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[NTOSKRNL/WIN32K]

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Always call the win32 process callout from PsConvertToGuiThread and handle the case where we alrady have an allocated win32 process there. (The original win32k sometimes allocates a win32 process, but doesn't initialize it, so it needs to be called again to do so)

svn path=/trunk/; revision=61072
This commit is contained in:
Timo Kreuzer 2013-11-22 11:48:51 +00:00
parent b5f60c3595
commit dfc5f7e3fa
2 changed files with 21 additions and 17 deletions
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10
reactos/ntoskrnl/ps/win32.c
View file

@ -82,13 +82,9 @@ PsConvertToGuiThread(VOID)
MmDeleteKernelStack(OldStack, FALSE);
}
/* This check is bizare. Check out win32k later */
if (!Process->Win32Process)
{
/* Now tell win32k about us */
Status = PspW32ProcessCallout(Process, TRUE);
if (!NT_SUCCESS(Status)) return Status;
}
/* Always do the process callout! */
Status = PspW32ProcessCallout(Process, TRUE);
if (!NT_SUCCESS(Status)) return Status;
/* Set the new service table */
Thread->Tcb.ServiceTable = KeServiceDescriptorTableShadow;

28
reactos/win32ss/user/ntuser/main.c
View file

@ -57,7 +57,7 @@ Win32kProcessCallback(struct _EPROCESS *Process,
BOOLEAN Create)
{
PPROCESSINFO ppiCurrent, *pppi;
DECLARE_RETURN(NTSTATUS);
NTSTATUS Status;
ASSERT(Process->Peb);
@ -69,18 +69,26 @@ Win32kProcessCallback(struct _EPROCESS *Process,
LARGE_INTEGER Offset;
PVOID UserBase = NULL;
PRTL_USER_PROCESS_PARAMETERS pParams = Process->Peb->ProcessParameters;
NTSTATUS Status;
ASSERT(PsGetProcessWin32Process(Process) == NULL);
/* We might be called with an already allocated win32 process */
ppiCurrent = PsGetProcessWin32Process(Process);
if (ppiCurrent != NULL)
{
/* There is no more to do for us (this is a success code!) */
Status = STATUS_ALREADY_WIN32;
goto Leave;
}
/* Allocate a new win32 process */
ppiCurrent = ExAllocatePoolWithTag(NonPagedPool,
sizeof(PROCESSINFO),
USERTAG_PROCESSINFO);
if (ppiCurrent == NULL)
{
ERR_CH(UserProcess, "Failed to allocate ppi for PID:0x%lx\n", HandleToUlong(Process->UniqueProcessId));
RETURN( STATUS_NO_MEMORY);
ERR_CH(UserProcess, "Failed to allocate ppi for PID:0x%lx\n",
HandleToUlong(Process->UniqueProcessId));
Status = STATUS_NO_MEMORY;
goto Leave;
}
RtlZeroMemory(ppiCurrent, sizeof(PROCESSINFO));
@ -111,7 +119,7 @@ Win32kProcessCallback(struct _EPROCESS *Process,
if (!NT_SUCCESS(Status))
{
TRACE_CH(UserProcess,"Failed to map the global heap! 0x%x\n", Status);
RETURN(Status);
goto Leave;
}
ppiCurrent->HeapMappings.Next = NULL;
ppiCurrent->HeapMappings.KernelMapping = (PVOID)GlobalUserHeap;
@ -241,11 +249,11 @@ Win32kProcessCallback(struct _EPROCESS *Process,
ExFreePoolWithTag(ppiCurrent, USERTAG_PROCESSINFO);
}
RETURN( STATUS_SUCCESS);
Status = STATUS_SUCCESS;
CLEANUP:
Leave:
UserLeave();
END_CLEANUP;
return Status;
}
NTSTATUS NTAPI