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Merge pull request #76 from CherryPill/issue_75
Issue 75
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| #include "WMIWBEMINFO.h" | ||
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| WMIWBEMINFO* WMIWBEMINFO::currentInstance; | ||
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| WMIWBEMINFO* WMIWBEMINFO::getWMIWBEMINFOInstance() { | ||
| if (currentInstance == nullptr) { | ||
| currentInstance = new WMIWBEMINFO(); | ||
| } | ||
| return currentInstance; | ||
| } | ||
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| IWbemLocator* WMIWBEMINFO::getWbemLocator() { | ||
| return this->pLoc; | ||
| } | ||
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| IWbemServices* WMIWBEMINFO::getWbemServices() { | ||
| return this->pSvc; | ||
| } | ||
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| HRESULT WMIWBEMINFO::getHres() { | ||
| return this->hres; | ||
| } | ||
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| WMIWBEMINFO::~WMIWBEMINFO() { | ||
| this->pSvc->Release(); | ||
| this->pLoc->Release(); | ||
| CoUninitialize(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| #pragma once | ||
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| #include <Wbemidl.h> | ||
| #include <tchar.h> | ||
| #include <comdef.h> | ||
| #include <exception> | ||
| class WMIWBEMINFO | ||
| { | ||
| private: | ||
| static WMIWBEMINFO* currentInstance; | ||
| HRESULT hres; | ||
| IWbemServices* pSvc; | ||
| IWbemLocator* pLoc; | ||
| WMIWBEMINFO() { | ||
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| // Step 1: -------------------------------------------------- | ||
| // Initialize COM. ------------------------------------------ | ||
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| hres = CoInitializeEx(0, COINIT_MULTITHREADED); | ||
| if (FAILED(hres)) { | ||
| throw std::exception("Failed to initialize COM library"); | ||
| } | ||
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| // Step 2: -------------------------------------------------- | ||
| // Set general COM security levels -------------------------- | ||
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| 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 | ||
| ); | ||
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| if (FAILED(hres)) { | ||
| CoUninitialize(); | ||
| throw std::exception("Failed to initialize COM security levels"); | ||
| } | ||
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| //obtain the initial locator to WMI | ||
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| this->pLoc = NULL; | ||
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| hres = CoCreateInstance( | ||
| CLSID_WbemLocator, | ||
| 0, | ||
| CLSCTX_INPROC_SERVER, | ||
| IID_IWbemLocator, (LPVOID*)& pLoc); | ||
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| if (FAILED(hres)) { | ||
| CoUninitialize(); | ||
| throw std::exception("Failed to create IWbemLocator object"); | ||
| } | ||
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| // Step 4: ----------------------------------------------------- | ||
| // Connect to WMI through the IWbemLocator::ConnectServer method | ||
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| this->pSvc = NULL; | ||
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| // 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 (for example, Kerberos) | ||
| 0, // Context object | ||
| &pSvc // pointer to IWbemServices proxy | ||
| ); | ||
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| if (FAILED(hres)) { | ||
| pLoc->Release(); | ||
| CoUninitialize(); | ||
| throw std::exception("Could not connect to root/cimv2 namespace"); | ||
| } | ||
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| // Step 5: -------------------------------------------------- | ||
| // Set security levels on the proxy ------------------------- | ||
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| 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 | ||
| ); | ||
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| if (FAILED(hres)) { | ||
| pSvc->Release(); | ||
| pLoc->Release(); | ||
| CoUninitialize(); | ||
| throw std::exception("Could not set proxy blanket"); | ||
| } | ||
| } | ||
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| public: | ||
| static WMIWBEMINFO* getWMIWBEMINFOInstance(); | ||
| IWbemLocator *getWbemLocator(); | ||
| IWbemServices* getWbemServices(); | ||
| HRESULT getHres(); | ||
| ~WMIWBEMINFO(); | ||
| }; | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| #include "WMIWBEMINFO.h" | ||
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| WMIWBEMINFO* WMIWBEMINFO::getWMIWBEMInfoInstance() { | ||
| if (!currentInstance) { | ||
| currentInstance = new WMIWBEMINFO(); | ||
| } | ||
| return currentInstance; | ||
| } | ||
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| WMIWBEMINFO::~WMIWBEMINFO() | ||
| { | ||
| } |
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