--- /dev/null
+/** @file\r
+ TCG MOR (Memory Overwrite Request) Lock Control Driver SMM wrapper.\r
+ \r
+Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials \r
+are licensed and made available under the terms and conditions of the BSD License \r
+which accompanies this distribution. The full text of the license may be found at \r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include <PiSmm.h>\r
+#include <Library/SmmServicesTableLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Protocol/SmmVarCheck.h>\r
+#include <Protocol/SmmVariable.h>\r
+#include "TcgMorLock.h"\r
+\r
+EFI_SMM_VARIABLE_PROTOCOL *mSmmVariable;\r
+\r
+/**\r
+ This service is a wrapper for the UEFI Runtime Service GetVariable().\r
+\r
+ @param VariableName the name of the vendor's variable, it's a Null-Terminated Unicode String\r
+ @param VendorGuid Unify identifier for vendor.\r
+ @param Attributes Point to memory location to return the attributes of variable. If the point\r
+ is NULL, the parameter would be ignored.\r
+ @param DataSize As input, point to the maximum size of return Data-Buffer.\r
+ As output, point to the actual size of the returned Data-Buffer.\r
+ @param Data Point to return Data-Buffer.\r
+\r
+ @retval EFI_SUCCESS The function completed successfully.\r
+ @retval EFI_NOT_FOUND The variable was not found.\r
+ @retval EFI_BUFFER_TOO_SMALL The DataSize is too small for the result. DataSize has\r
+ been updated with the size needed to complete the request.\r
+ @retval EFI_INVALID_PARAMETER VariableName is NULL.\r
+ @retval EFI_INVALID_PARAMETER VendorGuid is NULL.\r
+ @retval EFI_INVALID_PARAMETER DataSize is NULL.\r
+ @retval EFI_INVALID_PARAMETER The DataSize is not too small and Data is NULL.\r
+ @retval EFI_DEVICE_ERROR The variable could not be retrieved due to a hardware error.\r
+ @retval EFI_SECURITY_VIOLATION The variable could not be retrieved due to an authentication failure.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+InternalGetVariable (\r
+ IN CHAR16 *VariableName,\r
+ IN EFI_GUID *VendorGuid,\r
+ OUT UINT32 *Attributes OPTIONAL,\r
+ IN OUT UINTN *DataSize,\r
+ OUT VOID *Data\r
+ )\r
+{\r
+ return mSmmVariable->SmmGetVariable (\r
+ VariableName,\r
+ VendorGuid,\r
+ Attributes,\r
+ DataSize,\r
+ Data\r
+ );\r
+}\r
+\r
+/**\r
+ This service is a wrapper for the UEFI Runtime Service SetVariable()\r
+\r
+ @param VariableName the name of the vendor's variable, as a\r
+ Null-Terminated Unicode String\r
+ @param VendorGuid Unify identifier for vendor.\r
+ @param Attributes Point to memory location to return the attributes of variable. If the point\r
+ is NULL, the parameter would be ignored.\r
+ @param DataSize The size in bytes of Data-Buffer.\r
+ @param Data Point to the content of the variable.\r
+\r
+ @retval EFI_SUCCESS The firmware has successfully stored the variable and its data as\r
+ defined by the Attributes.\r
+ @retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied, or the\r
+ DataSize exceeds the maximum allowed.\r
+ @retval EFI_INVALID_PARAMETER VariableName is an empty Unicode string.\r
+ @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.\r
+ @retval EFI_DEVICE_ERROR The variable could not be saved due to a hardware failure.\r
+ @retval EFI_WRITE_PROTECTED The variable in question is read-only.\r
+ @retval EFI_WRITE_PROTECTED The variable in question cannot be deleted.\r
+ @retval EFI_SECURITY_VIOLATION The variable could not be written due to EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS\r
+ set but the AuthInfo does NOT pass the validation check carried\r
+ out by the firmware.\r
+ @retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+InternalSetVariable (\r
+ IN CHAR16 *VariableName,\r
+ IN EFI_GUID *VendorGuid,\r
+ IN UINT32 Attributes,\r
+ IN UINTN DataSize,\r
+ IN VOID *Data\r
+ )\r
+{\r
+ return mSmmVariable->SmmSetVariable (\r
+ VariableName,\r
+ VendorGuid,\r
+ Attributes,\r
+ DataSize,\r
+ Data\r
+ );\r
+}\r
+\r
+/**\r
+ Entry Point for MOR Lock Control driver.\r
+\r
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.\r
+ @param[in] SystemTable A pointer to the EFI System Table.\r
+\r
+ @retval EFI_SUCCESS EntryPoint runs successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+MorLockDriverEntryPointSmm (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EDKII_SMM_VAR_CHECK_PROTOCOL *SmmVarCheck;\r
+\r
+ //\r
+ // This driver link to Smm Variable driver\r
+ //\r
+ DEBUG ((EFI_D_INFO, "MorLockDriverEntryPointSmm\n"));\r
+ \r
+ Status = gSmst->SmmLocateProtocol (\r
+ &gEfiSmmVariableProtocolGuid,\r
+ NULL,\r
+ (VOID **) &mSmmVariable\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ Status = gSmst->SmmLocateProtocol (\r
+ &gEdkiiSmmVarCheckProtocolGuid,\r
+ NULL,\r
+ (VOID **) &SmmVarCheck\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ Status = MorLockDriverInit ();\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = SmmVarCheck->SmmRegisterSetVariableCheckHandler (SetVariableCheckHandlerMor);\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ return Status;\r
+}\r
+\r
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