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* [Qemu-devel] [PATCH] qemu-ga: vss-win32: Install VSS provider COM+ application service
@ 2013-11-01 21:47 Tomoki Sekiyama
  2013-11-03  9:59 ` Gal Hammer
  2013-11-22 21:17 ` [Qemu-devel] " Michael Roth
  0 siblings, 2 replies; 6+ messages in thread
From: Tomoki Sekiyama @ 2013-11-01 21:47 UTC (permalink / raw)
  To: qemu-devel; +Cc: ghammer, mdroth, lcapitulino, pbonzini, seiji.aguchi, areis

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>
---
 qga/vss-win32/install.cpp |   16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/qga/vss-win32/install.cpp b/qga/vss-win32/install.cpp
index 37731a7..b791a6c 100644
--- a/qga/vss-win32/install.cpp
+++ b/qga/vss-win32/install.cpp
@@ -25,8 +25,8 @@ extern HINSTANCE g_hinstDll;
 
 const GUID CLSID_COMAdminCatalog = { 0xF618C514, 0xDFB8, 0x11d1,
     {0xA2, 0xCF, 0x00, 0x80, 0x5F, 0xC7, 0x92, 0x35} };
-const GUID IID_ICOMAdminCatalog = { 0xDD662187, 0xDFC2, 0x11d1,
-    {0xA2, 0xCF, 0x00, 0x80, 0x5F, 0xC7, 0x92, 0x35} };
+const GUID IID_ICOMAdminCatalog2 = { 0x790C6E0B, 0x9194, 0x4cc9,
+    {0x94, 0x26, 0xA4, 0x8A, 0x63, 0x18, 0x56, 0x96} };
 const GUID CLSID_WbemLocator = { 0x4590f811, 0x1d3a, 0x11d0,
     {0x89, 0x1f, 0x00, 0xaa, 0x00, 0x4b, 0x2e, 0x24} };
 const GUID IID_IWbemLocator = { 0xdc12a687, 0x737f, 0x11cf,
@@ -141,7 +141,7 @@ static HRESULT QGAProviderFind(
     HRESULT hr;
     COMInitializer initializer;
     COMPointer<IUnknown> pUnknown;
-    COMPointer<ICOMAdminCatalog> pCatalog;
+    COMPointer<ICOMAdminCatalog2> pCatalog;
     COMPointer<ICatalogCollection> pColl;
     COMPointer<ICatalogObject> pObj;
     _variant_t var;
@@ -149,7 +149,7 @@ static HRESULT QGAProviderFind(
 
     chk(CoCreateInstance(CLSID_COMAdminCatalog, NULL, CLSCTX_INPROC_SERVER,
                          IID_IUnknown, (void **)pUnknown.replace()));
-    chk(pUnknown->QueryInterface(IID_ICOMAdminCatalog,
+    chk(pUnknown->QueryInterface(IID_ICOMAdminCatalog2,
                                  (void **)pCatalog.replace()));
     chk(pCatalog->GetCollection(_bstr_t(L"Applications"),
                                 (IDispatch **)pColl.replace()));
@@ -206,7 +206,7 @@ STDAPI COMRegister(void)
     HRESULT hr;
     COMInitializer initializer;
     COMPointer<IUnknown> pUnknown;
-    COMPointer<ICOMAdminCatalog> pCatalog;
+    COMPointer<ICOMAdminCatalog2> pCatalog;
     COMPointer<ICatalogCollection> pApps, pRoles, pUsersInRole;
     COMPointer<ICatalogObject> pObj;
     long n;
@@ -229,7 +229,7 @@ STDAPI COMRegister(void)
 
     chk(CoCreateInstance(CLSID_COMAdminCatalog, NULL, CLSCTX_INPROC_SERVER,
                          IID_IUnknown, (void **)pUnknown.replace()));
-    chk(pUnknown->QueryInterface(IID_ICOMAdminCatalog,
+    chk(pUnknown->QueryInterface(IID_ICOMAdminCatalog2,
                                  (void **)pCatalog.replace()));
 
     /* Install COM+ Component */
@@ -273,6 +273,10 @@ STDAPI COMRegister(void)
         goto out;
     }
 
+    chk(pCatalog->CreateServiceForApplication(
+            _bstr_t(QGA_PROVIDER_LNAME), _bstr_t(QGA_PROVIDER_LNAME),
+            _bstr_t(L"SERVICE_AUTO_START"), _bstr_t(L"SERVICE_ERROR_NORMAL"),
+            _bstr_t(L""), _bstr_t(L".\\localsystem"), _bstr_t(L""), FALSE));
     chk(pCatalog->InstallComponent(_bstr_t(QGA_PROVIDER_LNAME),
                                    _bstr_t(dllPath), _bstr_t(tlbPath),
                                    _bstr_t("")));

^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [Qemu-devel] [PULL 0/1 for-1.7] qemu-ga fsfreeze fix for Windows
@ 2013-11-22 21:08 Michael Roth
  2013-11-22 21:08 ` [Qemu-devel] [PATCH] qemu-ga: vss-win32: Install VSS provider COM+ application service Michael Roth
  0 siblings, 1 reply; 6+ messages in thread
From: Michael Roth @ 2013-11-22 21:08 UTC (permalink / raw)
  To: qemu-devel; +Cc: tomoki.sekiyama, aliguori

Hi Anthony,

Please pull the following fix, which allows guest-freeze-fsfreeze to be
executed while a user is not logged in to the guest.

The following changes since commit 607bb022f2a44797cbf40e85e84da4134e2f0e01:

  Update version for 1.7.0-rc1 release (2013-11-21 08:11:47 -0800)

are available in the git repository at:

  git://github.com/mdroth/qemu.git qga-pull-2013-11-22

for you to fetch changes up to 3c040d5cba585e27eded8efc121ef599723581f8:

  qemu-ga: vss-win32: Install VSS provider COM+ application service (2013-11-22 14:54:42 -0600)

----------------------------------------------------------------
Tomoki Sekiyama (1):
      qemu-ga: vss-win32: Install VSS provider COM+ application service

 qga/vss-win32/install.cpp |   16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-11-22 21:17 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-11-01 21:47 [Qemu-devel] [PATCH] qemu-ga: vss-win32: Install VSS provider COM+ application service Tomoki Sekiyama
2013-11-03  9:59 ` Gal Hammer
2013-11-15 17:39   ` [Qemu-devel] Ping " Tomoki Sekiyama
2013-11-17 15:29     ` Yan Vugenfirer
2013-11-22 21:17 ` [Qemu-devel] " Michael Roth
  -- strict thread matches above, loose matches on Subject: below --
2013-11-22 21:08 [Qemu-devel] [PULL 0/1 for-1.7] qemu-ga fsfreeze fix for Windows Michael Roth
2013-11-22 21:08 ` [Qemu-devel] [PATCH] qemu-ga: vss-win32: Install VSS provider COM+ application service Michael Roth

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