in6_var.h revision 1.37
1/* $NetBSD: in6_var.h,v 1.37 2004/06/16 02:36:37 itojun 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 */ 82struct 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 89struct nd_ifinfo; 90struct in6_ifextra { 91 struct in6_ifstat *in6_ifstat; 92 struct icmp6_ifstat *icmp6_ifstat; 93 struct nd_ifinfo *nd_ifinfo; 94}; 95 96struct in6_ifaddr { 97 struct ifaddr ia_ifa; /* protocol-independent info */ 98#define ia_ifp ia_ifa.ifa_ifp 99#define ia_flags ia_ifa.ifa_flags 100 struct sockaddr_in6 ia_addr; /* interface address */ 101 struct sockaddr_in6 ia_net; /* network number of interface */ 102 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 103 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 104 u_int32_t ia_plen; /* prefix length */ 105 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 106 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; 107 /* list of multicast addresses */ 108 int ia6_flags; 109 110 struct in6_addrlifetime ia6_lifetime; 111 time_t ia6_createtime; /* the creation time of this address, which is 112 * currently used for temporary addresses only. 113 */ 114 time_t ia6_updatetime; 115 116 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 117 struct nd_prefix *ia6_ndpr; 118 119 /* multicast addresses joined from the kernel */ 120 LIST_HEAD(, in6_multi_mship) ia6_memberships; 121}; 122 123/* 124 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 125 */ 126struct in6_ifstat { 127 u_quad_t ifs6_in_receive; /* # of total input datagram */ 128 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 129 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 130 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 131 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 132 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 133 /* NOTE: increment on final dst if */ 134 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 135 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 136 /* NOTE: fragment timeout is not here */ 137 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 138 /* NOTE: increment on final dst if */ 139 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 140 /* NOTE: increment on outgoing if */ 141 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 142 /* NOTE: does not include forwrads */ 143 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 144 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 145 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 146 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 147 /* NOTE: this is # after fragment */ 148 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 149 /* NOTE: increment on final dst if */ 150 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 151 /* NOTE: this is # after reass */ 152 /* NOTE: increment on final dst if */ 153 u_quad_t ifs6_reass_fail; /* # of reass failures */ 154 /* NOTE: may not be packet count */ 155 /* NOTE: increment on final dst if */ 156 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 157 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 158}; 159 160/* 161 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 162 * XXX: I'm not sure if this file is the right place for this structure... 163 */ 164struct icmp6_ifstat { 165 /* 166 * Input statistics 167 */ 168 /* ipv6IfIcmpInMsgs, total # of input messages */ 169 u_quad_t ifs6_in_msg; 170 /* ipv6IfIcmpInErrors, # of input error messages */ 171 u_quad_t ifs6_in_error; 172 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 173 u_quad_t ifs6_in_dstunreach; 174 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 175 u_quad_t ifs6_in_adminprohib; 176 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 177 u_quad_t ifs6_in_timeexceed; 178 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 179 u_quad_t ifs6_in_paramprob; 180 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 181 u_quad_t ifs6_in_pkttoobig; 182 /* ipv6IfIcmpInEchos, # of input echo requests */ 183 u_quad_t ifs6_in_echo; 184 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 185 u_quad_t ifs6_in_echoreply; 186 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 187 u_quad_t ifs6_in_routersolicit; 188 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 189 u_quad_t ifs6_in_routeradvert; 190 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 191 u_quad_t ifs6_in_neighborsolicit; 192 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 193 u_quad_t ifs6_in_neighboradvert; 194 /* ipv6IfIcmpInRedirects, # of input redirects */ 195 u_quad_t ifs6_in_redirect; 196 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 197 u_quad_t ifs6_in_mldquery; 198 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 199 u_quad_t ifs6_in_mldreport; 200 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 201 u_quad_t ifs6_in_mlddone; 202 203 /* 204 * Output statistics. We should solve unresolved routing problem... 205 */ 206 /* ipv6IfIcmpOutMsgs, total # of output messages */ 207 u_quad_t ifs6_out_msg; 208 /* ipv6IfIcmpOutErrors, # of output error messages */ 209 u_quad_t ifs6_out_error; 210 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 211 u_quad_t ifs6_out_dstunreach; 212 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 213 u_quad_t ifs6_out_adminprohib; 214 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 215 u_quad_t ifs6_out_timeexceed; 216 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 217 u_quad_t ifs6_out_paramprob; 218 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 219 u_quad_t ifs6_out_pkttoobig; 220 /* ipv6IfIcmpOutEchos, # of output echo requests */ 221 u_quad_t ifs6_out_echo; 222 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 223 u_quad_t ifs6_out_echoreply; 224 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 225 u_quad_t ifs6_out_routersolicit; 226 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 227 u_quad_t ifs6_out_routeradvert; 228 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 229 u_quad_t ifs6_out_neighborsolicit; 230 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 231 u_quad_t ifs6_out_neighboradvert; 232 /* ipv6IfIcmpOutRedirects, # of output redirects */ 233 u_quad_t ifs6_out_redirect; 234 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 235 u_quad_t ifs6_out_mldquery; 236 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 237 u_quad_t ifs6_out_mldreport; 238 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 239 u_quad_t ifs6_out_mlddone; 240}; 241 242struct in6_ifreq { 243 char ifr_name[IFNAMSIZ]; 244 union { 245 struct sockaddr_in6 ifru_addr; 246 struct sockaddr_in6 ifru_dstaddr; 247 short ifru_flags; 248 int ifru_flags6; 249 int ifru_metric; 250 caddr_t ifru_data; 251 struct in6_addrlifetime ifru_lifetime; 252 struct in6_ifstat ifru_stat; 253 struct icmp6_ifstat ifru_icmp6stat; 254 } ifr_ifru; 255}; 256 257struct in6_aliasreq { 258 char ifra_name[IFNAMSIZ]; 259 struct sockaddr_in6 ifra_addr; 260 struct sockaddr_in6 ifra_dstaddr; 261 struct sockaddr_in6 ifra_prefixmask; 262 int ifra_flags; 263 struct in6_addrlifetime ifra_lifetime; 264}; 265 266/* prefix type macro */ 267#define IN6_PREFIX_ND 1 268#define IN6_PREFIX_RR 2 269 270/* 271 * prefix related flags passed between kernel(NDP related part) and 272 * user land command(ifconfig) and daemon(rtadvd). 273 */ 274struct prf_ra { 275 u_char onlink : 1; 276 u_char autonomous : 1; 277 u_char router : 1; 278 u_char reserved : 5; 279}; 280 281struct in6_prflags { 282 struct prf_ra prf_ra; 283 u_char prf_reserved1; 284 u_short prf_reserved2; 285 /* want to put this on 4byte offset */ 286 struct prf_rr { 287 u_char decrvalid : 1; 288 u_char decrprefd : 1; 289 u_char reserved : 6; 290 } prf_rr; 291 u_char prf_reserved3; 292 u_short prf_reserved4; 293}; 294 295struct in6_prefixreq { 296 char ipr_name[IFNAMSIZ]; 297 u_char ipr_origin; 298 u_char ipr_plen; 299 u_int32_t ipr_vltime; 300 u_int32_t ipr_pltime; 301 struct in6_prflags ipr_flags; 302 struct sockaddr_in6 ipr_prefix; 303}; 304 305#define PR_ORIG_RA 0 306#define PR_ORIG_RR 1 307#define PR_ORIG_STATIC 2 308#define PR_ORIG_KERNEL 3 309 310#define ipr_raf_onlink ipr_flags.prf_ra.onlink 311#define ipr_raf_auto ipr_flags.prf_ra.autonomous 312 313#define ipr_statef_onlink ipr_flags.prf_state.onlink 314 315#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 316#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 317 318struct in6_rrenumreq { 319 char irr_name[IFNAMSIZ]; 320 u_char irr_origin; 321 u_char irr_m_len; /* match len for matchprefix */ 322 u_char irr_m_minlen; /* minlen for matching prefix */ 323 u_char irr_m_maxlen; /* maxlen for matching prefix */ 324 u_char irr_u_uselen; /* uselen for adding prefix */ 325 u_char irr_u_keeplen; /* keeplen from matching prefix */ 326 struct irr_raflagmask { 327 u_char onlink : 1; 328 u_char autonomous : 1; 329 u_char reserved : 6; 330 } irr_raflagmask; 331 u_int32_t irr_vltime; 332 u_int32_t irr_pltime; 333 struct in6_prflags irr_flags; 334 struct sockaddr_in6 irr_matchprefix; 335 struct sockaddr_in6 irr_useprefix; 336}; 337 338#define irr_raf_mask_onlink irr_raflagmask.onlink 339#define irr_raf_mask_auto irr_raflagmask.autonomous 340#define irr_raf_mask_reserved irr_raflagmask.reserved 341 342#define irr_raf_onlink irr_flags.prf_ra.onlink 343#define irr_raf_auto irr_flags.prf_ra.autonomous 344 345#define irr_statef_onlink irr_flags.prf_state.onlink 346 347#define irr_rrf irr_flags.prf_rr 348#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 349#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 350 351/* 352 * Given a pointer to an in6_ifaddr (ifaddr), 353 * return a pointer to the addr as a sockaddr_in6 354 */ 355#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 356#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 357#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 358#define IA6_SIN6(ia) (&((ia)->ia_addr)) 359#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 360#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 361#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 362 363#ifdef _KERNEL 364#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 365 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 366 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 367 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 368 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 369#endif 370 371#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 372#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 373 374#ifdef _KERNEL 375/* 376 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 377 * we do not shift numbers for binary compatibility. 378 */ 379#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 380#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 381#endif 382 383#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 384#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 385 386#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 387#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 388 389#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 390#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 391#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 392 393#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 394 395#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 396#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) 397#ifdef _KERNEL 398#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 399#endif 400#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 401#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 402#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 403#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 404#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 405 406#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 407#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 408#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 409#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 410 411#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 412#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 413 414#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 415 416#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 417#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 418#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 419#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 420#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 421 struct in6_rrenumreq) /* change */ 422#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 423 struct in6_rrenumreq) /* set global */ 424 425#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 426 struct sioc_sg_req6) /* get s,g pkt cnt */ 427#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 428 struct sioc_mif_req6) /* get pkt cnt per if */ 429 430#define IN6_IFF_ANYCAST 0x01 /* anycast address */ 431#define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 432#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 433#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 434#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 435#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 436 * (used only at first SIOC* call) 437 */ 438#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 439 440/* do not input/output */ 441#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 442 443#ifdef _KERNEL 444#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 445#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 446#endif 447 448#ifdef _KERNEL 449MALLOC_DECLARE(M_IP6OPT); 450 451extern struct in6_ifaddr *in6_ifaddr; 452 453extern struct icmp6stat icmp6stat; 454#define in6_ifstat_inc(ifp, tag) \ 455do { \ 456 if (ifp) \ 457 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 458} while (/*CONSTCOND*/ 0) 459 460extern struct ifqueue ip6intrq; /* IP6 packet input queue */ 461extern struct in6_addr zeroin6_addr; 462extern u_char inet6ctlerrmap[]; 463extern unsigned long in6_maxmtu; 464 465/* 466 * Macro for finding the internet address structure (in6_ifaddr) corresponding 467 * to a given interface (ifnet structure). 468 */ 469 470#define IFP_TO_IA6(ifp, ia) \ 471/* struct ifnet *ifp; */ \ 472/* struct in6_ifaddr *ia; */ \ 473do { \ 474 struct ifaddr *ifa; \ 475 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ 476 if (!ifa->ifa_addr) \ 477 continue; \ 478 if (ifa->ifa_addr->sa_family == AF_INET6) \ 479 break; \ 480 } \ 481 (ia) = (struct in6_ifaddr *)ifa; \ 482} while (/*CONSTCOND*/ 0) 483 484#endif /* _KERNEL */ 485 486/* 487 * Multi-cast membership entry. One for each group/ifp that a PCB 488 * belongs to. 489 */ 490struct in6_multi_mship { 491 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 492 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 493}; 494 495struct in6_multi { 496 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 497 struct in6_addr in6m_addr; /* IP6 multicast address */ 498 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 499 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 500 u_int in6m_refcount; /* # membership claims by sockets */ 501 u_int in6m_state; /* state of the membership */ 502 u_int in6m_timer; /* MLD6 listener report timer */ 503}; 504 505#ifdef _KERNEL 506 507/* 508 * Structure used by macros below to remember position when stepping through 509 * all of the in6_multi records. 510 */ 511struct in6_multistep { 512 struct in6_ifaddr *i_ia; 513 struct in6_multi *i_in6m; 514}; 515 516/* 517 * Macros for looking up the in6_multi record for a given IP6 multicast 518 * address on a given interface. If no matching record is found, "in6m" 519 * returns NLL. 520 */ 521 522#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 523/* struct in6_addr addr; */ \ 524/* struct ifnet *ifp; */ \ 525/* struct in6_multi *in6m; */ \ 526do { \ 527 struct in6_ifaddr *ia; \ 528 \ 529 IFP_TO_IA6((ifp), ia); \ 530 if (ia == NULL) \ 531 (in6m) = NULL; \ 532 else \ 533 for ((in6m) = ia->ia6_multiaddrs.lh_first; \ 534 (in6m) != NULL && \ 535 !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \ 536 (in6m) = (in6m)->in6m_entry.le_next) \ 537 continue; \ 538} while (/*CONSTCOND*/ 0) 539 540/* 541 * Macro to step through all of the in6_multi records, one at a time. 542 * The current position is remembered in "step", which the caller must 543 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 544 * and get the first record. Both macros return a NULL "in6m" when there 545 * are no remaining records. 546 */ 547#define IN6_NEXT_MULTI(step, in6m) \ 548/* struct in6_multistep step; */ \ 549/* struct in6_multi *in6m; */ \ 550do { \ 551 if (((in6m) = (step).i_in6m) != NULL) \ 552 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 553 else \ 554 while ((step).i_ia != NULL) { \ 555 (in6m) = (step).i_ia->ia6_multiaddrs.lh_first; \ 556 (step).i_ia = (step).i_ia->ia_next; \ 557 if ((in6m) != NULL) { \ 558 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 559 break; \ 560 } \ 561 } \ 562} while (/*CONSTCOND*/ 0) 563 564#define IN6_FIRST_MULTI(step, in6m) \ 565/* struct in6_multistep step; */ \ 566/* struct in6_multi *in6m */ \ 567do { \ 568 (step).i_ia = in6_ifaddr; \ 569 (step).i_in6m = NULL; \ 570 IN6_NEXT_MULTI((step), (in6m)); \ 571} while (/*CONSTCOND*/ 0) 572 573struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, 574 int *)); 575void in6_delmulti __P((struct in6_multi *)); 576struct in6_multi_mship *in6_joingroup __P((struct ifnet *, struct in6_addr *, 577 int *)); 578int in6_leavegroup __P((struct in6_multi_mship *)); 579int in6_ifindex2scopeid __P((int)); 580int in6_mask2len __P((struct in6_addr *, u_char *)); 581int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *, 582 struct proc *)); 583int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *, 584 struct in6_ifaddr *)); 585void in6_purgeaddr __P((struct ifaddr *)); 586int in6if_do_dad __P((struct ifnet *)); 587void in6_purgeif __P((struct ifnet *)); 588void in6_savemkludge __P((struct in6_ifaddr *)); 589void in6_setmaxmtu __P((void)); 590void *in6_domifattach __P((struct ifnet *)); 591void in6_domifdetach __P((struct ifnet *, void *)); 592void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); 593void in6_createmkludge __P((struct ifnet *)); 594void in6_purgemkludge __P((struct ifnet *)); 595struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int)); 596struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *)); 597char *ip6_sprintf __P((const struct in6_addr *)); 598int in6_addr2scopeid __P((struct ifnet *, struct in6_addr *)); 599int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 600int in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int)); 601void in6_prefixlen2mask __P((struct in6_addr *, int)); 602void in6_purgeprefix __P((struct ifnet *)); 603 604int in6_is_addr_deprecated __P((struct sockaddr_in6 *)); 605struct in6pcb; 606int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *, 607 struct in6pcb *, struct ifnet **)); 608int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *, 609 struct ifnet *)); 610void in6_clearscope __P((struct in6_addr *)); 611#endif /* _KERNEL */ 612 613#endif /* _NETINET6_IN6_VAR_H_ */ 614