linuxptp/ether.h

/**
 * @file ether.h
 * @brief Provides definitions useful when working with Ethernet packets.
 * @note Copyright (C) 2012 Richard Cochran <richardcochran@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
#ifndef HAVE_ETHER_H
#define HAVE_ETHER_H

#include <stdint.h>

#define MAC_LEN 6
#define PTP_DST_MAC 0x01, 0x1B, 0x19, 0x00, 0x00, 0x00
#define P2P_DST_MAC 0x01, 0x80, 0xC2, 0x00, 0x00, 0x0E

struct eth_addr {
	uint8_t dst[MAC_LEN];
	uint8_t src[MAC_LEN];
} __attribute__((packed));

struct eth_hdr {
	struct eth_addr mac;
	uint16_t type;
} __attribute__((packed));

#define VLAN_HLEN 4

struct vlan_hdr {
	struct eth_addr mac;
	uint16_t tpid;
	uint16_t tci;
	uint16_t type;
} __attribute__((packed));

#define OFF_ETYPE sizeof(struct eth_addr)

#endif