2 /* $KAME: in6_var.h,v 1.33 2000/05/17 05:07:26 jinmei 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: throuw 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; /* NULL = infty */
106 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */
110 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
113 u_quad_t ifs6_in_receive; /* # of total input datagram */
114 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
115 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
116 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
117 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
118 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
119 /* NOTE: increment on final dst if */
120 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
121 u_quad_t ifs6_in_discard; /* # of discarded datagrams */
122 /* NOTE: fragment timeout is not here */
123 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
124 /* NOTE: increment on final dst if */
125 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
126 /* NOTE: increment on outgoing if */
127 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
128 /* NOTE: does not include forwrads */
129 u_quad_t ifs6_out_discard; /* # of discarded datagrams */
130 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
131 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
132 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
133 /* NOTE: this is # after fragment */
134 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
135 /* NOTE: increment on final dst if */
136 u_quad_t ifs6_reass_ok; /* # of reassembled packets */
137 /* NOTE: this is # after reass */
138 /* NOTE: increment on final dst if */
139 u_quad_t ifs6_reass_fail; /* # of reass failures */
140 /* NOTE: may not be packet count */
141 /* NOTE: increment on final dst if */
142 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
143 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
147 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
148 * XXX: I'm not sure if this file is the right place for this structure...
150 struct icmp6_ifstat {
154 /* ipv6IfIcmpInMsgs, total # of input messages */
155 u_quad_t ifs6_in_msg;
156 /* ipv6IfIcmpInErrors, # of input error messages */
157 u_quad_t ifs6_in_error;
158 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
159 u_quad_t ifs6_in_dstunreach;
160 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
161 u_quad_t ifs6_in_adminprohib;
162 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
163 u_quad_t ifs6_in_timeexceed;
164 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
165 u_quad_t ifs6_in_paramprob;
166 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
167 u_quad_t ifs6_in_pkttoobig;
168 /* ipv6IfIcmpInEchos, # of input echo requests */
169 u_quad_t ifs6_in_echo;
170 /* ipv6IfIcmpInEchoReplies, # of input echo replies */
171 u_quad_t ifs6_in_echoreply;
172 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
173 u_quad_t ifs6_in_routersolicit;
174 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
175 u_quad_t ifs6_in_routeradvert;
176 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
177 u_quad_t ifs6_in_neighborsolicit;
178 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
179 u_quad_t ifs6_in_neighboradvert;
180 /* ipv6IfIcmpInRedirects, # of input redirects */
181 u_quad_t ifs6_in_redirect;
182 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
183 u_quad_t ifs6_in_mldquery;
184 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
185 u_quad_t ifs6_in_mldreport;
186 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
187 u_quad_t ifs6_in_mlddone;
190 * Output statistics. We should solve unresolved routing problem...
192 /* ipv6IfIcmpOutMsgs, total # of output messages */
193 u_quad_t ifs6_out_msg;
194 /* ipv6IfIcmpOutErrors, # of output error messages */
195 u_quad_t ifs6_out_error;
196 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
197 u_quad_t ifs6_out_dstunreach;
198 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
199 u_quad_t ifs6_out_adminprohib;
200 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
201 u_quad_t ifs6_out_timeexceed;
202 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
203 u_quad_t ifs6_out_paramprob;
204 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
205 u_quad_t ifs6_out_pkttoobig;
206 /* ipv6IfIcmpOutEchos, # of output echo requests */
207 u_quad_t ifs6_out_echo;
208 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
209 u_quad_t ifs6_out_echoreply;
210 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
211 u_quad_t ifs6_out_routersolicit;
212 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
213 u_quad_t ifs6_out_routeradvert;
214 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
215 u_quad_t ifs6_out_neighborsolicit;
216 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
217 u_quad_t ifs6_out_neighboradvert;
218 /* ipv6IfIcmpOutRedirects, # of output redirects */
219 u_quad_t ifs6_out_redirect;
220 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
221 u_quad_t ifs6_out_mldquery;
222 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
223 u_quad_t ifs6_out_mldreport;
224 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
225 u_quad_t ifs6_out_mlddone;
229 char ifr_name[IFNAMSIZ];
231 struct sockaddr_in6 ifru_addr;
232 struct sockaddr_in6 ifru_dstaddr;
237 struct in6_addrlifetime ifru_lifetime;
238 struct in6_ifstat ifru_stat;
239 struct icmp6_ifstat ifru_icmp6stat;
240 u_int32_t ifru_scope_id[16];
244 struct in6_aliasreq {
245 char ifra_name[IFNAMSIZ];
246 struct sockaddr_in6 ifra_addr;
247 struct sockaddr_in6 ifra_dstaddr;
248 struct sockaddr_in6 ifra_prefixmask;
250 struct in6_addrlifetime ifra_lifetime;
253 /* prefix type macro */
254 #define IN6_PREFIX_ND 1
255 #define IN6_PREFIX_RR 2
258 * prefix related flags passed between kernel(NDP related part) and
259 * user land command(ifconfig) and daemon(rtadvd).
264 u_char autonomous : 1;
267 u_char prf_reserved1;
268 u_short prf_reserved2;
269 /* want to put this on 4byte offset */
271 u_char decrvalid : 1;
272 u_char decrprefd : 1;
275 u_char prf_reserved3;
276 u_short prf_reserved4;
279 struct in6_prefixreq {
280 char ipr_name[IFNAMSIZ];
283 u_int32_t ipr_vltime;
284 u_int32_t ipr_pltime;
285 struct in6_prflags ipr_flags;
286 struct sockaddr_in6 ipr_prefix;
291 #define PR_ORIG_STATIC 2
292 #define PR_ORIG_KERNEL 3
294 #define ipr_raf_onlink ipr_flags.prf_ra.onlink
295 #define ipr_raf_auto ipr_flags.prf_ra.autonomous
297 #define ipr_statef_onlink ipr_flags.prf_state.onlink
299 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid
300 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd
302 struct in6_rrenumreq {
303 char irr_name[IFNAMSIZ];
305 u_char irr_m_len; /* match len for matchprefix */
306 u_char irr_m_minlen; /* minlen for matching prefix */
307 u_char irr_m_maxlen; /* maxlen for matching prefix */
308 u_char irr_u_uselen; /* uselen for adding prefix */
309 u_char irr_u_keeplen; /* keeplen from matching prefix */
310 struct irr_raflagmask {
312 u_char autonomous : 1;
315 u_int32_t irr_vltime;
316 u_int32_t irr_pltime;
317 struct in6_prflags irr_flags;
318 struct sockaddr_in6 irr_matchprefix;
319 struct sockaddr_in6 irr_useprefix;
322 #define irr_raf_mask_onlink irr_raflagmask.onlink
323 #define irr_raf_mask_auto irr_raflagmask.autonomous
324 #define irr_raf_mask_reserved irr_raflagmask.reserved
326 #define irr_raf_onlink irr_flags.prf_ra.onlink
327 #define irr_raf_auto irr_flags.prf_ra.autonomous
329 #define irr_statef_onlink irr_flags.prf_state.onlink
331 #define irr_rrf irr_flags.prf_rr
332 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid
333 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd
336 * Given a pointer to an in6_ifaddr (ifaddr),
337 * return a pointer to the addr as a sockaddr_in6
339 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
340 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
341 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
342 #define IA6_SIN6(ia) (&((ia)->ia_addr))
343 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
344 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
345 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
347 #define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
350 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
351 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
352 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
353 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
354 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
357 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
358 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
362 * SIOCSxxx ioctls should be unused (see comments in in6.c), but
363 * we do not shift numbers for binary compatibility.
365 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
366 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
369 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
370 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
372 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
373 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
375 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq)
376 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
377 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
379 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
381 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist)
382 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist)
383 #define SIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ndireq)
384 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq)
385 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
386 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq)
387 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq)
389 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
390 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
391 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
392 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
394 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq)
395 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq)
397 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */
399 #define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq)
400 #define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq)
401 #define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq)
403 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */
404 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */
405 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */
406 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */
407 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \
408 struct in6_rrenumreq) /* change */
409 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \
410 struct in6_rrenumreq) /* set global */
412 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
413 struct sioc_sg_req6) /* get s,g pkt cnt */
414 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
415 struct sioc_mif_req6) /* get pkt cnt per if */
417 #define IN6_IFF_ANYCAST 0x01 /* anycast address */
418 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */
419 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
420 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
421 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
423 /* do not input/output */
424 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
427 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
428 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
432 extern struct in6_ifaddr *in6_ifaddr;
434 extern struct in6_ifstat **in6_ifstat;
435 extern size_t in6_ifstatmax;
436 extern struct icmp6stat icmp6stat;
437 extern struct icmp6_ifstat **icmp6_ifstat;
438 extern size_t icmp6_ifstatmax;
439 #define in6_ifstat_inc(ifp, tag) \
441 if ((ifp) && (ifp)->if_index <= if_index \
442 && (ifp)->if_index < in6_ifstatmax \
443 && in6_ifstat && in6_ifstat[(ifp)->if_index]) { \
444 in6_ifstat[(ifp)->if_index]->tag++; \
448 extern struct ifqueue ip6intrq; /* IP6 packet input queue */
449 extern struct in6_addr zeroin6_addr;
450 extern u_char inet6ctlerrmap[];
451 extern unsigned long in6_maxmtu;
452 #ifdef MALLOC_DECLARE
453 MALLOC_DECLARE(M_IPMADDR);
457 * Macro for finding the internet address structure (in6_ifaddr) corresponding
458 * to a given interface (ifnet structure).
461 #define IFP_TO_IA6(ifp, ia) \
462 /* struct ifnet *ifp; */ \
463 /* struct in6_ifaddr *ia; */ \
465 struct ifaddr *ifa; \
466 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \
467 if (!ifa->ifa_addr) \
469 if (ifa->ifa_addr->sa_family == AF_INET6) \
472 (ia) = (struct in6_ifaddr *)ifa; \
478 * Multi-cast membership entry. One for each group/ifp that a PCB
481 struct in6_multi_mship {
482 struct in6_multi *i6mm_maddr; /* Multicast address pointer */
483 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
487 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
488 struct in6_addr in6m_addr; /* IP6 multicast address */
489 struct ifnet *in6m_ifp; /* back pointer to ifnet */
490 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
491 u_int in6m_refcount; /* # membership claims by sockets */
492 u_int in6m_state; /* state of the membership */
493 u_int in6m_timer; /* MLD6 listener report timer */
497 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
500 * Structure used by macros below to remember position when stepping through
501 * all of eht in6_multi records.
503 struct in6_multistep {
504 struct in6_ifaddr *i_ia;
505 struct in6_multi *i_in6m;
509 * Macros for looking up the in6_multi record for a given IP6 multicast
510 * address on a given interface. If no matching record is found, "in6m"
514 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
515 /* struct in6_addr addr; */ \
516 /* struct ifnet *ifp; */ \
517 /* struct in6_multi *in6m; */ \
519 register struct ifmultiaddr *ifma; \
520 TAILQ_FOREACH(ifma, &(ifp)->if_multiaddrs, ifma_link) { \
521 if (ifma->ifma_addr->sa_family == AF_INET6 \
522 && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \
526 (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \
530 * Macro to step through all of the in6_multi records, one at a time.
531 * The current position is remembered in "step", which the caller must
532 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step"
533 * and get the first record. Both macros return a NULL "in6m" when there
534 * are no remaining records.
536 #define IN6_NEXT_MULTI(step, in6m) \
537 /* struct in6_multistep step; */ \
538 /* struct in6_multi *in6m; */ \
540 if (((in6m) = (step).i_in6m) != NULL) \
541 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
544 #define IN6_FIRST_MULTI(step, in6m) \
545 /* struct in6_multistep step; */ \
546 /* struct in6_multi *in6m */ \
548 (step).i_in6m = in6_multihead.lh_first; \
549 IN6_NEXT_MULTI((step), (in6m)); \
552 int in6_ifinit __P((struct ifnet *,
553 struct in6_ifaddr *, struct sockaddr_in6 *, int));
554 struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *,
556 void in6_delmulti __P((struct in6_multi *));
557 void in6_ifscrub __P((struct ifnet *, struct in6_ifaddr *));
558 extern int in6_ifindex2scopeid __P((int));
559 extern int in6_mask2len __P((struct in6_addr *));
560 extern void in6_len2mask __P((struct in6_addr *, int));
561 int in6_control __P((struct socket *,
562 u_long, caddr_t, struct ifnet *, struct proc *));
563 void in6_purgeaddr __P((struct ifaddr *, struct ifnet *));
564 void in6_savemkludge __P((struct in6_ifaddr *));
565 void in6_setmaxmtu __P((void));
566 void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *));
567 void in6_purgemkludge __P((struct ifnet *));
568 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int));
569 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *,
571 char *ip6_sprintf __P((struct in6_addr *));
572 int in6_addr2scopeid __P((struct ifnet *, struct in6_addr *));
573 int in6_matchlen __P((struct in6_addr *, struct in6_addr *));
574 int in6_are_prefix_equal __P((struct in6_addr *p1, struct in6_addr *p2,
576 void in6_prefixlen2mask __P((struct in6_addr *maskp, int len));
577 int in6_prefix_ioctl __P((struct socket *so, u_long cmd, caddr_t data,
579 int in6_prefix_add_ifid __P((int iilen, struct in6_ifaddr *ia));
580 void in6_prefix_remove_ifid __P((int iilen, struct in6_ifaddr *ia));
581 void in6_purgeprefix __P((struct ifnet *));
584 #endif /* _NETINET6_IN6_VAR_H_ */