xnu-517.tar.gz

[apple/xnu.git] / bsd / net / firewire.h

diff --git a/bsd/net/firewire.h b/bsd/net/firewire.h
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+/*
+ * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * Fundamental constants relating to FireWire network device.
+ */
+
+#ifndef _NET_FIREWIRE_H_
+#define _NET_FIREWIRE_H_
+
+#include <sys/appleapiopts.h>
+
+/*
+ * The number of bytes in a FireWire EUI-64.
+ */
+#define        FIREWIRE_EUI64_LEN              8
+
+/*
+ * The number of bytes in the type field.
+ */
+#define        FIREWIRE_TYPE_LEN               2
+
+/*
+ * The length of the header provided by the FireWire network device.
+ */
+#define        FIREWIRE_HDR_LEN                (FIREWIRE_EUI64_LEN*2+FIREWIRE_TYPE_LEN)
+
+/*
+ * The minimum packet length.
+ */
+#define        FIREWIRE_MIN_LEN                64
+
+/*
+ * The maximum packet length.
+ */
+#define        FIREWIRE_MAX_LEN                4096
+
+/*
+ * A macro to validate a length with
+ */
+#define        FIREWIRE_IS_VALID_LEN(foo)      \
+       ((foo) >= FIREWIRE_MIN_LEN && (foo) <= FIREWIRE_MAX_LEN)
+
+/*
+ * Structure of header provided by the FireWire network device.
+ *
+ * The device uses a simplified header with just the non-changing
+ * EUI-64 addresses and ethernet type specified;
+ */
+struct firewire_header {
+       u_char  firewire_dhost[FIREWIRE_EUI64_LEN];
+       u_char  firewire_shost[FIREWIRE_EUI64_LEN];
+       u_short firewire_type;          /* ethertype */
+};
+
+/*
+ * Format of FireWire EUI-64.
+ */
+struct firewire_eui64 {
+       u_char octet[FIREWIRE_EUI64_LEN];
+};
+
+/*
+ * Format of FireWire hardware address.
+ */
+struct firewire_address {
+    u_char     eui64[FIREWIRE_EUI64_LEN];
+    u_char     maxRec;
+    u_char     spd;
+    u_int16_t  unicastFifoHi;
+    u_int32_t  unicastFifoLo;
+};
+
+#define FIREWIRE_ADDR_LEN      16      /* sizeof(struct firewire_address) */
+
+
+#define FIREWIRE_MTU   (FIREWIRE_MAX_LEN - FIREWIRE_HDR_LEN)
+#define        FIREWIRE_MIN    (FIREWIRE_MIN_LEN - FIREWIRE_HDR_LEN)
+
+#endif /* !_NET_FIREWIRE_H_ */