void application_start(void)
{
/* Initialise the device and WICED framework */
wiced_init( );
/* Bring up the network interface */
wiced_network_up( WICED_STA_INTERFACE, WICED_USE_EXTERNAL_DHCP_SERVER, NULL );
/* Create a TCP server socket */
if (wiced_tcp_create_socket(&tcp_server_handle.socket, WICED_STA_INTERFACE) != WICED_SUCCESS)
{
WPRINT_APP_INFO(("TCP socket creation failed\n"));
}
if (wiced_tcp_listen( &tcp_server_handle.socket, TCP_SERVER_LISTEN_PORT ) != WICED_SUCCESS)
{
WPRINT_APP_INFO(("TCP server socket initialization failed\n"));
wiced_tcp_delete_socket(&tcp_server_handle.socket);
return;
}
/* Start a tcp server thread */
WPRINT_APP_INFO(("Creating tcp server thread \n"));
wiced_rtos_create_thread(&tcp_thread, TCP_SERVER_THREAD_PRIORITY, "Demo tcp server", tcp_server_thread_main, TCP_SERVER_STACK_SIZE, &tcp_server_handle);
}
/**
* Create a new socket handle.
* @param family Must be {@code AF_INET}
* @param type Either SOCK_DGRAM or SOCK_STREAM
* @param protocol Either IPPROTO_UDP or IPPROTO_TCP
* @return
*/
sock_handle_t socket_create(uint8_t family, uint8_t type, uint8_t protocol, uint16_t port, network_interface_t nif)
{
if (family!=AF_INET || !((type==SOCK_DGRAM && protocol==IPPROTO_UDP) || (type==SOCK_STREAM && protocol==IPPROTO_TCP)))
return SOCKET_INVALID;
sock_handle_t result = SOCKET_INVALID;
socket_t* socket = new socket_t();
if (socket) {
wiced_result_t wiced_result;
socket->set_type((protocol==IPPROTO_UDP ? socket_t::UDP : socket_t::TCP));
if (protocol==IPPROTO_TCP) {
wiced_result = wiced_tcp_create_socket(tcp(socket), wiced_wlan_interface(nif));
}
else {
wiced_result = wiced_udp_create_socket(udp(socket), port, wiced_wlan_interface(nif));
}
if (wiced_result!=WICED_SUCCESS) {
socket->set_type(socket_t::NONE);
delete socket;
result = as_sock_result(wiced_result);
}
else {
SocketListLock lock(list_for(socket));
add_socket(socket);
result = as_sock_result(socket);
}
}
return result;
}
static wiced_result_t wiced_websocket_tls_connect( wiced_websocket_t* websocket,wiced_ip_address_t* address )
{
wiced_result_t result = WICED_ERROR;
wiced_tls_init_simple_context( &websocket_tls_context, NULL );
WICED_VERIFY( wiced_tcp_create_socket( &websocket->socket, WICED_STA_INTERFACE ) );
wiced_tcp_register_callbacks( &websocket->socket, websocket->on_open, NULL, websocket->on_close );
wiced_tcp_enable_tls( &websocket->socket, &websocket_tls_context );
wiced_tcp_bind( &websocket->socket, 443 );
result = wiced_tcp_connect( &websocket->socket, address, 443, 10000 );
if ( result != WICED_SUCCESS )
{
websocket->error_type=WEBSOCKET_CLIENT_CONNECT_ERROR;
websocket->on_error( websocket );
wiced_tcp_delete_socket( &websocket->socket );
return ( result );
}
return ( result );
}
int platform_network_connect(Network* n, char* hostname, int port)
{
wiced_ip_address_t ip_address;
wiced_result_t rc = -1;
int attempt = 1;
do
{
platform_printf("trying to resolve hostname (attempt %d)\n", attempt);
if ((rc = wiced_hostname_lookup(hostname, &ip_address, 10000)) == WICED_SUCCESS)
{
platform_printf("hostname resolved\n");
break;
}
}
while (++attempt <= 5);
if (rc != WICED_SUCCESS)
{
platform_printf("failed to resolve ip address of %s, rc = %d\n", hostname, rc);
return rc;
}
if (n->tls_enabled)
wiced_tls_init_simple_context(&n->tls_context, hostname);
/* Create a TCP socket */
rc = wiced_tcp_create_socket(&n->socket, WICED_STA_INTERFACE);
if (rc != WICED_SUCCESS)
{
platform_printf("tcp socket creation failed, rc = %d\n", rc);
return rc;
}
if (n->tls_enabled)
wiced_tcp_enable_tls(&n->socket, &n->tls_context);
rc = wiced_tcp_connect(&n->socket, &ip_address, port, 5000);
if (rc != WICED_SUCCESS)
{
platform_printf("unable to establish connection to %s:%d, rc = %d\n", hostname, port, rc);
goto exit;
}
rc = wiced_tcp_stream_init(&n->stream, &n->socket);
if (rc != WICED_SUCCESS)
{
platform_printf("unable to init tcp stream, rc = %d\n", rc);
goto exit;
}
rc = WICED_SUCCESS;
exit:
if (rc != WICED_SUCCESS)
platform_network_disconnect(n);
return rc;
}
wiced_result_t ota_server_start( ota_server_t* server, uint16_t port, const ota_http_page_t* page_database, wiced_interface_t interface )
{
memset( server, 0, sizeof( *server ) );
/* Create the TCP socket */
WICED_VERIFY(wiced_tcp_create_socket( &server->socket, interface ));
if (wiced_tcp_listen( (wiced_tcp_socket_t*) &server->socket, port ) != WICED_SUCCESS)
{
wiced_tcp_delete_socket(&server->socket);
return WICED_ERROR;
}
server->page_database = page_database;
return wiced_rtos_create_thread(&server->thread, OTA_SERVER_THREAD_PRIORITY, "HTTPserver", ota_server_thread_main, OTA_SERVER_STACK_SIZE, server);
}
wiced_result_t xively_open_feed( xively_feed_t* feed )
{
wiced_result_t result;
if ( is_ip_address_resolved == WICED_FALSE )
{
WICED_VERIFY( wiced_hostname_lookup( HOST_NAME, &xively_server_ip_address, DNS_TIMEOUT ) );
is_ip_address_resolved = WICED_TRUE;
}
wiced_tls_init_simple_context( &feed->tls_context, NULL );
WICED_VERIFY( wiced_tcp_create_socket( &feed->socket, WICED_STA_INTERFACE ) );
result = wiced_tcp_bind( &feed->socket, WICED_ANY_PORT );
if ( result != WICED_SUCCESS )
{
wiced_tcp_delete_socket( &feed->socket );
return result;
}
result = wiced_tcp_enable_tls( &feed->socket, &feed->tls_context );
if ( result != WICED_SUCCESS )
{
wiced_tls_deinit_context( &feed->tls_context );
wiced_tcp_delete_socket( &feed->socket );
return result;
}
result = wiced_tcp_connect( &feed->socket, &xively_server_ip_address, HTTPS_PORT, SOCKET_CONNECT_TIMEOUT );
if ( result != WICED_SUCCESS )
{
wiced_tcp_delete_socket( &feed->socket );
return result;
}
return WICED_SUCCESS;
}
wiced_result_t wiced_wlu_server_eth_start( int tcp_server_port , char** argv)
{
wiced_result_t result;
UNUSED_PARAMETER(argv);
wiced_assert("wlu_server already started", (wlu_server.started == WICED_FALSE));
wlu_server.started = WICED_TRUE;
wlu_server.eth_started = WICED_TRUE;
wlu_server.eth_port = tcp_server_port;
// WWD_WLAN_KEEP_AWAKE( );
/* Bring up the network interface */
result = wiced_network_up( WICED_ETHERNET_INTERFACE, WICED_USE_EXTERNAL_DHCP_SERVER, NULL );
if ( result != WICED_SUCCESS )
{
WPRINT_APP_INFO(("Failed to connect to Ethernet.\n"));
}
/* Create a TCP socket */
if ( wiced_tcp_create_socket( &tcp_client_socket, WICED_ETHERNET_INTERFACE ) != WICED_SUCCESS )
{
WPRINT_APP_INFO( ("TCP socket creation failed\n") );
}
if (wiced_tcp_listen( &tcp_client_socket, tcp_server_port ) != WICED_SUCCESS)
{
WPRINT_APP_INFO(("TCP server socket initialization failed\n"));
wiced_tcp_delete_socket(&tcp_client_socket);
return WICED_ERROR;
}
wiced_rtos_create_thread( &wlu_server.thread, WLU_SERVER_THREAD_PRIORITY, "wlu_eth_server", wlu_server_thread, WLU_SERVER_STACK_SIZE, &wlu_server );
return WICED_SUCCESS;
}
// The nonsecure server thread
static void tcp_server_nonsecure_thread_main(wiced_thread_arg_t arg)
{
wiced_result_t result;
wiced_tcp_stream_t stream; // The TCP stream
wiced_tcp_socket_t socket;
uint8_t rbuffer[MAX_LEGAL_MSG];
char returnMessage[128]; // better use less than 128 bytes
// setup the server by creating the socket and hooking it to the correct TCP Port
result = wiced_tcp_create_socket(&socket, INTERFACE);
if(WICED_SUCCESS != result)
{
WPRINT_APP_INFO(("Create socket failed\n"));
return; // this is a bad outcome
}
wiced_tcp_stream_init(&stream,&socket);
if(WICED_SUCCESS != result)
{
WPRINT_APP_INFO(("Init stream failed\n"));
return; // this is a bad outcome
}
result = wiced_tcp_listen( &socket, TCP_SERVER_NONSECURE_LISTEN_PORT );
if(WICED_SUCCESS != result)
{
WPRINT_APP_INFO(("Listen socket failed\n"));
return;
}
while (1 )
{
result = wiced_tcp_accept( &socket ); // this halts the thread until there is a connection
if(result != WICED_SUCCESS) // this occurs if the accept times out
continue;
nonsecureConnectionCount += 1;
/// Figure out which client is talking to us... and on which port
wiced_ip_address_t peerAddress;
uint16_t peerPort;
wiced_tcp_server_peer(&socket,&peerAddress,&peerPort);
uint32_t dataReadCount;
wiced_tcp_stream_read_with_count(&stream,&rbuffer,MAX_LEGAL_MSG,100,&dataReadCount); // timeout in 100 ms
processClientCommand(rbuffer, dataReadCount ,returnMessage);
displayResult(peerAddress,peerPort,returnMessage);
// send response and close things up
wiced_tcp_stream_write(&stream,returnMessage,strlen(returnMessage));
wiced_tcp_stream_flush(&stream);
wiced_tcp_disconnect(&socket); // disconnect the connection
wiced_tcp_stream_deinit(&stream); // clear the stream if any crap left
wiced_tcp_stream_init(&stream,&socket); // setup for next connection
}
}
wiced_result_t open_websocket(websocket_handshake_t *hs, websocket_msg_handler_t binary_msg_handler, websocket_msg_handler_t text_msg_handler, void *ctx) {
wiced_result_t ret;
wiced_ip_address_t host_ip;
wiced_tls_context_t tls_ctx;
wiced_tcp_socket_t sock;
wiced_tcp_stream_t stream;
char *buf = NULL;
uint32_t i;
https_header_t *header;
WPRINT_LIB_INFO( ("Starting WebSocket handshake to https://%s%s\n", hs->hostname, hs->path) );
ret = wiced_hostname_lookup(hs->hostname, &host_ip, DNS_TIMEOUT);
if (ret != WICED_SUCCESS) {
WPRINT_LIB_INFO( ("DNS lookup failed for %s (err=%u)\n", hs->hostname, ret) );
return ret;
}
wiced_tls_init_context(&tls_ctx, NULL, NULL);
wiced_tcp_create_socket(&sock, WICED_STA_INTERFACE);
wiced_tcp_enable_tls(&sock, &tls_ctx);
{
char ip_str[48];
ip_to_str(&host_ip, ip_str);
WPRINT_LIB_INFO( ("Establishing TLS connection to %s port %d\n", ip_str, HTTPS_PORT) );
}
ret = wiced_tcp_connect(&sock, &host_ip, HTTPS_PORT, HTTPS_CONNECT_TIMEOUT);
if (ret != WICED_SUCCESS) {
WPRINT_LIB_INFO( ("Failed to create TCP connection (err=%u)\n", ret) );
wiced_tcp_delete_socket(&sock);
return ret;
}
do {
ret = wiced_tcp_stream_init(&stream, &sock);
if (ret != WICED_SUCCESS) {
WPRINT_LIB_INFO( ("Failed to initialize TCP stream (err=%u)\n", ret) );
break;
}
buf = (char *)malloc(STREAM_BUF_SIZE);
snprintf(buf, STREAM_BUF_SIZE, "GET %s HTTP/1.1\r\n", hs->path);
WRITE_STREAM(stream, buf, ret);
// Required headers.
snprintf(buf, STREAM_BUF_SIZE,
"Host: %s\r\n" \
"Connection: upgrade\r\n" \
"Upgrade: websocket\r\n" \
"Sec-WebSocket-Key: %s\r\n" \
"Sec-WebSocket-Version: 13\r\n",
hs->hostname, hs->key);
WRITE_STREAM(stream, buf, ret);
// Additional headers.
for (i = 0; i < hs->num_headers; i++) {
header = &(hs->headers[i]);
snprintf(buf, STREAM_BUF_SIZE, "%s: %s\r\n", header->name, header->value);
WRITE_STREAM(stream, buf, ret);
}
if (i < hs->num_headers) {
break;
}
strcpy(buf, "\r\n");
WRITE_STREAM(stream, buf, ret);
ret = wiced_tcp_stream_flush(&stream);
if (ret != WICED_SUCCESS) {
break;
}
ret = process_handshake_response(hs, &sock);
} while (WICED_FALSE);
if (buf) {
free(buf);
}
wiced_tcp_stream_deinit(&stream);
if (ret == WICED_SUCCESS) {
WPRINT_LIB_INFO( ("WebSocket handshake OK\n") );
process_frames(&sock, binary_msg_handler, text_msg_handler, ctx);
WPRINT_LIB_INFO( ("Closing WebSocket.\n") );
}
else {
WPRINT_LIB_INFO( ("WebSocket handshake failed (err=%u)\n", ret) );
}
wiced_tcp_disconnect(&sock);
wiced_tcp_delete_socket(&sock);
return ret;
}
static void tcp_server_thread_main(wiced_thread_arg_t arg)
{
wiced_bool_t wwepSecurity = (wiced_bool_t)arg;
wiced_result_t result;
wiced_tcp_stream_t stream; // The TCP stream
wiced_tcp_socket_t socket;
platform_dct_security_t *dct_security;
wiced_tls_identity_t tls_identity;
wiced_tls_context_t tls_context;
uint8_t rbuffer[MAX_LEGAL_MSG];
char returnMessage[128]; // better use less than 128 bytes
// setup the server by creating the socket and hooking it to the correct TCP Port
result = wiced_tcp_create_socket(&socket, INTERFACE);
if(WICED_SUCCESS != result)
{
WPRINT_APP_INFO(("Create socket failed\n"));
return; // this is a bad outcome
}
if(wwepSecurity == WICED_TRUE)
{
WPRINT_APP_INFO(("Starting secure\n"));
}
else
{
WPRINT_APP_INFO(("Starting non-secure\n"));
}
result = wiced_tcp_listen( &socket, (wwepSecurity == WICED_TRUE)?TCP_SERVER_SECURE_LISTEN_PORT:TCP_SERVER_NONSECURE_LISTEN_PORT );
if(WICED_SUCCESS != result)
{
WPRINT_APP_INFO(("Listen socket failed\n"));
return;
}
if(wwepSecurity == WICED_TRUE)
{
/* Lock the DCT to allow us to access the certificate and key */
WPRINT_APP_INFO(( "Read the certificate Key from DCT\n" ));
result = wiced_dct_read_lock( (void**) &dct_security, WICED_FALSE, DCT_SECURITY_SECTION, 0, sizeof( *dct_security ) );
if ( result != WICED_SUCCESS )
{
WPRINT_APP_INFO(("Unable to lock DCT to read certificate\n"));
return;
}
/* Setup TLS identity */
result = wiced_tls_init_identity( &tls_identity, dct_security->private_key, strlen( dct_security->private_key ), (uint8_t*) dct_security->certificate, strlen( dct_security->certificate ) );
if ( result != WICED_SUCCESS )
{
WPRINT_APP_INFO(( "Unable to initialize TLS identity. Error = [%d]\n", result ));
return;
}
}
else
{
wiced_tcp_stream_init(&stream,&socket);
if(WICED_SUCCESS != result)
{
WPRINT_APP_INFO(("Init stream failed\n"));
return; // this is a bad outcome
}
}
while (1 )
{
if(wwepSecurity == WICED_TRUE)
{
result = wiced_tls_init_context( &tls_context, &tls_identity, NULL );
if(result != WICED_SUCCESS)
{
WPRINT_APP_INFO(("Init context failed %d",result));
return;
}
result = wiced_tcp_enable_tls(&socket,&tls_context);
if(result != WICED_SUCCESS)
{
WPRINT_APP_INFO(("Enabling TLS failed %d",result));
return;
}
wiced_tcp_stream_init(&stream,&socket);
if(WICED_SUCCESS != result)
{
WPRINT_APP_INFO(("Init stream failed\n"));
return; // this is a bad outcome
}
}
result = wiced_tcp_accept( &socket ); // this halts the thread until there is a connection
if(result != WICED_SUCCESS) // this occurs if the accept times out
continue;
if(wwepSecurity == WICED_TRUE)
secureConnectionCount += 1;
else
nonsecureConnectionCount += 1;
/// Figure out which client is talking to us... and on which port
wiced_ip_address_t peerAddress;
uint16_t peerPort;
wiced_tcp_server_peer(&socket,&peerAddress,&peerPort);
uint32_t dataReadCount;
wiced_tcp_stream_read_with_count(&stream,&rbuffer,MAX_LEGAL_MSG,100,&dataReadCount); // timeout in 100 ms
processClientCommand(rbuffer, dataReadCount ,returnMessage);
displayResult(peerAddress,peerPort,returnMessage);
// send response and close things up
wiced_tcp_stream_write(&stream,returnMessage,strlen(returnMessage));
wiced_tcp_stream_flush(&stream);
wiced_tcp_disconnect(&socket); // disconnect the connection
if(wwepSecurity == WICED_TRUE)
{
wiced_tls_deinit_context(&tls_context);
}
wiced_tcp_stream_deinit(&stream); // clear the stream if any crap left
wiced_tcp_stream_init(&stream,&socket); // setup for next connection
}
}