in6_var.h revision 1.41
1 /* $NetBSD: in6_var.h,v 1.41 2006/01/21 00:15:36 rpaulo 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. 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 struct scope6_id *scope6_id; 95 }; 96 97 struct in6_ifaddr { 98 struct ifaddr ia_ifa; /* protocol-independent info */ 99 #define ia_ifp ia_ifa.ifa_ifp 100 #define ia_flags ia_ifa.ifa_flags 101 struct sockaddr_in6 ia_addr; /* interface address */ 102 struct sockaddr_in6 ia_net; /* network number of interface */ 103 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 104 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 105 u_int32_t ia_plen; /* prefix length */ 106 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 107 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; 108 /* list of multicast addresses */ 109 int ia6_flags; 110 111 struct in6_addrlifetime ia6_lifetime; 112 time_t ia6_createtime; /* the creation time of this address, which is 113 * currently used for temporary addresses only. 114 */ 115 time_t ia6_updatetime; 116 117 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 118 struct nd_prefix *ia6_ndpr; 119 120 /* multicast addresses joined from the kernel */ 121 LIST_HEAD(, in6_multi_mship) ia6_memberships; 122 }; 123 124 /* control structure to manage address selection policy */ 125 struct in6_addrpolicy { 126 struct sockaddr_in6 addr; /* prefix address */ 127 struct sockaddr_in6 addrmask; /* prefix mask */ 128 int preced; /* precedence */ 129 int label; /* matching label */ 130 u_quad_t use; /* statistics */ 131 }; 132 133 /* 134 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 135 */ 136 struct in6_ifstat { 137 u_quad_t ifs6_in_receive; /* # of total input datagram */ 138 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 139 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 140 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 141 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 142 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 143 /* NOTE: increment on final dst if */ 144 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 145 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 146 /* NOTE: fragment timeout is not here */ 147 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 148 /* NOTE: increment on final dst if */ 149 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 150 /* NOTE: increment on outgoing if */ 151 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 152 /* NOTE: does not include forwrads */ 153 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 154 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 155 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 156 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 157 /* NOTE: this is # after fragment */ 158 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 159 /* NOTE: increment on final dst if */ 160 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 161 /* NOTE: this is # after reass */ 162 /* NOTE: increment on final dst if */ 163 u_quad_t ifs6_reass_fail; /* # of reass failures */ 164 /* NOTE: may not be packet count */ 165 /* NOTE: increment on final dst if */ 166 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 167 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 168 }; 169 170 /* 171 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 172 * XXX: I'm not sure if this file is the right place for this structure... 173 */ 174 struct icmp6_ifstat { 175 /* 176 * Input statistics 177 */ 178 /* ipv6IfIcmpInMsgs, total # of input messages */ 179 u_quad_t ifs6_in_msg; 180 /* ipv6IfIcmpInErrors, # of input error messages */ 181 u_quad_t ifs6_in_error; 182 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 183 u_quad_t ifs6_in_dstunreach; 184 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 185 u_quad_t ifs6_in_adminprohib; 186 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 187 u_quad_t ifs6_in_timeexceed; 188 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 189 u_quad_t ifs6_in_paramprob; 190 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 191 u_quad_t ifs6_in_pkttoobig; 192 /* ipv6IfIcmpInEchos, # of input echo requests */ 193 u_quad_t ifs6_in_echo; 194 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 195 u_quad_t ifs6_in_echoreply; 196 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 197 u_quad_t ifs6_in_routersolicit; 198 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 199 u_quad_t ifs6_in_routeradvert; 200 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 201 u_quad_t ifs6_in_neighborsolicit; 202 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 203 u_quad_t ifs6_in_neighboradvert; 204 /* ipv6IfIcmpInRedirects, # of input redirects */ 205 u_quad_t ifs6_in_redirect; 206 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 207 u_quad_t ifs6_in_mldquery; 208 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 209 u_quad_t ifs6_in_mldreport; 210 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 211 u_quad_t ifs6_in_mlddone; 212 213 /* 214 * Output statistics. We should solve unresolved routing problem... 215 */ 216 /* ipv6IfIcmpOutMsgs, total # of output messages */ 217 u_quad_t ifs6_out_msg; 218 /* ipv6IfIcmpOutErrors, # of output error messages */ 219 u_quad_t ifs6_out_error; 220 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 221 u_quad_t ifs6_out_dstunreach; 222 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 223 u_quad_t ifs6_out_adminprohib; 224 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 225 u_quad_t ifs6_out_timeexceed; 226 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 227 u_quad_t ifs6_out_paramprob; 228 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 229 u_quad_t ifs6_out_pkttoobig; 230 /* ipv6IfIcmpOutEchos, # of output echo requests */ 231 u_quad_t ifs6_out_echo; 232 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 233 u_quad_t ifs6_out_echoreply; 234 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 235 u_quad_t ifs6_out_routersolicit; 236 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 237 u_quad_t ifs6_out_routeradvert; 238 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 239 u_quad_t ifs6_out_neighborsolicit; 240 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 241 u_quad_t ifs6_out_neighboradvert; 242 /* ipv6IfIcmpOutRedirects, # of output redirects */ 243 u_quad_t ifs6_out_redirect; 244 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 245 u_quad_t ifs6_out_mldquery; 246 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 247 u_quad_t ifs6_out_mldreport; 248 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 249 u_quad_t ifs6_out_mlddone; 250 }; 251 252 struct in6_ifreq { 253 char ifr_name[IFNAMSIZ]; 254 union { 255 struct sockaddr_in6 ifru_addr; 256 struct sockaddr_in6 ifru_dstaddr; 257 short ifru_flags; 258 int ifru_flags6; 259 int ifru_metric; 260 caddr_t ifru_data; 261 struct in6_addrlifetime ifru_lifetime; 262 struct in6_ifstat ifru_stat; 263 struct icmp6_ifstat ifru_icmp6stat; 264 } ifr_ifru; 265 }; 266 267 struct in6_aliasreq { 268 char ifra_name[IFNAMSIZ]; 269 struct sockaddr_in6 ifra_addr; 270 struct sockaddr_in6 ifra_dstaddr; 271 struct sockaddr_in6 ifra_prefixmask; 272 int ifra_flags; 273 struct in6_addrlifetime ifra_lifetime; 274 }; 275 276 /* prefix type macro */ 277 #define IN6_PREFIX_ND 1 278 #define IN6_PREFIX_RR 2 279 280 /* 281 * prefix related flags passed between kernel(NDP related part) and 282 * user land command(ifconfig) and daemon(rtadvd). 283 */ 284 struct prf_ra { 285 u_char onlink : 1; 286 u_char autonomous : 1; 287 u_char router : 1; 288 u_char reserved : 5; 289 }; 290 291 struct in6_prflags { 292 struct prf_ra prf_ra; 293 u_char prf_reserved1; 294 u_short prf_reserved2; 295 /* want to put this on 4byte offset */ 296 struct prf_rr { 297 u_char decrvalid : 1; 298 u_char decrprefd : 1; 299 u_char reserved : 6; 300 } prf_rr; 301 u_char prf_reserved3; 302 u_short prf_reserved4; 303 }; 304 305 struct in6_prefixreq { 306 char ipr_name[IFNAMSIZ]; 307 u_char ipr_origin; 308 u_char ipr_plen; 309 u_int32_t ipr_vltime; 310 u_int32_t ipr_pltime; 311 struct in6_prflags ipr_flags; 312 struct sockaddr_in6 ipr_prefix; 313 }; 314 315 #define PR_ORIG_RA 0 316 #define PR_ORIG_RR 1 317 #define PR_ORIG_STATIC 2 318 #define PR_ORIG_KERNEL 3 319 320 #define ipr_raf_onlink ipr_flags.prf_ra.onlink 321 #define ipr_raf_auto ipr_flags.prf_ra.autonomous 322 323 #define ipr_statef_onlink ipr_flags.prf_state.onlink 324 325 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 326 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 327 328 struct in6_rrenumreq { 329 char irr_name[IFNAMSIZ]; 330 u_char irr_origin; 331 u_char irr_m_len; /* match len for matchprefix */ 332 u_char irr_m_minlen; /* minlen for matching prefix */ 333 u_char irr_m_maxlen; /* maxlen for matching prefix */ 334 u_char irr_u_uselen; /* uselen for adding prefix */ 335 u_char irr_u_keeplen; /* keeplen from matching prefix */ 336 struct irr_raflagmask { 337 u_char onlink : 1; 338 u_char autonomous : 1; 339 u_char reserved : 6; 340 } irr_raflagmask; 341 u_int32_t irr_vltime; 342 u_int32_t irr_pltime; 343 struct in6_prflags irr_flags; 344 struct sockaddr_in6 irr_matchprefix; 345 struct sockaddr_in6 irr_useprefix; 346 }; 347 348 #define irr_raf_mask_onlink irr_raflagmask.onlink 349 #define irr_raf_mask_auto irr_raflagmask.autonomous 350 #define irr_raf_mask_reserved irr_raflagmask.reserved 351 352 #define irr_raf_onlink irr_flags.prf_ra.onlink 353 #define irr_raf_auto irr_flags.prf_ra.autonomous 354 355 #define irr_statef_onlink irr_flags.prf_state.onlink 356 357 #define irr_rrf irr_flags.prf_rr 358 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 359 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 360 361 /* 362 * Given a pointer to an in6_ifaddr (ifaddr), 363 * return a pointer to the addr as a sockaddr_in6 364 */ 365 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 366 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 367 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 368 #define IA6_SIN6(ia) (&((ia)->ia_addr)) 369 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 370 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 371 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 372 373 #ifdef _KERNEL 374 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 375 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 376 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 377 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 378 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 379 #endif 380 381 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 382 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 383 384 #ifdef _KERNEL 385 /* 386 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 387 * we do not shift numbers for binary compatibility. 388 */ 389 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 390 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 391 #endif 392 393 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 394 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 395 396 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 397 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 398 399 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 400 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 401 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 402 403 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 404 405 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 406 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) 407 #ifdef _KERNEL 408 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 409 #endif 410 #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 411 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 412 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 413 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 414 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 415 416 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 417 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 418 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 419 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 420 421 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 422 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 423 424 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 425 426 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 427 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 428 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 429 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 430 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 431 struct in6_rrenumreq) /* change */ 432 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 433 struct in6_rrenumreq) /* set global */ 434 435 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 436 struct sioc_sg_req6) /* get s,g pkt cnt */ 437 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 438 struct sioc_mif_req6) /* get pkt cnt per if */ 439 #define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy) 440 #define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy) 441 442 #define IN6_IFF_ANYCAST 0x01 /* anycast address */ 443 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 444 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 445 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 446 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 447 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 448 * (used only at first SIOC* call) 449 */ 450 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 451 452 /* do not input/output */ 453 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 454 455 #ifdef _KERNEL 456 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 457 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 458 #endif 459 460 #ifdef _KERNEL 461 MALLOC_DECLARE(M_IP6OPT); 462 463 extern struct in6_ifaddr *in6_ifaddr; 464 465 extern struct icmp6stat icmp6stat; 466 #define in6_ifstat_inc(ifp, tag) \ 467 do { \ 468 if (ifp) \ 469 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 470 } while (/*CONSTCOND*/ 0) 471 472 extern struct ifqueue ip6intrq; /* IP6 packet input queue */ 473 extern struct in6_addr zeroin6_addr; 474 extern u_char inet6ctlerrmap[]; 475 extern unsigned long in6_maxmtu; 476 477 /* 478 * Macro for finding the internet address structure (in6_ifaddr) corresponding 479 * to a given interface (ifnet structure). 480 */ 481 482 #define IFP_TO_IA6(ifp, ia) \ 483 /* struct ifnet *ifp; */ \ 484 /* struct in6_ifaddr *ia; */ \ 485 do { \ 486 struct ifaddr *_ifa; \ 487 for (_ifa = (ifp)->if_addrlist.tqh_first; _ifa; _ifa = _ifa->ifa_list.tqe_next) { \ 488 if (!_ifa->ifa_addr) \ 489 continue; \ 490 if (_ifa->ifa_addr->sa_family == AF_INET6) \ 491 break; \ 492 } \ 493 (ia) = (struct in6_ifaddr *)_ifa; \ 494 } while (/*CONSTCOND*/ 0) 495 496 #endif /* _KERNEL */ 497 498 /* 499 * Multi-cast membership entry. One for each group/ifp that a PCB 500 * belongs to. 501 */ 502 struct in6_multi_mship { 503 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 504 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 505 }; 506 507 struct in6_multi { 508 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 509 struct in6_addr in6m_addr; /* IP6 multicast address */ 510 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 511 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 512 u_int in6m_refcount; /* # membership claims by sockets */ 513 u_int in6m_state; /* state of the membership */ 514 u_int in6m_timer; /* MLD6 listener report timer */ 515 }; 516 517 #ifdef _KERNEL 518 519 /* 520 * Structure used by macros below to remember position when stepping through 521 * all of the in6_multi records. 522 */ 523 struct in6_multistep { 524 struct in6_ifaddr *i_ia; 525 struct in6_multi *i_in6m; 526 }; 527 528 /* 529 * Macros for looking up the in6_multi record for a given IP6 multicast 530 * address on a given interface. If no matching record is found, "in6m" 531 * returns NLL. 532 */ 533 534 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 535 /* struct in6_addr addr; */ \ 536 /* struct ifnet *ifp; */ \ 537 /* struct in6_multi *in6m; */ \ 538 do { \ 539 struct in6_ifaddr *_ia; \ 540 \ 541 IFP_TO_IA6((ifp), _ia); \ 542 if (_ia == NULL) \ 543 (in6m) = NULL; \ 544 else \ 545 for ((in6m) = _ia->ia6_multiaddrs.lh_first; \ 546 (in6m) != NULL && \ 547 !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \ 548 (in6m) = (in6m)->in6m_entry.le_next) \ 549 continue; \ 550 } while (/*CONSTCOND*/ 0) 551 552 /* 553 * Macro to step through all of the in6_multi records, one at a time. 554 * The current position is remembered in "step", which the caller must 555 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 556 * and get the first record. Both macros return a NULL "in6m" when there 557 * are no remaining records. 558 */ 559 #define IN6_NEXT_MULTI(step, in6m) \ 560 /* struct in6_multistep step; */ \ 561 /* struct in6_multi *in6m; */ \ 562 do { \ 563 if (((in6m) = (step).i_in6m) != NULL) \ 564 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 565 else \ 566 while ((step).i_ia != NULL) { \ 567 (in6m) = (step).i_ia->ia6_multiaddrs.lh_first; \ 568 (step).i_ia = (step).i_ia->ia_next; \ 569 if ((in6m) != NULL) { \ 570 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 571 break; \ 572 } \ 573 } \ 574 } while (/*CONSTCOND*/ 0) 575 576 #define IN6_FIRST_MULTI(step, in6m) \ 577 /* struct in6_multistep step; */ \ 578 /* struct in6_multi *in6m */ \ 579 do { \ 580 (step).i_ia = in6_ifaddr; \ 581 (step).i_in6m = NULL; \ 582 IN6_NEXT_MULTI((step), (in6m)); \ 583 } while (/*CONSTCOND*/ 0) 584 585 struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, 586 int *)); 587 void in6_delmulti __P((struct in6_multi *)); 588 struct in6_multi_mship *in6_joingroup __P((struct ifnet *, struct in6_addr *, 589 int *)); 590 int in6_leavegroup __P((struct in6_multi_mship *)); 591 int in6_mask2len __P((struct in6_addr *, u_char *)); 592 int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *, 593 struct proc *)); 594 int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *, 595 struct in6_ifaddr *)); 596 void in6_purgeaddr __P((struct ifaddr *)); 597 int in6if_do_dad __P((struct ifnet *)); 598 void in6_purgeif __P((struct ifnet *)); 599 void in6_savemkludge __P((struct in6_ifaddr *)); 600 void in6_setmaxmtu __P((void)); 601 void *in6_domifattach __P((struct ifnet *)); 602 void in6_domifdetach __P((struct ifnet *, void *)); 603 void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); 604 void in6_createmkludge __P((struct ifnet *)); 605 void in6_purgemkludge __P((struct ifnet *)); 606 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int)); 607 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *)); 608 char *ip6_sprintf __P((const struct in6_addr *)); 609 int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 610 int in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int)); 611 void in6_prefixlen2mask __P((struct in6_addr *, int)); 612 void in6_purgeprefix __P((struct ifnet *)); 613 614 int in6_src_ioctl __P((u_long, caddr_t)); 615 int in6_is_addr_deprecated __P((struct sockaddr_in6 *)); 616 struct in6pcb; 617 #endif /* _KERNEL */ 618 619 #endif /* !_NETINET6_IN6_VAR_H_ */ 620
Indexes created Wed Sep 24 05:09:52 GMT 2025