LXR uboot/lib/libavb/avb_chain_partition

   1/* SPDX-License-Identifier: MIT */
   2/*
   3 * Copyright (C) 2016 The Android Open Source Project
   4 */
   5
   6#if !defined(AVB_INSIDE_LIBAVB_H) && !defined(AVB_COMPILATION)
   7#error "Never include this file directly, include libavb.h instead."
   8#endif
   9
  10#ifndef AVB_CHAIN_PARTITION_DESCRIPTOR_H_
  11#define AVB_CHAIN_PARTITION_DESCRIPTOR_H_
  12
  13#include "avb_descriptor.h"
  14
  15#ifdef __cplusplus
  16extern "C" {
  17#endif
  18
  19/* A descriptor containing a pointer to signed integrity data stored
  20 * on another partition. The descriptor contains the partition name in
  21 * question (without the A/B suffix), the public key used to sign the
  22 * integrity data, and rollback index location to use for rollback
  23 * protection.
  24 *
  25 * Following this struct are |partition_name_len| bytes of the
  26 * partition name (UTF-8 encoded) and |public_key_len| bytes of the
  27 * public key.
  28 *
  29 * The |reserved| field is for future expansion and must be set to NUL
  30 * bytes.
  31 */
  32typedef struct AvbChainPartitionDescriptor {
  33  AvbDescriptor parent_descriptor;
  34  uint32_t rollback_index_location;
  35  uint32_t partition_name_len;
  36  uint32_t public_key_len;
  37  uint8_t reserved[64];
  38} AVB_ATTR_PACKED AvbChainPartitionDescriptor;
  39
  40/* Copies |src| to |dest| and validates, byte-swapping fields in the
  41 * process if needed. Returns true if valid, false if invalid.
  42 *
  43 * Data following the struct is not validated nor copied.
  44 */
  45bool avb_chain_partition_descriptor_validate_and_byteswap(
  46    const AvbChainPartitionDescriptor* src,
  47    AvbChainPartitionDescriptor* dest) AVB_ATTR_WARN_UNUSED_RESULT;
  48
  49#ifdef __cplusplus
  50}
  51#endif
  52
  53#endif /* AVB_CHAIN_PARTITION_DESCRIPTOR_H_ */
  54