| 1 | /*
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| 2 | * TINET (TCP/IP Protocol Stack)
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| 3 | *
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| 4 | * Copyright (C) 2001-2009 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: in6_var.h 270 2017-02-09 04:03:47Z coas-nagasima $
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| 44 | */
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| 45 |
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| 46 | /* $FreeBSD: src/sys/netinet6/in6_var.h,v 1.3.2.2 2001/07/03 11:01:52 ume Exp $ */
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| 47 | /* $KAME: in6_var.h,v 1.56 2001/03/29 05:34:31 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 | /*
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| 79 | * Copyright (c) 1985, 1986, 1993
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| 80 | * The Regents of the University of California. All rights reserved.
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| 81 | *
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| 82 | * Redistribution and use in source and binary forms, with or without
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| 83 | * modification, are permitted provided that the following conditions
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| 84 | * are met:
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| 85 | * 1. Redistributions of source code must retain the above copyright
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| 86 | * notice, this list of conditions and the following disclaimer.
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| 87 | * 2. Redistributions in binary form must reproduce the above copyright
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| 88 | * notice, this list of conditions and the following disclaimer in the
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| 89 | * documentation and/or other materials provided with the distribution.
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| 90 | * 3. All advertising materials mentioning features or use of this software
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| 91 | * must display the following acknowledgement:
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| 92 | * This product includes software developed by the University of
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| 93 | * California, Berkeley and its contributors.
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| 94 | * 4. Neither the name of the University nor the names of its contributors
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| 95 | * may be used to endorse or promote products derived from this software
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| 96 | * without specific prior written permission.
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| 97 | *
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| 98 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 99 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 100 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 101 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 102 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 103 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 104 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 105 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 106 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 107 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 108 | * SUCH DAMAGE.
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| 109 | *
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| 110 | * @(#)in_var.h 8.1 (Berkeley) 6/10/93
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| 111 | */
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| 112 |
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| 113 | #ifndef _IN6_VAR_H_
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| 114 | #define _IN6_VAR_H_
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| 115 |
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| 116 | #ifdef SUPPORT_INET6
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| 117 |
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| 118 | /*
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| 119 | * ã¢ãã¬ã¹æå¹æéæ§é ä½
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| 120 | */
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| 121 |
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| 122 | typedef struct in6_addr_lifetime {
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| 123 |
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| 124 | /*
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| 125 | * expire 㨠perferred ã¯ãã·ã¹ãã ãèµ·åãã¦ããã®çµéæé
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| 126 | */
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| 127 | uint32_t expire; /* æå¹æéãåããæå» [s] */
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| 128 | uint32_t preferred; /* æ¨å¥¨æå¹æéãåããæå» [s] */
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| 129 |
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| 130 | /*
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| 131 | * vltime 㨠pltime ã¯ã追å /å¤æ´ãã¦ããã®ç¸å¯¾æé
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| 132 | */
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| 133 | uint32_t vltime; /* æå¹æé [ms] */
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| 134 | uint32_t pltime; /* æ¨å¥¨æå¹æé [ms] */
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| 135 | } __attribute__((packed, aligned(2)))T_IN6_ADDR_LIFETIME;
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| 136 |
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| 137 | /*
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| 138 | * ã¤ã³ã¿ãã§ã¼ã¹ã¢ãã¬ã¹æ§é ä½
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| 139 | */
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| 140 |
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| 141 | typedef struct t_in6_ifaddr {
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| 142 | T_IN6_ADDR addr; /* IPv6 ã¢ãã¬ã¹ */
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| 143 | T_IN6_ADDR_LIFETIME lifetime; /* æå¹æé */
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| 144 | uint8_t flags; /* ãã©ã° */
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| 145 | uint8_t prefix_len; /* ãã¬ãã£ãã¯ã¹é· */
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| 146 | uint8_t router_index; /* ã«ã¼ã¿ã¤ã³ããã¯ã¹ */
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| 147 | uint8_t prefix_index; /* ãã¬ãã£ãã¯ã¹ã¤ã³ããã¯ã¹ */
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| 148 | uint8_t na_icount; /* éè¤ã¢ãã¬ã¹æ¤åº (DAD) éç¥ã®å
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| 149 | ¥ååæ° */
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| 150 | uint8_t ns_icount; /* éè¤ã¢ãã¬ã¹æ¤åº (DAD) è¦è«ã®å
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| 151 | ¥ååæ° */
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| 152 | uint8_t ns_ocount; /* éè¤ã¢ãã¬ã¹æ¤åº (DAD) è¦è«ã®åºååæ° */
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| 153 | } __attribute__((packed, aligned(2)))T_IN6_IFADDR;
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| 154 |
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| 155 | /*
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| 156 | * ã¢ãã¬ã¹ç¶æ
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| 157 | ãã©ã°
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| 158 | */
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| 159 |
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| 160 | #define IN6_IFF_ANYCAST UINT_C(0x01) /* ã¨ãã¼ãã£ã¹ã */
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| 161 | #define IN6_IFF_DEFINED UINT_C(0x02) /* å®ç¾©æ¸ã¿ */
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| 162 | #define IN6_IFF_TENTATIVE UINT_C(0x04) /* éè¤æ¤åºä¸ */
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| 163 | #define IN6_IFF_DUPLICATED UINT_C(0x08) /* éè¤ãæ¤åºãã */
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| 164 | #define IN6_IFF_DEPRECATED UINT_C(0x10) /* éæ¨å¥¨ */
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| 165 | #define IN6_IFF_NODAD UINT_C(0x20) /* éè¤æ¤åºä¸è¦ */
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| 166 | #define IN6_IFF_AUTOCONF UINT_C(0x40) /* èªåè¨å®ããã */
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| 167 | #define IN6_IFF_DETACHED UINT_C(0x80) /* éä½¿ç¨ */
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| 168 |
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| 169 | /*
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| 170 | * ã¢ãã¬ã¹ã®æå¹æ§ãã§ãã¯
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| 171 | */
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| 172 |
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| 173 | #define IFA6_IS_READY(a) (((a)->flags & IN6_IFF_DEFINED) != 0 && \
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| 174 | ((a)->flags & (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED|IN6_IFF_DETACHED)) == 0)
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| 175 | #define IFA6_IS_NOTREADY(a) (((a)->flags & IN6_IFF_DEFINED) == 0 || \
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| 176 | ((a)->flags & (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED|IN6_IFF_DETACHED)) != 0)
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| 177 |
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| 178 | #define IFA6_IS_DEPRECATED(a,n) \
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| 179 | ((a)->lifetime.preferred != 0 && (int32_t)((a)->lifetime.preferred - ((n / SYSTIM_HZ))) < 0)
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| 180 |
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| 181 | #define IFA6_IS_INVALID(a,n) \
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| 182 | ((a)->lifetime.expire != 0 && (int32_t)((a)->lifetime.expire - ((n / SYSTIM_HZ))) < 0)
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| 183 |
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| 184 | /*
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| 185 | * ã«ã¼ã¿ã®ã¤ã³ããã¯ã¹
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| 186 | */
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| 187 |
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| 188 | #define IN6_RTR_IX_UNREACH 0xff
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| 189 |
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| 190 | /*
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| 191 | * å¶éå¤
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| 192 | */
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| 193 |
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| 194 | #define IP6_HDR_NEST_LIMIT 50 /* IPv6 ãããã®ãã¹ãå¶éå¤ */
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| 195 |
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| 196 | /*
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| 197 | * ã¢ãã¬ã¹æ
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| 198 | å ±é
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| 199 | åã®ã¤ã³ããã¯ã¹
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| 200 | */
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| 201 |
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| 202 | #define IPV6_IFADDR_IX_LINKLOCAL 0
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| 203 | #define IPV6_IFADDR_IX_INVALID 0xff
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| 204 |
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| 205 | /*
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| 206 | * IPv6 ãã«ããã£ã¹ãã¢ãã¬ã¹é
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| 207 | åã®ã¤ã³ããã¯ã¹
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| 208 | */
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| 209 |
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| 210 | #define IPV6_MADDR_IX_SOL_NODE 0 /* è¦è«ãã«ããã£ã¹ãã»ã¢ãã¬ã¹ */
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| 211 | #define IPV6_MADDR_IX_LL_ALL_NODE 1 /* å
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| 212 | ¨ãã¼ãã»ãªã³ã¯ãã¼ã«ã«ã»ãã«ããã£ã¹ãã¢ãã¬ã¹ */
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| 213 | #define IPV6_MADDR_IX_EXTRA 2
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| 214 |
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| 215 | #define MAX_IN6_MADDR_CNT MAX_IF_MADDR_CNT
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| 216 | /* IPv6 ãã«ããã£ã¹ãã¢ãã¬ã¹é
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| 217 | åã®æ大ãµã¤ãº */
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| 218 |
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| 219 | /*
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| 220 | * ã«ã¼ãã£ã³ã°ã®å¶å¾¡
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| 221 | */
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| 222 |
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| 223 | /* ã«ã¼ãã£ã³ã°è¡¨ã¨ã³ããªæ§é ä½ */
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| 224 |
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| 225 | typedef struct t_in6_rtentry {
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| 226 | T_IN6_ADDR target; /* ç®æ¨ãããã¯ã¼ã¯ã¢ãã¬ã¹ */
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| 227 | T_IN6_ADDR gateway; /* ã²ã¼ãã¦ã§ã¤ã® IP ã¢ãã¬ã¹ */
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| 228 | uint32_t expire; /* æå¹æéãåããæå» [s] */
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| 229 | uint8_t flags; /* ãã©ã° */
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| 230 | uint8_t prefix_len; /* ãã¬ãã£ãã¯ã¹é· */
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| 231 | } __attribute__((packed, aligned(2)))T_IN6_RTENTRY;
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| 232 |
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| 233 | /*
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| 234 | * ãã¹ããã£ãã·ã¥
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| 235 | */
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| 236 |
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| 237 | /* ãã¹ããã£ãã·ã¥æ§é ä½ */
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| 238 |
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| 239 | typedef struct t_in6_hostcache_entry {
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| 240 | T_IN6_ADDR dst; /* ç®æ¨ãããã¯ã¼ã¯ã¢ãã¬ã¹ */
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| 241 | uint32_t expire; /* æå¹æéãåããæå» [s] */
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| 242 | uint32_t mtu; /* Path MTU */
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| 243 | } __attribute__((packed, aligned(2)))T_IN6_HOSTCACHE_ENTRY;
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| 244 |
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| 245 | #define IN6_HOSTCACHE_EXPIRE (60*60*SYSTIM_HZ) /* æå¹æé */
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| 246 | #define IN6_HOSTCACHE_PRUNE (5*60*SYSTIM_HZ) /* æ´æ°éé */
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| 247 | #define IN6_HOSTCACHE_INCREASE (10*60*SYSTIM_HZ) /* å¢å ããå ´åã®ä¿è·æé */
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| 248 |
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| 249 | #define IN6_IS_HOSTCACHE_FREE(e) IN6_IS_ADDR_UNSPECIFIED(&((e)->dst))
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| 250 | #define IN6_IS_HOSTCACHE_BUSY(e) (!IN6_IS_HOSTCACHE_FREE(e))
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| 251 |
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| 252 | /*
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| 253 | * IPv4 㨠IPv6 ãã³ã³ãã¤ã«æã«é¸æããããã®ãã¯ã
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| 254 | */
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| 255 |
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| 256 | #define IN_SET_HEADER(nbuf,len,dst,src,next,hlim) \
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| 257 | in6_set_header(nbuf,len,dst,src,next,hlim)
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| 258 | #define IN_GET_DATAGRAM(nbuf,len,maxlen,dst,src,next,hlim,nbatr,tmout) \
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| 259 | in6_get_datagram(nbuf,len,maxlen,dst,src,next,hlim,nbatr,tmout)
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| 260 | #define IN_CKSUM(nbuf,proto,off,len) in6_cksum(nbuf,proto,off,len)
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| 261 | #define IN_IS_DSTADDR_ACCEPT(myaddr,dstaddr) \
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| 262 | in6_is_dstaddr_accept(myaddr,dstaddr)
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| 263 | #define IN_IFAWITHIFP(ifp,dst) in6_ifawithifp(ifp,dst)
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| 264 | #define T_IN_IFADDR T_IN6_IFADDR
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| 265 | #define T_IN_RTENTRY T_IN6_RTENTRY
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| 266 |
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| 267 | /*
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| 268 | * åæ¹åç
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| 269 | §
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| 270 | */
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| 271 |
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| 272 | #ifndef T_IFNET_DEFINED
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| 273 |
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| 274 | typedef struct t_ifnet T_IFNET;
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| 275 |
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| 276 | #define T_IFNET_DEFINED
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| 277 |
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| 278 | #endif /* of #ifndef T_IFNET_DEFINED */
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| 279 |
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| 280 | /*
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| 281 | * å¤æ°
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| 282 | */
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| 283 |
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| 284 | extern uint32_t linkmtu;
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| 285 |
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| 286 | /*
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| 287 | * é¢æ°
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| 288 | */
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| 289 |
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| 290 | extern void in6_ifainit (void);
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| 291 | extern int_t in6_addr2maix (T_IN6_ADDR *addr);
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| 292 | extern ER in6_update_ifa (T_IFNET *ifp, T_IN6_IFADDR *ia, T_IN6_ADDR *addr,
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| 293 | uint_t prefix_len, uint32_t vltime, uint32_t pltime,
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| 294 | int_t router_index, int_t prefix_index, uint_t flags);
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| 295 | extern ER in6_set_header (T_NET_BUF *nbuf, uint_t len,
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| 296 | T_IN6_ADDR *dstaddr, T_IN6_ADDR *srcaddr,
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| 297 | uint8_t next, uint8_t hlim);
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| 298 | extern ER in6_get_datagram (T_NET_BUF **nbuf, uint_t len, uint_t maxlen,
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| 299 | T_IN6_ADDR *dstaddr, T_IN6_ADDR *srcaddr,
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| 300 | uint8_t next, uint8_t hlim, ATR nbatr, TMO tmout);
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| 301 | extern uint16_t in6_cksum (T_NET_BUF *nbuf, uint8_t proto, uint_t off, uint_t len);
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| 302 | extern T_IN6_IFADDR *in6ifa_ifpwithix (T_IFNET *ifp, int_t ix);
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| 303 | extern T_IN6_IFADDR *in6ifa_ifpwithrtrix (T_IFNET *ifp, int_t rtr_ix);
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| 304 | extern T_IN6_IFADDR *in6_ifawithifp (T_IFNET *ifp, T_IN6_ADDR *dst);
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| 305 | extern void ip6_input (T_NET_BUF *input);
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| 306 | extern T_IN6_IFADDR *in6_lookup_ifaddr (T_IFNET *ifp, T_IN6_ADDR *addr);
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| 307 | extern bool_t in6_lookup_multi (T_IFNET *ifp, T_IN6_ADDR *maddr);
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| 308 | extern bool_t in6_is_dstaddr_accept (T_IN6_ADDR *myaddr, T_IN6_ADDR *dstaddr);
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| 309 | extern T_IN6_ADDR *in6_rtalloc (T_IFNET *ifp, T_IN6_ADDR *dst);
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| 310 | extern int_t in6_if2idlen (T_IFNET *ifp);
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| 311 | extern int_t in6_addr2ifaix (T_IN6_ADDR *addr);
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| 312 | extern void in6_plen2pmask (T_IN6_ADDR *mask, uint_t prefix_len);
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| 313 | extern bool_t in6_are_prefix_equal (T_IN6_ADDR *addr, T_IN6_ADDR *prefix,
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| 314 | uint_t prefix_len);
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| 315 | extern void in6_ifaddr_timer (T_IFNET *ifp);
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| 316 | extern T_IN6_RTENTRY *in6_gateway_lookup (T_IN6_ADDR *src);
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| 317 | extern void in6_rtredirect (T_IN6_ADDR *gateway, T_IN6_ADDR *target,
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| 318 | uint_t prefix_len, uint8_t flags, uint32_t tmo);
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| 319 | extern void in6_init (void);
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| 320 | extern void in6_if_up (T_IFNET *ifp);
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| 321 | extern void in6_hostcache_update (T_IN6_ADDR *dst, uint32_t mtu);
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| 322 | extern uint32_t in6_hostcache_getmtu (T_IN6_ADDR *dst);
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| 323 | extern uint_t in6_addrscope (T_IN6_ADDR *addr);
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| 324 | extern const T_NET_BUF**ip6_get_frag_queue (void);
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| 325 |
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| 326 | #endif /* of #ifdef SUPPORT_INET6 */
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| 327 |
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| 328 | #endif /* of #ifndef _IN6_VAR_H_ */
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