bsd/netinet6/in6_var.h

   1 /*
   2  * Copyright (c) 2008 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 /*      $FreeBSD: src/sys/netinet6/in6_var.h,v 1.3.2.2 2001/07/03 11:01:52 ume Exp $    */
  30 /*      $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $        */
  31
  32 /*
  33  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  34  * 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  * 3. Neither the name of the project 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 PROJECT 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 PROJECT 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
  61 /*
  62  * Copyright (c) 1985, 1986, 1993
  63  *      The Regents of the University of California.  All rights reserved.
  64  *
  65  * Redistribution and use in source and binary forms, with or without
  66  * modification, are permitted provided that the following conditions
  67  * are met:
  68  * 1. Redistributions of source code must retain the above copyright
  69  *    notice, this list of conditions and the following disclaimer.
  70  * 2. Redistributions in binary form must reproduce the above copyright
  71  *    notice, this list of conditions and the following disclaimer in the
  72  *    documentation and/or other materials provided with the distribution.
  73  * 3. All advertising materials mentioning features or use of this software
  74  *    must display the following acknowledgement:
  75  *      This product includes software developed by the University of
  76  *      California, Berkeley and its contributors.
  77  * 4. Neither the name of the University nor the names of its contributors
  78  *    may be used to endorse or promote products derived from this software
  79  *    without specific prior written permission.
  80  *
  81  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  82  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  83  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  84  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  85  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  86  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  87  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  88  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  89  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  90  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  91  * SUCH DAMAGE.
  92  *
  93  *      @(#)in_var.h    8.1 (Berkeley) 6/10/93
  94  */
  95
  96 #ifndef _NETINET6_IN6_VAR_H_
  97 #define _NETINET6_IN6_VAR_H_
  98 #include <sys/appleapiopts.h>
  99
 100 #ifdef __APPLE__
 101 #include <sys/kern_event.h>
 102 #endif
 103
 104 /*
 105  * pltime/vltime are just for future reference (required to implements 2
 106  * hour rule for hosts).  they should never be modified by nd6_timeout or
 107  * anywhere else.
 108  *      userland -> kernel: accept pltime/vltime
 109  *      kernel -> userland: throw up everything
 110  *      in kernel: modify preferred/expire only
 111  */
 112 struct in6_addrlifetime {
 113         time_t ia6t_expire;     /* valid lifetime expiration time */
 114         time_t ia6t_preferred;  /* preferred lifetime expiration time */
 115         u_int32_t ia6t_vltime;  /* valid lifetime */
 116         u_int32_t ia6t_pltime;  /* prefix lifetime */
 117 };
 118
 119 #if defined(KERNEL_PRIVATE)
 120 struct in6_addrlifetime_32 {
 121         u_int32_t ia6t_expire;
 122         u_int32_t ia6t_preferred;
 123         u_int32_t ia6t_vltime;
 124         u_int32_t ia6t_pltime;
 125 };
 126
 127 struct in6_addrlifetime_64 {
 128         time_t  ia6t_expire;
 129         time_t  ia6t_preferred  __attribute__((aligned(8)));
 130         u_int32_t ia6t_vltime   __attribute__((aligned(8)));
 131         u_int32_t ia6t_pltime;
 132 };
 133
 134 /*
 135  * Interface address, IPv6 version.  One of these structures
 136  * is allocated for each interface with an IPv6 address.
 137  * The ifaddr structure contains the protocol-independent part
 138  * of the structure and is assumed to be first.
 139  */
 140 struct  in6_ifaddr {
 141         struct  ifaddr ia_ifa;          /* protocol-independent info */
 142 #define ia_ifp          ia_ifa.ifa_ifp
 143 #define ia_flags        ia_ifa.ifa_flags
 144         struct  sockaddr_in6 ia_addr;   /* interface address */
 145         struct  sockaddr_in6 ia_net;    /* network number of interface */
 146         struct  sockaddr_in6 ia_dstaddr; /* space for destination addr */
 147         struct  sockaddr_in6 ia_prefixmask; /* prefix mask */
 148         u_int32_t ia_plen;              /* prefix length */
 149         struct  in6_ifaddr *ia_next;    /* next in6 list of IP6 addresses */
 150         int     ia6_flags;
 151
 152         struct in6_addrlifetime ia6_lifetime;
 153         struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */
 154
 155         struct nd_prefix *ia6_ndpr; /* back pointer to the ND prefix
 156                                      * (for autoconfigured addresses only)
 157                                      */
 158 };
 159 #endif /* KERNEL_PRIVATE */
 160
 161 /*
 162  * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
 163  */
 164 struct in6_ifstat {
 165         u_quad_t ifs6_in_receive;       /* # of total input datagram */
 166         u_quad_t ifs6_in_hdrerr;        /* # of datagrams with invalid hdr */
 167         u_quad_t ifs6_in_toobig;        /* # of datagrams exceeded MTU */
 168         u_quad_t ifs6_in_noroute;       /* # of datagrams with no route */
 169         u_quad_t ifs6_in_addrerr;       /* # of datagrams with invalid dst */
 170         u_quad_t ifs6_in_protounknown;  /* # of datagrams with unknown proto */
 171                                         /* NOTE: increment on final dst if */
 172         u_quad_t ifs6_in_truncated;     /* # of truncated datagrams */
 173         u_quad_t ifs6_in_discard;       /* # of discarded datagrams */
 174                                         /* NOTE: fragment timeout is not here */
 175         u_quad_t ifs6_in_deliver;       /* # of datagrams delivered to ULP */
 176                                         /* NOTE: increment on final dst if */
 177         u_quad_t ifs6_out_forward;      /* # of datagrams forwarded */
 178                                         /* NOTE: increment on outgoing if */
 179         u_quad_t ifs6_out_request;      /* # of outgoing datagrams from ULP */
 180                                         /* NOTE: does not include forwrads */
 181         u_quad_t ifs6_out_discard;      /* # of discarded datagrams */
 182         u_quad_t ifs6_out_fragok;       /* # of datagrams fragmented */
 183         u_quad_t ifs6_out_fragfail;     /* # of datagrams failed on fragment */
 184         u_quad_t ifs6_out_fragcreat;    /* # of fragment datagrams */
 185                                         /* NOTE: this is # after fragment */
 186         u_quad_t ifs6_reass_reqd;       /* # of incoming fragmented packets */
 187                                         /* NOTE: increment on final dst if */
 188         u_quad_t ifs6_reass_ok;         /* # of reassembled packets */
 189                                         /* NOTE: this is # after reass */
 190                                         /* NOTE: increment on final dst if */
 191         u_quad_t ifs6_reass_fail;       /* # of reass failures */
 192                                         /* NOTE: may not be packet count */
 193                                         /* NOTE: increment on final dst if */
 194         u_quad_t ifs6_in_mcast;         /* # of inbound multicast datagrams */
 195         u_quad_t ifs6_out_mcast;        /* # of outbound multicast datagrams */
 196 };
 197
 198 /*
 199  * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
 200  * XXX: I'm not sure if this file is the right place for this structure...
 201  */
 202 struct icmp6_ifstat {
 203         /*
 204          * Input statistics
 205          */
 206         /* ipv6IfIcmpInMsgs, total # of input messages */
 207         u_quad_t ifs6_in_msg;
 208         /* ipv6IfIcmpInErrors, # of input error messages */
 209         u_quad_t ifs6_in_error;
 210         /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
 211         u_quad_t ifs6_in_dstunreach;
 212         /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
 213         u_quad_t ifs6_in_adminprohib;
 214         /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
 215         u_quad_t ifs6_in_timeexceed;
 216         /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
 217         u_quad_t ifs6_in_paramprob;
 218         /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
 219         u_quad_t ifs6_in_pkttoobig;
 220         /* ipv6IfIcmpInEchos, # of input echo requests */
 221         u_quad_t ifs6_in_echo;
 222         /* ipv6IfIcmpInEchoReplies, # of input echo replies */
 223         u_quad_t ifs6_in_echoreply;
 224         /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
 225         u_quad_t ifs6_in_routersolicit;
 226         /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
 227         u_quad_t ifs6_in_routeradvert;
 228         /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
 229         u_quad_t ifs6_in_neighborsolicit;
 230         /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
 231         u_quad_t ifs6_in_neighboradvert;
 232         /* ipv6IfIcmpInRedirects, # of input redirects */
 233         u_quad_t ifs6_in_redirect;
 234         /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
 235         u_quad_t ifs6_in_mldquery;
 236         /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
 237         u_quad_t ifs6_in_mldreport;
 238         /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
 239         u_quad_t ifs6_in_mlddone;
 240
 241         /*
 242          * Output statistics. We should solve unresolved routing problem...
 243          */
 244         /* ipv6IfIcmpOutMsgs, total # of output messages */
 245         u_quad_t ifs6_out_msg;
 246         /* ipv6IfIcmpOutErrors, # of output error messages */
 247         u_quad_t ifs6_out_error;
 248         /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
 249         u_quad_t ifs6_out_dstunreach;
 250         /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
 251         u_quad_t ifs6_out_adminprohib;
 252         /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
 253         u_quad_t ifs6_out_timeexceed;
 254         /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
 255         u_quad_t ifs6_out_paramprob;
 256         /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
 257         u_quad_t ifs6_out_pkttoobig;
 258         /* ipv6IfIcmpOutEchos, # of output echo requests */
 259         u_quad_t ifs6_out_echo;
 260         /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
 261         u_quad_t ifs6_out_echoreply;
 262         /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
 263         u_quad_t ifs6_out_routersolicit;
 264         /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
 265         u_quad_t ifs6_out_routeradvert;
 266         /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
 267         u_quad_t ifs6_out_neighborsolicit;
 268         /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
 269         u_quad_t ifs6_out_neighboradvert;
 270         /* ipv6IfIcmpOutRedirects, # of output redirects */
 271         u_quad_t ifs6_out_redirect;
 272         /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
 273         u_quad_t ifs6_out_mldquery;
 274         /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
 275         u_quad_t ifs6_out_mldreport;
 276         /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
 277         u_quad_t ifs6_out_mlddone;
 278 };
 279
 280 struct  in6_ifreq {
 281         char    ifr_name[IFNAMSIZ];
 282         union {
 283                 struct  sockaddr_in6 ifru_addr;
 284                 struct  sockaddr_in6 ifru_dstaddr;
 285                 short   ifru_flags;
 286                 int     ifru_flags6;
 287                 int     ifru_metric;
 288                 caddr_t ifru_data;
 289                 struct in6_addrlifetime ifru_lifetime;
 290                 struct in6_ifstat ifru_stat;
 291                 struct icmp6_ifstat ifru_icmp6stat;
 292                 u_int32_t ifru_scope_id[16];
 293         } ifr_ifru;
 294 };
 295
 296 struct  in6_aliasreq {
 297         char    ifra_name[IFNAMSIZ];
 298         struct  sockaddr_in6 ifra_addr;
 299         struct  sockaddr_in6 ifra_dstaddr;
 300         struct  sockaddr_in6 ifra_prefixmask;
 301         int     ifra_flags;
 302         struct in6_addrlifetime ifra_lifetime;
 303 };
 304
 305 #if defined(KERNEL_PRIVATE)
 306 struct  in6_aliasreq_32 {
 307         char    ifra_name[IFNAMSIZ];
 308         struct  sockaddr_in6 ifra_addr;
 309         struct  sockaddr_in6 ifra_dstaddr;
 310         struct  sockaddr_in6 ifra_prefixmask;
 311         int     ifra_flags;
 312         struct in6_addrlifetime_32 ifra_lifetime;
 313 };
 314
 315 struct  in6_aliasreq_64 {
 316         char    ifra_name[IFNAMSIZ];
 317         struct  sockaddr_in6 ifra_addr;
 318         struct  sockaddr_in6 ifra_dstaddr;
 319         struct  sockaddr_in6 ifra_prefixmask;
 320         int     ifra_flags;
 321         struct in6_addrlifetime_64 ifra_lifetime;
 322 };
 323 #endif /* KERNEL_PRIVATE */
 324
 325 /* prefix type macro */
 326 #define IN6_PREFIX_ND   1
 327 #define IN6_PREFIX_RR   2
 328
 329 /*
 330  * prefix related flags passed between kernel(NDP related part) and
 331  * user land command(ifconfig) and daemon(rtadvd).
 332  */
 333 struct in6_prflags {
 334         struct prf_ra {
 335                 u_char onlink : 1;
 336                 u_char autonomous : 1;
 337                 u_char reserved : 6;
 338         } prf_ra;
 339         u_char prf_reserved1;
 340         u_short prf_reserved2;
 341         /* want to put this on 4byte offset */
 342         struct prf_rr {
 343                 u_char decrvalid : 1;
 344                 u_char decrprefd : 1;
 345                 u_char reserved : 6;
 346         } prf_rr;
 347         u_char prf_reserved3;
 348         u_short prf_reserved4;
 349 };
 350
 351 struct  in6_prefixreq {
 352         char    ipr_name[IFNAMSIZ];
 353         u_char  ipr_origin;
 354         u_char  ipr_plen;
 355         u_int32_t ipr_vltime;
 356         u_int32_t ipr_pltime;
 357         struct in6_prflags ipr_flags;
 358         struct  sockaddr_in6 ipr_prefix;
 359 };
 360
 361 #define PR_ORIG_RA      0
 362 #define PR_ORIG_RR      1
 363 #define PR_ORIG_STATIC  2
 364 #define PR_ORIG_KERNEL  3
 365
 366 #define ipr_raf_onlink          ipr_flags.prf_ra.onlink
 367 #define ipr_raf_auto            ipr_flags.prf_ra.autonomous
 368
 369 #define ipr_statef_onlink       ipr_flags.prf_state.onlink
 370
 371 #define ipr_rrf_decrvalid       ipr_flags.prf_rr.decrvalid
 372 #define ipr_rrf_decrprefd       ipr_flags.prf_rr.decrprefd
 373
 374 struct  in6_rrenumreq {
 375         char    irr_name[IFNAMSIZ];
 376         u_char  irr_origin;
 377         u_char  irr_m_len;      /* match len for matchprefix */
 378         u_char  irr_m_minlen;   /* minlen for matching prefix */
 379         u_char  irr_m_maxlen;   /* maxlen for matching prefix */
 380         u_char  irr_u_uselen;   /* uselen for adding prefix */
 381         u_char  irr_u_keeplen;  /* keeplen from matching prefix */
 382         struct irr_raflagmask {
 383                 u_char onlink : 1;
 384                 u_char autonomous : 1;
 385                 u_char reserved : 6;
 386         } irr_raflagmask;
 387         u_int32_t irr_vltime;
 388         u_int32_t irr_pltime;
 389         struct in6_prflags irr_flags;
 390         struct  sockaddr_in6 irr_matchprefix;
 391         struct  sockaddr_in6 irr_useprefix;
 392 };
 393
 394 #define irr_raf_mask_onlink     irr_raflagmask.onlink
 395 #define irr_raf_mask_auto       irr_raflagmask.autonomous
 396 #define irr_raf_mask_reserved   irr_raflagmask.reserved
 397
 398 #define irr_raf_onlink          irr_flags.prf_ra.onlink
 399 #define irr_raf_auto            irr_flags.prf_ra.autonomous
 400
 401 #define irr_statef_onlink       irr_flags.prf_state.onlink
 402
 403 #define irr_rrf                 irr_flags.prf_rr
 404 #define irr_rrf_decrvalid       irr_flags.prf_rr.decrvalid
 405 #define irr_rrf_decrprefd       irr_flags.prf_rr.decrprefd
 406
 407 #ifdef KERNEL_PRIVATE
 408 /*
 409  * Given a pointer to an in6_ifaddr (ifaddr),
 410  * return a pointer to the addr as a sockaddr_in6
 411  */
 412 #define IA6_IN6(ia)     (&((ia)->ia_addr.sin6_addr))
 413 #define IA6_DSTIN6(ia)  (&((ia)->ia_dstaddr.sin6_addr))
 414 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
 415 #define IA6_SIN6(ia)    (&((ia)->ia_addr))
 416 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
 417 #define IFA_IN6(x)      (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
 418 #define IFA_DSTIN6(x)   (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
 419
 420 #define IFPR_IN6(x)     (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
 421 #endif /* KERNEL_PRIVATE */
 422
 423 /*
 424  * Event data, internet6 style.
 425  */
 426
 427 struct kev_in6_addrlifetime {
 428         u_int32_t ia6t_expire;
 429         u_int32_t ia6t_preferred;
 430         u_int32_t ia6t_vltime;
 431         u_int32_t ia6t_pltime;
 432 };
 433
 434 struct kev_in6_data {
 435         struct net_event_data   link_data;
 436         struct  sockaddr_in6 ia_addr;   /* interface address */
 437         struct  sockaddr_in6 ia_net;    /* network number of interface */
 438         struct  sockaddr_in6 ia_dstaddr; /* space for destination addr */
 439         struct  sockaddr_in6 ia_prefixmask; /* prefix mask */
 440         u_int32_t ia_plen;              /* prefix length */
 441         u_int32_t ia6_flags;            /* address flags from in6_ifaddr */
 442         struct kev_in6_addrlifetime ia_lifetime; /* address life info */
 443 };
 444
 445 /*
 446  * Define inet6 event subclass and specific inet6 events.
 447  */
 448
 449 #define KEV_INET6_SUBCLASS 6    /* inet6 subclass identifier */
 450
 451 #define KEV_INET6_NEW_USER_ADDR         1       /* Userland configured IPv6 address */
 452 #define KEV_INET6_CHANGED_ADDR          2       /* Address changed event (future) */
 453 #define KEV_INET6_ADDR_DELETED          3       /* IPv6 add. in ia_addr field was deleted */
 454 #define KEV_INET6_NEW_LL_ADDR           4       /* Autoconfigured linklocal address has appeared */
 455 #define KEV_INET6_NEW_RTADV_ADDR        5       /* Autoconf router advertised address has appeared */
 456 #define KEV_INET6_DEFROUTER             6       /* Default router dectected by kernel */
 457
 458 #ifdef KERNEL_PRIVATE
 459 /* Utility function used inside netinet6 kernel code for generating events */
 460 void in6_post_msg(struct ifnet *, u_int32_t, struct in6_ifaddr *);
 461 #endif /* KERNEL_PRIVATE */
 462
 463 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m)      (       \
 464         (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
 465         (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
 466         (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
 467         (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
 468
 469 #define SIOCSIFADDR_IN6          _IOW('i', 12, struct in6_ifreq)
 470 #define SIOCGIFADDR_IN6         _IOWR('i', 33, struct in6_ifreq)
 471
 472 /*
 473  * SIOCSxxx ioctls should be unused (see comments in in6.c), but
 474  * we do not shift numbers for binary compatibility.
 475  */
 476 #define SIOCSIFDSTADDR_IN6       _IOW('i', 14, struct in6_ifreq)
 477 #define SIOCSIFNETMASK_IN6       _IOW('i', 22, struct in6_ifreq)
 478
 479 #define SIOCGIFDSTADDR_IN6      _IOWR('i', 34, struct in6_ifreq)
 480 #define SIOCGIFNETMASK_IN6      _IOWR('i', 37, struct in6_ifreq)
 481
 482 #define SIOCDIFADDR_IN6          _IOW('i', 25, struct in6_ifreq)
 483 #define SIOCAIFADDR_IN6          _IOW('i', 26, struct in6_aliasreq)
 484 #ifdef KERNEL_PRIVATE
 485 #define SIOCAIFADDR_IN6_32       _IOW('i', 26, struct in6_aliasreq_32)
 486 #define SIOCAIFADDR_IN6_64       _IOW('i', 26, struct in6_aliasreq_64)
 487 #endif /* KERNEL_PRIVATE */
 488
 489 #define SIOCSIFPHYADDR_IN6      _IOW('i', 62, struct in6_aliasreq)
 490 #ifdef KERNEL_PRIVATE
 491 #define SIOCSIFPHYADDR_IN6_32   _IOW('i', 62, struct in6_aliasreq_32)
 492 #define SIOCSIFPHYADDR_IN6_64   _IOW('i', 62, struct in6_aliasreq_64)
 493 #endif /* KERNEL_PRIVATE */
 494 #define SIOCGIFPSRCADDR_IN6     _IOWR('i', 63, struct in6_ifreq)
 495 #define SIOCGIFPDSTADDR_IN6     _IOWR('i', 64, struct in6_ifreq)
 496 #define SIOCGIFAFLAG_IN6        _IOWR('i', 73, struct in6_ifreq)
 497 #define SIOCGDRLST_IN6          _IOWR('i', 74, struct in6_drlist)
 498 #ifdef KERNEL_PRIVATE
 499 #define SIOCGDRLST_IN6_32       _IOWR('i', 74, struct in6_drlist_32)
 500 #define SIOCGDRLST_IN6_64       _IOWR('i', 74, struct in6_drlist_64)
 501 #endif /* KERNEL_PRIVATE */
 502 #define SIOCGPRLST_IN6          _IOWR('i', 75, struct in6_prlist)
 503 #ifdef KERNEL_PRIVATE
 504 #define SIOCGPRLST_IN6_32       _IOWR('i', 75, struct in6_prlist_32)
 505 #define SIOCGPRLST_IN6_64       _IOWR('i', 75, struct in6_prlist_64)
 506 #endif /* KERNEL_PRIVATE */
 507 #define OSIOCGIFINFO_IN6        _IOWR('i', 108, struct in6_ondireq)
 508 #define SIOCGIFINFO_IN6         _IOWR('i', 76, struct in6_ondireq)
 509 #define SIOCSNDFLUSH_IN6        _IOWR('i', 77, struct in6_ifreq)
 510 #define SIOCGNBRINFO_IN6        _IOWR('i', 78, struct in6_nbrinfo)
 511 #ifdef KERNEL_PRIVATE
 512 #define SIOCGNBRINFO_IN6_32     _IOWR('i', 78, struct in6_nbrinfo_32)
 513 #define SIOCGNBRINFO_IN6_64     _IOWR('i', 78, struct in6_nbrinfo_64)
 514 #endif /* KERNEL_PRIVATE */
 515 #define SIOCSPFXFLUSH_IN6       _IOWR('i', 79, struct in6_ifreq)
 516 #define SIOCSRTRFLUSH_IN6       _IOWR('i', 80, struct in6_ifreq)
 517
 518 #define SIOCGIFALIFETIME_IN6    _IOWR('i', 81, struct in6_ifreq)
 519 #define SIOCSIFALIFETIME_IN6    _IOWR('i', 82, struct in6_ifreq)
 520 #define SIOCGIFSTAT_IN6         _IOWR('i', 83, struct in6_ifreq)
 521 #define SIOCGIFSTAT_ICMP6       _IOWR('i', 84, struct in6_ifreq)
 522
 523 #define SIOCSDEFIFACE_IN6       _IOWR('i', 85, struct in6_ndifreq)
 524 #define SIOCGDEFIFACE_IN6       _IOWR('i', 86, struct in6_ndifreq)
 525 #ifdef KERNEL_PRIVATE
 526 #define SIOCSDEFIFACE_IN6_32    _IOWR('i', 85, struct in6_ndifreq_32)
 527 #define SIOCSDEFIFACE_IN6_64    _IOWR('i', 85, struct in6_ndifreq_64)
 528 #define SIOCGDEFIFACE_IN6_32    _IOWR('i', 86, struct in6_ndifreq_32)
 529 #define SIOCGDEFIFACE_IN6_64    _IOWR('i', 86, struct in6_ndifreq_64)
 530 #endif /* KERNEL_PRIVATE */
 531
 532 #define SIOCSIFINFO_FLAGS       _IOWR('i', 87, struct in6_ndireq) /* XXX */
 533
 534 #define SIOCSSCOPE6             _IOW('i', 88, struct in6_ifreq)
 535 #define SIOCGSCOPE6             _IOWR('i', 89, struct in6_ifreq)
 536 #define SIOCGSCOPE6DEF          _IOWR('i', 90, struct in6_ifreq)
 537
 538 #define SIOCSIFPREFIX_IN6       _IOW('i', 100, struct in6_prefixreq) /* set */
 539 #define SIOCGIFPREFIX_IN6       _IOWR('i', 101, struct in6_prefixreq) /* get */
 540 #define SIOCDIFPREFIX_IN6       _IOW('i', 102, struct in6_prefixreq) /* del */
 541 #define SIOCAIFPREFIX_IN6       _IOW('i', 103, struct in6_rrenumreq) /* add */
 542 #define SIOCCIFPREFIX_IN6       _IOW('i', 104, \
 543                                      struct in6_rrenumreq) /* change */
 544 #define SIOCSGIFPREFIX_IN6      _IOW('i', 105, \
 545                                      struct in6_rrenumreq) /* set global */
 546
 547 #define SIOCGETSGCNT_IN6        _IOWR('u', 28, \
 548                                       struct sioc_sg_req6) /* get s,g pkt cnt */
 549 #define SIOCGETMIFCNT_IN6       _IOWR('u', 107, \
 550                                       struct sioc_mif_req6) /* get pkt cnt per if */
 551 #ifdef KERNEL_PRIVATE
 552 #define SIOCGETMIFCNT_IN6_32    _IOWR('u', 107, struct sioc_mif_req6_32)
 553 #define SIOCGETMIFCNT_IN6_64    _IOWR('u', 107, struct sioc_mif_req6_64)
 554 #endif /* KERNEL_PRIVATE */
 555
 556 #ifdef PRIVATE
 557 /*
 558  * temporary control calls to attach/detach IP to/from an ethernet interface
 559  */
 560 #define SIOCPROTOATTACH_IN6 _IOWR('i', 110, struct in6_aliasreq)    /* attach proto to interface */
 561 #ifdef KERNEL_PRIVATE
 562 #define SIOCPROTOATTACH_IN6_32  _IOWR('i', 110, struct in6_aliasreq_32)
 563 #define SIOCPROTOATTACH_IN6_64  _IOWR('i', 110, struct in6_aliasreq_64)
 564 #endif /* KERNEL_PRIVATE */
 565 #define SIOCPROTODETACH_IN6 _IOWR('i', 111, struct in6_ifreq)    /* detach proto from interface */
 566
 567 #define SIOCLL_START _IOWR('i', 130, struct in6_aliasreq)    /* start aquiring linklocal on interface */
 568 #ifdef KERNEL_PRIVATE
 569 #define SIOCLL_START_32         _IOWR('i', 130, struct in6_aliasreq_32)
 570 #define SIOCLL_START_64         _IOWR('i', 130, struct in6_aliasreq_64)
 571 #endif /* KERNEL_PRIVATE */
 572 #define SIOCLL_STOP _IOWR('i', 131, struct in6_ifreq)    /* deconfigure linklocal from interface */
 573 #define SIOCAUTOCONF_START _IOWR('i', 132, struct in6_ifreq)    /* accept rtadvd on this interface */
 574 #define SIOCAUTOCONF_STOP _IOWR('i', 133, struct in6_ifreq)    /* stop accepting rtadv for this interface */
 575 #endif /* PRIVATE */
 576
 577 #define IN6_IFF_ANYCAST         0x01    /* anycast address */
 578 #define IN6_IFF_TENTATIVE       0x02    /* tentative address */
 579 #define IN6_IFF_DUPLICATED      0x04    /* DAD detected duplicate */
 580 #define IN6_IFF_DETACHED        0x08    /* may be detached from the link */
 581 #define IN6_IFF_DEPRECATED      0x10    /* deprecated address */
 582 #define IN6_IFF_NODAD           0x20    /* don't perform DAD on this address
 583                                          * (used only at first SIOC* call)
 584                                          */
 585 #define IN6_IFF_AUTOCONF        0x40    /* autoconfigurable address. */
 586 #define IN6_IFF_TEMPORARY       0x80    /* temporary (anonymous) address. */
 587 #define IN6_IFF_NOPFX           0x8000  /* skip kernel prefix management.
 588                                          * XXX: this should be temporary.
 589                                          */
 590
 591 /* do not input/output */
 592 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
 593
 594 #ifdef KERNEL
 595 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
 596 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
 597 #endif /* KERNEL */
 598
 599 #ifdef KERNEL_PRIVATE
 600 extern struct in6_ifaddr *in6_ifaddrs;
 601
 602 extern struct in6_ifstat **in6_ifstat;
 603 extern size_t in6_ifstatmax;
 604 extern struct icmp6stat icmp6stat;
 605 extern struct icmp6_ifstat **icmp6_ifstat;
 606 extern size_t icmp6_ifstatmax;
 607 #define in6_ifstat_inc(ifp, tag) \
 608 do {                                                    \
 609         int _z_index = ifp ? ifp->if_index : 0;         \
 610         if ((_z_index) && _z_index <= if_index          \
 611          && _z_index < (signed)in6_ifstatmax            \
 612          && in6_ifstat && in6_ifstat[_z_index]) {       \
 613                 in6_ifstat[_z_index]->tag++;            \
 614         }                                               \
 615 } while (0)
 616
 617 extern struct ifqueue ip6intrq;         /* IP6 packet input queue */
 618 extern struct in6_addr zeroin6_addr;
 619 extern u_char inet6ctlerrmap[];
 620 extern u_int32_t in6_maxmtu;
 621 #ifdef MALLOC_DECLARE
 622 MALLOC_DECLARE(M_IPMADDR);
 623 #endif /* MALLOC_DECLARE */
 624
 625 /*
 626  * Macro for finding the internet address structure (in6_ifaddr) corresponding
 627  * to a given interface (ifnet structure).
 628  */
 629
 630 #define IFP_TO_IA6(ifp, ia)                             \
 631 /* struct ifnet *ifp; */                                \
 632 /* struct in6_ifaddr *ia; */                            \
 633 do {                                                                    \
 634         struct ifaddr *ifa;                                             \
 635         for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) {   \
 636                 if (!ifa->ifa_addr)                                     \
 637                         continue;                                       \
 638                 if (ifa->ifa_addr->sa_family == AF_INET6)               \
 639                         break;                                          \
 640         }                                                               \
 641         (ia) = (struct in6_ifaddr *)ifa;                                \
 642 } while (0)
 643
 644 /*
 645  * Multi-cast membership entry.  One for each group/ifp that a PCB
 646  * belongs to.
 647  */
 648 struct in6_multi_mship {
 649         struct  in6_multi *i6mm_maddr;  /* Multicast address pointer */
 650         LIST_ENTRY(in6_multi_mship) i6mm_chain;  /* multicast options chain */
 651 };
 652
 653 struct  in6_multi {
 654         LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
 655         struct  in6_addr in6m_addr;     /* IP6 multicast address */
 656         struct  ifnet *in6m_ifp;        /* back pointer to ifnet */
 657         struct  ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
 658         u_int   in6m_refcount;          /* # membership claims by sockets */
 659         u_int   in6m_state;             /* state of the membership */
 660         u_int   in6m_timer;             /* MLD6 listener report timer */
 661 };
 662
 663 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
 664
 665 /*
 666  * Structure used by macros below to remember position when stepping through
 667  * all of the in6_multi records.
 668  */
 669 struct  in6_multistep {
 670         struct  in6_ifaddr *i_ia;
 671         struct  in6_multi *i_in6m;
 672 };
 673
 674 /*
 675  * Macros for looking up the in6_multi record for a given IP6 multicast
 676  * address on a given interface. If no matching record is found, "in6m"
 677  * returns NLL.
 678  */
 679
 680 #define IN6_LOOKUP_MULTI(addr, ifp, in6m)                       \
 681 /* struct in6_addr addr; */                                     \
 682 /* struct ifnet *ifp; */                                        \
 683 /* struct in6_multi *in6m; */                                   \
 684 do { \
 685         struct ifmultiaddr *_ifma; \
 686         for (_ifma = (ifp)->if_multiaddrs.lh_first; _ifma; \
 687              _ifma = _ifma->ifma_link.le_next) { \
 688                 if (_ifma->ifma_addr->sa_family == AF_INET6 \
 689                     && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)_ifma->ifma_addr)->sin6_addr, \
 690                                           &(addr))) \
 691                         break; \
 692         } \
 693         (in6m) = (struct in6_multi *)(_ifma ? _ifma->ifma_protospec : 0); \
 694 } while(0)
 695
 696 /*
 697  * Macro to step through all of the in6_multi records, one at a time.
 698  * The current position is remembered in "step", which the caller must
 699  * provide.  IN6_FIRST_MULTI(), below, must be called to initialize "step"
 700  * and get the first record.  Both macros return a NULL "in6m" when there
 701  * are no remaining records.
 702  */
 703 #define IN6_NEXT_MULTI(step, in6m)                                      \
 704 /* struct in6_multistep step; */                                        \
 705 /* struct in6_multi *in6m; */                                           \
 706 do { \
 707         if (((in6m) = (step).i_in6m) != NULL) \
 708                 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
 709 } while(0)
 710
 711 #define IN6_FIRST_MULTI(step, in6m)             \
 712 /* struct in6_multistep step; */                \
 713 /* struct in6_multi *in6m */                    \
 714 do { \
 715         (step).i_in6m = in6_multihead.lh_first; \
 716                 IN6_NEXT_MULTI((step), (in6m)); \
 717 } while(0)
 718
 719 extern struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *,
 720     int *, int);
 721 extern void in6_delmulti(struct in6_multi *, int);
 722 extern int in6_ifindex2scopeid(int);
 723 extern int in6_mask2len(struct in6_addr *, u_char *);
 724 extern void in6_len2mask(struct in6_addr *, int);
 725 extern int in6_control(struct socket *, u_long, caddr_t, struct ifnet *,
 726     struct proc *);
 727 extern int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
 728     struct in6_ifaddr *, int);
 729 extern void in6_purgeaddr(struct ifaddr *, int);
 730 extern int in6if_do_dad(struct ifnet *);
 731 extern void in6_purgeif(struct ifnet *);
 732 extern void in6_savemkludge(struct in6_ifaddr *);
 733 extern void in6_setmaxmtu(void);
 734 extern void in6_restoremkludge(struct in6_ifaddr *, struct ifnet *);
 735 extern void in6_purgemkludge(struct ifnet *);
 736 extern struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int);
 737 extern struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, struct in6_addr *);
 738 extern char *ip6_sprintf(const struct in6_addr *);
 739 extern int in6_addr2scopeid(struct ifnet *, struct in6_addr *);
 740 extern int in6_matchlen(struct in6_addr *, struct in6_addr *);
 741 extern int in6_are_prefix_equal(struct in6_addr *p1, struct in6_addr *p2,
 742     int len);
 743 extern void in6_prefixlen2mask(struct in6_addr *maskp, int len);
 744 extern int in6_prefix_add_ifid(int iilen, struct in6_ifaddr *ia);
 745 extern void in6_prefix_remove_ifid(int iilen, struct in6_ifaddr *ia);
 746 extern void in6_purgeprefix(struct ifnet *);
 747
 748 extern int in6_is_addr_deprecated(struct sockaddr_in6 *);
 749
 750 struct inpcb;
 751
 752 extern int in6_embedscope(struct in6_addr *, const struct sockaddr_in6 *,
 753     struct inpcb *, struct ifnet **);
 754 extern int in6_recoverscope(struct sockaddr_in6 *, const struct in6_addr *,
 755     struct ifnet *);
 756 extern void in6_clearscope(struct in6_addr *);
 757 extern void in6_aliasreq_64_to_32(struct in6_aliasreq_64 *,
 758     struct in6_aliasreq_32 *);
 759 extern void in6_aliasreq_32_to_64(struct in6_aliasreq_32 *,
 760     struct in6_aliasreq_64 *);
 761 extern void in6_ifaddr_init(void);
 762 #endif /* KERNEL_PRIVATE */
 763 #endif /* _NETINET6_IN6_VAR_H_ */