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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
GetImage.c
Abstract:
Image data extraction support for common use.
--*/
#include "Tiano.h"
#include "EfiRuntimeLib.h"
#include "EfiImageFormat.h"
#include EFI_PROTOCOL_CONSUMER (LoadedImage)
EFI_STATUS
GetImageFromFv (
#if (PI_SPECIFICATION_VERSION < 0x00010000) //;;## ...AMI_OVERRIDE... Support PI1.x
IN EFI_FIRMWARE_VOLUME_PROTOCOL *Fv,
#else
IN EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv,
#endif
IN EFI_GUID *NameGuid,
IN EFI_SECTION_TYPE SectionType,
OUT VOID **Buffer,
OUT UINTN *Size
)
{
EFI_STATUS Status;
EFI_FV_FILETYPE FileType;
EFI_FV_FILE_ATTRIBUTES Attributes;
UINT32 AuthenticationStatus;
//
// Read desired section content in NameGuid file
//
*Buffer = NULL;
*Size = 0;
Status = Fv->ReadSection (
Fv,
NameGuid,
SectionType,
0,
Buffer,
Size,
&AuthenticationStatus
);
if (EFI_ERROR (Status) && (SectionType == EFI_SECTION_TE)) {
//
// Try reading PE32 section, since the TE section does not exist
//
*Buffer = NULL;
*Size = 0;
Status = Fv->ReadSection (
Fv,
NameGuid,
EFI_SECTION_PE32,
0,
Buffer,
Size,
&AuthenticationStatus
);
}
if (EFI_ERROR (Status) &&
((SectionType == EFI_SECTION_TE) || (SectionType == EFI_SECTION_PE32))) {
//
// Try reading raw file, since the desired section does not exist
//
*Buffer = NULL;
*Size = 0;
Status = Fv->ReadFile (
Fv,
NameGuid,
Buffer,
Size,
&FileType,
&Attributes,
&AuthenticationStatus
);
}
return Status;
}
EFI_STATUS
GetImage (
IN EFI_GUID *NameGuid,
IN EFI_SECTION_TYPE SectionType,
OUT VOID **Buffer,
OUT UINTN *Size
)
{
return GetImageEx (NULL, NameGuid, SectionType, Buffer, Size, FALSE);
}
EFI_STATUS
GetImageEx (
IN EFI_HANDLE ImageHandle,
IN EFI_GUID *NameGuid,
IN EFI_SECTION_TYPE SectionType,
OUT VOID **Buffer,
OUT UINTN *Size,
BOOLEAN WithinImageFv
)
{
EFI_STATUS Status;
EFI_HANDLE *HandleBuffer;
UINTN HandleCount;
UINTN Index;
EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
#if (PI_SPECIFICATION_VERSION < 0x00010000) //;;## ...AMI_OVERRIDE... Support PI1.x
EFI_FIRMWARE_VOLUME_PROTOCOL *ImageFv;
EFI_FIRMWARE_VOLUME_PROTOCOL *Fv;
#else
EFI_FIRMWARE_VOLUME2_PROTOCOL *ImageFv;
EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;
#endif
if (ImageHandle == NULL && WithinImageFv) {
return EFI_INVALID_PARAMETER;
}
Status = EFI_NOT_FOUND;
ImageFv = NULL;
if (ImageHandle != NULL) {
Status = gBS->HandleProtocol (
ImageHandle,
&gEfiLoadedImageProtocolGuid,
(VOID **) &LoadedImage
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->HandleProtocol (
LoadedImage->DeviceHandle,
#if (PI_SPECIFICATION_VERSION < 0x00010000)
&gEfiFirmwareVolumeProtocolGuid,
#else
&gEfiFirmwareVolume2ProtocolGuid,
#endif
(VOID **) &ImageFv
);
if (!EFI_ERROR (Status)) {
Status = GetImageFromFv (ImageFv, NameGuid, SectionType, Buffer, Size);
}
}
if (Status == EFI_SUCCESS || WithinImageFv) {
return Status;
}
Status = gBS->LocateHandleBuffer (
ByProtocol,
#if (PI_SPECIFICATION_VERSION < 0x00010000)
&gEfiFirmwareVolumeProtocolGuid,
#else
&gEfiFirmwareVolume2ProtocolGuid,
#endif
NULL,
&HandleCount,
&HandleBuffer
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Find desired image in all Fvs
//
for (Index = 0; Index < HandleCount; ++Index) {
Status = gBS->HandleProtocol (
HandleBuffer[Index],
#if (PI_SPECIFICATION_VERSION < 0x00010000)
&gEfiFirmwareVolumeProtocolGuid,
#else
&gEfiFirmwareVolume2ProtocolGuid,
#endif
(VOID**)&Fv
);
if (EFI_ERROR (Status)) {
gBS->FreePool(HandleBuffer);
return Status;
}
if (ImageFv != NULL && Fv == ImageFv) {
continue;
}
Status = GetImageFromFv (Fv, NameGuid, SectionType, Buffer, Size);
if (!EFI_ERROR (Status)) {
break;
}
}
gBS->FreePool(HandleBuffer);
//
// Not found image
//
if (Index == HandleCount) {
return EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
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