2 /* $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $ */
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65 * @(#)in_var.h 8.1 (Berkeley) 6/10/93
68 #ifndef _NETINET6_IN6_VAR_H_
69 #define _NETINET6_IN6_VAR_H_
72 * Interface address, Internet version. One of these structures
73 * is allocated for each interface with an Internet address.
74 * The ifaddr structure contains the protocol-independent part
75 * of the structure and is assumed to be first.
79 * pltime/vltime are just for future reference (required to implements 2
80 * hour rule for hosts). they should never be modified by nd6_timeout or
82 * userland -> kernel: accept pltime/vltime
83 * kernel -> userland: throw up everything
84 * in kernel: modify preferred/expire only
86 struct in6_addrlifetime {
87 time_t ia6t_expire; /* valid lifetime expiration time */
88 time_t ia6t_preferred; /* preferred lifetime expiration time */
89 u_int32_t ia6t_vltime; /* valid lifetime */
90 u_int32_t ia6t_pltime; /* prefix lifetime */
94 struct ifaddr ia_ifa; /* protocol-independent info */
95 #define ia_ifp ia_ifa.ifa_ifp
96 #define ia_flags ia_ifa.ifa_flags
97 struct sockaddr_in6 ia_addr; /* interface address */
98 struct sockaddr_in6 ia_net; /* network number of interface */
99 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
100 struct sockaddr_in6 ia_prefixmask; /* prefix mask */
101 u_int32_t ia_plen; /* prefix length */
102 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
105 struct in6_addrlifetime ia6_lifetime;
106 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */
108 struct nd_prefix *ia6_ndpr; /* back pointer to the ND prefix
109 * (for autoconfigured addresses only)
114 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
117 u_quad_t ifs6_in_receive; /* # of total input datagram */
118 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
119 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
120 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
121 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
122 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
123 /* NOTE: increment on final dst if */
124 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
125 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
126 /* NOTE: fragment timeout is not here */
127 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
128 /* NOTE: increment on final dst if */
129 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
130 /* NOTE: increment on outgoing if */
131 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
132 /* NOTE: does not include forwrads */
133 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
134 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
135 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
136 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
137 /* NOTE: this is # after fragment */
138 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
139 /* NOTE: increment on final dst if */
140 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
141 /* NOTE: this is # after reass */
142 /* NOTE: increment on final dst if */
143 u_quad_t ifs6_reass_fail; /* # of reass failures */
144 /* NOTE: may not be packet count */
145 /* NOTE: increment on final dst if */
146 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
147 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
151 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
152 * XXX: I'm not sure if this file is the right place for this structure...
154 struct icmp6_ifstat {
158 /* ipv6IfIcmpInMsgs, total # of input messages */
159 u_quad_t ifs6_in_msg;
160 /* ipv6IfIcmpInErrors, # of input error messages */
161 u_quad_t ifs6_in_error;
162 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
163 u_quad_t ifs6_in_dstunreach;
164 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
165 u_quad_t ifs6_in_adminprohib;
166 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
167 u_quad_t ifs6_in_timeexceed;
168 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
169 u_quad_t ifs6_in_paramprob;
170 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
171 u_quad_t ifs6_in_pkttoobig;
172 /* ipv6IfIcmpInEchos, # of input echo requests */
173 u_quad_t ifs6_in_echo;
174 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
175 u_quad_t ifs6_in_echoreply;
176 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
177 u_quad_t ifs6_in_routersolicit;
178 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
179 u_quad_t ifs6_in_routeradvert;
180 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
181 u_quad_t ifs6_in_neighborsolicit;
182 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
183 u_quad_t ifs6_in_neighboradvert;
184 /* ipv6IfIcmpInRedirects, # of input redirects */
185 u_quad_t ifs6_in_redirect;
186 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
187 u_quad_t ifs6_in_mldquery;
188 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
189 u_quad_t ifs6_in_mldreport;
190 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
191 u_quad_t ifs6_in_mlddone;
194 * Output statistics. We should solve unresolved routing problem...
196 /* ipv6IfIcmpOutMsgs, total # of output messages */
197 u_quad_t ifs6_out_msg;
198 /* ipv6IfIcmpOutErrors, # of output error messages */
199 u_quad_t ifs6_out_error;
200 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
201 u_quad_t ifs6_out_dstunreach;
202 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
203 u_quad_t ifs6_out_adminprohib;
204 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
205 u_quad_t ifs6_out_timeexceed;
206 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
207 u_quad_t ifs6_out_paramprob;
208 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
209 u_quad_t ifs6_out_pkttoobig;
210 /* ipv6IfIcmpOutEchos, # of output echo requests */
211 u_quad_t ifs6_out_echo;
212 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
213 u_quad_t ifs6_out_echoreply;
214 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
215 u_quad_t ifs6_out_routersolicit;
216 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
217 u_quad_t ifs6_out_routeradvert;
218 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
219 u_quad_t ifs6_out_neighborsolicit;
220 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
221 u_quad_t ifs6_out_neighboradvert;
222 /* ipv6IfIcmpOutRedirects, # of output redirects */
223 u_quad_t ifs6_out_redirect;
224 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
225 u_quad_t ifs6_out_mldquery;
226 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
227 u_quad_t ifs6_out_mldreport;
228 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
229 u_quad_t ifs6_out_mlddone;
233 char ifr_name[IFNAMSIZ];
235 struct sockaddr_in6 ifru_addr;
236 struct sockaddr_in6 ifru_dstaddr;
241 struct in6_addrlifetime ifru_lifetime;
242 struct in6_ifstat ifru_stat;
243 struct icmp6_ifstat ifru_icmp6stat;
244 u_int32_t ifru_scope_id[16];
248 struct in6_aliasreq {
249 char ifra_name[IFNAMSIZ];
250 struct sockaddr_in6 ifra_addr;
251 struct sockaddr_in6 ifra_dstaddr;
252 struct sockaddr_in6 ifra_prefixmask;
254 struct in6_addrlifetime ifra_lifetime;
257 /* prefix type macro */
258 #define IN6_PREFIX_ND 1
259 #define IN6_PREFIX_RR 2
262 * prefix related flags passed between kernel(NDP related part) and
263 * user land command(ifconfig) and daemon(rtadvd).
268 u_char autonomous : 1;
271 u_char prf_reserved1;
272 u_short prf_reserved2;
273 /* want to put this on 4byte offset */
275 u_char decrvalid : 1;
276 u_char decrprefd : 1;
279 u_char prf_reserved3;
280 u_short prf_reserved4;
283 struct in6_prefixreq {
284 char ipr_name[IFNAMSIZ];
287 u_int32_t ipr_vltime;
288 u_int32_t ipr_pltime;
289 struct in6_prflags ipr_flags;
290 struct sockaddr_in6 ipr_prefix;
295 #define PR_ORIG_STATIC 2
296 #define PR_ORIG_KERNEL 3
298 #define ipr_raf_onlink ipr_flags.prf_ra.onlink
299 #define ipr_raf_auto ipr_flags.prf_ra.autonomous
301 #define ipr_statef_onlink ipr_flags.prf_state.onlink
303 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
304 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
306 struct in6_rrenumreq {
307 char irr_name[IFNAMSIZ];
309 u_char irr_m_len; /* match len for matchprefix */
310 u_char irr_m_minlen; /* minlen for matching prefix */
311 u_char irr_m_maxlen; /* maxlen for matching prefix */
312 u_char irr_u_uselen; /* uselen for adding prefix */
313 u_char irr_u_keeplen; /* keeplen from matching prefix */
314 struct irr_raflagmask {
316 u_char autonomous : 1;
319 u_int32_t irr_vltime;
320 u_int32_t irr_pltime;
321 struct in6_prflags irr_flags;
322 struct sockaddr_in6 irr_matchprefix;
323 struct sockaddr_in6 irr_useprefix;
326 #define irr_raf_mask_onlink irr_raflagmask.onlink
327 #define irr_raf_mask_auto irr_raflagmask.autonomous
328 #define irr_raf_mask_reserved irr_raflagmask.reserved
330 #define irr_raf_onlink irr_flags.prf_ra.onlink
331 #define irr_raf_auto irr_flags.prf_ra.autonomous
333 #define irr_statef_onlink irr_flags.prf_state.onlink
335 #define irr_rrf irr_flags.prf_rr
336 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
337 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
340 * Given a pointer to an in6_ifaddr (ifaddr),
341 * return a pointer to the addr as a sockaddr_in6
343 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
344 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
345 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
346 #define IA6_SIN6(ia) (&((ia)->ia_addr))
347 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
348 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
349 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
351 #define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
354 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
355 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
356 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
357 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
358 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
361 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
362 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
366 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
367 * we do not shift numbers for binary compatibility.
369 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
370 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
373 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
374 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
376 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
377 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
379 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
380 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
381 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
383 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
385 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
386 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist)
388 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq)
390 #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
391 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
392 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
393 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
394 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
396 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
397 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
398 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
399 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
401 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
402 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
404 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
406 #define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
407 #define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
408 #define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
410 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
411 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
412 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
413 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
414 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
415 struct in6_rrenumreq) /* change */
416 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
417 struct in6_rrenumreq) /* set global */
419 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
420 struct sioc_sg_req6) /* get s,g pkt cnt */
421 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
422 struct sioc_mif_req6) /* get pkt cnt per if */
424 #define IN6_IFF_ANYCAST 0x01 /* anycast address */
425 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */
426 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
427 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
428 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
429 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
430 * (used only at first SIOC* call)
432 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
433 #define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
434 #define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management.
435 * XXX: this should be temporary.
438 /* do not input/output */
439 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
442 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
443 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
447 extern struct in6_ifaddr *in6_ifaddr;
449 extern struct in6_ifstat **in6_ifstat;
450 extern size_t in6_ifstatmax;
451 extern struct icmp6stat icmp6stat;
452 extern struct icmp6_ifstat **icmp6_ifstat;
453 extern size_t icmp6_ifstatmax;
454 #define in6_ifstat_inc(ifp, tag) \
456 if ((ifp) && (ifp)->if_index <= if_index \
457 && (ifp)->if_index < in6_ifstatmax \
458 && in6_ifstat && in6_ifstat[(ifp)->if_index]) { \
459 in6_ifstat[(ifp)->if_index]->tag++; \
463 extern struct ifqueue ip6intrq; /* IP6 packet input queue */
464 extern struct in6_addr zeroin6_addr;
465 extern u_char inet6ctlerrmap[];
466 extern unsigned long in6_maxmtu;
467 #ifdef MALLOC_DECLARE
468 MALLOC_DECLARE(M_IPMADDR);
472 * Macro for finding the internet address structure (in6_ifaddr) corresponding
473 * to a given interface (ifnet structure).
476 #define IFP_TO_IA6(ifp, ia) \
477 /* struct ifnet *ifp; */ \
478 /* struct in6_ifaddr *ia; */ \
480 struct ifaddr *ifa; \
481 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \
482 if (!ifa->ifa_addr) \
484 if (ifa->ifa_addr->sa_family == AF_INET6) \
487 (ia) = (struct in6_ifaddr *)ifa; \
493 * Multi-cast membership entry. One for each group/ifp that a PCB
496 struct in6_multi_mship {
497 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
498 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
502 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
503 struct in6_addr in6m_addr; /* IP6 multicast address */
504 struct ifnet *in6m_ifp; /* back pointer to ifnet */
505 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
506 u_int in6m_refcount; /* # membership claims by sockets */
507 u_int in6m_state; /* state of the membership */
508 u_int in6m_timer; /* MLD6 listener report timer */
512 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
515 * Structure used by macros below to remember position when stepping through
516 * all of the in6_multi records.
518 struct in6_multistep {
519 struct in6_ifaddr *i_ia;
520 struct in6_multi *i_in6m;
524 * Macros for looking up the in6_multi record for a given IP6 multicast
525 * address on a given interface. If no matching record is found, "in6m"
529 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
530 /* struct in6_addr addr; */ \
531 /* struct ifnet *ifp; */ \
532 /* struct in6_multi *in6m; */ \
534 struct ifmultiaddr *ifma; \
535 TAILQ_FOREACH(ifma, &(ifp)->if_multiaddrs, ifma_link) { \
536 if (ifma->ifma_addr->sa_family == AF_INET6 \
537 && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \
541 (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \
545 * Macro to step through all of the in6_multi records, one at a time.
546 * The current position is remembered in "step", which the caller must
547 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
548 * and get the first record. Both macros return a NULL "in6m" when there
549 * are no remaining records.
551 #define IN6_NEXT_MULTI(step, in6m) \
552 /* struct in6_multistep step; */ \
553 /* struct in6_multi *in6m; */ \
555 if (((in6m) = (step).i_in6m) != NULL) \
556 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
559 #define IN6_FIRST_MULTI(step, in6m) \
560 /* struct in6_multistep step; */ \
561 /* struct in6_multi *in6m */ \
563 (step).i_in6m = in6_multihead.lh_first; \
564 IN6_NEXT_MULTI((step), (in6m)); \
567 struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *,
569 void in6_delmulti __P((struct in6_multi *));
570 extern int in6_ifindex2scopeid __P((int));
571 extern int in6_mask2len __P((struct in6_addr *, u_char *));
572 extern void in6_len2mask __P((struct in6_addr *, int));
573 int in6_control __P((struct socket *,
574 u_long, caddr_t, struct ifnet *, struct thread *));
575 int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *,
576 struct in6_ifaddr *));
577 void in6_purgeaddr __P((struct ifaddr *));
578 int in6if_do_dad __P((struct ifnet *));
579 void in6_purgeif __P((struct ifnet *));
580 void in6_savemkludge __P((struct in6_ifaddr *));
581 void in6_setmaxmtu __P((void));
582 void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *));
583 void in6_purgemkludge __P((struct ifnet *));
584 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int));
585 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *,
587 char *ip6_sprintf __P((const struct in6_addr *));
588 int in6_addr2scopeid __P((struct ifnet *, struct in6_addr *));
589 int in6_matchlen __P((struct in6_addr *, struct in6_addr *));
590 int in6_are_prefix_equal __P((struct in6_addr *p1, struct in6_addr *p2,
592 void in6_prefixlen2mask __P((struct in6_addr *maskp, int len));
593 int in6_prefix_ioctl __P((struct socket *so, u_long cmd, caddr_t data,
595 int in6_prefix_add_ifid __P((int iilen, struct in6_ifaddr *ia));
596 void in6_prefix_remove_ifid __P((int iilen, struct in6_ifaddr *ia));
597 void in6_purgeprefix __P((struct ifnet *));
599 int in6_is_addr_deprecated __P((struct sockaddr_in6 *));
601 int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *,
602 struct inpcb *, struct ifnet **));
603 int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *,
605 void in6_clearscope __P((struct in6_addr *));
608 #endif /* _NETINET6_IN6_VAR_H_ */