in6_var.h revision 1.93
1/* $NetBSD: in6_var.h,v 1.93 2017/02/23 07:57:10 ozaki-r 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#include <sys/ioccom.h> 69 70/* 71 * Interface address, Internet version. One of these structures 72 * is allocated for each interface with an Internet address. 73 * The ifaddr structure contains the protocol-independent part 74 * of the structure and is assumed to be first. 75 */ 76 77/* 78 * pltime/vltime are just for future reference (required to implements 2 79 * hour rule for hosts). they should never be modified by nd6_timeout or 80 * anywhere else. 81 * userland -> kernel: accept pltime/vltime 82 * kernel -> userland: throw up everything 83 * in kernel: modify preferred/expire only 84 */ 85struct in6_addrlifetime { 86 time_t ia6t_expire; /* valid lifetime expiration time */ 87 time_t ia6t_preferred; /* preferred lifetime expiration time */ 88 u_int32_t ia6t_vltime; /* valid lifetime */ 89 u_int32_t ia6t_pltime; /* prefix lifetime */ 90}; 91 92struct lltable; 93struct nd_ifinfo; 94struct in6_ifextra { 95 struct in6_ifstat *in6_ifstat; 96 struct icmp6_ifstat *icmp6_ifstat; 97 struct nd_ifinfo *nd_ifinfo; 98 struct scope6_id *scope6_id; 99 int nprefixes; 100 int ndefrouters; 101 struct lltable *lltable; 102}; 103 104LIST_HEAD(in6_multihead, in6_multi); 105struct in6_ifaddr { 106 struct ifaddr ia_ifa; /* protocol-independent info */ 107#define ia_ifp ia_ifa.ifa_ifp 108#define ia_flags ia_ifa.ifa_flags 109 struct sockaddr_in6 ia_addr; /* interface address */ 110 struct sockaddr_in6 ia_net; /* network number of interface */ 111 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 112 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 113 u_int32_t ia_plen; /* prefix length */ 114 /* DEPRECATED. Keep it to avoid breaking kvm(3) users */ 115 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 116 /* DEPRECATED. Keep it to avoid breaking kvm(3) users */ 117 struct in6_multihead _ia6_multiaddrs; 118 /* list of multicast addresses */ 119 int ia6_flags; 120 121 struct in6_addrlifetime ia6_lifetime; 122 time_t ia6_createtime; /* the creation time of this address, which is 123 * currently used for temporary addresses only. 124 */ 125 time_t ia6_updatetime; 126 127 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 128 struct nd_prefix *ia6_ndpr; 129 130 /* multicast addresses joined from the kernel */ 131 LIST_HEAD(, in6_multi_mship) ia6_memberships; 132 133#ifdef _KERNEL 134 struct pslist_entry ia6_pslist_entry; 135#endif 136}; 137 138#ifdef _KERNEL 139static inline void 140ia6_acquire(struct in6_ifaddr *ia, struct psref *psref) 141{ 142 143 KASSERT(ia != NULL); 144 ifa_acquire(&ia->ia_ifa, psref); 145} 146 147static inline void 148ia6_release(struct in6_ifaddr *ia, struct psref *psref) 149{ 150 151 if (ia == NULL) 152 return; 153 ifa_release(&ia->ia_ifa, psref); 154} 155#endif 156 157/* control structure to manage address selection policy */ 158struct 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 */ 169struct in6_ifstat { 170 u_quad_t ifs6_in_receive; /* # of total input datagram */ 171 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 172 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 173 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 174 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 175 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 176 /* NOTE: increment on final dst if */ 177 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 178 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 179 /* NOTE: fragment timeout is not here */ 180 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 181 /* NOTE: increment on final dst if */ 182 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 183 /* NOTE: increment on outgoing if */ 184 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 185 /* NOTE: does not include forwrads */ 186 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 187 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 188 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 189 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 190 /* NOTE: this is # after fragment */ 191 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 192 /* NOTE: increment on final dst if */ 193 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 194 /* NOTE: this is # after reass */ 195 /* NOTE: increment on final dst if */ 196 u_quad_t ifs6_reass_fail; /* # of reass failures */ 197 /* NOTE: may not be packet count */ 198 /* NOTE: increment on final dst if */ 199 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 200 u_quad_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 */ 207struct icmp6_ifstat { 208 /* 209 * Input statistics 210 */ 211 /* ipv6IfIcmpInMsgs, total # of input messages */ 212 u_quad_t ifs6_in_msg; 213 /* ipv6IfIcmpInErrors, # of input error messages */ 214 u_quad_t ifs6_in_error; 215 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 216 u_quad_t ifs6_in_dstunreach; 217 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 218 u_quad_t ifs6_in_adminprohib; 219 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 220 u_quad_t ifs6_in_timeexceed; 221 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 222 u_quad_t ifs6_in_paramprob; 223 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 224 u_quad_t ifs6_in_pkttoobig; 225 /* ipv6IfIcmpInEchos, # of input echo requests */ 226 u_quad_t ifs6_in_echo; 227 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 228 u_quad_t ifs6_in_echoreply; 229 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 230 u_quad_t ifs6_in_routersolicit; 231 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 232 u_quad_t ifs6_in_routeradvert; 233 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 234 u_quad_t ifs6_in_neighborsolicit; 235 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 236 u_quad_t ifs6_in_neighboradvert; 237 /* ipv6IfIcmpInRedirects, # of input redirects */ 238 u_quad_t ifs6_in_redirect; 239 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 240 u_quad_t ifs6_in_mldquery; 241 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 242 u_quad_t ifs6_in_mldreport; 243 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 244 u_quad_t ifs6_in_mlddone; 245 246 /* 247 * Output statistics. We should solve unresolved routing problem... 248 */ 249 /* ipv6IfIcmpOutMsgs, total # of output messages */ 250 u_quad_t ifs6_out_msg; 251 /* ipv6IfIcmpOutErrors, # of output error messages */ 252 u_quad_t ifs6_out_error; 253 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 254 u_quad_t ifs6_out_dstunreach; 255 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 256 u_quad_t ifs6_out_adminprohib; 257 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 258 u_quad_t ifs6_out_timeexceed; 259 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 260 u_quad_t ifs6_out_paramprob; 261 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 262 u_quad_t ifs6_out_pkttoobig; 263 /* ipv6IfIcmpOutEchos, # of output echo requests */ 264 u_quad_t ifs6_out_echo; 265 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 266 u_quad_t ifs6_out_echoreply; 267 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 268 u_quad_t ifs6_out_routersolicit; 269 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 270 u_quad_t ifs6_out_routeradvert; 271 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 272 u_quad_t ifs6_out_neighborsolicit; 273 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 274 u_quad_t ifs6_out_neighboradvert; 275 /* ipv6IfIcmpOutRedirects, # of output redirects */ 276 u_quad_t ifs6_out_redirect; 277 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 278 u_quad_t ifs6_out_mldquery; 279 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 280 u_quad_t ifs6_out_mldreport; 281 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 282 u_quad_t ifs6_out_mlddone; 283}; 284 285/* 286 * If you make changes that change the size of in6_ifreq, 287 * make sure you fix compat/netinet6/in6_var.h 288 */ 289struct in6_ifreq { 290 char ifr_name[IFNAMSIZ]; 291 union { 292 struct sockaddr_in6 ifru_addr; 293 struct sockaddr_in6 ifru_dstaddr; 294 short ifru_flags; 295 int ifru_flags6; 296 int ifru_metric; 297 void * ifru_data; 298 struct in6_addrlifetime ifru_lifetime; 299 struct in6_ifstat ifru_stat; 300 struct icmp6_ifstat ifru_icmp6stat; 301 } ifr_ifru; 302}; 303 304struct in6_aliasreq { 305 char ifra_name[IFNAMSIZ]; 306 struct sockaddr_in6 ifra_addr; 307 struct sockaddr_in6 ifra_dstaddr; 308 struct sockaddr_in6 ifra_prefixmask; 309 int ifra_flags; 310 struct in6_addrlifetime ifra_lifetime; 311}; 312 313/* prefix type macro */ 314#define IN6_PREFIX_ND 1 315#define IN6_PREFIX_RR 2 316 317/* 318 * prefix related flags passed between kernel(NDP related part) and 319 * user land command(ifconfig) and daemon(rtadvd). 320 * Note: We originally intended to use prf_ra{} only within in6_prflags{}, but 321 * it was (probably unintentionally) used in nd6.h as well. Since C++ does 322 * not allow such a reference, prf_ra{} was then moved outside. In general, 323 * however, this structure should not be used directly. 324 */ 325struct prf_ra { 326 u_int32_t onlink : 1; 327 u_int32_t autonomous : 1; 328 u_int32_t router : 1; 329 u_int32_t reserved : 5; 330}; 331 332struct in6_prflags { 333 struct prf_ra prf_ra; 334 u_char prf_reserved1; 335 u_short prf_reserved2; 336 /* want to put this on 4byte offset */ 337 struct prf_rr { 338 u_int32_t decrvalid : 1; 339 u_int32_t decrprefd : 1; 340 u_int32_t reserved : 6; 341 } prf_rr; 342 u_char prf_reserved3; 343 u_short prf_reserved4; 344}; 345 346struct in6_prefixreq { 347 char ipr_name[IFNAMSIZ]; 348 u_char ipr_origin; 349 u_char ipr_plen; 350 u_int32_t ipr_vltime; 351 u_int32_t ipr_pltime; 352 struct in6_prflags ipr_flags; 353 struct sockaddr_in6 ipr_prefix; 354}; 355 356#define PR_ORIG_RA 0 357#define PR_ORIG_RR 1 358#define PR_ORIG_STATIC 2 359#define PR_ORIG_KERNEL 3 360 361#define ipr_raf_onlink ipr_flags.prf_ra.onlink 362#define ipr_raf_auto ipr_flags.prf_ra.autonomous 363 364#define ipr_statef_onlink ipr_flags.prf_state.onlink 365 366#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 367#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 368 369struct in6_rrenumreq { 370 char irr_name[IFNAMSIZ]; 371 u_char irr_origin; 372 u_char irr_m_len; /* match len for matchprefix */ 373 u_char irr_m_minlen; /* minlen for matching prefix */ 374 u_char irr_m_maxlen; /* maxlen for matching prefix */ 375 u_char irr_u_uselen; /* uselen for adding prefix */ 376 u_char irr_u_keeplen; /* keeplen from matching prefix */ 377 struct irr_raflagmask { 378 u_int32_t onlink : 1; 379 u_int32_t autonomous : 1; 380 u_int32_t reserved : 6; 381 } irr_raflagmask; 382 u_int32_t irr_vltime; 383 u_int32_t irr_pltime; 384 struct in6_prflags irr_flags; 385 struct sockaddr_in6 irr_matchprefix; 386 struct sockaddr_in6 irr_useprefix; 387}; 388 389#define irr_raf_mask_onlink irr_raflagmask.onlink 390#define irr_raf_mask_auto irr_raflagmask.autonomous 391#define irr_raf_mask_reserved irr_raflagmask.reserved 392 393#define irr_raf_onlink irr_flags.prf_ra.onlink 394#define irr_raf_auto irr_flags.prf_ra.autonomous 395 396#define irr_statef_onlink irr_flags.prf_state.onlink 397 398#define irr_rrf irr_flags.prf_rr 399#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 400#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 401 402/* 403 * Given a pointer to an in6_ifaddr (ifaddr), 404 * return a pointer to the addr as a sockaddr_in6 405 */ 406#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 407#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 408#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 409#define IA6_SIN6(ia) (&((ia)->ia_addr)) 410#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 411#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 412#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 413 414#ifdef _KERNEL 415#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 416 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 417 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 418 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 419 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 420#endif 421 422#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 423#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 424 425#ifdef _KERNEL 426/* 427 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 428 * we do not shift numbers for binary compatibility. 429 */ 430#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 431#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 432#endif 433 434#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 435#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 436 437#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 438/* 26 was OSIOCAIFADDR_IN6 */ 439 440/* 70 was OSIOCSIFPHYADDR_IN6 */ 441#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 442#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 443 444#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 445 446#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 447#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) 448#ifdef _KERNEL 449#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 450#endif 451#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 452#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 453#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 454#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 455/* 81 was old SIOCGIFALIFETIME_IN6 */ 456#if 0 457/* withdrawn - do not reuse number 82 */ 458#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 459#endif 460#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 461#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 462 463#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 464#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 465 466#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 467 468#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 469#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 470#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 471#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 472#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 473 struct in6_rrenumreq) /* change */ 474#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 475 struct in6_rrenumreq) /* set global */ 476#define SIOCGIFALIFETIME_IN6 _IOWR('i', 106, struct in6_ifreq) 477#define SIOCAIFADDR_IN6 _IOW('i', 107, struct in6_aliasreq) 478#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 479#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq) 480#define SIOCSIFPHYADDR_IN6 _IOW('i', 110, struct in6_aliasreq) 481 482 483/* XXX: Someone decided to switch to 'u' here for unknown reasons! */ 484#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 485 struct sioc_sg_req6) /* get s,g pkt cnt */ 486#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 487 struct sioc_mif_req6) /* get pkt cnt per if */ 488#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy) 489#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy) 490 491#define IN6_IFF_ANYCAST 0x01 /* anycast address */ 492#define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 493#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 494#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 495#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 496#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 497 * (used only at first SIOC* call) 498 */ 499#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 500#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ 501 502#define IN6_IFFBITS \ 503 "\020\1ANYCAST\2TENTATIVE\3DUPLICATED\4DETACHED\5DEPRECATED\6NODAD" \ 504 "\7AUTOCONF\10TEMPORARY" 505 506 507/* do not input/output */ 508#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 509 510#ifdef _KERNEL 511#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 512#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 513#endif 514 515#ifdef _KERNEL 516 517#include <sys/mutex.h> 518#include <sys/pserialize.h> 519 520#include <net/pktqueue.h> 521 522extern pktqueue_t *ip6_pktq; 523 524MALLOC_DECLARE(M_IP6OPT); 525 526extern struct pslist_head in6_ifaddr_list; 527extern kmutex_t in6_ifaddr_lock; 528 529#define IN6_ADDRLIST_ENTRY_INIT(__ia) \ 530 PSLIST_ENTRY_INIT((__ia), ia6_pslist_entry) 531#define IN6_ADDRLIST_ENTRY_DESTROY(__ia) \ 532 PSLIST_ENTRY_DESTROY((__ia), ia6_pslist_entry) 533#define IN6_ADDRLIST_READER_EMPTY() \ 534 (PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 535 ia6_pslist_entry) == NULL) 536#define IN6_ADDRLIST_READER_FIRST() \ 537 PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 538 ia6_pslist_entry) 539#define IN6_ADDRLIST_READER_NEXT(__ia) \ 540 PSLIST_READER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry) 541#define IN6_ADDRLIST_READER_FOREACH(__ia) \ 542 PSLIST_READER_FOREACH((__ia), &in6_ifaddr_list, \ 543 struct in6_ifaddr, ia6_pslist_entry) 544#define IN6_ADDRLIST_WRITER_INSERT_HEAD(__ia) \ 545 PSLIST_WRITER_INSERT_HEAD(&in6_ifaddr_list, (__ia), ia6_pslist_entry) 546#define IN6_ADDRLIST_WRITER_REMOVE(__ia) \ 547 PSLIST_WRITER_REMOVE((__ia), ia6_pslist_entry) 548#define IN6_ADDRLIST_WRITER_FOREACH(__ia) \ 549 PSLIST_WRITER_FOREACH((__ia), &in6_ifaddr_list, struct in6_ifaddr, \ 550 ia6_pslist_entry) 551#define IN6_ADDRLIST_WRITER_FIRST() \ 552 PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 553 ia6_pslist_entry) 554#define IN6_ADDRLIST_WRITER_NEXT(__ia) \ 555 PSLIST_WRITER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry) 556#define IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia, __new) \ 557 PSLIST_WRITER_INSERT_AFTER((__ia), (__new), ia6_pslist_entry) 558#define IN6_ADDRLIST_WRITER_EMPTY() \ 559 (PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 560 ia6_pslist_entry) == NULL) 561#define IN6_ADDRLIST_WRITER_INSERT_TAIL(__new) \ 562 do { \ 563 if (IN6_ADDRLIST_WRITER_EMPTY()) { \ 564 IN6_ADDRLIST_WRITER_INSERT_HEAD((__new)); \ 565 } else { \ 566 struct in6_ifaddr *__ia; \ 567 IN6_ADDRLIST_WRITER_FOREACH(__ia) { \ 568 if (IN6_ADDRLIST_WRITER_NEXT(__ia) == NULL) { \ 569 IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia,\ 570 (__new)); \ 571 break; \ 572 } \ 573 } \ 574 } \ 575 } while (0) 576 577#define in6_ifstat_inc(ifp, tag) \ 578do { \ 579 if (ifp) \ 580 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 581} while (/*CONSTCOND*/ 0) 582 583extern const struct in6_addr zeroin6_addr; 584extern const u_char inet6ctlerrmap[]; 585extern unsigned long in6_maxmtu; 586extern bool in6_present; 587extern callout_t in6_tmpaddrtimer_ch; 588 589/* 590 * Macro for finding the internet address structure (in6_ifaddr) corresponding 591 * to a given interface (ifnet structure). 592 */ 593static inline struct in6_ifaddr * 594in6_get_ia_from_ifp(struct ifnet *ifp) 595{ 596 struct ifaddr *ifa; 597 598 IFADDR_READER_FOREACH(ifa, ifp) { 599 if (ifa->ifa_addr->sa_family == AF_INET6) 600 break; 601 } 602 return (struct in6_ifaddr *)ifa; 603} 604 605static inline struct in6_ifaddr * 606in6_get_ia_from_ifp_psref(struct ifnet *ifp, struct psref *psref) 607{ 608 struct in6_ifaddr *ia; 609 int s; 610 611 s = pserialize_read_enter(); 612 ia = in6_get_ia_from_ifp(ifp); 613 if (ia != NULL) 614 ia6_acquire(ia, psref); 615 pserialize_read_exit(s); 616 617 return ia; 618} 619#endif /* _KERNEL */ 620 621/* 622 * Multi-cast membership entry. One for each group/ifp that a PCB 623 * belongs to. 624 */ 625struct in6_multi_mship { 626 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 627 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 628}; 629 630struct in6_multi { 631 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 632 struct in6_addr in6m_addr; /* IP6 multicast address */ 633 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 634 /* DEPRECATED. Keep it to avoid breaking kvm(3) users */ 635 struct in6_ifaddr *_in6m_ia; /* back pointer to in6_ifaddr */ 636 u_int in6m_refcount; /* # membership claims by sockets */ 637 u_int in6m_state; /* state of the membership */ 638 int in6m_timer; /* delay to send the 1st report */ 639 struct timeval in6m_timer_expire; /* when the timer expires */ 640 callout_t in6m_timer_ch; 641}; 642 643#define IN6M_TIMER_UNDEF -1 644 645 646#ifdef _KERNEL 647/* flags to in6_update_ifa */ 648#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */ 649 650#if 0 651/* 652 * Macros for looking up the in6_multi_mship record for a given IP6 multicast 653 * address on a given interface. If no matching record is found, "imm" 654 * returns NULL. 655 */ 656static inline struct in6_multi_mship * 657in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp, 658 struct ip6_moptions *imop) 659{ 660 struct in6_multi_mship *imm; 661 662 LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) { 663 if (imm->i6mm_maddr->in6m_ifp != ifp) 664 continue; 665 if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr, 666 addr)) 667 break; 668 } 669 return imm; 670} 671 672#define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \ 673/* struct in6_addr __addr; */ \ 674/* struct ifnet *__ifp; */ \ 675/* struct ip6_moptions *__imop */ \ 676/* struct in6_multi_mship *__imm; */ \ 677do { \ 678 (__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \ 679} while (/*CONSTCOND*/ 0) 680#endif 681 682void in6_init(void); 683 684struct in6_multi * 685 in6_lookup_multi(const struct in6_addr *, const struct ifnet *); 686void in6_purge_multi(struct ifnet *); 687struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, 688 int *, int); 689void in6_delmulti(struct in6_multi *); 690struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, 691 int *, int); 692int in6_leavegroup(struct in6_multi_mship *); 693int in6_mask2len(struct in6_addr *, u_char *); 694int in6_control(struct socket *, u_long, void *, struct ifnet *); 695int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, int); 696void in6_purgeaddr(struct ifaddr *); 697void in6_purgeif(struct ifnet *); 698void in6_setmaxmtu (void); 699int in6_if2idlen (struct ifnet *); 700void *in6_domifattach(struct ifnet *); 701void in6_domifdetach(struct ifnet *, void *); 702void in6_ifremlocal(struct ifaddr *); 703void in6_ifaddlocal(struct ifaddr *); 704struct in6_ifaddr * 705 in6ifa_ifpforlinklocal(const struct ifnet *, int); 706struct in6_ifaddr * 707 in6ifa_ifpforlinklocal_psref(const struct ifnet *, int, struct psref *); 708struct in6_ifaddr * 709 in6ifa_ifpwithaddr(const struct ifnet *, const struct in6_addr *); 710struct in6_ifaddr * 711 in6ifa_ifpwithaddr_psref(const struct ifnet *, const struct in6_addr *, 712 struct psref *); 713struct in6_ifaddr *in6ifa_ifwithaddr(const struct in6_addr *, uint32_t); 714int in6_matchlen(struct in6_addr *, struct in6_addr *); 715int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int); 716void in6_prefixlen2mask(struct in6_addr *, int); 717void in6_purgeprefix(struct ifnet *); 718 719int ip6flow_fastforward(struct mbuf **); /* IPv6 fast forward routine */ 720 721int in6_src_ioctl(u_long, void *); 722int in6_is_addr_deprecated(struct sockaddr_in6 *); 723struct in6pcb; 724 725#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable) 726 727void in6_sysctl_multicast_setup(struct sysctllog **); 728 729#endif /* _KERNEL */ 730 731#endif /* !_NETINET6_IN6_VAR_H_ */ 732