nuttx-apps/examples/mcuboot/swap_test/version_main.c
Gerson Fernando Budke 836cd05526 examples: Add mcuboot Swap Test example
This example demonstrate swap between two valid images. Instructions
are available at readme.md file inside project directory.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
2022-02-02 17:38:29 +08:00

128 lines
4.1 KiB
C

/****************************************************************************
* apps/examples/mcuboot/swap_test/version_main.c
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <endian.h>
#include <errno.h>
#include <stdio.h>
#include <bootutil/bootutil_public.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define BOOT_HEADER_MAGIC_V1 0x96f3b83d
#define BOOT_HEADER_SIZE_V1 32
/****************************************************************************
* Private Types
****************************************************************************/
begin_packed_struct struct mcuboot_raw_version_v1_s
{
uint8_t major;
uint8_t minor;
uint16_t revision;
uint32_t build_num;
} end_packed_struct;
begin_packed_struct struct mcuboot_raw_header_v1_s
{
uint32_t header_magic;
uint32_t image_load_address;
uint16_t header_size;
uint16_t pad;
uint32_t image_size;
uint32_t image_flags;
struct mcuboot_raw_version_v1_s version;
uint32_t pad2;
} end_packed_struct;
/****************************************************************************
* Private Functions
****************************************************************************/
static int boot_read_v1_header(uint8_t area_id,
struct mcuboot_raw_header_v1_s *raw_header)
{
const struct flash_area *fa;
int rc;
rc = flash_area_open(area_id, &fa);
if (rc)
{
return rc;
}
rc = flash_area_read(fa, 0, raw_header,
sizeof(struct mcuboot_raw_header_v1_s));
flash_area_close(fa);
if (rc)
{
return rc;
}
raw_header->header_magic = le32toh(raw_header->header_magic);
raw_header->image_load_address = le32toh(raw_header->image_load_address);
raw_header->header_size = le16toh(raw_header->header_size);
raw_header->image_size = le32toh(raw_header->image_size);
raw_header->image_flags = le32toh(raw_header->image_flags);
raw_header->version.revision = le16toh(raw_header->version.revision);
raw_header->version.build_num = le32toh(raw_header->version.build_num);
if ((raw_header->header_magic != BOOT_HEADER_MAGIC_V1)
|| (raw_header->header_size < BOOT_HEADER_SIZE_V1))
{
return -EIO;
}
return 0;
}
/****************************************************************************
* mcuboot_version_main
****************************************************************************/
int main(int argc, FAR char *argv[])
{
int rc;
struct mcuboot_raw_header_v1_s raw_header;
rc = boot_read_v1_header(0, &raw_header);
if (rc)
{
printf("Only header version 1 can be read. Abort!\n");
return rc;
}
printf("Image version %d.%d.%d.%ld\n", raw_header.version.major,
raw_header.version.minor,
raw_header.version.revision,
raw_header.version.build_num);
return 0;
}