bsd/netinet6/in6_var.h

   1 /*      $FreeBSD: src/sys/netinet6/in6_var.h,v 1.3.2.2 2001/07/03 11:01:52 ume Exp $    */
   2 /*      $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 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. All advertising materials mentioning features or use of this software
  46  *    must display the following acknowledgement:
  47  *      This product includes software developed by the University of
  48  *      California, Berkeley and its contributors.
  49  * 4. Neither the name of the University nor the names of its contributors
  50  *    may be used to endorse or promote products derived from this software
  51  *    without specific prior written permission.
  52  *
  53  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  54  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  55  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  56  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  57  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  58  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  59  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  60  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  61  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  62  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  63  * SUCH DAMAGE.
  64  *
  65  *      @(#)in_var.h    8.1 (Berkeley) 6/10/93
  66  */
  67
  68 #ifndef _NETINET6_IN6_VAR_H_
  69 #define _NETINET6_IN6_VAR_H_
  70 #include <sys/appleapiopts.h>
  71
  72 #ifdef __APPLE__
  73 #include <sys/kern_event.h>
  74 #endif
  75
  76 /*
  77  * Interface address, Internet version.  One of these structures
  78  * is allocated for each interface with an Internet address.
  79  * The ifaddr structure contains the protocol-independent part
  80  * of the structure and is assumed to be first.
  81  */
  82
  83 /*
  84  * pltime/vltime are just for future reference (required to implements 2
  85  * hour rule for hosts).  they should never be modified by nd6_timeout or
  86  * anywhere else.
  87  *      userland -> kernel: accept pltime/vltime
  88  *      kernel -> userland: throuw up everything
  89  *      in kernel: modify preferred/expire only
  90  */
  91 struct in6_addrlifetime {
  92         time_t ia6t_expire;     /* valid lifetime expiration time */
  93         time_t ia6t_preferred;  /* preferred lifetime expiration time */
  94         u_int32_t ia6t_vltime;  /* valid lifetime */
  95         u_int32_t ia6t_pltime;  /* prefix lifetime */
  96 };
  97
  98 #ifdef __APPLE_API_PRIVATE
  99 struct  in6_ifaddr {
 100         struct  ifaddr ia_ifa;          /* protocol-independent info */
 101 #define ia_ifp          ia_ifa.ifa_ifp
 102 #define ia_flags        ia_ifa.ifa_flags
 103         struct  sockaddr_in6 ia_addr;   /* interface address */
 104         struct  sockaddr_in6 ia_net;    /* network number of interface */
 105         struct  sockaddr_in6 ia_dstaddr; /* space for destination addr */
 106         struct  sockaddr_in6 ia_prefixmask; /* prefix mask */
 107         u_int32_t ia_plen;              /* prefix length */
 108         struct  in6_ifaddr *ia_next;    /* next in6 list of IP6 addresses */
 109         int     ia6_flags;
 110
 111         struct in6_addrlifetime ia6_lifetime;
 112         struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */
 113
 114         struct nd_prefix *ia6_ndpr; /* back pointer to the ND prefix
 115                                      * (for autoconfigured addresses only)
 116                                      */
 117 };
 118 #endif /* __APPLE_API_PRIVATE */
 119
 120 /*
 121  * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
 122  */
 123 #ifdef __APPLE_API_UNSTABLE
 124 struct in6_ifstat {
 125         u_quad_t ifs6_in_receive;       /* # of total input datagram */
 126         u_quad_t ifs6_in_hdrerr;        /* # of datagrams with invalid hdr */
 127         u_quad_t ifs6_in_toobig;        /* # of datagrams exceeded MTU */
 128         u_quad_t ifs6_in_noroute;       /* # of datagrams with no route */
 129         u_quad_t ifs6_in_addrerr;       /* # of datagrams with invalid dst */
 130         u_quad_t ifs6_in_protounknown;  /* # of datagrams with unknown proto */
 131                                         /* NOTE: increment on final dst if */
 132         u_quad_t ifs6_in_truncated;     /* # of truncated datagrams */
 133         u_quad_t ifs6_in_discard;       /* # of discarded datagrams */
 134                                         /* NOTE: fragment timeout is not here */
 135         u_quad_t ifs6_in_deliver;       /* # of datagrams delivered to ULP */
 136                                         /* NOTE: increment on final dst if */
 137         u_quad_t ifs6_out_forward;      /* # of datagrams forwarded */
 138                                         /* NOTE: increment on outgoing if */
 139         u_quad_t ifs6_out_request;      /* # of outgoing datagrams from ULP */
 140                                         /* NOTE: does not include forwrads */
 141         u_quad_t ifs6_out_discard;      /* # of discarded datagrams */
 142         u_quad_t ifs6_out_fragok;       /* # of datagrams fragmented */
 143         u_quad_t ifs6_out_fragfail;     /* # of datagrams failed on fragment */
 144         u_quad_t ifs6_out_fragcreat;    /* # of fragment datagrams */
 145                                         /* NOTE: this is # after fragment */
 146         u_quad_t ifs6_reass_reqd;       /* # of incoming fragmented packets */
 147                                         /* NOTE: increment on final dst if */
 148         u_quad_t ifs6_reass_ok;         /* # of reassembled packets */
 149                                         /* NOTE: this is # after reass */
 150                                         /* NOTE: increment on final dst if */
 151         u_quad_t ifs6_reass_fail;       /* # of reass failures */
 152                                         /* NOTE: may not be packet count */
 153                                         /* NOTE: increment on final dst if */
 154         u_quad_t ifs6_in_mcast;         /* # of inbound multicast datagrams */
 155         u_quad_t ifs6_out_mcast;        /* # of outbound multicast datagrams */
 156 };
 157
 158 /*
 159  * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
 160  * XXX: I'm not sure if this file is the right place for this structure...
 161  */
 162 struct icmp6_ifstat {
 163         /*
 164          * Input statistics
 165          */
 166         /* ipv6IfIcmpInMsgs, total # of input messages */
 167         u_quad_t ifs6_in_msg;
 168         /* ipv6IfIcmpInErrors, # of input error messages */
 169         u_quad_t ifs6_in_error;
 170         /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
 171         u_quad_t ifs6_in_dstunreach;
 172         /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
 173         u_quad_t ifs6_in_adminprohib;
 174         /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
 175         u_quad_t ifs6_in_timeexceed;
 176         /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
 177         u_quad_t ifs6_in_paramprob;
 178         /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
 179         u_quad_t ifs6_in_pkttoobig;
 180         /* ipv6IfIcmpInEchos, # of input echo requests */
 181         u_quad_t ifs6_in_echo;
 182         /* ipv6IfIcmpInEchoReplies, # of input echo replies */
 183         u_quad_t ifs6_in_echoreply;
 184         /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
 185         u_quad_t ifs6_in_routersolicit;
 186         /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
 187         u_quad_t ifs6_in_routeradvert;
 188         /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
 189         u_quad_t ifs6_in_neighborsolicit;
 190         /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
 191         u_quad_t ifs6_in_neighboradvert;
 192         /* ipv6IfIcmpInRedirects, # of input redirects */
 193         u_quad_t ifs6_in_redirect;
 194         /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
 195         u_quad_t ifs6_in_mldquery;
 196         /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
 197         u_quad_t ifs6_in_mldreport;
 198         /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
 199         u_quad_t ifs6_in_mlddone;
 200
 201         /*
 202          * Output statistics. We should solve unresolved routing problem...
 203          */
 204         /* ipv6IfIcmpOutMsgs, total # of output messages */
 205         u_quad_t ifs6_out_msg;
 206         /* ipv6IfIcmpOutErrors, # of output error messages */
 207         u_quad_t ifs6_out_error;
 208         /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
 209         u_quad_t ifs6_out_dstunreach;
 210         /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
 211         u_quad_t ifs6_out_adminprohib;
 212         /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
 213         u_quad_t ifs6_out_timeexceed;
 214         /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
 215         u_quad_t ifs6_out_paramprob;
 216         /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
 217         u_quad_t ifs6_out_pkttoobig;
 218         /* ipv6IfIcmpOutEchos, # of output echo requests */
 219         u_quad_t ifs6_out_echo;
 220         /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
 221         u_quad_t ifs6_out_echoreply;
 222         /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
 223         u_quad_t ifs6_out_routersolicit;
 224         /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
 225         u_quad_t ifs6_out_routeradvert;
 226         /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
 227         u_quad_t ifs6_out_neighborsolicit;
 228         /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
 229         u_quad_t ifs6_out_neighboradvert;
 230         /* ipv6IfIcmpOutRedirects, # of output redirects */
 231         u_quad_t ifs6_out_redirect;
 232         /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
 233         u_quad_t ifs6_out_mldquery;
 234         /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
 235         u_quad_t ifs6_out_mldreport;
 236         /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
 237         u_quad_t ifs6_out_mlddone;
 238 };
 239 #endif /* __APPLE_API_UNSTABLE */
 240
 241 struct  in6_ifreq {
 242         char    ifr_name[IFNAMSIZ];
 243         union {
 244                 struct  sockaddr_in6 ifru_addr;
 245                 struct  sockaddr_in6 ifru_dstaddr;
 246                 short   ifru_flags;
 247                 int     ifru_flags6;
 248                 int     ifru_metric;
 249                 caddr_t ifru_data;
 250                 struct in6_addrlifetime ifru_lifetime;
 251                 struct in6_ifstat ifru_stat;
 252                 struct icmp6_ifstat ifru_icmp6stat;
 253                 u_int32_t ifru_scope_id[16];
 254         } ifr_ifru;
 255 };
 256
 257 struct  in6_aliasreq {
 258         char    ifra_name[IFNAMSIZ];
 259         struct  sockaddr_in6 ifra_addr;
 260         struct  sockaddr_in6 ifra_dstaddr;
 261         struct  sockaddr_in6 ifra_prefixmask;
 262         int     ifra_flags;
 263         struct in6_addrlifetime ifra_lifetime;
 264 };
 265
 266 /* prefix type macro */
 267 #define IN6_PREFIX_ND   1
 268 #define IN6_PREFIX_RR   2
 269
 270 /*
 271  * prefix related flags passed between kernel(NDP related part) and
 272  * user land command(ifconfig) and daemon(rtadvd).
 273  */
 274 struct in6_prflags {
 275         struct prf_ra {
 276                 u_char onlink : 1;
 277                 u_char autonomous : 1;
 278                 u_char reserved : 6;
 279         } prf_ra;
 280         u_char prf_reserved1;
 281         u_short prf_reserved2;
 282         /* want to put this on 4byte offset */
 283         struct prf_rr {
 284                 u_char decrvalid : 1;
 285                 u_char decrprefd : 1;
 286                 u_char reserved : 6;
 287         } prf_rr;
 288         u_char prf_reserved3;
 289         u_short prf_reserved4;
 290 };
 291
 292 struct  in6_prefixreq {
 293         char    ipr_name[IFNAMSIZ];
 294         u_char  ipr_origin;
 295         u_char  ipr_plen;
 296         u_int32_t ipr_vltime;
 297         u_int32_t ipr_pltime;
 298         struct in6_prflags ipr_flags;
 299         struct  sockaddr_in6 ipr_prefix;
 300 };
 301
 302 #define PR_ORIG_RA      0
 303 #define PR_ORIG_RR      1
 304 #define PR_ORIG_STATIC  2
 305 #define PR_ORIG_KERNEL  3
 306
 307 #define ipr_raf_onlink          ipr_flags.prf_ra.onlink
 308 #define ipr_raf_auto            ipr_flags.prf_ra.autonomous
 309
 310 #define ipr_statef_onlink       ipr_flags.prf_state.onlink
 311
 312 #define ipr_rrf_decrvalid       ipr_flags.prf_rr.decrvalid
 313 #define ipr_rrf_decrprefd       ipr_flags.prf_rr.decrprefd
 314
 315 struct  in6_rrenumreq {
 316         char    irr_name[IFNAMSIZ];
 317         u_char  irr_origin;
 318         u_char  irr_m_len;      /* match len for matchprefix */
 319         u_char  irr_m_minlen;   /* minlen for matching prefix */
 320         u_char  irr_m_maxlen;   /* maxlen for matching prefix */
 321         u_char  irr_u_uselen;   /* uselen for adding prefix */
 322         u_char  irr_u_keeplen;  /* keeplen from matching prefix */
 323         struct irr_raflagmask {
 324                 u_char onlink : 1;
 325                 u_char autonomous : 1;
 326                 u_char reserved : 6;
 327         } irr_raflagmask;
 328         u_int32_t irr_vltime;
 329         u_int32_t irr_pltime;
 330         struct in6_prflags irr_flags;
 331         struct  sockaddr_in6 irr_matchprefix;
 332         struct  sockaddr_in6 irr_useprefix;
 333 };
 334
 335 #define irr_raf_mask_onlink     irr_raflagmask.onlink
 336 #define irr_raf_mask_auto       irr_raflagmask.autonomous
 337 #define irr_raf_mask_reserved   irr_raflagmask.reserved
 338
 339 #define irr_raf_onlink          irr_flags.prf_ra.onlink
 340 #define irr_raf_auto            irr_flags.prf_ra.autonomous
 341
 342 #define irr_statef_onlink       irr_flags.prf_state.onlink
 343
 344 #define irr_rrf                 irr_flags.prf_rr
 345 #define irr_rrf_decrvalid       irr_flags.prf_rr.decrvalid
 346 #define irr_rrf_decrprefd       irr_flags.prf_rr.decrprefd
 347
 348 #ifdef __APPLE_API_PRIVATE
 349 /*
 350  * Given a pointer to an in6_ifaddr (ifaddr),
 351  * return a pointer to the addr as a sockaddr_in6
 352  */
 353 #define IA6_IN6(ia)     (&((ia)->ia_addr.sin6_addr))
 354 #define IA6_DSTIN6(ia)  (&((ia)->ia_dstaddr.sin6_addr))
 355 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
 356 #define IA6_SIN6(ia)    (&((ia)->ia_addr))
 357 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
 358 #define IFA_IN6(x)      (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
 359 #define IFA_DSTIN6(x)   (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
 360
 361 #define IFPR_IN6(x)     (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
 362
 363
 364 #ifdef __APPLE__
 365 /*
 366  * Event data, internet6 style.
 367  */
 368
 369 struct kev_in6_data {
 370         struct net_event_data   link_data;
 371         struct  sockaddr_in6 ia_addr;   /* interface address */
 372         struct  sockaddr_in6 ia_net;    /* network number of interface */
 373         struct  sockaddr_in6 ia_dstaddr; /* space for destination addr */
 374         struct  sockaddr_in6 ia_prefixmask; /* prefix mask */
 375         u_int32_t ia_plen;              /* prefix length */
 376         u_int32_t ia6_flags;            /* address flags from in6_ifaddr */
 377         struct in6_addrlifetime ia_lifetime; /* address life info */
 378 };
 379
 380
 381 /*
 382  * Define inet6 event subclass and specific inet6 events.
 383  */
 384
 385 #define KEV_INET6_SUBCLASS 6    /* inet6 subclass identifier */
 386
 387 #define KEV_INET6_NEW_USER_ADDR         1       /* Userland configured IPv6 address */
 388 #define KEV_INET6_CHANGED_ADDR          2       /* Address changed event (future) */
 389 #define KEV_INET6_ADDR_DELETED          3       /* IPv6 add. in ia_addr field was deleted */
 390 #define KEV_INET6_NEW_LL_ADDR           4       /* Autoconfigured linklocal address has appeared */
 391 #define KEV_INET6_NEW_RTADV_ADDR        5       /* Autoconf router advertised address has appeared */
 392 #define KEV_INET6_DEFROUTER             6       /* Default router dectected by kernel */
 393
 394 #ifdef KERNEL
 395 /* Utility function used inside netinet6 kernel code for generating events */
 396 void in6_post_msg(struct ifnet *, u_long, struct in6_ifaddr *);
 397 #endif
 398 #endif /* __APPLE__ */
 399 #endif /* __APPLE_API_PRIVATE */
 400
 401 #ifdef KERNEL
 402 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m)      (       \
 403         (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
 404         (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
 405         (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
 406         (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
 407 #endif
 408
 409 #define SIOCSIFADDR_IN6          _IOW('i', 12, struct in6_ifreq)
 410 #define SIOCGIFADDR_IN6         _IOWR('i', 33, struct in6_ifreq)
 411
 412 #ifdef KERNEL
 413 #ifdef __APPLE_API_OBSOLETE
 414 /*
 415  * SIOCSxxx ioctls should be unused (see comments in in6.c), but
 416  * we do not shift numbers for binary compatibility.
 417  */
 418 #define SIOCSIFDSTADDR_IN6       _IOW('i', 14, struct in6_ifreq)
 419 #define SIOCSIFNETMASK_IN6       _IOW('i', 22, struct in6_ifreq)
 420 #endif /* __APPLE_API_OBSOLETE */
 421 #endif
 422
 423 #define SIOCGIFDSTADDR_IN6      _IOWR('i', 34, struct in6_ifreq)
 424 #define SIOCGIFNETMASK_IN6      _IOWR('i', 37, struct in6_ifreq)
 425
 426 #define SIOCDIFADDR_IN6          _IOW('i', 25, struct in6_ifreq)
 427 #define SIOCAIFADDR_IN6          _IOW('i', 26, struct in6_aliasreq)
 428
 429 #define SIOCSIFPHYADDR_IN6      _IOW('i', 62, struct in6_aliasreq)
 430 #define SIOCGIFPSRCADDR_IN6     _IOWR('i', 63, struct in6_ifreq)
 431 #define SIOCGIFPDSTADDR_IN6     _IOWR('i', 64, struct in6_ifreq)
 432 #define SIOCGIFAFLAG_IN6        _IOWR('i', 73, struct in6_ifreq)
 433 #define SIOCGDRLST_IN6          _IOWR('i', 74, struct in6_drlist)
 434 #define SIOCGPRLST_IN6          _IOWR('i', 75, struct in6_prlist)
 435 #define OSIOCGIFINFO_IN6        _IOWR('i', 108, struct in6_ondireq)
 436 #define SIOCGIFINFO_IN6         _IOWR('i', 76, struct in6_ondireq)
 437 #define SIOCSNDFLUSH_IN6        _IOWR('i', 77, struct in6_ifreq)
 438 #define SIOCGNBRINFO_IN6        _IOWR('i', 78, struct in6_nbrinfo)
 439 #define SIOCSPFXFLUSH_IN6       _IOWR('i', 79, struct in6_ifreq)
 440 #define SIOCSRTRFLUSH_IN6       _IOWR('i', 80, struct in6_ifreq)
 441
 442 #define SIOCGIFALIFETIME_IN6    _IOWR('i', 81, struct in6_ifreq)
 443 #define SIOCSIFALIFETIME_IN6    _IOWR('i', 82, struct in6_ifreq)
 444 #define SIOCGIFSTAT_IN6         _IOWR('i', 83, struct in6_ifreq)
 445 #define SIOCGIFSTAT_ICMP6       _IOWR('i', 84, struct in6_ifreq)
 446
 447 #define SIOCSDEFIFACE_IN6       _IOWR('i', 85, struct in6_ndifreq)
 448 #define SIOCGDEFIFACE_IN6       _IOWR('i', 86, struct in6_ndifreq)
 449
 450 #define SIOCSIFINFO_FLAGS       _IOWR('i', 87, struct in6_ndireq) /* XXX */
 451
 452 #define SIOCSSCOPE6             _IOW('i', 88, struct in6_ifreq)
 453 #define SIOCGSCOPE6             _IOWR('i', 89, struct in6_ifreq)
 454 #define SIOCGSCOPE6DEF          _IOWR('i', 90, struct in6_ifreq)
 455
 456 #define SIOCSIFPREFIX_IN6       _IOW('i', 100, struct in6_prefixreq) /* set */
 457 #define SIOCGIFPREFIX_IN6       _IOWR('i', 101, struct in6_prefixreq) /* get */
 458 #define SIOCDIFPREFIX_IN6       _IOW('i', 102, struct in6_prefixreq) /* del */
 459 #define SIOCAIFPREFIX_IN6       _IOW('i', 103, struct in6_rrenumreq) /* add */
 460 #define SIOCCIFPREFIX_IN6       _IOW('i', 104, \
 461                                      struct in6_rrenumreq) /* change */
 462 #define SIOCSGIFPREFIX_IN6      _IOW('i', 105, \
 463                                      struct in6_rrenumreq) /* set global */
 464
 465 #define SIOCGETSGCNT_IN6        _IOWR('u', 28, \
 466                                       struct sioc_sg_req6) /* get s,g pkt cnt */
 467 #define SIOCGETMIFCNT_IN6       _IOWR('u', 107, \
 468                                       struct sioc_mif_req6) /* get pkt cnt per if */
 469
 470 #define IN6_IFF_ANYCAST         0x01    /* anycast address */
 471 #define IN6_IFF_TENTATIVE       0x02    /* tentative address */
 472 #define IN6_IFF_DUPLICATED      0x04    /* DAD detected duplicate */
 473 #define IN6_IFF_DETACHED        0x08    /* may be detached from the link */
 474 #define IN6_IFF_DEPRECATED      0x10    /* deprecated address */
 475 #define IN6_IFF_NODAD           0x20    /* don't perform DAD on this address
 476                                          * (used only at first SIOC* call)
 477                                          */
 478 #define IN6_IFF_AUTOCONF        0x40    /* autoconfigurable address. */
 479 #define IN6_IFF_TEMPORARY       0x80    /* temporary (anonymous) address. */
 480 #define IN6_IFF_NOPFX           0x8000  /* skip kernel prefix management.
 481                                          * XXX: this should be temporary.
 482                                          */
 483
 484 /* do not input/output */
 485 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
 486
 487 #ifdef KERNEL
 488 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
 489 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
 490 #endif
 491
 492 #ifdef KERNEL
 493 #ifdef __APPLE_API_PRIVATE
 494 extern struct in6_ifaddr *in6_ifaddr;
 495
 496 extern struct in6_ifstat **in6_ifstat;
 497 extern size_t in6_ifstatmax;
 498 extern struct icmp6stat icmp6stat;
 499 extern struct icmp6_ifstat **icmp6_ifstat;
 500 extern size_t icmp6_ifstatmax;
 501 #define in6_ifstat_inc(ifp, tag) \
 502 do {                                                            \
 503         if ((ifp) && (ifp)->if_index <= if_index                \
 504          && (ifp)->if_index < in6_ifstatmax                     \
 505          && in6_ifstat && in6_ifstat[(ifp)->if_index]) {        \
 506                 in6_ifstat[(ifp)->if_index]->tag++;             \
 507         }                                                       \
 508 } while (0)
 509
 510 extern struct ifqueue ip6intrq;         /* IP6 packet input queue */
 511 extern struct in6_addr zeroin6_addr;
 512 extern u_char inet6ctlerrmap[];
 513 extern unsigned long in6_maxmtu;
 514 #ifdef MALLOC_DECLARE
 515 MALLOC_DECLARE(M_IPMADDR);
 516 #endif
 517
 518 /*
 519  * Macro for finding the internet address structure (in6_ifaddr) corresponding
 520  * to a given interface (ifnet structure).
 521  */
 522
 523 #define IFP_TO_IA6(ifp, ia)                             \
 524 /* struct ifnet *ifp; */                                \
 525 /* struct in6_ifaddr *ia; */                            \
 526 do {                                                                    \
 527         struct ifaddr *ifa;                                             \
 528         for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) {   \
 529                 if (!ifa->ifa_addr)                                     \
 530                         continue;                                       \
 531                 if (ifa->ifa_addr->sa_family == AF_INET6)               \
 532                         break;                                          \
 533         }                                                               \
 534         (ia) = (struct in6_ifaddr *)ifa;                                \
 535 } while (0)
 536
 537 #endif /* __APPLE_API_PRIVATE */
 538 #endif /* KERNEL */
 539
 540 #ifdef __APPLE_API_PRIVATE
 541 /*
 542  * Multi-cast membership entry.  One for each group/ifp that a PCB
 543  * belongs to.
 544  */
 545 struct in6_multi_mship {
 546         struct  in6_multi *i6mm_maddr;  /* Multicast address pointer */
 547         LIST_ENTRY(in6_multi_mship) i6mm_chain;  /* multicast options chain */
 548 };
 549
 550 struct  in6_multi {
 551         LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
 552         struct  in6_addr in6m_addr;     /* IP6 multicast address */
 553         struct  ifnet *in6m_ifp;        /* back pointer to ifnet */
 554         struct  ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
 555         u_int   in6m_refcount;          /* # membership claims by sockets */
 556         u_int   in6m_state;             /* state of the membership */
 557         u_int   in6m_timer;             /* MLD6 listener report timer */
 558 };
 559 #endif /* __APPLE_API_PRIVATE */
 560
 561 #ifdef KERNEL
 562 #ifdef __APPLE_API_PRIVATE
 563 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
 564
 565 /*
 566  * Structure used by macros below to remember position when stepping through
 567  * all of eht in6_multi records.
 568  */
 569 struct  in6_multistep {
 570         struct  in6_ifaddr *i_ia;
 571         struct  in6_multi *i_in6m;
 572 };
 573
 574 /*
 575  * Macros for looking up the in6_multi record for a given IP6 multicast
 576  * address on a given interface. If no matching record is found, "in6m"
 577  * returns NLL.
 578  */
 579
 580 #define IN6_LOOKUP_MULTI(addr, ifp, in6m)                       \
 581 /* struct in6_addr addr; */                                     \
 582 /* struct ifnet *ifp; */                                        \
 583 /* struct in6_multi *in6m; */                                   \
 584 do { \
 585         struct ifmultiaddr *ifma; \
 586         for (ifma = (ifp)->if_multiaddrs.lh_first; ifma; \
 587              ifma = ifma->ifma_link.le_next) { \
 588                 if (ifma->ifma_addr->sa_family == AF_INET6 \
 589                     && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \
 590                                           &(addr))) \
 591                         break; \
 592         } \
 593         (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \
 594 } while(0)
 595
 596 /*
 597  * Macro to step through all of the in6_multi records, one at a time.
 598  * The current position is remembered in "step", which the caller must
 599  * provide.  IN6_FIRST_MULTI(), below, must be called to initialize "step"
 600  * and get the first record.  Both macros return a NULL "in6m" when there
 601  * are no remaining records.
 602  */
 603 #define IN6_NEXT_MULTI(step, in6m)                                      \
 604 /* struct in6_multistep step; */                                        \
 605 /* struct in6_multi *in6m; */                                           \
 606 do { \
 607         if (((in6m) = (step).i_in6m) != NULL) \
 608                 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
 609 } while(0)
 610
 611 #define IN6_FIRST_MULTI(step, in6m)             \
 612 /* struct in6_multistep step; */                \
 613 /* struct in6_multi *in6m */                    \
 614 do { \
 615         (step).i_in6m = in6_multihead.lh_first; \
 616                 IN6_NEXT_MULTI((step), (in6m)); \
 617 } while(0)
 618
 619 struct  in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *,
 620                                      int *));
 621 void    in6_delmulti __P((struct in6_multi *));
 622 extern int in6_ifindex2scopeid __P((int));
 623 extern int in6_mask2len __P((struct in6_addr *, u_char *));
 624 extern void in6_len2mask __P((struct in6_addr *, int));
 625 int     in6_control __P((struct socket *,
 626                          u_long, caddr_t, struct ifnet *, struct proc *));
 627 int     in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *,
 628                             struct in6_ifaddr *));
 629 void    in6_purgeaddr __P((struct ifaddr *));
 630 int     in6if_do_dad __P((struct ifnet *));
 631 void    in6_purgeif __P((struct ifnet *));
 632 void    in6_savemkludge __P((struct in6_ifaddr *));
 633 void    in6_setmaxmtu   __P((void));
 634 void    in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *));
 635 void    in6_purgemkludge __P((struct ifnet *));
 636 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int));
 637 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *,
 638                                              struct in6_addr *));
 639 char    *ip6_sprintf __P((const struct in6_addr *));
 640 int     in6_addr2scopeid __P((struct ifnet *, struct in6_addr *));
 641 int     in6_matchlen __P((struct in6_addr *, struct in6_addr *));
 642 int     in6_are_prefix_equal __P((struct in6_addr *p1, struct in6_addr *p2,
 643                                   int len));
 644 void    in6_prefixlen2mask __P((struct in6_addr *maskp, int len));
 645 int     in6_prefix_ioctl __P((struct socket *so, u_long cmd, caddr_t data,
 646                               struct ifnet *ifp));
 647 int     in6_prefix_add_ifid __P((int iilen, struct in6_ifaddr *ia));
 648 void    in6_prefix_remove_ifid __P((int iilen, struct in6_ifaddr *ia));
 649 void    in6_purgeprefix __P((struct ifnet *));
 650
 651 int     in6_is_addr_deprecated __P((struct sockaddr_in6 *));
 652 struct inpcb;
 653 int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *,
 654         struct inpcb *, struct ifnet **));
 655 int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *,
 656         struct ifnet *));
 657 void in6_clearscope __P((struct in6_addr *));
 658 #endif /* __APPLE_API_PRIVATE */
 659 #endif /* KERNEL */
 660
 661 #endif /* _NETINET6_IN6_VAR_H_ */