Derek Lesho : ntoskrnl.exe: Implement ObOpenObjectByName.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 65df36c1151306db5a8fb86623b74c49d33a3649
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=65df36c1151306db5a8fb86623b74c49d33a3649

Author: Derek Lesho <dlesho at codeweavers.com>
Date:   Thu Jul 16 10:17:08 2020 -0500

ntoskrnl.exe: Implement ObOpenObjectByName.

Signed-off-by: Derek Lesho <dlesho at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/ntoskrnl.exe/ntoskrnl.c        | 32 ++++++++++++++++++++++++++++++++
 dlls/ntoskrnl.exe/ntoskrnl.exe.spec |  2 +-
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index fa85979d0b..e94feabc82 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -2806,6 +2806,38 @@ NTSTATUS WINAPI ObReferenceObjectByName( UNICODE_STRING *ObjectName,
 }
 
 
+/********************************************************************
+ *           ObOpenObjectByName   (NTOSKRNL.EXE.@)
+ */
+NTSTATUS WINAPI ObOpenObjectByName(POBJECT_ATTRIBUTES attr, POBJECT_TYPE type,
+                                   KPROCESSOR_MODE mode, ACCESS_STATE *access_state,
+                                   ACCESS_MASK access, PVOID ctx, HANDLE *handle)
+{
+    NTSTATUS status;
+    void *object;
+
+    TRACE( "attr(%p %s %x) %p %u %p %u %p %p\n", attr->RootDirectory, debugstr_us(attr->ObjectName),
+                                                 attr->Attributes, type, mode, access_state, access, ctx, handle );
+
+    if (mode != KernelMode)
+    {
+        FIXME( "UserMode access not implemented\n" );
+        return STATUS_NOT_IMPLEMENTED;
+    }
+
+    if (attr->RootDirectory) FIXME( "RootDirectory unhandled\n" );
+
+    status = ObReferenceObjectByName(attr->ObjectName, attr->Attributes, access_state, access, type, mode, ctx, &object );
+    if (status != STATUS_SUCCESS)
+        return status;
+
+    status = ObOpenObjectByPointer(object, attr->Attributes, access_state, access, type, mode, handle);
+
+    ObDereferenceObject(object);
+    return status;
+}
+
+
 /***********************************************************************
  *           ObReferenceObjectByPointer   (NTOSKRNL.EXE.@)
  */
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
index 0f65490b48..030bdbcedf 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
@@ -835,7 +835,7 @@
 @ stub ObInsertObject
 @ stub ObLogSecurityDescriptor
 @ stub ObMakeTemporaryObject
-@ stub ObOpenObjectByName
+@ stdcall ObOpenObjectByName(ptr ptr long ptr long ptr ptr)
 @ stdcall ObOpenObjectByPointer(ptr long ptr long ptr long ptr)
 @ stdcall ObQueryNameString(ptr ptr long ptr)
 @ stub ObQueryObjectAuditingByHandle