mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-26 16:47:40 +01:00
197 lines
8.0 KiB
C
197 lines
8.0 KiB
C
/** @file
|
|
LZMA Decompress GUIDed Section Extraction Library.
|
|
It wraps Lzma decompress interfaces to GUIDed Section Extraction interfaces
|
|
and registers them into GUIDed handler table.
|
|
|
|
Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#include "LzmaDecompressLibInternal.h"
|
|
|
|
/**
|
|
Examines a GUIDed section and returns the size of the decoded buffer and the
|
|
size of an scratch buffer required to actually decode the data in a GUIDed section.
|
|
|
|
Examines a GUIDed section specified by InputSection.
|
|
If GUID for InputSection does not match the GUID that this handler supports,
|
|
then RETURN_UNSUPPORTED is returned.
|
|
If the required information can not be retrieved from InputSection,
|
|
then RETURN_INVALID_PARAMETER is returned.
|
|
If the GUID of InputSection does match the GUID that this handler supports,
|
|
then the size required to hold the decoded buffer is returned in OututBufferSize,
|
|
the size of an optional scratch buffer is returned in ScratchSize, and the Attributes field
|
|
from EFI_GUID_DEFINED_SECTION header of InputSection is returned in SectionAttribute.
|
|
|
|
If InputSection is NULL, then ASSERT().
|
|
If OutputBufferSize is NULL, then ASSERT().
|
|
If ScratchBufferSize is NULL, then ASSERT().
|
|
If SectionAttribute is NULL, then ASSERT().
|
|
|
|
|
|
@param[in] InputSection A pointer to a GUIDed section of an FFS formatted file.
|
|
@param[out] OutputBufferSize A pointer to the size, in bytes, of an output buffer required
|
|
if the buffer specified by InputSection were decoded.
|
|
@param[out] ScratchBufferSize A pointer to the size, in bytes, required as scratch space
|
|
if the buffer specified by InputSection were decoded.
|
|
@param[out] SectionAttribute A pointer to the attributes of the GUIDed section. See the Attributes
|
|
field of EFI_GUID_DEFINED_SECTION in the PI Specification.
|
|
|
|
@retval RETURN_SUCCESS The information about InputSection was returned.
|
|
@retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports.
|
|
@retval RETURN_INVALID_PARAMETER The information can not be retrieved from the section specified by InputSection.
|
|
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
LzmaGuidedSectionGetInfo (
|
|
IN CONST VOID *InputSection,
|
|
OUT UINT32 *OutputBufferSize,
|
|
OUT UINT32 *ScratchBufferSize,
|
|
OUT UINT16 *SectionAttribute
|
|
)
|
|
{
|
|
ASSERT (InputSection != NULL);
|
|
ASSERT (OutputBufferSize != NULL);
|
|
ASSERT (ScratchBufferSize != NULL);
|
|
ASSERT (SectionAttribute != NULL);
|
|
|
|
if (IS_SECTION2 (InputSection)) {
|
|
if (!CompareGuid (
|
|
&gLzmaCustomDecompressGuid,
|
|
&(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid))) {
|
|
return RETURN_INVALID_PARAMETER;
|
|
}
|
|
|
|
*SectionAttribute = ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->Attributes;
|
|
|
|
return LzmaUefiDecompressGetInfo (
|
|
(UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset,
|
|
SECTION2_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset,
|
|
OutputBufferSize,
|
|
ScratchBufferSize
|
|
);
|
|
} else {
|
|
if (!CompareGuid (
|
|
&gLzmaCustomDecompressGuid,
|
|
&(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) {
|
|
return RETURN_INVALID_PARAMETER;
|
|
}
|
|
|
|
*SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)->Attributes;
|
|
|
|
return LzmaUefiDecompressGetInfo (
|
|
(UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset,
|
|
SECTION_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset,
|
|
OutputBufferSize,
|
|
ScratchBufferSize
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
Decompress a LZAM compressed GUIDed section into a caller allocated output buffer.
|
|
|
|
Decodes the GUIDed section specified by InputSection.
|
|
If GUID for InputSection does not match the GUID that this handler supports, then RETURN_UNSUPPORTED is returned.
|
|
If the data in InputSection can not be decoded, then RETURN_INVALID_PARAMETER is returned.
|
|
If the GUID of InputSection does match the GUID that this handler supports, then InputSection
|
|
is decoded into the buffer specified by OutputBuffer and the authentication status of this
|
|
decode operation is returned in AuthenticationStatus. If the decoded buffer is identical to the
|
|
data in InputSection, then OutputBuffer is set to point at the data in InputSection. Otherwise,
|
|
the decoded data will be placed in caller allocated buffer specified by OutputBuffer.
|
|
|
|
If InputSection is NULL, then ASSERT().
|
|
If OutputBuffer is NULL, then ASSERT().
|
|
If ScratchBuffer is NULL and this decode operation requires a scratch buffer, then ASSERT().
|
|
If AuthenticationStatus is NULL, then ASSERT().
|
|
|
|
|
|
@param[in] InputSection A pointer to a GUIDed section of an FFS formatted file.
|
|
@param[out] OutputBuffer A pointer to a buffer that contains the result of a decode operation.
|
|
@param[out] ScratchBuffer A caller allocated buffer that may be required by this function
|
|
as a scratch buffer to perform the decode operation.
|
|
@param[out] AuthenticationStatus
|
|
A pointer to the authentication status of the decoded output buffer.
|
|
See the definition of authentication status in the EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI
|
|
section of the PI Specification. EFI_AUTH_STATUS_PLATFORM_OVERRIDE must
|
|
never be set by this handler.
|
|
|
|
@retval RETURN_SUCCESS The buffer specified by InputSection was decoded.
|
|
@retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports.
|
|
@retval RETURN_INVALID_PARAMETER The section specified by InputSection can not be decoded.
|
|
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
LzmaGuidedSectionExtraction (
|
|
IN CONST VOID *InputSection,
|
|
OUT VOID **OutputBuffer,
|
|
OUT VOID *ScratchBuffer, OPTIONAL
|
|
OUT UINT32 *AuthenticationStatus
|
|
)
|
|
{
|
|
ASSERT (OutputBuffer != NULL);
|
|
ASSERT (InputSection != NULL);
|
|
|
|
if (IS_SECTION2 (InputSection)) {
|
|
if (!CompareGuid (
|
|
&gLzmaCustomDecompressGuid,
|
|
&(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid))) {
|
|
return RETURN_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// Authentication is set to Zero, which may be ignored.
|
|
//
|
|
*AuthenticationStatus = 0;
|
|
|
|
return LzmaUefiDecompress (
|
|
(UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset,
|
|
SECTION2_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset,
|
|
*OutputBuffer,
|
|
ScratchBuffer
|
|
);
|
|
} else {
|
|
if (!CompareGuid (
|
|
&gLzmaCustomDecompressGuid,
|
|
&(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) {
|
|
return RETURN_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// Authentication is set to Zero, which may be ignored.
|
|
//
|
|
*AuthenticationStatus = 0;
|
|
|
|
return LzmaUefiDecompress (
|
|
(UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset,
|
|
SECTION_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset,
|
|
*OutputBuffer,
|
|
ScratchBuffer
|
|
);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
Register LzmaDecompress and LzmaDecompressGetInfo handlers with LzmaCustomerDecompressGuid.
|
|
|
|
@retval RETURN_SUCCESS Register successfully.
|
|
@retval RETURN_OUT_OF_RESOURCES No enough memory to store this handler.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
LzmaDecompressLibConstructor (
|
|
VOID
|
|
)
|
|
{
|
|
return ExtractGuidedSectionRegisterHandlers (
|
|
&gLzmaCustomDecompressGuid,
|
|
LzmaGuidedSectionGetInfo,
|
|
LzmaGuidedSectionExtraction
|
|
);
|
|
}
|
|
|