in6_var.h revision 1.82
1/* $NetBSD: in6_var.h,v 1.82 2016/07/08 03:40:34 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 struct in6_multihead ia6_multiaddrs; 117 /* list of multicast addresses */ 118 int ia6_flags; 119 120 struct in6_addrlifetime ia6_lifetime; 121 time_t ia6_createtime; /* the creation time of this address, which is 122 * currently used for temporary addresses only. 123 */ 124 time_t ia6_updatetime; 125 126 /* back pointer to the ND prefix (for autoconfigured addresses only) */ 127 struct nd_prefix *ia6_ndpr; 128 129 /* multicast addresses joined from the kernel */ 130 LIST_HEAD(, in6_multi_mship) ia6_memberships; 131 132#ifdef _KERNEL 133 struct pslist_entry ia6_pslist_entry; 134#endif 135}; 136 137/* control structure to manage address selection policy */ 138struct in6_addrpolicy { 139 struct sockaddr_in6 addr; /* prefix address */ 140 struct sockaddr_in6 addrmask; /* prefix mask */ 141 int preced; /* precedence */ 142 int label; /* matching label */ 143 u_quad_t use; /* statistics */ 144}; 145 146/* 147 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 148 */ 149struct in6_ifstat { 150 u_quad_t ifs6_in_receive; /* # of total input datagram */ 151 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 152 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 153 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 154 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 155 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 156 /* NOTE: increment on final dst if */ 157 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 158 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 159 /* NOTE: fragment timeout is not here */ 160 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 161 /* NOTE: increment on final dst if */ 162 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 163 /* NOTE: increment on outgoing if */ 164 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 165 /* NOTE: does not include forwrads */ 166 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 167 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 168 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 169 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 170 /* NOTE: this is # after fragment */ 171 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 172 /* NOTE: increment on final dst if */ 173 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 174 /* NOTE: this is # after reass */ 175 /* NOTE: increment on final dst if */ 176 u_quad_t ifs6_reass_fail; /* # of reass failures */ 177 /* NOTE: may not be packet count */ 178 /* NOTE: increment on final dst if */ 179 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 180 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 181}; 182 183/* 184 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 185 * XXX: I'm not sure if this file is the right place for this structure... 186 */ 187struct icmp6_ifstat { 188 /* 189 * Input statistics 190 */ 191 /* ipv6IfIcmpInMsgs, total # of input messages */ 192 u_quad_t ifs6_in_msg; 193 /* ipv6IfIcmpInErrors, # of input error messages */ 194 u_quad_t ifs6_in_error; 195 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 196 u_quad_t ifs6_in_dstunreach; 197 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 198 u_quad_t ifs6_in_adminprohib; 199 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 200 u_quad_t ifs6_in_timeexceed; 201 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 202 u_quad_t ifs6_in_paramprob; 203 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 204 u_quad_t ifs6_in_pkttoobig; 205 /* ipv6IfIcmpInEchos, # of input echo requests */ 206 u_quad_t ifs6_in_echo; 207 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 208 u_quad_t ifs6_in_echoreply; 209 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 210 u_quad_t ifs6_in_routersolicit; 211 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 212 u_quad_t ifs6_in_routeradvert; 213 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 214 u_quad_t ifs6_in_neighborsolicit; 215 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 216 u_quad_t ifs6_in_neighboradvert; 217 /* ipv6IfIcmpInRedirects, # of input redirects */ 218 u_quad_t ifs6_in_redirect; 219 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 220 u_quad_t ifs6_in_mldquery; 221 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 222 u_quad_t ifs6_in_mldreport; 223 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 224 u_quad_t ifs6_in_mlddone; 225 226 /* 227 * Output statistics. We should solve unresolved routing problem... 228 */ 229 /* ipv6IfIcmpOutMsgs, total # of output messages */ 230 u_quad_t ifs6_out_msg; 231 /* ipv6IfIcmpOutErrors, # of output error messages */ 232 u_quad_t ifs6_out_error; 233 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 234 u_quad_t ifs6_out_dstunreach; 235 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 236 u_quad_t ifs6_out_adminprohib; 237 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 238 u_quad_t ifs6_out_timeexceed; 239 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 240 u_quad_t ifs6_out_paramprob; 241 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 242 u_quad_t ifs6_out_pkttoobig; 243 /* ipv6IfIcmpOutEchos, # of output echo requests */ 244 u_quad_t ifs6_out_echo; 245 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 246 u_quad_t ifs6_out_echoreply; 247 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 248 u_quad_t ifs6_out_routersolicit; 249 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 250 u_quad_t ifs6_out_routeradvert; 251 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 252 u_quad_t ifs6_out_neighborsolicit; 253 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 254 u_quad_t ifs6_out_neighboradvert; 255 /* ipv6IfIcmpOutRedirects, # of output redirects */ 256 u_quad_t ifs6_out_redirect; 257 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 258 u_quad_t ifs6_out_mldquery; 259 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 260 u_quad_t ifs6_out_mldreport; 261 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 262 u_quad_t ifs6_out_mlddone; 263}; 264 265/* 266 * If you make changes that change the size of in6_ifreq, 267 * make sure you fix compat/netinet6/in6_var.h 268 */ 269struct in6_ifreq { 270 char ifr_name[IFNAMSIZ]; 271 union { 272 struct sockaddr_in6 ifru_addr; 273 struct sockaddr_in6 ifru_dstaddr; 274 short ifru_flags; 275 int ifru_flags6; 276 int ifru_metric; 277 void * ifru_data; 278 struct in6_addrlifetime ifru_lifetime; 279 struct in6_ifstat ifru_stat; 280 struct icmp6_ifstat ifru_icmp6stat; 281 } ifr_ifru; 282}; 283 284struct in6_aliasreq { 285 char ifra_name[IFNAMSIZ]; 286 struct sockaddr_in6 ifra_addr; 287 struct sockaddr_in6 ifra_dstaddr; 288 struct sockaddr_in6 ifra_prefixmask; 289 int ifra_flags; 290 struct in6_addrlifetime ifra_lifetime; 291}; 292 293/* prefix type macro */ 294#define IN6_PREFIX_ND 1 295#define IN6_PREFIX_RR 2 296 297/* 298 * prefix related flags passed between kernel(NDP related part) and 299 * user land command(ifconfig) and daemon(rtadvd). 300 * Note: We originally intended to use prf_ra{} only within in6_prflags{}, but 301 * it was (probably unintentionally) used in nd6.h as well. Since C++ does 302 * not allow such a reference, prf_ra{} was then moved outside. In general, 303 * however, this structure should not be used directly. 304 */ 305struct prf_ra { 306 u_int32_t onlink : 1; 307 u_int32_t autonomous : 1; 308 u_int32_t router : 1; 309 u_int32_t reserved : 5; 310}; 311 312struct in6_prflags { 313 struct prf_ra prf_ra; 314 u_char prf_reserved1; 315 u_short prf_reserved2; 316 /* want to put this on 4byte offset */ 317 struct prf_rr { 318 u_int32_t decrvalid : 1; 319 u_int32_t decrprefd : 1; 320 u_int32_t reserved : 6; 321 } prf_rr; 322 u_char prf_reserved3; 323 u_short prf_reserved4; 324}; 325 326struct in6_prefixreq { 327 char ipr_name[IFNAMSIZ]; 328 u_char ipr_origin; 329 u_char ipr_plen; 330 u_int32_t ipr_vltime; 331 u_int32_t ipr_pltime; 332 struct in6_prflags ipr_flags; 333 struct sockaddr_in6 ipr_prefix; 334}; 335 336#define PR_ORIG_RA 0 337#define PR_ORIG_RR 1 338#define PR_ORIG_STATIC 2 339#define PR_ORIG_KERNEL 3 340 341#define ipr_raf_onlink ipr_flags.prf_ra.onlink 342#define ipr_raf_auto ipr_flags.prf_ra.autonomous 343 344#define ipr_statef_onlink ipr_flags.prf_state.onlink 345 346#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 347#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 348 349struct in6_rrenumreq { 350 char irr_name[IFNAMSIZ]; 351 u_char irr_origin; 352 u_char irr_m_len; /* match len for matchprefix */ 353 u_char irr_m_minlen; /* minlen for matching prefix */ 354 u_char irr_m_maxlen; /* maxlen for matching prefix */ 355 u_char irr_u_uselen; /* uselen for adding prefix */ 356 u_char irr_u_keeplen; /* keeplen from matching prefix */ 357 struct irr_raflagmask { 358 u_int32_t onlink : 1; 359 u_int32_t autonomous : 1; 360 u_int32_t reserved : 6; 361 } irr_raflagmask; 362 u_int32_t irr_vltime; 363 u_int32_t irr_pltime; 364 struct in6_prflags irr_flags; 365 struct sockaddr_in6 irr_matchprefix; 366 struct sockaddr_in6 irr_useprefix; 367}; 368 369#define irr_raf_mask_onlink irr_raflagmask.onlink 370#define irr_raf_mask_auto irr_raflagmask.autonomous 371#define irr_raf_mask_reserved irr_raflagmask.reserved 372 373#define irr_raf_onlink irr_flags.prf_ra.onlink 374#define irr_raf_auto irr_flags.prf_ra.autonomous 375 376#define irr_statef_onlink irr_flags.prf_state.onlink 377 378#define irr_rrf irr_flags.prf_rr 379#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 380#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 381 382/* 383 * Given a pointer to an in6_ifaddr (ifaddr), 384 * return a pointer to the addr as a sockaddr_in6 385 */ 386#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 387#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 388#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 389#define IA6_SIN6(ia) (&((ia)->ia_addr)) 390#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 391#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 392#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 393 394#ifdef _KERNEL 395#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 396 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 397 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 398 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 399 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 400#endif 401 402#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 403#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 404 405#ifdef _KERNEL 406/* 407 * SIOCSxxx ioctls should be unused (see comments in in6.c), but 408 * we do not shift numbers for binary compatibility. 409 */ 410#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 411#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 412#endif 413 414#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 415#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 416 417#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 418/* 26 was OSIOCAIFADDR_IN6 */ 419 420/* 70 was OSIOCSIFPHYADDR_IN6 */ 421#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 422#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 423 424#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 425 426#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 427#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_oprlist) 428#ifdef _KERNEL 429#define OSIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ondireq) 430#endif 431#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 432#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 433#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 434#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 435/* 81 was old SIOCGIFALIFETIME_IN6 */ 436#if 0 437/* withdrawn - do not reuse number 82 */ 438#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 439#endif 440#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 441#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 442 443#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 444#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 445 446#define SIOCSIFINFO_FLAGS _IOWR('i', 87, struct in6_ndireq) /* XXX */ 447 448#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 449#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 450#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 451#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 452#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 453 struct in6_rrenumreq) /* change */ 454#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 455 struct in6_rrenumreq) /* set global */ 456#define SIOCGIFALIFETIME_IN6 _IOWR('i', 106, struct in6_ifreq) 457#define SIOCAIFADDR_IN6 _IOW('i', 107, struct in6_aliasreq) 458#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq) 459#define SIOCSIFINFO_IN6 _IOWR('i', 109, struct in6_ndireq) 460#define SIOCSIFPHYADDR_IN6 _IOW('i', 110, struct in6_aliasreq) 461 462 463/* XXX: Someone decided to switch to 'u' here for unknown reasons! */ 464#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 465 struct sioc_sg_req6) /* get s,g pkt cnt */ 466#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 467 struct sioc_mif_req6) /* get pkt cnt per if */ 468#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy) 469#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy) 470 471#define IN6_IFF_ANYCAST 0x01 /* anycast address */ 472#define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 473#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 474#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 475#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 476#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address 477 * (used only at first SIOC* call) 478 */ 479#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */ 480#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */ 481 482/* do not input/output */ 483#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 484 485#ifdef _KERNEL 486#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b)) 487#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b)) 488#endif 489 490#ifdef _KERNEL 491 492#include <net/pktqueue.h> 493 494extern pktqueue_t *ip6_pktq; 495 496MALLOC_DECLARE(M_IP6OPT); 497 498extern struct pslist_head in6_ifaddr_list; 499 500#define IN6_ADDRLIST_ENTRY_INIT(__ia) \ 501 PSLIST_ENTRY_INIT((__ia), ia6_pslist_entry) 502#define IN6_ADDRLIST_ENTRY_DESTROY(__ia) \ 503 PSLIST_ENTRY_DESTROY((__ia), ia6_pslist_entry) 504#define IN6_ADDRLIST_READER_EMPTY() \ 505 (PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 506 ia6_pslist_entry) == NULL) 507#define IN6_ADDRLIST_READER_FIRST() \ 508 PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 509 ia6_pslist_entry) 510#define IN6_ADDRLIST_READER_NEXT(__ia) \ 511 PSLIST_READER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry) 512#define IN6_ADDRLIST_READER_FOREACH(__ia) \ 513 PSLIST_READER_FOREACH((__ia), &in6_ifaddr_list, \ 514 struct in6_ifaddr, ia6_pslist_entry) 515#define IN6_ADDRLIST_WRITER_INSERT_HEAD(__ia) \ 516 PSLIST_WRITER_INSERT_HEAD(&in6_ifaddr_list, (__ia), ia6_pslist_entry) 517#define IN6_ADDRLIST_WRITER_REMOVE(__ia) \ 518 PSLIST_WRITER_REMOVE((__ia), ia6_pslist_entry) 519#define IN6_ADDRLIST_WRITER_FOREACH(__ia) \ 520 PSLIST_WRITER_FOREACH((__ia), &in6_ifaddr_list, struct in6_ifaddr, \ 521 ia6_pslist_entry) 522#define IN6_ADDRLIST_WRITER_FIRST() \ 523 PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 524 ia6_pslist_entry) 525#define IN6_ADDRLIST_WRITER_NEXT(__ia) \ 526 PSLIST_WRITER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry) 527#define IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia, __new) \ 528 PSLIST_WRITER_INSERT_AFTER((__ia), (__new), ia6_pslist_entry) 529#define IN6_ADDRLIST_WRITER_EMPTY() \ 530 (PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \ 531 ia6_pslist_entry) == NULL) 532#define IN6_ADDRLIST_WRITER_INSERT_TAIL(__new) \ 533 do { \ 534 if (IN6_ADDRLIST_WRITER_EMPTY()) { \ 535 IN6_ADDRLIST_WRITER_INSERT_HEAD((__new)); \ 536 } else { \ 537 struct in6_ifaddr *__ia; \ 538 IN6_ADDRLIST_WRITER_FOREACH(__ia) { \ 539 if (IN6_ADDRLIST_WRITER_NEXT(__ia) == NULL) { \ 540 IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia,\ 541 (__new)); \ 542 break; \ 543 } \ 544 } \ 545 } \ 546 } while (0) 547 548#define in6_ifstat_inc(ifp, tag) \ 549do { \ 550 if (ifp) \ 551 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \ 552} while (/*CONSTCOND*/ 0) 553 554extern const struct in6_addr zeroin6_addr; 555extern const u_char inet6ctlerrmap[]; 556extern unsigned long in6_maxmtu; 557extern bool in6_present; 558extern callout_t in6_tmpaddrtimer_ch; 559 560/* 561 * Macro for finding the internet address structure (in6_ifaddr) corresponding 562 * to a given interface (ifnet structure). 563 */ 564static inline struct in6_ifaddr * 565ifp_to_ia6(struct ifnet *ifp) 566{ 567 struct ifaddr *ifa; 568 569 IFADDR_READER_FOREACH(ifa, ifp) { 570 if (ifa->ifa_addr->sa_family == AF_INET6) 571 break; 572 } 573 return (struct in6_ifaddr *)ifa; 574} 575 576#define IFP_TO_IA6(__ifp, __ia) \ 577do { \ 578 (__ia) = ifp_to_ia6((__ifp)); \ 579} while (/*CONSTCOND*/0) 580 581 582#endif /* _KERNEL */ 583 584/* 585 * Multi-cast membership entry. One for each group/ifp that a PCB 586 * belongs to. 587 */ 588struct in6_multi_mship { 589 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 590 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 591}; 592 593struct in6_multi { 594 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 595 struct in6_addr in6m_addr; /* IP6 multicast address */ 596 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 597 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 598 u_int in6m_refcount; /* # membership claims by sockets */ 599 u_int in6m_state; /* state of the membership */ 600 int in6m_timer; /* delay to send the 1st report */ 601 struct timeval in6m_timer_expire; /* when the timer expires */ 602 callout_t in6m_timer_ch; 603}; 604 605#define IN6M_TIMER_UNDEF -1 606 607 608#ifdef _KERNEL 609/* flags to in6_update_ifa */ 610#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */ 611 612/* 613 * Structure used by macros below to remember position when stepping through 614 * all of the in6_multi records. 615 */ 616struct in6_multistep { 617 struct in6_ifaddr *i_ia; 618 struct in6_multi *i_in6m; 619}; 620 621/* 622 * Macros for looking up the in6_multi record for a given IP6 multicast 623 * address on a given interface. If no matching record is found, "in6m" 624 * returns NULL. 625 */ 626 627static inline struct in6_multi * 628in6_lookup_multi(struct in6_addr *addr, struct ifnet *ifp) 629{ 630 struct in6_multi *in6m; 631 struct in6_ifaddr *ia; 632 633 if ((ia = ifp_to_ia6(ifp)) == NULL) 634 return NULL; 635 LIST_FOREACH(in6m, &ia->ia6_multiaddrs, in6m_entry) { 636 if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, addr)) 637 break; 638 } 639 return in6m; 640} 641 642#define IN6_LOOKUP_MULTI(__addr, __ifp, __in6m) \ 643/* struct in6_addr __addr; */ \ 644/* struct ifnet *__ifp; */ \ 645/* struct in6_multi *__in6m; */ \ 646do { \ 647 (__in6m) = in6_lookup_multi(&(__addr), (__ifp)); \ 648} while (/*CONSTCOND*/ 0) 649 650/* 651 * Macro to step through all of the in6_multi records, one at a time. 652 * The current position is remembered in "step", which the caller must 653 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 654 * and get the first record. Both macros return a NULL "in6m" when there 655 * are no remaining records. 656 */ 657static inline struct in6_multi * 658in6_next_multi(struct in6_multistep *step) 659{ 660 struct in6_multi *in6m; 661 662 if ((in6m = step->i_in6m) != NULL) { 663 step->i_in6m = LIST_NEXT(in6m, in6m_entry); 664 return in6m; 665 } 666 while (step->i_ia != NULL) { 667 in6m = LIST_FIRST(&step->i_ia->ia6_multiaddrs); 668 step->i_ia = IN6_ADDRLIST_READER_NEXT(step->i_ia); 669 if (in6m != NULL) { 670 step->i_in6m = LIST_NEXT(in6m, in6m_entry); 671 break; 672 } 673 } 674 return in6m; 675} 676 677static inline struct in6_multi * 678in6_first_multi(struct in6_multistep *step) 679{ 680 681 step->i_ia = IN6_ADDRLIST_READER_FIRST(); 682 step->i_in6m = NULL; 683 return in6_next_multi(step); 684} 685 686#define IN6_NEXT_MULTI(__step, __in6m) \ 687/* struct in6_multistep __step; */ \ 688/* struct in6_multi *__in6m; */ \ 689do { \ 690 (__in6m) = in6_next_multi(&(__step)); \ 691} while (/*CONSTCOND*/ 0) 692 693#define IN6_FIRST_MULTI(__step, __in6m) \ 694/* struct in6_multistep __step; */ \ 695/* struct in6_multi *__in6m */ \ 696do { \ 697 (__in6m) = in6_first_multi(&(__step)); \ 698} while (/*CONSTCOND*/ 0) 699 700 701#if 0 702/* 703 * Macros for looking up the in6_multi_mship record for a given IP6 multicast 704 * address on a given interface. If no matching record is found, "imm" 705 * returns NULL. 706 */ 707static inline struct in6_multi_mship * 708in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp, 709 struct ip6_moptions *imop) 710{ 711 struct in6_multi_mship *imm; 712 713 LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) { 714 if (imm->i6mm_maddr->in6m_ifp != ifp) 715 continue; 716 if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr, 717 addr)) 718 break; 719 } 720 return imm; 721} 722 723#define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \ 724/* struct in6_addr __addr; */ \ 725/* struct ifnet *__ifp; */ \ 726/* struct ip6_moptions *__imop */ \ 727/* struct in6_multi_mship *__imm; */ \ 728do { \ 729 (__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \ 730} while (/*CONSTCOND*/ 0) 731#endif 732 733void in6_init(void); 734 735struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, 736 int *, int); 737void in6_delmulti(struct in6_multi *); 738struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, 739 int *, int); 740int in6_leavegroup(struct in6_multi_mship *); 741int in6_mask2len(struct in6_addr *, u_char *); 742int in6_control(struct socket *, u_long, void *, struct ifnet *); 743int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, 744 struct in6_ifaddr *, int); 745void in6_purgeaddr(struct ifaddr *); 746void in6_purgeif(struct ifnet *); 747void in6_savemkludge(struct in6_ifaddr *); 748void in6_setmaxmtu (void); 749int in6_if2idlen (struct ifnet *); 750void *in6_domifattach(struct ifnet *); 751void in6_domifdetach(struct ifnet *, void *); 752void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *); 753void in6_ifremlocal(struct ifaddr *); 754void in6_ifaddlocal(struct ifaddr *); 755void in6_createmkludge(struct ifnet *); 756void in6_purgemkludge(struct ifnet *); 757struct in6_ifaddr *in6ifa_ifpforlinklocal(const struct ifnet *, int); 758struct in6_ifaddr *in6ifa_ifpwithaddr(const struct ifnet *, 759 const struct in6_addr *); 760struct in6_ifaddr *in6ifa_ifwithaddr(const struct in6_addr *, uint32_t); 761char *ip6_sprintf(const struct in6_addr *); 762int in6_matchlen(struct in6_addr *, struct in6_addr *); 763int in6_are_prefix_equal(struct in6_addr *, struct in6_addr *, int); 764void in6_prefixlen2mask(struct in6_addr *, int); 765void in6_purgeprefix(struct ifnet *); 766 767int ip6flow_fastforward(struct mbuf **); /* IPv6 fast forward routine */ 768 769int in6_src_ioctl(u_long, void *); 770int in6_is_addr_deprecated(struct sockaddr_in6 *); 771struct in6pcb; 772 773#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable) 774 775#endif /* _KERNEL */ 776 777#endif /* !_NETINET6_IN6_VAR_H_ */ 778