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