#include "../std_include.hpp"
#include "security_support_provider.hpp"

#include "../windows_emulator.hpp"

namespace
{
    struct security_support_provider : stateless_device
    {
        // RNG Microsoft Primitive Provider
        // NOLINTNEXTLINE(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
        std::uint8_t rng_output_data[216] = //
            {0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF,
             0xFF, 0xFF, 0xFF, 0xFF, 0x98, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
             0x52, 0x00, 0x4E, 0x00, 0x47, 0x00, 0x00, 0x00, 0x4D, 0x00, 0x69, 0x00, 0x63, 0x00, 0x72, 0x00, 0x6F, 0x00, 0x73, 0x00,
             0x6F, 0x00, 0x66, 0x00, 0x74, 0x00, 0x20, 0x00, 0x50, 0x00, 0x72, 0x00, 0x69, 0x00, 0x6D, 0x00, 0x69, 0x00, 0x74, 0x00,
             0x69, 0x00, 0x76, 0x00, 0x65, 0x00, 0x20, 0x00, 0x50, 0x00, 0x72, 0x00, 0x6F, 0x00, 0x76, 0x00, 0x69, 0x00, 0x64, 0x00,
             0x65, 0x00, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x62, 0x00, 0x63, 0x00, 0x72, 0x00, 0x79, 0x00, 0x70, 0x00, 0x74, 0x00,
             0x70, 0x00, 0x72, 0x00, 0x69, 0x00, 0x6D, 0x00, 0x69, 0x00, 0x74, 0x00, 0x69, 0x00, 0x76, 0x00, 0x65, 0x00, 0x73, 0x00,
             0x2E, 0x00, 0x64, 0x00, 0x6C, 0x00, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

        // SHA256 Microsoft Primitive Provider
        // NOLINTNEXTLINE(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
        std::uint8_t sha256_output_data[224] = //
            {0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x41, 0x00, 0x32, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
             0xFF, 0xA0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x53, 0x00, 0x48, 0x00,
             0x41, 0x00, 0x32, 0x00, 0x35, 0x00, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4D, 0x00, 0x69, 0x00, 0x63, 0x00, 0x72, 0x00, 0x6F,
             0x00, 0x73, 0x00, 0x6F, 0x00, 0x66, 0x00, 0x74, 0x00, 0x20, 0x00, 0x50, 0x00, 0x72, 0x00, 0x69, 0x00, 0x6D, 0x00, 0x69, 0x00,
             0x74, 0x00, 0x69, 0x00, 0x76, 0x00, 0x65, 0x00, 0x20, 0x00, 0x50, 0x00, 0x72, 0x00, 0x6F, 0x00, 0x76, 0x00, 0x69, 0x00, 0x64,
             0x00, 0x65, 0x00, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x62, 0x00, 0x63, 0x00, 0x72, 0x00, 0x79, 0x00, 0x70, 0x00, 0x74, 0x00, 0x70,
             0x00, 0x72, 0x00, 0x69, 0x00, 0x6D, 0x00, 0x69, 0x00, 0x74, 0x00, 0x69, 0x00, 0x76, 0x00, 0x65, 0x00, 0x73, 0x00, 0x2E, 0x00,
             0x64, 0x00, 0x6C, 0x00, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

        NTSTATUS io_control(windows_emulator& win_emu, const io_device_context& c) override
        {
            if (c.io_control_code != 0x390400)
            {
                return STATUS_NOT_SUPPORTED;
            }

            const auto operation = win_emu.emu().read_memory<USHORT>(c.input_buffer + 6);

            if (operation == 2)
            {
                std::array<char16_t, 8> alg_name_buffer{};
                win_emu.emu().read_memory(c.input_buffer + 0x30, alg_name_buffer.data(), sizeof(alg_name_buffer));

                const std::u16string algorithm_name(alg_name_buffer.data());

                if (algorithm_name == u"SHA256")
                {
                    win_emu.emu().write_memory(c.output_buffer, sha256_output_data);

                    if (c.io_status_block)
                    {
                        IO_STATUS_BLOCK<EmulatorTraits<Emu64>> block{};
                        block.Information = sizeof(sha256_output_data);
                        c.io_status_block.write(block);
                    }
                }
                else
                {
                    win_emu.emu().write_memory(c.output_buffer, rng_output_data);

                    if (c.io_status_block)
                    {
                        IO_STATUS_BLOCK<EmulatorTraits<Emu64>> block{};
                        block.Information = sizeof(rng_output_data);
                        c.io_status_block.write(block);
                    }
                }
            }

            return STATUS_SUCCESS;
        }
    };
}

std::unique_ptr<io_device> create_security_support_provider()
{
    return std::make_unique<security_support_provider>();
}