in6_var.h revision 72084
1/* $FreeBSD: head/sys/netinet6/in6_var.h 72084 2001-02-06 10:12:15Z phk $ */ 2/* $KAME: in6_var.h,v 1.33 2000/05/17 05:07:26 jinmei 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. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)in_var.h 8.1 (Berkeley) 6/10/93 66 */ 67 68#ifndef _NETINET6_IN6_VAR_H_ 69#define _NETINET6_IN6_VAR_H_ 70 71/* 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. 76 */ 77 78/* 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 81 * anywhere else. 82 * userland -> kernel: accept pltime/vltime 83 * kernel -> userland: throuw up everything 84 * in kernel: modify preferred/expire only 85 */ 86struct 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 */ 91}; 92 93struct in6_ifaddr { 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 */ 103 int ia6_flags; 104 105 struct in6_addrlifetime ia6_lifetime; /* NULL = infty */ 106 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */ 107}; 108 109/* 110 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 111 */ 112struct in6_ifstat { 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 */ 144}; 145 146/* 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... 149 */ 150struct icmp6_ifstat { 151 /* 152 * Input statistics 153 */ 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; 188 189 /* 190 * Output statistics. We should solve unresolved routing problem... 191 */ 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; 226}; 227 228struct in6_ifreq { 229 char ifr_name[IFNAMSIZ]; 230 union { 231 struct sockaddr_in6 ifru_addr; 232 struct sockaddr_in6 ifru_dstaddr; 233 short ifru_flags; 234 int ifru_flags6; 235 int ifru_metric; 236 caddr_t ifru_data; 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]; 241 } ifr_ifru; 242}; 243 244struct 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; 249 int ifra_flags; 250 struct in6_addrlifetime ifra_lifetime; 251}; 252 253/* prefix type macro */ 254#define IN6_PREFIX_ND 1 255#define IN6_PREFIX_RR 2 256 257/* 258 * prefix related flags passed between kernel(NDP related part) and 259 * user land command(ifconfig) and daemon(rtadvd). 260 */ 261struct in6_prflags { 262 struct prf_ra { 263 u_char onlink : 1; 264 u_char autonomous : 1; 265 u_char reserved : 6; 266 } prf_ra; 267 u_char prf_reserved1; 268 u_short prf_reserved2; 269 /* want to put this on 4byte offset */ 270 struct prf_rr { 271 u_char decrvalid : 1; 272 u_char decrprefd : 1; 273 u_char reserved : 6; 274 } prf_rr; 275 u_char prf_reserved3; 276 u_short prf_reserved4; 277}; 278 279struct in6_prefixreq { 280 char ipr_name[IFNAMSIZ]; 281 u_char ipr_origin; 282 u_char ipr_plen; 283 u_int32_t ipr_vltime; 284 u_int32_t ipr_pltime; 285 struct in6_prflags ipr_flags; 286 struct sockaddr_in6 ipr_prefix; 287}; 288 289#define PR_ORIG_RA 0 290#define PR_ORIG_RR 1 291#define PR_ORIG_STATIC 2 292#define PR_ORIG_KERNEL 3 293 294#define ipr_raf_onlink ipr_flags.prf_ra.onlink 295#define ipr_raf_auto ipr_flags.prf_ra.autonomous 296 297#define ipr_statef_onlink ipr_flags.prf_state.onlink 298 299#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 300#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 301 302struct in6_rrenumreq { 303 char irr_name[IFNAMSIZ]; 304 u_char irr_origin; 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 { 311 u_char onlink : 1; 312 u_char autonomous : 1; 313 u_char reserved : 6; 314 } irr_raflagmask; 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; 320}; 321 322#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 325 326#define irr_raf_onlink irr_flags.prf_ra.onlink 327#define irr_raf_auto irr_flags.prf_ra.autonomous 328 329#define irr_statef_onlink irr_flags.prf_state.onlink 330 331#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 334 335/* 336 * Given a pointer to an in6_ifaddr (ifaddr), 337 * return a pointer to the addr as a sockaddr_in6 338 */ 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) 346 347#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) 348 349#ifdef _KERNEL 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 ) 355#endif 356 357#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 358#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 359 360#ifdef _KERNEL 361/* 362 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 363 * we do not shift numbers for binary compatibility. 364 */ 365#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 366#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 367#endif 368 369#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 370#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 371 372#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 373#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 374 375#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) 378 379#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 380 381#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) 388 389#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) 393 394#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 395#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 396 397#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 398 399#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) 402 403#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 */ 411 412#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 */ 416 417#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 */ 422 423/* do not input/output */ 424#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 425 426#ifdef _KERNEL 427#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 428#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 429#endif 430 431#ifdef _KERNEL 432extern struct in6_ifaddr *in6_ifaddr; 433 434extern struct in6_ifstat **in6_ifstat; 435extern size_t in6_ifstatmax; 436extern struct icmp6stat icmp6stat; 437extern struct icmp6_ifstat **icmp6_ifstat; 438extern size_t icmp6_ifstatmax; 439#define in6_ifstat_inc(ifp, tag) \ 440do { \ 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++; \ 445 } \ 446} while (0) 447 448extern struct ifqueue ip6intrq; /* IP6 packet input queue */ 449extern struct in6_addr zeroin6_addr; 450extern u_char inet6ctlerrmap[]; 451extern unsigned long in6_maxmtu; 452#ifdef MALLOC_DECLARE 453MALLOC_DECLARE(M_IPMADDR); 454#endif 455 456/* 457 * Macro for finding the internet address structure (in6_ifaddr) corresponding 458 * to a given interface (ifnet structure). 459 */ 460 461#define IFP_TO_IA6(ifp, ia) \ 462/* struct ifnet *ifp; */ \ 463/* struct in6_ifaddr *ia; */ \ 464do { \ 465 struct ifaddr *ifa; \ 466 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ 467 if (!ifa->ifa_addr) \ 468 continue; \ 469 if (ifa->ifa_addr->sa_family == AF_INET6) \ 470 break; \ 471 } \ 472 (ia) = (struct in6_ifaddr *)ifa; \ 473} while (0) 474 475#endif /* _KERNEL */ 476 477/* 478 * Multi-cast membership entry. One for each group/ifp that a PCB 479 * belongs to. 480 */ 481struct in6_multi_mship { 482 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 483 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 484}; 485 486struct in6_multi { 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 */ 494}; 495 496#ifdef _KERNEL 497extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead; 498 499/* 500 * Structure used by macros below to remember position when stepping through 501 * all of eht in6_multi records. 502 */ 503struct in6_multistep { 504 struct in6_ifaddr *i_ia; 505 struct in6_multi *i_in6m; 506}; 507 508/* 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" 511 * returns NLL. 512 */ 513 514#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 515/* struct in6_addr addr; */ \ 516/* struct ifnet *ifp; */ \ 517/* struct in6_multi *in6m; */ \ 518do { \ 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, \ 523 &(addr))) \ 524 break; \ 525 } \ 526 (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \ 527} while(0) 528 529/* 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. 535 */ 536#define IN6_NEXT_MULTI(step, in6m) \ 537/* struct in6_multistep step; */ \ 538/* struct in6_multi *in6m; */ \ 539do { \ 540 if (((in6m) = (step).i_in6m) != NULL) \ 541 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \ 542} while(0) 543 544#define IN6_FIRST_MULTI(step, in6m) \ 545/* struct in6_multistep step; */ \ 546/* struct in6_multi *in6m */ \ 547do { \ 548 (step).i_in6m = in6_multihead.lh_first; \ 549 IN6_NEXT_MULTI((step), (in6m)); \ 550} while(0) 551 552int in6_ifinit __P((struct ifnet *, 553 struct in6_ifaddr *, struct sockaddr_in6 *, int)); 554struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, 555 int *)); 556void in6_delmulti __P((struct in6_multi *)); 557void in6_ifscrub __P((struct ifnet *, struct in6_ifaddr *)); 558extern int in6_ifindex2scopeid __P((int)); 559extern int in6_mask2len __P((struct in6_addr *)); 560extern void in6_len2mask __P((struct in6_addr *, int)); 561int in6_control __P((struct socket *, 562 u_long, caddr_t, struct ifnet *, struct proc *)); 563void in6_purgeaddr __P((struct ifaddr *, struct ifnet *)); 564void in6_savemkludge __P((struct in6_ifaddr *)); 565void in6_setmaxmtu __P((void)); 566void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); 567void in6_purgemkludge __P((struct ifnet *)); 568struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int)); 569struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, 570 struct in6_addr *)); 571char *ip6_sprintf __P((struct in6_addr *)); 572int in6_addr2scopeid __P((struct ifnet *, struct in6_addr *)); 573int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 574int in6_are_prefix_equal __P((struct in6_addr *p1, struct in6_addr *p2, 575 int len)); 576void in6_prefixlen2mask __P((struct in6_addr *maskp, int len)); 577int in6_prefix_ioctl __P((struct socket *so, u_long cmd, caddr_t data, 578 struct ifnet *ifp)); 579int in6_prefix_add_ifid __P((int iilen, struct in6_ifaddr *ia)); 580void in6_prefix_remove_ifid __P((int iilen, struct in6_ifaddr *ia)); 581void in6_purgeprefix __P((struct ifnet *)); 582#endif /* _KERNEL */ 583 584#endif /* _NETINET6_IN6_VAR_H_ */ 585