SecurityPkg: Implement AuthVariableLib library instance

What to do:
1. Implement AuthVariableLib library instance.
2. Temporarily add VARIABLE_ENTRY_CONSISTENCY and
variable attribute combinations definitions to
AuthenticatedVariableFormat.h for git bisect.

Why to do:
1. Share code.
Separate auth variable service from Auth Variable driver in
SecurityPkg to AuthVariableLib. Then the AuthVariableLib could benefit
and be used by different implementation of Auth Variable drivers.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17758 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 17 insertions, 0 deletions

diff --git a/SecurityPkg/Include/Guid/AuthenticatedVariableFormat.h b/SecurityPkg/Include/Guid/AuthenticatedVariableFormat.h
index 66947e1765..c7cd34a943 100644
--- a/SecurityPkg/Include/Guid/AuthenticatedVariableFormat.h
+++ b/SecurityPkg/Include/Guid/AuthenticatedVariableFormat.h
@@ -147,6 +147,17 @@ typedef struct {
 #define VAR_ADDED                     0x3f  ///< Variable has been completely added.

 

 ///

+/// Variable Attribute combinations.

+///

+#define VARIABLE_ATTRIBUTE_NV_BS        (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS)

+#define VARIABLE_ATTRIBUTE_BS_RT        (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS)

+#define VARIABLE_ATTRIBUTE_AT_AW        (EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)

+#define VARIABLE_ATTRIBUTE_NV_BS_RT     (VARIABLE_ATTRIBUTE_BS_RT | EFI_VARIABLE_NON_VOLATILE)

+#define VARIABLE_ATTRIBUTE_NV_BS_RT_HR  (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_HARDWARE_ERROR_RECORD)

+#define VARIABLE_ATTRIBUTE_NV_BS_RT_AT  (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)

+#define VARIABLE_ATTRIBUTE_NV_BS_RT_AW  (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)

+#define VARIABLE_ATTRIBUTE_NV_BS_RT_HR_AT_AW    (VARIABLE_ATTRIBUTE_NV_BS_RT_HR | VARIABLE_ATTRIBUTE_AT_AW)

+

 /// Single Variable Data Header Structure.

 ///

 typedef struct {

@@ -189,6 +200,12 @@ typedef struct {
   EFI_GUID    VendorGuid;

 } VARIABLE_HEADER;

 

+typedef struct {

+  EFI_GUID    *Guid;

+  CHAR16      *Name;

+  UINTN       VariableSize;

+} VARIABLE_ENTRY_CONSISTENCY;

+

 #pragma pack()

 

 typedef struct _VARIABLE_INFO_ENTRY  VARIABLE_INFO_ENTRY;