1 files changed, 122 insertions, 0 deletions

diff --git a/private/ntos/cntfs/views/initprop.c b/private/ntos/cntfs/views/initprop.c
new file mode 100644
index 000000000..c1ab2066a
--- /dev/null
+++ b/private/ntos/cntfs/views/initprop.c
@@ -0,0 +1,122 @@
+/*++
+
+Copyright (c) 1989-1997  Microsoft Corporation
+
+Module Name:
+
+    initprop.h
+
+Abstract:
+
+    This module contains the initialization user FsCtls for the Ntfs Property
+    support.
+
+
+--*/
+
+#include <viewprop.h>       //  needs propset.h and ntfsprop.h
+
+#define Dbg DEBUG_TRACE_PROP_FSCTL
+
+
+VOID
+InitializePropertyData (
+    IN PPROPERTY_CONTEXT Context
+    )
+
+/*++
+
+Routine Description:
+
+    This routine initializes a blank stream for property access.
+
+    We set up the initial size, lay out an empty table and empty header.
+
+
+Arguments:
+
+    Context - Property Context for the call
+
+Return Value:
+
+    Nothing
+
+--*/
+{
+    PROPERTY_SET_HEADER PropertySetHeader;
+    PROPERTY_ID_TABLE IdTable;
+    PROPERTY_HEAP_HEADER HeapHeader;
+
+    //
+    //  Set up header
+    //
+
+    PropertySetHeader.wByteOrder = 0xFFFE;
+    PropertySetHeader.wFormat = PSH_FORMAT_VERSION;
+    PropertySetHeader.dwOSVer = PSH_DWOSVER;
+    RtlZeroMemory( &PropertySetHeader.clsid, sizeof( CLSID ));
+    PropertySetHeader.reserved = 2; // BUGBUG ???
+    PropertySetHeader.IdTableOffset = LongAlign( sizeof( PROPERTY_SET_HEADER ));
+    PropertySetHeader.ValueHeapOffset = PropertySetHeader.IdTableOffset;
+
+    //
+    //  Set up Id table
+    //
+
+    IdTable.PropertyCount = 0;
+    IdTable.MaximumPropertyCount = PIT_PROPERTY_DELTA;
+    PropertySetHeader.ValueHeapOffset +=
+        LongAlign( PROPERTY_ID_TABLE_SIZE( PIT_PROPERTY_DELTA ));
+
+    //
+    //  Set up Heap header
+    //
+
+    HeapHeader.PropertyHeapLength = PHH_INITIAL_SIZE;
+    HeapHeader.PropertyHeapEntry[0].PropertyValueLength = PHH_INITIAL_SIZE - PROPERTY_HEAP_HEADER_SIZE;
+    HeapHeader.PropertyHeapEntry[0].PropertyId = PID_ILLEGAL;
+    HeapHeader.PropertyHeapEntry[0].PropertyNameLength = 0;
+
+    //
+    //  Set the new size of the stream
+    //
+
+    NtOfsSetLength( Context->IrpContext, Context->Attribute,
+                    PropertySetHeader.ValueHeapOffset + PHH_INITIAL_SIZE );
+
+
+    //
+    //  Write out the header
+    //
+
+    LogFileFullFailCheck( Context->IrpContext );
+    NtOfsPutData( Context->IrpContext,
+                  Context->Attribute,
+                  0,
+                  sizeof( PROPERTY_SET_HEADER ),
+                  &PropertySetHeader );
+
+
+    //
+    //  Write out the table
+    //
+
+    LogFileFullFailCheck( Context->IrpContext );
+    NtOfsPutData( Context->IrpContext,
+                  Context->Attribute,
+                  PropertySetHeader.IdTableOffset,
+                  sizeof( PROPERTY_ID_TABLE ),
+                  &IdTable );
+
+    //
+    //  Write out the heap and set the stream size
+    //
+
+    LogFileFullFailCheck( Context->IrpContext );
+    NtOfsPutData( Context->IrpContext,
+                  Context->Attribute,
+                  PropertySetHeader.ValueHeapOffset,
+                  sizeof( PROPERTY_HEAP_HEADER ),
+                  &HeapHeader );
+}
+