| [270] | 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: ip6.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/netinet/ip6.h,v 1.2.2.2 2001/07/03 11:01:46 ume Exp $ */
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| 47 | /* $KAME: ip6.h,v 1.18 2001/03/29 05:34:30 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) 1982, 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 | * @(#)ip.h 8.1 (Berkeley) 6/10/93
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| 111 | */
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| 112 |
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| 113 | #ifndef _IP6_H_
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| 114 | #define _IP6_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 | * IPv6 ã®å®ç¾©ãRFC2460 åç
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| 120 | §
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| 121 | */
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| 122 |
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| 123 | #define IPV6_VERSION 6
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| 124 |
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| 125 | /*
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| 126 | * IPv6 ãããã®å®ç¾©
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| 127 | */
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| 128 |
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| 129 | typedef struct t_ip6_hdr {
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| 130 | uint32_t vcf; /* Version: 4 bit */
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| 131 | /* Traffic Class: 8 bit */
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| 132 | /* Flow Label: 20 bit */
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| 133 | uint16_t plen; /* Payload Length */
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| 134 | uint8_t next; /* Next Header */
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| 135 | uint8_t hlim; /* Hop Limit */
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| 136 | T_IN6_ADDR src; /* Source Address */
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| 137 | T_IN6_ADDR dst; /* Destination Address */
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| 138 | } __attribute__((packed, aligned(2)))T_IP6_HDR;
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| 139 |
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| 140 | #define IP6_HDR_SIZE (sizeof(T_IP6_HDR))
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| 141 |
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| 142 | /*
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| 143 | * IPv6 ãããæ§é ä½ã¡ã³ãã¢ã¯ã»ã¹ãã¯ã
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| 144 | */
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| 145 |
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| 146 | #define IP6_MAKE_VCF(v,cf) (((uint32_t)(v)<<28)|(cf))
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| 147 | #define IP6_VCF_V(vcf) ((uint32_t)(vcf)>>28)
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| 148 | #define IP6_VCF_C(vcf) (((uint32_t)(vcf)>>20)&ULONG_C(0xff))
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| 149 | #define IP6_VCF_F(vcf) ((uint32_t)(vcf)&ULONG_C(0x000fffff))
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| 150 | #define IP6_VCF_CF(vcf) ((uint32_t)(vcf)&ULONG_C(0x0fffffff))
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| 151 |
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| 152 | /*
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| 153 | * æ¡å¼µããã
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| 154 | */
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| 155 |
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| 156 | typedef struct t_ip6_ext_hdr {
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| 157 | uint8_t next; /* Next Header */
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| 158 | uint8_t len; /* 8 ãªã¯ãããåä½ã®é·ã */
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| 159 | } __attribute__((packed, aligned(2)))T_IP6_EXT_HDR;
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| 160 |
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| 161 | /*
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| 162 | * ä¸ç¶ç¹ (Hop-by-Hop) ãªãã·ã§ã³ããã
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| 163 | */
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| 164 |
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| 165 | typedef struct t_ip6_hbh_hdr {
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| 166 | uint8_t next; /* Next Header */
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| 167 | uint8_t len; /* 8 ãªã¯ãããåä½ã®é·ãããã ãã
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| 168 | * ãã®ãªãã·ã§ã³ãããå
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| 169 | ¨ä½ã®ãªã¯ãããæ°ã
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| 170 | * 8 ã§å²ã£ãå¤ã® - 1 ãå
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| 171 | ¥ãã
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| 172 | */
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| 173 | } __attribute__((packed, aligned(2)))T_IP6_HBH_HDR;
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| 174 |
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| 175 | /*
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| 176 | * çµç¹ (Destination) ãªãã·ã§ã³ããã
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| 177 | */
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| 178 |
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| 179 | typedef struct t_ip6_dest_hdr {
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| 180 | uint8_t next; /* Next Header */
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| 181 | uint8_t len; /* 8 ãªã¯ãããåä½ã®é·ãããã ãã
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| 182 | * ãã®ãªãã·ã§ã³ãããå
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| 183 | ¨ä½ã®ãªã¯ãããæ°ã
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| 184 | * 8 ã§å²ã£ãå¤ã® - 1 ãå
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| 185 | ¥ãã
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| 186 | */
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| 187 | } __attribute__((packed, aligned(2)))T_IP6_DEST_HDR;
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| 188 |
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| 189 | /* ä¸ç¶ç¹ (Hop-by-Hop) ãªãã·ã§ã³ */
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| 190 |
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| 191 | #define IP6OPT_PAD1 UINT_C(0x00) /* 00 0 00000 */
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| 192 | #define IP6OPT_PADN UINT_C(0x01) /* 00 0 00001 */
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| 193 | #define IP6OPT_JUMBO UINT_C(0xc2) /* 11 0 00010 */
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| 194 | #define IP6OPT_NSAP_ADDR UINT_C(0xc3) /* 11 0 00011 */
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| 195 | #define IP6OPT_TUNNEL_LIMIT UINT_C(0x04) /* 00 0 00100 */
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| 196 | #define IP6OPT_RTR_ALERT UINT_C(0x05) /* 00 0 00101 */
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| 197 |
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| 198 | #define IP6OPT_MINLEN 2 /* ãªãã·ã§ã³ã®æçé· */
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| 199 |
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| 200 | /* æªç¥ã®ãªãã·ã§ã³ã®å¦çã®æå® */
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| 201 |
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| 202 | #define IP6OPT_TYPE_SKIP UINT_C(0x00) /* ç¡è¦ããã */
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| 203 | #define IP6OPT_TYPE_DISCARD UINT_C(0x40) /* ãã¼ã¿ã°ã©ã ãç ´æ£ããã */
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| 204 | #define IP6OPT_TYPE_FORCEICMP UINT_C(0x80) /* ç ´æ£ãã¦ãICMP ãè¿éããã */
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| 205 | #define IP6OPT_TYPE_ICMP UINT_C(0xc0)
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| 206 | /* ç ´æ£ãã¦ããã«ããã£ã¹ãã§ãªããã° ICMP ãè¿éããã */
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| 207 |
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| 208 | #define IP6OPT_TYPE(o) ((o)&UINT_C(0xc0))
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| 209 |
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| 210 | /*
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| 211 | * çµè·¯å¶å¾¡ããã
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| 212 | */
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| 213 |
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| 214 | typedef struct t_ip6_rt_hdr {
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| 215 | uint8_t next; /* Next Header */
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| 216 | uint8_t len; /* 8 ãªã¯ãããåä½ã®é·ãããã ãã
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| 217 | * ãã®ãªãã·ã§ã³ãããå
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| 218 | ¨ä½ã®ãªã¯ãããæ°ã
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| 219 | * 8 ã§å²ã£ãå¤ã® - 1 ãå
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| 220 | ¥ãã
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| 221 | */
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| 222 | uint8_t type; /* çµè·¯å¶å¾¡ã¿ã¤ã */
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| 223 | uint8_t segleft; /* ã»ã°ã¡ã³ãã®æ®ã */
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| 224 | } __attribute__((packed, aligned(2)))T_IP6_RT_HDR;
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| 225 |
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| 226 | /*
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| 227 | * ã¿ã¤ã 0 çµè·¯å¶å¾¡ããã
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| 228 | */
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| 229 |
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| 230 | typedef struct t_ip6_rt0_hdr {
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| 231 | uint8_t next; /* Next Header */
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| 232 | uint8_t len; /* 8 ãªã¯ãããåä½ã®é·ãããã ãã
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| 233 | * ãã®ãªãã·ã§ã³ãããå
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| 234 | ¨ä½ã®ãªã¯ãããæ°ã
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| 235 | * 8 ã§å²ã£ãå¤ã® - 1 ãå
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| 236 | ¥ãã
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| 237 | */
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| 238 | uint8_t type; /* çµè·¯å¶å¾¡ã¿ã¤ã */
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| 239 | uint8_t segleft; /* ã»ã°ã¡ã³ãã®æ®ã */
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| 240 | uint32_t reserved; /* äºç´ */
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| 241 | } __attribute__((packed, aligned(2)))T_IP6_RT0_HDR;
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| 242 |
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| 243 | /*
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| 244 | * æçããã
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| 245 | */
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| 246 |
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| 247 | typedef struct t_ip6_frag_hdr {
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| 248 | uint8_t next; /* Next Header */
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| 249 | uint8_t reserved;
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| 250 | uint16_t off_flag; /* ãªãã»ããã¨ãã©ã° */
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| 251 | uint32_t ident; /* åå²èå¥å */
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| 252 | } __attribute__((packed, aligned(2)))T_IP6_FRAG_HDR;
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| 253 |
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| 254 | /* æçãããã®ãªãã»ããã¨ãã©ã° */
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| 255 |
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| 256 | #ifdef _NET_CFG_BYTE_ORDER
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| 257 |
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| 258 | #if _NET_CFG_BYTE_ORDER == _NET_CFG_BIG_ENDIAN
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| 259 |
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| 260 | #define IP6F_OFF_MASK UINT_C(0xfff8) /* ãªãã»ãããååºããã¹ã¯ */
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| 261 | #define IP6F_RESERVED_MASK UINT_C(0x0006) /* äºç´ãååºããã¹ã¯ */
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| 262 | #define IP6F_MORE_FRAG UINT_C(0x0001) /* ä¸éãã©ã°ã¡ã³ã */
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| 263 |
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| 264 | #elif _NET_CFG_BYTE_ORDER == _NET_CFG_LITTLE_ENDIAN
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| 265 |
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| 266 | #define IP6F_OFF_MASK UINT_C(0xf8ff) /* ãªãã»ãããååºããã¹ã¯ */
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| 267 | #define IP6F_RESERVED_MASK UINT_C(0x0600) /* äºç´ãååºããã¹ã¯ */
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| 268 | #define IP6F_MORE_FRAG UINT_C(0x0100) /* ä¸éãã©ã°ã¡ã³ã */
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| 269 |
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| 270 | #endif /* #if _NET_CFG_BYTE_ORDER == _NET_CFG_BIG_ENDIAN */
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| 271 |
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| 272 | #endif /* of #ifdef _NET_CFG_BYTE_ORDER */
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| 273 |
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| 274 | /*
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| 275 | * å¶éå¤
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| 276 | */
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| 277 |
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| 278 | #define IPV6_MAXHLIM UINT_C(255) /* ããããªãããã®æå¤§å¤ */
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| 279 | #define IPV6_DEFHLIM UINT_C(64) /* ããããªãããã®è¦å®å¤ */
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| 280 | #define IPV6_FRAGTTL UINT_C(60) /* åå²ããããã¼ã¿ã°ã©ã ã®çåæéï¼ç§ï¼ */
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| 281 | #define IPV6_MMTU UINT_C(1280) /* æå° MTUããã¤ãã¼ã (1024) + ããã (256) */
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| 282 | #define IPV6_MAXPACKET UINT_C(65535) /* ã¸ã£ã³ããã¤ãã¼ããé¤ãæ大ãã±ãããµã¤ãº */
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| 283 |
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| 284 | /*
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| 285 | * IPv4 㨠IPv6 ãã³ã³ãã¤ã«æã«é¸æããããã®ãã¯ã
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| 286 | */
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| 287 |
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| 288 | /*
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| 289 | * ããããªãããã®è¦å®å¤ã¯ãã«ã¼ã¿éç¥ã«ããå¤æ´ããããã¨ããã
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| 290 | */
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| 291 |
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| 292 | #if NUM_ND6_DEF_RTR_ENTRY > 0
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| 293 |
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| 294 | /* ã«ã¼ã¿éç¥ãåä¿¡ããå ´åã¯ãéç¥ãããå¤ */
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| 295 |
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| 296 | #define IP_DEFTTL ip6_defhlim
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| 297 |
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| 298 | #else /* #if NUM_ND6_DEF_RTR_ENTRY > 0 */
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| 299 |
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| 300 | /* ã«ã¼ã¿éç¥ãåä¿¡ããªãå ´åã®å¤ã¯æ¢å®å¤ */
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| 301 |
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| 302 | #define IP_DEFTTL IPV6_DEFHLIM
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| 303 |
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| 304 | #endif /* #if NUM_ND6_DEF_RTR_ENTRY > 0 */
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| 305 |
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| 306 | #define IP_HDR_SIZE IP6_HDR_SIZE
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| 307 | #define T_IP_HDR T_IP6_HDR
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| 308 |
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| 309 | #endif /* of #ifdef SUPPORT_INET6 */
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| 310 |
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| 311 | #endif /* of #ifndef _IP6_H_ */
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