EmbeddedPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / EmbeddedPkg / Application / AndroidFastboot / AndroidBootImg.c

/** @file\r
\r
  Copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "AndroidFastbootApp.h"\r
\r
// Find the kernel and ramdisk in an Android boot.img.\r
// return EFI_INVALID_PARAMTER if the boot.img is invalid (i.e. doesn't have the\r
//  right magic value),\r
// return EFI_NOT_FOUND if there was no kernel in the boot.img.\r
// Note that the Ramdisk is optional - *Ramdisk won't be touched if it isn't\r
// present, but RamdiskSize will be set to 0.\r
EFI_STATUS\r
ParseAndroidBootImg (\r
  IN  VOID    *BootImg,\r
  OUT VOID   **Kernel,\r
  OUT UINTN   *KernelSize,\r
  OUT VOID   **Ramdisk,\r
  OUT UINTN   *RamdiskSize,\r
  OUT CHAR8   *KernelArgs\r
  )\r
{\r
  ANDROID_BOOTIMG_HEADER   *Header;\r
  UINT8                    *BootImgBytePtr;\r
\r
  // Cast to UINT8 so we can do pointer arithmetic\r
  BootImgBytePtr = (UINT8 *) BootImg;\r
\r
  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;\r
\r
  if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,\r
                    ANDROID_BOOT_MAGIC_LENGTH) != 0) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  if (Header->KernelSize == 0) {\r
    return EFI_NOT_FOUND;\r
  }\r
\r
  ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));\r
\r
  *KernelSize = Header->KernelSize;\r
  *Kernel = BootImgBytePtr + Header->PageSize;\r
  *RamdiskSize = Header->RamdiskSize;\r
\r
  if (Header->RamdiskSize != 0) {\r
    *Ramdisk = (VOID *) (BootImgBytePtr\r
                 + Header->PageSize\r
                 + ALIGN_VALUE (Header->KernelSize, Header->PageSize));\r
  }\r
\r
  AsciiStrnCpyS (KernelArgs, ANDROID_BOOTIMG_KERNEL_ARGS_SIZE, Header->KernelArgs,\r
    ANDROID_BOOTIMG_KERNEL_ARGS_SIZE);\r
\r
  return EFI_SUCCESS;\r
}\r