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450 lines
27 KiB
C
450 lines
27 KiB
C
/** @file
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The EFI_BIS_PROTOCOL is used to check a digital signature of a data block
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against a digital certificate for the purpose of an integrity and authorization check.
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Copyright (c) 2006 - 2009, Intel Corporation
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All rights reserved. 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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@par Revision Reference:
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This Protocol is introduced in EFI Specification 1.10
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**/
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#ifndef __BIS_H__
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#define __BIS_H__
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#define EFI_BIS_PROTOCOL_GUID \
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{ \
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0x0b64aab0, 0x5429, 0x11d4, {0x98, 0x16, 0x00, 0xa0, 0xc9, 0x1f, 0xad, 0xcf } \
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}
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//
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// X-Intel-BIS-ParameterSet
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// Attribute value
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// Binary Value of X-Intel-BIS-ParameterSet Attribute.
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// (Value is Base-64 encoded in actual signed manifest).
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//
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#define BOOT_OBJECT_AUTHORIZATION_PARMSET_GUID \
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{ \
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0xedd35e31, 0x7b9, 0x11d2, { 0x83,0xa3,0x0,0xa0,0xc9,0x1f,0xad,0xcf } \
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}
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typedef struct _EFI_BIS_PROTOCOL EFI_BIS_PROTOCOL;
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//
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// Basic types
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//
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typedef VOID *BIS_APPLICATION_HANDLE;
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typedef UINT16 BIS_ALG_ID;
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typedef UINT32 BIS_CERT_ID;
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///
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/// EFI_BIS_DATA instances obtained from BIS must be freed by calling Free( ).
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///
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typedef struct {
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UINT32 Length; ///< Length of Data in 8 bit bytes.
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UINT8 *Data; ///< 32 Bit Flat Address of data.
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} EFI_BIS_DATA;
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///
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/// EFI_BIS_VERSION type.
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///
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typedef struct {
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UINT32 Major; ///< the major BIS version number.
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UINT32 Minor; ///< a minor BIS version number.
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} EFI_BIS_VERSION;
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//
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// ----------------------------------------------------//
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// Use these values to initialize EFI_BIS_VERSION.Major
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// and to interpret results of Initialize.
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// ----------------------------------------------------//
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//
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#define BIS_CURRENT_VERSION_MAJOR BIS_VERSION_1
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#define BIS_VERSION_1 1
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///
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/// EFI_BIS_SIGNATURE_INFO type.
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///
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typedef struct {
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BIS_CERT_ID CertificateID; ///< Truncated hash of platform Boot Object
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BIS_ALG_ID AlgorithmID; ///< A signature algorithm number.
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UINT16 KeyLength; ///< Length of alg. keys in bits.
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} EFI_BIS_SIGNATURE_INFO;
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///
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/// values for EFI_BIS_SIGNATURE_INFO.AlgorithmID.
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/// The exact numeric values come from
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/// "Common Data Security Architecture (CDSA) Specification".
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///
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#define BIS_ALG_DSA (41) // CSSM_ALGID_DSA
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#define BIS_ALG_RSA_MD5 (42) // CSSM_ALGID_MD5_WITH_RSA
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///
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/// values for EFI_BIS_SIGNATURE_INFO.CertificateId.
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///
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#define BIS_CERT_ID_DSA BIS_ALG_DSA // CSSM_ALGID_DSA
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#define BIS_CERT_ID_RSA_MD5 BIS_ALG_RSA_MD5 // CSSM_ALGID_MD5_WITH_RSA
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///
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/// the mask value that gets applied to the truncated hash of a
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/// platform Boot Object Authorization Certificate to create the certificateID.
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/// A certificateID must not have any bits set to the value 1 other than bits in
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/// this mask.
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///
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#define BIS_CERT_ID_MASK (0xFF7F7FFF)
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///
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/// Macros for dealing with the EFI_BIS_DATA object obtained
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/// from BIS_GetSignatureInfo()
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/// BIS_GET_SIGINFO_COUNT - tells how many EFI_BIS_SIGNATURE_INFO
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/// elements are contained in a EFI_BIS_DATA struct pointed to
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/// by the provided EFI_BIS_DATA*.
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///
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#define BIS_GET_SIGINFO_COUNT(BisDataPtr) ((BisDataPtr)->Length / sizeof (EFI_BIS_SIGNATURE_INFO))
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///
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/// BIS_GET_SIGINFO_ARRAY - produces a EFI_BIS_SIGNATURE_INFO*
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/// from a given EFI_BIS_DATA*.
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///
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#define BIS_GET_SIGINFO_ARRAY(BisDataPtr) ((EFI_BIS_SIGNATURE_INFO *) (BisDataPtr)->Data)
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///
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/// Support old name for backward compatibility
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///
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#define BOOT_OBJECT_AUTHORIZATION_PARMSET_GUIDVALUE \
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BOOT_OBJECT_AUTHORIZATION_PARMSET_GUID
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/**
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Initializes the BIS service, checking that it is compatible with the version requested by the caller.
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After this call, other BIS functions may be invoked.
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@param This A pointer to the EFI_BIS_PROTOCOL object.
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@param AppHandle The function writes the new BIS_APPLICATION_HANDLE if
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successful, otherwise it writes NULL. The caller must eventually
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destroy this handle by calling Shutdown().
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@param InterfaceVersion On input, the caller supplies the major version number of the
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interface version desired.
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On output, both the major and minor
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version numbers are updated with the major and minor version
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numbers of the interface. This update is done whether or not the
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initialization was successful.
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@param TargetAddress Indicates a network or device address of the BIS platform to connect to.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_INCOMPATIBLE_VERSION The InterfaceVersion.Major requested by the
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caller was not compatible with the interface version of the
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implementation. The InterfaceVersion.Major has
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been updated with the current interface version.
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@retval EFI_UNSUPPORTED This is a local-platform implementation and
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TargetAddress.Data was not NULL, or
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TargetAddress.Data was any other value that was not
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supported by the implementation.
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@retval EFI_OUT_OF_RESOURCES The function failed due to lack of memory or other resources.
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@retval EFI_DEVICE_ERROR One of the following device errors:
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* The function encountered an unexpected internal failure while initializing a cryptographic software module
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* No cryptographic software module with compatible version was found
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found
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* A resource limitation was encountered while using a cryptographic software module.
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@retval EFI_INVALID_PARAMETER The This parameter supplied by the caller is NULL or does not
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reference a valid EFI_BIS_PROTOCOL object, or
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The AppHandle parameter supplied by the caller is NULL or
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an invalid memory reference, or
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The InterfaceVersion parameter supplied by the caller
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is NULL or an invalid memory reference, or
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The TargetAddress parameter supplied by the caller is
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NULL or an invalid memory reference.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_BIS_INITIALIZE)(
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IN EFI_BIS_PROTOCOL *This,
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OUT BIS_APPLICATION_HANDLE *AppHandle,
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IN OUT EFI_BIS_VERSION *InterfaceVersion,
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IN EFI_BIS_DATA *TargetAddress
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);
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/**
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Frees memory structures allocated and returned by other functions in the EFI_BIS protocol.
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@param AppHandle An opaque handle that identifies the caller's instance of initialization
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of the BIS service.
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@param ToFree An EFI_BIS_DATA* and associated memory block to be freed.
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This EFI_BIS_DATA* must have been allocated by one of the other BIS functions.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NO_MAPPING The AppHandle parameter is not or is no longer a valid
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application instance handle associated with the EFI_BIS protocol.
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@retval EFI_OUT_OF_RESOURCES The function failed due to lack of memory or other resources.
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@retval EFI_INVALID_PARAMETER The ToFree parameter is not or is no longer a memory resource
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associated with this AppHandle.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_BIS_FREE)(
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IN BIS_APPLICATION_HANDLE AppHandle,
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IN EFI_BIS_DATA *ToFree
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);
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/**
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Shuts down an application's instance of the BIS service, invalidating the application handle. After
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this call, other BIS functions may no longer be invoked using the application handle value.
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@param AppHandle An opaque handle that identifies the caller's instance of initialization
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of the BIS service.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NO_MAPPING The AppHandle parameter is not or is no longer a valid
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application instance handle associated with the EFI_BIS protocol.
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@retval EFI_OUT_OF_RESOURCES The function failed due to lack of memory or other resources.
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@retval EFI_DEVICE_ERROR The function encountered an unexpected internal failure while
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returning resources associated with a cryptographic software module, or
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while trying to shut down a cryptographic software module.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_BIS_SHUTDOWN)(
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IN BIS_APPLICATION_HANDLE AppHandle
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);
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/**
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Retrieves the certificate that has been configured as the identity of the organization designated as
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the source of authorization for signatures of boot objects.
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@param AppHandle An opaque handle that identifies the caller's instance of initialization
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of the BIS service.
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@param Certificate The function writes an allocated EFI_BIS_DATA* containing the Boot
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Object Authorization Certificate object. The caller must
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eventually free the memory allocated by this function using the function Free().
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NO_MAPPING The AppHandle parameter is not or is no longer a valid
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application instance handle associated with the EFI_BIS protocol.
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@retval EFI_NOT_FOUND There is no Boot Object Authorization Certificate currently installed.
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@retval EFI_OUT_OF_RESOURCES The function failed due to lack of memory or other resources.
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@retval EFI_INVALID_PARAMETER The Certificate parameter supplied by the caller is NULL or
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an invalid memory reference.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_BIS_GET_BOOT_OBJECT_AUTHORIZATION_CERTIFICATE)(
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IN BIS_APPLICATION_HANDLE AppHandle,
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OUT EFI_BIS_DATA **Certificate
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);
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/**
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Verifies the integrity and authorization of the indicated data object according to the
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indicated credentials.
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@param AppHandle An opaque handle that identifies the caller's instance of initialization
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of the BIS service.
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@param Credentials A Signed Manifest containing verification information for the indicated
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data object.
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@param DataObject An in-memory copy of the raw data object to be verified.
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@param IsVerified The function writes TRUE if the verification succeeded, otherwise
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FALSE.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NO_MAPPING The AppHandle parameter is not or is no longer a valid
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application instance handle associated with the EFI_BIS protocol.
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@retval EFI_OUT_OF_RESOURCES The function failed due to lack of memory or other resources.
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@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
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@retval EFI_SECURITY_VIOLATION The signed manifest supplied as the Credentials parameter
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was invalid (could not be parsed) or Platform-specific authorization failed, etc.
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@retval EFI_DEVICE_ERROR An unexpected internal error occurred.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_BIS_VERIFY_BOOT_OBJECT)(
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IN BIS_APPLICATION_HANDLE AppHandle,
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IN EFI_BIS_DATA *Credentials,
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IN EFI_BIS_DATA *DataObject,
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OUT BOOLEAN *IsVerified
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);
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/**
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Retrieves the current status of the Boot Authorization Check Flag.
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@param AppHandle An opaque handle that identifies the caller's instance of initialization
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of the BIS service.
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@param CheckIsRequired The function writes the value TRUE if a Boot Authorization Check is
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currently required on this platform, otherwise the function writes
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FALSE.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NO_MAPPING The AppHandle parameter is not or is no longer a valid
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application instance handle associated with the EFI_BIS protocol.
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@retval EFI_OUT_OF_RESOURCES The function failed due to lack of memory or other resources.
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@retval EFI_INVALID_PARAMETER The CheckIsRequired parameter supplied by the caller is
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NULL or an invalid memory reference.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_BIS_GET_BOOT_OBJECT_AUTHORIZATION_CHECKFLAG)(
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IN BIS_APPLICATION_HANDLE AppHandle,
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OUT BOOLEAN *CheckIsRequired
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);
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/**
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Retrieves a unique token value to be included in the request credential for the next update of any
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parameter in the Boot Object Authorization set
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@param AppHandle An opaque handle that identifies the caller's instance of initialization
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of the BIS service.
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@param UpdateToken The function writes an allocated EFI_BIS_DATA* containing the new
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unique update token value. The caller must
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eventually free the memory allocated by this function using the function Free().
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NO_MAPPING The AppHandle parameter is not or is no longer a valid
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application instance handle associated with the EFI_BIS protocol.
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@retval EFI_OUT_OF_RESOURCES The function failed due to lack of memory or other resources.
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@retval EFI_INVALID_PARAMETER The UpdateToken parameter supplied by the caller is NULL or
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an invalid memory reference.
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@retval EFI_DEVICE_ERROR An unexpected internal error occurred.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_BIS_GET_BOOT_OBJECT_AUTHORIZATION_UPDATE_TOKEN)(
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IN BIS_APPLICATION_HANDLE AppHandle,
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OUT EFI_BIS_DATA **UpdateToken
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);
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/**
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Updates one of the configurable parameters of the Boot Object Authorization set.
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@param AppHandle An opaque handle that identifies the caller's instance of initialization
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of the BIS service.
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@param RequestCredential This is a Signed Manifest with embedded attributes that carry the details
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of the requested update.
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@param NewUpdateToken The function writes an allocated EFI_BIS_DATA* containing the new
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unique update token value. The caller must
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eventually free the memory allocated by this function using the function Free().
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NO_MAPPING The AppHandle parameter is not or is no longer a valid
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application instance handle associated with the EFI_BIS protocol.
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@retval EFI_OUT_OF_RESOURCES The function failed due to lack of memory or other resources.
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@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
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@retval EFI_SECURITY_VIOLATION The signed manifest supplied as the RequestCredential parameter
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was invalid (could not be parsed) or Platform-specific authorization failed, etc.
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@retval EFI_DEVICE_ERROR An unexpected internal error occurred while analyzing the new
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certificate's key algorithm, or while attempting to retrieve
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the public key algorithm of the manifest's signer's certificate,
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or An unexpected internal error occurred in a cryptographic software module.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_BIS_UPDATE_BOOT_OBJECT_AUTHORIZATION)(
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IN BIS_APPLICATION_HANDLE AppHandle,
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IN EFI_BIS_DATA *RequestCredential,
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OUT EFI_BIS_DATA **NewUpdateToken
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);
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/**
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Verifies the integrity and authorization of the indicated data object according to the indicated
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credentials and authority certificate.
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@param AppHandle An opaque handle that identifies the caller's instance of initialization
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of the BIS service.
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@param Credentials A Signed Manifest containing verification information for the
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indicated data object.
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@param DataObject An in-memory copy of the raw data object to be verified.
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@param SectionName An ASCII string giving the section name in the
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manifest holding the verification information (in other words,
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hash value) that corresponds to DataObject.
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@param AuthorityCertificate A digital certificate whose public key must match the signer's
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public key which is found in the credentials.
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@param IsVerified The function writes TRUE if the verification was successful.
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Otherwise, the function writes FALSE.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NO_MAPPING The AppHandle parameter is not or is no longer a valid
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application instance handle associated with the EFI_BIS protocol.
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@retval EFI_OUT_OF_RESOURCES The function failed due to lack of memory or other resources.
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@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
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@retval EFI_SECURITY_VIOLATION The Credentials.Data supplied by the caller is NULL,
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or the AuthorityCertificate supplied by the caller was
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invalid (could not be parsed),
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or Platform-specific authorization failed, etc.
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@retval EFI_DEVICE_ERROR An unexpected internal error occurred while attempting to retrieve
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the public key algorithm of the manifest's signer's certificate,
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or An unexpected internal error occurred in a cryptographic software module.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_BIS_VERIFY_OBJECT_WITH_CREDENTIAL)(
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IN BIS_APPLICATION_HANDLE AppHandle,
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IN EFI_BIS_DATA *Credentials,
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IN EFI_BIS_DATA *DataObject,
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IN EFI_BIS_DATA *SectionName,
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IN EFI_BIS_DATA *AuthorityCertificate,
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OUT BOOLEAN *IsVerified
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);
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/**
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Retrieves a list of digital certificate identifier, digital signature algorithm, hash algorithm, and keylength
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combinations that the platform supports.
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@param AppHandle An opaque handle that identifies the caller's instance of initialization
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of the BIS service.
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@param SignatureInfo The function writes an allocated EFI_BIS_DATA* containing the array
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of EFI_BIS_SIGNATURE_INFO structures representing the supported
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digital certificate identifier, algorithm, and key length combinations.
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The caller must eventually free the memory allocated by this function using the function Free().
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NO_MAPPING The AppHandle parameter is not or is no longer a valid
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application instance handle associated with the EFI_BIS protocol.
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@retval EFI_OUT_OF_RESOURCES The function failed due to lack of memory or other resources.
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@retval EFI_INVALID_PARAMETER The SignatureInfo parameter supplied by the caller is NULL
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or an invalid memory reference.
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@retval EFI_DEVICE_ERROR An unexpected internal error occurred in a
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cryptographic software module, or
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The function encountered an unexpected internal consistency check
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failure (possible corruption of stored Boot Object Authorization Certificate).
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_BIS_GET_SIGNATURE_INFO)(
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IN BIS_APPLICATION_HANDLE AppHandle,
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OUT EFI_BIS_DATA **SignatureInfo
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);
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///
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/// The EFI_BIS_PROTOCOL is used to check a digital signature of a data block against a digital
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/// certificate for the purpose of an integrity and authorization check.
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///
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struct _EFI_BIS_PROTOCOL {
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EFI_BIS_INITIALIZE Initialize;
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EFI_BIS_SHUTDOWN Shutdown;
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EFI_BIS_FREE Free;
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EFI_BIS_GET_BOOT_OBJECT_AUTHORIZATION_CERTIFICATE GetBootObjectAuthorizationCertificate;
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EFI_BIS_GET_BOOT_OBJECT_AUTHORIZATION_CHECKFLAG GetBootObjectAuthorizationCheckFlag;
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EFI_BIS_GET_BOOT_OBJECT_AUTHORIZATION_UPDATE_TOKEN GetBootObjectAuthorizationUpdateToken;
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EFI_BIS_GET_SIGNATURE_INFO GetSignatureInfo;
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EFI_BIS_UPDATE_BOOT_OBJECT_AUTHORIZATION UpdateBootObjectAuthorization;
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EFI_BIS_VERIFY_BOOT_OBJECT VerifyBootObject;
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EFI_BIS_VERIFY_OBJECT_WITH_CREDENTIAL VerifyObjectWithCredential;
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};
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extern EFI_GUID gEfiBisProtocolGuid;
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extern EFI_GUID gBootObjectAuthorizationParmsetGuid;
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#endif
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