REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2594
V4: Applied code review - Remove empty Guids section
from .inf file. Update description in *.c. Remove *.uni file
and reference to it.
V1: Provide null ecryption variable libraries.
These will be used by default for platforms that don't
support protected variable encryption.
Cc: Jian J Wang <jian.j.w...@intel.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Nishant C Mistry <nishant.c.mis...@intel.com>
Signed-off-by: Jian J Wang <jian.j.w...@intel.com>
Signed-off-by: Nishant C Mistry <nishant.c.mis...@intel.com>
Signed-off-by: Judah Vang <judah.v...@intel.com>
---
SecurityPkg/Library/EncryptionVariableLibNull/EncryptionVariableLibNull.inf |
34 ++++++++
SecurityPkg/Library/EncryptionVariableLibNull/EncryptionVariable.c |
92 ++++++++++++++++++++
2 files changed, 126 insertions(+)
diff --git
a/SecurityPkg/Library/EncryptionVariableLibNull/EncryptionVariableLibNull.inf
b/SecurityPkg/Library/EncryptionVariableLibNull/EncryptionVariableLibNull.inf
new file mode 100644
index 000000000000..185b6f9bedf7
--- /dev/null
+++
b/SecurityPkg/Library/EncryptionVariableLibNull/EncryptionVariableLibNull.inf
@@ -0,0 +1,34 @@
+## @file
+# Provides NULL version of encryption variable services.
+#
+# Copyright (c) 2015 - 2022, Intel Corporation. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = EncryptionVariableLibNull
+ FILE_GUID = 3972E6FE-74D5-45C3-A9FB-DB9E5E5C9C17
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = EncryptionVariableLib
+
+#
+# The following information is for reference only and not required by the
build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ EncryptionVariable.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ SecurityPkg/SecurityPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ DebugLib
diff --git a/SecurityPkg/Library/EncryptionVariableLibNull/EncryptionVariable.c
b/SecurityPkg/Library/EncryptionVariableLibNull/EncryptionVariable.c
new file mode 100644
index 000000000000..52ee8a7b5aae
--- /dev/null
+++ b/SecurityPkg/Library/EncryptionVariableLibNull/EncryptionVariable.c
@@ -0,0 +1,92 @@
+/** @file
+ NULL implementation of EncryptionVariableLib.
+
+Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Uefi.h>
+
+#include <Library/EncryptionVariableLib.h>
+#include <Library/DebugLib.h>
+
+/**
+ Encrypt variable data.
+
+ Null version.
+
+ @param[in, out] VarEncInfo Pointer to structure containing detailed
+ information about a variable.
+
+ @retval EFI_UNSUPPORTED Unsupported to encrypt variable.
+
+**/
+EFI_STATUS
+EFIAPI
+EncryptVariable (
+ IN OUT VARIABLE_ENCRYPTION_INFO *VarEncInfo
+ )
+{
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Decrypt variable data.
+
+ Null version.
+
+ @param[in, out] VarEncInfo Pointer to structure containing detailed
+ information about a variable.
+
+ @retval EFI_UNSUPPORTED Unsupported to encrypt variable.
+
+**/
+EFI_STATUS
+EFIAPI
+DecryptVariable (
+ IN OUT VARIABLE_ENCRYPTION_INFO *VarEncInfo
+ )
+{
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Get cipher information.
+
+ Null version.
+
+ @param[in] VarEncInfo Pointer to structure containing detailed
+ information about a variable.
+
+ @retval EFI_UNSUPPORTED Unsupported interface.
+
+**/
+EFI_STATUS
+EFIAPI
+GetCipherDataInfo (
+ IN VARIABLE_ENCRYPTION_INFO *VarEncInfo
+ )
+{
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Set cipher information for a variable.
+
+ Null version.
+
+ @param[in] VarEncInfo Pointer to structure containing detailed
+ information about a variable.
+
+ @retval EFI_UNSUPPORTED If this method is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+SetCipherDataInfo (
+ IN VARIABLE_ENCRYPTION_INFO *VarEncInfo
+ )
+{
+ return EFI_UNSUPPORTED;
+}
--
2.35.1.windows.2
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