72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/*
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* Copyright (c) 2016, 2017 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* netinet/if_ether.h
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* Ethernet interfaces.
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*/
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#ifndef _INCLUDE_NETINET_IF_ETHER_H
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#define _INCLUDE_NETINET_IF_ETHER_H
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#include <sys/cdefs.h>
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#include <stdint.h>
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#define ETHER_ADDR_LEN 6
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#define ETHER_TYPE_LEN 2
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#define ETHER_HDR_LEN (ETHER_ADDR_LEN + ETHER_ADDR_LEN + ETHER_TYPE_LEN) /* 14 */
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#define ETHER_CRC_LEN 4
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#define ETHER_LEN (ETHER_HDR_LEN + ETHER_CRC_LEN) /* 18 */
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#define ETHER_MIN_LEN 64
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#define ETHER_MAX_LEN 1518
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#define ETHERMTU (ETHER_MAX_LEN - ETHER_LEN) /* 1500 */
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#define ETHERMIN (ETHER_MIN_LEN - ETHER_LEN) /* 46 */
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#define ETHERADDR_BROADCAST_INIT { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } }
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#define ETHERTYPE_IP 0x0800
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#define ETHERTYPE_ARP 0x0806
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#define ETHERTYPE_IPV6 0x86dd
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struct ether_addr
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{
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uint8_t ether_addr_octet[ETHER_ADDR_LEN];
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};
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struct ether_header
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{
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uint8_t ether_dhost[ETHER_ADDR_LEN];
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uint8_t ether_shost[ETHER_ADDR_LEN];
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uint16_t ether_type;
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};
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struct ether_footer
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{
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uint32_t ether_crc;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern const struct ether_addr etheraddr_broadcast; /* ff:ff:ff:ff:ff:ff */
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif
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