Exemplo n.º 1
0
EFI_STATUS EFIAPI efi_main(EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *systab) {

	InitializeLib(image_handle, systab);
	EFI_STATUS Status;
	systab->ConOut->ClearScreen(systab->ConOut); // CLEAR!

    EFI_GUID simplefs_guid = SIMPLE_FILE_SYSTEM_PROTOCOL; // a simple file system protocol in efi
	                      // (different from UEFI specification. In specification, this is called EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID )

	EFI_FILE_IO_INTERFACE *simplefs;                      // the simple file system's interface
	                      // (different from UEFI specification. In specification, this is called EFI_SIMPLE_FILE_SYSTEM_PROTOCOL)
	EFI_FILE *root;               //  root directory
	EFI_FILE *dir;
	CHAR16 *dirname=L"\\stories"; // name of the directory where bmp pictures are put

	status=systab->BootServices->LocateProtocol(&simplefs_guid, NULL, (VOID **)&simplefs);
	if(EFI_ERROR(status)) Print(L"locate protocol failed \n");

	status=simplefs->OpenVolume(simplefs, &root);
	if(EFI_ERROR(status)) Print(L"open volume failed\n");

	status=root->Open(root, &dir, dirname, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY);
	if(EFI_ERROR(status)) Print(L"open directory failed\n");

	VOID *buf;
	INT32 index=1;
	status = readFile(dir, index, systab, buf); // Put the contents of 1.story into buf
	Print(L"%s", buf);

    WaitForSingleEvent(ST->ConIn->WaitForKey, 0);
	uefi_call_wrapper(ST->ConIn->ReadKeyStroke, 2, ST->ConIn, &Key);

    return Status;
}
Exemplo n.º 2
0
EFI_STATUS
EFIAPI
EBounceMain (IN EFI_HANDLE           ImageHandle,
             IN EFI_SYSTEM_TABLE     *SystemTable)
{
    EFI_STATUS              Status;
    EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl;
    EFI_CONSOLE_CONTROL_SCREEN_MODE currentMode;
    EFI_LOADED_IMAGE        *SelfLoadedImage;
    EFI_FILE                *RootDir;
    EFI_FILE                *BootFile;
    EFI_DEVICE_PATH         *DevicePath;
    CHAR16                  *DevicePathAsString;
    CHAR16                  DirName[256];
    CHAR16                  FileName[256];
    UINTN                   i, FileNameIndex;
    EFI_HANDLE              LoaderHandle;
    
    InitializeLib(ImageHandle, SystemTable);
    
    // switch to text mode
    if (BS->LocateProtocol(&gEfiConsoleControlProtocolGuid, NULL, &ConsoleControl) == EFI_SUCCESS) {
        ConsoleControl->GetMode(ConsoleControl, &currentMode, NULL, NULL);
        if (currentMode == EfiConsoleControlScreenGraphics)
            ConsoleControl->SetMode(ConsoleControl, EfiConsoleControlScreenText);
    }
    
    /// load elilo.efi or e.efi from the same directory
    
    // get loaded image protocol for ourselves
    if (BS->HandleProtocol(ImageHandle, &LoadedImageProtocol, (VOID*)&SelfLoadedImage) != EFI_SUCCESS) {
        Print(L"Can not retrieve a LoadedImageProtocol handle for ImageHandle\n");
        return EFI_NOT_FOUND;
    }
    
    // open volume
    RootDir = LibOpenRoot(SelfLoadedImage->DeviceHandle);
    if (RootDir == NULL) {
        Print(L"Can't open volume.\n");
        return EFI_NOT_FOUND;
    }
    
    // find the current directory
    DevicePathAsString = DevicePathToStr(SelfLoadedImage->FilePath);
    if (DevicePathAsString != NULL) {
        StrCpy(DirName, DevicePathAsString);
        FreePool(DevicePathAsString);
        for (i = StrLen(DirName) - 1; i > 0 && DirName[i] != '\\'; i--) ;
        DirName[i++] = '\\';
        DirName[i] = 0;
    } else {
        StrCpy(DirName, L"\\");
    }
    
    for (FileNameIndex = 0; FileNames[FileNameIndex]; FileNameIndex++) {
        // build full absolute path name
        StrCpy(FileName, DirName);
        StrCat(FileName, FileNames[FileNameIndex]);
        
        // check for presence of the file
        if (RootDir->Open(RootDir, &BootFile, FileName, EFI_FILE_MODE_READ, 0) != EFI_SUCCESS)
            continue;
        BootFile->Close(BootFile);
        
        // make a full device path for the image file
        DevicePath = FileDevicePath(SelfLoadedImage->DeviceHandle, FileName);
        
        // load the image into memory
        Status = BS->LoadImage(FALSE, ImageHandle, DevicePath, NULL, 0, &LoaderHandle);
        FreePool(DevicePath);
        if (EFI_ERROR(Status)) {
            Print(L"Can not load the file %s\n", FileName);
            return Status;
        }
        
        // start it!
        BS->StartImage(LoaderHandle, NULL, NULL);
        // just in case we get control back...
        break;
    }
    
    return EFI_SUCCESS;
}
Exemplo n.º 3
0
/**
  Dump capsule information from disk.

  @param[in] Fs                  The device path of disk.
  @param[in] DumpCapsuleInfo     The flag to indicate whether to dump the capsule inforomation.

  @retval EFI_SUCCESS            The capsule information is dumped.

**/
EFI_STATUS
DumpCapsuleFromDisk (
  IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL            *Fs,
  IN BOOLEAN                                    DumpCapsuleInfo
  )
{
  EFI_STATUS                                    Status;
  EFI_FILE                                      *Root;
  EFI_FILE                                      *DirHandle;
  EFI_FILE                                      *FileHandle;
  UINTN                                         Index;
  UINTN                                         FileSize;
  VOID                                          *FileBuffer;
  EFI_FILE_INFO                                 **FileInfoBuffer;
  EFI_FILE_INFO                                 *FileInfo;
  UINTN                                         FileCount;
  BOOLEAN                                       NoFile;

  DirHandle       = NULL;
  FileHandle      = NULL;
  Index           = 0;
  FileInfoBuffer  = NULL;
  FileInfo        = NULL;
  FileCount       = 0;
  NoFile          = FALSE;

  Status = Fs->OpenVolume (Fs, &Root);
  if (EFI_ERROR (Status)) {
    Print (L"Cannot open volume. Status = %r\n", Status);
    goto Done;
  }

  Status = Root->Open (Root, &DirHandle, EFI_CAPSULE_FILE_DIRECTORY, EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE , 0);
  if (EFI_ERROR (Status)) {
    Print (L"Cannot open %s. Status = %r\n", EFI_CAPSULE_FILE_DIRECTORY, Status);
    goto Done;
  }

  //
  // Get file count first
  //
  do {
    Status = FileHandleFindFirstFile (DirHandle, &FileInfo);
    if (EFI_ERROR (Status) || FileInfo == NULL) {
      Print (L"Get File Info Fail. Status = %r\n", Status);
      goto Done;
    }

    if ((FileInfo->Attribute & (EFI_FILE_SYSTEM | EFI_FILE_ARCHIVE)) != 0) {
      FileCount++;
    }

    Status = FileHandleFindNextFile (DirHandle, FileInfo, &NoFile);
    if (EFI_ERROR (Status)) {
      Print (L"Get Next File Fail. Status = %r\n", Status);
      goto Done;
    }
  } while (!NoFile);

  if (FileCount == 0) {
    Print (L"Error: No capsule file found!\n");
    Status = EFI_NOT_FOUND;
    goto Done;
  }

  FileInfoBuffer = AllocateZeroPool (sizeof (FileInfo) * FileCount);
  if (FileInfoBuffer == NULL) {
    Status = EFI_OUT_OF_RESOURCES;
    goto Done;
  }
  NoFile = FALSE;

  //
  // Get all file info
  //
  do {
    Status = FileHandleFindFirstFile (DirHandle, &FileInfo);
    if (EFI_ERROR (Status) || FileInfo == NULL) {
      Print (L"Get File Info Fail. Status = %r\n", Status);
      goto Done;
    }

    if ((FileInfo->Attribute & (EFI_FILE_SYSTEM | EFI_FILE_ARCHIVE)) != 0) {
      FileInfoBuffer[Index++] = AllocateCopyPool ((UINTN)FileInfo->Size, FileInfo);
    }

    Status = FileHandleFindNextFile (DirHandle, FileInfo, &NoFile);
    if (EFI_ERROR (Status)) {
      Print (L"Get Next File Fail. Status = %r\n", Status);
      goto Done;
    }
  } while (!NoFile);

  //
  // Sort FileInfoBuffer by alphabet order
  //
  PerformQuickSort (
    FileInfoBuffer,
    FileCount,
    sizeof (FileInfo),
    (SORT_COMPARE) CompareFileNameInAlphabet
    );

  Print (L"The capsules will be performed by following order:\n");

  for (Index = 0; Index < FileCount; Index++) {
    Print (L"  %d.%s\n", Index + 1, FileInfoBuffer[Index]->FileName);
  }

  if (!DumpCapsuleInfo) {
    Status = EFI_SUCCESS;
    goto Done;
  }

  Print(L"The infomation of the capsules:\n");

  for (Index = 0; Index < FileCount; Index++) {
    FileHandle = NULL;
    Status = DirHandle->Open (DirHandle, &FileHandle, FileInfoBuffer[Index]->FileName, EFI_FILE_MODE_READ, 0);
    if (EFI_ERROR (Status)) {
      goto Done;
    }

    Status = FileHandleGetSize (FileHandle, (UINT64 *) &FileSize);
    if (EFI_ERROR (Status)) {
      Print (L"Cannot read file %s. Status = %r\n", FileInfoBuffer[Index]->FileName, Status);
      FileHandleClose (FileHandle);
      goto Done;
    }

    FileBuffer = AllocatePool (FileSize);
    if (FileBuffer == NULL) {
      Status = EFI_OUT_OF_RESOURCES;
      goto Done;
    }

    Status = FileHandleRead (FileHandle, &FileSize, FileBuffer);
    if (EFI_ERROR (Status)) {
      Print (L"Cannot read file %s. Status = %r\n", FileInfoBuffer[Index]->FileName, Status);
      FileHandleClose (FileHandle);
      FreePool (FileBuffer);
      goto Done;
    }

    Print (L"**************************\n");
    Print (L"  %d.%s:\n", Index + 1, FileInfoBuffer[Index]->FileName);
    Print (L"**************************\n");
    DumpCapsuleFromBuffer ((EFI_CAPSULE_HEADER *) FileBuffer);
    FileHandleClose (FileHandle);
    FreePool (FileBuffer);
  }

Done:
  if (FileInfoBuffer != NULL) {
    for (Index = 0; Index < FileCount; Index++) {
      if (FileInfoBuffer[Index] != NULL) {
        FreePool (FileInfoBuffer[Index]);
      }
    }
    FreePool (FileInfoBuffer);
  }

  return Status;
}