104 lines
3 KiB
C
104 lines
3 KiB
C
/*
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* Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* Fundamental constants relating to FireWire network device.
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*/
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#ifndef _NET_FIREWIRE_H_
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#define _NET_FIREWIRE_H_
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#include <sys/appleapiopts.h>
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/*
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* The number of bytes in a FireWire EUI-64.
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*/
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#define FIREWIRE_EUI64_LEN 8
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/*
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* The number of bytes in the type field.
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*/
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#define FIREWIRE_TYPE_LEN 2
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/*
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* The length of the header provided by the FireWire network device.
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*/
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#define FIREWIRE_HDR_LEN (FIREWIRE_EUI64_LEN*2+FIREWIRE_TYPE_LEN)
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/*
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* The minimum packet length.
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*/
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#define FIREWIRE_MIN_LEN 64
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/*
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* The maximum packet length.
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*/
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#define FIREWIRE_MAX_LEN 4096
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/*
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* A macro to validate a length with
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*/
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#define FIREWIRE_IS_VALID_LEN(foo) \
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((foo) >= FIREWIRE_MIN_LEN && (foo) <= FIREWIRE_MAX_LEN)
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/*
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* Structure of header provided by the FireWire network device.
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*
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* The device uses a simplified header with just the non-changing
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* EUI-64 addresses and ethernet type specified;
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*/
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struct firewire_header {
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u_char firewire_dhost[FIREWIRE_EUI64_LEN];
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u_char firewire_shost[FIREWIRE_EUI64_LEN];
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u_short firewire_type; /* ethertype */
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};
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/*
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* Format of FireWire EUI-64.
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*/
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struct firewire_eui64 {
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u_char octet[FIREWIRE_EUI64_LEN];
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};
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/*
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* Format of FireWire hardware address.
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*/
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struct firewire_address {
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u_char eui64[FIREWIRE_EUI64_LEN];
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u_char maxRec;
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u_char spd;
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u_int16_t unicastFifoHi;
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u_int32_t unicastFifoLo;
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};
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#define FIREWIRE_ADDR_LEN 16 /* sizeof(struct firewire_address) */
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#define FIREWIRE_MTU (FIREWIRE_MAX_LEN - FIREWIRE_HDR_LEN)
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#define FIREWIRE_MIN (FIREWIRE_MIN_LEN - FIREWIRE_HDR_LEN)
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#endif /* !_NET_FIREWIRE_H_ */
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