diff options
| author | Star Zeng <star.zeng@intel.com> | 2015-08-25 02:58:09 +0000 |
|---|---|---|
| committer | lzeng14 <lzeng14@Edk2> | 2015-08-25 02:58:09 +0000 |
| commit | 31b183bcf93bb80e40753e5b4f17dff7e3195703 (patch) | |
| tree | 00988a87c055c3506d57491aace18a2239a3a3e4 /MdeModulePkg/Include | |
| parent | 6bb832b36be205cbf4c5b8409e25ebf9bd79d14e (diff) | |
| download | edk2-platforms-31b183bcf93bb80e40753e5b4f17dff7e3195703.tar.xz | |
MdeModulePkg: Add VarCheckLib library
What to do:
1. Add VarCheckLib LibraryClass definitions.
2. Implement VarCheckLib library instance.
The code logic are separated from Variable driver.
Why to do: Share code.
Separate variable check service from Variable driver in MdeModulePkg.
We are going to separate generic software logic code from Variable Driver
to benefit other variable driver implementation. Auth services has been done
to be AuthVariableLib, now to cover variable check service.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18278 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Include')
| -rw-r--r-- | MdeModulePkg/Include/Library/VarCheckLib.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/MdeModulePkg/Include/Library/VarCheckLib.h b/MdeModulePkg/Include/Library/VarCheckLib.h new file mode 100644 index 0000000000..a423bc0e54 --- /dev/null +++ b/MdeModulePkg/Include/Library/VarCheckLib.h @@ -0,0 +1,180 @@ +/** @file
+ Provides variable check services and database management.
+
+Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that accompanies this distribution.
+The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _VARIABLE_CHECK_LIB_H_
+#define _VARIABLE_CHECK_LIB_H_
+
+#include <Protocol/VarCheck.h>
+
+typedef enum {
+ VarCheckRequestReserved0 = 0,
+ VarCheckRequestReserved1 = 1,
+ VarCheckFromTrusted = 2,
+ VarCheckFromUntrusted = 3,
+} VAR_CHECK_REQUEST_SOURCE;
+
+typedef
+VOID
+(EFIAPI *VAR_CHECK_END_OF_DXE_CALLBACK) (
+ VOID
+ );
+
+/**
+ Register END_OF_DXE callback.
+ The callback will be invoked by VarCheckLibInitializeAtEndOfDxe().
+
+ @param[in] Callback END_OF_DXE callback.
+
+ @retval EFI_SUCCESS The callback was registered successfully.
+ @retval EFI_INVALID_PARAMETER Callback is NULL.
+ @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
+ already been signaled.
+ @retval EFI_OUT_OF_RESOURCES There is not enough resource for the callback register request.
+
+**/
+EFI_STATUS
+EFIAPI
+VarCheckLibRegisterEndOfDxeCallback (
+ IN VAR_CHECK_END_OF_DXE_CALLBACK Callback
+ );
+
+/**
+ Var check initialize at END_OF_DXE.
+
+ This function needs to be called at END_OF_DXE.
+ Address pointers may be returned,
+ and caller needs to ConvertPointer() for the pointers.
+
+ @param[in, out] AddressPointerCount Output pointer to address pointer count.
+
+ @return Address pointer buffer, NULL if input AddressPointerCount is NULL.
+
+**/
+VOID ***
+EFIAPI
+VarCheckLibInitializeAtEndOfDxe (
+ IN OUT UINTN *AddressPointerCount OPTIONAL
+ );
+
+/**
+ Register address pointer.
+ The AddressPointer may be returned by VarCheckLibInitializeAtEndOfDxe().
+
+ @param[in] AddressPointer Address pointer.
+
+ @retval EFI_SUCCESS The address pointer was registered successfully.
+ @retval EFI_INVALID_PARAMETER AddressPointer is NULL.
+ @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
+ already been signaled.
+ @retval EFI_OUT_OF_RESOURCES There is not enough resource for the address pointer register request.
+
+**/
+EFI_STATUS
+EFIAPI
+VarCheckLibRegisterAddressPointer (
+ IN VOID **AddressPointer
+ );
+
+/**
+ Register SetVariable check handler.
+
+ @param[in] Handler Pointer to check handler.
+
+ @retval EFI_SUCCESS The SetVariable check handler was registered successfully.
+ @retval EFI_INVALID_PARAMETER Handler is NULL.
+ @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
+ already been signaled.
+ @retval EFI_OUT_OF_RESOURCES There is not enough resource for the SetVariable check handler register request.
+ @retval EFI_UNSUPPORTED This interface is not implemented.
+ For example, it is unsupported in VarCheck protocol if both VarCheck and SmmVarCheck protocols are present.
+
+**/
+EFI_STATUS
+EFIAPI
+VarCheckLibRegisterSetVariableCheckHandler (
+ IN VAR_CHECK_SET_VARIABLE_CHECK_HANDLER Handler
+ );
+
+/**
+ Variable property set.
+
+ @param[in] Name Pointer to the variable name.
+ @param[in] Guid Pointer to the vendor GUID.
+ @param[in] VariableProperty Pointer to the input variable property.
+
+ @retval EFI_SUCCESS The property of variable specified by the Name and Guid was set successfully.
+ @retval EFI_INVALID_PARAMETER Name, Guid or VariableProperty is NULL, or Name is an empty string,
+ or the fields of VariableProperty are not valid.
+ @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
+ already been signaled.
+ @retval EFI_OUT_OF_RESOURCES There is not enough resource for the variable property set request.
+
+**/
+EFI_STATUS
+EFIAPI
+VarCheckLibVariablePropertySet (
+ IN CHAR16 *Name,
+ IN EFI_GUID *Guid,
+ IN VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
+ );
+
+/**
+ Variable property get.
+
+ @param[in] Name Pointer to the variable name.
+ @param[in] Guid Pointer to the vendor GUID.
+ @param[out] VariableProperty Pointer to the output variable property.
+
+ @retval EFI_SUCCESS The property of variable specified by the Name and Guid was got successfully.
+ @retval EFI_INVALID_PARAMETER Name, Guid or VariableProperty is NULL, or Name is an empty string.
+ @retval EFI_NOT_FOUND The property of variable specified by the Name and Guid was not found.
+
+**/
+EFI_STATUS
+EFIAPI
+VarCheckLibVariablePropertyGet (
+ IN CHAR16 *Name,
+ IN EFI_GUID *Guid,
+ OUT VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
+ );
+
+/**
+ SetVariable check.
+
+ @param[in] VariableName Name of Variable to set.
+ @param[in] VendorGuid Variable vendor GUID.
+ @param[in] Attributes Attribute value of the variable.
+ @param[in] DataSize Size of Data to set.
+ @param[in] Data Data pointer.
+ @param[in] RequestSource Request source.
+
+ @retval EFI_SUCCESS The SetVariable check result was success.
+ @retval EFI_INVALID_PARAMETER An invalid combination of attribute bits, name, GUID,
+ DataSize and Data value was supplied.
+ @retval EFI_WRITE_PROTECTED The variable in question is read-only.
+ @retval Others The other return status from check handler.
+
+**/
+EFI_STATUS
+EFIAPI
+VarCheckLibSetVariableCheck (
+ IN CHAR16 *VariableName,
+ IN EFI_GUID *VendorGuid,
+ IN UINT32 Attributes,
+ IN UINTN DataSize,
+ IN VOID *Data,
+ IN VAR_CHECK_REQUEST_SOURCE RequestSource
+ );
+
+#endif
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