Annotation of sys/netinet6/in6_var.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: in6_var.h,v 1.28 2006/07/06 02:56:58 brad Exp $ */
2: /* $KAME: in6_var.h,v 1.55 2001/02/16 12:49:45 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: /*
68: * Interface address, Internet version. One of these structures
69: * is allocated for each interface with an Internet address.
70: * The ifaddr structure contains the protocol-independent part
71: * of the structure and is assumed to be first.
72: */
73:
74: /*
75: * pltime/vltime are just for future reference (required to implements 2
76: * hour rule for hosts). they should never be modified by nd6_timeout or
77: * anywhere else.
78: * userland -> kernel: accept pltime/vltime
79: * kernel -> userland: throw up everything
80: * in kernel: modify preferred/expire only
81: */
82: struct in6_addrlifetime {
83: time_t ia6t_expire; /* valid lifetime expiration time */
84: time_t ia6t_preferred; /* preferred lifetime expiration time */
85: u_int32_t ia6t_vltime; /* valid lifetime */
86: u_int32_t ia6t_pltime; /* prefix lifetime */
87: };
88:
89: struct nd_ifinfo;
90: struct in6_ifextra {
91: struct in6_ifstat *in6_ifstat;
92: struct icmp6_ifstat *icmp6_ifstat;
93: struct nd_ifinfo *nd_ifinfo;
94: };
95:
96: struct in6_ifaddr {
97: struct ifaddr ia_ifa; /* protocol-independent info */
98: #define ia_ifp ia_ifa.ifa_ifp
99: #define ia_flags ia_ifa.ifa_flags
100: struct sockaddr_in6 ia_addr; /* interface address */
101: struct sockaddr_in6 ia_net; /* network number of interface */
102: struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
103: struct sockaddr_in6 ia_prefixmask; /* prefix mask */
104: u_int32_t ia_plen; /* prefix length */
105: struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
106: LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs;
107: /* list of multicast addresses */
108: int ia6_flags;
109:
110: struct in6_addrlifetime ia6_lifetime;
111: time_t ia6_createtime; /* the creation time of this address, which is
112: * currently used for temporary addresses only.
113: */
114: time_t ia6_updatetime;
115:
116: /* back pointer to the ND prefix (for autoconfigured addresses only) */
117: struct nd_prefix *ia6_ndpr;
118:
119: /* multicast addresses joined from the kernel */
120: LIST_HEAD(, in6_multi_mship) ia6_memberships;
121: };
122:
123: /*
124: * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
125: */
126: struct in6_ifstat {
127: u_int64_t ifs6_in_receive; /* # of total input datagram */
128: u_int64_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
129: u_int64_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
130: u_int64_t ifs6_in_noroute; /* # of datagrams with no route */
131: u_int64_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
132: u_int64_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
133: /* NOTE: increment on final dst if */
134: u_int64_t ifs6_in_truncated; /* # of truncated datagrams */
135: u_int64_t ifs6_in_discard; /* # of discarded datagrams */
136: /* NOTE: fragment timeout is not here */
137: u_int64_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
138: /* NOTE: increment on final dst if */
139: u_int64_t ifs6_out_forward; /* # of datagrams forwarded */
140: /* NOTE: increment on outgoing if */
141: u_int64_t ifs6_out_request; /* # of outgoing datagrams from ULP */
142: /* NOTE: does not include forwrads */
143: u_int64_t ifs6_out_discard; /* # of discarded datagrams */
144: u_int64_t ifs6_out_fragok; /* # of datagrams fragmented */
145: u_int64_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
146: u_int64_t ifs6_out_fragcreat; /* # of fragment datagrams */
147: /* NOTE: this is # after fragment */
148: u_int64_t ifs6_reass_reqd; /* # of incoming fragmented packets */
149: /* NOTE: increment on final dst if */
150: u_int64_t ifs6_reass_ok; /* # of reassembled packets */
151: /* NOTE: this is # after reass */
152: /* NOTE: increment on final dst if */
153: u_int64_t ifs6_reass_fail; /* # of reass failures */
154: /* NOTE: may not be packet count */
155: /* NOTE: increment on final dst if */
156: u_int64_t ifs6_in_mcast; /* # of inbound multicast datagrams */
157: u_int64_t ifs6_out_mcast; /* # of outbound multicast datagrams */
158: };
159:
160: /*
161: * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
162: * XXX: I'm not sure if this file is the right place for this structure...
163: */
164: struct icmp6_ifstat {
165: /*
166: * Input statistics
167: */
168: /* ipv6IfIcmpInMsgs, total # of input messages */
169: u_int64_t ifs6_in_msg;
170: /* ipv6IfIcmpInErrors, # of input error messages */
171: u_int64_t ifs6_in_error;
172: /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
173: u_int64_t ifs6_in_dstunreach;
174: /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
175: u_int64_t ifs6_in_adminprohib;
176: /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
177: u_int64_t ifs6_in_timeexceed;
178: /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
179: u_int64_t ifs6_in_paramprob;
180: /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
181: u_int64_t ifs6_in_pkttoobig;
182: /* ipv6IfIcmpInEchos, # of input echo requests */
183: u_int64_t ifs6_in_echo;
184: /* ipv6IfIcmpInEchoReplies, # of input echo replies */
185: u_int64_t ifs6_in_echoreply;
186: /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
187: u_int64_t ifs6_in_routersolicit;
188: /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
189: u_int64_t ifs6_in_routeradvert;
190: /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
191: u_int64_t ifs6_in_neighborsolicit;
192: /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
193: u_int64_t ifs6_in_neighboradvert;
194: /* ipv6IfIcmpInRedirects, # of input redirects */
195: u_int64_t ifs6_in_redirect;
196: /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
197: u_int64_t ifs6_in_mldquery;
198: /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
199: u_int64_t ifs6_in_mldreport;
200: /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
201: u_int64_t ifs6_in_mlddone;
202:
203: /*
204: * Output statistics. We should solve unresolved routing problem...
205: */
206: /* ipv6IfIcmpOutMsgs, total # of output messages */
207: u_int64_t ifs6_out_msg;
208: /* ipv6IfIcmpOutErrors, # of output error messages */
209: u_int64_t ifs6_out_error;
210: /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
211: u_int64_t ifs6_out_dstunreach;
212: /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
213: u_int64_t ifs6_out_adminprohib;
214: /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
215: u_int64_t ifs6_out_timeexceed;
216: /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
217: u_int64_t ifs6_out_paramprob;
218: /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
219: u_int64_t ifs6_out_pkttoobig;
220: /* ipv6IfIcmpOutEchos, # of output echo requests */
221: u_int64_t ifs6_out_echo;
222: /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
223: u_int64_t ifs6_out_echoreply;
224: /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
225: u_int64_t ifs6_out_routersolicit;
226: /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
227: u_int64_t ifs6_out_routeradvert;
228: /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
229: u_int64_t ifs6_out_neighborsolicit;
230: /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
231: u_int64_t ifs6_out_neighboradvert;
232: /* ipv6IfIcmpOutRedirects, # of output redirects */
233: u_int64_t ifs6_out_redirect;
234: /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
235: u_int64_t ifs6_out_mldquery;
236: /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
237: u_int64_t ifs6_out_mldreport;
238: /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
239: u_int64_t ifs6_out_mlddone;
240: };
241:
242: struct in6_ifreq {
243: char ifr_name[IFNAMSIZ];
244: union {
245: struct sockaddr_in6 ifru_addr;
246: struct sockaddr_in6 ifru_dstaddr;
247: short ifru_flags;
248: int ifru_flags6;
249: int ifru_metric;
250: caddr_t ifru_data;
251: struct in6_addrlifetime ifru_lifetime;
252: struct in6_ifstat ifru_stat;
253: struct icmp6_ifstat ifru_icmp6stat;
254: } ifr_ifru;
255: };
256:
257: struct in6_aliasreq {
258: char ifra_name[IFNAMSIZ];
259: struct sockaddr_in6 ifra_addr;
260: struct sockaddr_in6 ifra_dstaddr;
261: struct sockaddr_in6 ifra_prefixmask;
262: int ifra_flags;
263: struct in6_addrlifetime ifra_lifetime;
264: };
265:
266: /* prefix type macro */
267: #define IN6_PREFIX_ND 1
268: #define IN6_PREFIX_RR 2
269:
270: /*
271: * prefix related flags passed between kernel(NDP related part) and
272: * user land command(ifconfig) and daemon(rtadvd).
273: */
274: struct prf_ra {
275: u_int onlink : 1;
276: u_int autonomous : 1;
277: u_int router : 1;
278: u_int reserved : 5;
279: };
280:
281: struct in6_prflags {
282: struct prf_ra prf_ra;
283: u_char prf_reserved1;
284: u_short prf_reserved2;
285: /* want to put this on 4byte offset */
286: struct prf_rr {
287: u_int decrvalid : 1;
288: u_int decrprefd : 1;
289: u_int reserved : 6;
290: } prf_rr;
291: u_char prf_reserved3;
292: u_short prf_reserved4;
293: };
294:
295: struct in6_prefixreq {
296: char ipr_name[IFNAMSIZ];
297: u_char ipr_origin;
298: u_char ipr_plen;
299: u_int32_t ipr_vltime;
300: u_int32_t ipr_pltime;
301: struct in6_prflags ipr_flags;
302: struct sockaddr_in6 ipr_prefix;
303: };
304:
305: #define PR_ORIG_RA 0
306: #define PR_ORIG_RR 1
307: #define PR_ORIG_STATIC 2
308: #define PR_ORIG_KERNEL 3
309:
310: #define ipr_raf_onlink ipr_flags.prf_ra.onlink
311: #define ipr_raf_auto ipr_flags.prf_ra.autonomous
312:
313: #define ipr_statef_onlink ipr_flags.prf_state.onlink
314:
315: #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
316: #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
317:
318: struct in6_rrenumreq {
319: char irr_name[IFNAMSIZ];
320: u_char irr_origin;
321: u_char irr_m_len; /* match len for matchprefix */
322: u_char irr_m_minlen; /* minlen for matching prefix */
323: u_char irr_m_maxlen; /* maxlen for matching prefix */
324: u_char irr_u_uselen; /* uselen for adding prefix */
325: u_char irr_u_keeplen; /* keeplen from matching prefix */
326: struct irr_raflagmask {
327: u_int onlink : 1;
328: u_int autonomous : 1;
329: u_int reserved : 6;
330: } irr_raflagmask;
331: u_int32_t irr_vltime;
332: u_int32_t irr_pltime;
333: struct in6_prflags irr_flags;
334: struct sockaddr_in6 irr_matchprefix;
335: struct sockaddr_in6 irr_useprefix;
336: };
337:
338: #define irr_raf_mask_onlink irr_raflagmask.onlink
339: #define irr_raf_mask_auto irr_raflagmask.autonomous
340: #define irr_raf_mask_reserved irr_raflagmask.reserved
341:
342: #define irr_raf_onlink irr_flags.prf_ra.onlink
343: #define irr_raf_auto irr_flags.prf_ra.autonomous
344:
345: #define irr_statef_onlink irr_flags.prf_state.onlink
346:
347: #define irr_rrf irr_flags.prf_rr
348: #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
349: #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
350:
351: /*
352: * Given a pointer to an in6_ifaddr (ifaddr),
353: * return a pointer to the addr as a sockaddr_in6
354: */
355: #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
356: #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
357: #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
358: #define IA6_SIN6(ia) (&((ia)->ia_addr))
359: #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
360: #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
361: #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
362:
363: #ifdef _KERNEL
364: #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
365: (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
366: (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
367: (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
368: (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
369: #endif
370:
371: #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
372: #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
373:
374: #ifdef _KERNEL
375: /*
376: * SIOCSxxx ioctls should be unused (see comments in in6.c), but
377: * we do not shift numbers for binary compatibility.
378: */
379: #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
380: #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
381: #endif
382:
383: #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
384: #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
385:
386: #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
387: #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
388:
389: #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
390: #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
391: #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
392:
393: #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
394:
395: #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
396: #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist)
397: #ifdef _KERNEL
398: #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
399: #endif
400: #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
401: #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
402: #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
403: #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
404: #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
405:
406: #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
407: #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
408: #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
409: #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
410:
411: #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
412: #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
413:
414: #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
415:
416: #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
417: #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
418: #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
419: #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
420: #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
421: struct in6_rrenumreq) /* change */
422: #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
423: struct in6_rrenumreq) /* set global */
424:
425: #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
426: struct sioc_sg_req6) /* get s,g pkt cnt */
427: #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
428: struct sioc_mif_req6) /* get pkt cnt per if */
429:
430: #define IN6_IFF_ANYCAST 0x01 /* anycast address */
431: #define IN6_IFF_TENTATIVE 0x02 /* tentative address */
432: #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
433: #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
434: #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
435: #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
436: * (used only at first SIOC* call)
437: */
438: #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
439:
440: /* do not input/output */
441: #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
442:
443: #ifdef _KERNEL
444: #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
445: #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
446: #endif
447:
448: #ifdef _KERNEL
449: extern struct in6_ifaddr *in6_ifaddr;
450:
451: extern struct icmp6stat icmp6stat;
452: #define in6_ifstat_inc(ifp, tag) \
453: do { \
454: if (ifp) \
455: ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
456: } while (0)
457:
458: extern struct ifqueue ip6intrq; /* IP6 packet input queue */
459: extern struct in6_addr zeroin6_addr;
460: extern u_char inet6ctlerrmap[];
461: extern unsigned long in6_maxmtu;
462:
463: /*
464: * Macro for finding the internet address structure (in6_ifaddr) corresponding
465: * to a given interface (ifnet structure).
466: */
467: #define IFP_TO_IA6(ifp, ia) \
468: /* struct ifnet *ifp; */ \
469: /* struct in6_ifaddr *ia; */ \
470: do { \
471: struct ifaddr *ifa; \
472: TAILQ_FOREACH(ifa, &(ifp)->if_addrlist, ifa_list) { \
473: if (!ifa->ifa_addr) \
474: continue; \
475: if (ifa->ifa_addr->sa_family == AF_INET6) \
476: break; \
477: } \
478: (ia) = (struct in6_ifaddr *)ifa; \
479: } while (0)
480: #endif /* _KERNEL */
481:
482: /*
483: * Multi-cast membership entry. One for each group/ifp that a PCB
484: * belongs to.
485: */
486: struct in6_multi_mship {
487: struct in6_multi *i6mm_maddr; /* Multicast address pointer */
488: LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
489: };
490:
491: struct in6_multi {
492: LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
493: struct in6_addr in6m_addr; /* IP6 multicast address */
494: struct ifnet *in6m_ifp; /* back pointer to ifnet */
495: struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */
496: u_int in6m_refcount; /* # membership claims by sockets */
497: u_int in6m_state; /* state of the membership */
498: u_int in6m_timer; /* MLD6 listener report timer */
499: };
500:
501: #ifdef _KERNEL
502: /*
503: * Structure used by macros below to remember position when stepping through
504: * all of the in6_multi records.
505: */
506: struct in6_multistep {
507: struct in6_ifaddr *i_ia;
508: struct in6_multi *i_in6m;
509: };
510:
511: /*
512: * Macros for looking up the in6_multi record for a given IP6 multicast
513: * address on a given interface. If no matching record is found, "in6m"
514: * returns NLL.
515: */
516:
517: #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
518: /* struct in6_addr addr; */ \
519: /* struct ifnet *ifp; */ \
520: /* struct in6_multi *in6m; */ \
521: do { \
522: struct in6_ifaddr *ia; \
523: \
524: IFP_TO_IA6((ifp), ia); \
525: if (ia == NULL) \
526: (in6m) = NULL; \
527: else \
528: for ((in6m) = LIST_FIRST(&ia->ia6_multiaddrs); \
529: (in6m) != LIST_END(&ia->ia6_multiaddrs) && \
530: !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \
531: (in6m) = LIST_NEXT((in6m), in6m_entry)) \
532: continue; \
533: } while (0)
534:
535: /*
536: * Macro to step through all of the in6_multi records, one at a time.
537: * The current position is remembered in "step", which the caller must
538: * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
539: * and get the first record. Both macros return a NULL "in6m" when there
540: * are no remaining records.
541: */
542: #define IN6_NEXT_MULTI(step, in6m) \
543: /* struct in6_multistep step; */ \
544: /* struct in6_multi *in6m; */ \
545: do { \
546: if (((in6m) = (step).i_in6m) != NULL) \
547: (step).i_in6m = LIST_NEXT((in6m), in6m_entry); \
548: else \
549: while ((step).i_ia != NULL) { \
550: (in6m) = LIST_FIRST(&(step).i_ia->ia6_multiaddrs); \
551: (step).i_ia = (step).i_ia->ia_next; \
552: if ((in6m) != NULL) { \
553: (step).i_in6m = LIST_NEXT((in6m), in6m_entry); \
554: break; \
555: } \
556: } \
557: } while (0)
558:
559: #define IN6_FIRST_MULTI(step, in6m) \
560: /* struct in6_multistep step; */ \
561: /* struct in6_multi *in6m */ \
562: do { \
563: (step).i_ia = in6_ifaddr; \
564: (step).i_in6m = NULL; \
565: IN6_NEXT_MULTI((step), (in6m)); \
566: } while (0)
567:
568: struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, int *);
569: void in6_delmulti(struct in6_multi *);
570: struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *);
571: int in6_leavegroup(struct in6_multi_mship *);
572: int in6_mask2len(struct in6_addr *, u_char *);
573: int in6_control(struct socket *, u_long, caddr_t, struct ifnet *,
574: struct proc *);
575: int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
576: struct in6_ifaddr *);
577: void in6_purgeaddr(struct ifaddr *);
578: int in6if_do_dad(struct ifnet *);
579: void in6_purgeif(struct ifnet *);
580: void in6_savemkludge(struct in6_ifaddr *);
581: void in6_setmaxmtu(void);
582: void *in6_domifattach(struct ifnet *);
583: void in6_domifdetach(struct ifnet *, void *);
584: void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *);
585: void in6_createmkludge(struct ifnet *);
586: void in6_purgemkludge(struct ifnet *);
587: struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int);
588: struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, struct in6_addr *);
589: char *ip6_sprintf(struct in6_addr *);
590: int in6_addr2scopeid(struct ifnet *, struct in6_addr *);
591: int in6_matchlen(struct in6_addr *, struct in6_addr *);
592: int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int);
593: void in6_prefixlen2mask(struct in6_addr *, int);
594: void in6_purgeprefix(struct ifnet *);
595: void in6_ifaddloop(struct ifaddr *);
596: void in6_ifremloop(struct ifaddr *);
597:
598: int in6_is_addr_deprecated(struct sockaddr_in6 *);
599: struct inpcb;
600: int in6_embedscope(struct in6_addr *, const struct sockaddr_in6 *,
601: struct inpcb *, struct ifnet **);
602: int in6_recoverscope(struct sockaddr_in6 *, const struct in6_addr *,
603: struct ifnet *);
604: void in6_clearscope(struct in6_addr *);
605: #endif /* _KERNEL */
606:
607: #endif /* _NETINET6_IN6_VAR_H_ */
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