ieee_oui.h revision 258141 
1/*
2 * Copyright (c) 2013 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above
11 *    copyright notice, this list of conditions and the following
12 *    disclaimer in the documentation and/or other materials provided
13 *    with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
18 * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/net/ieee_oui.h 258141 2013-11-14 19:53:35Z gnn $
29 *
30 * Author: George V. Neville-Neil
31 *
32 */
33
34/* Organizationally Unique Identifier assigned by IEEE 14 Nov 2013 */
35#define OUI_FREEBSD 0x589cfc
36
37/*
38 * OUIs are most often used to uniquely identify network interfaces
39 * and occupy the first 3 bytes of both destination and source MAC
40 * addresses.  The following allocations exist so that various
41 * software systems associated with FreeBSD can have unique IDs in the
42 * absence of hardware.  The use of OUIs for this purpose is not fully
43 * fleshed out but is now in common use in virtualization technology.
44 *
45 * Allocations from this range are expected to be made using COMMON
46 * SENSE by developers.  Do NOT take a large range just because
47 * they're currently wide open.  Take the smallest useful range for
48 * your system.  We have (2^24 - 2) available addresses (see Reserved
49 * Values below) but that is far from infinite.
50 *
51 * In the event of a conflict arbitration of allocation in this file
52 * is subject to core@ approval
53 *
54 * Applications are differentiated based on the high order bit(s) of
55 * the remaining three bytes.  Our first allocation has all 0s, the
56 * next allocation has the highest bit set.  Allocating in this way
57 * gives us 254 allocations of 64K addresses.  Address blocks can be
58 * concatenated if necessary.
59 *
60 * Reserved Values: 0x000000 and 0xffffff are reserved and MUST NOT BE
61 * allocated for any reason.
62 */
63
64/* Allocate 64K to bhyve */
65#define OUI_FREEBSD_BHYVE_LOW	OUI_FREEBSD + 0x000001
66#define OUI_FREEBSD_BHYVE_HIGH	OUI_FREEBSD + 0x00ffff
67