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Implement duplication of NtCurrentThread() pseudo-handle

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svn path=/trunk/; revision=4549
This commit is contained in:
Gé van Geldorp 2003-04-18 09:37:01 +00:00
parent 63401fccd2
commit 296d8bc63f
1 changed files with 50 additions and 30 deletions
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80
reactos/ntoskrnl/ob/handle.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: handle.c,v 1.43 2003/03/17 22:28:55 gdalsnes Exp $
/* $Id: handle.c,v 1.44 2003/04/18 09:37:01 gvg Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -217,40 +217,60 @@ NtDuplicateObject (IN HANDLE SourceProcessHandle,
ObDereferenceObject(SourceProcess);
return(Status);
}
KeAcquireSpinLock(&SourceProcess->HandleTable.ListLock, &oldIrql);
SourceHandleRep = ObpGetObjectByHandle(&SourceProcess->HandleTable,
SourceHandle);
if (SourceHandleRep == NULL)
/* Check for magic handle first */
if (SourceHandle == NtCurrentThread())
{
KeReleaseSpinLock(&SourceProcess->HandleTable.ListLock, oldIrql);
ObDereferenceObject(SourceProcess);
ObDereferenceObject(TargetProcess);
return(STATUS_INVALID_HANDLE);
ObReferenceObjectByHandle(SourceHandle,
PROCESS_DUP_HANDLE,
NULL,
UserMode,
&ObjectBody,
NULL);
ObCreateHandle(TargetProcess,
ObjectBody,
THREAD_ALL_ACCESS,
InheritHandle,
&TargetHandle);
}
ObjectBody = SourceHandleRep->ObjectBody;
ObReferenceObjectByPointer(ObjectBody,
0,
NULL,
UserMode);
else
{
KeAcquireSpinLock(&SourceProcess->HandleTable.ListLock, &oldIrql);
SourceHandleRep = ObpGetObjectByHandle(&SourceProcess->HandleTable,
SourceHandle);
if (SourceHandleRep == NULL)
{
KeReleaseSpinLock(&SourceProcess->HandleTable.ListLock, oldIrql);
ObDereferenceObject(SourceProcess);
ObDereferenceObject(TargetProcess);
return(STATUS_INVALID_HANDLE);
}
ObjectBody = SourceHandleRep->ObjectBody;
ObReferenceObjectByPointer(ObjectBody,
0,
NULL,
UserMode);
if (Options & DUPLICATE_SAME_ACCESS)
{
DesiredAccess = SourceHandleRep->GrantedAccess;
}
if (Options & DUPLICATE_SAME_ACCESS)
{
DesiredAccess = SourceHandleRep->GrantedAccess;
}
KeReleaseSpinLock(&SourceProcess->HandleTable.ListLock, oldIrql);
if (!SourceHandleRep->Inherit)
{
ObDereferenceObject(TargetProcess);
ObDereferenceObject(SourceProcess);
ObDereferenceObject(ObjectBody);
return STATUS_INVALID_HANDLE;
KeReleaseSpinLock(&SourceProcess->HandleTable.ListLock, oldIrql);
if (!SourceHandleRep->Inherit)
{
ObDereferenceObject(TargetProcess);
ObDereferenceObject(SourceProcess);
ObDereferenceObject(ObjectBody);
return STATUS_INVALID_HANDLE;
}
ObCreateHandle(TargetProcess,
ObjectBody,
DesiredAccess,
InheritHandle,
&TargetHandle);
}
ObCreateHandle(TargetProcess,
ObjectBody,
DesiredAccess,
InheritHandle,
&TargetHandle);
if (Options & DUPLICATE_CLOSE_SOURCE)
{