1 /* $FreeBSD: releng/5.0/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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