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Diffstat (limited to 'EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/GetImage.c')
| -rw-r--r-- | EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/GetImage.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/GetImage.c b/EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/GetImage.c new file mode 100644 index 0000000..c67b665 --- /dev/null +++ b/EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/GetImage.c @@ -0,0 +1,221 @@ +/*++ + +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; +} + |