diff options
Diffstat (limited to 'EdkModulePkg/Core/Dxe/Image/ImageFile.c')
| -rw-r--r-- | EdkModulePkg/Core/Dxe/Image/ImageFile.c | 499 |
1 files changed, 0 insertions, 499 deletions
diff --git a/EdkModulePkg/Core/Dxe/Image/ImageFile.c b/EdkModulePkg/Core/Dxe/Image/ImageFile.c deleted file mode 100644 index 408688c69f..0000000000 --- a/EdkModulePkg/Core/Dxe/Image/ImageFile.c +++ /dev/null @@ -1,499 +0,0 @@ -/*++
-
-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:
-
- ImageFile.c
-
-
-Abstract:
-
-
-
-
-Revision History
-
---*/
-
-#include <DxeMain.h>
-
-EFI_STATUS
-CoreOpenImageFile (
- IN BOOLEAN BootPolicy,
- IN VOID *SourceBuffer OPTIONAL,
- IN UINTN SourceSize,
- IN OUT EFI_DEVICE_PATH_PROTOCOL *FilePath,
- OUT EFI_HANDLE *DeviceHandle,
- IN IMAGE_FILE_HANDLE *ImageFileHandle,
- OUT UINT32 *AuthenticationStatus
- )
-/*++
-
-Routine Description:
-
- Opens a file for (simple) reading. The simple read abstraction
- will access the file either from a memory copy, from a file
- system interface, or from the load file interface.
-
-Arguments:
-
- BootPolicy - Policy for Open Image File.
- SourceBuffer - Pointer to the memory location containing copy
- of the image to be loaded.
- SourceSize - The size in bytes of SourceBuffer.
- FilePath - The specific file path from which the image is loaded
- DeviceHandle - Pointer to the return device handle.
- ImageFileHandle - Pointer to the image file handle.
- AuthenticationStatus - Pointer to a caller-allocated UINT32 in which the authentication status is returned.
-
-Returns:
-
- EFI_SUCCESS - Image file successfully opened.
-
- EFI_LOAD_ERROR - If the caller passed a copy of the file, and SourceSize is 0.
-
- EFI_INVALID_PARAMETER - File path is not valid.
-
- EFI_NOT_FOUND - File not found.
-
---*/
-{
- EFI_STATUS Status;
- EFI_DEVICE_PATH_PROTOCOL *TempFilePath;
- FILEPATH_DEVICE_PATH *FilePathNode;
- MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FwVolFilePathNode;
- EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume;
- EFI_FILE_HANDLE FileHandle;
- EFI_FILE_HANDLE LastHandle;
- EFI_LOAD_FILE_PROTOCOL *LoadFile;
- EFI_FIRMWARE_VOLUME_PROTOCOL *FwVol;
- EFI_SECTION_TYPE SectionType;
- UINT8 *Pe32Buffer;
- UINTN Pe32BufferSize;
- EFI_FV_FILETYPE Type;
- EFI_FV_FILE_ATTRIBUTES Attrib;
- EFI_FILE_INFO *FileInfo;
- UINTN FileInfoSize;
- EFI_GUID *NameGuid;
-
- *AuthenticationStatus = 0;
- ZeroMem (ImageFileHandle, sizeof (IMAGE_FILE_HANDLE));
- ImageFileHandle->Signature = IMAGE_FILE_HANDLE_SIGNATURE;
-
- //
- // If the caller passed a copy of the file, then just use it
- //
- if (SourceBuffer != NULL) {
- ImageFileHandle->Source = SourceBuffer;
- ImageFileHandle->SourceSize = SourceSize;
- *DeviceHandle = NULL;
- if (SourceSize > 0) {
- Status = EFI_SUCCESS;
- } else {
- Status = EFI_LOAD_ERROR;
- }
- goto Done;
- }
-
- //
- // Make sure FilePath is valid
- //
- if (FilePath == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Check to see if it's in a Firmware Volume
- //
- FwVolFilePathNode = (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *)FilePath;
- Status = CoreDevicePathToInterface (
- &gEfiFirmwareVolumeProtocolGuid,
- (EFI_DEVICE_PATH_PROTOCOL **)&FwVolFilePathNode,
- (VOID*)&FwVol,
- DeviceHandle
- );
- if (!EFI_ERROR (Status)) {
- //
- // For FwVol File system there is only a single file name that is a GUID.
- //
- NameGuid = EfiGetNameGuidFromFwVolDevicePathNode (FwVolFilePathNode);
- if (NameGuid != NULL) {
-
- SectionType = EFI_SECTION_PE32;
- Pe32Buffer = NULL;
- Status = FwVol->ReadSection (
- FwVol,
- NameGuid,
- SectionType,
- 0,
- (VOID **)&Pe32Buffer,
- &Pe32BufferSize,
- AuthenticationStatus
- );
- if (EFI_ERROR (Status)) {
- //
- // Try a raw file, since a PE32 SECTION does not exist
- //
- if (Pe32Buffer != NULL) {
- CoreFreePool (Pe32Buffer);
- *AuthenticationStatus = 0;
- }
- Pe32Buffer = NULL;
- Status = FwVol->ReadFile (
- FwVol,
- NameGuid,
- (VOID **)&Pe32Buffer,
- &Pe32BufferSize,
- &Type,
- &Attrib,
- AuthenticationStatus
- );
- }
-
- if (!EFI_ERROR (Status)) {
- //
- // One of the reads passed so we are done
- //
- ImageFileHandle->Source = Pe32Buffer;
- ImageFileHandle->SourceSize = Pe32BufferSize;
- ImageFileHandle->FreeBuffer = TRUE;
- goto Done;
- }
- }
- }
-
- //
- // Attempt to access the file via a file system interface
- //
- FilePathNode = (FILEPATH_DEVICE_PATH *) FilePath;
- Status = CoreDevicePathToInterface (
- &gEfiSimpleFileSystemProtocolGuid,
- (EFI_DEVICE_PATH_PROTOCOL **)&FilePathNode,
- (VOID*)&Volume,
- DeviceHandle
- );
- if (!EFI_ERROR (Status)) {
- //
- // Open the Volume to get the File System handle
- //
- Status = Volume->OpenVolume (Volume, &FileHandle);
- if (!EFI_ERROR (Status)) {
-
- //
- // Parse each MEDIA_FILEPATH_DP node. There may be more than one, since the
- // directory information and filename can be seperate. The goal is to inch
- // our way down each device path node and close the previous node
- //
- while (!IsDevicePathEnd (&FilePathNode->Header)) {
- if (DevicePathType (&FilePathNode->Header) != MEDIA_DEVICE_PATH ||
- DevicePathSubType (&FilePathNode->Header) != MEDIA_FILEPATH_DP) {
- Status = EFI_UNSUPPORTED;
- }
-
- if (EFI_ERROR (Status)) {
- //
- // Exit loop on Error
- //
- break;
- }
-
- LastHandle = FileHandle;
- FileHandle = NULL;
- Status = LastHandle->Open (
- LastHandle,
- &FileHandle,
- FilePathNode->PathName,
- EFI_FILE_MODE_READ,
- 0
- );
-
- //
- // Close the previous node
- //
- LastHandle->Close (LastHandle);
-
- FilePathNode = (FILEPATH_DEVICE_PATH *) NextDevicePathNode (&FilePathNode->Header);
- }
-
- if (!EFI_ERROR (Status)) {
- //
- // We have found the file. Now we need to read it. Before we can read the file we need to
- // figure out how big the file is.
- //
- FileInfo = NULL;
- FileInfoSize = sizeof (EFI_FILE_INFO);
- while (CoreGrowBuffer (&Status, (VOID **)&FileInfo, FileInfoSize)) {
- //
- // Automatically allocate buffer of the correct size and make the call
- //
- Status = FileHandle->GetInfo (
- FileHandle,
- &gEfiFileInfoGuid,
- &FileInfoSize,
- FileInfo
- );
- }
- if (!EFI_ERROR (Status)) {
- //
- // Allocate space for the file
- //
- ImageFileHandle->Source = CoreAllocateBootServicesPool ((UINTN)FileInfo->FileSize);
- if (ImageFileHandle->Source != NULL) {
- //
- // Read the file into the buffer we allocated
- //
- ImageFileHandle->SourceSize = (UINTN)FileInfo->FileSize;
- ImageFileHandle->FreeBuffer = TRUE;
- Status = FileHandle->Read (FileHandle, &ImageFileHandle->SourceSize, ImageFileHandle->Source);
-
- //
- // Close the file since we are done
- //
- FileHandle->Close (FileHandle);
- } else {
- Status = EFI_OUT_OF_RESOURCES;
- }
-
- goto Done;
- }
- }
- }
- }
-
-
- //
- // Try LoadFile style
- //
-
- TempFilePath = FilePath;
- Status = CoreDevicePathToInterface (
- &gEfiLoadFileProtocolGuid,
- &TempFilePath,
- (VOID*)&LoadFile,
- DeviceHandle
- );
- if (!EFI_ERROR (Status)) {
- //
- // Call LoadFile with the correct buffer size
- //
- while (CoreGrowBuffer (&Status, (VOID **)&ImageFileHandle->Source, ImageFileHandle->SourceSize)) {
- Status = LoadFile->LoadFile (
- LoadFile,
- TempFilePath,
- BootPolicy,
- &ImageFileHandle->SourceSize,
- ImageFileHandle->Source
- );
- //
- // If success or other error happens, stop loop
- //
- if (Status != EFI_BUFFER_TOO_SMALL) {
- break;
- }
- }
-
- if (!EFI_ERROR (Status) || Status == EFI_ALREADY_STARTED) {
- ImageFileHandle->FreeBuffer = TRUE;
- goto Done;
- }
- }
-
- //
- // Nothing else to try
- //
- DEBUG ((EFI_D_LOAD|EFI_D_WARN, "CoreOpenImageFile: Device did not support a known load protocol\n"));
- Status = EFI_NOT_FOUND;
-
-Done:
-
- //
- // If the file was not accessed, clean up
- //
- if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {
- if (ImageFileHandle->FreeBuffer) {
- //
- // Free the source buffer if we allocated it
- //
- CoreFreePool (ImageFileHandle->Source);
- }
- }
-
- return Status;
-}
-
-
-
-EFI_STATUS
-EFIAPI
-CoreReadImageFile (
- IN VOID *UserHandle,
- IN UINTN Offset,
- IN OUT UINTN *ReadSize,
- OUT VOID *Buffer
- )
-/*++
-
-Routine Description:
-
- Read image file (specified by UserHandle) into user specified buffer with specified offset
- and length.
-
-Arguments:
-
- UserHandle - Image file handle
-
- Offset - Offset to the source file
-
- ReadSize - For input, pointer of size to read;
- For output, pointer of size actually read.
-
- Buffer - Buffer to write into
-
-Returns:
-
- EFI_SUCCESS - Successfully read the specified part of file into buffer.
-
---*/
-{
- UINTN EndPosition;
- IMAGE_FILE_HANDLE *FHand;
-
- FHand = (IMAGE_FILE_HANDLE *)UserHandle;
- ASSERT (FHand->Signature == IMAGE_FILE_HANDLE_SIGNATURE);
-
- //
- // Move data from our local copy of the file
- //
- EndPosition = Offset + *ReadSize;
- if (EndPosition > FHand->SourceSize) {
- *ReadSize = (UINT32)(FHand->SourceSize - Offset);
- }
- if (Offset >= FHand->SourceSize) {
- *ReadSize = 0;
- }
-
- CopyMem (Buffer, (CHAR8 *)FHand->Source + Offset, *ReadSize);
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-CoreDevicePathToInterface (
- IN EFI_GUID *Protocol,
- IN EFI_DEVICE_PATH_PROTOCOL **FilePath,
- OUT VOID **Interface,
- OUT EFI_HANDLE *Handle
- )
-/*++
-
-Routine Description:
-
- Search a handle to a device on a specified device path that supports a specified protocol,
- interface of that protocol on that handle is another output.
-
-Arguments:
-
- Protocol - The protocol to search for
-
- FilePath - The specified device path
-
- Interface - Interface of the protocol on the handle
-
- Handle - The handle to the device on the specified device path that supports the protocol.
-
-Returns:
-
- Status code.
-
---*/
-{
- EFI_STATUS Status;
-
- Status = CoreLocateDevicePath (Protocol, FilePath, Handle);
- if (!EFI_ERROR (Status)) {
- Status = CoreHandleProtocol (*Handle, Protocol, Interface);
- }
- return Status;
-}
-
-BOOLEAN
-CoreGrowBuffer (
- IN OUT EFI_STATUS *Status,
- IN OUT VOID **Buffer,
- IN UINTN BufferSize
- )
-/*++
-
-Routine Description:
-
- Helper function called as part of the code needed
- to allocate the proper sized buffer for various
- EFI interfaces.
-
-Arguments:
-
- Status - Current status
-
- Buffer - Current allocated buffer, or NULL
-
- BufferSize - Current buffer size needed
-
-Returns:
-
- TRUE - if the buffer was reallocated and the caller
- should try the API again.
-
- FALSE - buffer could not be allocated and the caller
- should not try the API again.
-
---*/
-{
- BOOLEAN TryAgain;
-
- TryAgain = FALSE;
- //
- // If this is an initial request, buffer will be null with a new buffer size
- //
- if (*Buffer == NULL) {
- *Status = EFI_BUFFER_TOO_SMALL;
- }
-
- if (BufferSize == 0) {
- return TRUE;
- }
-
- //
- // If the status code is "buffer too small", resize the buffer
- //
-
- if (*Status == EFI_BUFFER_TOO_SMALL) {
- if (*Buffer != NULL) {
- CoreFreePool (*Buffer);
- }
-
- *Buffer = CoreAllocateBootServicesPool (BufferSize);
- if (*Buffer != NULL) {
- TryAgain = TRUE;
- } else {
- *Status = EFI_OUT_OF_RESOURCES;
- }
- }
-
- //
- // If there's an error, free the buffer
- //
- if ((!TryAgain) && (EFI_ERROR (*Status)) && (*Buffer)) {
- CoreFreePool (*Buffer);
- *Buffer = NULL;
- }
-
- return TryAgain;
-}
-
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