firewire.h

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    1 /*
    2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_LICENSE_HEADER_START@
    5  * 
    6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
    7  * 
    8  * This file contains Original Code and/or Modifications of Original Code
    9  * as defined in and that are subject to the Apple Public Source License
   10  * Version 2.0 (the 'License'). You may not use this file except in
   11  * compliance with the License. Please obtain a copy of the License at
   12  * http://www.opensource.apple.com/apsl/ and read it before using this
   13  * file.
   14  * 
   15  * The Original Code and all software distributed under the License are
   16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   20  * Please see the License for the specific language governing rights and
   21  * limitations under the License.
   22  * 
   23  * @APPLE_LICENSE_HEADER_END@
   24  */
   25 /*
   26  * Fundamental constants relating to FireWire network device.
   27  */
   28 
   29 #ifndef _NET_FIREWIRE_H_
   30 #define _NET_FIREWIRE_H_
   31 
   32 #include <sys/appleapiopts.h>
   33 
   34 /*
   35  * The number of bytes in a FireWire EUI-64.
   36  */
   37 #define FIREWIRE_EUI64_LEN              8
   38 
   39 /*
   40  * The number of bytes in the type field.
   41  */
   42 #define FIREWIRE_TYPE_LEN               2
   43 
   44 /*
   45  * The length of the header provided by the FireWire network device.
   46  */
   47 #define FIREWIRE_HDR_LEN                (FIREWIRE_EUI64_LEN*2+FIREWIRE_TYPE_LEN)
   48 
   49 /*
   50  * The minimum packet length.
   51  */
   52 #define FIREWIRE_MIN_LEN                64
   53 
   54 /*
   55  * The maximum packet length.
   56  */
   57 #define FIREWIRE_MAX_LEN                4096
   58 
   59 /*
   60  * A macro to validate a length with
   61  */
   62 #define FIREWIRE_IS_VALID_LEN(foo)      \
   63         ((foo) >= FIREWIRE_MIN_LEN && (foo) <= FIREWIRE_MAX_LEN)
   64 
   65 /*
   66  * Structure of header provided by the FireWire network device.
   67  *
   68  * The device uses a simplified header with just the non-changing
   69  * EUI-64 addresses and ethernet type specified;
   70  */
   71 struct  firewire_header {
   72         u_char  firewire_dhost[FIREWIRE_EUI64_LEN];
   73         u_char  firewire_shost[FIREWIRE_EUI64_LEN];
   74         u_short firewire_type;          /* ethertype */
   75 };
   76 
   77 /*
   78  * Format of FireWire EUI-64.
   79  */
   80 struct  firewire_eui64 {
   81         u_char octet[FIREWIRE_EUI64_LEN];
   82 };
   83 
   84 /*
   85  * Format of FireWire hardware address.
   86  */
   87 struct firewire_address {
   88     u_char      eui64[FIREWIRE_EUI64_LEN];
   89     u_char      maxRec;
   90     u_char      spd;
   91     u_int16_t   unicastFifoHi;
   92     u_int32_t   unicastFifoLo;
   93 };
   94 
   95 #define FIREWIRE_ADDR_LEN       16      /* sizeof(struct firewire_address) */
   96 
   97 
   98 #define FIREWIRE_MTU    (FIREWIRE_MAX_LEN - FIREWIRE_HDR_LEN)
   99 #define FIREWIRE_MIN    (FIREWIRE_MIN_LEN - FIREWIRE_HDR_LEN)
  100 
  101 #endif /* !_NET_FIREWIRE_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/bsd/net/firewire.h

FreeBSD/Linux Kernel Cross Reference
sys/bsd/net/firewire.h