[313] | 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: tcpn_usrreq.c 313 2017-07-23 04:50:32Z 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, 1988, 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 | * From: @(#)tcp_usrreq.c 8.2 (Berkeley) 1/3/94
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| 79 | * $FreeBSD: src/sys/netinet/tcp_usrreq.c,v 1.40.2.3 1999/08/29 16:29:57 peter Exp $
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| 80 | */
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| 81 |
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| 82 | #ifdef TCP_CFG_EXTENTIONS
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| 83 |
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| 84 | #if (API_PROTO == API_PROTO_IPV6 && TNUM_TCP6_REPID > 0) || (API_PROTO == API_PROTO_IPV4 && TNUM_TCP4_REPID > 0)
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| 85 |
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| 86 | /*
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| 87 | * tcp_cre_rep -- TCP åä»å£ã®çæãæ¡å¼µæ©è½ã
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| 88 | */
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| 89 |
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| 90 | #ifdef __tcp_cre_rep
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| 91 |
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| 92 | ER
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| 93 | TCP_CRE_REP (ID repid, T_TCPN_CREP *pk_crep)
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| 94 | {
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| 95 | T_TCP_REP *rep;
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| 96 | ER error;
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| 97 |
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| 98 | /* TCP åä»å£ ID ããã§ãã¯ããã*/
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| 99 | if (!VALID_TCP_REPID(repid))
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| 100 | return E_ID;
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| 101 |
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| 102 | /* pk_crep ã NULL ãªãã¨ã©ã¼ */
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| 103 | if (pk_crep == NULL)
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| 104 | return E_PAR;
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| 105 |
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| 106 | #if (API_PROTO == API_PROTO_IPV6) && !defined(API_CFG_IP4MAPPED_ADDR)
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| 107 |
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| 108 | /*
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| 109 | * API ã IPv6 㧠IPv4 å°å½±ã¢ãã¬ã¹ãèªãããã¦ããªãã®ã«ããããããã
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| 110 | * IPv4 å°å½±ã¢ãã¬ã¹ãæå®ããããã¨ã©ã¼
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| 111 | */
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| 112 | if (in6_is_addr_ipv4mapped(&pk_crep->myaddr.ipaddr))
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| 113 | return E_PAR;
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| 114 |
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| 115 | #endif /* of #if (API_PROTO == API_PROTO_IPV6) && !defined(DAPI_CFG_IP4MAPPED_ADDR) */
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| 116 |
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| 117 | /* TCP åä»å£ãå¾ãã*/
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| 118 | rep = GET_TCP_REP(repid);
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| 119 |
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| 120 | /* TCP åä»å£ããåççæç¨ã§ãªããã°ã¨ã©ã¼ */
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| 121 | if (!DYNAMIC_TCP_REP(rep))
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| 122 | return E_ID;
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| 123 |
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| 124 | /* åä»å£ãããã¯ããã*/
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| 125 | syscall(wai_sem(rep->semid_lock));
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| 126 |
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| 127 | /*
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| 128 | * TCP åä»å£ããã§ãã¯ãããçææ¸ã¿ã§ããã°ã¨ã©ã¼
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| 129 | */
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| 130 | if (VALID_TCP_REP(rep))
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| 131 | error = E_OBJ;
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| 132 | else {
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| 133 |
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| 134 | /* TCP åä»å£çææ
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| 135 | å ±ãã³ãã¼ããã*/
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| 136 | rep->repatr = pk_crep->repatr; /* åä»å£å±æ§ */
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| 137 | rep->myaddr.ipaddr = pk_crep->myaddr.ipaddr; /* èªåã®ã¢ãã¬ã¹ */
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| 138 | rep->myaddr.portno = pk_crep->myaddr.portno; /* èªåã®ã¢ãã¬ã¹ */
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| 139 |
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| 140 | /* TCP åä»å£ãçææ¸ã¿ã«ããã*/
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| 141 | rep->flags |= TCP_REP_FLG_VALID;
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| 142 | error = E_OK;
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| 143 | }
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| 144 |
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| 145 | /* åä»å£ã®ããã¯ã解é¤ããã*/
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| 146 | syscall(sig_sem(rep->semid_lock));
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| 147 |
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| 148 | return error;
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| 149 | }
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| 150 |
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| 151 | #endif /* of #ifdef __tcp_cre_rep */
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| 152 |
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| 153 | #ifdef __tcp_del_rep
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| 154 |
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| 155 | /*
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| 156 | * tcp_find_cep_rep -- TCP åä»å£ããªã³ã¯ãã¦ãã TCP é信端ç¹ãå¾ãã
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| 157 | */
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| 158 |
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| 159 | static T_TCP_CEP*
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| 160 | TCP_FIND_CEP_REP (T_TCP_REP* rep)
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| 161 | {
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| 162 | T_TCP_CEP* cep;
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| 163 |
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| 164 | for (cep = &tcp_cep[tmax_tcp_cepid]; cep -- != tcp_cep; ) {
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| 165 |
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| 166 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4)
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| 167 | if (cep->rep4 == rep)
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| 168 | #else
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| 169 | if (cep->rep == rep)
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| 170 | #endif
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| 171 | return cep;
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| 172 | }
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| 173 |
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| 174 | return NULL;
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| 175 | }
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| 176 |
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| 177 | /*
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| 178 | * tcp_del_rep_body -- TCP åä»å£ã®åé¤ãæ¡å¼µæ©è½ãã®æ¬ä½
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| 179 | */
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| 180 |
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| 181 | static ER
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| 182 | TCP_DEL_REP_BODY (ID repid)
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| 183 | {
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| 184 | T_TCP_CEP *cep;
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| 185 | T_TCP_REP *rep;
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| 186 | ER error = E_OK;
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| 187 |
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| 188 | /* TCP åä»å£ ID ã®ãã§ãã¯ã¯çµäºãã¦ããã*/
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| 189 |
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| 190 | /* TCP åä»å£ãå¾ãã*/
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| 191 | rep = GET_TCP_REP(repid);
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| 192 |
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| 193 | /* TCP åä»å£ããåççæç¨ã§ãªããã°ã¨ã©ã¼ */
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| 194 | if (!DYNAMIC_TCP_REP(rep))
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| 195 | return E_ID;
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| 196 |
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| 197 | /* åä»å£ãããã¯ããã*/
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| 198 | syscall(wai_sem(rep->semid_lock));
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| 199 |
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| 200 | /* TCP åä»å£ããã§ãã¯ãããæªçæã®å ´åã¯ã¨ã©ã¼ */
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| 201 | if (!VALID_TCP_REP(rep))
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| 202 | error = E_NOEXS;
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| 203 | else {
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| 204 | if ((cep = TCP_FIND_CEP_REP(rep)) != NULL) {
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| 205 | /*
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| 206 | * ãã§ã«ååãªã¼ãã³ãã¦ããã¨ã
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| 207 | *ï¼tcp_acp_cep ãå¼ã°ãã¦ããã¨ãï¼ã¯ã
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| 208 | * tcp_acp_cep ãçµäºãããã
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| 209 | */
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| 210 |
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| 211 | /* é信端ç¹ãããã¯ããã*/
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| 212 | syscall(wai_sem(cep->semid_lock));
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| 213 |
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| 214 | /*
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| 215 | * é信端ç¹ããåä»å£ã解æ¾ãã
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| 216 | * ã¤ãã³ããã©ã°ãã¯ãã¼ãºã«è¨å®ããã
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| 217 | */
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| 218 | cep->rep = NULL;
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| 219 |
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| 220 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4)
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| 221 | cep->rep4 = NULL;
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| 222 | #endif
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| 223 |
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| 224 | cep->fsm_state = TCP_FSM_CLOSED;
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| 225 | cep->error = E_DLT;
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| 226 | syscall(set_flg(cep->est_flgid, TCP_CEP_EVT_CLOSED));
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| 227 |
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| 228 | #ifdef TCP_CFG_NON_BLOCKING
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| 229 |
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| 230 | if (cep->rcv_nblk_tfn != TFN_TCP_UNDEF) {
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| 231 | if (IS_PTR_DEFINED(cep->callback)) {
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| 232 |
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| 233 | #ifdef TCP_CFG_NON_BLOCKING_COMPAT14
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| 234 |
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| 235 | (*cep->callback)(GET_TCP_CEPID(cep), cep->rcv_nblk_tfn, (void*)E_DLT);
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| 236 |
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| 237 | #else /* of #ifdef TCP_CFG_NON_BLOCKING_COMPAT14 */
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| 238 |
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| 239 | ER error = E_DLT;
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| 240 |
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| 241 | (*cep->callback)(GET_TCP_CEPID(cep), cep->rcv_nblk_tfn, (void*)&error);
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| 242 |
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| 243 | #endif /* of #ifdef TCP_CFG_NON_BLOCKING_COMPAT14 */
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| 244 |
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| 245 | }
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| 246 | else
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| 247 | error = E_OBJ;
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| 248 | cep->rcv_nblk_tfn = TFN_TCP_UNDEF;
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| 249 | }
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| 250 |
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| 251 | #endif /* of #ifdef TCP_CFG_NON_BLOCKING */
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| 252 |
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| 253 | cep->rcv_tskid = TA_NULL;
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| 254 | cep->rcv_tfn = TFN_TCP_UNDEF;
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| 255 |
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| 256 | /* é信端ç¹ã®ããã¯ã解é¤ããã*/
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| 257 | syscall(sig_sem(cep->semid_lock));
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| 258 |
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| 259 | }
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| 260 | else
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| 261 | error = E_OK;
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| 262 |
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| 263 | /* TCP åä»å£ãæªçæã«ããã*/
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| 264 | rep->flags &= ~TCP_REP_FLG_VALID;
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| 265 | }
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| 266 |
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| 267 | /* åä»å£ã®ããã¯ã解é¤ããã*/
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| 268 | syscall(sig_sem(rep->semid_lock));
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| 269 |
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| 270 | return error;
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| 271 | }
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| 272 |
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| 273 | #endif /* of #ifdef __tcp_del_rep */
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| 274 |
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| 275 | #endif /* of #if (API_PROTO == API_PROTO_IPV6 && TNUM_TCP6_REPID > 0) || (API_PROTO == API_PROTO_IPV4 && TNUM_TCP4_REPID > 0) */
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| 276 |
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| 277 | #endif /* of #ifdef TCP_CFG_EXTENTIONS */
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| 278 |
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| 279 | #if (API_PROTO == API_PROTO_IPV6 && TNUM_TCP6_REPID > 0) || (API_PROTO == API_PROTO_IPV4 && TNUM_TCP4_REPID > 0)
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| 280 |
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| 281 | /*
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| 282 | * tcp_acp_cep -- æ¥ç¶è¦æ±å¾
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| 283 | ã¡ (ååãªã¼ãã³)ãæ¨æºæ©è½ã
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| 284 | */
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| 285 |
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| 286 | #ifdef __tcp_acp_cep
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| 287 |
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| 288 | ER
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| 289 | TCP_ACP_CEP (ID cepid, ID repid, T_IPEP *p_dstaddr, TMO tmout)
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| 290 | {
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| 291 | T_TCP_REP *rep;
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| 292 | T_TCP_CEP *cep;
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| 293 | ER error;
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| 294 | FLGPTN flag;
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| 295 |
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| 296 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4)
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| 297 |
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| 298 | /*
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| 299 | * API (tcp6_acp_cep 㨠tcp_acp_cep) ã¨ã
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| 300 | * TCPé信端ç¹ã®ãããã³ã«ãçç¾ãã¦ããã°ã¨ã©ã¼
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| 301 | */
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| 302 |
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| 303 | #if API_PROTO == API_PROTO_IPV6
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| 304 |
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| 305 | if (GET_TCP_CEP(cepid)->flags & TCP_CEP_FLG_IPV4)
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| 306 | return E_ID;
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| 307 |
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| 308 | #endif /* of #if API_PROTO == API_PROTO_IPV6 */
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| 309 |
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| 310 | #if API_PROTO == API_PROTO_IPV4
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| 311 |
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| 312 | if ((GET_TCP_CEP(cepid)->flags & TCP_CEP_FLG_IPV4) == 0)
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| 313 | return E_ID;
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| 314 |
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| 315 | #endif /* of #if API_PROTO == API_PROTO_IPV4 */
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| 316 |
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| 317 | #endif /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) */
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| 318 |
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| 319 | /* TCP åä»å£ããã§ãã¯ããã*/
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| 320 | if (!VALID_TCP_REPID(repid))
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| 321 | return E_ID;
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| 322 |
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| 323 | #ifdef TCP_CFG_NON_BLOCKING
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| 324 |
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| 325 | /* p_dstaddr ã NULL ãªãã¨ã©ã¼ */
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| 326 | if (p_dstaddr == NULL)
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| 327 | return E_PAR;
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| 328 |
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| 329 | #else /* of #ifdef TCP_CFG_NON_BLOCKING */
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| 330 |
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| 331 | /* p_dstaddr ã NULL ããtmout ã TMO_NBLK ãªãã¨ã©ã¼ */
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| 332 | if (p_dstaddr == NULL || tmout == TMO_NBLK)
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| 333 | return E_PAR;
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| 334 |
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| 335 | #endif /* of #ifdef TCP_CFG_NON_BLOCKING */
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| 336 |
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| 337 | #if (API_PROTO == API_PROTO_IPV6) && !defined(API_CFG_IP4MAPPED_ADDR)
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| 338 |
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| 339 | /*
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| 340 | * API ã IPv6 㧠IPv4 å°å½±ã¢ãã¬ã¹ãèªãããã¦ããªãã®ã«ããããããã
|
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| 341 | * IPv4 å°å½±ã¢ãã¬ã¹ãæå®ããããã¨ã©ã¼
|
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| 342 | */
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| 343 | if (in6_is_addr_ipv4mapped(&p_dstaddr->ipaddr))
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| 344 | return E_PAR;
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| 345 |
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| 346 | #endif /* of #if (API_PROTO == API_PROTO_IPV6) && !defined(DAPI_CFG_IP4MAPPED_ADDR) */
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| 347 |
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| 348 | /*
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| 349 | * CEP ãããã¯ããAPI æ©è½ã³ã¼ãã¨ã¿ã¹ã¯èå¥åãè¨é²ããã
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| 350 | * ãã§ã«è¨é²ããã¦ããã°ããã³ãã£ã³ã°ä¸ãªã®ã§ã¨ã©ã¼
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| 351 | */
|
---|
| 352 | if ((error = tcp_lock_cep(cepid, &cep, TFN_TCP_ACP_CEP)) != E_OK)
|
---|
| 353 | return error;
|
---|
| 354 |
|
---|
| 355 | /* CEP ã® FSM ãã¯ãã¼ãºç¶æ
|
---|
| 356 | ã§ãªããã°ã¨ã©ã¼ã*/
|
---|
| 357 | if (cep->fsm_state != TCP_FSM_CLOSED) {
|
---|
| 358 | error = E_OBJ;
|
---|
| 359 | goto err_ret;
|
---|
| 360 | }
|
---|
| 361 | syscall(clr_flg(cep->est_flgid, (FLGPTN)(~TCP_CEP_EVT_CLOSED)));
|
---|
| 362 |
|
---|
| 363 | /* TCP é信端ç¹ãåæåããã*/
|
---|
| 364 | tcp_init_cep(cep);
|
---|
| 365 |
|
---|
| 366 | /* TCP åä»å£ãå¾ãã*/
|
---|
| 367 |
|
---|
| 368 | rep = GET_TCP_REP(repid);
|
---|
| 369 |
|
---|
| 370 | #ifdef TCP_CFG_EXTENTIONS
|
---|
| 371 |
|
---|
| 372 | /* TCP åä»å£ãããã¯ããã*/
|
---|
| 373 | syscall(wai_sem(rep->semid_lock));
|
---|
| 374 |
|
---|
| 375 | /* TCP åä»å£ããã§ãã¯ããã*/
|
---|
| 376 | if (!VALID_TCP_REP(rep)) {
|
---|
| 377 | syscall(sig_sem(rep->semid_lock));
|
---|
| 378 | error = E_NOEXS;
|
---|
| 379 | goto err_ret;
|
---|
| 380 | }
|
---|
| 381 |
|
---|
| 382 | #endif /* of #ifdef TCP_CFG_EXTENTIONS */
|
---|
| 383 |
|
---|
| 384 | /* TCP é信端ç¹ã«TCPåä»å£ãè¨é²ããã*/
|
---|
| 385 |
|
---|
| 386 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4)
|
---|
| 387 |
|
---|
| 388 | #if API_PROTO == API_PROTO_IPV6
|
---|
| 389 |
|
---|
| 390 | cep->rep = rep;
|
---|
| 391 |
|
---|
| 392 | #else /* of #if API_PROTO == API_PROTO_IPV6 */
|
---|
| 393 |
|
---|
| 394 | cep->rep4 = rep;
|
---|
| 395 |
|
---|
| 396 | #endif /*of #if API_PROTO == API_PROTO_IPV6 */
|
---|
| 397 |
|
---|
| 398 | #else /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) */
|
---|
| 399 |
|
---|
| 400 | cep->rep = rep;
|
---|
| 401 |
|
---|
| 402 | #endif /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) */
|
---|
| 403 |
|
---|
| 404 | #ifdef TCP_CFG_EXTENTIONS
|
---|
| 405 |
|
---|
| 406 | /* TCP åä»å£ã®ããã¯ã解é¤ããã*/
|
---|
| 407 | syscall(sig_sem(rep->semid_lock));
|
---|
| 408 |
|
---|
| 409 | #endif /* of #ifdef TCP_CFG_EXTENTIONS */
|
---|
| 410 |
|
---|
| 411 | /* TCP åä»å£ã®ã¢ãã¬ã¹ãã³ãã¼ããã*/
|
---|
| 412 |
|
---|
| 413 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4)
|
---|
| 414 |
|
---|
| 415 | if (rep->myaddr.ipaddr == IPV4_ADDRANY)
|
---|
| 416 | memcpy(&cep->myaddr.ipaddr, &in6_addr_unspecified,
|
---|
| 417 | sizeof(in6_addr_unspecified));
|
---|
| 418 | else
|
---|
| 419 | in6_make_ipv4mapped(&cep->myaddr.ipaddr, rep->myaddr.ipaddr);
|
---|
| 420 | cep->myaddr.portno = rep->myaddr.portno;
|
---|
| 421 |
|
---|
| 422 | #else /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4) */
|
---|
| 423 |
|
---|
| 424 | cep->myaddr = rep->myaddr;
|
---|
| 425 |
|
---|
| 426 | #endif /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4) */
|
---|
| 427 |
|
---|
| 428 | #if API_PROTO == API_PROTO_IPV4
|
---|
| 429 |
|
---|
| 430 | /* TCP é信端ç¹ã®ãããã¯ã¼ã¯å±¤ãããã³ã«ãè¨å®ããã*/
|
---|
| 431 | cep->flags |= TCP_CEP_FLG_IPV4;
|
---|
| 432 |
|
---|
| 433 | #endif /* of #if API_PROTO == API_PROTO_IPV4 */
|
---|
| 434 |
|
---|
| 435 | /* é信端ç¹ãè¨å®ããã*/
|
---|
| 436 | cep->fsm_state = TCP_FSM_LISTEN;
|
---|
| 437 |
|
---|
| 438 | #ifdef TCP_CFG_NON_BLOCKING
|
---|
| 439 |
|
---|
| 440 | /* ã¿ã¤ã ã¢ã¦ãããã§ãã¯ããã*/
|
---|
| 441 | if (tmout == TMO_NBLK) {
|
---|
| 442 | /* ãã³ããããã³ã°ã³ã¼ã« */
|
---|
| 443 |
|
---|
| 444 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4)
|
---|
| 445 |
|
---|
| 446 | #if API_PROTO == API_PROTO_IPV4
|
---|
| 447 |
|
---|
| 448 | cep->p_dstaddr4 = p_dstaddr;
|
---|
| 449 | cep->p_dstaddr = NULL;
|
---|
| 450 |
|
---|
| 451 | #else /* of #if API_PROTO == API_PROTO_IPV4 */
|
---|
| 452 |
|
---|
| 453 | cep->p_dstaddr4 = NULL;
|
---|
| 454 | cep->p_dstaddr = p_dstaddr;
|
---|
| 455 |
|
---|
| 456 | #endif /* of #if API_PROTO == API_PROTO_IPV4 */
|
---|
| 457 |
|
---|
| 458 | #else /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) */
|
---|
| 459 |
|
---|
| 460 | cep->p_dstaddr = p_dstaddr;
|
---|
| 461 |
|
---|
| 462 | #endif /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) */
|
---|
| 463 |
|
---|
| 464 | cep->rcv_nblk_tfn = TFN_TCP_ACP_CEP;
|
---|
| 465 | return E_WBLK;
|
---|
| 466 | }
|
---|
| 467 | else {
|
---|
| 468 |
|
---|
| 469 | #endif /* of #ifdef TCP_CFG_NON_BLOCKING */
|
---|
| 470 |
|
---|
| 471 | /*
|
---|
| 472 | * FSM ã ESTABLISHED ã«ãªãã¾ã§å¾
|
---|
| 473 | ã¤ã
|
---|
| 474 | * FSM ã CLOSED ã«ãªã£ãå ´åã¯ãã¨ã©ã¼ãçºçãããã¨ãæå³ãã¦ããã
|
---|
| 475 | */
|
---|
| 476 | error = twai_flg(cep->est_flgid, (TCP_CEP_EVT_CLOSED |
|
---|
| 477 | TCP_CEP_EVT_ESTABLISHED), TWF_ORW, &flag, tmout);
|
---|
| 478 | if (error == E_OK) {
|
---|
| 479 | if (cep->error != E_OK)
|
---|
| 480 | error = cep->error;
|
---|
| 481 | else if (cep->fsm_state == TCP_FSM_CLOSED)
|
---|
| 482 | error = E_TMOUT;
|
---|
| 483 | }
|
---|
| 484 |
|
---|
| 485 | syscall(clr_flg(cep->est_flgid, (FLGPTN)(~TCP_CEP_EVT_ESTABLISHED)));
|
---|
| 486 |
|
---|
| 487 | if (error == E_OK) {
|
---|
| 488 | /* ç¸æã®ã¢ãã¬ã¹ãã³ãã¼ããã*/
|
---|
| 489 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4)
|
---|
| 490 | p_dstaddr->ipaddr = ntohl(cep->dstaddr.ipaddr.s6_addr32[3]);
|
---|
| 491 | p_dstaddr->portno = cep->dstaddr.portno;
|
---|
| 492 | #else
|
---|
| 493 | *p_dstaddr = cep->dstaddr;
|
---|
| 494 | #endif
|
---|
| 495 | }
|
---|
| 496 | else {
|
---|
| 497 | /*
|
---|
| 498 | * é信端ç¹ããåä»å£ã解æ¾ãã
|
---|
| 499 | * ã¤ãã³ããã©ã°ãã¯ãã¼ãºã«è¨å®ããã
|
---|
| 500 | */
|
---|
| 501 | cep->rep = NULL;
|
---|
| 502 |
|
---|
| 503 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4)
|
---|
| 504 | cep->rep4 = NULL;
|
---|
| 505 | #endif
|
---|
| 506 |
|
---|
| 507 | cep->fsm_state = TCP_FSM_CLOSED;
|
---|
| 508 | syscall(set_flg(cep->est_flgid, TCP_CEP_EVT_CLOSED));
|
---|
| 509 | }
|
---|
| 510 |
|
---|
| 511 | #ifdef TCP_CFG_NON_BLOCKING
|
---|
| 512 |
|
---|
| 513 | }
|
---|
| 514 |
|
---|
| 515 | #endif /* of #ifdef TCP_CFG_NON_BLOCKING */
|
---|
| 516 |
|
---|
| 517 | err_ret:
|
---|
| 518 | cep->rcv_tskid = TA_NULL;
|
---|
| 519 | cep->rcv_tfn = TFN_TCP_UNDEF;
|
---|
| 520 | return error;
|
---|
| 521 | }
|
---|
| 522 |
|
---|
| 523 | #endif /* of #ifdef __tcp_acp_cep */
|
---|
| 524 |
|
---|
| 525 | #endif /* of #if (API_PROTO == API_PROTO_IPV6 && TNUM_TCP6_REPID > 0) || (API_PROTO == API_PROTO_IPV4 && TNUM_TCP4_REPID > 0) */
|
---|
| 526 |
|
---|
| 527 | /*
|
---|
| 528 | * tcp_con_cep -- æ¥ç¶è¦æ± (è½åãªã¼ãã³)ãæ¨æºæ©è½ã
|
---|
| 529 | */
|
---|
| 530 |
|
---|
| 531 | #ifdef __tcp_con_cep
|
---|
| 532 |
|
---|
| 533 | ER
|
---|
| 534 | TCP_CON_CEP (ID cepid, T_IPEP *p_myaddr, T_IPEP *p_dstaddr, TMO tmout)
|
---|
| 535 | {
|
---|
| 536 | T_TCP_CEP *cep;
|
---|
| 537 | ER error;
|
---|
| 538 | FLGPTN flag;
|
---|
| 539 |
|
---|
| 540 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4)
|
---|
| 541 |
|
---|
| 542 | /*
|
---|
| 543 | * API (tcp6_acp_cep 㨠tcp_acp_cep) ã¨ã
|
---|
| 544 | * TCPé信端ç¹ã®ãããã³ã«ãçç¾ãã¦ããã°ã¨ã©ã¼
|
---|
| 545 | */
|
---|
| 546 |
|
---|
| 547 | #if API_PROTO == API_PROTO_IPV6
|
---|
| 548 |
|
---|
| 549 | if (GET_TCP_CEP(cepid)->flags & TCP_CEP_FLG_IPV4)
|
---|
| 550 | return E_ID;
|
---|
| 551 |
|
---|
| 552 | #endif /* of #if API_PROTO == API_PROTO_IPV6 */
|
---|
| 553 |
|
---|
| 554 | #if API_PROTO == API_PROTO_IPV4
|
---|
| 555 |
|
---|
| 556 | if ((GET_TCP_CEP(cepid)->flags & TCP_CEP_FLG_IPV4) == 0)
|
---|
| 557 | return E_ID;
|
---|
| 558 |
|
---|
| 559 | #endif /* of #if API_PROTO == API_PROTO_IPV4 */
|
---|
| 560 |
|
---|
| 561 | #endif /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) */
|
---|
| 562 |
|
---|
| 563 | /*
|
---|
| 564 | * ãã¦å
|
---|
| 565 | ããã«ããã£ã¹ãã¢ãã¬ã¹ãªãã¨ã©ã¼
|
---|
| 566 | */
|
---|
| 567 |
|
---|
| 568 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4)
|
---|
| 569 |
|
---|
| 570 | if (IN4_IS_ADDR_MULTICAST(p_dstaddr->ipaddr))
|
---|
| 571 | return E_PAR;
|
---|
| 572 |
|
---|
| 573 | #else /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4) */
|
---|
| 574 |
|
---|
| 575 | if (IN_IS_ADDR_MULTICAST(&p_dstaddr->ipaddr))
|
---|
| 576 | return E_PAR;
|
---|
| 577 |
|
---|
| 578 | #endif /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4) */
|
---|
| 579 |
|
---|
| 580 | #if (API_PROTO == API_PROTO_IPV6) && !defined(API_CFG_IP4MAPPED_ADDR)
|
---|
| 581 |
|
---|
| 582 | /*
|
---|
| 583 | * API ã IPv6 㧠IPv4 å°å½±ã¢ãã¬ã¹ãèªãããã¦ããªãã®ã«ããããããã
|
---|
| 584 | * IPv4 å°å½±ã¢ãã¬ã¹ãæå®ããããã¨ã©ã¼
|
---|
| 585 | */
|
---|
| 586 | if (in6_is_addr_ipv4mapped(&p_dstaddr->ipaddr))
|
---|
| 587 | return E_PAR;
|
---|
| 588 |
|
---|
| 589 | #endif /* of #if (API_PROTO == API_PROTO_IPV6) && !defined(DAPI_CFG_IP4MAPPED_ADDR) */
|
---|
| 590 |
|
---|
| 591 | #ifdef TCP_CFG_NON_BLOCKING
|
---|
| 592 |
|
---|
| 593 | /*
|
---|
| 594 | * p_dstaddr ã¾ã㯠p_myaddr ã NULL ãªãã¨ã©ã¼
|
---|
| 595 | */
|
---|
| 596 | if (p_myaddr == NULL || p_dstaddr == NULL)
|
---|
| 597 | return E_PAR;
|
---|
| 598 |
|
---|
| 599 | #else /* of #ifdef TCP_CFG_NON_BLOCKING */
|
---|
| 600 |
|
---|
| 601 | /*
|
---|
| 602 | * p_dstaddr ã¾ã㯠p_myaddr ã NULL ã
|
---|
| 603 | * tmout ã TMO_NBLK ãªãã¨ã©ã¼
|
---|
| 604 | */
|
---|
| 605 | if (p_myaddr == NULL || p_dstaddr == NULL || tmout == TMO_NBLK)
|
---|
| 606 | return E_PAR;
|
---|
| 607 |
|
---|
| 608 | #endif /* of #ifdef TCP_CFG_NON_BLOCKING */
|
---|
| 609 |
|
---|
| 610 | /*
|
---|
| 611 | * CEP ãããã¯ããAPI æ©è½ã³ã¼ãã¨ã¿ã¹ã¯èå¥åãè¨é²ããã
|
---|
| 612 | * ãã§ã«è¨é²ããã¦ããã°ããã³ãã£ã³ã°ä¸ãªã®ã§ã¨ã©ã¼
|
---|
| 613 | */
|
---|
| 614 | if ((error = tcp_lock_cep(cepid, &cep, TFN_TCP_CON_CEP)) != E_OK)
|
---|
| 615 | return error;
|
---|
| 616 |
|
---|
| 617 | /* CEP ã® FSM ãã¯ãã¼ãºç¶æ
|
---|
| 618 | ã§ãªããã°ã¨ã©ã¼ã*/
|
---|
| 619 | if (cep->fsm_state != TCP_FSM_CLOSED) {
|
---|
| 620 | error = E_OBJ;
|
---|
| 621 | goto err_ret;
|
---|
| 622 | }
|
---|
| 623 | syscall(clr_flg(cep->est_flgid, (FLGPTN)(~TCP_CEP_EVT_CLOSED)));
|
---|
| 624 |
|
---|
| 625 | /* ã·ã¼ã±ã³ã¹çªå·ãåæåããã*/
|
---|
| 626 | if (tcp_iss == 0)
|
---|
| 627 | tcp_init_iss();
|
---|
| 628 |
|
---|
| 629 | /* é信端ç¹ãåæåããã*/
|
---|
| 630 | tcp_init_cep(cep);
|
---|
| 631 |
|
---|
| 632 | /*
|
---|
| 633 | * IP ã¢ãã¬ã¹ãè¨å®ããã
|
---|
| 634 | * p_myaddr ã NADR (-1) ã§ã¯ãªããèª IP ã¢ãã¬ã¹ã ANY ã§ãªããã°ã
|
---|
| 635 | * æå®ããã IP ã¢ãã¬ã¹ãå²ãå½ã¦ãã
|
---|
| 636 | */
|
---|
| 637 |
|
---|
| 638 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4)
|
---|
| 639 |
|
---|
| 640 | if (p_myaddr != NADR && !IN4_IS_ADDR_ANY(&p_myaddr->ipaddr))
|
---|
| 641 | in6_make_ipv4mapped(&cep->myaddr.ipaddr, p_myaddr->ipaddr);
|
---|
| 642 | else
|
---|
| 643 | in6_make_ipv4mapped(&cep->myaddr.ipaddr, IF_GET_IFNET()->in4_ifaddr.addr);
|
---|
| 644 |
|
---|
| 645 | in6_make_ipv4mapped(&cep->dstaddr.ipaddr, p_dstaddr->ipaddr);
|
---|
| 646 | cep->dstaddr.portno = p_dstaddr->portno;
|
---|
| 647 |
|
---|
| 648 | #else /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4) */
|
---|
| 649 |
|
---|
| 650 | if (p_myaddr != NADR && !IN_IS_ADDR_ANY(&p_myaddr->ipaddr))
|
---|
| 651 | cep->myaddr.ipaddr = p_myaddr->ipaddr;
|
---|
| 652 | else {
|
---|
| 653 | if (IN_ADDRWITHIFP(IF_GET_IFNET(), &cep->myaddr.ipaddr, &p_dstaddr->ipaddr) == NULL) {
|
---|
| 654 | error = E_PAR;
|
---|
| 655 | goto err_ret;
|
---|
| 656 | }
|
---|
| 657 | }
|
---|
| 658 |
|
---|
| 659 | cep->dstaddr = *p_dstaddr;
|
---|
| 660 |
|
---|
| 661 | #endif /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) && (API_PROTO == API_PROTO_IPV4) */
|
---|
| 662 |
|
---|
| 663 | #if API_PROTO == API_PROTO_IPV4
|
---|
| 664 |
|
---|
| 665 | /* TCP é信端ç¹ã®ãããã¯ã¼ã¯å±¤ãããã³ã«ãè¨å®ããã*/
|
---|
| 666 | cep->flags |= TCP_CEP_FLG_IPV4;
|
---|
| 667 |
|
---|
| 668 | #endif /* of #if API_PROTO == API_PROTO_IPV4 */
|
---|
| 669 |
|
---|
| 670 | /* é信端ç¹ãè¨å®ããã*/
|
---|
| 671 | //NET_DEBUG_TCP5("tcp_con_cep3[c=%d,d=%lI.%d,s=%lI.%d]\n",
|
---|
| 672 | cep->fsm_state = TCP_FSM_SYN_SENT;
|
---|
| 673 | cep->iss = tcp_iss;
|
---|
| 674 | cep->timer[TCP_TIM_KEEP] = TCP_TVAL_KEEP_INIT;
|
---|
| 675 | tcp_iss += TCP_ISS_INCR() / 2;
|
---|
| 676 | init_send_seq(cep);
|
---|
| 677 |
|
---|
| 678 | #ifdef TCP_CFG_NON_BLOCKING
|
---|
| 679 |
|
---|
| 680 | /* ã¿ã¤ã ã¢ã¦ãããã§ãã¯ããã*/
|
---|
| 681 | if (tmout == TMO_NBLK) {
|
---|
| 682 | /* ãã³ããããã³ã°ã³ã¼ã« */
|
---|
| 683 |
|
---|
| 684 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4)
|
---|
| 685 |
|
---|
| 686 | #if API_PROTO == API_PROTO_IPV4
|
---|
| 687 |
|
---|
| 688 | cep->p_dstaddr4 = p_dstaddr;
|
---|
| 689 | cep->p_myaddr4 = p_myaddr;
|
---|
| 690 | cep->p_dstaddr = NULL;
|
---|
| 691 | cep->p_myaddr = NULL;
|
---|
| 692 |
|
---|
| 693 | #else /* of #if API_PROTO == API_PROTO_IPV4 */
|
---|
| 694 |
|
---|
| 695 | cep->p_dstaddr4 = NULL;
|
---|
| 696 | cep->p_myaddr4 = NULL;
|
---|
| 697 | cep->p_dstaddr = p_dstaddr;
|
---|
| 698 | cep->p_myaddr = p_myaddr;
|
---|
| 699 |
|
---|
| 700 | #endif /* of #if API_PROTO == API_PROTO_IPV4 */
|
---|
| 701 |
|
---|
| 702 | #else /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) */
|
---|
| 703 |
|
---|
| 704 | cep->p_dstaddr = p_dstaddr;
|
---|
| 705 | cep->p_myaddr = p_myaddr;
|
---|
| 706 |
|
---|
| 707 | #endif /* of #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4) */
|
---|
| 708 |
|
---|
| 709 | cep->snd_nblk_tfn = TFN_TCP_CON_CEP;
|
---|
| 710 |
|
---|
| 711 | /* ã³ãã¯ã·ã§ã³ã®éè¨ããã¹ãããã*/
|
---|
| 712 | cep->flags |= TCP_CEP_FLG_POST_OUTPUT;
|
---|
| 713 | sig_sem(SEM_TCP_POST_OUTPUT);
|
---|
| 714 | return E_WBLK;
|
---|
| 715 | }
|
---|
| 716 | else {
|
---|
| 717 |
|
---|
| 718 | #endif /* of #ifdef TCP_CFG_NON_BLOCKING */
|
---|
| 719 |
|
---|
| 720 | /*
|
---|
| 721 | * p_myaddr ã NADR (-1) ãã
|
---|
| 722 | * èªãã¼ãçªå·ã TCP_PORTANY ãªããèªåã§å²ãå½ã¦ãã
|
---|
| 723 | */
|
---|
| 724 | if (p_myaddr == NADR || p_myaddr->portno == TCP_PORTANY)
|
---|
| 725 | tcp_alloc_auto_port(cep);
|
---|
| 726 | else if ((error = tcp_alloc_port(cep, p_myaddr->portno)) != E_OK)
|
---|
| 727 | goto err_ret;
|
---|
| 728 |
|
---|
| 729 | /* ã³ãã¯ã·ã§ã³ã®éè¨ããã¹ãããã*/
|
---|
| 730 | cep->flags |= TCP_CEP_FLG_POST_OUTPUT;
|
---|
| 731 | sig_sem(SEM_TCP_POST_OUTPUT);
|
---|
| 732 |
|
---|
| 733 | /*
|
---|
| 734 | * ã¤ãã³ãã ESTABLISHED ã«ãªãã¾ã§å¾
|
---|
| 735 | ã¤ã
|
---|
| 736 | * ã¤ãã³ãã CLOSED ã«ãªã£ãå ´åã¯ãä½ããã®ã¨ã©ã¼ãçºçãããã
|
---|
| 737 | * æ¥ç¶è¦æ±ãæå¦ããããã¨ãæå³ãã¦ããã
|
---|
| 738 | */
|
---|
| 739 | error = twai_flg(cep->est_flgid, (TCP_CEP_EVT_CLOSED |
|
---|
| 740 | TCP_CEP_EVT_ESTABLISHED), TWF_ORW, &flag, tmout);
|
---|
| 741 | if (error == E_OK) {
|
---|
| 742 | if (cep->error != E_OK)
|
---|
| 743 | error = cep->error;
|
---|
| 744 | else if (cep->fsm_state == TCP_FSM_CLOSED)
|
---|
| 745 | error = E_CLS;
|
---|
| 746 | }
|
---|
| 747 |
|
---|
| 748 | syscall(clr_flg(cep->est_flgid, (FLGPTN)(~TCP_CEP_EVT_ESTABLISHED)));
|
---|
| 749 |
|
---|
| 750 | if (error != E_OK) {
|
---|
| 751 | /*
|
---|
| 752 | * é信端ç¹ããåä»å£ã解æ¾ãã
|
---|
| 753 | * ã¤ãã³ããã©ã°ãã¯ãã¼ãºã«è¨å®ããã
|
---|
| 754 | */
|
---|
| 755 | cep->rep = NULL;
|
---|
| 756 |
|
---|
| 757 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4)
|
---|
| 758 | cep->rep4 = NULL;
|
---|
| 759 | #endif
|
---|
| 760 |
|
---|
| 761 | cep->fsm_state = TCP_FSM_CLOSED;
|
---|
| 762 | syscall(set_flg(cep->est_flgid, TCP_CEP_EVT_CLOSED));
|
---|
| 763 | }
|
---|
| 764 |
|
---|
| 765 | #ifdef TCP_CFG_NON_BLOCKING
|
---|
| 766 |
|
---|
| 767 | }
|
---|
| 768 |
|
---|
| 769 | #endif /* of #ifdef TCP_CFG_NON_BLOCKING */
|
---|
| 770 |
|
---|
| 771 | err_ret:
|
---|
| 772 | cep->snd_tskid = TA_NULL;
|
---|
| 773 | cep->snd_tfn = TFN_TCP_UNDEF;
|
---|
| 774 | return error;
|
---|
| 775 | }
|
---|
| 776 |
|
---|
| 777 | #endif /* of #ifdef __tcp_con_cep */
|
---|