in6_var.h revision 1.69
1/* $NetBSD: in6_var.h,v 1.69 2014/06/05 23:48:16 rmind 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 int nprefixes; 98 int ndefrouters; 99}; 100 101struct in6_ifaddr { 102 struct ifaddr ia_ifa; /* protocol-independent info */ 103#define ia_ifp ia_ifa.ifa_ifp 104#define ia_flags ia_ifa.ifa_flags 105 struct sockaddr_in6 ia_addr; /* interface address */ 106 struct sockaddr_in6 ia_net; /* network number of interface */ 107 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 108 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 109 u_int32_t ia_plen; /* prefix length */ 110 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 111 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; 112 /* list of multicast addresses */ 113 int ia6_flags; 114 115 struct in6_addrlifetime ia6_lifetime; 116 time_t ia6_createtime; /* the creation time of this address, which is 117 * currently used for temporary addresses only. 118 */ 119 time_t ia6_updatetime; 120 121 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 122 struct nd_prefix *ia6_ndpr; 123 124 /* multicast addresses joined from the kernel */ 125 LIST_HEAD(, in6_multi_mship) ia6_memberships; 126}; 127 128/* control structure to manage address selection policy */ 129struct in6_addrpolicy { 130 struct sockaddr_in6 addr; /* prefix address */ 131 struct sockaddr_in6 addrmask; /* prefix mask */ 132 int preced; /* precedence */ 133 int label; /* matching label */ 134 u_quad_t use; /* statistics */ 135}; 136 137/* 138 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 139 */ 140struct in6_ifstat { 141 u_quad_t ifs6_in_receive; /* # of total input datagram */ 142 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 143 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 144 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 145 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 146 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 147 /* NOTE: increment on final dst if */ 148 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 149 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 150 /* NOTE: fragment timeout is not here */ 151 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 152 /* NOTE: increment on final dst if */ 153 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 154 /* NOTE: increment on outgoing if */ 155 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 156 /* NOTE: does not include forwrads */ 157 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 158 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 159 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 160 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 161 /* NOTE: this is # after fragment */ 162 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 163 /* NOTE: increment on final dst if */ 164 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 165 /* NOTE: this is # after reass */ 166 /* NOTE: increment on final dst if */ 167 u_quad_t ifs6_reass_fail; /* # of reass failures */ 168 /* NOTE: may not be packet count */ 169 /* NOTE: increment on final dst if */ 170 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 171 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 172}; 173 174/* 175 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 176 * XXX: I'm not sure if this file is the right place for this structure... 177 */ 178struct icmp6_ifstat { 179 /* 180 * Input statistics 181 */ 182 /* ipv6IfIcmpInMsgs, total # of input messages */ 183 u_quad_t ifs6_in_msg; 184 /* ipv6IfIcmpInErrors, # of input error messages */ 185 u_quad_t ifs6_in_error; 186 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 187 u_quad_t ifs6_in_dstunreach; 188 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 189 u_quad_t ifs6_in_adminprohib; 190 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 191 u_quad_t ifs6_in_timeexceed; 192 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 193 u_quad_t ifs6_in_paramprob; 194 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 195 u_quad_t ifs6_in_pkttoobig; 196 /* ipv6IfIcmpInEchos, # of input echo requests */ 197 u_quad_t ifs6_in_echo; 198 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 199 u_quad_t ifs6_in_echoreply; 200 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 201 u_quad_t ifs6_in_routersolicit; 202 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 203 u_quad_t ifs6_in_routeradvert; 204 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 205 u_quad_t ifs6_in_neighborsolicit; 206 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 207 u_quad_t ifs6_in_neighboradvert; 208 /* ipv6IfIcmpInRedirects, # of input redirects */ 209 u_quad_t ifs6_in_redirect; 210 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 211 u_quad_t ifs6_in_mldquery; 212 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 213 u_quad_t ifs6_in_mldreport; 214 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 215 u_quad_t ifs6_in_mlddone; 216 217 /* 218 * Output statistics. We should solve unresolved routing problem... 219 */ 220 /* ipv6IfIcmpOutMsgs, total # of output messages */ 221 u_quad_t ifs6_out_msg; 222 /* ipv6IfIcmpOutErrors, # of output error messages */ 223 u_quad_t ifs6_out_error; 224 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 225 u_quad_t ifs6_out_dstunreach; 226 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 227 u_quad_t ifs6_out_adminprohib; 228 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 229 u_quad_t ifs6_out_timeexceed; 230 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 231 u_quad_t ifs6_out_paramprob; 232 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 233 u_quad_t ifs6_out_pkttoobig; 234 /* ipv6IfIcmpOutEchos, # of output echo requests */ 235 u_quad_t ifs6_out_echo; 236 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 237 u_quad_t ifs6_out_echoreply; 238 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 239 u_quad_t ifs6_out_routersolicit; 240 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 241 u_quad_t ifs6_out_routeradvert; 242 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 243 u_quad_t ifs6_out_neighborsolicit; 244 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 245 u_quad_t ifs6_out_neighboradvert; 246 /* ipv6IfIcmpOutRedirects, # of output redirects */ 247 u_quad_t ifs6_out_redirect; 248 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 249 u_quad_t ifs6_out_mldquery; 250 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 251 u_quad_t ifs6_out_mldreport; 252 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 253 u_quad_t ifs6_out_mlddone; 254}; 255 256/* 257 * If you make changes that change the size of in6_ifreq, 258 * make sure you fix compat/netinet6/in6_var.h 259 */ 260struct in6_ifreq { 261 char ifr_name[IFNAMSIZ]; 262 union { 263 struct sockaddr_in6 ifru_addr; 264 struct sockaddr_in6 ifru_dstaddr; 265 short ifru_flags; 266 int ifru_flags6; 267 int ifru_metric; 268 void * ifru_data; 269 struct in6_addrlifetime ifru_lifetime; 270 struct in6_ifstat ifru_stat; 271 struct icmp6_ifstat ifru_icmp6stat; 272 } ifr_ifru; 273}; 274 275struct in6_aliasreq { 276 char ifra_name[IFNAMSIZ]; 277 struct sockaddr_in6 ifra_addr; 278 struct sockaddr_in6 ifra_dstaddr; 279 struct sockaddr_in6 ifra_prefixmask; 280 int ifra_flags; 281 struct in6_addrlifetime ifra_lifetime; 282}; 283 284/* prefix type macro */ 285#define IN6_PREFIX_ND 1 286#define IN6_PREFIX_RR 2 287 288/* 289 * prefix related flags passed between kernel(NDP related part) and 290 * user land command(ifconfig) and daemon(rtadvd). 291 * Note: We originally intended to use prf_ra{} only within in6_prflags{}, but 292 * it was (probably unintentionally) used in nd6.h as well. Since C++ does 293 * not allow such a reference, prf_ra{} was then moved outside. In general, 294 * however, this structure should not be used directly. 295 */ 296struct prf_ra { 297 u_int32_t onlink : 1; 298 u_int32_t autonomous : 1; 299 u_int32_t router : 1; 300 u_int32_t reserved : 5; 301}; 302 303struct in6_prflags { 304 struct prf_ra prf_ra; 305 u_char prf_reserved1; 306 u_short prf_reserved2; 307 /* want to put this on 4byte offset */ 308 struct prf_rr { 309 u_int32_t decrvalid : 1; 310 u_int32_t decrprefd : 1; 311 u_int32_t reserved : 6; 312 } prf_rr; 313 u_char prf_reserved3; 314 u_short prf_reserved4; 315}; 316 317struct in6_prefixreq { 318 char ipr_name[IFNAMSIZ]; 319 u_char ipr_origin; 320 u_char ipr_plen; 321 u_int32_t ipr_vltime; 322 u_int32_t ipr_pltime; 323 struct in6_prflags ipr_flags; 324 struct sockaddr_in6 ipr_prefix; 325}; 326 327#define PR_ORIG_RA 0 328#define PR_ORIG_RR 1 329#define PR_ORIG_STATIC 2 330#define PR_ORIG_KERNEL 3 331 332#define ipr_raf_onlink ipr_flags.prf_ra.onlink 333#define ipr_raf_auto ipr_flags.prf_ra.autonomous 334 335#define ipr_statef_onlink ipr_flags.prf_state.onlink 336 337#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 338#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 339 340struct in6_rrenumreq { 341 char irr_name[IFNAMSIZ]; 342 u_char irr_origin; 343 u_char irr_m_len; /* match len for matchprefix */ 344 u_char irr_m_minlen; /* minlen for matching prefix */ 345 u_char irr_m_maxlen; /* maxlen for matching prefix */ 346 u_char irr_u_uselen; /* uselen for adding prefix */ 347 u_char irr_u_keeplen; /* keeplen from matching prefix */ 348 struct irr_raflagmask { 349 u_int32_t onlink : 1; 350 u_int32_t autonomous : 1; 351 u_int32_t reserved : 6; 352 } irr_raflagmask; 353 u_int32_t irr_vltime; 354 u_int32_t irr_pltime; 355 struct in6_prflags irr_flags; 356 struct sockaddr_in6 irr_matchprefix; 357 struct sockaddr_in6 irr_useprefix; 358}; 359 360#define irr_raf_mask_onlink irr_raflagmask.onlink 361#define irr_raf_mask_auto irr_raflagmask.autonomous 362#define irr_raf_mask_reserved irr_raflagmask.reserved 363 364#define irr_raf_onlink irr_flags.prf_ra.onlink 365#define irr_raf_auto irr_flags.prf_ra.autonomous 366 367#define irr_statef_onlink irr_flags.prf_state.onlink 368 369#define irr_rrf irr_flags.prf_rr 370#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 371#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 372 373/* 374 * Given a pointer to an in6_ifaddr (ifaddr), 375 * return a pointer to the addr as a sockaddr_in6 376 */ 377#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 378#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 379#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 380#define IA6_SIN6(ia) (&((ia)->ia_addr)) 381#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 382#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 383#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 384 385#ifdef _KERNEL 386#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 387 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 388 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 389 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 390 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 391#endif 392 393#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 394#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 395 396#ifdef _KERNEL 397/* 398 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 399 * we do not shift numbers for binary compatibility. 400 */ 401#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 402#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 403#endif 404 405#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 406#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 407 408#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 409/* 26 was OSIOCAIFADDR_IN6 */ 410 411/* 70 was OSIOCSIFPHYADDR_IN6 */ 412#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 413#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 414 415#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 416 417#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 418#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) 419#ifdef _KERNEL 420#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 421#endif 422#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 423#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 424#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 425#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 426/* 81 was old SIOCGIFALIFETIME_IN6 */ 427#if 0 428/* withdrawn - do not reuse number 82 */ 429#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 430#endif 431#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 432#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 433 434#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 435#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 436 437#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 438 439#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 440#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 441#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 442#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 443#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 444 struct in6_rrenumreq) /* change */ 445#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 446 struct in6_rrenumreq) /* set global */ 447#define SIOCGIFALIFETIME_IN6 _IOWR('i', 106, struct in6_ifreq) 448#define SIOCAIFADDR_IN6 _IOW('i', 107, struct in6_aliasreq) 449#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 450#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq) 451#define SIOCSIFPHYADDR_IN6 _IOW('i', 110, struct in6_aliasreq) 452 453 454/* XXX: Someone decided to switch to 'u' here for unknown reasons! */ 455#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 456 struct sioc_sg_req6) /* get s,g pkt cnt */ 457#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 458 struct sioc_mif_req6) /* get pkt cnt per if */ 459#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy) 460#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy) 461 462#define IN6_IFF_ANYCAST 0x01 /* anycast address */ 463#define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 464#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 465#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 466#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 467#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 468 * (used only at first SIOC* call) 469 */ 470#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 471#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ 472 473/* do not input/output */ 474#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 475 476#ifdef _KERNEL 477#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 478#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 479#endif 480 481#ifdef _KERNEL 482 483#include <net/pktqueue.h> 484 485extern pktqueue_t *ip6_pktq; 486 487MALLOC_DECLARE(M_IP6OPT); 488 489extern struct in6_ifaddr *in6_ifaddr; 490 491#define in6_ifstat_inc(ifp, tag) \ 492do { \ 493 if (ifp) \ 494 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 495} while (/*CONSTCOND*/ 0) 496 497extern const struct in6_addr zeroin6_addr; 498extern const u_char inet6ctlerrmap[]; 499extern unsigned long in6_maxmtu; 500extern bool in6_present; 501 502/* 503 * Macro for finding the internet address structure (in6_ifaddr) corresponding 504 * to a given interface (ifnet structure). 505 */ 506static inline struct in6_ifaddr * 507ifp_to_ia6(struct ifnet *ifp) 508{ 509 struct ifaddr *ifa; 510 511 IFADDR_FOREACH(ifa, ifp) { 512 if (ifa->ifa_addr == NULL) 513 continue; 514 if (ifa->ifa_addr->sa_family == AF_INET6) 515 break; 516 } 517 return (struct in6_ifaddr *)ifa; 518} 519 520#define IFP_TO_IA6(__ifp, __ia) \ 521do { \ 522 (__ia) = ifp_to_ia6((__ifp)); \ 523} while (/*CONSTCOND*/0) 524 525 526#endif /* _KERNEL */ 527 528/* 529 * Multi-cast membership entry. One for each group/ifp that a PCB 530 * belongs to. 531 */ 532struct in6_multi_mship { 533 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 534 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 535}; 536 537struct in6_multi { 538 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 539 struct in6_addr in6m_addr; /* IP6 multicast address */ 540 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 541 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 542 u_int in6m_refcount; /* # membership claims by sockets */ 543 u_int in6m_state; /* state of the membership */ 544 int in6m_timer; /* delay to send the 1st report */ 545 struct timeval in6m_timer_expire; /* when the timer expires */ 546 callout_t in6m_timer_ch; 547}; 548 549#define IN6M_TIMER_UNDEF -1 550 551 552#ifdef _KERNEL 553/* flags to in6_update_ifa */ 554#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */ 555 556/* 557 * Structure used by macros below to remember position when stepping through 558 * all of the in6_multi records. 559 */ 560struct in6_multistep { 561 struct in6_ifaddr *i_ia; 562 struct in6_multi *i_in6m; 563}; 564 565/* 566 * Macros for looking up the in6_multi record for a given IP6 multicast 567 * address on a given interface. If no matching record is found, "in6m" 568 * returns NULL. 569 */ 570 571static inline struct in6_multi * 572in6_lookup_multi(struct in6_addr *addr, struct ifnet *ifp) 573{ 574 struct in6_multi *in6m; 575 struct in6_ifaddr *ia; 576 577 if ((ia = ifp_to_ia6(ifp)) == NULL) 578 return NULL; 579 LIST_FOREACH(in6m, &ia->ia6_multiaddrs, in6m_entry) { 580 if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, addr)) 581 break; 582 } 583 return in6m; 584} 585 586#define IN6_LOOKUP_MULTI(__addr, __ifp, __in6m) \ 587/* struct in6_addr __addr; */ \ 588/* struct ifnet *__ifp; */ \ 589/* struct in6_multi *__in6m; */ \ 590do { \ 591 (__in6m) = in6_lookup_multi(&(__addr), (__ifp)); \ 592} while (/*CONSTCOND*/ 0) 593 594/* 595 * Macro to step through all of the in6_multi records, one at a time. 596 * The current position is remembered in "step", which the caller must 597 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 598 * and get the first record. Both macros return a NULL "in6m" when there 599 * are no remaining records. 600 */ 601static inline struct in6_multi * 602in6_next_multi(struct in6_multistep *step) 603{ 604 struct in6_multi *in6m; 605 606 if ((in6m = step->i_in6m) != NULL) { 607 step->i_in6m = LIST_NEXT(in6m, in6m_entry); 608 return in6m; 609 } 610 while (step->i_ia != NULL) { 611 in6m = LIST_FIRST(&step->i_ia->ia6_multiaddrs); 612 step->i_ia = step->i_ia->ia_next; 613 if (in6m != NULL) { 614 step->i_in6m = LIST_NEXT(in6m, in6m_entry); 615 break; 616 } 617 } 618 return in6m; 619} 620 621static inline struct in6_multi * 622in6_first_multi(struct in6_multistep *step) 623{ 624 step->i_ia = in6_ifaddr; 625 step->i_in6m = NULL; 626 return in6_next_multi(step); 627} 628 629#define IN6_NEXT_MULTI(__step, __in6m) \ 630/* struct in6_multistep __step; */ \ 631/* struct in6_multi *__in6m; */ \ 632do { \ 633 (__in6m) = in6_next_multi(&(__step)); \ 634} while (/*CONSTCOND*/ 0) 635 636#define IN6_FIRST_MULTI(__step, __in6m) \ 637/* struct in6_multistep __step; */ \ 638/* struct in6_multi *__in6m */ \ 639do { \ 640 (__in6m) = in6_first_multi(&(__step)); \ 641} while (/*CONSTCOND*/ 0) 642 643 644#if 0 645/* 646 * Macros for looking up the in6_multi_mship record for a given IP6 multicast 647 * address on a given interface. If no matching record is found, "imm" 648 * returns NULL. 649 */ 650static inline struct in6_multi_mship * 651in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp, 652 struct ip6_moptions *imop) 653{ 654 struct in6_multi_mship *imm; 655 656 LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) { 657 if (imm->i6mm_maddr->in6m_ifp != ifp) 658 continue; 659 if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr, 660 addr)) 661 break; 662 } 663 return imm; 664} 665 666#define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \ 667/* struct in6_addr __addr; */ \ 668/* struct ifnet *__ifp; */ \ 669/* struct ip6_moptions *__imop */ \ 670/* struct in6_multi_mship *__imm; */ \ 671do { \ 672 (__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \ 673} while (/*CONSTCOND*/ 0) 674#endif 675 676struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, 677 int *, int); 678void in6_delmulti(struct in6_multi *); 679struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, 680 int *, int); 681int in6_leavegroup(struct in6_multi_mship *); 682int in6_mask2len(struct in6_addr *, u_char *); 683int in6_control(struct socket *, u_long, void *, struct ifnet *, 684 struct lwp *); 685int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, 686 struct in6_ifaddr *, int); 687void in6_purgeaddr(struct ifaddr *); 688int in6if_do_dad(struct ifnet *); 689void in6_purgeif(struct ifnet *); 690void in6_savemkludge(struct in6_ifaddr *); 691void in6_setmaxmtu (void); 692int in6_if2idlen (struct ifnet *); 693void *in6_domifattach(struct ifnet *); 694void in6_domifdetach(struct ifnet *, void *); 695void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *); 696void in6_ifremloop(struct ifaddr *); 697void in6_ifaddloop(struct ifaddr *); 698void in6_createmkludge(struct ifnet *); 699void in6_purgemkludge(struct ifnet *); 700struct in6_ifaddr *in6ifa_ifpforlinklocal(const struct ifnet *, int); 701struct in6_ifaddr *in6ifa_ifpwithaddr(const struct ifnet *, 702 const struct in6_addr *); 703char *ip6_sprintf(const struct in6_addr *); 704int in6_matchlen(struct in6_addr *, struct in6_addr *); 705int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int); 706void in6_prefixlen2mask(struct in6_addr *, int); 707void in6_purgeprefix(struct ifnet *); 708 709int ip6flow_fastforward(struct mbuf **); /* IPv6 fast forward routine */ 710 711int in6_src_ioctl(u_long, void *); 712int in6_is_addr_deprecated(struct sockaddr_in6 *); 713struct in6pcb; 714#endif /* _KERNEL */ 715 716#endif /* !_NETINET6_IN6_VAR_H_ */ 717