cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

vss-common.h (3309B)

      1/*
      2 * QEMU Guest Agent win32 VSS common declarations
      3 *
      4 * Copyright Hitachi Data Systems Corp. 2013
      5 *
      6 * Authors:
      7 *  Tomoki Sekiyama   <tomoki.sekiyama@hds.com>
      8 *
      9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
     10 * See the COPYING file in the top-level directory.
     11 */
     12
     13#ifndef VSS_COMMON_H
     14#define VSS_COMMON_H
     15
     16#define __MIDL_user_allocate_free_DEFINED__
     17#include <windows.h>
     18#include <shlwapi.h>
     19
     20/* Reduce warnings to include vss.h */
     21
     22/* Ignore annotations for MS IDE */
     23#define __in  IN
     24#define __out OUT
     25#define __RPC_unique_pointer
     26#define __RPC_string
     27#define __RPC__deref_inout_opt
     28#define __RPC__out
     29#ifndef __RPC__out_ecount_part
     30#define __RPC__out_ecount_part(x, y)
     31#endif
     32#define _declspec(x)
     33#undef uuid
     34#define uuid(x)
     35
     36/* Undef some duplicated error codes redefined in vss.h */
     37#undef VSS_E_BAD_STATE
     38#undef VSS_E_PROVIDER_NOT_REGISTERED
     39#undef VSS_E_PROVIDER_VETO
     40#undef VSS_E_OBJECT_NOT_FOUND
     41#undef VSS_E_VOLUME_NOT_SUPPORTED
     42#undef VSS_E_VOLUME_NOT_SUPPORTED_BY_PROVIDER
     43#undef VSS_E_OBJECT_ALREADY_EXISTS
     44#undef VSS_E_UNEXPECTED_PROVIDER_ERROR
     45#undef VSS_E_INVALID_XML_DOCUMENT
     46#undef VSS_E_MAXIMUM_NUMBER_OF_VOLUMES_REACHED
     47#undef VSS_E_MAXIMUM_NUMBER_OF_SNAPSHOTS_REACHED
     48
     49/*
     50 * VSS headers must be installed from Microsoft VSS SDK 7.2 available at:
     51 * http://www.microsoft.com/en-us/download/details.aspx?id=23490
     52 */
     53#include <inc/win2003/vss.h>
     54#include "vss-handles.h"
     55
     56/* Macros to convert char definitions to wchar */
     57#define _L(a) L##a
     58#define L(a) _L(a)
     59
     60const GUID g_gProviderId = { 0x3629d4ed, 0xee09, 0x4e0e,
     61    {0x9a, 0x5c, 0x6d, 0x8b, 0xa2, 0x87, 0x2a, 0xef} };
     62const GUID g_gProviderVersion = { 0x11ef8b15, 0xcac6, 0x40d6,
     63    {0x8d, 0x5c, 0x8f, 0xfc, 0x16, 0x3f, 0x24, 0xca} };
     64
     65const CLSID CLSID_QGAVSSProvider = { 0x6e6a3492, 0x8d4d, 0x440c,
     66    {0x96, 0x19, 0x5e, 0x5d, 0x0c, 0xc3, 0x1c, 0xa8} };
     67
     68const TCHAR g_szClsid[] = TEXT("{6E6A3492-8D4D-440C-9619-5E5D0CC31CA8}");
     69const TCHAR g_szProgid[] = TEXT("QGAVSSProvider");
     70
     71/* Enums undefined in VSS SDK 7.2 but defined in newer Windows SDK */
     72enum __VSS_VOLUME_SNAPSHOT_ATTRIBUTES {
     73    VSS_VOLSNAP_ATTR_NO_AUTORECOVERY       = 0x00000002,
     74    VSS_VOLSNAP_ATTR_TXF_RECOVERY          = 0x02000000
     75};
     76
     77
     78/* COM pointer utility; call ->Release() when it goes out of scope */
     79template <class T>
     80class COMPointer {
     81    COMPointer(const COMPointer<T> &p) { } /* no copy */
     82    T *p;
     83public:
     84    COMPointer &operator=(T *new_p)
     85    {
     86        /* Assignment of a new T* (or NULL) causes release of previous p */
     87        if (p && p != new_p) {
     88            p->Release();
     89        }
     90        p = new_p;
     91        return *this;
     92    }
     93    /* Replace by assignment to the pointer of p  */
     94    T **replace(void)
     95    {
     96        *this = NULL;
     97        return &p;
     98    }
     99    /* Make COMPointer be used like T* */
    100    operator T*() { return p; }
    101    T *operator->(void) { return p; }
    102    T &operator*(void) { return *p; }
    103    operator bool() { return !!p; }
    104
    105    COMPointer(T *p = NULL) : p(p) { }
    106    ~COMPointer() { *this = NULL; }  /* Automatic release */
    107};
    108
    109/*
    110 * COM initializer; this should declared before COMPointer to uninitialize COM
    111 * after releasing COM objects.
    112 */
    113class COMInitializer {
    114public:
    115    COMInitializer() { CoInitialize(NULL); }
    116    ~COMInitializer() { CoUninitialize(); }
    117};
    118
    119#endif