1/*
2 * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * Fundamental constants relating to FireWire network device.
30 */
31
32#ifndef _NET_FIREWIRE_H_
33#define _NET_FIREWIRE_H_
34
35#include <sys/appleapiopts.h>
36
37/*
38 * The number of bytes in a FireWire EUI-64.
39 */
40#define FIREWIRE_EUI64_LEN 8
41
42/*
43 * The number of bytes in the type field.
44 */
45#define FIREWIRE_TYPE_LEN 2
46
47/*
48 * The length of the header provided by the FireWire network device.
49 */
50#define FIREWIRE_HDR_LEN (FIREWIRE_EUI64_LEN*2+FIREWIRE_TYPE_LEN)
51
52/*
53 * The minimum packet length.
54 */
55#define FIREWIRE_MIN_LEN 64
56
57/*
58 * The maximum packet length.
59 */
60#define FIREWIRE_MAX_LEN 4096
61
62/*
63 * A macro to validate a length with
64 */
65#define FIREWIRE_IS_VALID_LEN(foo) \
66 ((foo) >= FIREWIRE_MIN_LEN && (foo) <= FIREWIRE_MAX_LEN)
67
68/*
69 * Structure of header provided by the FireWire network device.
70 *
71 * The device uses a simplified header with just the non-changing
72 * EUI-64 addresses and ethernet type specified;
73 */
74struct firewire_header {
75 u_char firewire_dhost[FIREWIRE_EUI64_LEN];
76 u_char firewire_shost[FIREWIRE_EUI64_LEN];
77 u_short firewire_type; /* ethertype */
78};
79
80/*
81 * Format of FireWire EUI-64.
82 */
83struct firewire_eui64 {
84 u_char octet[FIREWIRE_EUI64_LEN];
85};
86
87/*
88 * Format of FireWire hardware address.
89 */
90struct firewire_address {
91 u_char eui64[FIREWIRE_EUI64_LEN];
92 u_char maxRec;
93 u_char spd;
94 u_int16_t unicastFifoHi;
95 u_int32_t unicastFifoLo;
96};
97
98#define FIREWIRE_ADDR_LEN 16 /* sizeof(struct firewire_address) */
99
100
101#define FIREWIRE_MTU (FIREWIRE_MAX_LEN - FIREWIRE_HDR_LEN)
102#define FIREWIRE_MIN (FIREWIRE_MIN_LEN - FIREWIRE_HDR_LEN)
103
104#endif /* !_NET_FIREWIRE_H_ */
105