android_image.h

/*
 * This is from the Android Project,
 * Repository: https://android.googlesource.com/platform/system/core/
 * File: mkbootimg/bootimg.h
 * Commit: d162828814b08ada310846a33205befb69ef5799
 *
 * Copyright (C) 2008 The Android Open Source Project
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#ifndef _ANDROID_IMAGE_H_
#define _ANDROID_IMAGE_H_

#define ANDR_BOOT_MAGIC "ANDROID!"
#define ANDR_BOOT_MAGIC_SIZE 8
#define ANDR_BOOT_NAME_SIZE 16
#define ANDR_BOOT_ARGS_SIZE 512
#define ANDR_BOOT_EXTRA_ARGS_SIZE 1024

typedef uint32_t u32;

struct andr_img_hdr {
	char magic[ANDR_BOOT_MAGIC_SIZE];

	u32 kernel_size;	/* size in bytes */
	u32 kernel_addr;	/* physical load addr */

	u32 ramdisk_size;	/* size in bytes */
	u32 ramdisk_addr;	/* physical load addr */

	u32 second_size;	/* size in bytes */
	u32 second_addr;	/* physical load addr */

	u32 tags_addr;		/* physical addr for kernel tags */
	u32 page_size;		/* flash page size we assume */
	u32 header_version;

	/* operating system version and security patch level; for
	 * version "A.B.C" and patch level "Y-M-D":
	 * ver = A << 14 | B << 7 | C         (7 bits for each of A, B, C)
	 * lvl = ((Y - 2000) & 127) << 4 | M  (7 bits for Y, 4 bits for M)
	 * os_version = ver << 11 | lvl */
	u32 os_version;

	char name[ANDR_BOOT_NAME_SIZE]; /* asciiz product name */

	char cmdline[ANDR_BOOT_ARGS_SIZE];

	u32 id[8]; /* timestamp / checksum / sha1 / etc */

	/* Supplemental command line data; kept here to maintain
	 * binary compatibility with older versions of mkbootimg */
	char extra_cmdline[ANDR_BOOT_EXTRA_ARGS_SIZE];
	uint32_t recovery_dtbo_size;   /* size of recovery dtbo image */
	uint64_t recovery_dtbo_offset; /* offset in boot image */
	uint32_t header_size;   /* size of boot image header in bytes */
	u32 secondary_kernel_size;
	u32 secondary_kernel_addr;
} __attribute__((packed));

#endif