获取机器UUID
QString GrantedManager::getMachineUUID()
{
QString uuid = "";
HRESULT hres = CoInitializeEx(0, COINIT_APARTMENTTHREADED);
if ((hres != RPC_E_TOO_LATE) && (hres != RPC_E_NO_GOOD_SECURITY_PACKAGES)&& FAILED(hres))
{
qDebug() << "Failed to initialize security. "
<< "Error code = 0x"
<< hex << hres << endl;
CoUninitialize();
return uuid;
}
hres = CoInitializeSecurity(
NULL,
-1, // COM authentication
NULL, // Authentication services
NULL, // Reserved
RPC_C_AUTHN_LEVEL_DEFAULT, // Default authentication
RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation
NULL, // Authentication info
EOAC_NONE, // Additional capabilities
NULL // Reserved
);
if ((hres != RPC_E_TOO_LATE) && FAILED(hres))
{
qDebug() << "Failed to initialize security. Error code = 0x"
<< hex << hres << endl;
CoUninitialize();
return uuid; // Program has failed.
}
// Step 3: ---------------------------------------------------
// Obtain the initial locator to WMI -------------------------
IWbemLocator *pLoc = NULL;
hres = CoCreateInstance(
CLSID_WbemLocator,
0,
CLSCTX_INPROC_SERVER,
IID_IWbemLocator, (LPVOID *)&pLoc);
if (FAILED(hres))
{
qDebug() << "Failed to create IWbemLocator object."
<< " Err code = 0x"
<< hex << hres << endl;
CoUninitialize();
return uuid; // Program has failed.
}
// Step 4: -----------------------------------------------------
// Connect to WMI through the IWbemLocator::ConnectServer method
IWbemServices *pSvc = NULL;
// Connect to the root\cimv2 namespace with
// the current user and obtain pointer pSvc
// to make IWbemServices calls.
hres = pLoc->ConnectServer(
_bstr_t(L"ROOT\\CIMV2"), // Object path of WMI namespace
NULL, // User name. NULL = current user
NULL, // User password. NULL = current
0, // Locale. NULL indicates current
NULL, // Security flags.
0, // Authority (. Kerberos)
0, // Context object
&pSvc // pointer to IWbemServices proxy
);
if (FAILED(hres))
{
qDebug() << "Could not connect. Error code = 0x"
<< hex << hres << endl;
pLoc->Release();
CoUninitialize();
return uuid; // Program has failed.
}
//cout << "Connected to ROOT\\CIMV2 WMI namespace" << endl;
// Step 5: --------------------------------------------------
// Set security levels on the proxy -------------------------
hres = CoSetProxyBlanket(
pSvc, // Indicates the proxy to set
RPC_C_AUTHN_WINNT, // RPC_C_AUTHN_xxx
RPC_C_AUTHZ_NONE, // RPC_C_AUTHZ_xxx
NULL, // Server principal name
RPC_C_AUTHN_LEVEL_CALL, // RPC_C_AUTHN_LEVEL_xxx
RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
NULL, // client identity
EOAC_NONE // proxy capabilities
);
if (FAILED(hres))
{
cout << "Could not set proxy blanket. Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return uuid; // Program has failed.
}
// Step 6: --------------------------------------------------
// Use the IWbemServices pointer to make requests of WMI ----
// For example, get the name of the operating system
IEnumWbemClassObject* pEnumerator = NULL;
hres = pSvc->ExecQuery(
bstr_t("WQL"),
bstr_t("SELECT UUID FROM Win32_ComputerSystemProduct"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);
if (FAILED(hres))
{
qDebug() << "Query for operating system name failed."
<< " Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return uuid; // Program has failed.
}
// Step 7: -------------------------------------------------
// Get the data from the query in step 6 -------------------
IWbemClassObject *pclsObj;
ULONG uReturn = 0;
while (pEnumerator)
{
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1,
&pclsObj, &uReturn);
if (FAILED(hr) || 0 == uReturn)
{
break;
}
VARIANT vtProp;
// Get the value of the Name property
/*hr = pclsObj->Get(L"VolumeName", 0, &vtProp, 0, 0);
wcout << " VolumeName : " << << endl;
VariantClear(&vtProp);*/
if (FAILED(pclsObj->Get(L"UUID", 0, &vtProp, 0, 0)))
{
qDebug() << "The specified property is not found." << endl;
}
else
{
qDebug() << vtProp.bstrVal << endl;
QString q_str((QChar*)vtProp.bstrVal, wcslen(vtProp.bstrVal));
uuid = q_str;
}
pclsObj->Release();
}
// Cleanup
// ========
pSvc->Release();
pLoc->Release();
pEnumerator->Release();
// pclsObj->Release();
CoUninitialize();
qDebug() << "uuid: " << uuid<< endl;
return uuid;
}