/*
* Copyright ( C ) 2011 The Android Open Source Project
* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* * Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
* * Redistributions in binary form must reproduce the above copyright
* notice , this list of conditions and the following disclaimer in
* the documentation and / or other materials provided with the
* distribution .
*
* 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 MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED . IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT , INDIRECT ,
* INCIDENTAL , 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 DAMAGE .
*/
#ifndef _NET_ETHERNET_H_
#define _NET_ETHERNET_H_
#include <sys/cdefs.h>
#include <sys/types.h>
#include <linux/if_ether.h>
__BEGIN_DECLS
#define ETHERTYPE_IP 0 x0800
#define ETHERTYPE_ARP 0 x0806
#define ETHERTYPE_REVARP 0 x8035
#define ETHERTYPE_VLAN 0 x8100
#define ETHERTYPE_IPX 0 x8137
#define ETHERTYPE_IPV6 0 x86dd
#define ETHERTYPE_LOOPBACK 0 x9000
#define ETHERTYPE_TRAIL 0 x1000
#define ETHERTYPE_NTRAILER 16
/*
* Some basic Ethernet constants .
*/
#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_MIN_LEN 64 /* minimum frame length, including CRC */
#define ETHER_MAX_LEN 1518 /* maximum frame length, including CRC */
#define ETHER_MAX_LEN_JUMBO 9018 /* maximum jumbo frame len, including CRC */
/*
* Ethernet address - 6 octets
* this is only used by the ethers ( 3 ) functions .
*/
struct ether_addr {
u_int8_t ether_addr_octet[ETHER_ADDR_LEN];
} __attribute__((__packed__));
/*
* Structure of a 10 Mb / s Ethernet header .
*/
struct ether_header {
u_int8_t ether_dhost[ETHER_ADDR_LEN];
u_int8_t ether_shost[ETHER_ADDR_LEN];
u_int16_t ether_type;
} __attribute__((__packed__));
#define ETHERMTU_JUMBO (ETHER_MAX_LEN_JUMBO - ETHER_HDR_LEN - ETHER_CRC_LEN)
#define ETHERMTU (ETHER_MAX_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
#define ETHERMIN (ETHER_MIN_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
__END_DECLS
#endif
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