1 /* $NetBSD: in6_var.h,v 1.108 2025/06/27 21:36:23 andvar 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 #include <sys/callout.h> 68 #include <sys/ioccom.h> 69 70 /* 71 * Interface address, Internet version. One of these structures 72 * is allocated for each interface with an Internet address. 73 * The ifaddr structure contains the protocol-independent part 74 * of the structure and is assumed to be first. 75 */ 76 77 /* 78 * pltime/vltime are just for future reference (required to implements 2 79 * hour rule for hosts). they should never be modified by nd6_timeout or 80 * anywhere else. 81 * userland -> kernel: accept pltime/vltime 82 * kernel -> userland: throw up everything 83 * in kernel: modify preferred/expire only 84 */ 85 struct in6_addrlifetime { 86 time_t ia6t_expire; /* valid lifetime expiration time */ 87 time_t ia6t_preferred; /* preferred lifetime expiration time */ 88 u_int32_t ia6t_vltime; /* valid lifetime */ 89 u_int32_t ia6t_pltime; /* prefix lifetime */ 90 }; 91 92 struct lltable; 93 struct nd_kifinfo; 94 struct in6_ifextra { 95 struct in6_ifstat *in6_ifstat; 96 struct icmp6_ifstat *icmp6_ifstat; 97 struct nd_kifinfo *nd_ifinfo; 98 struct scope6_id *scope6_id; 99 struct lltable *lltable; 100 }; 101 102 LIST_HEAD(in6_multihead, in6_multi); 103 struct in6_ifaddr { 104 struct ifaddr ia_ifa; /* protocol-independent info */ 105 #define ia_ifp ia_ifa.ifa_ifp 106 #define ia_flags ia_ifa.ifa_flags 107 struct sockaddr_in6 ia_addr; /* interface address */ 108 struct sockaddr_in6 ia_net; /* network number of interface */ 109 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 110 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 111 u_int32_t ia_plen; /* prefix length */ 112 /* DEPRECATED. Keep it to avoid breaking kvm(3) users */ 113 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 114 /* DEPRECATED. Keep it to avoid breaking kvm(3) users */ 115 struct in6_multihead _ia6_multiaddrs; 116 /* list of multicast addresses */ 117 int ia6_flags; 118 119 struct in6_addrlifetime ia6_lifetime; 120 time_t ia6_createtime; /* the creation time of this address, which is 121 * currently used for temporary addresses only. 122 */ 123 time_t ia6_updatetime; 124 125 /* multicast addresses joined from the kernel */ 126 LIST_HEAD(, in6_multi_mship) ia6_memberships; 127 128 #ifdef _KERNEL 129 struct pslist_entry ia6_pslist_entry; 130 #endif 131 }; 132 133 #ifdef _KERNEL 134 static __inline void 135 ia6_acquire(struct in6_ifaddr *ia, struct psref *psref) 136 { 137 138 KASSERT(ia != NULL); 139 ifa_acquire(&ia->ia_ifa, psref); 140 } 141 142 static __inline void 143 ia6_release(struct in6_ifaddr *ia, struct psref *psref) 144 { 145 146 if (ia == NULL) 147 return; 148 ifa_release(&ia->ia_ifa, psref); 149 } 150 #endif 151 152 /* control structure to manage address selection policy */ 153 struct in6_addrpolicy { 154 struct sockaddr_in6 addr; /* prefix address */ 155 struct sockaddr_in6 addrmask; /* prefix mask */ 156 int preced; /* precedence */ 157 int label; /* matching label */ 158 u_quad_t use; /* statistics */ 159 }; 160 161 /* 162 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 163 */ 164 struct in6_ifstat { 165 u_quad_t ifs6_in_receive; /* # of total input datagram */ 166 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 167 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 168 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 169 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 170 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 171 /* NOTE: increment on final dst if */ 172 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 173 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 174 /* NOTE: fragment timeout is not here */ 175 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 176 /* NOTE: increment on final dst if */ 177 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 178 /* NOTE: increment on outgoing if */ 179 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 180 /* NOTE: does not include forwards */ 181 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 182 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 183 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 184 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 185 /* NOTE: this is # after fragment */ 186 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 187 /* NOTE: increment on final dst if */ 188 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 189 /* NOTE: this is # after reass */ 190 /* NOTE: increment on final dst if */ 191 u_quad_t ifs6_reass_fail; /* # of reass failures */ 192 /* NOTE: may not be packet count */ 193 /* NOTE: increment on final dst if */ 194 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 195 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 196 }; 197 198 /* 199 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 200 * XXX: I'm not sure if this file is the right place for this structure... 201 */ 202 struct icmp6_ifstat { 203 /* 204 * Input statistics 205 */ 206 /* ipv6IfIcmpInMsgs, total # of input messages */ 207 u_quad_t ifs6_in_msg; 208 /* ipv6IfIcmpInErrors, # of input error messages */ 209 u_quad_t ifs6_in_error; 210 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 211 u_quad_t ifs6_in_dstunreach; 212 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 213 u_quad_t ifs6_in_adminprohib; 214 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 215 u_quad_t ifs6_in_timeexceed; 216 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 217 u_quad_t ifs6_in_paramprob; 218 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 219 u_quad_t ifs6_in_pkttoobig; 220 /* ipv6IfIcmpInEchos, # of input echo requests */ 221 u_quad_t ifs6_in_echo; 222 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 223 u_quad_t ifs6_in_echoreply; 224 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 225 u_quad_t ifs6_in_routersolicit; 226 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 227 u_quad_t ifs6_in_routeradvert; 228 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 229 u_quad_t ifs6_in_neighborsolicit; 230 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 231 u_quad_t ifs6_in_neighboradvert; 232 /* ipv6IfIcmpInRedirects, # of input redirects */ 233 u_quad_t ifs6_in_redirect; 234 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 235 u_quad_t ifs6_in_mldquery; 236 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 237 u_quad_t ifs6_in_mldreport; 238 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 239 u_quad_t ifs6_in_mlddone; 240 241 /* 242 * Output statistics. We should solve unresolved routing problem... 243 */ 244 /* ipv6IfIcmpOutMsgs, total # of output messages */ 245 u_quad_t ifs6_out_msg; 246 /* ipv6IfIcmpOutErrors, # of output error messages */ 247 u_quad_t ifs6_out_error; 248 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 249 u_quad_t ifs6_out_dstunreach; 250 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 251 u_quad_t ifs6_out_adminprohib; 252 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 253 u_quad_t ifs6_out_timeexceed; 254 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 255 u_quad_t ifs6_out_paramprob; 256 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 257 u_quad_t ifs6_out_pkttoobig; 258 /* ipv6IfIcmpOutEchos, # of output echo requests */ 259 u_quad_t ifs6_out_echo; 260 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 261 u_quad_t ifs6_out_echoreply; 262 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 263 u_quad_t ifs6_out_routersolicit; 264 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 265 u_quad_t ifs6_out_routeradvert; 266 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 267 u_quad_t ifs6_out_neighborsolicit; 268 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 269 u_quad_t ifs6_out_neighboradvert; 270 /* ipv6IfIcmpOutRedirects, # of output redirects */ 271 u_quad_t ifs6_out_redirect; 272 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 273 u_quad_t ifs6_out_mldquery; 274 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 275 u_quad_t ifs6_out_mldreport; 276 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 277 u_quad_t ifs6_out_mlddone; 278 }; 279 280 /* 281 * If you make changes that change the size of in6_ifreq, 282 * make sure you fix compat/netinet6/in6_var.h 283 */ 284 struct in6_ifreq { 285 char ifr_name[IFNAMSIZ]; 286 union { 287 struct sockaddr_in6 ifru_addr; 288 struct sockaddr_in6 ifru_dstaddr; 289 short ifru_flags; 290 int ifru_flags6; 291 int ifru_metric; 292 void * ifru_data; 293 struct in6_addrlifetime ifru_lifetime; 294 struct in6_ifstat ifru_stat; 295 struct icmp6_ifstat ifru_icmp6stat; 296 } ifr_ifru; 297 }; 298 299 struct in6_aliasreq { 300 char ifra_name[IFNAMSIZ]; 301 struct sockaddr_in6 ifra_addr; 302 struct sockaddr_in6 ifra_dstaddr; 303 struct sockaddr_in6 ifra_prefixmask; 304 int ifra_flags; 305 struct in6_addrlifetime ifra_lifetime; 306 }; 307 308 /* 309 * Given a pointer to an in6_ifaddr (ifaddr), 310 * return a pointer to the addr as a sockaddr_in6 311 */ 312 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 313 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 314 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 315 #define IA6_SIN6(ia) (&((ia)->ia_addr)) 316 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 317 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 318 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 319 320 #ifdef _KERNEL 321 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 322 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 323 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 324 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 325 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 326 #endif 327 328 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 329 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 330 331 #ifdef _KERNEL 332 /* 333 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 334 * we do not shift numbers for binary compatibility. 335 */ 336 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 337 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 338 #endif 339 340 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 341 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 342 343 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 344 /* 26 was OSIOCAIFADDR_IN6 */ 345 346 /* 70 was OSIOCSIFPHYADDR_IN6 */ 347 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 348 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 349 350 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 351 352 /* 353 * 74 was SIOCGDRLST_IN6 354 * 75 was SIOCGPRLST_IN6 355 * 76 was OSIOCGIFINFO_IN6 356 * 77 was SIOCSNDFLUSH_IN6 357 */ 358 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 359 /* 360 * 79 was SIOCSPFXFLUSH_IN6 361 * 80 was SIOCSRTRFLUSH_IN6 362 * 81 was SIOCGIFALIFETIME_IN6 363 */ 364 #if 0 365 /* withdrawn - do not reuse number 82 */ 366 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 367 #endif 368 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 369 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 370 371 /* 372 * 85 was SIOCSDEFIFACE_IN6 373 * 86 was SIOCGDEFIFACE_IN6 374 * 87 was OSIOCSIFINFO_FLAGS 375 * 100 was SIOCSIFPREFIX_IN6 376 * 101 was SIOCGIFPREFIX_IN6 377 * 102 was SIOCDIFPREFIX_IN6 378 * 103 was SIOCAIFPREFIX_IN6 379 * 104 was SIOCCIFPREFIX_IN6 380 * 105 was SIOCSGIFPREFIX_IN6 381 */ 382 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 106, struct in6_ifreq) 383 #define SIOCAIFADDR_IN6 _IOW('i', 107, struct in6_aliasreq) 384 /* 108 was OSIOCGIFINFO_IN6_90 385 * 109 was OSIOCSIFINFO_IN6_90 */ 386 #define SIOCSIFPHYADDR_IN6 _IOW('i', 110, struct in6_aliasreq) 387 /* 110 - 112 are defined in net/if_pppoe.h */ 388 #define SIOCGIFINFO_IN6 _IOWR('i', 113, struct in6_ndireq) 389 #define SIOCSIFINFO_IN6 _IOWR('i', 114, struct in6_ndireq) 390 #define SIOCSIFINFO_FLAGS _IOWR('i', 115, struct in6_ndireq) 391 392 /* XXX: Someone decided to switch to 'u' here for unknown reasons! */ 393 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 394 struct sioc_sg_req6) /* get s,g pkt cnt */ 395 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 396 struct sioc_mif_req6) /* get pkt cnt per if */ 397 #define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy) 398 #define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy) 399 400 #define IN6_IFF_ANYCAST 0x01 /* anycast address */ 401 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 402 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 403 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 404 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 405 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 406 * (used only at first SIOC* call) 407 */ 408 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 409 #define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ 410 411 #define IN6_IFFBITS \ 412 "\020\1ANYCAST\2TENTATIVE\3DUPLICATED\4DETACHED\5DEPRECATED\6NODAD" \ 413 "\7AUTOCONF\10TEMPORARY" 414 415 416 /* do not input/output */ 417 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 418 419 #ifdef _KERNEL 420 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 421 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 422 #endif 423 424 #ifdef _KERNEL 425 426 #include <sys/mutex.h> 427 #include <sys/pserialize.h> 428 429 #include <net/pktqueue.h> 430 431 extern pktqueue_t *ip6_pktq; 432 433 MALLOC_DECLARE(M_IP6OPT); 434 435 extern struct pslist_head in6_ifaddr_list; 436 extern kmutex_t in6_ifaddr_lock; 437 438 #define IN6_ADDRLIST_ENTRY_INIT(__ia) \ 439 PSLIST_ENTRY_INIT((__ia), ia6_pslist_entry) 440 #define IN6_ADDRLIST_ENTRY_DESTROY(__ia) \ 441 PSLIST_ENTRY_DESTROY((__ia), ia6_pslist_entry) 442 #define IN6_ADDRLIST_READER_EMPTY() \ 443 (PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 444 ia6_pslist_entry) == NULL) 445 #define IN6_ADDRLIST_READER_FIRST() \ 446 PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 447 ia6_pslist_entry) 448 #define IN6_ADDRLIST_READER_NEXT(__ia) \ 449 PSLIST_READER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry) 450 #define IN6_ADDRLIST_READER_FOREACH(__ia) \ 451 PSLIST_READER_FOREACH((__ia), &in6_ifaddr_list, \ 452 struct in6_ifaddr, ia6_pslist_entry) 453 #define IN6_ADDRLIST_WRITER_INSERT_HEAD(__ia) \ 454 PSLIST_WRITER_INSERT_HEAD(&in6_ifaddr_list, (__ia), ia6_pslist_entry) 455 #define IN6_ADDRLIST_WRITER_REMOVE(__ia) \ 456 PSLIST_WRITER_REMOVE((__ia), ia6_pslist_entry) 457 #define IN6_ADDRLIST_WRITER_FOREACH(__ia) \ 458 PSLIST_WRITER_FOREACH((__ia), &in6_ifaddr_list, struct in6_ifaddr, \ 459 ia6_pslist_entry) 460 #define IN6_ADDRLIST_WRITER_FIRST() \ 461 PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 462 ia6_pslist_entry) 463 #define IN6_ADDRLIST_WRITER_NEXT(__ia) \ 464 PSLIST_WRITER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry) 465 #define IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia, __new) \ 466 PSLIST_WRITER_INSERT_AFTER((__ia), (__new), ia6_pslist_entry) 467 #define IN6_ADDRLIST_WRITER_EMPTY() \ 468 (PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 469 ia6_pslist_entry) == NULL) 470 #define IN6_ADDRLIST_WRITER_INSERT_TAIL(__new) \ 471 do { \ 472 if (IN6_ADDRLIST_WRITER_EMPTY()) { \ 473 IN6_ADDRLIST_WRITER_INSERT_HEAD((__new)); \ 474 } else { \ 475 struct in6_ifaddr *__ia; \ 476 IN6_ADDRLIST_WRITER_FOREACH(__ia) { \ 477 if (IN6_ADDRLIST_WRITER_NEXT(__ia) == NULL) { \ 478 IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia,\ 479 (__new)); \ 480 break; \ 481 } \ 482 } \ 483 } \ 484 } while (0) 485 486 #define in6_ifstat_inc(ifp, tag) \ 487 do { \ 488 if (ifp) \ 489 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 490 } while (/*CONSTCOND*/ 0) 491 492 extern const struct in6_addr zeroin6_addr; 493 extern const u_char inet6ctlerrmap[]; 494 extern bool in6_present; 495 #endif /* _KERNEL */ 496 497 /* 498 * Multi-cast membership entry. One for each group/ifp that a PCB 499 * belongs to. 500 */ 501 struct in6_multi_mship { 502 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 503 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 504 }; 505 506 struct in6_multi { 507 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 508 struct in6_addr in6m_addr; /* IP6 multicast address */ 509 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 510 /* DEPRECATED. Keep it to avoid breaking kvm(3) users */ 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 int in6m_timer; /* delay to send the 1st report */ 515 struct timeval in6m_timer_expire; /* when the timer expires */ 516 callout_t in6m_timer_ch; 517 }; 518 519 #define IN6M_TIMER_UNDEF -1 520 521 522 #ifdef _KERNEL 523 /* flags to in6_update_ifa */ 524 #define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */ 525 526 #if 0 527 /* 528 * Macros for looking up the in6_multi_mship record for a given IP6 multicast 529 * address on a given interface. If no matching record is found, "imm" 530 * returns NULL. 531 */ 532 static __inline struct in6_multi_mship * 533 in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp, 534 struct ip6_moptions *imop) 535 { 536 struct in6_multi_mship *imm; 537 538 LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) { 539 if (imm->i6mm_maddr->in6m_ifp != ifp) 540 continue; 541 if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr, 542 addr)) 543 break; 544 } 545 return imm; 546 } 547 548 #define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \ 549 /* struct in6_addr __addr; */ \ 550 /* struct ifnet *__ifp; */ \ 551 /* struct ip6_moptions *__imop */ \ 552 /* struct in6_multi_mship *__imm; */ \ 553 do { \ 554 (__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \ 555 } while (/*CONSTCOND*/ 0) 556 #endif 557 558 void in6_init(void); 559 560 void in6_multi_lock(int); 561 void in6_multi_unlock(void); 562 bool in6_multi_locked(int); 563 struct in6_multi * 564 in6_lookup_multi(const struct in6_addr *, const struct ifnet *); 565 bool in6_multi_group(const struct in6_addr *, const struct ifnet *); 566 void in6_purge_multi(struct ifnet *); 567 struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, 568 int *, int); 569 void in6_delmulti(struct in6_multi *); 570 void in6_delmulti_locked(struct in6_multi *); 571 void in6_lookup_and_delete_multi(const struct in6_addr *, 572 const struct ifnet *); 573 struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, 574 int *, int); 575 int in6_leavegroup(struct in6_multi_mship *); 576 int in6_mask2len(struct in6_addr *, u_char *); 577 int in6_control(struct socket *, u_long, void *, struct ifnet *); 578 int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, int); 579 void in6_purgeaddr(struct ifaddr *); 580 void in6_purgeif(struct ifnet *); 581 void *in6_domifattach(struct ifnet *); 582 void in6_domifdetach(struct ifnet *, void *); 583 void in6_ifremlocal(struct ifaddr *); 584 void in6_ifaddlocal(struct ifaddr *); 585 struct in6_ifaddr * 586 in6ifa_ifpforlinklocal(const struct ifnet *, int); 587 struct in6_ifaddr * 588 in6ifa_ifpforlinklocal_psref(const struct ifnet *, int, struct psref *); 589 struct in6_ifaddr * 590 in6ifa_ifpwithaddr(const struct ifnet *, const struct in6_addr *); 591 struct in6_ifaddr * 592 in6ifa_ifpwithaddr_psref(const struct ifnet *, const struct in6_addr *, 593 struct psref *); 594 struct in6_ifaddr *in6ifa_ifwithaddr(const struct in6_addr *, uint32_t); 595 struct ifaddr * 596 in6ifa_first_lladdr(const struct ifnet *); 597 struct ifaddr * 598 in6ifa_first_lladdr_psref(const struct ifnet *, struct psref *); 599 600 int in6_matchlen(struct in6_addr *, struct in6_addr *); 601 void in6_prefixlen2mask(struct in6_addr *, int); 602 void in6_purge_mcast_references(struct in6_multi *); 603 604 int ip6flow_fastforward(struct mbuf **); /* IPv6 fast forward routine */ 605 606 int in6_src_ioctl(u_long, void *); 607 int in6_is_addr_deprecated(struct sockaddr_in6 *); 608 struct in6pcb; 609 610 #define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable) 611 612 void in6_sysctl_multicast_setup(struct sysctllog **); 613 614 #endif /* _KERNEL */ 615 616 #endif /* !_NETINET6_IN6_VAR_H_ */ 617
Indexes created Sat Sep 20 22:09:52 GMT 2025