main.cpp

00001 /*
00002  * Copyright (c) 2013-2017, ARM Limited, All Rights Reserved
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License"); you may
00006  * not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  * http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
00013  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #ifndef MBED_CONF_APP_CONNECT_STATEMENT
00019 #error [NOT_SUPPORTED] No network configuration found for this target.
00020 #endif
00021 
00022 #include "mbed.h"
00023 #include MBED_CONF_APP_HEADER_FILE
00024 #include "TCPSocket.h"
00025 #include "greentea-client/test_env.h"
00026 #include "unity/unity.h"
00027 #include "utest.h"
00028 
00029 using namespace utest::v1;
00030 
00031 #ifndef MBED_CONF_APP_TCP_CLIENT_ECHO_BUFFER_SIZE
00032 #define MBED_CONF_APP_TCP_CLIENT_ECHO_BUFFER_SIZE 256
00033 #endif
00034 
00035 namespace
00036 {
00037 char tx_buffer[MBED_CONF_APP_TCP_CLIENT_ECHO_BUFFER_SIZE] = {0};
00038 char rx_buffer[MBED_CONF_APP_TCP_CLIENT_ECHO_BUFFER_SIZE] = {0};
00039 }
00040 
00041 void prep_buffer(char *tx_buffer, size_t tx_size)
00042 {
00043     for (size_t i = 0; i < tx_size; ++i) {
00044         tx_buffer[i] = (rand() % 10) + '0';
00045     }
00046 }
00047 
00048 void test_tcp_echo()
00049 {
00050     int n = 0;
00051     NetworkInterface* net = MBED_CONF_APP_OBJECT_CONSTRUCTION;
00052     int err =  MBED_CONF_APP_CONNECT_STATEMENT;
00053 
00054     if (err) {
00055         printf("MBED: failed to connect with an error of %d\r\n", err);
00056         TEST_ASSERT_EQUAL(0, err);
00057     }
00058 
00059     printf("MBED: TCPClient IP address is '%s'\n", net->get_ip_address());
00060 
00061     bool result = false;
00062 
00063     TCPSocket sock(net);
00064 
00065 #if defined(MBED_CONF_APP_ECHO_SERVER_ADDR) && defined(MBED_CONF_APP_ECHO_SERVER_PORT)
00066     printf("TCP: Connect to %s:%d\r\n", MBED_CONF_APP_ECHO_SERVER_ADDR, MBED_CONF_APP_ECHO_SERVER_PORT);
00067     SocketAddress tcp_addr(MBED_CONF_APP_ECHO_SERVER_ADDR, MBED_CONF_APP_ECHO_SERVER_PORT);
00068 #else /* MBED_CONF_APP_ECHO_SERVER_ADDR && MBED_CONF_APP_ECHO_SERVER_PORT */
00069     char recv_key[] = "host_port";
00070     char ipbuf[60] = {0};
00071     char portbuf[16] = {0};
00072     unsigned int port = 0;
00073 
00074     greentea_send_kv("target_ip", net->get_ip_address());
00075     greentea_send_kv("host_ip", " ");
00076     greentea_parse_kv(recv_key, ipbuf, sizeof(recv_key), sizeof(ipbuf));
00077 
00078     greentea_send_kv("host_port", " ");
00079     greentea_parse_kv(recv_key, portbuf, sizeof(recv_key), sizeof(ipbuf));
00080     sscanf(portbuf, "%u", &port);
00081 
00082     printf("TCP: Connect to %s:%d\r\n", ipbuf, port);
00083     SocketAddress tcp_addr(ipbuf, port);
00084 #endif /* MBED_CONF_APP_ECHO_SERVER_ADDR && MBED_CONF_APP_ECHO_SERVER_PORT */
00085 
00086     if (sock.connect(tcp_addr) == 0) {
00087         printf("tx_buffer buffer size: %u\r\n", sizeof(tx_buffer));
00088         printf("rx_buffer buffer size: %u\r\n", sizeof(rx_buffer));
00089 
00090         prep_buffer(tx_buffer, sizeof(tx_buffer));
00091 #if defined(MBED_CONF_APP_TCP_ECHO_PREFIX)
00092         n = sock.recv(rx_buffer, sizeof(MBED_CONF_APP_TCP_ECHO_PREFIX));
00093         if (n >= 0) {
00094             printf("recv-ed prefix: %d bytes - %.*s  \n", n, n, rx_buffer);
00095         } else {
00096             printf("Network error in receiving prefix: %d\n", n);
00097         }
00098 #endif /* MBED_CONF_APP_TCP_ECHO_PREFIX */
00099         const int ret = sock.send(tx_buffer, sizeof(tx_buffer));
00100         if (ret >= 0) {
00101             printf("sent %d bytes - %.*s  \n", ret, ret, tx_buffer);
00102         } else {
00103             printf("Network error %d\n", ret);
00104         }
00105 
00106         n = sock.recv(rx_buffer, sizeof(rx_buffer));
00107         if (n >= 0) {
00108             printf("recv %d bytes - %.*s  \n", n, n, rx_buffer);
00109         } else {
00110             printf("Network error %d\n", n);
00111         }
00112 
00113         result = !memcmp(tx_buffer, rx_buffer, sizeof(tx_buffer));
00114         TEST_ASSERT_EQUAL(ret, sizeof(rx_buffer));
00115         TEST_ASSERT_EQUAL(true, result);
00116     }
00117 
00118     sock.close();
00119     net->disconnect();
00120     TEST_ASSERT_EQUAL(true, result);
00121 }
00122 
00123 
00124 // Test setup
00125 utest::v1::status_t test_setup(const size_t number_of_cases)
00126 {
00127     GREENTEA_SETUP(240, "tcp_echo");
00128     return verbose_test_setup_handler(number_of_cases);
00129 }
00130 
00131 Case cases[] = {
00132     Case("TCP echo", test_tcp_echo),
00133 };
00134 
00135 Specification specification(test_setup, cases);
00136 
00137 int main()
00138 {
00139     return !Harness::run(specification);
00140 }