qemu-ga: vss-win32: Install VSS provider COM+ application service
Currently, qemu-ga for Windows fails to execute guset-fsfreeze-freeze when no user is logging in to Windows, with an error message: {"error":{"class":"GenericError", "desc":"failed to add C:\\ to snapshotset: (error: 8004230f)"}} To enable guest-fsfreeze-freeze/thaw without logging in users, this installs a service to execute qemu-ga VSS provider COM+ application that has full access privileges to the local system. The service will automatically be removed when the COM+ application is deregistered. This patch replaces ICOMAdminCatalog interface with ICOMAdminCatalog2 interface that contains CreateServiceForApplication() method in addition. Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com> Reviewed-by: Gal Hammer <ghammer@redhat.com> Reviewed-by: Yan Vugenfirer <yvugenfi@redhat.com> Tested-by: Yan Vugenfirer <yvugenfi@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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@ -25,8 +25,8 @@ extern HINSTANCE g_hinstDll;
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const GUID CLSID_COMAdminCatalog = { 0xF618C514, 0xDFB8, 0x11d1,
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{0xA2, 0xCF, 0x00, 0x80, 0x5F, 0xC7, 0x92, 0x35} };
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const GUID IID_ICOMAdminCatalog = { 0xDD662187, 0xDFC2, 0x11d1,
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{0xA2, 0xCF, 0x00, 0x80, 0x5F, 0xC7, 0x92, 0x35} };
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const GUID IID_ICOMAdminCatalog2 = { 0x790C6E0B, 0x9194, 0x4cc9,
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{0x94, 0x26, 0xA4, 0x8A, 0x63, 0x18, 0x56, 0x96} };
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const GUID CLSID_WbemLocator = { 0x4590f811, 0x1d3a, 0x11d0,
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{0x89, 0x1f, 0x00, 0xaa, 0x00, 0x4b, 0x2e, 0x24} };
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const GUID IID_IWbemLocator = { 0xdc12a687, 0x737f, 0x11cf,
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@ -141,7 +141,7 @@ static HRESULT QGAProviderFind(
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HRESULT hr;
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COMInitializer initializer;
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COMPointer<IUnknown> pUnknown;
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COMPointer<ICOMAdminCatalog> pCatalog;
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COMPointer<ICOMAdminCatalog2> pCatalog;
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COMPointer<ICatalogCollection> pColl;
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COMPointer<ICatalogObject> pObj;
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_variant_t var;
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@ -149,7 +149,7 @@ static HRESULT QGAProviderFind(
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chk(CoCreateInstance(CLSID_COMAdminCatalog, NULL, CLSCTX_INPROC_SERVER,
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IID_IUnknown, (void **)pUnknown.replace()));
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chk(pUnknown->QueryInterface(IID_ICOMAdminCatalog,
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chk(pUnknown->QueryInterface(IID_ICOMAdminCatalog2,
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(void **)pCatalog.replace()));
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chk(pCatalog->GetCollection(_bstr_t(L"Applications"),
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(IDispatch **)pColl.replace()));
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@ -206,7 +206,7 @@ STDAPI COMRegister(void)
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HRESULT hr;
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COMInitializer initializer;
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COMPointer<IUnknown> pUnknown;
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COMPointer<ICOMAdminCatalog> pCatalog;
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COMPointer<ICOMAdminCatalog2> pCatalog;
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COMPointer<ICatalogCollection> pApps, pRoles, pUsersInRole;
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COMPointer<ICatalogObject> pObj;
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long n;
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@ -229,7 +229,7 @@ STDAPI COMRegister(void)
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chk(CoCreateInstance(CLSID_COMAdminCatalog, NULL, CLSCTX_INPROC_SERVER,
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IID_IUnknown, (void **)pUnknown.replace()));
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chk(pUnknown->QueryInterface(IID_ICOMAdminCatalog,
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chk(pUnknown->QueryInterface(IID_ICOMAdminCatalog2,
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(void **)pCatalog.replace()));
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/* Install COM+ Component */
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@ -273,6 +273,10 @@ STDAPI COMRegister(void)
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goto out;
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}
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chk(pCatalog->CreateServiceForApplication(
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_bstr_t(QGA_PROVIDER_LNAME), _bstr_t(QGA_PROVIDER_LNAME),
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_bstr_t(L"SERVICE_AUTO_START"), _bstr_t(L"SERVICE_ERROR_NORMAL"),
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_bstr_t(L""), _bstr_t(L".\\localsystem"), _bstr_t(L""), FALSE));
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chk(pCatalog->InstallComponent(_bstr_t(QGA_PROVIDER_LNAME),
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_bstr_t(dllPath), _bstr_t(tlbPath),
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_bstr_t("")));
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