mirror of https://github.com/acidanthera/audk.git
72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
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/** @file -- VariableLockRequestToLock.c
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Temporary location of the RequestToLock shim code while
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projects are moved to VariablePolicy. Should be removed when deprecated.
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Copyright (c) Microsoft Corporation.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Uefi.h>
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#include <Library/DebugLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Protocol/VariableLock.h>
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#include <Protocol/VariablePolicy.h>
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#include <Library/VariablePolicyLib.h>
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#include <Library/VariablePolicyHelperLib.h>
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/**
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DEPRECATED. THIS IS ONLY HERE AS A CONVENIENCE WHILE PORTING.
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Mark a variable that will become read-only after leaving the DXE phase of execution.
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Write request coming from SMM environment through EFI_SMM_VARIABLE_PROTOCOL is allowed.
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@param[in] This The VARIABLE_LOCK_PROTOCOL instance.
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@param[in] VariableName A pointer to the variable name that will be made read-only subsequently.
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@param[in] VendorGuid A pointer to the vendor GUID that will be made read-only subsequently.
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@retval EFI_SUCCESS The variable specified by the VariableName and the VendorGuid was marked
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as pending to be read-only.
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@retval EFI_INVALID_PARAMETER VariableName or VendorGuid is NULL.
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Or VariableName is an empty string.
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@retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has
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already been signaled.
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@retval EFI_OUT_OF_RESOURCES There is not enough resource to hold the lock request.
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**/
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EFI_STATUS
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EFIAPI
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VariableLockRequestToLock (
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IN CONST EDKII_VARIABLE_LOCK_PROTOCOL *This,
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IN CHAR16 *VariableName,
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IN EFI_GUID *VendorGuid
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)
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{
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EFI_STATUS Status;
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VARIABLE_POLICY_ENTRY *NewPolicy;
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NewPolicy = NULL;
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Status = CreateBasicVariablePolicy( VendorGuid,
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VariableName,
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VARIABLE_POLICY_NO_MIN_SIZE,
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VARIABLE_POLICY_NO_MAX_SIZE,
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VARIABLE_POLICY_NO_MUST_ATTR,
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VARIABLE_POLICY_NO_CANT_ATTR,
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VARIABLE_POLICY_TYPE_LOCK_NOW,
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&NewPolicy );
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if (!EFI_ERROR( Status )) {
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Status = RegisterVariablePolicy( NewPolicy );
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}
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if (EFI_ERROR( Status )) {
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DEBUG(( DEBUG_ERROR, "%a - Failed to lock variable %s! %r\n", __FUNCTION__, VariableName, Status ));
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ASSERT_EFI_ERROR( Status );
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}
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if (NewPolicy != NULL) {
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FreePool( NewPolicy );
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}
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return Status;
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}
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