/* * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include #include #include "esp_system.h" #include "nvs_flash.h" #include "esp_event.h" #include "esp_netif.h" #include "esp_log.h" #include "protocol_examples_common.h" #include "mdns.h" static const char *TAG = "MDNS_TEST"; void mdns_test(char *line); static void get_string(char *line, size_t size) { int count = 0; while (count < size) { int c = fgetc(stdin); if (c == '\n') { line[count] = '\0'; break; } else if (c > 0 && c < 127) { line[count] = c; ++count; } vTaskDelay(50 / portTICK_PERIOD_MS); } } /** Generate host name based on sdkconfig, optionally adding a portion of MAC address to it. * @return host name string allocated from the heap */ static char* generate_hostname(void) { #ifndef CONFIG_TEST_MDNS_ADD_MAC_TO_HOSTNAME return strdup(CONFIG_TEST_MDNS_HOSTNAME); #else uint8_t mac[6]; char *hostname; esp_read_mac(mac, ESP_MAC_WIFI_STA); if (-1 == asprintf(&hostname, "%s-%02X%02X%02X", CONFIG_TEST_MDNS_HOSTNAME, mac[3], mac[4], mac[5])) { abort(); } return hostname; #endif } static void initialise_mdns(void) { char * hostname = generate_hostname(); //initialize mDNS ESP_ERROR_CHECK( mdns_init() ); //set mDNS hostname (required if you want to advertise services) ESP_ERROR_CHECK( mdns_hostname_set(hostname) ); ESP_LOGI(TAG, "mdns hostname set to: [%s]", hostname); //set default mDNS instance name ESP_ERROR_CHECK( mdns_instance_name_set(CONFIG_TEST_MDNS_INSTANCE) ); //initialize service ESP_ERROR_CHECK( mdns_service_add("ESP32-WebServer", "_http", "_tcp", 80, NULL, 0) ); #if CONFIG_TEST_MDNS_PUBLISH_DELEGATE_HOST char *delegated_hostname; if (-1 == asprintf(&delegated_hostname, "%s-delegated", hostname)) { abort(); } mdns_ip_addr_t addr4, addr6; esp_netif_str_to_ip4("10.0.0.1", &addr4.addr.u_addr.ip4); addr4.addr.type = ESP_IPADDR_TYPE_V4; esp_netif_str_to_ip6("fd11:22::1", &addr6.addr.u_addr.ip6); addr6.addr.type = ESP_IPADDR_TYPE_V6; addr4.next = &addr6; addr6.next = NULL; ESP_ERROR_CHECK( mdns_delegate_hostname_add(delegated_hostname, &addr4) ); ESP_ERROR_CHECK( mdns_service_add_for_host("test0", "_http", "_tcp", delegated_hostname, 1234, NULL, 0) ); free(delegated_hostname); #endif // CONFIG_TEST_MDNS_PUBLISH_DELEGATE_HOST ESP_ERROR_CHECK( mdns_service_subtype_add_for_host("ESP32-WebServer", "_http", "_tcp", NULL, "_server") ); free(hostname); } void app_main(void) { char line[256]; ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size()); ESP_LOGI(TAG, "[APP] IDF version: %s", esp_get_idf_version()); ESP_ERROR_CHECK(nvs_flash_init()); ESP_ERROR_CHECK(esp_netif_init()); ESP_ERROR_CHECK(esp_event_loop_create_default()); initialise_mdns(); /* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig. * Read "Establishing Wi-Fi or Ethernet Connection" section in * examples/protocols/README.md for more information about this function. */ ESP_ERROR_CHECK(example_connect()); while (1) { get_string(line, sizeof(line)); mdns_test(line); continue; } }