0c18794ea4
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12261 6f19259b-4bc3-4df7-8a09-765794883524
210 lines
8.5 KiB
C
210 lines
8.5 KiB
C
/** @file
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The internal header file includes the common header files, defines
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internal structure and functions used by AuthService module.
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Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _AUTHSERVICE_H_
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#define _AUTHSERVICE_H_
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#define EFI_CERT_TYPE_RSA2048_SHA256_SIZE 256
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#define EFI_CERT_TYPE_RSA2048_SIZE 256
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///
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/// Size of AuthInfo prior to the data payload
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///
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#define AUTHINFO_SIZE (((UINTN)(((EFI_VARIABLE_AUTHENTICATION *) 0)->AuthInfo.CertData)) + sizeof (EFI_CERT_BLOCK_RSA_2048_SHA256))
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///
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/// "AuthVarKeyDatabase" variable for the Public Key store.
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///
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#define AUTHVAR_KEYDB_NAME L"AuthVarKeyDatabase"
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#define AUTHVAR_KEYDB_NAME_SIZE 38
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///
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/// Max size of public key database, restricted by max individal EFI varible size, exclude variable header and name size.
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///
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#define MAX_KEYDB_SIZE (FixedPcdGet32 (PcdMaxVariableSize) - sizeof (VARIABLE_HEADER) - AUTHVAR_KEYDB_NAME_SIZE)
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#define MAX_KEY_NUM (MAX_KEYDB_SIZE / EFI_CERT_TYPE_RSA2048_SIZE)
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///
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/// Item number of support signature types.
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///
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#define SIGSUPPORT_NUM 2
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/**
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Process variable with EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS/EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS set.
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@param[in] VariableName Name of Variable to be found.
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@param[in] VendorGuid Variable vendor GUID.
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@param[in] Data Data pointer.
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@param[in] DataSize Size of Data found. If size is less than the
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data, this value contains the required size.
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@param[in] Variable The variable information which is used to keep track of variable usage.
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@param[in] Attributes Attribute value of the variable.
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@return EFI_INVALID_PARAMETER Invalid parameter
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@return EFI_WRITE_PROTECTED Variable is write-protected and needs authentication with
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EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS set.
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@return EFI_SECURITY_VIOLATION The variable is with EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS
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set, but the AuthInfo does NOT pass the validation
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check carried out by the firmware.
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@return EFI_SUCCESS Variable is not write-protected, or passed validation successfully.
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**/
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EFI_STATUS
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ProcessVariable (
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IN CHAR16 *VariableName,
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IN EFI_GUID *VendorGuid,
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IN VOID *Data,
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IN UINTN DataSize,
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IN VARIABLE_POINTER_TRACK *Variable,
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IN UINT32 Attributes
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);
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/**
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Initializes for authenticated varibale service.
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@retval EFI_SUCCESS Function successfully executed.
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@retval EFI_OUT_OF_RESOURCES Fail to allocate enough memory resource.
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**/
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EFI_STATUS
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AutenticatedVariableServiceInitialize (
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VOID
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);
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/**
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Initializes for cryptlib service before use, include register algrithm and allocate scratch.
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**/
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VOID
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CryptLibraryInitialize (
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VOID
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);
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/**
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Process variable with platform key for verification.
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@param[in] VariableName Name of Variable to be found.
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@param[in] VendorGuid Variable vendor GUID.
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@param[in] Data Data pointer.
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@param[in] DataSize Size of Data found. If size is less than the
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data, this value contains the required size.
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@param[in] Variable The variable information which is used to keep track of variable usage.
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@param[in] Attributes Attribute value of the variable.
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@param[in] IsPk Indicate whether it is to process pk.
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@return EFI_INVALID_PARAMETER Invalid parameter
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@return EFI_SECURITY_VIOLATION The variable does NOT pass the validation
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check carried out by the firmware.
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@return EFI_SUCCESS Variable passed validation successfully.
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**/
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EFI_STATUS
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ProcessVarWithPk (
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IN CHAR16 *VariableName,
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IN EFI_GUID *VendorGuid,
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IN VOID *Data,
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IN UINTN DataSize,
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IN VARIABLE_POINTER_TRACK *Variable,
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IN UINT32 Attributes OPTIONAL,
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IN BOOLEAN IsPk
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);
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/**
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Process variable with key exchange key for verification.
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@param[in] VariableName Name of Variable to be found.
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@param[in] VendorGuid Variable vendor GUID.
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@param[in] Data Data pointer.
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@param[in] DataSize Size of Data found. If size is less than the
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data, this value contains the required size.
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@param[in] Variable The variable information that is used to keep track of variable usage.
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@param[in] Attributes Attribute value of the variable.
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@return EFI_INVALID_PARAMETER Invalid parameter.
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@return EFI_SECURITY_VIOLATION The variable does NOT pass the validation
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check carried out by the firmware.
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@return EFI_SUCCESS Variable passed validation successfully.
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**/
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EFI_STATUS
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ProcessVarWithKek (
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IN CHAR16 *VariableName,
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IN EFI_GUID *VendorGuid,
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IN VOID *Data,
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IN UINTN DataSize,
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IN VARIABLE_POINTER_TRACK *Variable,
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IN UINT32 Attributes OPTIONAL
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);
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/**
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Compare two EFI_TIME data.
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@param FirstTime A pointer to the first EFI_TIME data.
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@param SecondTime A pointer to the second EFI_TIME data.
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@retval TRUE The FirstTime is not later than the SecondTime.
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@retval FALSE The FirstTime is later than the SecondTime.
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**/
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BOOLEAN
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CompareTimeStamp (
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IN EFI_TIME *FirstTime,
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IN EFI_TIME *SecondTime
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);
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/**
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Process variable with EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS set
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@param[in] VariableName Name of Variable to be found.
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@param[in] VendorGuid Variable vendor GUID.
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@param[in] Data Data pointer.
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@param[in] DataSize Size of Data found. If size is less than the
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data, this value contains the required size.
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@param[in] Variable The variable information which is used to keep track of variable usage.
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@param[in] Attributes Attribute value of the variable.
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@param[in] Pk Verify against PK or KEK database.
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@param[out] VarDel Delete the variable or not.
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@retval EFI_INVALID_PARAMETER Invalid parameter.
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@retval EFI_SECURITY_VIOLATION The variable does NOT pass the validation
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check carried out by the firmware.
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@retval EFI_OUT_OF_RESOURCES Failed to process variable due to lack
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of resources.
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@retval EFI_SUCCESS Variable pass validation successfully.
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**/
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EFI_STATUS
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VerifyTimeBasedPayload (
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IN CHAR16 *VariableName,
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IN EFI_GUID *VendorGuid,
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IN VOID *Data,
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IN UINTN DataSize,
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IN VARIABLE_POINTER_TRACK *Variable,
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IN UINT32 Attributes,
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IN BOOLEAN Pk,
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OUT BOOLEAN *VarDel
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);
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extern UINT8 mPubKeyStore[MAX_KEYDB_SIZE];
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extern UINT32 mPubKeyNumber;
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extern VOID *mHashCtx;
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extern VOID *mStorageArea;
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#endif
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