kopia lustrzana https://github.com/espressif/esp-idf
135 wiersze
5.3 KiB
Python
135 wiersze
5.3 KiB
Python
import re
|
|
import os
|
|
import socket
|
|
import time
|
|
import struct
|
|
import dpkt
|
|
import dpkt.dns
|
|
from threading import Thread, Event
|
|
|
|
from tiny_test_fw import DUT
|
|
import ttfw_idf
|
|
|
|
# g_run_server = True
|
|
# g_done = False
|
|
stop_mdns_server = Event()
|
|
esp_answered = Event()
|
|
|
|
|
|
def get_dns_query_for_esp(esp_host):
|
|
dns = dpkt.dns.DNS(b'\x00\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x01')
|
|
dns.qd[0].name = esp_host + u'.local'
|
|
print("Created query for esp host: {} ".format(dns.__repr__()))
|
|
return dns.pack()
|
|
|
|
|
|
def get_dns_answer_to_mdns(tester_host):
|
|
dns = dpkt.dns.DNS(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
|
|
dns.op = dpkt.dns.DNS_QR | dpkt.dns.DNS_AA
|
|
dns.rcode = dpkt.dns.DNS_RCODE_NOERR
|
|
arr = dpkt.dns.DNS.RR()
|
|
arr.cls = dpkt.dns.DNS_IN
|
|
arr.type = dpkt.dns.DNS_A
|
|
arr.name = tester_host
|
|
arr.ip = socket.inet_aton('127.0.0.1')
|
|
dns. an.append(arr)
|
|
print("Created answer to mdns query: {} ".format(dns.__repr__()))
|
|
return dns.pack()
|
|
|
|
|
|
def get_dns_answer_to_mdns_lwip(tester_host, id):
|
|
dns = dpkt.dns.DNS(b"\x5e\x39\x84\x00\x00\x01\x00\x01\x00\x00\x00\x00\x0a\x64\x61\x76\x69\x64"
|
|
b"\x2d\x63\x6f\x6d\x70\x05\x6c\x6f\x63\x61\x6c\x00\x00\x01\x00\x01\xc0\x0c"
|
|
b"\x00\x01\x00\x01\x00\x00\x00\x0a\x00\x04\xc0\xa8\x0a\x6c")
|
|
dns.qd[0].name = tester_host
|
|
dns.an[0].name = tester_host
|
|
dns.an[0].ip = socket.inet_aton('127.0.0.1')
|
|
dns.an[0].rdata = socket.inet_aton('127.0.0.1')
|
|
dns.id = id
|
|
print("Created answer to mdns (lwip) query: {} ".format(dns.__repr__()))
|
|
return dns.pack()
|
|
|
|
|
|
def mdns_server(esp_host):
|
|
global esp_answered
|
|
UDP_IP = "0.0.0.0"
|
|
UDP_PORT = 5353
|
|
MCAST_GRP = '224.0.0.251'
|
|
TESTER_NAME = u'tinytester.local'
|
|
TESTER_NAME_LWIP = u'tinytester-lwip.local'
|
|
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
|
|
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
|
|
sock.bind((UDP_IP,UDP_PORT))
|
|
mreq = struct.pack("4sl", socket.inet_aton(MCAST_GRP), socket.INADDR_ANY)
|
|
sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
|
|
sock.settimeout(30)
|
|
while not stop_mdns_server.is_set():
|
|
try:
|
|
if not esp_answered.is_set():
|
|
sock.sendto(get_dns_query_for_esp(esp_host), (MCAST_GRP,UDP_PORT))
|
|
time.sleep(0.2)
|
|
data, addr = sock.recvfrom(1024)
|
|
dns = dpkt.dns.DNS(data)
|
|
if len(dns.qd) > 0 and dns.qd[0].type == dpkt.dns.DNS_A:
|
|
if dns.qd[0].name == TESTER_NAME:
|
|
print("Received query: {} ".format(dns.__repr__()))
|
|
sock.sendto(get_dns_answer_to_mdns(TESTER_NAME), (MCAST_GRP,UDP_PORT))
|
|
elif dns.qd[0].name == TESTER_NAME_LWIP:
|
|
print("Received query: {} ".format(dns.__repr__()))
|
|
sock.sendto(get_dns_answer_to_mdns_lwip(TESTER_NAME_LWIP, dns.id), addr)
|
|
if len(dns.an) > 0 and dns.an[0].type == dpkt.dns.DNS_A:
|
|
if dns.an[0].name == esp_host + u'.local':
|
|
print("Received answer to esp32-mdns query: {}".format(dns.__repr__()))
|
|
esp_answered.set()
|
|
except socket.timeout:
|
|
break
|
|
except dpkt.UnpackError:
|
|
continue
|
|
|
|
|
|
@ttfw_idf.idf_example_test(env_tag="Example_WIFI")
|
|
def test_examples_protocol_mdns(env, extra_data):
|
|
global stop_mdns_server
|
|
"""
|
|
steps: |
|
|
1. join AP + init mdns example
|
|
2. get the dut host name (and IP address)
|
|
3. check the mdns name is accessible
|
|
4. check DUT output if mdns advertized host is resolved
|
|
"""
|
|
dut1 = env.get_dut("mdns-test", "examples/protocols/mdns", dut_class=ttfw_idf.ESP32DUT)
|
|
# check and log bin size
|
|
binary_file = os.path.join(dut1.app.binary_path, "mdns-test.bin")
|
|
bin_size = os.path.getsize(binary_file)
|
|
ttfw_idf.log_performance("mdns-test_bin_size", "{}KB".format(bin_size // 1024))
|
|
ttfw_idf.check_performance("mdns-test_bin_size", bin_size // 1024)
|
|
# 1. start mdns application
|
|
dut1.start_app()
|
|
# 2. get the dut host name (and IP address)
|
|
specific_host = dut1.expect(re.compile(r"mdns hostname set to: \[([^\]]+)\]"), timeout=30)
|
|
specific_host = str(specific_host[0])
|
|
thread1 = Thread(target=mdns_server, args=(specific_host,))
|
|
thread1.start()
|
|
try:
|
|
dut1.expect(re.compile(r" sta ip: ([^,]+),"), timeout=30)
|
|
except DUT.ExpectTimeout:
|
|
stop_mdns_server.set()
|
|
thread1.join()
|
|
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
|
|
# 3. check the mdns name is accessible
|
|
if not esp_answered.wait(timeout=30):
|
|
raise ValueError('Test has failed: did not receive mdns answer within timeout')
|
|
# 4. check DUT output if mdns advertized host is resolved
|
|
try:
|
|
dut1.expect(re.compile(r"mdns-test: Query A: tinytester.local resolved to: 127.0.0.1"), timeout=30)
|
|
dut1.expect(re.compile(r"mdns-test: gethostbyname: tinytester-lwip.local resolved to: 127.0.0.1"), timeout=30)
|
|
dut1.expect(re.compile(r"mdns-test: getaddrinfo: tinytester-lwip.local resolved to: 127.0.0.1"), timeout=30)
|
|
finally:
|
|
stop_mdns_server.set()
|
|
thread1.join()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
test_examples_protocol_mdns()
|