mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 05:04:26 +00:00
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/* SPDX-License-Identifier: MIT */
|
|
/*
|
|
* Copyright (C) 2016 The Android Open Source Project
|
|
*/
|
|
|
|
#if !defined(AVB_INSIDE_LIBAVB_H) && !defined(AVB_COMPILATION)
|
|
#error "Never include this file directly, include libavb.h instead."
|
|
#endif
|
|
|
|
#ifndef AVB_FOOTER_H_
|
|
#define AVB_FOOTER_H_
|
|
|
|
#include "avb_sysdeps.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Magic for the footer. */
|
|
#define AVB_FOOTER_MAGIC "AVBf"
|
|
#define AVB_FOOTER_MAGIC_LEN 4
|
|
|
|
/* Size of the footer. */
|
|
#define AVB_FOOTER_SIZE 64
|
|
|
|
/* The current footer version used - keep in sync with avbtool. */
|
|
#define AVB_FOOTER_VERSION_MAJOR 1
|
|
#define AVB_FOOTER_VERSION_MINOR 0
|
|
|
|
/* The struct used as a footer used on partitions, used to find the
|
|
* AvbVBMetaImageHeader struct. This struct is always stored at the
|
|
* end of a partition.
|
|
*/
|
|
typedef struct AvbFooter {
|
|
/* 0: Four bytes equal to "AVBf" (AVB_FOOTER_MAGIC). */
|
|
uint8_t magic[AVB_FOOTER_MAGIC_LEN];
|
|
/* 4: The major version of the footer struct. */
|
|
uint32_t version_major;
|
|
/* 8: The minor version of the footer struct. */
|
|
uint32_t version_minor;
|
|
|
|
/* 12: The original size of the image on the partition. */
|
|
uint64_t original_image_size;
|
|
|
|
/* 20: The offset of the |AvbVBMetaImageHeader| struct. */
|
|
uint64_t vbmeta_offset;
|
|
|
|
/* 28: The size of the vbmeta block (header + auth + aux blocks). */
|
|
uint64_t vbmeta_size;
|
|
|
|
/* 36: Padding to ensure struct is size AVB_FOOTER_SIZE bytes. This
|
|
* must be set to zeroes.
|
|
*/
|
|
uint8_t reserved[28];
|
|
} AVB_ATTR_PACKED AvbFooter;
|
|
|
|
/* Copies |src| to |dest| and validates, byte-swapping fields in the
|
|
* process if needed. Returns true if valid, false if invalid.
|
|
*/
|
|
bool avb_footer_validate_and_byteswap(const AvbFooter* src, AvbFooter* dest)
|
|
AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* AVB_FOOTER_H_ */
|