ntoskrnl.exe: Implement PsLookupProcessByProcessId.

dlls/ntoskrnl.exe/ntoskrnl.c

@@ -2482,6 +2482,25 @@ PEPROCESS WINAPI IoGetCurrentProcess(void)
     return NULL;
 }
 
+/***********************************************************************
+ *           PsLookupProcessByProcessId  (NTOSKRNL.EXE.@)
+ */
+NTSTATUS WINAPI PsLookupProcessByProcessId( HANDLE processid, PEPROCESS *process )
+{
+    NTSTATUS status;
+    HANDLE handle;
+
+    TRACE( "(%p %p)\n", processid, process );
+
+    if (!(handle = OpenProcess( PROCESS_ALL_ACCESS, FALSE, HandleToUlong(processid) )))
+        return STATUS_INVALID_PARAMETER;
+
+    status = ObReferenceObjectByHandle( handle, PROCESS_ALL_ACCESS, PsProcessType, KernelMode, (void**)process, NULL );
+
+    NtClose( handle );
+    return status;
+}
+
 
 static void *create_thread_object( HANDLE handle )
 {
@@ -3255,17 +3274,6 @@ NTSTATUS WINAPI PsSetLoadImageNotifyRoutine(PLOAD_IMAGE_NOTIFY_ROUTINE routine)
 }
 
 /*****************************************************
- *           PsLookupProcessByProcessId  (NTOSKRNL.EXE.@)
- */
-NTSTATUS WINAPI PsLookupProcessByProcessId(HANDLE processid, PEPROCESS *process)
-{
-    static int once;
-    if (!once++) FIXME("(%p %p) stub\n", processid, process);
-    return STATUS_NOT_IMPLEMENTED;
-}
-
-
-/*****************************************************
  *           IoSetThreadHardErrorMode  (NTOSKRNL.EXE.@)
  */
 BOOLEAN WINAPI IoSetThreadHardErrorMode(BOOLEAN EnableHardErrors)

include/ddk/ntifs.h

@@ -131,6 +131,7 @@ typedef struct _FS_FILTER_CALLBACKS
 
 BOOLEAN WINAPI FsRtlIsNameInExpression(PUNICODE_STRING, PUNICODE_STRING, BOOLEAN, PWCH);
 NTSTATUS WINAPI ObQueryNameString(PVOID,POBJECT_NAME_INFORMATION,ULONG,PULONG);
+NTSTATUS WINAPI PsLookupProcessByProcessId(HANDLE,PEPROCESS*);
 NTSTATUS WINAPI PsLookupThreadByThreadId(HANDLE,PETHREAD*);
 void WINAPI PsRevertToSelf(void);