renamed 'sta_to_eth' example to 'sta2eth'

examples/network/sta2eth/main/scheme_generic_httpd.c

@@ -0,0 +1,91 @@
+/*
+ * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Unlicense OR CC0-1.0
+ */
+
+#include "sdkconfig.h"
+#include <esp_log.h>
+#include <esp_err.h>
+#include <wifi_provisioning/manager.h>
+#include <protocomm.h>
+#include <protocomm_httpd.h>
+
+static const char *TAG = "wifi_prov_scheme_httpd";
+
+static esp_err_t prov_start(protocomm_t *pc, void *config)
+{
+    if (!pc) {
+        ESP_LOGE(TAG, "Protocomm handle cannot be null");
+        return ESP_ERR_INVALID_ARG;
+    }
+
+    if (!config) {
+        ESP_LOGE(TAG, "Cannot start with null configuration");
+        return ESP_ERR_INVALID_ARG;
+    }
+    protocomm_httpd_config_t default_config = {
+        .data = {
+            .config = PROTOCOMM_HTTPD_DEFAULT_CONFIG()
+        }
+    };
+
+    /* Start protocomm server on top of HTTP */
+    esp_err_t err = protocomm_httpd_start(pc, &default_config);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "Failed to start protocomm HTTP server");
+        return err;
+    }
+
+    return ESP_OK;
+}
+
+static esp_err_t prov_stop(protocomm_t *pc)
+{
+    esp_err_t err = protocomm_httpd_stop(pc);
+    if (err != ESP_OK) {
+        ESP_LOGW(TAG, "Error occurred while stopping protocomm_httpd");
+    }
+
+    return err;
+}
+
+/**
+ * @brief Creates a configuration for this custom provisioning scheme.
+ *
+ * We don't need to pass any config option at this moment, so we create
+ * a dummy configuration since provisioning manager check for non-nullptr.
+ * If needed we can extend this scheme to provide some options for httpd
+ * or wifi provisioning.
+ */
+static void *new_config(void)
+{
+    return (void *)1;
+}
+
+static void delete_config(void *config)
+{
+}
+
+static esp_err_t set_config_service(void *config, const char *service_name, const char *service_key)
+{
+    return ESP_OK;
+}
+
+static esp_err_t set_config_endpoint(void *config, const char *endpoint_name, uint16_t uuid)
+{
+    return ESP_OK;
+}
+
+/**
+ * @brief Creating a generic HTTPD scheme
+ */
+const wifi_prov_scheme_t wifi_prov_scheme_httpd = {
+    .prov_start          = prov_start,
+    .prov_stop           = prov_stop,
+    .new_config          = new_config,
+    .delete_config       = delete_config,
+    .set_config_service  = set_config_service,
+    .set_config_endpoint = set_config_endpoint,
+    .wifi_mode           = WIFI_MODE_STA
+};