add support for querying and setting the hostname

components/lua/modules/net/net_eth.inc

@@ -180,11 +180,34 @@ static int leth_stat(lua_State* L) {
     return table;
 }
 
+static int leth_hostname(lua_State* L) {
+    driver_error_t *error;
+    const char *hostname = luaL_optstring( L, 1, NULL );
+
+    if (NULL != hostname) {
+        if ((error = eth_set_hostname(hostname))) {
+            return luaL_driver_error(L, error);
+        }
+
+        return 0;
+    }
+
+    hostname = NULL;
+    if ((error = eth_get_hostname(&hostname))) {
+        return luaL_driver_error(L, error);
+    }
+
+    lua_pushstring(L, hostname);
+    return 1;
+}
+
+
 static const LUA_REG_TYPE eth_map[] = {
-    { LSTRKEY( "setup" ),     LFUNCVAL( leth_setup   ) },
-    { LSTRKEY( "start" ),     LFUNCVAL( leth_start   ) },
-    { LSTRKEY( "stop"  ),     LFUNCVAL( leth_stop    ) },
-    { LSTRKEY( "stat"  ),     LFUNCVAL( leth_stat    ) },
+    { LSTRKEY( "setup" ),     LFUNCVAL( leth_setup    ) },
+    { LSTRKEY( "start" ),     LFUNCVAL( leth_start    ) },
+    { LSTRKEY( "stop"  ),     LFUNCVAL( leth_stop     ) },
+    { LSTRKEY( "stat"  ),     LFUNCVAL( leth_stat     ) },
+    { LSTRKEY( "hostname"  ), LFUNCVAL( leth_hostname ) },
     DRIVER_REGISTER_LUA_ERRORS(eth)
     { LNILKEY, LNILVAL }
 };

components/lua/modules/net/net_wifi.inc

@@ -518,6 +518,27 @@ static int lwifi_smartconfig(lua_State* L) {
     return 0;
 }
 
+static int lwifi_hostname(lua_State* L) {
+    driver_error_t *error;
+    const char *hostname = luaL_optstring( L, 1, NULL );
+
+    if (NULL != hostname) {
+        if ((error = wifi_set_hostname(hostname))) {
+            return luaL_driver_error(L, error);
+        }
+
+        return 0;
+    }
+
+    hostname = NULL;
+    if ((error = wifi_get_hostname(&hostname))) {
+        return luaL_driver_error(L, error);
+    }
+
+    lua_pushstring(L, hostname);
+    return 1;
+}
+
 
 static const LUA_REG_TYPE wifi_auth_map[] = {
     { LSTRKEY( "OPEN"         ), LINTVAL( WIFI_AUTH_OPEN ) },
@@ -559,6 +580,7 @@ static const LUA_REG_TYPE wifi_map[] = {
     { LSTRKEY( "start"      ),     LFUNCVAL( lwifi_start            ) },
     { LSTRKEY( "stop"       ),     LFUNCVAL( lwifi_stop             ) },
     { LSTRKEY( "stat"       ),     LFUNCVAL( lwifi_stat             ) },
+    { LSTRKEY( "hostname"  ),      LFUNCVAL( lwifi_hostname         ) },
 #if CONFIG_ESP32_WIFI_NVS_ENABLED
     // wps ssid+auth can only be stored to nvs
     // so if nvs is disabled, wps would have to be repeated on every boot

components/sys/drivers/eth.c

@@ -302,4 +302,18 @@ driver_error_t *eth_stat(ifconfig_t *info) {
     return NULL;
 }
 
+driver_error_t *eth_set_hostname(const char *hostname) {
+    esp_err_t ret = tcpip_adapter_set_hostname(TCPIP_ADAPTER_IF_ETH, hostname);
+    if (ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS == ret) return driver_error(ETH_DRIVER, ETH_ERR_INVALID_ARGUMENT, NULL);
+    if (ESP_ERR_TCPIP_ADAPTER_IF_NOT_READY   == ret) return driver_error(ETH_DRIVER, ETH_ERR_NOT_START, NULL);
+    return NULL;
+}
+
+driver_error_t *eth_get_hostname(const char **hostname) {
+    esp_err_t ret = tcpip_adapter_get_hostname(TCPIP_ADAPTER_IF_ETH, hostname);
+    if (ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS == ret) return driver_error(ETH_DRIVER, ETH_ERR_INVALID_ARGUMENT, NULL);
+    if (ESP_ERR_TCPIP_ADAPTER_IF_NOT_READY   == ret) return driver_error(ETH_DRIVER, ETH_ERR_NOT_START, NULL);
+    return NULL;
+}
+
 #endif

components/sys/drivers/eth.h

@@ -64,5 +64,7 @@ driver_error_t *eth_setup(uint32_t ip, uint32_t mask, uint32_t gw, uint32_t dns1
 driver_error_t *eth_start(uint8_t async);
 driver_error_t *eth_stop();
 driver_error_t *eth_stat(ifconfig_t *info);
+driver_error_t *eth_set_hostname(const char *hostname);
+driver_error_t *eth_get_hostname(const char **hostname);
 
 #endif /* DRIVERS_ETH_H_ */

components/sys/drivers/wifi.c

@@ -769,4 +769,44 @@ driver_error_t *wifi_get_mac(uint8_t mac[6]) {
     return NULL;
 }
 
+driver_error_t *wifi_set_hostname(const char *hostname) {
+    driver_error_t *error;
+
+    uint8_t interface = ESP_IF_WIFI_STA;
+    if (status_get(STATUS_WIFI_INITED)) {
+        wifi_mode_t mode;
+        if ((error = wifi_check_error(esp_wifi_get_mode(&mode)))) return error;
+
+        if (mode == WIFI_MODE_AP)
+            interface = ESP_IF_WIFI_AP;
+
+        //TODO add mac for WIFI_MODE_APSTA
+    }
+
+    esp_err_t ret = tcpip_adapter_set_hostname(interface, hostname);
+    if (ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS == ret) return driver_error(ETH_DRIVER, WIFI_ERR_INVALID_ARGUMENT, NULL);
+    if (ESP_ERR_TCPIP_ADAPTER_IF_NOT_READY   == ret) return driver_error(ETH_DRIVER, WIFI_ERR_WIFI_NOT_START, NULL);
+    return NULL;
+}
+
+driver_error_t *wifi_get_hostname(const char **hostname) {
+    driver_error_t *error;
+
+    uint8_t interface = ESP_IF_WIFI_STA;
+    if (status_get(STATUS_WIFI_INITED)) {
+        wifi_mode_t mode;
+        if ((error = wifi_check_error(esp_wifi_get_mode(&mode)))) return error;
+
+        if (mode == WIFI_MODE_AP)
+            interface = ESP_IF_WIFI_AP;
+
+        //TODO add mac for WIFI_MODE_APSTA
+    }
+
+    esp_err_t ret = tcpip_adapter_get_hostname(interface, hostname);
+    if (ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS == ret) return driver_error(ETH_DRIVER, WIFI_ERR_INVALID_ARGUMENT, NULL);
+    if (ESP_ERR_TCPIP_ADAPTER_IF_NOT_READY   == ret) return driver_error(ETH_DRIVER, WIFI_ERR_WIFI_NOT_START, NULL);
+    return NULL;
+}
+
 #endif

components/sys/drivers/wifi.h

@@ -92,6 +92,8 @@ driver_error_t *wifi_start(uint8_t async);
 driver_error_t *wifi_stop();
 driver_error_t *wifi_stat(ifconfig_t *info);
 driver_error_t *wifi_get_mac(uint8_t mac[6]);
+driver_error_t *wifi_set_hostname(const char *hostname);
+driver_error_t *wifi_get_hostname(const char **hostname);
 
 void wifi_wps_reconnect();
 void wifi_wps_disable();