Diff: mbed-os/TESTS/netsocket/udp_dtls_handshake/main.cpp

Revision:

0:6bf0743ece18

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/TESTS/netsocket/udp_dtls_handshake/main.cpp	Sat Mar 28 15:28:19 2020 +0000
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2013-2017, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ #ifndef MBED_CONF_APP_CONNECT_STATEMENT
+     #error [NOT_SUPPORTED] No network configuration found for this target.
+ #endif
+
+#include "mbed.h"
+#include MBED_CONF_APP_HEADER_FILE
+#include "UDPSocket.h"
+#include "greentea-client/test_env.h"
+#include "unity/unity.h"
+#include "utest.h"
+
+using namespace utest::v1;
+
+
+#ifndef MBED_CFG_UDP_DTLS_HANDSHAKE_BUFFER_SIZE
+#define MBED_CFG_UDP_DTLS_HANDSHAKE_BUFFER_SIZE 512
+#endif
+
+#ifndef MBED_CFG_UDP_DTLS_HANDSHAKE_RETRIES
+#define MBED_CFG_UDP_DTLS_HANDSHAKE_RETRIES 16
+#endif
+
+#ifndef MBED_CFG_UDP_DTLS_HANDSHAKE_PATTERN
+#define MBED_CFG_UDP_DTLS_HANDSHAKE_PATTERN 112, 384, 200, 219, 25
+#endif
+
+#ifndef MBED_CFG_UDP_DTLS_HANDSHAKE_TIMEOUT
+#define MBED_CFG_UDP_DTLS_HANDSHAKE_TIMEOUT 1500
+#endif
+
+
+uint8_t buffer[MBED_CFG_UDP_DTLS_HANDSHAKE_BUFFER_SIZE] = {0};
+int udp_dtls_handshake_pattern[] = {MBED_CFG_UDP_DTLS_HANDSHAKE_PATTERN};
+const int udp_dtls_handshake_count = sizeof(udp_dtls_handshake_pattern) / sizeof(int);
+
+void test_udp_dtls_handshake() {
+    NetworkInterface* net = MBED_CONF_APP_OBJECT_CONSTRUCTION;
+    int err =  MBED_CONF_APP_CONNECT_STATEMENT;
+    TEST_ASSERT_EQUAL(0, err);
+
+    printf("MBED: UDPClient IP address is '%s'\n", net->get_ip_address());
+    printf("MBED: UDPClient waiting for server IP and port...\n");
+
+    greentea_send_kv("target_ip", net->get_ip_address());
+
+    bool result = false;
+
+    char recv_key[] = "host_port";
+    char ipbuf[60] = {0};
+    char portbuf[16] = {0};
+    unsigned int port = 0;
+
+    greentea_send_kv("host_ip", " ");
+    greentea_parse_kv(recv_key, ipbuf, sizeof(recv_key), sizeof(ipbuf));
+
+    greentea_send_kv("host_port", " ");
+    greentea_parse_kv(recv_key, portbuf, sizeof(recv_key), sizeof(ipbuf));
+    sscanf(portbuf, "%u", &port);
+
+    printf("MBED: UDP Server IP address received: %s:%d \n", ipbuf, port);
+
+    // align each size to 4-bits
+    for (int i = 0; i < udp_dtls_handshake_count; i++) {
+        udp_dtls_handshake_pattern[i] = (~0xf & udp_dtls_handshake_pattern[i]) + 0x10;
+    }
+
+    printf("MBED: DTLS pattern [");
+    for (int i = 0; i < udp_dtls_handshake_count; i++) {
+        printf("%d", udp_dtls_handshake_pattern[i]);
+        if (i != udp_dtls_handshake_count-1) {
+            printf(", ");
+        }
+    }
+    printf("]\r\n");
+
+    UDPSocket sock;
+    SocketAddress udp_addr(ipbuf, port);
+    sock.set_timeout(MBED_CFG_UDP_DTLS_HANDSHAKE_TIMEOUT);
+
+    for (int attempt = 0; attempt < MBED_CFG_UDP_DTLS_HANDSHAKE_RETRIES; attempt++) {
+        err = sock.open(net);
+        TEST_ASSERT_EQUAL(0, err);
+
+        for (int i = 0; i < udp_dtls_handshake_count; i++) {
+            buffer[i] = udp_dtls_handshake_pattern[i] >> 4;
+        }
+
+        err = sock.sendto(udp_addr, buffer, udp_dtls_handshake_count);
+        printf("UDP: tx -> %d\r\n", err);
+        TEST_ASSERT_EQUAL(udp_dtls_handshake_count, err);
+
+        int step = 0;
+        while (step < udp_dtls_handshake_count) {
+            err = sock.recvfrom(NULL, buffer, sizeof(buffer));
+            printf("UDP: rx <- %d ", err);
+
+            // check length
+            if (err != udp_dtls_handshake_pattern[step]) {
+                printf("x (expected %d)\r\n", udp_dtls_handshake_pattern[step]);
+                break;
+            }
+
+            // check quick xor of packet
+            uint8_t check = 0;
+            for (int j = 0; j < udp_dtls_handshake_pattern[step]; j++) {
+                check ^= buffer[j];
+            }
+
+            if (check != 0) {
+                printf("x (checksum 0x%02x)\r\n", check);
+                break;
+            }
+
+            // successfully got a packet
+            printf("\r\n");
+            step += 1;
+        }
+
+        err = sock.close();
+        TEST_ASSERT_EQUAL(0, err);
+
+        // got through all steps, test passed
+        if (step == udp_dtls_handshake_count) {
+            result = true;
+            break;
+        }
+    }
+
+    net->disconnect();
+    TEST_ASSERT_EQUAL(true, result);
+}
+
+
+// Test setup
+utest::v1::status_t test_setup(const size_t number_of_cases) {
+    GREENTEA_SETUP(120, "udp_shotgun");
+    return verbose_test_setup_handler(number_of_cases);
+}
+
+Case cases[] = {
+    Case("UDP DTLS handshake", test_udp_dtls_handshake),
+};
+
+Specification specification(test_setup, cases);
+
+int main() {
+    return !Harness::run(specification);
+}