[ros-diffs] [ion] 54986: [KERNEL32]: Reimplement BasePushProcessParameters for future extensibility, also cleanup some code paths and fix a few bugs. [KERNEL32]: Add some more SXS and CSRSS structures.

Author: ion
Date: Mon Jan 16 21:27:50 2012
New Revision: 54986

URL: http://svn.reactos.org/svn/reactos?rev=54986&view=rev
Log:
[KERNEL32]: Reimplement BasePushProcessParameters for future extensibility, also cleanup some code paths and fix a few bugs.
[KERNEL32]: Add some more SXS and CSRSS structures.

Modified:
    trunk/reactos/dll/win32/kernel32/client/proc.c
    trunk/reactos/dll/win32/kernel32/include/kernel32.h
    trunk/reactos/include/ndk/rtltypes.h
    trunk/reactos/include/reactos/subsys/csrss/csrss.h

Modified: trunk/reactos/dll/win32/kernel32/client/proc.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/client/p...
==============================================================================
--- trunk/reactos/dll/win32/kernel32/client/proc.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/client/proc.c [iso-8859-1] Mon Jan 16 21:27:50 2012
@@ -774,57 +774,33 @@
     }
 }

-VOID
-WINAPI
-BasepCopyHandles(IN PRTL_USER_PROCESS_PARAMETERS Params,
-                 IN PRTL_USER_PROCESS_PARAMETERS PebParams,
-                 IN BOOL InheritHandles)
-{
-    DPRINT("BasepCopyHandles %p %p, %d\n", Params, PebParams, InheritHandles);
-
-    /* Copy the handle if we are inheriting or if it's a console handle */
-    if ((InheritHandles) || (IsConsoleHandle(PebParams->StandardInput)))
-    {
-        Params->StandardInput = PebParams->StandardInput;
-    }
-
-    if ((InheritHandles) || (IsConsoleHandle(PebParams->StandardOutput)))
-    {
-        Params->StandardOutput = PebParams->StandardOutput;
-    }
-
-    if ((InheritHandles) || (IsConsoleHandle(PebParams->StandardError)))
-    {
-        Params->StandardError = PebParams->StandardError;
-    }
-}
-
-NTSTATUS
-WINAPI
-BasePushProcessParameters(IN HANDLE ProcessHandle,
-                          IN PPEB Peb,
-                          IN LPWSTR ApplicationPathName,
+BOOLEAN
+WINAPI
+BasePushProcessParameters(IN ULONG ParameterFlags,
+                          IN HANDLE ProcessHandle,
+                          IN PPEB RemotePeb,
+                          IN LPCWSTR ApplicationPathName,
                           IN LPWSTR lpCurrentDirectory,
                           IN LPWSTR lpCommandLine,
                           IN LPVOID lpEnvironment,
-                          IN SIZE_T EnvSize,
                           IN LPSTARTUPINFOW StartupInfo,
                           IN DWORD CreationFlags,
-                          IN BOOL InheritHandles)
+                          IN BOOL InheritHandles,
+                          IN ULONG ImageSubsystem,
+                          IN PVOID AppCompatData,
+                          IN ULONG AppCompatDataSize)
 {
     WCHAR FullPath[MAX_PATH + 5];
-    LPWSTR Remaining;
-    LPWSTR DllPathString;
-    PRTL_USER_PROCESS_PARAMETERS ProcessParameters;
-    PRTL_USER_PROCESS_PARAMETERS RemoteParameters = NULL;
+    PWCHAR Remaining, DllPathString, ScanChar;
+    PRTL_USER_PROCESS_PARAMETERS ProcessParameters, RemoteParameters;
+    PVOID RemoteAppCompatData;
     UNICODE_STRING DllPath, ImageName, CommandLine, CurrentDirectory;
+    UNICODE_STRING Desktop, Shell, Runtime, Title;
     NTSTATUS Status;
-    PWCHAR ScanChar;
     ULONG EnviroSize;
     SIZE_T Size;
-    UNICODE_STRING Desktop, Shell, Runtime, Title;
-    PPEB OurPeb = NtCurrentPeb();
-    LPVOID Environment = lpEnvironment;
+    BOOLEAN HavePebLock = FALSE, Result;
+    PPEB Peb = NtCurrentPeb();
     DPRINT("BasePushProcessParameters\n");

/* Get the full path name */
@@ -835,9 +811,14 @@
     if ((Size) && (Size <= (MAX_PATH + 4)))
     {
         /* Get the DLL Path */
-        DllPathString = BaseComputeProcessDllPath(ApplicationPathName,
-                                                  Environment);
-        if (!DllPathString) return STATUS_NO_MEMORY;
+        DllPathString = BaseComputeProcessDllPath((LPWSTR)ApplicationPathName,
+                                                  lpEnvironment);
+        if (!DllPathString)
+        {
+            /* Fail */
+            SetLastError(ERROR_NOT_ENOUGH_MEMORY);
+            return FALSE;
+        }

/* Initialize Strings */
         RtlInitUnicodeString(&DllPath, DllPathString);
@@ -846,14 +827,18 @@
     else
     {
         /* Get the DLL Path */
-        DllPathString = BaseComputeProcessDllPath(FullPath, Environment);
-        if (!DllPathString) return STATUS_NO_MEMORY;
+        DllPathString = BaseComputeProcessDllPath(FullPath, lpEnvironment);
+        if (!DllPathString)
+        {
+            /* Fail */
+            SetLastError(ERROR_NOT_ENOUGH_MEMORY);
+            return FALSE;
+        }

/* Initialize Strings */
         RtlInitUnicodeString(&DllPath, DllPathString);
         RtlInitUnicodeString(&ImageName, FullPath);
     }
-    DPRINT("DllPath: %wZ, ImageName: %wZ\n", DllPath, ImageName);

/* Initialize Strings */
     RtlInitUnicodeString(&CommandLine, lpCommandLine);
@@ -889,38 +874,50 @@
     Runtime.Buffer = (LPWSTR)StartupInfo->lpReserved2;
     Runtime.MaximumLength = Runtime.Length = StartupInfo->cbReserved2;

+    /* Enforce no app compat data if the pointer was NULL */
+    if (!AppCompatData) AppCompatDataSize = 0;
+
     /* Create the Parameter Block */
-    DPRINT("Creating Process Parameters: %wZ %wZ %wZ %wZ %wZ %wZ %wZ\n",
-            &ImageName, &DllPath, &CommandLine, &Desktop, &Title, &Shell,
-            &Runtime);
+    ProcessParameters = NULL;
     Status = RtlCreateProcessParameters(&ProcessParameters,
                                         &ImageName,
                                         &DllPath,
                                         lpCurrentDirectory ?
                                         &CurrentDirectory : NULL,
                                         &CommandLine,
-                                        Environment,
+                                        lpEnvironment,
                                         &Title,
                                         &Desktop,
                                         &Shell,
                                         &Runtime);
-    if (!NT_SUCCESS(Status))
-    {
-        DPRINT1("Failed to create process parameters!\n");
-        return Status;
-    }
+    if (!NT_SUCCESS(Status)) goto FailPath;

/* Clear the current directory handle if not inheriting */
     if (!InheritHandles) ProcessParameters->CurrentDirectory.Handle = NULL;

+    /* Check if the user passed in an environment */
+    if (lpEnvironment)
+    {
+        /* We should've made it part of the parameters block, enforce this */
+        ASSERT(ProcessParameters->Environment == lpEnvironment);
+        lpEnvironment = ProcessParameters->Environment;
+    }
+    else
+    {
+        /* The user did not, so use the one from the current PEB */
+        HavePebLock = TRUE;
+        RtlAcquirePebLock();
+        lpEnvironment = Peb->ProcessParameters->Environment;
+    }
+
     /* Save pointer and start lookup */
-    Environment = ScanChar = ProcessParameters->Environment;
-    if (Environment)
+    ScanChar = lpEnvironment;
+    if (lpEnvironment)
     {
         /* Find the environment size */
-        while (*ScanChar) ScanChar += wcslen(ScanChar) + 1;
-        EnviroSize = (ULONG_PTR)ScanChar - (ULONG_PTR)Environment;
-        DPRINT("EnvironmentSize %ld\n", EnviroSize);
+        while ((ScanChar[0]) || (ScanChar[1])) ++ScanChar;
+        ScanChar += (2 * sizeof(UNICODE_NULL));
+        EnviroSize = (ULONG_PTR)ScanChar - (ULONG_PTR)lpEnvironment;

/* Allocate and Initialize new Environment Block */
         Size = EnviroSize;
@@ -931,23 +928,25 @@
                                          &Size,
                                          MEM_COMMIT,
                                          PAGE_READWRITE);
-        if (!NT_SUCCESS(Status))
-        {
-            DPRINT1("Failed to allocate Environment Block\n");
-            return Status;
-        }
+        if (!NT_SUCCESS(Status)) goto FailPath;

/* Write the Environment Block */
         Status = ZwWriteVirtualMemory(ProcessHandle,
                                       ProcessParameters->Environment,
-                                      Environment,
+                                      lpEnvironment,
                                       EnviroSize,
                                       NULL);
-        if (!NT_SUCCESS(Status))
-        {
-            DPRINT1("Failed to write Environment Block\n");
-            return Status;
-        }
+
+        /* No longer need the PEB lock anymore */
+        if (HavePebLock)
+        {
+            /* Release it */
+            RtlReleasePebLock();
+            HavePebLock = FALSE;
+        }
+
+        /* Check if the write failed */
+        if (!NT_SUCCESS(Status)) goto FailPath;
     }

/* Write new parameters */
@@ -965,7 +964,6 @@
     if (StartupInfo->dwFlags &
         (STARTF_USESTDHANDLES | STARTF_USEHOTKEY | STARTF_SHELLPRIVATE))
     {
-        DPRINT("Using Standard Handles\n");
         ProcessParameters->StandardInput = StartupInfo->hStdInput;
         ProcessParameters->StandardOutput = StartupInfo->hStdOutput;
         ProcessParameters->StandardError = StartupInfo->hStdError;
@@ -987,17 +985,28 @@
     else
     {
         /* Inherit our Console Handle */
-        ProcessParameters->ConsoleHandle = OurPeb->ProcessParameters->ConsoleHandle;
-
-        /* Is the shell trampling on our Handles? */
+        ProcessParameters->ConsoleHandle = Peb->ProcessParameters->ConsoleHandle;
+
+        /* Make sure that the shell isn't trampling on our handles first */
         if (!(StartupInfo->dwFlags &
              (STARTF_USESTDHANDLES | STARTF_USEHOTKEY | STARTF_SHELLPRIVATE)))
         {
-            /* Use handles from PEB, if inheriting or they are console */
-            DPRINT("Copying handles from parent\n");
-            BasepCopyHandles(ProcessParameters,
-                             OurPeb->ProcessParameters,
-                             InheritHandles);
+            /* Copy the handle if we are inheriting or if it's a console handle */
+            if ((InheritHandles) ||
+                (IsConsoleHandle(Peb->ProcessParameters->StandardInput)))
+            {
+                ProcessParameters->StandardInput = Peb->ProcessParameters->StandardInput;
+            }
+            if ((InheritHandles) ||
+                (IsConsoleHandle(Peb->ProcessParameters->StandardOutput)))
+            {
+                ProcessParameters->StandardOutput = Peb->ProcessParameters->StandardOutput;
+            }
+            if ((InheritHandles) ||
+                (IsConsoleHandle(Peb->ProcessParameters->StandardError)))
+            {
+                ProcessParameters->StandardError = Peb->ProcessParameters->StandardError;
+            }
         }
     }

@@ -1009,30 +1018,27 @@
     }

/* See if the first 1MB should be reserved */
-    if ((ULONG_PTR)ApplicationPathName & 1)
+    if (ParameterFlags & 1)
     {
         ProcessParameters->Flags |= RTL_USER_PROCESS_PARAMETERS_RESERVE_1MB;
     }

/* See if the first 16MB should be reserved */
-    if ((ULONG_PTR)ApplicationPathName & 2)
+    if (ParameterFlags & 2)
     {
         ProcessParameters->Flags |= RTL_USER_PROCESS_PARAMETERS_RESERVE_16MB;
     }

/* Allocate memory for the parameter block */
     Size = ProcessParameters->Length;
+    RemoteParameters = NULL;
     Status = NtAllocateVirtualMemory(ProcessHandle,
                                      (PVOID*)&RemoteParameters,
                                      0,
                                      &Size,
                                      MEM_COMMIT,
                                      PAGE_READWRITE);
-    if (!NT_SUCCESS(Status))
-    {
-        DPRINT1("Failed to allocate Parameters Block\n");
-        return Status;
-    }
+    if (!NT_SUCCESS(Status)) goto FailPath;

/* Set the allocated size */
     ProcessParameters->MaximumLength = Size;
@@ -1053,33 +1059,71 @@
                                   ProcessParameters,
                                   ProcessParameters->Length,
                                   NULL);
-    if (!NT_SUCCESS(Status))
-    {
-        DPRINT1("Failed to write Parameters Block\n");
-        return Status;
-    }
+    if (!NT_SUCCESS(Status)) goto FailPath;

/* Write the PEB Pointer */
     Status = NtWriteVirtualMemory(ProcessHandle,
-                                  &Peb->ProcessParameters,
+                                  &RemotePeb->ProcessParameters,
                                   &RemoteParameters,
                                   sizeof(PVOID),
                                   NULL);
-    if (!NT_SUCCESS(Status))
-    {
-        DPRINT1("Failed to write Parameters Block\n");
-        return Status;
-    }
-
-    /* FIXME: Write Peb->ImageSubSystem */
-
-
+    if (!NT_SUCCESS(Status)) goto FailPath;
+    
+    /* Check if there's any app compat data to write */
+    RemoteAppCompatData = NULL;
+    if (AppCompatData)
+    {
+        /* Allocate some space for the application compatibility data */
+        Size = AppCompatDataSize;
+        Status = NtAllocateVirtualMemory(ProcessHandle,
+                                         &RemoteAppCompatData,
+                                         0,
+                                         &Size,
+                                         MEM_COMMIT,
+                                         PAGE_READWRITE);
+        if (!NT_SUCCESS(Status)) goto FailPath;
+        
+        /* Write the application compatibility data */
+        Status = NtWriteVirtualMemory(ProcessHandle,
+                                      RemoteAppCompatData,
+                                      AppCompatData,
+                                      AppCompatDataSize,
+                                      NULL);
+        if (!NT_SUCCESS(Status)) goto FailPath;
+    }
+        
+    /* Write the PEB Pointer to the app compat data (might be NULL) */
+    Status = NtWriteVirtualMemory(ProcessHandle,
+                                  &RemotePeb->pShimData,
+                                  &RemoteAppCompatData,
+                                  sizeof(PVOID),
+                                  NULL);
+    if (!NT_SUCCESS(Status)) goto FailPath;
+
+    /* Now write Peb->ImageSubSystem */
+    if (ImageSubsystem)
+    {
+        NtWriteVirtualMemory(ProcessHandle,
+                             &RemotePeb->ImageSubsystem,
+                             &ImageSubsystem,
+                             sizeof(ImageSubsystem),
+                             NULL);
+    }
+    
+    /* Success path */
+    Result = TRUE;
+
+Quickie:
     /* Cleanup */
+    if (HavePebLock) RtlReleasePebLock();
     RtlFreeHeap(RtlGetProcessHeap(), 0, DllPath.Buffer);
-    RtlDestroyProcessParameters(ProcessParameters);
-
-    DPRINT("Completed\n");
-    return STATUS_SUCCESS;
+    if (ProcessParameters) RtlDestroyProcessParameters(ProcessParameters);
+    return Result;
+FailPath:
+    DPRINT1("Failure to create proecss parameters: %lx\n", Status);
+    BaseSetLastNTError(Status);
+    Result = FALSE;
+    goto Quickie;
 }

VOID
@@ -3058,29 +3102,26 @@

/* Create Process Environment */
     RemotePeb = ProcessBasicInfo.PebBaseAddress;
-    Status = BasePushProcessParameters(hProcess,
-                                       RemotePeb,
-                                       (LPWSTR)lpApplicationName,
-                                       CurrentDirectory,
-                                       (QuotesNeeded || CmdLineIsAppName || Escape) ?
-                                       QuotedCmdLine : lpCommandLine,
-                                       lpEnvironment,
-                                       EnvSize,
-                                       &StartupInfo,
-                                       dwCreationFlags,
-                                       bInheritHandles);
+    Ret = BasePushProcessParameters(0,
+                                    hProcess,
+                                    RemotePeb,
+                                    (LPWSTR)lpApplicationName,
+                                    CurrentDirectory,
+                                    (QuotesNeeded || CmdLineIsAppName || Escape) ?
+                                    QuotedCmdLine : lpCommandLine,
+                                    lpEnvironment,
+                                    &StartupInfo,
+                                    dwCreationFlags,
+                                    bInheritHandles,
+                                    0,
+                                    NULL,
+                                    0);
+    if (!Ret) goto Cleanup;

/* Cleanup Environment */
     if (lpEnvironment && !(dwCreationFlags & CREATE_UNICODE_ENVIRONMENT))
     {
         RtlDestroyEnvironment(lpEnvironment);
-    }
-
-    if (!NT_SUCCESS(Status))
-    {
-        DPRINT1("Could not initialize Process Environment\n");
-        BaseSetLastNTError(Status);
-        goto Cleanup;
     }

/* Close the section */

Modified: trunk/reactos/dll/win32/kernel32/include/kernel32.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/include/...
==============================================================================
--- trunk/reactos/dll/win32/kernel32/include/kernel32.h [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/include/kernel32.h [iso-8859-1] Mon Jan 16 21:27:50 2012
@@ -450,6 +450,19 @@
     LARGE_INTEGER ViewBase;
 } BASE_MSG_SXS_HANDLES, *PBASE_MSG_SXS_HANDLES;

+typedef struct _SXS_WIN32_NT_PATH_PAIR
+{
+    PUNICODE_STRING Win32;
+    PUNICODE_STRING Nt;
+} SXS_WIN32_NT_PATH_PAIR, *PSXS_WIN32_NT_PATH_PAIR;
+
+typedef struct _SXS_OVERRIDE_MANIFEST
+{
+    PCWCH Name;
+    PVOID Address;
+    ULONG Size;
+} SXS_OVERRIDE_MANIFEST, *PSXS_OVERRIDE_MANIFEST;
+
 NTSTATUS
 NTAPI
 BasepConfigureAppCertDlls(
@@ -464,6 +477,15 @@
 extern LIST_ENTRY BasepAppCertDllsList;
 extern RTL_CRITICAL_SECTION gcsAppCert;

+BOOL
+WINAPI
+BaseUpdateVDMEntry(
+    IN ULONG UpdateIndex,
+    IN OUT PHANDLE WaitHandle,
+    IN ULONG IndexInfo,
+    IN ULONG BinaryType
+);
+
 VOID
 WINAPI
 BaseMarkFileForDelete(
@@ -471,3 +493,10 @@
     IN ULONG FileAttributes
 );

+/* FIXME: This is EXPORTED! It should go in an external kernel32.h header */
+VOID
+WINAPI
+BasepFreeAppCompatData(
+    IN PVOID AppCompatData,
+    IN PVOID AppCompatSxsData
+);

Modified: trunk/reactos/include/ndk/rtltypes.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/ndk/rtltypes.h?rev=...
==============================================================================
--- trunk/reactos/include/ndk/rtltypes.h [iso-8859-1] (original)
+++ trunk/reactos/include/ndk/rtltypes.h [iso-8859-1] Mon Jan 16 21:27:50 2012
@@ -1380,6 +1380,26 @@
     PVOID *Trace;
 } RTL_TRACE_BLOCK, *PRTL_TRACE_BLOCK;

+//
+// Auto-Managed Rtl* String Buffer
+//
+typedef struct _RTL_BUFFER
+{
+    PUCHAR Buffer;
+    PUCHAR StaticBuffer;
+    SIZE_T Size;
+    SIZE_T StaticSize;
+    SIZE_T ReservedForAllocatedSize;
+    PVOID ReservedForIMalloc;
+} RTL_BUFFER, *PRTL_BUFFER;
+
+typedef struct _RTL_UNICODE_STRING_BUFFER
+{
+    UNICODE_STRING String;
+    RTL_BUFFER ByteBuffer;
+    WCHAR MinimumStaticBufferForTerminalNul;
+} RTL_UNICODE_STRING_BUFFER, *PRTL_UNICODE_STRING_BUFFER;
+
 #ifndef NTOS_MODE_USER

//

Modified: trunk/reactos/include/reactos/subsys/csrss/csrss.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/subsys/csrs...
==============================================================================
--- trunk/reactos/include/reactos/subsys/csrss/csrss.h [iso-8859-1] (original)
+++ trunk/reactos/include/reactos/subsys/csrss/csrss.h [iso-8859-1] Mon Jan 16 21:27:50 2012
@@ -31,11 +31,46 @@
     ULONG Dummy;
 } CSRSS_CONNECT_PROCESS, *PCSRSS_CONNECT_PROCESS;

-typedef struct
-{
-   HANDLE NewProcessId;
-   ULONG Flags;
-   BOOL bInheritHandles;
+typedef struct _BASE_SXS_CREATEPROCESS_MSG
+{
+    ULONG Flags;
+    ULONG ProcessParameterFlags;
+    HANDLE FileHandle;    
+    UNICODE_STRING SxsWin32ExePath;
+    UNICODE_STRING SxsNtExePath;
+    SIZE_T OverrideManifestOffset;
+    ULONG OverrideManifestSize;
+    SIZE_T OverridePolicyOffset;
+    ULONG OverridePolicySize;
+    PVOID PEManifestAddress;
+    ULONG PEManifestSize;
+    UNICODE_STRING CultureFallbacks;
+    ULONG Unknown[7];
+    UNICODE_STRING AssemblyName;
+} BASE_SXS_CREATEPROCESS_MSG, *PBASE_SXS_CREATEPROCESS_MSG;
+
+typedef struct
+{
+    //
+    // NT-type structure (BASE_CREATEPROCESS_MSG)
+    //
+    HANDLE ProcessHandle;
+    HANDLE ThreadHandle;
+    CLIENT_ID ClientId;
+    ULONG CreationFlags;
+    ULONG VdmBinaryType;
+    ULONG VdmTask;
+    HANDLE hVDM;
+    BASE_SXS_CREATEPROCESS_MSG Sxs;
+    PVOID PebAddressNative;
+    ULONG PebAddressWow64;
+    USHORT ProcessorArchitecture;
+    //
+    // ReactOS Data
+    //
+    HANDLE NewProcessId;
+    ULONG Flags;
+    BOOL bInheritHandles;
 } CSRSS_CREATE_PROCESS, *PCSRSS_CREATE_PROCESS;

typedef struct
@@ -547,6 +582,38 @@
     HANDLE hParent;
     ULONG ExitCode;
 } CSRSS_GET_VDM_EXIT_CODE, *PCSRSS_GET_VDM_EXIT_CODE;
+
+typedef struct
+{
+    ULONG iTask;
+    HANDLE ConsoleHandle;
+    ULONG BinaryType;
+    HANDLE WaitObjectForParent;
+    HANDLE StdIn;
+    HANDLE StdOut;
+    HANDLE StdErr;
+    ULONG CodePage;
+    ULONG dwCreationFlags;
+    PCHAR CmdLine;
+    PCHAR appName;
+    PCHAR PifFile;
+    PCHAR CurDirectory;
+    PCHAR Env;
+    ULONG EnvLen;
+    PVOID StartupInfo;
+    PCHAR Desktop;
+    ULONG DesktopLen;
+    PCHAR Title;
+    ULONG TitleLen;
+    PCHAR Reserved;
+    ULONG ReservedLen;
+    USHORT CmdLen;
+    USHORT AppLen;
+    USHORT PifLen;
+    USHORT CurDirectoryLen;
+    USHORT CurDrive;
+    USHORT VDMState;
+} CSRSS_CHECK_VDM, *PCSRSS_CHECK_VDM;

#define CSR_API_MESSAGE_HEADER_SIZE(Type)       (FIELD_OFFSET(CSR_API_MESSAGE, Data) + sizeof(Type))
 #define CSRSS_MAX_WRITE_CONSOLE                 (LPC_MAX_DATA_LENGTH - CSR_API_MESSAGE_HEADER_SIZE(CSRSS_WRITE_CONSOLE))
@@ -632,6 +699,7 @@
 #define SOUND_SENTRY                  (0x50)
 #define UPDATE_VDM_ENTRY              (0x51)
 #define GET_VDM_EXIT_CODE             (0x52)
+#define CHECK_VDM                     (0x53)

/* Keep in sync with definition below. */
 #define CSRSS_HEADER_SIZE (sizeof(PORT_MESSAGE) + sizeof(ULONG) + sizeof(NTSTATUS))
@@ -718,6 +786,7 @@
         CSRSS_SOUND_SENTRY SoundSentryRequest;
         CSRSS_UPDATE_VDM_ENTRY UpdateVdmEntry;
         CSRSS_GET_VDM_EXIT_CODE GetVdmExitCode;
+        CSRSS_CHECK_VDM CheckVdm;
     } Data;
 } CSR_API_MESSAGE, *PCSR_API_MESSAGE;