mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-28 23:34:53 +03:00
84 lines
3.1 KiB
C
84 lines
3.1 KiB
C
/* Copyright (C) 1997-2014 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
/* Based on the FreeBSD version of this file. Curiously, that file
|
|
lacks a copyright in the header. */
|
|
|
|
#ifndef __NET_ETHERNET_H
|
|
#define __NET_ETHERNET_H 1
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/types.h>
|
|
#include <linux/if_ether.h> /* IEEE 802.3 Ethernet constants */
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/* This is a name for the 48 bit ethernet address available on many
|
|
systems. */
|
|
struct ether_addr
|
|
{
|
|
u_int8_t ether_addr_octet[ETH_ALEN];
|
|
} __attribute__ ((__packed__));
|
|
|
|
/* 10Mb/s ethernet header */
|
|
struct ether_header
|
|
{
|
|
u_int8_t ether_dhost[ETH_ALEN]; /* destination eth addr */
|
|
u_int8_t ether_shost[ETH_ALEN]; /* source ether addr */
|
|
u_int16_t ether_type; /* packet type ID field */
|
|
} __attribute__ ((__packed__));
|
|
|
|
/* Ethernet protocol ID's */
|
|
#define ETHERTYPE_PUP 0x0200 /* Xerox PUP */
|
|
#define ETHERTYPE_SPRITE 0x0500 /* Sprite */
|
|
#define ETHERTYPE_IP 0x0800 /* IP */
|
|
#define ETHERTYPE_ARP 0x0806 /* Address resolution */
|
|
#define ETHERTYPE_REVARP 0x8035 /* Reverse ARP */
|
|
#define ETHERTYPE_AT 0x809B /* AppleTalk protocol */
|
|
#define ETHERTYPE_AARP 0x80F3 /* AppleTalk ARP */
|
|
#define ETHERTYPE_VLAN 0x8100 /* IEEE 802.1Q VLAN tagging */
|
|
#define ETHERTYPE_IPX 0x8137 /* IPX */
|
|
#define ETHERTYPE_IPV6 0x86dd /* IP protocol version 6 */
|
|
#define ETHERTYPE_LOOPBACK 0x9000 /* used to test interfaces */
|
|
|
|
|
|
#define ETHER_ADDR_LEN ETH_ALEN /* size of ethernet addr */
|
|
#define ETHER_TYPE_LEN 2 /* bytes in type field */
|
|
#define ETHER_CRC_LEN 4 /* bytes in CRC field */
|
|
#define ETHER_HDR_LEN ETH_HLEN /* total octets in header */
|
|
#define ETHER_MIN_LEN (ETH_ZLEN + ETHER_CRC_LEN) /* min packet length */
|
|
#define ETHER_MAX_LEN (ETH_FRAME_LEN + ETHER_CRC_LEN) /* max packet length */
|
|
|
|
/* make sure ethenet length is valid */
|
|
#define ETHER_IS_VALID_LEN(foo) \
|
|
((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN)
|
|
|
|
/*
|
|
* The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have
|
|
* (type-ETHERTYPE_TRAIL)*512 bytes of data followed
|
|
* by an ETHER type (as given above) and then the (variable-length) header.
|
|
*/
|
|
#define ETHERTYPE_TRAIL 0x1000 /* Trailer packet */
|
|
#define ETHERTYPE_NTRAILER 16
|
|
|
|
#define ETHERMTU ETH_DATA_LEN
|
|
#define ETHERMIN (ETHER_MIN_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* net/ethernet.h */
|