in6_var.h revision 1.7
1 /* $NetBSD: in6_var.h,v 1.7 2000/02/01 22:52:11 thorpej Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1985, 1986, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by the University of 47 * California, Berkeley and its contributors. 48 * 4. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)in_var.h 8.1 (Berkeley) 6/10/93 65 */ 66 67 #ifndef _NETINET6_IN6_VAR_H_ 68 #define _NETINET6_IN6_VAR_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: throuw 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 in6_ifaddr { 93 struct ifaddr ia_ifa; /* protocol-independent info */ 94 #define ia_ifp ia_ifa.ifa_ifp 95 #define ia_flags ia_ifa.ifa_flags 96 struct sockaddr_in6 ia_addr; /* interface address */ 97 struct sockaddr_in6 ia_net; /* network number of interface */ 98 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 99 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 100 u_int32_t ia_plen; /* prefix length */ 101 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 102 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; 103 /* list of multicast addresses */ 104 int ia6_flags; 105 106 struct in6_addrlifetime ia6_lifetime; /* NULL = infty */ 107 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */ 108 }; 109 110 /* 111 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 112 */ 113 struct in6_ifstat { 114 u_quad_t ifs6_in_receive; /* # of total input datagram */ 115 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 116 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 117 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 118 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 119 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 120 /* NOTE: increment on final dst if */ 121 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 122 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 123 /* NOTE: fragment timeout is not here */ 124 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 125 /* NOTE: increment on final dst if */ 126 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 127 /* NOTE: increment on outgoing if */ 128 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 129 /* NOTE: does not include forwrads */ 130 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 131 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 132 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 133 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 134 /* NOTE: this is # after fragment */ 135 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 136 /* NOTE: increment on final dst if */ 137 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 138 /* NOTE: this is # after reass */ 139 /* NOTE: increment on final dst if */ 140 u_quad_t ifs6_reass_fail; /* # of reass failures */ 141 /* NOTE: may not be packet count */ 142 /* NOTE: increment on final dst if */ 143 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 144 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 145 }; 146 147 /* 148 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 149 * XXX: I'm not sure if this file is the right place for this structure... 150 */ 151 struct icmp6_ifstat { 152 /* 153 * Input statistics 154 */ 155 /* ipv6IfIcmpInMsgs, total # of input messages */ 156 u_quad_t ifs6_in_msg; 157 /* ipv6IfIcmpInErrors, # of input error messages */ 158 u_quad_t ifs6_in_error; 159 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 160 u_quad_t ifs6_in_dstunreach; 161 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 162 u_quad_t ifs6_in_adminprohib; 163 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 164 u_quad_t ifs6_in_timeexceed; 165 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 166 u_quad_t ifs6_in_paramprob; 167 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 168 u_quad_t ifs6_in_pkttoobig; 169 /* ipv6IfIcmpInEchos, # of input echo requests */ 170 u_quad_t ifs6_in_echo; 171 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 172 u_quad_t ifs6_in_echoreply; 173 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 174 u_quad_t ifs6_in_routersolicit; 175 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 176 u_quad_t ifs6_in_routeradvert; 177 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 178 u_quad_t ifs6_in_neighborsolicit; 179 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 180 u_quad_t ifs6_in_neighboradvert; 181 /* ipv6IfIcmpInRedirects, # of input redirects */ 182 u_quad_t ifs6_in_redirect; 183 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 184 u_quad_t ifs6_in_mldquery; 185 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 186 u_quad_t ifs6_in_mldreport; 187 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 188 u_quad_t ifs6_in_mlddone; 189 190 /* 191 * Output statistics. We should solve unresolved routing problem... 192 */ 193 /* ipv6IfIcmpOutMsgs, total # of output messages */ 194 u_quad_t ifs6_out_msg; 195 /* ipv6IfIcmpOutErrors, # of output error messages */ 196 u_quad_t ifs6_out_error; 197 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 198 u_quad_t ifs6_out_dstunreach; 199 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 200 u_quad_t ifs6_out_adminprohib; 201 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 202 u_quad_t ifs6_out_timeexceed; 203 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 204 u_quad_t ifs6_out_paramprob; 205 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 206 u_quad_t ifs6_out_pkttoobig; 207 /* ipv6IfIcmpOutEchos, # of output echo requests */ 208 u_quad_t ifs6_out_echo; 209 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 210 u_quad_t ifs6_out_echoreply; 211 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 212 u_quad_t ifs6_out_routersolicit; 213 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 214 u_quad_t ifs6_out_routeradvert; 215 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 216 u_quad_t ifs6_out_neighborsolicit; 217 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 218 u_quad_t ifs6_out_neighboradvert; 219 /* ipv6IfIcmpOutRedirects, # of output redirects */ 220 u_quad_t ifs6_out_redirect; 221 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 222 u_quad_t ifs6_out_mldquery; 223 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 224 u_quad_t ifs6_out_mldreport; 225 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 226 u_quad_t ifs6_out_mlddone; 227 }; 228 229 struct in6_ifreq { 230 char ifr_name[IFNAMSIZ]; 231 union { 232 struct sockaddr_in6 ifru_addr; 233 struct sockaddr_in6 ifru_dstaddr; 234 short ifru_flags; 235 int ifru_flags6; 236 int ifru_metric; 237 caddr_t ifru_data; 238 struct in6_addrlifetime ifru_lifetime; 239 struct in6_ifstat ifru_stat; 240 struct icmp6_ifstat ifru_icmp6stat; 241 } ifr_ifru; 242 }; 243 244 struct in6_aliasreq { 245 char ifra_name[IFNAMSIZ]; 246 struct sockaddr_in6 ifra_addr; 247 struct sockaddr_in6 ifra_dstaddr; 248 struct sockaddr_in6 ifra_prefixmask; 249 int ifra_flags; 250 struct in6_addrlifetime ifra_lifetime; 251 }; 252 253 /* prefix type macro */ 254 #define IN6_PREFIX_ND 1 255 #define IN6_PREFIX_RR 2 256 257 /* 258 * prefix related flags passed between kernel(NDP related part) and 259 * user land command(ifconfig) and daemon(rtadvd). 260 */ 261 struct in6_prflags { 262 struct prf_ra { 263 u_char onlink : 1; 264 u_char autonomous : 1; 265 u_char reserved : 6; 266 } prf_ra; 267 u_char prf_reserved1; 268 u_short prf_reserved2; 269 /* want to put this on 4byte offset */ 270 struct prf_rr { 271 u_char decrvalid : 1; 272 u_char decrprefd : 1; 273 u_char reserved : 6; 274 } prf_rr; 275 u_char prf_reserved3; 276 u_short prf_reserved4; 277 }; 278 279 struct in6_prefixreq { 280 char ipr_name[IFNAMSIZ]; 281 u_char ipr_origin; 282 u_char ipr_plen; 283 u_int32_t ipr_vltime; 284 u_int32_t ipr_pltime; 285 struct in6_prflags ipr_flags; 286 struct sockaddr_in6 ipr_prefix; 287 }; 288 289 #define PR_ORIG_RA 0 290 #define PR_ORIG_RR 1 291 #define PR_ORIG_STATIC 2 292 #define PR_ORIG_KERNEL 3 293 294 #define ipr_raf_onlink ipr_flags.prf_ra.onlink 295 #define ipr_raf_auto ipr_flags.prf_ra.autonomous 296 297 #define ipr_statef_onlink ipr_flags.prf_state.onlink 298 299 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 300 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 301 302 struct in6_rrenumreq { 303 char irr_name[IFNAMSIZ]; 304 u_char irr_origin; 305 u_char irr_m_len; /* match len for matchprefix */ 306 u_char irr_m_minlen; /* minlen for matching prefix */ 307 u_char irr_m_maxlen; /* maxlen for matching prefix */ 308 u_char irr_u_uselen; /* uselen for adding prefix */ 309 u_char irr_u_keeplen; /* keeplen from matching prefix */ 310 struct irr_raflagmask { 311 u_char onlink : 1; 312 u_char autonomous : 1; 313 u_char reserved : 6; 314 } irr_raflagmask; 315 u_int32_t irr_vltime; 316 u_int32_t irr_pltime; 317 struct in6_prflags irr_flags; 318 struct sockaddr_in6 irr_matchprefix; 319 struct sockaddr_in6 irr_useprefix; 320 }; 321 322 #define irr_raf_mask_onlink irr_raflagmask.onlink 323 #define irr_raf_mask_auto irr_raflagmask.autonomous 324 #define irr_raf_mask_reserved irr_raflagmask.reserved 325 326 #define irr_raf_onlink irr_flags.prf_ra.onlink 327 #define irr_raf_auto irr_flags.prf_ra.autonomous 328 329 #define irr_statef_onlink irr_flags.prf_state.onlink 330 331 #define irr_rrf irr_flags.prf_rr 332 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 333 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 334 335 /* 336 * Given a pointer to an in6_ifaddr (ifaddr), 337 * return a pointer to the addr as a sockaddr_in6 338 */ 339 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 340 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 341 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 342 #define IA6_SIN6(ia) (&((ia)->ia_addr)) 343 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 344 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 345 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 346 347 #define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) 348 349 #ifdef _KERNEL 350 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 351 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 352 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 353 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 354 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 355 #endif 356 357 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 358 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 359 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 360 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 361 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 362 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 363 364 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 365 #define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 366 367 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 368 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 369 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 370 371 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 372 373 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 374 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist) 375 #define SIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ndireq) 376 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 377 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 378 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 379 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 380 381 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 382 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 383 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 384 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 385 386 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 387 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 388 389 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 390 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 391 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 392 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 393 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 394 struct in6_rrenumreq) /* change */ 395 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 396 struct in6_rrenumreq) /* set global */ 397 398 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 399 struct sioc_sg_req6) /* get s,g pkt cnt */ 400 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 401 struct sioc_mif_req6) /* get pkt cnt per if */ 402 403 #define IN6_IFF_ANYCAST 0x01 /* anycast address */ 404 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 405 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 406 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 407 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 408 409 /* do not input/output */ 410 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 411 412 #ifdef _KERNEL 413 extern struct in6_ifaddr *in6_ifaddr; 414 415 extern struct in6_ifstat **in6_ifstat; 416 extern size_t in6_ifstatmax; 417 extern struct icmp6stat icmp6stat; 418 extern struct icmp6_ifstat **icmp6_ifstat; 419 extern size_t icmp6_ifstatmax; 420 #define in6_ifstat_inc(ifp, tag) \ 421 do { \ 422 if ((ifp) && (ifp)->if_index <= if_index \ 423 && (ifp)->if_index < in6_ifstatmax \ 424 && in6_ifstat && in6_ifstat[(ifp)->if_index]) { \ 425 in6_ifstat[(ifp)->if_index]->tag++; \ 426 } \ 427 } while (0) 428 429 extern struct ifqueue ip6intrq; /* IP6 packet input queue */ 430 extern struct in6_addr zeroin6_addr; 431 extern u_char inet6ctlerrmap[]; 432 extern unsigned long in6_maxmtu; 433 434 /* 435 * Macro for finding the internet address structure (in6_ifaddr) corresponding 436 * to a given interface (ifnet structure). 437 */ 438 439 #define IFP_TO_IA6(ifp, ia) \ 440 /* struct ifnet *ifp; */ \ 441 /* struct in6_ifaddr *ia; */ \ 442 do { \ 443 struct ifaddr *ifa; \ 444 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ 445 if (!ifa->ifa_addr) \ 446 continue; \ 447 if (ifa->ifa_addr->sa_family == AF_INET6) \ 448 break; \ 449 } \ 450 (ia) = (struct in6_ifaddr *)ifa; \ 451 } while (0) 452 453 #endif /* _KERNEL */ 454 455 /* 456 * Multi-cast membership entry. One for each group/ifp that a PCB 457 * belongs to. 458 */ 459 struct in6_multi_mship { 460 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 461 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 462 }; 463 464 struct in6_multi { 465 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 466 struct in6_addr in6m_addr; /* IP6 multicast address */ 467 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 468 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 469 u_int in6m_refcount; /* # membership claims by sockets */ 470 u_int in6m_state; /* state of the membership */ 471 u_int in6m_timer; /* MLD6 listener report timer */ 472 }; 473 474 #ifdef _KERNEL 475 476 /* 477 * Structure used by macros below to remember position when stepping through 478 * all of eht in6_multi records. 479 */ 480 struct in6_multistep { 481 struct in6_ifaddr *i_ia; 482 struct in6_multi *i_in6m; 483 }; 484 485 /* 486 * Macros for looking up the in6_multi record for a given IP6 multicast 487 * address on a given interface. If no matching record is found, "in6m" 488 * returns NLL. 489 */ 490 491 #define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 492 /* struct in6_addr addr; */ \ 493 /* struct ifnet *ifp; */ \ 494 /* struct in6_multi *in6m; */ \ 495 do { \ 496 register struct in6_ifaddr *ia; \ 497 \ 498 IFP_TO_IA6((ifp), ia); \ 499 if (ia == NULL) \ 500 (in6m) = NULL; \ 501 else \ 502 for ((in6m) = ia->ia6_multiaddrs.lh_first; \ 503 (in6m) != NULL && \ 504 !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \ 505 (in6m) = in6m->in6m_entry.le_next) \ 506 continue; \ 507 } while (0) 508 509 /* 510 * Macro to step through all of the in6_multi records, one at a time. 511 * The current position is remembered in "step", which the caller must 512 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 513 * and get the first record. Both macros return a NULL "in6m" when there 514 * are no remaining records. 515 */ 516 #define IN6_NEXT_MULTI(step, in6m) \ 517 /* struct in6_multistep step; */ \ 518 /* struct in6_multi *in6m; */ \ 519 do { \ 520 if (((in6m) = (step).i_in6m) != NULL) \ 521 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 522 else \ 523 while ((step).i_ia != NULL) { \ 524 (in6m) = (step).i_ia->ia6_multiaddrs.lh_first; \ 525 (step).i_ia = (step).i_ia->ia_next; \ 526 if ((in6m) != NULL) { \ 527 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 528 break; \ 529 } \ 530 } \ 531 } while (0) 532 533 #define IN6_FIRST_MULTI(step, in6m) \ 534 /* struct in6_multistep step; */ \ 535 /* struct in6_multi *in6m */ \ 536 do { \ 537 (step).i_ia = in6_ifaddr; \ 538 (step).i_in6m = NULL; \ 539 IN6_NEXT_MULTI((step), (in6m)); \ 540 } while (0) 541 542 int in6_ifinit __P((struct ifnet *, 543 struct in6_ifaddr *, struct sockaddr_in6 *, int)); 544 struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, 545 int *)); 546 void in6_delmulti __P((struct in6_multi *)); 547 void in6_ifscrub __P((struct ifnet *, struct in6_ifaddr *)); 548 extern int in6_ifindex2scopeid __P((int)); 549 extern int in6_mask2len __P((struct in6_addr *)); 550 extern void in6_len2mask __P((struct in6_addr *, int)); 551 int in6_control __P((struct socket *, 552 u_long, caddr_t, struct ifnet *, struct proc *)); 553 void in6_purgeaddr __P((struct ifaddr *, struct ifnet *)); 554 void in6_savemkludge __P((struct in6_ifaddr *)); 555 void in6_setmaxmtu __P((void)); 556 void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); 557 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *)); 558 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, 559 struct in6_addr *)); 560 char *ip6_sprintf __P((struct in6_addr *)); 561 int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 562 int in6_are_prefix_equal __P((struct in6_addr *p1, struct in6_addr *p2, 563 int len)); 564 void in6_prefixlen2mask __P((struct in6_addr *maskp, int len)); 565 int in6_prefix_ioctl __P((struct socket *so, u_long cmd, caddr_t data, 566 struct ifnet *ifp)); 567 int in6_prefix_add_ifid __P((int iilen, struct in6_ifaddr *ia)); 568 void in6_prefix_remove_ifid __P((int iilen, struct in6_ifaddr *ia)); 569 #endif /* _KERNEL */ 570 571 #endif /* _NETINET6_IN6_VAR_H_ */ 572
Indexes created Thu Sep 25 16:09:42 GMT 2025