    const std = @import("std");
    const uefi = std.os.uefi;
    const Event = uefi.Event;
    const Guid = uefi.Guid;
    const Status = uefi.Status;
    const cc = uefi.cc;

    pub const SimpleNetworkProtocol = extern struct {
        revision: u64,
        _start: *const fn (*const SimpleNetworkProtocol) callconv(cc) Status,
        _stop: *const fn (*const SimpleNetworkProtocol) callconv(cc) Status,
        _initialize: *const fn (*const SimpleNetworkProtocol, usize, usize) callconv(cc) Status,
        _reset: *const fn (*const SimpleNetworkProtocol, bool) callconv(cc) Status,
        _shutdown: *const fn (*const SimpleNetworkProtocol) callconv(cc) Status,
        _receive_filters: *const fn (*const SimpleNetworkProtocol, SimpleNetworkReceiveFilter, SimpleNetworkReceiveFilter, bool, usize, ?[*]const MacAddress) callconv(cc) Status,
        _station_address: *const fn (*const SimpleNetworkProtocol, bool, ?*const MacAddress) callconv(cc) Status,
        _statistics: *const fn (*const SimpleNetworkProtocol, bool, ?*usize, ?*NetworkStatistics) callconv(cc) Status,
        _mcast_ip_to_mac: *const fn (*const SimpleNetworkProtocol, bool, *const anyopaque, *MacAddress) callconv(cc) Status,
        _nvdata: *const fn (*const SimpleNetworkProtocol, bool, usize, usize, [*]u8) callconv(cc) Status,
        _get_status: *const fn (*const SimpleNetworkProtocol, *SimpleNetworkInterruptStatus, ?*?[*]u8) callconv(cc) Status,
        _transmit: *const fn (*const SimpleNetworkProtocol, usize, usize, [*]const u8, ?*const MacAddress, ?*const MacAddress, ?*const u16) callconv(cc) Status,
        _receive: *const fn (*const SimpleNetworkProtocol, ?*usize, *usize, [*]u8, ?*MacAddress, ?*MacAddress, ?*u16) callconv(cc) Status,
        wait_for_packet: Event,
        mode: *SimpleNetworkMode,

        /// Changes the state of a network interface from "stopped" to "started".
        pub fn start(self: *const SimpleNetworkProtocol) Status {
            return self._start(self);
        }

        /// Changes the state of a network interface from "started" to "stopped".
        pub fn stop(self: *const SimpleNetworkProtocol) Status {
            return self._stop(self);
        }

        /// Resets a network adapter and allocates the transmit and receive buffers required by the network interface.
        pub fn initialize(self: *const SimpleNetworkProtocol, extra_rx_buffer_size: usize, extra_tx_buffer_size: usize) Status {
            return self._initialize(self, extra_rx_buffer_size, extra_tx_buffer_size);
        }

        /// Resets a network adapter and reinitializes it with the parameters that were provided in the previous call to initialize().
        pub fn reset(self: *const SimpleNetworkProtocol, extended_verification: bool) Status {
            return self._reset(self, extended_verification);
        }

        /// Resets a network adapter and leaves it in a state that is safe for another driver to initialize.
        pub fn shutdown(self: *const SimpleNetworkProtocol) Status {
            return self._shutdown(self);
        }

        /// Manages the multicast receive filters of a network interface.
        pub fn receiveFilters(self: *const SimpleNetworkProtocol, enable: SimpleNetworkReceiveFilter, disable: SimpleNetworkReceiveFilter, reset_mcast_filter: bool, mcast_filter_cnt: usize, mcast_filter: ?[*]const MacAddress) Status {
            return self._receive_filters(self, enable, disable, reset_mcast_filter, mcast_filter_cnt, mcast_filter);
        }

        /// Modifies or resets the current station address, if supported.
        pub fn stationAddress(self: *const SimpleNetworkProtocol, reset_flag: bool, new: ?*const MacAddress) Status {
            return self._station_address(self, reset_flag, new);
        }

        /// Resets or collects the statistics on a network interface.
        pub fn statistics(self: *const SimpleNetworkProtocol, reset_flag: bool, statistics_size: ?*usize, statistics_table: ?*NetworkStatistics) Status {
            return self._statistics(self, reset_flag, statistics_size, statistics_table);
        }

        /// Converts a multicast IP address to a multicast HW MAC address.
        pub fn mcastIpToMac(self: *const SimpleNetworkProtocol, ipv6: bool, ip: *const anyopaque, mac: *MacAddress) Status {
            return self._mcast_ip_to_mac(self, ipv6, ip, mac);
        }

        /// Performs read and write operations on the NVRAM device attached to a network interface.
        pub fn nvdata(self: *const SimpleNetworkProtocol, read_write: bool, offset: usize, buffer_size: usize, buffer: [*]u8) Status {
            return self._nvdata(self, read_write, offset, buffer_size, buffer);
        }

        /// Reads the current interrupt status and recycled transmit buffer status from a network interface.
        pub fn getStatus(self: *const SimpleNetworkProtocol, interrupt_status: *SimpleNetworkInterruptStatus, tx_buf: ?*?[*]u8) Status {
            return self._get_status(self, interrupt_status, tx_buf);
        }

        /// Places a packet in the transmit queue of a network interface.
        pub fn transmit(self: *const SimpleNetworkProtocol, header_size: usize, buffer_size: usize, buffer: [*]const u8, src_addr: ?*const MacAddress, dest_addr: ?*const MacAddress, protocol: ?*const u16) Status {
            return self._transmit(self, header_size, buffer_size, buffer, src_addr, dest_addr, protocol);
        }

        /// Receives a packet from a network interface.
        pub fn receive(self: *const SimpleNetworkProtocol, header_size: ?*usize, buffer_size: *usize, buffer: [*]u8, src_addr: ?*MacAddress, dest_addr: ?*MacAddress, protocol: ?*u16) Status {
            return self._receive(self, header_size, buffer_size, buffer, src_addr, dest_addr, protocol);
        }

        pub const guid align(8) = Guid{
            .time_low = 0xa19832b9,
            .time_mid = 0xac25,
            .time_high_and_version = 0x11d3,
            .clock_seq_high_and_reserved = 0x9a,
            .clock_seq_low = 0x2d,
            .node = [_]u8{ 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d },
        };
    };

    pub const MacAddress = [32]u8;

    pub const SimpleNetworkMode = extern struct {
        state: SimpleNetworkState,
        hw_address_size: u32,
        media_header_size: u32,
        max_packet_size: u32,
        nvram_size: u32,
        nvram_access_size: u32,
        receive_filter_mask: SimpleNetworkReceiveFilter,
        receive_filter_setting: SimpleNetworkReceiveFilter,
        max_mcast_filter_count: u32,
        mcast_filter_count: u32,
        mcast_filter: [16]MacAddress,
        current_address: MacAddress,
        broadcast_address: MacAddress,
        permanent_address: MacAddress,
        if_type: u8,
        mac_address_changeable: bool,
        multiple_tx_supported: bool,
        media_present_supported: bool,
        media_present: bool,
    };

    pub const SimpleNetworkReceiveFilter = packed struct(u32) {
        receive_unicast: bool,
        receive_multicast: bool,
        receive_broadcast: bool,
        receive_promiscuous: bool,
        receive_promiscuous_multicast: bool,
        _pad: u27 = 0,
    };

    pub const SimpleNetworkState = enum(u32) {
        Stopped,
        Started,
        Initialized,
    };

    pub const NetworkStatistics = extern struct {
        rx_total_frames: u64,
        rx_good_frames: u64,
        rx_undersize_frames: u64,
        rx_oversize_frames: u64,
        rx_dropped_frames: u64,
        rx_unicast_frames: u64,
        rx_broadcast_frames: u64,
        rx_multicast_frames: u64,
        rx_crc_error_frames: u64,
        rx_total_bytes: u64,
        tx_total_frames: u64,
        tx_good_frames: u64,
        tx_undersize_frames: u64,
        tx_oversize_frames: u64,
        tx_dropped_frames: u64,
        tx_unicast_frames: u64,
        tx_broadcast_frames: u64,
        tx_multicast_frames: u64,
        tx_crc_error_frames: u64,
        tx_total_bytes: u64,
        collisions: u64,
        unsupported_protocol: u64,
        rx_duplicated_frames: u64,
        rx_decryptError_frames: u64,
        tx_error_frames: u64,
        tx_retry_frames: u64,
    };

    pub const SimpleNetworkInterruptStatus = packed struct(u32) {
        receive_interrupt: bool,
        transmit_interrupt: bool,
        command_interrupt: bool,
        software_interrupt: bool,
        _pad: u28 = 0,
    };