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/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiPei.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/ExtractGuidedSectionLib.h>
#include <Library/PcdLib.h>
#include <Library/PrePiLib.h>
#define PRE_PI_EXTRACT_GUIDED_SECTION_DATA_GUID { 0x385A982C, 0x2F49, 0x4043, { 0xA5, 0x1E, 0x49, 0x01, 0x02, 0x5C, 0x8B, 0x6B }}
typedef struct {
UINT32 NumberOfExtractHandler;
GUID *ExtractHandlerGuidTable;
EXTRACT_GUIDED_SECTION_DECODE_HANDLER *ExtractDecodeHandlerTable;
EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER *ExtractGetInfoHandlerTable;
} PRE_PI_EXTRACT_GUIDED_SECTION_DATA;
PRE_PI_EXTRACT_GUIDED_SECTION_DATA *
GetSavedData (
VOID
)
{
EFI_HOB_GUID_TYPE *GuidHob;
GUID SavedDataGuid = PRE_PI_EXTRACT_GUIDED_SECTION_DATA_GUID;
GuidHob = GetFirstGuidHob (&SavedDataGuid);
GuidHob++;
return (PRE_PI_EXTRACT_GUIDED_SECTION_DATA *)GuidHob;
}
RETURN_STATUS
EFIAPI
ExtractGuidedSectionRegisterHandlers (
IN CONST GUID *SectionGuid,
IN EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER GetInfoHandler,
IN EXTRACT_GUIDED_SECTION_DECODE_HANDLER DecodeHandler
)
{
PRE_PI_EXTRACT_GUIDED_SECTION_DATA *SavedData;
UINT32 Index;
//
// Check input parameter.
//
if (SectionGuid == NULL) {
return RETURN_INVALID_PARAMETER;
}
SavedData = GetSavedData ();
//
// Search the match registered GetInfo handler for the input guided section.
//
for (Index = 0; Index < SavedData->NumberOfExtractHandler; Index++) {
if (CompareGuid (&SavedData->ExtractHandlerGuidTable[Index], SectionGuid)) {
break;
}
}
//
// If the guided handler has been registered before, only update its handler.
//
if (Index < SavedData->NumberOfExtractHandler) {
SavedData->ExtractDecodeHandlerTable[Index] = DecodeHandler;
SavedData->ExtractGetInfoHandlerTable[Index] = GetInfoHandler;
return RETURN_SUCCESS;
}
//
// Check the global table is enough to contain new Handler.
//
if (SavedData->NumberOfExtractHandler >= PcdGet32 (PcdMaximumGuidedExtractHandler)) {
return RETURN_OUT_OF_RESOURCES;
}
//
// Register new Handler and guid value.
//
CopyGuid (&SavedData->ExtractHandlerGuidTable[SavedData->NumberOfExtractHandler], SectionGuid);
SavedData->ExtractDecodeHandlerTable[SavedData->NumberOfExtractHandler] = DecodeHandler;
SavedData->ExtractGetInfoHandlerTable[SavedData->NumberOfExtractHandler++] = GetInfoHandler;
return RETURN_SUCCESS;
}
UINTN
EFIAPI
ExtractGuidedSectionGetGuidList (
IN OUT GUID **ExtractHandlerGuidTable
)
{
PRE_PI_EXTRACT_GUIDED_SECTION_DATA *SavedData;
ASSERT (ExtractHandlerGuidTable != NULL);
SavedData = GetSavedData ();
*ExtractHandlerGuidTable = SavedData->ExtractHandlerGuidTable;
return SavedData->NumberOfExtractHandler;
}
RETURN_STATUS
EFIAPI
ExtractGuidedSectionGetInfo (
IN CONST VOID *InputSection,
OUT UINT32 *OutputBufferSize,
OUT UINT32 *ScratchBufferSize,
OUT UINT16 *SectionAttribute
)
{
PRE_PI_EXTRACT_GUIDED_SECTION_DATA *SavedData;
UINT32 Index;
EFI_GUID *SectionDefinitionGuid;
if (InputSection == NULL) {
return RETURN_INVALID_PARAMETER;
}
ASSERT (OutputBufferSize != NULL);
ASSERT (ScratchBufferSize != NULL);
ASSERT (SectionAttribute != NULL);
SavedData = GetSavedData ();
if (IS_SECTION2 (InputSection)) {
SectionDefinitionGuid = &(((EFI_GUID_DEFINED_SECTION2 *)InputSection)->SectionDefinitionGuid);
} else {
SectionDefinitionGuid = &(((EFI_GUID_DEFINED_SECTION *)InputSection)->SectionDefinitionGuid);
}
//
// Search the match registered GetInfo handler for the input guided section.
//
for (Index = 0; Index < SavedData->NumberOfExtractHandler; Index++) {
if (CompareGuid (&SavedData->ExtractHandlerGuidTable[Index], SectionDefinitionGuid)) {
break;
}
}
//
// Not found, the input guided section is not supported.
//
if (Index == SavedData->NumberOfExtractHandler) {
return RETURN_INVALID_PARAMETER;
}
//
// Call the match handler to getinfo for the input section data.
//
return SavedData->ExtractGetInfoHandlerTable[Index](
InputSection,
OutputBufferSize,
ScratchBufferSize,
SectionAttribute
);
}
RETURN_STATUS
EFIAPI
ExtractGuidedSectionDecode (
IN CONST VOID *InputSection,
OUT VOID **OutputBuffer,
OUT VOID *ScratchBuffer OPTIONAL,
OUT UINT32 *AuthenticationStatus
)
{
PRE_PI_EXTRACT_GUIDED_SECTION_DATA *SavedData;
UINT32 Index;
EFI_GUID *SectionDefinitionGuid;
if (InputSection == NULL) {
return RETURN_INVALID_PARAMETER;
}
ASSERT (OutputBuffer != NULL);
ASSERT (AuthenticationStatus != NULL);
SavedData = GetSavedData ();
if (IS_SECTION2 (InputSection)) {
SectionDefinitionGuid = &(((EFI_GUID_DEFINED_SECTION2 *)InputSection)->SectionDefinitionGuid);
} else {
SectionDefinitionGuid = &(((EFI_GUID_DEFINED_SECTION *)InputSection)->SectionDefinitionGuid);
}
//
// Search the match registered GetInfo handler for the input guided section.
//
for (Index = 0; Index < SavedData->NumberOfExtractHandler; Index++) {
if (CompareGuid (&SavedData->ExtractHandlerGuidTable[Index], SectionDefinitionGuid)) {
break;
}
}
//
// Not found, the input guided section is not supported.
//
if (Index == SavedData->NumberOfExtractHandler) {
return RETURN_INVALID_PARAMETER;
}
//
// Call the match handler to getinfo for the input section data.
//
return SavedData->ExtractDecodeHandlerTable[Index](
InputSection,
OutputBuffer,
ScratchBuffer,
AuthenticationStatus
);
}
RETURN_STATUS
EFIAPI
ExtractGuidedSectionLibConstructor (
VOID
)
{
PRE_PI_EXTRACT_GUIDED_SECTION_DATA SavedData;
GUID HobGuid = PRE_PI_EXTRACT_GUIDED_SECTION_DATA_GUID;
//
// Allocate global pool space to store the registered handler and its guid value.
//
SavedData.ExtractHandlerGuidTable = (GUID *)AllocatePool (PcdGet32 (PcdMaximumGuidedExtractHandler) * sizeof (GUID));
if (SavedData.ExtractHandlerGuidTable == NULL) {
return RETURN_OUT_OF_RESOURCES;
}
SavedData.ExtractDecodeHandlerTable = (EXTRACT_GUIDED_SECTION_DECODE_HANDLER *)AllocatePool (PcdGet32 (PcdMaximumGuidedExtractHandler) * sizeof (EXTRACT_GUIDED_SECTION_DECODE_HANDLER));
if (SavedData.ExtractDecodeHandlerTable == NULL) {
return RETURN_OUT_OF_RESOURCES;
}
SavedData.ExtractGetInfoHandlerTable = (EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER *)AllocatePool (PcdGet32 (PcdMaximumGuidedExtractHandler) * sizeof (EXTRACT_GUIDED_SECTION_GET_INFO_HANDLER));
if (SavedData.ExtractGetInfoHandlerTable == NULL) {
return RETURN_OUT_OF_RESOURCES;
}
//
// the initialized number is Zero.
//
SavedData.NumberOfExtractHandler = 0;
BuildGuidDataHob (&HobGuid, &SavedData, sizeof (SavedData));
return RETURN_SUCCESS;
}
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