mirror of https://github.com/acidanthera/audk.git
87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/** @file
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*
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* Copyright (c) 2011, ARM Limited. All rights reserved.
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*
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* This program and the accompanying materials
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* are licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*
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**/
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#include "BdsInternal.h"
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EFI_STATUS BdsLoadFileFromSimpleFileSystem(
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IN EFI_HANDLE Handle,
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IN CHAR16 *FilePath,
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OUT BDS_FILE *File
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) {
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EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *FsProtocol;
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EFI_FILE_PROTOCOL *Fs;
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EFI_STATUS Status;
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EFI_FILE_PROTOCOL *FileHandle = NULL;
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if (File == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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Status = gBS->HandleProtocol(Handle,&gEfiSimpleFileSystemProtocolGuid, (VOID **)&FsProtocol);
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if (EFI_ERROR(Status)) {
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return Status;
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}
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//Try to Open the volume and get root directory
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Status = FsProtocol->OpenVolume(FsProtocol, &Fs);
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if (EFI_ERROR(Status)) {
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return Status;
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}
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Status = Fs->Open(Fs, &FileHandle, FilePath, EFI_FILE_MODE_READ, 0);
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File->Type = BDS_FILETYPE_FS;
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File->FilePath = FilePath;
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File->File.Fs.Handle = FileHandle;
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return Status;
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}
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EFI_STATUS BdsCopyRawFileToRuntimeMemoryFS(
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IN EFI_FILE_PROTOCOL *File,
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OUT VOID **FileImage,
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OUT UINTN *FileSize
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) {
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EFI_FILE_INFO *FileInfo;
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UINTN Size;
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VOID* Image;
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EFI_STATUS Status;
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Size = 0;
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File->GetInfo(File, &gEfiFileInfoGuid, &Size, NULL);
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FileInfo = AllocatePool (Size);
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Status = File->GetInfo(File, &gEfiFileInfoGuid, &Size, FileInfo);
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if (EFI_ERROR(Status)) {
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return Status;
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}
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// Get the file size
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Size = FileInfo->FileSize;
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if (FileSize) {
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*FileSize = Size;
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}
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FreePool(FileInfo);
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Image = AllocateRuntimePool(Size);
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if (Image == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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Status = File->Read(File, &Size, Image);
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if (!EFI_ERROR(Status)) {
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*FileImage = Image;
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}
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return Status;
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}
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