| 1 | /*
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| 2 | * TINET (TCP/IP Protocol Stack)
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| 3 | *
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| 4 | * Copyright (C) 2001-2017 by Dep. of Computer Science and Engineering
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| 5 | * Tomakomai National College of Technology, JAPAN
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| 6 | *
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| 7 | * ä¸è¨èä½æ¨©è
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| 8 | ã¯ï¼ä»¥ä¸ã® (1)ï½(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 9 | * ã«ãã£ã¦å
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| 10 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 11 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 12 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 13 | å¸ï¼ä»¥ä¸ï¼
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| 14 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 15 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 16 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
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| 17 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 18 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 19 | * ç¨ã§ããå½¢ã§åé
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| 20 | å¸ããå ´åã«ã¯ï¼åé
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| 21 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 22 | * è
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| 23 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 24 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 25 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 26 | * ç¨ã§ããªãå½¢ã§åé
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| 27 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®æ¡ä»¶ãæºãããã¨ï¼
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| 28 | * (a) åé
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| 29 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 30 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 31 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 32 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 33 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 34 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 35 | 責ãããã¨ï¼
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| 36 | *
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| 37 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 38 | ã
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| 39 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 40 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 41 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 42 | *
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| 43 | * @(#) $Id: nd6.h 388 2019-05-22 11:25:18Z coas-nagasima $
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| 44 | */
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| 45 |
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| 46 | /* $FreeBSD: src/sys/netinet6/nd6.h,v 1.10 2002/04/19 04:46:23 suz Exp $ */
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| 47 | /* $KAME: nd6.h,v 1.76 2001/12/18 02:10:31 itojun Exp $ */
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| 48 |
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| 49 | /*
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| 50 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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| 51 | * All rights reserved.
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| 52 | *
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| 53 | * Redistribution and use in source and binary forms, with or without
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| 54 | * modification, are permitted provided that the following conditions
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| 55 | * are met:
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| 56 | * 1. Redistributions of source code must retain the above copyright
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| 57 | * notice, this list of conditions and the following disclaimer.
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| 58 | * 2. Redistributions in binary form must reproduce the above copyright
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| 59 | * notice, this list of conditions and the following disclaimer in the
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| 60 | * documentation and/or other materials provided with the distribution.
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| 61 | * 3. Neither the name of the project nor the names of its contributors
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| 62 | * may be used to endorse or promote products derived from this software
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| 63 | * without specific prior written permission.
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| 64 | *
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| 65 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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| 66 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 67 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 68 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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| 69 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 70 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 71 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 72 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 73 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 74 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 75 | * SUCH DAMAGE.
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| 76 | */
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| 77 |
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| 78 | #ifndef _ND6_H_
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| 79 | #define _ND6_H_
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| 80 |
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| 81 | /*
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| 82 | * ãããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹æ§é ä½ï¼T_IFNETï¼ã®ãã©ã°
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| 83 | */
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| 84 |
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| 85 | #define ND6_IFF_IFDISABLED UINT_C(0x01) /* ã¤ã³ã¿ãã§ã¼ã¹ãç¡å¹ã«ããã*/
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| 86 |
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| 87 | /*
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| 88 | * è¿é£ãã£ãã·ã¥
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| 89 | */
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| 90 |
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| 91 | typedef struct t_llinfo_nd6 {
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| 92 | T_IN6_ADDR addr;
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| 93 | T_NET_BUF *hold;
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| 94 | TMO tmout;
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| 95 | SYSTIM expire; /* [us] æå¹æéãåããæå» */
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| 96 | T_IF_ADDR ifaddr;
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| 97 | uint8_t state;
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| 98 | uint8_t asked;
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| 99 | uint8_t flags;
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| 100 | } T_LLINFO_ND6;
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| 101 |
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| 102 | /* è¿é£ãã£ãã·ã¥ã®ç¶æ
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| 103 | */
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| 104 |
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| 105 | #define ND6_LLINFO_FREE 0 /* æªä½¿ç¨ */
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| 106 | #define ND6_LLINFO_NO_STATE 1 /* ç¶æ
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| 107 | æªå®ç¾© */
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| 108 | #define ND6_LLINFO_INCOMPLETE 2 /* æªè§£æ±º */
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| 109 | #define ND6_LLINFO_REACHABLE 3 /* å°éå¯è½ */
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| 110 | #define ND6_LLINFO_STALE 4 /* å°éå¯è½æ§ã¯æªç¢ºèª */
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| 111 | #define ND6_LLINFO_DELAY 5 /* å°éå¯è½æ§ã®ç¢ºèªå¾
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| 112 | æ© */
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| 113 | #define ND6_LLINFO_PROBE 6 /* å°éå¯è½æ§ã確èªä¸ */
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| 114 |
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| 115 | #define ND6_IS_LLINFO_PROBREACH(n) ((n)->state > ND6_LLINFO_INCOMPLETE)
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| 116 |
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| 117 | /* è¿é£ãã£ãã·ã¥ã®å¶å¾¡ããã */
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| 118 |
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| 119 | #define ND6_LLIF_ROUTER UINT_C(0x80) /* ã«ã¼ã¿ */
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| 120 | #define ND6_LLIF_ASKED UINT_C(0x40) /* éç¥æ¸ã¿ */
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| 121 | #define ND6_LLIF_STATE_MASK UINT_C(0x07) /* ç¶æ
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| 122 | ãã¹ã¯ */
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| 123 |
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| 124 | /* è¿é£æ¢ç´¢ãã£ãã·ã¥ãæå¹æéã®å®ç¾© */
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| 125 |
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| 126 | #define ND6_SLOW_TMO ((60*60*1000)/NET_TIMER_HZ)
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| 127 | /* 1 [æé] */
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| 128 | /* è¿é£æ¢ç´¢ãã£ãã·ã¥æ´æ°ã¿ã¤ã ã¢ã¦ã */
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| 129 |
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| 130 | #define ND6_MAX_DAD_TRY 15 /* éè¤ã¢ãã¬ã¹æ¤åºã®åéåæ° */
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| 131 | #define ND6_MAX_MCAST_QUERY 3 /* ãã«ããã£ã¹ãã¢ãã¬ã¹è¦è«ã®åéåæ° */
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| 132 | #define ND6_MAX_UCAST_QUERY 3 /* ã¦ããã£ã¹ãã¢ãã¬ã¹è¦è«ã®åéåæ° */
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| 133 |
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| 134 | #define ND6_GCOLLECTION_TIME (60*60*24*SYSTIM_HZ)
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| 135 | /* ã´ãæ¾ãå¨æã1 æ¥ */
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| 136 | #define ND6_DELAY_TIME (5*SYSTIM_HZ) /* 確èªå¾
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| 137 | æ©é
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| 138 | 延 */
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| 139 | #define ND6_FIRST_DAD_DELAY_TIME (1*SYSTIM_HZ) /* æåã®éè¤ã¢ãã¬ã¹æ¤åºéä¿¡é
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| 140 | 延 */
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| 141 | #define ND6_DAD_DELAY_TIME (5*SYSTIM_HZ/10)
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| 142 | /* éè¤ã¢ãã¬ã¹æ¤åºéä¿¡é
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| 143 | 延 */
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| 144 |
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| 145 | /* è¿é£æ¢ç´¢ç¨ã¿ã¤ãã®è¨å® */
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| 146 |
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| 147 | #define ND6_TIMER_TMO ((SYSTIM_HZ/NET_TIMER_CYCLE)/5) /* 0.2[s] éé */
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| 148 |
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| 149 | /*
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| 150 | * å°éå¯è½ç¶æ
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| 151 | ã®æå¹æé
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| 152 | */
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| 153 |
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| 154 | #define ND6_DEF_REACHABLE_TIME (30*SYSTIM_HZ) /* å°éå¯è½ç¶æ
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| 155 | ã®æå¹æéã®æ¢å®å¤ */
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| 156 | #define ND6_MAX_REACHABLE_TIME (60*60*SYSTIM_HZ)
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| 157 | /* å°éå¯è½ç¶æ
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| 158 | ã®æå¹æéã®æ¢å®å¤ */
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| 159 | #define ND6_RECALC_REACHTM_INTERVAL (60*60*2*SYSTIM_HZ)
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| 160 | /* å°éå¯è½ç¶æ
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| 161 | ã®æå¹æéåè¨ç®éé */
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| 162 |
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| 163 | #define ND6_MIN_REACHTM_RAND_FACTOR 512 /* æå°ä¹±æ°è£æ£å¤ã1,024 * 0.5 */
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| 164 |
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| 165 | #if 1 /* ã¿ã¤ãã¼ã®èµ·åééãèæ
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| 166 | ®ããè¦å®ããçãè¨å® */
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| 167 | #define ND6_MAX_REACHTM_RAND_FACTOR 1484 /* æå°ä¹±æ°è£æ£å¤ã1,024 * 1.45 */
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| 168 | #else
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| 169 | #define ND6_MAX_REACHTM_RAND_FACTOR 1536 /* æå°ä¹±æ°è£æ£å¤ã1,024 * 1.5 */
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| 170 | #endif
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| 171 |
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| 172 | /* å°éå¯è½ç¶æ
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| 173 | ã®æå¹æéã®è¨ç®ãã¯ã */
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| 174 |
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| 175 | #define ND6_CALC_REACH_TIME(b) \
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| 176 | ((ND6_MIN_REACHTM_RAND_FACTOR * ((uint32_t)(b) >> 10)) + \
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| 177 | (net_rand() & ((ND6_MAX_REACHTM_RAND_FACTOR - ND6_MIN_REACHTM_RAND_FACTOR) * ((uint32_t)(b) >> 10))))
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| 178 |
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| 179 | /*
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| 180 | * è¿é£æ¢ç´¢ã®éä¿¡éé
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| 181 | */
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| 182 |
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| 183 | #define ND6_DEF_RETRANS_TIME (1*SYSTIM_HZ)
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| 184 |
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| 185 | /*
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| 186 | * ã«ã¼ã¿éç¥ã«ããå¤æ´ããããã¨ãããå¤
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| 187 | */
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| 188 |
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| 189 | #if NUM_ND6_DEF_RTR_ENTRY > 0
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| 190 |
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| 191 | /* ã«ã¼ã¿éç¥ãåä¿¡ããå ´åã¯ãéç¥ãããå¤ */
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| 192 |
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| 193 | #define ND6_REACHABLE_TIME nd6_reachable_time
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| 194 | #define ND6_RETRANS_TIME nd6_retrans_time
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| 195 |
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| 196 | #else /* #if NUM_ND6_DEF_RTR_ENTRY > 0 */
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| 197 |
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| 198 | /* ã«ã¼ã¿éç¥ãåä¿¡ããªãå ´åã®å¤ã¯æ¢å®å¤ */
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| 199 |
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| 200 | #define ND6_REACHABLE_TIME ND6_DEF_REACHABLE_TIME
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| 201 | #define ND6_RETRANS_TIME ND6_DEF_RETRANS_TIME
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| 202 |
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| 203 | #endif /* #if NUM_ND6_DEF_RTR_ENTRY > 0 */
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| 204 |
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| 205 | /*
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| 206 | * ãã£ãã©ã«ãã«ã¼ã¿ã»ãªã¹ã
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| 207 | */
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| 208 |
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| 209 | typedef struct t_def_router {
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| 210 | T_IN6_ADDR addr;
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| 211 | SYSTIM expire; /* [us] æå¹æéãåããæå» */
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| 212 | uint32_t lifetime; /* [us] æå¹æé */
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| 213 | uint16_t plistmap; /* ãã¬ãã£ãã¯ã¹ããã */
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| 214 | uint8_t flags; /* ã«ã¼ã¿éç¥ã®ãã©ã° */
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| 215 | uint8_t state;
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| 216 | } T_DEF_ROUTER;
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| 217 |
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| 218 | /* ãã£ãã©ã«ãã«ã¼ã¿ã»ãªã¹ãã®ç¶æ
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| 219 | */
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| 220 |
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| 221 | #define ND6_DEF_RTR_BUSY 0xff /* 使ç¨ä¸ */
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| 222 |
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| 223 | /* ãã¬ãã£ãã¯ã¹ã®ã¤ã³ããã¯ã¹ */
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| 224 |
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| 225 | #define ND6_PREFIX_IX_INVALID 0xff
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| 226 |
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| 227 | /*
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| 228 | * ãã¬ãã£ãã¯ã¹ã»ãªã¹ã
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| 229 | */
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| 230 |
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| 231 | typedef struct t_nd6_prefix {
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| 232 | T_IN6_ADDR prefix; /* ãã¬ãã£ãã¯ã¹ */
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| 233 | uint32_t expire; /* [s] æå¹æéãåããæå» */
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| 234 | uint32_t preferred; /* [s] æ¨å¥¨æå¹æéãåããæå» */
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| 235 | uint32_t vltime; /* [s] æå¹æé */
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| 236 | uint32_t pltime; /* [s] æ¨å¥¨æå¹æé */
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| 237 | uint16_t routermap; /* ã«ã¼ã¿ããã */
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| 238 | uint8_t flags; /* ãã©ã° */
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| 239 | uint8_t prefix_len; /* ãã¬ãã£ãã¯ã¹é· */
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| 240 | } T_ND6_PREFIX;
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| 241 |
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| 242 | /* ãã©ã° */
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| 243 |
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| 244 | #define ND6_PREFIX_FLAG_ONLINK UINT_C(0x80) /* ãªã³ãªã³ã¯ãã¬ãã£ãã¯ã¹ */
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| 245 | #define ND6_PREFIX_FLAG_AUTO UINT_C(0x40) /* ã¹ãã¼ãã¬ã¹ã»ã¢ãã¬ã¹èªåè¨å®*/
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| 246 |
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| 247 | #define ND6_PREFIX_STATE_BUSY UINT_C(0x01) /* 使ç¨ä¸ */
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| 248 | #define ND6_PREFIX_STATE_ONLINK UINT_C(0x02) /* ãªã³ãªã³ã¯ç¶æ
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| 249 | */
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| 250 | #define ND6_PREFIX_STATE_DETACHED UINT_C(0x04) /* é使ç¨ç¶æ
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| 251 | */
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| 252 |
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| 253 | /*
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| 254 | * å¤æ°
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| 255 | */
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| 256 |
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| 257 | extern SYSTIM nd6_base_reachable_time;
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| 258 | extern SYSTIM nd6_reachable_time;
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| 259 | extern SYSTIM nd6_recalc_reachtm_interval;
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| 260 | extern SYSTIM nd6_retrans_time;
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| 261 |
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| 262 | /*
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| 263 | * é¢æ°
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| 264 | */
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| 265 |
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| 266 | extern void nd6_ifattach (T_IFNET *ifp);
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| 267 | extern void nd6_ns_output (T_IFNET *ifp, const T_IN6_ADDR *daddr,
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| 268 | const T_IN6_ADDR *taddr, T_LLINFO_ND6 *ln, bool_t dad);
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| 269 | extern void nd6_na_output (T_IFNET *ifp, const T_IN6_ADDR *daddr,
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| 270 | const T_IN6_ADDR *taddr, uint32_t flags, bool_t tlladdr);
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| 271 | extern void nd6_dad_start (T_IFNET *ifp, T_IN6_IFADDR *ia, int_t *tick);
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| 272 | extern ER nd6_output (T_IFNET *ifp, T_NET_BUF *output,
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| 273 | const T_IN6_ADDR *dst, T_LLINFO_ND6 *ln, TMO tmout);
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| 274 | extern void nd6_na_input (T_NET_BUF *input, uint_t off);
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| 275 | extern void nd6_ns_input (T_NET_BUF *input, uint_t off);
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| 276 | extern void nd6_ra_input (T_NET_BUF *input, uint_t off);
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| 277 | extern ER nd6_storelladdr (T_IF_ADDR *out, const T_IN6_ADDR *dst, T_IF_ADDR *ifa);
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| 278 | extern ER nd6_options (uint8_t *opt, void *nh, uint_t len);
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| 279 | extern T_LLINFO_ND6 *nd6_lookup (const T_IN6_ADDR *addr, bool_t create);
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| 280 | extern ER nd6_output_hold (T_IFNET *ifp, T_LLINFO_ND6 *ln);
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| 281 | extern T_LLINFO_ND6 *nd6_cache_lladdr (T_IFNET *ifp, const T_IN6_ADDR *from,
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| 282 | T_IF_ADDR *lladdr, uint8_t type, uint8_t code);
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| 283 | extern void nd6_defrtrlist_timer (void);
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| 284 | extern void nd6_prelist_timer (void);
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| 285 | extern void nd6_rtrsol_ctl (void);
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| 286 | extern const T_IN6_ADDR *nd6_router_lookup (void);
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| 287 | extern T_DEF_ROUTER *nd6_defrtrlist_lookup (const T_IN6_ADDR *src);
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| 288 | extern void nd6_defrtrlist_del (T_DEF_ROUTER *dr);
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| 289 | extern void nd6_timer (void);
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| 290 | extern const T_DEF_ROUTER *nd6_get_drl (uint_t *count);
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| 291 | extern const T_ND6_PREFIX *nd6_get_prl (void);
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| 292 | extern const T_LLINFO_ND6 *nd6_get_cache (void);
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| 293 | extern ER nd6_prefix_onlink (T_ND6_PREFIX *pr);
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| 294 | extern ER nd6_prefix_offlink (T_ND6_PREFIX *pr);
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| 295 | extern T_ND6_PREFIX *nd6_onlink_prefix_lookup (const T_IN6_ADDR *dst);
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| 296 |
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| 297 | #endif /* of #ifndef _ND6_H_ */
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