[388] | 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: netappn_subr.c 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 | * ãããã¯ã¼ã¯å¿ç¨ããã°ã©ã ãµãã¼ãã«ã¼ãã³
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| 48 | */
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| 49 |
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| 50 | #ifdef USE_TCP_EXTENTIONS
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| 51 |
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| 52 | /*
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| 53 | * alloc_tcp_rep -- TCP åä»å£ãç²å¾ããã
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| 54 | */
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| 55 |
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| 56 | ER
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| 57 | ALLOC_TCP_REP (ID *repid, ID tskid, T_TCPN_CREP *crep)
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| 58 | {
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| 59 | int_t ix;
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| 60 |
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| 61 | *repid = TCP_REP_NONE;
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| 62 | syscall(wai_sem(SEM_ALLOC_TCP_REP_LOCK));
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| 63 | for (ix = NUM_VRID_TCP_REPS; ix -- > 0; ) {
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| 64 | if (TSKID_TCP_REP[ix] == TSK_NONE) {
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| 65 | *repid = VRID_TCP_REP[ix];
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| 66 | TSKID_TCP_REP[ix] = tskid;
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| 67 | break;
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| 68 | }
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| 69 | }
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| 70 | syscall(sig_sem(SEM_ALLOC_TCP_REP_LOCK));
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| 71 |
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| 72 | if (*repid == TCP_REP_NONE)
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| 73 | return E_NOEXS;
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| 74 | else
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| 75 | return TCP_CRE_REP(*repid, crep);
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| 76 | }
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| 77 |
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| 78 | /*
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| 79 | * free_tcp_rep -- TCP åä»å£ã解æ¾ããã
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| 80 | */
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| 81 |
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| 82 | ER
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| 83 | FREE_TCP_REP (ID repid, bool_t call_tcp_del_rep)
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| 84 | {
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| 85 | int_t ix;
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| 86 |
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| 87 | syscall(wai_sem(SEM_ALLOC_TCP_REP_LOCK));
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| 88 | for (ix = NUM_VRID_TCP_REPS; ix -- > 0; ) {
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| 89 | if (repid == VRID_TCP_REP[ix]) {
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| 90 | TSKID_TCP_REP[ix] = TSK_NONE;
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| 91 | break;
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| 92 | }
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| 93 | }
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| 94 | syscall(sig_sem(SEM_ALLOC_TCP_REP_LOCK));
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| 95 |
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| 96 | if (call_tcp_del_rep)
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| 97 | return tcp_del_rep(repid);
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| 98 | else
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| 99 | return E_OK;
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| 100 | }
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| 101 |
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| 102 | /*
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| 103 | * tcpn_is_cepid -- TCP é信端ç¹ãæå®ããããããã¯ã¼ã¯å±¤ãªã true ãè¿ãã
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| 104 | */
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| 105 |
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| 106 | bool_t
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| 107 | TCP_IS_CEPID (ID cepid)
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| 108 | {
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| 109 | int_t ix;
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| 110 |
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| 111 | for (ix = NUM_VRID_TCP_CEPS; ix -- > 0; ) {
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| 112 | if (cepid == VRID_TCP_CEP[ix])
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| 113 | return true;
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| 114 | }
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| 115 | return false;
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| 116 | }
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| 117 |
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| 118 | /*
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| 119 | * alloc_tcp_cep -- TCP é信端ç¹ãç²å¾ããã
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| 120 | */
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| 121 |
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| 122 | ER
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| 123 | ALLOC_TCP_CEP (ID *cepid, ID tskid, T_TCP_CCEP *ccep)
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| 124 | {
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| 125 | int_t ix;
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| 126 |
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| 127 | *cepid = TCP_CEP_NONE;
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| 128 | syscall(wai_sem(SEM_ALLOC_TCP_CEP_LOCK));
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| 129 | for (ix = NUM_VRID_TCP_CEPS; ix -- > 0; ) {
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| 130 | if (TSKID_TCP_CEP[ix] == TSK_NONE) {
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| 131 | *cepid = VRID_TCP_CEP[ix];
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| 132 | TSKID_TCP_CEP[ix] = tskid;
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| 133 | break;
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| 134 | }
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| 135 | }
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| 136 | syscall(sig_sem(SEM_ALLOC_TCP_CEP_LOCK));
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| 137 |
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| 138 | if (*cepid == TCP_CEP_NONE)
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| 139 | return E_NOEXS;
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| 140 | else
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| 141 | return tcp_cre_cep(*cepid, ccep);
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| 142 | }
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| 143 |
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| 144 | /*
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| 145 | * free_tcp_cep -- TCP é信端ç¹ã解æ¾ããã
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| 146 | */
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| 147 |
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| 148 | ER
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| 149 | FREE_TCP_CEP (ID cepid)
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| 150 | {
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| 151 | int_t ix;
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| 152 |
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| 153 | syscall(wai_sem(SEM_ALLOC_TCP_CEP_LOCK));
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| 154 | for (ix = NUM_VRID_TCP_CEPS; ix -- > 0; ) {
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| 155 | if (cepid == VRID_TCP_CEP[ix]) {
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| 156 | TSKID_TCP_CEP[ix] = TSK_NONE;
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| 157 | break;
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| 158 | }
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| 159 | }
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| 160 | syscall(sig_sem(SEM_ALLOC_TCP_CEP_LOCK));
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| 161 |
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| 162 | return tcp_del_cep(cepid);
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| 163 | }
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| 164 |
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| 165 | #endif /* of #ifdef USE_TCP_EXTENTIONS */
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| 166 |
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| 167 | #ifdef USE_UDP_EXTENTIONS
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| 168 |
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| 169 | /*
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| 170 | * alloc_udp_cep -- UDP é信端ç¹ãç²å¾ããã
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| 171 | */
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| 172 |
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| 173 | ER
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| 174 | ALLOC_UDP_CEP (ID *cepid, ID tskid, T_UDPN_CCEP *ccep)
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| 175 | {
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| 176 | int_t ix;
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| 177 |
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| 178 | *cepid = UDP_CEP_NONE;
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| 179 | syscall(wai_sem(SEM_ALLOC_UDP_CEP_LOCK));
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| 180 | for (ix = NUM_VRID_UDP_CEPS; ix -- > 0; ) {
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| 181 | if (TSKID_UDP_CEP[ix] == TSK_NONE) {
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| 182 | *cepid = VRID_UDP_CEP[ix];
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| 183 | TSKID_UDP_CEP[ix] = tskid;
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| 184 | break;
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| 185 | }
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| 186 | }
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| 187 | syscall(sig_sem(SEM_ALLOC_UDP_CEP_LOCK));
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| 188 |
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| 189 | if (*cepid == UDP_CEP_NONE)
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| 190 | return E_NOEXS;
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| 191 | else
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| 192 | return UDP_CRE_CEP(*cepid, ccep);
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| 193 | }
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| 194 |
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| 195 | /*
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| 196 | * free_udp_cep -- UDP é信端ç¹ã解æ¾ããã
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| 197 | */
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| 198 |
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| 199 | ER
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| 200 | FREE_UDP_CEP (ID cepid, bool_t call_udp_del_cep)
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| 201 | {
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| 202 | int_t ix;
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| 203 |
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| 204 | syscall(wai_sem(SEM_ALLOC_UDP_CEP_LOCK));
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| 205 | for (ix = NUM_VRID_UDP_CEPS; ix -- > 0; ) {
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| 206 | if (cepid == VRID_UDP_CEP[ix]) {
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| 207 | TSKID_UDP_CEP[ix] = TSK_NONE;
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| 208 | break;
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| 209 | }
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| 210 | }
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| 211 | syscall(sig_sem(SEM_ALLOC_UDP_CEP_LOCK));
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| 212 |
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| 213 | if (call_udp_del_cep)
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| 214 | return UDP_DEL_CEP(cepid);
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| 215 | else
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| 216 | return E_OK;
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| 217 | }
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| 218 |
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| 219 | #endif /* of #ifdef USE_UDP_EXTENTIONS */
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