147 lines
5 KiB
C
147 lines
5 KiB
C
/* Advanced HTTPS OTA example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/event_groups.h"
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#include "esp_system.h"
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#include "esp_event.h"
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#include "esp_log.h"
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#include "esp_ota_ops.h"
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#include "esp_http_client.h"
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#include "esp_https_ota.h"
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#include "nvs.h"
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#include "nvs_flash.h"
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#include "protocol_examples_common.h"
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#if CONFIG_EXAMPLE_CONNECT_WIFI
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#include "esp_wifi.h"
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#endif
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static const char *TAG = "advanced_https_ota_example";
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extern const uint8_t server_cert_pem_start[] asm("_binary_ca_cert_pem_start");
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extern const uint8_t server_cert_pem_end[] asm("_binary_ca_cert_pem_end");
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static esp_err_t validate_image_header(esp_app_desc_t *new_app_info)
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{
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if (new_app_info == NULL) {
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return ESP_ERR_INVALID_ARG;
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}
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const esp_partition_t *running = esp_ota_get_running_partition();
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esp_app_desc_t running_app_info;
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if (esp_ota_get_partition_description(running, &running_app_info) == ESP_OK) {
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ESP_LOGI(TAG, "Running firmware version: %s", running_app_info.version);
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}
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if (memcmp(new_app_info->version, running_app_info.version, sizeof(new_app_info->version)) == 0) {
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ESP_LOGW(TAG, "Current running version is the same as a new. We will not continue the update.");
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return ESP_FAIL;
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}
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return ESP_OK;
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}
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void advanced_ota_example_task(void *pvParameter)
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{
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ESP_LOGI(TAG, "Starting Advanced OTA example");
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esp_err_t ota_finish_err = ESP_OK;
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esp_http_client_config_t config = {
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.url = CONFIG_EXAMPLE_FIRMWARE_UPGRADE_URL,
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.cert_pem = (char *)server_cert_pem_start,
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};
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esp_https_ota_config_t ota_config = {
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.http_config = &config,
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};
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esp_https_ota_handle_t https_ota_handle = NULL;
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esp_err_t err = esp_https_ota_begin(&ota_config, &https_ota_handle);
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "ESP HTTPS OTA Begin failed");
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vTaskDelete(NULL);
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}
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esp_app_desc_t app_desc;
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err = esp_https_ota_get_img_desc(https_ota_handle, &app_desc);
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "esp_https_ota_read_img_desc failed");
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goto ota_end;
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}
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err = validate_image_header(&app_desc);
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "image header verification failed");
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goto ota_end;
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}
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while (1) {
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err = esp_https_ota_perform(https_ota_handle);
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if (err != ESP_ERR_HTTPS_OTA_IN_PROGRESS) {
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break;
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}
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// esp_https_ota_perform returns after every read operation which gives user the ability to
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// monitor the status of OTA upgrade by calling esp_https_ota_get_image_len_read, which gives length of image
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// data read so far.
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ESP_LOGD(TAG, "Image bytes read: %d", esp_https_ota_get_image_len_read(https_ota_handle));
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}
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if (esp_https_ota_is_complete_data_received(https_ota_handle) != true) {
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// the OTA image was not completely received and user can customise the response to this situation.
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ESP_LOGE(TAG, "Complete data was not received.");
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}
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ota_end:
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ota_finish_err = esp_https_ota_finish(https_ota_handle);
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if ((err == ESP_OK) && (ota_finish_err == ESP_OK)) {
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ESP_LOGI(TAG, "ESP_HTTPS_OTA upgrade successful. Rebooting ...");
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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esp_restart();
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} else {
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ESP_LOGE(TAG, "ESP_HTTPS_OTA upgrade failed %d", ota_finish_err);
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}
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while (1) {
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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}
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void app_main(void)
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{
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// Initialize NVS.
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esp_err_t err = nvs_flash_init();
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if (err == ESP_ERR_NVS_NO_FREE_PAGES || err == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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// 1.OTA app partition table has a smaller NVS partition size than the non-OTA
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// partition table. This size mismatch may cause NVS initialization to fail.
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// 2.NVS partition contains data in new format and cannot be recognized by this version of code.
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// If this happens, we erase NVS partition and initialize NVS again.
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ESP_ERROR_CHECK(nvs_flash_erase());
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err = nvs_flash_init();
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}
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ESP_ERROR_CHECK( err );
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esp_netif_init();
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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/* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
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* Read "Establishing Wi-Fi or Ethernet Connection" section in
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* examples/protocols/README.md for more information about this function.
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*/
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ESP_ERROR_CHECK(example_connect());
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#if CONFIG_EXAMPLE_CONNECT_WIFI
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/* Ensure to disable any WiFi power save mode, this allows best throughput
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* and hence timings for overall OTA operation.
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*/
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esp_wifi_set_ps(WIFI_PS_NONE);
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#endif // CONFIG_EXAMPLE_CONNECT_WIFI
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xTaskCreate(&advanced_ota_example_task, "advanced_ota_example_task", 1024 * 8, NULL, 5, NULL);
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}
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