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: udp_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) 1982, 1986, 1989, 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 | * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
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79 | * $FreeBSD: src/sys/netinet/udp_var.h,v 1.16.2.2 1999/08/29 16:29:59 peter Exp $
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80 | */
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81 |
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82 | #ifndef _UDP_VAR_H_
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83 | #define _UDP_VAR_H_
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84 |
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85 | /*
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86 | * UDP ãããã»ãã¤ãã¼ãã¢ã¯ã»ã¹ãã¯ã
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87 | */
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88 |
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89 | #define GET_UDP_HDR(nbuf,uhoff) ((T_UDP_HDR*)((uint8_t*)((nbuf)->buf) + uhoff))
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90 | #define GET_UDP_HDR_OFFSET(nbuf) (GET_IF_IP_HDR_SIZE(nbuf))
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91 | #define GET_UDP_SDU(nbuf,uhoff) ((uint8_t*)((nbuf)->buf) + uhoff+ UDP_HDR_SIZE)
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92 |
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93 | #define IF_IP_UDP_HDR_SIZE(nbuf) (IF_IP_HDR_SIZE(nbuf) + UDP_HDR_SIZE)
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94 | #define IF_IP_UDP_HDR_OFFSET(nbuf) (IF_IP_HDR_SIZE(nbuf))
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95 |
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96 | /*
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97 | * TINET 1.1 ã¨ã®äºææ§ã®ããã®å®ç¾©
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98 | */
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99 |
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100 | #if defined(_IP4_CFG)
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101 |
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102 | #define IP4_UDP_HDR_SIZE IP_UDP_HDR_SIZE
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103 | #define IF_IP4_UDP_HDR_SIZE IF_IP_UDP_HDR_SIZE
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104 | #define GET_IP4_UDP_HDR_SIZE(nbuf) GET_IP_UDP_HDR_SIZE(nbuf)
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105 | #define GET_IF_IP4_UDP_HDR_SIZE(nbuf) GET_IF_IP_UDP_HDR_SIZE(nbuf)
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106 |
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107 | #endif /* of #if defined(_IP4_CFG) */
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108 |
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109 | /*
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110 | * ã³ã¼ã«ããã¯é¢æ°ã®å®ç¾©
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111 | */
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112 |
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113 | typedef ER (*t_udp_callback)(ID cepid, FN fncd, void *p_parblk);
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114 |
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115 | typedef struct t_udp_rcv_dat_para {
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116 | uint_t len;
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117 | T_NET_BUF *input;
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118 | uint_t off;
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119 | union {
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120 | T_IPV4EP rep4;
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121 | T_IPV6EP rep6;
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122 | };
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123 | } T_UDP_RCV_DAT_PARA;
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124 |
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125 | /*
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126 | * UDP é信端ç¹
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127 | */
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128 |
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129 | /* IPv6 ç¨ UDP éä¿¡ç«¯ç¹ */
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130 |
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131 | typedef struct t_udp6_cep {
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132 |
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133 | /*
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134 | * ITRON TCP/IP APIãTCP é信端ç¹ã¨åãã¡ã³ã
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135 | */
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136 | ATR cepatr; /* UDP é信端ç¹å±æ§ */
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137 | T_IPV6EP myaddr; /* èªåã®ã¢ãã¬ã¹ */
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138 | t_udp_callback callback; /* ã³ã¼ã«ããã¯é¢æ° */
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139 |
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140 | /*
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141 | * TINET ç¬èªã®ã¡ã³ã
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142 | */
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143 | uint16_t flags; /* é信端ç¹ãã©ã° */
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144 | ID semid_lock; /* é信端ç¹ãã㯠*/
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145 | ID snd_tskid; /* éä¿¡ã¿ã¹ã¯èå¥å */
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146 | ID rcv_tskid; /* åä¿¡ã¿ã¹ã¯èå¥å */
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147 | ID rcvqid; /* éã³ã¼ã«ããã¯ç¨åä¿¡ãã¥ã¼èå¥å*/
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148 | T_NET_BUF *cb_netbuf; /* ã³ã¼ã«ããã¯ç¨åä¿¡ãããã¯ã¼ã¯ãããã¡*/
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149 |
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150 | #ifdef UDP_CFG_NON_BLOCKING
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151 |
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152 | T_IPV6EP *snd_p_dstaddr; /* éä¿¡ç¸æã®ã¢ãã¬ã¹ã¸ã®ãã¤ã³ã¿*/
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153 | T_IPV6EP *rcv_p_dstaddr; /* åä¿¡ç¸æã®ã¢ãã¬ã¹ã¸ã®ãã¤ã³ã¿*/
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154 | void *snd_data; /* éä¿¡ãã¼ã¿é åã®å
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155 | é ã¢ãã¬ã¹ */
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156 | int_t snd_len; /* éä¿¡ãã¼ã¿é åã®é·ã */
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157 | void *rcv_data; /* åä¿¡ãã¼ã¿é åã®å
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158 | é ã¢ãã¬ã¹ */
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159 | int_t rcv_len; /* åä¿¡ãã¼ã¿é åã®é·ã */
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160 |
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161 | #endif /* of #ifdef UDP_CFG_NON_BLOCKING */
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162 |
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163 | #ifdef UDP_CFG_EXTENTIONS
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164 | ER error; /* å¾
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165 | ã¡ä¸ã«çºçããã¨ã©ã¼ */
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166 | #endif
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167 |
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168 | #ifdef SUPPORT_IGMP
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169 | bool_t igmp_loopback;
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170 | uint8_t igmp_ttl;
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171 | T_IN4_ADDR igmp_mcaddr; /* */
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172 | #endif
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173 |
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174 | } T_UDP6_CEP;
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175 |
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176 | /* IPv4 ç¨ UDP éä¿¡ç«¯ç¹ */
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177 |
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178 | typedef struct t_udp4_cep {
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179 |
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180 | /*
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181 | * ITRON TCP/IP APIãTCP é信端ç¹ã¨åãã¡ã³ã
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182 | */
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183 | ATR cepatr; /* UDP é信端ç¹å±æ§ */
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184 | T_IPV4EP myaddr; /* èªåã®ã¢ãã¬ã¹ */
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185 | t_udp_callback callback; /* ã³ã¼ã«ããã¯é¢æ° */
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186 |
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187 | /*
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188 | * TINET ç¬èªã®ã¡ã³ã
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189 | */
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190 | uint16_t flags; /* é信端ç¹ãã©ã° */
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191 | ID semid_lock; /* é信端ç¹ãã㯠*/
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192 | ID snd_tskid; /* éä¿¡ã¿ã¹ã¯èå¥å */
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193 | ID rcv_tskid; /* åä¿¡ã¿ã¹ã¯èå¥å */
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194 | ID rcvqid; /* éã³ã¼ã«ããã¯ç¨åä¿¡ãã¥ã¼èå¥å*/
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195 | T_NET_BUF *cb_netbuf; /* ã³ã¼ã«ããã¯ç¨åä¿¡ãããã¯ã¼ã¯ãããã¡*/
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196 |
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197 | #ifdef UDP_CFG_NON_BLOCKING
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198 |
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199 | T_IPV4EP *snd_p_dstaddr; /* éä¿¡ç¸æã®ã¢ãã¬ã¹ã¸ã®ãã¤ã³ã¿*/
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200 | T_IPV4EP *rcv_p_dstaddr; /* åä¿¡ç¸æã®ã¢ãã¬ã¹ã¸ã®ãã¤ã³ã¿*/
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201 | void *snd_data; /* éä¿¡ãã¼ã¿é åã®å
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202 | é ã¢ãã¬ã¹ */
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203 | int_t snd_len; /* éä¿¡ãã¼ã¿é åã®é·ã */
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204 | void *rcv_data; /* åä¿¡ãã¼ã¿é åã®å
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205 | é ã¢ãã¬ã¹ */
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206 | int_t rcv_len; /* åä¿¡ãã¼ã¿é åã®é·ã */
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207 |
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208 | #endif /* of #ifdef UDP_CFG_NON_BLOCKING */
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209 |
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210 | #ifdef UDP_CFG_EXTENTIONS
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211 | ER error; /* å¾
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212 | ã¡ä¸ã«çºçããã¨ã©ã¼ */
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213 | #endif
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214 |
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215 | #ifdef SUPPORT_IGMP
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216 | bool_t igmp_loopback;
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217 | uint8_t igmp_ttl;
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218 | T_IN4_ADDR igmp_mcaddr; /* */
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219 | #endif
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220 |
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221 | } T_UDP4_CEP;
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222 |
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223 | #if defined(_IP6_CFG)
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224 |
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225 | #define T_UDP_CEP T_UDP6_CEP
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226 |
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227 | #else /* of #if defined(_IP6_CFG) */
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228 |
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229 | #if defined(_IP4_CFG)
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230 |
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231 | #define T_UDP_CEP T_UDP4_CEP
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232 |
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233 | #endif /* of #if defined(_IP4_CFG) */
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234 |
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235 | #endif /* of #if defined(_IP6_CFG) */
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236 |
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237 | /*
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238 | * UDP é信端ç¹ãã©ã°
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239 | */
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240 |
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241 | #define UDP_CEP_FLG_POST_OUTPUT UINT_C(0x0200) /* éä¿¡ãéå§ããã */
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242 | #define UDP_CEP_FLG_DYNAMIC UINT_C(0x0400) /* åççæã»åé¤å¯è½é信端ç¹ã */
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243 | #define UDP_CEP_FLG_VALID UINT_C(0x0800) /* çææ¸ã¿ã§æå¹ãªé信端ç¹ã */
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244 |
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245 | /*
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246 | * ãªãã¸ã§ã¯ã ID ã®æå°å¤ã®å®ç¾©
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247 | */
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248 |
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249 | #define TMIN_UDP_CEPID 1 /* UDP éä¿¡ç«¯ç¹ ID ã®æå°å¤ */
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250 | #define TMIN_UDP6_CEPID 1 /* UDP/IPv6 éä¿¡ç«¯ç¹ ID ã®æå°å¤ */
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251 | #define TMIN_UDP4_CEPID (TNUM_UDP6_CEPID+1) /* UDP/IPv4 éä¿¡ç«¯ç¹ ID ã®æå°å¤ */
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252 |
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253 | /*
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254 | * SNMP 㮠管çæ
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255 | å ±ãã¼ã¹ (MIB)
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256 | */
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257 |
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258 | typedef struct t_udp_stats {
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259 | uint32_t udpInDatagrams;
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260 | uint32_t udpNoPorts;
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261 | uint32_t udpInErrors;
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262 | uint32_t udpOutDatagrams;
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263 | } T_UDP_STATS;
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264 |
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265 | /*
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266 | * é¢æ°ã·ãã¥ã¬ã¼ã·ã§ã³ãã¯ã
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267 | */
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268 |
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269 | #define VALID_UDP6_CEPID(id) (TMIN_UDP6_CEPID<=(id)&&(id)<=tmax_udp6_cepid)
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270 | #define VALID_UDP4_CEPID(id) (TMIN_UDP4_CEPID<=(id)&&(id)<=tmax_udp4_cepid)
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271 |
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272 | #define INDEX_UDP6_CEP(id) ((id)-TMIN_UDP6_CEPID)
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273 | #define INDEX_UDP4_CEP(id) ((id)-TMIN_UDP4_CEPID)
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274 |
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275 | #define GET_UDP6_CEP(id) (&(udp6_cep[INDEX_UDP6_CEP(id)]))
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276 | #define GET_UDP4_CEP(id) (&(udp4_cep[INDEX_UDP4_CEP(id)]))
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277 |
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278 | #define GET_UDP6_CEPID(cep) ((ID)(((cep)-udp6_cep)+TMIN_UDP6_CEPID))
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279 | #define GET_UDP4_CEPID(cep) ((ID)(((cep)-udp4_cep)+TMIN_UDP4_CEPID))
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280 |
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281 | #define VALID_TFN_UDP_CAN(t) ((t)==TFN_UDP_SND_DAT||(t)==TFN_UDP_RCV_DAT||\
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282 | (t)==TFN_UDP_ALL)
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283 |
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284 | #define VALID_UDP_CEP(cep) (((cep)->flags&UDP_CEP_FLG_VALID)!=0)
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285 | #define DYNAMIC_UDP_CEP(cep) (((cep)->flags&UDP_CEP_FLG_DYNAMIC)!=0)
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286 |
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287 | /*
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288 | * å
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289 | ¨åå¤æ°
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290 | */
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291 |
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292 | extern T_UDP_STATS udp_stats;
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293 |
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294 | /* UDP éä¿¡ç«¯ç¹ */
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295 |
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296 | extern T_UDP6_CEP udp6_cep[];
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297 | extern T_UDP4_CEP udp4_cep[];
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298 |
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299 | #if defined(SUPPORT_INET6)
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300 | #define udp_cep udp6_cep
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301 | #elif defined(SUPPORT_INET4)
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302 | #define udp_cep udp4_cep
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303 | #endif
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304 |
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305 | extern const ID tmax_udp_cepid;
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306 |
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307 | #if defined(SUPPORT_INET6) && defined(SUPPORT_INET4)
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308 | extern const ID tmax_udp6_cepid;
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309 | extern const ID tmax_udp4_cepid;
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310 | #else
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311 | #define tmax_udp6_cepid tmax_udp_cepid
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312 | #define tmax_udp4_cepid tmax_udp_cepid
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313 | #endif
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314 |
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315 | /*
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316 | * TINET 1.3 ã¨ã®äºææ§ã®ããã®å®ç¾©
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317 | */
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318 |
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319 | #define TMIN_UDP_CCEPID TMIN_UDP_CEPID
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320 | #define TNUM_UDP_CCEPID TNUM_UDP_CEPID
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321 |
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322 | /*
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323 | * é¢æ°
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324 | */
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325 |
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326 | /* IPv6 */
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327 |
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328 | extern uint_t udp6_input (T_NET_BUF **inputp, uint_t *offp, uint_t *nextp);
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329 | extern ER_UINT udp6_send_data (T_UDP6_CEP *cep, T_IPV6EP *p_dstaddr,
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330 | void *data, int_t len, TMO tmout);
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331 | extern ER udp6_can_snd (T_UDP6_CEP *cep, ER error);
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332 | extern ER udp6_can_rcv (T_UDP6_CEP *cep, ER error);
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333 | extern ER udp6_alloc_auto_port (T_UDP6_CEP *cep);
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334 | extern ER udp6_alloc_port (T_UDP6_CEP *cep, uint16_t portno);
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335 | extern T_UDP6_CEP*udp6_find_cep (T_NET_BUF *input, uint_t off);
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336 | extern void udp6_notify (T_NET_BUF *input, ER error);
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337 | extern void udp6_input_select (T_UDP6_CEP *cep, T_NET_BUF *input, uint_t off);
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338 |
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339 | /* IPv4 */
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340 |
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341 | extern uint_t udp4_input (T_NET_BUF **inputp, uint_t *offp, uint_t *nextp);
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342 | extern ER_UINT udp4_send_data (T_UDP4_CEP *cep, T_IPV4EP *p_dstaddr,
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343 | void *data, int_t len, TMO tmout);
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344 | extern ER udp4_can_snd (T_UDP4_CEP *cep, ER error);
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345 | extern ER udp4_can_rcv (T_UDP4_CEP *cep, ER error);
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346 | extern ER udp4_alloc_auto_port (T_UDP4_CEP *cep);
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347 | extern ER udp4_alloc_port (T_UDP4_CEP *cep, uint16_t portno);
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348 | extern T_UDP4_CEP*udp4_find_cep (T_NET_BUF *input, uint_t off);
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349 | extern void udp4_notify (T_NET_BUF *input, ER error);
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350 | extern void udp4_input_select (T_UDP4_CEP *cep, T_NET_BUF *input, uint_t off);
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351 |
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352 | /* ãã³ããããã³ã°ã³ã¼ã«ãè¡ãå ´åã«çµã¿è¾¼ãã¿ã¹ã¯ */
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353 |
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354 | extern void udp_output_task(intptr_t exinf);
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355 |
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356 | #endif /* of #ifndef _UDP_VAR_H_ */
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