[331] | 1 | /*
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| 2 | * TINET (TCP/IP Protocol Stack)
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| 3 | *
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| 4 | * Copyright (C) 2001-2012 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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[429] | 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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[331] | 25 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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[429] | 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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[331] | 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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[429] | 37 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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[331] | 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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[429] | 40 | * å«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´
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[331] | 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 | * @(#) $Id$
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| 44 | */
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[429] | 45 |
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| 46 | #ifndef _IP_IGMP_H_
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| 47 | #define _IP_IGMP_H_
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| 48 |
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| 49 | #define NUM_IGMP_ENTRY 5 /* ãã«ããã£ã¹ãã°ã«ã¼ãã®ã¨ã³ããªæ° */
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[331] | 50 |
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| 51 | /*
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[429] | 52 | * IGMPv1 ãããã®å®ç¾©ãRFC 1112
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[331] | 53 | */
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| 54 |
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| 55 | typedef struct t_igmpv1_hdr
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| 56 | {
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[429] | 57 | uint8_t type; /* ã¡ãã»ã¼ã¸ã®å */
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| 58 | uint8_t unused; /* æªä½¿ç¨ */
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| 59 | uint16_t sum; /* ãã§ãã¯ãµã */
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| 60 | T_IN4_ADDR addr; /* ã°ã«ã¼ãã¢ãã¬ã¹ */
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| 61 | } __attribute__((packed)) T_IGMPV1_HDR;
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[331] | 62 |
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| 63 | /*
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| 64 | * IGMPv2 ãããã®å®ç¾©ãRFC 2236
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[429] | 65 | */
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| 66 |
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| 67 | typedef struct t_igmpv2_hdr
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| 68 | {
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| 69 | uint8_t type; /* ã¡ãã»ã¼ã¸ã®å */
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[331] | 70 | uint8_t time; /* æ大å¿çæé */
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[429] | 71 | uint16_t sum; /* ãã§ãã¯ãµã */
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| 72 | T_IN4_ADDR addr; /* ã°ã«ã¼ãã¢ãã¬ã¹ */
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| 73 | } __attribute__((packed)) T_IGMPV2_HDR;
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[331] | 74 |
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| 75 | typedef struct t_igmpv3_query_hdr
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| 76 | {
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[429] | 77 | uint8_t type; /* ã¡ãã»ã¼ã¸ã®å */
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| 78 | uint8_t time; /* æ大å¿çæé */
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| 79 | uint16_t sum; /* ãã§ãã¯ãµã */
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| 80 | T_IN4_ADDR grpaddr; /* ã°ã«ã¼ãã¢ãã¬ã¹ */
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| 81 | uint8_t sqrv; /* Sãã©ã°ãQuerier Robustness Value */
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| 82 | uint8_t qqic; /* Qurier's Query Interval Code */
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| 83 | uint16_t num; /* éä¿¡å
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[331] | 84 | ã®æ° */
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| 85 | T_IN4_ADDR sdraddr; /* éä¿¡å
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| 86 | ã¢ãã¬ã¹ */
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[429] | 87 | } __attribute__((packed)) T_IGMPV3Q_HDR;
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| 88 |
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| 89 | typedef struct t_igmp_group_record
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| 90 | {
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| 91 | uint8_t type; /* ã¡ãã»ã¼ã¸ã®å */
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| 92 | uint8_t len; /* è£å©ãã¼ã¿é· */
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| 93 | uint16_t num; /* éä¿¡å
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[331] | 94 | ã®æ° */
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| 95 | T_IN4_ADDR grpaddr; /* ã°ã«ã¼ãã¢ãã¬ã¹ */
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| 96 | T_IN4_ADDR sdraddr; /* éä¿¡å
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| 97 | ã¢ãã¬ã¹ */
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| 98 | /* è£å©ãã¼ã¿ */
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| 99 | } __attribute__((packed)) T_IGMP_GROUP_RECORD;
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| 100 |
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| 101 | typedef struct t_igmpv3_report_hdr
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| 102 | {
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| 103 | uint8_t type; /* ã¡ãã»ã¼ã¸ã®å */
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| 104 | uint8_t rsv1; /* äºç´ */
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| 105 | uint16_t sum; /* ãã§ãã¯ãµã */
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| 106 | uint16_t rsv2; /* äºç´ */
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[429] | 107 | uint16_t num; /* ã°ã«ã¼ãã¬ã³ã¼ãã®æ° */
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[331] | 108 | T_IGMP_GROUP_RECORD record; /* ã°ã«ã¼ãã¬ã³ã¼ã */
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| 109 | } __attribute__((packed)) T_IGMPV3R_HDR;
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[429] | 110 |
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| 111 | #define IGMP_HDR_SIZE (sizeof(T_IGMPV1_HDR))
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| 112 | #define IP4_IGMP_HDR_SIZE (IP4_HDR_SIZE + IGMP_HDR_SIZE)
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| 113 | #define IF_IP4_IGMP_HDR_SIZE (IF_IP4_HDR_SIZE + IGMP_HDR_SIZE)
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| 114 | #define IF_IP4_IGMP_HDR_OFFSET (IF_IP4_HDR_SIZE)
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[331] | 115 |
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| 116 | #define GET_IGMPV1_HDR(nbuf,ihoff) ((T_IGMPV1_HDR*)((uint8_t*)((nbuf)->buf) + ihoff))
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[429] | 117 | #define GET_IGMPV2_HDR(nbuf,ihoff) ((T_IGMPV2_HDR*)((uint8_t*)((nbuf)->buf) + ihoff))
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[331] | 118 | #define GET_IGMPV3Q_HDR(nbuf,ihoff) ((T_IGMPV3Q_HDR*)((uint8_t*)((nbuf)->buf) + ihoff))
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| 119 | #define GET_IGMPV3R_HDR(nbuf,ihoff) ((T_IGMPV3R_HDR*)((uint8_t*)((nbuf)->buf) + ihoff))
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| 120 | #define GET_IGMP_SDU(nbuf,ihoff) ((uint8_t*)((nbuf)->buf) + ihoff + IGMP_HDR_SIZE)
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| 121 |
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| 122 | /*
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| 123 | * ã¡ãã»ã¼ã¸ã®å
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| 124 | */
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| 125 |
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| 126 | #define IGMP_MEMBERSHIP_QUERY 0x11 /* ã¡ã³ãã¼ã·ããã¯ã¨ãªã¼ */
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| 127 | #define IGMP_MEMBERSHIP_REPORT 0x12 /* ã¡ã³ãã¼ã·ããã¬ãã¼ã */
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| 128 | #define IGMP_MEMBERSHIP_REPORT_V2 0x16 /* ã¡ã³ãã¼ã·ããã¬ãã¼ã */
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| 129 | #define IGMP_LEAVE_GROUP 0x17 /* ãªã¼ãã°ã«ã¼ã */
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| 130 | #define IGMP_MEMBERSHIP_REPORT_V3 0x22 /* ã¡ã³ãã¼ã·ããã¬ãã¼ã */
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| 131 |
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| 132 | /*
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| 133 | * UDPé信端ç¹ãªãã·ã§ã³
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| 134 | */
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| 135 |
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| 136 | typedef struct ip_mreq
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| 137 | {
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| 138 | T_IN4_ADDR imr_multiaddr; /* IP multicast address of group */
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| 139 | T_IN4_ADDR imr_interface; /* local IP address of interface */
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| 140 | } T_IP_MREQ;
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| 141 |
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| 142 | typedef struct ip_msfilter
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| 143 | {
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| 144 | T_IN4_ADDR imsf_multiaddr; /* IP multicast group address */
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| 145 | T_IN4_ADDR imsf_interface; /* IP address of local interface */
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| 146 | uint32_t imsf_fmode; /* Filter-mode */
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| 147 | uint32_t imsf_numsrc; /* Number of sources in the following array */
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| 148 | T_IN4_ADDR imsf_slist[1]; /* Array of source addresses */
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| 149 | } T_IP_MSFILTER;
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[429] | 150 |
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[331] | 151 | #define MCAST_INCLUDE 1
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| 152 | #define MCAST_EXCLUDE 2
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| 153 |
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| 154 | extern ER igmp_set_loop(T_UDP_CEP *cep, uint8_t optval);
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[429] | 155 | extern ER igmp_get_loop(T_UDP_CEP *cep, uint8_t *optval);
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| 156 | extern ER igmp_set_ttl(T_UDP_CEP *cep, uint8_t optval);
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| 157 | extern ER igmp_get_ttl(T_UDP_CEP *cep, uint8_t *optval);
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[331] | 158 | extern ER igmp_set_if(T_UDP_CEP *cep, T_IN4_ADDR *optval);
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| 159 | extern ER igmp_get_if(T_UDP_CEP *cep, T_IN4_ADDR *optval);
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| 160 | extern ER igmp_add_membership(T_UDP_CEP *cep, T_IP_MREQ *optval);
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| 161 | extern ER igmp_drop_membership(T_UDP_CEP *cep, T_IP_MREQ *optval);
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| 162 | extern ER igmp_set_ip_msfilter(T_UDP_CEP *cep, const T_IP_MSFILTER *optval);
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| 163 | extern ER igmp_get_ip_msfilter(T_UDP_CEP *cep, T_IP_MSFILTER *optval);
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| 164 |
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| 165 | /*
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| 166 | * IGMP ã°ã«ã¼ãã¨ã³ããª
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| 167 | */
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| 168 |
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| 169 | typedef struct igmp_entry
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| 170 | {
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| 171 | int16_t timer; /* éä¿¡ã¾ã§ã®æé[ç§] */
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| 172 | int16_t resptime; /* æ大å¿çæé[ç§] */
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| 173 | T_IN4_ADDR ip_addr; /* IP ã¢ãã¬ã¹ */
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| 174 | } T_IGMP_ENTRY;
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| 175 |
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| 176 | extern void igmp_init(void);
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| 177 | extern bool_t igmp_is_joined_group(T_IN4_ADDR addr);
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| 178 | extern uint_t igmp_input(T_NET_BUF **inputp, uint_t *offp, uint_t *nextp);
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| 179 |
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| 180 | #endif /* of #ifndef _IP_IGMP_H_ */
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