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diff --git a/private/inc/smbmacro.h b/private/inc/smbmacro.h
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+/*++
+
+Copyright (c) 1989  Microsoft Corporation
+
+Module Name:
+
+    smbmacro.h
+
+Abstract:
+
+    This module defines macros related to SMB processing.
+
+Author:
+
+    Chuck Lenzmeier (chuckl)   1-Dec-1989
+    David Treadwell (davidtr)
+
+Revision History:
+
+--*/
+
+#ifndef _SMBMACRO_
+#define _SMBMACRO_
+
+//#include <nt.h>
+
+
+//
+// PVOID
+// ALIGN_SMB_WSTR(
+//     IN PVOID Pointer
+//     )
+//
+// Routine description:
+//
+//     This macro aligns the input pointer to the next 2-byte boundary.
+//     Used to align Unicode strings in SMBs.
+//
+// Arguments:
+//
+//     Pointer - A pointer
+//
+// Return Value:
+//
+//     PVOID - Pointer aligned to next 2-byte boundary.
+//
+
+#define ALIGN_SMB_WSTR( Pointer ) \
+        (PVOID)( ((ULONG)Pointer + 1) & ~1 )
+
+//
+// Macro to find the size of an SMB parameter block.  This macro takes
+// as input the type of a parameter block and a byte count.  It finds
+// the offset of the Buffer field, which appears at the end of all
+// parameter blocks, and adds the byte count to find the total size.
+// The type of the returned offset is USHORT.
+//
+// Note that this macro does NOT pad to a word or longword boundary.
+//
+
+#define SIZEOF_SMB_PARAMS(type,byteCount)   \
+            (USHORT)( (CLONG)&((type *)0)->Buffer[0] + (byteCount) )
+
+//
+// Macro to find the next location after an SMB parameter block.  This
+// macro takes as input the address of the current parameter block, its
+// type, and a byte count.  It finds the address of the Buffer field,
+// which appears at the end of all parameter blocks, and adds the byte
+// count to find the next available location.  The type of the returned
+// pointer is PVOID.
+//
+// The byte count is passed in even though it is available through
+// base->ByteCount.  The reason for this is that this number will be a
+// compile-time constant in most cases, so the resulting code will be
+// simpler and faster.
+//
+// !!! This macro does not round to a longword boundary when packing
+//     is turned off.  Pre-LM 2.0 DOS redirectors cannot handle having
+//     too much data sent to them; the exact amount must be sent.
+//     We may want to make this macro such that the first location
+//     AFTER the returned value (WordCount field of the SMB) is aligned,
+//     since most of the fields are misaligned USHORTs.  This would
+//     result in a minor performance win on the 386 and other CISC
+//     machines.
+//
+
+#ifndef NO_PACKING
+
+#define NEXT_LOCATION(base,type,byteCount)  \
+        (PVOID)( (ULONG)( (PUCHAR)( &((type *)(base))->Buffer[0] ) ) + \
+        (byteCount) )
+
+#else
+
+#define NEXT_LOCATION(base,type,byteCount)  \
+        (PVOID)(( (ULONG)( (PUCHAR)( &((type *)(base))->Buffer[0] ) ) + \
+        (byteCount) + 3) & ~3)
+
+#endif
+
+//
+// Macro to find the offset of a followon command to an and X command.
+// This offset is the number of bytes from the start of the SMB header
+// to where the followon command's parameters should start.
+//
+
+#define GET_ANDX_OFFSET(header,params,type,byteCount) \
+        (USHORT)( (PCHAR)(params) - (PCHAR)(header) + \
+          SIZEOF_SMB_PARAMS( type,(byteCount) ) )
+
+//
+// The following are macros to assist in converting OS/2 1.2 EAs to
+// NT style and vice-versa.
+//
+
+//++
+//
+// ULONG
+// SmbGetNtSizeOfFea (
+//     IN PFEA Fea
+//     )
+//
+// Routine Description:
+//
+//     This macro gets the size that would be required to hold the FEA
+//     in NT format.  The length is padded to account for the fact that
+//     each FILE_FULL_EA_INFORMATION structure must start on a
+//     longword boundary.
+//
+// Arguments:
+//
+//     Fea - a pointer to the OS/2 1.2 FEA structure to evaluate.
+//
+// Return Value:
+//
+//     ULONG - number of bytes the FEA would require in NT format.
+//
+//--
+
+//
+// The +1 is for the zero terminator on the name, the +3 is for padding.
+//
+
+#define SmbGetNtSizeOfFea( Fea )                                            \
+            (ULONG)(( FIELD_OFFSET(FILE_FULL_EA_INFORMATION, EaName[0]) +   \
+                      (Fea)->cbName + 1 + SmbGetUshort( &(Fea)->cbValue ) + \
+                      3 ) & ~3 )
+
+//++
+//
+// ULONG
+// SmbGetNtSizeOfGea (
+//     IN PFEA Gea
+//     )
+//
+// Routine Description:
+//
+//     This macro gets the size that would be required to hold the GEA
+//     in NT format.  The length is padded to account for the fact that
+//     each FILE_FULL_EA_INFORMATION structure must start on a
+//     longword boundary.
+//
+// Arguments:
+//
+//     Gea - a pointer to the OS/2 1.2 GEA structure to evaluate.
+//
+// Return Value:
+//
+//     ULONG - number of bytes the GEA would require in NT format.
+//
+//--
+
+//
+// The +1 is for the zero terminator on the name, the +3 is for padding.
+//
+
+#define SmbGetNtSizeOfGea( Gea )                                            \
+            (ULONG)(( FIELD_OFFSET(FILE_FULL_EA_INFORMATION, EaName[0]) +   \
+                      (Gea)->cbName + 1 + 3 ) & ~3 )
+
+//++
+//
+// ULONG
+// SmbGetOs2SizeOfNtFullEa (
+//     IN PFILE_FULL_EA_INFORMATION NtFullEa;
+//     )
+//
+// Routine Description:
+//
+//     This macro gets the size a FILE_FULL_EA_INFORMATION structure would
+//     require to be represented in a OS/2 1.2 style FEA.
+//
+// Arguments:
+//
+//     NtFullEa - a pointer to the NT FILE_FULL_EA_INFORMATION structure
+//         to evaluate.
+//
+// Return Value:
+//
+//     ULONG - number of bytes requires for the FEA.
+//
+//--
+
+#define SmbGetOs2SizeOfNtFullEa( NtFullEa )                                        \
+            (ULONG)( sizeof(FEA) + (NtFullEa)->EaNameLength + 1 +               \
+                     (NtFullEa)->EaValueLength )
+
+//++
+//
+// ULONG
+// SmbGetOs2SizeOfNtGetEa (
+//     IN PFILE_GET_EA_INFORMATION NtGetEa;
+//     )
+//
+// Routine Description:
+//
+//     This macro gets the size a FILE_GET_EA_INFORMATION structure would
+//     require to be represented in a OS/2 1.2 style GEA.
+//
+// Arguments:
+//
+//     NtGetEa - a pointer to the NT FILE_GET_EA_INFORMATION structure
+//         to evaluate.
+//
+// Return Value:
+//
+//     ULONG - number of bytes requires for the GEA.
+//
+//--
+
+//
+// The zero terminator on the name is accounted for by the szName[0]
+// field in the GEA definition.
+//
+
+#define SmbGetOs2SizeOfNtGetEa( NtGetEa )                                        \
+            (ULONG)( sizeof(GEA) + (NtGetEa)->EaNameLength )
+
+#endif // def _SMBMACRO_
+