projects / apple / xnu.git / blame
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|---|---|---|
| 55e303ae A |
1 | /* |
| 2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 37839358 A |
6 | * The contents of this file constitute Original Code as defined in and |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 55e303ae | 11 | * |
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12 | * This Original Code and all software distributed under the License are |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
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14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
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16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
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19 | * |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | /* | |
| 23 | * Fundamental constants relating to FireWire network device. | |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef _NET_FIREWIRE_H_ | |
| 27 | #define _NET_FIREWIRE_H_ | |
| 28 | ||
| 29 | #include <sys/appleapiopts.h> | |
| 30 | ||
| 31 | /* | |
| 32 | * The number of bytes in a FireWire EUI-64. | |
| 33 | */ | |
| 34 | #define FIREWIRE_EUI64_LEN 8 | |
| 35 | ||
| 36 | /* | |
| 37 | * The number of bytes in the type field. | |
| 38 | */ | |
| 39 | #define FIREWIRE_TYPE_LEN 2 | |
| 40 | ||
| 41 | /* | |
| 42 | * The length of the header provided by the FireWire network device. | |
| 43 | */ | |
| 44 | #define FIREWIRE_HDR_LEN (FIREWIRE_EUI64_LEN*2+FIREWIRE_TYPE_LEN) | |
| 45 | ||
| 46 | /* | |
| 47 | * The minimum packet length. | |
| 48 | */ | |
| 49 | #define FIREWIRE_MIN_LEN 64 | |
| 50 | ||
| 51 | /* | |
| 52 | * The maximum packet length. | |
| 53 | */ | |
| 54 | #define FIREWIRE_MAX_LEN 4096 | |
| 55 | ||
| 56 | /* | |
| 57 | * A macro to validate a length with | |
| 58 | */ | |
| 59 | #define FIREWIRE_IS_VALID_LEN(foo) \ | |
| 60 | ((foo) >= FIREWIRE_MIN_LEN && (foo) <= FIREWIRE_MAX_LEN) | |
| 61 | ||
| 62 | /* | |
| 63 | * Structure of header provided by the FireWire network device. | |
| 64 | * | |
| 65 | * The device uses a simplified header with just the non-changing | |
| 66 | * EUI-64 addresses and ethernet type specified; | |
| 67 | */ | |
| 68 | struct firewire_header { | |
| 69 | u_char firewire_dhost[FIREWIRE_EUI64_LEN]; | |
| 70 | u_char firewire_shost[FIREWIRE_EUI64_LEN]; | |
| 71 | u_short firewire_type; /* ethertype */ | |
| 72 | }; | |
| 73 | ||
| 74 | /* | |
| 75 | * Format of FireWire EUI-64. | |
| 76 | */ | |
| 77 | struct firewire_eui64 { | |
| 78 | u_char octet[FIREWIRE_EUI64_LEN]; | |
| 79 | }; | |
| 80 | ||
| 81 | /* | |
| 82 | * Format of FireWire hardware address. | |
| 83 | */ | |
| 84 | struct firewire_address { | |
| 85 | u_char eui64[FIREWIRE_EUI64_LEN]; | |
| 86 | u_char maxRec; | |
| 87 | u_char spd; | |
| 88 | u_int16_t unicastFifoHi; | |
| 89 | u_int32_t unicastFifoLo; | |
| 90 | }; | |
| 91 | ||
| 92 | #define FIREWIRE_ADDR_LEN 16 /* sizeof(struct firewire_address) */ | |
| 93 | ||
| 94 | ||
| 95 | #define FIREWIRE_MTU (FIREWIRE_MAX_LEN - FIREWIRE_HDR_LEN) | |
| 96 | #define FIREWIRE_MIN (FIREWIRE_MIN_LEN - FIREWIRE_HDR_LEN) | |
| 97 | ||
| 98 | #endif /* !_NET_FIREWIRE_H_ */ |