The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netinet6/in6_var.h

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    1 /*      $NetBSD: in6_var.h,v 1.36 2003/10/15 01:28:28 itojun Exp $      */
    2 /*      $KAME: in6_var.h,v 1.81 2002/06/08 11:16:51 itojun Exp $        */
    3 
    4 /*
    5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. Neither the name of the project nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  */
   32 
   33 /*
   34  * Copyright (c) 1985, 1986, 1993
   35  *      The Regents of the University of California.  All rights reserved.
   36  *
   37  * Redistribution and use in source and binary forms, with or without
   38  * modification, are permitted provided that the following conditions
   39  * are met:
   40  * 1. Redistributions of source code must retain the above copyright
   41  *    notice, this list of conditions and the following disclaimer.
   42  * 2. Redistributions in binary form must reproduce the above copyright
   43  *    notice, this list of conditions and the following disclaimer in the
   44  *    documentation and/or other materials provided with the distribution.
   45  * 3. Neither the name of the University nor the names of its contributors
   46  *    may be used to endorse or promote products derived from this software
   47  *    without specific prior written permission.
   48  *
   49  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   52  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   59  * SUCH DAMAGE.
   60  *
   61  *      @(#)in_var.h    8.1 (Berkeley) 6/10/93
   62  */
   63 
   64 #ifndef _NETINET6_IN6_VAR_H_
   65 #define _NETINET6_IN6_VAR_H_
   66 
   67 /*
   68  * Interface address, Internet version.  One of these structures
   69  * is allocated for each interface with an Internet address.
   70  * The ifaddr structure contains the protocol-independent part
   71  * of the structure and is assumed to be first.
   72  */
   73 
   74 /*
   75  * pltime/vltime are just for future reference (required to implements 2
   76  * hour rule for hosts).  they should never be modified by nd6_timeout or
   77  * anywhere else.
   78  *      userland -> kernel: accept pltime/vltime
   79  *      kernel -> userland: throw up everything
   80  *      in kernel: modify preferred/expire only
   81  */
   82 struct in6_addrlifetime {
   83         time_t ia6t_expire;     /* valid lifetime expiration time */
   84         time_t ia6t_preferred;  /* preferred lifetime expiration time */
   85         u_int32_t ia6t_vltime;  /* valid lifetime */
   86         u_int32_t ia6t_pltime;  /* prefix lifetime */
   87 };
   88 
   89 struct nd_ifinfo;
   90 struct in6_ifextra {
   91         struct in6_ifstat *in6_ifstat;
   92         struct icmp6_ifstat *icmp6_ifstat;
   93         struct nd_ifinfo *nd_ifinfo;
   94 };
   95 
   96 struct  in6_ifaddr {
   97         struct  ifaddr ia_ifa;          /* protocol-independent info */
   98 #define ia_ifp          ia_ifa.ifa_ifp
   99 #define ia_flags        ia_ifa.ifa_flags
  100         struct  sockaddr_in6 ia_addr;   /* interface address */
  101         struct  sockaddr_in6 ia_net;    /* network number of interface */
  102         struct  sockaddr_in6 ia_dstaddr; /* space for destination addr */
  103         struct  sockaddr_in6 ia_prefixmask; /* prefix mask */
  104         u_int32_t ia_plen;              /* prefix length */
  105         struct  in6_ifaddr *ia_next;    /* next in6 list of IP6 addresses */
  106         LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs;
  107                                         /* list of multicast addresses */
  108         int     ia6_flags;
  109 
  110         struct in6_addrlifetime ia6_lifetime;
  111         time_t  ia6_createtime; /* the creation time of this address, which is
  112                                  * currently used for temporary addresses only.
  113                                  */
  114         time_t  ia6_updatetime;
  115 
  116         /* back pointer to the ND prefix (for autoconfigured addresses only) */
  117         struct nd_prefix *ia6_ndpr;
  118 
  119         /* multicast addresses joined from the kernel */
  120         LIST_HEAD(, in6_multi_mship) ia6_memberships;
  121 };
  122 
  123 /*
  124  * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
  125  */
  126 struct in6_ifstat {
  127         u_quad_t ifs6_in_receive;       /* # of total input datagram */
  128         u_quad_t ifs6_in_hdrerr;        /* # of datagrams with invalid hdr */
  129         u_quad_t ifs6_in_toobig;        /* # of datagrams exceeded MTU */
  130         u_quad_t ifs6_in_noroute;       /* # of datagrams with no route */
  131         u_quad_t ifs6_in_addrerr;       /* # of datagrams with invalid dst */
  132         u_quad_t ifs6_in_protounknown;  /* # of datagrams with unknown proto */
  133                                         /* NOTE: increment on final dst if */
  134         u_quad_t ifs6_in_truncated;     /* # of truncated datagrams */
  135         u_quad_t ifs6_in_discard;       /* # of discarded datagrams */
  136                                         /* NOTE: fragment timeout is not here */
  137         u_quad_t ifs6_in_deliver;       /* # of datagrams delivered to ULP */
  138                                         /* NOTE: increment on final dst if */
  139         u_quad_t ifs6_out_forward;      /* # of datagrams forwarded */
  140                                         /* NOTE: increment on outgoing if */
  141         u_quad_t ifs6_out_request;      /* # of outgoing datagrams from ULP */
  142                                         /* NOTE: does not include forwrads */
  143         u_quad_t ifs6_out_discard;      /* # of discarded datagrams */
  144         u_quad_t ifs6_out_fragok;       /* # of datagrams fragmented */
  145         u_quad_t ifs6_out_fragfail;     /* # of datagrams failed on fragment */
  146         u_quad_t ifs6_out_fragcreat;    /* # of fragment datagrams */
  147                                         /* NOTE: this is # after fragment */
  148         u_quad_t ifs6_reass_reqd;       /* # of incoming fragmented packets */
  149                                         /* NOTE: increment on final dst if */
  150         u_quad_t ifs6_reass_ok;         /* # of reassembled packets */
  151                                         /* NOTE: this is # after reass */
  152                                         /* NOTE: increment on final dst if */
  153         u_quad_t ifs6_reass_fail;       /* # of reass failures */
  154                                         /* NOTE: may not be packet count */
  155                                         /* NOTE: increment on final dst if */
  156         u_quad_t ifs6_in_mcast;         /* # of inbound multicast datagrams */
  157         u_quad_t ifs6_out_mcast;        /* # of outbound multicast datagrams */
  158 };
  159 
  160 /*
  161  * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
  162  * XXX: I'm not sure if this file is the right place for this structure...
  163  */
  164 struct icmp6_ifstat {
  165         /*
  166          * Input statistics
  167          */
  168         /* ipv6IfIcmpInMsgs, total # of input messages */
  169         u_quad_t ifs6_in_msg;
  170         /* ipv6IfIcmpInErrors, # of input error messages */
  171         u_quad_t ifs6_in_error;
  172         /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
  173         u_quad_t ifs6_in_dstunreach;
  174         /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
  175         u_quad_t ifs6_in_adminprohib;
  176         /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
  177         u_quad_t ifs6_in_timeexceed;
  178         /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
  179         u_quad_t ifs6_in_paramprob;
  180         /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
  181         u_quad_t ifs6_in_pkttoobig;
  182         /* ipv6IfIcmpInEchos, # of input echo requests */
  183         u_quad_t ifs6_in_echo;
  184         /* ipv6IfIcmpInEchoReplies, # of input echo replies */
  185         u_quad_t ifs6_in_echoreply;
  186         /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
  187         u_quad_t ifs6_in_routersolicit;
  188         /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
  189         u_quad_t ifs6_in_routeradvert;
  190         /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
  191         u_quad_t ifs6_in_neighborsolicit;
  192         /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
  193         u_quad_t ifs6_in_neighboradvert;
  194         /* ipv6IfIcmpInRedirects, # of input redirects */
  195         u_quad_t ifs6_in_redirect;
  196         /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
  197         u_quad_t ifs6_in_mldquery;
  198         /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
  199         u_quad_t ifs6_in_mldreport;
  200         /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
  201         u_quad_t ifs6_in_mlddone;
  202 
  203         /*
  204          * Output statistics. We should solve unresolved routing problem...
  205          */
  206         /* ipv6IfIcmpOutMsgs, total # of output messages */
  207         u_quad_t ifs6_out_msg;
  208         /* ipv6IfIcmpOutErrors, # of output error messages */
  209         u_quad_t ifs6_out_error;
  210         /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
  211         u_quad_t ifs6_out_dstunreach;
  212         /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
  213         u_quad_t ifs6_out_adminprohib;
  214         /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
  215         u_quad_t ifs6_out_timeexceed;
  216         /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
  217         u_quad_t ifs6_out_paramprob;
  218         /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
  219         u_quad_t ifs6_out_pkttoobig;
  220         /* ipv6IfIcmpOutEchos, # of output echo requests */
  221         u_quad_t ifs6_out_echo;
  222         /* ipv6IfIcmpOutEchoReplies, # of output echo replies */
  223         u_quad_t ifs6_out_echoreply;
  224         /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
  225         u_quad_t ifs6_out_routersolicit;
  226         /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
  227         u_quad_t ifs6_out_routeradvert;
  228         /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
  229         u_quad_t ifs6_out_neighborsolicit;
  230         /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
  231         u_quad_t ifs6_out_neighboradvert;
  232         /* ipv6IfIcmpOutRedirects, # of output redirects */
  233         u_quad_t ifs6_out_redirect;
  234         /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
  235         u_quad_t ifs6_out_mldquery;
  236         /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
  237         u_quad_t ifs6_out_mldreport;
  238         /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
  239         u_quad_t ifs6_out_mlddone;
  240 };
  241 
  242 struct  in6_ifreq {
  243         char    ifr_name[IFNAMSIZ];
  244         union {
  245                 struct  sockaddr_in6 ifru_addr;
  246                 struct  sockaddr_in6 ifru_dstaddr;
  247                 short   ifru_flags;
  248                 int     ifru_flags6;
  249                 int     ifru_metric;
  250                 caddr_t ifru_data;
  251                 struct in6_addrlifetime ifru_lifetime;
  252                 struct in6_ifstat ifru_stat;
  253                 struct icmp6_ifstat ifru_icmp6stat;
  254         } ifr_ifru;
  255 };
  256 
  257 struct  in6_aliasreq {
  258         char    ifra_name[IFNAMSIZ];
  259         struct  sockaddr_in6 ifra_addr;
  260         struct  sockaddr_in6 ifra_dstaddr;
  261         struct  sockaddr_in6 ifra_prefixmask;
  262         int     ifra_flags;
  263         struct in6_addrlifetime ifra_lifetime;
  264 };
  265 
  266 /* prefix type macro */
  267 #define IN6_PREFIX_ND   1
  268 #define IN6_PREFIX_RR   2
  269 
  270 /*
  271  * prefix related flags passed between kernel(NDP related part) and
  272  * user land command(ifconfig) and daemon(rtadvd).
  273  */
  274 struct prf_ra {
  275         u_char onlink : 1;
  276         u_char autonomous : 1;
  277         u_char router : 1;
  278         u_char reserved : 5;
  279 };
  280 
  281 struct in6_prflags {
  282         struct prf_ra prf_ra;
  283         u_char prf_reserved1;
  284         u_short prf_reserved2;
  285         /* want to put this on 4byte offset */
  286         struct prf_rr {
  287                 u_char decrvalid : 1;
  288                 u_char decrprefd : 1;
  289                 u_char reserved : 6;
  290         } prf_rr;
  291         u_char prf_reserved3;
  292         u_short prf_reserved4;
  293 };
  294 
  295 struct  in6_prefixreq {
  296         char    ipr_name[IFNAMSIZ];
  297         u_char  ipr_origin;
  298         u_char  ipr_plen;
  299         u_int32_t ipr_vltime;
  300         u_int32_t ipr_pltime;
  301         struct in6_prflags ipr_flags;
  302         struct  sockaddr_in6 ipr_prefix;
  303 };
  304 
  305 #define PR_ORIG_RA      0
  306 #define PR_ORIG_RR      1
  307 #define PR_ORIG_STATIC  2
  308 #define PR_ORIG_KERNEL  3
  309 
  310 #define ipr_raf_onlink          ipr_flags.prf_ra.onlink
  311 #define ipr_raf_auto            ipr_flags.prf_ra.autonomous
  312 
  313 #define ipr_statef_onlink       ipr_flags.prf_state.onlink
  314 
  315 #define ipr_rrf_decrvalid       ipr_flags.prf_rr.decrvalid
  316 #define ipr_rrf_decrprefd       ipr_flags.prf_rr.decrprefd
  317 
  318 struct  in6_rrenumreq {
  319         char    irr_name[IFNAMSIZ];
  320         u_char  irr_origin;
  321         u_char  irr_m_len;      /* match len for matchprefix */
  322         u_char  irr_m_minlen;   /* minlen for matching prefix */
  323         u_char  irr_m_maxlen;   /* maxlen for matching prefix */
  324         u_char  irr_u_uselen;   /* uselen for adding prefix */
  325         u_char  irr_u_keeplen;  /* keeplen from matching prefix */
  326         struct irr_raflagmask {
  327                 u_char onlink : 1;
  328                 u_char autonomous : 1;
  329                 u_char reserved : 6;
  330         } irr_raflagmask;
  331         u_int32_t irr_vltime;
  332         u_int32_t irr_pltime;
  333         struct in6_prflags irr_flags;
  334         struct  sockaddr_in6 irr_matchprefix;
  335         struct  sockaddr_in6 irr_useprefix;
  336 };
  337 
  338 #define irr_raf_mask_onlink     irr_raflagmask.onlink
  339 #define irr_raf_mask_auto       irr_raflagmask.autonomous
  340 #define irr_raf_mask_reserved   irr_raflagmask.reserved
  341 
  342 #define irr_raf_onlink          irr_flags.prf_ra.onlink
  343 #define irr_raf_auto            irr_flags.prf_ra.autonomous
  344 
  345 #define irr_statef_onlink       irr_flags.prf_state.onlink
  346 
  347 #define irr_rrf                 irr_flags.prf_rr
  348 #define irr_rrf_decrvalid       irr_flags.prf_rr.decrvalid
  349 #define irr_rrf_decrprefd       irr_flags.prf_rr.decrprefd
  350 
  351 /*
  352  * Given a pointer to an in6_ifaddr (ifaddr),
  353  * return a pointer to the addr as a sockaddr_in6
  354  */
  355 #define IA6_IN6(ia)     (&((ia)->ia_addr.sin6_addr))
  356 #define IA6_DSTIN6(ia)  (&((ia)->ia_dstaddr.sin6_addr))
  357 #define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
  358 #define IA6_SIN6(ia)    (&((ia)->ia_addr))
  359 #define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
  360 #define IFA_IN6(x)      (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
  361 #define IFA_DSTIN6(x)   (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
  362 
  363 #ifdef _KERNEL
  364 #define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m)      (       \
  365         (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
  366         (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
  367         (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
  368         (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
  369 #endif
  370 
  371 #define SIOCSIFADDR_IN6          _IOW('i', 12, struct in6_ifreq)
  372 #define SIOCGIFADDR_IN6         _IOWR('i', 33, struct in6_ifreq)
  373 
  374 #ifdef _KERNEL
  375 /*
  376  * SIOCSxxx ioctls should be unused (see comments in in6.c), but
  377  * we do not shift numbers for binary compatibility.
  378  */
  379 #define SIOCSIFDSTADDR_IN6       _IOW('i', 14, struct in6_ifreq)
  380 #define SIOCSIFNETMASK_IN6       _IOW('i', 22, struct in6_ifreq)
  381 #endif
  382 
  383 #define SIOCGIFDSTADDR_IN6      _IOWR('i', 34, struct in6_ifreq)
  384 #define SIOCGIFNETMASK_IN6      _IOWR('i', 37, struct in6_ifreq)
  385 
  386 #define SIOCDIFADDR_IN6          _IOW('i', 25, struct in6_ifreq)
  387 #define SIOCAIFADDR_IN6          _IOW('i', 26, struct in6_aliasreq)
  388 
  389 #define SIOCSIFPHYADDR_IN6       _IOW('i', 70, struct in6_aliasreq)
  390 #define SIOCGIFPSRCADDR_IN6     _IOWR('i', 71, struct in6_ifreq)
  391 #define SIOCGIFPDSTADDR_IN6     _IOWR('i', 72, struct in6_ifreq)
  392 
  393 #define SIOCGIFAFLAG_IN6        _IOWR('i', 73, struct in6_ifreq)
  394 
  395 #define SIOCGDRLST_IN6          _IOWR('i', 74, struct in6_drlist)
  396 #define SIOCGPRLST_IN6          _IOWR('i', 75, struct in6_oprlist)
  397 #ifdef _KERNEL
  398 #define OSIOCGIFINFO_IN6        _IOWR('i', 76, struct in6_ondireq)
  399 #endif
  400 #define SIOCGIFINFO_IN6         _IOWR('i', 108, struct in6_ndireq)
  401 #define SIOCSNDFLUSH_IN6        _IOWR('i', 77, struct in6_ifreq)
  402 #define SIOCGNBRINFO_IN6        _IOWR('i', 78, struct in6_nbrinfo)
  403 #define SIOCSPFXFLUSH_IN6       _IOWR('i', 79, struct in6_ifreq)
  404 #define SIOCSRTRFLUSH_IN6       _IOWR('i', 80, struct in6_ifreq)
  405 
  406 #define SIOCGIFALIFETIME_IN6    _IOWR('i', 81, struct in6_ifreq)
  407 #define SIOCSIFALIFETIME_IN6    _IOWR('i', 82, struct in6_ifreq)
  408 #define SIOCGIFSTAT_IN6         _IOWR('i', 83, struct in6_ifreq)
  409 #define SIOCGIFSTAT_ICMP6       _IOWR('i', 84, struct in6_ifreq)
  410 
  411 #define SIOCSDEFIFACE_IN6       _IOWR('i', 85, struct in6_ndifreq)
  412 #define SIOCGDEFIFACE_IN6       _IOWR('i', 86, struct in6_ndifreq)
  413 
  414 #define SIOCSIFINFO_FLAGS       _IOWR('i', 87, struct in6_ndireq) /* XXX */
  415 
  416 #define SIOCSIFPREFIX_IN6       _IOW('i', 100, struct in6_prefixreq) /* set */
  417 #define SIOCGIFPREFIX_IN6       _IOWR('i', 101, struct in6_prefixreq) /* get */
  418 #define SIOCDIFPREFIX_IN6       _IOW('i', 102, struct in6_prefixreq) /* del */
  419 #define SIOCAIFPREFIX_IN6       _IOW('i', 103, struct in6_rrenumreq) /* add */
  420 #define SIOCCIFPREFIX_IN6       _IOW('i', 104, \
  421                                      struct in6_rrenumreq) /* change */
  422 #define SIOCSGIFPREFIX_IN6      _IOW('i', 105, \
  423                                      struct in6_rrenumreq) /* set global */
  424 
  425 #define SIOCGETSGCNT_IN6        _IOWR('u', 106, \
  426                                       struct sioc_sg_req6) /* get s,g pkt cnt */
  427 #define SIOCGETMIFCNT_IN6       _IOWR('u', 107, \
  428                                       struct sioc_mif_req6) /* get pkt cnt per if */
  429 
  430 #define IN6_IFF_ANYCAST         0x01    /* anycast address */
  431 #define IN6_IFF_TENTATIVE       0x02    /* tentative address */
  432 #define IN6_IFF_DUPLICATED      0x04    /* DAD detected duplicate */
  433 #define IN6_IFF_DETACHED        0x08    /* may be detached from the link */
  434 #define IN6_IFF_DEPRECATED      0x10    /* deprecated address */
  435 #define IN6_IFF_NODAD           0x20    /* don't perform DAD on this address
  436                                          * (used only at first SIOC* call)
  437                                          */
  438 #define IN6_IFF_AUTOCONF        0x40    /* autoconfigurable address. */
  439 
  440 /* do not input/output */
  441 #define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
  442 
  443 #ifdef _KERNEL
  444 #define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
  445 #define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
  446 #endif
  447 
  448 #ifdef _KERNEL
  449 MALLOC_DECLARE(M_IP6OPT);
  450 
  451 extern struct in6_ifaddr *in6_ifaddr;
  452 
  453 extern struct icmp6stat icmp6stat;
  454 #define in6_ifstat_inc(ifp, tag) \
  455 do {                                                            \
  456         if (ifp)                                                \
  457                 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
  458 } while (/*CONSTCOND*/ 0)
  459 
  460 extern struct ifqueue ip6intrq;         /* IP6 packet input queue */
  461 extern struct in6_addr zeroin6_addr;
  462 extern u_char inet6ctlerrmap[];
  463 extern unsigned long in6_maxmtu;
  464 
  465 /*
  466  * Macro for finding the internet address structure (in6_ifaddr) corresponding
  467  * to a given interface (ifnet structure).
  468  */
  469 
  470 #define IFP_TO_IA6(ifp, ia)                             \
  471 /* struct ifnet *ifp; */                                \
  472 /* struct in6_ifaddr *ia; */                            \
  473 do {                                                                    \
  474         struct ifaddr *ifa;                                             \
  475         for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) {   \
  476                 if (!ifa->ifa_addr)                                     \
  477                         continue;                                       \
  478                 if (ifa->ifa_addr->sa_family == AF_INET6)               \
  479                         break;                                          \
  480         }                                                               \
  481         (ia) = (struct in6_ifaddr *)ifa;                                \
  482 } while (/*CONSTCOND*/ 0)
  483 
  484 #endif /* _KERNEL */
  485 
  486 /*
  487  * Multi-cast membership entry.  One for each group/ifp that a PCB
  488  * belongs to.
  489  */
  490 struct in6_multi_mship {
  491         struct  in6_multi *i6mm_maddr;  /* Multicast address pointer */
  492         LIST_ENTRY(in6_multi_mship) i6mm_chain;  /* multicast options chain */
  493 };
  494 
  495 struct  in6_multi {
  496         LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
  497         struct  in6_addr in6m_addr;     /* IP6 multicast address */
  498         struct  ifnet *in6m_ifp;        /* back pointer to ifnet */
  499         struct  in6_ifaddr *in6m_ia;    /* back pointer to in6_ifaddr */
  500         u_int   in6m_refcount;          /* # membership claims by sockets */
  501         u_int   in6m_state;             /* state of the membership */
  502         u_int   in6m_timer;             /* MLD6 listener report timer */
  503 };
  504 
  505 #ifdef _KERNEL
  506 
  507 /*
  508  * Structure used by macros below to remember position when stepping through
  509  * all of the in6_multi records.
  510  */
  511 struct  in6_multistep {
  512         struct  in6_ifaddr *i_ia;
  513         struct  in6_multi *i_in6m;
  514 };
  515 
  516 /*
  517  * Macros for looking up the in6_multi record for a given IP6 multicast
  518  * address on a given interface. If no matching record is found, "in6m"
  519  * returns NLL.
  520  */
  521 
  522 #define IN6_LOOKUP_MULTI(addr, ifp, in6m)                       \
  523 /* struct in6_addr addr; */                                     \
  524 /* struct ifnet *ifp; */                                        \
  525 /* struct in6_multi *in6m; */                                   \
  526 do {                                                            \
  527         struct in6_ifaddr *ia;                                  \
  528                                                                 \
  529         IFP_TO_IA6((ifp), ia);                                  \
  530         if (ia == NULL)                                         \
  531                 (in6m) = NULL;                                  \
  532         else                                                    \
  533                 for ((in6m) = ia->ia6_multiaddrs.lh_first;      \
  534                      (in6m) != NULL &&                          \
  535                      !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr));  \
  536                      (in6m) = in6m->in6m_entry.le_next)         \
  537                         continue;                               \
  538 } while (/*CONSTCOND*/ 0)
  539 
  540 /*
  541  * Macro to step through all of the in6_multi records, one at a time.
  542  * The current position is remembered in "step", which the caller must
  543  * provide.  IN6_FIRST_MULTI(), below, must be called to initialize "step"
  544  * and get the first record.  Both macros return a NULL "in6m" when there
  545  * are no remaining records.
  546  */
  547 #define IN6_NEXT_MULTI(step, in6m)                                      \
  548 /* struct in6_multistep step; */                                        \
  549 /* struct in6_multi *in6m; */                                           \
  550 do {                                                                    \
  551         if (((in6m) = (step).i_in6m) != NULL)                           \
  552                 (step).i_in6m = (in6m)->in6m_entry.le_next;             \
  553         else                                                            \
  554                 while ((step).i_ia != NULL) {                           \
  555                         (in6m) = (step).i_ia->ia6_multiaddrs.lh_first;  \
  556                         (step).i_ia = (step).i_ia->ia_next;             \
  557                         if ((in6m) != NULL) {                           \
  558                                 (step).i_in6m = (in6m)->in6m_entry.le_next; \
  559                                 break;                                  \
  560                         }                                               \
  561                 }                                                       \
  562 } while (/*CONSTCOND*/ 0)
  563 
  564 #define IN6_FIRST_MULTI(step, in6m)             \
  565 /* struct in6_multistep step; */                \
  566 /* struct in6_multi *in6m */                    \
  567 do {                                            \
  568         (step).i_ia = in6_ifaddr;               \
  569         (step).i_in6m = NULL;                   \
  570         IN6_NEXT_MULTI((step), (in6m));         \
  571 } while (/*CONSTCOND*/ 0)
  572 
  573 struct  in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *,
  574         int *));
  575 void    in6_delmulti __P((struct in6_multi *));
  576 struct in6_multi_mship *in6_joingroup __P((struct ifnet *, struct in6_addr *,
  577         int *));
  578 int     in6_leavegroup __P((struct in6_multi_mship *));
  579 int     in6_ifindex2scopeid __P((int));
  580 int     in6_mask2len __P((struct in6_addr *, u_char *));
  581 int     in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *,
  582         struct proc *));
  583 int     in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *,
  584         struct in6_ifaddr *));
  585 void    in6_purgeaddr __P((struct ifaddr *));
  586 int     in6if_do_dad __P((struct ifnet *));
  587 void    in6_purgeif __P((struct ifnet *));
  588 void    in6_savemkludge __P((struct in6_ifaddr *));
  589 void    in6_setmaxmtu   __P((void));
  590 void    *in6_domifattach __P((struct ifnet *));
  591 void    in6_domifdetach __P((struct ifnet *, void *));
  592 void    in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *));
  593 void    in6_createmkludge __P((struct ifnet *));
  594 void    in6_purgemkludge __P((struct ifnet *));
  595 struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *, int));
  596 struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, struct in6_addr *));
  597 char    *ip6_sprintf __P((const struct in6_addr *));
  598 int     in6_addr2scopeid __P((struct ifnet *, struct in6_addr *));
  599 int     in6_matchlen __P((struct in6_addr *, struct in6_addr *));
  600 int     in6_are_prefix_equal __P((struct in6_addr *, struct in6_addr *, int));
  601 void    in6_prefixlen2mask __P((struct in6_addr *, int));
  602 void    in6_purgeprefix __P((struct ifnet *));
  603 
  604 int     in6_is_addr_deprecated __P((struct sockaddr_in6 *));
  605 struct in6pcb;
  606 int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *,
  607         struct in6pcb *, struct ifnet **));
  608 int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *,
  609         struct ifnet *));
  610 void in6_clearscope __P((struct in6_addr *));
  611 #endif /* _KERNEL */
  612 
  613 #endif /* _NETINET6_IN6_VAR_H_ */

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