1 /*- 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $ 30 */ 31 32 /*- 33 * Copyright (c) 1985, 1986, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 4. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)in_var.h 8.1 (Berkeley) 6/10/93 61 * $FreeBSD$ 62 */ 63 64 #ifndef _NETINET6_IN6_VAR_H_ 65 #define _NETINET6_IN6_VAR_H_ 66 67 #include <sys/tree.h> 68 69 #ifdef _KERNEL 70 #include <sys/fnv_hash.h> 71 #include <sys/libkern.h> 72 #endif 73 74 /* 75 * Interface address, Internet version. One of these structures 76 * is allocated for each interface with an Internet address. 77 * The ifaddr structure contains the protocol-independent part 78 * of the structure and is assumed to be first. 79 */ 80 81 /* 82 * pltime/vltime are just for future reference (required to implements 2 83 * hour rule for hosts). they should never be modified by nd6_timeout or 84 * anywhere else. 85 * userland -> kernel: accept pltime/vltime 86 * kernel -> userland: throw up everything 87 * in kernel: modify preferred/expire only 88 */ 89 struct in6_addrlifetime { 90 time_t ia6t_expire; /* valid lifetime expiration time */ 91 time_t ia6t_preferred; /* preferred lifetime expiration time */ 92 u_int32_t ia6t_vltime; /* valid lifetime */ 93 u_int32_t ia6t_pltime; /* prefix lifetime */ 94 }; 95 96 struct nd_ifinfo; 97 struct scope6_id; 98 struct lltable; 99 struct mld_ifinfo; 100 101 #ifdef _KERNEL 102 #include <sys/counter.h> 103 104 struct in6_ifextra { 105 counter_u64_t *in6_ifstat; 106 counter_u64_t *icmp6_ifstat; 107 struct nd_ifinfo *nd_ifinfo; 108 struct scope6_id *scope6_id; 109 struct lltable *lltable; 110 struct mld_ifinfo *mld_ifinfo; 111 }; 112 #else 113 114 struct in6_ifextra { 115 void *in6_ifstat; 116 void *icmp6_ifstat; 117 struct nd_ifinfo *nd_ifinfo; 118 struct scope6_id *scope6_id; 119 struct lltable *lltable; 120 struct mld_ifinfo *mld_ifinfo; 121 }; 122 #endif /* !_KERNEL */ 123 124 #define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable) 125 126 struct in6_ifaddr { 127 struct ifaddr ia_ifa; /* protocol-independent info */ 128 #define ia_ifp ia_ifa.ifa_ifp 129 #define ia_flags ia_ifa.ifa_flags 130 struct sockaddr_in6 ia_addr; /* interface address */ 131 struct sockaddr_in6 ia_net; /* network number of interface */ 132 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 133 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 134 u_int32_t ia_plen; /* prefix length */ 135 TAILQ_ENTRY(in6_ifaddr) ia_link; /* list of IPv6 addresses */ 136 int ia6_flags; 137 138 struct in6_addrlifetime ia6_lifetime; 139 time_t ia6_createtime; /* the creation time of this address, which is 140 * currently used for temporary addresses only. 141 */ 142 time_t ia6_updatetime; 143 144 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 145 struct nd_prefix *ia6_ndpr; 146 147 /* multicast addresses joined from the kernel */ 148 LIST_HEAD(, in6_multi_mship) ia6_memberships; 149 /* entry in bucket of inet6 addresses */ 150 LIST_ENTRY(in6_ifaddr) ia6_hash; 151 }; 152 153 /* List of in6_ifaddr's. */ 154 TAILQ_HEAD(in6_ifaddrhead, in6_ifaddr); 155 LIST_HEAD(in6_ifaddrlisthead, in6_ifaddr); 156 157 /* control structure to manage address selection policy */ 158 struct in6_addrpolicy { 159 struct sockaddr_in6 addr; /* prefix address */ 160 struct sockaddr_in6 addrmask; /* prefix mask */ 161 int preced; /* precedence */ 162 int label; /* matching label */ 163 u_quad_t use; /* statistics */ 164 }; 165 166 /* 167 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 168 */ 169 struct in6_ifstat { 170 uint64_t ifs6_in_receive; /* # of total input datagram */ 171 uint64_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 172 uint64_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 173 uint64_t ifs6_in_noroute; /* # of datagrams with no route */ 174 uint64_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 175 uint64_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 176 /* NOTE: increment on final dst if */ 177 uint64_t ifs6_in_truncated; /* # of truncated datagrams */ 178 uint64_t ifs6_in_discard; /* # of discarded datagrams */ 179 /* NOTE: fragment timeout is not here */ 180 uint64_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 181 /* NOTE: increment on final dst if */ 182 uint64_t ifs6_out_forward; /* # of datagrams forwarded */ 183 /* NOTE: increment on outgoing if */ 184 uint64_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 185 /* NOTE: does not include forwrads */ 186 uint64_t ifs6_out_discard; /* # of discarded datagrams */ 187 uint64_t ifs6_out_fragok; /* # of datagrams fragmented */ 188 uint64_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 189 uint64_t ifs6_out_fragcreat; /* # of fragment datagrams */ 190 /* NOTE: this is # after fragment */ 191 uint64_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 192 /* NOTE: increment on final dst if */ 193 uint64_t ifs6_reass_ok; /* # of reassembled packets */ 194 /* NOTE: this is # after reass */ 195 /* NOTE: increment on final dst if */ 196 uint64_t ifs6_reass_fail; /* # of reass failures */ 197 /* NOTE: may not be packet count */ 198 /* NOTE: increment on final dst if */ 199 uint64_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 200 uint64_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 201 }; 202 203 /* 204 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 205 * XXX: I'm not sure if this file is the right place for this structure... 206 */ 207 struct icmp6_ifstat { 208 /* 209 * Input statistics 210 */ 211 /* ipv6IfIcmpInMsgs, total # of input messages */ 212 uint64_t ifs6_in_msg; 213 /* ipv6IfIcmpInErrors, # of input error messages */ 214 uint64_t ifs6_in_error; 215 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 216 uint64_t ifs6_in_dstunreach; 217 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 218 uint64_t ifs6_in_adminprohib; 219 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 220 uint64_t ifs6_in_timeexceed; 221 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 222 uint64_t ifs6_in_paramprob; 223 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 224 uint64_t ifs6_in_pkttoobig; 225 /* ipv6IfIcmpInEchos, # of input echo requests */ 226 uint64_t ifs6_in_echo; 227 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 228 uint64_t ifs6_in_echoreply; 229 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 230 uint64_t ifs6_in_routersolicit; 231 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 232 uint64_t ifs6_in_routeradvert; 233 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 234 uint64_t ifs6_in_neighborsolicit; 235 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 236 uint64_t ifs6_in_neighboradvert; 237 /* ipv6IfIcmpInRedirects, # of input redirects */ 238 uint64_t ifs6_in_redirect; 239 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 240 uint64_t ifs6_in_mldquery; 241 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 242 uint64_t ifs6_in_mldreport; 243 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 244 uint64_t ifs6_in_mlddone; 245 246 /* 247 * Output statistics. We should solve unresolved routing problem... 248 */ 249 /* ipv6IfIcmpOutMsgs, total # of output messages */ 250 uint64_t ifs6_out_msg; 251 /* ipv6IfIcmpOutErrors, # of output error messages */ 252 uint64_t ifs6_out_error; 253 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 254 uint64_t ifs6_out_dstunreach; 255 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 256 uint64_t ifs6_out_adminprohib; 257 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 258 uint64_t ifs6_out_timeexceed; 259 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 260 uint64_t ifs6_out_paramprob; 261 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 262 uint64_t ifs6_out_pkttoobig; 263 /* ipv6IfIcmpOutEchos, # of output echo requests */ 264 uint64_t ifs6_out_echo; 265 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 266 uint64_t ifs6_out_echoreply; 267 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 268 uint64_t ifs6_out_routersolicit; 269 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 270 uint64_t ifs6_out_routeradvert; 271 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 272 uint64_t ifs6_out_neighborsolicit; 273 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 274 uint64_t ifs6_out_neighboradvert; 275 /* ipv6IfIcmpOutRedirects, # of output redirects */ 276 uint64_t ifs6_out_redirect; 277 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 278 uint64_t ifs6_out_mldquery; 279 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 280 uint64_t ifs6_out_mldreport; 281 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 282 uint64_t ifs6_out_mlddone; 283 }; 284 285 struct in6_ifreq { 286 char ifr_name[IFNAMSIZ]; 287 union { 288 struct sockaddr_in6 ifru_addr; 289 struct sockaddr_in6 ifru_dstaddr; 290 int ifru_flags; 291 int ifru_flags6; 292 int ifru_metric; 293 caddr_t ifru_data; 294 struct in6_addrlifetime ifru_lifetime; 295 struct in6_ifstat ifru_stat; 296 struct icmp6_ifstat ifru_icmp6stat; 297 u_int32_t ifru_scope_id[16]; 298 } ifr_ifru; 299 }; 300 301 struct in6_aliasreq { 302 char ifra_name[IFNAMSIZ]; 303 struct sockaddr_in6 ifra_addr; 304 struct sockaddr_in6 ifra_dstaddr; 305 struct sockaddr_in6 ifra_prefixmask; 306 int ifra_flags; 307 struct in6_addrlifetime ifra_lifetime; 308 int ifra_vhid; 309 }; 310 311 /* pre-10.x compat */ 312 struct oin6_aliasreq { 313 char ifra_name[IFNAMSIZ]; 314 struct sockaddr_in6 ifra_addr; 315 struct sockaddr_in6 ifra_dstaddr; 316 struct sockaddr_in6 ifra_prefixmask; 317 int ifra_flags; 318 struct in6_addrlifetime ifra_lifetime; 319 }; 320 321 /* prefix type macro */ 322 #define IN6_PREFIX_ND 1 323 #define IN6_PREFIX_RR 2 324 325 /* 326 * prefix related flags passed between kernel(NDP related part) and 327 * user land command(ifconfig) and daemon(rtadvd). 328 */ 329 struct in6_prflags { 330 struct prf_ra { 331 u_char onlink : 1; 332 u_char autonomous : 1; 333 u_char reserved : 6; 334 } prf_ra; 335 u_char prf_reserved1; 336 u_short prf_reserved2; 337 /* want to put this on 4byte offset */ 338 struct prf_rr { 339 u_char decrvalid : 1; 340 u_char decrprefd : 1; 341 u_char reserved : 6; 342 } prf_rr; 343 u_char prf_reserved3; 344 u_short prf_reserved4; 345 }; 346 347 struct in6_prefixreq { 348 char ipr_name[IFNAMSIZ]; 349 u_char ipr_origin; 350 u_char ipr_plen; 351 u_int32_t ipr_vltime; 352 u_int32_t ipr_pltime; 353 struct in6_prflags ipr_flags; 354 struct sockaddr_in6 ipr_prefix; 355 }; 356 357 #define PR_ORIG_RA 0 358 #define PR_ORIG_RR 1 359 #define PR_ORIG_STATIC 2 360 #define PR_ORIG_KERNEL 3 361 362 #define ipr_raf_onlink ipr_flags.prf_ra.onlink 363 #define ipr_raf_auto ipr_flags.prf_ra.autonomous 364 365 #define ipr_statef_onlink ipr_flags.prf_state.onlink 366 367 #define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 368 #define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 369 370 struct in6_rrenumreq { 371 char irr_name[IFNAMSIZ]; 372 u_char irr_origin; 373 u_char irr_m_len; /* match len for matchprefix */ 374 u_char irr_m_minlen; /* minlen for matching prefix */ 375 u_char irr_m_maxlen; /* maxlen for matching prefix */ 376 u_char irr_u_uselen; /* uselen for adding prefix */ 377 u_char irr_u_keeplen; /* keeplen from matching prefix */ 378 struct irr_raflagmask { 379 u_char onlink : 1; 380 u_char autonomous : 1; 381 u_char reserved : 6; 382 } irr_raflagmask; 383 u_int32_t irr_vltime; 384 u_int32_t irr_pltime; 385 struct in6_prflags irr_flags; 386 struct sockaddr_in6 irr_matchprefix; 387 struct sockaddr_in6 irr_useprefix; 388 }; 389 390 #define irr_raf_mask_onlink irr_raflagmask.onlink 391 #define irr_raf_mask_auto irr_raflagmask.autonomous 392 #define irr_raf_mask_reserved irr_raflagmask.reserved 393 394 #define irr_raf_onlink irr_flags.prf_ra.onlink 395 #define irr_raf_auto irr_flags.prf_ra.autonomous 396 397 #define irr_statef_onlink irr_flags.prf_state.onlink 398 399 #define irr_rrf irr_flags.prf_rr 400 #define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 401 #define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 402 403 /* 404 * Given a pointer to an in6_ifaddr (ifaddr), 405 * return a pointer to the addr as a sockaddr_in6 406 */ 407 #define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 408 #define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 409 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 410 #define IA6_SIN6(ia) (&((ia)->ia_addr)) 411 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 412 #define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 413 #define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 414 415 #define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) 416 417 #ifdef _KERNEL 418 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 419 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 420 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 421 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 422 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 423 #endif 424 425 #define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 426 #define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 427 428 #ifdef _KERNEL 429 /* 430 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 431 * we do not shift numbers for binary compatibility. 432 */ 433 #define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 434 #define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 435 #endif 436 437 #define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 438 #define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 439 440 #define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 441 #define OSIOCAIFADDR_IN6 _IOW('i', 26, struct oin6_aliasreq) 442 #define SIOCAIFADDR_IN6 _IOW('i', 27, struct in6_aliasreq) 443 444 #define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 445 #define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 446 #define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 447 448 #define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 449 450 #define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 451 #ifdef _KERNEL 452 /* XXX: SIOCGPRLST_IN6 is exposed in KAME but in6_oprlist is not. */ 453 #define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) 454 #endif 455 #ifdef _KERNEL 456 #define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 457 #endif 458 #define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 459 #define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq) 460 #define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 461 #define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 462 #define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 463 #define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 464 465 #define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 466 #define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 467 #define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 468 #define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 469 470 #define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 471 #define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 472 473 #define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 474 475 #define SIOCSSCOPE6 _IOW('i', 88, struct in6_ifreq) 476 #define SIOCGSCOPE6 _IOWR('i', 89, struct in6_ifreq) 477 #define SIOCGSCOPE6DEF _IOWR('i', 90, struct in6_ifreq) 478 479 #define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 480 #define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 481 #define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 482 #define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 483 #define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 484 struct in6_rrenumreq) /* change */ 485 #define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 486 struct in6_rrenumreq) /* set global */ 487 488 #define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 489 struct sioc_sg_req6) /* get s,g pkt cnt */ 490 #define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 491 struct sioc_mif_req6) /* get pkt cnt per if */ 492 493 #define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy) 494 #define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy) 495 496 #define IN6_IFF_ANYCAST 0x01 /* anycast address */ 497 #define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 498 #define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 499 #define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 500 #define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 501 #define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 502 * (used only at first SIOC* call) 503 */ 504 #define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 505 #define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ 506 #define IN6_IFF_NOPFX 0x8000 /* skip kernel prefix management. 507 * XXX: this should be temporary. 508 */ 509 510 /* do not input/output */ 511 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 512 513 #ifdef _KERNEL 514 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 515 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 516 #endif 517 518 #ifdef _KERNEL 519 VNET_DECLARE(struct in6_ifaddrhead, in6_ifaddrhead); 520 VNET_DECLARE(struct in6_ifaddrlisthead *, in6_ifaddrhashtbl); 521 VNET_DECLARE(u_long, in6_ifaddrhmask); 522 #define V_in6_ifaddrhead VNET(in6_ifaddrhead) 523 #define V_in6_ifaddrhashtbl VNET(in6_ifaddrhashtbl) 524 #define V_in6_ifaddrhmask VNET(in6_ifaddrhmask) 525 526 #define IN6ADDR_NHASH_LOG2 8 527 #define IN6ADDR_NHASH (1 << IN6ADDR_NHASH_LOG2) 528 #define IN6ADDR_HASHVAL(x) (in6_addrhash(x)) 529 #define IN6ADDR_HASH(x) \ 530 (&V_in6_ifaddrhashtbl[IN6ADDR_HASHVAL(x) & V_in6_ifaddrhmask]) 531 532 static __inline uint32_t 533 in6_addrhash(struct in6_addr *in6) 534 { 535 uint32_t x; 536 537 x = in6->s6_addr32[0] ^ in6->s6_addr32[1] ^ in6->s6_addr32[2] ^ 538 in6->s6_addr32[3]; 539 return (fnv_32_buf(&x, sizeof(x), FNV1_32_INIT)); 540 } 541 542 extern struct rwlock in6_ifaddr_lock; 543 #define IN6_IFADDR_LOCK_ASSERT( ) rw_assert(&in6_ifaddr_lock, RA_LOCKED) 544 #define IN6_IFADDR_RLOCK() rw_rlock(&in6_ifaddr_lock) 545 #define IN6_IFADDR_RLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_RLOCKED) 546 #define IN6_IFADDR_RUNLOCK() rw_runlock(&in6_ifaddr_lock) 547 #define IN6_IFADDR_WLOCK() rw_wlock(&in6_ifaddr_lock) 548 #define IN6_IFADDR_WLOCK_ASSERT() rw_assert(&in6_ifaddr_lock, RA_WLOCKED) 549 #define IN6_IFADDR_WUNLOCK() rw_wunlock(&in6_ifaddr_lock) 550 551 #define in6_ifstat_inc(ifp, tag) \ 552 do { \ 553 if (ifp) \ 554 counter_u64_add(((struct in6_ifextra *) \ 555 ((ifp)->if_afdata[AF_INET6]))->in6_ifstat[ \ 556 offsetof(struct in6_ifstat, tag) / sizeof(uint64_t)], 1);\ 557 } while (/*CONSTCOND*/ 0) 558 559 extern u_char inet6ctlerrmap[]; 560 VNET_DECLARE(unsigned long, in6_maxmtu); 561 #define V_in6_maxmtu VNET(in6_maxmtu) 562 #endif /* _KERNEL */ 563 564 /* 565 * IPv6 multicast MLD-layer source entry. 566 */ 567 struct ip6_msource { 568 RB_ENTRY(ip6_msource) im6s_link; /* RB tree links */ 569 struct in6_addr im6s_addr; 570 struct im6s_st { 571 uint16_t ex; /* # of exclusive members */ 572 uint16_t in; /* # of inclusive members */ 573 } im6s_st[2]; /* state at t0, t1 */ 574 uint8_t im6s_stp; /* pending query */ 575 }; 576 RB_HEAD(ip6_msource_tree, ip6_msource); 577 578 /* 579 * IPv6 multicast PCB-layer source entry. 580 * 581 * NOTE: overlapping use of struct ip6_msource fields at start. 582 */ 583 struct in6_msource { 584 RB_ENTRY(ip6_msource) im6s_link; /* Common field */ 585 struct in6_addr im6s_addr; /* Common field */ 586 uint8_t im6sl_st[2]; /* state before/at commit */ 587 }; 588 589 #ifdef _KERNEL 590 /* 591 * IPv6 source tree comparison function. 592 * 593 * An ordered predicate is necessary; bcmp() is not documented to return 594 * an indication of order, memcmp() is, and is an ISO C99 requirement. 595 */ 596 static __inline int 597 ip6_msource_cmp(const struct ip6_msource *a, const struct ip6_msource *b) 598 { 599 600 return (memcmp(&a->im6s_addr, &b->im6s_addr, sizeof(struct in6_addr))); 601 } 602 RB_PROTOTYPE(ip6_msource_tree, ip6_msource, im6s_link, ip6_msource_cmp); 603 #endif /* _KERNEL */ 604 605 /* 606 * IPv6 multicast PCB-layer group filter descriptor. 607 */ 608 struct in6_mfilter { 609 struct ip6_msource_tree im6f_sources; /* source list for (S,G) */ 610 u_long im6f_nsrc; /* # of source entries */ 611 uint8_t im6f_st[2]; /* state before/at commit */ 612 }; 613 614 /* 615 * Legacy KAME IPv6 multicast membership descriptor. 616 */ 617 struct in6_multi_mship { 618 struct in6_multi *i6mm_maddr; 619 LIST_ENTRY(in6_multi_mship) i6mm_chain; 620 }; 621 622 /* 623 * IPv6 group descriptor. 624 * 625 * For every entry on an ifnet's if_multiaddrs list which represents 626 * an IP multicast group, there is one of these structures. 627 * 628 * If any source filters are present, then a node will exist in the RB-tree 629 * to permit fast lookup by source whenever an operation takes place. 630 * This permits pre-order traversal when we issue reports. 631 * Source filter trees are kept separately from the socket layer to 632 * greatly simplify locking. 633 * 634 * When MLDv2 is active, in6m_timer is the response to group query timer. 635 * The state-change timer in6m_sctimer is separate; whenever state changes 636 * for the group the state change record is generated and transmitted, 637 * and kept if retransmissions are necessary. 638 * 639 * FUTURE: in6m_link is now only used when groups are being purged 640 * on a detaching ifnet. It could be demoted to a SLIST_ENTRY, but 641 * because it is at the very start of the struct, we can't do this 642 * w/o breaking the ABI for ifmcstat. 643 */ 644 struct in6_multi { 645 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 646 struct in6_addr in6m_addr; /* IPv6 multicast address */ 647 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 648 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */ 649 u_int in6m_refcount; /* reference count */ 650 u_int in6m_state; /* state of the membership */ 651 u_int in6m_timer; /* MLD6 listener report timer */ 652 653 /* New fields for MLDv2 follow. */ 654 struct mld_ifinfo *in6m_mli; /* MLD info */ 655 SLIST_ENTRY(in6_multi) in6m_nrele; /* to-be-released by MLD */ 656 struct ip6_msource_tree in6m_srcs; /* tree of sources */ 657 u_long in6m_nsrc; /* # of tree entries */ 658 659 struct ifqueue in6m_scq; /* queue of pending 660 * state-change packets */ 661 struct timeval in6m_lastgsrtv; /* last G-S-R query */ 662 uint16_t in6m_sctimer; /* state-change timer */ 663 uint16_t in6m_scrv; /* state-change rexmit count */ 664 665 /* 666 * SSM state counters which track state at T0 (the time the last 667 * state-change report's RV timer went to zero) and T1 668 * (time of pending report, i.e. now). 669 * Used for computing MLDv2 state-change reports. Several refcounts 670 * are maintained here to optimize for common use-cases. 671 */ 672 struct in6m_st { 673 uint16_t iss_fmode; /* MLD filter mode */ 674 uint16_t iss_asm; /* # of ASM listeners */ 675 uint16_t iss_ex; /* # of exclusive members */ 676 uint16_t iss_in; /* # of inclusive members */ 677 uint16_t iss_rec; /* # of recorded sources */ 678 } in6m_st[2]; /* state at t0, t1 */ 679 }; 680 681 /* 682 * Helper function to derive the filter mode on a source entry 683 * from its internal counters. Predicates are: 684 * A source is only excluded if all listeners exclude it. 685 * A source is only included if no listeners exclude it, 686 * and at least one listener includes it. 687 * May be used by ifmcstat(8). 688 */ 689 static __inline uint8_t 690 im6s_get_mode(const struct in6_multi *inm, const struct ip6_msource *ims, 691 uint8_t t) 692 { 693 694 t = !!t; 695 if (inm->in6m_st[t].iss_ex > 0 && 696 inm->in6m_st[t].iss_ex == ims->im6s_st[t].ex) 697 return (MCAST_EXCLUDE); 698 else if (ims->im6s_st[t].in > 0 && ims->im6s_st[t].ex == 0) 699 return (MCAST_INCLUDE); 700 return (MCAST_UNDEFINED); 701 } 702 703 #ifdef _KERNEL 704 705 /* 706 * Lock macros for IPv6 layer multicast address lists. IPv6 lock goes 707 * before link layer multicast locks in the lock order. In most cases, 708 * consumers of IN_*_MULTI() macros should acquire the locks before 709 * calling them; users of the in_{add,del}multi() functions should not. 710 */ 711 extern struct mtx in6_multi_mtx; 712 #define IN6_MULTI_LOCK() mtx_lock(&in6_multi_mtx) 713 #define IN6_MULTI_UNLOCK() mtx_unlock(&in6_multi_mtx) 714 #define IN6_MULTI_LOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_OWNED) 715 #define IN6_MULTI_UNLOCK_ASSERT() mtx_assert(&in6_multi_mtx, MA_NOTOWNED) 716 717 /* 718 * Look up an in6_multi record for an IPv6 multicast address 719 * on the interface ifp. 720 * If no record found, return NULL. 721 * 722 * SMPng: The IN6_MULTI_LOCK and IF_ADDR_LOCK on ifp must be held. 723 */ 724 static __inline struct in6_multi * 725 in6m_lookup_locked(struct ifnet *ifp, const struct in6_addr *mcaddr) 726 { 727 struct ifmultiaddr *ifma; 728 struct in6_multi *inm; 729 730 IN6_MULTI_LOCK_ASSERT(); 731 IF_ADDR_LOCK_ASSERT(ifp); 732 733 inm = NULL; 734 TAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) { 735 if (ifma->ifma_addr->sa_family == AF_INET6) { 736 inm = (struct in6_multi *)ifma->ifma_protospec; 737 if (IN6_ARE_ADDR_EQUAL(&inm->in6m_addr, mcaddr)) 738 break; 739 inm = NULL; 740 } 741 } 742 return (inm); 743 } 744 745 /* 746 * Wrapper for in6m_lookup_locked(). 747 * 748 * SMPng: Assumes that neithr the IN6_MULTI_LOCK() or IF_ADDR_LOCK() are held. 749 */ 750 static __inline struct in6_multi * 751 in6m_lookup(struct ifnet *ifp, const struct in6_addr *mcaddr) 752 { 753 struct in6_multi *inm; 754 755 IN6_MULTI_LOCK(); 756 IF_ADDR_RLOCK(ifp); 757 inm = in6m_lookup_locked(ifp, mcaddr); 758 IF_ADDR_RUNLOCK(ifp); 759 IN6_MULTI_UNLOCK(); 760 761 return (inm); 762 } 763 764 /* Acquire an in6_multi record. */ 765 static __inline void 766 in6m_acquire_locked(struct in6_multi *inm) 767 { 768 769 IN6_MULTI_LOCK_ASSERT(); 770 ++inm->in6m_refcount; 771 } 772 773 struct ip6_moptions; 774 struct sockopt; 775 776 /* Multicast KPIs. */ 777 int im6o_mc_filter(const struct ip6_moptions *, const struct ifnet *, 778 const struct sockaddr *, const struct sockaddr *); 779 int in6_mc_join(struct ifnet *, const struct in6_addr *, 780 struct in6_mfilter *, struct in6_multi **, int); 781 int in6_mc_join_locked(struct ifnet *, const struct in6_addr *, 782 struct in6_mfilter *, struct in6_multi **, int); 783 int in6_mc_leave(struct in6_multi *, struct in6_mfilter *); 784 int in6_mc_leave_locked(struct in6_multi *, struct in6_mfilter *); 785 void in6m_clear_recorded(struct in6_multi *); 786 void in6m_commit(struct in6_multi *); 787 void in6m_print(const struct in6_multi *); 788 int in6m_record_source(struct in6_multi *, const struct in6_addr *); 789 void in6m_release_locked(struct in6_multi *); 790 void ip6_freemoptions(struct ip6_moptions *); 791 int ip6_getmoptions(struct inpcb *, struct sockopt *); 792 int ip6_setmoptions(struct inpcb *, struct sockopt *); 793 794 /* Legacy KAME multicast KPIs. */ 795 struct in6_multi_mship * 796 in6_joingroup(struct ifnet *, struct in6_addr *, int *, int); 797 int in6_leavegroup(struct in6_multi_mship *); 798 799 /* flags to in6_update_ifa */ 800 #define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */ 801 802 int in6_mask2len(struct in6_addr *, u_char *); 803 int in6_control(struct socket *, u_long, caddr_t, struct ifnet *, 804 struct thread *); 805 int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, 806 struct in6_ifaddr *, int); 807 void in6_purgeaddr(struct ifaddr *); 808 int in6if_do_dad(struct ifnet *); 809 void in6_purgeif(struct ifnet *); 810 void in6_savemkludge(struct in6_ifaddr *); 811 void *in6_domifattach(struct ifnet *); 812 void in6_domifdetach(struct ifnet *, void *); 813 void in6_setmaxmtu(void); 814 int in6_if2idlen(struct ifnet *); 815 struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int); 816 struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, struct in6_addr *); 817 struct in6_ifaddr *in6ifa_llaonifp(struct ifnet *); 818 char *ip6_sprintf(char *, const struct in6_addr *); 819 int in6_addr2zoneid(struct ifnet *, struct in6_addr *, u_int32_t *); 820 int in6_matchlen(struct in6_addr *, struct in6_addr *); 821 int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int); 822 void in6_prefixlen2mask(struct in6_addr *, int); 823 int in6_prefix_ioctl(struct socket *, u_long, caddr_t, 824 struct ifnet *); 825 int in6_prefix_add_ifid(int, struct in6_ifaddr *); 826 void in6_prefix_remove_ifid(int, struct in6_ifaddr *); 827 void in6_purgeprefix(struct ifnet *); 828 void in6_ifremloop(struct ifaddr *); 829 void in6_ifaddloop(struct ifaddr *); 830 831 int in6_is_addr_deprecated(struct sockaddr_in6 *); 832 int in6_src_ioctl(u_long, caddr_t); 833 834 /* 835 * Extended API for IPv6 FIB support. 836 */ 837 void in6_rtredirect(struct sockaddr *, struct sockaddr *, struct sockaddr *, 838 int, struct sockaddr *, u_int); 839 int in6_rtrequest(int, struct sockaddr *, struct sockaddr *, 840 struct sockaddr *, int, struct rtentry **, u_int); 841 void in6_rtalloc(struct route_in6 *, u_int); 842 void in6_rtalloc_ign(struct route_in6 *, u_long, u_int); 843 struct rtentry *in6_rtalloc1(struct sockaddr *, int, u_long, u_int); 844 #endif /* _KERNEL */ 845 846 #endif /* _NETINET6_IN6_VAR_H_ */ 847