| 1 | /*
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| 2 | * TINET (TCP/IP Protocol Stack)
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| 3 | *
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| 4 | * Copyright (C) 2001-2017 by Dep. of Computer Science and Engineering
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| 5 | * Tomakomai National College of Technology, JAPAN
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| 6 | *
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| 7 | * ä¸è¨èä½æ¨©è
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| 8 | ã¯ï¼ä»¥ä¸ã® (1)ï½(4) ã®æ¡ä»¶ãï¼Free Software Foundation
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| 9 | * ã«ãã£ã¦å
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| 10 | ¬è¡¨ããã¦ãã GNU General Public License ã® Version 2 ã«è¨
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| 11 | * è¿°ããã¦ããæ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§ã¢ï¼æ¬ã½ããã¦ã§ã¢
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| 12 | * ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹å¤ã»åé
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| 13 | å¸ï¼ä»¥ä¸ï¼
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| 14 | * å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 15 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 16 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
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| 17 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 18 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 19 | * ç¨ã§ããå½¢ã§åé
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| 20 | å¸ããå ´åã«ã¯ï¼åé
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| 21 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 22 | * è
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| 23 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 24 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 25 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 26 | * ç¨ã§ããªãå½¢ã§åé
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| 27 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®æ¡ä»¶ãæºãããã¨ï¼
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| 28 | * (a) åé
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| 29 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 30 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 31 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 32 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 33 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 34 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 35 | 責ãããã¨ï¼
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| 36 | *
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| 37 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 38 | ã
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| 39 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ãã®é©ç¨å¯è½æ§ã
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| 40 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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| 41 | * æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ãã®è²¬ä»»ãè² ããªãï¼
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| 42 | *
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| 43 | * @(#) $Id: in4_var.h 388 2019-05-22 11:25:18Z coas-nagasima $
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| 44 | */
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| 45 |
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| 46 | /*
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| 47 | * Copyright (c) 1985, 1986, 1993
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| 48 | * The Regents of the University of California. All rights reserved.
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| 49 | *
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| 50 | * Redistribution and use in source and binary forms, with or without
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| 51 | * modification, are permitted provided that the following conditions
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| 52 | * are met:
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| 53 | * 1. Redistributions of source code must retain the above copyright
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| 54 | * notice, this list of conditions and the following disclaimer.
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| 55 | * 2. Redistributions in binary form must reproduce the above copyright
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| 56 | * notice, this list of conditions and the following disclaimer in the
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| 57 | * documentation and/or other materials provided with the distribution.
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| 58 | * 3. All advertising materials mentioning features or use of this software
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| 59 | * must display the following acknowledgement:
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| 60 | * This product includes software developed by the University of
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| 61 | * California, Berkeley and its contributors.
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| 62 | * 4. Neither the name of the University nor the names of its contributors
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| 63 | * may be used to endorse or promote products derived from this software
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| 64 | * without specific prior written permission.
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| 65 | *
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| 66 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 67 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 68 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 69 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 70 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 71 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 72 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 73 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 74 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 75 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 76 | * SUCH DAMAGE.
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| 77 | *
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| 78 | * @(#)in_var.h 8.2 (Berkeley) 1/9/95
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| 79 | * $FreeBSD: src/sys/netinet/in_var.h,v 1.29.2.1 1999/08/29 16:29:38 peter Exp $
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| 80 | */
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| 81 |
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| 82 | #ifndef _IN4_VAR_H_
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| 83 | #define _IN4_VAR_H_
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| 84 |
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| 85 | #ifndef _MACRO_ONLY
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| 86 |
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| 87 | /*
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| 88 | * ã¤ã³ã¿ãã§ã¼ã¹ã¢ãã¬ã¹æ§é ä½
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| 89 | */
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| 90 |
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| 91 | typedef struct t_in4_ifaddr {
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| 92 | T_IN4_ADDR addr; /* IPv4 ã¢ãã¬ã¹ */
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| 93 | T_IN4_ADDR mask; /* ãµãããããã¹ã¯ */
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| 94 | } T_IN4_IFADDR;
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| 95 |
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| 96 | /*
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| 97 | * ã«ã¼ãã£ã³ã°è¡¨ã¨ã³ããªæ§é ä½
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| 98 | */
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| 99 |
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| 100 | typedef struct t_in4_rtentry {
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| 101 | T_IN4_ADDR target; /* ç®æ¨ãããã¯ã¼ã¯ã¢ãã¬ã¹ */
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| 102 | T_IN4_ADDR mask; /* ç®æ¨ãããã¯ã¼ã¯ã¢ãã¬ã¹ã®ãµãããããã¹ã¯ */
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| 103 | T_IN4_ADDR gateway; /* ã²ã¼ãã¦ã§ã¤ã® IP ã¢ãã¬ã¹ */
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| 104 | uint32_t expire; /* æå¹æéãåããæå» [s] */
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| 105 | uint8_t flags; /* ãã©ã° */
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| 106 | } T_IN4_RTENTRY;
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| 107 | /*
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| 108 | * TINET 1.1 ã¨ã®äºææ§ã®ããã®å®ç¾©
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| 109 | *
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| 110 | * TINET 1.5 ã¨ã®äºææ§ã®ããã«å®ç¾©ãç¡å¹ã«ããã
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| 111 | */
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| 112 |
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| 113 | #if 0
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| 114 | #ifdef NUM_ROUTE_ENTRY
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| 115 |
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| 116 | #define NUM_IN4_ROUTE_ENTRY NUM_ROUTE_ENTRY
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| 117 | #define NUM_IN4_STATIC_ROUTE_ENTRY NUM_ROUTE_ENTRY
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| 118 | #define NUM_IN4_REDIRECT_ROUTE_ENTRY 0
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| 119 | #define T_RT_ENTRY T_IN4_RTENTRY
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| 120 |
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| 121 | #endif /* of #ifdef NUM_ROUTE_ENTRY */
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| 122 | #endif
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| 123 |
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| 124 | /*
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| 125 | * ã«ã¼ãã£ã³ã°è¡¨
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| 126 | */
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| 127 |
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| 128 | #ifdef SUPPORT_INET4
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| 129 |
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| 130 | extern T_IN4_RTENTRY routing4_tbl[];
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| 131 |
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| 132 | #endif /* of #ifdef SUPPORT_INET4 */
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| 133 |
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| 134 | /*
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| 135 | * åæ¹åç
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| 136 | §
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| 137 | */
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| 138 |
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| 139 | #ifndef T_NET_BUF_DEFINED
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| 140 | typedef struct t_net_buf T_NET_BUF;
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| 141 | #define T_NET_BUF_DEFINED
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| 142 | #endif
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| 143 |
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| 144 | #ifndef T_IFNET_DEFINED
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| 145 | typedef struct t_ifnet T_IFNET;
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| 146 | #define T_IFNET_DEFINED
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| 147 | #endif
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| 148 |
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| 149 | /*
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| 150 | * é¢æ°ã·ãã¥ã¬ã¼ã·ã§ã³ãã¯ã
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| 151 | */
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| 152 |
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| 153 | #define IN4_COPY_TO_HOST(dst,nbuf) (*(dst)=ntohl(GET_IP4_HDR(nbuf)->src))
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| 154 |
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| 155 | /*
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| 156 | * é¢æ°
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| 157 | */
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| 158 |
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| 159 | extern void ip_input (T_NET_BUF *data);
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| 160 | extern ER in4_set_header (T_NET_BUF *nbuf, uint_t len,
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| 161 | T_IN4_ADDR *dstaddr, T_IN4_ADDR *srcaddr, uint8_t proto, uint8_t ttl);
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| 162 | extern ER in4_get_datagram (T_NET_BUF **nbuf, uint_t len, uint_t maxlen,
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| 163 | T_IN4_ADDR *dstaddr, T_IN4_ADDR *srcaddr,
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| 164 | uint8_t proto, uint8_t ttl, ATR nbatr, TMO tmout);
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| 165 | extern uint16_t in4_cksum (T_NET_BUF *nbuf, uint8_t proto, uint_t off, uint_t len);
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| 166 | extern T_IN4_ADDR in4_rtalloc (T_IN4_ADDR dst);
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| 167 | extern void in4_rtredirect (T_IN4_ADDR gateway, T_IN4_ADDR target, uint8_t flags, uint32_t tmo);
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| 168 | extern void in4_init (void);
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| 169 | extern T_IN4_ADDR *in4_addrwithifp (T_IFNET *ifp, T_IN4_ADDR *src, T_IN4_ADDR *dst);
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| 170 | extern const T_NET_BUF**ip_get_frag_queue (void);
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| 171 |
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| 172 | /*
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| 173 | * in4_is_dstaddr_accept -- å®å
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| 174 | ã¢ãã¬ã¹ã¨ãã¦æ£ããããã§ãã¯ããã
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| 175 | *
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| 176 | * 注æ: dstaddr ã¯ã
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| 177 | * TINET-1.2 ãããããã¯ã¼ã¯ãã¤ããªã¼ãã
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| 178 | * TINET-1.1 ã¾ã§ã¯ããã¹ããã¤ããªã¼ã
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| 179 | */
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| 180 | extern bool_t in4_is_dstaddr_accept (T_IN4_ADDR *myaddr, T_IN4_ADDR *dstaddr);
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| 181 | extern bool_t inn4_is_dstaddr_accept (T_IN4_ADDR *myaddr, T_NET_BUF *input);
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| 182 |
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| 183 | /*
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| 184 | * in_cksum -- ãã§ãã¯ãµã è¨ç®é¢æ°ãIPv4ãICMPv4 ç¨
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| 185 | *
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| 186 | * 注æ: data 㯠4 ãªã¯ãããåä½ã§ããã£ã³ã°ãããã¨ã
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| 187 | * data ã 2 ãªã¯ãããåä½ã«ã¢ã©ã¤ã³ããã¦ããªãã¨
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| 188 | * ä¾å¤ãçºçããå¯è½æ§ãããã
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| 189 | * len 㯠4 ãªã¯ãããåä½ã«ã¢ã©ã¤ã³ããã¦ãããã¨ã
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| 190 | */
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| 191 | extern uint16_t in_cksum(void *data, uint_t len /*ãªã¯ãããåä½*/);
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| 192 |
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| 193 | /*
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| 194 | * in_cksum_sum -- ãã§ãã¯ãµã ã®åè¨è¨ç®é¢æ°
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| 195 | *
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| 196 | * 注æ: data 㯠4 ãªã¯ãããåä½ã§ããã£ã³ã°ãããã¨ã
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| 197 | * data ã 2 ãªã¯ãããåä½ã«ã¢ã©ã¤ã³ããã¦ããªãã¨
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| 198 | * ä¾å¤ãçºçããå¯è½æ§ãããã
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| 199 | * len 㯠4 ãªã¯ãããåä½ã«ã¢ã©ã¤ã³ããã¦ãããã¨ã
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| 200 | */
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| 201 | extern uint32_t in_cksum_sum (void *data, uint_t len /*ãªã¯ãããåä½*/);
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| 202 |
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| 203 | /*
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| 204 | * in_cksum_carry -- ãã§ãã¯ãµã ã®æ¡ä¸ãè¨ç®é¢æ°
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| 205 | *
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| 206 | * 注æ: data 㯠4 ãªã¯ãããåä½ã§ããã£ã³ã°ãããã¨ã
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| 207 | * data ã 2 ãªã¯ãããåä½ã«ã¢ã©ã¤ã³ããã¦ããªãã¨
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| 208 | * ä¾å¤ãçºçããå¯è½æ§ãããã
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| 209 | * len 㯠4 ãªã¯ãããåä½ã«ã¢ã©ã¤ã³ããã¦ãããã¨ã
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| 210 | */
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| 211 | extern uint32_t in_cksum_carry (uint32_t sum);
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| 212 |
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| 213 | #endif /* of #ifndef _MACRO_ONLY */
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| 214 |
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| 215 | #endif /* of #ifndef _IN4_VAR_H_ */
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