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bootutil_public: added hook for fetch image swap state 

Added hook which allows to override boot_read_swap_state_by_id()
routine for the primary slot.

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
This commit is contained in:
Andrzej Puzdrowski 2021-07-09 12:31:35 +02:00 committed by David Brown
parent b8f3969f38
commit dea293ad4c
2 changed files with 61 additions and 2 deletions
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52
boot/bootutil/include/bootutil/boot_public_hooks.h Normal file
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@ -0,0 +1,52 @@
/*
* SPDX-License-Identifier: Apache-2.0
*
* Copyright (c) 2021 Nordic Semiconductor ASA
*
* Original license:
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/**
* @file
* @brief Hooks definition implementation API
*
* This file contains API interface definition for hooks which can be
* implemented for overide some of MCUboot's native routines.
*/
#ifndef H_BOOTUTIL_PUBLIC_HOOKS
#define H_BOOTUTIL_PUBLIC_HOOKS
#include "bootutil/boot_hooks.h"
/** Hook for provide primary image swap state.
*
* @param img_index the index of the image pair
* @param state image swap state structure to be populated
*
* @retval 0: header was read/populated
* FIH_FAILURE: image is invalid,
* BOOT_HOOK_REGULAR if hook not implemented for the image-slot,
* othervise an error-code value.
*/
int boot_read_swap_state_primary_slot_hook(int image_index,
struct boot_swap_state *state);
#endif /*H_BOOTUTIL_PUBLIC_HOOKS*/

7
boot/bootutil/src/bootutil_public.c
View File

@ -50,6 +50,8 @@
#include "bootutil/enc_key_public.h"
#endif
#include "bootutil/boot_public_hooks.h"
#ifdef CONFIG_MCUBOOT
BOOT_LOG_MODULE_DECLARE(mcuboot);
#else
@ -418,8 +420,13 @@ boot_swap_type_multi(int image_index)
int rc;
size_t i;
rc = BOOT_HOOK_CALL(boot_read_swap_state_primary_slot_hook,
BOOT_HOOK_REGULAR, image_index, &primary_slot);
if (rc == BOOT_HOOK_REGULAR)
{
rc = boot_read_swap_state_by_id(FLASH_AREA_IMAGE_PRIMARY(image_index),
&primary_slot);
}
if (rc) {
return BOOT_SWAP_TYPE_PANIC;
}