diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/AuthVariableLibNull/AuthVariableLibNull.c')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/AuthVariableLibNull/AuthVariableLibNull.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/AuthVariableLibNull/AuthVariableLibNull.c b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/AuthVariableLibNull/AuthVariableLibNull.c new file mode 100644 index 00000000..3a064683 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/AuthVariableLibNull/AuthVariableLibNull.c @@ -0,0 +1,71 @@ +/** @file + Implements NULL authenticated variable services. + +Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR> +SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include <Library/AuthVariableLib.h> +#include <Library/DebugLib.h> + +/** + Initialization for authenticated varibale services. + If this initialization returns error status, other APIs will not work + and expect to be not called then. + + @param[in] AuthVarLibContextIn Pointer to input auth variable lib context. + @param[out] AuthVarLibContextOut Pointer to output auth variable lib context. + + @retval EFI_SUCCESS Function successfully executed. + @retval EFI_INVALID_PARAMETER If AuthVarLibContextIn == NULL or AuthVarLibContextOut == NULL. + @retval EFI_OUT_OF_RESOURCES Fail to allocate enough resource. + @retval EFI_UNSUPPORTED Unsupported to process authenticated variable. + +**/ +EFI_STATUS +EFIAPI +AuthVariableLibInitialize ( + IN AUTH_VAR_LIB_CONTEXT_IN *AuthVarLibContextIn, + OUT AUTH_VAR_LIB_CONTEXT_OUT *AuthVarLibContextOut + ) +{ + // + // Do nothing, just return EFI_UNSUPPORTED. + // + return EFI_UNSUPPORTED; +} + +/** + Process variable with EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS set. + + @param[in] VariableName Name of the variable. + @param[in] VendorGuid Variable vendor GUID. + @param[in] Data Data pointer. + @param[in] DataSize Size of Data. + @param[in] Attributes Attribute value of the variable. + + @retval EFI_SUCCESS The firmware has successfully stored the variable and its data as + defined by the Attributes. + @retval EFI_INVALID_PARAMETER Invalid parameter. + @retval EFI_WRITE_PROTECTED Variable is write-protected. + @retval EFI_OUT_OF_RESOURCES There is not enough resource. + @retval EFI_SECURITY_VIOLATION The variable is with EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACESS + set, but the AuthInfo does NOT pass the validation + check carried out by the firmware. + @retval EFI_UNSUPPORTED Unsupported to process authenticated variable. + +**/ +EFI_STATUS +EFIAPI +AuthVariableLibProcessVariable ( + IN CHAR16 *VariableName, + IN EFI_GUID *VendorGuid, + IN VOID *Data, + IN UINTN DataSize, + IN UINT32 Attributes + ) +{ + ASSERT (FALSE); + return EFI_UNSUPPORTED; +} |