Function loadConfigInner

src/config_utils.cpp:1793–1823

#endif

static bool loadConfigInner(Config& config)
{
    config = Config Config_init_zero;

    const uint8_t* flashEnd = reinterpret_cast<const uint8_t*>(EEPROM_ADDRESS_START) + EEPROM_SIZE_BYTES;
    const ConfigFooter& footer = *reinterpret_cast<const ConfigFooter*>(flashEnd - sizeof(ConfigFooter));

    // Check for presence of magic value
    if (footer.magic != FOOTER_MAGIC)
    {
        return false;
    }

        // Check if dataSize exceeds the reserved space
    if (footer.dataSize + sizeof(ConfigFooter) > EEPROM_SIZE_BYTES)
    {
        return false;
    }

    const uint8_t* dataPtr = flashEnd - sizeof(ConfigFooter) - footer.dataSize;

    // Verify CRC32 hash
    if (CRC32::calculate(dataPtr, footer.dataSize) != footer.dataCrc)
    {
        return false;
    }

    // We are now sufficiently confident that the data is valid so we run the deserialization
    pb_istream_t inputStream = pb_istream_from_buffer(dataPtr, footer.dataSize);
    return pb_decode(&inputStream, Config_fields, &config);
}

void ConfigUtils::load(Config& config)
{