summaryrefslogtreecommitdiffstats
path: root/qemu/qga/vss-win32/vss-common.h
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/qga/vss-win32/vss-common.h')
-rw-r--r--qemu/qga/vss-win32/vss-common.h129
1 files changed, 129 insertions, 0 deletions
diff --git a/qemu/qga/vss-win32/vss-common.h b/qemu/qga/vss-win32/vss-common.h
new file mode 100644
index 000000000..ce14e1429
--- /dev/null
+++ b/qemu/qga/vss-win32/vss-common.h
@@ -0,0 +1,129 @@
+/*
+ * QEMU Guest Agent win32 VSS common declarations
+ *
+ * Copyright Hitachi Data Systems Corp. 2013
+ *
+ * Authors:
+ * Tomoki Sekiyama <tomoki.sekiyama@hds.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef VSS_WIN32_H
+#define VSS_WIN32_H
+
+#define __MIDL_user_allocate_free_DEFINED__
+#include "config-host.h"
+#include <windows.h>
+#include <shlwapi.h>
+
+/* Reduce warnings to include vss.h */
+
+/* Ignore annotations for MS IDE */
+#define __in IN
+#define __out OUT
+#define __RPC_unique_pointer
+#define __RPC_string
+#define __RPC__deref_inout_opt
+#define __RPC__out
+#ifndef __RPC__out_ecount_part
+#define __RPC__out_ecount_part(x, y)
+#endif
+#define _declspec(x)
+#undef uuid
+#define uuid(x)
+
+/* Undef some duplicated error codes redefined in vss.h */
+#undef VSS_E_BAD_STATE
+#undef VSS_E_PROVIDER_NOT_REGISTERED
+#undef VSS_E_PROVIDER_VETO
+#undef VSS_E_OBJECT_NOT_FOUND
+#undef VSS_E_VOLUME_NOT_SUPPORTED
+#undef VSS_E_VOLUME_NOT_SUPPORTED_BY_PROVIDER
+#undef VSS_E_OBJECT_ALREADY_EXISTS
+#undef VSS_E_UNEXPECTED_PROVIDER_ERROR
+#undef VSS_E_INVALID_XML_DOCUMENT
+#undef VSS_E_MAXIMUM_NUMBER_OF_VOLUMES_REACHED
+#undef VSS_E_MAXIMUM_NUMBER_OF_SNAPSHOTS_REACHED
+
+/*
+ * VSS headers must be installed from Microsoft VSS SDK 7.2 available at:
+ * http://www.microsoft.com/en-us/download/details.aspx?id=23490
+ */
+#include "inc/win2003/vss.h"
+
+/* Macros to convert char definitions to wchar */
+#define _L(a) L##a
+#define L(a) _L(a)
+
+/* Constants for QGA VSS Provider */
+
+#define QGA_PROVIDER_NAME "QEMU Guest Agent VSS Provider"
+#define QGA_PROVIDER_LNAME L(QGA_PROVIDER_NAME)
+#define QGA_PROVIDER_VERSION L(QEMU_VERSION)
+
+#define EVENT_NAME_FROZEN "Global\\QGAVSSEvent-frozen"
+#define EVENT_NAME_THAW "Global\\QGAVSSEvent-thaw"
+#define EVENT_NAME_TIMEOUT "Global\\QGAVSSEvent-timeout"
+
+const GUID g_gProviderId = { 0x3629d4ed, 0xee09, 0x4e0e,
+ {0x9a, 0x5c, 0x6d, 0x8b, 0xa2, 0x87, 0x2a, 0xef} };
+const GUID g_gProviderVersion = { 0x11ef8b15, 0xcac6, 0x40d6,
+ {0x8d, 0x5c, 0x8f, 0xfc, 0x16, 0x3f, 0x24, 0xca} };
+
+const CLSID CLSID_QGAVSSProvider = { 0x6e6a3492, 0x8d4d, 0x440c,
+ {0x96, 0x19, 0x5e, 0x5d, 0x0c, 0xc3, 0x1c, 0xa8} };
+
+const TCHAR g_szClsid[] = TEXT("{6E6A3492-8D4D-440C-9619-5E5D0CC31CA8}");
+const TCHAR g_szProgid[] = TEXT("QGAVSSProvider");
+
+/* Enums undefined in VSS SDK 7.2 but defined in newer Windows SDK */
+enum __VSS_VOLUME_SNAPSHOT_ATTRIBUTES {
+ VSS_VOLSNAP_ATTR_NO_AUTORECOVERY = 0x00000002,
+ VSS_VOLSNAP_ATTR_TXF_RECOVERY = 0x02000000
+};
+
+
+/* COM pointer utility; call ->Release() when it goes out of scope */
+template <class T>
+class COMPointer {
+ COMPointer(const COMPointer<T> &p) { } /* no copy */
+ T *p;
+public:
+ COMPointer &operator=(T *new_p)
+ {
+ /* Assignment of a new T* (or NULL) causes release of previous p */
+ if (p && p != new_p) {
+ p->Release();
+ }
+ p = new_p;
+ return *this;
+ }
+ /* Replace by assignment to the pointer of p */
+ T **replace(void)
+ {
+ *this = NULL;
+ return &p;
+ }
+ /* Make COMPointer be used like T* */
+ operator T*() { return p; }
+ T *operator->(void) { return p; }
+ T &operator*(void) { return *p; }
+ operator bool() { return !!p; }
+
+ COMPointer(T *p = NULL) : p(p) { }
+ ~COMPointer() { *this = NULL; } /* Automatic release */
+};
+
+/*
+ * COM initializer; this should declared before COMPointer to uninitialize COM
+ * after releasing COM objects.
+ */
+class COMInitializer {
+public:
+ COMInitializer() { CoInitialize(NULL); }
+ ~COMInitializer() { CoUninitialize(); }
+};
+
+#endif