[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: in6.c 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.c,v 1.21 2002/04/19 04:46:22 suz Exp $ */
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| 47 | /* $KAME: in6.c,v 1.259 2002/01/21 11:37:50 keiichi 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, 1991, 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.c 8.2 (Berkeley) 11/15/93
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| 111 | */
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| 112 |
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| 113 | #include <string.h>
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| 114 |
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| 115 | #ifdef TARGET_KERNEL_ASP
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| 116 |
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| 117 | #include <kernel.h>
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| 118 | #include <sil.h>
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| 119 |
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| 120 | #endif /* of #ifdef TARGET_KERNEL_ASP */
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| 121 |
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| 122 | #ifdef TARGET_KERNEL_JSP
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| 123 |
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| 124 | #include <s_services.h>
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| 125 | #include <t_services.h>
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| 126 | #include "kernel_id.h"
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| 127 |
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| 128 | #endif /* of #ifdef TARGET_KERNEL_JSP */
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| 129 |
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| 130 | #include <tinet_defs.h>
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| 131 | #include <tinet_config.h>
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| 132 |
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| 133 | #include <net/if.h>
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| 134 | #include <net/if_types.h>
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| 135 | #include <net/if_ppp.h>
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| 136 | #include <net/if_loop.h>
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| 137 | #include <net/ethernet.h>
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| 138 | #include <net/ppp_ipcp.h>
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| 139 | #include <net/net.h>
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| 140 | #include <net/net_buf.h>
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| 141 | #include <net/net_timer.h>
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| 142 | #include <net/net_count.h>
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| 143 |
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| 144 | #include <netinet6/in6.h>
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| 145 | #include <netinet6/in6_var.h>
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| 146 | #include <netinet6/nd6.h>
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| 147 | #include <netinet6/in6_ifattach.h>
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| 148 |
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| 149 | #include <net/if6_var.h>
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| 150 |
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| 151 | #ifdef SUPPORT_INET6
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| 152 |
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| 153 | /*
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| 154 | * å
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| 155 | ¨åå¤æ°
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| 156 | */
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| 157 |
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| 158 | T_IN6_ADDR in6_addr_unspecified =
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| 159 | IPV6_ADDR_UNSPECIFIED_INIT;
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| 160 |
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| 161 | T_IN6_ADDR in6_addr_linklocal_allnodes =
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| 162 | IPV6_ADDR_LINKLOCAL_ALLNODES_INIT;
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| 163 |
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| 164 | T_IN6_ADDR in6_addr_linklocal_allrouters =
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| 165 | IPV6_ADDR_LINKLOCAL_ALLROUTERS_INIT;
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| 166 |
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| 167 | /*
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| 168 | * in6_addmulti -- ãã«ããã£ã¹ãã¢ãã¬ã¹ãç»é²ããã
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| 169 | */
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| 170 |
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| 171 | static ER
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| 172 | in6_addmulti (T_IFNET *ifp, T_IN6_ADDR *maddr)
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| 173 | {
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| 174 | ER error = E_OK;
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| 175 |
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| 176 | if ((error = if_addmulti(ifp, maddr, AT_INET6)) != E_OK)
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| 177 | return error;
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| 178 |
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| 179 | return error;
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| 180 | }
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| 181 |
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| 182 | /*
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| 183 | * in6_ifinit -- ã¤ã³ã¿ãã§ã¼ã¹ã«ã¢ãã¬ã¹æ
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| 184 | å ±ãè¨å®ããåæåããã
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| 185 | */
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| 186 |
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| 187 | static ER
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| 188 | in6_ifinit (T_IFNET *ifp, T_IN6_IFADDR *ia, T_IN6_ADDR *addr, uint_t prefix_len)
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| 189 | {
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| 190 | /* ã¢ãã¬ã¹ã¨ãã¬ãã£ãã¯ã¹é·ãè¨å®ããã*/
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| 191 | ia->addr = *addr;
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| 192 | ia->prefix_len = prefix_len;
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| 193 |
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| 194 | /* ãã©ã°ãåæåããã*/
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| 195 | ia->flags = 0;
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| 196 |
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| 197 | /*
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| 198 | * åãã¦ã¢ãã¬ã¹ãè¨å®ãããã¨ããã¤ã³ã¿ãã§ã¼ã¹ç¬èªã®åæåãè¡ãã
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| 199 | */
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| 200 |
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| 201 | return E_OK;
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| 202 | }
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| 203 |
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| 204 | /*
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| 205 | * in6_ifainit -- ã¤ã³ã¿ãã§ã¼ã¹ã¢ãã¬ã¹æ§é ä½ã®åæå
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| 206 | */
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| 207 |
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| 208 | void
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| 209 | in6_ifainit (void)
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| 210 | {
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| 211 | T_IN6_IFADDR *ia = NULL;
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| 212 | T_IFNET *ifp = IF_GET_IFNET();
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| 213 | int_t ix;
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| 214 |
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| 215 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; ) {
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| 216 | ia = &ifp->in_ifaddrs[ix];
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| 217 | memset(ia, sizeof(T_IN6_IFADDR), 0);
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| 218 | ia->router_index = IN6_RTR_IX_UNREACH;
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| 219 | ia->prefix_index = ND6_PREFIX_IX_INVALID;
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| 220 | }
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| 221 | }
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| 222 |
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| 223 | /*
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| 224 | * in6_if2idlen -- ã¤ã³ã¿ãã§ã¼ã¹ ID é·ãè¿ãã
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| 225 | */
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| 226 |
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| 227 | int_t
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| 228 | in6_if2idlen (T_IFNET *ifp)
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| 229 | {
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| 230 | #if IF_TYPE == IFT_ETHER
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| 231 | return 64;
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| 232 | #else
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| 233 | return 64;
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| 234 | #endif
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| 235 | }
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| 236 |
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| 237 | /*
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| 238 | * in6_addr2ifaix -- ã¢ãã¬ã¹ããã¤ã³ã¿ãã§ã¼ã¹ã¢ãã¬ã¹æ
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| 239 | å ±ã®ã¤ã³ããã¯ã¹ã«å¤æããã
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| 240 | */
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| 241 |
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| 242 | int_t
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| 243 | in6_addr2ifaix (T_IN6_ADDR *addr)
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| 244 | {
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| 245 | T_IFNET *ifp = IF_GET_IFNET();
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| 246 | T_IN6_IFADDR *ia;
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| 247 | int_t ix;
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| 248 |
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| 249 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; ) {
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| 250 | ia = &ifp->in_ifaddrs[ix];
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| 251 | if ((ia->flags & IN6_IFF_DEFINED) != 0 &&
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| 252 | in6_are_prefix_equal(addr, &ia->addr, ia->prefix_len))
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| 253 | return ix;
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| 254 | }
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| 255 |
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| 256 | return IPV6_IFADDR_IX_INVALID;
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| 257 | }
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| 258 |
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| 259 | /*
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| 260 | * in6_addr2maix -- ã¢ãã¬ã¹ãããã«ããã£ã¹ãã¢ãã¬ã¹ã®ã¤ã³ããã¯ã¹ã«å¤æããã
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| 261 | */
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| 262 |
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| 263 | int_t
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| 264 | in6_addr2maix (T_IN6_ADDR *addr)
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| 265 | {
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| 266 | if (addr->s6_addr8[0] == 0xff) {
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| 267 | if (addr->s6_addr8[1] == 0x02) {
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| 268 | if (addr->s6_addr8[11] == 0x01 && addr->s6_addr8[12] == 0xff)
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| 269 | return IPV6_MADDR_IX_SOL_NODE;
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| 270 | else
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| 271 | return IPV6_MADDR_IX_LL_ALL_NODE;
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| 272 | }
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| 273 | else
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| 274 | return IPV6_MADDR_IX_EXTRA;
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| 275 | }
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| 276 | else
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| 277 | return IPV6_MADDR_IX_EXTRA;
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| 278 | }
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| 279 |
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| 280 | /*
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| 281 | * in6_update_ifa -- ã¤ã³ã¿ãã§ã¼ã¹ã®ã¢ãã¬ã¹æ
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| 282 | å ±ãæ´æ°ããã
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| 283 | */
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| 284 |
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| 285 | ER
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| 286 | in6_update_ifa (T_IFNET *ifp, T_IN6_IFADDR *ia, T_IN6_ADDR *addr,
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| 287 | uint_t prefix_len, uint32_t vltime, uint32_t pltime,
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| 288 | int_t router_index, int_t prefix_index, uint_t flags)
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| 289 | {
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| 290 | T_IN6_ADDR llsol;
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| 291 | ER error = E_OK;
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| 292 | SYSTIM now;
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| 293 |
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| 294 | /* å¼æ°ããã§ãã¯ããã*/
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| 295 | if (addr == NULL)
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| 296 | return E_PAR;
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| 297 |
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| 298 | /*
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| 299 | * æå¹æéããã§ãã¯ããã
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| 300 | * vltime (æå¹æé) 㨠pltime (æ¨å¥¨æå¹æé) ã®åä½ã¯ [s]ã
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| 301 | */
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| 302 | syscall(get_tim(&now));
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| 303 | now /= SYSTIM_HZ;
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| 304 |
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| 305 | if (((vltime != ND6_INFINITE_LIFETIME) && (vltime + now < now)) || vltime == 0)
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| 306 | return E_PAR;
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| 307 |
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| 308 | if ((pltime != ND6_INFINITE_LIFETIME) && (pltime + now < now))
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| 309 | return E_PAR;
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| 310 |
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| 311 | /* ã¤ã³ã¿ãã§ã¼ã¹ãåæåããã*/
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| 312 | if ((error = in6_ifinit(ifp, ia, addr, prefix_len)) != E_OK)
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| 313 | return error;
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| 314 |
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| 315 | if (IN6_IS_ADDR_LINKLOCAL(addr)) {
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| 316 |
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| 317 | /* è¦è«ãã«ããã£ã¹ãã¢ãã¬ã¹ãç»é²ããã*/
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| 318 | llsol.s6_addr32[0] = IPV6_ADDR_INT32_MLL;
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| 319 | llsol.s6_addr32[1] = 0x00000000;
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| 320 | llsol.s6_addr32[2] = IPV6_ADDR_INT32_ONE;
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| 321 | llsol.s6_addr32[3] = addr->s6_addr32[3];
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| 322 | llsol.s6_addr8[12] = 0xff;
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| 323 | if ((error = in6_addmulti(ifp, &llsol)) != E_OK)
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| 324 | return error;
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| 325 |
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| 326 | /* å
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| 327 | ¨ãã¼ãã»ãªã³ã¯ãã¼ã«ã«ã»ãã«ããã£ã¹ãã¢ãã¬ã¹ãç»é²ããã*/
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| 328 | llsol.s6_addr32[2] = 0x00000000;
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| 329 | llsol.s6_addr32[3] = IPV6_ADDR_INT32_ONE;
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| 330 | if ((error = in6_addmulti(ifp, &llsol)) != E_OK)
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| 331 | return error;
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| 332 |
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| 333 | }
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| 334 |
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| 335 | /* ã«ã¼ã¿ã¤ã³ããã¯ã¹ãè¨å®ããã*/
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| 336 | ia->router_index = router_index;
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| 337 |
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| 338 | /* ãã¬ãã£ãã¯ã¹ã¤ã³ããã¯ã¹ãè¨å®ããã*/
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| 339 | ia->prefix_index = prefix_index;
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| 340 |
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| 341 | /* ãã©ã°ãè¨å®ããã*/
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| 342 | ia->flags = flags & ~(IN6_IFF_DUPLICATED | IN6_IFF_NODAD);
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| 343 | ia->flags |= IN6_IFF_DEFINED;
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| 344 |
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| 345 | /*
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| 346 | * ã¢ãã¬ã¹æå¹æéãè¨å®ããã
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| 347 | * vltime (æå¹æé) 㨠pltime (æ¨å¥¨æå¹æé) ã®åä½ã¯ [s]ã
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| 348 | */
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| 349 | syscall(get_tim(&now));
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| 350 | now /= SYSTIM_HZ;
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| 351 |
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| 352 | ia->lifetime.vltime = vltime;
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| 353 | if (vltime != ND6_INFINITE_LIFETIME)
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| 354 | ia->lifetime.expire = now + vltime;
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| 355 | else
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| 356 | ia->lifetime.expire = 0;
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| 357 |
|
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| 358 | ia->lifetime.pltime = pltime;
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| 359 | if (pltime != ND6_INFINITE_LIFETIME)
|
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| 360 | ia->lifetime.preferred = now + pltime;
|
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| 361 | else
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| 362 | ia->lifetime.preferred = 0;
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| 363 |
|
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| 364 | /* è¿é£æ¢ç´¢ã®åæè¨å®ãè¡ãã*/
|
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| 365 | nd6_ifattach(ifp);
|
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| 366 |
|
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| 367 | /* éè¤ã¢ãã¬ã¹æ¤åºãè¡ãã*/
|
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| 368 | if ((flags & IN6_IFF_NODAD) == 0) {
|
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| 369 | ia->flags |= IN6_IFF_TENTATIVE;
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| 370 | nd6_dad_start(ifp, ia, NULL);
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| 371 | }
|
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| 372 |
|
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| 373 | return error;
|
---|
| 374 | }
|
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| 375 |
|
---|
| 376 | /*
|
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| 377 | * in6ifa_ifpwithix -- ã¤ã³ããã¯ã¹çªå·ããããããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ã«
|
---|
| 378 | * å²ãå½ã¦ããã¦ããã¢ãã¬ã¹ãæ¢ç´¢ããã
|
---|
| 379 | */
|
---|
| 380 |
|
---|
| 381 | T_IN6_IFADDR *
|
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| 382 | in6ifa_ifpwithix (T_IFNET *ifp, int_t ix)
|
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| 383 | {
|
---|
| 384 | return ix < NUM_IN6_IFADDR_ENTRY? &ifp->in_ifaddrs[ix] : NULL;
|
---|
| 385 | }
|
---|
| 386 |
|
---|
| 387 | /*
|
---|
| 388 | * in6ifa_ifpwithrtrix -- ã«ã¼ã¿ã®ã¤ã³ããã¯ã¹çªå·ããããããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ã«
|
---|
| 389 | * å²ãå½ã¦ããã¦ããã¢ãã¬ã¹ãæ¢ç´¢ããã
|
---|
| 390 | */
|
---|
| 391 |
|
---|
| 392 | T_IN6_IFADDR *
|
---|
| 393 | in6ifa_ifpwithrtrix (T_IFNET *ifp, int_t router_index)
|
---|
| 394 | {
|
---|
| 395 | int_t ix;
|
---|
| 396 |
|
---|
| 397 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; )
|
---|
| 398 | if (ifp->in_ifaddrs[ix].router_index == router_index)
|
---|
| 399 | return &ifp->in_ifaddrs[ix];
|
---|
| 400 | return NULL;
|
---|
| 401 | }
|
---|
| 402 |
|
---|
| 403 | /*
|
---|
| 404 | * in6_ifawithifp -- å®å
|
---|
| 405 | ã¢ãã¬ã¹ã«ãµããããéä¿¡å
|
---|
| 406 | ã¢ãã¬ã¹ãã
|
---|
| 407 | * ãããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ããæ¢ç´¢ããã
|
---|
| 408 | */
|
---|
| 409 |
|
---|
| 410 | T_IN6_IFADDR *
|
---|
| 411 | in6_ifawithifp (T_IFNET *ifp, T_IN6_ADDR *dst)
|
---|
| 412 | {
|
---|
| 413 | uint_t scope;
|
---|
| 414 | int_t ix;
|
---|
| 415 |
|
---|
| 416 | /* å®å
|
---|
| 417 | ã¢ãã¬ã¹ã¨åãã¹ã³ã¼ãã®ã¢ãã¬ã¹ãè¿ãã*/
|
---|
| 418 | if ((ix = in6_addr2ifaix(dst)) != IPV6_IFADDR_IX_INVALID)
|
---|
| 419 | return &ifp->in_ifaddrs[ix];
|
---|
| 420 | else if ((ix = in6_addr2maix(dst)) == IPV6_MADDR_IX_SOL_NODE ||
|
---|
| 421 | ix == IPV6_MADDR_IX_LL_ALL_NODE)
|
---|
| 422 | return &ifp->in_ifaddrs[IPV6_IFADDR_IX_LINKLOCAL];
|
---|
| 423 | else {
|
---|
| 424 | scope = in6_addrscope(dst);
|
---|
| 425 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; ) {
|
---|
| 426 | if ((ifp->in_ifaddrs[ix].flags & IN6_IFF_DEFINED) &&
|
---|
| 427 | (ifp->in_ifaddrs[ix].flags & IN6_IFF_DETACHED) == 0 &&
|
---|
| 428 | in6_addrscope(&ifp->in_ifaddrs[ix].addr) == scope) {
|
---|
| 429 | return &ifp->in_ifaddrs[ix];
|
---|
| 430 | }
|
---|
| 431 | }
|
---|
| 432 | return NULL;
|
---|
| 433 | }
|
---|
| 434 | }
|
---|
| 435 |
|
---|
| 436 | /*
|
---|
| 437 | * in6_if_up -- ã¤ã³ã¿ãã§ã¼ã¹èµ·åå¾ã®éè¤ã¢ãã¬ã¹æ¤åºãè¡ãã
|
---|
| 438 | */
|
---|
| 439 |
|
---|
| 440 | void
|
---|
| 441 | in6_if_up (T_IFNET *ifp)
|
---|
| 442 | {
|
---|
| 443 | #if 0 /* ä¿ç */
|
---|
| 444 | int_t dad_delay, ix;
|
---|
| 445 | #endif /* of #if 0 */
|
---|
| 446 |
|
---|
| 447 | in6_ifattach(ifp);
|
---|
| 448 |
|
---|
| 449 | #if 0 /* ä¿ç */
|
---|
| 450 | /* éè¤ã¢ãã¬ã¹æ¤åºãè¡ãã*/
|
---|
| 451 | dad_delay = 0;
|
---|
| 452 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; )
|
---|
| 453 | if ((ifp->in_ifaddrs[ix].flags & IN6_IFF_DEFINED) &&
|
---|
| 454 | (ifp->in_ifaddrs[ix].flags & IN6_IFF_TENTATIVE))
|
---|
| 455 | nd6_dad_start(ifp, &ifp->in_ifaddrs[ix], &dad_delay);
|
---|
| 456 | #endif /* of #if 0 */
|
---|
| 457 |
|
---|
| 458 | #if NUM_ND6_RTR_SOL_RETRY > 0
|
---|
| 459 |
|
---|
| 460 | /* ã«ã¼ã¿è¦è«ãåºåããã*/
|
---|
| 461 | nd6_rtrsol_ctl();
|
---|
| 462 |
|
---|
| 463 | #endif /* of #if NUM_ND6_RTR_SOL_RETRY > 0 */
|
---|
| 464 | }
|
---|
| 465 |
|
---|
| 466 | /*
|
---|
| 467 | * in6_are_prefix_equal -- ãã¬ãã£ãã¯ã¹ãåä¸ã調ã¹ãã
|
---|
| 468 | */
|
---|
| 469 |
|
---|
| 470 | bool_t
|
---|
| 471 | in6_are_prefix_equal (T_IN6_ADDR *addr, T_IN6_ADDR *prefix, uint_t prefix_len)
|
---|
| 472 | {
|
---|
| 473 | uint_t bitlen, bytelen;
|
---|
| 474 |
|
---|
| 475 | bytelen = prefix_len / 8;
|
---|
| 476 | if (memcmp(&addr->s6_addr, &prefix->s6_addr, bytelen))
|
---|
| 477 | return false;
|
---|
| 478 |
|
---|
| 479 | bitlen = prefix_len % 8;
|
---|
| 480 | if ( addr->s6_addr[bytelen] >> (8 - bitlen) !=
|
---|
| 481 | prefix->s6_addr[bytelen] >> (8 - bitlen))
|
---|
| 482 | return false;
|
---|
| 483 |
|
---|
| 484 | return true;
|
---|
| 485 | }
|
---|
| 486 |
|
---|
| 487 | /*
|
---|
| 488 | * in6_ifaddr_timer -- ãããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ã®ã¢ãã¬ã¹ã®ç®¡çã¿ã¤ãã¼
|
---|
| 489 | */
|
---|
| 490 |
|
---|
| 491 | void
|
---|
| 492 | in6_ifaddr_timer (T_IFNET *ifp)
|
---|
| 493 | {
|
---|
| 494 | T_IN6_IFADDR *ia;
|
---|
| 495 | SYSTIM now;
|
---|
| 496 | int_t ix;
|
---|
| 497 |
|
---|
| 498 | syscall(get_tim(&now));
|
---|
| 499 | for (ix = NUM_IN6_IFADDR_ENTRY; ix -- > 0; ) {
|
---|
| 500 | ia = &ifp->in_ifaddrs[ix];
|
---|
| 501 |
|
---|
| 502 | if ((ia->flags & IN6_IFF_DEFINED) == 0)
|
---|
| 503 | ;
|
---|
| 504 | else if (IFA6_IS_INVALID(ia, now)) {
|
---|
| 505 |
|
---|
| 506 | /*
|
---|
| 507 | * æå¹æéãéããã®ã§åé¤ããã
|
---|
| 508 | */
|
---|
| 509 | ia->flags &= ~IN6_IFF_DEFINED;
|
---|
| 510 | }
|
---|
| 511 |
|
---|
| 512 | else if (IFA6_IS_DEPRECATED(ia, now)) {
|
---|
| 513 |
|
---|
| 514 | /*
|
---|
| 515 | * æ¨å¥¨æå¹æéãéããã®ã§éæ¨å¥¨ã«ããã
|
---|
| 516 | */
|
---|
| 517 | ia->flags |= IN6_IFF_DEPRECATED;
|
---|
| 518 | }
|
---|
| 519 | }
|
---|
| 520 | }
|
---|
| 521 |
|
---|
| 522 | #endif /* of #ifdef SUPPORT_INET6 */
|
---|