bsd/netinet6/in6_prefix.h

   1 /*
   2  * Copyright (C) 1995, 1996, 1997, 1998 and 1999 WIDE Project.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the project nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 struct rr_prefix {
  31         struct ifprefix rp_ifpr;
  32         LIST_ENTRY(rr_prefix) rp_entry;
  33         LIST_HEAD(rp_addrhead, rp_addr) rp_addrhead;
  34         struct sockaddr_in6 rp_prefix;  /* prefix */
  35         u_int32_t rp_vltime;    /* advertised valid lifetime */
  36         u_int32_t rp_pltime;    /* advertised preferred lifetime */
  37         time_t rp_expire;       /* expiration time of the prefix */
  38         time_t rp_preferred;    /* preferred time of the prefix */
  39         struct in6_prflags rp_flags;
  40         u_char  rp_origin; /* from where this prefix info is obtained */
  41         struct  rp_stateflags {
  42                 /* if some prefix should be added to this prefix */
  43                 u_char addmark : 1;
  44                 u_char delmark : 1; /* if this prefix will be deleted */
  45         } rp_stateflags;
  46 };
  47
  48 #define rp_type         rp_ifpr.ifpr_type
  49 #define rp_ifp          rp_ifpr.ifpr_ifp
  50 #define rp_plen         rp_ifpr.ifpr_plen
  51
  52 #define rp_raf          rp_flags.prf_ra
  53 #define rp_raf_onlink           rp_flags.prf_ra.onlink
  54 #define rp_raf_auto             rp_flags.prf_ra.autonomous
  55
  56 #define rp_statef_addmark       rp_stateflags.addmark
  57 #define rp_statef_delmark       rp_stateflags.delmark
  58
  59 #define rp_rrf          rp_flags.prf_rr
  60 #define rp_rrf_decrvalid        rp_flags.prf_rr.decrvalid
  61 #define rp_rrf_decrprefd        rp_flags.prf_rr.decrprefd
  62
  63 struct rp_addr {
  64         LIST_ENTRY(rp_addr)     ra_entry;
  65         struct in6_addr         ra_ifid;
  66         struct in6_ifaddr       *ra_addr;
  67         struct ra_flags {
  68                 u_char anycast : 1;
  69         } ra_flags;
  70 };
  71
  72 #define ifpr2rp(ifpr)   ((struct rr_prefix *)(ifpr))
  73 #define rp2ifpr(rp)     ((struct ifprefix *)(rp))
  74
  75 #define RP_IN6(rp)      (&(rp)->rp_prefix.sin6_addr)
  76
  77 #define RR_INFINITE_LIFETIME            0xffffffff
  78
  79
  80 LIST_HEAD(rr_prhead, rr_prefix);
  81
  82 extern struct rr_prhead rr_prefix;
  83
  84 void in6_rr_timer __P((void *));
  85 int delete_each_prefix  __P((struct rr_prefix *rpp, u_char origin));