mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-21 15:57:42 +01:00
99 lines
4.3 KiB
C
99 lines
4.3 KiB
C
/** @file
|
|
If a GUID-defined section is encountered when doing section extraction,
|
|
the PEI Foundation or the EFI_PEI_FILE_LOADER_PPI instance
|
|
calls the appropriate instance of the GUIDed Section Extraction PPI
|
|
to extract the section stream contained therein.
|
|
|
|
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
@par Revision Reference:
|
|
This PPI is introduced in PI Version 1.0.
|
|
|
|
**/
|
|
|
|
#ifndef __EFI_GUIDED_SECTION_EXTRACTION_PPI_H__
|
|
#define __EFI_GUIDED_SECTION_EXTRACTION_PPI_H__
|
|
|
|
//
|
|
// Typically, protocol interface structures are identified
|
|
// by associating them with a GUID. Each instance of
|
|
// a protocol with a given GUID must have
|
|
// the same interface structure. While all instances of
|
|
// the GUIDed Section Extraction PPI must have
|
|
// the same interface structure, they do not all have
|
|
// te same GUID. The GUID that is associated with
|
|
// an instance of the GUIDed Section Extraction Protocol
|
|
// is used to correlate it with the GUIDed section type
|
|
// that it is intended to process.
|
|
//
|
|
|
|
|
|
typedef struct _EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI;
|
|
|
|
|
|
/**
|
|
Processes the input section and returns the data contained therein
|
|
along with the authentication status.
|
|
|
|
The ExtractSection() function processes the input section and
|
|
returns a pointer to the section contents. If the section being
|
|
extracted does not require processing (if the section
|
|
GuidedSectionHeader.Attributes has the
|
|
EFI_GUIDED_SECTION_PROCESSING_REQUIRED field cleared), then
|
|
OutputBuffer is just updated to point to the start of the
|
|
section's contents. Otherwise, *Buffer must be allocated
|
|
from PEI permanent memory.
|
|
|
|
@param This Indicates the EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI
|
|
instance.
|
|
@param InputSection Buffer containing the input GUIDed section to be
|
|
processed.
|
|
@param OutputBuffer *OutputBuffer is allocated from PEI permanent memory
|
|
and contains the new section stream.
|
|
@param OutputSize A pointer to a caller-allocated UINTN in which
|
|
the size of *OutputBuffer allocation is stored.
|
|
If the function returns anything other than
|
|
EFI_SUCCESS, the value of *OutputSize is undefined.
|
|
@param AuthenticationStatus A pointer to a caller-allocated UINT32 that indicates
|
|
the authentication status of the output buffer.
|
|
If the input section's
|
|
GuidedSectionHeader.Attributes field has the
|
|
EFI_GUIDED_SECTION_AUTH_STATUS_VALID bit as clear,
|
|
*AuthenticationStatus must return zero. These bits
|
|
reflect the status of the extraction operation.
|
|
If the function returns anything other than EFI_SUCCESS,
|
|
the value of *AuthenticationStatus is undefined.
|
|
|
|
@retval EFI_SUCCESS The InputSection was successfully processed and the
|
|
section contents were returned.
|
|
@retval EFI_OUT_OF_RESOURCES The system has insufficient resources to process the request.
|
|
@retval EFI_INVALID_PARAMETER The GUID in InputSection does not match this instance of the
|
|
GUIDed Section Extraction PPI.
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_PEI_EXTRACT_GUIDED_SECTION)(
|
|
IN CONST EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI *This,
|
|
IN CONST VOID *InputSection,
|
|
OUT VOID **OutputBuffer,
|
|
OUT UINTN *OutputSize,
|
|
OUT UINT32 *AuthenticationStatus
|
|
);
|
|
|
|
///
|
|
/// If a GUID-defined section is encountered when doing section extraction,
|
|
/// the PEI Foundation or the EFI_PEI_FILE_LOADER_PPI instance
|
|
/// calls the appropriate instance of the GUIDed Section
|
|
/// Extraction PPI to extract the section stream contained
|
|
/// therein.
|
|
///
|
|
struct _EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI {
|
|
EFI_PEI_EXTRACT_GUIDED_SECTION ExtractSection;
|
|
};
|
|
|
|
|
|
|
|
#endif
|
|
|