diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/EmbeddedPkg/Application/AndroidFastboot/AndroidBootImg.c | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/EmbeddedPkg/Application/AndroidFastboot/AndroidBootImg.c')
| -rw-r--r-- | roms/edk2/EmbeddedPkg/Application/AndroidFastboot/AndroidBootImg.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/roms/edk2/EmbeddedPkg/Application/AndroidFastboot/AndroidBootImg.c b/roms/edk2/EmbeddedPkg/Application/AndroidFastboot/AndroidBootImg.c new file mode 100644 index 000000000..54b7bee16 --- /dev/null +++ b/roms/edk2/EmbeddedPkg/Application/AndroidFastboot/AndroidBootImg.c @@ -0,0 +1,60 @@ +/** @file
+
+ Copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "AndroidFastbootApp.h"
+
+// Find the kernel and ramdisk in an Android boot.img.
+// return EFI_INVALID_PARAMETER if the boot.img is invalid (i.e. doesn't have the
+// right magic value),
+// return EFI_NOT_FOUND if there was no kernel in the boot.img.
+// Note that the Ramdisk is optional - *Ramdisk won't be touched if it isn't
+// present, but RamdiskSize will be set to 0.
+EFI_STATUS
+ParseAndroidBootImg (
+ IN VOID *BootImg,
+ OUT VOID **Kernel,
+ OUT UINTN *KernelSize,
+ OUT VOID **Ramdisk,
+ OUT UINTN *RamdiskSize,
+ OUT CHAR8 *KernelArgs
+ )
+{
+ ANDROID_BOOTIMG_HEADER *Header;
+ UINT8 *BootImgBytePtr;
+
+ // Cast to UINT8 so we can do pointer arithmetic
+ BootImgBytePtr = (UINT8 *) BootImg;
+
+ Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
+
+ if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,
+ ANDROID_BOOT_MAGIC_LENGTH) != 0) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (Header->KernelSize == 0) {
+ return EFI_NOT_FOUND;
+ }
+
+ ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));
+
+ *KernelSize = Header->KernelSize;
+ *Kernel = BootImgBytePtr + Header->PageSize;
+ *RamdiskSize = Header->RamdiskSize;
+
+ if (Header->RamdiskSize != 0) {
+ *Ramdisk = (VOID *) (BootImgBytePtr
+ + Header->PageSize
+ + ALIGN_VALUE (Header->KernelSize, Header->PageSize));
+ }
+
+ AsciiStrnCpyS (KernelArgs, ANDROID_BOOTIMG_KERNEL_ARGS_SIZE, Header->KernelArgs,
+ ANDROID_BOOTIMG_KERNEL_ARGS_SIZE);
+
+ return EFI_SUCCESS;
+}
|