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. All advertising materials mentioning features or use of this software
  47  *    must display the following acknowledgement:
  48  *      This product includes software developed by the University of
  49  *      California, Berkeley and its contributors.
  50  * 4. Neither the name of the University nor the names of its contributors
  51  *    may be used to endorse or promote products derived from this software
  52  *    without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  55  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  56  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  57  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  58  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  59  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  60  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  61  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  62  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  63  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  64  * SUCH DAMAGE.
  65  *
  66  *      @(#)in_var.h    8.1 (Berkeley) 6/10/93
  67  */
  68
  69 #ifndef _NETINET6_IN6_VAR_H_
  70 #define _NETINET6_IN6_VAR_H_
  71
  72 #ifndef _SYS_TYPES_H_
  73 #include <sys/types.h>
  74 #endif
  75 #ifndef _SYS_IOCCOM_H_
  76 #include <sys/ioccom.h>
  77 #endif
  78 #ifndef _SYS_TIME_H_
  79 #include <sys/time.h>
  80 #endif
  81 #ifndef _NET_IF_VAR_H_
  82 #include <net/if_var.h>
  83 #endif
  84 #ifndef _NETINET_IN_H_
  85 #include <netinet/in.h>
  86 #endif
  87
  88 /*
  89  * Interface address, Internet version.  One of these structures
  90  * is allocated for each interface with an Internet address.
  91  * The ifaddr structure contains the protocol-independent part
  92  * of the structure and is assumed to be first.
  93  */
  94
  95 /*
  96  * pltime/vltime are just for future reference (required to implements 2
  97  * hour rule for hosts).  they should never be modified by nd6_timeout or
  98  * anywhere else.
  99  *      userland -> kernel: accept pltime/vltime
 100  *      kernel -> userland: throw up everything
 101  *      in kernel: modify preferred/expire only
 102  */
 103 struct in6_addrlifetime {
 104         time_t ia6t_expire;     /* valid lifetime expiration time */
 105         time_t ia6t_preferred;  /* preferred lifetime expiration time */
 106         u_int32_t ia6t_vltime;  /* valid lifetime */
 107         u_int32_t ia6t_pltime;  /* prefix lifetime */
 108 };
 109
 110 struct nd_ifinfo;
 111 struct scope6_id;
 112
 113 struct in6_ifextra {
 114         struct in6_ifstat *in6_ifstat;
 115         struct icmp6_ifstat *icmp6_ifstat;
 116         struct nd_ifinfo *nd_ifinfo;
 117         struct scope6_id *scope6_id;
 118 };
 119
 120 struct  in6_ifaddr {
 121         struct  ifaddr ia_ifa;          /* protocol-independent info */
 122 #define ia_ifp          ia_ifa.ifa_ifp
 123 #define ia_flags        ia_ifa.ifa_flags
 124         struct  sockaddr_in6 ia_addr;   /* interface address */
 125         struct  sockaddr_in6 ia_net;    /* network number of interface */
 126         struct  sockaddr_in6 ia_dstaddr; /* space for destination addr */
 127         struct  sockaddr_in6 ia_prefixmask; /* prefix mask */
 128         u_int32_t ia_plen;              /* prefix length */
 129         struct  in6_ifaddr *ia_next;    /* next in6 list of IP6 addresses */
 130         int     ia6_flags;
 131
 132         struct in6_addrlifetime ia6_lifetime;
 133         struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */
 134
 135         struct nd_prefix *ia6_ndpr; /* back pointer to the ND prefix
 136                                      * (for autoconfigured addresses only)
 137                                      */
 138 };
 139
 140 /* control structure to manage address selection policy */
 141 struct in6_addrpolicy {
 142         struct sockaddr_in6 addr; /* prefix address */
 143         struct sockaddr_in6 addrmask; /* prefix mask */
 144         int preced;             /* precedence */
 145         int label;              /* matching label */
 146         u_quad_t use;           /* statistics */
 147 };
 148
 149 /*
 150  * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
 151  */
 152 struct in6_ifstat {
 153         u_quad_t ifs6_in_receive;       /* # of total input datagram */
 154         u_quad_t ifs6_in_hdrerr;        /* # of datagrams with invalid hdr */
 155         u_quad_t ifs6_in_toobig;        /* # of datagrams exceeded MTU */
 156         u_quad_t ifs6_in_noroute;       /* # of datagrams with no route */
 157         u_quad_t ifs6_in_addrerr;       /* # of datagrams with invalid dst */
 158         u_quad_t ifs6_in_protounknown;  /* # of datagrams with unknown proto */
 159                                         /* NOTE: increment on final dst if */
 160         u_quad_t ifs6_in_truncated;     /* # of truncated datagrams */
 161         u_quad_t ifs6_in_discard;       /* # of discarded datagrams */
 162                                         /* NOTE: fragment timeout is not here */
 163         u_quad_t ifs6_in_deliver;       /* # of datagrams delivered to ULP */
 164                                         /* NOTE: increment on final dst if */
 165         u_quad_t ifs6_out_forward;      /* # of datagrams forwarded */
 166                                         /* NOTE: increment on outgoing if */
 167         u_quad_t ifs6_out_request;      /* # of outgoing datagrams from ULP */
 168                                         /* NOTE: does not include forwrads */
 169         u_quad_t ifs6_out_discard;      /* # of discarded datagrams */
 170         u_quad_t ifs6_out_fragok;       /* # of datagrams fragmented */
 171         u_quad_t ifs6_out_fragfail;     /* # of datagrams failed on fragment */
 172         u_quad_t ifs6_out_fragcreat;    /* # of fragment datagrams */
 173                                         /* NOTE: this is # after fragment */
 174         u_quad_t ifs6_reass_reqd;       /* # of incoming fragmented packets */
 175                                         /* NOTE: increment on final dst if */
 176         u_quad_t ifs6_reass_ok;         /* # of reassembled packets */
 177                                         /* NOTE: this is # after reass */
 178                                         /* NOTE: increment on final dst if */
 179         u_quad_t ifs6_reass_fail;       /* # of reass failures */
 180                                         /* NOTE: may not be packet count */
 181                                         /* NOTE: increment on final dst if */
 182         u_quad_t ifs6_in_mcast;         /* # of inbound multicast datagrams */
 183         u_quad_t ifs6_out_mcast;        /* # of outbound multicast datagrams */
 184 };
 185
 186 /*
 187  * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
 188  * XXX: I'm not sure if this file is the right place for this structure...
 189  */
 190 struct icmp6_ifstat {
 191         /*
 192          * Input statistics
 193          */
 194         /* ipv6IfIcmpInMsgs, total # of input messages */
 195         u_quad_t ifs6_in_msg;
 196         /* ipv6IfIcmpInErrors, # of input error messages */
 197         u_quad_t ifs6_in_error;
 198         /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
 199         u_quad_t ifs6_in_dstunreach;
 200         /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
 201         u_quad_t ifs6_in_adminprohib;
 202         /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
 203         u_quad_t ifs6_in_timeexceed;
 204         /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
 205         u_quad_t ifs6_in_paramprob;
 206         /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
 207         u_quad_t ifs6_in_pkttoobig;
 208         /* ipv6IfIcmpInEchos, # of input echo requests */
 209         u_quad_t ifs6_in_echo;
 210         /* ipv6IfIcmpInEchoReplies, # of input echo replies */
 211         u_quad_t ifs6_in_echoreply;
 212         /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
 213         u_quad_t ifs6_in_routersolicit;
 214         /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
 215         u_quad_t ifs6_in_routeradvert;
 216         /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
 217         u_quad_t ifs6_in_neighborsolicit;
 218         /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
 219         u_quad_t ifs6_in_neighboradvert;
 220         /* ipv6IfIcmpInRedirects, # of input redirects */
 221         u_quad_t ifs6_in_redirect;
 222         /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
 223         u_quad_t ifs6_in_mldquery;
 224         /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
 225         u_quad_t ifs6_in_mldreport;
 226         /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
 227         u_quad_t ifs6_in_mlddone;
 228
 229         /*
 230          * Output statistics. We should solve unresolved routing problem...
 231          */
 232         /* ipv6IfIcmpOutMsgs, total # of output messages */
 233         u_quad_t ifs6_out_msg;
 234         /* ipv6IfIcmpOutErrors, # of output error messages */
 235         u_quad_t ifs6_out_error;
 236         /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
 237         u_quad_t ifs6_out_dstunreach;
 238         /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
 239         u_quad_t ifs6_out_adminprohib;
 240         /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
 241         u_quad_t ifs6_out_timeexceed;
 242         /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
 243         u_quad_t ifs6_out_paramprob;
 244         /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
 245         u_quad_t ifs6_out_pkttoobig;
 246         /* ipv6IfIcmpOutEchos, # of output echo requests */
 247         u_quad_t ifs6_out_echo;
 248         /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
 249         u_quad_t ifs6_out_echoreply;
 250         /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
 251         u_quad_t ifs6_out_routersolicit;
 252         /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
 253         u_quad_t ifs6_out_routeradvert;
 254         /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
 255         u_quad_t ifs6_out_neighborsolicit;
 256         /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
 257         u_quad_t ifs6_out_neighboradvert;
 258         /* ipv6IfIcmpOutRedirects, # of output redirects */
 259         u_quad_t ifs6_out_redirect;
 260         /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
 261         u_quad_t ifs6_out_mldquery;
 262         /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
 263         u_quad_t ifs6_out_mldreport;
 264         /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
 265         u_quad_t ifs6_out_mlddone;
 266 };
 267
 268 struct  in6_ifreq {
 269         char    ifr_name[IFNAMSIZ];
 270         union {
 271                 struct  sockaddr_in6 ifru_addr;
 272                 struct  sockaddr_in6 ifru_dstaddr;
 273                 short   ifru_flags;
 274                 int     ifru_flags6;
 275                 int     ifru_metric;
 276                 caddr_t ifru_data;
 277                 struct in6_addrlifetime ifru_lifetime;
 278                 struct in6_ifstat ifru_stat;
 279                 struct icmp6_ifstat ifru_icmp6stat;
 280                 u_int32_t ifru_scope_id[16];
 281         } ifr_ifru;
 282 };
 283
 284 struct  in6_aliasreq {
 285         char    ifra_name[IFNAMSIZ];
 286         struct  sockaddr_in6 ifra_addr;
 287         struct  sockaddr_in6 ifra_dstaddr;
 288         struct  sockaddr_in6 ifra_prefixmask;
 289         int     ifra_flags;
 290         struct in6_addrlifetime ifra_lifetime;
 291 };
 292
 293 /* prefix type macro */
 294 #define IN6_PREFIX_ND   1
 295 #define IN6_PREFIX_RR   2
 296
 297 /*
 298  * prefix related flags passed between kernel(NDP related part) and
 299  * user land command(ifconfig) and daemon(rtadvd).
 300  */
 301 struct in6_prflags {
 302         struct prf_ra {
 303                 u_char onlink : 1;
 304                 u_char autonomous : 1;
 305                 u_char reserved : 6;
 306         } prf_ra;
 307         u_char prf_reserved1;
 308         u_short prf_reserved2;
 309         /* want to put this on 4byte offset */
 310         struct prf_rr {
 311                 u_char decrvalid : 1;
 312                 u_char decrprefd : 1;
 313                 u_char reserved : 6;
 314         } prf_rr;
 315         u_char prf_reserved3;
 316         u_short prf_reserved4;
 317 };
 318
 319 struct  in6_prefixreq {
 320         char    ipr_name[IFNAMSIZ];
 321         u_char  ipr_origin;
 322         u_char  ipr_plen;
 323         u_int32_t ipr_vltime;
 324         u_int32_t ipr_pltime;
 325         struct in6_prflags ipr_flags;
 326         struct  sockaddr_in6 ipr_prefix;
 327 };
 328
 329 #define PR_ORIG_RA      0
 330 #define PR_ORIG_RR      1
 331 #define PR_ORIG_STATIC  2
 332 #define PR_ORIG_KERNEL  3
 333
 334 #define ipr_raf_onlink          ipr_flags.prf_ra.onlink
 335 #define ipr_raf_auto            ipr_flags.prf_ra.autonomous
 336
 337 #define ipr_statef_onlink       ipr_flags.prf_state.onlink
 338
 339 #define ipr_rrf_decrvalid       ipr_flags.prf_rr.decrvalid
 340 #define ipr_rrf_decrprefd       ipr_flags.prf_rr.decrprefd
 341
 342 struct  in6_rrenumreq {
 343         char    irr_name[IFNAMSIZ];
 344         u_char  irr_origin;
 345         u_char  irr_m_len;      /* match len for matchprefix */
 346         u_char  irr_m_minlen;   /* minlen for matching prefix */
 347         u_char  irr_m_maxlen;   /* maxlen for matching prefix */
 348         u_char  irr_u_uselen;   /* uselen for adding prefix */
 349         u_char  irr_u_keeplen;  /* keeplen from matching prefix */
 350         struct irr_raflagmask {
 351                 u_char onlink : 1;
 352                 u_char autonomous : 1;
 353                 u_char reserved : 6;
 354         } irr_raflagmask;
 355         u_int32_t irr_vltime;
 356         u_int32_t irr_pltime;
 357         struct in6_prflags irr_flags;
 358         struct  sockaddr_in6 irr_matchprefix;
 359         struct  sockaddr_in6 irr_useprefix;
 360 };
 361
 362 #define irr_raf_mask_onlink     irr_raflagmask.onlink
 363 #define irr_raf_mask_auto       irr_raflagmask.autonomous
 364 #define irr_raf_mask_reserved   irr_raflagmask.reserved
 365
 366 #define irr_raf_onlink          irr_flags.prf_ra.onlink
 367 #define irr_raf_auto            irr_flags.prf_ra.autonomous
 368
 369 #define irr_statef_onlink       irr_flags.prf_state.onlink
 370
 371 #define irr_rrf                 irr_flags.prf_rr
 372 #define irr_rrf_decrvalid       irr_flags.prf_rr.decrvalid
 373 #define irr_rrf_decrprefd       irr_flags.prf_rr.decrprefd
 374
 375 /*
 376  * Given a pointer to an in6_ifaddr (ifaddr),
 377  * return a pointer to the addr as a sockaddr_in6
 378  */
 379 #define IA6_IN6(ia)     (&((ia)->ia_addr.sin6_addr))
 380 #define IA6_DSTIN6(ia)  (&((ia)->ia_dstaddr.sin6_addr))
 381 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
 382 #define IA6_SIN6(ia)    (&((ia)->ia_addr))
 383 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
 384 #define IFA_IN6(x)      (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
 385 #define IFA_DSTIN6(x)   (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
 386
 387 #define IFPR_IN6(x)     (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr)
 388
 389 #ifdef _KERNEL
 390 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m)      (       \
 391         (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
 392         (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
 393         (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
 394         (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
 395 #endif
 396
 397 #define SIOCSIFADDR_IN6          _IOW('i', 12, struct in6_ifreq)
 398 #define SIOCGIFADDR_IN6         _IOWR('i', 33, struct in6_ifreq)
 399
 400 #ifdef _KERNEL
 401 /*
 402  * SIOCSxxx ioctls should be unused (see comments in in6.c), but
 403  * we do not shift numbers for binary compatibility.
 404  */
 405 #define SIOCSIFDSTADDR_IN6       _IOW('i', 14, struct in6_ifreq)
 406 #define SIOCSIFNETMASK_IN6       _IOW('i', 22, struct in6_ifreq)
 407 #endif
 408
 409 #define SIOCGIFDSTADDR_IN6      _IOWR('i', 34, struct in6_ifreq)
 410 #define SIOCGIFNETMASK_IN6      _IOWR('i', 37, struct in6_ifreq)
 411
 412 #define SIOCDIFADDR_IN6          _IOW('i', 25, struct in6_ifreq)
 413 #define SIOCAIFADDR_IN6          _IOW('i', 26, struct in6_aliasreq)
 414
 415 #define SIOCSIFPHYADDR_IN6       _IOW('i', 70, struct in6_aliasreq)
 416 #define SIOCGIFPSRCADDR_IN6     _IOWR('i', 71, struct in6_ifreq)
 417 #define SIOCGIFPDSTADDR_IN6     _IOWR('i', 72, struct in6_ifreq)
 418
 419 #define SIOCGIFAFLAG_IN6        _IOWR('i', 73, struct in6_ifreq)
 420
 421 #define SIOCGDRLST_IN6          _IOWR('i', 74, struct in6_drlist)
 422 #define SIOCGPRLST_IN6          _IOWR('i', 75, struct in6_prlist)
 423 #ifdef _KERNEL
 424 #define OSIOCGIFINFO_IN6        _IOWR('i', 76, struct in6_ondireq)
 425 #endif
 426 #define SIOCGIFINFO_IN6         _IOWR('i', 108, struct in6_ndireq)
 427 #define SIOCSNDFLUSH_IN6        _IOWR('i', 77, struct in6_ifreq)
 428 #define SIOCGNBRINFO_IN6        _IOWR('i', 78, struct in6_nbrinfo)
 429 #define SIOCSPFXFLUSH_IN6       _IOWR('i', 79, struct in6_ifreq)
 430 #define SIOCSRTRFLUSH_IN6       _IOWR('i', 80, struct in6_ifreq)
 431
 432 #define SIOCGIFALIFETIME_IN6    _IOWR('i', 81, struct in6_ifreq)
 433 #define SIOCSIFALIFETIME_IN6    _IOWR('i', 82, struct in6_ifreq)
 434 #define SIOCGIFSTAT_IN6         _IOWR('i', 83, struct in6_ifreq)
 435 #define SIOCGIFSTAT_ICMP6       _IOWR('i', 84, struct in6_ifreq)
 436
 437 #define SIOCSDEFIFACE_IN6       _IOWR('i', 85, struct in6_ndifreq)
 438 #define SIOCGDEFIFACE_IN6       _IOWR('i', 86, struct in6_ndifreq)
 439
 440 #define SIOCSIFINFO_FLAGS       _IOWR('i', 87, struct in6_ndireq) /* XXX */
 441
 442 #define SIOCSSCOPE6             _IOW('i', 88, struct in6_ifreq)
 443 #define SIOCGSCOPE6             _IOWR('i', 89, struct in6_ifreq)
 444 #define SIOCGSCOPE6DEF          _IOWR('i', 90, struct in6_ifreq)
 445
 446 #define SIOCSIFPREFIX_IN6       _IOW('i', 100, struct in6_prefixreq) /* set */
 447 #define SIOCGIFPREFIX_IN6       _IOWR('i', 101, struct in6_prefixreq) /* get */
 448 #define SIOCDIFPREFIX_IN6       _IOW('i', 102, struct in6_prefixreq) /* del */
 449 #define SIOCAIFPREFIX_IN6       _IOW('i', 103, struct in6_rrenumreq) /* add */
 450 #define SIOCCIFPREFIX_IN6       _IOW('i', 104, \
 451                                      struct in6_rrenumreq) /* change */
 452 #define SIOCSGIFPREFIX_IN6      _IOW('i', 105, \
 453                                      struct in6_rrenumreq) /* set global */
 454
 455 #define SIOCGETSGCNT_IN6        _IOWR('u', 106, \
 456                                       struct sioc_sg_req6) /* get s,g pkt cnt */
 457 #define SIOCGETMIFCNT_IN6       _IOWR('u', 107, \
 458                                       struct sioc_mif_req6) /* get pkt cnt per if */
 459
 460 #define SIOCAADDRCTL_POLICY     _IOW('u', 108, struct in6_addrpolicy)
 461 #define SIOCDADDRCTL_POLICY     _IOW('u', 109, struct in6_addrpolicy)
 462
 463 #define IN6_IFF_ANYCAST         0x01    /* anycast address */
 464 #define IN6_IFF_TENTATIVE       0x02    /* tentative address */
 465 #define IN6_IFF_DUPLICATED      0x04    /* DAD detected duplicate */
 466 #define IN6_IFF_DETACHED        0x08    /* may be detached from the link */
 467 #define IN6_IFF_DEPRECATED      0x10    /* deprecated address */
 468 #define IN6_IFF_NODAD           0x20    /* don't perform DAD on this address
 469                                          * (used only at first SIOC* call)
 470                                          */
 471 #define IN6_IFF_AUTOCONF        0x40    /* autoconfigurable address. */
 472 #define IN6_IFF_TEMPORARY       0x80    /* temporary (anonymous) address. */
 473 #define IN6_IFF_NOPFX           0x8000  /* skip kernel prefix management.
 474                                          * XXX: this should be temporary.
 475                                          */
 476
 477 /* do not input/output */
 478 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
 479
 480 #ifdef _KERNEL
 481 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
 482 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
 483 #endif
 484
 485 #ifdef _KERNEL
 486 extern struct in6_ifaddr *in6_ifaddr;
 487
 488 extern struct icmp6stat icmp6stat;
 489 #define in6_ifstat_inc(ifp, tag) \
 490 do {                                                            \
 491         if (ifp)                                                \
 492                 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
 493 } while (0)
 494
 495 extern struct ifqueue ip6intrq;         /* IP6 packet input queue */
 496 extern struct in6_addr zeroin6_addr;
 497 extern u_char inet6ctlerrmap[];
 498 extern unsigned long in6_maxmtu;
 499 #ifdef MALLOC_DECLARE
 500 MALLOC_DECLARE(M_IPMADDR);
 501 #endif
 502
 503 /*
 504  * Macro for finding the internet address structure (in6_ifaddr) corresponding
 505  * to a given interface (ifnet structure).
 506  */
 507
 508 #define IFP_TO_IA6(ifp, ia)                             \
 509 /* struct ifnet *ifp; */                                \
 510 /* struct in6_ifaddr *ia; */                            \
 511 do {                                                                    \
 512         struct ifaddr_container *ifac;                                  \
 513         TAILQ_FOREACH(ifac, &(ifp)->if_addrheads[mycpuid], ifa_list) {  \
 514                 if (!ifac->ifa->ifa_addr)                               \
 515                         continue;                                       \
 516                 if (ifac->ifa->ifa_addr->sa_family == AF_INET6)         \
 517                         break;                                          \
 518         }                                                               \
 519         (ia) = ifac == NULL ? NULL : (struct in6_ifaddr *)(ifac->ifa);  \
 520 } while (0)
 521
 522 #endif /* _KERNEL */
 523
 524 /*
 525  * Multi-cast membership entry.  One for each group/ifp that a PCB
 526  * belongs to.
 527  */
 528 struct in6_multi_mship {
 529         struct  in6_multi *i6mm_maddr;  /* Multicast address pointer */
 530         LIST_ENTRY(in6_multi_mship) i6mm_chain;  /* multicast options chain */
 531 };
 532
 533 struct  in6_multi {
 534         LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
 535         struct  in6_addr in6m_addr;     /* IP6 multicast address */
 536         struct  ifnet *in6m_ifp;        /* back pointer to ifnet */
 537         struct  ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */
 538         u_int   in6m_refcount;          /* # membership claims by sockets */
 539         u_int   in6m_state;             /* state of the membership */
 540         u_int   in6m_timer;             /* MLD6 listener report timer */
 541 };
 542
 543 #ifdef _KERNEL
 544 extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead;
 545
 546 /*
 547  * Structure used by macros below to remember position when stepping through
 548  * all of the in6_multi records.
 549  */
 550 struct  in6_multistep {
 551         struct  in6_ifaddr *i_ia;
 552         struct  in6_multi *i_in6m;
 553 };
 554
 555 /*
 556  * Macros for looking up the in6_multi record for a given IP6 multicast
 557  * address on a given interface. If no matching record is found, "in6m"
 558  * returns NLL.
 559  */
 560
 561 #define IN6_LOOKUP_MULTI(addr, ifp, in6m)                       \
 562 /* struct in6_addr addr; */                                     \
 563 /* struct ifnet *ifp; */                                        \
 564 /* struct in6_multi *in6m; */                                   \
 565 do { \
 566         struct ifmultiaddr *ifma; \
 567         for (ifma = (ifp)->if_multiaddrs.lh_first; ifma; \
 568              ifma = ifma->ifma_link.le_next) { \
 569                 if (ifma->ifma_addr->sa_family == AF_INET6 \
 570                     && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \
 571                                           &(addr))) \
 572                         break; \
 573         } \
 574         (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \
 575 } while(0)
 576
 577 /*
 578  * Macro to step through all of the in6_multi records, one at a time.
 579  * The current position is remembered in "step", which the caller must
 580  * provide.  IN6_FIRST_MULTI(), below, must be called to initialize "step"
 581  * and get the first record.  Both macros return a NULL "in6m" when there
 582  * are no remaining records.
 583  */
 584 #define IN6_NEXT_MULTI(step, in6m)                                      \
 585 /* struct in6_multistep step; */                                        \
 586 /* struct in6_multi *in6m; */                                           \
 587 do { \
 588         if (((in6m) = (step).i_in6m) != NULL) \
 589                 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \
 590 } while(0)
 591
 592 #define IN6_FIRST_MULTI(step, in6m)             \
 593 /* struct in6_multistep step; */                \
 594 /* struct in6_multi *in6m */                    \
 595 do { \
 596         (step).i_in6m = in6_multihead.lh_first; \
 597                 IN6_NEXT_MULTI((step), (in6m)); \
 598 } while(0)
 599
 600 struct  in6_multi *in6_addmulti (struct in6_addr *, struct ifnet *,
 601                                      int *);
 602 void    in6_delmulti (struct in6_multi *);
 603 struct  in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *);
 604 int     in6_leavegroup(struct in6_multi_mship *);
 605
 606 extern int in6_ifindex2scopeid (int);
 607 extern int in6_mask2len (struct in6_addr *, u_char *);
 608 extern void in6_len2mask (struct in6_addr *, int);
 609 int     in6_control (struct socket *,
 610                          u_long, caddr_t, struct ifnet *, struct thread *);
 611 int     in6_update_ifa (struct ifnet *, struct in6_aliasreq *,
 612                             struct in6_ifaddr *);
 613 void    in6_purgeaddr (struct ifaddr *);
 614 int     in6if_do_dad (struct ifnet *);
 615 void    in6_purgeif (struct ifnet *);
 616 void    in6_savemkludge (struct in6_ifaddr *);
 617 void    *in6_domifattach (struct ifnet *);
 618 void    in6_domifdetach (struct ifnet *, void *);
 619 void    in6_setmaxmtu   (void);
 620 void    in6_restoremkludge (struct in6_ifaddr *, struct ifnet *);
 621 void    in6_purgemkludge (struct ifnet *);
 622 struct in6_ifaddr *in6ifa_ifpforlinklocal (struct ifnet *, int);
 623 struct in6_ifaddr *in6ifa_ifpwithaddr (struct ifnet *,
 624                                              struct in6_addr *);
 625 struct in6_ifaddr *in6ifa_ifplocaladdr(const struct ifnet *,
 626                                         const struct in6_addr *);
 627 char    *ip6_sprintf (const struct in6_addr *);
 628 int     in6_addr2scopeid (struct ifnet *, struct in6_addr *);
 629 int     in6_matchlen (struct in6_addr *, struct in6_addr *);
 630 int     in6_are_prefix_equal (struct in6_addr *p1, struct in6_addr *p2,
 631                                   int len);
 632 void    in6_prefixlen2mask (struct in6_addr *maskp, int len);
 633 int     in6_prefix_ioctl (struct socket *so, u_long cmd, caddr_t data,
 634                               struct ifnet *ifp);
 635 int     in6_prefix_add_ifid (int iilen, struct in6_ifaddr *ia);
 636 void    in6_prefix_remove_ifid (int iilen, struct in6_ifaddr *ia);
 637 void    in6_purgeprefix (struct ifnet *);
 638 void    in6_ifremloop(struct ifaddr *);
 639 void    in6_ifaddloop(struct ifaddr *);
 640
 641 int     in6_is_addr_deprecated (struct sockaddr_in6 *);
 642 struct inpcb;
 643 int in6_embedscope (struct in6_addr *, const struct sockaddr_in6 *,
 644         struct inpcb *, struct ifnet **);
 645 int in6_recoverscope (struct sockaddr_in6 *, const struct in6_addr *,
 646         struct ifnet *);
 647 void in6_clearscope (struct in6_addr *);
 648 int in6_src_ioctl (u_long, caddr_t);
 649 #endif /* _KERNEL */
 650
 651 #endif /* _NETINET6_IN6_VAR_H_ */