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[BASESRV]

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Implement a function that creates a pair of event handles - BaseSrvCreatePairWaitHandles.
As already explained in the comments of BaseCheckForVDM (in kernel32), the hParent parameter
is actually an event handle (or more precisely, the client event handle), not a process handle.


svn path=/branches/ntvdm/; revision=62367
This commit is contained in:
Aleksandar Andrejevic 2014-03-01 15:13:54 +00:00
parent f488f7003e
commit d01148ac9b
2 changed files with 27 additions and 2 deletions
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26
subsystems/win/basesrv/vdm.c
View file

@ -166,6 +166,27 @@ BOOLEAN NTAPI BaseSrvIsVdmAllowed(VOID)
return VdmAllowed;
}
NTSTATUS NTAPI BaseSrvCreatePairWaitHandles(PHANDLE ServerEvent, PHANDLE ClientEvent)
{
NTSTATUS Status;
/* Create the event */
Status = NtCreateEvent(ServerEvent, EVENT_ALL_ACCESS, NULL, NotificationEvent, FALSE);
if (!NT_SUCCESS(Status)) return Status;
/* Duplicate the event into the client process */
Status = NtDuplicateObject(NtCurrentProcess(),
*ServerEvent,
CsrGetClientThread()->Process->ProcessHandle,
ClientEvent,
0,
0,
DUPLICATE_SAME_ATTRIBUTES | DUPLICATE_SAME_ACCESS);
if (!NT_SUCCESS(Status)) NtClose(*ServerEvent);
return Status;
}
VOID NTAPI BaseInitializeVDM(VOID)
{
/* Initialize the list head */
@ -276,6 +297,9 @@ CSR_API(BaseSrvCheckVDM)
DosRecord->ExitCode = 0;
// TODO: The DOS record structure is incomplete
Status = BaseSrvCreatePairWaitHandles(&DosRecord->ServerEvent, &DosRecord->ClientEvent);
if (!NT_SUCCESS(Status)) goto Cleanup;
/* Add the DOS record */
InsertHeadList(&ConsoleRecord->DosListHead, &DosRecord->Entry);
@ -423,7 +447,7 @@ CSR_API(BaseSrvGetVDMExitCode)
for (i = ConsoleRecord->DosListHead.Flink; i != &ConsoleRecord->DosListHead; i = i->Flink)
{
DosRecord = CONTAINING_RECORD(i, VDM_DOS_RECORD, Entry);
if (DosRecord->ParentProcess == GetVDMExitCodeRequest->hParent) break;
if (DosRecord->ClientEvent == GetVDMExitCodeRequest->hParent) break;
}
/* Check if no DOS record was found */

3
subsystems/win/basesrv/vdm.h
View file

@ -32,7 +32,8 @@ typedef struct _VDM_DOS_RECORD
LIST_ENTRY Entry;
USHORT State;
ULONG ExitCode;
HANDLE ParentProcess;
HANDLE ServerEvent;
HANDLE ClientEvent;
// TODO: Structure incomplete!!!
} VDM_DOS_RECORD, *PVDM_DOS_RECORD;