| 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: tcp_fsm.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) 1982, 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 | * @(#)tcp_fsm.h 8.1 (Berkeley) 6/10/93
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| 79 | * $FreeBSD: src/sys/netinet/tcp_fsm.h,v 1.10.2.3 1999/11/15 02:52:54 green Exp $
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| 80 | */
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| 81 |
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| 82 | #ifndef _TCP_FSM_H_
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| 83 | #define _TCP_FSM_H_
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| 84 |
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| 85 | /*
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| 86 | * TCP FSM ç¶æ
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| 87 | ã®å®ç¾©ãRFC 793 åç
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| 88 | §
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| 89 | */
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| 90 |
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| 91 | #define TCP_FSM_CLOSED 0 /* ã¯ãã¼ãº */
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| 92 | #define TCP_FSM_LISTEN 1 /* ååãªã¼ãã³ */
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| 93 | #define TCP_FSM_SYN_SENT 2 /* è½åãªã¼ãã³ãSYN éä¿¡æ¸ã¿ */
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| 94 | #define TCP_FSM_SYN_RECVD 3 /* ååãªã¼ãã³ãSYN åä¿¡æ¸ã¿ */
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| 95 | #define TCP_FSM_ESTABLISHED 4 /* ã³ãã¯ã·ã§ã³éè¨å®äº */
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| 96 | #define TCP_FSM_CLOSE_WAIT 5 /* ç¸æãã FIN åä¿¡ãAPP ã®çµäºå¾
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| 97 | ã¡ */
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| 98 | #define TCP_FSM_FIN_WAIT_1 6 /* APP ãçµäºãFIN éä¿¡æ¸ã¿ãACK å¾
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| 99 | ã¡ */
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| 100 | #define TCP_FSM_CLOSING 7 /* åæã¯ãã¼ãºãFIN 交ææ¸ã¿ãACK å¾
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| 101 | ã¡ */
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| 102 | #define TCP_FSM_LAST_ACK 8 /* APP ãçµäºãACK å¾
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| 103 | ã¡ */
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| 104 | #define TCP_FSM_FIN_WAIT_2 9 /* ç¸æããã® FIN å¾
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| 105 | ã¡ */
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| 106 | #define TCP_FSM_TIME_WAIT 10 /* ç¸æããã® FIN åä¿¡æ¸ã¿ãæéå¾
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| 107 | ã¡ */
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| 108 |
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| 109 | /*
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| 110 | * é¢æ°ã·ãã¥ã¬ã¼ã·ã§ã³ãã¯ã
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| 111 | */
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| 112 |
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| 113 | #define TCP_FSM_HAVE_RCVD_SYN(s) ((s) >= TCP_FSM_SYN_RECVD)
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| 114 | #define TCP_FSM_HAVE_ESTABLISHED(s) ((s) >= TCP_FSM_ESTABLISHED)
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| 115 | #define TCP_FSM_HAVE_RCVD_FIN(s) ((s) >= TCP_FSM_TIME_WAIT)
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| 116 |
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| 117 | #define TCP_FSM_CAN_SEND_MORE(s) ((s) == TCP_FSM_ESTABLISHED || \
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| 118 | (s) == TCP_FSM_CLOSE_WAIT)
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| 119 | #define TCP_FSM_CAN_RECV_MORE(s) ((s) == TCP_FSM_ESTABLISHED || \
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| 120 | (s) == TCP_FSM_FIN_WAIT_1 || \
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| 121 | (s) == TCP_FSM_FIN_WAIT_2)
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| 122 |
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| 123 | #endif /* of #ifndef _TCP_FSM_H_ */
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