in6_var.h revision 121168
1/* $FreeBSD: head/sys/netinet6/in6_var.h 121168 2003-10-17 17:50:09Z ume $ */ 2/* $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 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. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)in_var.h 8.1 (Berkeley) 6/10/93 66 */ 67 68#ifndef _NETINET6_IN6_VAR_H_ 69#define _NETINET6_IN6_VAR_H_ 70 71/* 72 * Interface address, Internet version. One of these structures 73 * is allocated for each interface with an Internet address. 74 * The ifaddr structure contains the protocol-independent part 75 * of the structure and is assumed to be first. 76 */ 77 78/* 79 * pltime/vltime are just for future reference (required to implements 2 80 * hour rule for hosts). they should never be modified by nd6_timeout or 81 * anywhere else. 82 * userland -> kernel: accept pltime/vltime 83 * kernel -> userland: throw up everything 84 * in kernel: modify preferred/expire only 85 */ 86struct in6_addrlifetime { 87 time_t ia6t_expire; /* valid lifetime expiration time */ 88 time_t ia6t_preferred; /* preferred lifetime expiration time */ 89 u_int32_t ia6t_vltime; /* valid lifetime */ 90 u_int32_t ia6t_pltime; /* prefix lifetime */ 91}; 92 93struct nd_ifinfo; 94struct scope6_id; 95struct in6_ifextra { 96 struct in6_ifstat *in6_ifstat; 97 struct icmp6_ifstat *icmp6_ifstat; 98 struct nd_ifinfo *nd_ifinfo; 99 struct scope6_id *scope6_id; 100}; 101 102struct in6_ifaddr { 103 struct ifaddr ia_ifa; /* protocol-independent info */ 104#define ia_ifp ia_ifa.ifa_ifp 105#define ia_flags ia_ifa.ifa_flags 106 struct sockaddr_in6 ia_addr; /* interface address */ 107 struct sockaddr_in6 ia_net; /* network number of interface */ 108 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 109 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 110 u_int32_t ia_plen; /* prefix length */ 111 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 112 int ia6_flags; 113 114 struct in6_addrlifetime ia6_lifetime; 115 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */ 116 117 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 118 struct nd_prefix *ia6_ndpr; 119}; 120 121/* 122 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 123 */ 124struct in6_ifstat { 125 u_quad_t ifs6_in_receive; /* # of total input datagram */ 126 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 127 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 128 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 129 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 130 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 131 /* NOTE: increment on final dst if */ 132 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 133 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 134 /* NOTE: fragment timeout is not here */ 135 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 136 /* NOTE: increment on final dst if */ 137 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 138 /* NOTE: increment on outgoing if */ 139 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 140 /* NOTE: does not include forwrads */ 141 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 142 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 143 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 144 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 145 /* NOTE: this is # after fragment */ 146 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 147 /* NOTE: increment on final dst if */ 148 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 149 /* NOTE: this is # after reass */ 150 /* NOTE: increment on final dst if */ 151 u_quad_t ifs6_reass_fail; /* # of reass failures */ 152 /* NOTE: may not be packet count */ 153 /* NOTE: increment on final dst if */ 154 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 155 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 156}; 157 158/* 159 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 160 * XXX: I'm not sure if this file is the right place for this structure... 161 */ 162struct icmp6_ifstat { 163 /* 164 * Input statistics 165 */ 166 /* ipv6IfIcmpInMsgs, total # of input messages */ 167 u_quad_t ifs6_in_msg; 168 /* ipv6IfIcmpInErrors, # of input error messages */ 169 u_quad_t ifs6_in_error; 170 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 171 u_quad_t ifs6_in_dstunreach; 172 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 173 u_quad_t ifs6_in_adminprohib; 174 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 175 u_quad_t ifs6_in_timeexceed; 176 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 177 u_quad_t ifs6_in_paramprob; 178 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 179 u_quad_t ifs6_in_pkttoobig; 180 /* ipv6IfIcmpInEchos, # of input echo requests */ 181 u_quad_t ifs6_in_echo; 182 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 183 u_quad_t ifs6_in_echoreply; 184 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 185 u_quad_t ifs6_in_routersolicit; 186 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 187 u_quad_t ifs6_in_routeradvert; 188 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 189 u_quad_t ifs6_in_neighborsolicit; 190 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 191 u_quad_t ifs6_in_neighboradvert; 192 /* ipv6IfIcmpInRedirects, # of input redirects */ 193 u_quad_t ifs6_in_redirect; 194 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 195 u_quad_t ifs6_in_mldquery; 196 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 197 u_quad_t ifs6_in_mldreport; 198 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 199 u_quad_t ifs6_in_mlddone; 200 201 /* 202 * Output statistics. We should solve unresolved routing problem... 203 */ 204 /* ipv6IfIcmpOutMsgs, total # of output messages */ 205 u_quad_t ifs6_out_msg; 206 /* ipv6IfIcmpOutErrors, # of output error messages */ 207 u_quad_t ifs6_out_error; 208 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 209 u_quad_t ifs6_out_dstunreach; 210 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 211 u_quad_t ifs6_out_adminprohib; 212 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 213 u_quad_t ifs6_out_timeexceed; 214 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 215 u_quad_t ifs6_out_paramprob; 216 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 217 u_quad_t ifs6_out_pkttoobig; 218 /* ipv6IfIcmpOutEchos, # of output echo requests */ 219 u_quad_t ifs6_out_echo; 220 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 221 u_quad_t ifs6_out_echoreply; 222 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 223 u_quad_t ifs6_out_routersolicit; 224 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 225 u_quad_t ifs6_out_routeradvert; 226 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 227 u_quad_t ifs6_out_neighborsolicit; 228 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 229 u_quad_t ifs6_out_neighboradvert; 230 /* ipv6IfIcmpOutRedirects, # of output redirects */ 231 u_quad_t ifs6_out_redirect; 232 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 233 u_quad_t ifs6_out_mldquery; 234 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 235 u_quad_t ifs6_out_mldreport; 236 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 237 u_quad_t ifs6_out_mlddone; 238}; 239 240struct in6_ifreq { 241 char ifr_name[IFNAMSIZ]; 242 union { 243 struct sockaddr_in6 ifru_addr; 244 struct sockaddr_in6 ifru_dstaddr; 245 int ifru_flags; 246 int ifru_flags6; 247 int ifru_metric; 248 caddr_t ifru_data; 249 struct in6_addrlifetime ifru_lifetime; 250 struct in6_ifstat ifru_stat; 251 struct icmp6_ifstat ifru_icmp6stat; 252 u_int32_t ifru_scope_id[16]; 253 } ifr_ifru; 254}; 255 256struct in6_aliasreq { 257 char ifra_name[IFNAMSIZ]; 258 struct sockaddr_in6 ifra_addr; 259 struct sockaddr_in6 ifra_dstaddr; 260 struct sockaddr_in6 ifra_prefixmask; 261 int ifra_flags; 262 struct in6_addrlifetime ifra_lifetime; 263}; 264 265/* prefix type macro */ 266#define IN6_PREFIX_ND 1 267#define IN6_PREFIX_RR 2 268 269/* 270 * prefix related flags passed between kernel(NDP related part) and 271 * user land command(ifconfig) and daemon(rtadvd). 272 */ 273struct in6_prflags { 274 struct prf_ra { 275 u_char onlink : 1; 276 u_char autonomous : 1; 277 u_char reserved : 6; 278 } prf_ra; 279 u_char prf_reserved1; 280 u_short prf_reserved2; 281 /* want to put this on 4byte offset */ 282 struct prf_rr { 283 u_char decrvalid : 1; 284 u_char decrprefd : 1; 285 u_char reserved : 6; 286 } prf_rr; 287 u_char prf_reserved3; 288 u_short prf_reserved4; 289}; 290 291struct in6_prefixreq { 292 char ipr_name[IFNAMSIZ]; 293 u_char ipr_origin; 294 u_char ipr_plen; 295 u_int32_t ipr_vltime; 296 u_int32_t ipr_pltime; 297 struct in6_prflags ipr_flags; 298 struct sockaddr_in6 ipr_prefix; 299}; 300 301#define PR_ORIG_RA 0 302#define PR_ORIG_RR 1 303#define PR_ORIG_STATIC 2 304#define PR_ORIG_KERNEL 3 305 306#define ipr_raf_onlink ipr_flags.prf_ra.onlink 307#define ipr_raf_auto ipr_flags.prf_ra.autonomous 308 309#define ipr_statef_onlink ipr_flags.prf_state.onlink 310 311#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 312#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 313 314struct in6_rrenumreq { 315 char irr_name[IFNAMSIZ]; 316 u_char irr_origin; 317 u_char irr_m_len; /* match len for matchprefix */ 318 u_char irr_m_minlen; /* minlen for matching prefix */ 319 u_char irr_m_maxlen; /* maxlen for matching prefix */ 320 u_char irr_u_uselen; /* uselen for adding prefix */ 321 u_char irr_u_keeplen; /* keeplen from matching prefix */ 322 struct irr_raflagmask { 323 u_char onlink : 1; 324 u_char autonomous : 1; 325 u_char reserved : 6; 326 } irr_raflagmask; 327 u_int32_t irr_vltime; 328 u_int32_t irr_pltime; 329 struct in6_prflags irr_flags; 330 struct sockaddr_in6 irr_matchprefix; 331 struct sockaddr_in6 irr_useprefix; 332}; 333 334#define irr_raf_mask_onlink irr_raflagmask.onlink 335#define irr_raf_mask_auto irr_raflagmask.autonomous 336#define irr_raf_mask_reserved irr_raflagmask.reserved 337 338#define irr_raf_onlink irr_flags.prf_ra.onlink 339#define irr_raf_auto irr_flags.prf_ra.autonomous 340 341#define irr_statef_onlink irr_flags.prf_state.onlink 342 343#define irr_rrf irr_flags.prf_rr 344#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 345#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 346 347/* 348 * Given a pointer to an in6_ifaddr (ifaddr), 349 * return a pointer to the addr as a sockaddr_in6 350 */ 351#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 352#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 353#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 354#define IA6_SIN6(ia) (&((ia)->ia_addr)) 355#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 356#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 357#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 358 359#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) 360 361#ifdef _KERNEL 362#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 363 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 364 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 365 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 366 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 367#endif 368 369#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 370#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 371 372#ifdef _KERNEL 373/* 374 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 375 * we do not shift numbers for binary compatibility. 376 */ 377#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 378#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 379#endif 380 381#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 382#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 383 384#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 385#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 386 387#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 388#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 389#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 390 391#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 392 393#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 394#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist) 395#ifdef _KERNEL 396#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 397#endif 398#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 399#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 400#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 401#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 402#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 403 404#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 405#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 406#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 407#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 408 409#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 410#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 411 412#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 413 414#define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq) 415#define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq) 416#define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq) 417 418#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 419#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 420#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 421#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 422#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 423 struct in6_rrenumreq) /* change */ 424#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 425 struct in6_rrenumreq) /* set global */ 426 427#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 428 struct sioc_sg_req6) /* get s,g pkt cnt */ 429#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 430 struct sioc_mif_req6) /* get pkt cnt per if */ 431 432#define IN6_IFF_ANYCAST 0x01 /* anycast address */ 433#define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 434#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 435#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 436#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 437#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 438 * (used only at first SIOC* call) 439 */ 440#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 441#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ 442#define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management. 443 * XXX: this should be temporary. 444 */ 445 446/* do not input/output */ 447#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 448 449#ifdef _KERNEL 450#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 451#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 452#endif 453 454#ifdef _KERNEL 455extern struct in6_ifaddr *in6_ifaddr; 456 457extern struct icmp6stat icmp6stat; 458#define in6_ifstat_inc(ifp, tag) \ 459do { \ 460 if (ifp) \ 461 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 462} while (/*CONSTCOND*/ 0) 463 464extern struct in6_addr zeroin6_addr; 465extern u_char inet6ctlerrmap[]; 466extern unsigned long in6_maxmtu; 467#ifdef MALLOC_DECLARE 468MALLOC_DECLARE(M_IPMADDR); 469#endif /* MALLOC_DECLARE */ 470 471/* 472 * Macro for finding the internet address structure (in6_ifaddr) corresponding 473 * to a given interface (ifnet structure). 474 */ 475 476#define IFP_TO_IA6(ifp, ia) \ 477/* struct ifnet *ifp; */ \ 478/* struct in6_ifaddr *ia; */ \ 479do { \ 480 struct ifaddr *ifa; \ 481 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ 482 if (!ifa->ifa_addr) \ 483 continue; \ 484 if (ifa->ifa_addr->sa_family == AF_INET6) \ 485 break; \ 486 } \ 487 (ia) = (struct in6_ifaddr *)ifa; \ 488} while (/*CONSTCOND*/ 0) 489 490#endif /* _KERNEL */ 491 492/* 493 * Multi-cast membership entry. One for each group/ifp that a PCB 494 * belongs to. 495 */ 496struct in6_multi_mship { 497 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 498 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 499}; 500 501struct in6_multi { 502 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 503 struct in6_addr in6m_addr; /* IP6 multicast address */ 504 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 505 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */ 506 u_int in6m_refcount; /* # membership claims by sockets */ 507 u_int in6m_state; /* state of the membership */ 508 u_int in6m_timer; /* MLD6 listener report timer */ 509}; 510 511#ifdef _KERNEL 512extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead; 513 514/* 515 * Structure used by macros below to remember position when stepping through 516 * all of the in6_multi records. 517 */ 518struct in6_multistep { 519 struct in6_ifaddr *i_ia; 520 struct in6_multi *i_in6m; 521}; 522 523/* 524 * Macros for looking up the in6_multi record for a given IP6 multicast 525 * address on a given interface. If no matching record is found, "in6m" 526 * returns NLL. 527 */ 528 529#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 530/* struct in6_addr addr; */ \ 531/* struct ifnet *ifp; */ \ 532/* struct in6_multi *in6m; */ \ 533do { \ 534 struct ifmultiaddr *ifma; \ 535 TAILQ_FOREACH(ifma, &(ifp)->if_multiaddrs, ifma_link) { \ 536 if (ifma->ifma_addr->sa_family == AF_INET6 \ 537 && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \ 538 &(addr))) \ 539 break; \ 540 } \ 541 (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \ 542} while(0) 543 544/* 545 * Macro to step through all of the in6_multi records, one at a time. 546 * The current position is remembered in "step", which the caller must 547 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 548 * and get the first record. Both macros return a NULL "in6m" when there 549 * are no remaining records. 550 */ 551#define IN6_NEXT_MULTI(step, in6m) \ 552/* struct in6_multistep step; */ \ 553/* struct in6_multi *in6m; */ \ 554do { \ 555 if (((in6m) = (step).i_in6m) != NULL) \ 556 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \ 557} while(0) 558 559#define IN6_FIRST_MULTI(step, in6m) \ 560/* struct in6_multistep step; */ \ 561/* struct in6_multi *in6m */ \ 562do { \ 563 (step).i_in6m = in6_multihead.lh_first; \ 564 IN6_NEXT_MULTI((step), (in6m)); \ 565} while(0) 566 567struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, 568 int *)); 569void in6_delmulti __P((struct in6_multi *)); 570int in6_mask2len __P((struct in6_addr *, u_char *)); 571int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *, 572 struct thread *)); 573int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *, 574 struct in6_ifaddr *)); 575void in6_purgeaddr __P((struct ifaddr *)); 576int in6if_do_dad __P((struct ifnet *)); 577void in6_purgeif __P((struct ifnet *)); 578void in6_savemkludge __P((struct in6_ifaddr *)); 579void *in6_domifattach __P((struct ifnet *)); 580void in6_domifdetach __P((struct ifnet *, void *)); 581void in6_setmaxmtu __P((void)); 582void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); 583void in6_purgemkludge __P((struct ifnet *)); 584struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int)); 585struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *)); 586char *ip6_sprintf __P((const struct in6_addr *)); 587int in6_addr2scopeid __P((struct ifnet *, struct in6_addr *)); 588int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 589int in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int)); 590void in6_prefixlen2mask __P((struct in6_addr *, int)); 591int in6_prefix_ioctl __P((struct socket *, u_long, caddr_t, 592 struct ifnet *)); 593int in6_prefix_add_ifid __P((int, struct in6_ifaddr *)); 594void in6_prefix_remove_ifid __P((int, struct in6_ifaddr *)); 595void in6_purgeprefix __P((struct ifnet *)); 596 597int in6_is_addr_deprecated __P((struct sockaddr_in6 *)); 598struct inpcb; 599int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *, 600 struct inpcb *, struct ifnet **)); 601int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *, 602 struct ifnet *)); 603void in6_clearscope __P((struct in6_addr *)); 604#endif /* _KERNEL */ 605 606#endif /* _NETINET6_IN6_VAR_H_ */ 607