in6_var.h revision 52904
1/* 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30/* 31 * Copyright (c) 1985, 1986, 1993 32 * The Regents of the University of California. All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. All advertising materials mentioning features or use of this software 43 * must display the following acknowledgement: 44 * This product includes software developed by the University of 45 * California, Berkeley and its contributors. 46 * 4. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 * @(#)in_var.h 8.1 (Berkeley) 6/10/93 63 * $FreeBSD: head/sys/netinet6/in6_var.h 52904 1999-11-05 14:41:39Z shin $ 64 */ 65 66#ifndef _NETINET6_IN6_VAR_H_ 67#define _NETINET6_IN6_VAR_H_ 68 69/* 70 * Interface address, Internet version. One of these structures 71 * is allocated for each interface with an Internet address. 72 * The ifaddr structure contains the protocol-independent part 73 * of the structure and is assumed to be first. 74 */ 75 76/* 77 * pltime/vltime are just for future reference (required to implements 2 78 * hour rule for hosts). they should never be modified by nd6_timeout or 79 * anywhere else. 80 * userland -> kernel: accept pltime/vltime 81 * kernel -> userland: throuw up everything 82 * in kernel: modify preferred/expire only 83 */ 84struct in6_addrlifetime { 85 time_t ia6t_expire; /* valid lifetime expiration time */ 86 time_t ia6t_preferred; /* preferred lifetime expiration time */ 87 u_int32_t ia6t_vltime; /* valid lifetime */ 88 u_int32_t ia6t_pltime; /* prefix lifetime */ 89}; 90 91struct in6_ifaddr { 92 struct ifaddr ia_ifa; /* protocol-independent info */ 93#define ia_ifp ia_ifa.ifa_ifp 94#define ia_flags ia_ifa.ifa_flags 95 struct sockaddr_in6 ia_addr; /* interface address */ 96 struct sockaddr_in6 ia_net; /* network number of interface */ 97 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 98 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 99 u_int32_t ia_plen; /* prefix length */ 100 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 101#if !(defined(__FreeBSD__) && __FreeBSD__ >= 3) 102 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; 103 /* list of multicast addresses */ 104#endif 105 int ia6_flags; 106 107 struct in6_addrlifetime ia6_lifetime; /* NULL = infty */ 108 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */ 109}; 110 111/* 112 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 113 */ 114struct in6_ifstat { 115 u_int64_t ifs6_in_receive; /* # of total input datagram */ 116 u_int64_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 117 u_int64_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 118 u_int64_t ifs6_in_noroute; /* # of datagrams with no route */ 119 u_int64_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 120 u_int64_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 121 /* NOTE: increment on final dst if */ 122 u_int64_t ifs6_in_truncated; /* # of truncated datagrams */ 123 u_int64_t ifs6_in_discard; /* # of discarded datagrams */ 124 /* NOTE: fragment timeout is not here */ 125 u_int64_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 126 /* NOTE: increment on final dst if */ 127 u_int64_t ifs6_out_forward; /* # of datagrams forwarded */ 128 /* NOTE: increment on outgoing if */ 129 u_int64_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 130 /* NOTE: does not include forwrads */ 131 u_int64_t ifs6_out_discard; /* # of discarded datagrams */ 132 u_int64_t ifs6_out_fragok; /* # of datagrams fragmented */ 133 u_int64_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 134 u_int64_t ifs6_out_fragcreat; /* # of fragment datagrams */ 135 /* NOTE: this is # after fragment */ 136 u_int64_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 137 /* NOTE: increment on final dst if */ 138 u_int64_t ifs6_reass_ok; /* # of reassembled packets */ 139 /* NOTE: this is # after reass */ 140 /* NOTE: increment on final dst if */ 141 u_int64_t ifs6_reass_fail; /* # of reass failures */ 142 /* NOTE: may not be packet count */ 143 /* NOTE: increment on final dst if */ 144 u_int64_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 145 u_int64_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 146}; 147 148/* 149 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 150 * XXX: I'm not sure if this file is the right place for this structure... 151 */ 152struct icmp6_ifstat { 153 /* 154 * Input statistics 155 */ 156 /* ipv6IfIcmpInMsgs, total # of input messages */ 157 u_int64_t ifs6_in_msg; 158 /* ipv6IfIcmpInErrors, # of input error messages */ 159 u_int64_t ifs6_in_error; 160 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 161 u_int64_t ifs6_in_dstunreach; 162 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 163 u_int64_t ifs6_in_adminprohib; 164 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 165 u_int64_t ifs6_in_timeexceed; 166 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 167 u_int64_t ifs6_in_paramprob; 168 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 169 u_int64_t ifs6_in_pkttoobig; 170 /* ipv6IfIcmpInEchos, # of input echo requests */ 171 u_int64_t ifs6_in_echo; 172 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 173 u_int64_t ifs6_in_echoreply; 174 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 175 u_int64_t ifs6_in_routersolicit; 176 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 177 u_int64_t ifs6_in_routeradvert; 178 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 179 u_int64_t ifs6_in_neighborsolicit; 180 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 181 u_int64_t ifs6_in_neighboradvert; 182 /* ipv6IfIcmpInRedirects, # of input redirects */ 183 u_int64_t ifs6_in_redirect; 184 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 185 u_int64_t ifs6_in_mldquery; 186 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 187 u_int64_t ifs6_in_mldreport; 188 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 189 u_int64_t ifs6_in_mlddone; 190 191 /* 192 * Output statistics. We should solve unresolved routing problem... 193 */ 194 /* ipv6IfIcmpOutMsgs, total # of output messages */ 195 u_int64_t ifs6_out_msg; 196 /* ipv6IfIcmpOutErrors, # of output error messages */ 197 u_int64_t ifs6_out_error; 198 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 199 u_int64_t ifs6_out_dstunreach; 200 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 201 u_int64_t ifs6_out_adminprohib; 202 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 203 u_int64_t ifs6_out_timeexceed; 204 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 205 u_int64_t ifs6_out_paramprob; 206 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 207 u_int64_t ifs6_out_pkttoobig; 208 /* ipv6IfIcmpOutEchos, # of output echo requests */ 209 u_int64_t ifs6_out_echo; 210 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 211 u_int64_t ifs6_out_echoreply; 212 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 213 u_int64_t ifs6_out_routersolicit; 214 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 215 u_int64_t ifs6_out_routeradvert; 216 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 217 u_int64_t ifs6_out_neighborsolicit; 218 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 219 u_int64_t ifs6_out_neighboradvert; 220 /* ipv6IfIcmpOutRedirects, # of output redirects */ 221 u_int64_t ifs6_out_redirect; 222 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 223 u_int64_t ifs6_out_mldquery; 224 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 225 u_int64_t ifs6_out_mldreport; 226 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 227 u_int64_t ifs6_out_mlddone; 228}; 229 230struct in6_ifreq { 231 char ifr_name[IFNAMSIZ]; 232 union { 233 struct sockaddr_in6 ifru_addr; 234 struct sockaddr_in6 ifru_dstaddr; 235 short ifru_flags; 236 int ifru_flags6; 237 int ifru_metric; 238 caddr_t ifru_data; 239 struct in6_addrlifetime ifru_lifetime; 240 struct in6_ifstat ifru_stat; 241 struct icmp6_ifstat ifru_icmp6stat; 242 } ifr_ifru; 243}; 244 245struct in6_aliasreq { 246 char ifra_name[IFNAMSIZ]; 247 struct sockaddr_in6 ifra_addr; 248 struct sockaddr_in6 ifra_dstaddr; 249 struct sockaddr_in6 ifra_prefixmask; 250 int ifra_flags; 251 struct in6_addrlifetime ifra_lifetime; 252}; 253 254/* prefix type macro */ 255#define IN6_PREFIX_ND 1 256#define IN6_PREFIX_RR 2 257 258/* 259 * prefix related flags passed between kernel(NDP related part) and 260 * user land command(ifconfig) and daemon(rtadvd). 261 */ 262struct in6_prflags { 263 struct prf_ra { 264 u_char onlink : 1; 265 u_char autonomous : 1; 266 u_char reserved : 6; 267 } prf_ra; 268 u_char prf_reserved1; 269 u_short prf_reserved2; 270 /* want to put this on 4byte offset */ 271 struct prf_rr { 272 u_char decrvalid : 1; 273 u_char decrprefd : 1; 274 u_char reserved : 6; 275 } prf_rr; 276 u_char prf_reserved3; 277 u_short prf_reserved4; 278}; 279 280struct in6_prefixreq { 281 char ipr_name[IFNAMSIZ]; 282 u_char ipr_origin; 283 u_char ipr_plen; 284 u_int32_t ipr_vltime; 285 u_int32_t ipr_pltime; 286 struct in6_prflags ipr_flags; 287 struct sockaddr_in6 ipr_prefix; 288}; 289 290#define PR_ORIG_RA 0 291#define PR_ORIG_RR 1 292#define PR_ORIG_STATIC 2 293#define PR_ORIG_KERNEL 3 294 295#define ipr_raf_onlink ipr_flags.prf_ra.onlink 296#define ipr_raf_auto ipr_flags.prf_ra.autonomous 297 298#define ipr_statef_onlink ipr_flags.prf_state.onlink 299 300#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 301#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 302 303struct in6_rrenumreq { 304 char irr_name[IFNAMSIZ]; 305 u_char irr_origin; 306 u_char irr_m_len; /* match len for matchprefix */ 307 u_char irr_m_minlen; /* minlen for matching prefix */ 308 u_char irr_m_maxlen; /* maxlen for matching prefix */ 309 u_char irr_u_uselen; /* uselen for adding prefix */ 310 u_char irr_u_keeplen; /* keeplen from matching prefix */ 311 struct irr_raflagmask { 312 u_char onlink : 1; 313 u_char autonomous : 1; 314 u_char reserved : 6; 315 } irr_raflagmask; 316 u_int32_t irr_vltime; 317 u_int32_t irr_pltime; 318 struct in6_prflags irr_flags; 319 struct sockaddr_in6 irr_matchprefix; 320 struct sockaddr_in6 irr_useprefix; 321}; 322 323#define irr_raf_mask_onlink irr_raflagmask.onlink 324#define irr_raf_mask_auto irr_raflagmask.autonomous 325#define irr_raf_mask_reserved irr_raflagmask.reserved 326 327#define irr_raf_onlink irr_flags.prf_ra.onlink 328#define irr_raf_auto irr_flags.prf_ra.autonomous 329 330#define irr_statef_onlink irr_flags.prf_state.onlink 331 332#define irr_rrf irr_flags.prf_rr 333#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 334#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 335 336/* 337 * Given a pointer to an in6_ifaddr (ifaddr), 338 * return a pointer to the addr as a sockaddr_in6 339 */ 340#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 341#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 342#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 343#define IA6_SIN6(ia) (&((ia)->ia_addr)) 344#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 345#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 346#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 347 348#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) 349 350#ifdef _KERNEL 351#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 352 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 353 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 354 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 355 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 356#endif 357 358#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 359#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 360#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 361#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 362#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 363#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 364 365#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 366#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 367 368#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 369#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 370#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 371 372#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 373 374#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 375#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist) 376#define SIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ndireq) 377#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 378#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 379#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 380#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 381 382#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 383#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 384#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 385#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 386 387#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 388#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 389#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 390#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 391#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 392 struct in6_rrenumreq) /* change */ 393#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 394 struct in6_rrenumreq) /* set global */ 395 396#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 397 struct sioc_sg_req6) /* get s,g pkt cnt */ 398#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 399 struct sioc_mif_req6) /* get pkt cnt per if */ 400 401#define IN6_IFF_ANYCAST 0x01 /* anycast address */ 402#define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 403#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 404#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 405#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 406 407/* do not input/output */ 408#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 409 410#ifdef _KERNEL 411extern struct in6_ifaddr *in6_ifaddr; 412 413extern struct in6_ifstat **in6_ifstat; 414extern size_t in6_ifstatmax; 415extern struct icmp6stat icmp6stat; 416extern struct icmp6_ifstat **icmp6_ifstat; 417extern size_t icmp6_ifstatmax; 418#define in6_ifstat_inc(ifp, tag) \ 419do { \ 420 if ((ifp) && (ifp)->if_index <= if_index \ 421 && (ifp)->if_index < in6_ifstatmax \ 422 && in6_ifstat && in6_ifstat[(ifp)->if_index]) { \ 423 in6_ifstat[(ifp)->if_index]->tag++; \ 424 } \ 425} while (0) 426 427extern struct ifqueue ip6intrq; /* IP6 packet input queue */ 428extern struct in6_addr zeroin6_addr; 429extern u_char inet6ctlerrmap[]; 430extern u_long in6_maxmtu; 431#if defined(__FreeBSD__) && __FreeBSD__ >= 3 432#ifdef MALLOC_DECLARE 433MALLOC_DECLARE(M_IPMADDR); 434#endif /* MALLOC_DECLARE */ 435#endif 436 437/* 438 * Macro for finding the internet address structure (in6_ifaddr) corresponding 439 * to a given interface (ifnet structure). 440 */ 441#if defined(__bsdi__) || (defined(__FreeBSD__) && __FreeBSD__ < 3) 442 443#define IFP_TO_IA6(ifp, ia) \ 444/* struct ifnet *ifp; */ \ 445/* struct in6_ifaddr *ia; */ \ 446do { \ 447 struct ifaddr *ifa; \ 448 for (ifa = (ifp)->if_addrlist; ifa; ifa = ifa->ifa_next) { \ 449 if (!ifa->ifa_addr) \ 450 continue; \ 451 if (ifa->ifa_addr->sa_family == AF_INET6) \ 452 break; \ 453 } \ 454 (ia) = (struct in6_ifaddr *)ifa; \ 455} while (0) 456 457#else 458 459#define IFP_TO_IA6(ifp, ia) \ 460/* struct ifnet *ifp; */ \ 461/* struct in6_ifaddr *ia; */ \ 462do { \ 463 struct ifaddr *ifa; \ 464 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ 465 if (!ifa->ifa_addr) \ 466 continue; \ 467 if (ifa->ifa_addr->sa_family == AF_INET6) \ 468 break; \ 469 } \ 470 (ia) = (struct in6_ifaddr *)ifa; \ 471} while (0) 472#endif /* _KERNEL */ 473 474#endif 475 476/* 477 * Multi-cast membership entry. One for each group/ifp that a PCB 478 * belongs to. 479 */ 480struct in6_multi_mship { 481 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 482 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 483}; 484 485struct in6_multi { 486 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 487 struct in6_addr in6m_addr; /* IP6 multicast address */ 488 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 489#if !(defined(__FreeBSD__) && __FreeBSD__ >= 3) 490 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 491#else 492 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */ 493#endif 494 u_int in6m_refcount; /* # membership claims by sockets */ 495 u_int in6m_state; /* state of the membership */ 496 u_int in6m_timer; /* MLD6 listener report timer */ 497}; 498 499#ifdef _KERNEL 500#if defined(__FreeBSD__) && __FreeBSD__ >= 3 501extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead; 502#endif 503 504/* 505 * Structure used by macros below to remember position when stepping through 506 * all of eht in6_multi records. 507 */ 508struct in6_multistep { 509 struct in6_ifaddr *i_ia; 510 struct in6_multi *i_in6m; 511}; 512 513/* 514 * Macros for looking up the in6_multi record for a given IP6 multicast 515 * address on a given interface. If no matching record is found, "in6m" 516 * returns NLL. 517 */ 518 519#if defined(__FreeBSD__) && __FreeBSD__ >= 3 520 521#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 522/* struct in6_addr addr; */ \ 523/* struct ifnet *ifp; */ \ 524/* struct in6_multi *in6m; */ \ 525do { \ 526 register struct ifmultiaddr *ifma; \ 527 for (ifma = (ifp)->if_multiaddrs.lh_first; ifma; \ 528 ifma = ifma->ifma_link.le_next) { \ 529 if (ifma->ifma_addr->sa_family == AF_INET6 \ 530 && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \ 531 &(addr))) \ 532 break; \ 533 } \ 534 (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \ 535} while(0) 536 537/* 538 * Macro to step through all of the in6_multi records, one at a time. 539 * The current position is remembered in "step", which the caller must 540 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 541 * and get the first record. Both macros return a NULL "in6m" when there 542 * are no remaining records. 543 */ 544#define IN6_NEXT_MULTI(step, in6m) \ 545/* struct in6_multistep step; */ \ 546/* struct in6_multi *in6m; */ \ 547do { \ 548 if (((in6m) = (step).i_in6m) != NULL) \ 549 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \ 550} while(0) 551 552#define IN6_FIRST_MULTI(step, in6m) \ 553/* struct in6_multistep step; */ \ 554/* struct in6_multi *in6m */ \ 555do { \ 556 (step).i_in6m = in6_multihead.lh_first; \ 557 IN6_NEXT_MULTI((step), (in6m)); \ 558} while(0) 559 560#else /* not FreeBSD3 */ 561 562#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 563/* struct in6_addr addr; */ \ 564/* struct ifnet *ifp; */ \ 565/* struct in6_multi *in6m; */ \ 566do { \ 567 register struct in6_ifaddr *ia; \ 568 \ 569 IFP_TO_IA6((ifp), ia); \ 570 if (ia == NULL) \ 571 (in6m) = NULL; \ 572 else \ 573 for ((in6m) = ia->ia6_multiaddrs.lh_first; \ 574 (in6m) != NULL && \ 575 !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \ 576 (in6m) = in6m->in6m_entry.le_next) \ 577 continue; \ 578} while (0) 579 580/* 581 * Macro to step through all of the in6_multi records, one at a time. 582 * The current position is remembered in "step", which the caller must 583 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 584 * and get the first record. Both macros return a NULL "in6m" when there 585 * are no remaining records. 586 */ 587#define IN6_NEXT_MULTI(step, in6m) \ 588/* struct in6_multistep step; */ \ 589/* struct in6_multi *in6m; */ \ 590do { \ 591 if (((in6m) = (step).i_in6m) != NULL) \ 592 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 593 else \ 594 while ((step).i_ia != NULL) { \ 595 (in6m) = (step).i_ia->ia6_multiaddrs.lh_first; \ 596 (step).i_ia = (step).i_ia->ia_next; \ 597 if ((in6m) != NULL) { \ 598 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 599 break; \ 600 } \ 601 } \ 602} while (0) 603 604#define IN6_FIRST_MULTI(step, in6m) \ 605/* struct in6_multistep step; */ \ 606/* struct in6_multi *in6m */ \ 607do { \ 608 (step).i_ia = in6_ifaddr; \ 609 (step).i_in6m = NULL; \ 610 IN6_NEXT_MULTI((step), (in6m)); \ 611} while (0) 612 613#endif /* not FreeBSD3 */ 614 615int in6_ifinit __P((struct ifnet *, 616 struct in6_ifaddr *, struct sockaddr_in6 *, int)); 617struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, 618 int *)); 619void in6_delmulti __P((struct in6_multi *)); 620void in6_ifscrub __P((struct ifnet *, struct in6_ifaddr *)); 621extern int in6_ifindex2scopeid __P((int)); 622extern int in6_mask2len __P((struct in6_addr *)); 623extern void in6_len2mask __P((struct in6_addr *, int)); 624#if !defined(__bsdi__) && !(defined(__FreeBSD__) && __FreeBSD__ < 3) 625int in6_control __P((struct socket *, 626 u_long, caddr_t, struct ifnet *, struct proc *)); 627#else 628int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *)); 629#endif 630void in6_savemkludge __P((struct in6_ifaddr *)); 631void in6_setmaxmtu __P((void)); 632void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); 633struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *)); 634struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, 635 struct in6_addr *)); 636char *ip6_sprintf __P((struct in6_addr *)); 637int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 638int in6_are_prefix_equal __P((struct in6_addr *p1, struct in6_addr *p2, 639 int len)); 640void in6_prefixlen2mask __P((struct in6_addr *maskp, int len)); 641int in6_prefix_ioctl __P((struct socket *so, u_long cmd, caddr_t data, 642 struct ifnet *ifp)); 643int in6_prefix_add_ifid __P((int iilen, struct in6_ifaddr *ia)); 644void in6_prefix_remove_ifid __P((int iilen, struct in6_ifaddr *ia)); 645#endif /* _KERNEL */ 646 647#endif /* _NETINET6_IN6_VAR_H_ */ 648