_in6m;
525 };
526 
527 /*
528  * Macros for looking up the in6_multi record for a given IP6 multicast
529  * address on a given interface. If no matching record is found, "in6m"
530  * returns NLL.
531  */
532 
533 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
534 /* struct in6_addr addr; */ \
535 /* struct ifnet *ifp; */ \
536 /* struct in6_multi *in6m; */ \
537 do { \
538  struct ifmultiaddr *ifma; \
539  TAILQ_FOREACH(ifma, &(ifp)->if_multiaddrs, ifma_link) { \
540  if (ifma->ifma_addr->sa_family == AF_INET6 \
541  && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \
542  &(addr))) \
543  break; \
544  } \
545  (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \
546 } while(0)
547 
548 /*
549  * Macro to step through all of the in6_multi records, one at a time.
550  * The current position is remembered in "step", which the caller must
551  * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
552  * and get the first record. Both macros return a NULL "in6m" when there
553  * are no remaining records.
554  */
555 #define IN6_NEXT_MULTI(step, in6m) \
556 /* struct in6_multistep step; */ \
557 /* struct in6_multi *in6m; */ \
558 do { \
559  if (((in6m) = (step).i_in6m) != NULL) \
560  (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
561 } while(0)
562 
563 #define IN6_FIRST_MULTI(step, in6m) \
564 /* struct in6_multistep step; */ \
565 /* struct in6_multi *in6m */ \
566 do { \
567  (step).i_in6m = in6_multihead.lh_first; \
568  IN6_NEXT_MULTI((step), (in6m)); \
569 } while(0)
570 
571 struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *,
572  int *));
573 void in6_delmulti __P((struct in6_multi *));
574 extern int in6_ifindex2scopeid __P((int));
575 extern int in6_mask2len __P((struct in6_addr *, u_char *));
576 extern void in6_len2mask __P((struct in6_addr *, int));
577 int in6_control __P((struct socket *,
578  u_long, caddr_t, struct ifnet *, struct thread *));
579 int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *,
580  struct in6_ifaddr *));
581 void in6_purgeaddr __P((struct ifaddr *));
582 int in6if_do_dad __P((struct ifnet *));
583 void in6_purgeif __P((struct ifnet *));
584 void in6_savemkludge __P((struct in6_ifaddr *));
585 void in6_setmaxmtu __P((void));
586 void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *));
587 void in6_purgemkludge __P((struct ifnet *));
588 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int));
589 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *,
590  struct in6_addr *));
591 char *ip6_sprintf __P((const struct in6_addr *));
592 int in6_addr2scopeid __P((struct ifnet *, struct in6_addr *));
593 int in6_matchlen __P((struct in6_addr *, struct in6_addr *));
594 int in6_are_prefix_equal __P((struct in6_addr *p1, struct in6_addr *p2,
595  int len));
596 void in6_prefixlen2mask __P((struct in6_addr *maskp, int len));
597 int in6_prefix_ioctl __P((struct socket *so, u_long cmd, caddr_t data,
598  struct ifnet *ifp));
599 int in6_prefix_add_ifid __P((int iilen, struct in6_ifaddr *ia));
600 void in6_prefix_remove_ifid __P((int iilen, struct in6_ifaddr *ia));
601 void in6_purgeprefix __P((struct ifnet *));
602 
603 int in6_is_addr_deprecated __P((struct sockaddr_in6 *));
604 struct inpcb;
605 int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *,
606  struct inpcb *, struct ifnet **));
607 int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *,
608  struct ifnet *));
609 void in6_clearscope __P((struct in6_addr *));
610 #endif /* _KERNEL */
611 
612 #endif /* _NETINET6_IN6_VAR_H_ */
Definition: if.h:84
Definition: in_pcb.h:61
Definition: in.h:153
Definition: if.h:130
Definition: if.h:249
Definition: ipv6.h:75
Definition: nd6.h:222