sys/netinet6/in6_var.h

   1 /*      $FreeBSD: src/sys/netinet6/in6_var.h,v 1.3.2.3 2002/04/28 05:40:27 suz Exp $    */
   2 /*      $DragonFly: src/sys/netinet6/in6_var.h,v 1.10 2008/10/03 07:59:20 hasso Exp $   */
   3 /*      $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 itojun Exp $        */
   4
   5 /*
   6  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the project nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 /*
  35  * Copyright (c) 1985, 1986, 1993
  36  *      The Regents of the University of California.  All rights reserved.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  * 1. Redistributions of source code must retain the above copyright
  42  *    notice, this list of conditions and the following disclaimer.
  43  * 2. Redistributions in binary form must reproduce the above copyright
  44  *    notice, this list of conditions and the following disclaimer in the
  45  *    documentation and/or other materials provided with the distribution.
  46  * 3. Neither the name of the University nor the names of its contributors
  47  *    may be used to endorse or promote products derived from this software
  48  *    without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  60  * SUCH DAMAGE.
  61  *
  62  *      @(#)in_var.h    8.1 (Berkeley) 6/10/93
  63  */
  64
  65 #ifndef _NETINET6_IN6_VAR_H_
  66 #define _NETINET6_IN6_VAR_H_
  67
  68 #ifndef _SYS_TYPES_H_
  69 #include <sys/types.h>
  70 #endif
  71 #ifndef _SYS_IOCCOM_H_
  72 #include <sys/ioccom.h>
  73 #endif
  74 #ifndef _SYS_TIME_H_
  75 #include <sys/time.h>
  76 #endif
  77 #ifndef _NET_IF_VAR_H_
  78 #include <net/if_var.h>
  79 #endif
  80 #ifndef _NETINET_IN_H_
  81 #include <netinet/in.h>
  82 #endif
  83
  84 /*
  85  * Interface address, Internet version.  One of these structures
  86  * is allocated for each interface with an Internet address.
  87  * The ifaddr structure contains the protocol-independent part
  88  * of the structure and is assumed to be first.
  89  */
  90
  91 /*
  92  * pltime/vltime are just for future reference (required to implements 2
  93  * hour rule for hosts).  they should never be modified by nd6_timeout or
  94  * anywhere else.
  95  *      userland -> kernel: accept pltime/vltime
  96  *      kernel -> userland: throw up everything
  97  *      in kernel: modify preferred/expire only
  98  */
  99 struct in6_addrlifetime {
 100         time_t ia6t_expire;     /* valid lifetime expiration time */
 101         time_t ia6t_preferred;  /* preferred lifetime expiration time */
 102         u_int32_t ia6t_vltime;  /* valid lifetime */
 103         u_int32_t ia6t_pltime;  /* prefix lifetime */
 104 };
 105
 106 struct nd_ifinfo;
 107 struct scope6_id;
 108
 109 struct in6_ifextra {
 110         struct in6_ifstat *in6_ifstat;
 111         struct icmp6_ifstat *icmp6_ifstat;
 112         struct nd_ifinfo *nd_ifinfo;
 113         struct scope6_id *scope6_id;
 114 };
 115
 116 struct  in6_ifaddr {
 117         struct  ifaddr ia_ifa;          /* protocol-independent info */
 118 #define ia_ifp          ia_ifa.ifa_ifp
 119 #define ia_flags        ia_ifa.ifa_flags
 120         struct  sockaddr_in6 ia_addr;   /* interface address */
 121         struct  sockaddr_in6 ia_net;    /* network number of interface */
 122         struct  sockaddr_in6 ia_dstaddr; /* space for destination addr */
 123         struct  sockaddr_in6 ia_prefixmask; /* prefix mask */
 124         u_int32_t ia_plen;              /* prefix length */
 125         struct  in6_ifaddr *ia_next;    /* next in6 list of IP6 addresses */
 126         int     ia6_flags;
 127
 128         struct in6_addrlifetime ia6_lifetime;
 129         /* back pointer to the ND prefix (for autoconfigured addresses only) */
 130         struct nd_prefix *ia6_ndpr;
 131 };
 132
 133 /* control structure to manage address selection policy */
 134 struct in6_addrpolicy {
 135         struct sockaddr_in6 addr; /* prefix address */
 136         struct sockaddr_in6 addrmask; /* prefix mask */
 137         int preced;             /* precedence */
 138         int label;              /* matching label */
 139         u_quad_t use;           /* statistics */
 140 };
 141
 142 /*
 143  * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
 144  */
 145 struct in6_ifstat {
 146         u_quad_t ifs6_in_receive;       /* # of total input datagram */
 147         u_quad_t ifs6_in_hdrerr;        /* # of datagrams with invalid hdr */
 148         u_quad_t ifs6_in_toobig;        /* # of datagrams exceeded MTU */
 149         u_quad_t ifs6_in_noroute;       /* # of datagrams with no route */
 150         u_quad_t ifs6_in_addrerr;       /* # of datagrams with invalid dst */
 151         u_quad_t ifs6_in_protounknown;  /* # of datagrams with unknown proto */
 152                                         /* NOTE: increment on final dst if */
 153         u_quad_t ifs6_in_truncated;     /* # of truncated datagrams */
 154         u_quad_t ifs6_in_discard;       /* # of discarded datagrams */
 155                                         /* NOTE: fragment timeout is not here */
 156         u_quad_t ifs6_in_deliver;       /* # of datagrams delivered to ULP */
 157                                         /* NOTE: increment on final dst if */
 158         u_quad_t ifs6_out_forward;      /* # of datagrams forwarded */
 159                                         /* NOTE: increment on outgoing if */
 160         u_quad_t ifs6_out_request;      /* # of outgoing datagrams from ULP */
 161                                         /* NOTE: does not include forwrads */
 162         u_quad_t ifs6_out_discard;      /* # of discarded datagrams */
 163         u_quad_t ifs6_out_fragok;       /* # of datagrams fragmented */
 164         u_quad_t ifs6_out_fragfail;     /* # of datagrams failed on fragment */
 165         u_quad_t ifs6_out_fragcreat;    /* # of fragment datagrams */
 166                                         /* NOTE: this is # after fragment */
 167         u_quad_t ifs6_reass_reqd;       /* # of incoming fragmented packets */
 168                                         /* NOTE: increment on final dst if */
 169         u_quad_t ifs6_reass_ok;         /* # of reassembled packets */
 170                                         /* NOTE: this is # after reass */
 171                                         /* NOTE: increment on final dst if */
 172         u_quad_t ifs6_reass_fail;       /* # of reass failures */
 173                                         /* NOTE: may not be packet count */
 174                                         /* NOTE: increment on final dst if */
 175         u_quad_t ifs6_in_mcast;         /* # of inbound multicast datagrams */
 176         u_quad_t ifs6_out_mcast;        /* # of outbound multicast datagrams */
 177 };
 178
 179 /*
 180  * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
 181  * XXX: I'm not sure if this file is the right place for this structure...
 182  */
 183 struct icmp6_ifstat {
 184         /*
 185          * Input statistics
 186          */
 187         /* ipv6IfIcmpInMsgs, total # of input messages */
 188         u_quad_t ifs6_in_msg;
 189         /* ipv6IfIcmpInErrors, # of input error messages */
 190         u_quad_t ifs6_in_error;
 191         /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
 192         u_quad_t ifs6_in_dstunreach;
 193         /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
 194         u_quad_t ifs6_in_adminprohib;
 195         /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
 196         u_quad_t ifs6_in_timeexceed;
 197         /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
 198         u_quad_t ifs6_in_paramprob;
 199         /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
 200         u_quad_t ifs6_in_pkttoobig;
 201         /* ipv6IfIcmpInEchos, # of input echo requests */
 202         u_quad_t ifs6_in_echo;
 203         /* ipv6IfIcmpInEchoReplies, # of input echo replies */
 204         u_quad_t ifs6_in_echoreply;
 205         /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
 206         u_quad_t ifs6_in_routersolicit;
 207         /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
 208         u_quad_t ifs6_in_routeradvert;
 209         /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
 210         u_quad_t ifs6_in_neighborsolicit;
 211         /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
 212         u_quad_t ifs6_in_neighboradvert;
 213         /* ipv6IfIcmpInRedirects, # of input redirects */
 214         u_quad_t ifs6_in_redirect;
 215         /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
 216         u_quad_t ifs6_in_mldquery;
 217         /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
 218         u_quad_t ifs6_in_mldreport;
 219         /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
 220         u_quad_t ifs6_in_mlddone;
 221
 222         /*
 223          * Output statistics. We should solve unresolved routing problem...
 224          */
 225         /* ipv6IfIcmpOutMsgs, total # of output messages */
 226         u_quad_t ifs6_out_msg;
 227         /* ipv6IfIcmpOutErrors, # of output error messages */
 228         u_quad_t ifs6_out_error;
 229         /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
 230         u_quad_t ifs6_out_dstunreach;
 231         /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
 232         u_quad_t ifs6_out_adminprohib;
 233         /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
 234         u_quad_t ifs6_out_timeexceed;
 235         /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
 236         u_quad_t ifs6_out_paramprob;
 237         /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
 238         u_quad_t ifs6_out_pkttoobig;
 239         /* ipv6IfIcmpOutEchos, # of output echo requests */
 240         u_quad_t ifs6_out_echo;
 241         /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
 242         u_quad_t ifs6_out_echoreply;
 243         /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
 244         u_quad_t ifs6_out_routersolicit;
 245         /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
 246         u_quad_t ifs6_out_routeradvert;
 247         /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
 248         u_quad_t ifs6_out_neighborsolicit;
 249         /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
 250         u_quad_t ifs6_out_neighboradvert;
 251         /* ipv6IfIcmpOutRedirects, # of output redirects */
 252         u_quad_t ifs6_out_redirect;
 253         /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
 254         u_quad_t ifs6_out_mldquery;
 255         /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
 256         u_quad_t ifs6_out_mldreport;
 257         /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
 258         u_quad_t ifs6_out_mlddone;
 259 };
 260
 261 struct  in6_ifreq {
 262         char    ifr_name[IFNAMSIZ];
 263         union {
 264                 struct  sockaddr_in6 ifru_addr;
 265                 struct  sockaddr_in6 ifru_dstaddr;
 266                 short   ifru_flags;
 267                 int     ifru_flags6;
 268                 int     ifru_metric;
 269                 caddr_t ifru_data;
 270                 struct in6_addrlifetime ifru_lifetime;
 271                 struct in6_ifstat ifru_stat;
 272                 struct icmp6_ifstat ifru_icmp6stat;
 273                 u_int32_t ifru_scope_id[16];
 274         } ifr_ifru;
 275 };
 276
 277 struct  in6_aliasreq {
 278         char    ifra_name[IFNAMSIZ];
 279         struct  sockaddr_in6 ifra_addr;
 280         struct  sockaddr_in6 ifra_dstaddr;
 281         struct  sockaddr_in6 ifra_prefixmask;
 282         int     ifra_flags;
 283         struct in6_addrlifetime ifra_lifetime;
 284 };
 285
 286 /* prefix type macro */
 287 #define IN6_PREFIX_ND   1
 288 #define IN6_PREFIX_RR   2
 289
 290 /*
 291  * prefix related flags passed between kernel(NDP related part) and
 292  * user land command(ifconfig) and daemon(rtadvd).
 293  */
 294 struct in6_prflags {
 295         struct prf_ra {
 296                 u_char onlink : 1;
 297                 u_char autonomous : 1;
 298                 u_char reserved : 6;
 299         } prf_ra;
 300         u_char prf_reserved1;
 301         u_short prf_reserved2;
 302         /* want to put this on 4byte offset */
 303         struct prf_rr {
 304                 u_char decrvalid : 1;
 305                 u_char decrprefd : 1;
 306                 u_char reserved : 6;
 307         } prf_rr;
 308         u_char prf_reserved3;
 309         u_short prf_reserved4;
 310 };
 311
 312 struct  in6_prefixreq {
 313         char    ipr_name[IFNAMSIZ];
 314         u_char  ipr_origin;
 315         u_char  ipr_plen;
 316         u_int32_t ipr_vltime;
 317         u_int32_t ipr_pltime;
 318         struct in6_prflags ipr_flags;
 319         struct  sockaddr_in6 ipr_prefix;
 320 };
 321
 322 #define PR_ORIG_RA      0
 323 #define PR_ORIG_RR      1
 324 #define PR_ORIG_STATIC  2
 325 #define PR_ORIG_KERNEL  3
 326
 327 #define ipr_raf_onlink          ipr_flags.prf_ra.onlink
 328 #define ipr_raf_auto            ipr_flags.prf_ra.autonomous
 329
 330 #define ipr_statef_onlink       ipr_flags.prf_state.onlink
 331
 332 #define ipr_rrf_decrvalid       ipr_flags.prf_rr.decrvalid
 333 #define ipr_rrf_decrprefd       ipr_flags.prf_rr.decrprefd
 334
 335 struct  in6_rrenumreq {
 336         char    irr_name[IFNAMSIZ];
 337         u_char  irr_origin;
 338         u_char  irr_m_len;      /* match len for matchprefix */
 339         u_char  irr_m_minlen;   /* minlen for matching prefix */
 340         u_char  irr_m_maxlen;   /* maxlen for matching prefix */
 341         u_char  irr_u_uselen;   /* uselen for adding prefix */
 342         u_char  irr_u_keeplen;  /* keeplen from matching prefix */
 343         struct irr_raflagmask {
 344                 u_char onlink : 1;
 345                 u_char autonomous : 1;
 346                 u_char reserved : 6;
 347         } irr_raflagmask;
 348         u_int32_t irr_vltime;
 349         u_int32_t irr_pltime;
 350         struct in6_prflags irr_flags;
 351         struct  sockaddr_in6 irr_matchprefix;
 352         struct  sockaddr_in6 irr_useprefix;
 353 };
 354
 355 #define irr_raf_mask_onlink     irr_raflagmask.onlink
 356 #define irr_raf_mask_auto       irr_raflagmask.autonomous
 357 #define irr_raf_mask_reserved   irr_raflagmask.reserved
 358
 359 #define irr_raf_onlink          irr_flags.prf_ra.onlink
 360 #define irr_raf_auto            irr_flags.prf_ra.autonomous
 361
 362 #define irr_statef_onlink       irr_flags.prf_state.onlink
 363
 364 #define irr_rrf                 irr_flags.prf_rr
 365 #define irr_rrf_decrvalid       irr_flags.prf_rr.decrvalid
 366 #define irr_rrf_decrprefd       irr_flags.prf_rr.decrprefd
 367
 368 /*
 369  * Given a pointer to an in6_ifaddr (ifaddr),
 370  * return a pointer to the addr as a sockaddr_in6
 371  */
 372 #define IA6_IN6(ia)     (&((ia)->ia_addr.sin6_addr))
 373 #define IA6_DSTIN6(ia)  (&((ia)->ia_dstaddr.sin6_addr))
 374 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
 375 #define IA6_SIN6(ia)    (&((ia)->ia_addr))
 376 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
 377 #define IFA_IN6(x)      (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
 378 #define IFA_DSTIN6(x)   (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
 379
 380 #define IFPR_IN6(x)     (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
 381
 382 #ifdef _KERNEL
 383 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m)      (       \
 384         (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
 385         (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
 386         (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
 387         (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
 388 #endif
 389
 390 #define SIOCSIFADDR_IN6          _IOW('i', 12, struct in6_ifreq)
 391 #define SIOCGIFADDR_IN6         _IOWR('i', 33, struct in6_ifreq)
 392
 393 #ifdef _KERNEL
 394 /*
 395  * SIOCSxxx ioctls should be unused (see comments in in6.c), but
 396  * we do not shift numbers for binary compatibility.
 397  */
 398 #define SIOCSIFDSTADDR_IN6       _IOW('i', 14, struct in6_ifreq)
 399 #define SIOCSIFNETMASK_IN6       _IOW('i', 22, struct in6_ifreq)
 400 #endif
 401
 402 #define SIOCGIFDSTADDR_IN6      _IOWR('i', 34, struct in6_ifreq)
 403 #define SIOCGIFNETMASK_IN6      _IOWR('i', 37, struct in6_ifreq)
 404
 405 #define SIOCDIFADDR_IN6          _IOW('i', 25, struct in6_ifreq)
 406 #define SIOCAIFADDR_IN6          _IOW('i', 26, struct in6_aliasreq)
 407
 408 #define SIOCSIFPHYADDR_IN6       _IOW('i', 70, struct in6_aliasreq)
 409 #define SIOCGIFPSRCADDR_IN6     _IOWR('i', 71, struct in6_ifreq)
 410 #define SIOCGIFPDSTADDR_IN6     _IOWR('i', 72, struct in6_ifreq)
 411
 412 #define SIOCGIFAFLAG_IN6        _IOWR('i', 73, struct in6_ifreq)
 413
 414 #define SIOCGDRLST_IN6          _IOWR('i', 74, struct in6_drlist)
 415 #define SIOCGPRLST_IN6          _IOWR('i', 75, struct in6_prlist)
 416 #ifdef _KERNEL
 417 #define OSIOCGIFINFO_IN6        _IOWR('i', 76, struct in6_ondireq)
 418 #endif
 419 #define SIOCGIFINFO_IN6         _IOWR('i', 108, struct in6_ndireq)
 420 #define SIOCSNDFLUSH_IN6        _IOWR('i', 77, struct in6_ifreq)
 421 #define SIOCGNBRINFO_IN6        _IOWR('i', 78, struct in6_nbrinfo)
 422 #define SIOCSPFXFLUSH_IN6       _IOWR('i', 79, struct in6_ifreq)
 423 #define SIOCSRTRFLUSH_IN6       _IOWR('i', 80, struct in6_ifreq)
 424
 425 #define SIOCGIFALIFETIME_IN6    _IOWR('i', 81, struct in6_ifreq)
 426 #define SIOCSIFALIFETIME_IN6    _IOWR('i', 82, struct in6_ifreq)
 427 #define SIOCGIFSTAT_IN6         _IOWR('i', 83, struct in6_ifreq)
 428 #define SIOCGIFSTAT_ICMP6       _IOWR('i', 84, struct in6_ifreq)
 429
 430 #define SIOCSDEFIFACE_IN6       _IOWR('i', 85, struct in6_ndifreq)
 431 #define SIOCGDEFIFACE_IN6       _IOWR('i', 86, struct in6_ndifreq)
 432
 433 #define SIOCSIFINFO_FLAGS       _IOWR('i', 87, struct in6_ndireq) /* XXX */
 434
 435 #define SIOCSSCOPE6             _IOW('i', 88, struct in6_ifreq)
 436 #define SIOCGSCOPE6             _IOWR('i', 89, struct in6_ifreq)
 437 #define SIOCGSCOPE6DEF          _IOWR('i', 90, struct in6_ifreq)
 438
 439 #define SIOCSIFPREFIX_IN6       _IOW('i', 100, struct in6_prefixreq) /* set */
 440 #define SIOCGIFPREFIX_IN6       _IOWR('i', 101, struct in6_prefixreq) /* get */
 441 #define SIOCDIFPREFIX_IN6       _IOW('i', 102, struct in6_prefixreq) /* del */
 442 #define SIOCAIFPREFIX_IN6       _IOW('i', 103, struct in6_rrenumreq) /* add */
 443 #define SIOCCIFPREFIX_IN6       _IOW('i', 104, \
 444                                      struct in6_rrenumreq) /* change */
 445 #define SIOCSGIFPREFIX_IN6      _IOW('i', 105, \
 446                                      struct in6_rrenumreq) /* set global */
 447
 448 #define SIOCGETSGCNT_IN6        _IOWR('u', 106, \
 449                                       struct sioc_sg_req6) /* get s,g pkt cnt */
 450 #define SIOCGETMIFCNT_IN6       _IOWR('u', 107, \
 451                                       struct sioc_mif_req6) /* get pkt cnt per if */
 452
 453 #define SIOCAADDRCTL_POLICY     _IOW('u', 108, struct in6_addrpolicy)
 454 #define SIOCDADDRCTL_POLICY     _IOW('u', 109, struct in6_addrpolicy)
 455
 456 #define IN6_IFF_ANYCAST         0x01    /* anycast address */
 457 #define IN6_IFF_TENTATIVE       0x02    /* tentative address */
 458 #define IN6_IFF_DUPLICATED      0x04    /* DAD detected duplicate */
 459 #define IN6_IFF_DETACHED        0x08    /* may be detached from the link */
 460 #define IN6_IFF_DEPRECATED      0x10    /* deprecated address */
 461 #define IN6_IFF_NODAD           0x20    /* don't perform DAD on this address
 462                                          * (used only at first SIOC* call)
 463                                          */
 464 #define IN6_IFF_AUTOCONF        0x40    /* autoconfigurable address. */
 465 #define IN6_IFF_TEMPORARY       0x80    /* temporary (anonymous) address. */
 466 #define IN6_IFF_NOPFX           0x8000  /* skip kernel prefix management.
 467                                          * XXX: this should be temporary.
 468                                          */
 469
 470 /* do not input/output */
 471 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
 472
 473 #ifdef _KERNEL
 474 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
 475 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
 476 #endif
 477
 478 #ifdef _KERNEL
 479 extern struct in6_ifaddr *in6_ifaddr;
 480
 481 extern struct icmp6stat icmp6stat;
 482 #define in6_ifstat_inc(ifp, tag) \
 483 do {                                                                    \
 484         struct in6_ifextra *xtra;                                       \
 485         if ((ifp) && (xtra = (ifp)->if_afdata[AF_INET6]) != NULL)       \
 486                 xtra->in6_ifstat->tag++;                                \
 487 } while (0)
 488
 489 extern struct ifqueue ip6intrq;         /* IP6 packet input queue */
 490 extern struct in6_addr zeroin6_addr;
 491 extern u_char inet6ctlerrmap[];
 492 extern unsigned long in6_maxmtu;
 493 #ifdef MALLOC_DECLARE
 494 MALLOC_DECLARE(M_IPMADDR);
 495 #endif
 496
 497 /*
 498  * Macro for finding the internet address structure (in6_ifaddr) corresponding
 499  * to a given interface (ifnet structure).
 500  */
 501
 502 #define IFP_TO_IA6(ifp, ia)                             \
 503 /* struct ifnet *ifp; */                                \
 504 /* struct in6_ifaddr *ia; */                            \
 505 do {                                                                    \
 506         struct ifaddr_container *ifac;                                  \
 507         TAILQ_FOREACH(ifac, &(ifp)->if_addrheads[mycpuid], ifa_list) {  \
 508                 if (!ifac->ifa->ifa_addr)                               \
 509                         continue;                                       \
 510                 if (ifac->ifa->ifa_addr->sa_family == AF_INET6)         \
 511                         break;                                          \
 512         }                                                               \
 513         (ia) = ifac == NULL ? NULL : (struct in6_ifaddr *)(ifac->ifa);  \
 514 } while (0)
 515
 516 #endif /* _KERNEL */
 517
 518 /*
 519  * Multi-cast membership entry.  One for each group/ifp that a PCB
 520  * belongs to.
 521  */
 522 struct in6_multi_mship {
 523         struct  in6_multi *i6mm_maddr;  /* Multicast address pointer */
 524         LIST_ENTRY(in6_multi_mship) i6mm_chain;  /* multicast options chain */
 525 };
 526
 527 struct  in6_multi {
 528         LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
 529         struct  in6_addr in6m_addr;     /* IP6 multicast address */
 530         struct  ifnet *in6m_ifp;        /* back pointer to ifnet */
 531         struct  ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
 532         u_int   in6m_refcount;          /* # membership claims by sockets */
 533         u_int   in6m_state;             /* state of the membership */
 534         u_int   in6m_timer;             /* MLD6 listener report timer */
 535 };
 536
 537 #ifdef _KERNEL
 538 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
 539
 540 /*
 541  * Structure used by macros below to remember position when stepping through
 542  * all of the in6_multi records.
 543  */
 544 struct  in6_multistep {
 545         struct  in6_ifaddr *i_ia;
 546         struct  in6_multi *i_in6m;
 547 };
 548
 549 /*
 550  * Look up the in6_multi record for a given IP6 multicast address on a given
 551  * interface.  If no matching record is found, NULL is returned.
 552  */
 553 static __inline struct in6_multi *
 554 IN6_LOOKUP_MULTI(const struct in6_addr *_addr, struct ifnet *_ifp)
 555 {
 556         const struct ifmultiaddr *_ifma;
 557         struct in6_multi *_in6m = NULL;
 558
 559         /* TODO: need ifnet_serialize_main */
 560         ifnet_serialize_all(_ifp);
 561         TAILQ_FOREACH(_ifma, &_ifp->if_multiaddrs, ifma_link) {
 562                 if (_ifma->ifma_addr->sa_family == AF_INET6 &&
 563                     IN6_ARE_ADDR_EQUAL(
 564                     &((struct sockaddr_in6 *)_ifma->ifma_addr)->sin6_addr,
 565                     _addr)) {
 566                         _in6m = _ifma->ifma_protospec;
 567                         break;
 568                 }
 569         }
 570         ifnet_deserialize_all(_ifp);
 571
 572         return _in6m;
 573 }
 574
 575 /*
 576  * Macro to step through all of the in6_multi records, one at a time.
 577  * The current position is remembered in "step", which the caller must
 578  * provide.  IN6_FIRST_MULTI(), below, must be called to initialize "step"
 579  * and get the first record.  Both macros return a NULL "in6m" when there
 580  * are no remaining records.
 581  */
 582 #define IN6_NEXT_MULTI(step, in6m)                                      \
 583 /* struct in6_multistep step; */                                        \
 584 /* struct in6_multi *in6m; */                                           \
 585 do { \
 586         if (((in6m) = (step).i_in6m) != NULL) \
 587                 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
 588 } while(0)
 589
 590 #define IN6_FIRST_MULTI(step, in6m)             \
 591 /* struct in6_multistep step; */                \
 592 /* struct in6_multi *in6m */                    \
 593 do { \
 594         (step).i_in6m = in6_multihead.lh_first; \
 595                 IN6_NEXT_MULTI((step), (in6m)); \
 596 } while(0)
 597
 598 struct  in6_multi *in6_addmulti (struct in6_addr *, struct ifnet *, int *);
 599 void    in6_delmulti (struct in6_multi *);
 600 struct  in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *);
 601 int     in6_leavegroup(struct in6_multi_mship *);
 602
 603 int     in6_mask2len(const struct in6_addr *, const u_char *);
 604 void    in6_control_dispatch(netmsg_t msg);
 605 int     in6_control(u_long, caddr_t, struct ifnet *, struct thread *);
 606 int     in6_update_ifa (struct ifnet *, struct in6_aliasreq *,
 607                         struct in6_ifaddr *);
 608 void    in6_purgeaddr (struct ifaddr *);
 609 int     in6if_do_dad (struct ifnet *);
 610 void    in6_purgeif (struct ifnet *);
 611 void    in6_savemkludge (struct in6_ifaddr *);
 612 void    *in6_domifattach (struct ifnet *);
 613 void    in6_domifdetach (struct ifnet *, void *);
 614 void    in6_setmaxmtu   (void);
 615 void    in6_restoremkludge (struct in6_ifaddr *, struct ifnet *);
 616 void    in6_purgemkludge (struct ifnet *);
 617 struct in6_ifaddr *in6ifa_ifpforlinklocal (struct ifnet *, int);
 618 struct in6_ifaddr *in6ifa_ifpwithaddr (struct ifnet *, struct in6_addr *);
 619 struct in6_ifaddr *in6ifa_ifplocaladdr(const struct ifnet *,
 620                                         const struct in6_addr *);
 621 struct in6_ifaddr *in6ifa_llaonifp(struct ifnet *);
 622 char    *ip6_sprintf (const struct in6_addr *);
 623 int     in6_addr2zoneid(struct ifnet *, struct in6_addr *, u_int32_t *);
 624 int     in6_matchlen (struct in6_addr *, struct in6_addr *);
 625 int     in6_are_prefix_equal(struct in6_addr *p1, struct in6_addr *p2, int len);
 626 void    in6_prefixlen2mask(struct in6_addr *maskp, int len);
 627 void    in6_ifremloop(struct ifaddr *);
 628 void    in6_ifaddloop(struct ifaddr *);
 629
 630 int     in6_is_addr_deprecated (struct sockaddr_in6 *);
 631 struct inpcb;
 632 int in6_embedscope (struct in6_addr *, const struct sockaddr_in6 *,
 633         struct inpcb *, struct ifnet **);
 634 int in6_recoverscope (struct sockaddr_in6 *, const struct in6_addr *,
 635         struct ifnet *);
 636 void in6_clearscope (struct in6_addr *);
 637 int in6_src_ioctl (u_long, caddr_t);
 638 #endif /* _KERNEL */
 639
 640 #endif /* _NETINET6_IN6_VAR_H_ */