mirror of
https://github.com/espressif/esp-protocols.git
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mdns: add mdns delegation
This allows publishing mdns services for other devices. * Original commit: espressif/esp-idf@401ff56cc1
This commit is contained in:
Jiacheng Guo
committed by
suren-gabrielyan-espressif
suren-gabrielyan-espressif
parent
b62b4b3e25
commit
1eb5df9780
@ -24,34 +24,47 @@
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#define EXAMPLE_BUTTON_GPIO 0
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static const char *TAG = "mdns-test";
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static char* generate_hostname(void);
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static char *generate_hostname(void);
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#if CONFIG_MDNS_RESOLVE_TEST_SERVICES == 1
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static void query_mdns_host_with_gethostbyname(char * host);
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static void query_mdns_host_with_getaddrinfo(char * host);
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static void query_mdns_host_with_gethostbyname(char *host);
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static void query_mdns_host_with_getaddrinfo(char *host);
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#endif
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static void initialise_mdns(void)
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{
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char* hostname = generate_hostname();
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printf("generate_hostname\n");
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char *hostname = generate_hostname();
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//initialize mDNS
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printf("mdns_init\n");
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ESP_ERROR_CHECK( mdns_init() );
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printf("mdns_hostname_set\n");
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//set mDNS hostname (required if you want to advertise services)
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ESP_ERROR_CHECK( mdns_hostname_set(hostname) );
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ESP_LOGI(TAG, "mdns hostname set to: [%s]", hostname);
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//set default mDNS instance name
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printf("mdns_instance_name_set\n");
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ESP_ERROR_CHECK( mdns_instance_name_set(EXAMPLE_MDNS_INSTANCE) );
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//structure with TXT records
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mdns_txt_item_t serviceTxtData[3] = {
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{"board","esp32"},
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{"u","user"},
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{"p","password"}
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{"board", "esp32"},
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{"u", "user"},
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{"p", "password"}
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};
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//initialize service
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printf("mdns_service_add\n");
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ESP_ERROR_CHECK( mdns_service_add("ESP32-WebServer", "_http", "_tcp", 80, serviceTxtData, 3) );
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esp_ip_addr_t addr;
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ip6_addr_t ip6_addr;
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ip6addr_aton("fe80::849b:bb01:415c:b722", &ip6_addr);
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addr.type = ESP_IPADDR_TYPE_V6;
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memcpy(addr.u_addr.ip6.addr, ip6_addr.addr, sizeof(ip6_addr.addr));
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ESP_ERROR_CHECK(mdns_delegate_hostname_add("test-device", &addr));
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ESP_ERROR_CHECK( mdns_service_add_custom_host("test0", "_http", "_tcp", "test-device", 1234, serviceTxtData, 3) );
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//add another TXT item
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printf("mdns_service_txt_item_set\n");
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ESP_ERROR_CHECK( mdns_service_txt_item_set("_http", "_tcp", "path", "/foobar") );
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//change TXT item value
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ESP_ERROR_CHECK( mdns_service_txt_item_set("_http", "_tcp", "u", "admin") );
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@ -59,33 +72,34 @@ static void initialise_mdns(void)
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}
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/* these strings match tcpip_adapter_if_t enumeration */
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static const char * if_str[] = {"STA", "AP", "ETH", "MAX"};
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static const char *if_str[] = {"STA", "AP", "ETH", "MAX"};
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/* these strings match mdns_ip_protocol_t enumeration */
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static const char * ip_protocol_str[] = {"V4", "V6", "MAX"};
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static const char *ip_protocol_str[] = {"V4", "V6", "MAX"};
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static void mdns_print_results(mdns_result_t * results){
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mdns_result_t * r = results;
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mdns_ip_addr_t * a = NULL;
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static void mdns_print_results(mdns_result_t *results)
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{
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mdns_result_t *r = results;
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mdns_ip_addr_t *a = NULL;
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int i = 1, t;
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while(r){
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while (r) {
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printf("%d: Interface: %s, Type: %s\n", i++, if_str[r->tcpip_if], ip_protocol_str[r->ip_protocol]);
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if(r->instance_name){
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if (r->instance_name) {
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printf(" PTR : %s\n", r->instance_name);
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}
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if(r->hostname){
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if (r->hostname) {
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printf(" SRV : %s.local:%u\n", r->hostname, r->port);
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}
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if(r->txt_count){
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if (r->txt_count) {
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printf(" TXT : [%u] ", r->txt_count);
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for(t=0; t<r->txt_count; t++){
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printf("%s=%s; ", r->txt[t].key, r->txt[t].value?r->txt[t].value:"NULL");
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for (t = 0; t < r->txt_count; t++) {
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printf("%s=%s; ", r->txt[t].key, r->txt[t].value ? r->txt[t].value : "NULL");
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}
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printf("\n");
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}
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a = r->addr;
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while(a){
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if(a->addr.type == ESP_IPADDR_TYPE_V6){
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while (a) {
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if (a->addr.type == ESP_IPADDR_TYPE_V6) {
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printf(" AAAA: " IPV6STR "\n", IPV62STR(a->addr.u_addr.ip6));
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} else {
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printf(" A : " IPSTR "\n", IP2STR(&(a->addr.u_addr.ip4)));
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@ -97,17 +111,17 @@ static void mdns_print_results(mdns_result_t * results){
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}
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static void query_mdns_service(const char * service_name, const char * proto)
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static void query_mdns_service(const char *service_name, const char *proto)
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{
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ESP_LOGI(TAG, "Query PTR: %s.%s.local", service_name, proto);
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mdns_result_t * results = NULL;
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mdns_result_t *results = NULL;
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esp_err_t err = mdns_query_ptr(service_name, proto, 3000, 20, &results);
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if(err){
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if (err) {
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ESP_LOGE(TAG, "Query Failed: %s", esp_err_to_name(err));
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return;
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}
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if(!results){
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if (!results) {
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ESP_LOGW(TAG, "No results found!");
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return;
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}
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@ -116,7 +130,7 @@ static void query_mdns_service(const char * service_name, const char * proto)
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mdns_query_results_free(results);
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}
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static void query_mdns_host(const char * host_name)
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static void query_mdns_host(const char *host_name)
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{
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ESP_LOGI(TAG, "Query A: %s.local", host_name);
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@ -124,8 +138,8 @@ static void query_mdns_host(const char * host_name)
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addr.addr = 0;
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esp_err_t err = mdns_query_a(host_name, 2000, &addr);
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if(err){
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if(err == ESP_ERR_NOT_FOUND){
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if (err) {
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if (err == ESP_ERR_NOT_FOUND) {
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ESP_LOGW(TAG, "%s: Host was not found!", esp_err_to_name(err));
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return;
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}
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@ -174,7 +188,7 @@ static void mdns_example_task(void *pvParameters)
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query_mdns_host_with_getaddrinfo("tinytester-lwip.local");
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#endif
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while(1) {
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while (1) {
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check_button();
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vTaskDelay(50 / portTICK_PERIOD_MS);
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}
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@ -201,7 +215,7 @@ void app_main(void)
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/** Generate host name based on sdkconfig, optionally adding a portion of MAC address to it.
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* @return host name string allocated from the heap
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*/
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static char* generate_hostname(void)
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static char *generate_hostname(void)
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{
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#ifndef CONFIG_MDNS_ADD_MAC_TO_HOSTNAME
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return strdup(CONFIG_MDNS_HOSTNAME);
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@ -221,7 +235,7 @@ static char* generate_hostname(void)
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* @brief Executes gethostbyname and displays list of resolved addresses.
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* Note: This function is used only to test advertised mdns hostnames resolution
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*/
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static void query_mdns_host_with_gethostbyname(char * host)
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static void query_mdns_host_with_gethostbyname(char *host)
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{
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struct hostent *res = gethostbyname(host);
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if (res) {
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@ -237,10 +251,10 @@ static void query_mdns_host_with_gethostbyname(char * host)
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* @brief Executes getaddrinfo and displays list of resolved addresses.
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* Note: This function is used only to test advertised mdns hostnames resolution
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*/
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static void query_mdns_host_with_getaddrinfo(char * host)
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static void query_mdns_host_with_getaddrinfo(char *host)
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{
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struct addrinfo hints;
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struct addrinfo * res;
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struct addrinfo *res;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_UNSPEC;
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@ -249,8 +263,8 @@ static void query_mdns_host_with_getaddrinfo(char * host)
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if (!getaddrinfo(host, NULL, &hints, &res)) {
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while (res) {
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ESP_LOGI(TAG, "getaddrinfo: %s resolved to: %s", host,
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res->ai_family == AF_INET?
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inet_ntoa(((struct sockaddr_in *) res->ai_addr)->sin_addr):
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res->ai_family == AF_INET ?
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inet_ntoa(((struct sockaddr_in *) res->ai_addr)->sin_addr) :
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inet_ntoa(((struct sockaddr_in6 *) res->ai_addr)->sin6_addr));
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res = res->ai_next;
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}
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