1 files changed, 175 insertions, 0 deletions
diff --git a/private/nw/rdr/filobsup.c b/private/nw/rdr/filobsup.c
new file mode 100644
index 000000000..64a5787ff
--- /dev/null
+++ b/private/nw/rdr/filobsup.c
@@ -0,0 +1,175 @@
+/*++
+
+Copyright (c) 1993  Microsoft Corporation
+
+Module Name:
+
+    filobsup.c
+
+Abstract:
+
+    This module implements the Netware Redirector object support routines.
+
+Author:
+
+    Manny Weiser (mannyw)    10-Feb-1993
+
+Revision History:
+
+--*/
+
+#include "procs.h"
+
+//
+// The debug trace level
+//
+
+#define Dbg                              (DEBUG_TRACE_FILOBSUP)
+
+#ifdef ALLOC_PRAGMA
+#pragma alloc_text( PAGE, NwSetFileObject )
+#pragma alloc_text( PAGE, NwDecodeFileObject )
+#endif
+
+
+VOID
+NwSetFileObject (
+    IN PFILE_OBJECT FileObject OPTIONAL,
+    IN PVOID FsContext,
+    IN PVOID FsContext2
+    )
+
+/*++
+
+Routine Description:
+
+    This routine sets the file system pointers within the file object.
+
+Arguments:
+
+    FileObject - Supplies a pointer to the file object being modified, and
+        can optionally be null.
+
+    FsContext - Supplies a pointer to either an icb, fcb, vcb, or dcb
+        structure.
+
+    FsContext2 - Supplies a pointer to a icb, or is null.
+
+Return Value:
+
+    None.
+
+--*/
+
+{
+    PAGED_CODE();
+
+    DebugTrace(+1, Dbg, "NwSetFileObject, FileObject = %08lx\n", (ULONG)FileObject );
+
+    //
+    // Set the fscontext fields of the file object.
+    //
+
+    FileObject->FsContext  = FsContext;
+    FileObject->FsContext2 = FsContext2;
+
+    DebugTrace(-1, Dbg, "NwSetFileObject -> VOID\n", 0);
+
+    return;
+}
+
+
+NODE_TYPE_CODE
+NwDecodeFileObject (
+    IN PFILE_OBJECT FileObject,
+    OUT PVOID *FsContext,
+    OUT PVOID *FsContext2
+    )
+
+/*++
+
+Routine Description:
+
+    This procedure takes a pointer to a file object, that has already been
+    opened by the mailslot file system and figures out what it really
+    is opened.
+
+Arguments:
+
+    FileObject - Supplies the file object pointer being interrogated
+
+    FsContext - Receives a pointer to the FsContext pointer
+    FsContext2 - Receives a pointer to the FsContext2 pointer
+
+Return Value:
+
+    NODE_TYPE_CODE - Returns the node type code for a Rcb, Scb, Dcb, Icb,
+        or zero.
+
+        Rcb - indicates that file object opens the netware redirector device.
+
+        Scb - indicates that file object is for a server.
+
+        Dcb - indicates that the file object is for a directory.
+
+        Icb - indicates that the file object is for a file.
+
+        Zero - indicates that the file object was for a netware file
+            but has been closed.
+
+--*/
+
+{
+    NODE_TYPE_CODE NodeTypeCode = NTC_UNDEFINED;
+
+    PAGED_CODE();
+
+    DebugTrace(+1, Dbg, "NwDecodeFileObject, FileObject = %08lx\n", (ULONG)FileObject);
+
+    //
+    // Read the fs FsContext fields of the file object.
+    //
+
+    *FsContext = FileObject->FsContext;
+    *FsContext2 = FileObject->FsContext2;
+
+    ASSERT ( *FsContext2 != NULL );
+    NodeTypeCode = NodeType( *FsContext2 );
+
+    DebugTrace(-1, Dbg, "NwDecodeFileObject -> %08lx\n", NodeTypeCode);
+    return NodeTypeCode;
+}
+
+BOOLEAN
+NwIsIrpTopLevel (
+    IN PIRP Irp
+    )
+/*++
+
+Routine Description:
+
+    This routine detects if an Irp is the Top level requestor, ie. if it is OK
+    to do a verify or pop-up now.  If TRUE is returned, then no file system
+    resources are held above us.
+
+Arguments:
+
+    Irp - Supplies the Irp being processed
+
+    Status - Supplies the status to complete the Irp with
+
+Return Value:
+
+    None.
+
+--*/
+
+{
+    if ( NwGetTopLevelIrp() == NULL ) {
+        NwSetTopLevelIrp( Irp );
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+