/**
* Use a connection, checking that it is good
* Checks via doing an NTP transaction
*/
static void use_connection(OnboardCellularInterface *driver)
{
const char *ip_address = driver->get_ip_address();
const char *net_mask = driver->get_netmask();
const char *gateway = driver->get_gateway();
TEST_ASSERT(driver->is_connected());
TEST_ASSERT(ip_address != NULL);
tr_debug("IP address %s.", ip_address);
TEST_ASSERT(net_mask != NULL);
tr_debug("Net mask %s.", net_mask);
TEST_ASSERT(gateway != NULL);
tr_debug("Gateway %s.", gateway);
UDPSocket sock;
SocketAddress host_address;
TEST_ASSERT(driver->gethostbyname(MBED_CONF_APP_ECHO_SERVER, &host_address) == 0);
host_address.set_port(MBED_CONF_APP_ECHO_UDP_PORT);
tr_debug("UDP: Server %s address: %s on port %d.",
MBED_CONF_APP_ECHO_SERVER, host_address.get_ip_address(),
host_address.get_port());
TEST_ASSERT(sock.open(driver) == 0)
sock.set_timeout(10000);
do_udp_echo(&sock, &host_address, 1);
sock.close();
}
/**
* Connect with credentials included in the connect request
*/
void test_connect_credentials()
{
driver.disconnect();
TEST_ASSERT(do_connect(&driver) == 0);
use_connection(&driver);
drop_connection(&driver);
}
/**
* Test with credentials preset
*/
void test_connect_preset_credentials()
{
driver.disconnect();
driver.set_sim_pin(MBED_CONF_APP_DEFAULT_PIN);
driver.set_credentials(MBED_CONF_APP_APN, MBED_CONF_APP_USERNAME,
MBED_CONF_APP_PASSWORD);
int num_retries = 0;
nsapi_error_t err = NSAPI_ERROR_OK;
while (!driver.is_connected()) {
err = driver.connect();
if (err == NSAPI_ERROR_OK || num_retries > MBED_CONF_APP_MAX_RETRIES) {
break;
}
}
TEST_ASSERT(err == 0);
use_connection(&driver);
drop_connection(&driver);
}
/**
* Test TCP data exchange via the asynchronous sigio() mechanism
*/
void test_tcp_echo_async()
{
TCPSocket sock;
SocketAddress host_address;
bool callback_triggered = false;
int x;
int size;
driver.disconnect();
TEST_ASSERT(do_connect(&driver) == 0);
TEST_ASSERT(
driver.gethostbyname(MBED_CONF_APP_ECHO_SERVER, &host_address) == 0);
host_address.set_port(MBED_CONF_APP_ECHO_TCP_PORT);
tr_debug("TCP: Server %s address: %s on port %d.",
MBED_CONF_APP_ECHO_SERVER, host_address.get_ip_address(),
host_address.get_port());
TEST_ASSERT(sock.open(&driver) == 0)
// Set up the async callback and set the timeout to zero
sock.sigio(callback(async_cb, &callback_triggered));
sock.set_timeout(0);
TEST_ASSERT(sock.connect(host_address) == 0);
// Test min, max, and some random sizes in-between
do_tcp_echo_async(&sock, 1, &callback_triggered);
do_tcp_echo_async(&sock, MBED_CONF_APP_TCP_MAX_PACKET_SIZE,
&callback_triggered);
sock.close();
drop_connection(&driver);
tr_debug("TCP packets of size up to %d byte(s) echoed asynchronously and successfully.",
MBED_CONF_APP_TCP_MAX_PACKET_SIZE);
}
/**
* Test UDP data exchange
*/
void test_udp_echo()
{
UDPSocket sock;
SocketAddress host_address;
int x;
int size;
driver.disconnect();
TEST_ASSERT(do_connect(&driver) == 0);
TEST_ASSERT(driver.gethostbyname(MBED_CONF_APP_ECHO_SERVER, &host_address) == 0);
host_address.set_port(MBED_CONF_APP_ECHO_UDP_PORT);
tr_debug("UDP: Server %s address: %s on port %d.",
MBED_CONF_APP_ECHO_SERVER, host_address.get_ip_address(),
host_address.get_port());
TEST_ASSERT(sock.open(&driver) == 0)
sock.set_timeout(10000);
// Test min, max, and some random sizes in-between
do_udp_echo(&sock, &host_address, 1);
do_udp_echo(&sock, &host_address, MBED_CONF_APP_UDP_MAX_PACKET_SIZE);
for (x = 0; x < 10; x++) {
size = (rand() % MBED_CONF_APP_UDP_MAX_PACKET_SIZE) + 1;
size = fix(size, MBED_CONF_APP_UDP_MAX_PACKET_SIZE + 1);
do_udp_echo(&sock, &host_address, size);
}
sock.close();
drop_connection(&driver);
tr_debug("%d UDP packets of size up to %d byte(s) echoed successfully.", x,
MBED_CONF_APP_UDP_MAX_PACKET_SIZE);
}
/**
* connect to the network
*/
static nsapi_error_t do_connect(OnboardCellularInterface *iface)
{
int num_retries = 0;
nsapi_error_t err = NSAPI_ERROR_OK;
while (!iface->is_connected()) {
err = driver.connect(MBED_CONF_APP_DEFAULT_PIN, MBED_CONF_APP_APN,
MBED_CONF_APP_USERNAME, MBED_CONF_APP_PASSWORD);
if (err == NSAPI_ERROR_OK || num_retries > MBED_CONF_APP_MAX_RETRIES) {
break;
}
num_retries++;
}
return err;
}
/**
* Drop a connection and check that it has dropped
*/
static void drop_connection(OnboardCellularInterface *driver)
{
TEST_ASSERT(driver->disconnect() == 0);
TEST_ASSERT(!driver->is_connected());
}
/* \brief easy_connect easy_connect() function to connect the pre-defined network bearer,
* config done via mbed_app.json (see README.md for details).
*
* IN: bool log_messages print out diagnostics or not.
*/
NetworkInterface* easy_connect(bool log_messages) {
NetworkInterface* network_interface = NULL;
int connect_success = -1;
#if defined (EASY_CONNECT_WIFI)
// We check if the _ssid and _password have already been set (via the easy_connect()
// that takes thoses parameters or not.
// If they have not been set, use the ones we can gain from mbed_app.json.
if (_ssid == NULL) {
if(strlen(MBED_CONF_APP_WIFI_SSID) > WIFI_SSID_MAX_LEN) {
printf("ERROR - MBED_CONF_APP_WIFI_SSID is too long %d vs. %d\n",
strlen(MBED_CONF_APP_WIFI_SSID),
WIFI_SSID_MAX_LEN);
return NULL;
}
}
if (_password == NULL) {
if(strlen(MBED_CONF_APP_WIFI_PASSWORD) > WIFI_PASSWORD_MAX_LEN) {
printf("ERROR - MBED_CONF_APP_WIFI_PASSWORD is too long %d vs. %d\n",
strlen(MBED_CONF_APP_WIFI_PASSWORD),
WIFI_PASSWORD_MAX_LEN);
return NULL;
}
}
#endif // EASY_CONNECT_WIFI
/// This should be removed once mbedOS supports proper dual-stack
if (log_messages) {
#if defined (EASY_CONNECT_MESH) || (MBED_CONF_LWIP_IPV6_ENABLED==true)
printf("[EasyConnect] IPv6 mode\n");
#else
printf("[EasyConnect] IPv4 mode\n");
#endif
}
#if defined (EASY_CONNECT_WIFI)
if (log_messages) {
printf("[EasyConnect] Using WiFi (%s) \n", EASY_CONNECT_WIFI_TYPE);
printf("[EasyConnect] Connecting to WiFi %s\n",
((_ssid == NULL) ? MBED_CONF_APP_WIFI_SSID : _ssid) );
}
network_interface = &wifi;
if (_ssid == NULL) {
connect_success = wifi.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD,
(strlen(MBED_CONF_APP_WIFI_PASSWORD) > 1) ? NSAPI_SECURITY_WPA_WPA2 : NSAPI_SECURITY_NONE);
}
else {
connect_success = wifi.connect(_ssid, _password, (strlen(_password) > 1) ? NSAPI_SECURITY_WPA_WPA2 : NSAPI_SECURITY_NONE);
}
#elif MBED_CONF_APP_NETWORK_INTERFACE == CELLULAR_ONBOARD || MBED_CONF_APP_NETWORK_INTERFACE == CELLULAR
# ifdef MBED_CONF_APP_CELLULAR_SIM_PIN
cellular.set_sim_pin(MBED_CONF_APP_CELLULAR_SIM_PIN);
# endif
# ifdef MBED_CONF_APP_CELLULAR_APN
# ifndef MBED_CONF_APP_CELLULAR_USERNAME
# define MBED_CONF_APP_CELLULAR_USERNAME 0
# endif
# ifndef MBED_CONF_APP_CELLULAR_PASSWORD
# define MBED_CONF_APP_CELLULAR_PASSWORD 0
# endif
cellular.set_credentials(MBED_CONF_APP_CELLULAR_APN, MBED_CONF_APP_CELLULAR_USERNAME, MBED_CONF_APP_CELLULAR_PASSWORD);
if (log_messages) {
printf("[EasyConnect] Connecting using Cellular interface and APN %s\n", MBED_CONF_APP_CELLULAR_APN);
}
# else
if (log_messages) {
printf("[EasyConnect] Connecting using Cellular interface and default APN\n");
}
# endif
connect_success = cellular.connect();
network_interface = &cellular;
#elif MBED_CONF_APP_NETWORK_INTERFACE == CELLULAR_WNC14A2A
if (log_messages) {
printf("[EasyConnect] Using WNC14A2A\n");
}
# if MBED_CONF_APP_WNC_DEBUG == true
printf("[EasyConnect] With WNC14A2A debug output set to 0x%02X\n",MBED_CONF_APP_WNC_DEBUG_SETTING);
wnc.doDebug(MBED_CONF_APP_WNC_DEBUG_SETTING);
# endif
network_interface = &wnc;
connect_success = wnc.connect();
#elif MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET
if (log_messages) {
printf("[EasyConnect] Using Ethernet\n");
}
network_interface = ð
#if MBED_CONF_EVENTS_SHARED_DISPATCH_FROM_APPLICATION
eth.set_blocking(false);
#endif
connect_success = eth.connect();
#endif
#ifdef EASY_CONNECT_MESH
if (log_messages) {
printf("[EasyConnect] Using Mesh (%s)\n", EASY_CONNECT_MESH_TYPE);
printf("[EasyConnect] Connecting to Mesh...\n");
}
network_interface = &mesh;
#if MBED_CONF_EVENTS_SHARED_DISPATCH_FROM_APPLICATION
mesh.set_blocking(false);
#endif
mesh.initialize(&rf_phy);
connect_success = mesh.connect();
#endif
if(connect_success == 0
#if (MBED_CONF_EVENTS_SHARED_DISPATCH_FROM_APPLICATION && (MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET || defined(EASY_CONNECT_MESH)))
|| connect_success == NSAPI_ERROR_IS_CONNECTED || connect_success == NSAPI_ERROR_ALREADY
#endif
) {
#if (MBED_CONF_EVENTS_SHARED_DISPATCH_FROM_APPLICATION && (MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET || defined(EASY_CONNECT_MESH)))
nsapi_connection_status_t connection_status;
for (;;) {
// Check current connection status.
connection_status = network_interface->get_connection_status();
if (connection_status == NSAPI_STATUS_GLOBAL_UP) {
// Connection ready.
break;
} else if (connection_status == NSAPI_STATUS_ERROR_UNSUPPORTED) {
if (log_messages) {
print_MAC(network_interface, log_messages);
printf("[EasyConnect] Connection to Network Failed %d!\n", connection_status);
}
return NULL;
}
// Not ready yet, give some runtime to the network stack.
mbed::mbed_event_queue()->dispatch(100);
}
#endif
if (log_messages) {
printf("[EasyConnect] Connected to Network successfully\n");
print_MAC(network_interface, log_messages);
}
} else {
if (log_messages) {
print_MAC(network_interface, log_messages);
printf("[EasyConnect] Connection to Network Failed %d!\n", connect_success);
}
return NULL;
}
const char *ip_addr = network_interface->get_ip_address();
if (ip_addr == NULL) {
if (log_messages) {
printf("[EasyConnect] ERROR - No IP address\n");
}
return NULL;
}
if (log_messages) {
printf("[EasyConnect] IP address %s\n", ip_addr);
}
return network_interface;
}