| /*- |
| * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer, |
| * without modification. |
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any |
| * redistribution must be conditioned upon including a substantially |
| * similar Disclaimer requirement for further binary redistribution. |
| * 3. Neither the names of the above-listed copyright holders nor the names |
| * of any contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * NO WARRANTY |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY |
| * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, |
| * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
| * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGES. |
| * |
| * $Id: if_ethersubr.h 2028 2007-01-30 03:51:52Z proski $ |
| */ |
| |
| #ifndef _NET_IF_ETHERSUBR_H_ |
| #define _NET_IF_ETHERSUBR_H_ |
| |
| #include <compat.h> |
| |
| #define ETHER_ADDR_LEN 6 /* length of an Ethernet address */ |
| #define ETHER_TYPE_LEN 2 /* length of the Ethernet type field */ |
| #define ETHER_CRC_LEN 4 /* length of the Ethernet CRC */ |
| #define ETHER_HDR_LEN (ETHER_ADDR_LEN * 2 + ETHER_TYPE_LEN) |
| #define ETHER_MAX_LEN 1518 |
| #define ETHER_MIN_LEN 64 |
| #define ETHER_JUMBO_MAX_LEN 4096 |
| |
| #define ETHERMTU (ETHER_MAX_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN) |
| |
| /* |
| * Structure of a 10Mb/s Ethernet header. |
| */ |
| struct ether_header { |
| u_char ether_dhost[ETHER_ADDR_LEN]; |
| u_char ether_shost[ETHER_ADDR_LEN]; |
| __be16 ether_type; |
| } __packed; |
| |
| #ifndef ETHERTYPE_80211MGT |
| #define ETHERTYPE_80211MGT 0x890D |
| #endif |
| |
| /* |
| * Structure of a 48-bit Ethernet address. |
| */ |
| struct ether_addr { |
| u_char octet[ETHER_ADDR_LEN]; |
| } __packed; |
| |
| #define ETHER_IS_MULTICAST(addr) (*(addr) & 0x01) /* is address mcast/bcast? */ |
| |
| #define VLAN_PRI_SHIFT 13 /* Shift to find VLAN user priority */ |
| #define VLAN_PRI_MASK 7 /* Mask for user priority bits in VLAN */ |
| |
| |
| #endif /* _NET_IF_ETHERSUBR_H_ */ |
