if_ether.h

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// Copyright (c) eBPF for Windows contributors
// SPDX-License-Identifier: MIT
#pragma once
 
typedef uint8_t mac_address_t[6];
 
#define ETHERNET_TYPE_IPV4 0x0800
#define ETHERNET_TYPE_IPV6 0x86dd
 
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4201) // nonstandard extension used : nameless struct/union
#endif
typedef struct _ETHERNET_HEADER
{
    uint8_t Destination[6];
    uint8_t Source[6];
    union
    {
        uint16_t Type;   // Ethernet
        uint16_t Length; // IEEE 802
    };
} ETHERNET_HEADER, *PETHERNET_HEADER;
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
 
// Linux mappings for cross-platform eBPF programs.
#define h_proto Type
#define ethhdr _ETHERNET_HEADER
#define ETH_P_IP ETHERNET_TYPE_IPV4