in6_var.h revision 151468
1/* $FreeBSD: head/sys/netinet6/in6_var.h 151468 2005-10-19 15:05:42Z suz $ */ 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 * 4. 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 scope6_id; 91struct in6_ifextra { 92 struct in6_ifstat *in6_ifstat; 93 struct icmp6_ifstat *icmp6_ifstat; 94 struct nd_ifinfo *nd_ifinfo; 95 struct scope6_id *scope6_id; 96}; 97 98struct in6_ifaddr { 99 struct ifaddr ia_ifa; /* protocol-independent info */ 100#define ia_ifp ia_ifa.ifa_ifp 101#define ia_flags ia_ifa.ifa_flags 102 struct sockaddr_in6 ia_addr; /* interface address */ 103 struct sockaddr_in6 ia_net; /* network number of interface */ 104 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 105 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 106 u_int32_t ia_plen; /* prefix length */ 107 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 108 int ia6_flags; 109 110 struct in6_addrlifetime ia6_lifetime; 111 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */ 112 113 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 114 struct nd_prefix *ia6_ndpr; 115}; 116 117/* control structure to manage address selection policy */ 118struct in6_addrpolicy { 119 struct sockaddr_in6 addr; /* prefix address */ 120 struct sockaddr_in6 addrmask; /* prefix mask */ 121 int preced; /* precedence */ 122 int label; /* matching label */ 123 u_quad_t use; /* statistics */ 124}; 125 126/* 127 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 128 */ 129struct in6_ifstat { 130 u_quad_t ifs6_in_receive; /* # of total input datagram */ 131 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 132 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 133 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 134 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 135 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 136 /* NOTE: increment on final dst if */ 137 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 138 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 139 /* NOTE: fragment timeout is not here */ 140 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 141 /* NOTE: increment on final dst if */ 142 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 143 /* NOTE: increment on outgoing if */ 144 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 145 /* NOTE: does not include forwrads */ 146 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 147 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 148 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 149 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 150 /* NOTE: this is # after fragment */ 151 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 152 /* NOTE: increment on final dst if */ 153 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 154 /* NOTE: this is # after reass */ 155 /* NOTE: increment on final dst if */ 156 u_quad_t ifs6_reass_fail; /* # of reass failures */ 157 /* NOTE: may not be packet count */ 158 /* NOTE: increment on final dst if */ 159 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 160 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 161}; 162 163/* 164 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 165 * XXX: I'm not sure if this file is the right place for this structure... 166 */ 167struct icmp6_ifstat { 168 /* 169 * Input statistics 170 */ 171 /* ipv6IfIcmpInMsgs, total # of input messages */ 172 u_quad_t ifs6_in_msg; 173 /* ipv6IfIcmpInErrors, # of input error messages */ 174 u_quad_t ifs6_in_error; 175 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 176 u_quad_t ifs6_in_dstunreach; 177 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 178 u_quad_t ifs6_in_adminprohib; 179 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 180 u_quad_t ifs6_in_timeexceed; 181 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 182 u_quad_t ifs6_in_paramprob; 183 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 184 u_quad_t ifs6_in_pkttoobig; 185 /* ipv6IfIcmpInEchos, # of input echo requests */ 186 u_quad_t ifs6_in_echo; 187 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 188 u_quad_t ifs6_in_echoreply; 189 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 190 u_quad_t ifs6_in_routersolicit; 191 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 192 u_quad_t ifs6_in_routeradvert; 193 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 194 u_quad_t ifs6_in_neighborsolicit; 195 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 196 u_quad_t ifs6_in_neighboradvert; 197 /* ipv6IfIcmpInRedirects, # of input redirects */ 198 u_quad_t ifs6_in_redirect; 199 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 200 u_quad_t ifs6_in_mldquery; 201 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 202 u_quad_t ifs6_in_mldreport; 203 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 204 u_quad_t ifs6_in_mlddone; 205 206 /* 207 * Output statistics. We should solve unresolved routing problem... 208 */ 209 /* ipv6IfIcmpOutMsgs, total # of output messages */ 210 u_quad_t ifs6_out_msg; 211 /* ipv6IfIcmpOutErrors, # of output error messages */ 212 u_quad_t ifs6_out_error; 213 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 214 u_quad_t ifs6_out_dstunreach; 215 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 216 u_quad_t ifs6_out_adminprohib; 217 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 218 u_quad_t ifs6_out_timeexceed; 219 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 220 u_quad_t ifs6_out_paramprob; 221 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 222 u_quad_t ifs6_out_pkttoobig; 223 /* ipv6IfIcmpOutEchos, # of output echo requests */ 224 u_quad_t ifs6_out_echo; 225 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 226 u_quad_t ifs6_out_echoreply; 227 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 228 u_quad_t ifs6_out_routersolicit; 229 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 230 u_quad_t ifs6_out_routeradvert; 231 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 232 u_quad_t ifs6_out_neighborsolicit; 233 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 234 u_quad_t ifs6_out_neighboradvert; 235 /* ipv6IfIcmpOutRedirects, # of output redirects */ 236 u_quad_t ifs6_out_redirect; 237 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 238 u_quad_t ifs6_out_mldquery; 239 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 240 u_quad_t ifs6_out_mldreport; 241 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 242 u_quad_t ifs6_out_mlddone; 243}; 244 245struct in6_ifreq { 246 char ifr_name[IFNAMSIZ]; 247 union { 248 struct sockaddr_in6 ifru_addr; 249 struct sockaddr_in6 ifru_dstaddr; 250 int ifru_flags; 251 int ifru_flags6; 252 int ifru_metric; 253 caddr_t ifru_data; 254 struct in6_addrlifetime ifru_lifetime; 255 struct in6_ifstat ifru_stat; 256 struct icmp6_ifstat ifru_icmp6stat; 257 u_int32_t ifru_scope_id[16]; 258 } ifr_ifru; 259}; 260 261struct in6_aliasreq { 262 char ifra_name[IFNAMSIZ]; 263 struct sockaddr_in6 ifra_addr; 264 struct sockaddr_in6 ifra_dstaddr; 265 struct sockaddr_in6 ifra_prefixmask; 266 int ifra_flags; 267 struct in6_addrlifetime ifra_lifetime; 268}; 269 270/* prefix type macro */ 271#define IN6_PREFIX_ND 1 272#define IN6_PREFIX_RR 2 273 274/* 275 * prefix related flags passed between kernel(NDP related part) and 276 * user land command(ifconfig) and daemon(rtadvd). 277 */ 278struct in6_prflags { 279 struct prf_ra { 280 u_char onlink : 1; 281 u_char autonomous : 1; 282 u_char reserved : 6; 283 } prf_ra; 284 u_char prf_reserved1; 285 u_short prf_reserved2; 286 /* want to put this on 4byte offset */ 287 struct prf_rr { 288 u_char decrvalid : 1; 289 u_char decrprefd : 1; 290 u_char reserved : 6; 291 } prf_rr; 292 u_char prf_reserved3; 293 u_short prf_reserved4; 294}; 295 296struct in6_prefixreq { 297 char ipr_name[IFNAMSIZ]; 298 u_char ipr_origin; 299 u_char ipr_plen; 300 u_int32_t ipr_vltime; 301 u_int32_t ipr_pltime; 302 struct in6_prflags ipr_flags; 303 struct sockaddr_in6 ipr_prefix; 304}; 305 306#define PR_ORIG_RA 0 307#define PR_ORIG_RR 1 308#define PR_ORIG_STATIC 2 309#define PR_ORIG_KERNEL 3 310 311#define ipr_raf_onlink ipr_flags.prf_ra.onlink 312#define ipr_raf_auto ipr_flags.prf_ra.autonomous 313 314#define ipr_statef_onlink ipr_flags.prf_state.onlink 315 316#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 317#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 318 319struct in6_rrenumreq { 320 char irr_name[IFNAMSIZ]; 321 u_char irr_origin; 322 u_char irr_m_len; /* match len for matchprefix */ 323 u_char irr_m_minlen; /* minlen for matching prefix */ 324 u_char irr_m_maxlen; /* maxlen for matching prefix */ 325 u_char irr_u_uselen; /* uselen for adding prefix */ 326 u_char irr_u_keeplen; /* keeplen from matching prefix */ 327 struct irr_raflagmask { 328 u_char onlink : 1; 329 u_char autonomous : 1; 330 u_char reserved : 6; 331 } irr_raflagmask; 332 u_int32_t irr_vltime; 333 u_int32_t irr_pltime; 334 struct in6_prflags irr_flags; 335 struct sockaddr_in6 irr_matchprefix; 336 struct sockaddr_in6 irr_useprefix; 337}; 338 339#define irr_raf_mask_onlink irr_raflagmask.onlink 340#define irr_raf_mask_auto irr_raflagmask.autonomous 341#define irr_raf_mask_reserved irr_raflagmask.reserved 342 343#define irr_raf_onlink irr_flags.prf_ra.onlink 344#define irr_raf_auto irr_flags.prf_ra.autonomous 345 346#define irr_statef_onlink irr_flags.prf_state.onlink 347 348#define irr_rrf irr_flags.prf_rr 349#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 350#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 351 352/* 353 * Given a pointer to an in6_ifaddr (ifaddr), 354 * return a pointer to the addr as a sockaddr_in6 355 */ 356#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 357#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 358#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 359#define IA6_SIN6(ia) (&((ia)->ia_addr)) 360#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 361#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 362#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 363 364#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) 365 366#ifdef _KERNEL 367#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 368 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 369 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 370 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 371 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 372#endif 373 374#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 375#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 376 377#ifdef _KERNEL 378/* 379 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 380 * we do not shift numbers for binary compatibility. 381 */ 382#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 383#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 384#endif 385 386#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 387#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 388 389#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 390#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 391 392#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 393#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 394#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 395 396#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 397 398#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 399#ifdef _KERNEL 400/* XXX: SIOCGPRLST_IN6 is exposed in KAME but in6_oprlist is not. */ 401#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) 402#endif 403#ifdef _KERNEL 404#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 405#endif 406#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 407#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq) 408#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 409#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 410#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 411#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 412 413#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 414#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 415#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 416#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 417 418#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 419#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 420 421#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 422 423#define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq) 424#define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq) 425#define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq) 426 427#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 428#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 429#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 430#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 431#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 432 struct in6_rrenumreq) /* change */ 433#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 434 struct in6_rrenumreq) /* set global */ 435 436#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 437 struct sioc_sg_req6) /* get s,g pkt cnt */ 438#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 439 struct sioc_mif_req6) /* get pkt cnt per if */ 440 441#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy) 442#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy) 443 444#define IN6_IFF_ANYCAST 0x01 /* anycast address */ 445#define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 446#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 447#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 448#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 449#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 450 * (used only at first SIOC* call) 451 */ 452#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 453#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ 454#define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management. 455 * XXX: this should be temporary. 456 */ 457 458/* do not input/output */ 459#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 460 461#ifdef _KERNEL 462#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 463#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 464#endif 465 466#ifdef _KERNEL 467extern struct in6_ifaddr *in6_ifaddr; 468 469extern struct icmp6stat icmp6stat; 470#define in6_ifstat_inc(ifp, tag) \ 471do { \ 472 if (ifp) \ 473 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 474} while (/*CONSTCOND*/ 0) 475 476extern struct in6_addr zeroin6_addr; 477extern u_char inet6ctlerrmap[]; 478extern unsigned long in6_maxmtu; 479#ifdef MALLOC_DECLARE 480MALLOC_DECLARE(M_IP6MADDR); 481#endif /* MALLOC_DECLARE */ 482 483/* 484 * Macro for finding the internet address structure (in6_ifaddr) corresponding 485 * to a given interface (ifnet structure). 486 */ 487 488#define IFP_TO_IA6(ifp, ia) \ 489/* struct ifnet *ifp; */ \ 490/* struct in6_ifaddr *ia; */ \ 491do { \ 492 struct ifaddr *ifa; \ 493 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ 494 if (!ifa->ifa_addr) \ 495 continue; \ 496 if (ifa->ifa_addr->sa_family == AF_INET6) \ 497 break; \ 498 } \ 499 (ia) = (struct in6_ifaddr *)ifa; \ 500} while (/*CONSTCOND*/ 0) 501 502#endif /* _KERNEL */ 503 504/* 505 * Multi-cast membership entry. One for each group/ifp that a PCB 506 * belongs to. 507 */ 508struct in6_multi_mship { 509 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 510 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 511}; 512 513struct in6_multi { 514 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 515 struct in6_addr in6m_addr; /* IP6 multicast address */ 516 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 517 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */ 518 u_int in6m_refcount; /* # membership claims by sockets */ 519 u_int in6m_state; /* state of the membership */ 520 u_int in6m_timer; /* MLD6 listener report timer */ 521}; 522 523#ifdef _KERNEL 524extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead; 525 526/* 527 * Structure used by macros below to remember position when stepping through 528 * all of the in6_multi records. 529 */ 530struct in6_multistep { 531 struct in6_ifaddr *i_ia; 532 struct in6_multi *i_in6m; 533}; 534 535/* 536 * Macros for looking up the in6_multi record for a given IP6 multicast 537 * address on a given interface. If no matching record is found, "in6m" 538 * returns NULL. 539 */ 540 541#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 542/* struct in6_addr addr; */ \ 543/* struct ifnet *ifp; */ \ 544/* struct in6_multi *in6m; */ \ 545do { \ 546 struct ifmultiaddr *ifma; \ 547 IF_ADDR_LOCK(ifp); \ 548 TAILQ_FOREACH(ifma, &(ifp)->if_multiaddrs, ifma_link) { \ 549 if (ifma->ifma_addr->sa_family == AF_INET6 \ 550 && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \ 551 &(addr))) \ 552 break; \ 553 } \ 554 (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \ 555 IF_ADDR_UNLOCK(ifp); \ 556} while(0) 557 558/* 559 * Macro to step through all of the in6_multi records, one at a time. 560 * The current position is remembered in "step", which the caller must 561 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 562 * and get the first record. Both macros return a NULL "in6m" when there 563 * are no remaining records. 564 */ 565#define IN6_NEXT_MULTI(step, in6m) \ 566/* struct in6_multistep step; */ \ 567/* struct in6_multi *in6m; */ \ 568do { \ 569 if (((in6m) = (step).i_in6m) != NULL) \ 570 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \ 571} while(0) 572 573#define IN6_FIRST_MULTI(step, in6m) \ 574/* struct in6_multistep step; */ \ 575/* struct in6_multi *in6m */ \ 576do { \ 577 (step).i_in6m = in6_multihead.lh_first; \ 578 IN6_NEXT_MULTI((step), (in6m)); \ 579} while(0) 580 581struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, 582 int *)); 583void in6_delmulti __P((struct in6_multi *)); 584struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *); 585int in6_leavegroup(struct in6_multi_mship *); 586int in6_mask2len __P((struct in6_addr *, u_char *)); 587int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *, 588 struct thread *)); 589int in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *, 590 struct in6_ifaddr *)); 591void in6_purgeaddr __P((struct ifaddr *)); 592int in6if_do_dad __P((struct ifnet *)); 593void in6_purgeif __P((struct ifnet *)); 594void in6_savemkludge __P((struct in6_ifaddr *)); 595void *in6_domifattach __P((struct ifnet *)); 596void in6_domifdetach __P((struct ifnet *, void *)); 597void in6_setmaxmtu __P((void)); 598void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); 599void in6_purgemkludge __P((struct ifnet *)); 600struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int)); 601struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *)); 602char *ip6_sprintf __P((const struct in6_addr *)); 603int in6_addr2zoneid __P((struct ifnet *, struct in6_addr *, u_int32_t *)); 604int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 605int in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int)); 606void in6_prefixlen2mask __P((struct in6_addr *, int)); 607int in6_prefix_ioctl __P((struct socket *, u_long, caddr_t, 608 struct ifnet *)); 609int in6_prefix_add_ifid __P((int, struct in6_ifaddr *)); 610void in6_prefix_remove_ifid __P((int, struct in6_ifaddr *)); 611void in6_purgeprefix __P((struct ifnet *)); 612void in6_ifremloop(struct ifaddr *); 613void in6_ifaddloop(struct ifaddr *); 614 615int in6_is_addr_deprecated __P((struct sockaddr_in6 *)); 616struct inpcb; 617int in6_src_ioctl __P((u_long, caddr_t)); 618#endif /* _KERNEL */ 619 620#endif /* _NETINET6_IN6_VAR_H_ */ 621