| 1 | /*
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| 2 | * TINET (TCP/IP Protocol Stack)
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| 3 | *
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| 4 | * Copyright (C) 2001-2009 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: ethernet.h 270 2017-02-09 04:03:47Z 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 | * Fundamental constants relating to ethernet.
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| 79 | *
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| 80 | * $FreeBSD: src/sys/net/ethernet.h,v 1.9.2.1 1999/08/29 16:28:13 peter Exp $
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| 81 | *
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| 82 | */
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| 83 |
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| 84 | #ifndef _ETHERNET_H_
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| 85 | #define _ETHERNET_H_
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| 86 |
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| 87 | #ifdef SUPPORT_ETHER
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| 88 |
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| 89 | /*
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| 90 | * ãã£ã¼ã«ãé·
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| 91 | */
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| 92 |
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| 93 | #define ETHER_ADDR_LEN 6 /* Ethernet (MAC) Address */
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| 94 | #define ETHER_TYPE_LEN 2 /* Type */
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| 95 | #define ETHER_CRC_LEN 0/*4*/ /* CRC */
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| 96 |
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| 97 | /*
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| 98 | * ãã¬ã¼ã é· (Ethernet ããã㨠CRC ãå«ã)
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| 99 | */
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| 100 |
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| 101 | #define ETHER_MIN_LEN 64
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| 102 | #define ETHER_MAX_LEN (IF_MTU + sizeof(T_ETHER_HDR) + ETHER_CRC_LEN)
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| 103 |
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| 104 | /*
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| 105 | * Ethernet ããã
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| 106 | */
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| 107 |
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| 108 | #ifndef IF_ETHER_NIC_HDR_ALIGN
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| 109 | #error IF_ETHER_NIC_HDR_ALIGN expected.
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| 110 | #endif /* of #ifndef IF_ETHER_NIC_HDR_ALIGN */
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| 111 |
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| 112 | typedef struct t_ether_header {
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| 113 |
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| 114 | #if IF_ETHER_NIC_HDR_ALIGN != 0
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| 115 |
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| 116 | uint8_t align[IF_ETHER_NIC_HDR_ALIGN]; /* ã¢ã©ã¤ã³èª¿æ´ */
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| 117 |
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| 118 | #endif /* of #if IF_ETHER_NIC_HDR_ALIGN != 0 */
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| 119 |
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| 120 | uint8_t dhost[ETHER_ADDR_LEN];
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| 121 | uint8_t shost[ETHER_ADDR_LEN];
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| 122 | uint16_t type;
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| 123 | } __attribute__((packed, aligned(2)))T_ETHER_HDR;
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| 124 |
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| 125 | #define GET_ETHER_HDR(nbuf) ((T_ETHER_HDR*)((nbuf)->buf))
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| 126 |
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| 127 | /*
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| 128 | * MAC ã¢ãã¬ã¹ã®å®ç¾©
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| 129 | */
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| 130 |
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| 131 | #define ETHER_MCAST_ADDR UINT_C(0x01) /* ãã«ããã£ã¹ãã»ã¢ãã¬ã¹ */
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| 132 | #define ETHER_LOCAL_ADDR UINT_C(0x02) /* ãã¼ã«ã«ã»ã¢ãã¬ã¹ */
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| 133 |
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| 134 | typedef struct t_ether_addr {
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| 135 | uint8_t lladdr[ETHER_ADDR_LEN];
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| 136 | } __attribute__((packed, aligned(2)))T_ETHER_ADDR;
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| 137 |
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| 138 | /*
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| 139 | * Type ãã£ã¼ã«ã
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| 140 | */
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| 141 |
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| 142 | #define ETHER_TYPE_IP UINT_C(0x0800) /* IPv4 */
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| 143 | #define ETHER_TYPE_ARP UINT_C(0x0806) /* ARP */
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| 144 | #define ETHER_TYPE_IPV6 UINT_C(0x86dd) /* IPv6 */
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| 145 |
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| 146 | /*
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| 147 | * ã¤ã³ã¿ãã§ã¼ã¹ã®é¸æãã¯ã
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| 148 | */
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| 149 |
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| 150 | #define T_IF_HDR T_ETHER_HDR /* ã¤ã³ã¿ãã§ã¼ã¹ã®ããã */
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| 151 | #define T_IF_ADDR T_ETHER_ADDR /* ã¤ã³ã¿ãã§ã¼ã¹ã®ã¢ãã¬ã¹ */
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| 152 | #define IF_HDR_ALIGN 2 /* ãããã®ã¢ã©ã¤ã³åä½ */
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| 153 | #define IF_MTU 1500 /* ã¤ã³ã¿ãã§ã¼ã¹ã® MTU */
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| 154 |
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| 155 | #define IF_OUTPUT(o,d,g,t) ether_output(o,d,g,t) /* ã¤ã³ã¿ãã§ã¼ã¹ã®åºåé¢æ° */
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| 156 | #define IF_RAW_OUTPUT(o,t) ether_raw_output(o,t) /* ã¤ã³ã¿ãã§ã¼ã¹ã®åºåé¢æ°ãã¢ãã¬ã¹è§£æ±ºç¡ã */
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| 157 | #define IF_SET_PROTO(b,p) (GET_ETHER_HDR(b)->type = htons(p))
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| 158 | /* ã¤ã³ã¿ãã§ã¼ã¹ã®ãããã³ã«è¨å®é¢æ° */
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| 159 | #define IF_SOFTC_TO_IFADDR(s) ((T_IF_ADDR*)(s)->ifaddr.lladdr)
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| 160 | /* ã½ããã¦ã§ã¢æ
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| 161 | å ±ãã MAC ã¢ãã¬ã¹ãåãåºã */
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| 162 | #define IF_GET_IFNET() ether_get_ifnet() /* ãããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹æ§é ä½ãè¿ãã */
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| 163 | #define IF_TYPE IFT_ETHER /* ã¤ã³ã¿ã¼ãã§ã¼ã¹ã®å */
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| 164 |
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| 165 | /* IPv4 é¢ä¿ */
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| 166 |
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| 167 | #define IF_PROTO_IP ETHER_TYPE_IP /* ã¤ã³ã¿ãã§ã¼ã¹ã® IP ãããã³ã«æå® */
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| 168 | #define IF_PROTO_ARP ETHER_TYPE_ARP /* ã¤ã³ã¿ãã§ã¼ã¹ã® ARP ãããã³ã«æå® */
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| 169 |
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| 170 | /* IPv6 é¢ä¿ */
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| 171 |
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| 172 | #define MAX_IF_MADDR_CNT 2 /* ã¤ã³ã¿ãã§ã¼ã¹ã®ãã«ããã£ã¹ãã¢ãã¬ã¹é
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| 173 | åã®æ大ãµã¤ãº */
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| 174 | #define IF_MADDR_INIT { { { 0, 0, 0, 0, 0, 0 } }, { { 0, 0, 0, 0, 0, 0 } } }
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| 175 | /* ã¤ã³ã¿ãã§ã¼ã¹ã®ãã«ããã£ã¹ãã¢ãã¬ã¹é
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| 176 | åã®åæå */
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| 177 | #define IF_PROTO_IPV6 ETHER_TYPE_IPV6 /* ã¤ã³ã¿ãã§ã¼ã¹ã® IP ãããã³ã«æå® */
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| 178 | #define IF_ADDMULTI(s) IF_ETHER_NIC_ADDMULTI(s)
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| 179 | /* ãã«ããã£ã¹ãã¢ãã¬ã¹ã®ç»é² */
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| 180 | #define IF_IN6_NEED_CACHE(i) (true) /* è¿é£æ¢ç´¢ãã£ãã·ã¥ã使ç¨ããã */
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| 181 | #define IF_IN6_IFID(i,a) IF_ETHER_NIC_IN6_IFID(i,a)
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| 182 | /* ã¤ã³ã¿ãã§ã¼ã¹èå¥åã®è¨å® */
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| 183 | #define IF_IN6_RESOLVE_MULTICAST(i,m) \
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| 184 | ether_in6_resolve_multicast(i,m)
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| 185 | /* ã¤ã³ã¿ãã§ã¼ã¹ã®ãã«ããã£ã¹ãã¢ãã¬ã¹ã¸ã®å¤æ */
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| 186 |
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| 187 | /*
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| 188 | * åæ¹åç
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| 189 | §
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| 190 | */
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| 191 |
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| 192 | #ifndef T_IFNET_DEFINED
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| 193 |
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| 194 | typedef struct t_ifnet T_IFNET;
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| 195 |
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| 196 | #define T_IFNET_DEFINED
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| 197 |
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| 198 | #endif /* of #ifndef T_IFNET_DEFINED */
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| 199 |
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| 200 | #ifndef T_IF_SOFTC_DEFINED
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| 201 |
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| 202 | typedef struct t_if_softc T_IF_SOFTC;
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| 203 |
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| 204 | #define T_IF_SOFTC_DEFINED
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| 205 |
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| 206 | #endif /* of #ifndef T_IF_SOFTC_DEFINED */
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| 207 |
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| 208 | #ifndef T_IN4_ADDR_DEFINED
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| 209 |
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| 210 | typedef uint32_t T_IN4_ADDR;
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| 211 |
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| 212 | #define T_IN4_ADDR_DEFINED
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| 213 |
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| 214 | #endif /* of #ifndef T_IN4_ADDR_DEFINED */
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| 215 |
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| 216 | #ifndef T_NET_BUF_DEFINED
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| 217 |
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| 218 | typedef struct t_net_buf T_NET_BUF;
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| 219 |
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| 220 | #define T_NET_BUF_DEFINED
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| 221 |
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| 222 | #endif /* of #ifndef T_NET_BUF_DEFINED */
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| 223 |
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| 224 | /*
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| 225 | * ãããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ã«ä¾åããªãã½ããã¦ã§ã¢æ
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| 226 | å ±
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| 227 | */
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| 228 |
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| 229 | #ifdef T_IF_ETHER_NIC_SOFTC
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| 230 |
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| 231 | struct t_if_softc {
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| 232 | T_IF_ADDR ifaddr; /* ãããã¯ã¼ã¯ã¤ã³ã¿ãã§ã¼ã¹ã®ã¢ãã¬ã¹ */
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| 233 | uint16_t timer; /* éä¿¡ã¿ã¤ã ã¢ã¦ã */
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| 234 | T_IF_ETHER_NIC_SOFTC *sc; /* ãã£ãã¤ã¹ä¾åã®ã½ããã¦ã§ã¢æ
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| 235 | å ± */
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| 236 | ID semid_txb_ready; /* éä¿¡ã»ããã© */
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| 237 | ID semid_rxb_ready; /* åä¿¡ã»ããã© */
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| 238 |
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| 239 | #ifdef SUPPORT_INET6
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| 240 |
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| 241 | T_IF_ADDR maddrs[MAX_IF_MADDR_CNT]; /* ãã«ããã£ã¹ãã¢ãã¬ã¹ãªã¹ã */
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| 242 |
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| 243 | #endif /* of #ifdef SUPPORT_INET6 */
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| 244 | };
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| 245 |
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| 246 | #endif /* of #ifdef T_IF_ETHER_NIC_SOFTC */
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| 247 |
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| 248 | #define IF_FLAG_UP 0x01U
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| 249 | #define IF_FLAG_LINK_UP 0x10U
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| 250 |
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| 251 | #ifdef SUPPORT_INET6
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| 252 |
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| 253 | /* åæ¹åç
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| 254 | § */
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| 255 |
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| 256 | #ifndef T_IN6_ADDR_DEFINED
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| 257 |
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| 258 | typedef struct t_in6_addr T_IN6_ADDR;
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| 259 |
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| 260 | #define T_IN6_ADDR_DEFINED
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| 261 |
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| 262 | #endif /* of #ifndef T_IN6_ADDR_DEFINED */
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| 263 |
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| 264 | /*
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| 265 | * é¢æ°
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| 266 | */
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| 267 |
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| 268 | extern ER ether_in6_resolve_multicast(T_ETHER_ADDR *ifaddr, T_IN6_ADDR *maddr);
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| 269 |
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| 270 | #endif /* of #ifdef SUPPORT_INET6 */
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| 271 |
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| 272 | /*
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| 273 | * é¢æ°
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| 274 | */
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| 275 |
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| 276 | extern T_IFNET *ether_get_ifnet (void);
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| 277 | extern ER ether_output (T_NET_BUF *data, void *dst, T_IF_ADDR *gw, TMO tmout);
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| 278 | extern ER ether_raw_output (T_NET_BUF *data, TMO tmout);
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| 279 |
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| 280 | /** Function prototype for netif status- or link-callback functions. */
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| 281 | typedef void (*ether_status_callback_fn)(T_IFNET *ether);
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| 282 | extern void ether_set_link_callback(ether_status_callback_fn link_callback);
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| 283 | extern void ether_set_link_up(T_IFNET *ether);
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| 284 | extern void ether_set_link_down(T_IFNET *ether);
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| 285 |
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| 286 | #endif /* of #ifdef SUPPORT_ETHER */
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| 287 |
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| 288 | #endif /* of #ifndef _ETHERNET_H_ */
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