in6_var.h revision 1.56
1/* $NetBSD: in6_var.h,v 1.56 2007/12/05 01:17:16 dyoung 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 69/* 70 * Interface address, Internet version. One of these structures 71 * is allocated for each interface with an Internet address. 72 * The ifaddr structure contains the protocol-independent part 73 * of the structure and is assumed to be first. 74 */ 75 76/* 77 * pltime/vltime are just for future reference (required to implements 2 78 * hour rule for hosts). they should never be modified by nd6_timeout or 79 * anywhere else. 80 * userland -> kernel: accept pltime/vltime 81 * kernel -> userland: throw up everything 82 * in kernel: modify preferred/expire only 83 */ 84struct in6_addrlifetime { 85 time_t ia6t_expire; /* valid lifetime expiration time */ 86 time_t ia6t_preferred; /* preferred lifetime expiration time */ 87 u_int32_t ia6t_vltime; /* valid lifetime */ 88 u_int32_t ia6t_pltime; /* prefix lifetime */ 89}; 90 91struct nd_ifinfo; 92struct in6_ifextra { 93 struct in6_ifstat *in6_ifstat; 94 struct icmp6_ifstat *icmp6_ifstat; 95 struct nd_ifinfo *nd_ifinfo; 96 struct scope6_id *scope6_id; 97}; 98 99struct in6_ifaddr { 100 struct ifaddr ia_ifa; /* protocol-independent info */ 101#define ia_ifp ia_ifa.ifa_ifp 102#define ia_flags ia_ifa.ifa_flags 103 struct sockaddr_in6 ia_addr; /* interface address */ 104 struct sockaddr_in6 ia_net; /* network number of interface */ 105 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 106 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 107 u_int32_t ia_plen; /* prefix length */ 108 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 109 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; 110 /* list of multicast addresses */ 111 int ia6_flags; 112 113 struct in6_addrlifetime ia6_lifetime; 114 time_t ia6_createtime; /* the creation time of this address, which is 115 * currently used for temporary addresses only. 116 */ 117 time_t ia6_updatetime; 118 119 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 120 struct nd_prefix *ia6_ndpr; 121 122 /* multicast addresses joined from the kernel */ 123 LIST_HEAD(, in6_multi_mship) ia6_memberships; 124}; 125 126/* control structure to manage address selection policy */ 127struct in6_addrpolicy { 128 struct sockaddr_in6 addr; /* prefix address */ 129 struct sockaddr_in6 addrmask; /* prefix mask */ 130 int preced; /* precedence */ 131 int label; /* matching label */ 132 u_quad_t use; /* statistics */ 133}; 134 135/* 136 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 137 */ 138struct in6_ifstat { 139 u_quad_t ifs6_in_receive; /* # of total input datagram */ 140 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 141 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 142 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 143 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 144 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 145 /* NOTE: increment on final dst if */ 146 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 147 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 148 /* NOTE: fragment timeout is not here */ 149 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 150 /* NOTE: increment on final dst if */ 151 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 152 /* NOTE: increment on outgoing if */ 153 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 154 /* NOTE: does not include forwrads */ 155 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 156 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 157 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 158 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 159 /* NOTE: this is # after fragment */ 160 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 161 /* NOTE: increment on final dst if */ 162 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 163 /* NOTE: this is # after reass */ 164 /* NOTE: increment on final dst if */ 165 u_quad_t ifs6_reass_fail; /* # of reass failures */ 166 /* NOTE: may not be packet count */ 167 /* NOTE: increment on final dst if */ 168 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 169 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 170}; 171 172/* 173 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 174 * XXX: I'm not sure if this file is the right place for this structure... 175 */ 176struct icmp6_ifstat { 177 /* 178 * Input statistics 179 */ 180 /* ipv6IfIcmpInMsgs, total # of input messages */ 181 u_quad_t ifs6_in_msg; 182 /* ipv6IfIcmpInErrors, # of input error messages */ 183 u_quad_t ifs6_in_error; 184 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 185 u_quad_t ifs6_in_dstunreach; 186 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 187 u_quad_t ifs6_in_adminprohib; 188 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 189 u_quad_t ifs6_in_timeexceed; 190 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 191 u_quad_t ifs6_in_paramprob; 192 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 193 u_quad_t ifs6_in_pkttoobig; 194 /* ipv6IfIcmpInEchos, # of input echo requests */ 195 u_quad_t ifs6_in_echo; 196 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 197 u_quad_t ifs6_in_echoreply; 198 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 199 u_quad_t ifs6_in_routersolicit; 200 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 201 u_quad_t ifs6_in_routeradvert; 202 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 203 u_quad_t ifs6_in_neighborsolicit; 204 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 205 u_quad_t ifs6_in_neighboradvert; 206 /* ipv6IfIcmpInRedirects, # of input redirects */ 207 u_quad_t ifs6_in_redirect; 208 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 209 u_quad_t ifs6_in_mldquery; 210 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 211 u_quad_t ifs6_in_mldreport; 212 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 213 u_quad_t ifs6_in_mlddone; 214 215 /* 216 * Output statistics. We should solve unresolved routing problem... 217 */ 218 /* ipv6IfIcmpOutMsgs, total # of output messages */ 219 u_quad_t ifs6_out_msg; 220 /* ipv6IfIcmpOutErrors, # of output error messages */ 221 u_quad_t ifs6_out_error; 222 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 223 u_quad_t ifs6_out_dstunreach; 224 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 225 u_quad_t ifs6_out_adminprohib; 226 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 227 u_quad_t ifs6_out_timeexceed; 228 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 229 u_quad_t ifs6_out_paramprob; 230 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 231 u_quad_t ifs6_out_pkttoobig; 232 /* ipv6IfIcmpOutEchos, # of output echo requests */ 233 u_quad_t ifs6_out_echo; 234 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 235 u_quad_t ifs6_out_echoreply; 236 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 237 u_quad_t ifs6_out_routersolicit; 238 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 239 u_quad_t ifs6_out_routeradvert; 240 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 241 u_quad_t ifs6_out_neighborsolicit; 242 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 243 u_quad_t ifs6_out_neighboradvert; 244 /* ipv6IfIcmpOutRedirects, # of output redirects */ 245 u_quad_t ifs6_out_redirect; 246 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 247 u_quad_t ifs6_out_mldquery; 248 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 249 u_quad_t ifs6_out_mldreport; 250 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 251 u_quad_t ifs6_out_mlddone; 252}; 253 254struct in6_ifreq { 255 char ifr_name[IFNAMSIZ]; 256 union { 257 struct sockaddr_in6 ifru_addr; 258 struct sockaddr_in6 ifru_dstaddr; 259 short ifru_flags; 260 int ifru_flags6; 261 int ifru_metric; 262 void * ifru_data; 263 struct in6_addrlifetime ifru_lifetime; 264 struct in6_ifstat ifru_stat; 265 struct icmp6_ifstat ifru_icmp6stat; 266 } ifr_ifru; 267}; 268 269struct in6_aliasreq { 270 char ifra_name[IFNAMSIZ]; 271 struct sockaddr_in6 ifra_addr; 272 struct sockaddr_in6 ifra_dstaddr; 273 struct sockaddr_in6 ifra_prefixmask; 274 int ifra_flags; 275 struct in6_addrlifetime ifra_lifetime; 276}; 277 278/* prefix type macro */ 279#define IN6_PREFIX_ND 1 280#define IN6_PREFIX_RR 2 281 282/* 283 * prefix related flags passed between kernel(NDP related part) and 284 * user land command(ifconfig) and daemon(rtadvd). 285 * Note: We originally intended to use prf_ra{} only within in6_prflags{}, but 286 * it was (probably unintentionally) used in nd6.h as well. Since C++ does 287 * not allow such a reference, prf_ra{} was then moved outside. In general, 288 * however, this structure should not be used directly. 289 */ 290struct prf_ra { 291 u_int32_t onlink : 1; 292 u_int32_t autonomous : 1; 293 u_int32_t router : 1; 294 u_int32_t reserved : 5; 295}; 296 297struct in6_prflags { 298 struct prf_ra prf_ra; 299 u_char prf_reserved1; 300 u_short prf_reserved2; 301 /* want to put this on 4byte offset */ 302 struct prf_rr { 303 u_int32_t decrvalid : 1; 304 u_int32_t decrprefd : 1; 305 u_int32_t reserved : 6; 306 } prf_rr; 307 u_char prf_reserved3; 308 u_short prf_reserved4; 309}; 310 311struct in6_prefixreq { 312 char ipr_name[IFNAMSIZ]; 313 u_char ipr_origin; 314 u_char ipr_plen; 315 u_int32_t ipr_vltime; 316 u_int32_t ipr_pltime; 317 struct in6_prflags ipr_flags; 318 struct sockaddr_in6 ipr_prefix; 319}; 320 321#define PR_ORIG_RA 0 322#define PR_ORIG_RR 1 323#define PR_ORIG_STATIC 2 324#define PR_ORIG_KERNEL 3 325 326#define ipr_raf_onlink ipr_flags.prf_ra.onlink 327#define ipr_raf_auto ipr_flags.prf_ra.autonomous 328 329#define ipr_statef_onlink ipr_flags.prf_state.onlink 330 331#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 332#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 333 334struct in6_rrenumreq { 335 char irr_name[IFNAMSIZ]; 336 u_char irr_origin; 337 u_char irr_m_len; /* match len for matchprefix */ 338 u_char irr_m_minlen; /* minlen for matching prefix */ 339 u_char irr_m_maxlen; /* maxlen for matching prefix */ 340 u_char irr_u_uselen; /* uselen for adding prefix */ 341 u_char irr_u_keeplen; /* keeplen from matching prefix */ 342 struct irr_raflagmask { 343 u_int32_t onlink : 1; 344 u_int32_t autonomous : 1; 345 u_int32_t reserved : 6; 346 } irr_raflagmask; 347 u_int32_t irr_vltime; 348 u_int32_t irr_pltime; 349 struct in6_prflags irr_flags; 350 struct sockaddr_in6 irr_matchprefix; 351 struct sockaddr_in6 irr_useprefix; 352}; 353 354#define irr_raf_mask_onlink irr_raflagmask.onlink 355#define irr_raf_mask_auto irr_raflagmask.autonomous 356#define irr_raf_mask_reserved irr_raflagmask.reserved 357 358#define irr_raf_onlink irr_flags.prf_ra.onlink 359#define irr_raf_auto irr_flags.prf_ra.autonomous 360 361#define irr_statef_onlink irr_flags.prf_state.onlink 362 363#define irr_rrf irr_flags.prf_rr 364#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 365#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 366 367/* 368 * Given a pointer to an in6_ifaddr (ifaddr), 369 * return a pointer to the addr as a sockaddr_in6 370 */ 371#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 372#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 373#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 374#define IA6_SIN6(ia) (&((ia)->ia_addr)) 375#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 376#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 377#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 378 379#ifdef _KERNEL 380#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 381 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 382 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 383 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 384 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 385#endif 386 387#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 388#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 389 390#ifdef _KERNEL 391/* 392 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 393 * we do not shift numbers for binary compatibility. 394 */ 395#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 396#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 397#endif 398 399#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 400#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 401 402#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 403#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 404 405#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 406#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 407#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 408 409#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 410 411#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 412#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) 413#ifdef _KERNEL 414#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 415#endif 416#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 417#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq) 418#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 419#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 420#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 421#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 422 423#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 424#if 0 425/* withdrawn - do not reuse number 82 */ 426#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 427#endif 428#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 429#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 430 431#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 432#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 433 434#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 435 436#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 437#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 438#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 439#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 440#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 441 struct in6_rrenumreq) /* change */ 442#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 443 struct in6_rrenumreq) /* set global */ 444 445#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 446 struct sioc_sg_req6) /* get s,g pkt cnt */ 447#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 448 struct sioc_mif_req6) /* get pkt cnt per if */ 449#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy) 450#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy) 451 452#define IN6_IFF_ANYCAST 0x01 /* anycast address */ 453#define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 454#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 455#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 456#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 457#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 458 * (used only at first SIOC* call) 459 */ 460#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 461#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ 462 463/* do not input/output */ 464#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 465 466#ifdef _KERNEL 467#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 468#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 469#endif 470 471#ifdef _KERNEL 472MALLOC_DECLARE(M_IP6OPT); 473 474extern struct in6_ifaddr *in6_ifaddr; 475 476extern struct icmp6stat icmp6stat; 477#define in6_ifstat_inc(ifp, tag) \ 478do { \ 479 if (ifp) \ 480 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 481} while (/*CONSTCOND*/ 0) 482 483extern struct ifqueue ip6intrq; /* IP6 packet input queue */ 484extern struct in6_addr zeroin6_addr; 485extern u_char inet6ctlerrmap[]; 486extern unsigned long in6_maxmtu; 487 488/* 489 * Macro for finding the internet address structure (in6_ifaddr) corresponding 490 * to a given interface (ifnet structure). 491 */ 492static inline struct in6_ifaddr * 493ifp_to_ia6(struct ifnet *ifp) 494{ 495 struct ifaddr *ifa; 496 497 IFADDR_FOREACH(ifa, ifp) { 498 if (ifa->ifa_addr == NULL) 499 continue; 500 if (ifa->ifa_addr->sa_family == AF_INET6) 501 break; 502 } 503 return (struct in6_ifaddr *)ifa; 504} 505 506#define IFP_TO_IA6(__ifp, __ia) \ 507do { \ 508 (__ia) = ifp_to_ia6((__ifp)); \ 509} while (/*CONSTCOND*/0) 510 511 512#endif /* _KERNEL */ 513 514/* 515 * Multi-cast membership entry. One for each group/ifp that a PCB 516 * belongs to. 517 */ 518struct in6_multi_mship { 519 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 520 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 521}; 522 523struct in6_multi { 524 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 525 struct in6_addr in6m_addr; /* IP6 multicast address */ 526 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 527 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 528 u_int in6m_refcount; /* # membership claims by sockets */ 529 u_int in6m_state; /* state of the membership */ 530 int in6m_timer; /* delay to send the 1st report */ 531 struct timeval in6m_timer_expire; /* when the timer expires */ 532 callout_t in6m_timer_ch; 533}; 534 535#define IN6M_TIMER_UNDEF -1 536 537 538#ifdef _KERNEL 539/* flags to in6_update_ifa */ 540#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */ 541 542/* 543 * Structure used by macros below to remember position when stepping through 544 * all of the in6_multi records. 545 */ 546struct in6_multistep { 547 struct in6_ifaddr *i_ia; 548 struct in6_multi *i_in6m; 549}; 550 551/* 552 * Macros for looking up the in6_multi record for a given IP6 multicast 553 * address on a given interface. If no matching record is found, "in6m" 554 * returns NULL. 555 */ 556 557static inline struct in6_multi * 558in6_lookup_multi(struct in6_addr *addr, struct ifnet *ifp) 559{ 560 struct in6_multi *in6m; 561 struct in6_ifaddr *ia; 562 563 if ((ia = ifp_to_ia6(ifp)) == NULL) 564 return NULL; 565 LIST_FOREACH(in6m, &ia->ia6_multiaddrs, in6m_entry) { 566 if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, addr)) 567 break; 568 } 569 return in6m; 570} 571 572#define IN6_LOOKUP_MULTI(__addr, __ifp, __in6m) \ 573/* struct in6_addr __addr; */ \ 574/* struct ifnet *__ifp; */ \ 575/* struct in6_multi *__in6m; */ \ 576do { \ 577 (__in6m) = in6_lookup_multi(&(__addr), (__ifp)); \ 578} while (/*CONSTCOND*/ 0) 579 580/* 581 * Macro to step through all of the in6_multi records, one at a time. 582 * The current position is remembered in "step", which the caller must 583 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 584 * and get the first record. Both macros return a NULL "in6m" when there 585 * are no remaining records. 586 */ 587static inline struct in6_multi * 588in6_next_multi(struct in6_multistep *step) 589{ 590 struct in6_multi *in6m; 591 592 if ((in6m = step->i_in6m) != NULL) { 593 step->i_in6m = LIST_NEXT(in6m, in6m_entry); 594 return in6m; 595 } 596 while (step->i_ia != NULL) { 597 in6m = LIST_FIRST(&step->i_ia->ia6_multiaddrs); 598 step->i_ia = step->i_ia->ia_next; 599 if (in6m != NULL) { 600 step->i_in6m = LIST_NEXT(in6m, in6m_entry); 601 break; 602 } 603 } 604 return in6m; 605} 606 607static inline struct in6_multi * 608in6_first_multi(struct in6_multistep *step) 609{ 610 step->i_ia = in6_ifaddr; 611 step->i_in6m = NULL; 612 return in6_next_multi(step); 613} 614 615#define IN6_NEXT_MULTI(__step, __in6m) \ 616/* struct in6_multistep __step; */ \ 617/* struct in6_multi *__in6m; */ \ 618do { \ 619 (__in6m) = in6_next_multi(&(__step)); \ 620} while (/*CONSTCOND*/ 0) 621 622#define IN6_FIRST_MULTI(__step, __in6m) \ 623/* struct in6_multistep __step; */ \ 624/* struct in6_multi *__in6m */ \ 625do { \ 626 (__in6m) = in6_first_multi(&(__step)); \ 627} while (/*CONSTCOND*/ 0) 628 629 630#if 0 631/* 632 * Macros for looking up the in6_multi_mship record for a given IP6 multicast 633 * address on a given interface. If no matching record is found, "imm" 634 * returns NULL. 635 */ 636static inline struct in6_multi_mship * 637in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp, 638 struct ip6_moptions *imop) 639{ 640 struct in6_multi_mship *imm; 641 642 LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) { 643 if (imm->i6mm_maddr->in6m_ifp != ifp) 644 continue; 645 if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr, 646 addr)) 647 break; 648 } 649 return imm; 650} 651 652#define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \ 653/* struct in6_addr __addr; */ \ 654/* struct ifnet *__ifp; */ \ 655/* struct ip6_moptions *__imop */ \ 656/* struct in6_multi_mship *__imm; */ \ 657do { \ 658 (__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \ 659} while (/*CONSTCOND*/ 0) 660#endif 661 662struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, 663 int *, int); 664void in6_delmulti(struct in6_multi *); 665struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, 666 int *, int); 667int in6_leavegroup(struct in6_multi_mship *); 668int in6_mask2len(struct in6_addr *, u_char *); 669int in6_control(struct socket *, u_long, void *, struct ifnet *, 670 struct lwp *); 671int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, 672 struct in6_ifaddr *, int); 673void in6_purgeaddr(struct ifaddr *); 674int in6if_do_dad(struct ifnet *); 675void in6_purgeif(struct ifnet *); 676void in6_savemkludge(struct in6_ifaddr *); 677void in6_setmaxmtu (void); 678int in6_if2idlen (struct ifnet *); 679void *in6_domifattach(struct ifnet *); 680void in6_domifdetach(struct ifnet *, void *); 681void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *); 682void in6_ifremloop(struct ifaddr *); 683void in6_ifaddloop(struct ifaddr *); 684void in6_createmkludge(struct ifnet *); 685void in6_purgemkludge(struct ifnet *); 686struct in6_ifaddr *in6ifa_ifpforlinklocal(const struct ifnet *, int); 687struct in6_ifaddr *in6ifa_ifpwithaddr(const struct ifnet *, 688 const struct in6_addr *); 689char *ip6_sprintf(const struct in6_addr *); 690int in6_matchlen(struct in6_addr *, struct in6_addr *); 691int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int); 692void in6_prefixlen2mask(struct in6_addr *, int); 693void in6_purgeprefix(struct ifnet *); 694 695int ip6flow_fastforward(struct mbuf *); /* IPv6 fast forward routine */ 696 697int in6_src_ioctl(u_long, void *); 698int in6_is_addr_deprecated(struct sockaddr_in6 *); 699struct in6pcb; 700#endif /* _KERNEL */ 701 702#endif /* !_NETINET6_IN6_VAR_H_ */ 703