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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