[PATCH] Nt32Pkg: Fix code to correctly set SMBIOS Type 2 Length

[Chris Phillips <chrisp@hpe.com>]

When running Nt32Pkg, SMBIOS Type 2 had the wrong Length.
Fixed the code to use the correct structure in sizeof, and properly account for ContainedObjectHandles.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chris Phillips <chrisp@hpe.com>
---
 .../MiscBaseBoardManufacturerFunction.c                  | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/Nt32Pkg/MiscSubClassPlatformDxe/MiscBaseBoardManufacturerFunction.c b/Nt32Pkg/MiscSubClassPlatformDxe/MiscBaseBoardManufacturerFunction.c
index 303726c3fd..26d5d11da6 100644
--- a/Nt32Pkg/MiscSubClassPlatformDxe/MiscBaseBoardManufacturerFunction.c
+++ b/Nt32Pkg/MiscSubClassPlatformDxe/MiscBaseBoardManufacturerFunction.c
@@ -3,6 +3,7 @@
   SMBIOS type 2.
   
 Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
+(C) Copyright 2017 Hewlett Packard Enterprise Development LP<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -101,11 +102,16 @@ MISC_SMBIOS_TABLE_FUNCTION(MiscBaseBoardManufacturer)
   //
   // Two zeros following the last string.
   //
-  SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE3) + ManuStrLen + 1 + ProductStrLen + 1 + VerStrLen + 1 + SerialNumStrLen + 1 + AssertTagStrLen + 1 + ChassisStrLen +1 + 1);
-  ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE3) + ManuStrLen + 1 + ProductStrLen + 1 + VerStrLen + 1 + SerialNumStrLen + 1 + AssertTagStrLen + 1 + ChassisStrLen +1 + 1);
+  // Since we fill NumberOfContainedObjectHandles = 0, remove sizeof (UINT16) bytes for ContainedObjectHandles[1]
+  //
+  SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE2) - sizeof (UINT16) + ManuStrLen + 1 + ProductStrLen + 1 + VerStrLen + 1 + SerialNumStrLen + 1 + AssertTagStrLen + 1 + ChassisStrLen + 1 + 1);
+  ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE2) - sizeof (UINT16) + ManuStrLen + 1 + ProductStrLen + 1 + VerStrLen + 1 + SerialNumStrLen + 1 + AssertTagStrLen + 1 + ChassisStrLen + 1 + 1);
 
   SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_BASEBOARD_INFORMATION;
-  SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE2);
+  //
+  // Since we fill NumberOfContainedObjectHandles = 0, remove sizeof (UINT16) bytes for ContainedObjectHandles[1]
+  //
+  SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE2) - sizeof (UINT16);
   //
   // Make handle chosen by smbios protocol.add automatically.
   //
@@ -142,9 +148,9 @@ MISC_SMBIOS_TABLE_FUNCTION(MiscBaseBoardManufacturer)
   
   OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1);
   //
-  // Since we fill NumberOfContainedObjectHandles = 0 for simple, just after this filed to fill string
+  // Since we fill NumberOfContainedObjectHandles = 0, just after this field to fill string
   //
-  OptionalStrStart -= 2;
+  OptionalStrStart -= sizeof (UINT16);
   UnicodeStrToAsciiStr(Manufacturer, OptionalStrStart);
   UnicodeStrToAsciiStr(Product, OptionalStrStart + ManuStrLen + 1);
   UnicodeStrToAsciiStr(Version, OptionalStrStart + ManuStrLen + 1 + ProductStrLen + 1);
-- 
2.11.0.windows.1