avb_chain_partition_descriptor.h
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/* 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_CHAIN_PARTITION_DESCRIPTOR_H_
#define AVB_CHAIN_PARTITION_DESCRIPTOR_H_
#include "avb_descriptor.h"
#ifdef __cplusplus
extern "C" {
#endif
/* A descriptor containing a pointer to signed integrity data stored
* on another partition. The descriptor contains the partition name in
* question (without the A/B suffix), the public key used to sign the
* integrity data, and rollback index location to use for rollback
* protection.
*
* Following this struct are |partition_name_len| bytes of the
* partition name (UTF-8 encoded) and |public_key_len| bytes of the
* public key.
*
* The |reserved| field is for future expansion and must be set to NUL
* bytes.
*/
typedef struct AvbChainPartitionDescriptor {
AvbDescriptor parent_descriptor;
uint32_t rollback_index_location;
uint32_t partition_name_len;
uint32_t public_key_len;
uint8_t reserved[64];
} AVB_ATTR_PACKED AvbChainPartitionDescriptor;
/* Copies |src| to |dest| and validates, byte-swapping fields in the
* process if needed. Returns true if valid, false if invalid.
*
* Data following the struct is not validated nor copied.
*/
bool avb_chain_partition_descriptor_validate_and_byteswap(
const AvbChainPartitionDescriptor* src,
AvbChainPartitionDescriptor* dest) AVB_ATTR_WARN_UNUSED_RESULT;
#ifdef __cplusplus
}
#endif
#endif /* AVB_CHAIN_PARTITION_DESCRIPTOR_H_ */