#include "BIOSReader.h"
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#include <cstdint>
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#include "Native.h"
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struct smbios_structure_header {
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uint8_t type;
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uint8_t length;
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uint16_t handle;
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};
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//
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// System information
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//
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struct smbios_type_1 {
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struct smbios_structure_header header;
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uint8_t manufacturer_str;
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uint8_t product_name_str;
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uint8_t version_str;
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uint8_t serial_number_str;
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uint8_t uuid[16];
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uint8_t wake_up_type;
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uint8_t sku_number_str;
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uint8_t family_str;
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};
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#define _TYPE_COUNT1 6
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#define _CONCATE(x, y) x##y
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#define CONCATE(x, y) _CONCATE(x, y)
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#define TYPE_COUNT(t) CONCATE(_TYPE_COUNT, t)
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//
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// Windows
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//
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#include <Windows.h>
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#include <tchar.h>
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int8_t *parse_smbiod_content(int8_t *addr, int8_t **indexes, int32_t *count) {
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//! ignore 0
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int8_t parsed_count = 0;
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int8_t *raw_addr = addr;
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//! first one
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if (indexes) *indexes = raw_addr;
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bool reach_terminal = false;
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while (true) {
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if (0 == *raw_addr++) {
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if (reach_terminal)
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break;
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else {
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++parsed_count;
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if (count && parsed_count < *count) {
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if (indexes) *(indexes + parsed_count) = raw_addr;
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}
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reach_terminal = true;
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}
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} else {
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reach_terminal = false;
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continue;
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}
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}
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if (count) *count = parsed_count;
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return raw_addr;
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}
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void read_smbios_type_1(int8_t *addr, SystemInformation *info) {
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smbios_type_1 *t1 = (smbios_type_1 *)addr;
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int32_t offset = ((0x0F) & (t1->header.length >> 4)) * 16 + (t1->header.length & 0x0F);
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int8_t *string_addr[TYPE_COUNT(1)] = {0};
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int32_t count = TYPE_COUNT(1);
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parse_smbiod_content((int8_t *)t1 + offset, string_addr, &count);
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if (0 != t1->manufacturer_str)
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info->Manufacturer = (std::string::traits_type::char_type *)string_addr[t1->manufacturer_str - 1];
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if (0 != t1->product_name_str)
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info->ProductName = (std::string::traits_type::char_type *)string_addr[t1->product_name_str - 1];
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if (0 != t1->serial_number_str)
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info->SerialNum = (std::string::traits_type::char_type *)string_addr[t1->serial_number_str - 1];
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if (0 != t1->version_str)
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info->SysVersion = (std::string::traits_type::char_type *)string_addr[t1->version_str - 1];
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if (0 != t1->family_str) info->family = (std::string::traits_type::char_type *)string_addr[t1->family_str - 1];
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}
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SystemInformation BIOSReader::readSystemInfo() {
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SystemInformation info;
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uint32_t size = 0;
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RawSMBIOSData *data = (RawSMBIOSData *)(LocateSMBIOS(&size));
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if (NULL == data || 0 == size) return info;
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smbios_structure_header *header = (smbios_structure_header *)(data->SMBIOSTableData);
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while (NULL != header) {
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if (1 == header->type) {
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read_smbios_type_1((int8_t *)header, &info);
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header = NULL; //! stop
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} else {
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int32_t offset = ((0x0F) & (header->length >> 4)) * 16 + (header->length & 0x0F);
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header = (smbios_structure_header *)parse_smbiod_content((int8_t *)header + offset, NULL, NULL);
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}
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}
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free(data);
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return info;
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}
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