/*
* Copyright (c) 2021 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup ethip
* @{
*/
/**
* @file Ethernet, IP/Ethernet standard definitions
*
*/
#ifndef ETHIP_STD_H_
#define ETHIP_STD_H_
#include <stdint.h>
#define ETH_ADDR_SIZE 6
#define IPV4_ADDR_SIZE 4
#define ETH_FRAME_MIN_SIZE 60
/** Ethernet frame header */
typedef struct {
/** Destination Address */
uint8_t dest[ETH_ADDR_SIZE];
/** Source Address */
uint8_t src[ETH_ADDR_SIZE];
/** Ethertype or Length */
uint16_t etype_len;
} eth_header_t;
/** ARP packet format (for 48-bit MAC addresses and IPv4) */
typedef struct {
/** Hardware address space */
uint16_t hw_addr_space;
/** Protocol address space */
uint16_t proto_addr_space;
/** Hardware address size */
uint8_t hw_addr_size;
/** Protocol address size */
uint8_t proto_addr_size;
/** Opcode */
uint16_t opcode;
/** Sender hardware address */
uint8_t sender_hw_addr[ETH_ADDR_SIZE];
/** Sender protocol address */
uint32_t sender_proto_addr;
/** Target hardware address */
uint8_t target_hw_addr[ETH_ADDR_SIZE];
/** Target protocol address */
uint32_t target_proto_addr;
} __attribute__((packed)) arp_eth_packet_fmt_t;
enum arp_opcode_fmt {
AOP_REQUEST = 1,
AOP_REPLY = 2
};
enum arp_hw_addr_space {
AHRD_ETHERNET = 1
};
/** IP Ethertype */
enum ether_type {
ETYPE_ARP = 0x0806,
ETYPE_IP = 0x0800,
ETYPE_IPV6 = 0x86DD
};
#endif
/** @}
*/