# This example code is in the Public Domain (or CC0 licensed, at your option.) # Unless required by applicable law or agreed to in writing, this # software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR # CONDITIONS OF ANY KIND, either express or implied. # -*- coding: utf-8 -*- from __future__ import print_function, unicode_literals import os import re import socket import sys import ttfw_idf from common_test_methods import get_env_config_variable, get_my_interface_by_dest_ip # ----------- Config ---------- PORT = 3333 # ------------------------------- def udp_client(address, payload): for res in socket.getaddrinfo(address, PORT, socket.AF_UNSPEC, socket.SOCK_DGRAM, 0, socket.AI_PASSIVE): family_addr, socktype, proto, canonname, addr = res try: sock = socket.socket(family_addr, socket.SOCK_DGRAM) sock.settimeout(20.0) except socket.error as msg: print('Could not create socket') print(os.strerror(msg.errno)) raise try: sock.sendto(payload.encode(), addr) reply, addr = sock.recvfrom(128) if not reply: return print('Reply[' + addr[0] + ':' + str(addr[1]) + '] - ' + str(reply)) except socket.timeout: print('Socket operation timeout') return str(None) except socket.error as msg: print('Error while sending or receiving data from the socket') print(os.strerror(msg.errno)) sock.close() raise return reply.decode() @ttfw_idf.idf_example_test(env_tag='wifi_router') def test_examples_protocol_socket_udpserver(env, extra_data): MESSAGE = 'Data to ESP' MAX_RETRIES = 3 """ steps: 1. join AP 2. have the board connect to the server 3. send and receive data """ dut1 = env.get_dut('udp_server', 'examples/protocols/sockets/udp_server', dut_class=ttfw_idf.ESP32DUT) # check and log bin size binary_file = os.path.join(dut1.app.binary_path, 'udp_server.bin') bin_size = os.path.getsize(binary_file) ttfw_idf.log_performance('udp_server_bin_size', '{}KB'.format(bin_size // 1024)) # start test dut1.start_app() if dut1.app.get_sdkconfig_config_value('CONFIG_EXAMPLE_WIFI_SSID_PWD_FROM_STDIN'): dut1.expect('Please input ssid password:') env_name = 'wifi_router' ap_ssid = get_env_config_variable(env_name, 'ap_ssid') ap_password = get_env_config_variable(env_name, 'ap_password') dut1.write(f'{ap_ssid} {ap_password}') ipv4 = dut1.expect(re.compile(r'IPv4 address: (\d+\.\d+\.\d+\.\d+)[^\d]'), timeout=30)[0] ipv6_r = r':'.join((r'[0-9a-fA-F]{4}',) * 8) # expect all 8 octets from IPv6 (assumes it's printed in the long form) ipv6 = dut1.expect(re.compile(r' IPv6 address: ({})'.format(ipv6_r)), timeout=30)[0] print('Connected with IPv4={} and IPv6={}'.format(ipv4, ipv6)) dut1.expect(re.compile(r'Waiting for data'), timeout=10) interface = get_my_interface_by_dest_ip(ipv4) # test IPv4 for _ in range(MAX_RETRIES): print('Testing UDP on IPv4...') received = udp_client(ipv4, MESSAGE) if received == MESSAGE: print('OK') break else: raise ValueError('IPv4: Did not receive UDP message after {} retries'.format(MAX_RETRIES)) dut1.expect(MESSAGE) # test IPv6 for _ in range(MAX_RETRIES): print('Testing UDP on IPv6...') received = udp_client('{}%{}'.format(ipv6, interface), MESSAGE) if received == MESSAGE: print('OK') break else: raise ValueError('IPv6: Did not receive UDP message after {} retries'.format(MAX_RETRIES)) dut1.expect(MESSAGE) if __name__ == '__main__': if sys.argv[2:]: # if two arguments provided: # Usage: example_test.py <server_address> <message_to_send_to_server> udp_client(sys.argv[1], sys.argv[2]) else: # otherwise run standard example test as in the CI test_examples_protocol_socket_udpserver()