1 /* $OpenBSD: in6_var.h,v 1.32 2010/07/08 19:42:46 jsg Exp $ */ 2 /* $KAME: in6_var.h,v 1.55 2001/02/16 12:49:45 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. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 * 61 * @(#)in_var.h 8.1 (Berkeley) 6/10/93 62 */ 63 64 #ifndef _NETINET6_IN6_VAR_H_ 65 #define _NETINET6_IN6_VAR_H_ 66 67 /* 68 * Interface address, Internet version. One of these structures 69 * is allocated for each interface with an Internet address. 70 * The ifaddr structure contains the protocol-independent part 71 * of the structure and is assumed to be first. 72 */ 73 74 /* 75 * pltime/vltime are just for future reference (required to implements 2 76 * hour rule for hosts). they should never be modified by nd6_timeout or 77 * anywhere else. 78 * userland -> kernel: accept pltime/vltime 79 * kernel -> userland: throw up everything 80 * in kernel: modify preferred/expire only 81 */ 82 struct in6_addrlifetime { 83 time_t ia6t_expire; /* valid lifetime expiration time */ 84 time_t ia6t_preferred; /* preferred lifetime expiration time */ 85 u_int32_t ia6t_vltime; /* valid lifetime */ 86 u_int32_t ia6t_pltime; /* prefix lifetime */ 87 }; 88 89 struct nd_ifinfo; 90 struct in6_ifextra { 91 struct in6_ifstat *in6_ifstat; 92 struct icmp6_ifstat *icmp6_ifstat; 93 struct nd_ifinfo *nd_ifinfo; 94 int nprefixes; 95 int ndefrouters; 96 }; 97 98 struct in6_ifaddr { 99 struct ifaddr ia_ifa; /* protocol-independent info */ 100 #define ia_ifp ia_ifa.ifa_ifp 101 #define ia_flags ia_ifa.ifa_flags 102 struct sockaddr_in6 ia_addr; /* interface address */ 103 struct sockaddr_in6 ia_net; /* network number of interface */ 104 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 105 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 106 u_int32_t ia_plen; /* prefix length */ 107 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 108 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; 109 /* list of multicast addresses */ 110 int ia6_flags; 111 112 struct in6_addrlifetime ia6_lifetime; 113 time_t ia6_createtime; /* the creation time of this address, which is 114 * currently used for temporary addresses only. 115 */ 116 time_t ia6_updatetime; 117 118 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 119 struct nd_prefix *ia6_ndpr; 120 121 /* multicast addresses joined from the kernel */ 122 LIST_HEAD(, in6_multi_mship) ia6_memberships; 123 }; 124 125 /* 126 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 127 */ 128 struct in6_ifstat { 129 u_int64_t ifs6_in_receive; /* # of total input datagram */ 130 u_int64_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 131 u_int64_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 132 u_int64_t ifs6_in_noroute; /* # of datagrams with no route */ 133 u_int64_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 134 u_int64_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 135 /* NOTE: increment on final dst if */ 136 u_int64_t ifs6_in_truncated; /* # of truncated datagrams */ 137 u_int64_t ifs6_in_discard; /* # of discarded datagrams */ 138 /* NOTE: fragment timeout is not here */ 139 u_int64_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 140 /* NOTE: increment on final dst if */ 141 u_int64_t ifs6_out_forward; /* # of datagrams forwarded */ 142 /* NOTE: increment on outgoing if */ 143 u_int64_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 144 /* NOTE: does not include forwrads */ 145 u_int64_t ifs6_out_discard; /* # of discarded datagrams */ 146 u_int64_t ifs6_out_fragok; /* # of datagrams fragmented */ 147 u_int64_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 148 u_int64_t ifs6_out_fragcreat; /* # of fragment datagrams */ 149 /* NOTE: this is # after fragment */ 150 u_int64_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 151 /* NOTE: increment on final dst if */ 152 u_int64_t ifs6_reass_ok; /* # of reassembled packets */ 153 /* NOTE: this is # after reass */ 154 /* NOTE: increment on final dst if */ 155 u_int64_t ifs6_reass_fail; /* # of reass failures */ 156 /* NOTE: may not be packet count */ 157 /* NOTE: increment on final dst if */ 158 u_int64_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 159 u_int64_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 160 }; 161 162 /* 163 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 164 * XXX: I'm not sure if this file is the right place for this structure... 165 */ 166 struct icmp6_ifstat { 167 /* 168 * Input statistics 169 */ 170 /* ipv6IfIcmpInMsgs, total # of input messages */ 171 u_int64_t ifs6_in_msg; 172 /* ipv6IfIcmpInErrors, # of input error messages */ 173 u_int64_t ifs6_in_error; 174 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 175 u_int64_t ifs6_in_dstunreach; 176 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 177 u_int64_t ifs6_in_adminprohib; 178 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 179 u_int64_t ifs6_in_timeexceed; 180 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 181 u_int64_t ifs6_in_paramprob; 182 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 183 u_int64_t ifs6_in_pkttoobig; 184 /* ipv6IfIcmpInEchos, # of input echo requests */ 185 u_int64_t ifs6_in_echo; 186 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 187 u_int64_t ifs6_in_echoreply; 188 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 189 u_int64_t ifs6_in_routersolicit; 190 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 191 u_int64_t ifs6_in_routeradvert; 192 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 193 u_int64_t ifs6_in_neighborsolicit; 194 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 195 u_int64_t ifs6_in_neighboradvert; 196 /* ipv6IfIcmpInRedirects, # of input redirects */ 197 u_int64_t ifs6_in_redirect; 198 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 199 u_int64_t ifs6_in_mldquery; 200 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 201 u_int64_t ifs6_in_mldreport; 202 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 203 u_int64_t ifs6_in_mlddone; 204 205 /* 206 * Output statistics. We should solve unresolved routing problem... 207 */ 208 /* ipv6IfIcmpOutMsgs, total # of output messages */ 209 u_int64_t ifs6_out_msg; 210 /* ipv6IfIcmpOutErrors, # of output error messages */ 211 u_int64_t ifs6_out_error; 212 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 213 u_int64_t ifs6_out_dstunreach; 214 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 215 u_int64_t ifs6_out_adminprohib; 216 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 217 u_int64_t ifs6_out_timeexceed; 218 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 219 u_int64_t ifs6_out_paramprob; 220 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 221 u_int64_t ifs6_out_pkttoobig; 222 /* ipv6IfIcmpOutEchos, # of output echo requests */ 223 u_int64_t ifs6_out_echo; 224 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 225 u_int64_t ifs6_out_echoreply; 226 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 227 u_int64_t ifs6_out_routersolicit; 228 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 229 u_int64_t ifs6_out_routeradvert; 230 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 231 u_int64_t ifs6_out_neighborsolicit; 232 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 233 u_int64_t ifs6_out_neighboradvert; 234 /* ipv6IfIcmpOutRedirects, # of output redirects */ 235 u_int64_t ifs6_out_redirect; 236 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 237 u_int64_t ifs6_out_mldquery; 238 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 239 u_int64_t ifs6_out_mldreport; 240 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 241 u_int64_t ifs6_out_mlddone; 242 }; 243 244 struct in6_ifreq { 245 char ifr_name[IFNAMSIZ]; 246 union { 247 struct sockaddr_in6 ifru_addr; 248 struct sockaddr_in6 ifru_dstaddr; 249 short ifru_flags; 250 int ifru_flags6; 251 int ifru_metric; 252 caddr_t ifru_data; 253 struct in6_addrlifetime ifru_lifetime; 254 struct in6_ifstat ifru_stat; 255 struct icmp6_ifstat ifru_icmp6stat; 256 } ifr_ifru; 257 }; 258 259 struct in6_aliasreq { 260 char ifra_name[IFNAMSIZ]; 261 struct sockaddr_in6 ifra_addr; 262 struct sockaddr_in6 ifra_dstaddr; 263 struct sockaddr_in6 ifra_prefixmask; 264 int ifra_flags; 265 struct in6_addrlifetime ifra_lifetime; 266 }; 267 268 /* prefix type macro */ 269 #define IN6_PREFIX_ND 1 270 #define IN6_PREFIX_RR 2 271 272 /* 273 * prefix related flags passed between kernel(NDP related part) and 274 * user land command(ifconfig) and daemon(rtadvd). 275 */ 276 struct prf_ra { 277 u_int onlink : 1; 278 u_int autonomous : 1; 279 u_int router : 1; 280 u_int reserved : 5; 281 }; 282 283 struct in6_prflags { 284 struct prf_ra 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_int decrvalid : 1; 290 u_int decrprefd : 1; 291 u_int 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_int onlink : 1; 330 u_int autonomous : 1; 331 u_int 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_prlist) 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 #define IN6_IFF_PRIVACY 0x80 /* RFC 4941 temporary address */ 442 443 /* do not input/output */ 444 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 445 446 #ifdef _KERNEL 447 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 448 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 449 #endif 450 451 #ifdef _KERNEL 452 extern struct in6_ifaddr *in6_ifaddr; 453 454 extern struct icmp6stat icmp6stat; 455 #define in6_ifstat_inc(ifp, tag) \ 456 do { \ 457 if (ifp) \ 458 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 459 } while (0) 460 461 extern struct ifqueue ip6intrq; /* IP6 packet input queue */ 462 extern struct in6_addr zeroin6_addr; 463 extern u_char inet6ctlerrmap[]; 464 extern unsigned long in6_maxmtu; 465 466 /* 467 * Macro for finding the internet address structure (in6_ifaddr) corresponding 468 * to a given interface (ifnet structure). 469 */ 470 #define IFP_TO_IA6(ifp, ia) \ 471 /* struct ifnet *ifp; */ \ 472 /* struct in6_ifaddr *ia; */ \ 473 do { \ 474 struct ifaddr *ifa; \ 475 TAILQ_FOREACH(ifa, &(ifp)->if_addrlist, ifa_list) { \ 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 (0) 483 #endif /* _KERNEL */ 484 485 /* 486 * Multi-cast membership entry. One for each group/ifp that a PCB 487 * belongs to. 488 */ 489 struct in6_multi_mship { 490 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 491 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 492 }; 493 494 struct in6_multi { 495 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 496 struct in6_addr in6m_addr; /* IP6 multicast address */ 497 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 498 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 499 u_int in6m_refcount; /* # membership claims by sockets */ 500 u_int in6m_state; /* state of the membership */ 501 u_int in6m_timer; /* MLD6 listener report timer */ 502 }; 503 504 #ifdef _KERNEL 505 /* 506 * Structure used by macros below to remember position when stepping through 507 * all of the in6_multi records. 508 */ 509 struct in6_multistep { 510 struct in6_ifaddr *i_ia; 511 struct in6_multi *i_in6m; 512 }; 513 514 /* 515 * Macros for looking up the in6_multi record for a given IP6 multicast 516 * address on a given interface. If no matching record is found, "in6m" 517 * returns NLL. 518 */ 519 520 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 521 /* struct in6_addr addr; */ \ 522 /* struct ifnet *ifp; */ \ 523 /* struct in6_multi *in6m; */ \ 524 do { \ 525 struct in6_ifaddr *ia; \ 526 \ 527 IFP_TO_IA6((ifp), ia); \ 528 if (ia == NULL) \ 529 (in6m) = NULL; \ 530 else \ 531 for ((in6m) = LIST_FIRST(&ia->ia6_multiaddrs); \ 532 (in6m) != LIST_END(&ia->ia6_multiaddrs) && \ 533 !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \ 534 (in6m) = LIST_NEXT((in6m), in6m_entry)) \ 535 continue; \ 536 } while (0) 537 538 /* 539 * Macro to step through all of the in6_multi records, one at a time. 540 * The current position is remembered in "step", which the caller must 541 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 542 * and get the first record. Both macros return a NULL "in6m" when there 543 * are no remaining records. 544 */ 545 #define IN6_NEXT_MULTI(step, in6m) \ 546 /* struct in6_multistep step; */ \ 547 /* struct in6_multi *in6m; */ \ 548 do { \ 549 if (((in6m) = (step).i_in6m) != NULL) \ 550 (step).i_in6m = LIST_NEXT((in6m), in6m_entry); \ 551 else \ 552 while ((step).i_ia != NULL) { \ 553 (in6m) = LIST_FIRST(&(step).i_ia->ia6_multiaddrs); \ 554 (step).i_ia = (step).i_ia->ia_next; \ 555 if ((in6m) != NULL) { \ 556 (step).i_in6m = LIST_NEXT((in6m), in6m_entry); \ 557 break; \ 558 } \ 559 } \ 560 } while (0) 561 562 #define IN6_FIRST_MULTI(step, in6m) \ 563 /* struct in6_multistep step; */ \ 564 /* struct in6_multi *in6m */ \ 565 do { \ 566 (step).i_ia = in6_ifaddr; \ 567 (step).i_in6m = NULL; \ 568 IN6_NEXT_MULTI((step), (in6m)); \ 569 } while (0) 570 571 struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, int *); 572 void in6_delmulti(struct in6_multi *); 573 struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *); 574 int in6_leavegroup(struct in6_multi_mship *); 575 int in6_mask2len(struct in6_addr *, u_char *); 576 int in6_control(struct socket *, u_long, caddr_t, struct ifnet *, 577 struct proc *); 578 int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, 579 struct in6_ifaddr *); 580 void in6_purgeaddr(struct ifaddr *); 581 int in6if_do_dad(struct ifnet *); 582 void in6_savemkludge(struct in6_ifaddr *); 583 void in6_setmaxmtu(void); 584 void *in6_domifattach(struct ifnet *); 585 void in6_domifdetach(struct ifnet *, void *); 586 void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *); 587 void in6_createmkludge(struct ifnet *); 588 void in6_purgemkludge(struct ifnet *); 589 struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int); 590 struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, struct in6_addr *); 591 struct in6_ifaddr *in6ifa_ifplocaladdr(const struct ifnet *, 592 const struct in6_addr *); 593 char *ip6_sprintf(struct in6_addr *); 594 int in6_addr2scopeid(struct ifnet *, struct in6_addr *); 595 int in6_matchlen(struct in6_addr *, struct in6_addr *); 596 int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int); 597 void in6_prefixlen2mask(struct in6_addr *, int); 598 void in6_purgeprefix(struct ifnet *); 599 void in6_ifaddloop(struct ifaddr *); 600 void in6_ifremloop(struct ifaddr *); 601 602 struct inpcb; 603 int in6_embedscope(struct in6_addr *, const struct sockaddr_in6 *, 604 struct inpcb *, struct ifnet **); 605 int in6_recoverscope(struct sockaddr_in6 *, const struct in6_addr *, 606 struct ifnet *); 607 void in6_clearscope(struct in6_addr *); 608 #endif /* _KERNEL */ 609 610 #endif /* _NETINET6_IN6_VAR_H_ */ 611