1 /* $NetBSD: in6_var.h,v 1.33 2002/11/02 07:30:56 perry Exp $ */ 2 /* $KAME: in6_var.h,v 1.81 2002/06/08 11:16:51 itojun 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: throw up everything 84 * in kernel: modify preferred/expire only 85 */ 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 */ 91 }; 92 93 struct nd_ifinfo; 94 struct in6_ifextra { 95 struct in6_ifstat *in6_ifstat; 96 struct icmp6_ifstat *icmp6_ifstat; 97 struct nd_ifinfo *nd_ifinfo; 98 }; 99 100 struct in6_ifaddr { 101 struct ifaddr ia_ifa; /* protocol-independent info */ 102 #define ia_ifp ia_ifa.ifa_ifp 103 #define ia_flags ia_ifa.ifa_flags 104 struct sockaddr_in6 ia_addr; /* interface address */ 105 struct sockaddr_in6 ia_net; /* network number of interface */ 106 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 107 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 108 u_int32_t ia_plen; /* prefix length */ 109 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 110 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; 111 /* list of multicast addresses */ 112 int ia6_flags; 113 114 struct in6_addrlifetime ia6_lifetime; 115 time_t ia6_createtime; /* the creation time of this address, which is 116 * currently used for temporary addresses only. 117 */ 118 time_t ia6_updatetime; 119 120 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 121 struct nd_prefix *ia6_ndpr; 122 123 /* multicast addresses joined from the kernel */ 124 LIST_HEAD(, in6_multi_mship) ia6_memberships; 125 }; 126 127 /* 128 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 129 */ 130 struct in6_ifstat { 131 u_quad_t ifs6_in_receive; /* # of total input datagram */ 132 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 133 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 134 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 135 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 136 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 137 /* NOTE: increment on final dst if */ 138 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 139 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 140 /* NOTE: fragment timeout is not here */ 141 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 142 /* NOTE: increment on final dst if */ 143 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 144 /* NOTE: increment on outgoing if */ 145 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 146 /* NOTE: does not include forwrads */ 147 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 148 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 149 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 150 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 151 /* NOTE: this is # after fragment */ 152 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 153 /* NOTE: increment on final dst if */ 154 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 155 /* NOTE: this is # after reass */ 156 /* NOTE: increment on final dst if */ 157 u_quad_t ifs6_reass_fail; /* # of reass failures */ 158 /* NOTE: may not be packet count */ 159 /* NOTE: increment on final dst if */ 160 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 161 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 162 }; 163 164 /* 165 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 166 * XXX: I'm not sure if this file is the right place for this structure... 167 */ 168 struct icmp6_ifstat { 169 /* 170 * Input statistics 171 */ 172 /* ipv6IfIcmpInMsgs, total # of input messages */ 173 u_quad_t ifs6_in_msg; 174 /* ipv6IfIcmpInErrors, # of input error messages */ 175 u_quad_t ifs6_in_error; 176 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 177 u_quad_t ifs6_in_dstunreach; 178 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 179 u_quad_t ifs6_in_adminprohib; 180 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 181 u_quad_t ifs6_in_timeexceed; 182 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 183 u_quad_t ifs6_in_paramprob; 184 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 185 u_quad_t ifs6_in_pkttoobig; 186 /* ipv6IfIcmpInEchos, # of input echo requests */ 187 u_quad_t ifs6_in_echo; 188 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 189 u_quad_t ifs6_in_echoreply; 190 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 191 u_quad_t ifs6_in_routersolicit; 192 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 193 u_quad_t ifs6_in_routeradvert; 194 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 195 u_quad_t ifs6_in_neighborsolicit; 196 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 197 u_quad_t ifs6_in_neighboradvert; 198 /* ipv6IfIcmpInRedirects, # of input redirects */ 199 u_quad_t ifs6_in_redirect; 200 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 201 u_quad_t ifs6_in_mldquery; 202 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 203 u_quad_t ifs6_in_mldreport; 204 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 205 u_quad_t ifs6_in_mlddone; 206 207 /* 208 * Output statistics. We should solve unresolved routing problem... 209 */ 210 /* ipv6IfIcmpOutMsgs, total # of output messages */ 211 u_quad_t ifs6_out_msg; 212 /* ipv6IfIcmpOutErrors, # of output error messages */ 213 u_quad_t ifs6_out_error; 214 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 215 u_quad_t ifs6_out_dstunreach; 216 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 217 u_quad_t ifs6_out_adminprohib; 218 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 219 u_quad_t ifs6_out_timeexceed; 220 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 221 u_quad_t ifs6_out_paramprob; 222 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 223 u_quad_t ifs6_out_pkttoobig; 224 /* ipv6IfIcmpOutEchos, # of output echo requests */ 225 u_quad_t ifs6_out_echo; 226 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 227 u_quad_t ifs6_out_echoreply; 228 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 229 u_quad_t ifs6_out_routersolicit; 230 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 231 u_quad_t ifs6_out_routeradvert; 232 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 233 u_quad_t ifs6_out_neighborsolicit; 234 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 235 u_quad_t ifs6_out_neighboradvert; 236 /* ipv6IfIcmpOutRedirects, # of output redirects */ 237 u_quad_t ifs6_out_redirect; 238 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 239 u_quad_t ifs6_out_mldquery; 240 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 241 u_quad_t ifs6_out_mldreport; 242 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 243 u_quad_t ifs6_out_mlddone; 244 }; 245 246 struct in6_ifreq { 247 char ifr_name[IFNAMSIZ]; 248 union { 249 struct sockaddr_in6 ifru_addr; 250 struct sockaddr_in6 ifru_dstaddr; 251 short ifru_flags; 252 int ifru_flags6; 253 int ifru_metric; 254 caddr_t ifru_data; 255 struct in6_addrlifetime ifru_lifetime; 256 struct in6_ifstat ifru_stat; 257 struct icmp6_ifstat ifru_icmp6stat; 258 } ifr_ifru; 259 }; 260 261 struct in6_aliasreq { 262 char ifra_name[IFNAMSIZ]; 263 struct sockaddr_in6 ifra_addr; 264 struct sockaddr_in6 ifra_dstaddr; 265 struct sockaddr_in6 ifra_prefixmask; 266 int ifra_flags; 267 struct in6_addrlifetime ifra_lifetime; 268 }; 269 270 /* prefix type macro */ 271 #define IN6_PREFIX_ND 1 272 #define IN6_PREFIX_RR 2 273 274 /* 275 * prefix related flags passed between kernel(NDP related part) and 276 * user land command(ifconfig) and daemon(rtadvd). 277 */ 278 struct in6_prflags { 279 struct prf_ra { 280 u_char onlink : 1; 281 u_char autonomous : 1; 282 u_char router : 1; 283 u_char reserved : 5; 284 } prf_ra; 285 u_char prf_reserved1; 286 u_short prf_reserved2; 287 /* want to put this on 4byte offset */ 288 struct prf_rr { 289 u_char decrvalid : 1; 290 u_char decrprefd : 1; 291 u_char reserved : 6; 292 } prf_rr; 293 u_char prf_reserved3; 294 u_short prf_reserved4; 295 }; 296 297 struct in6_prefixreq { 298 char ipr_name[IFNAMSIZ]; 299 u_char ipr_origin; 300 u_char ipr_plen; 301 u_int32_t ipr_vltime; 302 u_int32_t ipr_pltime; 303 struct in6_prflags ipr_flags; 304 struct sockaddr_in6 ipr_prefix; 305 }; 306 307 #define PR_ORIG_RA 0 308 #define PR_ORIG_RR 1 309 #define PR_ORIG_STATIC 2 310 #define PR_ORIG_KERNEL 3 311 312 #define ipr_raf_onlink ipr_flags.prf_ra.onlink 313 #define ipr_raf_auto ipr_flags.prf_ra.autonomous 314 315 #define ipr_statef_onlink ipr_flags.prf_state.onlink 316 317 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 318 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 319 320 struct in6_rrenumreq { 321 char irr_name[IFNAMSIZ]; 322 u_char irr_origin; 323 u_char irr_m_len; /* match len for matchprefix */ 324 u_char irr_m_minlen; /* minlen for matching prefix */ 325 u_char irr_m_maxlen; /* maxlen for matching prefix */ 326 u_char irr_u_uselen; /* uselen for adding prefix */ 327 u_char irr_u_keeplen; /* keeplen from matching prefix */ 328 struct irr_raflagmask { 329 u_char onlink : 1; 330 u_char autonomous : 1; 331 u_char reserved : 6; 332 } irr_raflagmask; 333 u_int32_t irr_vltime; 334 u_int32_t irr_pltime; 335 struct in6_prflags irr_flags; 336 struct sockaddr_in6 irr_matchprefix; 337 struct sockaddr_in6 irr_useprefix; 338 }; 339 340 #define irr_raf_mask_onlink irr_raflagmask.onlink 341 #define irr_raf_mask_auto irr_raflagmask.autonomous 342 #define irr_raf_mask_reserved irr_raflagmask.reserved 343 344 #define irr_raf_onlink irr_flags.prf_ra.onlink 345 #define irr_raf_auto irr_flags.prf_ra.autonomous 346 347 #define irr_statef_onlink irr_flags.prf_state.onlink 348 349 #define irr_rrf irr_flags.prf_rr 350 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 351 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 352 353 /* 354 * Given a pointer to an in6_ifaddr (ifaddr), 355 * return a pointer to the addr as a sockaddr_in6 356 */ 357 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 358 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 359 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 360 #define IA6_SIN6(ia) (&((ia)->ia_addr)) 361 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 362 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 363 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 364 365 #ifdef _KERNEL 366 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 367 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 368 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 369 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 370 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 371 #endif 372 373 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 374 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 375 376 #ifdef _KERNEL 377 /* 378 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 379 * we do not shift numbers for binary compatibility. 380 */ 381 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 382 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 383 #endif 384 385 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 386 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 387 388 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 389 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 390 391 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 392 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 393 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 394 395 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 396 397 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 398 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) 399 #ifdef _KERNEL 400 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 401 #endif 402 #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 403 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 404 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 405 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 406 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 407 408 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 409 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 410 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 411 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 412 413 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 414 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 415 416 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 417 418 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 419 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 420 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 421 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 422 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 423 struct in6_rrenumreq) /* change */ 424 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 425 struct in6_rrenumreq) /* set global */ 426 427 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 428 struct sioc_sg_req6) /* get s,g pkt cnt */ 429 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 430 struct sioc_mif_req6) /* get pkt cnt per if */ 431 432 #define IN6_IFF_ANYCAST 0x01 /* anycast address */ 433 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 434 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 435 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 436 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 437 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 438 * (used only at first SIOC* call) 439 */ 440 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 441 442 /* do not input/output */ 443 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 444 445 #ifdef _KERNEL 446 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 447 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 448 #endif 449 450 #ifdef _KERNEL 451 extern struct in6_ifaddr *in6_ifaddr; 452 453 extern struct icmp6stat icmp6stat; 454 #define in6_ifstat_inc(ifp, tag) \ 455 do { \ 456 if (ifp) \ 457 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 458 } while (/*CONSTCOND*/ 0) 459 460 extern struct ifqueue ip6intrq; /* IP6 packet input queue */ 461 extern struct in6_addr zeroin6_addr; 462 extern u_char inet6ctlerrmap[]; 463 extern unsigned long in6_maxmtu; 464 465 /* 466 * Macro for finding the internet address structure (in6_ifaddr) corresponding 467 * to a given interface (ifnet structure). 468 */ 469 470 #define IFP_TO_IA6(ifp, ia) \ 471 /* struct ifnet *ifp; */ \ 472 /* struct in6_ifaddr *ia; */ \ 473 do { \ 474 struct ifaddr *ifa; \ 475 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ 476 if (!ifa->ifa_addr) \ 477 continue; \ 478 if (ifa->ifa_addr->sa_family == AF_INET6) \ 479 break; \ 480 } \ 481 (ia) = (struct in6_ifaddr *)ifa; \ 482 } while (/*CONSTCOND*/ 0) 483 484 #endif /* _KERNEL */ 485 486 /* 487 * Multi-cast membership entry. One for each group/ifp that a PCB 488 * belongs to. 489 */ 490 struct in6_multi_mship { 491 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 492 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 493 }; 494 495 struct in6_multi { 496 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 497 struct in6_addr in6m_addr; /* IP6 multicast address */ 498 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 499 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 500 u_int in6m_refcount; /* # membership claims by sockets */ 501 u_int in6m_state; /* state of the membership */ 502 u_int in6m_timer; /* MLD6 listener report timer */ 503 }; 504 505 #ifdef _KERNEL 506 507 /* 508 * Structure used by macros below to remember position when stepping through 509 * all of the in6_multi records. 510 */ 511 struct in6_multistep { 512 struct in6_ifaddr *i_ia; 513 struct in6_multi *i_in6m; 514 }; 515 516 /* 517 * Macros for looking up the in6_multi record for a given IP6 multicast 518 * address on a given interface. If no matching record is found, "in6m" 519 * returns NLL. 520 */ 521 522 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 523 /* struct in6_addr addr; */ \ 524 /* struct ifnet *ifp; */ \ 525 /* struct in6_multi *in6m; */ \ 526 do { \ 527 struct in6_ifaddr *ia; \ 528 \ 529 IFP_TO_IA6((ifp), ia); \ 530 if (ia == NULL) \ 531 (in6m) = NULL; \ 532 else \ 533 for ((in6m) = ia->ia6_multiaddrs.lh_first; \ 534 (in6m) != NULL && \ 535 !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \ 536 (in6m) = in6m->in6m_entry.le_next) \ 537 continue; \ 538 } while (/*CONSTCOND*/ 0) 539 540 /* 541 * Macro to step through all of the in6_multi records, one at a time. 542 * The current position is remembered in "step", which the caller must 543 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 544 * and get the first record. Both macros return a NULL "in6m" when there 545 * are no remaining records. 546 */ 547 #define IN6_NEXT_MULTI(step, in6m) \ 548 /* struct in6_multistep step; */ \ 549 /* struct in6_multi *in6m; */ \ 550 do { \ 551 if (((in6m) = (step).i_in6m) != NULL) \ 552 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 553 else \ 554 while ((step).i_ia != NULL) { \ 555 (in6m) = (step).i_ia->ia6_multiaddrs.lh_first; \ 556 (step).i_ia = (step).i_ia->ia_next; \ 557 if ((in6m) != NULL) { \ 558 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 559 break; \ 560 } \ 561 } \ 562 } while (/*CONSTCOND*/ 0) 563 564 #define IN6_FIRST_MULTI(step, in6m) \ 565 /* struct in6_multistep step; */ \ 566 /* struct in6_multi *in6m */ \ 567 do { \ 568 (step).i_ia = in6_ifaddr; \ 569 (step).i_in6m = NULL; \ 570 IN6_NEXT_MULTI((step), (in6m)); \ 571 } while (/*CONSTCOND*/ 0) 572 573 struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, 574 int *)); 575 void in6_delmulti __P((struct in6_multi *)); 576 struct in6_multi_mship *in6_joingroup __P((struct ifnet *, struct in6_addr *, 577 int *)); 578 int in6_leavegroup __P((struct in6_multi_mship *)); 579 int in6_ifindex2scopeid __P((int)); 580 int in6_mask2len __P((struct in6_addr *, u_char *)); 581 int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *, 582 struct proc *)); 583 int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *, 584 struct in6_ifaddr *)); 585 void in6_purgeaddr __P((struct ifaddr *)); 586 int in6if_do_dad __P((struct ifnet *)); 587 void in6_purgeif __P((struct ifnet *)); 588 void in6_savemkludge __P((struct in6_ifaddr *)); 589 void in6_setmaxmtu __P((void)); 590 void *in6_domifattach __P((struct ifnet *)); 591 void in6_domifdetach __P((struct ifnet *, void *)); 592 void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); 593 void in6_createmkludge __P((struct ifnet *)); 594 void in6_purgemkludge __P((struct ifnet *)); 595 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int)); 596 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *)); 597 char *ip6_sprintf __P((const struct in6_addr *)); 598 int in6_addr2scopeid __P((struct ifnet *, struct in6_addr *)); 599 int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 600 int in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int)); 601 void in6_prefixlen2mask __P((struct in6_addr *, int)); 602 void in6_purgeprefix __P((struct ifnet *)); 603 604 int in6_is_addr_deprecated __P((struct sockaddr_in6 *)); 605 struct in6pcb; 606 int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *, 607 struct in6pcb *, struct ifnet **)); 608 int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *, 609 struct ifnet *)); 610 void in6_clearscope __P((struct in6_addr *)); 611 #endif /* _KERNEL */ 612 613 #endif /* _NETINET6_IN6_VAR_H_ */ 614