/usr/include/bitstream/ieee/ethernet.h is in libbitstream-dev 1.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* ethernet.h: Ethernet frames
*****************************************************************************
* Copyright (C) 2015 VideoLAN
*
* Authors: Benjamin Cohen <bencoh@notk.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject
* to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*****************************************************************************/
/*
* Normative references:
* - IEEE Std 802.3-2012 (December 2012)
* - IETF RFC 7042 IANA Considerations and IETF Protocol
* and Documentation Usage for IEEE 802 Parameters (October 2013)
*/
#ifndef __BITSTREAM_IEEE_ETHERNET_H__
#define __BITSTREAM_IEEE_ETHERNET_H__
#include <stdint.h>
#include <string.h> /* memcpy */
#ifdef __cplusplus
extern "C"
{
#endif
#define ETHERNET_ADDR_LEN 6
#define ETHERNET_HEADER_LEN (2*ETHERNET_ADDR_LEN + 2)
#define ETHERNET_TYPE_IP 0x0800
#define ETHERNET_TYPE_ARP 0x0806
#define ETHERNET_TYPE_RARP 0x8035
#define ETHERNET_TYPE_VLAN 0x8100
#define ETHERNET_TYPE_IPV6 0x86DD
#define ETHERNET_TYPE_PPP 0x880B
#define ETHERNET_TYPE_MPLS 0x8847
#define ETHERNET_TYPE_PPPOE_DISC 0x8863
#define ETHERNET_TYPE_PPPOE_SESSION 0x8864
#define ETHERNET_TYPE_LLDP 0x88CC
static inline uint8_t *ethernet_dstaddr(uint8_t *p_ethernet)
{
return p_ethernet;
}
static inline void ethernet_get_dstaddr(const uint8_t *p_ethernet, uint8_t *p_addr)
{
memcpy(p_addr, p_ethernet, ETHERNET_ADDR_LEN);
}
static inline void ethernet_set_dstaddr(uint8_t *p_ethernet, const uint8_t *p_addr)
{
memcpy(ethernet_dstaddr(p_ethernet), p_addr, ETHERNET_ADDR_LEN);
}
static inline uint8_t *ethernet_srcaddr(uint8_t *p_ethernet)
{
return p_ethernet + ETHERNET_ADDR_LEN;
}
static inline void ethernet_get_srcaddr(const uint8_t *p_ethernet, uint8_t *p_addr)
{
memcpy(p_addr, p_ethernet + ETHERNET_ADDR_LEN, ETHERNET_ADDR_LEN);
}
static inline void ethernet_set_srcaddr(uint8_t *p_ethernet, const uint8_t *p_addr)
{
memcpy(ethernet_srcaddr(p_ethernet), p_addr, ETHERNET_ADDR_LEN);
}
static inline uint16_t ethernet_get_lentype(const uint8_t *p_ethernet)
{
return (p_ethernet[12] << 8) | p_ethernet[13];
}
static inline void ethernet_set_lentype(uint8_t *p_ethernet, uint16_t lentype)
{
p_ethernet[12] = (lentype & 0xff00) >> 8;
p_ethernet[13] = (lentype & 0xff);
}
static inline uint8_t *ethernet_payload(uint8_t *p_ethernet)
{
return p_ethernet + ETHERNET_HEADER_LEN;
}
#ifdef __cplusplus
}
#endif
#endif
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