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/*
* This Source Code Form is subject to the terms of the Mozilla Public License,
* v. 2.0. If a copy of the MPL was not distributed with this file, You can
* obtain one at https://mozilla.org/MPL/2.0/.
*/
#include <stdbool.h>
#include <stdint.h>
#include <zephyr/dfu/flash_img.h>
#include <zephyr/logging/log.h>
#include <zephyr/net/http/server.h>
#include <zephyr/net/http/service.h>
#include <zephyr/net/http/status.h>
#include <zephyr/storage/flash_map.h>
LOG_MODULE_REGISTER(update);
static int update_handler(
struct http_client_ctx *client,
enum http_data_status status,
const struct http_request_ctx *request_ctx,
struct http_response_ctx *response_ctx,
void *user_data
) {
static size_t processed;
static struct flash_img_context flash_img_context;
int ret;
if (status == HTTP_SERVER_DATA_ABORTED) {
LOG_WRN("Transaction aborted after %zd bytes.", processed);
processed = 0;
return 0;
}
bool is_first_call = processed == 0;
if (is_first_call == true) {
uint8_t upload_slot = flash_img_get_upload_slot();
LOG_INF("Handling upload to flash slot %d", upload_slot);
const struct flash_area *fa;
ret = flash_area_open(upload_slot, &fa);
if (ret < 0) {
LOG_ERR("Failed to open flash area (%d)", ret);
return ret;
}
ret = flash_area_erase(fa, 0, FIXED_PARTITION_SIZE(slot1_partition));
flash_area_close(fa);
if (ret < 0) {
LOG_ERR("Failed to erase flash area (%d)", ret);
return ret;
}
ret = flash_img_init_id(&flash_img_context, upload_slot);
if (ret < 0) {
LOG_ERR("Failed to init flash image context (%d)", ret);
return ret;
}
}
ret = flash_img_buffered_write(&flash_img_context, request_ctx->data,
request_ctx->data_len, true);
if (ret < 0) {
LOG_ERR("Failed to write data to flash (%d)", ret);
return ret;
}
processed += request_ctx->data_len;
if (status == HTTP_SERVER_DATA_FINAL) {
size_t written = flash_img_bytes_written(&flash_img_context);
if (written != processed) {
LOG_ERR("Processed %zd octets but wrote %zd", processed, written);
return ret;
}
LOG_INF("Handled update request receiving %zd octets.", processed);
processed = 0;
}
return 0;
}
static struct http_resource_detail_dynamic update_resource_detail = {
.common = {
.type = HTTP_RESOURCE_TYPE_DYNAMIC,
.bitmask_of_supported_http_methods = BIT(HTTP_PUT),
},
.cb = update_handler,
.user_data = NULL,
};
HTTP_RESOURCE_DEFINE(update_resource, http_service, "/update", &update_resource_detail);
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