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Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/net/ethernet.h')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/net/ethernet.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/net/ethernet.h b/REORG.TODO/sysdeps/unix/sysv/linux/net/ethernet.h new file mode 100644 index 0000000000..ef89c7b123 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/net/ethernet.h @@ -0,0 +1,84 @@ +/* Copyright (C) 1997-2017 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/types.h> +#include <stdint.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 +{ + uint8_t ether_addr_octet[ETH_ALEN]; +} __attribute__ ((__packed__)); + +/* 10Mb/s ethernet header */ +struct ether_header +{ + uint8_t ether_dhost[ETH_ALEN]; /* destination eth addr */ + uint8_t ether_shost[ETH_ALEN]; /* source ether addr */ + uint16_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 */ |