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added sha256 of configuration structure

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This commit is contained in:
Bogdan Pilyugin 2023-01-11 16:54:24 +02:00
parent fef822aea7
commit cdef3b558c
1 changed files with 29 additions and 1 deletions
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30
src/WebGUIAppMain.c
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@ -39,6 +39,8 @@
#include "Helpers.h"
#include "HTTPServer.h"
#include "mbedtls/md.h"
#define STORAGE_NAMESPACE "storage"
#define TAG "SystemConfiguration"
@ -71,6 +73,8 @@ static void InitSysIO(void);
static void InitSysSPI(void);
static void InitSysI2C(void);
static esp_err_t SHA256SysConfig(SYS_CONFIG *SysConf, unsigned char *res);
esp_err_t spi_device_polling_transmit_synchronized(spi_device_handle_t handle, spi_transaction_t *trans_desc)
{
esp_err_t res;
@ -403,6 +407,19 @@ esp_err_t WriteNVSSysConfig(SYS_CONFIG *SysConf)
if (err != ESP_OK)
return err;
unsigned char sha256[32];
unsigned char sha_print[32 * 2 + 1];
SHA256SysConfig(SysConf, sha256);
BytesToStr(sha256, sha_print, 32);
sha_print[32 * 2] = 0x00;
ESP_LOGI(TAG, "SHA256 of structure to write is %s", sha_print);
err = nvs_set_blob(my_handle, "sys_conf_sha256", sha256, 32);
if (err != ESP_OK)
return err;
// Commit
err = nvs_commit(my_handle);
if (err != ESP_OK)
@ -466,5 +483,16 @@ void SetUserAppNeedReset(bool res)
isUserAppNeedReset = res;
}
static esp_err_t SHA256SysConfig(SYS_CONFIG *SysConf, unsigned char *res)
{
mbedtls_md_context_t ctx;
mbedtls_md_type_t md_type = MBEDTLS_MD_SHA256;
mbedtls_md_init(&ctx);
mbedtls_md_setup(&ctx, mbedtls_md_info_from_type(md_type), 0);
mbedtls_md_starts(&ctx);
mbedtls_md_update(&ctx, (const unsigned char *) &SysConf, sizeof(SYS_CONFIG));
mbedtls_md_finish(&ctx, res);
mbedtls_md_free(&ctx);
return ESP_OK;
}