2 * Copyright (c) 2002-2004 Sam Leffler, Errno Consulting
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14 * similar Disclaimer requirement for further binary redistribution.
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16 * of any contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
19 * Alternatively, this software may be distributed under the terms of the
20 * GNU General Public License ("GPL") version 2 as published by the Free
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36 * $Id: //depot/sw/branches/fusion_usb/target_firmware/wlan/target/madwifi/net80211/if_ethersubr.h#1 $
39 #ifndef _NET_IF_ETHERSUBR_H_
40 #define _NET_IF_ETHERSUBR_H_
42 #define ETHER_ADDR_LEN 6 /* length of an Ethernet address */
43 #define ETHER_TYPE_LEN 2 /* length of the Ethernet type field */
44 #define ETHER_CRC_LEN 4 /* length of the Ethernet CRC */
45 #define ETHER_HDR_LEN (ETHER_ADDR_LEN*2+ETHER_TYPE_LEN)
46 #define ETHER_MAX_LEN 1518
48 #define ETHERMTU (ETHER_MAX_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
51 * Structure of a 10Mb/s Ethernet header.
53 /* struct ether_header { */
54 /* u_char ether_dhost[ETHER_ADDR_LEN]; */
55 /* u_char ether_shost[ETHER_ADDR_LEN]; */
56 /* u_short ether_type; */
57 /* } adf_os_packed; */
60 #define ETHERTYPE_PAE 0x888e /* EAPOL PAE/802.1x */
63 #define ETHERTYPE_IP 0x0800 /* IP protocol */
67 * Structure of a 48-bit Ethernet address.
69 /* struct ether_addr { */
70 /* u_char octet[ETHER_ADDR_LEN]; */
71 /* } adf_os_packed; */
73 #define ETHER_IS_MULTICAST(addr) (*(addr) & 0x01) /* is address mcast/bcast? */
75 #define VLAN_PRI_SHIFT 13 /* Shift to find VLAN user priority */
76 #define VLAN_PRI_MASK 7 /* Mask for user priority bits in VLAN */
79 #endif /* _NET_IF_ETHERSUBR_H_ */