1 /* $FreeBSD: src/sys/netinet6/in6_var.h,v 1.3.2.3 2002/04/28 05:40:27 suz Exp $ */
2 /* $DragonFly: src/sys/netinet6/in6_var.h,v 1.6 2005/02/01 16:09:37 hrs Exp $ */
3 /* $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $ */
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66 * @(#)in_var.h 8.1 (Berkeley) 6/10/93
69 #ifndef _NETINET6_IN6_VAR_H_
70 #define _NETINET6_IN6_VAR_H_
73 * Interface address, Internet version. One of these structures
74 * is allocated for each interface with an Internet address.
75 * The ifaddr structure contains the protocol-independent part
76 * of the structure and is assumed to be first.
80 * pltime/vltime are just for future reference (required to implements 2
81 * hour rule for hosts). they should never be modified by nd6_timeout or
83 * userland -> kernel: accept pltime/vltime
84 * kernel -> userland: throw up everything
85 * in kernel: modify preferred/expire only
87 struct in6_addrlifetime {
88 time_t ia6t_expire; /* valid lifetime expiration time */
89 time_t ia6t_preferred; /* preferred lifetime expiration time */
90 u_int32_t ia6t_vltime; /* valid lifetime */
91 u_int32_t ia6t_pltime; /* prefix lifetime */
97 struct in6_ifstat *in6_ifstat;
98 struct icmp6_ifstat *icmp6_ifstat;
99 struct nd_ifinfo *nd_ifinfo;
100 struct scope6_id *scope6_id;
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 */
115 struct in6_addrlifetime ia6_lifetime;
116 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */
118 struct nd_prefix *ia6_ndpr; /* back pointer to the ND prefix
119 * (for autoconfigured addresses only)
124 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
127 u_quad_t ifs6_in_receive; /* # of total input datagram */
128 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
129 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
130 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
131 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
132 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
133 /* NOTE: increment on final dst if */
134 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
135 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
136 /* NOTE: fragment timeout is not here */
137 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
138 /* NOTE: increment on final dst if */
139 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
140 /* NOTE: increment on outgoing if */
141 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
142 /* NOTE: does not include forwrads */
143 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
144 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
145 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
146 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
147 /* NOTE: this is # after fragment */
148 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
149 /* NOTE: increment on final dst if */
150 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
151 /* NOTE: this is # after reass */
152 /* NOTE: increment on final dst if */
153 u_quad_t ifs6_reass_fail; /* # of reass failures */
154 /* NOTE: may not be packet count */
155 /* NOTE: increment on final dst if */
156 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
157 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
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...
164 struct icmp6_ifstat {
168 /* ipv6IfIcmpInMsgs, total # of input messages */
169 u_quad_t ifs6_in_msg;
170 /* ipv6IfIcmpInErrors, # of input error messages */
171 u_quad_t ifs6_in_error;
172 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
173 u_quad_t ifs6_in_dstunreach;
174 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
175 u_quad_t ifs6_in_adminprohib;
176 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
177 u_quad_t ifs6_in_timeexceed;
178 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
179 u_quad_t ifs6_in_paramprob;
180 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
181 u_quad_t ifs6_in_pkttoobig;
182 /* ipv6IfIcmpInEchos, # of input echo requests */
183 u_quad_t ifs6_in_echo;
184 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
185 u_quad_t ifs6_in_echoreply;
186 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
187 u_quad_t ifs6_in_routersolicit;
188 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
189 u_quad_t ifs6_in_routeradvert;
190 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
191 u_quad_t ifs6_in_neighborsolicit;
192 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
193 u_quad_t ifs6_in_neighboradvert;
194 /* ipv6IfIcmpInRedirects, # of input redirects */
195 u_quad_t ifs6_in_redirect;
196 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
197 u_quad_t ifs6_in_mldquery;
198 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
199 u_quad_t ifs6_in_mldreport;
200 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
201 u_quad_t ifs6_in_mlddone;
204 * Output statistics. We should solve unresolved routing problem...
206 /* ipv6IfIcmpOutMsgs, total # of output messages */
207 u_quad_t ifs6_out_msg;
208 /* ipv6IfIcmpOutErrors, # of output error messages */
209 u_quad_t ifs6_out_error;
210 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
211 u_quad_t ifs6_out_dstunreach;
212 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
213 u_quad_t ifs6_out_adminprohib;
214 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
215 u_quad_t ifs6_out_timeexceed;
216 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
217 u_quad_t ifs6_out_paramprob;
218 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
219 u_quad_t ifs6_out_pkttoobig;
220 /* ipv6IfIcmpOutEchos, # of output echo requests */
221 u_quad_t ifs6_out_echo;
222 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
223 u_quad_t ifs6_out_echoreply;
224 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
225 u_quad_t ifs6_out_routersolicit;
226 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
227 u_quad_t ifs6_out_routeradvert;
228 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
229 u_quad_t ifs6_out_neighborsolicit;
230 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
231 u_quad_t ifs6_out_neighboradvert;
232 /* ipv6IfIcmpOutRedirects, # of output redirects */
233 u_quad_t ifs6_out_redirect;
234 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
235 u_quad_t ifs6_out_mldquery;
236 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
237 u_quad_t ifs6_out_mldreport;
238 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
239 u_quad_t ifs6_out_mlddone;
243 char ifr_name[IFNAMSIZ];
245 struct sockaddr_in6 ifru_addr;
246 struct sockaddr_in6 ifru_dstaddr;
251 struct in6_addrlifetime ifru_lifetime;
252 struct in6_ifstat ifru_stat;
253 struct icmp6_ifstat ifru_icmp6stat;
254 u_int32_t ifru_scope_id[16];
258 struct in6_aliasreq {
259 char ifra_name[IFNAMSIZ];
260 struct sockaddr_in6 ifra_addr;
261 struct sockaddr_in6 ifra_dstaddr;
262 struct sockaddr_in6 ifra_prefixmask;
264 struct in6_addrlifetime ifra_lifetime;
267 /* prefix type macro */
268 #define IN6_PREFIX_ND 1
269 #define IN6_PREFIX_RR 2
272 * prefix related flags passed between kernel(NDP related part) and
273 * user land command(ifconfig) and daemon(rtadvd).
278 u_char autonomous : 1;
281 u_char prf_reserved1;
282 u_short prf_reserved2;
283 /* want to put this on 4byte offset */
285 u_char decrvalid : 1;
286 u_char decrprefd : 1;
289 u_char prf_reserved3;
290 u_short prf_reserved4;
293 struct in6_prefixreq {
294 char ipr_name[IFNAMSIZ];
297 u_int32_t ipr_vltime;
298 u_int32_t ipr_pltime;
299 struct in6_prflags ipr_flags;
300 struct sockaddr_in6 ipr_prefix;
305 #define PR_ORIG_STATIC 2
306 #define PR_ORIG_KERNEL 3
308 #define ipr_raf_onlink ipr_flags.prf_ra.onlink
309 #define ipr_raf_auto ipr_flags.prf_ra.autonomous
311 #define ipr_statef_onlink ipr_flags.prf_state.onlink
313 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
314 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
316 struct in6_rrenumreq {
317 char irr_name[IFNAMSIZ];
319 u_char irr_m_len; /* match len for matchprefix */
320 u_char irr_m_minlen; /* minlen for matching prefix */
321 u_char irr_m_maxlen; /* maxlen for matching prefix */
322 u_char irr_u_uselen; /* uselen for adding prefix */
323 u_char irr_u_keeplen; /* keeplen from matching prefix */
324 struct irr_raflagmask {
326 u_char autonomous : 1;
329 u_int32_t irr_vltime;
330 u_int32_t irr_pltime;
331 struct in6_prflags irr_flags;
332 struct sockaddr_in6 irr_matchprefix;
333 struct sockaddr_in6 irr_useprefix;
336 #define irr_raf_mask_onlink irr_raflagmask.onlink
337 #define irr_raf_mask_auto irr_raflagmask.autonomous
338 #define irr_raf_mask_reserved irr_raflagmask.reserved
340 #define irr_raf_onlink irr_flags.prf_ra.onlink
341 #define irr_raf_auto irr_flags.prf_ra.autonomous
343 #define irr_statef_onlink irr_flags.prf_state.onlink
345 #define irr_rrf irr_flags.prf_rr
346 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
347 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
350 * Given a pointer to an in6_ifaddr (ifaddr),
351 * return a pointer to the addr as a sockaddr_in6
353 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
354 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
355 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
356 #define IA6_SIN6(ia) (&((ia)->ia_addr))
357 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
358 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
359 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
361 #define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
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 )
371 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
372 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
376 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
377 * we do not shift numbers for binary compatibility.
379 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
380 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
383 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
384 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
386 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
387 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
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)
393 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
395 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
396 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist)
398 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
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)
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)
411 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
412 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
414 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
416 #define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
417 #define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
418 #define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
420 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
421 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
422 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
423 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
424 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
425 struct in6_rrenumreq) /* change */
426 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
427 struct in6_rrenumreq) /* set global */
429 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
430 struct sioc_sg_req6) /* get s,g pkt cnt */
431 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
432 struct sioc_mif_req6) /* get pkt cnt per if */
434 #define IN6_IFF_ANYCAST 0x01 /* anycast address */
435 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */
436 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
437 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
438 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
439 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
440 * (used only at first SIOC* call)
442 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
443 #define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
444 #define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management.
445 * XXX: this should be temporary.
448 /* do not input/output */
449 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
452 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
453 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
457 extern struct in6_ifaddr *in6_ifaddr;
459 extern struct icmp6stat icmp6stat;
460 #define in6_ifstat_inc(ifp, tag) \
463 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
466 extern struct ifqueue ip6intrq; /* IP6 packet input queue */
467 extern struct in6_addr zeroin6_addr;
468 extern u_char inet6ctlerrmap[];
469 extern unsigned long in6_maxmtu;
470 #ifdef MALLOC_DECLARE
471 MALLOC_DECLARE(M_IPMADDR);
475 * Macro for finding the internet address structure (in6_ifaddr) corresponding
476 * to a given interface (ifnet structure).
479 #define IFP_TO_IA6(ifp, ia) \
480 /* struct ifnet *ifp; */ \
481 /* struct in6_ifaddr *ia; */ \
483 struct ifaddr *ifa; \
484 TAILQ_FOREACH(ifa, &(ifp)->if_addrhead, ifa_list) { \
485 if (!ifa->ifa_addr) \
487 if (ifa->ifa_addr->sa_family == AF_INET6) \
490 (ia) = (struct in6_ifaddr *)ifa; \
496 * Multi-cast membership entry. One for each group/ifp that a PCB
499 struct in6_multi_mship {
500 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
501 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
505 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
506 struct in6_addr in6m_addr; /* IP6 multicast address */
507 struct ifnet *in6m_ifp; /* back pointer to ifnet */
508 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
509 u_int in6m_refcount; /* # membership claims by sockets */
510 u_int in6m_state; /* state of the membership */
511 u_int in6m_timer; /* MLD6 listener report timer */
515 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
518 * Structure used by macros below to remember position when stepping through
519 * all of the in6_multi records.
521 struct in6_multistep {
522 struct in6_ifaddr *i_ia;
523 struct in6_multi *i_in6m;
527 * Macros for looking up the in6_multi record for a given IP6 multicast
528 * address on a given interface. If no matching record is found, "in6m"
532 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
533 /* struct in6_addr addr; */ \
534 /* struct ifnet *ifp; */ \
535 /* struct in6_multi *in6m; */ \
537 struct ifmultiaddr *ifma; \
538 for (ifma = (ifp)->if_multiaddrs.lh_first; ifma; \
539 ifma = ifma->ifma_link.le_next) { \
540 if (ifma->ifma_addr->sa_family == AF_INET6 \
541 && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \
545 (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \
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.
555 #define IN6_NEXT_MULTI(step, in6m) \
556 /* struct in6_multistep step; */ \
557 /* struct in6_multi *in6m; */ \
559 if (((in6m) = (step).i_in6m) != NULL) \
560 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
563 #define IN6_FIRST_MULTI(step, in6m) \
564 /* struct in6_multistep step; */ \
565 /* struct in6_multi *in6m */ \
567 (step).i_in6m = in6_multihead.lh_first; \
568 IN6_NEXT_MULTI((step), (in6m)); \
571 struct in6_multi *in6_addmulti (struct in6_addr *, struct ifnet *,
573 void in6_delmulti (struct in6_multi *);
574 extern int in6_ifindex2scopeid (int);
575 extern int in6_mask2len (struct in6_addr *, u_char *);
576 extern void in6_len2mask (struct in6_addr *, int);
577 int in6_control (struct socket *,
578 u_long, caddr_t, struct ifnet *, struct thread *);
579 int in6_update_ifa (struct ifnet *, struct in6_aliasreq *,
580 struct in6_ifaddr *);
581 void in6_purgeaddr (struct ifaddr *);
582 int in6if_do_dad (struct ifnet *);
583 void in6_purgeif (struct ifnet *);
584 void in6_savemkludge (struct in6_ifaddr *);
585 void *in6_domifattach (struct ifnet *);
586 void in6_domifdetach (struct ifnet *, void *);
587 void in6_setmaxmtu (void);
588 void in6_restoremkludge (struct in6_ifaddr *, struct ifnet *);
589 void in6_purgemkludge (struct ifnet *);
590 struct in6_ifaddr *in6ifa_ifpforlinklocal (struct ifnet *, int);
591 struct in6_ifaddr *in6ifa_ifpwithaddr (struct ifnet *,
593 char *ip6_sprintf (const struct in6_addr *);
594 int in6_addr2scopeid (struct ifnet *, struct in6_addr *);
595 int in6_matchlen (struct in6_addr *, struct in6_addr *);
596 int in6_are_prefix_equal (struct in6_addr *p1, struct in6_addr *p2,
598 void in6_prefixlen2mask (struct in6_addr *maskp, int len);
599 int in6_prefix_ioctl (struct socket *so, u_long cmd, caddr_t data,
601 int in6_prefix_add_ifid (int iilen, struct in6_ifaddr *ia);
602 void in6_prefix_remove_ifid (int iilen, struct in6_ifaddr *ia);
603 void in6_purgeprefix (struct ifnet *);
605 int in6_is_addr_deprecated (struct sockaddr_in6 *);
607 int in6_embedscope (struct in6_addr *, const struct sockaddr_in6 *,
608 struct inpcb *, struct ifnet **);
609 int in6_recoverscope (struct sockaddr_in6 *, const struct in6_addr *,
611 void in6_clearscope (struct in6_addr *);
614 #endif /* _NETINET6_IN6_VAR_H_ */