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_prefix.h

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    1 /*      $FreeBSD: releng/5.2/sys/netinet6/in6_prefix.h 78064 2001-06-11 12:39:29Z ume $ */
    2 /*      $KAME: in6_prefix.h,v 1.10 2001/02/08 16:30:30 itojun Exp $     */
    3 
    4 /*
    5  * Copyright (C) 1995, 1996, 1997, 1998 and 1999 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 #include <sys/callout.h>
   34 
   35 struct rr_prefix {
   36         struct ifprefix rp_ifpr;
   37         LIST_ENTRY(rr_prefix) rp_entry;
   38         LIST_HEAD(rp_addrhead, rp_addr) rp_addrhead;
   39         struct sockaddr_in6 rp_prefix;  /* prefix */
   40         u_int32_t rp_vltime;    /* advertised valid lifetime */
   41         u_int32_t rp_pltime;    /* advertised preferred lifetime */
   42         time_t rp_expire;       /* expiration time of the prefix */
   43         time_t rp_preferred;    /* preferred time of the prefix */
   44         struct in6_prflags rp_flags;
   45         u_char  rp_origin; /* from where this prefix info is obtained */
   46         struct  rp_stateflags {
   47                 /* if some prefix should be added to this prefix */
   48                 u_char addmark : 1;
   49                 u_char delmark : 1; /* if this prefix will be deleted */
   50         } rp_stateflags;
   51 };
   52 
   53 #define rp_type         rp_ifpr.ifpr_type
   54 #define rp_ifp          rp_ifpr.ifpr_ifp
   55 #define rp_plen         rp_ifpr.ifpr_plen
   56 
   57 #define rp_raf          rp_flags.prf_ra
   58 #define rp_raf_onlink           rp_flags.prf_ra.onlink
   59 #define rp_raf_auto             rp_flags.prf_ra.autonomous
   60 
   61 #define rp_statef_addmark       rp_stateflags.addmark
   62 #define rp_statef_delmark       rp_stateflags.delmark
   63 
   64 #define rp_rrf          rp_flags.prf_rr
   65 #define rp_rrf_decrvalid        rp_flags.prf_rr.decrvalid
   66 #define rp_rrf_decrprefd        rp_flags.prf_rr.decrprefd
   67 
   68 struct rp_addr {
   69         LIST_ENTRY(rp_addr)     ra_entry;
   70         struct in6_addr         ra_ifid;
   71         struct in6_ifaddr       *ra_addr;
   72         struct ra_flags {
   73                 u_char anycast : 1;
   74         } ra_flags;
   75 };
   76 
   77 #define ifpr2rp(ifpr)   ((struct rr_prefix *)(ifpr))
   78 #define rp2ifpr(rp)     ((struct ifprefix *)(rp))
   79 
   80 #define RP_IN6(rp)      (&(rp)->rp_prefix.sin6_addr)
   81 
   82 #define RR_INFINITE_LIFETIME            0xffffffff
   83 
   84 
   85 LIST_HEAD(rr_prhead, rr_prefix);
   86 
   87 extern struct rr_prhead rr_prefix;
   88 
   89 void in6_rr_timer __P((void *));
   90 extern struct callout in6_rr_timer_ch;
   91 int delete_each_prefix  __P((struct rr_prefix *rpp, u_char origin));

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